From 7c73576f2e8eb0d3c4e872e8c8b2f69dd75f11cf Mon Sep 17 00:00:00 2001 From: Ryan VanderMeulen Date: Fri, 18 Dec 2015 14:35:36 -0500 Subject: [PATCH] Bug 1233801 - Update pdf.js to version 1.3.110. r=bdahl --- browser/extensions/pdfjs/README.mozilla | 2 +- browser/extensions/pdfjs/content/build/pdf.js | 7930 +-- .../pdfjs/content/build/pdf.worker.js | 51535 ++++++++-------- .../extensions/pdfjs/content/web/viewer.css | 4 + .../extensions/pdfjs/content/web/viewer.js | 118 +- 5 files changed, 30367 insertions(+), 29222 deletions(-) diff --git a/browser/extensions/pdfjs/README.mozilla b/browser/extensions/pdfjs/README.mozilla index b082ad2eef9..513f4e63d18 100644 --- a/browser/extensions/pdfjs/README.mozilla +++ b/browser/extensions/pdfjs/README.mozilla @@ -1,3 +1,3 @@ This is the pdf.js project output, https://github.com/mozilla/pdf.js -Current extension version is: 1.3.76 +Current extension version is: 1.3.110 diff --git a/browser/extensions/pdfjs/content/build/pdf.js b/browser/extensions/pdfjs/content/build/pdf.js index 6540b34a5f8..1120316472a 100644 --- a/browser/extensions/pdfjs/content/build/pdf.js +++ b/browser/extensions/pdfjs/content/build/pdf.js @@ -20,8 +20,8 @@ if (typeof PDFJS === 'undefined') { (typeof window !== 'undefined' ? window : this).PDFJS = {}; } -PDFJS.version = '1.3.76'; -PDFJS.build = 'f7ec866'; +PDFJS.version = '1.3.110'; +PDFJS.build = '42beb0c'; (function pdfjsWrapper() { // Use strict in our context only - users might not want it @@ -29,9 +29,41 @@ PDFJS.build = 'f7ec866'; -var globalScope = (typeof window === 'undefined') ? this : window; +(function (root, factory) { + { + factory((root.pdfjsSharedGlobal = {})); + } +}(this, function (exports) { -var isWorker = (typeof window === 'undefined'); + var globalScope = (typeof window !== 'undefined') ? window : + (typeof global !== 'undefined') ? global : + (typeof self !== 'undefined') ? self : this; + + var isWorker = (typeof window === 'undefined'); + + // The global PDFJS object exposes the API + // In production, it will be declared outside a global wrapper + // In development, it will be declared here + if (!globalScope.PDFJS) { + globalScope.PDFJS = {}; + } + + globalScope.PDFJS.pdfBug = false; + + exports.globalScope = globalScope; + exports.isWorker = isWorker; + exports.PDFJS = globalScope.PDFJS; +})); + + +(function (root, factory) { + { + factory((root.pdfjsSharedUtil = {}), root.pdfjsSharedGlobal); + } +}(this, function (exports, sharedGlobal) { + +var PDFJS = sharedGlobal.PDFJS; +var globalScope = sharedGlobal.globalScope; var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0]; @@ -55,9 +87,32 @@ var ImageKind = { }; var AnnotationType = { - WIDGET: 1, - TEXT: 2, - LINK: 3 + TEXT: 1, + LINK: 2, + FREETEXT: 3, + LINE: 4, + SQUARE: 5, + CIRCLE: 6, + POLYGON: 7, + POLYLINE: 8, + HIGHLIGHT: 9, + UNDERLINE: 10, + SQUIGGLY: 11, + STRIKEOUT: 12, + STAMP: 13, + CARET: 14, + INK: 15, + POPUP: 16, + FILEATTACHMENT: 17, + SOUND: 18, + MOVIE: 19, + WIDGET: 20, + SCREEN: 21, + PRINTERMARK: 22, + TRAPNET: 23, + WATERMARK: 24, + THREED: 25, + REDACT: 26 }; var AnnotationFlag = { @@ -108,15 +163,6 @@ var FontType = { MMTYPE1: 10 }; -// The global PDFJS object exposes the API -// In production, it will be declared outside a global wrapper -// In development, it will be declared here -if (!globalScope.PDFJS) { - globalScope.PDFJS = {}; -} - -globalScope.PDFJS.pdfBug = false; - PDFJS.VERBOSITY_LEVELS = { errors: 0, warnings: 1, @@ -966,41 +1012,14 @@ function isString(v) { return typeof v === 'string'; } -function isName(v) { - return v instanceof Name; -} - -function isCmd(v, cmd) { - return v instanceof Cmd && (cmd === undefined || v.cmd === cmd); -} - -function isDict(v, type) { - if (!(v instanceof Dict)) { - return false; - } - if (!type) { - return true; - } - var dictType = v.get('Type'); - return isName(dictType) && dictType.name === type; -} - function isArray(v) { return v instanceof Array; } -function isStream(v) { - return typeof v === 'object' && v !== null && v.getBytes !== undefined; -} - function isArrayBuffer(v) { return typeof v === 'object' && v !== null && v.byteLength !== undefined; } -function isRef(v) { - return v instanceof Ref; -} - /** * Promise Capability object. * @@ -1328,6 +1347,4056 @@ function loadJpegStream(id, imageUrl, objs) { img.src = imageUrl; } +exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX; +exports.IDENTITY_MATRIX = IDENTITY_MATRIX; +exports.OPS = OPS; +exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES; +exports.AnnotationBorderStyleType = AnnotationBorderStyleType; +exports.AnnotationFlag = AnnotationFlag; +exports.AnnotationType = AnnotationType; +exports.FontType = FontType; +exports.ImageKind = ImageKind; +exports.InvalidPDFException = InvalidPDFException; +exports.LinkTarget = LinkTarget; +exports.LinkTargetStringMap = LinkTargetStringMap; +exports.MessageHandler = MessageHandler; +exports.MissingDataException = MissingDataException; +exports.MissingPDFException = MissingPDFException; +exports.NotImplementedException = NotImplementedException; +exports.PasswordException = PasswordException; +exports.PasswordResponses = PasswordResponses; +exports.StatTimer = StatTimer; +exports.StreamType = StreamType; +exports.TextRenderingMode = TextRenderingMode; +exports.UnexpectedResponseException = UnexpectedResponseException; +exports.UnknownErrorException = UnknownErrorException; +exports.Util = Util; +exports.XRefParseException = XRefParseException; +exports.assert = assert; +exports.bytesToString = bytesToString; +exports.combineUrl = combineUrl; +exports.createPromiseCapability = createPromiseCapability; +exports.deprecated = deprecated; +exports.error = error; +exports.info = info; +exports.isArray = isArray; +exports.isArrayBuffer = isArrayBuffer; +exports.isBool = isBool; +exports.isEmptyObj = isEmptyObj; +exports.isExternalLinkTargetSet = isExternalLinkTargetSet; +exports.isInt = isInt; +exports.isNum = isNum; +exports.isString = isString; +exports.isValidUrl = isValidUrl; +exports.loadJpegStream = loadJpegStream; +exports.log2 = log2; +exports.readInt8 = readInt8; +exports.readUint16 = readUint16; +exports.readUint32 = readUint32; +exports.shadow = shadow; +exports.string32 = string32; +exports.stringToBytes = stringToBytes; +exports.stringToPDFString = stringToPDFString; +exports.stringToUTF8String = stringToUTF8String; +exports.utf8StringToString = utf8StringToString; +exports.warn = warn; +})); + + +(function (root, factory) { + { + factory((root.pdfjsDisplayDOMUtils = {}), root.pdfjsSharedGlobal); + } +}(this, function (exports, sharedGlobal) { + +var PDFJS = sharedGlobal.PDFJS; + +/** + * Optimised CSS custom property getter/setter. + * @class + */ +var CustomStyle = (function CustomStyleClosure() { + + // As noted on: http://www.zachstronaut.com/posts/2009/02/17/ + // animate-css-transforms-firefox-webkit.html + // in some versions of IE9 it is critical that ms appear in this list + // before Moz + var prefixes = ['ms', 'Moz', 'Webkit', 'O']; + var _cache = {}; + + function CustomStyle() {} + + CustomStyle.getProp = function get(propName, element) { + // check cache only when no element is given + if (arguments.length === 1 && typeof _cache[propName] === 'string') { + return _cache[propName]; + } + + element = element || document.documentElement; + var style = element.style, prefixed, uPropName; + + // test standard property first + if (typeof style[propName] === 'string') { + return (_cache[propName] = propName); + } + + // capitalize + uPropName = propName.charAt(0).toUpperCase() + propName.slice(1); + + // test vendor specific properties + for (var i = 0, l = prefixes.length; i < l; i++) { + prefixed = prefixes[i] + uPropName; + if (typeof style[prefixed] === 'string') { + return (_cache[propName] = prefixed); + } + } + + //if all fails then set to undefined + return (_cache[propName] = 'undefined'); + }; + + CustomStyle.setProp = function set(propName, element, str) { + var prop = this.getProp(propName); + if (prop !== 'undefined') { + element.style[prop] = str; + } + }; + + return CustomStyle; +})(); + +PDFJS.CustomStyle = CustomStyle; + +exports.CustomStyle = CustomStyle; +})); + + +(function (root, factory) { + { + factory((root.pdfjsDisplayAnnotationLayer = {}), root.pdfjsSharedUtil, + root.pdfjsDisplayDOMUtils); + } +}(this, function (exports, sharedUtil, displayDOMUtils) { + +var AnnotationBorderStyleType = sharedUtil.AnnotationBorderStyleType; +var AnnotationType = sharedUtil.AnnotationType; +var Util = sharedUtil.Util; +var isExternalLinkTargetSet = sharedUtil.Util; +var LinkTargetStringMap = sharedUtil.LinkTargetStringMap; +var warn = sharedUtil.warn; +var CustomStyle = displayDOMUtils.CustomStyle; + +var ANNOT_MIN_SIZE = 10; // px + +var AnnotationLayer = (function AnnotationLayerClosure() { + // TODO(mack): This dupes some of the logic in CanvasGraphics.setFont() + function setTextStyles(element, item, fontObj) { + var style = element.style; + style.fontSize = item.fontSize + 'px'; + style.direction = item.fontDirection < 0 ? 'rtl': 'ltr'; + + if (!fontObj) { + return; + } + + style.fontWeight = fontObj.black ? + (fontObj.bold ? 'bolder' : 'bold') : + (fontObj.bold ? 'bold' : 'normal'); + style.fontStyle = fontObj.italic ? 'italic' : 'normal'; + + var fontName = fontObj.loadedName; + var fontFamily = fontName ? '"' + fontName + '", ' : ''; + // Use a reasonable default font if the font doesn't specify a fallback + var fallbackName = fontObj.fallbackName || 'Helvetica, sans-serif'; + style.fontFamily = fontFamily + fallbackName; + } + + function getContainer(data, page, viewport) { + var container = document.createElement('section'); + var width = data.rect[2] - data.rect[0]; + var height = data.rect[3] - data.rect[1]; + + container.setAttribute('data-annotation-id', data.id); + + data.rect = Util.normalizeRect([ + data.rect[0], + page.view[3] - data.rect[1] + page.view[1], + data.rect[2], + page.view[3] - data.rect[3] + page.view[1] + ]); + + CustomStyle.setProp('transform', container, + 'matrix(' + viewport.transform.join(',') + ')'); + CustomStyle.setProp('transformOrigin', container, + -data.rect[0] + 'px ' + -data.rect[1] + 'px'); + + if (data.borderStyle.width > 0) { + container.style.borderWidth = data.borderStyle.width + 'px'; + if (data.borderStyle.style !== AnnotationBorderStyleType.UNDERLINE) { + // Underline styles only have a bottom border, so we do not need + // to adjust for all borders. This yields a similar result as + // Adobe Acrobat/Reader. + width = width - 2 * data.borderStyle.width; + height = height - 2 * data.borderStyle.width; + } + + var horizontalRadius = data.borderStyle.horizontalCornerRadius; + var verticalRadius = data.borderStyle.verticalCornerRadius; + if (horizontalRadius > 0 || verticalRadius > 0) { + var radius = horizontalRadius + 'px / ' + verticalRadius + 'px'; + CustomStyle.setProp('borderRadius', container, radius); + } + + switch (data.borderStyle.style) { + case AnnotationBorderStyleType.SOLID: + container.style.borderStyle = 'solid'; + break; + + case AnnotationBorderStyleType.DASHED: + container.style.borderStyle = 'dashed'; + break; + + case AnnotationBorderStyleType.BEVELED: + warn('Unimplemented border style: beveled'); + break; + + case AnnotationBorderStyleType.INSET: + warn('Unimplemented border style: inset'); + break; + + case AnnotationBorderStyleType.UNDERLINE: + container.style.borderBottomStyle = 'solid'; + break; + + default: + break; + } + + if (data.color) { + container.style.borderColor = + Util.makeCssRgb(data.color[0] | 0, + data.color[1] | 0, + data.color[2] | 0); + } else { + // Transparent (invisible) border, so do not draw it at all. + container.style.borderWidth = 0; + } + } + + container.style.left = data.rect[0] + 'px'; + container.style.top = data.rect[1] + 'px'; + + container.style.width = width + 'px'; + container.style.height = height + 'px'; + + return container; + } + + function getHtmlElementForTextWidgetAnnotation(item, page, viewport) { + var container = getContainer(item, page, viewport); + + var content = document.createElement('div'); + content.textContent = item.fieldValue; + var textAlignment = item.textAlignment; + content.style.textAlign = ['left', 'center', 'right'][textAlignment]; + content.style.verticalAlign = 'middle'; + content.style.display = 'table-cell'; + + var fontObj = item.fontRefName ? + page.commonObjs.getData(item.fontRefName) : null; + setTextStyles(content, item, fontObj); + + container.appendChild(content); + + return container; + } + + function getHtmlElementForTextAnnotation(item, page, viewport) { + var rect = item.rect; + + // sanity check because of OOo-generated PDFs + if ((rect[3] - rect[1]) < ANNOT_MIN_SIZE) { + rect[3] = rect[1] + ANNOT_MIN_SIZE; + } + if ((rect[2] - rect[0]) < ANNOT_MIN_SIZE) { + rect[2] = rect[0] + (rect[3] - rect[1]); // make it square + } + + var container = getContainer(item, page, viewport); + container.className = 'annotText'; + + var image = document.createElement('img'); + image.style.height = container.style.height; + image.style.width = container.style.width; + var iconName = item.name; + image.src = PDFJS.imageResourcesPath + 'annotation-' + + iconName.toLowerCase() + '.svg'; + image.alt = '[{{type}} Annotation]'; + image.dataset.l10nId = 'text_annotation_type'; + image.dataset.l10nArgs = JSON.stringify({type: iconName}); + + var contentWrapper = document.createElement('div'); + contentWrapper.className = 'annotTextContentWrapper'; + contentWrapper.style.left = Math.floor(rect[2] - rect[0] + 5) + 'px'; + contentWrapper.style.top = '-10px'; + + var content = document.createElement('div'); + content.className = 'annotTextContent'; + content.setAttribute('hidden', true); + + var i, ii; + if (item.hasBgColor && item.color) { + var color = item.color; + + // Enlighten the color (70%) + var BACKGROUND_ENLIGHT = 0.7; + var r = BACKGROUND_ENLIGHT * (255 - color[0]) + color[0]; + var g = BACKGROUND_ENLIGHT * (255 - color[1]) + color[1]; + var b = BACKGROUND_ENLIGHT * (255 - color[2]) + color[2]; + content.style.backgroundColor = Util.makeCssRgb(r | 0, g | 0, b | 0); + } + + var title = document.createElement('h1'); + var text = document.createElement('p'); + title.textContent = item.title; + + if (!item.content && !item.title) { + content.setAttribute('hidden', true); + } else { + var e = document.createElement('span'); + var lines = item.content.split(/(?:\r\n?|\n)/); + for (i = 0, ii = lines.length; i < ii; ++i) { + var line = lines[i]; + e.appendChild(document.createTextNode(line)); + if (i < (ii - 1)) { + e.appendChild(document.createElement('br')); + } + } + text.appendChild(e); + + var pinned = false; + + var showAnnotation = function showAnnotation(pin) { + if (pin) { + pinned = true; + } + if (content.hasAttribute('hidden')) { + container.style.zIndex += 1; + content.removeAttribute('hidden'); + } + }; + + var hideAnnotation = function hideAnnotation(unpin) { + if (unpin) { + pinned = false; + } + if (!content.hasAttribute('hidden') && !pinned) { + container.style.zIndex -= 1; + content.setAttribute('hidden', true); + } + }; + + var toggleAnnotation = function toggleAnnotation() { + if (pinned) { + hideAnnotation(true); + } else { + showAnnotation(true); + } + }; + + image.addEventListener('click', function image_clickHandler() { + toggleAnnotation(); + }, false); + image.addEventListener('mouseover', function image_mouseOverHandler() { + showAnnotation(); + }, false); + image.addEventListener('mouseout', function image_mouseOutHandler() { + hideAnnotation(); + }, false); + + content.addEventListener('click', function content_clickHandler() { + hideAnnotation(true); + }, false); + } + + content.appendChild(title); + content.appendChild(text); + contentWrapper.appendChild(content); + container.appendChild(image); + container.appendChild(contentWrapper); + + return container; + } + + function getHtmlElementForLinkAnnotation(item, page, viewport, linkService) { + function bindLink(link, dest) { + link.href = linkService.getDestinationHash(dest); + link.onclick = function annotationsLayerBuilderLinksOnclick() { + if (dest) { + linkService.navigateTo(dest); + } + return false; + }; + if (dest) { + link.className = 'internalLink'; + } + } + + function bindNamedAction(link, action) { + link.href = linkService.getAnchorUrl(''); + link.onclick = function annotationsLayerBuilderNamedActionOnClick() { + linkService.executeNamedAction(action); + return false; + }; + link.className = 'internalLink'; + } + + var container = getContainer(item, page, viewport); + container.className = 'annotLink'; + + var link = document.createElement('a'); + link.href = link.title = item.url || ''; + + if (item.url && isExternalLinkTargetSet()) { + link.target = LinkTargetStringMap[PDFJS.externalLinkTarget]; + } + + // Strip referrer + if (item.url) { + link.rel = PDFJS.externalLinkRel; + } + + if (!item.url) { + if (item.action) { + bindNamedAction(link, item.action); + } else { + bindLink(link, ('dest' in item) ? item.dest : null); + } + } + + container.appendChild(link); + + return container; + } + + function getHtmlElement(data, page, viewport, linkService) { + switch (data.annotationType) { + case AnnotationType.WIDGET: + return getHtmlElementForTextWidgetAnnotation(data, page, viewport); + case AnnotationType.TEXT: + return getHtmlElementForTextAnnotation(data, page, viewport); + case AnnotationType.LINK: + return getHtmlElementForLinkAnnotation(data, page, viewport, + linkService); + default: + throw new Error('Unsupported annotationType: ' + data.annotationType); + } + } + + function render(viewport, div, annotations, page, linkService) { + for (var i = 0, ii = annotations.length; i < ii; i++) { + var data = annotations[i]; + if (!data || !data.hasHtml) { + continue; + } + + var element = getHtmlElement(data, page, viewport, linkService); + div.appendChild(element); + } + } + + function update(viewport, div, annotations) { + for (var i = 0, ii = annotations.length; i < ii; i++) { + var data = annotations[i]; + var element = div.querySelector( + '[data-annotation-id="' + data.id + '"]'); + if (element) { + CustomStyle.setProp('transform', element, + 'matrix(' + viewport.transform.join(',') + ')'); + } + } + div.removeAttribute('hidden'); + } + + return { + render: render, + update: update + }; +})(); +PDFJS.AnnotationLayer = AnnotationLayer; + +exports.AnnotationLayer = AnnotationLayer; +})); + + +(function (root, factory) { + { + factory((root.pdfjsDisplayFontLoader = {}), root.pdfjsSharedUtil, + root.pdfjsSharedGlobal); + } +}(this, function (exports, sharedUtil, sharedGlobal) { + +var assert = sharedUtil.assert; +var bytesToString = sharedUtil.bytesToString; +var string32 = sharedUtil.string32; +var shadow = sharedUtil.shadow; +var warn = sharedUtil.warn; + +var PDFJS = sharedGlobal.PDFJS; +var globalScope = sharedGlobal.globalScope; +var isWorker = sharedGlobal.isWorker; + +function FontLoader(docId) { + this.docId = docId; + this.styleElement = null; +} +FontLoader.prototype = { + insertRule: function fontLoaderInsertRule(rule) { + var styleElement = this.styleElement; + if (!styleElement) { + styleElement = this.styleElement = document.createElement('style'); + styleElement.id = 'PDFJS_FONT_STYLE_TAG_' + this.docId; + document.documentElement.getElementsByTagName('head')[0].appendChild( + styleElement); + } + + var styleSheet = styleElement.sheet; + styleSheet.insertRule(rule, styleSheet.cssRules.length); + }, + + clear: function fontLoaderClear() { + var styleElement = this.styleElement; + if (styleElement) { + styleElement.parentNode.removeChild(styleElement); + styleElement = this.styleElement = null; + } + }, + bind: function fontLoaderBind(fonts, callback) { + assert(!isWorker, 'bind() shall be called from main thread'); + + for (var i = 0, ii = fonts.length; i < ii; i++) { + var font = fonts[i]; + if (font.attached) { + continue; + } + + font.attached = true; + var rule = font.createFontFaceRule(); + if (rule) { + this.insertRule(rule); + } + } + + setTimeout(callback); + } +}; + +var FontFaceObject = (function FontFaceObjectClosure() { + function FontFaceObject(translatedData) { + this.compiledGlyphs = {}; + // importing translated data + for (var i in translatedData) { + this[i] = translatedData[i]; + } + } + Object.defineProperty(FontFaceObject, 'isEvalSupported', { + get: function () { + var evalSupport = false; + if (PDFJS.isEvalSupported) { + try { + /* jshint evil: true */ + new Function(''); + evalSupport = true; + } catch (e) {} + } + return shadow(this, 'isEvalSupported', evalSupport); + }, + enumerable: true, + configurable: true + }); + FontFaceObject.prototype = { + + createFontFaceRule: function FontFaceObject_createFontFaceRule() { + if (!this.data) { + return null; + } + + if (PDFJS.disableFontFace) { + this.disableFontFace = true; + return null; + } + + var data = bytesToString(new Uint8Array(this.data)); + var fontName = this.loadedName; + + // Add the font-face rule to the document + var url = ('url(data:' + this.mimetype + ';base64,' + + window.btoa(data) + ');'); + var rule = '@font-face { font-family:"' + fontName + '";src:' + url + '}'; + + if (PDFJS.pdfBug && 'FontInspector' in globalScope && + globalScope['FontInspector'].enabled) { + globalScope['FontInspector'].fontAdded(this, url); + } + + return rule; + }, + + getPathGenerator: + function FontFaceObject_getPathGenerator(objs, character) { + if (!(character in this.compiledGlyphs)) { + var cmds = objs.get(this.loadedName + '_path_' + character); + var current, i, len; + + // If we can, compile cmds into JS for MAXIMUM SPEED + if (FontFaceObject.isEvalSupported) { + var args, js = ''; + for (i = 0, len = cmds.length; i < len; i++) { + current = cmds[i]; + + if (current.args !== undefined) { + args = current.args.join(','); + } else { + args = ''; + } + + js += 'c.' + current.cmd + '(' + args + ');\n'; + } + /* jshint -W054 */ + this.compiledGlyphs[character] = new Function('c', 'size', js); + } else { + // But fall back on using Function.prototype.apply() if we're + // blocked from using eval() for whatever reason (like CSP policies) + this.compiledGlyphs[character] = function(c, size) { + for (i = 0, len = cmds.length; i < len; i++) { + current = cmds[i]; + + if (current.cmd === 'scale') { + current.args = [size, -size]; + } + + c[current.cmd].apply(c, current.args); + } + }; + } + } + return this.compiledGlyphs[character]; + } + }; + return FontFaceObject; +})(); + +exports.FontFaceObject = FontFaceObject; +exports.FontLoader = FontLoader; +})); + + +(function (root, factory) { + { + factory((root.pdfjsDisplayMetadata = {}), root.pdfjsSharedUtil); + } +}(this, function (exports, sharedUtil) { + +var error = sharedUtil.error; + +var Metadata = PDFJS.Metadata = (function MetadataClosure() { + function fixMetadata(meta) { + return meta.replace(/>\\376\\377([^<]+)/g, function(all, codes) { + var bytes = codes.replace(/\\([0-3])([0-7])([0-7])/g, + function(code, d1, d2, d3) { + return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1); + }); + var chars = ''; + for (var i = 0; i < bytes.length; i += 2) { + var code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1); + chars += code >= 32 && code < 127 && code !== 60 && code !== 62 && + code !== 38 && false ? String.fromCharCode(code) : + '&#x' + (0x10000 + code).toString(16).substring(1) + ';'; + } + return '>' + chars; + }); + } + + function Metadata(meta) { + if (typeof meta === 'string') { + // Ghostscript produces invalid metadata + meta = fixMetadata(meta); + + var parser = new DOMParser(); + meta = parser.parseFromString(meta, 'application/xml'); + } else if (!(meta instanceof Document)) { + error('Metadata: Invalid metadata object'); + } + + this.metaDocument = meta; + this.metadata = {}; + this.parse(); + } + + Metadata.prototype = { + parse: function Metadata_parse() { + var doc = this.metaDocument; + var rdf = doc.documentElement; + + if (rdf.nodeName.toLowerCase() !== 'rdf:rdf') { // Wrapped in + rdf = rdf.firstChild; + while (rdf && rdf.nodeName.toLowerCase() !== 'rdf:rdf') { + rdf = rdf.nextSibling; + } + } + + var nodeName = (rdf) ? rdf.nodeName.toLowerCase() : null; + if (!rdf || nodeName !== 'rdf:rdf' || !rdf.hasChildNodes()) { + return; + } + + var children = rdf.childNodes, desc, entry, name, i, ii, length, iLength; + for (i = 0, length = children.length; i < length; i++) { + desc = children[i]; + if (desc.nodeName.toLowerCase() !== 'rdf:description') { + continue; + } + + for (ii = 0, iLength = desc.childNodes.length; ii < iLength; ii++) { + if (desc.childNodes[ii].nodeName.toLowerCase() !== '#text') { + entry = desc.childNodes[ii]; + name = entry.nodeName.toLowerCase(); + this.metadata[name] = entry.textContent.trim(); + } + } + } + }, + + get: function Metadata_get(name) { + return this.metadata[name] || null; + }, + + has: function Metadata_has(name) { + return typeof this.metadata[name] !== 'undefined'; + } + }; + + return Metadata; +})(); + +exports.Metadata = Metadata; +})); + + +(function (root, factory) { + { + factory((root.pdfjsDisplayTextLayer = {}), root.pdfjsSharedUtil); + } +}(this, function (exports, sharedUtil) { + +var createPromiseCapability = sharedUtil.createPromiseCapability; + +/** + * Text layer render parameters. + * + * @typedef {Object} TextLayerRenderParameters + * @property {TextContent} textContent - Text content to render (the object is + * returned by the page's getTextContent() method). + * @property {HTMLElement} container - HTML element that will contain text runs. + * @property {PDFJS.PageViewport} viewport - The target viewport to properly + * layout the text runs. + * @property {Array} textDivs - (optional) HTML elements that are correspond + * the text items of the textContent input. This is output and shall be + * initially be set to empty array. + * @property {number} timeout - (optional) Delay in milliseconds before + * rendering of the text runs occurs. + */ +var renderTextLayer = (function renderTextLayerClosure() { + var MAX_TEXT_DIVS_TO_RENDER = 100000; + + var NonWhitespaceRegexp = /\S/; + + function isAllWhitespace(str) { + return !NonWhitespaceRegexp.test(str); + } + + function appendText(textDivs, viewport, geom, styles) { + var style = styles[geom.fontName]; + var textDiv = document.createElement('div'); + textDivs.push(textDiv); + if (isAllWhitespace(geom.str)) { + textDiv.dataset.isWhitespace = true; + return; + } + var tx = PDFJS.Util.transform(viewport.transform, geom.transform); + var angle = Math.atan2(tx[1], tx[0]); + if (style.vertical) { + angle += Math.PI / 2; + } + var fontHeight = Math.sqrt((tx[2] * tx[2]) + (tx[3] * tx[3])); + var fontAscent = fontHeight; + if (style.ascent) { + fontAscent = style.ascent * fontAscent; + } else if (style.descent) { + fontAscent = (1 + style.descent) * fontAscent; + } + + var left; + var top; + if (angle === 0) { + left = tx[4]; + top = tx[5] - fontAscent; + } else { + left = tx[4] + (fontAscent * Math.sin(angle)); + top = tx[5] - (fontAscent * Math.cos(angle)); + } + textDiv.style.left = left + 'px'; + textDiv.style.top = top + 'px'; + textDiv.style.fontSize = fontHeight + 'px'; + textDiv.style.fontFamily = style.fontFamily; + + textDiv.textContent = geom.str; + // |fontName| is only used by the Font Inspector. This test will succeed + // when e.g. the Font Inspector is off but the Stepper is on, but it's + // not worth the effort to do a more accurate test. + if (PDFJS.pdfBug) { + textDiv.dataset.fontName = geom.fontName; + } + // Storing into dataset will convert number into string. + if (angle !== 0) { + textDiv.dataset.angle = angle * (180 / Math.PI); + } + // We don't bother scaling single-char text divs, because it has very + // little effect on text highlighting. This makes scrolling on docs with + // lots of such divs a lot faster. + if (geom.str.length > 1) { + if (style.vertical) { + textDiv.dataset.canvasWidth = geom.height * viewport.scale; + } else { + textDiv.dataset.canvasWidth = geom.width * viewport.scale; + } + } + } + + function render(task) { + if (task._canceled) { + return; + } + var textLayerFrag = task._container; + var textDivs = task._textDivs; + var capability = task._capability; + var textDivsLength = textDivs.length; + + // No point in rendering many divs as it would make the browser + // unusable even after the divs are rendered. + if (textDivsLength > MAX_TEXT_DIVS_TO_RENDER) { + capability.resolve(); + return; + } + + var canvas = document.createElement('canvas'); + canvas.mozOpaque = true; + var ctx = canvas.getContext('2d', {alpha: false}); + + var lastFontSize; + var lastFontFamily; + for (var i = 0; i < textDivsLength; i++) { + var textDiv = textDivs[i]; + if (textDiv.dataset.isWhitespace !== undefined) { + continue; + } + + var fontSize = textDiv.style.fontSize; + var fontFamily = textDiv.style.fontFamily; + + // Only build font string and set to context if different from last. + if (fontSize !== lastFontSize || fontFamily !== lastFontFamily) { + ctx.font = fontSize + ' ' + fontFamily; + lastFontSize = fontSize; + lastFontFamily = fontFamily; + } + + var width = ctx.measureText(textDiv.textContent).width; + if (width > 0) { + textLayerFrag.appendChild(textDiv); + var transform; + if (textDiv.dataset.canvasWidth !== undefined) { + // Dataset values come of type string. + var textScale = textDiv.dataset.canvasWidth / width; + transform = 'scaleX(' + textScale + ')'; + } else { + transform = ''; + } + var rotation = textDiv.dataset.angle; + if (rotation) { + transform = 'rotate(' + rotation + 'deg) ' + transform; + } + if (transform) { + PDFJS.CustomStyle.setProp('transform' , textDiv, transform); + } + } + } + capability.resolve(); + } + + /** + * Text layer rendering task. + * + * @param {TextContent} textContent + * @param {HTMLElement} container + * @param {PDFJS.PageViewport} viewport + * @param {Array} textDivs + * @private + */ + function TextLayerRenderTask(textContent, container, viewport, textDivs) { + this._textContent = textContent; + this._container = container; + this._viewport = viewport; + textDivs = textDivs || []; + this._textDivs = textDivs; + this._canceled = false; + this._capability = createPromiseCapability(); + this._renderTimer = null; + } + TextLayerRenderTask.prototype = { + get promise() { + return this._capability.promise; + }, + + cancel: function TextLayer_cancel() { + this._canceled = true; + if (this._renderTimer !== null) { + clearTimeout(this._renderTimer); + this._renderTimer = null; + } + this._capability.reject('canceled'); + }, + + _render: function TextLayer_render(timeout) { + var textItems = this._textContent.items; + var styles = this._textContent.styles; + var textDivs = this._textDivs; + var viewport = this._viewport; + for (var i = 0, len = textItems.length; i < len; i++) { + appendText(textDivs, viewport, textItems[i], styles); + } + + if (!timeout) { // Render right away + render(this); + } else { // Schedule + var self = this; + this._renderTimer = setTimeout(function() { + render(self); + self._renderTimer = null; + }, timeout); + } + } + }; + + + /** + * Starts rendering of the text layer. + * + * @param {TextLayerRenderParameters} renderParameters + * @returns {TextLayerRenderTask} + */ + function renderTextLayer(renderParameters) { + var task = new TextLayerRenderTask(renderParameters.textContent, + renderParameters.container, + renderParameters.viewport, + renderParameters.textDivs); + task._render(renderParameters.timeout); + return task; + } + + return renderTextLayer; +})(); + +PDFJS.renderTextLayer = renderTextLayer; + +exports.renderTextLayer = renderTextLayer; +})); + + +(function (root, factory) { + { + factory((root.pdfjsDisplayWebGL = {}), root.pdfjsSharedUtil); + } +}(this, function (exports, sharedUtil) { + +var shadow = sharedUtil.shadow; + +var WebGLUtils = (function WebGLUtilsClosure() { + function loadShader(gl, code, shaderType) { + var shader = gl.createShader(shaderType); + gl.shaderSource(shader, code); + gl.compileShader(shader); + var compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS); + if (!compiled) { + var errorMsg = gl.getShaderInfoLog(shader); + throw new Error('Error during shader compilation: ' + errorMsg); + } + return shader; + } + function createVertexShader(gl, code) { + return loadShader(gl, code, gl.VERTEX_SHADER); + } + function createFragmentShader(gl, code) { + return loadShader(gl, code, gl.FRAGMENT_SHADER); + } + function createProgram(gl, shaders) { + var program = gl.createProgram(); + for (var i = 0, ii = shaders.length; i < ii; ++i) { + gl.attachShader(program, shaders[i]); + } + gl.linkProgram(program); + var linked = gl.getProgramParameter(program, gl.LINK_STATUS); + if (!linked) { + var errorMsg = gl.getProgramInfoLog(program); + throw new Error('Error during program linking: ' + errorMsg); + } + return program; + } + function createTexture(gl, image, textureId) { + gl.activeTexture(textureId); + var texture = gl.createTexture(); + gl.bindTexture(gl.TEXTURE_2D, texture); + + // Set the parameters so we can render any size image. + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); + gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); + + // Upload the image into the texture. + gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, image); + return texture; + } + + var currentGL, currentCanvas; + function generateGL() { + if (currentGL) { + return; + } + currentCanvas = document.createElement('canvas'); + currentGL = currentCanvas.getContext('webgl', + { premultipliedalpha: false }); + } + + var smaskVertexShaderCode = '\ + attribute vec2 a_position; \ + attribute vec2 a_texCoord; \ + \ + uniform vec2 u_resolution; \ + \ + varying vec2 v_texCoord; \ + \ + void main() { \ + vec2 clipSpace = (a_position / u_resolution) * 2.0 - 1.0; \ + gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \ + \ + v_texCoord = a_texCoord; \ + } '; + + var smaskFragmentShaderCode = '\ + precision mediump float; \ + \ + uniform vec4 u_backdrop; \ + uniform int u_subtype; \ + uniform sampler2D u_image; \ + uniform sampler2D u_mask; \ + \ + varying vec2 v_texCoord; \ + \ + void main() { \ + vec4 imageColor = texture2D(u_image, v_texCoord); \ + vec4 maskColor = texture2D(u_mask, v_texCoord); \ + if (u_backdrop.a > 0.0) { \ + maskColor.rgb = maskColor.rgb * maskColor.a + \ + u_backdrop.rgb * (1.0 - maskColor.a); \ + } \ + float lum; \ + if (u_subtype == 0) { \ + lum = maskColor.a; \ + } else { \ + lum = maskColor.r * 0.3 + maskColor.g * 0.59 + \ + maskColor.b * 0.11; \ + } \ + imageColor.a *= lum; \ + imageColor.rgb *= imageColor.a; \ + gl_FragColor = imageColor; \ + } '; + + var smaskCache = null; + + function initSmaskGL() { + var canvas, gl; + + generateGL(); + canvas = currentCanvas; + currentCanvas = null; + gl = currentGL; + currentGL = null; + + // setup a GLSL program + var vertexShader = createVertexShader(gl, smaskVertexShaderCode); + var fragmentShader = createFragmentShader(gl, smaskFragmentShaderCode); + var program = createProgram(gl, [vertexShader, fragmentShader]); + gl.useProgram(program); + + var cache = {}; + cache.gl = gl; + cache.canvas = canvas; + cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution'); + cache.positionLocation = gl.getAttribLocation(program, 'a_position'); + cache.backdropLocation = gl.getUniformLocation(program, 'u_backdrop'); + cache.subtypeLocation = gl.getUniformLocation(program, 'u_subtype'); + + var texCoordLocation = gl.getAttribLocation(program, 'a_texCoord'); + var texLayerLocation = gl.getUniformLocation(program, 'u_image'); + var texMaskLocation = gl.getUniformLocation(program, 'u_mask'); + + // provide texture coordinates for the rectangle. + var texCoordBuffer = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, texCoordBuffer); + gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ + 0.0, 0.0, + 1.0, 0.0, + 0.0, 1.0, + 0.0, 1.0, + 1.0, 0.0, + 1.0, 1.0]), gl.STATIC_DRAW); + gl.enableVertexAttribArray(texCoordLocation); + gl.vertexAttribPointer(texCoordLocation, 2, gl.FLOAT, false, 0, 0); + + gl.uniform1i(texLayerLocation, 0); + gl.uniform1i(texMaskLocation, 1); + + smaskCache = cache; + } + + function composeSMask(layer, mask, properties) { + var width = layer.width, height = layer.height; + + if (!smaskCache) { + initSmaskGL(); + } + var cache = smaskCache,canvas = cache.canvas, gl = cache.gl; + canvas.width = width; + canvas.height = height; + gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight); + gl.uniform2f(cache.resolutionLocation, width, height); + + if (properties.backdrop) { + gl.uniform4f(cache.resolutionLocation, properties.backdrop[0], + properties.backdrop[1], properties.backdrop[2], 1); + } else { + gl.uniform4f(cache.resolutionLocation, 0, 0, 0, 0); + } + gl.uniform1i(cache.subtypeLocation, + properties.subtype === 'Luminosity' ? 1 : 0); + + // Create a textures + var texture = createTexture(gl, layer, gl.TEXTURE0); + var maskTexture = createTexture(gl, mask, gl.TEXTURE1); + + + // Create a buffer and put a single clipspace rectangle in + // it (2 triangles) + var buffer = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, buffer); + gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ + 0, 0, + width, 0, + 0, height, + 0, height, + width, 0, + width, height]), gl.STATIC_DRAW); + gl.enableVertexAttribArray(cache.positionLocation); + gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0); + + // draw + gl.clearColor(0, 0, 0, 0); + gl.enable(gl.BLEND); + gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA); + gl.clear(gl.COLOR_BUFFER_BIT); + + gl.drawArrays(gl.TRIANGLES, 0, 6); + + gl.flush(); + + gl.deleteTexture(texture); + gl.deleteTexture(maskTexture); + gl.deleteBuffer(buffer); + + return canvas; + } + + var figuresVertexShaderCode = '\ + attribute vec2 a_position; \ + attribute vec3 a_color; \ + \ + uniform vec2 u_resolution; \ + uniform vec2 u_scale; \ + uniform vec2 u_offset; \ + \ + varying vec4 v_color; \ + \ + void main() { \ + vec2 position = (a_position + u_offset) * u_scale; \ + vec2 clipSpace = (position / u_resolution) * 2.0 - 1.0; \ + gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \ + \ + v_color = vec4(a_color / 255.0, 1.0); \ + } '; + + var figuresFragmentShaderCode = '\ + precision mediump float; \ + \ + varying vec4 v_color; \ + \ + void main() { \ + gl_FragColor = v_color; \ + } '; + + var figuresCache = null; + + function initFiguresGL() { + var canvas, gl; + + generateGL(); + canvas = currentCanvas; + currentCanvas = null; + gl = currentGL; + currentGL = null; + + // setup a GLSL program + var vertexShader = createVertexShader(gl, figuresVertexShaderCode); + var fragmentShader = createFragmentShader(gl, figuresFragmentShaderCode); + var program = createProgram(gl, [vertexShader, fragmentShader]); + gl.useProgram(program); + + var cache = {}; + cache.gl = gl; + cache.canvas = canvas; + cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution'); + cache.scaleLocation = gl.getUniformLocation(program, 'u_scale'); + cache.offsetLocation = gl.getUniformLocation(program, 'u_offset'); + cache.positionLocation = gl.getAttribLocation(program, 'a_position'); + cache.colorLocation = gl.getAttribLocation(program, 'a_color'); + + figuresCache = cache; + } + + function drawFigures(width, height, backgroundColor, figures, context) { + if (!figuresCache) { + initFiguresGL(); + } + var cache = figuresCache, canvas = cache.canvas, gl = cache.gl; + + canvas.width = width; + canvas.height = height; + gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight); + gl.uniform2f(cache.resolutionLocation, width, height); + + // count triangle points + var count = 0; + var i, ii, rows; + for (i = 0, ii = figures.length; i < ii; i++) { + switch (figures[i].type) { + case 'lattice': + rows = (figures[i].coords.length / figures[i].verticesPerRow) | 0; + count += (rows - 1) * (figures[i].verticesPerRow - 1) * 6; + break; + case 'triangles': + count += figures[i].coords.length; + break; + } + } + // transfer data + var coords = new Float32Array(count * 2); + var colors = new Uint8Array(count * 3); + var coordsMap = context.coords, colorsMap = context.colors; + var pIndex = 0, cIndex = 0; + for (i = 0, ii = figures.length; i < ii; i++) { + var figure = figures[i], ps = figure.coords, cs = figure.colors; + switch (figure.type) { + case 'lattice': + var cols = figure.verticesPerRow; + rows = (ps.length / cols) | 0; + for (var row = 1; row < rows; row++) { + var offset = row * cols + 1; + for (var col = 1; col < cols; col++, offset++) { + coords[pIndex] = coordsMap[ps[offset - cols - 1]]; + coords[pIndex + 1] = coordsMap[ps[offset - cols - 1] + 1]; + coords[pIndex + 2] = coordsMap[ps[offset - cols]]; + coords[pIndex + 3] = coordsMap[ps[offset - cols] + 1]; + coords[pIndex + 4] = coordsMap[ps[offset - 1]]; + coords[pIndex + 5] = coordsMap[ps[offset - 1] + 1]; + colors[cIndex] = colorsMap[cs[offset - cols - 1]]; + colors[cIndex + 1] = colorsMap[cs[offset - cols - 1] + 1]; + colors[cIndex + 2] = colorsMap[cs[offset - cols - 1] + 2]; + colors[cIndex + 3] = colorsMap[cs[offset - cols]]; + colors[cIndex + 4] = colorsMap[cs[offset - cols] + 1]; + colors[cIndex + 5] = colorsMap[cs[offset - cols] + 2]; + colors[cIndex + 6] = colorsMap[cs[offset - 1]]; + colors[cIndex + 7] = colorsMap[cs[offset - 1] + 1]; + colors[cIndex + 8] = colorsMap[cs[offset - 1] + 2]; + + coords[pIndex + 6] = coords[pIndex + 2]; + coords[pIndex + 7] = coords[pIndex + 3]; + coords[pIndex + 8] = coords[pIndex + 4]; + coords[pIndex + 9] = coords[pIndex + 5]; + coords[pIndex + 10] = coordsMap[ps[offset]]; + coords[pIndex + 11] = coordsMap[ps[offset] + 1]; + colors[cIndex + 9] = colors[cIndex + 3]; + colors[cIndex + 10] = colors[cIndex + 4]; + colors[cIndex + 11] = colors[cIndex + 5]; + colors[cIndex + 12] = colors[cIndex + 6]; + colors[cIndex + 13] = colors[cIndex + 7]; + colors[cIndex + 14] = colors[cIndex + 8]; + colors[cIndex + 15] = colorsMap[cs[offset]]; + colors[cIndex + 16] = colorsMap[cs[offset] + 1]; + colors[cIndex + 17] = colorsMap[cs[offset] + 2]; + pIndex += 12; + cIndex += 18; + } + } + break; + case 'triangles': + for (var j = 0, jj = ps.length; j < jj; j++) { + coords[pIndex] = coordsMap[ps[j]]; + coords[pIndex + 1] = coordsMap[ps[j] + 1]; + colors[cIndex] = colorsMap[cs[j]]; + colors[cIndex + 1] = colorsMap[cs[j] + 1]; + colors[cIndex + 2] = colorsMap[cs[j] + 2]; + pIndex += 2; + cIndex += 3; + } + break; + } + } + + // draw + if (backgroundColor) { + gl.clearColor(backgroundColor[0] / 255, backgroundColor[1] / 255, + backgroundColor[2] / 255, 1.0); + } else { + gl.clearColor(0, 0, 0, 0); + } + gl.clear(gl.COLOR_BUFFER_BIT); + + var coordsBuffer = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, coordsBuffer); + gl.bufferData(gl.ARRAY_BUFFER, coords, gl.STATIC_DRAW); + gl.enableVertexAttribArray(cache.positionLocation); + gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0); + + var colorsBuffer = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, colorsBuffer); + gl.bufferData(gl.ARRAY_BUFFER, colors, gl.STATIC_DRAW); + gl.enableVertexAttribArray(cache.colorLocation); + gl.vertexAttribPointer(cache.colorLocation, 3, gl.UNSIGNED_BYTE, false, + 0, 0); + + gl.uniform2f(cache.scaleLocation, context.scaleX, context.scaleY); + gl.uniform2f(cache.offsetLocation, context.offsetX, context.offsetY); + + gl.drawArrays(gl.TRIANGLES, 0, count); + + gl.flush(); + + gl.deleteBuffer(coordsBuffer); + gl.deleteBuffer(colorsBuffer); + + return canvas; + } + + function cleanup() { + if (smaskCache && smaskCache.canvas) { + smaskCache.canvas.width = 0; + smaskCache.canvas.height = 0; + } + if (figuresCache && figuresCache.canvas) { + figuresCache.canvas.width = 0; + figuresCache.canvas.height = 0; + } + smaskCache = null; + figuresCache = null; + } + + return { + get isEnabled() { + if (PDFJS.disableWebGL) { + return false; + } + var enabled = false; + try { + generateGL(); + enabled = !!currentGL; + } catch (e) { } + return shadow(this, 'isEnabled', enabled); + }, + composeSMask: composeSMask, + drawFigures: drawFigures, + clear: cleanup + }; +})(); + +exports.WebGLUtils = WebGLUtils; +})); + + +(function (root, factory) { + { + factory((root.pdfjsDisplayPatternHelper = {}), root.pdfjsSharedUtil, + root.pdfjsDisplayWebGL); + } +}(this, function (exports, sharedUtil, displayWebGL) { + +var Util = sharedUtil.Util; +var info = sharedUtil.info; +var isArray = sharedUtil.isArray; +var error = sharedUtil.error; +var WebGLUtils = displayWebGL.WebGLUtils; + +var ShadingIRs = {}; + +ShadingIRs.RadialAxial = { + fromIR: function RadialAxial_fromIR(raw) { + var type = raw[1]; + var colorStops = raw[2]; + var p0 = raw[3]; + var p1 = raw[4]; + var r0 = raw[5]; + var r1 = raw[6]; + return { + type: 'Pattern', + getPattern: function RadialAxial_getPattern(ctx) { + var grad; + if (type === 'axial') { + grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]); + } else if (type === 'radial') { + grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1); + } + + for (var i = 0, ii = colorStops.length; i < ii; ++i) { + var c = colorStops[i]; + grad.addColorStop(c[0], c[1]); + } + return grad; + } + }; + } +}; + +var createMeshCanvas = (function createMeshCanvasClosure() { + function drawTriangle(data, context, p1, p2, p3, c1, c2, c3) { + // Very basic Gouraud-shaded triangle rasterization algorithm. + var coords = context.coords, colors = context.colors; + var bytes = data.data, rowSize = data.width * 4; + var tmp; + if (coords[p1 + 1] > coords[p2 + 1]) { + tmp = p1; p1 = p2; p2 = tmp; tmp = c1; c1 = c2; c2 = tmp; + } + if (coords[p2 + 1] > coords[p3 + 1]) { + tmp = p2; p2 = p3; p3 = tmp; tmp = c2; c2 = c3; c3 = tmp; + } + if (coords[p1 + 1] > coords[p2 + 1]) { + tmp = p1; p1 = p2; p2 = tmp; tmp = c1; c1 = c2; c2 = tmp; + } + var x1 = (coords[p1] + context.offsetX) * context.scaleX; + var y1 = (coords[p1 + 1] + context.offsetY) * context.scaleY; + var x2 = (coords[p2] + context.offsetX) * context.scaleX; + var y2 = (coords[p2 + 1] + context.offsetY) * context.scaleY; + var x3 = (coords[p3] + context.offsetX) * context.scaleX; + var y3 = (coords[p3 + 1] + context.offsetY) * context.scaleY; + if (y1 >= y3) { + return; + } + var c1r = colors[c1], c1g = colors[c1 + 1], c1b = colors[c1 + 2]; + var c2r = colors[c2], c2g = colors[c2 + 1], c2b = colors[c2 + 2]; + var c3r = colors[c3], c3g = colors[c3 + 1], c3b = colors[c3 + 2]; + + var minY = Math.round(y1), maxY = Math.round(y3); + var xa, car, cag, cab; + var xb, cbr, cbg, cbb; + var k; + for (var y = minY; y <= maxY; y++) { + if (y < y2) { + k = y < y1 ? 0 : y1 === y2 ? 1 : (y1 - y) / (y1 - y2); + xa = x1 - (x1 - x2) * k; + car = c1r - (c1r - c2r) * k; + cag = c1g - (c1g - c2g) * k; + cab = c1b - (c1b - c2b) * k; + } else { + k = y > y3 ? 1 : y2 === y3 ? 0 : (y2 - y) / (y2 - y3); + xa = x2 - (x2 - x3) * k; + car = c2r - (c2r - c3r) * k; + cag = c2g - (c2g - c3g) * k; + cab = c2b - (c2b - c3b) * k; + } + k = y < y1 ? 0 : y > y3 ? 1 : (y1 - y) / (y1 - y3); + xb = x1 - (x1 - x3) * k; + cbr = c1r - (c1r - c3r) * k; + cbg = c1g - (c1g - c3g) * k; + cbb = c1b - (c1b - c3b) * k; + var x1_ = Math.round(Math.min(xa, xb)); + var x2_ = Math.round(Math.max(xa, xb)); + var j = rowSize * y + x1_ * 4; + for (var x = x1_; x <= x2_; x++) { + k = (xa - x) / (xa - xb); + k = k < 0 ? 0 : k > 1 ? 1 : k; + bytes[j++] = (car - (car - cbr) * k) | 0; + bytes[j++] = (cag - (cag - cbg) * k) | 0; + bytes[j++] = (cab - (cab - cbb) * k) | 0; + bytes[j++] = 255; + } + } + } + + function drawFigure(data, figure, context) { + var ps = figure.coords; + var cs = figure.colors; + var i, ii; + switch (figure.type) { + case 'lattice': + var verticesPerRow = figure.verticesPerRow; + var rows = Math.floor(ps.length / verticesPerRow) - 1; + var cols = verticesPerRow - 1; + for (i = 0; i < rows; i++) { + var q = i * verticesPerRow; + for (var j = 0; j < cols; j++, q++) { + drawTriangle(data, context, + ps[q], ps[q + 1], ps[q + verticesPerRow], + cs[q], cs[q + 1], cs[q + verticesPerRow]); + drawTriangle(data, context, + ps[q + verticesPerRow + 1], ps[q + 1], ps[q + verticesPerRow], + cs[q + verticesPerRow + 1], cs[q + 1], cs[q + verticesPerRow]); + } + } + break; + case 'triangles': + for (i = 0, ii = ps.length; i < ii; i += 3) { + drawTriangle(data, context, + ps[i], ps[i + 1], ps[i + 2], + cs[i], cs[i + 1], cs[i + 2]); + } + break; + default: + error('illigal figure'); + break; + } + } + + function createMeshCanvas(bounds, combinesScale, coords, colors, figures, + backgroundColor, cachedCanvases) { + // we will increase scale on some weird factor to let antialiasing take + // care of "rough" edges + var EXPECTED_SCALE = 1.1; + // MAX_PATTERN_SIZE is used to avoid OOM situation. + var MAX_PATTERN_SIZE = 3000; // 10in @ 300dpi shall be enough + + var offsetX = Math.floor(bounds[0]); + var offsetY = Math.floor(bounds[1]); + var boundsWidth = Math.ceil(bounds[2]) - offsetX; + var boundsHeight = Math.ceil(bounds[3]) - offsetY; + + var width = Math.min(Math.ceil(Math.abs(boundsWidth * combinesScale[0] * + EXPECTED_SCALE)), MAX_PATTERN_SIZE); + var height = Math.min(Math.ceil(Math.abs(boundsHeight * combinesScale[1] * + EXPECTED_SCALE)), MAX_PATTERN_SIZE); + var scaleX = boundsWidth / width; + var scaleY = boundsHeight / height; + + var context = { + coords: coords, + colors: colors, + offsetX: -offsetX, + offsetY: -offsetY, + scaleX: 1 / scaleX, + scaleY: 1 / scaleY + }; + + var canvas, tmpCanvas, i, ii; + if (WebGLUtils.isEnabled) { + canvas = WebGLUtils.drawFigures(width, height, backgroundColor, + figures, context); + + // https://bugzilla.mozilla.org/show_bug.cgi?id=972126 + tmpCanvas = cachedCanvases.getCanvas('mesh', width, height, false); + tmpCanvas.context.drawImage(canvas, 0, 0); + canvas = tmpCanvas.canvas; + } else { + tmpCanvas = cachedCanvases.getCanvas('mesh', width, height, false); + var tmpCtx = tmpCanvas.context; + + var data = tmpCtx.createImageData(width, height); + if (backgroundColor) { + var bytes = data.data; + for (i = 0, ii = bytes.length; i < ii; i += 4) { + bytes[i] = backgroundColor[0]; + bytes[i + 1] = backgroundColor[1]; + bytes[i + 2] = backgroundColor[2]; + bytes[i + 3] = 255; + } + } + for (i = 0; i < figures.length; i++) { + drawFigure(data, figures[i], context); + } + tmpCtx.putImageData(data, 0, 0); + canvas = tmpCanvas.canvas; + } + + return {canvas: canvas, offsetX: offsetX, offsetY: offsetY, + scaleX: scaleX, scaleY: scaleY}; + } + return createMeshCanvas; +})(); + +ShadingIRs.Mesh = { + fromIR: function Mesh_fromIR(raw) { + //var type = raw[1]; + var coords = raw[2]; + var colors = raw[3]; + var figures = raw[4]; + var bounds = raw[5]; + var matrix = raw[6]; + //var bbox = raw[7]; + var background = raw[8]; + return { + type: 'Pattern', + getPattern: function Mesh_getPattern(ctx, owner, shadingFill) { + var scale; + if (shadingFill) { + scale = Util.singularValueDecompose2dScale(ctx.mozCurrentTransform); + } else { + // Obtain scale from matrix and current transformation matrix. + scale = Util.singularValueDecompose2dScale(owner.baseTransform); + if (matrix) { + var matrixScale = Util.singularValueDecompose2dScale(matrix); + scale = [scale[0] * matrixScale[0], + scale[1] * matrixScale[1]]; + } + } + + + // Rasterizing on the main thread since sending/queue large canvases + // might cause OOM. + var temporaryPatternCanvas = createMeshCanvas(bounds, scale, coords, + colors, figures, shadingFill ? null : background, + owner.cachedCanvases); + + if (!shadingFill) { + ctx.setTransform.apply(ctx, owner.baseTransform); + if (matrix) { + ctx.transform.apply(ctx, matrix); + } + } + + ctx.translate(temporaryPatternCanvas.offsetX, + temporaryPatternCanvas.offsetY); + ctx.scale(temporaryPatternCanvas.scaleX, + temporaryPatternCanvas.scaleY); + + return ctx.createPattern(temporaryPatternCanvas.canvas, 'no-repeat'); + } + }; + } +}; + +ShadingIRs.Dummy = { + fromIR: function Dummy_fromIR() { + return { + type: 'Pattern', + getPattern: function Dummy_fromIR_getPattern() { + return 'hotpink'; + } + }; + } +}; + +function getShadingPatternFromIR(raw) { + var shadingIR = ShadingIRs[raw[0]]; + if (!shadingIR) { + error('Unknown IR type: ' + raw[0]); + } + return shadingIR.fromIR(raw); +} + +var TilingPattern = (function TilingPatternClosure() { + var PaintType = { + COLORED: 1, + UNCOLORED: 2 + }; + + var MAX_PATTERN_SIZE = 3000; // 10in @ 300dpi shall be enough + + function TilingPattern(IR, color, ctx, canvasGraphicsFactory, baseTransform) { + this.operatorList = IR[2]; + this.matrix = IR[3] || [1, 0, 0, 1, 0, 0]; + this.bbox = IR[4]; + this.xstep = IR[5]; + this.ystep = IR[6]; + this.paintType = IR[7]; + this.tilingType = IR[8]; + this.color = color; + this.canvasGraphicsFactory = canvasGraphicsFactory; + this.baseTransform = baseTransform; + this.type = 'Pattern'; + this.ctx = ctx; + } + + TilingPattern.prototype = { + createPatternCanvas: function TilinPattern_createPatternCanvas(owner) { + var operatorList = this.operatorList; + var bbox = this.bbox; + var xstep = this.xstep; + var ystep = this.ystep; + var paintType = this.paintType; + var tilingType = this.tilingType; + var color = this.color; + var canvasGraphicsFactory = this.canvasGraphicsFactory; + + info('TilingType: ' + tilingType); + + var x0 = bbox[0], y0 = bbox[1], x1 = bbox[2], y1 = bbox[3]; + + var topLeft = [x0, y0]; + // we want the canvas to be as large as the step size + var botRight = [x0 + xstep, y0 + ystep]; + + var width = botRight[0] - topLeft[0]; + var height = botRight[1] - topLeft[1]; + + // Obtain scale from matrix and current transformation matrix. + var matrixScale = Util.singularValueDecompose2dScale(this.matrix); + var curMatrixScale = Util.singularValueDecompose2dScale( + this.baseTransform); + var combinedScale = [matrixScale[0] * curMatrixScale[0], + matrixScale[1] * curMatrixScale[1]]; + + // MAX_PATTERN_SIZE is used to avoid OOM situation. + // Use width and height values that are as close as possible to the end + // result when the pattern is used. Too low value makes the pattern look + // blurry. Too large value makes it look too crispy. + width = Math.min(Math.ceil(Math.abs(width * combinedScale[0])), + MAX_PATTERN_SIZE); + + height = Math.min(Math.ceil(Math.abs(height * combinedScale[1])), + MAX_PATTERN_SIZE); + + var tmpCanvas = owner.cachedCanvases.getCanvas('pattern', + width, height, true); + var tmpCtx = tmpCanvas.context; + var graphics = canvasGraphicsFactory.createCanvasGraphics(tmpCtx); + graphics.groupLevel = owner.groupLevel; + + this.setFillAndStrokeStyleToContext(tmpCtx, paintType, color); + + this.setScale(width, height, xstep, ystep); + this.transformToScale(graphics); + + // transform coordinates to pattern space + var tmpTranslate = [1, 0, 0, 1, -topLeft[0], -topLeft[1]]; + graphics.transform.apply(graphics, tmpTranslate); + + this.clipBbox(graphics, bbox, x0, y0, x1, y1); + + graphics.executeOperatorList(operatorList); + return tmpCanvas.canvas; + }, + + setScale: function TilingPattern_setScale(width, height, xstep, ystep) { + this.scale = [width / xstep, height / ystep]; + }, + + transformToScale: function TilingPattern_transformToScale(graphics) { + var scale = this.scale; + var tmpScale = [scale[0], 0, 0, scale[1], 0, 0]; + graphics.transform.apply(graphics, tmpScale); + }, + + scaleToContext: function TilingPattern_scaleToContext() { + var scale = this.scale; + this.ctx.scale(1 / scale[0], 1 / scale[1]); + }, + + clipBbox: function clipBbox(graphics, bbox, x0, y0, x1, y1) { + if (bbox && isArray(bbox) && bbox.length === 4) { + var bboxWidth = x1 - x0; + var bboxHeight = y1 - y0; + graphics.ctx.rect(x0, y0, bboxWidth, bboxHeight); + graphics.clip(); + graphics.endPath(); + } + }, + + setFillAndStrokeStyleToContext: + function setFillAndStrokeStyleToContext(context, paintType, color) { + switch (paintType) { + case PaintType.COLORED: + var ctx = this.ctx; + context.fillStyle = ctx.fillStyle; + context.strokeStyle = ctx.strokeStyle; + break; + case PaintType.UNCOLORED: + var cssColor = Util.makeCssRgb(color[0], color[1], color[2]); + context.fillStyle = cssColor; + context.strokeStyle = cssColor; + break; + default: + error('Unsupported paint type: ' + paintType); + } + }, + + getPattern: function TilingPattern_getPattern(ctx, owner) { + var temporaryPatternCanvas = this.createPatternCanvas(owner); + + ctx = this.ctx; + ctx.setTransform.apply(ctx, this.baseTransform); + ctx.transform.apply(ctx, this.matrix); + this.scaleToContext(); + + return ctx.createPattern(temporaryPatternCanvas, 'repeat'); + } + }; + + return TilingPattern; +})(); + +exports.getShadingPatternFromIR = getShadingPatternFromIR; +exports.TilingPattern = TilingPattern; +})); + + +(function (root, factory) { + { + factory((root.pdfjsDisplayCanvas = {}), root.pdfjsSharedUtil, + root.pdfjsDisplayPatternHelper, root.pdfjsDisplayWebGL); + } +}(this, function (exports, sharedUtil, displayPatternHelper, displayWebGL) { + +var FONT_IDENTITY_MATRIX = sharedUtil.FONT_IDENTITY_MATRIX; +var IDENTITY_MATRIX = sharedUtil.IDENTITY_MATRIX; +var ImageKind = sharedUtil.ImageKind; +var OPS = sharedUtil.OPS; +var TextRenderingMode = sharedUtil.TextRenderingMode; +var Uint32ArrayView = sharedUtil.Uint32ArrayView; +var Util = sharedUtil.Util; +var assert = sharedUtil.assert; +var info = sharedUtil.info; +var isNum = sharedUtil.isNum; +var isArray = sharedUtil.isArray; +var error = sharedUtil.error; +var shadow = sharedUtil.shadow; +var warn = sharedUtil.warn; +var TilingPattern = displayPatternHelper.TilingPattern; +var getShadingPatternFromIR = displayPatternHelper.getShadingPatternFromIR; +var WebGLUtils = displayWebGL.WebGLUtils; + +// contexts store most of the state we need natively. +// However, PDF needs a bit more state, which we store here. + +// Minimal font size that would be used during canvas fillText operations. +var MIN_FONT_SIZE = 16; +// Maximum font size that would be used during canvas fillText operations. +var MAX_FONT_SIZE = 100; +var MAX_GROUP_SIZE = 4096; + +// Heuristic value used when enforcing minimum line widths. +var MIN_WIDTH_FACTOR = 0.65; + +var COMPILE_TYPE3_GLYPHS = true; +var MAX_SIZE_TO_COMPILE = 1000; + +var FULL_CHUNK_HEIGHT = 16; + +function createScratchCanvas(width, height) { + var canvas = document.createElement('canvas'); + canvas.width = width; + canvas.height = height; + return canvas; +} + +function addContextCurrentTransform(ctx) { + // If the context doesn't expose a `mozCurrentTransform`, add a JS based one. + if (!ctx.mozCurrentTransform) { + ctx._originalSave = ctx.save; + ctx._originalRestore = ctx.restore; + ctx._originalRotate = ctx.rotate; + ctx._originalScale = ctx.scale; + ctx._originalTranslate = ctx.translate; + ctx._originalTransform = ctx.transform; + ctx._originalSetTransform = ctx.setTransform; + + ctx._transformMatrix = ctx._transformMatrix || [1, 0, 0, 1, 0, 0]; + ctx._transformStack = []; + + Object.defineProperty(ctx, 'mozCurrentTransform', { + get: function getCurrentTransform() { + return this._transformMatrix; + } + }); + + Object.defineProperty(ctx, 'mozCurrentTransformInverse', { + get: function getCurrentTransformInverse() { + // Calculation done using WolframAlpha: + // http://www.wolframalpha.com/input/? + // i=Inverse+{{a%2C+c%2C+e}%2C+{b%2C+d%2C+f}%2C+{0%2C+0%2C+1}} + + var m = this._transformMatrix; + var a = m[0], b = m[1], c = m[2], d = m[3], e = m[4], f = m[5]; + + var ad_bc = a * d - b * c; + var bc_ad = b * c - a * d; + + return [ + d / ad_bc, + b / bc_ad, + c / bc_ad, + a / ad_bc, + (d * e - c * f) / bc_ad, + (b * e - a * f) / ad_bc + ]; + } + }); + + ctx.save = function ctxSave() { + var old = this._transformMatrix; + this._transformStack.push(old); + this._transformMatrix = old.slice(0, 6); + + this._originalSave(); + }; + + ctx.restore = function ctxRestore() { + var prev = this._transformStack.pop(); + if (prev) { + this._transformMatrix = prev; + this._originalRestore(); + } + }; + + ctx.translate = function ctxTranslate(x, y) { + var m = this._transformMatrix; + m[4] = m[0] * x + m[2] * y + m[4]; + m[5] = m[1] * x + m[3] * y + m[5]; + + this._originalTranslate(x, y); + }; + + ctx.scale = function ctxScale(x, y) { + var m = this._transformMatrix; + m[0] = m[0] * x; + m[1] = m[1] * x; + m[2] = m[2] * y; + m[3] = m[3] * y; + + this._originalScale(x, y); + }; + + ctx.transform = function ctxTransform(a, b, c, d, e, f) { + var m = this._transformMatrix; + this._transformMatrix = [ + m[0] * a + m[2] * b, + m[1] * a + m[3] * b, + m[0] * c + m[2] * d, + m[1] * c + m[3] * d, + m[0] * e + m[2] * f + m[4], + m[1] * e + m[3] * f + m[5] + ]; + + ctx._originalTransform(a, b, c, d, e, f); + }; + + ctx.setTransform = function ctxSetTransform(a, b, c, d, e, f) { + this._transformMatrix = [a, b, c, d, e, f]; + + ctx._originalSetTransform(a, b, c, d, e, f); + }; + + ctx.rotate = function ctxRotate(angle) { + var cosValue = Math.cos(angle); + var sinValue = Math.sin(angle); + + var m = this._transformMatrix; + this._transformMatrix = [ + m[0] * cosValue + m[2] * sinValue, + m[1] * cosValue + m[3] * sinValue, + m[0] * (-sinValue) + m[2] * cosValue, + m[1] * (-sinValue) + m[3] * cosValue, + m[4], + m[5] + ]; + + this._originalRotate(angle); + }; + } +} + +var CachedCanvases = (function CachedCanvasesClosure() { + function CachedCanvases() { + this.cache = Object.create(null); + } + CachedCanvases.prototype = { + getCanvas: function CachedCanvases_getCanvas(id, width, height, + trackTransform) { + var canvasEntry; + if (this.cache[id] !== undefined) { + canvasEntry = this.cache[id]; + canvasEntry.canvas.width = width; + canvasEntry.canvas.height = height; + // reset canvas transform for emulated mozCurrentTransform, if needed + canvasEntry.context.setTransform(1, 0, 0, 1, 0, 0); + } else { + var canvas = createScratchCanvas(width, height); + var ctx = canvas.getContext('2d'); + if (trackTransform) { + addContextCurrentTransform(ctx); + } + this.cache[id] = canvasEntry = {canvas: canvas, context: ctx}; + } + return canvasEntry; + }, + clear: function () { + for (var id in this.cache) { + var canvasEntry = this.cache[id]; + // Zeroing the width and height causes Firefox to release graphics + // resources immediately, which can greatly reduce memory consumption. + canvasEntry.canvas.width = 0; + canvasEntry.canvas.height = 0; + delete this.cache[id]; + } + } + }; + return CachedCanvases; +})(); + +function compileType3Glyph(imgData) { + var POINT_TO_PROCESS_LIMIT = 1000; + + var width = imgData.width, height = imgData.height; + var i, j, j0, width1 = width + 1; + var points = new Uint8Array(width1 * (height + 1)); + var POINT_TYPES = + new Uint8Array([0, 2, 4, 0, 1, 0, 5, 4, 8, 10, 0, 8, 0, 2, 1, 0]); + + // decodes bit-packed mask data + var lineSize = (width + 7) & ~7, data0 = imgData.data; + var data = new Uint8Array(lineSize * height), pos = 0, ii; + for (i = 0, ii = data0.length; i < ii; i++) { + var mask = 128, elem = data0[i]; + while (mask > 0) { + data[pos++] = (elem & mask) ? 0 : 255; + mask >>= 1; + } + } + + // finding iteresting points: every point is located between mask pixels, + // so there will be points of the (width + 1)x(height + 1) grid. Every point + // will have flags assigned based on neighboring mask pixels: + // 4 | 8 + // --P-- + // 2 | 1 + // We are interested only in points with the flags: + // - outside corners: 1, 2, 4, 8; + // - inside corners: 7, 11, 13, 14; + // - and, intersections: 5, 10. + var count = 0; + pos = 0; + if (data[pos] !== 0) { + points[0] = 1; + ++count; + } + for (j = 1; j < width; j++) { + if (data[pos] !== data[pos + 1]) { + points[j] = data[pos] ? 2 : 1; + ++count; + } + pos++; + } + if (data[pos] !== 0) { + points[j] = 2; + ++count; + } + for (i = 1; i < height; i++) { + pos = i * lineSize; + j0 = i * width1; + if (data[pos - lineSize] !== data[pos]) { + points[j0] = data[pos] ? 1 : 8; + ++count; + } + // 'sum' is the position of the current pixel configuration in the 'TYPES' + // array (in order 8-1-2-4, so we can use '>>2' to shift the column). + var sum = (data[pos] ? 4 : 0) + (data[pos - lineSize] ? 8 : 0); + for (j = 1; j < width; j++) { + sum = (sum >> 2) + (data[pos + 1] ? 4 : 0) + + (data[pos - lineSize + 1] ? 8 : 0); + if (POINT_TYPES[sum]) { + points[j0 + j] = POINT_TYPES[sum]; + ++count; + } + pos++; + } + if (data[pos - lineSize] !== data[pos]) { + points[j0 + j] = data[pos] ? 2 : 4; + ++count; + } + + if (count > POINT_TO_PROCESS_LIMIT) { + return null; + } + } + + pos = lineSize * (height - 1); + j0 = i * width1; + if (data[pos] !== 0) { + points[j0] = 8; + ++count; + } + for (j = 1; j < width; j++) { + if (data[pos] !== data[pos + 1]) { + points[j0 + j] = data[pos] ? 4 : 8; + ++count; + } + pos++; + } + if (data[pos] !== 0) { + points[j0 + j] = 4; + ++count; + } + if (count > POINT_TO_PROCESS_LIMIT) { + return null; + } + + // building outlines + var steps = new Int32Array([0, width1, -1, 0, -width1, 0, 0, 0, 1]); + var outlines = []; + for (i = 0; count && i <= height; i++) { + var p = i * width1; + var end = p + width; + while (p < end && !points[p]) { + p++; + } + if (p === end) { + continue; + } + var coords = [p % width1, i]; + + var type = points[p], p0 = p, pp; + do { + var step = steps[type]; + do { + p += step; + } while (!points[p]); + + pp = points[p]; + if (pp !== 5 && pp !== 10) { + // set new direction + type = pp; + // delete mark + points[p] = 0; + } else { // type is 5 or 10, ie, a crossing + // set new direction + type = pp & ((0x33 * type) >> 4); + // set new type for "future hit" + points[p] &= (type >> 2 | type << 2); + } + + coords.push(p % width1); + coords.push((p / width1) | 0); + --count; + } while (p0 !== p); + outlines.push(coords); + --i; + } + + var drawOutline = function(c) { + c.save(); + // the path shall be painted in [0..1]x[0..1] space + c.scale(1 / width, -1 / height); + c.translate(0, -height); + c.beginPath(); + for (var i = 0, ii = outlines.length; i < ii; i++) { + var o = outlines[i]; + c.moveTo(o[0], o[1]); + for (var j = 2, jj = o.length; j < jj; j += 2) { + c.lineTo(o[j], o[j+1]); + } + } + c.fill(); + c.beginPath(); + c.restore(); + }; + + return drawOutline; +} + +var CanvasExtraState = (function CanvasExtraStateClosure() { + function CanvasExtraState(old) { + // Are soft masks and alpha values shapes or opacities? + this.alphaIsShape = false; + this.fontSize = 0; + this.fontSizeScale = 1; + this.textMatrix = IDENTITY_MATRIX; + this.textMatrixScale = 1; + this.fontMatrix = FONT_IDENTITY_MATRIX; + this.leading = 0; + // Current point (in user coordinates) + this.x = 0; + this.y = 0; + // Start of text line (in text coordinates) + this.lineX = 0; + this.lineY = 0; + // Character and word spacing + this.charSpacing = 0; + this.wordSpacing = 0; + this.textHScale = 1; + this.textRenderingMode = TextRenderingMode.FILL; + this.textRise = 0; + // Default fore and background colors + this.fillColor = '#000000'; + this.strokeColor = '#000000'; + this.patternFill = false; + // Note: fill alpha applies to all non-stroking operations + this.fillAlpha = 1; + this.strokeAlpha = 1; + this.lineWidth = 1; + this.activeSMask = null; // nonclonable field (see the save method below) + + this.old = old; + } + + CanvasExtraState.prototype = { + clone: function CanvasExtraState_clone() { + return Object.create(this); + }, + setCurrentPoint: function CanvasExtraState_setCurrentPoint(x, y) { + this.x = x; + this.y = y; + } + }; + return CanvasExtraState; +})(); + +var CanvasGraphics = (function CanvasGraphicsClosure() { + // Defines the time the executeOperatorList is going to be executing + // before it stops and shedules a continue of execution. + var EXECUTION_TIME = 15; + // Defines the number of steps before checking the execution time + var EXECUTION_STEPS = 10; + + function CanvasGraphics(canvasCtx, commonObjs, objs, imageLayer) { + this.ctx = canvasCtx; + this.current = new CanvasExtraState(); + this.stateStack = []; + this.pendingClip = null; + this.pendingEOFill = false; + this.res = null; + this.xobjs = null; + this.commonObjs = commonObjs; + this.objs = objs; + this.imageLayer = imageLayer; + this.groupStack = []; + this.processingType3 = null; + // Patterns are painted relative to the initial page/form transform, see pdf + // spec 8.7.2 NOTE 1. + this.baseTransform = null; + this.baseTransformStack = []; + this.groupLevel = 0; + this.smaskStack = []; + this.smaskCounter = 0; + this.tempSMask = null; + this.cachedCanvases = new CachedCanvases(); + if (canvasCtx) { + // NOTE: if mozCurrentTransform is polyfilled, then the current state of + // the transformation must already be set in canvasCtx._transformMatrix. + addContextCurrentTransform(canvasCtx); + } + this.cachedGetSinglePixelWidth = null; + } + + function putBinaryImageData(ctx, imgData) { + if (typeof ImageData !== 'undefined' && imgData instanceof ImageData) { + ctx.putImageData(imgData, 0, 0); + return; + } + + // Put the image data to the canvas in chunks, rather than putting the + // whole image at once. This saves JS memory, because the ImageData object + // is smaller. It also possibly saves C++ memory within the implementation + // of putImageData(). (E.g. in Firefox we make two short-lived copies of + // the data passed to putImageData()). |n| shouldn't be too small, however, + // because too many putImageData() calls will slow things down. + // + // Note: as written, if the last chunk is partial, the putImageData() call + // will (conceptually) put pixels past the bounds of the canvas. But + // that's ok; any such pixels are ignored. + + var height = imgData.height, width = imgData.width; + var partialChunkHeight = height % FULL_CHUNK_HEIGHT; + var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT; + var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1; + + var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT); + var srcPos = 0, destPos; + var src = imgData.data; + var dest = chunkImgData.data; + var i, j, thisChunkHeight, elemsInThisChunk; + + // There are multiple forms in which the pixel data can be passed, and + // imgData.kind tells us which one this is. + if (imgData.kind === ImageKind.GRAYSCALE_1BPP) { + // Grayscale, 1 bit per pixel (i.e. black-and-white). + var srcLength = src.byteLength; + var dest32 = PDFJS.hasCanvasTypedArrays ? new Uint32Array(dest.buffer) : + new Uint32ArrayView(dest); + var dest32DataLength = dest32.length; + var fullSrcDiff = (width + 7) >> 3; + var white = 0xFFFFFFFF; + var black = (PDFJS.isLittleEndian || !PDFJS.hasCanvasTypedArrays) ? + 0xFF000000 : 0x000000FF; + for (i = 0; i < totalChunks; i++) { + thisChunkHeight = + (i < fullChunks) ? FULL_CHUNK_HEIGHT : partialChunkHeight; + destPos = 0; + for (j = 0; j < thisChunkHeight; j++) { + var srcDiff = srcLength - srcPos; + var k = 0; + var kEnd = (srcDiff > fullSrcDiff) ? width : srcDiff * 8 - 7; + var kEndUnrolled = kEnd & ~7; + var mask = 0; + var srcByte = 0; + for (; k < kEndUnrolled; k += 8) { + srcByte = src[srcPos++]; + dest32[destPos++] = (srcByte & 128) ? white : black; + dest32[destPos++] = (srcByte & 64) ? white : black; + dest32[destPos++] = (srcByte & 32) ? white : black; + dest32[destPos++] = (srcByte & 16) ? white : black; + dest32[destPos++] = (srcByte & 8) ? white : black; + dest32[destPos++] = (srcByte & 4) ? white : black; + dest32[destPos++] = (srcByte & 2) ? white : black; + dest32[destPos++] = (srcByte & 1) ? white : black; + } + for (; k < kEnd; k++) { + if (mask === 0) { + srcByte = src[srcPos++]; + mask = 128; + } + + dest32[destPos++] = (srcByte & mask) ? white : black; + mask >>= 1; + } + } + // We ran out of input. Make all remaining pixels transparent. + while (destPos < dest32DataLength) { + dest32[destPos++] = 0; + } + + ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT); + } + } else if (imgData.kind === ImageKind.RGBA_32BPP) { + // RGBA, 32-bits per pixel. + + j = 0; + elemsInThisChunk = width * FULL_CHUNK_HEIGHT * 4; + for (i = 0; i < fullChunks; i++) { + dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk)); + srcPos += elemsInThisChunk; + + ctx.putImageData(chunkImgData, 0, j); + j += FULL_CHUNK_HEIGHT; + } + if (i < totalChunks) { + elemsInThisChunk = width * partialChunkHeight * 4; + dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk)); + ctx.putImageData(chunkImgData, 0, j); + } + + } else if (imgData.kind === ImageKind.RGB_24BPP) { + // RGB, 24-bits per pixel. + thisChunkHeight = FULL_CHUNK_HEIGHT; + elemsInThisChunk = width * thisChunkHeight; + for (i = 0; i < totalChunks; i++) { + if (i >= fullChunks) { + thisChunkHeight = partialChunkHeight; + elemsInThisChunk = width * thisChunkHeight; + } + + destPos = 0; + for (j = elemsInThisChunk; j--;) { + dest[destPos++] = src[srcPos++]; + dest[destPos++] = src[srcPos++]; + dest[destPos++] = src[srcPos++]; + dest[destPos++] = 255; + } + ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT); + } + } else { + error('bad image kind: ' + imgData.kind); + } + } + + function putBinaryImageMask(ctx, imgData) { + var height = imgData.height, width = imgData.width; + var partialChunkHeight = height % FULL_CHUNK_HEIGHT; + var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT; + var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1; + + var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT); + var srcPos = 0; + var src = imgData.data; + var dest = chunkImgData.data; + + for (var i = 0; i < totalChunks; i++) { + var thisChunkHeight = + (i < fullChunks) ? FULL_CHUNK_HEIGHT : partialChunkHeight; + + // Expand the mask so it can be used by the canvas. Any required + // inversion has already been handled. + var destPos = 3; // alpha component offset + for (var j = 0; j < thisChunkHeight; j++) { + var mask = 0; + for (var k = 0; k < width; k++) { + if (!mask) { + var elem = src[srcPos++]; + mask = 128; + } + dest[destPos] = (elem & mask) ? 0 : 255; + destPos += 4; + mask >>= 1; + } + } + ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT); + } + } + + function copyCtxState(sourceCtx, destCtx) { + var properties = ['strokeStyle', 'fillStyle', 'fillRule', 'globalAlpha', + 'lineWidth', 'lineCap', 'lineJoin', 'miterLimit', + 'globalCompositeOperation', 'font']; + for (var i = 0, ii = properties.length; i < ii; i++) { + var property = properties[i]; + if (sourceCtx[property] !== undefined) { + destCtx[property] = sourceCtx[property]; + } + } + if (sourceCtx.setLineDash !== undefined) { + destCtx.setLineDash(sourceCtx.getLineDash()); + destCtx.lineDashOffset = sourceCtx.lineDashOffset; + } else if (sourceCtx.mozDashOffset !== undefined) { + destCtx.mozDash = sourceCtx.mozDash; + destCtx.mozDashOffset = sourceCtx.mozDashOffset; + } + } + + function composeSMaskBackdrop(bytes, r0, g0, b0) { + var length = bytes.length; + for (var i = 3; i < length; i += 4) { + var alpha = bytes[i]; + if (alpha === 0) { + bytes[i - 3] = r0; + bytes[i - 2] = g0; + bytes[i - 1] = b0; + } else if (alpha < 255) { + var alpha_ = 255 - alpha; + bytes[i - 3] = (bytes[i - 3] * alpha + r0 * alpha_) >> 8; + bytes[i - 2] = (bytes[i - 2] * alpha + g0 * alpha_) >> 8; + bytes[i - 1] = (bytes[i - 1] * alpha + b0 * alpha_) >> 8; + } + } + } + + function composeSMaskAlpha(maskData, layerData, transferMap) { + var length = maskData.length; + var scale = 1 / 255; + for (var i = 3; i < length; i += 4) { + var alpha = transferMap ? transferMap[maskData[i]] : maskData[i]; + layerData[i] = (layerData[i] * alpha * scale) | 0; + } + } + + function composeSMaskLuminosity(maskData, layerData, transferMap) { + var length = maskData.length; + for (var i = 3; i < length; i += 4) { + var y = (maskData[i - 3] * 77) + // * 0.3 / 255 * 0x10000 + (maskData[i - 2] * 152) + // * 0.59 .... + (maskData[i - 1] * 28); // * 0.11 .... + layerData[i] = transferMap ? + (layerData[i] * transferMap[y >> 8]) >> 8 : + (layerData[i] * y) >> 16; + } + } + + function genericComposeSMask(maskCtx, layerCtx, width, height, + subtype, backdrop, transferMap) { + var hasBackdrop = !!backdrop; + var r0 = hasBackdrop ? backdrop[0] : 0; + var g0 = hasBackdrop ? backdrop[1] : 0; + var b0 = hasBackdrop ? backdrop[2] : 0; + + var composeFn; + if (subtype === 'Luminosity') { + composeFn = composeSMaskLuminosity; + } else { + composeFn = composeSMaskAlpha; + } + + // processing image in chunks to save memory + var PIXELS_TO_PROCESS = 1048576; + var chunkSize = Math.min(height, Math.ceil(PIXELS_TO_PROCESS / width)); + for (var row = 0; row < height; row += chunkSize) { + var chunkHeight = Math.min(chunkSize, height - row); + var maskData = maskCtx.getImageData(0, row, width, chunkHeight); + var layerData = layerCtx.getImageData(0, row, width, chunkHeight); + + if (hasBackdrop) { + composeSMaskBackdrop(maskData.data, r0, g0, b0); + } + composeFn(maskData.data, layerData.data, transferMap); + + maskCtx.putImageData(layerData, 0, row); + } + } + + function composeSMask(ctx, smask, layerCtx) { + var mask = smask.canvas; + var maskCtx = smask.context; + + ctx.setTransform(smask.scaleX, 0, 0, smask.scaleY, + smask.offsetX, smask.offsetY); + + var backdrop = smask.backdrop || null; + if (!smask.transferMap && WebGLUtils.isEnabled) { + var composed = WebGLUtils.composeSMask(layerCtx.canvas, mask, + {subtype: smask.subtype, backdrop: backdrop}); + ctx.setTransform(1, 0, 0, 1, 0, 0); + ctx.drawImage(composed, smask.offsetX, smask.offsetY); + return; + } + genericComposeSMask(maskCtx, layerCtx, mask.width, mask.height, + smask.subtype, backdrop, smask.transferMap); + ctx.drawImage(mask, 0, 0); + } + + var LINE_CAP_STYLES = ['butt', 'round', 'square']; + var LINE_JOIN_STYLES = ['miter', 'round', 'bevel']; + var NORMAL_CLIP = {}; + var EO_CLIP = {}; + + CanvasGraphics.prototype = { + + beginDrawing: function CanvasGraphics_beginDrawing(transform, viewport, + transparency) { + // For pdfs that use blend modes we have to clear the canvas else certain + // blend modes can look wrong since we'd be blending with a white + // backdrop. The problem with a transparent backdrop though is we then + // don't get sub pixel anti aliasing on text, creating temporary + // transparent canvas when we have blend modes. + var width = this.ctx.canvas.width; + var height = this.ctx.canvas.height; + + this.ctx.save(); + this.ctx.fillStyle = 'rgb(255, 255, 255)'; + this.ctx.fillRect(0, 0, width, height); + this.ctx.restore(); + + if (transparency) { + var transparentCanvas = this.cachedCanvases.getCanvas( + 'transparent', width, height, true); + this.compositeCtx = this.ctx; + this.transparentCanvas = transparentCanvas.canvas; + this.ctx = transparentCanvas.context; + this.ctx.save(); + // The transform can be applied before rendering, transferring it to + // the new canvas. + this.ctx.transform.apply(this.ctx, + this.compositeCtx.mozCurrentTransform); + } + + this.ctx.save(); + if (transform) { + this.ctx.transform.apply(this.ctx, transform); + } + this.ctx.transform.apply(this.ctx, viewport.transform); + + this.baseTransform = this.ctx.mozCurrentTransform.slice(); + + if (this.imageLayer) { + this.imageLayer.beginLayout(); + } + }, + + executeOperatorList: function CanvasGraphics_executeOperatorList( + operatorList, + executionStartIdx, continueCallback, + stepper) { + var argsArray = operatorList.argsArray; + var fnArray = operatorList.fnArray; + var i = executionStartIdx || 0; + var argsArrayLen = argsArray.length; + + // Sometimes the OperatorList to execute is empty. + if (argsArrayLen === i) { + return i; + } + + var chunkOperations = (argsArrayLen - i > EXECUTION_STEPS && + typeof continueCallback === 'function'); + var endTime = chunkOperations ? Date.now() + EXECUTION_TIME : 0; + var steps = 0; + + var commonObjs = this.commonObjs; + var objs = this.objs; + var fnId; + + while (true) { + if (stepper !== undefined && i === stepper.nextBreakPoint) { + stepper.breakIt(i, continueCallback); + return i; + } + + fnId = fnArray[i]; + + if (fnId !== OPS.dependency) { + this[fnId].apply(this, argsArray[i]); + } else { + var deps = argsArray[i]; + for (var n = 0, nn = deps.length; n < nn; n++) { + var depObjId = deps[n]; + var common = depObjId[0] === 'g' && depObjId[1] === '_'; + var objsPool = common ? commonObjs : objs; + + // If the promise isn't resolved yet, add the continueCallback + // to the promise and bail out. + if (!objsPool.isResolved(depObjId)) { + objsPool.get(depObjId, continueCallback); + return i; + } + } + } + + i++; + + // If the entire operatorList was executed, stop as were done. + if (i === argsArrayLen) { + return i; + } + + // If the execution took longer then a certain amount of time and + // `continueCallback` is specified, interrupt the execution. + if (chunkOperations && ++steps > EXECUTION_STEPS) { + if (Date.now() > endTime) { + continueCallback(); + return i; + } + steps = 0; + } + + // If the operatorList isn't executed completely yet OR the execution + // time was short enough, do another execution round. + } + }, + + endDrawing: function CanvasGraphics_endDrawing() { + this.ctx.restore(); + + if (this.transparentCanvas) { + this.ctx = this.compositeCtx; + this.ctx.drawImage(this.transparentCanvas, 0, 0); + this.transparentCanvas = null; + } + + this.cachedCanvases.clear(); + WebGLUtils.clear(); + + if (this.imageLayer) { + this.imageLayer.endLayout(); + } + }, + + // Graphics state + setLineWidth: function CanvasGraphics_setLineWidth(width) { + this.current.lineWidth = width; + this.ctx.lineWidth = width; + }, + setLineCap: function CanvasGraphics_setLineCap(style) { + this.ctx.lineCap = LINE_CAP_STYLES[style]; + }, + setLineJoin: function CanvasGraphics_setLineJoin(style) { + this.ctx.lineJoin = LINE_JOIN_STYLES[style]; + }, + setMiterLimit: function CanvasGraphics_setMiterLimit(limit) { + this.ctx.miterLimit = limit; + }, + setDash: function CanvasGraphics_setDash(dashArray, dashPhase) { + var ctx = this.ctx; + if (ctx.setLineDash !== undefined) { + ctx.setLineDash(dashArray); + ctx.lineDashOffset = dashPhase; + } else { + ctx.mozDash = dashArray; + ctx.mozDashOffset = dashPhase; + } + }, + setRenderingIntent: function CanvasGraphics_setRenderingIntent(intent) { + // Maybe if we one day fully support color spaces this will be important + // for now we can ignore. + // TODO set rendering intent? + }, + setFlatness: function CanvasGraphics_setFlatness(flatness) { + // There's no way to control this with canvas, but we can safely ignore. + // TODO set flatness? + }, + setGState: function CanvasGraphics_setGState(states) { + for (var i = 0, ii = states.length; i < ii; i++) { + var state = states[i]; + var key = state[0]; + var value = state[1]; + + switch (key) { + case 'LW': + this.setLineWidth(value); + break; + case 'LC': + this.setLineCap(value); + break; + case 'LJ': + this.setLineJoin(value); + break; + case 'ML': + this.setMiterLimit(value); + break; + case 'D': + this.setDash(value[0], value[1]); + break; + case 'RI': + this.setRenderingIntent(value); + break; + case 'FL': + this.setFlatness(value); + break; + case 'Font': + this.setFont(value[0], value[1]); + break; + case 'CA': + this.current.strokeAlpha = state[1]; + break; + case 'ca': + this.current.fillAlpha = state[1]; + this.ctx.globalAlpha = state[1]; + break; + case 'BM': + if (value && value.name && (value.name !== 'Normal')) { + var mode = value.name.replace(/([A-Z])/g, + function(c) { + return '-' + c.toLowerCase(); + } + ).substring(1); + this.ctx.globalCompositeOperation = mode; + if (this.ctx.globalCompositeOperation !== mode) { + warn('globalCompositeOperation "' + mode + + '" is not supported'); + } + } else { + this.ctx.globalCompositeOperation = 'source-over'; + } + break; + case 'SMask': + if (this.current.activeSMask) { + this.endSMaskGroup(); + } + this.current.activeSMask = value ? this.tempSMask : null; + if (this.current.activeSMask) { + this.beginSMaskGroup(); + } + this.tempSMask = null; + break; + } + } + }, + beginSMaskGroup: function CanvasGraphics_beginSMaskGroup() { + + var activeSMask = this.current.activeSMask; + var drawnWidth = activeSMask.canvas.width; + var drawnHeight = activeSMask.canvas.height; + var cacheId = 'smaskGroupAt' + this.groupLevel; + var scratchCanvas = this.cachedCanvases.getCanvas( + cacheId, drawnWidth, drawnHeight, true); + + var currentCtx = this.ctx; + var currentTransform = currentCtx.mozCurrentTransform; + this.ctx.save(); + + var groupCtx = scratchCanvas.context; + groupCtx.scale(1 / activeSMask.scaleX, 1 / activeSMask.scaleY); + groupCtx.translate(-activeSMask.offsetX, -activeSMask.offsetY); + groupCtx.transform.apply(groupCtx, currentTransform); + + copyCtxState(currentCtx, groupCtx); + this.ctx = groupCtx; + this.setGState([ + ['BM', 'Normal'], + ['ca', 1], + ['CA', 1] + ]); + this.groupStack.push(currentCtx); + this.groupLevel++; + }, + endSMaskGroup: function CanvasGraphics_endSMaskGroup() { + var groupCtx = this.ctx; + this.groupLevel--; + this.ctx = this.groupStack.pop(); + + composeSMask(this.ctx, this.current.activeSMask, groupCtx); + this.ctx.restore(); + copyCtxState(groupCtx, this.ctx); + }, + save: function CanvasGraphics_save() { + this.ctx.save(); + var old = this.current; + this.stateStack.push(old); + this.current = old.clone(); + this.current.activeSMask = null; + }, + restore: function CanvasGraphics_restore() { + if (this.stateStack.length !== 0) { + if (this.current.activeSMask !== null) { + this.endSMaskGroup(); + } + + this.current = this.stateStack.pop(); + this.ctx.restore(); + + // Ensure that the clipping path is reset (fixes issue6413.pdf). + this.pendingClip = null; + + this.cachedGetSinglePixelWidth = null; + } + }, + transform: function CanvasGraphics_transform(a, b, c, d, e, f) { + this.ctx.transform(a, b, c, d, e, f); + + this.cachedGetSinglePixelWidth = null; + }, + + // Path + constructPath: function CanvasGraphics_constructPath(ops, args) { + var ctx = this.ctx; + var current = this.current; + var x = current.x, y = current.y; + for (var i = 0, j = 0, ii = ops.length; i < ii; i++) { + switch (ops[i] | 0) { + case OPS.rectangle: + x = args[j++]; + y = args[j++]; + var width = args[j++]; + var height = args[j++]; + if (width === 0) { + width = this.getSinglePixelWidth(); + } + if (height === 0) { + height = this.getSinglePixelWidth(); + } + var xw = x + width; + var yh = y + height; + this.ctx.moveTo(x, y); + this.ctx.lineTo(xw, y); + this.ctx.lineTo(xw, yh); + this.ctx.lineTo(x, yh); + this.ctx.lineTo(x, y); + this.ctx.closePath(); + break; + case OPS.moveTo: + x = args[j++]; + y = args[j++]; + ctx.moveTo(x, y); + break; + case OPS.lineTo: + x = args[j++]; + y = args[j++]; + ctx.lineTo(x, y); + break; + case OPS.curveTo: + x = args[j + 4]; + y = args[j + 5]; + ctx.bezierCurveTo(args[j], args[j + 1], args[j + 2], args[j + 3], + x, y); + j += 6; + break; + case OPS.curveTo2: + ctx.bezierCurveTo(x, y, args[j], args[j + 1], + args[j + 2], args[j + 3]); + x = args[j + 2]; + y = args[j + 3]; + j += 4; + break; + case OPS.curveTo3: + x = args[j + 2]; + y = args[j + 3]; + ctx.bezierCurveTo(args[j], args[j + 1], x, y, x, y); + j += 4; + break; + case OPS.closePath: + ctx.closePath(); + break; + } + } + current.setCurrentPoint(x, y); + }, + closePath: function CanvasGraphics_closePath() { + this.ctx.closePath(); + }, + stroke: function CanvasGraphics_stroke(consumePath) { + consumePath = typeof consumePath !== 'undefined' ? consumePath : true; + var ctx = this.ctx; + var strokeColor = this.current.strokeColor; + // Prevent drawing too thin lines by enforcing a minimum line width. + ctx.lineWidth = Math.max(this.getSinglePixelWidth() * MIN_WIDTH_FACTOR, + this.current.lineWidth); + // For stroke we want to temporarily change the global alpha to the + // stroking alpha. + ctx.globalAlpha = this.current.strokeAlpha; + if (strokeColor && strokeColor.hasOwnProperty('type') && + strokeColor.type === 'Pattern') { + // for patterns, we transform to pattern space, calculate + // the pattern, call stroke, and restore to user space + ctx.save(); + ctx.strokeStyle = strokeColor.getPattern(ctx, this); + ctx.stroke(); + ctx.restore(); + } else { + ctx.stroke(); + } + if (consumePath) { + this.consumePath(); + } + // Restore the global alpha to the fill alpha + ctx.globalAlpha = this.current.fillAlpha; + }, + closeStroke: function CanvasGraphics_closeStroke() { + this.closePath(); + this.stroke(); + }, + fill: function CanvasGraphics_fill(consumePath) { + consumePath = typeof consumePath !== 'undefined' ? consumePath : true; + var ctx = this.ctx; + var fillColor = this.current.fillColor; + var isPatternFill = this.current.patternFill; + var needRestore = false; + + if (isPatternFill) { + ctx.save(); + if (this.baseTransform) { + ctx.setTransform.apply(ctx, this.baseTransform); + } + ctx.fillStyle = fillColor.getPattern(ctx, this); + needRestore = true; + } + + if (this.pendingEOFill) { + if (ctx.mozFillRule !== undefined) { + ctx.mozFillRule = 'evenodd'; + ctx.fill(); + ctx.mozFillRule = 'nonzero'; + } else { + ctx.fill('evenodd'); + } + this.pendingEOFill = false; + } else { + ctx.fill(); + } + + if (needRestore) { + ctx.restore(); + } + if (consumePath) { + this.consumePath(); + } + }, + eoFill: function CanvasGraphics_eoFill() { + this.pendingEOFill = true; + this.fill(); + }, + fillStroke: function CanvasGraphics_fillStroke() { + this.fill(false); + this.stroke(false); + + this.consumePath(); + }, + eoFillStroke: function CanvasGraphics_eoFillStroke() { + this.pendingEOFill = true; + this.fillStroke(); + }, + closeFillStroke: function CanvasGraphics_closeFillStroke() { + this.closePath(); + this.fillStroke(); + }, + closeEOFillStroke: function CanvasGraphics_closeEOFillStroke() { + this.pendingEOFill = true; + this.closePath(); + this.fillStroke(); + }, + endPath: function CanvasGraphics_endPath() { + this.consumePath(); + }, + + // Clipping + clip: function CanvasGraphics_clip() { + this.pendingClip = NORMAL_CLIP; + }, + eoClip: function CanvasGraphics_eoClip() { + this.pendingClip = EO_CLIP; + }, + + // Text + beginText: function CanvasGraphics_beginText() { + this.current.textMatrix = IDENTITY_MATRIX; + this.current.textMatrixScale = 1; + this.current.x = this.current.lineX = 0; + this.current.y = this.current.lineY = 0; + }, + endText: function CanvasGraphics_endText() { + var paths = this.pendingTextPaths; + var ctx = this.ctx; + if (paths === undefined) { + ctx.beginPath(); + return; + } + + ctx.save(); + ctx.beginPath(); + for (var i = 0; i < paths.length; i++) { + var path = paths[i]; + ctx.setTransform.apply(ctx, path.transform); + ctx.translate(path.x, path.y); + path.addToPath(ctx, path.fontSize); + } + ctx.restore(); + ctx.clip(); + ctx.beginPath(); + delete this.pendingTextPaths; + }, + setCharSpacing: function CanvasGraphics_setCharSpacing(spacing) { + this.current.charSpacing = spacing; + }, + setWordSpacing: function CanvasGraphics_setWordSpacing(spacing) { + this.current.wordSpacing = spacing; + }, + setHScale: function CanvasGraphics_setHScale(scale) { + this.current.textHScale = scale / 100; + }, + setLeading: function CanvasGraphics_setLeading(leading) { + this.current.leading = -leading; + }, + setFont: function CanvasGraphics_setFont(fontRefName, size) { + var fontObj = this.commonObjs.get(fontRefName); + var current = this.current; + + if (!fontObj) { + error('Can\'t find font for ' + fontRefName); + } + + current.fontMatrix = (fontObj.fontMatrix ? + fontObj.fontMatrix : FONT_IDENTITY_MATRIX); + + // A valid matrix needs all main diagonal elements to be non-zero + // This also ensures we bypass FF bugzilla bug #719844. + if (current.fontMatrix[0] === 0 || + current.fontMatrix[3] === 0) { + warn('Invalid font matrix for font ' + fontRefName); + } + + // The spec for Tf (setFont) says that 'size' specifies the font 'scale', + // and in some docs this can be negative (inverted x-y axes). + if (size < 0) { + size = -size; + current.fontDirection = -1; + } else { + current.fontDirection = 1; + } + + this.current.font = fontObj; + this.current.fontSize = size; + + if (fontObj.isType3Font) { + return; // we don't need ctx.font for Type3 fonts + } + + var name = fontObj.loadedName || 'sans-serif'; + var bold = fontObj.black ? (fontObj.bold ? '900' : 'bold') : + (fontObj.bold ? 'bold' : 'normal'); + + var italic = fontObj.italic ? 'italic' : 'normal'; + var typeface = '"' + name + '", ' + fontObj.fallbackName; + + // Some font backends cannot handle fonts below certain size. + // Keeping the font at minimal size and using the fontSizeScale to change + // the current transformation matrix before the fillText/strokeText. + // See https://bugzilla.mozilla.org/show_bug.cgi?id=726227 + var browserFontSize = size < MIN_FONT_SIZE ? MIN_FONT_SIZE : + size > MAX_FONT_SIZE ? MAX_FONT_SIZE : size; + this.current.fontSizeScale = size / browserFontSize; + + var rule = italic + ' ' + bold + ' ' + browserFontSize + 'px ' + typeface; + this.ctx.font = rule; + }, + setTextRenderingMode: function CanvasGraphics_setTextRenderingMode(mode) { + this.current.textRenderingMode = mode; + }, + setTextRise: function CanvasGraphics_setTextRise(rise) { + this.current.textRise = rise; + }, + moveText: function CanvasGraphics_moveText(x, y) { + this.current.x = this.current.lineX += x; + this.current.y = this.current.lineY += y; + }, + setLeadingMoveText: function CanvasGraphics_setLeadingMoveText(x, y) { + this.setLeading(-y); + this.moveText(x, y); + }, + setTextMatrix: function CanvasGraphics_setTextMatrix(a, b, c, d, e, f) { + this.current.textMatrix = [a, b, c, d, e, f]; + this.current.textMatrixScale = Math.sqrt(a * a + b * b); + + this.current.x = this.current.lineX = 0; + this.current.y = this.current.lineY = 0; + }, + nextLine: function CanvasGraphics_nextLine() { + this.moveText(0, this.current.leading); + }, + + paintChar: function CanvasGraphics_paintChar(character, x, y) { + var ctx = this.ctx; + var current = this.current; + var font = current.font; + var textRenderingMode = current.textRenderingMode; + var fontSize = current.fontSize / current.fontSizeScale; + var fillStrokeMode = textRenderingMode & + TextRenderingMode.FILL_STROKE_MASK; + var isAddToPathSet = !!(textRenderingMode & + TextRenderingMode.ADD_TO_PATH_FLAG); + + var addToPath; + if (font.disableFontFace || isAddToPathSet) { + addToPath = font.getPathGenerator(this.commonObjs, character); + } + + if (font.disableFontFace) { + ctx.save(); + ctx.translate(x, y); + ctx.beginPath(); + addToPath(ctx, fontSize); + if (fillStrokeMode === TextRenderingMode.FILL || + fillStrokeMode === TextRenderingMode.FILL_STROKE) { + ctx.fill(); + } + if (fillStrokeMode === TextRenderingMode.STROKE || + fillStrokeMode === TextRenderingMode.FILL_STROKE) { + ctx.stroke(); + } + ctx.restore(); + } else { + if (fillStrokeMode === TextRenderingMode.FILL || + fillStrokeMode === TextRenderingMode.FILL_STROKE) { + ctx.fillText(character, x, y); + } + if (fillStrokeMode === TextRenderingMode.STROKE || + fillStrokeMode === TextRenderingMode.FILL_STROKE) { + ctx.strokeText(character, x, y); + } + } + + if (isAddToPathSet) { + var paths = this.pendingTextPaths || (this.pendingTextPaths = []); + paths.push({ + transform: ctx.mozCurrentTransform, + x: x, + y: y, + fontSize: fontSize, + addToPath: addToPath + }); + } + }, + + get isFontSubpixelAAEnabled() { + // Checks if anti-aliasing is enabled when scaled text is painted. + // On Windows GDI scaled fonts looks bad. + var ctx = document.createElement('canvas').getContext('2d'); + ctx.scale(1.5, 1); + ctx.fillText('I', 0, 10); + var data = ctx.getImageData(0, 0, 10, 10).data; + var enabled = false; + for (var i = 3; i < data.length; i += 4) { + if (data[i] > 0 && data[i] < 255) { + enabled = true; + break; + } + } + return shadow(this, 'isFontSubpixelAAEnabled', enabled); + }, + + showText: function CanvasGraphics_showText(glyphs) { + var current = this.current; + var font = current.font; + if (font.isType3Font) { + return this.showType3Text(glyphs); + } + + var fontSize = current.fontSize; + if (fontSize === 0) { + return; + } + + var ctx = this.ctx; + var fontSizeScale = current.fontSizeScale; + var charSpacing = current.charSpacing; + var wordSpacing = current.wordSpacing; + var fontDirection = current.fontDirection; + var textHScale = current.textHScale * fontDirection; + var glyphsLength = glyphs.length; + var vertical = font.vertical; + var spacingDir = vertical ? 1 : -1; + var defaultVMetrics = font.defaultVMetrics; + var widthAdvanceScale = fontSize * current.fontMatrix[0]; + + var simpleFillText = + current.textRenderingMode === TextRenderingMode.FILL && + !font.disableFontFace; + + ctx.save(); + ctx.transform.apply(ctx, current.textMatrix); + ctx.translate(current.x, current.y + current.textRise); + + if (fontDirection > 0) { + ctx.scale(textHScale, -1); + } else { + ctx.scale(textHScale, 1); + } + + var lineWidth = current.lineWidth; + var scale = current.textMatrixScale; + if (scale === 0 || lineWidth === 0) { + var fillStrokeMode = current.textRenderingMode & + TextRenderingMode.FILL_STROKE_MASK; + if (fillStrokeMode === TextRenderingMode.STROKE || + fillStrokeMode === TextRenderingMode.FILL_STROKE) { + this.cachedGetSinglePixelWidth = null; + lineWidth = this.getSinglePixelWidth() * MIN_WIDTH_FACTOR; + } + } else { + lineWidth /= scale; + } + + if (fontSizeScale !== 1.0) { + ctx.scale(fontSizeScale, fontSizeScale); + lineWidth /= fontSizeScale; + } + + ctx.lineWidth = lineWidth; + + var x = 0, i; + for (i = 0; i < glyphsLength; ++i) { + var glyph = glyphs[i]; + if (isNum(glyph)) { + x += spacingDir * glyph * fontSize / 1000; + continue; + } + + var restoreNeeded = false; + var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing; + var character = glyph.fontChar; + var accent = glyph.accent; + var scaledX, scaledY, scaledAccentX, scaledAccentY; + var width = glyph.width; + if (vertical) { + var vmetric, vx, vy; + vmetric = glyph.vmetric || defaultVMetrics; + vx = glyph.vmetric ? vmetric[1] : width * 0.5; + vx = -vx * widthAdvanceScale; + vy = vmetric[2] * widthAdvanceScale; + + width = vmetric ? -vmetric[0] : width; + scaledX = vx / fontSizeScale; + scaledY = (x + vy) / fontSizeScale; + } else { + scaledX = x / fontSizeScale; + scaledY = 0; + } + + if (font.remeasure && width > 0) { + // Some standard fonts may not have the exact width: rescale per + // character if measured width is greater than expected glyph width + // and subpixel-aa is enabled, otherwise just center the glyph. + var measuredWidth = ctx.measureText(character).width * 1000 / + fontSize * fontSizeScale; + if (width < measuredWidth && this.isFontSubpixelAAEnabled) { + var characterScaleX = width / measuredWidth; + restoreNeeded = true; + ctx.save(); + ctx.scale(characterScaleX, 1); + scaledX /= characterScaleX; + } else if (width !== measuredWidth) { + scaledX += (width - measuredWidth) / 2000 * + fontSize / fontSizeScale; + } + } + + if (simpleFillText && !accent) { + // common case + ctx.fillText(character, scaledX, scaledY); + } else { + this.paintChar(character, scaledX, scaledY); + if (accent) { + scaledAccentX = scaledX + accent.offset.x / fontSizeScale; + scaledAccentY = scaledY - accent.offset.y / fontSizeScale; + this.paintChar(accent.fontChar, scaledAccentX, scaledAccentY); + } + } + + var charWidth = width * widthAdvanceScale + spacing * fontDirection; + x += charWidth; + + if (restoreNeeded) { + ctx.restore(); + } + } + if (vertical) { + current.y -= x * textHScale; + } else { + current.x += x * textHScale; + } + ctx.restore(); + }, + + showType3Text: function CanvasGraphics_showType3Text(glyphs) { + // Type3 fonts - each glyph is a "mini-PDF" + var ctx = this.ctx; + var current = this.current; + var font = current.font; + var fontSize = current.fontSize; + var fontDirection = current.fontDirection; + var spacingDir = font.vertical ? 1 : -1; + var charSpacing = current.charSpacing; + var wordSpacing = current.wordSpacing; + var textHScale = current.textHScale * fontDirection; + var fontMatrix = current.fontMatrix || FONT_IDENTITY_MATRIX; + var glyphsLength = glyphs.length; + var isTextInvisible = + current.textRenderingMode === TextRenderingMode.INVISIBLE; + var i, glyph, width, spacingLength; + + if (isTextInvisible || fontSize === 0) { + return; + } + this.cachedGetSinglePixelWidth = null; + + ctx.save(); + ctx.transform.apply(ctx, current.textMatrix); + ctx.translate(current.x, current.y); + + ctx.scale(textHScale, fontDirection); + + for (i = 0; i < glyphsLength; ++i) { + glyph = glyphs[i]; + if (isNum(glyph)) { + spacingLength = spacingDir * glyph * fontSize / 1000; + this.ctx.translate(spacingLength, 0); + current.x += spacingLength * textHScale; + continue; + } + + var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing; + var operatorList = font.charProcOperatorList[glyph.operatorListId]; + if (!operatorList) { + warn('Type3 character \"' + glyph.operatorListId + + '\" is not available'); + continue; + } + this.processingType3 = glyph; + this.save(); + ctx.scale(fontSize, fontSize); + ctx.transform.apply(ctx, fontMatrix); + this.executeOperatorList(operatorList); + this.restore(); + + var transformed = Util.applyTransform([glyph.width, 0], fontMatrix); + width = transformed[0] * fontSize + spacing; + + ctx.translate(width, 0); + current.x += width * textHScale; + } + ctx.restore(); + this.processingType3 = null; + }, + + // Type3 fonts + setCharWidth: function CanvasGraphics_setCharWidth(xWidth, yWidth) { + // We can safely ignore this since the width should be the same + // as the width in the Widths array. + }, + setCharWidthAndBounds: function CanvasGraphics_setCharWidthAndBounds(xWidth, + yWidth, + llx, + lly, + urx, + ury) { + // TODO According to the spec we're also suppose to ignore any operators + // that set color or include images while processing this type3 font. + this.ctx.rect(llx, lly, urx - llx, ury - lly); + this.clip(); + this.endPath(); + }, + + // Color + getColorN_Pattern: function CanvasGraphics_getColorN_Pattern(IR) { + var pattern; + if (IR[0] === 'TilingPattern') { + var color = IR[1]; + var baseTransform = this.baseTransform || + this.ctx.mozCurrentTransform.slice(); + var self = this; + var canvasGraphicsFactory = { + createCanvasGraphics: function (ctx) { + return new CanvasGraphics(ctx, self.commonObjs, self.objs); + } + }; + pattern = new TilingPattern(IR, color, this.ctx, canvasGraphicsFactory, + baseTransform); + } else { + pattern = getShadingPatternFromIR(IR); + } + return pattern; + }, + setStrokeColorN: function CanvasGraphics_setStrokeColorN(/*...*/) { + this.current.strokeColor = this.getColorN_Pattern(arguments); + }, + setFillColorN: function CanvasGraphics_setFillColorN(/*...*/) { + this.current.fillColor = this.getColorN_Pattern(arguments); + this.current.patternFill = true; + }, + setStrokeRGBColor: function CanvasGraphics_setStrokeRGBColor(r, g, b) { + var color = Util.makeCssRgb(r, g, b); + this.ctx.strokeStyle = color; + this.current.strokeColor = color; + }, + setFillRGBColor: function CanvasGraphics_setFillRGBColor(r, g, b) { + var color = Util.makeCssRgb(r, g, b); + this.ctx.fillStyle = color; + this.current.fillColor = color; + this.current.patternFill = false; + }, + + shadingFill: function CanvasGraphics_shadingFill(patternIR) { + var ctx = this.ctx; + + this.save(); + var pattern = getShadingPatternFromIR(patternIR); + ctx.fillStyle = pattern.getPattern(ctx, this, true); + + var inv = ctx.mozCurrentTransformInverse; + if (inv) { + var canvas = ctx.canvas; + var width = canvas.width; + var height = canvas.height; + + var bl = Util.applyTransform([0, 0], inv); + var br = Util.applyTransform([0, height], inv); + var ul = Util.applyTransform([width, 0], inv); + var ur = Util.applyTransform([width, height], inv); + + var x0 = Math.min(bl[0], br[0], ul[0], ur[0]); + var y0 = Math.min(bl[1], br[1], ul[1], ur[1]); + var x1 = Math.max(bl[0], br[0], ul[0], ur[0]); + var y1 = Math.max(bl[1], br[1], ul[1], ur[1]); + + this.ctx.fillRect(x0, y0, x1 - x0, y1 - y0); + } else { + // HACK to draw the gradient onto an infinite rectangle. + // PDF gradients are drawn across the entire image while + // Canvas only allows gradients to be drawn in a rectangle + // The following bug should allow us to remove this. + // https://bugzilla.mozilla.org/show_bug.cgi?id=664884 + + this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10); + } + + this.restore(); + }, + + // Images + beginInlineImage: function CanvasGraphics_beginInlineImage() { + error('Should not call beginInlineImage'); + }, + beginImageData: function CanvasGraphics_beginImageData() { + error('Should not call beginImageData'); + }, + + paintFormXObjectBegin: function CanvasGraphics_paintFormXObjectBegin(matrix, + bbox) { + this.save(); + this.baseTransformStack.push(this.baseTransform); + + if (isArray(matrix) && 6 === matrix.length) { + this.transform.apply(this, matrix); + } + + this.baseTransform = this.ctx.mozCurrentTransform; + + if (isArray(bbox) && 4 === bbox.length) { + var width = bbox[2] - bbox[0]; + var height = bbox[3] - bbox[1]; + this.ctx.rect(bbox[0], bbox[1], width, height); + this.clip(); + this.endPath(); + } + }, + + paintFormXObjectEnd: function CanvasGraphics_paintFormXObjectEnd() { + this.restore(); + this.baseTransform = this.baseTransformStack.pop(); + }, + + beginGroup: function CanvasGraphics_beginGroup(group) { + this.save(); + var currentCtx = this.ctx; + // TODO non-isolated groups - according to Rik at adobe non-isolated + // group results aren't usually that different and they even have tools + // that ignore this setting. Notes from Rik on implmenting: + // - When you encounter an transparency group, create a new canvas with + // the dimensions of the bbox + // - copy the content from the previous canvas to the new canvas + // - draw as usual + // - remove the backdrop alpha: + // alphaNew = 1 - (1 - alpha)/(1 - alphaBackdrop) with 'alpha' the alpha + // value of your transparency group and 'alphaBackdrop' the alpha of the + // backdrop + // - remove background color: + // colorNew = color - alphaNew *colorBackdrop /(1 - alphaNew) + if (!group.isolated) { + info('TODO: Support non-isolated groups.'); + } + + // TODO knockout - supposedly possible with the clever use of compositing + // modes. + if (group.knockout) { + warn('Knockout groups not supported.'); + } + + var currentTransform = currentCtx.mozCurrentTransform; + if (group.matrix) { + currentCtx.transform.apply(currentCtx, group.matrix); + } + assert(group.bbox, 'Bounding box is required.'); + + // Based on the current transform figure out how big the bounding box + // will actually be. + var bounds = Util.getAxialAlignedBoundingBox( + group.bbox, + currentCtx.mozCurrentTransform); + // Clip the bounding box to the current canvas. + var canvasBounds = [0, + 0, + currentCtx.canvas.width, + currentCtx.canvas.height]; + bounds = Util.intersect(bounds, canvasBounds) || [0, 0, 0, 0]; + // Use ceil in case we're between sizes so we don't create canvas that is + // too small and make the canvas at least 1x1 pixels. + var offsetX = Math.floor(bounds[0]); + var offsetY = Math.floor(bounds[1]); + var drawnWidth = Math.max(Math.ceil(bounds[2]) - offsetX, 1); + var drawnHeight = Math.max(Math.ceil(bounds[3]) - offsetY, 1); + var scaleX = 1, scaleY = 1; + if (drawnWidth > MAX_GROUP_SIZE) { + scaleX = drawnWidth / MAX_GROUP_SIZE; + drawnWidth = MAX_GROUP_SIZE; + } + if (drawnHeight > MAX_GROUP_SIZE) { + scaleY = drawnHeight / MAX_GROUP_SIZE; + drawnHeight = MAX_GROUP_SIZE; + } + + var cacheId = 'groupAt' + this.groupLevel; + if (group.smask) { + // Using two cache entries is case if masks are used one after another. + cacheId += '_smask_' + ((this.smaskCounter++) % 2); + } + var scratchCanvas = this.cachedCanvases.getCanvas( + cacheId, drawnWidth, drawnHeight, true); + var groupCtx = scratchCanvas.context; + + // Since we created a new canvas that is just the size of the bounding box + // we have to translate the group ctx. + groupCtx.scale(1 / scaleX, 1 / scaleY); + groupCtx.translate(-offsetX, -offsetY); + groupCtx.transform.apply(groupCtx, currentTransform); + + if (group.smask) { + // Saving state and cached mask to be used in setGState. + this.smaskStack.push({ + canvas: scratchCanvas.canvas, + context: groupCtx, + offsetX: offsetX, + offsetY: offsetY, + scaleX: scaleX, + scaleY: scaleY, + subtype: group.smask.subtype, + backdrop: group.smask.backdrop, + transferMap: group.smask.transferMap || null + }); + } else { + // Setup the current ctx so when the group is popped we draw it at the + // right location. + currentCtx.setTransform(1, 0, 0, 1, 0, 0); + currentCtx.translate(offsetX, offsetY); + currentCtx.scale(scaleX, scaleY); + } + // The transparency group inherits all off the current graphics state + // except the blend mode, soft mask, and alpha constants. + copyCtxState(currentCtx, groupCtx); + this.ctx = groupCtx; + this.setGState([ + ['BM', 'Normal'], + ['ca', 1], + ['CA', 1] + ]); + this.groupStack.push(currentCtx); + this.groupLevel++; + }, + + endGroup: function CanvasGraphics_endGroup(group) { + this.groupLevel--; + var groupCtx = this.ctx; + this.ctx = this.groupStack.pop(); + // Turn off image smoothing to avoid sub pixel interpolation which can + // look kind of blurry for some pdfs. + if (this.ctx.imageSmoothingEnabled !== undefined) { + this.ctx.imageSmoothingEnabled = false; + } else { + this.ctx.mozImageSmoothingEnabled = false; + } + if (group.smask) { + this.tempSMask = this.smaskStack.pop(); + } else { + this.ctx.drawImage(groupCtx.canvas, 0, 0); + } + this.restore(); + }, + + beginAnnotations: function CanvasGraphics_beginAnnotations() { + this.save(); + this.current = new CanvasExtraState(); + }, + + endAnnotations: function CanvasGraphics_endAnnotations() { + this.restore(); + }, + + beginAnnotation: function CanvasGraphics_beginAnnotation(rect, transform, + matrix) { + this.save(); + + if (isArray(rect) && 4 === rect.length) { + var width = rect[2] - rect[0]; + var height = rect[3] - rect[1]; + this.ctx.rect(rect[0], rect[1], width, height); + this.clip(); + this.endPath(); + } + + this.transform.apply(this, transform); + this.transform.apply(this, matrix); + }, + + endAnnotation: function CanvasGraphics_endAnnotation() { + this.restore(); + }, + + paintJpegXObject: function CanvasGraphics_paintJpegXObject(objId, w, h) { + var domImage = this.objs.get(objId); + if (!domImage) { + warn('Dependent image isn\'t ready yet'); + return; + } + + this.save(); + + var ctx = this.ctx; + // scale the image to the unit square + ctx.scale(1 / w, -1 / h); + + ctx.drawImage(domImage, 0, 0, domImage.width, domImage.height, + 0, -h, w, h); + if (this.imageLayer) { + var currentTransform = ctx.mozCurrentTransformInverse; + var position = this.getCanvasPosition(0, 0); + this.imageLayer.appendImage({ + objId: objId, + left: position[0], + top: position[1], + width: w / currentTransform[0], + height: h / currentTransform[3] + }); + } + this.restore(); + }, + + paintImageMaskXObject: function CanvasGraphics_paintImageMaskXObject(img) { + var ctx = this.ctx; + var width = img.width, height = img.height; + var fillColor = this.current.fillColor; + var isPatternFill = this.current.patternFill; + + var glyph = this.processingType3; + + if (COMPILE_TYPE3_GLYPHS && glyph && glyph.compiled === undefined) { + if (width <= MAX_SIZE_TO_COMPILE && height <= MAX_SIZE_TO_COMPILE) { + glyph.compiled = + compileType3Glyph({data: img.data, width: width, height: height}); + } else { + glyph.compiled = null; + } + } + + if (glyph && glyph.compiled) { + glyph.compiled(ctx); + return; + } + + var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', + width, height); + var maskCtx = maskCanvas.context; + maskCtx.save(); + + putBinaryImageMask(maskCtx, img); + + maskCtx.globalCompositeOperation = 'source-in'; + + maskCtx.fillStyle = isPatternFill ? + fillColor.getPattern(maskCtx, this) : fillColor; + maskCtx.fillRect(0, 0, width, height); + + maskCtx.restore(); + + this.paintInlineImageXObject(maskCanvas.canvas); + }, + + paintImageMaskXObjectRepeat: + function CanvasGraphics_paintImageMaskXObjectRepeat(imgData, scaleX, + scaleY, positions) { + var width = imgData.width; + var height = imgData.height; + var fillColor = this.current.fillColor; + var isPatternFill = this.current.patternFill; + + var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', + width, height); + var maskCtx = maskCanvas.context; + maskCtx.save(); + + putBinaryImageMask(maskCtx, imgData); + + maskCtx.globalCompositeOperation = 'source-in'; + + maskCtx.fillStyle = isPatternFill ? + fillColor.getPattern(maskCtx, this) : fillColor; + maskCtx.fillRect(0, 0, width, height); + + maskCtx.restore(); + + var ctx = this.ctx; + for (var i = 0, ii = positions.length; i < ii; i += 2) { + ctx.save(); + ctx.transform(scaleX, 0, 0, scaleY, positions[i], positions[i + 1]); + ctx.scale(1, -1); + ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, + 0, -1, 1, 1); + ctx.restore(); + } + }, + + paintImageMaskXObjectGroup: + function CanvasGraphics_paintImageMaskXObjectGroup(images) { + var ctx = this.ctx; + + var fillColor = this.current.fillColor; + var isPatternFill = this.current.patternFill; + for (var i = 0, ii = images.length; i < ii; i++) { + var image = images[i]; + var width = image.width, height = image.height; + + var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', + width, height); + var maskCtx = maskCanvas.context; + maskCtx.save(); + + putBinaryImageMask(maskCtx, image); + + maskCtx.globalCompositeOperation = 'source-in'; + + maskCtx.fillStyle = isPatternFill ? + fillColor.getPattern(maskCtx, this) : fillColor; + maskCtx.fillRect(0, 0, width, height); + + maskCtx.restore(); + + ctx.save(); + ctx.transform.apply(ctx, image.transform); + ctx.scale(1, -1); + ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, + 0, -1, 1, 1); + ctx.restore(); + } + }, + + paintImageXObject: function CanvasGraphics_paintImageXObject(objId) { + var imgData = this.objs.get(objId); + if (!imgData) { + warn('Dependent image isn\'t ready yet'); + return; + } + + this.paintInlineImageXObject(imgData); + }, + + paintImageXObjectRepeat: + function CanvasGraphics_paintImageXObjectRepeat(objId, scaleX, scaleY, + positions) { + var imgData = this.objs.get(objId); + if (!imgData) { + warn('Dependent image isn\'t ready yet'); + return; + } + + var width = imgData.width; + var height = imgData.height; + var map = []; + for (var i = 0, ii = positions.length; i < ii; i += 2) { + map.push({transform: [scaleX, 0, 0, scaleY, positions[i], + positions[i + 1]], x: 0, y: 0, w: width, h: height}); + } + this.paintInlineImageXObjectGroup(imgData, map); + }, + + paintInlineImageXObject: + function CanvasGraphics_paintInlineImageXObject(imgData) { + var width = imgData.width; + var height = imgData.height; + var ctx = this.ctx; + + this.save(); + // scale the image to the unit square + ctx.scale(1 / width, -1 / height); + + var currentTransform = ctx.mozCurrentTransformInverse; + var a = currentTransform[0], b = currentTransform[1]; + var widthScale = Math.max(Math.sqrt(a * a + b * b), 1); + var c = currentTransform[2], d = currentTransform[3]; + var heightScale = Math.max(Math.sqrt(c * c + d * d), 1); + + var imgToPaint, tmpCanvas; + // instanceof HTMLElement does not work in jsdom node.js module + if (imgData instanceof HTMLElement || !imgData.data) { + imgToPaint = imgData; + } else { + tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', + width, height); + var tmpCtx = tmpCanvas.context; + putBinaryImageData(tmpCtx, imgData); + imgToPaint = tmpCanvas.canvas; + } + + var paintWidth = width, paintHeight = height; + var tmpCanvasId = 'prescale1'; + // Vertial or horizontal scaling shall not be more than 2 to not loose the + // pixels during drawImage operation, painting on the temporary canvas(es) + // that are twice smaller in size + while ((widthScale > 2 && paintWidth > 1) || + (heightScale > 2 && paintHeight > 1)) { + var newWidth = paintWidth, newHeight = paintHeight; + if (widthScale > 2 && paintWidth > 1) { + newWidth = Math.ceil(paintWidth / 2); + widthScale /= paintWidth / newWidth; + } + if (heightScale > 2 && paintHeight > 1) { + newHeight = Math.ceil(paintHeight / 2); + heightScale /= paintHeight / newHeight; + } + tmpCanvas = this.cachedCanvases.getCanvas(tmpCanvasId, + newWidth, newHeight); + tmpCtx = tmpCanvas.context; + tmpCtx.clearRect(0, 0, newWidth, newHeight); + tmpCtx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, + 0, 0, newWidth, newHeight); + imgToPaint = tmpCanvas.canvas; + paintWidth = newWidth; + paintHeight = newHeight; + tmpCanvasId = tmpCanvasId === 'prescale1' ? 'prescale2' : 'prescale1'; + } + ctx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, + 0, -height, width, height); + + if (this.imageLayer) { + var position = this.getCanvasPosition(0, -height); + this.imageLayer.appendImage({ + imgData: imgData, + left: position[0], + top: position[1], + width: width / currentTransform[0], + height: height / currentTransform[3] + }); + } + this.restore(); + }, + + paintInlineImageXObjectGroup: + function CanvasGraphics_paintInlineImageXObjectGroup(imgData, map) { + var ctx = this.ctx; + var w = imgData.width; + var h = imgData.height; + + var tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', w, h); + var tmpCtx = tmpCanvas.context; + putBinaryImageData(tmpCtx, imgData); + + for (var i = 0, ii = map.length; i < ii; i++) { + var entry = map[i]; + ctx.save(); + ctx.transform.apply(ctx, entry.transform); + ctx.scale(1, -1); + ctx.drawImage(tmpCanvas.canvas, entry.x, entry.y, entry.w, entry.h, + 0, -1, 1, 1); + if (this.imageLayer) { + var position = this.getCanvasPosition(entry.x, entry.y); + this.imageLayer.appendImage({ + imgData: imgData, + left: position[0], + top: position[1], + width: w, + height: h + }); + } + ctx.restore(); + } + }, + + paintSolidColorImageMask: + function CanvasGraphics_paintSolidColorImageMask() { + this.ctx.fillRect(0, 0, 1, 1); + }, + + paintXObject: function CanvasGraphics_paintXObject() { + warn('Unsupported \'paintXObject\' command.'); + }, + + // Marked content + + markPoint: function CanvasGraphics_markPoint(tag) { + // TODO Marked content. + }, + markPointProps: function CanvasGraphics_markPointProps(tag, properties) { + // TODO Marked content. + }, + beginMarkedContent: function CanvasGraphics_beginMarkedContent(tag) { + // TODO Marked content. + }, + beginMarkedContentProps: function CanvasGraphics_beginMarkedContentProps( + tag, properties) { + // TODO Marked content. + }, + endMarkedContent: function CanvasGraphics_endMarkedContent() { + // TODO Marked content. + }, + + // Compatibility + + beginCompat: function CanvasGraphics_beginCompat() { + // TODO ignore undefined operators (should we do that anyway?) + }, + endCompat: function CanvasGraphics_endCompat() { + // TODO stop ignoring undefined operators + }, + + // Helper functions + + consumePath: function CanvasGraphics_consumePath() { + var ctx = this.ctx; + if (this.pendingClip) { + if (this.pendingClip === EO_CLIP) { + if (ctx.mozFillRule !== undefined) { + ctx.mozFillRule = 'evenodd'; + ctx.clip(); + ctx.mozFillRule = 'nonzero'; + } else { + ctx.clip('evenodd'); + } + } else { + ctx.clip(); + } + this.pendingClip = null; + } + ctx.beginPath(); + }, + getSinglePixelWidth: function CanvasGraphics_getSinglePixelWidth(scale) { + if (this.cachedGetSinglePixelWidth === null) { + var inverse = this.ctx.mozCurrentTransformInverse; + // max of the current horizontal and vertical scale + this.cachedGetSinglePixelWidth = Math.sqrt(Math.max( + (inverse[0] * inverse[0] + inverse[1] * inverse[1]), + (inverse[2] * inverse[2] + inverse[3] * inverse[3]))); + } + return this.cachedGetSinglePixelWidth; + }, + getCanvasPosition: function CanvasGraphics_getCanvasPosition(x, y) { + var transform = this.ctx.mozCurrentTransform; + return [ + transform[0] * x + transform[2] * y + transform[4], + transform[1] * x + transform[3] * y + transform[5] + ]; + } + }; + + for (var op in OPS) { + CanvasGraphics.prototype[OPS[op]] = CanvasGraphics.prototype[op]; + } + + return CanvasGraphics; +})(); + +exports.CanvasGraphics = CanvasGraphics; +exports.createScratchCanvas = createScratchCanvas; +})); + + +(function (root, factory) { + { + factory((root.pdfjsDisplayAPI = {}), root.pdfjsSharedUtil, + root.pdfjsDisplayFontLoader, root.pdfjsDisplayCanvas, + root.pdfjsSharedGlobal); + } +}(this, function (exports, sharedUtil, displayFontLoader, displayCanvas, + sharedGlobal, amdRequire) { + +var InvalidPDFException = sharedUtil.InvalidPDFException; +var MessageHandler = sharedUtil.MessageHandler; +var MissingPDFException = sharedUtil.MissingPDFException; +var PasswordResponses = sharedUtil.PasswordResponses; +var PasswordException = sharedUtil.PasswordException; +var StatTimer = sharedUtil.StatTimer; +var UnexpectedResponseException = sharedUtil.UnexpectedResponseException; +var UnknownErrorException = sharedUtil.UnknownErrorException; +var Util = sharedUtil.Util; +var createPromiseCapability = sharedUtil.createPromiseCapability; +var combineUrl = sharedUtil.combineUrl; +var error = sharedUtil.error; +var deprecated = sharedUtil.deprecated; +var info = sharedUtil.info; +var isArrayBuffer = sharedUtil.isArrayBuffer; +var loadJpegStream = sharedUtil.loadJpegStream; +var stringToBytes = sharedUtil.stringToBytes; +var warn = sharedUtil.warn; +var FontFaceObject = displayFontLoader.FontFaceObject; +var FontLoader = displayFontLoader.FontLoader; +var CanvasGraphics = displayCanvas.CanvasGraphics; +var createScratchCanvas = displayCanvas.createScratchCanvas; +var PDFJS = sharedGlobal.PDFJS; +var globalScope = sharedGlobal.globalScope; var DEFAULT_RANGE_CHUNK_SIZE = 65536; // 2^16 = 65536 @@ -1503,6 +5572,14 @@ PDFJS.openExternalLinksInNewWindow = ( PDFJS.externalLinkTarget = (PDFJS.externalLinkTarget === undefined ? PDFJS.LinkTarget.NONE : PDFJS.externalLinkTarget); +/** + * Specifies the |rel| attribute for external links. Defaults to stripping + * the referrer. + * @var {string} + */ +PDFJS.externalLinkRel = (PDFJS.externalLinkRel === undefined ? + 'noreferrer' : PDFJS.externalLinkRel); + /** * Determines if we can eval strings as JS. Primarily used to improve * performance for font rendering. @@ -3335,3764 +7412,19 @@ PDFJS.UnsupportedManager = (function UnsupportedManagerClosure() { }; })(); +exports.getDocument = PDFJS.getDocument; +exports.PDFDataRangeTransport = PDFDataRangeTransport; +exports.PDFDocumentProxy = PDFDocumentProxy; +exports.PDFPageProxy = PDFPageProxy; +})); -var Metadata = PDFJS.Metadata = (function MetadataClosure() { - function fixMetadata(meta) { - return meta.replace(/>\\376\\377([^<]+)/g, function(all, codes) { - var bytes = codes.replace(/\\([0-3])([0-7])([0-7])/g, - function(code, d1, d2, d3) { - return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1); - }); - var chars = ''; - for (var i = 0; i < bytes.length; i += 2) { - var code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1); - chars += code >= 32 && code < 127 && code !== 60 && code !== 62 && - code !== 38 && false ? String.fromCharCode(code) : - '&#x' + (0x10000 + code).toString(16).substring(1) + ';'; - } - return '>' + chars; - }); + +(function (root, factory) { + { + factory((root.pdfjsDisplaySVG = {}), root.pdfjsSharedUtil); } - - function Metadata(meta) { - if (typeof meta === 'string') { - // Ghostscript produces invalid metadata - meta = fixMetadata(meta); - - var parser = new DOMParser(); - meta = parser.parseFromString(meta, 'application/xml'); - } else if (!(meta instanceof Document)) { - error('Metadata: Invalid metadata object'); - } - - this.metaDocument = meta; - this.metadata = {}; - this.parse(); - } - - Metadata.prototype = { - parse: function Metadata_parse() { - var doc = this.metaDocument; - var rdf = doc.documentElement; - - if (rdf.nodeName.toLowerCase() !== 'rdf:rdf') { // Wrapped in - rdf = rdf.firstChild; - while (rdf && rdf.nodeName.toLowerCase() !== 'rdf:rdf') { - rdf = rdf.nextSibling; - } - } - - var nodeName = (rdf) ? rdf.nodeName.toLowerCase() : null; - if (!rdf || nodeName !== 'rdf:rdf' || !rdf.hasChildNodes()) { - return; - } - - var children = rdf.childNodes, desc, entry, name, i, ii, length, iLength; - for (i = 0, length = children.length; i < length; i++) { - desc = children[i]; - if (desc.nodeName.toLowerCase() !== 'rdf:description') { - continue; - } - - for (ii = 0, iLength = desc.childNodes.length; ii < iLength; ii++) { - if (desc.childNodes[ii].nodeName.toLowerCase() !== '#text') { - entry = desc.childNodes[ii]; - name = entry.nodeName.toLowerCase(); - this.metadata[name] = entry.textContent.trim(); - } - } - } - }, - - get: function Metadata_get(name) { - return this.metadata[name] || null; - }, - - has: function Metadata_has(name) { - return typeof this.metadata[name] !== 'undefined'; - } - }; - - return Metadata; -})(); - - -// contexts store most of the state we need natively. -// However, PDF needs a bit more state, which we store here. - -// Minimal font size that would be used during canvas fillText operations. -var MIN_FONT_SIZE = 16; -// Maximum font size that would be used during canvas fillText operations. -var MAX_FONT_SIZE = 100; -var MAX_GROUP_SIZE = 4096; - -// Heuristic value used when enforcing minimum line widths. -var MIN_WIDTH_FACTOR = 0.65; - -var COMPILE_TYPE3_GLYPHS = true; -var MAX_SIZE_TO_COMPILE = 1000; - -var FULL_CHUNK_HEIGHT = 16; - -function createScratchCanvas(width, height) { - var canvas = document.createElement('canvas'); - canvas.width = width; - canvas.height = height; - return canvas; -} - -function addContextCurrentTransform(ctx) { - // If the context doesn't expose a `mozCurrentTransform`, add a JS based one. - if (!ctx.mozCurrentTransform) { - ctx._originalSave = ctx.save; - ctx._originalRestore = ctx.restore; - ctx._originalRotate = ctx.rotate; - ctx._originalScale = ctx.scale; - ctx._originalTranslate = ctx.translate; - ctx._originalTransform = ctx.transform; - ctx._originalSetTransform = ctx.setTransform; - - ctx._transformMatrix = ctx._transformMatrix || [1, 0, 0, 1, 0, 0]; - ctx._transformStack = []; - - Object.defineProperty(ctx, 'mozCurrentTransform', { - get: function getCurrentTransform() { - return this._transformMatrix; - } - }); - - Object.defineProperty(ctx, 'mozCurrentTransformInverse', { - get: function getCurrentTransformInverse() { - // Calculation done using WolframAlpha: - // http://www.wolframalpha.com/input/? - // i=Inverse+{{a%2C+c%2C+e}%2C+{b%2C+d%2C+f}%2C+{0%2C+0%2C+1}} - - var m = this._transformMatrix; - var a = m[0], b = m[1], c = m[2], d = m[3], e = m[4], f = m[5]; - - var ad_bc = a * d - b * c; - var bc_ad = b * c - a * d; - - return [ - d / ad_bc, - b / bc_ad, - c / bc_ad, - a / ad_bc, - (d * e - c * f) / bc_ad, - (b * e - a * f) / ad_bc - ]; - } - }); - - ctx.save = function ctxSave() { - var old = this._transformMatrix; - this._transformStack.push(old); - this._transformMatrix = old.slice(0, 6); - - this._originalSave(); - }; - - ctx.restore = function ctxRestore() { - var prev = this._transformStack.pop(); - if (prev) { - this._transformMatrix = prev; - this._originalRestore(); - } - }; - - ctx.translate = function ctxTranslate(x, y) { - var m = this._transformMatrix; - m[4] = m[0] * x + m[2] * y + m[4]; - m[5] = m[1] * x + m[3] * y + m[5]; - - this._originalTranslate(x, y); - }; - - ctx.scale = function ctxScale(x, y) { - var m = this._transformMatrix; - m[0] = m[0] * x; - m[1] = m[1] * x; - m[2] = m[2] * y; - m[3] = m[3] * y; - - this._originalScale(x, y); - }; - - ctx.transform = function ctxTransform(a, b, c, d, e, f) { - var m = this._transformMatrix; - this._transformMatrix = [ - m[0] * a + m[2] * b, - m[1] * a + m[3] * b, - m[0] * c + m[2] * d, - m[1] * c + m[3] * d, - m[0] * e + m[2] * f + m[4], - m[1] * e + m[3] * f + m[5] - ]; - - ctx._originalTransform(a, b, c, d, e, f); - }; - - ctx.setTransform = function ctxSetTransform(a, b, c, d, e, f) { - this._transformMatrix = [a, b, c, d, e, f]; - - ctx._originalSetTransform(a, b, c, d, e, f); - }; - - ctx.rotate = function ctxRotate(angle) { - var cosValue = Math.cos(angle); - var sinValue = Math.sin(angle); - - var m = this._transformMatrix; - this._transformMatrix = [ - m[0] * cosValue + m[2] * sinValue, - m[1] * cosValue + m[3] * sinValue, - m[0] * (-sinValue) + m[2] * cosValue, - m[1] * (-sinValue) + m[3] * cosValue, - m[4], - m[5] - ]; - - this._originalRotate(angle); - }; - } -} - -var CachedCanvases = (function CachedCanvasesClosure() { - function CachedCanvases() { - this.cache = Object.create(null); - } - CachedCanvases.prototype = { - getCanvas: function CachedCanvases_getCanvas(id, width, height, - trackTransform) { - var canvasEntry; - if (this.cache[id] !== undefined) { - canvasEntry = this.cache[id]; - canvasEntry.canvas.width = width; - canvasEntry.canvas.height = height; - // reset canvas transform for emulated mozCurrentTransform, if needed - canvasEntry.context.setTransform(1, 0, 0, 1, 0, 0); - } else { - var canvas = createScratchCanvas(width, height); - var ctx = canvas.getContext('2d'); - if (trackTransform) { - addContextCurrentTransform(ctx); - } - this.cache[id] = canvasEntry = {canvas: canvas, context: ctx}; - } - return canvasEntry; - }, - clear: function () { - for (var id in this.cache) { - var canvasEntry = this.cache[id]; - // Zeroing the width and height causes Firefox to release graphics - // resources immediately, which can greatly reduce memory consumption. - canvasEntry.canvas.width = 0; - canvasEntry.canvas.height = 0; - delete this.cache[id]; - } - } - }; - return CachedCanvases; -})(); - -function compileType3Glyph(imgData) { - var POINT_TO_PROCESS_LIMIT = 1000; - - var width = imgData.width, height = imgData.height; - var i, j, j0, width1 = width + 1; - var points = new Uint8Array(width1 * (height + 1)); - var POINT_TYPES = - new Uint8Array([0, 2, 4, 0, 1, 0, 5, 4, 8, 10, 0, 8, 0, 2, 1, 0]); - - // decodes bit-packed mask data - var lineSize = (width + 7) & ~7, data0 = imgData.data; - var data = new Uint8Array(lineSize * height), pos = 0, ii; - for (i = 0, ii = data0.length; i < ii; i++) { - var mask = 128, elem = data0[i]; - while (mask > 0) { - data[pos++] = (elem & mask) ? 0 : 255; - mask >>= 1; - } - } - - // finding iteresting points: every point is located between mask pixels, - // so there will be points of the (width + 1)x(height + 1) grid. Every point - // will have flags assigned based on neighboring mask pixels: - // 4 | 8 - // --P-- - // 2 | 1 - // We are interested only in points with the flags: - // - outside corners: 1, 2, 4, 8; - // - inside corners: 7, 11, 13, 14; - // - and, intersections: 5, 10. - var count = 0; - pos = 0; - if (data[pos] !== 0) { - points[0] = 1; - ++count; - } - for (j = 1; j < width; j++) { - if (data[pos] !== data[pos + 1]) { - points[j] = data[pos] ? 2 : 1; - ++count; - } - pos++; - } - if (data[pos] !== 0) { - points[j] = 2; - ++count; - } - for (i = 1; i < height; i++) { - pos = i * lineSize; - j0 = i * width1; - if (data[pos - lineSize] !== data[pos]) { - points[j0] = data[pos] ? 1 : 8; - ++count; - } - // 'sum' is the position of the current pixel configuration in the 'TYPES' - // array (in order 8-1-2-4, so we can use '>>2' to shift the column). - var sum = (data[pos] ? 4 : 0) + (data[pos - lineSize] ? 8 : 0); - for (j = 1; j < width; j++) { - sum = (sum >> 2) + (data[pos + 1] ? 4 : 0) + - (data[pos - lineSize + 1] ? 8 : 0); - if (POINT_TYPES[sum]) { - points[j0 + j] = POINT_TYPES[sum]; - ++count; - } - pos++; - } - if (data[pos - lineSize] !== data[pos]) { - points[j0 + j] = data[pos] ? 2 : 4; - ++count; - } - - if (count > POINT_TO_PROCESS_LIMIT) { - return null; - } - } - - pos = lineSize * (height - 1); - j0 = i * width1; - if (data[pos] !== 0) { - points[j0] = 8; - ++count; - } - for (j = 1; j < width; j++) { - if (data[pos] !== data[pos + 1]) { - points[j0 + j] = data[pos] ? 4 : 8; - ++count; - } - pos++; - } - if (data[pos] !== 0) { - points[j0 + j] = 4; - ++count; - } - if (count > POINT_TO_PROCESS_LIMIT) { - return null; - } - - // building outlines - var steps = new Int32Array([0, width1, -1, 0, -width1, 0, 0, 0, 1]); - var outlines = []; - for (i = 0; count && i <= height; i++) { - var p = i * width1; - var end = p + width; - while (p < end && !points[p]) { - p++; - } - if (p === end) { - continue; - } - var coords = [p % width1, i]; - - var type = points[p], p0 = p, pp; - do { - var step = steps[type]; - do { - p += step; - } while (!points[p]); - - pp = points[p]; - if (pp !== 5 && pp !== 10) { - // set new direction - type = pp; - // delete mark - points[p] = 0; - } else { // type is 5 or 10, ie, a crossing - // set new direction - type = pp & ((0x33 * type) >> 4); - // set new type for "future hit" - points[p] &= (type >> 2 | type << 2); - } - - coords.push(p % width1); - coords.push((p / width1) | 0); - --count; - } while (p0 !== p); - outlines.push(coords); - --i; - } - - var drawOutline = function(c) { - c.save(); - // the path shall be painted in [0..1]x[0..1] space - c.scale(1 / width, -1 / height); - c.translate(0, -height); - c.beginPath(); - for (var i = 0, ii = outlines.length; i < ii; i++) { - var o = outlines[i]; - c.moveTo(o[0], o[1]); - for (var j = 2, jj = o.length; j < jj; j += 2) { - c.lineTo(o[j], o[j+1]); - } - } - c.fill(); - c.beginPath(); - c.restore(); - }; - - return drawOutline; -} - -var CanvasExtraState = (function CanvasExtraStateClosure() { - function CanvasExtraState(old) { - // Are soft masks and alpha values shapes or opacities? - this.alphaIsShape = false; - this.fontSize = 0; - this.fontSizeScale = 1; - this.textMatrix = IDENTITY_MATRIX; - this.textMatrixScale = 1; - this.fontMatrix = FONT_IDENTITY_MATRIX; - this.leading = 0; - // Current point (in user coordinates) - this.x = 0; - this.y = 0; - // Start of text line (in text coordinates) - this.lineX = 0; - this.lineY = 0; - // Character and word spacing - this.charSpacing = 0; - this.wordSpacing = 0; - this.textHScale = 1; - this.textRenderingMode = TextRenderingMode.FILL; - this.textRise = 0; - // Default fore and background colors - this.fillColor = '#000000'; - this.strokeColor = '#000000'; - this.patternFill = false; - // Note: fill alpha applies to all non-stroking operations - this.fillAlpha = 1; - this.strokeAlpha = 1; - this.lineWidth = 1; - this.activeSMask = null; // nonclonable field (see the save method below) - - this.old = old; - } - - CanvasExtraState.prototype = { - clone: function CanvasExtraState_clone() { - return Object.create(this); - }, - setCurrentPoint: function CanvasExtraState_setCurrentPoint(x, y) { - this.x = x; - this.y = y; - } - }; - return CanvasExtraState; -})(); - -var CanvasGraphics = (function CanvasGraphicsClosure() { - // Defines the time the executeOperatorList is going to be executing - // before it stops and shedules a continue of execution. - var EXECUTION_TIME = 15; - // Defines the number of steps before checking the execution time - var EXECUTION_STEPS = 10; - - function CanvasGraphics(canvasCtx, commonObjs, objs, imageLayer) { - this.ctx = canvasCtx; - this.current = new CanvasExtraState(); - this.stateStack = []; - this.pendingClip = null; - this.pendingEOFill = false; - this.res = null; - this.xobjs = null; - this.commonObjs = commonObjs; - this.objs = objs; - this.imageLayer = imageLayer; - this.groupStack = []; - this.processingType3 = null; - // Patterns are painted relative to the initial page/form transform, see pdf - // spec 8.7.2 NOTE 1. - this.baseTransform = null; - this.baseTransformStack = []; - this.groupLevel = 0; - this.smaskStack = []; - this.smaskCounter = 0; - this.tempSMask = null; - this.cachedCanvases = new CachedCanvases(); - if (canvasCtx) { - // NOTE: if mozCurrentTransform is polyfilled, then the current state of - // the transformation must already be set in canvasCtx._transformMatrix. - addContextCurrentTransform(canvasCtx); - } - this.cachedGetSinglePixelWidth = null; - } - - function putBinaryImageData(ctx, imgData) { - if (typeof ImageData !== 'undefined' && imgData instanceof ImageData) { - ctx.putImageData(imgData, 0, 0); - return; - } - - // Put the image data to the canvas in chunks, rather than putting the - // whole image at once. This saves JS memory, because the ImageData object - // is smaller. It also possibly saves C++ memory within the implementation - // of putImageData(). (E.g. in Firefox we make two short-lived copies of - // the data passed to putImageData()). |n| shouldn't be too small, however, - // because too many putImageData() calls will slow things down. - // - // Note: as written, if the last chunk is partial, the putImageData() call - // will (conceptually) put pixels past the bounds of the canvas. But - // that's ok; any such pixels are ignored. - - var height = imgData.height, width = imgData.width; - var partialChunkHeight = height % FULL_CHUNK_HEIGHT; - var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT; - var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1; - - var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT); - var srcPos = 0, destPos; - var src = imgData.data; - var dest = chunkImgData.data; - var i, j, thisChunkHeight, elemsInThisChunk; - - // There are multiple forms in which the pixel data can be passed, and - // imgData.kind tells us which one this is. - if (imgData.kind === ImageKind.GRAYSCALE_1BPP) { - // Grayscale, 1 bit per pixel (i.e. black-and-white). - var srcLength = src.byteLength; - var dest32 = PDFJS.hasCanvasTypedArrays ? new Uint32Array(dest.buffer) : - new Uint32ArrayView(dest); - var dest32DataLength = dest32.length; - var fullSrcDiff = (width + 7) >> 3; - var white = 0xFFFFFFFF; - var black = (PDFJS.isLittleEndian || !PDFJS.hasCanvasTypedArrays) ? - 0xFF000000 : 0x000000FF; - for (i = 0; i < totalChunks; i++) { - thisChunkHeight = - (i < fullChunks) ? FULL_CHUNK_HEIGHT : partialChunkHeight; - destPos = 0; - for (j = 0; j < thisChunkHeight; j++) { - var srcDiff = srcLength - srcPos; - var k = 0; - var kEnd = (srcDiff > fullSrcDiff) ? width : srcDiff * 8 - 7; - var kEndUnrolled = kEnd & ~7; - var mask = 0; - var srcByte = 0; - for (; k < kEndUnrolled; k += 8) { - srcByte = src[srcPos++]; - dest32[destPos++] = (srcByte & 128) ? white : black; - dest32[destPos++] = (srcByte & 64) ? white : black; - dest32[destPos++] = (srcByte & 32) ? white : black; - dest32[destPos++] = (srcByte & 16) ? white : black; - dest32[destPos++] = (srcByte & 8) ? white : black; - dest32[destPos++] = (srcByte & 4) ? white : black; - dest32[destPos++] = (srcByte & 2) ? white : black; - dest32[destPos++] = (srcByte & 1) ? white : black; - } - for (; k < kEnd; k++) { - if (mask === 0) { - srcByte = src[srcPos++]; - mask = 128; - } - - dest32[destPos++] = (srcByte & mask) ? white : black; - mask >>= 1; - } - } - // We ran out of input. Make all remaining pixels transparent. - while (destPos < dest32DataLength) { - dest32[destPos++] = 0; - } - - ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT); - } - } else if (imgData.kind === ImageKind.RGBA_32BPP) { - // RGBA, 32-bits per pixel. - - j = 0; - elemsInThisChunk = width * FULL_CHUNK_HEIGHT * 4; - for (i = 0; i < fullChunks; i++) { - dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk)); - srcPos += elemsInThisChunk; - - ctx.putImageData(chunkImgData, 0, j); - j += FULL_CHUNK_HEIGHT; - } - if (i < totalChunks) { - elemsInThisChunk = width * partialChunkHeight * 4; - dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk)); - ctx.putImageData(chunkImgData, 0, j); - } - - } else if (imgData.kind === ImageKind.RGB_24BPP) { - // RGB, 24-bits per pixel. - thisChunkHeight = FULL_CHUNK_HEIGHT; - elemsInThisChunk = width * thisChunkHeight; - for (i = 0; i < totalChunks; i++) { - if (i >= fullChunks) { - thisChunkHeight = partialChunkHeight; - elemsInThisChunk = width * thisChunkHeight; - } - - destPos = 0; - for (j = elemsInThisChunk; j--;) { - dest[destPos++] = src[srcPos++]; - dest[destPos++] = src[srcPos++]; - dest[destPos++] = src[srcPos++]; - dest[destPos++] = 255; - } - ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT); - } - } else { - error('bad image kind: ' + imgData.kind); - } - } - - function putBinaryImageMask(ctx, imgData) { - var height = imgData.height, width = imgData.width; - var partialChunkHeight = height % FULL_CHUNK_HEIGHT; - var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT; - var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1; - - var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT); - var srcPos = 0; - var src = imgData.data; - var dest = chunkImgData.data; - - for (var i = 0; i < totalChunks; i++) { - var thisChunkHeight = - (i < fullChunks) ? FULL_CHUNK_HEIGHT : partialChunkHeight; - - // Expand the mask so it can be used by the canvas. Any required - // inversion has already been handled. - var destPos = 3; // alpha component offset - for (var j = 0; j < thisChunkHeight; j++) { - var mask = 0; - for (var k = 0; k < width; k++) { - if (!mask) { - var elem = src[srcPos++]; - mask = 128; - } - dest[destPos] = (elem & mask) ? 0 : 255; - destPos += 4; - mask >>= 1; - } - } - ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT); - } - } - - function copyCtxState(sourceCtx, destCtx) { - var properties = ['strokeStyle', 'fillStyle', 'fillRule', 'globalAlpha', - 'lineWidth', 'lineCap', 'lineJoin', 'miterLimit', - 'globalCompositeOperation', 'font']; - for (var i = 0, ii = properties.length; i < ii; i++) { - var property = properties[i]; - if (sourceCtx[property] !== undefined) { - destCtx[property] = sourceCtx[property]; - } - } - if (sourceCtx.setLineDash !== undefined) { - destCtx.setLineDash(sourceCtx.getLineDash()); - destCtx.lineDashOffset = sourceCtx.lineDashOffset; - } else if (sourceCtx.mozDashOffset !== undefined) { - destCtx.mozDash = sourceCtx.mozDash; - destCtx.mozDashOffset = sourceCtx.mozDashOffset; - } - } - - function composeSMaskBackdrop(bytes, r0, g0, b0) { - var length = bytes.length; - for (var i = 3; i < length; i += 4) { - var alpha = bytes[i]; - if (alpha === 0) { - bytes[i - 3] = r0; - bytes[i - 2] = g0; - bytes[i - 1] = b0; - } else if (alpha < 255) { - var alpha_ = 255 - alpha; - bytes[i - 3] = (bytes[i - 3] * alpha + r0 * alpha_) >> 8; - bytes[i - 2] = (bytes[i - 2] * alpha + g0 * alpha_) >> 8; - bytes[i - 1] = (bytes[i - 1] * alpha + b0 * alpha_) >> 8; - } - } - } - - function composeSMaskAlpha(maskData, layerData, transferMap) { - var length = maskData.length; - var scale = 1 / 255; - for (var i = 3; i < length; i += 4) { - var alpha = transferMap ? transferMap[maskData[i]] : maskData[i]; - layerData[i] = (layerData[i] * alpha * scale) | 0; - } - } - - function composeSMaskLuminosity(maskData, layerData, transferMap) { - var length = maskData.length; - for (var i = 3; i < length; i += 4) { - var y = (maskData[i - 3] * 77) + // * 0.3 / 255 * 0x10000 - (maskData[i - 2] * 152) + // * 0.59 .... - (maskData[i - 1] * 28); // * 0.11 .... - layerData[i] = transferMap ? - (layerData[i] * transferMap[y >> 8]) >> 8 : - (layerData[i] * y) >> 16; - } - } - - function genericComposeSMask(maskCtx, layerCtx, width, height, - subtype, backdrop, transferMap) { - var hasBackdrop = !!backdrop; - var r0 = hasBackdrop ? backdrop[0] : 0; - var g0 = hasBackdrop ? backdrop[1] : 0; - var b0 = hasBackdrop ? backdrop[2] : 0; - - var composeFn; - if (subtype === 'Luminosity') { - composeFn = composeSMaskLuminosity; - } else { - composeFn = composeSMaskAlpha; - } - - // processing image in chunks to save memory - var PIXELS_TO_PROCESS = 1048576; - var chunkSize = Math.min(height, Math.ceil(PIXELS_TO_PROCESS / width)); - for (var row = 0; row < height; row += chunkSize) { - var chunkHeight = Math.min(chunkSize, height - row); - var maskData = maskCtx.getImageData(0, row, width, chunkHeight); - var layerData = layerCtx.getImageData(0, row, width, chunkHeight); - - if (hasBackdrop) { - composeSMaskBackdrop(maskData.data, r0, g0, b0); - } - composeFn(maskData.data, layerData.data, transferMap); - - maskCtx.putImageData(layerData, 0, row); - } - } - - function composeSMask(ctx, smask, layerCtx) { - var mask = smask.canvas; - var maskCtx = smask.context; - - ctx.setTransform(smask.scaleX, 0, 0, smask.scaleY, - smask.offsetX, smask.offsetY); - - var backdrop = smask.backdrop || null; - if (!smask.transferMap && WebGLUtils.isEnabled) { - var composed = WebGLUtils.composeSMask(layerCtx.canvas, mask, - {subtype: smask.subtype, backdrop: backdrop}); - ctx.setTransform(1, 0, 0, 1, 0, 0); - ctx.drawImage(composed, smask.offsetX, smask.offsetY); - return; - } - genericComposeSMask(maskCtx, layerCtx, mask.width, mask.height, - smask.subtype, backdrop, smask.transferMap); - ctx.drawImage(mask, 0, 0); - } - - var LINE_CAP_STYLES = ['butt', 'round', 'square']; - var LINE_JOIN_STYLES = ['miter', 'round', 'bevel']; - var NORMAL_CLIP = {}; - var EO_CLIP = {}; - - CanvasGraphics.prototype = { - - beginDrawing: function CanvasGraphics_beginDrawing(transform, viewport, - transparency) { - // For pdfs that use blend modes we have to clear the canvas else certain - // blend modes can look wrong since we'd be blending with a white - // backdrop. The problem with a transparent backdrop though is we then - // don't get sub pixel anti aliasing on text, creating temporary - // transparent canvas when we have blend modes. - var width = this.ctx.canvas.width; - var height = this.ctx.canvas.height; - - this.ctx.save(); - this.ctx.fillStyle = 'rgb(255, 255, 255)'; - this.ctx.fillRect(0, 0, width, height); - this.ctx.restore(); - - if (transparency) { - var transparentCanvas = this.cachedCanvases.getCanvas( - 'transparent', width, height, true); - this.compositeCtx = this.ctx; - this.transparentCanvas = transparentCanvas.canvas; - this.ctx = transparentCanvas.context; - this.ctx.save(); - // The transform can be applied before rendering, transferring it to - // the new canvas. - this.ctx.transform.apply(this.ctx, - this.compositeCtx.mozCurrentTransform); - } - - this.ctx.save(); - if (transform) { - this.ctx.transform.apply(this.ctx, transform); - } - this.ctx.transform.apply(this.ctx, viewport.transform); - - this.baseTransform = this.ctx.mozCurrentTransform.slice(); - - if (this.imageLayer) { - this.imageLayer.beginLayout(); - } - }, - - executeOperatorList: function CanvasGraphics_executeOperatorList( - operatorList, - executionStartIdx, continueCallback, - stepper) { - var argsArray = operatorList.argsArray; - var fnArray = operatorList.fnArray; - var i = executionStartIdx || 0; - var argsArrayLen = argsArray.length; - - // Sometimes the OperatorList to execute is empty. - if (argsArrayLen === i) { - return i; - } - - var chunkOperations = (argsArrayLen - i > EXECUTION_STEPS && - typeof continueCallback === 'function'); - var endTime = chunkOperations ? Date.now() + EXECUTION_TIME : 0; - var steps = 0; - - var commonObjs = this.commonObjs; - var objs = this.objs; - var fnId; - - while (true) { - if (stepper !== undefined && i === stepper.nextBreakPoint) { - stepper.breakIt(i, continueCallback); - return i; - } - - fnId = fnArray[i]; - - if (fnId !== OPS.dependency) { - this[fnId].apply(this, argsArray[i]); - } else { - var deps = argsArray[i]; - for (var n = 0, nn = deps.length; n < nn; n++) { - var depObjId = deps[n]; - var common = depObjId[0] === 'g' && depObjId[1] === '_'; - var objsPool = common ? commonObjs : objs; - - // If the promise isn't resolved yet, add the continueCallback - // to the promise and bail out. - if (!objsPool.isResolved(depObjId)) { - objsPool.get(depObjId, continueCallback); - return i; - } - } - } - - i++; - - // If the entire operatorList was executed, stop as were done. - if (i === argsArrayLen) { - return i; - } - - // If the execution took longer then a certain amount of time and - // `continueCallback` is specified, interrupt the execution. - if (chunkOperations && ++steps > EXECUTION_STEPS) { - if (Date.now() > endTime) { - continueCallback(); - return i; - } - steps = 0; - } - - // If the operatorList isn't executed completely yet OR the execution - // time was short enough, do another execution round. - } - }, - - endDrawing: function CanvasGraphics_endDrawing() { - this.ctx.restore(); - - if (this.transparentCanvas) { - this.ctx = this.compositeCtx; - this.ctx.drawImage(this.transparentCanvas, 0, 0); - this.transparentCanvas = null; - } - - this.cachedCanvases.clear(); - WebGLUtils.clear(); - - if (this.imageLayer) { - this.imageLayer.endLayout(); - } - }, - - // Graphics state - setLineWidth: function CanvasGraphics_setLineWidth(width) { - this.current.lineWidth = width; - this.ctx.lineWidth = width; - }, - setLineCap: function CanvasGraphics_setLineCap(style) { - this.ctx.lineCap = LINE_CAP_STYLES[style]; - }, - setLineJoin: function CanvasGraphics_setLineJoin(style) { - this.ctx.lineJoin = LINE_JOIN_STYLES[style]; - }, - setMiterLimit: function CanvasGraphics_setMiterLimit(limit) { - this.ctx.miterLimit = limit; - }, - setDash: function CanvasGraphics_setDash(dashArray, dashPhase) { - var ctx = this.ctx; - if (ctx.setLineDash !== undefined) { - ctx.setLineDash(dashArray); - ctx.lineDashOffset = dashPhase; - } else { - ctx.mozDash = dashArray; - ctx.mozDashOffset = dashPhase; - } - }, - setRenderingIntent: function CanvasGraphics_setRenderingIntent(intent) { - // Maybe if we one day fully support color spaces this will be important - // for now we can ignore. - // TODO set rendering intent? - }, - setFlatness: function CanvasGraphics_setFlatness(flatness) { - // There's no way to control this with canvas, but we can safely ignore. - // TODO set flatness? - }, - setGState: function CanvasGraphics_setGState(states) { - for (var i = 0, ii = states.length; i < ii; i++) { - var state = states[i]; - var key = state[0]; - var value = state[1]; - - switch (key) { - case 'LW': - this.setLineWidth(value); - break; - case 'LC': - this.setLineCap(value); - break; - case 'LJ': - this.setLineJoin(value); - break; - case 'ML': - this.setMiterLimit(value); - break; - case 'D': - this.setDash(value[0], value[1]); - break; - case 'RI': - this.setRenderingIntent(value); - break; - case 'FL': - this.setFlatness(value); - break; - case 'Font': - this.setFont(value[0], value[1]); - break; - case 'CA': - this.current.strokeAlpha = state[1]; - break; - case 'ca': - this.current.fillAlpha = state[1]; - this.ctx.globalAlpha = state[1]; - break; - case 'BM': - if (value && value.name && (value.name !== 'Normal')) { - var mode = value.name.replace(/([A-Z])/g, - function(c) { - return '-' + c.toLowerCase(); - } - ).substring(1); - this.ctx.globalCompositeOperation = mode; - if (this.ctx.globalCompositeOperation !== mode) { - warn('globalCompositeOperation "' + mode + - '" is not supported'); - } - } else { - this.ctx.globalCompositeOperation = 'source-over'; - } - break; - case 'SMask': - if (this.current.activeSMask) { - this.endSMaskGroup(); - } - this.current.activeSMask = value ? this.tempSMask : null; - if (this.current.activeSMask) { - this.beginSMaskGroup(); - } - this.tempSMask = null; - break; - } - } - }, - beginSMaskGroup: function CanvasGraphics_beginSMaskGroup() { - - var activeSMask = this.current.activeSMask; - var drawnWidth = activeSMask.canvas.width; - var drawnHeight = activeSMask.canvas.height; - var cacheId = 'smaskGroupAt' + this.groupLevel; - var scratchCanvas = this.cachedCanvases.getCanvas( - cacheId, drawnWidth, drawnHeight, true); - - var currentCtx = this.ctx; - var currentTransform = currentCtx.mozCurrentTransform; - this.ctx.save(); - - var groupCtx = scratchCanvas.context; - groupCtx.scale(1 / activeSMask.scaleX, 1 / activeSMask.scaleY); - groupCtx.translate(-activeSMask.offsetX, -activeSMask.offsetY); - groupCtx.transform.apply(groupCtx, currentTransform); - - copyCtxState(currentCtx, groupCtx); - this.ctx = groupCtx; - this.setGState([ - ['BM', 'Normal'], - ['ca', 1], - ['CA', 1] - ]); - this.groupStack.push(currentCtx); - this.groupLevel++; - }, - endSMaskGroup: function CanvasGraphics_endSMaskGroup() { - var groupCtx = this.ctx; - this.groupLevel--; - this.ctx = this.groupStack.pop(); - - composeSMask(this.ctx, this.current.activeSMask, groupCtx); - this.ctx.restore(); - copyCtxState(groupCtx, this.ctx); - }, - save: function CanvasGraphics_save() { - this.ctx.save(); - var old = this.current; - this.stateStack.push(old); - this.current = old.clone(); - this.current.activeSMask = null; - }, - restore: function CanvasGraphics_restore() { - if (this.stateStack.length !== 0) { - if (this.current.activeSMask !== null) { - this.endSMaskGroup(); - } - - this.current = this.stateStack.pop(); - this.ctx.restore(); - - // Ensure that the clipping path is reset (fixes issue6413.pdf). - this.pendingClip = null; - - this.cachedGetSinglePixelWidth = null; - } - }, - transform: function CanvasGraphics_transform(a, b, c, d, e, f) { - this.ctx.transform(a, b, c, d, e, f); - - this.cachedGetSinglePixelWidth = null; - }, - - // Path - constructPath: function CanvasGraphics_constructPath(ops, args) { - var ctx = this.ctx; - var current = this.current; - var x = current.x, y = current.y; - for (var i = 0, j = 0, ii = ops.length; i < ii; i++) { - switch (ops[i] | 0) { - case OPS.rectangle: - x = args[j++]; - y = args[j++]; - var width = args[j++]; - var height = args[j++]; - if (width === 0) { - width = this.getSinglePixelWidth(); - } - if (height === 0) { - height = this.getSinglePixelWidth(); - } - var xw = x + width; - var yh = y + height; - this.ctx.moveTo(x, y); - this.ctx.lineTo(xw, y); - this.ctx.lineTo(xw, yh); - this.ctx.lineTo(x, yh); - this.ctx.lineTo(x, y); - this.ctx.closePath(); - break; - case OPS.moveTo: - x = args[j++]; - y = args[j++]; - ctx.moveTo(x, y); - break; - case OPS.lineTo: - x = args[j++]; - y = args[j++]; - ctx.lineTo(x, y); - break; - case OPS.curveTo: - x = args[j + 4]; - y = args[j + 5]; - ctx.bezierCurveTo(args[j], args[j + 1], args[j + 2], args[j + 3], - x, y); - j += 6; - break; - case OPS.curveTo2: - ctx.bezierCurveTo(x, y, args[j], args[j + 1], - args[j + 2], args[j + 3]); - x = args[j + 2]; - y = args[j + 3]; - j += 4; - break; - case OPS.curveTo3: - x = args[j + 2]; - y = args[j + 3]; - ctx.bezierCurveTo(args[j], args[j + 1], x, y, x, y); - j += 4; - break; - case OPS.closePath: - ctx.closePath(); - break; - } - } - current.setCurrentPoint(x, y); - }, - closePath: function CanvasGraphics_closePath() { - this.ctx.closePath(); - }, - stroke: function CanvasGraphics_stroke(consumePath) { - consumePath = typeof consumePath !== 'undefined' ? consumePath : true; - var ctx = this.ctx; - var strokeColor = this.current.strokeColor; - // Prevent drawing too thin lines by enforcing a minimum line width. - ctx.lineWidth = Math.max(this.getSinglePixelWidth() * MIN_WIDTH_FACTOR, - this.current.lineWidth); - // For stroke we want to temporarily change the global alpha to the - // stroking alpha. - ctx.globalAlpha = this.current.strokeAlpha; - if (strokeColor && strokeColor.hasOwnProperty('type') && - strokeColor.type === 'Pattern') { - // for patterns, we transform to pattern space, calculate - // the pattern, call stroke, and restore to user space - ctx.save(); - ctx.strokeStyle = strokeColor.getPattern(ctx, this); - ctx.stroke(); - ctx.restore(); - } else { - ctx.stroke(); - } - if (consumePath) { - this.consumePath(); - } - // Restore the global alpha to the fill alpha - ctx.globalAlpha = this.current.fillAlpha; - }, - closeStroke: function CanvasGraphics_closeStroke() { - this.closePath(); - this.stroke(); - }, - fill: function CanvasGraphics_fill(consumePath) { - consumePath = typeof consumePath !== 'undefined' ? consumePath : true; - var ctx = this.ctx; - var fillColor = this.current.fillColor; - var isPatternFill = this.current.patternFill; - var needRestore = false; - - if (isPatternFill) { - ctx.save(); - ctx.fillStyle = fillColor.getPattern(ctx, this); - needRestore = true; - } - - if (this.pendingEOFill) { - if (ctx.mozFillRule !== undefined) { - ctx.mozFillRule = 'evenodd'; - ctx.fill(); - ctx.mozFillRule = 'nonzero'; - } else { - ctx.fill('evenodd'); - } - this.pendingEOFill = false; - } else { - ctx.fill(); - } - - if (needRestore) { - ctx.restore(); - } - if (consumePath) { - this.consumePath(); - } - }, - eoFill: function CanvasGraphics_eoFill() { - this.pendingEOFill = true; - this.fill(); - }, - fillStroke: function CanvasGraphics_fillStroke() { - this.fill(false); - this.stroke(false); - - this.consumePath(); - }, - eoFillStroke: function CanvasGraphics_eoFillStroke() { - this.pendingEOFill = true; - this.fillStroke(); - }, - closeFillStroke: function CanvasGraphics_closeFillStroke() { - this.closePath(); - this.fillStroke(); - }, - closeEOFillStroke: function CanvasGraphics_closeEOFillStroke() { - this.pendingEOFill = true; - this.closePath(); - this.fillStroke(); - }, - endPath: function CanvasGraphics_endPath() { - this.consumePath(); - }, - - // Clipping - clip: function CanvasGraphics_clip() { - this.pendingClip = NORMAL_CLIP; - }, - eoClip: function CanvasGraphics_eoClip() { - this.pendingClip = EO_CLIP; - }, - - // Text - beginText: function CanvasGraphics_beginText() { - this.current.textMatrix = IDENTITY_MATRIX; - this.current.textMatrixScale = 1; - this.current.x = this.current.lineX = 0; - this.current.y = this.current.lineY = 0; - }, - endText: function CanvasGraphics_endText() { - var paths = this.pendingTextPaths; - var ctx = this.ctx; - if (paths === undefined) { - ctx.beginPath(); - return; - } - - ctx.save(); - ctx.beginPath(); - for (var i = 0; i < paths.length; i++) { - var path = paths[i]; - ctx.setTransform.apply(ctx, path.transform); - ctx.translate(path.x, path.y); - path.addToPath(ctx, path.fontSize); - } - ctx.restore(); - ctx.clip(); - ctx.beginPath(); - delete this.pendingTextPaths; - }, - setCharSpacing: function CanvasGraphics_setCharSpacing(spacing) { - this.current.charSpacing = spacing; - }, - setWordSpacing: function CanvasGraphics_setWordSpacing(spacing) { - this.current.wordSpacing = spacing; - }, - setHScale: function CanvasGraphics_setHScale(scale) { - this.current.textHScale = scale / 100; - }, - setLeading: function CanvasGraphics_setLeading(leading) { - this.current.leading = -leading; - }, - setFont: function CanvasGraphics_setFont(fontRefName, size) { - var fontObj = this.commonObjs.get(fontRefName); - var current = this.current; - - if (!fontObj) { - error('Can\'t find font for ' + fontRefName); - } - - current.fontMatrix = (fontObj.fontMatrix ? - fontObj.fontMatrix : FONT_IDENTITY_MATRIX); - - // A valid matrix needs all main diagonal elements to be non-zero - // This also ensures we bypass FF bugzilla bug #719844. - if (current.fontMatrix[0] === 0 || - current.fontMatrix[3] === 0) { - warn('Invalid font matrix for font ' + fontRefName); - } - - // The spec for Tf (setFont) says that 'size' specifies the font 'scale', - // and in some docs this can be negative (inverted x-y axes). - if (size < 0) { - size = -size; - current.fontDirection = -1; - } else { - current.fontDirection = 1; - } - - this.current.font = fontObj; - this.current.fontSize = size; - - if (fontObj.isType3Font) { - return; // we don't need ctx.font for Type3 fonts - } - - var name = fontObj.loadedName || 'sans-serif'; - var bold = fontObj.black ? (fontObj.bold ? '900' : 'bold') : - (fontObj.bold ? 'bold' : 'normal'); - - var italic = fontObj.italic ? 'italic' : 'normal'; - var typeface = '"' + name + '", ' + fontObj.fallbackName; - - // Some font backends cannot handle fonts below certain size. - // Keeping the font at minimal size and using the fontSizeScale to change - // the current transformation matrix before the fillText/strokeText. - // See https://bugzilla.mozilla.org/show_bug.cgi?id=726227 - var browserFontSize = size < MIN_FONT_SIZE ? MIN_FONT_SIZE : - size > MAX_FONT_SIZE ? MAX_FONT_SIZE : size; - this.current.fontSizeScale = size / browserFontSize; - - var rule = italic + ' ' + bold + ' ' + browserFontSize + 'px ' + typeface; - this.ctx.font = rule; - }, - setTextRenderingMode: function CanvasGraphics_setTextRenderingMode(mode) { - this.current.textRenderingMode = mode; - }, - setTextRise: function CanvasGraphics_setTextRise(rise) { - this.current.textRise = rise; - }, - moveText: function CanvasGraphics_moveText(x, y) { - this.current.x = this.current.lineX += x; - this.current.y = this.current.lineY += y; - }, - setLeadingMoveText: function CanvasGraphics_setLeadingMoveText(x, y) { - this.setLeading(-y); - this.moveText(x, y); - }, - setTextMatrix: function CanvasGraphics_setTextMatrix(a, b, c, d, e, f) { - this.current.textMatrix = [a, b, c, d, e, f]; - this.current.textMatrixScale = Math.sqrt(a * a + b * b); - - this.current.x = this.current.lineX = 0; - this.current.y = this.current.lineY = 0; - }, - nextLine: function CanvasGraphics_nextLine() { - this.moveText(0, this.current.leading); - }, - - paintChar: function CanvasGraphics_paintChar(character, x, y) { - var ctx = this.ctx; - var current = this.current; - var font = current.font; - var textRenderingMode = current.textRenderingMode; - var fontSize = current.fontSize / current.fontSizeScale; - var fillStrokeMode = textRenderingMode & - TextRenderingMode.FILL_STROKE_MASK; - var isAddToPathSet = !!(textRenderingMode & - TextRenderingMode.ADD_TO_PATH_FLAG); - - var addToPath; - if (font.disableFontFace || isAddToPathSet) { - addToPath = font.getPathGenerator(this.commonObjs, character); - } - - if (font.disableFontFace) { - ctx.save(); - ctx.translate(x, y); - ctx.beginPath(); - addToPath(ctx, fontSize); - if (fillStrokeMode === TextRenderingMode.FILL || - fillStrokeMode === TextRenderingMode.FILL_STROKE) { - ctx.fill(); - } - if (fillStrokeMode === TextRenderingMode.STROKE || - fillStrokeMode === TextRenderingMode.FILL_STROKE) { - ctx.stroke(); - } - ctx.restore(); - } else { - if (fillStrokeMode === TextRenderingMode.FILL || - fillStrokeMode === TextRenderingMode.FILL_STROKE) { - ctx.fillText(character, x, y); - } - if (fillStrokeMode === TextRenderingMode.STROKE || - fillStrokeMode === TextRenderingMode.FILL_STROKE) { - ctx.strokeText(character, x, y); - } - } - - if (isAddToPathSet) { - var paths = this.pendingTextPaths || (this.pendingTextPaths = []); - paths.push({ - transform: ctx.mozCurrentTransform, - x: x, - y: y, - fontSize: fontSize, - addToPath: addToPath - }); - } - }, - - get isFontSubpixelAAEnabled() { - // Checks if anti-aliasing is enabled when scaled text is painted. - // On Windows GDI scaled fonts looks bad. - var ctx = document.createElement('canvas').getContext('2d'); - ctx.scale(1.5, 1); - ctx.fillText('I', 0, 10); - var data = ctx.getImageData(0, 0, 10, 10).data; - var enabled = false; - for (var i = 3; i < data.length; i += 4) { - if (data[i] > 0 && data[i] < 255) { - enabled = true; - break; - } - } - return shadow(this, 'isFontSubpixelAAEnabled', enabled); - }, - - showText: function CanvasGraphics_showText(glyphs) { - var current = this.current; - var font = current.font; - if (font.isType3Font) { - return this.showType3Text(glyphs); - } - - var fontSize = current.fontSize; - if (fontSize === 0) { - return; - } - - var ctx = this.ctx; - var fontSizeScale = current.fontSizeScale; - var charSpacing = current.charSpacing; - var wordSpacing = current.wordSpacing; - var fontDirection = current.fontDirection; - var textHScale = current.textHScale * fontDirection; - var glyphsLength = glyphs.length; - var vertical = font.vertical; - var spacingDir = vertical ? 1 : -1; - var defaultVMetrics = font.defaultVMetrics; - var widthAdvanceScale = fontSize * current.fontMatrix[0]; - - var simpleFillText = - current.textRenderingMode === TextRenderingMode.FILL && - !font.disableFontFace; - - ctx.save(); - ctx.transform.apply(ctx, current.textMatrix); - ctx.translate(current.x, current.y + current.textRise); - - if (fontDirection > 0) { - ctx.scale(textHScale, -1); - } else { - ctx.scale(textHScale, 1); - } - - var lineWidth = current.lineWidth; - var scale = current.textMatrixScale; - if (scale === 0 || lineWidth === 0) { - var fillStrokeMode = current.textRenderingMode & - TextRenderingMode.FILL_STROKE_MASK; - if (fillStrokeMode === TextRenderingMode.STROKE || - fillStrokeMode === TextRenderingMode.FILL_STROKE) { - this.cachedGetSinglePixelWidth = null; - lineWidth = this.getSinglePixelWidth() * MIN_WIDTH_FACTOR; - } - } else { - lineWidth /= scale; - } - - if (fontSizeScale !== 1.0) { - ctx.scale(fontSizeScale, fontSizeScale); - lineWidth /= fontSizeScale; - } - - ctx.lineWidth = lineWidth; - - var x = 0, i; - for (i = 0; i < glyphsLength; ++i) { - var glyph = glyphs[i]; - if (isNum(glyph)) { - x += spacingDir * glyph * fontSize / 1000; - continue; - } - - var restoreNeeded = false; - var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing; - var character = glyph.fontChar; - var accent = glyph.accent; - var scaledX, scaledY, scaledAccentX, scaledAccentY; - var width = glyph.width; - if (vertical) { - var vmetric, vx, vy; - vmetric = glyph.vmetric || defaultVMetrics; - vx = glyph.vmetric ? vmetric[1] : width * 0.5; - vx = -vx * widthAdvanceScale; - vy = vmetric[2] * widthAdvanceScale; - - width = vmetric ? -vmetric[0] : width; - scaledX = vx / fontSizeScale; - scaledY = (x + vy) / fontSizeScale; - } else { - scaledX = x / fontSizeScale; - scaledY = 0; - } - - if (font.remeasure && width > 0) { - // Some standard fonts may not have the exact width: rescale per - // character if measured width is greater than expected glyph width - // and subpixel-aa is enabled, otherwise just center the glyph. - var measuredWidth = ctx.measureText(character).width * 1000 / - fontSize * fontSizeScale; - if (width < measuredWidth && this.isFontSubpixelAAEnabled) { - var characterScaleX = width / measuredWidth; - restoreNeeded = true; - ctx.save(); - ctx.scale(characterScaleX, 1); - scaledX /= characterScaleX; - } else if (width !== measuredWidth) { - scaledX += (width - measuredWidth) / 2000 * - fontSize / fontSizeScale; - } - } - - if (simpleFillText && !accent) { - // common case - ctx.fillText(character, scaledX, scaledY); - } else { - this.paintChar(character, scaledX, scaledY); - if (accent) { - scaledAccentX = scaledX + accent.offset.x / fontSizeScale; - scaledAccentY = scaledY - accent.offset.y / fontSizeScale; - this.paintChar(accent.fontChar, scaledAccentX, scaledAccentY); - } - } - - var charWidth = width * widthAdvanceScale + spacing * fontDirection; - x += charWidth; - - if (restoreNeeded) { - ctx.restore(); - } - } - if (vertical) { - current.y -= x * textHScale; - } else { - current.x += x * textHScale; - } - ctx.restore(); - }, - - showType3Text: function CanvasGraphics_showType3Text(glyphs) { - // Type3 fonts - each glyph is a "mini-PDF" - var ctx = this.ctx; - var current = this.current; - var font = current.font; - var fontSize = current.fontSize; - var fontDirection = current.fontDirection; - var spacingDir = font.vertical ? 1 : -1; - var charSpacing = current.charSpacing; - var wordSpacing = current.wordSpacing; - var textHScale = current.textHScale * fontDirection; - var fontMatrix = current.fontMatrix || FONT_IDENTITY_MATRIX; - var glyphsLength = glyphs.length; - var isTextInvisible = - current.textRenderingMode === TextRenderingMode.INVISIBLE; - var i, glyph, width, spacingLength; - - if (isTextInvisible || fontSize === 0) { - return; - } - this.cachedGetSinglePixelWidth = null; - - ctx.save(); - ctx.transform.apply(ctx, current.textMatrix); - ctx.translate(current.x, current.y); - - ctx.scale(textHScale, fontDirection); - - for (i = 0; i < glyphsLength; ++i) { - glyph = glyphs[i]; - if (isNum(glyph)) { - spacingLength = spacingDir * glyph * fontSize / 1000; - this.ctx.translate(spacingLength, 0); - current.x += spacingLength * textHScale; - continue; - } - - var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing; - var operatorList = font.charProcOperatorList[glyph.operatorListId]; - if (!operatorList) { - warn('Type3 character \"' + glyph.operatorListId + - '\" is not available'); - continue; - } - this.processingType3 = glyph; - this.save(); - ctx.scale(fontSize, fontSize); - ctx.transform.apply(ctx, fontMatrix); - this.executeOperatorList(operatorList); - this.restore(); - - var transformed = Util.applyTransform([glyph.width, 0], fontMatrix); - width = transformed[0] * fontSize + spacing; - - ctx.translate(width, 0); - current.x += width * textHScale; - } - ctx.restore(); - this.processingType3 = null; - }, - - // Type3 fonts - setCharWidth: function CanvasGraphics_setCharWidth(xWidth, yWidth) { - // We can safely ignore this since the width should be the same - // as the width in the Widths array. - }, - setCharWidthAndBounds: function CanvasGraphics_setCharWidthAndBounds(xWidth, - yWidth, - llx, - lly, - urx, - ury) { - // TODO According to the spec we're also suppose to ignore any operators - // that set color or include images while processing this type3 font. - this.ctx.rect(llx, lly, urx - llx, ury - lly); - this.clip(); - this.endPath(); - }, - - // Color - getColorN_Pattern: function CanvasGraphics_getColorN_Pattern(IR) { - var pattern; - if (IR[0] === 'TilingPattern') { - var color = IR[1]; - var baseTransform = this.baseTransform || - this.ctx.mozCurrentTransform.slice(); - pattern = new TilingPattern(IR, color, this.ctx, this.objs, - this.commonObjs, baseTransform); - } else { - pattern = getShadingPatternFromIR(IR); - } - return pattern; - }, - setStrokeColorN: function CanvasGraphics_setStrokeColorN(/*...*/) { - this.current.strokeColor = this.getColorN_Pattern(arguments); - }, - setFillColorN: function CanvasGraphics_setFillColorN(/*...*/) { - this.current.fillColor = this.getColorN_Pattern(arguments); - this.current.patternFill = true; - }, - setStrokeRGBColor: function CanvasGraphics_setStrokeRGBColor(r, g, b) { - var color = Util.makeCssRgb(r, g, b); - this.ctx.strokeStyle = color; - this.current.strokeColor = color; - }, - setFillRGBColor: function CanvasGraphics_setFillRGBColor(r, g, b) { - var color = Util.makeCssRgb(r, g, b); - this.ctx.fillStyle = color; - this.current.fillColor = color; - this.current.patternFill = false; - }, - - shadingFill: function CanvasGraphics_shadingFill(patternIR) { - var ctx = this.ctx; - - this.save(); - var pattern = getShadingPatternFromIR(patternIR); - ctx.fillStyle = pattern.getPattern(ctx, this, true); - - var inv = ctx.mozCurrentTransformInverse; - if (inv) { - var canvas = ctx.canvas; - var width = canvas.width; - var height = canvas.height; - - var bl = Util.applyTransform([0, 0], inv); - var br = Util.applyTransform([0, height], inv); - var ul = Util.applyTransform([width, 0], inv); - var ur = Util.applyTransform([width, height], inv); - - var x0 = Math.min(bl[0], br[0], ul[0], ur[0]); - var y0 = Math.min(bl[1], br[1], ul[1], ur[1]); - var x1 = Math.max(bl[0], br[0], ul[0], ur[0]); - var y1 = Math.max(bl[1], br[1], ul[1], ur[1]); - - this.ctx.fillRect(x0, y0, x1 - x0, y1 - y0); - } else { - // HACK to draw the gradient onto an infinite rectangle. - // PDF gradients are drawn across the entire image while - // Canvas only allows gradients to be drawn in a rectangle - // The following bug should allow us to remove this. - // https://bugzilla.mozilla.org/show_bug.cgi?id=664884 - - this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10); - } - - this.restore(); - }, - - // Images - beginInlineImage: function CanvasGraphics_beginInlineImage() { - error('Should not call beginInlineImage'); - }, - beginImageData: function CanvasGraphics_beginImageData() { - error('Should not call beginImageData'); - }, - - paintFormXObjectBegin: function CanvasGraphics_paintFormXObjectBegin(matrix, - bbox) { - this.save(); - this.baseTransformStack.push(this.baseTransform); - - if (isArray(matrix) && 6 === matrix.length) { - this.transform.apply(this, matrix); - } - - this.baseTransform = this.ctx.mozCurrentTransform; - - if (isArray(bbox) && 4 === bbox.length) { - var width = bbox[2] - bbox[0]; - var height = bbox[3] - bbox[1]; - this.ctx.rect(bbox[0], bbox[1], width, height); - this.clip(); - this.endPath(); - } - }, - - paintFormXObjectEnd: function CanvasGraphics_paintFormXObjectEnd() { - this.restore(); - this.baseTransform = this.baseTransformStack.pop(); - }, - - beginGroup: function CanvasGraphics_beginGroup(group) { - this.save(); - var currentCtx = this.ctx; - // TODO non-isolated groups - according to Rik at adobe non-isolated - // group results aren't usually that different and they even have tools - // that ignore this setting. Notes from Rik on implmenting: - // - When you encounter an transparency group, create a new canvas with - // the dimensions of the bbox - // - copy the content from the previous canvas to the new canvas - // - draw as usual - // - remove the backdrop alpha: - // alphaNew = 1 - (1 - alpha)/(1 - alphaBackdrop) with 'alpha' the alpha - // value of your transparency group and 'alphaBackdrop' the alpha of the - // backdrop - // - remove background color: - // colorNew = color - alphaNew *colorBackdrop /(1 - alphaNew) - if (!group.isolated) { - info('TODO: Support non-isolated groups.'); - } - - // TODO knockout - supposedly possible with the clever use of compositing - // modes. - if (group.knockout) { - warn('Knockout groups not supported.'); - } - - var currentTransform = currentCtx.mozCurrentTransform; - if (group.matrix) { - currentCtx.transform.apply(currentCtx, group.matrix); - } - assert(group.bbox, 'Bounding box is required.'); - - // Based on the current transform figure out how big the bounding box - // will actually be. - var bounds = Util.getAxialAlignedBoundingBox( - group.bbox, - currentCtx.mozCurrentTransform); - // Clip the bounding box to the current canvas. - var canvasBounds = [0, - 0, - currentCtx.canvas.width, - currentCtx.canvas.height]; - bounds = Util.intersect(bounds, canvasBounds) || [0, 0, 0, 0]; - // Use ceil in case we're between sizes so we don't create canvas that is - // too small and make the canvas at least 1x1 pixels. - var offsetX = Math.floor(bounds[0]); - var offsetY = Math.floor(bounds[1]); - var drawnWidth = Math.max(Math.ceil(bounds[2]) - offsetX, 1); - var drawnHeight = Math.max(Math.ceil(bounds[3]) - offsetY, 1); - var scaleX = 1, scaleY = 1; - if (drawnWidth > MAX_GROUP_SIZE) { - scaleX = drawnWidth / MAX_GROUP_SIZE; - drawnWidth = MAX_GROUP_SIZE; - } - if (drawnHeight > MAX_GROUP_SIZE) { - scaleY = drawnHeight / MAX_GROUP_SIZE; - drawnHeight = MAX_GROUP_SIZE; - } - - var cacheId = 'groupAt' + this.groupLevel; - if (group.smask) { - // Using two cache entries is case if masks are used one after another. - cacheId += '_smask_' + ((this.smaskCounter++) % 2); - } - var scratchCanvas = this.cachedCanvases.getCanvas( - cacheId, drawnWidth, drawnHeight, true); - var groupCtx = scratchCanvas.context; - - // Since we created a new canvas that is just the size of the bounding box - // we have to translate the group ctx. - groupCtx.scale(1 / scaleX, 1 / scaleY); - groupCtx.translate(-offsetX, -offsetY); - groupCtx.transform.apply(groupCtx, currentTransform); - - if (group.smask) { - // Saving state and cached mask to be used in setGState. - this.smaskStack.push({ - canvas: scratchCanvas.canvas, - context: groupCtx, - offsetX: offsetX, - offsetY: offsetY, - scaleX: scaleX, - scaleY: scaleY, - subtype: group.smask.subtype, - backdrop: group.smask.backdrop, - transferMap: group.smask.transferMap || null - }); - } else { - // Setup the current ctx so when the group is popped we draw it at the - // right location. - currentCtx.setTransform(1, 0, 0, 1, 0, 0); - currentCtx.translate(offsetX, offsetY); - currentCtx.scale(scaleX, scaleY); - } - // The transparency group inherits all off the current graphics state - // except the blend mode, soft mask, and alpha constants. - copyCtxState(currentCtx, groupCtx); - this.ctx = groupCtx; - this.setGState([ - ['BM', 'Normal'], - ['ca', 1], - ['CA', 1] - ]); - this.groupStack.push(currentCtx); - this.groupLevel++; - }, - - endGroup: function CanvasGraphics_endGroup(group) { - this.groupLevel--; - var groupCtx = this.ctx; - this.ctx = this.groupStack.pop(); - // Turn off image smoothing to avoid sub pixel interpolation which can - // look kind of blurry for some pdfs. - if (this.ctx.imageSmoothingEnabled !== undefined) { - this.ctx.imageSmoothingEnabled = false; - } else { - this.ctx.mozImageSmoothingEnabled = false; - } - if (group.smask) { - this.tempSMask = this.smaskStack.pop(); - } else { - this.ctx.drawImage(groupCtx.canvas, 0, 0); - } - this.restore(); - }, - - beginAnnotations: function CanvasGraphics_beginAnnotations() { - this.save(); - this.current = new CanvasExtraState(); - }, - - endAnnotations: function CanvasGraphics_endAnnotations() { - this.restore(); - }, - - beginAnnotation: function CanvasGraphics_beginAnnotation(rect, transform, - matrix) { - this.save(); - - if (isArray(rect) && 4 === rect.length) { - var width = rect[2] - rect[0]; - var height = rect[3] - rect[1]; - this.ctx.rect(rect[0], rect[1], width, height); - this.clip(); - this.endPath(); - } - - this.transform.apply(this, transform); - this.transform.apply(this, matrix); - }, - - endAnnotation: function CanvasGraphics_endAnnotation() { - this.restore(); - }, - - paintJpegXObject: function CanvasGraphics_paintJpegXObject(objId, w, h) { - var domImage = this.objs.get(objId); - if (!domImage) { - warn('Dependent image isn\'t ready yet'); - return; - } - - this.save(); - - var ctx = this.ctx; - // scale the image to the unit square - ctx.scale(1 / w, -1 / h); - - ctx.drawImage(domImage, 0, 0, domImage.width, domImage.height, - 0, -h, w, h); - if (this.imageLayer) { - var currentTransform = ctx.mozCurrentTransformInverse; - var position = this.getCanvasPosition(0, 0); - this.imageLayer.appendImage({ - objId: objId, - left: position[0], - top: position[1], - width: w / currentTransform[0], - height: h / currentTransform[3] - }); - } - this.restore(); - }, - - paintImageMaskXObject: function CanvasGraphics_paintImageMaskXObject(img) { - var ctx = this.ctx; - var width = img.width, height = img.height; - var fillColor = this.current.fillColor; - var isPatternFill = this.current.patternFill; - - var glyph = this.processingType3; - - if (COMPILE_TYPE3_GLYPHS && glyph && glyph.compiled === undefined) { - if (width <= MAX_SIZE_TO_COMPILE && height <= MAX_SIZE_TO_COMPILE) { - glyph.compiled = - compileType3Glyph({data: img.data, width: width, height: height}); - } else { - glyph.compiled = null; - } - } - - if (glyph && glyph.compiled) { - glyph.compiled(ctx); - return; - } - - var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', - width, height); - var maskCtx = maskCanvas.context; - maskCtx.save(); - - putBinaryImageMask(maskCtx, img); - - maskCtx.globalCompositeOperation = 'source-in'; - - maskCtx.fillStyle = isPatternFill ? - fillColor.getPattern(maskCtx, this) : fillColor; - maskCtx.fillRect(0, 0, width, height); - - maskCtx.restore(); - - this.paintInlineImageXObject(maskCanvas.canvas); - }, - - paintImageMaskXObjectRepeat: - function CanvasGraphics_paintImageMaskXObjectRepeat(imgData, scaleX, - scaleY, positions) { - var width = imgData.width; - var height = imgData.height; - var fillColor = this.current.fillColor; - var isPatternFill = this.current.patternFill; - - var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', - width, height); - var maskCtx = maskCanvas.context; - maskCtx.save(); - - putBinaryImageMask(maskCtx, imgData); - - maskCtx.globalCompositeOperation = 'source-in'; - - maskCtx.fillStyle = isPatternFill ? - fillColor.getPattern(maskCtx, this) : fillColor; - maskCtx.fillRect(0, 0, width, height); - - maskCtx.restore(); - - var ctx = this.ctx; - for (var i = 0, ii = positions.length; i < ii; i += 2) { - ctx.save(); - ctx.transform(scaleX, 0, 0, scaleY, positions[i], positions[i + 1]); - ctx.scale(1, -1); - ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, - 0, -1, 1, 1); - ctx.restore(); - } - }, - - paintImageMaskXObjectGroup: - function CanvasGraphics_paintImageMaskXObjectGroup(images) { - var ctx = this.ctx; - - var fillColor = this.current.fillColor; - var isPatternFill = this.current.patternFill; - for (var i = 0, ii = images.length; i < ii; i++) { - var image = images[i]; - var width = image.width, height = image.height; - - var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', - width, height); - var maskCtx = maskCanvas.context; - maskCtx.save(); - - putBinaryImageMask(maskCtx, image); - - maskCtx.globalCompositeOperation = 'source-in'; - - maskCtx.fillStyle = isPatternFill ? - fillColor.getPattern(maskCtx, this) : fillColor; - maskCtx.fillRect(0, 0, width, height); - - maskCtx.restore(); - - ctx.save(); - ctx.transform.apply(ctx, image.transform); - ctx.scale(1, -1); - ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, - 0, -1, 1, 1); - ctx.restore(); - } - }, - - paintImageXObject: function CanvasGraphics_paintImageXObject(objId) { - var imgData = this.objs.get(objId); - if (!imgData) { - warn('Dependent image isn\'t ready yet'); - return; - } - - this.paintInlineImageXObject(imgData); - }, - - paintImageXObjectRepeat: - function CanvasGraphics_paintImageXObjectRepeat(objId, scaleX, scaleY, - positions) { - var imgData = this.objs.get(objId); - if (!imgData) { - warn('Dependent image isn\'t ready yet'); - return; - } - - var width = imgData.width; - var height = imgData.height; - var map = []; - for (var i = 0, ii = positions.length; i < ii; i += 2) { - map.push({transform: [scaleX, 0, 0, scaleY, positions[i], - positions[i + 1]], x: 0, y: 0, w: width, h: height}); - } - this.paintInlineImageXObjectGroup(imgData, map); - }, - - paintInlineImageXObject: - function CanvasGraphics_paintInlineImageXObject(imgData) { - var width = imgData.width; - var height = imgData.height; - var ctx = this.ctx; - - this.save(); - // scale the image to the unit square - ctx.scale(1 / width, -1 / height); - - var currentTransform = ctx.mozCurrentTransformInverse; - var a = currentTransform[0], b = currentTransform[1]; - var widthScale = Math.max(Math.sqrt(a * a + b * b), 1); - var c = currentTransform[2], d = currentTransform[3]; - var heightScale = Math.max(Math.sqrt(c * c + d * d), 1); - - var imgToPaint, tmpCanvas; - // instanceof HTMLElement does not work in jsdom node.js module - if (imgData instanceof HTMLElement || !imgData.data) { - imgToPaint = imgData; - } else { - tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', - width, height); - var tmpCtx = tmpCanvas.context; - putBinaryImageData(tmpCtx, imgData); - imgToPaint = tmpCanvas.canvas; - } - - var paintWidth = width, paintHeight = height; - var tmpCanvasId = 'prescale1'; - // Vertial or horizontal scaling shall not be more than 2 to not loose the - // pixels during drawImage operation, painting on the temporary canvas(es) - // that are twice smaller in size - while ((widthScale > 2 && paintWidth > 1) || - (heightScale > 2 && paintHeight > 1)) { - var newWidth = paintWidth, newHeight = paintHeight; - if (widthScale > 2 && paintWidth > 1) { - newWidth = Math.ceil(paintWidth / 2); - widthScale /= paintWidth / newWidth; - } - if (heightScale > 2 && paintHeight > 1) { - newHeight = Math.ceil(paintHeight / 2); - heightScale /= paintHeight / newHeight; - } - tmpCanvas = this.cachedCanvases.getCanvas(tmpCanvasId, - newWidth, newHeight); - tmpCtx = tmpCanvas.context; - tmpCtx.clearRect(0, 0, newWidth, newHeight); - tmpCtx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, - 0, 0, newWidth, newHeight); - imgToPaint = tmpCanvas.canvas; - paintWidth = newWidth; - paintHeight = newHeight; - tmpCanvasId = tmpCanvasId === 'prescale1' ? 'prescale2' : 'prescale1'; - } - ctx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, - 0, -height, width, height); - - if (this.imageLayer) { - var position = this.getCanvasPosition(0, -height); - this.imageLayer.appendImage({ - imgData: imgData, - left: position[0], - top: position[1], - width: width / currentTransform[0], - height: height / currentTransform[3] - }); - } - this.restore(); - }, - - paintInlineImageXObjectGroup: - function CanvasGraphics_paintInlineImageXObjectGroup(imgData, map) { - var ctx = this.ctx; - var w = imgData.width; - var h = imgData.height; - - var tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', w, h); - var tmpCtx = tmpCanvas.context; - putBinaryImageData(tmpCtx, imgData); - - for (var i = 0, ii = map.length; i < ii; i++) { - var entry = map[i]; - ctx.save(); - ctx.transform.apply(ctx, entry.transform); - ctx.scale(1, -1); - ctx.drawImage(tmpCanvas.canvas, entry.x, entry.y, entry.w, entry.h, - 0, -1, 1, 1); - if (this.imageLayer) { - var position = this.getCanvasPosition(entry.x, entry.y); - this.imageLayer.appendImage({ - imgData: imgData, - left: position[0], - top: position[1], - width: w, - height: h - }); - } - ctx.restore(); - } - }, - - paintSolidColorImageMask: - function CanvasGraphics_paintSolidColorImageMask() { - this.ctx.fillRect(0, 0, 1, 1); - }, - - paintXObject: function CanvasGraphics_paintXObject() { - warn('Unsupported \'paintXObject\' command.'); - }, - - // Marked content - - markPoint: function CanvasGraphics_markPoint(tag) { - // TODO Marked content. - }, - markPointProps: function CanvasGraphics_markPointProps(tag, properties) { - // TODO Marked content. - }, - beginMarkedContent: function CanvasGraphics_beginMarkedContent(tag) { - // TODO Marked content. - }, - beginMarkedContentProps: function CanvasGraphics_beginMarkedContentProps( - tag, properties) { - // TODO Marked content. - }, - endMarkedContent: function CanvasGraphics_endMarkedContent() { - // TODO Marked content. - }, - - // Compatibility - - beginCompat: function CanvasGraphics_beginCompat() { - // TODO ignore undefined operators (should we do that anyway?) - }, - endCompat: function CanvasGraphics_endCompat() { - // TODO stop ignoring undefined operators - }, - - // Helper functions - - consumePath: function CanvasGraphics_consumePath() { - var ctx = this.ctx; - if (this.pendingClip) { - if (this.pendingClip === EO_CLIP) { - if (ctx.mozFillRule !== undefined) { - ctx.mozFillRule = 'evenodd'; - ctx.clip(); - ctx.mozFillRule = 'nonzero'; - } else { - ctx.clip('evenodd'); - } - } else { - ctx.clip(); - } - this.pendingClip = null; - } - ctx.beginPath(); - }, - getSinglePixelWidth: function CanvasGraphics_getSinglePixelWidth(scale) { - if (this.cachedGetSinglePixelWidth === null) { - var inverse = this.ctx.mozCurrentTransformInverse; - // max of the current horizontal and vertical scale - this.cachedGetSinglePixelWidth = Math.sqrt(Math.max( - (inverse[0] * inverse[0] + inverse[1] * inverse[1]), - (inverse[2] * inverse[2] + inverse[3] * inverse[3]))); - } - return this.cachedGetSinglePixelWidth; - }, - getCanvasPosition: function CanvasGraphics_getCanvasPosition(x, y) { - var transform = this.ctx.mozCurrentTransform; - return [ - transform[0] * x + transform[2] * y + transform[4], - transform[1] * x + transform[3] * y + transform[5] - ]; - } - }; - - for (var op in OPS) { - CanvasGraphics.prototype[OPS[op]] = CanvasGraphics.prototype[op]; - } - - return CanvasGraphics; -})(); - - -var WebGLUtils = (function WebGLUtilsClosure() { - function loadShader(gl, code, shaderType) { - var shader = gl.createShader(shaderType); - gl.shaderSource(shader, code); - gl.compileShader(shader); - var compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS); - if (!compiled) { - var errorMsg = gl.getShaderInfoLog(shader); - throw new Error('Error during shader compilation: ' + errorMsg); - } - return shader; - } - function createVertexShader(gl, code) { - return loadShader(gl, code, gl.VERTEX_SHADER); - } - function createFragmentShader(gl, code) { - return loadShader(gl, code, gl.FRAGMENT_SHADER); - } - function createProgram(gl, shaders) { - var program = gl.createProgram(); - for (var i = 0, ii = shaders.length; i < ii; ++i) { - gl.attachShader(program, shaders[i]); - } - gl.linkProgram(program); - var linked = gl.getProgramParameter(program, gl.LINK_STATUS); - if (!linked) { - var errorMsg = gl.getProgramInfoLog(program); - throw new Error('Error during program linking: ' + errorMsg); - } - return program; - } - function createTexture(gl, image, textureId) { - gl.activeTexture(textureId); - var texture = gl.createTexture(); - gl.bindTexture(gl.TEXTURE_2D, texture); - - // Set the parameters so we can render any size image. - gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); - gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); - gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); - gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); - - // Upload the image into the texture. - gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, image); - return texture; - } - - var currentGL, currentCanvas; - function generateGL() { - if (currentGL) { - return; - } - currentCanvas = document.createElement('canvas'); - currentGL = currentCanvas.getContext('webgl', - { premultipliedalpha: false }); - } - - var smaskVertexShaderCode = '\ - attribute vec2 a_position; \ - attribute vec2 a_texCoord; \ - \ - uniform vec2 u_resolution; \ - \ - varying vec2 v_texCoord; \ - \ - void main() { \ - vec2 clipSpace = (a_position / u_resolution) * 2.0 - 1.0; \ - gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \ - \ - v_texCoord = a_texCoord; \ - } '; - - var smaskFragmentShaderCode = '\ - precision mediump float; \ - \ - uniform vec4 u_backdrop; \ - uniform int u_subtype; \ - uniform sampler2D u_image; \ - uniform sampler2D u_mask; \ - \ - varying vec2 v_texCoord; \ - \ - void main() { \ - vec4 imageColor = texture2D(u_image, v_texCoord); \ - vec4 maskColor = texture2D(u_mask, v_texCoord); \ - if (u_backdrop.a > 0.0) { \ - maskColor.rgb = maskColor.rgb * maskColor.a + \ - u_backdrop.rgb * (1.0 - maskColor.a); \ - } \ - float lum; \ - if (u_subtype == 0) { \ - lum = maskColor.a; \ - } else { \ - lum = maskColor.r * 0.3 + maskColor.g * 0.59 + \ - maskColor.b * 0.11; \ - } \ - imageColor.a *= lum; \ - imageColor.rgb *= imageColor.a; \ - gl_FragColor = imageColor; \ - } '; - - var smaskCache = null; - - function initSmaskGL() { - var canvas, gl; - - generateGL(); - canvas = currentCanvas; - currentCanvas = null; - gl = currentGL; - currentGL = null; - - // setup a GLSL program - var vertexShader = createVertexShader(gl, smaskVertexShaderCode); - var fragmentShader = createFragmentShader(gl, smaskFragmentShaderCode); - var program = createProgram(gl, [vertexShader, fragmentShader]); - gl.useProgram(program); - - var cache = {}; - cache.gl = gl; - cache.canvas = canvas; - cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution'); - cache.positionLocation = gl.getAttribLocation(program, 'a_position'); - cache.backdropLocation = gl.getUniformLocation(program, 'u_backdrop'); - cache.subtypeLocation = gl.getUniformLocation(program, 'u_subtype'); - - var texCoordLocation = gl.getAttribLocation(program, 'a_texCoord'); - var texLayerLocation = gl.getUniformLocation(program, 'u_image'); - var texMaskLocation = gl.getUniformLocation(program, 'u_mask'); - - // provide texture coordinates for the rectangle. - var texCoordBuffer = gl.createBuffer(); - gl.bindBuffer(gl.ARRAY_BUFFER, texCoordBuffer); - gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ - 0.0, 0.0, - 1.0, 0.0, - 0.0, 1.0, - 0.0, 1.0, - 1.0, 0.0, - 1.0, 1.0]), gl.STATIC_DRAW); - gl.enableVertexAttribArray(texCoordLocation); - gl.vertexAttribPointer(texCoordLocation, 2, gl.FLOAT, false, 0, 0); - - gl.uniform1i(texLayerLocation, 0); - gl.uniform1i(texMaskLocation, 1); - - smaskCache = cache; - } - - function composeSMask(layer, mask, properties) { - var width = layer.width, height = layer.height; - - if (!smaskCache) { - initSmaskGL(); - } - var cache = smaskCache,canvas = cache.canvas, gl = cache.gl; - canvas.width = width; - canvas.height = height; - gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight); - gl.uniform2f(cache.resolutionLocation, width, height); - - if (properties.backdrop) { - gl.uniform4f(cache.resolutionLocation, properties.backdrop[0], - properties.backdrop[1], properties.backdrop[2], 1); - } else { - gl.uniform4f(cache.resolutionLocation, 0, 0, 0, 0); - } - gl.uniform1i(cache.subtypeLocation, - properties.subtype === 'Luminosity' ? 1 : 0); - - // Create a textures - var texture = createTexture(gl, layer, gl.TEXTURE0); - var maskTexture = createTexture(gl, mask, gl.TEXTURE1); - - - // Create a buffer and put a single clipspace rectangle in - // it (2 triangles) - var buffer = gl.createBuffer(); - gl.bindBuffer(gl.ARRAY_BUFFER, buffer); - gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ - 0, 0, - width, 0, - 0, height, - 0, height, - width, 0, - width, height]), gl.STATIC_DRAW); - gl.enableVertexAttribArray(cache.positionLocation); - gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0); - - // draw - gl.clearColor(0, 0, 0, 0); - gl.enable(gl.BLEND); - gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA); - gl.clear(gl.COLOR_BUFFER_BIT); - - gl.drawArrays(gl.TRIANGLES, 0, 6); - - gl.flush(); - - gl.deleteTexture(texture); - gl.deleteTexture(maskTexture); - gl.deleteBuffer(buffer); - - return canvas; - } - - var figuresVertexShaderCode = '\ - attribute vec2 a_position; \ - attribute vec3 a_color; \ - \ - uniform vec2 u_resolution; \ - uniform vec2 u_scale; \ - uniform vec2 u_offset; \ - \ - varying vec4 v_color; \ - \ - void main() { \ - vec2 position = (a_position + u_offset) * u_scale; \ - vec2 clipSpace = (position / u_resolution) * 2.0 - 1.0; \ - gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1); \ - \ - v_color = vec4(a_color / 255.0, 1.0); \ - } '; - - var figuresFragmentShaderCode = '\ - precision mediump float; \ - \ - varying vec4 v_color; \ - \ - void main() { \ - gl_FragColor = v_color; \ - } '; - - var figuresCache = null; - - function initFiguresGL() { - var canvas, gl; - - generateGL(); - canvas = currentCanvas; - currentCanvas = null; - gl = currentGL; - currentGL = null; - - // setup a GLSL program - var vertexShader = createVertexShader(gl, figuresVertexShaderCode); - var fragmentShader = createFragmentShader(gl, figuresFragmentShaderCode); - var program = createProgram(gl, [vertexShader, fragmentShader]); - gl.useProgram(program); - - var cache = {}; - cache.gl = gl; - cache.canvas = canvas; - cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution'); - cache.scaleLocation = gl.getUniformLocation(program, 'u_scale'); - cache.offsetLocation = gl.getUniformLocation(program, 'u_offset'); - cache.positionLocation = gl.getAttribLocation(program, 'a_position'); - cache.colorLocation = gl.getAttribLocation(program, 'a_color'); - - figuresCache = cache; - } - - function drawFigures(width, height, backgroundColor, figures, context) { - if (!figuresCache) { - initFiguresGL(); - } - var cache = figuresCache, canvas = cache.canvas, gl = cache.gl; - - canvas.width = width; - canvas.height = height; - gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight); - gl.uniform2f(cache.resolutionLocation, width, height); - - // count triangle points - var count = 0; - var i, ii, rows; - for (i = 0, ii = figures.length; i < ii; i++) { - switch (figures[i].type) { - case 'lattice': - rows = (figures[i].coords.length / figures[i].verticesPerRow) | 0; - count += (rows - 1) * (figures[i].verticesPerRow - 1) * 6; - break; - case 'triangles': - count += figures[i].coords.length; - break; - } - } - // transfer data - var coords = new Float32Array(count * 2); - var colors = new Uint8Array(count * 3); - var coordsMap = context.coords, colorsMap = context.colors; - var pIndex = 0, cIndex = 0; - for (i = 0, ii = figures.length; i < ii; i++) { - var figure = figures[i], ps = figure.coords, cs = figure.colors; - switch (figure.type) { - case 'lattice': - var cols = figure.verticesPerRow; - rows = (ps.length / cols) | 0; - for (var row = 1; row < rows; row++) { - var offset = row * cols + 1; - for (var col = 1; col < cols; col++, offset++) { - coords[pIndex] = coordsMap[ps[offset - cols - 1]]; - coords[pIndex + 1] = coordsMap[ps[offset - cols - 1] + 1]; - coords[pIndex + 2] = coordsMap[ps[offset - cols]]; - coords[pIndex + 3] = coordsMap[ps[offset - cols] + 1]; - coords[pIndex + 4] = coordsMap[ps[offset - 1]]; - coords[pIndex + 5] = coordsMap[ps[offset - 1] + 1]; - colors[cIndex] = colorsMap[cs[offset - cols - 1]]; - colors[cIndex + 1] = colorsMap[cs[offset - cols - 1] + 1]; - colors[cIndex + 2] = colorsMap[cs[offset - cols - 1] + 2]; - colors[cIndex + 3] = colorsMap[cs[offset - cols]]; - colors[cIndex + 4] = colorsMap[cs[offset - cols] + 1]; - colors[cIndex + 5] = colorsMap[cs[offset - cols] + 2]; - colors[cIndex + 6] = colorsMap[cs[offset - 1]]; - colors[cIndex + 7] = colorsMap[cs[offset - 1] + 1]; - colors[cIndex + 8] = colorsMap[cs[offset - 1] + 2]; - - coords[pIndex + 6] = coords[pIndex + 2]; - coords[pIndex + 7] = coords[pIndex + 3]; - coords[pIndex + 8] = coords[pIndex + 4]; - coords[pIndex + 9] = coords[pIndex + 5]; - coords[pIndex + 10] = coordsMap[ps[offset]]; - coords[pIndex + 11] = coordsMap[ps[offset] + 1]; - colors[cIndex + 9] = colors[cIndex + 3]; - colors[cIndex + 10] = colors[cIndex + 4]; - colors[cIndex + 11] = colors[cIndex + 5]; - colors[cIndex + 12] = colors[cIndex + 6]; - colors[cIndex + 13] = colors[cIndex + 7]; - colors[cIndex + 14] = colors[cIndex + 8]; - colors[cIndex + 15] = colorsMap[cs[offset]]; - colors[cIndex + 16] = colorsMap[cs[offset] + 1]; - colors[cIndex + 17] = colorsMap[cs[offset] + 2]; - pIndex += 12; - cIndex += 18; - } - } - break; - case 'triangles': - for (var j = 0, jj = ps.length; j < jj; j++) { - coords[pIndex] = coordsMap[ps[j]]; - coords[pIndex + 1] = coordsMap[ps[j] + 1]; - colors[cIndex] = colorsMap[cs[j]]; - colors[cIndex + 1] = colorsMap[cs[j] + 1]; - colors[cIndex + 2] = colorsMap[cs[j] + 2]; - pIndex += 2; - cIndex += 3; - } - break; - } - } - - // draw - if (backgroundColor) { - gl.clearColor(backgroundColor[0] / 255, backgroundColor[1] / 255, - backgroundColor[2] / 255, 1.0); - } else { - gl.clearColor(0, 0, 0, 0); - } - gl.clear(gl.COLOR_BUFFER_BIT); - - var coordsBuffer = gl.createBuffer(); - gl.bindBuffer(gl.ARRAY_BUFFER, coordsBuffer); - gl.bufferData(gl.ARRAY_BUFFER, coords, gl.STATIC_DRAW); - gl.enableVertexAttribArray(cache.positionLocation); - gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0); - - var colorsBuffer = gl.createBuffer(); - gl.bindBuffer(gl.ARRAY_BUFFER, colorsBuffer); - gl.bufferData(gl.ARRAY_BUFFER, colors, gl.STATIC_DRAW); - gl.enableVertexAttribArray(cache.colorLocation); - gl.vertexAttribPointer(cache.colorLocation, 3, gl.UNSIGNED_BYTE, false, - 0, 0); - - gl.uniform2f(cache.scaleLocation, context.scaleX, context.scaleY); - gl.uniform2f(cache.offsetLocation, context.offsetX, context.offsetY); - - gl.drawArrays(gl.TRIANGLES, 0, count); - - gl.flush(); - - gl.deleteBuffer(coordsBuffer); - gl.deleteBuffer(colorsBuffer); - - return canvas; - } - - function cleanup() { - if (smaskCache && smaskCache.canvas) { - smaskCache.canvas.width = 0; - smaskCache.canvas.height = 0; - } - if (figuresCache && figuresCache.canvas) { - figuresCache.canvas.width = 0; - figuresCache.canvas.height = 0; - } - smaskCache = null; - figuresCache = null; - } - - return { - get isEnabled() { - if (PDFJS.disableWebGL) { - return false; - } - var enabled = false; - try { - generateGL(); - enabled = !!currentGL; - } catch (e) { } - return shadow(this, 'isEnabled', enabled); - }, - composeSMask: composeSMask, - drawFigures: drawFigures, - clear: cleanup - }; -})(); - - -var ShadingIRs = {}; - -ShadingIRs.RadialAxial = { - fromIR: function RadialAxial_fromIR(raw) { - var type = raw[1]; - var colorStops = raw[2]; - var p0 = raw[3]; - var p1 = raw[4]; - var r0 = raw[5]; - var r1 = raw[6]; - return { - type: 'Pattern', - getPattern: function RadialAxial_getPattern(ctx) { - var grad; - if (type === 'axial') { - grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]); - } else if (type === 'radial') { - grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1); - } - - for (var i = 0, ii = colorStops.length; i < ii; ++i) { - var c = colorStops[i]; - grad.addColorStop(c[0], c[1]); - } - return grad; - } - }; - } -}; - -var createMeshCanvas = (function createMeshCanvasClosure() { - function drawTriangle(data, context, p1, p2, p3, c1, c2, c3) { - // Very basic Gouraud-shaded triangle rasterization algorithm. - var coords = context.coords, colors = context.colors; - var bytes = data.data, rowSize = data.width * 4; - var tmp; - if (coords[p1 + 1] > coords[p2 + 1]) { - tmp = p1; p1 = p2; p2 = tmp; tmp = c1; c1 = c2; c2 = tmp; - } - if (coords[p2 + 1] > coords[p3 + 1]) { - tmp = p2; p2 = p3; p3 = tmp; tmp = c2; c2 = c3; c3 = tmp; - } - if (coords[p1 + 1] > coords[p2 + 1]) { - tmp = p1; p1 = p2; p2 = tmp; tmp = c1; c1 = c2; c2 = tmp; - } - var x1 = (coords[p1] + context.offsetX) * context.scaleX; - var y1 = (coords[p1 + 1] + context.offsetY) * context.scaleY; - var x2 = (coords[p2] + context.offsetX) * context.scaleX; - var y2 = (coords[p2 + 1] + context.offsetY) * context.scaleY; - var x3 = (coords[p3] + context.offsetX) * context.scaleX; - var y3 = (coords[p3 + 1] + context.offsetY) * context.scaleY; - if (y1 >= y3) { - return; - } - var c1r = colors[c1], c1g = colors[c1 + 1], c1b = colors[c1 + 2]; - var c2r = colors[c2], c2g = colors[c2 + 1], c2b = colors[c2 + 2]; - var c3r = colors[c3], c3g = colors[c3 + 1], c3b = colors[c3 + 2]; - - var minY = Math.round(y1), maxY = Math.round(y3); - var xa, car, cag, cab; - var xb, cbr, cbg, cbb; - var k; - for (var y = minY; y <= maxY; y++) { - if (y < y2) { - k = y < y1 ? 0 : y1 === y2 ? 1 : (y1 - y) / (y1 - y2); - xa = x1 - (x1 - x2) * k; - car = c1r - (c1r - c2r) * k; - cag = c1g - (c1g - c2g) * k; - cab = c1b - (c1b - c2b) * k; - } else { - k = y > y3 ? 1 : y2 === y3 ? 0 : (y2 - y) / (y2 - y3); - xa = x2 - (x2 - x3) * k; - car = c2r - (c2r - c3r) * k; - cag = c2g - (c2g - c3g) * k; - cab = c2b - (c2b - c3b) * k; - } - k = y < y1 ? 0 : y > y3 ? 1 : (y1 - y) / (y1 - y3); - xb = x1 - (x1 - x3) * k; - cbr = c1r - (c1r - c3r) * k; - cbg = c1g - (c1g - c3g) * k; - cbb = c1b - (c1b - c3b) * k; - var x1_ = Math.round(Math.min(xa, xb)); - var x2_ = Math.round(Math.max(xa, xb)); - var j = rowSize * y + x1_ * 4; - for (var x = x1_; x <= x2_; x++) { - k = (xa - x) / (xa - xb); - k = k < 0 ? 0 : k > 1 ? 1 : k; - bytes[j++] = (car - (car - cbr) * k) | 0; - bytes[j++] = (cag - (cag - cbg) * k) | 0; - bytes[j++] = (cab - (cab - cbb) * k) | 0; - bytes[j++] = 255; - } - } - } - - function drawFigure(data, figure, context) { - var ps = figure.coords; - var cs = figure.colors; - var i, ii; - switch (figure.type) { - case 'lattice': - var verticesPerRow = figure.verticesPerRow; - var rows = Math.floor(ps.length / verticesPerRow) - 1; - var cols = verticesPerRow - 1; - for (i = 0; i < rows; i++) { - var q = i * verticesPerRow; - for (var j = 0; j < cols; j++, q++) { - drawTriangle(data, context, - ps[q], ps[q + 1], ps[q + verticesPerRow], - cs[q], cs[q + 1], cs[q + verticesPerRow]); - drawTriangle(data, context, - ps[q + verticesPerRow + 1], ps[q + 1], ps[q + verticesPerRow], - cs[q + verticesPerRow + 1], cs[q + 1], cs[q + verticesPerRow]); - } - } - break; - case 'triangles': - for (i = 0, ii = ps.length; i < ii; i += 3) { - drawTriangle(data, context, - ps[i], ps[i + 1], ps[i + 2], - cs[i], cs[i + 1], cs[i + 2]); - } - break; - default: - error('illigal figure'); - break; - } - } - - function createMeshCanvas(bounds, combinesScale, coords, colors, figures, - backgroundColor, cachedCanvases) { - // we will increase scale on some weird factor to let antialiasing take - // care of "rough" edges - var EXPECTED_SCALE = 1.1; - // MAX_PATTERN_SIZE is used to avoid OOM situation. - var MAX_PATTERN_SIZE = 3000; // 10in @ 300dpi shall be enough - - var offsetX = Math.floor(bounds[0]); - var offsetY = Math.floor(bounds[1]); - var boundsWidth = Math.ceil(bounds[2]) - offsetX; - var boundsHeight = Math.ceil(bounds[3]) - offsetY; - - var width = Math.min(Math.ceil(Math.abs(boundsWidth * combinesScale[0] * - EXPECTED_SCALE)), MAX_PATTERN_SIZE); - var height = Math.min(Math.ceil(Math.abs(boundsHeight * combinesScale[1] * - EXPECTED_SCALE)), MAX_PATTERN_SIZE); - var scaleX = boundsWidth / width; - var scaleY = boundsHeight / height; - - var context = { - coords: coords, - colors: colors, - offsetX: -offsetX, - offsetY: -offsetY, - scaleX: 1 / scaleX, - scaleY: 1 / scaleY - }; - - var canvas, tmpCanvas, i, ii; - if (WebGLUtils.isEnabled) { - canvas = WebGLUtils.drawFigures(width, height, backgroundColor, - figures, context); - - // https://bugzilla.mozilla.org/show_bug.cgi?id=972126 - tmpCanvas = cachedCanvases.getCanvas('mesh', width, height, false); - tmpCanvas.context.drawImage(canvas, 0, 0); - canvas = tmpCanvas.canvas; - } else { - tmpCanvas = cachedCanvases.getCanvas('mesh', width, height, false); - var tmpCtx = tmpCanvas.context; - - var data = tmpCtx.createImageData(width, height); - if (backgroundColor) { - var bytes = data.data; - for (i = 0, ii = bytes.length; i < ii; i += 4) { - bytes[i] = backgroundColor[0]; - bytes[i + 1] = backgroundColor[1]; - bytes[i + 2] = backgroundColor[2]; - bytes[i + 3] = 255; - } - } - for (i = 0; i < figures.length; i++) { - drawFigure(data, figures[i], context); - } - tmpCtx.putImageData(data, 0, 0); - canvas = tmpCanvas.canvas; - } - - return {canvas: canvas, offsetX: offsetX, offsetY: offsetY, - scaleX: scaleX, scaleY: scaleY}; - } - return createMeshCanvas; -})(); - -ShadingIRs.Mesh = { - fromIR: function Mesh_fromIR(raw) { - //var type = raw[1]; - var coords = raw[2]; - var colors = raw[3]; - var figures = raw[4]; - var bounds = raw[5]; - var matrix = raw[6]; - //var bbox = raw[7]; - var background = raw[8]; - return { - type: 'Pattern', - getPattern: function Mesh_getPattern(ctx, owner, shadingFill) { - var scale; - if (shadingFill) { - scale = Util.singularValueDecompose2dScale(ctx.mozCurrentTransform); - } else { - // Obtain scale from matrix and current transformation matrix. - scale = Util.singularValueDecompose2dScale(owner.baseTransform); - if (matrix) { - var matrixScale = Util.singularValueDecompose2dScale(matrix); - scale = [scale[0] * matrixScale[0], - scale[1] * matrixScale[1]]; - } - } - - - // Rasterizing on the main thread since sending/queue large canvases - // might cause OOM. - var temporaryPatternCanvas = createMeshCanvas(bounds, scale, coords, - colors, figures, shadingFill ? null : background, - owner.cachedCanvases); - - if (!shadingFill) { - ctx.setTransform.apply(ctx, owner.baseTransform); - if (matrix) { - ctx.transform.apply(ctx, matrix); - } - } - - ctx.translate(temporaryPatternCanvas.offsetX, - temporaryPatternCanvas.offsetY); - ctx.scale(temporaryPatternCanvas.scaleX, - temporaryPatternCanvas.scaleY); - - return ctx.createPattern(temporaryPatternCanvas.canvas, 'no-repeat'); - } - }; - } -}; - -ShadingIRs.Dummy = { - fromIR: function Dummy_fromIR() { - return { - type: 'Pattern', - getPattern: function Dummy_fromIR_getPattern() { - return 'hotpink'; - } - }; - } -}; - -function getShadingPatternFromIR(raw) { - var shadingIR = ShadingIRs[raw[0]]; - if (!shadingIR) { - error('Unknown IR type: ' + raw[0]); - } - return shadingIR.fromIR(raw); -} - -var TilingPattern = (function TilingPatternClosure() { - var PaintType = { - COLORED: 1, - UNCOLORED: 2 - }; - - var MAX_PATTERN_SIZE = 3000; // 10in @ 300dpi shall be enough - - function TilingPattern(IR, color, ctx, objs, commonObjs, baseTransform) { - this.operatorList = IR[2]; - this.matrix = IR[3] || [1, 0, 0, 1, 0, 0]; - this.bbox = IR[4]; - this.xstep = IR[5]; - this.ystep = IR[6]; - this.paintType = IR[7]; - this.tilingType = IR[8]; - this.color = color; - this.objs = objs; - this.commonObjs = commonObjs; - this.baseTransform = baseTransform; - this.type = 'Pattern'; - this.ctx = ctx; - } - - TilingPattern.prototype = { - createPatternCanvas: function TilinPattern_createPatternCanvas(owner) { - var operatorList = this.operatorList; - var bbox = this.bbox; - var xstep = this.xstep; - var ystep = this.ystep; - var paintType = this.paintType; - var tilingType = this.tilingType; - var color = this.color; - var objs = this.objs; - var commonObjs = this.commonObjs; - - info('TilingType: ' + tilingType); - - var x0 = bbox[0], y0 = bbox[1], x1 = bbox[2], y1 = bbox[3]; - - var topLeft = [x0, y0]; - // we want the canvas to be as large as the step size - var botRight = [x0 + xstep, y0 + ystep]; - - var width = botRight[0] - topLeft[0]; - var height = botRight[1] - topLeft[1]; - - // Obtain scale from matrix and current transformation matrix. - var matrixScale = Util.singularValueDecompose2dScale(this.matrix); - var curMatrixScale = Util.singularValueDecompose2dScale( - this.baseTransform); - var combinedScale = [matrixScale[0] * curMatrixScale[0], - matrixScale[1] * curMatrixScale[1]]; - - // MAX_PATTERN_SIZE is used to avoid OOM situation. - // Use width and height values that are as close as possible to the end - // result when the pattern is used. Too low value makes the pattern look - // blurry. Too large value makes it look too crispy. - width = Math.min(Math.ceil(Math.abs(width * combinedScale[0])), - MAX_PATTERN_SIZE); - - height = Math.min(Math.ceil(Math.abs(height * combinedScale[1])), - MAX_PATTERN_SIZE); - - var tmpCanvas = owner.cachedCanvases.getCanvas('pattern', - width, height, true); - var tmpCtx = tmpCanvas.context; - var graphics = new CanvasGraphics(tmpCtx, commonObjs, objs); - graphics.groupLevel = owner.groupLevel; - - this.setFillAndStrokeStyleToContext(tmpCtx, paintType, color); - - this.setScale(width, height, xstep, ystep); - this.transformToScale(graphics); - - // transform coordinates to pattern space - var tmpTranslate = [1, 0, 0, 1, -topLeft[0], -topLeft[1]]; - graphics.transform.apply(graphics, tmpTranslate); - - this.clipBbox(graphics, bbox, x0, y0, x1, y1); - - graphics.executeOperatorList(operatorList); - return tmpCanvas.canvas; - }, - - setScale: function TilingPattern_setScale(width, height, xstep, ystep) { - this.scale = [width / xstep, height / ystep]; - }, - - transformToScale: function TilingPattern_transformToScale(graphics) { - var scale = this.scale; - var tmpScale = [scale[0], 0, 0, scale[1], 0, 0]; - graphics.transform.apply(graphics, tmpScale); - }, - - scaleToContext: function TilingPattern_scaleToContext() { - var scale = this.scale; - this.ctx.scale(1 / scale[0], 1 / scale[1]); - }, - - clipBbox: function clipBbox(graphics, bbox, x0, y0, x1, y1) { - if (bbox && isArray(bbox) && bbox.length === 4) { - var bboxWidth = x1 - x0; - var bboxHeight = y1 - y0; - graphics.ctx.rect(x0, y0, bboxWidth, bboxHeight); - graphics.clip(); - graphics.endPath(); - } - }, - - setFillAndStrokeStyleToContext: - function setFillAndStrokeStyleToContext(context, paintType, color) { - switch (paintType) { - case PaintType.COLORED: - var ctx = this.ctx; - context.fillStyle = ctx.fillStyle; - context.strokeStyle = ctx.strokeStyle; - break; - case PaintType.UNCOLORED: - var cssColor = Util.makeCssRgb(color[0], color[1], color[2]); - context.fillStyle = cssColor; - context.strokeStyle = cssColor; - break; - default: - error('Unsupported paint type: ' + paintType); - } - }, - - getPattern: function TilingPattern_getPattern(ctx, owner) { - var temporaryPatternCanvas = this.createPatternCanvas(owner); - - ctx = this.ctx; - ctx.setTransform.apply(ctx, this.baseTransform); - ctx.transform.apply(ctx, this.matrix); - this.scaleToContext(); - - return ctx.createPattern(temporaryPatternCanvas, 'repeat'); - } - }; - - return TilingPattern; -})(); - - -function FontLoader(docId) { - this.docId = docId; - this.styleElement = null; -} -FontLoader.prototype = { - insertRule: function fontLoaderInsertRule(rule) { - var styleElement = this.styleElement; - if (!styleElement) { - styleElement = this.styleElement = document.createElement('style'); - styleElement.id = 'PDFJS_FONT_STYLE_TAG_' + this.docId; - document.documentElement.getElementsByTagName('head')[0].appendChild( - styleElement); - } - - var styleSheet = styleElement.sheet; - styleSheet.insertRule(rule, styleSheet.cssRules.length); - }, - - clear: function fontLoaderClear() { - var styleElement = this.styleElement; - if (styleElement) { - styleElement.parentNode.removeChild(styleElement); - styleElement = this.styleElement = null; - } - }, - bind: function fontLoaderBind(fonts, callback) { - assert(!isWorker, 'bind() shall be called from main thread'); - - for (var i = 0, ii = fonts.length; i < ii; i++) { - var font = fonts[i]; - if (font.attached) { - continue; - } - - font.attached = true; - var rule = font.createFontFaceRule(); - if (rule) { - this.insertRule(rule); - } - } - - setTimeout(callback); - } -}; - -var FontFaceObject = (function FontFaceObjectClosure() { - function FontFaceObject(translatedData) { - this.compiledGlyphs = {}; - // importing translated data - for (var i in translatedData) { - this[i] = translatedData[i]; - } - } - Object.defineProperty(FontFaceObject, 'isEvalSupported', { - get: function () { - var evalSupport = false; - if (PDFJS.isEvalSupported) { - try { - /* jshint evil: true */ - new Function(''); - evalSupport = true; - } catch (e) {} - } - return shadow(this, 'isEvalSupported', evalSupport); - }, - enumerable: true, - configurable: true - }); - FontFaceObject.prototype = { - - createFontFaceRule: function FontFaceObject_createFontFaceRule() { - if (!this.data) { - return null; - } - - if (PDFJS.disableFontFace) { - this.disableFontFace = true; - return null; - } - - var data = bytesToString(new Uint8Array(this.data)); - var fontName = this.loadedName; - - // Add the font-face rule to the document - var url = ('url(data:' + this.mimetype + ';base64,' + - window.btoa(data) + ');'); - var rule = '@font-face { font-family:"' + fontName + '";src:' + url + '}'; - - if (PDFJS.pdfBug && 'FontInspector' in globalScope && - globalScope['FontInspector'].enabled) { - globalScope['FontInspector'].fontAdded(this, url); - } - - return rule; - }, - - getPathGenerator: - function FontFaceObject_getPathGenerator(objs, character) { - if (!(character in this.compiledGlyphs)) { - var cmds = objs.get(this.loadedName + '_path_' + character); - var current, i, len; - - // If we can, compile cmds into JS for MAXIMUM SPEED - if (FontFaceObject.isEvalSupported) { - var args, js = ''; - for (i = 0, len = cmds.length; i < len; i++) { - current = cmds[i]; - - if (current.args !== undefined) { - args = current.args.join(','); - } else { - args = ''; - } - - js += 'c.' + current.cmd + '(' + args + ');\n'; - } - /* jshint -W054 */ - this.compiledGlyphs[character] = new Function('c', 'size', js); - } else { - // But fall back on using Function.prototype.apply() if we're - // blocked from using eval() for whatever reason (like CSP policies) - this.compiledGlyphs[character] = function(c, size) { - for (i = 0, len = cmds.length; i < len; i++) { - current = cmds[i]; - - if (current.cmd === 'scale') { - current.args = [size, -size]; - } - - c[current.cmd].apply(c, current.args); - } - }; - } - } - return this.compiledGlyphs[character]; - } - }; - return FontFaceObject; -})(); - - -/** - * Optimised CSS custom property getter/setter. - * @class - */ -var CustomStyle = (function CustomStyleClosure() { - - // As noted on: http://www.zachstronaut.com/posts/2009/02/17/ - // animate-css-transforms-firefox-webkit.html - // in some versions of IE9 it is critical that ms appear in this list - // before Moz - var prefixes = ['ms', 'Moz', 'Webkit', 'O']; - var _cache = {}; - - function CustomStyle() {} - - CustomStyle.getProp = function get(propName, element) { - // check cache only when no element is given - if (arguments.length === 1 && typeof _cache[propName] === 'string') { - return _cache[propName]; - } - - element = element || document.documentElement; - var style = element.style, prefixed, uPropName; - - // test standard property first - if (typeof style[propName] === 'string') { - return (_cache[propName] = propName); - } - - // capitalize - uPropName = propName.charAt(0).toUpperCase() + propName.slice(1); - - // test vendor specific properties - for (var i = 0, l = prefixes.length; i < l; i++) { - prefixed = prefixes[i] + uPropName; - if (typeof style[prefixed] === 'string') { - return (_cache[propName] = prefixed); - } - } - - //if all fails then set to undefined - return (_cache[propName] = 'undefined'); - }; - - CustomStyle.setProp = function set(propName, element, str) { - var prop = this.getProp(propName); - if (prop !== 'undefined') { - element.style[prop] = str; - } - }; - - return CustomStyle; -})(); - -PDFJS.CustomStyle = CustomStyle; - - -var ANNOT_MIN_SIZE = 10; // px - -var AnnotationUtils = (function AnnotationUtilsClosure() { - // TODO(mack): This dupes some of the logic in CanvasGraphics.setFont() - function setTextStyles(element, item, fontObj) { - - var style = element.style; - style.fontSize = item.fontSize + 'px'; - style.direction = item.fontDirection < 0 ? 'rtl': 'ltr'; - - if (!fontObj) { - return; - } - - style.fontWeight = fontObj.black ? - (fontObj.bold ? 'bolder' : 'bold') : - (fontObj.bold ? 'bold' : 'normal'); - style.fontStyle = fontObj.italic ? 'italic' : 'normal'; - - var fontName = fontObj.loadedName; - var fontFamily = fontName ? '"' + fontName + '", ' : ''; - // Use a reasonable default font if the font doesn't specify a fallback - var fallbackName = fontObj.fallbackName || 'Helvetica, sans-serif'; - style.fontFamily = fontFamily + fallbackName; - } - - function initContainer(item) { - var container = document.createElement('section'); - var cstyle = container.style; - var width = item.rect[2] - item.rect[0]; - var height = item.rect[3] - item.rect[1]; - - // Border - if (item.borderStyle.width > 0) { - // Border width - container.style.borderWidth = item.borderStyle.width + 'px'; - if (item.borderStyle.style !== AnnotationBorderStyleType.UNDERLINE) { - // Underline styles only have a bottom border, so we do not need - // to adjust for all borders. This yields a similar result as - // Adobe Acrobat/Reader. - width = width - 2 * item.borderStyle.width; - height = height - 2 * item.borderStyle.width; - } - - // Horizontal and vertical border radius - var horizontalRadius = item.borderStyle.horizontalCornerRadius; - var verticalRadius = item.borderStyle.verticalCornerRadius; - if (horizontalRadius > 0 || verticalRadius > 0) { - var radius = horizontalRadius + 'px / ' + verticalRadius + 'px'; - CustomStyle.setProp('borderRadius', container, radius); - } - - // Border style - switch (item.borderStyle.style) { - case AnnotationBorderStyleType.SOLID: - container.style.borderStyle = 'solid'; - break; - - case AnnotationBorderStyleType.DASHED: - container.style.borderStyle = 'dashed'; - break; - - case AnnotationBorderStyleType.BEVELED: - warn('Unimplemented border style: beveled'); - break; - - case AnnotationBorderStyleType.INSET: - warn('Unimplemented border style: inset'); - break; - - case AnnotationBorderStyleType.UNDERLINE: - container.style.borderBottomStyle = 'solid'; - break; - - default: - break; - } - - // Border color - if (item.color) { - container.style.borderColor = - Util.makeCssRgb(item.color[0] | 0, - item.color[1] | 0, - item.color[2] | 0); - } else { - // Transparent (invisible) border, so do not draw it at all. - container.style.borderWidth = 0; - } - } - - cstyle.width = width + 'px'; - cstyle.height = height + 'px'; - return container; - } - - function getHtmlElementForTextWidgetAnnotation(item, commonObjs) { - var element = document.createElement('div'); - var width = item.rect[2] - item.rect[0]; - var height = item.rect[3] - item.rect[1]; - element.style.width = width + 'px'; - element.style.height = height + 'px'; - element.style.display = 'table'; - - var content = document.createElement('div'); - content.textContent = item.fieldValue; - var textAlignment = item.textAlignment; - content.style.textAlign = ['left', 'center', 'right'][textAlignment]; - content.style.verticalAlign = 'middle'; - content.style.display = 'table-cell'; - - var fontObj = item.fontRefName ? - commonObjs.getData(item.fontRefName) : null; - setTextStyles(content, item, fontObj); - - element.appendChild(content); - - return element; - } - - function getHtmlElementForTextAnnotation(item) { - var rect = item.rect; - - // sanity check because of OOo-generated PDFs - if ((rect[3] - rect[1]) < ANNOT_MIN_SIZE) { - rect[3] = rect[1] + ANNOT_MIN_SIZE; - } - if ((rect[2] - rect[0]) < ANNOT_MIN_SIZE) { - rect[2] = rect[0] + (rect[3] - rect[1]); // make it square - } - - var container = initContainer(item); - container.className = 'annotText'; - - var image = document.createElement('img'); - image.style.height = container.style.height; - image.style.width = container.style.width; - var iconName = item.name; - image.src = PDFJS.imageResourcesPath + 'annotation-' + - iconName.toLowerCase() + '.svg'; - image.alt = '[{{type}} Annotation]'; - image.dataset.l10nId = 'text_annotation_type'; - image.dataset.l10nArgs = JSON.stringify({type: iconName}); - - var contentWrapper = document.createElement('div'); - contentWrapper.className = 'annotTextContentWrapper'; - contentWrapper.style.left = Math.floor(rect[2] - rect[0] + 5) + 'px'; - contentWrapper.style.top = '-10px'; - - var content = document.createElement('div'); - content.className = 'annotTextContent'; - content.setAttribute('hidden', true); - - var i, ii; - if (item.hasBgColor && item.color) { - var color = item.color; - - // Enlighten the color (70%) - var BACKGROUND_ENLIGHT = 0.7; - var r = BACKGROUND_ENLIGHT * (255 - color[0]) + color[0]; - var g = BACKGROUND_ENLIGHT * (255 - color[1]) + color[1]; - var b = BACKGROUND_ENLIGHT * (255 - color[2]) + color[2]; - content.style.backgroundColor = Util.makeCssRgb(r | 0, g | 0, b | 0); - } - - var title = document.createElement('h1'); - var text = document.createElement('p'); - title.textContent = item.title; - - if (!item.content && !item.title) { - content.setAttribute('hidden', true); - } else { - var e = document.createElement('span'); - var lines = item.content.split(/(?:\r\n?|\n)/); - for (i = 0, ii = lines.length; i < ii; ++i) { - var line = lines[i]; - e.appendChild(document.createTextNode(line)); - if (i < (ii - 1)) { - e.appendChild(document.createElement('br')); - } - } - text.appendChild(e); - - var pinned = false; - - var showAnnotation = function showAnnotation(pin) { - if (pin) { - pinned = true; - } - if (content.hasAttribute('hidden')) { - container.style.zIndex += 1; - content.removeAttribute('hidden'); - } - }; - - var hideAnnotation = function hideAnnotation(unpin) { - if (unpin) { - pinned = false; - } - if (!content.hasAttribute('hidden') && !pinned) { - container.style.zIndex -= 1; - content.setAttribute('hidden', true); - } - }; - - var toggleAnnotation = function toggleAnnotation() { - if (pinned) { - hideAnnotation(true); - } else { - showAnnotation(true); - } - }; - - image.addEventListener('click', function image_clickHandler() { - toggleAnnotation(); - }, false); - image.addEventListener('mouseover', function image_mouseOverHandler() { - showAnnotation(); - }, false); - image.addEventListener('mouseout', function image_mouseOutHandler() { - hideAnnotation(); - }, false); - - content.addEventListener('click', function content_clickHandler() { - hideAnnotation(true); - }, false); - } - - content.appendChild(title); - content.appendChild(text); - contentWrapper.appendChild(content); - container.appendChild(image); - container.appendChild(contentWrapper); - - return container; - } - - function getHtmlElementForLinkAnnotation(item) { - var container = initContainer(item); - container.className = 'annotLink'; - - var link = document.createElement('a'); - link.href = link.title = item.url || ''; - - if (item.url && isExternalLinkTargetSet()) { - link.target = LinkTargetStringMap[PDFJS.externalLinkTarget]; - } - - container.appendChild(link); - - return container; - } - - function getHtmlElement(data, objs) { - switch (data.annotationType) { - case AnnotationType.WIDGET: - return getHtmlElementForTextWidgetAnnotation(data, objs); - case AnnotationType.TEXT: - return getHtmlElementForTextAnnotation(data); - case AnnotationType.LINK: - return getHtmlElementForLinkAnnotation(data); - default: - throw new Error('Unsupported annotationType: ' + data.annotationType); - } - } - - return { - getHtmlElement: getHtmlElement - }; -})(); -PDFJS.AnnotationUtils = AnnotationUtils; - - -/** - * Text layer render parameters. - * - * @typedef {Object} TextLayerRenderParameters - * @property {TextContent} textContent - Text content to render (the object is - * returned by the page's getTextContent() method). - * @property {HTMLElement} container - HTML element that will contain text runs. - * @property {PDFJS.PageViewport} viewport - The target viewport to properly - * layout the text runs. - * @property {Array} textDivs - (optional) HTML elements that are correspond - * the text items of the textContent input. This is output and shall be - * initially be set to empty array. - * @property {number} timeout - (optional) Delay in milliseconds before - * rendering of the text runs occurs. - */ -var renderTextLayer = (function renderTextLayerClosure() { - var MAX_TEXT_DIVS_TO_RENDER = 100000; - - var NonWhitespaceRegexp = /\S/; - - function isAllWhitespace(str) { - return !NonWhitespaceRegexp.test(str); - } - - function appendText(textDivs, viewport, geom, styles) { - var style = styles[geom.fontName]; - var textDiv = document.createElement('div'); - textDivs.push(textDiv); - if (isAllWhitespace(geom.str)) { - textDiv.dataset.isWhitespace = true; - return; - } - var tx = PDFJS.Util.transform(viewport.transform, geom.transform); - var angle = Math.atan2(tx[1], tx[0]); - if (style.vertical) { - angle += Math.PI / 2; - } - var fontHeight = Math.sqrt((tx[2] * tx[2]) + (tx[3] * tx[3])); - var fontAscent = fontHeight; - if (style.ascent) { - fontAscent = style.ascent * fontAscent; - } else if (style.descent) { - fontAscent = (1 + style.descent) * fontAscent; - } - - var left; - var top; - if (angle === 0) { - left = tx[4]; - top = tx[5] - fontAscent; - } else { - left = tx[4] + (fontAscent * Math.sin(angle)); - top = tx[5] - (fontAscent * Math.cos(angle)); - } - textDiv.style.left = left + 'px'; - textDiv.style.top = top + 'px'; - textDiv.style.fontSize = fontHeight + 'px'; - textDiv.style.fontFamily = style.fontFamily; - - textDiv.textContent = geom.str; - // |fontName| is only used by the Font Inspector. This test will succeed - // when e.g. the Font Inspector is off but the Stepper is on, but it's - // not worth the effort to do a more accurate test. - if (PDFJS.pdfBug) { - textDiv.dataset.fontName = geom.fontName; - } - // Storing into dataset will convert number into string. - if (angle !== 0) { - textDiv.dataset.angle = angle * (180 / Math.PI); - } - // We don't bother scaling single-char text divs, because it has very - // little effect on text highlighting. This makes scrolling on docs with - // lots of such divs a lot faster. - if (geom.str.length > 1) { - if (style.vertical) { - textDiv.dataset.canvasWidth = geom.height * viewport.scale; - } else { - textDiv.dataset.canvasWidth = geom.width * viewport.scale; - } - } - } - - function render(task) { - if (task._canceled) { - return; - } - var textLayerFrag = task._container; - var textDivs = task._textDivs; - var capability = task._capability; - var textDivsLength = textDivs.length; - - // No point in rendering many divs as it would make the browser - // unusable even after the divs are rendered. - if (textDivsLength > MAX_TEXT_DIVS_TO_RENDER) { - capability.resolve(); - return; - } - - var canvas = document.createElement('canvas'); - canvas.mozOpaque = true; - var ctx = canvas.getContext('2d', {alpha: false}); - - var lastFontSize; - var lastFontFamily; - for (var i = 0; i < textDivsLength; i++) { - var textDiv = textDivs[i]; - if (textDiv.dataset.isWhitespace !== undefined) { - continue; - } - - var fontSize = textDiv.style.fontSize; - var fontFamily = textDiv.style.fontFamily; - - // Only build font string and set to context if different from last. - if (fontSize !== lastFontSize || fontFamily !== lastFontFamily) { - ctx.font = fontSize + ' ' + fontFamily; - lastFontSize = fontSize; - lastFontFamily = fontFamily; - } - - var width = ctx.measureText(textDiv.textContent).width; - if (width > 0) { - textLayerFrag.appendChild(textDiv); - var transform; - if (textDiv.dataset.canvasWidth !== undefined) { - // Dataset values come of type string. - var textScale = textDiv.dataset.canvasWidth / width; - transform = 'scaleX(' + textScale + ')'; - } else { - transform = ''; - } - var rotation = textDiv.dataset.angle; - if (rotation) { - transform = 'rotate(' + rotation + 'deg) ' + transform; - } - if (transform) { - PDFJS.CustomStyle.setProp('transform' , textDiv, transform); - } - } - } - capability.resolve(); - } - - /** - * Text layer rendering task. - * - * @param {TextContent} textContent - * @param {HTMLElement} container - * @param {PDFJS.PageViewport} viewport - * @param {Array} textDivs - * @private - */ - function TextLayerRenderTask(textContent, container, viewport, textDivs) { - this._textContent = textContent; - this._container = container; - this._viewport = viewport; - textDivs = textDivs || []; - this._textDivs = textDivs; - this._canceled = false; - this._capability = createPromiseCapability(); - this._renderTimer = null; - } - TextLayerRenderTask.prototype = { - get promise() { - return this._capability.promise; - }, - - cancel: function TextLayer_cancel() { - this._canceled = true; - if (this._renderTimer !== null) { - clearTimeout(this._renderTimer); - this._renderTimer = null; - } - this._capability.reject('canceled'); - }, - - _render: function TextLayer_render(timeout) { - var textItems = this._textContent.items; - var styles = this._textContent.styles; - var textDivs = this._textDivs; - var viewport = this._viewport; - for (var i = 0, len = textItems.length; i < len; i++) { - appendText(textDivs, viewport, textItems[i], styles); - } - - if (!timeout) { // Render right away - render(this); - } else { // Schedule - var self = this; - this._renderTimer = setTimeout(function() { - render(self); - self._renderTimer = null; - }, timeout); - } - } - }; - - - /** - * Starts rendering of the text layer. - * - * @param {TextLayerRenderParameters} renderParameters - * @returns {TextLayerRenderTask} - */ - function renderTextLayer(renderParameters) { - var task = new TextLayerRenderTask(renderParameters.textContent, - renderParameters.container, - renderParameters.viewport, - renderParameters.textDivs); - task._render(renderParameters.timeout); - return task; - } - - return renderTextLayer; -})(); - -PDFJS.renderTextLayer = renderTextLayer; - - +}(this, function (exports, sharedUtil) { +})); }).call((typeof window === 'undefined') ? this : window); diff --git a/browser/extensions/pdfjs/content/build/pdf.worker.js b/browser/extensions/pdfjs/content/build/pdf.worker.js index 44203ff78b7..1dd2ca8c102 100644 --- a/browser/extensions/pdfjs/content/build/pdf.worker.js +++ b/browser/extensions/pdfjs/content/build/pdf.worker.js @@ -20,8 +20,8 @@ if (typeof PDFJS === 'undefined') { (typeof window !== 'undefined' ? window : this).PDFJS = {}; } -PDFJS.version = '1.3.76'; -PDFJS.build = 'f7ec866'; +PDFJS.version = '1.3.110'; +PDFJS.build = '42beb0c'; (function pdfjsWrapper() { // Use strict in our context only - users might not want it @@ -29,9 +29,41 @@ PDFJS.build = 'f7ec866'; -var globalScope = (typeof window === 'undefined') ? this : window; +(function (root, factory) { + { + factory((root.pdfjsSharedGlobal = {})); + } +}(this, function (exports) { -var isWorker = (typeof window === 'undefined'); + var globalScope = (typeof window !== 'undefined') ? window : + (typeof global !== 'undefined') ? global : + (typeof self !== 'undefined') ? self : this; + + var isWorker = (typeof window === 'undefined'); + + // The global PDFJS object exposes the API + // In production, it will be declared outside a global wrapper + // In development, it will be declared here + if (!globalScope.PDFJS) { + globalScope.PDFJS = {}; + } + + globalScope.PDFJS.pdfBug = false; + + exports.globalScope = globalScope; + exports.isWorker = isWorker; + exports.PDFJS = globalScope.PDFJS; +})); + + +(function (root, factory) { + { + factory((root.pdfjsSharedUtil = {}), root.pdfjsSharedGlobal); + } +}(this, function (exports, sharedGlobal) { + +var PDFJS = sharedGlobal.PDFJS; +var globalScope = sharedGlobal.globalScope; var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0]; @@ -55,9 +87,32 @@ var ImageKind = { }; var AnnotationType = { - WIDGET: 1, - TEXT: 2, - LINK: 3 + TEXT: 1, + LINK: 2, + FREETEXT: 3, + LINE: 4, + SQUARE: 5, + CIRCLE: 6, + POLYGON: 7, + POLYLINE: 8, + HIGHLIGHT: 9, + UNDERLINE: 10, + SQUIGGLY: 11, + STRIKEOUT: 12, + STAMP: 13, + CARET: 14, + INK: 15, + POPUP: 16, + FILEATTACHMENT: 17, + SOUND: 18, + MOVIE: 19, + WIDGET: 20, + SCREEN: 21, + PRINTERMARK: 22, + TRAPNET: 23, + WATERMARK: 24, + THREED: 25, + REDACT: 26 }; var AnnotationFlag = { @@ -108,15 +163,6 @@ var FontType = { MMTYPE1: 10 }; -// The global PDFJS object exposes the API -// In production, it will be declared outside a global wrapper -// In development, it will be declared here -if (!globalScope.PDFJS) { - globalScope.PDFJS = {}; -} - -globalScope.PDFJS.pdfBug = false; - PDFJS.VERBOSITY_LEVELS = { errors: 0, warnings: 1, @@ -966,41 +1012,14 @@ function isString(v) { return typeof v === 'string'; } -function isName(v) { - return v instanceof Name; -} - -function isCmd(v, cmd) { - return v instanceof Cmd && (cmd === undefined || v.cmd === cmd); -} - -function isDict(v, type) { - if (!(v instanceof Dict)) { - return false; - } - if (!type) { - return true; - } - var dictType = v.get('Type'); - return isName(dictType) && dictType.name === type; -} - function isArray(v) { return v instanceof Array; } -function isStream(v) { - return typeof v === 'object' && v !== null && v.getBytes !== undefined; -} - function isArrayBuffer(v) { return typeof v === 'object' && v !== null && v.byteLength !== undefined; } -function isRef(v) { - return v instanceof Ref; -} - /** * Promise Capability object. * @@ -1328,6 +1347,9180 @@ function loadJpegStream(id, imageUrl, objs) { img.src = imageUrl; } +exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX; +exports.IDENTITY_MATRIX = IDENTITY_MATRIX; +exports.OPS = OPS; +exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES; +exports.AnnotationBorderStyleType = AnnotationBorderStyleType; +exports.AnnotationFlag = AnnotationFlag; +exports.AnnotationType = AnnotationType; +exports.FontType = FontType; +exports.ImageKind = ImageKind; +exports.InvalidPDFException = InvalidPDFException; +exports.LinkTarget = LinkTarget; +exports.LinkTargetStringMap = LinkTargetStringMap; +exports.MessageHandler = MessageHandler; +exports.MissingDataException = MissingDataException; +exports.MissingPDFException = MissingPDFException; +exports.NotImplementedException = NotImplementedException; +exports.PasswordException = PasswordException; +exports.PasswordResponses = PasswordResponses; +exports.StatTimer = StatTimer; +exports.StreamType = StreamType; +exports.TextRenderingMode = TextRenderingMode; +exports.UnexpectedResponseException = UnexpectedResponseException; +exports.UnknownErrorException = UnknownErrorException; +exports.Util = Util; +exports.XRefParseException = XRefParseException; +exports.assert = assert; +exports.bytesToString = bytesToString; +exports.combineUrl = combineUrl; +exports.createPromiseCapability = createPromiseCapability; +exports.deprecated = deprecated; +exports.error = error; +exports.info = info; +exports.isArray = isArray; +exports.isArrayBuffer = isArrayBuffer; +exports.isBool = isBool; +exports.isEmptyObj = isEmptyObj; +exports.isExternalLinkTargetSet = isExternalLinkTargetSet; +exports.isInt = isInt; +exports.isNum = isNum; +exports.isString = isString; +exports.isValidUrl = isValidUrl; +exports.loadJpegStream = loadJpegStream; +exports.log2 = log2; +exports.readInt8 = readInt8; +exports.readUint16 = readUint16; +exports.readUint32 = readUint32; +exports.shadow = shadow; +exports.string32 = string32; +exports.stringToBytes = stringToBytes; +exports.stringToPDFString = stringToPDFString; +exports.stringToUTF8String = stringToUTF8String; +exports.utf8StringToString = utf8StringToString; +exports.warn = warn; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreArithmeticDecoder = {})); + } +}(this, function (exports) { + +/* This class implements the QM Coder decoding as defined in + * JPEG 2000 Part I Final Committee Draft Version 1.0 + * Annex C.3 Arithmetic decoding procedure + * available at http://www.jpeg.org/public/fcd15444-1.pdf + * + * The arithmetic decoder is used in conjunction with context models to decode + * JPEG2000 and JBIG2 streams. + */ +var ArithmeticDecoder = (function ArithmeticDecoderClosure() { + // Table C-2 + var QeTable = [ + {qe: 0x5601, nmps: 1, nlps: 1, switchFlag: 1}, + {qe: 0x3401, nmps: 2, nlps: 6, switchFlag: 0}, + {qe: 0x1801, nmps: 3, nlps: 9, switchFlag: 0}, + {qe: 0x0AC1, nmps: 4, nlps: 12, switchFlag: 0}, + {qe: 0x0521, nmps: 5, nlps: 29, switchFlag: 0}, + {qe: 0x0221, nmps: 38, nlps: 33, switchFlag: 0}, + {qe: 0x5601, nmps: 7, nlps: 6, switchFlag: 1}, + {qe: 0x5401, nmps: 8, nlps: 14, switchFlag: 0}, + {qe: 0x4801, nmps: 9, nlps: 14, switchFlag: 0}, + {qe: 0x3801, nmps: 10, nlps: 14, switchFlag: 0}, + {qe: 0x3001, nmps: 11, nlps: 17, switchFlag: 0}, + {qe: 0x2401, nmps: 12, nlps: 18, switchFlag: 0}, + {qe: 0x1C01, nmps: 13, nlps: 20, switchFlag: 0}, + {qe: 0x1601, nmps: 29, nlps: 21, switchFlag: 0}, + {qe: 0x5601, nmps: 15, nlps: 14, switchFlag: 1}, + {qe: 0x5401, nmps: 16, nlps: 14, switchFlag: 0}, + {qe: 0x5101, nmps: 17, nlps: 15, switchFlag: 0}, + {qe: 0x4801, nmps: 18, nlps: 16, switchFlag: 0}, + {qe: 0x3801, nmps: 19, nlps: 17, switchFlag: 0}, + {qe: 0x3401, nmps: 20, nlps: 18, switchFlag: 0}, + {qe: 0x3001, nmps: 21, nlps: 19, switchFlag: 0}, + {qe: 0x2801, nmps: 22, nlps: 19, switchFlag: 0}, + {qe: 0x2401, nmps: 23, nlps: 20, switchFlag: 0}, + {qe: 0x2201, nmps: 24, nlps: 21, switchFlag: 0}, + {qe: 0x1C01, nmps: 25, nlps: 22, switchFlag: 0}, + {qe: 0x1801, nmps: 26, nlps: 23, switchFlag: 0}, + {qe: 0x1601, nmps: 27, nlps: 24, switchFlag: 0}, + {qe: 0x1401, nmps: 28, nlps: 25, switchFlag: 0}, + {qe: 0x1201, nmps: 29, nlps: 26, switchFlag: 0}, + {qe: 0x1101, nmps: 30, nlps: 27, switchFlag: 0}, + {qe: 0x0AC1, nmps: 31, nlps: 28, switchFlag: 0}, + {qe: 0x09C1, nmps: 32, nlps: 29, switchFlag: 0}, + {qe: 0x08A1, nmps: 33, nlps: 30, switchFlag: 0}, + {qe: 0x0521, nmps: 34, nlps: 31, switchFlag: 0}, + {qe: 0x0441, nmps: 35, nlps: 32, switchFlag: 0}, + {qe: 0x02A1, nmps: 36, nlps: 33, switchFlag: 0}, + {qe: 0x0221, nmps: 37, nlps: 34, switchFlag: 0}, + {qe: 0x0141, nmps: 38, nlps: 35, switchFlag: 0}, + {qe: 0x0111, nmps: 39, nlps: 36, switchFlag: 0}, + {qe: 0x0085, nmps: 40, nlps: 37, switchFlag: 0}, + {qe: 0x0049, nmps: 41, nlps: 38, switchFlag: 0}, + {qe: 0x0025, nmps: 42, nlps: 39, switchFlag: 0}, + {qe: 0x0015, nmps: 43, nlps: 40, switchFlag: 0}, + {qe: 0x0009, nmps: 44, nlps: 41, switchFlag: 0}, + {qe: 0x0005, nmps: 45, nlps: 42, switchFlag: 0}, + {qe: 0x0001, nmps: 45, nlps: 43, switchFlag: 0}, + {qe: 0x5601, nmps: 46, nlps: 46, switchFlag: 0} + ]; + + // C.3.5 Initialisation of the decoder (INITDEC) + function ArithmeticDecoder(data, start, end) { + this.data = data; + this.bp = start; + this.dataEnd = end; + + this.chigh = data[start]; + this.clow = 0; + + this.byteIn(); + + this.chigh = ((this.chigh << 7) & 0xFFFF) | ((this.clow >> 9) & 0x7F); + this.clow = (this.clow << 7) & 0xFFFF; + this.ct -= 7; + this.a = 0x8000; + } + + ArithmeticDecoder.prototype = { + // C.3.4 Compressed data input (BYTEIN) + byteIn: function ArithmeticDecoder_byteIn() { + var data = this.data; + var bp = this.bp; + if (data[bp] === 0xFF) { + var b1 = data[bp + 1]; + if (b1 > 0x8F) { + this.clow += 0xFF00; + this.ct = 8; + } else { + bp++; + this.clow += (data[bp] << 9); + this.ct = 7; + this.bp = bp; + } + } else { + bp++; + this.clow += bp < this.dataEnd ? (data[bp] << 8) : 0xFF00; + this.ct = 8; + this.bp = bp; + } + if (this.clow > 0xFFFF) { + this.chigh += (this.clow >> 16); + this.clow &= 0xFFFF; + } + }, + // C.3.2 Decoding a decision (DECODE) + readBit: function ArithmeticDecoder_readBit(contexts, pos) { + // contexts are packed into 1 byte: + // highest 7 bits carry cx.index, lowest bit carries cx.mps + var cx_index = contexts[pos] >> 1, cx_mps = contexts[pos] & 1; + var qeTableIcx = QeTable[cx_index]; + var qeIcx = qeTableIcx.qe; + var d; + var a = this.a - qeIcx; + + if (this.chigh < qeIcx) { + // exchangeLps + if (a < qeIcx) { + a = qeIcx; + d = cx_mps; + cx_index = qeTableIcx.nmps; + } else { + a = qeIcx; + d = 1 ^ cx_mps; + if (qeTableIcx.switchFlag === 1) { + cx_mps = d; + } + cx_index = qeTableIcx.nlps; + } + } else { + this.chigh -= qeIcx; + if ((a & 0x8000) !== 0) { + this.a = a; + return cx_mps; + } + // exchangeMps + if (a < qeIcx) { + d = 1 ^ cx_mps; + if (qeTableIcx.switchFlag === 1) { + cx_mps = d; + } + cx_index = qeTableIcx.nlps; + } else { + d = cx_mps; + cx_index = qeTableIcx.nmps; + } + } + // C.3.3 renormD; + do { + if (this.ct === 0) { + this.byteIn(); + } + + a <<= 1; + this.chigh = ((this.chigh << 1) & 0xFFFF) | ((this.clow >> 15) & 1); + this.clow = (this.clow << 1) & 0xFFFF; + this.ct--; + } while ((a & 0x8000) === 0); + this.a = a; + + contexts[pos] = cx_index << 1 | cx_mps; + return d; + } + }; + + return ArithmeticDecoder; +})(); + +exports.ArithmeticDecoder = ArithmeticDecoder; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreCharsets = {})); + } +}(this, function (exports) { + +var ISOAdobeCharset = [ + '.notdef', 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', + 'percent', 'ampersand', 'quoteright', 'parenleft', 'parenright', + 'asterisk', 'plus', 'comma', 'hyphen', 'period', 'slash', 'zero', + 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', + 'nine', 'colon', 'semicolon', 'less', 'equal', 'greater', 'question', + 'at', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', + 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', + 'bracketleft', 'backslash', 'bracketright', 'asciicircum', 'underscore', + 'quoteleft', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', + 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', + 'braceleft', 'bar', 'braceright', 'asciitilde', 'exclamdown', 'cent', + 'sterling', 'fraction', 'yen', 'florin', 'section', 'currency', + 'quotesingle', 'quotedblleft', 'guillemotleft', 'guilsinglleft', + 'guilsinglright', 'fi', 'fl', 'endash', 'dagger', 'daggerdbl', + 'periodcentered', 'paragraph', 'bullet', 'quotesinglbase', + 'quotedblbase', 'quotedblright', 'guillemotright', 'ellipsis', + 'perthousand', 'questiondown', 'grave', 'acute', 'circumflex', 'tilde', + 'macron', 'breve', 'dotaccent', 'dieresis', 'ring', 'cedilla', + 'hungarumlaut', 'ogonek', 'caron', 'emdash', 'AE', 'ordfeminine', + 'Lslash', 'Oslash', 'OE', 'ordmasculine', 'ae', 'dotlessi', 'lslash', + 'oslash', 'oe', 'germandbls', 'onesuperior', 'logicalnot', 'mu', + 'trademark', 'Eth', 'onehalf', 'plusminus', 'Thorn', 'onequarter', + 'divide', 'brokenbar', 'degree', 'thorn', 'threequarters', 'twosuperior', + 'registered', 'minus', 'eth', 'multiply', 'threesuperior', 'copyright', + 'Aacute', 'Acircumflex', 'Adieresis', 'Agrave', 'Aring', 'Atilde', + 'Ccedilla', 'Eacute', 'Ecircumflex', 'Edieresis', 'Egrave', 'Iacute', + 'Icircumflex', 'Idieresis', 'Igrave', 'Ntilde', 'Oacute', 'Ocircumflex', + 'Odieresis', 'Ograve', 'Otilde', 'Scaron', 'Uacute', 'Ucircumflex', + 'Udieresis', 'Ugrave', 'Yacute', 'Ydieresis', 'Zcaron', 'aacute', + 'acircumflex', 'adieresis', 'agrave', 'aring', 'atilde', 'ccedilla', + 'eacute', 'ecircumflex', 'edieresis', 'egrave', 'iacute', 'icircumflex', + 'idieresis', 'igrave', 'ntilde', 'oacute', 'ocircumflex', 'odieresis', + 'ograve', 'otilde', 'scaron', 'uacute', 'ucircumflex', 'udieresis', + 'ugrave', 'yacute', 'ydieresis', 'zcaron' +]; + +var ExpertCharset = [ + '.notdef', 'space', 'exclamsmall', 'Hungarumlautsmall', 'dollaroldstyle', + 'dollarsuperior', 'ampersandsmall', 'Acutesmall', 'parenleftsuperior', + 'parenrightsuperior', 'twodotenleader', 'onedotenleader', 'comma', + 'hyphen', 'period', 'fraction', 'zerooldstyle', 'oneoldstyle', + 'twooldstyle', 'threeoldstyle', 'fouroldstyle', 'fiveoldstyle', + 'sixoldstyle', 'sevenoldstyle', 'eightoldstyle', 'nineoldstyle', + 'colon', 'semicolon', 'commasuperior', 'threequartersemdash', + 'periodsuperior', 'questionsmall', 'asuperior', 'bsuperior', + 'centsuperior', 'dsuperior', 'esuperior', 'isuperior', 'lsuperior', + 'msuperior', 'nsuperior', 'osuperior', 'rsuperior', 'ssuperior', + 'tsuperior', 'ff', 'fi', 'fl', 'ffi', 'ffl', 'parenleftinferior', + 'parenrightinferior', 'Circumflexsmall', 'hyphensuperior', 'Gravesmall', + 'Asmall', 'Bsmall', 'Csmall', 'Dsmall', 'Esmall', 'Fsmall', 'Gsmall', + 'Hsmall', 'Ismall', 'Jsmall', 'Ksmall', 'Lsmall', 'Msmall', 'Nsmall', + 'Osmall', 'Psmall', 'Qsmall', 'Rsmall', 'Ssmall', 'Tsmall', 'Usmall', + 'Vsmall', 'Wsmall', 'Xsmall', 'Ysmall', 'Zsmall', 'colonmonetary', + 'onefitted', 'rupiah', 'Tildesmall', 'exclamdownsmall', 'centoldstyle', + 'Lslashsmall', 'Scaronsmall', 'Zcaronsmall', 'Dieresissmall', + 'Brevesmall', 'Caronsmall', 'Dotaccentsmall', 'Macronsmall', + 'figuredash', 'hypheninferior', 'Ogoneksmall', 'Ringsmall', + 'Cedillasmall', 'onequarter', 'onehalf', 'threequarters', + 'questiondownsmall', 'oneeighth', 'threeeighths', 'fiveeighths', + 'seveneighths', 'onethird', 'twothirds', 'zerosuperior', 'onesuperior', + 'twosuperior', 'threesuperior', 'foursuperior', 'fivesuperior', + 'sixsuperior', 'sevensuperior', 'eightsuperior', 'ninesuperior', + 'zeroinferior', 'oneinferior', 'twoinferior', 'threeinferior', + 'fourinferior', 'fiveinferior', 'sixinferior', 'seveninferior', + 'eightinferior', 'nineinferior', 'centinferior', 'dollarinferior', + 'periodinferior', 'commainferior', 'Agravesmall', 'Aacutesmall', + 'Acircumflexsmall', 'Atildesmall', 'Adieresissmall', 'Aringsmall', + 'AEsmall', 'Ccedillasmall', 'Egravesmall', 'Eacutesmall', + 'Ecircumflexsmall', 'Edieresissmall', 'Igravesmall', 'Iacutesmall', + 'Icircumflexsmall', 'Idieresissmall', 'Ethsmall', 'Ntildesmall', + 'Ogravesmall', 'Oacutesmall', 'Ocircumflexsmall', 'Otildesmall', + 'Odieresissmall', 'OEsmall', 'Oslashsmall', 'Ugravesmall', 'Uacutesmall', + 'Ucircumflexsmall', 'Udieresissmall', 'Yacutesmall', 'Thornsmall', + 'Ydieresissmall' +]; + +var ExpertSubsetCharset = [ + '.notdef', 'space', 'dollaroldstyle', 'dollarsuperior', + 'parenleftsuperior', 'parenrightsuperior', 'twodotenleader', + 'onedotenleader', 'comma', 'hyphen', 'period', 'fraction', + 'zerooldstyle', 'oneoldstyle', 'twooldstyle', 'threeoldstyle', + 'fouroldstyle', 'fiveoldstyle', 'sixoldstyle', 'sevenoldstyle', + 'eightoldstyle', 'nineoldstyle', 'colon', 'semicolon', 'commasuperior', + 'threequartersemdash', 'periodsuperior', 'asuperior', 'bsuperior', + 'centsuperior', 'dsuperior', 'esuperior', 'isuperior', 'lsuperior', + 'msuperior', 'nsuperior', 'osuperior', 'rsuperior', 'ssuperior', + 'tsuperior', 'ff', 'fi', 'fl', 'ffi', 'ffl', 'parenleftinferior', + 'parenrightinferior', 'hyphensuperior', 'colonmonetary', 'onefitted', + 'rupiah', 'centoldstyle', 'figuredash', 'hypheninferior', 'onequarter', + 'onehalf', 'threequarters', 'oneeighth', 'threeeighths', 'fiveeighths', + 'seveneighths', 'onethird', 'twothirds', 'zerosuperior', 'onesuperior', + 'twosuperior', 'threesuperior', 'foursuperior', 'fivesuperior', + 'sixsuperior', 'sevensuperior', 'eightsuperior', 'ninesuperior', + 'zeroinferior', 'oneinferior', 'twoinferior', 'threeinferior', + 'fourinferior', 'fiveinferior', 'sixinferior', 'seveninferior', + 'eightinferior', 'nineinferior', 'centinferior', 'dollarinferior', + 'periodinferior', 'commainferior' +]; + +exports.ISOAdobeCharset = ISOAdobeCharset; +exports.ExpertCharset = ExpertCharset; +exports.ExpertSubsetCharset = ExpertSubsetCharset; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreGlyphList = {})); + } +}(this, function (exports) { + +var GlyphsUnicode = { + A: 0x0041, + AE: 0x00C6, + AEacute: 0x01FC, + AEmacron: 0x01E2, + AEsmall: 0xF7E6, + Aacute: 0x00C1, + Aacutesmall: 0xF7E1, + Abreve: 0x0102, + Abreveacute: 0x1EAE, + Abrevecyrillic: 0x04D0, + Abrevedotbelow: 0x1EB6, + Abrevegrave: 0x1EB0, + Abrevehookabove: 0x1EB2, + Abrevetilde: 0x1EB4, + Acaron: 0x01CD, + Acircle: 0x24B6, + Acircumflex: 0x00C2, + Acircumflexacute: 0x1EA4, + Acircumflexdotbelow: 0x1EAC, + Acircumflexgrave: 0x1EA6, + Acircumflexhookabove: 0x1EA8, + Acircumflexsmall: 0xF7E2, + Acircumflextilde: 0x1EAA, + Acute: 0xF6C9, + Acutesmall: 0xF7B4, + Acyrillic: 0x0410, + Adblgrave: 0x0200, + Adieresis: 0x00C4, + Adieresiscyrillic: 0x04D2, + Adieresismacron: 0x01DE, + Adieresissmall: 0xF7E4, + Adotbelow: 0x1EA0, + Adotmacron: 0x01E0, + Agrave: 0x00C0, + Agravesmall: 0xF7E0, + Ahookabove: 0x1EA2, + Aiecyrillic: 0x04D4, + Ainvertedbreve: 0x0202, + Alpha: 0x0391, + Alphatonos: 0x0386, + Amacron: 0x0100, + Amonospace: 0xFF21, + Aogonek: 0x0104, + Aring: 0x00C5, + Aringacute: 0x01FA, + Aringbelow: 0x1E00, + Aringsmall: 0xF7E5, + Asmall: 0xF761, + Atilde: 0x00C3, + Atildesmall: 0xF7E3, + Aybarmenian: 0x0531, + B: 0x0042, + Bcircle: 0x24B7, + Bdotaccent: 0x1E02, + Bdotbelow: 0x1E04, + Becyrillic: 0x0411, + Benarmenian: 0x0532, + Beta: 0x0392, + Bhook: 0x0181, + Blinebelow: 0x1E06, + Bmonospace: 0xFF22, + Brevesmall: 0xF6F4, + Bsmall: 0xF762, + Btopbar: 0x0182, + C: 0x0043, + Caarmenian: 0x053E, + Cacute: 0x0106, + Caron: 0xF6CA, + Caronsmall: 0xF6F5, + Ccaron: 0x010C, + Ccedilla: 0x00C7, + Ccedillaacute: 0x1E08, + Ccedillasmall: 0xF7E7, + Ccircle: 0x24B8, + Ccircumflex: 0x0108, + Cdot: 0x010A, + Cdotaccent: 0x010A, + Cedillasmall: 0xF7B8, + Chaarmenian: 0x0549, + Cheabkhasiancyrillic: 0x04BC, + Checyrillic: 0x0427, + Chedescenderabkhasiancyrillic: 0x04BE, + Chedescendercyrillic: 0x04B6, + Chedieresiscyrillic: 0x04F4, + Cheharmenian: 0x0543, + Chekhakassiancyrillic: 0x04CB, + Cheverticalstrokecyrillic: 0x04B8, + Chi: 0x03A7, + Chook: 0x0187, + Circumflexsmall: 0xF6F6, + Cmonospace: 0xFF23, + Coarmenian: 0x0551, + Csmall: 0xF763, + D: 0x0044, + DZ: 0x01F1, + DZcaron: 0x01C4, + Daarmenian: 0x0534, + Dafrican: 0x0189, + Dcaron: 0x010E, + Dcedilla: 0x1E10, + Dcircle: 0x24B9, + Dcircumflexbelow: 0x1E12, + Dcroat: 0x0110, + Ddotaccent: 0x1E0A, + Ddotbelow: 0x1E0C, + Decyrillic: 0x0414, + Deicoptic: 0x03EE, + Delta: 0x2206, + Deltagreek: 0x0394, + Dhook: 0x018A, + Dieresis: 0xF6CB, + DieresisAcute: 0xF6CC, + DieresisGrave: 0xF6CD, + Dieresissmall: 0xF7A8, + Digammagreek: 0x03DC, + Djecyrillic: 0x0402, + Dlinebelow: 0x1E0E, + Dmonospace: 0xFF24, + Dotaccentsmall: 0xF6F7, + Dslash: 0x0110, + Dsmall: 0xF764, + Dtopbar: 0x018B, + Dz: 0x01F2, + Dzcaron: 0x01C5, + Dzeabkhasiancyrillic: 0x04E0, + Dzecyrillic: 0x0405, + Dzhecyrillic: 0x040F, + E: 0x0045, + Eacute: 0x00C9, + Eacutesmall: 0xF7E9, + Ebreve: 0x0114, + Ecaron: 0x011A, + Ecedillabreve: 0x1E1C, + Echarmenian: 0x0535, + Ecircle: 0x24BA, + Ecircumflex: 0x00CA, + Ecircumflexacute: 0x1EBE, + Ecircumflexbelow: 0x1E18, + Ecircumflexdotbelow: 0x1EC6, + Ecircumflexgrave: 0x1EC0, + Ecircumflexhookabove: 0x1EC2, + Ecircumflexsmall: 0xF7EA, + Ecircumflextilde: 0x1EC4, + Ecyrillic: 0x0404, + Edblgrave: 0x0204, + Edieresis: 0x00CB, + Edieresissmall: 0xF7EB, + Edot: 0x0116, + Edotaccent: 0x0116, + Edotbelow: 0x1EB8, + Efcyrillic: 0x0424, + Egrave: 0x00C8, + Egravesmall: 0xF7E8, + Eharmenian: 0x0537, + Ehookabove: 0x1EBA, + Eightroman: 0x2167, + Einvertedbreve: 0x0206, + Eiotifiedcyrillic: 0x0464, + Elcyrillic: 0x041B, + Elevenroman: 0x216A, + Emacron: 0x0112, + Emacronacute: 0x1E16, + Emacrongrave: 0x1E14, + Emcyrillic: 0x041C, + Emonospace: 0xFF25, + Encyrillic: 0x041D, + Endescendercyrillic: 0x04A2, + Eng: 0x014A, + Enghecyrillic: 0x04A4, + Enhookcyrillic: 0x04C7, + Eogonek: 0x0118, + Eopen: 0x0190, + Epsilon: 0x0395, + Epsilontonos: 0x0388, + Ercyrillic: 0x0420, + Ereversed: 0x018E, + Ereversedcyrillic: 0x042D, + Escyrillic: 0x0421, + Esdescendercyrillic: 0x04AA, + Esh: 0x01A9, + Esmall: 0xF765, + Eta: 0x0397, + Etarmenian: 0x0538, + Etatonos: 0x0389, + Eth: 0x00D0, + Ethsmall: 0xF7F0, + Etilde: 0x1EBC, + Etildebelow: 0x1E1A, + Euro: 0x20AC, + Ezh: 0x01B7, + Ezhcaron: 0x01EE, + Ezhreversed: 0x01B8, + F: 0x0046, + Fcircle: 0x24BB, + Fdotaccent: 0x1E1E, + Feharmenian: 0x0556, + Feicoptic: 0x03E4, + Fhook: 0x0191, + Fitacyrillic: 0x0472, + Fiveroman: 0x2164, + Fmonospace: 0xFF26, + Fourroman: 0x2163, + Fsmall: 0xF766, + G: 0x0047, + GBsquare: 0x3387, + Gacute: 0x01F4, + Gamma: 0x0393, + Gammaafrican: 0x0194, + Gangiacoptic: 0x03EA, + Gbreve: 0x011E, + Gcaron: 0x01E6, + Gcedilla: 0x0122, + Gcircle: 0x24BC, + Gcircumflex: 0x011C, + Gcommaaccent: 0x0122, + Gdot: 0x0120, + Gdotaccent: 0x0120, + Gecyrillic: 0x0413, + Ghadarmenian: 0x0542, + Ghemiddlehookcyrillic: 0x0494, + Ghestrokecyrillic: 0x0492, + Gheupturncyrillic: 0x0490, + Ghook: 0x0193, + Gimarmenian: 0x0533, + Gjecyrillic: 0x0403, + Gmacron: 0x1E20, + Gmonospace: 0xFF27, + Grave: 0xF6CE, + Gravesmall: 0xF760, + Gsmall: 0xF767, + Gsmallhook: 0x029B, + Gstroke: 0x01E4, + H: 0x0048, + H18533: 0x25CF, + H18543: 0x25AA, + H18551: 0x25AB, + H22073: 0x25A1, + HPsquare: 0x33CB, + Haabkhasiancyrillic: 0x04A8, + Hadescendercyrillic: 0x04B2, + Hardsigncyrillic: 0x042A, + Hbar: 0x0126, + Hbrevebelow: 0x1E2A, + Hcedilla: 0x1E28, + Hcircle: 0x24BD, + Hcircumflex: 0x0124, + Hdieresis: 0x1E26, + Hdotaccent: 0x1E22, + Hdotbelow: 0x1E24, + Hmonospace: 0xFF28, + Hoarmenian: 0x0540, + Horicoptic: 0x03E8, + Hsmall: 0xF768, + Hungarumlaut: 0xF6CF, + Hungarumlautsmall: 0xF6F8, + Hzsquare: 0x3390, + I: 0x0049, + IAcyrillic: 0x042F, + IJ: 0x0132, + IUcyrillic: 0x042E, + Iacute: 0x00CD, + Iacutesmall: 0xF7ED, + Ibreve: 0x012C, + Icaron: 0x01CF, + Icircle: 0x24BE, + Icircumflex: 0x00CE, + Icircumflexsmall: 0xF7EE, + Icyrillic: 0x0406, + Idblgrave: 0x0208, + Idieresis: 0x00CF, + Idieresisacute: 0x1E2E, + Idieresiscyrillic: 0x04E4, + Idieresissmall: 0xF7EF, + Idot: 0x0130, + Idotaccent: 0x0130, + Idotbelow: 0x1ECA, + Iebrevecyrillic: 0x04D6, + Iecyrillic: 0x0415, + Ifraktur: 0x2111, + Igrave: 0x00CC, + Igravesmall: 0xF7EC, + Ihookabove: 0x1EC8, + Iicyrillic: 0x0418, + Iinvertedbreve: 0x020A, + Iishortcyrillic: 0x0419, + Imacron: 0x012A, + Imacroncyrillic: 0x04E2, + Imonospace: 0xFF29, + Iniarmenian: 0x053B, + Iocyrillic: 0x0401, + Iogonek: 0x012E, + Iota: 0x0399, + Iotaafrican: 0x0196, + Iotadieresis: 0x03AA, + Iotatonos: 0x038A, + Ismall: 0xF769, + Istroke: 0x0197, + Itilde: 0x0128, + Itildebelow: 0x1E2C, + Izhitsacyrillic: 0x0474, + Izhitsadblgravecyrillic: 0x0476, + J: 0x004A, + Jaarmenian: 0x0541, + Jcircle: 0x24BF, + Jcircumflex: 0x0134, + Jecyrillic: 0x0408, + Jheharmenian: 0x054B, + Jmonospace: 0xFF2A, + Jsmall: 0xF76A, + K: 0x004B, + KBsquare: 0x3385, + KKsquare: 0x33CD, + Kabashkircyrillic: 0x04A0, + Kacute: 0x1E30, + Kacyrillic: 0x041A, + Kadescendercyrillic: 0x049A, + Kahookcyrillic: 0x04C3, + Kappa: 0x039A, + Kastrokecyrillic: 0x049E, + Kaverticalstrokecyrillic: 0x049C, + Kcaron: 0x01E8, + Kcedilla: 0x0136, + Kcircle: 0x24C0, + Kcommaaccent: 0x0136, + Kdotbelow: 0x1E32, + Keharmenian: 0x0554, + Kenarmenian: 0x053F, + Khacyrillic: 0x0425, + Kheicoptic: 0x03E6, + Khook: 0x0198, + Kjecyrillic: 0x040C, + Klinebelow: 0x1E34, + Kmonospace: 0xFF2B, + Koppacyrillic: 0x0480, + Koppagreek: 0x03DE, + Ksicyrillic: 0x046E, + Ksmall: 0xF76B, + L: 0x004C, + LJ: 0x01C7, + LL: 0xF6BF, + Lacute: 0x0139, + Lambda: 0x039B, + Lcaron: 0x013D, + Lcedilla: 0x013B, + Lcircle: 0x24C1, + Lcircumflexbelow: 0x1E3C, + Lcommaaccent: 0x013B, + Ldot: 0x013F, + Ldotaccent: 0x013F, + Ldotbelow: 0x1E36, + Ldotbelowmacron: 0x1E38, + Liwnarmenian: 0x053C, + Lj: 0x01C8, + Ljecyrillic: 0x0409, + Llinebelow: 0x1E3A, + Lmonospace: 0xFF2C, + Lslash: 0x0141, + Lslashsmall: 0xF6F9, + Lsmall: 0xF76C, + M: 0x004D, + MBsquare: 0x3386, + Macron: 0xF6D0, + Macronsmall: 0xF7AF, + Macute: 0x1E3E, + Mcircle: 0x24C2, + Mdotaccent: 0x1E40, + Mdotbelow: 0x1E42, + Menarmenian: 0x0544, + Mmonospace: 0xFF2D, + Msmall: 0xF76D, + Mturned: 0x019C, + Mu: 0x039C, + N: 0x004E, + NJ: 0x01CA, + Nacute: 0x0143, + Ncaron: 0x0147, + Ncedilla: 0x0145, + Ncircle: 0x24C3, + Ncircumflexbelow: 0x1E4A, + Ncommaaccent: 0x0145, + Ndotaccent: 0x1E44, + Ndotbelow: 0x1E46, + Nhookleft: 0x019D, + Nineroman: 0x2168, + Nj: 0x01CB, + Njecyrillic: 0x040A, + Nlinebelow: 0x1E48, + Nmonospace: 0xFF2E, + Nowarmenian: 0x0546, + Nsmall: 0xF76E, + Ntilde: 0x00D1, + Ntildesmall: 0xF7F1, + Nu: 0x039D, + O: 0x004F, + OE: 0x0152, + OEsmall: 0xF6FA, + Oacute: 0x00D3, + Oacutesmall: 0xF7F3, + Obarredcyrillic: 0x04E8, + Obarreddieresiscyrillic: 0x04EA, + Obreve: 0x014E, + Ocaron: 0x01D1, + Ocenteredtilde: 0x019F, + Ocircle: 0x24C4, + Ocircumflex: 0x00D4, + Ocircumflexacute: 0x1ED0, + Ocircumflexdotbelow: 0x1ED8, + Ocircumflexgrave: 0x1ED2, + Ocircumflexhookabove: 0x1ED4, + Ocircumflexsmall: 0xF7F4, + Ocircumflextilde: 0x1ED6, + Ocyrillic: 0x041E, + Odblacute: 0x0150, + Odblgrave: 0x020C, + Odieresis: 0x00D6, + Odieresiscyrillic: 0x04E6, + Odieresissmall: 0xF7F6, + Odotbelow: 0x1ECC, + Ogoneksmall: 0xF6FB, + Ograve: 0x00D2, + Ogravesmall: 0xF7F2, + Oharmenian: 0x0555, + Ohm: 0x2126, + Ohookabove: 0x1ECE, + Ohorn: 0x01A0, + Ohornacute: 0x1EDA, + Ohorndotbelow: 0x1EE2, + Ohorngrave: 0x1EDC, + Ohornhookabove: 0x1EDE, + Ohorntilde: 0x1EE0, + Ohungarumlaut: 0x0150, + Oi: 0x01A2, + Oinvertedbreve: 0x020E, + Omacron: 0x014C, + Omacronacute: 0x1E52, + Omacrongrave: 0x1E50, + Omega: 0x2126, + Omegacyrillic: 0x0460, + Omegagreek: 0x03A9, + Omegaroundcyrillic: 0x047A, + Omegatitlocyrillic: 0x047C, + Omegatonos: 0x038F, + Omicron: 0x039F, + Omicrontonos: 0x038C, + Omonospace: 0xFF2F, + Oneroman: 0x2160, + Oogonek: 0x01EA, + Oogonekmacron: 0x01EC, + Oopen: 0x0186, + Oslash: 0x00D8, + Oslashacute: 0x01FE, + Oslashsmall: 0xF7F8, + Osmall: 0xF76F, + Ostrokeacute: 0x01FE, + Otcyrillic: 0x047E, + Otilde: 0x00D5, + Otildeacute: 0x1E4C, + Otildedieresis: 0x1E4E, + Otildesmall: 0xF7F5, + P: 0x0050, + Pacute: 0x1E54, + Pcircle: 0x24C5, + Pdotaccent: 0x1E56, + Pecyrillic: 0x041F, + Peharmenian: 0x054A, + Pemiddlehookcyrillic: 0x04A6, + Phi: 0x03A6, + Phook: 0x01A4, + Pi: 0x03A0, + Piwrarmenian: 0x0553, + Pmonospace: 0xFF30, + Psi: 0x03A8, + Psicyrillic: 0x0470, + Psmall: 0xF770, + Q: 0x0051, + Qcircle: 0x24C6, + Qmonospace: 0xFF31, + Qsmall: 0xF771, + R: 0x0052, + Raarmenian: 0x054C, + Racute: 0x0154, + Rcaron: 0x0158, + Rcedilla: 0x0156, + Rcircle: 0x24C7, + Rcommaaccent: 0x0156, + Rdblgrave: 0x0210, + Rdotaccent: 0x1E58, + Rdotbelow: 0x1E5A, + Rdotbelowmacron: 0x1E5C, + Reharmenian: 0x0550, + Rfraktur: 0x211C, + Rho: 0x03A1, + Ringsmall: 0xF6FC, + Rinvertedbreve: 0x0212, + Rlinebelow: 0x1E5E, + Rmonospace: 0xFF32, + Rsmall: 0xF772, + Rsmallinverted: 0x0281, + Rsmallinvertedsuperior: 0x02B6, + S: 0x0053, + SF010000: 0x250C, + SF020000: 0x2514, + SF030000: 0x2510, + SF040000: 0x2518, + SF050000: 0x253C, + SF060000: 0x252C, + SF070000: 0x2534, + SF080000: 0x251C, + SF090000: 0x2524, + SF100000: 0x2500, + SF110000: 0x2502, + SF190000: 0x2561, + SF200000: 0x2562, + SF210000: 0x2556, + SF220000: 0x2555, + SF230000: 0x2563, + SF240000: 0x2551, + SF250000: 0x2557, + SF260000: 0x255D, + SF270000: 0x255C, + SF280000: 0x255B, + SF360000: 0x255E, + SF370000: 0x255F, + SF380000: 0x255A, + SF390000: 0x2554, + SF400000: 0x2569, + SF410000: 0x2566, + SF420000: 0x2560, + SF430000: 0x2550, + SF440000: 0x256C, + SF450000: 0x2567, + SF460000: 0x2568, + SF470000: 0x2564, + SF480000: 0x2565, + SF490000: 0x2559, + SF500000: 0x2558, + SF510000: 0x2552, + SF520000: 0x2553, + SF530000: 0x256B, + SF540000: 0x256A, + Sacute: 0x015A, + Sacutedotaccent: 0x1E64, + Sampigreek: 0x03E0, + Scaron: 0x0160, + Scarondotaccent: 0x1E66, + Scaronsmall: 0xF6FD, + Scedilla: 0x015E, + Schwa: 0x018F, + Schwacyrillic: 0x04D8, + Schwadieresiscyrillic: 0x04DA, + Scircle: 0x24C8, + Scircumflex: 0x015C, + Scommaaccent: 0x0218, + Sdotaccent: 0x1E60, + Sdotbelow: 0x1E62, + Sdotbelowdotaccent: 0x1E68, + Seharmenian: 0x054D, + Sevenroman: 0x2166, + Shaarmenian: 0x0547, + Shacyrillic: 0x0428, + Shchacyrillic: 0x0429, + Sheicoptic: 0x03E2, + Shhacyrillic: 0x04BA, + Shimacoptic: 0x03EC, + Sigma: 0x03A3, + Sixroman: 0x2165, + Smonospace: 0xFF33, + Softsigncyrillic: 0x042C, + Ssmall: 0xF773, + Stigmagreek: 0x03DA, + T: 0x0054, + Tau: 0x03A4, + Tbar: 0x0166, + Tcaron: 0x0164, + Tcedilla: 0x0162, + Tcircle: 0x24C9, + Tcircumflexbelow: 0x1E70, + Tcommaaccent: 0x0162, + Tdotaccent: 0x1E6A, + Tdotbelow: 0x1E6C, + Tecyrillic: 0x0422, + Tedescendercyrillic: 0x04AC, + Tenroman: 0x2169, + Tetsecyrillic: 0x04B4, + Theta: 0x0398, + Thook: 0x01AC, + Thorn: 0x00DE, + Thornsmall: 0xF7FE, + Threeroman: 0x2162, + Tildesmall: 0xF6FE, + Tiwnarmenian: 0x054F, + Tlinebelow: 0x1E6E, + Tmonospace: 0xFF34, + Toarmenian: 0x0539, + Tonefive: 0x01BC, + Tonesix: 0x0184, + Tonetwo: 0x01A7, + Tretroflexhook: 0x01AE, + Tsecyrillic: 0x0426, + Tshecyrillic: 0x040B, + Tsmall: 0xF774, + Twelveroman: 0x216B, + Tworoman: 0x2161, + U: 0x0055, + Uacute: 0x00DA, + Uacutesmall: 0xF7FA, + Ubreve: 0x016C, + Ucaron: 0x01D3, + Ucircle: 0x24CA, + Ucircumflex: 0x00DB, + Ucircumflexbelow: 0x1E76, + Ucircumflexsmall: 0xF7FB, + Ucyrillic: 0x0423, + Udblacute: 0x0170, + Udblgrave: 0x0214, + Udieresis: 0x00DC, + Udieresisacute: 0x01D7, + Udieresisbelow: 0x1E72, + Udieresiscaron: 0x01D9, + Udieresiscyrillic: 0x04F0, + Udieresisgrave: 0x01DB, + Udieresismacron: 0x01D5, + Udieresissmall: 0xF7FC, + Udotbelow: 0x1EE4, + Ugrave: 0x00D9, + Ugravesmall: 0xF7F9, + Uhookabove: 0x1EE6, + Uhorn: 0x01AF, + Uhornacute: 0x1EE8, + Uhorndotbelow: 0x1EF0, + Uhorngrave: 0x1EEA, + Uhornhookabove: 0x1EEC, + Uhorntilde: 0x1EEE, + Uhungarumlaut: 0x0170, + Uhungarumlautcyrillic: 0x04F2, + Uinvertedbreve: 0x0216, + Ukcyrillic: 0x0478, + Umacron: 0x016A, + Umacroncyrillic: 0x04EE, + Umacrondieresis: 0x1E7A, + Umonospace: 0xFF35, + Uogonek: 0x0172, + Upsilon: 0x03A5, + Upsilon1: 0x03D2, + Upsilonacutehooksymbolgreek: 0x03D3, + Upsilonafrican: 0x01B1, + Upsilondieresis: 0x03AB, + Upsilondieresishooksymbolgreek: 0x03D4, + Upsilonhooksymbol: 0x03D2, + Upsilontonos: 0x038E, + Uring: 0x016E, + Ushortcyrillic: 0x040E, + Usmall: 0xF775, + Ustraightcyrillic: 0x04AE, + Ustraightstrokecyrillic: 0x04B0, + Utilde: 0x0168, + Utildeacute: 0x1E78, + Utildebelow: 0x1E74, + V: 0x0056, + Vcircle: 0x24CB, + Vdotbelow: 0x1E7E, + Vecyrillic: 0x0412, + Vewarmenian: 0x054E, + Vhook: 0x01B2, + Vmonospace: 0xFF36, + Voarmenian: 0x0548, + Vsmall: 0xF776, + Vtilde: 0x1E7C, + W: 0x0057, + Wacute: 0x1E82, + Wcircle: 0x24CC, + Wcircumflex: 0x0174, + Wdieresis: 0x1E84, + Wdotaccent: 0x1E86, + Wdotbelow: 0x1E88, + Wgrave: 0x1E80, + Wmonospace: 0xFF37, + Wsmall: 0xF777, + X: 0x0058, + Xcircle: 0x24CD, + Xdieresis: 0x1E8C, + Xdotaccent: 0x1E8A, + Xeharmenian: 0x053D, + Xi: 0x039E, + Xmonospace: 0xFF38, + Xsmall: 0xF778, + Y: 0x0059, + Yacute: 0x00DD, + Yacutesmall: 0xF7FD, + Yatcyrillic: 0x0462, + Ycircle: 0x24CE, + Ycircumflex: 0x0176, + Ydieresis: 0x0178, + Ydieresissmall: 0xF7FF, + Ydotaccent: 0x1E8E, + Ydotbelow: 0x1EF4, + Yericyrillic: 0x042B, + Yerudieresiscyrillic: 0x04F8, + Ygrave: 0x1EF2, + Yhook: 0x01B3, + Yhookabove: 0x1EF6, + Yiarmenian: 0x0545, + Yicyrillic: 0x0407, + Yiwnarmenian: 0x0552, + Ymonospace: 0xFF39, + Ysmall: 0xF779, + Ytilde: 0x1EF8, + Yusbigcyrillic: 0x046A, + Yusbigiotifiedcyrillic: 0x046C, + Yuslittlecyrillic: 0x0466, + Yuslittleiotifiedcyrillic: 0x0468, + Z: 0x005A, + Zaarmenian: 0x0536, + Zacute: 0x0179, + Zcaron: 0x017D, + Zcaronsmall: 0xF6FF, + Zcircle: 0x24CF, + Zcircumflex: 0x1E90, + Zdot: 0x017B, + Zdotaccent: 0x017B, + Zdotbelow: 0x1E92, + Zecyrillic: 0x0417, + Zedescendercyrillic: 0x0498, + Zedieresiscyrillic: 0x04DE, + Zeta: 0x0396, + Zhearmenian: 0x053A, + Zhebrevecyrillic: 0x04C1, + Zhecyrillic: 0x0416, + Zhedescendercyrillic: 0x0496, + Zhedieresiscyrillic: 0x04DC, + Zlinebelow: 0x1E94, + Zmonospace: 0xFF3A, + Zsmall: 0xF77A, + Zstroke: 0x01B5, + a: 0x0061, + aabengali: 0x0986, + aacute: 0x00E1, + aadeva: 0x0906, + aagujarati: 0x0A86, + aagurmukhi: 0x0A06, + aamatragurmukhi: 0x0A3E, + aarusquare: 0x3303, + aavowelsignbengali: 0x09BE, + aavowelsigndeva: 0x093E, + aavowelsigngujarati: 0x0ABE, + abbreviationmarkarmenian: 0x055F, + abbreviationsigndeva: 0x0970, + abengali: 0x0985, + abopomofo: 0x311A, + abreve: 0x0103, + abreveacute: 0x1EAF, + abrevecyrillic: 0x04D1, + abrevedotbelow: 0x1EB7, + abrevegrave: 0x1EB1, + abrevehookabove: 0x1EB3, + abrevetilde: 0x1EB5, + acaron: 0x01CE, + acircle: 0x24D0, + acircumflex: 0x00E2, + acircumflexacute: 0x1EA5, + acircumflexdotbelow: 0x1EAD, + acircumflexgrave: 0x1EA7, + acircumflexhookabove: 0x1EA9, + acircumflextilde: 0x1EAB, + acute: 0x00B4, + acutebelowcmb: 0x0317, + acutecmb: 0x0301, + acutecomb: 0x0301, + acutedeva: 0x0954, + acutelowmod: 0x02CF, + acutetonecmb: 0x0341, + acyrillic: 0x0430, + adblgrave: 0x0201, + addakgurmukhi: 0x0A71, + adeva: 0x0905, + adieresis: 0x00E4, + adieresiscyrillic: 0x04D3, + adieresismacron: 0x01DF, + adotbelow: 0x1EA1, + adotmacron: 0x01E1, + ae: 0x00E6, + aeacute: 0x01FD, + aekorean: 0x3150, + aemacron: 0x01E3, + afii00208: 0x2015, + afii08941: 0x20A4, + afii10017: 0x0410, + afii10018: 0x0411, + afii10019: 0x0412, + afii10020: 0x0413, + afii10021: 0x0414, + afii10022: 0x0415, + afii10023: 0x0401, + afii10024: 0x0416, + afii10025: 0x0417, + afii10026: 0x0418, + afii10027: 0x0419, + afii10028: 0x041A, + afii10029: 0x041B, + afii10030: 0x041C, + afii10031: 0x041D, + afii10032: 0x041E, + afii10033: 0x041F, + afii10034: 0x0420, + afii10035: 0x0421, + afii10036: 0x0422, + afii10037: 0x0423, + afii10038: 0x0424, + afii10039: 0x0425, + afii10040: 0x0426, + afii10041: 0x0427, + afii10042: 0x0428, + afii10043: 0x0429, + afii10044: 0x042A, + afii10045: 0x042B, + afii10046: 0x042C, + afii10047: 0x042D, + afii10048: 0x042E, + afii10049: 0x042F, + afii10050: 0x0490, + afii10051: 0x0402, + afii10052: 0x0403, + afii10053: 0x0404, + afii10054: 0x0405, + afii10055: 0x0406, + afii10056: 0x0407, + afii10057: 0x0408, + afii10058: 0x0409, + afii10059: 0x040A, + afii10060: 0x040B, + afii10061: 0x040C, + afii10062: 0x040E, + afii10063: 0xF6C4, + afii10064: 0xF6C5, + afii10065: 0x0430, + afii10066: 0x0431, + afii10067: 0x0432, + afii10068: 0x0433, + afii10069: 0x0434, + afii10070: 0x0435, + afii10071: 0x0451, + afii10072: 0x0436, + afii10073: 0x0437, + afii10074: 0x0438, + afii10075: 0x0439, + afii10076: 0x043A, + afii10077: 0x043B, + afii10078: 0x043C, + afii10079: 0x043D, + afii10080: 0x043E, + afii10081: 0x043F, + afii10082: 0x0440, + afii10083: 0x0441, + afii10084: 0x0442, + afii10085: 0x0443, + afii10086: 0x0444, + afii10087: 0x0445, + afii10088: 0x0446, + afii10089: 0x0447, + afii10090: 0x0448, + afii10091: 0x0449, + afii10092: 0x044A, + afii10093: 0x044B, + afii10094: 0x044C, + afii10095: 0x044D, + afii10096: 0x044E, + afii10097: 0x044F, + afii10098: 0x0491, + afii10099: 0x0452, + afii10100: 0x0453, + afii10101: 0x0454, + afii10102: 0x0455, + afii10103: 0x0456, + afii10104: 0x0457, + afii10105: 0x0458, + afii10106: 0x0459, + afii10107: 0x045A, + afii10108: 0x045B, + afii10109: 0x045C, + afii10110: 0x045E, + afii10145: 0x040F, + afii10146: 0x0462, + afii10147: 0x0472, + afii10148: 0x0474, + afii10192: 0xF6C6, + afii10193: 0x045F, + afii10194: 0x0463, + afii10195: 0x0473, + afii10196: 0x0475, + afii10831: 0xF6C7, + afii10832: 0xF6C8, + afii10846: 0x04D9, + afii299: 0x200E, + afii300: 0x200F, + afii301: 0x200D, + afii57381: 0x066A, + afii57388: 0x060C, + afii57392: 0x0660, + afii57393: 0x0661, + afii57394: 0x0662, + afii57395: 0x0663, + afii57396: 0x0664, + afii57397: 0x0665, + afii57398: 0x0666, + afii57399: 0x0667, + afii57400: 0x0668, + afii57401: 0x0669, + afii57403: 0x061B, + afii57407: 0x061F, + afii57409: 0x0621, + afii57410: 0x0622, + afii57411: 0x0623, + afii57412: 0x0624, + afii57413: 0x0625, + afii57414: 0x0626, + afii57415: 0x0627, + afii57416: 0x0628, + afii57417: 0x0629, + afii57418: 0x062A, + afii57419: 0x062B, + afii57420: 0x062C, + afii57421: 0x062D, + afii57422: 0x062E, + afii57423: 0x062F, + afii57424: 0x0630, + afii57425: 0x0631, + afii57426: 0x0632, + afii57427: 0x0633, + afii57428: 0x0634, + afii57429: 0x0635, + afii57430: 0x0636, + afii57431: 0x0637, + afii57432: 0x0638, + afii57433: 0x0639, + afii57434: 0x063A, + afii57440: 0x0640, + afii57441: 0x0641, + afii57442: 0x0642, + afii57443: 0x0643, + afii57444: 0x0644, + afii57445: 0x0645, + afii57446: 0x0646, + afii57448: 0x0648, + afii57449: 0x0649, + afii57450: 0x064A, + afii57451: 0x064B, + afii57452: 0x064C, + afii57453: 0x064D, + afii57454: 0x064E, + afii57455: 0x064F, + afii57456: 0x0650, + afii57457: 0x0651, + afii57458: 0x0652, + afii57470: 0x0647, + afii57505: 0x06A4, + afii57506: 0x067E, + afii57507: 0x0686, + afii57508: 0x0698, + afii57509: 0x06AF, + afii57511: 0x0679, + afii57512: 0x0688, + afii57513: 0x0691, + afii57514: 0x06BA, + afii57519: 0x06D2, + afii57534: 0x06D5, + afii57636: 0x20AA, + afii57645: 0x05BE, + afii57658: 0x05C3, + afii57664: 0x05D0, + afii57665: 0x05D1, + afii57666: 0x05D2, + afii57667: 0x05D3, + afii57668: 0x05D4, + afii57669: 0x05D5, + afii57670: 0x05D6, + afii57671: 0x05D7, + afii57672: 0x05D8, + afii57673: 0x05D9, + afii57674: 0x05DA, + afii57675: 0x05DB, + afii57676: 0x05DC, + afii57677: 0x05DD, + afii57678: 0x05DE, + afii57679: 0x05DF, + afii57680: 0x05E0, + afii57681: 0x05E1, + afii57682: 0x05E2, + afii57683: 0x05E3, + afii57684: 0x05E4, + afii57685: 0x05E5, + afii57686: 0x05E6, + afii57687: 0x05E7, + afii57688: 0x05E8, + afii57689: 0x05E9, + afii57690: 0x05EA, + afii57694: 0xFB2A, + afii57695: 0xFB2B, + afii57700: 0xFB4B, + afii57705: 0xFB1F, + afii57716: 0x05F0, + afii57717: 0x05F1, + afii57718: 0x05F2, + afii57723: 0xFB35, + afii57793: 0x05B4, + afii57794: 0x05B5, + afii57795: 0x05B6, + afii57796: 0x05BB, + afii57797: 0x05B8, + afii57798: 0x05B7, + afii57799: 0x05B0, + afii57800: 0x05B2, + afii57801: 0x05B1, + afii57802: 0x05B3, + afii57803: 0x05C2, + afii57804: 0x05C1, + afii57806: 0x05B9, + afii57807: 0x05BC, + afii57839: 0x05BD, + afii57841: 0x05BF, + afii57842: 0x05C0, + afii57929: 0x02BC, + afii61248: 0x2105, + afii61289: 0x2113, + afii61352: 0x2116, + afii61573: 0x202C, + afii61574: 0x202D, + afii61575: 0x202E, + afii61664: 0x200C, + afii63167: 0x066D, + afii64937: 0x02BD, + agrave: 0x00E0, + agujarati: 0x0A85, + agurmukhi: 0x0A05, + ahiragana: 0x3042, + ahookabove: 0x1EA3, + aibengali: 0x0990, + aibopomofo: 0x311E, + aideva: 0x0910, + aiecyrillic: 0x04D5, + aigujarati: 0x0A90, + aigurmukhi: 0x0A10, + aimatragurmukhi: 0x0A48, + ainarabic: 0x0639, + ainfinalarabic: 0xFECA, + aininitialarabic: 0xFECB, + ainmedialarabic: 0xFECC, + ainvertedbreve: 0x0203, + aivowelsignbengali: 0x09C8, + aivowelsigndeva: 0x0948, + aivowelsigngujarati: 0x0AC8, + akatakana: 0x30A2, + akatakanahalfwidth: 0xFF71, + akorean: 0x314F, + alef: 0x05D0, + alefarabic: 0x0627, + alefdageshhebrew: 0xFB30, + aleffinalarabic: 0xFE8E, + alefhamzaabovearabic: 0x0623, + alefhamzaabovefinalarabic: 0xFE84, + alefhamzabelowarabic: 0x0625, + alefhamzabelowfinalarabic: 0xFE88, + alefhebrew: 0x05D0, + aleflamedhebrew: 0xFB4F, + alefmaddaabovearabic: 0x0622, + alefmaddaabovefinalarabic: 0xFE82, + alefmaksuraarabic: 0x0649, + alefmaksurafinalarabic: 0xFEF0, + alefmaksurainitialarabic: 0xFEF3, + alefmaksuramedialarabic: 0xFEF4, + alefpatahhebrew: 0xFB2E, + alefqamatshebrew: 0xFB2F, + aleph: 0x2135, + allequal: 0x224C, + alpha: 0x03B1, + alphatonos: 0x03AC, + amacron: 0x0101, + amonospace: 0xFF41, + ampersand: 0x0026, + ampersandmonospace: 0xFF06, + ampersandsmall: 0xF726, + amsquare: 0x33C2, + anbopomofo: 0x3122, + angbopomofo: 0x3124, + angbracketleft: 0x3008, // This glyph is missing from Adobe's original list. + angbracketright: 0x3009, // This glyph is missing from Adobe's original list. + angkhankhuthai: 0x0E5A, + angle: 0x2220, + anglebracketleft: 0x3008, + anglebracketleftvertical: 0xFE3F, + anglebracketright: 0x3009, + anglebracketrightvertical: 0xFE40, + angleleft: 0x2329, + angleright: 0x232A, + angstrom: 0x212B, + anoteleia: 0x0387, + anudattadeva: 0x0952, + anusvarabengali: 0x0982, + anusvaradeva: 0x0902, + anusvaragujarati: 0x0A82, + aogonek: 0x0105, + apaatosquare: 0x3300, + aparen: 0x249C, + apostrophearmenian: 0x055A, + apostrophemod: 0x02BC, + apple: 0xF8FF, + approaches: 0x2250, + approxequal: 0x2248, + approxequalorimage: 0x2252, + approximatelyequal: 0x2245, + araeaekorean: 0x318E, + araeakorean: 0x318D, + arc: 0x2312, + arighthalfring: 0x1E9A, + aring: 0x00E5, + aringacute: 0x01FB, + aringbelow: 0x1E01, + arrowboth: 0x2194, + arrowdashdown: 0x21E3, + arrowdashleft: 0x21E0, + arrowdashright: 0x21E2, + arrowdashup: 0x21E1, + arrowdblboth: 0x21D4, + arrowdbldown: 0x21D3, + arrowdblleft: 0x21D0, + arrowdblright: 0x21D2, + arrowdblup: 0x21D1, + arrowdown: 0x2193, + arrowdownleft: 0x2199, + arrowdownright: 0x2198, + arrowdownwhite: 0x21E9, + arrowheaddownmod: 0x02C5, + arrowheadleftmod: 0x02C2, + arrowheadrightmod: 0x02C3, + arrowheadupmod: 0x02C4, + arrowhorizex: 0xF8E7, + arrowleft: 0x2190, + arrowleftdbl: 0x21D0, + arrowleftdblstroke: 0x21CD, + arrowleftoverright: 0x21C6, + arrowleftwhite: 0x21E6, + arrowright: 0x2192, + arrowrightdblstroke: 0x21CF, + arrowrightheavy: 0x279E, + arrowrightoverleft: 0x21C4, + arrowrightwhite: 0x21E8, + arrowtableft: 0x21E4, + arrowtabright: 0x21E5, + arrowup: 0x2191, + arrowupdn: 0x2195, + arrowupdnbse: 0x21A8, + arrowupdownbase: 0x21A8, + arrowupleft: 0x2196, + arrowupleftofdown: 0x21C5, + arrowupright: 0x2197, + arrowupwhite: 0x21E7, + arrowvertex: 0xF8E6, + asciicircum: 0x005E, + asciicircummonospace: 0xFF3E, + asciitilde: 0x007E, + asciitildemonospace: 0xFF5E, + ascript: 0x0251, + ascriptturned: 0x0252, + asmallhiragana: 0x3041, + asmallkatakana: 0x30A1, + asmallkatakanahalfwidth: 0xFF67, + asterisk: 0x002A, + asteriskaltonearabic: 0x066D, + asteriskarabic: 0x066D, + asteriskmath: 0x2217, + asteriskmonospace: 0xFF0A, + asterisksmall: 0xFE61, + asterism: 0x2042, + asuperior: 0xF6E9, + asymptoticallyequal: 0x2243, + at: 0x0040, + atilde: 0x00E3, + atmonospace: 0xFF20, + atsmall: 0xFE6B, + aturned: 0x0250, + aubengali: 0x0994, + aubopomofo: 0x3120, + audeva: 0x0914, + augujarati: 0x0A94, + augurmukhi: 0x0A14, + aulengthmarkbengali: 0x09D7, + aumatragurmukhi: 0x0A4C, + auvowelsignbengali: 0x09CC, + auvowelsigndeva: 0x094C, + auvowelsigngujarati: 0x0ACC, + avagrahadeva: 0x093D, + aybarmenian: 0x0561, + ayin: 0x05E2, + ayinaltonehebrew: 0xFB20, + ayinhebrew: 0x05E2, + b: 0x0062, + babengali: 0x09AC, + backslash: 0x005C, + backslashmonospace: 0xFF3C, + badeva: 0x092C, + bagujarati: 0x0AAC, + bagurmukhi: 0x0A2C, + bahiragana: 0x3070, + bahtthai: 0x0E3F, + bakatakana: 0x30D0, + bar: 0x007C, + barmonospace: 0xFF5C, + bbopomofo: 0x3105, + bcircle: 0x24D1, + bdotaccent: 0x1E03, + bdotbelow: 0x1E05, + beamedsixteenthnotes: 0x266C, + because: 0x2235, + becyrillic: 0x0431, + beharabic: 0x0628, + behfinalarabic: 0xFE90, + behinitialarabic: 0xFE91, + behiragana: 0x3079, + behmedialarabic: 0xFE92, + behmeeminitialarabic: 0xFC9F, + behmeemisolatedarabic: 0xFC08, + behnoonfinalarabic: 0xFC6D, + bekatakana: 0x30D9, + benarmenian: 0x0562, + bet: 0x05D1, + beta: 0x03B2, + betasymbolgreek: 0x03D0, + betdagesh: 0xFB31, + betdageshhebrew: 0xFB31, + bethebrew: 0x05D1, + betrafehebrew: 0xFB4C, + bhabengali: 0x09AD, + bhadeva: 0x092D, + bhagujarati: 0x0AAD, + bhagurmukhi: 0x0A2D, + bhook: 0x0253, + bihiragana: 0x3073, + bikatakana: 0x30D3, + bilabialclick: 0x0298, + bindigurmukhi: 0x0A02, + birusquare: 0x3331, + blackcircle: 0x25CF, + blackdiamond: 0x25C6, + blackdownpointingtriangle: 0x25BC, + blackleftpointingpointer: 0x25C4, + blackleftpointingtriangle: 0x25C0, + blacklenticularbracketleft: 0x3010, + blacklenticularbracketleftvertical: 0xFE3B, + blacklenticularbracketright: 0x3011, + blacklenticularbracketrightvertical: 0xFE3C, + blacklowerlefttriangle: 0x25E3, + blacklowerrighttriangle: 0x25E2, + blackrectangle: 0x25AC, + blackrightpointingpointer: 0x25BA, + blackrightpointingtriangle: 0x25B6, + blacksmallsquare: 0x25AA, + blacksmilingface: 0x263B, + blacksquare: 0x25A0, + blackstar: 0x2605, + blackupperlefttriangle: 0x25E4, + blackupperrighttriangle: 0x25E5, + blackuppointingsmalltriangle: 0x25B4, + blackuppointingtriangle: 0x25B2, + blank: 0x2423, + blinebelow: 0x1E07, + block: 0x2588, + bmonospace: 0xFF42, + bobaimaithai: 0x0E1A, + bohiragana: 0x307C, + bokatakana: 0x30DC, + bparen: 0x249D, + bqsquare: 0x33C3, + braceex: 0xF8F4, + braceleft: 0x007B, + braceleftbt: 0xF8F3, + braceleftmid: 0xF8F2, + braceleftmonospace: 0xFF5B, + braceleftsmall: 0xFE5B, + bracelefttp: 0xF8F1, + braceleftvertical: 0xFE37, + braceright: 0x007D, + bracerightbt: 0xF8FE, + bracerightmid: 0xF8FD, + bracerightmonospace: 0xFF5D, + bracerightsmall: 0xFE5C, + bracerighttp: 0xF8FC, + bracerightvertical: 0xFE38, + bracketleft: 0x005B, + bracketleftbt: 0xF8F0, + bracketleftex: 0xF8EF, + bracketleftmonospace: 0xFF3B, + bracketlefttp: 0xF8EE, + bracketright: 0x005D, + bracketrightbt: 0xF8FB, + bracketrightex: 0xF8FA, + bracketrightmonospace: 0xFF3D, + bracketrighttp: 0xF8F9, + breve: 0x02D8, + brevebelowcmb: 0x032E, + brevecmb: 0x0306, + breveinvertedbelowcmb: 0x032F, + breveinvertedcmb: 0x0311, + breveinverteddoublecmb: 0x0361, + bridgebelowcmb: 0x032A, + bridgeinvertedbelowcmb: 0x033A, + brokenbar: 0x00A6, + bstroke: 0x0180, + bsuperior: 0xF6EA, + btopbar: 0x0183, + buhiragana: 0x3076, + bukatakana: 0x30D6, + bullet: 0x2022, + bulletinverse: 0x25D8, + bulletoperator: 0x2219, + bullseye: 0x25CE, + c: 0x0063, + caarmenian: 0x056E, + cabengali: 0x099A, + cacute: 0x0107, + cadeva: 0x091A, + cagujarati: 0x0A9A, + cagurmukhi: 0x0A1A, + calsquare: 0x3388, + candrabindubengali: 0x0981, + candrabinducmb: 0x0310, + candrabindudeva: 0x0901, + candrabindugujarati: 0x0A81, + capslock: 0x21EA, + careof: 0x2105, + caron: 0x02C7, + caronbelowcmb: 0x032C, + caroncmb: 0x030C, + carriagereturn: 0x21B5, + cbopomofo: 0x3118, + ccaron: 0x010D, + ccedilla: 0x00E7, + ccedillaacute: 0x1E09, + ccircle: 0x24D2, + ccircumflex: 0x0109, + ccurl: 0x0255, + cdot: 0x010B, + cdotaccent: 0x010B, + cdsquare: 0x33C5, + cedilla: 0x00B8, + cedillacmb: 0x0327, + cent: 0x00A2, + centigrade: 0x2103, + centinferior: 0xF6DF, + centmonospace: 0xFFE0, + centoldstyle: 0xF7A2, + centsuperior: 0xF6E0, + chaarmenian: 0x0579, + chabengali: 0x099B, + chadeva: 0x091B, + chagujarati: 0x0A9B, + chagurmukhi: 0x0A1B, + chbopomofo: 0x3114, + cheabkhasiancyrillic: 0x04BD, + checkmark: 0x2713, + checyrillic: 0x0447, + chedescenderabkhasiancyrillic: 0x04BF, + chedescendercyrillic: 0x04B7, + chedieresiscyrillic: 0x04F5, + cheharmenian: 0x0573, + chekhakassiancyrillic: 0x04CC, + cheverticalstrokecyrillic: 0x04B9, + chi: 0x03C7, + chieuchacirclekorean: 0x3277, + chieuchaparenkorean: 0x3217, + chieuchcirclekorean: 0x3269, + chieuchkorean: 0x314A, + chieuchparenkorean: 0x3209, + chochangthai: 0x0E0A, + chochanthai: 0x0E08, + chochingthai: 0x0E09, + chochoethai: 0x0E0C, + chook: 0x0188, + cieucacirclekorean: 0x3276, + cieucaparenkorean: 0x3216, + cieuccirclekorean: 0x3268, + cieuckorean: 0x3148, + cieucparenkorean: 0x3208, + cieucuparenkorean: 0x321C, + circle: 0x25CB, + circlecopyrt: 0x00A9, // This glyph is missing from Adobe's original list. + circlemultiply: 0x2297, + circleot: 0x2299, + circleplus: 0x2295, + circlepostalmark: 0x3036, + circlewithlefthalfblack: 0x25D0, + circlewithrighthalfblack: 0x25D1, + circumflex: 0x02C6, + circumflexbelowcmb: 0x032D, + circumflexcmb: 0x0302, + clear: 0x2327, + clickalveolar: 0x01C2, + clickdental: 0x01C0, + clicklateral: 0x01C1, + clickretroflex: 0x01C3, + club: 0x2663, + clubsuitblack: 0x2663, + clubsuitwhite: 0x2667, + cmcubedsquare: 0x33A4, + cmonospace: 0xFF43, + cmsquaredsquare: 0x33A0, + coarmenian: 0x0581, + colon: 0x003A, + colonmonetary: 0x20A1, + colonmonospace: 0xFF1A, + colonsign: 0x20A1, + colonsmall: 0xFE55, + colontriangularhalfmod: 0x02D1, + colontriangularmod: 0x02D0, + comma: 0x002C, + commaabovecmb: 0x0313, + commaaboverightcmb: 0x0315, + commaaccent: 0xF6C3, + commaarabic: 0x060C, + commaarmenian: 0x055D, + commainferior: 0xF6E1, + commamonospace: 0xFF0C, + commareversedabovecmb: 0x0314, + commareversedmod: 0x02BD, + commasmall: 0xFE50, + commasuperior: 0xF6E2, + commaturnedabovecmb: 0x0312, + commaturnedmod: 0x02BB, + compass: 0x263C, + congruent: 0x2245, + contourintegral: 0x222E, + control: 0x2303, + controlACK: 0x0006, + controlBEL: 0x0007, + controlBS: 0x0008, + controlCAN: 0x0018, + controlCR: 0x000D, + controlDC1: 0x0011, + controlDC2: 0x0012, + controlDC3: 0x0013, + controlDC4: 0x0014, + controlDEL: 0x007F, + controlDLE: 0x0010, + controlEM: 0x0019, + controlENQ: 0x0005, + controlEOT: 0x0004, + controlESC: 0x001B, + controlETB: 0x0017, + controlETX: 0x0003, + controlFF: 0x000C, + controlFS: 0x001C, + controlGS: 0x001D, + controlHT: 0x0009, + controlLF: 0x000A, + controlNAK: 0x0015, + controlRS: 0x001E, + controlSI: 0x000F, + controlSO: 0x000E, + controlSOT: 0x0002, + controlSTX: 0x0001, + controlSUB: 0x001A, + controlSYN: 0x0016, + controlUS: 0x001F, + controlVT: 0x000B, + copyright: 0x00A9, + copyrightsans: 0xF8E9, + copyrightserif: 0xF6D9, + cornerbracketleft: 0x300C, + cornerbracketlefthalfwidth: 0xFF62, + cornerbracketleftvertical: 0xFE41, + cornerbracketright: 0x300D, + cornerbracketrighthalfwidth: 0xFF63, + cornerbracketrightvertical: 0xFE42, + corporationsquare: 0x337F, + cosquare: 0x33C7, + coverkgsquare: 0x33C6, + cparen: 0x249E, + cruzeiro: 0x20A2, + cstretched: 0x0297, + curlyand: 0x22CF, + curlyor: 0x22CE, + currency: 0x00A4, + cyrBreve: 0xF6D1, + cyrFlex: 0xF6D2, + cyrbreve: 0xF6D4, + cyrflex: 0xF6D5, + d: 0x0064, + daarmenian: 0x0564, + dabengali: 0x09A6, + dadarabic: 0x0636, + dadeva: 0x0926, + dadfinalarabic: 0xFEBE, + dadinitialarabic: 0xFEBF, + dadmedialarabic: 0xFEC0, + dagesh: 0x05BC, + dageshhebrew: 0x05BC, + dagger: 0x2020, + daggerdbl: 0x2021, + dagujarati: 0x0AA6, + dagurmukhi: 0x0A26, + dahiragana: 0x3060, + dakatakana: 0x30C0, + dalarabic: 0x062F, + dalet: 0x05D3, + daletdagesh: 0xFB33, + daletdageshhebrew: 0xFB33, + dalethebrew: 0x05D3, + dalfinalarabic: 0xFEAA, + dammaarabic: 0x064F, + dammalowarabic: 0x064F, + dammatanaltonearabic: 0x064C, + dammatanarabic: 0x064C, + danda: 0x0964, + dargahebrew: 0x05A7, + dargalefthebrew: 0x05A7, + dasiapneumatacyrilliccmb: 0x0485, + dblGrave: 0xF6D3, + dblanglebracketleft: 0x300A, + dblanglebracketleftvertical: 0xFE3D, + dblanglebracketright: 0x300B, + dblanglebracketrightvertical: 0xFE3E, + dblarchinvertedbelowcmb: 0x032B, + dblarrowleft: 0x21D4, + dblarrowright: 0x21D2, + dbldanda: 0x0965, + dblgrave: 0xF6D6, + dblgravecmb: 0x030F, + dblintegral: 0x222C, + dbllowline: 0x2017, + dbllowlinecmb: 0x0333, + dbloverlinecmb: 0x033F, + dblprimemod: 0x02BA, + dblverticalbar: 0x2016, + dblverticallineabovecmb: 0x030E, + dbopomofo: 0x3109, + dbsquare: 0x33C8, + dcaron: 0x010F, + dcedilla: 0x1E11, + dcircle: 0x24D3, + dcircumflexbelow: 0x1E13, + dcroat: 0x0111, + ddabengali: 0x09A1, + ddadeva: 0x0921, + ddagujarati: 0x0AA1, + ddagurmukhi: 0x0A21, + ddalarabic: 0x0688, + ddalfinalarabic: 0xFB89, + dddhadeva: 0x095C, + ddhabengali: 0x09A2, + ddhadeva: 0x0922, + ddhagujarati: 0x0AA2, + ddhagurmukhi: 0x0A22, + ddotaccent: 0x1E0B, + ddotbelow: 0x1E0D, + decimalseparatorarabic: 0x066B, + decimalseparatorpersian: 0x066B, + decyrillic: 0x0434, + degree: 0x00B0, + dehihebrew: 0x05AD, + dehiragana: 0x3067, + deicoptic: 0x03EF, + dekatakana: 0x30C7, + deleteleft: 0x232B, + deleteright: 0x2326, + delta: 0x03B4, + deltaturned: 0x018D, + denominatorminusonenumeratorbengali: 0x09F8, + dezh: 0x02A4, + dhabengali: 0x09A7, + dhadeva: 0x0927, + dhagujarati: 0x0AA7, + dhagurmukhi: 0x0A27, + dhook: 0x0257, + dialytikatonos: 0x0385, + dialytikatonoscmb: 0x0344, + diamond: 0x2666, + diamondsuitwhite: 0x2662, + dieresis: 0x00A8, + dieresisacute: 0xF6D7, + dieresisbelowcmb: 0x0324, + dieresiscmb: 0x0308, + dieresisgrave: 0xF6D8, + dieresistonos: 0x0385, + dihiragana: 0x3062, + dikatakana: 0x30C2, + dittomark: 0x3003, + divide: 0x00F7, + divides: 0x2223, + divisionslash: 0x2215, + djecyrillic: 0x0452, + dkshade: 0x2593, + dlinebelow: 0x1E0F, + dlsquare: 0x3397, + dmacron: 0x0111, + dmonospace: 0xFF44, + dnblock: 0x2584, + dochadathai: 0x0E0E, + dodekthai: 0x0E14, + dohiragana: 0x3069, + dokatakana: 0x30C9, + dollar: 0x0024, + dollarinferior: 0xF6E3, + dollarmonospace: 0xFF04, + dollaroldstyle: 0xF724, + dollarsmall: 0xFE69, + dollarsuperior: 0xF6E4, + dong: 0x20AB, + dorusquare: 0x3326, + dotaccent: 0x02D9, + dotaccentcmb: 0x0307, + dotbelowcmb: 0x0323, + dotbelowcomb: 0x0323, + dotkatakana: 0x30FB, + dotlessi: 0x0131, + dotlessj: 0xF6BE, + dotlessjstrokehook: 0x0284, + dotmath: 0x22C5, + dottedcircle: 0x25CC, + doubleyodpatah: 0xFB1F, + doubleyodpatahhebrew: 0xFB1F, + downtackbelowcmb: 0x031E, + downtackmod: 0x02D5, + dparen: 0x249F, + dsuperior: 0xF6EB, + dtail: 0x0256, + dtopbar: 0x018C, + duhiragana: 0x3065, + dukatakana: 0x30C5, + dz: 0x01F3, + dzaltone: 0x02A3, + dzcaron: 0x01C6, + dzcurl: 0x02A5, + dzeabkhasiancyrillic: 0x04E1, + dzecyrillic: 0x0455, + dzhecyrillic: 0x045F, + e: 0x0065, + eacute: 0x00E9, + earth: 0x2641, + ebengali: 0x098F, + ebopomofo: 0x311C, + ebreve: 0x0115, + ecandradeva: 0x090D, + ecandragujarati: 0x0A8D, + ecandravowelsigndeva: 0x0945, + ecandravowelsigngujarati: 0x0AC5, + ecaron: 0x011B, + ecedillabreve: 0x1E1D, + echarmenian: 0x0565, + echyiwnarmenian: 0x0587, + ecircle: 0x24D4, + ecircumflex: 0x00EA, + ecircumflexacute: 0x1EBF, + ecircumflexbelow: 0x1E19, + ecircumflexdotbelow: 0x1EC7, + ecircumflexgrave: 0x1EC1, + ecircumflexhookabove: 0x1EC3, + ecircumflextilde: 0x1EC5, + ecyrillic: 0x0454, + edblgrave: 0x0205, + edeva: 0x090F, + edieresis: 0x00EB, + edot: 0x0117, + edotaccent: 0x0117, + edotbelow: 0x1EB9, + eegurmukhi: 0x0A0F, + eematragurmukhi: 0x0A47, + efcyrillic: 0x0444, + egrave: 0x00E8, + egujarati: 0x0A8F, + eharmenian: 0x0567, + ehbopomofo: 0x311D, + ehiragana: 0x3048, + ehookabove: 0x1EBB, + eibopomofo: 0x311F, + eight: 0x0038, + eightarabic: 0x0668, + eightbengali: 0x09EE, + eightcircle: 0x2467, + eightcircleinversesansserif: 0x2791, + eightdeva: 0x096E, + eighteencircle: 0x2471, + eighteenparen: 0x2485, + eighteenperiod: 0x2499, + eightgujarati: 0x0AEE, + eightgurmukhi: 0x0A6E, + eighthackarabic: 0x0668, + eighthangzhou: 0x3028, + eighthnotebeamed: 0x266B, + eightideographicparen: 0x3227, + eightinferior: 0x2088, + eightmonospace: 0xFF18, + eightoldstyle: 0xF738, + eightparen: 0x247B, + eightperiod: 0x248F, + eightpersian: 0x06F8, + eightroman: 0x2177, + eightsuperior: 0x2078, + eightthai: 0x0E58, + einvertedbreve: 0x0207, + eiotifiedcyrillic: 0x0465, + ekatakana: 0x30A8, + ekatakanahalfwidth: 0xFF74, + ekonkargurmukhi: 0x0A74, + ekorean: 0x3154, + elcyrillic: 0x043B, + element: 0x2208, + elevencircle: 0x246A, + elevenparen: 0x247E, + elevenperiod: 0x2492, + elevenroman: 0x217A, + ellipsis: 0x2026, + ellipsisvertical: 0x22EE, + emacron: 0x0113, + emacronacute: 0x1E17, + emacrongrave: 0x1E15, + emcyrillic: 0x043C, + emdash: 0x2014, + emdashvertical: 0xFE31, + emonospace: 0xFF45, + emphasismarkarmenian: 0x055B, + emptyset: 0x2205, + enbopomofo: 0x3123, + encyrillic: 0x043D, + endash: 0x2013, + endashvertical: 0xFE32, + endescendercyrillic: 0x04A3, + eng: 0x014B, + engbopomofo: 0x3125, + enghecyrillic: 0x04A5, + enhookcyrillic: 0x04C8, + enspace: 0x2002, + eogonek: 0x0119, + eokorean: 0x3153, + eopen: 0x025B, + eopenclosed: 0x029A, + eopenreversed: 0x025C, + eopenreversedclosed: 0x025E, + eopenreversedhook: 0x025D, + eparen: 0x24A0, + epsilon: 0x03B5, + epsilontonos: 0x03AD, + equal: 0x003D, + equalmonospace: 0xFF1D, + equalsmall: 0xFE66, + equalsuperior: 0x207C, + equivalence: 0x2261, + erbopomofo: 0x3126, + ercyrillic: 0x0440, + ereversed: 0x0258, + ereversedcyrillic: 0x044D, + escyrillic: 0x0441, + esdescendercyrillic: 0x04AB, + esh: 0x0283, + eshcurl: 0x0286, + eshortdeva: 0x090E, + eshortvowelsigndeva: 0x0946, + eshreversedloop: 0x01AA, + eshsquatreversed: 0x0285, + esmallhiragana: 0x3047, + esmallkatakana: 0x30A7, + esmallkatakanahalfwidth: 0xFF6A, + estimated: 0x212E, + esuperior: 0xF6EC, + eta: 0x03B7, + etarmenian: 0x0568, + etatonos: 0x03AE, + eth: 0x00F0, + etilde: 0x1EBD, + etildebelow: 0x1E1B, + etnahtafoukhhebrew: 0x0591, + etnahtafoukhlefthebrew: 0x0591, + etnahtahebrew: 0x0591, + etnahtalefthebrew: 0x0591, + eturned: 0x01DD, + eukorean: 0x3161, + euro: 0x20AC, + evowelsignbengali: 0x09C7, + evowelsigndeva: 0x0947, + evowelsigngujarati: 0x0AC7, + exclam: 0x0021, + exclamarmenian: 0x055C, + exclamdbl: 0x203C, + exclamdown: 0x00A1, + exclamdownsmall: 0xF7A1, + exclammonospace: 0xFF01, + exclamsmall: 0xF721, + existential: 0x2203, + ezh: 0x0292, + ezhcaron: 0x01EF, + ezhcurl: 0x0293, + ezhreversed: 0x01B9, + ezhtail: 0x01BA, + f: 0x0066, + fadeva: 0x095E, + fagurmukhi: 0x0A5E, + fahrenheit: 0x2109, + fathaarabic: 0x064E, + fathalowarabic: 0x064E, + fathatanarabic: 0x064B, + fbopomofo: 0x3108, + fcircle: 0x24D5, + fdotaccent: 0x1E1F, + feharabic: 0x0641, + feharmenian: 0x0586, + fehfinalarabic: 0xFED2, + fehinitialarabic: 0xFED3, + fehmedialarabic: 0xFED4, + feicoptic: 0x03E5, + female: 0x2640, + ff: 0xFB00, + ffi: 0xFB03, + ffl: 0xFB04, + fi: 0xFB01, + fifteencircle: 0x246E, + fifteenparen: 0x2482, + fifteenperiod: 0x2496, + figuredash: 0x2012, + filledbox: 0x25A0, + filledrect: 0x25AC, + finalkaf: 0x05DA, + finalkafdagesh: 0xFB3A, + finalkafdageshhebrew: 0xFB3A, + finalkafhebrew: 0x05DA, + finalmem: 0x05DD, + finalmemhebrew: 0x05DD, + finalnun: 0x05DF, + finalnunhebrew: 0x05DF, + finalpe: 0x05E3, + finalpehebrew: 0x05E3, + finaltsadi: 0x05E5, + finaltsadihebrew: 0x05E5, + firsttonechinese: 0x02C9, + fisheye: 0x25C9, + fitacyrillic: 0x0473, + five: 0x0035, + fivearabic: 0x0665, + fivebengali: 0x09EB, + fivecircle: 0x2464, + fivecircleinversesansserif: 0x278E, + fivedeva: 0x096B, + fiveeighths: 0x215D, + fivegujarati: 0x0AEB, + fivegurmukhi: 0x0A6B, + fivehackarabic: 0x0665, + fivehangzhou: 0x3025, + fiveideographicparen: 0x3224, + fiveinferior: 0x2085, + fivemonospace: 0xFF15, + fiveoldstyle: 0xF735, + fiveparen: 0x2478, + fiveperiod: 0x248C, + fivepersian: 0x06F5, + fiveroman: 0x2174, + fivesuperior: 0x2075, + fivethai: 0x0E55, + fl: 0xFB02, + florin: 0x0192, + fmonospace: 0xFF46, + fmsquare: 0x3399, + fofanthai: 0x0E1F, + fofathai: 0x0E1D, + fongmanthai: 0x0E4F, + forall: 0x2200, + four: 0x0034, + fourarabic: 0x0664, + fourbengali: 0x09EA, + fourcircle: 0x2463, + fourcircleinversesansserif: 0x278D, + fourdeva: 0x096A, + fourgujarati: 0x0AEA, + fourgurmukhi: 0x0A6A, + fourhackarabic: 0x0664, + fourhangzhou: 0x3024, + fourideographicparen: 0x3223, + fourinferior: 0x2084, + fourmonospace: 0xFF14, + fournumeratorbengali: 0x09F7, + fouroldstyle: 0xF734, + fourparen: 0x2477, + fourperiod: 0x248B, + fourpersian: 0x06F4, + fourroman: 0x2173, + foursuperior: 0x2074, + fourteencircle: 0x246D, + fourteenparen: 0x2481, + fourteenperiod: 0x2495, + fourthai: 0x0E54, + fourthtonechinese: 0x02CB, + fparen: 0x24A1, + fraction: 0x2044, + franc: 0x20A3, + g: 0x0067, + gabengali: 0x0997, + gacute: 0x01F5, + gadeva: 0x0917, + gafarabic: 0x06AF, + gaffinalarabic: 0xFB93, + gafinitialarabic: 0xFB94, + gafmedialarabic: 0xFB95, + gagujarati: 0x0A97, + gagurmukhi: 0x0A17, + gahiragana: 0x304C, + gakatakana: 0x30AC, + gamma: 0x03B3, + gammalatinsmall: 0x0263, + gammasuperior: 0x02E0, + gangiacoptic: 0x03EB, + gbopomofo: 0x310D, + gbreve: 0x011F, + gcaron: 0x01E7, + gcedilla: 0x0123, + gcircle: 0x24D6, + gcircumflex: 0x011D, + gcommaaccent: 0x0123, + gdot: 0x0121, + gdotaccent: 0x0121, + gecyrillic: 0x0433, + gehiragana: 0x3052, + gekatakana: 0x30B2, + geometricallyequal: 0x2251, + gereshaccenthebrew: 0x059C, + gereshhebrew: 0x05F3, + gereshmuqdamhebrew: 0x059D, + germandbls: 0x00DF, + gershayimaccenthebrew: 0x059E, + gershayimhebrew: 0x05F4, + getamark: 0x3013, + ghabengali: 0x0998, + ghadarmenian: 0x0572, + ghadeva: 0x0918, + ghagujarati: 0x0A98, + ghagurmukhi: 0x0A18, + ghainarabic: 0x063A, + ghainfinalarabic: 0xFECE, + ghaininitialarabic: 0xFECF, + ghainmedialarabic: 0xFED0, + ghemiddlehookcyrillic: 0x0495, + ghestrokecyrillic: 0x0493, + gheupturncyrillic: 0x0491, + ghhadeva: 0x095A, + ghhagurmukhi: 0x0A5A, + ghook: 0x0260, + ghzsquare: 0x3393, + gihiragana: 0x304E, + gikatakana: 0x30AE, + gimarmenian: 0x0563, + gimel: 0x05D2, + gimeldagesh: 0xFB32, + gimeldageshhebrew: 0xFB32, + gimelhebrew: 0x05D2, + gjecyrillic: 0x0453, + glottalinvertedstroke: 0x01BE, + glottalstop: 0x0294, + glottalstopinverted: 0x0296, + glottalstopmod: 0x02C0, + glottalstopreversed: 0x0295, + glottalstopreversedmod: 0x02C1, + glottalstopreversedsuperior: 0x02E4, + glottalstopstroke: 0x02A1, + glottalstopstrokereversed: 0x02A2, + gmacron: 0x1E21, + gmonospace: 0xFF47, + gohiragana: 0x3054, + gokatakana: 0x30B4, + gparen: 0x24A2, + gpasquare: 0x33AC, + gradient: 0x2207, + grave: 0x0060, + gravebelowcmb: 0x0316, + gravecmb: 0x0300, + gravecomb: 0x0300, + gravedeva: 0x0953, + gravelowmod: 0x02CE, + gravemonospace: 0xFF40, + gravetonecmb: 0x0340, + greater: 0x003E, + greaterequal: 0x2265, + greaterequalorless: 0x22DB, + greatermonospace: 0xFF1E, + greaterorequivalent: 0x2273, + greaterorless: 0x2277, + greateroverequal: 0x2267, + greatersmall: 0xFE65, + gscript: 0x0261, + gstroke: 0x01E5, + guhiragana: 0x3050, + guillemotleft: 0x00AB, + guillemotright: 0x00BB, + guilsinglleft: 0x2039, + guilsinglright: 0x203A, + gukatakana: 0x30B0, + guramusquare: 0x3318, + gysquare: 0x33C9, + h: 0x0068, + haabkhasiancyrillic: 0x04A9, + haaltonearabic: 0x06C1, + habengali: 0x09B9, + hadescendercyrillic: 0x04B3, + hadeva: 0x0939, + hagujarati: 0x0AB9, + hagurmukhi: 0x0A39, + haharabic: 0x062D, + hahfinalarabic: 0xFEA2, + hahinitialarabic: 0xFEA3, + hahiragana: 0x306F, + hahmedialarabic: 0xFEA4, + haitusquare: 0x332A, + hakatakana: 0x30CF, + hakatakanahalfwidth: 0xFF8A, + halantgurmukhi: 0x0A4D, + hamzaarabic: 0x0621, + hamzalowarabic: 0x0621, + hangulfiller: 0x3164, + hardsigncyrillic: 0x044A, + harpoonleftbarbup: 0x21BC, + harpoonrightbarbup: 0x21C0, + hasquare: 0x33CA, + hatafpatah: 0x05B2, + hatafpatah16: 0x05B2, + hatafpatah23: 0x05B2, + hatafpatah2f: 0x05B2, + hatafpatahhebrew: 0x05B2, + hatafpatahnarrowhebrew: 0x05B2, + hatafpatahquarterhebrew: 0x05B2, + hatafpatahwidehebrew: 0x05B2, + hatafqamats: 0x05B3, + hatafqamats1b: 0x05B3, + hatafqamats28: 0x05B3, + hatafqamats34: 0x05B3, + hatafqamatshebrew: 0x05B3, + hatafqamatsnarrowhebrew: 0x05B3, + hatafqamatsquarterhebrew: 0x05B3, + hatafqamatswidehebrew: 0x05B3, + hatafsegol: 0x05B1, + hatafsegol17: 0x05B1, + hatafsegol24: 0x05B1, + hatafsegol30: 0x05B1, + hatafsegolhebrew: 0x05B1, + hatafsegolnarrowhebrew: 0x05B1, + hatafsegolquarterhebrew: 0x05B1, + hatafsegolwidehebrew: 0x05B1, + hbar: 0x0127, + hbopomofo: 0x310F, + hbrevebelow: 0x1E2B, + hcedilla: 0x1E29, + hcircle: 0x24D7, + hcircumflex: 0x0125, + hdieresis: 0x1E27, + hdotaccent: 0x1E23, + hdotbelow: 0x1E25, + he: 0x05D4, + heart: 0x2665, + heartsuitblack: 0x2665, + heartsuitwhite: 0x2661, + hedagesh: 0xFB34, + hedageshhebrew: 0xFB34, + hehaltonearabic: 0x06C1, + heharabic: 0x0647, + hehebrew: 0x05D4, + hehfinalaltonearabic: 0xFBA7, + hehfinalalttwoarabic: 0xFEEA, + hehfinalarabic: 0xFEEA, + hehhamzaabovefinalarabic: 0xFBA5, + hehhamzaaboveisolatedarabic: 0xFBA4, + hehinitialaltonearabic: 0xFBA8, + hehinitialarabic: 0xFEEB, + hehiragana: 0x3078, + hehmedialaltonearabic: 0xFBA9, + hehmedialarabic: 0xFEEC, + heiseierasquare: 0x337B, + hekatakana: 0x30D8, + hekatakanahalfwidth: 0xFF8D, + hekutaarusquare: 0x3336, + henghook: 0x0267, + herutusquare: 0x3339, + het: 0x05D7, + hethebrew: 0x05D7, + hhook: 0x0266, + hhooksuperior: 0x02B1, + hieuhacirclekorean: 0x327B, + hieuhaparenkorean: 0x321B, + hieuhcirclekorean: 0x326D, + hieuhkorean: 0x314E, + hieuhparenkorean: 0x320D, + hihiragana: 0x3072, + hikatakana: 0x30D2, + hikatakanahalfwidth: 0xFF8B, + hiriq: 0x05B4, + hiriq14: 0x05B4, + hiriq21: 0x05B4, + hiriq2d: 0x05B4, + hiriqhebrew: 0x05B4, + hiriqnarrowhebrew: 0x05B4, + hiriqquarterhebrew: 0x05B4, + hiriqwidehebrew: 0x05B4, + hlinebelow: 0x1E96, + hmonospace: 0xFF48, + hoarmenian: 0x0570, + hohipthai: 0x0E2B, + hohiragana: 0x307B, + hokatakana: 0x30DB, + hokatakanahalfwidth: 0xFF8E, + holam: 0x05B9, + holam19: 0x05B9, + holam26: 0x05B9, + holam32: 0x05B9, + holamhebrew: 0x05B9, + holamnarrowhebrew: 0x05B9, + holamquarterhebrew: 0x05B9, + holamwidehebrew: 0x05B9, + honokhukthai: 0x0E2E, + hookabovecomb: 0x0309, + hookcmb: 0x0309, + hookpalatalizedbelowcmb: 0x0321, + hookretroflexbelowcmb: 0x0322, + hoonsquare: 0x3342, + horicoptic: 0x03E9, + horizontalbar: 0x2015, + horncmb: 0x031B, + hotsprings: 0x2668, + house: 0x2302, + hparen: 0x24A3, + hsuperior: 0x02B0, + hturned: 0x0265, + huhiragana: 0x3075, + huiitosquare: 0x3333, + hukatakana: 0x30D5, + hukatakanahalfwidth: 0xFF8C, + hungarumlaut: 0x02DD, + hungarumlautcmb: 0x030B, + hv: 0x0195, + hyphen: 0x002D, + hypheninferior: 0xF6E5, + hyphenmonospace: 0xFF0D, + hyphensmall: 0xFE63, + hyphensuperior: 0xF6E6, + hyphentwo: 0x2010, + i: 0x0069, + iacute: 0x00ED, + iacyrillic: 0x044F, + ibengali: 0x0987, + ibopomofo: 0x3127, + ibreve: 0x012D, + icaron: 0x01D0, + icircle: 0x24D8, + icircumflex: 0x00EE, + icyrillic: 0x0456, + idblgrave: 0x0209, + ideographearthcircle: 0x328F, + ideographfirecircle: 0x328B, + ideographicallianceparen: 0x323F, + ideographiccallparen: 0x323A, + ideographiccentrecircle: 0x32A5, + ideographicclose: 0x3006, + ideographiccomma: 0x3001, + ideographiccommaleft: 0xFF64, + ideographiccongratulationparen: 0x3237, + ideographiccorrectcircle: 0x32A3, + ideographicearthparen: 0x322F, + ideographicenterpriseparen: 0x323D, + ideographicexcellentcircle: 0x329D, + ideographicfestivalparen: 0x3240, + ideographicfinancialcircle: 0x3296, + ideographicfinancialparen: 0x3236, + ideographicfireparen: 0x322B, + ideographichaveparen: 0x3232, + ideographichighcircle: 0x32A4, + ideographiciterationmark: 0x3005, + ideographiclaborcircle: 0x3298, + ideographiclaborparen: 0x3238, + ideographicleftcircle: 0x32A7, + ideographiclowcircle: 0x32A6, + ideographicmedicinecircle: 0x32A9, + ideographicmetalparen: 0x322E, + ideographicmoonparen: 0x322A, + ideographicnameparen: 0x3234, + ideographicperiod: 0x3002, + ideographicprintcircle: 0x329E, + ideographicreachparen: 0x3243, + ideographicrepresentparen: 0x3239, + ideographicresourceparen: 0x323E, + ideographicrightcircle: 0x32A8, + ideographicsecretcircle: 0x3299, + ideographicselfparen: 0x3242, + ideographicsocietyparen: 0x3233, + ideographicspace: 0x3000, + ideographicspecialparen: 0x3235, + ideographicstockparen: 0x3231, + ideographicstudyparen: 0x323B, + ideographicsunparen: 0x3230, + ideographicsuperviseparen: 0x323C, + ideographicwaterparen: 0x322C, + ideographicwoodparen: 0x322D, + ideographiczero: 0x3007, + ideographmetalcircle: 0x328E, + ideographmooncircle: 0x328A, + ideographnamecircle: 0x3294, + ideographsuncircle: 0x3290, + ideographwatercircle: 0x328C, + ideographwoodcircle: 0x328D, + ideva: 0x0907, + idieresis: 0x00EF, + idieresisacute: 0x1E2F, + idieresiscyrillic: 0x04E5, + idotbelow: 0x1ECB, + iebrevecyrillic: 0x04D7, + iecyrillic: 0x0435, + ieungacirclekorean: 0x3275, + ieungaparenkorean: 0x3215, + ieungcirclekorean: 0x3267, + ieungkorean: 0x3147, + ieungparenkorean: 0x3207, + igrave: 0x00EC, + igujarati: 0x0A87, + igurmukhi: 0x0A07, + ihiragana: 0x3044, + ihookabove: 0x1EC9, + iibengali: 0x0988, + iicyrillic: 0x0438, + iideva: 0x0908, + iigujarati: 0x0A88, + iigurmukhi: 0x0A08, + iimatragurmukhi: 0x0A40, + iinvertedbreve: 0x020B, + iishortcyrillic: 0x0439, + iivowelsignbengali: 0x09C0, + iivowelsigndeva: 0x0940, + iivowelsigngujarati: 0x0AC0, + ij: 0x0133, + ikatakana: 0x30A4, + ikatakanahalfwidth: 0xFF72, + ikorean: 0x3163, + ilde: 0x02DC, + iluyhebrew: 0x05AC, + imacron: 0x012B, + imacroncyrillic: 0x04E3, + imageorapproximatelyequal: 0x2253, + imatragurmukhi: 0x0A3F, + imonospace: 0xFF49, + increment: 0x2206, + infinity: 0x221E, + iniarmenian: 0x056B, + integral: 0x222B, + integralbottom: 0x2321, + integralbt: 0x2321, + integralex: 0xF8F5, + integraltop: 0x2320, + integraltp: 0x2320, + intersection: 0x2229, + intisquare: 0x3305, + invbullet: 0x25D8, + invcircle: 0x25D9, + invsmileface: 0x263B, + iocyrillic: 0x0451, + iogonek: 0x012F, + iota: 0x03B9, + iotadieresis: 0x03CA, + iotadieresistonos: 0x0390, + iotalatin: 0x0269, + iotatonos: 0x03AF, + iparen: 0x24A4, + irigurmukhi: 0x0A72, + ismallhiragana: 0x3043, + ismallkatakana: 0x30A3, + ismallkatakanahalfwidth: 0xFF68, + issharbengali: 0x09FA, + istroke: 0x0268, + isuperior: 0xF6ED, + iterationhiragana: 0x309D, + iterationkatakana: 0x30FD, + itilde: 0x0129, + itildebelow: 0x1E2D, + iubopomofo: 0x3129, + iucyrillic: 0x044E, + ivowelsignbengali: 0x09BF, + ivowelsigndeva: 0x093F, + ivowelsigngujarati: 0x0ABF, + izhitsacyrillic: 0x0475, + izhitsadblgravecyrillic: 0x0477, + j: 0x006A, + jaarmenian: 0x0571, + jabengali: 0x099C, + jadeva: 0x091C, + jagujarati: 0x0A9C, + jagurmukhi: 0x0A1C, + jbopomofo: 0x3110, + jcaron: 0x01F0, + jcircle: 0x24D9, + jcircumflex: 0x0135, + jcrossedtail: 0x029D, + jdotlessstroke: 0x025F, + jecyrillic: 0x0458, + jeemarabic: 0x062C, + jeemfinalarabic: 0xFE9E, + jeeminitialarabic: 0xFE9F, + jeemmedialarabic: 0xFEA0, + jeharabic: 0x0698, + jehfinalarabic: 0xFB8B, + jhabengali: 0x099D, + jhadeva: 0x091D, + jhagujarati: 0x0A9D, + jhagurmukhi: 0x0A1D, + jheharmenian: 0x057B, + jis: 0x3004, + jmonospace: 0xFF4A, + jparen: 0x24A5, + jsuperior: 0x02B2, + k: 0x006B, + kabashkircyrillic: 0x04A1, + kabengali: 0x0995, + kacute: 0x1E31, + kacyrillic: 0x043A, + kadescendercyrillic: 0x049B, + kadeva: 0x0915, + kaf: 0x05DB, + kafarabic: 0x0643, + kafdagesh: 0xFB3B, + kafdageshhebrew: 0xFB3B, + kaffinalarabic: 0xFEDA, + kafhebrew: 0x05DB, + kafinitialarabic: 0xFEDB, + kafmedialarabic: 0xFEDC, + kafrafehebrew: 0xFB4D, + kagujarati: 0x0A95, + kagurmukhi: 0x0A15, + kahiragana: 0x304B, + kahookcyrillic: 0x04C4, + kakatakana: 0x30AB, + kakatakanahalfwidth: 0xFF76, + kappa: 0x03BA, + kappasymbolgreek: 0x03F0, + kapyeounmieumkorean: 0x3171, + kapyeounphieuphkorean: 0x3184, + kapyeounpieupkorean: 0x3178, + kapyeounssangpieupkorean: 0x3179, + karoriisquare: 0x330D, + kashidaautoarabic: 0x0640, + kashidaautonosidebearingarabic: 0x0640, + kasmallkatakana: 0x30F5, + kasquare: 0x3384, + kasraarabic: 0x0650, + kasratanarabic: 0x064D, + kastrokecyrillic: 0x049F, + katahiraprolongmarkhalfwidth: 0xFF70, + kaverticalstrokecyrillic: 0x049D, + kbopomofo: 0x310E, + kcalsquare: 0x3389, + kcaron: 0x01E9, + kcedilla: 0x0137, + kcircle: 0x24DA, + kcommaaccent: 0x0137, + kdotbelow: 0x1E33, + keharmenian: 0x0584, + kehiragana: 0x3051, + kekatakana: 0x30B1, + kekatakanahalfwidth: 0xFF79, + kenarmenian: 0x056F, + kesmallkatakana: 0x30F6, + kgreenlandic: 0x0138, + khabengali: 0x0996, + khacyrillic: 0x0445, + khadeva: 0x0916, + khagujarati: 0x0A96, + khagurmukhi: 0x0A16, + khaharabic: 0x062E, + khahfinalarabic: 0xFEA6, + khahinitialarabic: 0xFEA7, + khahmedialarabic: 0xFEA8, + kheicoptic: 0x03E7, + khhadeva: 0x0959, + khhagurmukhi: 0x0A59, + khieukhacirclekorean: 0x3278, + khieukhaparenkorean: 0x3218, + khieukhcirclekorean: 0x326A, + khieukhkorean: 0x314B, + khieukhparenkorean: 0x320A, + khokhaithai: 0x0E02, + khokhonthai: 0x0E05, + khokhuatthai: 0x0E03, + khokhwaithai: 0x0E04, + khomutthai: 0x0E5B, + khook: 0x0199, + khorakhangthai: 0x0E06, + khzsquare: 0x3391, + kihiragana: 0x304D, + kikatakana: 0x30AD, + kikatakanahalfwidth: 0xFF77, + kiroguramusquare: 0x3315, + kiromeetorusquare: 0x3316, + kirosquare: 0x3314, + kiyeokacirclekorean: 0x326E, + kiyeokaparenkorean: 0x320E, + kiyeokcirclekorean: 0x3260, + kiyeokkorean: 0x3131, + kiyeokparenkorean: 0x3200, + kiyeoksioskorean: 0x3133, + kjecyrillic: 0x045C, + klinebelow: 0x1E35, + klsquare: 0x3398, + kmcubedsquare: 0x33A6, + kmonospace: 0xFF4B, + kmsquaredsquare: 0x33A2, + kohiragana: 0x3053, + kohmsquare: 0x33C0, + kokaithai: 0x0E01, + kokatakana: 0x30B3, + kokatakanahalfwidth: 0xFF7A, + kooposquare: 0x331E, + koppacyrillic: 0x0481, + koreanstandardsymbol: 0x327F, + koroniscmb: 0x0343, + kparen: 0x24A6, + kpasquare: 0x33AA, + ksicyrillic: 0x046F, + ktsquare: 0x33CF, + kturned: 0x029E, + kuhiragana: 0x304F, + kukatakana: 0x30AF, + kukatakanahalfwidth: 0xFF78, + kvsquare: 0x33B8, + kwsquare: 0x33BE, + l: 0x006C, + labengali: 0x09B2, + lacute: 0x013A, + ladeva: 0x0932, + lagujarati: 0x0AB2, + lagurmukhi: 0x0A32, + lakkhangyaothai: 0x0E45, + lamaleffinalarabic: 0xFEFC, + lamalefhamzaabovefinalarabic: 0xFEF8, + lamalefhamzaaboveisolatedarabic: 0xFEF7, + lamalefhamzabelowfinalarabic: 0xFEFA, + lamalefhamzabelowisolatedarabic: 0xFEF9, + lamalefisolatedarabic: 0xFEFB, + lamalefmaddaabovefinalarabic: 0xFEF6, + lamalefmaddaaboveisolatedarabic: 0xFEF5, + lamarabic: 0x0644, + lambda: 0x03BB, + lambdastroke: 0x019B, + lamed: 0x05DC, + lameddagesh: 0xFB3C, + lameddageshhebrew: 0xFB3C, + lamedhebrew: 0x05DC, + lamfinalarabic: 0xFEDE, + lamhahinitialarabic: 0xFCCA, + laminitialarabic: 0xFEDF, + lamjeeminitialarabic: 0xFCC9, + lamkhahinitialarabic: 0xFCCB, + lamlamhehisolatedarabic: 0xFDF2, + lammedialarabic: 0xFEE0, + lammeemhahinitialarabic: 0xFD88, + lammeeminitialarabic: 0xFCCC, + largecircle: 0x25EF, + lbar: 0x019A, + lbelt: 0x026C, + lbopomofo: 0x310C, + lcaron: 0x013E, + lcedilla: 0x013C, + lcircle: 0x24DB, + lcircumflexbelow: 0x1E3D, + lcommaaccent: 0x013C, + ldot: 0x0140, + ldotaccent: 0x0140, + ldotbelow: 0x1E37, + ldotbelowmacron: 0x1E39, + leftangleabovecmb: 0x031A, + lefttackbelowcmb: 0x0318, + less: 0x003C, + lessequal: 0x2264, + lessequalorgreater: 0x22DA, + lessmonospace: 0xFF1C, + lessorequivalent: 0x2272, + lessorgreater: 0x2276, + lessoverequal: 0x2266, + lesssmall: 0xFE64, + lezh: 0x026E, + lfblock: 0x258C, + lhookretroflex: 0x026D, + lira: 0x20A4, + liwnarmenian: 0x056C, + lj: 0x01C9, + ljecyrillic: 0x0459, + ll: 0xF6C0, + lladeva: 0x0933, + llagujarati: 0x0AB3, + llinebelow: 0x1E3B, + llladeva: 0x0934, + llvocalicbengali: 0x09E1, + llvocalicdeva: 0x0961, + llvocalicvowelsignbengali: 0x09E3, + llvocalicvowelsigndeva: 0x0963, + lmiddletilde: 0x026B, + lmonospace: 0xFF4C, + lmsquare: 0x33D0, + lochulathai: 0x0E2C, + logicaland: 0x2227, + logicalnot: 0x00AC, + logicalnotreversed: 0x2310, + logicalor: 0x2228, + lolingthai: 0x0E25, + longs: 0x017F, + lowlinecenterline: 0xFE4E, + lowlinecmb: 0x0332, + lowlinedashed: 0xFE4D, + lozenge: 0x25CA, + lparen: 0x24A7, + lslash: 0x0142, + lsquare: 0x2113, + lsuperior: 0xF6EE, + ltshade: 0x2591, + luthai: 0x0E26, + lvocalicbengali: 0x098C, + lvocalicdeva: 0x090C, + lvocalicvowelsignbengali: 0x09E2, + lvocalicvowelsigndeva: 0x0962, + lxsquare: 0x33D3, + m: 0x006D, + mabengali: 0x09AE, + macron: 0x00AF, + macronbelowcmb: 0x0331, + macroncmb: 0x0304, + macronlowmod: 0x02CD, + macronmonospace: 0xFFE3, + macute: 0x1E3F, + madeva: 0x092E, + magujarati: 0x0AAE, + magurmukhi: 0x0A2E, + mahapakhhebrew: 0x05A4, + mahapakhlefthebrew: 0x05A4, + mahiragana: 0x307E, + maichattawalowleftthai: 0xF895, + maichattawalowrightthai: 0xF894, + maichattawathai: 0x0E4B, + maichattawaupperleftthai: 0xF893, + maieklowleftthai: 0xF88C, + maieklowrightthai: 0xF88B, + maiekthai: 0x0E48, + maiekupperleftthai: 0xF88A, + maihanakatleftthai: 0xF884, + maihanakatthai: 0x0E31, + maitaikhuleftthai: 0xF889, + maitaikhuthai: 0x0E47, + maitholowleftthai: 0xF88F, + maitholowrightthai: 0xF88E, + maithothai: 0x0E49, + maithoupperleftthai: 0xF88D, + maitrilowleftthai: 0xF892, + maitrilowrightthai: 0xF891, + maitrithai: 0x0E4A, + maitriupperleftthai: 0xF890, + maiyamokthai: 0x0E46, + makatakana: 0x30DE, + makatakanahalfwidth: 0xFF8F, + male: 0x2642, + mansyonsquare: 0x3347, + maqafhebrew: 0x05BE, + mars: 0x2642, + masoracirclehebrew: 0x05AF, + masquare: 0x3383, + mbopomofo: 0x3107, + mbsquare: 0x33D4, + mcircle: 0x24DC, + mcubedsquare: 0x33A5, + mdotaccent: 0x1E41, + mdotbelow: 0x1E43, + meemarabic: 0x0645, + meemfinalarabic: 0xFEE2, + meeminitialarabic: 0xFEE3, + meemmedialarabic: 0xFEE4, + meemmeeminitialarabic: 0xFCD1, + meemmeemisolatedarabic: 0xFC48, + meetorusquare: 0x334D, + mehiragana: 0x3081, + meizierasquare: 0x337E, + mekatakana: 0x30E1, + mekatakanahalfwidth: 0xFF92, + mem: 0x05DE, + memdagesh: 0xFB3E, + memdageshhebrew: 0xFB3E, + memhebrew: 0x05DE, + menarmenian: 0x0574, + merkhahebrew: 0x05A5, + merkhakefulahebrew: 0x05A6, + merkhakefulalefthebrew: 0x05A6, + merkhalefthebrew: 0x05A5, + mhook: 0x0271, + mhzsquare: 0x3392, + middledotkatakanahalfwidth: 0xFF65, + middot: 0x00B7, + mieumacirclekorean: 0x3272, + mieumaparenkorean: 0x3212, + mieumcirclekorean: 0x3264, + mieumkorean: 0x3141, + mieumpansioskorean: 0x3170, + mieumparenkorean: 0x3204, + mieumpieupkorean: 0x316E, + mieumsioskorean: 0x316F, + mihiragana: 0x307F, + mikatakana: 0x30DF, + mikatakanahalfwidth: 0xFF90, + minus: 0x2212, + minusbelowcmb: 0x0320, + minuscircle: 0x2296, + minusmod: 0x02D7, + minusplus: 0x2213, + minute: 0x2032, + miribaarusquare: 0x334A, + mirisquare: 0x3349, + mlonglegturned: 0x0270, + mlsquare: 0x3396, + mmcubedsquare: 0x33A3, + mmonospace: 0xFF4D, + mmsquaredsquare: 0x339F, + mohiragana: 0x3082, + mohmsquare: 0x33C1, + mokatakana: 0x30E2, + mokatakanahalfwidth: 0xFF93, + molsquare: 0x33D6, + momathai: 0x0E21, + moverssquare: 0x33A7, + moverssquaredsquare: 0x33A8, + mparen: 0x24A8, + mpasquare: 0x33AB, + mssquare: 0x33B3, + msuperior: 0xF6EF, + mturned: 0x026F, + mu: 0x00B5, + mu1: 0x00B5, + muasquare: 0x3382, + muchgreater: 0x226B, + muchless: 0x226A, + mufsquare: 0x338C, + mugreek: 0x03BC, + mugsquare: 0x338D, + muhiragana: 0x3080, + mukatakana: 0x30E0, + mukatakanahalfwidth: 0xFF91, + mulsquare: 0x3395, + multiply: 0x00D7, + mumsquare: 0x339B, + munahhebrew: 0x05A3, + munahlefthebrew: 0x05A3, + musicalnote: 0x266A, + musicalnotedbl: 0x266B, + musicflatsign: 0x266D, + musicsharpsign: 0x266F, + mussquare: 0x33B2, + muvsquare: 0x33B6, + muwsquare: 0x33BC, + mvmegasquare: 0x33B9, + mvsquare: 0x33B7, + mwmegasquare: 0x33BF, + mwsquare: 0x33BD, + n: 0x006E, + nabengali: 0x09A8, + nabla: 0x2207, + nacute: 0x0144, + nadeva: 0x0928, + nagujarati: 0x0AA8, + nagurmukhi: 0x0A28, + nahiragana: 0x306A, + nakatakana: 0x30CA, + nakatakanahalfwidth: 0xFF85, + napostrophe: 0x0149, + nasquare: 0x3381, + nbopomofo: 0x310B, + nbspace: 0x00A0, + ncaron: 0x0148, + ncedilla: 0x0146, + ncircle: 0x24DD, + ncircumflexbelow: 0x1E4B, + ncommaaccent: 0x0146, + ndotaccent: 0x1E45, + ndotbelow: 0x1E47, + nehiragana: 0x306D, + nekatakana: 0x30CD, + nekatakanahalfwidth: 0xFF88, + newsheqelsign: 0x20AA, + nfsquare: 0x338B, + ngabengali: 0x0999, + ngadeva: 0x0919, + ngagujarati: 0x0A99, + ngagurmukhi: 0x0A19, + ngonguthai: 0x0E07, + nhiragana: 0x3093, + nhookleft: 0x0272, + nhookretroflex: 0x0273, + nieunacirclekorean: 0x326F, + nieunaparenkorean: 0x320F, + nieuncieuckorean: 0x3135, + nieuncirclekorean: 0x3261, + nieunhieuhkorean: 0x3136, + nieunkorean: 0x3134, + nieunpansioskorean: 0x3168, + nieunparenkorean: 0x3201, + nieunsioskorean: 0x3167, + nieuntikeutkorean: 0x3166, + nihiragana: 0x306B, + nikatakana: 0x30CB, + nikatakanahalfwidth: 0xFF86, + nikhahitleftthai: 0xF899, + nikhahitthai: 0x0E4D, + nine: 0x0039, + ninearabic: 0x0669, + ninebengali: 0x09EF, + ninecircle: 0x2468, + ninecircleinversesansserif: 0x2792, + ninedeva: 0x096F, + ninegujarati: 0x0AEF, + ninegurmukhi: 0x0A6F, + ninehackarabic: 0x0669, + ninehangzhou: 0x3029, + nineideographicparen: 0x3228, + nineinferior: 0x2089, + ninemonospace: 0xFF19, + nineoldstyle: 0xF739, + nineparen: 0x247C, + nineperiod: 0x2490, + ninepersian: 0x06F9, + nineroman: 0x2178, + ninesuperior: 0x2079, + nineteencircle: 0x2472, + nineteenparen: 0x2486, + nineteenperiod: 0x249A, + ninethai: 0x0E59, + nj: 0x01CC, + njecyrillic: 0x045A, + nkatakana: 0x30F3, + nkatakanahalfwidth: 0xFF9D, + nlegrightlong: 0x019E, + nlinebelow: 0x1E49, + nmonospace: 0xFF4E, + nmsquare: 0x339A, + nnabengali: 0x09A3, + nnadeva: 0x0923, + nnagujarati: 0x0AA3, + nnagurmukhi: 0x0A23, + nnnadeva: 0x0929, + nohiragana: 0x306E, + nokatakana: 0x30CE, + nokatakanahalfwidth: 0xFF89, + nonbreakingspace: 0x00A0, + nonenthai: 0x0E13, + nonuthai: 0x0E19, + noonarabic: 0x0646, + noonfinalarabic: 0xFEE6, + noonghunnaarabic: 0x06BA, + noonghunnafinalarabic: 0xFB9F, + nooninitialarabic: 0xFEE7, + noonjeeminitialarabic: 0xFCD2, + noonjeemisolatedarabic: 0xFC4B, + noonmedialarabic: 0xFEE8, + noonmeeminitialarabic: 0xFCD5, + noonmeemisolatedarabic: 0xFC4E, + noonnoonfinalarabic: 0xFC8D, + notcontains: 0x220C, + notelement: 0x2209, + notelementof: 0x2209, + notequal: 0x2260, + notgreater: 0x226F, + notgreaternorequal: 0x2271, + notgreaternorless: 0x2279, + notidentical: 0x2262, + notless: 0x226E, + notlessnorequal: 0x2270, + notparallel: 0x2226, + notprecedes: 0x2280, + notsubset: 0x2284, + notsucceeds: 0x2281, + notsuperset: 0x2285, + nowarmenian: 0x0576, + nparen: 0x24A9, + nssquare: 0x33B1, + nsuperior: 0x207F, + ntilde: 0x00F1, + nu: 0x03BD, + nuhiragana: 0x306C, + nukatakana: 0x30CC, + nukatakanahalfwidth: 0xFF87, + nuktabengali: 0x09BC, + nuktadeva: 0x093C, + nuktagujarati: 0x0ABC, + nuktagurmukhi: 0x0A3C, + numbersign: 0x0023, + numbersignmonospace: 0xFF03, + numbersignsmall: 0xFE5F, + numeralsigngreek: 0x0374, + numeralsignlowergreek: 0x0375, + numero: 0x2116, + nun: 0x05E0, + nundagesh: 0xFB40, + nundageshhebrew: 0xFB40, + nunhebrew: 0x05E0, + nvsquare: 0x33B5, + nwsquare: 0x33BB, + nyabengali: 0x099E, + nyadeva: 0x091E, + nyagujarati: 0x0A9E, + nyagurmukhi: 0x0A1E, + o: 0x006F, + oacute: 0x00F3, + oangthai: 0x0E2D, + obarred: 0x0275, + obarredcyrillic: 0x04E9, + obarreddieresiscyrillic: 0x04EB, + obengali: 0x0993, + obopomofo: 0x311B, + obreve: 0x014F, + ocandradeva: 0x0911, + ocandragujarati: 0x0A91, + ocandravowelsigndeva: 0x0949, + ocandravowelsigngujarati: 0x0AC9, + ocaron: 0x01D2, + ocircle: 0x24DE, + ocircumflex: 0x00F4, + ocircumflexacute: 0x1ED1, + ocircumflexdotbelow: 0x1ED9, + ocircumflexgrave: 0x1ED3, + ocircumflexhookabove: 0x1ED5, + ocircumflextilde: 0x1ED7, + ocyrillic: 0x043E, + odblacute: 0x0151, + odblgrave: 0x020D, + odeva: 0x0913, + odieresis: 0x00F6, + odieresiscyrillic: 0x04E7, + odotbelow: 0x1ECD, + oe: 0x0153, + oekorean: 0x315A, + ogonek: 0x02DB, + ogonekcmb: 0x0328, + ograve: 0x00F2, + ogujarati: 0x0A93, + oharmenian: 0x0585, + ohiragana: 0x304A, + ohookabove: 0x1ECF, + ohorn: 0x01A1, + ohornacute: 0x1EDB, + ohorndotbelow: 0x1EE3, + ohorngrave: 0x1EDD, + ohornhookabove: 0x1EDF, + ohorntilde: 0x1EE1, + ohungarumlaut: 0x0151, + oi: 0x01A3, + oinvertedbreve: 0x020F, + okatakana: 0x30AA, + okatakanahalfwidth: 0xFF75, + okorean: 0x3157, + olehebrew: 0x05AB, + omacron: 0x014D, + omacronacute: 0x1E53, + omacrongrave: 0x1E51, + omdeva: 0x0950, + omega: 0x03C9, + omega1: 0x03D6, + omegacyrillic: 0x0461, + omegalatinclosed: 0x0277, + omegaroundcyrillic: 0x047B, + omegatitlocyrillic: 0x047D, + omegatonos: 0x03CE, + omgujarati: 0x0AD0, + omicron: 0x03BF, + omicrontonos: 0x03CC, + omonospace: 0xFF4F, + one: 0x0031, + onearabic: 0x0661, + onebengali: 0x09E7, + onecircle: 0x2460, + onecircleinversesansserif: 0x278A, + onedeva: 0x0967, + onedotenleader: 0x2024, + oneeighth: 0x215B, + onefitted: 0xF6DC, + onegujarati: 0x0AE7, + onegurmukhi: 0x0A67, + onehackarabic: 0x0661, + onehalf: 0x00BD, + onehangzhou: 0x3021, + oneideographicparen: 0x3220, + oneinferior: 0x2081, + onemonospace: 0xFF11, + onenumeratorbengali: 0x09F4, + oneoldstyle: 0xF731, + oneparen: 0x2474, + oneperiod: 0x2488, + onepersian: 0x06F1, + onequarter: 0x00BC, + oneroman: 0x2170, + onesuperior: 0x00B9, + onethai: 0x0E51, + onethird: 0x2153, + oogonek: 0x01EB, + oogonekmacron: 0x01ED, + oogurmukhi: 0x0A13, + oomatragurmukhi: 0x0A4B, + oopen: 0x0254, + oparen: 0x24AA, + openbullet: 0x25E6, + option: 0x2325, + ordfeminine: 0x00AA, + ordmasculine: 0x00BA, + orthogonal: 0x221F, + oshortdeva: 0x0912, + oshortvowelsigndeva: 0x094A, + oslash: 0x00F8, + oslashacute: 0x01FF, + osmallhiragana: 0x3049, + osmallkatakana: 0x30A9, + osmallkatakanahalfwidth: 0xFF6B, + ostrokeacute: 0x01FF, + osuperior: 0xF6F0, + otcyrillic: 0x047F, + otilde: 0x00F5, + otildeacute: 0x1E4D, + otildedieresis: 0x1E4F, + oubopomofo: 0x3121, + overline: 0x203E, + overlinecenterline: 0xFE4A, + overlinecmb: 0x0305, + overlinedashed: 0xFE49, + overlinedblwavy: 0xFE4C, + overlinewavy: 0xFE4B, + overscore: 0x00AF, + ovowelsignbengali: 0x09CB, + ovowelsigndeva: 0x094B, + ovowelsigngujarati: 0x0ACB, + p: 0x0070, + paampssquare: 0x3380, + paasentosquare: 0x332B, + pabengali: 0x09AA, + pacute: 0x1E55, + padeva: 0x092A, + pagedown: 0x21DF, + pageup: 0x21DE, + pagujarati: 0x0AAA, + pagurmukhi: 0x0A2A, + pahiragana: 0x3071, + paiyannoithai: 0x0E2F, + pakatakana: 0x30D1, + palatalizationcyrilliccmb: 0x0484, + palochkacyrillic: 0x04C0, + pansioskorean: 0x317F, + paragraph: 0x00B6, + parallel: 0x2225, + parenleft: 0x0028, + parenleftaltonearabic: 0xFD3E, + parenleftbt: 0xF8ED, + parenleftex: 0xF8EC, + parenleftinferior: 0x208D, + parenleftmonospace: 0xFF08, + parenleftsmall: 0xFE59, + parenleftsuperior: 0x207D, + parenlefttp: 0xF8EB, + parenleftvertical: 0xFE35, + parenright: 0x0029, + parenrightaltonearabic: 0xFD3F, + parenrightbt: 0xF8F8, + parenrightex: 0xF8F7, + parenrightinferior: 0x208E, + parenrightmonospace: 0xFF09, + parenrightsmall: 0xFE5A, + parenrightsuperior: 0x207E, + parenrighttp: 0xF8F6, + parenrightvertical: 0xFE36, + partialdiff: 0x2202, + paseqhebrew: 0x05C0, + pashtahebrew: 0x0599, + pasquare: 0x33A9, + patah: 0x05B7, + patah11: 0x05B7, + patah1d: 0x05B7, + patah2a: 0x05B7, + patahhebrew: 0x05B7, + patahnarrowhebrew: 0x05B7, + patahquarterhebrew: 0x05B7, + patahwidehebrew: 0x05B7, + pazerhebrew: 0x05A1, + pbopomofo: 0x3106, + pcircle: 0x24DF, + pdotaccent: 0x1E57, + pe: 0x05E4, + pecyrillic: 0x043F, + pedagesh: 0xFB44, + pedageshhebrew: 0xFB44, + peezisquare: 0x333B, + pefinaldageshhebrew: 0xFB43, + peharabic: 0x067E, + peharmenian: 0x057A, + pehebrew: 0x05E4, + pehfinalarabic: 0xFB57, + pehinitialarabic: 0xFB58, + pehiragana: 0x307A, + pehmedialarabic: 0xFB59, + pekatakana: 0x30DA, + pemiddlehookcyrillic: 0x04A7, + perafehebrew: 0xFB4E, + percent: 0x0025, + percentarabic: 0x066A, + percentmonospace: 0xFF05, + percentsmall: 0xFE6A, + period: 0x002E, + periodarmenian: 0x0589, + periodcentered: 0x00B7, + periodhalfwidth: 0xFF61, + periodinferior: 0xF6E7, + periodmonospace: 0xFF0E, + periodsmall: 0xFE52, + periodsuperior: 0xF6E8, + perispomenigreekcmb: 0x0342, + perpendicular: 0x22A5, + perthousand: 0x2030, + peseta: 0x20A7, + pfsquare: 0x338A, + phabengali: 0x09AB, + phadeva: 0x092B, + phagujarati: 0x0AAB, + phagurmukhi: 0x0A2B, + phi: 0x03C6, + phi1: 0x03D5, + phieuphacirclekorean: 0x327A, + phieuphaparenkorean: 0x321A, + phieuphcirclekorean: 0x326C, + phieuphkorean: 0x314D, + phieuphparenkorean: 0x320C, + philatin: 0x0278, + phinthuthai: 0x0E3A, + phisymbolgreek: 0x03D5, + phook: 0x01A5, + phophanthai: 0x0E1E, + phophungthai: 0x0E1C, + phosamphaothai: 0x0E20, + pi: 0x03C0, + pieupacirclekorean: 0x3273, + pieupaparenkorean: 0x3213, + pieupcieuckorean: 0x3176, + pieupcirclekorean: 0x3265, + pieupkiyeokkorean: 0x3172, + pieupkorean: 0x3142, + pieupparenkorean: 0x3205, + pieupsioskiyeokkorean: 0x3174, + pieupsioskorean: 0x3144, + pieupsiostikeutkorean: 0x3175, + pieupthieuthkorean: 0x3177, + pieuptikeutkorean: 0x3173, + pihiragana: 0x3074, + pikatakana: 0x30D4, + pisymbolgreek: 0x03D6, + piwrarmenian: 0x0583, + plus: 0x002B, + plusbelowcmb: 0x031F, + pluscircle: 0x2295, + plusminus: 0x00B1, + plusmod: 0x02D6, + plusmonospace: 0xFF0B, + plussmall: 0xFE62, + plussuperior: 0x207A, + pmonospace: 0xFF50, + pmsquare: 0x33D8, + pohiragana: 0x307D, + pointingindexdownwhite: 0x261F, + pointingindexleftwhite: 0x261C, + pointingindexrightwhite: 0x261E, + pointingindexupwhite: 0x261D, + pokatakana: 0x30DD, + poplathai: 0x0E1B, + postalmark: 0x3012, + postalmarkface: 0x3020, + pparen: 0x24AB, + precedes: 0x227A, + prescription: 0x211E, + primemod: 0x02B9, + primereversed: 0x2035, + product: 0x220F, + projective: 0x2305, + prolongedkana: 0x30FC, + propellor: 0x2318, + propersubset: 0x2282, + propersuperset: 0x2283, + proportion: 0x2237, + proportional: 0x221D, + psi: 0x03C8, + psicyrillic: 0x0471, + psilipneumatacyrilliccmb: 0x0486, + pssquare: 0x33B0, + puhiragana: 0x3077, + pukatakana: 0x30D7, + pvsquare: 0x33B4, + pwsquare: 0x33BA, + q: 0x0071, + qadeva: 0x0958, + qadmahebrew: 0x05A8, + qafarabic: 0x0642, + qaffinalarabic: 0xFED6, + qafinitialarabic: 0xFED7, + qafmedialarabic: 0xFED8, + qamats: 0x05B8, + qamats10: 0x05B8, + qamats1a: 0x05B8, + qamats1c: 0x05B8, + qamats27: 0x05B8, + qamats29: 0x05B8, + qamats33: 0x05B8, + qamatsde: 0x05B8, + qamatshebrew: 0x05B8, + qamatsnarrowhebrew: 0x05B8, + qamatsqatanhebrew: 0x05B8, + qamatsqatannarrowhebrew: 0x05B8, + qamatsqatanquarterhebrew: 0x05B8, + qamatsqatanwidehebrew: 0x05B8, + qamatsquarterhebrew: 0x05B8, + qamatswidehebrew: 0x05B8, + qarneyparahebrew: 0x059F, + qbopomofo: 0x3111, + qcircle: 0x24E0, + qhook: 0x02A0, + qmonospace: 0xFF51, + qof: 0x05E7, + qofdagesh: 0xFB47, + qofdageshhebrew: 0xFB47, + qofhebrew: 0x05E7, + qparen: 0x24AC, + quarternote: 0x2669, + qubuts: 0x05BB, + qubuts18: 0x05BB, + qubuts25: 0x05BB, + qubuts31: 0x05BB, + qubutshebrew: 0x05BB, + qubutsnarrowhebrew: 0x05BB, + qubutsquarterhebrew: 0x05BB, + qubutswidehebrew: 0x05BB, + question: 0x003F, + questionarabic: 0x061F, + questionarmenian: 0x055E, + questiondown: 0x00BF, + questiondownsmall: 0xF7BF, + questiongreek: 0x037E, + questionmonospace: 0xFF1F, + questionsmall: 0xF73F, + quotedbl: 0x0022, + quotedblbase: 0x201E, + quotedblleft: 0x201C, + quotedblmonospace: 0xFF02, + quotedblprime: 0x301E, + quotedblprimereversed: 0x301D, + quotedblright: 0x201D, + quoteleft: 0x2018, + quoteleftreversed: 0x201B, + quotereversed: 0x201B, + quoteright: 0x2019, + quoterightn: 0x0149, + quotesinglbase: 0x201A, + quotesingle: 0x0027, + quotesinglemonospace: 0xFF07, + r: 0x0072, + raarmenian: 0x057C, + rabengali: 0x09B0, + racute: 0x0155, + radeva: 0x0930, + radical: 0x221A, + radicalex: 0xF8E5, + radoverssquare: 0x33AE, + radoverssquaredsquare: 0x33AF, + radsquare: 0x33AD, + rafe: 0x05BF, + rafehebrew: 0x05BF, + ragujarati: 0x0AB0, + ragurmukhi: 0x0A30, + rahiragana: 0x3089, + rakatakana: 0x30E9, + rakatakanahalfwidth: 0xFF97, + ralowerdiagonalbengali: 0x09F1, + ramiddlediagonalbengali: 0x09F0, + ramshorn: 0x0264, + ratio: 0x2236, + rbopomofo: 0x3116, + rcaron: 0x0159, + rcedilla: 0x0157, + rcircle: 0x24E1, + rcommaaccent: 0x0157, + rdblgrave: 0x0211, + rdotaccent: 0x1E59, + rdotbelow: 0x1E5B, + rdotbelowmacron: 0x1E5D, + referencemark: 0x203B, + reflexsubset: 0x2286, + reflexsuperset: 0x2287, + registered: 0x00AE, + registersans: 0xF8E8, + registerserif: 0xF6DA, + reharabic: 0x0631, + reharmenian: 0x0580, + rehfinalarabic: 0xFEAE, + rehiragana: 0x308C, + rekatakana: 0x30EC, + rekatakanahalfwidth: 0xFF9A, + resh: 0x05E8, + reshdageshhebrew: 0xFB48, + reshhebrew: 0x05E8, + reversedtilde: 0x223D, + reviahebrew: 0x0597, + reviamugrashhebrew: 0x0597, + revlogicalnot: 0x2310, + rfishhook: 0x027E, + rfishhookreversed: 0x027F, + rhabengali: 0x09DD, + rhadeva: 0x095D, + rho: 0x03C1, + rhook: 0x027D, + rhookturned: 0x027B, + rhookturnedsuperior: 0x02B5, + rhosymbolgreek: 0x03F1, + rhotichookmod: 0x02DE, + rieulacirclekorean: 0x3271, + rieulaparenkorean: 0x3211, + rieulcirclekorean: 0x3263, + rieulhieuhkorean: 0x3140, + rieulkiyeokkorean: 0x313A, + rieulkiyeoksioskorean: 0x3169, + rieulkorean: 0x3139, + rieulmieumkorean: 0x313B, + rieulpansioskorean: 0x316C, + rieulparenkorean: 0x3203, + rieulphieuphkorean: 0x313F, + rieulpieupkorean: 0x313C, + rieulpieupsioskorean: 0x316B, + rieulsioskorean: 0x313D, + rieulthieuthkorean: 0x313E, + rieultikeutkorean: 0x316A, + rieulyeorinhieuhkorean: 0x316D, + rightangle: 0x221F, + righttackbelowcmb: 0x0319, + righttriangle: 0x22BF, + rihiragana: 0x308A, + rikatakana: 0x30EA, + rikatakanahalfwidth: 0xFF98, + ring: 0x02DA, + ringbelowcmb: 0x0325, + ringcmb: 0x030A, + ringhalfleft: 0x02BF, + ringhalfleftarmenian: 0x0559, + ringhalfleftbelowcmb: 0x031C, + ringhalfleftcentered: 0x02D3, + ringhalfright: 0x02BE, + ringhalfrightbelowcmb: 0x0339, + ringhalfrightcentered: 0x02D2, + rinvertedbreve: 0x0213, + rittorusquare: 0x3351, + rlinebelow: 0x1E5F, + rlongleg: 0x027C, + rlonglegturned: 0x027A, + rmonospace: 0xFF52, + rohiragana: 0x308D, + rokatakana: 0x30ED, + rokatakanahalfwidth: 0xFF9B, + roruathai: 0x0E23, + rparen: 0x24AD, + rrabengali: 0x09DC, + rradeva: 0x0931, + rragurmukhi: 0x0A5C, + rreharabic: 0x0691, + rrehfinalarabic: 0xFB8D, + rrvocalicbengali: 0x09E0, + rrvocalicdeva: 0x0960, + rrvocalicgujarati: 0x0AE0, + rrvocalicvowelsignbengali: 0x09C4, + rrvocalicvowelsigndeva: 0x0944, + rrvocalicvowelsigngujarati: 0x0AC4, + rsuperior: 0xF6F1, + rtblock: 0x2590, + rturned: 0x0279, + rturnedsuperior: 0x02B4, + ruhiragana: 0x308B, + rukatakana: 0x30EB, + rukatakanahalfwidth: 0xFF99, + rupeemarkbengali: 0x09F2, + rupeesignbengali: 0x09F3, + rupiah: 0xF6DD, + ruthai: 0x0E24, + rvocalicbengali: 0x098B, + rvocalicdeva: 0x090B, + rvocalicgujarati: 0x0A8B, + rvocalicvowelsignbengali: 0x09C3, + rvocalicvowelsigndeva: 0x0943, + rvocalicvowelsigngujarati: 0x0AC3, + s: 0x0073, + sabengali: 0x09B8, + sacute: 0x015B, + sacutedotaccent: 0x1E65, + sadarabic: 0x0635, + sadeva: 0x0938, + sadfinalarabic: 0xFEBA, + sadinitialarabic: 0xFEBB, + sadmedialarabic: 0xFEBC, + sagujarati: 0x0AB8, + sagurmukhi: 0x0A38, + sahiragana: 0x3055, + sakatakana: 0x30B5, + sakatakanahalfwidth: 0xFF7B, + sallallahoualayhewasallamarabic: 0xFDFA, + samekh: 0x05E1, + samekhdagesh: 0xFB41, + samekhdageshhebrew: 0xFB41, + samekhhebrew: 0x05E1, + saraaathai: 0x0E32, + saraaethai: 0x0E41, + saraaimaimalaithai: 0x0E44, + saraaimaimuanthai: 0x0E43, + saraamthai: 0x0E33, + saraathai: 0x0E30, + saraethai: 0x0E40, + saraiileftthai: 0xF886, + saraiithai: 0x0E35, + saraileftthai: 0xF885, + saraithai: 0x0E34, + saraothai: 0x0E42, + saraueeleftthai: 0xF888, + saraueethai: 0x0E37, + saraueleftthai: 0xF887, + sarauethai: 0x0E36, + sarauthai: 0x0E38, + sarauuthai: 0x0E39, + sbopomofo: 0x3119, + scaron: 0x0161, + scarondotaccent: 0x1E67, + scedilla: 0x015F, + schwa: 0x0259, + schwacyrillic: 0x04D9, + schwadieresiscyrillic: 0x04DB, + schwahook: 0x025A, + scircle: 0x24E2, + scircumflex: 0x015D, + scommaaccent: 0x0219, + sdotaccent: 0x1E61, + sdotbelow: 0x1E63, + sdotbelowdotaccent: 0x1E69, + seagullbelowcmb: 0x033C, + second: 0x2033, + secondtonechinese: 0x02CA, + section: 0x00A7, + seenarabic: 0x0633, + seenfinalarabic: 0xFEB2, + seeninitialarabic: 0xFEB3, + seenmedialarabic: 0xFEB4, + segol: 0x05B6, + segol13: 0x05B6, + segol1f: 0x05B6, + segol2c: 0x05B6, + segolhebrew: 0x05B6, + segolnarrowhebrew: 0x05B6, + segolquarterhebrew: 0x05B6, + segoltahebrew: 0x0592, + segolwidehebrew: 0x05B6, + seharmenian: 0x057D, + sehiragana: 0x305B, + sekatakana: 0x30BB, + sekatakanahalfwidth: 0xFF7E, + semicolon: 0x003B, + semicolonarabic: 0x061B, + semicolonmonospace: 0xFF1B, + semicolonsmall: 0xFE54, + semivoicedmarkkana: 0x309C, + semivoicedmarkkanahalfwidth: 0xFF9F, + sentisquare: 0x3322, + sentosquare: 0x3323, + seven: 0x0037, + sevenarabic: 0x0667, + sevenbengali: 0x09ED, + sevencircle: 0x2466, + sevencircleinversesansserif: 0x2790, + sevendeva: 0x096D, + seveneighths: 0x215E, + sevengujarati: 0x0AED, + sevengurmukhi: 0x0A6D, + sevenhackarabic: 0x0667, + sevenhangzhou: 0x3027, + sevenideographicparen: 0x3226, + seveninferior: 0x2087, + sevenmonospace: 0xFF17, + sevenoldstyle: 0xF737, + sevenparen: 0x247A, + sevenperiod: 0x248E, + sevenpersian: 0x06F7, + sevenroman: 0x2176, + sevensuperior: 0x2077, + seventeencircle: 0x2470, + seventeenparen: 0x2484, + seventeenperiod: 0x2498, + seventhai: 0x0E57, + sfthyphen: 0x00AD, + shaarmenian: 0x0577, + shabengali: 0x09B6, + shacyrillic: 0x0448, + shaddaarabic: 0x0651, + shaddadammaarabic: 0xFC61, + shaddadammatanarabic: 0xFC5E, + shaddafathaarabic: 0xFC60, + shaddakasraarabic: 0xFC62, + shaddakasratanarabic: 0xFC5F, + shade: 0x2592, + shadedark: 0x2593, + shadelight: 0x2591, + shademedium: 0x2592, + shadeva: 0x0936, + shagujarati: 0x0AB6, + shagurmukhi: 0x0A36, + shalshelethebrew: 0x0593, + shbopomofo: 0x3115, + shchacyrillic: 0x0449, + sheenarabic: 0x0634, + sheenfinalarabic: 0xFEB6, + sheeninitialarabic: 0xFEB7, + sheenmedialarabic: 0xFEB8, + sheicoptic: 0x03E3, + sheqel: 0x20AA, + sheqelhebrew: 0x20AA, + sheva: 0x05B0, + sheva115: 0x05B0, + sheva15: 0x05B0, + sheva22: 0x05B0, + sheva2e: 0x05B0, + shevahebrew: 0x05B0, + shevanarrowhebrew: 0x05B0, + shevaquarterhebrew: 0x05B0, + shevawidehebrew: 0x05B0, + shhacyrillic: 0x04BB, + shimacoptic: 0x03ED, + shin: 0x05E9, + shindagesh: 0xFB49, + shindageshhebrew: 0xFB49, + shindageshshindot: 0xFB2C, + shindageshshindothebrew: 0xFB2C, + shindageshsindot: 0xFB2D, + shindageshsindothebrew: 0xFB2D, + shindothebrew: 0x05C1, + shinhebrew: 0x05E9, + shinshindot: 0xFB2A, + shinshindothebrew: 0xFB2A, + shinsindot: 0xFB2B, + shinsindothebrew: 0xFB2B, + shook: 0x0282, + sigma: 0x03C3, + sigma1: 0x03C2, + sigmafinal: 0x03C2, + sigmalunatesymbolgreek: 0x03F2, + sihiragana: 0x3057, + sikatakana: 0x30B7, + sikatakanahalfwidth: 0xFF7C, + siluqhebrew: 0x05BD, + siluqlefthebrew: 0x05BD, + similar: 0x223C, + sindothebrew: 0x05C2, + siosacirclekorean: 0x3274, + siosaparenkorean: 0x3214, + sioscieuckorean: 0x317E, + sioscirclekorean: 0x3266, + sioskiyeokkorean: 0x317A, + sioskorean: 0x3145, + siosnieunkorean: 0x317B, + siosparenkorean: 0x3206, + siospieupkorean: 0x317D, + siostikeutkorean: 0x317C, + six: 0x0036, + sixarabic: 0x0666, + sixbengali: 0x09EC, + sixcircle: 0x2465, + sixcircleinversesansserif: 0x278F, + sixdeva: 0x096C, + sixgujarati: 0x0AEC, + sixgurmukhi: 0x0A6C, + sixhackarabic: 0x0666, + sixhangzhou: 0x3026, + sixideographicparen: 0x3225, + sixinferior: 0x2086, + sixmonospace: 0xFF16, + sixoldstyle: 0xF736, + sixparen: 0x2479, + sixperiod: 0x248D, + sixpersian: 0x06F6, + sixroman: 0x2175, + sixsuperior: 0x2076, + sixteencircle: 0x246F, + sixteencurrencydenominatorbengali: 0x09F9, + sixteenparen: 0x2483, + sixteenperiod: 0x2497, + sixthai: 0x0E56, + slash: 0x002F, + slashmonospace: 0xFF0F, + slong: 0x017F, + slongdotaccent: 0x1E9B, + smileface: 0x263A, + smonospace: 0xFF53, + sofpasuqhebrew: 0x05C3, + softhyphen: 0x00AD, + softsigncyrillic: 0x044C, + sohiragana: 0x305D, + sokatakana: 0x30BD, + sokatakanahalfwidth: 0xFF7F, + soliduslongoverlaycmb: 0x0338, + solidusshortoverlaycmb: 0x0337, + sorusithai: 0x0E29, + sosalathai: 0x0E28, + sosothai: 0x0E0B, + sosuathai: 0x0E2A, + space: 0x0020, + spacehackarabic: 0x0020, + spade: 0x2660, + spadesuitblack: 0x2660, + spadesuitwhite: 0x2664, + sparen: 0x24AE, + squarebelowcmb: 0x033B, + squarecc: 0x33C4, + squarecm: 0x339D, + squarediagonalcrosshatchfill: 0x25A9, + squarehorizontalfill: 0x25A4, + squarekg: 0x338F, + squarekm: 0x339E, + squarekmcapital: 0x33CE, + squareln: 0x33D1, + squarelog: 0x33D2, + squaremg: 0x338E, + squaremil: 0x33D5, + squaremm: 0x339C, + squaremsquared: 0x33A1, + squareorthogonalcrosshatchfill: 0x25A6, + squareupperlefttolowerrightfill: 0x25A7, + squareupperrighttolowerleftfill: 0x25A8, + squareverticalfill: 0x25A5, + squarewhitewithsmallblack: 0x25A3, + srsquare: 0x33DB, + ssabengali: 0x09B7, + ssadeva: 0x0937, + ssagujarati: 0x0AB7, + ssangcieuckorean: 0x3149, + ssanghieuhkorean: 0x3185, + ssangieungkorean: 0x3180, + ssangkiyeokkorean: 0x3132, + ssangnieunkorean: 0x3165, + ssangpieupkorean: 0x3143, + ssangsioskorean: 0x3146, + ssangtikeutkorean: 0x3138, + ssuperior: 0xF6F2, + sterling: 0x00A3, + sterlingmonospace: 0xFFE1, + strokelongoverlaycmb: 0x0336, + strokeshortoverlaycmb: 0x0335, + subset: 0x2282, + subsetnotequal: 0x228A, + subsetorequal: 0x2286, + succeeds: 0x227B, + suchthat: 0x220B, + suhiragana: 0x3059, + sukatakana: 0x30B9, + sukatakanahalfwidth: 0xFF7D, + sukunarabic: 0x0652, + summation: 0x2211, + sun: 0x263C, + superset: 0x2283, + supersetnotequal: 0x228B, + supersetorequal: 0x2287, + svsquare: 0x33DC, + syouwaerasquare: 0x337C, + t: 0x0074, + tabengali: 0x09A4, + tackdown: 0x22A4, + tackleft: 0x22A3, + tadeva: 0x0924, + tagujarati: 0x0AA4, + tagurmukhi: 0x0A24, + taharabic: 0x0637, + tahfinalarabic: 0xFEC2, + tahinitialarabic: 0xFEC3, + tahiragana: 0x305F, + tahmedialarabic: 0xFEC4, + taisyouerasquare: 0x337D, + takatakana: 0x30BF, + takatakanahalfwidth: 0xFF80, + tatweelarabic: 0x0640, + tau: 0x03C4, + tav: 0x05EA, + tavdages: 0xFB4A, + tavdagesh: 0xFB4A, + tavdageshhebrew: 0xFB4A, + tavhebrew: 0x05EA, + tbar: 0x0167, + tbopomofo: 0x310A, + tcaron: 0x0165, + tccurl: 0x02A8, + tcedilla: 0x0163, + tcheharabic: 0x0686, + tchehfinalarabic: 0xFB7B, + tchehinitialarabic: 0xFB7C, + tchehmedialarabic: 0xFB7D, + tcircle: 0x24E3, + tcircumflexbelow: 0x1E71, + tcommaaccent: 0x0163, + tdieresis: 0x1E97, + tdotaccent: 0x1E6B, + tdotbelow: 0x1E6D, + tecyrillic: 0x0442, + tedescendercyrillic: 0x04AD, + teharabic: 0x062A, + tehfinalarabic: 0xFE96, + tehhahinitialarabic: 0xFCA2, + tehhahisolatedarabic: 0xFC0C, + tehinitialarabic: 0xFE97, + tehiragana: 0x3066, + tehjeeminitialarabic: 0xFCA1, + tehjeemisolatedarabic: 0xFC0B, + tehmarbutaarabic: 0x0629, + tehmarbutafinalarabic: 0xFE94, + tehmedialarabic: 0xFE98, + tehmeeminitialarabic: 0xFCA4, + tehmeemisolatedarabic: 0xFC0E, + tehnoonfinalarabic: 0xFC73, + tekatakana: 0x30C6, + tekatakanahalfwidth: 0xFF83, + telephone: 0x2121, + telephoneblack: 0x260E, + telishagedolahebrew: 0x05A0, + telishaqetanahebrew: 0x05A9, + tencircle: 0x2469, + tenideographicparen: 0x3229, + tenparen: 0x247D, + tenperiod: 0x2491, + tenroman: 0x2179, + tesh: 0x02A7, + tet: 0x05D8, + tetdagesh: 0xFB38, + tetdageshhebrew: 0xFB38, + tethebrew: 0x05D8, + tetsecyrillic: 0x04B5, + tevirhebrew: 0x059B, + tevirlefthebrew: 0x059B, + thabengali: 0x09A5, + thadeva: 0x0925, + thagujarati: 0x0AA5, + thagurmukhi: 0x0A25, + thalarabic: 0x0630, + thalfinalarabic: 0xFEAC, + thanthakhatlowleftthai: 0xF898, + thanthakhatlowrightthai: 0xF897, + thanthakhatthai: 0x0E4C, + thanthakhatupperleftthai: 0xF896, + theharabic: 0x062B, + thehfinalarabic: 0xFE9A, + thehinitialarabic: 0xFE9B, + thehmedialarabic: 0xFE9C, + thereexists: 0x2203, + therefore: 0x2234, + theta: 0x03B8, + theta1: 0x03D1, + thetasymbolgreek: 0x03D1, + thieuthacirclekorean: 0x3279, + thieuthaparenkorean: 0x3219, + thieuthcirclekorean: 0x326B, + thieuthkorean: 0x314C, + thieuthparenkorean: 0x320B, + thirteencircle: 0x246C, + thirteenparen: 0x2480, + thirteenperiod: 0x2494, + thonangmonthothai: 0x0E11, + thook: 0x01AD, + thophuthaothai: 0x0E12, + thorn: 0x00FE, + thothahanthai: 0x0E17, + thothanthai: 0x0E10, + thothongthai: 0x0E18, + thothungthai: 0x0E16, + thousandcyrillic: 0x0482, + thousandsseparatorarabic: 0x066C, + thousandsseparatorpersian: 0x066C, + three: 0x0033, + threearabic: 0x0663, + threebengali: 0x09E9, + threecircle: 0x2462, + threecircleinversesansserif: 0x278C, + threedeva: 0x0969, + threeeighths: 0x215C, + threegujarati: 0x0AE9, + threegurmukhi: 0x0A69, + threehackarabic: 0x0663, + threehangzhou: 0x3023, + threeideographicparen: 0x3222, + threeinferior: 0x2083, + threemonospace: 0xFF13, + threenumeratorbengali: 0x09F6, + threeoldstyle: 0xF733, + threeparen: 0x2476, + threeperiod: 0x248A, + threepersian: 0x06F3, + threequarters: 0x00BE, + threequartersemdash: 0xF6DE, + threeroman: 0x2172, + threesuperior: 0x00B3, + threethai: 0x0E53, + thzsquare: 0x3394, + tihiragana: 0x3061, + tikatakana: 0x30C1, + tikatakanahalfwidth: 0xFF81, + tikeutacirclekorean: 0x3270, + tikeutaparenkorean: 0x3210, + tikeutcirclekorean: 0x3262, + tikeutkorean: 0x3137, + tikeutparenkorean: 0x3202, + tilde: 0x02DC, + tildebelowcmb: 0x0330, + tildecmb: 0x0303, + tildecomb: 0x0303, + tildedoublecmb: 0x0360, + tildeoperator: 0x223C, + tildeoverlaycmb: 0x0334, + tildeverticalcmb: 0x033E, + timescircle: 0x2297, + tipehahebrew: 0x0596, + tipehalefthebrew: 0x0596, + tippigurmukhi: 0x0A70, + titlocyrilliccmb: 0x0483, + tiwnarmenian: 0x057F, + tlinebelow: 0x1E6F, + tmonospace: 0xFF54, + toarmenian: 0x0569, + tohiragana: 0x3068, + tokatakana: 0x30C8, + tokatakanahalfwidth: 0xFF84, + tonebarextrahighmod: 0x02E5, + tonebarextralowmod: 0x02E9, + tonebarhighmod: 0x02E6, + tonebarlowmod: 0x02E8, + tonebarmidmod: 0x02E7, + tonefive: 0x01BD, + tonesix: 0x0185, + tonetwo: 0x01A8, + tonos: 0x0384, + tonsquare: 0x3327, + topatakthai: 0x0E0F, + tortoiseshellbracketleft: 0x3014, + tortoiseshellbracketleftsmall: 0xFE5D, + tortoiseshellbracketleftvertical: 0xFE39, + tortoiseshellbracketright: 0x3015, + tortoiseshellbracketrightsmall: 0xFE5E, + tortoiseshellbracketrightvertical: 0xFE3A, + totaothai: 0x0E15, + tpalatalhook: 0x01AB, + tparen: 0x24AF, + trademark: 0x2122, + trademarksans: 0xF8EA, + trademarkserif: 0xF6DB, + tretroflexhook: 0x0288, + triagdn: 0x25BC, + triaglf: 0x25C4, + triagrt: 0x25BA, + triagup: 0x25B2, + ts: 0x02A6, + tsadi: 0x05E6, + tsadidagesh: 0xFB46, + tsadidageshhebrew: 0xFB46, + tsadihebrew: 0x05E6, + tsecyrillic: 0x0446, + tsere: 0x05B5, + tsere12: 0x05B5, + tsere1e: 0x05B5, + tsere2b: 0x05B5, + tserehebrew: 0x05B5, + tserenarrowhebrew: 0x05B5, + tserequarterhebrew: 0x05B5, + tserewidehebrew: 0x05B5, + tshecyrillic: 0x045B, + tsuperior: 0xF6F3, + ttabengali: 0x099F, + ttadeva: 0x091F, + ttagujarati: 0x0A9F, + ttagurmukhi: 0x0A1F, + tteharabic: 0x0679, + ttehfinalarabic: 0xFB67, + ttehinitialarabic: 0xFB68, + ttehmedialarabic: 0xFB69, + tthabengali: 0x09A0, + tthadeva: 0x0920, + tthagujarati: 0x0AA0, + tthagurmukhi: 0x0A20, + tturned: 0x0287, + tuhiragana: 0x3064, + tukatakana: 0x30C4, + tukatakanahalfwidth: 0xFF82, + tusmallhiragana: 0x3063, + tusmallkatakana: 0x30C3, + tusmallkatakanahalfwidth: 0xFF6F, + twelvecircle: 0x246B, + twelveparen: 0x247F, + twelveperiod: 0x2493, + twelveroman: 0x217B, + twentycircle: 0x2473, + twentyhangzhou: 0x5344, + twentyparen: 0x2487, + twentyperiod: 0x249B, + two: 0x0032, + twoarabic: 0x0662, + twobengali: 0x09E8, + twocircle: 0x2461, + twocircleinversesansserif: 0x278B, + twodeva: 0x0968, + twodotenleader: 0x2025, + twodotleader: 0x2025, + twodotleadervertical: 0xFE30, + twogujarati: 0x0AE8, + twogurmukhi: 0x0A68, + twohackarabic: 0x0662, + twohangzhou: 0x3022, + twoideographicparen: 0x3221, + twoinferior: 0x2082, + twomonospace: 0xFF12, + twonumeratorbengali: 0x09F5, + twooldstyle: 0xF732, + twoparen: 0x2475, + twoperiod: 0x2489, + twopersian: 0x06F2, + tworoman: 0x2171, + twostroke: 0x01BB, + twosuperior: 0x00B2, + twothai: 0x0E52, + twothirds: 0x2154, + u: 0x0075, + uacute: 0x00FA, + ubar: 0x0289, + ubengali: 0x0989, + ubopomofo: 0x3128, + ubreve: 0x016D, + ucaron: 0x01D4, + ucircle: 0x24E4, + ucircumflex: 0x00FB, + ucircumflexbelow: 0x1E77, + ucyrillic: 0x0443, + udattadeva: 0x0951, + udblacute: 0x0171, + udblgrave: 0x0215, + udeva: 0x0909, + udieresis: 0x00FC, + udieresisacute: 0x01D8, + udieresisbelow: 0x1E73, + udieresiscaron: 0x01DA, + udieresiscyrillic: 0x04F1, + udieresisgrave: 0x01DC, + udieresismacron: 0x01D6, + udotbelow: 0x1EE5, + ugrave: 0x00F9, + ugujarati: 0x0A89, + ugurmukhi: 0x0A09, + uhiragana: 0x3046, + uhookabove: 0x1EE7, + uhorn: 0x01B0, + uhornacute: 0x1EE9, + uhorndotbelow: 0x1EF1, + uhorngrave: 0x1EEB, + uhornhookabove: 0x1EED, + uhorntilde: 0x1EEF, + uhungarumlaut: 0x0171, + uhungarumlautcyrillic: 0x04F3, + uinvertedbreve: 0x0217, + ukatakana: 0x30A6, + ukatakanahalfwidth: 0xFF73, + ukcyrillic: 0x0479, + ukorean: 0x315C, + umacron: 0x016B, + umacroncyrillic: 0x04EF, + umacrondieresis: 0x1E7B, + umatragurmukhi: 0x0A41, + umonospace: 0xFF55, + underscore: 0x005F, + underscoredbl: 0x2017, + underscoremonospace: 0xFF3F, + underscorevertical: 0xFE33, + underscorewavy: 0xFE4F, + union: 0x222A, + universal: 0x2200, + uogonek: 0x0173, + uparen: 0x24B0, + upblock: 0x2580, + upperdothebrew: 0x05C4, + upsilon: 0x03C5, + upsilondieresis: 0x03CB, + upsilondieresistonos: 0x03B0, + upsilonlatin: 0x028A, + upsilontonos: 0x03CD, + uptackbelowcmb: 0x031D, + uptackmod: 0x02D4, + uragurmukhi: 0x0A73, + uring: 0x016F, + ushortcyrillic: 0x045E, + usmallhiragana: 0x3045, + usmallkatakana: 0x30A5, + usmallkatakanahalfwidth: 0xFF69, + ustraightcyrillic: 0x04AF, + ustraightstrokecyrillic: 0x04B1, + utilde: 0x0169, + utildeacute: 0x1E79, + utildebelow: 0x1E75, + uubengali: 0x098A, + uudeva: 0x090A, + uugujarati: 0x0A8A, + uugurmukhi: 0x0A0A, + uumatragurmukhi: 0x0A42, + uuvowelsignbengali: 0x09C2, + uuvowelsigndeva: 0x0942, + uuvowelsigngujarati: 0x0AC2, + uvowelsignbengali: 0x09C1, + uvowelsigndeva: 0x0941, + uvowelsigngujarati: 0x0AC1, + v: 0x0076, + vadeva: 0x0935, + vagujarati: 0x0AB5, + vagurmukhi: 0x0A35, + vakatakana: 0x30F7, + vav: 0x05D5, + vavdagesh: 0xFB35, + vavdagesh65: 0xFB35, + vavdageshhebrew: 0xFB35, + vavhebrew: 0x05D5, + vavholam: 0xFB4B, + vavholamhebrew: 0xFB4B, + vavvavhebrew: 0x05F0, + vavyodhebrew: 0x05F1, + vcircle: 0x24E5, + vdotbelow: 0x1E7F, + vecyrillic: 0x0432, + veharabic: 0x06A4, + vehfinalarabic: 0xFB6B, + vehinitialarabic: 0xFB6C, + vehmedialarabic: 0xFB6D, + vekatakana: 0x30F9, + venus: 0x2640, + verticalbar: 0x007C, + verticallineabovecmb: 0x030D, + verticallinebelowcmb: 0x0329, + verticallinelowmod: 0x02CC, + verticallinemod: 0x02C8, + vewarmenian: 0x057E, + vhook: 0x028B, + vikatakana: 0x30F8, + viramabengali: 0x09CD, + viramadeva: 0x094D, + viramagujarati: 0x0ACD, + visargabengali: 0x0983, + visargadeva: 0x0903, + visargagujarati: 0x0A83, + vmonospace: 0xFF56, + voarmenian: 0x0578, + voicediterationhiragana: 0x309E, + voicediterationkatakana: 0x30FE, + voicedmarkkana: 0x309B, + voicedmarkkanahalfwidth: 0xFF9E, + vokatakana: 0x30FA, + vparen: 0x24B1, + vtilde: 0x1E7D, + vturned: 0x028C, + vuhiragana: 0x3094, + vukatakana: 0x30F4, + w: 0x0077, + wacute: 0x1E83, + waekorean: 0x3159, + wahiragana: 0x308F, + wakatakana: 0x30EF, + wakatakanahalfwidth: 0xFF9C, + wakorean: 0x3158, + wasmallhiragana: 0x308E, + wasmallkatakana: 0x30EE, + wattosquare: 0x3357, + wavedash: 0x301C, + wavyunderscorevertical: 0xFE34, + wawarabic: 0x0648, + wawfinalarabic: 0xFEEE, + wawhamzaabovearabic: 0x0624, + wawhamzaabovefinalarabic: 0xFE86, + wbsquare: 0x33DD, + wcircle: 0x24E6, + wcircumflex: 0x0175, + wdieresis: 0x1E85, + wdotaccent: 0x1E87, + wdotbelow: 0x1E89, + wehiragana: 0x3091, + weierstrass: 0x2118, + wekatakana: 0x30F1, + wekorean: 0x315E, + weokorean: 0x315D, + wgrave: 0x1E81, + whitebullet: 0x25E6, + whitecircle: 0x25CB, + whitecircleinverse: 0x25D9, + whitecornerbracketleft: 0x300E, + whitecornerbracketleftvertical: 0xFE43, + whitecornerbracketright: 0x300F, + whitecornerbracketrightvertical: 0xFE44, + whitediamond: 0x25C7, + whitediamondcontainingblacksmalldiamond: 0x25C8, + whitedownpointingsmalltriangle: 0x25BF, + whitedownpointingtriangle: 0x25BD, + whiteleftpointingsmalltriangle: 0x25C3, + whiteleftpointingtriangle: 0x25C1, + whitelenticularbracketleft: 0x3016, + whitelenticularbracketright: 0x3017, + whiterightpointingsmalltriangle: 0x25B9, + whiterightpointingtriangle: 0x25B7, + whitesmallsquare: 0x25AB, + whitesmilingface: 0x263A, + whitesquare: 0x25A1, + whitestar: 0x2606, + whitetelephone: 0x260F, + whitetortoiseshellbracketleft: 0x3018, + whitetortoiseshellbracketright: 0x3019, + whiteuppointingsmalltriangle: 0x25B5, + whiteuppointingtriangle: 0x25B3, + wihiragana: 0x3090, + wikatakana: 0x30F0, + wikorean: 0x315F, + wmonospace: 0xFF57, + wohiragana: 0x3092, + wokatakana: 0x30F2, + wokatakanahalfwidth: 0xFF66, + won: 0x20A9, + wonmonospace: 0xFFE6, + wowaenthai: 0x0E27, + wparen: 0x24B2, + wring: 0x1E98, + wsuperior: 0x02B7, + wturned: 0x028D, + wynn: 0x01BF, + x: 0x0078, + xabovecmb: 0x033D, + xbopomofo: 0x3112, + xcircle: 0x24E7, + xdieresis: 0x1E8D, + xdotaccent: 0x1E8B, + xeharmenian: 0x056D, + xi: 0x03BE, + xmonospace: 0xFF58, + xparen: 0x24B3, + xsuperior: 0x02E3, + y: 0x0079, + yaadosquare: 0x334E, + yabengali: 0x09AF, + yacute: 0x00FD, + yadeva: 0x092F, + yaekorean: 0x3152, + yagujarati: 0x0AAF, + yagurmukhi: 0x0A2F, + yahiragana: 0x3084, + yakatakana: 0x30E4, + yakatakanahalfwidth: 0xFF94, + yakorean: 0x3151, + yamakkanthai: 0x0E4E, + yasmallhiragana: 0x3083, + yasmallkatakana: 0x30E3, + yasmallkatakanahalfwidth: 0xFF6C, + yatcyrillic: 0x0463, + ycircle: 0x24E8, + ycircumflex: 0x0177, + ydieresis: 0x00FF, + ydotaccent: 0x1E8F, + ydotbelow: 0x1EF5, + yeharabic: 0x064A, + yehbarreearabic: 0x06D2, + yehbarreefinalarabic: 0xFBAF, + yehfinalarabic: 0xFEF2, + yehhamzaabovearabic: 0x0626, + yehhamzaabovefinalarabic: 0xFE8A, + yehhamzaaboveinitialarabic: 0xFE8B, + yehhamzaabovemedialarabic: 0xFE8C, + yehinitialarabic: 0xFEF3, + yehmedialarabic: 0xFEF4, + yehmeeminitialarabic: 0xFCDD, + yehmeemisolatedarabic: 0xFC58, + yehnoonfinalarabic: 0xFC94, + yehthreedotsbelowarabic: 0x06D1, + yekorean: 0x3156, + yen: 0x00A5, + yenmonospace: 0xFFE5, + yeokorean: 0x3155, + yeorinhieuhkorean: 0x3186, + yerahbenyomohebrew: 0x05AA, + yerahbenyomolefthebrew: 0x05AA, + yericyrillic: 0x044B, + yerudieresiscyrillic: 0x04F9, + yesieungkorean: 0x3181, + yesieungpansioskorean: 0x3183, + yesieungsioskorean: 0x3182, + yetivhebrew: 0x059A, + ygrave: 0x1EF3, + yhook: 0x01B4, + yhookabove: 0x1EF7, + yiarmenian: 0x0575, + yicyrillic: 0x0457, + yikorean: 0x3162, + yinyang: 0x262F, + yiwnarmenian: 0x0582, + ymonospace: 0xFF59, + yod: 0x05D9, + yoddagesh: 0xFB39, + yoddageshhebrew: 0xFB39, + yodhebrew: 0x05D9, + yodyodhebrew: 0x05F2, + yodyodpatahhebrew: 0xFB1F, + yohiragana: 0x3088, + yoikorean: 0x3189, + yokatakana: 0x30E8, + yokatakanahalfwidth: 0xFF96, + yokorean: 0x315B, + yosmallhiragana: 0x3087, + yosmallkatakana: 0x30E7, + yosmallkatakanahalfwidth: 0xFF6E, + yotgreek: 0x03F3, + yoyaekorean: 0x3188, + yoyakorean: 0x3187, + yoyakthai: 0x0E22, + yoyingthai: 0x0E0D, + yparen: 0x24B4, + ypogegrammeni: 0x037A, + ypogegrammenigreekcmb: 0x0345, + yr: 0x01A6, + yring: 0x1E99, + ysuperior: 0x02B8, + ytilde: 0x1EF9, + yturned: 0x028E, + yuhiragana: 0x3086, + yuikorean: 0x318C, + yukatakana: 0x30E6, + yukatakanahalfwidth: 0xFF95, + yukorean: 0x3160, + yusbigcyrillic: 0x046B, + yusbigiotifiedcyrillic: 0x046D, + yuslittlecyrillic: 0x0467, + yuslittleiotifiedcyrillic: 0x0469, + yusmallhiragana: 0x3085, + yusmallkatakana: 0x30E5, + yusmallkatakanahalfwidth: 0xFF6D, + yuyekorean: 0x318B, + yuyeokorean: 0x318A, + yyabengali: 0x09DF, + yyadeva: 0x095F, + z: 0x007A, + zaarmenian: 0x0566, + zacute: 0x017A, + zadeva: 0x095B, + zagurmukhi: 0x0A5B, + zaharabic: 0x0638, + zahfinalarabic: 0xFEC6, + zahinitialarabic: 0xFEC7, + zahiragana: 0x3056, + zahmedialarabic: 0xFEC8, + zainarabic: 0x0632, + zainfinalarabic: 0xFEB0, + zakatakana: 0x30B6, + zaqefgadolhebrew: 0x0595, + zaqefqatanhebrew: 0x0594, + zarqahebrew: 0x0598, + zayin: 0x05D6, + zayindagesh: 0xFB36, + zayindageshhebrew: 0xFB36, + zayinhebrew: 0x05D6, + zbopomofo: 0x3117, + zcaron: 0x017E, + zcircle: 0x24E9, + zcircumflex: 0x1E91, + zcurl: 0x0291, + zdot: 0x017C, + zdotaccent: 0x017C, + zdotbelow: 0x1E93, + zecyrillic: 0x0437, + zedescendercyrillic: 0x0499, + zedieresiscyrillic: 0x04DF, + zehiragana: 0x305C, + zekatakana: 0x30BC, + zero: 0x0030, + zeroarabic: 0x0660, + zerobengali: 0x09E6, + zerodeva: 0x0966, + zerogujarati: 0x0AE6, + zerogurmukhi: 0x0A66, + zerohackarabic: 0x0660, + zeroinferior: 0x2080, + zeromonospace: 0xFF10, + zerooldstyle: 0xF730, + zeropersian: 0x06F0, + zerosuperior: 0x2070, + zerothai: 0x0E50, + zerowidthjoiner: 0xFEFF, + zerowidthnonjoiner: 0x200C, + zerowidthspace: 0x200B, + zeta: 0x03B6, + zhbopomofo: 0x3113, + zhearmenian: 0x056A, + zhebrevecyrillic: 0x04C2, + zhecyrillic: 0x0436, + zhedescendercyrillic: 0x0497, + zhedieresiscyrillic: 0x04DD, + zihiragana: 0x3058, + zikatakana: 0x30B8, + zinorhebrew: 0x05AE, + zlinebelow: 0x1E95, + zmonospace: 0xFF5A, + zohiragana: 0x305E, + zokatakana: 0x30BE, + zparen: 0x24B5, + zretroflexhook: 0x0290, + zstroke: 0x01B6, + zuhiragana: 0x305A, + zukatakana: 0x30BA, + '.notdef': 0x0000 +}; + +var DingbatsGlyphsUnicode = { + space: 0x0020, + a1: 0x2701, + a2: 0x2702, + a202: 0x2703, + a3: 0x2704, + a4: 0x260E, + a5: 0x2706, + a119: 0x2707, + a118: 0x2708, + a117: 0x2709, + a11: 0x261B, + a12: 0x261E, + a13: 0x270C, + a14: 0x270D, + a15: 0x270E, + a16: 0x270F, + a105: 0x2710, + a17: 0x2711, + a18: 0x2712, + a19: 0x2713, + a20: 0x2714, + a21: 0x2715, + a22: 0x2716, + a23: 0x2717, + a24: 0x2718, + a25: 0x2719, + a26: 0x271A, + a27: 0x271B, + a28: 0x271C, + a6: 0x271D, + a7: 0x271E, + a8: 0x271F, + a9: 0x2720, + a10: 0x2721, + a29: 0x2722, + a30: 0x2723, + a31: 0x2724, + a32: 0x2725, + a33: 0x2726, + a34: 0x2727, + a35: 0x2605, + a36: 0x2729, + a37: 0x272A, + a38: 0x272B, + a39: 0x272C, + a40: 0x272D, + a41: 0x272E, + a42: 0x272F, + a43: 0x2730, + a44: 0x2731, + a45: 0x2732, + a46: 0x2733, + a47: 0x2734, + a48: 0x2735, + a49: 0x2736, + a50: 0x2737, + a51: 0x2738, + a52: 0x2739, + a53: 0x273A, + a54: 0x273B, + a55: 0x273C, + a56: 0x273D, + a57: 0x273E, + a58: 0x273F, + a59: 0x2740, + a60: 0x2741, + a61: 0x2742, + a62: 0x2743, + a63: 0x2744, + a64: 0x2745, + a65: 0x2746, + a66: 0x2747, + a67: 0x2748, + a68: 0x2749, + a69: 0x274A, + a70: 0x274B, + a71: 0x25CF, + a72: 0x274D, + a73: 0x25A0, + a74: 0x274F, + a203: 0x2750, + a75: 0x2751, + a204: 0x2752, + a76: 0x25B2, + a77: 0x25BC, + a78: 0x25C6, + a79: 0x2756, + a81: 0x25D7, + a82: 0x2758, + a83: 0x2759, + a84: 0x275A, + a97: 0x275B, + a98: 0x275C, + a99: 0x275D, + a100: 0x275E, + a101: 0x2761, + a102: 0x2762, + a103: 0x2763, + a104: 0x2764, + a106: 0x2765, + a107: 0x2766, + a108: 0x2767, + a112: 0x2663, + a111: 0x2666, + a110: 0x2665, + a109: 0x2660, + a120: 0x2460, + a121: 0x2461, + a122: 0x2462, + a123: 0x2463, + a124: 0x2464, + a125: 0x2465, + a126: 0x2466, + a127: 0x2467, + a128: 0x2468, + a129: 0x2469, + a130: 0x2776, + a131: 0x2777, + a132: 0x2778, + a133: 0x2779, + a134: 0x277A, + a135: 0x277B, + a136: 0x277C, + a137: 0x277D, + a138: 0x277E, + a139: 0x277F, + a140: 0x2780, + a141: 0x2781, + a142: 0x2782, + a143: 0x2783, + a144: 0x2784, + a145: 0x2785, + a146: 0x2786, + a147: 0x2787, + a148: 0x2788, + a149: 0x2789, + a150: 0x278A, + a151: 0x278B, + a152: 0x278C, + a153: 0x278D, + a154: 0x278E, + a155: 0x278F, + a156: 0x2790, + a157: 0x2791, + a158: 0x2792, + a159: 0x2793, + a160: 0x2794, + a161: 0x2192, + a163: 0x2194, + a164: 0x2195, + a196: 0x2798, + a165: 0x2799, + a192: 0x279A, + a166: 0x279B, + a167: 0x279C, + a168: 0x279D, + a169: 0x279E, + a170: 0x279F, + a171: 0x27A0, + a172: 0x27A1, + a173: 0x27A2, + a162: 0x27A3, + a174: 0x27A4, + a175: 0x27A5, + a176: 0x27A6, + a177: 0x27A7, + a178: 0x27A8, + a179: 0x27A9, + a193: 0x27AA, + a180: 0x27AB, + a199: 0x27AC, + a181: 0x27AD, + a200: 0x27AE, + a182: 0x27AF, + a201: 0x27B1, + a183: 0x27B2, + a184: 0x27B3, + a197: 0x27B4, + a185: 0x27B5, + a194: 0x27B6, + a198: 0x27B7, + a186: 0x27B8, + a195: 0x27B9, + a187: 0x27BA, + a188: 0x27BB, + a189: 0x27BC, + a190: 0x27BD, + a191: 0x27BE, + a89: 0x2768, // 0xF8D7 + a90: 0x2769, // 0xF8D8 + a93: 0x276A, // 0xF8D9 + a94: 0x276B, // 0xF8DA + a91: 0x276C, // 0xF8DB + a92: 0x276D, // 0xF8DC + a205: 0x276E, // 0xF8DD + a85: 0x276F, // 0xF8DE + a206: 0x2770, // 0xF8DF + a86: 0x2771, // 0xF8E0 + a87: 0x2772, // 0xF8E1 + a88: 0x2773, // 0xF8E2 + a95: 0x2774, // 0xF8E3 + a96: 0x2775, // 0xF8E4 + '.notdef': 0x0000 +}; + +exports.GlyphsUnicode = GlyphsUnicode; +exports.DingbatsGlyphsUnicode = DingbatsGlyphsUnicode; +})); + + + +(function (root, factory) { + { + factory((root.pdfjsCoreJpg = {})); + } +}(this, function (exports) { + +/* +This code was forked from https://github.com/notmasteryet/jpgjs. The original +version was created by github user notmasteryet + +- The JPEG specification can be found in the ITU CCITT Recommendation T.81 + (www.w3.org/Graphics/JPEG/itu-t81.pdf) +- The JFIF specification can be found in the JPEG File Interchange Format + (www.w3.org/Graphics/JPEG/jfif3.pdf) +- The Adobe Application-Specific JPEG markers in the Supporting the DCT Filters + in PostScript Level 2, Technical Note #5116 + (partners.adobe.com/public/developer/en/ps/sdk/5116.DCT_Filter.pdf) +*/ + +var JpegImage = (function jpegImage() { + var dctZigZag = new Uint8Array([ + 0, + 1, 8, + 16, 9, 2, + 3, 10, 17, 24, + 32, 25, 18, 11, 4, + 5, 12, 19, 26, 33, 40, + 48, 41, 34, 27, 20, 13, 6, + 7, 14, 21, 28, 35, 42, 49, 56, + 57, 50, 43, 36, 29, 22, 15, + 23, 30, 37, 44, 51, 58, + 59, 52, 45, 38, 31, + 39, 46, 53, 60, + 61, 54, 47, + 55, 62, + 63 + ]); + + var dctCos1 = 4017; // cos(pi/16) + var dctSin1 = 799; // sin(pi/16) + var dctCos3 = 3406; // cos(3*pi/16) + var dctSin3 = 2276; // sin(3*pi/16) + var dctCos6 = 1567; // cos(6*pi/16) + var dctSin6 = 3784; // sin(6*pi/16) + var dctSqrt2 = 5793; // sqrt(2) + var dctSqrt1d2 = 2896; // sqrt(2) / 2 + + function constructor() { + } + + function buildHuffmanTable(codeLengths, values) { + var k = 0, code = [], i, j, length = 16; + while (length > 0 && !codeLengths[length - 1]) { + length--; + } + code.push({children: [], index: 0}); + var p = code[0], q; + for (i = 0; i < length; i++) { + for (j = 0; j < codeLengths[i]; j++) { + p = code.pop(); + p.children[p.index] = values[k]; + while (p.index > 0) { + p = code.pop(); + } + p.index++; + code.push(p); + while (code.length <= i) { + code.push(q = {children: [], index: 0}); + p.children[p.index] = q.children; + p = q; + } + k++; + } + if (i + 1 < length) { + // p here points to last code + code.push(q = {children: [], index: 0}); + p.children[p.index] = q.children; + p = q; + } + } + return code[0].children; + } + + function getBlockBufferOffset(component, row, col) { + return 64 * ((component.blocksPerLine + 1) * row + col); + } + + function decodeScan(data, offset, frame, components, resetInterval, + spectralStart, spectralEnd, successivePrev, successive) { + var mcusPerLine = frame.mcusPerLine; + var progressive = frame.progressive; + + var startOffset = offset, bitsData = 0, bitsCount = 0; + + function readBit() { + if (bitsCount > 0) { + bitsCount--; + return (bitsData >> bitsCount) & 1; + } + bitsData = data[offset++]; + if (bitsData === 0xFF) { + var nextByte = data[offset++]; + if (nextByte) { + throw 'unexpected marker: ' + + ((bitsData << 8) | nextByte).toString(16); + } + // unstuff 0 + } + bitsCount = 7; + return bitsData >>> 7; + } + + function decodeHuffman(tree) { + var node = tree; + while (true) { + node = node[readBit()]; + if (typeof node === 'number') { + return node; + } + if (typeof node !== 'object') { + throw 'invalid huffman sequence'; + } + } + } + + function receive(length) { + var n = 0; + while (length > 0) { + n = (n << 1) | readBit(); + length--; + } + return n; + } + + function receiveAndExtend(length) { + if (length === 1) { + return readBit() === 1 ? 1 : -1; + } + var n = receive(length); + if (n >= 1 << (length - 1)) { + return n; + } + return n + (-1 << length) + 1; + } + + function decodeBaseline(component, offset) { + var t = decodeHuffman(component.huffmanTableDC); + var diff = t === 0 ? 0 : receiveAndExtend(t); + component.blockData[offset] = (component.pred += diff); + var k = 1; + while (k < 64) { + var rs = decodeHuffman(component.huffmanTableAC); + var s = rs & 15, r = rs >> 4; + if (s === 0) { + if (r < 15) { + break; + } + k += 16; + continue; + } + k += r; + var z = dctZigZag[k]; + component.blockData[offset + z] = receiveAndExtend(s); + k++; + } + } + + function decodeDCFirst(component, offset) { + var t = decodeHuffman(component.huffmanTableDC); + var diff = t === 0 ? 0 : (receiveAndExtend(t) << successive); + component.blockData[offset] = (component.pred += diff); + } + + function decodeDCSuccessive(component, offset) { + component.blockData[offset] |= readBit() << successive; + } + + var eobrun = 0; + function decodeACFirst(component, offset) { + if (eobrun > 0) { + eobrun--; + return; + } + var k = spectralStart, e = spectralEnd; + while (k <= e) { + var rs = decodeHuffman(component.huffmanTableAC); + var s = rs & 15, r = rs >> 4; + if (s === 0) { + if (r < 15) { + eobrun = receive(r) + (1 << r) - 1; + break; + } + k += 16; + continue; + } + k += r; + var z = dctZigZag[k]; + component.blockData[offset + z] = + receiveAndExtend(s) * (1 << successive); + k++; + } + } + + var successiveACState = 0, successiveACNextValue; + function decodeACSuccessive(component, offset) { + var k = spectralStart; + var e = spectralEnd; + var r = 0; + var s; + var rs; + while (k <= e) { + var z = dctZigZag[k]; + switch (successiveACState) { + case 0: // initial state + rs = decodeHuffman(component.huffmanTableAC); + s = rs & 15; + r = rs >> 4; + if (s === 0) { + if (r < 15) { + eobrun = receive(r) + (1 << r); + successiveACState = 4; + } else { + r = 16; + successiveACState = 1; + } + } else { + if (s !== 1) { + throw 'invalid ACn encoding'; + } + successiveACNextValue = receiveAndExtend(s); + successiveACState = r ? 2 : 3; + } + continue; + case 1: // skipping r zero items + case 2: + if (component.blockData[offset + z]) { + component.blockData[offset + z] += (readBit() << successive); + } else { + r--; + if (r === 0) { + successiveACState = successiveACState === 2 ? 3 : 0; + } + } + break; + case 3: // set value for a zero item + if (component.blockData[offset + z]) { + component.blockData[offset + z] += (readBit() << successive); + } else { + component.blockData[offset + z] = + successiveACNextValue << successive; + successiveACState = 0; + } + break; + case 4: // eob + if (component.blockData[offset + z]) { + component.blockData[offset + z] += (readBit() << successive); + } + break; + } + k++; + } + if (successiveACState === 4) { + eobrun--; + if (eobrun === 0) { + successiveACState = 0; + } + } + } + + function decodeMcu(component, decode, mcu, row, col) { + var mcuRow = (mcu / mcusPerLine) | 0; + var mcuCol = mcu % mcusPerLine; + var blockRow = mcuRow * component.v + row; + var blockCol = mcuCol * component.h + col; + var offset = getBlockBufferOffset(component, blockRow, blockCol); + decode(component, offset); + } + + function decodeBlock(component, decode, mcu) { + var blockRow = (mcu / component.blocksPerLine) | 0; + var blockCol = mcu % component.blocksPerLine; + var offset = getBlockBufferOffset(component, blockRow, blockCol); + decode(component, offset); + } + + var componentsLength = components.length; + var component, i, j, k, n; + var decodeFn; + if (progressive) { + if (spectralStart === 0) { + decodeFn = successivePrev === 0 ? decodeDCFirst : decodeDCSuccessive; + } else { + decodeFn = successivePrev === 0 ? decodeACFirst : decodeACSuccessive; + } + } else { + decodeFn = decodeBaseline; + } + + var mcu = 0, marker; + var mcuExpected; + if (componentsLength === 1) { + mcuExpected = components[0].blocksPerLine * components[0].blocksPerColumn; + } else { + mcuExpected = mcusPerLine * frame.mcusPerColumn; + } + if (!resetInterval) { + resetInterval = mcuExpected; + } + + var h, v; + while (mcu < mcuExpected) { + // reset interval stuff + for (i = 0; i < componentsLength; i++) { + components[i].pred = 0; + } + eobrun = 0; + + if (componentsLength === 1) { + component = components[0]; + for (n = 0; n < resetInterval; n++) { + decodeBlock(component, decodeFn, mcu); + mcu++; + } + } else { + for (n = 0; n < resetInterval; n++) { + for (i = 0; i < componentsLength; i++) { + component = components[i]; + h = component.h; + v = component.v; + for (j = 0; j < v; j++) { + for (k = 0; k < h; k++) { + decodeMcu(component, decodeFn, mcu, j, k); + } + } + } + mcu++; + } + } + + // find marker + bitsCount = 0; + marker = (data[offset] << 8) | data[offset + 1]; + if (marker <= 0xFF00) { + throw 'marker was not found'; + } + + if (marker >= 0xFFD0 && marker <= 0xFFD7) { // RSTx + offset += 2; + } else { + break; + } + } + + return offset - startOffset; + } + + // A port of poppler's IDCT method which in turn is taken from: + // Christoph Loeffler, Adriaan Ligtenberg, George S. Moschytz, + // 'Practical Fast 1-D DCT Algorithms with 11 Multiplications', + // IEEE Intl. Conf. on Acoustics, Speech & Signal Processing, 1989, + // 988-991. + function quantizeAndInverse(component, blockBufferOffset, p) { + var qt = component.quantizationTable, blockData = component.blockData; + var v0, v1, v2, v3, v4, v5, v6, v7; + var p0, p1, p2, p3, p4, p5, p6, p7; + var t; + + // inverse DCT on rows + for (var row = 0; row < 64; row += 8) { + // gather block data + p0 = blockData[blockBufferOffset + row]; + p1 = blockData[blockBufferOffset + row + 1]; + p2 = blockData[blockBufferOffset + row + 2]; + p3 = blockData[blockBufferOffset + row + 3]; + p4 = blockData[blockBufferOffset + row + 4]; + p5 = blockData[blockBufferOffset + row + 5]; + p6 = blockData[blockBufferOffset + row + 6]; + p7 = blockData[blockBufferOffset + row + 7]; + + // dequant p0 + p0 *= qt[row]; + + // check for all-zero AC coefficients + if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) { + t = (dctSqrt2 * p0 + 512) >> 10; + p[row] = t; + p[row + 1] = t; + p[row + 2] = t; + p[row + 3] = t; + p[row + 4] = t; + p[row + 5] = t; + p[row + 6] = t; + p[row + 7] = t; + continue; + } + // dequant p1 ... p7 + p1 *= qt[row + 1]; + p2 *= qt[row + 2]; + p3 *= qt[row + 3]; + p4 *= qt[row + 4]; + p5 *= qt[row + 5]; + p6 *= qt[row + 6]; + p7 *= qt[row + 7]; + + // stage 4 + v0 = (dctSqrt2 * p0 + 128) >> 8; + v1 = (dctSqrt2 * p4 + 128) >> 8; + v2 = p2; + v3 = p6; + v4 = (dctSqrt1d2 * (p1 - p7) + 128) >> 8; + v7 = (dctSqrt1d2 * (p1 + p7) + 128) >> 8; + v5 = p3 << 4; + v6 = p5 << 4; + + // stage 3 + v0 = (v0 + v1 + 1) >> 1; + v1 = v0 - v1; + t = (v2 * dctSin6 + v3 * dctCos6 + 128) >> 8; + v2 = (v2 * dctCos6 - v3 * dctSin6 + 128) >> 8; + v3 = t; + v4 = (v4 + v6 + 1) >> 1; + v6 = v4 - v6; + v7 = (v7 + v5 + 1) >> 1; + v5 = v7 - v5; + + // stage 2 + v0 = (v0 + v3 + 1) >> 1; + v3 = v0 - v3; + v1 = (v1 + v2 + 1) >> 1; + v2 = v1 - v2; + t = (v4 * dctSin3 + v7 * dctCos3 + 2048) >> 12; + v4 = (v4 * dctCos3 - v7 * dctSin3 + 2048) >> 12; + v7 = t; + t = (v5 * dctSin1 + v6 * dctCos1 + 2048) >> 12; + v5 = (v5 * dctCos1 - v6 * dctSin1 + 2048) >> 12; + v6 = t; + + // stage 1 + p[row] = v0 + v7; + p[row + 7] = v0 - v7; + p[row + 1] = v1 + v6; + p[row + 6] = v1 - v6; + p[row + 2] = v2 + v5; + p[row + 5] = v2 - v5; + p[row + 3] = v3 + v4; + p[row + 4] = v3 - v4; + } + + // inverse DCT on columns + for (var col = 0; col < 8; ++col) { + p0 = p[col]; + p1 = p[col + 8]; + p2 = p[col + 16]; + p3 = p[col + 24]; + p4 = p[col + 32]; + p5 = p[col + 40]; + p6 = p[col + 48]; + p7 = p[col + 56]; + + // check for all-zero AC coefficients + if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) { + t = (dctSqrt2 * p0 + 8192) >> 14; + // convert to 8 bit + t = (t < -2040) ? 0 : (t >= 2024) ? 255 : (t + 2056) >> 4; + blockData[blockBufferOffset + col] = t; + blockData[blockBufferOffset + col + 8] = t; + blockData[blockBufferOffset + col + 16] = t; + blockData[blockBufferOffset + col + 24] = t; + blockData[blockBufferOffset + col + 32] = t; + blockData[blockBufferOffset + col + 40] = t; + blockData[blockBufferOffset + col + 48] = t; + blockData[blockBufferOffset + col + 56] = t; + continue; + } + + // stage 4 + v0 = (dctSqrt2 * p0 + 2048) >> 12; + v1 = (dctSqrt2 * p4 + 2048) >> 12; + v2 = p2; + v3 = p6; + v4 = (dctSqrt1d2 * (p1 - p7) + 2048) >> 12; + v7 = (dctSqrt1d2 * (p1 + p7) + 2048) >> 12; + v5 = p3; + v6 = p5; + + // stage 3 + // Shift v0 by 128.5 << 5 here, so we don't need to shift p0...p7 when + // converting to UInt8 range later. + v0 = ((v0 + v1 + 1) >> 1) + 4112; + v1 = v0 - v1; + t = (v2 * dctSin6 + v3 * dctCos6 + 2048) >> 12; + v2 = (v2 * dctCos6 - v3 * dctSin6 + 2048) >> 12; + v3 = t; + v4 = (v4 + v6 + 1) >> 1; + v6 = v4 - v6; + v7 = (v7 + v5 + 1) >> 1; + v5 = v7 - v5; + + // stage 2 + v0 = (v0 + v3 + 1) >> 1; + v3 = v0 - v3; + v1 = (v1 + v2 + 1) >> 1; + v2 = v1 - v2; + t = (v4 * dctSin3 + v7 * dctCos3 + 2048) >> 12; + v4 = (v4 * dctCos3 - v7 * dctSin3 + 2048) >> 12; + v7 = t; + t = (v5 * dctSin1 + v6 * dctCos1 + 2048) >> 12; + v5 = (v5 * dctCos1 - v6 * dctSin1 + 2048) >> 12; + v6 = t; + + // stage 1 + p0 = v0 + v7; + p7 = v0 - v7; + p1 = v1 + v6; + p6 = v1 - v6; + p2 = v2 + v5; + p5 = v2 - v5; + p3 = v3 + v4; + p4 = v3 - v4; + + // convert to 8-bit integers + p0 = (p0 < 16) ? 0 : (p0 >= 4080) ? 255 : p0 >> 4; + p1 = (p1 < 16) ? 0 : (p1 >= 4080) ? 255 : p1 >> 4; + p2 = (p2 < 16) ? 0 : (p2 >= 4080) ? 255 : p2 >> 4; + p3 = (p3 < 16) ? 0 : (p3 >= 4080) ? 255 : p3 >> 4; + p4 = (p4 < 16) ? 0 : (p4 >= 4080) ? 255 : p4 >> 4; + p5 = (p5 < 16) ? 0 : (p5 >= 4080) ? 255 : p5 >> 4; + p6 = (p6 < 16) ? 0 : (p6 >= 4080) ? 255 : p6 >> 4; + p7 = (p7 < 16) ? 0 : (p7 >= 4080) ? 255 : p7 >> 4; + + // store block data + blockData[blockBufferOffset + col] = p0; + blockData[blockBufferOffset + col + 8] = p1; + blockData[blockBufferOffset + col + 16] = p2; + blockData[blockBufferOffset + col + 24] = p3; + blockData[blockBufferOffset + col + 32] = p4; + blockData[blockBufferOffset + col + 40] = p5; + blockData[blockBufferOffset + col + 48] = p6; + blockData[blockBufferOffset + col + 56] = p7; + } + } + + function buildComponentData(frame, component) { + var blocksPerLine = component.blocksPerLine; + var blocksPerColumn = component.blocksPerColumn; + var computationBuffer = new Int16Array(64); + + for (var blockRow = 0; blockRow < blocksPerColumn; blockRow++) { + for (var blockCol = 0; blockCol < blocksPerLine; blockCol++) { + var offset = getBlockBufferOffset(component, blockRow, blockCol); + quantizeAndInverse(component, offset, computationBuffer); + } + } + return component.blockData; + } + + function clamp0to255(a) { + return a <= 0 ? 0 : a >= 255 ? 255 : a; + } + + constructor.prototype = { + parse: function parse(data) { + + function readUint16() { + var value = (data[offset] << 8) | data[offset + 1]; + offset += 2; + return value; + } + + function readDataBlock() { + var length = readUint16(); + var array = data.subarray(offset, offset + length - 2); + offset += array.length; + return array; + } + + function prepareComponents(frame) { + var mcusPerLine = Math.ceil(frame.samplesPerLine / 8 / frame.maxH); + var mcusPerColumn = Math.ceil(frame.scanLines / 8 / frame.maxV); + for (var i = 0; i < frame.components.length; i++) { + component = frame.components[i]; + var blocksPerLine = Math.ceil(Math.ceil(frame.samplesPerLine / 8) * + component.h / frame.maxH); + var blocksPerColumn = Math.ceil(Math.ceil(frame.scanLines / 8) * + component.v / frame.maxV); + var blocksPerLineForMcu = mcusPerLine * component.h; + var blocksPerColumnForMcu = mcusPerColumn * component.v; + + var blocksBufferSize = 64 * blocksPerColumnForMcu * + (blocksPerLineForMcu + 1); + component.blockData = new Int16Array(blocksBufferSize); + component.blocksPerLine = blocksPerLine; + component.blocksPerColumn = blocksPerColumn; + } + frame.mcusPerLine = mcusPerLine; + frame.mcusPerColumn = mcusPerColumn; + } + + var offset = 0; + var jfif = null; + var adobe = null; + var frame, resetInterval; + var quantizationTables = []; + var huffmanTablesAC = [], huffmanTablesDC = []; + var fileMarker = readUint16(); + if (fileMarker !== 0xFFD8) { // SOI (Start of Image) + throw 'SOI not found'; + } + + fileMarker = readUint16(); + while (fileMarker !== 0xFFD9) { // EOI (End of image) + var i, j, l; + switch(fileMarker) { + case 0xFFE0: // APP0 (Application Specific) + case 0xFFE1: // APP1 + case 0xFFE2: // APP2 + case 0xFFE3: // APP3 + case 0xFFE4: // APP4 + case 0xFFE5: // APP5 + case 0xFFE6: // APP6 + case 0xFFE7: // APP7 + case 0xFFE8: // APP8 + case 0xFFE9: // APP9 + case 0xFFEA: // APP10 + case 0xFFEB: // APP11 + case 0xFFEC: // APP12 + case 0xFFED: // APP13 + case 0xFFEE: // APP14 + case 0xFFEF: // APP15 + case 0xFFFE: // COM (Comment) + var appData = readDataBlock(); + + if (fileMarker === 0xFFE0) { + if (appData[0] === 0x4A && appData[1] === 0x46 && + appData[2] === 0x49 && appData[3] === 0x46 && + appData[4] === 0) { // 'JFIF\x00' + jfif = { + version: { major: appData[5], minor: appData[6] }, + densityUnits: appData[7], + xDensity: (appData[8] << 8) | appData[9], + yDensity: (appData[10] << 8) | appData[11], + thumbWidth: appData[12], + thumbHeight: appData[13], + thumbData: appData.subarray(14, 14 + + 3 * appData[12] * appData[13]) + }; + } + } + // TODO APP1 - Exif + if (fileMarker === 0xFFEE) { + if (appData[0] === 0x41 && appData[1] === 0x64 && + appData[2] === 0x6F && appData[3] === 0x62 && + appData[4] === 0x65) { // 'Adobe' + adobe = { + version: (appData[5] << 8) | appData[6], + flags0: (appData[7] << 8) | appData[8], + flags1: (appData[9] << 8) | appData[10], + transformCode: appData[11] + }; + } + } + break; + + case 0xFFDB: // DQT (Define Quantization Tables) + var quantizationTablesLength = readUint16(); + var quantizationTablesEnd = quantizationTablesLength + offset - 2; + var z; + while (offset < quantizationTablesEnd) { + var quantizationTableSpec = data[offset++]; + var tableData = new Uint16Array(64); + if ((quantizationTableSpec >> 4) === 0) { // 8 bit values + for (j = 0; j < 64; j++) { + z = dctZigZag[j]; + tableData[z] = data[offset++]; + } + } else if ((quantizationTableSpec >> 4) === 1) { //16 bit + for (j = 0; j < 64; j++) { + z = dctZigZag[j]; + tableData[z] = readUint16(); + } + } else { + throw 'DQT: invalid table spec'; + } + quantizationTables[quantizationTableSpec & 15] = tableData; + } + break; + + case 0xFFC0: // SOF0 (Start of Frame, Baseline DCT) + case 0xFFC1: // SOF1 (Start of Frame, Extended DCT) + case 0xFFC2: // SOF2 (Start of Frame, Progressive DCT) + if (frame) { + throw 'Only single frame JPEGs supported'; + } + readUint16(); // skip data length + frame = {}; + frame.extended = (fileMarker === 0xFFC1); + frame.progressive = (fileMarker === 0xFFC2); + frame.precision = data[offset++]; + frame.scanLines = readUint16(); + frame.samplesPerLine = readUint16(); + frame.components = []; + frame.componentIds = {}; + var componentsCount = data[offset++], componentId; + var maxH = 0, maxV = 0; + for (i = 0; i < componentsCount; i++) { + componentId = data[offset]; + var h = data[offset + 1] >> 4; + var v = data[offset + 1] & 15; + if (maxH < h) { + maxH = h; + } + if (maxV < v) { + maxV = v; + } + var qId = data[offset + 2]; + l = frame.components.push({ + h: h, + v: v, + quantizationTable: quantizationTables[qId] + }); + frame.componentIds[componentId] = l - 1; + offset += 3; + } + frame.maxH = maxH; + frame.maxV = maxV; + prepareComponents(frame); + break; + + case 0xFFC4: // DHT (Define Huffman Tables) + var huffmanLength = readUint16(); + for (i = 2; i < huffmanLength;) { + var huffmanTableSpec = data[offset++]; + var codeLengths = new Uint8Array(16); + var codeLengthSum = 0; + for (j = 0; j < 16; j++, offset++) { + codeLengthSum += (codeLengths[j] = data[offset]); + } + var huffmanValues = new Uint8Array(codeLengthSum); + for (j = 0; j < codeLengthSum; j++, offset++) { + huffmanValues[j] = data[offset]; + } + i += 17 + codeLengthSum; + + ((huffmanTableSpec >> 4) === 0 ? + huffmanTablesDC : huffmanTablesAC)[huffmanTableSpec & 15] = + buildHuffmanTable(codeLengths, huffmanValues); + } + break; + + case 0xFFDD: // DRI (Define Restart Interval) + readUint16(); // skip data length + resetInterval = readUint16(); + break; + + case 0xFFDA: // SOS (Start of Scan) + var scanLength = readUint16(); + var selectorsCount = data[offset++]; + var components = [], component; + for (i = 0; i < selectorsCount; i++) { + var componentIndex = frame.componentIds[data[offset++]]; + component = frame.components[componentIndex]; + var tableSpec = data[offset++]; + component.huffmanTableDC = huffmanTablesDC[tableSpec >> 4]; + component.huffmanTableAC = huffmanTablesAC[tableSpec & 15]; + components.push(component); + } + var spectralStart = data[offset++]; + var spectralEnd = data[offset++]; + var successiveApproximation = data[offset++]; + var processed = decodeScan(data, offset, + frame, components, resetInterval, + spectralStart, spectralEnd, + successiveApproximation >> 4, successiveApproximation & 15); + offset += processed; + break; + + case 0xFFFF: // Fill bytes + if (data[offset] !== 0xFF) { // Avoid skipping a valid marker. + offset--; + } + break; + + default: + if (data[offset - 3] === 0xFF && + data[offset - 2] >= 0xC0 && data[offset - 2] <= 0xFE) { + // could be incorrect encoding -- last 0xFF byte of the previous + // block was eaten by the encoder + offset -= 3; + break; + } + throw 'unknown JPEG marker ' + fileMarker.toString(16); + } + fileMarker = readUint16(); + } + + this.width = frame.samplesPerLine; + this.height = frame.scanLines; + this.jfif = jfif; + this.adobe = adobe; + this.components = []; + for (i = 0; i < frame.components.length; i++) { + component = frame.components[i]; + this.components.push({ + output: buildComponentData(frame, component), + scaleX: component.h / frame.maxH, + scaleY: component.v / frame.maxV, + blocksPerLine: component.blocksPerLine, + blocksPerColumn: component.blocksPerColumn + }); + } + this.numComponents = this.components.length; + }, + + _getLinearizedBlockData: function getLinearizedBlockData(width, height) { + var scaleX = this.width / width, scaleY = this.height / height; + + var component, componentScaleX, componentScaleY, blocksPerScanline; + var x, y, i, j, k; + var index; + var offset = 0; + var output; + var numComponents = this.components.length; + var dataLength = width * height * numComponents; + var data = new Uint8Array(dataLength); + var xScaleBlockOffset = new Uint32Array(width); + var mask3LSB = 0xfffffff8; // used to clear the 3 LSBs + + for (i = 0; i < numComponents; i++) { + component = this.components[i]; + componentScaleX = component.scaleX * scaleX; + componentScaleY = component.scaleY * scaleY; + offset = i; + output = component.output; + blocksPerScanline = (component.blocksPerLine + 1) << 3; + // precalculate the xScaleBlockOffset + for (x = 0; x < width; x++) { + j = 0 | (x * componentScaleX); + xScaleBlockOffset[x] = ((j & mask3LSB) << 3) | (j & 7); + } + // linearize the blocks of the component + for (y = 0; y < height; y++) { + j = 0 | (y * componentScaleY); + index = blocksPerScanline * (j & mask3LSB) | ((j & 7) << 3); + for (x = 0; x < width; x++) { + data[offset] = output[index + xScaleBlockOffset[x]]; + offset += numComponents; + } + } + } + + // decodeTransform contains pairs of multiplier (-256..256) and additive + var transform = this.decodeTransform; + if (transform) { + for (i = 0; i < dataLength;) { + for (j = 0, k = 0; j < numComponents; j++, i++, k += 2) { + data[i] = ((data[i] * transform[k]) >> 8) + transform[k + 1]; + } + } + } + return data; + }, + + _isColorConversionNeeded: function isColorConversionNeeded() { + if (this.adobe && this.adobe.transformCode) { + // The adobe transform marker overrides any previous setting + return true; + } else if (this.numComponents === 3) { + return true; + } else { + return false; + } + }, + + _convertYccToRgb: function convertYccToRgb(data) { + var Y, Cb, Cr; + for (var i = 0, length = data.length; i < length; i += 3) { + Y = data[i ]; + Cb = data[i + 1]; + Cr = data[i + 2]; + data[i ] = clamp0to255(Y - 179.456 + 1.402 * Cr); + data[i + 1] = clamp0to255(Y + 135.459 - 0.344 * Cb - 0.714 * Cr); + data[i + 2] = clamp0to255(Y - 226.816 + 1.772 * Cb); + } + return data; + }, + + _convertYcckToRgb: function convertYcckToRgb(data) { + var Y, Cb, Cr, k; + var offset = 0; + for (var i = 0, length = data.length; i < length; i += 4) { + Y = data[i]; + Cb = data[i + 1]; + Cr = data[i + 2]; + k = data[i + 3]; + + var r = -122.67195406894 + + Cb * (-6.60635669420364e-5 * Cb + 0.000437130475926232 * Cr - + 5.4080610064599e-5 * Y + 0.00048449797120281 * k - + 0.154362151871126) + + Cr * (-0.000957964378445773 * Cr + 0.000817076911346625 * Y - + 0.00477271405408747 * k + 1.53380253221734) + + Y * (0.000961250184130688 * Y - 0.00266257332283933 * k + + 0.48357088451265) + + k * (-0.000336197177618394 * k + 0.484791561490776); + + var g = 107.268039397724 + + Cb * (2.19927104525741e-5 * Cb - 0.000640992018297945 * Cr + + 0.000659397001245577 * Y + 0.000426105652938837 * k - + 0.176491792462875) + + Cr * (-0.000778269941513683 * Cr + 0.00130872261408275 * Y + + 0.000770482631801132 * k - 0.151051492775562) + + Y * (0.00126935368114843 * Y - 0.00265090189010898 * k + + 0.25802910206845) + + k * (-0.000318913117588328 * k - 0.213742400323665); + + var b = -20.810012546947 + + Cb * (-0.000570115196973677 * Cb - 2.63409051004589e-5 * Cr + + 0.0020741088115012 * Y - 0.00288260236853442 * k + + 0.814272968359295) + + Cr * (-1.53496057440975e-5 * Cr - 0.000132689043961446 * Y + + 0.000560833691242812 * k - 0.195152027534049) + + Y * (0.00174418132927582 * Y - 0.00255243321439347 * k + + 0.116935020465145) + + k * (-0.000343531996510555 * k + 0.24165260232407); + + data[offset++] = clamp0to255(r); + data[offset++] = clamp0to255(g); + data[offset++] = clamp0to255(b); + } + return data; + }, + + _convertYcckToCmyk: function convertYcckToCmyk(data) { + var Y, Cb, Cr; + for (var i = 0, length = data.length; i < length; i += 4) { + Y = data[i]; + Cb = data[i + 1]; + Cr = data[i + 2]; + data[i ] = clamp0to255(434.456 - Y - 1.402 * Cr); + data[i + 1] = clamp0to255(119.541 - Y + 0.344 * Cb + 0.714 * Cr); + data[i + 2] = clamp0to255(481.816 - Y - 1.772 * Cb); + // K in data[i + 3] is unchanged + } + return data; + }, + + _convertCmykToRgb: function convertCmykToRgb(data) { + var c, m, y, k; + var offset = 0; + var min = -255 * 255 * 255; + var scale = 1 / 255 / 255; + for (var i = 0, length = data.length; i < length; i += 4) { + c = data[i]; + m = data[i + 1]; + y = data[i + 2]; + k = data[i + 3]; + + var r = + c * (-4.387332384609988 * c + 54.48615194189176 * m + + 18.82290502165302 * y + 212.25662451639585 * k - + 72734.4411664936) + + m * (1.7149763477362134 * m - 5.6096736904047315 * y - + 17.873870861415444 * k - 1401.7366389350734) + + y * (-2.5217340131683033 * y - 21.248923337353073 * k + + 4465.541406466231) - + k * (21.86122147463605 * k + 48317.86113160301); + var g = + c * (8.841041422036149 * c + 60.118027045597366 * m + + 6.871425592049007 * y + 31.159100130055922 * k - + 20220.756542821975) + + m * (-15.310361306967817 * m + 17.575251261109482 * y + + 131.35250912493976 * k - 48691.05921601825) + + y * (4.444339102852739 * y + 9.8632861493405 * k - + 6341.191035517494) - + k * (20.737325471181034 * k + 47890.15695978492); + var b = + c * (0.8842522430003296 * c + 8.078677503112928 * m + + 30.89978309703729 * y - 0.23883238689178934 * k - + 3616.812083916688) + + m * (10.49593273432072 * m + 63.02378494754052 * y + + 50.606957656360734 * k - 28620.90484698408) + + y * (0.03296041114873217 * y + 115.60384449646641 * k - + 49363.43385999684) - + k * (22.33816807309886 * k + 45932.16563550634); + + data[offset++] = r >= 0 ? 255 : r <= min ? 0 : 255 + r * scale | 0; + data[offset++] = g >= 0 ? 255 : g <= min ? 0 : 255 + g * scale | 0; + data[offset++] = b >= 0 ? 255 : b <= min ? 0 : 255 + b * scale | 0; + } + return data; + }, + + getData: function getData(width, height, forceRGBoutput) { + if (this.numComponents > 4) { + throw 'Unsupported color mode'; + } + // type of data: Uint8Array(width * height * numComponents) + var data = this._getLinearizedBlockData(width, height); + + if (this.numComponents === 3) { + return this._convertYccToRgb(data); + } else if (this.numComponents === 4) { + if (this._isColorConversionNeeded()) { + if (forceRGBoutput) { + return this._convertYcckToRgb(data); + } else { + return this._convertYcckToCmyk(data); + } + } else if (forceRGBoutput) { + return this._convertCmykToRgb(data); + } + } + return data; + } + }; + + return constructor; +})(); + +exports.JpegImage = JpegImage; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreMetrics = {})); + } +}(this, function (exports) { + +// The Metrics object contains glyph widths (in glyph space units). +// As per PDF spec, for most fonts (Type 3 being an exception) a glyph +// space unit corresponds to 1/1000th of text space unit. +var Metrics = { + 'Courier': 600, + 'Courier-Bold': 600, + 'Courier-BoldOblique': 600, + 'Courier-Oblique': 600, + 'Helvetica' : { + 'space': 278, + 'exclam': 278, + 'quotedbl': 355, + 'numbersign': 556, + 'dollar': 556, + 'percent': 889, + 'ampersand': 667, + 'quoteright': 222, + 'parenleft': 333, + 'parenright': 333, + 'asterisk': 389, + 'plus': 584, + 'comma': 278, + 'hyphen': 333, + 'period': 278, + 'slash': 278, + 'zero': 556, + 'one': 556, + 'two': 556, + 'three': 556, + 'four': 556, + 'five': 556, + 'six': 556, + 'seven': 556, + 'eight': 556, + 'nine': 556, + 'colon': 278, + 'semicolon': 278, + 'less': 584, + 'equal': 584, + 'greater': 584, + 'question': 556, + 'at': 1015, + 'A': 667, + 'B': 667, + 'C': 722, + 'D': 722, + 'E': 667, + 'F': 611, + 'G': 778, + 'H': 722, + 'I': 278, + 'J': 500, + 'K': 667, + 'L': 556, + 'M': 833, + 'N': 722, + 'O': 778, + 'P': 667, + 'Q': 778, + 'R': 722, + 'S': 667, + 'T': 611, + 'U': 722, + 'V': 667, + 'W': 944, + 'X': 667, + 'Y': 667, + 'Z': 611, + 'bracketleft': 278, + 'backslash': 278, + 'bracketright': 278, + 'asciicircum': 469, + 'underscore': 556, + 'quoteleft': 222, + 'a': 556, + 'b': 556, + 'c': 500, + 'd': 556, + 'e': 556, + 'f': 278, + 'g': 556, + 'h': 556, + 'i': 222, + 'j': 222, + 'k': 500, + 'l': 222, + 'm': 833, + 'n': 556, + 'o': 556, + 'p': 556, + 'q': 556, + 'r': 333, + 's': 500, + 't': 278, + 'u': 556, + 'v': 500, + 'w': 722, + 'x': 500, + 'y': 500, + 'z': 500, + 'braceleft': 334, + 'bar': 260, + 'braceright': 334, + 'asciitilde': 584, + 'exclamdown': 333, + 'cent': 556, + 'sterling': 556, + 'fraction': 167, + 'yen': 556, + 'florin': 556, + 'section': 556, + 'currency': 556, + 'quotesingle': 191, + 'quotedblleft': 333, + 'guillemotleft': 556, + 'guilsinglleft': 333, + 'guilsinglright': 333, + 'fi': 500, + 'fl': 500, + 'endash': 556, + 'dagger': 556, + 'daggerdbl': 556, + 'periodcentered': 278, + 'paragraph': 537, + 'bullet': 350, + 'quotesinglbase': 222, + 'quotedblbase': 333, + 'quotedblright': 333, + 'guillemotright': 556, + 'ellipsis': 1000, + 'perthousand': 1000, + 'questiondown': 611, + 'grave': 333, + 'acute': 333, + 'circumflex': 333, + 'tilde': 333, + 'macron': 333, + 'breve': 333, + 'dotaccent': 333, + 'dieresis': 333, + 'ring': 333, + 'cedilla': 333, + 'hungarumlaut': 333, + 'ogonek': 333, + 'caron': 333, + 'emdash': 1000, + 'AE': 1000, + 'ordfeminine': 370, + 'Lslash': 556, + 'Oslash': 778, + 'OE': 1000, + 'ordmasculine': 365, + 'ae': 889, + 'dotlessi': 278, + 'lslash': 222, + 'oslash': 611, + 'oe': 944, + 'germandbls': 611, + 'Idieresis': 278, + 'eacute': 556, + 'abreve': 556, + 'uhungarumlaut': 556, + 'ecaron': 556, + 'Ydieresis': 667, + 'divide': 584, + 'Yacute': 667, + 'Acircumflex': 667, + 'aacute': 556, + 'Ucircumflex': 722, + 'yacute': 500, + 'scommaaccent': 500, + 'ecircumflex': 556, + 'Uring': 722, + 'Udieresis': 722, + 'aogonek': 556, + 'Uacute': 722, + 'uogonek': 556, + 'Edieresis': 667, + 'Dcroat': 722, + 'commaaccent': 250, + 'copyright': 737, + 'Emacron': 667, + 'ccaron': 500, + 'aring': 556, + 'Ncommaaccent': 722, + 'lacute': 222, + 'agrave': 556, + 'Tcommaaccent': 611, + 'Cacute': 722, + 'atilde': 556, + 'Edotaccent': 667, + 'scaron': 500, + 'scedilla': 500, + 'iacute': 278, + 'lozenge': 471, + 'Rcaron': 722, + 'Gcommaaccent': 778, + 'ucircumflex': 556, + 'acircumflex': 556, + 'Amacron': 667, + 'rcaron': 333, + 'ccedilla': 500, + 'Zdotaccent': 611, + 'Thorn': 667, + 'Omacron': 778, + 'Racute': 722, + 'Sacute': 667, + 'dcaron': 643, + 'Umacron': 722, + 'uring': 556, + 'threesuperior': 333, + 'Ograve': 778, + 'Agrave': 667, + 'Abreve': 667, + 'multiply': 584, + 'uacute': 556, + 'Tcaron': 611, + 'partialdiff': 476, + 'ydieresis': 500, + 'Nacute': 722, + 'icircumflex': 278, + 'Ecircumflex': 667, + 'adieresis': 556, + 'edieresis': 556, + 'cacute': 500, + 'nacute': 556, + 'umacron': 556, + 'Ncaron': 722, + 'Iacute': 278, + 'plusminus': 584, + 'brokenbar': 260, + 'registered': 737, + 'Gbreve': 778, + 'Idotaccent': 278, + 'summation': 600, + 'Egrave': 667, + 'racute': 333, + 'omacron': 556, + 'Zacute': 611, + 'Zcaron': 611, + 'greaterequal': 549, + 'Eth': 722, + 'Ccedilla': 722, + 'lcommaaccent': 222, + 'tcaron': 317, + 'eogonek': 556, + 'Uogonek': 722, + 'Aacute': 667, + 'Adieresis': 667, + 'egrave': 556, + 'zacute': 500, + 'iogonek': 222, + 'Oacute': 778, + 'oacute': 556, + 'amacron': 556, + 'sacute': 500, + 'idieresis': 278, + 'Ocircumflex': 778, + 'Ugrave': 722, + 'Delta': 612, + 'thorn': 556, + 'twosuperior': 333, + 'Odieresis': 778, + 'mu': 556, + 'igrave': 278, + 'ohungarumlaut': 556, + 'Eogonek': 667, + 'dcroat': 556, + 'threequarters': 834, + 'Scedilla': 667, + 'lcaron': 299, + 'Kcommaaccent': 667, + 'Lacute': 556, + 'trademark': 1000, + 'edotaccent': 556, + 'Igrave': 278, + 'Imacron': 278, + 'Lcaron': 556, + 'onehalf': 834, + 'lessequal': 549, + 'ocircumflex': 556, + 'ntilde': 556, + 'Uhungarumlaut': 722, + 'Eacute': 667, + 'emacron': 556, + 'gbreve': 556, + 'onequarter': 834, + 'Scaron': 667, + 'Scommaaccent': 667, + 'Ohungarumlaut': 778, + 'degree': 400, + 'ograve': 556, + 'Ccaron': 722, + 'ugrave': 556, + 'radical': 453, + 'Dcaron': 722, + 'rcommaaccent': 333, + 'Ntilde': 722, + 'otilde': 556, + 'Rcommaaccent': 722, + 'Lcommaaccent': 556, + 'Atilde': 667, + 'Aogonek': 667, + 'Aring': 667, + 'Otilde': 778, + 'zdotaccent': 500, + 'Ecaron': 667, + 'Iogonek': 278, + 'kcommaaccent': 500, + 'minus': 584, + 'Icircumflex': 278, + 'ncaron': 556, + 'tcommaaccent': 278, + 'logicalnot': 584, + 'odieresis': 556, + 'udieresis': 556, + 'notequal': 549, + 'gcommaaccent': 556, + 'eth': 556, + 'zcaron': 500, + 'ncommaaccent': 556, + 'onesuperior': 333, + 'imacron': 278, + 'Euro': 556 + }, + 'Helvetica-Bold': { + 'space': 278, + 'exclam': 333, + 'quotedbl': 474, + 'numbersign': 556, + 'dollar': 556, + 'percent': 889, + 'ampersand': 722, + 'quoteright': 278, + 'parenleft': 333, + 'parenright': 333, + 'asterisk': 389, + 'plus': 584, + 'comma': 278, + 'hyphen': 333, + 'period': 278, + 'slash': 278, + 'zero': 556, + 'one': 556, + 'two': 556, + 'three': 556, + 'four': 556, + 'five': 556, + 'six': 556, + 'seven': 556, + 'eight': 556, + 'nine': 556, + 'colon': 333, + 'semicolon': 333, + 'less': 584, + 'equal': 584, + 'greater': 584, + 'question': 611, + 'at': 975, + 'A': 722, + 'B': 722, + 'C': 722, + 'D': 722, + 'E': 667, + 'F': 611, + 'G': 778, + 'H': 722, + 'I': 278, + 'J': 556, + 'K': 722, + 'L': 611, + 'M': 833, + 'N': 722, + 'O': 778, + 'P': 667, + 'Q': 778, + 'R': 722, + 'S': 667, + 'T': 611, + 'U': 722, + 'V': 667, + 'W': 944, + 'X': 667, + 'Y': 667, + 'Z': 611, + 'bracketleft': 333, + 'backslash': 278, + 'bracketright': 333, + 'asciicircum': 584, + 'underscore': 556, + 'quoteleft': 278, + 'a': 556, + 'b': 611, + 'c': 556, + 'd': 611, + 'e': 556, + 'f': 333, + 'g': 611, + 'h': 611, + 'i': 278, + 'j': 278, + 'k': 556, + 'l': 278, + 'm': 889, + 'n': 611, + 'o': 611, + 'p': 611, + 'q': 611, + 'r': 389, + 's': 556, + 't': 333, + 'u': 611, + 'v': 556, + 'w': 778, + 'x': 556, + 'y': 556, + 'z': 500, + 'braceleft': 389, + 'bar': 280, + 'braceright': 389, + 'asciitilde': 584, + 'exclamdown': 333, + 'cent': 556, + 'sterling': 556, + 'fraction': 167, + 'yen': 556, + 'florin': 556, + 'section': 556, + 'currency': 556, + 'quotesingle': 238, + 'quotedblleft': 500, + 'guillemotleft': 556, + 'guilsinglleft': 333, + 'guilsinglright': 333, + 'fi': 611, + 'fl': 611, + 'endash': 556, + 'dagger': 556, + 'daggerdbl': 556, + 'periodcentered': 278, + 'paragraph': 556, + 'bullet': 350, + 'quotesinglbase': 278, + 'quotedblbase': 500, + 'quotedblright': 500, + 'guillemotright': 556, + 'ellipsis': 1000, + 'perthousand': 1000, + 'questiondown': 611, + 'grave': 333, + 'acute': 333, + 'circumflex': 333, + 'tilde': 333, + 'macron': 333, + 'breve': 333, + 'dotaccent': 333, + 'dieresis': 333, + 'ring': 333, + 'cedilla': 333, + 'hungarumlaut': 333, + 'ogonek': 333, + 'caron': 333, + 'emdash': 1000, + 'AE': 1000, + 'ordfeminine': 370, + 'Lslash': 611, + 'Oslash': 778, + 'OE': 1000, + 'ordmasculine': 365, + 'ae': 889, + 'dotlessi': 278, + 'lslash': 278, + 'oslash': 611, + 'oe': 944, + 'germandbls': 611, + 'Idieresis': 278, + 'eacute': 556, + 'abreve': 556, + 'uhungarumlaut': 611, + 'ecaron': 556, + 'Ydieresis': 667, + 'divide': 584, + 'Yacute': 667, + 'Acircumflex': 722, + 'aacute': 556, + 'Ucircumflex': 722, + 'yacute': 556, + 'scommaaccent': 556, + 'ecircumflex': 556, + 'Uring': 722, + 'Udieresis': 722, + 'aogonek': 556, + 'Uacute': 722, + 'uogonek': 611, + 'Edieresis': 667, + 'Dcroat': 722, + 'commaaccent': 250, + 'copyright': 737, + 'Emacron': 667, + 'ccaron': 556, + 'aring': 556, + 'Ncommaaccent': 722, + 'lacute': 278, + 'agrave': 556, + 'Tcommaaccent': 611, + 'Cacute': 722, + 'atilde': 556, + 'Edotaccent': 667, + 'scaron': 556, + 'scedilla': 556, + 'iacute': 278, + 'lozenge': 494, + 'Rcaron': 722, + 'Gcommaaccent': 778, + 'ucircumflex': 611, + 'acircumflex': 556, + 'Amacron': 722, + 'rcaron': 389, + 'ccedilla': 556, + 'Zdotaccent': 611, + 'Thorn': 667, + 'Omacron': 778, + 'Racute': 722, + 'Sacute': 667, + 'dcaron': 743, + 'Umacron': 722, + 'uring': 611, + 'threesuperior': 333, + 'Ograve': 778, + 'Agrave': 722, + 'Abreve': 722, + 'multiply': 584, + 'uacute': 611, + 'Tcaron': 611, + 'partialdiff': 494, + 'ydieresis': 556, + 'Nacute': 722, + 'icircumflex': 278, + 'Ecircumflex': 667, + 'adieresis': 556, + 'edieresis': 556, + 'cacute': 556, + 'nacute': 611, + 'umacron': 611, + 'Ncaron': 722, + 'Iacute': 278, + 'plusminus': 584, + 'brokenbar': 280, + 'registered': 737, + 'Gbreve': 778, + 'Idotaccent': 278, + 'summation': 600, + 'Egrave': 667, + 'racute': 389, + 'omacron': 611, + 'Zacute': 611, + 'Zcaron': 611, + 'greaterequal': 549, + 'Eth': 722, + 'Ccedilla': 722, + 'lcommaaccent': 278, + 'tcaron': 389, + 'eogonek': 556, + 'Uogonek': 722, + 'Aacute': 722, + 'Adieresis': 722, + 'egrave': 556, + 'zacute': 500, + 'iogonek': 278, + 'Oacute': 778, + 'oacute': 611, + 'amacron': 556, + 'sacute': 556, + 'idieresis': 278, + 'Ocircumflex': 778, + 'Ugrave': 722, + 'Delta': 612, + 'thorn': 611, + 'twosuperior': 333, + 'Odieresis': 778, + 'mu': 611, + 'igrave': 278, + 'ohungarumlaut': 611, + 'Eogonek': 667, + 'dcroat': 611, + 'threequarters': 834, + 'Scedilla': 667, + 'lcaron': 400, + 'Kcommaaccent': 722, + 'Lacute': 611, + 'trademark': 1000, + 'edotaccent': 556, + 'Igrave': 278, + 'Imacron': 278, + 'Lcaron': 611, + 'onehalf': 834, + 'lessequal': 549, + 'ocircumflex': 611, + 'ntilde': 611, + 'Uhungarumlaut': 722, + 'Eacute': 667, + 'emacron': 556, + 'gbreve': 611, + 'onequarter': 834, + 'Scaron': 667, + 'Scommaaccent': 667, + 'Ohungarumlaut': 778, + 'degree': 400, + 'ograve': 611, + 'Ccaron': 722, + 'ugrave': 611, + 'radical': 549, + 'Dcaron': 722, + 'rcommaaccent': 389, + 'Ntilde': 722, + 'otilde': 611, + 'Rcommaaccent': 722, + 'Lcommaaccent': 611, + 'Atilde': 722, + 'Aogonek': 722, + 'Aring': 722, + 'Otilde': 778, + 'zdotaccent': 500, + 'Ecaron': 667, + 'Iogonek': 278, + 'kcommaaccent': 556, + 'minus': 584, + 'Icircumflex': 278, + 'ncaron': 611, + 'tcommaaccent': 333, + 'logicalnot': 584, + 'odieresis': 611, + 'udieresis': 611, + 'notequal': 549, + 'gcommaaccent': 611, + 'eth': 611, + 'zcaron': 500, + 'ncommaaccent': 611, + 'onesuperior': 333, + 'imacron': 278, + 'Euro': 556 + }, + 'Helvetica-BoldOblique': { + 'space': 278, + 'exclam': 333, + 'quotedbl': 474, + 'numbersign': 556, + 'dollar': 556, + 'percent': 889, + 'ampersand': 722, + 'quoteright': 278, + 'parenleft': 333, + 'parenright': 333, + 'asterisk': 389, + 'plus': 584, + 'comma': 278, + 'hyphen': 333, + 'period': 278, + 'slash': 278, + 'zero': 556, + 'one': 556, + 'two': 556, + 'three': 556, + 'four': 556, + 'five': 556, + 'six': 556, + 'seven': 556, + 'eight': 556, + 'nine': 556, + 'colon': 333, + 'semicolon': 333, + 'less': 584, + 'equal': 584, + 'greater': 584, + 'question': 611, + 'at': 975, + 'A': 722, + 'B': 722, + 'C': 722, + 'D': 722, + 'E': 667, + 'F': 611, + 'G': 778, + 'H': 722, + 'I': 278, + 'J': 556, + 'K': 722, + 'L': 611, + 'M': 833, + 'N': 722, + 'O': 778, + 'P': 667, + 'Q': 778, + 'R': 722, + 'S': 667, + 'T': 611, + 'U': 722, + 'V': 667, + 'W': 944, + 'X': 667, + 'Y': 667, + 'Z': 611, + 'bracketleft': 333, + 'backslash': 278, + 'bracketright': 333, + 'asciicircum': 584, + 'underscore': 556, + 'quoteleft': 278, + 'a': 556, + 'b': 611, + 'c': 556, + 'd': 611, + 'e': 556, + 'f': 333, + 'g': 611, + 'h': 611, + 'i': 278, + 'j': 278, + 'k': 556, + 'l': 278, + 'm': 889, + 'n': 611, + 'o': 611, + 'p': 611, + 'q': 611, + 'r': 389, + 's': 556, + 't': 333, + 'u': 611, + 'v': 556, + 'w': 778, + 'x': 556, + 'y': 556, + 'z': 500, + 'braceleft': 389, + 'bar': 280, + 'braceright': 389, + 'asciitilde': 584, + 'exclamdown': 333, + 'cent': 556, + 'sterling': 556, + 'fraction': 167, + 'yen': 556, + 'florin': 556, + 'section': 556, + 'currency': 556, + 'quotesingle': 238, + 'quotedblleft': 500, + 'guillemotleft': 556, + 'guilsinglleft': 333, + 'guilsinglright': 333, + 'fi': 611, + 'fl': 611, + 'endash': 556, + 'dagger': 556, + 'daggerdbl': 556, + 'periodcentered': 278, + 'paragraph': 556, + 'bullet': 350, + 'quotesinglbase': 278, + 'quotedblbase': 500, + 'quotedblright': 500, + 'guillemotright': 556, + 'ellipsis': 1000, + 'perthousand': 1000, + 'questiondown': 611, + 'grave': 333, + 'acute': 333, + 'circumflex': 333, + 'tilde': 333, + 'macron': 333, + 'breve': 333, + 'dotaccent': 333, + 'dieresis': 333, + 'ring': 333, + 'cedilla': 333, + 'hungarumlaut': 333, + 'ogonek': 333, + 'caron': 333, + 'emdash': 1000, + 'AE': 1000, + 'ordfeminine': 370, + 'Lslash': 611, + 'Oslash': 778, + 'OE': 1000, + 'ordmasculine': 365, + 'ae': 889, + 'dotlessi': 278, + 'lslash': 278, + 'oslash': 611, + 'oe': 944, + 'germandbls': 611, + 'Idieresis': 278, + 'eacute': 556, + 'abreve': 556, + 'uhungarumlaut': 611, + 'ecaron': 556, + 'Ydieresis': 667, + 'divide': 584, + 'Yacute': 667, + 'Acircumflex': 722, + 'aacute': 556, + 'Ucircumflex': 722, + 'yacute': 556, + 'scommaaccent': 556, + 'ecircumflex': 556, + 'Uring': 722, + 'Udieresis': 722, + 'aogonek': 556, + 'Uacute': 722, + 'uogonek': 611, + 'Edieresis': 667, + 'Dcroat': 722, + 'commaaccent': 250, + 'copyright': 737, + 'Emacron': 667, + 'ccaron': 556, + 'aring': 556, + 'Ncommaaccent': 722, + 'lacute': 278, + 'agrave': 556, + 'Tcommaaccent': 611, + 'Cacute': 722, + 'atilde': 556, + 'Edotaccent': 667, + 'scaron': 556, + 'scedilla': 556, + 'iacute': 278, + 'lozenge': 494, + 'Rcaron': 722, + 'Gcommaaccent': 778, + 'ucircumflex': 611, + 'acircumflex': 556, + 'Amacron': 722, + 'rcaron': 389, + 'ccedilla': 556, + 'Zdotaccent': 611, + 'Thorn': 667, + 'Omacron': 778, + 'Racute': 722, + 'Sacute': 667, + 'dcaron': 743, + 'Umacron': 722, + 'uring': 611, + 'threesuperior': 333, + 'Ograve': 778, + 'Agrave': 722, + 'Abreve': 722, + 'multiply': 584, + 'uacute': 611, + 'Tcaron': 611, + 'partialdiff': 494, + 'ydieresis': 556, + 'Nacute': 722, + 'icircumflex': 278, + 'Ecircumflex': 667, + 'adieresis': 556, + 'edieresis': 556, + 'cacute': 556, + 'nacute': 611, + 'umacron': 611, + 'Ncaron': 722, + 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611, + 'Uhungarumlaut': 722, + 'Eacute': 667, + 'emacron': 556, + 'gbreve': 611, + 'onequarter': 834, + 'Scaron': 667, + 'Scommaaccent': 667, + 'Ohungarumlaut': 778, + 'degree': 400, + 'ograve': 611, + 'Ccaron': 722, + 'ugrave': 611, + 'radical': 549, + 'Dcaron': 722, + 'rcommaaccent': 389, + 'Ntilde': 722, + 'otilde': 611, + 'Rcommaaccent': 722, + 'Lcommaaccent': 611, + 'Atilde': 722, + 'Aogonek': 722, + 'Aring': 722, + 'Otilde': 778, + 'zdotaccent': 500, + 'Ecaron': 667, + 'Iogonek': 278, + 'kcommaaccent': 556, + 'minus': 584, + 'Icircumflex': 278, + 'ncaron': 611, + 'tcommaaccent': 333, + 'logicalnot': 584, + 'odieresis': 611, + 'udieresis': 611, + 'notequal': 549, + 'gcommaaccent': 611, + 'eth': 611, + 'zcaron': 500, + 'ncommaaccent': 611, + 'onesuperior': 333, + 'imacron': 278, + 'Euro': 556 + }, + 'Helvetica-Oblique' : { + 'space': 278, + 'exclam': 278, + 'quotedbl': 355, + 'numbersign': 556, + 'dollar': 556, + 'percent': 889, + 'ampersand': 667, + 'quoteright': 222, + 'parenleft': 333, + 'parenright': 333, + 'asterisk': 389, + 'plus': 584, + 'comma': 278, + 'hyphen': 333, + 'period': 278, + 'slash': 278, + 'zero': 556, + 'one': 556, + 'two': 556, + 'three': 556, + 'four': 556, + 'five': 556, + 'six': 556, + 'seven': 556, + 'eight': 556, + 'nine': 556, + 'colon': 278, + 'semicolon': 278, + 'less': 584, + 'equal': 584, + 'greater': 584, + 'question': 556, + 'at': 1015, + 'A': 667, + 'B': 667, + 'C': 722, + 'D': 722, + 'E': 667, + 'F': 611, + 'G': 778, + 'H': 722, + 'I': 278, + 'J': 500, + 'K': 667, + 'L': 556, + 'M': 833, + 'N': 722, + 'O': 778, + 'P': 667, + 'Q': 778, + 'R': 722, + 'S': 667, + 'T': 611, + 'U': 722, + 'V': 667, + 'W': 944, + 'X': 667, + 'Y': 667, + 'Z': 611, + 'bracketleft': 278, + 'backslash': 278, + 'bracketright': 278, + 'asciicircum': 469, + 'underscore': 556, + 'quoteleft': 222, + 'a': 556, + 'b': 556, + 'c': 500, + 'd': 556, + 'e': 556, + 'f': 278, + 'g': 556, + 'h': 556, + 'i': 222, + 'j': 222, + 'k': 500, + 'l': 222, + 'm': 833, + 'n': 556, + 'o': 556, + 'p': 556, + 'q': 556, + 'r': 333, + 's': 500, + 't': 278, + 'u': 556, + 'v': 500, + 'w': 722, + 'x': 500, + 'y': 500, + 'z': 500, + 'braceleft': 334, + 'bar': 260, + 'braceright': 334, + 'asciitilde': 584, + 'exclamdown': 333, + 'cent': 556, + 'sterling': 556, + 'fraction': 167, + 'yen': 556, + 'florin': 556, + 'section': 556, + 'currency': 556, + 'quotesingle': 191, + 'quotedblleft': 333, + 'guillemotleft': 556, + 'guilsinglleft': 333, + 'guilsinglright': 333, + 'fi': 500, + 'fl': 500, + 'endash': 556, + 'dagger': 556, + 'daggerdbl': 556, + 'periodcentered': 278, + 'paragraph': 537, + 'bullet': 350, + 'quotesinglbase': 222, + 'quotedblbase': 333, + 'quotedblright': 333, + 'guillemotright': 556, + 'ellipsis': 1000, + 'perthousand': 1000, + 'questiondown': 611, + 'grave': 333, + 'acute': 333, + 'circumflex': 333, + 'tilde': 333, + 'macron': 333, + 'breve': 333, + 'dotaccent': 333, + 'dieresis': 333, + 'ring': 333, + 'cedilla': 333, + 'hungarumlaut': 333, + 'ogonek': 333, + 'caron': 333, + 'emdash': 1000, + 'AE': 1000, + 'ordfeminine': 370, + 'Lslash': 556, + 'Oslash': 778, + 'OE': 1000, + 'ordmasculine': 365, + 'ae': 889, + 'dotlessi': 278, + 'lslash': 222, + 'oslash': 611, + 'oe': 944, + 'germandbls': 611, + 'Idieresis': 278, + 'eacute': 556, + 'abreve': 556, + 'uhungarumlaut': 556, + 'ecaron': 556, + 'Ydieresis': 667, + 'divide': 584, + 'Yacute': 667, + 'Acircumflex': 667, + 'aacute': 556, + 'Ucircumflex': 722, + 'yacute': 500, + 'scommaaccent': 500, + 'ecircumflex': 556, + 'Uring': 722, + 'Udieresis': 722, + 'aogonek': 556, + 'Uacute': 722, + 'uogonek': 556, + 'Edieresis': 667, + 'Dcroat': 722, + 'commaaccent': 250, + 'copyright': 737, + 'Emacron': 667, + 'ccaron': 500, + 'aring': 556, + 'Ncommaaccent': 722, + 'lacute': 222, + 'agrave': 556, + 'Tcommaaccent': 611, + 'Cacute': 722, + 'atilde': 556, + 'Edotaccent': 667, + 'scaron': 500, + 'scedilla': 500, + 'iacute': 278, + 'lozenge': 471, + 'Rcaron': 722, + 'Gcommaaccent': 778, + 'ucircumflex': 556, + 'acircumflex': 556, + 'Amacron': 667, + 'rcaron': 333, + 'ccedilla': 500, + 'Zdotaccent': 611, + 'Thorn': 667, + 'Omacron': 778, + 'Racute': 722, + 'Sacute': 667, + 'dcaron': 643, + 'Umacron': 722, + 'uring': 556, + 'threesuperior': 333, + 'Ograve': 778, + 'Agrave': 667, + 'Abreve': 667, + 'multiply': 584, + 'uacute': 556, + 'Tcaron': 611, + 'partialdiff': 476, + 'ydieresis': 500, + 'Nacute': 722, + 'icircumflex': 278, + 'Ecircumflex': 667, + 'adieresis': 556, + 'edieresis': 556, + 'cacute': 500, + 'nacute': 556, + 'umacron': 556, + 'Ncaron': 722, + 'Iacute': 278, + 'plusminus': 584, + 'brokenbar': 260, + 'registered': 737, + 'Gbreve': 778, + 'Idotaccent': 278, + 'summation': 600, + 'Egrave': 667, + 'racute': 333, + 'omacron': 556, + 'Zacute': 611, + 'Zcaron': 611, + 'greaterequal': 549, + 'Eth': 722, + 'Ccedilla': 722, + 'lcommaaccent': 222, + 'tcaron': 317, + 'eogonek': 556, + 'Uogonek': 722, + 'Aacute': 667, + 'Adieresis': 667, + 'egrave': 556, + 'zacute': 500, + 'iogonek': 222, + 'Oacute': 778, + 'oacute': 556, + 'amacron': 556, + 'sacute': 500, + 'idieresis': 278, + 'Ocircumflex': 778, + 'Ugrave': 722, + 'Delta': 612, + 'thorn': 556, + 'twosuperior': 333, + 'Odieresis': 778, + 'mu': 556, + 'igrave': 278, + 'ohungarumlaut': 556, + 'Eogonek': 667, + 'dcroat': 556, + 'threequarters': 834, + 'Scedilla': 667, + 'lcaron': 299, + 'Kcommaaccent': 667, + 'Lacute': 556, + 'trademark': 1000, + 'edotaccent': 556, + 'Igrave': 278, + 'Imacron': 278, + 'Lcaron': 556, + 'onehalf': 834, + 'lessequal': 549, + 'ocircumflex': 556, + 'ntilde': 556, + 'Uhungarumlaut': 722, + 'Eacute': 667, + 'emacron': 556, + 'gbreve': 556, + 'onequarter': 834, + 'Scaron': 667, + 'Scommaaccent': 667, + 'Ohungarumlaut': 778, + 'degree': 400, + 'ograve': 556, + 'Ccaron': 722, + 'ugrave': 556, + 'radical': 453, + 'Dcaron': 722, + 'rcommaaccent': 333, + 'Ntilde': 722, + 'otilde': 556, + 'Rcommaaccent': 722, + 'Lcommaaccent': 556, + 'Atilde': 667, + 'Aogonek': 667, + 'Aring': 667, + 'Otilde': 778, + 'zdotaccent': 500, + 'Ecaron': 667, + 'Iogonek': 278, + 'kcommaaccent': 500, + 'minus': 584, + 'Icircumflex': 278, + 'ncaron': 556, + 'tcommaaccent': 278, + 'logicalnot': 584, + 'odieresis': 556, + 'udieresis': 556, + 'notequal': 549, + 'gcommaaccent': 556, + 'eth': 556, + 'zcaron': 500, + 'ncommaaccent': 556, + 'onesuperior': 333, + 'imacron': 278, + 'Euro': 556 + }, + 'Symbol': { + 'space': 250, + 'exclam': 333, + 'universal': 713, + 'numbersign': 500, + 'existential': 549, + 'percent': 833, + 'ampersand': 778, + 'suchthat': 439, + 'parenleft': 333, + 'parenright': 333, + 'asteriskmath': 500, + 'plus': 549, + 'comma': 250, + 'minus': 549, + 'period': 250, + 'slash': 278, + 'zero': 500, + 'one': 500, + 'two': 500, + 'three': 500, + 'four': 500, + 'five': 500, + 'six': 500, + 'seven': 500, + 'eight': 500, + 'nine': 500, + 'colon': 278, + 'semicolon': 278, + 'less': 549, + 'equal': 549, + 'greater': 549, + 'question': 444, + 'congruent': 549, + 'Alpha': 722, + 'Beta': 667, + 'Chi': 722, + 'Delta': 612, + 'Epsilon': 611, + 'Phi': 763, + 'Gamma': 603, + 'Eta': 722, + 'Iota': 333, + 'theta1': 631, + 'Kappa': 722, + 'Lambda': 686, + 'Mu': 889, + 'Nu': 722, + 'Omicron': 722, + 'Pi': 768, + 'Theta': 741, + 'Rho': 556, + 'Sigma': 592, + 'Tau': 611, + 'Upsilon': 690, + 'sigma1': 439, + 'Omega': 768, + 'Xi': 645, + 'Psi': 795, + 'Zeta': 611, + 'bracketleft': 333, + 'therefore': 863, + 'bracketright': 333, + 'perpendicular': 658, + 'underscore': 500, + 'radicalex': 500, + 'alpha': 631, + 'beta': 549, + 'chi': 549, + 'delta': 494, + 'epsilon': 439, + 'phi': 521, + 'gamma': 411, + 'eta': 603, + 'iota': 329, + 'phi1': 603, + 'kappa': 549, + 'lambda': 549, + 'mu': 576, + 'nu': 521, + 'omicron': 549, + 'pi': 549, + 'theta': 521, + 'rho': 549, + 'sigma': 603, + 'tau': 439, + 'upsilon': 576, + 'omega1': 713, + 'omega': 686, + 'xi': 493, + 'psi': 686, + 'zeta': 494, + 'braceleft': 480, + 'bar': 200, + 'braceright': 480, + 'similar': 549, + 'Euro': 750, + 'Upsilon1': 620, + 'minute': 247, + 'lessequal': 549, + 'fraction': 167, + 'infinity': 713, + 'florin': 500, + 'club': 753, + 'diamond': 753, + 'heart': 753, + 'spade': 753, + 'arrowboth': 1042, + 'arrowleft': 987, + 'arrowup': 603, + 'arrowright': 987, + 'arrowdown': 603, + 'degree': 400, + 'plusminus': 549, + 'second': 411, + 'greaterequal': 549, + 'multiply': 549, + 'proportional': 713, + 'partialdiff': 494, + 'bullet': 460, + 'divide': 549, + 'notequal': 549, + 'equivalence': 549, + 'approxequal': 549, + 'ellipsis': 1000, + 'arrowvertex': 603, + 'arrowhorizex': 1000, + 'carriagereturn': 658, + 'aleph': 823, + 'Ifraktur': 686, + 'Rfraktur': 795, + 'weierstrass': 987, + 'circlemultiply': 768, + 'circleplus': 768, + 'emptyset': 823, + 'intersection': 768, + 'union': 768, + 'propersuperset': 713, + 'reflexsuperset': 713, + 'notsubset': 713, + 'propersubset': 713, + 'reflexsubset': 713, + 'element': 713, + 'notelement': 713, + 'angle': 768, + 'gradient': 713, + 'registerserif': 790, + 'copyrightserif': 790, + 'trademarkserif': 890, + 'product': 823, + 'radical': 549, + 'dotmath': 250, + 'logicalnot': 713, + 'logicaland': 603, + 'logicalor': 603, + 'arrowdblboth': 1042, + 'arrowdblleft': 987, + 'arrowdblup': 603, + 'arrowdblright': 987, + 'arrowdbldown': 603, + 'lozenge': 494, + 'angleleft': 329, + 'registersans': 790, + 'copyrightsans': 790, + 'trademarksans': 786, + 'summation': 713, + 'parenlefttp': 384, + 'parenleftex': 384, + 'parenleftbt': 384, + 'bracketlefttp': 384, + 'bracketleftex': 384, + 'bracketleftbt': 384, + 'bracelefttp': 494, + 'braceleftmid': 494, + 'braceleftbt': 494, + 'braceex': 494, + 'angleright': 329, + 'integral': 274, + 'integraltp': 686, + 'integralex': 686, + 'integralbt': 686, + 'parenrighttp': 384, + 'parenrightex': 384, + 'parenrightbt': 384, + 'bracketrighttp': 384, + 'bracketrightex': 384, + 'bracketrightbt': 384, + 'bracerighttp': 494, + 'bracerightmid': 494, + 'bracerightbt': 494, + 'apple': 790 + }, + 'Times-Roman': { + 'space': 250, + 'exclam': 333, + 'quotedbl': 408, + 'numbersign': 500, + 'dollar': 500, + 'percent': 833, + 'ampersand': 778, + 'quoteright': 333, + 'parenleft': 333, + 'parenright': 333, + 'asterisk': 500, + 'plus': 564, + 'comma': 250, + 'hyphen': 333, + 'period': 250, + 'slash': 278, + 'zero': 500, + 'one': 500, + 'two': 500, + 'three': 500, + 'four': 500, + 'five': 500, + 'six': 500, + 'seven': 500, + 'eight': 500, + 'nine': 500, + 'colon': 278, + 'semicolon': 278, + 'less': 564, + 'equal': 564, + 'greater': 564, + 'question': 444, + 'at': 921, + 'A': 722, + 'B': 667, + 'C': 667, + 'D': 722, + 'E': 611, + 'F': 556, + 'G': 722, + 'H': 722, + 'I': 333, + 'J': 389, + 'K': 722, + 'L': 611, + 'M': 889, + 'N': 722, + 'O': 722, + 'P': 556, + 'Q': 722, + 'R': 667, + 'S': 556, + 'T': 611, + 'U': 722, + 'V': 722, + 'W': 944, + 'X': 722, + 'Y': 722, + 'Z': 611, + 'bracketleft': 333, + 'backslash': 278, + 'bracketright': 333, + 'asciicircum': 469, + 'underscore': 500, + 'quoteleft': 333, + 'a': 444, + 'b': 500, + 'c': 444, + 'd': 500, + 'e': 444, + 'f': 333, + 'g': 500, + 'h': 500, + 'i': 278, + 'j': 278, + 'k': 500, + 'l': 278, + 'm': 778, + 'n': 500, + 'o': 500, + 'p': 500, + 'q': 500, + 'r': 333, + 's': 389, + 't': 278, + 'u': 500, + 'v': 500, + 'w': 722, + 'x': 500, + 'y': 500, + 'z': 444, + 'braceleft': 480, + 'bar': 200, + 'braceright': 480, + 'asciitilde': 541, + 'exclamdown': 333, + 'cent': 500, + 'sterling': 500, + 'fraction': 167, + 'yen': 500, + 'florin': 500, + 'section': 500, + 'currency': 500, + 'quotesingle': 180, + 'quotedblleft': 444, + 'guillemotleft': 500, + 'guilsinglleft': 333, + 'guilsinglright': 333, + 'fi': 556, + 'fl': 556, + 'endash': 500, + 'dagger': 500, + 'daggerdbl': 500, + 'periodcentered': 250, + 'paragraph': 453, + 'bullet': 350, + 'quotesinglbase': 333, + 'quotedblbase': 444, + 'quotedblright': 444, + 'guillemotright': 500, + 'ellipsis': 1000, + 'perthousand': 1000, + 'questiondown': 444, + 'grave': 333, + 'acute': 333, + 'circumflex': 333, + 'tilde': 333, + 'macron': 333, + 'breve': 333, + 'dotaccent': 333, + 'dieresis': 333, + 'ring': 333, + 'cedilla': 333, + 'hungarumlaut': 333, + 'ogonek': 333, + 'caron': 333, + 'emdash': 1000, + 'AE': 889, + 'ordfeminine': 276, + 'Lslash': 611, + 'Oslash': 722, + 'OE': 889, + 'ordmasculine': 310, + 'ae': 667, + 'dotlessi': 278, + 'lslash': 278, + 'oslash': 500, + 'oe': 722, + 'germandbls': 500, + 'Idieresis': 333, + 'eacute': 444, + 'abreve': 444, + 'uhungarumlaut': 500, + 'ecaron': 444, + 'Ydieresis': 722, + 'divide': 564, + 'Yacute': 722, + 'Acircumflex': 722, + 'aacute': 444, + 'Ucircumflex': 722, + 'yacute': 500, + 'scommaaccent': 389, + 'ecircumflex': 444, + 'Uring': 722, + 'Udieresis': 722, + 'aogonek': 444, + 'Uacute': 722, + 'uogonek': 500, + 'Edieresis': 611, + 'Dcroat': 722, + 'commaaccent': 250, + 'copyright': 760, + 'Emacron': 611, + 'ccaron': 444, + 'aring': 444, + 'Ncommaaccent': 722, + 'lacute': 278, + 'agrave': 444, + 'Tcommaaccent': 611, + 'Cacute': 667, + 'atilde': 444, + 'Edotaccent': 611, + 'scaron': 389, + 'scedilla': 389, + 'iacute': 278, + 'lozenge': 471, + 'Rcaron': 667, + 'Gcommaaccent': 722, + 'ucircumflex': 500, + 'acircumflex': 444, + 'Amacron': 722, + 'rcaron': 333, + 'ccedilla': 444, + 'Zdotaccent': 611, + 'Thorn': 556, + 'Omacron': 722, + 'Racute': 667, + 'Sacute': 556, + 'dcaron': 588, + 'Umacron': 722, + 'uring': 500, + 'threesuperior': 300, + 'Ograve': 722, + 'Agrave': 722, + 'Abreve': 722, + 'multiply': 564, + 'uacute': 500, + 'Tcaron': 611, + 'partialdiff': 476, + 'ydieresis': 500, + 'Nacute': 722, + 'icircumflex': 278, + 'Ecircumflex': 611, + 'adieresis': 444, + 'edieresis': 444, + 'cacute': 444, + 'nacute': 500, + 'umacron': 500, + 'Ncaron': 722, + 'Iacute': 333, + 'plusminus': 564, + 'brokenbar': 200, + 'registered': 760, + 'Gbreve': 722, + 'Idotaccent': 333, + 'summation': 600, + 'Egrave': 611, + 'racute': 333, + 'omacron': 500, + 'Zacute': 611, + 'Zcaron': 611, + 'greaterequal': 549, + 'Eth': 722, + 'Ccedilla': 667, + 'lcommaaccent': 278, + 'tcaron': 326, + 'eogonek': 444, + 'Uogonek': 722, + 'Aacute': 722, + 'Adieresis': 722, + 'egrave': 444, + 'zacute': 444, + 'iogonek': 278, + 'Oacute': 722, + 'oacute': 500, + 'amacron': 444, + 'sacute': 389, + 'idieresis': 278, + 'Ocircumflex': 722, + 'Ugrave': 722, + 'Delta': 612, + 'thorn': 500, + 'twosuperior': 300, + 'Odieresis': 722, + 'mu': 500, + 'igrave': 278, + 'ohungarumlaut': 500, + 'Eogonek': 611, + 'dcroat': 500, + 'threequarters': 750, + 'Scedilla': 556, + 'lcaron': 344, + 'Kcommaaccent': 722, + 'Lacute': 611, + 'trademark': 980, + 'edotaccent': 444, + 'Igrave': 333, + 'Imacron': 333, + 'Lcaron': 611, + 'onehalf': 750, + 'lessequal': 549, + 'ocircumflex': 500, + 'ntilde': 500, + 'Uhungarumlaut': 722, + 'Eacute': 611, + 'emacron': 444, + 'gbreve': 500, + 'onequarter': 750, + 'Scaron': 556, + 'Scommaaccent': 556, + 'Ohungarumlaut': 722, + 'degree': 400, + 'ograve': 500, + 'Ccaron': 667, + 'ugrave': 500, + 'radical': 453, + 'Dcaron': 722, + 'rcommaaccent': 333, + 'Ntilde': 722, + 'otilde': 500, + 'Rcommaaccent': 667, + 'Lcommaaccent': 611, + 'Atilde': 722, + 'Aogonek': 722, + 'Aring': 722, + 'Otilde': 722, + 'zdotaccent': 444, + 'Ecaron': 611, + 'Iogonek': 333, + 'kcommaaccent': 500, + 'minus': 564, + 'Icircumflex': 333, + 'ncaron': 500, + 'tcommaaccent': 278, + 'logicalnot': 564, + 'odieresis': 500, + 'udieresis': 500, + 'notequal': 549, + 'gcommaaccent': 500, + 'eth': 500, + 'zcaron': 444, + 'ncommaaccent': 500, + 'onesuperior': 300, + 'imacron': 278, + 'Euro': 500 + }, + 'Times-Bold': { + 'space': 250, + 'exclam': 333, + 'quotedbl': 555, + 'numbersign': 500, + 'dollar': 500, + 'percent': 1000, + 'ampersand': 833, + 'quoteright': 333, + 'parenleft': 333, + 'parenright': 333, + 'asterisk': 500, + 'plus': 570, + 'comma': 250, + 'hyphen': 333, + 'period': 250, + 'slash': 278, + 'zero': 500, + 'one': 500, + 'two': 500, + 'three': 500, + 'four': 500, + 'five': 500, + 'six': 500, + 'seven': 500, + 'eight': 500, + 'nine': 500, + 'colon': 333, + 'semicolon': 333, + 'less': 570, + 'equal': 570, + 'greater': 570, + 'question': 500, + 'at': 930, + 'A': 722, + 'B': 667, + 'C': 722, + 'D': 722, + 'E': 667, + 'F': 611, + 'G': 778, + 'H': 778, + 'I': 389, + 'J': 500, + 'K': 778, + 'L': 667, + 'M': 944, + 'N': 722, + 'O': 778, + 'P': 611, + 'Q': 778, + 'R': 722, + 'S': 556, + 'T': 667, + 'U': 722, + 'V': 722, + 'W': 1000, + 'X': 722, + 'Y': 722, + 'Z': 667, + 'bracketleft': 333, + 'backslash': 278, + 'bracketright': 333, + 'asciicircum': 581, + 'underscore': 500, + 'quoteleft': 333, + 'a': 500, + 'b': 556, + 'c': 444, + 'd': 556, + 'e': 444, + 'f': 333, + 'g': 500, + 'h': 556, + 'i': 278, + 'j': 333, + 'k': 556, + 'l': 278, + 'm': 833, + 'n': 556, + 'o': 500, + 'p': 556, + 'q': 556, + 'r': 444, + 's': 389, + 't': 333, + 'u': 556, + 'v': 500, + 'w': 722, + 'x': 500, + 'y': 500, + 'z': 444, + 'braceleft': 394, + 'bar': 220, + 'braceright': 394, + 'asciitilde': 520, + 'exclamdown': 333, + 'cent': 500, + 'sterling': 500, + 'fraction': 167, + 'yen': 500, + 'florin': 500, + 'section': 500, + 'currency': 500, + 'quotesingle': 278, + 'quotedblleft': 500, + 'guillemotleft': 500, + 'guilsinglleft': 333, + 'guilsinglright': 333, + 'fi': 556, + 'fl': 556, + 'endash': 500, + 'dagger': 500, + 'daggerdbl': 500, + 'periodcentered': 250, + 'paragraph': 540, + 'bullet': 350, + 'quotesinglbase': 333, + 'quotedblbase': 500, + 'quotedblright': 500, + 'guillemotright': 500, + 'ellipsis': 1000, + 'perthousand': 1000, + 'questiondown': 500, + 'grave': 333, + 'acute': 333, + 'circumflex': 333, + 'tilde': 333, + 'macron': 333, + 'breve': 333, + 'dotaccent': 333, + 'dieresis': 333, + 'ring': 333, + 'cedilla': 333, + 'hungarumlaut': 333, + 'ogonek': 333, + 'caron': 333, + 'emdash': 1000, + 'AE': 1000, + 'ordfeminine': 300, + 'Lslash': 667, + 'Oslash': 778, + 'OE': 1000, + 'ordmasculine': 330, + 'ae': 722, + 'dotlessi': 278, + 'lslash': 278, + 'oslash': 500, + 'oe': 722, + 'germandbls': 556, + 'Idieresis': 389, + 'eacute': 444, + 'abreve': 500, + 'uhungarumlaut': 556, + 'ecaron': 444, + 'Ydieresis': 722, + 'divide': 570, + 'Yacute': 722, + 'Acircumflex': 722, + 'aacute': 500, + 'Ucircumflex': 722, + 'yacute': 500, + 'scommaaccent': 389, + 'ecircumflex': 444, + 'Uring': 722, + 'Udieresis': 722, + 'aogonek': 500, + 'Uacute': 722, + 'uogonek': 556, + 'Edieresis': 667, + 'Dcroat': 722, + 'commaaccent': 250, + 'copyright': 747, + 'Emacron': 667, + 'ccaron': 444, + 'aring': 500, + 'Ncommaaccent': 722, + 'lacute': 278, + 'agrave': 500, + 'Tcommaaccent': 667, + 'Cacute': 722, + 'atilde': 500, + 'Edotaccent': 667, + 'scaron': 389, + 'scedilla': 389, + 'iacute': 278, + 'lozenge': 494, + 'Rcaron': 722, + 'Gcommaaccent': 778, + 'ucircumflex': 556, + 'acircumflex': 500, + 'Amacron': 722, + 'rcaron': 444, + 'ccedilla': 444, + 'Zdotaccent': 667, + 'Thorn': 611, + 'Omacron': 778, + 'Racute': 722, + 'Sacute': 556, + 'dcaron': 672, + 'Umacron': 722, + 'uring': 556, + 'threesuperior': 300, + 'Ograve': 778, + 'Agrave': 722, + 'Abreve': 722, + 'multiply': 570, + 'uacute': 556, + 'Tcaron': 667, + 'partialdiff': 494, + 'ydieresis': 500, + 'Nacute': 722, + 'icircumflex': 278, + 'Ecircumflex': 667, + 'adieresis': 500, + 'edieresis': 444, + 'cacute': 444, + 'nacute': 556, + 'umacron': 556, + 'Ncaron': 722, + 'Iacute': 389, + 'plusminus': 570, + 'brokenbar': 220, + 'registered': 747, + 'Gbreve': 778, + 'Idotaccent': 389, + 'summation': 600, + 'Egrave': 667, + 'racute': 444, + 'omacron': 500, + 'Zacute': 667, + 'Zcaron': 667, + 'greaterequal': 549, + 'Eth': 722, + 'Ccedilla': 722, + 'lcommaaccent': 278, + 'tcaron': 416, + 'eogonek': 444, + 'Uogonek': 722, + 'Aacute': 722, + 'Adieresis': 722, + 'egrave': 444, + 'zacute': 444, + 'iogonek': 278, + 'Oacute': 778, + 'oacute': 500, + 'amacron': 500, + 'sacute': 389, + 'idieresis': 278, + 'Ocircumflex': 778, + 'Ugrave': 722, + 'Delta': 612, + 'thorn': 556, + 'twosuperior': 300, + 'Odieresis': 778, + 'mu': 556, + 'igrave': 278, + 'ohungarumlaut': 500, + 'Eogonek': 667, + 'dcroat': 556, + 'threequarters': 750, + 'Scedilla': 556, + 'lcaron': 394, + 'Kcommaaccent': 778, + 'Lacute': 667, + 'trademark': 1000, + 'edotaccent': 444, + 'Igrave': 389, + 'Imacron': 389, + 'Lcaron': 667, + 'onehalf': 750, + 'lessequal': 549, + 'ocircumflex': 500, + 'ntilde': 556, + 'Uhungarumlaut': 722, + 'Eacute': 667, + 'emacron': 444, + 'gbreve': 500, + 'onequarter': 750, + 'Scaron': 556, + 'Scommaaccent': 556, + 'Ohungarumlaut': 778, + 'degree': 400, + 'ograve': 500, + 'Ccaron': 722, + 'ugrave': 556, + 'radical': 549, + 'Dcaron': 722, + 'rcommaaccent': 444, + 'Ntilde': 722, + 'otilde': 500, + 'Rcommaaccent': 722, + 'Lcommaaccent': 667, + 'Atilde': 722, + 'Aogonek': 722, + 'Aring': 722, + 'Otilde': 778, + 'zdotaccent': 444, + 'Ecaron': 667, + 'Iogonek': 389, + 'kcommaaccent': 556, + 'minus': 570, + 'Icircumflex': 389, + 'ncaron': 556, + 'tcommaaccent': 333, + 'logicalnot': 570, + 'odieresis': 500, + 'udieresis': 556, + 'notequal': 549, + 'gcommaaccent': 500, + 'eth': 500, + 'zcaron': 444, + 'ncommaaccent': 556, + 'onesuperior': 300, + 'imacron': 278, + 'Euro': 500 + }, + 'Times-BoldItalic': { + 'space': 250, + 'exclam': 389, + 'quotedbl': 555, + 'numbersign': 500, + 'dollar': 500, + 'percent': 833, + 'ampersand': 778, + 'quoteright': 333, + 'parenleft': 333, + 'parenright': 333, + 'asterisk': 500, + 'plus': 570, + 'comma': 250, + 'hyphen': 333, + 'period': 250, + 'slash': 278, + 'zero': 500, + 'one': 500, + 'two': 500, + 'three': 500, + 'four': 500, + 'five': 500, + 'six': 500, + 'seven': 500, + 'eight': 500, + 'nine': 500, + 'colon': 333, + 'semicolon': 333, + 'less': 570, + 'equal': 570, + 'greater': 570, + 'question': 500, + 'at': 832, + 'A': 667, + 'B': 667, + 'C': 667, + 'D': 722, + 'E': 667, + 'F': 667, + 'G': 722, + 'H': 778, + 'I': 389, + 'J': 500, + 'K': 667, + 'L': 611, + 'M': 889, + 'N': 722, + 'O': 722, + 'P': 611, + 'Q': 722, + 'R': 667, + 'S': 556, + 'T': 611, + 'U': 722, + 'V': 667, + 'W': 889, + 'X': 667, + 'Y': 611, + 'Z': 611, + 'bracketleft': 333, + 'backslash': 278, + 'bracketright': 333, + 'asciicircum': 570, + 'underscore': 500, + 'quoteleft': 333, + 'a': 500, + 'b': 500, + 'c': 444, + 'd': 500, + 'e': 444, + 'f': 333, + 'g': 500, + 'h': 556, + 'i': 278, + 'j': 278, + 'k': 500, + 'l': 278, + 'm': 778, + 'n': 556, + 'o': 500, + 'p': 500, + 'q': 500, + 'r': 389, + 's': 389, + 't': 278, + 'u': 556, + 'v': 444, + 'w': 667, + 'x': 500, + 'y': 444, + 'z': 389, + 'braceleft': 348, + 'bar': 220, + 'braceright': 348, + 'asciitilde': 570, + 'exclamdown': 389, + 'cent': 500, + 'sterling': 500, + 'fraction': 167, + 'yen': 500, + 'florin': 500, + 'section': 500, + 'currency': 500, + 'quotesingle': 278, + 'quotedblleft': 500, + 'guillemotleft': 500, + 'guilsinglleft': 333, + 'guilsinglright': 333, + 'fi': 556, + 'fl': 556, + 'endash': 500, + 'dagger': 500, + 'daggerdbl': 500, + 'periodcentered': 250, + 'paragraph': 500, + 'bullet': 350, + 'quotesinglbase': 333, + 'quotedblbase': 500, + 'quotedblright': 500, + 'guillemotright': 500, + 'ellipsis': 1000, + 'perthousand': 1000, + 'questiondown': 500, + 'grave': 333, + 'acute': 333, + 'circumflex': 333, + 'tilde': 333, + 'macron': 333, + 'breve': 333, + 'dotaccent': 333, + 'dieresis': 333, + 'ring': 333, + 'cedilla': 333, + 'hungarumlaut': 333, + 'ogonek': 333, + 'caron': 333, + 'emdash': 1000, + 'AE': 944, + 'ordfeminine': 266, + 'Lslash': 611, + 'Oslash': 722, + 'OE': 944, + 'ordmasculine': 300, + 'ae': 722, + 'dotlessi': 278, + 'lslash': 278, + 'oslash': 500, + 'oe': 722, + 'germandbls': 500, + 'Idieresis': 389, + 'eacute': 444, + 'abreve': 500, + 'uhungarumlaut': 556, + 'ecaron': 444, + 'Ydieresis': 611, + 'divide': 570, + 'Yacute': 611, + 'Acircumflex': 667, + 'aacute': 500, + 'Ucircumflex': 722, + 'yacute': 444, + 'scommaaccent': 389, + 'ecircumflex': 444, + 'Uring': 722, + 'Udieresis': 722, + 'aogonek': 500, + 'Uacute': 722, + 'uogonek': 556, + 'Edieresis': 667, + 'Dcroat': 722, + 'commaaccent': 250, + 'copyright': 747, + 'Emacron': 667, + 'ccaron': 444, + 'aring': 500, + 'Ncommaaccent': 722, + 'lacute': 278, + 'agrave': 500, + 'Tcommaaccent': 611, + 'Cacute': 667, + 'atilde': 500, + 'Edotaccent': 667, + 'scaron': 389, + 'scedilla': 389, + 'iacute': 278, + 'lozenge': 494, + 'Rcaron': 667, + 'Gcommaaccent': 722, + 'ucircumflex': 556, + 'acircumflex': 500, + 'Amacron': 667, + 'rcaron': 389, + 'ccedilla': 444, + 'Zdotaccent': 611, + 'Thorn': 611, + 'Omacron': 722, + 'Racute': 667, + 'Sacute': 556, + 'dcaron': 608, + 'Umacron': 722, + 'uring': 556, + 'threesuperior': 300, + 'Ograve': 722, + 'Agrave': 667, + 'Abreve': 667, + 'multiply': 570, + 'uacute': 556, + 'Tcaron': 611, + 'partialdiff': 494, + 'ydieresis': 444, + 'Nacute': 722, + 'icircumflex': 278, + 'Ecircumflex': 667, + 'adieresis': 500, + 'edieresis': 444, + 'cacute': 444, + 'nacute': 556, + 'umacron': 556, + 'Ncaron': 722, + 'Iacute': 389, + 'plusminus': 570, + 'brokenbar': 220, + 'registered': 747, + 'Gbreve': 722, + 'Idotaccent': 389, + 'summation': 600, + 'Egrave': 667, + 'racute': 389, + 'omacron': 500, + 'Zacute': 611, + 'Zcaron': 611, + 'greaterequal': 549, + 'Eth': 722, + 'Ccedilla': 667, + 'lcommaaccent': 278, + 'tcaron': 366, + 'eogonek': 444, + 'Uogonek': 722, + 'Aacute': 667, + 'Adieresis': 667, + 'egrave': 444, + 'zacute': 389, + 'iogonek': 278, + 'Oacute': 722, + 'oacute': 500, + 'amacron': 500, + 'sacute': 389, + 'idieresis': 278, + 'Ocircumflex': 722, + 'Ugrave': 722, + 'Delta': 612, + 'thorn': 500, + 'twosuperior': 300, + 'Odieresis': 722, + 'mu': 576, + 'igrave': 278, + 'ohungarumlaut': 500, + 'Eogonek': 667, + 'dcroat': 500, + 'threequarters': 750, + 'Scedilla': 556, + 'lcaron': 382, + 'Kcommaaccent': 667, + 'Lacute': 611, + 'trademark': 1000, + 'edotaccent': 444, + 'Igrave': 389, + 'Imacron': 389, + 'Lcaron': 611, + 'onehalf': 750, + 'lessequal': 549, + 'ocircumflex': 500, + 'ntilde': 556, + 'Uhungarumlaut': 722, + 'Eacute': 667, + 'emacron': 444, + 'gbreve': 500, + 'onequarter': 750, + 'Scaron': 556, + 'Scommaaccent': 556, + 'Ohungarumlaut': 722, + 'degree': 400, + 'ograve': 500, + 'Ccaron': 667, + 'ugrave': 556, + 'radical': 549, + 'Dcaron': 722, + 'rcommaaccent': 389, + 'Ntilde': 722, + 'otilde': 500, + 'Rcommaaccent': 667, + 'Lcommaaccent': 611, + 'Atilde': 667, + 'Aogonek': 667, + 'Aring': 667, + 'Otilde': 722, + 'zdotaccent': 389, + 'Ecaron': 667, + 'Iogonek': 389, + 'kcommaaccent': 500, + 'minus': 606, + 'Icircumflex': 389, + 'ncaron': 556, + 'tcommaaccent': 278, + 'logicalnot': 606, + 'odieresis': 500, + 'udieresis': 556, + 'notequal': 549, + 'gcommaaccent': 500, + 'eth': 500, + 'zcaron': 389, + 'ncommaaccent': 556, + 'onesuperior': 300, + 'imacron': 278, + 'Euro': 500 + }, + 'Times-Italic': { + 'space': 250, + 'exclam': 333, + 'quotedbl': 420, + 'numbersign': 500, + 'dollar': 500, + 'percent': 833, + 'ampersand': 778, + 'quoteright': 333, + 'parenleft': 333, + 'parenright': 333, + 'asterisk': 500, + 'plus': 675, + 'comma': 250, + 'hyphen': 333, + 'period': 250, + 'slash': 278, + 'zero': 500, + 'one': 500, + 'two': 500, + 'three': 500, + 'four': 500, + 'five': 500, + 'six': 500, + 'seven': 500, + 'eight': 500, + 'nine': 500, + 'colon': 333, + 'semicolon': 333, + 'less': 675, + 'equal': 675, + 'greater': 675, + 'question': 500, + 'at': 920, + 'A': 611, + 'B': 611, + 'C': 667, + 'D': 722, + 'E': 611, + 'F': 611, + 'G': 722, + 'H': 722, + 'I': 333, + 'J': 444, + 'K': 667, + 'L': 556, + 'M': 833, + 'N': 667, + 'O': 722, + 'P': 611, + 'Q': 722, + 'R': 611, + 'S': 500, + 'T': 556, + 'U': 722, + 'V': 611, + 'W': 833, + 'X': 611, + 'Y': 556, + 'Z': 556, + 'bracketleft': 389, + 'backslash': 278, + 'bracketright': 389, + 'asciicircum': 422, + 'underscore': 500, + 'quoteleft': 333, + 'a': 500, + 'b': 500, + 'c': 444, + 'd': 500, + 'e': 444, + 'f': 278, + 'g': 500, + 'h': 500, + 'i': 278, + 'j': 278, + 'k': 444, + 'l': 278, + 'm': 722, + 'n': 500, + 'o': 500, + 'p': 500, + 'q': 500, + 'r': 389, + 's': 389, + 't': 278, + 'u': 500, + 'v': 444, + 'w': 667, + 'x': 444, + 'y': 444, + 'z': 389, + 'braceleft': 400, + 'bar': 275, + 'braceright': 400, + 'asciitilde': 541, + 'exclamdown': 389, + 'cent': 500, + 'sterling': 500, + 'fraction': 167, + 'yen': 500, + 'florin': 500, + 'section': 500, + 'currency': 500, + 'quotesingle': 214, + 'quotedblleft': 556, + 'guillemotleft': 500, + 'guilsinglleft': 333, + 'guilsinglright': 333, + 'fi': 500, + 'fl': 500, + 'endash': 500, + 'dagger': 500, + 'daggerdbl': 500, + 'periodcentered': 250, + 'paragraph': 523, + 'bullet': 350, + 'quotesinglbase': 333, + 'quotedblbase': 556, + 'quotedblright': 556, + 'guillemotright': 500, + 'ellipsis': 889, + 'perthousand': 1000, + 'questiondown': 500, + 'grave': 333, + 'acute': 333, + 'circumflex': 333, + 'tilde': 333, + 'macron': 333, + 'breve': 333, + 'dotaccent': 333, + 'dieresis': 333, + 'ring': 333, + 'cedilla': 333, + 'hungarumlaut': 333, + 'ogonek': 333, + 'caron': 333, + 'emdash': 889, + 'AE': 889, + 'ordfeminine': 276, + 'Lslash': 556, + 'Oslash': 722, + 'OE': 944, + 'ordmasculine': 310, + 'ae': 667, + 'dotlessi': 278, + 'lslash': 278, + 'oslash': 500, + 'oe': 667, + 'germandbls': 500, + 'Idieresis': 333, + 'eacute': 444, + 'abreve': 500, + 'uhungarumlaut': 500, + 'ecaron': 444, + 'Ydieresis': 556, + 'divide': 675, + 'Yacute': 556, + 'Acircumflex': 611, + 'aacute': 500, + 'Ucircumflex': 722, + 'yacute': 444, + 'scommaaccent': 389, + 'ecircumflex': 444, + 'Uring': 722, + 'Udieresis': 722, + 'aogonek': 500, + 'Uacute': 722, + 'uogonek': 500, + 'Edieresis': 611, + 'Dcroat': 722, + 'commaaccent': 250, + 'copyright': 760, + 'Emacron': 611, + 'ccaron': 444, + 'aring': 500, + 'Ncommaaccent': 667, + 'lacute': 278, + 'agrave': 500, + 'Tcommaaccent': 556, + 'Cacute': 667, + 'atilde': 500, + 'Edotaccent': 611, + 'scaron': 389, + 'scedilla': 389, + 'iacute': 278, + 'lozenge': 471, + 'Rcaron': 611, + 'Gcommaaccent': 722, + 'ucircumflex': 500, + 'acircumflex': 500, + 'Amacron': 611, + 'rcaron': 389, + 'ccedilla': 444, + 'Zdotaccent': 556, + 'Thorn': 611, + 'Omacron': 722, + 'Racute': 611, + 'Sacute': 500, + 'dcaron': 544, + 'Umacron': 722, + 'uring': 500, + 'threesuperior': 300, + 'Ograve': 722, + 'Agrave': 611, + 'Abreve': 611, + 'multiply': 675, + 'uacute': 500, + 'Tcaron': 556, + 'partialdiff': 476, + 'ydieresis': 444, + 'Nacute': 667, + 'icircumflex': 278, + 'Ecircumflex': 611, + 'adieresis': 500, + 'edieresis': 444, + 'cacute': 444, + 'nacute': 500, + 'umacron': 500, + 'Ncaron': 667, + 'Iacute': 333, + 'plusminus': 675, + 'brokenbar': 275, + 'registered': 760, + 'Gbreve': 722, + 'Idotaccent': 333, + 'summation': 600, + 'Egrave': 611, + 'racute': 389, + 'omacron': 500, + 'Zacute': 556, + 'Zcaron': 556, + 'greaterequal': 549, + 'Eth': 722, + 'Ccedilla': 667, + 'lcommaaccent': 278, + 'tcaron': 300, + 'eogonek': 444, + 'Uogonek': 722, + 'Aacute': 611, + 'Adieresis': 611, + 'egrave': 444, + 'zacute': 389, + 'iogonek': 278, + 'Oacute': 722, + 'oacute': 500, + 'amacron': 500, + 'sacute': 389, + 'idieresis': 278, + 'Ocircumflex': 722, + 'Ugrave': 722, + 'Delta': 612, + 'thorn': 500, + 'twosuperior': 300, + 'Odieresis': 722, + 'mu': 500, + 'igrave': 278, + 'ohungarumlaut': 500, + 'Eogonek': 611, + 'dcroat': 500, + 'threequarters': 750, + 'Scedilla': 500, + 'lcaron': 300, + 'Kcommaaccent': 667, + 'Lacute': 556, + 'trademark': 980, + 'edotaccent': 444, + 'Igrave': 333, + 'Imacron': 333, + 'Lcaron': 611, + 'onehalf': 750, + 'lessequal': 549, + 'ocircumflex': 500, + 'ntilde': 500, + 'Uhungarumlaut': 722, + 'Eacute': 611, + 'emacron': 444, + 'gbreve': 500, + 'onequarter': 750, + 'Scaron': 500, + 'Scommaaccent': 500, + 'Ohungarumlaut': 722, + 'degree': 400, + 'ograve': 500, + 'Ccaron': 667, + 'ugrave': 500, + 'radical': 453, + 'Dcaron': 722, + 'rcommaaccent': 389, + 'Ntilde': 667, + 'otilde': 500, + 'Rcommaaccent': 611, + 'Lcommaaccent': 556, + 'Atilde': 611, + 'Aogonek': 611, + 'Aring': 611, + 'Otilde': 722, + 'zdotaccent': 389, + 'Ecaron': 611, + 'Iogonek': 333, + 'kcommaaccent': 444, + 'minus': 675, + 'Icircumflex': 333, + 'ncaron': 500, + 'tcommaaccent': 278, + 'logicalnot': 675, + 'odieresis': 500, + 'udieresis': 500, + 'notequal': 549, + 'gcommaaccent': 500, + 'eth': 500, + 'zcaron': 389, + 'ncommaaccent': 500, + 'onesuperior': 300, + 'imacron': 278, + 'Euro': 500 + }, + 'ZapfDingbats': { + 'space': 278, + 'a1': 974, + 'a2': 961, + 'a202': 974, + 'a3': 980, + 'a4': 719, + 'a5': 789, + 'a119': 790, + 'a118': 791, + 'a117': 690, + 'a11': 960, + 'a12': 939, + 'a13': 549, + 'a14': 855, + 'a15': 911, + 'a16': 933, + 'a105': 911, + 'a17': 945, + 'a18': 974, + 'a19': 755, + 'a20': 846, + 'a21': 762, + 'a22': 761, + 'a23': 571, + 'a24': 677, + 'a25': 763, + 'a26': 760, + 'a27': 759, + 'a28': 754, + 'a6': 494, + 'a7': 552, + 'a8': 537, + 'a9': 577, + 'a10': 692, + 'a29': 786, + 'a30': 788, + 'a31': 788, + 'a32': 790, + 'a33': 793, + 'a34': 794, + 'a35': 816, + 'a36': 823, + 'a37': 789, + 'a38': 841, + 'a39': 823, + 'a40': 833, + 'a41': 816, + 'a42': 831, + 'a43': 923, + 'a44': 744, + 'a45': 723, + 'a46': 749, + 'a47': 790, + 'a48': 792, + 'a49': 695, + 'a50': 776, + 'a51': 768, + 'a52': 792, + 'a53': 759, + 'a54': 707, + 'a55': 708, + 'a56': 682, + 'a57': 701, + 'a58': 826, + 'a59': 815, + 'a60': 789, + 'a61': 789, + 'a62': 707, + 'a63': 687, + 'a64': 696, + 'a65': 689, + 'a66': 786, + 'a67': 787, + 'a68': 713, + 'a69': 791, + 'a70': 785, + 'a71': 791, + 'a72': 873, + 'a73': 761, + 'a74': 762, + 'a203': 762, + 'a75': 759, + 'a204': 759, + 'a76': 892, + 'a77': 892, + 'a78': 788, + 'a79': 784, + 'a81': 438, + 'a82': 138, + 'a83': 277, + 'a84': 415, + 'a97': 392, + 'a98': 392, + 'a99': 668, + 'a100': 668, + 'a89': 390, + 'a90': 390, + 'a93': 317, + 'a94': 317, + 'a91': 276, + 'a92': 276, + 'a205': 509, + 'a85': 509, + 'a206': 410, + 'a86': 410, + 'a87': 234, + 'a88': 234, + 'a95': 334, + 'a96': 334, + 'a101': 732, + 'a102': 544, + 'a103': 544, + 'a104': 910, + 'a106': 667, + 'a107': 760, + 'a108': 760, + 'a112': 776, + 'a111': 595, + 'a110': 694, + 'a109': 626, + 'a120': 788, + 'a121': 788, + 'a122': 788, + 'a123': 788, + 'a124': 788, + 'a125': 788, + 'a126': 788, + 'a127': 788, + 'a128': 788, + 'a129': 788, + 'a130': 788, + 'a131': 788, + 'a132': 788, + 'a133': 788, + 'a134': 788, + 'a135': 788, + 'a136': 788, + 'a137': 788, + 'a138': 788, + 'a139': 788, + 'a140': 788, + 'a141': 788, + 'a142': 788, + 'a143': 788, + 'a144': 788, + 'a145': 788, + 'a146': 788, + 'a147': 788, + 'a148': 788, + 'a149': 788, + 'a150': 788, + 'a151': 788, + 'a152': 788, + 'a153': 788, + 'a154': 788, + 'a155': 788, + 'a156': 788, + 'a157': 788, + 'a158': 788, + 'a159': 788, + 'a160': 894, + 'a161': 838, + 'a163': 1016, + 'a164': 458, + 'a196': 748, + 'a165': 924, + 'a192': 748, + 'a166': 918, + 'a167': 927, + 'a168': 928, + 'a169': 928, + 'a170': 834, + 'a171': 873, + 'a172': 828, + 'a173': 924, + 'a162': 924, + 'a174': 917, + 'a175': 930, + 'a176': 931, + 'a177': 463, + 'a178': 883, + 'a179': 836, + 'a193': 836, + 'a180': 867, + 'a199': 867, + 'a181': 696, + 'a200': 696, + 'a182': 874, + 'a201': 874, + 'a183': 760, + 'a184': 946, + 'a197': 771, + 'a185': 865, + 'a194': 771, + 'a198': 888, + 'a186': 967, + 'a195': 888, + 'a187': 831, + 'a188': 873, + 'a189': 927, + 'a190': 970, + 'a191': 918 + } +}; + +exports.Metrics = Metrics; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreBidi = {}), root.pdfjsSharedGlobal); + } +}(this, function (exports, sharedGlobal) { + +var PDFJS = sharedGlobal.PDFJS; + +var bidi = PDFJS.bidi = (function bidiClosure() { + // Character types for symbols from 0000 to 00FF. + var baseTypes = [ + 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'S', 'B', 'S', 'WS', + 'B', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', + 'BN', 'BN', 'B', 'B', 'B', 'S', 'WS', 'ON', 'ON', 'ET', 'ET', 'ET', 'ON', + 'ON', 'ON', 'ON', 'ON', 'ON', 'CS', 'ON', 'CS', 'ON', 'EN', 'EN', 'EN', + 'EN', 'EN', 'EN', 'EN', 'EN', 'EN', 'EN', 'ON', 'ON', 'ON', 'ON', 'ON', + 'ON', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', + 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'ON', 'ON', + 'ON', 'ON', 'ON', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', + 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', + 'L', 'ON', 'ON', 'ON', 'ON', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'B', 'BN', + 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', + 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', + 'BN', 'CS', 'ON', 'ET', 'ET', 'ET', 'ET', 'ON', 'ON', 'ON', 'ON', 'L', 'ON', + 'ON', 'ON', 'ON', 'ON', 'ET', 'ET', 'EN', 'EN', 'ON', 'L', 'ON', 'ON', 'ON', + 'EN', 'L', 'ON', 'ON', 'ON', 'ON', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', + 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', + 'L', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', + 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', + 'L', 'L', 'L', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L' + ]; + + // Character types for symbols from 0600 to 06FF + var arabicTypes = [ + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'CS', 'AL', 'ON', 'ON', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', + 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN', + 'AN', 'ET', 'AN', 'AN', 'AL', 'AL', 'AL', 'NSM', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', + 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'ON', 'NSM', + 'NSM', 'NSM', 'NSM', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', + 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL' + ]; + + function isOdd(i) { + return (i & 1) !== 0; + } + + function isEven(i) { + return (i & 1) === 0; + } + + function findUnequal(arr, start, value) { + for (var j = start, jj = arr.length; j < jj; ++j) { + if (arr[j] !== value) { + return j; + } + } + return j; + } + + function setValues(arr, start, end, value) { + for (var j = start; j < end; ++j) { + arr[j] = value; + } + } + + function reverseValues(arr, start, end) { + for (var i = start, j = end - 1; i < j; ++i, --j) { + var temp = arr[i]; + arr[i] = arr[j]; + arr[j] = temp; + } + } + + function createBidiText(str, isLTR, vertical) { + return { + str: str, + dir: (vertical ? 'ttb' : (isLTR ? 'ltr' : 'rtl')) + }; + } + + // These are used in bidi(), which is called frequently. We re-use them on + // each call to avoid unnecessary allocations. + var chars = []; + var types = []; + + function bidi(str, startLevel, vertical) { + var isLTR = true; + var strLength = str.length; + if (strLength === 0 || vertical) { + return createBidiText(str, isLTR, vertical); + } + + // Get types and fill arrays + chars.length = strLength; + types.length = strLength; + var numBidi = 0; + + var i, ii; + for (i = 0; i < strLength; ++i) { + chars[i] = str.charAt(i); + + var charCode = str.charCodeAt(i); + var charType = 'L'; + if (charCode <= 0x00ff) { + charType = baseTypes[charCode]; + } else if (0x0590 <= charCode && charCode <= 0x05f4) { + charType = 'R'; + } else if (0x0600 <= charCode && charCode <= 0x06ff) { + charType = arabicTypes[charCode & 0xff]; + } else if (0x0700 <= charCode && charCode <= 0x08AC) { + charType = 'AL'; + } + if (charType === 'R' || charType === 'AL' || charType === 'AN') { + numBidi++; + } + types[i] = charType; + } + + // Detect the bidi method + // - If there are no rtl characters then no bidi needed + // - If less than 30% chars are rtl then string is primarily ltr + // - If more than 30% chars are rtl then string is primarily rtl + if (numBidi === 0) { + isLTR = true; + return createBidiText(str, isLTR); + } + + if (startLevel === -1) { + if ((strLength / numBidi) < 0.3) { + isLTR = true; + startLevel = 0; + } else { + isLTR = false; + startLevel = 1; + } + } + + var levels = []; + for (i = 0; i < strLength; ++i) { + levels[i] = startLevel; + } + + /* + X1-X10: skip most of this, since we are NOT doing the embeddings. + */ + var e = (isOdd(startLevel) ? 'R' : 'L'); + var sor = e; + var eor = sor; + + /* + W1. Examine each non-spacing mark (NSM) in the level run, and change the + type of the NSM to the type of the previous character. If the NSM is at the + start of the level run, it will get the type of sor. + */ + var lastType = sor; + for (i = 0; i < strLength; ++i) { + if (types[i] === 'NSM') { + types[i] = lastType; + } else { + lastType = types[i]; + } + } + + /* + W2. Search backwards from each instance of a European number until the + first strong type (R, L, AL, or sor) is found. If an AL is found, change + the type of the European number to Arabic number. + */ + lastType = sor; + var t; + for (i = 0; i < strLength; ++i) { + t = types[i]; + if (t === 'EN') { + types[i] = (lastType === 'AL') ? 'AN' : 'EN'; + } else if (t === 'R' || t === 'L' || t === 'AL') { + lastType = t; + } + } + + /* + W3. Change all ALs to R. + */ + for (i = 0; i < strLength; ++i) { + t = types[i]; + if (t === 'AL') { + types[i] = 'R'; + } + } + + /* + W4. A single European separator between two European numbers changes to a + European number. A single common separator between two numbers of the same + type changes to that type: + */ + for (i = 1; i < strLength - 1; ++i) { + if (types[i] === 'ES' && types[i - 1] === 'EN' && types[i + 1] === 'EN') { + types[i] = 'EN'; + } + if (types[i] === 'CS' && + (types[i - 1] === 'EN' || types[i - 1] === 'AN') && + types[i + 1] === types[i - 1]) { + types[i] = types[i - 1]; + } + } + + /* + W5. A sequence of European terminators adjacent to European numbers changes + to all European numbers: + */ + for (i = 0; i < strLength; ++i) { + if (types[i] === 'EN') { + // do before + var j; + for (j = i - 1; j >= 0; --j) { + if (types[j] !== 'ET') { + break; + } + types[j] = 'EN'; + } + // do after + for (j = i + 1; j < strLength; --j) { + if (types[j] !== 'ET') { + break; + } + types[j] = 'EN'; + } + } + } + + /* + W6. Otherwise, separators and terminators change to Other Neutral: + */ + for (i = 0; i < strLength; ++i) { + t = types[i]; + if (t === 'WS' || t === 'ES' || t === 'ET' || t === 'CS') { + types[i] = 'ON'; + } + } + + /* + W7. Search backwards from each instance of a European number until the + first strong type (R, L, or sor) is found. If an L is found, then change + the type of the European number to L. + */ + lastType = sor; + for (i = 0; i < strLength; ++i) { + t = types[i]; + if (t === 'EN') { + types[i] = ((lastType === 'L') ? 'L' : 'EN'); + } else if (t === 'R' || t === 'L') { + lastType = t; + } + } + + /* + N1. A sequence of neutrals takes the direction of the surrounding strong + text if the text on both sides has the same direction. European and Arabic + numbers are treated as though they were R. Start-of-level-run (sor) and + end-of-level-run (eor) are used at level run boundaries. + */ + for (i = 0; i < strLength; ++i) { + if (types[i] === 'ON') { + var end = findUnequal(types, i + 1, 'ON'); + var before = sor; + if (i > 0) { + before = types[i - 1]; + } + + var after = eor; + if (end + 1 < strLength) { + after = types[end + 1]; + } + if (before !== 'L') { + before = 'R'; + } + if (after !== 'L') { + after = 'R'; + } + if (before === after) { + setValues(types, i, end, before); + } + i = end - 1; // reset to end (-1 so next iteration is ok) + } + } + + /* + N2. Any remaining neutrals take the embedding direction. + */ + for (i = 0; i < strLength; ++i) { + if (types[i] === 'ON') { + types[i] = e; + } + } + + /* + I1. For all characters with an even (left-to-right) embedding direction, + those of type R go up one level and those of type AN or EN go up two + levels. + I2. For all characters with an odd (right-to-left) embedding direction, + those of type L, EN or AN go up one level. + */ + for (i = 0; i < strLength; ++i) { + t = types[i]; + if (isEven(levels[i])) { + if (t === 'R') { + levels[i] += 1; + } else if (t === 'AN' || t === 'EN') { + levels[i] += 2; + } + } else { // isOdd + if (t === 'L' || t === 'AN' || t === 'EN') { + levels[i] += 1; + } + } + } + + /* + L1. On each line, reset the embedding level of the following characters to + the paragraph embedding level: + + segment separators, + paragraph separators, + any sequence of whitespace characters preceding a segment separator or + paragraph separator, and any sequence of white space characters at the end + of the line. + */ + + // don't bother as text is only single line + + /* + L2. From the highest level found in the text to the lowest odd level on + each line, reverse any contiguous sequence of characters that are at that + level or higher. + */ + + // find highest level & lowest odd level + var highestLevel = -1; + var lowestOddLevel = 99; + var level; + for (i = 0, ii = levels.length; i < ii; ++i) { + level = levels[i]; + if (highestLevel < level) { + highestLevel = level; + } + if (lowestOddLevel > level && isOdd(level)) { + lowestOddLevel = level; + } + } + + // now reverse between those limits + for (level = highestLevel; level >= lowestOddLevel; --level) { + // find segments to reverse + var start = -1; + for (i = 0, ii = levels.length; i < ii; ++i) { + if (levels[i] < level) { + if (start >= 0) { + reverseValues(chars, start, i); + start = -1; + } + } else if (start < 0) { + start = i; + } + } + if (start >= 0) { + reverseValues(chars, start, levels.length); + } + } + + /* + L3. Combining marks applied to a right-to-left base character will at this + point precede their base character. If the rendering engine expects them to + follow the base characters in the final display process, then the ordering + of the marks and the base character must be reversed. + */ + + // don't bother for now + + /* + L4. A character that possesses the mirrored property as specified by + Section 4.7, Mirrored, must be depicted by a mirrored glyph if the resolved + directionality of that character is R. + */ + + // don't mirror as characters are already mirrored in the pdf + + // Finally, return string + for (i = 0, ii = chars.length; i < ii; ++i) { + var ch = chars[i]; + if (ch === '<' || ch === '>') { + chars[i] = ''; + } + } + return createBidiText(chars.join(''), isLTR); + } + + return bidi; +})(); + +exports.bidi = bidi; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreChunkedStream = {}), root.pdfjsSharedUtil); + } +}(this, function (exports, sharedUtil) { + +var MissingDataException = sharedUtil.MissingDataException; +var assert = sharedUtil.assert; +var createPromiseCapability = sharedUtil.createPromiseCapability; +var isInt = sharedUtil.isInt; +var isEmptyObj = sharedUtil.isEmptyObj; var ChunkedStream = (function ChunkedStreamClosure() { function ChunkedStream(length, chunkSize, manager) { @@ -1858,730 +11051,3463 @@ var ChunkedStreamManager = (function ChunkedStreamManagerClosure() { return ChunkedStreamManager; })(); +exports.ChunkedStream = ChunkedStream; +exports.ChunkedStreamManager = ChunkedStreamManager; +})); -var BasePdfManager = (function BasePdfManagerClosure() { - function BasePdfManager() { - throw new Error('Cannot initialize BaseManagerManager'); + +(function (root, factory) { + { + factory((root.pdfjsCoreJbig2 = {}), root.pdfjsSharedUtil, + root.pdfjsCoreArithmeticDecoder); } +}(this, function (exports, sharedUtil, coreArithmeticDecoder) { - BasePdfManager.prototype = { - get docId() { - return this._docId; - }, +var error = sharedUtil.error; +var log2 = sharedUtil.log2; +var readInt8 = sharedUtil.readInt8; +var readUint16 = sharedUtil.readUint16; +var readUint32 = sharedUtil.readUint32; +var shadow = sharedUtil.shadow; +var ArithmeticDecoder = coreArithmeticDecoder.ArithmeticDecoder; - onLoadedStream: function BasePdfManager_onLoadedStream() { - throw new NotImplementedException(); - }, +var Jbig2Image = (function Jbig2ImageClosure() { + // Utility data structures + function ContextCache() {} - ensureDoc: function BasePdfManager_ensureDoc(prop, args) { - return this.ensure(this.pdfDocument, prop, args); - }, - - ensureXRef: function BasePdfManager_ensureXRef(prop, args) { - return this.ensure(this.pdfDocument.xref, prop, args); - }, - - ensureCatalog: function BasePdfManager_ensureCatalog(prop, args) { - return this.ensure(this.pdfDocument.catalog, prop, args); - }, - - getPage: function BasePdfManager_getPage(pageIndex) { - return this.pdfDocument.getPage(pageIndex); - }, - - cleanup: function BasePdfManager_cleanup() { - return this.pdfDocument.cleanup(); - }, - - ensure: function BasePdfManager_ensure(obj, prop, args) { - return new NotImplementedException(); - }, - - requestRange: function BasePdfManager_requestRange(begin, end) { - return new NotImplementedException(); - }, - - requestLoadedStream: function BasePdfManager_requestLoadedStream() { - return new NotImplementedException(); - }, - - sendProgressiveData: function BasePdfManager_sendProgressiveData(chunk) { - return new NotImplementedException(); - }, - - updatePassword: function BasePdfManager_updatePassword(password) { - this.pdfDocument.xref.password = this.password = password; - if (this._passwordChangedCapability) { - this._passwordChangedCapability.resolve(); + ContextCache.prototype = { + getContexts: function(id) { + if (id in this) { + return this[id]; } - }, - - passwordChanged: function BasePdfManager_passwordChanged() { - this._passwordChangedCapability = createPromiseCapability(); - return this._passwordChangedCapability.promise; - }, - - terminate: function BasePdfManager_terminate() { - return new NotImplementedException(); + return (this[id] = new Int8Array(1 << 16)); } }; - return BasePdfManager; -})(); - -var LocalPdfManager = (function LocalPdfManagerClosure() { - function LocalPdfManager(docId, data, password) { - this._docId = docId; - var stream = new Stream(data); - this.pdfDocument = new PDFDocument(this, stream, password); - this._loadedStreamCapability = createPromiseCapability(); - this._loadedStreamCapability.resolve(stream); + function DecodingContext(data, start, end) { + this.data = data; + this.start = start; + this.end = end; } - Util.inherit(LocalPdfManager, BasePdfManager, { - ensure: function LocalPdfManager_ensure(obj, prop, args) { - return new Promise(function (resolve, reject) { - try { - var value = obj[prop]; - var result; - if (typeof value === 'function') { - result = value.apply(obj, args); + DecodingContext.prototype = { + get decoder() { + var decoder = new ArithmeticDecoder(this.data, this.start, this.end); + return shadow(this, 'decoder', decoder); + }, + get contextCache() { + var cache = new ContextCache(); + return shadow(this, 'contextCache', cache); + } + }; + + // Annex A. Arithmetic Integer Decoding Procedure + // A.2 Procedure for decoding values + function decodeInteger(contextCache, procedure, decoder) { + var contexts = contextCache.getContexts(procedure); + var prev = 1; + + function readBits(length) { + var v = 0; + for (var i = 0; i < length; i++) { + var bit = decoder.readBit(contexts, prev); + prev = (prev < 256 ? (prev << 1) | bit : + (((prev << 1) | bit) & 511) | 256); + v = (v << 1) | bit; + } + return v >>> 0; + } + + var sign = readBits(1); + var value = readBits(1) ? + (readBits(1) ? + (readBits(1) ? + (readBits(1) ? + (readBits(1) ? + (readBits(32) + 4436) : + readBits(12) + 340) : + readBits(8) + 84) : + readBits(6) + 20) : + readBits(4) + 4) : + readBits(2); + return (sign === 0 ? value : (value > 0 ? -value : null)); + } + + // A.3 The IAID decoding procedure + function decodeIAID(contextCache, decoder, codeLength) { + var contexts = contextCache.getContexts('IAID'); + + var prev = 1; + for (var i = 0; i < codeLength; i++) { + var bit = decoder.readBit(contexts, prev); + prev = (prev << 1) | bit; + } + if (codeLength < 31) { + return prev & ((1 << codeLength) - 1); + } + return prev & 0x7FFFFFFF; + } + + // 7.3 Segment types + var SegmentTypes = [ + 'SymbolDictionary', null, null, null, 'IntermediateTextRegion', null, + 'ImmediateTextRegion', 'ImmediateLosslessTextRegion', null, null, null, + null, null, null, null, null, 'patternDictionary', null, null, null, + 'IntermediateHalftoneRegion', null, 'ImmediateHalftoneRegion', + 'ImmediateLosslessHalftoneRegion', null, null, null, null, null, null, null, + null, null, null, null, null, 'IntermediateGenericRegion', null, + 'ImmediateGenericRegion', 'ImmediateLosslessGenericRegion', + 'IntermediateGenericRefinementRegion', null, + 'ImmediateGenericRefinementRegion', + 'ImmediateLosslessGenericRefinementRegion', null, null, null, null, + 'PageInformation', 'EndOfPage', 'EndOfStripe', 'EndOfFile', 'Profiles', + 'Tables', null, null, null, null, null, null, null, null, + 'Extension' + ]; + + var CodingTemplates = [ + [{x: -1, y: -2}, {x: 0, y: -2}, {x: 1, y: -2}, {x: -2, y: -1}, + {x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1}, {x: 2, y: -1}, + {x: -4, y: 0}, {x: -3, y: 0}, {x: -2, y: 0}, {x: -1, y: 0}], + [{x: -1, y: -2}, {x: 0, y: -2}, {x: 1, y: -2}, {x: 2, y: -2}, + {x: -2, y: -1}, {x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1}, + {x: 2, y: -1}, {x: -3, y: 0}, {x: -2, y: 0}, {x: -1, y: 0}], + [{x: -1, y: -2}, {x: 0, y: -2}, {x: 1, y: -2}, {x: -2, y: -1}, + {x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1}, {x: -2, y: 0}, + {x: -1, y: 0}], + [{x: -3, y: -1}, {x: -2, y: -1}, {x: -1, y: -1}, {x: 0, y: -1}, + {x: 1, y: -1}, {x: -4, y: 0}, {x: -3, y: 0}, {x: -2, y: 0}, {x: -1, y: 0}] + ]; + + var RefinementTemplates = [ + { + coding: [{x: 0, y: -1}, {x: 1, y: -1}, {x: -1, y: 0}], + reference: [{x: 0, y: -1}, {x: 1, y: -1}, {x: -1, y: 0}, {x: 0, y: 0}, + {x: 1, y: 0}, {x: -1, y: 1}, {x: 0, y: 1}, {x: 1, y: 1}] + }, + { + coding: [{x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1}, {x: -1, y: 0}], + reference: [{x: 0, y: -1}, {x: -1, y: 0}, {x: 0, y: 0}, {x: 1, y: 0}, + {x: 0, y: 1}, {x: 1, y: 1}] + } + ]; + + // See 6.2.5.7 Decoding the bitmap. + var ReusedContexts = [ + 0x9B25, // 10011 0110010 0101 + 0x0795, // 0011 110010 101 + 0x00E5, // 001 11001 01 + 0x0195 // 011001 0101 + ]; + + var RefinementReusedContexts = [ + 0x0020, // '000' + '0' (coding) + '00010000' + '0' (reference) + 0x0008 // '0000' + '001000' + ]; + + function decodeBitmapTemplate0(width, height, decodingContext) { + var decoder = decodingContext.decoder; + var contexts = decodingContext.contextCache.getContexts('GB'); + var contextLabel, i, j, pixel, row, row1, row2, bitmap = []; + + // ...ooooo.... + // ..ooooooo... Context template for current pixel (X) + // .ooooX...... (concatenate values of 'o'-pixels to get contextLabel) + var OLD_PIXEL_MASK = 0x7BF7; // 01111 0111111 0111 + + for (i = 0; i < height; i++) { + row = bitmap[i] = new Uint8Array(width); + row1 = (i < 1) ? row : bitmap[i - 1]; + row2 = (i < 2) ? row : bitmap[i - 2]; + + // At the beginning of each row: + // Fill contextLabel with pixels that are above/right of (X) + contextLabel = (row2[0] << 13) | (row2[1] << 12) | (row2[2] << 11) | + (row1[0] << 7) | (row1[1] << 6) | (row1[2] << 5) | + (row1[3] << 4); + + for (j = 0; j < width; j++) { + row[j] = pixel = decoder.readBit(contexts, contextLabel); + + // At each pixel: Clear contextLabel pixels that are shifted + // out of the context, then add new ones. + contextLabel = ((contextLabel & OLD_PIXEL_MASK) << 1) | + (j + 3 < width ? row2[j + 3] << 11 : 0) | + (j + 4 < width ? row1[j + 4] << 4 : 0) | pixel; + } + } + + return bitmap; + } + + // 6.2 Generic Region Decoding Procedure + function decodeBitmap(mmr, width, height, templateIndex, prediction, skip, at, + decodingContext) { + if (mmr) { + error('JBIG2 error: MMR encoding is not supported'); + } + + // Use optimized version for the most common case + if (templateIndex === 0 && !skip && !prediction && at.length === 4 && + at[0].x === 3 && at[0].y === -1 && at[1].x === -3 && at[1].y === -1 && + at[2].x === 2 && at[2].y === -2 && at[3].x === -2 && at[3].y === -2) { + return decodeBitmapTemplate0(width, height, decodingContext); + } + + var useskip = !!skip; + var template = CodingTemplates[templateIndex].concat(at); + + // Sorting is non-standard, and it is not required. But sorting increases + // the number of template bits that can be reused from the previous + // contextLabel in the main loop. + template.sort(function (a, b) { + return (a.y - b.y) || (a.x - b.x); + }); + + var templateLength = template.length; + var templateX = new Int8Array(templateLength); + var templateY = new Int8Array(templateLength); + var changingTemplateEntries = []; + var reuseMask = 0, minX = 0, maxX = 0, minY = 0; + var c, k; + + for (k = 0; k < templateLength; k++) { + templateX[k] = template[k].x; + templateY[k] = template[k].y; + minX = Math.min(minX, template[k].x); + maxX = Math.max(maxX, template[k].x); + minY = Math.min(minY, template[k].y); + // Check if the template pixel appears in two consecutive context labels, + // so it can be reused. Otherwise, we add it to the list of changing + // template entries. + if (k < templateLength - 1 && + template[k].y === template[k + 1].y && + template[k].x === template[k + 1].x - 1) { + reuseMask |= 1 << (templateLength - 1 - k); + } else { + changingTemplateEntries.push(k); + } + } + var changingEntriesLength = changingTemplateEntries.length; + + var changingTemplateX = new Int8Array(changingEntriesLength); + var changingTemplateY = new Int8Array(changingEntriesLength); + var changingTemplateBit = new Uint16Array(changingEntriesLength); + for (c = 0; c < changingEntriesLength; c++) { + k = changingTemplateEntries[c]; + changingTemplateX[c] = template[k].x; + changingTemplateY[c] = template[k].y; + changingTemplateBit[c] = 1 << (templateLength - 1 - k); + } + + // Get the safe bounding box edges from the width, height, minX, maxX, minY + var sbb_left = -minX; + var sbb_top = -minY; + var sbb_right = width - maxX; + + var pseudoPixelContext = ReusedContexts[templateIndex]; + var row = new Uint8Array(width); + var bitmap = []; + + var decoder = decodingContext.decoder; + var contexts = decodingContext.contextCache.getContexts('GB'); + + var ltp = 0, j, i0, j0, contextLabel = 0, bit, shift; + for (var i = 0; i < height; i++) { + if (prediction) { + var sltp = decoder.readBit(contexts, pseudoPixelContext); + ltp ^= sltp; + if (ltp) { + bitmap.push(row); // duplicate previous row + continue; + } + } + row = new Uint8Array(row); + bitmap.push(row); + for (j = 0; j < width; j++) { + if (useskip && skip[i][j]) { + row[j] = 0; + continue; + } + // Are we in the middle of a scanline, so we can reuse contextLabel + // bits? + if (j >= sbb_left && j < sbb_right && i >= sbb_top) { + // If yes, we can just shift the bits that are reusable and only + // fetch the remaining ones. + contextLabel = (contextLabel << 1) & reuseMask; + for (k = 0; k < changingEntriesLength; k++) { + i0 = i + changingTemplateY[k]; + j0 = j + changingTemplateX[k]; + bit = bitmap[i0][j0]; + if (bit) { + bit = changingTemplateBit[k]; + contextLabel |= bit; + } + } + } else { + // compute the contextLabel from scratch + contextLabel = 0; + shift = templateLength - 1; + for (k = 0; k < templateLength; k++, shift--) { + j0 = j + templateX[k]; + if (j0 >= 0 && j0 < width) { + i0 = i + templateY[k]; + if (i0 >= 0) { + bit = bitmap[i0][j0]; + if (bit) { + contextLabel |= bit << shift; + } + } + } + } + } + var pixel = decoder.readBit(contexts, contextLabel); + row[j] = pixel; + } + } + return bitmap; + } + + // 6.3.2 Generic Refinement Region Decoding Procedure + function decodeRefinement(width, height, templateIndex, referenceBitmap, + offsetX, offsetY, prediction, at, + decodingContext) { + var codingTemplate = RefinementTemplates[templateIndex].coding; + if (templateIndex === 0) { + codingTemplate = codingTemplate.concat([at[0]]); + } + var codingTemplateLength = codingTemplate.length; + var codingTemplateX = new Int32Array(codingTemplateLength); + var codingTemplateY = new Int32Array(codingTemplateLength); + var k; + for (k = 0; k < codingTemplateLength; k++) { + codingTemplateX[k] = codingTemplate[k].x; + codingTemplateY[k] = codingTemplate[k].y; + } + + var referenceTemplate = RefinementTemplates[templateIndex].reference; + if (templateIndex === 0) { + referenceTemplate = referenceTemplate.concat([at[1]]); + } + var referenceTemplateLength = referenceTemplate.length; + var referenceTemplateX = new Int32Array(referenceTemplateLength); + var referenceTemplateY = new Int32Array(referenceTemplateLength); + for (k = 0; k < referenceTemplateLength; k++) { + referenceTemplateX[k] = referenceTemplate[k].x; + referenceTemplateY[k] = referenceTemplate[k].y; + } + var referenceWidth = referenceBitmap[0].length; + var referenceHeight = referenceBitmap.length; + + var pseudoPixelContext = RefinementReusedContexts[templateIndex]; + var bitmap = []; + + var decoder = decodingContext.decoder; + var contexts = decodingContext.contextCache.getContexts('GR'); + + var ltp = 0; + for (var i = 0; i < height; i++) { + if (prediction) { + var sltp = decoder.readBit(contexts, pseudoPixelContext); + ltp ^= sltp; + if (ltp) { + error('JBIG2 error: prediction is not supported'); + } + } + var row = new Uint8Array(width); + bitmap.push(row); + for (var j = 0; j < width; j++) { + var i0, j0; + var contextLabel = 0; + for (k = 0; k < codingTemplateLength; k++) { + i0 = i + codingTemplateY[k]; + j0 = j + codingTemplateX[k]; + if (i0 < 0 || j0 < 0 || j0 >= width) { + contextLabel <<= 1; // out of bound pixel } else { - result = value; + contextLabel = (contextLabel << 1) | bitmap[i0][j0]; } - resolve(result); - } catch (e) { - reject(e); } - }); - }, - - requestRange: function LocalPdfManager_requestRange(begin, end) { - return Promise.resolve(); - }, - - requestLoadedStream: function LocalPdfManager_requestLoadedStream() { - return; - }, - - onLoadedStream: function LocalPdfManager_onLoadedStream() { - return this._loadedStreamCapability.promise; - }, - - terminate: function LocalPdfManager_terminate() { - return; + for (k = 0; k < referenceTemplateLength; k++) { + i0 = i + referenceTemplateY[k] + offsetY; + j0 = j + referenceTemplateX[k] + offsetX; + if (i0 < 0 || i0 >= referenceHeight || j0 < 0 || + j0 >= referenceWidth) { + contextLabel <<= 1; // out of bound pixel + } else { + contextLabel = (contextLabel << 1) | referenceBitmap[i0][j0]; + } + } + var pixel = decoder.readBit(contexts, contextLabel); + row[j] = pixel; + } } - }); - return LocalPdfManager; -})(); - -var NetworkPdfManager = (function NetworkPdfManagerClosure() { - function NetworkPdfManager(docId, args, msgHandler) { - this._docId = docId; - this.msgHandler = msgHandler; - - var params = { - msgHandler: msgHandler, - httpHeaders: args.httpHeaders, - withCredentials: args.withCredentials, - chunkedViewerLoading: args.chunkedViewerLoading, - disableAutoFetch: args.disableAutoFetch, - initialData: args.initialData - }; - this.streamManager = new ChunkedStreamManager(args.length, - args.rangeChunkSize, - args.url, params); - this.pdfDocument = new PDFDocument(this, this.streamManager.getStream(), - args.password); + return bitmap; } - Util.inherit(NetworkPdfManager, BasePdfManager, { - ensure: function NetworkPdfManager_ensure(obj, prop, args) { - var pdfManager = this; - - return new Promise(function (resolve, reject) { - function ensureHelper() { - try { - var result; - var value = obj[prop]; - if (typeof value === 'function') { - result = value.apply(obj, args); - } else { - result = value; - } - resolve(result); - } catch(e) { - if (!(e instanceof MissingDataException)) { - reject(e); - return; - } - pdfManager.streamManager.requestRange(e.begin, e.end). - then(ensureHelper, reject); - } - } - - ensureHelper(); - }); - }, - - requestRange: function NetworkPdfManager_requestRange(begin, end) { - return this.streamManager.requestRange(begin, end); - }, - - requestLoadedStream: function NetworkPdfManager_requestLoadedStream() { - this.streamManager.requestAllChunks(); - }, - - sendProgressiveData: - function NetworkPdfManager_sendProgressiveData(chunk) { - this.streamManager.onReceiveData({ chunk: chunk }); - }, - - onLoadedStream: function NetworkPdfManager_onLoadedStream() { - return this.streamManager.onLoadedStream(); - }, - - terminate: function NetworkPdfManager_terminate() { - this.streamManager.abort(); + // 6.5.5 Decoding the symbol dictionary + function decodeSymbolDictionary(huffman, refinement, symbols, + numberOfNewSymbols, numberOfExportedSymbols, + huffmanTables, templateIndex, at, + refinementTemplateIndex, refinementAt, + decodingContext) { + if (huffman) { + error('JBIG2 error: huffman is not supported'); } - }); - return NetworkPdfManager; -})(); + var newSymbols = []; + var currentHeight = 0; + var symbolCodeLength = log2(symbols.length + numberOfNewSymbols); + var decoder = decodingContext.decoder; + var contextCache = decodingContext.contextCache; -var Page = (function PageClosure() { - - var LETTER_SIZE_MEDIABOX = [0, 0, 612, 792]; - - function Page(pdfManager, xref, pageIndex, pageDict, ref, fontCache) { - this.pdfManager = pdfManager; - this.pageIndex = pageIndex; - this.pageDict = pageDict; - this.xref = xref; - this.ref = ref; - this.fontCache = fontCache; - this.idCounters = { - obj: 0 - }; - this.resourcesPromise = null; + while (newSymbols.length < numberOfNewSymbols) { + var deltaHeight = decodeInteger(contextCache, 'IADH', decoder); // 6.5.6 + currentHeight += deltaHeight; + var currentWidth = 0; + var totalWidth = 0; + while (true) { + var deltaWidth = decodeInteger(contextCache, 'IADW', decoder); // 6.5.7 + if (deltaWidth === null) { + break; // OOB + } + currentWidth += deltaWidth; + totalWidth += currentWidth; + var bitmap; + if (refinement) { + // 6.5.8.2 Refinement/aggregate-coded symbol bitmap + var numberOfInstances = decodeInteger(contextCache, 'IAAI', decoder); + if (numberOfInstances > 1) { + bitmap = decodeTextRegion(huffman, refinement, + currentWidth, currentHeight, 0, + numberOfInstances, 1, //strip size + symbols.concat(newSymbols), + symbolCodeLength, + 0, //transposed + 0, //ds offset + 1, //top left 7.4.3.1.1 + 0, //OR operator + huffmanTables, + refinementTemplateIndex, refinementAt, + decodingContext); + } else { + var symbolId = decodeIAID(contextCache, decoder, symbolCodeLength); + var rdx = decodeInteger(contextCache, 'IARDX', decoder); // 6.4.11.3 + var rdy = decodeInteger(contextCache, 'IARDY', decoder); // 6.4.11.4 + var symbol = (symbolId < symbols.length ? symbols[symbolId] : + newSymbols[symbolId - symbols.length]); + bitmap = decodeRefinement(currentWidth, currentHeight, + refinementTemplateIndex, symbol, rdx, rdy, false, refinementAt, + decodingContext); + } + } else { + // 6.5.8.1 Direct-coded symbol bitmap + bitmap = decodeBitmap(false, currentWidth, currentHeight, + templateIndex, false, null, at, decodingContext); + } + newSymbols.push(bitmap); + } + } + // 6.5.10 Exported symbols + var exportedSymbols = []; + var flags = [], currentFlag = false; + var totalSymbolsLength = symbols.length + numberOfNewSymbols; + while (flags.length < totalSymbolsLength) { + var runLength = decodeInteger(contextCache, 'IAEX', decoder); + while (runLength--) { + flags.push(currentFlag); + } + currentFlag = !currentFlag; + } + for (var i = 0, ii = symbols.length; i < ii; i++) { + if (flags[i]) { + exportedSymbols.push(symbols[i]); + } + } + for (var j = 0; j < numberOfNewSymbols; i++, j++) { + if (flags[i]) { + exportedSymbols.push(newSymbols[j]); + } + } + return exportedSymbols; } - Page.prototype = { - getPageProp: function Page_getPageProp(key) { - return this.pageDict.get(key); - }, - - getInheritedPageProp: function Page_getInheritedPageProp(key) { - var dict = this.pageDict, valueArray = null, loopCount = 0; - var MAX_LOOP_COUNT = 100; - // Always walk up the entire parent chain, to be able to find - // e.g. \Resources placed on multiple levels of the tree. - while (dict) { - var value = dict.get(key); - if (value) { - if (!valueArray) { - valueArray = []; - } - valueArray.push(value); - } - if (++loopCount > MAX_LOOP_COUNT) { - warn('Page_getInheritedPageProp: maximum loop count exceeded.'); - break; - } - dict = dict.get('Parent'); - } - if (!valueArray) { - return Dict.empty; - } - if (valueArray.length === 1 || !isDict(valueArray[0]) || - loopCount > MAX_LOOP_COUNT) { - return valueArray[0]; - } - return Dict.merge(this.xref, valueArray); - }, - - get content() { - return this.getPageProp('Contents'); - }, - - get resources() { - // For robustness: The spec states that a \Resources entry has to be - // present, but can be empty. Some document omit it still, in this case - // we return an empty dictionary. - return shadow(this, 'resources', this.getInheritedPageProp('Resources')); - }, - - get mediaBox() { - var obj = this.getInheritedPageProp('MediaBox'); - // Reset invalid media box to letter size. - if (!isArray(obj) || obj.length !== 4) { - obj = LETTER_SIZE_MEDIABOX; - } - return shadow(this, 'mediaBox', obj); - }, - - get view() { - var mediaBox = this.mediaBox; - var cropBox = this.getInheritedPageProp('CropBox'); - if (!isArray(cropBox) || cropBox.length !== 4) { - return shadow(this, 'view', mediaBox); - } - - // From the spec, 6th ed., p.963: - // "The crop, bleed, trim, and art boxes should not ordinarily - // extend beyond the boundaries of the media box. If they do, they are - // effectively reduced to their intersection with the media box." - cropBox = Util.intersect(cropBox, mediaBox); - if (!cropBox) { - return shadow(this, 'view', mediaBox); - } - return shadow(this, 'view', cropBox); - }, - - get rotate() { - var rotate = this.getInheritedPageProp('Rotate') || 0; - // Normalize rotation so it's a multiple of 90 and between 0 and 270 - if (rotate % 90 !== 0) { - rotate = 0; - } else if (rotate >= 360) { - rotate = rotate % 360; - } else if (rotate < 0) { - // The spec doesn't cover negatives, assume its counterclockwise - // rotation. The following is the other implementation of modulo. - rotate = ((rotate % 360) + 360) % 360; - } - return shadow(this, 'rotate', rotate); - }, - - getContentStream: function Page_getContentStream() { - var content = this.content; - var stream; - if (isArray(content)) { - // fetching items - var xref = this.xref; - var i, n = content.length; - var streams = []; - for (i = 0; i < n; ++i) { - streams.push(xref.fetchIfRef(content[i])); - } - stream = new StreamsSequenceStream(streams); - } else if (isStream(content)) { - stream = content; - } else { - // replacing non-existent page content with empty one - stream = new NullStream(); - } - return stream; - }, - - loadResources: function Page_loadResources(keys) { - if (!this.resourcesPromise) { - // TODO: add async getInheritedPageProp and remove this. - this.resourcesPromise = this.pdfManager.ensure(this, 'resources'); - } - return this.resourcesPromise.then(function resourceSuccess() { - var objectLoader = new ObjectLoader(this.resources.map, - keys, - this.xref); - return objectLoader.load(); - }.bind(this)); - }, - - getOperatorList: function Page_getOperatorList(handler, task, intent) { - var self = this; - - var pdfManager = this.pdfManager; - var contentStreamPromise = pdfManager.ensure(this, 'getContentStream', - []); - var resourcesPromise = this.loadResources([ - 'ExtGState', - 'ColorSpace', - 'Pattern', - 'Shading', - 'XObject', - 'Font' - // ProcSet - // Properties - ]); - - var partialEvaluator = new PartialEvaluator(pdfManager, this.xref, - handler, this.pageIndex, - 'p' + this.pageIndex + '_', - this.idCounters, - this.fontCache); - - var dataPromises = Promise.all([contentStreamPromise, resourcesPromise]); - var pageListPromise = dataPromises.then(function(data) { - var contentStream = data[0]; - var opList = new OperatorList(intent, handler, self.pageIndex); - - handler.send('StartRenderPage', { - transparency: partialEvaluator.hasBlendModes(self.resources), - pageIndex: self.pageIndex, - intent: intent - }); - return partialEvaluator.getOperatorList(contentStream, task, - self.resources, opList).then(function () { - return opList; - }); - }); - - var annotationsPromise = pdfManager.ensure(this, 'annotations'); - return Promise.all([pageListPromise, annotationsPromise]).then( - function(datas) { - var pageOpList = datas[0]; - var annotations = datas[1]; - - if (annotations.length === 0) { - pageOpList.flush(true); - return pageOpList; - } - - var annotationsReadyPromise = Annotation.appendToOperatorList( - annotations, pageOpList, partialEvaluator, task, intent); - return annotationsReadyPromise.then(function () { - pageOpList.flush(true); - return pageOpList; - }); - }); - }, - - extractTextContent: function Page_extractTextContent(task, - normalizeWhitespace) { - var handler = { - on: function nullHandlerOn() {}, - send: function nullHandlerSend() {} - }; - - var self = this; - - var pdfManager = this.pdfManager; - var contentStreamPromise = pdfManager.ensure(this, 'getContentStream', - []); - - var resourcesPromise = this.loadResources([ - 'ExtGState', - 'XObject', - 'Font' - ]); - - var dataPromises = Promise.all([contentStreamPromise, - resourcesPromise]); - return dataPromises.then(function(data) { - var contentStream = data[0]; - var partialEvaluator = new PartialEvaluator(pdfManager, self.xref, - handler, self.pageIndex, - 'p' + self.pageIndex + '_', - self.idCounters, - self.fontCache); - - return partialEvaluator.getTextContent(contentStream, - task, - self.resources, - /* stateManager = */ null, - normalizeWhitespace); - }); - }, - - getAnnotationsData: function Page_getAnnotationsData(intent) { - var annotations = this.annotations; - var annotationsData = []; - for (var i = 0, n = annotations.length; i < n; ++i) { - if (intent) { - if (!(intent === 'display' && annotations[i].viewable) && - !(intent === 'print' && annotations[i].printable)) { - continue; - } - } - annotationsData.push(annotations[i].data); - } - return annotationsData; - }, - - get annotations() { - var annotations = []; - var annotationRefs = this.getInheritedPageProp('Annots') || []; - var annotationFactory = new AnnotationFactory(); - for (var i = 0, n = annotationRefs.length; i < n; ++i) { - var annotationRef = annotationRefs[i]; - var annotation = annotationFactory.create(this.xref, annotationRef); - if (annotation) { - annotations.push(annotation); - } - } - return shadow(this, 'annotations', annotations); + function decodeTextRegion(huffman, refinement, width, height, + defaultPixelValue, numberOfSymbolInstances, + stripSize, inputSymbols, symbolCodeLength, + transposed, dsOffset, referenceCorner, + combinationOperator, huffmanTables, + refinementTemplateIndex, refinementAt, + decodingContext) { + if (huffman) { + error('JBIG2 error: huffman is not supported'); } - }; - return Page; -})(); + // Prepare bitmap + var bitmap = []; + var i, row; + for (i = 0; i < height; i++) { + row = new Uint8Array(width); + if (defaultPixelValue) { + for (var j = 0; j < width; j++) { + row[j] = defaultPixelValue; + } + } + bitmap.push(row); + } -/** - * The `PDFDocument` holds all the data of the PDF file. Compared to the - * `PDFDoc`, this one doesn't have any job management code. - * Right now there exists one PDFDocument on the main thread + one object - * for each worker. If there is no worker support enabled, there are two - * `PDFDocument` objects on the main thread created. - */ -var PDFDocument = (function PDFDocumentClosure() { - var FINGERPRINT_FIRST_BYTES = 1024; - var EMPTY_FINGERPRINT = '\x00\x00\x00\x00\x00\x00\x00' + - '\x00\x00\x00\x00\x00\x00\x00\x00\x00'; + var decoder = decodingContext.decoder; + var contextCache = decodingContext.contextCache; + var stripT = -decodeInteger(contextCache, 'IADT', decoder); // 6.4.6 + var firstS = 0; + i = 0; + while (i < numberOfSymbolInstances) { + var deltaT = decodeInteger(contextCache, 'IADT', decoder); // 6.4.6 + stripT += deltaT; - function PDFDocument(pdfManager, arg, password) { - if (isStream(arg)) { - init.call(this, pdfManager, arg, password); - } else if (isArrayBuffer(arg)) { - init.call(this, pdfManager, new Stream(arg), password); + var deltaFirstS = decodeInteger(contextCache, 'IAFS', decoder); // 6.4.7 + firstS += deltaFirstS; + var currentS = firstS; + do { + var currentT = (stripSize === 1 ? 0 : + decodeInteger(contextCache, 'IAIT', decoder)); // 6.4.9 + var t = stripSize * stripT + currentT; + var symbolId = decodeIAID(contextCache, decoder, symbolCodeLength); + var applyRefinement = (refinement && + decodeInteger(contextCache, 'IARI', decoder)); + var symbolBitmap = inputSymbols[symbolId]; + var symbolWidth = symbolBitmap[0].length; + var symbolHeight = symbolBitmap.length; + if (applyRefinement) { + var rdw = decodeInteger(contextCache, 'IARDW', decoder); // 6.4.11.1 + var rdh = decodeInteger(contextCache, 'IARDH', decoder); // 6.4.11.2 + var rdx = decodeInteger(contextCache, 'IARDX', decoder); // 6.4.11.3 + var rdy = decodeInteger(contextCache, 'IARDY', decoder); // 6.4.11.4 + symbolWidth += rdw; + symbolHeight += rdh; + symbolBitmap = decodeRefinement(symbolWidth, symbolHeight, + refinementTemplateIndex, symbolBitmap, (rdw >> 1) + rdx, + (rdh >> 1) + rdy, false, refinementAt, + decodingContext); + } + var offsetT = t - ((referenceCorner & 1) ? 0 : symbolHeight); + var offsetS = currentS - ((referenceCorner & 2) ? symbolWidth : 0); + var s2, t2, symbolRow; + if (transposed) { + // Place Symbol Bitmap from T1,S1 + for (s2 = 0; s2 < symbolHeight; s2++) { + row = bitmap[offsetS + s2]; + if (!row) { + continue; + } + symbolRow = symbolBitmap[s2]; + // To ignore Parts of Symbol bitmap which goes + // outside bitmap region + var maxWidth = Math.min(width - offsetT, symbolWidth); + switch (combinationOperator) { + case 0: // OR + for (t2 = 0; t2 < maxWidth; t2++) { + row[offsetT + t2] |= symbolRow[t2]; + } + break; + case 2: // XOR + for (t2 = 0; t2 < maxWidth; t2++) { + row[offsetT + t2] ^= symbolRow[t2]; + } + break; + default: + error('JBIG2 error: operator ' + combinationOperator + + ' is not supported'); + } + } + currentS += symbolHeight - 1; + } else { + for (t2 = 0; t2 < symbolHeight; t2++) { + row = bitmap[offsetT + t2]; + if (!row) { + continue; + } + symbolRow = symbolBitmap[t2]; + switch (combinationOperator) { + case 0: // OR + for (s2 = 0; s2 < symbolWidth; s2++) { + row[offsetS + s2] |= symbolRow[s2]; + } + break; + case 2: // XOR + for (s2 = 0; s2 < symbolWidth; s2++) { + row[offsetS + s2] ^= symbolRow[s2]; + } + break; + default: + error('JBIG2 error: operator ' + combinationOperator + + ' is not supported'); + } + } + currentS += symbolWidth - 1; + } + i++; + var deltaS = decodeInteger(contextCache, 'IADS', decoder); // 6.4.8 + if (deltaS === null) { + break; // OOB + } + currentS += deltaS + dsOffset; + } while (true); + } + return bitmap; + } + + function readSegmentHeader(data, start) { + var segmentHeader = {}; + segmentHeader.number = readUint32(data, start); + var flags = data[start + 4]; + var segmentType = flags & 0x3F; + if (!SegmentTypes[segmentType]) { + error('JBIG2 error: invalid segment type: ' + segmentType); + } + segmentHeader.type = segmentType; + segmentHeader.typeName = SegmentTypes[segmentType]; + segmentHeader.deferredNonRetain = !!(flags & 0x80); + + var pageAssociationFieldSize = !!(flags & 0x40); + var referredFlags = data[start + 5]; + var referredToCount = (referredFlags >> 5) & 7; + var retainBits = [referredFlags & 31]; + var position = start + 6; + if (referredFlags === 7) { + referredToCount = readUint32(data, position - 1) & 0x1FFFFFFF; + position += 3; + var bytes = (referredToCount + 7) >> 3; + retainBits[0] = data[position++]; + while (--bytes > 0) { + retainBits.push(data[position++]); + } + } else if (referredFlags === 5 || referredFlags === 6) { + error('JBIG2 error: invalid referred-to flags'); + } + + segmentHeader.retainBits = retainBits; + var referredToSegmentNumberSize = (segmentHeader.number <= 256 ? 1 : + (segmentHeader.number <= 65536 ? 2 : 4)); + var referredTo = []; + var i, ii; + for (i = 0; i < referredToCount; i++) { + var number = (referredToSegmentNumberSize === 1 ? data[position] : + (referredToSegmentNumberSize === 2 ? readUint16(data, position) : + readUint32(data, position))); + referredTo.push(number); + position += referredToSegmentNumberSize; + } + segmentHeader.referredTo = referredTo; + if (!pageAssociationFieldSize) { + segmentHeader.pageAssociation = data[position++]; } else { - error('PDFDocument: Unknown argument type'); + segmentHeader.pageAssociation = readUint32(data, position); + position += 4; } - } + segmentHeader.length = readUint32(data, position); + position += 4; - function init(pdfManager, stream, password) { - assert(stream.length > 0, 'stream must have data'); - this.pdfManager = pdfManager; - this.stream = stream; - var xref = new XRef(this.stream, password, pdfManager); - this.xref = xref; - } - - function find(stream, needle, limit, backwards) { - var pos = stream.pos; - var end = stream.end; - var strBuf = []; - if (pos + limit > end) { - limit = end - pos; - } - for (var n = 0; n < limit; ++n) { - strBuf.push(String.fromCharCode(stream.getByte())); - } - var str = strBuf.join(''); - stream.pos = pos; - var index = backwards ? str.lastIndexOf(needle) : str.indexOf(needle); - if (index === -1) { - return false; /* not found */ - } - stream.pos += index; - return true; /* found */ - } - - var DocumentInfoValidators = { - get entries() { - // Lazily build this since all the validation functions below are not - // defined until after this file loads. - return shadow(this, 'entries', { - Title: isString, - Author: isString, - Subject: isString, - Keywords: isString, - Creator: isString, - Producer: isString, - CreationDate: isString, - ModDate: isString, - Trapped: isName - }); - } - }; - - PDFDocument.prototype = { - parse: function PDFDocument_parse(recoveryMode) { - this.setup(recoveryMode); - var version = this.catalog.catDict.get('Version'); - if (isName(version)) { - this.pdfFormatVersion = version.name; - } - try { - // checking if AcroForm is present - this.acroForm = this.catalog.catDict.get('AcroForm'); - if (this.acroForm) { - this.xfa = this.acroForm.get('XFA'); - var fields = this.acroForm.get('Fields'); - if ((!fields || !isArray(fields) || fields.length === 0) && - !this.xfa) { - // no fields and no XFA -- not a form (?) - this.acroForm = null; - } + if (segmentHeader.length === 0xFFFFFFFF) { + // 7.2.7 Segment data length, unknown segment length + if (segmentType === 38) { // ImmediateGenericRegion + var genericRegionInfo = readRegionSegmentInformation(data, position); + var genericRegionSegmentFlags = data[position + + RegionSegmentInformationFieldLength]; + var genericRegionMmr = !!(genericRegionSegmentFlags & 1); + // searching for the segment end + var searchPatternLength = 6; + var searchPattern = new Uint8Array(searchPatternLength); + if (!genericRegionMmr) { + searchPattern[0] = 0xFF; + searchPattern[1] = 0xAC; } - } catch (ex) { - info('Something wrong with AcroForm entry'); - this.acroForm = null; - } - }, - - get linearization() { - var linearization = null; - if (this.stream.length) { - try { - linearization = Linearization.create(this.stream); - } catch (err) { - if (err instanceof MissingDataException) { - throw err; + searchPattern[2] = (genericRegionInfo.height >>> 24) & 0xFF; + searchPattern[3] = (genericRegionInfo.height >> 16) & 0xFF; + searchPattern[4] = (genericRegionInfo.height >> 8) & 0xFF; + searchPattern[5] = genericRegionInfo.height & 0xFF; + for (i = position, ii = data.length; i < ii; i++) { + var j = 0; + while (j < searchPatternLength && searchPattern[j] === data[i + j]) { + j++; } - info(err); - } - } - // shadow the prototype getter with a data property - return shadow(this, 'linearization', linearization); - }, - get startXRef() { - var stream = this.stream; - var startXRef = 0; - var linearization = this.linearization; - if (linearization) { - // Find end of first obj. - stream.reset(); - if (find(stream, 'endobj', 1024)) { - startXRef = stream.pos + 6; - } - } else { - // Find startxref by jumping backward from the end of the file. - var step = 1024; - var found = false, pos = stream.end; - while (!found && pos > 0) { - pos -= step - 'startxref'.length; - if (pos < 0) { - pos = 0; - } - stream.pos = pos; - found = find(stream, 'startxref', step, true); - } - if (found) { - stream.skip(9); - var ch; - do { - ch = stream.getByte(); - } while (Lexer.isSpace(ch)); - var str = ''; - while (ch >= 0x20 && ch <= 0x39) { // < '9' - str += String.fromCharCode(ch); - ch = stream.getByte(); - } - startXRef = parseInt(str, 10); - if (isNaN(startXRef)) { - startXRef = 0; - } - } - } - // shadow the prototype getter with a data property - return shadow(this, 'startXRef', startXRef); - }, - get mainXRefEntriesOffset() { - var mainXRefEntriesOffset = 0; - var linearization = this.linearization; - if (linearization) { - mainXRefEntriesOffset = linearization.mainXRefEntriesOffset; - } - // shadow the prototype getter with a data property - return shadow(this, 'mainXRefEntriesOffset', mainXRefEntriesOffset); - }, - // Find the header, remove leading garbage and setup the stream - // starting from the header. - checkHeader: function PDFDocument_checkHeader() { - var stream = this.stream; - stream.reset(); - if (find(stream, '%PDF-', 1024)) { - // Found the header, trim off any garbage before it. - stream.moveStart(); - // Reading file format version - var MAX_VERSION_LENGTH = 12; - var version = '', ch; - while ((ch = stream.getByte()) > 0x20) { // SPACE - if (version.length >= MAX_VERSION_LENGTH) { + if (j === searchPatternLength) { + segmentHeader.length = i + searchPatternLength; break; } - version += String.fromCharCode(ch); } - if (!this.pdfFormatVersion) { - // removing "%PDF-"-prefix - this.pdfFormatVersion = version.substring(5); + if (segmentHeader.length === 0xFFFFFFFF) { + error('JBIG2 error: segment end was not found'); } + } else { + error('JBIG2 error: invalid unknown segment length'); + } + } + segmentHeader.headerEnd = position; + return segmentHeader; + } + + function readSegments(header, data, start, end) { + var segments = []; + var position = start; + while (position < end) { + var segmentHeader = readSegmentHeader(data, position); + position = segmentHeader.headerEnd; + var segment = { + header: segmentHeader, + data: data + }; + if (!header.randomAccess) { + segment.start = position; + position += segmentHeader.length; + segment.end = position; + } + segments.push(segment); + if (segmentHeader.type === 51) { + break; // end of file is found + } + } + if (header.randomAccess) { + for (var i = 0, ii = segments.length; i < ii; i++) { + segments[i].start = position; + position += segments[i].header.length; + segments[i].end = position; + } + } + return segments; + } + + // 7.4.1 Region segment information field + function readRegionSegmentInformation(data, start) { + return { + width: readUint32(data, start), + height: readUint32(data, start + 4), + x: readUint32(data, start + 8), + y: readUint32(data, start + 12), + combinationOperator: data[start + 16] & 7 + }; + } + var RegionSegmentInformationFieldLength = 17; + + function processSegment(segment, visitor) { + var header = segment.header; + + var data = segment.data, position = segment.start, end = segment.end; + var args, at, i, atLength; + switch (header.type) { + case 0: // SymbolDictionary + // 7.4.2 Symbol dictionary segment syntax + var dictionary = {}; + var dictionaryFlags = readUint16(data, position); // 7.4.2.1.1 + dictionary.huffman = !!(dictionaryFlags & 1); + dictionary.refinement = !!(dictionaryFlags & 2); + dictionary.huffmanDHSelector = (dictionaryFlags >> 2) & 3; + dictionary.huffmanDWSelector = (dictionaryFlags >> 4) & 3; + dictionary.bitmapSizeSelector = (dictionaryFlags >> 6) & 1; + dictionary.aggregationInstancesSelector = (dictionaryFlags >> 7) & 1; + dictionary.bitmapCodingContextUsed = !!(dictionaryFlags & 256); + dictionary.bitmapCodingContextRetained = !!(dictionaryFlags & 512); + dictionary.template = (dictionaryFlags >> 10) & 3; + dictionary.refinementTemplate = (dictionaryFlags >> 12) & 1; + position += 2; + if (!dictionary.huffman) { + atLength = dictionary.template === 0 ? 4 : 1; + at = []; + for (i = 0; i < atLength; i++) { + at.push({ + x: readInt8(data, position), + y: readInt8(data, position + 1) + }); + position += 2; + } + dictionary.at = at; + } + if (dictionary.refinement && !dictionary.refinementTemplate) { + at = []; + for (i = 0; i < 2; i++) { + at.push({ + x: readInt8(data, position), + y: readInt8(data, position + 1) + }); + position += 2; + } + dictionary.refinementAt = at; + } + dictionary.numberOfExportedSymbols = readUint32(data, position); + position += 4; + dictionary.numberOfNewSymbols = readUint32(data, position); + position += 4; + args = [dictionary, header.number, header.referredTo, + data, position, end]; + break; + case 6: // ImmediateTextRegion + case 7: // ImmediateLosslessTextRegion + var textRegion = {}; + textRegion.info = readRegionSegmentInformation(data, position); + position += RegionSegmentInformationFieldLength; + var textRegionSegmentFlags = readUint16(data, position); + position += 2; + textRegion.huffman = !!(textRegionSegmentFlags & 1); + textRegion.refinement = !!(textRegionSegmentFlags & 2); + textRegion.stripSize = 1 << ((textRegionSegmentFlags >> 2) & 3); + textRegion.referenceCorner = (textRegionSegmentFlags >> 4) & 3; + textRegion.transposed = !!(textRegionSegmentFlags & 64); + textRegion.combinationOperator = (textRegionSegmentFlags >> 7) & 3; + textRegion.defaultPixelValue = (textRegionSegmentFlags >> 9) & 1; + textRegion.dsOffset = (textRegionSegmentFlags << 17) >> 27; + textRegion.refinementTemplate = (textRegionSegmentFlags >> 15) & 1; + if (textRegion.huffman) { + var textRegionHuffmanFlags = readUint16(data, position); + position += 2; + textRegion.huffmanFS = (textRegionHuffmanFlags) & 3; + textRegion.huffmanDS = (textRegionHuffmanFlags >> 2) & 3; + textRegion.huffmanDT = (textRegionHuffmanFlags >> 4) & 3; + textRegion.huffmanRefinementDW = (textRegionHuffmanFlags >> 6) & 3; + textRegion.huffmanRefinementDH = (textRegionHuffmanFlags >> 8) & 3; + textRegion.huffmanRefinementDX = (textRegionHuffmanFlags >> 10) & 3; + textRegion.huffmanRefinementDY = (textRegionHuffmanFlags >> 12) & 3; + textRegion.huffmanRefinementSizeSelector = + !!(textRegionHuffmanFlags & 14); + } + if (textRegion.refinement && !textRegion.refinementTemplate) { + at = []; + for (i = 0; i < 2; i++) { + at.push({ + x: readInt8(data, position), + y: readInt8(data, position + 1) + }); + position += 2; + } + textRegion.refinementAt = at; + } + textRegion.numberOfSymbolInstances = readUint32(data, position); + position += 4; + // TODO 7.4.3.1.7 Symbol ID Huffman table decoding + if (textRegion.huffman) { + error('JBIG2 error: huffman is not supported'); + } + args = [textRegion, header.referredTo, data, position, end]; + break; + case 38: // ImmediateGenericRegion + case 39: // ImmediateLosslessGenericRegion + var genericRegion = {}; + genericRegion.info = readRegionSegmentInformation(data, position); + position += RegionSegmentInformationFieldLength; + var genericRegionSegmentFlags = data[position++]; + genericRegion.mmr = !!(genericRegionSegmentFlags & 1); + genericRegion.template = (genericRegionSegmentFlags >> 1) & 3; + genericRegion.prediction = !!(genericRegionSegmentFlags & 8); + if (!genericRegion.mmr) { + atLength = genericRegion.template === 0 ? 4 : 1; + at = []; + for (i = 0; i < atLength; i++) { + at.push({ + x: readInt8(data, position), + y: readInt8(data, position + 1) + }); + position += 2; + } + genericRegion.at = at; + } + args = [genericRegion, data, position, end]; + break; + case 48: // PageInformation + var pageInfo = { + width: readUint32(data, position), + height: readUint32(data, position + 4), + resolutionX: readUint32(data, position + 8), + resolutionY: readUint32(data, position + 12) + }; + if (pageInfo.height === 0xFFFFFFFF) { + delete pageInfo.height; + } + var pageSegmentFlags = data[position + 16]; + var pageStripingInformation = readUint16(data, position + 17); + pageInfo.lossless = !!(pageSegmentFlags & 1); + pageInfo.refinement = !!(pageSegmentFlags & 2); + pageInfo.defaultPixelValue = (pageSegmentFlags >> 2) & 1; + pageInfo.combinationOperator = (pageSegmentFlags >> 3) & 3; + pageInfo.requiresBuffer = !!(pageSegmentFlags & 32); + pageInfo.combinationOperatorOverride = !!(pageSegmentFlags & 64); + args = [pageInfo]; + break; + case 49: // EndOfPage + break; + case 50: // EndOfStripe + break; + case 51: // EndOfFile + break; + case 62: // 7.4.15 defines 2 extension types which + // are comments and can be ignored. + break; + default: + error('JBIG2 error: segment type ' + header.typeName + '(' + + header.type + ') is not implemented'); + } + var callbackName = 'on' + header.typeName; + if (callbackName in visitor) { + visitor[callbackName].apply(visitor, args); + } + } + + function processSegments(segments, visitor) { + for (var i = 0, ii = segments.length; i < ii; i++) { + processSegment(segments[i], visitor); + } + } + + function parseJbig2(data, start, end) { + var position = start; + if (data[position] !== 0x97 || data[position + 1] !== 0x4A || + data[position + 2] !== 0x42 || data[position + 3] !== 0x32 || + data[position + 4] !== 0x0D || data[position + 5] !== 0x0A || + data[position + 6] !== 0x1A || data[position + 7] !== 0x0A) { + error('JBIG2 error: invalid header'); + } + var header = {}; + position += 8; + var flags = data[position++]; + header.randomAccess = !(flags & 1); + if (!(flags & 2)) { + header.numberOfPages = readUint32(data, position); + position += 4; + } + var segments = readSegments(header, data, position, end); + error('Not implemented'); + // processSegments(segments, new SimpleSegmentVisitor()); + } + + function parseJbig2Chunks(chunks) { + var visitor = new SimpleSegmentVisitor(); + for (var i = 0, ii = chunks.length; i < ii; i++) { + var chunk = chunks[i]; + var segments = readSegments({}, chunk.data, chunk.start, chunk.end); + processSegments(segments, visitor); + } + return visitor.buffer; + } + + function SimpleSegmentVisitor() {} + + SimpleSegmentVisitor.prototype = { + onPageInformation: function SimpleSegmentVisitor_onPageInformation(info) { + this.currentPageInfo = info; + var rowSize = (info.width + 7) >> 3; + var buffer = new Uint8Array(rowSize * info.height); + // The contents of ArrayBuffers are initialized to 0. + // Fill the buffer with 0xFF only if info.defaultPixelValue is set + if (info.defaultPixelValue) { + for (var i = 0, ii = buffer.length; i < ii; i++) { + buffer[i] = 0xFF; + } + } + this.buffer = buffer; + }, + drawBitmap: function SimpleSegmentVisitor_drawBitmap(regionInfo, bitmap) { + var pageInfo = this.currentPageInfo; + var width = regionInfo.width, height = regionInfo.height; + var rowSize = (pageInfo.width + 7) >> 3; + var combinationOperator = pageInfo.combinationOperatorOverride ? + regionInfo.combinationOperator : pageInfo.combinationOperator; + var buffer = this.buffer; + var mask0 = 128 >> (regionInfo.x & 7); + var offset0 = regionInfo.y * rowSize + (regionInfo.x >> 3); + var i, j, mask, offset; + switch (combinationOperator) { + case 0: // OR + for (i = 0; i < height; i++) { + mask = mask0; + offset = offset0; + for (j = 0; j < width; j++) { + if (bitmap[i][j]) { + buffer[offset] |= mask; + } + mask >>= 1; + if (!mask) { + mask = 128; + offset++; + } + } + offset0 += rowSize; + } + break; + case 2: // XOR + for (i = 0; i < height; i++) { + mask = mask0; + offset = offset0; + for (j = 0; j < width; j++) { + if (bitmap[i][j]) { + buffer[offset] ^= mask; + } + mask >>= 1; + if (!mask) { + mask = 128; + offset++; + } + } + offset0 += rowSize; + } + break; + default: + error('JBIG2 error: operator ' + combinationOperator + + ' is not supported'); + } + }, + onImmediateGenericRegion: + function SimpleSegmentVisitor_onImmediateGenericRegion(region, data, + start, end) { + var regionInfo = region.info; + var decodingContext = new DecodingContext(data, start, end); + var bitmap = decodeBitmap(region.mmr, regionInfo.width, regionInfo.height, + region.template, region.prediction, null, + region.at, decodingContext); + this.drawBitmap(regionInfo, bitmap); + }, + onImmediateLosslessGenericRegion: + function SimpleSegmentVisitor_onImmediateLosslessGenericRegion() { + this.onImmediateGenericRegion.apply(this, arguments); + }, + onSymbolDictionary: + function SimpleSegmentVisitor_onSymbolDictionary(dictionary, + currentSegment, + referredSegments, + data, start, end) { + var huffmanTables; + if (dictionary.huffman) { + error('JBIG2 error: huffman is not supported'); + } + + // Combines exported symbols from all referred segments + var symbols = this.symbols; + if (!symbols) { + this.symbols = symbols = {}; + } + + var inputSymbols = []; + for (var i = 0, ii = referredSegments.length; i < ii; i++) { + inputSymbols = inputSymbols.concat(symbols[referredSegments[i]]); + } + + var decodingContext = new DecodingContext(data, start, end); + symbols[currentSegment] = decodeSymbolDictionary(dictionary.huffman, + dictionary.refinement, inputSymbols, dictionary.numberOfNewSymbols, + dictionary.numberOfExportedSymbols, huffmanTables, + dictionary.template, dictionary.at, + dictionary.refinementTemplate, dictionary.refinementAt, + decodingContext); + }, + onImmediateTextRegion: + function SimpleSegmentVisitor_onImmediateTextRegion(region, + referredSegments, + data, start, end) { + var regionInfo = region.info; + var huffmanTables; + + // Combines exported symbols from all referred segments + var symbols = this.symbols; + var inputSymbols = []; + for (var i = 0, ii = referredSegments.length; i < ii; i++) { + inputSymbols = inputSymbols.concat(symbols[referredSegments[i]]); + } + var symbolCodeLength = log2(inputSymbols.length); + + var decodingContext = new DecodingContext(data, start, end); + var bitmap = decodeTextRegion(region.huffman, region.refinement, + regionInfo.width, regionInfo.height, region.defaultPixelValue, + region.numberOfSymbolInstances, region.stripSize, inputSymbols, + symbolCodeLength, region.transposed, region.dsOffset, + region.referenceCorner, region.combinationOperator, huffmanTables, + region.refinementTemplate, region.refinementAt, decodingContext); + this.drawBitmap(regionInfo, bitmap); + }, + onImmediateLosslessTextRegion: + function SimpleSegmentVisitor_onImmediateLosslessTextRegion() { + this.onImmediateTextRegion.apply(this, arguments); + } + }; + + function Jbig2Image() {} + + Jbig2Image.prototype = { + parseChunks: function Jbig2Image_parseChunks(chunks) { + return parseJbig2Chunks(chunks); + } + }; + + return Jbig2Image; +})(); + +exports.Jbig2Image = Jbig2Image; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreJpx = {}), root.pdfjsSharedUtil, + root.pdfjsCoreArithmeticDecoder); + } +}(this, function (exports, sharedUtil, coreArithmeticDecoder) { + +var info = sharedUtil.info; +var log2 = sharedUtil.log2; +var readUint16 = sharedUtil.readUint16; +var readUint32 = sharedUtil.readUint32; +var warn = sharedUtil.warn; +var ArithmeticDecoder = coreArithmeticDecoder.ArithmeticDecoder; + +var JpxImage = (function JpxImageClosure() { + // Table E.1 + var SubbandsGainLog2 = { + 'LL': 0, + 'LH': 1, + 'HL': 1, + 'HH': 2 + }; + function JpxImage() { + this.failOnCorruptedImage = false; + } + JpxImage.prototype = { + parse: function JpxImage_parse(data) { + + var head = readUint16(data, 0); + // No box header, immediate start of codestream (SOC) + if (head === 0xFF4F) { + this.parseCodestream(data, 0, data.length); return; } - // May not be a PDF file, continue anyway. - }, - parseStartXRef: function PDFDocument_parseStartXRef() { - var startXRef = this.startXRef; - this.xref.setStartXRef(startXRef); - }, - setup: function PDFDocument_setup(recoveryMode) { - this.xref.parse(recoveryMode); - this.catalog = new Catalog(this.pdfManager, this.xref); - }, - get numPages() { - var linearization = this.linearization; - var num = linearization ? linearization.numPages : this.catalog.numPages; - // shadow the prototype getter - return shadow(this, 'numPages', num); - }, - get documentInfo() { - var docInfo = { - PDFFormatVersion: this.pdfFormatVersion, - IsAcroFormPresent: !!this.acroForm, - IsXFAPresent: !!this.xfa - }; - var infoDict; - try { - infoDict = this.xref.trailer.get('Info'); - } catch (err) { - info('The document information dictionary is invalid.'); + + var position = 0, length = data.length; + while (position < length) { + var headerSize = 8; + var lbox = readUint32(data, position); + var tbox = readUint32(data, position + 4); + position += headerSize; + if (lbox === 1) { + // XLBox: read UInt64 according to spec. + // JavaScript's int precision of 53 bit should be sufficient here. + lbox = readUint32(data, position) * 4294967296 + + readUint32(data, position + 4); + position += 8; + headerSize += 8; + } + if (lbox === 0) { + lbox = length - position + headerSize; + } + if (lbox < headerSize) { + throw new Error('JPX Error: Invalid box field size'); + } + var dataLength = lbox - headerSize; + var jumpDataLength = true; + switch (tbox) { + case 0x6A703268: // 'jp2h' + jumpDataLength = false; // parsing child boxes + break; + case 0x636F6C72: // 'colr' + // Colorspaces are not used, the CS from the PDF is used. + var method = data[position]; + if (method === 1) { + // enumerated colorspace + var colorspace = readUint32(data, position + 3); + switch (colorspace) { + case 16: // this indicates a sRGB colorspace + case 17: // this indicates a grayscale colorspace + case 18: // this indicates a YUV colorspace + break; + default: + warn('Unknown colorspace ' + colorspace); + break; + } + } else if (method === 2) { + info('ICC profile not supported'); + } + break; + case 0x6A703263: // 'jp2c' + this.parseCodestream(data, position, position + dataLength); + break; + case 0x6A502020: // 'jP\024\024' + if (0x0d0a870a !== readUint32(data, position)) { + warn('Invalid JP2 signature'); + } + break; + // The following header types are valid but currently not used: + case 0x6A501A1A: // 'jP\032\032' + case 0x66747970: // 'ftyp' + case 0x72726571: // 'rreq' + case 0x72657320: // 'res ' + case 0x69686472: // 'ihdr' + break; + default: + var headerType = String.fromCharCode((tbox >> 24) & 0xFF, + (tbox >> 16) & 0xFF, + (tbox >> 8) & 0xFF, + tbox & 0xFF); + warn('Unsupported header type ' + tbox + ' (' + headerType + ')'); + break; + } + if (jumpDataLength) { + position += dataLength; + } } - if (infoDict) { - var validEntries = DocumentInfoValidators.entries; - // Only fill the document info with valid entries from the spec. - for (var key in validEntries) { - if (infoDict.has(key)) { - var value = infoDict.get(key); - // Make sure the value conforms to the spec. - if (validEntries[key](value)) { - docInfo[key] = (typeof value !== 'string' ? - value : stringToPDFString(value)); + }, + parseImageProperties: function JpxImage_parseImageProperties(stream) { + var newByte = stream.getByte(); + while (newByte >= 0) { + var oldByte = newByte; + newByte = stream.getByte(); + var code = (oldByte << 8) | newByte; + // Image and tile size (SIZ) + if (code === 0xFF51) { + stream.skip(4); + var Xsiz = stream.getInt32() >>> 0; // Byte 4 + var Ysiz = stream.getInt32() >>> 0; // Byte 8 + var XOsiz = stream.getInt32() >>> 0; // Byte 12 + var YOsiz = stream.getInt32() >>> 0; // Byte 16 + stream.skip(16); + var Csiz = stream.getUint16(); // Byte 36 + this.width = Xsiz - XOsiz; + this.height = Ysiz - YOsiz; + this.componentsCount = Csiz; + // Results are always returned as Uint8Arrays + this.bitsPerComponent = 8; + return; + } + } + throw new Error('JPX Error: No size marker found in JPX stream'); + }, + parseCodestream: function JpxImage_parseCodestream(data, start, end) { + var context = {}; + try { + var doNotRecover = false; + var position = start; + while (position + 1 < end) { + var code = readUint16(data, position); + position += 2; + + var length = 0, j, sqcd, spqcds, spqcdSize, scalarExpounded, tile; + switch (code) { + case 0xFF4F: // Start of codestream (SOC) + context.mainHeader = true; + break; + case 0xFFD9: // End of codestream (EOC) + break; + case 0xFF51: // Image and tile size (SIZ) + length = readUint16(data, position); + var siz = {}; + siz.Xsiz = readUint32(data, position + 4); + siz.Ysiz = readUint32(data, position + 8); + siz.XOsiz = readUint32(data, position + 12); + siz.YOsiz = readUint32(data, position + 16); + siz.XTsiz = readUint32(data, position + 20); + siz.YTsiz = readUint32(data, position + 24); + siz.XTOsiz = readUint32(data, position + 28); + siz.YTOsiz = readUint32(data, position + 32); + var componentsCount = readUint16(data, position + 36); + siz.Csiz = componentsCount; + var components = []; + j = position + 38; + for (var i = 0; i < componentsCount; i++) { + var component = { + precision: (data[j] & 0x7F) + 1, + isSigned: !!(data[j] & 0x80), + XRsiz: data[j + 1], + YRsiz: data[j + 1] + }; + calculateComponentDimensions(component, siz); + components.push(component); + } + context.SIZ = siz; + context.components = components; + calculateTileGrids(context, components); + context.QCC = []; + context.COC = []; + break; + case 0xFF5C: // Quantization default (QCD) + length = readUint16(data, position); + var qcd = {}; + j = position + 2; + sqcd = data[j++]; + switch (sqcd & 0x1F) { + case 0: + spqcdSize = 8; + scalarExpounded = true; + break; + case 1: + spqcdSize = 16; + scalarExpounded = false; + break; + case 2: + spqcdSize = 16; + scalarExpounded = true; + break; + default: + throw new Error('JPX Error: Invalid SQcd value ' + sqcd); + } + qcd.noQuantization = (spqcdSize === 8); + qcd.scalarExpounded = scalarExpounded; + qcd.guardBits = sqcd >> 5; + spqcds = []; + while (j < length + position) { + var spqcd = {}; + if (spqcdSize === 8) { + spqcd.epsilon = data[j++] >> 3; + spqcd.mu = 0; + } else { + spqcd.epsilon = data[j] >> 3; + spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1]; + j += 2; + } + spqcds.push(spqcd); + } + qcd.SPqcds = spqcds; + if (context.mainHeader) { + context.QCD = qcd; + } else { + context.currentTile.QCD = qcd; + context.currentTile.QCC = []; + } + break; + case 0xFF5D: // Quantization component (QCC) + length = readUint16(data, position); + var qcc = {}; + j = position + 2; + var cqcc; + if (context.SIZ.Csiz < 257) { + cqcc = data[j++]; + } else { + cqcc = readUint16(data, j); + j += 2; + } + sqcd = data[j++]; + switch (sqcd & 0x1F) { + case 0: + spqcdSize = 8; + scalarExpounded = true; + break; + case 1: + spqcdSize = 16; + scalarExpounded = false; + break; + case 2: + spqcdSize = 16; + scalarExpounded = true; + break; + default: + throw new Error('JPX Error: Invalid SQcd value ' + sqcd); + } + qcc.noQuantization = (spqcdSize === 8); + qcc.scalarExpounded = scalarExpounded; + qcc.guardBits = sqcd >> 5; + spqcds = []; + while (j < (length + position)) { + spqcd = {}; + if (spqcdSize === 8) { + spqcd.epsilon = data[j++] >> 3; + spqcd.mu = 0; + } else { + spqcd.epsilon = data[j] >> 3; + spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1]; + j += 2; + } + spqcds.push(spqcd); + } + qcc.SPqcds = spqcds; + if (context.mainHeader) { + context.QCC[cqcc] = qcc; + } else { + context.currentTile.QCC[cqcc] = qcc; + } + break; + case 0xFF52: // Coding style default (COD) + length = readUint16(data, position); + var cod = {}; + j = position + 2; + var scod = data[j++]; + cod.entropyCoderWithCustomPrecincts = !!(scod & 1); + cod.sopMarkerUsed = !!(scod & 2); + cod.ephMarkerUsed = !!(scod & 4); + cod.progressionOrder = data[j++]; + cod.layersCount = readUint16(data, j); + j += 2; + cod.multipleComponentTransform = data[j++]; + + cod.decompositionLevelsCount = data[j++]; + cod.xcb = (data[j++] & 0xF) + 2; + cod.ycb = (data[j++] & 0xF) + 2; + var blockStyle = data[j++]; + cod.selectiveArithmeticCodingBypass = !!(blockStyle & 1); + cod.resetContextProbabilities = !!(blockStyle & 2); + cod.terminationOnEachCodingPass = !!(blockStyle & 4); + cod.verticalyStripe = !!(blockStyle & 8); + cod.predictableTermination = !!(blockStyle & 16); + cod.segmentationSymbolUsed = !!(blockStyle & 32); + cod.reversibleTransformation = data[j++]; + if (cod.entropyCoderWithCustomPrecincts) { + var precinctsSizes = []; + while (j < length + position) { + var precinctsSize = data[j++]; + precinctsSizes.push({ + PPx: precinctsSize & 0xF, + PPy: precinctsSize >> 4 + }); + } + cod.precinctsSizes = precinctsSizes; + } + var unsupported = []; + if (cod.selectiveArithmeticCodingBypass) { + unsupported.push('selectiveArithmeticCodingBypass'); + } + if (cod.resetContextProbabilities) { + unsupported.push('resetContextProbabilities'); + } + if (cod.terminationOnEachCodingPass) { + unsupported.push('terminationOnEachCodingPass'); + } + if (cod.verticalyStripe) { + unsupported.push('verticalyStripe'); + } + if (cod.predictableTermination) { + unsupported.push('predictableTermination'); + } + if (unsupported.length > 0) { + doNotRecover = true; + throw new Error('JPX Error: Unsupported COD options (' + + unsupported.join(', ') + ')'); + } + if (context.mainHeader) { + context.COD = cod; + } else { + context.currentTile.COD = cod; + context.currentTile.COC = []; + } + break; + case 0xFF90: // Start of tile-part (SOT) + length = readUint16(data, position); + tile = {}; + tile.index = readUint16(data, position + 2); + tile.length = readUint32(data, position + 4); + tile.dataEnd = tile.length + position - 2; + tile.partIndex = data[position + 8]; + tile.partsCount = data[position + 9]; + + context.mainHeader = false; + if (tile.partIndex === 0) { + // reset component specific settings + tile.COD = context.COD; + tile.COC = context.COC.slice(0); // clone of the global COC + tile.QCD = context.QCD; + tile.QCC = context.QCC.slice(0); // clone of the global COC + } + context.currentTile = tile; + break; + case 0xFF93: // Start of data (SOD) + tile = context.currentTile; + if (tile.partIndex === 0) { + initializeTile(context, tile.index); + buildPackets(context); + } + + // moving to the end of the data + length = tile.dataEnd - position; + parseTilePackets(context, data, position, length); + break; + case 0xFF55: // Tile-part lengths, main header (TLM) + case 0xFF57: // Packet length, main header (PLM) + case 0xFF58: // Packet length, tile-part header (PLT) + case 0xFF64: // Comment (COM) + length = readUint16(data, position); + // skipping content + break; + case 0xFF53: // Coding style component (COC) + throw new Error('JPX Error: Codestream code 0xFF53 (COC) is ' + + 'not implemented'); + default: + throw new Error('JPX Error: Unknown codestream code: ' + + code.toString(16)); + } + position += length; + } + } catch (e) { + if (doNotRecover || this.failOnCorruptedImage) { + throw e; + } else { + warn('Trying to recover from ' + e.message); + } + } + this.tiles = transformComponents(context); + this.width = context.SIZ.Xsiz - context.SIZ.XOsiz; + this.height = context.SIZ.Ysiz - context.SIZ.YOsiz; + this.componentsCount = context.SIZ.Csiz; + } + }; + function calculateComponentDimensions(component, siz) { + // Section B.2 Component mapping + component.x0 = Math.ceil(siz.XOsiz / component.XRsiz); + component.x1 = Math.ceil(siz.Xsiz / component.XRsiz); + component.y0 = Math.ceil(siz.YOsiz / component.YRsiz); + component.y1 = Math.ceil(siz.Ysiz / component.YRsiz); + component.width = component.x1 - component.x0; + component.height = component.y1 - component.y0; + } + function calculateTileGrids(context, components) { + var siz = context.SIZ; + // Section B.3 Division into tile and tile-components + var tile, tiles = []; + var numXtiles = Math.ceil((siz.Xsiz - siz.XTOsiz) / siz.XTsiz); + var numYtiles = Math.ceil((siz.Ysiz - siz.YTOsiz) / siz.YTsiz); + for (var q = 0; q < numYtiles; q++) { + for (var p = 0; p < numXtiles; p++) { + tile = {}; + tile.tx0 = Math.max(siz.XTOsiz + p * siz.XTsiz, siz.XOsiz); + tile.ty0 = Math.max(siz.YTOsiz + q * siz.YTsiz, siz.YOsiz); + tile.tx1 = Math.min(siz.XTOsiz + (p + 1) * siz.XTsiz, siz.Xsiz); + tile.ty1 = Math.min(siz.YTOsiz + (q + 1) * siz.YTsiz, siz.Ysiz); + tile.width = tile.tx1 - tile.tx0; + tile.height = tile.ty1 - tile.ty0; + tile.components = []; + tiles.push(tile); + } + } + context.tiles = tiles; + + var componentsCount = siz.Csiz; + for (var i = 0, ii = componentsCount; i < ii; i++) { + var component = components[i]; + for (var j = 0, jj = tiles.length; j < jj; j++) { + var tileComponent = {}; + tile = tiles[j]; + tileComponent.tcx0 = Math.ceil(tile.tx0 / component.XRsiz); + tileComponent.tcy0 = Math.ceil(tile.ty0 / component.YRsiz); + tileComponent.tcx1 = Math.ceil(tile.tx1 / component.XRsiz); + tileComponent.tcy1 = Math.ceil(tile.ty1 / component.YRsiz); + tileComponent.width = tileComponent.tcx1 - tileComponent.tcx0; + tileComponent.height = tileComponent.tcy1 - tileComponent.tcy0; + tile.components[i] = tileComponent; + } + } + } + function getBlocksDimensions(context, component, r) { + var codOrCoc = component.codingStyleParameters; + var result = {}; + if (!codOrCoc.entropyCoderWithCustomPrecincts) { + result.PPx = 15; + result.PPy = 15; + } else { + result.PPx = codOrCoc.precinctsSizes[r].PPx; + result.PPy = codOrCoc.precinctsSizes[r].PPy; + } + // calculate codeblock size as described in section B.7 + result.xcb_ = (r > 0 ? Math.min(codOrCoc.xcb, result.PPx - 1) : + Math.min(codOrCoc.xcb, result.PPx)); + result.ycb_ = (r > 0 ? Math.min(codOrCoc.ycb, result.PPy - 1) : + Math.min(codOrCoc.ycb, result.PPy)); + return result; + } + function buildPrecincts(context, resolution, dimensions) { + // Section B.6 Division resolution to precincts + var precinctWidth = 1 << dimensions.PPx; + var precinctHeight = 1 << dimensions.PPy; + // Jasper introduces codeblock groups for mapping each subband codeblocks + // to precincts. Precinct partition divides a resolution according to width + // and height parameters. The subband that belongs to the resolution level + // has a different size than the level, unless it is the zero resolution. + + // From Jasper documentation: jpeg2000.pdf, section K: Tier-2 coding: + // The precinct partitioning for a particular subband is derived from a + // partitioning of its parent LL band (i.e., the LL band at the next higher + // resolution level)... The LL band associated with each resolution level is + // divided into precincts... Each of the resulting precinct regions is then + // mapped into its child subbands (if any) at the next lower resolution + // level. This is accomplished by using the coordinate transformation + // (u, v) = (ceil(x/2), ceil(y/2)) where (x, y) and (u, v) are the + // coordinates of a point in the LL band and child subband, respectively. + var isZeroRes = resolution.resLevel === 0; + var precinctWidthInSubband = 1 << (dimensions.PPx + (isZeroRes ? 0 : -1)); + var precinctHeightInSubband = 1 << (dimensions.PPy + (isZeroRes ? 0 : -1)); + var numprecinctswide = (resolution.trx1 > resolution.trx0 ? + Math.ceil(resolution.trx1 / precinctWidth) - + Math.floor(resolution.trx0 / precinctWidth) : 0); + var numprecinctshigh = (resolution.try1 > resolution.try0 ? + Math.ceil(resolution.try1 / precinctHeight) - + Math.floor(resolution.try0 / precinctHeight) : 0); + var numprecincts = numprecinctswide * numprecinctshigh; + + resolution.precinctParameters = { + precinctWidth: precinctWidth, + precinctHeight: precinctHeight, + numprecinctswide: numprecinctswide, + numprecinctshigh: numprecinctshigh, + numprecincts: numprecincts, + precinctWidthInSubband: precinctWidthInSubband, + precinctHeightInSubband: precinctHeightInSubband + }; + } + function buildCodeblocks(context, subband, dimensions) { + // Section B.7 Division sub-band into code-blocks + var xcb_ = dimensions.xcb_; + var ycb_ = dimensions.ycb_; + var codeblockWidth = 1 << xcb_; + var codeblockHeight = 1 << ycb_; + var cbx0 = subband.tbx0 >> xcb_; + var cby0 = subband.tby0 >> ycb_; + var cbx1 = (subband.tbx1 + codeblockWidth - 1) >> xcb_; + var cby1 = (subband.tby1 + codeblockHeight - 1) >> ycb_; + var precinctParameters = subband.resolution.precinctParameters; + var codeblocks = []; + var precincts = []; + var i, j, codeblock, precinctNumber; + for (j = cby0; j < cby1; j++) { + for (i = cbx0; i < cbx1; i++) { + codeblock = { + cbx: i, + cby: j, + tbx0: codeblockWidth * i, + tby0: codeblockHeight * j, + tbx1: codeblockWidth * (i + 1), + tby1: codeblockHeight * (j + 1) + }; + + codeblock.tbx0_ = Math.max(subband.tbx0, codeblock.tbx0); + codeblock.tby0_ = Math.max(subband.tby0, codeblock.tby0); + codeblock.tbx1_ = Math.min(subband.tbx1, codeblock.tbx1); + codeblock.tby1_ = Math.min(subband.tby1, codeblock.tby1); + + // Calculate precinct number for this codeblock, codeblock position + // should be relative to its subband, use actual dimension and position + // See comment about codeblock group width and height + var pi = Math.floor((codeblock.tbx0_ - subband.tbx0) / + precinctParameters.precinctWidthInSubband); + var pj = Math.floor((codeblock.tby0_ - subband.tby0) / + precinctParameters.precinctHeightInSubband); + precinctNumber = pi + (pj * precinctParameters.numprecinctswide); + + codeblock.precinctNumber = precinctNumber; + codeblock.subbandType = subband.type; + codeblock.Lblock = 3; + + if (codeblock.tbx1_ <= codeblock.tbx0_ || + codeblock.tby1_ <= codeblock.tby0_) { + continue; + } + codeblocks.push(codeblock); + // building precinct for the sub-band + var precinct = precincts[precinctNumber]; + if (precinct !== undefined) { + if (i < precinct.cbxMin) { + precinct.cbxMin = i; + } else if (i > precinct.cbxMax) { + precinct.cbxMax = i; + } + if (j < precinct.cbyMin) { + precinct.cbxMin = j; + } else if (j > precinct.cbyMax) { + precinct.cbyMax = j; + } + } else { + precincts[precinctNumber] = precinct = { + cbxMin: i, + cbyMin: j, + cbxMax: i, + cbyMax: j + }; + } + codeblock.precinct = precinct; + } + } + subband.codeblockParameters = { + codeblockWidth: xcb_, + codeblockHeight: ycb_, + numcodeblockwide: cbx1 - cbx0 + 1, + numcodeblockhigh: cby1 - cby0 + 1 + }; + subband.codeblocks = codeblocks; + subband.precincts = precincts; + } + function createPacket(resolution, precinctNumber, layerNumber) { + var precinctCodeblocks = []; + // Section B.10.8 Order of info in packet + var subbands = resolution.subbands; + // sub-bands already ordered in 'LL', 'HL', 'LH', and 'HH' sequence + for (var i = 0, ii = subbands.length; i < ii; i++) { + var subband = subbands[i]; + var codeblocks = subband.codeblocks; + for (var j = 0, jj = codeblocks.length; j < jj; j++) { + var codeblock = codeblocks[j]; + if (codeblock.precinctNumber !== precinctNumber) { + continue; + } + precinctCodeblocks.push(codeblock); + } + } + return { + layerNumber: layerNumber, + codeblocks: precinctCodeblocks + }; + } + function LayerResolutionComponentPositionIterator(context) { + var siz = context.SIZ; + var tileIndex = context.currentTile.index; + var tile = context.tiles[tileIndex]; + var layersCount = tile.codingStyleDefaultParameters.layersCount; + var componentsCount = siz.Csiz; + var maxDecompositionLevelsCount = 0; + for (var q = 0; q < componentsCount; q++) { + maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, + tile.components[q].codingStyleParameters.decompositionLevelsCount); + } + + var l = 0, r = 0, i = 0, k = 0; + + this.nextPacket = function JpxImage_nextPacket() { + // Section B.12.1.1 Layer-resolution-component-position + for (; l < layersCount; l++) { + for (; r <= maxDecompositionLevelsCount; r++) { + for (; i < componentsCount; i++) { + var component = tile.components[i]; + if (r > component.codingStyleParameters.decompositionLevelsCount) { + continue; + } + + var resolution = component.resolutions[r]; + var numprecincts = resolution.precinctParameters.numprecincts; + for (; k < numprecincts;) { + var packet = createPacket(resolution, k, l); + k++; + return packet; + } + k = 0; + } + i = 0; + } + r = 0; + } + throw new Error('JPX Error: Out of packets'); + }; + } + function ResolutionLayerComponentPositionIterator(context) { + var siz = context.SIZ; + var tileIndex = context.currentTile.index; + var tile = context.tiles[tileIndex]; + var layersCount = tile.codingStyleDefaultParameters.layersCount; + var componentsCount = siz.Csiz; + var maxDecompositionLevelsCount = 0; + for (var q = 0; q < componentsCount; q++) { + maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, + tile.components[q].codingStyleParameters.decompositionLevelsCount); + } + + var r = 0, l = 0, i = 0, k = 0; + + this.nextPacket = function JpxImage_nextPacket() { + // Section B.12.1.2 Resolution-layer-component-position + for (; r <= maxDecompositionLevelsCount; r++) { + for (; l < layersCount; l++) { + for (; i < componentsCount; i++) { + var component = tile.components[i]; + if (r > component.codingStyleParameters.decompositionLevelsCount) { + continue; + } + + var resolution = component.resolutions[r]; + var numprecincts = resolution.precinctParameters.numprecincts; + for (; k < numprecincts;) { + var packet = createPacket(resolution, k, l); + k++; + return packet; + } + k = 0; + } + i = 0; + } + l = 0; + } + throw new Error('JPX Error: Out of packets'); + }; + } + function ResolutionPositionComponentLayerIterator(context) { + var siz = context.SIZ; + var tileIndex = context.currentTile.index; + var tile = context.tiles[tileIndex]; + var layersCount = tile.codingStyleDefaultParameters.layersCount; + var componentsCount = siz.Csiz; + var l, r, c, p; + var maxDecompositionLevelsCount = 0; + for (c = 0; c < componentsCount; c++) { + var component = tile.components[c]; + maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, + component.codingStyleParameters.decompositionLevelsCount); + } + var maxNumPrecinctsInLevel = new Int32Array( + maxDecompositionLevelsCount + 1); + for (r = 0; r <= maxDecompositionLevelsCount; ++r) { + var maxNumPrecincts = 0; + for (c = 0; c < componentsCount; ++c) { + var resolutions = tile.components[c].resolutions; + if (r < resolutions.length) { + maxNumPrecincts = Math.max(maxNumPrecincts, + resolutions[r].precinctParameters.numprecincts); + } + } + maxNumPrecinctsInLevel[r] = maxNumPrecincts; + } + l = 0; + r = 0; + c = 0; + p = 0; + + this.nextPacket = function JpxImage_nextPacket() { + // Section B.12.1.3 Resolution-position-component-layer + for (; r <= maxDecompositionLevelsCount; r++) { + for (; p < maxNumPrecinctsInLevel[r]; p++) { + for (; c < componentsCount; c++) { + var component = tile.components[c]; + if (r > component.codingStyleParameters.decompositionLevelsCount) { + continue; + } + var resolution = component.resolutions[r]; + var numprecincts = resolution.precinctParameters.numprecincts; + if (p >= numprecincts) { + continue; + } + for (; l < layersCount;) { + var packet = createPacket(resolution, p, l); + l++; + return packet; + } + l = 0; + } + c = 0; + } + p = 0; + } + throw new Error('JPX Error: Out of packets'); + }; + } + function PositionComponentResolutionLayerIterator(context) { + var siz = context.SIZ; + var tileIndex = context.currentTile.index; + var tile = context.tiles[tileIndex]; + var layersCount = tile.codingStyleDefaultParameters.layersCount; + var componentsCount = siz.Csiz; + var precinctsSizes = getPrecinctSizesInImageScale(tile); + var precinctsIterationSizes = precinctsSizes; + var l = 0, r = 0, c = 0, px = 0, py = 0; + + this.nextPacket = function JpxImage_nextPacket() { + // Section B.12.1.4 Position-component-resolution-layer + for (; py < precinctsIterationSizes.maxNumHigh; py++) { + for (; px < precinctsIterationSizes.maxNumWide; px++) { + for (; c < componentsCount; c++) { + var component = tile.components[c]; + var decompositionLevelsCount = + component.codingStyleParameters.decompositionLevelsCount; + for (; r <= decompositionLevelsCount; r++) { + var resolution = component.resolutions[r]; + var sizeInImageScale = + precinctsSizes.components[c].resolutions[r]; + var k = getPrecinctIndexIfExist( + px, + py, + sizeInImageScale, + precinctsIterationSizes, + resolution); + if (k === null) { + continue; + } + for (; l < layersCount;) { + var packet = createPacket(resolution, k, l); + l++; + return packet; + } + l = 0; + } + r = 0; + } + c = 0; + } + px = 0; + } + throw new Error('JPX Error: Out of packets'); + }; + } + function ComponentPositionResolutionLayerIterator(context) { + var siz = context.SIZ; + var tileIndex = context.currentTile.index; + var tile = context.tiles[tileIndex]; + var layersCount = tile.codingStyleDefaultParameters.layersCount; + var componentsCount = siz.Csiz; + var precinctsSizes = getPrecinctSizesInImageScale(tile); + var l = 0, r = 0, c = 0, px = 0, py = 0; + + this.nextPacket = function JpxImage_nextPacket() { + // Section B.12.1.5 Component-position-resolution-layer + for (; c < componentsCount; ++c) { + var component = tile.components[c]; + var precinctsIterationSizes = precinctsSizes.components[c]; + var decompositionLevelsCount = + component.codingStyleParameters.decompositionLevelsCount; + for (; py < precinctsIterationSizes.maxNumHigh; py++) { + for (; px < precinctsIterationSizes.maxNumWide; px++) { + for (; r <= decompositionLevelsCount; r++) { + var resolution = component.resolutions[r]; + var sizeInImageScale = precinctsIterationSizes.resolutions[r]; + var k = getPrecinctIndexIfExist( + px, + py, + sizeInImageScale, + precinctsIterationSizes, + resolution); + if (k === null) { + continue; + } + for (; l < layersCount;) { + var packet = createPacket(resolution, k, l); + l++; + return packet; + } + l = 0; + } + r = 0; + } + px = 0; + } + py = 0; + } + throw new Error('JPX Error: Out of packets'); + }; + } + function getPrecinctIndexIfExist( + pxIndex, pyIndex, sizeInImageScale, precinctIterationSizes, resolution) { + var posX = pxIndex * precinctIterationSizes.minWidth; + var posY = pyIndex * precinctIterationSizes.minHeight; + if (posX % sizeInImageScale.width !== 0 || + posY % sizeInImageScale.height !== 0) { + return null; + } + var startPrecinctRowIndex = + (posY / sizeInImageScale.width) * + resolution.precinctParameters.numprecinctswide; + return (posX / sizeInImageScale.height) + startPrecinctRowIndex; + } + function getPrecinctSizesInImageScale(tile) { + var componentsCount = tile.components.length; + var minWidth = Number.MAX_VALUE; + var minHeight = Number.MAX_VALUE; + var maxNumWide = 0; + var maxNumHigh = 0; + var sizePerComponent = new Array(componentsCount); + for (var c = 0; c < componentsCount; c++) { + var component = tile.components[c]; + var decompositionLevelsCount = + component.codingStyleParameters.decompositionLevelsCount; + var sizePerResolution = new Array(decompositionLevelsCount + 1); + var minWidthCurrentComponent = Number.MAX_VALUE; + var minHeightCurrentComponent = Number.MAX_VALUE; + var maxNumWideCurrentComponent = 0; + var maxNumHighCurrentComponent = 0; + var scale = 1; + for (var r = decompositionLevelsCount; r >= 0; --r) { + var resolution = component.resolutions[r]; + var widthCurrentResolution = + scale * resolution.precinctParameters.precinctWidth; + var heightCurrentResolution = + scale * resolution.precinctParameters.precinctHeight; + minWidthCurrentComponent = Math.min( + minWidthCurrentComponent, + widthCurrentResolution); + minHeightCurrentComponent = Math.min( + minHeightCurrentComponent, + heightCurrentResolution); + maxNumWideCurrentComponent = Math.max(maxNumWideCurrentComponent, + resolution.precinctParameters.numprecinctswide); + maxNumHighCurrentComponent = Math.max(maxNumHighCurrentComponent, + resolution.precinctParameters.numprecinctshigh); + sizePerResolution[r] = { + width: widthCurrentResolution, + height: heightCurrentResolution + }; + scale <<= 1; + } + minWidth = Math.min(minWidth, minWidthCurrentComponent); + minHeight = Math.min(minHeight, minHeightCurrentComponent); + maxNumWide = Math.max(maxNumWide, maxNumWideCurrentComponent); + maxNumHigh = Math.max(maxNumHigh, maxNumHighCurrentComponent); + sizePerComponent[c] = { + resolutions: sizePerResolution, + minWidth: minWidthCurrentComponent, + minHeight: minHeightCurrentComponent, + maxNumWide: maxNumWideCurrentComponent, + maxNumHigh: maxNumHighCurrentComponent + }; + } + return { + components: sizePerComponent, + minWidth: minWidth, + minHeight: minHeight, + maxNumWide: maxNumWide, + maxNumHigh: maxNumHigh + }; + } + function buildPackets(context) { + var siz = context.SIZ; + var tileIndex = context.currentTile.index; + var tile = context.tiles[tileIndex]; + var componentsCount = siz.Csiz; + // Creating resolutions and sub-bands for each component + for (var c = 0; c < componentsCount; c++) { + var component = tile.components[c]; + var decompositionLevelsCount = + component.codingStyleParameters.decompositionLevelsCount; + // Section B.5 Resolution levels and sub-bands + var resolutions = []; + var subbands = []; + for (var r = 0; r <= decompositionLevelsCount; r++) { + var blocksDimensions = getBlocksDimensions(context, component, r); + var resolution = {}; + var scale = 1 << (decompositionLevelsCount - r); + resolution.trx0 = Math.ceil(component.tcx0 / scale); + resolution.try0 = Math.ceil(component.tcy0 / scale); + resolution.trx1 = Math.ceil(component.tcx1 / scale); + resolution.try1 = Math.ceil(component.tcy1 / scale); + resolution.resLevel = r; + buildPrecincts(context, resolution, blocksDimensions); + resolutions.push(resolution); + + var subband; + if (r === 0) { + // one sub-band (LL) with last decomposition + subband = {}; + subband.type = 'LL'; + subband.tbx0 = Math.ceil(component.tcx0 / scale); + subband.tby0 = Math.ceil(component.tcy0 / scale); + subband.tbx1 = Math.ceil(component.tcx1 / scale); + subband.tby1 = Math.ceil(component.tcy1 / scale); + subband.resolution = resolution; + buildCodeblocks(context, subband, blocksDimensions); + subbands.push(subband); + resolution.subbands = [subband]; + } else { + var bscale = 1 << (decompositionLevelsCount - r + 1); + var resolutionSubbands = []; + // three sub-bands (HL, LH and HH) with rest of decompositions + subband = {}; + subband.type = 'HL'; + subband.tbx0 = Math.ceil(component.tcx0 / bscale - 0.5); + subband.tby0 = Math.ceil(component.tcy0 / bscale); + subband.tbx1 = Math.ceil(component.tcx1 / bscale - 0.5); + subband.tby1 = Math.ceil(component.tcy1 / bscale); + subband.resolution = resolution; + buildCodeblocks(context, subband, blocksDimensions); + subbands.push(subband); + resolutionSubbands.push(subband); + + subband = {}; + subband.type = 'LH'; + subband.tbx0 = Math.ceil(component.tcx0 / bscale); + subband.tby0 = Math.ceil(component.tcy0 / bscale - 0.5); + subband.tbx1 = Math.ceil(component.tcx1 / bscale); + subband.tby1 = Math.ceil(component.tcy1 / bscale - 0.5); + subband.resolution = resolution; + buildCodeblocks(context, subband, blocksDimensions); + subbands.push(subband); + resolutionSubbands.push(subband); + + subband = {}; + subband.type = 'HH'; + subband.tbx0 = Math.ceil(component.tcx0 / bscale - 0.5); + subband.tby0 = Math.ceil(component.tcy0 / bscale - 0.5); + subband.tbx1 = Math.ceil(component.tcx1 / bscale - 0.5); + subband.tby1 = Math.ceil(component.tcy1 / bscale - 0.5); + subband.resolution = resolution; + buildCodeblocks(context, subband, blocksDimensions); + subbands.push(subband); + resolutionSubbands.push(subband); + + resolution.subbands = resolutionSubbands; + } + } + component.resolutions = resolutions; + component.subbands = subbands; + } + // Generate the packets sequence + var progressionOrder = tile.codingStyleDefaultParameters.progressionOrder; + switch (progressionOrder) { + case 0: + tile.packetsIterator = + new LayerResolutionComponentPositionIterator(context); + break; + case 1: + tile.packetsIterator = + new ResolutionLayerComponentPositionIterator(context); + break; + case 2: + tile.packetsIterator = + new ResolutionPositionComponentLayerIterator(context); + break; + case 3: + tile.packetsIterator = + new PositionComponentResolutionLayerIterator(context); + break; + case 4: + tile.packetsIterator = + new ComponentPositionResolutionLayerIterator(context); + break; + default: + throw new Error('JPX Error: Unsupported progression order ' + + progressionOrder); + } + } + function parseTilePackets(context, data, offset, dataLength) { + var position = 0; + var buffer, bufferSize = 0, skipNextBit = false; + function readBits(count) { + while (bufferSize < count) { + var b = data[offset + position]; + position++; + if (skipNextBit) { + buffer = (buffer << 7) | b; + bufferSize += 7; + skipNextBit = false; + } else { + buffer = (buffer << 8) | b; + bufferSize += 8; + } + if (b === 0xFF) { + skipNextBit = true; + } + } + bufferSize -= count; + return (buffer >>> bufferSize) & ((1 << count) - 1); + } + function skipMarkerIfEqual(value) { + if (data[offset + position - 1] === 0xFF && + data[offset + position] === value) { + skipBytes(1); + return true; + } else if (data[offset + position] === 0xFF && + data[offset + position + 1] === value) { + skipBytes(2); + return true; + } + return false; + } + function skipBytes(count) { + position += count; + } + function alignToByte() { + bufferSize = 0; + if (skipNextBit) { + position++; + skipNextBit = false; + } + } + function readCodingpasses() { + if (readBits(1) === 0) { + return 1; + } + if (readBits(1) === 0) { + return 2; + } + var value = readBits(2); + if (value < 3) { + return value + 3; + } + value = readBits(5); + if (value < 31) { + return value + 6; + } + value = readBits(7); + return value + 37; + } + var tileIndex = context.currentTile.index; + var tile = context.tiles[tileIndex]; + var sopMarkerUsed = context.COD.sopMarkerUsed; + var ephMarkerUsed = context.COD.ephMarkerUsed; + var packetsIterator = tile.packetsIterator; + while (position < dataLength) { + alignToByte(); + if (sopMarkerUsed && skipMarkerIfEqual(0x91)) { + // Skip also marker segment length and packet sequence ID + skipBytes(4); + } + var packet = packetsIterator.nextPacket(); + if (!readBits(1)) { + continue; + } + var layerNumber = packet.layerNumber; + var queue = [], codeblock; + for (var i = 0, ii = packet.codeblocks.length; i < ii; i++) { + codeblock = packet.codeblocks[i]; + var precinct = codeblock.precinct; + var codeblockColumn = codeblock.cbx - precinct.cbxMin; + var codeblockRow = codeblock.cby - precinct.cbyMin; + var codeblockIncluded = false; + var firstTimeInclusion = false; + var valueReady; + if (codeblock['included'] !== undefined) { + codeblockIncluded = !!readBits(1); + } else { + // reading inclusion tree + precinct = codeblock.precinct; + var inclusionTree, zeroBitPlanesTree; + if (precinct['inclusionTree'] !== undefined) { + inclusionTree = precinct.inclusionTree; + } else { + // building inclusion and zero bit-planes trees + var width = precinct.cbxMax - precinct.cbxMin + 1; + var height = precinct.cbyMax - precinct.cbyMin + 1; + inclusionTree = new InclusionTree(width, height, layerNumber); + zeroBitPlanesTree = new TagTree(width, height); + precinct.inclusionTree = inclusionTree; + precinct.zeroBitPlanesTree = zeroBitPlanesTree; + } + + if (inclusionTree.reset(codeblockColumn, codeblockRow, layerNumber)) { + while (true) { + if (readBits(1)) { + valueReady = !inclusionTree.nextLevel(); + if (valueReady) { + codeblock.included = true; + codeblockIncluded = firstTimeInclusion = true; + break; + } + } else { + inclusionTree.incrementValue(layerNumber); + break; + } + } + } + } + if (!codeblockIncluded) { + continue; + } + if (firstTimeInclusion) { + zeroBitPlanesTree = precinct.zeroBitPlanesTree; + zeroBitPlanesTree.reset(codeblockColumn, codeblockRow); + while (true) { + if (readBits(1)) { + valueReady = !zeroBitPlanesTree.nextLevel(); + if (valueReady) { + break; + } } else { - info('Bad value in document info for "' + key + '"'); + zeroBitPlanesTree.incrementValue(); + } + } + codeblock.zeroBitPlanes = zeroBitPlanesTree.value; + } + var codingpasses = readCodingpasses(); + while (readBits(1)) { + codeblock.Lblock++; + } + var codingpassesLog2 = log2(codingpasses); + // rounding down log2 + var bits = ((codingpasses < (1 << codingpassesLog2)) ? + codingpassesLog2 - 1 : codingpassesLog2) + codeblock.Lblock; + var codedDataLength = readBits(bits); + queue.push({ + codeblock: codeblock, + codingpasses: codingpasses, + dataLength: codedDataLength + }); + } + alignToByte(); + if (ephMarkerUsed) { + skipMarkerIfEqual(0x92); + } + while (queue.length > 0) { + var packetItem = queue.shift(); + codeblock = packetItem.codeblock; + if (codeblock['data'] === undefined) { + codeblock.data = []; + } + codeblock.data.push({ + data: data, + start: offset + position, + end: offset + position + packetItem.dataLength, + codingpasses: packetItem.codingpasses + }); + position += packetItem.dataLength; + } + } + return position; + } + function copyCoefficients(coefficients, levelWidth, levelHeight, subband, + delta, mb, reversible, segmentationSymbolUsed) { + var x0 = subband.tbx0; + var y0 = subband.tby0; + var width = subband.tbx1 - subband.tbx0; + var codeblocks = subband.codeblocks; + var right = subband.type.charAt(0) === 'H' ? 1 : 0; + var bottom = subband.type.charAt(1) === 'H' ? levelWidth : 0; + + for (var i = 0, ii = codeblocks.length; i < ii; ++i) { + var codeblock = codeblocks[i]; + var blockWidth = codeblock.tbx1_ - codeblock.tbx0_; + var blockHeight = codeblock.tby1_ - codeblock.tby0_; + if (blockWidth === 0 || blockHeight === 0) { + continue; + } + if (codeblock['data'] === undefined) { + continue; + } + + var bitModel, currentCodingpassType; + bitModel = new BitModel(blockWidth, blockHeight, codeblock.subbandType, + codeblock.zeroBitPlanes, mb); + currentCodingpassType = 2; // first bit plane starts from cleanup + + // collect data + var data = codeblock.data, totalLength = 0, codingpasses = 0; + var j, jj, dataItem; + for (j = 0, jj = data.length; j < jj; j++) { + dataItem = data[j]; + totalLength += dataItem.end - dataItem.start; + codingpasses += dataItem.codingpasses; + } + var encodedData = new Uint8Array(totalLength); + var position = 0; + for (j = 0, jj = data.length; j < jj; j++) { + dataItem = data[j]; + var chunk = dataItem.data.subarray(dataItem.start, dataItem.end); + encodedData.set(chunk, position); + position += chunk.length; + } + // decoding the item + var decoder = new ArithmeticDecoder(encodedData, 0, totalLength); + bitModel.setDecoder(decoder); + + for (j = 0; j < codingpasses; j++) { + switch (currentCodingpassType) { + case 0: + bitModel.runSignificancePropogationPass(); + break; + case 1: + bitModel.runMagnitudeRefinementPass(); + break; + case 2: + bitModel.runCleanupPass(); + if (segmentationSymbolUsed) { + bitModel.checkSegmentationSymbol(); + } + break; + } + currentCodingpassType = (currentCodingpassType + 1) % 3; + } + + var offset = (codeblock.tbx0_ - x0) + (codeblock.tby0_ - y0) * width; + var sign = bitModel.coefficentsSign; + var magnitude = bitModel.coefficentsMagnitude; + var bitsDecoded = bitModel.bitsDecoded; + var magnitudeCorrection = reversible ? 0 : 0.5; + var k, n, nb; + position = 0; + // Do the interleaving of Section F.3.3 here, so we do not need + // to copy later. LL level is not interleaved, just copied. + var interleave = (subband.type !== 'LL'); + for (j = 0; j < blockHeight; j++) { + var row = (offset / width) | 0; // row in the non-interleaved subband + var levelOffset = 2 * row * (levelWidth - width) + right + bottom; + for (k = 0; k < blockWidth; k++) { + n = magnitude[position]; + if (n !== 0) { + n = (n + magnitudeCorrection) * delta; + if (sign[position] !== 0) { + n = -n; + } + nb = bitsDecoded[position]; + var pos = interleave ? (levelOffset + (offset << 1)) : offset; + if (reversible && (nb >= mb)) { + coefficients[pos] = n; + } else { + coefficients[pos] = n * (1 << (mb - nb)); + } + } + offset++; + position++; + } + offset += width - blockWidth; + } + } + } + function transformTile(context, tile, c) { + var component = tile.components[c]; + var codingStyleParameters = component.codingStyleParameters; + var quantizationParameters = component.quantizationParameters; + var decompositionLevelsCount = + codingStyleParameters.decompositionLevelsCount; + var spqcds = quantizationParameters.SPqcds; + var scalarExpounded = quantizationParameters.scalarExpounded; + var guardBits = quantizationParameters.guardBits; + var segmentationSymbolUsed = codingStyleParameters.segmentationSymbolUsed; + var precision = context.components[c].precision; + + var reversible = codingStyleParameters.reversibleTransformation; + var transform = (reversible ? new ReversibleTransform() : + new IrreversibleTransform()); + + var subbandCoefficients = []; + var b = 0; + for (var i = 0; i <= decompositionLevelsCount; i++) { + var resolution = component.resolutions[i]; + + var width = resolution.trx1 - resolution.trx0; + var height = resolution.try1 - resolution.try0; + // Allocate space for the whole sublevel. + var coefficients = new Float32Array(width * height); + + for (var j = 0, jj = resolution.subbands.length; j < jj; j++) { + var mu, epsilon; + if (!scalarExpounded) { + // formula E-5 + mu = spqcds[0].mu; + epsilon = spqcds[0].epsilon + (i > 0 ? 1 - i : 0); + } else { + mu = spqcds[b].mu; + epsilon = spqcds[b].epsilon; + b++; + } + + var subband = resolution.subbands[j]; + var gainLog2 = SubbandsGainLog2[subband.type]; + + // calulate quantization coefficient (Section E.1.1.1) + var delta = (reversible ? 1 : + Math.pow(2, precision + gainLog2 - epsilon) * (1 + mu / 2048)); + var mb = (guardBits + epsilon - 1); + + // In the first resolution level, copyCoefficients will fill the + // whole array with coefficients. In the succeding passes, + // copyCoefficients will consecutively fill in the values that belong + // to the interleaved positions of the HL, LH, and HH coefficients. + // The LL coefficients will then be interleaved in Transform.iterate(). + copyCoefficients(coefficients, width, height, subband, delta, mb, + reversible, segmentationSymbolUsed); + } + subbandCoefficients.push({ + width: width, + height: height, + items: coefficients + }); + } + + var result = transform.calculate(subbandCoefficients, + component.tcx0, component.tcy0); + return { + left: component.tcx0, + top: component.tcy0, + width: result.width, + height: result.height, + items: result.items + }; + } + function transformComponents(context) { + var siz = context.SIZ; + var components = context.components; + var componentsCount = siz.Csiz; + var resultImages = []; + for (var i = 0, ii = context.tiles.length; i < ii; i++) { + var tile = context.tiles[i]; + var transformedTiles = []; + var c; + for (c = 0; c < componentsCount; c++) { + transformedTiles[c] = transformTile(context, tile, c); + } + var tile0 = transformedTiles[0]; + var out = new Uint8Array(tile0.items.length * componentsCount); + var result = { + left: tile0.left, + top: tile0.top, + width: tile0.width, + height: tile0.height, + items: out + }; + + // Section G.2.2 Inverse multi component transform + var shift, offset, max, min, maxK; + var pos = 0, j, jj, y0, y1, y2, r, g, b, k, val; + if (tile.codingStyleDefaultParameters.multipleComponentTransform) { + var fourComponents = componentsCount === 4; + var y0items = transformedTiles[0].items; + var y1items = transformedTiles[1].items; + var y2items = transformedTiles[2].items; + var y3items = fourComponents ? transformedTiles[3].items : null; + + // HACK: The multiple component transform formulas below assume that + // all components have the same precision. With this in mind, we + // compute shift and offset only once. + shift = components[0].precision - 8; + offset = (128 << shift) + 0.5; + max = 255 * (1 << shift); + maxK = max * 0.5; + min = -maxK; + + var component0 = tile.components[0]; + var alpha01 = componentsCount - 3; + jj = y0items.length; + if (!component0.codingStyleParameters.reversibleTransformation) { + // inverse irreversible multiple component transform + for (j = 0; j < jj; j++, pos += alpha01) { + y0 = y0items[j] + offset; + y1 = y1items[j]; + y2 = y2items[j]; + r = y0 + 1.402 * y2; + g = y0 - 0.34413 * y1 - 0.71414 * y2; + b = y0 + 1.772 * y1; + out[pos++] = r <= 0 ? 0 : r >= max ? 255 : r >> shift; + out[pos++] = g <= 0 ? 0 : g >= max ? 255 : g >> shift; + out[pos++] = b <= 0 ? 0 : b >= max ? 255 : b >> shift; + } + } else { + // inverse reversible multiple component transform + for (j = 0; j < jj; j++, pos += alpha01) { + y0 = y0items[j] + offset; + y1 = y1items[j]; + y2 = y2items[j]; + g = y0 - ((y2 + y1) >> 2); + r = g + y2; + b = g + y1; + out[pos++] = r <= 0 ? 0 : r >= max ? 255 : r >> shift; + out[pos++] = g <= 0 ? 0 : g >= max ? 255 : g >> shift; + out[pos++] = b <= 0 ? 0 : b >= max ? 255 : b >> shift; + } + } + if (fourComponents) { + for (j = 0, pos = 3; j < jj; j++, pos += 4) { + k = y3items[j]; + out[pos] = k <= min ? 0 : k >= maxK ? 255 : (k + offset) >> shift; + } + } + } else { // no multi-component transform + for (c = 0; c < componentsCount; c++) { + var items = transformedTiles[c].items; + shift = components[c].precision - 8; + offset = (128 << shift) + 0.5; + max = (127.5 * (1 << shift)); + min = -max; + for (pos = c, j = 0, jj = items.length; j < jj; j++) { + val = items[j]; + out[pos] = val <= min ? 0 : + val >= max ? 255 : (val + offset) >> shift; + pos += componentsCount; + } + } + } + resultImages.push(result); + } + return resultImages; + } + function initializeTile(context, tileIndex) { + var siz = context.SIZ; + var componentsCount = siz.Csiz; + var tile = context.tiles[tileIndex]; + for (var c = 0; c < componentsCount; c++) { + var component = tile.components[c]; + var qcdOrQcc = (context.currentTile.QCC[c] !== undefined ? + context.currentTile.QCC[c] : context.currentTile.QCD); + component.quantizationParameters = qcdOrQcc; + var codOrCoc = (context.currentTile.COC[c] !== undefined ? + context.currentTile.COC[c] : context.currentTile.COD); + component.codingStyleParameters = codOrCoc; + } + tile.codingStyleDefaultParameters = context.currentTile.COD; + } + + // Section B.10.2 Tag trees + var TagTree = (function TagTreeClosure() { + function TagTree(width, height) { + var levelsLength = log2(Math.max(width, height)) + 1; + this.levels = []; + for (var i = 0; i < levelsLength; i++) { + var level = { + width: width, + height: height, + items: [] + }; + this.levels.push(level); + width = Math.ceil(width / 2); + height = Math.ceil(height / 2); + } + } + TagTree.prototype = { + reset: function TagTree_reset(i, j) { + var currentLevel = 0, value = 0, level; + while (currentLevel < this.levels.length) { + level = this.levels[currentLevel]; + var index = i + j * level.width; + if (level.items[index] !== undefined) { + value = level.items[index]; + break; + } + level.index = index; + i >>= 1; + j >>= 1; + currentLevel++; + } + currentLevel--; + level = this.levels[currentLevel]; + level.items[level.index] = value; + this.currentLevel = currentLevel; + delete this.value; + }, + incrementValue: function TagTree_incrementValue() { + var level = this.levels[this.currentLevel]; + level.items[level.index]++; + }, + nextLevel: function TagTree_nextLevel() { + var currentLevel = this.currentLevel; + var level = this.levels[currentLevel]; + var value = level.items[level.index]; + currentLevel--; + if (currentLevel < 0) { + this.value = value; + return false; + } + + this.currentLevel = currentLevel; + level = this.levels[currentLevel]; + level.items[level.index] = value; + return true; + } + }; + return TagTree; + })(); + + var InclusionTree = (function InclusionTreeClosure() { + function InclusionTree(width, height, defaultValue) { + var levelsLength = log2(Math.max(width, height)) + 1; + this.levels = []; + for (var i = 0; i < levelsLength; i++) { + var items = new Uint8Array(width * height); + for (var j = 0, jj = items.length; j < jj; j++) { + items[j] = defaultValue; + } + + var level = { + width: width, + height: height, + items: items + }; + this.levels.push(level); + + width = Math.ceil(width / 2); + height = Math.ceil(height / 2); + } + } + InclusionTree.prototype = { + reset: function InclusionTree_reset(i, j, stopValue) { + var currentLevel = 0; + while (currentLevel < this.levels.length) { + var level = this.levels[currentLevel]; + var index = i + j * level.width; + level.index = index; + var value = level.items[index]; + + if (value === 0xFF) { + break; + } + + if (value > stopValue) { + this.currentLevel = currentLevel; + // already know about this one, propagating the value to top levels + this.propagateValues(); + return false; + } + + i >>= 1; + j >>= 1; + currentLevel++; + } + this.currentLevel = currentLevel - 1; + return true; + }, + incrementValue: function InclusionTree_incrementValue(stopValue) { + var level = this.levels[this.currentLevel]; + level.items[level.index] = stopValue + 1; + this.propagateValues(); + }, + propagateValues: function InclusionTree_propagateValues() { + var levelIndex = this.currentLevel; + var level = this.levels[levelIndex]; + var currentValue = level.items[level.index]; + while (--levelIndex >= 0) { + level = this.levels[levelIndex]; + level.items[level.index] = currentValue; + } + }, + nextLevel: function InclusionTree_nextLevel() { + var currentLevel = this.currentLevel; + var level = this.levels[currentLevel]; + var value = level.items[level.index]; + level.items[level.index] = 0xFF; + currentLevel--; + if (currentLevel < 0) { + return false; + } + + this.currentLevel = currentLevel; + level = this.levels[currentLevel]; + level.items[level.index] = value; + return true; + } + }; + return InclusionTree; + })(); + + // Section D. Coefficient bit modeling + var BitModel = (function BitModelClosure() { + var UNIFORM_CONTEXT = 17; + var RUNLENGTH_CONTEXT = 18; + // Table D-1 + // The index is binary presentation: 0dddvvhh, ddd - sum of Di (0..4), + // vv - sum of Vi (0..2), and hh - sum of Hi (0..2) + var LLAndLHContextsLabel = new Uint8Array([ + 0, 5, 8, 0, 3, 7, 8, 0, 4, 7, 8, 0, 0, 0, 0, 0, 1, 6, 8, 0, 3, 7, 8, 0, 4, + 7, 8, 0, 0, 0, 0, 0, 2, 6, 8, 0, 3, 7, 8, 0, 4, 7, 8, 0, 0, 0, 0, 0, 2, 6, + 8, 0, 3, 7, 8, 0, 4, 7, 8, 0, 0, 0, 0, 0, 2, 6, 8, 0, 3, 7, 8, 0, 4, 7, 8 + ]); + var HLContextLabel = new Uint8Array([ + 0, 3, 4, 0, 5, 7, 7, 0, 8, 8, 8, 0, 0, 0, 0, 0, 1, 3, 4, 0, 6, 7, 7, 0, 8, + 8, 8, 0, 0, 0, 0, 0, 2, 3, 4, 0, 6, 7, 7, 0, 8, 8, 8, 0, 0, 0, 0, 0, 2, 3, + 4, 0, 6, 7, 7, 0, 8, 8, 8, 0, 0, 0, 0, 0, 2, 3, 4, 0, 6, 7, 7, 0, 8, 8, 8 + ]); + var HHContextLabel = new Uint8Array([ + 0, 1, 2, 0, 1, 2, 2, 0, 2, 2, 2, 0, 0, 0, 0, 0, 3, 4, 5, 0, 4, 5, 5, 0, 5, + 5, 5, 0, 0, 0, 0, 0, 6, 7, 7, 0, 7, 7, 7, 0, 7, 7, 7, 0, 0, 0, 0, 0, 8, 8, + 8, 0, 8, 8, 8, 0, 8, 8, 8, 0, 0, 0, 0, 0, 8, 8, 8, 0, 8, 8, 8, 0, 8, 8, 8 + ]); + + function BitModel(width, height, subband, zeroBitPlanes, mb) { + this.width = width; + this.height = height; + + this.contextLabelTable = (subband === 'HH' ? HHContextLabel : + (subband === 'HL' ? HLContextLabel : LLAndLHContextsLabel)); + + var coefficientCount = width * height; + + // coefficients outside the encoding region treated as insignificant + // add border state cells for significanceState + this.neighborsSignificance = new Uint8Array(coefficientCount); + this.coefficentsSign = new Uint8Array(coefficientCount); + this.coefficentsMagnitude = mb > 14 ? new Uint32Array(coefficientCount) : + mb > 6 ? new Uint16Array(coefficientCount) : + new Uint8Array(coefficientCount); + this.processingFlags = new Uint8Array(coefficientCount); + + var bitsDecoded = new Uint8Array(coefficientCount); + if (zeroBitPlanes !== 0) { + for (var i = 0; i < coefficientCount; i++) { + bitsDecoded[i] = zeroBitPlanes; + } + } + this.bitsDecoded = bitsDecoded; + + this.reset(); + } + + BitModel.prototype = { + setDecoder: function BitModel_setDecoder(decoder) { + this.decoder = decoder; + }, + reset: function BitModel_reset() { + // We have 17 contexts that are accessed via context labels, + // plus the uniform and runlength context. + this.contexts = new Int8Array(19); + + // Contexts are packed into 1 byte: + // highest 7 bits carry the index, lowest bit carries mps + this.contexts[0] = (4 << 1) | 0; + this.contexts[UNIFORM_CONTEXT] = (46 << 1) | 0; + this.contexts[RUNLENGTH_CONTEXT] = (3 << 1) | 0; + }, + setNeighborsSignificance: + function BitModel_setNeighborsSignificance(row, column, index) { + var neighborsSignificance = this.neighborsSignificance; + var width = this.width, height = this.height; + var left = (column > 0); + var right = (column + 1 < width); + var i; + + if (row > 0) { + i = index - width; + if (left) { + neighborsSignificance[i - 1] += 0x10; + } + if (right) { + neighborsSignificance[i + 1] += 0x10; + } + neighborsSignificance[i] += 0x04; + } + + if (row + 1 < height) { + i = index + width; + if (left) { + neighborsSignificance[i - 1] += 0x10; + } + if (right) { + neighborsSignificance[i + 1] += 0x10; + } + neighborsSignificance[i] += 0x04; + } + + if (left) { + neighborsSignificance[index - 1] += 0x01; + } + if (right) { + neighborsSignificance[index + 1] += 0x01; + } + neighborsSignificance[index] |= 0x80; + }, + runSignificancePropogationPass: + function BitModel_runSignificancePropogationPass() { + var decoder = this.decoder; + var width = this.width, height = this.height; + var coefficentsMagnitude = this.coefficentsMagnitude; + var coefficentsSign = this.coefficentsSign; + var neighborsSignificance = this.neighborsSignificance; + var processingFlags = this.processingFlags; + var contexts = this.contexts; + var labels = this.contextLabelTable; + var bitsDecoded = this.bitsDecoded; + var processedInverseMask = ~1; + var processedMask = 1; + var firstMagnitudeBitMask = 2; + + for (var i0 = 0; i0 < height; i0 += 4) { + for (var j = 0; j < width; j++) { + var index = i0 * width + j; + for (var i1 = 0; i1 < 4; i1++, index += width) { + var i = i0 + i1; + if (i >= height) { + break; + } + // clear processed flag first + processingFlags[index] &= processedInverseMask; + + if (coefficentsMagnitude[index] || + !neighborsSignificance[index]) { + continue; + } + + var contextLabel = labels[neighborsSignificance[index]]; + var decision = decoder.readBit(contexts, contextLabel); + if (decision) { + var sign = this.decodeSignBit(i, j, index); + coefficentsSign[index] = sign; + coefficentsMagnitude[index] = 1; + this.setNeighborsSignificance(i, j, index); + processingFlags[index] |= firstMagnitudeBitMask; + } + bitsDecoded[index]++; + processingFlags[index] |= processedMask; + } + } + } + }, + decodeSignBit: function BitModel_decodeSignBit(row, column, index) { + var width = this.width, height = this.height; + var coefficentsMagnitude = this.coefficentsMagnitude; + var coefficentsSign = this.coefficentsSign; + var contribution, sign0, sign1, significance1; + var contextLabel, decoded; + + // calculate horizontal contribution + significance1 = (column > 0 && coefficentsMagnitude[index - 1] !== 0); + if (column + 1 < width && coefficentsMagnitude[index + 1] !== 0) { + sign1 = coefficentsSign[index + 1]; + if (significance1) { + sign0 = coefficentsSign[index - 1]; + contribution = 1 - sign1 - sign0; + } else { + contribution = 1 - sign1 - sign1; + } + } else if (significance1) { + sign0 = coefficentsSign[index - 1]; + contribution = 1 - sign0 - sign0; + } else { + contribution = 0; + } + var horizontalContribution = 3 * contribution; + + // calculate vertical contribution and combine with the horizontal + significance1 = (row > 0 && coefficentsMagnitude[index - width] !== 0); + if (row + 1 < height && coefficentsMagnitude[index + width] !== 0) { + sign1 = coefficentsSign[index + width]; + if (significance1) { + sign0 = coefficentsSign[index - width]; + contribution = 1 - sign1 - sign0 + horizontalContribution; + } else { + contribution = 1 - sign1 - sign1 + horizontalContribution; + } + } else if (significance1) { + sign0 = coefficentsSign[index - width]; + contribution = 1 - sign0 - sign0 + horizontalContribution; + } else { + contribution = horizontalContribution; + } + + if (contribution >= 0) { + contextLabel = 9 + contribution; + decoded = this.decoder.readBit(this.contexts, contextLabel); + } else { + contextLabel = 9 - contribution; + decoded = this.decoder.readBit(this.contexts, contextLabel) ^ 1; + } + return decoded; + }, + runMagnitudeRefinementPass: + function BitModel_runMagnitudeRefinementPass() { + var decoder = this.decoder; + var width = this.width, height = this.height; + var coefficentsMagnitude = this.coefficentsMagnitude; + var neighborsSignificance = this.neighborsSignificance; + var contexts = this.contexts; + var bitsDecoded = this.bitsDecoded; + var processingFlags = this.processingFlags; + var processedMask = 1; + var firstMagnitudeBitMask = 2; + var length = width * height; + var width4 = width * 4; + + for (var index0 = 0, indexNext; index0 < length; index0 = indexNext) { + indexNext = Math.min(length, index0 + width4); + for (var j = 0; j < width; j++) { + for (var index = index0 + j; index < indexNext; index += width) { + + // significant but not those that have just become + if (!coefficentsMagnitude[index] || + (processingFlags[index] & processedMask) !== 0) { + continue; + } + + var contextLabel = 16; + if ((processingFlags[index] & firstMagnitudeBitMask) !== 0) { + processingFlags[index] ^= firstMagnitudeBitMask; + // first refinement + var significance = neighborsSignificance[index] & 127; + contextLabel = significance === 0 ? 15 : 14; + } + + var bit = decoder.readBit(contexts, contextLabel); + coefficentsMagnitude[index] = + (coefficentsMagnitude[index] << 1) | bit; + bitsDecoded[index]++; + processingFlags[index] |= processedMask; + } + } + } + }, + runCleanupPass: function BitModel_runCleanupPass() { + var decoder = this.decoder; + var width = this.width, height = this.height; + var neighborsSignificance = this.neighborsSignificance; + var coefficentsMagnitude = this.coefficentsMagnitude; + var coefficentsSign = this.coefficentsSign; + var contexts = this.contexts; + var labels = this.contextLabelTable; + var bitsDecoded = this.bitsDecoded; + var processingFlags = this.processingFlags; + var processedMask = 1; + var firstMagnitudeBitMask = 2; + var oneRowDown = width; + var twoRowsDown = width * 2; + var threeRowsDown = width * 3; + var iNext; + for (var i0 = 0; i0 < height; i0 = iNext) { + iNext = Math.min(i0 + 4, height); + var indexBase = i0 * width; + var checkAllEmpty = i0 + 3 < height; + for (var j = 0; j < width; j++) { + var index0 = indexBase + j; + // using the property: labels[neighborsSignificance[index]] === 0 + // when neighborsSignificance[index] === 0 + var allEmpty = (checkAllEmpty && + processingFlags[index0] === 0 && + processingFlags[index0 + oneRowDown] === 0 && + processingFlags[index0 + twoRowsDown] === 0 && + processingFlags[index0 + threeRowsDown] === 0 && + neighborsSignificance[index0] === 0 && + neighborsSignificance[index0 + oneRowDown] === 0 && + neighborsSignificance[index0 + twoRowsDown] === 0 && + neighborsSignificance[index0 + threeRowsDown] === 0); + var i1 = 0, index = index0; + var i = i0, sign; + if (allEmpty) { + var hasSignificantCoefficent = + decoder.readBit(contexts, RUNLENGTH_CONTEXT); + if (!hasSignificantCoefficent) { + bitsDecoded[index0]++; + bitsDecoded[index0 + oneRowDown]++; + bitsDecoded[index0 + twoRowsDown]++; + bitsDecoded[index0 + threeRowsDown]++; + continue; // next column + } + i1 = (decoder.readBit(contexts, UNIFORM_CONTEXT) << 1) | + decoder.readBit(contexts, UNIFORM_CONTEXT); + if (i1 !== 0) { + i = i0 + i1; + index += i1 * width; + } + + sign = this.decodeSignBit(i, j, index); + coefficentsSign[index] = sign; + coefficentsMagnitude[index] = 1; + this.setNeighborsSignificance(i, j, index); + processingFlags[index] |= firstMagnitudeBitMask; + + index = index0; + for (var i2 = i0; i2 <= i; i2++, index += width) { + bitsDecoded[index]++; + } + + i1++; + } + for (i = i0 + i1; i < iNext; i++, index += width) { + if (coefficentsMagnitude[index] || + (processingFlags[index] & processedMask) !== 0) { + continue; + } + + var contextLabel = labels[neighborsSignificance[index]]; + var decision = decoder.readBit(contexts, contextLabel); + if (decision === 1) { + sign = this.decodeSignBit(i, j, index); + coefficentsSign[index] = sign; + coefficentsMagnitude[index] = 1; + this.setNeighborsSignificance(i, j, index); + processingFlags[index] |= firstMagnitudeBitMask; + } + bitsDecoded[index]++; + } + } + } + }, + checkSegmentationSymbol: function BitModel_checkSegmentationSymbol() { + var decoder = this.decoder; + var contexts = this.contexts; + var symbol = (decoder.readBit(contexts, UNIFORM_CONTEXT) << 3) | + (decoder.readBit(contexts, UNIFORM_CONTEXT) << 2) | + (decoder.readBit(contexts, UNIFORM_CONTEXT) << 1) | + decoder.readBit(contexts, UNIFORM_CONTEXT); + if (symbol !== 0xA) { + throw new Error('JPX Error: Invalid segmentation symbol'); + } + } + }; + + return BitModel; + })(); + + // Section F, Discrete wavelet transformation + var Transform = (function TransformClosure() { + function Transform() {} + + Transform.prototype.calculate = + function transformCalculate(subbands, u0, v0) { + var ll = subbands[0]; + for (var i = 1, ii = subbands.length; i < ii; i++) { + ll = this.iterate(ll, subbands[i], u0, v0); + } + return ll; + }; + Transform.prototype.extend = function extend(buffer, offset, size) { + // Section F.3.7 extending... using max extension of 4 + var i1 = offset - 1, j1 = offset + 1; + var i2 = offset + size - 2, j2 = offset + size; + buffer[i1--] = buffer[j1++]; + buffer[j2++] = buffer[i2--]; + buffer[i1--] = buffer[j1++]; + buffer[j2++] = buffer[i2--]; + buffer[i1--] = buffer[j1++]; + buffer[j2++] = buffer[i2--]; + buffer[i1] = buffer[j1]; + buffer[j2] = buffer[i2]; + }; + Transform.prototype.iterate = function Transform_iterate(ll, hl_lh_hh, + u0, v0) { + var llWidth = ll.width, llHeight = ll.height, llItems = ll.items; + var width = hl_lh_hh.width; + var height = hl_lh_hh.height; + var items = hl_lh_hh.items; + var i, j, k, l, u, v; + + // Interleave LL according to Section F.3.3 + for (k = 0, i = 0; i < llHeight; i++) { + l = i * 2 * width; + for (j = 0; j < llWidth; j++, k++, l += 2) { + items[l] = llItems[k]; + } + } + // The LL band is not needed anymore. + llItems = ll.items = null; + + var bufferPadding = 4; + var rowBuffer = new Float32Array(width + 2 * bufferPadding); + + // Section F.3.4 HOR_SR + if (width === 1) { + // if width = 1, when u0 even keep items as is, when odd divide by 2 + if ((u0 & 1) !== 0) { + for (v = 0, k = 0; v < height; v++, k += width) { + items[k] *= 0.5; + } + } + } else { + for (v = 0, k = 0; v < height; v++, k += width) { + rowBuffer.set(items.subarray(k, k + width), bufferPadding); + + this.extend(rowBuffer, bufferPadding, width); + this.filter(rowBuffer, bufferPadding, width); + + items.set( + rowBuffer.subarray(bufferPadding, bufferPadding + width), + k); + } + } + + // Accesses to the items array can take long, because it may not fit into + // CPU cache and has to be fetched from main memory. Since subsequent + // accesses to the items array are not local when reading columns, we + // have a cache miss every time. To reduce cache misses, get up to + // 'numBuffers' items at a time and store them into the individual + // buffers. The colBuffers should be small enough to fit into CPU cache. + var numBuffers = 16; + var colBuffers = []; + for (i = 0; i < numBuffers; i++) { + colBuffers.push(new Float32Array(height + 2 * bufferPadding)); + } + var b, currentBuffer = 0; + ll = bufferPadding + height; + + // Section F.3.5 VER_SR + if (height === 1) { + // if height = 1, when v0 even keep items as is, when odd divide by 2 + if ((v0 & 1) !== 0) { + for (u = 0; u < width; u++) { + items[u] *= 0.5; + } + } + } else { + for (u = 0; u < width; u++) { + // if we ran out of buffers, copy several image columns at once + if (currentBuffer === 0) { + numBuffers = Math.min(width - u, numBuffers); + for (k = u, l = bufferPadding; l < ll; k += width, l++) { + for (b = 0; b < numBuffers; b++) { + colBuffers[b][l] = items[k + b]; + } + } + currentBuffer = numBuffers; + } + + currentBuffer--; + var buffer = colBuffers[currentBuffer]; + this.extend(buffer, bufferPadding, height); + this.filter(buffer, bufferPadding, height); + + // If this is last buffer in this group of buffers, flush all buffers. + if (currentBuffer === 0) { + k = u - numBuffers + 1; + for (l = bufferPadding; l < ll; k += width, l++) { + for (b = 0; b < numBuffers; b++) { + items[k + b] = colBuffers[b][l]; + } } } } } - return shadow(this, 'documentInfo', docInfo); - }, - get fingerprint() { - var xref = this.xref, hash, fileID = ''; - var idArray = xref.trailer.get('ID'); - if (idArray && isArray(idArray) && idArray[0] && isString(idArray[0]) && - idArray[0] !== EMPTY_FINGERPRINT) { - hash = stringToBytes(idArray[0]); - } else { - if (this.stream.ensureRange) { - this.stream.ensureRange(0, - Math.min(FINGERPRINT_FIRST_BYTES, this.stream.end)); + return { + width: width, + height: height, + items: items + }; + }; + return Transform; + })(); + + // Section 3.8.2 Irreversible 9-7 filter + var IrreversibleTransform = (function IrreversibleTransformClosure() { + function IrreversibleTransform() { + Transform.call(this); + } + + IrreversibleTransform.prototype = Object.create(Transform.prototype); + IrreversibleTransform.prototype.filter = + function irreversibleTransformFilter(x, offset, length) { + var len = length >> 1; + offset = offset | 0; + var j, n, current, next; + + var alpha = -1.586134342059924; + var beta = -0.052980118572961; + var gamma = 0.882911075530934; + var delta = 0.443506852043971; + var K = 1.230174104914001; + var K_ = 1 / K; + + // step 1 is combined with step 3 + + // step 2 + j = offset - 3; + for (n = len + 4; n--; j += 2) { + x[j] *= K_; + } + + // step 1 & 3 + j = offset - 2; + current = delta * x[j -1]; + for (n = len + 3; n--; j += 2) { + next = delta * x[j + 1]; + x[j] = K * x[j] - current - next; + if (n--) { + j += 2; + current = delta * x[j + 1]; + x[j] = K * x[j] - current - next; + } else { + break; } - hash = calculateMD5(this.stream.bytes.subarray(0, - FINGERPRINT_FIRST_BYTES), 0, FINGERPRINT_FIRST_BYTES); } - for (var i = 0, n = hash.length; i < n; i++) { - var hex = hash[i].toString(16); - fileID += hex.length === 1 ? '0' + hex : hex; + // step 4 + j = offset - 1; + current = gamma * x[j - 1]; + for (n = len + 2; n--; j += 2) { + next = gamma * x[j + 1]; + x[j] -= current + next; + if (n--) { + j += 2; + current = gamma * x[j + 1]; + x[j] -= current + next; + } else { + break; + } } - return shadow(this, 'fingerprint', fileID); + // step 5 + j = offset; + current = beta * x[j - 1]; + for (n = len + 1; n--; j += 2) { + next = beta * x[j + 1]; + x[j] -= current + next; + if (n--) { + j += 2; + current = beta * x[j + 1]; + x[j] -= current + next; + } else { + break; + } + } + + // step 6 + if (len !== 0) { + j = offset + 1; + current = alpha * x[j - 1]; + for (n = len; n--; j += 2) { + next = alpha * x[j + 1]; + x[j] -= current + next; + if (n--) { + j += 2; + current = alpha * x[j + 1]; + x[j] -= current + next; + } else { + break; + } + } + } + }; + + return IrreversibleTransform; + })(); + + // Section 3.8.1 Reversible 5-3 filter + var ReversibleTransform = (function ReversibleTransformClosure() { + function ReversibleTransform() { + Transform.call(this); + } + + ReversibleTransform.prototype = Object.create(Transform.prototype); + ReversibleTransform.prototype.filter = + function reversibleTransformFilter(x, offset, length) { + var len = length >> 1; + offset = offset | 0; + var j, n; + + for (j = offset, n = len + 1; n--; j += 2) { + x[j] -= (x[j - 1] + x[j + 1] + 2) >> 2; + } + + for (j = offset + 1, n = len; n--; j += 2) { + x[j] += (x[j - 1] + x[j + 1]) >> 1; + } + }; + + return ReversibleTransform; + })(); + + return JpxImage; +})(); + +exports.JpxImage = JpxImage; +})); + + + +(function (root, factory) { + { + factory((root.pdfjsCoreMurmurHash3 = {}), root.pdfjsSharedUtil); + } +}(this, function (exports, sharedUtil) { + +var Uint32ArrayView = sharedUtil.Uint32ArrayView; + +var MurmurHash3_64 = (function MurmurHash3_64Closure (seed) { + // Workaround for missing math precison in JS. + var MASK_HIGH = 0xffff0000; + var MASK_LOW = 0xffff; + + function MurmurHash3_64 (seed) { + var SEED = 0xc3d2e1f0; + this.h1 = seed ? seed & 0xffffffff : SEED; + this.h2 = seed ? seed & 0xffffffff : SEED; + } + + var alwaysUseUint32ArrayView = false; + + MurmurHash3_64.prototype = { + update: function MurmurHash3_64_update(input) { + var useUint32ArrayView = alwaysUseUint32ArrayView; + var i; + if (typeof input === 'string') { + var data = new Uint8Array(input.length * 2); + var length = 0; + for (i = 0; i < input.length; i++) { + var code = input.charCodeAt(i); + if (code <= 0xff) { + data[length++] = code; + } + else { + data[length++] = code >>> 8; + data[length++] = code & 0xff; + } + } + } else if (input instanceof Uint8Array) { + data = input; + length = data.length; + } else if (typeof input === 'object' && ('length' in input)) { + // processing regular arrays as well, e.g. for IE9 + data = input; + length = data.length; + useUint32ArrayView = true; + } else { + throw new Error('Wrong data format in MurmurHash3_64_update. ' + + 'Input must be a string or array.'); + } + + var blockCounts = length >> 2; + var tailLength = length - blockCounts * 4; + // we don't care about endianness here + var dataUint32 = useUint32ArrayView ? + new Uint32ArrayView(data, blockCounts) : + new Uint32Array(data.buffer, 0, blockCounts); + var k1 = 0; + var k2 = 0; + var h1 = this.h1; + var h2 = this.h2; + var C1 = 0xcc9e2d51; + var C2 = 0x1b873593; + var C1_LOW = C1 & MASK_LOW; + var C2_LOW = C2 & MASK_LOW; + + for (i = 0; i < blockCounts; i++) { + if (i & 1) { + k1 = dataUint32[i]; + k1 = (k1 * C1 & MASK_HIGH) | (k1 * C1_LOW & MASK_LOW); + k1 = k1 << 15 | k1 >>> 17; + k1 = (k1 * C2 & MASK_HIGH) | (k1 * C2_LOW & MASK_LOW); + h1 ^= k1; + h1 = h1 << 13 | h1 >>> 19; + h1 = h1 * 5 + 0xe6546b64; + } else { + k2 = dataUint32[i]; + k2 = (k2 * C1 & MASK_HIGH) | (k2 * C1_LOW & MASK_LOW); + k2 = k2 << 15 | k2 >>> 17; + k2 = (k2 * C2 & MASK_HIGH) | (k2 * C2_LOW & MASK_LOW); + h2 ^= k2; + h2 = h2 << 13 | h2 >>> 19; + h2 = h2 * 5 + 0xe6546b64; + } + } + + k1 = 0; + + switch (tailLength) { + case 3: + k1 ^= data[blockCounts * 4 + 2] << 16; + /* falls through */ + case 2: + k1 ^= data[blockCounts * 4 + 1] << 8; + /* falls through */ + case 1: + k1 ^= data[blockCounts * 4]; + /* falls through */ + k1 = (k1 * C1 & MASK_HIGH) | (k1 * C1_LOW & MASK_LOW); + k1 = k1 << 15 | k1 >>> 17; + k1 = (k1 * C2 & MASK_HIGH) | (k1 * C2_LOW & MASK_LOW); + if (blockCounts & 1) { + h1 ^= k1; + } else { + h2 ^= k1; + } + } + + this.h1 = h1; + this.h2 = h2; + return this; }, - getPage: function PDFDocument_getPage(pageIndex) { - return this.catalog.getPage(pageIndex); - }, + hexdigest: function MurmurHash3_64_hexdigest () { + var h1 = this.h1; + var h2 = this.h2; - cleanup: function PDFDocument_cleanup() { - return this.catalog.cleanup(); + h1 ^= h2 >>> 1; + h1 = (h1 * 0xed558ccd & MASK_HIGH) | (h1 * 0x8ccd & MASK_LOW); + h2 = (h2 * 0xff51afd7 & MASK_HIGH) | + (((h2 << 16 | h1 >>> 16) * 0xafd7ed55 & MASK_HIGH) >>> 16); + h1 ^= h2 >>> 1; + h1 = (h1 * 0x1a85ec53 & MASK_HIGH) | (h1 * 0xec53 & MASK_LOW); + h2 = (h2 * 0xc4ceb9fe & MASK_HIGH) | + (((h2 << 16 | h1 >>> 16) * 0xb9fe1a85 & MASK_HIGH) >>> 16); + h1 ^= h2 >>> 1; + + for (var i = 0, arr = [h1, h2], str = ''; i < arr.length; i++) { + var hex = (arr[i] >>> 0).toString(16); + while (hex.length < 8) { + hex = '0' + hex; + } + str += hex; + } + + return str; } }; - return PDFDocument; + return MurmurHash3_64; })(); +exports.MurmurHash3_64 = MurmurHash3_64; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCorePrimitives = {}), root.pdfjsSharedUtil); + } +}(this, function (exports, sharedUtil) { + +var isArray = sharedUtil.isArray; var Name = (function NameClosure() { function Name(name) { @@ -2892,4576 +14818,2574 @@ var RefSetCache = (function RefSetCacheClosure() { return RefSetCache; })(); -var Catalog = (function CatalogClosure() { - function Catalog(pdfManager, xref) { - this.pdfManager = pdfManager; - this.xref = xref; - this.catDict = xref.getCatalogObj(); - this.fontCache = new RefSetCache(); - assert(isDict(this.catDict), - 'catalog object is not a dictionary'); - - this.pagePromises = []; - } - - Catalog.prototype = { - get metadata() { - var streamRef = this.catDict.getRaw('Metadata'); - if (!isRef(streamRef)) { - return shadow(this, 'metadata', null); - } - - var encryptMetadata = (!this.xref.encrypt ? false : - this.xref.encrypt.encryptMetadata); - - var stream = this.xref.fetch(streamRef, !encryptMetadata); - var metadata; - if (stream && isDict(stream.dict)) { - var type = stream.dict.get('Type'); - var subtype = stream.dict.get('Subtype'); - - if (isName(type) && isName(subtype) && - type.name === 'Metadata' && subtype.name === 'XML') { - // XXX: This should examine the charset the XML document defines, - // however since there are currently no real means to decode - // arbitrary charsets, let's just hope that the author of the PDF - // was reasonable enough to stick with the XML default charset, - // which is UTF-8. - try { - metadata = stringToUTF8String(bytesToString(stream.getBytes())); - } catch (e) { - info('Skipping invalid metadata.'); - } - } - } - - return shadow(this, 'metadata', metadata); - }, - get toplevelPagesDict() { - var pagesObj = this.catDict.get('Pages'); - assert(isDict(pagesObj), 'invalid top-level pages dictionary'); - // shadow the prototype getter - return shadow(this, 'toplevelPagesDict', pagesObj); - }, - get documentOutline() { - var obj = null; - try { - obj = this.readDocumentOutline(); - } catch (ex) { - if (ex instanceof MissingDataException) { - throw ex; - } - warn('Unable to read document outline'); - } - return shadow(this, 'documentOutline', obj); - }, - readDocumentOutline: function Catalog_readDocumentOutline() { - var xref = this.xref; - var obj = this.catDict.get('Outlines'); - var root = { items: [] }; - if (isDict(obj)) { - obj = obj.getRaw('First'); - var processed = new RefSet(); - if (isRef(obj)) { - var queue = [{obj: obj, parent: root}]; - // to avoid recursion keeping track of the items - // in the processed dictionary - processed.put(obj); - while (queue.length > 0) { - var i = queue.shift(); - var outlineDict = xref.fetchIfRef(i.obj); - if (outlineDict === null) { - continue; - } - if (!outlineDict.has('Title')) { - error('Invalid outline item'); - } - var dest = outlineDict.get('A'); - if (dest) { - dest = dest.get('D'); - } else if (outlineDict.has('Dest')) { - dest = outlineDict.getRaw('Dest'); - if (isName(dest)) { - dest = dest.name; - } - } - var title = outlineDict.get('Title'); - var outlineItem = { - dest: dest, - title: stringToPDFString(title), - color: outlineDict.get('C') || [0, 0, 0], - count: outlineDict.get('Count'), - bold: !!(outlineDict.get('F') & 2), - italic: !!(outlineDict.get('F') & 1), - items: [] - }; - i.parent.items.push(outlineItem); - obj = outlineDict.getRaw('First'); - if (isRef(obj) && !processed.has(obj)) { - queue.push({obj: obj, parent: outlineItem}); - processed.put(obj); - } - obj = outlineDict.getRaw('Next'); - if (isRef(obj) && !processed.has(obj)) { - queue.push({obj: obj, parent: i.parent}); - processed.put(obj); - } - } - } - } - return (root.items.length > 0 ? root.items : null); - }, - get numPages() { - var obj = this.toplevelPagesDict.get('Count'); - assert( - isInt(obj), - 'page count in top level pages object is not an integer' - ); - // shadow the prototype getter - return shadow(this, 'num', obj); - }, - get destinations() { - function fetchDestination(dest) { - return isDict(dest) ? dest.get('D') : dest; - } - - var xref = this.xref; - var dests = {}, nameTreeRef, nameDictionaryRef; - var obj = this.catDict.get('Names'); - if (obj && obj.has('Dests')) { - nameTreeRef = obj.getRaw('Dests'); - } else if (this.catDict.has('Dests')) { - nameDictionaryRef = this.catDict.get('Dests'); - } - - if (nameDictionaryRef) { - // reading simple destination dictionary - obj = nameDictionaryRef; - obj.forEach(function catalogForEach(key, value) { - if (!value) { - return; - } - dests[key] = fetchDestination(value); - }); - } - if (nameTreeRef) { - var nameTree = new NameTree(nameTreeRef, xref); - var names = nameTree.getAll(); - for (var name in names) { - if (!names.hasOwnProperty(name)) { - continue; - } - dests[name] = fetchDestination(names[name]); - } - } - return shadow(this, 'destinations', dests); - }, - getDestination: function Catalog_getDestination(destinationId) { - function fetchDestination(dest) { - return isDict(dest) ? dest.get('D') : dest; - } - - var xref = this.xref; - var dest = null, nameTreeRef, nameDictionaryRef; - var obj = this.catDict.get('Names'); - if (obj && obj.has('Dests')) { - nameTreeRef = obj.getRaw('Dests'); - } else if (this.catDict.has('Dests')) { - nameDictionaryRef = this.catDict.get('Dests'); - } - - if (nameDictionaryRef) { // Simple destination dictionary. - var value = nameDictionaryRef.get(destinationId); - if (value) { - dest = fetchDestination(value); - } - } - if (nameTreeRef) { - var nameTree = new NameTree(nameTreeRef, xref); - dest = fetchDestination(nameTree.get(destinationId)); - } - return dest; - }, - get attachments() { - var xref = this.xref; - var attachments = null, nameTreeRef; - var obj = this.catDict.get('Names'); - if (obj) { - nameTreeRef = obj.getRaw('EmbeddedFiles'); - } - - if (nameTreeRef) { - var nameTree = new NameTree(nameTreeRef, xref); - var names = nameTree.getAll(); - for (var name in names) { - if (!names.hasOwnProperty(name)) { - continue; - } - var fs = new FileSpec(names[name], xref); - if (!attachments) { - attachments = {}; - } - attachments[stringToPDFString(name)] = fs.serializable; - } - } - return shadow(this, 'attachments', attachments); - }, - get javaScript() { - var xref = this.xref; - var obj = this.catDict.get('Names'); - - var javaScript = []; - function appendIfJavaScriptDict(jsDict) { - var type = jsDict.get('S'); - if (!isName(type) || type.name !== 'JavaScript') { - return; - } - var js = jsDict.get('JS'); - if (isStream(js)) { - js = bytesToString(js.getBytes()); - } else if (!isString(js)) { - return; - } - javaScript.push(stringToPDFString(js)); - } - if (obj && obj.has('JavaScript')) { - var nameTree = new NameTree(obj.getRaw('JavaScript'), xref); - var names = nameTree.getAll(); - for (var name in names) { - if (!names.hasOwnProperty(name)) { - continue; - } - // We don't really use the JavaScript right now. This code is - // defensive so we don't cause errors on document load. - var jsDict = names[name]; - if (isDict(jsDict)) { - appendIfJavaScriptDict(jsDict); - } - } - } - - // Append OpenAction actions to javaScript array - var openactionDict = this.catDict.get('OpenAction'); - if (isDict(openactionDict, 'Action')) { - var actionType = openactionDict.get('S'); - if (isName(actionType) && actionType.name === 'Named') { - // The named Print action is not a part of the PDF 1.7 specification, - // but is supported by many PDF readers/writers (including Adobe's). - var action = openactionDict.get('N'); - if (isName(action) && action.name === 'Print') { - javaScript.push('print({});'); - } - } else { - appendIfJavaScriptDict(openactionDict); - } - } - - return shadow(this, 'javaScript', javaScript); - }, - - cleanup: function Catalog_cleanup() { - var promises = []; - this.fontCache.forEach(function (promise) { - promises.push(promise); - }); - return Promise.all(promises).then(function (translatedFonts) { - for (var i = 0, ii = translatedFonts.length; i < ii; i++) { - var font = translatedFonts[i].dict; - delete font.translated; - } - this.fontCache.clear(); - }.bind(this)); - }, - - getPage: function Catalog_getPage(pageIndex) { - if (!(pageIndex in this.pagePromises)) { - this.pagePromises[pageIndex] = this.getPageDict(pageIndex).then( - function (a) { - var dict = a[0]; - var ref = a[1]; - return new Page(this.pdfManager, this.xref, pageIndex, dict, ref, - this.fontCache); - }.bind(this) - ); - } - return this.pagePromises[pageIndex]; - }, - - getPageDict: function Catalog_getPageDict(pageIndex) { - var capability = createPromiseCapability(); - var nodesToVisit = [this.catDict.getRaw('Pages')]; - var currentPageIndex = 0; - var xref = this.xref; - var checkAllKids = false; - - function next() { - while (nodesToVisit.length) { - var currentNode = nodesToVisit.pop(); - - if (isRef(currentNode)) { - xref.fetchAsync(currentNode).then(function (obj) { - if (isDict(obj, 'Page') || (isDict(obj) && !obj.has('Kids'))) { - if (pageIndex === currentPageIndex) { - capability.resolve([obj, currentNode]); - } else { - currentPageIndex++; - next(); - } - return; - } - nodesToVisit.push(obj); - next(); - }, capability.reject); - return; - } - - // Must be a child page dictionary. - assert( - isDict(currentNode), - 'page dictionary kid reference points to wrong type of object' - ); - var count = currentNode.get('Count'); - // If the current node doesn't have any children, avoid getting stuck - // in an empty node further down in the tree (see issue5644.pdf). - if (count === 0) { - checkAllKids = true; - } - // Skip nodes where the page can't be. - if (currentPageIndex + count <= pageIndex) { - currentPageIndex += count; - continue; - } - - var kids = currentNode.get('Kids'); - assert(isArray(kids), 'page dictionary kids object is not an array'); - if (!checkAllKids && count === kids.length) { - // Nodes that don't have the page have been skipped and this is the - // bottom of the tree which means the page requested must be a - // descendant of this pages node. Ideally we would just resolve the - // promise with the page ref here, but there is the case where more - // pages nodes could link to single a page (see issue 3666 pdf). To - // handle this push it back on the queue so if it is a pages node it - // will be descended into. - nodesToVisit = [kids[pageIndex - currentPageIndex]]; - currentPageIndex = pageIndex; - continue; - } else { - for (var last = kids.length - 1; last >= 0; last--) { - nodesToVisit.push(kids[last]); - } - } - } - capability.reject('Page index ' + pageIndex + ' not found.'); - } - next(); - return capability.promise; - }, - - getPageIndex: function Catalog_getPageIndex(ref) { - // The page tree nodes have the count of all the leaves below them. To get - // how many pages are before we just have to walk up the tree and keep - // adding the count of siblings to the left of the node. - var xref = this.xref; - function pagesBeforeRef(kidRef) { - var total = 0; - var parentRef; - return xref.fetchAsync(kidRef).then(function (node) { - if (!node) { - return null; - } - parentRef = node.getRaw('Parent'); - return node.getAsync('Parent'); - }).then(function (parent) { - if (!parent) { - return null; - } - return parent.getAsync('Kids'); - }).then(function (kids) { - if (!kids) { - return null; - } - var kidPromises = []; - var found = false; - for (var i = 0; i < kids.length; i++) { - var kid = kids[i]; - assert(isRef(kid), 'kids must be a ref'); - if (kid.num === kidRef.num) { - found = true; - break; - } - kidPromises.push(xref.fetchAsync(kid).then(function (kid) { - if (kid.has('Count')) { - var count = kid.get('Count'); - total += count; - } else { // page leaf node - total++; - } - })); - } - if (!found) { - error('kid ref not found in parents kids'); - } - return Promise.all(kidPromises).then(function () { - return [total, parentRef]; - }); - }); - } - - var total = 0; - function next(ref) { - return pagesBeforeRef(ref).then(function (args) { - if (!args) { - return total; - } - var count = args[0]; - var parentRef = args[1]; - total += count; - return next(parentRef); - }); - } - - return next(ref); - } - }; - - return Catalog; -})(); - -var XRef = (function XRefClosure() { - function XRef(stream, password) { - this.stream = stream; - this.entries = []; - this.xrefstms = {}; - // prepare the XRef cache - this.cache = []; - this.password = password; - this.stats = { - streamTypes: [], - fontTypes: [] - }; - } - - XRef.prototype = { - setStartXRef: function XRef_setStartXRef(startXRef) { - // Store the starting positions of xref tables as we process them - // so we can recover from missing data errors - this.startXRefQueue = [startXRef]; - }, - - parse: function XRef_parse(recoveryMode) { - var trailerDict; - if (!recoveryMode) { - trailerDict = this.readXRef(); - } else { - warn('Indexing all PDF objects'); - trailerDict = this.indexObjects(); - } - trailerDict.assignXref(this); - this.trailer = trailerDict; - var encrypt = trailerDict.get('Encrypt'); - if (encrypt) { - var ids = trailerDict.get('ID'); - var fileId = (ids && ids.length) ? ids[0] : ''; - this.encrypt = new CipherTransformFactory(encrypt, fileId, - this.password); - } - - // get the root dictionary (catalog) object - if (!(this.root = trailerDict.get('Root'))) { - error('Invalid root reference'); - } - }, - - processXRefTable: function XRef_processXRefTable(parser) { - if (!('tableState' in this)) { - // Stores state of the table as we process it so we can resume - // from middle of table in case of missing data error - this.tableState = { - entryNum: 0, - streamPos: parser.lexer.stream.pos, - parserBuf1: parser.buf1, - parserBuf2: parser.buf2 - }; - } - - var obj = this.readXRefTable(parser); - - // Sanity check - if (!isCmd(obj, 'trailer')) { - error('Invalid XRef table: could not find trailer dictionary'); - } - // Read trailer dictionary, e.g. - // trailer - // << /Size 22 - // /Root 20R - // /Info 10R - // /ID [ <81b14aafa313db63dbd6f981e49f94f4> ] - // >> - // The parser goes through the entire stream << ... >> and provides - // a getter interface for the key-value table - var dict = parser.getObj(); - - // The pdflib PDF generator can generate a nested trailer dictionary - if (!isDict(dict) && dict.dict) { - dict = dict.dict; - } - if (!isDict(dict)) { - error('Invalid XRef table: could not parse trailer dictionary'); - } - delete this.tableState; - - return dict; - }, - - readXRefTable: function XRef_readXRefTable(parser) { - // Example of cross-reference table: - // xref - // 0 1 <-- subsection header (first obj #, obj count) - // 0000000000 65535 f <-- actual object (offset, generation #, f/n) - // 23 2 <-- subsection header ... and so on ... - // 0000025518 00002 n - // 0000025635 00000 n - // trailer - // ... - - var stream = parser.lexer.stream; - var tableState = this.tableState; - stream.pos = tableState.streamPos; - parser.buf1 = tableState.parserBuf1; - parser.buf2 = tableState.parserBuf2; - - // Outer loop is over subsection headers - var obj; - - while (true) { - if (!('firstEntryNum' in tableState) || !('entryCount' in tableState)) { - if (isCmd(obj = parser.getObj(), 'trailer')) { - break; - } - tableState.firstEntryNum = obj; - tableState.entryCount = parser.getObj(); - } - - var first = tableState.firstEntryNum; - var count = tableState.entryCount; - if (!isInt(first) || !isInt(count)) { - error('Invalid XRef table: wrong types in subsection header'); - } - // Inner loop is over objects themselves - for (var i = tableState.entryNum; i < count; i++) { - tableState.streamPos = stream.pos; - tableState.entryNum = i; - tableState.parserBuf1 = parser.buf1; - tableState.parserBuf2 = parser.buf2; - - var entry = {}; - entry.offset = parser.getObj(); - entry.gen = parser.getObj(); - var type = parser.getObj(); - - if (isCmd(type, 'f')) { - entry.free = true; - } else if (isCmd(type, 'n')) { - entry.uncompressed = true; - } - - // Validate entry obj - if (!isInt(entry.offset) || !isInt(entry.gen) || - !(entry.free || entry.uncompressed)) { - error('Invalid entry in XRef subsection: ' + first + ', ' + count); - } - - if (!this.entries[i + first]) { - this.entries[i + first] = entry; - } - } - - tableState.entryNum = 0; - tableState.streamPos = stream.pos; - tableState.parserBuf1 = parser.buf1; - tableState.parserBuf2 = parser.buf2; - delete tableState.firstEntryNum; - delete tableState.entryCount; - } - - // Per issue 3248: hp scanners generate bad XRef - if (first === 1 && this.entries[1] && this.entries[1].free) { - // shifting the entries - this.entries.shift(); - } - - // Sanity check: as per spec, first object must be free - if (this.entries[0] && !this.entries[0].free) { - error('Invalid XRef table: unexpected first object'); - } - return obj; - }, - - processXRefStream: function XRef_processXRefStream(stream) { - if (!('streamState' in this)) { - // Stores state of the stream as we process it so we can resume - // from middle of stream in case of missing data error - var streamParameters = stream.dict; - var byteWidths = streamParameters.get('W'); - var range = streamParameters.get('Index'); - if (!range) { - range = [0, streamParameters.get('Size')]; - } - - this.streamState = { - entryRanges: range, - byteWidths: byteWidths, - entryNum: 0, - streamPos: stream.pos - }; - } - this.readXRefStream(stream); - delete this.streamState; - - return stream.dict; - }, - - readXRefStream: function XRef_readXRefStream(stream) { - var i, j; - var streamState = this.streamState; - stream.pos = streamState.streamPos; - - var byteWidths = streamState.byteWidths; - var typeFieldWidth = byteWidths[0]; - var offsetFieldWidth = byteWidths[1]; - var generationFieldWidth = byteWidths[2]; - - var entryRanges = streamState.entryRanges; - while (entryRanges.length > 0) { - var first = entryRanges[0]; - var n = entryRanges[1]; - - if (!isInt(first) || !isInt(n)) { - error('Invalid XRef range fields: ' + first + ', ' + n); - } - if (!isInt(typeFieldWidth) || !isInt(offsetFieldWidth) || - !isInt(generationFieldWidth)) { - error('Invalid XRef entry fields length: ' + first + ', ' + n); - } - for (i = streamState.entryNum; i < n; ++i) { - streamState.entryNum = i; - streamState.streamPos = stream.pos; - - var type = 0, offset = 0, generation = 0; - for (j = 0; j < typeFieldWidth; ++j) { - type = (type << 8) | stream.getByte(); - } - // if type field is absent, its default value is 1 - if (typeFieldWidth === 0) { - type = 1; - } - for (j = 0; j < offsetFieldWidth; ++j) { - offset = (offset << 8) | stream.getByte(); - } - for (j = 0; j < generationFieldWidth; ++j) { - generation = (generation << 8) | stream.getByte(); - } - var entry = {}; - entry.offset = offset; - entry.gen = generation; - switch (type) { - case 0: - entry.free = true; - break; - case 1: - entry.uncompressed = true; - break; - case 2: - break; - default: - error('Invalid XRef entry type: ' + type); - } - if (!this.entries[first + i]) { - this.entries[first + i] = entry; - } - } - - streamState.entryNum = 0; - streamState.streamPos = stream.pos; - entryRanges.splice(0, 2); - } - }, - - indexObjects: function XRef_indexObjects() { - // Simple scan through the PDF content to find objects, - // trailers and XRef streams. - var TAB = 0x9, LF = 0xA, CR = 0xD, SPACE = 0x20; - var PERCENT = 0x25, LT = 0x3C; - - function readToken(data, offset) { - var token = '', ch = data[offset]; - while (ch !== LF && ch !== CR && ch !== LT) { - if (++offset >= data.length) { - break; - } - token += String.fromCharCode(ch); - ch = data[offset]; - } - return token; - } - function skipUntil(data, offset, what) { - var length = what.length, dataLength = data.length; - var skipped = 0; - // finding byte sequence - while (offset < dataLength) { - var i = 0; - while (i < length && data[offset + i] === what[i]) { - ++i; - } - if (i >= length) { - break; // sequence found - } - offset++; - skipped++; - } - return skipped; - } - var objRegExp = /^(\d+)\s+(\d+)\s+obj\b/; - var trailerBytes = new Uint8Array([116, 114, 97, 105, 108, 101, 114]); - var startxrefBytes = new Uint8Array([115, 116, 97, 114, 116, 120, 114, - 101, 102]); - var endobjBytes = new Uint8Array([101, 110, 100, 111, 98, 106]); - var xrefBytes = new Uint8Array([47, 88, 82, 101, 102]); - - // Clear out any existing entries, since they may be bogus. - this.entries.length = 0; - - var stream = this.stream; - stream.pos = 0; - var buffer = stream.getBytes(); - var position = stream.start, length = buffer.length; - var trailers = [], xrefStms = []; - while (position < length) { - var ch = buffer[position]; - if (ch === TAB || ch === LF || ch === CR || ch === SPACE) { - ++position; - continue; - } - if (ch === PERCENT) { // %-comment - do { - ++position; - if (position >= length) { - break; - } - ch = buffer[position]; - } while (ch !== LF && ch !== CR); - continue; - } - var token = readToken(buffer, position); - var m; - if (token.indexOf('xref') === 0 && - (token.length === 4 || /\s/.test(token[4]))) { - position += skipUntil(buffer, position, trailerBytes); - trailers.push(position); - position += skipUntil(buffer, position, startxrefBytes); - } else if ((m = objRegExp.exec(token))) { - if (typeof this.entries[m[1]] === 'undefined') { - this.entries[m[1]] = { - offset: position - stream.start, - gen: m[2] | 0, - uncompressed: true - }; - } - var contentLength = skipUntil(buffer, position, endobjBytes) + 7; - var content = buffer.subarray(position, position + contentLength); - - // checking XRef stream suspect - // (it shall have '/XRef' and next char is not a letter) - var xrefTagOffset = skipUntil(content, 0, xrefBytes); - if (xrefTagOffset < contentLength && - content[xrefTagOffset + 5] < 64) { - xrefStms.push(position - stream.start); - this.xrefstms[position - stream.start] = 1; // Avoid recursion - } - - position += contentLength; - } else if (token.indexOf('trailer') === 0 && - (token.length === 7 || /\s/.test(token[7]))) { - trailers.push(position); - position += skipUntil(buffer, position, startxrefBytes); - } else { - position += token.length + 1; - } - } - // reading XRef streams - var i, ii; - for (i = 0, ii = xrefStms.length; i < ii; ++i) { - this.startXRefQueue.push(xrefStms[i]); - this.readXRef(/* recoveryMode */ true); - } - // finding main trailer - var dict; - for (i = 0, ii = trailers.length; i < ii; ++i) { - stream.pos = trailers[i]; - var parser = new Parser(new Lexer(stream), true, this); - var obj = parser.getObj(); - if (!isCmd(obj, 'trailer')) { - continue; - } - // read the trailer dictionary - if (!isDict(dict = parser.getObj())) { - continue; - } - // taking the first one with 'ID' - if (dict.has('ID')) { - return dict; - } - } - // no tailer with 'ID', taking last one (if exists) - if (dict) { - return dict; - } - // nothing helps - // calling error() would reject worker with an UnknownErrorException. - throw new InvalidPDFException('Invalid PDF structure'); - }, - - readXRef: function XRef_readXRef(recoveryMode) { - var stream = this.stream; - - try { - while (this.startXRefQueue.length) { - var startXRef = this.startXRefQueue[0]; - - stream.pos = startXRef + stream.start; - - var parser = new Parser(new Lexer(stream), true, this); - var obj = parser.getObj(); - var dict; - - // Get dictionary - if (isCmd(obj, 'xref')) { - // Parse end-of-file XRef - dict = this.processXRefTable(parser); - if (!this.topDict) { - this.topDict = dict; - } - - // Recursively get other XRefs 'XRefStm', if any - obj = dict.get('XRefStm'); - if (isInt(obj)) { - var pos = obj; - // ignore previously loaded xref streams - // (possible infinite recursion) - if (!(pos in this.xrefstms)) { - this.xrefstms[pos] = 1; - this.startXRefQueue.push(pos); - } - } - } else if (isInt(obj)) { - // Parse in-stream XRef - if (!isInt(parser.getObj()) || - !isCmd(parser.getObj(), 'obj') || - !isStream(obj = parser.getObj())) { - error('Invalid XRef stream'); - } - dict = this.processXRefStream(obj); - if (!this.topDict) { - this.topDict = dict; - } - if (!dict) { - error('Failed to read XRef stream'); - } - } else { - error('Invalid XRef stream header'); - } - - // Recursively get previous dictionary, if any - obj = dict.get('Prev'); - if (isInt(obj)) { - this.startXRefQueue.push(obj); - } else if (isRef(obj)) { - // The spec says Prev must not be a reference, i.e. "/Prev NNN" - // This is a fallback for non-compliant PDFs, i.e. "/Prev NNN 0 R" - this.startXRefQueue.push(obj.num); - } - - this.startXRefQueue.shift(); - } - - return this.topDict; - } catch (e) { - if (e instanceof MissingDataException) { - throw e; - } - info('(while reading XRef): ' + e); - } - - if (recoveryMode) { - return; - } - throw new XRefParseException(); - }, - - getEntry: function XRef_getEntry(i) { - var xrefEntry = this.entries[i]; - if (xrefEntry && !xrefEntry.free && xrefEntry.offset) { - return xrefEntry; - } - return null; - }, - - fetchIfRef: function XRef_fetchIfRef(obj) { - if (!isRef(obj)) { - return obj; - } - return this.fetch(obj); - }, - - fetch: function XRef_fetch(ref, suppressEncryption) { - assert(isRef(ref), 'ref object is not a reference'); - var num = ref.num; - if (num in this.cache) { - var cacheEntry = this.cache[num]; - return cacheEntry; - } - - var xrefEntry = this.getEntry(num); - - // the referenced entry can be free - if (xrefEntry === null) { - return (this.cache[num] = null); - } - - if (xrefEntry.uncompressed) { - xrefEntry = this.fetchUncompressed(ref, xrefEntry, suppressEncryption); - } else { - xrefEntry = this.fetchCompressed(xrefEntry, suppressEncryption); - } - if (isDict(xrefEntry)){ - xrefEntry.objId = ref.toString(); - } else if (isStream(xrefEntry)) { - xrefEntry.dict.objId = ref.toString(); - } - return xrefEntry; - }, - - fetchUncompressed: function XRef_fetchUncompressed(ref, xrefEntry, - suppressEncryption) { - var gen = ref.gen; - var num = ref.num; - if (xrefEntry.gen !== gen) { - error('inconsistent generation in XRef'); - } - var stream = this.stream.makeSubStream(xrefEntry.offset + - this.stream.start); - var parser = new Parser(new Lexer(stream), true, this); - var obj1 = parser.getObj(); - var obj2 = parser.getObj(); - var obj3 = parser.getObj(); - if (!isInt(obj1) || parseInt(obj1, 10) !== num || - !isInt(obj2) || parseInt(obj2, 10) !== gen || - !isCmd(obj3)) { - error('bad XRef entry'); - } - if (!isCmd(obj3, 'obj')) { - // some bad PDFs use "obj1234" and really mean 1234 - if (obj3.cmd.indexOf('obj') === 0) { - num = parseInt(obj3.cmd.substring(3), 10); - if (!isNaN(num)) { - return num; - } - } - error('bad XRef entry'); - } - if (this.encrypt && !suppressEncryption) { - xrefEntry = parser.getObj(this.encrypt.createCipherTransform(num, gen)); - } else { - xrefEntry = parser.getObj(); - } - if (!isStream(xrefEntry)) { - this.cache[num] = xrefEntry; - } - return xrefEntry; - }, - - fetchCompressed: function XRef_fetchCompressed(xrefEntry, - suppressEncryption) { - var tableOffset = xrefEntry.offset; - var stream = this.fetch(new Ref(tableOffset, 0)); - if (!isStream(stream)) { - error('bad ObjStm stream'); - } - var first = stream.dict.get('First'); - var n = stream.dict.get('N'); - if (!isInt(first) || !isInt(n)) { - error('invalid first and n parameters for ObjStm stream'); - } - var parser = new Parser(new Lexer(stream), false, this); - parser.allowStreams = true; - var i, entries = [], num, nums = []; - // read the object numbers to populate cache - for (i = 0; i < n; ++i) { - num = parser.getObj(); - if (!isInt(num)) { - error('invalid object number in the ObjStm stream: ' + num); - } - nums.push(num); - var offset = parser.getObj(); - if (!isInt(offset)) { - error('invalid object offset in the ObjStm stream: ' + offset); - } - } - // read stream objects for cache - for (i = 0; i < n; ++i) { - entries.push(parser.getObj()); - num = nums[i]; - var entry = this.entries[num]; - if (entry && entry.offset === tableOffset && entry.gen === i) { - this.cache[num] = entries[i]; - } - } - xrefEntry = entries[xrefEntry.gen]; - if (xrefEntry === undefined) { - error('bad XRef entry for compressed object'); - } - return xrefEntry; - }, - - fetchIfRefAsync: function XRef_fetchIfRefAsync(obj) { - if (!isRef(obj)) { - return Promise.resolve(obj); - } - return this.fetchAsync(obj); - }, - - fetchAsync: function XRef_fetchAsync(ref, suppressEncryption) { - var streamManager = this.stream.manager; - var xref = this; - return new Promise(function tryFetch(resolve, reject) { - try { - resolve(xref.fetch(ref, suppressEncryption)); - } catch (e) { - if (e instanceof MissingDataException) { - streamManager.requestRange(e.begin, e.end).then(function () { - tryFetch(resolve, reject); - }, reject); - return; - } - reject(e); - } - }); - }, - - getCatalogObj: function XRef_getCatalogObj() { - return this.root; - } - }; - - return XRef; -})(); - -/** - * A NameTree is like a Dict but has some advantageous properties, see the - * spec (7.9.6) for more details. - * TODO: implement all the Dict functions and make this more efficent. - */ -var NameTree = (function NameTreeClosure() { - function NameTree(root, xref) { - this.root = root; - this.xref = xref; - } - - NameTree.prototype = { - getAll: function NameTree_getAll() { - var dict = {}; - if (!this.root) { - return dict; - } - var xref = this.xref; - // reading name tree - var processed = new RefSet(); - processed.put(this.root); - var queue = [this.root]; - while (queue.length > 0) { - var i, n; - var obj = xref.fetchIfRef(queue.shift()); - if (!isDict(obj)) { - continue; - } - if (obj.has('Kids')) { - var kids = obj.get('Kids'); - for (i = 0, n = kids.length; i < n; i++) { - var kid = kids[i]; - if (processed.has(kid)) { - error('invalid destinations'); - } - queue.push(kid); - processed.put(kid); - } - continue; - } - var names = obj.get('Names'); - if (names) { - for (i = 0, n = names.length; i < n; i += 2) { - dict[xref.fetchIfRef(names[i])] = xref.fetchIfRef(names[i + 1]); - } - } - } - return dict; - }, - - get: function NameTree_get(destinationId) { - if (!this.root) { - return null; - } - - var xref = this.xref; - var kidsOrNames = xref.fetchIfRef(this.root); - var loopCount = 0; - var MAX_NAMES_LEVELS = 10; - var l, r, m; - - // Perform a binary search to quickly find the entry that - // contains the named destination we are looking for. - while (kidsOrNames.has('Kids')) { - loopCount++; - if (loopCount > MAX_NAMES_LEVELS) { - warn('Search depth limit for named destionations has been reached.'); - return null; - } - - var kids = kidsOrNames.get('Kids'); - if (!isArray(kids)) { - return null; - } - - l = 0; - r = kids.length - 1; - while (l <= r) { - m = (l + r) >> 1; - var kid = xref.fetchIfRef(kids[m]); - var limits = kid.get('Limits'); - - if (destinationId < xref.fetchIfRef(limits[0])) { - r = m - 1; - } else if (destinationId > xref.fetchIfRef(limits[1])) { - l = m + 1; - } else { - kidsOrNames = xref.fetchIfRef(kids[m]); - break; - } - } - if (l > r) { - return null; - } - } - - // If we get here, then we have found the right entry. Now - // go through the named destinations in the Named dictionary - // until we find the exact destination we're looking for. - var names = kidsOrNames.get('Names'); - if (isArray(names)) { - // Perform a binary search to reduce the lookup time. - l = 0; - r = names.length - 2; - while (l <= r) { - // Check only even indices (0, 2, 4, ...) because the - // odd indices contain the actual D array. - m = (l + r) & ~1; - if (destinationId < xref.fetchIfRef(names[m])) { - r = m - 2; - } else if (destinationId > xref.fetchIfRef(names[m])) { - l = m + 2; - } else { - return xref.fetchIfRef(names[m + 1]); - } - } - } - return null; - } - }; - return NameTree; -})(); - -/** - * "A PDF file can refer to the contents of another file by using a File - * Specification (PDF 1.1)", see the spec (7.11) for more details. - * NOTE: Only embedded files are supported (as part of the attachments support) - * TODO: support the 'URL' file system (with caching if !/V), portable - * collections attributes and related files (/RF) - */ -var FileSpec = (function FileSpecClosure() { - function FileSpec(root, xref) { - if (!root || !isDict(root)) { - return; - } - this.xref = xref; - this.root = root; - if (root.has('FS')) { - this.fs = root.get('FS'); - } - this.description = root.has('Desc') ? - stringToPDFString(root.get('Desc')) : - ''; - if (root.has('RF')) { - warn('Related file specifications are not supported'); - } - this.contentAvailable = true; - if (!root.has('EF')) { - this.contentAvailable = false; - warn('Non-embedded file specifications are not supported'); - } - } - - function pickPlatformItem(dict) { - // Look for the filename in this order: - // UF, F, Unix, Mac, DOS - if (dict.has('UF')) { - return dict.get('UF'); - } else if (dict.has('F')) { - return dict.get('F'); - } else if (dict.has('Unix')) { - return dict.get('Unix'); - } else if (dict.has('Mac')) { - return dict.get('Mac'); - } else if (dict.has('DOS')) { - return dict.get('DOS'); - } else { - return null; - } - } - - FileSpec.prototype = { - get filename() { - if (!this._filename && this.root) { - var filename = pickPlatformItem(this.root) || 'unnamed'; - this._filename = stringToPDFString(filename). - replace(/\\\\/g, '\\'). - replace(/\\\//g, '/'). - replace(/\\/g, '/'); - } - return this._filename; - }, - get content() { - if (!this.contentAvailable) { - return null; - } - if (!this.contentRef && this.root) { - this.contentRef = pickPlatformItem(this.root.get('EF')); - } - var content = null; - if (this.contentRef) { - var xref = this.xref; - var fileObj = xref.fetchIfRef(this.contentRef); - if (fileObj && isStream(fileObj)) { - content = fileObj.getBytes(); - } else { - warn('Embedded file specification points to non-existing/invalid ' + - 'content'); - } - } else { - warn('Embedded file specification does not have a content'); - } - return content; - }, - get serializable() { - return { - filename: this.filename, - content: this.content - }; - } - }; - return FileSpec; -})(); - -/** - * A helper for loading missing data in object graphs. It traverses the graph - * depth first and queues up any objects that have missing data. Once it has - * has traversed as many objects that are available it attempts to bundle the - * missing data requests and then resume from the nodes that weren't ready. - * - * NOTE: It provides protection from circular references by keeping track of - * of loaded references. However, you must be careful not to load any graphs - * that have references to the catalog or other pages since that will cause the - * entire PDF document object graph to be traversed. - */ -var ObjectLoader = (function() { - function mayHaveChildren(value) { - return isRef(value) || isDict(value) || isArray(value) || isStream(value); - } - - function addChildren(node, nodesToVisit) { - var value; - if (isDict(node) || isStream(node)) { - var map; - if (isDict(node)) { - map = node.map; - } else { - map = node.dict.map; - } - for (var key in map) { - value = map[key]; - if (mayHaveChildren(value)) { - nodesToVisit.push(value); - } - } - } else if (isArray(node)) { - for (var i = 0, ii = node.length; i < ii; i++) { - value = node[i]; - if (mayHaveChildren(value)) { - nodesToVisit.push(value); - } - } - } - } - - function ObjectLoader(obj, keys, xref) { - this.obj = obj; - this.keys = keys; - this.xref = xref; - this.refSet = null; - this.capability = null; - } - - ObjectLoader.prototype = { - load: function ObjectLoader_load() { - var keys = this.keys; - this.capability = createPromiseCapability(); - // Don't walk the graph if all the data is already loaded. - if (!(this.xref.stream instanceof ChunkedStream) || - this.xref.stream.getMissingChunks().length === 0) { - this.capability.resolve(); - return this.capability.promise; - } - - this.refSet = new RefSet(); - // Setup the initial nodes to visit. - var nodesToVisit = []; - for (var i = 0; i < keys.length; i++) { - nodesToVisit.push(this.obj[keys[i]]); - } - - this._walk(nodesToVisit); - return this.capability.promise; - }, - - _walk: function ObjectLoader_walk(nodesToVisit) { - var nodesToRevisit = []; - var pendingRequests = []; - // DFS walk of the object graph. - while (nodesToVisit.length) { - var currentNode = nodesToVisit.pop(); - - // Only references or chunked streams can cause missing data exceptions. - if (isRef(currentNode)) { - // Skip nodes that have already been visited. - if (this.refSet.has(currentNode)) { - continue; - } - try { - var ref = currentNode; - this.refSet.put(ref); - currentNode = this.xref.fetch(currentNode); - } catch (e) { - if (!(e instanceof MissingDataException)) { - throw e; - } - nodesToRevisit.push(currentNode); - pendingRequests.push({ begin: e.begin, end: e.end }); - } - } - if (currentNode && currentNode.getBaseStreams) { - var baseStreams = currentNode.getBaseStreams(); - var foundMissingData = false; - for (var i = 0; i < baseStreams.length; i++) { - var stream = baseStreams[i]; - if (stream.getMissingChunks && stream.getMissingChunks().length) { - foundMissingData = true; - pendingRequests.push({ - begin: stream.start, - end: stream.end - }); - } - } - if (foundMissingData) { - nodesToRevisit.push(currentNode); - } - } - - addChildren(currentNode, nodesToVisit); - } - - if (pendingRequests.length) { - this.xref.stream.manager.requestRanges(pendingRequests).then( - function pendingRequestCallback() { - nodesToVisit = nodesToRevisit; - for (var i = 0; i < nodesToRevisit.length; i++) { - var node = nodesToRevisit[i]; - // Remove any reference nodes from the currrent refset so they - // aren't skipped when we revist them. - if (isRef(node)) { - this.refSet.remove(node); - } - } - this._walk(nodesToVisit); - }.bind(this), this.capability.reject); - return; - } - // Everything is loaded. - this.refSet = null; - this.capability.resolve(); - } - }; - - return ObjectLoader; -})(); - - -var ISOAdobeCharset = [ - '.notdef', 'space', 'exclam', 'quotedbl', 'numbersign', 'dollar', - 'percent', 'ampersand', 'quoteright', 'parenleft', 'parenright', - 'asterisk', 'plus', 'comma', 'hyphen', 'period', 'slash', 'zero', - 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', - 'nine', 'colon', 'semicolon', 'less', 'equal', 'greater', 'question', - 'at', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', - 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', - 'bracketleft', 'backslash', 'bracketright', 'asciicircum', 'underscore', - 'quoteleft', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', - 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', - 'braceleft', 'bar', 'braceright', 'asciitilde', 'exclamdown', 'cent', - 'sterling', 'fraction', 'yen', 'florin', 'section', 'currency', - 'quotesingle', 'quotedblleft', 'guillemotleft', 'guilsinglleft', - 'guilsinglright', 'fi', 'fl', 'endash', 'dagger', 'daggerdbl', - 'periodcentered', 'paragraph', 'bullet', 'quotesinglbase', - 'quotedblbase', 'quotedblright', 'guillemotright', 'ellipsis', - 'perthousand', 'questiondown', 'grave', 'acute', 'circumflex', 'tilde', - 'macron', 'breve', 'dotaccent', 'dieresis', 'ring', 'cedilla', - 'hungarumlaut', 'ogonek', 'caron', 'emdash', 'AE', 'ordfeminine', - 'Lslash', 'Oslash', 'OE', 'ordmasculine', 'ae', 'dotlessi', 'lslash', - 'oslash', 'oe', 'germandbls', 'onesuperior', 'logicalnot', 'mu', - 'trademark', 'Eth', 'onehalf', 'plusminus', 'Thorn', 'onequarter', - 'divide', 'brokenbar', 'degree', 'thorn', 'threequarters', 'twosuperior', - 'registered', 'minus', 'eth', 'multiply', 'threesuperior', 'copyright', - 'Aacute', 'Acircumflex', 'Adieresis', 'Agrave', 'Aring', 'Atilde', - 'Ccedilla', 'Eacute', 'Ecircumflex', 'Edieresis', 'Egrave', 'Iacute', - 'Icircumflex', 'Idieresis', 'Igrave', 'Ntilde', 'Oacute', 'Ocircumflex', - 'Odieresis', 'Ograve', 'Otilde', 'Scaron', 'Uacute', 'Ucircumflex', - 'Udieresis', 'Ugrave', 'Yacute', 'Ydieresis', 'Zcaron', 'aacute', - 'acircumflex', 'adieresis', 'agrave', 'aring', 'atilde', 'ccedilla', - 'eacute', 'ecircumflex', 'edieresis', 'egrave', 'iacute', 'icircumflex', - 'idieresis', 'igrave', 'ntilde', 'oacute', 'ocircumflex', 'odieresis', - 'ograve', 'otilde', 'scaron', 'uacute', 'ucircumflex', 'udieresis', - 'ugrave', 'yacute', 'ydieresis', 'zcaron' -]; - -var ExpertCharset = [ - '.notdef', 'space', 'exclamsmall', 'Hungarumlautsmall', 'dollaroldstyle', - 'dollarsuperior', 'ampersandsmall', 'Acutesmall', 'parenleftsuperior', - 'parenrightsuperior', 'twodotenleader', 'onedotenleader', 'comma', - 'hyphen', 'period', 'fraction', 'zerooldstyle', 'oneoldstyle', - 'twooldstyle', 'threeoldstyle', 'fouroldstyle', 'fiveoldstyle', - 'sixoldstyle', 'sevenoldstyle', 'eightoldstyle', 'nineoldstyle', - 'colon', 'semicolon', 'commasuperior', 'threequartersemdash', - 'periodsuperior', 'questionsmall', 'asuperior', 'bsuperior', - 'centsuperior', 'dsuperior', 'esuperior', 'isuperior', 'lsuperior', - 'msuperior', 'nsuperior', 'osuperior', 'rsuperior', 'ssuperior', - 'tsuperior', 'ff', 'fi', 'fl', 'ffi', 'ffl', 'parenleftinferior', - 'parenrightinferior', 'Circumflexsmall', 'hyphensuperior', 'Gravesmall', - 'Asmall', 'Bsmall', 'Csmall', 'Dsmall', 'Esmall', 'Fsmall', 'Gsmall', - 'Hsmall', 'Ismall', 'Jsmall', 'Ksmall', 'Lsmall', 'Msmall', 'Nsmall', - 'Osmall', 'Psmall', 'Qsmall', 'Rsmall', 'Ssmall', 'Tsmall', 'Usmall', - 'Vsmall', 'Wsmall', 'Xsmall', 'Ysmall', 'Zsmall', 'colonmonetary', - 'onefitted', 'rupiah', 'Tildesmall', 'exclamdownsmall', 'centoldstyle', - 'Lslashsmall', 'Scaronsmall', 'Zcaronsmall', 'Dieresissmall', - 'Brevesmall', 'Caronsmall', 'Dotaccentsmall', 'Macronsmall', - 'figuredash', 'hypheninferior', 'Ogoneksmall', 'Ringsmall', - 'Cedillasmall', 'onequarter', 'onehalf', 'threequarters', - 'questiondownsmall', 'oneeighth', 'threeeighths', 'fiveeighths', - 'seveneighths', 'onethird', 'twothirds', 'zerosuperior', 'onesuperior', - 'twosuperior', 'threesuperior', 'foursuperior', 'fivesuperior', - 'sixsuperior', 'sevensuperior', 'eightsuperior', 'ninesuperior', - 'zeroinferior', 'oneinferior', 'twoinferior', 'threeinferior', - 'fourinferior', 'fiveinferior', 'sixinferior', 'seveninferior', - 'eightinferior', 'nineinferior', 'centinferior', 'dollarinferior', - 'periodinferior', 'commainferior', 'Agravesmall', 'Aacutesmall', - 'Acircumflexsmall', 'Atildesmall', 'Adieresissmall', 'Aringsmall', - 'AEsmall', 'Ccedillasmall', 'Egravesmall', 'Eacutesmall', - 'Ecircumflexsmall', 'Edieresissmall', 'Igravesmall', 'Iacutesmall', - 'Icircumflexsmall', 'Idieresissmall', 'Ethsmall', 'Ntildesmall', - 'Ogravesmall', 'Oacutesmall', 'Ocircumflexsmall', 'Otildesmall', - 'Odieresissmall', 'OEsmall', 'Oslashsmall', 'Ugravesmall', 'Uacutesmall', - 'Ucircumflexsmall', 'Udieresissmall', 'Yacutesmall', 'Thornsmall', - 'Ydieresissmall' -]; - -var ExpertSubsetCharset = [ - '.notdef', 'space', 'dollaroldstyle', 'dollarsuperior', - 'parenleftsuperior', 'parenrightsuperior', 'twodotenleader', - 'onedotenleader', 'comma', 'hyphen', 'period', 'fraction', - 'zerooldstyle', 'oneoldstyle', 'twooldstyle', 'threeoldstyle', - 'fouroldstyle', 'fiveoldstyle', 'sixoldstyle', 'sevenoldstyle', - 'eightoldstyle', 'nineoldstyle', 'colon', 'semicolon', 'commasuperior', - 'threequartersemdash', 'periodsuperior', 'asuperior', 'bsuperior', - 'centsuperior', 'dsuperior', 'esuperior', 'isuperior', 'lsuperior', - 'msuperior', 'nsuperior', 'osuperior', 'rsuperior', 'ssuperior', - 'tsuperior', 'ff', 'fi', 'fl', 'ffi', 'ffl', 'parenleftinferior', - 'parenrightinferior', 'hyphensuperior', 'colonmonetary', 'onefitted', - 'rupiah', 'centoldstyle', 'figuredash', 'hypheninferior', 'onequarter', - 'onehalf', 'threequarters', 'oneeighth', 'threeeighths', 'fiveeighths', - 'seveneighths', 'onethird', 'twothirds', 'zerosuperior', 'onesuperior', - 'twosuperior', 'threesuperior', 'foursuperior', 'fivesuperior', - 'sixsuperior', 'sevensuperior', 'eightsuperior', 'ninesuperior', - 'zeroinferior', 'oneinferior', 'twoinferior', 'threeinferior', - 'fourinferior', 'fiveinferior', 'sixinferior', 'seveninferior', - 'eightinferior', 'nineinferior', 'centinferior', 'dollarinferior', - 'periodinferior', 'commainferior' -]; - - -var DEFAULT_ICON_SIZE = 22; // px - -/** - * @class - * @alias AnnotationFactory - */ -function AnnotationFactory() {} -AnnotationFactory.prototype = /** @lends AnnotationFactory.prototype */ { - /** - * @param {XRef} xref - * @param {Object} ref - * @returns {Annotation} - */ - create: function AnnotationFactory_create(xref, ref) { - var dict = xref.fetchIfRef(ref); - if (!isDict(dict)) { - return; - } - - // Determine the annotation's subtype. - var subtype = dict.get('Subtype'); - subtype = isName(subtype) ? subtype.name : ''; - - // Return the right annotation object based on the subtype and field type. - var parameters = { - dict: dict, - ref: ref - }; - - switch (subtype) { - case 'Link': - return new LinkAnnotation(parameters); - - case 'Text': - return new TextAnnotation(parameters); - - case 'Widget': - var fieldType = Util.getInheritableProperty(dict, 'FT'); - if (isName(fieldType) && fieldType.name === 'Tx') { - return new TextWidgetAnnotation(parameters); - } - return new WidgetAnnotation(parameters); - - default: - warn('Unimplemented annotation type "' + subtype + '", ' + - 'falling back to base annotation'); - return new Annotation(parameters); - } - } -}; - -var Annotation = (function AnnotationClosure() { - // 12.5.5: Algorithm: Appearance streams - function getTransformMatrix(rect, bbox, matrix) { - var bounds = Util.getAxialAlignedBoundingBox(bbox, matrix); - var minX = bounds[0]; - var minY = bounds[1]; - var maxX = bounds[2]; - var maxY = bounds[3]; - - if (minX === maxX || minY === maxY) { - // From real-life file, bbox was [0, 0, 0, 0]. In this case, - // just apply the transform for rect - return [1, 0, 0, 1, rect[0], rect[1]]; - } - - var xRatio = (rect[2] - rect[0]) / (maxX - minX); - var yRatio = (rect[3] - rect[1]) / (maxY - minY); - return [ - xRatio, - 0, - 0, - yRatio, - rect[0] - minX * xRatio, - rect[1] - minY * yRatio - ]; - } - - function getDefaultAppearance(dict) { - var appearanceState = dict.get('AP'); - if (!isDict(appearanceState)) { - return; - } - - var appearance; - var appearances = appearanceState.get('N'); - if (isDict(appearances)) { - var as = dict.get('AS'); - if (as && appearances.has(as.name)) { - appearance = appearances.get(as.name); - } - } else { - appearance = appearances; - } - return appearance; - } - - function Annotation(params) { - var dict = params.dict; - - this.setFlags(dict.get('F')); - this.setRectangle(dict.get('Rect')); - this.setColor(dict.get('C')); - this.setBorderStyle(dict); - this.appearance = getDefaultAppearance(dict); - - // Expose public properties using a data object. - this.data = {}; - this.data.id = params.ref.num; - this.data.subtype = dict.get('Subtype').name; - this.data.annotationFlags = this.flags; - this.data.rect = this.rectangle; - this.data.color = this.color; - this.data.borderStyle = this.borderStyle; - this.data.hasAppearance = !!this.appearance; - } - - Annotation.prototype = { - /** - * @return {boolean} - */ - get viewable() { - if (this.flags) { - return !this.hasFlag(AnnotationFlag.INVISIBLE) && - !this.hasFlag(AnnotationFlag.HIDDEN) && - !this.hasFlag(AnnotationFlag.NOVIEW); - } - return true; - }, - - /** - * @return {boolean} - */ - get printable() { - if (this.flags) { - return this.hasFlag(AnnotationFlag.PRINT) && - !this.hasFlag(AnnotationFlag.INVISIBLE) && - !this.hasFlag(AnnotationFlag.HIDDEN); - } - return false; - }, - - /** - * Set the flags. - * - * @public - * @memberof Annotation - * @param {number} flags - Unsigned 32-bit integer specifying annotation - * characteristics - * @see {@link shared/util.js} - */ - setFlags: function Annotation_setFlags(flags) { - if (isInt(flags)) { - this.flags = flags; - } else { - this.flags = 0; - } - }, - - /** - * Check if a provided flag is set. - * - * @public - * @memberof Annotation - * @param {number} flag - Hexadecimal representation for an annotation - * characteristic - * @return {boolean} - * @see {@link shared/util.js} - */ - hasFlag: function Annotation_hasFlag(flag) { - if (this.flags) { - return (this.flags & flag) > 0; - } - return false; - }, - - /** - * Set the rectangle. - * - * @public - * @memberof Annotation - * @param {Array} rectangle - The rectangle array with exactly four entries - */ - setRectangle: function Annotation_setRectangle(rectangle) { - if (isArray(rectangle) && rectangle.length === 4) { - this.rectangle = Util.normalizeRect(rectangle); - } else { - this.rectangle = [0, 0, 0, 0]; - } - }, - - /** - * Set the color and take care of color space conversion. - * - * @public - * @memberof Annotation - * @param {Array} color - The color array containing either 0 - * (transparent), 1 (grayscale), 3 (RGB) or - * 4 (CMYK) elements - */ - setColor: function Annotation_setColor(color) { - var rgbColor = new Uint8Array(3); // Black in RGB color space (default) - if (!isArray(color)) { - this.color = rgbColor; - return; - } - - switch (color.length) { - case 0: // Transparent, which we indicate with a null value - this.color = null; - break; - - case 1: // Convert grayscale to RGB - ColorSpace.singletons.gray.getRgbItem(color, 0, rgbColor, 0); - this.color = rgbColor; - break; - - case 3: // Convert RGB percentages to RGB - ColorSpace.singletons.rgb.getRgbItem(color, 0, rgbColor, 0); - this.color = rgbColor; - break; - - case 4: // Convert CMYK to RGB - ColorSpace.singletons.cmyk.getRgbItem(color, 0, rgbColor, 0); - this.color = rgbColor; - break; - - default: - this.color = rgbColor; - break; - } - }, - - /** - * Set the border style (as AnnotationBorderStyle object). - * - * @public - * @memberof Annotation - * @param {Dict} borderStyle - The border style dictionary - */ - setBorderStyle: function Annotation_setBorderStyle(borderStyle) { - this.borderStyle = new AnnotationBorderStyle(); - if (!isDict(borderStyle)) { - return; - } - if (borderStyle.has('BS')) { - var dict = borderStyle.get('BS'); - var dictType; - - if (!dict.has('Type') || (isName(dictType = dict.get('Type')) && - dictType.name === 'Border')) { - this.borderStyle.setWidth(dict.get('W')); - this.borderStyle.setStyle(dict.get('S')); - this.borderStyle.setDashArray(dict.get('D')); - } - } else if (borderStyle.has('Border')) { - var array = borderStyle.get('Border'); - if (isArray(array) && array.length >= 3) { - this.borderStyle.setHorizontalCornerRadius(array[0]); - this.borderStyle.setVerticalCornerRadius(array[1]); - this.borderStyle.setWidth(array[2]); - - if (array.length === 4) { // Dash array available - this.borderStyle.setDashArray(array[3]); - } - } - } else { - // There are no border entries in the dictionary. According to the - // specification, we should draw a solid border of width 1 in that - // case, but Adobe Reader did not implement that part of the - // specification and instead draws no border at all, so we do the same. - // See also https://github.com/mozilla/pdf.js/issues/6179. - this.borderStyle.setWidth(0); - } - }, - - loadResources: function Annotation_loadResources(keys) { - return new Promise(function (resolve, reject) { - this.appearance.dict.getAsync('Resources').then(function (resources) { - if (!resources) { - resolve(); - return; - } - var objectLoader = new ObjectLoader(resources.map, - keys, - resources.xref); - objectLoader.load().then(function() { - resolve(resources); - }, reject); - }, reject); - }.bind(this)); - }, - - getOperatorList: function Annotation_getOperatorList(evaluator, task) { - if (!this.appearance) { - return Promise.resolve(new OperatorList()); - } - - var data = this.data; - var appearanceDict = this.appearance.dict; - var resourcesPromise = this.loadResources([ - 'ExtGState', - 'ColorSpace', - 'Pattern', - 'Shading', - 'XObject', - 'Font' - // ProcSet - // Properties - ]); - var bbox = appearanceDict.get('BBox') || [0, 0, 1, 1]; - var matrix = appearanceDict.get('Matrix') || [1, 0, 0, 1, 0 ,0]; - var transform = getTransformMatrix(data.rect, bbox, matrix); - var self = this; - - return resourcesPromise.then(function(resources) { - var opList = new OperatorList(); - opList.addOp(OPS.beginAnnotation, [data.rect, transform, matrix]); - return evaluator.getOperatorList(self.appearance, task, - resources, opList). - then(function () { - opList.addOp(OPS.endAnnotation, []); - self.appearance.reset(); - return opList; - }); - }); - } - }; - - Annotation.appendToOperatorList = function Annotation_appendToOperatorList( - annotations, opList, partialEvaluator, task, intent) { - var annotationPromises = []; - for (var i = 0, n = annotations.length; i < n; ++i) { - if ((intent === 'display' && annotations[i].viewable) || - (intent === 'print' && annotations[i].printable)) { - annotationPromises.push( - annotations[i].getOperatorList(partialEvaluator, task)); - } - } - return Promise.all(annotationPromises).then(function(operatorLists) { - opList.addOp(OPS.beginAnnotations, []); - for (var i = 0, n = operatorLists.length; i < n; ++i) { - opList.addOpList(operatorLists[i]); - } - opList.addOp(OPS.endAnnotations, []); - }); - }; - - return Annotation; -})(); - -/** - * Contains all data regarding an annotation's border style. - * - * @class - */ -var AnnotationBorderStyle = (function AnnotationBorderStyleClosure() { - /** - * @constructor - * @private - */ - function AnnotationBorderStyle() { - this.width = 1; - this.style = AnnotationBorderStyleType.SOLID; - this.dashArray = [3]; - this.horizontalCornerRadius = 0; - this.verticalCornerRadius = 0; - } - - AnnotationBorderStyle.prototype = { - /** - * Set the width. - * - * @public - * @memberof AnnotationBorderStyle - * @param {integer} width - The width - */ - setWidth: function AnnotationBorderStyle_setWidth(width) { - if (width === (width | 0)) { - this.width = width; - } - }, - - /** - * Set the style. - * - * @public - * @memberof AnnotationBorderStyle - * @param {Object} style - The style object - * @see {@link shared/util.js} - */ - setStyle: function AnnotationBorderStyle_setStyle(style) { - if (!style) { - return; - } - switch (style.name) { - case 'S': - this.style = AnnotationBorderStyleType.SOLID; - break; - - case 'D': - this.style = AnnotationBorderStyleType.DASHED; - break; - - case 'B': - this.style = AnnotationBorderStyleType.BEVELED; - break; - - case 'I': - this.style = AnnotationBorderStyleType.INSET; - break; - - case 'U': - this.style = AnnotationBorderStyleType.UNDERLINE; - break; - - default: - break; - } - }, - - /** - * Set the dash array. - * - * @public - * @memberof AnnotationBorderStyle - * @param {Array} dashArray - The dash array with at least one element - */ - setDashArray: function AnnotationBorderStyle_setDashArray(dashArray) { - // We validate the dash array, but we do not use it because CSS does not - // allow us to change spacing of dashes. For more information, visit - // http://www.w3.org/TR/css3-background/#the-border-style. - if (isArray(dashArray) && dashArray.length > 0) { - // According to the PDF specification: the elements in a dashArray - // shall be numbers that are nonnegative and not all equal to zero. - var isValid = true; - var allZeros = true; - for (var i = 0, len = dashArray.length; i < len; i++) { - var element = dashArray[i]; - var validNumber = (+element >= 0); - if (!validNumber) { - isValid = false; - break; - } else if (element > 0) { - allZeros = false; - } - } - if (isValid && !allZeros) { - this.dashArray = dashArray; - } else { - this.width = 0; // Adobe behavior when the array is invalid. - } - } else if (dashArray) { - this.width = 0; // Adobe behavior when the array is invalid. - } - }, - - /** - * Set the horizontal corner radius (from a Border dictionary). - * - * @public - * @memberof AnnotationBorderStyle - * @param {integer} radius - The horizontal corner radius - */ - setHorizontalCornerRadius: - function AnnotationBorderStyle_setHorizontalCornerRadius(radius) { - if (radius === (radius | 0)) { - this.horizontalCornerRadius = radius; - } - }, - - /** - * Set the vertical corner radius (from a Border dictionary). - * - * @public - * @memberof AnnotationBorderStyle - * @param {integer} radius - The vertical corner radius - */ - setVerticalCornerRadius: - function AnnotationBorderStyle_setVerticalCornerRadius(radius) { - if (radius === (radius | 0)) { - this.verticalCornerRadius = radius; - } - } - }; - - return AnnotationBorderStyle; -})(); - -var WidgetAnnotation = (function WidgetAnnotationClosure() { - function WidgetAnnotation(params) { - Annotation.call(this, params); - - var dict = params.dict; - var data = this.data; - - data.fieldValue = stringToPDFString( - Util.getInheritableProperty(dict, 'V') || ''); - data.alternativeText = stringToPDFString(dict.get('TU') || ''); - data.defaultAppearance = Util.getInheritableProperty(dict, 'DA') || ''; - var fieldType = Util.getInheritableProperty(dict, 'FT'); - data.fieldType = isName(fieldType) ? fieldType.name : ''; - data.fieldFlags = Util.getInheritableProperty(dict, 'Ff') || 0; - this.fieldResources = Util.getInheritableProperty(dict, 'DR') || Dict.empty; - - // Hide unsupported Widget signatures. - if (data.fieldType === 'Sig') { - warn('unimplemented annotation type: Widget signature'); - this.setFlags(AnnotationFlag.HIDDEN); - } - - // Building the full field name by collecting the field and - // its ancestors 'T' data and joining them using '.'. - var fieldName = []; - var namedItem = dict; - var ref = params.ref; - while (namedItem) { - var parent = namedItem.get('Parent'); - var parentRef = namedItem.getRaw('Parent'); - var name = namedItem.get('T'); - if (name) { - fieldName.unshift(stringToPDFString(name)); - } else if (parent && ref) { - // The field name is absent, that means more than one field - // with the same name may exist. Replacing the empty name - // with the '`' plus index in the parent's 'Kids' array. - // This is not in the PDF spec but necessary to id the - // the input controls. - var kids = parent.get('Kids'); - var j, jj; - for (j = 0, jj = kids.length; j < jj; j++) { - var kidRef = kids[j]; - if (kidRef.num === ref.num && kidRef.gen === ref.gen) { - break; - } - } - fieldName.unshift('`' + j); - } - namedItem = parent; - ref = parentRef; - } - data.fullName = fieldName.join('.'); - } - - Util.inherit(WidgetAnnotation, Annotation, {}); - - return WidgetAnnotation; -})(); - -var TextWidgetAnnotation = (function TextWidgetAnnotationClosure() { - function TextWidgetAnnotation(params) { - WidgetAnnotation.call(this, params); - - this.data.textAlignment = Util.getInheritableProperty(params.dict, 'Q'); - this.data.annotationType = AnnotationType.WIDGET; - this.data.hasHtml = !this.data.hasAppearance && !!this.data.fieldValue; - } - - Util.inherit(TextWidgetAnnotation, WidgetAnnotation, { - getOperatorList: function TextWidgetAnnotation_getOperatorList(evaluator, - task) { - if (this.appearance) { - return Annotation.prototype.getOperatorList.call(this, evaluator, task); - } - - var opList = new OperatorList(); - var data = this.data; - - // Even if there is an appearance stream, ignore it. This is the - // behaviour used by Adobe Reader. - if (!data.defaultAppearance) { - return Promise.resolve(opList); - } - - var stream = new Stream(stringToBytes(data.defaultAppearance)); - return evaluator.getOperatorList(stream, task, - this.fieldResources, opList). - then(function () { - return opList; - }); - } - }); - - return TextWidgetAnnotation; -})(); - -var TextAnnotation = (function TextAnnotationClosure() { - function TextAnnotation(params) { - Annotation.call(this, params); - - var dict = params.dict; - var data = this.data; - - var content = dict.get('Contents'); - var title = dict.get('T'); - data.annotationType = AnnotationType.TEXT; - data.content = stringToPDFString(content || ''); - data.title = stringToPDFString(title || ''); - data.hasHtml = true; - - if (data.hasAppearance) { - data.name = 'NoIcon'; - } else { - data.rect[1] = data.rect[3] - DEFAULT_ICON_SIZE; - data.rect[2] = data.rect[0] + DEFAULT_ICON_SIZE; - data.name = dict.has('Name') ? dict.get('Name').name : 'Note'; - } - - if (dict.has('C')) { - data.hasBgColor = true; - } - } - - Util.inherit(TextAnnotation, Annotation, {}); - - return TextAnnotation; -})(); - -var LinkAnnotation = (function LinkAnnotationClosure() { - function LinkAnnotation(params) { - Annotation.call(this, params); - - var dict = params.dict; - var data = this.data; - data.annotationType = AnnotationType.LINK; - data.hasHtml = true; - - var action = dict.get('A'); - if (action && isDict(action)) { - var linkType = action.get('S').name; - if (linkType === 'URI') { - var url = action.get('URI'); - if (isName(url)) { - // Some bad PDFs do not put parentheses around relative URLs. - url = '/' + url.name; - } else if (url) { - url = addDefaultProtocolToUrl(url); - } - // TODO: pdf spec mentions urls can be relative to a Base - // entry in the dictionary. - if (!isValidUrl(url, false)) { - url = ''; - } - // According to ISO 32000-1:2008, section 12.6.4.7, - // URI should to be encoded in 7-bit ASCII. - // Some bad PDFs may have URIs in UTF-8 encoding, see Bugzilla 1122280. - try { - data.url = stringToUTF8String(url); - } catch (e) { - // Fall back to a simple copy. - data.url = url; - } - } else if (linkType === 'GoTo') { - data.dest = action.get('D'); - } else if (linkType === 'GoToR') { - var urlDict = action.get('F'); - if (isDict(urlDict)) { - // We assume that the 'url' is a Filspec dictionary - // and fetch the url without checking any further - url = urlDict.get('F') || ''; - } - - // TODO: pdf reference says that GoToR - // can also have 'NewWindow' attribute - if (!isValidUrl(url, false)) { - url = ''; - } - data.url = url; - data.dest = action.get('D'); - } else if (linkType === 'Named') { - data.action = action.get('N').name; - } else { - warn('unrecognized link type: ' + linkType); - } - } else if (dict.has('Dest')) { - // simple destination link - var dest = dict.get('Dest'); - data.dest = isName(dest) ? dest.name : dest; - } - } - - // Lets URLs beginning with 'www.' default to using the 'http://' protocol. - function addDefaultProtocolToUrl(url) { - if (url && url.indexOf('www.') === 0) { - return ('http://' + url); - } - return url; - } - - Util.inherit(LinkAnnotation, Annotation, {}); - - return LinkAnnotation; -})(); - - -var PDFFunction = (function PDFFunctionClosure() { - var CONSTRUCT_SAMPLED = 0; - var CONSTRUCT_INTERPOLATED = 2; - var CONSTRUCT_STICHED = 3; - var CONSTRUCT_POSTSCRIPT = 4; - - return { - getSampleArray: function PDFFunction_getSampleArray(size, outputSize, bps, - str) { - var i, ii; - var length = 1; - for (i = 0, ii = size.length; i < ii; i++) { - length *= size[i]; - } - length *= outputSize; - - var array = new Array(length); - var codeSize = 0; - var codeBuf = 0; - // 32 is a valid bps so shifting won't work - var sampleMul = 1.0 / (Math.pow(2.0, bps) - 1); - - var strBytes = str.getBytes((length * bps + 7) / 8); - var strIdx = 0; - for (i = 0; i < length; i++) { - while (codeSize < bps) { - codeBuf <<= 8; - codeBuf |= strBytes[strIdx++]; - codeSize += 8; - } - codeSize -= bps; - array[i] = (codeBuf >> codeSize) * sampleMul; - codeBuf &= (1 << codeSize) - 1; - } - return array; - }, - - getIR: function PDFFunction_getIR(xref, fn) { - var dict = fn.dict; - if (!dict) { - dict = fn; - } - - var types = [this.constructSampled, - null, - this.constructInterpolated, - this.constructStiched, - this.constructPostScript]; - - var typeNum = dict.get('FunctionType'); - var typeFn = types[typeNum]; - if (!typeFn) { - error('Unknown type of function'); - } - - return typeFn.call(this, fn, dict, xref); - }, - - fromIR: function PDFFunction_fromIR(IR) { - var type = IR[0]; - switch (type) { - case CONSTRUCT_SAMPLED: - return this.constructSampledFromIR(IR); - case CONSTRUCT_INTERPOLATED: - return this.constructInterpolatedFromIR(IR); - case CONSTRUCT_STICHED: - return this.constructStichedFromIR(IR); - //case CONSTRUCT_POSTSCRIPT: - default: - return this.constructPostScriptFromIR(IR); - } - }, - - parse: function PDFFunction_parse(xref, fn) { - var IR = this.getIR(xref, fn); - return this.fromIR(IR); - }, - - parseArray: function PDFFunction_parseArray(xref, fnObj) { - if (!isArray(fnObj)) { - // not an array -- parsing as regular function - return this.parse(xref, fnObj); - } - - var fnArray = []; - for (var j = 0, jj = fnObj.length; j < jj; j++) { - var obj = xref.fetchIfRef(fnObj[j]); - fnArray.push(PDFFunction.parse(xref, obj)); - } - return function (src, srcOffset, dest, destOffset) { - for (var i = 0, ii = fnArray.length; i < ii; i++) { - fnArray[i](src, srcOffset, dest, destOffset + i); - } - }; - }, - - constructSampled: function PDFFunction_constructSampled(str, dict) { - function toMultiArray(arr) { - var inputLength = arr.length; - var out = []; - var index = 0; - for (var i = 0; i < inputLength; i += 2) { - out[index] = [arr[i], arr[i + 1]]; - ++index; - } - return out; - } - var domain = dict.get('Domain'); - var range = dict.get('Range'); - - if (!domain || !range) { - error('No domain or range'); - } - - var inputSize = domain.length / 2; - var outputSize = range.length / 2; - - domain = toMultiArray(domain); - range = toMultiArray(range); - - var size = dict.get('Size'); - var bps = dict.get('BitsPerSample'); - var order = dict.get('Order') || 1; - if (order !== 1) { - // No description how cubic spline interpolation works in PDF32000:2008 - // As in poppler, ignoring order, linear interpolation may work as good - info('No support for cubic spline interpolation: ' + order); - } - - var encode = dict.get('Encode'); - if (!encode) { - encode = []; - for (var i = 0; i < inputSize; ++i) { - encode.push(0); - encode.push(size[i] - 1); - } - } - encode = toMultiArray(encode); - - var decode = dict.get('Decode'); - if (!decode) { - decode = range; - } else { - decode = toMultiArray(decode); - } - - var samples = this.getSampleArray(size, outputSize, bps, str); - - return [ - CONSTRUCT_SAMPLED, inputSize, domain, encode, decode, samples, size, - outputSize, Math.pow(2, bps) - 1, range - ]; - }, - - constructSampledFromIR: function PDFFunction_constructSampledFromIR(IR) { - // See chapter 3, page 109 of the PDF reference - function interpolate(x, xmin, xmax, ymin, ymax) { - return ymin + ((x - xmin) * ((ymax - ymin) / (xmax - xmin))); - } - - return function constructSampledFromIRResult(src, srcOffset, - dest, destOffset) { - // See chapter 3, page 110 of the PDF reference. - var m = IR[1]; - var domain = IR[2]; - var encode = IR[3]; - var decode = IR[4]; - var samples = IR[5]; - var size = IR[6]; - var n = IR[7]; - //var mask = IR[8]; - var range = IR[9]; - - // Building the cube vertices: its part and sample index - // http://rjwagner49.com/Mathematics/Interpolation.pdf - var cubeVertices = 1 << m; - var cubeN = new Float64Array(cubeVertices); - var cubeVertex = new Uint32Array(cubeVertices); - var i, j; - for (j = 0; j < cubeVertices; j++) { - cubeN[j] = 1; - } - - var k = n, pos = 1; - // Map x_i to y_j for 0 <= i < m using the sampled function. - for (i = 0; i < m; ++i) { - // x_i' = min(max(x_i, Domain_2i), Domain_2i+1) - var domain_2i = domain[i][0]; - var domain_2i_1 = domain[i][1]; - var xi = Math.min(Math.max(src[srcOffset +i], domain_2i), - domain_2i_1); - - // e_i = Interpolate(x_i', Domain_2i, Domain_2i+1, - // Encode_2i, Encode_2i+1) - var e = interpolate(xi, domain_2i, domain_2i_1, - encode[i][0], encode[i][1]); - - // e_i' = min(max(e_i, 0), Size_i - 1) - var size_i = size[i]; - e = Math.min(Math.max(e, 0), size_i - 1); - - // Adjusting the cube: N and vertex sample index - var e0 = e < size_i - 1 ? Math.floor(e) : e - 1; // e1 = e0 + 1; - var n0 = e0 + 1 - e; // (e1 - e) / (e1 - e0); - var n1 = e - e0; // (e - e0) / (e1 - e0); - var offset0 = e0 * k; - var offset1 = offset0 + k; // e1 * k - for (j = 0; j < cubeVertices; j++) { - if (j & pos) { - cubeN[j] *= n1; - cubeVertex[j] += offset1; - } else { - cubeN[j] *= n0; - cubeVertex[j] += offset0; - } - } - - k *= size_i; - pos <<= 1; - } - - for (j = 0; j < n; ++j) { - // Sum all cube vertices' samples portions - var rj = 0; - for (i = 0; i < cubeVertices; i++) { - rj += samples[cubeVertex[i] + j] * cubeN[i]; - } - - // r_j' = Interpolate(r_j, 0, 2^BitsPerSample - 1, - // Decode_2j, Decode_2j+1) - rj = interpolate(rj, 0, 1, decode[j][0], decode[j][1]); - - // y_j = min(max(r_j, range_2j), range_2j+1) - dest[destOffset + j] = Math.min(Math.max(rj, range[j][0]), - range[j][1]); - } - }; - }, - - constructInterpolated: function PDFFunction_constructInterpolated(str, - dict) { - var c0 = dict.get('C0') || [0]; - var c1 = dict.get('C1') || [1]; - var n = dict.get('N'); - - if (!isArray(c0) || !isArray(c1)) { - error('Illegal dictionary for interpolated function'); - } - - var length = c0.length; - var diff = []; - for (var i = 0; i < length; ++i) { - diff.push(c1[i] - c0[i]); - } - - return [CONSTRUCT_INTERPOLATED, c0, diff, n]; - }, - - constructInterpolatedFromIR: - function PDFFunction_constructInterpolatedFromIR(IR) { - var c0 = IR[1]; - var diff = IR[2]; - var n = IR[3]; - - var length = diff.length; - - return function constructInterpolatedFromIRResult(src, srcOffset, - dest, destOffset) { - var x = n === 1 ? src[srcOffset] : Math.pow(src[srcOffset], n); - - for (var j = 0; j < length; ++j) { - dest[destOffset + j] = c0[j] + (x * diff[j]); - } - }; - }, - - constructStiched: function PDFFunction_constructStiched(fn, dict, xref) { - var domain = dict.get('Domain'); - - if (!domain) { - error('No domain'); - } - - var inputSize = domain.length / 2; - if (inputSize !== 1) { - error('Bad domain for stiched function'); - } - - var fnRefs = dict.get('Functions'); - var fns = []; - for (var i = 0, ii = fnRefs.length; i < ii; ++i) { - fns.push(PDFFunction.getIR(xref, xref.fetchIfRef(fnRefs[i]))); - } - - var bounds = dict.get('Bounds'); - var encode = dict.get('Encode'); - - return [CONSTRUCT_STICHED, domain, bounds, encode, fns]; - }, - - constructStichedFromIR: function PDFFunction_constructStichedFromIR(IR) { - var domain = IR[1]; - var bounds = IR[2]; - var encode = IR[3]; - var fnsIR = IR[4]; - var fns = []; - var tmpBuf = new Float32Array(1); - - for (var i = 0, ii = fnsIR.length; i < ii; i++) { - fns.push(PDFFunction.fromIR(fnsIR[i])); - } - - return function constructStichedFromIRResult(src, srcOffset, - dest, destOffset) { - var clip = function constructStichedFromIRClip(v, min, max) { - if (v > max) { - v = max; - } else if (v < min) { - v = min; - } - return v; - }; - - // clip to domain - var v = clip(src[srcOffset], domain[0], domain[1]); - // calulate which bound the value is in - for (var i = 0, ii = bounds.length; i < ii; ++i) { - if (v < bounds[i]) { - break; - } - } - - // encode value into domain of function - var dmin = domain[0]; - if (i > 0) { - dmin = bounds[i - 1]; - } - var dmax = domain[1]; - if (i < bounds.length) { - dmax = bounds[i]; - } - - var rmin = encode[2 * i]; - var rmax = encode[2 * i + 1]; - - // Prevent the value from becoming NaN as a result - // of division by zero (fixes issue6113.pdf). - tmpBuf[0] = dmin === dmax ? rmin : - rmin + (v - dmin) * (rmax - rmin) / (dmax - dmin); - - // call the appropriate function - fns[i](tmpBuf, 0, dest, destOffset); - }; - }, - - constructPostScript: function PDFFunction_constructPostScript(fn, dict, - xref) { - var domain = dict.get('Domain'); - var range = dict.get('Range'); - - if (!domain) { - error('No domain.'); - } - - if (!range) { - error('No range.'); - } - - var lexer = new PostScriptLexer(fn); - var parser = new PostScriptParser(lexer); - var code = parser.parse(); - - return [CONSTRUCT_POSTSCRIPT, domain, range, code]; - }, - - constructPostScriptFromIR: function PDFFunction_constructPostScriptFromIR( - IR) { - var domain = IR[1]; - var range = IR[2]; - var code = IR[3]; - - var compiled = (new PostScriptCompiler()).compile(code, domain, range); - if (compiled) { - // Compiled function consists of simple expressions such as addition, - // subtraction, Math.max, and also contains 'var' and 'return' - // statements. See the generation in the PostScriptCompiler below. - /*jshint -W054 */ - return new Function('src', 'srcOffset', 'dest', 'destOffset', compiled); - } - - info('Unable to compile PS function'); - - var numOutputs = range.length >> 1; - var numInputs = domain.length >> 1; - var evaluator = new PostScriptEvaluator(code); - // Cache the values for a big speed up, the cache size is limited though - // since the number of possible values can be huge from a PS function. - var cache = {}; - // The MAX_CACHE_SIZE is set to ~4x the maximum number of distinct values - // seen in our tests. - var MAX_CACHE_SIZE = 2048 * 4; - var cache_available = MAX_CACHE_SIZE; - var tmpBuf = new Float32Array(numInputs); - - return function constructPostScriptFromIRResult(src, srcOffset, - dest, destOffset) { - var i, value; - var key = ''; - var input = tmpBuf; - for (i = 0; i < numInputs; i++) { - value = src[srcOffset + i]; - input[i] = value; - key += value + '_'; - } - - var cachedValue = cache[key]; - if (cachedValue !== undefined) { - dest.set(cachedValue, destOffset); - return; - } - - var output = new Float32Array(numOutputs); - var stack = evaluator.execute(input); - var stackIndex = stack.length - numOutputs; - for (i = 0; i < numOutputs; i++) { - value = stack[stackIndex + i]; - var bound = range[i * 2]; - if (value < bound) { - value = bound; - } else { - bound = range[i * 2 +1]; - if (value > bound) { - value = bound; - } - } - output[i] = value; - } - if (cache_available > 0) { - cache_available--; - cache[key] = output; - } - dest.set(output, destOffset); - }; - } - }; -})(); - -function isPDFFunction(v) { - var fnDict; - if (typeof v !== 'object') { - return false; - } else if (isDict(v)) { - fnDict = v; - } else if (isStream(v)) { - fnDict = v.dict; - } else { - return false; - } - return fnDict.has('FunctionType'); +function isName(v) { + return v instanceof Name; } -var PostScriptStack = (function PostScriptStackClosure() { - var MAX_STACK_SIZE = 100; - function PostScriptStack(initialStack) { - this.stack = !initialStack ? [] : - Array.prototype.slice.call(initialStack, 0); +function isCmd(v, cmd) { + return v instanceof Cmd && (cmd === undefined || v.cmd === cmd); +} + +function isDict(v, type) { + if (!(v instanceof Dict)) { + return false; + } + if (!type) { + return true; + } + var dictType = v.get('Type'); + return isName(dictType) && dictType.name === type; +} + +function isRef(v) { + return v instanceof Ref; +} + +function isStream(v) { + return typeof v === 'object' && v !== null && v.getBytes !== undefined; +} + +exports.Cmd = Cmd; +exports.Dict = Dict; +exports.Name = Name; +exports.Ref = Ref; +exports.RefSet = RefSet; +exports.RefSetCache = RefSetCache; +exports.isCmd = isCmd; +exports.isDict = isDict; +exports.isName = isName; +exports.isRef = isRef; +exports.isStream = isStream; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreStream = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreJbig2, root.pdfjsCoreJpg, + root.pdfjsCoreJpx); + } +}(this, function (exports, sharedUtil, corePrimitives, coreJbig2, coreJpg, + coreJpx) { + +var Util = sharedUtil.Util; +var error = sharedUtil.error; +var info = sharedUtil.info; +var isArray = sharedUtil.isArray; +var shadow = sharedUtil.shadow; +var warn = sharedUtil.warn; +var Dict = corePrimitives.Dict; +var Jbig2Image = coreJbig2.Jbig2Image; +var JpegImage = coreJpg.JpegImage; +var JpxImage = coreJpx.JpxImage; + +var coreParser; // see _setCoreParser below +var EOF; // = coreParser.EOF; +var Lexer; // = coreParser.Lexer; + +var coreColorSpace; // see _setCoreColorSpace below +var ColorSpace; // = coreColorSpace.ColorSpace; + +var Stream = (function StreamClosure() { + function Stream(arrayBuffer, start, length, dict) { + this.bytes = (arrayBuffer instanceof Uint8Array ? + arrayBuffer : new Uint8Array(arrayBuffer)); + this.start = start || 0; + this.pos = this.start; + this.end = (start + length) || this.bytes.length; + this.dict = dict; } - PostScriptStack.prototype = { - push: function PostScriptStack_push(value) { - if (this.stack.length >= MAX_STACK_SIZE) { - error('PostScript function stack overflow.'); - } - this.stack.push(value); + // required methods for a stream. if a particular stream does not + // implement these, an error should be thrown + Stream.prototype = { + get length() { + return this.end - this.start; }, - pop: function PostScriptStack_pop() { - if (this.stack.length <= 0) { - error('PostScript function stack underflow.'); - } - return this.stack.pop(); + get isEmpty() { + return this.length === 0; }, - copy: function PostScriptStack_copy(n) { - if (this.stack.length + n >= MAX_STACK_SIZE) { - error('PostScript function stack overflow.'); - } - var stack = this.stack; - for (var i = stack.length - n, j = n - 1; j >= 0; j--, i++) { - stack.push(stack[i]); + getByte: function Stream_getByte() { + if (this.pos >= this.end) { + return -1; } + return this.bytes[this.pos++]; }, - index: function PostScriptStack_index(n) { - this.push(this.stack[this.stack.length - n - 1]); + getUint16: function Stream_getUint16() { + var b0 = this.getByte(); + var b1 = this.getByte(); + if (b0 === -1 || b1 === -1) { + return -1; + } + return (b0 << 8) + b1; }, - // rotate the last n stack elements p times - roll: function PostScriptStack_roll(n, p) { - var stack = this.stack; - var l = stack.length - n; - var r = stack.length - 1, c = l + (p - Math.floor(p / n) * n), i, j, t; - for (i = l, j = r; i < j; i++, j--) { - t = stack[i]; stack[i] = stack[j]; stack[j] = t; - } - for (i = l, j = c - 1; i < j; i++, j--) { - t = stack[i]; stack[i] = stack[j]; stack[j] = t; - } - for (i = c, j = r; i < j; i++, j--) { - t = stack[i]; stack[i] = stack[j]; stack[j] = t; - } - } - }; - return PostScriptStack; -})(); -var PostScriptEvaluator = (function PostScriptEvaluatorClosure() { - function PostScriptEvaluator(operators) { - this.operators = operators; - } - PostScriptEvaluator.prototype = { - execute: function PostScriptEvaluator_execute(initialStack) { - var stack = new PostScriptStack(initialStack); - var counter = 0; - var operators = this.operators; - var length = operators.length; - var operator, a, b; - while (counter < length) { - operator = operators[counter++]; - if (typeof operator === 'number') { - // Operator is really an operand and should be pushed to the stack. - stack.push(operator); - continue; - } - switch (operator) { - // non standard ps operators - case 'jz': // jump if false - b = stack.pop(); - a = stack.pop(); - if (!a) { - counter = b; - } - break; - case 'j': // jump - a = stack.pop(); - counter = a; - break; + getInt32: function Stream_getInt32() { + var b0 = this.getByte(); + var b1 = this.getByte(); + var b2 = this.getByte(); + var b3 = this.getByte(); + return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3; + }, + // returns subarray of original buffer + // should only be read + getBytes: function Stream_getBytes(length) { + var bytes = this.bytes; + var pos = this.pos; + var strEnd = this.end; - // all ps operators in alphabetical order (excluding if/ifelse) - case 'abs': - a = stack.pop(); - stack.push(Math.abs(a)); - break; - case 'add': - b = stack.pop(); - a = stack.pop(); - stack.push(a + b); - break; - case 'and': - b = stack.pop(); - a = stack.pop(); - if (isBool(a) && isBool(b)) { - stack.push(a && b); - } else { - stack.push(a & b); - } - break; - case 'atan': - a = stack.pop(); - stack.push(Math.atan(a)); - break; - case 'bitshift': - b = stack.pop(); - a = stack.pop(); - if (a > 0) { - stack.push(a << b); - } else { - stack.push(a >> b); - } - break; - case 'ceiling': - a = stack.pop(); - stack.push(Math.ceil(a)); - break; - case 'copy': - a = stack.pop(); - stack.copy(a); - break; - case 'cos': - a = stack.pop(); - stack.push(Math.cos(a)); - break; - case 'cvi': - a = stack.pop() | 0; - stack.push(a); - break; - case 'cvr': - // noop - break; - case 'div': - b = stack.pop(); - a = stack.pop(); - stack.push(a / b); - break; - case 'dup': - stack.copy(1); - break; - case 'eq': - b = stack.pop(); - a = stack.pop(); - stack.push(a === b); - break; - case 'exch': - stack.roll(2, 1); - break; - case 'exp': - b = stack.pop(); - a = stack.pop(); - stack.push(Math.pow(a, b)); - break; - case 'false': - stack.push(false); - break; - case 'floor': - a = stack.pop(); - stack.push(Math.floor(a)); - break; - case 'ge': - b = stack.pop(); - a = stack.pop(); - stack.push(a >= b); - break; - case 'gt': - b = stack.pop(); - a = stack.pop(); - stack.push(a > b); - break; - case 'idiv': - b = stack.pop(); - a = stack.pop(); - stack.push((a / b) | 0); - break; - case 'index': - a = stack.pop(); - stack.index(a); - break; - case 'le': - b = stack.pop(); - a = stack.pop(); - stack.push(a <= b); - break; - case 'ln': - a = stack.pop(); - stack.push(Math.log(a)); - break; - case 'log': - a = stack.pop(); - stack.push(Math.log(a) / Math.LN10); - break; - case 'lt': - b = stack.pop(); - a = stack.pop(); - stack.push(a < b); - break; - case 'mod': - b = stack.pop(); - a = stack.pop(); - stack.push(a % b); - break; - case 'mul': - b = stack.pop(); - a = stack.pop(); - stack.push(a * b); - break; - case 'ne': - b = stack.pop(); - a = stack.pop(); - stack.push(a !== b); - break; - case 'neg': - a = stack.pop(); - stack.push(-a); - break; - case 'not': - a = stack.pop(); - if (isBool(a)) { - stack.push(!a); - } else { - stack.push(~a); - } - break; - case 'or': - b = stack.pop(); - a = stack.pop(); - if (isBool(a) && isBool(b)) { - stack.push(a || b); - } else { - stack.push(a | b); - } - break; - case 'pop': - stack.pop(); - break; - case 'roll': - b = stack.pop(); - a = stack.pop(); - stack.roll(a, b); - break; - case 'round': - a = stack.pop(); - stack.push(Math.round(a)); - break; - case 'sin': - a = stack.pop(); - stack.push(Math.sin(a)); - break; - case 'sqrt': - a = stack.pop(); - stack.push(Math.sqrt(a)); - break; - case 'sub': - b = stack.pop(); - a = stack.pop(); - stack.push(a - b); - break; - case 'true': - stack.push(true); - break; - case 'truncate': - a = stack.pop(); - a = a < 0 ? Math.ceil(a) : Math.floor(a); - stack.push(a); - break; - case 'xor': - b = stack.pop(); - a = stack.pop(); - if (isBool(a) && isBool(b)) { - stack.push(a !== b); - } else { - stack.push(a ^ b); - } - break; - default: - error('Unknown operator ' + operator); - break; - } + if (!length) { + return bytes.subarray(pos, strEnd); } - return stack.stack; - } + var end = pos + length; + if (end > strEnd) { + end = strEnd; + } + this.pos = end; + return bytes.subarray(pos, end); + }, + peekByte: function Stream_peekByte() { + var peekedByte = this.getByte(); + this.pos--; + return peekedByte; + }, + peekBytes: function Stream_peekBytes(length) { + var bytes = this.getBytes(length); + this.pos -= bytes.length; + return bytes; + }, + skip: function Stream_skip(n) { + if (!n) { + n = 1; + } + this.pos += n; + }, + reset: function Stream_reset() { + this.pos = this.start; + }, + moveStart: function Stream_moveStart() { + this.start = this.pos; + }, + makeSubStream: function Stream_makeSubStream(start, length, dict) { + return new Stream(this.bytes.buffer, start, length, dict); + }, + isStream: true }; - return PostScriptEvaluator; + + return Stream; })(); -// Most of the PDFs functions consist of simple operations such as: -// roll, exch, sub, cvr, pop, index, dup, mul, if, gt, add. -// -// We can compile most of such programs, and at the same moment, we can -// optimize some expressions using basic math properties. Keeping track of -// min/max values will allow us to avoid extra Math.min/Math.max calls. -var PostScriptCompiler = (function PostScriptCompilerClosure() { - function AstNode(type) { - this.type = type; - } - AstNode.prototype.visit = function (visitor) { - throw new Error('abstract method'); - }; - - function AstArgument(index, min, max) { - AstNode.call(this, 'args'); - this.index = index; - this.min = min; - this.max = max; - } - AstArgument.prototype = Object.create(AstNode.prototype); - AstArgument.prototype.visit = function (visitor) { - visitor.visitArgument(this); - }; - - function AstLiteral(number) { - AstNode.call(this, 'literal'); - this.number = number; - this.min = number; - this.max = number; - } - AstLiteral.prototype = Object.create(AstNode.prototype); - AstLiteral.prototype.visit = function (visitor) { - visitor.visitLiteral(this); - }; - - function AstBinaryOperation(op, arg1, arg2, min, max) { - AstNode.call(this, 'binary'); - this.op = op; - this.arg1 = arg1; - this.arg2 = arg2; - this.min = min; - this.max = max; - } - AstBinaryOperation.prototype = Object.create(AstNode.prototype); - AstBinaryOperation.prototype.visit = function (visitor) { - visitor.visitBinaryOperation(this); - }; - - function AstMin(arg, max) { - AstNode.call(this, 'max'); - this.arg = arg; - this.min = arg.min; - this.max = max; - } - AstMin.prototype = Object.create(AstNode.prototype); - AstMin.prototype.visit = function (visitor) { - visitor.visitMin(this); - }; - - function AstVariable(index, min, max) { - AstNode.call(this, 'var'); - this.index = index; - this.min = min; - this.max = max; - } - AstVariable.prototype = Object.create(AstNode.prototype); - AstVariable.prototype.visit = function (visitor) { - visitor.visitVariable(this); - }; - - function AstVariableDefinition(variable, arg) { - AstNode.call(this, 'definition'); - this.variable = variable; - this.arg = arg; - } - AstVariableDefinition.prototype = Object.create(AstNode.prototype); - AstVariableDefinition.prototype.visit = function (visitor) { - visitor.visitVariableDefinition(this); - }; - - function ExpressionBuilderVisitor() { - this.parts = []; - } - ExpressionBuilderVisitor.prototype = { - visitArgument: function (arg) { - this.parts.push('Math.max(', arg.min, ', Math.min(', - arg.max, ', src[srcOffset + ', arg.index, ']))'); - }, - visitVariable: function (variable) { - this.parts.push('v', variable.index); - }, - visitLiteral: function (literal) { - this.parts.push(literal.number); - }, - visitBinaryOperation: function (operation) { - this.parts.push('('); - operation.arg1.visit(this); - this.parts.push(' ', operation.op, ' '); - operation.arg2.visit(this); - this.parts.push(')'); - }, - visitVariableDefinition: function (definition) { - this.parts.push('var '); - definition.variable.visit(this); - this.parts.push(' = '); - definition.arg.visit(this); - this.parts.push(';'); - }, - visitMin: function (max) { - this.parts.push('Math.min('); - max.arg.visit(this); - this.parts.push(', ', max.max, ')'); - }, - toString: function () { - return this.parts.join(''); +var StringStream = (function StringStreamClosure() { + function StringStream(str) { + var length = str.length; + var bytes = new Uint8Array(length); + for (var n = 0; n < length; ++n) { + bytes[n] = str.charCodeAt(n); } - }; - - function buildAddOperation(num1, num2) { - if (num2.type === 'literal' && num2.number === 0) { - // optimization: second operand is 0 - return num1; - } - if (num1.type === 'literal' && num1.number === 0) { - // optimization: first operand is 0 - return num2; - } - if (num2.type === 'literal' && num1.type === 'literal') { - // optimization: operands operand are literals - return new AstLiteral(num1.number + num2.number); - } - return new AstBinaryOperation('+', num1, num2, - num1.min + num2.min, num1.max + num2.max); + Stream.call(this, bytes); } - function buildMulOperation(num1, num2) { - if (num2.type === 'literal') { - // optimization: second operands is a literal... - if (num2.number === 0) { - return new AstLiteral(0); // and it's 0 - } else if (num2.number === 1) { - return num1; // and it's 1 - } else if (num1.type === 'literal') { - // ... and first operands is a literal too - return new AstLiteral(num1.number * num2.number); - } - } - if (num1.type === 'literal') { - // optimization: first operands is a literal... - if (num1.number === 0) { - return new AstLiteral(0); // and it's 0 - } else if (num1.number === 1) { - return num2; // and it's 1 - } - } - var min = Math.min(num1.min * num2.min, num1.min * num2.max, - num1.max * num2.min, num1.max * num2.max); - var max = Math.max(num1.min * num2.min, num1.min * num2.max, - num1.max * num2.min, num1.max * num2.max); - return new AstBinaryOperation('*', num1, num2, min, max); - } + StringStream.prototype = Stream.prototype; - function buildSubOperation(num1, num2) { - if (num2.type === 'literal') { - // optimization: second operands is a literal... - if (num2.number === 0) { - return num1; // ... and it's 0 - } else if (num1.type === 'literal') { - // ... and first operands is a literal too - return new AstLiteral(num1.number - num2.number); - } - } - if (num2.type === 'binary' && num2.op === '-' && - num1.type === 'literal' && num1.number === 1 && - num2.arg1.type === 'literal' && num2.arg1.number === 1) { - // optimization for case: 1 - (1 - x) - return num2.arg2; - } - return new AstBinaryOperation('-', num1, num2, - num1.min - num2.max, num1.max - num2.min); - } - - function buildMinOperation(num1, max) { - if (num1.min >= max) { - // optimization: num1 min value is not less than required max - return new AstLiteral(max); // just returning max - } else if (num1.max <= max) { - // optimization: num1 max value is not greater than required max - return num1; // just returning an argument - } - return new AstMin(num1, max); - } - - function PostScriptCompiler() {} - PostScriptCompiler.prototype = { - compile: function PostScriptCompiler_compile(code, domain, range) { - var stack = []; - var i, ii; - var instructions = []; - var inputSize = domain.length >> 1, outputSize = range.length >> 1; - var lastRegister = 0; - var n, j, min, max; - var num1, num2, ast1, ast2, tmpVar, item; - for (i = 0; i < inputSize; i++) { - stack.push(new AstArgument(i, domain[i * 2], domain[i * 2 + 1])); - } - - for (i = 0, ii = code.length; i < ii; i++) { - item = code[i]; - if (typeof item === 'number') { - stack.push(new AstLiteral(item)); - continue; - } - - switch (item) { - case 'add': - if (stack.length < 2) { - return null; - } - num2 = stack.pop(); - num1 = stack.pop(); - stack.push(buildAddOperation(num1, num2)); - break; - case 'cvr': - if (stack.length < 1) { - return null; - } - break; - case 'mul': - if (stack.length < 2) { - return null; - } - num2 = stack.pop(); - num1 = stack.pop(); - stack.push(buildMulOperation(num1, num2)); - break; - case 'sub': - if (stack.length < 2) { - return null; - } - num2 = stack.pop(); - num1 = stack.pop(); - stack.push(buildSubOperation(num1, num2)); - break; - case 'exch': - if (stack.length < 2) { - return null; - } - ast1 = stack.pop(); ast2 = stack.pop(); - stack.push(ast1, ast2); - break; - case 'pop': - if (stack.length < 1) { - return null; - } - stack.pop(); - break; - case 'index': - if (stack.length < 1) { - return null; - } - num1 = stack.pop(); - if (num1.type !== 'literal') { - return null; - } - n = num1.number; - if (n < 0 || (n|0) !== n || stack.length < n) { - return null; - } - ast1 = stack[stack.length - n - 1]; - if (ast1.type === 'literal' || ast1.type === 'var') { - stack.push(ast1); - break; - } - tmpVar = new AstVariable(lastRegister++, ast1.min, ast1.max); - stack[stack.length - n - 1] = tmpVar; - stack.push(tmpVar); - instructions.push(new AstVariableDefinition(tmpVar, ast1)); - break; - case 'dup': - if (stack.length < 1) { - return null; - } - if (typeof code[i + 1] === 'number' && code[i + 2] === 'gt' && - code[i + 3] === i + 7 && code[i + 4] === 'jz' && - code[i + 5] === 'pop' && code[i + 6] === code[i + 1]) { - // special case of the commands sequence for the min operation - num1 = stack.pop(); - stack.push(buildMinOperation(num1, code[i + 1])); - i += 6; - break; - } - ast1 = stack[stack.length - 1]; - if (ast1.type === 'literal' || ast1.type === 'var') { - // we don't have to save into intermediate variable a literal or - // variable. - stack.push(ast1); - break; - } - tmpVar = new AstVariable(lastRegister++, ast1.min, ast1.max); - stack[stack.length - 1] = tmpVar; - stack.push(tmpVar); - instructions.push(new AstVariableDefinition(tmpVar, ast1)); - break; - case 'roll': - if (stack.length < 2) { - return null; - } - num2 = stack.pop(); - num1 = stack.pop(); - if (num2.type !== 'literal' || num1.type !== 'literal') { - // both roll operands must be numbers - return null; - } - j = num2.number; - n = num1.number; - if (n <= 0 || (n|0) !== n || (j|0) !== j || stack.length < n) { - // ... and integers - return null; - } - j = ((j % n) + n) % n; - if (j === 0) { - break; // just skipping -- there are nothing to rotate - } - Array.prototype.push.apply(stack, - stack.splice(stack.length - n, n - j)); - break; - default: - return null; // unsupported operator - } - } - - if (stack.length !== outputSize) { - return null; - } - - var result = []; - instructions.forEach(function (instruction) { - var statementBuilder = new ExpressionBuilderVisitor(); - instruction.visit(statementBuilder); - result.push(statementBuilder.toString()); - }); - stack.forEach(function (expr, i) { - var statementBuilder = new ExpressionBuilderVisitor(); - expr.visit(statementBuilder); - var min = range[i * 2], max = range[i * 2 + 1]; - var out = [statementBuilder.toString()]; - if (min > expr.min) { - out.unshift('Math.max(', min, ', '); - out.push(')'); - } - if (max < expr.max) { - out.unshift('Math.min(', max, ', '); - out.push(')'); - } - out.unshift('dest[destOffset + ', i, '] = '); - out.push(';'); - result.push(out.join('')); - }); - return result.join('\n'); - } - }; - - return PostScriptCompiler; + return StringStream; })(); +// super class for the decoding streams +var DecodeStream = (function DecodeStreamClosure() { + // Lots of DecodeStreams are created whose buffers are never used. For these + // we share a single empty buffer. This is (a) space-efficient and (b) avoids + // having special cases that would be required if we used |null| for an empty + // buffer. + var emptyBuffer = new Uint8Array(0); -var ColorSpace = (function ColorSpaceClosure() { - // Constructor should define this.numComps, this.defaultColor, this.name - function ColorSpace() { - error('should not call ColorSpace constructor'); + function DecodeStream(maybeMinBufferLength) { + this.pos = 0; + this.bufferLength = 0; + this.eof = false; + this.buffer = emptyBuffer; + this.minBufferLength = 512; + if (maybeMinBufferLength) { + // Compute the first power of two that is as big as maybeMinBufferLength. + while (this.minBufferLength < maybeMinBufferLength) { + this.minBufferLength *= 2; + } + } } - ColorSpace.prototype = { - /** - * Converts the color value to the RGB color. The color components are - * located in the src array starting from the srcOffset. Returns the array - * of the rgb components, each value ranging from [0,255]. - */ - getRgb: function ColorSpace_getRgb(src, srcOffset) { - var rgb = new Uint8Array(3); - this.getRgbItem(src, srcOffset, rgb, 0); - return rgb; + DecodeStream.prototype = { + get isEmpty() { + while (!this.eof && this.bufferLength === 0) { + this.readBlock(); + } + return this.bufferLength === 0; }, - /** - * Converts the color value to the RGB color, similar to the getRgb method. - * The result placed into the dest array starting from the destOffset. - */ - getRgbItem: function ColorSpace_getRgbItem(src, srcOffset, - dest, destOffset) { - error('Should not call ColorSpace.getRgbItem'); + ensureBuffer: function DecodeStream_ensureBuffer(requested) { + var buffer = this.buffer; + if (requested <= buffer.byteLength) { + return buffer; + } + var size = this.minBufferLength; + while (size < requested) { + size *= 2; + } + var buffer2 = new Uint8Array(size); + buffer2.set(buffer); + return (this.buffer = buffer2); }, - /** - * Converts the specified number of the color values to the RGB colors. - * The colors are located in the src array starting from the srcOffset. - * The result is placed into the dest array starting from the destOffset. - * The src array items shall be in [0,2^bits) range, the dest array items - * will be in [0,255] range. alpha01 indicates how many alpha components - * there are in the dest array; it will be either 0 (RGB array) or 1 (RGBA - * array). - */ - getRgbBuffer: function ColorSpace_getRgbBuffer(src, srcOffset, count, - dest, destOffset, bits, - alpha01) { - error('Should not call ColorSpace.getRgbBuffer'); - }, - /** - * Determines the number of bytes required to store the result of the - * conversion done by the getRgbBuffer method. As in getRgbBuffer, - * |alpha01| is either 0 (RGB output) or 1 (RGBA output). - */ - getOutputLength: function ColorSpace_getOutputLength(inputLength, - alpha01) { - error('Should not call ColorSpace.getOutputLength'); - }, - /** - * Returns true if source data will be equal the result/output data. - */ - isPassthrough: function ColorSpace_isPassthrough(bits) { - return false; - }, - /** - * Fills in the RGB colors in the destination buffer. alpha01 indicates - * how many alpha components there are in the dest array; it will be either - * 0 (RGB array) or 1 (RGBA array). - */ - fillRgb: function ColorSpace_fillRgb(dest, originalWidth, - originalHeight, width, height, - actualHeight, bpc, comps, alpha01) { - var count = originalWidth * originalHeight; - var rgbBuf = null; - var numComponentColors = 1 << bpc; - var needsResizing = originalHeight !== height || originalWidth !== width; - var i, ii; - - if (this.isPassthrough(bpc)) { - rgbBuf = comps; - } else if (this.numComps === 1 && count > numComponentColors && - this.name !== 'DeviceGray' && this.name !== 'DeviceRGB') { - // Optimization: create a color map when there is just one component and - // we are converting more colors than the size of the color map. We - // don't build the map if the colorspace is gray or rgb since those - // methods are faster than building a map. This mainly offers big speed - // ups for indexed and alternate colorspaces. - // - // TODO it may be worth while to cache the color map. While running - // testing I never hit a cache so I will leave that out for now (perhaps - // we are reparsing colorspaces too much?). - var allColors = bpc <= 8 ? new Uint8Array(numComponentColors) : - new Uint16Array(numComponentColors); - var key; - for (i = 0; i < numComponentColors; i++) { - allColors[i] = i; + getByte: function DecodeStream_getByte() { + var pos = this.pos; + while (this.bufferLength <= pos) { + if (this.eof) { + return -1; } - var colorMap = new Uint8Array(numComponentColors * 3); - this.getRgbBuffer(allColors, 0, numComponentColors, colorMap, 0, bpc, - /* alpha01 = */ 0); + this.readBlock(); + } + return this.buffer[this.pos++]; + }, + getUint16: function DecodeStream_getUint16() { + var b0 = this.getByte(); + var b1 = this.getByte(); + if (b0 === -1 || b1 === -1) { + return -1; + } + return (b0 << 8) + b1; + }, + getInt32: function DecodeStream_getInt32() { + var b0 = this.getByte(); + var b1 = this.getByte(); + var b2 = this.getByte(); + var b3 = this.getByte(); + return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3; + }, + getBytes: function DecodeStream_getBytes(length) { + var end, pos = this.pos; - var destPos, rgbPos; - if (!needsResizing) { - // Fill in the RGB values directly into |dest|. - destPos = 0; - for (i = 0; i < count; ++i) { - key = comps[i] * 3; - dest[destPos++] = colorMap[key]; - dest[destPos++] = colorMap[key + 1]; - dest[destPos++] = colorMap[key + 2]; - destPos += alpha01; - } - } else { - rgbBuf = new Uint8Array(count * 3); - rgbPos = 0; - for (i = 0; i < count; ++i) { - key = comps[i] * 3; - rgbBuf[rgbPos++] = colorMap[key]; - rgbBuf[rgbPos++] = colorMap[key + 1]; - rgbBuf[rgbPos++] = colorMap[key + 2]; - } + if (length) { + this.ensureBuffer(pos + length); + end = pos + length; + + while (!this.eof && this.bufferLength < end) { + this.readBlock(); + } + var bufEnd = this.bufferLength; + if (end > bufEnd) { + end = bufEnd; } } else { - if (!needsResizing) { - // Fill in the RGB values directly into |dest|. - this.getRgbBuffer(comps, 0, width * actualHeight, dest, 0, bpc, - alpha01); - } else { - rgbBuf = new Uint8Array(count * 3); - this.getRgbBuffer(comps, 0, count, rgbBuf, 0, bpc, - /* alpha01 = */ 0); + while (!this.eof) { + this.readBlock(); } + end = this.bufferLength; } - if (rgbBuf) { - if (needsResizing) { - PDFImage.resize(rgbBuf, bpc, 3, originalWidth, originalHeight, width, - height, dest, alpha01); - } else { - rgbPos = 0; - destPos = 0; - for (i = 0, ii = width * actualHeight; i < ii; i++) { - dest[destPos++] = rgbBuf[rgbPos++]; - dest[destPos++] = rgbBuf[rgbPos++]; - dest[destPos++] = rgbBuf[rgbPos++]; - destPos += alpha01; - } - } - } + this.pos = end; + return this.buffer.subarray(pos, end); }, - /** - * True if the colorspace has components in the default range of [0, 1]. - * This should be true for all colorspaces except for lab color spaces - * which are [0,100], [-128, 127], [-128, 127]. - */ - usesZeroToOneRange: true - }; - - ColorSpace.parse = function ColorSpace_parse(cs, xref, res) { - var IR = ColorSpace.parseToIR(cs, xref, res); - if (IR instanceof AlternateCS) { - return IR; + peekByte: function DecodeStream_peekByte() { + var peekedByte = this.getByte(); + this.pos--; + return peekedByte; + }, + peekBytes: function DecodeStream_peekBytes(length) { + var bytes = this.getBytes(length); + this.pos -= bytes.length; + return bytes; + }, + makeSubStream: function DecodeStream_makeSubStream(start, length, dict) { + var end = start + length; + while (this.bufferLength <= end && !this.eof) { + this.readBlock(); + } + return new Stream(this.buffer, start, length, dict); + }, + skip: function DecodeStream_skip(n) { + if (!n) { + n = 1; + } + this.pos += n; + }, + reset: function DecodeStream_reset() { + this.pos = 0; + }, + getBaseStreams: function DecodeStream_getBaseStreams() { + if (this.str && this.str.getBaseStreams) { + return this.str.getBaseStreams(); + } + return []; } - return ColorSpace.fromIR(IR); }; - ColorSpace.fromIR = function ColorSpace_fromIR(IR) { - var name = isArray(IR) ? IR[0] : IR; - var whitePoint, blackPoint, gamma; + return DecodeStream; +})(); - switch (name) { - case 'DeviceGrayCS': - return this.singletons.gray; - case 'DeviceRgbCS': - return this.singletons.rgb; - case 'DeviceCmykCS': - return this.singletons.cmyk; - case 'CalGrayCS': - whitePoint = IR[1].WhitePoint; - blackPoint = IR[1].BlackPoint; - gamma = IR[1].Gamma; - return new CalGrayCS(whitePoint, blackPoint, gamma); - case 'CalRGBCS': - whitePoint = IR[1].WhitePoint; - blackPoint = IR[1].BlackPoint; - gamma = IR[1].Gamma; - var matrix = IR[1].Matrix; - return new CalRGBCS(whitePoint, blackPoint, gamma, matrix); - case 'PatternCS': - var basePatternCS = IR[1]; - if (basePatternCS) { - basePatternCS = ColorSpace.fromIR(basePatternCS); - } - return new PatternCS(basePatternCS); - case 'IndexedCS': - var baseIndexedCS = IR[1]; - var hiVal = IR[2]; - var lookup = IR[3]; - return new IndexedCS(ColorSpace.fromIR(baseIndexedCS), hiVal, lookup); - case 'AlternateCS': - var numComps = IR[1]; - var alt = IR[2]; - var tintFnIR = IR[3]; +var StreamsSequenceStream = (function StreamsSequenceStreamClosure() { + function StreamsSequenceStream(streams) { + this.streams = streams; + DecodeStream.call(this, /* maybeLength = */ null); + } - return new AlternateCS(numComps, ColorSpace.fromIR(alt), - PDFFunction.fromIR(tintFnIR)); - case 'LabCS': - whitePoint = IR[1].WhitePoint; - blackPoint = IR[1].BlackPoint; - var range = IR[1].Range; - return new LabCS(whitePoint, blackPoint, range); - default: - error('Unknown name ' + name); + StreamsSequenceStream.prototype = Object.create(DecodeStream.prototype); + + StreamsSequenceStream.prototype.readBlock = + function streamSequenceStreamReadBlock() { + + var streams = this.streams; + if (streams.length === 0) { + this.eof = true; + return; } - return null; + var stream = streams.shift(); + var chunk = stream.getBytes(); + var bufferLength = this.bufferLength; + var newLength = bufferLength + chunk.length; + var buffer = this.ensureBuffer(newLength); + buffer.set(chunk, bufferLength); + this.bufferLength = newLength; }; - ColorSpace.parseToIR = function ColorSpace_parseToIR(cs, xref, res) { - if (isName(cs)) { - var colorSpaces = res.get('ColorSpace'); - if (isDict(colorSpaces)) { - var refcs = colorSpaces.get(cs.name); - if (refcs) { - cs = refcs; + StreamsSequenceStream.prototype.getBaseStreams = + function StreamsSequenceStream_getBaseStreams() { + + var baseStreams = []; + for (var i = 0, ii = this.streams.length; i < ii; i++) { + var stream = this.streams[i]; + if (stream.getBaseStreams) { + Util.appendToArray(baseStreams, stream.getBaseStreams()); + } + } + return baseStreams; + }; + + return StreamsSequenceStream; +})(); + +var FlateStream = (function FlateStreamClosure() { + var codeLenCodeMap = new Int32Array([ + 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 + ]); + + var lengthDecode = new Int32Array([ + 0x00003, 0x00004, 0x00005, 0x00006, 0x00007, 0x00008, 0x00009, 0x0000a, + 0x1000b, 0x1000d, 0x1000f, 0x10011, 0x20013, 0x20017, 0x2001b, 0x2001f, + 0x30023, 0x3002b, 0x30033, 0x3003b, 0x40043, 0x40053, 0x40063, 0x40073, + 0x50083, 0x500a3, 0x500c3, 0x500e3, 0x00102, 0x00102, 0x00102 + ]); + + var distDecode = new Int32Array([ + 0x00001, 0x00002, 0x00003, 0x00004, 0x10005, 0x10007, 0x20009, 0x2000d, + 0x30011, 0x30019, 0x40021, 0x40031, 0x50041, 0x50061, 0x60081, 0x600c1, + 0x70101, 0x70181, 0x80201, 0x80301, 0x90401, 0x90601, 0xa0801, 0xa0c01, + 0xb1001, 0xb1801, 0xc2001, 0xc3001, 0xd4001, 0xd6001 + ]); + + var fixedLitCodeTab = [new Int32Array([ + 0x70100, 0x80050, 0x80010, 0x80118, 0x70110, 0x80070, 0x80030, 0x900c0, + 0x70108, 0x80060, 0x80020, 0x900a0, 0x80000, 0x80080, 0x80040, 0x900e0, + 0x70104, 0x80058, 0x80018, 0x90090, 0x70114, 0x80078, 0x80038, 0x900d0, + 0x7010c, 0x80068, 0x80028, 0x900b0, 0x80008, 0x80088, 0x80048, 0x900f0, + 0x70102, 0x80054, 0x80014, 0x8011c, 0x70112, 0x80074, 0x80034, 0x900c8, + 0x7010a, 0x80064, 0x80024, 0x900a8, 0x80004, 0x80084, 0x80044, 0x900e8, + 0x70106, 0x8005c, 0x8001c, 0x90098, 0x70116, 0x8007c, 0x8003c, 0x900d8, + 0x7010e, 0x8006c, 0x8002c, 0x900b8, 0x8000c, 0x8008c, 0x8004c, 0x900f8, + 0x70101, 0x80052, 0x80012, 0x8011a, 0x70111, 0x80072, 0x80032, 0x900c4, + 0x70109, 0x80062, 0x80022, 0x900a4, 0x80002, 0x80082, 0x80042, 0x900e4, + 0x70105, 0x8005a, 0x8001a, 0x90094, 0x70115, 0x8007a, 0x8003a, 0x900d4, + 0x7010d, 0x8006a, 0x8002a, 0x900b4, 0x8000a, 0x8008a, 0x8004a, 0x900f4, + 0x70103, 0x80056, 0x80016, 0x8011e, 0x70113, 0x80076, 0x80036, 0x900cc, + 0x7010b, 0x80066, 0x80026, 0x900ac, 0x80006, 0x80086, 0x80046, 0x900ec, + 0x70107, 0x8005e, 0x8001e, 0x9009c, 0x70117, 0x8007e, 0x8003e, 0x900dc, + 0x7010f, 0x8006e, 0x8002e, 0x900bc, 0x8000e, 0x8008e, 0x8004e, 0x900fc, + 0x70100, 0x80051, 0x80011, 0x80119, 0x70110, 0x80071, 0x80031, 0x900c2, + 0x70108, 0x80061, 0x80021, 0x900a2, 0x80001, 0x80081, 0x80041, 0x900e2, + 0x70104, 0x80059, 0x80019, 0x90092, 0x70114, 0x80079, 0x80039, 0x900d2, + 0x7010c, 0x80069, 0x80029, 0x900b2, 0x80009, 0x80089, 0x80049, 0x900f2, + 0x70102, 0x80055, 0x80015, 0x8011d, 0x70112, 0x80075, 0x80035, 0x900ca, + 0x7010a, 0x80065, 0x80025, 0x900aa, 0x80005, 0x80085, 0x80045, 0x900ea, + 0x70106, 0x8005d, 0x8001d, 0x9009a, 0x70116, 0x8007d, 0x8003d, 0x900da, + 0x7010e, 0x8006d, 0x8002d, 0x900ba, 0x8000d, 0x8008d, 0x8004d, 0x900fa, + 0x70101, 0x80053, 0x80013, 0x8011b, 0x70111, 0x80073, 0x80033, 0x900c6, + 0x70109, 0x80063, 0x80023, 0x900a6, 0x80003, 0x80083, 0x80043, 0x900e6, + 0x70105, 0x8005b, 0x8001b, 0x90096, 0x70115, 0x8007b, 0x8003b, 0x900d6, + 0x7010d, 0x8006b, 0x8002b, 0x900b6, 0x8000b, 0x8008b, 0x8004b, 0x900f6, + 0x70103, 0x80057, 0x80017, 0x8011f, 0x70113, 0x80077, 0x80037, 0x900ce, + 0x7010b, 0x80067, 0x80027, 0x900ae, 0x80007, 0x80087, 0x80047, 0x900ee, + 0x70107, 0x8005f, 0x8001f, 0x9009e, 0x70117, 0x8007f, 0x8003f, 0x900de, + 0x7010f, 0x8006f, 0x8002f, 0x900be, 0x8000f, 0x8008f, 0x8004f, 0x900fe, + 0x70100, 0x80050, 0x80010, 0x80118, 0x70110, 0x80070, 0x80030, 0x900c1, + 0x70108, 0x80060, 0x80020, 0x900a1, 0x80000, 0x80080, 0x80040, 0x900e1, + 0x70104, 0x80058, 0x80018, 0x90091, 0x70114, 0x80078, 0x80038, 0x900d1, + 0x7010c, 0x80068, 0x80028, 0x900b1, 0x80008, 0x80088, 0x80048, 0x900f1, + 0x70102, 0x80054, 0x80014, 0x8011c, 0x70112, 0x80074, 0x80034, 0x900c9, + 0x7010a, 0x80064, 0x80024, 0x900a9, 0x80004, 0x80084, 0x80044, 0x900e9, + 0x70106, 0x8005c, 0x8001c, 0x90099, 0x70116, 0x8007c, 0x8003c, 0x900d9, + 0x7010e, 0x8006c, 0x8002c, 0x900b9, 0x8000c, 0x8008c, 0x8004c, 0x900f9, + 0x70101, 0x80052, 0x80012, 0x8011a, 0x70111, 0x80072, 0x80032, 0x900c5, + 0x70109, 0x80062, 0x80022, 0x900a5, 0x80002, 0x80082, 0x80042, 0x900e5, + 0x70105, 0x8005a, 0x8001a, 0x90095, 0x70115, 0x8007a, 0x8003a, 0x900d5, + 0x7010d, 0x8006a, 0x8002a, 0x900b5, 0x8000a, 0x8008a, 0x8004a, 0x900f5, + 0x70103, 0x80056, 0x80016, 0x8011e, 0x70113, 0x80076, 0x80036, 0x900cd, + 0x7010b, 0x80066, 0x80026, 0x900ad, 0x80006, 0x80086, 0x80046, 0x900ed, + 0x70107, 0x8005e, 0x8001e, 0x9009d, 0x70117, 0x8007e, 0x8003e, 0x900dd, + 0x7010f, 0x8006e, 0x8002e, 0x900bd, 0x8000e, 0x8008e, 0x8004e, 0x900fd, + 0x70100, 0x80051, 0x80011, 0x80119, 0x70110, 0x80071, 0x80031, 0x900c3, + 0x70108, 0x80061, 0x80021, 0x900a3, 0x80001, 0x80081, 0x80041, 0x900e3, + 0x70104, 0x80059, 0x80019, 0x90093, 0x70114, 0x80079, 0x80039, 0x900d3, + 0x7010c, 0x80069, 0x80029, 0x900b3, 0x80009, 0x80089, 0x80049, 0x900f3, + 0x70102, 0x80055, 0x80015, 0x8011d, 0x70112, 0x80075, 0x80035, 0x900cb, + 0x7010a, 0x80065, 0x80025, 0x900ab, 0x80005, 0x80085, 0x80045, 0x900eb, + 0x70106, 0x8005d, 0x8001d, 0x9009b, 0x70116, 0x8007d, 0x8003d, 0x900db, + 0x7010e, 0x8006d, 0x8002d, 0x900bb, 0x8000d, 0x8008d, 0x8004d, 0x900fb, + 0x70101, 0x80053, 0x80013, 0x8011b, 0x70111, 0x80073, 0x80033, 0x900c7, + 0x70109, 0x80063, 0x80023, 0x900a7, 0x80003, 0x80083, 0x80043, 0x900e7, + 0x70105, 0x8005b, 0x8001b, 0x90097, 0x70115, 0x8007b, 0x8003b, 0x900d7, + 0x7010d, 0x8006b, 0x8002b, 0x900b7, 0x8000b, 0x8008b, 0x8004b, 0x900f7, + 0x70103, 0x80057, 0x80017, 0x8011f, 0x70113, 0x80077, 0x80037, 0x900cf, + 0x7010b, 0x80067, 0x80027, 0x900af, 0x80007, 0x80087, 0x80047, 0x900ef, + 0x70107, 0x8005f, 0x8001f, 0x9009f, 0x70117, 0x8007f, 0x8003f, 0x900df, + 0x7010f, 0x8006f, 0x8002f, 0x900bf, 0x8000f, 0x8008f, 0x8004f, 0x900ff + ]), 9]; + + var fixedDistCodeTab = [new Int32Array([ + 0x50000, 0x50010, 0x50008, 0x50018, 0x50004, 0x50014, 0x5000c, 0x5001c, + 0x50002, 0x50012, 0x5000a, 0x5001a, 0x50006, 0x50016, 0x5000e, 0x00000, + 0x50001, 0x50011, 0x50009, 0x50019, 0x50005, 0x50015, 0x5000d, 0x5001d, + 0x50003, 0x50013, 0x5000b, 0x5001b, 0x50007, 0x50017, 0x5000f, 0x00000 + ]), 5]; + + function FlateStream(str, maybeLength) { + this.str = str; + this.dict = str.dict; + + var cmf = str.getByte(); + var flg = str.getByte(); + if (cmf === -1 || flg === -1) { + error('Invalid header in flate stream: ' + cmf + ', ' + flg); + } + if ((cmf & 0x0f) !== 0x08) { + error('Unknown compression method in flate stream: ' + cmf + ', ' + flg); + } + if ((((cmf << 8) + flg) % 31) !== 0) { + error('Bad FCHECK in flate stream: ' + cmf + ', ' + flg); + } + if (flg & 0x20) { + error('FDICT bit set in flate stream: ' + cmf + ', ' + flg); + } + + this.codeSize = 0; + this.codeBuf = 0; + + DecodeStream.call(this, maybeLength); + } + + FlateStream.prototype = Object.create(DecodeStream.prototype); + + FlateStream.prototype.getBits = function FlateStream_getBits(bits) { + var str = this.str; + var codeSize = this.codeSize; + var codeBuf = this.codeBuf; + + var b; + while (codeSize < bits) { + if ((b = str.getByte()) === -1) { + error('Bad encoding in flate stream'); + } + codeBuf |= b << codeSize; + codeSize += 8; + } + b = codeBuf & ((1 << bits) - 1); + this.codeBuf = codeBuf >> bits; + this.codeSize = codeSize -= bits; + + return b; + }; + + FlateStream.prototype.getCode = function FlateStream_getCode(table) { + var str = this.str; + var codes = table[0]; + var maxLen = table[1]; + var codeSize = this.codeSize; + var codeBuf = this.codeBuf; + + var b; + while (codeSize < maxLen) { + if ((b = str.getByte()) === -1) { + // premature end of stream. code might however still be valid. + // codeSize < codeLen check below guards against incomplete codeVal. + break; + } + codeBuf |= (b << codeSize); + codeSize += 8; + } + var code = codes[codeBuf & ((1 << maxLen) - 1)]; + var codeLen = code >> 16; + var codeVal = code & 0xffff; + if (codeLen < 1 || codeSize < codeLen) { + error('Bad encoding in flate stream'); + } + this.codeBuf = (codeBuf >> codeLen); + this.codeSize = (codeSize - codeLen); + return codeVal; + }; + + FlateStream.prototype.generateHuffmanTable = + function flateStreamGenerateHuffmanTable(lengths) { + var n = lengths.length; + + // find max code length + var maxLen = 0; + var i; + for (i = 0; i < n; ++i) { + if (lengths[i] > maxLen) { + maxLen = lengths[i]; + } + } + + // build the table + var size = 1 << maxLen; + var codes = new Int32Array(size); + for (var len = 1, code = 0, skip = 2; + len <= maxLen; + ++len, code <<= 1, skip <<= 1) { + for (var val = 0; val < n; ++val) { + if (lengths[val] === len) { + // bit-reverse the code + var code2 = 0; + var t = code; + for (i = 0; i < len; ++i) { + code2 = (code2 << 1) | (t & 1); + t >>= 1; + } + + // fill the table entries + for (i = code2; i < size; i += skip) { + codes[i] = (len << 16) | val; + } + ++code; } } } - cs = xref.fetchIfRef(cs); - var mode; + return [codes, maxLen]; + }; - if (isName(cs)) { - mode = cs.name; - this.mode = mode; + FlateStream.prototype.readBlock = function FlateStream_readBlock() { + var buffer, len; + var str = this.str; + // read block header + var hdr = this.getBits(3); + if (hdr & 1) { + this.eof = true; + } + hdr >>= 1; - switch (mode) { - case 'DeviceGray': - case 'G': - return 'DeviceGrayCS'; - case 'DeviceRGB': - case 'RGB': - return 'DeviceRgbCS'; - case 'DeviceCMYK': - case 'CMYK': - return 'DeviceCmykCS'; - case 'Pattern': - return ['PatternCS', null]; - default: - error('unrecognized colorspace ' + mode); + if (hdr === 0) { // uncompressed block + var b; + + if ((b = str.getByte()) === -1) { + error('Bad block header in flate stream'); + } + var blockLen = b; + if ((b = str.getByte()) === -1) { + error('Bad block header in flate stream'); + } + blockLen |= (b << 8); + if ((b = str.getByte()) === -1) { + error('Bad block header in flate stream'); + } + var check = b; + if ((b = str.getByte()) === -1) { + error('Bad block header in flate stream'); + } + check |= (b << 8); + if (check !== (~blockLen & 0xffff) && + (blockLen !== 0 || check !== 0)) { + // Ignoring error for bad "empty" block (see issue 1277) + error('Bad uncompressed block length in flate stream'); } - } else if (isArray(cs)) { - mode = xref.fetchIfRef(cs[0]).name; - this.mode = mode; - var numComps, params, alt; - switch (mode) { - case 'DeviceGray': - case 'G': - return 'DeviceGrayCS'; - case 'DeviceRGB': - case 'RGB': - return 'DeviceRgbCS'; - case 'DeviceCMYK': - case 'CMYK': - return 'DeviceCmykCS'; - case 'CalGray': - params = xref.fetchIfRef(cs[1]).getAll(); - return ['CalGrayCS', params]; - case 'CalRGB': - params = xref.fetchIfRef(cs[1]).getAll(); - return ['CalRGBCS', params]; - case 'ICCBased': - var stream = xref.fetchIfRef(cs[1]); - var dict = stream.dict; - numComps = dict.get('N'); - alt = dict.get('Alternate'); - if (alt) { - var altIR = ColorSpace.parseToIR(alt, xref, res); - // Parse the /Alternate CS to ensure that the number of components - // are correct, and also (indirectly) that it is not a PatternCS. - var altCS = ColorSpace.fromIR(altIR); - if (altCS.numComps === numComps) { - return altIR; - } - warn('ICCBased color space: Ignoring incorrect /Alternate entry.'); + this.codeBuf = 0; + this.codeSize = 0; + + var bufferLength = this.bufferLength; + buffer = this.ensureBuffer(bufferLength + blockLen); + var end = bufferLength + blockLen; + this.bufferLength = end; + if (blockLen === 0) { + if (str.peekByte() === -1) { + this.eof = true; + } + } else { + for (var n = bufferLength; n < end; ++n) { + if ((b = str.getByte()) === -1) { + this.eof = true; + break; } - if (numComps === 1) { - return 'DeviceGrayCS'; - } else if (numComps === 3) { - return 'DeviceRgbCS'; - } else if (numComps === 4) { - return 'DeviceCmykCS'; - } - break; - case 'Pattern': - var basePatternCS = cs[1] || null; - if (basePatternCS) { - basePatternCS = ColorSpace.parseToIR(basePatternCS, xref, res); - } - return ['PatternCS', basePatternCS]; - case 'Indexed': - case 'I': - var baseIndexedCS = ColorSpace.parseToIR(cs[1], xref, res); - var hiVal = xref.fetchIfRef(cs[2]) + 1; - var lookup = xref.fetchIfRef(cs[3]); - if (isStream(lookup)) { - lookup = lookup.getBytes(); - } - return ['IndexedCS', baseIndexedCS, hiVal, lookup]; - case 'Separation': - case 'DeviceN': - var name = xref.fetchIfRef(cs[1]); - numComps = 1; - if (isName(name)) { - numComps = 1; - } else if (isArray(name)) { - numComps = name.length; - } - alt = ColorSpace.parseToIR(cs[2], xref, res); - var tintFnIR = PDFFunction.getIR(xref, xref.fetchIfRef(cs[3])); - return ['AlternateCS', numComps, alt, tintFnIR]; - case 'Lab': - params = xref.fetchIfRef(cs[1]).getAll(); - return ['LabCS', params]; - default: - error('unimplemented color space object "' + mode + '"'); + buffer[n] = b; + } + } + return; + } + + var litCodeTable; + var distCodeTable; + if (hdr === 1) { // compressed block, fixed codes + litCodeTable = fixedLitCodeTab; + distCodeTable = fixedDistCodeTab; + } else if (hdr === 2) { // compressed block, dynamic codes + var numLitCodes = this.getBits(5) + 257; + var numDistCodes = this.getBits(5) + 1; + var numCodeLenCodes = this.getBits(4) + 4; + + // build the code lengths code table + var codeLenCodeLengths = new Uint8Array(codeLenCodeMap.length); + + var i; + for (i = 0; i < numCodeLenCodes; ++i) { + codeLenCodeLengths[codeLenCodeMap[i]] = this.getBits(3); + } + var codeLenCodeTab = this.generateHuffmanTable(codeLenCodeLengths); + + // build the literal and distance code tables + len = 0; + i = 0; + var codes = numLitCodes + numDistCodes; + var codeLengths = new Uint8Array(codes); + var bitsLength, bitsOffset, what; + while (i < codes) { + var code = this.getCode(codeLenCodeTab); + if (code === 16) { + bitsLength = 2; bitsOffset = 3; what = len; + } else if (code === 17) { + bitsLength = 3; bitsOffset = 3; what = (len = 0); + } else if (code === 18) { + bitsLength = 7; bitsOffset = 11; what = (len = 0); + } else { + codeLengths[i++] = len = code; + continue; + } + + var repeatLength = this.getBits(bitsLength) + bitsOffset; + while (repeatLength-- > 0) { + codeLengths[i++] = what; + } + } + + litCodeTable = + this.generateHuffmanTable(codeLengths.subarray(0, numLitCodes)); + distCodeTable = + this.generateHuffmanTable(codeLengths.subarray(numLitCodes, codes)); + } else { + error('Unknown block type in flate stream'); + } + + buffer = this.buffer; + var limit = buffer ? buffer.length : 0; + var pos = this.bufferLength; + while (true) { + var code1 = this.getCode(litCodeTable); + if (code1 < 256) { + if (pos + 1 >= limit) { + buffer = this.ensureBuffer(pos + 1); + limit = buffer.length; + } + buffer[pos++] = code1; + continue; + } + if (code1 === 256) { + this.bufferLength = pos; + return; + } + code1 -= 257; + code1 = lengthDecode[code1]; + var code2 = code1 >> 16; + if (code2 > 0) { + code2 = this.getBits(code2); + } + len = (code1 & 0xffff) + code2; + code1 = this.getCode(distCodeTable); + code1 = distDecode[code1]; + code2 = code1 >> 16; + if (code2 > 0) { + code2 = this.getBits(code2); + } + var dist = (code1 & 0xffff) + code2; + if (pos + len >= limit) { + buffer = this.ensureBuffer(pos + len); + limit = buffer.length; + } + for (var k = 0; k < len; ++k, ++pos) { + buffer[pos] = buffer[pos - dist]; + } + } + }; + + return FlateStream; +})(); + +var PredictorStream = (function PredictorStreamClosure() { + function PredictorStream(str, maybeLength, params) { + var predictor = this.predictor = params.get('Predictor') || 1; + + if (predictor <= 1) { + return str; // no prediction + } + if (predictor !== 2 && (predictor < 10 || predictor > 15)) { + error('Unsupported predictor: ' + predictor); + } + + if (predictor === 2) { + this.readBlock = this.readBlockTiff; + } else { + this.readBlock = this.readBlockPng; + } + + this.str = str; + this.dict = str.dict; + + var colors = this.colors = params.get('Colors') || 1; + var bits = this.bits = params.get('BitsPerComponent') || 8; + var columns = this.columns = params.get('Columns') || 1; + + this.pixBytes = (colors * bits + 7) >> 3; + this.rowBytes = (columns * colors * bits + 7) >> 3; + + DecodeStream.call(this, maybeLength); + return this; + } + + PredictorStream.prototype = Object.create(DecodeStream.prototype); + + PredictorStream.prototype.readBlockTiff = + function predictorStreamReadBlockTiff() { + var rowBytes = this.rowBytes; + + var bufferLength = this.bufferLength; + var buffer = this.ensureBuffer(bufferLength + rowBytes); + + var bits = this.bits; + var colors = this.colors; + + var rawBytes = this.str.getBytes(rowBytes); + this.eof = !rawBytes.length; + if (this.eof) { + return; + } + + var inbuf = 0, outbuf = 0; + var inbits = 0, outbits = 0; + var pos = bufferLength; + var i; + + if (bits === 1) { + for (i = 0; i < rowBytes; ++i) { + var c = rawBytes[i]; + inbuf = (inbuf << 8) | c; + // bitwise addition is exclusive or + // first shift inbuf and then add + buffer[pos++] = (c ^ (inbuf >> colors)) & 0xFF; + // truncate inbuf (assumes colors < 16) + inbuf &= 0xFFFF; + } + } else if (bits === 8) { + for (i = 0; i < colors; ++i) { + buffer[pos++] = rawBytes[i]; + } + for (; i < rowBytes; ++i) { + buffer[pos] = buffer[pos - colors] + rawBytes[i]; + pos++; } } else { - error('unrecognized color space object: "' + cs + '"'); - } - return null; - }; - /** - * Checks if a decode map matches the default decode map for a color space. - * This handles the general decode maps where there are two values per - * component. e.g. [0, 1, 0, 1, 0, 1] for a RGB color. - * This does not handle Lab, Indexed, or Pattern decode maps since they are - * slightly different. - * @param {Array} decode Decode map (usually from an image). - * @param {Number} n Number of components the color space has. - */ - ColorSpace.isDefaultDecode = function ColorSpace_isDefaultDecode(decode, n) { - if (!isArray(decode)) { - return true; - } - - if (n * 2 !== decode.length) { - warn('The decode map is not the correct length'); - return true; - } - for (var i = 0, ii = decode.length; i < ii; i += 2) { - if (decode[i] !== 0 || decode[i + 1] !== 1) { - return false; + var compArray = new Uint8Array(colors + 1); + var bitMask = (1 << bits) - 1; + var j = 0, k = bufferLength; + var columns = this.columns; + for (i = 0; i < columns; ++i) { + for (var kk = 0; kk < colors; ++kk) { + if (inbits < bits) { + inbuf = (inbuf << 8) | (rawBytes[j++] & 0xFF); + inbits += 8; + } + compArray[kk] = (compArray[kk] + + (inbuf >> (inbits - bits))) & bitMask; + inbits -= bits; + outbuf = (outbuf << bits) | compArray[kk]; + outbits += bits; + if (outbits >= 8) { + buffer[k++] = (outbuf >> (outbits - 8)) & 0xFF; + outbits -= 8; + } + } + } + if (outbits > 0) { + buffer[k++] = (outbuf << (8 - outbits)) + + (inbuf & ((1 << (8 - outbits)) - 1)); } } - return true; + this.bufferLength += rowBytes; }; - ColorSpace.singletons = { - get gray() { - return shadow(this, 'gray', new DeviceGrayCS()); - }, - get rgb() { - return shadow(this, 'rgb', new DeviceRgbCS()); - }, - get cmyk() { - return shadow(this, 'cmyk', new DeviceCmykCS()); + PredictorStream.prototype.readBlockPng = + function predictorStreamReadBlockPng() { + + var rowBytes = this.rowBytes; + var pixBytes = this.pixBytes; + + var predictor = this.str.getByte(); + var rawBytes = this.str.getBytes(rowBytes); + this.eof = !rawBytes.length; + if (this.eof) { + return; } + + var bufferLength = this.bufferLength; + var buffer = this.ensureBuffer(bufferLength + rowBytes); + + var prevRow = buffer.subarray(bufferLength - rowBytes, bufferLength); + if (prevRow.length === 0) { + prevRow = new Uint8Array(rowBytes); + } + + var i, j = bufferLength, up, c; + switch (predictor) { + case 0: + for (i = 0; i < rowBytes; ++i) { + buffer[j++] = rawBytes[i]; + } + break; + case 1: + for (i = 0; i < pixBytes; ++i) { + buffer[j++] = rawBytes[i]; + } + for (; i < rowBytes; ++i) { + buffer[j] = (buffer[j - pixBytes] + rawBytes[i]) & 0xFF; + j++; + } + break; + case 2: + for (i = 0; i < rowBytes; ++i) { + buffer[j++] = (prevRow[i] + rawBytes[i]) & 0xFF; + } + break; + case 3: + for (i = 0; i < pixBytes; ++i) { + buffer[j++] = (prevRow[i] >> 1) + rawBytes[i]; + } + for (; i < rowBytes; ++i) { + buffer[j] = (((prevRow[i] + buffer[j - pixBytes]) >> 1) + + rawBytes[i]) & 0xFF; + j++; + } + break; + case 4: + // we need to save the up left pixels values. the simplest way + // is to create a new buffer + for (i = 0; i < pixBytes; ++i) { + up = prevRow[i]; + c = rawBytes[i]; + buffer[j++] = up + c; + } + for (; i < rowBytes; ++i) { + up = prevRow[i]; + var upLeft = prevRow[i - pixBytes]; + var left = buffer[j - pixBytes]; + var p = left + up - upLeft; + + var pa = p - left; + if (pa < 0) { + pa = -pa; + } + var pb = p - up; + if (pb < 0) { + pb = -pb; + } + var pc = p - upLeft; + if (pc < 0) { + pc = -pc; + } + + c = rawBytes[i]; + if (pa <= pb && pa <= pc) { + buffer[j++] = left + c; + } else if (pb <= pc) { + buffer[j++] = up + c; + } else { + buffer[j++] = upLeft + c; + } + } + break; + default: + error('Unsupported predictor: ' + predictor); + } + this.bufferLength += rowBytes; }; - return ColorSpace; + return PredictorStream; })(); /** - * Alternate color space handles both Separation and DeviceN color spaces. A - * Separation color space is actually just a DeviceN with one color component. - * Both color spaces use a tinting function to convert colors to a base color - * space. + * Depending on the type of JPEG a JpegStream is handled in different ways. For + * JPEG's that are supported natively such as DeviceGray and DeviceRGB the image + * data is stored and then loaded by the browser. For unsupported JPEG's we use + * a library to decode these images and the stream behaves like all the other + * DecodeStreams. */ -var AlternateCS = (function AlternateCSClosure() { - function AlternateCS(numComps, base, tintFn) { - this.name = 'Alternate'; - this.numComps = numComps; - this.defaultColor = new Float32Array(numComps); - for (var i = 0; i < numComps; ++i) { - this.defaultColor[i] = 1; +var JpegStream = (function JpegStreamClosure() { + function JpegStream(stream, maybeLength, dict, xref) { + // Some images may contain 'junk' before the SOI (start-of-image) marker. + // Note: this seems to mainly affect inline images. + var ch; + while ((ch = stream.getByte()) !== -1) { + if (ch === 0xFF) { // Find the first byte of the SOI marker (0xFFD8). + stream.skip(-1); // Reset the stream position to the SOI. + break; + } } - this.base = base; - this.tintFn = tintFn; - this.tmpBuf = new Float32Array(base.numComps); + this.stream = stream; + this.maybeLength = maybeLength; + this.dict = dict; + + DecodeStream.call(this, maybeLength); } - AlternateCS.prototype = { - getRgb: ColorSpace.prototype.getRgb, - getRgbItem: function AlternateCS_getRgbItem(src, srcOffset, - dest, destOffset) { - var tmpBuf = this.tmpBuf; - this.tintFn(src, srcOffset, tmpBuf, 0); - this.base.getRgbItem(tmpBuf, 0, dest, destOffset); - }, - getRgbBuffer: function AlternateCS_getRgbBuffer(src, srcOffset, count, - dest, destOffset, bits, - alpha01) { - var tintFn = this.tintFn; - var base = this.base; - var scale = 1 / ((1 << bits) - 1); - var baseNumComps = base.numComps; - var usesZeroToOneRange = base.usesZeroToOneRange; - var isPassthrough = (base.isPassthrough(8) || !usesZeroToOneRange) && - alpha01 === 0; - var pos = isPassthrough ? destOffset : 0; - var baseBuf = isPassthrough ? dest : new Uint8Array(baseNumComps * count); - var numComps = this.numComps; + JpegStream.prototype = Object.create(DecodeStream.prototype); - var scaled = new Float32Array(numComps); - var tinted = new Float32Array(baseNumComps); - var i, j; - if (usesZeroToOneRange) { - for (i = 0; i < count; i++) { - for (j = 0; j < numComps; j++) { - scaled[j] = src[srcOffset++] * scale; + Object.defineProperty(JpegStream.prototype, 'bytes', { + get: function JpegStream_bytes() { + // If this.maybeLength is null, we'll get the entire stream. + return shadow(this, 'bytes', this.stream.getBytes(this.maybeLength)); + }, + configurable: true + }); + + JpegStream.prototype.ensureBuffer = function JpegStream_ensureBuffer(req) { + if (this.bufferLength) { + return; + } + try { + var jpegImage = new JpegImage(); + + // checking if values needs to be transformed before conversion + if (this.forceRGB && this.dict && isArray(this.dict.get('Decode'))) { + var decodeArr = this.dict.get('Decode'); + var bitsPerComponent = this.dict.get('BitsPerComponent') || 8; + var decodeArrLength = decodeArr.length; + var transform = new Int32Array(decodeArrLength); + var transformNeeded = false; + var maxValue = (1 << bitsPerComponent) - 1; + for (var i = 0; i < decodeArrLength; i += 2) { + transform[i] = ((decodeArr[i + 1] - decodeArr[i]) * 256) | 0; + transform[i + 1] = (decodeArr[i] * maxValue) | 0; + if (transform[i] !== 256 || transform[i + 1] !== 0) { + transformNeeded = true; } - tintFn(scaled, 0, tinted, 0); - for (j = 0; j < baseNumComps; j++) { - baseBuf[pos++] = tinted[j] * 255; + } + if (transformNeeded) { + jpegImage.decodeTransform = transform; + } + } + + jpegImage.parse(this.bytes); + var data = jpegImage.getData(this.drawWidth, this.drawHeight, + this.forceRGB); + this.buffer = data; + this.bufferLength = data.length; + this.eof = true; + } catch (e) { + error('JPEG error: ' + e); + } + }; + + JpegStream.prototype.getBytes = function JpegStream_getBytes(length) { + this.ensureBuffer(); + return this.buffer; + }; + + JpegStream.prototype.getIR = function JpegStream_getIR() { + return PDFJS.createObjectURL(this.bytes, 'image/jpeg'); + }; + /** + * Checks if the image can be decoded and displayed by the browser without any + * further processing such as color space conversions. + */ + JpegStream.prototype.isNativelySupported = + function JpegStream_isNativelySupported(xref, res) { + var cs = ColorSpace.parse(this.dict.get('ColorSpace', 'CS'), xref, res); + return (cs.name === 'DeviceGray' || cs.name === 'DeviceRGB') && + cs.isDefaultDecode(this.dict.get('Decode', 'D')); + }; + /** + * Checks if the image can be decoded by the browser. + */ + JpegStream.prototype.isNativelyDecodable = + function JpegStream_isNativelyDecodable(xref, res) { + var cs = ColorSpace.parse(this.dict.get('ColorSpace', 'CS'), xref, res); + return (cs.numComps === 1 || cs.numComps === 3) && + cs.isDefaultDecode(this.dict.get('Decode', 'D')); + }; + + return JpegStream; +})(); + +/** + * For JPEG 2000's we use a library to decode these images and + * the stream behaves like all the other DecodeStreams. + */ +var JpxStream = (function JpxStreamClosure() { + function JpxStream(stream, maybeLength, dict) { + this.stream = stream; + this.maybeLength = maybeLength; + this.dict = dict; + + DecodeStream.call(this, maybeLength); + } + + JpxStream.prototype = Object.create(DecodeStream.prototype); + + Object.defineProperty(JpxStream.prototype, 'bytes', { + get: function JpxStream_bytes() { + // If this.maybeLength is null, we'll get the entire stream. + return shadow(this, 'bytes', this.stream.getBytes(this.maybeLength)); + }, + configurable: true + }); + + JpxStream.prototype.ensureBuffer = function JpxStream_ensureBuffer(req) { + if (this.bufferLength) { + return; + } + + var jpxImage = new JpxImage(); + jpxImage.parse(this.bytes); + + var width = jpxImage.width; + var height = jpxImage.height; + var componentsCount = jpxImage.componentsCount; + var tileCount = jpxImage.tiles.length; + if (tileCount === 1) { + this.buffer = jpxImage.tiles[0].items; + } else { + var data = new Uint8Array(width * height * componentsCount); + + for (var k = 0; k < tileCount; k++) { + var tileComponents = jpxImage.tiles[k]; + var tileWidth = tileComponents.width; + var tileHeight = tileComponents.height; + var tileLeft = tileComponents.left; + var tileTop = tileComponents.top; + + var src = tileComponents.items; + var srcPosition = 0; + var dataPosition = (width * tileTop + tileLeft) * componentsCount; + var imgRowSize = width * componentsCount; + var tileRowSize = tileWidth * componentsCount; + + for (var j = 0; j < tileHeight; j++) { + var rowBytes = src.subarray(srcPosition, srcPosition + tileRowSize); + data.set(rowBytes, dataPosition); + srcPosition += tileRowSize; + dataPosition += imgRowSize; + } + } + this.buffer = data; + } + this.bufferLength = this.buffer.length; + this.eof = true; + }; + + return JpxStream; +})(); + +/** + * For JBIG2's we use a library to decode these images and + * the stream behaves like all the other DecodeStreams. + */ +var Jbig2Stream = (function Jbig2StreamClosure() { + function Jbig2Stream(stream, maybeLength, dict) { + this.stream = stream; + this.maybeLength = maybeLength; + this.dict = dict; + + DecodeStream.call(this, maybeLength); + } + + Jbig2Stream.prototype = Object.create(DecodeStream.prototype); + + Object.defineProperty(Jbig2Stream.prototype, 'bytes', { + get: function Jbig2Stream_bytes() { + // If this.maybeLength is null, we'll get the entire stream. + return shadow(this, 'bytes', this.stream.getBytes(this.maybeLength)); + }, + configurable: true + }); + + Jbig2Stream.prototype.ensureBuffer = function Jbig2Stream_ensureBuffer(req) { + if (this.bufferLength) { + return; + } + + var jbig2Image = new Jbig2Image(); + + var chunks = [], xref = this.dict.xref; + var decodeParams = xref.fetchIfRef(this.dict.get('DecodeParms')); + + // According to the PDF specification, DecodeParms can be either + // a dictionary, or an array whose elements are dictionaries. + if (isArray(decodeParams)) { + if (decodeParams.length > 1) { + warn('JBIG2 - \'DecodeParms\' array with multiple elements ' + + 'not supported.'); + } + decodeParams = xref.fetchIfRef(decodeParams[0]); + } + if (decodeParams && decodeParams.has('JBIG2Globals')) { + var globalsStream = decodeParams.get('JBIG2Globals'); + var globals = globalsStream.getBytes(); + chunks.push({data: globals, start: 0, end: globals.length}); + } + chunks.push({data: this.bytes, start: 0, end: this.bytes.length}); + var data = jbig2Image.parseChunks(chunks); + var dataLength = data.length; + + // JBIG2 had black as 1 and white as 0, inverting the colors + for (var i = 0; i < dataLength; i++) { + data[i] ^= 0xFF; + } + + this.buffer = data; + this.bufferLength = dataLength; + this.eof = true; + }; + + return Jbig2Stream; +})(); + +var DecryptStream = (function DecryptStreamClosure() { + function DecryptStream(str, maybeLength, decrypt) { + this.str = str; + this.dict = str.dict; + this.decrypt = decrypt; + this.nextChunk = null; + this.initialized = false; + + DecodeStream.call(this, maybeLength); + } + + var chunkSize = 512; + + DecryptStream.prototype = Object.create(DecodeStream.prototype); + + DecryptStream.prototype.readBlock = function DecryptStream_readBlock() { + var chunk; + if (this.initialized) { + chunk = this.nextChunk; + } else { + chunk = this.str.getBytes(chunkSize); + this.initialized = true; + } + if (!chunk || chunk.length === 0) { + this.eof = true; + return; + } + this.nextChunk = this.str.getBytes(chunkSize); + var hasMoreData = this.nextChunk && this.nextChunk.length > 0; + + var decrypt = this.decrypt; + chunk = decrypt(chunk, !hasMoreData); + + var bufferLength = this.bufferLength; + var i, n = chunk.length; + var buffer = this.ensureBuffer(bufferLength + n); + for (i = 0; i < n; i++) { + buffer[bufferLength++] = chunk[i]; + } + this.bufferLength = bufferLength; + }; + + return DecryptStream; +})(); + +var Ascii85Stream = (function Ascii85StreamClosure() { + function Ascii85Stream(str, maybeLength) { + this.str = str; + this.dict = str.dict; + this.input = new Uint8Array(5); + + // Most streams increase in size when decoded, but Ascii85 streams + // typically shrink by ~20%. + if (maybeLength) { + maybeLength = 0.8 * maybeLength; + } + DecodeStream.call(this, maybeLength); + } + + Ascii85Stream.prototype = Object.create(DecodeStream.prototype); + + Ascii85Stream.prototype.readBlock = function Ascii85Stream_readBlock() { + var TILDA_CHAR = 0x7E; // '~' + var Z_LOWER_CHAR = 0x7A; // 'z' + var EOF = -1; + + var str = this.str; + + var c = str.getByte(); + while (Lexer.isSpace(c)) { + c = str.getByte(); + } + + if (c === EOF || c === TILDA_CHAR) { + this.eof = true; + return; + } + + var bufferLength = this.bufferLength, buffer; + var i; + + // special code for z + if (c === Z_LOWER_CHAR) { + buffer = this.ensureBuffer(bufferLength + 4); + for (i = 0; i < 4; ++i) { + buffer[bufferLength + i] = 0; + } + this.bufferLength += 4; + } else { + var input = this.input; + input[0] = c; + for (i = 1; i < 5; ++i) { + c = str.getByte(); + while (Lexer.isSpace(c)) { + c = str.getByte(); + } + + input[i] = c; + + if (c === EOF || c === TILDA_CHAR) { + break; + } + } + buffer = this.ensureBuffer(bufferLength + i - 1); + this.bufferLength += i - 1; + + // partial ending; + if (i < 5) { + for (; i < 5; ++i) { + input[i] = 0x21 + 84; + } + this.eof = true; + } + var t = 0; + for (i = 0; i < 5; ++i) { + t = t * 85 + (input[i] - 0x21); + } + + for (i = 3; i >= 0; --i) { + buffer[bufferLength + i] = t & 0xFF; + t >>= 8; + } + } + }; + + return Ascii85Stream; +})(); + +var AsciiHexStream = (function AsciiHexStreamClosure() { + function AsciiHexStream(str, maybeLength) { + this.str = str; + this.dict = str.dict; + + this.firstDigit = -1; + + // Most streams increase in size when decoded, but AsciiHex streams shrink + // by 50%. + if (maybeLength) { + maybeLength = 0.5 * maybeLength; + } + DecodeStream.call(this, maybeLength); + } + + AsciiHexStream.prototype = Object.create(DecodeStream.prototype); + + AsciiHexStream.prototype.readBlock = function AsciiHexStream_readBlock() { + var UPSTREAM_BLOCK_SIZE = 8000; + var bytes = this.str.getBytes(UPSTREAM_BLOCK_SIZE); + if (!bytes.length) { + this.eof = true; + return; + } + + var maxDecodeLength = (bytes.length + 1) >> 1; + var buffer = this.ensureBuffer(this.bufferLength + maxDecodeLength); + var bufferLength = this.bufferLength; + + var firstDigit = this.firstDigit; + for (var i = 0, ii = bytes.length; i < ii; i++) { + var ch = bytes[i], digit; + if (ch >= 0x30 && ch <= 0x39) { // '0'-'9' + digit = ch & 0x0F; + } else if ((ch >= 0x41 && ch <= 0x46) || (ch >= 0x61 && ch <= 0x66)) { + // 'A'-'Z', 'a'-'z' + digit = (ch & 0x0F) + 9; + } else if (ch === 0x3E) { // '>' + this.eof = true; + break; + } else { // probably whitespace + continue; // ignoring + } + if (firstDigit < 0) { + firstDigit = digit; + } else { + buffer[bufferLength++] = (firstDigit << 4) | digit; + firstDigit = -1; + } + } + if (firstDigit >= 0 && this.eof) { + // incomplete byte + buffer[bufferLength++] = (firstDigit << 4); + firstDigit = -1; + } + this.firstDigit = firstDigit; + this.bufferLength = bufferLength; + }; + + return AsciiHexStream; +})(); + +var RunLengthStream = (function RunLengthStreamClosure() { + function RunLengthStream(str, maybeLength) { + this.str = str; + this.dict = str.dict; + + DecodeStream.call(this, maybeLength); + } + + RunLengthStream.prototype = Object.create(DecodeStream.prototype); + + RunLengthStream.prototype.readBlock = function RunLengthStream_readBlock() { + // The repeatHeader has following format. The first byte defines type of run + // and amount of bytes to repeat/copy: n = 0 through 127 - copy next n bytes + // (in addition to the second byte from the header), n = 129 through 255 - + // duplicate the second byte from the header (257 - n) times, n = 128 - end. + var repeatHeader = this.str.getBytes(2); + if (!repeatHeader || repeatHeader.length < 2 || repeatHeader[0] === 128) { + this.eof = true; + return; + } + + var buffer; + var bufferLength = this.bufferLength; + var n = repeatHeader[0]; + if (n < 128) { + // copy n bytes + buffer = this.ensureBuffer(bufferLength + n + 1); + buffer[bufferLength++] = repeatHeader[1]; + if (n > 0) { + var source = this.str.getBytes(n); + buffer.set(source, bufferLength); + bufferLength += n; + } + } else { + n = 257 - n; + var b = repeatHeader[1]; + buffer = this.ensureBuffer(bufferLength + n + 1); + for (var i = 0; i < n; i++) { + buffer[bufferLength++] = b; + } + } + this.bufferLength = bufferLength; + }; + + return RunLengthStream; +})(); + +var CCITTFaxStream = (function CCITTFaxStreamClosure() { + + var ccittEOL = -2; + var twoDimPass = 0; + var twoDimHoriz = 1; + var twoDimVert0 = 2; + var twoDimVertR1 = 3; + var twoDimVertL1 = 4; + var twoDimVertR2 = 5; + var twoDimVertL2 = 6; + var twoDimVertR3 = 7; + var twoDimVertL3 = 8; + + var twoDimTable = [ + [-1, -1], [-1, -1], // 000000x + [7, twoDimVertL3], // 0000010 + [7, twoDimVertR3], // 0000011 + [6, twoDimVertL2], [6, twoDimVertL2], // 000010x + [6, twoDimVertR2], [6, twoDimVertR2], // 000011x + [4, twoDimPass], [4, twoDimPass], // 0001xxx + [4, twoDimPass], [4, twoDimPass], + [4, twoDimPass], [4, twoDimPass], + [4, twoDimPass], [4, twoDimPass], + [3, twoDimHoriz], [3, twoDimHoriz], // 001xxxx + [3, twoDimHoriz], [3, twoDimHoriz], + [3, twoDimHoriz], [3, twoDimHoriz], + [3, twoDimHoriz], [3, twoDimHoriz], + [3, twoDimHoriz], [3, twoDimHoriz], + [3, twoDimHoriz], [3, twoDimHoriz], + [3, twoDimHoriz], [3, twoDimHoriz], + [3, twoDimHoriz], [3, twoDimHoriz], + [3, twoDimVertL1], [3, twoDimVertL1], // 010xxxx + [3, twoDimVertL1], [3, twoDimVertL1], + [3, twoDimVertL1], [3, twoDimVertL1], + [3, twoDimVertL1], [3, twoDimVertL1], + [3, twoDimVertL1], [3, twoDimVertL1], + [3, twoDimVertL1], [3, twoDimVertL1], + [3, twoDimVertL1], [3, twoDimVertL1], + [3, twoDimVertL1], [3, twoDimVertL1], + [3, twoDimVertR1], [3, twoDimVertR1], // 011xxxx + [3, twoDimVertR1], [3, twoDimVertR1], + [3, twoDimVertR1], [3, twoDimVertR1], + [3, twoDimVertR1], [3, twoDimVertR1], + [3, twoDimVertR1], [3, twoDimVertR1], + [3, twoDimVertR1], [3, twoDimVertR1], + [3, twoDimVertR1], [3, twoDimVertR1], + [3, twoDimVertR1], [3, twoDimVertR1], + [1, twoDimVert0], [1, twoDimVert0], // 1xxxxxx + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0], + [1, twoDimVert0], [1, twoDimVert0] + ]; + + var whiteTable1 = [ + [-1, -1], // 00000 + [12, ccittEOL], // 00001 + [-1, -1], [-1, -1], // 0001x + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 001xx + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 010xx + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 011xx + [11, 1792], [11, 1792], // 1000x + [12, 1984], // 10010 + [12, 2048], // 10011 + [12, 2112], // 10100 + [12, 2176], // 10101 + [12, 2240], // 10110 + [12, 2304], // 10111 + [11, 1856], [11, 1856], // 1100x + [11, 1920], [11, 1920], // 1101x + [12, 2368], // 11100 + [12, 2432], // 11101 + [12, 2496], // 11110 + [12, 2560] // 11111 + ]; + + var whiteTable2 = [ + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 0000000xx + [8, 29], [8, 29], // 00000010x + [8, 30], [8, 30], // 00000011x + [8, 45], [8, 45], // 00000100x + [8, 46], [8, 46], // 00000101x + [7, 22], [7, 22], [7, 22], [7, 22], // 0000011xx + [7, 23], [7, 23], [7, 23], [7, 23], // 0000100xx + [8, 47], [8, 47], // 00001010x + [8, 48], [8, 48], // 00001011x + [6, 13], [6, 13], [6, 13], [6, 13], // 000011xxx + [6, 13], [6, 13], [6, 13], [6, 13], + [7, 20], [7, 20], [7, 20], [7, 20], // 0001000xx + [8, 33], [8, 33], // 00010010x + [8, 34], [8, 34], // 00010011x + [8, 35], [8, 35], // 00010100x + [8, 36], [8, 36], // 00010101x + [8, 37], [8, 37], // 00010110x + [8, 38], [8, 38], // 00010111x + [7, 19], [7, 19], [7, 19], [7, 19], // 0001100xx + [8, 31], [8, 31], // 00011010x + [8, 32], [8, 32], // 00011011x + [6, 1], [6, 1], [6, 1], [6, 1], // 000111xxx + [6, 1], [6, 1], [6, 1], [6, 1], + [6, 12], [6, 12], [6, 12], [6, 12], // 001000xxx + [6, 12], [6, 12], [6, 12], [6, 12], + [8, 53], [8, 53], // 00100100x + [8, 54], [8, 54], // 00100101x + [7, 26], [7, 26], [7, 26], [7, 26], // 0010011xx + [8, 39], [8, 39], // 00101000x + [8, 40], [8, 40], // 00101001x + [8, 41], [8, 41], // 00101010x + [8, 42], [8, 42], // 00101011x + [8, 43], [8, 43], // 00101100x + [8, 44], [8, 44], // 00101101x + [7, 21], [7, 21], [7, 21], [7, 21], // 0010111xx + [7, 28], [7, 28], [7, 28], [7, 28], // 0011000xx + [8, 61], [8, 61], // 00110010x + [8, 62], [8, 62], // 00110011x + [8, 63], [8, 63], // 00110100x + [8, 0], [8, 0], // 00110101x + [8, 320], [8, 320], // 00110110x + [8, 384], [8, 384], // 00110111x + [5, 10], [5, 10], [5, 10], [5, 10], // 00111xxxx + [5, 10], [5, 10], [5, 10], [5, 10], + [5, 10], [5, 10], [5, 10], [5, 10], + [5, 10], [5, 10], [5, 10], [5, 10], + [5, 11], [5, 11], [5, 11], [5, 11], // 01000xxxx + [5, 11], [5, 11], [5, 11], [5, 11], + [5, 11], [5, 11], [5, 11], [5, 11], + [5, 11], [5, 11], [5, 11], [5, 11], + [7, 27], [7, 27], [7, 27], [7, 27], // 0100100xx + [8, 59], [8, 59], // 01001010x + [8, 60], [8, 60], // 01001011x + [9, 1472], // 010011000 + [9, 1536], // 010011001 + [9, 1600], // 010011010 + [9, 1728], // 010011011 + [7, 18], [7, 18], [7, 18], [7, 18], // 0100111xx + [7, 24], [7, 24], [7, 24], [7, 24], // 0101000xx + [8, 49], [8, 49], // 01010010x + [8, 50], [8, 50], // 01010011x + [8, 51], [8, 51], // 01010100x + [8, 52], [8, 52], // 01010101x + [7, 25], [7, 25], [7, 25], [7, 25], // 0101011xx + [8, 55], [8, 55], // 01011000x + [8, 56], [8, 56], // 01011001x + [8, 57], [8, 57], // 01011010x + [8, 58], [8, 58], // 01011011x + [6, 192], [6, 192], [6, 192], [6, 192], // 010111xxx + [6, 192], [6, 192], [6, 192], [6, 192], + [6, 1664], [6, 1664], [6, 1664], [6, 1664], // 011000xxx + [6, 1664], [6, 1664], [6, 1664], [6, 1664], + [8, 448], [8, 448], // 01100100x + [8, 512], [8, 512], // 01100101x + [9, 704], // 011001100 + [9, 768], // 011001101 + [8, 640], [8, 640], // 01100111x + [8, 576], [8, 576], // 01101000x + [9, 832], // 011010010 + [9, 896], // 011010011 + [9, 960], // 011010100 + [9, 1024], // 011010101 + [9, 1088], // 011010110 + [9, 1152], // 011010111 + [9, 1216], // 011011000 + [9, 1280], // 011011001 + [9, 1344], // 011011010 + [9, 1408], // 011011011 + [7, 256], [7, 256], [7, 256], [7, 256], // 0110111xx + [4, 2], [4, 2], [4, 2], [4, 2], // 0111xxxxx + [4, 2], [4, 2], [4, 2], [4, 2], + [4, 2], [4, 2], [4, 2], [4, 2], + [4, 2], [4, 2], [4, 2], [4, 2], + [4, 2], [4, 2], [4, 2], [4, 2], + [4, 2], [4, 2], [4, 2], [4, 2], + [4, 2], [4, 2], [4, 2], [4, 2], + [4, 2], [4, 2], [4, 2], [4, 2], + [4, 3], [4, 3], [4, 3], [4, 3], // 1000xxxxx + [4, 3], [4, 3], [4, 3], [4, 3], + [4, 3], [4, 3], [4, 3], [4, 3], + [4, 3], [4, 3], [4, 3], [4, 3], + [4, 3], [4, 3], [4, 3], [4, 3], + [4, 3], [4, 3], [4, 3], [4, 3], + [4, 3], [4, 3], [4, 3], [4, 3], + [4, 3], [4, 3], [4, 3], [4, 3], + [5, 128], [5, 128], [5, 128], [5, 128], // 10010xxxx + [5, 128], [5, 128], [5, 128], [5, 128], + [5, 128], [5, 128], [5, 128], [5, 128], + [5, 128], [5, 128], [5, 128], [5, 128], + [5, 8], [5, 8], [5, 8], [5, 8], // 10011xxxx + [5, 8], [5, 8], [5, 8], [5, 8], + [5, 8], [5, 8], [5, 8], [5, 8], + [5, 8], [5, 8], [5, 8], [5, 8], + [5, 9], [5, 9], [5, 9], [5, 9], // 10100xxxx + [5, 9], [5, 9], [5, 9], [5, 9], + [5, 9], [5, 9], [5, 9], [5, 9], + [5, 9], [5, 9], [5, 9], [5, 9], + [6, 16], [6, 16], [6, 16], [6, 16], // 101010xxx + [6, 16], [6, 16], [6, 16], [6, 16], + [6, 17], [6, 17], [6, 17], [6, 17], // 101011xxx + [6, 17], [6, 17], [6, 17], [6, 17], + [4, 4], [4, 4], [4, 4], [4, 4], // 1011xxxxx + [4, 4], [4, 4], [4, 4], [4, 4], + [4, 4], [4, 4], [4, 4], [4, 4], + [4, 4], [4, 4], [4, 4], [4, 4], + [4, 4], [4, 4], [4, 4], [4, 4], + [4, 4], [4, 4], [4, 4], [4, 4], + [4, 4], [4, 4], [4, 4], [4, 4], + [4, 4], [4, 4], [4, 4], [4, 4], + [4, 5], [4, 5], [4, 5], [4, 5], // 1100xxxxx + [4, 5], [4, 5], [4, 5], [4, 5], + [4, 5], [4, 5], [4, 5], [4, 5], + [4, 5], [4, 5], [4, 5], [4, 5], + [4, 5], [4, 5], [4, 5], [4, 5], + [4, 5], [4, 5], [4, 5], [4, 5], + [4, 5], [4, 5], [4, 5], [4, 5], + [4, 5], [4, 5], [4, 5], [4, 5], + [6, 14], [6, 14], [6, 14], [6, 14], // 110100xxx + [6, 14], [6, 14], [6, 14], [6, 14], + [6, 15], [6, 15], [6, 15], [6, 15], // 110101xxx + [6, 15], [6, 15], [6, 15], [6, 15], + [5, 64], [5, 64], [5, 64], [5, 64], // 11011xxxx + [5, 64], [5, 64], [5, 64], [5, 64], + [5, 64], [5, 64], [5, 64], [5, 64], + [5, 64], [5, 64], [5, 64], [5, 64], + [4, 6], [4, 6], [4, 6], [4, 6], // 1110xxxxx + [4, 6], [4, 6], [4, 6], [4, 6], + [4, 6], [4, 6], [4, 6], [4, 6], + [4, 6], [4, 6], [4, 6], [4, 6], + [4, 6], [4, 6], [4, 6], [4, 6], + [4, 6], [4, 6], [4, 6], [4, 6], + [4, 6], [4, 6], [4, 6], [4, 6], + [4, 6], [4, 6], [4, 6], [4, 6], + [4, 7], [4, 7], [4, 7], [4, 7], // 1111xxxxx + [4, 7], [4, 7], [4, 7], [4, 7], + [4, 7], [4, 7], [4, 7], [4, 7], + [4, 7], [4, 7], [4, 7], [4, 7], + [4, 7], [4, 7], [4, 7], [4, 7], + [4, 7], [4, 7], [4, 7], [4, 7], + [4, 7], [4, 7], [4, 7], [4, 7], + [4, 7], [4, 7], [4, 7], [4, 7] + ]; + + var blackTable1 = [ + [-1, -1], [-1, -1], // 000000000000x + [12, ccittEOL], [12, ccittEOL], // 000000000001x + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000001xx + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000010xx + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000011xx + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000100xx + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000101xx + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000110xx + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000111xx + [11, 1792], [11, 1792], [11, 1792], [11, 1792], // 00000001000xx + [12, 1984], [12, 1984], // 000000010010x + [12, 2048], [12, 2048], // 000000010011x + [12, 2112], [12, 2112], // 000000010100x + [12, 2176], [12, 2176], // 000000010101x + [12, 2240], [12, 2240], // 000000010110x + [12, 2304], [12, 2304], // 000000010111x + [11, 1856], [11, 1856], [11, 1856], [11, 1856], // 00000001100xx + [11, 1920], [11, 1920], [11, 1920], [11, 1920], // 00000001101xx + [12, 2368], [12, 2368], // 000000011100x + [12, 2432], [12, 2432], // 000000011101x + [12, 2496], [12, 2496], // 000000011110x + [12, 2560], [12, 2560], // 000000011111x + [10, 18], [10, 18], [10, 18], [10, 18], // 0000001000xxx + [10, 18], [10, 18], [10, 18], [10, 18], + [12, 52], [12, 52], // 000000100100x + [13, 640], // 0000001001010 + [13, 704], // 0000001001011 + [13, 768], // 0000001001100 + [13, 832], // 0000001001101 + [12, 55], [12, 55], // 000000100111x + [12, 56], [12, 56], // 000000101000x + [13, 1280], // 0000001010010 + [13, 1344], // 0000001010011 + [13, 1408], // 0000001010100 + [13, 1472], // 0000001010101 + [12, 59], [12, 59], // 000000101011x + [12, 60], [12, 60], // 000000101100x + [13, 1536], // 0000001011010 + [13, 1600], // 0000001011011 + [11, 24], [11, 24], [11, 24], [11, 24], // 00000010111xx + [11, 25], [11, 25], [11, 25], [11, 25], // 00000011000xx + [13, 1664], // 0000001100100 + [13, 1728], // 0000001100101 + [12, 320], [12, 320], // 000000110011x + [12, 384], [12, 384], // 000000110100x + [12, 448], [12, 448], // 000000110101x + [13, 512], // 0000001101100 + [13, 576], // 0000001101101 + [12, 53], [12, 53], // 000000110111x + [12, 54], [12, 54], // 000000111000x + [13, 896], // 0000001110010 + [13, 960], // 0000001110011 + [13, 1024], // 0000001110100 + [13, 1088], // 0000001110101 + [13, 1152], // 0000001110110 + [13, 1216], // 0000001110111 + [10, 64], [10, 64], [10, 64], [10, 64], // 0000001111xxx + [10, 64], [10, 64], [10, 64], [10, 64] + ]; + + var blackTable2 = [ + [8, 13], [8, 13], [8, 13], [8, 13], // 00000100xxxx + [8, 13], [8, 13], [8, 13], [8, 13], + [8, 13], [8, 13], [8, 13], [8, 13], + [8, 13], [8, 13], [8, 13], [8, 13], + [11, 23], [11, 23], // 00000101000x + [12, 50], // 000001010010 + [12, 51], // 000001010011 + [12, 44], // 000001010100 + [12, 45], // 000001010101 + [12, 46], // 000001010110 + [12, 47], // 000001010111 + [12, 57], // 000001011000 + [12, 58], // 000001011001 + [12, 61], // 000001011010 + [12, 256], // 000001011011 + [10, 16], [10, 16], [10, 16], [10, 16], // 0000010111xx + [10, 17], [10, 17], [10, 17], [10, 17], // 0000011000xx + [12, 48], // 000001100100 + [12, 49], // 000001100101 + [12, 62], // 000001100110 + [12, 63], // 000001100111 + [12, 30], // 000001101000 + [12, 31], // 000001101001 + [12, 32], // 000001101010 + [12, 33], // 000001101011 + [12, 40], // 000001101100 + [12, 41], // 000001101101 + [11, 22], [11, 22], // 00000110111x + [8, 14], [8, 14], [8, 14], [8, 14], // 00000111xxxx + [8, 14], [8, 14], [8, 14], [8, 14], + [8, 14], [8, 14], [8, 14], [8, 14], + [8, 14], [8, 14], [8, 14], [8, 14], + [7, 10], [7, 10], [7, 10], [7, 10], // 0000100xxxxx + [7, 10], [7, 10], [7, 10], [7, 10], + [7, 10], [7, 10], [7, 10], [7, 10], + [7, 10], [7, 10], [7, 10], [7, 10], + [7, 10], [7, 10], [7, 10], [7, 10], + [7, 10], [7, 10], [7, 10], [7, 10], + [7, 10], [7, 10], [7, 10], [7, 10], + [7, 10], [7, 10], [7, 10], [7, 10], + [7, 11], [7, 11], [7, 11], [7, 11], // 0000101xxxxx + [7, 11], [7, 11], [7, 11], [7, 11], + [7, 11], [7, 11], [7, 11], [7, 11], + [7, 11], [7, 11], [7, 11], [7, 11], + [7, 11], [7, 11], [7, 11], [7, 11], + [7, 11], [7, 11], [7, 11], [7, 11], + [7, 11], [7, 11], [7, 11], [7, 11], + [7, 11], [7, 11], [7, 11], [7, 11], + [9, 15], [9, 15], [9, 15], [9, 15], // 000011000xxx + [9, 15], [9, 15], [9, 15], [9, 15], + [12, 128], // 000011001000 + [12, 192], // 000011001001 + [12, 26], // 000011001010 + [12, 27], // 000011001011 + [12, 28], // 000011001100 + [12, 29], // 000011001101 + [11, 19], [11, 19], // 00001100111x + [11, 20], [11, 20], // 00001101000x + [12, 34], // 000011010010 + [12, 35], // 000011010011 + [12, 36], // 000011010100 + [12, 37], // 000011010101 + [12, 38], // 000011010110 + [12, 39], // 000011010111 + [11, 21], [11, 21], // 00001101100x + [12, 42], // 000011011010 + [12, 43], // 000011011011 + [10, 0], [10, 0], [10, 0], [10, 0], // 0000110111xx + [7, 12], [7, 12], [7, 12], [7, 12], // 0000111xxxxx + [7, 12], [7, 12], [7, 12], [7, 12], + [7, 12], [7, 12], [7, 12], [7, 12], + [7, 12], [7, 12], [7, 12], [7, 12], + [7, 12], [7, 12], [7, 12], [7, 12], + [7, 12], [7, 12], [7, 12], [7, 12], + [7, 12], [7, 12], [7, 12], [7, 12], + [7, 12], [7, 12], [7, 12], [7, 12] + ]; + + var blackTable3 = [ + [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 0000xx + [6, 9], // 000100 + [6, 8], // 000101 + [5, 7], [5, 7], // 00011x + [4, 6], [4, 6], [4, 6], [4, 6], // 0010xx + [4, 5], [4, 5], [4, 5], [4, 5], // 0011xx + [3, 1], [3, 1], [3, 1], [3, 1], // 010xxx + [3, 1], [3, 1], [3, 1], [3, 1], + [3, 4], [3, 4], [3, 4], [3, 4], // 011xxx + [3, 4], [3, 4], [3, 4], [3, 4], + [2, 3], [2, 3], [2, 3], [2, 3], // 10xxxx + [2, 3], [2, 3], [2, 3], [2, 3], + [2, 3], [2, 3], [2, 3], [2, 3], + [2, 3], [2, 3], [2, 3], [2, 3], + [2, 2], [2, 2], [2, 2], [2, 2], // 11xxxx + [2, 2], [2, 2], [2, 2], [2, 2], + [2, 2], [2, 2], [2, 2], [2, 2], + [2, 2], [2, 2], [2, 2], [2, 2] + ]; + + function CCITTFaxStream(str, maybeLength, params) { + this.str = str; + this.dict = str.dict; + + params = params || Dict.empty; + + this.encoding = params.get('K') || 0; + this.eoline = params.get('EndOfLine') || false; + this.byteAlign = params.get('EncodedByteAlign') || false; + this.columns = params.get('Columns') || 1728; + this.rows = params.get('Rows') || 0; + var eoblock = params.get('EndOfBlock'); + if (eoblock === null || eoblock === undefined) { + eoblock = true; + } + this.eoblock = eoblock; + this.black = params.get('BlackIs1') || false; + + this.codingLine = new Uint32Array(this.columns + 1); + this.refLine = new Uint32Array(this.columns + 2); + + this.codingLine[0] = this.columns; + this.codingPos = 0; + + this.row = 0; + this.nextLine2D = this.encoding < 0; + this.inputBits = 0; + this.inputBuf = 0; + this.outputBits = 0; + + var code1; + while ((code1 = this.lookBits(12)) === 0) { + this.eatBits(1); + } + if (code1 === 1) { + this.eatBits(12); + } + if (this.encoding > 0) { + this.nextLine2D = !this.lookBits(1); + this.eatBits(1); + } + + DecodeStream.call(this, maybeLength); + } + + CCITTFaxStream.prototype = Object.create(DecodeStream.prototype); + + CCITTFaxStream.prototype.readBlock = function CCITTFaxStream_readBlock() { + while (!this.eof) { + var c = this.lookChar(); + this.ensureBuffer(this.bufferLength + 1); + this.buffer[this.bufferLength++] = c; + } + }; + + CCITTFaxStream.prototype.addPixels = + function ccittFaxStreamAddPixels(a1, blackPixels) { + var codingLine = this.codingLine; + var codingPos = this.codingPos; + + if (a1 > codingLine[codingPos]) { + if (a1 > this.columns) { + info('row is wrong length'); + this.err = true; + a1 = this.columns; + } + if ((codingPos & 1) ^ blackPixels) { + ++codingPos; + } + + codingLine[codingPos] = a1; + } + this.codingPos = codingPos; + }; + + CCITTFaxStream.prototype.addPixelsNeg = + function ccittFaxStreamAddPixelsNeg(a1, blackPixels) { + var codingLine = this.codingLine; + var codingPos = this.codingPos; + + if (a1 > codingLine[codingPos]) { + if (a1 > this.columns) { + info('row is wrong length'); + this.err = true; + a1 = this.columns; + } + if ((codingPos & 1) ^ blackPixels) { + ++codingPos; + } + + codingLine[codingPos] = a1; + } else if (a1 < codingLine[codingPos]) { + if (a1 < 0) { + info('invalid code'); + this.err = true; + a1 = 0; + } + while (codingPos > 0 && a1 < codingLine[codingPos - 1]) { + --codingPos; + } + codingLine[codingPos] = a1; + } + + this.codingPos = codingPos; + }; + + CCITTFaxStream.prototype.lookChar = function CCITTFaxStream_lookChar() { + var refLine = this.refLine; + var codingLine = this.codingLine; + var columns = this.columns; + + var refPos, blackPixels, bits, i; + + if (this.outputBits === 0) { + if (this.eof) { + return null; + } + this.err = false; + + var code1, code2, code3; + if (this.nextLine2D) { + for (i = 0; codingLine[i] < columns; ++i) { + refLine[i] = codingLine[i]; + } + refLine[i++] = columns; + refLine[i] = columns; + codingLine[0] = 0; + this.codingPos = 0; + refPos = 0; + blackPixels = 0; + + while (codingLine[this.codingPos] < columns) { + code1 = this.getTwoDimCode(); + switch (code1) { + case twoDimPass: + this.addPixels(refLine[refPos + 1], blackPixels); + if (refLine[refPos + 1] < columns) { + refPos += 2; + } + break; + case twoDimHoriz: + code1 = code2 = 0; + if (blackPixels) { + do { + code1 += (code3 = this.getBlackCode()); + } while (code3 >= 64); + do { + code2 += (code3 = this.getWhiteCode()); + } while (code3 >= 64); + } else { + do { + code1 += (code3 = this.getWhiteCode()); + } while (code3 >= 64); + do { + code2 += (code3 = this.getBlackCode()); + } while (code3 >= 64); + } + this.addPixels(codingLine[this.codingPos] + + code1, blackPixels); + if (codingLine[this.codingPos] < columns) { + this.addPixels(codingLine[this.codingPos] + code2, + blackPixels ^ 1); + } + while (refLine[refPos] <= codingLine[this.codingPos] && + refLine[refPos] < columns) { + refPos += 2; + } + break; + case twoDimVertR3: + this.addPixels(refLine[refPos] + 3, blackPixels); + blackPixels ^= 1; + if (codingLine[this.codingPos] < columns) { + ++refPos; + while (refLine[refPos] <= codingLine[this.codingPos] && + refLine[refPos] < columns) { + refPos += 2; + } + } + break; + case twoDimVertR2: + this.addPixels(refLine[refPos] + 2, blackPixels); + blackPixels ^= 1; + if (codingLine[this.codingPos] < columns) { + ++refPos; + while (refLine[refPos] <= codingLine[this.codingPos] && + refLine[refPos] < columns) { + refPos += 2; + } + } + break; + case twoDimVertR1: + this.addPixels(refLine[refPos] + 1, blackPixels); + blackPixels ^= 1; + if (codingLine[this.codingPos] < columns) { + ++refPos; + while (refLine[refPos] <= codingLine[this.codingPos] && + refLine[refPos] < columns) { + refPos += 2; + } + } + break; + case twoDimVert0: + this.addPixels(refLine[refPos], blackPixels); + blackPixels ^= 1; + if (codingLine[this.codingPos] < columns) { + ++refPos; + while (refLine[refPos] <= codingLine[this.codingPos] && + refLine[refPos] < columns) { + refPos += 2; + } + } + break; + case twoDimVertL3: + this.addPixelsNeg(refLine[refPos] - 3, blackPixels); + blackPixels ^= 1; + if (codingLine[this.codingPos] < columns) { + if (refPos > 0) { + --refPos; + } else { + ++refPos; + } + while (refLine[refPos] <= codingLine[this.codingPos] && + refLine[refPos] < columns) { + refPos += 2; + } + } + break; + case twoDimVertL2: + this.addPixelsNeg(refLine[refPos] - 2, blackPixels); + blackPixels ^= 1; + if (codingLine[this.codingPos] < columns) { + if (refPos > 0) { + --refPos; + } else { + ++refPos; + } + while (refLine[refPos] <= codingLine[this.codingPos] && + refLine[refPos] < columns) { + refPos += 2; + } + } + break; + case twoDimVertL1: + this.addPixelsNeg(refLine[refPos] - 1, blackPixels); + blackPixels ^= 1; + if (codingLine[this.codingPos] < columns) { + if (refPos > 0) { + --refPos; + } else { + ++refPos; + } + while (refLine[refPos] <= codingLine[this.codingPos] && + refLine[refPos] < columns) { + refPos += 2; + } + } + break; + case EOF: + this.addPixels(columns, 0); + this.eof = true; + break; + default: + info('bad 2d code'); + this.addPixels(columns, 0); + this.err = true; } } } else { - for (i = 0; i < count; i++) { - for (j = 0; j < numComps; j++) { - scaled[j] = src[srcOffset++] * scale; + codingLine[0] = 0; + this.codingPos = 0; + blackPixels = 0; + while (codingLine[this.codingPos] < columns) { + code1 = 0; + if (blackPixels) { + do { + code1 += (code3 = this.getBlackCode()); + } while (code3 >= 64); + } else { + do { + code1 += (code3 = this.getWhiteCode()); + } while (code3 >= 64); } - tintFn(scaled, 0, tinted, 0); - base.getRgbItem(tinted, 0, baseBuf, pos); - pos += baseNumComps; + this.addPixels(codingLine[this.codingPos] + code1, blackPixels); + blackPixels ^= 1; } } - if (!isPassthrough) { - base.getRgbBuffer(baseBuf, 0, count, dest, destOffset, 8, alpha01); + + var gotEOL = false; + + if (this.byteAlign) { + this.inputBits &= ~7; } - }, - getOutputLength: function AlternateCS_getOutputLength(inputLength, - alpha01) { - return this.base.getOutputLength(inputLength * - this.base.numComps / this.numComps, - alpha01); - }, - isPassthrough: ColorSpace.prototype.isPassthrough, - fillRgb: ColorSpace.prototype.fillRgb, - isDefaultDecode: function AlternateCS_isDefaultDecode(decodeMap) { - return ColorSpace.isDefaultDecode(decodeMap, this.numComps); - }, - usesZeroToOneRange: true - }; - return AlternateCS; -})(); - -var PatternCS = (function PatternCSClosure() { - function PatternCS(baseCS) { - this.name = 'Pattern'; - this.base = baseCS; - } - PatternCS.prototype = {}; - - return PatternCS; -})(); - -var IndexedCS = (function IndexedCSClosure() { - function IndexedCS(base, highVal, lookup) { - this.name = 'Indexed'; - this.numComps = 1; - this.defaultColor = new Uint8Array([0]); - this.base = base; - this.highVal = highVal; - - var baseNumComps = base.numComps; - var length = baseNumComps * highVal; - var lookupArray; - - if (isStream(lookup)) { - lookupArray = new Uint8Array(length); - var bytes = lookup.getBytes(length); - lookupArray.set(bytes); - } else if (isString(lookup)) { - lookupArray = new Uint8Array(length); - for (var i = 0; i < length; ++i) { - lookupArray[i] = lookup.charCodeAt(i); + if (!this.eoblock && this.row === this.rows - 1) { + this.eof = true; + } else { + code1 = this.lookBits(12); + if (this.eoline) { + while (code1 !== EOF && code1 !== 1) { + this.eatBits(1); + code1 = this.lookBits(12); + } + } else { + while (code1 === 0) { + this.eatBits(1); + code1 = this.lookBits(12); + } + } + if (code1 === 1) { + this.eatBits(12); + gotEOL = true; + } else if (code1 === EOF) { + this.eof = true; + } + } + + if (!this.eof && this.encoding > 0) { + this.nextLine2D = !this.lookBits(1); + this.eatBits(1); + } + + if (this.eoblock && gotEOL && this.byteAlign) { + code1 = this.lookBits(12); + if (code1 === 1) { + this.eatBits(12); + if (this.encoding > 0) { + this.lookBits(1); + this.eatBits(1); + } + if (this.encoding >= 0) { + for (i = 0; i < 4; ++i) { + code1 = this.lookBits(12); + if (code1 !== 1) { + info('bad rtc code: ' + code1); + } + this.eatBits(12); + if (this.encoding > 0) { + this.lookBits(1); + this.eatBits(1); + } + } + } + this.eof = true; + } + } else if (this.err && this.eoline) { + while (true) { + code1 = this.lookBits(13); + if (code1 === EOF) { + this.eof = true; + return null; + } + if ((code1 >> 1) === 1) { + break; + } + this.eatBits(1); + } + this.eatBits(12); + if (this.encoding > 0) { + this.eatBits(1); + this.nextLine2D = !(code1 & 1); + } + } + + if (codingLine[0] > 0) { + this.outputBits = codingLine[this.codingPos = 0]; + } else { + this.outputBits = codingLine[this.codingPos = 1]; + } + this.row++; + } + + var c; + if (this.outputBits >= 8) { + c = (this.codingPos & 1) ? 0 : 0xFF; + this.outputBits -= 8; + if (this.outputBits === 0 && codingLine[this.codingPos] < columns) { + this.codingPos++; + this.outputBits = (codingLine[this.codingPos] - + codingLine[this.codingPos - 1]); } - } else if (lookup instanceof Uint8Array || lookup instanceof Array) { - lookupArray = lookup; } else { - error('Unrecognized lookup table: ' + lookup); + bits = 8; + c = 0; + do { + if (this.outputBits > bits) { + c <<= bits; + if (!(this.codingPos & 1)) { + c |= 0xFF >> (8 - bits); + } + this.outputBits -= bits; + bits = 0; + } else { + c <<= this.outputBits; + if (!(this.codingPos & 1)) { + c |= 0xFF >> (8 - this.outputBits); + } + bits -= this.outputBits; + this.outputBits = 0; + if (codingLine[this.codingPos] < columns) { + this.codingPos++; + this.outputBits = (codingLine[this.codingPos] - + codingLine[this.codingPos - 1]); + } else if (bits > 0) { + c <<= bits; + bits = 0; + } + } + } while (bits); } - this.lookup = lookupArray; - } - - IndexedCS.prototype = { - getRgb: ColorSpace.prototype.getRgb, - getRgbItem: function IndexedCS_getRgbItem(src, srcOffset, - dest, destOffset) { - var numComps = this.base.numComps; - var start = src[srcOffset] * numComps; - this.base.getRgbItem(this.lookup, start, dest, destOffset); - }, - getRgbBuffer: function IndexedCS_getRgbBuffer(src, srcOffset, count, - dest, destOffset, bits, - alpha01) { - var base = this.base; - var numComps = base.numComps; - var outputDelta = base.getOutputLength(numComps, alpha01); - var lookup = this.lookup; - - for (var i = 0; i < count; ++i) { - var lookupPos = src[srcOffset++] * numComps; - base.getRgbBuffer(lookup, lookupPos, 1, dest, destOffset, 8, alpha01); - destOffset += outputDelta; - } - }, - getOutputLength: function IndexedCS_getOutputLength(inputLength, alpha01) { - return this.base.getOutputLength(inputLength * this.base.numComps, - alpha01); - }, - isPassthrough: ColorSpace.prototype.isPassthrough, - fillRgb: ColorSpace.prototype.fillRgb, - isDefaultDecode: function IndexedCS_isDefaultDecode(decodeMap) { - // indexed color maps shouldn't be changed - return true; - }, - usesZeroToOneRange: true - }; - return IndexedCS; -})(); - -var DeviceGrayCS = (function DeviceGrayCSClosure() { - function DeviceGrayCS() { - this.name = 'DeviceGray'; - this.numComps = 1; - this.defaultColor = new Float32Array([0]); - } - - DeviceGrayCS.prototype = { - getRgb: ColorSpace.prototype.getRgb, - getRgbItem: function DeviceGrayCS_getRgbItem(src, srcOffset, - dest, destOffset) { - var c = (src[srcOffset] * 255) | 0; - c = c < 0 ? 0 : c > 255 ? 255 : c; - dest[destOffset] = dest[destOffset + 1] = dest[destOffset + 2] = c; - }, - getRgbBuffer: function DeviceGrayCS_getRgbBuffer(src, srcOffset, count, - dest, destOffset, bits, - alpha01) { - var scale = 255 / ((1 << bits) - 1); - var j = srcOffset, q = destOffset; - for (var i = 0; i < count; ++i) { - var c = (scale * src[j++]) | 0; - dest[q++] = c; - dest[q++] = c; - dest[q++] = c; - q += alpha01; - } - }, - getOutputLength: function DeviceGrayCS_getOutputLength(inputLength, - alpha01) { - return inputLength * (3 + alpha01); - }, - isPassthrough: ColorSpace.prototype.isPassthrough, - fillRgb: ColorSpace.prototype.fillRgb, - isDefaultDecode: function DeviceGrayCS_isDefaultDecode(decodeMap) { - return ColorSpace.isDefaultDecode(decodeMap, this.numComps); - }, - usesZeroToOneRange: true - }; - return DeviceGrayCS; -})(); - -var DeviceRgbCS = (function DeviceRgbCSClosure() { - function DeviceRgbCS() { - this.name = 'DeviceRGB'; - this.numComps = 3; - this.defaultColor = new Float32Array([0, 0, 0]); - } - DeviceRgbCS.prototype = { - getRgb: ColorSpace.prototype.getRgb, - getRgbItem: function DeviceRgbCS_getRgbItem(src, srcOffset, - dest, destOffset) { - var r = (src[srcOffset] * 255) | 0; - var g = (src[srcOffset + 1] * 255) | 0; - var b = (src[srcOffset + 2] * 255) | 0; - dest[destOffset] = r < 0 ? 0 : r > 255 ? 255 : r; - dest[destOffset + 1] = g < 0 ? 0 : g > 255 ? 255 : g; - dest[destOffset + 2] = b < 0 ? 0 : b > 255 ? 255 : b; - }, - getRgbBuffer: function DeviceRgbCS_getRgbBuffer(src, srcOffset, count, - dest, destOffset, bits, - alpha01) { - if (bits === 8 && alpha01 === 0) { - dest.set(src.subarray(srcOffset, srcOffset + count * 3), destOffset); - return; - } - var scale = 255 / ((1 << bits) - 1); - var j = srcOffset, q = destOffset; - for (var i = 0; i < count; ++i) { - dest[q++] = (scale * src[j++]) | 0; - dest[q++] = (scale * src[j++]) | 0; - dest[q++] = (scale * src[j++]) | 0; - q += alpha01; - } - }, - getOutputLength: function DeviceRgbCS_getOutputLength(inputLength, - alpha01) { - return (inputLength * (3 + alpha01) / 3) | 0; - }, - isPassthrough: function DeviceRgbCS_isPassthrough(bits) { - return bits === 8; - }, - fillRgb: ColorSpace.prototype.fillRgb, - isDefaultDecode: function DeviceRgbCS_isDefaultDecode(decodeMap) { - return ColorSpace.isDefaultDecode(decodeMap, this.numComps); - }, - usesZeroToOneRange: true - }; - return DeviceRgbCS; -})(); - -var DeviceCmykCS = (function DeviceCmykCSClosure() { - // The coefficients below was found using numerical analysis: the method of - // steepest descent for the sum((f_i - color_value_i)^2) for r/g/b colors, - // where color_value is the tabular value from the table of sampled RGB colors - // from CMYK US Web Coated (SWOP) colorspace, and f_i is the corresponding - // CMYK color conversion using the estimation below: - // f(A, B,.. N) = Acc+Bcm+Ccy+Dck+c+Fmm+Gmy+Hmk+Im+Jyy+Kyk+Ly+Mkk+Nk+255 - function convertToRgb(src, srcOffset, srcScale, dest, destOffset) { - var c = src[srcOffset + 0] * srcScale; - var m = src[srcOffset + 1] * srcScale; - var y = src[srcOffset + 2] * srcScale; - var k = src[srcOffset + 3] * srcScale; - - var r = - (c * (-4.387332384609988 * c + 54.48615194189176 * m + - 18.82290502165302 * y + 212.25662451639585 * k + - -285.2331026137004) + - m * (1.7149763477362134 * m - 5.6096736904047315 * y + - -17.873870861415444 * k - 5.497006427196366) + - y * (-2.5217340131683033 * y - 21.248923337353073 * k + - 17.5119270841813) + - k * (-21.86122147463605 * k - 189.48180835922747) + 255) | 0; - var g = - (c * (8.841041422036149 * c + 60.118027045597366 * m + - 6.871425592049007 * y + 31.159100130055922 * k + - -79.2970844816548) + - m * (-15.310361306967817 * m + 17.575251261109482 * y + - 131.35250912493976 * k - 190.9453302588951) + - y * (4.444339102852739 * y + 9.8632861493405 * k - 24.86741582555878) + - k * (-20.737325471181034 * k - 187.80453709719578) + 255) | 0; - var b = - (c * (0.8842522430003296 * c + 8.078677503112928 * m + - 30.89978309703729 * y - 0.23883238689178934 * k + - -14.183576799673286) + - m * (10.49593273432072 * m + 63.02378494754052 * y + - 50.606957656360734 * k - 112.23884253719248) + - y * (0.03296041114873217 * y + 115.60384449646641 * k + - -193.58209356861505) + - k * (-22.33816807309886 * k - 180.12613974708367) + 255) | 0; - - dest[destOffset] = r > 255 ? 255 : r < 0 ? 0 : r; - dest[destOffset + 1] = g > 255 ? 255 : g < 0 ? 0 : g; - dest[destOffset + 2] = b > 255 ? 255 : b < 0 ? 0 : b; - } - - function DeviceCmykCS() { - this.name = 'DeviceCMYK'; - this.numComps = 4; - this.defaultColor = new Float32Array([0, 0, 0, 1]); - } - DeviceCmykCS.prototype = { - getRgb: ColorSpace.prototype.getRgb, - getRgbItem: function DeviceCmykCS_getRgbItem(src, srcOffset, - dest, destOffset) { - convertToRgb(src, srcOffset, 1, dest, destOffset); - }, - getRgbBuffer: function DeviceCmykCS_getRgbBuffer(src, srcOffset, count, - dest, destOffset, bits, - alpha01) { - var scale = 1 / ((1 << bits) - 1); - for (var i = 0; i < count; i++) { - convertToRgb(src, srcOffset, scale, dest, destOffset); - srcOffset += 4; - destOffset += 3 + alpha01; - } - }, - getOutputLength: function DeviceCmykCS_getOutputLength(inputLength, - alpha01) { - return (inputLength / 4 * (3 + alpha01)) | 0; - }, - isPassthrough: ColorSpace.prototype.isPassthrough, - fillRgb: ColorSpace.prototype.fillRgb, - isDefaultDecode: function DeviceCmykCS_isDefaultDecode(decodeMap) { - return ColorSpace.isDefaultDecode(decodeMap, this.numComps); - }, - usesZeroToOneRange: true + if (this.black) { + c ^= 0xFF; + } + return c; }; - return DeviceCmykCS; -})(); + // This functions returns the code found from the table. + // The start and end parameters set the boundaries for searching the table. + // The limit parameter is optional. Function returns an array with three + // values. The first array element indicates whether a valid code is being + // returned. The second array element is the actual code. The third array + // element indicates whether EOF was reached. + CCITTFaxStream.prototype.findTableCode = + function ccittFaxStreamFindTableCode(start, end, table, limit) { -// -// CalGrayCS: Based on "PDF Reference, Sixth Ed", p.245 -// -var CalGrayCS = (function CalGrayCSClosure() { - function CalGrayCS(whitePoint, blackPoint, gamma) { - this.name = 'CalGray'; - this.numComps = 1; - this.defaultColor = new Float32Array([0]); - - if (!whitePoint) { - error('WhitePoint missing - required for color space CalGray'); - } - blackPoint = blackPoint || [0, 0, 0]; - gamma = gamma || 1; - - // Translate arguments to spec variables. - this.XW = whitePoint[0]; - this.YW = whitePoint[1]; - this.ZW = whitePoint[2]; - - this.XB = blackPoint[0]; - this.YB = blackPoint[1]; - this.ZB = blackPoint[2]; - - this.G = gamma; - - // Validate variables as per spec. - if (this.XW < 0 || this.ZW < 0 || this.YW !== 1) { - error('Invalid WhitePoint components for ' + this.name + - ', no fallback available'); - } - - if (this.XB < 0 || this.YB < 0 || this.ZB < 0) { - info('Invalid BlackPoint for ' + this.name + ', falling back to default'); - this.XB = this.YB = this.ZB = 0; - } - - if (this.XB !== 0 || this.YB !== 0 || this.ZB !== 0) { - warn(this.name + ', BlackPoint: XB: ' + this.XB + ', YB: ' + this.YB + - ', ZB: ' + this.ZB + ', only default values are supported.'); - } - - if (this.G < 1) { - info('Invalid Gamma: ' + this.G + ' for ' + this.name + - ', falling back to default'); - this.G = 1; - } - } - - function convertToRgb(cs, src, srcOffset, dest, destOffset, scale) { - // A represents a gray component of a calibrated gray space. - // A <---> AG in the spec - var A = src[srcOffset] * scale; - var AG = Math.pow(A, cs.G); - - // Computes L as per spec. ( = cs.YW * AG ) - // Except if other than default BlackPoint values are used. - var L = cs.YW * AG; - // http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html, Ch 4. - // Convert values to rgb range [0, 255]. - var val = Math.max(295.8 * Math.pow(L, 0.333333333333333333) - 40.8, 0) | 0; - dest[destOffset] = val; - dest[destOffset + 1] = val; - dest[destOffset + 2] = val; - } - - CalGrayCS.prototype = { - getRgb: ColorSpace.prototype.getRgb, - getRgbItem: function CalGrayCS_getRgbItem(src, srcOffset, - dest, destOffset) { - convertToRgb(this, src, srcOffset, dest, destOffset, 1); - }, - getRgbBuffer: function CalGrayCS_getRgbBuffer(src, srcOffset, count, - dest, destOffset, bits, - alpha01) { - var scale = 1 / ((1 << bits) - 1); - - for (var i = 0; i < count; ++i) { - convertToRgb(this, src, srcOffset, dest, destOffset, scale); - srcOffset += 1; - destOffset += 3 + alpha01; + var limitValue = limit || 0; + for (var i = start; i <= end; ++i) { + var code = this.lookBits(i); + if (code === EOF) { + return [true, 1, false]; } - }, - getOutputLength: function CalGrayCS_getOutputLength(inputLength, alpha01) { - return inputLength * (3 + alpha01); - }, - isPassthrough: ColorSpace.prototype.isPassthrough, - fillRgb: ColorSpace.prototype.fillRgb, - isDefaultDecode: function CalGrayCS_isDefaultDecode(decodeMap) { - return ColorSpace.isDefaultDecode(decodeMap, this.numComps); - }, - usesZeroToOneRange: true - }; - return CalGrayCS; -})(); - -// -// CalRGBCS: Based on "PDF Reference, Sixth Ed", p.247 -// -var CalRGBCS = (function CalRGBCSClosure() { - - // See http://www.brucelindbloom.com/index.html?Eqn_ChromAdapt.html for these - // matrices. - var BRADFORD_SCALE_MATRIX = new Float32Array([ - 0.8951, 0.2664, -0.1614, - -0.7502, 1.7135, 0.0367, - 0.0389, -0.0685, 1.0296]); - - var BRADFORD_SCALE_INVERSE_MATRIX = new Float32Array([ - 0.9869929, -0.1470543, 0.1599627, - 0.4323053, 0.5183603, 0.0492912, - -0.0085287, 0.0400428, 0.9684867]); - - // See http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html. - var SRGB_D65_XYZ_TO_RGB_MATRIX = new Float32Array([ - 3.2404542, -1.5371385, -0.4985314, - -0.9692660, 1.8760108, 0.0415560, - 0.0556434, -0.2040259, 1.0572252]); - - var FLAT_WHITEPOINT_MATRIX = new Float32Array([1, 1, 1]); - - var tempNormalizeMatrix = new Float32Array(3); - var tempConvertMatrix1 = new Float32Array(3); - var tempConvertMatrix2 = new Float32Array(3); - - var DECODE_L_CONSTANT = Math.pow(((8 + 16) / 116), 3) / 8.0; - - function CalRGBCS(whitePoint, blackPoint, gamma, matrix) { - this.name = 'CalRGB'; - this.numComps = 3; - this.defaultColor = new Float32Array(3); - - if (!whitePoint) { - error('WhitePoint missing - required for color space CalRGB'); - } - blackPoint = blackPoint || new Float32Array(3); - gamma = gamma || new Float32Array([1, 1, 1]); - matrix = matrix || new Float32Array([1, 0, 0, 0, 1, 0, 0, 0, 1]); - - // Translate arguments to spec variables. - var XW = whitePoint[0]; - var YW = whitePoint[1]; - var ZW = whitePoint[2]; - this.whitePoint = whitePoint; - - var XB = blackPoint[0]; - var YB = blackPoint[1]; - var ZB = blackPoint[2]; - this.blackPoint = blackPoint; - - this.GR = gamma[0]; - this.GG = gamma[1]; - this.GB = gamma[2]; - - this.MXA = matrix[0]; - this.MYA = matrix[1]; - this.MZA = matrix[2]; - this.MXB = matrix[3]; - this.MYB = matrix[4]; - this.MZB = matrix[5]; - this.MXC = matrix[6]; - this.MYC = matrix[7]; - this.MZC = matrix[8]; - - // Validate variables as per spec. - if (XW < 0 || ZW < 0 || YW !== 1) { - error('Invalid WhitePoint components for ' + this.name + - ', no fallback available'); - } - - if (XB < 0 || YB < 0 || ZB < 0) { - info('Invalid BlackPoint for ' + this.name + ' [' + XB + ', ' + YB + - ', ' + ZB + '], falling back to default'); - this.blackPoint = new Float32Array(3); - } - - if (this.GR < 0 || this.GG < 0 || this.GB < 0) { - info('Invalid Gamma [' + this.GR + ', ' + this.GG + ', ' + this.GB + - '] for ' + this.name + ', falling back to default'); - this.GR = this.GG = this.GB = 1; - } - - if (this.MXA < 0 || this.MYA < 0 || this.MZA < 0 || - this.MXB < 0 || this.MYB < 0 || this.MZB < 0 || - this.MXC < 0 || this.MYC < 0 || this.MZC < 0) { - info('Invalid Matrix for ' + this.name + ' [' + - this.MXA + ', ' + this.MYA + ', ' + this.MZA + - this.MXB + ', ' + this.MYB + ', ' + this.MZB + - this.MXC + ', ' + this.MYC + ', ' + this.MZC + - '], falling back to default'); - this.MXA = this.MYB = this.MZC = 1; - this.MXB = this.MYA = this.MZA = this.MXC = this.MYC = this.MZB = 0; - } - } - - function matrixProduct(a, b, result) { - result[0] = a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; - result[1] = a[3] * b[0] + a[4] * b[1] + a[5] * b[2]; - result[2] = a[6] * b[0] + a[7] * b[1] + a[8] * b[2]; - } - - function convertToFlat(sourceWhitePoint, LMS, result) { - result[0] = LMS[0] * 1 / sourceWhitePoint[0]; - result[1] = LMS[1] * 1 / sourceWhitePoint[1]; - result[2] = LMS[2] * 1 / sourceWhitePoint[2]; - } - - function convertToD65(sourceWhitePoint, LMS, result) { - var D65X = 0.95047; - var D65Y = 1; - var D65Z = 1.08883; - - result[0] = LMS[0] * D65X / sourceWhitePoint[0]; - result[1] = LMS[1] * D65Y / sourceWhitePoint[1]; - result[2] = LMS[2] * D65Z / sourceWhitePoint[2]; - } - - function sRGBTransferFunction(color) { - // See http://en.wikipedia.org/wiki/SRGB. - if (color <= 0.0031308){ - return adjustToRange(0, 1, 12.92 * color); - } - - return adjustToRange(0, 1, (1 + 0.055) * Math.pow(color, 1 / 2.4) - 0.055); - } - - function adjustToRange(min, max, value) { - return Math.max(min, Math.min(max, value)); - } - - function decodeL(L) { - if (L < 0) { - return -decodeL(-L); - } - - if (L > 8.0) { - return Math.pow(((L + 16) / 116), 3); - } - - return L * DECODE_L_CONSTANT; - } - - function compensateBlackPoint(sourceBlackPoint, XYZ_Flat, result) { - - // In case the blackPoint is already the default blackPoint then there is - // no need to do compensation. - if (sourceBlackPoint[0] === 0 && - sourceBlackPoint[1] === 0 && - sourceBlackPoint[2] === 0) { - result[0] = XYZ_Flat[0]; - result[1] = XYZ_Flat[1]; - result[2] = XYZ_Flat[2]; - return; - } - - // For the blackPoint calculation details, please see - // http://www.adobe.com/content/dam/Adobe/en/devnet/photoshop/sdk/ - // AdobeBPC.pdf. - // The destination blackPoint is the default blackPoint [0, 0, 0]. - var zeroDecodeL = decodeL(0); - - var X_DST = zeroDecodeL; - var X_SRC = decodeL(sourceBlackPoint[0]); - - var Y_DST = zeroDecodeL; - var Y_SRC = decodeL(sourceBlackPoint[1]); - - var Z_DST = zeroDecodeL; - var Z_SRC = decodeL(sourceBlackPoint[2]); - - var X_Scale = (1 - X_DST) / (1 - X_SRC); - var X_Offset = 1 - X_Scale; - - var Y_Scale = (1 - Y_DST) / (1 - Y_SRC); - var Y_Offset = 1 - Y_Scale; - - var Z_Scale = (1 - Z_DST) / (1 - Z_SRC); - var Z_Offset = 1 - Z_Scale; - - result[0] = XYZ_Flat[0] * X_Scale + X_Offset; - result[1] = XYZ_Flat[1] * Y_Scale + Y_Offset; - result[2] = XYZ_Flat[2] * Z_Scale + Z_Offset; - } - - function normalizeWhitePointToFlat(sourceWhitePoint, XYZ_In, result) { - - // In case the whitePoint is already flat then there is no need to do - // normalization. - if (sourceWhitePoint[0] === 1 && sourceWhitePoint[2] === 1) { - result[0] = XYZ_In[0]; - result[1] = XYZ_In[1]; - result[2] = XYZ_In[2]; - return; - } - - var LMS = result; - matrixProduct(BRADFORD_SCALE_MATRIX, XYZ_In, LMS); - - var LMS_Flat = tempNormalizeMatrix; - convertToFlat(sourceWhitePoint, LMS, LMS_Flat); - - matrixProduct(BRADFORD_SCALE_INVERSE_MATRIX, LMS_Flat, result); - } - - function normalizeWhitePointToD65(sourceWhitePoint, XYZ_In, result) { - - var LMS = result; - matrixProduct(BRADFORD_SCALE_MATRIX, XYZ_In, LMS); - - var LMS_D65 = tempNormalizeMatrix; - convertToD65(sourceWhitePoint, LMS, LMS_D65); - - matrixProduct(BRADFORD_SCALE_INVERSE_MATRIX, LMS_D65, result); - } - - function convertToRgb(cs, src, srcOffset, dest, destOffset, scale) { - // A, B and C represent a red, green and blue components of a calibrated - // rgb space. - var A = adjustToRange(0, 1, src[srcOffset] * scale); - var B = adjustToRange(0, 1, src[srcOffset + 1] * scale); - var C = adjustToRange(0, 1, src[srcOffset + 2] * scale); - - // A <---> AGR in the spec - // B <---> BGG in the spec - // C <---> CGB in the spec - var AGR = Math.pow(A, cs.GR); - var BGG = Math.pow(B, cs.GG); - var CGB = Math.pow(C, cs.GB); - - // Computes intermediate variables L, M, N as per spec. - // To decode X, Y, Z values map L, M, N directly to them. - var X = cs.MXA * AGR + cs.MXB * BGG + cs.MXC * CGB; - var Y = cs.MYA * AGR + cs.MYB * BGG + cs.MYC * CGB; - var Z = cs.MZA * AGR + cs.MZB * BGG + cs.MZC * CGB; - - // The following calculations are based on this document: - // http://www.adobe.com/content/dam/Adobe/en/devnet/photoshop/sdk/ - // AdobeBPC.pdf. - var XYZ = tempConvertMatrix1; - XYZ[0] = X; - XYZ[1] = Y; - XYZ[2] = Z; - var XYZ_Flat = tempConvertMatrix2; - - normalizeWhitePointToFlat(cs.whitePoint, XYZ, XYZ_Flat); - - var XYZ_Black = tempConvertMatrix1; - compensateBlackPoint(cs.blackPoint, XYZ_Flat, XYZ_Black); - - var XYZ_D65 = tempConvertMatrix2; - normalizeWhitePointToD65(FLAT_WHITEPOINT_MATRIX, XYZ_Black, XYZ_D65); - - var SRGB = tempConvertMatrix1; - matrixProduct(SRGB_D65_XYZ_TO_RGB_MATRIX, XYZ_D65, SRGB); - - var sR = sRGBTransferFunction(SRGB[0]); - var sG = sRGBTransferFunction(SRGB[1]); - var sB = sRGBTransferFunction(SRGB[2]); - - // Convert the values to rgb range [0, 255]. - dest[destOffset] = Math.round(sR * 255); - dest[destOffset + 1] = Math.round(sG * 255); - dest[destOffset + 2] = Math.round(sB * 255); - } - - CalRGBCS.prototype = { - getRgb: function CalRGBCS_getRgb(src, srcOffset) { - var rgb = new Uint8Array(3); - this.getRgbItem(src, srcOffset, rgb, 0); - return rgb; - }, - getRgbItem: function CalRGBCS_getRgbItem(src, srcOffset, - dest, destOffset) { - convertToRgb(this, src, srcOffset, dest, destOffset, 1); - }, - getRgbBuffer: function CalRGBCS_getRgbBuffer(src, srcOffset, count, - dest, destOffset, bits, - alpha01) { - var scale = 1 / ((1 << bits) - 1); - - for (var i = 0; i < count; ++i) { - convertToRgb(this, src, srcOffset, dest, destOffset, scale); - srcOffset += 3; - destOffset += 3 + alpha01; + if (i < end) { + code <<= end - i; } - }, - getOutputLength: function CalRGBCS_getOutputLength(inputLength, alpha01) { - return (inputLength * (3 + alpha01) / 3) | 0; - }, - isPassthrough: ColorSpace.prototype.isPassthrough, - fillRgb: ColorSpace.prototype.fillRgb, - isDefaultDecode: function CalRGBCS_isDefaultDecode(decodeMap) { - return ColorSpace.isDefaultDecode(decodeMap, this.numComps); - }, - usesZeroToOneRange: true + if (!limitValue || code >= limitValue) { + var p = table[code - limitValue]; + if (p[0] === i) { + this.eatBits(i); + return [true, p[1], true]; + } + } + } + return [false, 0, false]; }; - return CalRGBCS; -})(); -// -// LabCS: Based on "PDF Reference, Sixth Ed", p.250 -// -var LabCS = (function LabCSClosure() { - function LabCS(whitePoint, blackPoint, range) { - this.name = 'Lab'; - this.numComps = 3; - this.defaultColor = new Float32Array([0, 0, 0]); + CCITTFaxStream.prototype.getTwoDimCode = + function ccittFaxStreamGetTwoDimCode() { - if (!whitePoint) { - error('WhitePoint missing - required for color space Lab'); - } - blackPoint = blackPoint || [0, 0, 0]; - range = range || [-100, 100, -100, 100]; - - // Translate args to spec variables - this.XW = whitePoint[0]; - this.YW = whitePoint[1]; - this.ZW = whitePoint[2]; - this.amin = range[0]; - this.amax = range[1]; - this.bmin = range[2]; - this.bmax = range[3]; - - // These are here just for completeness - the spec doesn't offer any - // formulas that use BlackPoint in Lab - this.XB = blackPoint[0]; - this.YB = blackPoint[1]; - this.ZB = blackPoint[2]; - - // Validate vars as per spec - if (this.XW < 0 || this.ZW < 0 || this.YW !== 1) { - error('Invalid WhitePoint components, no fallback available'); - } - - if (this.XB < 0 || this.YB < 0 || this.ZB < 0) { - info('Invalid BlackPoint, falling back to default'); - this.XB = this.YB = this.ZB = 0; - } - - if (this.amin > this.amax || this.bmin > this.bmax) { - info('Invalid Range, falling back to defaults'); - this.amin = -100; - this.amax = 100; - this.bmin = -100; - this.bmax = 100; - } - } - - // Function g(x) from spec - function fn_g(x) { - if (x >= 6 / 29) { - return x * x * x; + var code = 0; + var p; + if (this.eoblock) { + code = this.lookBits(7); + p = twoDimTable[code]; + if (p && p[0] > 0) { + this.eatBits(p[0]); + return p[1]; + } } else { - return (108 / 841) * (x - 4 / 29); - } - } - - function decode(value, high1, low2, high2) { - return low2 + (value) * (high2 - low2) / (high1); - } - - // If decoding is needed maxVal should be 2^bits per component - 1. - function convertToRgb(cs, src, srcOffset, maxVal, dest, destOffset) { - // XXX: Lab input is in the range of [0, 100], [amin, amax], [bmin, bmax] - // not the usual [0, 1]. If a command like setFillColor is used the src - // values will already be within the correct range. However, if we are - // converting an image we have to map the values to the correct range given - // above. - // Ls,as,bs <---> L*,a*,b* in the spec - var Ls = src[srcOffset]; - var as = src[srcOffset + 1]; - var bs = src[srcOffset + 2]; - if (maxVal !== false) { - Ls = decode(Ls, maxVal, 0, 100); - as = decode(as, maxVal, cs.amin, cs.amax); - bs = decode(bs, maxVal, cs.bmin, cs.bmax); - } - - // Adjust limits of 'as' and 'bs' - as = as > cs.amax ? cs.amax : as < cs.amin ? cs.amin : as; - bs = bs > cs.bmax ? cs.bmax : bs < cs.bmin ? cs.bmin : bs; - - // Computes intermediate variables X,Y,Z as per spec - var M = (Ls + 16) / 116; - var L = M + (as / 500); - var N = M - (bs / 200); - - var X = cs.XW * fn_g(L); - var Y = cs.YW * fn_g(M); - var Z = cs.ZW * fn_g(N); - - var r, g, b; - // Using different conversions for D50 and D65 white points, - // per http://www.color.org/srgb.pdf - if (cs.ZW < 1) { - // Assuming D50 (X=0.9642, Y=1.00, Z=0.8249) - r = X * 3.1339 + Y * -1.6170 + Z * -0.4906; - g = X * -0.9785 + Y * 1.9160 + Z * 0.0333; - b = X * 0.0720 + Y * -0.2290 + Z * 1.4057; - } else { - // Assuming D65 (X=0.9505, Y=1.00, Z=1.0888) - r = X * 3.2406 + Y * -1.5372 + Z * -0.4986; - g = X * -0.9689 + Y * 1.8758 + Z * 0.0415; - b = X * 0.0557 + Y * -0.2040 + Z * 1.0570; - } - // clamp color values to [0,1] range then convert to [0,255] range. - dest[destOffset] = r <= 0 ? 0 : r >= 1 ? 255 : Math.sqrt(r) * 255 | 0; - dest[destOffset + 1] = g <= 0 ? 0 : g >= 1 ? 255 : Math.sqrt(g) * 255 | 0; - dest[destOffset + 2] = b <= 0 ? 0 : b >= 1 ? 255 : Math.sqrt(b) * 255 | 0; - } - - LabCS.prototype = { - getRgb: ColorSpace.prototype.getRgb, - getRgbItem: function LabCS_getRgbItem(src, srcOffset, dest, destOffset) { - convertToRgb(this, src, srcOffset, false, dest, destOffset); - }, - getRgbBuffer: function LabCS_getRgbBuffer(src, srcOffset, count, - dest, destOffset, bits, - alpha01) { - var maxVal = (1 << bits) - 1; - for (var i = 0; i < count; i++) { - convertToRgb(this, src, srcOffset, maxVal, dest, destOffset); - srcOffset += 3; - destOffset += 3 + alpha01; + var result = this.findTableCode(1, 7, twoDimTable); + if (result[0] && result[2]) { + return result[1]; } - }, - getOutputLength: function LabCS_getOutputLength(inputLength, alpha01) { - return (inputLength * (3 + alpha01) / 3) | 0; - }, - isPassthrough: ColorSpace.prototype.isPassthrough, - fillRgb: ColorSpace.prototype.fillRgb, - isDefaultDecode: function LabCS_isDefaultDecode(decodeMap) { - // XXX: Decoding is handled with the lab conversion because of the strange - // ranges that are used. - return true; - }, - usesZeroToOneRange: false + } + info('Bad two dim code'); + return EOF; }; - return LabCS; + + CCITTFaxStream.prototype.getWhiteCode = + function ccittFaxStreamGetWhiteCode() { + + var code = 0; + var p; + if (this.eoblock) { + code = this.lookBits(12); + if (code === EOF) { + return 1; + } + + if ((code >> 5) === 0) { + p = whiteTable1[code]; + } else { + p = whiteTable2[code >> 3]; + } + + if (p[0] > 0) { + this.eatBits(p[0]); + return p[1]; + } + } else { + var result = this.findTableCode(1, 9, whiteTable2); + if (result[0]) { + return result[1]; + } + + result = this.findTableCode(11, 12, whiteTable1); + if (result[0]) { + return result[1]; + } + } + info('bad white code'); + this.eatBits(1); + return 1; + }; + + CCITTFaxStream.prototype.getBlackCode = + function ccittFaxStreamGetBlackCode() { + + var code, p; + if (this.eoblock) { + code = this.lookBits(13); + if (code === EOF) { + return 1; + } + if ((code >> 7) === 0) { + p = blackTable1[code]; + } else if ((code >> 9) === 0 && (code >> 7) !== 0) { + p = blackTable2[(code >> 1) - 64]; + } else { + p = blackTable3[code >> 7]; + } + + if (p[0] > 0) { + this.eatBits(p[0]); + return p[1]; + } + } else { + var result = this.findTableCode(2, 6, blackTable3); + if (result[0]) { + return result[1]; + } + + result = this.findTableCode(7, 12, blackTable2, 64); + if (result[0]) { + return result[1]; + } + + result = this.findTableCode(10, 13, blackTable1); + if (result[0]) { + return result[1]; + } + } + info('bad black code'); + this.eatBits(1); + return 1; + }; + + CCITTFaxStream.prototype.lookBits = function CCITTFaxStream_lookBits(n) { + var c; + while (this.inputBits < n) { + if ((c = this.str.getByte()) === -1) { + if (this.inputBits === 0) { + return EOF; + } + return ((this.inputBuf << (n - this.inputBits)) & + (0xFFFF >> (16 - n))); + } + this.inputBuf = (this.inputBuf << 8) + c; + this.inputBits += 8; + } + return (this.inputBuf >> (this.inputBits - n)) & (0xFFFF >> (16 - n)); + }; + + CCITTFaxStream.prototype.eatBits = function CCITTFaxStream_eatBits(n) { + if ((this.inputBits -= n) < 0) { + this.inputBits = 0; + } + }; + + return CCITTFaxStream; })(); +var LZWStream = (function LZWStreamClosure() { + function LZWStream(str, maybeLength, earlyChange) { + this.str = str; + this.dict = str.dict; + this.cachedData = 0; + this.bitsCached = 0; + + var maxLzwDictionarySize = 4096; + var lzwState = { + earlyChange: earlyChange, + codeLength: 9, + nextCode: 258, + dictionaryValues: new Uint8Array(maxLzwDictionarySize), + dictionaryLengths: new Uint16Array(maxLzwDictionarySize), + dictionaryPrevCodes: new Uint16Array(maxLzwDictionarySize), + currentSequence: new Uint8Array(maxLzwDictionarySize), + currentSequenceLength: 0 + }; + for (var i = 0; i < 256; ++i) { + lzwState.dictionaryValues[i] = i; + lzwState.dictionaryLengths[i] = 1; + } + this.lzwState = lzwState; + + DecodeStream.call(this, maybeLength); + } + + LZWStream.prototype = Object.create(DecodeStream.prototype); + + LZWStream.prototype.readBits = function LZWStream_readBits(n) { + var bitsCached = this.bitsCached; + var cachedData = this.cachedData; + while (bitsCached < n) { + var c = this.str.getByte(); + if (c === -1) { + this.eof = true; + return null; + } + cachedData = (cachedData << 8) | c; + bitsCached += 8; + } + this.bitsCached = (bitsCached -= n); + this.cachedData = cachedData; + this.lastCode = null; + return (cachedData >>> bitsCached) & ((1 << n) - 1); + }; + + LZWStream.prototype.readBlock = function LZWStream_readBlock() { + var blockSize = 512; + var estimatedDecodedSize = blockSize * 2, decodedSizeDelta = blockSize; + var i, j, q; + + var lzwState = this.lzwState; + if (!lzwState) { + return; // eof was found + } + + var earlyChange = lzwState.earlyChange; + var nextCode = lzwState.nextCode; + var dictionaryValues = lzwState.dictionaryValues; + var dictionaryLengths = lzwState.dictionaryLengths; + var dictionaryPrevCodes = lzwState.dictionaryPrevCodes; + var codeLength = lzwState.codeLength; + var prevCode = lzwState.prevCode; + var currentSequence = lzwState.currentSequence; + var currentSequenceLength = lzwState.currentSequenceLength; + + var decodedLength = 0; + var currentBufferLength = this.bufferLength; + var buffer = this.ensureBuffer(this.bufferLength + estimatedDecodedSize); + + for (i = 0; i < blockSize; i++) { + var code = this.readBits(codeLength); + var hasPrev = currentSequenceLength > 0; + if (code < 256) { + currentSequence[0] = code; + currentSequenceLength = 1; + } else if (code >= 258) { + if (code < nextCode) { + currentSequenceLength = dictionaryLengths[code]; + for (j = currentSequenceLength - 1, q = code; j >= 0; j--) { + currentSequence[j] = dictionaryValues[q]; + q = dictionaryPrevCodes[q]; + } + } else { + currentSequence[currentSequenceLength++] = currentSequence[0]; + } + } else if (code === 256) { + codeLength = 9; + nextCode = 258; + currentSequenceLength = 0; + continue; + } else { + this.eof = true; + delete this.lzwState; + break; + } + + if (hasPrev) { + dictionaryPrevCodes[nextCode] = prevCode; + dictionaryLengths[nextCode] = dictionaryLengths[prevCode] + 1; + dictionaryValues[nextCode] = currentSequence[0]; + nextCode++; + codeLength = (nextCode + earlyChange) & (nextCode + earlyChange - 1) ? + codeLength : Math.min(Math.log(nextCode + earlyChange) / + 0.6931471805599453 + 1, 12) | 0; + } + prevCode = code; + + decodedLength += currentSequenceLength; + if (estimatedDecodedSize < decodedLength) { + do { + estimatedDecodedSize += decodedSizeDelta; + } while (estimatedDecodedSize < decodedLength); + buffer = this.ensureBuffer(this.bufferLength + estimatedDecodedSize); + } + for (j = 0; j < currentSequenceLength; j++) { + buffer[currentBufferLength++] = currentSequence[j]; + } + } + lzwState.nextCode = nextCode; + lzwState.codeLength = codeLength; + lzwState.prevCode = prevCode; + lzwState.currentSequenceLength = currentSequenceLength; + + this.bufferLength = currentBufferLength; + }; + + return LZWStream; +})(); + +var NullStream = (function NullStreamClosure() { + function NullStream() { + Stream.call(this, new Uint8Array(0)); + } + + NullStream.prototype = Stream.prototype; + + return NullStream; +})(); + +// TODO refactor to remove dependency on parser.js +function _setCoreParser(coreParser_) { + coreParser = coreParser_; + EOF = coreParser_.EOF; + Lexer = coreParser_.Lexer; +} +exports._setCoreParser = _setCoreParser; + +// TODO refactor to remove dependency on colorspace.js +function _setCoreColorSpace(coreColorSpace_) { + coreColorSpace = coreColorSpace_; + ColorSpace = coreColorSpace_.ColorSpace; +} +exports._setCoreColorSpace = _setCoreColorSpace; + +exports.Ascii85Stream = Ascii85Stream; +exports.AsciiHexStream = AsciiHexStream; +exports.CCITTFaxStream = CCITTFaxStream; +exports.DecryptStream = DecryptStream; +exports.DecodeStream = DecodeStream; +exports.FlateStream = FlateStream; +exports.Jbig2Stream = Jbig2Stream; +exports.JpegStream = JpegStream; +exports.JpxStream = JpxStream; +exports.NullStream = NullStream; +exports.PredictorStream = PredictorStream; +exports.RunLengthStream = RunLengthStream; +exports.Stream = Stream; +exports.StreamsSequenceStream = StreamsSequenceStream; +exports.StringStream = StringStream; +exports.LZWStream = LZWStream; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreCrypto = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreStream); + } +}(this, function (exports, sharedUtil, corePrimitives, coreStream) { + +var PasswordException = sharedUtil.PasswordException; +var PasswordResponses = sharedUtil.PasswordResponses; +var bytesToString = sharedUtil.bytesToString; +var error = sharedUtil.error; +var isInt = sharedUtil.isInt; +var stringToBytes = sharedUtil.stringToBytes; +var utf8StringToString = sharedUtil.utf8StringToString; +var warn = sharedUtil.warn; +var Name = corePrimitives.Name; +var isName = corePrimitives.isName; +var DecryptStream = coreStream.DecryptStream; var ARCFourCipher = (function ARCFourCipherClosure() { function ARCFourCipher(key) { @@ -9495,3662 +19419,1859 @@ var CipherTransformFactory = (function CipherTransformFactoryClosure() { return CipherTransformFactory; })(); +exports.AES128Cipher = AES128Cipher; +exports.AES256Cipher = AES256Cipher; +exports.ARCFourCipher = ARCFourCipher; +exports.CipherTransformFactory = CipherTransformFactory; +exports.PDF17 = PDF17; +exports.PDF20 = PDF20; +exports.calculateMD5 = calculateMD5; +exports.calculateSHA256 = calculateSHA256; +exports.calculateSHA384 = calculateSHA384; +exports.calculateSHA512 = calculateSHA512; +})); -var ShadingType = { - FUNCTION_BASED: 1, - AXIAL: 2, - RADIAL: 3, - FREE_FORM_MESH: 4, - LATTICE_FORM_MESH: 5, - COONS_PATCH_MESH: 6, - TENSOR_PATCH_MESH: 7 -}; +(function (root, factory) { + { + factory((root.pdfjsCoreFontRenderer = {}), root.pdfjsSharedUtil, + root.pdfjsCoreStream, root.pdfjsCoreGlyphList); + } +}(this, function (exports, sharedUtil, coreStream, coreGlyphList) { -var Pattern = (function PatternClosure() { - // Constructor should define this.getPattern - function Pattern() { - error('should not call Pattern constructor'); +var Util = sharedUtil.Util; +var bytesToString = sharedUtil.bytesToString; +var error = sharedUtil.error; +var Stream = coreStream.Stream; +var GlyphsUnicode = coreGlyphList.GlyphsUnicode; + +var coreFonts; // see _setCoreFonts below +var CFFParser; // = coreFonts.CFFParser; +var Encodings; // = coreFonts.Encodings; + +var FontRendererFactory = (function FontRendererFactoryClosure() { + function getLong(data, offset) { + return (data[offset] << 24) | (data[offset + 1] << 16) | + (data[offset + 2] << 8) | data[offset + 3]; } - Pattern.prototype = { - // Input: current Canvas context - // Output: the appropriate fillStyle or strokeStyle - getPattern: function Pattern_getPattern(ctx) { - error('Should not call Pattern.getStyle: ' + ctx); - } - }; - - Pattern.parseShading = function Pattern_parseShading(shading, matrix, xref, - res, handler) { - - var dict = isStream(shading) ? shading.dict : shading; - var type = dict.get('ShadingType'); - - try { - switch (type) { - case ShadingType.AXIAL: - case ShadingType.RADIAL: - // Both radial and axial shadings are handled by RadialAxial shading. - return new Shadings.RadialAxial(dict, matrix, xref, res); - case ShadingType.FREE_FORM_MESH: - case ShadingType.LATTICE_FORM_MESH: - case ShadingType.COONS_PATCH_MESH: - case ShadingType.TENSOR_PATCH_MESH: - return new Shadings.Mesh(shading, matrix, xref, res); - default: - throw new Error('Unsupported ShadingType: ' + type); - } - } catch (ex) { - if (ex instanceof MissingDataException) { - throw ex; - } - handler.send('UnsupportedFeature', - {featureId: UNSUPPORTED_FEATURES.shadingPattern}); - warn(ex); - return new Shadings.Dummy(); - } - }; - return Pattern; -})(); - -var Shadings = {}; - -// A small number to offset the first/last color stops so we can insert ones to -// support extend. Number.MIN_VALUE appears to be too small and breaks the -// extend. 1e-7 works in FF but chrome seems to use an even smaller sized number -// internally so we have to go bigger. -Shadings.SMALL_NUMBER = 1e-2; - -// Radial and axial shading have very similar implementations -// If needed, the implementations can be broken into two classes -Shadings.RadialAxial = (function RadialAxialClosure() { - function RadialAxial(dict, matrix, xref, res) { - this.matrix = matrix; - this.coordsArr = dict.get('Coords'); - this.shadingType = dict.get('ShadingType'); - this.type = 'Pattern'; - var cs = dict.get('ColorSpace', 'CS'); - cs = ColorSpace.parse(cs, xref, res); - this.cs = cs; - - var t0 = 0.0, t1 = 1.0; - if (dict.has('Domain')) { - var domainArr = dict.get('Domain'); - t0 = domainArr[0]; - t1 = domainArr[1]; - } - - var extendStart = false, extendEnd = false; - if (dict.has('Extend')) { - var extendArr = dict.get('Extend'); - extendStart = extendArr[0]; - extendEnd = extendArr[1]; - } - - if (this.shadingType === ShadingType.RADIAL && - (!extendStart || !extendEnd)) { - // Radial gradient only currently works if either circle is fully within - // the other circle. - var x1 = this.coordsArr[0]; - var y1 = this.coordsArr[1]; - var r1 = this.coordsArr[2]; - var x2 = this.coordsArr[3]; - var y2 = this.coordsArr[4]; - var r2 = this.coordsArr[5]; - var distance = Math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)); - if (r1 <= r2 + distance && - r2 <= r1 + distance) { - warn('Unsupported radial gradient.'); - } - } - - this.extendStart = extendStart; - this.extendEnd = extendEnd; - - var fnObj = dict.get('Function'); - var fn = PDFFunction.parseArray(xref, fnObj); - - // 10 samples seems good enough for now, but probably won't work - // if there are sharp color changes. Ideally, we would implement - // the spec faithfully and add lossless optimizations. - var diff = t1 - t0; - var step = diff / 10; - - var colorStops = this.colorStops = []; - - // Protect against bad domains so we don't end up in an infinte loop below. - if (t0 >= t1 || step <= 0) { - // Acrobat doesn't seem to handle these cases so we'll ignore for - // now. - info('Bad shading domain.'); - return; - } - - var color = new Float32Array(cs.numComps), ratio = new Float32Array(1); - var rgbColor; - for (var i = t0; i <= t1; i += step) { - ratio[0] = i; - fn(ratio, 0, color, 0); - rgbColor = cs.getRgb(color, 0); - var cssColor = Util.makeCssRgb(rgbColor[0], rgbColor[1], rgbColor[2]); - colorStops.push([(i - t0) / diff, cssColor]); - } - - var background = 'transparent'; - if (dict.has('Background')) { - rgbColor = cs.getRgb(dict.get('Background'), 0); - background = Util.makeCssRgb(rgbColor[0], rgbColor[1], rgbColor[2]); - } - - if (!extendStart) { - // Insert a color stop at the front and offset the first real color stop - // so it doesn't conflict with the one we insert. - colorStops.unshift([0, background]); - colorStops[1][0] += Shadings.SMALL_NUMBER; - } - if (!extendEnd) { - // Same idea as above in extendStart but for the end. - colorStops[colorStops.length - 1][0] -= Shadings.SMALL_NUMBER; - colorStops.push([1, background]); - } - - this.colorStops = colorStops; + function getUshort(data, offset) { + return (data[offset] << 8) | data[offset + 1]; } - RadialAxial.prototype = { - getIR: function RadialAxial_getIR() { - var coordsArr = this.coordsArr; - var shadingType = this.shadingType; - var type, p0, p1, r0, r1; - if (shadingType === ShadingType.AXIAL) { - p0 = [coordsArr[0], coordsArr[1]]; - p1 = [coordsArr[2], coordsArr[3]]; - r0 = null; - r1 = null; - type = 'axial'; - } else if (shadingType === ShadingType.RADIAL) { - p0 = [coordsArr[0], coordsArr[1]]; - p1 = [coordsArr[3], coordsArr[4]]; - r0 = coordsArr[2]; - r1 = coordsArr[5]; - type = 'radial'; - } else { - error('getPattern type unknown: ' + shadingType); + function parseCmap(data, start, end) { + var offset = (getUshort(data, start + 2) === 1 ? + getLong(data, start + 8) : getLong(data, start + 16)); + var format = getUshort(data, start + offset); + var length, ranges, p, i; + if (format === 4) { + length = getUshort(data, start + offset + 2); + var segCount = getUshort(data, start + offset + 6) >> 1; + p = start + offset + 14; + ranges = []; + for (i = 0; i < segCount; i++, p += 2) { + ranges[i] = {end: getUshort(data, p)}; } - - var matrix = this.matrix; - if (matrix) { - p0 = Util.applyTransform(p0, matrix); - p1 = Util.applyTransform(p1, matrix); - if (shadingType === ShadingType.RADIAL) { - var scale = Util.singularValueDecompose2dScale(matrix); - r0 *= scale[0]; - r1 *= scale[1]; - } + p += 2; + for (i = 0; i < segCount; i++, p += 2) { + ranges[i].start = getUshort(data, p); } - - return ['RadialAxial', type, this.colorStops, p0, p1, r0, r1]; - } - }; - - return RadialAxial; -})(); - -// All mesh shading. For now, they will be presented as set of the triangles -// to be drawn on the canvas and rgb color for each vertex. -Shadings.Mesh = (function MeshClosure() { - function MeshStreamReader(stream, context) { - this.stream = stream; - this.context = context; - this.buffer = 0; - this.bufferLength = 0; - - var numComps = context.numComps; - this.tmpCompsBuf = new Float32Array(numComps); - var csNumComps = context.colorSpace.numComps; - this.tmpCsCompsBuf = context.colorFn ? new Float32Array(csNumComps) : - this.tmpCompsBuf; - } - MeshStreamReader.prototype = { - get hasData() { - if (this.stream.end) { - return this.stream.pos < this.stream.end; + for (i = 0; i < segCount; i++, p += 2) { + ranges[i].idDelta = getUshort(data, p); } - if (this.bufferLength > 0) { - return true; - } - var nextByte = this.stream.getByte(); - if (nextByte < 0) { - return false; - } - this.buffer = nextByte; - this.bufferLength = 8; - return true; - }, - readBits: function MeshStreamReader_readBits(n) { - var buffer = this.buffer; - var bufferLength = this.bufferLength; - if (n === 32) { - if (bufferLength === 0) { - return ((this.stream.getByte() << 24) | - (this.stream.getByte() << 16) | (this.stream.getByte() << 8) | - this.stream.getByte()) >>> 0; - } - buffer = (buffer << 24) | (this.stream.getByte() << 16) | - (this.stream.getByte() << 8) | this.stream.getByte(); - var nextByte = this.stream.getByte(); - this.buffer = nextByte & ((1 << bufferLength) - 1); - return ((buffer << (8 - bufferLength)) | - ((nextByte & 0xFF) >> bufferLength)) >>> 0; - } - if (n === 8 && bufferLength === 0) { - return this.stream.getByte(); - } - while (bufferLength < n) { - buffer = (buffer << 8) | this.stream.getByte(); - bufferLength += 8; - } - bufferLength -= n; - this.bufferLength = bufferLength; - this.buffer = buffer & ((1 << bufferLength) - 1); - return buffer >> bufferLength; - }, - align: function MeshStreamReader_align() { - this.buffer = 0; - this.bufferLength = 0; - }, - readFlag: function MeshStreamReader_readFlag() { - return this.readBits(this.context.bitsPerFlag); - }, - readCoordinate: function MeshStreamReader_readCoordinate() { - var bitsPerCoordinate = this.context.bitsPerCoordinate; - var xi = this.readBits(bitsPerCoordinate); - var yi = this.readBits(bitsPerCoordinate); - var decode = this.context.decode; - var scale = bitsPerCoordinate < 32 ? 1 / ((1 << bitsPerCoordinate) - 1) : - 2.3283064365386963e-10; // 2 ^ -32 - return [ - xi * scale * (decode[1] - decode[0]) + decode[0], - yi * scale * (decode[3] - decode[2]) + decode[2] - ]; - }, - readComponents: function MeshStreamReader_readComponents() { - var numComps = this.context.numComps; - var bitsPerComponent = this.context.bitsPerComponent; - var scale = bitsPerComponent < 32 ? 1 / ((1 << bitsPerComponent) - 1) : - 2.3283064365386963e-10; // 2 ^ -32 - var decode = this.context.decode; - var components = this.tmpCompsBuf; - for (var i = 0, j = 4; i < numComps; i++, j += 2) { - var ci = this.readBits(bitsPerComponent); - components[i] = ci * scale * (decode[j + 1] - decode[j]) + decode[j]; - } - var color = this.tmpCsCompsBuf; - if (this.context.colorFn) { - this.context.colorFn(components, 0, color, 0); - } - return this.context.colorSpace.getRgb(color, 0); - } - }; - - function decodeType4Shading(mesh, reader) { - var coords = mesh.coords; - var colors = mesh.colors; - var operators = []; - var ps = []; // not maintaining cs since that will match ps - var verticesLeft = 0; // assuming we have all data to start a new triangle - while (reader.hasData) { - var f = reader.readFlag(); - var coord = reader.readCoordinate(); - var color = reader.readComponents(); - if (verticesLeft === 0) { // ignoring flags if we started a triangle - assert(0 <= f && f <= 2, 'Unknown type4 flag'); - switch (f) { - case 0: - verticesLeft = 3; - break; - case 1: - ps.push(ps[ps.length - 2], ps[ps.length - 1]); - verticesLeft = 1; - break; - case 2: - ps.push(ps[ps.length - 3], ps[ps.length - 1]); - verticesLeft = 1; - break; - } - operators.push(f); - } - ps.push(coords.length); - coords.push(coord); - colors.push(color); - verticesLeft--; - - reader.align(); - } - mesh.figures.push({ - type: 'triangles', - coords: new Int32Array(ps), - colors: new Int32Array(ps), - }); - } - - function decodeType5Shading(mesh, reader, verticesPerRow) { - var coords = mesh.coords; - var colors = mesh.colors; - var ps = []; // not maintaining cs since that will match ps - while (reader.hasData) { - var coord = reader.readCoordinate(); - var color = reader.readComponents(); - ps.push(coords.length); - coords.push(coord); - colors.push(color); - } - mesh.figures.push({ - type: 'lattice', - coords: new Int32Array(ps), - colors: new Int32Array(ps), - verticesPerRow: verticesPerRow - }); - } - - var MIN_SPLIT_PATCH_CHUNKS_AMOUNT = 3; - var MAX_SPLIT_PATCH_CHUNKS_AMOUNT = 20; - - var TRIANGLE_DENSITY = 20; // count of triangles per entire mesh bounds - - var getB = (function getBClosure() { - function buildB(count) { - var lut = []; - for (var i = 0; i <= count; i++) { - var t = i / count, t_ = 1 - t; - lut.push(new Float32Array([t_ * t_ * t_, 3 * t * t_ * t_, - 3 * t * t * t_, t * t * t])); - } - return lut; - } - var cache = []; - return function getB(count) { - if (!cache[count]) { - cache[count] = buildB(count); - } - return cache[count]; - }; - })(); - - function buildFigureFromPatch(mesh, index) { - var figure = mesh.figures[index]; - assert(figure.type === 'patch', 'Unexpected patch mesh figure'); - - var coords = mesh.coords, colors = mesh.colors; - var pi = figure.coords; - var ci = figure.colors; - - var figureMinX = Math.min(coords[pi[0]][0], coords[pi[3]][0], - coords[pi[12]][0], coords[pi[15]][0]); - var figureMinY = Math.min(coords[pi[0]][1], coords[pi[3]][1], - coords[pi[12]][1], coords[pi[15]][1]); - var figureMaxX = Math.max(coords[pi[0]][0], coords[pi[3]][0], - coords[pi[12]][0], coords[pi[15]][0]); - var figureMaxY = Math.max(coords[pi[0]][1], coords[pi[3]][1], - coords[pi[12]][1], coords[pi[15]][1]); - var splitXBy = Math.ceil((figureMaxX - figureMinX) * TRIANGLE_DENSITY / - (mesh.bounds[2] - mesh.bounds[0])); - splitXBy = Math.max(MIN_SPLIT_PATCH_CHUNKS_AMOUNT, - Math.min(MAX_SPLIT_PATCH_CHUNKS_AMOUNT, splitXBy)); - var splitYBy = Math.ceil((figureMaxY - figureMinY) * TRIANGLE_DENSITY / - (mesh.bounds[3] - mesh.bounds[1])); - splitYBy = Math.max(MIN_SPLIT_PATCH_CHUNKS_AMOUNT, - Math.min(MAX_SPLIT_PATCH_CHUNKS_AMOUNT, splitYBy)); - - var verticesPerRow = splitXBy + 1; - var figureCoords = new Int32Array((splitYBy + 1) * verticesPerRow); - var figureColors = new Int32Array((splitYBy + 1) * verticesPerRow); - var k = 0; - var cl = new Uint8Array(3), cr = new Uint8Array(3); - var c0 = colors[ci[0]], c1 = colors[ci[1]], - c2 = colors[ci[2]], c3 = colors[ci[3]]; - var bRow = getB(splitYBy), bCol = getB(splitXBy); - for (var row = 0; row <= splitYBy; row++) { - cl[0] = ((c0[0] * (splitYBy - row) + c2[0] * row) / splitYBy) | 0; - cl[1] = ((c0[1] * (splitYBy - row) + c2[1] * row) / splitYBy) | 0; - cl[2] = ((c0[2] * (splitYBy - row) + c2[2] * row) / splitYBy) | 0; - - cr[0] = ((c1[0] * (splitYBy - row) + c3[0] * row) / splitYBy) | 0; - cr[1] = ((c1[1] * (splitYBy - row) + c3[1] * row) / splitYBy) | 0; - cr[2] = ((c1[2] * (splitYBy - row) + c3[2] * row) / splitYBy) | 0; - - for (var col = 0; col <= splitXBy; col++, k++) { - if ((row === 0 || row === splitYBy) && - (col === 0 || col === splitXBy)) { + for (i = 0; i < segCount; i++, p += 2) { + var idOffset = getUshort(data, p); + if (idOffset === 0) { continue; } - var x = 0, y = 0; - var q = 0; - for (var i = 0; i <= 3; i++) { - for (var j = 0; j <= 3; j++, q++) { - var m = bRow[row][i] * bCol[col][j]; - x += coords[pi[q]][0] * m; - y += coords[pi[q]][1] * m; - } + ranges[i].ids = []; + for (var j = 0, jj = ranges[i].end - ranges[i].start + 1; j < jj; j++) { + ranges[i].ids[j] = getUshort(data, p + idOffset); + idOffset += 2; } - figureCoords[k] = coords.length; - coords.push([x, y]); - figureColors[k] = colors.length; - var newColor = new Uint8Array(3); - newColor[0] = ((cl[0] * (splitXBy - col) + cr[0] * col) / splitXBy) | 0; - newColor[1] = ((cl[1] * (splitXBy - col) + cr[1] * col) / splitXBy) | 0; - newColor[2] = ((cl[2] * (splitXBy - col) + cr[2] * col) / splitXBy) | 0; - colors.push(newColor); } + return ranges; + } else if (format === 12) { + length = getLong(data, start + offset + 4); + var groups = getLong(data, start + offset + 12); + p = start + offset + 16; + ranges = []; + for (i = 0; i < groups; i++) { + ranges.push({ + start: getLong(data, p), + end: getLong(data, p + 4), + idDelta: getLong(data, p + 8) - getLong(data, p) + }); + p += 12; + } + return ranges; } - figureCoords[0] = pi[0]; - figureColors[0] = ci[0]; - figureCoords[splitXBy] = pi[3]; - figureColors[splitXBy] = ci[1]; - figureCoords[verticesPerRow * splitYBy] = pi[12]; - figureColors[verticesPerRow * splitYBy] = ci[2]; - figureCoords[verticesPerRow * splitYBy + splitXBy] = pi[15]; - figureColors[verticesPerRow * splitYBy + splitXBy] = ci[3]; + error('not supported cmap: ' + format); + } - mesh.figures[index] = { - type: 'lattice', - coords: figureCoords, - colors: figureColors, - verticesPerRow: verticesPerRow + function parseCff(data, start, end) { + var properties = {}; + var parser = new CFFParser(new Stream(data, start, end - start), + properties); + var cff = parser.parse(); + return { + glyphs: cff.charStrings.objects, + subrs: (cff.topDict.privateDict && cff.topDict.privateDict.subrsIndex && + cff.topDict.privateDict.subrsIndex.objects), + gsubrs: cff.globalSubrIndex && cff.globalSubrIndex.objects }; } - function decodeType6Shading(mesh, reader) { - // A special case of Type 7. The p11, p12, p21, p22 automatically filled - var coords = mesh.coords; - var colors = mesh.colors; - var ps = new Int32Array(16); // p00, p10, ..., p30, p01, ..., p33 - var cs = new Int32Array(4); // c00, c30, c03, c33 - while (reader.hasData) { - var f = reader.readFlag(); - assert(0 <= f && f <= 3, 'Unknown type6 flag'); - var i, ii; - var pi = coords.length; - for (i = 0, ii = (f !== 0 ? 8 : 12); i < ii; i++) { - coords.push(reader.readCoordinate()); - } - var ci = colors.length; - for (i = 0, ii = (f !== 0 ? 2 : 4); i < ii; i++) { - colors.push(reader.readComponents()); - } - var tmp1, tmp2, tmp3, tmp4; - switch (f) { - case 0: - ps[12] = pi + 3; ps[13] = pi + 4; ps[14] = pi + 5; ps[15] = pi + 6; - ps[ 8] = pi + 2; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 7; - ps[ 4] = pi + 1; /* calculated below */ ps[ 7] = pi + 8; - ps[ 0] = pi; ps[ 1] = pi + 11; ps[ 2] = pi + 10; ps[ 3] = pi + 9; - cs[2] = ci + 1; cs[3] = ci + 2; - cs[0] = ci; cs[1] = ci + 3; - break; - case 1: - tmp1 = ps[12]; tmp2 = ps[13]; tmp3 = ps[14]; tmp4 = ps[15]; - ps[12] = tmp4; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; - ps[ 8] = tmp3; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 3; - ps[ 4] = tmp2; /* calculated below */ ps[ 7] = pi + 4; - ps[ 0] = tmp1; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; - tmp1 = cs[2]; tmp2 = cs[3]; - cs[2] = tmp2; cs[3] = ci; - cs[0] = tmp1; cs[1] = ci + 1; - break; - case 2: - tmp1 = ps[15]; - tmp2 = ps[11]; - ps[12] = ps[3]; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; - ps[ 8] = ps[7]; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 3; - ps[ 4] = tmp2; /* calculated below */ ps[ 7] = pi + 4; - ps[ 0] = tmp1; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; - tmp1 = cs[3]; - cs[2] = cs[1]; cs[3] = ci; - cs[0] = tmp1; cs[1] = ci + 1; - break; - case 3: - ps[12] = ps[0]; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; - ps[ 8] = ps[1]; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 3; - ps[ 4] = ps[2]; /* calculated below */ ps[ 7] = pi + 4; - ps[ 0] = ps[3]; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; - cs[2] = cs[0]; cs[3] = ci; - cs[0] = cs[1]; cs[1] = ci + 1; - break; - } - // set p11, p12, p21, p22 - ps[5] = coords.length; - coords.push([ - (-4 * coords[ps[0]][0] - coords[ps[15]][0] + - 6 * (coords[ps[4]][0] + coords[ps[1]][0]) - - 2 * (coords[ps[12]][0] + coords[ps[3]][0]) + - 3 * (coords[ps[13]][0] + coords[ps[7]][0])) / 9, - (-4 * coords[ps[0]][1] - coords[ps[15]][1] + - 6 * (coords[ps[4]][1] + coords[ps[1]][1]) - - 2 * (coords[ps[12]][1] + coords[ps[3]][1]) + - 3 * (coords[ps[13]][1] + coords[ps[7]][1])) / 9 - ]); - ps[6] = coords.length; - coords.push([ - (-4 * coords[ps[3]][0] - coords[ps[12]][0] + - 6 * (coords[ps[2]][0] + coords[ps[7]][0]) - - 2 * (coords[ps[0]][0] + coords[ps[15]][0]) + - 3 * (coords[ps[4]][0] + coords[ps[14]][0])) / 9, - (-4 * coords[ps[3]][1] - coords[ps[12]][1] + - 6 * (coords[ps[2]][1] + coords[ps[7]][1]) - - 2 * (coords[ps[0]][1] + coords[ps[15]][1]) + - 3 * (coords[ps[4]][1] + coords[ps[14]][1])) / 9 - ]); - ps[9] = coords.length; - coords.push([ - (-4 * coords[ps[12]][0] - coords[ps[3]][0] + - 6 * (coords[ps[8]][0] + coords[ps[13]][0]) - - 2 * (coords[ps[0]][0] + coords[ps[15]][0]) + - 3 * (coords[ps[11]][0] + coords[ps[1]][0])) / 9, - (-4 * coords[ps[12]][1] - coords[ps[3]][1] + - 6 * (coords[ps[8]][1] + coords[ps[13]][1]) - - 2 * (coords[ps[0]][1] + coords[ps[15]][1]) + - 3 * (coords[ps[11]][1] + coords[ps[1]][1])) / 9 - ]); - ps[10] = coords.length; - coords.push([ - (-4 * coords[ps[15]][0] - coords[ps[0]][0] + - 6 * (coords[ps[11]][0] + coords[ps[14]][0]) - - 2 * (coords[ps[12]][0] + coords[ps[3]][0]) + - 3 * (coords[ps[2]][0] + coords[ps[8]][0])) / 9, - (-4 * coords[ps[15]][1] - coords[ps[0]][1] + - 6 * (coords[ps[11]][1] + coords[ps[14]][1]) - - 2 * (coords[ps[12]][1] + coords[ps[3]][1]) + - 3 * (coords[ps[2]][1] + coords[ps[8]][1])) / 9 - ]); - mesh.figures.push({ - type: 'patch', - coords: new Int32Array(ps), // making copies of ps and cs - colors: new Int32Array(cs) - }); - } - } - - function decodeType7Shading(mesh, reader) { - var coords = mesh.coords; - var colors = mesh.colors; - var ps = new Int32Array(16); // p00, p10, ..., p30, p01, ..., p33 - var cs = new Int32Array(4); // c00, c30, c03, c33 - while (reader.hasData) { - var f = reader.readFlag(); - assert(0 <= f && f <= 3, 'Unknown type7 flag'); - var i, ii; - var pi = coords.length; - for (i = 0, ii = (f !== 0 ? 12 : 16); i < ii; i++) { - coords.push(reader.readCoordinate()); - } - var ci = colors.length; - for (i = 0, ii = (f !== 0 ? 2 : 4); i < ii; i++) { - colors.push(reader.readComponents()); - } - var tmp1, tmp2, tmp3, tmp4; - switch (f) { - case 0: - ps[12] = pi + 3; ps[13] = pi + 4; ps[14] = pi + 5; ps[15] = pi + 6; - ps[ 8] = pi + 2; ps[ 9] = pi + 13; ps[10] = pi + 14; ps[11] = pi + 7; - ps[ 4] = pi + 1; ps[ 5] = pi + 12; ps[ 6] = pi + 15; ps[ 7] = pi + 8; - ps[ 0] = pi; ps[ 1] = pi + 11; ps[ 2] = pi + 10; ps[ 3] = pi + 9; - cs[2] = ci + 1; cs[3] = ci + 2; - cs[0] = ci; cs[1] = ci + 3; - break; - case 1: - tmp1 = ps[12]; tmp2 = ps[13]; tmp3 = ps[14]; tmp4 = ps[15]; - ps[12] = tmp4; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; - ps[ 8] = tmp3; ps[ 9] = pi + 9; ps[10] = pi + 10; ps[11] = pi + 3; - ps[ 4] = tmp2; ps[ 5] = pi + 8; ps[ 6] = pi + 11; ps[ 7] = pi + 4; - ps[ 0] = tmp1; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; - tmp1 = cs[2]; tmp2 = cs[3]; - cs[2] = tmp2; cs[3] = ci; - cs[0] = tmp1; cs[1] = ci + 1; - break; - case 2: - tmp1 = ps[15]; - tmp2 = ps[11]; - ps[12] = ps[3]; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; - ps[ 8] = ps[7]; ps[ 9] = pi + 9; ps[10] = pi + 10; ps[11] = pi + 3; - ps[ 4] = tmp2; ps[ 5] = pi + 8; ps[ 6] = pi + 11; ps[ 7] = pi + 4; - ps[ 0] = tmp1; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; - tmp1 = cs[3]; - cs[2] = cs[1]; cs[3] = ci; - cs[0] = tmp1; cs[1] = ci + 1; - break; - case 3: - ps[12] = ps[0]; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; - ps[ 8] = ps[1]; ps[ 9] = pi + 9; ps[10] = pi + 10; ps[11] = pi + 3; - ps[ 4] = ps[2]; ps[ 5] = pi + 8; ps[ 6] = pi + 11; ps[ 7] = pi + 4; - ps[ 0] = ps[3]; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; - cs[2] = cs[0]; cs[3] = ci; - cs[0] = cs[1]; cs[1] = ci + 1; - break; - } - mesh.figures.push({ - type: 'patch', - coords: new Int32Array(ps), // making copies of ps and cs - colors: new Int32Array(cs) - }); - } - } - - function updateBounds(mesh) { - var minX = mesh.coords[0][0], minY = mesh.coords[0][1], - maxX = minX, maxY = minY; - for (var i = 1, ii = mesh.coords.length; i < ii; i++) { - var x = mesh.coords[i][0], y = mesh.coords[i][1]; - minX = minX > x ? x : minX; - minY = minY > y ? y : minY; - maxX = maxX < x ? x : maxX; - maxY = maxY < y ? y : maxY; - } - mesh.bounds = [minX, minY, maxX, maxY]; - } - - function packData(mesh) { - var i, ii, j, jj; - - var coords = mesh.coords; - var coordsPacked = new Float32Array(coords.length * 2); - for (i = 0, j = 0, ii = coords.length; i < ii; i++) { - var xy = coords[i]; - coordsPacked[j++] = xy[0]; - coordsPacked[j++] = xy[1]; - } - mesh.coords = coordsPacked; - - var colors = mesh.colors; - var colorsPacked = new Uint8Array(colors.length * 3); - for (i = 0, j = 0, ii = colors.length; i < ii; i++) { - var c = colors[i]; - colorsPacked[j++] = c[0]; - colorsPacked[j++] = c[1]; - colorsPacked[j++] = c[2]; - } - mesh.colors = colorsPacked; - - var figures = mesh.figures; - for (i = 0, ii = figures.length; i < ii; i++) { - var figure = figures[i], ps = figure.coords, cs = figure.colors; - for (j = 0, jj = ps.length; j < jj; j++) { - ps[j] *= 2; - cs[j] *= 3; - } - } - } - - function Mesh(stream, matrix, xref, res) { - assert(isStream(stream), 'Mesh data is not a stream'); - var dict = stream.dict; - this.matrix = matrix; - this.shadingType = dict.get('ShadingType'); - this.type = 'Pattern'; - this.bbox = dict.get('BBox'); - var cs = dict.get('ColorSpace', 'CS'); - cs = ColorSpace.parse(cs, xref, res); - this.cs = cs; - this.background = dict.has('Background') ? - cs.getRgb(dict.get('Background'), 0) : null; - - var fnObj = dict.get('Function'); - var fn = fnObj ? PDFFunction.parseArray(xref, fnObj) : null; - - this.coords = []; - this.colors = []; - this.figures = []; - - var decodeContext = { - bitsPerCoordinate: dict.get('BitsPerCoordinate'), - bitsPerComponent: dict.get('BitsPerComponent'), - bitsPerFlag: dict.get('BitsPerFlag'), - decode: dict.get('Decode'), - colorFn: fn, - colorSpace: cs, - numComps: fn ? 1 : cs.numComps - }; - var reader = new MeshStreamReader(stream, decodeContext); - - var patchMesh = false; - switch (this.shadingType) { - case ShadingType.FREE_FORM_MESH: - decodeType4Shading(this, reader); - break; - case ShadingType.LATTICE_FORM_MESH: - var verticesPerRow = dict.get('VerticesPerRow') | 0; - assert(verticesPerRow >= 2, 'Invalid VerticesPerRow'); - decodeType5Shading(this, reader, verticesPerRow); - break; - case ShadingType.COONS_PATCH_MESH: - decodeType6Shading(this, reader); - patchMesh = true; - break; - case ShadingType.TENSOR_PATCH_MESH: - decodeType7Shading(this, reader); - patchMesh = true; - break; - default: - error('Unsupported mesh type.'); - break; - } - - if (patchMesh) { - // dirty bounds calculation for determining, how dense shall be triangles - updateBounds(this); - for (var i = 0, ii = this.figures.length; i < ii; i++) { - buildFigureFromPatch(this, i); - } - } - // calculate bounds - updateBounds(this); - - packData(this); - } - - Mesh.prototype = { - getIR: function Mesh_getIR() { - return ['Mesh', this.shadingType, this.coords, this.colors, this.figures, - this.bounds, this.matrix, this.bbox, this.background]; - } - }; - - return Mesh; -})(); - -Shadings.Dummy = (function DummyClosure() { - function Dummy() { - this.type = 'Pattern'; - } - - Dummy.prototype = { - getIR: function Dummy_getIR() { - return ['Dummy']; - } - }; - return Dummy; -})(); - -function getTilingPatternIR(operatorList, dict, args) { - var matrix = dict.get('Matrix'); - var bbox = dict.get('BBox'); - var xstep = dict.get('XStep'); - var ystep = dict.get('YStep'); - var paintType = dict.get('PaintType'); - var tilingType = dict.get('TilingType'); - - return [ - 'TilingPattern', args, operatorList, matrix, bbox, xstep, ystep, - paintType, tilingType - ]; -} - - -var PartialEvaluator = (function PartialEvaluatorClosure() { - function PartialEvaluator(pdfManager, xref, handler, pageIndex, - uniquePrefix, idCounters, fontCache) { - this.pdfManager = pdfManager; - this.xref = xref; - this.handler = handler; - this.pageIndex = pageIndex; - this.uniquePrefix = uniquePrefix; - this.idCounters = idCounters; - this.fontCache = fontCache; - } - - // Trying to minimize Date.now() usage and check every 100 time - var TIME_SLOT_DURATION_MS = 20; - var CHECK_TIME_EVERY = 100; - function TimeSlotManager() { - this.reset(); - } - TimeSlotManager.prototype = { - check: function TimeSlotManager_check() { - if (++this.checked < CHECK_TIME_EVERY) { - return false; - } - this.checked = 0; - return this.endTime <= Date.now(); - }, - reset: function TimeSlotManager_reset() { - this.endTime = Date.now() + TIME_SLOT_DURATION_MS; - this.checked = 0; - } - }; - - var deferred = Promise.resolve(); - - var TILING_PATTERN = 1, SHADING_PATTERN = 2; - - PartialEvaluator.prototype = { - hasBlendModes: function PartialEvaluator_hasBlendModes(resources) { - if (!isDict(resources)) { - return false; - } - - var processed = Object.create(null); - if (resources.objId) { - processed[resources.objId] = true; - } - - var nodes = [resources]; - while (nodes.length) { - var key; - var node = nodes.shift(); - // First check the current resources for blend modes. - var graphicStates = node.get('ExtGState'); - if (isDict(graphicStates)) { - graphicStates = graphicStates.getAll(); - for (key in graphicStates) { - var graphicState = graphicStates[key]; - var bm = graphicState['BM']; - if (isName(bm) && bm.name !== 'Normal') { - return true; - } - } - } - // Descend into the XObjects to look for more resources and blend modes. - var xObjects = node.get('XObject'); - if (!isDict(xObjects)) { - continue; - } - xObjects = xObjects.getAll(); - for (key in xObjects) { - var xObject = xObjects[key]; - if (!isStream(xObject)) { - continue; - } - if (xObject.dict.objId) { - if (processed[xObject.dict.objId]) { - // stream has objId and is processed already - continue; - } - processed[xObject.dict.objId] = true; - } - var xResources = xObject.dict.get('Resources'); - // Checking objId to detect an infinite loop. - if (isDict(xResources) && - (!xResources.objId || !processed[xResources.objId])) { - nodes.push(xResources); - if (xResources.objId) { - processed[xResources.objId] = true; - } - } - } - } - return false; - }, - - buildFormXObject: function PartialEvaluator_buildFormXObject(resources, - xobj, smask, - operatorList, - task, - initialState) { - var matrix = xobj.dict.getArray('Matrix'); - var bbox = xobj.dict.getArray('BBox'); - var group = xobj.dict.get('Group'); - if (group) { - var groupOptions = { - matrix: matrix, - bbox: bbox, - smask: smask, - isolated: false, - knockout: false - }; - - var groupSubtype = group.get('S'); - var colorSpace; - if (isName(groupSubtype) && groupSubtype.name === 'Transparency') { - groupOptions.isolated = (group.get('I') || false); - groupOptions.knockout = (group.get('K') || false); - colorSpace = (group.has('CS') ? - ColorSpace.parse(group.get('CS'), this.xref, resources) : null); - } - - if (smask && smask.backdrop) { - colorSpace = colorSpace || ColorSpace.singletons.rgb; - smask.backdrop = colorSpace.getRgb(smask.backdrop, 0); - } - - operatorList.addOp(OPS.beginGroup, [groupOptions]); - } - - operatorList.addOp(OPS.paintFormXObjectBegin, [matrix, bbox]); - - return this.getOperatorList(xobj, task, - (xobj.dict.get('Resources') || resources), operatorList, initialState). - then(function () { - operatorList.addOp(OPS.paintFormXObjectEnd, []); - - if (group) { - operatorList.addOp(OPS.endGroup, [groupOptions]); - } - }); - }, - - buildPaintImageXObject: - function PartialEvaluator_buildPaintImageXObject(resources, image, - inline, operatorList, - cacheKey, imageCache) { - var self = this; - var dict = image.dict; - var w = dict.get('Width', 'W'); - var h = dict.get('Height', 'H'); - - if (!(w && isNum(w)) || !(h && isNum(h))) { - warn('Image dimensions are missing, or not numbers.'); - return; - } - if (PDFJS.maxImageSize !== -1 && w * h > PDFJS.maxImageSize) { - warn('Image exceeded maximum allowed size and was removed.'); - return; - } - - var imageMask = (dict.get('ImageMask', 'IM') || false); - var imgData, args; - if (imageMask) { - // This depends on a tmpCanvas being filled with the - // current fillStyle, such that processing the pixel - // data can't be done here. Instead of creating a - // complete PDFImage, only read the information needed - // for later. - - var width = dict.get('Width', 'W'); - var height = dict.get('Height', 'H'); - var bitStrideLength = (width + 7) >> 3; - var imgArray = image.getBytes(bitStrideLength * height); - var decode = dict.get('Decode', 'D'); - var inverseDecode = (!!decode && decode[0] > 0); - - imgData = PDFImage.createMask(imgArray, width, height, - image instanceof DecodeStream, - inverseDecode); - imgData.cached = true; - args = [imgData]; - operatorList.addOp(OPS.paintImageMaskXObject, args); - if (cacheKey) { - imageCache[cacheKey] = { - fn: OPS.paintImageMaskXObject, - args: args - }; - } - return; - } - - var softMask = (dict.get('SMask', 'SM') || false); - var mask = (dict.get('Mask') || false); - - var SMALL_IMAGE_DIMENSIONS = 200; - // Inlining small images into the queue as RGB data - if (inline && !softMask && !mask && !(image instanceof JpegStream) && - (w + h) < SMALL_IMAGE_DIMENSIONS) { - var imageObj = new PDFImage(this.xref, resources, image, - inline, null, null); - // We force the use of RGBA_32BPP images here, because we can't handle - // any other kind. - imgData = imageObj.createImageData(/* forceRGBA = */ true); - operatorList.addOp(OPS.paintInlineImageXObject, [imgData]); - return; - } - - // If there is no imageMask, create the PDFImage and a lot - // of image processing can be done here. - var uniquePrefix = (this.uniquePrefix || ''); - var objId = 'img_' + uniquePrefix + (++this.idCounters.obj); - operatorList.addDependency(objId); - args = [objId, w, h]; - - if (!softMask && !mask && image instanceof JpegStream && - image.isNativelySupported(this.xref, resources)) { - // These JPEGs don't need any more processing so we can just send it. - operatorList.addOp(OPS.paintJpegXObject, args); - this.handler.send('obj', - [objId, this.pageIndex, 'JpegStream', image.getIR()]); - return; - } - - PDFImage.buildImage(self.handler, self.xref, resources, image, inline). - then(function(imageObj) { - var imgData = imageObj.createImageData(/* forceRGBA = */ false); - self.handler.send('obj', [objId, self.pageIndex, 'Image', imgData], - [imgData.data.buffer]); - }).then(undefined, function (reason) { - warn('Unable to decode image: ' + reason); - self.handler.send('obj', [objId, self.pageIndex, 'Image', null]); - }); - - operatorList.addOp(OPS.paintImageXObject, args); - if (cacheKey) { - imageCache[cacheKey] = { - fn: OPS.paintImageXObject, - args: args - }; - } - }, - - handleSMask: function PartialEvaluator_handleSmask(smask, resources, - operatorList, task, - stateManager) { - var smaskContent = smask.get('G'); - var smaskOptions = { - subtype: smask.get('S').name, - backdrop: smask.get('BC') + function parseGlyfTable(glyf, loca, isGlyphLocationsLong) { + var itemSize, itemDecode; + if (isGlyphLocationsLong) { + itemSize = 4; + itemDecode = function fontItemDecodeLong(data, offset) { + return (data[offset] << 24) | (data[offset + 1] << 16) | + (data[offset + 2] << 8) | data[offset + 3]; }; + } else { + itemSize = 2; + itemDecode = function fontItemDecode(data, offset) { + return (data[offset] << 9) | (data[offset + 1] << 1); + }; + } + var glyphs = []; + var startOffset = itemDecode(loca, 0); + for (var j = itemSize; j < loca.length; j += itemSize) { + var endOffset = itemDecode(loca, j); + glyphs.push(glyf.subarray(startOffset, endOffset)); + startOffset = endOffset; + } + return glyphs; + } - // The SMask might have a alpha/luminosity value transfer function -- - // we will build a map of integer values in range 0..255 to be fast. - var transferObj = smask.get('TR'); - if (isPDFFunction(transferObj)) { - var transferFn = PDFFunction.parse(this.xref, transferObj); - var transferMap = new Uint8Array(256); - var tmp = new Float32Array(1); - for (var i = 0; i < 255; i++) { - tmp[0] = i / 255; - transferFn(tmp, 0, tmp, 0); - transferMap[i] = (tmp[0] * 255) | 0; + function lookupCmap(ranges, unicode) { + var code = unicode.charCodeAt(0); + var l = 0, r = ranges.length - 1; + while (l < r) { + var c = (l + r + 1) >> 1; + if (code < ranges[c].start) { + r = c - 1; + } else { + l = c; + } + } + if (ranges[l].start <= code && code <= ranges[l].end) { + return (ranges[l].idDelta + (ranges[l].ids ? + ranges[l].ids[code - ranges[l].start] : code)) & 0xFFFF; + } + return 0; + } + + function compileGlyf(code, cmds, font) { + function moveTo(x, y) { + cmds.push({cmd: 'moveTo', args: [x, y]}); + } + function lineTo(x, y) { + cmds.push({cmd: 'lineTo', args: [x, y]}); + } + function quadraticCurveTo(xa, ya, x, y) { + cmds.push({cmd: 'quadraticCurveTo', args: [xa, ya, x, y]}); + } + + var i = 0; + var numberOfContours = ((code[i] << 24) | (code[i + 1] << 16)) >> 16; + var flags; + var x = 0, y = 0; + i += 10; + if (numberOfContours < 0) { + // composite glyph + do { + flags = (code[i] << 8) | code[i + 1]; + var glyphIndex = (code[i + 2] << 8) | code[i + 3]; + i += 4; + var arg1, arg2; + if ((flags & 0x01)) { + arg1 = ((code[i] << 24) | (code[i + 1] << 16)) >> 16; + arg2 = ((code[i + 2] << 24) | (code[i + 3] << 16)) >> 16; + i += 4; + } else { + arg1 = code[i++]; arg2 = code[i++]; } - smaskOptions.transferMap = transferMap; + if ((flags & 0x02)) { + x = arg1; + y = arg2; + } else { + x = 0; y = 0; // TODO "they are points" ? + } + var scaleX = 1, scaleY = 1, scale01 = 0, scale10 = 0; + if ((flags & 0x08)) { + scaleX = + scaleY = ((code[i] << 24) | (code[i + 1] << 16)) / 1073741824; + i += 2; + } else if ((flags & 0x40)) { + scaleX = ((code[i] << 24) | (code[i + 1] << 16)) / 1073741824; + scaleY = ((code[i + 2] << 24) | (code[i + 3] << 16)) / 1073741824; + i += 4; + } else if ((flags & 0x80)) { + scaleX = ((code[i] << 24) | (code[i + 1] << 16)) / 1073741824; + scale01 = ((code[i + 2] << 24) | (code[i + 3] << 16)) / 1073741824; + scale10 = ((code[i + 4] << 24) | (code[i + 5] << 16)) / 1073741824; + scaleY = ((code[i + 6] << 24) | (code[i + 7] << 16)) / 1073741824; + i += 8; + } + var subglyph = font.glyphs[glyphIndex]; + if (subglyph) { + cmds.push({cmd: 'save'}); + cmds.push({cmd: 'transform', + args: [scaleX, scale01, scale10, scaleY, x, y]}); + compileGlyf(subglyph, cmds, font); + cmds.push({cmd: 'restore'}); + } + } while ((flags & 0x20)); + } else { + // simple glyph + var endPtsOfContours = []; + var j, jj; + for (j = 0; j < numberOfContours; j++) { + endPtsOfContours.push((code[i] << 8) | code[i + 1]); + i += 2; + } + var instructionLength = (code[i] << 8) | code[i + 1]; + i += 2 + instructionLength; // skipping the instructions + var numberOfPoints = endPtsOfContours[endPtsOfContours.length - 1] + 1; + var points = []; + while (points.length < numberOfPoints) { + flags = code[i++]; + var repeat = 1; + if ((flags & 0x08)) { + repeat += code[i++]; + } + while (repeat-- > 0) { + points.push({flags: flags}); + } + } + for (j = 0; j < numberOfPoints; j++) { + switch (points[j].flags & 0x12) { + case 0x00: + x += ((code[i] << 24) | (code[i + 1] << 16)) >> 16; + i += 2; + break; + case 0x02: + x -= code[i++]; + break; + case 0x12: + x += code[i++]; + break; + } + points[j].x = x; + } + for (j = 0; j < numberOfPoints; j++) { + switch (points[j].flags & 0x24) { + case 0x00: + y += ((code[i] << 24) | (code[i + 1] << 16)) >> 16; + i += 2; + break; + case 0x04: + y -= code[i++]; + break; + case 0x24: + y += code[i++]; + break; + } + points[j].y = y; } - return this.buildFormXObject(resources, smaskContent, smaskOptions, - operatorList, task, stateManager.state.clone()); - }, - - handleTilingType: - function PartialEvaluator_handleTilingType(fn, args, resources, - pattern, patternDict, - operatorList, task) { - // Create an IR of the pattern code. - var tilingOpList = new OperatorList(); - // Merge the available resources, to prevent issues when the patternDict - // is missing some /Resources entries (fixes issue6541.pdf). - var resourcesArray = [patternDict.get('Resources'), resources]; - var patternResources = Dict.merge(this.xref, resourcesArray); - - return this.getOperatorList(pattern, task, patternResources, - tilingOpList).then(function () { - // Add the dependencies to the parent operator list so they are - // resolved before sub operator list is executed synchronously. - operatorList.addDependencies(tilingOpList.dependencies); - operatorList.addOp(fn, getTilingPatternIR({ - fnArray: tilingOpList.fnArray, - argsArray: tilingOpList.argsArray - }, patternDict, args)); - }); - }, - - handleSetFont: - function PartialEvaluator_handleSetFont(resources, fontArgs, fontRef, - operatorList, task, state) { - // TODO(mack): Not needed? - var fontName; - if (fontArgs) { - fontArgs = fontArgs.slice(); - fontName = fontArgs[0].name; - } - - var self = this; - return this.loadFont(fontName, fontRef, this.xref, resources).then( - function (translated) { - if (!translated.font.isType3Font) { - return translated; + var startPoint = 0; + for (i = 0; i < numberOfContours; i++) { + var endPoint = endPtsOfContours[i]; + // contours might have implicit points, which is located in the middle + // between two neighboring off-curve points + var contour = points.slice(startPoint, endPoint + 1); + if ((contour[0].flags & 1)) { + contour.push(contour[0]); // using start point at the contour end + } else if ((contour[contour.length - 1].flags & 1)) { + // first is off-curve point, trying to use one from the end + contour.unshift(contour[contour.length - 1]); + } else { + // start and end are off-curve points, creating implicit one + var p = { + flags: 1, + x: (contour[0].x + contour[contour.length - 1].x) / 2, + y: (contour[0].y + contour[contour.length - 1].y) / 2 + }; + contour.unshift(p); + contour.push(p); } - return translated.loadType3Data(self, resources, operatorList, task). - then(function () { - return translated; - }, function (reason) { - // Error in the font data -- sending unsupported feature notification. - self.handler.send('UnsupportedFeature', - {featureId: UNSUPPORTED_FEATURES.font}); - return new TranslatedFont('g_font_error', - new ErrorFont('Type3 font load error: ' + reason), translated.font); - }); - }).then(function (translated) { - state.font = translated.font; - translated.send(self.handler); - return translated.loadedName; - }); - }, - - handleText: function PartialEvaluator_handleText(chars, state) { - var font = state.font; - var glyphs = font.charsToGlyphs(chars); - var isAddToPathSet = !!(state.textRenderingMode & - TextRenderingMode.ADD_TO_PATH_FLAG); - if (font.data && (isAddToPathSet || PDFJS.disableFontFace)) { - var buildPath = function (fontChar) { - if (!font.renderer.hasBuiltPath(fontChar)) { - var path = font.renderer.getPathJs(fontChar); - this.handler.send('commonobj', [ - font.loadedName + '_path_' + fontChar, - 'FontPath', - path - ]); - } - }.bind(this); - - for (var i = 0, ii = glyphs.length; i < ii; i++) { - var glyph = glyphs[i]; - buildPath(glyph.fontChar); - - // If the glyph has an accent we need to build a path for its - // fontChar too, otherwise CanvasGraphics_paintChar will fail. - var accent = glyph.accent; - if (accent && accent.fontChar) { - buildPath(accent.fontChar); + moveTo(contour[0].x, contour[0].y); + for (j = 1, jj = contour.length; j < jj; j++) { + if ((contour[j].flags & 1)) { + lineTo(contour[j].x, contour[j].y); + } else if ((contour[j + 1].flags & 1)){ + quadraticCurveTo(contour[j].x, contour[j].y, + contour[j + 1].x, contour[j + 1].y); + j++; + } else { + quadraticCurveTo(contour[j].x, contour[j].y, + (contour[j].x + contour[j + 1].x) / 2, + (contour[j].y + contour[j + 1].y) / 2); } } + startPoint = endPoint + 1; } + } + } - return glyphs; - }, + function compileCharString(code, cmds, font) { + var stack = []; + var x = 0, y = 0; + var stems = 0; - setGState: function PartialEvaluator_setGState(resources, gState, - operatorList, task, - xref, stateManager) { - // This array holds the converted/processed state data. - var gStateObj = []; - var gStateMap = gState.map; - var self = this; - var promise = Promise.resolve(); - for (var key in gStateMap) { - var value = gStateMap[key]; - switch (key) { - case 'Type': + function moveTo(x, y) { + cmds.push({cmd: 'moveTo', args: [x, y]}); + } + function lineTo(x, y) { + cmds.push({cmd: 'lineTo', args: [x, y]}); + } + function bezierCurveTo(x1, y1, x2, y2, x, y) { + cmds.push({cmd: 'bezierCurveTo', args: [x1, y1, x2, y2, x, y]}); + } + + function parse(code) { + var i = 0; + while (i < code.length) { + var stackClean = false; + var v = code[i++]; + var xa, xb, ya, yb, y1, y2, y3, n, subrCode; + switch (v) { + case 1: // hstem + stems += stack.length >> 1; + stackClean = true; break; - case 'LW': - case 'LC': - case 'LJ': - case 'ML': - case 'D': - case 'RI': - case 'FL': - case 'CA': - case 'ca': - gStateObj.push([key, value]); + case 3: // vstem + stems += stack.length >> 1; + stackClean = true; break; - case 'Font': - promise = promise.then(function () { - return self.handleSetFont(resources, null, value[0], operatorList, - task, stateManager.state). - then(function (loadedName) { - operatorList.addDependency(loadedName); - gStateObj.push([key, [loadedName, value[1]]]); - }); - }); + case 4: // vmoveto + y += stack.pop(); + moveTo(x, y); + stackClean = true; break; - case 'BM': - gStateObj.push([key, value]); - break; - case 'SMask': - if (isName(value) && value.name === 'None') { - gStateObj.push([key, false]); - break; + case 5: // rlineto + while (stack.length > 0) { + x += stack.shift(); + y += stack.shift(); + lineTo(x, y); } - var dict = xref.fetchIfRef(value); - if (isDict(dict)) { - promise = promise.then(function () { - return self.handleSMask(dict, resources, operatorList, - task, stateManager); - }); - gStateObj.push([key, true]); - } else { - warn('Unsupported SMask type'); - } - break; - // Only generate info log messages for the following since - // they are unlikely to have a big impact on the rendering. - case 'OP': - case 'op': - case 'OPM': - case 'BG': - case 'BG2': - case 'UCR': - case 'UCR2': - case 'TR': - case 'TR2': - case 'HT': - case 'SM': - case 'SA': - case 'AIS': - case 'TK': - // TODO implement these operators. - info('graphic state operator ' + key); + case 6: // hlineto + while (stack.length > 0) { + x += stack.shift(); + lineTo(x, y); + if (stack.length === 0) { + break; + } + y += stack.shift(); + lineTo(x, y); + } + break; + case 7: // vlineto + while (stack.length > 0) { + y += stack.shift(); + lineTo(x, y); + if (stack.length === 0) { + break; + } + x += stack.shift(); + lineTo(x, y); + } + break; + case 8: // rrcurveto + while (stack.length > 0) { + xa = x + stack.shift(); ya = y + stack.shift(); + xb = xa + stack.shift(); yb = ya + stack.shift(); + x = xb + stack.shift(); y = yb + stack.shift(); + bezierCurveTo(xa, ya, xb, yb, x, y); + } + break; + case 10: // callsubr + n = stack.pop() + font.subrsBias; + subrCode = font.subrs[n]; + if (subrCode) { + parse(subrCode); + } + break; + case 11: // return + return; + case 12: + v = code[i++]; + switch (v) { + case 34: // flex + xa = x + stack.shift(); + xb = xa + stack.shift(); y1 = y + stack.shift(); + x = xb + stack.shift(); + bezierCurveTo(xa, y, xb, y1, x, y1); + xa = x + stack.shift(); + xb = xa + stack.shift(); + x = xb + stack.shift(); + bezierCurveTo(xa, y1, xb, y, x, y); + break; + case 35: // flex + xa = x + stack.shift(); ya = y + stack.shift(); + xb = xa + stack.shift(); yb = ya + stack.shift(); + x = xb + stack.shift(); y = yb + stack.shift(); + bezierCurveTo(xa, ya, xb, yb, x, y); + xa = x + stack.shift(); ya = y + stack.shift(); + xb = xa + stack.shift(); yb = ya + stack.shift(); + x = xb + stack.shift(); y = yb + stack.shift(); + bezierCurveTo(xa, ya, xb, yb, x, y); + stack.pop(); // fd + break; + case 36: // hflex1 + xa = x + stack.shift(); y1 = y + stack.shift(); + xb = xa + stack.shift(); y2 = y1 + stack.shift(); + x = xb + stack.shift(); + bezierCurveTo(xa, y1, xb, y2, x, y2); + xa = x + stack.shift(); + xb = xa + stack.shift(); y3 = y2 + stack.shift(); + x = xb + stack.shift(); + bezierCurveTo(xa, y2, xb, y3, x, y); + break; + case 37: // flex1 + var x0 = x, y0 = y; + xa = x + stack.shift(); ya = y + stack.shift(); + xb = xa + stack.shift(); yb = ya + stack.shift(); + x = xb + stack.shift(); y = yb + stack.shift(); + bezierCurveTo(xa, ya, xb, yb, x, y); + xa = x + stack.shift(); ya = y + stack.shift(); + xb = xa + stack.shift(); yb = ya + stack.shift(); + x = xb; y = yb; + if (Math.abs(x - x0) > Math.abs(y - y0)) { + x += stack.shift(); + } else { + y += stack.shift(); + } + bezierCurveTo(xa, ya, xb, yb, x, y); + break; + default: + error('unknown operator: 12 ' + v); + } + break; + case 14: // endchar + if (stack.length >= 4) { + var achar = stack.pop(); + var bchar = stack.pop(); + y = stack.pop(); + x = stack.pop(); + cmds.push({cmd: 'save'}); + cmds.push({cmd: 'translate', args: [x, y]}); + var gid = lookupCmap(font.cmap, String.fromCharCode( + font.glyphNameMap[Encodings.StandardEncoding[achar]])); + compileCharString(font.glyphs[gid], cmds, font); + cmds.push({cmd: 'restore'}); + + gid = lookupCmap(font.cmap, String.fromCharCode( + font.glyphNameMap[Encodings.StandardEncoding[bchar]])); + compileCharString(font.glyphs[gid], cmds, font); + } + return; + case 18: // hstemhm + stems += stack.length >> 1; + stackClean = true; + break; + case 19: // hintmask + stems += stack.length >> 1; + i += (stems + 7) >> 3; + stackClean = true; + break; + case 20: // cntrmask + stems += stack.length >> 1; + i += (stems + 7) >> 3; + stackClean = true; + break; + case 21: // rmoveto + y += stack.pop(); + x += stack.pop(); + moveTo(x, y); + stackClean = true; + break; + case 22: // hmoveto + x += stack.pop(); + moveTo(x, y); + stackClean = true; + break; + case 23: // vstemhm + stems += stack.length >> 1; + stackClean = true; + break; + case 24: // rcurveline + while (stack.length > 2) { + xa = x + stack.shift(); ya = y + stack.shift(); + xb = xa + stack.shift(); yb = ya + stack.shift(); + x = xb + stack.shift(); y = yb + stack.shift(); + bezierCurveTo(xa, ya, xb, yb, x, y); + } + x += stack.shift(); + y += stack.shift(); + lineTo(x, y); + break; + case 25: // rlinecurve + while (stack.length > 6) { + x += stack.shift(); + y += stack.shift(); + lineTo(x, y); + } + xa = x + stack.shift(); ya = y + stack.shift(); + xb = xa + stack.shift(); yb = ya + stack.shift(); + x = xb + stack.shift(); y = yb + stack.shift(); + bezierCurveTo(xa, ya, xb, yb, x, y); + break; + case 26: // vvcurveto + if (stack.length % 2) { + x += stack.shift(); + } + while (stack.length > 0) { + xa = x; ya = y + stack.shift(); + xb = xa + stack.shift(); yb = ya + stack.shift(); + x = xb; y = yb + stack.shift(); + bezierCurveTo(xa, ya, xb, yb, x, y); + } + break; + case 27: // hhcurveto + if (stack.length % 2) { + y += stack.shift(); + } + while (stack.length > 0) { + xa = x + stack.shift(); ya = y; + xb = xa + stack.shift(); yb = ya + stack.shift(); + x = xb + stack.shift(); y = yb; + bezierCurveTo(xa, ya, xb, yb, x, y); + } + break; + case 28: + stack.push(((code[i] << 24) | (code[i + 1] << 16)) >> 16); + i += 2; + break; + case 29: // callgsubr + n = stack.pop() + font.gsubrsBias; + subrCode = font.gsubrs[n]; + if (subrCode) { + parse(subrCode); + } + break; + case 30: // vhcurveto + while (stack.length > 0) { + xa = x; ya = y + stack.shift(); + xb = xa + stack.shift(); yb = ya + stack.shift(); + x = xb + stack.shift(); + y = yb + (stack.length === 1 ? stack.shift() : 0); + bezierCurveTo(xa, ya, xb, yb, x, y); + if (stack.length === 0) { + break; + } + + xa = x + stack.shift(); ya = y; + xb = xa + stack.shift(); yb = ya + stack.shift(); + y = yb + stack.shift(); + x = xb + (stack.length === 1 ? stack.shift() : 0); + bezierCurveTo(xa, ya, xb, yb, x, y); + } + break; + case 31: // hvcurveto + while (stack.length > 0) { + xa = x + stack.shift(); ya = y; + xb = xa + stack.shift(); yb = ya + stack.shift(); + y = yb + stack.shift(); + x = xb + (stack.length === 1 ? stack.shift() : 0); + bezierCurveTo(xa, ya, xb, yb, x, y); + if (stack.length === 0) { + break; + } + + xa = x; ya = y + stack.shift(); + xb = xa + stack.shift(); yb = ya + stack.shift(); + x = xb + stack.shift(); + y = yb + (stack.length === 1 ? stack.shift() : 0); + bezierCurveTo(xa, ya, xb, yb, x, y); + } break; default: - info('Unknown graphic state operator ' + key); + if (v < 32) { + error('unknown operator: ' + v); + } + if (v < 247) { + stack.push(v - 139); + } else if (v < 251) { + stack.push((v - 247) * 256 + code[i++] + 108); + } else if (v < 255) { + stack.push(-(v - 251) * 256 - code[i++] - 108); + } else { + stack.push(((code[i] << 24) | (code[i + 1] << 16) | + (code[i + 2] << 8) | code[i + 3]) / 65536); + i += 4; + } + break; + } + if (stackClean) { + stack.length = 0; + } + } + } + parse(code); + } + + var noop = ''; + + function CompiledFont(fontMatrix) { + this.compiledGlyphs = {}; + this.fontMatrix = fontMatrix; + } + CompiledFont.prototype = { + getPathJs: function (unicode) { + var gid = lookupCmap(this.cmap, unicode); + var fn = this.compiledGlyphs[gid]; + if (!fn) { + this.compiledGlyphs[gid] = fn = this.compileGlyph(this.glyphs[gid]); + } + return fn; + }, + + compileGlyph: function (code) { + if (!code || code.length === 0 || code[0] === 14) { + return noop; + } + + var cmds = []; + cmds.push({cmd: 'save'}); + cmds.push({cmd: 'transform', args: this.fontMatrix.slice()}); + cmds.push({cmd: 'scale', args: ['size', '-size']}); + + this.compileGlyphImpl(code, cmds); + + cmds.push({cmd: 'restore'}); + + return cmds; + }, + + compileGlyphImpl: function () { + error('Children classes should implement this.'); + }, + + hasBuiltPath: function (unicode) { + var gid = lookupCmap(this.cmap, unicode); + return gid in this.compiledGlyphs; + } + }; + + function TrueTypeCompiled(glyphs, cmap, fontMatrix) { + fontMatrix = fontMatrix || [0.000488, 0, 0, 0.000488, 0, 0]; + CompiledFont.call(this, fontMatrix); + + this.glyphs = glyphs; + this.cmap = cmap; + + this.compiledGlyphs = []; + } + + Util.inherit(TrueTypeCompiled, CompiledFont, { + compileGlyphImpl: function (code, cmds) { + compileGlyf(code, cmds, this); + } + }); + + function Type2Compiled(cffInfo, cmap, fontMatrix, glyphNameMap) { + fontMatrix = fontMatrix || [0.001, 0, 0, 0.001, 0, 0]; + CompiledFont.call(this, fontMatrix); + this.glyphs = cffInfo.glyphs; + this.gsubrs = cffInfo.gsubrs || []; + this.subrs = cffInfo.subrs || []; + this.cmap = cmap; + this.glyphNameMap = glyphNameMap || GlyphsUnicode; + + this.compiledGlyphs = []; + this.gsubrsBias = (this.gsubrs.length < 1240 ? + 107 : (this.gsubrs.length < 33900 ? 1131 : 32768)); + this.subrsBias = (this.subrs.length < 1240 ? + 107 : (this.subrs.length < 33900 ? 1131 : 32768)); + } + + Util.inherit(Type2Compiled, CompiledFont, { + compileGlyphImpl: function (code, cmds) { + compileCharString(code, cmds, this); + } + }); + + + return { + create: function FontRendererFactory_create(font) { + var data = new Uint8Array(font.data); + var cmap, glyf, loca, cff, indexToLocFormat, unitsPerEm; + var numTables = getUshort(data, 4); + for (var i = 0, p = 12; i < numTables; i++, p += 16) { + var tag = bytesToString(data.subarray(p, p + 4)); + var offset = getLong(data, p + 8); + var length = getLong(data, p + 12); + switch (tag) { + case 'cmap': + cmap = parseCmap(data, offset, offset + length); + break; + case 'glyf': + glyf = data.subarray(offset, offset + length); + break; + case 'loca': + loca = data.subarray(offset, offset + length); + break; + case 'head': + unitsPerEm = getUshort(data, offset + 18); + indexToLocFormat = getUshort(data, offset + 50); + break; + case 'CFF ': + cff = parseCff(data, offset, offset + length); break; } } - return promise.then(function () { - if (gStateObj.length >= 0) { - operatorList.addOp(OPS.setGState, [gStateObj]); - } - }); + + if (glyf) { + var fontMatrix = (!unitsPerEm ? font.fontMatrix : + [1 / unitsPerEm, 0, 0, 1 / unitsPerEm, 0, 0]); + return new TrueTypeCompiled( + parseGlyfTable(glyf, loca, indexToLocFormat), cmap, fontMatrix); + } else { + return new Type2Compiled(cff, cmap, font.fontMatrix, font.glyphNameMap); + } + } + }; +})(); + + +// TODO refactor to remove cyclic dependency on fonts.js +function _setCoreFonts(coreFonts_) { + coreFonts = coreFonts_; + Encodings = coreFonts_.Encodings; + CFFParser = coreFonts_.CFFParser; +} +exports._setCoreFonts = _setCoreFonts; + +exports.FontRendererFactory = FontRendererFactory; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreParser = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreStream); + } +}(this, function (exports, sharedUtil, corePrimitives, coreStream) { + +var MissingDataException = sharedUtil.MissingDataException; +var StreamType = sharedUtil.StreamType; +var assert = sharedUtil.assert; +var error = sharedUtil.error; +var info = sharedUtil.info; +var isArray = sharedUtil.isArray; +var isInt = sharedUtil.isInt; +var isNum = sharedUtil.isNum; +var isString = sharedUtil.isString; +var warn = sharedUtil.warn; +var Cmd = corePrimitives.Cmd; +var Dict = corePrimitives.Dict; +var Name = corePrimitives.Name; +var Ref = corePrimitives.Ref; +var isCmd = corePrimitives.isCmd; +var isDict = corePrimitives.isDict; +var isName = corePrimitives.isName; +var Ascii85Stream = coreStream.Ascii85Stream; +var AsciiHexStream = coreStream.AsciiHexStream; +var CCITTFaxStream = coreStream.CCITTFaxStream; +var FlateStream = coreStream.FlateStream; +var Jbig2Stream = coreStream.Jbig2Stream; +var JpegStream = coreStream.JpegStream; +var JpxStream = coreStream.JpxStream; +var LZWStream = coreStream.LZWStream; +var NullStream = coreStream.NullStream; +var PredictorStream = coreStream.PredictorStream; +var RunLengthStream = coreStream.RunLengthStream; + +var EOF = {}; + +function isEOF(v) { + return (v === EOF); +} + +var MAX_LENGTH_TO_CACHE = 1000; + +var Parser = (function ParserClosure() { + function Parser(lexer, allowStreams, xref) { + this.lexer = lexer; + this.allowStreams = allowStreams; + this.xref = xref; + this.imageCache = {}; + this.refill(); + } + + Parser.prototype = { + refill: function Parser_refill() { + this.buf1 = this.lexer.getObj(); + this.buf2 = this.lexer.getObj(); }, - - loadFont: function PartialEvaluator_loadFont(fontName, font, xref, - resources) { - - function errorFont() { - return Promise.resolve(new TranslatedFont('g_font_error', - new ErrorFont('Font ' + fontName + ' is not available'), font)); + shift: function Parser_shift() { + if (isCmd(this.buf2, 'ID')) { + this.buf1 = this.buf2; + this.buf2 = null; + } else { + this.buf1 = this.buf2; + this.buf2 = this.lexer.getObj(); } - var fontRef; - if (font) { // Loading by ref. - assert(isRef(font)); - fontRef = font; - } else { // Loading by name. - var fontRes = resources.get('Font'); - if (fontRes) { - fontRef = fontRes.getRaw(fontName); - } else { - warn('fontRes not available'); - return errorFont(); - } - } - if (!fontRef) { - warn('fontRef not available'); - return errorFont(); - } - - if (this.fontCache.has(fontRef)) { - return this.fontCache.get(fontRef); - } - - font = xref.fetchIfRef(fontRef); - if (!isDict(font)) { - return errorFont(); - } - - // We are holding font.translated references just for fontRef that are not - // dictionaries (Dict). See explanation below. - if (font.translated) { - return font.translated; - } - - var fontCapability = createPromiseCapability(); - - var preEvaluatedFont = this.preEvaluateFont(font, xref); - var descriptor = preEvaluatedFont.descriptor; - var fontID = fontRef.num + '_' + fontRef.gen; - if (isDict(descriptor)) { - if (!descriptor.fontAliases) { - descriptor.fontAliases = Object.create(null); - } - - var fontAliases = descriptor.fontAliases; - var hash = preEvaluatedFont.hash; - if (fontAliases[hash]) { - var aliasFontRef = fontAliases[hash].aliasRef; - if (aliasFontRef && this.fontCache.has(aliasFontRef)) { - this.fontCache.putAlias(fontRef, aliasFontRef); - return this.fontCache.get(fontRef); - } - } - - if (!fontAliases[hash]) { - fontAliases[hash] = { - fontID: Font.getFontID() - }; - } - - fontAliases[hash].aliasRef = fontRef; - fontID = fontAliases[hash].fontID; - } - - // Workaround for bad PDF generators that don't reference fonts - // properly, i.e. by not using an object identifier. - // Check if the fontRef is a Dict (as opposed to a standard object), - // in which case we don't cache the font and instead reference it by - // fontName in font.loadedName below. - var fontRefIsDict = isDict(fontRef); - if (!fontRefIsDict) { - this.fontCache.put(fontRef, fontCapability.promise); - } - - // Keep track of each font we translated so the caller can - // load them asynchronously before calling display on a page. - font.loadedName = 'g_' + this.pdfManager.docId + '_f' + (fontRefIsDict ? - fontName.replace(/\W/g, '') : fontID); - - font.translated = fontCapability.promise; - - // TODO move promises into translate font - var translatedPromise; + }, + tryShift: function Parser_tryShift() { try { - translatedPromise = Promise.resolve( - this.translateFont(preEvaluatedFont, xref)); + this.shift(); + return true; } catch (e) { - translatedPromise = Promise.reject(e); - } - - var self = this; - translatedPromise.then(function (translatedFont) { - if (translatedFont.fontType !== undefined) { - var xrefFontStats = xref.stats.fontTypes; - xrefFontStats[translatedFont.fontType] = true; + if (e instanceof MissingDataException) { + throw e; } - - fontCapability.resolve(new TranslatedFont(font.loadedName, - translatedFont, font)); - }, function (reason) { - // TODO fontCapability.reject? - // Error in the font data -- sending unsupported feature notification. - self.handler.send('UnsupportedFeature', - {featureId: UNSUPPORTED_FEATURES.font}); - - try { - // error, but it's still nice to have font type reported - var descriptor = preEvaluatedFont.descriptor; - var fontFile3 = descriptor && descriptor.get('FontFile3'); - var subtype = fontFile3 && fontFile3.get('Subtype'); - var fontType = getFontType(preEvaluatedFont.type, - subtype && subtype.name); - var xrefFontStats = xref.stats.fontTypes; - xrefFontStats[fontType] = true; - } catch (ex) { } - - fontCapability.resolve(new TranslatedFont(font.loadedName, - new ErrorFont(reason instanceof Error ? reason.message : reason), - font)); - }); - return fontCapability.promise; - }, - - buildPath: function PartialEvaluator_buildPath(operatorList, fn, args) { - var lastIndex = operatorList.length - 1; - if (!args) { - args = []; - } - if (lastIndex < 0 || - operatorList.fnArray[lastIndex] !== OPS.constructPath) { - operatorList.addOp(OPS.constructPath, [[fn], args]); - } else { - var opArgs = operatorList.argsArray[lastIndex]; - opArgs[0].push(fn); - Array.prototype.push.apply(opArgs[1], args); + // Upon failure, the caller should reset this.lexer.pos to a known good + // state and call this.shift() twice to reset the buffers. + return false; } }, + getObj: function Parser_getObj(cipherTransform) { + var buf1 = this.buf1; + this.shift(); - handleColorN: function PartialEvaluator_handleColorN(operatorList, fn, args, - cs, patterns, resources, task, xref) { - // compile tiling patterns - var patternName = args[args.length - 1]; - // SCN/scn applies patterns along with normal colors - var pattern; - if (isName(patternName) && - (pattern = patterns.get(patternName.name))) { - var dict = (isStream(pattern) ? pattern.dict : pattern); - var typeNum = dict.get('PatternType'); - - if (typeNum === TILING_PATTERN) { - var color = cs.base ? cs.base.getRgb(args, 0) : null; - return this.handleTilingType(fn, color, resources, pattern, - dict, operatorList, task); - } else if (typeNum === SHADING_PATTERN) { - var shading = dict.get('Shading'); - var matrix = dict.get('Matrix'); - pattern = Pattern.parseShading(shading, matrix, xref, resources, - this.handler); - operatorList.addOp(fn, pattern.getIR()); - return Promise.resolve(); - } else { - return Promise.reject('Unknown PatternType: ' + typeNum); - } - } - // TODO shall we fail here? - operatorList.addOp(fn, args); - return Promise.resolve(); - }, - - getOperatorList: function PartialEvaluator_getOperatorList(stream, - task, - resources, - operatorList, - initialState) { - - var self = this; - var xref = this.xref; - var imageCache = {}; - - assert(operatorList); - - resources = (resources || Dict.empty); - var xobjs = (resources.get('XObject') || Dict.empty); - var patterns = (resources.get('Pattern') || Dict.empty); - var stateManager = new StateManager(initialState || new EvalState()); - var preprocessor = new EvaluatorPreprocessor(stream, xref, stateManager); - var timeSlotManager = new TimeSlotManager(); - - return new Promise(function next(resolve, reject) { - task.ensureNotTerminated(); - timeSlotManager.reset(); - var stop, operation = {}, i, ii, cs; - while (!(stop = timeSlotManager.check())) { - // The arguments parsed by read() are used beyond this loop, so we - // cannot reuse the same array on each iteration. Therefore we pass - // in |null| as the initial value (see the comment on - // EvaluatorPreprocessor_read() for why). - operation.args = null; - if (!(preprocessor.read(operation))) { - break; - } - var args = operation.args; - var fn = operation.fn; - - switch (fn | 0) { - case OPS.paintXObject: - if (args[0].code) { - break; - } - // eagerly compile XForm objects - var name = args[0].name; - if (!name) { - warn('XObject must be referred to by name.'); - continue; - } - if (imageCache[name] !== undefined) { - operatorList.addOp(imageCache[name].fn, imageCache[name].args); - args = null; + if (buf1 instanceof Cmd) { + switch (buf1.cmd) { + case 'BI': // inline image + return this.makeInlineImage(cipherTransform); + case '[': // array + var array = []; + while (!isCmd(this.buf1, ']') && !isEOF(this.buf1)) { + array.push(this.getObj(cipherTransform)); + } + if (isEOF(this.buf1)) { + error('End of file inside array'); + } + this.shift(); + return array; + case '<<': // dictionary or stream + var dict = new Dict(this.xref); + while (!isCmd(this.buf1, '>>') && !isEOF(this.buf1)) { + if (!isName(this.buf1)) { + info('Malformed dictionary: key must be a name object'); + this.shift(); continue; } - var xobj = xobjs.get(name); - if (xobj) { - assert(isStream(xobj), 'XObject should be a stream'); - - var type = xobj.dict.get('Subtype'); - assert(isName(type), - 'XObject should have a Name subtype'); - - if (type.name === 'Form') { - stateManager.save(); - return self.buildFormXObject(resources, xobj, null, - operatorList, task, - stateManager.state.clone()). - then(function () { - stateManager.restore(); - next(resolve, reject); - }, reject); - } else if (type.name === 'Image') { - self.buildPaintImageXObject(resources, xobj, false, - operatorList, name, imageCache); - args = null; - continue; - } else if (type.name === 'PS') { - // PostScript XObjects are unused when viewing documents. - // See section 4.7.1 of Adobe's PDF reference. - info('Ignored XObject subtype PS'); - continue; - } else { - error('Unhandled XObject subtype ' + type.name); - } - } - break; - case OPS.setFont: - var fontSize = args[1]; - // eagerly collect all fonts - return self.handleSetFont(resources, args, null, operatorList, - task, stateManager.state). - then(function (loadedName) { - operatorList.addDependency(loadedName); - operatorList.addOp(OPS.setFont, [loadedName, fontSize]); - next(resolve, reject); - }, reject); - case OPS.endInlineImage: - var cacheKey = args[0].cacheKey; - if (cacheKey) { - var cacheEntry = imageCache[cacheKey]; - if (cacheEntry !== undefined) { - operatorList.addOp(cacheEntry.fn, cacheEntry.args); - args = null; - continue; - } - } - self.buildPaintImageXObject(resources, args[0], true, - operatorList, cacheKey, imageCache); - args = null; - continue; - case OPS.showText: - args[0] = self.handleText(args[0], stateManager.state); - break; - case OPS.showSpacedText: - var arr = args[0]; - var combinedGlyphs = []; - var arrLength = arr.length; - var state = stateManager.state; - for (i = 0; i < arrLength; ++i) { - var arrItem = arr[i]; - if (isString(arrItem)) { - Array.prototype.push.apply(combinedGlyphs, - self.handleText(arrItem, state)); - } else if (isNum(arrItem)) { - combinedGlyphs.push(arrItem); - } - } - args[0] = combinedGlyphs; - fn = OPS.showText; - break; - case OPS.nextLineShowText: - operatorList.addOp(OPS.nextLine); - args[0] = self.handleText(args[0], stateManager.state); - fn = OPS.showText; - break; - case OPS.nextLineSetSpacingShowText: - operatorList.addOp(OPS.nextLine); - operatorList.addOp(OPS.setWordSpacing, [args.shift()]); - operatorList.addOp(OPS.setCharSpacing, [args.shift()]); - args[0] = self.handleText(args[0], stateManager.state); - fn = OPS.showText; - break; - case OPS.setTextRenderingMode: - stateManager.state.textRenderingMode = args[0]; - break; - - case OPS.setFillColorSpace: - stateManager.state.fillColorSpace = - ColorSpace.parse(args[0], xref, resources); - continue; - case OPS.setStrokeColorSpace: - stateManager.state.strokeColorSpace = - ColorSpace.parse(args[0], xref, resources); - continue; - case OPS.setFillColor: - cs = stateManager.state.fillColorSpace; - args = cs.getRgb(args, 0); - fn = OPS.setFillRGBColor; - break; - case OPS.setStrokeColor: - cs = stateManager.state.strokeColorSpace; - args = cs.getRgb(args, 0); - fn = OPS.setStrokeRGBColor; - break; - case OPS.setFillGray: - stateManager.state.fillColorSpace = ColorSpace.singletons.gray; - args = ColorSpace.singletons.gray.getRgb(args, 0); - fn = OPS.setFillRGBColor; - break; - case OPS.setStrokeGray: - stateManager.state.strokeColorSpace = ColorSpace.singletons.gray; - args = ColorSpace.singletons.gray.getRgb(args, 0); - fn = OPS.setStrokeRGBColor; - break; - case OPS.setFillCMYKColor: - stateManager.state.fillColorSpace = ColorSpace.singletons.cmyk; - args = ColorSpace.singletons.cmyk.getRgb(args, 0); - fn = OPS.setFillRGBColor; - break; - case OPS.setStrokeCMYKColor: - stateManager.state.strokeColorSpace = ColorSpace.singletons.cmyk; - args = ColorSpace.singletons.cmyk.getRgb(args, 0); - fn = OPS.setStrokeRGBColor; - break; - case OPS.setFillRGBColor: - stateManager.state.fillColorSpace = ColorSpace.singletons.rgb; - args = ColorSpace.singletons.rgb.getRgb(args, 0); - break; - case OPS.setStrokeRGBColor: - stateManager.state.strokeColorSpace = ColorSpace.singletons.rgb; - args = ColorSpace.singletons.rgb.getRgb(args, 0); - break; - case OPS.setFillColorN: - cs = stateManager.state.fillColorSpace; - if (cs.name === 'Pattern') { - return self.handleColorN(operatorList, OPS.setFillColorN, - args, cs, patterns, resources, task, xref).then(function() { - next(resolve, reject); - }, reject); - } - args = cs.getRgb(args, 0); - fn = OPS.setFillRGBColor; - break; - case OPS.setStrokeColorN: - cs = stateManager.state.strokeColorSpace; - if (cs.name === 'Pattern') { - return self.handleColorN(operatorList, OPS.setStrokeColorN, - args, cs, patterns, resources, task, xref).then(function() { - next(resolve, reject); - }, reject); - } - args = cs.getRgb(args, 0); - fn = OPS.setStrokeRGBColor; - break; - - case OPS.shadingFill: - var shadingRes = resources.get('Shading'); - if (!shadingRes) { - error('No shading resource found'); - } - - var shading = shadingRes.get(args[0].name); - if (!shading) { - error('No shading object found'); - } - - var shadingFill = Pattern.parseShading(shading, null, xref, - resources, self.handler); - var patternIR = shadingFill.getIR(); - args = [patternIR]; - fn = OPS.shadingFill; - break; - case OPS.setGState: - var dictName = args[0]; - var extGState = resources.get('ExtGState'); - - if (!isDict(extGState) || !extGState.has(dictName.name)) { + var key = this.buf1.name; + this.shift(); + if (isEOF(this.buf1)) { break; } - - var gState = extGState.get(dictName.name); - return self.setGState(resources, gState, operatorList, task, - xref, stateManager).then(function() { - next(resolve, reject); - }, reject); - case OPS.moveTo: - case OPS.lineTo: - case OPS.curveTo: - case OPS.curveTo2: - case OPS.curveTo3: - case OPS.closePath: - self.buildPath(operatorList, fn, args); - continue; - case OPS.rectangle: - self.buildPath(operatorList, fn, args); - continue; - case OPS.markPoint: - case OPS.markPointProps: - case OPS.beginMarkedContent: - case OPS.beginMarkedContentProps: - case OPS.endMarkedContent: - case OPS.beginCompat: - case OPS.endCompat: - // Ignore operators where the corresponding handlers are known to - // be no-op in CanvasGraphics (display/canvas.js). This prevents - // serialization errors and is also a bit more efficient. - // We could also try to serialize all objects in a general way, - // e.g. as done in https://github.com/mozilla/pdf.js/pull/6266, - // but doing so is meaningless without knowing the semantics. - continue; - default: - // Note: Let's hope that the ignored operator does not have any - // non-serializable arguments, otherwise postMessage will throw - // "An object could not be cloned.". - } - operatorList.addOp(fn, args); - } - if (stop) { - deferred.then(function () { - next(resolve, reject); - }, reject); - return; - } - // Some PDFs don't close all restores inside object/form. - // Closing those for them. - for (i = 0, ii = preprocessor.savedStatesDepth; i < ii; i++) { - operatorList.addOp(OPS.restore, []); - } - resolve(); - }); - }, - - getTextContent: - function PartialEvaluator_getTextContent(stream, task, resources, - stateManager, - normalizeWhitespace) { - - stateManager = (stateManager || new StateManager(new TextState())); - - var WhitespaceRegexp = /\s/g; - - var textContent = { - items: [], - styles: Object.create(null) - }; - var textContentItem = { - initialized: false, - str: [], - width: 0, - height: 0, - vertical: false, - lastAdvanceWidth: 0, - lastAdvanceHeight: 0, - textAdvanceScale: 0, - spaceWidth: 0, - fakeSpaceMin: Infinity, - fakeMultiSpaceMin: Infinity, - fakeMultiSpaceMax: -0, - textRunBreakAllowed: false, - transform: null, - fontName: null - }; - var SPACE_FACTOR = 0.3; - var MULTI_SPACE_FACTOR = 1.5; - var MULTI_SPACE_FACTOR_MAX = 4; - - var self = this; - var xref = this.xref; - - resources = (xref.fetchIfRef(resources) || Dict.empty); - - // The xobj is parsed iff it's needed, e.g. if there is a `DO` cmd. - var xobjs = null; - var xobjsCache = {}; - - var preprocessor = new EvaluatorPreprocessor(stream, xref, stateManager); - - var textState; - - function ensureTextContentItem() { - if (textContentItem.initialized) { - return textContentItem; - } - var font = textState.font; - if (!(font.loadedName in textContent.styles)) { - textContent.styles[font.loadedName] = { - fontFamily: font.fallbackName, - ascent: font.ascent, - descent: font.descent, - vertical: font.vertical - }; - } - textContentItem.fontName = font.loadedName; - - // 9.4.4 Text Space Details - var tsm = [textState.fontSize * textState.textHScale, 0, - 0, textState.fontSize, - 0, textState.textRise]; - - if (font.isType3Font && - textState.fontMatrix !== FONT_IDENTITY_MATRIX && - textState.fontSize === 1) { - var glyphHeight = font.bbox[3] - font.bbox[1]; - if (glyphHeight > 0) { - glyphHeight = glyphHeight * textState.fontMatrix[3]; - tsm[3] *= glyphHeight; - } - } - - var trm = Util.transform(textState.ctm, - Util.transform(textState.textMatrix, tsm)); - textContentItem.transform = trm; - if (!font.vertical) { - textContentItem.width = 0; - textContentItem.height = Math.sqrt(trm[2] * trm[2] + trm[3] * trm[3]); - textContentItem.vertical = false; - } else { - textContentItem.width = Math.sqrt(trm[0] * trm[0] + trm[1] * trm[1]); - textContentItem.height = 0; - textContentItem.vertical = true; - } - - var a = textState.textLineMatrix[0]; - var b = textState.textLineMatrix[1]; - var scaleLineX = Math.sqrt(a * a + b * b); - a = textState.ctm[0]; - b = textState.ctm[1]; - var scaleCtmX = Math.sqrt(a * a + b * b); - textContentItem.textAdvanceScale = scaleCtmX * scaleLineX; - textContentItem.lastAdvanceWidth = 0; - textContentItem.lastAdvanceHeight = 0; - - var spaceWidth = font.spaceWidth / 1000 * textState.fontSize; - if (spaceWidth) { - textContentItem.spaceWidth = spaceWidth; - textContentItem.fakeSpaceMin = spaceWidth * SPACE_FACTOR; - textContentItem.fakeMultiSpaceMin = spaceWidth * MULTI_SPACE_FACTOR; - textContentItem.fakeMultiSpaceMax = - spaceWidth * MULTI_SPACE_FACTOR_MAX; - // It's okay for monospace fonts to fake as much space as needed. - textContentItem.textRunBreakAllowed = !font.isMonospace; - } else { - textContentItem.spaceWidth = 0; - textContentItem.fakeSpaceMin = Infinity; - textContentItem.fakeMultiSpaceMin = Infinity; - textContentItem.fakeMultiSpaceMax = 0; - textContentItem.textRunBreakAllowed = false; - } - - - textContentItem.initialized = true; - return textContentItem; - } - - function replaceWhitespace(str) { - // Replaces all whitespaces with standard spaces (0x20), to avoid - // alignment issues between the textLayer and the canvas if the text - // contains e.g. tabs (fixes issue6612.pdf). - var i = 0, ii = str.length, code; - while (i < ii && (code = str.charCodeAt(i)) >= 0x20 && code <= 0x7F) { - i++; - } - return (i < ii ? str.replace(WhitespaceRegexp, ' ') : str); - } - - function runBidiTransform(textChunk) { - var str = textChunk.str.join(''); - var bidiResult = PDFJS.bidi(str, -1, textChunk.vertical); - return { - str: (normalizeWhitespace ? replaceWhitespace(bidiResult.str) : - bidiResult.str), - dir: bidiResult.dir, - width: textChunk.width, - height: textChunk.height, - transform: textChunk.transform, - fontName: textChunk.fontName - }; - } - - function handleSetFont(fontName, fontRef) { - return self.loadFont(fontName, fontRef, xref, resources). - then(function (translated) { - textState.font = translated.font; - textState.fontMatrix = translated.font.fontMatrix || - FONT_IDENTITY_MATRIX; - }); - } - - function buildTextContentItem(chars) { - var font = textState.font; - var textChunk = ensureTextContentItem(); - var width = 0; - var height = 0; - var glyphs = font.charsToGlyphs(chars); - var defaultVMetrics = font.defaultVMetrics; - for (var i = 0; i < glyphs.length; i++) { - var glyph = glyphs[i]; - var vMetricX = null; - var vMetricY = null; - var glyphWidth = null; - if (font.vertical) { - if (glyph.vmetric) { - glyphWidth = glyph.vmetric[0]; - vMetricX = glyph.vmetric[1]; - vMetricY = glyph.vmetric[2]; - } else { - glyphWidth = glyph.width; - vMetricX = glyph.width * 0.5; - vMetricY = defaultVMetrics[2]; + dict.set(key, this.getObj(cipherTransform)); } - } else { - glyphWidth = glyph.width; - } - - var glyphUnicode = glyph.unicode; - if (NormalizedUnicodes[glyphUnicode] !== undefined) { - glyphUnicode = NormalizedUnicodes[glyphUnicode]; - } - glyphUnicode = reverseIfRtl(glyphUnicode); - - // The following will calculate the x and y of the individual glyphs. - // if (font.vertical) { - // tsm[4] -= vMetricX * Math.abs(textState.fontSize) * - // textState.fontMatrix[0]; - // tsm[5] -= vMetricY * textState.fontSize * - // textState.fontMatrix[0]; - // } - // var trm = Util.transform(textState.textMatrix, tsm); - // var pt = Util.applyTransform([trm[4], trm[5]], textState.ctm); - // var x = pt[0]; - // var y = pt[1]; - - var charSpacing = textState.charSpacing; - if (glyph.isSpace) { - var wordSpacing = textState.wordSpacing; - charSpacing += wordSpacing; - if (wordSpacing > 0) { - addFakeSpaces(wordSpacing, textChunk.str); + if (isEOF(this.buf1)) { + error('End of file inside dictionary'); } - } - var tx = 0; - var ty = 0; - if (!font.vertical) { - var w0 = glyphWidth * textState.fontMatrix[0]; - tx = (w0 * textState.fontSize + charSpacing) * - textState.textHScale; - width += tx; - } else { - var w1 = glyphWidth * textState.fontMatrix[0]; - ty = w1 * textState.fontSize + charSpacing; - height += ty; - } - textState.translateTextMatrix(tx, ty); - - textChunk.str.push(glyphUnicode); - } - - if (!font.vertical) { - textChunk.lastAdvanceWidth = width; - textChunk.width += width * textChunk.textAdvanceScale; - } else { - textChunk.lastAdvanceHeight = height; - textChunk.height += Math.abs(height * textChunk.textAdvanceScale); - } - - return textChunk; - } - - function addFakeSpaces(width, strBuf) { - if (width < textContentItem.fakeSpaceMin) { - return; - } - if (width < textContentItem.fakeMultiSpaceMin) { - strBuf.push(' '); - return; - } - var fakeSpaces = Math.round(width / textContentItem.spaceWidth); - while (fakeSpaces-- > 0) { - strBuf.push(' '); - } - } - - function flushTextContentItem() { - if (!textContentItem.initialized) { - return; - } - textContent.items.push(runBidiTransform(textContentItem)); - - textContentItem.initialized = false; - textContentItem.str.length = 0; - } - - var timeSlotManager = new TimeSlotManager(); - - return new Promise(function next(resolve, reject) { - task.ensureNotTerminated(); - timeSlotManager.reset(); - var stop, operation = {}, args = []; - while (!(stop = timeSlotManager.check())) { - // The arguments parsed by read() are not used beyond this loop, so - // we can reuse the same array on every iteration, thus avoiding - // unnecessary allocations. - args.length = 0; - operation.args = args; - if (!(preprocessor.read(operation))) { - break; - } - textState = stateManager.state; - var fn = operation.fn; - args = operation.args; - var advance; - - switch (fn | 0) { - case OPS.setFont: - flushTextContentItem(); - textState.fontSize = args[1]; - return handleSetFont(args[0].name).then(function() { - next(resolve, reject); - }, reject); - case OPS.setTextRise: - flushTextContentItem(); - textState.textRise = args[0]; - break; - case OPS.setHScale: - flushTextContentItem(); - textState.textHScale = args[0] / 100; - break; - case OPS.setLeading: - flushTextContentItem(); - textState.leading = args[0]; - break; - case OPS.moveText: - // Optimization to treat same line movement as advance - var isSameTextLine = !textState.font ? false : - ((textState.font.vertical ? args[0] : args[1]) === 0); - advance = args[0] - args[1]; - if (isSameTextLine && textContentItem.initialized && - advance > 0 && - advance <= textContentItem.fakeMultiSpaceMax) { - textState.translateTextLineMatrix(args[0], args[1]); - textContentItem.width += - (args[0] - textContentItem.lastAdvanceWidth); - textContentItem.height += - (args[1] - textContentItem.lastAdvanceHeight); - var diff = (args[0] - textContentItem.lastAdvanceWidth) - - (args[1] - textContentItem.lastAdvanceHeight); - addFakeSpaces(diff, textContentItem.str); - break; - } - - flushTextContentItem(); - textState.translateTextLineMatrix(args[0], args[1]); - textState.textMatrix = textState.textLineMatrix.slice(); - break; - case OPS.setLeadingMoveText: - flushTextContentItem(); - textState.leading = -args[1]; - textState.translateTextLineMatrix(args[0], args[1]); - textState.textMatrix = textState.textLineMatrix.slice(); - break; - case OPS.nextLine: - flushTextContentItem(); - textState.carriageReturn(); - break; - case OPS.setTextMatrix: - flushTextContentItem(); - textState.setTextMatrix(args[0], args[1], args[2], args[3], - args[4], args[5]); - textState.setTextLineMatrix(args[0], args[1], args[2], args[3], - args[4], args[5]); - break; - case OPS.setCharSpacing: - textState.charSpacing = args[0]; - break; - case OPS.setWordSpacing: - textState.wordSpacing = args[0]; - break; - case OPS.beginText: - flushTextContentItem(); - textState.textMatrix = IDENTITY_MATRIX.slice(); - textState.textLineMatrix = IDENTITY_MATRIX.slice(); - break; - case OPS.showSpacedText: - var items = args[0]; - var offset; - for (var j = 0, jj = items.length; j < jj; j++) { - if (typeof items[j] === 'string') { - buildTextContentItem(items[j]); - } else { - ensureTextContentItem(); - - // PDF Specification 5.3.2 states: - // The number is expressed in thousandths of a unit of text - // space. - // This amount is subtracted from the current horizontal or - // vertical coordinate, depending on the writing mode. - // In the default coordinate system, a positive adjustment - // has the effect of moving the next glyph painted either to - // the left or down by the given amount. - advance = items[j] * textState.fontSize / 1000; - var breakTextRun = false; - if (textState.font.vertical) { - offset = advance * - (textState.textHScale * textState.textMatrix[2] + - textState.textMatrix[3]); - textState.translateTextMatrix(0, advance); - breakTextRun = textContentItem.textRunBreakAllowed && - advance > textContentItem.fakeMultiSpaceMax; - if (!breakTextRun) { - // Value needs to be added to height to paint down. - textContentItem.height += offset; - } - } else { - advance = -advance; - offset = advance * ( - textState.textHScale * textState.textMatrix[0] + - textState.textMatrix[1]); - textState.translateTextMatrix(advance, 0); - breakTextRun = textContentItem.textRunBreakAllowed && - advance > textContentItem.fakeMultiSpaceMax; - if (!breakTextRun) { - // Value needs to be subtracted from width to paint left. - textContentItem.width += offset; - } - } - if (breakTextRun) { - flushTextContentItem(); - } else if (advance > 0) { - addFakeSpaces(advance, textContentItem.str); - } - } - } - break; - case OPS.showText: - buildTextContentItem(args[0]); - break; - case OPS.nextLineShowText: - flushTextContentItem(); - textState.carriageReturn(); - buildTextContentItem(args[0]); - break; - case OPS.nextLineSetSpacingShowText: - flushTextContentItem(); - textState.wordSpacing = args[0]; - textState.charSpacing = args[1]; - textState.carriageReturn(); - buildTextContentItem(args[2]); - break; - case OPS.paintXObject: - flushTextContentItem(); - if (args[0].code) { - break; - } - - if (!xobjs) { - xobjs = (resources.get('XObject') || Dict.empty); - } - - var name = args[0].name; - if (xobjsCache.key === name) { - if (xobjsCache.texts) { - Util.appendToArray(textContent.items, xobjsCache.texts.items); - Util.extendObj(textContent.styles, xobjsCache.texts.styles); - } - break; - } - - var xobj = xobjs.get(name); - if (!xobj) { - break; - } - assert(isStream(xobj), 'XObject should be a stream'); - - var type = xobj.dict.get('Subtype'); - assert(isName(type), - 'XObject should have a Name subtype'); - - if ('Form' !== type.name) { - xobjsCache.key = name; - xobjsCache.texts = null; - break; - } - - stateManager.save(); - var matrix = xobj.dict.get('Matrix'); - if (isArray(matrix) && matrix.length === 6) { - stateManager.transform(matrix); - } - - return self.getTextContent(xobj, task, - xobj.dict.get('Resources') || resources, stateManager, - normalizeWhitespace).then(function (formTextContent) { - Util.appendToArray(textContent.items, formTextContent.items); - Util.extendObj(textContent.styles, formTextContent.styles); - stateManager.restore(); - - xobjsCache.key = name; - xobjsCache.texts = formTextContent; - - next(resolve, reject); - }, reject); - case OPS.setGState: - flushTextContentItem(); - var dictName = args[0]; - var extGState = resources.get('ExtGState'); - - if (!isDict(extGState) || !extGState.has(dictName.name)) { - break; - } - - var gsStateMap = extGState.get(dictName.name); - var gsStateFont = null; - for (var key in gsStateMap) { - if (key === 'Font') { - assert(!gsStateFont); - gsStateFont = gsStateMap[key]; - } - } - if (gsStateFont) { - textState.fontSize = gsStateFont[1]; - return handleSetFont(gsStateFont[0]).then(function() { - next(resolve, reject); - }, reject); - } - break; - } // switch - } // while - if (stop) { - deferred.then(function () { - next(resolve, reject); - }, reject); - return; - } - flushTextContentItem(); - resolve(textContent); - }); - }, - - extractDataStructures: function - partialEvaluatorExtractDataStructures(dict, baseDict, - xref, properties) { - // 9.10.2 - var toUnicode = (dict.get('ToUnicode') || baseDict.get('ToUnicode')); - if (toUnicode) { - properties.toUnicode = this.readToUnicode(toUnicode); - } - if (properties.composite) { - // CIDSystemInfo helps to match CID to glyphs - var cidSystemInfo = dict.get('CIDSystemInfo'); - if (isDict(cidSystemInfo)) { - properties.cidSystemInfo = { - registry: cidSystemInfo.get('Registry'), - ordering: cidSystemInfo.get('Ordering'), - supplement: cidSystemInfo.get('Supplement') - }; - } - - var cidToGidMap = dict.get('CIDToGIDMap'); - if (isStream(cidToGidMap)) { - properties.cidToGidMap = this.readCidToGidMap(cidToGidMap); - } - } - - // Based on 9.6.6 of the spec the encoding can come from multiple places - // and depends on the font type. The base encoding and differences are - // read here, but the encoding that is actually used is chosen during - // glyph mapping in the font. - // TODO: Loading the built in encoding in the font would allow the - // differences to be merged in here not require us to hold on to it. - var differences = []; - var baseEncodingName = null; - var encoding; - if (dict.has('Encoding')) { - encoding = dict.get('Encoding'); - if (isDict(encoding)) { - baseEncodingName = encoding.get('BaseEncoding'); - baseEncodingName = (isName(baseEncodingName) ? - baseEncodingName.name : null); - // Load the differences between the base and original - if (encoding.has('Differences')) { - var diffEncoding = encoding.get('Differences'); - var index = 0; - for (var j = 0, jj = diffEncoding.length; j < jj; j++) { - var data = diffEncoding[j]; - if (isNum(data)) { - index = data; - } else if (isName(data)) { - differences[index++] = data.name; - } else if (isRef(data)) { - diffEncoding[j--] = xref.fetch(data); - continue; - } else { - error('Invalid entry in \'Differences\' array: ' + data); - } + // Stream objects are not allowed inside content streams or + // object streams. + if (isCmd(this.buf2, 'stream')) { + return (this.allowStreams ? + this.makeStream(dict, cipherTransform) : dict); } - } - } else if (isName(encoding)) { - baseEncodingName = encoding.name; - } else { - error('Encoding is not a Name nor a Dict'); - } - // According to table 114 if the encoding is a named encoding it must be - // one of these predefined encodings. - if ((baseEncodingName !== 'MacRomanEncoding' && - baseEncodingName !== 'MacExpertEncoding' && - baseEncodingName !== 'WinAnsiEncoding')) { - baseEncodingName = null; + this.shift(); + return dict; + default: // simple object + return buf1; } } - if (baseEncodingName) { - properties.defaultEncoding = Encodings[baseEncodingName].slice(); - } else { - encoding = (properties.type === 'TrueType' ? - Encodings.WinAnsiEncoding : Encodings.StandardEncoding); - // The Symbolic attribute can be misused for regular fonts - // Heuristic: we have to check if the font is a standard one also - if (!!(properties.flags & FontFlags.Symbolic)) { - encoding = Encodings.MacRomanEncoding; - if (!properties.file) { - if (/Symbol/i.test(properties.name)) { - encoding = Encodings.SymbolSetEncoding; - } else if (/Dingbats/i.test(properties.name)) { - encoding = Encodings.ZapfDingbatsEncoding; - } - } + if (isInt(buf1)) { // indirect reference or integer + var num = buf1; + if (isInt(this.buf1) && isCmd(this.buf2, 'R')) { + var ref = new Ref(num, this.buf1); + this.shift(); + this.shift(); + return ref; } - properties.defaultEncoding = encoding; + return num; } - properties.differences = differences; - properties.baseEncodingName = baseEncodingName; - properties.dict = dict; + if (isString(buf1)) { // string + var str = buf1; + if (cipherTransform) { + str = cipherTransform.decryptString(str); + } + return str; + } + + // simple object + return buf1; }, - - readToUnicode: function PartialEvaluator_readToUnicode(toUnicode) { - var cmap, cmapObj = toUnicode; - if (isName(cmapObj)) { - cmap = CMapFactory.create(cmapObj, - { url: PDFJS.cMapUrl, packed: PDFJS.cMapPacked }, null); - if (cmap instanceof IdentityCMap) { - return new IdentityToUnicodeMap(0, 0xFFFF); - } - return new ToUnicodeMap(cmap.getMap()); - } else if (isStream(cmapObj)) { - cmap = CMapFactory.create(cmapObj, - { url: PDFJS.cMapUrl, packed: PDFJS.cMapPacked }, null); - if (cmap instanceof IdentityCMap) { - return new IdentityToUnicodeMap(0, 0xFFFF); - } - var map = new Array(cmap.length); - // Convert UTF-16BE - // NOTE: cmap can be a sparse array, so use forEach instead of for(;;) - // to iterate over all keys. - cmap.forEach(function(charCode, token) { - var str = []; - for (var k = 0; k < token.length; k += 2) { - var w1 = (token.charCodeAt(k) << 8) | token.charCodeAt(k + 1); - if ((w1 & 0xF800) !== 0xD800) { // w1 < 0xD800 || w1 > 0xDFFF - str.push(w1); - continue; - } - k += 2; - var w2 = (token.charCodeAt(k) << 8) | token.charCodeAt(k + 1); - str.push(((w1 & 0x3ff) << 10) + (w2 & 0x3ff) + 0x10000); - } - map[charCode] = String.fromCharCode.apply(String, str); - }); - return new ToUnicodeMap(map); - } - return null; - }, - - readCidToGidMap: function PartialEvaluator_readCidToGidMap(cidToGidStream) { - // Extract the encoding from the CIDToGIDMap - var glyphsData = cidToGidStream.getBytes(); - - // Set encoding 0 to later verify the font has an encoding - var result = []; - for (var j = 0, jj = glyphsData.length; j < jj; j++) { - var glyphID = (glyphsData[j++] << 8) | glyphsData[j]; - if (glyphID === 0) { - continue; - } - var code = j >> 1; - result[code] = glyphID; - } - return result; - }, - - extractWidths: function PartialEvaluator_extractWidths(dict, xref, - descriptor, - properties) { - var glyphsWidths = []; - var defaultWidth = 0; - var glyphsVMetrics = []; - var defaultVMetrics; - var i, ii, j, jj, start, code, widths; - if (properties.composite) { - defaultWidth = dict.get('DW') || 1000; - - widths = dict.get('W'); - if (widths) { - for (i = 0, ii = widths.length; i < ii; i++) { - start = widths[i++]; - code = xref.fetchIfRef(widths[i]); - if (isArray(code)) { - for (j = 0, jj = code.length; j < jj; j++) { - glyphsWidths[start++] = code[j]; - } - } else { - var width = widths[++i]; - for (j = start; j <= code; j++) { - glyphsWidths[j] = width; - } - } - } - } - - if (properties.vertical) { - var vmetrics = (dict.get('DW2') || [880, -1000]); - defaultVMetrics = [vmetrics[1], defaultWidth * 0.5, vmetrics[0]]; - vmetrics = dict.get('W2'); - if (vmetrics) { - for (i = 0, ii = vmetrics.length; i < ii; i++) { - start = vmetrics[i++]; - code = xref.fetchIfRef(vmetrics[i]); - if (isArray(code)) { - for (j = 0, jj = code.length; j < jj; j++) { - glyphsVMetrics[start++] = [code[j++], code[j++], code[j]]; - } - } else { - var vmetric = [vmetrics[++i], vmetrics[++i], vmetrics[++i]]; - for (j = start; j <= code; j++) { - glyphsVMetrics[j] = vmetric; - } - } - } - } - } - } else { - var firstChar = properties.firstChar; - widths = dict.get('Widths'); - if (widths) { - j = firstChar; - for (i = 0, ii = widths.length; i < ii; i++) { - glyphsWidths[j++] = widths[i]; - } - defaultWidth = (parseFloat(descriptor.get('MissingWidth')) || 0); - } else { - // Trying get the BaseFont metrics (see comment above). - var baseFontName = dict.get('BaseFont'); - if (isName(baseFontName)) { - var metrics = this.getBaseFontMetrics(baseFontName.name); - - glyphsWidths = this.buildCharCodeToWidth(metrics.widths, - properties); - defaultWidth = metrics.defaultWidth; - } - } - } - - // Heuristic: detection of monospace font by checking all non-zero widths - var isMonospace = true; - var firstWidth = defaultWidth; - for (var glyph in glyphsWidths) { - var glyphWidth = glyphsWidths[glyph]; - if (!glyphWidth) { - continue; - } - if (!firstWidth) { - firstWidth = glyphWidth; - continue; - } - if (firstWidth !== glyphWidth) { - isMonospace = false; - break; - } - } - if (isMonospace) { - properties.flags |= FontFlags.FixedPitch; - } - - properties.defaultWidth = defaultWidth; - properties.widths = glyphsWidths; - properties.defaultVMetrics = defaultVMetrics; - properties.vmetrics = glyphsVMetrics; - }, - - isSerifFont: function PartialEvaluator_isSerifFont(baseFontName) { - // Simulating descriptor flags attribute - var fontNameWoStyle = baseFontName.split('-')[0]; - return (fontNameWoStyle in serifFonts) || - (fontNameWoStyle.search(/serif/gi) !== -1); - }, - - getBaseFontMetrics: function PartialEvaluator_getBaseFontMetrics(name) { - var defaultWidth = 0; - var widths = []; - var monospace = false; - var lookupName = (stdFontMap[name] || name); - - if (!(lookupName in Metrics)) { - // Use default fonts for looking up font metrics if the passed - // font is not a base font - if (this.isSerifFont(name)) { - lookupName = 'Times-Roman'; - } else { - lookupName = 'Helvetica'; - } - } - var glyphWidths = Metrics[lookupName]; - - if (isNum(glyphWidths)) { - defaultWidth = glyphWidths; - monospace = true; - } else { - widths = glyphWidths; - } - - return { - defaultWidth: defaultWidth, - monospace: monospace, - widths: widths - }; - }, - - buildCharCodeToWidth: - function PartialEvaluator_bulildCharCodeToWidth(widthsByGlyphName, - properties) { - var widths = Object.create(null); - var differences = properties.differences; - var encoding = properties.defaultEncoding; - for (var charCode = 0; charCode < 256; charCode++) { - if (charCode in differences && - widthsByGlyphName[differences[charCode]]) { - widths[charCode] = widthsByGlyphName[differences[charCode]]; - continue; - } - if (charCode in encoding && widthsByGlyphName[encoding[charCode]]) { - widths[charCode] = widthsByGlyphName[encoding[charCode]]; - continue; - } - } - return widths; - }, - - preEvaluateFont: function PartialEvaluator_preEvaluateFont(dict, xref) { - var baseDict = dict; - var type = dict.get('Subtype'); - assert(isName(type), 'invalid font Subtype'); - - var composite = false; - var uint8array; - if (type.name === 'Type0') { - // If font is a composite - // - get the descendant font - // - set the type according to the descendant font - // - get the FontDescriptor from the descendant font - var df = dict.get('DescendantFonts'); - if (!df) { - error('Descendant fonts are not specified'); - } - dict = (isArray(df) ? xref.fetchIfRef(df[0]) : df); - - type = dict.get('Subtype'); - assert(isName(type), 'invalid font Subtype'); - composite = true; - } - - var descriptor = dict.get('FontDescriptor'); - if (descriptor) { - var hash = new MurmurHash3_64(); - var encoding = baseDict.getRaw('Encoding'); - if (isName(encoding)) { - hash.update(encoding.name); - } else if (isRef(encoding)) { - hash.update(encoding.num + '_' + encoding.gen); - } else if (isDict(encoding)) { - var keys = encoding.getKeys(); - for (var i = 0, ii = keys.length; i < ii; i++) { - var entry = encoding.getRaw(keys[i]); - if (isName(entry)) { - hash.update(entry.name); - } else if (isRef(entry)) { - hash.update(entry.num + '_' + entry.gen); - } else if (isArray(entry)) { // 'Differences' entry. - // Ideally we should check the contents of the array, but to avoid - // parsing it here and then again in |extractDataStructures|, - // we only use the array length for now (fixes bug1157493.pdf). - hash.update(entry.length.toString()); - } - } - } - - var toUnicode = dict.get('ToUnicode') || baseDict.get('ToUnicode'); - if (isStream(toUnicode)) { - var stream = toUnicode.str || toUnicode; - uint8array = stream.buffer ? - new Uint8Array(stream.buffer.buffer, 0, stream.bufferLength) : - new Uint8Array(stream.bytes.buffer, - stream.start, stream.end - stream.start); - hash.update(uint8array); - - } else if (isName(toUnicode)) { - hash.update(toUnicode.name); - } - - var widths = dict.get('Widths') || baseDict.get('Widths'); - if (widths) { - uint8array = new Uint8Array(new Uint32Array(widths).buffer); - hash.update(uint8array); - } - } - - return { - descriptor: descriptor, - dict: dict, - baseDict: baseDict, - composite: composite, - type: type.name, - hash: hash ? hash.hexdigest() : '' - }; - }, - - translateFont: function PartialEvaluator_translateFont(preEvaluatedFont, - xref) { - var baseDict = preEvaluatedFont.baseDict; - var dict = preEvaluatedFont.dict; - var composite = preEvaluatedFont.composite; - var descriptor = preEvaluatedFont.descriptor; - var type = preEvaluatedFont.type; - var maxCharIndex = (composite ? 0xFFFF : 0xFF); - var properties; - - if (!descriptor) { - if (type === 'Type3') { - // FontDescriptor is only required for Type3 fonts when the document - // is a tagged pdf. Create a barbebones one to get by. - descriptor = new Dict(null); - descriptor.set('FontName', Name.get(type)); - descriptor.set('FontBBox', dict.get('FontBBox')); - } else { - // Before PDF 1.5 if the font was one of the base 14 fonts, having a - // FontDescriptor was not required. - // This case is here for compatibility. - var baseFontName = dict.get('BaseFont'); - if (!isName(baseFontName)) { - error('Base font is not specified'); - } - - // Using base font name as a font name. - baseFontName = baseFontName.name.replace(/[,_]/g, '-'); - var metrics = this.getBaseFontMetrics(baseFontName); - - // Simulating descriptor flags attribute - var fontNameWoStyle = baseFontName.split('-')[0]; - var flags = - (this.isSerifFont(fontNameWoStyle) ? FontFlags.Serif : 0) | - (metrics.monospace ? FontFlags.FixedPitch : 0) | - (symbolsFonts[fontNameWoStyle] ? FontFlags.Symbolic : - FontFlags.Nonsymbolic); - - properties = { - type: type, - name: baseFontName, - widths: metrics.widths, - defaultWidth: metrics.defaultWidth, - flags: flags, - firstChar: 0, - lastChar: maxCharIndex - }; - this.extractDataStructures(dict, dict, xref, properties); - properties.widths = this.buildCharCodeToWidth(metrics.widths, - properties); - return new Font(baseFontName, null, properties); - } - } - - // According to the spec if 'FontDescriptor' is declared, 'FirstChar', - // 'LastChar' and 'Widths' should exist too, but some PDF encoders seem - // to ignore this rule when a variant of a standart font is used. - // TODO Fill the width array depending on which of the base font this is - // a variant. - var firstChar = (dict.get('FirstChar') || 0); - var lastChar = (dict.get('LastChar') || maxCharIndex); - - var fontName = descriptor.get('FontName'); - var baseFont = dict.get('BaseFont'); - // Some bad PDFs have a string as the font name. - if (isString(fontName)) { - fontName = Name.get(fontName); - } - if (isString(baseFont)) { - baseFont = Name.get(baseFont); - } - - if (type !== 'Type3') { - var fontNameStr = fontName && fontName.name; - var baseFontStr = baseFont && baseFont.name; - if (fontNameStr !== baseFontStr) { - info('The FontDescriptor\'s FontName is "' + fontNameStr + - '" but should be the same as the Font\'s BaseFont "' + - baseFontStr + '"'); - // Workaround for cases where e.g. fontNameStr = 'Arial' and - // baseFontStr = 'Arial,Bold' (needed when no font file is embedded). - if (fontNameStr && baseFontStr && - baseFontStr.indexOf(fontNameStr) === 0) { - fontName = baseFont; - } - } - } - fontName = (fontName || baseFont); - - assert(isName(fontName), 'invalid font name'); - - var fontFile = descriptor.get('FontFile', 'FontFile2', 'FontFile3'); - if (fontFile) { - if (fontFile.dict) { - var subtype = fontFile.dict.get('Subtype'); - if (subtype) { - subtype = subtype.name; - } - var length1 = fontFile.dict.get('Length1'); - var length2 = fontFile.dict.get('Length2'); - } - } - - properties = { - type: type, - name: fontName.name, - subtype: subtype, - file: fontFile, - length1: length1, - length2: length2, - loadedName: baseDict.loadedName, - composite: composite, - wideChars: composite, - fixedPitch: false, - fontMatrix: (dict.get('FontMatrix') || FONT_IDENTITY_MATRIX), - firstChar: firstChar || 0, - lastChar: (lastChar || maxCharIndex), - bbox: descriptor.get('FontBBox'), - ascent: descriptor.get('Ascent'), - descent: descriptor.get('Descent'), - xHeight: descriptor.get('XHeight'), - capHeight: descriptor.get('CapHeight'), - flags: descriptor.get('Flags'), - italicAngle: descriptor.get('ItalicAngle'), - coded: false - }; - - if (composite) { - var cidEncoding = baseDict.get('Encoding'); - if (isName(cidEncoding)) { - properties.cidEncoding = cidEncoding.name; - } - properties.cMap = CMapFactory.create(cidEncoding, - { url: PDFJS.cMapUrl, packed: PDFJS.cMapPacked }, null); - properties.vertical = properties.cMap.vertical; - } - this.extractDataStructures(dict, baseDict, xref, properties); - this.extractWidths(dict, xref, descriptor, properties); - - if (type === 'Type3') { - properties.isType3Font = true; - } - - return new Font(fontName.name, fontFile, properties); - } - }; - - return PartialEvaluator; -})(); - -var TranslatedFont = (function TranslatedFontClosure() { - function TranslatedFont(loadedName, font, dict) { - this.loadedName = loadedName; - this.font = font; - this.dict = dict; - this.type3Loaded = null; - this.sent = false; - } - TranslatedFont.prototype = { - send: function (handler) { - if (this.sent) { - return; - } - var fontData = this.font.exportData(); - handler.send('commonobj', [ - this.loadedName, - 'Font', - fontData - ]); - this.sent = true; - }, - loadType3Data: function (evaluator, resources, parentOperatorList, task) { - assert(this.font.isType3Font); - - if (this.type3Loaded) { - return this.type3Loaded; - } - - var translatedFont = this.font; - var loadCharProcsPromise = Promise.resolve(); - var charProcs = this.dict.get('CharProcs').getAll(); - var fontResources = this.dict.get('Resources') || resources; - var charProcKeys = Object.keys(charProcs); - var charProcOperatorList = {}; - for (var i = 0, n = charProcKeys.length; i < n; ++i) { - loadCharProcsPromise = loadCharProcsPromise.then(function (key) { - var glyphStream = charProcs[key]; - var operatorList = new OperatorList(); - return evaluator.getOperatorList(glyphStream, task, fontResources, - operatorList).then(function () { - charProcOperatorList[key] = operatorList.getIR(); - - // Add the dependencies to the parent operator list so they are - // resolved before sub operator list is executed synchronously. - parentOperatorList.addDependencies(operatorList.dependencies); - }, function (reason) { - warn('Type3 font resource \"' + key + '\" is not available'); - var operatorList = new OperatorList(); - charProcOperatorList[key] = operatorList.getIR(); - }); - }.bind(this, charProcKeys[i])); - } - this.type3Loaded = loadCharProcsPromise.then(function () { - translatedFont.charProcOperatorList = charProcOperatorList; - }); - return this.type3Loaded; - } - }; - return TranslatedFont; -})(); - -var OperatorList = (function OperatorListClosure() { - var CHUNK_SIZE = 1000; - var CHUNK_SIZE_ABOUT = CHUNK_SIZE - 5; // close to chunk size - - function getTransfers(queue) { - var transfers = []; - var fnArray = queue.fnArray, argsArray = queue.argsArray; - for (var i = 0, ii = queue.length; i < ii; i++) { - switch (fnArray[i]) { - case OPS.paintInlineImageXObject: - case OPS.paintInlineImageXObjectGroup: - case OPS.paintImageMaskXObject: - var arg = argsArray[i][0]; // first param in imgData - if (!arg.cached) { - transfers.push(arg.data.buffer); - } - break; - } - } - return transfers; - } - - function OperatorList(intent, messageHandler, pageIndex) { - this.messageHandler = messageHandler; - this.fnArray = []; - this.argsArray = []; - this.dependencies = {}; - this._totalLength = 0; - this.pageIndex = pageIndex; - this.intent = intent; - } - - OperatorList.prototype = { - get length() { - return this.argsArray.length; - }, - /** - * @returns {number} The total length of the entire operator list, - * since `this.length === 0` after flushing. + * Find the end of the stream by searching for the /EI\s/. + * @returns {number} The inline stream length. */ - get totalLength() { - return (this._totalLength + this.length); + findDefaultInlineStreamEnd: + function Parser_findDefaultInlineStreamEnd(stream) { + var E = 0x45, I = 0x49, SPACE = 0x20, LF = 0xA, CR = 0xD; + var startPos = stream.pos, state = 0, ch, i, n, followingBytes; + while ((ch = stream.getByte()) !== -1) { + if (state === 0) { + state = (ch === E) ? 1 : 0; + } else if (state === 1) { + state = (ch === I) ? 2 : 0; + } else { + assert(state === 2); + if (ch === SPACE || ch === LF || ch === CR) { + // Let's check the next five bytes are ASCII... just be sure. + n = 5; + followingBytes = stream.peekBytes(n); + for (i = 0; i < n; i++) { + ch = followingBytes[i]; + if (ch !== LF && ch !== CR && (ch < SPACE || ch > 0x7F)) { + // Not a LF, CR, SPACE or any visible ASCII character, i.e. + // it's binary stuff. Resetting the state. + state = 0; + break; + } + } + if (state === 2) { + break; // Finished! + } + } else { + state = 0; + } + } + } + return ((stream.pos - 4) - startPos); }, + /** + * Find the EOI (end-of-image) marker 0xFFD9 of the stream. + * @returns {number} The inline stream length. + */ + findDCTDecodeInlineStreamEnd: + function Parser_findDCTDecodeInlineStreamEnd(stream) { + var startPos = stream.pos, foundEOI = false, b, markerLength, length; + while ((b = stream.getByte()) !== -1) { + if (b !== 0xFF) { // Not a valid marker. + continue; + } + switch (stream.getByte()) { + case 0x00: // Byte stuffing. + // 0xFF00 appears to be a very common byte sequence in JPEG images. + break; - addOp: function(fn, args) { - this.fnArray.push(fn); - this.argsArray.push(args); - if (this.messageHandler) { - if (this.fnArray.length >= CHUNK_SIZE) { - this.flush(); - } else if (this.fnArray.length >= CHUNK_SIZE_ABOUT && - (fn === OPS.restore || fn === OPS.endText)) { - // heuristic to flush on boundary of restore or endText - this.flush(); + case 0xFF: // Fill byte. + // Avoid skipping a valid marker, resetting the stream position. + stream.skip(-1); + break; + + case 0xD9: // EOI + foundEOI = true; + break; + + case 0xC0: // SOF0 + case 0xC1: // SOF1 + case 0xC2: // SOF2 + case 0xC3: // SOF3 + + case 0xC5: // SOF5 + case 0xC6: // SOF6 + case 0xC7: // SOF7 + + case 0xC9: // SOF9 + case 0xCA: // SOF10 + case 0xCB: // SOF11 + + case 0xCD: // SOF13 + case 0xCE: // SOF14 + case 0xCF: // SOF15 + + case 0xC4: // DHT + case 0xCC: // DAC + + case 0xDA: // SOS + case 0xDB: // DQT + case 0xDC: // DNL + case 0xDD: // DRI + case 0xDE: // DHP + case 0xDF: // EXP + + case 0xE0: // APP0 + case 0xE1: // APP1 + case 0xE2: // APP2 + case 0xE3: // APP3 + case 0xE4: // APP4 + case 0xE5: // APP5 + case 0xE6: // APP6 + case 0xE7: // APP7 + case 0xE8: // APP8 + case 0xE9: // APP9 + case 0xEA: // APP10 + case 0xEB: // APP11 + case 0xEC: // APP12 + case 0xED: // APP13 + case 0xEE: // APP14 + case 0xEF: // APP15 + + case 0xFE: // COM + // The marker should be followed by the length of the segment. + markerLength = stream.getUint16(); + if (markerLength > 2) { + // |markerLength| contains the byte length of the marker segment, + // including its own length (2 bytes) and excluding the marker. + stream.skip(markerLength - 2); // Jump to the next marker. + } else { + // The marker length is invalid, resetting the stream position. + stream.skip(-2); + } + break; + } + if (foundEOI) { + break; + } + } + length = stream.pos - startPos; + if (b === -1) { + warn('Inline DCTDecode image stream: ' + + 'EOI marker not found, searching for /EI/ instead.'); + stream.skip(-length); // Reset the stream position. + return this.findDefaultInlineStreamEnd(stream); + } + this.inlineStreamSkipEI(stream); + return length; + }, + /** + * Find the EOD (end-of-data) marker '~>' (i.e. TILDE + GT) of the stream. + * @returns {number} The inline stream length. + */ + findASCII85DecodeInlineStreamEnd: + function Parser_findASCII85DecodeInlineStreamEnd(stream) { + var TILDE = 0x7E, GT = 0x3E; + var startPos = stream.pos, ch, length; + while ((ch = stream.getByte()) !== -1) { + if (ch === TILDE && stream.peekByte() === GT) { + stream.skip(); + break; + } + } + length = stream.pos - startPos; + if (ch === -1) { + warn('Inline ASCII85Decode image stream: ' + + 'EOD marker not found, searching for /EI/ instead.'); + stream.skip(-length); // Reset the stream position. + return this.findDefaultInlineStreamEnd(stream); + } + this.inlineStreamSkipEI(stream); + return length; + }, + /** + * Find the EOD (end-of-data) marker '>' (i.e. GT) of the stream. + * @returns {number} The inline stream length. + */ + findASCIIHexDecodeInlineStreamEnd: + function Parser_findASCIIHexDecodeInlineStreamEnd(stream) { + var GT = 0x3E; + var startPos = stream.pos, ch, length; + while ((ch = stream.getByte()) !== -1) { + if (ch === GT) { + break; + } + } + length = stream.pos - startPos; + if (ch === -1) { + warn('Inline ASCIIHexDecode image stream: ' + + 'EOD marker not found, searching for /EI/ instead.'); + stream.skip(-length); // Reset the stream position. + return this.findDefaultInlineStreamEnd(stream); + } + this.inlineStreamSkipEI(stream); + return length; + }, + /** + * Skip over the /EI/ for streams where we search for an EOD marker. + */ + inlineStreamSkipEI: function Parser_inlineStreamSkipEI(stream) { + var E = 0x45, I = 0x49; + var state = 0, ch; + while ((ch = stream.getByte()) !== -1) { + if (state === 0) { + state = (ch === E) ? 1 : 0; + } else if (state === 1) { + state = (ch === I) ? 2 : 0; + } else if (state === 2) { + break; } } }, + makeInlineImage: function Parser_makeInlineImage(cipherTransform) { + var lexer = this.lexer; + var stream = lexer.stream; - addDependency: function(dependency) { - if (dependency in this.dependencies) { - return; + // Parse dictionary. + var dict = new Dict(this.xref); + while (!isCmd(this.buf1, 'ID') && !isEOF(this.buf1)) { + if (!isName(this.buf1)) { + error('Dictionary key must be a name object'); + } + var key = this.buf1.name; + this.shift(); + if (isEOF(this.buf1)) { + break; + } + dict.set(key, this.getObj(cipherTransform)); } - this.dependencies[dependency] = true; - this.addOp(OPS.dependency, [dependency]); - }, - addDependencies: function(dependencies) { - for (var key in dependencies) { - this.addDependency(key); + // Extract the name of the first (i.e. the current) image filter. + var filter = dict.get('Filter', 'F'), filterName; + if (isName(filter)) { + filterName = filter.name; + } else if (isArray(filter) && isName(filter[0])) { + filterName = filter[0].name; } - }, - addOpList: function(opList) { - Util.extendObj(this.dependencies, opList.dependencies); - for (var i = 0, ii = opList.length; i < ii; i++) { - this.addOp(opList.fnArray[i], opList.argsArray[i]); + // Parse image stream. + var startPos = stream.pos, length, i, ii; + if (filterName === 'DCTDecode' || filterName === 'DCT') { + length = this.findDCTDecodeInlineStreamEnd(stream); + } else if (filterName === 'ASCII85Decide' || filterName === 'A85') { + length = this.findASCII85DecodeInlineStreamEnd(stream); + } else if (filterName === 'ASCIIHexDecode' || filterName === 'AHx') { + length = this.findASCIIHexDecodeInlineStreamEnd(stream); + } else { + length = this.findDefaultInlineStreamEnd(stream); } - }, + var imageStream = stream.makeSubStream(startPos, length, dict); - getIR: function() { - return { - fnArray: this.fnArray, - argsArray: this.argsArray, - length: this.length - }; - }, + // Cache all images below the MAX_LENGTH_TO_CACHE threshold by their + // adler32 checksum. + var adler32; + if (length < MAX_LENGTH_TO_CACHE) { + var imageBytes = imageStream.getBytes(); + imageStream.reset(); - flush: function(lastChunk) { - if (this.intent !== 'oplist') { - new QueueOptimizer().optimize(this); + var a = 1; + var b = 0; + for (i = 0, ii = imageBytes.length; i < ii; ++i) { + // No modulo required in the loop if imageBytes.length < 5552. + a += imageBytes[i] & 0xff; + b += a; + } + adler32 = ((b % 65521) << 16) | (a % 65521); + + if (this.imageCache.adler32 === adler32) { + this.buf2 = Cmd.get('EI'); + this.shift(); + + this.imageCache[adler32].reset(); + return this.imageCache[adler32]; + } } - var transfers = getTransfers(this); - var length = this.length; - this._totalLength += length; - this.messageHandler.send('RenderPageChunk', { - operatorList: { - fnArray: this.fnArray, - argsArray: this.argsArray, - lastChunk: lastChunk, - length: length - }, - pageIndex: this.pageIndex, - intent: this.intent - }, transfers); - this.dependencies = {}; - this.fnArray.length = 0; - this.argsArray.length = 0; - } - }; - - return OperatorList; -})(); - -var StateManager = (function StateManagerClosure() { - function StateManager(initialState) { - this.state = initialState; - this.stateStack = []; - } - StateManager.prototype = { - save: function () { - var old = this.state; - this.stateStack.push(this.state); - this.state = old.clone(); - }, - restore: function () { - var prev = this.stateStack.pop(); - if (prev) { - this.state = prev; + if (cipherTransform) { + imageStream = cipherTransform.createStream(imageStream, length); } + + imageStream = this.filter(imageStream, dict, length); + imageStream.dict = dict; + if (adler32 !== undefined) { + imageStream.cacheKey = 'inline_' + length + '_' + adler32; + this.imageCache[adler32] = imageStream; + } + + this.buf2 = Cmd.get('EI'); + this.shift(); + + return imageStream; }, - transform: function (args) { - this.state.ctm = Util.transform(this.state.ctm, args); - } - }; - return StateManager; -})(); + makeStream: function Parser_makeStream(dict, cipherTransform) { + var lexer = this.lexer; + var stream = lexer.stream; -var TextState = (function TextStateClosure() { - function TextState() { - this.ctm = new Float32Array(IDENTITY_MATRIX); - this.fontSize = 0; - this.font = null; - this.fontMatrix = FONT_IDENTITY_MATRIX; - this.textMatrix = IDENTITY_MATRIX.slice(); - this.textLineMatrix = IDENTITY_MATRIX.slice(); - this.charSpacing = 0; - this.wordSpacing = 0; - this.leading = 0; - this.textHScale = 1; - this.textRise = 0; - } + // get stream start position + lexer.skipToNextLine(); + var pos = stream.pos - 1; - TextState.prototype = { - setTextMatrix: function TextState_setTextMatrix(a, b, c, d, e, f) { - var m = this.textMatrix; - m[0] = a; m[1] = b; m[2] = c; m[3] = d; m[4] = e; m[5] = f; - }, - setTextLineMatrix: function TextState_setTextMatrix(a, b, c, d, e, f) { - var m = this.textLineMatrix; - m[0] = a; m[1] = b; m[2] = c; m[3] = d; m[4] = e; m[5] = f; - }, - translateTextMatrix: function TextState_translateTextMatrix(x, y) { - var m = this.textMatrix; - m[4] = m[0] * x + m[2] * y + m[4]; - m[5] = m[1] * x + m[3] * y + m[5]; - }, - translateTextLineMatrix: function TextState_translateTextMatrix(x, y) { - var m = this.textLineMatrix; - m[4] = m[0] * x + m[2] * y + m[4]; - m[5] = m[1] * x + m[3] * y + m[5]; - }, - calcRenderMatrix: function TextState_calcRendeMatrix(ctm) { - // 9.4.4 Text Space Details - var tsm = [this.fontSize * this.textHScale, 0, - 0, this.fontSize, - 0, this.textRise]; - return Util.transform(ctm, Util.transform(this.textMatrix, tsm)); - }, - carriageReturn: function TextState_carriageReturn() { - this.translateTextLineMatrix(0, -this.leading); - this.textMatrix = this.textLineMatrix.slice(); - }, - clone: function TextState_clone() { - var clone = Object.create(this); - clone.textMatrix = this.textMatrix.slice(); - clone.textLineMatrix = this.textLineMatrix.slice(); - clone.fontMatrix = this.fontMatrix.slice(); - return clone; - } - }; - return TextState; -})(); + // get length + var length = dict.get('Length'); + if (!isInt(length)) { + info('Bad ' + length + ' attribute in stream'); + length = 0; + } -var EvalState = (function EvalStateClosure() { - function EvalState() { - this.ctm = new Float32Array(IDENTITY_MATRIX); - this.font = null; - this.textRenderingMode = TextRenderingMode.FILL; - this.fillColorSpace = ColorSpace.singletons.gray; - this.strokeColorSpace = ColorSpace.singletons.gray; - } - EvalState.prototype = { - clone: function CanvasExtraState_clone() { - return Object.create(this); - }, - }; - return EvalState; -})(); + // skip over the stream data + stream.pos = pos + length; + lexer.nextChar(); -var EvaluatorPreprocessor = (function EvaluatorPreprocessorClosure() { - // Specifies properties for each command - // - // If variableArgs === true: [0, `numArgs`] expected - // If variableArgs === false: exactly `numArgs` expected - var OP_MAP = { - // Graphic state - w: { id: OPS.setLineWidth, numArgs: 1, variableArgs: false }, - J: { id: OPS.setLineCap, numArgs: 1, variableArgs: false }, - j: { id: OPS.setLineJoin, numArgs: 1, variableArgs: false }, - M: { id: OPS.setMiterLimit, numArgs: 1, variableArgs: false }, - d: { id: OPS.setDash, numArgs: 2, variableArgs: false }, - ri: { id: OPS.setRenderingIntent, numArgs: 1, variableArgs: false }, - i: { id: OPS.setFlatness, numArgs: 1, variableArgs: false }, - gs: { id: OPS.setGState, numArgs: 1, variableArgs: false }, - q: { id: OPS.save, numArgs: 0, variableArgs: false }, - Q: { id: OPS.restore, numArgs: 0, variableArgs: false }, - cm: { id: OPS.transform, numArgs: 6, variableArgs: false }, - - // Path - m: { id: OPS.moveTo, numArgs: 2, variableArgs: false }, - l: { id: OPS.lineTo, numArgs: 2, variableArgs: false }, - c: { id: OPS.curveTo, numArgs: 6, variableArgs: false }, - v: { id: OPS.curveTo2, numArgs: 4, variableArgs: false }, - y: { id: OPS.curveTo3, numArgs: 4, variableArgs: false }, - h: { id: OPS.closePath, numArgs: 0, variableArgs: false }, - re: { id: OPS.rectangle, numArgs: 4, variableArgs: false }, - S: { id: OPS.stroke, numArgs: 0, variableArgs: false }, - s: { id: OPS.closeStroke, numArgs: 0, variableArgs: false }, - f: { id: OPS.fill, numArgs: 0, variableArgs: false }, - F: { id: OPS.fill, numArgs: 0, variableArgs: false }, - 'f*': { id: OPS.eoFill, numArgs: 0, variableArgs: false }, - B: { id: OPS.fillStroke, numArgs: 0, variableArgs: false }, - 'B*': { id: OPS.eoFillStroke, numArgs: 0, variableArgs: false }, - b: { id: OPS.closeFillStroke, numArgs: 0, variableArgs: false }, - 'b*': { id: OPS.closeEOFillStroke, numArgs: 0, variableArgs: false }, - n: { id: OPS.endPath, numArgs: 0, variableArgs: false }, - - // Clipping - W: { id: OPS.clip, numArgs: 0, variableArgs: false }, - 'W*': { id: OPS.eoClip, numArgs: 0, variableArgs: false }, - - // Text - BT: { id: OPS.beginText, numArgs: 0, variableArgs: false }, - ET: { id: OPS.endText, numArgs: 0, variableArgs: false }, - Tc: { id: OPS.setCharSpacing, numArgs: 1, variableArgs: false }, - Tw: { id: OPS.setWordSpacing, numArgs: 1, variableArgs: false }, - Tz: { id: OPS.setHScale, numArgs: 1, variableArgs: false }, - TL: { id: OPS.setLeading, numArgs: 1, variableArgs: false }, - Tf: { id: OPS.setFont, numArgs: 2, variableArgs: false }, - Tr: { id: OPS.setTextRenderingMode, numArgs: 1, variableArgs: false }, - Ts: { id: OPS.setTextRise, numArgs: 1, variableArgs: false }, - Td: { id: OPS.moveText, numArgs: 2, variableArgs: false }, - TD: { id: OPS.setLeadingMoveText, numArgs: 2, variableArgs: false }, - Tm: { id: OPS.setTextMatrix, numArgs: 6, variableArgs: false }, - 'T*': { id: OPS.nextLine, numArgs: 0, variableArgs: false }, - Tj: { id: OPS.showText, numArgs: 1, variableArgs: false }, - TJ: { id: OPS.showSpacedText, numArgs: 1, variableArgs: false }, - '\'': { id: OPS.nextLineShowText, numArgs: 1, variableArgs: false }, - '"': { id: OPS.nextLineSetSpacingShowText, numArgs: 3, - variableArgs: false }, - - // Type3 fonts - d0: { id: OPS.setCharWidth, numArgs: 2, variableArgs: false }, - d1: { id: OPS.setCharWidthAndBounds, numArgs: 6, variableArgs: false }, - - // Color - CS: { id: OPS.setStrokeColorSpace, numArgs: 1, variableArgs: false }, - cs: { id: OPS.setFillColorSpace, numArgs: 1, variableArgs: false }, - SC: { id: OPS.setStrokeColor, numArgs: 4, variableArgs: true }, - SCN: { id: OPS.setStrokeColorN, numArgs: 33, variableArgs: true }, - sc: { id: OPS.setFillColor, numArgs: 4, variableArgs: true }, - scn: { id: OPS.setFillColorN, numArgs: 33, variableArgs: true }, - G: { id: OPS.setStrokeGray, numArgs: 1, variableArgs: false }, - g: { id: OPS.setFillGray, numArgs: 1, variableArgs: false }, - RG: { id: OPS.setStrokeRGBColor, numArgs: 3, variableArgs: false }, - rg: { id: OPS.setFillRGBColor, numArgs: 3, variableArgs: false }, - K: { id: OPS.setStrokeCMYKColor, numArgs: 4, variableArgs: false }, - k: { id: OPS.setFillCMYKColor, numArgs: 4, variableArgs: false }, - - // Shading - sh: { id: OPS.shadingFill, numArgs: 1, variableArgs: false }, - - // Images - BI: { id: OPS.beginInlineImage, numArgs: 0, variableArgs: false }, - ID: { id: OPS.beginImageData, numArgs: 0, variableArgs: false }, - EI: { id: OPS.endInlineImage, numArgs: 1, variableArgs: false }, - - // XObjects - Do: { id: OPS.paintXObject, numArgs: 1, variableArgs: false }, - MP: { id: OPS.markPoint, numArgs: 1, variableArgs: false }, - DP: { id: OPS.markPointProps, numArgs: 2, variableArgs: false }, - BMC: { id: OPS.beginMarkedContent, numArgs: 1, variableArgs: false }, - BDC: { id: OPS.beginMarkedContentProps, numArgs: 2, - variableArgs: false }, - EMC: { id: OPS.endMarkedContent, numArgs: 0, variableArgs: false }, - - // Compatibility - BX: { id: OPS.beginCompat, numArgs: 0, variableArgs: false }, - EX: { id: OPS.endCompat, numArgs: 0, variableArgs: false }, - - // (reserved partial commands for the lexer) - BM: null, - BD: null, - 'true': null, - fa: null, - fal: null, - fals: null, - 'false': null, - nu: null, - nul: null, - 'null': null - }; - - function EvaluatorPreprocessor(stream, xref, stateManager) { - // TODO(mduan): pass array of knownCommands rather than OP_MAP - // dictionary - this.parser = new Parser(new Lexer(stream, OP_MAP), false, xref); - this.stateManager = stateManager; - this.nonProcessedArgs = []; - } - - EvaluatorPreprocessor.prototype = { - get savedStatesDepth() { - return this.stateManager.stateStack.length; - }, - - // |operation| is an object with two fields: - // - // - |fn| is an out param. - // - // - |args| is an inout param. On entry, it should have one of two values. - // - // - An empty array. This indicates that the caller is providing the - // array in which the args will be stored in. The caller should use - // this value if it can reuse a single array for each call to read(). - // - // - |null|. This indicates that the caller needs this function to create - // the array in which any args are stored in. If there are zero args, - // this function will leave |operation.args| as |null| (thus avoiding - // allocations that would occur if we used an empty array to represent - // zero arguments). Otherwise, it will replace |null| with a new array - // containing the arguments. The caller should use this value if it - // cannot reuse an array for each call to read(). - // - // These two modes are present because this function is very hot and so - // avoiding allocations where possible is worthwhile. - // - read: function EvaluatorPreprocessor_read(operation) { - var args = operation.args; - while (true) { - var obj = this.parser.getObj(); - if (isCmd(obj)) { - var cmd = obj.cmd; - // Check that the command is valid - var opSpec = OP_MAP[cmd]; - if (!opSpec) { - warn('Unknown command "' + cmd + '"'); - continue; + // Shift '>>' and check whether the new object marks the end of the stream + if (this.tryShift() && isCmd(this.buf2, 'endstream')) { + this.shift(); // 'stream' + } else { + // bad stream length, scanning for endstream + stream.pos = pos; + var SCAN_BLOCK_SIZE = 2048; + var ENDSTREAM_SIGNATURE_LENGTH = 9; + var ENDSTREAM_SIGNATURE = [0x65, 0x6E, 0x64, 0x73, 0x74, 0x72, 0x65, + 0x61, 0x6D]; + var skipped = 0, found = false, i, j; + while (stream.pos < stream.end) { + var scanBytes = stream.peekBytes(SCAN_BLOCK_SIZE); + var scanLength = scanBytes.length - ENDSTREAM_SIGNATURE_LENGTH; + if (scanLength <= 0) { + break; } - - var fn = opSpec.id; - var numArgs = opSpec.numArgs; - var argsLength = args !== null ? args.length : 0; - - if (!opSpec.variableArgs) { - // Postscript commands can be nested, e.g. /F2 /GS2 gs 5.711 Tf - if (argsLength !== numArgs) { - var nonProcessedArgs = this.nonProcessedArgs; - while (argsLength > numArgs) { - nonProcessedArgs.push(args.shift()); - argsLength--; - } - while (argsLength < numArgs && nonProcessedArgs.length !== 0) { - if (!args) { - args = []; - } - args.unshift(nonProcessedArgs.pop()); - argsLength++; + found = false; + for (i = 0, j = 0; i < scanLength; i++) { + var b = scanBytes[i]; + if (b !== ENDSTREAM_SIGNATURE[j]) { + i -= j; + j = 0; + } else { + j++; + if (j >= ENDSTREAM_SIGNATURE_LENGTH) { + i++; + found = true; + break; } } + } + if (found) { + skipped += i - ENDSTREAM_SIGNATURE_LENGTH; + stream.pos += i - ENDSTREAM_SIGNATURE_LENGTH; + break; + } + skipped += scanLength; + stream.pos += scanLength; + } + if (!found) { + error('Missing endstream'); + } + length = skipped; - if (argsLength < numArgs) { - // If we receive too few args, it's not possible to possible - // to execute the command, so skip the command - info('Command ' + fn + ': because expected ' + - numArgs + ' args, but received ' + argsLength + - ' args; skipping'); - args = null; + lexer.nextChar(); + this.shift(); + this.shift(); + } + this.shift(); // 'endstream' + + stream = stream.makeSubStream(pos, length, dict); + if (cipherTransform) { + stream = cipherTransform.createStream(stream, length); + } + stream = this.filter(stream, dict, length); + stream.dict = dict; + return stream; + }, + filter: function Parser_filter(stream, dict, length) { + var filter = dict.get('Filter', 'F'); + var params = dict.get('DecodeParms', 'DP'); + if (isName(filter)) { + return this.makeFilter(stream, filter.name, length, params); + } + + var maybeLength = length; + if (isArray(filter)) { + var filterArray = filter; + var paramsArray = params; + for (var i = 0, ii = filterArray.length; i < ii; ++i) { + filter = filterArray[i]; + if (!isName(filter)) { + error('Bad filter name: ' + filter); + } + + params = null; + if (isArray(paramsArray) && (i in paramsArray)) { + params = paramsArray[i]; + } + stream = this.makeFilter(stream, filter.name, maybeLength, params); + // after the first stream the length variable is invalid + maybeLength = null; + } + } + return stream; + }, + makeFilter: function Parser_makeFilter(stream, name, maybeLength, params) { + if (stream.dict.get('Length') === 0 && !maybeLength) { + warn('Empty "' + name + '" stream.'); + return new NullStream(stream); + } + try { + if (params && this.xref) { + params = this.xref.fetchIfRef(params); + } + var xrefStreamStats = this.xref.stats.streamTypes; + if (name === 'FlateDecode' || name === 'Fl') { + xrefStreamStats[StreamType.FLATE] = true; + if (params) { + return new PredictorStream(new FlateStream(stream, maybeLength), + maybeLength, params); + } + return new FlateStream(stream, maybeLength); + } + if (name === 'LZWDecode' || name === 'LZW') { + xrefStreamStats[StreamType.LZW] = true; + var earlyChange = 1; + if (params) { + if (params.has('EarlyChange')) { + earlyChange = params.get('EarlyChange'); + } + return new PredictorStream( + new LZWStream(stream, maybeLength, earlyChange), + maybeLength, params); + } + return new LZWStream(stream, maybeLength, earlyChange); + } + if (name === 'DCTDecode' || name === 'DCT') { + xrefStreamStats[StreamType.DCT] = true; + return new JpegStream(stream, maybeLength, stream.dict, this.xref); + } + if (name === 'JPXDecode' || name === 'JPX') { + xrefStreamStats[StreamType.JPX] = true; + return new JpxStream(stream, maybeLength, stream.dict); + } + if (name === 'ASCII85Decode' || name === 'A85') { + xrefStreamStats[StreamType.A85] = true; + return new Ascii85Stream(stream, maybeLength); + } + if (name === 'ASCIIHexDecode' || name === 'AHx') { + xrefStreamStats[StreamType.AHX] = true; + return new AsciiHexStream(stream, maybeLength); + } + if (name === 'CCITTFaxDecode' || name === 'CCF') { + xrefStreamStats[StreamType.CCF] = true; + return new CCITTFaxStream(stream, maybeLength, params); + } + if (name === 'RunLengthDecode' || name === 'RL') { + xrefStreamStats[StreamType.RL] = true; + return new RunLengthStream(stream, maybeLength); + } + if (name === 'JBIG2Decode') { + xrefStreamStats[StreamType.JBIG] = true; + return new Jbig2Stream(stream, maybeLength, stream.dict); + } + warn('filter "' + name + '" not supported yet'); + return stream; + } catch (ex) { + if (ex instanceof MissingDataException) { + throw ex; + } + warn('Invalid stream: \"' + ex + '\"'); + return new NullStream(stream); + } + } + }; + + return Parser; +})(); + +var Lexer = (function LexerClosure() { + function Lexer(stream, knownCommands) { + this.stream = stream; + this.nextChar(); + + // While lexing, we build up many strings one char at a time. Using += for + // this can result in lots of garbage strings. It's better to build an + // array of single-char strings and then join() them together at the end. + // And reusing a single array (i.e. |this.strBuf|) over and over for this + // purpose uses less memory than using a new array for each string. + this.strBuf = []; + + // The PDFs might have "glued" commands with other commands, operands or + // literals, e.g. "q1". The knownCommands is a dictionary of the valid + // commands and their prefixes. The prefixes are built the following way: + // if there a command that is a prefix of the other valid command or + // literal (e.g. 'f' and 'false') the following prefixes must be included, + // 'fa', 'fal', 'fals'. The prefixes are not needed, if the command has no + // other commands or literals as a prefix. The knowCommands is optional. + this.knownCommands = knownCommands; + } + + Lexer.isSpace = function Lexer_isSpace(ch) { + // Space is one of the following characters: SPACE, TAB, CR or LF. + return (ch === 0x20 || ch === 0x09 || ch === 0x0D || ch === 0x0A); + }; + + // A '1' in this array means the character is white space. A '1' or + // '2' means the character ends a name or command. + var specialChars = [ + 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, // 0x + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 1x + 1, 0, 0, 0, 0, 2, 0, 0, 2, 2, 0, 0, 0, 0, 0, 2, // 2x + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, // 3x + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 4x + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, // 5x + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 6x + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, // 7x + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 8x + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 9x + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // ax + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // bx + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // cx + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // dx + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // ex + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 // fx + ]; + + function toHexDigit(ch) { + if (ch >= 0x30 && ch <= 0x39) { // '0'-'9' + return ch & 0x0F; + } + if ((ch >= 0x41 && ch <= 0x46) || (ch >= 0x61 && ch <= 0x66)) { + // 'A'-'F', 'a'-'f' + return (ch & 0x0F) + 9; + } + return -1; + } + + Lexer.prototype = { + nextChar: function Lexer_nextChar() { + return (this.currentChar = this.stream.getByte()); + }, + peekChar: function Lexer_peekChar() { + return this.stream.peekByte(); + }, + getNumber: function Lexer_getNumber() { + var ch = this.currentChar; + var eNotation = false; + var divideBy = 0; // different from 0 if it's a floating point value + var sign = 1; + + if (ch === 0x2D) { // '-' + sign = -1; + ch = this.nextChar(); + + if (ch === 0x2D) { // '-' + // Ignore double negative (this is consistent with Adobe Reader). + ch = this.nextChar(); + } + } else if (ch === 0x2B) { // '+' + ch = this.nextChar(); + } + if (ch === 0x2E) { // '.' + divideBy = 10; + ch = this.nextChar(); + } + if (ch < 0x30 || ch > 0x39) { // '0' - '9' + error('Invalid number: ' + String.fromCharCode(ch)); + return 0; + } + + var baseValue = ch - 0x30; // '0' + var powerValue = 0; + var powerValueSign = 1; + + while ((ch = this.nextChar()) >= 0) { + if (0x30 <= ch && ch <= 0x39) { // '0' - '9' + var currentDigit = ch - 0x30; // '0' + if (eNotation) { // We are after an 'e' or 'E' + powerValue = powerValue * 10 + currentDigit; + } else { + if (divideBy !== 0) { // We are after a point + divideBy *= 10; + } + baseValue = baseValue * 10 + currentDigit; + } + } else if (ch === 0x2E) { // '.' + if (divideBy === 0) { + divideBy = 1; + } else { + // A number can have only one '.' + break; + } + } else if (ch === 0x2D) { // '-' + // ignore minus signs in the middle of numbers to match + // Adobe's behavior + warn('Badly formated number'); + } else if (ch === 0x45 || ch === 0x65) { // 'E', 'e' + // 'E' can be either a scientific notation or the beginning of a new + // operator + ch = this.peekChar(); + if (ch === 0x2B || ch === 0x2D) { // '+', '-' + powerValueSign = (ch === 0x2D) ? -1 : 1; + this.nextChar(); // Consume the sign character + } else if (ch < 0x30 || ch > 0x39) { // '0' - '9' + // The 'E' must be the beginning of a new operator + break; + } + eNotation = true; + } else { + // the last character doesn't belong to us + break; + } + } + + if (divideBy !== 0) { + baseValue /= divideBy; + } + if (eNotation) { + baseValue *= Math.pow(10, powerValueSign * powerValue); + } + return sign * baseValue; + }, + getString: function Lexer_getString() { + var numParen = 1; + var done = false; + var strBuf = this.strBuf; + strBuf.length = 0; + + var ch = this.nextChar(); + while (true) { + var charBuffered = false; + switch (ch | 0) { + case -1: + warn('Unterminated string'); + done = true; + break; + case 0x28: // '(' + ++numParen; + strBuf.push('('); + break; + case 0x29: // ')' + if (--numParen === 0) { + this.nextChar(); // consume strings ')' + done = true; + } else { + strBuf.push(')'); + } + break; + case 0x5C: // '\\' + ch = this.nextChar(); + switch (ch) { + case -1: + warn('Unterminated string'); + done = true; + break; + case 0x6E: // 'n' + strBuf.push('\n'); + break; + case 0x72: // 'r' + strBuf.push('\r'); + break; + case 0x74: // 't' + strBuf.push('\t'); + break; + case 0x62: // 'b' + strBuf.push('\b'); + break; + case 0x66: // 'f' + strBuf.push('\f'); + break; + case 0x5C: // '\' + case 0x28: // '(' + case 0x29: // ')' + strBuf.push(String.fromCharCode(ch)); + break; + case 0x30: case 0x31: case 0x32: case 0x33: // '0'-'3' + case 0x34: case 0x35: case 0x36: case 0x37: // '4'-'7' + var x = ch & 0x0F; + ch = this.nextChar(); + charBuffered = true; + if (ch >= 0x30 && ch <= 0x37) { // '0'-'7' + x = (x << 3) + (ch & 0x0F); + ch = this.nextChar(); + if (ch >= 0x30 && ch <= 0x37) { // '0'-'7' + charBuffered = false; + x = (x << 3) + (ch & 0x0F); + } + } + strBuf.push(String.fromCharCode(x)); + break; + case 0x0D: // CR + if (this.peekChar() === 0x0A) { // LF + this.nextChar(); + } + break; + case 0x0A: // LF + break; + default: + strBuf.push(String.fromCharCode(ch)); + break; + } + break; + default: + strBuf.push(String.fromCharCode(ch)); + break; + } + if (done) { + break; + } + if (!charBuffered) { + ch = this.nextChar(); + } + } + return strBuf.join(''); + }, + getName: function Lexer_getName() { + var ch, previousCh; + var strBuf = this.strBuf; + strBuf.length = 0; + while ((ch = this.nextChar()) >= 0 && !specialChars[ch]) { + if (ch === 0x23) { // '#' + ch = this.nextChar(); + if (specialChars[ch]) { + warn('Lexer_getName: ' + + 'NUMBER SIGN (#) should be followed by a hexadecimal number.'); + strBuf.push('#'); + break; + } + var x = toHexDigit(ch); + if (x !== -1) { + previousCh = ch; + ch = this.nextChar(); + var x2 = toHexDigit(ch); + if (x2 === -1) { + warn('Lexer_getName: Illegal digit (' + + String.fromCharCode(ch) +') in hexadecimal number.'); + strBuf.push('#', String.fromCharCode(previousCh)); + if (specialChars[ch]) { + break; + } + strBuf.push(String.fromCharCode(ch)); continue; } - } else if (argsLength > numArgs) { - info('Command ' + fn + ': expected [0,' + numArgs + - '] args, but received ' + argsLength + ' args'); + strBuf.push(String.fromCharCode((x << 4) | x2)); + } else { + strBuf.push('#', String.fromCharCode(ch)); } - - // TODO figure out how to type-check vararg functions - this.preprocessCommand(fn, args); - - operation.fn = fn; - operation.args = args; - return true; } else { - if (isEOF(obj)) { - return false; // no more commands - } - // argument - if (obj !== null) { - if (!args) { - args = []; - } - args.push((obj instanceof Dict ? obj.getAll() : obj)); - assert(args.length <= 33, 'Too many arguments'); - } + strBuf.push(String.fromCharCode(ch)); } } + if (strBuf.length > 127) { + warn('name token is longer than allowed by the spec: ' + strBuf.length); + } + return Name.get(strBuf.join('')); }, + getHexString: function Lexer_getHexString() { + var strBuf = this.strBuf; + strBuf.length = 0; + var ch = this.currentChar; + var isFirstHex = true; + var firstDigit; + var secondDigit; + while (true) { + if (ch < 0) { + warn('Unterminated hex string'); + break; + } else if (ch === 0x3E) { // '>' + this.nextChar(); + break; + } else if (specialChars[ch] === 1) { + ch = this.nextChar(); + continue; + } else { + if (isFirstHex) { + firstDigit = toHexDigit(ch); + if (firstDigit === -1) { + warn('Ignoring invalid character "' + ch + '" in hex string'); + ch = this.nextChar(); + continue; + } + } else { + secondDigit = toHexDigit(ch); + if (secondDigit === -1) { + warn('Ignoring invalid character "' + ch + '" in hex string'); + ch = this.nextChar(); + continue; + } + strBuf.push(String.fromCharCode((firstDigit << 4) | secondDigit)); + } + isFirstHex = !isFirstHex; + ch = this.nextChar(); + } + } + return strBuf.join(''); + }, + getObj: function Lexer_getObj() { + // skip whitespace and comments + var comment = false; + var ch = this.currentChar; + while (true) { + if (ch < 0) { + return EOF; + } + if (comment) { + if (ch === 0x0A || ch === 0x0D) { // LF, CR + comment = false; + } + } else if (ch === 0x25) { // '%' + comment = true; + } else if (specialChars[ch] !== 1) { + break; + } + ch = this.nextChar(); + } - preprocessCommand: - function EvaluatorPreprocessor_preprocessCommand(fn, args) { - switch (fn | 0) { - case OPS.save: - this.stateManager.save(); + // start reading token + switch (ch | 0) { + case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: // '0'-'4' + case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: // '5'-'9' + case 0x2B: case 0x2D: case 0x2E: // '+', '-', '.' + return this.getNumber(); + case 0x28: // '(' + return this.getString(); + case 0x2F: // '/' + return this.getName(); + // array punctuation + case 0x5B: // '[' + this.nextChar(); + return Cmd.get('['); + case 0x5D: // ']' + this.nextChar(); + return Cmd.get(']'); + // hex string or dict punctuation + case 0x3C: // '<' + ch = this.nextChar(); + if (ch === 0x3C) { + // dict punctuation + this.nextChar(); + return Cmd.get('<<'); + } + return this.getHexString(); + // dict punctuation + case 0x3E: // '>' + ch = this.nextChar(); + if (ch === 0x3E) { + this.nextChar(); + return Cmd.get('>>'); + } + return Cmd.get('>'); + case 0x7B: // '{' + this.nextChar(); + return Cmd.get('{'); + case 0x7D: // '}' + this.nextChar(); + return Cmd.get('}'); + case 0x29: // ')' + error('Illegal character: ' + ch); break; - case OPS.restore: - this.stateManager.restore(); + } + + // command + var str = String.fromCharCode(ch); + var knownCommands = this.knownCommands; + var knownCommandFound = knownCommands && knownCommands[str] !== undefined; + while ((ch = this.nextChar()) >= 0 && !specialChars[ch]) { + // stop if known command is found and next character does not make + // the str a command + var possibleCommand = str + String.fromCharCode(ch); + if (knownCommandFound && knownCommands[possibleCommand] === undefined) { break; - case OPS.transform: - this.stateManager.transform(args); + } + if (str.length === 128) { + error('Command token too long: ' + str.length); + } + str = possibleCommand; + knownCommandFound = knownCommands && knownCommands[str] !== undefined; + } + if (str === 'true') { + return true; + } + if (str === 'false') { + return false; + } + if (str === 'null') { + return null; + } + return Cmd.get(str); + }, + skipToNextLine: function Lexer_skipToNextLine() { + var ch = this.currentChar; + while (ch >= 0) { + if (ch === 0x0D) { // CR + ch = this.nextChar(); + if (ch === 0x0A) { // LF + this.nextChar(); + } break; + } else if (ch === 0x0A) { // LF + this.nextChar(); + break; + } + ch = this.nextChar(); } } }; - return EvaluatorPreprocessor; + + return Lexer; })(); -var QueueOptimizer = (function QueueOptimizerClosure() { - function addState(parentState, pattern, fn) { - var state = parentState; - for (var i = 0, ii = pattern.length - 1; i < ii; i++) { - var item = pattern[i]; - state = (state[item] || (state[item] = [])); +var Linearization = { + create: function LinearizationCreate(stream) { + function getInt(name, allowZeroValue) { + var obj = linDict.get(name); + if (isInt(obj) && (allowZeroValue ? obj >= 0 : obj > 0)) { + return obj; + } + throw new Error('The "' + name + '" parameter in the linearization ' + + 'dictionary is invalid.'); } - state[pattern[pattern.length - 1]] = fn; - } - - function handlePaintSolidColorImageMask(iFirstSave, count, fnArray, - argsArray) { - // Handles special case of mainly LaTeX documents which use image masks to - // draw lines with the current fill style. - // 'count' groups of (save, transform, paintImageMaskXObject, restore)+ - // have been found at iFirstSave. - var iFirstPIMXO = iFirstSave + 2; - for (var i = 0; i < count; i++) { - var arg = argsArray[iFirstPIMXO + 4 * i]; - var imageMask = arg.length === 1 && arg[0]; - if (imageMask && imageMask.width === 1 && imageMask.height === 1 && - (!imageMask.data.length || - (imageMask.data.length === 1 && imageMask.data[0] === 0))) { - fnArray[iFirstPIMXO + 4 * i] = OPS.paintSolidColorImageMask; - continue; - } - break; - } - return count - i; - } - - var InitialState = []; - - // This replaces (save, transform, paintInlineImageXObject, restore)+ - // sequences with one |paintInlineImageXObjectGroup| operation. - addState(InitialState, - [OPS.save, OPS.transform, OPS.paintInlineImageXObject, OPS.restore], - function foundInlineImageGroup(context) { - var MIN_IMAGES_IN_INLINE_IMAGES_BLOCK = 10; - var MAX_IMAGES_IN_INLINE_IMAGES_BLOCK = 200; - var MAX_WIDTH = 1000; - var IMAGE_PADDING = 1; - - var fnArray = context.fnArray, argsArray = context.argsArray; - var curr = context.iCurr; - var iFirstSave = curr - 3; - var iFirstTransform = curr - 2; - var iFirstPIIXO = curr - 1; - - // Look for the quartets. - var i = iFirstSave + 4; - var ii = fnArray.length; - while (i + 3 < ii) { - if (fnArray[i] !== OPS.save || - fnArray[i + 1] !== OPS.transform || - fnArray[i + 2] !== OPS.paintInlineImageXObject || - fnArray[i + 3] !== OPS.restore) { - break; // ops don't match - } - i += 4; - } - - // At this point, i is the index of the first op past the last valid - // quartet. - var count = Math.min((i - iFirstSave) / 4, - MAX_IMAGES_IN_INLINE_IMAGES_BLOCK); - if (count < MIN_IMAGES_IN_INLINE_IMAGES_BLOCK) { - return i; - } - - // assuming that heights of those image is too small (~1 pixel) - // packing as much as possible by lines - var maxX = 0; - var map = [], maxLineHeight = 0; - var currentX = IMAGE_PADDING, currentY = IMAGE_PADDING; - var q; - for (q = 0; q < count; q++) { - var transform = argsArray[iFirstTransform + (q << 2)]; - var img = argsArray[iFirstPIIXO + (q << 2)][0]; - if (currentX + img.width > MAX_WIDTH) { - // starting new line - maxX = Math.max(maxX, currentX); - currentY += maxLineHeight + 2 * IMAGE_PADDING; - currentX = 0; - maxLineHeight = 0; - } - map.push({ - transform: transform, - x: currentX, y: currentY, - w: img.width, h: img.height - }); - currentX += img.width + 2 * IMAGE_PADDING; - maxLineHeight = Math.max(maxLineHeight, img.height); - } - var imgWidth = Math.max(maxX, currentX) + IMAGE_PADDING; - var imgHeight = currentY + maxLineHeight + IMAGE_PADDING; - var imgData = new Uint8Array(imgWidth * imgHeight * 4); - var imgRowSize = imgWidth << 2; - for (q = 0; q < count; q++) { - var data = argsArray[iFirstPIIXO + (q << 2)][0].data; - // Copy image by lines and extends pixels into padding. - var rowSize = map[q].w << 2; - var dataOffset = 0; - var offset = (map[q].x + map[q].y * imgWidth) << 2; - imgData.set(data.subarray(0, rowSize), offset - imgRowSize); - for (var k = 0, kk = map[q].h; k < kk; k++) { - imgData.set(data.subarray(dataOffset, dataOffset + rowSize), offset); - dataOffset += rowSize; - offset += imgRowSize; - } - imgData.set(data.subarray(dataOffset - rowSize, dataOffset), offset); - while (offset >= 0) { - data[offset - 4] = data[offset]; - data[offset - 3] = data[offset + 1]; - data[offset - 2] = data[offset + 2]; - data[offset - 1] = data[offset + 3]; - data[offset + rowSize] = data[offset + rowSize - 4]; - data[offset + rowSize + 1] = data[offset + rowSize - 3]; - data[offset + rowSize + 2] = data[offset + rowSize - 2]; - data[offset + rowSize + 3] = data[offset + rowSize - 1]; - offset -= imgRowSize; - } - } - - // Replace queue items. - fnArray.splice(iFirstSave, count * 4, OPS.paintInlineImageXObjectGroup); - argsArray.splice(iFirstSave, count * 4, - [{ width: imgWidth, height: imgHeight, kind: ImageKind.RGBA_32BPP, - data: imgData }, map]); - - return iFirstSave + 1; - }); - - // This replaces (save, transform, paintImageMaskXObject, restore)+ - // sequences with one |paintImageMaskXObjectGroup| or one - // |paintImageMaskXObjectRepeat| operation. - addState(InitialState, - [OPS.save, OPS.transform, OPS.paintImageMaskXObject, OPS.restore], - function foundImageMaskGroup(context) { - var MIN_IMAGES_IN_MASKS_BLOCK = 10; - var MAX_IMAGES_IN_MASKS_BLOCK = 100; - var MAX_SAME_IMAGES_IN_MASKS_BLOCK = 1000; - - var fnArray = context.fnArray, argsArray = context.argsArray; - var curr = context.iCurr; - var iFirstSave = curr - 3; - var iFirstTransform = curr - 2; - var iFirstPIMXO = curr - 1; - - // Look for the quartets. - var i = iFirstSave + 4; - var ii = fnArray.length; - while (i + 3 < ii) { - if (fnArray[i] !== OPS.save || - fnArray[i + 1] !== OPS.transform || - fnArray[i + 2] !== OPS.paintImageMaskXObject || - fnArray[i + 3] !== OPS.restore) { - break; // ops don't match - } - i += 4; - } - - // At this point, i is the index of the first op past the last valid - // quartet. - var count = (i - iFirstSave) / 4; - count = handlePaintSolidColorImageMask(iFirstSave, count, fnArray, - argsArray); - if (count < MIN_IMAGES_IN_MASKS_BLOCK) { - return i; - } - - var q; - var isSameImage = false; - var iTransform, transformArgs; - var firstPIMXOArg0 = argsArray[iFirstPIMXO][0]; - if (argsArray[iFirstTransform][1] === 0 && - argsArray[iFirstTransform][2] === 0) { - isSameImage = true; - var firstTransformArg0 = argsArray[iFirstTransform][0]; - var firstTransformArg3 = argsArray[iFirstTransform][3]; - iTransform = iFirstTransform + 4; - var iPIMXO = iFirstPIMXO + 4; - for (q = 1; q < count; q++, iTransform += 4, iPIMXO += 4) { - transformArgs = argsArray[iTransform]; - if (argsArray[iPIMXO][0] !== firstPIMXOArg0 || - transformArgs[0] !== firstTransformArg0 || - transformArgs[1] !== 0 || - transformArgs[2] !== 0 || - transformArgs[3] !== firstTransformArg3) { - if (q < MIN_IMAGES_IN_MASKS_BLOCK) { - isSameImage = false; - } else { - count = q; - } - break; // different image or transform + function getHints() { + var hints = linDict.get('H'), hintsLength, item; + if (isArray(hints) && + ((hintsLength = hints.length) === 2 || hintsLength === 4)) { + for (var index = 0; index < hintsLength; index++) { + if (!(isInt(item = hints[index]) && item > 0)) { + throw new Error('Hint (' + index + + ') in the linearization dictionary is invalid.'); } } + return hints; } - - if (isSameImage) { - count = Math.min(count, MAX_SAME_IMAGES_IN_MASKS_BLOCK); - var positions = new Float32Array(count * 2); - iTransform = iFirstTransform; - for (q = 0; q < count; q++, iTransform += 4) { - transformArgs = argsArray[iTransform]; - positions[(q << 1)] = transformArgs[4]; - positions[(q << 1) + 1] = transformArgs[5]; - } - - // Replace queue items. - fnArray.splice(iFirstSave, count * 4, OPS.paintImageMaskXObjectRepeat); - argsArray.splice(iFirstSave, count * 4, - [firstPIMXOArg0, firstTransformArg0, firstTransformArg3, positions]); - } else { - count = Math.min(count, MAX_IMAGES_IN_MASKS_BLOCK); - var images = []; - for (q = 0; q < count; q++) { - transformArgs = argsArray[iFirstTransform + (q << 2)]; - var maskParams = argsArray[iFirstPIMXO + (q << 2)][0]; - images.push({ data: maskParams.data, width: maskParams.width, - height: maskParams.height, - transform: transformArgs }); - } - - // Replace queue items. - fnArray.splice(iFirstSave, count * 4, OPS.paintImageMaskXObjectGroup); - argsArray.splice(iFirstSave, count * 4, [images]); - } - - return iFirstSave + 1; - }); - - // This replaces (save, transform, paintImageXObject, restore)+ sequences - // with one paintImageXObjectRepeat operation, if the |transform| and - // |paintImageXObjectRepeat| ops are appropriate. - addState(InitialState, - [OPS.save, OPS.transform, OPS.paintImageXObject, OPS.restore], - function (context) { - var MIN_IMAGES_IN_BLOCK = 3; - var MAX_IMAGES_IN_BLOCK = 1000; - - var fnArray = context.fnArray, argsArray = context.argsArray; - var curr = context.iCurr; - var iFirstSave = curr - 3; - var iFirstTransform = curr - 2; - var iFirstPIXO = curr - 1; - var iFirstRestore = curr; - - if (argsArray[iFirstTransform][1] !== 0 || - argsArray[iFirstTransform][2] !== 0) { - return iFirstRestore + 1; // transform has the wrong form - } - - // Look for the quartets. - var firstPIXOArg0 = argsArray[iFirstPIXO][0]; - var firstTransformArg0 = argsArray[iFirstTransform][0]; - var firstTransformArg3 = argsArray[iFirstTransform][3]; - var i = iFirstSave + 4; - var ii = fnArray.length; - while (i + 3 < ii) { - if (fnArray[i] !== OPS.save || - fnArray[i + 1] !== OPS.transform || - fnArray[i + 2] !== OPS.paintImageXObject || - fnArray[i + 3] !== OPS.restore) { - break; // ops don't match - } - if (argsArray[i + 1][0] !== firstTransformArg0 || - argsArray[i + 1][1] !== 0 || - argsArray[i + 1][2] !== 0 || - argsArray[i + 1][3] !== firstTransformArg3) { - break; // transforms don't match - } - if (argsArray[i + 2][0] !== firstPIXOArg0) { - break; // images don't match - } - i += 4; - } - - // At this point, i is the index of the first op past the last valid - // quartet. - var count = Math.min((i - iFirstSave) / 4, MAX_IMAGES_IN_BLOCK); - if (count < MIN_IMAGES_IN_BLOCK) { - return i; - } - - // Extract the (x,y) positions from all of the matching transforms. - var positions = new Float32Array(count * 2); - var iTransform = iFirstTransform; - for (var q = 0; q < count; q++, iTransform += 4) { - var transformArgs = argsArray[iTransform]; - positions[(q << 1)] = transformArgs[4]; - positions[(q << 1) + 1] = transformArgs[5]; - } - - // Replace queue items. - var args = [firstPIXOArg0, firstTransformArg0, firstTransformArg3, - positions]; - fnArray.splice(iFirstSave, count * 4, OPS.paintImageXObjectRepeat); - argsArray.splice(iFirstSave, count * 4, args); - - return iFirstSave + 1; - }); - - // This replaces (beginText, setFont, setTextMatrix, showText, endText)+ - // sequences with (beginText, setFont, (setTextMatrix, showText)+, endText)+ - // sequences, if the font for each one is the same. - addState(InitialState, - [OPS.beginText, OPS.setFont, OPS.setTextMatrix, OPS.showText, OPS.endText], - function (context) { - var MIN_CHARS_IN_BLOCK = 3; - var MAX_CHARS_IN_BLOCK = 1000; - - var fnArray = context.fnArray, argsArray = context.argsArray; - var curr = context.iCurr; - var iFirstBeginText = curr - 4; - var iFirstSetFont = curr - 3; - var iFirstSetTextMatrix = curr - 2; - var iFirstShowText = curr - 1; - var iFirstEndText = curr; - - // Look for the quintets. - var firstSetFontArg0 = argsArray[iFirstSetFont][0]; - var firstSetFontArg1 = argsArray[iFirstSetFont][1]; - var i = iFirstBeginText + 5; - var ii = fnArray.length; - while (i + 4 < ii) { - if (fnArray[i] !== OPS.beginText || - fnArray[i + 1] !== OPS.setFont || - fnArray[i + 2] !== OPS.setTextMatrix || - fnArray[i + 3] !== OPS.showText || - fnArray[i + 4] !== OPS.endText) { - break; // ops don't match - } - if (argsArray[i + 1][0] !== firstSetFontArg0 || - argsArray[i + 1][1] !== firstSetFontArg1) { - break; // fonts don't match - } - i += 5; - } - - // At this point, i is the index of the first op past the last valid - // quintet. - var count = Math.min(((i - iFirstBeginText) / 5), MAX_CHARS_IN_BLOCK); - if (count < MIN_CHARS_IN_BLOCK) { - return i; - } - - // If the preceding quintet is (, setFont, setTextMatrix, - // showText, endText), include that as well. (E.g. might be - // |dependency|.) - var iFirst = iFirstBeginText; - if (iFirstBeginText >= 4 && - fnArray[iFirstBeginText - 4] === fnArray[iFirstSetFont] && - fnArray[iFirstBeginText - 3] === fnArray[iFirstSetTextMatrix] && - fnArray[iFirstBeginText - 2] === fnArray[iFirstShowText] && - fnArray[iFirstBeginText - 1] === fnArray[iFirstEndText] && - argsArray[iFirstBeginText - 4][0] === firstSetFontArg0 && - argsArray[iFirstBeginText - 4][1] === firstSetFontArg1) { - count++; - iFirst -= 5; - } - - // Remove (endText, beginText, setFont) trios. - var iEndText = iFirst + 4; - for (var q = 1; q < count; q++) { - fnArray.splice(iEndText, 3); - argsArray.splice(iEndText, 3); - iEndText += 2; - } - - return iEndText + 1; - }); - - function QueueOptimizer() {} - - QueueOptimizer.prototype = { - optimize: function QueueOptimizer_optimize(queue) { - var fnArray = queue.fnArray, argsArray = queue.argsArray; - var context = { - iCurr: 0, - fnArray: fnArray, - argsArray: argsArray - }; - var state; - var i = 0, ii = fnArray.length; - while (i < ii) { - state = (state || InitialState)[fnArray[i]]; - if (typeof state === 'function') { // we found some handler - context.iCurr = i; - // state() returns the index of the first non-matching op (if we - // didn't match) or the first op past the modified ops (if we did - // match and replace). - i = state(context); - state = undefined; // reset the state machine - ii = context.fnArray.length; - } else { - i++; - } - } + throw new Error('Hint array in the linearization dictionary is invalid.'); } - }; - return QueueOptimizer; -})(); + var parser = new Parser(new Lexer(stream), false, null); + var obj1 = parser.getObj(); + var obj2 = parser.getObj(); + var obj3 = parser.getObj(); + var linDict = parser.getObj(); + var obj, length; + if (!(isInt(obj1) && isInt(obj2) && isCmd(obj3, 'obj') && isDict(linDict) && + isNum(obj = linDict.get('Linearized')) && obj > 0)) { + return null; // No valid linearization dictionary found. + } else if ((length = getInt('L')) !== stream.length) { + throw new Error('The "L" parameter in the linearization dictionary ' + + 'does not equal the stream length.'); + } + return { + length: length, + hints: getHints(), + objectNumberFirst: getInt('O'), + endFirst: getInt('E'), + numPages: getInt('N'), + mainXRefEntriesOffset: getInt('T'), + pageFirst: (linDict.has('P') ? getInt('P', true) : 0) + }; + } +}; +exports.EOF = EOF; +exports.Lexer = Lexer; +exports.Linearization = Linearization; +exports.Parser = Parser; +exports.isEOF = isEOF; + +// TODO refactor to remove dependency on stream.js +coreStream._setCoreParser(exports); +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreCMap = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreStream, root.pdfjsCoreParser); + } +}(this, function (exports, sharedUtil, corePrimitives, coreStream, coreParser) { + +var Util = sharedUtil.Util; +var assert = sharedUtil.assert; +var error = sharedUtil.error; +var isInt = sharedUtil.isInt; +var isString = sharedUtil.isString; +var warn = sharedUtil.warn; +var isName = corePrimitives.isName; +var isCmd = corePrimitives.isCmd; +var isStream = corePrimitives.isStream; +var StringStream = coreStream.StringStream; +var Lexer = coreParser.Lexer; +var isEOF = coreParser.isEOF; var BUILT_IN_CMAPS = [ // << Start unicode maps. @@ -14128,6 +22249,1732 @@ var CMapFactory = (function CMapFactoryClosure() { }; })(); +exports.CMap = CMap; +exports.CMapFactory = CMapFactory; +exports.IdentityCMap = IdentityCMap; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreObj = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreCrypto, root.pdfjsCoreParser, + root.pdfjsCoreChunkedStream); + } +}(this, function (exports, sharedUtil, corePrimitives, coreCrypto, coreParser, + coreChunkedStream) { + +var InvalidPDFException = sharedUtil.InvalidPDFException; +var MissingDataException = sharedUtil.MissingDataException; +var XRefParseException = sharedUtil.XRefParseException; +var assert = sharedUtil.assert; +var bytesToString = sharedUtil.bytesToString; +var createPromiseCapability = sharedUtil.createPromiseCapability; +var error = sharedUtil.error; +var info = sharedUtil.info; +var isArray = sharedUtil.isArray; +var isInt = sharedUtil.isInt; +var isString = sharedUtil.isString; +var shadow = sharedUtil.shadow; +var stringToPDFString = sharedUtil.stringToPDFString; +var stringToUTF8String = sharedUtil.stringToUTF8String; +var warn = sharedUtil.warn; +var Ref = corePrimitives.Ref; +var RefSet = corePrimitives.RefSet; +var RefSetCache = corePrimitives.RefSetCache; +var isName = corePrimitives.isName; +var isCmd = corePrimitives.isCmd; +var isDict = corePrimitives.isDict; +var isRef = corePrimitives.isRef; +var isStream = corePrimitives.isStream; +var CipherTransformFactory = coreCrypto.CipherTransformFactory; +var Lexer = coreParser.Lexer; +var Parser = coreParser.Parser; +var ChunkedStream = coreChunkedStream.ChunkedStream; + +var Catalog = (function CatalogClosure() { + function Catalog(pdfManager, xref, pageFactory) { + this.pdfManager = pdfManager; + this.xref = xref; + this.catDict = xref.getCatalogObj(); + this.fontCache = new RefSetCache(); + assert(isDict(this.catDict), + 'catalog object is not a dictionary'); + + // TODO refactor to move getPage() to the PDFDocument. + this.pageFactory = pageFactory; + this.pagePromises = []; + } + + Catalog.prototype = { + get metadata() { + var streamRef = this.catDict.getRaw('Metadata'); + if (!isRef(streamRef)) { + return shadow(this, 'metadata', null); + } + + var encryptMetadata = (!this.xref.encrypt ? false : + this.xref.encrypt.encryptMetadata); + + var stream = this.xref.fetch(streamRef, !encryptMetadata); + var metadata; + if (stream && isDict(stream.dict)) { + var type = stream.dict.get('Type'); + var subtype = stream.dict.get('Subtype'); + + if (isName(type) && isName(subtype) && + type.name === 'Metadata' && subtype.name === 'XML') { + // XXX: This should examine the charset the XML document defines, + // however since there are currently no real means to decode + // arbitrary charsets, let's just hope that the author of the PDF + // was reasonable enough to stick with the XML default charset, + // which is UTF-8. + try { + metadata = stringToUTF8String(bytesToString(stream.getBytes())); + } catch (e) { + info('Skipping invalid metadata.'); + } + } + } + + return shadow(this, 'metadata', metadata); + }, + get toplevelPagesDict() { + var pagesObj = this.catDict.get('Pages'); + assert(isDict(pagesObj), 'invalid top-level pages dictionary'); + // shadow the prototype getter + return shadow(this, 'toplevelPagesDict', pagesObj); + }, + get documentOutline() { + var obj = null; + try { + obj = this.readDocumentOutline(); + } catch (ex) { + if (ex instanceof MissingDataException) { + throw ex; + } + warn('Unable to read document outline'); + } + return shadow(this, 'documentOutline', obj); + }, + readDocumentOutline: function Catalog_readDocumentOutline() { + var xref = this.xref; + var obj = this.catDict.get('Outlines'); + var root = { items: [] }; + if (isDict(obj)) { + obj = obj.getRaw('First'); + var processed = new RefSet(); + if (isRef(obj)) { + var queue = [{obj: obj, parent: root}]; + // to avoid recursion keeping track of the items + // in the processed dictionary + processed.put(obj); + while (queue.length > 0) { + var i = queue.shift(); + var outlineDict = xref.fetchIfRef(i.obj); + if (outlineDict === null) { + continue; + } + if (!outlineDict.has('Title')) { + error('Invalid outline item'); + } + var dest = outlineDict.get('A'); + if (dest) { + dest = dest.get('D'); + } else if (outlineDict.has('Dest')) { + dest = outlineDict.getRaw('Dest'); + if (isName(dest)) { + dest = dest.name; + } + } + var title = outlineDict.get('Title'); + var outlineItem = { + dest: dest, + title: stringToPDFString(title), + color: outlineDict.get('C') || [0, 0, 0], + count: outlineDict.get('Count'), + bold: !!(outlineDict.get('F') & 2), + italic: !!(outlineDict.get('F') & 1), + items: [] + }; + i.parent.items.push(outlineItem); + obj = outlineDict.getRaw('First'); + if (isRef(obj) && !processed.has(obj)) { + queue.push({obj: obj, parent: outlineItem}); + processed.put(obj); + } + obj = outlineDict.getRaw('Next'); + if (isRef(obj) && !processed.has(obj)) { + queue.push({obj: obj, parent: i.parent}); + processed.put(obj); + } + } + } + } + return (root.items.length > 0 ? root.items : null); + }, + get numPages() { + var obj = this.toplevelPagesDict.get('Count'); + assert( + isInt(obj), + 'page count in top level pages object is not an integer' + ); + // shadow the prototype getter + return shadow(this, 'num', obj); + }, + get destinations() { + function fetchDestination(dest) { + return isDict(dest) ? dest.get('D') : dest; + } + + var xref = this.xref; + var dests = {}, nameTreeRef, nameDictionaryRef; + var obj = this.catDict.get('Names'); + if (obj && obj.has('Dests')) { + nameTreeRef = obj.getRaw('Dests'); + } else if (this.catDict.has('Dests')) { + nameDictionaryRef = this.catDict.get('Dests'); + } + + if (nameDictionaryRef) { + // reading simple destination dictionary + obj = nameDictionaryRef; + obj.forEach(function catalogForEach(key, value) { + if (!value) { + return; + } + dests[key] = fetchDestination(value); + }); + } + if (nameTreeRef) { + var nameTree = new NameTree(nameTreeRef, xref); + var names = nameTree.getAll(); + for (var name in names) { + if (!names.hasOwnProperty(name)) { + continue; + } + dests[name] = fetchDestination(names[name]); + } + } + return shadow(this, 'destinations', dests); + }, + getDestination: function Catalog_getDestination(destinationId) { + function fetchDestination(dest) { + return isDict(dest) ? dest.get('D') : dest; + } + + var xref = this.xref; + var dest = null, nameTreeRef, nameDictionaryRef; + var obj = this.catDict.get('Names'); + if (obj && obj.has('Dests')) { + nameTreeRef = obj.getRaw('Dests'); + } else if (this.catDict.has('Dests')) { + nameDictionaryRef = this.catDict.get('Dests'); + } + + if (nameDictionaryRef) { // Simple destination dictionary. + var value = nameDictionaryRef.get(destinationId); + if (value) { + dest = fetchDestination(value); + } + } + if (nameTreeRef) { + var nameTree = new NameTree(nameTreeRef, xref); + dest = fetchDestination(nameTree.get(destinationId)); + } + return dest; + }, + get attachments() { + var xref = this.xref; + var attachments = null, nameTreeRef; + var obj = this.catDict.get('Names'); + if (obj) { + nameTreeRef = obj.getRaw('EmbeddedFiles'); + } + + if (nameTreeRef) { + var nameTree = new NameTree(nameTreeRef, xref); + var names = nameTree.getAll(); + for (var name in names) { + if (!names.hasOwnProperty(name)) { + continue; + } + var fs = new FileSpec(names[name], xref); + if (!attachments) { + attachments = {}; + } + attachments[stringToPDFString(name)] = fs.serializable; + } + } + return shadow(this, 'attachments', attachments); + }, + get javaScript() { + var xref = this.xref; + var obj = this.catDict.get('Names'); + + var javaScript = []; + function appendIfJavaScriptDict(jsDict) { + var type = jsDict.get('S'); + if (!isName(type) || type.name !== 'JavaScript') { + return; + } + var js = jsDict.get('JS'); + if (isStream(js)) { + js = bytesToString(js.getBytes()); + } else if (!isString(js)) { + return; + } + javaScript.push(stringToPDFString(js)); + } + if (obj && obj.has('JavaScript')) { + var nameTree = new NameTree(obj.getRaw('JavaScript'), xref); + var names = nameTree.getAll(); + for (var name in names) { + if (!names.hasOwnProperty(name)) { + continue; + } + // We don't really use the JavaScript right now. This code is + // defensive so we don't cause errors on document load. + var jsDict = names[name]; + if (isDict(jsDict)) { + appendIfJavaScriptDict(jsDict); + } + } + } + + // Append OpenAction actions to javaScript array + var openactionDict = this.catDict.get('OpenAction'); + if (isDict(openactionDict, 'Action')) { + var actionType = openactionDict.get('S'); + if (isName(actionType) && actionType.name === 'Named') { + // The named Print action is not a part of the PDF 1.7 specification, + // but is supported by many PDF readers/writers (including Adobe's). + var action = openactionDict.get('N'); + if (isName(action) && action.name === 'Print') { + javaScript.push('print({});'); + } + } else { + appendIfJavaScriptDict(openactionDict); + } + } + + return shadow(this, 'javaScript', javaScript); + }, + + cleanup: function Catalog_cleanup() { + var promises = []; + this.fontCache.forEach(function (promise) { + promises.push(promise); + }); + return Promise.all(promises).then(function (translatedFonts) { + for (var i = 0, ii = translatedFonts.length; i < ii; i++) { + var font = translatedFonts[i].dict; + delete font.translated; + } + this.fontCache.clear(); + }.bind(this)); + }, + + getPage: function Catalog_getPage(pageIndex) { + if (!(pageIndex in this.pagePromises)) { + this.pagePromises[pageIndex] = this.getPageDict(pageIndex).then( + function (a) { + var dict = a[0]; + var ref = a[1]; + return this.pageFactory.createPage(pageIndex, dict, ref, + this.fontCache); + }.bind(this) + ); + } + return this.pagePromises[pageIndex]; + }, + + getPageDict: function Catalog_getPageDict(pageIndex) { + var capability = createPromiseCapability(); + var nodesToVisit = [this.catDict.getRaw('Pages')]; + var currentPageIndex = 0; + var xref = this.xref; + var checkAllKids = false; + + function next() { + while (nodesToVisit.length) { + var currentNode = nodesToVisit.pop(); + + if (isRef(currentNode)) { + xref.fetchAsync(currentNode).then(function (obj) { + if (isDict(obj, 'Page') || (isDict(obj) && !obj.has('Kids'))) { + if (pageIndex === currentPageIndex) { + capability.resolve([obj, currentNode]); + } else { + currentPageIndex++; + next(); + } + return; + } + nodesToVisit.push(obj); + next(); + }, capability.reject); + return; + } + + // Must be a child page dictionary. + assert( + isDict(currentNode), + 'page dictionary kid reference points to wrong type of object' + ); + var count = currentNode.get('Count'); + // If the current node doesn't have any children, avoid getting stuck + // in an empty node further down in the tree (see issue5644.pdf). + if (count === 0) { + checkAllKids = true; + } + // Skip nodes where the page can't be. + if (currentPageIndex + count <= pageIndex) { + currentPageIndex += count; + continue; + } + + var kids = currentNode.get('Kids'); + assert(isArray(kids), 'page dictionary kids object is not an array'); + if (!checkAllKids && count === kids.length) { + // Nodes that don't have the page have been skipped and this is the + // bottom of the tree which means the page requested must be a + // descendant of this pages node. Ideally we would just resolve the + // promise with the page ref here, but there is the case where more + // pages nodes could link to single a page (see issue 3666 pdf). To + // handle this push it back on the queue so if it is a pages node it + // will be descended into. + nodesToVisit = [kids[pageIndex - currentPageIndex]]; + currentPageIndex = pageIndex; + continue; + } else { + for (var last = kids.length - 1; last >= 0; last--) { + nodesToVisit.push(kids[last]); + } + } + } + capability.reject('Page index ' + pageIndex + ' not found.'); + } + next(); + return capability.promise; + }, + + getPageIndex: function Catalog_getPageIndex(ref) { + // The page tree nodes have the count of all the leaves below them. To get + // how many pages are before we just have to walk up the tree and keep + // adding the count of siblings to the left of the node. + var xref = this.xref; + function pagesBeforeRef(kidRef) { + var total = 0; + var parentRef; + return xref.fetchAsync(kidRef).then(function (node) { + if (!node) { + return null; + } + parentRef = node.getRaw('Parent'); + return node.getAsync('Parent'); + }).then(function (parent) { + if (!parent) { + return null; + } + return parent.getAsync('Kids'); + }).then(function (kids) { + if (!kids) { + return null; + } + var kidPromises = []; + var found = false; + for (var i = 0; i < kids.length; i++) { + var kid = kids[i]; + assert(isRef(kid), 'kids must be a ref'); + if (kid.num === kidRef.num) { + found = true; + break; + } + kidPromises.push(xref.fetchAsync(kid).then(function (kid) { + if (kid.has('Count')) { + var count = kid.get('Count'); + total += count; + } else { // page leaf node + total++; + } + })); + } + if (!found) { + error('kid ref not found in parents kids'); + } + return Promise.all(kidPromises).then(function () { + return [total, parentRef]; + }); + }); + } + + var total = 0; + function next(ref) { + return pagesBeforeRef(ref).then(function (args) { + if (!args) { + return total; + } + var count = args[0]; + var parentRef = args[1]; + total += count; + return next(parentRef); + }); + } + + return next(ref); + } + }; + + return Catalog; +})(); + +var XRef = (function XRefClosure() { + function XRef(stream, password) { + this.stream = stream; + this.entries = []; + this.xrefstms = {}; + // prepare the XRef cache + this.cache = []; + this.password = password; + this.stats = { + streamTypes: [], + fontTypes: [] + }; + } + + XRef.prototype = { + setStartXRef: function XRef_setStartXRef(startXRef) { + // Store the starting positions of xref tables as we process them + // so we can recover from missing data errors + this.startXRefQueue = [startXRef]; + }, + + parse: function XRef_parse(recoveryMode) { + var trailerDict; + if (!recoveryMode) { + trailerDict = this.readXRef(); + } else { + warn('Indexing all PDF objects'); + trailerDict = this.indexObjects(); + } + trailerDict.assignXref(this); + this.trailer = trailerDict; + var encrypt = trailerDict.get('Encrypt'); + if (encrypt) { + var ids = trailerDict.get('ID'); + var fileId = (ids && ids.length) ? ids[0] : ''; + this.encrypt = new CipherTransformFactory(encrypt, fileId, + this.password); + } + + // get the root dictionary (catalog) object + if (!(this.root = trailerDict.get('Root'))) { + error('Invalid root reference'); + } + }, + + processXRefTable: function XRef_processXRefTable(parser) { + if (!('tableState' in this)) { + // Stores state of the table as we process it so we can resume + // from middle of table in case of missing data error + this.tableState = { + entryNum: 0, + streamPos: parser.lexer.stream.pos, + parserBuf1: parser.buf1, + parserBuf2: parser.buf2 + }; + } + + var obj = this.readXRefTable(parser); + + // Sanity check + if (!isCmd(obj, 'trailer')) { + error('Invalid XRef table: could not find trailer dictionary'); + } + // Read trailer dictionary, e.g. + // trailer + // << /Size 22 + // /Root 20R + // /Info 10R + // /ID [ <81b14aafa313db63dbd6f981e49f94f4> ] + // >> + // The parser goes through the entire stream << ... >> and provides + // a getter interface for the key-value table + var dict = parser.getObj(); + + // The pdflib PDF generator can generate a nested trailer dictionary + if (!isDict(dict) && dict.dict) { + dict = dict.dict; + } + if (!isDict(dict)) { + error('Invalid XRef table: could not parse trailer dictionary'); + } + delete this.tableState; + + return dict; + }, + + readXRefTable: function XRef_readXRefTable(parser) { + // Example of cross-reference table: + // xref + // 0 1 <-- subsection header (first obj #, obj count) + // 0000000000 65535 f <-- actual object (offset, generation #, f/n) + // 23 2 <-- subsection header ... and so on ... + // 0000025518 00002 n + // 0000025635 00000 n + // trailer + // ... + + var stream = parser.lexer.stream; + var tableState = this.tableState; + stream.pos = tableState.streamPos; + parser.buf1 = tableState.parserBuf1; + parser.buf2 = tableState.parserBuf2; + + // Outer loop is over subsection headers + var obj; + + while (true) { + if (!('firstEntryNum' in tableState) || !('entryCount' in tableState)) { + if (isCmd(obj = parser.getObj(), 'trailer')) { + break; + } + tableState.firstEntryNum = obj; + tableState.entryCount = parser.getObj(); + } + + var first = tableState.firstEntryNum; + var count = tableState.entryCount; + if (!isInt(first) || !isInt(count)) { + error('Invalid XRef table: wrong types in subsection header'); + } + // Inner loop is over objects themselves + for (var i = tableState.entryNum; i < count; i++) { + tableState.streamPos = stream.pos; + tableState.entryNum = i; + tableState.parserBuf1 = parser.buf1; + tableState.parserBuf2 = parser.buf2; + + var entry = {}; + entry.offset = parser.getObj(); + entry.gen = parser.getObj(); + var type = parser.getObj(); + + if (isCmd(type, 'f')) { + entry.free = true; + } else if (isCmd(type, 'n')) { + entry.uncompressed = true; + } + + // Validate entry obj + if (!isInt(entry.offset) || !isInt(entry.gen) || + !(entry.free || entry.uncompressed)) { + error('Invalid entry in XRef subsection: ' + first + ', ' + count); + } + + if (!this.entries[i + first]) { + this.entries[i + first] = entry; + } + } + + tableState.entryNum = 0; + tableState.streamPos = stream.pos; + tableState.parserBuf1 = parser.buf1; + tableState.parserBuf2 = parser.buf2; + delete tableState.firstEntryNum; + delete tableState.entryCount; + } + + // Per issue 3248: hp scanners generate bad XRef + if (first === 1 && this.entries[1] && this.entries[1].free) { + // shifting the entries + this.entries.shift(); + } + + // Sanity check: as per spec, first object must be free + if (this.entries[0] && !this.entries[0].free) { + error('Invalid XRef table: unexpected first object'); + } + return obj; + }, + + processXRefStream: function XRef_processXRefStream(stream) { + if (!('streamState' in this)) { + // Stores state of the stream as we process it so we can resume + // from middle of stream in case of missing data error + var streamParameters = stream.dict; + var byteWidths = streamParameters.get('W'); + var range = streamParameters.get('Index'); + if (!range) { + range = [0, streamParameters.get('Size')]; + } + + this.streamState = { + entryRanges: range, + byteWidths: byteWidths, + entryNum: 0, + streamPos: stream.pos + }; + } + this.readXRefStream(stream); + delete this.streamState; + + return stream.dict; + }, + + readXRefStream: function XRef_readXRefStream(stream) { + var i, j; + var streamState = this.streamState; + stream.pos = streamState.streamPos; + + var byteWidths = streamState.byteWidths; + var typeFieldWidth = byteWidths[0]; + var offsetFieldWidth = byteWidths[1]; + var generationFieldWidth = byteWidths[2]; + + var entryRanges = streamState.entryRanges; + while (entryRanges.length > 0) { + var first = entryRanges[0]; + var n = entryRanges[1]; + + if (!isInt(first) || !isInt(n)) { + error('Invalid XRef range fields: ' + first + ', ' + n); + } + if (!isInt(typeFieldWidth) || !isInt(offsetFieldWidth) || + !isInt(generationFieldWidth)) { + error('Invalid XRef entry fields length: ' + first + ', ' + n); + } + for (i = streamState.entryNum; i < n; ++i) { + streamState.entryNum = i; + streamState.streamPos = stream.pos; + + var type = 0, offset = 0, generation = 0; + for (j = 0; j < typeFieldWidth; ++j) { + type = (type << 8) | stream.getByte(); + } + // if type field is absent, its default value is 1 + if (typeFieldWidth === 0) { + type = 1; + } + for (j = 0; j < offsetFieldWidth; ++j) { + offset = (offset << 8) | stream.getByte(); + } + for (j = 0; j < generationFieldWidth; ++j) { + generation = (generation << 8) | stream.getByte(); + } + var entry = {}; + entry.offset = offset; + entry.gen = generation; + switch (type) { + case 0: + entry.free = true; + break; + case 1: + entry.uncompressed = true; + break; + case 2: + break; + default: + error('Invalid XRef entry type: ' + type); + } + if (!this.entries[first + i]) { + this.entries[first + i] = entry; + } + } + + streamState.entryNum = 0; + streamState.streamPos = stream.pos; + entryRanges.splice(0, 2); + } + }, + + indexObjects: function XRef_indexObjects() { + // Simple scan through the PDF content to find objects, + // trailers and XRef streams. + var TAB = 0x9, LF = 0xA, CR = 0xD, SPACE = 0x20; + var PERCENT = 0x25, LT = 0x3C; + + function readToken(data, offset) { + var token = '', ch = data[offset]; + while (ch !== LF && ch !== CR && ch !== LT) { + if (++offset >= data.length) { + break; + } + token += String.fromCharCode(ch); + ch = data[offset]; + } + return token; + } + function skipUntil(data, offset, what) { + var length = what.length, dataLength = data.length; + var skipped = 0; + // finding byte sequence + while (offset < dataLength) { + var i = 0; + while (i < length && data[offset + i] === what[i]) { + ++i; + } + if (i >= length) { + break; // sequence found + } + offset++; + skipped++; + } + return skipped; + } + var objRegExp = /^(\d+)\s+(\d+)\s+obj\b/; + var trailerBytes = new Uint8Array([116, 114, 97, 105, 108, 101, 114]); + var startxrefBytes = new Uint8Array([115, 116, 97, 114, 116, 120, 114, + 101, 102]); + var endobjBytes = new Uint8Array([101, 110, 100, 111, 98, 106]); + var xrefBytes = new Uint8Array([47, 88, 82, 101, 102]); + + // Clear out any existing entries, since they may be bogus. + this.entries.length = 0; + + var stream = this.stream; + stream.pos = 0; + var buffer = stream.getBytes(); + var position = stream.start, length = buffer.length; + var trailers = [], xrefStms = []; + while (position < length) { + var ch = buffer[position]; + if (ch === TAB || ch === LF || ch === CR || ch === SPACE) { + ++position; + continue; + } + if (ch === PERCENT) { // %-comment + do { + ++position; + if (position >= length) { + break; + } + ch = buffer[position]; + } while (ch !== LF && ch !== CR); + continue; + } + var token = readToken(buffer, position); + var m; + if (token.indexOf('xref') === 0 && + (token.length === 4 || /\s/.test(token[4]))) { + position += skipUntil(buffer, position, trailerBytes); + trailers.push(position); + position += skipUntil(buffer, position, startxrefBytes); + } else if ((m = objRegExp.exec(token))) { + if (typeof this.entries[m[1]] === 'undefined') { + this.entries[m[1]] = { + offset: position - stream.start, + gen: m[2] | 0, + uncompressed: true + }; + } + var contentLength = skipUntil(buffer, position, endobjBytes) + 7; + var content = buffer.subarray(position, position + contentLength); + + // checking XRef stream suspect + // (it shall have '/XRef' and next char is not a letter) + var xrefTagOffset = skipUntil(content, 0, xrefBytes); + if (xrefTagOffset < contentLength && + content[xrefTagOffset + 5] < 64) { + xrefStms.push(position - stream.start); + this.xrefstms[position - stream.start] = 1; // Avoid recursion + } + + position += contentLength; + } else if (token.indexOf('trailer') === 0 && + (token.length === 7 || /\s/.test(token[7]))) { + trailers.push(position); + position += skipUntil(buffer, position, startxrefBytes); + } else { + position += token.length + 1; + } + } + // reading XRef streams + var i, ii; + for (i = 0, ii = xrefStms.length; i < ii; ++i) { + this.startXRefQueue.push(xrefStms[i]); + this.readXRef(/* recoveryMode */ true); + } + // finding main trailer + var dict; + for (i = 0, ii = trailers.length; i < ii; ++i) { + stream.pos = trailers[i]; + var parser = new Parser(new Lexer(stream), true, this); + var obj = parser.getObj(); + if (!isCmd(obj, 'trailer')) { + continue; + } + // read the trailer dictionary + if (!isDict(dict = parser.getObj())) { + continue; + } + // taking the first one with 'ID' + if (dict.has('ID')) { + return dict; + } + } + // no tailer with 'ID', taking last one (if exists) + if (dict) { + return dict; + } + // nothing helps + // calling error() would reject worker with an UnknownErrorException. + throw new InvalidPDFException('Invalid PDF structure'); + }, + + readXRef: function XRef_readXRef(recoveryMode) { + var stream = this.stream; + + try { + while (this.startXRefQueue.length) { + var startXRef = this.startXRefQueue[0]; + + stream.pos = startXRef + stream.start; + + var parser = new Parser(new Lexer(stream), true, this); + var obj = parser.getObj(); + var dict; + + // Get dictionary + if (isCmd(obj, 'xref')) { + // Parse end-of-file XRef + dict = this.processXRefTable(parser); + if (!this.topDict) { + this.topDict = dict; + } + + // Recursively get other XRefs 'XRefStm', if any + obj = dict.get('XRefStm'); + if (isInt(obj)) { + var pos = obj; + // ignore previously loaded xref streams + // (possible infinite recursion) + if (!(pos in this.xrefstms)) { + this.xrefstms[pos] = 1; + this.startXRefQueue.push(pos); + } + } + } else if (isInt(obj)) { + // Parse in-stream XRef + if (!isInt(parser.getObj()) || + !isCmd(parser.getObj(), 'obj') || + !isStream(obj = parser.getObj())) { + error('Invalid XRef stream'); + } + dict = this.processXRefStream(obj); + if (!this.topDict) { + this.topDict = dict; + } + if (!dict) { + error('Failed to read XRef stream'); + } + } else { + error('Invalid XRef stream header'); + } + + // Recursively get previous dictionary, if any + obj = dict.get('Prev'); + if (isInt(obj)) { + this.startXRefQueue.push(obj); + } else if (isRef(obj)) { + // The spec says Prev must not be a reference, i.e. "/Prev NNN" + // This is a fallback for non-compliant PDFs, i.e. "/Prev NNN 0 R" + this.startXRefQueue.push(obj.num); + } + + this.startXRefQueue.shift(); + } + + return this.topDict; + } catch (e) { + if (e instanceof MissingDataException) { + throw e; + } + info('(while reading XRef): ' + e); + } + + if (recoveryMode) { + return; + } + throw new XRefParseException(); + }, + + getEntry: function XRef_getEntry(i) { + var xrefEntry = this.entries[i]; + if (xrefEntry && !xrefEntry.free && xrefEntry.offset) { + return xrefEntry; + } + return null; + }, + + fetchIfRef: function XRef_fetchIfRef(obj) { + if (!isRef(obj)) { + return obj; + } + return this.fetch(obj); + }, + + fetch: function XRef_fetch(ref, suppressEncryption) { + assert(isRef(ref), 'ref object is not a reference'); + var num = ref.num; + if (num in this.cache) { + var cacheEntry = this.cache[num]; + return cacheEntry; + } + + var xrefEntry = this.getEntry(num); + + // the referenced entry can be free + if (xrefEntry === null) { + return (this.cache[num] = null); + } + + if (xrefEntry.uncompressed) { + xrefEntry = this.fetchUncompressed(ref, xrefEntry, suppressEncryption); + } else { + xrefEntry = this.fetchCompressed(xrefEntry, suppressEncryption); + } + if (isDict(xrefEntry)){ + xrefEntry.objId = ref.toString(); + } else if (isStream(xrefEntry)) { + xrefEntry.dict.objId = ref.toString(); + } + return xrefEntry; + }, + + fetchUncompressed: function XRef_fetchUncompressed(ref, xrefEntry, + suppressEncryption) { + var gen = ref.gen; + var num = ref.num; + if (xrefEntry.gen !== gen) { + error('inconsistent generation in XRef'); + } + var stream = this.stream.makeSubStream(xrefEntry.offset + + this.stream.start); + var parser = new Parser(new Lexer(stream), true, this); + var obj1 = parser.getObj(); + var obj2 = parser.getObj(); + var obj3 = parser.getObj(); + if (!isInt(obj1) || parseInt(obj1, 10) !== num || + !isInt(obj2) || parseInt(obj2, 10) !== gen || + !isCmd(obj3)) { + error('bad XRef entry'); + } + if (!isCmd(obj3, 'obj')) { + // some bad PDFs use "obj1234" and really mean 1234 + if (obj3.cmd.indexOf('obj') === 0) { + num = parseInt(obj3.cmd.substring(3), 10); + if (!isNaN(num)) { + return num; + } + } + error('bad XRef entry'); + } + if (this.encrypt && !suppressEncryption) { + xrefEntry = parser.getObj(this.encrypt.createCipherTransform(num, gen)); + } else { + xrefEntry = parser.getObj(); + } + if (!isStream(xrefEntry)) { + this.cache[num] = xrefEntry; + } + return xrefEntry; + }, + + fetchCompressed: function XRef_fetchCompressed(xrefEntry, + suppressEncryption) { + var tableOffset = xrefEntry.offset; + var stream = this.fetch(new Ref(tableOffset, 0)); + if (!isStream(stream)) { + error('bad ObjStm stream'); + } + var first = stream.dict.get('First'); + var n = stream.dict.get('N'); + if (!isInt(first) || !isInt(n)) { + error('invalid first and n parameters for ObjStm stream'); + } + var parser = new Parser(new Lexer(stream), false, this); + parser.allowStreams = true; + var i, entries = [], num, nums = []; + // read the object numbers to populate cache + for (i = 0; i < n; ++i) { + num = parser.getObj(); + if (!isInt(num)) { + error('invalid object number in the ObjStm stream: ' + num); + } + nums.push(num); + var offset = parser.getObj(); + if (!isInt(offset)) { + error('invalid object offset in the ObjStm stream: ' + offset); + } + } + // read stream objects for cache + for (i = 0; i < n; ++i) { + entries.push(parser.getObj()); + num = nums[i]; + var entry = this.entries[num]; + if (entry && entry.offset === tableOffset && entry.gen === i) { + this.cache[num] = entries[i]; + } + } + xrefEntry = entries[xrefEntry.gen]; + if (xrefEntry === undefined) { + error('bad XRef entry for compressed object'); + } + return xrefEntry; + }, + + fetchIfRefAsync: function XRef_fetchIfRefAsync(obj) { + if (!isRef(obj)) { + return Promise.resolve(obj); + } + return this.fetchAsync(obj); + }, + + fetchAsync: function XRef_fetchAsync(ref, suppressEncryption) { + var streamManager = this.stream.manager; + var xref = this; + return new Promise(function tryFetch(resolve, reject) { + try { + resolve(xref.fetch(ref, suppressEncryption)); + } catch (e) { + if (e instanceof MissingDataException) { + streamManager.requestRange(e.begin, e.end).then(function () { + tryFetch(resolve, reject); + }, reject); + return; + } + reject(e); + } + }); + }, + + getCatalogObj: function XRef_getCatalogObj() { + return this.root; + } + }; + + return XRef; +})(); + +/** + * A NameTree is like a Dict but has some advantageous properties, see the + * spec (7.9.6) for more details. + * TODO: implement all the Dict functions and make this more efficent. + */ +var NameTree = (function NameTreeClosure() { + function NameTree(root, xref) { + this.root = root; + this.xref = xref; + } + + NameTree.prototype = { + getAll: function NameTree_getAll() { + var dict = {}; + if (!this.root) { + return dict; + } + var xref = this.xref; + // reading name tree + var processed = new RefSet(); + processed.put(this.root); + var queue = [this.root]; + while (queue.length > 0) { + var i, n; + var obj = xref.fetchIfRef(queue.shift()); + if (!isDict(obj)) { + continue; + } + if (obj.has('Kids')) { + var kids = obj.get('Kids'); + for (i = 0, n = kids.length; i < n; i++) { + var kid = kids[i]; + if (processed.has(kid)) { + error('invalid destinations'); + } + queue.push(kid); + processed.put(kid); + } + continue; + } + var names = obj.get('Names'); + if (names) { + for (i = 0, n = names.length; i < n; i += 2) { + dict[xref.fetchIfRef(names[i])] = xref.fetchIfRef(names[i + 1]); + } + } + } + return dict; + }, + + get: function NameTree_get(destinationId) { + if (!this.root) { + return null; + } + + var xref = this.xref; + var kidsOrNames = xref.fetchIfRef(this.root); + var loopCount = 0; + var MAX_NAMES_LEVELS = 10; + var l, r, m; + + // Perform a binary search to quickly find the entry that + // contains the named destination we are looking for. + while (kidsOrNames.has('Kids')) { + loopCount++; + if (loopCount > MAX_NAMES_LEVELS) { + warn('Search depth limit for named destionations has been reached.'); + return null; + } + + var kids = kidsOrNames.get('Kids'); + if (!isArray(kids)) { + return null; + } + + l = 0; + r = kids.length - 1; + while (l <= r) { + m = (l + r) >> 1; + var kid = xref.fetchIfRef(kids[m]); + var limits = kid.get('Limits'); + + if (destinationId < xref.fetchIfRef(limits[0])) { + r = m - 1; + } else if (destinationId > xref.fetchIfRef(limits[1])) { + l = m + 1; + } else { + kidsOrNames = xref.fetchIfRef(kids[m]); + break; + } + } + if (l > r) { + return null; + } + } + + // If we get here, then we have found the right entry. Now + // go through the named destinations in the Named dictionary + // until we find the exact destination we're looking for. + var names = kidsOrNames.get('Names'); + if (isArray(names)) { + // Perform a binary search to reduce the lookup time. + l = 0; + r = names.length - 2; + while (l <= r) { + // Check only even indices (0, 2, 4, ...) because the + // odd indices contain the actual D array. + m = (l + r) & ~1; + if (destinationId < xref.fetchIfRef(names[m])) { + r = m - 2; + } else if (destinationId > xref.fetchIfRef(names[m])) { + l = m + 2; + } else { + return xref.fetchIfRef(names[m + 1]); + } + } + } + return null; + } + }; + return NameTree; +})(); + +/** + * "A PDF file can refer to the contents of another file by using a File + * Specification (PDF 1.1)", see the spec (7.11) for more details. + * NOTE: Only embedded files are supported (as part of the attachments support) + * TODO: support the 'URL' file system (with caching if !/V), portable + * collections attributes and related files (/RF) + */ +var FileSpec = (function FileSpecClosure() { + function FileSpec(root, xref) { + if (!root || !isDict(root)) { + return; + } + this.xref = xref; + this.root = root; + if (root.has('FS')) { + this.fs = root.get('FS'); + } + this.description = root.has('Desc') ? + stringToPDFString(root.get('Desc')) : + ''; + if (root.has('RF')) { + warn('Related file specifications are not supported'); + } + this.contentAvailable = true; + if (!root.has('EF')) { + this.contentAvailable = false; + warn('Non-embedded file specifications are not supported'); + } + } + + function pickPlatformItem(dict) { + // Look for the filename in this order: + // UF, F, Unix, Mac, DOS + if (dict.has('UF')) { + return dict.get('UF'); + } else if (dict.has('F')) { + return dict.get('F'); + } else if (dict.has('Unix')) { + return dict.get('Unix'); + } else if (dict.has('Mac')) { + return dict.get('Mac'); + } else if (dict.has('DOS')) { + return dict.get('DOS'); + } else { + return null; + } + } + + FileSpec.prototype = { + get filename() { + if (!this._filename && this.root) { + var filename = pickPlatformItem(this.root) || 'unnamed'; + this._filename = stringToPDFString(filename). + replace(/\\\\/g, '\\'). + replace(/\\\//g, '/'). + replace(/\\/g, '/'); + } + return this._filename; + }, + get content() { + if (!this.contentAvailable) { + return null; + } + if (!this.contentRef && this.root) { + this.contentRef = pickPlatformItem(this.root.get('EF')); + } + var content = null; + if (this.contentRef) { + var xref = this.xref; + var fileObj = xref.fetchIfRef(this.contentRef); + if (fileObj && isStream(fileObj)) { + content = fileObj.getBytes(); + } else { + warn('Embedded file specification points to non-existing/invalid ' + + 'content'); + } + } else { + warn('Embedded file specification does not have a content'); + } + return content; + }, + get serializable() { + return { + filename: this.filename, + content: this.content + }; + } + }; + return FileSpec; +})(); + +/** + * A helper for loading missing data in object graphs. It traverses the graph + * depth first and queues up any objects that have missing data. Once it has + * has traversed as many objects that are available it attempts to bundle the + * missing data requests and then resume from the nodes that weren't ready. + * + * NOTE: It provides protection from circular references by keeping track of + * of loaded references. However, you must be careful not to load any graphs + * that have references to the catalog or other pages since that will cause the + * entire PDF document object graph to be traversed. + */ +var ObjectLoader = (function() { + function mayHaveChildren(value) { + return isRef(value) || isDict(value) || isArray(value) || isStream(value); + } + + function addChildren(node, nodesToVisit) { + var value; + if (isDict(node) || isStream(node)) { + var map; + if (isDict(node)) { + map = node.map; + } else { + map = node.dict.map; + } + for (var key in map) { + value = map[key]; + if (mayHaveChildren(value)) { + nodesToVisit.push(value); + } + } + } else if (isArray(node)) { + for (var i = 0, ii = node.length; i < ii; i++) { + value = node[i]; + if (mayHaveChildren(value)) { + nodesToVisit.push(value); + } + } + } + } + + function ObjectLoader(obj, keys, xref) { + this.obj = obj; + this.keys = keys; + this.xref = xref; + this.refSet = null; + this.capability = null; + } + + ObjectLoader.prototype = { + load: function ObjectLoader_load() { + var keys = this.keys; + this.capability = createPromiseCapability(); + // Don't walk the graph if all the data is already loaded. + if (!(this.xref.stream instanceof ChunkedStream) || + this.xref.stream.getMissingChunks().length === 0) { + this.capability.resolve(); + return this.capability.promise; + } + + this.refSet = new RefSet(); + // Setup the initial nodes to visit. + var nodesToVisit = []; + for (var i = 0; i < keys.length; i++) { + nodesToVisit.push(this.obj[keys[i]]); + } + + this._walk(nodesToVisit); + return this.capability.promise; + }, + + _walk: function ObjectLoader_walk(nodesToVisit) { + var nodesToRevisit = []; + var pendingRequests = []; + // DFS walk of the object graph. + while (nodesToVisit.length) { + var currentNode = nodesToVisit.pop(); + + // Only references or chunked streams can cause missing data exceptions. + if (isRef(currentNode)) { + // Skip nodes that have already been visited. + if (this.refSet.has(currentNode)) { + continue; + } + try { + var ref = currentNode; + this.refSet.put(ref); + currentNode = this.xref.fetch(currentNode); + } catch (e) { + if (!(e instanceof MissingDataException)) { + throw e; + } + nodesToRevisit.push(currentNode); + pendingRequests.push({ begin: e.begin, end: e.end }); + } + } + if (currentNode && currentNode.getBaseStreams) { + var baseStreams = currentNode.getBaseStreams(); + var foundMissingData = false; + for (var i = 0; i < baseStreams.length; i++) { + var stream = baseStreams[i]; + if (stream.getMissingChunks && stream.getMissingChunks().length) { + foundMissingData = true; + pendingRequests.push({ + begin: stream.start, + end: stream.end + }); + } + } + if (foundMissingData) { + nodesToRevisit.push(currentNode); + } + } + + addChildren(currentNode, nodesToVisit); + } + + if (pendingRequests.length) { + this.xref.stream.manager.requestRanges(pendingRequests).then( + function pendingRequestCallback() { + nodesToVisit = nodesToRevisit; + for (var i = 0; i < nodesToRevisit.length; i++) { + var node = nodesToRevisit[i]; + // Remove any reference nodes from the currrent refset so they + // aren't skipped when we revist them. + if (isRef(node)) { + this.refSet.remove(node); + } + } + this._walk(nodesToVisit); + }.bind(this), this.capability.reject); + return; + } + // Everything is loaded. + this.refSet = null; + this.capability.resolve(); + } + }; + + return ObjectLoader; +})(); + +exports.Catalog = Catalog; +exports.ObjectLoader = ObjectLoader; +exports.XRef = XRef; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCorePsParser = {}), root.pdfjsSharedUtil, + root.pdfjsCoreParser); + } +}(this, function (exports, sharedUtil, coreParser) { + +var error = sharedUtil.error; +var EOF = coreParser.EOF; +var Lexer = coreParser.Lexer; + +var PostScriptParser = (function PostScriptParserClosure() { + function PostScriptParser(lexer) { + this.lexer = lexer; + this.operators = []; + this.token = null; + this.prev = null; + } + PostScriptParser.prototype = { + nextToken: function PostScriptParser_nextToken() { + this.prev = this.token; + this.token = this.lexer.getToken(); + }, + accept: function PostScriptParser_accept(type) { + if (this.token.type === type) { + this.nextToken(); + return true; + } + return false; + }, + expect: function PostScriptParser_expect(type) { + if (this.accept(type)) { + return true; + } + error('Unexpected symbol: found ' + this.token.type + ' expected ' + + type + '.'); + }, + parse: function PostScriptParser_parse() { + this.nextToken(); + this.expect(PostScriptTokenTypes.LBRACE); + this.parseBlock(); + this.expect(PostScriptTokenTypes.RBRACE); + return this.operators; + }, + parseBlock: function PostScriptParser_parseBlock() { + while (true) { + if (this.accept(PostScriptTokenTypes.NUMBER)) { + this.operators.push(this.prev.value); + } else if (this.accept(PostScriptTokenTypes.OPERATOR)) { + this.operators.push(this.prev.value); + } else if (this.accept(PostScriptTokenTypes.LBRACE)) { + this.parseCondition(); + } else { + return; + } + } + }, + parseCondition: function PostScriptParser_parseCondition() { + // Add two place holders that will be updated later + var conditionLocation = this.operators.length; + this.operators.push(null, null); + + this.parseBlock(); + this.expect(PostScriptTokenTypes.RBRACE); + if (this.accept(PostScriptTokenTypes.IF)) { + // The true block is right after the 'if' so it just falls through on + // true else it jumps and skips the true block. + this.operators[conditionLocation] = this.operators.length; + this.operators[conditionLocation + 1] = 'jz'; + } else if (this.accept(PostScriptTokenTypes.LBRACE)) { + var jumpLocation = this.operators.length; + this.operators.push(null, null); + var endOfTrue = this.operators.length; + this.parseBlock(); + this.expect(PostScriptTokenTypes.RBRACE); + this.expect(PostScriptTokenTypes.IFELSE); + // The jump is added at the end of the true block to skip the false + // block. + this.operators[jumpLocation] = this.operators.length; + this.operators[jumpLocation + 1] = 'j'; + + this.operators[conditionLocation] = endOfTrue; + this.operators[conditionLocation + 1] = 'jz'; + } else { + error('PS Function: error parsing conditional.'); + } + } + }; + return PostScriptParser; +})(); + +var PostScriptTokenTypes = { + LBRACE: 0, + RBRACE: 1, + NUMBER: 2, + OPERATOR: 3, + IF: 4, + IFELSE: 5 +}; + +var PostScriptToken = (function PostScriptTokenClosure() { + function PostScriptToken(type, value) { + this.type = type; + this.value = value; + } + + var opCache = {}; + + PostScriptToken.getOperator = function PostScriptToken_getOperator(op) { + var opValue = opCache[op]; + if (opValue) { + return opValue; + } + return opCache[op] = new PostScriptToken(PostScriptTokenTypes.OPERATOR, op); + }; + + PostScriptToken.LBRACE = new PostScriptToken(PostScriptTokenTypes.LBRACE, + '{'); + PostScriptToken.RBRACE = new PostScriptToken(PostScriptTokenTypes.RBRACE, + '}'); + PostScriptToken.IF = new PostScriptToken(PostScriptTokenTypes.IF, 'IF'); + PostScriptToken.IFELSE = new PostScriptToken(PostScriptTokenTypes.IFELSE, + 'IFELSE'); + return PostScriptToken; +})(); + +var PostScriptLexer = (function PostScriptLexerClosure() { + function PostScriptLexer(stream) { + this.stream = stream; + this.nextChar(); + + this.strBuf = []; + } + PostScriptLexer.prototype = { + nextChar: function PostScriptLexer_nextChar() { + return (this.currentChar = this.stream.getByte()); + }, + getToken: function PostScriptLexer_getToken() { + var comment = false; + var ch = this.currentChar; + + // skip comments + while (true) { + if (ch < 0) { + return EOF; + } + + if (comment) { + if (ch === 0x0A || ch === 0x0D) { + comment = false; + } + } else if (ch === 0x25) { // '%' + comment = true; + } else if (!Lexer.isSpace(ch)) { + break; + } + ch = this.nextChar(); + } + switch (ch | 0) { + case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: // '0'-'4' + case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: // '5'-'9' + case 0x2B: case 0x2D: case 0x2E: // '+', '-', '.' + return new PostScriptToken(PostScriptTokenTypes.NUMBER, + this.getNumber()); + case 0x7B: // '{' + this.nextChar(); + return PostScriptToken.LBRACE; + case 0x7D: // '}' + this.nextChar(); + return PostScriptToken.RBRACE; + } + // operator + var strBuf = this.strBuf; + strBuf.length = 0; + strBuf[0] = String.fromCharCode(ch); + + while ((ch = this.nextChar()) >= 0 && // and 'A'-'Z', 'a'-'z' + ((ch >= 0x41 && ch <= 0x5A) || (ch >= 0x61 && ch <= 0x7A))) { + strBuf.push(String.fromCharCode(ch)); + } + var str = strBuf.join(''); + switch (str.toLowerCase()) { + case 'if': + return PostScriptToken.IF; + case 'ifelse': + return PostScriptToken.IFELSE; + default: + return PostScriptToken.getOperator(str); + } + }, + getNumber: function PostScriptLexer_getNumber() { + var ch = this.currentChar; + var strBuf = this.strBuf; + strBuf.length = 0; + strBuf[0] = String.fromCharCode(ch); + + while ((ch = this.nextChar()) >= 0) { + if ((ch >= 0x30 && ch <= 0x39) || // '0'-'9' + ch === 0x2D || ch === 0x2E) { // '-', '.' + strBuf.push(String.fromCharCode(ch)); + } else { + break; + } + } + var value = parseFloat(strBuf.join('')); + if (isNaN(value)) { + error('Invalid floating point number: ' + value); + } + return value; + } + }; + return PostScriptLexer; +})(); + +exports.PostScriptLexer = PostScriptLexer; +exports.PostScriptParser = PostScriptParser; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreFonts = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreStream, root.pdfjsCoreParser, + root.pdfjsCoreCMap, root.pdfjsCoreGlyphList, root.pdfjsCoreCharsets, + root.pdfjsCoreFontRenderer); + } +}(this, function (exports, sharedUtil, corePrimitives, coreStream, coreParser, + coreCMap, coreGlyphList, coreCharsets, coreFontRenderer) { + +var FONT_IDENTITY_MATRIX = sharedUtil.FONT_IDENTITY_MATRIX; +var FontType = sharedUtil.FontType; +var Util = sharedUtil.Util; +var assert = sharedUtil.assert; +var bytesToString = sharedUtil.bytesToString; +var error = sharedUtil.error; +var info = sharedUtil.info; +var isArray = sharedUtil.isArray; +var isInt = sharedUtil.isInt; +var isNum = sharedUtil.isNum; +var readUint32 = sharedUtil.readUint32; +var shadow = sharedUtil.shadow; +var stringToBytes = sharedUtil.stringToBytes; +var string32 = sharedUtil.string32; +var warn = sharedUtil.warn; +var Name = corePrimitives.Name; +var Stream = coreStream.Stream; +var Lexer = coreParser.Lexer; +var CMapFactory = coreCMap.CMapFactory; +var IdentityCMap = coreCMap.IdentityCMap; +var GlyphsUnicode = coreGlyphList.GlyphsUnicode; +var DingbatsGlyphsUnicode = coreGlyphList.DingbatsGlyphsUnicode; +var ISOAdobeCharset = coreCharsets.ISOAdobeCharset; +var ExpertCharset = coreCharsets.ExpertCharset; +var ExpertSubsetCharset = coreCharsets.ExpertSubsetCharset; +var FontRendererFactory = coreFontRenderer.FontRendererFactory; // Unicode Private Use Area var PRIVATE_USE_OFFSET_START = 0xE000; @@ -21463,9 +31310,13 @@ var CFFCompiler = (function CFFCompilerClosure() { return CFFCompiler; })(); +function _enableSeacAnalysis(enabled) { + exports.SEAC_ANALYSIS_ENABLED = SEAC_ANALYSIS_ENABLED = enabled; +} + // Workaround for seac on Windows. (function checkSeacSupport() { - if (/Windows/.test(navigator.userAgent)) { + if (typeof navigator !== 'undefined' && /Windows/.test(navigator.userAgent)) { SEAC_ANALYSIS_ENABLED = true; } })(); @@ -21474,5116 +31325,2470 @@ var CFFCompiler = (function CFFCompilerClosure() { // http://code.google.com/p/chromium/issues/detail?id=122465 // https://github.com/mozilla/pdf.js/issues/1689 (function checkChromeWindows() { - if (/Windows.*Chrome/.test(navigator.userAgent)) { + if (typeof navigator !== 'undefined' && + /Windows.*Chrome/.test(navigator.userAgent)) { SKIP_PRIVATE_USE_RANGE_F000_TO_F01F = true; } })(); +exports.SEAC_ANALYSIS_ENABLED = SEAC_ANALYSIS_ENABLED; +exports.CFFCompiler = CFFCompiler; +exports.CFFIndex = CFFIndex; +exports.CFFParser = CFFParser; +exports.CFFStrings = CFFStrings; +exports.Encodings = Encodings; +exports.ErrorFont = ErrorFont; +exports.FontFlags = FontFlags; +exports.Font = Font; +exports.IdentityToUnicodeMap = IdentityToUnicodeMap; +exports.NormalizedUnicodes = NormalizedUnicodes; +exports.ToUnicodeMap = ToUnicodeMap; +exports.Type1Parser = Type1Parser; +exports.getFontType = getFontType; +exports.reverseIfRtl = reverseIfRtl; +exports.serifFonts = serifFonts; +exports.symbolsFonts = symbolsFonts; +exports.stdFontMap = stdFontMap; +exports._enableSeacAnalysis = _enableSeacAnalysis; -var FontRendererFactory = (function FontRendererFactoryClosure() { - function getLong(data, offset) { - return (data[offset] << 24) | (data[offset + 1] << 16) | - (data[offset + 2] << 8) | data[offset + 3]; +// TODO refactor to remove cyclic dependency on font_renderer.js +coreFontRenderer._setCoreFonts(exports); +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreFunction = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCorePsParser); } +}(this, function (exports, sharedUtil, corePrimitives, corePsParser) { - function getUshort(data, offset) { - return (data[offset] << 8) | data[offset + 1]; - } - - function parseCmap(data, start, end) { - var offset = (getUshort(data, start + 2) === 1 ? - getLong(data, start + 8) : getLong(data, start + 16)); - var format = getUshort(data, start + offset); - var length, ranges, p, i; - if (format === 4) { - length = getUshort(data, start + offset + 2); - var segCount = getUshort(data, start + offset + 6) >> 1; - p = start + offset + 14; - ranges = []; - for (i = 0; i < segCount; i++, p += 2) { - ranges[i] = {end: getUshort(data, p)}; - } - p += 2; - for (i = 0; i < segCount; i++, p += 2) { - ranges[i].start = getUshort(data, p); - } - for (i = 0; i < segCount; i++, p += 2) { - ranges[i].idDelta = getUshort(data, p); - } - for (i = 0; i < segCount; i++, p += 2) { - var idOffset = getUshort(data, p); - if (idOffset === 0) { - continue; - } - ranges[i].ids = []; - for (var j = 0, jj = ranges[i].end - ranges[i].start + 1; j < jj; j++) { - ranges[i].ids[j] = getUshort(data, p + idOffset); - idOffset += 2; - } - } - return ranges; - } else if (format === 12) { - length = getLong(data, start + offset + 4); - var groups = getLong(data, start + offset + 12); - p = start + offset + 16; - ranges = []; - for (i = 0; i < groups; i++) { - ranges.push({ - start: getLong(data, p), - end: getLong(data, p + 4), - idDelta: getLong(data, p + 8) - getLong(data, p) - }); - p += 12; - } - return ranges; - } - error('not supported cmap: ' + format); - } - - function parseCff(data, start, end) { - var properties = {}; - var parser = new CFFParser(new Stream(data, start, end - start), - properties); - var cff = parser.parse(); - return { - glyphs: cff.charStrings.objects, - subrs: (cff.topDict.privateDict && cff.topDict.privateDict.subrsIndex && - cff.topDict.privateDict.subrsIndex.objects), - gsubrs: cff.globalSubrIndex && cff.globalSubrIndex.objects - }; - } - - function parseGlyfTable(glyf, loca, isGlyphLocationsLong) { - var itemSize, itemDecode; - if (isGlyphLocationsLong) { - itemSize = 4; - itemDecode = function fontItemDecodeLong(data, offset) { - return (data[offset] << 24) | (data[offset + 1] << 16) | - (data[offset + 2] << 8) | data[offset + 3]; - }; - } else { - itemSize = 2; - itemDecode = function fontItemDecode(data, offset) { - return (data[offset] << 9) | (data[offset + 1] << 1); - }; - } - var glyphs = []; - var startOffset = itemDecode(loca, 0); - for (var j = itemSize; j < loca.length; j += itemSize) { - var endOffset = itemDecode(loca, j); - glyphs.push(glyf.subarray(startOffset, endOffset)); - startOffset = endOffset; - } - return glyphs; - } - - function lookupCmap(ranges, unicode) { - var code = unicode.charCodeAt(0); - var l = 0, r = ranges.length - 1; - while (l < r) { - var c = (l + r + 1) >> 1; - if (code < ranges[c].start) { - r = c - 1; - } else { - l = c; - } - } - if (ranges[l].start <= code && code <= ranges[l].end) { - return (ranges[l].idDelta + (ranges[l].ids ? - ranges[l].ids[code - ranges[l].start] : code)) & 0xFFFF; - } - return 0; - } - - function compileGlyf(code, cmds, font) { - function moveTo(x, y) { - cmds.push({cmd: 'moveTo', args: [x, y]}); - } - function lineTo(x, y) { - cmds.push({cmd: 'lineTo', args: [x, y]}); - } - function quadraticCurveTo(xa, ya, x, y) { - cmds.push({cmd: 'quadraticCurveTo', args: [xa, ya, x, y]}); - } - - var i = 0; - var numberOfContours = ((code[i] << 24) | (code[i + 1] << 16)) >> 16; - var flags; - var x = 0, y = 0; - i += 10; - if (numberOfContours < 0) { - // composite glyph - do { - flags = (code[i] << 8) | code[i + 1]; - var glyphIndex = (code[i + 2] << 8) | code[i + 3]; - i += 4; - var arg1, arg2; - if ((flags & 0x01)) { - arg1 = ((code[i] << 24) | (code[i + 1] << 16)) >> 16; - arg2 = ((code[i + 2] << 24) | (code[i + 3] << 16)) >> 16; - i += 4; - } else { - arg1 = code[i++]; arg2 = code[i++]; - } - if ((flags & 0x02)) { - x = arg1; - y = arg2; - } else { - x = 0; y = 0; // TODO "they are points" ? - } - var scaleX = 1, scaleY = 1, scale01 = 0, scale10 = 0; - if ((flags & 0x08)) { - scaleX = - scaleY = ((code[i] << 24) | (code[i + 1] << 16)) / 1073741824; - i += 2; - } else if ((flags & 0x40)) { - scaleX = ((code[i] << 24) | (code[i + 1] << 16)) / 1073741824; - scaleY = ((code[i + 2] << 24) | (code[i + 3] << 16)) / 1073741824; - i += 4; - } else if ((flags & 0x80)) { - scaleX = ((code[i] << 24) | (code[i + 1] << 16)) / 1073741824; - scale01 = ((code[i + 2] << 24) | (code[i + 3] << 16)) / 1073741824; - scale10 = ((code[i + 4] << 24) | (code[i + 5] << 16)) / 1073741824; - scaleY = ((code[i + 6] << 24) | (code[i + 7] << 16)) / 1073741824; - i += 8; - } - var subglyph = font.glyphs[glyphIndex]; - if (subglyph) { - cmds.push({cmd: 'save'}); - cmds.push({cmd: 'transform', - args: [scaleX, scale01, scale10, scaleY, x, y]}); - compileGlyf(subglyph, cmds, font); - cmds.push({cmd: 'restore'}); - } - } while ((flags & 0x20)); - } else { - // simple glyph - var endPtsOfContours = []; - var j, jj; - for (j = 0; j < numberOfContours; j++) { - endPtsOfContours.push((code[i] << 8) | code[i + 1]); - i += 2; - } - var instructionLength = (code[i] << 8) | code[i + 1]; - i += 2 + instructionLength; // skipping the instructions - var numberOfPoints = endPtsOfContours[endPtsOfContours.length - 1] + 1; - var points = []; - while (points.length < numberOfPoints) { - flags = code[i++]; - var repeat = 1; - if ((flags & 0x08)) { - repeat += code[i++]; - } - while (repeat-- > 0) { - points.push({flags: flags}); - } - } - for (j = 0; j < numberOfPoints; j++) { - switch (points[j].flags & 0x12) { - case 0x00: - x += ((code[i] << 24) | (code[i + 1] << 16)) >> 16; - i += 2; - break; - case 0x02: - x -= code[i++]; - break; - case 0x12: - x += code[i++]; - break; - } - points[j].x = x; - } - for (j = 0; j < numberOfPoints; j++) { - switch (points[j].flags & 0x24) { - case 0x00: - y += ((code[i] << 24) | (code[i + 1] << 16)) >> 16; - i += 2; - break; - case 0x04: - y -= code[i++]; - break; - case 0x24: - y += code[i++]; - break; - } - points[j].y = y; - } - - var startPoint = 0; - for (i = 0; i < numberOfContours; i++) { - var endPoint = endPtsOfContours[i]; - // contours might have implicit points, which is located in the middle - // between two neighboring off-curve points - var contour = points.slice(startPoint, endPoint + 1); - if ((contour[0].flags & 1)) { - contour.push(contour[0]); // using start point at the contour end - } else if ((contour[contour.length - 1].flags & 1)) { - // first is off-curve point, trying to use one from the end - contour.unshift(contour[contour.length - 1]); - } else { - // start and end are off-curve points, creating implicit one - var p = { - flags: 1, - x: (contour[0].x + contour[contour.length - 1].x) / 2, - y: (contour[0].y + contour[contour.length - 1].y) / 2 - }; - contour.unshift(p); - contour.push(p); - } - moveTo(contour[0].x, contour[0].y); - for (j = 1, jj = contour.length; j < jj; j++) { - if ((contour[j].flags & 1)) { - lineTo(contour[j].x, contour[j].y); - } else if ((contour[j + 1].flags & 1)){ - quadraticCurveTo(contour[j].x, contour[j].y, - contour[j + 1].x, contour[j + 1].y); - j++; - } else { - quadraticCurveTo(contour[j].x, contour[j].y, - (contour[j].x + contour[j + 1].x) / 2, - (contour[j].y + contour[j + 1].y) / 2); - } - } - startPoint = endPoint + 1; - } - } - } - - function compileCharString(code, cmds, font) { - var stack = []; - var x = 0, y = 0; - var stems = 0; - - function moveTo(x, y) { - cmds.push({cmd: 'moveTo', args: [x, y]}); - } - function lineTo(x, y) { - cmds.push({cmd: 'lineTo', args: [x, y]}); - } - function bezierCurveTo(x1, y1, x2, y2, x, y) { - cmds.push({cmd: 'bezierCurveTo', args: [x1, y1, x2, y2, x, y]}); - } - - function parse(code) { - var i = 0; - while (i < code.length) { - var stackClean = false; - var v = code[i++]; - var xa, xb, ya, yb, y1, y2, y3, n, subrCode; - switch (v) { - case 1: // hstem - stems += stack.length >> 1; - stackClean = true; - break; - case 3: // vstem - stems += stack.length >> 1; - stackClean = true; - break; - case 4: // vmoveto - y += stack.pop(); - moveTo(x, y); - stackClean = true; - break; - case 5: // rlineto - while (stack.length > 0) { - x += stack.shift(); - y += stack.shift(); - lineTo(x, y); - } - break; - case 6: // hlineto - while (stack.length > 0) { - x += stack.shift(); - lineTo(x, y); - if (stack.length === 0) { - break; - } - y += stack.shift(); - lineTo(x, y); - } - break; - case 7: // vlineto - while (stack.length > 0) { - y += stack.shift(); - lineTo(x, y); - if (stack.length === 0) { - break; - } - x += stack.shift(); - lineTo(x, y); - } - break; - case 8: // rrcurveto - while (stack.length > 0) { - xa = x + stack.shift(); ya = y + stack.shift(); - xb = xa + stack.shift(); yb = ya + stack.shift(); - x = xb + stack.shift(); y = yb + stack.shift(); - bezierCurveTo(xa, ya, xb, yb, x, y); - } - break; - case 10: // callsubr - n = stack.pop() + font.subrsBias; - subrCode = font.subrs[n]; - if (subrCode) { - parse(subrCode); - } - break; - case 11: // return - return; - case 12: - v = code[i++]; - switch (v) { - case 34: // flex - xa = x + stack.shift(); - xb = xa + stack.shift(); y1 = y + stack.shift(); - x = xb + stack.shift(); - bezierCurveTo(xa, y, xb, y1, x, y1); - xa = x + stack.shift(); - xb = xa + stack.shift(); - x = xb + stack.shift(); - bezierCurveTo(xa, y1, xb, y, x, y); - break; - case 35: // flex - xa = x + stack.shift(); ya = y + stack.shift(); - xb = xa + stack.shift(); yb = ya + stack.shift(); - x = xb + stack.shift(); y = yb + stack.shift(); - bezierCurveTo(xa, ya, xb, yb, x, y); - xa = x + stack.shift(); ya = y + stack.shift(); - xb = xa + stack.shift(); yb = ya + stack.shift(); - x = xb + stack.shift(); y = yb + stack.shift(); - bezierCurveTo(xa, ya, xb, yb, x, y); - stack.pop(); // fd - break; - case 36: // hflex1 - xa = x + stack.shift(); y1 = y + stack.shift(); - xb = xa + stack.shift(); y2 = y1 + stack.shift(); - x = xb + stack.shift(); - bezierCurveTo(xa, y1, xb, y2, x, y2); - xa = x + stack.shift(); - xb = xa + stack.shift(); y3 = y2 + stack.shift(); - x = xb + stack.shift(); - bezierCurveTo(xa, y2, xb, y3, x, y); - break; - case 37: // flex1 - var x0 = x, y0 = y; - xa = x + stack.shift(); ya = y + stack.shift(); - xb = xa + stack.shift(); yb = ya + stack.shift(); - x = xb + stack.shift(); y = yb + stack.shift(); - bezierCurveTo(xa, ya, xb, yb, x, y); - xa = x + stack.shift(); ya = y + stack.shift(); - xb = xa + stack.shift(); yb = ya + stack.shift(); - x = xb; y = yb; - if (Math.abs(x - x0) > Math.abs(y - y0)) { - x += stack.shift(); - } else { - y += stack.shift(); - } - bezierCurveTo(xa, ya, xb, yb, x, y); - break; - default: - error('unknown operator: 12 ' + v); - } - break; - case 14: // endchar - if (stack.length >= 4) { - var achar = stack.pop(); - var bchar = stack.pop(); - y = stack.pop(); - x = stack.pop(); - cmds.push({cmd: 'save'}); - cmds.push({cmd: 'translate', args: [x, y]}); - var gid = lookupCmap(font.cmap, String.fromCharCode( - font.glyphNameMap[Encodings.StandardEncoding[achar]])); - compileCharString(font.glyphs[gid], cmds, font); - cmds.push({cmd: 'restore'}); - - gid = lookupCmap(font.cmap, String.fromCharCode( - font.glyphNameMap[Encodings.StandardEncoding[bchar]])); - compileCharString(font.glyphs[gid], cmds, font); - } - return; - case 18: // hstemhm - stems += stack.length >> 1; - stackClean = true; - break; - case 19: // hintmask - stems += stack.length >> 1; - i += (stems + 7) >> 3; - stackClean = true; - break; - case 20: // cntrmask - stems += stack.length >> 1; - i += (stems + 7) >> 3; - stackClean = true; - break; - case 21: // rmoveto - y += stack.pop(); - x += stack.pop(); - moveTo(x, y); - stackClean = true; - break; - case 22: // hmoveto - x += stack.pop(); - moveTo(x, y); - stackClean = true; - break; - case 23: // vstemhm - stems += stack.length >> 1; - stackClean = true; - break; - case 24: // rcurveline - while (stack.length > 2) { - xa = x + stack.shift(); ya = y + stack.shift(); - xb = xa + stack.shift(); yb = ya + stack.shift(); - x = xb + stack.shift(); y = yb + stack.shift(); - bezierCurveTo(xa, ya, xb, yb, x, y); - } - x += stack.shift(); - y += stack.shift(); - lineTo(x, y); - break; - case 25: // rlinecurve - while (stack.length > 6) { - x += stack.shift(); - y += stack.shift(); - lineTo(x, y); - } - xa = x + stack.shift(); ya = y + stack.shift(); - xb = xa + stack.shift(); yb = ya + stack.shift(); - x = xb + stack.shift(); y = yb + stack.shift(); - bezierCurveTo(xa, ya, xb, yb, x, y); - break; - case 26: // vvcurveto - if (stack.length % 2) { - x += stack.shift(); - } - while (stack.length > 0) { - xa = x; ya = y + stack.shift(); - xb = xa + stack.shift(); yb = ya + stack.shift(); - x = xb; y = yb + stack.shift(); - bezierCurveTo(xa, ya, xb, yb, x, y); - } - break; - case 27: // hhcurveto - if (stack.length % 2) { - y += stack.shift(); - } - while (stack.length > 0) { - xa = x + stack.shift(); ya = y; - xb = xa + stack.shift(); yb = ya + stack.shift(); - x = xb + stack.shift(); y = yb; - bezierCurveTo(xa, ya, xb, yb, x, y); - } - break; - case 28: - stack.push(((code[i] << 24) | (code[i + 1] << 16)) >> 16); - i += 2; - break; - case 29: // callgsubr - n = stack.pop() + font.gsubrsBias; - subrCode = font.gsubrs[n]; - if (subrCode) { - parse(subrCode); - } - break; - case 30: // vhcurveto - while (stack.length > 0) { - xa = x; ya = y + stack.shift(); - xb = xa + stack.shift(); yb = ya + stack.shift(); - x = xb + stack.shift(); - y = yb + (stack.length === 1 ? stack.shift() : 0); - bezierCurveTo(xa, ya, xb, yb, x, y); - if (stack.length === 0) { - break; - } - - xa = x + stack.shift(); ya = y; - xb = xa + stack.shift(); yb = ya + stack.shift(); - y = yb + stack.shift(); - x = xb + (stack.length === 1 ? stack.shift() : 0); - bezierCurveTo(xa, ya, xb, yb, x, y); - } - break; - case 31: // hvcurveto - while (stack.length > 0) { - xa = x + stack.shift(); ya = y; - xb = xa + stack.shift(); yb = ya + stack.shift(); - y = yb + stack.shift(); - x = xb + (stack.length === 1 ? stack.shift() : 0); - bezierCurveTo(xa, ya, xb, yb, x, y); - if (stack.length === 0) { - break; - } - - xa = x; ya = y + stack.shift(); - xb = xa + stack.shift(); yb = ya + stack.shift(); - x = xb + stack.shift(); - y = yb + (stack.length === 1 ? stack.shift() : 0); - bezierCurveTo(xa, ya, xb, yb, x, y); - } - break; - default: - if (v < 32) { - error('unknown operator: ' + v); - } - if (v < 247) { - stack.push(v - 139); - } else if (v < 251) { - stack.push((v - 247) * 256 + code[i++] + 108); - } else if (v < 255) { - stack.push(-(v - 251) * 256 - code[i++] - 108); - } else { - stack.push(((code[i] << 24) | (code[i + 1] << 16) | - (code[i + 2] << 8) | code[i + 3]) / 65536); - i += 4; - } - break; - } - if (stackClean) { - stack.length = 0; - } - } - } - parse(code); - } - - var noop = ''; - - function CompiledFont(fontMatrix) { - this.compiledGlyphs = {}; - this.fontMatrix = fontMatrix; - } - CompiledFont.prototype = { - getPathJs: function (unicode) { - var gid = lookupCmap(this.cmap, unicode); - var fn = this.compiledGlyphs[gid]; - if (!fn) { - this.compiledGlyphs[gid] = fn = this.compileGlyph(this.glyphs[gid]); - } - return fn; - }, - - compileGlyph: function (code) { - if (!code || code.length === 0 || code[0] === 14) { - return noop; - } - - var cmds = []; - cmds.push({cmd: 'save'}); - cmds.push({cmd: 'transform', args: this.fontMatrix.slice()}); - cmds.push({cmd: 'scale', args: ['size', '-size']}); - - this.compileGlyphImpl(code, cmds); - - cmds.push({cmd: 'restore'}); - - return cmds; - }, - - compileGlyphImpl: function () { - error('Children classes should implement this.'); - }, - - hasBuiltPath: function (unicode) { - var gid = lookupCmap(this.cmap, unicode); - return gid in this.compiledGlyphs; - } - }; - - function TrueTypeCompiled(glyphs, cmap, fontMatrix) { - fontMatrix = fontMatrix || [0.000488, 0, 0, 0.000488, 0, 0]; - CompiledFont.call(this, fontMatrix); - - this.glyphs = glyphs; - this.cmap = cmap; - - this.compiledGlyphs = []; - } - - Util.inherit(TrueTypeCompiled, CompiledFont, { - compileGlyphImpl: function (code, cmds) { - compileGlyf(code, cmds, this); - } - }); - - function Type2Compiled(cffInfo, cmap, fontMatrix, glyphNameMap) { - fontMatrix = fontMatrix || [0.001, 0, 0, 0.001, 0, 0]; - CompiledFont.call(this, fontMatrix); - this.glyphs = cffInfo.glyphs; - this.gsubrs = cffInfo.gsubrs || []; - this.subrs = cffInfo.subrs || []; - this.cmap = cmap; - this.glyphNameMap = glyphNameMap || GlyphsUnicode; - - this.compiledGlyphs = []; - this.gsubrsBias = (this.gsubrs.length < 1240 ? - 107 : (this.gsubrs.length < 33900 ? 1131 : 32768)); - this.subrsBias = (this.subrs.length < 1240 ? - 107 : (this.subrs.length < 33900 ? 1131 : 32768)); - } - - Util.inherit(Type2Compiled, CompiledFont, { - compileGlyphImpl: function (code, cmds) { - compileCharString(code, cmds, this); - } - }); +var error = sharedUtil.error; +var info = sharedUtil.info; +var isArray = sharedUtil.isArray; +var isBool = sharedUtil.isBool; +var isDict = corePrimitives.isDict; +var isStream = corePrimitives.isStream; +var PostScriptLexer = corePsParser.PostScriptLexer; +var PostScriptParser = corePsParser.PostScriptParser; +var PDFFunction = (function PDFFunctionClosure() { + var CONSTRUCT_SAMPLED = 0; + var CONSTRUCT_INTERPOLATED = 2; + var CONSTRUCT_STICHED = 3; + var CONSTRUCT_POSTSCRIPT = 4; return { - create: function FontRendererFactory_create(font) { - var data = new Uint8Array(font.data); - var cmap, glyf, loca, cff, indexToLocFormat, unitsPerEm; - var numTables = getUshort(data, 4); - for (var i = 0, p = 12; i < numTables; i++, p += 16) { - var tag = bytesToString(data.subarray(p, p + 4)); - var offset = getLong(data, p + 8); - var length = getLong(data, p + 12); - switch (tag) { - case 'cmap': - cmap = parseCmap(data, offset, offset + length); - break; - case 'glyf': - glyf = data.subarray(offset, offset + length); - break; - case 'loca': - loca = data.subarray(offset, offset + length); - break; - case 'head': - unitsPerEm = getUshort(data, offset + 18); - indexToLocFormat = getUshort(data, offset + 50); - break; - case 'CFF ': - cff = parseCff(data, offset, offset + length); - break; + getSampleArray: function PDFFunction_getSampleArray(size, outputSize, bps, + str) { + var i, ii; + var length = 1; + for (i = 0, ii = size.length; i < ii; i++) { + length *= size[i]; + } + length *= outputSize; + + var array = new Array(length); + var codeSize = 0; + var codeBuf = 0; + // 32 is a valid bps so shifting won't work + var sampleMul = 1.0 / (Math.pow(2.0, bps) - 1); + + var strBytes = str.getBytes((length * bps + 7) / 8); + var strIdx = 0; + for (i = 0; i < length; i++) { + while (codeSize < bps) { + codeBuf <<= 8; + codeBuf |= strBytes[strIdx++]; + codeSize += 8; } + codeSize -= bps; + array[i] = (codeBuf >> codeSize) * sampleMul; + codeBuf &= (1 << codeSize) - 1; + } + return array; + }, + + getIR: function PDFFunction_getIR(xref, fn) { + var dict = fn.dict; + if (!dict) { + dict = fn; } - if (glyf) { - var fontMatrix = (!unitsPerEm ? font.fontMatrix : - [1 / unitsPerEm, 0, 0, 1 / unitsPerEm, 0, 0]); - return new TrueTypeCompiled( - parseGlyfTable(glyf, loca, indexToLocFormat), cmap, fontMatrix); - } else { - return new Type2Compiled(cff, cmap, font.fontMatrix, font.glyphNameMap); + var types = [this.constructSampled, + null, + this.constructInterpolated, + this.constructStiched, + this.constructPostScript]; + + var typeNum = dict.get('FunctionType'); + var typeFn = types[typeNum]; + if (!typeFn) { + error('Unknown type of function'); } + + return typeFn.call(this, fn, dict, xref); + }, + + fromIR: function PDFFunction_fromIR(IR) { + var type = IR[0]; + switch (type) { + case CONSTRUCT_SAMPLED: + return this.constructSampledFromIR(IR); + case CONSTRUCT_INTERPOLATED: + return this.constructInterpolatedFromIR(IR); + case CONSTRUCT_STICHED: + return this.constructStichedFromIR(IR); + //case CONSTRUCT_POSTSCRIPT: + default: + return this.constructPostScriptFromIR(IR); + } + }, + + parse: function PDFFunction_parse(xref, fn) { + var IR = this.getIR(xref, fn); + return this.fromIR(IR); + }, + + parseArray: function PDFFunction_parseArray(xref, fnObj) { + if (!isArray(fnObj)) { + // not an array -- parsing as regular function + return this.parse(xref, fnObj); + } + + var fnArray = []; + for (var j = 0, jj = fnObj.length; j < jj; j++) { + var obj = xref.fetchIfRef(fnObj[j]); + fnArray.push(PDFFunction.parse(xref, obj)); + } + return function (src, srcOffset, dest, destOffset) { + for (var i = 0, ii = fnArray.length; i < ii; i++) { + fnArray[i](src, srcOffset, dest, destOffset + i); + } + }; + }, + + constructSampled: function PDFFunction_constructSampled(str, dict) { + function toMultiArray(arr) { + var inputLength = arr.length; + var out = []; + var index = 0; + for (var i = 0; i < inputLength; i += 2) { + out[index] = [arr[i], arr[i + 1]]; + ++index; + } + return out; + } + var domain = dict.get('Domain'); + var range = dict.get('Range'); + + if (!domain || !range) { + error('No domain or range'); + } + + var inputSize = domain.length / 2; + var outputSize = range.length / 2; + + domain = toMultiArray(domain); + range = toMultiArray(range); + + var size = dict.get('Size'); + var bps = dict.get('BitsPerSample'); + var order = dict.get('Order') || 1; + if (order !== 1) { + // No description how cubic spline interpolation works in PDF32000:2008 + // As in poppler, ignoring order, linear interpolation may work as good + info('No support for cubic spline interpolation: ' + order); + } + + var encode = dict.get('Encode'); + if (!encode) { + encode = []; + for (var i = 0; i < inputSize; ++i) { + encode.push(0); + encode.push(size[i] - 1); + } + } + encode = toMultiArray(encode); + + var decode = dict.get('Decode'); + if (!decode) { + decode = range; + } else { + decode = toMultiArray(decode); + } + + var samples = this.getSampleArray(size, outputSize, bps, str); + + return [ + CONSTRUCT_SAMPLED, inputSize, domain, encode, decode, samples, size, + outputSize, Math.pow(2, bps) - 1, range + ]; + }, + + constructSampledFromIR: function PDFFunction_constructSampledFromIR(IR) { + // See chapter 3, page 109 of the PDF reference + function interpolate(x, xmin, xmax, ymin, ymax) { + return ymin + ((x - xmin) * ((ymax - ymin) / (xmax - xmin))); + } + + return function constructSampledFromIRResult(src, srcOffset, + dest, destOffset) { + // See chapter 3, page 110 of the PDF reference. + var m = IR[1]; + var domain = IR[2]; + var encode = IR[3]; + var decode = IR[4]; + var samples = IR[5]; + var size = IR[6]; + var n = IR[7]; + //var mask = IR[8]; + var range = IR[9]; + + // Building the cube vertices: its part and sample index + // http://rjwagner49.com/Mathematics/Interpolation.pdf + var cubeVertices = 1 << m; + var cubeN = new Float64Array(cubeVertices); + var cubeVertex = new Uint32Array(cubeVertices); + var i, j; + for (j = 0; j < cubeVertices; j++) { + cubeN[j] = 1; + } + + var k = n, pos = 1; + // Map x_i to y_j for 0 <= i < m using the sampled function. + for (i = 0; i < m; ++i) { + // x_i' = min(max(x_i, Domain_2i), Domain_2i+1) + var domain_2i = domain[i][0]; + var domain_2i_1 = domain[i][1]; + var xi = Math.min(Math.max(src[srcOffset +i], domain_2i), + domain_2i_1); + + // e_i = Interpolate(x_i', Domain_2i, Domain_2i+1, + // Encode_2i, Encode_2i+1) + var e = interpolate(xi, domain_2i, domain_2i_1, + encode[i][0], encode[i][1]); + + // e_i' = min(max(e_i, 0), Size_i - 1) + var size_i = size[i]; + e = Math.min(Math.max(e, 0), size_i - 1); + + // Adjusting the cube: N and vertex sample index + var e0 = e < size_i - 1 ? Math.floor(e) : e - 1; // e1 = e0 + 1; + var n0 = e0 + 1 - e; // (e1 - e) / (e1 - e0); + var n1 = e - e0; // (e - e0) / (e1 - e0); + var offset0 = e0 * k; + var offset1 = offset0 + k; // e1 * k + for (j = 0; j < cubeVertices; j++) { + if (j & pos) { + cubeN[j] *= n1; + cubeVertex[j] += offset1; + } else { + cubeN[j] *= n0; + cubeVertex[j] += offset0; + } + } + + k *= size_i; + pos <<= 1; + } + + for (j = 0; j < n; ++j) { + // Sum all cube vertices' samples portions + var rj = 0; + for (i = 0; i < cubeVertices; i++) { + rj += samples[cubeVertex[i] + j] * cubeN[i]; + } + + // r_j' = Interpolate(r_j, 0, 2^BitsPerSample - 1, + // Decode_2j, Decode_2j+1) + rj = interpolate(rj, 0, 1, decode[j][0], decode[j][1]); + + // y_j = min(max(r_j, range_2j), range_2j+1) + dest[destOffset + j] = Math.min(Math.max(rj, range[j][0]), + range[j][1]); + } + }; + }, + + constructInterpolated: function PDFFunction_constructInterpolated(str, + dict) { + var c0 = dict.get('C0') || [0]; + var c1 = dict.get('C1') || [1]; + var n = dict.get('N'); + + if (!isArray(c0) || !isArray(c1)) { + error('Illegal dictionary for interpolated function'); + } + + var length = c0.length; + var diff = []; + for (var i = 0; i < length; ++i) { + diff.push(c1[i] - c0[i]); + } + + return [CONSTRUCT_INTERPOLATED, c0, diff, n]; + }, + + constructInterpolatedFromIR: + function PDFFunction_constructInterpolatedFromIR(IR) { + var c0 = IR[1]; + var diff = IR[2]; + var n = IR[3]; + + var length = diff.length; + + return function constructInterpolatedFromIRResult(src, srcOffset, + dest, destOffset) { + var x = n === 1 ? src[srcOffset] : Math.pow(src[srcOffset], n); + + for (var j = 0; j < length; ++j) { + dest[destOffset + j] = c0[j] + (x * diff[j]); + } + }; + }, + + constructStiched: function PDFFunction_constructStiched(fn, dict, xref) { + var domain = dict.get('Domain'); + + if (!domain) { + error('No domain'); + } + + var inputSize = domain.length / 2; + if (inputSize !== 1) { + error('Bad domain for stiched function'); + } + + var fnRefs = dict.get('Functions'); + var fns = []; + for (var i = 0, ii = fnRefs.length; i < ii; ++i) { + fns.push(PDFFunction.getIR(xref, xref.fetchIfRef(fnRefs[i]))); + } + + var bounds = dict.get('Bounds'); + var encode = dict.get('Encode'); + + return [CONSTRUCT_STICHED, domain, bounds, encode, fns]; + }, + + constructStichedFromIR: function PDFFunction_constructStichedFromIR(IR) { + var domain = IR[1]; + var bounds = IR[2]; + var encode = IR[3]; + var fnsIR = IR[4]; + var fns = []; + var tmpBuf = new Float32Array(1); + + for (var i = 0, ii = fnsIR.length; i < ii; i++) { + fns.push(PDFFunction.fromIR(fnsIR[i])); + } + + return function constructStichedFromIRResult(src, srcOffset, + dest, destOffset) { + var clip = function constructStichedFromIRClip(v, min, max) { + if (v > max) { + v = max; + } else if (v < min) { + v = min; + } + return v; + }; + + // clip to domain + var v = clip(src[srcOffset], domain[0], domain[1]); + // calulate which bound the value is in + for (var i = 0, ii = bounds.length; i < ii; ++i) { + if (v < bounds[i]) { + break; + } + } + + // encode value into domain of function + var dmin = domain[0]; + if (i > 0) { + dmin = bounds[i - 1]; + } + var dmax = domain[1]; + if (i < bounds.length) { + dmax = bounds[i]; + } + + var rmin = encode[2 * i]; + var rmax = encode[2 * i + 1]; + + // Prevent the value from becoming NaN as a result + // of division by zero (fixes issue6113.pdf). + tmpBuf[0] = dmin === dmax ? rmin : + rmin + (v - dmin) * (rmax - rmin) / (dmax - dmin); + + // call the appropriate function + fns[i](tmpBuf, 0, dest, destOffset); + }; + }, + + constructPostScript: function PDFFunction_constructPostScript(fn, dict, + xref) { + var domain = dict.get('Domain'); + var range = dict.get('Range'); + + if (!domain) { + error('No domain.'); + } + + if (!range) { + error('No range.'); + } + + var lexer = new PostScriptLexer(fn); + var parser = new PostScriptParser(lexer); + var code = parser.parse(); + + return [CONSTRUCT_POSTSCRIPT, domain, range, code]; + }, + + constructPostScriptFromIR: function PDFFunction_constructPostScriptFromIR( + IR) { + var domain = IR[1]; + var range = IR[2]; + var code = IR[3]; + + var compiled = (new PostScriptCompiler()).compile(code, domain, range); + if (compiled) { + // Compiled function consists of simple expressions such as addition, + // subtraction, Math.max, and also contains 'var' and 'return' + // statements. See the generation in the PostScriptCompiler below. + /*jshint -W054 */ + return new Function('src', 'srcOffset', 'dest', 'destOffset', compiled); + } + + info('Unable to compile PS function'); + + var numOutputs = range.length >> 1; + var numInputs = domain.length >> 1; + var evaluator = new PostScriptEvaluator(code); + // Cache the values for a big speed up, the cache size is limited though + // since the number of possible values can be huge from a PS function. + var cache = {}; + // The MAX_CACHE_SIZE is set to ~4x the maximum number of distinct values + // seen in our tests. + var MAX_CACHE_SIZE = 2048 * 4; + var cache_available = MAX_CACHE_SIZE; + var tmpBuf = new Float32Array(numInputs); + + return function constructPostScriptFromIRResult(src, srcOffset, + dest, destOffset) { + var i, value; + var key = ''; + var input = tmpBuf; + for (i = 0; i < numInputs; i++) { + value = src[srcOffset + i]; + input[i] = value; + key += value + '_'; + } + + var cachedValue = cache[key]; + if (cachedValue !== undefined) { + dest.set(cachedValue, destOffset); + return; + } + + var output = new Float32Array(numOutputs); + var stack = evaluator.execute(input); + var stackIndex = stack.length - numOutputs; + for (i = 0; i < numOutputs; i++) { + value = stack[stackIndex + i]; + var bound = range[i * 2]; + if (value < bound) { + value = bound; + } else { + bound = range[i * 2 +1]; + if (value > bound) { + value = bound; + } + } + output[i] = value; + } + if (cache_available > 0) { + cache_available--; + cache[key] = output; + } + dest.set(output, destOffset); + }; } }; })(); +function isPDFFunction(v) { + var fnDict; + if (typeof v !== 'object') { + return false; + } else if (isDict(v)) { + fnDict = v; + } else if (isStream(v)) { + fnDict = v.dict; + } else { + return false; + } + return fnDict.has('FunctionType'); +} -var GlyphsUnicode = { - A: 0x0041, - AE: 0x00C6, - AEacute: 0x01FC, - AEmacron: 0x01E2, - AEsmall: 0xF7E6, - Aacute: 0x00C1, - Aacutesmall: 0xF7E1, - Abreve: 0x0102, - Abreveacute: 0x1EAE, - Abrevecyrillic: 0x04D0, - Abrevedotbelow: 0x1EB6, - Abrevegrave: 0x1EB0, - Abrevehookabove: 0x1EB2, - Abrevetilde: 0x1EB4, - Acaron: 0x01CD, - Acircle: 0x24B6, - Acircumflex: 0x00C2, - Acircumflexacute: 0x1EA4, - Acircumflexdotbelow: 0x1EAC, - Acircumflexgrave: 0x1EA6, - Acircumflexhookabove: 0x1EA8, - Acircumflexsmall: 0xF7E2, - Acircumflextilde: 0x1EAA, - Acute: 0xF6C9, - Acutesmall: 0xF7B4, - Acyrillic: 0x0410, - Adblgrave: 0x0200, - Adieresis: 0x00C4, - Adieresiscyrillic: 0x04D2, - Adieresismacron: 0x01DE, - Adieresissmall: 0xF7E4, - Adotbelow: 0x1EA0, - Adotmacron: 0x01E0, - Agrave: 0x00C0, - Agravesmall: 0xF7E0, - Ahookabove: 0x1EA2, - Aiecyrillic: 0x04D4, - Ainvertedbreve: 0x0202, - Alpha: 0x0391, - Alphatonos: 0x0386, - Amacron: 0x0100, - Amonospace: 0xFF21, - Aogonek: 0x0104, - Aring: 0x00C5, - Aringacute: 0x01FA, - Aringbelow: 0x1E00, - Aringsmall: 0xF7E5, - Asmall: 0xF761, - Atilde: 0x00C3, - Atildesmall: 0xF7E3, - Aybarmenian: 0x0531, - B: 0x0042, - Bcircle: 0x24B7, - Bdotaccent: 0x1E02, - Bdotbelow: 0x1E04, - Becyrillic: 0x0411, - Benarmenian: 0x0532, - Beta: 0x0392, - Bhook: 0x0181, - Blinebelow: 0x1E06, - Bmonospace: 0xFF22, - Brevesmall: 0xF6F4, - Bsmall: 0xF762, - Btopbar: 0x0182, - C: 0x0043, - Caarmenian: 0x053E, - Cacute: 0x0106, - Caron: 0xF6CA, - Caronsmall: 0xF6F5, - Ccaron: 0x010C, - Ccedilla: 0x00C7, - Ccedillaacute: 0x1E08, - Ccedillasmall: 0xF7E7, - Ccircle: 0x24B8, - Ccircumflex: 0x0108, - Cdot: 0x010A, - Cdotaccent: 0x010A, - Cedillasmall: 0xF7B8, - Chaarmenian: 0x0549, - Cheabkhasiancyrillic: 0x04BC, - Checyrillic: 0x0427, - Chedescenderabkhasiancyrillic: 0x04BE, - Chedescendercyrillic: 0x04B6, - Chedieresiscyrillic: 0x04F4, - Cheharmenian: 0x0543, - Chekhakassiancyrillic: 0x04CB, - Cheverticalstrokecyrillic: 0x04B8, - Chi: 0x03A7, - Chook: 0x0187, - Circumflexsmall: 0xF6F6, - Cmonospace: 0xFF23, - Coarmenian: 0x0551, - Csmall: 0xF763, - D: 0x0044, - DZ: 0x01F1, - DZcaron: 0x01C4, - Daarmenian: 0x0534, - Dafrican: 0x0189, - Dcaron: 0x010E, - Dcedilla: 0x1E10, - Dcircle: 0x24B9, - Dcircumflexbelow: 0x1E12, - Dcroat: 0x0110, - Ddotaccent: 0x1E0A, - Ddotbelow: 0x1E0C, - Decyrillic: 0x0414, - Deicoptic: 0x03EE, - Delta: 0x2206, - Deltagreek: 0x0394, - Dhook: 0x018A, - Dieresis: 0xF6CB, - DieresisAcute: 0xF6CC, - DieresisGrave: 0xF6CD, - Dieresissmall: 0xF7A8, - Digammagreek: 0x03DC, - Djecyrillic: 0x0402, - Dlinebelow: 0x1E0E, - Dmonospace: 0xFF24, - Dotaccentsmall: 0xF6F7, - Dslash: 0x0110, - Dsmall: 0xF764, - Dtopbar: 0x018B, - Dz: 0x01F2, - Dzcaron: 0x01C5, - Dzeabkhasiancyrillic: 0x04E0, - Dzecyrillic: 0x0405, - Dzhecyrillic: 0x040F, - E: 0x0045, - Eacute: 0x00C9, - Eacutesmall: 0xF7E9, - Ebreve: 0x0114, - Ecaron: 0x011A, - Ecedillabreve: 0x1E1C, - Echarmenian: 0x0535, - Ecircle: 0x24BA, - Ecircumflex: 0x00CA, - Ecircumflexacute: 0x1EBE, - Ecircumflexbelow: 0x1E18, - Ecircumflexdotbelow: 0x1EC6, - Ecircumflexgrave: 0x1EC0, - Ecircumflexhookabove: 0x1EC2, - Ecircumflexsmall: 0xF7EA, - Ecircumflextilde: 0x1EC4, - Ecyrillic: 0x0404, - Edblgrave: 0x0204, - Edieresis: 0x00CB, - Edieresissmall: 0xF7EB, - Edot: 0x0116, - Edotaccent: 0x0116, - Edotbelow: 0x1EB8, - Efcyrillic: 0x0424, - Egrave: 0x00C8, - Egravesmall: 0xF7E8, - Eharmenian: 0x0537, - Ehookabove: 0x1EBA, - Eightroman: 0x2167, - Einvertedbreve: 0x0206, - Eiotifiedcyrillic: 0x0464, - Elcyrillic: 0x041B, - Elevenroman: 0x216A, - Emacron: 0x0112, - Emacronacute: 0x1E16, - Emacrongrave: 0x1E14, - Emcyrillic: 0x041C, - Emonospace: 0xFF25, - Encyrillic: 0x041D, - Endescendercyrillic: 0x04A2, - Eng: 0x014A, - Enghecyrillic: 0x04A4, - Enhookcyrillic: 0x04C7, - Eogonek: 0x0118, - Eopen: 0x0190, - Epsilon: 0x0395, - Epsilontonos: 0x0388, - Ercyrillic: 0x0420, - Ereversed: 0x018E, - Ereversedcyrillic: 0x042D, - Escyrillic: 0x0421, - Esdescendercyrillic: 0x04AA, - Esh: 0x01A9, - Esmall: 0xF765, - Eta: 0x0397, - Etarmenian: 0x0538, - Etatonos: 0x0389, - Eth: 0x00D0, - Ethsmall: 0xF7F0, - Etilde: 0x1EBC, - Etildebelow: 0x1E1A, - Euro: 0x20AC, - Ezh: 0x01B7, - Ezhcaron: 0x01EE, - Ezhreversed: 0x01B8, - F: 0x0046, - Fcircle: 0x24BB, - Fdotaccent: 0x1E1E, - Feharmenian: 0x0556, - Feicoptic: 0x03E4, - Fhook: 0x0191, - Fitacyrillic: 0x0472, - Fiveroman: 0x2164, - Fmonospace: 0xFF26, - Fourroman: 0x2163, - Fsmall: 0xF766, - G: 0x0047, - GBsquare: 0x3387, - Gacute: 0x01F4, - Gamma: 0x0393, - Gammaafrican: 0x0194, - Gangiacoptic: 0x03EA, - Gbreve: 0x011E, - Gcaron: 0x01E6, - Gcedilla: 0x0122, - Gcircle: 0x24BC, - Gcircumflex: 0x011C, - Gcommaaccent: 0x0122, - Gdot: 0x0120, - Gdotaccent: 0x0120, - Gecyrillic: 0x0413, - Ghadarmenian: 0x0542, - Ghemiddlehookcyrillic: 0x0494, - Ghestrokecyrillic: 0x0492, - Gheupturncyrillic: 0x0490, - Ghook: 0x0193, - Gimarmenian: 0x0533, - Gjecyrillic: 0x0403, - Gmacron: 0x1E20, - Gmonospace: 0xFF27, - Grave: 0xF6CE, - Gravesmall: 0xF760, - Gsmall: 0xF767, - Gsmallhook: 0x029B, - Gstroke: 0x01E4, - H: 0x0048, - H18533: 0x25CF, - H18543: 0x25AA, - H18551: 0x25AB, - H22073: 0x25A1, - HPsquare: 0x33CB, - Haabkhasiancyrillic: 0x04A8, - Hadescendercyrillic: 0x04B2, - Hardsigncyrillic: 0x042A, - Hbar: 0x0126, - Hbrevebelow: 0x1E2A, - Hcedilla: 0x1E28, - Hcircle: 0x24BD, - Hcircumflex: 0x0124, - Hdieresis: 0x1E26, - Hdotaccent: 0x1E22, - Hdotbelow: 0x1E24, - Hmonospace: 0xFF28, - Hoarmenian: 0x0540, - Horicoptic: 0x03E8, - Hsmall: 0xF768, - Hungarumlaut: 0xF6CF, - Hungarumlautsmall: 0xF6F8, - Hzsquare: 0x3390, - I: 0x0049, - IAcyrillic: 0x042F, - IJ: 0x0132, - IUcyrillic: 0x042E, - Iacute: 0x00CD, - Iacutesmall: 0xF7ED, - Ibreve: 0x012C, - Icaron: 0x01CF, - Icircle: 0x24BE, - Icircumflex: 0x00CE, - Icircumflexsmall: 0xF7EE, - Icyrillic: 0x0406, - Idblgrave: 0x0208, - Idieresis: 0x00CF, - Idieresisacute: 0x1E2E, - Idieresiscyrillic: 0x04E4, - Idieresissmall: 0xF7EF, - Idot: 0x0130, - Idotaccent: 0x0130, - Idotbelow: 0x1ECA, - Iebrevecyrillic: 0x04D6, - Iecyrillic: 0x0415, - Ifraktur: 0x2111, - Igrave: 0x00CC, - Igravesmall: 0xF7EC, - Ihookabove: 0x1EC8, - Iicyrillic: 0x0418, - Iinvertedbreve: 0x020A, - Iishortcyrillic: 0x0419, - Imacron: 0x012A, - Imacroncyrillic: 0x04E2, - Imonospace: 0xFF29, - Iniarmenian: 0x053B, - Iocyrillic: 0x0401, - Iogonek: 0x012E, - Iota: 0x0399, - Iotaafrican: 0x0196, - Iotadieresis: 0x03AA, - Iotatonos: 0x038A, - Ismall: 0xF769, - Istroke: 0x0197, - Itilde: 0x0128, - Itildebelow: 0x1E2C, - Izhitsacyrillic: 0x0474, - Izhitsadblgravecyrillic: 0x0476, - J: 0x004A, - Jaarmenian: 0x0541, - Jcircle: 0x24BF, - Jcircumflex: 0x0134, - Jecyrillic: 0x0408, - Jheharmenian: 0x054B, - Jmonospace: 0xFF2A, - Jsmall: 0xF76A, - K: 0x004B, - KBsquare: 0x3385, - KKsquare: 0x33CD, - Kabashkircyrillic: 0x04A0, - Kacute: 0x1E30, - Kacyrillic: 0x041A, - Kadescendercyrillic: 0x049A, - Kahookcyrillic: 0x04C3, - Kappa: 0x039A, - Kastrokecyrillic: 0x049E, - Kaverticalstrokecyrillic: 0x049C, - Kcaron: 0x01E8, - Kcedilla: 0x0136, - Kcircle: 0x24C0, - Kcommaaccent: 0x0136, - Kdotbelow: 0x1E32, - Keharmenian: 0x0554, - Kenarmenian: 0x053F, - Khacyrillic: 0x0425, - Kheicoptic: 0x03E6, - Khook: 0x0198, - Kjecyrillic: 0x040C, - Klinebelow: 0x1E34, - Kmonospace: 0xFF2B, - Koppacyrillic: 0x0480, - Koppagreek: 0x03DE, - Ksicyrillic: 0x046E, - Ksmall: 0xF76B, - L: 0x004C, - LJ: 0x01C7, - LL: 0xF6BF, - Lacute: 0x0139, - Lambda: 0x039B, - Lcaron: 0x013D, - Lcedilla: 0x013B, - Lcircle: 0x24C1, - Lcircumflexbelow: 0x1E3C, - Lcommaaccent: 0x013B, - Ldot: 0x013F, - Ldotaccent: 0x013F, - Ldotbelow: 0x1E36, - Ldotbelowmacron: 0x1E38, - Liwnarmenian: 0x053C, - Lj: 0x01C8, - Ljecyrillic: 0x0409, - Llinebelow: 0x1E3A, - Lmonospace: 0xFF2C, - Lslash: 0x0141, - Lslashsmall: 0xF6F9, - Lsmall: 0xF76C, - M: 0x004D, - MBsquare: 0x3386, - Macron: 0xF6D0, - Macronsmall: 0xF7AF, - Macute: 0x1E3E, - Mcircle: 0x24C2, - Mdotaccent: 0x1E40, - Mdotbelow: 0x1E42, - Menarmenian: 0x0544, - Mmonospace: 0xFF2D, - Msmall: 0xF76D, - Mturned: 0x019C, - Mu: 0x039C, - N: 0x004E, - NJ: 0x01CA, - Nacute: 0x0143, - Ncaron: 0x0147, - Ncedilla: 0x0145, - Ncircle: 0x24C3, - Ncircumflexbelow: 0x1E4A, - Ncommaaccent: 0x0145, - Ndotaccent: 0x1E44, - Ndotbelow: 0x1E46, - Nhookleft: 0x019D, - Nineroman: 0x2168, - Nj: 0x01CB, - Njecyrillic: 0x040A, - Nlinebelow: 0x1E48, - Nmonospace: 0xFF2E, - Nowarmenian: 0x0546, - Nsmall: 0xF76E, - Ntilde: 0x00D1, - Ntildesmall: 0xF7F1, - Nu: 0x039D, - O: 0x004F, - OE: 0x0152, - OEsmall: 0xF6FA, - Oacute: 0x00D3, - Oacutesmall: 0xF7F3, - Obarredcyrillic: 0x04E8, - Obarreddieresiscyrillic: 0x04EA, - Obreve: 0x014E, - Ocaron: 0x01D1, - Ocenteredtilde: 0x019F, - Ocircle: 0x24C4, - Ocircumflex: 0x00D4, - Ocircumflexacute: 0x1ED0, - Ocircumflexdotbelow: 0x1ED8, - Ocircumflexgrave: 0x1ED2, - Ocircumflexhookabove: 0x1ED4, - Ocircumflexsmall: 0xF7F4, - Ocircumflextilde: 0x1ED6, - Ocyrillic: 0x041E, - Odblacute: 0x0150, - Odblgrave: 0x020C, - Odieresis: 0x00D6, - Odieresiscyrillic: 0x04E6, - Odieresissmall: 0xF7F6, - Odotbelow: 0x1ECC, - Ogoneksmall: 0xF6FB, - Ograve: 0x00D2, - Ogravesmall: 0xF7F2, - Oharmenian: 0x0555, - Ohm: 0x2126, - Ohookabove: 0x1ECE, - Ohorn: 0x01A0, - Ohornacute: 0x1EDA, - Ohorndotbelow: 0x1EE2, - Ohorngrave: 0x1EDC, - Ohornhookabove: 0x1EDE, - Ohorntilde: 0x1EE0, - Ohungarumlaut: 0x0150, - Oi: 0x01A2, - Oinvertedbreve: 0x020E, - Omacron: 0x014C, - Omacronacute: 0x1E52, - Omacrongrave: 0x1E50, - Omega: 0x2126, - Omegacyrillic: 0x0460, - Omegagreek: 0x03A9, - Omegaroundcyrillic: 0x047A, - Omegatitlocyrillic: 0x047C, - Omegatonos: 0x038F, - Omicron: 0x039F, - Omicrontonos: 0x038C, - Omonospace: 0xFF2F, - Oneroman: 0x2160, - Oogonek: 0x01EA, - Oogonekmacron: 0x01EC, - Oopen: 0x0186, - Oslash: 0x00D8, - Oslashacute: 0x01FE, - Oslashsmall: 0xF7F8, - Osmall: 0xF76F, - Ostrokeacute: 0x01FE, - Otcyrillic: 0x047E, - Otilde: 0x00D5, - Otildeacute: 0x1E4C, - Otildedieresis: 0x1E4E, - Otildesmall: 0xF7F5, - P: 0x0050, - Pacute: 0x1E54, - Pcircle: 0x24C5, - Pdotaccent: 0x1E56, - Pecyrillic: 0x041F, - Peharmenian: 0x054A, - Pemiddlehookcyrillic: 0x04A6, - Phi: 0x03A6, - Phook: 0x01A4, - Pi: 0x03A0, - Piwrarmenian: 0x0553, - Pmonospace: 0xFF30, - Psi: 0x03A8, - Psicyrillic: 0x0470, - Psmall: 0xF770, - Q: 0x0051, - Qcircle: 0x24C6, - Qmonospace: 0xFF31, - Qsmall: 0xF771, - R: 0x0052, - Raarmenian: 0x054C, - Racute: 0x0154, - Rcaron: 0x0158, - Rcedilla: 0x0156, - Rcircle: 0x24C7, - Rcommaaccent: 0x0156, - Rdblgrave: 0x0210, - Rdotaccent: 0x1E58, - Rdotbelow: 0x1E5A, - Rdotbelowmacron: 0x1E5C, - Reharmenian: 0x0550, - Rfraktur: 0x211C, - Rho: 0x03A1, - Ringsmall: 0xF6FC, - Rinvertedbreve: 0x0212, - Rlinebelow: 0x1E5E, - Rmonospace: 0xFF32, - Rsmall: 0xF772, - Rsmallinverted: 0x0281, - Rsmallinvertedsuperior: 0x02B6, - S: 0x0053, - SF010000: 0x250C, - SF020000: 0x2514, - SF030000: 0x2510, - SF040000: 0x2518, - SF050000: 0x253C, - SF060000: 0x252C, - SF070000: 0x2534, - SF080000: 0x251C, - SF090000: 0x2524, - SF100000: 0x2500, - SF110000: 0x2502, - SF190000: 0x2561, - SF200000: 0x2562, - SF210000: 0x2556, - SF220000: 0x2555, - SF230000: 0x2563, - SF240000: 0x2551, - SF250000: 0x2557, - SF260000: 0x255D, - SF270000: 0x255C, - SF280000: 0x255B, - SF360000: 0x255E, - SF370000: 0x255F, - SF380000: 0x255A, - SF390000: 0x2554, - SF400000: 0x2569, - SF410000: 0x2566, - SF420000: 0x2560, - SF430000: 0x2550, - SF440000: 0x256C, - SF450000: 0x2567, - SF460000: 0x2568, - SF470000: 0x2564, - SF480000: 0x2565, - SF490000: 0x2559, - SF500000: 0x2558, - SF510000: 0x2552, - SF520000: 0x2553, - SF530000: 0x256B, - SF540000: 0x256A, - Sacute: 0x015A, - Sacutedotaccent: 0x1E64, - Sampigreek: 0x03E0, - Scaron: 0x0160, - Scarondotaccent: 0x1E66, - Scaronsmall: 0xF6FD, - Scedilla: 0x015E, - Schwa: 0x018F, - Schwacyrillic: 0x04D8, - Schwadieresiscyrillic: 0x04DA, - Scircle: 0x24C8, - Scircumflex: 0x015C, - Scommaaccent: 0x0218, - Sdotaccent: 0x1E60, - Sdotbelow: 0x1E62, - Sdotbelowdotaccent: 0x1E68, - Seharmenian: 0x054D, - Sevenroman: 0x2166, - Shaarmenian: 0x0547, - Shacyrillic: 0x0428, - Shchacyrillic: 0x0429, - Sheicoptic: 0x03E2, - Shhacyrillic: 0x04BA, - Shimacoptic: 0x03EC, - Sigma: 0x03A3, - Sixroman: 0x2165, - Smonospace: 0xFF33, - Softsigncyrillic: 0x042C, - Ssmall: 0xF773, - Stigmagreek: 0x03DA, - T: 0x0054, - Tau: 0x03A4, - Tbar: 0x0166, - Tcaron: 0x0164, - Tcedilla: 0x0162, - Tcircle: 0x24C9, - Tcircumflexbelow: 0x1E70, - Tcommaaccent: 0x0162, - Tdotaccent: 0x1E6A, - Tdotbelow: 0x1E6C, - Tecyrillic: 0x0422, - Tedescendercyrillic: 0x04AC, - Tenroman: 0x2169, - Tetsecyrillic: 0x04B4, - Theta: 0x0398, - Thook: 0x01AC, - Thorn: 0x00DE, - Thornsmall: 0xF7FE, - Threeroman: 0x2162, - Tildesmall: 0xF6FE, - Tiwnarmenian: 0x054F, - Tlinebelow: 0x1E6E, - Tmonospace: 0xFF34, - Toarmenian: 0x0539, - Tonefive: 0x01BC, - Tonesix: 0x0184, - Tonetwo: 0x01A7, - Tretroflexhook: 0x01AE, - Tsecyrillic: 0x0426, - Tshecyrillic: 0x040B, - Tsmall: 0xF774, - Twelveroman: 0x216B, - Tworoman: 0x2161, - U: 0x0055, - Uacute: 0x00DA, - Uacutesmall: 0xF7FA, - Ubreve: 0x016C, - Ucaron: 0x01D3, - Ucircle: 0x24CA, - Ucircumflex: 0x00DB, - Ucircumflexbelow: 0x1E76, - Ucircumflexsmall: 0xF7FB, - Ucyrillic: 0x0423, - Udblacute: 0x0170, - Udblgrave: 0x0214, - Udieresis: 0x00DC, - Udieresisacute: 0x01D7, - Udieresisbelow: 0x1E72, - Udieresiscaron: 0x01D9, - Udieresiscyrillic: 0x04F0, - Udieresisgrave: 0x01DB, - Udieresismacron: 0x01D5, - Udieresissmall: 0xF7FC, - Udotbelow: 0x1EE4, - Ugrave: 0x00D9, - Ugravesmall: 0xF7F9, - Uhookabove: 0x1EE6, - Uhorn: 0x01AF, - Uhornacute: 0x1EE8, - Uhorndotbelow: 0x1EF0, - Uhorngrave: 0x1EEA, - Uhornhookabove: 0x1EEC, - Uhorntilde: 0x1EEE, - Uhungarumlaut: 0x0170, - Uhungarumlautcyrillic: 0x04F2, - Uinvertedbreve: 0x0216, - Ukcyrillic: 0x0478, - Umacron: 0x016A, - Umacroncyrillic: 0x04EE, - Umacrondieresis: 0x1E7A, - Umonospace: 0xFF35, - Uogonek: 0x0172, - Upsilon: 0x03A5, - Upsilon1: 0x03D2, - Upsilonacutehooksymbolgreek: 0x03D3, - Upsilonafrican: 0x01B1, - Upsilondieresis: 0x03AB, - Upsilondieresishooksymbolgreek: 0x03D4, - Upsilonhooksymbol: 0x03D2, - Upsilontonos: 0x038E, - Uring: 0x016E, - Ushortcyrillic: 0x040E, - Usmall: 0xF775, - Ustraightcyrillic: 0x04AE, - Ustraightstrokecyrillic: 0x04B0, - Utilde: 0x0168, - Utildeacute: 0x1E78, - Utildebelow: 0x1E74, - V: 0x0056, - Vcircle: 0x24CB, - Vdotbelow: 0x1E7E, - Vecyrillic: 0x0412, - Vewarmenian: 0x054E, - Vhook: 0x01B2, - Vmonospace: 0xFF36, - Voarmenian: 0x0548, - Vsmall: 0xF776, - Vtilde: 0x1E7C, - W: 0x0057, - Wacute: 0x1E82, - Wcircle: 0x24CC, - Wcircumflex: 0x0174, - Wdieresis: 0x1E84, - Wdotaccent: 0x1E86, - Wdotbelow: 0x1E88, - Wgrave: 0x1E80, - Wmonospace: 0xFF37, - Wsmall: 0xF777, - X: 0x0058, - Xcircle: 0x24CD, - Xdieresis: 0x1E8C, - Xdotaccent: 0x1E8A, - Xeharmenian: 0x053D, - Xi: 0x039E, - Xmonospace: 0xFF38, - Xsmall: 0xF778, - Y: 0x0059, - Yacute: 0x00DD, - Yacutesmall: 0xF7FD, - Yatcyrillic: 0x0462, - Ycircle: 0x24CE, - Ycircumflex: 0x0176, - Ydieresis: 0x0178, - Ydieresissmall: 0xF7FF, - Ydotaccent: 0x1E8E, - Ydotbelow: 0x1EF4, - Yericyrillic: 0x042B, - Yerudieresiscyrillic: 0x04F8, - Ygrave: 0x1EF2, - Yhook: 0x01B3, - Yhookabove: 0x1EF6, - Yiarmenian: 0x0545, - Yicyrillic: 0x0407, - Yiwnarmenian: 0x0552, - Ymonospace: 0xFF39, - Ysmall: 0xF779, - Ytilde: 0x1EF8, - Yusbigcyrillic: 0x046A, - Yusbigiotifiedcyrillic: 0x046C, - Yuslittlecyrillic: 0x0466, - Yuslittleiotifiedcyrillic: 0x0468, - Z: 0x005A, - Zaarmenian: 0x0536, - Zacute: 0x0179, - Zcaron: 0x017D, - Zcaronsmall: 0xF6FF, - Zcircle: 0x24CF, - Zcircumflex: 0x1E90, - Zdot: 0x017B, - Zdotaccent: 0x017B, - Zdotbelow: 0x1E92, - Zecyrillic: 0x0417, - Zedescendercyrillic: 0x0498, - Zedieresiscyrillic: 0x04DE, - Zeta: 0x0396, - Zhearmenian: 0x053A, - Zhebrevecyrillic: 0x04C1, - Zhecyrillic: 0x0416, - Zhedescendercyrillic: 0x0496, - Zhedieresiscyrillic: 0x04DC, - Zlinebelow: 0x1E94, - Zmonospace: 0xFF3A, - Zsmall: 0xF77A, - Zstroke: 0x01B5, - a: 0x0061, - aabengali: 0x0986, - aacute: 0x00E1, - aadeva: 0x0906, - aagujarati: 0x0A86, - aagurmukhi: 0x0A06, - aamatragurmukhi: 0x0A3E, - aarusquare: 0x3303, - aavowelsignbengali: 0x09BE, - aavowelsigndeva: 0x093E, - aavowelsigngujarati: 0x0ABE, - abbreviationmarkarmenian: 0x055F, - abbreviationsigndeva: 0x0970, - abengali: 0x0985, - abopomofo: 0x311A, - abreve: 0x0103, - abreveacute: 0x1EAF, - abrevecyrillic: 0x04D1, - abrevedotbelow: 0x1EB7, - abrevegrave: 0x1EB1, - abrevehookabove: 0x1EB3, - abrevetilde: 0x1EB5, - acaron: 0x01CE, - acircle: 0x24D0, - acircumflex: 0x00E2, - acircumflexacute: 0x1EA5, - acircumflexdotbelow: 0x1EAD, - acircumflexgrave: 0x1EA7, - acircumflexhookabove: 0x1EA9, - acircumflextilde: 0x1EAB, - acute: 0x00B4, - acutebelowcmb: 0x0317, - acutecmb: 0x0301, - acutecomb: 0x0301, - acutedeva: 0x0954, - acutelowmod: 0x02CF, - acutetonecmb: 0x0341, - acyrillic: 0x0430, - adblgrave: 0x0201, - addakgurmukhi: 0x0A71, - adeva: 0x0905, - adieresis: 0x00E4, - adieresiscyrillic: 0x04D3, - adieresismacron: 0x01DF, - adotbelow: 0x1EA1, - adotmacron: 0x01E1, - ae: 0x00E6, - aeacute: 0x01FD, - aekorean: 0x3150, - aemacron: 0x01E3, - afii00208: 0x2015, - afii08941: 0x20A4, - afii10017: 0x0410, - afii10018: 0x0411, - afii10019: 0x0412, - afii10020: 0x0413, - afii10021: 0x0414, - afii10022: 0x0415, - afii10023: 0x0401, - afii10024: 0x0416, - afii10025: 0x0417, - afii10026: 0x0418, - afii10027: 0x0419, - afii10028: 0x041A, - afii10029: 0x041B, - afii10030: 0x041C, - afii10031: 0x041D, - afii10032: 0x041E, - afii10033: 0x041F, - afii10034: 0x0420, - afii10035: 0x0421, - afii10036: 0x0422, - afii10037: 0x0423, - afii10038: 0x0424, - afii10039: 0x0425, - afii10040: 0x0426, - afii10041: 0x0427, - afii10042: 0x0428, - afii10043: 0x0429, - afii10044: 0x042A, - afii10045: 0x042B, - afii10046: 0x042C, - afii10047: 0x042D, - afii10048: 0x042E, - afii10049: 0x042F, - afii10050: 0x0490, - afii10051: 0x0402, - afii10052: 0x0403, - afii10053: 0x0404, - afii10054: 0x0405, - afii10055: 0x0406, - afii10056: 0x0407, - afii10057: 0x0408, - afii10058: 0x0409, - afii10059: 0x040A, - afii10060: 0x040B, - afii10061: 0x040C, - afii10062: 0x040E, - afii10063: 0xF6C4, - afii10064: 0xF6C5, - afii10065: 0x0430, - afii10066: 0x0431, - afii10067: 0x0432, - afii10068: 0x0433, - afii10069: 0x0434, - afii10070: 0x0435, - afii10071: 0x0451, - afii10072: 0x0436, - afii10073: 0x0437, - afii10074: 0x0438, - afii10075: 0x0439, - afii10076: 0x043A, - afii10077: 0x043B, - afii10078: 0x043C, - afii10079: 0x043D, - afii10080: 0x043E, - afii10081: 0x043F, - afii10082: 0x0440, - afii10083: 0x0441, - afii10084: 0x0442, - afii10085: 0x0443, - afii10086: 0x0444, - afii10087: 0x0445, - afii10088: 0x0446, - afii10089: 0x0447, - afii10090: 0x0448, - afii10091: 0x0449, - afii10092: 0x044A, - afii10093: 0x044B, - afii10094: 0x044C, - afii10095: 0x044D, - afii10096: 0x044E, - afii10097: 0x044F, - afii10098: 0x0491, - afii10099: 0x0452, - afii10100: 0x0453, - afii10101: 0x0454, - afii10102: 0x0455, - afii10103: 0x0456, - afii10104: 0x0457, - afii10105: 0x0458, - afii10106: 0x0459, - afii10107: 0x045A, - afii10108: 0x045B, - afii10109: 0x045C, - afii10110: 0x045E, - afii10145: 0x040F, - afii10146: 0x0462, - afii10147: 0x0472, - afii10148: 0x0474, - afii10192: 0xF6C6, - afii10193: 0x045F, - afii10194: 0x0463, - afii10195: 0x0473, - afii10196: 0x0475, - afii10831: 0xF6C7, - afii10832: 0xF6C8, - afii10846: 0x04D9, - afii299: 0x200E, - afii300: 0x200F, - afii301: 0x200D, - afii57381: 0x066A, - afii57388: 0x060C, - afii57392: 0x0660, - afii57393: 0x0661, - afii57394: 0x0662, - afii57395: 0x0663, - afii57396: 0x0664, - afii57397: 0x0665, - afii57398: 0x0666, - afii57399: 0x0667, - afii57400: 0x0668, - afii57401: 0x0669, - afii57403: 0x061B, - afii57407: 0x061F, - afii57409: 0x0621, - afii57410: 0x0622, - afii57411: 0x0623, - afii57412: 0x0624, - afii57413: 0x0625, - afii57414: 0x0626, - afii57415: 0x0627, - afii57416: 0x0628, - afii57417: 0x0629, - afii57418: 0x062A, - afii57419: 0x062B, - afii57420: 0x062C, - afii57421: 0x062D, - afii57422: 0x062E, - afii57423: 0x062F, - afii57424: 0x0630, - afii57425: 0x0631, - afii57426: 0x0632, - afii57427: 0x0633, - afii57428: 0x0634, - afii57429: 0x0635, - afii57430: 0x0636, - afii57431: 0x0637, - afii57432: 0x0638, - afii57433: 0x0639, - afii57434: 0x063A, - afii57440: 0x0640, - afii57441: 0x0641, - afii57442: 0x0642, - afii57443: 0x0643, - afii57444: 0x0644, - afii57445: 0x0645, - afii57446: 0x0646, - afii57448: 0x0648, - afii57449: 0x0649, - afii57450: 0x064A, - afii57451: 0x064B, - afii57452: 0x064C, - afii57453: 0x064D, - afii57454: 0x064E, - afii57455: 0x064F, - afii57456: 0x0650, - afii57457: 0x0651, - afii57458: 0x0652, - afii57470: 0x0647, - afii57505: 0x06A4, - afii57506: 0x067E, - afii57507: 0x0686, - afii57508: 0x0698, - afii57509: 0x06AF, - afii57511: 0x0679, - afii57512: 0x0688, - afii57513: 0x0691, - afii57514: 0x06BA, - afii57519: 0x06D2, - afii57534: 0x06D5, - afii57636: 0x20AA, - afii57645: 0x05BE, - afii57658: 0x05C3, - afii57664: 0x05D0, - afii57665: 0x05D1, - afii57666: 0x05D2, - afii57667: 0x05D3, - afii57668: 0x05D4, - afii57669: 0x05D5, - afii57670: 0x05D6, - afii57671: 0x05D7, - afii57672: 0x05D8, - afii57673: 0x05D9, - afii57674: 0x05DA, - afii57675: 0x05DB, - afii57676: 0x05DC, - afii57677: 0x05DD, - afii57678: 0x05DE, - afii57679: 0x05DF, - afii57680: 0x05E0, - afii57681: 0x05E1, - afii57682: 0x05E2, - afii57683: 0x05E3, - afii57684: 0x05E4, - afii57685: 0x05E5, - afii57686: 0x05E6, - afii57687: 0x05E7, - afii57688: 0x05E8, - afii57689: 0x05E9, - afii57690: 0x05EA, - afii57694: 0xFB2A, - afii57695: 0xFB2B, - afii57700: 0xFB4B, - afii57705: 0xFB1F, - afii57716: 0x05F0, - afii57717: 0x05F1, - afii57718: 0x05F2, - afii57723: 0xFB35, - afii57793: 0x05B4, - afii57794: 0x05B5, - afii57795: 0x05B6, - afii57796: 0x05BB, - afii57797: 0x05B8, - afii57798: 0x05B7, - afii57799: 0x05B0, - afii57800: 0x05B2, - afii57801: 0x05B1, - afii57802: 0x05B3, - afii57803: 0x05C2, - afii57804: 0x05C1, - afii57806: 0x05B9, - afii57807: 0x05BC, - afii57839: 0x05BD, - afii57841: 0x05BF, - afii57842: 0x05C0, - afii57929: 0x02BC, - afii61248: 0x2105, - afii61289: 0x2113, - afii61352: 0x2116, - afii61573: 0x202C, - afii61574: 0x202D, - afii61575: 0x202E, - afii61664: 0x200C, - afii63167: 0x066D, - afii64937: 0x02BD, - agrave: 0x00E0, - agujarati: 0x0A85, - agurmukhi: 0x0A05, - ahiragana: 0x3042, - ahookabove: 0x1EA3, - aibengali: 0x0990, - aibopomofo: 0x311E, - aideva: 0x0910, - aiecyrillic: 0x04D5, - aigujarati: 0x0A90, - aigurmukhi: 0x0A10, - aimatragurmukhi: 0x0A48, - ainarabic: 0x0639, - ainfinalarabic: 0xFECA, - aininitialarabic: 0xFECB, - ainmedialarabic: 0xFECC, - ainvertedbreve: 0x0203, - aivowelsignbengali: 0x09C8, - aivowelsigndeva: 0x0948, - aivowelsigngujarati: 0x0AC8, - akatakana: 0x30A2, - akatakanahalfwidth: 0xFF71, - akorean: 0x314F, - alef: 0x05D0, - alefarabic: 0x0627, - alefdageshhebrew: 0xFB30, - aleffinalarabic: 0xFE8E, - alefhamzaabovearabic: 0x0623, - alefhamzaabovefinalarabic: 0xFE84, - alefhamzabelowarabic: 0x0625, - alefhamzabelowfinalarabic: 0xFE88, - alefhebrew: 0x05D0, - aleflamedhebrew: 0xFB4F, - alefmaddaabovearabic: 0x0622, - alefmaddaabovefinalarabic: 0xFE82, - alefmaksuraarabic: 0x0649, - alefmaksurafinalarabic: 0xFEF0, - alefmaksurainitialarabic: 0xFEF3, - alefmaksuramedialarabic: 0xFEF4, - alefpatahhebrew: 0xFB2E, - alefqamatshebrew: 0xFB2F, - aleph: 0x2135, - allequal: 0x224C, - alpha: 0x03B1, - alphatonos: 0x03AC, - amacron: 0x0101, - amonospace: 0xFF41, - ampersand: 0x0026, - ampersandmonospace: 0xFF06, - ampersandsmall: 0xF726, - amsquare: 0x33C2, - anbopomofo: 0x3122, - angbopomofo: 0x3124, - angbracketleft: 0x3008, // This glyph is missing from Adobe's original list. - angbracketright: 0x3009, // This glyph is missing from Adobe's original list. - angkhankhuthai: 0x0E5A, - angle: 0x2220, - anglebracketleft: 0x3008, - anglebracketleftvertical: 0xFE3F, - anglebracketright: 0x3009, - anglebracketrightvertical: 0xFE40, - angleleft: 0x2329, - angleright: 0x232A, - angstrom: 0x212B, - anoteleia: 0x0387, - anudattadeva: 0x0952, - anusvarabengali: 0x0982, - anusvaradeva: 0x0902, - anusvaragujarati: 0x0A82, - aogonek: 0x0105, - apaatosquare: 0x3300, - aparen: 0x249C, - apostrophearmenian: 0x055A, - apostrophemod: 0x02BC, - apple: 0xF8FF, - approaches: 0x2250, - approxequal: 0x2248, - approxequalorimage: 0x2252, - approximatelyequal: 0x2245, - araeaekorean: 0x318E, - araeakorean: 0x318D, - arc: 0x2312, - arighthalfring: 0x1E9A, - aring: 0x00E5, - aringacute: 0x01FB, - aringbelow: 0x1E01, - arrowboth: 0x2194, - arrowdashdown: 0x21E3, - arrowdashleft: 0x21E0, - arrowdashright: 0x21E2, - arrowdashup: 0x21E1, - arrowdblboth: 0x21D4, - arrowdbldown: 0x21D3, - arrowdblleft: 0x21D0, - arrowdblright: 0x21D2, - arrowdblup: 0x21D1, - arrowdown: 0x2193, - arrowdownleft: 0x2199, - arrowdownright: 0x2198, - arrowdownwhite: 0x21E9, - arrowheaddownmod: 0x02C5, - arrowheadleftmod: 0x02C2, - arrowheadrightmod: 0x02C3, - arrowheadupmod: 0x02C4, - arrowhorizex: 0xF8E7, - arrowleft: 0x2190, - arrowleftdbl: 0x21D0, - arrowleftdblstroke: 0x21CD, - arrowleftoverright: 0x21C6, - arrowleftwhite: 0x21E6, - arrowright: 0x2192, - arrowrightdblstroke: 0x21CF, - arrowrightheavy: 0x279E, - arrowrightoverleft: 0x21C4, - arrowrightwhite: 0x21E8, - arrowtableft: 0x21E4, - arrowtabright: 0x21E5, - arrowup: 0x2191, - arrowupdn: 0x2195, - arrowupdnbse: 0x21A8, - arrowupdownbase: 0x21A8, - arrowupleft: 0x2196, - arrowupleftofdown: 0x21C5, - arrowupright: 0x2197, - arrowupwhite: 0x21E7, - arrowvertex: 0xF8E6, - asciicircum: 0x005E, - asciicircummonospace: 0xFF3E, - asciitilde: 0x007E, - asciitildemonospace: 0xFF5E, - ascript: 0x0251, - ascriptturned: 0x0252, - asmallhiragana: 0x3041, - asmallkatakana: 0x30A1, - asmallkatakanahalfwidth: 0xFF67, - asterisk: 0x002A, - asteriskaltonearabic: 0x066D, - asteriskarabic: 0x066D, - asteriskmath: 0x2217, - asteriskmonospace: 0xFF0A, - asterisksmall: 0xFE61, - asterism: 0x2042, - asuperior: 0xF6E9, - asymptoticallyequal: 0x2243, - at: 0x0040, - atilde: 0x00E3, - atmonospace: 0xFF20, - atsmall: 0xFE6B, - aturned: 0x0250, - aubengali: 0x0994, - aubopomofo: 0x3120, - audeva: 0x0914, - augujarati: 0x0A94, - augurmukhi: 0x0A14, - aulengthmarkbengali: 0x09D7, - aumatragurmukhi: 0x0A4C, - auvowelsignbengali: 0x09CC, - auvowelsigndeva: 0x094C, - auvowelsigngujarati: 0x0ACC, - avagrahadeva: 0x093D, - aybarmenian: 0x0561, - ayin: 0x05E2, - ayinaltonehebrew: 0xFB20, - ayinhebrew: 0x05E2, - b: 0x0062, - babengali: 0x09AC, - backslash: 0x005C, - backslashmonospace: 0xFF3C, - badeva: 0x092C, - bagujarati: 0x0AAC, - bagurmukhi: 0x0A2C, - bahiragana: 0x3070, - bahtthai: 0x0E3F, - bakatakana: 0x30D0, - bar: 0x007C, - barmonospace: 0xFF5C, - bbopomofo: 0x3105, - bcircle: 0x24D1, - bdotaccent: 0x1E03, - bdotbelow: 0x1E05, - beamedsixteenthnotes: 0x266C, - because: 0x2235, - becyrillic: 0x0431, - beharabic: 0x0628, - behfinalarabic: 0xFE90, - behinitialarabic: 0xFE91, - behiragana: 0x3079, - behmedialarabic: 0xFE92, - behmeeminitialarabic: 0xFC9F, - behmeemisolatedarabic: 0xFC08, - behnoonfinalarabic: 0xFC6D, - bekatakana: 0x30D9, - benarmenian: 0x0562, - bet: 0x05D1, - beta: 0x03B2, - betasymbolgreek: 0x03D0, - betdagesh: 0xFB31, - betdageshhebrew: 0xFB31, - bethebrew: 0x05D1, - betrafehebrew: 0xFB4C, - bhabengali: 0x09AD, - bhadeva: 0x092D, - bhagujarati: 0x0AAD, - bhagurmukhi: 0x0A2D, - bhook: 0x0253, - bihiragana: 0x3073, - bikatakana: 0x30D3, - bilabialclick: 0x0298, - bindigurmukhi: 0x0A02, - birusquare: 0x3331, - blackcircle: 0x25CF, - blackdiamond: 0x25C6, - blackdownpointingtriangle: 0x25BC, - blackleftpointingpointer: 0x25C4, - blackleftpointingtriangle: 0x25C0, - blacklenticularbracketleft: 0x3010, - blacklenticularbracketleftvertical: 0xFE3B, - blacklenticularbracketright: 0x3011, - blacklenticularbracketrightvertical: 0xFE3C, - blacklowerlefttriangle: 0x25E3, - blacklowerrighttriangle: 0x25E2, - blackrectangle: 0x25AC, - blackrightpointingpointer: 0x25BA, - blackrightpointingtriangle: 0x25B6, - blacksmallsquare: 0x25AA, - blacksmilingface: 0x263B, - blacksquare: 0x25A0, - blackstar: 0x2605, - blackupperlefttriangle: 0x25E4, - blackupperrighttriangle: 0x25E5, - blackuppointingsmalltriangle: 0x25B4, - blackuppointingtriangle: 0x25B2, - blank: 0x2423, - blinebelow: 0x1E07, - block: 0x2588, - bmonospace: 0xFF42, - bobaimaithai: 0x0E1A, - bohiragana: 0x307C, - bokatakana: 0x30DC, - bparen: 0x249D, - bqsquare: 0x33C3, - braceex: 0xF8F4, - braceleft: 0x007B, - braceleftbt: 0xF8F3, - braceleftmid: 0xF8F2, - braceleftmonospace: 0xFF5B, - braceleftsmall: 0xFE5B, - bracelefttp: 0xF8F1, - braceleftvertical: 0xFE37, - braceright: 0x007D, - bracerightbt: 0xF8FE, - bracerightmid: 0xF8FD, - bracerightmonospace: 0xFF5D, - bracerightsmall: 0xFE5C, - bracerighttp: 0xF8FC, - bracerightvertical: 0xFE38, - bracketleft: 0x005B, - bracketleftbt: 0xF8F0, - bracketleftex: 0xF8EF, - bracketleftmonospace: 0xFF3B, - bracketlefttp: 0xF8EE, - bracketright: 0x005D, - bracketrightbt: 0xF8FB, - bracketrightex: 0xF8FA, - bracketrightmonospace: 0xFF3D, - bracketrighttp: 0xF8F9, - breve: 0x02D8, - brevebelowcmb: 0x032E, - brevecmb: 0x0306, - breveinvertedbelowcmb: 0x032F, - breveinvertedcmb: 0x0311, - breveinverteddoublecmb: 0x0361, - bridgebelowcmb: 0x032A, - bridgeinvertedbelowcmb: 0x033A, - brokenbar: 0x00A6, - bstroke: 0x0180, - bsuperior: 0xF6EA, - btopbar: 0x0183, - buhiragana: 0x3076, - bukatakana: 0x30D6, - bullet: 0x2022, - bulletinverse: 0x25D8, - bulletoperator: 0x2219, - bullseye: 0x25CE, - c: 0x0063, - caarmenian: 0x056E, - cabengali: 0x099A, - cacute: 0x0107, - cadeva: 0x091A, - cagujarati: 0x0A9A, - cagurmukhi: 0x0A1A, - calsquare: 0x3388, - candrabindubengali: 0x0981, - candrabinducmb: 0x0310, - candrabindudeva: 0x0901, - candrabindugujarati: 0x0A81, - capslock: 0x21EA, - careof: 0x2105, - caron: 0x02C7, - caronbelowcmb: 0x032C, - caroncmb: 0x030C, - carriagereturn: 0x21B5, - cbopomofo: 0x3118, - ccaron: 0x010D, - ccedilla: 0x00E7, - ccedillaacute: 0x1E09, - ccircle: 0x24D2, - ccircumflex: 0x0109, - ccurl: 0x0255, - cdot: 0x010B, - cdotaccent: 0x010B, - cdsquare: 0x33C5, - cedilla: 0x00B8, - cedillacmb: 0x0327, - cent: 0x00A2, - centigrade: 0x2103, - centinferior: 0xF6DF, - centmonospace: 0xFFE0, - centoldstyle: 0xF7A2, - centsuperior: 0xF6E0, - chaarmenian: 0x0579, - chabengali: 0x099B, - chadeva: 0x091B, - chagujarati: 0x0A9B, - chagurmukhi: 0x0A1B, - chbopomofo: 0x3114, - cheabkhasiancyrillic: 0x04BD, - checkmark: 0x2713, - checyrillic: 0x0447, - chedescenderabkhasiancyrillic: 0x04BF, - chedescendercyrillic: 0x04B7, - chedieresiscyrillic: 0x04F5, - cheharmenian: 0x0573, - chekhakassiancyrillic: 0x04CC, - cheverticalstrokecyrillic: 0x04B9, - chi: 0x03C7, - chieuchacirclekorean: 0x3277, - chieuchaparenkorean: 0x3217, - chieuchcirclekorean: 0x3269, - chieuchkorean: 0x314A, - chieuchparenkorean: 0x3209, - chochangthai: 0x0E0A, - chochanthai: 0x0E08, - chochingthai: 0x0E09, - chochoethai: 0x0E0C, - chook: 0x0188, - cieucacirclekorean: 0x3276, - cieucaparenkorean: 0x3216, - cieuccirclekorean: 0x3268, - cieuckorean: 0x3148, - cieucparenkorean: 0x3208, - cieucuparenkorean: 0x321C, - circle: 0x25CB, - circlecopyrt: 0x00A9, // This glyph is missing from Adobe's original list. - circlemultiply: 0x2297, - circleot: 0x2299, - circleplus: 0x2295, - circlepostalmark: 0x3036, - circlewithlefthalfblack: 0x25D0, - circlewithrighthalfblack: 0x25D1, - circumflex: 0x02C6, - circumflexbelowcmb: 0x032D, - circumflexcmb: 0x0302, - clear: 0x2327, - clickalveolar: 0x01C2, - clickdental: 0x01C0, - clicklateral: 0x01C1, - clickretroflex: 0x01C3, - club: 0x2663, - clubsuitblack: 0x2663, - clubsuitwhite: 0x2667, - cmcubedsquare: 0x33A4, - cmonospace: 0xFF43, - cmsquaredsquare: 0x33A0, - coarmenian: 0x0581, - colon: 0x003A, - colonmonetary: 0x20A1, - colonmonospace: 0xFF1A, - colonsign: 0x20A1, - colonsmall: 0xFE55, - colontriangularhalfmod: 0x02D1, - colontriangularmod: 0x02D0, - comma: 0x002C, - commaabovecmb: 0x0313, - commaaboverightcmb: 0x0315, - commaaccent: 0xF6C3, - commaarabic: 0x060C, - commaarmenian: 0x055D, - commainferior: 0xF6E1, - commamonospace: 0xFF0C, - commareversedabovecmb: 0x0314, - commareversedmod: 0x02BD, - commasmall: 0xFE50, - commasuperior: 0xF6E2, - commaturnedabovecmb: 0x0312, - commaturnedmod: 0x02BB, - compass: 0x263C, - congruent: 0x2245, - contourintegral: 0x222E, - control: 0x2303, - controlACK: 0x0006, - controlBEL: 0x0007, - controlBS: 0x0008, - controlCAN: 0x0018, - controlCR: 0x000D, - controlDC1: 0x0011, - controlDC2: 0x0012, - controlDC3: 0x0013, - controlDC4: 0x0014, - controlDEL: 0x007F, - controlDLE: 0x0010, - controlEM: 0x0019, - controlENQ: 0x0005, - controlEOT: 0x0004, - controlESC: 0x001B, - controlETB: 0x0017, - controlETX: 0x0003, - controlFF: 0x000C, - controlFS: 0x001C, - controlGS: 0x001D, - controlHT: 0x0009, - controlLF: 0x000A, - controlNAK: 0x0015, - controlRS: 0x001E, - controlSI: 0x000F, - controlSO: 0x000E, - controlSOT: 0x0002, - controlSTX: 0x0001, - controlSUB: 0x001A, - controlSYN: 0x0016, - controlUS: 0x001F, - controlVT: 0x000B, - copyright: 0x00A9, - copyrightsans: 0xF8E9, - copyrightserif: 0xF6D9, - cornerbracketleft: 0x300C, - cornerbracketlefthalfwidth: 0xFF62, - cornerbracketleftvertical: 0xFE41, - cornerbracketright: 0x300D, - cornerbracketrighthalfwidth: 0xFF63, - cornerbracketrightvertical: 0xFE42, - corporationsquare: 0x337F, - cosquare: 0x33C7, - coverkgsquare: 0x33C6, - cparen: 0x249E, - cruzeiro: 0x20A2, - cstretched: 0x0297, - curlyand: 0x22CF, - curlyor: 0x22CE, - currency: 0x00A4, - cyrBreve: 0xF6D1, - cyrFlex: 0xF6D2, - cyrbreve: 0xF6D4, - cyrflex: 0xF6D5, - d: 0x0064, - daarmenian: 0x0564, - dabengali: 0x09A6, - dadarabic: 0x0636, - dadeva: 0x0926, - dadfinalarabic: 0xFEBE, - dadinitialarabic: 0xFEBF, - dadmedialarabic: 0xFEC0, - dagesh: 0x05BC, - dageshhebrew: 0x05BC, - dagger: 0x2020, - daggerdbl: 0x2021, - dagujarati: 0x0AA6, - dagurmukhi: 0x0A26, - dahiragana: 0x3060, - dakatakana: 0x30C0, - dalarabic: 0x062F, - dalet: 0x05D3, - daletdagesh: 0xFB33, - daletdageshhebrew: 0xFB33, - dalethebrew: 0x05D3, - dalfinalarabic: 0xFEAA, - dammaarabic: 0x064F, - dammalowarabic: 0x064F, - dammatanaltonearabic: 0x064C, - dammatanarabic: 0x064C, - danda: 0x0964, - dargahebrew: 0x05A7, - dargalefthebrew: 0x05A7, - dasiapneumatacyrilliccmb: 0x0485, - dblGrave: 0xF6D3, - dblanglebracketleft: 0x300A, - dblanglebracketleftvertical: 0xFE3D, - dblanglebracketright: 0x300B, - dblanglebracketrightvertical: 0xFE3E, - dblarchinvertedbelowcmb: 0x032B, - dblarrowleft: 0x21D4, - dblarrowright: 0x21D2, - dbldanda: 0x0965, - dblgrave: 0xF6D6, - dblgravecmb: 0x030F, - dblintegral: 0x222C, - dbllowline: 0x2017, - dbllowlinecmb: 0x0333, - dbloverlinecmb: 0x033F, - dblprimemod: 0x02BA, - dblverticalbar: 0x2016, - dblverticallineabovecmb: 0x030E, - dbopomofo: 0x3109, - dbsquare: 0x33C8, - dcaron: 0x010F, - dcedilla: 0x1E11, - dcircle: 0x24D3, - dcircumflexbelow: 0x1E13, - dcroat: 0x0111, - ddabengali: 0x09A1, - ddadeva: 0x0921, - ddagujarati: 0x0AA1, - ddagurmukhi: 0x0A21, - ddalarabic: 0x0688, - ddalfinalarabic: 0xFB89, - dddhadeva: 0x095C, - ddhabengali: 0x09A2, - ddhadeva: 0x0922, - ddhagujarati: 0x0AA2, - ddhagurmukhi: 0x0A22, - ddotaccent: 0x1E0B, - ddotbelow: 0x1E0D, - decimalseparatorarabic: 0x066B, - decimalseparatorpersian: 0x066B, - decyrillic: 0x0434, - degree: 0x00B0, - dehihebrew: 0x05AD, - dehiragana: 0x3067, - deicoptic: 0x03EF, - dekatakana: 0x30C7, - deleteleft: 0x232B, - deleteright: 0x2326, - delta: 0x03B4, - deltaturned: 0x018D, - denominatorminusonenumeratorbengali: 0x09F8, - dezh: 0x02A4, - dhabengali: 0x09A7, - dhadeva: 0x0927, - dhagujarati: 0x0AA7, - dhagurmukhi: 0x0A27, - dhook: 0x0257, - dialytikatonos: 0x0385, - dialytikatonoscmb: 0x0344, - diamond: 0x2666, - diamondsuitwhite: 0x2662, - dieresis: 0x00A8, - dieresisacute: 0xF6D7, - dieresisbelowcmb: 0x0324, - dieresiscmb: 0x0308, - dieresisgrave: 0xF6D8, - dieresistonos: 0x0385, - dihiragana: 0x3062, - dikatakana: 0x30C2, - dittomark: 0x3003, - divide: 0x00F7, - divides: 0x2223, - divisionslash: 0x2215, - djecyrillic: 0x0452, - dkshade: 0x2593, - dlinebelow: 0x1E0F, - dlsquare: 0x3397, - dmacron: 0x0111, - dmonospace: 0xFF44, - dnblock: 0x2584, - dochadathai: 0x0E0E, - dodekthai: 0x0E14, - dohiragana: 0x3069, - dokatakana: 0x30C9, - dollar: 0x0024, - dollarinferior: 0xF6E3, - dollarmonospace: 0xFF04, - dollaroldstyle: 0xF724, - dollarsmall: 0xFE69, - dollarsuperior: 0xF6E4, - dong: 0x20AB, - dorusquare: 0x3326, - dotaccent: 0x02D9, - dotaccentcmb: 0x0307, - dotbelowcmb: 0x0323, - dotbelowcomb: 0x0323, - dotkatakana: 0x30FB, - dotlessi: 0x0131, - dotlessj: 0xF6BE, - dotlessjstrokehook: 0x0284, - dotmath: 0x22C5, - dottedcircle: 0x25CC, - doubleyodpatah: 0xFB1F, - doubleyodpatahhebrew: 0xFB1F, - downtackbelowcmb: 0x031E, - downtackmod: 0x02D5, - dparen: 0x249F, - dsuperior: 0xF6EB, - dtail: 0x0256, - dtopbar: 0x018C, - duhiragana: 0x3065, - dukatakana: 0x30C5, - dz: 0x01F3, - dzaltone: 0x02A3, - dzcaron: 0x01C6, - dzcurl: 0x02A5, - dzeabkhasiancyrillic: 0x04E1, - dzecyrillic: 0x0455, - dzhecyrillic: 0x045F, - e: 0x0065, - eacute: 0x00E9, - earth: 0x2641, - ebengali: 0x098F, - ebopomofo: 0x311C, - ebreve: 0x0115, - ecandradeva: 0x090D, - ecandragujarati: 0x0A8D, - ecandravowelsigndeva: 0x0945, - ecandravowelsigngujarati: 0x0AC5, - ecaron: 0x011B, - ecedillabreve: 0x1E1D, - echarmenian: 0x0565, - echyiwnarmenian: 0x0587, - ecircle: 0x24D4, - ecircumflex: 0x00EA, - ecircumflexacute: 0x1EBF, - ecircumflexbelow: 0x1E19, - ecircumflexdotbelow: 0x1EC7, - ecircumflexgrave: 0x1EC1, - ecircumflexhookabove: 0x1EC3, - ecircumflextilde: 0x1EC5, - ecyrillic: 0x0454, - edblgrave: 0x0205, - edeva: 0x090F, - edieresis: 0x00EB, - edot: 0x0117, - edotaccent: 0x0117, - edotbelow: 0x1EB9, - eegurmukhi: 0x0A0F, - eematragurmukhi: 0x0A47, - efcyrillic: 0x0444, - egrave: 0x00E8, - egujarati: 0x0A8F, - eharmenian: 0x0567, - ehbopomofo: 0x311D, - ehiragana: 0x3048, - ehookabove: 0x1EBB, - eibopomofo: 0x311F, - eight: 0x0038, - eightarabic: 0x0668, - eightbengali: 0x09EE, - eightcircle: 0x2467, - eightcircleinversesansserif: 0x2791, - eightdeva: 0x096E, - eighteencircle: 0x2471, - eighteenparen: 0x2485, - eighteenperiod: 0x2499, - eightgujarati: 0x0AEE, - eightgurmukhi: 0x0A6E, - eighthackarabic: 0x0668, - eighthangzhou: 0x3028, - eighthnotebeamed: 0x266B, - eightideographicparen: 0x3227, - eightinferior: 0x2088, - eightmonospace: 0xFF18, - eightoldstyle: 0xF738, - eightparen: 0x247B, - eightperiod: 0x248F, - eightpersian: 0x06F8, - eightroman: 0x2177, - eightsuperior: 0x2078, - eightthai: 0x0E58, - einvertedbreve: 0x0207, - eiotifiedcyrillic: 0x0465, - ekatakana: 0x30A8, - ekatakanahalfwidth: 0xFF74, - ekonkargurmukhi: 0x0A74, - ekorean: 0x3154, - elcyrillic: 0x043B, - element: 0x2208, - elevencircle: 0x246A, - elevenparen: 0x247E, - elevenperiod: 0x2492, - elevenroman: 0x217A, - ellipsis: 0x2026, - ellipsisvertical: 0x22EE, - emacron: 0x0113, - emacronacute: 0x1E17, - emacrongrave: 0x1E15, - emcyrillic: 0x043C, - emdash: 0x2014, - emdashvertical: 0xFE31, - emonospace: 0xFF45, - emphasismarkarmenian: 0x055B, - emptyset: 0x2205, - enbopomofo: 0x3123, - encyrillic: 0x043D, - endash: 0x2013, - endashvertical: 0xFE32, - endescendercyrillic: 0x04A3, - eng: 0x014B, - engbopomofo: 0x3125, - enghecyrillic: 0x04A5, - enhookcyrillic: 0x04C8, - enspace: 0x2002, - eogonek: 0x0119, - eokorean: 0x3153, - eopen: 0x025B, - eopenclosed: 0x029A, - eopenreversed: 0x025C, - eopenreversedclosed: 0x025E, - eopenreversedhook: 0x025D, - eparen: 0x24A0, - epsilon: 0x03B5, - epsilontonos: 0x03AD, - equal: 0x003D, - equalmonospace: 0xFF1D, - equalsmall: 0xFE66, - equalsuperior: 0x207C, - equivalence: 0x2261, - erbopomofo: 0x3126, - ercyrillic: 0x0440, - ereversed: 0x0258, - ereversedcyrillic: 0x044D, - escyrillic: 0x0441, - esdescendercyrillic: 0x04AB, - esh: 0x0283, - eshcurl: 0x0286, - eshortdeva: 0x090E, - eshortvowelsigndeva: 0x0946, - eshreversedloop: 0x01AA, - eshsquatreversed: 0x0285, - esmallhiragana: 0x3047, - esmallkatakana: 0x30A7, - esmallkatakanahalfwidth: 0xFF6A, - estimated: 0x212E, - esuperior: 0xF6EC, - eta: 0x03B7, - etarmenian: 0x0568, - etatonos: 0x03AE, - eth: 0x00F0, - etilde: 0x1EBD, - etildebelow: 0x1E1B, - etnahtafoukhhebrew: 0x0591, - etnahtafoukhlefthebrew: 0x0591, - etnahtahebrew: 0x0591, - etnahtalefthebrew: 0x0591, - eturned: 0x01DD, - eukorean: 0x3161, - euro: 0x20AC, - evowelsignbengali: 0x09C7, - evowelsigndeva: 0x0947, - evowelsigngujarati: 0x0AC7, - exclam: 0x0021, - exclamarmenian: 0x055C, - exclamdbl: 0x203C, - exclamdown: 0x00A1, - exclamdownsmall: 0xF7A1, - exclammonospace: 0xFF01, - exclamsmall: 0xF721, - existential: 0x2203, - ezh: 0x0292, - ezhcaron: 0x01EF, - ezhcurl: 0x0293, - ezhreversed: 0x01B9, - ezhtail: 0x01BA, - f: 0x0066, - fadeva: 0x095E, - fagurmukhi: 0x0A5E, - fahrenheit: 0x2109, - fathaarabic: 0x064E, - fathalowarabic: 0x064E, - fathatanarabic: 0x064B, - fbopomofo: 0x3108, - fcircle: 0x24D5, - fdotaccent: 0x1E1F, - feharabic: 0x0641, - feharmenian: 0x0586, - fehfinalarabic: 0xFED2, - fehinitialarabic: 0xFED3, - fehmedialarabic: 0xFED4, - feicoptic: 0x03E5, - female: 0x2640, - ff: 0xFB00, - ffi: 0xFB03, - ffl: 0xFB04, - fi: 0xFB01, - fifteencircle: 0x246E, - fifteenparen: 0x2482, - fifteenperiod: 0x2496, - figuredash: 0x2012, - filledbox: 0x25A0, - filledrect: 0x25AC, - finalkaf: 0x05DA, - finalkafdagesh: 0xFB3A, - finalkafdageshhebrew: 0xFB3A, - finalkafhebrew: 0x05DA, - finalmem: 0x05DD, - finalmemhebrew: 0x05DD, - finalnun: 0x05DF, - finalnunhebrew: 0x05DF, - finalpe: 0x05E3, - finalpehebrew: 0x05E3, - finaltsadi: 0x05E5, - finaltsadihebrew: 0x05E5, - firsttonechinese: 0x02C9, - fisheye: 0x25C9, - fitacyrillic: 0x0473, - five: 0x0035, - fivearabic: 0x0665, - fivebengali: 0x09EB, - fivecircle: 0x2464, - fivecircleinversesansserif: 0x278E, - fivedeva: 0x096B, - fiveeighths: 0x215D, - fivegujarati: 0x0AEB, - fivegurmukhi: 0x0A6B, - fivehackarabic: 0x0665, - fivehangzhou: 0x3025, - fiveideographicparen: 0x3224, - fiveinferior: 0x2085, - fivemonospace: 0xFF15, - fiveoldstyle: 0xF735, - fiveparen: 0x2478, - fiveperiod: 0x248C, - fivepersian: 0x06F5, - fiveroman: 0x2174, - fivesuperior: 0x2075, - fivethai: 0x0E55, - fl: 0xFB02, - florin: 0x0192, - fmonospace: 0xFF46, - fmsquare: 0x3399, - fofanthai: 0x0E1F, - fofathai: 0x0E1D, - fongmanthai: 0x0E4F, - forall: 0x2200, - four: 0x0034, - fourarabic: 0x0664, - fourbengali: 0x09EA, - fourcircle: 0x2463, - fourcircleinversesansserif: 0x278D, - fourdeva: 0x096A, - fourgujarati: 0x0AEA, - fourgurmukhi: 0x0A6A, - fourhackarabic: 0x0664, - fourhangzhou: 0x3024, - fourideographicparen: 0x3223, - fourinferior: 0x2084, - fourmonospace: 0xFF14, - fournumeratorbengali: 0x09F7, - fouroldstyle: 0xF734, - fourparen: 0x2477, - fourperiod: 0x248B, - fourpersian: 0x06F4, - fourroman: 0x2173, - foursuperior: 0x2074, - fourteencircle: 0x246D, - fourteenparen: 0x2481, - fourteenperiod: 0x2495, - fourthai: 0x0E54, - fourthtonechinese: 0x02CB, - fparen: 0x24A1, - fraction: 0x2044, - franc: 0x20A3, - g: 0x0067, - gabengali: 0x0997, - gacute: 0x01F5, - gadeva: 0x0917, - gafarabic: 0x06AF, - gaffinalarabic: 0xFB93, - gafinitialarabic: 0xFB94, - gafmedialarabic: 0xFB95, - gagujarati: 0x0A97, - gagurmukhi: 0x0A17, - gahiragana: 0x304C, - gakatakana: 0x30AC, - gamma: 0x03B3, - gammalatinsmall: 0x0263, - gammasuperior: 0x02E0, - gangiacoptic: 0x03EB, - gbopomofo: 0x310D, - gbreve: 0x011F, - gcaron: 0x01E7, - gcedilla: 0x0123, - gcircle: 0x24D6, - gcircumflex: 0x011D, - gcommaaccent: 0x0123, - gdot: 0x0121, - gdotaccent: 0x0121, - gecyrillic: 0x0433, - gehiragana: 0x3052, - gekatakana: 0x30B2, - geometricallyequal: 0x2251, - gereshaccenthebrew: 0x059C, - gereshhebrew: 0x05F3, - gereshmuqdamhebrew: 0x059D, - germandbls: 0x00DF, - gershayimaccenthebrew: 0x059E, - gershayimhebrew: 0x05F4, - getamark: 0x3013, - ghabengali: 0x0998, - ghadarmenian: 0x0572, - ghadeva: 0x0918, - ghagujarati: 0x0A98, - ghagurmukhi: 0x0A18, - ghainarabic: 0x063A, - ghainfinalarabic: 0xFECE, - ghaininitialarabic: 0xFECF, - ghainmedialarabic: 0xFED0, - ghemiddlehookcyrillic: 0x0495, - ghestrokecyrillic: 0x0493, - gheupturncyrillic: 0x0491, - ghhadeva: 0x095A, - ghhagurmukhi: 0x0A5A, - ghook: 0x0260, - ghzsquare: 0x3393, - gihiragana: 0x304E, - gikatakana: 0x30AE, - gimarmenian: 0x0563, - gimel: 0x05D2, - gimeldagesh: 0xFB32, - gimeldageshhebrew: 0xFB32, - gimelhebrew: 0x05D2, - gjecyrillic: 0x0453, - glottalinvertedstroke: 0x01BE, - glottalstop: 0x0294, - glottalstopinverted: 0x0296, - glottalstopmod: 0x02C0, - glottalstopreversed: 0x0295, - glottalstopreversedmod: 0x02C1, - glottalstopreversedsuperior: 0x02E4, - glottalstopstroke: 0x02A1, - glottalstopstrokereversed: 0x02A2, - gmacron: 0x1E21, - gmonospace: 0xFF47, - gohiragana: 0x3054, - gokatakana: 0x30B4, - gparen: 0x24A2, - gpasquare: 0x33AC, - gradient: 0x2207, - grave: 0x0060, - gravebelowcmb: 0x0316, - gravecmb: 0x0300, - gravecomb: 0x0300, - gravedeva: 0x0953, - gravelowmod: 0x02CE, - gravemonospace: 0xFF40, - gravetonecmb: 0x0340, - greater: 0x003E, - greaterequal: 0x2265, - greaterequalorless: 0x22DB, - greatermonospace: 0xFF1E, - greaterorequivalent: 0x2273, - greaterorless: 0x2277, - greateroverequal: 0x2267, - greatersmall: 0xFE65, - gscript: 0x0261, - gstroke: 0x01E5, - guhiragana: 0x3050, - guillemotleft: 0x00AB, - guillemotright: 0x00BB, - guilsinglleft: 0x2039, - guilsinglright: 0x203A, - gukatakana: 0x30B0, - guramusquare: 0x3318, - gysquare: 0x33C9, - h: 0x0068, - haabkhasiancyrillic: 0x04A9, - haaltonearabic: 0x06C1, - habengali: 0x09B9, - hadescendercyrillic: 0x04B3, - hadeva: 0x0939, - hagujarati: 0x0AB9, - hagurmukhi: 0x0A39, - haharabic: 0x062D, - hahfinalarabic: 0xFEA2, - hahinitialarabic: 0xFEA3, - hahiragana: 0x306F, - hahmedialarabic: 0xFEA4, - haitusquare: 0x332A, - hakatakana: 0x30CF, - hakatakanahalfwidth: 0xFF8A, - halantgurmukhi: 0x0A4D, - hamzaarabic: 0x0621, - hamzalowarabic: 0x0621, - hangulfiller: 0x3164, - hardsigncyrillic: 0x044A, - harpoonleftbarbup: 0x21BC, - harpoonrightbarbup: 0x21C0, - hasquare: 0x33CA, - hatafpatah: 0x05B2, - hatafpatah16: 0x05B2, - hatafpatah23: 0x05B2, - hatafpatah2f: 0x05B2, - hatafpatahhebrew: 0x05B2, - hatafpatahnarrowhebrew: 0x05B2, - hatafpatahquarterhebrew: 0x05B2, - hatafpatahwidehebrew: 0x05B2, - hatafqamats: 0x05B3, - hatafqamats1b: 0x05B3, - hatafqamats28: 0x05B3, - hatafqamats34: 0x05B3, - hatafqamatshebrew: 0x05B3, - hatafqamatsnarrowhebrew: 0x05B3, - hatafqamatsquarterhebrew: 0x05B3, - hatafqamatswidehebrew: 0x05B3, - hatafsegol: 0x05B1, - hatafsegol17: 0x05B1, - hatafsegol24: 0x05B1, - hatafsegol30: 0x05B1, - hatafsegolhebrew: 0x05B1, - hatafsegolnarrowhebrew: 0x05B1, - hatafsegolquarterhebrew: 0x05B1, - hatafsegolwidehebrew: 0x05B1, - hbar: 0x0127, - hbopomofo: 0x310F, - hbrevebelow: 0x1E2B, - hcedilla: 0x1E29, - hcircle: 0x24D7, - hcircumflex: 0x0125, - hdieresis: 0x1E27, - hdotaccent: 0x1E23, - hdotbelow: 0x1E25, - he: 0x05D4, - heart: 0x2665, - heartsuitblack: 0x2665, - heartsuitwhite: 0x2661, - hedagesh: 0xFB34, - hedageshhebrew: 0xFB34, - hehaltonearabic: 0x06C1, - heharabic: 0x0647, - hehebrew: 0x05D4, - hehfinalaltonearabic: 0xFBA7, - hehfinalalttwoarabic: 0xFEEA, - hehfinalarabic: 0xFEEA, - hehhamzaabovefinalarabic: 0xFBA5, - hehhamzaaboveisolatedarabic: 0xFBA4, - hehinitialaltonearabic: 0xFBA8, - hehinitialarabic: 0xFEEB, - hehiragana: 0x3078, - hehmedialaltonearabic: 0xFBA9, - hehmedialarabic: 0xFEEC, - heiseierasquare: 0x337B, - hekatakana: 0x30D8, - hekatakanahalfwidth: 0xFF8D, - hekutaarusquare: 0x3336, - henghook: 0x0267, - herutusquare: 0x3339, - het: 0x05D7, - hethebrew: 0x05D7, - hhook: 0x0266, - hhooksuperior: 0x02B1, - hieuhacirclekorean: 0x327B, - hieuhaparenkorean: 0x321B, - hieuhcirclekorean: 0x326D, - hieuhkorean: 0x314E, - hieuhparenkorean: 0x320D, - hihiragana: 0x3072, - hikatakana: 0x30D2, - hikatakanahalfwidth: 0xFF8B, - hiriq: 0x05B4, - hiriq14: 0x05B4, - hiriq21: 0x05B4, - hiriq2d: 0x05B4, - hiriqhebrew: 0x05B4, - hiriqnarrowhebrew: 0x05B4, - hiriqquarterhebrew: 0x05B4, - hiriqwidehebrew: 0x05B4, - hlinebelow: 0x1E96, - hmonospace: 0xFF48, - hoarmenian: 0x0570, - hohipthai: 0x0E2B, - hohiragana: 0x307B, - hokatakana: 0x30DB, - hokatakanahalfwidth: 0xFF8E, - holam: 0x05B9, - holam19: 0x05B9, - holam26: 0x05B9, - holam32: 0x05B9, - holamhebrew: 0x05B9, - holamnarrowhebrew: 0x05B9, - holamquarterhebrew: 0x05B9, - holamwidehebrew: 0x05B9, - honokhukthai: 0x0E2E, - hookabovecomb: 0x0309, - hookcmb: 0x0309, - hookpalatalizedbelowcmb: 0x0321, - hookretroflexbelowcmb: 0x0322, - hoonsquare: 0x3342, - horicoptic: 0x03E9, - horizontalbar: 0x2015, - horncmb: 0x031B, - hotsprings: 0x2668, - house: 0x2302, - hparen: 0x24A3, - hsuperior: 0x02B0, - hturned: 0x0265, - huhiragana: 0x3075, - huiitosquare: 0x3333, - hukatakana: 0x30D5, - hukatakanahalfwidth: 0xFF8C, - hungarumlaut: 0x02DD, - hungarumlautcmb: 0x030B, - hv: 0x0195, - hyphen: 0x002D, - hypheninferior: 0xF6E5, - hyphenmonospace: 0xFF0D, - hyphensmall: 0xFE63, - hyphensuperior: 0xF6E6, - hyphentwo: 0x2010, - i: 0x0069, - iacute: 0x00ED, - iacyrillic: 0x044F, - ibengali: 0x0987, - ibopomofo: 0x3127, - ibreve: 0x012D, - icaron: 0x01D0, - icircle: 0x24D8, - icircumflex: 0x00EE, - icyrillic: 0x0456, - idblgrave: 0x0209, - ideographearthcircle: 0x328F, - ideographfirecircle: 0x328B, - ideographicallianceparen: 0x323F, - ideographiccallparen: 0x323A, - ideographiccentrecircle: 0x32A5, - ideographicclose: 0x3006, - ideographiccomma: 0x3001, - ideographiccommaleft: 0xFF64, - ideographiccongratulationparen: 0x3237, - ideographiccorrectcircle: 0x32A3, - ideographicearthparen: 0x322F, - ideographicenterpriseparen: 0x323D, - ideographicexcellentcircle: 0x329D, - ideographicfestivalparen: 0x3240, - ideographicfinancialcircle: 0x3296, - ideographicfinancialparen: 0x3236, - ideographicfireparen: 0x322B, - ideographichaveparen: 0x3232, - ideographichighcircle: 0x32A4, - ideographiciterationmark: 0x3005, - ideographiclaborcircle: 0x3298, - ideographiclaborparen: 0x3238, - ideographicleftcircle: 0x32A7, - ideographiclowcircle: 0x32A6, - ideographicmedicinecircle: 0x32A9, - ideographicmetalparen: 0x322E, - ideographicmoonparen: 0x322A, - ideographicnameparen: 0x3234, - ideographicperiod: 0x3002, - ideographicprintcircle: 0x329E, - ideographicreachparen: 0x3243, - ideographicrepresentparen: 0x3239, - ideographicresourceparen: 0x323E, - ideographicrightcircle: 0x32A8, - ideographicsecretcircle: 0x3299, - ideographicselfparen: 0x3242, - ideographicsocietyparen: 0x3233, - ideographicspace: 0x3000, - ideographicspecialparen: 0x3235, - ideographicstockparen: 0x3231, - ideographicstudyparen: 0x323B, - ideographicsunparen: 0x3230, - ideographicsuperviseparen: 0x323C, - ideographicwaterparen: 0x322C, - ideographicwoodparen: 0x322D, - ideographiczero: 0x3007, - ideographmetalcircle: 0x328E, - ideographmooncircle: 0x328A, - ideographnamecircle: 0x3294, - ideographsuncircle: 0x3290, - ideographwatercircle: 0x328C, - ideographwoodcircle: 0x328D, - ideva: 0x0907, - idieresis: 0x00EF, - idieresisacute: 0x1E2F, - idieresiscyrillic: 0x04E5, - idotbelow: 0x1ECB, - iebrevecyrillic: 0x04D7, - iecyrillic: 0x0435, - ieungacirclekorean: 0x3275, - ieungaparenkorean: 0x3215, - ieungcirclekorean: 0x3267, - ieungkorean: 0x3147, - ieungparenkorean: 0x3207, - igrave: 0x00EC, - igujarati: 0x0A87, - igurmukhi: 0x0A07, - ihiragana: 0x3044, - ihookabove: 0x1EC9, - iibengali: 0x0988, - iicyrillic: 0x0438, - iideva: 0x0908, - iigujarati: 0x0A88, - iigurmukhi: 0x0A08, - iimatragurmukhi: 0x0A40, - iinvertedbreve: 0x020B, - iishortcyrillic: 0x0439, - iivowelsignbengali: 0x09C0, - iivowelsigndeva: 0x0940, - iivowelsigngujarati: 0x0AC0, - ij: 0x0133, - ikatakana: 0x30A4, - ikatakanahalfwidth: 0xFF72, - ikorean: 0x3163, - ilde: 0x02DC, - iluyhebrew: 0x05AC, - imacron: 0x012B, - imacroncyrillic: 0x04E3, - imageorapproximatelyequal: 0x2253, - imatragurmukhi: 0x0A3F, - imonospace: 0xFF49, - increment: 0x2206, - infinity: 0x221E, - iniarmenian: 0x056B, - integral: 0x222B, - integralbottom: 0x2321, - integralbt: 0x2321, - integralex: 0xF8F5, - integraltop: 0x2320, - integraltp: 0x2320, - intersection: 0x2229, - intisquare: 0x3305, - invbullet: 0x25D8, - invcircle: 0x25D9, - invsmileface: 0x263B, - iocyrillic: 0x0451, - iogonek: 0x012F, - iota: 0x03B9, - iotadieresis: 0x03CA, - iotadieresistonos: 0x0390, - iotalatin: 0x0269, - iotatonos: 0x03AF, - iparen: 0x24A4, - irigurmukhi: 0x0A72, - ismallhiragana: 0x3043, - ismallkatakana: 0x30A3, - ismallkatakanahalfwidth: 0xFF68, - issharbengali: 0x09FA, - istroke: 0x0268, - isuperior: 0xF6ED, - iterationhiragana: 0x309D, - iterationkatakana: 0x30FD, - itilde: 0x0129, - itildebelow: 0x1E2D, - iubopomofo: 0x3129, - iucyrillic: 0x044E, - ivowelsignbengali: 0x09BF, - ivowelsigndeva: 0x093F, - ivowelsigngujarati: 0x0ABF, - izhitsacyrillic: 0x0475, - izhitsadblgravecyrillic: 0x0477, - j: 0x006A, - jaarmenian: 0x0571, - jabengali: 0x099C, - jadeva: 0x091C, - jagujarati: 0x0A9C, - jagurmukhi: 0x0A1C, - jbopomofo: 0x3110, - jcaron: 0x01F0, - jcircle: 0x24D9, - jcircumflex: 0x0135, - jcrossedtail: 0x029D, - jdotlessstroke: 0x025F, - jecyrillic: 0x0458, - jeemarabic: 0x062C, - jeemfinalarabic: 0xFE9E, - jeeminitialarabic: 0xFE9F, - jeemmedialarabic: 0xFEA0, - jeharabic: 0x0698, - jehfinalarabic: 0xFB8B, - jhabengali: 0x099D, - jhadeva: 0x091D, - jhagujarati: 0x0A9D, - jhagurmukhi: 0x0A1D, - jheharmenian: 0x057B, - jis: 0x3004, - jmonospace: 0xFF4A, - jparen: 0x24A5, - jsuperior: 0x02B2, - k: 0x006B, - kabashkircyrillic: 0x04A1, - kabengali: 0x0995, - kacute: 0x1E31, - kacyrillic: 0x043A, - kadescendercyrillic: 0x049B, - kadeva: 0x0915, - kaf: 0x05DB, - kafarabic: 0x0643, - kafdagesh: 0xFB3B, - kafdageshhebrew: 0xFB3B, - kaffinalarabic: 0xFEDA, - kafhebrew: 0x05DB, - kafinitialarabic: 0xFEDB, - kafmedialarabic: 0xFEDC, - kafrafehebrew: 0xFB4D, - kagujarati: 0x0A95, - kagurmukhi: 0x0A15, - kahiragana: 0x304B, - kahookcyrillic: 0x04C4, - kakatakana: 0x30AB, - kakatakanahalfwidth: 0xFF76, - kappa: 0x03BA, - kappasymbolgreek: 0x03F0, - kapyeounmieumkorean: 0x3171, - kapyeounphieuphkorean: 0x3184, - kapyeounpieupkorean: 0x3178, - kapyeounssangpieupkorean: 0x3179, - karoriisquare: 0x330D, - kashidaautoarabic: 0x0640, - kashidaautonosidebearingarabic: 0x0640, - kasmallkatakana: 0x30F5, - kasquare: 0x3384, - kasraarabic: 0x0650, - kasratanarabic: 0x064D, - kastrokecyrillic: 0x049F, - katahiraprolongmarkhalfwidth: 0xFF70, - kaverticalstrokecyrillic: 0x049D, - kbopomofo: 0x310E, - kcalsquare: 0x3389, - kcaron: 0x01E9, - kcedilla: 0x0137, - kcircle: 0x24DA, - kcommaaccent: 0x0137, - kdotbelow: 0x1E33, - keharmenian: 0x0584, - kehiragana: 0x3051, - kekatakana: 0x30B1, - kekatakanahalfwidth: 0xFF79, - kenarmenian: 0x056F, - kesmallkatakana: 0x30F6, - kgreenlandic: 0x0138, - khabengali: 0x0996, - khacyrillic: 0x0445, - khadeva: 0x0916, - khagujarati: 0x0A96, - khagurmukhi: 0x0A16, - khaharabic: 0x062E, - khahfinalarabic: 0xFEA6, - khahinitialarabic: 0xFEA7, - khahmedialarabic: 0xFEA8, - kheicoptic: 0x03E7, - khhadeva: 0x0959, - khhagurmukhi: 0x0A59, - khieukhacirclekorean: 0x3278, - khieukhaparenkorean: 0x3218, - khieukhcirclekorean: 0x326A, - khieukhkorean: 0x314B, - khieukhparenkorean: 0x320A, - khokhaithai: 0x0E02, - khokhonthai: 0x0E05, - khokhuatthai: 0x0E03, - khokhwaithai: 0x0E04, - khomutthai: 0x0E5B, - khook: 0x0199, - khorakhangthai: 0x0E06, - khzsquare: 0x3391, - kihiragana: 0x304D, - kikatakana: 0x30AD, - kikatakanahalfwidth: 0xFF77, - kiroguramusquare: 0x3315, - kiromeetorusquare: 0x3316, - kirosquare: 0x3314, - kiyeokacirclekorean: 0x326E, - kiyeokaparenkorean: 0x320E, - kiyeokcirclekorean: 0x3260, - kiyeokkorean: 0x3131, - kiyeokparenkorean: 0x3200, - kiyeoksioskorean: 0x3133, - kjecyrillic: 0x045C, - klinebelow: 0x1E35, - klsquare: 0x3398, - kmcubedsquare: 0x33A6, - kmonospace: 0xFF4B, - kmsquaredsquare: 0x33A2, - kohiragana: 0x3053, - kohmsquare: 0x33C0, - kokaithai: 0x0E01, - kokatakana: 0x30B3, - kokatakanahalfwidth: 0xFF7A, - kooposquare: 0x331E, - koppacyrillic: 0x0481, - koreanstandardsymbol: 0x327F, - koroniscmb: 0x0343, - kparen: 0x24A6, - kpasquare: 0x33AA, - ksicyrillic: 0x046F, - ktsquare: 0x33CF, - kturned: 0x029E, - kuhiragana: 0x304F, - kukatakana: 0x30AF, - kukatakanahalfwidth: 0xFF78, - kvsquare: 0x33B8, - kwsquare: 0x33BE, - l: 0x006C, - labengali: 0x09B2, - lacute: 0x013A, - ladeva: 0x0932, - lagujarati: 0x0AB2, - lagurmukhi: 0x0A32, - lakkhangyaothai: 0x0E45, - lamaleffinalarabic: 0xFEFC, - lamalefhamzaabovefinalarabic: 0xFEF8, - lamalefhamzaaboveisolatedarabic: 0xFEF7, - lamalefhamzabelowfinalarabic: 0xFEFA, - lamalefhamzabelowisolatedarabic: 0xFEF9, - lamalefisolatedarabic: 0xFEFB, - lamalefmaddaabovefinalarabic: 0xFEF6, - lamalefmaddaaboveisolatedarabic: 0xFEF5, - lamarabic: 0x0644, - lambda: 0x03BB, - lambdastroke: 0x019B, - lamed: 0x05DC, - lameddagesh: 0xFB3C, - lameddageshhebrew: 0xFB3C, - lamedhebrew: 0x05DC, - lamfinalarabic: 0xFEDE, - lamhahinitialarabic: 0xFCCA, - laminitialarabic: 0xFEDF, - lamjeeminitialarabic: 0xFCC9, - lamkhahinitialarabic: 0xFCCB, - lamlamhehisolatedarabic: 0xFDF2, - lammedialarabic: 0xFEE0, - lammeemhahinitialarabic: 0xFD88, - lammeeminitialarabic: 0xFCCC, - largecircle: 0x25EF, - lbar: 0x019A, - lbelt: 0x026C, - lbopomofo: 0x310C, - lcaron: 0x013E, - lcedilla: 0x013C, - lcircle: 0x24DB, - lcircumflexbelow: 0x1E3D, - lcommaaccent: 0x013C, - ldot: 0x0140, - ldotaccent: 0x0140, - ldotbelow: 0x1E37, - ldotbelowmacron: 0x1E39, - leftangleabovecmb: 0x031A, - lefttackbelowcmb: 0x0318, - less: 0x003C, - lessequal: 0x2264, - lessequalorgreater: 0x22DA, - lessmonospace: 0xFF1C, - lessorequivalent: 0x2272, - lessorgreater: 0x2276, - lessoverequal: 0x2266, - lesssmall: 0xFE64, - lezh: 0x026E, - lfblock: 0x258C, - lhookretroflex: 0x026D, - lira: 0x20A4, - liwnarmenian: 0x056C, - lj: 0x01C9, - ljecyrillic: 0x0459, - ll: 0xF6C0, - lladeva: 0x0933, - llagujarati: 0x0AB3, - llinebelow: 0x1E3B, - llladeva: 0x0934, - llvocalicbengali: 0x09E1, - llvocalicdeva: 0x0961, - llvocalicvowelsignbengali: 0x09E3, - llvocalicvowelsigndeva: 0x0963, - lmiddletilde: 0x026B, - lmonospace: 0xFF4C, - lmsquare: 0x33D0, - lochulathai: 0x0E2C, - logicaland: 0x2227, - logicalnot: 0x00AC, - logicalnotreversed: 0x2310, - logicalor: 0x2228, - lolingthai: 0x0E25, - longs: 0x017F, - lowlinecenterline: 0xFE4E, - lowlinecmb: 0x0332, - lowlinedashed: 0xFE4D, - lozenge: 0x25CA, - lparen: 0x24A7, - lslash: 0x0142, - lsquare: 0x2113, - lsuperior: 0xF6EE, - ltshade: 0x2591, - luthai: 0x0E26, - lvocalicbengali: 0x098C, - lvocalicdeva: 0x090C, - lvocalicvowelsignbengali: 0x09E2, - lvocalicvowelsigndeva: 0x0962, - lxsquare: 0x33D3, - m: 0x006D, - mabengali: 0x09AE, - macron: 0x00AF, - macronbelowcmb: 0x0331, - macroncmb: 0x0304, - macronlowmod: 0x02CD, - macronmonospace: 0xFFE3, - macute: 0x1E3F, - madeva: 0x092E, - magujarati: 0x0AAE, - magurmukhi: 0x0A2E, - mahapakhhebrew: 0x05A4, - mahapakhlefthebrew: 0x05A4, - mahiragana: 0x307E, - maichattawalowleftthai: 0xF895, - maichattawalowrightthai: 0xF894, - maichattawathai: 0x0E4B, - maichattawaupperleftthai: 0xF893, - maieklowleftthai: 0xF88C, - maieklowrightthai: 0xF88B, - maiekthai: 0x0E48, - maiekupperleftthai: 0xF88A, - maihanakatleftthai: 0xF884, - maihanakatthai: 0x0E31, - maitaikhuleftthai: 0xF889, - maitaikhuthai: 0x0E47, - maitholowleftthai: 0xF88F, - maitholowrightthai: 0xF88E, - maithothai: 0x0E49, - maithoupperleftthai: 0xF88D, - maitrilowleftthai: 0xF892, - maitrilowrightthai: 0xF891, - maitrithai: 0x0E4A, - maitriupperleftthai: 0xF890, - maiyamokthai: 0x0E46, - makatakana: 0x30DE, - makatakanahalfwidth: 0xFF8F, - male: 0x2642, - mansyonsquare: 0x3347, - maqafhebrew: 0x05BE, - mars: 0x2642, - masoracirclehebrew: 0x05AF, - masquare: 0x3383, - mbopomofo: 0x3107, - mbsquare: 0x33D4, - mcircle: 0x24DC, - mcubedsquare: 0x33A5, - mdotaccent: 0x1E41, - mdotbelow: 0x1E43, - meemarabic: 0x0645, - meemfinalarabic: 0xFEE2, - meeminitialarabic: 0xFEE3, - meemmedialarabic: 0xFEE4, - meemmeeminitialarabic: 0xFCD1, - meemmeemisolatedarabic: 0xFC48, - meetorusquare: 0x334D, - mehiragana: 0x3081, - meizierasquare: 0x337E, - mekatakana: 0x30E1, - mekatakanahalfwidth: 0xFF92, - mem: 0x05DE, - memdagesh: 0xFB3E, - memdageshhebrew: 0xFB3E, - memhebrew: 0x05DE, - menarmenian: 0x0574, - merkhahebrew: 0x05A5, - merkhakefulahebrew: 0x05A6, - merkhakefulalefthebrew: 0x05A6, - merkhalefthebrew: 0x05A5, - mhook: 0x0271, - mhzsquare: 0x3392, - middledotkatakanahalfwidth: 0xFF65, - middot: 0x00B7, - mieumacirclekorean: 0x3272, - mieumaparenkorean: 0x3212, - mieumcirclekorean: 0x3264, - mieumkorean: 0x3141, - mieumpansioskorean: 0x3170, - mieumparenkorean: 0x3204, - mieumpieupkorean: 0x316E, - mieumsioskorean: 0x316F, - mihiragana: 0x307F, - mikatakana: 0x30DF, - mikatakanahalfwidth: 0xFF90, - minus: 0x2212, - minusbelowcmb: 0x0320, - minuscircle: 0x2296, - minusmod: 0x02D7, - minusplus: 0x2213, - minute: 0x2032, - miribaarusquare: 0x334A, - mirisquare: 0x3349, - mlonglegturned: 0x0270, - mlsquare: 0x3396, - mmcubedsquare: 0x33A3, - mmonospace: 0xFF4D, - mmsquaredsquare: 0x339F, - mohiragana: 0x3082, - mohmsquare: 0x33C1, - mokatakana: 0x30E2, - mokatakanahalfwidth: 0xFF93, - molsquare: 0x33D6, - momathai: 0x0E21, - moverssquare: 0x33A7, - moverssquaredsquare: 0x33A8, - mparen: 0x24A8, - mpasquare: 0x33AB, - mssquare: 0x33B3, - msuperior: 0xF6EF, - mturned: 0x026F, - mu: 0x00B5, - mu1: 0x00B5, - muasquare: 0x3382, - muchgreater: 0x226B, - muchless: 0x226A, - mufsquare: 0x338C, - mugreek: 0x03BC, - mugsquare: 0x338D, - muhiragana: 0x3080, - mukatakana: 0x30E0, - mukatakanahalfwidth: 0xFF91, - mulsquare: 0x3395, - multiply: 0x00D7, - mumsquare: 0x339B, - munahhebrew: 0x05A3, - munahlefthebrew: 0x05A3, - musicalnote: 0x266A, - musicalnotedbl: 0x266B, - musicflatsign: 0x266D, - musicsharpsign: 0x266F, - mussquare: 0x33B2, - muvsquare: 0x33B6, - muwsquare: 0x33BC, - mvmegasquare: 0x33B9, - mvsquare: 0x33B7, - mwmegasquare: 0x33BF, - mwsquare: 0x33BD, - n: 0x006E, - nabengali: 0x09A8, - nabla: 0x2207, - nacute: 0x0144, - nadeva: 0x0928, - nagujarati: 0x0AA8, - nagurmukhi: 0x0A28, - nahiragana: 0x306A, - nakatakana: 0x30CA, - nakatakanahalfwidth: 0xFF85, - napostrophe: 0x0149, - nasquare: 0x3381, - nbopomofo: 0x310B, - nbspace: 0x00A0, - ncaron: 0x0148, - ncedilla: 0x0146, - ncircle: 0x24DD, - ncircumflexbelow: 0x1E4B, - ncommaaccent: 0x0146, - ndotaccent: 0x1E45, - ndotbelow: 0x1E47, - nehiragana: 0x306D, - nekatakana: 0x30CD, - nekatakanahalfwidth: 0xFF88, - newsheqelsign: 0x20AA, - nfsquare: 0x338B, - ngabengali: 0x0999, - ngadeva: 0x0919, - ngagujarati: 0x0A99, - ngagurmukhi: 0x0A19, - ngonguthai: 0x0E07, - nhiragana: 0x3093, - nhookleft: 0x0272, - nhookretroflex: 0x0273, - nieunacirclekorean: 0x326F, - nieunaparenkorean: 0x320F, - nieuncieuckorean: 0x3135, - nieuncirclekorean: 0x3261, - nieunhieuhkorean: 0x3136, - nieunkorean: 0x3134, - nieunpansioskorean: 0x3168, - nieunparenkorean: 0x3201, - nieunsioskorean: 0x3167, - nieuntikeutkorean: 0x3166, - nihiragana: 0x306B, - nikatakana: 0x30CB, - nikatakanahalfwidth: 0xFF86, - nikhahitleftthai: 0xF899, - nikhahitthai: 0x0E4D, - nine: 0x0039, - ninearabic: 0x0669, - ninebengali: 0x09EF, - ninecircle: 0x2468, - ninecircleinversesansserif: 0x2792, - ninedeva: 0x096F, - ninegujarati: 0x0AEF, - ninegurmukhi: 0x0A6F, - ninehackarabic: 0x0669, - ninehangzhou: 0x3029, - nineideographicparen: 0x3228, - nineinferior: 0x2089, - ninemonospace: 0xFF19, - nineoldstyle: 0xF739, - nineparen: 0x247C, - nineperiod: 0x2490, - ninepersian: 0x06F9, - nineroman: 0x2178, - ninesuperior: 0x2079, - nineteencircle: 0x2472, - nineteenparen: 0x2486, - nineteenperiod: 0x249A, - ninethai: 0x0E59, - nj: 0x01CC, - njecyrillic: 0x045A, - nkatakana: 0x30F3, - nkatakanahalfwidth: 0xFF9D, - nlegrightlong: 0x019E, - nlinebelow: 0x1E49, - nmonospace: 0xFF4E, - nmsquare: 0x339A, - nnabengali: 0x09A3, - nnadeva: 0x0923, - nnagujarati: 0x0AA3, - nnagurmukhi: 0x0A23, - nnnadeva: 0x0929, - nohiragana: 0x306E, - nokatakana: 0x30CE, - nokatakanahalfwidth: 0xFF89, - nonbreakingspace: 0x00A0, - nonenthai: 0x0E13, - nonuthai: 0x0E19, - noonarabic: 0x0646, - noonfinalarabic: 0xFEE6, - noonghunnaarabic: 0x06BA, - noonghunnafinalarabic: 0xFB9F, - nooninitialarabic: 0xFEE7, - noonjeeminitialarabic: 0xFCD2, - noonjeemisolatedarabic: 0xFC4B, - noonmedialarabic: 0xFEE8, - noonmeeminitialarabic: 0xFCD5, - noonmeemisolatedarabic: 0xFC4E, - noonnoonfinalarabic: 0xFC8D, - notcontains: 0x220C, - notelement: 0x2209, - notelementof: 0x2209, - notequal: 0x2260, - notgreater: 0x226F, - notgreaternorequal: 0x2271, - notgreaternorless: 0x2279, - notidentical: 0x2262, - notless: 0x226E, - notlessnorequal: 0x2270, - notparallel: 0x2226, - notprecedes: 0x2280, - notsubset: 0x2284, - notsucceeds: 0x2281, - notsuperset: 0x2285, - nowarmenian: 0x0576, - nparen: 0x24A9, - nssquare: 0x33B1, - nsuperior: 0x207F, - ntilde: 0x00F1, - nu: 0x03BD, - nuhiragana: 0x306C, - nukatakana: 0x30CC, - nukatakanahalfwidth: 0xFF87, - nuktabengali: 0x09BC, - nuktadeva: 0x093C, - nuktagujarati: 0x0ABC, - nuktagurmukhi: 0x0A3C, - numbersign: 0x0023, - numbersignmonospace: 0xFF03, - numbersignsmall: 0xFE5F, - numeralsigngreek: 0x0374, - numeralsignlowergreek: 0x0375, - numero: 0x2116, - nun: 0x05E0, - nundagesh: 0xFB40, - nundageshhebrew: 0xFB40, - nunhebrew: 0x05E0, - nvsquare: 0x33B5, - nwsquare: 0x33BB, - nyabengali: 0x099E, - nyadeva: 0x091E, - nyagujarati: 0x0A9E, - nyagurmukhi: 0x0A1E, - o: 0x006F, - oacute: 0x00F3, - oangthai: 0x0E2D, - obarred: 0x0275, - obarredcyrillic: 0x04E9, - obarreddieresiscyrillic: 0x04EB, - obengali: 0x0993, - obopomofo: 0x311B, - obreve: 0x014F, - ocandradeva: 0x0911, - ocandragujarati: 0x0A91, - ocandravowelsigndeva: 0x0949, - ocandravowelsigngujarati: 0x0AC9, - ocaron: 0x01D2, - ocircle: 0x24DE, - ocircumflex: 0x00F4, - ocircumflexacute: 0x1ED1, - ocircumflexdotbelow: 0x1ED9, - ocircumflexgrave: 0x1ED3, - ocircumflexhookabove: 0x1ED5, - ocircumflextilde: 0x1ED7, - ocyrillic: 0x043E, - odblacute: 0x0151, - odblgrave: 0x020D, - odeva: 0x0913, - odieresis: 0x00F6, - odieresiscyrillic: 0x04E7, - odotbelow: 0x1ECD, - oe: 0x0153, - oekorean: 0x315A, - ogonek: 0x02DB, - ogonekcmb: 0x0328, - ograve: 0x00F2, - ogujarati: 0x0A93, - oharmenian: 0x0585, - ohiragana: 0x304A, - ohookabove: 0x1ECF, - ohorn: 0x01A1, - ohornacute: 0x1EDB, - ohorndotbelow: 0x1EE3, - ohorngrave: 0x1EDD, - ohornhookabove: 0x1EDF, - ohorntilde: 0x1EE1, - ohungarumlaut: 0x0151, - oi: 0x01A3, - oinvertedbreve: 0x020F, - okatakana: 0x30AA, - okatakanahalfwidth: 0xFF75, - okorean: 0x3157, - olehebrew: 0x05AB, - omacron: 0x014D, - omacronacute: 0x1E53, - omacrongrave: 0x1E51, - omdeva: 0x0950, - omega: 0x03C9, - omega1: 0x03D6, - omegacyrillic: 0x0461, - omegalatinclosed: 0x0277, - omegaroundcyrillic: 0x047B, - omegatitlocyrillic: 0x047D, - omegatonos: 0x03CE, - omgujarati: 0x0AD0, - omicron: 0x03BF, - omicrontonos: 0x03CC, - omonospace: 0xFF4F, - one: 0x0031, - onearabic: 0x0661, - onebengali: 0x09E7, - onecircle: 0x2460, - onecircleinversesansserif: 0x278A, - onedeva: 0x0967, - onedotenleader: 0x2024, - oneeighth: 0x215B, - onefitted: 0xF6DC, - onegujarati: 0x0AE7, - onegurmukhi: 0x0A67, - onehackarabic: 0x0661, - onehalf: 0x00BD, - onehangzhou: 0x3021, - oneideographicparen: 0x3220, - oneinferior: 0x2081, - onemonospace: 0xFF11, - onenumeratorbengali: 0x09F4, - oneoldstyle: 0xF731, - oneparen: 0x2474, - oneperiod: 0x2488, - onepersian: 0x06F1, - onequarter: 0x00BC, - oneroman: 0x2170, - onesuperior: 0x00B9, - onethai: 0x0E51, - onethird: 0x2153, - oogonek: 0x01EB, - oogonekmacron: 0x01ED, - oogurmukhi: 0x0A13, - oomatragurmukhi: 0x0A4B, - oopen: 0x0254, - oparen: 0x24AA, - openbullet: 0x25E6, - option: 0x2325, - ordfeminine: 0x00AA, - ordmasculine: 0x00BA, - orthogonal: 0x221F, - oshortdeva: 0x0912, - oshortvowelsigndeva: 0x094A, - oslash: 0x00F8, - oslashacute: 0x01FF, - osmallhiragana: 0x3049, - osmallkatakana: 0x30A9, - osmallkatakanahalfwidth: 0xFF6B, - ostrokeacute: 0x01FF, - osuperior: 0xF6F0, - otcyrillic: 0x047F, - otilde: 0x00F5, - otildeacute: 0x1E4D, - otildedieresis: 0x1E4F, - oubopomofo: 0x3121, - overline: 0x203E, - overlinecenterline: 0xFE4A, - overlinecmb: 0x0305, - overlinedashed: 0xFE49, - overlinedblwavy: 0xFE4C, - overlinewavy: 0xFE4B, - overscore: 0x00AF, - ovowelsignbengali: 0x09CB, - ovowelsigndeva: 0x094B, - ovowelsigngujarati: 0x0ACB, - p: 0x0070, - paampssquare: 0x3380, - paasentosquare: 0x332B, - pabengali: 0x09AA, - pacute: 0x1E55, - padeva: 0x092A, - pagedown: 0x21DF, - pageup: 0x21DE, - pagujarati: 0x0AAA, - pagurmukhi: 0x0A2A, - pahiragana: 0x3071, - paiyannoithai: 0x0E2F, - pakatakana: 0x30D1, - palatalizationcyrilliccmb: 0x0484, - palochkacyrillic: 0x04C0, - pansioskorean: 0x317F, - paragraph: 0x00B6, - parallel: 0x2225, - parenleft: 0x0028, - parenleftaltonearabic: 0xFD3E, - parenleftbt: 0xF8ED, - parenleftex: 0xF8EC, - parenleftinferior: 0x208D, - parenleftmonospace: 0xFF08, - parenleftsmall: 0xFE59, - parenleftsuperior: 0x207D, - parenlefttp: 0xF8EB, - parenleftvertical: 0xFE35, - parenright: 0x0029, - parenrightaltonearabic: 0xFD3F, - parenrightbt: 0xF8F8, - parenrightex: 0xF8F7, - parenrightinferior: 0x208E, - parenrightmonospace: 0xFF09, - parenrightsmall: 0xFE5A, - parenrightsuperior: 0x207E, - parenrighttp: 0xF8F6, - parenrightvertical: 0xFE36, - partialdiff: 0x2202, - paseqhebrew: 0x05C0, - pashtahebrew: 0x0599, - pasquare: 0x33A9, - patah: 0x05B7, - patah11: 0x05B7, - patah1d: 0x05B7, - patah2a: 0x05B7, - patahhebrew: 0x05B7, - patahnarrowhebrew: 0x05B7, - patahquarterhebrew: 0x05B7, - patahwidehebrew: 0x05B7, - pazerhebrew: 0x05A1, - pbopomofo: 0x3106, - pcircle: 0x24DF, - pdotaccent: 0x1E57, - pe: 0x05E4, - pecyrillic: 0x043F, - pedagesh: 0xFB44, - pedageshhebrew: 0xFB44, - peezisquare: 0x333B, - pefinaldageshhebrew: 0xFB43, - peharabic: 0x067E, - peharmenian: 0x057A, - pehebrew: 0x05E4, - pehfinalarabic: 0xFB57, - pehinitialarabic: 0xFB58, - pehiragana: 0x307A, - pehmedialarabic: 0xFB59, - pekatakana: 0x30DA, - pemiddlehookcyrillic: 0x04A7, - perafehebrew: 0xFB4E, - percent: 0x0025, - percentarabic: 0x066A, - percentmonospace: 0xFF05, - percentsmall: 0xFE6A, - period: 0x002E, - periodarmenian: 0x0589, - periodcentered: 0x00B7, - periodhalfwidth: 0xFF61, - periodinferior: 0xF6E7, - periodmonospace: 0xFF0E, - periodsmall: 0xFE52, - periodsuperior: 0xF6E8, - perispomenigreekcmb: 0x0342, - perpendicular: 0x22A5, - perthousand: 0x2030, - peseta: 0x20A7, - pfsquare: 0x338A, - phabengali: 0x09AB, - phadeva: 0x092B, - phagujarati: 0x0AAB, - phagurmukhi: 0x0A2B, - phi: 0x03C6, - phi1: 0x03D5, - phieuphacirclekorean: 0x327A, - phieuphaparenkorean: 0x321A, - phieuphcirclekorean: 0x326C, - phieuphkorean: 0x314D, - phieuphparenkorean: 0x320C, - philatin: 0x0278, - phinthuthai: 0x0E3A, - phisymbolgreek: 0x03D5, - phook: 0x01A5, - phophanthai: 0x0E1E, - phophungthai: 0x0E1C, - phosamphaothai: 0x0E20, - pi: 0x03C0, - pieupacirclekorean: 0x3273, - pieupaparenkorean: 0x3213, - pieupcieuckorean: 0x3176, - pieupcirclekorean: 0x3265, - pieupkiyeokkorean: 0x3172, - pieupkorean: 0x3142, - pieupparenkorean: 0x3205, - pieupsioskiyeokkorean: 0x3174, - pieupsioskorean: 0x3144, - pieupsiostikeutkorean: 0x3175, - pieupthieuthkorean: 0x3177, - pieuptikeutkorean: 0x3173, - pihiragana: 0x3074, - pikatakana: 0x30D4, - pisymbolgreek: 0x03D6, - piwrarmenian: 0x0583, - plus: 0x002B, - plusbelowcmb: 0x031F, - pluscircle: 0x2295, - plusminus: 0x00B1, - plusmod: 0x02D6, - plusmonospace: 0xFF0B, - plussmall: 0xFE62, - plussuperior: 0x207A, - pmonospace: 0xFF50, - pmsquare: 0x33D8, - pohiragana: 0x307D, - pointingindexdownwhite: 0x261F, - pointingindexleftwhite: 0x261C, - pointingindexrightwhite: 0x261E, - pointingindexupwhite: 0x261D, - pokatakana: 0x30DD, - poplathai: 0x0E1B, - postalmark: 0x3012, - postalmarkface: 0x3020, - pparen: 0x24AB, - precedes: 0x227A, - prescription: 0x211E, - primemod: 0x02B9, - primereversed: 0x2035, - product: 0x220F, - projective: 0x2305, - prolongedkana: 0x30FC, - propellor: 0x2318, - propersubset: 0x2282, - propersuperset: 0x2283, - proportion: 0x2237, - proportional: 0x221D, - psi: 0x03C8, - psicyrillic: 0x0471, - psilipneumatacyrilliccmb: 0x0486, - pssquare: 0x33B0, - puhiragana: 0x3077, - pukatakana: 0x30D7, - pvsquare: 0x33B4, - pwsquare: 0x33BA, - q: 0x0071, - qadeva: 0x0958, - qadmahebrew: 0x05A8, - qafarabic: 0x0642, - qaffinalarabic: 0xFED6, - qafinitialarabic: 0xFED7, - qafmedialarabic: 0xFED8, - qamats: 0x05B8, - qamats10: 0x05B8, - qamats1a: 0x05B8, - qamats1c: 0x05B8, - qamats27: 0x05B8, - qamats29: 0x05B8, - qamats33: 0x05B8, - qamatsde: 0x05B8, - qamatshebrew: 0x05B8, - qamatsnarrowhebrew: 0x05B8, - qamatsqatanhebrew: 0x05B8, - qamatsqatannarrowhebrew: 0x05B8, - qamatsqatanquarterhebrew: 0x05B8, - qamatsqatanwidehebrew: 0x05B8, - qamatsquarterhebrew: 0x05B8, - qamatswidehebrew: 0x05B8, - qarneyparahebrew: 0x059F, - qbopomofo: 0x3111, - qcircle: 0x24E0, - qhook: 0x02A0, - qmonospace: 0xFF51, - qof: 0x05E7, - qofdagesh: 0xFB47, - qofdageshhebrew: 0xFB47, - qofhebrew: 0x05E7, - qparen: 0x24AC, - quarternote: 0x2669, - qubuts: 0x05BB, - qubuts18: 0x05BB, - qubuts25: 0x05BB, - qubuts31: 0x05BB, - qubutshebrew: 0x05BB, - qubutsnarrowhebrew: 0x05BB, - qubutsquarterhebrew: 0x05BB, - qubutswidehebrew: 0x05BB, - question: 0x003F, - questionarabic: 0x061F, - questionarmenian: 0x055E, - questiondown: 0x00BF, - questiondownsmall: 0xF7BF, - questiongreek: 0x037E, - questionmonospace: 0xFF1F, - questionsmall: 0xF73F, - quotedbl: 0x0022, - quotedblbase: 0x201E, - quotedblleft: 0x201C, - quotedblmonospace: 0xFF02, - quotedblprime: 0x301E, - quotedblprimereversed: 0x301D, - quotedblright: 0x201D, - quoteleft: 0x2018, - quoteleftreversed: 0x201B, - quotereversed: 0x201B, - quoteright: 0x2019, - quoterightn: 0x0149, - quotesinglbase: 0x201A, - quotesingle: 0x0027, - quotesinglemonospace: 0xFF07, - r: 0x0072, - raarmenian: 0x057C, - rabengali: 0x09B0, - racute: 0x0155, - radeva: 0x0930, - radical: 0x221A, - radicalex: 0xF8E5, - radoverssquare: 0x33AE, - radoverssquaredsquare: 0x33AF, - radsquare: 0x33AD, - rafe: 0x05BF, - rafehebrew: 0x05BF, - ragujarati: 0x0AB0, - ragurmukhi: 0x0A30, - rahiragana: 0x3089, - rakatakana: 0x30E9, - rakatakanahalfwidth: 0xFF97, - ralowerdiagonalbengali: 0x09F1, - ramiddlediagonalbengali: 0x09F0, - ramshorn: 0x0264, - ratio: 0x2236, - rbopomofo: 0x3116, - rcaron: 0x0159, - rcedilla: 0x0157, - rcircle: 0x24E1, - rcommaaccent: 0x0157, - rdblgrave: 0x0211, - rdotaccent: 0x1E59, - rdotbelow: 0x1E5B, - rdotbelowmacron: 0x1E5D, - referencemark: 0x203B, - reflexsubset: 0x2286, - reflexsuperset: 0x2287, - registered: 0x00AE, - registersans: 0xF8E8, - registerserif: 0xF6DA, - reharabic: 0x0631, - reharmenian: 0x0580, - rehfinalarabic: 0xFEAE, - rehiragana: 0x308C, - rekatakana: 0x30EC, - rekatakanahalfwidth: 0xFF9A, - resh: 0x05E8, - reshdageshhebrew: 0xFB48, - reshhebrew: 0x05E8, - reversedtilde: 0x223D, - reviahebrew: 0x0597, - reviamugrashhebrew: 0x0597, - revlogicalnot: 0x2310, - rfishhook: 0x027E, - rfishhookreversed: 0x027F, - rhabengali: 0x09DD, - rhadeva: 0x095D, - rho: 0x03C1, - rhook: 0x027D, - rhookturned: 0x027B, - rhookturnedsuperior: 0x02B5, - rhosymbolgreek: 0x03F1, - rhotichookmod: 0x02DE, - rieulacirclekorean: 0x3271, - rieulaparenkorean: 0x3211, - rieulcirclekorean: 0x3263, - rieulhieuhkorean: 0x3140, - rieulkiyeokkorean: 0x313A, - rieulkiyeoksioskorean: 0x3169, - rieulkorean: 0x3139, - rieulmieumkorean: 0x313B, - rieulpansioskorean: 0x316C, - rieulparenkorean: 0x3203, - rieulphieuphkorean: 0x313F, - rieulpieupkorean: 0x313C, - rieulpieupsioskorean: 0x316B, - rieulsioskorean: 0x313D, - rieulthieuthkorean: 0x313E, - rieultikeutkorean: 0x316A, - rieulyeorinhieuhkorean: 0x316D, - rightangle: 0x221F, - righttackbelowcmb: 0x0319, - righttriangle: 0x22BF, - rihiragana: 0x308A, - rikatakana: 0x30EA, - rikatakanahalfwidth: 0xFF98, - ring: 0x02DA, - ringbelowcmb: 0x0325, - ringcmb: 0x030A, - ringhalfleft: 0x02BF, - ringhalfleftarmenian: 0x0559, - ringhalfleftbelowcmb: 0x031C, - ringhalfleftcentered: 0x02D3, - ringhalfright: 0x02BE, - ringhalfrightbelowcmb: 0x0339, - ringhalfrightcentered: 0x02D2, - rinvertedbreve: 0x0213, - rittorusquare: 0x3351, - rlinebelow: 0x1E5F, - rlongleg: 0x027C, - rlonglegturned: 0x027A, - rmonospace: 0xFF52, - rohiragana: 0x308D, - rokatakana: 0x30ED, - rokatakanahalfwidth: 0xFF9B, - roruathai: 0x0E23, - rparen: 0x24AD, - rrabengali: 0x09DC, - rradeva: 0x0931, - rragurmukhi: 0x0A5C, - rreharabic: 0x0691, - rrehfinalarabic: 0xFB8D, - rrvocalicbengali: 0x09E0, - rrvocalicdeva: 0x0960, - rrvocalicgujarati: 0x0AE0, - rrvocalicvowelsignbengali: 0x09C4, - rrvocalicvowelsigndeva: 0x0944, - rrvocalicvowelsigngujarati: 0x0AC4, - rsuperior: 0xF6F1, - rtblock: 0x2590, - rturned: 0x0279, - rturnedsuperior: 0x02B4, - ruhiragana: 0x308B, - rukatakana: 0x30EB, - rukatakanahalfwidth: 0xFF99, - rupeemarkbengali: 0x09F2, - rupeesignbengali: 0x09F3, - rupiah: 0xF6DD, - ruthai: 0x0E24, - rvocalicbengali: 0x098B, - rvocalicdeva: 0x090B, - rvocalicgujarati: 0x0A8B, - rvocalicvowelsignbengali: 0x09C3, - rvocalicvowelsigndeva: 0x0943, - rvocalicvowelsigngujarati: 0x0AC3, - s: 0x0073, - sabengali: 0x09B8, - sacute: 0x015B, - sacutedotaccent: 0x1E65, - sadarabic: 0x0635, - sadeva: 0x0938, - sadfinalarabic: 0xFEBA, - sadinitialarabic: 0xFEBB, - sadmedialarabic: 0xFEBC, - sagujarati: 0x0AB8, - sagurmukhi: 0x0A38, - sahiragana: 0x3055, - sakatakana: 0x30B5, - sakatakanahalfwidth: 0xFF7B, - sallallahoualayhewasallamarabic: 0xFDFA, - samekh: 0x05E1, - samekhdagesh: 0xFB41, - samekhdageshhebrew: 0xFB41, - samekhhebrew: 0x05E1, - saraaathai: 0x0E32, - saraaethai: 0x0E41, - saraaimaimalaithai: 0x0E44, - saraaimaimuanthai: 0x0E43, - saraamthai: 0x0E33, - saraathai: 0x0E30, - saraethai: 0x0E40, - saraiileftthai: 0xF886, - saraiithai: 0x0E35, - saraileftthai: 0xF885, - saraithai: 0x0E34, - saraothai: 0x0E42, - saraueeleftthai: 0xF888, - saraueethai: 0x0E37, - saraueleftthai: 0xF887, - sarauethai: 0x0E36, - sarauthai: 0x0E38, - sarauuthai: 0x0E39, - sbopomofo: 0x3119, - scaron: 0x0161, - scarondotaccent: 0x1E67, - scedilla: 0x015F, - schwa: 0x0259, - schwacyrillic: 0x04D9, - schwadieresiscyrillic: 0x04DB, - schwahook: 0x025A, - scircle: 0x24E2, - scircumflex: 0x015D, - scommaaccent: 0x0219, - sdotaccent: 0x1E61, - sdotbelow: 0x1E63, - sdotbelowdotaccent: 0x1E69, - seagullbelowcmb: 0x033C, - second: 0x2033, - secondtonechinese: 0x02CA, - section: 0x00A7, - seenarabic: 0x0633, - seenfinalarabic: 0xFEB2, - seeninitialarabic: 0xFEB3, - seenmedialarabic: 0xFEB4, - segol: 0x05B6, - segol13: 0x05B6, - segol1f: 0x05B6, - segol2c: 0x05B6, - segolhebrew: 0x05B6, - segolnarrowhebrew: 0x05B6, - segolquarterhebrew: 0x05B6, - segoltahebrew: 0x0592, - segolwidehebrew: 0x05B6, - seharmenian: 0x057D, - sehiragana: 0x305B, - sekatakana: 0x30BB, - sekatakanahalfwidth: 0xFF7E, - semicolon: 0x003B, - semicolonarabic: 0x061B, - semicolonmonospace: 0xFF1B, - semicolonsmall: 0xFE54, - semivoicedmarkkana: 0x309C, - semivoicedmarkkanahalfwidth: 0xFF9F, - sentisquare: 0x3322, - sentosquare: 0x3323, - seven: 0x0037, - sevenarabic: 0x0667, - sevenbengali: 0x09ED, - sevencircle: 0x2466, - sevencircleinversesansserif: 0x2790, - sevendeva: 0x096D, - seveneighths: 0x215E, - sevengujarati: 0x0AED, - sevengurmukhi: 0x0A6D, - sevenhackarabic: 0x0667, - sevenhangzhou: 0x3027, - sevenideographicparen: 0x3226, - seveninferior: 0x2087, - sevenmonospace: 0xFF17, - sevenoldstyle: 0xF737, - sevenparen: 0x247A, - sevenperiod: 0x248E, - sevenpersian: 0x06F7, - sevenroman: 0x2176, - sevensuperior: 0x2077, - seventeencircle: 0x2470, - seventeenparen: 0x2484, - seventeenperiod: 0x2498, - seventhai: 0x0E57, - sfthyphen: 0x00AD, - shaarmenian: 0x0577, - shabengali: 0x09B6, - shacyrillic: 0x0448, - shaddaarabic: 0x0651, - shaddadammaarabic: 0xFC61, - shaddadammatanarabic: 0xFC5E, - shaddafathaarabic: 0xFC60, - shaddakasraarabic: 0xFC62, - shaddakasratanarabic: 0xFC5F, - shade: 0x2592, - shadedark: 0x2593, - shadelight: 0x2591, - shademedium: 0x2592, - shadeva: 0x0936, - shagujarati: 0x0AB6, - shagurmukhi: 0x0A36, - shalshelethebrew: 0x0593, - shbopomofo: 0x3115, - shchacyrillic: 0x0449, - sheenarabic: 0x0634, - sheenfinalarabic: 0xFEB6, - sheeninitialarabic: 0xFEB7, - sheenmedialarabic: 0xFEB8, - sheicoptic: 0x03E3, - sheqel: 0x20AA, - sheqelhebrew: 0x20AA, - sheva: 0x05B0, - sheva115: 0x05B0, - sheva15: 0x05B0, - sheva22: 0x05B0, - sheva2e: 0x05B0, - shevahebrew: 0x05B0, - shevanarrowhebrew: 0x05B0, - shevaquarterhebrew: 0x05B0, - shevawidehebrew: 0x05B0, - shhacyrillic: 0x04BB, - shimacoptic: 0x03ED, - shin: 0x05E9, - shindagesh: 0xFB49, - shindageshhebrew: 0xFB49, - shindageshshindot: 0xFB2C, - shindageshshindothebrew: 0xFB2C, - shindageshsindot: 0xFB2D, - shindageshsindothebrew: 0xFB2D, - shindothebrew: 0x05C1, - shinhebrew: 0x05E9, - shinshindot: 0xFB2A, - shinshindothebrew: 0xFB2A, - shinsindot: 0xFB2B, - shinsindothebrew: 0xFB2B, - shook: 0x0282, - sigma: 0x03C3, - sigma1: 0x03C2, - sigmafinal: 0x03C2, - sigmalunatesymbolgreek: 0x03F2, - sihiragana: 0x3057, - sikatakana: 0x30B7, - sikatakanahalfwidth: 0xFF7C, - siluqhebrew: 0x05BD, - siluqlefthebrew: 0x05BD, - similar: 0x223C, - sindothebrew: 0x05C2, - siosacirclekorean: 0x3274, - siosaparenkorean: 0x3214, - sioscieuckorean: 0x317E, - sioscirclekorean: 0x3266, - sioskiyeokkorean: 0x317A, - sioskorean: 0x3145, - siosnieunkorean: 0x317B, - siosparenkorean: 0x3206, - siospieupkorean: 0x317D, - siostikeutkorean: 0x317C, - six: 0x0036, - sixarabic: 0x0666, - sixbengali: 0x09EC, - sixcircle: 0x2465, - sixcircleinversesansserif: 0x278F, - sixdeva: 0x096C, - sixgujarati: 0x0AEC, - sixgurmukhi: 0x0A6C, - sixhackarabic: 0x0666, - sixhangzhou: 0x3026, - sixideographicparen: 0x3225, - sixinferior: 0x2086, - sixmonospace: 0xFF16, - sixoldstyle: 0xF736, - sixparen: 0x2479, - sixperiod: 0x248D, - sixpersian: 0x06F6, - sixroman: 0x2175, - sixsuperior: 0x2076, - sixteencircle: 0x246F, - sixteencurrencydenominatorbengali: 0x09F9, - sixteenparen: 0x2483, - sixteenperiod: 0x2497, - sixthai: 0x0E56, - slash: 0x002F, - slashmonospace: 0xFF0F, - slong: 0x017F, - slongdotaccent: 0x1E9B, - smileface: 0x263A, - smonospace: 0xFF53, - sofpasuqhebrew: 0x05C3, - softhyphen: 0x00AD, - softsigncyrillic: 0x044C, - sohiragana: 0x305D, - sokatakana: 0x30BD, - sokatakanahalfwidth: 0xFF7F, - soliduslongoverlaycmb: 0x0338, - solidusshortoverlaycmb: 0x0337, - sorusithai: 0x0E29, - sosalathai: 0x0E28, - sosothai: 0x0E0B, - sosuathai: 0x0E2A, - space: 0x0020, - spacehackarabic: 0x0020, - spade: 0x2660, - spadesuitblack: 0x2660, - spadesuitwhite: 0x2664, - sparen: 0x24AE, - squarebelowcmb: 0x033B, - squarecc: 0x33C4, - squarecm: 0x339D, - squarediagonalcrosshatchfill: 0x25A9, - squarehorizontalfill: 0x25A4, - squarekg: 0x338F, - squarekm: 0x339E, - squarekmcapital: 0x33CE, - squareln: 0x33D1, - squarelog: 0x33D2, - squaremg: 0x338E, - squaremil: 0x33D5, - squaremm: 0x339C, - squaremsquared: 0x33A1, - squareorthogonalcrosshatchfill: 0x25A6, - squareupperlefttolowerrightfill: 0x25A7, - squareupperrighttolowerleftfill: 0x25A8, - squareverticalfill: 0x25A5, - squarewhitewithsmallblack: 0x25A3, - srsquare: 0x33DB, - ssabengali: 0x09B7, - ssadeva: 0x0937, - ssagujarati: 0x0AB7, - ssangcieuckorean: 0x3149, - ssanghieuhkorean: 0x3185, - ssangieungkorean: 0x3180, - ssangkiyeokkorean: 0x3132, - ssangnieunkorean: 0x3165, - ssangpieupkorean: 0x3143, - ssangsioskorean: 0x3146, - ssangtikeutkorean: 0x3138, - ssuperior: 0xF6F2, - sterling: 0x00A3, - sterlingmonospace: 0xFFE1, - strokelongoverlaycmb: 0x0336, - strokeshortoverlaycmb: 0x0335, - subset: 0x2282, - subsetnotequal: 0x228A, - subsetorequal: 0x2286, - succeeds: 0x227B, - suchthat: 0x220B, - suhiragana: 0x3059, - sukatakana: 0x30B9, - sukatakanahalfwidth: 0xFF7D, - sukunarabic: 0x0652, - summation: 0x2211, - sun: 0x263C, - superset: 0x2283, - supersetnotequal: 0x228B, - supersetorequal: 0x2287, - svsquare: 0x33DC, - syouwaerasquare: 0x337C, - t: 0x0074, - tabengali: 0x09A4, - tackdown: 0x22A4, - tackleft: 0x22A3, - tadeva: 0x0924, - tagujarati: 0x0AA4, - tagurmukhi: 0x0A24, - taharabic: 0x0637, - tahfinalarabic: 0xFEC2, - tahinitialarabic: 0xFEC3, - tahiragana: 0x305F, - tahmedialarabic: 0xFEC4, - taisyouerasquare: 0x337D, - takatakana: 0x30BF, - takatakanahalfwidth: 0xFF80, - tatweelarabic: 0x0640, - tau: 0x03C4, - tav: 0x05EA, - tavdages: 0xFB4A, - tavdagesh: 0xFB4A, - tavdageshhebrew: 0xFB4A, - tavhebrew: 0x05EA, - tbar: 0x0167, - tbopomofo: 0x310A, - tcaron: 0x0165, - tccurl: 0x02A8, - tcedilla: 0x0163, - tcheharabic: 0x0686, - tchehfinalarabic: 0xFB7B, - tchehinitialarabic: 0xFB7C, - tchehmedialarabic: 0xFB7D, - tcircle: 0x24E3, - tcircumflexbelow: 0x1E71, - tcommaaccent: 0x0163, - tdieresis: 0x1E97, - tdotaccent: 0x1E6B, - tdotbelow: 0x1E6D, - tecyrillic: 0x0442, - tedescendercyrillic: 0x04AD, - teharabic: 0x062A, - tehfinalarabic: 0xFE96, - tehhahinitialarabic: 0xFCA2, - tehhahisolatedarabic: 0xFC0C, - tehinitialarabic: 0xFE97, - tehiragana: 0x3066, - tehjeeminitialarabic: 0xFCA1, - tehjeemisolatedarabic: 0xFC0B, - tehmarbutaarabic: 0x0629, - tehmarbutafinalarabic: 0xFE94, - tehmedialarabic: 0xFE98, - tehmeeminitialarabic: 0xFCA4, - tehmeemisolatedarabic: 0xFC0E, - tehnoonfinalarabic: 0xFC73, - tekatakana: 0x30C6, - tekatakanahalfwidth: 0xFF83, - telephone: 0x2121, - telephoneblack: 0x260E, - telishagedolahebrew: 0x05A0, - telishaqetanahebrew: 0x05A9, - tencircle: 0x2469, - tenideographicparen: 0x3229, - tenparen: 0x247D, - tenperiod: 0x2491, - tenroman: 0x2179, - tesh: 0x02A7, - tet: 0x05D8, - tetdagesh: 0xFB38, - tetdageshhebrew: 0xFB38, - tethebrew: 0x05D8, - tetsecyrillic: 0x04B5, - tevirhebrew: 0x059B, - tevirlefthebrew: 0x059B, - thabengali: 0x09A5, - thadeva: 0x0925, - thagujarati: 0x0AA5, - thagurmukhi: 0x0A25, - thalarabic: 0x0630, - thalfinalarabic: 0xFEAC, - thanthakhatlowleftthai: 0xF898, - thanthakhatlowrightthai: 0xF897, - thanthakhatthai: 0x0E4C, - thanthakhatupperleftthai: 0xF896, - theharabic: 0x062B, - thehfinalarabic: 0xFE9A, - thehinitialarabic: 0xFE9B, - thehmedialarabic: 0xFE9C, - thereexists: 0x2203, - therefore: 0x2234, - theta: 0x03B8, - theta1: 0x03D1, - thetasymbolgreek: 0x03D1, - thieuthacirclekorean: 0x3279, - thieuthaparenkorean: 0x3219, - thieuthcirclekorean: 0x326B, - thieuthkorean: 0x314C, - thieuthparenkorean: 0x320B, - thirteencircle: 0x246C, - thirteenparen: 0x2480, - thirteenperiod: 0x2494, - thonangmonthothai: 0x0E11, - thook: 0x01AD, - thophuthaothai: 0x0E12, - thorn: 0x00FE, - thothahanthai: 0x0E17, - thothanthai: 0x0E10, - thothongthai: 0x0E18, - thothungthai: 0x0E16, - thousandcyrillic: 0x0482, - thousandsseparatorarabic: 0x066C, - thousandsseparatorpersian: 0x066C, - three: 0x0033, - threearabic: 0x0663, - threebengali: 0x09E9, - threecircle: 0x2462, - threecircleinversesansserif: 0x278C, - threedeva: 0x0969, - threeeighths: 0x215C, - threegujarati: 0x0AE9, - threegurmukhi: 0x0A69, - threehackarabic: 0x0663, - threehangzhou: 0x3023, - threeideographicparen: 0x3222, - threeinferior: 0x2083, - threemonospace: 0xFF13, - threenumeratorbengali: 0x09F6, - threeoldstyle: 0xF733, - threeparen: 0x2476, - threeperiod: 0x248A, - threepersian: 0x06F3, - threequarters: 0x00BE, - threequartersemdash: 0xF6DE, - threeroman: 0x2172, - threesuperior: 0x00B3, - threethai: 0x0E53, - thzsquare: 0x3394, - tihiragana: 0x3061, - tikatakana: 0x30C1, - tikatakanahalfwidth: 0xFF81, - tikeutacirclekorean: 0x3270, - tikeutaparenkorean: 0x3210, - tikeutcirclekorean: 0x3262, - tikeutkorean: 0x3137, - tikeutparenkorean: 0x3202, - tilde: 0x02DC, - tildebelowcmb: 0x0330, - tildecmb: 0x0303, - tildecomb: 0x0303, - tildedoublecmb: 0x0360, - tildeoperator: 0x223C, - tildeoverlaycmb: 0x0334, - tildeverticalcmb: 0x033E, - timescircle: 0x2297, - tipehahebrew: 0x0596, - tipehalefthebrew: 0x0596, - tippigurmukhi: 0x0A70, - titlocyrilliccmb: 0x0483, - tiwnarmenian: 0x057F, - tlinebelow: 0x1E6F, - tmonospace: 0xFF54, - toarmenian: 0x0569, - tohiragana: 0x3068, - tokatakana: 0x30C8, - tokatakanahalfwidth: 0xFF84, - tonebarextrahighmod: 0x02E5, - tonebarextralowmod: 0x02E9, - tonebarhighmod: 0x02E6, - tonebarlowmod: 0x02E8, - tonebarmidmod: 0x02E7, - tonefive: 0x01BD, - tonesix: 0x0185, - tonetwo: 0x01A8, - tonos: 0x0384, - tonsquare: 0x3327, - topatakthai: 0x0E0F, - tortoiseshellbracketleft: 0x3014, - tortoiseshellbracketleftsmall: 0xFE5D, - tortoiseshellbracketleftvertical: 0xFE39, - tortoiseshellbracketright: 0x3015, - tortoiseshellbracketrightsmall: 0xFE5E, - tortoiseshellbracketrightvertical: 0xFE3A, - totaothai: 0x0E15, - tpalatalhook: 0x01AB, - tparen: 0x24AF, - trademark: 0x2122, - trademarksans: 0xF8EA, - trademarkserif: 0xF6DB, - tretroflexhook: 0x0288, - triagdn: 0x25BC, - triaglf: 0x25C4, - triagrt: 0x25BA, - triagup: 0x25B2, - ts: 0x02A6, - tsadi: 0x05E6, - tsadidagesh: 0xFB46, - tsadidageshhebrew: 0xFB46, - tsadihebrew: 0x05E6, - tsecyrillic: 0x0446, - tsere: 0x05B5, - tsere12: 0x05B5, - tsere1e: 0x05B5, - tsere2b: 0x05B5, - tserehebrew: 0x05B5, - tserenarrowhebrew: 0x05B5, - tserequarterhebrew: 0x05B5, - tserewidehebrew: 0x05B5, - tshecyrillic: 0x045B, - tsuperior: 0xF6F3, - ttabengali: 0x099F, - ttadeva: 0x091F, - ttagujarati: 0x0A9F, - ttagurmukhi: 0x0A1F, - tteharabic: 0x0679, - ttehfinalarabic: 0xFB67, - ttehinitialarabic: 0xFB68, - ttehmedialarabic: 0xFB69, - tthabengali: 0x09A0, - tthadeva: 0x0920, - tthagujarati: 0x0AA0, - tthagurmukhi: 0x0A20, - tturned: 0x0287, - tuhiragana: 0x3064, - tukatakana: 0x30C4, - tukatakanahalfwidth: 0xFF82, - tusmallhiragana: 0x3063, - tusmallkatakana: 0x30C3, - tusmallkatakanahalfwidth: 0xFF6F, - twelvecircle: 0x246B, - twelveparen: 0x247F, - twelveperiod: 0x2493, - twelveroman: 0x217B, - twentycircle: 0x2473, - twentyhangzhou: 0x5344, - twentyparen: 0x2487, - twentyperiod: 0x249B, - two: 0x0032, - twoarabic: 0x0662, - twobengali: 0x09E8, - twocircle: 0x2461, - twocircleinversesansserif: 0x278B, - twodeva: 0x0968, - twodotenleader: 0x2025, - twodotleader: 0x2025, - twodotleadervertical: 0xFE30, - twogujarati: 0x0AE8, - twogurmukhi: 0x0A68, - twohackarabic: 0x0662, - twohangzhou: 0x3022, - twoideographicparen: 0x3221, - twoinferior: 0x2082, - twomonospace: 0xFF12, - twonumeratorbengali: 0x09F5, - twooldstyle: 0xF732, - twoparen: 0x2475, - twoperiod: 0x2489, - twopersian: 0x06F2, - tworoman: 0x2171, - twostroke: 0x01BB, - twosuperior: 0x00B2, - twothai: 0x0E52, - twothirds: 0x2154, - u: 0x0075, - uacute: 0x00FA, - ubar: 0x0289, - ubengali: 0x0989, - ubopomofo: 0x3128, - ubreve: 0x016D, - ucaron: 0x01D4, - ucircle: 0x24E4, - ucircumflex: 0x00FB, - ucircumflexbelow: 0x1E77, - ucyrillic: 0x0443, - udattadeva: 0x0951, - udblacute: 0x0171, - udblgrave: 0x0215, - udeva: 0x0909, - udieresis: 0x00FC, - udieresisacute: 0x01D8, - udieresisbelow: 0x1E73, - udieresiscaron: 0x01DA, - udieresiscyrillic: 0x04F1, - udieresisgrave: 0x01DC, - udieresismacron: 0x01D6, - udotbelow: 0x1EE5, - ugrave: 0x00F9, - ugujarati: 0x0A89, - ugurmukhi: 0x0A09, - uhiragana: 0x3046, - uhookabove: 0x1EE7, - uhorn: 0x01B0, - uhornacute: 0x1EE9, - uhorndotbelow: 0x1EF1, - uhorngrave: 0x1EEB, - uhornhookabove: 0x1EED, - uhorntilde: 0x1EEF, - uhungarumlaut: 0x0171, - uhungarumlautcyrillic: 0x04F3, - uinvertedbreve: 0x0217, - ukatakana: 0x30A6, - ukatakanahalfwidth: 0xFF73, - ukcyrillic: 0x0479, - ukorean: 0x315C, - umacron: 0x016B, - umacroncyrillic: 0x04EF, - umacrondieresis: 0x1E7B, - umatragurmukhi: 0x0A41, - umonospace: 0xFF55, - underscore: 0x005F, - underscoredbl: 0x2017, - underscoremonospace: 0xFF3F, - underscorevertical: 0xFE33, - underscorewavy: 0xFE4F, - union: 0x222A, - universal: 0x2200, - uogonek: 0x0173, - uparen: 0x24B0, - upblock: 0x2580, - upperdothebrew: 0x05C4, - upsilon: 0x03C5, - upsilondieresis: 0x03CB, - upsilondieresistonos: 0x03B0, - upsilonlatin: 0x028A, - upsilontonos: 0x03CD, - uptackbelowcmb: 0x031D, - uptackmod: 0x02D4, - uragurmukhi: 0x0A73, - uring: 0x016F, - ushortcyrillic: 0x045E, - usmallhiragana: 0x3045, - usmallkatakana: 0x30A5, - usmallkatakanahalfwidth: 0xFF69, - ustraightcyrillic: 0x04AF, - ustraightstrokecyrillic: 0x04B1, - utilde: 0x0169, - utildeacute: 0x1E79, - utildebelow: 0x1E75, - uubengali: 0x098A, - uudeva: 0x090A, - uugujarati: 0x0A8A, - uugurmukhi: 0x0A0A, - uumatragurmukhi: 0x0A42, - uuvowelsignbengali: 0x09C2, - uuvowelsigndeva: 0x0942, - uuvowelsigngujarati: 0x0AC2, - uvowelsignbengali: 0x09C1, - uvowelsigndeva: 0x0941, - uvowelsigngujarati: 0x0AC1, - v: 0x0076, - vadeva: 0x0935, - vagujarati: 0x0AB5, - vagurmukhi: 0x0A35, - vakatakana: 0x30F7, - vav: 0x05D5, - vavdagesh: 0xFB35, - vavdagesh65: 0xFB35, - vavdageshhebrew: 0xFB35, - vavhebrew: 0x05D5, - vavholam: 0xFB4B, - vavholamhebrew: 0xFB4B, - vavvavhebrew: 0x05F0, - vavyodhebrew: 0x05F1, - vcircle: 0x24E5, - vdotbelow: 0x1E7F, - vecyrillic: 0x0432, - veharabic: 0x06A4, - vehfinalarabic: 0xFB6B, - vehinitialarabic: 0xFB6C, - vehmedialarabic: 0xFB6D, - vekatakana: 0x30F9, - venus: 0x2640, - verticalbar: 0x007C, - verticallineabovecmb: 0x030D, - verticallinebelowcmb: 0x0329, - verticallinelowmod: 0x02CC, - verticallinemod: 0x02C8, - vewarmenian: 0x057E, - vhook: 0x028B, - vikatakana: 0x30F8, - viramabengali: 0x09CD, - viramadeva: 0x094D, - viramagujarati: 0x0ACD, - visargabengali: 0x0983, - visargadeva: 0x0903, - visargagujarati: 0x0A83, - vmonospace: 0xFF56, - voarmenian: 0x0578, - voicediterationhiragana: 0x309E, - voicediterationkatakana: 0x30FE, - voicedmarkkana: 0x309B, - voicedmarkkanahalfwidth: 0xFF9E, - vokatakana: 0x30FA, - vparen: 0x24B1, - vtilde: 0x1E7D, - vturned: 0x028C, - vuhiragana: 0x3094, - vukatakana: 0x30F4, - w: 0x0077, - wacute: 0x1E83, - waekorean: 0x3159, - wahiragana: 0x308F, - wakatakana: 0x30EF, - wakatakanahalfwidth: 0xFF9C, - wakorean: 0x3158, - wasmallhiragana: 0x308E, - wasmallkatakana: 0x30EE, - wattosquare: 0x3357, - wavedash: 0x301C, - wavyunderscorevertical: 0xFE34, - wawarabic: 0x0648, - wawfinalarabic: 0xFEEE, - wawhamzaabovearabic: 0x0624, - wawhamzaabovefinalarabic: 0xFE86, - wbsquare: 0x33DD, - wcircle: 0x24E6, - wcircumflex: 0x0175, - wdieresis: 0x1E85, - wdotaccent: 0x1E87, - wdotbelow: 0x1E89, - wehiragana: 0x3091, - weierstrass: 0x2118, - wekatakana: 0x30F1, - wekorean: 0x315E, - weokorean: 0x315D, - wgrave: 0x1E81, - whitebullet: 0x25E6, - whitecircle: 0x25CB, - whitecircleinverse: 0x25D9, - whitecornerbracketleft: 0x300E, - whitecornerbracketleftvertical: 0xFE43, - whitecornerbracketright: 0x300F, - whitecornerbracketrightvertical: 0xFE44, - whitediamond: 0x25C7, - whitediamondcontainingblacksmalldiamond: 0x25C8, - whitedownpointingsmalltriangle: 0x25BF, - whitedownpointingtriangle: 0x25BD, - whiteleftpointingsmalltriangle: 0x25C3, - whiteleftpointingtriangle: 0x25C1, - whitelenticularbracketleft: 0x3016, - whitelenticularbracketright: 0x3017, - whiterightpointingsmalltriangle: 0x25B9, - whiterightpointingtriangle: 0x25B7, - whitesmallsquare: 0x25AB, - whitesmilingface: 0x263A, - whitesquare: 0x25A1, - whitestar: 0x2606, - whitetelephone: 0x260F, - whitetortoiseshellbracketleft: 0x3018, - whitetortoiseshellbracketright: 0x3019, - whiteuppointingsmalltriangle: 0x25B5, - whiteuppointingtriangle: 0x25B3, - wihiragana: 0x3090, - wikatakana: 0x30F0, - wikorean: 0x315F, - wmonospace: 0xFF57, - wohiragana: 0x3092, - wokatakana: 0x30F2, - wokatakanahalfwidth: 0xFF66, - won: 0x20A9, - wonmonospace: 0xFFE6, - wowaenthai: 0x0E27, - wparen: 0x24B2, - wring: 0x1E98, - wsuperior: 0x02B7, - wturned: 0x028D, - wynn: 0x01BF, - x: 0x0078, - xabovecmb: 0x033D, - xbopomofo: 0x3112, - xcircle: 0x24E7, - xdieresis: 0x1E8D, - xdotaccent: 0x1E8B, - xeharmenian: 0x056D, - xi: 0x03BE, - xmonospace: 0xFF58, - xparen: 0x24B3, - xsuperior: 0x02E3, - y: 0x0079, - yaadosquare: 0x334E, - yabengali: 0x09AF, - yacute: 0x00FD, - yadeva: 0x092F, - yaekorean: 0x3152, - yagujarati: 0x0AAF, - yagurmukhi: 0x0A2F, - yahiragana: 0x3084, - yakatakana: 0x30E4, - yakatakanahalfwidth: 0xFF94, - yakorean: 0x3151, - yamakkanthai: 0x0E4E, - yasmallhiragana: 0x3083, - yasmallkatakana: 0x30E3, - yasmallkatakanahalfwidth: 0xFF6C, - yatcyrillic: 0x0463, - ycircle: 0x24E8, - ycircumflex: 0x0177, - ydieresis: 0x00FF, - ydotaccent: 0x1E8F, - ydotbelow: 0x1EF5, - yeharabic: 0x064A, - yehbarreearabic: 0x06D2, - yehbarreefinalarabic: 0xFBAF, - yehfinalarabic: 0xFEF2, - yehhamzaabovearabic: 0x0626, - yehhamzaabovefinalarabic: 0xFE8A, - yehhamzaaboveinitialarabic: 0xFE8B, - yehhamzaabovemedialarabic: 0xFE8C, - yehinitialarabic: 0xFEF3, - yehmedialarabic: 0xFEF4, - yehmeeminitialarabic: 0xFCDD, - yehmeemisolatedarabic: 0xFC58, - yehnoonfinalarabic: 0xFC94, - yehthreedotsbelowarabic: 0x06D1, - yekorean: 0x3156, - yen: 0x00A5, - yenmonospace: 0xFFE5, - yeokorean: 0x3155, - yeorinhieuhkorean: 0x3186, - yerahbenyomohebrew: 0x05AA, - yerahbenyomolefthebrew: 0x05AA, - yericyrillic: 0x044B, - yerudieresiscyrillic: 0x04F9, - yesieungkorean: 0x3181, - yesieungpansioskorean: 0x3183, - yesieungsioskorean: 0x3182, - yetivhebrew: 0x059A, - ygrave: 0x1EF3, - yhook: 0x01B4, - yhookabove: 0x1EF7, - yiarmenian: 0x0575, - yicyrillic: 0x0457, - yikorean: 0x3162, - yinyang: 0x262F, - yiwnarmenian: 0x0582, - ymonospace: 0xFF59, - yod: 0x05D9, - yoddagesh: 0xFB39, - yoddageshhebrew: 0xFB39, - yodhebrew: 0x05D9, - yodyodhebrew: 0x05F2, - yodyodpatahhebrew: 0xFB1F, - yohiragana: 0x3088, - yoikorean: 0x3189, - yokatakana: 0x30E8, - yokatakanahalfwidth: 0xFF96, - yokorean: 0x315B, - yosmallhiragana: 0x3087, - yosmallkatakana: 0x30E7, - yosmallkatakanahalfwidth: 0xFF6E, - yotgreek: 0x03F3, - yoyaekorean: 0x3188, - yoyakorean: 0x3187, - yoyakthai: 0x0E22, - yoyingthai: 0x0E0D, - yparen: 0x24B4, - ypogegrammeni: 0x037A, - ypogegrammenigreekcmb: 0x0345, - yr: 0x01A6, - yring: 0x1E99, - ysuperior: 0x02B8, - ytilde: 0x1EF9, - yturned: 0x028E, - yuhiragana: 0x3086, - yuikorean: 0x318C, - yukatakana: 0x30E6, - yukatakanahalfwidth: 0xFF95, - yukorean: 0x3160, - yusbigcyrillic: 0x046B, - yusbigiotifiedcyrillic: 0x046D, - yuslittlecyrillic: 0x0467, - yuslittleiotifiedcyrillic: 0x0469, - yusmallhiragana: 0x3085, - yusmallkatakana: 0x30E5, - yusmallkatakanahalfwidth: 0xFF6D, - yuyekorean: 0x318B, - yuyeokorean: 0x318A, - yyabengali: 0x09DF, - yyadeva: 0x095F, - z: 0x007A, - zaarmenian: 0x0566, - zacute: 0x017A, - zadeva: 0x095B, - zagurmukhi: 0x0A5B, - zaharabic: 0x0638, - zahfinalarabic: 0xFEC6, - zahinitialarabic: 0xFEC7, - zahiragana: 0x3056, - zahmedialarabic: 0xFEC8, - zainarabic: 0x0632, - zainfinalarabic: 0xFEB0, - zakatakana: 0x30B6, - zaqefgadolhebrew: 0x0595, - zaqefqatanhebrew: 0x0594, - zarqahebrew: 0x0598, - zayin: 0x05D6, - zayindagesh: 0xFB36, - zayindageshhebrew: 0xFB36, - zayinhebrew: 0x05D6, - zbopomofo: 0x3117, - zcaron: 0x017E, - zcircle: 0x24E9, - zcircumflex: 0x1E91, - zcurl: 0x0291, - zdot: 0x017C, - zdotaccent: 0x017C, - zdotbelow: 0x1E93, - zecyrillic: 0x0437, - zedescendercyrillic: 0x0499, - zedieresiscyrillic: 0x04DF, - zehiragana: 0x305C, - zekatakana: 0x30BC, - zero: 0x0030, - zeroarabic: 0x0660, - zerobengali: 0x09E6, - zerodeva: 0x0966, - zerogujarati: 0x0AE6, - zerogurmukhi: 0x0A66, - zerohackarabic: 0x0660, - zeroinferior: 0x2080, - zeromonospace: 0xFF10, - zerooldstyle: 0xF730, - zeropersian: 0x06F0, - zerosuperior: 0x2070, - zerothai: 0x0E50, - zerowidthjoiner: 0xFEFF, - zerowidthnonjoiner: 0x200C, - zerowidthspace: 0x200B, - zeta: 0x03B6, - zhbopomofo: 0x3113, - zhearmenian: 0x056A, - zhebrevecyrillic: 0x04C2, - zhecyrillic: 0x0436, - zhedescendercyrillic: 0x0497, - zhedieresiscyrillic: 0x04DD, - zihiragana: 0x3058, - zikatakana: 0x30B8, - zinorhebrew: 0x05AE, - zlinebelow: 0x1E95, - zmonospace: 0xFF5A, - zohiragana: 0x305E, - zokatakana: 0x30BE, - zparen: 0x24B5, - zretroflexhook: 0x0290, - zstroke: 0x01B6, - zuhiragana: 0x305A, - zukatakana: 0x30BA, - '.notdef': 0x0000 -}; +var PostScriptStack = (function PostScriptStackClosure() { + var MAX_STACK_SIZE = 100; + function PostScriptStack(initialStack) { + this.stack = !initialStack ? [] : + Array.prototype.slice.call(initialStack, 0); + } -var DingbatsGlyphsUnicode = { - space: 0x0020, - a1: 0x2701, - a2: 0x2702, - a202: 0x2703, - a3: 0x2704, - a4: 0x260E, - a5: 0x2706, - a119: 0x2707, - a118: 0x2708, - a117: 0x2709, - a11: 0x261B, - a12: 0x261E, - a13: 0x270C, - a14: 0x270D, - a15: 0x270E, - a16: 0x270F, - a105: 0x2710, - a17: 0x2711, - a18: 0x2712, - a19: 0x2713, - a20: 0x2714, - a21: 0x2715, - a22: 0x2716, - a23: 0x2717, - a24: 0x2718, - a25: 0x2719, - a26: 0x271A, - a27: 0x271B, - a28: 0x271C, - a6: 0x271D, - a7: 0x271E, - a8: 0x271F, - a9: 0x2720, - a10: 0x2721, - a29: 0x2722, - a30: 0x2723, - a31: 0x2724, - a32: 0x2725, - a33: 0x2726, - a34: 0x2727, - a35: 0x2605, - a36: 0x2729, - a37: 0x272A, - a38: 0x272B, - a39: 0x272C, - a40: 0x272D, - a41: 0x272E, - a42: 0x272F, - a43: 0x2730, - a44: 0x2731, - a45: 0x2732, - a46: 0x2733, - a47: 0x2734, - a48: 0x2735, - a49: 0x2736, - a50: 0x2737, - a51: 0x2738, - a52: 0x2739, - a53: 0x273A, - a54: 0x273B, - a55: 0x273C, - a56: 0x273D, - a57: 0x273E, - a58: 0x273F, - a59: 0x2740, - a60: 0x2741, - a61: 0x2742, - a62: 0x2743, - a63: 0x2744, - a64: 0x2745, - a65: 0x2746, - a66: 0x2747, - a67: 0x2748, - a68: 0x2749, - a69: 0x274A, - a70: 0x274B, - a71: 0x25CF, - a72: 0x274D, - a73: 0x25A0, - a74: 0x274F, - a203: 0x2750, - a75: 0x2751, - a204: 0x2752, - a76: 0x25B2, - a77: 0x25BC, - a78: 0x25C6, - a79: 0x2756, - a81: 0x25D7, - a82: 0x2758, - a83: 0x2759, - a84: 0x275A, - a97: 0x275B, - a98: 0x275C, - a99: 0x275D, - a100: 0x275E, - a101: 0x2761, - a102: 0x2762, - a103: 0x2763, - a104: 0x2764, - a106: 0x2765, - a107: 0x2766, - a108: 0x2767, - a112: 0x2663, - a111: 0x2666, - a110: 0x2665, - a109: 0x2660, - a120: 0x2460, - a121: 0x2461, - a122: 0x2462, - a123: 0x2463, - a124: 0x2464, - a125: 0x2465, - a126: 0x2466, - a127: 0x2467, - a128: 0x2468, - a129: 0x2469, - a130: 0x2776, - a131: 0x2777, - a132: 0x2778, - a133: 0x2779, - a134: 0x277A, - a135: 0x277B, - a136: 0x277C, - a137: 0x277D, - a138: 0x277E, - a139: 0x277F, - a140: 0x2780, - a141: 0x2781, - a142: 0x2782, - a143: 0x2783, - a144: 0x2784, - a145: 0x2785, - a146: 0x2786, - a147: 0x2787, - a148: 0x2788, - a149: 0x2789, - a150: 0x278A, - a151: 0x278B, - a152: 0x278C, - a153: 0x278D, - a154: 0x278E, - a155: 0x278F, - a156: 0x2790, - a157: 0x2791, - a158: 0x2792, - a159: 0x2793, - a160: 0x2794, - a161: 0x2192, - a163: 0x2194, - a164: 0x2195, - a196: 0x2798, - a165: 0x2799, - a192: 0x279A, - a166: 0x279B, - a167: 0x279C, - a168: 0x279D, - a169: 0x279E, - a170: 0x279F, - a171: 0x27A0, - a172: 0x27A1, - a173: 0x27A2, - a162: 0x27A3, - a174: 0x27A4, - a175: 0x27A5, - a176: 0x27A6, - a177: 0x27A7, - a178: 0x27A8, - a179: 0x27A9, - a193: 0x27AA, - a180: 0x27AB, - a199: 0x27AC, - a181: 0x27AD, - a200: 0x27AE, - a182: 0x27AF, - a201: 0x27B1, - a183: 0x27B2, - a184: 0x27B3, - a197: 0x27B4, - a185: 0x27B5, - a194: 0x27B6, - a198: 0x27B7, - a186: 0x27B8, - a195: 0x27B9, - a187: 0x27BA, - a188: 0x27BB, - a189: 0x27BC, - a190: 0x27BD, - a191: 0x27BE, - a89: 0x2768, // 0xF8D7 - a90: 0x2769, // 0xF8D8 - a93: 0x276A, // 0xF8D9 - a94: 0x276B, // 0xF8DA - a91: 0x276C, // 0xF8DB - a92: 0x276D, // 0xF8DC - a205: 0x276E, // 0xF8DD - a85: 0x276F, // 0xF8DE - a206: 0x2770, // 0xF8DF - a86: 0x2771, // 0xF8E0 - a87: 0x2772, // 0xF8E1 - a88: 0x2773, // 0xF8E2 - a95: 0x2774, // 0xF8E3 - a96: 0x2775, // 0xF8E4 - '.notdef': 0x0000 -}; + PostScriptStack.prototype = { + push: function PostScriptStack_push(value) { + if (this.stack.length >= MAX_STACK_SIZE) { + error('PostScript function stack overflow.'); + } + this.stack.push(value); + }, + pop: function PostScriptStack_pop() { + if (this.stack.length <= 0) { + error('PostScript function stack underflow.'); + } + return this.stack.pop(); + }, + copy: function PostScriptStack_copy(n) { + if (this.stack.length + n >= MAX_STACK_SIZE) { + error('PostScript function stack overflow.'); + } + var stack = this.stack; + for (var i = stack.length - n, j = n - 1; j >= 0; j--, i++) { + stack.push(stack[i]); + } + }, + index: function PostScriptStack_index(n) { + this.push(this.stack[this.stack.length - n - 1]); + }, + // rotate the last n stack elements p times + roll: function PostScriptStack_roll(n, p) { + var stack = this.stack; + var l = stack.length - n; + var r = stack.length - 1, c = l + (p - Math.floor(p / n) * n), i, j, t; + for (i = l, j = r; i < j; i++, j--) { + t = stack[i]; stack[i] = stack[j]; stack[j] = t; + } + for (i = l, j = c - 1; i < j; i++, j--) { + t = stack[i]; stack[i] = stack[j]; stack[j] = t; + } + for (i = c, j = r; i < j; i++, j--) { + t = stack[i]; stack[i] = stack[j]; stack[j] = t; + } + } + }; + return PostScriptStack; +})(); +var PostScriptEvaluator = (function PostScriptEvaluatorClosure() { + function PostScriptEvaluator(operators) { + this.operators = operators; + } + PostScriptEvaluator.prototype = { + execute: function PostScriptEvaluator_execute(initialStack) { + var stack = new PostScriptStack(initialStack); + var counter = 0; + var operators = this.operators; + var length = operators.length; + var operator, a, b; + while (counter < length) { + operator = operators[counter++]; + if (typeof operator === 'number') { + // Operator is really an operand and should be pushed to the stack. + stack.push(operator); + continue; + } + switch (operator) { + // non standard ps operators + case 'jz': // jump if false + b = stack.pop(); + a = stack.pop(); + if (!a) { + counter = b; + } + break; + case 'j': // jump + a = stack.pop(); + counter = a; + break; + // all ps operators in alphabetical order (excluding if/ifelse) + case 'abs': + a = stack.pop(); + stack.push(Math.abs(a)); + break; + case 'add': + b = stack.pop(); + a = stack.pop(); + stack.push(a + b); + break; + case 'and': + b = stack.pop(); + a = stack.pop(); + if (isBool(a) && isBool(b)) { + stack.push(a && b); + } else { + stack.push(a & b); + } + break; + case 'atan': + a = stack.pop(); + stack.push(Math.atan(a)); + break; + case 'bitshift': + b = stack.pop(); + a = stack.pop(); + if (a > 0) { + stack.push(a << b); + } else { + stack.push(a >> b); + } + break; + case 'ceiling': + a = stack.pop(); + stack.push(Math.ceil(a)); + break; + case 'copy': + a = stack.pop(); + stack.copy(a); + break; + case 'cos': + a = stack.pop(); + stack.push(Math.cos(a)); + break; + case 'cvi': + a = stack.pop() | 0; + stack.push(a); + break; + case 'cvr': + // noop + break; + case 'div': + b = stack.pop(); + a = stack.pop(); + stack.push(a / b); + break; + case 'dup': + stack.copy(1); + break; + case 'eq': + b = stack.pop(); + a = stack.pop(); + stack.push(a === b); + break; + case 'exch': + stack.roll(2, 1); + break; + case 'exp': + b = stack.pop(); + a = stack.pop(); + stack.push(Math.pow(a, b)); + break; + case 'false': + stack.push(false); + break; + case 'floor': + a = stack.pop(); + stack.push(Math.floor(a)); + break; + case 'ge': + b = stack.pop(); + a = stack.pop(); + stack.push(a >= b); + break; + case 'gt': + b = stack.pop(); + a = stack.pop(); + stack.push(a > b); + break; + case 'idiv': + b = stack.pop(); + a = stack.pop(); + stack.push((a / b) | 0); + break; + case 'index': + a = stack.pop(); + stack.index(a); + break; + case 'le': + b = stack.pop(); + a = stack.pop(); + stack.push(a <= b); + break; + case 'ln': + a = stack.pop(); + stack.push(Math.log(a)); + break; + case 'log': + a = stack.pop(); + stack.push(Math.log(a) / Math.LN10); + break; + case 'lt': + b = stack.pop(); + a = stack.pop(); + stack.push(a < b); + break; + case 'mod': + b = stack.pop(); + a = stack.pop(); + stack.push(a % b); + break; + case 'mul': + b = stack.pop(); + a = stack.pop(); + stack.push(a * b); + break; + case 'ne': + b = stack.pop(); + a = stack.pop(); + stack.push(a !== b); + break; + case 'neg': + a = stack.pop(); + stack.push(-a); + break; + case 'not': + a = stack.pop(); + if (isBool(a)) { + stack.push(!a); + } else { + stack.push(~a); + } + break; + case 'or': + b = stack.pop(); + a = stack.pop(); + if (isBool(a) && isBool(b)) { + stack.push(a || b); + } else { + stack.push(a | b); + } + break; + case 'pop': + stack.pop(); + break; + case 'roll': + b = stack.pop(); + a = stack.pop(); + stack.roll(a, b); + break; + case 'round': + a = stack.pop(); + stack.push(Math.round(a)); + break; + case 'sin': + a = stack.pop(); + stack.push(Math.sin(a)); + break; + case 'sqrt': + a = stack.pop(); + stack.push(Math.sqrt(a)); + break; + case 'sub': + b = stack.pop(); + a = stack.pop(); + stack.push(a - b); + break; + case 'true': + stack.push(true); + break; + case 'truncate': + a = stack.pop(); + a = a < 0 ? Math.ceil(a) : Math.floor(a); + stack.push(a); + break; + case 'xor': + b = stack.pop(); + a = stack.pop(); + if (isBool(a) && isBool(b)) { + stack.push(a !== b); + } else { + stack.push(a ^ b); + } + break; + default: + error('Unknown operator ' + operator); + break; + } + } + return stack.stack; + } + }; + return PostScriptEvaluator; +})(); + +// Most of the PDFs functions consist of simple operations such as: +// roll, exch, sub, cvr, pop, index, dup, mul, if, gt, add. +// +// We can compile most of such programs, and at the same moment, we can +// optimize some expressions using basic math properties. Keeping track of +// min/max values will allow us to avoid extra Math.min/Math.max calls. +var PostScriptCompiler = (function PostScriptCompilerClosure() { + function AstNode(type) { + this.type = type; + } + AstNode.prototype.visit = function (visitor) { + throw new Error('abstract method'); + }; + + function AstArgument(index, min, max) { + AstNode.call(this, 'args'); + this.index = index; + this.min = min; + this.max = max; + } + AstArgument.prototype = Object.create(AstNode.prototype); + AstArgument.prototype.visit = function (visitor) { + visitor.visitArgument(this); + }; + + function AstLiteral(number) { + AstNode.call(this, 'literal'); + this.number = number; + this.min = number; + this.max = number; + } + AstLiteral.prototype = Object.create(AstNode.prototype); + AstLiteral.prototype.visit = function (visitor) { + visitor.visitLiteral(this); + }; + + function AstBinaryOperation(op, arg1, arg2, min, max) { + AstNode.call(this, 'binary'); + this.op = op; + this.arg1 = arg1; + this.arg2 = arg2; + this.min = min; + this.max = max; + } + AstBinaryOperation.prototype = Object.create(AstNode.prototype); + AstBinaryOperation.prototype.visit = function (visitor) { + visitor.visitBinaryOperation(this); + }; + + function AstMin(arg, max) { + AstNode.call(this, 'max'); + this.arg = arg; + this.min = arg.min; + this.max = max; + } + AstMin.prototype = Object.create(AstNode.prototype); + AstMin.prototype.visit = function (visitor) { + visitor.visitMin(this); + }; + + function AstVariable(index, min, max) { + AstNode.call(this, 'var'); + this.index = index; + this.min = min; + this.max = max; + } + AstVariable.prototype = Object.create(AstNode.prototype); + AstVariable.prototype.visit = function (visitor) { + visitor.visitVariable(this); + }; + + function AstVariableDefinition(variable, arg) { + AstNode.call(this, 'definition'); + this.variable = variable; + this.arg = arg; + } + AstVariableDefinition.prototype = Object.create(AstNode.prototype); + AstVariableDefinition.prototype.visit = function (visitor) { + visitor.visitVariableDefinition(this); + }; + + function ExpressionBuilderVisitor() { + this.parts = []; + } + ExpressionBuilderVisitor.prototype = { + visitArgument: function (arg) { + this.parts.push('Math.max(', arg.min, ', Math.min(', + arg.max, ', src[srcOffset + ', arg.index, ']))'); + }, + visitVariable: function (variable) { + this.parts.push('v', variable.index); + }, + visitLiteral: function (literal) { + this.parts.push(literal.number); + }, + visitBinaryOperation: function (operation) { + this.parts.push('('); + operation.arg1.visit(this); + this.parts.push(' ', operation.op, ' '); + operation.arg2.visit(this); + this.parts.push(')'); + }, + visitVariableDefinition: function (definition) { + this.parts.push('var '); + definition.variable.visit(this); + this.parts.push(' = '); + definition.arg.visit(this); + this.parts.push(';'); + }, + visitMin: function (max) { + this.parts.push('Math.min('); + max.arg.visit(this); + this.parts.push(', ', max.max, ')'); + }, + toString: function () { + return this.parts.join(''); + } + }; + + function buildAddOperation(num1, num2) { + if (num2.type === 'literal' && num2.number === 0) { + // optimization: second operand is 0 + return num1; + } + if (num1.type === 'literal' && num1.number === 0) { + // optimization: first operand is 0 + return num2; + } + if (num2.type === 'literal' && num1.type === 'literal') { + // optimization: operands operand are literals + return new AstLiteral(num1.number + num2.number); + } + return new AstBinaryOperation('+', num1, num2, + num1.min + num2.min, num1.max + num2.max); + } + + function buildMulOperation(num1, num2) { + if (num2.type === 'literal') { + // optimization: second operands is a literal... + if (num2.number === 0) { + return new AstLiteral(0); // and it's 0 + } else if (num2.number === 1) { + return num1; // and it's 1 + } else if (num1.type === 'literal') { + // ... and first operands is a literal too + return new AstLiteral(num1.number * num2.number); + } + } + if (num1.type === 'literal') { + // optimization: first operands is a literal... + if (num1.number === 0) { + return new AstLiteral(0); // and it's 0 + } else if (num1.number === 1) { + return num2; // and it's 1 + } + } + var min = Math.min(num1.min * num2.min, num1.min * num2.max, + num1.max * num2.min, num1.max * num2.max); + var max = Math.max(num1.min * num2.min, num1.min * num2.max, + num1.max * num2.min, num1.max * num2.max); + return new AstBinaryOperation('*', num1, num2, min, max); + } + + function buildSubOperation(num1, num2) { + if (num2.type === 'literal') { + // optimization: second operands is a literal... + if (num2.number === 0) { + return num1; // ... and it's 0 + } else if (num1.type === 'literal') { + // ... and first operands is a literal too + return new AstLiteral(num1.number - num2.number); + } + } + if (num2.type === 'binary' && num2.op === '-' && + num1.type === 'literal' && num1.number === 1 && + num2.arg1.type === 'literal' && num2.arg1.number === 1) { + // optimization for case: 1 - (1 - x) + return num2.arg2; + } + return new AstBinaryOperation('-', num1, num2, + num1.min - num2.max, num1.max - num2.min); + } + + function buildMinOperation(num1, max) { + if (num1.min >= max) { + // optimization: num1 min value is not less than required max + return new AstLiteral(max); // just returning max + } else if (num1.max <= max) { + // optimization: num1 max value is not greater than required max + return num1; // just returning an argument + } + return new AstMin(num1, max); + } + + function PostScriptCompiler() {} + PostScriptCompiler.prototype = { + compile: function PostScriptCompiler_compile(code, domain, range) { + var stack = []; + var i, ii; + var instructions = []; + var inputSize = domain.length >> 1, outputSize = range.length >> 1; + var lastRegister = 0; + var n, j; + var num1, num2, ast1, ast2, tmpVar, item; + for (i = 0; i < inputSize; i++) { + stack.push(new AstArgument(i, domain[i * 2], domain[i * 2 + 1])); + } + + for (i = 0, ii = code.length; i < ii; i++) { + item = code[i]; + if (typeof item === 'number') { + stack.push(new AstLiteral(item)); + continue; + } + + switch (item) { + case 'add': + if (stack.length < 2) { + return null; + } + num2 = stack.pop(); + num1 = stack.pop(); + stack.push(buildAddOperation(num1, num2)); + break; + case 'cvr': + if (stack.length < 1) { + return null; + } + break; + case 'mul': + if (stack.length < 2) { + return null; + } + num2 = stack.pop(); + num1 = stack.pop(); + stack.push(buildMulOperation(num1, num2)); + break; + case 'sub': + if (stack.length < 2) { + return null; + } + num2 = stack.pop(); + num1 = stack.pop(); + stack.push(buildSubOperation(num1, num2)); + break; + case 'exch': + if (stack.length < 2) { + return null; + } + ast1 = stack.pop(); ast2 = stack.pop(); + stack.push(ast1, ast2); + break; + case 'pop': + if (stack.length < 1) { + return null; + } + stack.pop(); + break; + case 'index': + if (stack.length < 1) { + return null; + } + num1 = stack.pop(); + if (num1.type !== 'literal') { + return null; + } + n = num1.number; + if (n < 0 || (n|0) !== n || stack.length < n) { + return null; + } + ast1 = stack[stack.length - n - 1]; + if (ast1.type === 'literal' || ast1.type === 'var') { + stack.push(ast1); + break; + } + tmpVar = new AstVariable(lastRegister++, ast1.min, ast1.max); + stack[stack.length - n - 1] = tmpVar; + stack.push(tmpVar); + instructions.push(new AstVariableDefinition(tmpVar, ast1)); + break; + case 'dup': + if (stack.length < 1) { + return null; + } + if (typeof code[i + 1] === 'number' && code[i + 2] === 'gt' && + code[i + 3] === i + 7 && code[i + 4] === 'jz' && + code[i + 5] === 'pop' && code[i + 6] === code[i + 1]) { + // special case of the commands sequence for the min operation + num1 = stack.pop(); + stack.push(buildMinOperation(num1, code[i + 1])); + i += 6; + break; + } + ast1 = stack[stack.length - 1]; + if (ast1.type === 'literal' || ast1.type === 'var') { + // we don't have to save into intermediate variable a literal or + // variable. + stack.push(ast1); + break; + } + tmpVar = new AstVariable(lastRegister++, ast1.min, ast1.max); + stack[stack.length - 1] = tmpVar; + stack.push(tmpVar); + instructions.push(new AstVariableDefinition(tmpVar, ast1)); + break; + case 'roll': + if (stack.length < 2) { + return null; + } + num2 = stack.pop(); + num1 = stack.pop(); + if (num2.type !== 'literal' || num1.type !== 'literal') { + // both roll operands must be numbers + return null; + } + j = num2.number; + n = num1.number; + if (n <= 0 || (n|0) !== n || (j|0) !== j || stack.length < n) { + // ... and integers + return null; + } + j = ((j % n) + n) % n; + if (j === 0) { + break; // just skipping -- there are nothing to rotate + } + Array.prototype.push.apply(stack, + stack.splice(stack.length - n, n - j)); + break; + default: + return null; // unsupported operator + } + } + + if (stack.length !== outputSize) { + return null; + } + + var result = []; + instructions.forEach(function (instruction) { + var statementBuilder = new ExpressionBuilderVisitor(); + instruction.visit(statementBuilder); + result.push(statementBuilder.toString()); + }); + stack.forEach(function (expr, i) { + var statementBuilder = new ExpressionBuilderVisitor(); + expr.visit(statementBuilder); + var min = range[i * 2], max = range[i * 2 + 1]; + var out = [statementBuilder.toString()]; + if (min > expr.min) { + out.unshift('Math.max(', min, ', '); + out.push(')'); + } + if (max < expr.max) { + out.unshift('Math.min(', max, ', '); + out.push(')'); + } + out.unshift('dest[destOffset + ', i, '] = '); + out.push(';'); + result.push(out.join('')); + }); + return result.join('\n'); + } + }; + + return PostScriptCompiler; +})(); + +exports.isPDFFunction = isPDFFunction; +exports.PDFFunction = PDFFunction; +exports.PostScriptEvaluator = PostScriptEvaluator; +exports.PostScriptCompiler = PostScriptCompiler; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreColorSpace = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreFunction, root.pdfjsCoreStream); + } +}(this, function (exports, sharedUtil, corePrimitives, coreFunction, + coreStream) { + +var error = sharedUtil.error; +var info = sharedUtil.info; +var isArray = sharedUtil.isArray; +var isString = sharedUtil.isString; +var shadow = sharedUtil.shadow; +var warn = sharedUtil.warn; +var isDict = corePrimitives.isDict; +var isName = corePrimitives.isName; +var isStream = corePrimitives.isStream; +var PDFFunction = coreFunction.PDFFunction; + +var coreImage; // see _setCoreImage below +var PDFImage; // = coreImage.PDFImage; + +var ColorSpace = (function ColorSpaceClosure() { + // Constructor should define this.numComps, this.defaultColor, this.name + function ColorSpace() { + error('should not call ColorSpace constructor'); + } + + ColorSpace.prototype = { + /** + * Converts the color value to the RGB color. The color components are + * located in the src array starting from the srcOffset. Returns the array + * of the rgb components, each value ranging from [0,255]. + */ + getRgb: function ColorSpace_getRgb(src, srcOffset) { + var rgb = new Uint8Array(3); + this.getRgbItem(src, srcOffset, rgb, 0); + return rgb; + }, + /** + * Converts the color value to the RGB color, similar to the getRgb method. + * The result placed into the dest array starting from the destOffset. + */ + getRgbItem: function ColorSpace_getRgbItem(src, srcOffset, + dest, destOffset) { + error('Should not call ColorSpace.getRgbItem'); + }, + /** + * Converts the specified number of the color values to the RGB colors. + * The colors are located in the src array starting from the srcOffset. + * The result is placed into the dest array starting from the destOffset. + * The src array items shall be in [0,2^bits) range, the dest array items + * will be in [0,255] range. alpha01 indicates how many alpha components + * there are in the dest array; it will be either 0 (RGB array) or 1 (RGBA + * array). + */ + getRgbBuffer: function ColorSpace_getRgbBuffer(src, srcOffset, count, + dest, destOffset, bits, + alpha01) { + error('Should not call ColorSpace.getRgbBuffer'); + }, + /** + * Determines the number of bytes required to store the result of the + * conversion done by the getRgbBuffer method. As in getRgbBuffer, + * |alpha01| is either 0 (RGB output) or 1 (RGBA output). + */ + getOutputLength: function ColorSpace_getOutputLength(inputLength, + alpha01) { + error('Should not call ColorSpace.getOutputLength'); + }, + /** + * Returns true if source data will be equal the result/output data. + */ + isPassthrough: function ColorSpace_isPassthrough(bits) { + return false; + }, + /** + * Fills in the RGB colors in the destination buffer. alpha01 indicates + * how many alpha components there are in the dest array; it will be either + * 0 (RGB array) or 1 (RGBA array). + */ + fillRgb: function ColorSpace_fillRgb(dest, originalWidth, + originalHeight, width, height, + actualHeight, bpc, comps, alpha01) { + var count = originalWidth * originalHeight; + var rgbBuf = null; + var numComponentColors = 1 << bpc; + var needsResizing = originalHeight !== height || originalWidth !== width; + var i, ii; + + if (this.isPassthrough(bpc)) { + rgbBuf = comps; + } else if (this.numComps === 1 && count > numComponentColors && + this.name !== 'DeviceGray' && this.name !== 'DeviceRGB') { + // Optimization: create a color map when there is just one component and + // we are converting more colors than the size of the color map. We + // don't build the map if the colorspace is gray or rgb since those + // methods are faster than building a map. This mainly offers big speed + // ups for indexed and alternate colorspaces. + // + // TODO it may be worth while to cache the color map. While running + // testing I never hit a cache so I will leave that out for now (perhaps + // we are reparsing colorspaces too much?). + var allColors = bpc <= 8 ? new Uint8Array(numComponentColors) : + new Uint16Array(numComponentColors); + var key; + for (i = 0; i < numComponentColors; i++) { + allColors[i] = i; + } + var colorMap = new Uint8Array(numComponentColors * 3); + this.getRgbBuffer(allColors, 0, numComponentColors, colorMap, 0, bpc, + /* alpha01 = */ 0); + + var destPos, rgbPos; + if (!needsResizing) { + // Fill in the RGB values directly into |dest|. + destPos = 0; + for (i = 0; i < count; ++i) { + key = comps[i] * 3; + dest[destPos++] = colorMap[key]; + dest[destPos++] = colorMap[key + 1]; + dest[destPos++] = colorMap[key + 2]; + destPos += alpha01; + } + } else { + rgbBuf = new Uint8Array(count * 3); + rgbPos = 0; + for (i = 0; i < count; ++i) { + key = comps[i] * 3; + rgbBuf[rgbPos++] = colorMap[key]; + rgbBuf[rgbPos++] = colorMap[key + 1]; + rgbBuf[rgbPos++] = colorMap[key + 2]; + } + } + } else { + if (!needsResizing) { + // Fill in the RGB values directly into |dest|. + this.getRgbBuffer(comps, 0, width * actualHeight, dest, 0, bpc, + alpha01); + } else { + rgbBuf = new Uint8Array(count * 3); + this.getRgbBuffer(comps, 0, count, rgbBuf, 0, bpc, + /* alpha01 = */ 0); + } + } + + if (rgbBuf) { + if (needsResizing) { + PDFImage.resize(rgbBuf, bpc, 3, originalWidth, originalHeight, width, + height, dest, alpha01); + } else { + rgbPos = 0; + destPos = 0; + for (i = 0, ii = width * actualHeight; i < ii; i++) { + dest[destPos++] = rgbBuf[rgbPos++]; + dest[destPos++] = rgbBuf[rgbPos++]; + dest[destPos++] = rgbBuf[rgbPos++]; + destPos += alpha01; + } + } + } + }, + /** + * True if the colorspace has components in the default range of [0, 1]. + * This should be true for all colorspaces except for lab color spaces + * which are [0,100], [-128, 127], [-128, 127]. + */ + usesZeroToOneRange: true + }; + + ColorSpace.parse = function ColorSpace_parse(cs, xref, res) { + var IR = ColorSpace.parseToIR(cs, xref, res); + if (IR instanceof AlternateCS) { + return IR; + } + return ColorSpace.fromIR(IR); + }; + + ColorSpace.fromIR = function ColorSpace_fromIR(IR) { + var name = isArray(IR) ? IR[0] : IR; + var whitePoint, blackPoint, gamma; + + switch (name) { + case 'DeviceGrayCS': + return this.singletons.gray; + case 'DeviceRgbCS': + return this.singletons.rgb; + case 'DeviceCmykCS': + return this.singletons.cmyk; + case 'CalGrayCS': + whitePoint = IR[1].WhitePoint; + blackPoint = IR[1].BlackPoint; + gamma = IR[1].Gamma; + return new CalGrayCS(whitePoint, blackPoint, gamma); + case 'CalRGBCS': + whitePoint = IR[1].WhitePoint; + blackPoint = IR[1].BlackPoint; + gamma = IR[1].Gamma; + var matrix = IR[1].Matrix; + return new CalRGBCS(whitePoint, blackPoint, gamma, matrix); + case 'PatternCS': + var basePatternCS = IR[1]; + if (basePatternCS) { + basePatternCS = ColorSpace.fromIR(basePatternCS); + } + return new PatternCS(basePatternCS); + case 'IndexedCS': + var baseIndexedCS = IR[1]; + var hiVal = IR[2]; + var lookup = IR[3]; + return new IndexedCS(ColorSpace.fromIR(baseIndexedCS), hiVal, lookup); + case 'AlternateCS': + var numComps = IR[1]; + var alt = IR[2]; + var tintFnIR = IR[3]; + + return new AlternateCS(numComps, ColorSpace.fromIR(alt), + PDFFunction.fromIR(tintFnIR)); + case 'LabCS': + whitePoint = IR[1].WhitePoint; + blackPoint = IR[1].BlackPoint; + var range = IR[1].Range; + return new LabCS(whitePoint, blackPoint, range); + default: + error('Unknown name ' + name); + } + return null; + }; + + ColorSpace.parseToIR = function ColorSpace_parseToIR(cs, xref, res) { + if (isName(cs)) { + var colorSpaces = res.get('ColorSpace'); + if (isDict(colorSpaces)) { + var refcs = colorSpaces.get(cs.name); + if (refcs) { + cs = refcs; + } + } + } + + cs = xref.fetchIfRef(cs); + var mode; + + if (isName(cs)) { + mode = cs.name; + this.mode = mode; + + switch (mode) { + case 'DeviceGray': + case 'G': + return 'DeviceGrayCS'; + case 'DeviceRGB': + case 'RGB': + return 'DeviceRgbCS'; + case 'DeviceCMYK': + case 'CMYK': + return 'DeviceCmykCS'; + case 'Pattern': + return ['PatternCS', null]; + default: + error('unrecognized colorspace ' + mode); + } + } else if (isArray(cs)) { + mode = xref.fetchIfRef(cs[0]).name; + this.mode = mode; + var numComps, params, alt; + + switch (mode) { + case 'DeviceGray': + case 'G': + return 'DeviceGrayCS'; + case 'DeviceRGB': + case 'RGB': + return 'DeviceRgbCS'; + case 'DeviceCMYK': + case 'CMYK': + return 'DeviceCmykCS'; + case 'CalGray': + params = xref.fetchIfRef(cs[1]).getAll(); + return ['CalGrayCS', params]; + case 'CalRGB': + params = xref.fetchIfRef(cs[1]).getAll(); + return ['CalRGBCS', params]; + case 'ICCBased': + var stream = xref.fetchIfRef(cs[1]); + var dict = stream.dict; + numComps = dict.get('N'); + alt = dict.get('Alternate'); + if (alt) { + var altIR = ColorSpace.parseToIR(alt, xref, res); + // Parse the /Alternate CS to ensure that the number of components + // are correct, and also (indirectly) that it is not a PatternCS. + var altCS = ColorSpace.fromIR(altIR); + if (altCS.numComps === numComps) { + return altIR; + } + warn('ICCBased color space: Ignoring incorrect /Alternate entry.'); + } + if (numComps === 1) { + return 'DeviceGrayCS'; + } else if (numComps === 3) { + return 'DeviceRgbCS'; + } else if (numComps === 4) { + return 'DeviceCmykCS'; + } + break; + case 'Pattern': + var basePatternCS = cs[1] || null; + if (basePatternCS) { + basePatternCS = ColorSpace.parseToIR(basePatternCS, xref, res); + } + return ['PatternCS', basePatternCS]; + case 'Indexed': + case 'I': + var baseIndexedCS = ColorSpace.parseToIR(cs[1], xref, res); + var hiVal = xref.fetchIfRef(cs[2]) + 1; + var lookup = xref.fetchIfRef(cs[3]); + if (isStream(lookup)) { + lookup = lookup.getBytes(); + } + return ['IndexedCS', baseIndexedCS, hiVal, lookup]; + case 'Separation': + case 'DeviceN': + var name = xref.fetchIfRef(cs[1]); + numComps = 1; + if (isName(name)) { + numComps = 1; + } else if (isArray(name)) { + numComps = name.length; + } + alt = ColorSpace.parseToIR(cs[2], xref, res); + var tintFnIR = PDFFunction.getIR(xref, xref.fetchIfRef(cs[3])); + return ['AlternateCS', numComps, alt, tintFnIR]; + case 'Lab': + params = xref.fetchIfRef(cs[1]).getAll(); + return ['LabCS', params]; + default: + error('unimplemented color space object "' + mode + '"'); + } + } else { + error('unrecognized color space object: "' + cs + '"'); + } + return null; + }; + /** + * Checks if a decode map matches the default decode map for a color space. + * This handles the general decode maps where there are two values per + * component. e.g. [0, 1, 0, 1, 0, 1] for a RGB color. + * This does not handle Lab, Indexed, or Pattern decode maps since they are + * slightly different. + * @param {Array} decode Decode map (usually from an image). + * @param {Number} n Number of components the color space has. + */ + ColorSpace.isDefaultDecode = function ColorSpace_isDefaultDecode(decode, n) { + if (!isArray(decode)) { + return true; + } + + if (n * 2 !== decode.length) { + warn('The decode map is not the correct length'); + return true; + } + for (var i = 0, ii = decode.length; i < ii; i += 2) { + if (decode[i] !== 0 || decode[i + 1] !== 1) { + return false; + } + } + return true; + }; + + ColorSpace.singletons = { + get gray() { + return shadow(this, 'gray', new DeviceGrayCS()); + }, + get rgb() { + return shadow(this, 'rgb', new DeviceRgbCS()); + }, + get cmyk() { + return shadow(this, 'cmyk', new DeviceCmykCS()); + } + }; + + return ColorSpace; +})(); + +/** + * Alternate color space handles both Separation and DeviceN color spaces. A + * Separation color space is actually just a DeviceN with one color component. + * Both color spaces use a tinting function to convert colors to a base color + * space. + */ +var AlternateCS = (function AlternateCSClosure() { + function AlternateCS(numComps, base, tintFn) { + this.name = 'Alternate'; + this.numComps = numComps; + this.defaultColor = new Float32Array(numComps); + for (var i = 0; i < numComps; ++i) { + this.defaultColor[i] = 1; + } + this.base = base; + this.tintFn = tintFn; + this.tmpBuf = new Float32Array(base.numComps); + } + + AlternateCS.prototype = { + getRgb: ColorSpace.prototype.getRgb, + getRgbItem: function AlternateCS_getRgbItem(src, srcOffset, + dest, destOffset) { + var tmpBuf = this.tmpBuf; + this.tintFn(src, srcOffset, tmpBuf, 0); + this.base.getRgbItem(tmpBuf, 0, dest, destOffset); + }, + getRgbBuffer: function AlternateCS_getRgbBuffer(src, srcOffset, count, + dest, destOffset, bits, + alpha01) { + var tintFn = this.tintFn; + var base = this.base; + var scale = 1 / ((1 << bits) - 1); + var baseNumComps = base.numComps; + var usesZeroToOneRange = base.usesZeroToOneRange; + var isPassthrough = (base.isPassthrough(8) || !usesZeroToOneRange) && + alpha01 === 0; + var pos = isPassthrough ? destOffset : 0; + var baseBuf = isPassthrough ? dest : new Uint8Array(baseNumComps * count); + var numComps = this.numComps; + + var scaled = new Float32Array(numComps); + var tinted = new Float32Array(baseNumComps); + var i, j; + if (usesZeroToOneRange) { + for (i = 0; i < count; i++) { + for (j = 0; j < numComps; j++) { + scaled[j] = src[srcOffset++] * scale; + } + tintFn(scaled, 0, tinted, 0); + for (j = 0; j < baseNumComps; j++) { + baseBuf[pos++] = tinted[j] * 255; + } + } + } else { + for (i = 0; i < count; i++) { + for (j = 0; j < numComps; j++) { + scaled[j] = src[srcOffset++] * scale; + } + tintFn(scaled, 0, tinted, 0); + base.getRgbItem(tinted, 0, baseBuf, pos); + pos += baseNumComps; + } + } + if (!isPassthrough) { + base.getRgbBuffer(baseBuf, 0, count, dest, destOffset, 8, alpha01); + } + }, + getOutputLength: function AlternateCS_getOutputLength(inputLength, + alpha01) { + return this.base.getOutputLength(inputLength * + this.base.numComps / this.numComps, + alpha01); + }, + isPassthrough: ColorSpace.prototype.isPassthrough, + fillRgb: ColorSpace.prototype.fillRgb, + isDefaultDecode: function AlternateCS_isDefaultDecode(decodeMap) { + return ColorSpace.isDefaultDecode(decodeMap, this.numComps); + }, + usesZeroToOneRange: true + }; + + return AlternateCS; +})(); + +var PatternCS = (function PatternCSClosure() { + function PatternCS(baseCS) { + this.name = 'Pattern'; + this.base = baseCS; + } + PatternCS.prototype = {}; + + return PatternCS; +})(); + +var IndexedCS = (function IndexedCSClosure() { + function IndexedCS(base, highVal, lookup) { + this.name = 'Indexed'; + this.numComps = 1; + this.defaultColor = new Uint8Array([0]); + this.base = base; + this.highVal = highVal; + + var baseNumComps = base.numComps; + var length = baseNumComps * highVal; + var lookupArray; + + if (isStream(lookup)) { + lookupArray = new Uint8Array(length); + var bytes = lookup.getBytes(length); + lookupArray.set(bytes); + } else if (isString(lookup)) { + lookupArray = new Uint8Array(length); + for (var i = 0; i < length; ++i) { + lookupArray[i] = lookup.charCodeAt(i); + } + } else if (lookup instanceof Uint8Array || lookup instanceof Array) { + lookupArray = lookup; + } else { + error('Unrecognized lookup table: ' + lookup); + } + this.lookup = lookupArray; + } + + IndexedCS.prototype = { + getRgb: ColorSpace.prototype.getRgb, + getRgbItem: function IndexedCS_getRgbItem(src, srcOffset, + dest, destOffset) { + var numComps = this.base.numComps; + var start = src[srcOffset] * numComps; + this.base.getRgbItem(this.lookup, start, dest, destOffset); + }, + getRgbBuffer: function IndexedCS_getRgbBuffer(src, srcOffset, count, + dest, destOffset, bits, + alpha01) { + var base = this.base; + var numComps = base.numComps; + var outputDelta = base.getOutputLength(numComps, alpha01); + var lookup = this.lookup; + + for (var i = 0; i < count; ++i) { + var lookupPos = src[srcOffset++] * numComps; + base.getRgbBuffer(lookup, lookupPos, 1, dest, destOffset, 8, alpha01); + destOffset += outputDelta; + } + }, + getOutputLength: function IndexedCS_getOutputLength(inputLength, alpha01) { + return this.base.getOutputLength(inputLength * this.base.numComps, + alpha01); + }, + isPassthrough: ColorSpace.prototype.isPassthrough, + fillRgb: ColorSpace.prototype.fillRgb, + isDefaultDecode: function IndexedCS_isDefaultDecode(decodeMap) { + // indexed color maps shouldn't be changed + return true; + }, + usesZeroToOneRange: true + }; + return IndexedCS; +})(); + +var DeviceGrayCS = (function DeviceGrayCSClosure() { + function DeviceGrayCS() { + this.name = 'DeviceGray'; + this.numComps = 1; + this.defaultColor = new Float32Array([0]); + } + + DeviceGrayCS.prototype = { + getRgb: ColorSpace.prototype.getRgb, + getRgbItem: function DeviceGrayCS_getRgbItem(src, srcOffset, + dest, destOffset) { + var c = (src[srcOffset] * 255) | 0; + c = c < 0 ? 0 : c > 255 ? 255 : c; + dest[destOffset] = dest[destOffset + 1] = dest[destOffset + 2] = c; + }, + getRgbBuffer: function DeviceGrayCS_getRgbBuffer(src, srcOffset, count, + dest, destOffset, bits, + alpha01) { + var scale = 255 / ((1 << bits) - 1); + var j = srcOffset, q = destOffset; + for (var i = 0; i < count; ++i) { + var c = (scale * src[j++]) | 0; + dest[q++] = c; + dest[q++] = c; + dest[q++] = c; + q += alpha01; + } + }, + getOutputLength: function DeviceGrayCS_getOutputLength(inputLength, + alpha01) { + return inputLength * (3 + alpha01); + }, + isPassthrough: ColorSpace.prototype.isPassthrough, + fillRgb: ColorSpace.prototype.fillRgb, + isDefaultDecode: function DeviceGrayCS_isDefaultDecode(decodeMap) { + return ColorSpace.isDefaultDecode(decodeMap, this.numComps); + }, + usesZeroToOneRange: true + }; + return DeviceGrayCS; +})(); + +var DeviceRgbCS = (function DeviceRgbCSClosure() { + function DeviceRgbCS() { + this.name = 'DeviceRGB'; + this.numComps = 3; + this.defaultColor = new Float32Array([0, 0, 0]); + } + DeviceRgbCS.prototype = { + getRgb: ColorSpace.prototype.getRgb, + getRgbItem: function DeviceRgbCS_getRgbItem(src, srcOffset, + dest, destOffset) { + var r = (src[srcOffset] * 255) | 0; + var g = (src[srcOffset + 1] * 255) | 0; + var b = (src[srcOffset + 2] * 255) | 0; + dest[destOffset] = r < 0 ? 0 : r > 255 ? 255 : r; + dest[destOffset + 1] = g < 0 ? 0 : g > 255 ? 255 : g; + dest[destOffset + 2] = b < 0 ? 0 : b > 255 ? 255 : b; + }, + getRgbBuffer: function DeviceRgbCS_getRgbBuffer(src, srcOffset, count, + dest, destOffset, bits, + alpha01) { + if (bits === 8 && alpha01 === 0) { + dest.set(src.subarray(srcOffset, srcOffset + count * 3), destOffset); + return; + } + var scale = 255 / ((1 << bits) - 1); + var j = srcOffset, q = destOffset; + for (var i = 0; i < count; ++i) { + dest[q++] = (scale * src[j++]) | 0; + dest[q++] = (scale * src[j++]) | 0; + dest[q++] = (scale * src[j++]) | 0; + q += alpha01; + } + }, + getOutputLength: function DeviceRgbCS_getOutputLength(inputLength, + alpha01) { + return (inputLength * (3 + alpha01) / 3) | 0; + }, + isPassthrough: function DeviceRgbCS_isPassthrough(bits) { + return bits === 8; + }, + fillRgb: ColorSpace.prototype.fillRgb, + isDefaultDecode: function DeviceRgbCS_isDefaultDecode(decodeMap) { + return ColorSpace.isDefaultDecode(decodeMap, this.numComps); + }, + usesZeroToOneRange: true + }; + return DeviceRgbCS; +})(); + +var DeviceCmykCS = (function DeviceCmykCSClosure() { + // The coefficients below was found using numerical analysis: the method of + // steepest descent for the sum((f_i - color_value_i)^2) for r/g/b colors, + // where color_value is the tabular value from the table of sampled RGB colors + // from CMYK US Web Coated (SWOP) colorspace, and f_i is the corresponding + // CMYK color conversion using the estimation below: + // f(A, B,.. N) = Acc+Bcm+Ccy+Dck+c+Fmm+Gmy+Hmk+Im+Jyy+Kyk+Ly+Mkk+Nk+255 + function convertToRgb(src, srcOffset, srcScale, dest, destOffset) { + var c = src[srcOffset + 0] * srcScale; + var m = src[srcOffset + 1] * srcScale; + var y = src[srcOffset + 2] * srcScale; + var k = src[srcOffset + 3] * srcScale; + + var r = + (c * (-4.387332384609988 * c + 54.48615194189176 * m + + 18.82290502165302 * y + 212.25662451639585 * k + + -285.2331026137004) + + m * (1.7149763477362134 * m - 5.6096736904047315 * y + + -17.873870861415444 * k - 5.497006427196366) + + y * (-2.5217340131683033 * y - 21.248923337353073 * k + + 17.5119270841813) + + k * (-21.86122147463605 * k - 189.48180835922747) + 255) | 0; + var g = + (c * (8.841041422036149 * c + 60.118027045597366 * m + + 6.871425592049007 * y + 31.159100130055922 * k + + -79.2970844816548) + + m * (-15.310361306967817 * m + 17.575251261109482 * y + + 131.35250912493976 * k - 190.9453302588951) + + y * (4.444339102852739 * y + 9.8632861493405 * k - 24.86741582555878) + + k * (-20.737325471181034 * k - 187.80453709719578) + 255) | 0; + var b = + (c * (0.8842522430003296 * c + 8.078677503112928 * m + + 30.89978309703729 * y - 0.23883238689178934 * k + + -14.183576799673286) + + m * (10.49593273432072 * m + 63.02378494754052 * y + + 50.606957656360734 * k - 112.23884253719248) + + y * (0.03296041114873217 * y + 115.60384449646641 * k + + -193.58209356861505) + + k * (-22.33816807309886 * k - 180.12613974708367) + 255) | 0; + + dest[destOffset] = r > 255 ? 255 : r < 0 ? 0 : r; + dest[destOffset + 1] = g > 255 ? 255 : g < 0 ? 0 : g; + dest[destOffset + 2] = b > 255 ? 255 : b < 0 ? 0 : b; + } + + function DeviceCmykCS() { + this.name = 'DeviceCMYK'; + this.numComps = 4; + this.defaultColor = new Float32Array([0, 0, 0, 1]); + } + DeviceCmykCS.prototype = { + getRgb: ColorSpace.prototype.getRgb, + getRgbItem: function DeviceCmykCS_getRgbItem(src, srcOffset, + dest, destOffset) { + convertToRgb(src, srcOffset, 1, dest, destOffset); + }, + getRgbBuffer: function DeviceCmykCS_getRgbBuffer(src, srcOffset, count, + dest, destOffset, bits, + alpha01) { + var scale = 1 / ((1 << bits) - 1); + for (var i = 0; i < count; i++) { + convertToRgb(src, srcOffset, scale, dest, destOffset); + srcOffset += 4; + destOffset += 3 + alpha01; + } + }, + getOutputLength: function DeviceCmykCS_getOutputLength(inputLength, + alpha01) { + return (inputLength / 4 * (3 + alpha01)) | 0; + }, + isPassthrough: ColorSpace.prototype.isPassthrough, + fillRgb: ColorSpace.prototype.fillRgb, + isDefaultDecode: function DeviceCmykCS_isDefaultDecode(decodeMap) { + return ColorSpace.isDefaultDecode(decodeMap, this.numComps); + }, + usesZeroToOneRange: true + }; + + return DeviceCmykCS; +})(); + +// +// CalGrayCS: Based on "PDF Reference, Sixth Ed", p.245 +// +var CalGrayCS = (function CalGrayCSClosure() { + function CalGrayCS(whitePoint, blackPoint, gamma) { + this.name = 'CalGray'; + this.numComps = 1; + this.defaultColor = new Float32Array([0]); + + if (!whitePoint) { + error('WhitePoint missing - required for color space CalGray'); + } + blackPoint = blackPoint || [0, 0, 0]; + gamma = gamma || 1; + + // Translate arguments to spec variables. + this.XW = whitePoint[0]; + this.YW = whitePoint[1]; + this.ZW = whitePoint[2]; + + this.XB = blackPoint[0]; + this.YB = blackPoint[1]; + this.ZB = blackPoint[2]; + + this.G = gamma; + + // Validate variables as per spec. + if (this.XW < 0 || this.ZW < 0 || this.YW !== 1) { + error('Invalid WhitePoint components for ' + this.name + + ', no fallback available'); + } + + if (this.XB < 0 || this.YB < 0 || this.ZB < 0) { + info('Invalid BlackPoint for ' + this.name + ', falling back to default'); + this.XB = this.YB = this.ZB = 0; + } + + if (this.XB !== 0 || this.YB !== 0 || this.ZB !== 0) { + warn(this.name + ', BlackPoint: XB: ' + this.XB + ', YB: ' + this.YB + + ', ZB: ' + this.ZB + ', only default values are supported.'); + } + + if (this.G < 1) { + info('Invalid Gamma: ' + this.G + ' for ' + this.name + + ', falling back to default'); + this.G = 1; + } + } + + function convertToRgb(cs, src, srcOffset, dest, destOffset, scale) { + // A represents a gray component of a calibrated gray space. + // A <---> AG in the spec + var A = src[srcOffset] * scale; + var AG = Math.pow(A, cs.G); + + // Computes L as per spec. ( = cs.YW * AG ) + // Except if other than default BlackPoint values are used. + var L = cs.YW * AG; + // http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html, Ch 4. + // Convert values to rgb range [0, 255]. + var val = Math.max(295.8 * Math.pow(L, 0.333333333333333333) - 40.8, 0) | 0; + dest[destOffset] = val; + dest[destOffset + 1] = val; + dest[destOffset + 2] = val; + } + + CalGrayCS.prototype = { + getRgb: ColorSpace.prototype.getRgb, + getRgbItem: function CalGrayCS_getRgbItem(src, srcOffset, + dest, destOffset) { + convertToRgb(this, src, srcOffset, dest, destOffset, 1); + }, + getRgbBuffer: function CalGrayCS_getRgbBuffer(src, srcOffset, count, + dest, destOffset, bits, + alpha01) { + var scale = 1 / ((1 << bits) - 1); + + for (var i = 0; i < count; ++i) { + convertToRgb(this, src, srcOffset, dest, destOffset, scale); + srcOffset += 1; + destOffset += 3 + alpha01; + } + }, + getOutputLength: function CalGrayCS_getOutputLength(inputLength, alpha01) { + return inputLength * (3 + alpha01); + }, + isPassthrough: ColorSpace.prototype.isPassthrough, + fillRgb: ColorSpace.prototype.fillRgb, + isDefaultDecode: function CalGrayCS_isDefaultDecode(decodeMap) { + return ColorSpace.isDefaultDecode(decodeMap, this.numComps); + }, + usesZeroToOneRange: true + }; + return CalGrayCS; +})(); + +// +// CalRGBCS: Based on "PDF Reference, Sixth Ed", p.247 +// +var CalRGBCS = (function CalRGBCSClosure() { + + // See http://www.brucelindbloom.com/index.html?Eqn_ChromAdapt.html for these + // matrices. + var BRADFORD_SCALE_MATRIX = new Float32Array([ + 0.8951, 0.2664, -0.1614, + -0.7502, 1.7135, 0.0367, + 0.0389, -0.0685, 1.0296]); + + var BRADFORD_SCALE_INVERSE_MATRIX = new Float32Array([ + 0.9869929, -0.1470543, 0.1599627, + 0.4323053, 0.5183603, 0.0492912, + -0.0085287, 0.0400428, 0.9684867]); + + // See http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html. + var SRGB_D65_XYZ_TO_RGB_MATRIX = new Float32Array([ + 3.2404542, -1.5371385, -0.4985314, + -0.9692660, 1.8760108, 0.0415560, + 0.0556434, -0.2040259, 1.0572252]); + + var FLAT_WHITEPOINT_MATRIX = new Float32Array([1, 1, 1]); + + var tempNormalizeMatrix = new Float32Array(3); + var tempConvertMatrix1 = new Float32Array(3); + var tempConvertMatrix2 = new Float32Array(3); + + var DECODE_L_CONSTANT = Math.pow(((8 + 16) / 116), 3) / 8.0; + + function CalRGBCS(whitePoint, blackPoint, gamma, matrix) { + this.name = 'CalRGB'; + this.numComps = 3; + this.defaultColor = new Float32Array(3); + + if (!whitePoint) { + error('WhitePoint missing - required for color space CalRGB'); + } + blackPoint = blackPoint || new Float32Array(3); + gamma = gamma || new Float32Array([1, 1, 1]); + matrix = matrix || new Float32Array([1, 0, 0, 0, 1, 0, 0, 0, 1]); + + // Translate arguments to spec variables. + var XW = whitePoint[0]; + var YW = whitePoint[1]; + var ZW = whitePoint[2]; + this.whitePoint = whitePoint; + + var XB = blackPoint[0]; + var YB = blackPoint[1]; + var ZB = blackPoint[2]; + this.blackPoint = blackPoint; + + this.GR = gamma[0]; + this.GG = gamma[1]; + this.GB = gamma[2]; + + this.MXA = matrix[0]; + this.MYA = matrix[1]; + this.MZA = matrix[2]; + this.MXB = matrix[3]; + this.MYB = matrix[4]; + this.MZB = matrix[5]; + this.MXC = matrix[6]; + this.MYC = matrix[7]; + this.MZC = matrix[8]; + + // Validate variables as per spec. + if (XW < 0 || ZW < 0 || YW !== 1) { + error('Invalid WhitePoint components for ' + this.name + + ', no fallback available'); + } + + if (XB < 0 || YB < 0 || ZB < 0) { + info('Invalid BlackPoint for ' + this.name + ' [' + XB + ', ' + YB + + ', ' + ZB + '], falling back to default'); + this.blackPoint = new Float32Array(3); + } + + if (this.GR < 0 || this.GG < 0 || this.GB < 0) { + info('Invalid Gamma [' + this.GR + ', ' + this.GG + ', ' + this.GB + + '] for ' + this.name + ', falling back to default'); + this.GR = this.GG = this.GB = 1; + } + + if (this.MXA < 0 || this.MYA < 0 || this.MZA < 0 || + this.MXB < 0 || this.MYB < 0 || this.MZB < 0 || + this.MXC < 0 || this.MYC < 0 || this.MZC < 0) { + info('Invalid Matrix for ' + this.name + ' [' + + this.MXA + ', ' + this.MYA + ', ' + this.MZA + + this.MXB + ', ' + this.MYB + ', ' + this.MZB + + this.MXC + ', ' + this.MYC + ', ' + this.MZC + + '], falling back to default'); + this.MXA = this.MYB = this.MZC = 1; + this.MXB = this.MYA = this.MZA = this.MXC = this.MYC = this.MZB = 0; + } + } + + function matrixProduct(a, b, result) { + result[0] = a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; + result[1] = a[3] * b[0] + a[4] * b[1] + a[5] * b[2]; + result[2] = a[6] * b[0] + a[7] * b[1] + a[8] * b[2]; + } + + function convertToFlat(sourceWhitePoint, LMS, result) { + result[0] = LMS[0] * 1 / sourceWhitePoint[0]; + result[1] = LMS[1] * 1 / sourceWhitePoint[1]; + result[2] = LMS[2] * 1 / sourceWhitePoint[2]; + } + + function convertToD65(sourceWhitePoint, LMS, result) { + var D65X = 0.95047; + var D65Y = 1; + var D65Z = 1.08883; + + result[0] = LMS[0] * D65X / sourceWhitePoint[0]; + result[1] = LMS[1] * D65Y / sourceWhitePoint[1]; + result[2] = LMS[2] * D65Z / sourceWhitePoint[2]; + } + + function sRGBTransferFunction(color) { + // See http://en.wikipedia.org/wiki/SRGB. + if (color <= 0.0031308){ + return adjustToRange(0, 1, 12.92 * color); + } + + return adjustToRange(0, 1, (1 + 0.055) * Math.pow(color, 1 / 2.4) - 0.055); + } + + function adjustToRange(min, max, value) { + return Math.max(min, Math.min(max, value)); + } + + function decodeL(L) { + if (L < 0) { + return -decodeL(-L); + } + + if (L > 8.0) { + return Math.pow(((L + 16) / 116), 3); + } + + return L * DECODE_L_CONSTANT; + } + + function compensateBlackPoint(sourceBlackPoint, XYZ_Flat, result) { + + // In case the blackPoint is already the default blackPoint then there is + // no need to do compensation. + if (sourceBlackPoint[0] === 0 && + sourceBlackPoint[1] === 0 && + sourceBlackPoint[2] === 0) { + result[0] = XYZ_Flat[0]; + result[1] = XYZ_Flat[1]; + result[2] = XYZ_Flat[2]; + return; + } + + // For the blackPoint calculation details, please see + // http://www.adobe.com/content/dam/Adobe/en/devnet/photoshop/sdk/ + // AdobeBPC.pdf. + // The destination blackPoint is the default blackPoint [0, 0, 0]. + var zeroDecodeL = decodeL(0); + + var X_DST = zeroDecodeL; + var X_SRC = decodeL(sourceBlackPoint[0]); + + var Y_DST = zeroDecodeL; + var Y_SRC = decodeL(sourceBlackPoint[1]); + + var Z_DST = zeroDecodeL; + var Z_SRC = decodeL(sourceBlackPoint[2]); + + var X_Scale = (1 - X_DST) / (1 - X_SRC); + var X_Offset = 1 - X_Scale; + + var Y_Scale = (1 - Y_DST) / (1 - Y_SRC); + var Y_Offset = 1 - Y_Scale; + + var Z_Scale = (1 - Z_DST) / (1 - Z_SRC); + var Z_Offset = 1 - Z_Scale; + + result[0] = XYZ_Flat[0] * X_Scale + X_Offset; + result[1] = XYZ_Flat[1] * Y_Scale + Y_Offset; + result[2] = XYZ_Flat[2] * Z_Scale + Z_Offset; + } + + function normalizeWhitePointToFlat(sourceWhitePoint, XYZ_In, result) { + + // In case the whitePoint is already flat then there is no need to do + // normalization. + if (sourceWhitePoint[0] === 1 && sourceWhitePoint[2] === 1) { + result[0] = XYZ_In[0]; + result[1] = XYZ_In[1]; + result[2] = XYZ_In[2]; + return; + } + + var LMS = result; + matrixProduct(BRADFORD_SCALE_MATRIX, XYZ_In, LMS); + + var LMS_Flat = tempNormalizeMatrix; + convertToFlat(sourceWhitePoint, LMS, LMS_Flat); + + matrixProduct(BRADFORD_SCALE_INVERSE_MATRIX, LMS_Flat, result); + } + + function normalizeWhitePointToD65(sourceWhitePoint, XYZ_In, result) { + + var LMS = result; + matrixProduct(BRADFORD_SCALE_MATRIX, XYZ_In, LMS); + + var LMS_D65 = tempNormalizeMatrix; + convertToD65(sourceWhitePoint, LMS, LMS_D65); + + matrixProduct(BRADFORD_SCALE_INVERSE_MATRIX, LMS_D65, result); + } + + function convertToRgb(cs, src, srcOffset, dest, destOffset, scale) { + // A, B and C represent a red, green and blue components of a calibrated + // rgb space. + var A = adjustToRange(0, 1, src[srcOffset] * scale); + var B = adjustToRange(0, 1, src[srcOffset + 1] * scale); + var C = adjustToRange(0, 1, src[srcOffset + 2] * scale); + + // A <---> AGR in the spec + // B <---> BGG in the spec + // C <---> CGB in the spec + var AGR = Math.pow(A, cs.GR); + var BGG = Math.pow(B, cs.GG); + var CGB = Math.pow(C, cs.GB); + + // Computes intermediate variables L, M, N as per spec. + // To decode X, Y, Z values map L, M, N directly to them. + var X = cs.MXA * AGR + cs.MXB * BGG + cs.MXC * CGB; + var Y = cs.MYA * AGR + cs.MYB * BGG + cs.MYC * CGB; + var Z = cs.MZA * AGR + cs.MZB * BGG + cs.MZC * CGB; + + // The following calculations are based on this document: + // http://www.adobe.com/content/dam/Adobe/en/devnet/photoshop/sdk/ + // AdobeBPC.pdf. + var XYZ = tempConvertMatrix1; + XYZ[0] = X; + XYZ[1] = Y; + XYZ[2] = Z; + var XYZ_Flat = tempConvertMatrix2; + + normalizeWhitePointToFlat(cs.whitePoint, XYZ, XYZ_Flat); + + var XYZ_Black = tempConvertMatrix1; + compensateBlackPoint(cs.blackPoint, XYZ_Flat, XYZ_Black); + + var XYZ_D65 = tempConvertMatrix2; + normalizeWhitePointToD65(FLAT_WHITEPOINT_MATRIX, XYZ_Black, XYZ_D65); + + var SRGB = tempConvertMatrix1; + matrixProduct(SRGB_D65_XYZ_TO_RGB_MATRIX, XYZ_D65, SRGB); + + var sR = sRGBTransferFunction(SRGB[0]); + var sG = sRGBTransferFunction(SRGB[1]); + var sB = sRGBTransferFunction(SRGB[2]); + + // Convert the values to rgb range [0, 255]. + dest[destOffset] = Math.round(sR * 255); + dest[destOffset + 1] = Math.round(sG * 255); + dest[destOffset + 2] = Math.round(sB * 255); + } + + CalRGBCS.prototype = { + getRgb: function CalRGBCS_getRgb(src, srcOffset) { + var rgb = new Uint8Array(3); + this.getRgbItem(src, srcOffset, rgb, 0); + return rgb; + }, + getRgbItem: function CalRGBCS_getRgbItem(src, srcOffset, + dest, destOffset) { + convertToRgb(this, src, srcOffset, dest, destOffset, 1); + }, + getRgbBuffer: function CalRGBCS_getRgbBuffer(src, srcOffset, count, + dest, destOffset, bits, + alpha01) { + var scale = 1 / ((1 << bits) - 1); + + for (var i = 0; i < count; ++i) { + convertToRgb(this, src, srcOffset, dest, destOffset, scale); + srcOffset += 3; + destOffset += 3 + alpha01; + } + }, + getOutputLength: function CalRGBCS_getOutputLength(inputLength, alpha01) { + return (inputLength * (3 + alpha01) / 3) | 0; + }, + isPassthrough: ColorSpace.prototype.isPassthrough, + fillRgb: ColorSpace.prototype.fillRgb, + isDefaultDecode: function CalRGBCS_isDefaultDecode(decodeMap) { + return ColorSpace.isDefaultDecode(decodeMap, this.numComps); + }, + usesZeroToOneRange: true + }; + return CalRGBCS; +})(); + +// +// LabCS: Based on "PDF Reference, Sixth Ed", p.250 +// +var LabCS = (function LabCSClosure() { + function LabCS(whitePoint, blackPoint, range) { + this.name = 'Lab'; + this.numComps = 3; + this.defaultColor = new Float32Array([0, 0, 0]); + + if (!whitePoint) { + error('WhitePoint missing - required for color space Lab'); + } + blackPoint = blackPoint || [0, 0, 0]; + range = range || [-100, 100, -100, 100]; + + // Translate args to spec variables + this.XW = whitePoint[0]; + this.YW = whitePoint[1]; + this.ZW = whitePoint[2]; + this.amin = range[0]; + this.amax = range[1]; + this.bmin = range[2]; + this.bmax = range[3]; + + // These are here just for completeness - the spec doesn't offer any + // formulas that use BlackPoint in Lab + this.XB = blackPoint[0]; + this.YB = blackPoint[1]; + this.ZB = blackPoint[2]; + + // Validate vars as per spec + if (this.XW < 0 || this.ZW < 0 || this.YW !== 1) { + error('Invalid WhitePoint components, no fallback available'); + } + + if (this.XB < 0 || this.YB < 0 || this.ZB < 0) { + info('Invalid BlackPoint, falling back to default'); + this.XB = this.YB = this.ZB = 0; + } + + if (this.amin > this.amax || this.bmin > this.bmax) { + info('Invalid Range, falling back to defaults'); + this.amin = -100; + this.amax = 100; + this.bmin = -100; + this.bmax = 100; + } + } + + // Function g(x) from spec + function fn_g(x) { + if (x >= 6 / 29) { + return x * x * x; + } else { + return (108 / 841) * (x - 4 / 29); + } + } + + function decode(value, high1, low2, high2) { + return low2 + (value) * (high2 - low2) / (high1); + } + + // If decoding is needed maxVal should be 2^bits per component - 1. + function convertToRgb(cs, src, srcOffset, maxVal, dest, destOffset) { + // XXX: Lab input is in the range of [0, 100], [amin, amax], [bmin, bmax] + // not the usual [0, 1]. If a command like setFillColor is used the src + // values will already be within the correct range. However, if we are + // converting an image we have to map the values to the correct range given + // above. + // Ls,as,bs <---> L*,a*,b* in the spec + var Ls = src[srcOffset]; + var as = src[srcOffset + 1]; + var bs = src[srcOffset + 2]; + if (maxVal !== false) { + Ls = decode(Ls, maxVal, 0, 100); + as = decode(as, maxVal, cs.amin, cs.amax); + bs = decode(bs, maxVal, cs.bmin, cs.bmax); + } + + // Adjust limits of 'as' and 'bs' + as = as > cs.amax ? cs.amax : as < cs.amin ? cs.amin : as; + bs = bs > cs.bmax ? cs.bmax : bs < cs.bmin ? cs.bmin : bs; + + // Computes intermediate variables X,Y,Z as per spec + var M = (Ls + 16) / 116; + var L = M + (as / 500); + var N = M - (bs / 200); + + var X = cs.XW * fn_g(L); + var Y = cs.YW * fn_g(M); + var Z = cs.ZW * fn_g(N); + + var r, g, b; + // Using different conversions for D50 and D65 white points, + // per http://www.color.org/srgb.pdf + if (cs.ZW < 1) { + // Assuming D50 (X=0.9642, Y=1.00, Z=0.8249) + r = X * 3.1339 + Y * -1.6170 + Z * -0.4906; + g = X * -0.9785 + Y * 1.9160 + Z * 0.0333; + b = X * 0.0720 + Y * -0.2290 + Z * 1.4057; + } else { + // Assuming D65 (X=0.9505, Y=1.00, Z=1.0888) + r = X * 3.2406 + Y * -1.5372 + Z * -0.4986; + g = X * -0.9689 + Y * 1.8758 + Z * 0.0415; + b = X * 0.0557 + Y * -0.2040 + Z * 1.0570; + } + // clamp color values to [0,1] range then convert to [0,255] range. + dest[destOffset] = r <= 0 ? 0 : r >= 1 ? 255 : Math.sqrt(r) * 255 | 0; + dest[destOffset + 1] = g <= 0 ? 0 : g >= 1 ? 255 : Math.sqrt(g) * 255 | 0; + dest[destOffset + 2] = b <= 0 ? 0 : b >= 1 ? 255 : Math.sqrt(b) * 255 | 0; + } + + LabCS.prototype = { + getRgb: ColorSpace.prototype.getRgb, + getRgbItem: function LabCS_getRgbItem(src, srcOffset, dest, destOffset) { + convertToRgb(this, src, srcOffset, false, dest, destOffset); + }, + getRgbBuffer: function LabCS_getRgbBuffer(src, srcOffset, count, + dest, destOffset, bits, + alpha01) { + var maxVal = (1 << bits) - 1; + for (var i = 0; i < count; i++) { + convertToRgb(this, src, srcOffset, maxVal, dest, destOffset); + srcOffset += 3; + destOffset += 3 + alpha01; + } + }, + getOutputLength: function LabCS_getOutputLength(inputLength, alpha01) { + return (inputLength * (3 + alpha01) / 3) | 0; + }, + isPassthrough: ColorSpace.prototype.isPassthrough, + fillRgb: ColorSpace.prototype.fillRgb, + isDefaultDecode: function LabCS_isDefaultDecode(decodeMap) { + // XXX: Decoding is handled with the lab conversion because of the strange + // ranges that are used. + return true; + }, + usesZeroToOneRange: false + }; + return LabCS; +})(); + +// TODO refactor to remove dependency on image.js +function _setCoreImage(coreImage_) { + coreImage = coreImage_; + PDFImage = coreImage_.PDFImage; +} +exports._setCoreImage = _setCoreImage; + +exports.ColorSpace = ColorSpace; + +// TODO refactor to remove dependency on colorspace.js +coreStream._setCoreColorSpace(exports); +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreImage = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreColorSpace, root.pdfjsCoreStream, + root.pdfjsCoreJpx); + } +}(this, function (exports, sharedUtil, corePrimitives, coreColorSpace, + coreStream, coreJpx) { + +var ImageKind = sharedUtil.ImageKind; +var assert = sharedUtil.assert; +var error = sharedUtil.error; +var info = sharedUtil.info; +var isArray = sharedUtil.isArray; +var warn = sharedUtil.warn; +var Name = corePrimitives.Name; +var isStream = corePrimitives.isStream; +var ColorSpace = coreColorSpace.ColorSpace; +var DecodeStream = coreStream.DecodeStream; +var Stream = coreStream.Stream; +var JpegStream = coreStream.JpegStream; +var JpxImage = coreJpx.JpxImage; var PDFImage = (function PDFImageClosure() { /** @@ -27241,6658 +34446,5313 @@ var PDFImage = (function PDFImageClosure() { return PDFImage; })(); +exports.PDFImage = PDFImage; -// The Metrics object contains glyph widths (in glyph space units). -// As per PDF spec, for most fonts (Type 3 being an exception) a glyph -// space unit corresponds to 1/1000th of text space unit. -var Metrics = { - 'Courier': 600, - 'Courier-Bold': 600, - 'Courier-BoldOblique': 600, - 'Courier-Oblique': 600, - 'Helvetica' : { - 'space': 278, - 'exclam': 278, - 'quotedbl': 355, - 'numbersign': 556, - 'dollar': 556, - 'percent': 889, - 'ampersand': 667, - 'quoteright': 222, - 'parenleft': 333, - 'parenright': 333, - 'asterisk': 389, - 'plus': 584, - 'comma': 278, - 'hyphen': 333, - 'period': 278, - 'slash': 278, - 'zero': 556, - 'one': 556, - 'two': 556, - 'three': 556, - 'four': 556, - 'five': 556, - 'six': 556, - 'seven': 556, - 'eight': 556, - 'nine': 556, - 'colon': 278, - 'semicolon': 278, - 'less': 584, - 'equal': 584, - 'greater': 584, - 'question': 556, - 'at': 1015, - 'A': 667, - 'B': 667, - 'C': 722, - 'D': 722, - 'E': 667, - 'F': 611, - 'G': 778, - 'H': 722, - 'I': 278, - 'J': 500, - 'K': 667, - 'L': 556, - 'M': 833, - 'N': 722, - 'O': 778, - 'P': 667, - 'Q': 778, - 'R': 722, - 'S': 667, - 'T': 611, - 'U': 722, - 'V': 667, - 'W': 944, - 'X': 667, - 'Y': 667, - 'Z': 611, - 'bracketleft': 278, - 'backslash': 278, - 'bracketright': 278, - 'asciicircum': 469, - 'underscore': 556, - 'quoteleft': 222, - 'a': 556, - 'b': 556, - 'c': 500, - 'd': 556, - 'e': 556, - 'f': 278, - 'g': 556, - 'h': 556, - 'i': 222, - 'j': 222, - 'k': 500, - 'l': 222, - 'm': 833, - 'n': 556, - 'o': 556, - 'p': 556, - 'q': 556, - 'r': 333, - 's': 500, - 't': 278, - 'u': 556, - 'v': 500, - 'w': 722, - 'x': 500, - 'y': 500, - 'z': 500, - 'braceleft': 334, - 'bar': 260, - 'braceright': 334, - 'asciitilde': 584, - 'exclamdown': 333, - 'cent': 556, - 'sterling': 556, - 'fraction': 167, - 'yen': 556, - 'florin': 556, - 'section': 556, - 'currency': 556, - 'quotesingle': 191, - 'quotedblleft': 333, - 'guillemotleft': 556, - 'guilsinglleft': 333, - 'guilsinglright': 333, - 'fi': 500, - 'fl': 500, - 'endash': 556, - 'dagger': 556, - 'daggerdbl': 556, - 'periodcentered': 278, - 'paragraph': 537, - 'bullet': 350, - 'quotesinglbase': 222, - 'quotedblbase': 333, - 'quotedblright': 333, - 'guillemotright': 556, - 'ellipsis': 1000, - 'perthousand': 1000, - 'questiondown': 611, - 'grave': 333, - 'acute': 333, - 'circumflex': 333, - 'tilde': 333, - 'macron': 333, - 'breve': 333, - 'dotaccent': 333, - 'dieresis': 333, - 'ring': 333, - 'cedilla': 333, - 'hungarumlaut': 333, - 'ogonek': 333, - 'caron': 333, - 'emdash': 1000, - 'AE': 1000, - 'ordfeminine': 370, - 'Lslash': 556, - 'Oslash': 778, - 'OE': 1000, - 'ordmasculine': 365, - 'ae': 889, - 'dotlessi': 278, - 'lslash': 222, - 'oslash': 611, - 'oe': 944, - 'germandbls': 611, - 'Idieresis': 278, - 'eacute': 556, - 'abreve': 556, - 'uhungarumlaut': 556, - 'ecaron': 556, - 'Ydieresis': 667, - 'divide': 584, - 'Yacute': 667, - 'Acircumflex': 667, - 'aacute': 556, - 'Ucircumflex': 722, - 'yacute': 500, - 'scommaaccent': 500, - 'ecircumflex': 556, - 'Uring': 722, - 'Udieresis': 722, - 'aogonek': 556, - 'Uacute': 722, - 'uogonek': 556, - 'Edieresis': 667, - 'Dcroat': 722, - 'commaaccent': 250, - 'copyright': 737, - 'Emacron': 667, - 'ccaron': 500, - 'aring': 556, - 'Ncommaaccent': 722, - 'lacute': 222, - 'agrave': 556, - 'Tcommaaccent': 611, - 'Cacute': 722, - 'atilde': 556, - 'Edotaccent': 667, - 'scaron': 500, - 'scedilla': 500, - 'iacute': 278, - 'lozenge': 471, - 'Rcaron': 722, - 'Gcommaaccent': 778, - 'ucircumflex': 556, - 'acircumflex': 556, - 'Amacron': 667, - 'rcaron': 333, - 'ccedilla': 500, - 'Zdotaccent': 611, - 'Thorn': 667, - 'Omacron': 778, - 'Racute': 722, - 'Sacute': 667, - 'dcaron': 643, - 'Umacron': 722, - 'uring': 556, - 'threesuperior': 333, - 'Ograve': 778, - 'Agrave': 667, - 'Abreve': 667, - 'multiply': 584, - 'uacute': 556, - 'Tcaron': 611, - 'partialdiff': 476, - 'ydieresis': 500, - 'Nacute': 722, - 'icircumflex': 278, - 'Ecircumflex': 667, - 'adieresis': 556, - 'edieresis': 556, - 'cacute': 500, - 'nacute': 556, - 'umacron': 556, - 'Ncaron': 722, - 'Iacute': 278, - 'plusminus': 584, - 'brokenbar': 260, - 'registered': 737, - 'Gbreve': 778, - 'Idotaccent': 278, - 'summation': 600, - 'Egrave': 667, - 'racute': 333, - 'omacron': 556, - 'Zacute': 611, - 'Zcaron': 611, - 'greaterequal': 549, - 'Eth': 722, - 'Ccedilla': 722, - 'lcommaaccent': 222, - 'tcaron': 317, - 'eogonek': 556, - 'Uogonek': 722, - 'Aacute': 667, - 'Adieresis': 667, - 'egrave': 556, - 'zacute': 500, - 'iogonek': 222, - 'Oacute': 778, - 'oacute': 556, - 'amacron': 556, - 'sacute': 500, - 'idieresis': 278, - 'Ocircumflex': 778, - 'Ugrave': 722, - 'Delta': 612, - 'thorn': 556, - 'twosuperior': 333, - 'Odieresis': 778, - 'mu': 556, - 'igrave': 278, - 'ohungarumlaut': 556, - 'Eogonek': 667, - 'dcroat': 556, - 'threequarters': 834, - 'Scedilla': 667, - 'lcaron': 299, - 'Kcommaaccent': 667, - 'Lacute': 556, - 'trademark': 1000, - 'edotaccent': 556, - 'Igrave': 278, - 'Imacron': 278, - 'Lcaron': 556, - 'onehalf': 834, - 'lessequal': 549, - 'ocircumflex': 556, - 'ntilde': 556, - 'Uhungarumlaut': 722, - 'Eacute': 667, - 'emacron': 556, - 'gbreve': 556, - 'onequarter': 834, - 'Scaron': 667, - 'Scommaaccent': 667, - 'Ohungarumlaut': 778, - 'degree': 400, - 'ograve': 556, - 'Ccaron': 722, - 'ugrave': 556, - 'radical': 453, - 'Dcaron': 722, - 'rcommaaccent': 333, - 'Ntilde': 722, - 'otilde': 556, - 'Rcommaaccent': 722, - 'Lcommaaccent': 556, - 'Atilde': 667, - 'Aogonek': 667, - 'Aring': 667, - 'Otilde': 778, - 'zdotaccent': 500, - 'Ecaron': 667, - 'Iogonek': 278, - 'kcommaaccent': 500, - 'minus': 584, - 'Icircumflex': 278, - 'ncaron': 556, - 'tcommaaccent': 278, - 'logicalnot': 584, - 'odieresis': 556, - 'udieresis': 556, - 'notequal': 549, - 'gcommaaccent': 556, - 'eth': 556, - 'zcaron': 500, - 'ncommaaccent': 556, - 'onesuperior': 333, - 'imacron': 278, - 'Euro': 556 - }, - 'Helvetica-Bold': { - 'space': 278, - 'exclam': 333, - 'quotedbl': 474, - 'numbersign': 556, - 'dollar': 556, - 'percent': 889, - 'ampersand': 722, - 'quoteright': 278, - 'parenleft': 333, - 'parenright': 333, - 'asterisk': 389, - 'plus': 584, - 'comma': 278, - 'hyphen': 333, - 'period': 278, - 'slash': 278, - 'zero': 556, - 'one': 556, - 'two': 556, - 'three': 556, - 'four': 556, - 'five': 556, - 'six': 556, - 'seven': 556, - 'eight': 556, - 'nine': 556, - 'colon': 333, - 'semicolon': 333, - 'less': 584, - 'equal': 584, - 'greater': 584, - 'question': 611, - 'at': 975, - 'A': 722, - 'B': 722, - 'C': 722, - 'D': 722, - 'E': 667, - 'F': 611, - 'G': 778, - 'H': 722, - 'I': 278, - 'J': 556, - 'K': 722, - 'L': 611, - 'M': 833, - 'N': 722, - 'O': 778, - 'P': 667, - 'Q': 778, - 'R': 722, - 'S': 667, - 'T': 611, - 'U': 722, - 'V': 667, - 'W': 944, - 'X': 667, - 'Y': 667, - 'Z': 611, - 'bracketleft': 333, - 'backslash': 278, - 'bracketright': 333, - 'asciicircum': 584, - 'underscore': 556, - 'quoteleft': 278, - 'a': 556, - 'b': 611, - 'c': 556, - 'd': 611, - 'e': 556, - 'f': 333, - 'g': 611, - 'h': 611, - 'i': 278, - 'j': 278, - 'k': 556, - 'l': 278, - 'm': 889, - 'n': 611, - 'o': 611, - 'p': 611, - 'q': 611, - 'r': 389, - 's': 556, - 't': 333, - 'u': 611, - 'v': 556, - 'w': 778, - 'x': 556, - 'y': 556, - 'z': 500, - 'braceleft': 389, - 'bar': 280, - 'braceright': 389, - 'asciitilde': 584, - 'exclamdown': 333, - 'cent': 556, - 'sterling': 556, - 'fraction': 167, - 'yen': 556, - 'florin': 556, - 'section': 556, - 'currency': 556, - 'quotesingle': 238, - 'quotedblleft': 500, - 'guillemotleft': 556, - 'guilsinglleft': 333, - 'guilsinglright': 333, - 'fi': 611, - 'fl': 611, - 'endash': 556, - 'dagger': 556, - 'daggerdbl': 556, - 'periodcentered': 278, - 'paragraph': 556, - 'bullet': 350, - 'quotesinglbase': 278, - 'quotedblbase': 500, - 'quotedblright': 500, - 'guillemotright': 556, - 'ellipsis': 1000, - 'perthousand': 1000, - 'questiondown': 611, - 'grave': 333, - 'acute': 333, - 'circumflex': 333, - 'tilde': 333, - 'macron': 333, - 'breve': 333, - 'dotaccent': 333, - 'dieresis': 333, - 'ring': 333, - 'cedilla': 333, - 'hungarumlaut': 333, - 'ogonek': 333, - 'caron': 333, - 'emdash': 1000, - 'AE': 1000, - 'ordfeminine': 370, - 'Lslash': 611, - 'Oslash': 778, - 'OE': 1000, - 'ordmasculine': 365, - 'ae': 889, - 'dotlessi': 278, - 'lslash': 278, - 'oslash': 611, - 'oe': 944, - 'germandbls': 611, - 'Idieresis': 278, - 'eacute': 556, - 'abreve': 556, - 'uhungarumlaut': 611, - 'ecaron': 556, - 'Ydieresis': 667, - 'divide': 584, - 'Yacute': 667, - 'Acircumflex': 722, - 'aacute': 556, - 'Ucircumflex': 722, - 'yacute': 556, - 'scommaaccent': 556, - 'ecircumflex': 556, - 'Uring': 722, - 'Udieresis': 722, - 'aogonek': 556, - 'Uacute': 722, - 'uogonek': 611, - 'Edieresis': 667, - 'Dcroat': 722, - 'commaaccent': 250, - 'copyright': 737, - 'Emacron': 667, - 'ccaron': 556, - 'aring': 556, - 'Ncommaaccent': 722, - 'lacute': 278, - 'agrave': 556, - 'Tcommaaccent': 611, - 'Cacute': 722, - 'atilde': 556, - 'Edotaccent': 667, - 'scaron': 556, - 'scedilla': 556, - 'iacute': 278, - 'lozenge': 494, - 'Rcaron': 722, - 'Gcommaaccent': 778, - 'ucircumflex': 611, - 'acircumflex': 556, - 'Amacron': 722, - 'rcaron': 389, - 'ccedilla': 556, - 'Zdotaccent': 611, - 'Thorn': 667, - 'Omacron': 778, - 'Racute': 722, - 'Sacute': 667, - 'dcaron': 743, - 'Umacron': 722, - 'uring': 611, - 'threesuperior': 333, - 'Ograve': 778, - 'Agrave': 722, - 'Abreve': 722, - 'multiply': 584, - 'uacute': 611, - 'Tcaron': 611, - 'partialdiff': 494, - 'ydieresis': 556, - 'Nacute': 722, - 'icircumflex': 278, - 'Ecircumflex': 667, - 'adieresis': 556, - 'edieresis': 556, - 'cacute': 556, - 'nacute': 611, - 'umacron': 611, - 'Ncaron': 722, - 'Iacute': 278, - 'plusminus': 584, - 'brokenbar': 280, - 'registered': 737, - 'Gbreve': 778, - 'Idotaccent': 278, - 'summation': 600, - 'Egrave': 667, - 'racute': 389, - 'omacron': 611, - 'Zacute': 611, - 'Zcaron': 611, - 'greaterequal': 549, - 'Eth': 722, - 'Ccedilla': 722, - 'lcommaaccent': 278, - 'tcaron': 389, - 'eogonek': 556, - 'Uogonek': 722, - 'Aacute': 722, - 'Adieresis': 722, - 'egrave': 556, - 'zacute': 500, - 'iogonek': 278, - 'Oacute': 778, - 'oacute': 611, - 'amacron': 556, - 'sacute': 556, - 'idieresis': 278, - 'Ocircumflex': 778, - 'Ugrave': 722, - 'Delta': 612, - 'thorn': 611, - 'twosuperior': 333, - 'Odieresis': 778, - 'mu': 611, - 'igrave': 278, - 'ohungarumlaut': 611, - 'Eogonek': 667, - 'dcroat': 611, - 'threequarters': 834, - 'Scedilla': 667, - 'lcaron': 400, - 'Kcommaaccent': 722, - 'Lacute': 611, - 'trademark': 1000, - 'edotaccent': 556, - 'Igrave': 278, - 'Imacron': 278, - 'Lcaron': 611, - 'onehalf': 834, - 'lessequal': 549, - 'ocircumflex': 611, - 'ntilde': 611, - 'Uhungarumlaut': 722, - 'Eacute': 667, - 'emacron': 556, - 'gbreve': 611, - 'onequarter': 834, - 'Scaron': 667, - 'Scommaaccent': 667, - 'Ohungarumlaut': 778, - 'degree': 400, - 'ograve': 611, - 'Ccaron': 722, - 'ugrave': 611, - 'radical': 549, - 'Dcaron': 722, - 'rcommaaccent': 389, - 'Ntilde': 722, - 'otilde': 611, - 'Rcommaaccent': 722, - 'Lcommaaccent': 611, - 'Atilde': 722, - 'Aogonek': 722, - 'Aring': 722, - 'Otilde': 778, - 'zdotaccent': 500, - 'Ecaron': 667, - 'Iogonek': 278, - 'kcommaaccent': 556, - 'minus': 584, - 'Icircumflex': 278, - 'ncaron': 611, - 'tcommaaccent': 333, - 'logicalnot': 584, - 'odieresis': 611, - 'udieresis': 611, - 'notequal': 549, - 'gcommaaccent': 611, - 'eth': 611, - 'zcaron': 500, - 'ncommaaccent': 611, - 'onesuperior': 333, - 'imacron': 278, - 'Euro': 556 - }, - 'Helvetica-BoldOblique': { - 'space': 278, - 'exclam': 333, - 'quotedbl': 474, - 'numbersign': 556, - 'dollar': 556, - 'percent': 889, - 'ampersand': 722, - 'quoteright': 278, - 'parenleft': 333, - 'parenright': 333, - 'asterisk': 389, - 'plus': 584, - 'comma': 278, - 'hyphen': 333, - 'period': 278, - 'slash': 278, - 'zero': 556, - 'one': 556, - 'two': 556, - 'three': 556, - 'four': 556, - 'five': 556, - 'six': 556, - 'seven': 556, - 'eight': 556, - 'nine': 556, - 'colon': 333, - 'semicolon': 333, - 'less': 584, - 'equal': 584, - 'greater': 584, - 'question': 611, - 'at': 975, - 'A': 722, - 'B': 722, - 'C': 722, - 'D': 722, - 'E': 667, - 'F': 611, - 'G': 778, - 'H': 722, - 'I': 278, - 'J': 556, - 'K': 722, - 'L': 611, - 'M': 833, - 'N': 722, - 'O': 778, - 'P': 667, - 'Q': 778, - 'R': 722, - 'S': 667, - 'T': 611, - 'U': 722, - 'V': 667, - 'W': 944, - 'X': 667, - 'Y': 667, - 'Z': 611, - 'bracketleft': 333, - 'backslash': 278, - 'bracketright': 333, - 'asciicircum': 584, - 'underscore': 556, - 'quoteleft': 278, - 'a': 556, - 'b': 611, - 'c': 556, - 'd': 611, - 'e': 556, - 'f': 333, - 'g': 611, - 'h': 611, - 'i': 278, - 'j': 278, - 'k': 556, - 'l': 278, - 'm': 889, - 'n': 611, - 'o': 611, - 'p': 611, - 'q': 611, - 'r': 389, - 's': 556, - 't': 333, - 'u': 611, - 'v': 556, - 'w': 778, - 'x': 556, - 'y': 556, - 'z': 500, - 'braceleft': 389, - 'bar': 280, - 'braceright': 389, - 'asciitilde': 584, - 'exclamdown': 333, - 'cent': 556, - 'sterling': 556, - 'fraction': 167, - 'yen': 556, - 'florin': 556, - 'section': 556, - 'currency': 556, - 'quotesingle': 238, - 'quotedblleft': 500, - 'guillemotleft': 556, - 'guilsinglleft': 333, - 'guilsinglright': 333, - 'fi': 611, - 'fl': 611, - 'endash': 556, - 'dagger': 556, - 'daggerdbl': 556, - 'periodcentered': 278, - 'paragraph': 556, - 'bullet': 350, - 'quotesinglbase': 278, - 'quotedblbase': 500, - 'quotedblright': 500, - 'guillemotright': 556, - 'ellipsis': 1000, - 'perthousand': 1000, - 'questiondown': 611, - 'grave': 333, - 'acute': 333, - 'circumflex': 333, - 'tilde': 333, - 'macron': 333, - 'breve': 333, - 'dotaccent': 333, - 'dieresis': 333, - 'ring': 333, - 'cedilla': 333, - 'hungarumlaut': 333, - 'ogonek': 333, - 'caron': 333, - 'emdash': 1000, - 'AE': 1000, - 'ordfeminine': 370, - 'Lslash': 611, - 'Oslash': 778, - 'OE': 1000, - 'ordmasculine': 365, - 'ae': 889, - 'dotlessi': 278, - 'lslash': 278, - 'oslash': 611, - 'oe': 944, - 'germandbls': 611, - 'Idieresis': 278, - 'eacute': 556, - 'abreve': 556, - 'uhungarumlaut': 611, - 'ecaron': 556, - 'Ydieresis': 667, - 'divide': 584, - 'Yacute': 667, - 'Acircumflex': 722, - 'aacute': 556, - 'Ucircumflex': 722, - 'yacute': 556, - 'scommaaccent': 556, - 'ecircumflex': 556, - 'Uring': 722, - 'Udieresis': 722, - 'aogonek': 556, - 'Uacute': 722, - 'uogonek': 611, - 'Edieresis': 667, - 'Dcroat': 722, - 'commaaccent': 250, - 'copyright': 737, - 'Emacron': 667, - 'ccaron': 556, - 'aring': 556, - 'Ncommaaccent': 722, - 'lacute': 278, - 'agrave': 556, - 'Tcommaaccent': 611, - 'Cacute': 722, - 'atilde': 556, - 'Edotaccent': 667, - 'scaron': 556, - 'scedilla': 556, - 'iacute': 278, - 'lozenge': 494, - 'Rcaron': 722, - 'Gcommaaccent': 778, - 'ucircumflex': 611, - 'acircumflex': 556, - 'Amacron': 722, - 'rcaron': 389, - 'ccedilla': 556, - 'Zdotaccent': 611, - 'Thorn': 667, - 'Omacron': 778, - 'Racute': 722, - 'Sacute': 667, - 'dcaron': 743, - 'Umacron': 722, - 'uring': 611, - 'threesuperior': 333, - 'Ograve': 778, - 'Agrave': 722, - 'Abreve': 722, - 'multiply': 584, - 'uacute': 611, - 'Tcaron': 611, - 'partialdiff': 494, - 'ydieresis': 556, - 'Nacute': 722, - 'icircumflex': 278, - 'Ecircumflex': 667, - 'adieresis': 556, - 'edieresis': 556, - 'cacute': 556, - 'nacute': 611, - 'umacron': 611, - 'Ncaron': 722, - 'Iacute': 278, - 'plusminus': 584, - 'brokenbar': 280, - 'registered': 737, - 'Gbreve': 778, - 'Idotaccent': 278, - 'summation': 600, - 'Egrave': 667, - 'racute': 389, - 'omacron': 611, - 'Zacute': 611, - 'Zcaron': 611, - 'greaterequal': 549, - 'Eth': 722, - 'Ccedilla': 722, - 'lcommaaccent': 278, - 'tcaron': 389, - 'eogonek': 556, - 'Uogonek': 722, - 'Aacute': 722, - 'Adieresis': 722, - 'egrave': 556, - 'zacute': 500, - 'iogonek': 278, - 'Oacute': 778, - 'oacute': 611, - 'amacron': 556, - 'sacute': 556, - 'idieresis': 278, - 'Ocircumflex': 778, - 'Ugrave': 722, - 'Delta': 612, - 'thorn': 611, - 'twosuperior': 333, - 'Odieresis': 778, - 'mu': 611, - 'igrave': 278, - 'ohungarumlaut': 611, - 'Eogonek': 667, - 'dcroat': 611, - 'threequarters': 834, - 'Scedilla': 667, - 'lcaron': 400, - 'Kcommaaccent': 722, - 'Lacute': 611, - 'trademark': 1000, - 'edotaccent': 556, - 'Igrave': 278, - 'Imacron': 278, - 'Lcaron': 611, - 'onehalf': 834, - 'lessequal': 549, - 'ocircumflex': 611, - 'ntilde': 611, - 'Uhungarumlaut': 722, - 'Eacute': 667, - 'emacron': 556, - 'gbreve': 611, - 'onequarter': 834, - 'Scaron': 667, - 'Scommaaccent': 667, - 'Ohungarumlaut': 778, - 'degree': 400, - 'ograve': 611, - 'Ccaron': 722, - 'ugrave': 611, - 'radical': 549, - 'Dcaron': 722, - 'rcommaaccent': 389, - 'Ntilde': 722, - 'otilde': 611, - 'Rcommaaccent': 722, - 'Lcommaaccent': 611, - 'Atilde': 722, - 'Aogonek': 722, - 'Aring': 722, - 'Otilde': 778, - 'zdotaccent': 500, - 'Ecaron': 667, - 'Iogonek': 278, - 'kcommaaccent': 556, - 'minus': 584, - 'Icircumflex': 278, - 'ncaron': 611, - 'tcommaaccent': 333, - 'logicalnot': 584, - 'odieresis': 611, - 'udieresis': 611, - 'notequal': 549, - 'gcommaaccent': 611, - 'eth': 611, - 'zcaron': 500, - 'ncommaaccent': 611, - 'onesuperior': 333, - 'imacron': 278, - 'Euro': 556 - }, - 'Helvetica-Oblique' : { - 'space': 278, - 'exclam': 278, - 'quotedbl': 355, - 'numbersign': 556, - 'dollar': 556, - 'percent': 889, - 'ampersand': 667, - 'quoteright': 222, - 'parenleft': 333, - 'parenright': 333, - 'asterisk': 389, - 'plus': 584, - 'comma': 278, - 'hyphen': 333, - 'period': 278, - 'slash': 278, - 'zero': 556, - 'one': 556, - 'two': 556, - 'three': 556, - 'four': 556, - 'five': 556, - 'six': 556, - 'seven': 556, - 'eight': 556, - 'nine': 556, - 'colon': 278, - 'semicolon': 278, - 'less': 584, - 'equal': 584, - 'greater': 584, - 'question': 556, - 'at': 1015, - 'A': 667, - 'B': 667, - 'C': 722, - 'D': 722, - 'E': 667, - 'F': 611, - 'G': 778, - 'H': 722, - 'I': 278, - 'J': 500, - 'K': 667, - 'L': 556, - 'M': 833, - 'N': 722, - 'O': 778, - 'P': 667, - 'Q': 778, - 'R': 722, - 'S': 667, - 'T': 611, - 'U': 722, - 'V': 667, - 'W': 944, - 'X': 667, - 'Y': 667, - 'Z': 611, - 'bracketleft': 278, - 'backslash': 278, - 'bracketright': 278, - 'asciicircum': 469, - 'underscore': 556, - 'quoteleft': 222, - 'a': 556, - 'b': 556, - 'c': 500, - 'd': 556, - 'e': 556, - 'f': 278, - 'g': 556, - 'h': 556, - 'i': 222, - 'j': 222, - 'k': 500, - 'l': 222, - 'm': 833, - 'n': 556, - 'o': 556, - 'p': 556, - 'q': 556, - 'r': 333, - 's': 500, - 't': 278, - 'u': 556, - 'v': 500, - 'w': 722, - 'x': 500, - 'y': 500, - 'z': 500, - 'braceleft': 334, - 'bar': 260, - 'braceright': 334, - 'asciitilde': 584, - 'exclamdown': 333, - 'cent': 556, - 'sterling': 556, - 'fraction': 167, - 'yen': 556, - 'florin': 556, - 'section': 556, - 'currency': 556, - 'quotesingle': 191, - 'quotedblleft': 333, - 'guillemotleft': 556, - 'guilsinglleft': 333, - 'guilsinglright': 333, - 'fi': 500, - 'fl': 500, - 'endash': 556, - 'dagger': 556, - 'daggerdbl': 556, - 'periodcentered': 278, - 'paragraph': 537, - 'bullet': 350, - 'quotesinglbase': 222, - 'quotedblbase': 333, - 'quotedblright': 333, - 'guillemotright': 556, - 'ellipsis': 1000, - 'perthousand': 1000, - 'questiondown': 611, - 'grave': 333, - 'acute': 333, - 'circumflex': 333, - 'tilde': 333, - 'macron': 333, - 'breve': 333, - 'dotaccent': 333, - 'dieresis': 333, - 'ring': 333, - 'cedilla': 333, - 'hungarumlaut': 333, - 'ogonek': 333, - 'caron': 333, - 'emdash': 1000, - 'AE': 1000, - 'ordfeminine': 370, - 'Lslash': 556, - 'Oslash': 778, - 'OE': 1000, - 'ordmasculine': 365, - 'ae': 889, - 'dotlessi': 278, - 'lslash': 222, - 'oslash': 611, - 'oe': 944, - 'germandbls': 611, - 'Idieresis': 278, - 'eacute': 556, - 'abreve': 556, - 'uhungarumlaut': 556, - 'ecaron': 556, - 'Ydieresis': 667, - 'divide': 584, - 'Yacute': 667, - 'Acircumflex': 667, - 'aacute': 556, - 'Ucircumflex': 722, - 'yacute': 500, - 'scommaaccent': 500, - 'ecircumflex': 556, - 'Uring': 722, - 'Udieresis': 722, - 'aogonek': 556, - 'Uacute': 722, - 'uogonek': 556, - 'Edieresis': 667, - 'Dcroat': 722, - 'commaaccent': 250, - 'copyright': 737, - 'Emacron': 667, - 'ccaron': 500, - 'aring': 556, - 'Ncommaaccent': 722, - 'lacute': 222, - 'agrave': 556, - 'Tcommaaccent': 611, - 'Cacute': 722, - 'atilde': 556, - 'Edotaccent': 667, - 'scaron': 500, - 'scedilla': 500, - 'iacute': 278, - 'lozenge': 471, - 'Rcaron': 722, - 'Gcommaaccent': 778, - 'ucircumflex': 556, - 'acircumflex': 556, - 'Amacron': 667, - 'rcaron': 333, - 'ccedilla': 500, - 'Zdotaccent': 611, - 'Thorn': 667, - 'Omacron': 778, - 'Racute': 722, - 'Sacute': 667, - 'dcaron': 643, - 'Umacron': 722, - 'uring': 556, - 'threesuperior': 333, - 'Ograve': 778, - 'Agrave': 667, - 'Abreve': 667, - 'multiply': 584, - 'uacute': 556, - 'Tcaron': 611, - 'partialdiff': 476, - 'ydieresis': 500, - 'Nacute': 722, - 'icircumflex': 278, - 'Ecircumflex': 667, - 'adieresis': 556, - 'edieresis': 556, - 'cacute': 500, - 'nacute': 556, - 'umacron': 556, - 'Ncaron': 722, - 'Iacute': 278, - 'plusminus': 584, - 'brokenbar': 260, - 'registered': 737, - 'Gbreve': 778, - 'Idotaccent': 278, - 'summation': 600, - 'Egrave': 667, - 'racute': 333, - 'omacron': 556, - 'Zacute': 611, - 'Zcaron': 611, - 'greaterequal': 549, - 'Eth': 722, - 'Ccedilla': 722, - 'lcommaaccent': 222, - 'tcaron': 317, - 'eogonek': 556, - 'Uogonek': 722, - 'Aacute': 667, - 'Adieresis': 667, - 'egrave': 556, - 'zacute': 500, - 'iogonek': 222, - 'Oacute': 778, - 'oacute': 556, - 'amacron': 556, - 'sacute': 500, - 'idieresis': 278, - 'Ocircumflex': 778, - 'Ugrave': 722, - 'Delta': 612, - 'thorn': 556, - 'twosuperior': 333, - 'Odieresis': 778, - 'mu': 556, - 'igrave': 278, - 'ohungarumlaut': 556, - 'Eogonek': 667, - 'dcroat': 556, - 'threequarters': 834, - 'Scedilla': 667, - 'lcaron': 299, - 'Kcommaaccent': 667, - 'Lacute': 556, - 'trademark': 1000, - 'edotaccent': 556, - 'Igrave': 278, - 'Imacron': 278, - 'Lcaron': 556, - 'onehalf': 834, - 'lessequal': 549, - 'ocircumflex': 556, - 'ntilde': 556, - 'Uhungarumlaut': 722, - 'Eacute': 667, - 'emacron': 556, - 'gbreve': 556, - 'onequarter': 834, - 'Scaron': 667, - 'Scommaaccent': 667, - 'Ohungarumlaut': 778, - 'degree': 400, - 'ograve': 556, - 'Ccaron': 722, - 'ugrave': 556, - 'radical': 453, - 'Dcaron': 722, - 'rcommaaccent': 333, - 'Ntilde': 722, - 'otilde': 556, - 'Rcommaaccent': 722, - 'Lcommaaccent': 556, - 'Atilde': 667, - 'Aogonek': 667, - 'Aring': 667, - 'Otilde': 778, - 'zdotaccent': 500, - 'Ecaron': 667, - 'Iogonek': 278, - 'kcommaaccent': 500, - 'minus': 584, - 'Icircumflex': 278, - 'ncaron': 556, - 'tcommaaccent': 278, - 'logicalnot': 584, - 'odieresis': 556, - 'udieresis': 556, - 'notequal': 549, - 'gcommaaccent': 556, - 'eth': 556, - 'zcaron': 500, - 'ncommaaccent': 556, - 'onesuperior': 333, - 'imacron': 278, - 'Euro': 556 - }, - 'Symbol': { - 'space': 250, - 'exclam': 333, - 'universal': 713, - 'numbersign': 500, - 'existential': 549, - 'percent': 833, - 'ampersand': 778, - 'suchthat': 439, - 'parenleft': 333, - 'parenright': 333, - 'asteriskmath': 500, - 'plus': 549, - 'comma': 250, - 'minus': 549, - 'period': 250, - 'slash': 278, - 'zero': 500, - 'one': 500, - 'two': 500, - 'three': 500, - 'four': 500, - 'five': 500, - 'six': 500, - 'seven': 500, - 'eight': 500, - 'nine': 500, - 'colon': 278, - 'semicolon': 278, - 'less': 549, - 'equal': 549, - 'greater': 549, - 'question': 444, - 'congruent': 549, - 'Alpha': 722, - 'Beta': 667, - 'Chi': 722, - 'Delta': 612, - 'Epsilon': 611, - 'Phi': 763, - 'Gamma': 603, - 'Eta': 722, - 'Iota': 333, - 'theta1': 631, - 'Kappa': 722, - 'Lambda': 686, - 'Mu': 889, - 'Nu': 722, - 'Omicron': 722, - 'Pi': 768, - 'Theta': 741, - 'Rho': 556, - 'Sigma': 592, - 'Tau': 611, - 'Upsilon': 690, - 'sigma1': 439, - 'Omega': 768, - 'Xi': 645, - 'Psi': 795, - 'Zeta': 611, - 'bracketleft': 333, - 'therefore': 863, - 'bracketright': 333, - 'perpendicular': 658, - 'underscore': 500, - 'radicalex': 500, - 'alpha': 631, - 'beta': 549, - 'chi': 549, - 'delta': 494, - 'epsilon': 439, - 'phi': 521, - 'gamma': 411, - 'eta': 603, - 'iota': 329, - 'phi1': 603, - 'kappa': 549, - 'lambda': 549, - 'mu': 576, - 'nu': 521, - 'omicron': 549, - 'pi': 549, - 'theta': 521, - 'rho': 549, - 'sigma': 603, - 'tau': 439, - 'upsilon': 576, - 'omega1': 713, - 'omega': 686, - 'xi': 493, - 'psi': 686, - 'zeta': 494, - 'braceleft': 480, - 'bar': 200, - 'braceright': 480, - 'similar': 549, - 'Euro': 750, - 'Upsilon1': 620, - 'minute': 247, - 'lessequal': 549, - 'fraction': 167, - 'infinity': 713, - 'florin': 500, - 'club': 753, - 'diamond': 753, - 'heart': 753, - 'spade': 753, - 'arrowboth': 1042, - 'arrowleft': 987, - 'arrowup': 603, - 'arrowright': 987, - 'arrowdown': 603, - 'degree': 400, - 'plusminus': 549, - 'second': 411, - 'greaterequal': 549, - 'multiply': 549, - 'proportional': 713, - 'partialdiff': 494, - 'bullet': 460, - 'divide': 549, - 'notequal': 549, - 'equivalence': 549, - 'approxequal': 549, - 'ellipsis': 1000, - 'arrowvertex': 603, - 'arrowhorizex': 1000, - 'carriagereturn': 658, - 'aleph': 823, - 'Ifraktur': 686, - 'Rfraktur': 795, - 'weierstrass': 987, - 'circlemultiply': 768, - 'circleplus': 768, - 'emptyset': 823, - 'intersection': 768, - 'union': 768, - 'propersuperset': 713, - 'reflexsuperset': 713, - 'notsubset': 713, - 'propersubset': 713, - 'reflexsubset': 713, - 'element': 713, - 'notelement': 713, - 'angle': 768, - 'gradient': 713, - 'registerserif': 790, - 'copyrightserif': 790, - 'trademarkserif': 890, - 'product': 823, - 'radical': 549, - 'dotmath': 250, - 'logicalnot': 713, - 'logicaland': 603, - 'logicalor': 603, - 'arrowdblboth': 1042, - 'arrowdblleft': 987, - 'arrowdblup': 603, - 'arrowdblright': 987, - 'arrowdbldown': 603, - 'lozenge': 494, - 'angleleft': 329, - 'registersans': 790, - 'copyrightsans': 790, - 'trademarksans': 786, - 'summation': 713, - 'parenlefttp': 384, - 'parenleftex': 384, - 'parenleftbt': 384, - 'bracketlefttp': 384, - 'bracketleftex': 384, - 'bracketleftbt': 384, - 'bracelefttp': 494, - 'braceleftmid': 494, - 'braceleftbt': 494, - 'braceex': 494, - 'angleright': 329, - 'integral': 274, - 'integraltp': 686, - 'integralex': 686, - 'integralbt': 686, - 'parenrighttp': 384, - 'parenrightex': 384, - 'parenrightbt': 384, - 'bracketrighttp': 384, - 'bracketrightex': 384, - 'bracketrightbt': 384, - 'bracerighttp': 494, - 'bracerightmid': 494, - 'bracerightbt': 494, - 'apple': 790 - }, - 'Times-Roman': { - 'space': 250, - 'exclam': 333, - 'quotedbl': 408, - 'numbersign': 500, - 'dollar': 500, - 'percent': 833, - 'ampersand': 778, - 'quoteright': 333, - 'parenleft': 333, - 'parenright': 333, - 'asterisk': 500, - 'plus': 564, - 'comma': 250, - 'hyphen': 333, - 'period': 250, - 'slash': 278, - 'zero': 500, - 'one': 500, - 'two': 500, - 'three': 500, - 'four': 500, - 'five': 500, - 'six': 500, - 'seven': 500, - 'eight': 500, - 'nine': 500, - 'colon': 278, - 'semicolon': 278, - 'less': 564, - 'equal': 564, - 'greater': 564, - 'question': 444, - 'at': 921, - 'A': 722, - 'B': 667, - 'C': 667, - 'D': 722, - 'E': 611, - 'F': 556, - 'G': 722, - 'H': 722, - 'I': 333, - 'J': 389, - 'K': 722, - 'L': 611, - 'M': 889, - 'N': 722, - 'O': 722, - 'P': 556, - 'Q': 722, - 'R': 667, - 'S': 556, - 'T': 611, - 'U': 722, - 'V': 722, - 'W': 944, - 'X': 722, - 'Y': 722, - 'Z': 611, - 'bracketleft': 333, - 'backslash': 278, - 'bracketright': 333, - 'asciicircum': 469, - 'underscore': 500, - 'quoteleft': 333, - 'a': 444, - 'b': 500, - 'c': 444, - 'd': 500, - 'e': 444, - 'f': 333, - 'g': 500, - 'h': 500, - 'i': 278, - 'j': 278, - 'k': 500, - 'l': 278, - 'm': 778, - 'n': 500, - 'o': 500, - 'p': 500, - 'q': 500, - 'r': 333, - 's': 389, - 't': 278, - 'u': 500, - 'v': 500, - 'w': 722, - 'x': 500, - 'y': 500, - 'z': 444, - 'braceleft': 480, - 'bar': 200, - 'braceright': 480, - 'asciitilde': 541, - 'exclamdown': 333, - 'cent': 500, - 'sterling': 500, - 'fraction': 167, - 'yen': 500, - 'florin': 500, - 'section': 500, - 'currency': 500, - 'quotesingle': 180, - 'quotedblleft': 444, - 'guillemotleft': 500, - 'guilsinglleft': 333, - 'guilsinglright': 333, - 'fi': 556, - 'fl': 556, - 'endash': 500, - 'dagger': 500, - 'daggerdbl': 500, - 'periodcentered': 250, - 'paragraph': 453, - 'bullet': 350, - 'quotesinglbase': 333, - 'quotedblbase': 444, - 'quotedblright': 444, - 'guillemotright': 500, - 'ellipsis': 1000, - 'perthousand': 1000, - 'questiondown': 444, - 'grave': 333, - 'acute': 333, - 'circumflex': 333, - 'tilde': 333, - 'macron': 333, - 'breve': 333, - 'dotaccent': 333, - 'dieresis': 333, - 'ring': 333, - 'cedilla': 333, - 'hungarumlaut': 333, - 'ogonek': 333, - 'caron': 333, - 'emdash': 1000, - 'AE': 889, - 'ordfeminine': 276, - 'Lslash': 611, - 'Oslash': 722, - 'OE': 889, - 'ordmasculine': 310, - 'ae': 667, - 'dotlessi': 278, - 'lslash': 278, - 'oslash': 500, - 'oe': 722, - 'germandbls': 500, - 'Idieresis': 333, - 'eacute': 444, - 'abreve': 444, - 'uhungarumlaut': 500, - 'ecaron': 444, - 'Ydieresis': 722, - 'divide': 564, - 'Yacute': 722, - 'Acircumflex': 722, - 'aacute': 444, - 'Ucircumflex': 722, - 'yacute': 500, - 'scommaaccent': 389, - 'ecircumflex': 444, - 'Uring': 722, - 'Udieresis': 722, - 'aogonek': 444, - 'Uacute': 722, - 'uogonek': 500, - 'Edieresis': 611, - 'Dcroat': 722, - 'commaaccent': 250, - 'copyright': 760, - 'Emacron': 611, - 'ccaron': 444, - 'aring': 444, - 'Ncommaaccent': 722, - 'lacute': 278, - 'agrave': 444, - 'Tcommaaccent': 611, - 'Cacute': 667, - 'atilde': 444, - 'Edotaccent': 611, - 'scaron': 389, - 'scedilla': 389, - 'iacute': 278, - 'lozenge': 471, - 'Rcaron': 667, - 'Gcommaaccent': 722, - 'ucircumflex': 500, - 'acircumflex': 444, - 'Amacron': 722, - 'rcaron': 333, - 'ccedilla': 444, - 'Zdotaccent': 611, - 'Thorn': 556, - 'Omacron': 722, - 'Racute': 667, - 'Sacute': 556, - 'dcaron': 588, - 'Umacron': 722, - 'uring': 500, - 'threesuperior': 300, - 'Ograve': 722, - 'Agrave': 722, - 'Abreve': 722, - 'multiply': 564, - 'uacute': 500, - 'Tcaron': 611, - 'partialdiff': 476, - 'ydieresis': 500, - 'Nacute': 722, - 'icircumflex': 278, - 'Ecircumflex': 611, - 'adieresis': 444, - 'edieresis': 444, - 'cacute': 444, - 'nacute': 500, - 'umacron': 500, - 'Ncaron': 722, - 'Iacute': 333, - 'plusminus': 564, - 'brokenbar': 200, - 'registered': 760, - 'Gbreve': 722, - 'Idotaccent': 333, - 'summation': 600, - 'Egrave': 611, - 'racute': 333, - 'omacron': 500, - 'Zacute': 611, - 'Zcaron': 611, - 'greaterequal': 549, - 'Eth': 722, - 'Ccedilla': 667, - 'lcommaaccent': 278, - 'tcaron': 326, - 'eogonek': 444, - 'Uogonek': 722, - 'Aacute': 722, - 'Adieresis': 722, - 'egrave': 444, - 'zacute': 444, - 'iogonek': 278, - 'Oacute': 722, - 'oacute': 500, - 'amacron': 444, - 'sacute': 389, - 'idieresis': 278, - 'Ocircumflex': 722, - 'Ugrave': 722, - 'Delta': 612, - 'thorn': 500, - 'twosuperior': 300, - 'Odieresis': 722, - 'mu': 500, - 'igrave': 278, - 'ohungarumlaut': 500, - 'Eogonek': 611, - 'dcroat': 500, - 'threequarters': 750, - 'Scedilla': 556, - 'lcaron': 344, - 'Kcommaaccent': 722, - 'Lacute': 611, - 'trademark': 980, - 'edotaccent': 444, - 'Igrave': 333, - 'Imacron': 333, - 'Lcaron': 611, - 'onehalf': 750, - 'lessequal': 549, - 'ocircumflex': 500, - 'ntilde': 500, - 'Uhungarumlaut': 722, - 'Eacute': 611, - 'emacron': 444, - 'gbreve': 500, - 'onequarter': 750, - 'Scaron': 556, - 'Scommaaccent': 556, - 'Ohungarumlaut': 722, - 'degree': 400, - 'ograve': 500, - 'Ccaron': 667, - 'ugrave': 500, - 'radical': 453, - 'Dcaron': 722, - 'rcommaaccent': 333, - 'Ntilde': 722, - 'otilde': 500, - 'Rcommaaccent': 667, - 'Lcommaaccent': 611, - 'Atilde': 722, - 'Aogonek': 722, - 'Aring': 722, - 'Otilde': 722, - 'zdotaccent': 444, - 'Ecaron': 611, - 'Iogonek': 333, - 'kcommaaccent': 500, - 'minus': 564, - 'Icircumflex': 333, - 'ncaron': 500, - 'tcommaaccent': 278, - 'logicalnot': 564, - 'odieresis': 500, - 'udieresis': 500, - 'notequal': 549, - 'gcommaaccent': 500, - 'eth': 500, - 'zcaron': 444, - 'ncommaaccent': 500, - 'onesuperior': 300, - 'imacron': 278, - 'Euro': 500 - }, - 'Times-Bold': { - 'space': 250, - 'exclam': 333, - 'quotedbl': 555, - 'numbersign': 500, - 'dollar': 500, - 'percent': 1000, - 'ampersand': 833, - 'quoteright': 333, - 'parenleft': 333, - 'parenright': 333, - 'asterisk': 500, - 'plus': 570, - 'comma': 250, - 'hyphen': 333, - 'period': 250, - 'slash': 278, - 'zero': 500, - 'one': 500, - 'two': 500, - 'three': 500, - 'four': 500, - 'five': 500, - 'six': 500, - 'seven': 500, - 'eight': 500, - 'nine': 500, - 'colon': 333, - 'semicolon': 333, - 'less': 570, - 'equal': 570, - 'greater': 570, - 'question': 500, - 'at': 930, - 'A': 722, - 'B': 667, - 'C': 722, - 'D': 722, - 'E': 667, - 'F': 611, - 'G': 778, - 'H': 778, - 'I': 389, - 'J': 500, - 'K': 778, - 'L': 667, - 'M': 944, - 'N': 722, - 'O': 778, - 'P': 611, - 'Q': 778, - 'R': 722, - 'S': 556, - 'T': 667, - 'U': 722, - 'V': 722, - 'W': 1000, - 'X': 722, - 'Y': 722, - 'Z': 667, - 'bracketleft': 333, - 'backslash': 278, - 'bracketright': 333, - 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'Ccedilla': 667, - 'lcommaaccent': 278, - 'tcaron': 300, - 'eogonek': 444, - 'Uogonek': 722, - 'Aacute': 611, - 'Adieresis': 611, - 'egrave': 444, - 'zacute': 389, - 'iogonek': 278, - 'Oacute': 722, - 'oacute': 500, - 'amacron': 500, - 'sacute': 389, - 'idieresis': 278, - 'Ocircumflex': 722, - 'Ugrave': 722, - 'Delta': 612, - 'thorn': 500, - 'twosuperior': 300, - 'Odieresis': 722, - 'mu': 500, - 'igrave': 278, - 'ohungarumlaut': 500, - 'Eogonek': 611, - 'dcroat': 500, - 'threequarters': 750, - 'Scedilla': 500, - 'lcaron': 300, - 'Kcommaaccent': 667, - 'Lacute': 556, - 'trademark': 980, - 'edotaccent': 444, - 'Igrave': 333, - 'Imacron': 333, - 'Lcaron': 611, - 'onehalf': 750, - 'lessequal': 549, - 'ocircumflex': 500, - 'ntilde': 500, - 'Uhungarumlaut': 722, - 'Eacute': 611, - 'emacron': 444, - 'gbreve': 500, - 'onequarter': 750, - 'Scaron': 500, - 'Scommaaccent': 500, - 'Ohungarumlaut': 722, - 'degree': 400, - 'ograve': 500, - 'Ccaron': 667, - 'ugrave': 500, - 'radical': 453, - 'Dcaron': 722, - 'rcommaaccent': 389, - 'Ntilde': 667, - 'otilde': 500, - 'Rcommaaccent': 611, - 'Lcommaaccent': 556, - 'Atilde': 611, - 'Aogonek': 611, - 'Aring': 611, - 'Otilde': 722, - 'zdotaccent': 389, - 'Ecaron': 611, - 'Iogonek': 333, - 'kcommaaccent': 444, - 'minus': 675, - 'Icircumflex': 333, - 'ncaron': 500, - 'tcommaaccent': 278, - 'logicalnot': 675, - 'odieresis': 500, - 'udieresis': 500, - 'notequal': 549, - 'gcommaaccent': 500, - 'eth': 500, - 'zcaron': 389, - 'ncommaaccent': 500, - 'onesuperior': 300, - 'imacron': 278, - 'Euro': 500 - }, - 'ZapfDingbats': { - 'space': 278, - 'a1': 974, - 'a2': 961, - 'a202': 974, - 'a3': 980, - 'a4': 719, - 'a5': 789, - 'a119': 790, - 'a118': 791, - 'a117': 690, - 'a11': 960, - 'a12': 939, - 'a13': 549, - 'a14': 855, - 'a15': 911, - 'a16': 933, - 'a105': 911, - 'a17': 945, - 'a18': 974, - 'a19': 755, - 'a20': 846, - 'a21': 762, - 'a22': 761, - 'a23': 571, - 'a24': 677, - 'a25': 763, - 'a26': 760, - 'a27': 759, - 'a28': 754, - 'a6': 494, - 'a7': 552, - 'a8': 537, - 'a9': 577, - 'a10': 692, - 'a29': 786, - 'a30': 788, - 'a31': 788, - 'a32': 790, - 'a33': 793, - 'a34': 794, - 'a35': 816, - 'a36': 823, - 'a37': 789, - 'a38': 841, - 'a39': 823, - 'a40': 833, - 'a41': 816, - 'a42': 831, - 'a43': 923, - 'a44': 744, - 'a45': 723, - 'a46': 749, - 'a47': 790, - 'a48': 792, - 'a49': 695, - 'a50': 776, - 'a51': 768, - 'a52': 792, - 'a53': 759, - 'a54': 707, - 'a55': 708, - 'a56': 682, - 'a57': 701, - 'a58': 826, - 'a59': 815, - 'a60': 789, - 'a61': 789, - 'a62': 707, - 'a63': 687, - 'a64': 696, - 'a65': 689, - 'a66': 786, - 'a67': 787, - 'a68': 713, - 'a69': 791, - 'a70': 785, - 'a71': 791, - 'a72': 873, - 'a73': 761, - 'a74': 762, - 'a203': 762, - 'a75': 759, - 'a204': 759, - 'a76': 892, - 'a77': 892, - 'a78': 788, - 'a79': 784, - 'a81': 438, - 'a82': 138, - 'a83': 277, - 'a84': 415, - 'a97': 392, - 'a98': 392, - 'a99': 668, - 'a100': 668, - 'a89': 390, - 'a90': 390, - 'a93': 317, - 'a94': 317, - 'a91': 276, - 'a92': 276, - 'a205': 509, - 'a85': 509, - 'a206': 410, - 'a86': 410, - 'a87': 234, - 'a88': 234, - 'a95': 334, - 'a96': 334, - 'a101': 732, - 'a102': 544, - 'a103': 544, - 'a104': 910, - 'a106': 667, - 'a107': 760, - 'a108': 760, - 'a112': 776, - 'a111': 595, - 'a110': 694, - 'a109': 626, - 'a120': 788, - 'a121': 788, - 'a122': 788, - 'a123': 788, - 'a124': 788, - 'a125': 788, - 'a126': 788, - 'a127': 788, - 'a128': 788, - 'a129': 788, - 'a130': 788, - 'a131': 788, - 'a132': 788, - 'a133': 788, - 'a134': 788, - 'a135': 788, - 'a136': 788, - 'a137': 788, - 'a138': 788, - 'a139': 788, - 'a140': 788, - 'a141': 788, - 'a142': 788, - 'a143': 788, - 'a144': 788, - 'a145': 788, - 'a146': 788, - 'a147': 788, - 'a148': 788, - 'a149': 788, - 'a150': 788, - 'a151': 788, - 'a152': 788, - 'a153': 788, - 'a154': 788, - 'a155': 788, - 'a156': 788, - 'a157': 788, - 'a158': 788, - 'a159': 788, - 'a160': 894, - 'a161': 838, - 'a163': 1016, - 'a164': 458, - 'a196': 748, - 'a165': 924, - 'a192': 748, - 'a166': 918, - 'a167': 927, - 'a168': 928, - 'a169': 928, - 'a170': 834, - 'a171': 873, - 'a172': 828, - 'a173': 924, - 'a162': 924, - 'a174': 917, - 'a175': 930, - 'a176': 931, - 'a177': 463, - 'a178': 883, - 'a179': 836, - 'a193': 836, - 'a180': 867, - 'a199': 867, - 'a181': 696, - 'a200': 696, - 'a182': 874, - 'a201': 874, - 'a183': 760, - 'a184': 946, - 'a197': 771, - 'a185': 865, - 'a194': 771, - 'a198': 888, - 'a186': 967, - 'a195': 888, - 'a187': 831, - 'a188': 873, - 'a189': 927, - 'a190': 970, - 'a191': 918 +// TODO refactor to remove dependency on colorspace.js +coreColorSpace._setCoreImage(exports); +})); + + +(function (root, factory) { + { + factory((root.pdfjsCorePattern = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreFunction, + root.pdfjsCoreColorSpace); } +}(this, function (exports, sharedUtil, corePrimitives, coreFunction, + coreColorSpace) { + +var UNSUPPORTED_FEATURES = sharedUtil.UNSUPPORTED_FEATURES; +var MissingDataException = sharedUtil.MissingDataException; +var Util = sharedUtil.Util; +var assert = sharedUtil.assert; +var error = sharedUtil.error; +var info = sharedUtil.info; +var warn = sharedUtil.warn; +var isStream = corePrimitives.isStream; +var PDFFunction = coreFunction.PDFFunction; +var ColorSpace = coreColorSpace.ColorSpace; + +var ShadingType = { + FUNCTION_BASED: 1, + AXIAL: 2, + RADIAL: 3, + FREE_FORM_MESH: 4, + LATTICE_FORM_MESH: 5, + COONS_PATCH_MESH: 6, + TENSOR_PATCH_MESH: 7 }; - -var EOF = {}; - -function isEOF(v) { - return (v === EOF); -} - -var MAX_LENGTH_TO_CACHE = 1000; - -var Parser = (function ParserClosure() { - function Parser(lexer, allowStreams, xref) { - this.lexer = lexer; - this.allowStreams = allowStreams; - this.xref = xref; - this.imageCache = {}; - this.refill(); +var Pattern = (function PatternClosure() { + // Constructor should define this.getPattern + function Pattern() { + error('should not call Pattern constructor'); } - Parser.prototype = { - refill: function Parser_refill() { - this.buf1 = this.lexer.getObj(); - this.buf2 = this.lexer.getObj(); - }, - shift: function Parser_shift() { - if (isCmd(this.buf2, 'ID')) { - this.buf1 = this.buf2; - this.buf2 = null; - } else { - this.buf1 = this.buf2; - this.buf2 = this.lexer.getObj(); - } - }, - tryShift: function Parser_tryShift() { - try { - this.shift(); - return true; - } catch (e) { - if (e instanceof MissingDataException) { - throw e; - } - // Upon failure, the caller should reset this.lexer.pos to a known good - // state and call this.shift() twice to reset the buffers. - return false; - } - }, - getObj: function Parser_getObj(cipherTransform) { - var buf1 = this.buf1; - this.shift(); - - if (buf1 instanceof Cmd) { - switch (buf1.cmd) { - case 'BI': // inline image - return this.makeInlineImage(cipherTransform); - case '[': // array - var array = []; - while (!isCmd(this.buf1, ']') && !isEOF(this.buf1)) { - array.push(this.getObj(cipherTransform)); - } - if (isEOF(this.buf1)) { - error('End of file inside array'); - } - this.shift(); - return array; - case '<<': // dictionary or stream - var dict = new Dict(this.xref); - while (!isCmd(this.buf1, '>>') && !isEOF(this.buf1)) { - if (!isName(this.buf1)) { - info('Malformed dictionary: key must be a name object'); - this.shift(); - continue; - } - - var key = this.buf1.name; - this.shift(); - if (isEOF(this.buf1)) { - break; - } - dict.set(key, this.getObj(cipherTransform)); - } - if (isEOF(this.buf1)) { - error('End of file inside dictionary'); - } - - // Stream objects are not allowed inside content streams or - // object streams. - if (isCmd(this.buf2, 'stream')) { - return (this.allowStreams ? - this.makeStream(dict, cipherTransform) : dict); - } - this.shift(); - return dict; - default: // simple object - return buf1; - } - } - - if (isInt(buf1)) { // indirect reference or integer - var num = buf1; - if (isInt(this.buf1) && isCmd(this.buf2, 'R')) { - var ref = new Ref(num, this.buf1); - this.shift(); - this.shift(); - return ref; - } - return num; - } - - if (isString(buf1)) { // string - var str = buf1; - if (cipherTransform) { - str = cipherTransform.decryptString(str); - } - return str; - } - - // simple object - return buf1; - }, - /** - * Find the end of the stream by searching for the /EI\s/. - * @returns {number} The inline stream length. - */ - findDefaultInlineStreamEnd: - function Parser_findDefaultInlineStreamEnd(stream) { - var E = 0x45, I = 0x49, SPACE = 0x20, LF = 0xA, CR = 0xD; - var startPos = stream.pos, state = 0, ch, i, n, followingBytes; - while ((ch = stream.getByte()) !== -1) { - if (state === 0) { - state = (ch === E) ? 1 : 0; - } else if (state === 1) { - state = (ch === I) ? 2 : 0; - } else { - assert(state === 2); - if (ch === SPACE || ch === LF || ch === CR) { - // Let's check the next five bytes are ASCII... just be sure. - n = 5; - followingBytes = stream.peekBytes(n); - for (i = 0; i < n; i++) { - ch = followingBytes[i]; - if (ch !== LF && ch !== CR && (ch < SPACE || ch > 0x7F)) { - // Not a LF, CR, SPACE or any visible ASCII character, i.e. - // it's binary stuff. Resetting the state. - state = 0; - break; - } - } - if (state === 2) { - break; // Finished! - } - } else { - state = 0; - } - } - } - return ((stream.pos - 4) - startPos); - }, - /** - * Find the EOI (end-of-image) marker 0xFFD9 of the stream. - * @returns {number} The inline stream length. - */ - findDCTDecodeInlineStreamEnd: - function Parser_findDCTDecodeInlineStreamEnd(stream) { - var startPos = stream.pos, foundEOI = false, b, markerLength, length; - while ((b = stream.getByte()) !== -1) { - if (b !== 0xFF) { // Not a valid marker. - continue; - } - switch (stream.getByte()) { - case 0x00: // Byte stuffing. - // 0xFF00 appears to be a very common byte sequence in JPEG images. - break; - - case 0xFF: // Fill byte. - // Avoid skipping a valid marker, resetting the stream position. - stream.skip(-1); - break; - - case 0xD9: // EOI - foundEOI = true; - break; - - case 0xC0: // SOF0 - case 0xC1: // SOF1 - case 0xC2: // SOF2 - case 0xC3: // SOF3 - - case 0xC5: // SOF5 - case 0xC6: // SOF6 - case 0xC7: // SOF7 - - case 0xC9: // SOF9 - case 0xCA: // SOF10 - case 0xCB: // SOF11 - - case 0xCD: // SOF13 - case 0xCE: // SOF14 - case 0xCF: // SOF15 - - case 0xC4: // DHT - case 0xCC: // DAC - - case 0xDA: // SOS - case 0xDB: // DQT - case 0xDC: // DNL - case 0xDD: // DRI - case 0xDE: // DHP - case 0xDF: // EXP - - case 0xE0: // APP0 - case 0xE1: // APP1 - case 0xE2: // APP2 - case 0xE3: // APP3 - case 0xE4: // APP4 - case 0xE5: // APP5 - case 0xE6: // APP6 - case 0xE7: // APP7 - case 0xE8: // APP8 - case 0xE9: // APP9 - case 0xEA: // APP10 - case 0xEB: // APP11 - case 0xEC: // APP12 - case 0xED: // APP13 - case 0xEE: // APP14 - case 0xEF: // APP15 - - case 0xFE: // COM - // The marker should be followed by the length of the segment. - markerLength = stream.getUint16(); - if (markerLength > 2) { - // |markerLength| contains the byte length of the marker segment, - // including its own length (2 bytes) and excluding the marker. - stream.skip(markerLength - 2); // Jump to the next marker. - } else { - // The marker length is invalid, resetting the stream position. - stream.skip(-2); - } - break; - } - if (foundEOI) { - break; - } - } - length = stream.pos - startPos; - if (b === -1) { - warn('Inline DCTDecode image stream: ' + - 'EOI marker not found, searching for /EI/ instead.'); - stream.skip(-length); // Reset the stream position. - return this.findDefaultInlineStreamEnd(stream); - } - this.inlineStreamSkipEI(stream); - return length; - }, - /** - * Find the EOD (end-of-data) marker '~>' (i.e. TILDE + GT) of the stream. - * @returns {number} The inline stream length. - */ - findASCII85DecodeInlineStreamEnd: - function Parser_findASCII85DecodeInlineStreamEnd(stream) { - var TILDE = 0x7E, GT = 0x3E; - var startPos = stream.pos, ch, length; - while ((ch = stream.getByte()) !== -1) { - if (ch === TILDE && stream.peekByte() === GT) { - stream.skip(); - break; - } - } - length = stream.pos - startPos; - if (ch === -1) { - warn('Inline ASCII85Decode image stream: ' + - 'EOD marker not found, searching for /EI/ instead.'); - stream.skip(-length); // Reset the stream position. - return this.findDefaultInlineStreamEnd(stream); - } - this.inlineStreamSkipEI(stream); - return length; - }, - /** - * Find the EOD (end-of-data) marker '>' (i.e. GT) of the stream. - * @returns {number} The inline stream length. - */ - findASCIIHexDecodeInlineStreamEnd: - function Parser_findASCIIHexDecodeInlineStreamEnd(stream) { - var GT = 0x3E; - var startPos = stream.pos, ch, length; - while ((ch = stream.getByte()) !== -1) { - if (ch === GT) { - break; - } - } - length = stream.pos - startPos; - if (ch === -1) { - warn('Inline ASCIIHexDecode image stream: ' + - 'EOD marker not found, searching for /EI/ instead.'); - stream.skip(-length); // Reset the stream position. - return this.findDefaultInlineStreamEnd(stream); - } - this.inlineStreamSkipEI(stream); - return length; - }, - /** - * Skip over the /EI/ for streams where we search for an EOD marker. - */ - inlineStreamSkipEI: function Parser_inlineStreamSkipEI(stream) { - var E = 0x45, I = 0x49; - var state = 0, ch; - while ((ch = stream.getByte()) !== -1) { - if (state === 0) { - state = (ch === E) ? 1 : 0; - } else if (state === 1) { - state = (ch === I) ? 2 : 0; - } else if (state === 2) { - break; - } - } - }, - makeInlineImage: function Parser_makeInlineImage(cipherTransform) { - var lexer = this.lexer; - var stream = lexer.stream; - - // Parse dictionary. - var dict = new Dict(this.xref); - while (!isCmd(this.buf1, 'ID') && !isEOF(this.buf1)) { - if (!isName(this.buf1)) { - error('Dictionary key must be a name object'); - } - var key = this.buf1.name; - this.shift(); - if (isEOF(this.buf1)) { - break; - } - dict.set(key, this.getObj(cipherTransform)); - } - - // Extract the name of the first (i.e. the current) image filter. - var filter = dict.get('Filter', 'F'), filterName; - if (isName(filter)) { - filterName = filter.name; - } else if (isArray(filter) && isName(filter[0])) { - filterName = filter[0].name; - } - - // Parse image stream. - var startPos = stream.pos, length, i, ii; - if (filterName === 'DCTDecode' || filterName === 'DCT') { - length = this.findDCTDecodeInlineStreamEnd(stream); - } else if (filterName === 'ASCII85Decide' || filterName === 'A85') { - length = this.findASCII85DecodeInlineStreamEnd(stream); - } else if (filterName === 'ASCIIHexDecode' || filterName === 'AHx') { - length = this.findASCIIHexDecodeInlineStreamEnd(stream); - } else { - length = this.findDefaultInlineStreamEnd(stream); - } - var imageStream = stream.makeSubStream(startPos, length, dict); - - // Cache all images below the MAX_LENGTH_TO_CACHE threshold by their - // adler32 checksum. - var adler32; - if (length < MAX_LENGTH_TO_CACHE) { - var imageBytes = imageStream.getBytes(); - imageStream.reset(); - - var a = 1; - var b = 0; - for (i = 0, ii = imageBytes.length; i < ii; ++i) { - // No modulo required in the loop if imageBytes.length < 5552. - a += imageBytes[i] & 0xff; - b += a; - } - adler32 = ((b % 65521) << 16) | (a % 65521); - - if (this.imageCache.adler32 === adler32) { - this.buf2 = Cmd.get('EI'); - this.shift(); - - this.imageCache[adler32].reset(); - return this.imageCache[adler32]; - } - } - - if (cipherTransform) { - imageStream = cipherTransform.createStream(imageStream, length); - } - - imageStream = this.filter(imageStream, dict, length); - imageStream.dict = dict; - if (adler32 !== undefined) { - imageStream.cacheKey = 'inline_' + length + '_' + adler32; - this.imageCache[adler32] = imageStream; - } - - this.buf2 = Cmd.get('EI'); - this.shift(); - - return imageStream; - }, - makeStream: function Parser_makeStream(dict, cipherTransform) { - var lexer = this.lexer; - var stream = lexer.stream; - - // get stream start position - lexer.skipToNextLine(); - var pos = stream.pos - 1; - - // get length - var length = dict.get('Length'); - if (!isInt(length)) { - info('Bad ' + length + ' attribute in stream'); - length = 0; - } - - // skip over the stream data - stream.pos = pos + length; - lexer.nextChar(); - - // Shift '>>' and check whether the new object marks the end of the stream - if (this.tryShift() && isCmd(this.buf2, 'endstream')) { - this.shift(); // 'stream' - } else { - // bad stream length, scanning for endstream - stream.pos = pos; - var SCAN_BLOCK_SIZE = 2048; - var ENDSTREAM_SIGNATURE_LENGTH = 9; - var ENDSTREAM_SIGNATURE = [0x65, 0x6E, 0x64, 0x73, 0x74, 0x72, 0x65, - 0x61, 0x6D]; - var skipped = 0, found = false, i, j; - while (stream.pos < stream.end) { - var scanBytes = stream.peekBytes(SCAN_BLOCK_SIZE); - var scanLength = scanBytes.length - ENDSTREAM_SIGNATURE_LENGTH; - if (scanLength <= 0) { - break; - } - found = false; - for (i = 0, j = 0; i < scanLength; i++) { - var b = scanBytes[i]; - if (b !== ENDSTREAM_SIGNATURE[j]) { - i -= j; - j = 0; - } else { - j++; - if (j >= ENDSTREAM_SIGNATURE_LENGTH) { - i++; - found = true; - break; - } - } - } - if (found) { - skipped += i - ENDSTREAM_SIGNATURE_LENGTH; - stream.pos += i - ENDSTREAM_SIGNATURE_LENGTH; - break; - } - skipped += scanLength; - stream.pos += scanLength; - } - if (!found) { - error('Missing endstream'); - } - length = skipped; - - lexer.nextChar(); - this.shift(); - this.shift(); - } - this.shift(); // 'endstream' - - stream = stream.makeSubStream(pos, length, dict); - if (cipherTransform) { - stream = cipherTransform.createStream(stream, length); - } - stream = this.filter(stream, dict, length); - stream.dict = dict; - return stream; - }, - filter: function Parser_filter(stream, dict, length) { - var filter = dict.get('Filter', 'F'); - var params = dict.get('DecodeParms', 'DP'); - if (isName(filter)) { - return this.makeFilter(stream, filter.name, length, params); - } - - var maybeLength = length; - if (isArray(filter)) { - var filterArray = filter; - var paramsArray = params; - for (var i = 0, ii = filterArray.length; i < ii; ++i) { - filter = filterArray[i]; - if (!isName(filter)) { - error('Bad filter name: ' + filter); - } - - params = null; - if (isArray(paramsArray) && (i in paramsArray)) { - params = paramsArray[i]; - } - stream = this.makeFilter(stream, filter.name, maybeLength, params); - // after the first stream the length variable is invalid - maybeLength = null; - } - } - return stream; - }, - makeFilter: function Parser_makeFilter(stream, name, maybeLength, params) { - if (stream.dict.get('Length') === 0 && !maybeLength) { - warn('Empty "' + name + '" stream.'); - return new NullStream(stream); - } - try { - if (params && this.xref) { - params = this.xref.fetchIfRef(params); - } - var xrefStreamStats = this.xref.stats.streamTypes; - if (name === 'FlateDecode' || name === 'Fl') { - xrefStreamStats[StreamType.FLATE] = true; - if (params) { - return new PredictorStream(new FlateStream(stream, maybeLength), - maybeLength, params); - } - return new FlateStream(stream, maybeLength); - } - if (name === 'LZWDecode' || name === 'LZW') { - xrefStreamStats[StreamType.LZW] = true; - var earlyChange = 1; - if (params) { - if (params.has('EarlyChange')) { - earlyChange = params.get('EarlyChange'); - } - return new PredictorStream( - new LZWStream(stream, maybeLength, earlyChange), - maybeLength, params); - } - return new LZWStream(stream, maybeLength, earlyChange); - } - if (name === 'DCTDecode' || name === 'DCT') { - xrefStreamStats[StreamType.DCT] = true; - return new JpegStream(stream, maybeLength, stream.dict, this.xref); - } - if (name === 'JPXDecode' || name === 'JPX') { - xrefStreamStats[StreamType.JPX] = true; - return new JpxStream(stream, maybeLength, stream.dict); - } - if (name === 'ASCII85Decode' || name === 'A85') { - xrefStreamStats[StreamType.A85] = true; - return new Ascii85Stream(stream, maybeLength); - } - if (name === 'ASCIIHexDecode' || name === 'AHx') { - xrefStreamStats[StreamType.AHX] = true; - return new AsciiHexStream(stream, maybeLength); - } - if (name === 'CCITTFaxDecode' || name === 'CCF') { - xrefStreamStats[StreamType.CCF] = true; - return new CCITTFaxStream(stream, maybeLength, params); - } - if (name === 'RunLengthDecode' || name === 'RL') { - xrefStreamStats[StreamType.RL] = true; - return new RunLengthStream(stream, maybeLength); - } - if (name === 'JBIG2Decode') { - xrefStreamStats[StreamType.JBIG] = true; - return new Jbig2Stream(stream, maybeLength, stream.dict); - } - warn('filter "' + name + '" not supported yet'); - return stream; - } catch (ex) { - if (ex instanceof MissingDataException) { - throw ex; - } - warn('Invalid stream: \"' + ex + '\"'); - return new NullStream(stream); - } + Pattern.prototype = { + // Input: current Canvas context + // Output: the appropriate fillStyle or strokeStyle + getPattern: function Pattern_getPattern(ctx) { + error('Should not call Pattern.getStyle: ' + ctx); } }; - return Parser; + Pattern.parseShading = function Pattern_parseShading(shading, matrix, xref, + res, handler) { + + var dict = isStream(shading) ? shading.dict : shading; + var type = dict.get('ShadingType'); + + try { + switch (type) { + case ShadingType.AXIAL: + case ShadingType.RADIAL: + // Both radial and axial shadings are handled by RadialAxial shading. + return new Shadings.RadialAxial(dict, matrix, xref, res); + case ShadingType.FREE_FORM_MESH: + case ShadingType.LATTICE_FORM_MESH: + case ShadingType.COONS_PATCH_MESH: + case ShadingType.TENSOR_PATCH_MESH: + return new Shadings.Mesh(shading, matrix, xref, res); + default: + throw new Error('Unsupported ShadingType: ' + type); + } + } catch (ex) { + if (ex instanceof MissingDataException) { + throw ex; + } + handler.send('UnsupportedFeature', + {featureId: UNSUPPORTED_FEATURES.shadingPattern}); + warn(ex); + return new Shadings.Dummy(); + } + }; + return Pattern; })(); -var Lexer = (function LexerClosure() { - function Lexer(stream, knownCommands) { +var Shadings = {}; + +// A small number to offset the first/last color stops so we can insert ones to +// support extend. Number.MIN_VALUE appears to be too small and breaks the +// extend. 1e-7 works in FF but chrome seems to use an even smaller sized number +// internally so we have to go bigger. +Shadings.SMALL_NUMBER = 1e-2; + +// Radial and axial shading have very similar implementations +// If needed, the implementations can be broken into two classes +Shadings.RadialAxial = (function RadialAxialClosure() { + function RadialAxial(dict, matrix, xref, res) { + this.matrix = matrix; + this.coordsArr = dict.get('Coords'); + this.shadingType = dict.get('ShadingType'); + this.type = 'Pattern'; + var cs = dict.get('ColorSpace', 'CS'); + cs = ColorSpace.parse(cs, xref, res); + this.cs = cs; + + var t0 = 0.0, t1 = 1.0; + if (dict.has('Domain')) { + var domainArr = dict.get('Domain'); + t0 = domainArr[0]; + t1 = domainArr[1]; + } + + var extendStart = false, extendEnd = false; + if (dict.has('Extend')) { + var extendArr = dict.get('Extend'); + extendStart = extendArr[0]; + extendEnd = extendArr[1]; + } + + if (this.shadingType === ShadingType.RADIAL && + (!extendStart || !extendEnd)) { + // Radial gradient only currently works if either circle is fully within + // the other circle. + var x1 = this.coordsArr[0]; + var y1 = this.coordsArr[1]; + var r1 = this.coordsArr[2]; + var x2 = this.coordsArr[3]; + var y2 = this.coordsArr[4]; + var r2 = this.coordsArr[5]; + var distance = Math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)); + if (r1 <= r2 + distance && + r2 <= r1 + distance) { + warn('Unsupported radial gradient.'); + } + } + + this.extendStart = extendStart; + this.extendEnd = extendEnd; + + var fnObj = dict.get('Function'); + var fn = PDFFunction.parseArray(xref, fnObj); + + // 10 samples seems good enough for now, but probably won't work + // if there are sharp color changes. Ideally, we would implement + // the spec faithfully and add lossless optimizations. + var diff = t1 - t0; + var step = diff / 10; + + var colorStops = this.colorStops = []; + + // Protect against bad domains so we don't end up in an infinte loop below. + if (t0 >= t1 || step <= 0) { + // Acrobat doesn't seem to handle these cases so we'll ignore for + // now. + info('Bad shading domain.'); + return; + } + + var color = new Float32Array(cs.numComps), ratio = new Float32Array(1); + var rgbColor; + for (var i = t0; i <= t1; i += step) { + ratio[0] = i; + fn(ratio, 0, color, 0); + rgbColor = cs.getRgb(color, 0); + var cssColor = Util.makeCssRgb(rgbColor[0], rgbColor[1], rgbColor[2]); + colorStops.push([(i - t0) / diff, cssColor]); + } + + var background = 'transparent'; + if (dict.has('Background')) { + rgbColor = cs.getRgb(dict.get('Background'), 0); + background = Util.makeCssRgb(rgbColor[0], rgbColor[1], rgbColor[2]); + } + + if (!extendStart) { + // Insert a color stop at the front and offset the first real color stop + // so it doesn't conflict with the one we insert. + colorStops.unshift([0, background]); + colorStops[1][0] += Shadings.SMALL_NUMBER; + } + if (!extendEnd) { + // Same idea as above in extendStart but for the end. + colorStops[colorStops.length - 1][0] -= Shadings.SMALL_NUMBER; + colorStops.push([1, background]); + } + + this.colorStops = colorStops; + } + + RadialAxial.prototype = { + getIR: function RadialAxial_getIR() { + var coordsArr = this.coordsArr; + var shadingType = this.shadingType; + var type, p0, p1, r0, r1; + if (shadingType === ShadingType.AXIAL) { + p0 = [coordsArr[0], coordsArr[1]]; + p1 = [coordsArr[2], coordsArr[3]]; + r0 = null; + r1 = null; + type = 'axial'; + } else if (shadingType === ShadingType.RADIAL) { + p0 = [coordsArr[0], coordsArr[1]]; + p1 = [coordsArr[3], coordsArr[4]]; + r0 = coordsArr[2]; + r1 = coordsArr[5]; + type = 'radial'; + } else { + error('getPattern type unknown: ' + shadingType); + } + + var matrix = this.matrix; + if (matrix) { + p0 = Util.applyTransform(p0, matrix); + p1 = Util.applyTransform(p1, matrix); + if (shadingType === ShadingType.RADIAL) { + var scale = Util.singularValueDecompose2dScale(matrix); + r0 *= scale[0]; + r1 *= scale[1]; + } + } + + return ['RadialAxial', type, this.colorStops, p0, p1, r0, r1]; + } + }; + + return RadialAxial; +})(); + +// All mesh shading. For now, they will be presented as set of the triangles +// to be drawn on the canvas and rgb color for each vertex. +Shadings.Mesh = (function MeshClosure() { + function MeshStreamReader(stream, context) { this.stream = stream; - this.nextChar(); + this.context = context; + this.buffer = 0; + this.bufferLength = 0; - // While lexing, we build up many strings one char at a time. Using += for - // this can result in lots of garbage strings. It's better to build an - // array of single-char strings and then join() them together at the end. - // And reusing a single array (i.e. |this.strBuf|) over and over for this - // purpose uses less memory than using a new array for each string. - this.strBuf = []; - - // The PDFs might have "glued" commands with other commands, operands or - // literals, e.g. "q1". The knownCommands is a dictionary of the valid - // commands and their prefixes. The prefixes are built the following way: - // if there a command that is a prefix of the other valid command or - // literal (e.g. 'f' and 'false') the following prefixes must be included, - // 'fa', 'fal', 'fals'. The prefixes are not needed, if the command has no - // other commands or literals as a prefix. The knowCommands is optional. - this.knownCommands = knownCommands; + var numComps = context.numComps; + this.tmpCompsBuf = new Float32Array(numComps); + var csNumComps = context.colorSpace.numComps; + this.tmpCsCompsBuf = context.colorFn ? new Float32Array(csNumComps) : + this.tmpCompsBuf; } - - Lexer.isSpace = function Lexer_isSpace(ch) { - // Space is one of the following characters: SPACE, TAB, CR or LF. - return (ch === 0x20 || ch === 0x09 || ch === 0x0D || ch === 0x0A); - }; - - // A '1' in this array means the character is white space. A '1' or - // '2' means the character ends a name or command. - var specialChars = [ - 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, // 0x - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 1x - 1, 0, 0, 0, 0, 2, 0, 0, 2, 2, 0, 0, 0, 0, 0, 2, // 2x - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, // 3x - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 4x - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, // 5x - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 6x - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, // 7x - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 8x - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 9x - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // ax - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // bx - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // cx - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // dx - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // ex - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 // fx - ]; - - function toHexDigit(ch) { - if (ch >= 0x30 && ch <= 0x39) { // '0'-'9' - return ch & 0x0F; - } - if ((ch >= 0x41 && ch <= 0x46) || (ch >= 0x61 && ch <= 0x66)) { - // 'A'-'F', 'a'-'f' - return (ch & 0x0F) + 9; - } - return -1; - } - - Lexer.prototype = { - nextChar: function Lexer_nextChar() { - return (this.currentChar = this.stream.getByte()); - }, - peekChar: function Lexer_peekChar() { - return this.stream.peekByte(); - }, - getNumber: function Lexer_getNumber() { - var ch = this.currentChar; - var eNotation = false; - var divideBy = 0; // different from 0 if it's a floating point value - var sign = 1; - - if (ch === 0x2D) { // '-' - sign = -1; - ch = this.nextChar(); - - if (ch === 0x2D) { // '-' - // Ignore double negative (this is consistent with Adobe Reader). - ch = this.nextChar(); - } - } else if (ch === 0x2B) { // '+' - ch = this.nextChar(); + MeshStreamReader.prototype = { + get hasData() { + if (this.stream.end) { + return this.stream.pos < this.stream.end; } - if (ch === 0x2E) { // '.' - divideBy = 10; - ch = this.nextChar(); - } - if (ch < 0x30 || ch > 0x39) { // '0' - '9' - error('Invalid number: ' + String.fromCharCode(ch)); - return 0; - } - - var baseValue = ch - 0x30; // '0' - var powerValue = 0; - var powerValueSign = 1; - - while ((ch = this.nextChar()) >= 0) { - if (0x30 <= ch && ch <= 0x39) { // '0' - '9' - var currentDigit = ch - 0x30; // '0' - if (eNotation) { // We are after an 'e' or 'E' - powerValue = powerValue * 10 + currentDigit; - } else { - if (divideBy !== 0) { // We are after a point - divideBy *= 10; - } - baseValue = baseValue * 10 + currentDigit; - } - } else if (ch === 0x2E) { // '.' - if (divideBy === 0) { - divideBy = 1; - } else { - // A number can have only one '.' - break; - } - } else if (ch === 0x2D) { // '-' - // ignore minus signs in the middle of numbers to match - // Adobe's behavior - warn('Badly formated number'); - } else if (ch === 0x45 || ch === 0x65) { // 'E', 'e' - // 'E' can be either a scientific notation or the beginning of a new - // operator - ch = this.peekChar(); - if (ch === 0x2B || ch === 0x2D) { // '+', '-' - powerValueSign = (ch === 0x2D) ? -1 : 1; - this.nextChar(); // Consume the sign character - } else if (ch < 0x30 || ch > 0x39) { // '0' - '9' - // The 'E' must be the beginning of a new operator - break; - } - eNotation = true; - } else { - // the last character doesn't belong to us - break; - } - } - - if (divideBy !== 0) { - baseValue /= divideBy; - } - if (eNotation) { - baseValue *= Math.pow(10, powerValueSign * powerValue); - } - return sign * baseValue; - }, - getString: function Lexer_getString() { - var numParen = 1; - var done = false; - var strBuf = this.strBuf; - strBuf.length = 0; - - var ch = this.nextChar(); - while (true) { - var charBuffered = false; - switch (ch | 0) { - case -1: - warn('Unterminated string'); - done = true; - break; - case 0x28: // '(' - ++numParen; - strBuf.push('('); - break; - case 0x29: // ')' - if (--numParen === 0) { - this.nextChar(); // consume strings ')' - done = true; - } else { - strBuf.push(')'); - } - break; - case 0x5C: // '\\' - ch = this.nextChar(); - switch (ch) { - case -1: - warn('Unterminated string'); - done = true; - break; - case 0x6E: // 'n' - strBuf.push('\n'); - break; - case 0x72: // 'r' - strBuf.push('\r'); - break; - case 0x74: // 't' - strBuf.push('\t'); - break; - case 0x62: // 'b' - strBuf.push('\b'); - break; - case 0x66: // 'f' - strBuf.push('\f'); - break; - case 0x5C: // '\' - case 0x28: // '(' - case 0x29: // ')' - strBuf.push(String.fromCharCode(ch)); - break; - case 0x30: case 0x31: case 0x32: case 0x33: // '0'-'3' - case 0x34: case 0x35: case 0x36: case 0x37: // '4'-'7' - var x = ch & 0x0F; - ch = this.nextChar(); - charBuffered = true; - if (ch >= 0x30 && ch <= 0x37) { // '0'-'7' - x = (x << 3) + (ch & 0x0F); - ch = this.nextChar(); - if (ch >= 0x30 && ch <= 0x37) { // '0'-'7' - charBuffered = false; - x = (x << 3) + (ch & 0x0F); - } - } - strBuf.push(String.fromCharCode(x)); - break; - case 0x0D: // CR - if (this.peekChar() === 0x0A) { // LF - this.nextChar(); - } - break; - case 0x0A: // LF - break; - default: - strBuf.push(String.fromCharCode(ch)); - break; - } - break; - default: - strBuf.push(String.fromCharCode(ch)); - break; - } - if (done) { - break; - } - if (!charBuffered) { - ch = this.nextChar(); - } - } - return strBuf.join(''); - }, - getName: function Lexer_getName() { - var ch, previousCh; - var strBuf = this.strBuf; - strBuf.length = 0; - while ((ch = this.nextChar()) >= 0 && !specialChars[ch]) { - if (ch === 0x23) { // '#' - ch = this.nextChar(); - if (specialChars[ch]) { - warn('Lexer_getName: ' + - 'NUMBER SIGN (#) should be followed by a hexadecimal number.'); - strBuf.push('#'); - break; - } - var x = toHexDigit(ch); - if (x !== -1) { - previousCh = ch; - ch = this.nextChar(); - var x2 = toHexDigit(ch); - if (x2 === -1) { - warn('Lexer_getName: Illegal digit (' + - String.fromCharCode(ch) +') in hexadecimal number.'); - strBuf.push('#', String.fromCharCode(previousCh)); - if (specialChars[ch]) { - break; - } - strBuf.push(String.fromCharCode(ch)); - continue; - } - strBuf.push(String.fromCharCode((x << 4) | x2)); - } else { - strBuf.push('#', String.fromCharCode(ch)); - } - } else { - strBuf.push(String.fromCharCode(ch)); - } - } - if (strBuf.length > 127) { - warn('name token is longer than allowed by the spec: ' + strBuf.length); - } - return Name.get(strBuf.join('')); - }, - getHexString: function Lexer_getHexString() { - var strBuf = this.strBuf; - strBuf.length = 0; - var ch = this.currentChar; - var isFirstHex = true; - var firstDigit; - var secondDigit; - while (true) { - if (ch < 0) { - warn('Unterminated hex string'); - break; - } else if (ch === 0x3E) { // '>' - this.nextChar(); - break; - } else if (specialChars[ch] === 1) { - ch = this.nextChar(); - continue; - } else { - if (isFirstHex) { - firstDigit = toHexDigit(ch); - if (firstDigit === -1) { - warn('Ignoring invalid character "' + ch + '" in hex string'); - ch = this.nextChar(); - continue; - } - } else { - secondDigit = toHexDigit(ch); - if (secondDigit === -1) { - warn('Ignoring invalid character "' + ch + '" in hex string'); - ch = this.nextChar(); - continue; - } - strBuf.push(String.fromCharCode((firstDigit << 4) | secondDigit)); - } - isFirstHex = !isFirstHex; - ch = this.nextChar(); - } - } - return strBuf.join(''); - }, - getObj: function Lexer_getObj() { - // skip whitespace and comments - var comment = false; - var ch = this.currentChar; - while (true) { - if (ch < 0) { - return EOF; - } - if (comment) { - if (ch === 0x0A || ch === 0x0D) { // LF, CR - comment = false; - } - } else if (ch === 0x25) { // '%' - comment = true; - } else if (specialChars[ch] !== 1) { - break; - } - ch = this.nextChar(); - } - - // start reading token - switch (ch | 0) { - case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: // '0'-'4' - case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: // '5'-'9' - case 0x2B: case 0x2D: case 0x2E: // '+', '-', '.' - return this.getNumber(); - case 0x28: // '(' - return this.getString(); - case 0x2F: // '/' - return this.getName(); - // array punctuation - case 0x5B: // '[' - this.nextChar(); - return Cmd.get('['); - case 0x5D: // ']' - this.nextChar(); - return Cmd.get(']'); - // hex string or dict punctuation - case 0x3C: // '<' - ch = this.nextChar(); - if (ch === 0x3C) { - // dict punctuation - this.nextChar(); - return Cmd.get('<<'); - } - return this.getHexString(); - // dict punctuation - case 0x3E: // '>' - ch = this.nextChar(); - if (ch === 0x3E) { - this.nextChar(); - return Cmd.get('>>'); - } - return Cmd.get('>'); - case 0x7B: // '{' - this.nextChar(); - return Cmd.get('{'); - case 0x7D: // '}' - this.nextChar(); - return Cmd.get('}'); - case 0x29: // ')' - error('Illegal character: ' + ch); - break; - } - - // command - var str = String.fromCharCode(ch); - var knownCommands = this.knownCommands; - var knownCommandFound = knownCommands && knownCommands[str] !== undefined; - while ((ch = this.nextChar()) >= 0 && !specialChars[ch]) { - // stop if known command is found and next character does not make - // the str a command - var possibleCommand = str + String.fromCharCode(ch); - if (knownCommandFound && knownCommands[possibleCommand] === undefined) { - break; - } - if (str.length === 128) { - error('Command token too long: ' + str.length); - } - str = possibleCommand; - knownCommandFound = knownCommands && knownCommands[str] !== undefined; - } - if (str === 'true') { + if (this.bufferLength > 0) { return true; } - if (str === 'false') { + var nextByte = this.stream.getByte(); + if (nextByte < 0) { return false; } - if (str === 'null') { - return null; - } - return Cmd.get(str); + this.buffer = nextByte; + this.bufferLength = 8; + return true; }, - skipToNextLine: function Lexer_skipToNextLine() { - var ch = this.currentChar; - while (ch >= 0) { - if (ch === 0x0D) { // CR - ch = this.nextChar(); - if (ch === 0x0A) { // LF - this.nextChar(); - } - break; - } else if (ch === 0x0A) { // LF - this.nextChar(); - break; + readBits: function MeshStreamReader_readBits(n) { + var buffer = this.buffer; + var bufferLength = this.bufferLength; + if (n === 32) { + if (bufferLength === 0) { + return ((this.stream.getByte() << 24) | + (this.stream.getByte() << 16) | (this.stream.getByte() << 8) | + this.stream.getByte()) >>> 0; } - ch = this.nextChar(); + buffer = (buffer << 24) | (this.stream.getByte() << 16) | + (this.stream.getByte() << 8) | this.stream.getByte(); + var nextByte = this.stream.getByte(); + this.buffer = nextByte & ((1 << bufferLength) - 1); + return ((buffer << (8 - bufferLength)) | + ((nextByte & 0xFF) >> bufferLength)) >>> 0; } + if (n === 8 && bufferLength === 0) { + return this.stream.getByte(); + } + while (bufferLength < n) { + buffer = (buffer << 8) | this.stream.getByte(); + bufferLength += 8; + } + bufferLength -= n; + this.bufferLength = bufferLength; + this.buffer = buffer & ((1 << bufferLength) - 1); + return buffer >> bufferLength; + }, + align: function MeshStreamReader_align() { + this.buffer = 0; + this.bufferLength = 0; + }, + readFlag: function MeshStreamReader_readFlag() { + return this.readBits(this.context.bitsPerFlag); + }, + readCoordinate: function MeshStreamReader_readCoordinate() { + var bitsPerCoordinate = this.context.bitsPerCoordinate; + var xi = this.readBits(bitsPerCoordinate); + var yi = this.readBits(bitsPerCoordinate); + var decode = this.context.decode; + var scale = bitsPerCoordinate < 32 ? 1 / ((1 << bitsPerCoordinate) - 1) : + 2.3283064365386963e-10; // 2 ^ -32 + return [ + xi * scale * (decode[1] - decode[0]) + decode[0], + yi * scale * (decode[3] - decode[2]) + decode[2] + ]; + }, + readComponents: function MeshStreamReader_readComponents() { + var numComps = this.context.numComps; + var bitsPerComponent = this.context.bitsPerComponent; + var scale = bitsPerComponent < 32 ? 1 / ((1 << bitsPerComponent) - 1) : + 2.3283064365386963e-10; // 2 ^ -32 + var decode = this.context.decode; + var components = this.tmpCompsBuf; + for (var i = 0, j = 4; i < numComps; i++, j += 2) { + var ci = this.readBits(bitsPerComponent); + components[i] = ci * scale * (decode[j + 1] - decode[j]) + decode[j]; + } + var color = this.tmpCsCompsBuf; + if (this.context.colorFn) { + this.context.colorFn(components, 0, color, 0); + } + return this.context.colorSpace.getRgb(color, 0); } }; - return Lexer; -})(); - -var Linearization = { - create: function LinearizationCreate(stream) { - function getInt(name, allowZeroValue) { - var obj = linDict.get(name); - if (isInt(obj) && (allowZeroValue ? obj >= 0 : obj > 0)) { - return obj; + function decodeType4Shading(mesh, reader) { + var coords = mesh.coords; + var colors = mesh.colors; + var operators = []; + var ps = []; // not maintaining cs since that will match ps + var verticesLeft = 0; // assuming we have all data to start a new triangle + while (reader.hasData) { + var f = reader.readFlag(); + var coord = reader.readCoordinate(); + var color = reader.readComponents(); + if (verticesLeft === 0) { // ignoring flags if we started a triangle + assert(0 <= f && f <= 2, 'Unknown type4 flag'); + switch (f) { + case 0: + verticesLeft = 3; + break; + case 1: + ps.push(ps[ps.length - 2], ps[ps.length - 1]); + verticesLeft = 1; + break; + case 2: + ps.push(ps[ps.length - 3], ps[ps.length - 1]); + verticesLeft = 1; + break; + } + operators.push(f); } - throw new Error('The "' + name + '" parameter in the linearization ' + - 'dictionary is invalid.'); + ps.push(coords.length); + coords.push(coord); + colors.push(color); + verticesLeft--; + + reader.align(); } - function getHints() { - var hints = linDict.get('H'), hintsLength, item; - if (isArray(hints) && - ((hintsLength = hints.length) === 2 || hintsLength === 4)) { - for (var index = 0; index < hintsLength; index++) { - if (!(isInt(item = hints[index]) && item > 0)) { - throw new Error('Hint (' + index + - ') in the linearization dictionary is invalid.'); + mesh.figures.push({ + type: 'triangles', + coords: new Int32Array(ps), + colors: new Int32Array(ps), + }); + } + + function decodeType5Shading(mesh, reader, verticesPerRow) { + var coords = mesh.coords; + var colors = mesh.colors; + var ps = []; // not maintaining cs since that will match ps + while (reader.hasData) { + var coord = reader.readCoordinate(); + var color = reader.readComponents(); + ps.push(coords.length); + coords.push(coord); + colors.push(color); + } + mesh.figures.push({ + type: 'lattice', + coords: new Int32Array(ps), + colors: new Int32Array(ps), + verticesPerRow: verticesPerRow + }); + } + + var MIN_SPLIT_PATCH_CHUNKS_AMOUNT = 3; + var MAX_SPLIT_PATCH_CHUNKS_AMOUNT = 20; + + var TRIANGLE_DENSITY = 20; // count of triangles per entire mesh bounds + + var getB = (function getBClosure() { + function buildB(count) { + var lut = []; + for (var i = 0; i <= count; i++) { + var t = i / count, t_ = 1 - t; + lut.push(new Float32Array([t_ * t_ * t_, 3 * t * t_ * t_, + 3 * t * t * t_, t * t * t])); + } + return lut; + } + var cache = []; + return function getB(count) { + if (!cache[count]) { + cache[count] = buildB(count); + } + return cache[count]; + }; + })(); + + function buildFigureFromPatch(mesh, index) { + var figure = mesh.figures[index]; + assert(figure.type === 'patch', 'Unexpected patch mesh figure'); + + var coords = mesh.coords, colors = mesh.colors; + var pi = figure.coords; + var ci = figure.colors; + + var figureMinX = Math.min(coords[pi[0]][0], coords[pi[3]][0], + coords[pi[12]][0], coords[pi[15]][0]); + var figureMinY = Math.min(coords[pi[0]][1], coords[pi[3]][1], + coords[pi[12]][1], coords[pi[15]][1]); + var figureMaxX = Math.max(coords[pi[0]][0], coords[pi[3]][0], + coords[pi[12]][0], coords[pi[15]][0]); + var figureMaxY = Math.max(coords[pi[0]][1], coords[pi[3]][1], + coords[pi[12]][1], coords[pi[15]][1]); + var splitXBy = Math.ceil((figureMaxX - figureMinX) * TRIANGLE_DENSITY / + (mesh.bounds[2] - mesh.bounds[0])); + splitXBy = Math.max(MIN_SPLIT_PATCH_CHUNKS_AMOUNT, + Math.min(MAX_SPLIT_PATCH_CHUNKS_AMOUNT, splitXBy)); + var splitYBy = Math.ceil((figureMaxY - figureMinY) * TRIANGLE_DENSITY / + (mesh.bounds[3] - mesh.bounds[1])); + splitYBy = Math.max(MIN_SPLIT_PATCH_CHUNKS_AMOUNT, + Math.min(MAX_SPLIT_PATCH_CHUNKS_AMOUNT, splitYBy)); + + var verticesPerRow = splitXBy + 1; + var figureCoords = new Int32Array((splitYBy + 1) * verticesPerRow); + var figureColors = new Int32Array((splitYBy + 1) * verticesPerRow); + var k = 0; + var cl = new Uint8Array(3), cr = new Uint8Array(3); + var c0 = colors[ci[0]], c1 = colors[ci[1]], + c2 = colors[ci[2]], c3 = colors[ci[3]]; + var bRow = getB(splitYBy), bCol = getB(splitXBy); + for (var row = 0; row <= splitYBy; row++) { + cl[0] = ((c0[0] * (splitYBy - row) + c2[0] * row) / splitYBy) | 0; + cl[1] = ((c0[1] * (splitYBy - row) + c2[1] * row) / splitYBy) | 0; + cl[2] = ((c0[2] * (splitYBy - row) + c2[2] * row) / splitYBy) | 0; + + cr[0] = ((c1[0] * (splitYBy - row) + c3[0] * row) / splitYBy) | 0; + cr[1] = ((c1[1] * (splitYBy - row) + c3[1] * row) / splitYBy) | 0; + cr[2] = ((c1[2] * (splitYBy - row) + c3[2] * row) / splitYBy) | 0; + + for (var col = 0; col <= splitXBy; col++, k++) { + if ((row === 0 || row === splitYBy) && + (col === 0 || col === splitXBy)) { + continue; + } + var x = 0, y = 0; + var q = 0; + for (var i = 0; i <= 3; i++) { + for (var j = 0; j <= 3; j++, q++) { + var m = bRow[row][i] * bCol[col][j]; + x += coords[pi[q]][0] * m; + y += coords[pi[q]][1] * m; } } - return hints; + figureCoords[k] = coords.length; + coords.push([x, y]); + figureColors[k] = colors.length; + var newColor = new Uint8Array(3); + newColor[0] = ((cl[0] * (splitXBy - col) + cr[0] * col) / splitXBy) | 0; + newColor[1] = ((cl[1] * (splitXBy - col) + cr[1] * col) / splitXBy) | 0; + newColor[2] = ((cl[2] * (splitXBy - col) + cr[2] * col) / splitXBy) | 0; + colors.push(newColor); } - throw new Error('Hint array in the linearization dictionary is invalid.'); } - var parser = new Parser(new Lexer(stream), false, null); - var obj1 = parser.getObj(); - var obj2 = parser.getObj(); - var obj3 = parser.getObj(); - var linDict = parser.getObj(); - var obj, length; - if (!(isInt(obj1) && isInt(obj2) && isCmd(obj3, 'obj') && isDict(linDict) && - isNum(obj = linDict.get('Linearized')) && obj > 0)) { - return null; // No valid linearization dictionary found. - } else if ((length = getInt('L')) !== stream.length) { - throw new Error('The "L" parameter in the linearization dictionary ' + - 'does not equal the stream length.'); - } - return { - length: length, - hints: getHints(), - objectNumberFirst: getInt('O'), - endFirst: getInt('E'), - numPages: getInt('N'), - mainXRefEntriesOffset: getInt('T'), - pageFirst: (linDict.has('P') ? getInt('P', true) : 0) + figureCoords[0] = pi[0]; + figureColors[0] = ci[0]; + figureCoords[splitXBy] = pi[3]; + figureColors[splitXBy] = ci[1]; + figureCoords[verticesPerRow * splitYBy] = pi[12]; + figureColors[verticesPerRow * splitYBy] = ci[2]; + figureCoords[verticesPerRow * splitYBy + splitXBy] = pi[15]; + figureColors[verticesPerRow * splitYBy + splitXBy] = ci[3]; + + mesh.figures[index] = { + type: 'lattice', + coords: figureCoords, + colors: figureColors, + verticesPerRow: verticesPerRow }; } -}; - -var PostScriptParser = (function PostScriptParserClosure() { - function PostScriptParser(lexer) { - this.lexer = lexer; - this.operators = []; - this.token = null; - this.prev = null; + function decodeType6Shading(mesh, reader) { + // A special case of Type 7. The p11, p12, p21, p22 automatically filled + var coords = mesh.coords; + var colors = mesh.colors; + var ps = new Int32Array(16); // p00, p10, ..., p30, p01, ..., p33 + var cs = new Int32Array(4); // c00, c30, c03, c33 + while (reader.hasData) { + var f = reader.readFlag(); + assert(0 <= f && f <= 3, 'Unknown type6 flag'); + var i, ii; + var pi = coords.length; + for (i = 0, ii = (f !== 0 ? 8 : 12); i < ii; i++) { + coords.push(reader.readCoordinate()); + } + var ci = colors.length; + for (i = 0, ii = (f !== 0 ? 2 : 4); i < ii; i++) { + colors.push(reader.readComponents()); + } + var tmp1, tmp2, tmp3, tmp4; + switch (f) { + case 0: + ps[12] = pi + 3; ps[13] = pi + 4; ps[14] = pi + 5; ps[15] = pi + 6; + ps[ 8] = pi + 2; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 7; + ps[ 4] = pi + 1; /* calculated below */ ps[ 7] = pi + 8; + ps[ 0] = pi; ps[ 1] = pi + 11; ps[ 2] = pi + 10; ps[ 3] = pi + 9; + cs[2] = ci + 1; cs[3] = ci + 2; + cs[0] = ci; cs[1] = ci + 3; + break; + case 1: + tmp1 = ps[12]; tmp2 = ps[13]; tmp3 = ps[14]; tmp4 = ps[15]; + ps[12] = tmp4; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; + ps[ 8] = tmp3; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 3; + ps[ 4] = tmp2; /* calculated below */ ps[ 7] = pi + 4; + ps[ 0] = tmp1; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; + tmp1 = cs[2]; tmp2 = cs[3]; + cs[2] = tmp2; cs[3] = ci; + cs[0] = tmp1; cs[1] = ci + 1; + break; + case 2: + tmp1 = ps[15]; + tmp2 = ps[11]; + ps[12] = ps[3]; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; + ps[ 8] = ps[7]; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 3; + ps[ 4] = tmp2; /* calculated below */ ps[ 7] = pi + 4; + ps[ 0] = tmp1; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; + tmp1 = cs[3]; + cs[2] = cs[1]; cs[3] = ci; + cs[0] = tmp1; cs[1] = ci + 1; + break; + case 3: + ps[12] = ps[0]; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; + ps[ 8] = ps[1]; /* values for 5, 6, 9, 10 are */ ps[11] = pi + 3; + ps[ 4] = ps[2]; /* calculated below */ ps[ 7] = pi + 4; + ps[ 0] = ps[3]; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; + cs[2] = cs[0]; cs[3] = ci; + cs[0] = cs[1]; cs[1] = ci + 1; + break; + } + // set p11, p12, p21, p22 + ps[5] = coords.length; + coords.push([ + (-4 * coords[ps[0]][0] - coords[ps[15]][0] + + 6 * (coords[ps[4]][0] + coords[ps[1]][0]) - + 2 * (coords[ps[12]][0] + coords[ps[3]][0]) + + 3 * (coords[ps[13]][0] + coords[ps[7]][0])) / 9, + (-4 * coords[ps[0]][1] - coords[ps[15]][1] + + 6 * (coords[ps[4]][1] + coords[ps[1]][1]) - + 2 * (coords[ps[12]][1] + coords[ps[3]][1]) + + 3 * (coords[ps[13]][1] + coords[ps[7]][1])) / 9 + ]); + ps[6] = coords.length; + coords.push([ + (-4 * coords[ps[3]][0] - coords[ps[12]][0] + + 6 * (coords[ps[2]][0] + coords[ps[7]][0]) - + 2 * (coords[ps[0]][0] + coords[ps[15]][0]) + + 3 * (coords[ps[4]][0] + coords[ps[14]][0])) / 9, + (-4 * coords[ps[3]][1] - coords[ps[12]][1] + + 6 * (coords[ps[2]][1] + coords[ps[7]][1]) - + 2 * (coords[ps[0]][1] + coords[ps[15]][1]) + + 3 * (coords[ps[4]][1] + coords[ps[14]][1])) / 9 + ]); + ps[9] = coords.length; + coords.push([ + (-4 * coords[ps[12]][0] - coords[ps[3]][0] + + 6 * (coords[ps[8]][0] + coords[ps[13]][0]) - + 2 * (coords[ps[0]][0] + coords[ps[15]][0]) + + 3 * (coords[ps[11]][0] + coords[ps[1]][0])) / 9, + (-4 * coords[ps[12]][1] - coords[ps[3]][1] + + 6 * (coords[ps[8]][1] + coords[ps[13]][1]) - + 2 * (coords[ps[0]][1] + coords[ps[15]][1]) + + 3 * (coords[ps[11]][1] + coords[ps[1]][1])) / 9 + ]); + ps[10] = coords.length; + coords.push([ + (-4 * coords[ps[15]][0] - coords[ps[0]][0] + + 6 * (coords[ps[11]][0] + coords[ps[14]][0]) - + 2 * (coords[ps[12]][0] + coords[ps[3]][0]) + + 3 * (coords[ps[2]][0] + coords[ps[8]][0])) / 9, + (-4 * coords[ps[15]][1] - coords[ps[0]][1] + + 6 * (coords[ps[11]][1] + coords[ps[14]][1]) - + 2 * (coords[ps[12]][1] + coords[ps[3]][1]) + + 3 * (coords[ps[2]][1] + coords[ps[8]][1])) / 9 + ]); + mesh.figures.push({ + type: 'patch', + coords: new Int32Array(ps), // making copies of ps and cs + colors: new Int32Array(cs) + }); + } } - PostScriptParser.prototype = { - nextToken: function PostScriptParser_nextToken() { - this.prev = this.token; - this.token = this.lexer.getToken(); + + function decodeType7Shading(mesh, reader) { + var coords = mesh.coords; + var colors = mesh.colors; + var ps = new Int32Array(16); // p00, p10, ..., p30, p01, ..., p33 + var cs = new Int32Array(4); // c00, c30, c03, c33 + while (reader.hasData) { + var f = reader.readFlag(); + assert(0 <= f && f <= 3, 'Unknown type7 flag'); + var i, ii; + var pi = coords.length; + for (i = 0, ii = (f !== 0 ? 12 : 16); i < ii; i++) { + coords.push(reader.readCoordinate()); + } + var ci = colors.length; + for (i = 0, ii = (f !== 0 ? 2 : 4); i < ii; i++) { + colors.push(reader.readComponents()); + } + var tmp1, tmp2, tmp3, tmp4; + switch (f) { + case 0: + ps[12] = pi + 3; ps[13] = pi + 4; ps[14] = pi + 5; ps[15] = pi + 6; + ps[ 8] = pi + 2; ps[ 9] = pi + 13; ps[10] = pi + 14; ps[11] = pi + 7; + ps[ 4] = pi + 1; ps[ 5] = pi + 12; ps[ 6] = pi + 15; ps[ 7] = pi + 8; + ps[ 0] = pi; ps[ 1] = pi + 11; ps[ 2] = pi + 10; ps[ 3] = pi + 9; + cs[2] = ci + 1; cs[3] = ci + 2; + cs[0] = ci; cs[1] = ci + 3; + break; + case 1: + tmp1 = ps[12]; tmp2 = ps[13]; tmp3 = ps[14]; tmp4 = ps[15]; + ps[12] = tmp4; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; + ps[ 8] = tmp3; ps[ 9] = pi + 9; ps[10] = pi + 10; ps[11] = pi + 3; + ps[ 4] = tmp2; ps[ 5] = pi + 8; ps[ 6] = pi + 11; ps[ 7] = pi + 4; + ps[ 0] = tmp1; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; + tmp1 = cs[2]; tmp2 = cs[3]; + cs[2] = tmp2; cs[3] = ci; + cs[0] = tmp1; cs[1] = ci + 1; + break; + case 2: + tmp1 = ps[15]; + tmp2 = ps[11]; + ps[12] = ps[3]; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; + ps[ 8] = ps[7]; ps[ 9] = pi + 9; ps[10] = pi + 10; ps[11] = pi + 3; + ps[ 4] = tmp2; ps[ 5] = pi + 8; ps[ 6] = pi + 11; ps[ 7] = pi + 4; + ps[ 0] = tmp1; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; + tmp1 = cs[3]; + cs[2] = cs[1]; cs[3] = ci; + cs[0] = tmp1; cs[1] = ci + 1; + break; + case 3: + ps[12] = ps[0]; ps[13] = pi + 0; ps[14] = pi + 1; ps[15] = pi + 2; + ps[ 8] = ps[1]; ps[ 9] = pi + 9; ps[10] = pi + 10; ps[11] = pi + 3; + ps[ 4] = ps[2]; ps[ 5] = pi + 8; ps[ 6] = pi + 11; ps[ 7] = pi + 4; + ps[ 0] = ps[3]; ps[ 1] = pi + 7; ps[ 2] = pi + 6; ps[ 3] = pi + 5; + cs[2] = cs[0]; cs[3] = ci; + cs[0] = cs[1]; cs[1] = ci + 1; + break; + } + mesh.figures.push({ + type: 'patch', + coords: new Int32Array(ps), // making copies of ps and cs + colors: new Int32Array(cs) + }); + } + } + + function updateBounds(mesh) { + var minX = mesh.coords[0][0], minY = mesh.coords[0][1], + maxX = minX, maxY = minY; + for (var i = 1, ii = mesh.coords.length; i < ii; i++) { + var x = mesh.coords[i][0], y = mesh.coords[i][1]; + minX = minX > x ? x : minX; + minY = minY > y ? y : minY; + maxX = maxX < x ? x : maxX; + maxY = maxY < y ? y : maxY; + } + mesh.bounds = [minX, minY, maxX, maxY]; + } + + function packData(mesh) { + var i, ii, j, jj; + + var coords = mesh.coords; + var coordsPacked = new Float32Array(coords.length * 2); + for (i = 0, j = 0, ii = coords.length; i < ii; i++) { + var xy = coords[i]; + coordsPacked[j++] = xy[0]; + coordsPacked[j++] = xy[1]; + } + mesh.coords = coordsPacked; + + var colors = mesh.colors; + var colorsPacked = new Uint8Array(colors.length * 3); + for (i = 0, j = 0, ii = colors.length; i < ii; i++) { + var c = colors[i]; + colorsPacked[j++] = c[0]; + colorsPacked[j++] = c[1]; + colorsPacked[j++] = c[2]; + } + mesh.colors = colorsPacked; + + var figures = mesh.figures; + for (i = 0, ii = figures.length; i < ii; i++) { + var figure = figures[i], ps = figure.coords, cs = figure.colors; + for (j = 0, jj = ps.length; j < jj; j++) { + ps[j] *= 2; + cs[j] *= 3; + } + } + } + + function Mesh(stream, matrix, xref, res) { + assert(isStream(stream), 'Mesh data is not a stream'); + var dict = stream.dict; + this.matrix = matrix; + this.shadingType = dict.get('ShadingType'); + this.type = 'Pattern'; + this.bbox = dict.get('BBox'); + var cs = dict.get('ColorSpace', 'CS'); + cs = ColorSpace.parse(cs, xref, res); + this.cs = cs; + this.background = dict.has('Background') ? + cs.getRgb(dict.get('Background'), 0) : null; + + var fnObj = dict.get('Function'); + var fn = fnObj ? PDFFunction.parseArray(xref, fnObj) : null; + + this.coords = []; + this.colors = []; + this.figures = []; + + var decodeContext = { + bitsPerCoordinate: dict.get('BitsPerCoordinate'), + bitsPerComponent: dict.get('BitsPerComponent'), + bitsPerFlag: dict.get('BitsPerFlag'), + decode: dict.get('Decode'), + colorFn: fn, + colorSpace: cs, + numComps: fn ? 1 : cs.numComps + }; + var reader = new MeshStreamReader(stream, decodeContext); + + var patchMesh = false; + switch (this.shadingType) { + case ShadingType.FREE_FORM_MESH: + decodeType4Shading(this, reader); + break; + case ShadingType.LATTICE_FORM_MESH: + var verticesPerRow = dict.get('VerticesPerRow') | 0; + assert(verticesPerRow >= 2, 'Invalid VerticesPerRow'); + decodeType5Shading(this, reader, verticesPerRow); + break; + case ShadingType.COONS_PATCH_MESH: + decodeType6Shading(this, reader); + patchMesh = true; + break; + case ShadingType.TENSOR_PATCH_MESH: + decodeType7Shading(this, reader); + patchMesh = true; + break; + default: + error('Unsupported mesh type.'); + break; + } + + if (patchMesh) { + // dirty bounds calculation for determining, how dense shall be triangles + updateBounds(this); + for (var i = 0, ii = this.figures.length; i < ii; i++) { + buildFigureFromPatch(this, i); + } + } + // calculate bounds + updateBounds(this); + + packData(this); + } + + Mesh.prototype = { + getIR: function Mesh_getIR() { + return ['Mesh', this.shadingType, this.coords, this.colors, this.figures, + this.bounds, this.matrix, this.bbox, this.background]; + } + }; + + return Mesh; +})(); + +Shadings.Dummy = (function DummyClosure() { + function Dummy() { + this.type = 'Pattern'; + } + + Dummy.prototype = { + getIR: function Dummy_getIR() { + return ['Dummy']; + } + }; + return Dummy; +})(); + +function getTilingPatternIR(operatorList, dict, args) { + var matrix = dict.get('Matrix'); + var bbox = dict.get('BBox'); + var xstep = dict.get('XStep'); + var ystep = dict.get('YStep'); + var paintType = dict.get('PaintType'); + var tilingType = dict.get('TilingType'); + + return [ + 'TilingPattern', args, operatorList, matrix, bbox, xstep, ystep, + paintType, tilingType + ]; +} + +exports.Pattern = Pattern; +exports.getTilingPatternIR = getTilingPatternIR; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreEvaluator = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreStream, root.pdfjsCoreParser, + root.pdfjsCoreImage, root.pdfjsCoreColorSpace, root.pdfjsCoreMurmurHash3, + root.pdfjsCoreFonts, root.pdfjsCoreFunction, root.pdfjsCorePattern, + root.pdfjsCoreCMap, root.pdfjsCoreMetrics, root.pdfjsCoreBidi); + } +}(this, function (exports, sharedUtil, corePrimitives, coreStream, coreParser, + coreImage, coreColorSpace, coreMurmurHash3, coreFonts, + coreFunction, corePattern, coreCMap, coreMetrics, coreBidi) { + +var FONT_IDENTITY_MATRIX = sharedUtil.FONT_IDENTITY_MATRIX; +var IDENTITY_MATRIX = sharedUtil.IDENTITY_MATRIX; +var UNSUPPORTED_FEATURES = sharedUtil.UNSUPPORTED_FEATURES; +var ImageKind = sharedUtil.ImageKind; +var OPS = sharedUtil.OPS; +var TextRenderingMode = sharedUtil.TextRenderingMode; +var Util = sharedUtil.Util; +var assert = sharedUtil.assert; +var createPromiseCapability = sharedUtil.createPromiseCapability; +var error = sharedUtil.error; +var info = sharedUtil.info; +var isArray = sharedUtil.isArray; +var isNum = sharedUtil.isNum; +var isString = sharedUtil.isString; +var warn = sharedUtil.warn; +var Dict = corePrimitives.Dict; +var Name = corePrimitives.Name; +var isCmd = corePrimitives.isCmd; +var isDict = corePrimitives.isDict; +var isName = corePrimitives.isName; +var isRef = corePrimitives.isRef; +var isStream = corePrimitives.isStream; +var DecodeStream = coreStream.DecodeStream; +var JpegStream = coreStream.JpegStream; +var Lexer = coreParser.Lexer; +var Parser = coreParser.Parser; +var isEOF = coreParser.isEOF; +var PDFImage = coreImage.PDFImage; +var ColorSpace = coreColorSpace.ColorSpace; +var MurmurHash3_64 = coreMurmurHash3.MurmurHash3_64; +var Encodings = coreFonts.Encodings; +var ErrorFont = coreFonts.ErrorFont; +var FontFlags = coreFonts.FontFlags; +var Font = coreFonts.Font; +var IdentityToUnicodeMap = coreFonts.IdentityToUnicodeMap; +var NormalizedUnicodes = coreFonts.NormalizedUnicodes; +var ToUnicodeMap = coreFonts.ToUnicodeMap; +var getFontType = coreFonts.getFontType; +var reverseIfRtl = coreFonts.reverseIfRtl; +var serifFonts = coreFonts.serifFonts; +var symbolsFonts = coreFonts.symbolsFonts; +var stdFontMap = coreFonts.stdFontMap; +var isPDFFunction = coreFunction.isPDFFunction; +var PDFFunction = coreFunction.PDFFunction; +var Pattern = corePattern.Pattern; +var getTilingPatternIR = corePattern.getTilingPatternIR; +var CMapFactory = coreCMap.CMapFactory; +var IdentityCMap = coreCMap.IdentityCMap; +var Metrics = coreMetrics.Metrics; +var bidi = coreBidi.bidi; + +var PartialEvaluator = (function PartialEvaluatorClosure() { + function PartialEvaluator(pdfManager, xref, handler, pageIndex, + uniquePrefix, idCounters, fontCache) { + this.pdfManager = pdfManager; + this.xref = xref; + this.handler = handler; + this.pageIndex = pageIndex; + this.uniquePrefix = uniquePrefix; + this.idCounters = idCounters; + this.fontCache = fontCache; + } + + // Trying to minimize Date.now() usage and check every 100 time + var TIME_SLOT_DURATION_MS = 20; + var CHECK_TIME_EVERY = 100; + function TimeSlotManager() { + this.reset(); + } + TimeSlotManager.prototype = { + check: function TimeSlotManager_check() { + if (++this.checked < CHECK_TIME_EVERY) { + return false; + } + this.checked = 0; + return this.endTime <= Date.now(); }, - accept: function PostScriptParser_accept(type) { - if (this.token.type === type) { - this.nextToken(); - return true; + reset: function TimeSlotManager_reset() { + this.endTime = Date.now() + TIME_SLOT_DURATION_MS; + this.checked = 0; + } + }; + + var deferred = Promise.resolve(); + + var TILING_PATTERN = 1, SHADING_PATTERN = 2; + + PartialEvaluator.prototype = { + hasBlendModes: function PartialEvaluator_hasBlendModes(resources) { + if (!isDict(resources)) { + return false; + } + + var processed = Object.create(null); + if (resources.objId) { + processed[resources.objId] = true; + } + + var nodes = [resources]; + while (nodes.length) { + var key; + var node = nodes.shift(); + // First check the current resources for blend modes. + var graphicStates = node.get('ExtGState'); + if (isDict(graphicStates)) { + graphicStates = graphicStates.getAll(); + for (key in graphicStates) { + var graphicState = graphicStates[key]; + var bm = graphicState['BM']; + if (isName(bm) && bm.name !== 'Normal') { + return true; + } + } + } + // Descend into the XObjects to look for more resources and blend modes. + var xObjects = node.get('XObject'); + if (!isDict(xObjects)) { + continue; + } + xObjects = xObjects.getAll(); + for (key in xObjects) { + var xObject = xObjects[key]; + if (!isStream(xObject)) { + continue; + } + if (xObject.dict.objId) { + if (processed[xObject.dict.objId]) { + // stream has objId and is processed already + continue; + } + processed[xObject.dict.objId] = true; + } + var xResources = xObject.dict.get('Resources'); + // Checking objId to detect an infinite loop. + if (isDict(xResources) && + (!xResources.objId || !processed[xResources.objId])) { + nodes.push(xResources); + if (xResources.objId) { + processed[xResources.objId] = true; + } + } + } } return false; }, - expect: function PostScriptParser_expect(type) { - if (this.accept(type)) { - return true; - } - error('Unexpected symbol: found ' + this.token.type + ' expected ' + - type + '.'); - }, - parse: function PostScriptParser_parse() { - this.nextToken(); - this.expect(PostScriptTokenTypes.LBRACE); - this.parseBlock(); - this.expect(PostScriptTokenTypes.RBRACE); - return this.operators; - }, - parseBlock: function PostScriptParser_parseBlock() { - while (true) { - if (this.accept(PostScriptTokenTypes.NUMBER)) { - this.operators.push(this.prev.value); - } else if (this.accept(PostScriptTokenTypes.OPERATOR)) { - this.operators.push(this.prev.value); - } else if (this.accept(PostScriptTokenTypes.LBRACE)) { - this.parseCondition(); - } else { - return; - } - } - }, - parseCondition: function PostScriptParser_parseCondition() { - // Add two place holders that will be updated later - var conditionLocation = this.operators.length; - this.operators.push(null, null); - this.parseBlock(); - this.expect(PostScriptTokenTypes.RBRACE); - if (this.accept(PostScriptTokenTypes.IF)) { - // The true block is right after the 'if' so it just falls through on - // true else it jumps and skips the true block. - this.operators[conditionLocation] = this.operators.length; - this.operators[conditionLocation + 1] = 'jz'; - } else if (this.accept(PostScriptTokenTypes.LBRACE)) { - var jumpLocation = this.operators.length; - this.operators.push(null, null); - var endOfTrue = this.operators.length; - this.parseBlock(); - this.expect(PostScriptTokenTypes.RBRACE); - this.expect(PostScriptTokenTypes.IFELSE); - // The jump is added at the end of the true block to skip the false - // block. - this.operators[jumpLocation] = this.operators.length; - this.operators[jumpLocation + 1] = 'j'; + buildFormXObject: function PartialEvaluator_buildFormXObject(resources, + xobj, smask, + operatorList, + task, + initialState) { + var matrix = xobj.dict.getArray('Matrix'); + var bbox = xobj.dict.getArray('BBox'); + var group = xobj.dict.get('Group'); + if (group) { + var groupOptions = { + matrix: matrix, + bbox: bbox, + smask: smask, + isolated: false, + knockout: false + }; - this.operators[conditionLocation] = endOfTrue; - this.operators[conditionLocation + 1] = 'jz'; - } else { - error('PS Function: error parsing conditional.'); - } - } - }; - return PostScriptParser; -})(); - -var PostScriptTokenTypes = { - LBRACE: 0, - RBRACE: 1, - NUMBER: 2, - OPERATOR: 3, - IF: 4, - IFELSE: 5 -}; - -var PostScriptToken = (function PostScriptTokenClosure() { - function PostScriptToken(type, value) { - this.type = type; - this.value = value; - } - - var opCache = {}; - - PostScriptToken.getOperator = function PostScriptToken_getOperator(op) { - var opValue = opCache[op]; - if (opValue) { - return opValue; - } - return opCache[op] = new PostScriptToken(PostScriptTokenTypes.OPERATOR, op); - }; - - PostScriptToken.LBRACE = new PostScriptToken(PostScriptTokenTypes.LBRACE, - '{'); - PostScriptToken.RBRACE = new PostScriptToken(PostScriptTokenTypes.RBRACE, - '}'); - PostScriptToken.IF = new PostScriptToken(PostScriptTokenTypes.IF, 'IF'); - PostScriptToken.IFELSE = new PostScriptToken(PostScriptTokenTypes.IFELSE, - 'IFELSE'); - return PostScriptToken; -})(); - -var PostScriptLexer = (function PostScriptLexerClosure() { - function PostScriptLexer(stream) { - this.stream = stream; - this.nextChar(); - - this.strBuf = []; - } - PostScriptLexer.prototype = { - nextChar: function PostScriptLexer_nextChar() { - return (this.currentChar = this.stream.getByte()); - }, - getToken: function PostScriptLexer_getToken() { - var comment = false; - var ch = this.currentChar; - - // skip comments - while (true) { - if (ch < 0) { - return EOF; + var groupSubtype = group.get('S'); + var colorSpace; + if (isName(groupSubtype) && groupSubtype.name === 'Transparency') { + groupOptions.isolated = (group.get('I') || false); + groupOptions.knockout = (group.get('K') || false); + colorSpace = (group.has('CS') ? + ColorSpace.parse(group.get('CS'), this.xref, resources) : null); } - if (comment) { - if (ch === 0x0A || ch === 0x0D) { - comment = false; + if (smask && smask.backdrop) { + colorSpace = colorSpace || ColorSpace.singletons.rgb; + smask.backdrop = colorSpace.getRgb(smask.backdrop, 0); + } + + operatorList.addOp(OPS.beginGroup, [groupOptions]); + } + + operatorList.addOp(OPS.paintFormXObjectBegin, [matrix, bbox]); + + return this.getOperatorList(xobj, task, + (xobj.dict.get('Resources') || resources), operatorList, initialState). + then(function () { + operatorList.addOp(OPS.paintFormXObjectEnd, []); + + if (group) { + operatorList.addOp(OPS.endGroup, [groupOptions]); } - } else if (ch === 0x25) { // '%' - comment = true; - } else if (!Lexer.isSpace(ch)) { - break; - } - ch = this.nextChar(); - } - switch (ch | 0) { - case 0x30: case 0x31: case 0x32: case 0x33: case 0x34: // '0'-'4' - case 0x35: case 0x36: case 0x37: case 0x38: case 0x39: // '5'-'9' - case 0x2B: case 0x2D: case 0x2E: // '+', '-', '.' - return new PostScriptToken(PostScriptTokenTypes.NUMBER, - this.getNumber()); - case 0x7B: // '{' - this.nextChar(); - return PostScriptToken.LBRACE; - case 0x7D: // '}' - this.nextChar(); - return PostScriptToken.RBRACE; - } - // operator - var strBuf = this.strBuf; - strBuf.length = 0; - strBuf[0] = String.fromCharCode(ch); - - while ((ch = this.nextChar()) >= 0 && // and 'A'-'Z', 'a'-'z' - ((ch >= 0x41 && ch <= 0x5A) || (ch >= 0x61 && ch <= 0x7A))) { - strBuf.push(String.fromCharCode(ch)); - } - var str = strBuf.join(''); - switch (str.toLowerCase()) { - case 'if': - return PostScriptToken.IF; - case 'ifelse': - return PostScriptToken.IFELSE; - default: - return PostScriptToken.getOperator(str); - } + }); }, - getNumber: function PostScriptLexer_getNumber() { - var ch = this.currentChar; - var strBuf = this.strBuf; - strBuf.length = 0; - strBuf[0] = String.fromCharCode(ch); - while ((ch = this.nextChar()) >= 0) { - if ((ch >= 0x30 && ch <= 0x39) || // '0'-'9' - ch === 0x2D || ch === 0x2E) { // '-', '.' - strBuf.push(String.fromCharCode(ch)); - } else { - break; - } - } - var value = parseFloat(strBuf.join('')); - if (isNaN(value)) { - error('Invalid floating point number: ' + value); - } - return value; - } - }; - return PostScriptLexer; -})(); + buildPaintImageXObject: + function PartialEvaluator_buildPaintImageXObject(resources, image, + inline, operatorList, + cacheKey, imageCache) { + var self = this; + var dict = image.dict; + var w = dict.get('Width', 'W'); + var h = dict.get('Height', 'H'); - -var Stream = (function StreamClosure() { - function Stream(arrayBuffer, start, length, dict) { - this.bytes = (arrayBuffer instanceof Uint8Array ? - arrayBuffer : new Uint8Array(arrayBuffer)); - this.start = start || 0; - this.pos = this.start; - this.end = (start + length) || this.bytes.length; - this.dict = dict; - } - - // required methods for a stream. if a particular stream does not - // implement these, an error should be thrown - Stream.prototype = { - get length() { - return this.end - this.start; - }, - get isEmpty() { - return this.length === 0; - }, - getByte: function Stream_getByte() { - if (this.pos >= this.end) { - return -1; - } - return this.bytes[this.pos++]; - }, - getUint16: function Stream_getUint16() { - var b0 = this.getByte(); - var b1 = this.getByte(); - if (b0 === -1 || b1 === -1) { - return -1; - } - return (b0 << 8) + b1; - }, - getInt32: function Stream_getInt32() { - var b0 = this.getByte(); - var b1 = this.getByte(); - var b2 = this.getByte(); - var b3 = this.getByte(); - return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3; - }, - // returns subarray of original buffer - // should only be read - getBytes: function Stream_getBytes(length) { - var bytes = this.bytes; - var pos = this.pos; - var strEnd = this.end; - - if (!length) { - return bytes.subarray(pos, strEnd); - } - var end = pos + length; - if (end > strEnd) { - end = strEnd; - } - this.pos = end; - return bytes.subarray(pos, end); - }, - peekByte: function Stream_peekByte() { - var peekedByte = this.getByte(); - this.pos--; - return peekedByte; - }, - peekBytes: function Stream_peekBytes(length) { - var bytes = this.getBytes(length); - this.pos -= bytes.length; - return bytes; - }, - skip: function Stream_skip(n) { - if (!n) { - n = 1; - } - this.pos += n; - }, - reset: function Stream_reset() { - this.pos = this.start; - }, - moveStart: function Stream_moveStart() { - this.start = this.pos; - }, - makeSubStream: function Stream_makeSubStream(start, length, dict) { - return new Stream(this.bytes.buffer, start, length, dict); - }, - isStream: true - }; - - return Stream; -})(); - -var StringStream = (function StringStreamClosure() { - function StringStream(str) { - var length = str.length; - var bytes = new Uint8Array(length); - for (var n = 0; n < length; ++n) { - bytes[n] = str.charCodeAt(n); - } - Stream.call(this, bytes); - } - - StringStream.prototype = Stream.prototype; - - return StringStream; -})(); - -// super class for the decoding streams -var DecodeStream = (function DecodeStreamClosure() { - // Lots of DecodeStreams are created whose buffers are never used. For these - // we share a single empty buffer. This is (a) space-efficient and (b) avoids - // having special cases that would be required if we used |null| for an empty - // buffer. - var emptyBuffer = new Uint8Array(0); - - function DecodeStream(maybeMinBufferLength) { - this.pos = 0; - this.bufferLength = 0; - this.eof = false; - this.buffer = emptyBuffer; - this.minBufferLength = 512; - if (maybeMinBufferLength) { - // Compute the first power of two that is as big as maybeMinBufferLength. - while (this.minBufferLength < maybeMinBufferLength) { - this.minBufferLength *= 2; - } - } - } - - DecodeStream.prototype = { - get isEmpty() { - while (!this.eof && this.bufferLength === 0) { - this.readBlock(); - } - return this.bufferLength === 0; - }, - ensureBuffer: function DecodeStream_ensureBuffer(requested) { - var buffer = this.buffer; - if (requested <= buffer.byteLength) { - return buffer; - } - var size = this.minBufferLength; - while (size < requested) { - size *= 2; - } - var buffer2 = new Uint8Array(size); - buffer2.set(buffer); - return (this.buffer = buffer2); - }, - getByte: function DecodeStream_getByte() { - var pos = this.pos; - while (this.bufferLength <= pos) { - if (this.eof) { - return -1; - } - this.readBlock(); - } - return this.buffer[this.pos++]; - }, - getUint16: function DecodeStream_getUint16() { - var b0 = this.getByte(); - var b1 = this.getByte(); - if (b0 === -1 || b1 === -1) { - return -1; - } - return (b0 << 8) + b1; - }, - getInt32: function DecodeStream_getInt32() { - var b0 = this.getByte(); - var b1 = this.getByte(); - var b2 = this.getByte(); - var b3 = this.getByte(); - return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3; - }, - getBytes: function DecodeStream_getBytes(length) { - var end, pos = this.pos; - - if (length) { - this.ensureBuffer(pos + length); - end = pos + length; - - while (!this.eof && this.bufferLength < end) { - this.readBlock(); - } - var bufEnd = this.bufferLength; - if (end > bufEnd) { - end = bufEnd; - } - } else { - while (!this.eof) { - this.readBlock(); - } - end = this.bufferLength; - } - - this.pos = end; - return this.buffer.subarray(pos, end); - }, - peekByte: function DecodeStream_peekByte() { - var peekedByte = this.getByte(); - this.pos--; - return peekedByte; - }, - peekBytes: function DecodeStream_peekBytes(length) { - var bytes = this.getBytes(length); - this.pos -= bytes.length; - return bytes; - }, - makeSubStream: function DecodeStream_makeSubStream(start, length, dict) { - var end = start + length; - while (this.bufferLength <= end && !this.eof) { - this.readBlock(); - } - return new Stream(this.buffer, start, length, dict); - }, - skip: function DecodeStream_skip(n) { - if (!n) { - n = 1; - } - this.pos += n; - }, - reset: function DecodeStream_reset() { - this.pos = 0; - }, - getBaseStreams: function DecodeStream_getBaseStreams() { - if (this.str && this.str.getBaseStreams) { - return this.str.getBaseStreams(); - } - return []; - } - }; - - return DecodeStream; -})(); - -var StreamsSequenceStream = (function StreamsSequenceStreamClosure() { - function StreamsSequenceStream(streams) { - this.streams = streams; - DecodeStream.call(this, /* maybeLength = */ null); - } - - StreamsSequenceStream.prototype = Object.create(DecodeStream.prototype); - - StreamsSequenceStream.prototype.readBlock = - function streamSequenceStreamReadBlock() { - - var streams = this.streams; - if (streams.length === 0) { - this.eof = true; - return; - } - var stream = streams.shift(); - var chunk = stream.getBytes(); - var bufferLength = this.bufferLength; - var newLength = bufferLength + chunk.length; - var buffer = this.ensureBuffer(newLength); - buffer.set(chunk, bufferLength); - this.bufferLength = newLength; - }; - - StreamsSequenceStream.prototype.getBaseStreams = - function StreamsSequenceStream_getBaseStreams() { - - var baseStreams = []; - for (var i = 0, ii = this.streams.length; i < ii; i++) { - var stream = this.streams[i]; - if (stream.getBaseStreams) { - Util.appendToArray(baseStreams, stream.getBaseStreams()); - } - } - return baseStreams; - }; - - return StreamsSequenceStream; -})(); - -var FlateStream = (function FlateStreamClosure() { - var codeLenCodeMap = new Int32Array([ - 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 - ]); - - var lengthDecode = new Int32Array([ - 0x00003, 0x00004, 0x00005, 0x00006, 0x00007, 0x00008, 0x00009, 0x0000a, - 0x1000b, 0x1000d, 0x1000f, 0x10011, 0x20013, 0x20017, 0x2001b, 0x2001f, - 0x30023, 0x3002b, 0x30033, 0x3003b, 0x40043, 0x40053, 0x40063, 0x40073, - 0x50083, 0x500a3, 0x500c3, 0x500e3, 0x00102, 0x00102, 0x00102 - ]); - - var distDecode = new Int32Array([ - 0x00001, 0x00002, 0x00003, 0x00004, 0x10005, 0x10007, 0x20009, 0x2000d, - 0x30011, 0x30019, 0x40021, 0x40031, 0x50041, 0x50061, 0x60081, 0x600c1, - 0x70101, 0x70181, 0x80201, 0x80301, 0x90401, 0x90601, 0xa0801, 0xa0c01, - 0xb1001, 0xb1801, 0xc2001, 0xc3001, 0xd4001, 0xd6001 - ]); - - var fixedLitCodeTab = [new Int32Array([ - 0x70100, 0x80050, 0x80010, 0x80118, 0x70110, 0x80070, 0x80030, 0x900c0, - 0x70108, 0x80060, 0x80020, 0x900a0, 0x80000, 0x80080, 0x80040, 0x900e0, - 0x70104, 0x80058, 0x80018, 0x90090, 0x70114, 0x80078, 0x80038, 0x900d0, - 0x7010c, 0x80068, 0x80028, 0x900b0, 0x80008, 0x80088, 0x80048, 0x900f0, - 0x70102, 0x80054, 0x80014, 0x8011c, 0x70112, 0x80074, 0x80034, 0x900c8, - 0x7010a, 0x80064, 0x80024, 0x900a8, 0x80004, 0x80084, 0x80044, 0x900e8, - 0x70106, 0x8005c, 0x8001c, 0x90098, 0x70116, 0x8007c, 0x8003c, 0x900d8, - 0x7010e, 0x8006c, 0x8002c, 0x900b8, 0x8000c, 0x8008c, 0x8004c, 0x900f8, - 0x70101, 0x80052, 0x80012, 0x8011a, 0x70111, 0x80072, 0x80032, 0x900c4, - 0x70109, 0x80062, 0x80022, 0x900a4, 0x80002, 0x80082, 0x80042, 0x900e4, - 0x70105, 0x8005a, 0x8001a, 0x90094, 0x70115, 0x8007a, 0x8003a, 0x900d4, - 0x7010d, 0x8006a, 0x8002a, 0x900b4, 0x8000a, 0x8008a, 0x8004a, 0x900f4, - 0x70103, 0x80056, 0x80016, 0x8011e, 0x70113, 0x80076, 0x80036, 0x900cc, - 0x7010b, 0x80066, 0x80026, 0x900ac, 0x80006, 0x80086, 0x80046, 0x900ec, - 0x70107, 0x8005e, 0x8001e, 0x9009c, 0x70117, 0x8007e, 0x8003e, 0x900dc, - 0x7010f, 0x8006e, 0x8002e, 0x900bc, 0x8000e, 0x8008e, 0x8004e, 0x900fc, - 0x70100, 0x80051, 0x80011, 0x80119, 0x70110, 0x80071, 0x80031, 0x900c2, - 0x70108, 0x80061, 0x80021, 0x900a2, 0x80001, 0x80081, 0x80041, 0x900e2, - 0x70104, 0x80059, 0x80019, 0x90092, 0x70114, 0x80079, 0x80039, 0x900d2, - 0x7010c, 0x80069, 0x80029, 0x900b2, 0x80009, 0x80089, 0x80049, 0x900f2, - 0x70102, 0x80055, 0x80015, 0x8011d, 0x70112, 0x80075, 0x80035, 0x900ca, - 0x7010a, 0x80065, 0x80025, 0x900aa, 0x80005, 0x80085, 0x80045, 0x900ea, - 0x70106, 0x8005d, 0x8001d, 0x9009a, 0x70116, 0x8007d, 0x8003d, 0x900da, - 0x7010e, 0x8006d, 0x8002d, 0x900ba, 0x8000d, 0x8008d, 0x8004d, 0x900fa, - 0x70101, 0x80053, 0x80013, 0x8011b, 0x70111, 0x80073, 0x80033, 0x900c6, - 0x70109, 0x80063, 0x80023, 0x900a6, 0x80003, 0x80083, 0x80043, 0x900e6, - 0x70105, 0x8005b, 0x8001b, 0x90096, 0x70115, 0x8007b, 0x8003b, 0x900d6, - 0x7010d, 0x8006b, 0x8002b, 0x900b6, 0x8000b, 0x8008b, 0x8004b, 0x900f6, - 0x70103, 0x80057, 0x80017, 0x8011f, 0x70113, 0x80077, 0x80037, 0x900ce, - 0x7010b, 0x80067, 0x80027, 0x900ae, 0x80007, 0x80087, 0x80047, 0x900ee, - 0x70107, 0x8005f, 0x8001f, 0x9009e, 0x70117, 0x8007f, 0x8003f, 0x900de, - 0x7010f, 0x8006f, 0x8002f, 0x900be, 0x8000f, 0x8008f, 0x8004f, 0x900fe, - 0x70100, 0x80050, 0x80010, 0x80118, 0x70110, 0x80070, 0x80030, 0x900c1, - 0x70108, 0x80060, 0x80020, 0x900a1, 0x80000, 0x80080, 0x80040, 0x900e1, - 0x70104, 0x80058, 0x80018, 0x90091, 0x70114, 0x80078, 0x80038, 0x900d1, - 0x7010c, 0x80068, 0x80028, 0x900b1, 0x80008, 0x80088, 0x80048, 0x900f1, - 0x70102, 0x80054, 0x80014, 0x8011c, 0x70112, 0x80074, 0x80034, 0x900c9, - 0x7010a, 0x80064, 0x80024, 0x900a9, 0x80004, 0x80084, 0x80044, 0x900e9, - 0x70106, 0x8005c, 0x8001c, 0x90099, 0x70116, 0x8007c, 0x8003c, 0x900d9, - 0x7010e, 0x8006c, 0x8002c, 0x900b9, 0x8000c, 0x8008c, 0x8004c, 0x900f9, - 0x70101, 0x80052, 0x80012, 0x8011a, 0x70111, 0x80072, 0x80032, 0x900c5, - 0x70109, 0x80062, 0x80022, 0x900a5, 0x80002, 0x80082, 0x80042, 0x900e5, - 0x70105, 0x8005a, 0x8001a, 0x90095, 0x70115, 0x8007a, 0x8003a, 0x900d5, - 0x7010d, 0x8006a, 0x8002a, 0x900b5, 0x8000a, 0x8008a, 0x8004a, 0x900f5, - 0x70103, 0x80056, 0x80016, 0x8011e, 0x70113, 0x80076, 0x80036, 0x900cd, - 0x7010b, 0x80066, 0x80026, 0x900ad, 0x80006, 0x80086, 0x80046, 0x900ed, - 0x70107, 0x8005e, 0x8001e, 0x9009d, 0x70117, 0x8007e, 0x8003e, 0x900dd, - 0x7010f, 0x8006e, 0x8002e, 0x900bd, 0x8000e, 0x8008e, 0x8004e, 0x900fd, - 0x70100, 0x80051, 0x80011, 0x80119, 0x70110, 0x80071, 0x80031, 0x900c3, - 0x70108, 0x80061, 0x80021, 0x900a3, 0x80001, 0x80081, 0x80041, 0x900e3, - 0x70104, 0x80059, 0x80019, 0x90093, 0x70114, 0x80079, 0x80039, 0x900d3, - 0x7010c, 0x80069, 0x80029, 0x900b3, 0x80009, 0x80089, 0x80049, 0x900f3, - 0x70102, 0x80055, 0x80015, 0x8011d, 0x70112, 0x80075, 0x80035, 0x900cb, - 0x7010a, 0x80065, 0x80025, 0x900ab, 0x80005, 0x80085, 0x80045, 0x900eb, - 0x70106, 0x8005d, 0x8001d, 0x9009b, 0x70116, 0x8007d, 0x8003d, 0x900db, - 0x7010e, 0x8006d, 0x8002d, 0x900bb, 0x8000d, 0x8008d, 0x8004d, 0x900fb, - 0x70101, 0x80053, 0x80013, 0x8011b, 0x70111, 0x80073, 0x80033, 0x900c7, - 0x70109, 0x80063, 0x80023, 0x900a7, 0x80003, 0x80083, 0x80043, 0x900e7, - 0x70105, 0x8005b, 0x8001b, 0x90097, 0x70115, 0x8007b, 0x8003b, 0x900d7, - 0x7010d, 0x8006b, 0x8002b, 0x900b7, 0x8000b, 0x8008b, 0x8004b, 0x900f7, - 0x70103, 0x80057, 0x80017, 0x8011f, 0x70113, 0x80077, 0x80037, 0x900cf, - 0x7010b, 0x80067, 0x80027, 0x900af, 0x80007, 0x80087, 0x80047, 0x900ef, - 0x70107, 0x8005f, 0x8001f, 0x9009f, 0x70117, 0x8007f, 0x8003f, 0x900df, - 0x7010f, 0x8006f, 0x8002f, 0x900bf, 0x8000f, 0x8008f, 0x8004f, 0x900ff - ]), 9]; - - var fixedDistCodeTab = [new Int32Array([ - 0x50000, 0x50010, 0x50008, 0x50018, 0x50004, 0x50014, 0x5000c, 0x5001c, - 0x50002, 0x50012, 0x5000a, 0x5001a, 0x50006, 0x50016, 0x5000e, 0x00000, - 0x50001, 0x50011, 0x50009, 0x50019, 0x50005, 0x50015, 0x5000d, 0x5001d, - 0x50003, 0x50013, 0x5000b, 0x5001b, 0x50007, 0x50017, 0x5000f, 0x00000 - ]), 5]; - - function FlateStream(str, maybeLength) { - this.str = str; - this.dict = str.dict; - - var cmf = str.getByte(); - var flg = str.getByte(); - if (cmf === -1 || flg === -1) { - error('Invalid header in flate stream: ' + cmf + ', ' + flg); - } - if ((cmf & 0x0f) !== 0x08) { - error('Unknown compression method in flate stream: ' + cmf + ', ' + flg); - } - if ((((cmf << 8) + flg) % 31) !== 0) { - error('Bad FCHECK in flate stream: ' + cmf + ', ' + flg); - } - if (flg & 0x20) { - error('FDICT bit set in flate stream: ' + cmf + ', ' + flg); - } - - this.codeSize = 0; - this.codeBuf = 0; - - DecodeStream.call(this, maybeLength); - } - - FlateStream.prototype = Object.create(DecodeStream.prototype); - - FlateStream.prototype.getBits = function FlateStream_getBits(bits) { - var str = this.str; - var codeSize = this.codeSize; - var codeBuf = this.codeBuf; - - var b; - while (codeSize < bits) { - if ((b = str.getByte()) === -1) { - error('Bad encoding in flate stream'); - } - codeBuf |= b << codeSize; - codeSize += 8; - } - b = codeBuf & ((1 << bits) - 1); - this.codeBuf = codeBuf >> bits; - this.codeSize = codeSize -= bits; - - return b; - }; - - FlateStream.prototype.getCode = function FlateStream_getCode(table) { - var str = this.str; - var codes = table[0]; - var maxLen = table[1]; - var codeSize = this.codeSize; - var codeBuf = this.codeBuf; - - var b; - while (codeSize < maxLen) { - if ((b = str.getByte()) === -1) { - // premature end of stream. code might however still be valid. - // codeSize < codeLen check below guards against incomplete codeVal. - break; - } - codeBuf |= (b << codeSize); - codeSize += 8; - } - var code = codes[codeBuf & ((1 << maxLen) - 1)]; - var codeLen = code >> 16; - var codeVal = code & 0xffff; - if (codeLen < 1 || codeSize < codeLen) { - error('Bad encoding in flate stream'); - } - this.codeBuf = (codeBuf >> codeLen); - this.codeSize = (codeSize - codeLen); - return codeVal; - }; - - FlateStream.prototype.generateHuffmanTable = - function flateStreamGenerateHuffmanTable(lengths) { - var n = lengths.length; - - // find max code length - var maxLen = 0; - var i; - for (i = 0; i < n; ++i) { - if (lengths[i] > maxLen) { - maxLen = lengths[i]; - } - } - - // build the table - var size = 1 << maxLen; - var codes = new Int32Array(size); - for (var len = 1, code = 0, skip = 2; - len <= maxLen; - ++len, code <<= 1, skip <<= 1) { - for (var val = 0; val < n; ++val) { - if (lengths[val] === len) { - // bit-reverse the code - var code2 = 0; - var t = code; - for (i = 0; i < len; ++i) { - code2 = (code2 << 1) | (t & 1); - t >>= 1; - } - - // fill the table entries - for (i = code2; i < size; i += skip) { - codes[i] = (len << 16) | val; - } - ++code; - } - } - } - - return [codes, maxLen]; - }; - - FlateStream.prototype.readBlock = function FlateStream_readBlock() { - var buffer, len; - var str = this.str; - // read block header - var hdr = this.getBits(3); - if (hdr & 1) { - this.eof = true; - } - hdr >>= 1; - - if (hdr === 0) { // uncompressed block - var b; - - if ((b = str.getByte()) === -1) { - error('Bad block header in flate stream'); - } - var blockLen = b; - if ((b = str.getByte()) === -1) { - error('Bad block header in flate stream'); - } - blockLen |= (b << 8); - if ((b = str.getByte()) === -1) { - error('Bad block header in flate stream'); - } - var check = b; - if ((b = str.getByte()) === -1) { - error('Bad block header in flate stream'); - } - check |= (b << 8); - if (check !== (~blockLen & 0xffff) && - (blockLen !== 0 || check !== 0)) { - // Ignoring error for bad "empty" block (see issue 1277) - error('Bad uncompressed block length in flate stream'); - } - - this.codeBuf = 0; - this.codeSize = 0; - - var bufferLength = this.bufferLength; - buffer = this.ensureBuffer(bufferLength + blockLen); - var end = bufferLength + blockLen; - this.bufferLength = end; - if (blockLen === 0) { - if (str.peekByte() === -1) { - this.eof = true; - } - } else { - for (var n = bufferLength; n < end; ++n) { - if ((b = str.getByte()) === -1) { - this.eof = true; - break; - } - buffer[n] = b; - } - } - return; - } - - var litCodeTable; - var distCodeTable; - if (hdr === 1) { // compressed block, fixed codes - litCodeTable = fixedLitCodeTab; - distCodeTable = fixedDistCodeTab; - } else if (hdr === 2) { // compressed block, dynamic codes - var numLitCodes = this.getBits(5) + 257; - var numDistCodes = this.getBits(5) + 1; - var numCodeLenCodes = this.getBits(4) + 4; - - // build the code lengths code table - var codeLenCodeLengths = new Uint8Array(codeLenCodeMap.length); - - var i; - for (i = 0; i < numCodeLenCodes; ++i) { - codeLenCodeLengths[codeLenCodeMap[i]] = this.getBits(3); - } - var codeLenCodeTab = this.generateHuffmanTable(codeLenCodeLengths); - - // build the literal and distance code tables - len = 0; - i = 0; - var codes = numLitCodes + numDistCodes; - var codeLengths = new Uint8Array(codes); - var bitsLength, bitsOffset, what; - while (i < codes) { - var code = this.getCode(codeLenCodeTab); - if (code === 16) { - bitsLength = 2; bitsOffset = 3; what = len; - } else if (code === 17) { - bitsLength = 3; bitsOffset = 3; what = (len = 0); - } else if (code === 18) { - bitsLength = 7; bitsOffset = 11; what = (len = 0); - } else { - codeLengths[i++] = len = code; - continue; - } - - var repeatLength = this.getBits(bitsLength) + bitsOffset; - while (repeatLength-- > 0) { - codeLengths[i++] = what; - } - } - - litCodeTable = - this.generateHuffmanTable(codeLengths.subarray(0, numLitCodes)); - distCodeTable = - this.generateHuffmanTable(codeLengths.subarray(numLitCodes, codes)); - } else { - error('Unknown block type in flate stream'); - } - - buffer = this.buffer; - var limit = buffer ? buffer.length : 0; - var pos = this.bufferLength; - while (true) { - var code1 = this.getCode(litCodeTable); - if (code1 < 256) { - if (pos + 1 >= limit) { - buffer = this.ensureBuffer(pos + 1); - limit = buffer.length; - } - buffer[pos++] = code1; - continue; - } - if (code1 === 256) { - this.bufferLength = pos; + if (!(w && isNum(w)) || !(h && isNum(h))) { + warn('Image dimensions are missing, or not numbers.'); return; } - code1 -= 257; - code1 = lengthDecode[code1]; - var code2 = code1 >> 16; - if (code2 > 0) { - code2 = this.getBits(code2); + if (PDFJS.maxImageSize !== -1 && w * h > PDFJS.maxImageSize) { + warn('Image exceeded maximum allowed size and was removed.'); + return; } - len = (code1 & 0xffff) + code2; - code1 = this.getCode(distCodeTable); - code1 = distDecode[code1]; - code2 = code1 >> 16; - if (code2 > 0) { - code2 = this.getBits(code2); - } - var dist = (code1 & 0xffff) + code2; - if (pos + len >= limit) { - buffer = this.ensureBuffer(pos + len); - limit = buffer.length; - } - for (var k = 0; k < len; ++k, ++pos) { - buffer[pos] = buffer[pos - dist]; - } - } - }; - return FlateStream; -})(); + var imageMask = (dict.get('ImageMask', 'IM') || false); + var imgData, args; + if (imageMask) { + // This depends on a tmpCanvas being filled with the + // current fillStyle, such that processing the pixel + // data can't be done here. Instead of creating a + // complete PDFImage, only read the information needed + // for later. -var PredictorStream = (function PredictorStreamClosure() { - function PredictorStream(str, maybeLength, params) { - var predictor = this.predictor = params.get('Predictor') || 1; + var width = dict.get('Width', 'W'); + var height = dict.get('Height', 'H'); + var bitStrideLength = (width + 7) >> 3; + var imgArray = image.getBytes(bitStrideLength * height); + var decode = dict.get('Decode', 'D'); + var inverseDecode = (!!decode && decode[0] > 0); - if (predictor <= 1) { - return str; // no prediction - } - if (predictor !== 2 && (predictor < 10 || predictor > 15)) { - error('Unsupported predictor: ' + predictor); - } - - if (predictor === 2) { - this.readBlock = this.readBlockTiff; - } else { - this.readBlock = this.readBlockPng; - } - - this.str = str; - this.dict = str.dict; - - var colors = this.colors = params.get('Colors') || 1; - var bits = this.bits = params.get('BitsPerComponent') || 8; - var columns = this.columns = params.get('Columns') || 1; - - this.pixBytes = (colors * bits + 7) >> 3; - this.rowBytes = (columns * colors * bits + 7) >> 3; - - DecodeStream.call(this, maybeLength); - return this; - } - - PredictorStream.prototype = Object.create(DecodeStream.prototype); - - PredictorStream.prototype.readBlockTiff = - function predictorStreamReadBlockTiff() { - var rowBytes = this.rowBytes; - - var bufferLength = this.bufferLength; - var buffer = this.ensureBuffer(bufferLength + rowBytes); - - var bits = this.bits; - var colors = this.colors; - - var rawBytes = this.str.getBytes(rowBytes); - this.eof = !rawBytes.length; - if (this.eof) { - return; - } - - var inbuf = 0, outbuf = 0; - var inbits = 0, outbits = 0; - var pos = bufferLength; - var i; - - if (bits === 1) { - for (i = 0; i < rowBytes; ++i) { - var c = rawBytes[i]; - inbuf = (inbuf << 8) | c; - // bitwise addition is exclusive or - // first shift inbuf and then add - buffer[pos++] = (c ^ (inbuf >> colors)) & 0xFF; - // truncate inbuf (assumes colors < 16) - inbuf &= 0xFFFF; - } - } else if (bits === 8) { - for (i = 0; i < colors; ++i) { - buffer[pos++] = rawBytes[i]; - } - for (; i < rowBytes; ++i) { - buffer[pos] = buffer[pos - colors] + rawBytes[i]; - pos++; - } - } else { - var compArray = new Uint8Array(colors + 1); - var bitMask = (1 << bits) - 1; - var j = 0, k = bufferLength; - var columns = this.columns; - for (i = 0; i < columns; ++i) { - for (var kk = 0; kk < colors; ++kk) { - if (inbits < bits) { - inbuf = (inbuf << 8) | (rawBytes[j++] & 0xFF); - inbits += 8; - } - compArray[kk] = (compArray[kk] + - (inbuf >> (inbits - bits))) & bitMask; - inbits -= bits; - outbuf = (outbuf << bits) | compArray[kk]; - outbits += bits; - if (outbits >= 8) { - buffer[k++] = (outbuf >> (outbits - 8)) & 0xFF; - outbits -= 8; - } + imgData = PDFImage.createMask(imgArray, width, height, + image instanceof DecodeStream, + inverseDecode); + imgData.cached = true; + args = [imgData]; + operatorList.addOp(OPS.paintImageMaskXObject, args); + if (cacheKey) { + imageCache[cacheKey] = { + fn: OPS.paintImageMaskXObject, + args: args + }; } + return; } - if (outbits > 0) { - buffer[k++] = (outbuf << (8 - outbits)) + - (inbuf & ((1 << (8 - outbits)) - 1)); + + var softMask = (dict.get('SMask', 'SM') || false); + var mask = (dict.get('Mask') || false); + + var SMALL_IMAGE_DIMENSIONS = 200; + // Inlining small images into the queue as RGB data + if (inline && !softMask && !mask && !(image instanceof JpegStream) && + (w + h) < SMALL_IMAGE_DIMENSIONS) { + var imageObj = new PDFImage(this.xref, resources, image, + inline, null, null); + // We force the use of RGBA_32BPP images here, because we can't handle + // any other kind. + imgData = imageObj.createImageData(/* forceRGBA = */ true); + operatorList.addOp(OPS.paintInlineImageXObject, [imgData]); + return; } - } - this.bufferLength += rowBytes; - }; - PredictorStream.prototype.readBlockPng = - function predictorStreamReadBlockPng() { + // If there is no imageMask, create the PDFImage and a lot + // of image processing can be done here. + var uniquePrefix = (this.uniquePrefix || ''); + var objId = 'img_' + uniquePrefix + (++this.idCounters.obj); + operatorList.addDependency(objId); + args = [objId, w, h]; - var rowBytes = this.rowBytes; - var pixBytes = this.pixBytes; - - var predictor = this.str.getByte(); - var rawBytes = this.str.getBytes(rowBytes); - this.eof = !rawBytes.length; - if (this.eof) { - return; - } - - var bufferLength = this.bufferLength; - var buffer = this.ensureBuffer(bufferLength + rowBytes); - - var prevRow = buffer.subarray(bufferLength - rowBytes, bufferLength); - if (prevRow.length === 0) { - prevRow = new Uint8Array(rowBytes); - } - - var i, j = bufferLength, up, c; - switch (predictor) { - case 0: - for (i = 0; i < rowBytes; ++i) { - buffer[j++] = rawBytes[i]; - } - break; - case 1: - for (i = 0; i < pixBytes; ++i) { - buffer[j++] = rawBytes[i]; - } - for (; i < rowBytes; ++i) { - buffer[j] = (buffer[j - pixBytes] + rawBytes[i]) & 0xFF; - j++; - } - break; - case 2: - for (i = 0; i < rowBytes; ++i) { - buffer[j++] = (prevRow[i] + rawBytes[i]) & 0xFF; - } - break; - case 3: - for (i = 0; i < pixBytes; ++i) { - buffer[j++] = (prevRow[i] >> 1) + rawBytes[i]; - } - for (; i < rowBytes; ++i) { - buffer[j] = (((prevRow[i] + buffer[j - pixBytes]) >> 1) + - rawBytes[i]) & 0xFF; - j++; - } - break; - case 4: - // we need to save the up left pixels values. the simplest way - // is to create a new buffer - for (i = 0; i < pixBytes; ++i) { - up = prevRow[i]; - c = rawBytes[i]; - buffer[j++] = up + c; - } - for (; i < rowBytes; ++i) { - up = prevRow[i]; - var upLeft = prevRow[i - pixBytes]; - var left = buffer[j - pixBytes]; - var p = left + up - upLeft; - - var pa = p - left; - if (pa < 0) { - pa = -pa; - } - var pb = p - up; - if (pb < 0) { - pb = -pb; - } - var pc = p - upLeft; - if (pc < 0) { - pc = -pc; - } - - c = rawBytes[i]; - if (pa <= pb && pa <= pc) { - buffer[j++] = left + c; - } else if (pb <= pc) { - buffer[j++] = up + c; - } else { - buffer[j++] = upLeft + c; - } - } - break; - default: - error('Unsupported predictor: ' + predictor); - } - this.bufferLength += rowBytes; - }; - - return PredictorStream; -})(); - -/** - * Depending on the type of JPEG a JpegStream is handled in different ways. For - * JPEG's that are supported natively such as DeviceGray and DeviceRGB the image - * data is stored and then loaded by the browser. For unsupported JPEG's we use - * a library to decode these images and the stream behaves like all the other - * DecodeStreams. - */ -var JpegStream = (function JpegStreamClosure() { - function JpegStream(stream, maybeLength, dict, xref) { - // Some images may contain 'junk' before the SOI (start-of-image) marker. - // Note: this seems to mainly affect inline images. - var ch; - while ((ch = stream.getByte()) !== -1) { - if (ch === 0xFF) { // Find the first byte of the SOI marker (0xFFD8). - stream.skip(-1); // Reset the stream position to the SOI. - break; + if (!softMask && !mask && image instanceof JpegStream && + image.isNativelySupported(this.xref, resources)) { + // These JPEGs don't need any more processing so we can just send it. + operatorList.addOp(OPS.paintJpegXObject, args); + this.handler.send('obj', + [objId, this.pageIndex, 'JpegStream', image.getIR()]); + return; } - } - this.stream = stream; - this.maybeLength = maybeLength; - this.dict = dict; - DecodeStream.call(this, maybeLength); - } + PDFImage.buildImage(self.handler, self.xref, resources, image, inline). + then(function(imageObj) { + var imgData = imageObj.createImageData(/* forceRGBA = */ false); + self.handler.send('obj', [objId, self.pageIndex, 'Image', imgData], + [imgData.data.buffer]); + }).then(undefined, function (reason) { + warn('Unable to decode image: ' + reason); + self.handler.send('obj', [objId, self.pageIndex, 'Image', null]); + }); - JpegStream.prototype = Object.create(DecodeStream.prototype); - - Object.defineProperty(JpegStream.prototype, 'bytes', { - get: function JpegStream_bytes() { - // If this.maybeLength is null, we'll get the entire stream. - return shadow(this, 'bytes', this.stream.getBytes(this.maybeLength)); + operatorList.addOp(OPS.paintImageXObject, args); + if (cacheKey) { + imageCache[cacheKey] = { + fn: OPS.paintImageXObject, + args: args + }; + } }, - configurable: true - }); - JpegStream.prototype.ensureBuffer = function JpegStream_ensureBuffer(req) { - if (this.bufferLength) { - return; - } - try { - var jpegImage = new JpegImage(); + handleSMask: function PartialEvaluator_handleSmask(smask, resources, + operatorList, task, + stateManager) { + var smaskContent = smask.get('G'); + var smaskOptions = { + subtype: smask.get('S').name, + backdrop: smask.get('BC') + }; - // checking if values needs to be transformed before conversion - if (this.forceRGB && this.dict && isArray(this.dict.get('Decode'))) { - var decodeArr = this.dict.get('Decode'); - var bitsPerComponent = this.dict.get('BitsPerComponent') || 8; - var decodeArrLength = decodeArr.length; - var transform = new Int32Array(decodeArrLength); - var transformNeeded = false; - var maxValue = (1 << bitsPerComponent) - 1; - for (var i = 0; i < decodeArrLength; i += 2) { - transform[i] = ((decodeArr[i + 1] - decodeArr[i]) * 256) | 0; - transform[i + 1] = (decodeArr[i] * maxValue) | 0; - if (transform[i] !== 256 || transform[i + 1] !== 0) { - transformNeeded = true; - } - } - if (transformNeeded) { - jpegImage.decodeTransform = transform; + // The SMask might have a alpha/luminosity value transfer function -- + // we will build a map of integer values in range 0..255 to be fast. + var transferObj = smask.get('TR'); + if (isPDFFunction(transferObj)) { + var transferFn = PDFFunction.parse(this.xref, transferObj); + var transferMap = new Uint8Array(256); + var tmp = new Float32Array(1); + for (var i = 0; i < 255; i++) { + tmp[0] = i / 255; + transferFn(tmp, 0, tmp, 0); + transferMap[i] = (tmp[0] * 255) | 0; } + smaskOptions.transferMap = transferMap; } - jpegImage.parse(this.bytes); - var data = jpegImage.getData(this.drawWidth, this.drawHeight, - this.forceRGB); - this.buffer = data; - this.bufferLength = data.length; - this.eof = true; - } catch (e) { - error('JPEG error: ' + e); - } - }; - - JpegStream.prototype.getBytes = function JpegStream_getBytes(length) { - this.ensureBuffer(); - return this.buffer; - }; - - JpegStream.prototype.getIR = function JpegStream_getIR() { - return PDFJS.createObjectURL(this.bytes, 'image/jpeg'); - }; - /** - * Checks if the image can be decoded and displayed by the browser without any - * further processing such as color space conversions. - */ - JpegStream.prototype.isNativelySupported = - function JpegStream_isNativelySupported(xref, res) { - var cs = ColorSpace.parse(this.dict.get('ColorSpace', 'CS'), xref, res); - return (cs.name === 'DeviceGray' || cs.name === 'DeviceRGB') && - cs.isDefaultDecode(this.dict.get('Decode', 'D')); - }; - /** - * Checks if the image can be decoded by the browser. - */ - JpegStream.prototype.isNativelyDecodable = - function JpegStream_isNativelyDecodable(xref, res) { - var cs = ColorSpace.parse(this.dict.get('ColorSpace', 'CS'), xref, res); - return (cs.numComps === 1 || cs.numComps === 3) && - cs.isDefaultDecode(this.dict.get('Decode', 'D')); - }; - - return JpegStream; -})(); - -/** - * For JPEG 2000's we use a library to decode these images and - * the stream behaves like all the other DecodeStreams. - */ -var JpxStream = (function JpxStreamClosure() { - function JpxStream(stream, maybeLength, dict) { - this.stream = stream; - this.maybeLength = maybeLength; - this.dict = dict; - - DecodeStream.call(this, maybeLength); - } - - JpxStream.prototype = Object.create(DecodeStream.prototype); - - Object.defineProperty(JpxStream.prototype, 'bytes', { - get: function JpxStream_bytes() { - // If this.maybeLength is null, we'll get the entire stream. - return shadow(this, 'bytes', this.stream.getBytes(this.maybeLength)); + return this.buildFormXObject(resources, smaskContent, smaskOptions, + operatorList, task, stateManager.state.clone()); }, - configurable: true - }); - JpxStream.prototype.ensureBuffer = function JpxStream_ensureBuffer(req) { - if (this.bufferLength) { - return; - } + handleTilingType: + function PartialEvaluator_handleTilingType(fn, args, resources, + pattern, patternDict, + operatorList, task) { + // Create an IR of the pattern code. + var tilingOpList = new OperatorList(); + // Merge the available resources, to prevent issues when the patternDict + // is missing some /Resources entries (fixes issue6541.pdf). + var resourcesArray = [patternDict.get('Resources'), resources]; + var patternResources = Dict.merge(this.xref, resourcesArray); - var jpxImage = new JpxImage(); - jpxImage.parse(this.bytes); - - var width = jpxImage.width; - var height = jpxImage.height; - var componentsCount = jpxImage.componentsCount; - var tileCount = jpxImage.tiles.length; - if (tileCount === 1) { - this.buffer = jpxImage.tiles[0].items; - } else { - var data = new Uint8Array(width * height * componentsCount); - - for (var k = 0; k < tileCount; k++) { - var tileComponents = jpxImage.tiles[k]; - var tileWidth = tileComponents.width; - var tileHeight = tileComponents.height; - var tileLeft = tileComponents.left; - var tileTop = tileComponents.top; - - var src = tileComponents.items; - var srcPosition = 0; - var dataPosition = (width * tileTop + tileLeft) * componentsCount; - var imgRowSize = width * componentsCount; - var tileRowSize = tileWidth * componentsCount; - - for (var j = 0; j < tileHeight; j++) { - var rowBytes = src.subarray(srcPosition, srcPosition + tileRowSize); - data.set(rowBytes, dataPosition); - srcPosition += tileRowSize; - dataPosition += imgRowSize; - } - } - this.buffer = data; - } - this.bufferLength = this.buffer.length; - this.eof = true; - }; - - return JpxStream; -})(); - -/** - * For JBIG2's we use a library to decode these images and - * the stream behaves like all the other DecodeStreams. - */ -var Jbig2Stream = (function Jbig2StreamClosure() { - function Jbig2Stream(stream, maybeLength, dict) { - this.stream = stream; - this.maybeLength = maybeLength; - this.dict = dict; - - DecodeStream.call(this, maybeLength); - } - - Jbig2Stream.prototype = Object.create(DecodeStream.prototype); - - Object.defineProperty(Jbig2Stream.prototype, 'bytes', { - get: function Jbig2Stream_bytes() { - // If this.maybeLength is null, we'll get the entire stream. - return shadow(this, 'bytes', this.stream.getBytes(this.maybeLength)); + return this.getOperatorList(pattern, task, patternResources, + tilingOpList).then(function () { + // Add the dependencies to the parent operator list so they are + // resolved before sub operator list is executed synchronously. + operatorList.addDependencies(tilingOpList.dependencies); + operatorList.addOp(fn, getTilingPatternIR({ + fnArray: tilingOpList.fnArray, + argsArray: tilingOpList.argsArray + }, patternDict, args)); + }); }, - configurable: true - }); - Jbig2Stream.prototype.ensureBuffer = function Jbig2Stream_ensureBuffer(req) { - if (this.bufferLength) { - return; - } - - var jbig2Image = new Jbig2Image(); - - var chunks = [], xref = this.dict.xref; - var decodeParams = xref.fetchIfRef(this.dict.get('DecodeParms')); - - // According to the PDF specification, DecodeParms can be either - // a dictionary, or an array whose elements are dictionaries. - if (isArray(decodeParams)) { - if (decodeParams.length > 1) { - warn('JBIG2 - \'DecodeParms\' array with multiple elements ' + - 'not supported.'); + handleSetFont: + function PartialEvaluator_handleSetFont(resources, fontArgs, fontRef, + operatorList, task, state) { + // TODO(mack): Not needed? + var fontName; + if (fontArgs) { + fontArgs = fontArgs.slice(); + fontName = fontArgs[0].name; } - decodeParams = xref.fetchIfRef(decodeParams[0]); - } - if (decodeParams && decodeParams.has('JBIG2Globals')) { - var globalsStream = decodeParams.get('JBIG2Globals'); - var globals = globalsStream.getBytes(); - chunks.push({data: globals, start: 0, end: globals.length}); - } - chunks.push({data: this.bytes, start: 0, end: this.bytes.length}); - var data = jbig2Image.parseChunks(chunks); - var dataLength = data.length; - // JBIG2 had black as 1 and white as 0, inverting the colors - for (var i = 0; i < dataLength; i++) { - data[i] ^= 0xFF; - } - - this.buffer = data; - this.bufferLength = dataLength; - this.eof = true; - }; - - return Jbig2Stream; -})(); - -var DecryptStream = (function DecryptStreamClosure() { - function DecryptStream(str, maybeLength, decrypt) { - this.str = str; - this.dict = str.dict; - this.decrypt = decrypt; - this.nextChunk = null; - this.initialized = false; - - DecodeStream.call(this, maybeLength); - } - - var chunkSize = 512; - - DecryptStream.prototype = Object.create(DecodeStream.prototype); - - DecryptStream.prototype.readBlock = function DecryptStream_readBlock() { - var chunk; - if (this.initialized) { - chunk = this.nextChunk; - } else { - chunk = this.str.getBytes(chunkSize); - this.initialized = true; - } - if (!chunk || chunk.length === 0) { - this.eof = true; - return; - } - this.nextChunk = this.str.getBytes(chunkSize); - var hasMoreData = this.nextChunk && this.nextChunk.length > 0; - - var decrypt = this.decrypt; - chunk = decrypt(chunk, !hasMoreData); - - var bufferLength = this.bufferLength; - var i, n = chunk.length; - var buffer = this.ensureBuffer(bufferLength + n); - for (i = 0; i < n; i++) { - buffer[bufferLength++] = chunk[i]; - } - this.bufferLength = bufferLength; - }; - - return DecryptStream; -})(); - -var Ascii85Stream = (function Ascii85StreamClosure() { - function Ascii85Stream(str, maybeLength) { - this.str = str; - this.dict = str.dict; - this.input = new Uint8Array(5); - - // Most streams increase in size when decoded, but Ascii85 streams - // typically shrink by ~20%. - if (maybeLength) { - maybeLength = 0.8 * maybeLength; - } - DecodeStream.call(this, maybeLength); - } - - Ascii85Stream.prototype = Object.create(DecodeStream.prototype); - - Ascii85Stream.prototype.readBlock = function Ascii85Stream_readBlock() { - var TILDA_CHAR = 0x7E; // '~' - var Z_LOWER_CHAR = 0x7A; // 'z' - var EOF = -1; - - var str = this.str; - - var c = str.getByte(); - while (Lexer.isSpace(c)) { - c = str.getByte(); - } - - if (c === EOF || c === TILDA_CHAR) { - this.eof = true; - return; - } - - var bufferLength = this.bufferLength, buffer; - var i; - - // special code for z - if (c === Z_LOWER_CHAR) { - buffer = this.ensureBuffer(bufferLength + 4); - for (i = 0; i < 4; ++i) { - buffer[bufferLength + i] = 0; - } - this.bufferLength += 4; - } else { - var input = this.input; - input[0] = c; - for (i = 1; i < 5; ++i) { - c = str.getByte(); - while (Lexer.isSpace(c)) { - c = str.getByte(); + var self = this; + return this.loadFont(fontName, fontRef, this.xref, resources).then( + function (translated) { + if (!translated.font.isType3Font) { + return translated; } + return translated.loadType3Data(self, resources, operatorList, task). + then(function () { + return translated; + }, function (reason) { + // Error in the font data -- sending unsupported feature notification. + self.handler.send('UnsupportedFeature', + {featureId: UNSUPPORTED_FEATURES.font}); + return new TranslatedFont('g_font_error', + new ErrorFont('Type3 font load error: ' + reason), translated.font); + }); + }).then(function (translated) { + state.font = translated.font; + translated.send(self.handler); + return translated.loadedName; + }); + }, - input[i] = c; + handleText: function PartialEvaluator_handleText(chars, state) { + var font = state.font; + var glyphs = font.charsToGlyphs(chars); + var isAddToPathSet = !!(state.textRenderingMode & + TextRenderingMode.ADD_TO_PATH_FLAG); + if (font.data && (isAddToPathSet || PDFJS.disableFontFace)) { + var buildPath = function (fontChar) { + if (!font.renderer.hasBuiltPath(fontChar)) { + var path = font.renderer.getPathJs(fontChar); + this.handler.send('commonobj', [ + font.loadedName + '_path_' + fontChar, + 'FontPath', + path + ]); + } + }.bind(this); - if (c === EOF || c === TILDA_CHAR) { - break; - } - } - buffer = this.ensureBuffer(bufferLength + i - 1); - this.bufferLength += i - 1; + for (var i = 0, ii = glyphs.length; i < ii; i++) { + var glyph = glyphs[i]; + buildPath(glyph.fontChar); - // partial ending; - if (i < 5) { - for (; i < 5; ++i) { - input[i] = 0x21 + 84; - } - this.eof = true; - } - var t = 0; - for (i = 0; i < 5; ++i) { - t = t * 85 + (input[i] - 0x21); - } - - for (i = 3; i >= 0; --i) { - buffer[bufferLength + i] = t & 0xFF; - t >>= 8; - } - } - }; - - return Ascii85Stream; -})(); - -var AsciiHexStream = (function AsciiHexStreamClosure() { - function AsciiHexStream(str, maybeLength) { - this.str = str; - this.dict = str.dict; - - this.firstDigit = -1; - - // Most streams increase in size when decoded, but AsciiHex streams shrink - // by 50%. - if (maybeLength) { - maybeLength = 0.5 * maybeLength; - } - DecodeStream.call(this, maybeLength); - } - - AsciiHexStream.prototype = Object.create(DecodeStream.prototype); - - AsciiHexStream.prototype.readBlock = function AsciiHexStream_readBlock() { - var UPSTREAM_BLOCK_SIZE = 8000; - var bytes = this.str.getBytes(UPSTREAM_BLOCK_SIZE); - if (!bytes.length) { - this.eof = true; - return; - } - - var maxDecodeLength = (bytes.length + 1) >> 1; - var buffer = this.ensureBuffer(this.bufferLength + maxDecodeLength); - var bufferLength = this.bufferLength; - - var firstDigit = this.firstDigit; - for (var i = 0, ii = bytes.length; i < ii; i++) { - var ch = bytes[i], digit; - if (ch >= 0x30 && ch <= 0x39) { // '0'-'9' - digit = ch & 0x0F; - } else if ((ch >= 0x41 && ch <= 0x46) || (ch >= 0x61 && ch <= 0x66)) { - // 'A'-'Z', 'a'-'z' - digit = (ch & 0x0F) + 9; - } else if (ch === 0x3E) { // '>' - this.eof = true; - break; - } else { // probably whitespace - continue; // ignoring - } - if (firstDigit < 0) { - firstDigit = digit; - } else { - buffer[bufferLength++] = (firstDigit << 4) | digit; - firstDigit = -1; - } - } - if (firstDigit >= 0 && this.eof) { - // incomplete byte - buffer[bufferLength++] = (firstDigit << 4); - firstDigit = -1; - } - this.firstDigit = firstDigit; - this.bufferLength = bufferLength; - }; - - return AsciiHexStream; -})(); - -var RunLengthStream = (function RunLengthStreamClosure() { - function RunLengthStream(str, maybeLength) { - this.str = str; - this.dict = str.dict; - - DecodeStream.call(this, maybeLength); - } - - RunLengthStream.prototype = Object.create(DecodeStream.prototype); - - RunLengthStream.prototype.readBlock = function RunLengthStream_readBlock() { - // The repeatHeader has following format. The first byte defines type of run - // and amount of bytes to repeat/copy: n = 0 through 127 - copy next n bytes - // (in addition to the second byte from the header), n = 129 through 255 - - // duplicate the second byte from the header (257 - n) times, n = 128 - end. - var repeatHeader = this.str.getBytes(2); - if (!repeatHeader || repeatHeader.length < 2 || repeatHeader[0] === 128) { - this.eof = true; - return; - } - - var buffer; - var bufferLength = this.bufferLength; - var n = repeatHeader[0]; - if (n < 128) { - // copy n bytes - buffer = this.ensureBuffer(bufferLength + n + 1); - buffer[bufferLength++] = repeatHeader[1]; - if (n > 0) { - var source = this.str.getBytes(n); - buffer.set(source, bufferLength); - bufferLength += n; - } - } else { - n = 257 - n; - var b = repeatHeader[1]; - buffer = this.ensureBuffer(bufferLength + n + 1); - for (var i = 0; i < n; i++) { - buffer[bufferLength++] = b; - } - } - this.bufferLength = bufferLength; - }; - - return RunLengthStream; -})(); - -var CCITTFaxStream = (function CCITTFaxStreamClosure() { - - var ccittEOL = -2; - var twoDimPass = 0; - var twoDimHoriz = 1; - var twoDimVert0 = 2; - var twoDimVertR1 = 3; - var twoDimVertL1 = 4; - var twoDimVertR2 = 5; - var twoDimVertL2 = 6; - var twoDimVertR3 = 7; - var twoDimVertL3 = 8; - - var twoDimTable = [ - [-1, -1], [-1, -1], // 000000x - [7, twoDimVertL3], // 0000010 - [7, twoDimVertR3], // 0000011 - [6, twoDimVertL2], [6, twoDimVertL2], // 000010x - [6, twoDimVertR2], [6, twoDimVertR2], // 000011x - [4, twoDimPass], [4, twoDimPass], // 0001xxx - [4, twoDimPass], [4, twoDimPass], - [4, twoDimPass], [4, twoDimPass], - [4, twoDimPass], [4, twoDimPass], - [3, twoDimHoriz], [3, twoDimHoriz], // 001xxxx - [3, twoDimHoriz], [3, twoDimHoriz], - [3, twoDimHoriz], [3, twoDimHoriz], - [3, twoDimHoriz], [3, twoDimHoriz], - [3, twoDimHoriz], [3, twoDimHoriz], - [3, twoDimHoriz], [3, twoDimHoriz], - [3, twoDimHoriz], [3, twoDimHoriz], - [3, twoDimHoriz], [3, twoDimHoriz], - [3, twoDimVertL1], [3, twoDimVertL1], // 010xxxx - [3, twoDimVertL1], [3, twoDimVertL1], - [3, twoDimVertL1], [3, twoDimVertL1], - [3, twoDimVertL1], [3, twoDimVertL1], - [3, twoDimVertL1], [3, twoDimVertL1], - [3, twoDimVertL1], [3, twoDimVertL1], - [3, twoDimVertL1], [3, twoDimVertL1], - [3, twoDimVertL1], [3, twoDimVertL1], - [3, twoDimVertR1], [3, twoDimVertR1], // 011xxxx - [3, twoDimVertR1], [3, twoDimVertR1], - [3, twoDimVertR1], [3, twoDimVertR1], - [3, twoDimVertR1], [3, twoDimVertR1], - [3, twoDimVertR1], [3, twoDimVertR1], - [3, twoDimVertR1], [3, twoDimVertR1], - [3, twoDimVertR1], [3, twoDimVertR1], - [3, twoDimVertR1], [3, twoDimVertR1], - [1, twoDimVert0], [1, twoDimVert0], // 1xxxxxx - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0], - [1, twoDimVert0], [1, twoDimVert0] - ]; - - var whiteTable1 = [ - [-1, -1], // 00000 - [12, ccittEOL], // 00001 - [-1, -1], [-1, -1], // 0001x - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 001xx - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 010xx - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 011xx - [11, 1792], [11, 1792], // 1000x - [12, 1984], // 10010 - [12, 2048], // 10011 - [12, 2112], // 10100 - [12, 2176], // 10101 - [12, 2240], // 10110 - [12, 2304], // 10111 - [11, 1856], [11, 1856], // 1100x - [11, 1920], [11, 1920], // 1101x - [12, 2368], // 11100 - [12, 2432], // 11101 - [12, 2496], // 11110 - [12, 2560] // 11111 - ]; - - var whiteTable2 = [ - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 0000000xx - [8, 29], [8, 29], // 00000010x - [8, 30], [8, 30], // 00000011x - [8, 45], [8, 45], // 00000100x - [8, 46], [8, 46], // 00000101x - [7, 22], [7, 22], [7, 22], [7, 22], // 0000011xx - [7, 23], [7, 23], [7, 23], [7, 23], // 0000100xx - [8, 47], [8, 47], // 00001010x - [8, 48], [8, 48], // 00001011x - [6, 13], [6, 13], [6, 13], [6, 13], // 000011xxx - [6, 13], [6, 13], [6, 13], [6, 13], - [7, 20], [7, 20], [7, 20], [7, 20], // 0001000xx - [8, 33], [8, 33], // 00010010x - [8, 34], [8, 34], // 00010011x - [8, 35], [8, 35], // 00010100x - [8, 36], [8, 36], // 00010101x - [8, 37], [8, 37], // 00010110x - [8, 38], [8, 38], // 00010111x - [7, 19], [7, 19], [7, 19], [7, 19], // 0001100xx - [8, 31], [8, 31], // 00011010x - [8, 32], [8, 32], // 00011011x - [6, 1], [6, 1], [6, 1], [6, 1], // 000111xxx - [6, 1], [6, 1], [6, 1], [6, 1], - [6, 12], [6, 12], [6, 12], [6, 12], // 001000xxx - [6, 12], [6, 12], [6, 12], [6, 12], - [8, 53], [8, 53], // 00100100x - [8, 54], [8, 54], // 00100101x - [7, 26], [7, 26], [7, 26], [7, 26], // 0010011xx - [8, 39], [8, 39], // 00101000x - [8, 40], [8, 40], // 00101001x - [8, 41], [8, 41], // 00101010x - [8, 42], [8, 42], // 00101011x - [8, 43], [8, 43], // 00101100x - [8, 44], [8, 44], // 00101101x - [7, 21], [7, 21], [7, 21], [7, 21], // 0010111xx - [7, 28], [7, 28], [7, 28], [7, 28], // 0011000xx - [8, 61], [8, 61], // 00110010x - [8, 62], [8, 62], // 00110011x - [8, 63], [8, 63], // 00110100x - [8, 0], [8, 0], // 00110101x - [8, 320], [8, 320], // 00110110x - [8, 384], [8, 384], // 00110111x - [5, 10], [5, 10], [5, 10], [5, 10], // 00111xxxx - [5, 10], [5, 10], [5, 10], [5, 10], - [5, 10], [5, 10], [5, 10], [5, 10], - [5, 10], [5, 10], [5, 10], [5, 10], - [5, 11], [5, 11], [5, 11], [5, 11], // 01000xxxx - [5, 11], [5, 11], [5, 11], [5, 11], - [5, 11], [5, 11], [5, 11], [5, 11], - [5, 11], [5, 11], [5, 11], [5, 11], - [7, 27], [7, 27], [7, 27], [7, 27], // 0100100xx - [8, 59], [8, 59], // 01001010x - [8, 60], [8, 60], // 01001011x - [9, 1472], // 010011000 - [9, 1536], // 010011001 - [9, 1600], // 010011010 - [9, 1728], // 010011011 - [7, 18], [7, 18], [7, 18], [7, 18], // 0100111xx - [7, 24], [7, 24], [7, 24], [7, 24], // 0101000xx - [8, 49], [8, 49], // 01010010x - [8, 50], [8, 50], // 01010011x - [8, 51], [8, 51], // 01010100x - [8, 52], [8, 52], // 01010101x - [7, 25], [7, 25], [7, 25], [7, 25], // 0101011xx - [8, 55], [8, 55], // 01011000x - [8, 56], [8, 56], // 01011001x - [8, 57], [8, 57], // 01011010x - [8, 58], [8, 58], // 01011011x - [6, 192], [6, 192], [6, 192], [6, 192], // 010111xxx - [6, 192], [6, 192], [6, 192], [6, 192], - [6, 1664], [6, 1664], [6, 1664], [6, 1664], // 011000xxx - [6, 1664], [6, 1664], [6, 1664], [6, 1664], - [8, 448], [8, 448], // 01100100x - [8, 512], [8, 512], // 01100101x - [9, 704], // 011001100 - [9, 768], // 011001101 - [8, 640], [8, 640], // 01100111x - [8, 576], [8, 576], // 01101000x - [9, 832], // 011010010 - [9, 896], // 011010011 - [9, 960], // 011010100 - [9, 1024], // 011010101 - [9, 1088], // 011010110 - [9, 1152], // 011010111 - [9, 1216], // 011011000 - [9, 1280], // 011011001 - [9, 1344], // 011011010 - [9, 1408], // 011011011 - [7, 256], [7, 256], [7, 256], [7, 256], // 0110111xx - [4, 2], [4, 2], [4, 2], [4, 2], // 0111xxxxx - [4, 2], [4, 2], [4, 2], [4, 2], - [4, 2], [4, 2], [4, 2], [4, 2], - [4, 2], [4, 2], [4, 2], [4, 2], - [4, 2], [4, 2], [4, 2], [4, 2], - [4, 2], [4, 2], [4, 2], [4, 2], - [4, 2], [4, 2], [4, 2], [4, 2], - [4, 2], [4, 2], [4, 2], [4, 2], - [4, 3], [4, 3], [4, 3], [4, 3], // 1000xxxxx - [4, 3], [4, 3], [4, 3], [4, 3], - [4, 3], [4, 3], [4, 3], [4, 3], - [4, 3], [4, 3], [4, 3], [4, 3], - [4, 3], [4, 3], [4, 3], [4, 3], - [4, 3], [4, 3], [4, 3], [4, 3], - [4, 3], [4, 3], [4, 3], [4, 3], - [4, 3], [4, 3], [4, 3], [4, 3], - [5, 128], [5, 128], [5, 128], [5, 128], // 10010xxxx - [5, 128], [5, 128], [5, 128], [5, 128], - [5, 128], [5, 128], [5, 128], [5, 128], - [5, 128], [5, 128], [5, 128], [5, 128], - [5, 8], [5, 8], [5, 8], [5, 8], // 10011xxxx - [5, 8], [5, 8], [5, 8], [5, 8], - [5, 8], [5, 8], [5, 8], [5, 8], - [5, 8], [5, 8], [5, 8], [5, 8], - [5, 9], [5, 9], [5, 9], [5, 9], // 10100xxxx - [5, 9], [5, 9], [5, 9], [5, 9], - [5, 9], [5, 9], [5, 9], [5, 9], - [5, 9], [5, 9], [5, 9], [5, 9], - [6, 16], [6, 16], [6, 16], [6, 16], // 101010xxx - [6, 16], [6, 16], [6, 16], [6, 16], - [6, 17], [6, 17], [6, 17], [6, 17], // 101011xxx - [6, 17], [6, 17], [6, 17], [6, 17], - [4, 4], [4, 4], [4, 4], [4, 4], // 1011xxxxx - [4, 4], [4, 4], [4, 4], [4, 4], - [4, 4], [4, 4], [4, 4], [4, 4], - [4, 4], [4, 4], [4, 4], [4, 4], - [4, 4], [4, 4], [4, 4], [4, 4], - [4, 4], [4, 4], [4, 4], [4, 4], - [4, 4], [4, 4], [4, 4], [4, 4], - [4, 4], [4, 4], [4, 4], [4, 4], - [4, 5], [4, 5], [4, 5], [4, 5], // 1100xxxxx - [4, 5], [4, 5], [4, 5], [4, 5], - [4, 5], [4, 5], [4, 5], [4, 5], - [4, 5], [4, 5], [4, 5], [4, 5], - [4, 5], [4, 5], [4, 5], [4, 5], - [4, 5], [4, 5], [4, 5], [4, 5], - [4, 5], [4, 5], [4, 5], [4, 5], - [4, 5], [4, 5], [4, 5], [4, 5], - [6, 14], [6, 14], [6, 14], [6, 14], // 110100xxx - [6, 14], [6, 14], [6, 14], [6, 14], - [6, 15], [6, 15], [6, 15], [6, 15], // 110101xxx - [6, 15], [6, 15], [6, 15], [6, 15], - [5, 64], [5, 64], [5, 64], [5, 64], // 11011xxxx - [5, 64], [5, 64], [5, 64], [5, 64], - [5, 64], [5, 64], [5, 64], [5, 64], - [5, 64], [5, 64], [5, 64], [5, 64], - [4, 6], [4, 6], [4, 6], [4, 6], // 1110xxxxx - [4, 6], [4, 6], [4, 6], [4, 6], - [4, 6], [4, 6], [4, 6], [4, 6], - [4, 6], [4, 6], [4, 6], [4, 6], - [4, 6], [4, 6], [4, 6], [4, 6], - [4, 6], [4, 6], [4, 6], [4, 6], - [4, 6], [4, 6], [4, 6], [4, 6], - [4, 6], [4, 6], [4, 6], [4, 6], - [4, 7], [4, 7], [4, 7], [4, 7], // 1111xxxxx - [4, 7], [4, 7], [4, 7], [4, 7], - [4, 7], [4, 7], [4, 7], [4, 7], - [4, 7], [4, 7], [4, 7], [4, 7], - [4, 7], [4, 7], [4, 7], [4, 7], - [4, 7], [4, 7], [4, 7], [4, 7], - [4, 7], [4, 7], [4, 7], [4, 7], - [4, 7], [4, 7], [4, 7], [4, 7] - ]; - - var blackTable1 = [ - [-1, -1], [-1, -1], // 000000000000x - [12, ccittEOL], [12, ccittEOL], // 000000000001x - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000001xx - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000010xx - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000011xx - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000100xx - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000101xx - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000110xx - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000111xx - [11, 1792], [11, 1792], [11, 1792], [11, 1792], // 00000001000xx - [12, 1984], [12, 1984], // 000000010010x - [12, 2048], [12, 2048], // 000000010011x - [12, 2112], [12, 2112], // 000000010100x - [12, 2176], [12, 2176], // 000000010101x - [12, 2240], [12, 2240], // 000000010110x - [12, 2304], [12, 2304], // 000000010111x - [11, 1856], [11, 1856], [11, 1856], [11, 1856], // 00000001100xx - [11, 1920], [11, 1920], [11, 1920], [11, 1920], // 00000001101xx - [12, 2368], [12, 2368], // 000000011100x - [12, 2432], [12, 2432], // 000000011101x - [12, 2496], [12, 2496], // 000000011110x - [12, 2560], [12, 2560], // 000000011111x - [10, 18], [10, 18], [10, 18], [10, 18], // 0000001000xxx - [10, 18], [10, 18], [10, 18], [10, 18], - [12, 52], [12, 52], // 000000100100x - [13, 640], // 0000001001010 - [13, 704], // 0000001001011 - [13, 768], // 0000001001100 - [13, 832], // 0000001001101 - [12, 55], [12, 55], // 000000100111x - [12, 56], [12, 56], // 000000101000x - [13, 1280], // 0000001010010 - [13, 1344], // 0000001010011 - [13, 1408], // 0000001010100 - [13, 1472], // 0000001010101 - [12, 59], [12, 59], // 000000101011x - [12, 60], [12, 60], // 000000101100x - [13, 1536], // 0000001011010 - [13, 1600], // 0000001011011 - [11, 24], [11, 24], [11, 24], [11, 24], // 00000010111xx - [11, 25], [11, 25], [11, 25], [11, 25], // 00000011000xx - [13, 1664], // 0000001100100 - [13, 1728], // 0000001100101 - [12, 320], [12, 320], // 000000110011x - [12, 384], [12, 384], // 000000110100x - [12, 448], [12, 448], // 000000110101x - [13, 512], // 0000001101100 - [13, 576], // 0000001101101 - [12, 53], [12, 53], // 000000110111x - [12, 54], [12, 54], // 000000111000x - [13, 896], // 0000001110010 - [13, 960], // 0000001110011 - [13, 1024], // 0000001110100 - [13, 1088], // 0000001110101 - [13, 1152], // 0000001110110 - [13, 1216], // 0000001110111 - [10, 64], [10, 64], [10, 64], [10, 64], // 0000001111xxx - [10, 64], [10, 64], [10, 64], [10, 64] - ]; - - var blackTable2 = [ - [8, 13], [8, 13], [8, 13], [8, 13], // 00000100xxxx - [8, 13], [8, 13], [8, 13], [8, 13], - [8, 13], [8, 13], [8, 13], [8, 13], - [8, 13], [8, 13], [8, 13], [8, 13], - [11, 23], [11, 23], // 00000101000x - [12, 50], // 000001010010 - [12, 51], // 000001010011 - [12, 44], // 000001010100 - [12, 45], // 000001010101 - [12, 46], // 000001010110 - [12, 47], // 000001010111 - [12, 57], // 000001011000 - [12, 58], // 000001011001 - [12, 61], // 000001011010 - [12, 256], // 000001011011 - [10, 16], [10, 16], [10, 16], [10, 16], // 0000010111xx - [10, 17], [10, 17], [10, 17], [10, 17], // 0000011000xx - [12, 48], // 000001100100 - [12, 49], // 000001100101 - [12, 62], // 000001100110 - [12, 63], // 000001100111 - [12, 30], // 000001101000 - [12, 31], // 000001101001 - [12, 32], // 000001101010 - [12, 33], // 000001101011 - [12, 40], // 000001101100 - [12, 41], // 000001101101 - [11, 22], [11, 22], // 00000110111x - [8, 14], [8, 14], [8, 14], [8, 14], // 00000111xxxx - [8, 14], [8, 14], [8, 14], [8, 14], - [8, 14], [8, 14], [8, 14], [8, 14], - [8, 14], [8, 14], [8, 14], [8, 14], - [7, 10], [7, 10], [7, 10], [7, 10], // 0000100xxxxx - [7, 10], [7, 10], [7, 10], [7, 10], - [7, 10], [7, 10], [7, 10], [7, 10], - [7, 10], [7, 10], [7, 10], [7, 10], - [7, 10], [7, 10], [7, 10], [7, 10], - [7, 10], [7, 10], [7, 10], [7, 10], - [7, 10], [7, 10], [7, 10], [7, 10], - [7, 10], [7, 10], [7, 10], [7, 10], - [7, 11], [7, 11], [7, 11], [7, 11], // 0000101xxxxx - [7, 11], [7, 11], [7, 11], [7, 11], - [7, 11], [7, 11], [7, 11], [7, 11], - [7, 11], [7, 11], [7, 11], [7, 11], - [7, 11], [7, 11], [7, 11], [7, 11], - [7, 11], [7, 11], [7, 11], [7, 11], - [7, 11], [7, 11], [7, 11], [7, 11], - [7, 11], [7, 11], [7, 11], [7, 11], - [9, 15], [9, 15], [9, 15], [9, 15], // 000011000xxx - [9, 15], [9, 15], [9, 15], [9, 15], - [12, 128], // 000011001000 - [12, 192], // 000011001001 - [12, 26], // 000011001010 - [12, 27], // 000011001011 - [12, 28], // 000011001100 - [12, 29], // 000011001101 - [11, 19], [11, 19], // 00001100111x - [11, 20], [11, 20], // 00001101000x - [12, 34], // 000011010010 - [12, 35], // 000011010011 - [12, 36], // 000011010100 - [12, 37], // 000011010101 - [12, 38], // 000011010110 - [12, 39], // 000011010111 - [11, 21], [11, 21], // 00001101100x - [12, 42], // 000011011010 - [12, 43], // 000011011011 - [10, 0], [10, 0], [10, 0], [10, 0], // 0000110111xx - [7, 12], [7, 12], [7, 12], [7, 12], // 0000111xxxxx - [7, 12], [7, 12], [7, 12], [7, 12], - [7, 12], [7, 12], [7, 12], [7, 12], - [7, 12], [7, 12], [7, 12], [7, 12], - [7, 12], [7, 12], [7, 12], [7, 12], - [7, 12], [7, 12], [7, 12], [7, 12], - [7, 12], [7, 12], [7, 12], [7, 12], - [7, 12], [7, 12], [7, 12], [7, 12] - ]; - - var blackTable3 = [ - [-1, -1], [-1, -1], [-1, -1], [-1, -1], // 0000xx - [6, 9], // 000100 - [6, 8], // 000101 - [5, 7], [5, 7], // 00011x - [4, 6], [4, 6], [4, 6], [4, 6], // 0010xx - [4, 5], [4, 5], [4, 5], [4, 5], // 0011xx - [3, 1], [3, 1], [3, 1], [3, 1], // 010xxx - [3, 1], [3, 1], [3, 1], [3, 1], - [3, 4], [3, 4], [3, 4], [3, 4], // 011xxx - [3, 4], [3, 4], [3, 4], [3, 4], - [2, 3], [2, 3], [2, 3], [2, 3], // 10xxxx - [2, 3], [2, 3], [2, 3], [2, 3], - [2, 3], [2, 3], [2, 3], [2, 3], - [2, 3], [2, 3], [2, 3], [2, 3], - [2, 2], [2, 2], [2, 2], [2, 2], // 11xxxx - [2, 2], [2, 2], [2, 2], [2, 2], - [2, 2], [2, 2], [2, 2], [2, 2], - [2, 2], [2, 2], [2, 2], [2, 2] - ]; - - function CCITTFaxStream(str, maybeLength, params) { - this.str = str; - this.dict = str.dict; - - params = params || Dict.empty; - - this.encoding = params.get('K') || 0; - this.eoline = params.get('EndOfLine') || false; - this.byteAlign = params.get('EncodedByteAlign') || false; - this.columns = params.get('Columns') || 1728; - this.rows = params.get('Rows') || 0; - var eoblock = params.get('EndOfBlock'); - if (eoblock === null || eoblock === undefined) { - eoblock = true; - } - this.eoblock = eoblock; - this.black = params.get('BlackIs1') || false; - - this.codingLine = new Uint32Array(this.columns + 1); - this.refLine = new Uint32Array(this.columns + 2); - - this.codingLine[0] = this.columns; - this.codingPos = 0; - - this.row = 0; - this.nextLine2D = this.encoding < 0; - this.inputBits = 0; - this.inputBuf = 0; - this.outputBits = 0; - - var code1; - while ((code1 = this.lookBits(12)) === 0) { - this.eatBits(1); - } - if (code1 === 1) { - this.eatBits(12); - } - if (this.encoding > 0) { - this.nextLine2D = !this.lookBits(1); - this.eatBits(1); - } - - DecodeStream.call(this, maybeLength); - } - - CCITTFaxStream.prototype = Object.create(DecodeStream.prototype); - - CCITTFaxStream.prototype.readBlock = function CCITTFaxStream_readBlock() { - while (!this.eof) { - var c = this.lookChar(); - this.ensureBuffer(this.bufferLength + 1); - this.buffer[this.bufferLength++] = c; - } - }; - - CCITTFaxStream.prototype.addPixels = - function ccittFaxStreamAddPixels(a1, blackPixels) { - var codingLine = this.codingLine; - var codingPos = this.codingPos; - - if (a1 > codingLine[codingPos]) { - if (a1 > this.columns) { - info('row is wrong length'); - this.err = true; - a1 = this.columns; - } - if ((codingPos & 1) ^ blackPixels) { - ++codingPos; - } - - codingLine[codingPos] = a1; - } - this.codingPos = codingPos; - }; - - CCITTFaxStream.prototype.addPixelsNeg = - function ccittFaxStreamAddPixelsNeg(a1, blackPixels) { - var codingLine = this.codingLine; - var codingPos = this.codingPos; - - if (a1 > codingLine[codingPos]) { - if (a1 > this.columns) { - info('row is wrong length'); - this.err = true; - a1 = this.columns; - } - if ((codingPos & 1) ^ blackPixels) { - ++codingPos; - } - - codingLine[codingPos] = a1; - } else if (a1 < codingLine[codingPos]) { - if (a1 < 0) { - info('invalid code'); - this.err = true; - a1 = 0; - } - while (codingPos > 0 && a1 < codingLine[codingPos - 1]) { - --codingPos; - } - codingLine[codingPos] = a1; - } - - this.codingPos = codingPos; - }; - - CCITTFaxStream.prototype.lookChar = function CCITTFaxStream_lookChar() { - var refLine = this.refLine; - var codingLine = this.codingLine; - var columns = this.columns; - - var refPos, blackPixels, bits, i; - - if (this.outputBits === 0) { - if (this.eof) { - return null; - } - this.err = false; - - var code1, code2, code3; - if (this.nextLine2D) { - for (i = 0; codingLine[i] < columns; ++i) { - refLine[i] = codingLine[i]; - } - refLine[i++] = columns; - refLine[i] = columns; - codingLine[0] = 0; - this.codingPos = 0; - refPos = 0; - blackPixels = 0; - - while (codingLine[this.codingPos] < columns) { - code1 = this.getTwoDimCode(); - switch (code1) { - case twoDimPass: - this.addPixels(refLine[refPos + 1], blackPixels); - if (refLine[refPos + 1] < columns) { - refPos += 2; - } - break; - case twoDimHoriz: - code1 = code2 = 0; - if (blackPixels) { - do { - code1 += (code3 = this.getBlackCode()); - } while (code3 >= 64); - do { - code2 += (code3 = this.getWhiteCode()); - } while (code3 >= 64); - } else { - do { - code1 += (code3 = this.getWhiteCode()); - } while (code3 >= 64); - do { - code2 += (code3 = this.getBlackCode()); - } while (code3 >= 64); - } - this.addPixels(codingLine[this.codingPos] + - code1, blackPixels); - if (codingLine[this.codingPos] < columns) { - this.addPixels(codingLine[this.codingPos] + code2, - blackPixels ^ 1); - } - while (refLine[refPos] <= codingLine[this.codingPos] && - refLine[refPos] < columns) { - refPos += 2; - } - break; - case twoDimVertR3: - this.addPixels(refLine[refPos] + 3, blackPixels); - blackPixels ^= 1; - if (codingLine[this.codingPos] < columns) { - ++refPos; - while (refLine[refPos] <= codingLine[this.codingPos] && - refLine[refPos] < columns) { - refPos += 2; - } - } - break; - case twoDimVertR2: - this.addPixels(refLine[refPos] + 2, blackPixels); - blackPixels ^= 1; - if (codingLine[this.codingPos] < columns) { - ++refPos; - while (refLine[refPos] <= codingLine[this.codingPos] && - refLine[refPos] < columns) { - refPos += 2; - } - } - break; - case twoDimVertR1: - this.addPixels(refLine[refPos] + 1, blackPixels); - blackPixels ^= 1; - if (codingLine[this.codingPos] < columns) { - ++refPos; - while (refLine[refPos] <= codingLine[this.codingPos] && - refLine[refPos] < columns) { - refPos += 2; - } - } - break; - case twoDimVert0: - this.addPixels(refLine[refPos], blackPixels); - blackPixels ^= 1; - if (codingLine[this.codingPos] < columns) { - ++refPos; - while (refLine[refPos] <= codingLine[this.codingPos] && - refLine[refPos] < columns) { - refPos += 2; - } - } - break; - case twoDimVertL3: - this.addPixelsNeg(refLine[refPos] - 3, blackPixels); - blackPixels ^= 1; - if (codingLine[this.codingPos] < columns) { - if (refPos > 0) { - --refPos; - } else { - ++refPos; - } - while (refLine[refPos] <= codingLine[this.codingPos] && - refLine[refPos] < columns) { - refPos += 2; - } - } - break; - case twoDimVertL2: - this.addPixelsNeg(refLine[refPos] - 2, blackPixels); - blackPixels ^= 1; - if (codingLine[this.codingPos] < columns) { - if (refPos > 0) { - --refPos; - } else { - ++refPos; - } - while (refLine[refPos] <= codingLine[this.codingPos] && - refLine[refPos] < columns) { - refPos += 2; - } - } - break; - case twoDimVertL1: - this.addPixelsNeg(refLine[refPos] - 1, blackPixels); - blackPixels ^= 1; - if (codingLine[this.codingPos] < columns) { - if (refPos > 0) { - --refPos; - } else { - ++refPos; - } - while (refLine[refPos] <= codingLine[this.codingPos] && - refLine[refPos] < columns) { - refPos += 2; - } - } - break; - case EOF: - this.addPixels(columns, 0); - this.eof = true; - break; - default: - info('bad 2d code'); - this.addPixels(columns, 0); - this.err = true; + // If the glyph has an accent we need to build a path for its + // fontChar too, otherwise CanvasGraphics_paintChar will fail. + var accent = glyph.accent; + if (accent && accent.fontChar) { + buildPath(accent.fontChar); } } - } else { - codingLine[0] = 0; - this.codingPos = 0; - blackPixels = 0; - while (codingLine[this.codingPos] < columns) { - code1 = 0; - if (blackPixels) { - do { - code1 += (code3 = this.getBlackCode()); - } while (code3 >= 64); - } else { - do { - code1 += (code3 = this.getWhiteCode()); - } while (code3 >= 64); - } - this.addPixels(codingLine[this.codingPos] + code1, blackPixels); - blackPixels ^= 1; + } + + return glyphs; + }, + + setGState: function PartialEvaluator_setGState(resources, gState, + operatorList, task, + xref, stateManager) { + // This array holds the converted/processed state data. + var gStateObj = []; + var gStateMap = gState.map; + var self = this; + var promise = Promise.resolve(); + for (var key in gStateMap) { + var value = gStateMap[key]; + switch (key) { + case 'Type': + break; + case 'LW': + case 'LC': + case 'LJ': + case 'ML': + case 'D': + case 'RI': + case 'FL': + case 'CA': + case 'ca': + gStateObj.push([key, value]); + break; + case 'Font': + promise = promise.then(function () { + return self.handleSetFont(resources, null, value[0], operatorList, + task, stateManager.state). + then(function (loadedName) { + operatorList.addDependency(loadedName); + gStateObj.push([key, [loadedName, value[1]]]); + }); + }); + break; + case 'BM': + gStateObj.push([key, value]); + break; + case 'SMask': + if (isName(value) && value.name === 'None') { + gStateObj.push([key, false]); + break; + } + var dict = xref.fetchIfRef(value); + if (isDict(dict)) { + promise = promise.then(function () { + return self.handleSMask(dict, resources, operatorList, + task, stateManager); + }); + gStateObj.push([key, true]); + } else { + warn('Unsupported SMask type'); + } + + break; + // Only generate info log messages for the following since + // they are unlikely to have a big impact on the rendering. + case 'OP': + case 'op': + case 'OPM': + case 'BG': + case 'BG2': + case 'UCR': + case 'UCR2': + case 'TR': + case 'TR2': + case 'HT': + case 'SM': + case 'SA': + case 'AIS': + case 'TK': + // TODO implement these operators. + info('graphic state operator ' + key); + break; + default: + info('Unknown graphic state operator ' + key); + break; } } + return promise.then(function () { + if (gStateObj.length >= 0) { + operatorList.addOp(OPS.setGState, [gStateObj]); + } + }); + }, - var gotEOL = false; + loadFont: function PartialEvaluator_loadFont(fontName, font, xref, + resources) { - if (this.byteAlign) { - this.inputBits &= ~7; + function errorFont() { + return Promise.resolve(new TranslatedFont('g_font_error', + new ErrorFont('Font ' + fontName + ' is not available'), font)); } - - if (!this.eoblock && this.row === this.rows - 1) { - this.eof = true; - } else { - code1 = this.lookBits(12); - if (this.eoline) { - while (code1 !== EOF && code1 !== 1) { - this.eatBits(1); - code1 = this.lookBits(12); - } + var fontRef; + if (font) { // Loading by ref. + assert(isRef(font)); + fontRef = font; + } else { // Loading by name. + var fontRes = resources.get('Font'); + if (fontRes) { + fontRef = fontRes.getRaw(fontName); } else { - while (code1 === 0) { - this.eatBits(1); - code1 = this.lookBits(12); - } - } - if (code1 === 1) { - this.eatBits(12); - gotEOL = true; - } else if (code1 === EOF) { - this.eof = true; + warn('fontRes not available'); + return errorFont(); } } - - if (!this.eof && this.encoding > 0) { - this.nextLine2D = !this.lookBits(1); - this.eatBits(1); + if (!fontRef) { + warn('fontRef not available'); + return errorFont(); } - if (this.eoblock && gotEOL && this.byteAlign) { - code1 = this.lookBits(12); - if (code1 === 1) { - this.eatBits(12); - if (this.encoding > 0) { - this.lookBits(1); - this.eatBits(1); + if (this.fontCache.has(fontRef)) { + return this.fontCache.get(fontRef); + } + + font = xref.fetchIfRef(fontRef); + if (!isDict(font)) { + return errorFont(); + } + + // We are holding font.translated references just for fontRef that are not + // dictionaries (Dict). See explanation below. + if (font.translated) { + return font.translated; + } + + var fontCapability = createPromiseCapability(); + + var preEvaluatedFont = this.preEvaluateFont(font, xref); + var descriptor = preEvaluatedFont.descriptor; + var fontID = fontRef.num + '_' + fontRef.gen; + if (isDict(descriptor)) { + if (!descriptor.fontAliases) { + descriptor.fontAliases = Object.create(null); + } + + var fontAliases = descriptor.fontAliases; + var hash = preEvaluatedFont.hash; + if (fontAliases[hash]) { + var aliasFontRef = fontAliases[hash].aliasRef; + if (aliasFontRef && this.fontCache.has(aliasFontRef)) { + this.fontCache.putAlias(fontRef, aliasFontRef); + return this.fontCache.get(fontRef); } - if (this.encoding >= 0) { - for (i = 0; i < 4; ++i) { - code1 = this.lookBits(12); - if (code1 !== 1) { - info('bad rtc code: ' + code1); + } + + if (!fontAliases[hash]) { + fontAliases[hash] = { + fontID: Font.getFontID() + }; + } + + fontAliases[hash].aliasRef = fontRef; + fontID = fontAliases[hash].fontID; + } + + // Workaround for bad PDF generators that don't reference fonts + // properly, i.e. by not using an object identifier. + // Check if the fontRef is a Dict (as opposed to a standard object), + // in which case we don't cache the font and instead reference it by + // fontName in font.loadedName below. + var fontRefIsDict = isDict(fontRef); + if (!fontRefIsDict) { + this.fontCache.put(fontRef, fontCapability.promise); + } + + // Keep track of each font we translated so the caller can + // load them asynchronously before calling display on a page. + font.loadedName = 'g_' + this.pdfManager.docId + '_f' + (fontRefIsDict ? + fontName.replace(/\W/g, '') : fontID); + + font.translated = fontCapability.promise; + + // TODO move promises into translate font + var translatedPromise; + try { + translatedPromise = Promise.resolve( + this.translateFont(preEvaluatedFont, xref)); + } catch (e) { + translatedPromise = Promise.reject(e); + } + + var self = this; + translatedPromise.then(function (translatedFont) { + if (translatedFont.fontType !== undefined) { + var xrefFontStats = xref.stats.fontTypes; + xrefFontStats[translatedFont.fontType] = true; + } + + fontCapability.resolve(new TranslatedFont(font.loadedName, + translatedFont, font)); + }, function (reason) { + // TODO fontCapability.reject? + // Error in the font data -- sending unsupported feature notification. + self.handler.send('UnsupportedFeature', + {featureId: UNSUPPORTED_FEATURES.font}); + + try { + // error, but it's still nice to have font type reported + var descriptor = preEvaluatedFont.descriptor; + var fontFile3 = descriptor && descriptor.get('FontFile3'); + var subtype = fontFile3 && fontFile3.get('Subtype'); + var fontType = getFontType(preEvaluatedFont.type, + subtype && subtype.name); + var xrefFontStats = xref.stats.fontTypes; + xrefFontStats[fontType] = true; + } catch (ex) { } + + fontCapability.resolve(new TranslatedFont(font.loadedName, + new ErrorFont(reason instanceof Error ? reason.message : reason), + font)); + }); + return fontCapability.promise; + }, + + buildPath: function PartialEvaluator_buildPath(operatorList, fn, args) { + var lastIndex = operatorList.length - 1; + if (!args) { + args = []; + } + if (lastIndex < 0 || + operatorList.fnArray[lastIndex] !== OPS.constructPath) { + operatorList.addOp(OPS.constructPath, [[fn], args]); + } else { + var opArgs = operatorList.argsArray[lastIndex]; + opArgs[0].push(fn); + Array.prototype.push.apply(opArgs[1], args); + } + }, + + handleColorN: function PartialEvaluator_handleColorN(operatorList, fn, args, + cs, patterns, resources, task, xref) { + // compile tiling patterns + var patternName = args[args.length - 1]; + // SCN/scn applies patterns along with normal colors + var pattern; + if (isName(patternName) && + (pattern = patterns.get(patternName.name))) { + var dict = (isStream(pattern) ? pattern.dict : pattern); + var typeNum = dict.get('PatternType'); + + if (typeNum === TILING_PATTERN) { + var color = cs.base ? cs.base.getRgb(args, 0) : null; + return this.handleTilingType(fn, color, resources, pattern, + dict, operatorList, task); + } else if (typeNum === SHADING_PATTERN) { + var shading = dict.get('Shading'); + var matrix = dict.get('Matrix'); + pattern = Pattern.parseShading(shading, matrix, xref, resources, + this.handler); + operatorList.addOp(fn, pattern.getIR()); + return Promise.resolve(); + } else { + return Promise.reject('Unknown PatternType: ' + typeNum); + } + } + // TODO shall we fail here? + operatorList.addOp(fn, args); + return Promise.resolve(); + }, + + getOperatorList: function PartialEvaluator_getOperatorList(stream, + task, + resources, + operatorList, + initialState) { + + var self = this; + var xref = this.xref; + var imageCache = {}; + + assert(operatorList); + + resources = (resources || Dict.empty); + var xobjs = (resources.get('XObject') || Dict.empty); + var patterns = (resources.get('Pattern') || Dict.empty); + var stateManager = new StateManager(initialState || new EvalState()); + var preprocessor = new EvaluatorPreprocessor(stream, xref, stateManager); + var timeSlotManager = new TimeSlotManager(); + + return new Promise(function next(resolve, reject) { + task.ensureNotTerminated(); + timeSlotManager.reset(); + var stop, operation = {}, i, ii, cs; + while (!(stop = timeSlotManager.check())) { + // The arguments parsed by read() are used beyond this loop, so we + // cannot reuse the same array on each iteration. Therefore we pass + // in |null| as the initial value (see the comment on + // EvaluatorPreprocessor_read() for why). + operation.args = null; + if (!(preprocessor.read(operation))) { + break; + } + var args = operation.args; + var fn = operation.fn; + + switch (fn | 0) { + case OPS.paintXObject: + if (args[0].code) { + break; } - this.eatBits(12); - if (this.encoding > 0) { - this.lookBits(1); - this.eatBits(1); + // eagerly compile XForm objects + var name = args[0].name; + if (!name) { + warn('XObject must be referred to by name.'); + continue; + } + if (imageCache[name] !== undefined) { + operatorList.addOp(imageCache[name].fn, imageCache[name].args); + args = null; + continue; + } + + var xobj = xobjs.get(name); + if (xobj) { + assert(isStream(xobj), 'XObject should be a stream'); + + var type = xobj.dict.get('Subtype'); + assert(isName(type), + 'XObject should have a Name subtype'); + + if (type.name === 'Form') { + stateManager.save(); + return self.buildFormXObject(resources, xobj, null, + operatorList, task, + stateManager.state.clone()). + then(function () { + stateManager.restore(); + next(resolve, reject); + }, reject); + } else if (type.name === 'Image') { + self.buildPaintImageXObject(resources, xobj, false, + operatorList, name, imageCache); + args = null; + continue; + } else if (type.name === 'PS') { + // PostScript XObjects are unused when viewing documents. + // See section 4.7.1 of Adobe's PDF reference. + info('Ignored XObject subtype PS'); + continue; + } else { + error('Unhandled XObject subtype ' + type.name); + } + } + break; + case OPS.setFont: + var fontSize = args[1]; + // eagerly collect all fonts + return self.handleSetFont(resources, args, null, operatorList, + task, stateManager.state). + then(function (loadedName) { + operatorList.addDependency(loadedName); + operatorList.addOp(OPS.setFont, [loadedName, fontSize]); + next(resolve, reject); + }, reject); + case OPS.endInlineImage: + var cacheKey = args[0].cacheKey; + if (cacheKey) { + var cacheEntry = imageCache[cacheKey]; + if (cacheEntry !== undefined) { + operatorList.addOp(cacheEntry.fn, cacheEntry.args); + args = null; + continue; + } + } + self.buildPaintImageXObject(resources, args[0], true, + operatorList, cacheKey, imageCache); + args = null; + continue; + case OPS.showText: + args[0] = self.handleText(args[0], stateManager.state); + break; + case OPS.showSpacedText: + var arr = args[0]; + var combinedGlyphs = []; + var arrLength = arr.length; + var state = stateManager.state; + for (i = 0; i < arrLength; ++i) { + var arrItem = arr[i]; + if (isString(arrItem)) { + Array.prototype.push.apply(combinedGlyphs, + self.handleText(arrItem, state)); + } else if (isNum(arrItem)) { + combinedGlyphs.push(arrItem); + } + } + args[0] = combinedGlyphs; + fn = OPS.showText; + break; + case OPS.nextLineShowText: + operatorList.addOp(OPS.nextLine); + args[0] = self.handleText(args[0], stateManager.state); + fn = OPS.showText; + break; + case OPS.nextLineSetSpacingShowText: + operatorList.addOp(OPS.nextLine); + operatorList.addOp(OPS.setWordSpacing, [args.shift()]); + operatorList.addOp(OPS.setCharSpacing, [args.shift()]); + args[0] = self.handleText(args[0], stateManager.state); + fn = OPS.showText; + break; + case OPS.setTextRenderingMode: + stateManager.state.textRenderingMode = args[0]; + break; + + case OPS.setFillColorSpace: + stateManager.state.fillColorSpace = + ColorSpace.parse(args[0], xref, resources); + continue; + case OPS.setStrokeColorSpace: + stateManager.state.strokeColorSpace = + ColorSpace.parse(args[0], xref, resources); + continue; + case OPS.setFillColor: + cs = stateManager.state.fillColorSpace; + args = cs.getRgb(args, 0); + fn = OPS.setFillRGBColor; + break; + case OPS.setStrokeColor: + cs = stateManager.state.strokeColorSpace; + args = cs.getRgb(args, 0); + fn = OPS.setStrokeRGBColor; + break; + case OPS.setFillGray: + stateManager.state.fillColorSpace = ColorSpace.singletons.gray; + args = ColorSpace.singletons.gray.getRgb(args, 0); + fn = OPS.setFillRGBColor; + break; + case OPS.setStrokeGray: + stateManager.state.strokeColorSpace = ColorSpace.singletons.gray; + args = ColorSpace.singletons.gray.getRgb(args, 0); + fn = OPS.setStrokeRGBColor; + break; + case OPS.setFillCMYKColor: + stateManager.state.fillColorSpace = ColorSpace.singletons.cmyk; + args = ColorSpace.singletons.cmyk.getRgb(args, 0); + fn = OPS.setFillRGBColor; + break; + case OPS.setStrokeCMYKColor: + stateManager.state.strokeColorSpace = ColorSpace.singletons.cmyk; + args = ColorSpace.singletons.cmyk.getRgb(args, 0); + fn = OPS.setStrokeRGBColor; + break; + case OPS.setFillRGBColor: + stateManager.state.fillColorSpace = ColorSpace.singletons.rgb; + args = ColorSpace.singletons.rgb.getRgb(args, 0); + break; + case OPS.setStrokeRGBColor: + stateManager.state.strokeColorSpace = ColorSpace.singletons.rgb; + args = ColorSpace.singletons.rgb.getRgb(args, 0); + break; + case OPS.setFillColorN: + cs = stateManager.state.fillColorSpace; + if (cs.name === 'Pattern') { + return self.handleColorN(operatorList, OPS.setFillColorN, + args, cs, patterns, resources, task, xref).then(function() { + next(resolve, reject); + }, reject); + } + args = cs.getRgb(args, 0); + fn = OPS.setFillRGBColor; + break; + case OPS.setStrokeColorN: + cs = stateManager.state.strokeColorSpace; + if (cs.name === 'Pattern') { + return self.handleColorN(operatorList, OPS.setStrokeColorN, + args, cs, patterns, resources, task, xref).then(function() { + next(resolve, reject); + }, reject); + } + args = cs.getRgb(args, 0); + fn = OPS.setStrokeRGBColor; + break; + + case OPS.shadingFill: + var shadingRes = resources.get('Shading'); + if (!shadingRes) { + error('No shading resource found'); + } + + var shading = shadingRes.get(args[0].name); + if (!shading) { + error('No shading object found'); + } + + var shadingFill = Pattern.parseShading(shading, null, xref, + resources, self.handler); + var patternIR = shadingFill.getIR(); + args = [patternIR]; + fn = OPS.shadingFill; + break; + case OPS.setGState: + var dictName = args[0]; + var extGState = resources.get('ExtGState'); + + if (!isDict(extGState) || !extGState.has(dictName.name)) { + break; + } + + var gState = extGState.get(dictName.name); + return self.setGState(resources, gState, operatorList, task, + xref, stateManager).then(function() { + next(resolve, reject); + }, reject); + case OPS.moveTo: + case OPS.lineTo: + case OPS.curveTo: + case OPS.curveTo2: + case OPS.curveTo3: + case OPS.closePath: + self.buildPath(operatorList, fn, args); + continue; + case OPS.rectangle: + self.buildPath(operatorList, fn, args); + continue; + case OPS.markPoint: + case OPS.markPointProps: + case OPS.beginMarkedContent: + case OPS.beginMarkedContentProps: + case OPS.endMarkedContent: + case OPS.beginCompat: + case OPS.endCompat: + // Ignore operators where the corresponding handlers are known to + // be no-op in CanvasGraphics (display/canvas.js). This prevents + // serialization errors and is also a bit more efficient. + // We could also try to serialize all objects in a general way, + // e.g. as done in https://github.com/mozilla/pdf.js/pull/6266, + // but doing so is meaningless without knowing the semantics. + continue; + default: + // Note: Let's hope that the ignored operator does not have any + // non-serializable arguments, otherwise postMessage will throw + // "An object could not be cloned.". + } + operatorList.addOp(fn, args); + } + if (stop) { + deferred.then(function () { + next(resolve, reject); + }, reject); + return; + } + // Some PDFs don't close all restores inside object/form. + // Closing those for them. + for (i = 0, ii = preprocessor.savedStatesDepth; i < ii; i++) { + operatorList.addOp(OPS.restore, []); + } + resolve(); + }); + }, + + getTextContent: + function PartialEvaluator_getTextContent(stream, task, resources, + stateManager, + normalizeWhitespace) { + + stateManager = (stateManager || new StateManager(new TextState())); + + var WhitespaceRegexp = /\s/g; + + var textContent = { + items: [], + styles: Object.create(null) + }; + var textContentItem = { + initialized: false, + str: [], + width: 0, + height: 0, + vertical: false, + lastAdvanceWidth: 0, + lastAdvanceHeight: 0, + textAdvanceScale: 0, + spaceWidth: 0, + fakeSpaceMin: Infinity, + fakeMultiSpaceMin: Infinity, + fakeMultiSpaceMax: -0, + textRunBreakAllowed: false, + transform: null, + fontName: null + }; + var SPACE_FACTOR = 0.3; + var MULTI_SPACE_FACTOR = 1.5; + var MULTI_SPACE_FACTOR_MAX = 4; + + var self = this; + var xref = this.xref; + + resources = (xref.fetchIfRef(resources) || Dict.empty); + + // The xobj is parsed iff it's needed, e.g. if there is a `DO` cmd. + var xobjs = null; + var xobjsCache = {}; + + var preprocessor = new EvaluatorPreprocessor(stream, xref, stateManager); + + var textState; + + function ensureTextContentItem() { + if (textContentItem.initialized) { + return textContentItem; + } + var font = textState.font; + if (!(font.loadedName in textContent.styles)) { + textContent.styles[font.loadedName] = { + fontFamily: font.fallbackName, + ascent: font.ascent, + descent: font.descent, + vertical: font.vertical + }; + } + textContentItem.fontName = font.loadedName; + + // 9.4.4 Text Space Details + var tsm = [textState.fontSize * textState.textHScale, 0, + 0, textState.fontSize, + 0, textState.textRise]; + + if (font.isType3Font && + textState.fontMatrix !== FONT_IDENTITY_MATRIX && + textState.fontSize === 1) { + var glyphHeight = font.bbox[3] - font.bbox[1]; + if (glyphHeight > 0) { + glyphHeight = glyphHeight * textState.fontMatrix[3]; + tsm[3] *= glyphHeight; + } + } + + var trm = Util.transform(textState.ctm, + Util.transform(textState.textMatrix, tsm)); + textContentItem.transform = trm; + if (!font.vertical) { + textContentItem.width = 0; + textContentItem.height = Math.sqrt(trm[2] * trm[2] + trm[3] * trm[3]); + textContentItem.vertical = false; + } else { + textContentItem.width = Math.sqrt(trm[0] * trm[0] + trm[1] * trm[1]); + textContentItem.height = 0; + textContentItem.vertical = true; + } + + var a = textState.textLineMatrix[0]; + var b = textState.textLineMatrix[1]; + var scaleLineX = Math.sqrt(a * a + b * b); + a = textState.ctm[0]; + b = textState.ctm[1]; + var scaleCtmX = Math.sqrt(a * a + b * b); + textContentItem.textAdvanceScale = scaleCtmX * scaleLineX; + textContentItem.lastAdvanceWidth = 0; + textContentItem.lastAdvanceHeight = 0; + + var spaceWidth = font.spaceWidth / 1000 * textState.fontSize; + if (spaceWidth) { + textContentItem.spaceWidth = spaceWidth; + textContentItem.fakeSpaceMin = spaceWidth * SPACE_FACTOR; + textContentItem.fakeMultiSpaceMin = spaceWidth * MULTI_SPACE_FACTOR; + textContentItem.fakeMultiSpaceMax = + spaceWidth * MULTI_SPACE_FACTOR_MAX; + // It's okay for monospace fonts to fake as much space as needed. + textContentItem.textRunBreakAllowed = !font.isMonospace; + } else { + textContentItem.spaceWidth = 0; + textContentItem.fakeSpaceMin = Infinity; + textContentItem.fakeMultiSpaceMin = Infinity; + textContentItem.fakeMultiSpaceMax = 0; + textContentItem.textRunBreakAllowed = false; + } + + + textContentItem.initialized = true; + return textContentItem; + } + + function replaceWhitespace(str) { + // Replaces all whitespaces with standard spaces (0x20), to avoid + // alignment issues between the textLayer and the canvas if the text + // contains e.g. tabs (fixes issue6612.pdf). + var i = 0, ii = str.length, code; + while (i < ii && (code = str.charCodeAt(i)) >= 0x20 && code <= 0x7F) { + i++; + } + return (i < ii ? str.replace(WhitespaceRegexp, ' ') : str); + } + + function runBidiTransform(textChunk) { + var str = textChunk.str.join(''); + var bidiResult = PDFJS.bidi(str, -1, textChunk.vertical); + return { + str: (normalizeWhitespace ? replaceWhitespace(bidiResult.str) : + bidiResult.str), + dir: bidiResult.dir, + width: textChunk.width, + height: textChunk.height, + transform: textChunk.transform, + fontName: textChunk.fontName + }; + } + + function handleSetFont(fontName, fontRef) { + return self.loadFont(fontName, fontRef, xref, resources). + then(function (translated) { + textState.font = translated.font; + textState.fontMatrix = translated.font.fontMatrix || + FONT_IDENTITY_MATRIX; + }); + } + + function buildTextContentItem(chars) { + var font = textState.font; + var textChunk = ensureTextContentItem(); + var width = 0; + var height = 0; + var glyphs = font.charsToGlyphs(chars); + var defaultVMetrics = font.defaultVMetrics; + for (var i = 0; i < glyphs.length; i++) { + var glyph = glyphs[i]; + var vMetricX = null; + var vMetricY = null; + var glyphWidth = null; + if (font.vertical) { + if (glyph.vmetric) { + glyphWidth = glyph.vmetric[0]; + vMetricX = glyph.vmetric[1]; + vMetricY = glyph.vmetric[2]; + } else { + glyphWidth = glyph.width; + vMetricX = glyph.width * 0.5; + vMetricY = defaultVMetrics[2]; + } + } else { + glyphWidth = glyph.width; + } + + var glyphUnicode = glyph.unicode; + if (NormalizedUnicodes[glyphUnicode] !== undefined) { + glyphUnicode = NormalizedUnicodes[glyphUnicode]; + } + glyphUnicode = reverseIfRtl(glyphUnicode); + + // The following will calculate the x and y of the individual glyphs. + // if (font.vertical) { + // tsm[4] -= vMetricX * Math.abs(textState.fontSize) * + // textState.fontMatrix[0]; + // tsm[5] -= vMetricY * textState.fontSize * + // textState.fontMatrix[0]; + // } + // var trm = Util.transform(textState.textMatrix, tsm); + // var pt = Util.applyTransform([trm[4], trm[5]], textState.ctm); + // var x = pt[0]; + // var y = pt[1]; + + var charSpacing = textState.charSpacing; + if (glyph.isSpace) { + var wordSpacing = textState.wordSpacing; + charSpacing += wordSpacing; + if (wordSpacing > 0) { + addFakeSpaces(wordSpacing, textChunk.str); + } + } + + var tx = 0; + var ty = 0; + if (!font.vertical) { + var w0 = glyphWidth * textState.fontMatrix[0]; + tx = (w0 * textState.fontSize + charSpacing) * + textState.textHScale; + width += tx; + } else { + var w1 = glyphWidth * textState.fontMatrix[0]; + ty = w1 * textState.fontSize + charSpacing; + height += ty; + } + textState.translateTextMatrix(tx, ty); + + textChunk.str.push(glyphUnicode); + } + + if (!font.vertical) { + textChunk.lastAdvanceWidth = width; + textChunk.width += width * textChunk.textAdvanceScale; + } else { + textChunk.lastAdvanceHeight = height; + textChunk.height += Math.abs(height * textChunk.textAdvanceScale); + } + + return textChunk; + } + + function addFakeSpaces(width, strBuf) { + if (width < textContentItem.fakeSpaceMin) { + return; + } + if (width < textContentItem.fakeMultiSpaceMin) { + strBuf.push(' '); + return; + } + var fakeSpaces = Math.round(width / textContentItem.spaceWidth); + while (fakeSpaces-- > 0) { + strBuf.push(' '); + } + } + + function flushTextContentItem() { + if (!textContentItem.initialized) { + return; + } + textContent.items.push(runBidiTransform(textContentItem)); + + textContentItem.initialized = false; + textContentItem.str.length = 0; + } + + var timeSlotManager = new TimeSlotManager(); + + return new Promise(function next(resolve, reject) { + task.ensureNotTerminated(); + timeSlotManager.reset(); + var stop, operation = {}, args = []; + while (!(stop = timeSlotManager.check())) { + // The arguments parsed by read() are not used beyond this loop, so + // we can reuse the same array on every iteration, thus avoiding + // unnecessary allocations. + args.length = 0; + operation.args = args; + if (!(preprocessor.read(operation))) { + break; + } + textState = stateManager.state; + var fn = operation.fn; + args = operation.args; + var advance; + + switch (fn | 0) { + case OPS.setFont: + flushTextContentItem(); + textState.fontSize = args[1]; + return handleSetFont(args[0].name).then(function() { + next(resolve, reject); + }, reject); + case OPS.setTextRise: + flushTextContentItem(); + textState.textRise = args[0]; + break; + case OPS.setHScale: + flushTextContentItem(); + textState.textHScale = args[0] / 100; + break; + case OPS.setLeading: + flushTextContentItem(); + textState.leading = args[0]; + break; + case OPS.moveText: + // Optimization to treat same line movement as advance + var isSameTextLine = !textState.font ? false : + ((textState.font.vertical ? args[0] : args[1]) === 0); + advance = args[0] - args[1]; + if (isSameTextLine && textContentItem.initialized && + advance > 0 && + advance <= textContentItem.fakeMultiSpaceMax) { + textState.translateTextLineMatrix(args[0], args[1]); + textContentItem.width += + (args[0] - textContentItem.lastAdvanceWidth); + textContentItem.height += + (args[1] - textContentItem.lastAdvanceHeight); + var diff = (args[0] - textContentItem.lastAdvanceWidth) - + (args[1] - textContentItem.lastAdvanceHeight); + addFakeSpaces(diff, textContentItem.str); + break; + } + + flushTextContentItem(); + textState.translateTextLineMatrix(args[0], args[1]); + textState.textMatrix = textState.textLineMatrix.slice(); + break; + case OPS.setLeadingMoveText: + flushTextContentItem(); + textState.leading = -args[1]; + textState.translateTextLineMatrix(args[0], args[1]); + textState.textMatrix = textState.textLineMatrix.slice(); + break; + case OPS.nextLine: + flushTextContentItem(); + textState.carriageReturn(); + break; + case OPS.setTextMatrix: + flushTextContentItem(); + textState.setTextMatrix(args[0], args[1], args[2], args[3], + args[4], args[5]); + textState.setTextLineMatrix(args[0], args[1], args[2], args[3], + args[4], args[5]); + break; + case OPS.setCharSpacing: + textState.charSpacing = args[0]; + break; + case OPS.setWordSpacing: + textState.wordSpacing = args[0]; + break; + case OPS.beginText: + flushTextContentItem(); + textState.textMatrix = IDENTITY_MATRIX.slice(); + textState.textLineMatrix = IDENTITY_MATRIX.slice(); + break; + case OPS.showSpacedText: + var items = args[0]; + var offset; + for (var j = 0, jj = items.length; j < jj; j++) { + if (typeof items[j] === 'string') { + buildTextContentItem(items[j]); + } else { + ensureTextContentItem(); + + // PDF Specification 5.3.2 states: + // The number is expressed in thousandths of a unit of text + // space. + // This amount is subtracted from the current horizontal or + // vertical coordinate, depending on the writing mode. + // In the default coordinate system, a positive adjustment + // has the effect of moving the next glyph painted either to + // the left or down by the given amount. + advance = items[j] * textState.fontSize / 1000; + var breakTextRun = false; + if (textState.font.vertical) { + offset = advance * + (textState.textHScale * textState.textMatrix[2] + + textState.textMatrix[3]); + textState.translateTextMatrix(0, advance); + breakTextRun = textContentItem.textRunBreakAllowed && + advance > textContentItem.fakeMultiSpaceMax; + if (!breakTextRun) { + // Value needs to be added to height to paint down. + textContentItem.height += offset; + } + } else { + advance = -advance; + offset = advance * ( + textState.textHScale * textState.textMatrix[0] + + textState.textMatrix[1]); + textState.translateTextMatrix(advance, 0); + breakTextRun = textContentItem.textRunBreakAllowed && + advance > textContentItem.fakeMultiSpaceMax; + if (!breakTextRun) { + // Value needs to be subtracted from width to paint left. + textContentItem.width += offset; + } + } + if (breakTextRun) { + flushTextContentItem(); + } else if (advance > 0) { + addFakeSpaces(advance, textContentItem.str); + } + } + } + break; + case OPS.showText: + buildTextContentItem(args[0]); + break; + case OPS.nextLineShowText: + flushTextContentItem(); + textState.carriageReturn(); + buildTextContentItem(args[0]); + break; + case OPS.nextLineSetSpacingShowText: + flushTextContentItem(); + textState.wordSpacing = args[0]; + textState.charSpacing = args[1]; + textState.carriageReturn(); + buildTextContentItem(args[2]); + break; + case OPS.paintXObject: + flushTextContentItem(); + if (args[0].code) { + break; + } + + if (!xobjs) { + xobjs = (resources.get('XObject') || Dict.empty); + } + + var name = args[0].name; + if (xobjsCache.key === name) { + if (xobjsCache.texts) { + Util.appendToArray(textContent.items, xobjsCache.texts.items); + Util.extendObj(textContent.styles, xobjsCache.texts.styles); + } + break; + } + + var xobj = xobjs.get(name); + if (!xobj) { + break; + } + assert(isStream(xobj), 'XObject should be a stream'); + + var type = xobj.dict.get('Subtype'); + assert(isName(type), + 'XObject should have a Name subtype'); + + if ('Form' !== type.name) { + xobjsCache.key = name; + xobjsCache.texts = null; + break; + } + + stateManager.save(); + var matrix = xobj.dict.get('Matrix'); + if (isArray(matrix) && matrix.length === 6) { + stateManager.transform(matrix); + } + + return self.getTextContent(xobj, task, + xobj.dict.get('Resources') || resources, stateManager, + normalizeWhitespace).then(function (formTextContent) { + Util.appendToArray(textContent.items, formTextContent.items); + Util.extendObj(textContent.styles, formTextContent.styles); + stateManager.restore(); + + xobjsCache.key = name; + xobjsCache.texts = formTextContent; + + next(resolve, reject); + }, reject); + case OPS.setGState: + flushTextContentItem(); + var dictName = args[0]; + var extGState = resources.get('ExtGState'); + + if (!isDict(extGState) || !extGState.has(dictName.name)) { + break; + } + + var gsStateMap = extGState.get(dictName.name); + var gsStateFont = null; + for (var key in gsStateMap) { + if (key === 'Font') { + assert(!gsStateFont); + gsStateFont = gsStateMap[key]; + } + } + if (gsStateFont) { + textState.fontSize = gsStateFont[1]; + return handleSetFont(gsStateFont[0]).then(function() { + next(resolve, reject); + }, reject); + } + break; + } // switch + } // while + if (stop) { + deferred.then(function () { + next(resolve, reject); + }, reject); + return; + } + flushTextContentItem(); + resolve(textContent); + }); + }, + + extractDataStructures: function + partialEvaluatorExtractDataStructures(dict, baseDict, + xref, properties) { + // 9.10.2 + var toUnicode = (dict.get('ToUnicode') || baseDict.get('ToUnicode')); + if (toUnicode) { + properties.toUnicode = this.readToUnicode(toUnicode); + } + if (properties.composite) { + // CIDSystemInfo helps to match CID to glyphs + var cidSystemInfo = dict.get('CIDSystemInfo'); + if (isDict(cidSystemInfo)) { + properties.cidSystemInfo = { + registry: cidSystemInfo.get('Registry'), + ordering: cidSystemInfo.get('Ordering'), + supplement: cidSystemInfo.get('Supplement') + }; + } + + var cidToGidMap = dict.get('CIDToGIDMap'); + if (isStream(cidToGidMap)) { + properties.cidToGidMap = this.readCidToGidMap(cidToGidMap); + } + } + + // Based on 9.6.6 of the spec the encoding can come from multiple places + // and depends on the font type. The base encoding and differences are + // read here, but the encoding that is actually used is chosen during + // glyph mapping in the font. + // TODO: Loading the built in encoding in the font would allow the + // differences to be merged in here not require us to hold on to it. + var differences = []; + var baseEncodingName = null; + var encoding; + if (dict.has('Encoding')) { + encoding = dict.get('Encoding'); + if (isDict(encoding)) { + baseEncodingName = encoding.get('BaseEncoding'); + baseEncodingName = (isName(baseEncodingName) ? + baseEncodingName.name : null); + // Load the differences between the base and original + if (encoding.has('Differences')) { + var diffEncoding = encoding.get('Differences'); + var index = 0; + for (var j = 0, jj = diffEncoding.length; j < jj; j++) { + var data = diffEncoding[j]; + if (isNum(data)) { + index = data; + } else if (isName(data)) { + differences[index++] = data.name; + } else if (isRef(data)) { + diffEncoding[j--] = xref.fetch(data); + continue; + } else { + error('Invalid entry in \'Differences\' array: ' + data); } } } - this.eof = true; + } else if (isName(encoding)) { + baseEncodingName = encoding.name; + } else { + error('Encoding is not a Name nor a Dict'); } - } else if (this.err && this.eoline) { - while (true) { - code1 = this.lookBits(13); - if (code1 === EOF) { - this.eof = true; - return null; + // According to table 114 if the encoding is a named encoding it must be + // one of these predefined encodings. + if ((baseEncodingName !== 'MacRomanEncoding' && + baseEncodingName !== 'MacExpertEncoding' && + baseEncodingName !== 'WinAnsiEncoding')) { + baseEncodingName = null; + } + } + + if (baseEncodingName) { + properties.defaultEncoding = Encodings[baseEncodingName].slice(); + } else { + encoding = (properties.type === 'TrueType' ? + Encodings.WinAnsiEncoding : Encodings.StandardEncoding); + // The Symbolic attribute can be misused for regular fonts + // Heuristic: we have to check if the font is a standard one also + if (!!(properties.flags & FontFlags.Symbolic)) { + encoding = Encodings.MacRomanEncoding; + if (!properties.file) { + if (/Symbol/i.test(properties.name)) { + encoding = Encodings.SymbolSetEncoding; + } else if (/Dingbats/i.test(properties.name)) { + encoding = Encodings.ZapfDingbatsEncoding; + } } - if ((code1 >> 1) === 1) { + } + properties.defaultEncoding = encoding; + } + + properties.differences = differences; + properties.baseEncodingName = baseEncodingName; + properties.dict = dict; + }, + + readToUnicode: function PartialEvaluator_readToUnicode(toUnicode) { + var cmap, cmapObj = toUnicode; + if (isName(cmapObj)) { + cmap = CMapFactory.create(cmapObj, + { url: PDFJS.cMapUrl, packed: PDFJS.cMapPacked }, null); + if (cmap instanceof IdentityCMap) { + return new IdentityToUnicodeMap(0, 0xFFFF); + } + return new ToUnicodeMap(cmap.getMap()); + } else if (isStream(cmapObj)) { + cmap = CMapFactory.create(cmapObj, + { url: PDFJS.cMapUrl, packed: PDFJS.cMapPacked }, null); + if (cmap instanceof IdentityCMap) { + return new IdentityToUnicodeMap(0, 0xFFFF); + } + var map = new Array(cmap.length); + // Convert UTF-16BE + // NOTE: cmap can be a sparse array, so use forEach instead of for(;;) + // to iterate over all keys. + cmap.forEach(function(charCode, token) { + var str = []; + for (var k = 0; k < token.length; k += 2) { + var w1 = (token.charCodeAt(k) << 8) | token.charCodeAt(k + 1); + if ((w1 & 0xF800) !== 0xD800) { // w1 < 0xD800 || w1 > 0xDFFF + str.push(w1); + continue; + } + k += 2; + var w2 = (token.charCodeAt(k) << 8) | token.charCodeAt(k + 1); + str.push(((w1 & 0x3ff) << 10) + (w2 & 0x3ff) + 0x10000); + } + map[charCode] = String.fromCharCode.apply(String, str); + }); + return new ToUnicodeMap(map); + } + return null; + }, + + readCidToGidMap: function PartialEvaluator_readCidToGidMap(cidToGidStream) { + // Extract the encoding from the CIDToGIDMap + var glyphsData = cidToGidStream.getBytes(); + + // Set encoding 0 to later verify the font has an encoding + var result = []; + for (var j = 0, jj = glyphsData.length; j < jj; j++) { + var glyphID = (glyphsData[j++] << 8) | glyphsData[j]; + if (glyphID === 0) { + continue; + } + var code = j >> 1; + result[code] = glyphID; + } + return result; + }, + + extractWidths: function PartialEvaluator_extractWidths(dict, xref, + descriptor, + properties) { + var glyphsWidths = []; + var defaultWidth = 0; + var glyphsVMetrics = []; + var defaultVMetrics; + var i, ii, j, jj, start, code, widths; + if (properties.composite) { + defaultWidth = dict.get('DW') || 1000; + + widths = dict.get('W'); + if (widths) { + for (i = 0, ii = widths.length; i < ii; i++) { + start = widths[i++]; + code = xref.fetchIfRef(widths[i]); + if (isArray(code)) { + for (j = 0, jj = code.length; j < jj; j++) { + glyphsWidths[start++] = code[j]; + } + } else { + var width = widths[++i]; + for (j = start; j <= code; j++) { + glyphsWidths[j] = width; + } + } + } + } + + if (properties.vertical) { + var vmetrics = (dict.get('DW2') || [880, -1000]); + defaultVMetrics = [vmetrics[1], defaultWidth * 0.5, vmetrics[0]]; + vmetrics = dict.get('W2'); + if (vmetrics) { + for (i = 0, ii = vmetrics.length; i < ii; i++) { + start = vmetrics[i++]; + code = xref.fetchIfRef(vmetrics[i]); + if (isArray(code)) { + for (j = 0, jj = code.length; j < jj; j++) { + glyphsVMetrics[start++] = [code[j++], code[j++], code[j]]; + } + } else { + var vmetric = [vmetrics[++i], vmetrics[++i], vmetrics[++i]]; + for (j = start; j <= code; j++) { + glyphsVMetrics[j] = vmetric; + } + } + } + } + } + } else { + var firstChar = properties.firstChar; + widths = dict.get('Widths'); + if (widths) { + j = firstChar; + for (i = 0, ii = widths.length; i < ii; i++) { + glyphsWidths[j++] = widths[i]; + } + defaultWidth = (parseFloat(descriptor.get('MissingWidth')) || 0); + } else { + // Trying get the BaseFont metrics (see comment above). + var baseFontName = dict.get('BaseFont'); + if (isName(baseFontName)) { + var metrics = this.getBaseFontMetrics(baseFontName.name); + + glyphsWidths = this.buildCharCodeToWidth(metrics.widths, + properties); + defaultWidth = metrics.defaultWidth; + } + } + } + + // Heuristic: detection of monospace font by checking all non-zero widths + var isMonospace = true; + var firstWidth = defaultWidth; + for (var glyph in glyphsWidths) { + var glyphWidth = glyphsWidths[glyph]; + if (!glyphWidth) { + continue; + } + if (!firstWidth) { + firstWidth = glyphWidth; + continue; + } + if (firstWidth !== glyphWidth) { + isMonospace = false; + break; + } + } + if (isMonospace) { + properties.flags |= FontFlags.FixedPitch; + } + + properties.defaultWidth = defaultWidth; + properties.widths = glyphsWidths; + properties.defaultVMetrics = defaultVMetrics; + properties.vmetrics = glyphsVMetrics; + }, + + isSerifFont: function PartialEvaluator_isSerifFont(baseFontName) { + // Simulating descriptor flags attribute + var fontNameWoStyle = baseFontName.split('-')[0]; + return (fontNameWoStyle in serifFonts) || + (fontNameWoStyle.search(/serif/gi) !== -1); + }, + + getBaseFontMetrics: function PartialEvaluator_getBaseFontMetrics(name) { + var defaultWidth = 0; + var widths = []; + var monospace = false; + var lookupName = (stdFontMap[name] || name); + + if (!(lookupName in Metrics)) { + // Use default fonts for looking up font metrics if the passed + // font is not a base font + if (this.isSerifFont(name)) { + lookupName = 'Times-Roman'; + } else { + lookupName = 'Helvetica'; + } + } + var glyphWidths = Metrics[lookupName]; + + if (isNum(glyphWidths)) { + defaultWidth = glyphWidths; + monospace = true; + } else { + widths = glyphWidths; + } + + return { + defaultWidth: defaultWidth, + monospace: monospace, + widths: widths + }; + }, + + buildCharCodeToWidth: + function PartialEvaluator_bulildCharCodeToWidth(widthsByGlyphName, + properties) { + var widths = Object.create(null); + var differences = properties.differences; + var encoding = properties.defaultEncoding; + for (var charCode = 0; charCode < 256; charCode++) { + if (charCode in differences && + widthsByGlyphName[differences[charCode]]) { + widths[charCode] = widthsByGlyphName[differences[charCode]]; + continue; + } + if (charCode in encoding && widthsByGlyphName[encoding[charCode]]) { + widths[charCode] = widthsByGlyphName[encoding[charCode]]; + continue; + } + } + return widths; + }, + + preEvaluateFont: function PartialEvaluator_preEvaluateFont(dict, xref) { + var baseDict = dict; + var type = dict.get('Subtype'); + assert(isName(type), 'invalid font Subtype'); + + var composite = false; + var uint8array; + if (type.name === 'Type0') { + // If font is a composite + // - get the descendant font + // - set the type according to the descendant font + // - get the FontDescriptor from the descendant font + var df = dict.get('DescendantFonts'); + if (!df) { + error('Descendant fonts are not specified'); + } + dict = (isArray(df) ? xref.fetchIfRef(df[0]) : df); + + type = dict.get('Subtype'); + assert(isName(type), 'invalid font Subtype'); + composite = true; + } + + var descriptor = dict.get('FontDescriptor'); + if (descriptor) { + var hash = new MurmurHash3_64(); + var encoding = baseDict.getRaw('Encoding'); + if (isName(encoding)) { + hash.update(encoding.name); + } else if (isRef(encoding)) { + hash.update(encoding.num + '_' + encoding.gen); + } else if (isDict(encoding)) { + var keys = encoding.getKeys(); + for (var i = 0, ii = keys.length; i < ii; i++) { + var entry = encoding.getRaw(keys[i]); + if (isName(entry)) { + hash.update(entry.name); + } else if (isRef(entry)) { + hash.update(entry.num + '_' + entry.gen); + } else if (isArray(entry)) { // 'Differences' entry. + // Ideally we should check the contents of the array, but to avoid + // parsing it here and then again in |extractDataStructures|, + // we only use the array length for now (fixes bug1157493.pdf). + hash.update(entry.length.toString()); + } + } + } + + var toUnicode = dict.get('ToUnicode') || baseDict.get('ToUnicode'); + if (isStream(toUnicode)) { + var stream = toUnicode.str || toUnicode; + uint8array = stream.buffer ? + new Uint8Array(stream.buffer.buffer, 0, stream.bufferLength) : + new Uint8Array(stream.bytes.buffer, + stream.start, stream.end - stream.start); + hash.update(uint8array); + + } else if (isName(toUnicode)) { + hash.update(toUnicode.name); + } + + var widths = dict.get('Widths') || baseDict.get('Widths'); + if (widths) { + uint8array = new Uint8Array(new Uint32Array(widths).buffer); + hash.update(uint8array); + } + } + + return { + descriptor: descriptor, + dict: dict, + baseDict: baseDict, + composite: composite, + type: type.name, + hash: hash ? hash.hexdigest() : '' + }; + }, + + translateFont: function PartialEvaluator_translateFont(preEvaluatedFont, + xref) { + var baseDict = preEvaluatedFont.baseDict; + var dict = preEvaluatedFont.dict; + var composite = preEvaluatedFont.composite; + var descriptor = preEvaluatedFont.descriptor; + var type = preEvaluatedFont.type; + var maxCharIndex = (composite ? 0xFFFF : 0xFF); + var properties; + + if (!descriptor) { + if (type === 'Type3') { + // FontDescriptor is only required for Type3 fonts when the document + // is a tagged pdf. Create a barbebones one to get by. + descriptor = new Dict(null); + descriptor.set('FontName', Name.get(type)); + descriptor.set('FontBBox', dict.get('FontBBox')); + } else { + // Before PDF 1.5 if the font was one of the base 14 fonts, having a + // FontDescriptor was not required. + // This case is here for compatibility. + var baseFontName = dict.get('BaseFont'); + if (!isName(baseFontName)) { + error('Base font is not specified'); + } + + // Using base font name as a font name. + baseFontName = baseFontName.name.replace(/[,_]/g, '-'); + var metrics = this.getBaseFontMetrics(baseFontName); + + // Simulating descriptor flags attribute + var fontNameWoStyle = baseFontName.split('-')[0]; + var flags = + (this.isSerifFont(fontNameWoStyle) ? FontFlags.Serif : 0) | + (metrics.monospace ? FontFlags.FixedPitch : 0) | + (symbolsFonts[fontNameWoStyle] ? FontFlags.Symbolic : + FontFlags.Nonsymbolic); + + properties = { + type: type, + name: baseFontName, + widths: metrics.widths, + defaultWidth: metrics.defaultWidth, + flags: flags, + firstChar: 0, + lastChar: maxCharIndex + }; + this.extractDataStructures(dict, dict, xref, properties); + properties.widths = this.buildCharCodeToWidth(metrics.widths, + properties); + return new Font(baseFontName, null, properties); + } + } + + // According to the spec if 'FontDescriptor' is declared, 'FirstChar', + // 'LastChar' and 'Widths' should exist too, but some PDF encoders seem + // to ignore this rule when a variant of a standart font is used. + // TODO Fill the width array depending on which of the base font this is + // a variant. + var firstChar = (dict.get('FirstChar') || 0); + var lastChar = (dict.get('LastChar') || maxCharIndex); + + var fontName = descriptor.get('FontName'); + var baseFont = dict.get('BaseFont'); + // Some bad PDFs have a string as the font name. + if (isString(fontName)) { + fontName = Name.get(fontName); + } + if (isString(baseFont)) { + baseFont = Name.get(baseFont); + } + + if (type !== 'Type3') { + var fontNameStr = fontName && fontName.name; + var baseFontStr = baseFont && baseFont.name; + if (fontNameStr !== baseFontStr) { + info('The FontDescriptor\'s FontName is "' + fontNameStr + + '" but should be the same as the Font\'s BaseFont "' + + baseFontStr + '"'); + // Workaround for cases where e.g. fontNameStr = 'Arial' and + // baseFontStr = 'Arial,Bold' (needed when no font file is embedded). + if (fontNameStr && baseFontStr && + baseFontStr.indexOf(fontNameStr) === 0) { + fontName = baseFont; + } + } + } + fontName = (fontName || baseFont); + + assert(isName(fontName), 'invalid font name'); + + var fontFile = descriptor.get('FontFile', 'FontFile2', 'FontFile3'); + if (fontFile) { + if (fontFile.dict) { + var subtype = fontFile.dict.get('Subtype'); + if (subtype) { + subtype = subtype.name; + } + var length1 = fontFile.dict.get('Length1'); + var length2 = fontFile.dict.get('Length2'); + } + } + + properties = { + type: type, + name: fontName.name, + subtype: subtype, + file: fontFile, + length1: length1, + length2: length2, + loadedName: baseDict.loadedName, + composite: composite, + wideChars: composite, + fixedPitch: false, + fontMatrix: (dict.get('FontMatrix') || FONT_IDENTITY_MATRIX), + firstChar: firstChar || 0, + lastChar: (lastChar || maxCharIndex), + bbox: descriptor.get('FontBBox'), + ascent: descriptor.get('Ascent'), + descent: descriptor.get('Descent'), + xHeight: descriptor.get('XHeight'), + capHeight: descriptor.get('CapHeight'), + flags: descriptor.get('Flags'), + italicAngle: descriptor.get('ItalicAngle'), + coded: false + }; + + if (composite) { + var cidEncoding = baseDict.get('Encoding'); + if (isName(cidEncoding)) { + properties.cidEncoding = cidEncoding.name; + } + properties.cMap = CMapFactory.create(cidEncoding, + { url: PDFJS.cMapUrl, packed: PDFJS.cMapPacked }, null); + properties.vertical = properties.cMap.vertical; + } + this.extractDataStructures(dict, baseDict, xref, properties); + this.extractWidths(dict, xref, descriptor, properties); + + if (type === 'Type3') { + properties.isType3Font = true; + } + + return new Font(fontName.name, fontFile, properties); + } + }; + + return PartialEvaluator; +})(); + +var TranslatedFont = (function TranslatedFontClosure() { + function TranslatedFont(loadedName, font, dict) { + this.loadedName = loadedName; + this.font = font; + this.dict = dict; + this.type3Loaded = null; + this.sent = false; + } + TranslatedFont.prototype = { + send: function (handler) { + if (this.sent) { + return; + } + var fontData = this.font.exportData(); + handler.send('commonobj', [ + this.loadedName, + 'Font', + fontData + ]); + this.sent = true; + }, + loadType3Data: function (evaluator, resources, parentOperatorList, task) { + assert(this.font.isType3Font); + + if (this.type3Loaded) { + return this.type3Loaded; + } + + var translatedFont = this.font; + var loadCharProcsPromise = Promise.resolve(); + var charProcs = this.dict.get('CharProcs').getAll(); + var fontResources = this.dict.get('Resources') || resources; + var charProcKeys = Object.keys(charProcs); + var charProcOperatorList = {}; + for (var i = 0, n = charProcKeys.length; i < n; ++i) { + loadCharProcsPromise = loadCharProcsPromise.then(function (key) { + var glyphStream = charProcs[key]; + var operatorList = new OperatorList(); + return evaluator.getOperatorList(glyphStream, task, fontResources, + operatorList).then(function () { + charProcOperatorList[key] = operatorList.getIR(); + + // Add the dependencies to the parent operator list so they are + // resolved before sub operator list is executed synchronously. + parentOperatorList.addDependencies(operatorList.dependencies); + }, function (reason) { + warn('Type3 font resource \"' + key + '\" is not available'); + var operatorList = new OperatorList(); + charProcOperatorList[key] = operatorList.getIR(); + }); + }.bind(this, charProcKeys[i])); + } + this.type3Loaded = loadCharProcsPromise.then(function () { + translatedFont.charProcOperatorList = charProcOperatorList; + }); + return this.type3Loaded; + } + }; + return TranslatedFont; +})(); + +var OperatorList = (function OperatorListClosure() { + var CHUNK_SIZE = 1000; + var CHUNK_SIZE_ABOUT = CHUNK_SIZE - 5; // close to chunk size + + function getTransfers(queue) { + var transfers = []; + var fnArray = queue.fnArray, argsArray = queue.argsArray; + for (var i = 0, ii = queue.length; i < ii; i++) { + switch (fnArray[i]) { + case OPS.paintInlineImageXObject: + case OPS.paintInlineImageXObjectGroup: + case OPS.paintImageMaskXObject: + var arg = argsArray[i][0]; // first param in imgData + if (!arg.cached) { + transfers.push(arg.data.buffer); + } + break; + } + } + return transfers; + } + + function OperatorList(intent, messageHandler, pageIndex) { + this.messageHandler = messageHandler; + this.fnArray = []; + this.argsArray = []; + this.dependencies = {}; + this._totalLength = 0; + this.pageIndex = pageIndex; + this.intent = intent; + } + + OperatorList.prototype = { + get length() { + return this.argsArray.length; + }, + + /** + * @returns {number} The total length of the entire operator list, + * since `this.length === 0` after flushing. + */ + get totalLength() { + return (this._totalLength + this.length); + }, + + addOp: function(fn, args) { + this.fnArray.push(fn); + this.argsArray.push(args); + if (this.messageHandler) { + if (this.fnArray.length >= CHUNK_SIZE) { + this.flush(); + } else if (this.fnArray.length >= CHUNK_SIZE_ABOUT && + (fn === OPS.restore || fn === OPS.endText)) { + // heuristic to flush on boundary of restore or endText + this.flush(); + } + } + }, + + addDependency: function(dependency) { + if (dependency in this.dependencies) { + return; + } + this.dependencies[dependency] = true; + this.addOp(OPS.dependency, [dependency]); + }, + + addDependencies: function(dependencies) { + for (var key in dependencies) { + this.addDependency(key); + } + }, + + addOpList: function(opList) { + Util.extendObj(this.dependencies, opList.dependencies); + for (var i = 0, ii = opList.length; i < ii; i++) { + this.addOp(opList.fnArray[i], opList.argsArray[i]); + } + }, + + getIR: function() { + return { + fnArray: this.fnArray, + argsArray: this.argsArray, + length: this.length + }; + }, + + flush: function(lastChunk) { + if (this.intent !== 'oplist') { + new QueueOptimizer().optimize(this); + } + var transfers = getTransfers(this); + var length = this.length; + this._totalLength += length; + + this.messageHandler.send('RenderPageChunk', { + operatorList: { + fnArray: this.fnArray, + argsArray: this.argsArray, + lastChunk: lastChunk, + length: length + }, + pageIndex: this.pageIndex, + intent: this.intent + }, transfers); + this.dependencies = {}; + this.fnArray.length = 0; + this.argsArray.length = 0; + } + }; + + return OperatorList; +})(); + +var StateManager = (function StateManagerClosure() { + function StateManager(initialState) { + this.state = initialState; + this.stateStack = []; + } + StateManager.prototype = { + save: function () { + var old = this.state; + this.stateStack.push(this.state); + this.state = old.clone(); + }, + restore: function () { + var prev = this.stateStack.pop(); + if (prev) { + this.state = prev; + } + }, + transform: function (args) { + this.state.ctm = Util.transform(this.state.ctm, args); + } + }; + return StateManager; +})(); + +var TextState = (function TextStateClosure() { + function TextState() { + this.ctm = new Float32Array(IDENTITY_MATRIX); + this.fontSize = 0; + this.font = null; + this.fontMatrix = FONT_IDENTITY_MATRIX; + this.textMatrix = IDENTITY_MATRIX.slice(); + this.textLineMatrix = IDENTITY_MATRIX.slice(); + this.charSpacing = 0; + this.wordSpacing = 0; + this.leading = 0; + this.textHScale = 1; + this.textRise = 0; + } + + TextState.prototype = { + setTextMatrix: function TextState_setTextMatrix(a, b, c, d, e, f) { + var m = this.textMatrix; + m[0] = a; m[1] = b; m[2] = c; m[3] = d; m[4] = e; m[5] = f; + }, + setTextLineMatrix: function TextState_setTextMatrix(a, b, c, d, e, f) { + var m = this.textLineMatrix; + m[0] = a; m[1] = b; m[2] = c; m[3] = d; m[4] = e; m[5] = f; + }, + translateTextMatrix: function TextState_translateTextMatrix(x, y) { + var m = this.textMatrix; + m[4] = m[0] * x + m[2] * y + m[4]; + m[5] = m[1] * x + m[3] * y + m[5]; + }, + translateTextLineMatrix: function TextState_translateTextMatrix(x, y) { + var m = this.textLineMatrix; + m[4] = m[0] * x + m[2] * y + m[4]; + m[5] = m[1] * x + m[3] * y + m[5]; + }, + calcRenderMatrix: function TextState_calcRendeMatrix(ctm) { + // 9.4.4 Text Space Details + var tsm = [this.fontSize * this.textHScale, 0, + 0, this.fontSize, + 0, this.textRise]; + return Util.transform(ctm, Util.transform(this.textMatrix, tsm)); + }, + carriageReturn: function TextState_carriageReturn() { + this.translateTextLineMatrix(0, -this.leading); + this.textMatrix = this.textLineMatrix.slice(); + }, + clone: function TextState_clone() { + var clone = Object.create(this); + clone.textMatrix = this.textMatrix.slice(); + clone.textLineMatrix = this.textLineMatrix.slice(); + clone.fontMatrix = this.fontMatrix.slice(); + return clone; + } + }; + return TextState; +})(); + +var EvalState = (function EvalStateClosure() { + function EvalState() { + this.ctm = new Float32Array(IDENTITY_MATRIX); + this.font = null; + this.textRenderingMode = TextRenderingMode.FILL; + this.fillColorSpace = ColorSpace.singletons.gray; + this.strokeColorSpace = ColorSpace.singletons.gray; + } + EvalState.prototype = { + clone: function CanvasExtraState_clone() { + return Object.create(this); + }, + }; + return EvalState; +})(); + +var EvaluatorPreprocessor = (function EvaluatorPreprocessorClosure() { + // Specifies properties for each command + // + // If variableArgs === true: [0, `numArgs`] expected + // If variableArgs === false: exactly `numArgs` expected + var OP_MAP = { + // Graphic state + w: { id: OPS.setLineWidth, numArgs: 1, variableArgs: false }, + J: { id: OPS.setLineCap, numArgs: 1, variableArgs: false }, + j: { id: OPS.setLineJoin, numArgs: 1, variableArgs: false }, + M: { id: OPS.setMiterLimit, numArgs: 1, variableArgs: false }, + d: { id: OPS.setDash, numArgs: 2, variableArgs: false }, + ri: { id: OPS.setRenderingIntent, numArgs: 1, variableArgs: false }, + i: { id: OPS.setFlatness, numArgs: 1, variableArgs: false }, + gs: { id: OPS.setGState, numArgs: 1, variableArgs: false }, + q: { id: OPS.save, numArgs: 0, variableArgs: false }, + Q: { id: OPS.restore, numArgs: 0, variableArgs: false }, + cm: { id: OPS.transform, numArgs: 6, variableArgs: false }, + + // Path + m: { id: OPS.moveTo, numArgs: 2, variableArgs: false }, + l: { id: OPS.lineTo, numArgs: 2, variableArgs: false }, + c: { id: OPS.curveTo, numArgs: 6, variableArgs: false }, + v: { id: OPS.curveTo2, numArgs: 4, variableArgs: false }, + y: { id: OPS.curveTo3, numArgs: 4, variableArgs: false }, + h: { id: OPS.closePath, numArgs: 0, variableArgs: false }, + re: { id: OPS.rectangle, numArgs: 4, variableArgs: false }, + S: { id: OPS.stroke, numArgs: 0, variableArgs: false }, + s: { id: OPS.closeStroke, numArgs: 0, variableArgs: false }, + f: { id: OPS.fill, numArgs: 0, variableArgs: false }, + F: { id: OPS.fill, numArgs: 0, variableArgs: false }, + 'f*': { id: OPS.eoFill, numArgs: 0, variableArgs: false }, + B: { id: OPS.fillStroke, numArgs: 0, variableArgs: false }, + 'B*': { id: OPS.eoFillStroke, numArgs: 0, variableArgs: false }, + b: { id: OPS.closeFillStroke, numArgs: 0, variableArgs: false }, + 'b*': { id: OPS.closeEOFillStroke, numArgs: 0, variableArgs: false }, + n: { id: OPS.endPath, numArgs: 0, variableArgs: false }, + + // Clipping + W: { id: OPS.clip, numArgs: 0, variableArgs: false }, + 'W*': { id: OPS.eoClip, numArgs: 0, variableArgs: false }, + + // Text + BT: { id: OPS.beginText, numArgs: 0, variableArgs: false }, + ET: { id: OPS.endText, numArgs: 0, variableArgs: false }, + Tc: { id: OPS.setCharSpacing, numArgs: 1, variableArgs: false }, + Tw: { id: OPS.setWordSpacing, numArgs: 1, variableArgs: false }, + Tz: { id: OPS.setHScale, numArgs: 1, variableArgs: false }, + TL: { id: OPS.setLeading, numArgs: 1, variableArgs: false }, + Tf: { id: OPS.setFont, numArgs: 2, variableArgs: false }, + Tr: { id: OPS.setTextRenderingMode, numArgs: 1, variableArgs: false }, + Ts: { id: OPS.setTextRise, numArgs: 1, variableArgs: false }, + Td: { id: OPS.moveText, numArgs: 2, variableArgs: false }, + TD: { id: OPS.setLeadingMoveText, numArgs: 2, variableArgs: false }, + Tm: { id: OPS.setTextMatrix, numArgs: 6, variableArgs: false }, + 'T*': { id: OPS.nextLine, numArgs: 0, variableArgs: false }, + Tj: { id: OPS.showText, numArgs: 1, variableArgs: false }, + TJ: { id: OPS.showSpacedText, numArgs: 1, variableArgs: false }, + '\'': { id: OPS.nextLineShowText, numArgs: 1, variableArgs: false }, + '"': { id: OPS.nextLineSetSpacingShowText, numArgs: 3, + variableArgs: false }, + + // Type3 fonts + d0: { id: OPS.setCharWidth, numArgs: 2, variableArgs: false }, + d1: { id: OPS.setCharWidthAndBounds, numArgs: 6, variableArgs: false }, + + // Color + CS: { id: OPS.setStrokeColorSpace, numArgs: 1, variableArgs: false }, + cs: { id: OPS.setFillColorSpace, numArgs: 1, variableArgs: false }, + SC: { id: OPS.setStrokeColor, numArgs: 4, variableArgs: true }, + SCN: { id: OPS.setStrokeColorN, numArgs: 33, variableArgs: true }, + sc: { id: OPS.setFillColor, numArgs: 4, variableArgs: true }, + scn: { id: OPS.setFillColorN, numArgs: 33, variableArgs: true }, + G: { id: OPS.setStrokeGray, numArgs: 1, variableArgs: false }, + g: { id: OPS.setFillGray, numArgs: 1, variableArgs: false }, + RG: { id: OPS.setStrokeRGBColor, numArgs: 3, variableArgs: false }, + rg: { id: OPS.setFillRGBColor, numArgs: 3, variableArgs: false }, + K: { id: OPS.setStrokeCMYKColor, numArgs: 4, variableArgs: false }, + k: { id: OPS.setFillCMYKColor, numArgs: 4, variableArgs: false }, + + // Shading + sh: { id: OPS.shadingFill, numArgs: 1, variableArgs: false }, + + // Images + BI: { id: OPS.beginInlineImage, numArgs: 0, variableArgs: false }, + ID: { id: OPS.beginImageData, numArgs: 0, variableArgs: false }, + EI: { id: OPS.endInlineImage, numArgs: 1, variableArgs: false }, + + // XObjects + Do: { id: OPS.paintXObject, numArgs: 1, variableArgs: false }, + MP: { id: OPS.markPoint, numArgs: 1, variableArgs: false }, + DP: { id: OPS.markPointProps, numArgs: 2, variableArgs: false }, + BMC: { id: OPS.beginMarkedContent, numArgs: 1, variableArgs: false }, + BDC: { id: OPS.beginMarkedContentProps, numArgs: 2, + variableArgs: false }, + EMC: { id: OPS.endMarkedContent, numArgs: 0, variableArgs: false }, + + // Compatibility + BX: { id: OPS.beginCompat, numArgs: 0, variableArgs: false }, + EX: { id: OPS.endCompat, numArgs: 0, variableArgs: false }, + + // (reserved partial commands for the lexer) + BM: null, + BD: null, + 'true': null, + fa: null, + fal: null, + fals: null, + 'false': null, + nu: null, + nul: null, + 'null': null + }; + + function EvaluatorPreprocessor(stream, xref, stateManager) { + // TODO(mduan): pass array of knownCommands rather than OP_MAP + // dictionary + this.parser = new Parser(new Lexer(stream, OP_MAP), false, xref); + this.stateManager = stateManager; + this.nonProcessedArgs = []; + } + + EvaluatorPreprocessor.prototype = { + get savedStatesDepth() { + return this.stateManager.stateStack.length; + }, + + // |operation| is an object with two fields: + // + // - |fn| is an out param. + // + // - |args| is an inout param. On entry, it should have one of two values. + // + // - An empty array. This indicates that the caller is providing the + // array in which the args will be stored in. The caller should use + // this value if it can reuse a single array for each call to read(). + // + // - |null|. This indicates that the caller needs this function to create + // the array in which any args are stored in. If there are zero args, + // this function will leave |operation.args| as |null| (thus avoiding + // allocations that would occur if we used an empty array to represent + // zero arguments). Otherwise, it will replace |null| with a new array + // containing the arguments. The caller should use this value if it + // cannot reuse an array for each call to read(). + // + // These two modes are present because this function is very hot and so + // avoiding allocations where possible is worthwhile. + // + read: function EvaluatorPreprocessor_read(operation) { + var args = operation.args; + while (true) { + var obj = this.parser.getObj(); + if (isCmd(obj)) { + var cmd = obj.cmd; + // Check that the command is valid + var opSpec = OP_MAP[cmd]; + if (!opSpec) { + warn('Unknown command "' + cmd + '"'); + continue; + } + + var fn = opSpec.id; + var numArgs = opSpec.numArgs; + var argsLength = args !== null ? args.length : 0; + + if (!opSpec.variableArgs) { + // Postscript commands can be nested, e.g. /F2 /GS2 gs 5.711 Tf + if (argsLength !== numArgs) { + var nonProcessedArgs = this.nonProcessedArgs; + while (argsLength > numArgs) { + nonProcessedArgs.push(args.shift()); + argsLength--; + } + while (argsLength < numArgs && nonProcessedArgs.length !== 0) { + if (!args) { + args = []; + } + args.unshift(nonProcessedArgs.pop()); + argsLength++; + } + } + + if (argsLength < numArgs) { + // If we receive too few args, it's not possible to possible + // to execute the command, so skip the command + info('Command ' + fn + ': because expected ' + + numArgs + ' args, but received ' + argsLength + + ' args; skipping'); + args = null; + continue; + } + } else if (argsLength > numArgs) { + info('Command ' + fn + ': expected [0,' + numArgs + + '] args, but received ' + argsLength + ' args'); + } + + // TODO figure out how to type-check vararg functions + this.preprocessCommand(fn, args); + + operation.fn = fn; + operation.args = args; + return true; + } else { + if (isEOF(obj)) { + return false; // no more commands + } + // argument + if (obj !== null) { + if (!args) { + args = []; + } + args.push((obj instanceof Dict ? obj.getAll() : obj)); + assert(args.length <= 33, 'Too many arguments'); + } + } + } + }, + + preprocessCommand: + function EvaluatorPreprocessor_preprocessCommand(fn, args) { + switch (fn | 0) { + case OPS.save: + this.stateManager.save(); + break; + case OPS.restore: + this.stateManager.restore(); + break; + case OPS.transform: + this.stateManager.transform(args); + break; + } + } + }; + return EvaluatorPreprocessor; +})(); + +var QueueOptimizer = (function QueueOptimizerClosure() { + function addState(parentState, pattern, fn) { + var state = parentState; + for (var i = 0, ii = pattern.length - 1; i < ii; i++) { + var item = pattern[i]; + state = (state[item] || (state[item] = [])); + } + state[pattern[pattern.length - 1]] = fn; + } + + function handlePaintSolidColorImageMask(iFirstSave, count, fnArray, + argsArray) { + // Handles special case of mainly LaTeX documents which use image masks to + // draw lines with the current fill style. + // 'count' groups of (save, transform, paintImageMaskXObject, restore)+ + // have been found at iFirstSave. + var iFirstPIMXO = iFirstSave + 2; + for (var i = 0; i < count; i++) { + var arg = argsArray[iFirstPIMXO + 4 * i]; + var imageMask = arg.length === 1 && arg[0]; + if (imageMask && imageMask.width === 1 && imageMask.height === 1 && + (!imageMask.data.length || + (imageMask.data.length === 1 && imageMask.data[0] === 0))) { + fnArray[iFirstPIMXO + 4 * i] = OPS.paintSolidColorImageMask; + continue; + } + break; + } + return count - i; + } + + var InitialState = []; + + // This replaces (save, transform, paintInlineImageXObject, restore)+ + // sequences with one |paintInlineImageXObjectGroup| operation. + addState(InitialState, + [OPS.save, OPS.transform, OPS.paintInlineImageXObject, OPS.restore], + function foundInlineImageGroup(context) { + var MIN_IMAGES_IN_INLINE_IMAGES_BLOCK = 10; + var MAX_IMAGES_IN_INLINE_IMAGES_BLOCK = 200; + var MAX_WIDTH = 1000; + var IMAGE_PADDING = 1; + + var fnArray = context.fnArray, argsArray = context.argsArray; + var curr = context.iCurr; + var iFirstSave = curr - 3; + var iFirstTransform = curr - 2; + var iFirstPIIXO = curr - 1; + + // Look for the quartets. + var i = iFirstSave + 4; + var ii = fnArray.length; + while (i + 3 < ii) { + if (fnArray[i] !== OPS.save || + fnArray[i + 1] !== OPS.transform || + fnArray[i + 2] !== OPS.paintInlineImageXObject || + fnArray[i + 3] !== OPS.restore) { + break; // ops don't match + } + i += 4; + } + + // At this point, i is the index of the first op past the last valid + // quartet. + var count = Math.min((i - iFirstSave) / 4, + MAX_IMAGES_IN_INLINE_IMAGES_BLOCK); + if (count < MIN_IMAGES_IN_INLINE_IMAGES_BLOCK) { + return i; + } + + // assuming that heights of those image is too small (~1 pixel) + // packing as much as possible by lines + var maxX = 0; + var map = [], maxLineHeight = 0; + var currentX = IMAGE_PADDING, currentY = IMAGE_PADDING; + var q; + for (q = 0; q < count; q++) { + var transform = argsArray[iFirstTransform + (q << 2)]; + var img = argsArray[iFirstPIIXO + (q << 2)][0]; + if (currentX + img.width > MAX_WIDTH) { + // starting new line + maxX = Math.max(maxX, currentX); + currentY += maxLineHeight + 2 * IMAGE_PADDING; + currentX = 0; + maxLineHeight = 0; + } + map.push({ + transform: transform, + x: currentX, y: currentY, + w: img.width, h: img.height + }); + currentX += img.width + 2 * IMAGE_PADDING; + maxLineHeight = Math.max(maxLineHeight, img.height); + } + var imgWidth = Math.max(maxX, currentX) + IMAGE_PADDING; + var imgHeight = currentY + maxLineHeight + IMAGE_PADDING; + var imgData = new Uint8Array(imgWidth * imgHeight * 4); + var imgRowSize = imgWidth << 2; + for (q = 0; q < count; q++) { + var data = argsArray[iFirstPIIXO + (q << 2)][0].data; + // Copy image by lines and extends pixels into padding. + var rowSize = map[q].w << 2; + var dataOffset = 0; + var offset = (map[q].x + map[q].y * imgWidth) << 2; + imgData.set(data.subarray(0, rowSize), offset - imgRowSize); + for (var k = 0, kk = map[q].h; k < kk; k++) { + imgData.set(data.subarray(dataOffset, dataOffset + rowSize), offset); + dataOffset += rowSize; + offset += imgRowSize; + } + imgData.set(data.subarray(dataOffset - rowSize, dataOffset), offset); + while (offset >= 0) { + data[offset - 4] = data[offset]; + data[offset - 3] = data[offset + 1]; + data[offset - 2] = data[offset + 2]; + data[offset - 1] = data[offset + 3]; + data[offset + rowSize] = data[offset + rowSize - 4]; + data[offset + rowSize + 1] = data[offset + rowSize - 3]; + data[offset + rowSize + 2] = data[offset + rowSize - 2]; + data[offset + rowSize + 3] = data[offset + rowSize - 1]; + offset -= imgRowSize; + } + } + + // Replace queue items. + fnArray.splice(iFirstSave, count * 4, OPS.paintInlineImageXObjectGroup); + argsArray.splice(iFirstSave, count * 4, + [{ width: imgWidth, height: imgHeight, kind: ImageKind.RGBA_32BPP, + data: imgData }, map]); + + return iFirstSave + 1; + }); + + // This replaces (save, transform, paintImageMaskXObject, restore)+ + // sequences with one |paintImageMaskXObjectGroup| or one + // |paintImageMaskXObjectRepeat| operation. + addState(InitialState, + [OPS.save, OPS.transform, OPS.paintImageMaskXObject, OPS.restore], + function foundImageMaskGroup(context) { + var MIN_IMAGES_IN_MASKS_BLOCK = 10; + var MAX_IMAGES_IN_MASKS_BLOCK = 100; + var MAX_SAME_IMAGES_IN_MASKS_BLOCK = 1000; + + var fnArray = context.fnArray, argsArray = context.argsArray; + var curr = context.iCurr; + var iFirstSave = curr - 3; + var iFirstTransform = curr - 2; + var iFirstPIMXO = curr - 1; + + // Look for the quartets. + var i = iFirstSave + 4; + var ii = fnArray.length; + while (i + 3 < ii) { + if (fnArray[i] !== OPS.save || + fnArray[i + 1] !== OPS.transform || + fnArray[i + 2] !== OPS.paintImageMaskXObject || + fnArray[i + 3] !== OPS.restore) { + break; // ops don't match + } + i += 4; + } + + // At this point, i is the index of the first op past the last valid + // quartet. + var count = (i - iFirstSave) / 4; + count = handlePaintSolidColorImageMask(iFirstSave, count, fnArray, + argsArray); + if (count < MIN_IMAGES_IN_MASKS_BLOCK) { + return i; + } + + var q; + var isSameImage = false; + var iTransform, transformArgs; + var firstPIMXOArg0 = argsArray[iFirstPIMXO][0]; + if (argsArray[iFirstTransform][1] === 0 && + argsArray[iFirstTransform][2] === 0) { + isSameImage = true; + var firstTransformArg0 = argsArray[iFirstTransform][0]; + var firstTransformArg3 = argsArray[iFirstTransform][3]; + iTransform = iFirstTransform + 4; + var iPIMXO = iFirstPIMXO + 4; + for (q = 1; q < count; q++, iTransform += 4, iPIMXO += 4) { + transformArgs = argsArray[iTransform]; + if (argsArray[iPIMXO][0] !== firstPIMXOArg0 || + transformArgs[0] !== firstTransformArg0 || + transformArgs[1] !== 0 || + transformArgs[2] !== 0 || + transformArgs[3] !== firstTransformArg3) { + if (q < MIN_IMAGES_IN_MASKS_BLOCK) { + isSameImage = false; + } else { + count = q; + } + break; // different image or transform + } + } + } + + if (isSameImage) { + count = Math.min(count, MAX_SAME_IMAGES_IN_MASKS_BLOCK); + var positions = new Float32Array(count * 2); + iTransform = iFirstTransform; + for (q = 0; q < count; q++, iTransform += 4) { + transformArgs = argsArray[iTransform]; + positions[(q << 1)] = transformArgs[4]; + positions[(q << 1) + 1] = transformArgs[5]; + } + + // Replace queue items. + fnArray.splice(iFirstSave, count * 4, OPS.paintImageMaskXObjectRepeat); + argsArray.splice(iFirstSave, count * 4, + [firstPIMXOArg0, firstTransformArg0, firstTransformArg3, positions]); + } else { + count = Math.min(count, MAX_IMAGES_IN_MASKS_BLOCK); + var images = []; + for (q = 0; q < count; q++) { + transformArgs = argsArray[iFirstTransform + (q << 2)]; + var maskParams = argsArray[iFirstPIMXO + (q << 2)][0]; + images.push({ data: maskParams.data, width: maskParams.width, + height: maskParams.height, + transform: transformArgs }); + } + + // Replace queue items. + fnArray.splice(iFirstSave, count * 4, OPS.paintImageMaskXObjectGroup); + argsArray.splice(iFirstSave, count * 4, [images]); + } + + return iFirstSave + 1; + }); + + // This replaces (save, transform, paintImageXObject, restore)+ sequences + // with one paintImageXObjectRepeat operation, if the |transform| and + // |paintImageXObjectRepeat| ops are appropriate. + addState(InitialState, + [OPS.save, OPS.transform, OPS.paintImageXObject, OPS.restore], + function (context) { + var MIN_IMAGES_IN_BLOCK = 3; + var MAX_IMAGES_IN_BLOCK = 1000; + + var fnArray = context.fnArray, argsArray = context.argsArray; + var curr = context.iCurr; + var iFirstSave = curr - 3; + var iFirstTransform = curr - 2; + var iFirstPIXO = curr - 1; + var iFirstRestore = curr; + + if (argsArray[iFirstTransform][1] !== 0 || + argsArray[iFirstTransform][2] !== 0) { + return iFirstRestore + 1; // transform has the wrong form + } + + // Look for the quartets. + var firstPIXOArg0 = argsArray[iFirstPIXO][0]; + var firstTransformArg0 = argsArray[iFirstTransform][0]; + var firstTransformArg3 = argsArray[iFirstTransform][3]; + var i = iFirstSave + 4; + var ii = fnArray.length; + while (i + 3 < ii) { + if (fnArray[i] !== OPS.save || + fnArray[i + 1] !== OPS.transform || + fnArray[i + 2] !== OPS.paintImageXObject || + fnArray[i + 3] !== OPS.restore) { + break; // ops don't match + } + if (argsArray[i + 1][0] !== firstTransformArg0 || + argsArray[i + 1][1] !== 0 || + argsArray[i + 1][2] !== 0 || + argsArray[i + 1][3] !== firstTransformArg3) { + break; // transforms don't match + } + if (argsArray[i + 2][0] !== firstPIXOArg0) { + break; // images don't match + } + i += 4; + } + + // At this point, i is the index of the first op past the last valid + // quartet. + var count = Math.min((i - iFirstSave) / 4, MAX_IMAGES_IN_BLOCK); + if (count < MIN_IMAGES_IN_BLOCK) { + return i; + } + + // Extract the (x,y) positions from all of the matching transforms. + var positions = new Float32Array(count * 2); + var iTransform = iFirstTransform; + for (var q = 0; q < count; q++, iTransform += 4) { + var transformArgs = argsArray[iTransform]; + positions[(q << 1)] = transformArgs[4]; + positions[(q << 1) + 1] = transformArgs[5]; + } + + // Replace queue items. + var args = [firstPIXOArg0, firstTransformArg0, firstTransformArg3, + positions]; + fnArray.splice(iFirstSave, count * 4, OPS.paintImageXObjectRepeat); + argsArray.splice(iFirstSave, count * 4, args); + + return iFirstSave + 1; + }); + + // This replaces (beginText, setFont, setTextMatrix, showText, endText)+ + // sequences with (beginText, setFont, (setTextMatrix, showText)+, endText)+ + // sequences, if the font for each one is the same. + addState(InitialState, + [OPS.beginText, OPS.setFont, OPS.setTextMatrix, OPS.showText, OPS.endText], + function (context) { + var MIN_CHARS_IN_BLOCK = 3; + var MAX_CHARS_IN_BLOCK = 1000; + + var fnArray = context.fnArray, argsArray = context.argsArray; + var curr = context.iCurr; + var iFirstBeginText = curr - 4; + var iFirstSetFont = curr - 3; + var iFirstSetTextMatrix = curr - 2; + var iFirstShowText = curr - 1; + var iFirstEndText = curr; + + // Look for the quintets. + var firstSetFontArg0 = argsArray[iFirstSetFont][0]; + var firstSetFontArg1 = argsArray[iFirstSetFont][1]; + var i = iFirstBeginText + 5; + var ii = fnArray.length; + while (i + 4 < ii) { + if (fnArray[i] !== OPS.beginText || + fnArray[i + 1] !== OPS.setFont || + fnArray[i + 2] !== OPS.setTextMatrix || + fnArray[i + 3] !== OPS.showText || + fnArray[i + 4] !== OPS.endText) { + break; // ops don't match + } + if (argsArray[i + 1][0] !== firstSetFontArg0 || + argsArray[i + 1][1] !== firstSetFontArg1) { + break; // fonts don't match + } + i += 5; + } + + // At this point, i is the index of the first op past the last valid + // quintet. + var count = Math.min(((i - iFirstBeginText) / 5), MAX_CHARS_IN_BLOCK); + if (count < MIN_CHARS_IN_BLOCK) { + return i; + } + + // If the preceding quintet is (, setFont, setTextMatrix, + // showText, endText), include that as well. (E.g. might be + // |dependency|.) + var iFirst = iFirstBeginText; + if (iFirstBeginText >= 4 && + fnArray[iFirstBeginText - 4] === fnArray[iFirstSetFont] && + fnArray[iFirstBeginText - 3] === fnArray[iFirstSetTextMatrix] && + fnArray[iFirstBeginText - 2] === fnArray[iFirstShowText] && + fnArray[iFirstBeginText - 1] === fnArray[iFirstEndText] && + argsArray[iFirstBeginText - 4][0] === firstSetFontArg0 && + argsArray[iFirstBeginText - 4][1] === firstSetFontArg1) { + count++; + iFirst -= 5; + } + + // Remove (endText, beginText, setFont) trios. + var iEndText = iFirst + 4; + for (var q = 1; q < count; q++) { + fnArray.splice(iEndText, 3); + argsArray.splice(iEndText, 3); + iEndText += 2; + } + + return iEndText + 1; + }); + + function QueueOptimizer() {} + + QueueOptimizer.prototype = { + optimize: function QueueOptimizer_optimize(queue) { + var fnArray = queue.fnArray, argsArray = queue.argsArray; + var context = { + iCurr: 0, + fnArray: fnArray, + argsArray: argsArray + }; + var state; + var i = 0, ii = fnArray.length; + while (i < ii) { + state = (state || InitialState)[fnArray[i]]; + if (typeof state === 'function') { // we found some handler + context.iCurr = i; + // state() returns the index of the first non-matching op (if we + // didn't match) or the first op past the modified ops (if we did + // match and replace). + i = state(context); + state = undefined; // reset the state machine + ii = context.fnArray.length; + } else { + i++; + } + } + } + }; + return QueueOptimizer; +})(); + +exports.OperatorList = OperatorList; +exports.PartialEvaluator = PartialEvaluator; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreAnnotation = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreStream, root.pdfjsCoreColorSpace, + root.pdfjsCoreObj, root.pdfjsCoreEvaluator); + } +}(this, function (exports, sharedUtil, corePrimitives, coreStream, + coreColorSpace, coreObj, coreEvaluator) { + +var AnnotationBorderStyleType = sharedUtil.AnnotationBorderStyleType; +var AnnotationFlag = sharedUtil.AnnotationFlag; +var AnnotationType = sharedUtil.AnnotationType; +var OPS = sharedUtil.OPS; +var Util = sharedUtil.Util; +var isArray = sharedUtil.isArray; +var isInt = sharedUtil.isInt; +var isValidUrl = sharedUtil.isValidUrl; +var stringToBytes = sharedUtil.stringToBytes; +var stringToPDFString = sharedUtil.stringToPDFString; +var stringToUTF8String = sharedUtil.stringToUTF8String; +var warn = sharedUtil.warn; +var Dict = corePrimitives.Dict; +var isDict = corePrimitives.isDict; +var isName = corePrimitives.isName; +var Stream = coreStream.Stream; +var ColorSpace = coreColorSpace.ColorSpace; +var ObjectLoader = coreObj.ObjectLoader; +var OperatorList = coreEvaluator.OperatorList; + +var DEFAULT_ICON_SIZE = 22; // px + +/** + * @class + * @alias AnnotationFactory + */ +function AnnotationFactory() {} +AnnotationFactory.prototype = /** @lends AnnotationFactory.prototype */ { + /** + * @param {XRef} xref + * @param {Object} ref + * @returns {Annotation} + */ + create: function AnnotationFactory_create(xref, ref) { + var dict = xref.fetchIfRef(ref); + if (!isDict(dict)) { + return; + } + + // Determine the annotation's subtype. + var subtype = dict.get('Subtype'); + subtype = isName(subtype) ? subtype.name : ''; + + // Return the right annotation object based on the subtype and field type. + var parameters = { + dict: dict, + ref: ref + }; + + switch (subtype) { + case 'Link': + return new LinkAnnotation(parameters); + + case 'Text': + return new TextAnnotation(parameters); + + case 'Widget': + var fieldType = Util.getInheritableProperty(dict, 'FT'); + if (isName(fieldType) && fieldType.name === 'Tx') { + return new TextWidgetAnnotation(parameters); + } + return new WidgetAnnotation(parameters); + + default: + warn('Unimplemented annotation type "' + subtype + '", ' + + 'falling back to base annotation'); + return new Annotation(parameters); + } + } +}; + +var Annotation = (function AnnotationClosure() { + // 12.5.5: Algorithm: Appearance streams + function getTransformMatrix(rect, bbox, matrix) { + var bounds = Util.getAxialAlignedBoundingBox(bbox, matrix); + var minX = bounds[0]; + var minY = bounds[1]; + var maxX = bounds[2]; + var maxY = bounds[3]; + + if (minX === maxX || minY === maxY) { + // From real-life file, bbox was [0, 0, 0, 0]. In this case, + // just apply the transform for rect + return [1, 0, 0, 1, rect[0], rect[1]]; + } + + var xRatio = (rect[2] - rect[0]) / (maxX - minX); + var yRatio = (rect[3] - rect[1]) / (maxY - minY); + return [ + xRatio, + 0, + 0, + yRatio, + rect[0] - minX * xRatio, + rect[1] - minY * yRatio + ]; + } + + function getDefaultAppearance(dict) { + var appearanceState = dict.get('AP'); + if (!isDict(appearanceState)) { + return; + } + + var appearance; + var appearances = appearanceState.get('N'); + if (isDict(appearances)) { + var as = dict.get('AS'); + if (as && appearances.has(as.name)) { + appearance = appearances.get(as.name); + } + } else { + appearance = appearances; + } + return appearance; + } + + function Annotation(params) { + var dict = params.dict; + + this.setFlags(dict.get('F')); + this.setRectangle(dict.get('Rect')); + this.setColor(dict.get('C')); + this.setBorderStyle(dict); + this.appearance = getDefaultAppearance(dict); + + // Expose public properties using a data object. + this.data = {}; + this.data.id = params.ref.num; + this.data.subtype = dict.get('Subtype').name; + this.data.annotationFlags = this.flags; + this.data.rect = this.rectangle; + this.data.color = this.color; + this.data.borderStyle = this.borderStyle; + this.data.hasAppearance = !!this.appearance; + } + + Annotation.prototype = { + /** + * @return {boolean} + */ + get viewable() { + if (this.flags) { + return !this.hasFlag(AnnotationFlag.INVISIBLE) && + !this.hasFlag(AnnotationFlag.HIDDEN) && + !this.hasFlag(AnnotationFlag.NOVIEW); + } + return true; + }, + + /** + * @return {boolean} + */ + get printable() { + if (this.flags) { + return this.hasFlag(AnnotationFlag.PRINT) && + !this.hasFlag(AnnotationFlag.INVISIBLE) && + !this.hasFlag(AnnotationFlag.HIDDEN); + } + return false; + }, + + /** + * Set the flags. + * + * @public + * @memberof Annotation + * @param {number} flags - Unsigned 32-bit integer specifying annotation + * characteristics + * @see {@link shared/util.js} + */ + setFlags: function Annotation_setFlags(flags) { + if (isInt(flags)) { + this.flags = flags; + } else { + this.flags = 0; + } + }, + + /** + * Check if a provided flag is set. + * + * @public + * @memberof Annotation + * @param {number} flag - Hexadecimal representation for an annotation + * characteristic + * @return {boolean} + * @see {@link shared/util.js} + */ + hasFlag: function Annotation_hasFlag(flag) { + if (this.flags) { + return (this.flags & flag) > 0; + } + return false; + }, + + /** + * Set the rectangle. + * + * @public + * @memberof Annotation + * @param {Array} rectangle - The rectangle array with exactly four entries + */ + setRectangle: function Annotation_setRectangle(rectangle) { + if (isArray(rectangle) && rectangle.length === 4) { + this.rectangle = Util.normalizeRect(rectangle); + } else { + this.rectangle = [0, 0, 0, 0]; + } + }, + + /** + * Set the color and take care of color space conversion. + * + * @public + * @memberof Annotation + * @param {Array} color - The color array containing either 0 + * (transparent), 1 (grayscale), 3 (RGB) or + * 4 (CMYK) elements + */ + setColor: function Annotation_setColor(color) { + var rgbColor = new Uint8Array(3); // Black in RGB color space (default) + if (!isArray(color)) { + this.color = rgbColor; + return; + } + + switch (color.length) { + case 0: // Transparent, which we indicate with a null value + this.color = null; + break; + + case 1: // Convert grayscale to RGB + ColorSpace.singletons.gray.getRgbItem(color, 0, rgbColor, 0); + this.color = rgbColor; + break; + + case 3: // Convert RGB percentages to RGB + ColorSpace.singletons.rgb.getRgbItem(color, 0, rgbColor, 0); + this.color = rgbColor; + break; + + case 4: // Convert CMYK to RGB + ColorSpace.singletons.cmyk.getRgbItem(color, 0, rgbColor, 0); + this.color = rgbColor; + break; + + default: + this.color = rgbColor; + break; + } + }, + + /** + * Set the border style (as AnnotationBorderStyle object). + * + * @public + * @memberof Annotation + * @param {Dict} borderStyle - The border style dictionary + */ + setBorderStyle: function Annotation_setBorderStyle(borderStyle) { + this.borderStyle = new AnnotationBorderStyle(); + if (!isDict(borderStyle)) { + return; + } + if (borderStyle.has('BS')) { + var dict = borderStyle.get('BS'); + var dictType; + + if (!dict.has('Type') || (isName(dictType = dict.get('Type')) && + dictType.name === 'Border')) { + this.borderStyle.setWidth(dict.get('W')); + this.borderStyle.setStyle(dict.get('S')); + this.borderStyle.setDashArray(dict.get('D')); + } + } else if (borderStyle.has('Border')) { + var array = borderStyle.get('Border'); + if (isArray(array) && array.length >= 3) { + this.borderStyle.setHorizontalCornerRadius(array[0]); + this.borderStyle.setVerticalCornerRadius(array[1]); + this.borderStyle.setWidth(array[2]); + + if (array.length === 4) { // Dash array available + this.borderStyle.setDashArray(array[3]); + } + } + } else { + // There are no border entries in the dictionary. According to the + // specification, we should draw a solid border of width 1 in that + // case, but Adobe Reader did not implement that part of the + // specification and instead draws no border at all, so we do the same. + // See also https://github.com/mozilla/pdf.js/issues/6179. + this.borderStyle.setWidth(0); + } + }, + + loadResources: function Annotation_loadResources(keys) { + return new Promise(function (resolve, reject) { + this.appearance.dict.getAsync('Resources').then(function (resources) { + if (!resources) { + resolve(); + return; + } + var objectLoader = new ObjectLoader(resources.map, + keys, + resources.xref); + objectLoader.load().then(function() { + resolve(resources); + }, reject); + }, reject); + }.bind(this)); + }, + + getOperatorList: function Annotation_getOperatorList(evaluator, task) { + if (!this.appearance) { + return Promise.resolve(new OperatorList()); + } + + var data = this.data; + var appearanceDict = this.appearance.dict; + var resourcesPromise = this.loadResources([ + 'ExtGState', + 'ColorSpace', + 'Pattern', + 'Shading', + 'XObject', + 'Font' + // ProcSet + // Properties + ]); + var bbox = appearanceDict.get('BBox') || [0, 0, 1, 1]; + var matrix = appearanceDict.get('Matrix') || [1, 0, 0, 1, 0 ,0]; + var transform = getTransformMatrix(data.rect, bbox, matrix); + var self = this; + + return resourcesPromise.then(function(resources) { + var opList = new OperatorList(); + opList.addOp(OPS.beginAnnotation, [data.rect, transform, matrix]); + return evaluator.getOperatorList(self.appearance, task, + resources, opList). + then(function () { + opList.addOp(OPS.endAnnotation, []); + self.appearance.reset(); + return opList; + }); + }); + } + }; + + Annotation.appendToOperatorList = function Annotation_appendToOperatorList( + annotations, opList, partialEvaluator, task, intent) { + var annotationPromises = []; + for (var i = 0, n = annotations.length; i < n; ++i) { + if ((intent === 'display' && annotations[i].viewable) || + (intent === 'print' && annotations[i].printable)) { + annotationPromises.push( + annotations[i].getOperatorList(partialEvaluator, task)); + } + } + return Promise.all(annotationPromises).then(function(operatorLists) { + opList.addOp(OPS.beginAnnotations, []); + for (var i = 0, n = operatorLists.length; i < n; ++i) { + opList.addOpList(operatorLists[i]); + } + opList.addOp(OPS.endAnnotations, []); + }); + }; + + return Annotation; +})(); + +/** + * Contains all data regarding an annotation's border style. + * + * @class + */ +var AnnotationBorderStyle = (function AnnotationBorderStyleClosure() { + /** + * @constructor + * @private + */ + function AnnotationBorderStyle() { + this.width = 1; + this.style = AnnotationBorderStyleType.SOLID; + this.dashArray = [3]; + this.horizontalCornerRadius = 0; + this.verticalCornerRadius = 0; + } + + AnnotationBorderStyle.prototype = { + /** + * Set the width. + * + * @public + * @memberof AnnotationBorderStyle + * @param {integer} width - The width + */ + setWidth: function AnnotationBorderStyle_setWidth(width) { + if (width === (width | 0)) { + this.width = width; + } + }, + + /** + * Set the style. + * + * @public + * @memberof AnnotationBorderStyle + * @param {Object} style - The style object + * @see {@link shared/util.js} + */ + setStyle: function AnnotationBorderStyle_setStyle(style) { + if (!style) { + return; + } + switch (style.name) { + case 'S': + this.style = AnnotationBorderStyleType.SOLID; + break; + + case 'D': + this.style = AnnotationBorderStyleType.DASHED; + break; + + case 'B': + this.style = AnnotationBorderStyleType.BEVELED; + break; + + case 'I': + this.style = AnnotationBorderStyleType.INSET; + break; + + case 'U': + this.style = AnnotationBorderStyleType.UNDERLINE; + break; + + default: + break; + } + }, + + /** + * Set the dash array. + * + * @public + * @memberof AnnotationBorderStyle + * @param {Array} dashArray - The dash array with at least one element + */ + setDashArray: function AnnotationBorderStyle_setDashArray(dashArray) { + // We validate the dash array, but we do not use it because CSS does not + // allow us to change spacing of dashes. For more information, visit + // http://www.w3.org/TR/css3-background/#the-border-style. + if (isArray(dashArray) && dashArray.length > 0) { + // According to the PDF specification: the elements in a dashArray + // shall be numbers that are nonnegative and not all equal to zero. + var isValid = true; + var allZeros = true; + for (var i = 0, len = dashArray.length; i < len; i++) { + var element = dashArray[i]; + var validNumber = (+element >= 0); + if (!validNumber) { + isValid = false; + break; + } else if (element > 0) { + allZeros = false; + } + } + if (isValid && !allZeros) { + this.dashArray = dashArray; + } else { + this.width = 0; // Adobe behavior when the array is invalid. + } + } else if (dashArray) { + this.width = 0; // Adobe behavior when the array is invalid. + } + }, + + /** + * Set the horizontal corner radius (from a Border dictionary). + * + * @public + * @memberof AnnotationBorderStyle + * @param {integer} radius - The horizontal corner radius + */ + setHorizontalCornerRadius: + function AnnotationBorderStyle_setHorizontalCornerRadius(radius) { + if (radius === (radius | 0)) { + this.horizontalCornerRadius = radius; + } + }, + + /** + * Set the vertical corner radius (from a Border dictionary). + * + * @public + * @memberof AnnotationBorderStyle + * @param {integer} radius - The vertical corner radius + */ + setVerticalCornerRadius: + function AnnotationBorderStyle_setVerticalCornerRadius(radius) { + if (radius === (radius | 0)) { + this.verticalCornerRadius = radius; + } + } + }; + + return AnnotationBorderStyle; +})(); + +var WidgetAnnotation = (function WidgetAnnotationClosure() { + function WidgetAnnotation(params) { + Annotation.call(this, params); + + var dict = params.dict; + var data = this.data; + + data.annotationType = AnnotationType.WIDGET; + data.fieldValue = stringToPDFString( + Util.getInheritableProperty(dict, 'V') || ''); + data.alternativeText = stringToPDFString(dict.get('TU') || ''); + data.defaultAppearance = Util.getInheritableProperty(dict, 'DA') || ''; + var fieldType = Util.getInheritableProperty(dict, 'FT'); + data.fieldType = isName(fieldType) ? fieldType.name : ''; + data.fieldFlags = Util.getInheritableProperty(dict, 'Ff') || 0; + this.fieldResources = Util.getInheritableProperty(dict, 'DR') || Dict.empty; + + // Hide unsupported Widget signatures. + if (data.fieldType === 'Sig') { + warn('unimplemented annotation type: Widget signature'); + this.setFlags(AnnotationFlag.HIDDEN); + } + + // Building the full field name by collecting the field and + // its ancestors 'T' data and joining them using '.'. + var fieldName = []; + var namedItem = dict; + var ref = params.ref; + while (namedItem) { + var parent = namedItem.get('Parent'); + var parentRef = namedItem.getRaw('Parent'); + var name = namedItem.get('T'); + if (name) { + fieldName.unshift(stringToPDFString(name)); + } else if (parent && ref) { + // The field name is absent, that means more than one field + // with the same name may exist. Replacing the empty name + // with the '`' plus index in the parent's 'Kids' array. + // This is not in the PDF spec but necessary to id the + // the input controls. + var kids = parent.get('Kids'); + var j, jj; + for (j = 0, jj = kids.length; j < jj; j++) { + var kidRef = kids[j]; + if (kidRef.num === ref.num && kidRef.gen === ref.gen) { break; } - this.eatBits(1); - } - this.eatBits(12); - if (this.encoding > 0) { - this.eatBits(1); - this.nextLine2D = !(code1 & 1); } + fieldName.unshift('`' + j); } - - if (codingLine[0] > 0) { - this.outputBits = codingLine[this.codingPos = 0]; - } else { - this.outputBits = codingLine[this.codingPos = 1]; - } - this.row++; + namedItem = parent; + ref = parentRef; } + data.fullName = fieldName.join('.'); + } - var c; - if (this.outputBits >= 8) { - c = (this.codingPos & 1) ? 0 : 0xFF; - this.outputBits -= 8; - if (this.outputBits === 0 && codingLine[this.codingPos] < columns) { - this.codingPos++; - this.outputBits = (codingLine[this.codingPos] - - codingLine[this.codingPos - 1]); - } - } else { - bits = 8; - c = 0; - do { - if (this.outputBits > bits) { - c <<= bits; - if (!(this.codingPos & 1)) { - c |= 0xFF >> (8 - bits); - } - this.outputBits -= bits; - bits = 0; - } else { - c <<= this.outputBits; - if (!(this.codingPos & 1)) { - c |= 0xFF >> (8 - this.outputBits); - } - bits -= this.outputBits; - this.outputBits = 0; - if (codingLine[this.codingPos] < columns) { - this.codingPos++; - this.outputBits = (codingLine[this.codingPos] - - codingLine[this.codingPos - 1]); - } else if (bits > 0) { - c <<= bits; - bits = 0; - } - } - } while (bits); - } - if (this.black) { - c ^= 0xFF; - } - return c; - }; + Util.inherit(WidgetAnnotation, Annotation, {}); - // This functions returns the code found from the table. - // The start and end parameters set the boundaries for searching the table. - // The limit parameter is optional. Function returns an array with three - // values. The first array element indicates whether a valid code is being - // returned. The second array element is the actual code. The third array - // element indicates whether EOF was reached. - CCITTFaxStream.prototype.findTableCode = - function ccittFaxStreamFindTableCode(start, end, table, limit) { - - var limitValue = limit || 0; - for (var i = start; i <= end; ++i) { - var code = this.lookBits(i); - if (code === EOF) { - return [true, 1, false]; - } - if (i < end) { - code <<= end - i; - } - if (!limitValue || code >= limitValue) { - var p = table[code - limitValue]; - if (p[0] === i) { - this.eatBits(i); - return [true, p[1], true]; - } - } - } - return [false, 0, false]; - }; - - CCITTFaxStream.prototype.getTwoDimCode = - function ccittFaxStreamGetTwoDimCode() { - - var code = 0; - var p; - if (this.eoblock) { - code = this.lookBits(7); - p = twoDimTable[code]; - if (p && p[0] > 0) { - this.eatBits(p[0]); - return p[1]; - } - } else { - var result = this.findTableCode(1, 7, twoDimTable); - if (result[0] && result[2]) { - return result[1]; - } - } - info('Bad two dim code'); - return EOF; - }; - - CCITTFaxStream.prototype.getWhiteCode = - function ccittFaxStreamGetWhiteCode() { - - var code = 0; - var p; - if (this.eoblock) { - code = this.lookBits(12); - if (code === EOF) { - return 1; - } - - if ((code >> 5) === 0) { - p = whiteTable1[code]; - } else { - p = whiteTable2[code >> 3]; - } - - if (p[0] > 0) { - this.eatBits(p[0]); - return p[1]; - } - } else { - var result = this.findTableCode(1, 9, whiteTable2); - if (result[0]) { - return result[1]; - } - - result = this.findTableCode(11, 12, whiteTable1); - if (result[0]) { - return result[1]; - } - } - info('bad white code'); - this.eatBits(1); - return 1; - }; - - CCITTFaxStream.prototype.getBlackCode = - function ccittFaxStreamGetBlackCode() { - - var code, p; - if (this.eoblock) { - code = this.lookBits(13); - if (code === EOF) { - return 1; - } - if ((code >> 7) === 0) { - p = blackTable1[code]; - } else if ((code >> 9) === 0 && (code >> 7) !== 0) { - p = blackTable2[(code >> 1) - 64]; - } else { - p = blackTable3[code >> 7]; - } - - if (p[0] > 0) { - this.eatBits(p[0]); - return p[1]; - } - } else { - var result = this.findTableCode(2, 6, blackTable3); - if (result[0]) { - return result[1]; - } - - result = this.findTableCode(7, 12, blackTable2, 64); - if (result[0]) { - return result[1]; - } - - result = this.findTableCode(10, 13, blackTable1); - if (result[0]) { - return result[1]; - } - } - info('bad black code'); - this.eatBits(1); - return 1; - }; - - CCITTFaxStream.prototype.lookBits = function CCITTFaxStream_lookBits(n) { - var c; - while (this.inputBits < n) { - if ((c = this.str.getByte()) === -1) { - if (this.inputBits === 0) { - return EOF; - } - return ((this.inputBuf << (n - this.inputBits)) & - (0xFFFF >> (16 - n))); - } - this.inputBuf = (this.inputBuf << 8) + c; - this.inputBits += 8; - } - return (this.inputBuf >> (this.inputBits - n)) & (0xFFFF >> (16 - n)); - }; - - CCITTFaxStream.prototype.eatBits = function CCITTFaxStream_eatBits(n) { - if ((this.inputBits -= n) < 0) { - this.inputBits = 0; - } - }; - - return CCITTFaxStream; + return WidgetAnnotation; })(); -var LZWStream = (function LZWStreamClosure() { - function LZWStream(str, maybeLength, earlyChange) { - this.str = str; - this.dict = str.dict; - this.cachedData = 0; - this.bitsCached = 0; +var TextWidgetAnnotation = (function TextWidgetAnnotationClosure() { + function TextWidgetAnnotation(params) { + WidgetAnnotation.call(this, params); - var maxLzwDictionarySize = 4096; - var lzwState = { - earlyChange: earlyChange, - codeLength: 9, - nextCode: 258, - dictionaryValues: new Uint8Array(maxLzwDictionarySize), - dictionaryLengths: new Uint16Array(maxLzwDictionarySize), - dictionaryPrevCodes: new Uint16Array(maxLzwDictionarySize), - currentSequence: new Uint8Array(maxLzwDictionarySize), - currentSequenceLength: 0 + this.data.textAlignment = Util.getInheritableProperty(params.dict, 'Q'); + this.data.hasHtml = !this.data.hasAppearance && !!this.data.fieldValue; + } + + Util.inherit(TextWidgetAnnotation, WidgetAnnotation, { + getOperatorList: function TextWidgetAnnotation_getOperatorList(evaluator, + task) { + if (this.appearance) { + return Annotation.prototype.getOperatorList.call(this, evaluator, task); + } + + var opList = new OperatorList(); + var data = this.data; + + // Even if there is an appearance stream, ignore it. This is the + // behaviour used by Adobe Reader. + if (!data.defaultAppearance) { + return Promise.resolve(opList); + } + + var stream = new Stream(stringToBytes(data.defaultAppearance)); + return evaluator.getOperatorList(stream, task, + this.fieldResources, opList). + then(function () { + return opList; + }); + } + }); + + return TextWidgetAnnotation; +})(); + +var TextAnnotation = (function TextAnnotationClosure() { + function TextAnnotation(params) { + Annotation.call(this, params); + + var dict = params.dict; + var data = this.data; + + var content = dict.get('Contents'); + var title = dict.get('T'); + data.annotationType = AnnotationType.TEXT; + data.content = stringToPDFString(content || ''); + data.title = stringToPDFString(title || ''); + data.hasHtml = true; + + if (data.hasAppearance) { + data.name = 'NoIcon'; + } else { + data.rect[1] = data.rect[3] - DEFAULT_ICON_SIZE; + data.rect[2] = data.rect[0] + DEFAULT_ICON_SIZE; + data.name = dict.has('Name') ? dict.get('Name').name : 'Note'; + } + + if (dict.has('C')) { + data.hasBgColor = true; + } + } + + Util.inherit(TextAnnotation, Annotation, {}); + + return TextAnnotation; +})(); + +var LinkAnnotation = (function LinkAnnotationClosure() { + function LinkAnnotation(params) { + Annotation.call(this, params); + + var dict = params.dict; + var data = this.data; + data.annotationType = AnnotationType.LINK; + data.hasHtml = true; + + var action = dict.get('A'); + if (action && isDict(action)) { + var linkType = action.get('S').name; + if (linkType === 'URI') { + var url = action.get('URI'); + if (isName(url)) { + // Some bad PDFs do not put parentheses around relative URLs. + url = '/' + url.name; + } else if (url) { + url = addDefaultProtocolToUrl(url); + } + // TODO: pdf spec mentions urls can be relative to a Base + // entry in the dictionary. + if (!isValidUrl(url, false)) { + url = ''; + } + // According to ISO 32000-1:2008, section 12.6.4.7, + // URI should to be encoded in 7-bit ASCII. + // Some bad PDFs may have URIs in UTF-8 encoding, see Bugzilla 1122280. + try { + data.url = stringToUTF8String(url); + } catch (e) { + // Fall back to a simple copy. + data.url = url; + } + } else if (linkType === 'GoTo') { + data.dest = action.get('D'); + } else if (linkType === 'GoToR') { + var urlDict = action.get('F'); + if (isDict(urlDict)) { + // We assume that the 'url' is a Filspec dictionary + // and fetch the url without checking any further + url = urlDict.get('F') || ''; + } + + // TODO: pdf reference says that GoToR + // can also have 'NewWindow' attribute + if (!isValidUrl(url, false)) { + url = ''; + } + data.url = url; + data.dest = action.get('D'); + } else if (linkType === 'Named') { + data.action = action.get('N').name; + } else { + warn('unrecognized link type: ' + linkType); + } + } else if (dict.has('Dest')) { + // simple destination link + var dest = dict.get('Dest'); + data.dest = isName(dest) ? dest.name : dest; + } + } + + // Lets URLs beginning with 'www.' default to using the 'http://' protocol. + function addDefaultProtocolToUrl(url) { + if (url && url.indexOf('www.') === 0) { + return ('http://' + url); + } + return url; + } + + Util.inherit(LinkAnnotation, Annotation, {}); + + return LinkAnnotation; +})(); + +exports.Annotation = Annotation; +exports.AnnotationBorderStyle = AnnotationBorderStyle; +exports.AnnotationFactory = AnnotationFactory; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreDocument = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCoreStream, + root.pdfjsCoreObj, root.pdfjsCoreParser, root.pdfjsCoreCrypto, + root.pdfjsCoreEvaluator, root.pdfjsCoreAnnotation); + } +}(this, function (exports, sharedUtil, corePrimitives, coreStream, coreObj, + coreParser, coreCrypto, coreEvaluator, coreAnnotation) { + +var MissingDataException = sharedUtil.MissingDataException; +var Util = sharedUtil.Util; +var assert = sharedUtil.assert; +var error = sharedUtil.error; +var info = sharedUtil.info; +var isArray = sharedUtil.isArray; +var isArrayBuffer = sharedUtil.isArrayBuffer; +var isString = sharedUtil.isString; +var shadow = sharedUtil.shadow; +var stringToBytes = sharedUtil.stringToBytes; +var stringToPDFString = sharedUtil.stringToPDFString; +var warn = sharedUtil.warn; +var Dict = corePrimitives.Dict; +var isDict = corePrimitives.isDict; +var isName = corePrimitives.isName; +var isStream = corePrimitives.isStream; +var NullStream = coreStream.NullStream; +var Stream = coreStream.Stream; +var StreamsSequenceStream = coreStream.StreamsSequenceStream; +var Catalog = coreObj.Catalog; +var ObjectLoader = coreObj.ObjectLoader; +var XRef = coreObj.XRef; +var Lexer = coreParser.Lexer; +var Linearization = coreParser.Linearization; +var calculateMD5 = coreCrypto.calculateMD5; +var OperatorList = coreEvaluator.OperatorList; +var PartialEvaluator = coreEvaluator.PartialEvaluator; +var Annotation = coreAnnotation.Annotation; +var AnnotationFactory = coreAnnotation.AnnotationFactory; + +var Page = (function PageClosure() { + + var LETTER_SIZE_MEDIABOX = [0, 0, 612, 792]; + + function Page(pdfManager, xref, pageIndex, pageDict, ref, fontCache) { + this.pdfManager = pdfManager; + this.pageIndex = pageIndex; + this.pageDict = pageDict; + this.xref = xref; + this.ref = ref; + this.fontCache = fontCache; + this.idCounters = { + obj: 0 }; - for (var i = 0; i < 256; ++i) { - lzwState.dictionaryValues[i] = i; - lzwState.dictionaryLengths[i] = 1; - } - this.lzwState = lzwState; - - DecodeStream.call(this, maybeLength); + this.resourcesPromise = null; } - LZWStream.prototype = Object.create(DecodeStream.prototype); + Page.prototype = { + getPageProp: function Page_getPageProp(key) { + return this.pageDict.get(key); + }, - LZWStream.prototype.readBits = function LZWStream_readBits(n) { - var bitsCached = this.bitsCached; - var cachedData = this.cachedData; - while (bitsCached < n) { - var c = this.str.getByte(); - if (c === -1) { - this.eof = true; - return null; - } - cachedData = (cachedData << 8) | c; - bitsCached += 8; - } - this.bitsCached = (bitsCached -= n); - this.cachedData = cachedData; - this.lastCode = null; - return (cachedData >>> bitsCached) & ((1 << n) - 1); - }; - - LZWStream.prototype.readBlock = function LZWStream_readBlock() { - var blockSize = 512; - var estimatedDecodedSize = blockSize * 2, decodedSizeDelta = blockSize; - var i, j, q; - - var lzwState = this.lzwState; - if (!lzwState) { - return; // eof was found - } - - var earlyChange = lzwState.earlyChange; - var nextCode = lzwState.nextCode; - var dictionaryValues = lzwState.dictionaryValues; - var dictionaryLengths = lzwState.dictionaryLengths; - var dictionaryPrevCodes = lzwState.dictionaryPrevCodes; - var codeLength = lzwState.codeLength; - var prevCode = lzwState.prevCode; - var currentSequence = lzwState.currentSequence; - var currentSequenceLength = lzwState.currentSequenceLength; - - var decodedLength = 0; - var currentBufferLength = this.bufferLength; - var buffer = this.ensureBuffer(this.bufferLength + estimatedDecodedSize); - - for (i = 0; i < blockSize; i++) { - var code = this.readBits(codeLength); - var hasPrev = currentSequenceLength > 0; - if (code < 256) { - currentSequence[0] = code; - currentSequenceLength = 1; - } else if (code >= 258) { - if (code < nextCode) { - currentSequenceLength = dictionaryLengths[code]; - for (j = currentSequenceLength - 1, q = code; j >= 0; j--) { - currentSequence[j] = dictionaryValues[q]; - q = dictionaryPrevCodes[q]; + getInheritedPageProp: function Page_getInheritedPageProp(key) { + var dict = this.pageDict, valueArray = null, loopCount = 0; + var MAX_LOOP_COUNT = 100; + // Always walk up the entire parent chain, to be able to find + // e.g. \Resources placed on multiple levels of the tree. + while (dict) { + var value = dict.get(key); + if (value) { + if (!valueArray) { + valueArray = []; } - } else { - currentSequence[currentSequenceLength++] = currentSequence[0]; + valueArray.push(value); } - } else if (code === 256) { - codeLength = 9; - nextCode = 258; - currentSequenceLength = 0; - continue; + if (++loopCount > MAX_LOOP_COUNT) { + warn('Page_getInheritedPageProp: maximum loop count exceeded.'); + break; + } + dict = dict.get('Parent'); + } + if (!valueArray) { + return Dict.empty; + } + if (valueArray.length === 1 || !isDict(valueArray[0]) || + loopCount > MAX_LOOP_COUNT) { + return valueArray[0]; + } + return Dict.merge(this.xref, valueArray); + }, + + get content() { + return this.getPageProp('Contents'); + }, + + get resources() { + // For robustness: The spec states that a \Resources entry has to be + // present, but can be empty. Some document omit it still, in this case + // we return an empty dictionary. + return shadow(this, 'resources', this.getInheritedPageProp('Resources')); + }, + + get mediaBox() { + var obj = this.getInheritedPageProp('MediaBox'); + // Reset invalid media box to letter size. + if (!isArray(obj) || obj.length !== 4) { + obj = LETTER_SIZE_MEDIABOX; + } + return shadow(this, 'mediaBox', obj); + }, + + get view() { + var mediaBox = this.mediaBox; + var cropBox = this.getInheritedPageProp('CropBox'); + if (!isArray(cropBox) || cropBox.length !== 4) { + return shadow(this, 'view', mediaBox); + } + + // From the spec, 6th ed., p.963: + // "The crop, bleed, trim, and art boxes should not ordinarily + // extend beyond the boundaries of the media box. If they do, they are + // effectively reduced to their intersection with the media box." + cropBox = Util.intersect(cropBox, mediaBox); + if (!cropBox) { + return shadow(this, 'view', mediaBox); + } + return shadow(this, 'view', cropBox); + }, + + get rotate() { + var rotate = this.getInheritedPageProp('Rotate') || 0; + // Normalize rotation so it's a multiple of 90 and between 0 and 270 + if (rotate % 90 !== 0) { + rotate = 0; + } else if (rotate >= 360) { + rotate = rotate % 360; + } else if (rotate < 0) { + // The spec doesn't cover negatives, assume its counterclockwise + // rotation. The following is the other implementation of modulo. + rotate = ((rotate % 360) + 360) % 360; + } + return shadow(this, 'rotate', rotate); + }, + + getContentStream: function Page_getContentStream() { + var content = this.content; + var stream; + if (isArray(content)) { + // fetching items + var xref = this.xref; + var i, n = content.length; + var streams = []; + for (i = 0; i < n; ++i) { + streams.push(xref.fetchIfRef(content[i])); + } + stream = new StreamsSequenceStream(streams); + } else if (isStream(content)) { + stream = content; } else { - this.eof = true; - delete this.lzwState; - break; + // replacing non-existent page content with empty one + stream = new NullStream(); } + return stream; + }, - if (hasPrev) { - dictionaryPrevCodes[nextCode] = prevCode; - dictionaryLengths[nextCode] = dictionaryLengths[prevCode] + 1; - dictionaryValues[nextCode] = currentSequence[0]; - nextCode++; - codeLength = (nextCode + earlyChange) & (nextCode + earlyChange - 1) ? - codeLength : Math.min(Math.log(nextCode + earlyChange) / - 0.6931471805599453 + 1, 12) | 0; + loadResources: function Page_loadResources(keys) { + if (!this.resourcesPromise) { + // TODO: add async getInheritedPageProp and remove this. + this.resourcesPromise = this.pdfManager.ensure(this, 'resources'); } - prevCode = code; + return this.resourcesPromise.then(function resourceSuccess() { + var objectLoader = new ObjectLoader(this.resources.map, + keys, + this.xref); + return objectLoader.load(); + }.bind(this)); + }, - decodedLength += currentSequenceLength; - if (estimatedDecodedSize < decodedLength) { - do { - estimatedDecodedSize += decodedSizeDelta; - } while (estimatedDecodedSize < decodedLength); - buffer = this.ensureBuffer(this.bufferLength + estimatedDecodedSize); + getOperatorList: function Page_getOperatorList(handler, task, intent) { + var self = this; + + var pdfManager = this.pdfManager; + var contentStreamPromise = pdfManager.ensure(this, 'getContentStream', + []); + var resourcesPromise = this.loadResources([ + 'ExtGState', + 'ColorSpace', + 'Pattern', + 'Shading', + 'XObject', + 'Font' + // ProcSet + // Properties + ]); + + var partialEvaluator = new PartialEvaluator(pdfManager, this.xref, + handler, this.pageIndex, + 'p' + this.pageIndex + '_', + this.idCounters, + this.fontCache); + + var dataPromises = Promise.all([contentStreamPromise, resourcesPromise]); + var pageListPromise = dataPromises.then(function(data) { + var contentStream = data[0]; + var opList = new OperatorList(intent, handler, self.pageIndex); + + handler.send('StartRenderPage', { + transparency: partialEvaluator.hasBlendModes(self.resources), + pageIndex: self.pageIndex, + intent: intent + }); + return partialEvaluator.getOperatorList(contentStream, task, + self.resources, opList).then(function () { + return opList; + }); + }); + + var annotationsPromise = pdfManager.ensure(this, 'annotations'); + return Promise.all([pageListPromise, annotationsPromise]).then( + function(datas) { + var pageOpList = datas[0]; + var annotations = datas[1]; + + if (annotations.length === 0) { + pageOpList.flush(true); + return pageOpList; + } + + var annotationsReadyPromise = Annotation.appendToOperatorList( + annotations, pageOpList, partialEvaluator, task, intent); + return annotationsReadyPromise.then(function () { + pageOpList.flush(true); + return pageOpList; + }); + }); + }, + + extractTextContent: function Page_extractTextContent(task, + normalizeWhitespace) { + var handler = { + on: function nullHandlerOn() {}, + send: function nullHandlerSend() {} + }; + + var self = this; + + var pdfManager = this.pdfManager; + var contentStreamPromise = pdfManager.ensure(this, 'getContentStream', + []); + + var resourcesPromise = this.loadResources([ + 'ExtGState', + 'XObject', + 'Font' + ]); + + var dataPromises = Promise.all([contentStreamPromise, + resourcesPromise]); + return dataPromises.then(function(data) { + var contentStream = data[0]; + var partialEvaluator = new PartialEvaluator(pdfManager, self.xref, + handler, self.pageIndex, + 'p' + self.pageIndex + '_', + self.idCounters, + self.fontCache); + + return partialEvaluator.getTextContent(contentStream, + task, + self.resources, + /* stateManager = */ null, + normalizeWhitespace); + }); + }, + + getAnnotationsData: function Page_getAnnotationsData(intent) { + var annotations = this.annotations; + var annotationsData = []; + for (var i = 0, n = annotations.length; i < n; ++i) { + if (intent) { + if (!(intent === 'display' && annotations[i].viewable) && + !(intent === 'print' && annotations[i].printable)) { + continue; + } + } + annotationsData.push(annotations[i].data); } - for (j = 0; j < currentSequenceLength; j++) { - buffer[currentBufferLength++] = currentSequence[j]; + return annotationsData; + }, + + get annotations() { + var annotations = []; + var annotationRefs = this.getInheritedPageProp('Annots') || []; + var annotationFactory = new AnnotationFactory(); + for (var i = 0, n = annotationRefs.length; i < n; ++i) { + var annotationRef = annotationRefs[i]; + var annotation = annotationFactory.create(this.xref, annotationRef); + if (annotation) { + annotations.push(annotation); + } } + return shadow(this, 'annotations', annotations); } - lzwState.nextCode = nextCode; - lzwState.codeLength = codeLength; - lzwState.prevCode = prevCode; - lzwState.currentSequenceLength = currentSequenceLength; - - this.bufferLength = currentBufferLength; }; - return LZWStream; + return Page; })(); -var NullStream = (function NullStreamClosure() { - function NullStream() { - Stream.call(this, new Uint8Array(0)); +/** + * The `PDFDocument` holds all the data of the PDF file. Compared to the + * `PDFDoc`, this one doesn't have any job management code. + * Right now there exists one PDFDocument on the main thread + one object + * for each worker. If there is no worker support enabled, there are two + * `PDFDocument` objects on the main thread created. + */ +var PDFDocument = (function PDFDocumentClosure() { + var FINGERPRINT_FIRST_BYTES = 1024; + var EMPTY_FINGERPRINT = '\x00\x00\x00\x00\x00\x00\x00' + + '\x00\x00\x00\x00\x00\x00\x00\x00\x00'; + + function PDFDocument(pdfManager, arg, password) { + if (isStream(arg)) { + init.call(this, pdfManager, arg, password); + } else if (isArrayBuffer(arg)) { + init.call(this, pdfManager, new Stream(arg), password); + } else { + error('PDFDocument: Unknown argument type'); + } } - NullStream.prototype = Stream.prototype; + function init(pdfManager, stream, password) { + assert(stream.length > 0, 'stream must have data'); + this.pdfManager = pdfManager; + this.stream = stream; + var xref = new XRef(this.stream, password, pdfManager); + this.xref = xref; + } - return NullStream; + function find(stream, needle, limit, backwards) { + var pos = stream.pos; + var end = stream.end; + var strBuf = []; + if (pos + limit > end) { + limit = end - pos; + } + for (var n = 0; n < limit; ++n) { + strBuf.push(String.fromCharCode(stream.getByte())); + } + var str = strBuf.join(''); + stream.pos = pos; + var index = backwards ? str.lastIndexOf(needle) : str.indexOf(needle); + if (index === -1) { + return false; /* not found */ + } + stream.pos += index; + return true; /* found */ + } + + var DocumentInfoValidators = { + get entries() { + // Lazily build this since all the validation functions below are not + // defined until after this file loads. + return shadow(this, 'entries', { + Title: isString, + Author: isString, + Subject: isString, + Keywords: isString, + Creator: isString, + Producer: isString, + CreationDate: isString, + ModDate: isString, + Trapped: isName + }); + } + }; + + PDFDocument.prototype = { + parse: function PDFDocument_parse(recoveryMode) { + this.setup(recoveryMode); + var version = this.catalog.catDict.get('Version'); + if (isName(version)) { + this.pdfFormatVersion = version.name; + } + try { + // checking if AcroForm is present + this.acroForm = this.catalog.catDict.get('AcroForm'); + if (this.acroForm) { + this.xfa = this.acroForm.get('XFA'); + var fields = this.acroForm.get('Fields'); + if ((!fields || !isArray(fields) || fields.length === 0) && + !this.xfa) { + // no fields and no XFA -- not a form (?) + this.acroForm = null; + } + } + } catch (ex) { + info('Something wrong with AcroForm entry'); + this.acroForm = null; + } + }, + + get linearization() { + var linearization = null; + if (this.stream.length) { + try { + linearization = Linearization.create(this.stream); + } catch (err) { + if (err instanceof MissingDataException) { + throw err; + } + info(err); + } + } + // shadow the prototype getter with a data property + return shadow(this, 'linearization', linearization); + }, + get startXRef() { + var stream = this.stream; + var startXRef = 0; + var linearization = this.linearization; + if (linearization) { + // Find end of first obj. + stream.reset(); + if (find(stream, 'endobj', 1024)) { + startXRef = stream.pos + 6; + } + } else { + // Find startxref by jumping backward from the end of the file. + var step = 1024; + var found = false, pos = stream.end; + while (!found && pos > 0) { + pos -= step - 'startxref'.length; + if (pos < 0) { + pos = 0; + } + stream.pos = pos; + found = find(stream, 'startxref', step, true); + } + if (found) { + stream.skip(9); + var ch; + do { + ch = stream.getByte(); + } while (Lexer.isSpace(ch)); + var str = ''; + while (ch >= 0x20 && ch <= 0x39) { // < '9' + str += String.fromCharCode(ch); + ch = stream.getByte(); + } + startXRef = parseInt(str, 10); + if (isNaN(startXRef)) { + startXRef = 0; + } + } + } + // shadow the prototype getter with a data property + return shadow(this, 'startXRef', startXRef); + }, + get mainXRefEntriesOffset() { + var mainXRefEntriesOffset = 0; + var linearization = this.linearization; + if (linearization) { + mainXRefEntriesOffset = linearization.mainXRefEntriesOffset; + } + // shadow the prototype getter with a data property + return shadow(this, 'mainXRefEntriesOffset', mainXRefEntriesOffset); + }, + // Find the header, remove leading garbage and setup the stream + // starting from the header. + checkHeader: function PDFDocument_checkHeader() { + var stream = this.stream; + stream.reset(); + if (find(stream, '%PDF-', 1024)) { + // Found the header, trim off any garbage before it. + stream.moveStart(); + // Reading file format version + var MAX_VERSION_LENGTH = 12; + var version = '', ch; + while ((ch = stream.getByte()) > 0x20) { // SPACE + if (version.length >= MAX_VERSION_LENGTH) { + break; + } + version += String.fromCharCode(ch); + } + if (!this.pdfFormatVersion) { + // removing "%PDF-"-prefix + this.pdfFormatVersion = version.substring(5); + } + return; + } + // May not be a PDF file, continue anyway. + }, + parseStartXRef: function PDFDocument_parseStartXRef() { + var startXRef = this.startXRef; + this.xref.setStartXRef(startXRef); + }, + setup: function PDFDocument_setup(recoveryMode) { + this.xref.parse(recoveryMode); + var self = this; + var pageFactory = { + createPage: function (pageIndex, dict, ref, fontCache) { + return new Page(self.pdfManager, self.xref, pageIndex, dict, ref, + fontCache); + } + }; + this.catalog = new Catalog(this.pdfManager, this.xref, pageFactory); + }, + get numPages() { + var linearization = this.linearization; + var num = linearization ? linearization.numPages : this.catalog.numPages; + // shadow the prototype getter + return shadow(this, 'numPages', num); + }, + get documentInfo() { + var docInfo = { + PDFFormatVersion: this.pdfFormatVersion, + IsAcroFormPresent: !!this.acroForm, + IsXFAPresent: !!this.xfa + }; + var infoDict; + try { + infoDict = this.xref.trailer.get('Info'); + } catch (err) { + info('The document information dictionary is invalid.'); + } + if (infoDict) { + var validEntries = DocumentInfoValidators.entries; + // Only fill the document info with valid entries from the spec. + for (var key in validEntries) { + if (infoDict.has(key)) { + var value = infoDict.get(key); + // Make sure the value conforms to the spec. + if (validEntries[key](value)) { + docInfo[key] = (typeof value !== 'string' ? + value : stringToPDFString(value)); + } else { + info('Bad value in document info for "' + key + '"'); + } + } + } + } + return shadow(this, 'documentInfo', docInfo); + }, + get fingerprint() { + var xref = this.xref, hash, fileID = ''; + var idArray = xref.trailer.get('ID'); + + if (idArray && isArray(idArray) && idArray[0] && isString(idArray[0]) && + idArray[0] !== EMPTY_FINGERPRINT) { + hash = stringToBytes(idArray[0]); + } else { + if (this.stream.ensureRange) { + this.stream.ensureRange(0, + Math.min(FINGERPRINT_FIRST_BYTES, this.stream.end)); + } + hash = calculateMD5(this.stream.bytes.subarray(0, + FINGERPRINT_FIRST_BYTES), 0, FINGERPRINT_FIRST_BYTES); + } + + for (var i = 0, n = hash.length; i < n; i++) { + var hex = hash[i].toString(16); + fileID += hex.length === 1 ? '0' + hex : hex; + } + + return shadow(this, 'fingerprint', fileID); + }, + + getPage: function PDFDocument_getPage(pageIndex) { + return this.catalog.getPage(pageIndex); + }, + + cleanup: function PDFDocument_cleanup() { + return this.catalog.cleanup(); + } + }; + + return PDFDocument; })(); +exports.Page = Page; +exports.PDFDocument = PDFDocument; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCorePdfManager = {}), root.pdfjsSharedUtil, + root.pdfjsCoreStream, root.pdfjsCoreChunkedStream, + root.pdfjsCoreDocument); + } +}(this, function (exports, sharedUtil, coreStream, coreChunkedStream, + coreDocument) { + +var NotImplementedException = sharedUtil.NotImplementedException; +var MissingDataException = sharedUtil.MissingDataException; +var createPromiseCapability = sharedUtil.createPromiseCapability; +var Util = sharedUtil.Util; +var Stream = coreStream.Stream; +var ChunkedStreamManager = coreChunkedStream.ChunkedStreamManager; +var PDFDocument = coreDocument.PDFDocument; + +var BasePdfManager = (function BasePdfManagerClosure() { + function BasePdfManager() { + throw new Error('Cannot initialize BaseManagerManager'); + } + + BasePdfManager.prototype = { + get docId() { + return this._docId; + }, + + onLoadedStream: function BasePdfManager_onLoadedStream() { + throw new NotImplementedException(); + }, + + ensureDoc: function BasePdfManager_ensureDoc(prop, args) { + return this.ensure(this.pdfDocument, prop, args); + }, + + ensureXRef: function BasePdfManager_ensureXRef(prop, args) { + return this.ensure(this.pdfDocument.xref, prop, args); + }, + + ensureCatalog: function BasePdfManager_ensureCatalog(prop, args) { + return this.ensure(this.pdfDocument.catalog, prop, args); + }, + + getPage: function BasePdfManager_getPage(pageIndex) { + return this.pdfDocument.getPage(pageIndex); + }, + + cleanup: function BasePdfManager_cleanup() { + return this.pdfDocument.cleanup(); + }, + + ensure: function BasePdfManager_ensure(obj, prop, args) { + return new NotImplementedException(); + }, + + requestRange: function BasePdfManager_requestRange(begin, end) { + return new NotImplementedException(); + }, + + requestLoadedStream: function BasePdfManager_requestLoadedStream() { + return new NotImplementedException(); + }, + + sendProgressiveData: function BasePdfManager_sendProgressiveData(chunk) { + return new NotImplementedException(); + }, + + updatePassword: function BasePdfManager_updatePassword(password) { + this.pdfDocument.xref.password = this.password = password; + if (this._passwordChangedCapability) { + this._passwordChangedCapability.resolve(); + } + }, + + passwordChanged: function BasePdfManager_passwordChanged() { + this._passwordChangedCapability = createPromiseCapability(); + return this._passwordChangedCapability.promise; + }, + + terminate: function BasePdfManager_terminate() { + return new NotImplementedException(); + } + }; + + return BasePdfManager; +})(); + +var LocalPdfManager = (function LocalPdfManagerClosure() { + function LocalPdfManager(docId, data, password) { + this._docId = docId; + var stream = new Stream(data); + this.pdfDocument = new PDFDocument(this, stream, password); + this._loadedStreamCapability = createPromiseCapability(); + this._loadedStreamCapability.resolve(stream); + } + + Util.inherit(LocalPdfManager, BasePdfManager, { + ensure: function LocalPdfManager_ensure(obj, prop, args) { + return new Promise(function (resolve, reject) { + try { + var value = obj[prop]; + var result; + if (typeof value === 'function') { + result = value.apply(obj, args); + } else { + result = value; + } + resolve(result); + } catch (e) { + reject(e); + } + }); + }, + + requestRange: function LocalPdfManager_requestRange(begin, end) { + return Promise.resolve(); + }, + + requestLoadedStream: function LocalPdfManager_requestLoadedStream() { + return; + }, + + onLoadedStream: function LocalPdfManager_onLoadedStream() { + return this._loadedStreamCapability.promise; + }, + + terminate: function LocalPdfManager_terminate() { + return; + } + }); + + return LocalPdfManager; +})(); + +var NetworkPdfManager = (function NetworkPdfManagerClosure() { + function NetworkPdfManager(docId, args, msgHandler) { + this._docId = docId; + this.msgHandler = msgHandler; + + var params = { + msgHandler: msgHandler, + httpHeaders: args.httpHeaders, + withCredentials: args.withCredentials, + chunkedViewerLoading: args.chunkedViewerLoading, + disableAutoFetch: args.disableAutoFetch, + initialData: args.initialData + }; + this.streamManager = new ChunkedStreamManager(args.length, + args.rangeChunkSize, + args.url, params); + this.pdfDocument = new PDFDocument(this, this.streamManager.getStream(), + args.password); + } + + Util.inherit(NetworkPdfManager, BasePdfManager, { + ensure: function NetworkPdfManager_ensure(obj, prop, args) { + var pdfManager = this; + + return new Promise(function (resolve, reject) { + function ensureHelper() { + try { + var result; + var value = obj[prop]; + if (typeof value === 'function') { + result = value.apply(obj, args); + } else { + result = value; + } + resolve(result); + } catch(e) { + if (!(e instanceof MissingDataException)) { + reject(e); + return; + } + pdfManager.streamManager.requestRange(e.begin, e.end). + then(ensureHelper, reject); + } + } + + ensureHelper(); + }); + }, + + requestRange: function NetworkPdfManager_requestRange(begin, end) { + return this.streamManager.requestRange(begin, end); + }, + + requestLoadedStream: function NetworkPdfManager_requestLoadedStream() { + this.streamManager.requestAllChunks(); + }, + + sendProgressiveData: + function NetworkPdfManager_sendProgressiveData(chunk) { + this.streamManager.onReceiveData({ chunk: chunk }); + }, + + onLoadedStream: function NetworkPdfManager_onLoadedStream() { + return this.streamManager.onLoadedStream(); + }, + + terminate: function NetworkPdfManager_terminate() { + this.streamManager.abort(); + } + }); + + return NetworkPdfManager; +})(); + +exports.LocalPdfManager = LocalPdfManager; +exports.NetworkPdfManager = NetworkPdfManager; +})); + + +(function (root, factory) { + { + factory((root.pdfjsCoreWorker = {}), root.pdfjsSharedUtil, + root.pdfjsCorePrimitives, root.pdfjsCorePdfManager, + root.pdfjsSharedGlobal); + } +}(this, function (exports, sharedUtil, corePrimitives, corePdfManager, + sharedGlobal) { + +var UNSUPPORTED_FEATURES = sharedUtil.UNSUPPORTED_FEATURES; +var InvalidPDFException = sharedUtil.InvalidPDFException; +var MessageHandler = sharedUtil.MessageHandler; +var MissingPDFException = sharedUtil.MissingPDFException; +var UnexpectedResponseException = sharedUtil.UnexpectedResponseException; +var PasswordException = sharedUtil.PasswordException; +var PasswordResponses = sharedUtil.PasswordResponses; +var UnknownErrorException = sharedUtil.UnknownErrorException; +var XRefParseException = sharedUtil.XRefParseException; +var createPromiseCapability = sharedUtil.createPromiseCapability; +var error = sharedUtil.error; +var info = sharedUtil.info; +var isInt = sharedUtil.isInt; +var warn = sharedUtil.warn; +var Ref = corePrimitives.Ref; +var LocalPdfManager = corePdfManager.LocalPdfManager; +var NetworkPdfManager = corePdfManager.NetworkPdfManager; +var globalScope = sharedGlobal.globalScope; +var PDFJS = sharedGlobal.PDFJS; var WorkerTask = (function WorkerTaskClosure() { function WorkerTask(name) { @@ -34490,4997 +40350,18 @@ var workerConsole = { // Worker thread? -if (typeof window === 'undefined') { +if (typeof window === 'undefined' && typeof require === 'undefined') { if (!('console' in globalScope)) { globalScope.console = workerConsole; } - var handler = new MessageHandler('worker', 'main', this); - WorkerMessageHandler.setup(handler, this); + var handler = new MessageHandler('worker', 'main', self); + WorkerMessageHandler.setup(handler, self); } - -/* This class implements the QM Coder decoding as defined in - * JPEG 2000 Part I Final Committee Draft Version 1.0 - * Annex C.3 Arithmetic decoding procedure - * available at http://www.jpeg.org/public/fcd15444-1.pdf - * - * The arithmetic decoder is used in conjunction with context models to decode - * JPEG2000 and JBIG2 streams. - */ -var ArithmeticDecoder = (function ArithmeticDecoderClosure() { - // Table C-2 - var QeTable = [ - {qe: 0x5601, nmps: 1, nlps: 1, switchFlag: 1}, - {qe: 0x3401, nmps: 2, nlps: 6, switchFlag: 0}, - {qe: 0x1801, nmps: 3, nlps: 9, switchFlag: 0}, - {qe: 0x0AC1, nmps: 4, nlps: 12, switchFlag: 0}, - {qe: 0x0521, nmps: 5, nlps: 29, switchFlag: 0}, - {qe: 0x0221, nmps: 38, nlps: 33, switchFlag: 0}, - {qe: 0x5601, nmps: 7, nlps: 6, switchFlag: 1}, - {qe: 0x5401, nmps: 8, nlps: 14, switchFlag: 0}, - {qe: 0x4801, nmps: 9, nlps: 14, switchFlag: 0}, - {qe: 0x3801, nmps: 10, nlps: 14, switchFlag: 0}, - {qe: 0x3001, nmps: 11, nlps: 17, switchFlag: 0}, - {qe: 0x2401, nmps: 12, nlps: 18, switchFlag: 0}, - {qe: 0x1C01, nmps: 13, nlps: 20, switchFlag: 0}, - {qe: 0x1601, nmps: 29, nlps: 21, switchFlag: 0}, - {qe: 0x5601, nmps: 15, nlps: 14, switchFlag: 1}, - {qe: 0x5401, nmps: 16, nlps: 14, switchFlag: 0}, - {qe: 0x5101, nmps: 17, nlps: 15, switchFlag: 0}, - {qe: 0x4801, nmps: 18, nlps: 16, switchFlag: 0}, - {qe: 0x3801, nmps: 19, nlps: 17, switchFlag: 0}, - {qe: 0x3401, nmps: 20, nlps: 18, switchFlag: 0}, - {qe: 0x3001, nmps: 21, nlps: 19, switchFlag: 0}, - {qe: 0x2801, nmps: 22, nlps: 19, switchFlag: 0}, - {qe: 0x2401, nmps: 23, nlps: 20, switchFlag: 0}, - {qe: 0x2201, nmps: 24, nlps: 21, switchFlag: 0}, - {qe: 0x1C01, nmps: 25, nlps: 22, switchFlag: 0}, - {qe: 0x1801, nmps: 26, nlps: 23, switchFlag: 0}, - {qe: 0x1601, nmps: 27, nlps: 24, switchFlag: 0}, - {qe: 0x1401, nmps: 28, nlps: 25, switchFlag: 0}, - {qe: 0x1201, nmps: 29, nlps: 26, switchFlag: 0}, - {qe: 0x1101, nmps: 30, nlps: 27, switchFlag: 0}, - {qe: 0x0AC1, nmps: 31, nlps: 28, switchFlag: 0}, - {qe: 0x09C1, nmps: 32, nlps: 29, switchFlag: 0}, - {qe: 0x08A1, nmps: 33, nlps: 30, switchFlag: 0}, - {qe: 0x0521, nmps: 34, nlps: 31, switchFlag: 0}, - {qe: 0x0441, nmps: 35, nlps: 32, switchFlag: 0}, - {qe: 0x02A1, nmps: 36, nlps: 33, switchFlag: 0}, - {qe: 0x0221, nmps: 37, nlps: 34, switchFlag: 0}, - {qe: 0x0141, nmps: 38, nlps: 35, switchFlag: 0}, - {qe: 0x0111, nmps: 39, nlps: 36, switchFlag: 0}, - {qe: 0x0085, nmps: 40, nlps: 37, switchFlag: 0}, - {qe: 0x0049, nmps: 41, nlps: 38, switchFlag: 0}, - {qe: 0x0025, nmps: 42, nlps: 39, switchFlag: 0}, - {qe: 0x0015, nmps: 43, nlps: 40, switchFlag: 0}, - {qe: 0x0009, nmps: 44, nlps: 41, switchFlag: 0}, - {qe: 0x0005, nmps: 45, nlps: 42, switchFlag: 0}, - {qe: 0x0001, nmps: 45, nlps: 43, switchFlag: 0}, - {qe: 0x5601, nmps: 46, nlps: 46, switchFlag: 0} - ]; - - // C.3.5 Initialisation of the decoder (INITDEC) - function ArithmeticDecoder(data, start, end) { - this.data = data; - this.bp = start; - this.dataEnd = end; - - this.chigh = data[start]; - this.clow = 0; - - this.byteIn(); - - this.chigh = ((this.chigh << 7) & 0xFFFF) | ((this.clow >> 9) & 0x7F); - this.clow = (this.clow << 7) & 0xFFFF; - this.ct -= 7; - this.a = 0x8000; - } - - ArithmeticDecoder.prototype = { - // C.3.4 Compressed data input (BYTEIN) - byteIn: function ArithmeticDecoder_byteIn() { - var data = this.data; - var bp = this.bp; - if (data[bp] === 0xFF) { - var b1 = data[bp + 1]; - if (b1 > 0x8F) { - this.clow += 0xFF00; - this.ct = 8; - } else { - bp++; - this.clow += (data[bp] << 9); - this.ct = 7; - this.bp = bp; - } - } else { - bp++; - this.clow += bp < this.dataEnd ? (data[bp] << 8) : 0xFF00; - this.ct = 8; - this.bp = bp; - } - if (this.clow > 0xFFFF) { - this.chigh += (this.clow >> 16); - this.clow &= 0xFFFF; - } - }, - // C.3.2 Decoding a decision (DECODE) - readBit: function ArithmeticDecoder_readBit(contexts, pos) { - // contexts are packed into 1 byte: - // highest 7 bits carry cx.index, lowest bit carries cx.mps - var cx_index = contexts[pos] >> 1, cx_mps = contexts[pos] & 1; - var qeTableIcx = QeTable[cx_index]; - var qeIcx = qeTableIcx.qe; - var d; - var a = this.a - qeIcx; - - if (this.chigh < qeIcx) { - // exchangeLps - if (a < qeIcx) { - a = qeIcx; - d = cx_mps; - cx_index = qeTableIcx.nmps; - } else { - a = qeIcx; - d = 1 ^ cx_mps; - if (qeTableIcx.switchFlag === 1) { - cx_mps = d; - } - cx_index = qeTableIcx.nlps; - } - } else { - this.chigh -= qeIcx; - if ((a & 0x8000) !== 0) { - this.a = a; - return cx_mps; - } - // exchangeMps - if (a < qeIcx) { - d = 1 ^ cx_mps; - if (qeTableIcx.switchFlag === 1) { - cx_mps = d; - } - cx_index = qeTableIcx.nlps; - } else { - d = cx_mps; - cx_index = qeTableIcx.nmps; - } - } - // C.3.3 renormD; - do { - if (this.ct === 0) { - this.byteIn(); - } - - a <<= 1; - this.chigh = ((this.chigh << 1) & 0xFFFF) | ((this.clow >> 15) & 1); - this.clow = (this.clow << 1) & 0xFFFF; - this.ct--; - } while ((a & 0x8000) === 0); - this.a = a; - - contexts[pos] = cx_index << 1 | cx_mps; - return d; - } - }; - - return ArithmeticDecoder; -})(); - - - -var JpegImage = (function jpegImage() { - var dctZigZag = new Uint8Array([ - 0, - 1, 8, - 16, 9, 2, - 3, 10, 17, 24, - 32, 25, 18, 11, 4, - 5, 12, 19, 26, 33, 40, - 48, 41, 34, 27, 20, 13, 6, - 7, 14, 21, 28, 35, 42, 49, 56, - 57, 50, 43, 36, 29, 22, 15, - 23, 30, 37, 44, 51, 58, - 59, 52, 45, 38, 31, - 39, 46, 53, 60, - 61, 54, 47, - 55, 62, - 63 - ]); - - var dctCos1 = 4017; // cos(pi/16) - var dctSin1 = 799; // sin(pi/16) - var dctCos3 = 3406; // cos(3*pi/16) - var dctSin3 = 2276; // sin(3*pi/16) - var dctCos6 = 1567; // cos(6*pi/16) - var dctSin6 = 3784; // sin(6*pi/16) - var dctSqrt2 = 5793; // sqrt(2) - var dctSqrt1d2 = 2896; // sqrt(2) / 2 - - function constructor() { - } - - function buildHuffmanTable(codeLengths, values) { - var k = 0, code = [], i, j, length = 16; - while (length > 0 && !codeLengths[length - 1]) { - length--; - } - code.push({children: [], index: 0}); - var p = code[0], q; - for (i = 0; i < length; i++) { - for (j = 0; j < codeLengths[i]; j++) { - p = code.pop(); - p.children[p.index] = values[k]; - while (p.index > 0) { - p = code.pop(); - } - p.index++; - code.push(p); - while (code.length <= i) { - code.push(q = {children: [], index: 0}); - p.children[p.index] = q.children; - p = q; - } - k++; - } - if (i + 1 < length) { - // p here points to last code - code.push(q = {children: [], index: 0}); - p.children[p.index] = q.children; - p = q; - } - } - return code[0].children; - } - - function getBlockBufferOffset(component, row, col) { - return 64 * ((component.blocksPerLine + 1) * row + col); - } - - function decodeScan(data, offset, frame, components, resetInterval, - spectralStart, spectralEnd, successivePrev, successive) { - var precision = frame.precision; - var samplesPerLine = frame.samplesPerLine; - var scanLines = frame.scanLines; - var mcusPerLine = frame.mcusPerLine; - var progressive = frame.progressive; - var maxH = frame.maxH, maxV = frame.maxV; - - var startOffset = offset, bitsData = 0, bitsCount = 0; - - function readBit() { - if (bitsCount > 0) { - bitsCount--; - return (bitsData >> bitsCount) & 1; - } - bitsData = data[offset++]; - if (bitsData === 0xFF) { - var nextByte = data[offset++]; - if (nextByte) { - throw 'unexpected marker: ' + - ((bitsData << 8) | nextByte).toString(16); - } - // unstuff 0 - } - bitsCount = 7; - return bitsData >>> 7; - } - - function decodeHuffman(tree) { - var node = tree; - while (true) { - node = node[readBit()]; - if (typeof node === 'number') { - return node; - } - if (typeof node !== 'object') { - throw 'invalid huffman sequence'; - } - } - } - - function receive(length) { - var n = 0; - while (length > 0) { - n = (n << 1) | readBit(); - length--; - } - return n; - } - - function receiveAndExtend(length) { - if (length === 1) { - return readBit() === 1 ? 1 : -1; - } - var n = receive(length); - if (n >= 1 << (length - 1)) { - return n; - } - return n + (-1 << length) + 1; - } - - function decodeBaseline(component, offset) { - var t = decodeHuffman(component.huffmanTableDC); - var diff = t === 0 ? 0 : receiveAndExtend(t); - component.blockData[offset] = (component.pred += diff); - var k = 1; - while (k < 64) { - var rs = decodeHuffman(component.huffmanTableAC); - var s = rs & 15, r = rs >> 4; - if (s === 0) { - if (r < 15) { - break; - } - k += 16; - continue; - } - k += r; - var z = dctZigZag[k]; - component.blockData[offset + z] = receiveAndExtend(s); - k++; - } - } - - function decodeDCFirst(component, offset) { - var t = decodeHuffman(component.huffmanTableDC); - var diff = t === 0 ? 0 : (receiveAndExtend(t) << successive); - component.blockData[offset] = (component.pred += diff); - } - - function decodeDCSuccessive(component, offset) { - component.blockData[offset] |= readBit() << successive; - } - - var eobrun = 0; - function decodeACFirst(component, offset) { - if (eobrun > 0) { - eobrun--; - return; - } - var k = spectralStart, e = spectralEnd; - while (k <= e) { - var rs = decodeHuffman(component.huffmanTableAC); - var s = rs & 15, r = rs >> 4; - if (s === 0) { - if (r < 15) { - eobrun = receive(r) + (1 << r) - 1; - break; - } - k += 16; - continue; - } - k += r; - var z = dctZigZag[k]; - component.blockData[offset + z] = - receiveAndExtend(s) * (1 << successive); - k++; - } - } - - var successiveACState = 0, successiveACNextValue; - function decodeACSuccessive(component, offset) { - var k = spectralStart; - var e = spectralEnd; - var r = 0; - var s; - var rs; - while (k <= e) { - var z = dctZigZag[k]; - switch (successiveACState) { - case 0: // initial state - rs = decodeHuffman(component.huffmanTableAC); - s = rs & 15; - r = rs >> 4; - if (s === 0) { - if (r < 15) { - eobrun = receive(r) + (1 << r); - successiveACState = 4; - } else { - r = 16; - successiveACState = 1; - } - } else { - if (s !== 1) { - throw 'invalid ACn encoding'; - } - successiveACNextValue = receiveAndExtend(s); - successiveACState = r ? 2 : 3; - } - continue; - case 1: // skipping r zero items - case 2: - if (component.blockData[offset + z]) { - component.blockData[offset + z] += (readBit() << successive); - } else { - r--; - if (r === 0) { - successiveACState = successiveACState === 2 ? 3 : 0; - } - } - break; - case 3: // set value for a zero item - if (component.blockData[offset + z]) { - component.blockData[offset + z] += (readBit() << successive); - } else { - component.blockData[offset + z] = - successiveACNextValue << successive; - successiveACState = 0; - } - break; - case 4: // eob - if (component.blockData[offset + z]) { - component.blockData[offset + z] += (readBit() << successive); - } - break; - } - k++; - } - if (successiveACState === 4) { - eobrun--; - if (eobrun === 0) { - successiveACState = 0; - } - } - } - - function decodeMcu(component, decode, mcu, row, col) { - var mcuRow = (mcu / mcusPerLine) | 0; - var mcuCol = mcu % mcusPerLine; - var blockRow = mcuRow * component.v + row; - var blockCol = mcuCol * component.h + col; - var offset = getBlockBufferOffset(component, blockRow, blockCol); - decode(component, offset); - } - - function decodeBlock(component, decode, mcu) { - var blockRow = (mcu / component.blocksPerLine) | 0; - var blockCol = mcu % component.blocksPerLine; - var offset = getBlockBufferOffset(component, blockRow, blockCol); - decode(component, offset); - } - - var componentsLength = components.length; - var component, i, j, k, n; - var decodeFn; - if (progressive) { - if (spectralStart === 0) { - decodeFn = successivePrev === 0 ? decodeDCFirst : decodeDCSuccessive; - } else { - decodeFn = successivePrev === 0 ? decodeACFirst : decodeACSuccessive; - } - } else { - decodeFn = decodeBaseline; - } - - var mcu = 0, marker; - var mcuExpected; - if (componentsLength === 1) { - mcuExpected = components[0].blocksPerLine * components[0].blocksPerColumn; - } else { - mcuExpected = mcusPerLine * frame.mcusPerColumn; - } - if (!resetInterval) { - resetInterval = mcuExpected; - } - - var h, v; - while (mcu < mcuExpected) { - // reset interval stuff - for (i = 0; i < componentsLength; i++) { - components[i].pred = 0; - } - eobrun = 0; - - if (componentsLength === 1) { - component = components[0]; - for (n = 0; n < resetInterval; n++) { - decodeBlock(component, decodeFn, mcu); - mcu++; - } - } else { - for (n = 0; n < resetInterval; n++) { - for (i = 0; i < componentsLength; i++) { - component = components[i]; - h = component.h; - v = component.v; - for (j = 0; j < v; j++) { - for (k = 0; k < h; k++) { - decodeMcu(component, decodeFn, mcu, j, k); - } - } - } - mcu++; - } - } - - // find marker - bitsCount = 0; - marker = (data[offset] << 8) | data[offset + 1]; - if (marker <= 0xFF00) { - throw 'marker was not found'; - } - - if (marker >= 0xFFD0 && marker <= 0xFFD7) { // RSTx - offset += 2; - } else { - break; - } - } - - return offset - startOffset; - } - - // A port of poppler's IDCT method which in turn is taken from: - // Christoph Loeffler, Adriaan Ligtenberg, George S. Moschytz, - // 'Practical Fast 1-D DCT Algorithms with 11 Multiplications', - // IEEE Intl. Conf. on Acoustics, Speech & Signal Processing, 1989, - // 988-991. - function quantizeAndInverse(component, blockBufferOffset, p) { - var qt = component.quantizationTable, blockData = component.blockData; - var v0, v1, v2, v3, v4, v5, v6, v7; - var p0, p1, p2, p3, p4, p5, p6, p7; - var t; - - // inverse DCT on rows - for (var row = 0; row < 64; row += 8) { - // gather block data - p0 = blockData[blockBufferOffset + row]; - p1 = blockData[blockBufferOffset + row + 1]; - p2 = blockData[blockBufferOffset + row + 2]; - p3 = blockData[blockBufferOffset + row + 3]; - p4 = blockData[blockBufferOffset + row + 4]; - p5 = blockData[blockBufferOffset + row + 5]; - p6 = blockData[blockBufferOffset + row + 6]; - p7 = blockData[blockBufferOffset + row + 7]; - - // dequant p0 - p0 *= qt[row]; - - // check for all-zero AC coefficients - if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) { - t = (dctSqrt2 * p0 + 512) >> 10; - p[row] = t; - p[row + 1] = t; - p[row + 2] = t; - p[row + 3] = t; - p[row + 4] = t; - p[row + 5] = t; - p[row + 6] = t; - p[row + 7] = t; - continue; - } - // dequant p1 ... p7 - p1 *= qt[row + 1]; - p2 *= qt[row + 2]; - p3 *= qt[row + 3]; - p4 *= qt[row + 4]; - p5 *= qt[row + 5]; - p6 *= qt[row + 6]; - p7 *= qt[row + 7]; - - // stage 4 - v0 = (dctSqrt2 * p0 + 128) >> 8; - v1 = (dctSqrt2 * p4 + 128) >> 8; - v2 = p2; - v3 = p6; - v4 = (dctSqrt1d2 * (p1 - p7) + 128) >> 8; - v7 = (dctSqrt1d2 * (p1 + p7) + 128) >> 8; - v5 = p3 << 4; - v6 = p5 << 4; - - // stage 3 - v0 = (v0 + v1 + 1) >> 1; - v1 = v0 - v1; - t = (v2 * dctSin6 + v3 * dctCos6 + 128) >> 8; - v2 = (v2 * dctCos6 - v3 * dctSin6 + 128) >> 8; - v3 = t; - v4 = (v4 + v6 + 1) >> 1; - v6 = v4 - v6; - v7 = (v7 + v5 + 1) >> 1; - v5 = v7 - v5; - - // stage 2 - v0 = (v0 + v3 + 1) >> 1; - v3 = v0 - v3; - v1 = (v1 + v2 + 1) >> 1; - v2 = v1 - v2; - t = (v4 * dctSin3 + v7 * dctCos3 + 2048) >> 12; - v4 = (v4 * dctCos3 - v7 * dctSin3 + 2048) >> 12; - v7 = t; - t = (v5 * dctSin1 + v6 * dctCos1 + 2048) >> 12; - v5 = (v5 * dctCos1 - v6 * dctSin1 + 2048) >> 12; - v6 = t; - - // stage 1 - p[row] = v0 + v7; - p[row + 7] = v0 - v7; - p[row + 1] = v1 + v6; - p[row + 6] = v1 - v6; - p[row + 2] = v2 + v5; - p[row + 5] = v2 - v5; - p[row + 3] = v3 + v4; - p[row + 4] = v3 - v4; - } - - // inverse DCT on columns - for (var col = 0; col < 8; ++col) { - p0 = p[col]; - p1 = p[col + 8]; - p2 = p[col + 16]; - p3 = p[col + 24]; - p4 = p[col + 32]; - p5 = p[col + 40]; - p6 = p[col + 48]; - p7 = p[col + 56]; - - // check for all-zero AC coefficients - if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) { - t = (dctSqrt2 * p0 + 8192) >> 14; - // convert to 8 bit - t = (t < -2040) ? 0 : (t >= 2024) ? 255 : (t + 2056) >> 4; - blockData[blockBufferOffset + col] = t; - blockData[blockBufferOffset + col + 8] = t; - blockData[blockBufferOffset + col + 16] = t; - blockData[blockBufferOffset + col + 24] = t; - blockData[blockBufferOffset + col + 32] = t; - blockData[blockBufferOffset + col + 40] = t; - blockData[blockBufferOffset + col + 48] = t; - blockData[blockBufferOffset + col + 56] = t; - continue; - } - - // stage 4 - v0 = (dctSqrt2 * p0 + 2048) >> 12; - v1 = (dctSqrt2 * p4 + 2048) >> 12; - v2 = p2; - v3 = p6; - v4 = (dctSqrt1d2 * (p1 - p7) + 2048) >> 12; - v7 = (dctSqrt1d2 * (p1 + p7) + 2048) >> 12; - v5 = p3; - v6 = p5; - - // stage 3 - // Shift v0 by 128.5 << 5 here, so we don't need to shift p0...p7 when - // converting to UInt8 range later. - v0 = ((v0 + v1 + 1) >> 1) + 4112; - v1 = v0 - v1; - t = (v2 * dctSin6 + v3 * dctCos6 + 2048) >> 12; - v2 = (v2 * dctCos6 - v3 * dctSin6 + 2048) >> 12; - v3 = t; - v4 = (v4 + v6 + 1) >> 1; - v6 = v4 - v6; - v7 = (v7 + v5 + 1) >> 1; - v5 = v7 - v5; - - // stage 2 - v0 = (v0 + v3 + 1) >> 1; - v3 = v0 - v3; - v1 = (v1 + v2 + 1) >> 1; - v2 = v1 - v2; - t = (v4 * dctSin3 + v7 * dctCos3 + 2048) >> 12; - v4 = (v4 * dctCos3 - v7 * dctSin3 + 2048) >> 12; - v7 = t; - t = (v5 * dctSin1 + v6 * dctCos1 + 2048) >> 12; - v5 = (v5 * dctCos1 - v6 * dctSin1 + 2048) >> 12; - v6 = t; - - // stage 1 - p0 = v0 + v7; - p7 = v0 - v7; - p1 = v1 + v6; - p6 = v1 - v6; - p2 = v2 + v5; - p5 = v2 - v5; - p3 = v3 + v4; - p4 = v3 - v4; - - // convert to 8-bit integers - p0 = (p0 < 16) ? 0 : (p0 >= 4080) ? 255 : p0 >> 4; - p1 = (p1 < 16) ? 0 : (p1 >= 4080) ? 255 : p1 >> 4; - p2 = (p2 < 16) ? 0 : (p2 >= 4080) ? 255 : p2 >> 4; - p3 = (p3 < 16) ? 0 : (p3 >= 4080) ? 255 : p3 >> 4; - p4 = (p4 < 16) ? 0 : (p4 >= 4080) ? 255 : p4 >> 4; - p5 = (p5 < 16) ? 0 : (p5 >= 4080) ? 255 : p5 >> 4; - p6 = (p6 < 16) ? 0 : (p6 >= 4080) ? 255 : p6 >> 4; - p7 = (p7 < 16) ? 0 : (p7 >= 4080) ? 255 : p7 >> 4; - - // store block data - blockData[blockBufferOffset + col] = p0; - blockData[blockBufferOffset + col + 8] = p1; - blockData[blockBufferOffset + col + 16] = p2; - blockData[blockBufferOffset + col + 24] = p3; - blockData[blockBufferOffset + col + 32] = p4; - blockData[blockBufferOffset + col + 40] = p5; - blockData[blockBufferOffset + col + 48] = p6; - blockData[blockBufferOffset + col + 56] = p7; - } - } - - function buildComponentData(frame, component) { - var blocksPerLine = component.blocksPerLine; - var blocksPerColumn = component.blocksPerColumn; - var computationBuffer = new Int16Array(64); - - for (var blockRow = 0; blockRow < blocksPerColumn; blockRow++) { - for (var blockCol = 0; blockCol < blocksPerLine; blockCol++) { - var offset = getBlockBufferOffset(component, blockRow, blockCol); - quantizeAndInverse(component, offset, computationBuffer); - } - } - return component.blockData; - } - - function clamp0to255(a) { - return a <= 0 ? 0 : a >= 255 ? 255 : a; - } - - constructor.prototype = { - parse: function parse(data) { - - function readUint16() { - var value = (data[offset] << 8) | data[offset + 1]; - offset += 2; - return value; - } - - function readDataBlock() { - var length = readUint16(); - var array = data.subarray(offset, offset + length - 2); - offset += array.length; - return array; - } - - function prepareComponents(frame) { - var mcusPerLine = Math.ceil(frame.samplesPerLine / 8 / frame.maxH); - var mcusPerColumn = Math.ceil(frame.scanLines / 8 / frame.maxV); - for (var i = 0; i < frame.components.length; i++) { - component = frame.components[i]; - var blocksPerLine = Math.ceil(Math.ceil(frame.samplesPerLine / 8) * - component.h / frame.maxH); - var blocksPerColumn = Math.ceil(Math.ceil(frame.scanLines / 8) * - component.v / frame.maxV); - var blocksPerLineForMcu = mcusPerLine * component.h; - var blocksPerColumnForMcu = mcusPerColumn * component.v; - - var blocksBufferSize = 64 * blocksPerColumnForMcu * - (blocksPerLineForMcu + 1); - component.blockData = new Int16Array(blocksBufferSize); - component.blocksPerLine = blocksPerLine; - component.blocksPerColumn = blocksPerColumn; - } - frame.mcusPerLine = mcusPerLine; - frame.mcusPerColumn = mcusPerColumn; - } - - var offset = 0, length = data.length; - var jfif = null; - var adobe = null; - var pixels = null; - var frame, resetInterval; - var quantizationTables = []; - var huffmanTablesAC = [], huffmanTablesDC = []; - var fileMarker = readUint16(); - if (fileMarker !== 0xFFD8) { // SOI (Start of Image) - throw 'SOI not found'; - } - - fileMarker = readUint16(); - while (fileMarker !== 0xFFD9) { // EOI (End of image) - var i, j, l; - switch(fileMarker) { - case 0xFFE0: // APP0 (Application Specific) - case 0xFFE1: // APP1 - case 0xFFE2: // APP2 - case 0xFFE3: // APP3 - case 0xFFE4: // APP4 - case 0xFFE5: // APP5 - case 0xFFE6: // APP6 - case 0xFFE7: // APP7 - case 0xFFE8: // APP8 - case 0xFFE9: // APP9 - case 0xFFEA: // APP10 - case 0xFFEB: // APP11 - case 0xFFEC: // APP12 - case 0xFFED: // APP13 - case 0xFFEE: // APP14 - case 0xFFEF: // APP15 - case 0xFFFE: // COM (Comment) - var appData = readDataBlock(); - - if (fileMarker === 0xFFE0) { - if (appData[0] === 0x4A && appData[1] === 0x46 && - appData[2] === 0x49 && appData[3] === 0x46 && - appData[4] === 0) { // 'JFIF\x00' - jfif = { - version: { major: appData[5], minor: appData[6] }, - densityUnits: appData[7], - xDensity: (appData[8] << 8) | appData[9], - yDensity: (appData[10] << 8) | appData[11], - thumbWidth: appData[12], - thumbHeight: appData[13], - thumbData: appData.subarray(14, 14 + - 3 * appData[12] * appData[13]) - }; - } - } - // TODO APP1 - Exif - if (fileMarker === 0xFFEE) { - if (appData[0] === 0x41 && appData[1] === 0x64 && - appData[2] === 0x6F && appData[3] === 0x62 && - appData[4] === 0x65) { // 'Adobe' - adobe = { - version: (appData[5] << 8) | appData[6], - flags0: (appData[7] << 8) | appData[8], - flags1: (appData[9] << 8) | appData[10], - transformCode: appData[11] - }; - } - } - break; - - case 0xFFDB: // DQT (Define Quantization Tables) - var quantizationTablesLength = readUint16(); - var quantizationTablesEnd = quantizationTablesLength + offset - 2; - var z; - while (offset < quantizationTablesEnd) { - var quantizationTableSpec = data[offset++]; - var tableData = new Uint16Array(64); - if ((quantizationTableSpec >> 4) === 0) { // 8 bit values - for (j = 0; j < 64; j++) { - z = dctZigZag[j]; - tableData[z] = data[offset++]; - } - } else if ((quantizationTableSpec >> 4) === 1) { //16 bit - for (j = 0; j < 64; j++) { - z = dctZigZag[j]; - tableData[z] = readUint16(); - } - } else { - throw 'DQT: invalid table spec'; - } - quantizationTables[quantizationTableSpec & 15] = tableData; - } - break; - - case 0xFFC0: // SOF0 (Start of Frame, Baseline DCT) - case 0xFFC1: // SOF1 (Start of Frame, Extended DCT) - case 0xFFC2: // SOF2 (Start of Frame, Progressive DCT) - if (frame) { - throw 'Only single frame JPEGs supported'; - } - readUint16(); // skip data length - frame = {}; - frame.extended = (fileMarker === 0xFFC1); - frame.progressive = (fileMarker === 0xFFC2); - frame.precision = data[offset++]; - frame.scanLines = readUint16(); - frame.samplesPerLine = readUint16(); - frame.components = []; - frame.componentIds = {}; - var componentsCount = data[offset++], componentId; - var maxH = 0, maxV = 0; - for (i = 0; i < componentsCount; i++) { - componentId = data[offset]; - var h = data[offset + 1] >> 4; - var v = data[offset + 1] & 15; - if (maxH < h) { - maxH = h; - } - if (maxV < v) { - maxV = v; - } - var qId = data[offset + 2]; - l = frame.components.push({ - h: h, - v: v, - quantizationTable: quantizationTables[qId] - }); - frame.componentIds[componentId] = l - 1; - offset += 3; - } - frame.maxH = maxH; - frame.maxV = maxV; - prepareComponents(frame); - break; - - case 0xFFC4: // DHT (Define Huffman Tables) - var huffmanLength = readUint16(); - for (i = 2; i < huffmanLength;) { - var huffmanTableSpec = data[offset++]; - var codeLengths = new Uint8Array(16); - var codeLengthSum = 0; - for (j = 0; j < 16; j++, offset++) { - codeLengthSum += (codeLengths[j] = data[offset]); - } - var huffmanValues = new Uint8Array(codeLengthSum); - for (j = 0; j < codeLengthSum; j++, offset++) { - huffmanValues[j] = data[offset]; - } - i += 17 + codeLengthSum; - - ((huffmanTableSpec >> 4) === 0 ? - huffmanTablesDC : huffmanTablesAC)[huffmanTableSpec & 15] = - buildHuffmanTable(codeLengths, huffmanValues); - } - break; - - case 0xFFDD: // DRI (Define Restart Interval) - readUint16(); // skip data length - resetInterval = readUint16(); - break; - - case 0xFFDA: // SOS (Start of Scan) - var scanLength = readUint16(); - var selectorsCount = data[offset++]; - var components = [], component; - for (i = 0; i < selectorsCount; i++) { - var componentIndex = frame.componentIds[data[offset++]]; - component = frame.components[componentIndex]; - var tableSpec = data[offset++]; - component.huffmanTableDC = huffmanTablesDC[tableSpec >> 4]; - component.huffmanTableAC = huffmanTablesAC[tableSpec & 15]; - components.push(component); - } - var spectralStart = data[offset++]; - var spectralEnd = data[offset++]; - var successiveApproximation = data[offset++]; - var processed = decodeScan(data, offset, - frame, components, resetInterval, - spectralStart, spectralEnd, - successiveApproximation >> 4, successiveApproximation & 15); - offset += processed; - break; - - case 0xFFFF: // Fill bytes - if (data[offset] !== 0xFF) { // Avoid skipping a valid marker. - offset--; - } - break; - - default: - if (data[offset - 3] === 0xFF && - data[offset - 2] >= 0xC0 && data[offset - 2] <= 0xFE) { - // could be incorrect encoding -- last 0xFF byte of the previous - // block was eaten by the encoder - offset -= 3; - break; - } - throw 'unknown JPEG marker ' + fileMarker.toString(16); - } - fileMarker = readUint16(); - } - - this.width = frame.samplesPerLine; - this.height = frame.scanLines; - this.jfif = jfif; - this.adobe = adobe; - this.components = []; - for (i = 0; i < frame.components.length; i++) { - component = frame.components[i]; - this.components.push({ - output: buildComponentData(frame, component), - scaleX: component.h / frame.maxH, - scaleY: component.v / frame.maxV, - blocksPerLine: component.blocksPerLine, - blocksPerColumn: component.blocksPerColumn - }); - } - this.numComponents = this.components.length; - }, - - _getLinearizedBlockData: function getLinearizedBlockData(width, height) { - var scaleX = this.width / width, scaleY = this.height / height; - - var component, componentScaleX, componentScaleY, blocksPerScanline; - var x, y, i, j, k; - var index; - var offset = 0; - var output; - var numComponents = this.components.length; - var dataLength = width * height * numComponents; - var data = new Uint8Array(dataLength); - var xScaleBlockOffset = new Uint32Array(width); - var mask3LSB = 0xfffffff8; // used to clear the 3 LSBs - - for (i = 0; i < numComponents; i++) { - component = this.components[i]; - componentScaleX = component.scaleX * scaleX; - componentScaleY = component.scaleY * scaleY; - offset = i; - output = component.output; - blocksPerScanline = (component.blocksPerLine + 1) << 3; - // precalculate the xScaleBlockOffset - for (x = 0; x < width; x++) { - j = 0 | (x * componentScaleX); - xScaleBlockOffset[x] = ((j & mask3LSB) << 3) | (j & 7); - } - // linearize the blocks of the component - for (y = 0; y < height; y++) { - j = 0 | (y * componentScaleY); - index = blocksPerScanline * (j & mask3LSB) | ((j & 7) << 3); - for (x = 0; x < width; x++) { - data[offset] = output[index + xScaleBlockOffset[x]]; - offset += numComponents; - } - } - } - - // decodeTransform contains pairs of multiplier (-256..256) and additive - var transform = this.decodeTransform; - if (transform) { - for (i = 0; i < dataLength;) { - for (j = 0, k = 0; j < numComponents; j++, i++, k += 2) { - data[i] = ((data[i] * transform[k]) >> 8) + transform[k + 1]; - } - } - } - return data; - }, - - _isColorConversionNeeded: function isColorConversionNeeded() { - if (this.adobe && this.adobe.transformCode) { - // The adobe transform marker overrides any previous setting - return true; - } else if (this.numComponents === 3) { - return true; - } else { - return false; - } - }, - - _convertYccToRgb: function convertYccToRgb(data) { - var Y, Cb, Cr; - for (var i = 0, length = data.length; i < length; i += 3) { - Y = data[i ]; - Cb = data[i + 1]; - Cr = data[i + 2]; - data[i ] = clamp0to255(Y - 179.456 + 1.402 * Cr); - data[i + 1] = clamp0to255(Y + 135.459 - 0.344 * Cb - 0.714 * Cr); - data[i + 2] = clamp0to255(Y - 226.816 + 1.772 * Cb); - } - return data; - }, - - _convertYcckToRgb: function convertYcckToRgb(data) { - var Y, Cb, Cr, k; - var offset = 0; - for (var i = 0, length = data.length; i < length; i += 4) { - Y = data[i]; - Cb = data[i + 1]; - Cr = data[i + 2]; - k = data[i + 3]; - - var r = -122.67195406894 + - Cb * (-6.60635669420364e-5 * Cb + 0.000437130475926232 * Cr - - 5.4080610064599e-5 * Y + 0.00048449797120281 * k - - 0.154362151871126) + - Cr * (-0.000957964378445773 * Cr + 0.000817076911346625 * Y - - 0.00477271405408747 * k + 1.53380253221734) + - Y * (0.000961250184130688 * Y - 0.00266257332283933 * k + - 0.48357088451265) + - k * (-0.000336197177618394 * k + 0.484791561490776); - - var g = 107.268039397724 + - Cb * (2.19927104525741e-5 * Cb - 0.000640992018297945 * Cr + - 0.000659397001245577 * Y + 0.000426105652938837 * k - - 0.176491792462875) + - Cr * (-0.000778269941513683 * Cr + 0.00130872261408275 * Y + - 0.000770482631801132 * k - 0.151051492775562) + - Y * (0.00126935368114843 * Y - 0.00265090189010898 * k + - 0.25802910206845) + - k * (-0.000318913117588328 * k - 0.213742400323665); - - var b = -20.810012546947 + - Cb * (-0.000570115196973677 * Cb - 2.63409051004589e-5 * Cr + - 0.0020741088115012 * Y - 0.00288260236853442 * k + - 0.814272968359295) + - Cr * (-1.53496057440975e-5 * Cr - 0.000132689043961446 * Y + - 0.000560833691242812 * k - 0.195152027534049) + - Y * (0.00174418132927582 * Y - 0.00255243321439347 * k + - 0.116935020465145) + - k * (-0.000343531996510555 * k + 0.24165260232407); - - data[offset++] = clamp0to255(r); - data[offset++] = clamp0to255(g); - data[offset++] = clamp0to255(b); - } - return data; - }, - - _convertYcckToCmyk: function convertYcckToCmyk(data) { - var Y, Cb, Cr; - for (var i = 0, length = data.length; i < length; i += 4) { - Y = data[i]; - Cb = data[i + 1]; - Cr = data[i + 2]; - data[i ] = clamp0to255(434.456 - Y - 1.402 * Cr); - data[i + 1] = clamp0to255(119.541 - Y + 0.344 * Cb + 0.714 * Cr); - data[i + 2] = clamp0to255(481.816 - Y - 1.772 * Cb); - // K in data[i + 3] is unchanged - } - return data; - }, - - _convertCmykToRgb: function convertCmykToRgb(data) { - var c, m, y, k; - var offset = 0; - var min = -255 * 255 * 255; - var scale = 1 / 255 / 255; - for (var i = 0, length = data.length; i < length; i += 4) { - c = data[i]; - m = data[i + 1]; - y = data[i + 2]; - k = data[i + 3]; - - var r = - c * (-4.387332384609988 * c + 54.48615194189176 * m + - 18.82290502165302 * y + 212.25662451639585 * k - - 72734.4411664936) + - m * (1.7149763477362134 * m - 5.6096736904047315 * y - - 17.873870861415444 * k - 1401.7366389350734) + - y * (-2.5217340131683033 * y - 21.248923337353073 * k + - 4465.541406466231) - - k * (21.86122147463605 * k + 48317.86113160301); - var g = - c * (8.841041422036149 * c + 60.118027045597366 * m + - 6.871425592049007 * y + 31.159100130055922 * k - - 20220.756542821975) + - m * (-15.310361306967817 * m + 17.575251261109482 * y + - 131.35250912493976 * k - 48691.05921601825) + - y * (4.444339102852739 * y + 9.8632861493405 * k - - 6341.191035517494) - - k * (20.737325471181034 * k + 47890.15695978492); - var b = - c * (0.8842522430003296 * c + 8.078677503112928 * m + - 30.89978309703729 * y - 0.23883238689178934 * k - - 3616.812083916688) + - m * (10.49593273432072 * m + 63.02378494754052 * y + - 50.606957656360734 * k - 28620.90484698408) + - y * (0.03296041114873217 * y + 115.60384449646641 * k - - 49363.43385999684) - - k * (22.33816807309886 * k + 45932.16563550634); - - data[offset++] = r >= 0 ? 255 : r <= min ? 0 : 255 + r * scale | 0; - data[offset++] = g >= 0 ? 255 : g <= min ? 0 : 255 + g * scale | 0; - data[offset++] = b >= 0 ? 255 : b <= min ? 0 : 255 + b * scale | 0; - } - return data; - }, - - getData: function getData(width, height, forceRGBoutput) { - if (this.numComponents > 4) { - throw 'Unsupported color mode'; - } - // type of data: Uint8Array(width * height * numComponents) - var data = this._getLinearizedBlockData(width, height); - - if (this.numComponents === 3) { - return this._convertYccToRgb(data); - } else if (this.numComponents === 4) { - if (this._isColorConversionNeeded()) { - if (forceRGBoutput) { - return this._convertYcckToRgb(data); - } else { - return this._convertYcckToCmyk(data); - } - } else if (forceRGBoutput) { - return this._convertCmykToRgb(data); - } - } - return data; - } - }; - - return constructor; -})(); - - -var JpxImage = (function JpxImageClosure() { - // Table E.1 - var SubbandsGainLog2 = { - 'LL': 0, - 'LH': 1, - 'HL': 1, - 'HH': 2 - }; - function JpxImage() { - this.failOnCorruptedImage = false; - } - JpxImage.prototype = { - parse: function JpxImage_parse(data) { - - var head = readUint16(data, 0); - // No box header, immediate start of codestream (SOC) - if (head === 0xFF4F) { - this.parseCodestream(data, 0, data.length); - return; - } - - var position = 0, length = data.length; - while (position < length) { - var headerSize = 8; - var lbox = readUint32(data, position); - var tbox = readUint32(data, position + 4); - position += headerSize; - if (lbox === 1) { - // XLBox: read UInt64 according to spec. - // JavaScript's int precision of 53 bit should be sufficient here. - lbox = readUint32(data, position) * 4294967296 + - readUint32(data, position + 4); - position += 8; - headerSize += 8; - } - if (lbox === 0) { - lbox = length - position + headerSize; - } - if (lbox < headerSize) { - throw new Error('JPX Error: Invalid box field size'); - } - var dataLength = lbox - headerSize; - var jumpDataLength = true; - switch (tbox) { - case 0x6A703268: // 'jp2h' - jumpDataLength = false; // parsing child boxes - break; - case 0x636F6C72: // 'colr' - // Colorspaces are not used, the CS from the PDF is used. - var method = data[position]; - var precedence = data[position + 1]; - var approximation = data[position + 2]; - if (method === 1) { - // enumerated colorspace - var colorspace = readUint32(data, position + 3); - switch (colorspace) { - case 16: // this indicates a sRGB colorspace - case 17: // this indicates a grayscale colorspace - case 18: // this indicates a YUV colorspace - break; - default: - warn('Unknown colorspace ' + colorspace); - break; - } - } else if (method === 2) { - info('ICC profile not supported'); - } - break; - case 0x6A703263: // 'jp2c' - this.parseCodestream(data, position, position + dataLength); - break; - case 0x6A502020: // 'jP\024\024' - if (0x0d0a870a !== readUint32(data, position)) { - warn('Invalid JP2 signature'); - } - break; - // The following header types are valid but currently not used: - case 0x6A501A1A: // 'jP\032\032' - case 0x66747970: // 'ftyp' - case 0x72726571: // 'rreq' - case 0x72657320: // 'res ' - case 0x69686472: // 'ihdr' - break; - default: - var headerType = String.fromCharCode((tbox >> 24) & 0xFF, - (tbox >> 16) & 0xFF, - (tbox >> 8) & 0xFF, - tbox & 0xFF); - warn('Unsupported header type ' + tbox + ' (' + headerType + ')'); - break; - } - if (jumpDataLength) { - position += dataLength; - } - } - }, - parseImageProperties: function JpxImage_parseImageProperties(stream) { - var newByte = stream.getByte(); - while (newByte >= 0) { - var oldByte = newByte; - newByte = stream.getByte(); - var code = (oldByte << 8) | newByte; - // Image and tile size (SIZ) - if (code === 0xFF51) { - stream.skip(4); - var Xsiz = stream.getInt32() >>> 0; // Byte 4 - var Ysiz = stream.getInt32() >>> 0; // Byte 8 - var XOsiz = stream.getInt32() >>> 0; // Byte 12 - var YOsiz = stream.getInt32() >>> 0; // Byte 16 - stream.skip(16); - var Csiz = stream.getUint16(); // Byte 36 - this.width = Xsiz - XOsiz; - this.height = Ysiz - YOsiz; - this.componentsCount = Csiz; - // Results are always returned as Uint8Arrays - this.bitsPerComponent = 8; - return; - } - } - throw new Error('JPX Error: No size marker found in JPX stream'); - }, - parseCodestream: function JpxImage_parseCodestream(data, start, end) { - var context = {}; - try { - var doNotRecover = false; - var position = start; - while (position + 1 < end) { - var code = readUint16(data, position); - position += 2; - - var length = 0, j, sqcd, spqcds, spqcdSize, scalarExpounded, tile; - switch (code) { - case 0xFF4F: // Start of codestream (SOC) - context.mainHeader = true; - break; - case 0xFFD9: // End of codestream (EOC) - break; - case 0xFF51: // Image and tile size (SIZ) - length = readUint16(data, position); - var siz = {}; - siz.Xsiz = readUint32(data, position + 4); - siz.Ysiz = readUint32(data, position + 8); - siz.XOsiz = readUint32(data, position + 12); - siz.YOsiz = readUint32(data, position + 16); - siz.XTsiz = readUint32(data, position + 20); - siz.YTsiz = readUint32(data, position + 24); - siz.XTOsiz = readUint32(data, position + 28); - siz.YTOsiz = readUint32(data, position + 32); - var componentsCount = readUint16(data, position + 36); - siz.Csiz = componentsCount; - var components = []; - j = position + 38; - for (var i = 0; i < componentsCount; i++) { - var component = { - precision: (data[j] & 0x7F) + 1, - isSigned: !!(data[j] & 0x80), - XRsiz: data[j + 1], - YRsiz: data[j + 1] - }; - calculateComponentDimensions(component, siz); - components.push(component); - } - context.SIZ = siz; - context.components = components; - calculateTileGrids(context, components); - context.QCC = []; - context.COC = []; - break; - case 0xFF5C: // Quantization default (QCD) - length = readUint16(data, position); - var qcd = {}; - j = position + 2; - sqcd = data[j++]; - switch (sqcd & 0x1F) { - case 0: - spqcdSize = 8; - scalarExpounded = true; - break; - case 1: - spqcdSize = 16; - scalarExpounded = false; - break; - case 2: - spqcdSize = 16; - scalarExpounded = true; - break; - default: - throw new Error('JPX Error: Invalid SQcd value ' + sqcd); - } - qcd.noQuantization = (spqcdSize === 8); - qcd.scalarExpounded = scalarExpounded; - qcd.guardBits = sqcd >> 5; - spqcds = []; - while (j < length + position) { - var spqcd = {}; - if (spqcdSize === 8) { - spqcd.epsilon = data[j++] >> 3; - spqcd.mu = 0; - } else { - spqcd.epsilon = data[j] >> 3; - spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1]; - j += 2; - } - spqcds.push(spqcd); - } - qcd.SPqcds = spqcds; - if (context.mainHeader) { - context.QCD = qcd; - } else { - context.currentTile.QCD = qcd; - context.currentTile.QCC = []; - } - break; - case 0xFF5D: // Quantization component (QCC) - length = readUint16(data, position); - var qcc = {}; - j = position + 2; - var cqcc; - if (context.SIZ.Csiz < 257) { - cqcc = data[j++]; - } else { - cqcc = readUint16(data, j); - j += 2; - } - sqcd = data[j++]; - switch (sqcd & 0x1F) { - case 0: - spqcdSize = 8; - scalarExpounded = true; - break; - case 1: - spqcdSize = 16; - scalarExpounded = false; - break; - case 2: - spqcdSize = 16; - scalarExpounded = true; - break; - default: - throw new Error('JPX Error: Invalid SQcd value ' + sqcd); - } - qcc.noQuantization = (spqcdSize === 8); - qcc.scalarExpounded = scalarExpounded; - qcc.guardBits = sqcd >> 5; - spqcds = []; - while (j < (length + position)) { - spqcd = {}; - if (spqcdSize === 8) { - spqcd.epsilon = data[j++] >> 3; - spqcd.mu = 0; - } else { - spqcd.epsilon = data[j] >> 3; - spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1]; - j += 2; - } - spqcds.push(spqcd); - } - qcc.SPqcds = spqcds; - if (context.mainHeader) { - context.QCC[cqcc] = qcc; - } else { - context.currentTile.QCC[cqcc] = qcc; - } - break; - case 0xFF52: // Coding style default (COD) - length = readUint16(data, position); - var cod = {}; - j = position + 2; - var scod = data[j++]; - cod.entropyCoderWithCustomPrecincts = !!(scod & 1); - cod.sopMarkerUsed = !!(scod & 2); - cod.ephMarkerUsed = !!(scod & 4); - cod.progressionOrder = data[j++]; - cod.layersCount = readUint16(data, j); - j += 2; - cod.multipleComponentTransform = data[j++]; - - cod.decompositionLevelsCount = data[j++]; - cod.xcb = (data[j++] & 0xF) + 2; - cod.ycb = (data[j++] & 0xF) + 2; - var blockStyle = data[j++]; - cod.selectiveArithmeticCodingBypass = !!(blockStyle & 1); - cod.resetContextProbabilities = !!(blockStyle & 2); - cod.terminationOnEachCodingPass = !!(blockStyle & 4); - cod.verticalyStripe = !!(blockStyle & 8); - cod.predictableTermination = !!(blockStyle & 16); - cod.segmentationSymbolUsed = !!(blockStyle & 32); - cod.reversibleTransformation = data[j++]; - if (cod.entropyCoderWithCustomPrecincts) { - var precinctsSizes = []; - while (j < length + position) { - var precinctsSize = data[j++]; - precinctsSizes.push({ - PPx: precinctsSize & 0xF, - PPy: precinctsSize >> 4 - }); - } - cod.precinctsSizes = precinctsSizes; - } - var unsupported = []; - if (cod.selectiveArithmeticCodingBypass) { - unsupported.push('selectiveArithmeticCodingBypass'); - } - if (cod.resetContextProbabilities) { - unsupported.push('resetContextProbabilities'); - } - if (cod.terminationOnEachCodingPass) { - unsupported.push('terminationOnEachCodingPass'); - } - if (cod.verticalyStripe) { - unsupported.push('verticalyStripe'); - } - if (cod.predictableTermination) { - unsupported.push('predictableTermination'); - } - if (unsupported.length > 0) { - doNotRecover = true; - throw new Error('JPX Error: Unsupported COD options (' + - unsupported.join(', ') + ')'); - } - if (context.mainHeader) { - context.COD = cod; - } else { - context.currentTile.COD = cod; - context.currentTile.COC = []; - } - break; - case 0xFF90: // Start of tile-part (SOT) - length = readUint16(data, position); - tile = {}; - tile.index = readUint16(data, position + 2); - tile.length = readUint32(data, position + 4); - tile.dataEnd = tile.length + position - 2; - tile.partIndex = data[position + 8]; - tile.partsCount = data[position + 9]; - - context.mainHeader = false; - if (tile.partIndex === 0) { - // reset component specific settings - tile.COD = context.COD; - tile.COC = context.COC.slice(0); // clone of the global COC - tile.QCD = context.QCD; - tile.QCC = context.QCC.slice(0); // clone of the global COC - } - context.currentTile = tile; - break; - case 0xFF93: // Start of data (SOD) - tile = context.currentTile; - if (tile.partIndex === 0) { - initializeTile(context, tile.index); - buildPackets(context); - } - - // moving to the end of the data - length = tile.dataEnd - position; - parseTilePackets(context, data, position, length); - break; - case 0xFF55: // Tile-part lengths, main header (TLM) - case 0xFF57: // Packet length, main header (PLM) - case 0xFF58: // Packet length, tile-part header (PLT) - case 0xFF64: // Comment (COM) - length = readUint16(data, position); - // skipping content - break; - case 0xFF53: // Coding style component (COC) - throw new Error('JPX Error: Codestream code 0xFF53 (COC) is ' + - 'not implemented'); - default: - throw new Error('JPX Error: Unknown codestream code: ' + - code.toString(16)); - } - position += length; - } - } catch (e) { - if (doNotRecover || this.failOnCorruptedImage) { - throw e; - } else { - warn('Trying to recover from ' + e.message); - } - } - this.tiles = transformComponents(context); - this.width = context.SIZ.Xsiz - context.SIZ.XOsiz; - this.height = context.SIZ.Ysiz - context.SIZ.YOsiz; - this.componentsCount = context.SIZ.Csiz; - } - }; - function calculateComponentDimensions(component, siz) { - // Section B.2 Component mapping - component.x0 = Math.ceil(siz.XOsiz / component.XRsiz); - component.x1 = Math.ceil(siz.Xsiz / component.XRsiz); - component.y0 = Math.ceil(siz.YOsiz / component.YRsiz); - component.y1 = Math.ceil(siz.Ysiz / component.YRsiz); - component.width = component.x1 - component.x0; - component.height = component.y1 - component.y0; - } - function calculateTileGrids(context, components) { - var siz = context.SIZ; - // Section B.3 Division into tile and tile-components - var tile, tiles = []; - var numXtiles = Math.ceil((siz.Xsiz - siz.XTOsiz) / siz.XTsiz); - var numYtiles = Math.ceil((siz.Ysiz - siz.YTOsiz) / siz.YTsiz); - for (var q = 0; q < numYtiles; q++) { - for (var p = 0; p < numXtiles; p++) { - tile = {}; - tile.tx0 = Math.max(siz.XTOsiz + p * siz.XTsiz, siz.XOsiz); - tile.ty0 = Math.max(siz.YTOsiz + q * siz.YTsiz, siz.YOsiz); - tile.tx1 = Math.min(siz.XTOsiz + (p + 1) * siz.XTsiz, siz.Xsiz); - tile.ty1 = Math.min(siz.YTOsiz + (q + 1) * siz.YTsiz, siz.Ysiz); - tile.width = tile.tx1 - tile.tx0; - tile.height = tile.ty1 - tile.ty0; - tile.components = []; - tiles.push(tile); - } - } - context.tiles = tiles; - - var componentsCount = siz.Csiz; - for (var i = 0, ii = componentsCount; i < ii; i++) { - var component = components[i]; - for (var j = 0, jj = tiles.length; j < jj; j++) { - var tileComponent = {}; - tile = tiles[j]; - tileComponent.tcx0 = Math.ceil(tile.tx0 / component.XRsiz); - tileComponent.tcy0 = Math.ceil(tile.ty0 / component.YRsiz); - tileComponent.tcx1 = Math.ceil(tile.tx1 / component.XRsiz); - tileComponent.tcy1 = Math.ceil(tile.ty1 / component.YRsiz); - tileComponent.width = tileComponent.tcx1 - tileComponent.tcx0; - tileComponent.height = tileComponent.tcy1 - tileComponent.tcy0; - tile.components[i] = tileComponent; - } - } - } - function getBlocksDimensions(context, component, r) { - var codOrCoc = component.codingStyleParameters; - var result = {}; - if (!codOrCoc.entropyCoderWithCustomPrecincts) { - result.PPx = 15; - result.PPy = 15; - } else { - result.PPx = codOrCoc.precinctsSizes[r].PPx; - result.PPy = codOrCoc.precinctsSizes[r].PPy; - } - // calculate codeblock size as described in section B.7 - result.xcb_ = (r > 0 ? Math.min(codOrCoc.xcb, result.PPx - 1) : - Math.min(codOrCoc.xcb, result.PPx)); - result.ycb_ = (r > 0 ? Math.min(codOrCoc.ycb, result.PPy - 1) : - Math.min(codOrCoc.ycb, result.PPy)); - return result; - } - function buildPrecincts(context, resolution, dimensions) { - // Section B.6 Division resolution to precincts - var precinctWidth = 1 << dimensions.PPx; - var precinctHeight = 1 << dimensions.PPy; - // Jasper introduces codeblock groups for mapping each subband codeblocks - // to precincts. Precinct partition divides a resolution according to width - // and height parameters. The subband that belongs to the resolution level - // has a different size than the level, unless it is the zero resolution. - - // From Jasper documentation: jpeg2000.pdf, section K: Tier-2 coding: - // The precinct partitioning for a particular subband is derived from a - // partitioning of its parent LL band (i.e., the LL band at the next higher - // resolution level)... The LL band associated with each resolution level is - // divided into precincts... Each of the resulting precinct regions is then - // mapped into its child subbands (if any) at the next lower resolution - // level. This is accomplished by using the coordinate transformation - // (u, v) = (ceil(x/2), ceil(y/2)) where (x, y) and (u, v) are the - // coordinates of a point in the LL band and child subband, respectively. - var isZeroRes = resolution.resLevel === 0; - var precinctWidthInSubband = 1 << (dimensions.PPx + (isZeroRes ? 0 : -1)); - var precinctHeightInSubband = 1 << (dimensions.PPy + (isZeroRes ? 0 : -1)); - var numprecinctswide = (resolution.trx1 > resolution.trx0 ? - Math.ceil(resolution.trx1 / precinctWidth) - - Math.floor(resolution.trx0 / precinctWidth) : 0); - var numprecinctshigh = (resolution.try1 > resolution.try0 ? - Math.ceil(resolution.try1 / precinctHeight) - - Math.floor(resolution.try0 / precinctHeight) : 0); - var numprecincts = numprecinctswide * numprecinctshigh; - - resolution.precinctParameters = { - precinctWidth: precinctWidth, - precinctHeight: precinctHeight, - numprecinctswide: numprecinctswide, - numprecinctshigh: numprecinctshigh, - numprecincts: numprecincts, - precinctWidthInSubband: precinctWidthInSubband, - precinctHeightInSubband: precinctHeightInSubband - }; - } - function buildCodeblocks(context, subband, dimensions) { - // Section B.7 Division sub-band into code-blocks - var xcb_ = dimensions.xcb_; - var ycb_ = dimensions.ycb_; - var codeblockWidth = 1 << xcb_; - var codeblockHeight = 1 << ycb_; - var cbx0 = subband.tbx0 >> xcb_; - var cby0 = subband.tby0 >> ycb_; - var cbx1 = (subband.tbx1 + codeblockWidth - 1) >> xcb_; - var cby1 = (subband.tby1 + codeblockHeight - 1) >> ycb_; - var precinctParameters = subband.resolution.precinctParameters; - var codeblocks = []; - var precincts = []; - var i, j, codeblock, precinctNumber; - for (j = cby0; j < cby1; j++) { - for (i = cbx0; i < cbx1; i++) { - codeblock = { - cbx: i, - cby: j, - tbx0: codeblockWidth * i, - tby0: codeblockHeight * j, - tbx1: codeblockWidth * (i + 1), - tby1: codeblockHeight * (j + 1) - }; - - codeblock.tbx0_ = Math.max(subband.tbx0, codeblock.tbx0); - codeblock.tby0_ = Math.max(subband.tby0, codeblock.tby0); - codeblock.tbx1_ = Math.min(subband.tbx1, codeblock.tbx1); - codeblock.tby1_ = Math.min(subband.tby1, codeblock.tby1); - - // Calculate precinct number for this codeblock, codeblock position - // should be relative to its subband, use actual dimension and position - // See comment about codeblock group width and height - var pi = Math.floor((codeblock.tbx0_ - subband.tbx0) / - precinctParameters.precinctWidthInSubband); - var pj = Math.floor((codeblock.tby0_ - subband.tby0) / - precinctParameters.precinctHeightInSubband); - precinctNumber = pi + (pj * precinctParameters.numprecinctswide); - - codeblock.precinctNumber = precinctNumber; - codeblock.subbandType = subband.type; - codeblock.Lblock = 3; - - if (codeblock.tbx1_ <= codeblock.tbx0_ || - codeblock.tby1_ <= codeblock.tby0_) { - continue; - } - codeblocks.push(codeblock); - // building precinct for the sub-band - var precinct = precincts[precinctNumber]; - if (precinct !== undefined) { - if (i < precinct.cbxMin) { - precinct.cbxMin = i; - } else if (i > precinct.cbxMax) { - precinct.cbxMax = i; - } - if (j < precinct.cbyMin) { - precinct.cbxMin = j; - } else if (j > precinct.cbyMax) { - precinct.cbyMax = j; - } - } else { - precincts[precinctNumber] = precinct = { - cbxMin: i, - cbyMin: j, - cbxMax: i, - cbyMax: j - }; - } - codeblock.precinct = precinct; - } - } - subband.codeblockParameters = { - codeblockWidth: xcb_, - codeblockHeight: ycb_, - numcodeblockwide: cbx1 - cbx0 + 1, - numcodeblockhigh: cby1 - cby0 + 1 - }; - subband.codeblocks = codeblocks; - subband.precincts = precincts; - } - function createPacket(resolution, precinctNumber, layerNumber) { - var precinctCodeblocks = []; - // Section B.10.8 Order of info in packet - var subbands = resolution.subbands; - // sub-bands already ordered in 'LL', 'HL', 'LH', and 'HH' sequence - for (var i = 0, ii = subbands.length; i < ii; i++) { - var subband = subbands[i]; - var codeblocks = subband.codeblocks; - for (var j = 0, jj = codeblocks.length; j < jj; j++) { - var codeblock = codeblocks[j]; - if (codeblock.precinctNumber !== precinctNumber) { - continue; - } - precinctCodeblocks.push(codeblock); - } - } - return { - layerNumber: layerNumber, - codeblocks: precinctCodeblocks - }; - } - function LayerResolutionComponentPositionIterator(context) { - var siz = context.SIZ; - var tileIndex = context.currentTile.index; - var tile = context.tiles[tileIndex]; - var layersCount = tile.codingStyleDefaultParameters.layersCount; - var componentsCount = siz.Csiz; - var maxDecompositionLevelsCount = 0; - for (var q = 0; q < componentsCount; q++) { - maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, - tile.components[q].codingStyleParameters.decompositionLevelsCount); - } - - var l = 0, r = 0, i = 0, k = 0; - - this.nextPacket = function JpxImage_nextPacket() { - // Section B.12.1.1 Layer-resolution-component-position - for (; l < layersCount; l++) { - for (; r <= maxDecompositionLevelsCount; r++) { - for (; i < componentsCount; i++) { - var component = tile.components[i]; - if (r > component.codingStyleParameters.decompositionLevelsCount) { - continue; - } - - var resolution = component.resolutions[r]; - var numprecincts = resolution.precinctParameters.numprecincts; - for (; k < numprecincts;) { - var packet = createPacket(resolution, k, l); - k++; - return packet; - } - k = 0; - } - i = 0; - } - r = 0; - } - throw new Error('JPX Error: Out of packets'); - }; - } - function ResolutionLayerComponentPositionIterator(context) { - var siz = context.SIZ; - var tileIndex = context.currentTile.index; - var tile = context.tiles[tileIndex]; - var layersCount = tile.codingStyleDefaultParameters.layersCount; - var componentsCount = siz.Csiz; - var maxDecompositionLevelsCount = 0; - for (var q = 0; q < componentsCount; q++) { - maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, - tile.components[q].codingStyleParameters.decompositionLevelsCount); - } - - var r = 0, l = 0, i = 0, k = 0; - - this.nextPacket = function JpxImage_nextPacket() { - // Section B.12.1.2 Resolution-layer-component-position - for (; r <= maxDecompositionLevelsCount; r++) { - for (; l < layersCount; l++) { - for (; i < componentsCount; i++) { - var component = tile.components[i]; - if (r > component.codingStyleParameters.decompositionLevelsCount) { - continue; - } - - var resolution = component.resolutions[r]; - var numprecincts = resolution.precinctParameters.numprecincts; - for (; k < numprecincts;) { - var packet = createPacket(resolution, k, l); - k++; - return packet; - } - k = 0; - } - i = 0; - } - l = 0; - } - throw new Error('JPX Error: Out of packets'); - }; - } - function ResolutionPositionComponentLayerIterator(context) { - var siz = context.SIZ; - var tileIndex = context.currentTile.index; - var tile = context.tiles[tileIndex]; - var layersCount = tile.codingStyleDefaultParameters.layersCount; - var componentsCount = siz.Csiz; - var l, r, c, p; - var maxDecompositionLevelsCount = 0; - for (c = 0; c < componentsCount; c++) { - var component = tile.components[c]; - maxDecompositionLevelsCount = Math.max(maxDecompositionLevelsCount, - component.codingStyleParameters.decompositionLevelsCount); - } - var maxNumPrecinctsInLevel = new Int32Array( - maxDecompositionLevelsCount + 1); - for (r = 0; r <= maxDecompositionLevelsCount; ++r) { - var maxNumPrecincts = 0; - for (c = 0; c < componentsCount; ++c) { - var resolutions = tile.components[c].resolutions; - if (r < resolutions.length) { - maxNumPrecincts = Math.max(maxNumPrecincts, - resolutions[r].precinctParameters.numprecincts); - } - } - maxNumPrecinctsInLevel[r] = maxNumPrecincts; - } - l = 0; - r = 0; - c = 0; - p = 0; - - this.nextPacket = function JpxImage_nextPacket() { - // Section B.12.1.3 Resolution-position-component-layer - for (; r <= maxDecompositionLevelsCount; r++) { - for (; p < maxNumPrecinctsInLevel[r]; p++) { - for (; c < componentsCount; c++) { - var component = tile.components[c]; - if (r > component.codingStyleParameters.decompositionLevelsCount) { - continue; - } - var resolution = component.resolutions[r]; - var numprecincts = resolution.precinctParameters.numprecincts; - if (p >= numprecincts) { - continue; - } - for (; l < layersCount;) { - var packet = createPacket(resolution, p, l); - l++; - return packet; - } - l = 0; - } - c = 0; - } - p = 0; - } - throw new Error('JPX Error: Out of packets'); - }; - } - function PositionComponentResolutionLayerIterator(context) { - var siz = context.SIZ; - var tileIndex = context.currentTile.index; - var tile = context.tiles[tileIndex]; - var layersCount = tile.codingStyleDefaultParameters.layersCount; - var componentsCount = siz.Csiz; - var precinctsSizes = getPrecinctSizesInImageScale(tile); - var precinctsIterationSizes = precinctsSizes; - var l = 0, r = 0, c = 0, px = 0, py = 0; - - this.nextPacket = function JpxImage_nextPacket() { - // Section B.12.1.4 Position-component-resolution-layer - for (; py < precinctsIterationSizes.maxNumHigh; py++) { - for (; px < precinctsIterationSizes.maxNumWide; px++) { - for (; c < componentsCount; c++) { - var component = tile.components[c]; - var decompositionLevelsCount = - component.codingStyleParameters.decompositionLevelsCount; - for (; r <= decompositionLevelsCount; r++) { - var resolution = component.resolutions[r]; - var sizeInImageScale = - precinctsSizes.components[c].resolutions[r]; - var k = getPrecinctIndexIfExist( - px, - py, - sizeInImageScale, - precinctsIterationSizes, - resolution); - if (k === null) { - continue; - } - for (; l < layersCount;) { - var packet = createPacket(resolution, k, l); - l++; - return packet; - } - l = 0; - } - r = 0; - } - c = 0; - } - px = 0; - } - throw new Error('JPX Error: Out of packets'); - }; - } - function ComponentPositionResolutionLayerIterator(context) { - var siz = context.SIZ; - var tileIndex = context.currentTile.index; - var tile = context.tiles[tileIndex]; - var layersCount = tile.codingStyleDefaultParameters.layersCount; - var componentsCount = siz.Csiz; - var precinctsSizes = getPrecinctSizesInImageScale(tile); - var l = 0, r = 0, c = 0, px = 0, py = 0; - - this.nextPacket = function JpxImage_nextPacket() { - // Section B.12.1.5 Component-position-resolution-layer - for (; c < componentsCount; ++c) { - var component = tile.components[c]; - var precinctsIterationSizes = precinctsSizes.components[c]; - var decompositionLevelsCount = - component.codingStyleParameters.decompositionLevelsCount; - for (; py < precinctsIterationSizes.maxNumHigh; py++) { - for (; px < precinctsIterationSizes.maxNumWide; px++) { - for (; r <= decompositionLevelsCount; r++) { - var resolution = component.resolutions[r]; - var sizeInImageScale = precinctsIterationSizes.resolutions[r]; - var k = getPrecinctIndexIfExist( - px, - py, - sizeInImageScale, - precinctsIterationSizes, - resolution); - if (k === null) { - continue; - } - for (; l < layersCount;) { - var packet = createPacket(resolution, k, l); - l++; - return packet; - } - l = 0; - } - r = 0; - } - px = 0; - } - py = 0; - } - throw new Error('JPX Error: Out of packets'); - }; - } - function getPrecinctIndexIfExist( - pxIndex, pyIndex, sizeInImageScale, precinctIterationSizes, resolution) { - var posX = pxIndex * precinctIterationSizes.minWidth; - var posY = pyIndex * precinctIterationSizes.minHeight; - if (posX % sizeInImageScale.width !== 0 || - posY % sizeInImageScale.height !== 0) { - return null; - } - var startPrecinctRowIndex = - (posY / sizeInImageScale.width) * - resolution.precinctParameters.numprecinctswide; - return (posX / sizeInImageScale.height) + startPrecinctRowIndex; - } - function getPrecinctSizesInImageScale(tile) { - var componentsCount = tile.components.length; - var minWidth = Number.MAX_VALUE; - var minHeight = Number.MAX_VALUE; - var maxNumWide = 0; - var maxNumHigh = 0; - var sizePerComponent = new Array(componentsCount); - for (var c = 0; c < componentsCount; c++) { - var component = tile.components[c]; - var decompositionLevelsCount = - component.codingStyleParameters.decompositionLevelsCount; - var sizePerResolution = new Array(decompositionLevelsCount + 1); - var minWidthCurrentComponent = Number.MAX_VALUE; - var minHeightCurrentComponent = Number.MAX_VALUE; - var maxNumWideCurrentComponent = 0; - var maxNumHighCurrentComponent = 0; - var scale = 1; - for (var r = decompositionLevelsCount; r >= 0; --r) { - var resolution = component.resolutions[r]; - var widthCurrentResolution = - scale * resolution.precinctParameters.precinctWidth; - var heightCurrentResolution = - scale * resolution.precinctParameters.precinctHeight; - minWidthCurrentComponent = Math.min( - minWidthCurrentComponent, - widthCurrentResolution); - minHeightCurrentComponent = Math.min( - minHeightCurrentComponent, - heightCurrentResolution); - maxNumWideCurrentComponent = Math.max(maxNumWideCurrentComponent, - resolution.precinctParameters.numprecinctswide); - maxNumHighCurrentComponent = Math.max(maxNumHighCurrentComponent, - resolution.precinctParameters.numprecinctshigh); - sizePerResolution[r] = { - width: widthCurrentResolution, - height: heightCurrentResolution - }; - scale <<= 1; - } - minWidth = Math.min(minWidth, minWidthCurrentComponent); - minHeight = Math.min(minHeight, minHeightCurrentComponent); - maxNumWide = Math.max(maxNumWide, maxNumWideCurrentComponent); - maxNumHigh = Math.max(maxNumHigh, maxNumHighCurrentComponent); - sizePerComponent[c] = { - resolutions: sizePerResolution, - minWidth: minWidthCurrentComponent, - minHeight: minHeightCurrentComponent, - maxNumWide: maxNumWideCurrentComponent, - maxNumHigh: maxNumHighCurrentComponent - }; - } - return { - components: sizePerComponent, - minWidth: minWidth, - minHeight: minHeight, - maxNumWide: maxNumWide, - maxNumHigh: maxNumHigh - }; - } - function buildPackets(context) { - var siz = context.SIZ; - var tileIndex = context.currentTile.index; - var tile = context.tiles[tileIndex]; - var componentsCount = siz.Csiz; - // Creating resolutions and sub-bands for each component - for (var c = 0; c < componentsCount; c++) { - var component = tile.components[c]; - var decompositionLevelsCount = - component.codingStyleParameters.decompositionLevelsCount; - // Section B.5 Resolution levels and sub-bands - var resolutions = []; - var subbands = []; - for (var r = 0; r <= decompositionLevelsCount; r++) { - var blocksDimensions = getBlocksDimensions(context, component, r); - var resolution = {}; - var scale = 1 << (decompositionLevelsCount - r); - resolution.trx0 = Math.ceil(component.tcx0 / scale); - resolution.try0 = Math.ceil(component.tcy0 / scale); - resolution.trx1 = Math.ceil(component.tcx1 / scale); - resolution.try1 = Math.ceil(component.tcy1 / scale); - resolution.resLevel = r; - buildPrecincts(context, resolution, blocksDimensions); - resolutions.push(resolution); - - var subband; - if (r === 0) { - // one sub-band (LL) with last decomposition - subband = {}; - subband.type = 'LL'; - subband.tbx0 = Math.ceil(component.tcx0 / scale); - subband.tby0 = Math.ceil(component.tcy0 / scale); - subband.tbx1 = Math.ceil(component.tcx1 / scale); - subband.tby1 = Math.ceil(component.tcy1 / scale); - subband.resolution = resolution; - buildCodeblocks(context, subband, blocksDimensions); - subbands.push(subband); - resolution.subbands = [subband]; - } else { - var bscale = 1 << (decompositionLevelsCount - r + 1); - var resolutionSubbands = []; - // three sub-bands (HL, LH and HH) with rest of decompositions - subband = {}; - subband.type = 'HL'; - subband.tbx0 = Math.ceil(component.tcx0 / bscale - 0.5); - subband.tby0 = Math.ceil(component.tcy0 / bscale); - subband.tbx1 = Math.ceil(component.tcx1 / bscale - 0.5); - subband.tby1 = Math.ceil(component.tcy1 / bscale); - subband.resolution = resolution; - buildCodeblocks(context, subband, blocksDimensions); - subbands.push(subband); - resolutionSubbands.push(subband); - - subband = {}; - subband.type = 'LH'; - subband.tbx0 = Math.ceil(component.tcx0 / bscale); - subband.tby0 = Math.ceil(component.tcy0 / bscale - 0.5); - subband.tbx1 = Math.ceil(component.tcx1 / bscale); - subband.tby1 = Math.ceil(component.tcy1 / bscale - 0.5); - subband.resolution = resolution; - buildCodeblocks(context, subband, blocksDimensions); - subbands.push(subband); - resolutionSubbands.push(subband); - - subband = {}; - subband.type = 'HH'; - subband.tbx0 = Math.ceil(component.tcx0 / bscale - 0.5); - subband.tby0 = Math.ceil(component.tcy0 / bscale - 0.5); - subband.tbx1 = Math.ceil(component.tcx1 / bscale - 0.5); - subband.tby1 = Math.ceil(component.tcy1 / bscale - 0.5); - subband.resolution = resolution; - buildCodeblocks(context, subband, blocksDimensions); - subbands.push(subband); - resolutionSubbands.push(subband); - - resolution.subbands = resolutionSubbands; - } - } - component.resolutions = resolutions; - component.subbands = subbands; - } - // Generate the packets sequence - var progressionOrder = tile.codingStyleDefaultParameters.progressionOrder; - switch (progressionOrder) { - case 0: - tile.packetsIterator = - new LayerResolutionComponentPositionIterator(context); - break; - case 1: - tile.packetsIterator = - new ResolutionLayerComponentPositionIterator(context); - break; - case 2: - tile.packetsIterator = - new ResolutionPositionComponentLayerIterator(context); - break; - case 3: - tile.packetsIterator = - new PositionComponentResolutionLayerIterator(context); - break; - case 4: - tile.packetsIterator = - new ComponentPositionResolutionLayerIterator(context); - break; - default: - throw new Error('JPX Error: Unsupported progression order ' + - progressionOrder); - } - } - function parseTilePackets(context, data, offset, dataLength) { - var position = 0; - var buffer, bufferSize = 0, skipNextBit = false; - function readBits(count) { - while (bufferSize < count) { - var b = data[offset + position]; - position++; - if (skipNextBit) { - buffer = (buffer << 7) | b; - bufferSize += 7; - skipNextBit = false; - } else { - buffer = (buffer << 8) | b; - bufferSize += 8; - } - if (b === 0xFF) { - skipNextBit = true; - } - } - bufferSize -= count; - return (buffer >>> bufferSize) & ((1 << count) - 1); - } - function skipMarkerIfEqual(value) { - if (data[offset + position - 1] === 0xFF && - data[offset + position] === value) { - skipBytes(1); - return true; - } else if (data[offset + position] === 0xFF && - data[offset + position + 1] === value) { - skipBytes(2); - return true; - } - return false; - } - function skipBytes(count) { - position += count; - } - function alignToByte() { - bufferSize = 0; - if (skipNextBit) { - position++; - skipNextBit = false; - } - } - function readCodingpasses() { - if (readBits(1) === 0) { - return 1; - } - if (readBits(1) === 0) { - return 2; - } - var value = readBits(2); - if (value < 3) { - return value + 3; - } - value = readBits(5); - if (value < 31) { - return value + 6; - } - value = readBits(7); - return value + 37; - } - var tileIndex = context.currentTile.index; - var tile = context.tiles[tileIndex]; - var sopMarkerUsed = context.COD.sopMarkerUsed; - var ephMarkerUsed = context.COD.ephMarkerUsed; - var packetsIterator = tile.packetsIterator; - while (position < dataLength) { - alignToByte(); - if (sopMarkerUsed && skipMarkerIfEqual(0x91)) { - // Skip also marker segment length and packet sequence ID - skipBytes(4); - } - var packet = packetsIterator.nextPacket(); - if (!readBits(1)) { - continue; - } - var layerNumber = packet.layerNumber; - var queue = [], codeblock; - for (var i = 0, ii = packet.codeblocks.length; i < ii; i++) { - codeblock = packet.codeblocks[i]; - var precinct = codeblock.precinct; - var codeblockColumn = codeblock.cbx - precinct.cbxMin; - var codeblockRow = codeblock.cby - precinct.cbyMin; - var codeblockIncluded = false; - var firstTimeInclusion = false; - var valueReady; - if (codeblock['included'] !== undefined) { - codeblockIncluded = !!readBits(1); - } else { - // reading inclusion tree - precinct = codeblock.precinct; - var inclusionTree, zeroBitPlanesTree; - if (precinct['inclusionTree'] !== undefined) { - inclusionTree = precinct.inclusionTree; - } else { - // building inclusion and zero bit-planes trees - var width = precinct.cbxMax - precinct.cbxMin + 1; - var height = precinct.cbyMax - precinct.cbyMin + 1; - inclusionTree = new InclusionTree(width, height, layerNumber); - zeroBitPlanesTree = new TagTree(width, height); - precinct.inclusionTree = inclusionTree; - precinct.zeroBitPlanesTree = zeroBitPlanesTree; - } - - if (inclusionTree.reset(codeblockColumn, codeblockRow, layerNumber)) { - while (true) { - if (readBits(1)) { - valueReady = !inclusionTree.nextLevel(); - if (valueReady) { - codeblock.included = true; - codeblockIncluded = firstTimeInclusion = true; - break; - } - } else { - inclusionTree.incrementValue(layerNumber); - break; - } - } - } - } - if (!codeblockIncluded) { - continue; - } - if (firstTimeInclusion) { - zeroBitPlanesTree = precinct.zeroBitPlanesTree; - zeroBitPlanesTree.reset(codeblockColumn, codeblockRow); - while (true) { - if (readBits(1)) { - valueReady = !zeroBitPlanesTree.nextLevel(); - if (valueReady) { - break; - } - } else { - zeroBitPlanesTree.incrementValue(); - } - } - codeblock.zeroBitPlanes = zeroBitPlanesTree.value; - } - var codingpasses = readCodingpasses(); - while (readBits(1)) { - codeblock.Lblock++; - } - var codingpassesLog2 = log2(codingpasses); - // rounding down log2 - var bits = ((codingpasses < (1 << codingpassesLog2)) ? - codingpassesLog2 - 1 : codingpassesLog2) + codeblock.Lblock; - var codedDataLength = readBits(bits); - queue.push({ - codeblock: codeblock, - codingpasses: codingpasses, - dataLength: codedDataLength - }); - } - alignToByte(); - if (ephMarkerUsed) { - skipMarkerIfEqual(0x92); - } - while (queue.length > 0) { - var packetItem = queue.shift(); - codeblock = packetItem.codeblock; - if (codeblock['data'] === undefined) { - codeblock.data = []; - } - codeblock.data.push({ - data: data, - start: offset + position, - end: offset + position + packetItem.dataLength, - codingpasses: packetItem.codingpasses - }); - position += packetItem.dataLength; - } - } - return position; - } - function copyCoefficients(coefficients, levelWidth, levelHeight, subband, - delta, mb, reversible, segmentationSymbolUsed) { - var x0 = subband.tbx0; - var y0 = subband.tby0; - var width = subband.tbx1 - subband.tbx0; - var codeblocks = subband.codeblocks; - var right = subband.type.charAt(0) === 'H' ? 1 : 0; - var bottom = subband.type.charAt(1) === 'H' ? levelWidth : 0; - - for (var i = 0, ii = codeblocks.length; i < ii; ++i) { - var codeblock = codeblocks[i]; - var blockWidth = codeblock.tbx1_ - codeblock.tbx0_; - var blockHeight = codeblock.tby1_ - codeblock.tby0_; - if (blockWidth === 0 || blockHeight === 0) { - continue; - } - if (codeblock['data'] === undefined) { - continue; - } - - var bitModel, currentCodingpassType; - bitModel = new BitModel(blockWidth, blockHeight, codeblock.subbandType, - codeblock.zeroBitPlanes, mb); - currentCodingpassType = 2; // first bit plane starts from cleanup - - // collect data - var data = codeblock.data, totalLength = 0, codingpasses = 0; - var j, jj, dataItem; - for (j = 0, jj = data.length; j < jj; j++) { - dataItem = data[j]; - totalLength += dataItem.end - dataItem.start; - codingpasses += dataItem.codingpasses; - } - var encodedData = new Uint8Array(totalLength); - var position = 0; - for (j = 0, jj = data.length; j < jj; j++) { - dataItem = data[j]; - var chunk = dataItem.data.subarray(dataItem.start, dataItem.end); - encodedData.set(chunk, position); - position += chunk.length; - } - // decoding the item - var decoder = new ArithmeticDecoder(encodedData, 0, totalLength); - bitModel.setDecoder(decoder); - - for (j = 0; j < codingpasses; j++) { - switch (currentCodingpassType) { - case 0: - bitModel.runSignificancePropogationPass(); - break; - case 1: - bitModel.runMagnitudeRefinementPass(); - break; - case 2: - bitModel.runCleanupPass(); - if (segmentationSymbolUsed) { - bitModel.checkSegmentationSymbol(); - } - break; - } - currentCodingpassType = (currentCodingpassType + 1) % 3; - } - - var offset = (codeblock.tbx0_ - x0) + (codeblock.tby0_ - y0) * width; - var sign = bitModel.coefficentsSign; - var magnitude = bitModel.coefficentsMagnitude; - var bitsDecoded = bitModel.bitsDecoded; - var magnitudeCorrection = reversible ? 0 : 0.5; - var k, n, nb; - position = 0; - // Do the interleaving of Section F.3.3 here, so we do not need - // to copy later. LL level is not interleaved, just copied. - var interleave = (subband.type !== 'LL'); - for (j = 0; j < blockHeight; j++) { - var row = (offset / width) | 0; // row in the non-interleaved subband - var levelOffset = 2 * row * (levelWidth - width) + right + bottom; - for (k = 0; k < blockWidth; k++) { - n = magnitude[position]; - if (n !== 0) { - n = (n + magnitudeCorrection) * delta; - if (sign[position] !== 0) { - n = -n; - } - nb = bitsDecoded[position]; - var pos = interleave ? (levelOffset + (offset << 1)) : offset; - if (reversible && (nb >= mb)) { - coefficients[pos] = n; - } else { - coefficients[pos] = n * (1 << (mb - nb)); - } - } - offset++; - position++; - } - offset += width - blockWidth; - } - } - } - function transformTile(context, tile, c) { - var component = tile.components[c]; - var codingStyleParameters = component.codingStyleParameters; - var quantizationParameters = component.quantizationParameters; - var decompositionLevelsCount = - codingStyleParameters.decompositionLevelsCount; - var spqcds = quantizationParameters.SPqcds; - var scalarExpounded = quantizationParameters.scalarExpounded; - var guardBits = quantizationParameters.guardBits; - var segmentationSymbolUsed = codingStyleParameters.segmentationSymbolUsed; - var precision = context.components[c].precision; - - var reversible = codingStyleParameters.reversibleTransformation; - var transform = (reversible ? new ReversibleTransform() : - new IrreversibleTransform()); - - var subbandCoefficients = []; - var b = 0; - for (var i = 0; i <= decompositionLevelsCount; i++) { - var resolution = component.resolutions[i]; - - var width = resolution.trx1 - resolution.trx0; - var height = resolution.try1 - resolution.try0; - // Allocate space for the whole sublevel. - var coefficients = new Float32Array(width * height); - - for (var j = 0, jj = resolution.subbands.length; j < jj; j++) { - var mu, epsilon; - if (!scalarExpounded) { - // formula E-5 - mu = spqcds[0].mu; - epsilon = spqcds[0].epsilon + (i > 0 ? 1 - i : 0); - } else { - mu = spqcds[b].mu; - epsilon = spqcds[b].epsilon; - b++; - } - - var subband = resolution.subbands[j]; - var gainLog2 = SubbandsGainLog2[subband.type]; - - // calulate quantization coefficient (Section E.1.1.1) - var delta = (reversible ? 1 : - Math.pow(2, precision + gainLog2 - epsilon) * (1 + mu / 2048)); - var mb = (guardBits + epsilon - 1); - - // In the first resolution level, copyCoefficients will fill the - // whole array with coefficients. In the succeding passes, - // copyCoefficients will consecutively fill in the values that belong - // to the interleaved positions of the HL, LH, and HH coefficients. - // The LL coefficients will then be interleaved in Transform.iterate(). - copyCoefficients(coefficients, width, height, subband, delta, mb, - reversible, segmentationSymbolUsed); - } - subbandCoefficients.push({ - width: width, - height: height, - items: coefficients - }); - } - - var result = transform.calculate(subbandCoefficients, - component.tcx0, component.tcy0); - return { - left: component.tcx0, - top: component.tcy0, - width: result.width, - height: result.height, - items: result.items - }; - } - function transformComponents(context) { - var siz = context.SIZ; - var components = context.components; - var componentsCount = siz.Csiz; - var resultImages = []; - for (var i = 0, ii = context.tiles.length; i < ii; i++) { - var tile = context.tiles[i]; - var transformedTiles = []; - var c; - for (c = 0; c < componentsCount; c++) { - transformedTiles[c] = transformTile(context, tile, c); - } - var tile0 = transformedTiles[0]; - var out = new Uint8Array(tile0.items.length * componentsCount); - var result = { - left: tile0.left, - top: tile0.top, - width: tile0.width, - height: tile0.height, - items: out - }; - - // Section G.2.2 Inverse multi component transform - var shift, offset, max, min, maxK; - var pos = 0, j, jj, y0, y1, y2, r, g, b, k, val; - if (tile.codingStyleDefaultParameters.multipleComponentTransform) { - var fourComponents = componentsCount === 4; - var y0items = transformedTiles[0].items; - var y1items = transformedTiles[1].items; - var y2items = transformedTiles[2].items; - var y3items = fourComponents ? transformedTiles[3].items : null; - - // HACK: The multiple component transform formulas below assume that - // all components have the same precision. With this in mind, we - // compute shift and offset only once. - shift = components[0].precision - 8; - offset = (128 << shift) + 0.5; - max = 255 * (1 << shift); - maxK = max * 0.5; - min = -maxK; - - var component0 = tile.components[0]; - var alpha01 = componentsCount - 3; - jj = y0items.length; - if (!component0.codingStyleParameters.reversibleTransformation) { - // inverse irreversible multiple component transform - for (j = 0; j < jj; j++, pos += alpha01) { - y0 = y0items[j] + offset; - y1 = y1items[j]; - y2 = y2items[j]; - r = y0 + 1.402 * y2; - g = y0 - 0.34413 * y1 - 0.71414 * y2; - b = y0 + 1.772 * y1; - out[pos++] = r <= 0 ? 0 : r >= max ? 255 : r >> shift; - out[pos++] = g <= 0 ? 0 : g >= max ? 255 : g >> shift; - out[pos++] = b <= 0 ? 0 : b >= max ? 255 : b >> shift; - } - } else { - // inverse reversible multiple component transform - for (j = 0; j < jj; j++, pos += alpha01) { - y0 = y0items[j] + offset; - y1 = y1items[j]; - y2 = y2items[j]; - g = y0 - ((y2 + y1) >> 2); - r = g + y2; - b = g + y1; - out[pos++] = r <= 0 ? 0 : r >= max ? 255 : r >> shift; - out[pos++] = g <= 0 ? 0 : g >= max ? 255 : g >> shift; - out[pos++] = b <= 0 ? 0 : b >= max ? 255 : b >> shift; - } - } - if (fourComponents) { - for (j = 0, pos = 3; j < jj; j++, pos += 4) { - k = y3items[j]; - out[pos] = k <= min ? 0 : k >= maxK ? 255 : (k + offset) >> shift; - } - } - } else { // no multi-component transform - for (c = 0; c < componentsCount; c++) { - var items = transformedTiles[c].items; - shift = components[c].precision - 8; - offset = (128 << shift) + 0.5; - max = (127.5 * (1 << shift)); - min = -max; - for (pos = c, j = 0, jj = items.length; j < jj; j++) { - val = items[j]; - out[pos] = val <= min ? 0 : - val >= max ? 255 : (val + offset) >> shift; - pos += componentsCount; - } - } - } - resultImages.push(result); - } - return resultImages; - } - function initializeTile(context, tileIndex) { - var siz = context.SIZ; - var componentsCount = siz.Csiz; - var tile = context.tiles[tileIndex]; - for (var c = 0; c < componentsCount; c++) { - var component = tile.components[c]; - var qcdOrQcc = (context.currentTile.QCC[c] !== undefined ? - context.currentTile.QCC[c] : context.currentTile.QCD); - component.quantizationParameters = qcdOrQcc; - var codOrCoc = (context.currentTile.COC[c] !== undefined ? - context.currentTile.COC[c] : context.currentTile.COD); - component.codingStyleParameters = codOrCoc; - } - tile.codingStyleDefaultParameters = context.currentTile.COD; - } - - // Section B.10.2 Tag trees - var TagTree = (function TagTreeClosure() { - function TagTree(width, height) { - var levelsLength = log2(Math.max(width, height)) + 1; - this.levels = []; - for (var i = 0; i < levelsLength; i++) { - var level = { - width: width, - height: height, - items: [] - }; - this.levels.push(level); - width = Math.ceil(width / 2); - height = Math.ceil(height / 2); - } - } - TagTree.prototype = { - reset: function TagTree_reset(i, j) { - var currentLevel = 0, value = 0, level; - while (currentLevel < this.levels.length) { - level = this.levels[currentLevel]; - var index = i + j * level.width; - if (level.items[index] !== undefined) { - value = level.items[index]; - break; - } - level.index = index; - i >>= 1; - j >>= 1; - currentLevel++; - } - currentLevel--; - level = this.levels[currentLevel]; - level.items[level.index] = value; - this.currentLevel = currentLevel; - delete this.value; - }, - incrementValue: function TagTree_incrementValue() { - var level = this.levels[this.currentLevel]; - level.items[level.index]++; - }, - nextLevel: function TagTree_nextLevel() { - var currentLevel = this.currentLevel; - var level = this.levels[currentLevel]; - var value = level.items[level.index]; - currentLevel--; - if (currentLevel < 0) { - this.value = value; - return false; - } - - this.currentLevel = currentLevel; - level = this.levels[currentLevel]; - level.items[level.index] = value; - return true; - } - }; - return TagTree; - })(); - - var InclusionTree = (function InclusionTreeClosure() { - function InclusionTree(width, height, defaultValue) { - var levelsLength = log2(Math.max(width, height)) + 1; - this.levels = []; - for (var i = 0; i < levelsLength; i++) { - var items = new Uint8Array(width * height); - for (var j = 0, jj = items.length; j < jj; j++) { - items[j] = defaultValue; - } - - var level = { - width: width, - height: height, - items: items - }; - this.levels.push(level); - - width = Math.ceil(width / 2); - height = Math.ceil(height / 2); - } - } - InclusionTree.prototype = { - reset: function InclusionTree_reset(i, j, stopValue) { - var currentLevel = 0; - while (currentLevel < this.levels.length) { - var level = this.levels[currentLevel]; - var index = i + j * level.width; - level.index = index; - var value = level.items[index]; - - if (value === 0xFF) { - break; - } - - if (value > stopValue) { - this.currentLevel = currentLevel; - // already know about this one, propagating the value to top levels - this.propagateValues(); - return false; - } - - i >>= 1; - j >>= 1; - currentLevel++; - } - this.currentLevel = currentLevel - 1; - return true; - }, - incrementValue: function InclusionTree_incrementValue(stopValue) { - var level = this.levels[this.currentLevel]; - level.items[level.index] = stopValue + 1; - this.propagateValues(); - }, - propagateValues: function InclusionTree_propagateValues() { - var levelIndex = this.currentLevel; - var level = this.levels[levelIndex]; - var currentValue = level.items[level.index]; - while (--levelIndex >= 0) { - level = this.levels[levelIndex]; - level.items[level.index] = currentValue; - } - }, - nextLevel: function InclusionTree_nextLevel() { - var currentLevel = this.currentLevel; - var level = this.levels[currentLevel]; - var value = level.items[level.index]; - level.items[level.index] = 0xFF; - currentLevel--; - if (currentLevel < 0) { - return false; - } - - this.currentLevel = currentLevel; - level = this.levels[currentLevel]; - level.items[level.index] = value; - return true; - } - }; - return InclusionTree; - })(); - - // Section D. Coefficient bit modeling - var BitModel = (function BitModelClosure() { - var UNIFORM_CONTEXT = 17; - var RUNLENGTH_CONTEXT = 18; - // Table D-1 - // The index is binary presentation: 0dddvvhh, ddd - sum of Di (0..4), - // vv - sum of Vi (0..2), and hh - sum of Hi (0..2) - var LLAndLHContextsLabel = new Uint8Array([ - 0, 5, 8, 0, 3, 7, 8, 0, 4, 7, 8, 0, 0, 0, 0, 0, 1, 6, 8, 0, 3, 7, 8, 0, 4, - 7, 8, 0, 0, 0, 0, 0, 2, 6, 8, 0, 3, 7, 8, 0, 4, 7, 8, 0, 0, 0, 0, 0, 2, 6, - 8, 0, 3, 7, 8, 0, 4, 7, 8, 0, 0, 0, 0, 0, 2, 6, 8, 0, 3, 7, 8, 0, 4, 7, 8 - ]); - var HLContextLabel = new Uint8Array([ - 0, 3, 4, 0, 5, 7, 7, 0, 8, 8, 8, 0, 0, 0, 0, 0, 1, 3, 4, 0, 6, 7, 7, 0, 8, - 8, 8, 0, 0, 0, 0, 0, 2, 3, 4, 0, 6, 7, 7, 0, 8, 8, 8, 0, 0, 0, 0, 0, 2, 3, - 4, 0, 6, 7, 7, 0, 8, 8, 8, 0, 0, 0, 0, 0, 2, 3, 4, 0, 6, 7, 7, 0, 8, 8, 8 - ]); - var HHContextLabel = new Uint8Array([ - 0, 1, 2, 0, 1, 2, 2, 0, 2, 2, 2, 0, 0, 0, 0, 0, 3, 4, 5, 0, 4, 5, 5, 0, 5, - 5, 5, 0, 0, 0, 0, 0, 6, 7, 7, 0, 7, 7, 7, 0, 7, 7, 7, 0, 0, 0, 0, 0, 8, 8, - 8, 0, 8, 8, 8, 0, 8, 8, 8, 0, 0, 0, 0, 0, 8, 8, 8, 0, 8, 8, 8, 0, 8, 8, 8 - ]); - - function BitModel(width, height, subband, zeroBitPlanes, mb) { - this.width = width; - this.height = height; - - this.contextLabelTable = (subband === 'HH' ? HHContextLabel : - (subband === 'HL' ? HLContextLabel : LLAndLHContextsLabel)); - - var coefficientCount = width * height; - - // coefficients outside the encoding region treated as insignificant - // add border state cells for significanceState - this.neighborsSignificance = new Uint8Array(coefficientCount); - this.coefficentsSign = new Uint8Array(coefficientCount); - this.coefficentsMagnitude = mb > 14 ? new Uint32Array(coefficientCount) : - mb > 6 ? new Uint16Array(coefficientCount) : - new Uint8Array(coefficientCount); - this.processingFlags = new Uint8Array(coefficientCount); - - var bitsDecoded = new Uint8Array(coefficientCount); - if (zeroBitPlanes !== 0) { - for (var i = 0; i < coefficientCount; i++) { - bitsDecoded[i] = zeroBitPlanes; - } - } - this.bitsDecoded = bitsDecoded; - - this.reset(); - } - - BitModel.prototype = { - setDecoder: function BitModel_setDecoder(decoder) { - this.decoder = decoder; - }, - reset: function BitModel_reset() { - // We have 17 contexts that are accessed via context labels, - // plus the uniform and runlength context. - this.contexts = new Int8Array(19); - - // Contexts are packed into 1 byte: - // highest 7 bits carry the index, lowest bit carries mps - this.contexts[0] = (4 << 1) | 0; - this.contexts[UNIFORM_CONTEXT] = (46 << 1) | 0; - this.contexts[RUNLENGTH_CONTEXT] = (3 << 1) | 0; - }, - setNeighborsSignificance: - function BitModel_setNeighborsSignificance(row, column, index) { - var neighborsSignificance = this.neighborsSignificance; - var width = this.width, height = this.height; - var left = (column > 0); - var right = (column + 1 < width); - var i; - - if (row > 0) { - i = index - width; - if (left) { - neighborsSignificance[i - 1] += 0x10; - } - if (right) { - neighborsSignificance[i + 1] += 0x10; - } - neighborsSignificance[i] += 0x04; - } - - if (row + 1 < height) { - i = index + width; - if (left) { - neighborsSignificance[i - 1] += 0x10; - } - if (right) { - neighborsSignificance[i + 1] += 0x10; - } - neighborsSignificance[i] += 0x04; - } - - if (left) { - neighborsSignificance[index - 1] += 0x01; - } - if (right) { - neighborsSignificance[index + 1] += 0x01; - } - neighborsSignificance[index] |= 0x80; - }, - runSignificancePropogationPass: - function BitModel_runSignificancePropogationPass() { - var decoder = this.decoder; - var width = this.width, height = this.height; - var coefficentsMagnitude = this.coefficentsMagnitude; - var coefficentsSign = this.coefficentsSign; - var neighborsSignificance = this.neighborsSignificance; - var processingFlags = this.processingFlags; - var contexts = this.contexts; - var labels = this.contextLabelTable; - var bitsDecoded = this.bitsDecoded; - var processedInverseMask = ~1; - var processedMask = 1; - var firstMagnitudeBitMask = 2; - - for (var i0 = 0; i0 < height; i0 += 4) { - for (var j = 0; j < width; j++) { - var index = i0 * width + j; - for (var i1 = 0; i1 < 4; i1++, index += width) { - var i = i0 + i1; - if (i >= height) { - break; - } - // clear processed flag first - processingFlags[index] &= processedInverseMask; - - if (coefficentsMagnitude[index] || - !neighborsSignificance[index]) { - continue; - } - - var contextLabel = labels[neighborsSignificance[index]]; - var decision = decoder.readBit(contexts, contextLabel); - if (decision) { - var sign = this.decodeSignBit(i, j, index); - coefficentsSign[index] = sign; - coefficentsMagnitude[index] = 1; - this.setNeighborsSignificance(i, j, index); - processingFlags[index] |= firstMagnitudeBitMask; - } - bitsDecoded[index]++; - processingFlags[index] |= processedMask; - } - } - } - }, - decodeSignBit: function BitModel_decodeSignBit(row, column, index) { - var width = this.width, height = this.height; - var coefficentsMagnitude = this.coefficentsMagnitude; - var coefficentsSign = this.coefficentsSign; - var contribution, sign0, sign1, significance1; - var contextLabel, decoded; - - // calculate horizontal contribution - significance1 = (column > 0 && coefficentsMagnitude[index - 1] !== 0); - if (column + 1 < width && coefficentsMagnitude[index + 1] !== 0) { - sign1 = coefficentsSign[index + 1]; - if (significance1) { - sign0 = coefficentsSign[index - 1]; - contribution = 1 - sign1 - sign0; - } else { - contribution = 1 - sign1 - sign1; - } - } else if (significance1) { - sign0 = coefficentsSign[index - 1]; - contribution = 1 - sign0 - sign0; - } else { - contribution = 0; - } - var horizontalContribution = 3 * contribution; - - // calculate vertical contribution and combine with the horizontal - significance1 = (row > 0 && coefficentsMagnitude[index - width] !== 0); - if (row + 1 < height && coefficentsMagnitude[index + width] !== 0) { - sign1 = coefficentsSign[index + width]; - if (significance1) { - sign0 = coefficentsSign[index - width]; - contribution = 1 - sign1 - sign0 + horizontalContribution; - } else { - contribution = 1 - sign1 - sign1 + horizontalContribution; - } - } else if (significance1) { - sign0 = coefficentsSign[index - width]; - contribution = 1 - sign0 - sign0 + horizontalContribution; - } else { - contribution = horizontalContribution; - } - - if (contribution >= 0) { - contextLabel = 9 + contribution; - decoded = this.decoder.readBit(this.contexts, contextLabel); - } else { - contextLabel = 9 - contribution; - decoded = this.decoder.readBit(this.contexts, contextLabel) ^ 1; - } - return decoded; - }, - runMagnitudeRefinementPass: - function BitModel_runMagnitudeRefinementPass() { - var decoder = this.decoder; - var width = this.width, height = this.height; - var coefficentsMagnitude = this.coefficentsMagnitude; - var neighborsSignificance = this.neighborsSignificance; - var contexts = this.contexts; - var bitsDecoded = this.bitsDecoded; - var processingFlags = this.processingFlags; - var processedMask = 1; - var firstMagnitudeBitMask = 2; - var length = width * height; - var width4 = width * 4; - - for (var index0 = 0, indexNext; index0 < length; index0 = indexNext) { - indexNext = Math.min(length, index0 + width4); - for (var j = 0; j < width; j++) { - for (var index = index0 + j; index < indexNext; index += width) { - - // significant but not those that have just become - if (!coefficentsMagnitude[index] || - (processingFlags[index] & processedMask) !== 0) { - continue; - } - - var contextLabel = 16; - if ((processingFlags[index] & firstMagnitudeBitMask) !== 0) { - processingFlags[index] ^= firstMagnitudeBitMask; - // first refinement - var significance = neighborsSignificance[index] & 127; - contextLabel = significance === 0 ? 15 : 14; - } - - var bit = decoder.readBit(contexts, contextLabel); - coefficentsMagnitude[index] = - (coefficentsMagnitude[index] << 1) | bit; - bitsDecoded[index]++; - processingFlags[index] |= processedMask; - } - } - } - }, - runCleanupPass: function BitModel_runCleanupPass() { - var decoder = this.decoder; - var width = this.width, height = this.height; - var neighborsSignificance = this.neighborsSignificance; - var coefficentsMagnitude = this.coefficentsMagnitude; - var coefficentsSign = this.coefficentsSign; - var contexts = this.contexts; - var labels = this.contextLabelTable; - var bitsDecoded = this.bitsDecoded; - var processingFlags = this.processingFlags; - var processedMask = 1; - var firstMagnitudeBitMask = 2; - var oneRowDown = width; - var twoRowsDown = width * 2; - var threeRowsDown = width * 3; - var iNext; - for (var i0 = 0; i0 < height; i0 = iNext) { - iNext = Math.min(i0 + 4, height); - var indexBase = i0 * width; - var checkAllEmpty = i0 + 3 < height; - for (var j = 0; j < width; j++) { - var index0 = indexBase + j; - // using the property: labels[neighborsSignificance[index]] === 0 - // when neighborsSignificance[index] === 0 - var allEmpty = (checkAllEmpty && - processingFlags[index0] === 0 && - processingFlags[index0 + oneRowDown] === 0 && - processingFlags[index0 + twoRowsDown] === 0 && - processingFlags[index0 + threeRowsDown] === 0 && - neighborsSignificance[index0] === 0 && - neighborsSignificance[index0 + oneRowDown] === 0 && - neighborsSignificance[index0 + twoRowsDown] === 0 && - neighborsSignificance[index0 + threeRowsDown] === 0); - var i1 = 0, index = index0; - var i = i0, sign; - if (allEmpty) { - var hasSignificantCoefficent = - decoder.readBit(contexts, RUNLENGTH_CONTEXT); - if (!hasSignificantCoefficent) { - bitsDecoded[index0]++; - bitsDecoded[index0 + oneRowDown]++; - bitsDecoded[index0 + twoRowsDown]++; - bitsDecoded[index0 + threeRowsDown]++; - continue; // next column - } - i1 = (decoder.readBit(contexts, UNIFORM_CONTEXT) << 1) | - decoder.readBit(contexts, UNIFORM_CONTEXT); - if (i1 !== 0) { - i = i0 + i1; - index += i1 * width; - } - - sign = this.decodeSignBit(i, j, index); - coefficentsSign[index] = sign; - coefficentsMagnitude[index] = 1; - this.setNeighborsSignificance(i, j, index); - processingFlags[index] |= firstMagnitudeBitMask; - - index = index0; - for (var i2 = i0; i2 <= i; i2++, index += width) { - bitsDecoded[index]++; - } - - i1++; - } - for (i = i0 + i1; i < iNext; i++, index += width) { - if (coefficentsMagnitude[index] || - (processingFlags[index] & processedMask) !== 0) { - continue; - } - - var contextLabel = labels[neighborsSignificance[index]]; - var decision = decoder.readBit(contexts, contextLabel); - if (decision === 1) { - sign = this.decodeSignBit(i, j, index); - coefficentsSign[index] = sign; - coefficentsMagnitude[index] = 1; - this.setNeighborsSignificance(i, j, index); - processingFlags[index] |= firstMagnitudeBitMask; - } - bitsDecoded[index]++; - } - } - } - }, - checkSegmentationSymbol: function BitModel_checkSegmentationSymbol() { - var decoder = this.decoder; - var contexts = this.contexts; - var symbol = (decoder.readBit(contexts, UNIFORM_CONTEXT) << 3) | - (decoder.readBit(contexts, UNIFORM_CONTEXT) << 2) | - (decoder.readBit(contexts, UNIFORM_CONTEXT) << 1) | - decoder.readBit(contexts, UNIFORM_CONTEXT); - if (symbol !== 0xA) { - throw new Error('JPX Error: Invalid segmentation symbol'); - } - } - }; - - return BitModel; - })(); - - // Section F, Discrete wavelet transformation - var Transform = (function TransformClosure() { - function Transform() {} - - Transform.prototype.calculate = - function transformCalculate(subbands, u0, v0) { - var ll = subbands[0]; - for (var i = 1, ii = subbands.length; i < ii; i++) { - ll = this.iterate(ll, subbands[i], u0, v0); - } - return ll; - }; - Transform.prototype.extend = function extend(buffer, offset, size) { - // Section F.3.7 extending... using max extension of 4 - var i1 = offset - 1, j1 = offset + 1; - var i2 = offset + size - 2, j2 = offset + size; - buffer[i1--] = buffer[j1++]; - buffer[j2++] = buffer[i2--]; - buffer[i1--] = buffer[j1++]; - buffer[j2++] = buffer[i2--]; - buffer[i1--] = buffer[j1++]; - buffer[j2++] = buffer[i2--]; - buffer[i1] = buffer[j1]; - buffer[j2] = buffer[i2]; - }; - Transform.prototype.iterate = function Transform_iterate(ll, hl_lh_hh, - u0, v0) { - var llWidth = ll.width, llHeight = ll.height, llItems = ll.items; - var width = hl_lh_hh.width; - var height = hl_lh_hh.height; - var items = hl_lh_hh.items; - var i, j, k, l, u, v; - - // Interleave LL according to Section F.3.3 - for (k = 0, i = 0; i < llHeight; i++) { - l = i * 2 * width; - for (j = 0; j < llWidth; j++, k++, l += 2) { - items[l] = llItems[k]; - } - } - // The LL band is not needed anymore. - llItems = ll.items = null; - - var bufferPadding = 4; - var rowBuffer = new Float32Array(width + 2 * bufferPadding); - - // Section F.3.4 HOR_SR - if (width === 1) { - // if width = 1, when u0 even keep items as is, when odd divide by 2 - if ((u0 & 1) !== 0) { - for (v = 0, k = 0; v < height; v++, k += width) { - items[k] *= 0.5; - } - } - } else { - for (v = 0, k = 0; v < height; v++, k += width) { - rowBuffer.set(items.subarray(k, k + width), bufferPadding); - - this.extend(rowBuffer, bufferPadding, width); - this.filter(rowBuffer, bufferPadding, width); - - items.set( - rowBuffer.subarray(bufferPadding, bufferPadding + width), - k); - } - } - - // Accesses to the items array can take long, because it may not fit into - // CPU cache and has to be fetched from main memory. Since subsequent - // accesses to the items array are not local when reading columns, we - // have a cache miss every time. To reduce cache misses, get up to - // 'numBuffers' items at a time and store them into the individual - // buffers. The colBuffers should be small enough to fit into CPU cache. - var numBuffers = 16; - var colBuffers = []; - for (i = 0; i < numBuffers; i++) { - colBuffers.push(new Float32Array(height + 2 * bufferPadding)); - } - var b, currentBuffer = 0; - ll = bufferPadding + height; - - // Section F.3.5 VER_SR - if (height === 1) { - // if height = 1, when v0 even keep items as is, when odd divide by 2 - if ((v0 & 1) !== 0) { - for (u = 0; u < width; u++) { - items[u] *= 0.5; - } - } - } else { - for (u = 0; u < width; u++) { - // if we ran out of buffers, copy several image columns at once - if (currentBuffer === 0) { - numBuffers = Math.min(width - u, numBuffers); - for (k = u, l = bufferPadding; l < ll; k += width, l++) { - for (b = 0; b < numBuffers; b++) { - colBuffers[b][l] = items[k + b]; - } - } - currentBuffer = numBuffers; - } - - currentBuffer--; - var buffer = colBuffers[currentBuffer]; - this.extend(buffer, bufferPadding, height); - this.filter(buffer, bufferPadding, height); - - // If this is last buffer in this group of buffers, flush all buffers. - if (currentBuffer === 0) { - k = u - numBuffers + 1; - for (l = bufferPadding; l < ll; k += width, l++) { - for (b = 0; b < numBuffers; b++) { - items[k + b] = colBuffers[b][l]; - } - } - } - } - } - - return { - width: width, - height: height, - items: items - }; - }; - return Transform; - })(); - - // Section 3.8.2 Irreversible 9-7 filter - var IrreversibleTransform = (function IrreversibleTransformClosure() { - function IrreversibleTransform() { - Transform.call(this); - } - - IrreversibleTransform.prototype = Object.create(Transform.prototype); - IrreversibleTransform.prototype.filter = - function irreversibleTransformFilter(x, offset, length) { - var len = length >> 1; - offset = offset | 0; - var j, n, current, next; - - var alpha = -1.586134342059924; - var beta = -0.052980118572961; - var gamma = 0.882911075530934; - var delta = 0.443506852043971; - var K = 1.230174104914001; - var K_ = 1 / K; - - // step 1 is combined with step 3 - - // step 2 - j = offset - 3; - for (n = len + 4; n--; j += 2) { - x[j] *= K_; - } - - // step 1 & 3 - j = offset - 2; - current = delta * x[j -1]; - for (n = len + 3; n--; j += 2) { - next = delta * x[j + 1]; - x[j] = K * x[j] - current - next; - if (n--) { - j += 2; - current = delta * x[j + 1]; - x[j] = K * x[j] - current - next; - } else { - break; - } - } - - // step 4 - j = offset - 1; - current = gamma * x[j - 1]; - for (n = len + 2; n--; j += 2) { - next = gamma * x[j + 1]; - x[j] -= current + next; - if (n--) { - j += 2; - current = gamma * x[j + 1]; - x[j] -= current + next; - } else { - break; - } - } - - // step 5 - j = offset; - current = beta * x[j - 1]; - for (n = len + 1; n--; j += 2) { - next = beta * x[j + 1]; - x[j] -= current + next; - if (n--) { - j += 2; - current = beta * x[j + 1]; - x[j] -= current + next; - } else { - break; - } - } - - // step 6 - if (len !== 0) { - j = offset + 1; - current = alpha * x[j - 1]; - for (n = len; n--; j += 2) { - next = alpha * x[j + 1]; - x[j] -= current + next; - if (n--) { - j += 2; - current = alpha * x[j + 1]; - x[j] -= current + next; - } else { - break; - } - } - } - }; - - return IrreversibleTransform; - })(); - - // Section 3.8.1 Reversible 5-3 filter - var ReversibleTransform = (function ReversibleTransformClosure() { - function ReversibleTransform() { - Transform.call(this); - } - - ReversibleTransform.prototype = Object.create(Transform.prototype); - ReversibleTransform.prototype.filter = - function reversibleTransformFilter(x, offset, length) { - var len = length >> 1; - offset = offset | 0; - var j, n; - - for (j = offset, n = len + 1; n--; j += 2) { - x[j] -= (x[j - 1] + x[j + 1] + 2) >> 2; - } - - for (j = offset + 1, n = len; n--; j += 2) { - x[j] += (x[j - 1] + x[j + 1]) >> 1; - } - }; - - return ReversibleTransform; - })(); - - return JpxImage; -})(); - - -var Jbig2Image = (function Jbig2ImageClosure() { - // Utility data structures - function ContextCache() {} - - ContextCache.prototype = { - getContexts: function(id) { - if (id in this) { - return this[id]; - } - return (this[id] = new Int8Array(1 << 16)); - } - }; - - function DecodingContext(data, start, end) { - this.data = data; - this.start = start; - this.end = end; - } - - DecodingContext.prototype = { - get decoder() { - var decoder = new ArithmeticDecoder(this.data, this.start, this.end); - return shadow(this, 'decoder', decoder); - }, - get contextCache() { - var cache = new ContextCache(); - return shadow(this, 'contextCache', cache); - } - }; - - // Annex A. Arithmetic Integer Decoding Procedure - // A.2 Procedure for decoding values - function decodeInteger(contextCache, procedure, decoder) { - var contexts = contextCache.getContexts(procedure); - var prev = 1; - - function readBits(length) { - var v = 0; - for (var i = 0; i < length; i++) { - var bit = decoder.readBit(contexts, prev); - prev = (prev < 256 ? (prev << 1) | bit : - (((prev << 1) | bit) & 511) | 256); - v = (v << 1) | bit; - } - return v >>> 0; - } - - var sign = readBits(1); - var value = readBits(1) ? - (readBits(1) ? - (readBits(1) ? - (readBits(1) ? - (readBits(1) ? - (readBits(32) + 4436) : - readBits(12) + 340) : - readBits(8) + 84) : - readBits(6) + 20) : - readBits(4) + 4) : - readBits(2); - return (sign === 0 ? value : (value > 0 ? -value : null)); - } - - // A.3 The IAID decoding procedure - function decodeIAID(contextCache, decoder, codeLength) { - var contexts = contextCache.getContexts('IAID'); - - var prev = 1; - for (var i = 0; i < codeLength; i++) { - var bit = decoder.readBit(contexts, prev); - prev = (prev << 1) | bit; - } - if (codeLength < 31) { - return prev & ((1 << codeLength) - 1); - } - return prev & 0x7FFFFFFF; - } - - // 7.3 Segment types - var SegmentTypes = [ - 'SymbolDictionary', null, null, null, 'IntermediateTextRegion', null, - 'ImmediateTextRegion', 'ImmediateLosslessTextRegion', null, null, null, - null, null, null, null, null, 'patternDictionary', null, null, null, - 'IntermediateHalftoneRegion', null, 'ImmediateHalftoneRegion', - 'ImmediateLosslessHalftoneRegion', null, null, null, null, null, null, null, - null, null, null, null, null, 'IntermediateGenericRegion', null, - 'ImmediateGenericRegion', 'ImmediateLosslessGenericRegion', - 'IntermediateGenericRefinementRegion', null, - 'ImmediateGenericRefinementRegion', - 'ImmediateLosslessGenericRefinementRegion', null, null, null, null, - 'PageInformation', 'EndOfPage', 'EndOfStripe', 'EndOfFile', 'Profiles', - 'Tables', null, null, null, null, null, null, null, null, - 'Extension' - ]; - - var CodingTemplates = [ - [{x: -1, y: -2}, {x: 0, y: -2}, {x: 1, y: -2}, {x: -2, y: -1}, - {x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1}, {x: 2, y: -1}, - {x: -4, y: 0}, {x: -3, y: 0}, {x: -2, y: 0}, {x: -1, y: 0}], - [{x: -1, y: -2}, {x: 0, y: -2}, {x: 1, y: -2}, {x: 2, y: -2}, - {x: -2, y: -1}, {x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1}, - {x: 2, y: -1}, {x: -3, y: 0}, {x: -2, y: 0}, {x: -1, y: 0}], - [{x: -1, y: -2}, {x: 0, y: -2}, {x: 1, y: -2}, {x: -2, y: -1}, - {x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1}, {x: -2, y: 0}, - {x: -1, y: 0}], - [{x: -3, y: -1}, {x: -2, y: -1}, {x: -1, y: -1}, {x: 0, y: -1}, - {x: 1, y: -1}, {x: -4, y: 0}, {x: -3, y: 0}, {x: -2, y: 0}, {x: -1, y: 0}] - ]; - - var RefinementTemplates = [ - { - coding: [{x: 0, y: -1}, {x: 1, y: -1}, {x: -1, y: 0}], - reference: [{x: 0, y: -1}, {x: 1, y: -1}, {x: -1, y: 0}, {x: 0, y: 0}, - {x: 1, y: 0}, {x: -1, y: 1}, {x: 0, y: 1}, {x: 1, y: 1}] - }, - { - coding: [{x: -1, y: -1}, {x: 0, y: -1}, {x: 1, y: -1}, {x: -1, y: 0}], - reference: [{x: 0, y: -1}, {x: -1, y: 0}, {x: 0, y: 0}, {x: 1, y: 0}, - {x: 0, y: 1}, {x: 1, y: 1}] - } - ]; - - // See 6.2.5.7 Decoding the bitmap. - var ReusedContexts = [ - 0x9B25, // 10011 0110010 0101 - 0x0795, // 0011 110010 101 - 0x00E5, // 001 11001 01 - 0x0195 // 011001 0101 - ]; - - var RefinementReusedContexts = [ - 0x0020, // '000' + '0' (coding) + '00010000' + '0' (reference) - 0x0008 // '0000' + '001000' - ]; - - function decodeBitmapTemplate0(width, height, decodingContext) { - var decoder = decodingContext.decoder; - var contexts = decodingContext.contextCache.getContexts('GB'); - var contextLabel, i, j, pixel, row, row1, row2, bitmap = []; - - // ...ooooo.... - // ..ooooooo... Context template for current pixel (X) - // .ooooX...... (concatenate values of 'o'-pixels to get contextLabel) - var OLD_PIXEL_MASK = 0x7BF7; // 01111 0111111 0111 - - for (i = 0; i < height; i++) { - row = bitmap[i] = new Uint8Array(width); - row1 = (i < 1) ? row : bitmap[i - 1]; - row2 = (i < 2) ? row : bitmap[i - 2]; - - // At the beginning of each row: - // Fill contextLabel with pixels that are above/right of (X) - contextLabel = (row2[0] << 13) | (row2[1] << 12) | (row2[2] << 11) | - (row1[0] << 7) | (row1[1] << 6) | (row1[2] << 5) | - (row1[3] << 4); - - for (j = 0; j < width; j++) { - row[j] = pixel = decoder.readBit(contexts, contextLabel); - - // At each pixel: Clear contextLabel pixels that are shifted - // out of the context, then add new ones. - contextLabel = ((contextLabel & OLD_PIXEL_MASK) << 1) | - (j + 3 < width ? row2[j + 3] << 11 : 0) | - (j + 4 < width ? row1[j + 4] << 4 : 0) | pixel; - } - } - - return bitmap; - } - - // 6.2 Generic Region Decoding Procedure - function decodeBitmap(mmr, width, height, templateIndex, prediction, skip, at, - decodingContext) { - if (mmr) { - error('JBIG2 error: MMR encoding is not supported'); - } - - // Use optimized version for the most common case - if (templateIndex === 0 && !skip && !prediction && at.length === 4 && - at[0].x === 3 && at[0].y === -1 && at[1].x === -3 && at[1].y === -1 && - at[2].x === 2 && at[2].y === -2 && at[3].x === -2 && at[3].y === -2) { - return decodeBitmapTemplate0(width, height, decodingContext); - } - - var useskip = !!skip; - var template = CodingTemplates[templateIndex].concat(at); - - // Sorting is non-standard, and it is not required. But sorting increases - // the number of template bits that can be reused from the previous - // contextLabel in the main loop. - template.sort(function (a, b) { - return (a.y - b.y) || (a.x - b.x); - }); - - var templateLength = template.length; - var templateX = new Int8Array(templateLength); - var templateY = new Int8Array(templateLength); - var changingTemplateEntries = []; - var reuseMask = 0, minX = 0, maxX = 0, minY = 0; - var c, k; - - for (k = 0; k < templateLength; k++) { - templateX[k] = template[k].x; - templateY[k] = template[k].y; - minX = Math.min(minX, template[k].x); - maxX = Math.max(maxX, template[k].x); - minY = Math.min(minY, template[k].y); - // Check if the template pixel appears in two consecutive context labels, - // so it can be reused. Otherwise, we add it to the list of changing - // template entries. - if (k < templateLength - 1 && - template[k].y === template[k + 1].y && - template[k].x === template[k + 1].x - 1) { - reuseMask |= 1 << (templateLength - 1 - k); - } else { - changingTemplateEntries.push(k); - } - } - var changingEntriesLength = changingTemplateEntries.length; - - var changingTemplateX = new Int8Array(changingEntriesLength); - var changingTemplateY = new Int8Array(changingEntriesLength); - var changingTemplateBit = new Uint16Array(changingEntriesLength); - for (c = 0; c < changingEntriesLength; c++) { - k = changingTemplateEntries[c]; - changingTemplateX[c] = template[k].x; - changingTemplateY[c] = template[k].y; - changingTemplateBit[c] = 1 << (templateLength - 1 - k); - } - - // Get the safe bounding box edges from the width, height, minX, maxX, minY - var sbb_left = -minX; - var sbb_top = -minY; - var sbb_right = width - maxX; - - var pseudoPixelContext = ReusedContexts[templateIndex]; - var row = new Uint8Array(width); - var bitmap = []; - - var decoder = decodingContext.decoder; - var contexts = decodingContext.contextCache.getContexts('GB'); - - var ltp = 0, j, i0, j0, contextLabel = 0, bit, shift; - for (var i = 0; i < height; i++) { - if (prediction) { - var sltp = decoder.readBit(contexts, pseudoPixelContext); - ltp ^= sltp; - if (ltp) { - bitmap.push(row); // duplicate previous row - continue; - } - } - row = new Uint8Array(row); - bitmap.push(row); - for (j = 0; j < width; j++) { - if (useskip && skip[i][j]) { - row[j] = 0; - continue; - } - // Are we in the middle of a scanline, so we can reuse contextLabel - // bits? - if (j >= sbb_left && j < sbb_right && i >= sbb_top) { - // If yes, we can just shift the bits that are reusable and only - // fetch the remaining ones. - contextLabel = (contextLabel << 1) & reuseMask; - for (k = 0; k < changingEntriesLength; k++) { - i0 = i + changingTemplateY[k]; - j0 = j + changingTemplateX[k]; - bit = bitmap[i0][j0]; - if (bit) { - bit = changingTemplateBit[k]; - contextLabel |= bit; - } - } - } else { - // compute the contextLabel from scratch - contextLabel = 0; - shift = templateLength - 1; - for (k = 0; k < templateLength; k++, shift--) { - j0 = j + templateX[k]; - if (j0 >= 0 && j0 < width) { - i0 = i + templateY[k]; - if (i0 >= 0) { - bit = bitmap[i0][j0]; - if (bit) { - contextLabel |= bit << shift; - } - } - } - } - } - var pixel = decoder.readBit(contexts, contextLabel); - row[j] = pixel; - } - } - return bitmap; - } - - // 6.3.2 Generic Refinement Region Decoding Procedure - function decodeRefinement(width, height, templateIndex, referenceBitmap, - offsetX, offsetY, prediction, at, - decodingContext) { - var codingTemplate = RefinementTemplates[templateIndex].coding; - if (templateIndex === 0) { - codingTemplate = codingTemplate.concat([at[0]]); - } - var codingTemplateLength = codingTemplate.length; - var codingTemplateX = new Int32Array(codingTemplateLength); - var codingTemplateY = new Int32Array(codingTemplateLength); - var k; - for (k = 0; k < codingTemplateLength; k++) { - codingTemplateX[k] = codingTemplate[k].x; - codingTemplateY[k] = codingTemplate[k].y; - } - - var referenceTemplate = RefinementTemplates[templateIndex].reference; - if (templateIndex === 0) { - referenceTemplate = referenceTemplate.concat([at[1]]); - } - var referenceTemplateLength = referenceTemplate.length; - var referenceTemplateX = new Int32Array(referenceTemplateLength); - var referenceTemplateY = new Int32Array(referenceTemplateLength); - for (k = 0; k < referenceTemplateLength; k++) { - referenceTemplateX[k] = referenceTemplate[k].x; - referenceTemplateY[k] = referenceTemplate[k].y; - } - var referenceWidth = referenceBitmap[0].length; - var referenceHeight = referenceBitmap.length; - - var pseudoPixelContext = RefinementReusedContexts[templateIndex]; - var bitmap = []; - - var decoder = decodingContext.decoder; - var contexts = decodingContext.contextCache.getContexts('GR'); - - var ltp = 0; - for (var i = 0; i < height; i++) { - if (prediction) { - var sltp = decoder.readBit(contexts, pseudoPixelContext); - ltp ^= sltp; - if (ltp) { - error('JBIG2 error: prediction is not supported'); - } - } - var row = new Uint8Array(width); - bitmap.push(row); - for (var j = 0; j < width; j++) { - var i0, j0; - var contextLabel = 0; - for (k = 0; k < codingTemplateLength; k++) { - i0 = i + codingTemplateY[k]; - j0 = j + codingTemplateX[k]; - if (i0 < 0 || j0 < 0 || j0 >= width) { - contextLabel <<= 1; // out of bound pixel - } else { - contextLabel = (contextLabel << 1) | bitmap[i0][j0]; - } - } - for (k = 0; k < referenceTemplateLength; k++) { - i0 = i + referenceTemplateY[k] + offsetY; - j0 = j + referenceTemplateX[k] + offsetX; - if (i0 < 0 || i0 >= referenceHeight || j0 < 0 || - j0 >= referenceWidth) { - contextLabel <<= 1; // out of bound pixel - } else { - contextLabel = (contextLabel << 1) | referenceBitmap[i0][j0]; - } - } - var pixel = decoder.readBit(contexts, contextLabel); - row[j] = pixel; - } - } - - return bitmap; - } - - // 6.5.5 Decoding the symbol dictionary - function decodeSymbolDictionary(huffman, refinement, symbols, - numberOfNewSymbols, numberOfExportedSymbols, - huffmanTables, templateIndex, at, - refinementTemplateIndex, refinementAt, - decodingContext) { - if (huffman) { - error('JBIG2 error: huffman is not supported'); - } - - var newSymbols = []; - var currentHeight = 0; - var symbolCodeLength = log2(symbols.length + numberOfNewSymbols); - - var decoder = decodingContext.decoder; - var contextCache = decodingContext.contextCache; - - while (newSymbols.length < numberOfNewSymbols) { - var deltaHeight = decodeInteger(contextCache, 'IADH', decoder); // 6.5.6 - currentHeight += deltaHeight; - var currentWidth = 0; - var totalWidth = 0; - while (true) { - var deltaWidth = decodeInteger(contextCache, 'IADW', decoder); // 6.5.7 - if (deltaWidth === null) { - break; // OOB - } - currentWidth += deltaWidth; - totalWidth += currentWidth; - var bitmap; - if (refinement) { - // 6.5.8.2 Refinement/aggregate-coded symbol bitmap - var numberOfInstances = decodeInteger(contextCache, 'IAAI', decoder); - if (numberOfInstances > 1) { - bitmap = decodeTextRegion(huffman, refinement, - currentWidth, currentHeight, 0, - numberOfInstances, 1, //strip size - symbols.concat(newSymbols), - symbolCodeLength, - 0, //transposed - 0, //ds offset - 1, //top left 7.4.3.1.1 - 0, //OR operator - huffmanTables, - refinementTemplateIndex, refinementAt, - decodingContext); - } else { - var symbolId = decodeIAID(contextCache, decoder, symbolCodeLength); - var rdx = decodeInteger(contextCache, 'IARDX', decoder); // 6.4.11.3 - var rdy = decodeInteger(contextCache, 'IARDY', decoder); // 6.4.11.4 - var symbol = (symbolId < symbols.length ? symbols[symbolId] : - newSymbols[symbolId - symbols.length]); - bitmap = decodeRefinement(currentWidth, currentHeight, - refinementTemplateIndex, symbol, rdx, rdy, false, refinementAt, - decodingContext); - } - } else { - // 6.5.8.1 Direct-coded symbol bitmap - bitmap = decodeBitmap(false, currentWidth, currentHeight, - templateIndex, false, null, at, decodingContext); - } - newSymbols.push(bitmap); - } - } - // 6.5.10 Exported symbols - var exportedSymbols = []; - var flags = [], currentFlag = false; - var totalSymbolsLength = symbols.length + numberOfNewSymbols; - while (flags.length < totalSymbolsLength) { - var runLength = decodeInteger(contextCache, 'IAEX', decoder); - while (runLength--) { - flags.push(currentFlag); - } - currentFlag = !currentFlag; - } - for (var i = 0, ii = symbols.length; i < ii; i++) { - if (flags[i]) { - exportedSymbols.push(symbols[i]); - } - } - for (var j = 0; j < numberOfNewSymbols; i++, j++) { - if (flags[i]) { - exportedSymbols.push(newSymbols[j]); - } - } - return exportedSymbols; - } - - function decodeTextRegion(huffman, refinement, width, height, - defaultPixelValue, numberOfSymbolInstances, - stripSize, inputSymbols, symbolCodeLength, - transposed, dsOffset, referenceCorner, - combinationOperator, huffmanTables, - refinementTemplateIndex, refinementAt, - decodingContext) { - if (huffman) { - error('JBIG2 error: huffman is not supported'); - } - - // Prepare bitmap - var bitmap = []; - var i, row; - for (i = 0; i < height; i++) { - row = new Uint8Array(width); - if (defaultPixelValue) { - for (var j = 0; j < width; j++) { - row[j] = defaultPixelValue; - } - } - bitmap.push(row); - } - - var decoder = decodingContext.decoder; - var contextCache = decodingContext.contextCache; - var stripT = -decodeInteger(contextCache, 'IADT', decoder); // 6.4.6 - var firstS = 0; - i = 0; - while (i < numberOfSymbolInstances) { - var deltaT = decodeInteger(contextCache, 'IADT', decoder); // 6.4.6 - stripT += deltaT; - - var deltaFirstS = decodeInteger(contextCache, 'IAFS', decoder); // 6.4.7 - firstS += deltaFirstS; - var currentS = firstS; - do { - var currentT = (stripSize === 1 ? 0 : - decodeInteger(contextCache, 'IAIT', decoder)); // 6.4.9 - var t = stripSize * stripT + currentT; - var symbolId = decodeIAID(contextCache, decoder, symbolCodeLength); - var applyRefinement = (refinement && - decodeInteger(contextCache, 'IARI', decoder)); - var symbolBitmap = inputSymbols[symbolId]; - var symbolWidth = symbolBitmap[0].length; - var symbolHeight = symbolBitmap.length; - if (applyRefinement) { - var rdw = decodeInteger(contextCache, 'IARDW', decoder); // 6.4.11.1 - var rdh = decodeInteger(contextCache, 'IARDH', decoder); // 6.4.11.2 - var rdx = decodeInteger(contextCache, 'IARDX', decoder); // 6.4.11.3 - var rdy = decodeInteger(contextCache, 'IARDY', decoder); // 6.4.11.4 - symbolWidth += rdw; - symbolHeight += rdh; - symbolBitmap = decodeRefinement(symbolWidth, symbolHeight, - refinementTemplateIndex, symbolBitmap, (rdw >> 1) + rdx, - (rdh >> 1) + rdy, false, refinementAt, - decodingContext); - } - var offsetT = t - ((referenceCorner & 1) ? 0 : symbolHeight); - var offsetS = currentS - ((referenceCorner & 2) ? symbolWidth : 0); - var s2, t2, symbolRow; - if (transposed) { - // Place Symbol Bitmap from T1,S1 - for (s2 = 0; s2 < symbolHeight; s2++) { - row = bitmap[offsetS + s2]; - if (!row) { - continue; - } - symbolRow = symbolBitmap[s2]; - // To ignore Parts of Symbol bitmap which goes - // outside bitmap region - var maxWidth = Math.min(width - offsetT, symbolWidth); - switch (combinationOperator) { - case 0: // OR - for (t2 = 0; t2 < maxWidth; t2++) { - row[offsetT + t2] |= symbolRow[t2]; - } - break; - case 2: // XOR - for (t2 = 0; t2 < maxWidth; t2++) { - row[offsetT + t2] ^= symbolRow[t2]; - } - break; - default: - error('JBIG2 error: operator ' + combinationOperator + - ' is not supported'); - } - } - currentS += symbolHeight - 1; - } else { - for (t2 = 0; t2 < symbolHeight; t2++) { - row = bitmap[offsetT + t2]; - if (!row) { - continue; - } - symbolRow = symbolBitmap[t2]; - switch (combinationOperator) { - case 0: // OR - for (s2 = 0; s2 < symbolWidth; s2++) { - row[offsetS + s2] |= symbolRow[s2]; - } - break; - case 2: // XOR - for (s2 = 0; s2 < symbolWidth; s2++) { - row[offsetS + s2] ^= symbolRow[s2]; - } - break; - default: - error('JBIG2 error: operator ' + combinationOperator + - ' is not supported'); - } - } - currentS += symbolWidth - 1; - } - i++; - var deltaS = decodeInteger(contextCache, 'IADS', decoder); // 6.4.8 - if (deltaS === null) { - break; // OOB - } - currentS += deltaS + dsOffset; - } while (true); - } - return bitmap; - } - - function readSegmentHeader(data, start) { - var segmentHeader = {}; - segmentHeader.number = readUint32(data, start); - var flags = data[start + 4]; - var segmentType = flags & 0x3F; - if (!SegmentTypes[segmentType]) { - error('JBIG2 error: invalid segment type: ' + segmentType); - } - segmentHeader.type = segmentType; - segmentHeader.typeName = SegmentTypes[segmentType]; - segmentHeader.deferredNonRetain = !!(flags & 0x80); - - var pageAssociationFieldSize = !!(flags & 0x40); - var referredFlags = data[start + 5]; - var referredToCount = (referredFlags >> 5) & 7; - var retainBits = [referredFlags & 31]; - var position = start + 6; - if (referredFlags === 7) { - referredToCount = readUint32(data, position - 1) & 0x1FFFFFFF; - position += 3; - var bytes = (referredToCount + 7) >> 3; - retainBits[0] = data[position++]; - while (--bytes > 0) { - retainBits.push(data[position++]); - } - } else if (referredFlags === 5 || referredFlags === 6) { - error('JBIG2 error: invalid referred-to flags'); - } - - segmentHeader.retainBits = retainBits; - var referredToSegmentNumberSize = (segmentHeader.number <= 256 ? 1 : - (segmentHeader.number <= 65536 ? 2 : 4)); - var referredTo = []; - var i, ii; - for (i = 0; i < referredToCount; i++) { - var number = (referredToSegmentNumberSize === 1 ? data[position] : - (referredToSegmentNumberSize === 2 ? readUint16(data, position) : - readUint32(data, position))); - referredTo.push(number); - position += referredToSegmentNumberSize; - } - segmentHeader.referredTo = referredTo; - if (!pageAssociationFieldSize) { - segmentHeader.pageAssociation = data[position++]; - } else { - segmentHeader.pageAssociation = readUint32(data, position); - position += 4; - } - segmentHeader.length = readUint32(data, position); - position += 4; - - if (segmentHeader.length === 0xFFFFFFFF) { - // 7.2.7 Segment data length, unknown segment length - if (segmentType === 38) { // ImmediateGenericRegion - var genericRegionInfo = readRegionSegmentInformation(data, position); - var genericRegionSegmentFlags = data[position + - RegionSegmentInformationFieldLength]; - var genericRegionMmr = !!(genericRegionSegmentFlags & 1); - // searching for the segment end - var searchPatternLength = 6; - var searchPattern = new Uint8Array(searchPatternLength); - if (!genericRegionMmr) { - searchPattern[0] = 0xFF; - searchPattern[1] = 0xAC; - } - searchPattern[2] = (genericRegionInfo.height >>> 24) & 0xFF; - searchPattern[3] = (genericRegionInfo.height >> 16) & 0xFF; - searchPattern[4] = (genericRegionInfo.height >> 8) & 0xFF; - searchPattern[5] = genericRegionInfo.height & 0xFF; - for (i = position, ii = data.length; i < ii; i++) { - var j = 0; - while (j < searchPatternLength && searchPattern[j] === data[i + j]) { - j++; - } - if (j === searchPatternLength) { - segmentHeader.length = i + searchPatternLength; - break; - } - } - if (segmentHeader.length === 0xFFFFFFFF) { - error('JBIG2 error: segment end was not found'); - } - } else { - error('JBIG2 error: invalid unknown segment length'); - } - } - segmentHeader.headerEnd = position; - return segmentHeader; - } - - function readSegments(header, data, start, end) { - var segments = []; - var position = start; - while (position < end) { - var segmentHeader = readSegmentHeader(data, position); - position = segmentHeader.headerEnd; - var segment = { - header: segmentHeader, - data: data - }; - if (!header.randomAccess) { - segment.start = position; - position += segmentHeader.length; - segment.end = position; - } - segments.push(segment); - if (segmentHeader.type === 51) { - break; // end of file is found - } - } - if (header.randomAccess) { - for (var i = 0, ii = segments.length; i < ii; i++) { - segments[i].start = position; - position += segments[i].header.length; - segments[i].end = position; - } - } - return segments; - } - - // 7.4.1 Region segment information field - function readRegionSegmentInformation(data, start) { - return { - width: readUint32(data, start), - height: readUint32(data, start + 4), - x: readUint32(data, start + 8), - y: readUint32(data, start + 12), - combinationOperator: data[start + 16] & 7 - }; - } - var RegionSegmentInformationFieldLength = 17; - - function processSegment(segment, visitor) { - var header = segment.header; - - var data = segment.data, position = segment.start, end = segment.end; - var args, at, i, atLength; - switch (header.type) { - case 0: // SymbolDictionary - // 7.4.2 Symbol dictionary segment syntax - var dictionary = {}; - var dictionaryFlags = readUint16(data, position); // 7.4.2.1.1 - dictionary.huffman = !!(dictionaryFlags & 1); - dictionary.refinement = !!(dictionaryFlags & 2); - dictionary.huffmanDHSelector = (dictionaryFlags >> 2) & 3; - dictionary.huffmanDWSelector = (dictionaryFlags >> 4) & 3; - dictionary.bitmapSizeSelector = (dictionaryFlags >> 6) & 1; - dictionary.aggregationInstancesSelector = (dictionaryFlags >> 7) & 1; - dictionary.bitmapCodingContextUsed = !!(dictionaryFlags & 256); - dictionary.bitmapCodingContextRetained = !!(dictionaryFlags & 512); - dictionary.template = (dictionaryFlags >> 10) & 3; - dictionary.refinementTemplate = (dictionaryFlags >> 12) & 1; - position += 2; - if (!dictionary.huffman) { - atLength = dictionary.template === 0 ? 4 : 1; - at = []; - for (i = 0; i < atLength; i++) { - at.push({ - x: readInt8(data, position), - y: readInt8(data, position + 1) - }); - position += 2; - } - dictionary.at = at; - } - if (dictionary.refinement && !dictionary.refinementTemplate) { - at = []; - for (i = 0; i < 2; i++) { - at.push({ - x: readInt8(data, position), - y: readInt8(data, position + 1) - }); - position += 2; - } - dictionary.refinementAt = at; - } - dictionary.numberOfExportedSymbols = readUint32(data, position); - position += 4; - dictionary.numberOfNewSymbols = readUint32(data, position); - position += 4; - args = [dictionary, header.number, header.referredTo, - data, position, end]; - break; - case 6: // ImmediateTextRegion - case 7: // ImmediateLosslessTextRegion - var textRegion = {}; - textRegion.info = readRegionSegmentInformation(data, position); - position += RegionSegmentInformationFieldLength; - var textRegionSegmentFlags = readUint16(data, position); - position += 2; - textRegion.huffman = !!(textRegionSegmentFlags & 1); - textRegion.refinement = !!(textRegionSegmentFlags & 2); - textRegion.stripSize = 1 << ((textRegionSegmentFlags >> 2) & 3); - textRegion.referenceCorner = (textRegionSegmentFlags >> 4) & 3; - textRegion.transposed = !!(textRegionSegmentFlags & 64); - textRegion.combinationOperator = (textRegionSegmentFlags >> 7) & 3; - textRegion.defaultPixelValue = (textRegionSegmentFlags >> 9) & 1; - textRegion.dsOffset = (textRegionSegmentFlags << 17) >> 27; - textRegion.refinementTemplate = (textRegionSegmentFlags >> 15) & 1; - if (textRegion.huffman) { - var textRegionHuffmanFlags = readUint16(data, position); - position += 2; - textRegion.huffmanFS = (textRegionHuffmanFlags) & 3; - textRegion.huffmanDS = (textRegionHuffmanFlags >> 2) & 3; - textRegion.huffmanDT = (textRegionHuffmanFlags >> 4) & 3; - textRegion.huffmanRefinementDW = (textRegionHuffmanFlags >> 6) & 3; - textRegion.huffmanRefinementDH = (textRegionHuffmanFlags >> 8) & 3; - textRegion.huffmanRefinementDX = (textRegionHuffmanFlags >> 10) & 3; - textRegion.huffmanRefinementDY = (textRegionHuffmanFlags >> 12) & 3; - textRegion.huffmanRefinementSizeSelector = - !!(textRegionHuffmanFlags & 14); - } - if (textRegion.refinement && !textRegion.refinementTemplate) { - at = []; - for (i = 0; i < 2; i++) { - at.push({ - x: readInt8(data, position), - y: readInt8(data, position + 1) - }); - position += 2; - } - textRegion.refinementAt = at; - } - textRegion.numberOfSymbolInstances = readUint32(data, position); - position += 4; - // TODO 7.4.3.1.7 Symbol ID Huffman table decoding - if (textRegion.huffman) { - error('JBIG2 error: huffman is not supported'); - } - args = [textRegion, header.referredTo, data, position, end]; - break; - case 38: // ImmediateGenericRegion - case 39: // ImmediateLosslessGenericRegion - var genericRegion = {}; - genericRegion.info = readRegionSegmentInformation(data, position); - position += RegionSegmentInformationFieldLength; - var genericRegionSegmentFlags = data[position++]; - genericRegion.mmr = !!(genericRegionSegmentFlags & 1); - genericRegion.template = (genericRegionSegmentFlags >> 1) & 3; - genericRegion.prediction = !!(genericRegionSegmentFlags & 8); - if (!genericRegion.mmr) { - atLength = genericRegion.template === 0 ? 4 : 1; - at = []; - for (i = 0; i < atLength; i++) { - at.push({ - x: readInt8(data, position), - y: readInt8(data, position + 1) - }); - position += 2; - } - genericRegion.at = at; - } - args = [genericRegion, data, position, end]; - break; - case 48: // PageInformation - var pageInfo = { - width: readUint32(data, position), - height: readUint32(data, position + 4), - resolutionX: readUint32(data, position + 8), - resolutionY: readUint32(data, position + 12) - }; - if (pageInfo.height === 0xFFFFFFFF) { - delete pageInfo.height; - } - var pageSegmentFlags = data[position + 16]; - var pageStripingInformatiom = readUint16(data, position + 17); - pageInfo.lossless = !!(pageSegmentFlags & 1); - pageInfo.refinement = !!(pageSegmentFlags & 2); - pageInfo.defaultPixelValue = (pageSegmentFlags >> 2) & 1; - pageInfo.combinationOperator = (pageSegmentFlags >> 3) & 3; - pageInfo.requiresBuffer = !!(pageSegmentFlags & 32); - pageInfo.combinationOperatorOverride = !!(pageSegmentFlags & 64); - args = [pageInfo]; - break; - case 49: // EndOfPage - break; - case 50: // EndOfStripe - break; - case 51: // EndOfFile - break; - case 62: // 7.4.15 defines 2 extension types which - // are comments and can be ignored. - break; - default: - error('JBIG2 error: segment type ' + header.typeName + '(' + - header.type + ') is not implemented'); - } - var callbackName = 'on' + header.typeName; - if (callbackName in visitor) { - visitor[callbackName].apply(visitor, args); - } - } - - function processSegments(segments, visitor) { - for (var i = 0, ii = segments.length; i < ii; i++) { - processSegment(segments[i], visitor); - } - } - - function parseJbig2(data, start, end) { - var position = start; - if (data[position] !== 0x97 || data[position + 1] !== 0x4A || - data[position + 2] !== 0x42 || data[position + 3] !== 0x32 || - data[position + 4] !== 0x0D || data[position + 5] !== 0x0A || - data[position + 6] !== 0x1A || data[position + 7] !== 0x0A) { - error('JBIG2 error: invalid header'); - } - var header = {}; - position += 8; - var flags = data[position++]; - header.randomAccess = !(flags & 1); - if (!(flags & 2)) { - header.numberOfPages = readUint32(data, position); - position += 4; - } - var segments = readSegments(header, data, position, end); - error('Not implemented'); - // processSegments(segments, new SimpleSegmentVisitor()); - } - - function parseJbig2Chunks(chunks) { - var visitor = new SimpleSegmentVisitor(); - for (var i = 0, ii = chunks.length; i < ii; i++) { - var chunk = chunks[i]; - var segments = readSegments({}, chunk.data, chunk.start, chunk.end); - processSegments(segments, visitor); - } - return visitor.buffer; - } - - function SimpleSegmentVisitor() {} - - SimpleSegmentVisitor.prototype = { - onPageInformation: function SimpleSegmentVisitor_onPageInformation(info) { - this.currentPageInfo = info; - var rowSize = (info.width + 7) >> 3; - var buffer = new Uint8Array(rowSize * info.height); - // The contents of ArrayBuffers are initialized to 0. - // Fill the buffer with 0xFF only if info.defaultPixelValue is set - if (info.defaultPixelValue) { - for (var i = 0, ii = buffer.length; i < ii; i++) { - buffer[i] = 0xFF; - } - } - this.buffer = buffer; - }, - drawBitmap: function SimpleSegmentVisitor_drawBitmap(regionInfo, bitmap) { - var pageInfo = this.currentPageInfo; - var width = regionInfo.width, height = regionInfo.height; - var rowSize = (pageInfo.width + 7) >> 3; - var combinationOperator = pageInfo.combinationOperatorOverride ? - regionInfo.combinationOperator : pageInfo.combinationOperator; - var buffer = this.buffer; - var mask0 = 128 >> (regionInfo.x & 7); - var offset0 = regionInfo.y * rowSize + (regionInfo.x >> 3); - var i, j, mask, offset; - switch (combinationOperator) { - case 0: // OR - for (i = 0; i < height; i++) { - mask = mask0; - offset = offset0; - for (j = 0; j < width; j++) { - if (bitmap[i][j]) { - buffer[offset] |= mask; - } - mask >>= 1; - if (!mask) { - mask = 128; - offset++; - } - } - offset0 += rowSize; - } - break; - case 2: // XOR - for (i = 0; i < height; i++) { - mask = mask0; - offset = offset0; - for (j = 0; j < width; j++) { - if (bitmap[i][j]) { - buffer[offset] ^= mask; - } - mask >>= 1; - if (!mask) { - mask = 128; - offset++; - } - } - offset0 += rowSize; - } - break; - default: - error('JBIG2 error: operator ' + combinationOperator + - ' is not supported'); - } - }, - onImmediateGenericRegion: - function SimpleSegmentVisitor_onImmediateGenericRegion(region, data, - start, end) { - var regionInfo = region.info; - var decodingContext = new DecodingContext(data, start, end); - var bitmap = decodeBitmap(region.mmr, regionInfo.width, regionInfo.height, - region.template, region.prediction, null, - region.at, decodingContext); - this.drawBitmap(regionInfo, bitmap); - }, - onImmediateLosslessGenericRegion: - function SimpleSegmentVisitor_onImmediateLosslessGenericRegion() { - this.onImmediateGenericRegion.apply(this, arguments); - }, - onSymbolDictionary: - function SimpleSegmentVisitor_onSymbolDictionary(dictionary, - currentSegment, - referredSegments, - data, start, end) { - var huffmanTables; - if (dictionary.huffman) { - error('JBIG2 error: huffman is not supported'); - } - - // Combines exported symbols from all referred segments - var symbols = this.symbols; - if (!symbols) { - this.symbols = symbols = {}; - } - - var inputSymbols = []; - for (var i = 0, ii = referredSegments.length; i < ii; i++) { - inputSymbols = inputSymbols.concat(symbols[referredSegments[i]]); - } - - var decodingContext = new DecodingContext(data, start, end); - symbols[currentSegment] = decodeSymbolDictionary(dictionary.huffman, - dictionary.refinement, inputSymbols, dictionary.numberOfNewSymbols, - dictionary.numberOfExportedSymbols, huffmanTables, - dictionary.template, dictionary.at, - dictionary.refinementTemplate, dictionary.refinementAt, - decodingContext); - }, - onImmediateTextRegion: - function SimpleSegmentVisitor_onImmediateTextRegion(region, - referredSegments, - data, start, end) { - var regionInfo = region.info; - var huffmanTables; - - // Combines exported symbols from all referred segments - var symbols = this.symbols; - var inputSymbols = []; - for (var i = 0, ii = referredSegments.length; i < ii; i++) { - inputSymbols = inputSymbols.concat(symbols[referredSegments[i]]); - } - var symbolCodeLength = log2(inputSymbols.length); - - var decodingContext = new DecodingContext(data, start, end); - var bitmap = decodeTextRegion(region.huffman, region.refinement, - regionInfo.width, regionInfo.height, region.defaultPixelValue, - region.numberOfSymbolInstances, region.stripSize, inputSymbols, - symbolCodeLength, region.transposed, region.dsOffset, - region.referenceCorner, region.combinationOperator, huffmanTables, - region.refinementTemplate, region.refinementAt, decodingContext); - this.drawBitmap(regionInfo, bitmap); - }, - onImmediateLosslessTextRegion: - function SimpleSegmentVisitor_onImmediateLosslessTextRegion() { - this.onImmediateTextRegion.apply(this, arguments); - } - }; - - function Jbig2Image() {} - - Jbig2Image.prototype = { - parseChunks: function Jbig2Image_parseChunks(chunks) { - return parseJbig2Chunks(chunks); - } - }; - - return Jbig2Image; -})(); - - -var bidi = PDFJS.bidi = (function bidiClosure() { - // Character types for symbols from 0000 to 00FF. - var baseTypes = [ - 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'S', 'B', 'S', 'WS', - 'B', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', - 'BN', 'BN', 'B', 'B', 'B', 'S', 'WS', 'ON', 'ON', 'ET', 'ET', 'ET', 'ON', - 'ON', 'ON', 'ON', 'ON', 'ON', 'CS', 'ON', 'CS', 'ON', 'EN', 'EN', 'EN', - 'EN', 'EN', 'EN', 'EN', 'EN', 'EN', 'EN', 'ON', 'ON', 'ON', 'ON', 'ON', - 'ON', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', - 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'ON', 'ON', - 'ON', 'ON', 'ON', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', - 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', - 'L', 'ON', 'ON', 'ON', 'ON', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'B', 'BN', - 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', - 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', 'BN', - 'BN', 'CS', 'ON', 'ET', 'ET', 'ET', 'ET', 'ON', 'ON', 'ON', 'ON', 'L', 'ON', - 'ON', 'ON', 'ON', 'ON', 'ET', 'ET', 'EN', 'EN', 'ON', 'L', 'ON', 'ON', 'ON', - 'EN', 'L', 'ON', 'ON', 'ON', 'ON', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', - 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', - 'L', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', - 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', - 'L', 'L', 'L', 'ON', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L' - ]; - - // Character types for symbols from 0600 to 06FF - var arabicTypes = [ - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'CS', 'AL', 'ON', 'ON', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', - 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN', 'AN', - 'AN', 'ET', 'AN', 'AN', 'AL', 'AL', 'AL', 'NSM', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', - 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'NSM', 'ON', 'NSM', - 'NSM', 'NSM', 'NSM', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', - 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL', 'AL' - ]; - - function isOdd(i) { - return (i & 1) !== 0; - } - - function isEven(i) { - return (i & 1) === 0; - } - - function findUnequal(arr, start, value) { - for (var j = start, jj = arr.length; j < jj; ++j) { - if (arr[j] !== value) { - return j; - } - } - return j; - } - - function setValues(arr, start, end, value) { - for (var j = start; j < end; ++j) { - arr[j] = value; - } - } - - function reverseValues(arr, start, end) { - for (var i = start, j = end - 1; i < j; ++i, --j) { - var temp = arr[i]; - arr[i] = arr[j]; - arr[j] = temp; - } - } - - function createBidiText(str, isLTR, vertical) { - return { - str: str, - dir: (vertical ? 'ttb' : (isLTR ? 'ltr' : 'rtl')) - }; - } - - // These are used in bidi(), which is called frequently. We re-use them on - // each call to avoid unnecessary allocations. - var chars = []; - var types = []; - - function bidi(str, startLevel, vertical) { - var isLTR = true; - var strLength = str.length; - if (strLength === 0 || vertical) { - return createBidiText(str, isLTR, vertical); - } - - // Get types and fill arrays - chars.length = strLength; - types.length = strLength; - var numBidi = 0; - - var i, ii; - for (i = 0; i < strLength; ++i) { - chars[i] = str.charAt(i); - - var charCode = str.charCodeAt(i); - var charType = 'L'; - if (charCode <= 0x00ff) { - charType = baseTypes[charCode]; - } else if (0x0590 <= charCode && charCode <= 0x05f4) { - charType = 'R'; - } else if (0x0600 <= charCode && charCode <= 0x06ff) { - charType = arabicTypes[charCode & 0xff]; - } else if (0x0700 <= charCode && charCode <= 0x08AC) { - charType = 'AL'; - } - if (charType === 'R' || charType === 'AL' || charType === 'AN') { - numBidi++; - } - types[i] = charType; - } - - // Detect the bidi method - // - If there are no rtl characters then no bidi needed - // - If less than 30% chars are rtl then string is primarily ltr - // - If more than 30% chars are rtl then string is primarily rtl - if (numBidi === 0) { - isLTR = true; - return createBidiText(str, isLTR); - } - - if (startLevel === -1) { - if ((strLength / numBidi) < 0.3) { - isLTR = true; - startLevel = 0; - } else { - isLTR = false; - startLevel = 1; - } - } - - var levels = []; - for (i = 0; i < strLength; ++i) { - levels[i] = startLevel; - } - - /* - X1-X10: skip most of this, since we are NOT doing the embeddings. - */ - var e = (isOdd(startLevel) ? 'R' : 'L'); - var sor = e; - var eor = sor; - - /* - W1. Examine each non-spacing mark (NSM) in the level run, and change the - type of the NSM to the type of the previous character. If the NSM is at the - start of the level run, it will get the type of sor. - */ - var lastType = sor; - for (i = 0; i < strLength; ++i) { - if (types[i] === 'NSM') { - types[i] = lastType; - } else { - lastType = types[i]; - } - } - - /* - W2. Search backwards from each instance of a European number until the - first strong type (R, L, AL, or sor) is found. If an AL is found, change - the type of the European number to Arabic number. - */ - lastType = sor; - var t; - for (i = 0; i < strLength; ++i) { - t = types[i]; - if (t === 'EN') { - types[i] = (lastType === 'AL') ? 'AN' : 'EN'; - } else if (t === 'R' || t === 'L' || t === 'AL') { - lastType = t; - } - } - - /* - W3. Change all ALs to R. - */ - for (i = 0; i < strLength; ++i) { - t = types[i]; - if (t === 'AL') { - types[i] = 'R'; - } - } - - /* - W4. A single European separator between two European numbers changes to a - European number. A single common separator between two numbers of the same - type changes to that type: - */ - for (i = 1; i < strLength - 1; ++i) { - if (types[i] === 'ES' && types[i - 1] === 'EN' && types[i + 1] === 'EN') { - types[i] = 'EN'; - } - if (types[i] === 'CS' && - (types[i - 1] === 'EN' || types[i - 1] === 'AN') && - types[i + 1] === types[i - 1]) { - types[i] = types[i - 1]; - } - } - - /* - W5. A sequence of European terminators adjacent to European numbers changes - to all European numbers: - */ - for (i = 0; i < strLength; ++i) { - if (types[i] === 'EN') { - // do before - var j; - for (j = i - 1; j >= 0; --j) { - if (types[j] !== 'ET') { - break; - } - types[j] = 'EN'; - } - // do after - for (j = i + 1; j < strLength; --j) { - if (types[j] !== 'ET') { - break; - } - types[j] = 'EN'; - } - } - } - - /* - W6. Otherwise, separators and terminators change to Other Neutral: - */ - for (i = 0; i < strLength; ++i) { - t = types[i]; - if (t === 'WS' || t === 'ES' || t === 'ET' || t === 'CS') { - types[i] = 'ON'; - } - } - - /* - W7. Search backwards from each instance of a European number until the - first strong type (R, L, or sor) is found. If an L is found, then change - the type of the European number to L. - */ - lastType = sor; - for (i = 0; i < strLength; ++i) { - t = types[i]; - if (t === 'EN') { - types[i] = ((lastType === 'L') ? 'L' : 'EN'); - } else if (t === 'R' || t === 'L') { - lastType = t; - } - } - - /* - N1. A sequence of neutrals takes the direction of the surrounding strong - text if the text on both sides has the same direction. European and Arabic - numbers are treated as though they were R. Start-of-level-run (sor) and - end-of-level-run (eor) are used at level run boundaries. - */ - for (i = 0; i < strLength; ++i) { - if (types[i] === 'ON') { - var end = findUnequal(types, i + 1, 'ON'); - var before = sor; - if (i > 0) { - before = types[i - 1]; - } - - var after = eor; - if (end + 1 < strLength) { - after = types[end + 1]; - } - if (before !== 'L') { - before = 'R'; - } - if (after !== 'L') { - after = 'R'; - } - if (before === after) { - setValues(types, i, end, before); - } - i = end - 1; // reset to end (-1 so next iteration is ok) - } - } - - /* - N2. Any remaining neutrals take the embedding direction. - */ - for (i = 0; i < strLength; ++i) { - if (types[i] === 'ON') { - types[i] = e; - } - } - - /* - I1. For all characters with an even (left-to-right) embedding direction, - those of type R go up one level and those of type AN or EN go up two - levels. - I2. For all characters with an odd (right-to-left) embedding direction, - those of type L, EN or AN go up one level. - */ - for (i = 0; i < strLength; ++i) { - t = types[i]; - if (isEven(levels[i])) { - if (t === 'R') { - levels[i] += 1; - } else if (t === 'AN' || t === 'EN') { - levels[i] += 2; - } - } else { // isOdd - if (t === 'L' || t === 'AN' || t === 'EN') { - levels[i] += 1; - } - } - } - - /* - L1. On each line, reset the embedding level of the following characters to - the paragraph embedding level: - - segment separators, - paragraph separators, - any sequence of whitespace characters preceding a segment separator or - paragraph separator, and any sequence of white space characters at the end - of the line. - */ - - // don't bother as text is only single line - - /* - L2. From the highest level found in the text to the lowest odd level on - each line, reverse any contiguous sequence of characters that are at that - level or higher. - */ - - // find highest level & lowest odd level - var highestLevel = -1; - var lowestOddLevel = 99; - var level; - for (i = 0, ii = levels.length; i < ii; ++i) { - level = levels[i]; - if (highestLevel < level) { - highestLevel = level; - } - if (lowestOddLevel > level && isOdd(level)) { - lowestOddLevel = level; - } - } - - // now reverse between those limits - for (level = highestLevel; level >= lowestOddLevel; --level) { - // find segments to reverse - var start = -1; - for (i = 0, ii = levels.length; i < ii; ++i) { - if (levels[i] < level) { - if (start >= 0) { - reverseValues(chars, start, i); - start = -1; - } - } else if (start < 0) { - start = i; - } - } - if (start >= 0) { - reverseValues(chars, start, levels.length); - } - } - - /* - L3. Combining marks applied to a right-to-left base character will at this - point precede their base character. If the rendering engine expects them to - follow the base characters in the final display process, then the ordering - of the marks and the base character must be reversed. - */ - - // don't bother for now - - /* - L4. A character that possesses the mirrored property as specified by - Section 4.7, Mirrored, must be depicted by a mirrored glyph if the resolved - directionality of that character is R. - */ - - // don't mirror as characters are already mirrored in the pdf - - // Finally, return string - for (i = 0, ii = chars.length; i < ii; ++i) { - var ch = chars[i]; - if (ch === '<' || ch === '>') { - chars[i] = ''; - } - } - return createBidiText(chars.join(''), isLTR); - } - - return bidi; -})(); - - - -var MurmurHash3_64 = (function MurmurHash3_64Closure (seed) { - // Workaround for missing math precison in JS. - var MASK_HIGH = 0xffff0000; - var MASK_LOW = 0xffff; - - function MurmurHash3_64 (seed) { - var SEED = 0xc3d2e1f0; - this.h1 = seed ? seed & 0xffffffff : SEED; - this.h2 = seed ? seed & 0xffffffff : SEED; - } - - var alwaysUseUint32ArrayView = false; - - MurmurHash3_64.prototype = { - update: function MurmurHash3_64_update(input) { - var useUint32ArrayView = alwaysUseUint32ArrayView; - var i; - if (typeof input === 'string') { - var data = new Uint8Array(input.length * 2); - var length = 0; - for (i = 0; i < input.length; i++) { - var code = input.charCodeAt(i); - if (code <= 0xff) { - data[length++] = code; - } - else { - data[length++] = code >>> 8; - data[length++] = code & 0xff; - } - } - } else if (input instanceof Uint8Array) { - data = input; - length = data.length; - } else if (typeof input === 'object' && ('length' in input)) { - // processing regular arrays as well, e.g. for IE9 - data = input; - length = data.length; - useUint32ArrayView = true; - } else { - throw new Error('Wrong data format in MurmurHash3_64_update. ' + - 'Input must be a string or array.'); - } - - var blockCounts = length >> 2; - var tailLength = length - blockCounts * 4; - // we don't care about endianness here - var dataUint32 = useUint32ArrayView ? - new Uint32ArrayView(data, blockCounts) : - new Uint32Array(data.buffer, 0, blockCounts); - var k1 = 0; - var k2 = 0; - var h1 = this.h1; - var h2 = this.h2; - var C1 = 0xcc9e2d51; - var C2 = 0x1b873593; - var C1_LOW = C1 & MASK_LOW; - var C2_LOW = C2 & MASK_LOW; - - for (i = 0; i < blockCounts; i++) { - if (i & 1) { - k1 = dataUint32[i]; - k1 = (k1 * C1 & MASK_HIGH) | (k1 * C1_LOW & MASK_LOW); - k1 = k1 << 15 | k1 >>> 17; - k1 = (k1 * C2 & MASK_HIGH) | (k1 * C2_LOW & MASK_LOW); - h1 ^= k1; - h1 = h1 << 13 | h1 >>> 19; - h1 = h1 * 5 + 0xe6546b64; - } else { - k2 = dataUint32[i]; - k2 = (k2 * C1 & MASK_HIGH) | (k2 * C1_LOW & MASK_LOW); - k2 = k2 << 15 | k2 >>> 17; - k2 = (k2 * C2 & MASK_HIGH) | (k2 * C2_LOW & MASK_LOW); - h2 ^= k2; - h2 = h2 << 13 | h2 >>> 19; - h2 = h2 * 5 + 0xe6546b64; - } - } - - k1 = 0; - - switch (tailLength) { - case 3: - k1 ^= data[blockCounts * 4 + 2] << 16; - /* falls through */ - case 2: - k1 ^= data[blockCounts * 4 + 1] << 8; - /* falls through */ - case 1: - k1 ^= data[blockCounts * 4]; - /* falls through */ - k1 = (k1 * C1 & MASK_HIGH) | (k1 * C1_LOW & MASK_LOW); - k1 = k1 << 15 | k1 >>> 17; - k1 = (k1 * C2 & MASK_HIGH) | (k1 * C2_LOW & MASK_LOW); - if (blockCounts & 1) { - h1 ^= k1; - } else { - h2 ^= k1; - } - } - - this.h1 = h1; - this.h2 = h2; - return this; - }, - - hexdigest: function MurmurHash3_64_hexdigest () { - var h1 = this.h1; - var h2 = this.h2; - - h1 ^= h2 >>> 1; - h1 = (h1 * 0xed558ccd & MASK_HIGH) | (h1 * 0x8ccd & MASK_LOW); - h2 = (h2 * 0xff51afd7 & MASK_HIGH) | - (((h2 << 16 | h1 >>> 16) * 0xafd7ed55 & MASK_HIGH) >>> 16); - h1 ^= h2 >>> 1; - h1 = (h1 * 0x1a85ec53 & MASK_HIGH) | (h1 * 0xec53 & MASK_LOW); - h2 = (h2 * 0xc4ceb9fe & MASK_HIGH) | - (((h2 << 16 | h1 >>> 16) * 0xb9fe1a85 & MASK_HIGH) >>> 16); - h1 ^= h2 >>> 1; - - for (var i = 0, arr = [h1, h2], str = ''; i < arr.length; i++) { - var hex = (arr[i] >>> 0).toString(16); - while (hex.length < 8) { - hex = '0' + hex; - } - str += hex; - } - - return str; - } - }; - - return MurmurHash3_64; -})(); +exports.WorkerTask = WorkerTask; +exports.WorkerMessageHandler = WorkerMessageHandler; +})); }).call((typeof window === 'undefined') ? this : window); diff --git a/browser/extensions/pdfjs/content/web/viewer.css b/browser/extensions/pdfjs/content/web/viewer.css index b3228eca581..646daa38c49 100644 --- a/browser/extensions/pdfjs/content/web/viewer.css +++ b/browser/extensions/pdfjs/content/web/viewer.css @@ -77,6 +77,10 @@ } +.annotationLayer section { + position: absolute; +} + .annotationLayer .annotLink > a:hover { opacity: 0.2; background: #ff0; diff --git a/browser/extensions/pdfjs/content/web/viewer.js b/browser/extensions/pdfjs/content/web/viewer.js index bd0c334820e..65df450b482 100644 --- a/browser/extensions/pdfjs/content/web/viewer.js +++ b/browser/extensions/pdfjs/content/web/viewer.js @@ -12,7 +12,7 @@ * See the License for the specific language governing permissions and * limitations under the License. */ -/* globals PDFJS, PDFBug, FirefoxCom, Stats, Cache, ProgressBar, +/* globals PDFJS, PDFBug, FirefoxCom, Stats, ProgressBar, DownloadManager, getFileName, getPDFFileNameFromURL, PDFHistory, Preferences, SidebarView, ViewHistory, Stats, PDFThumbnailViewer, URL, noContextMenuHandler, SecondaryToolbar, @@ -3686,7 +3686,7 @@ var PDFPageView = (function PDFPageViewClosure() { } if (redrawAnnotations && this.annotationLayer) { - this.annotationLayer.setupAnnotations(this.viewport, 'display'); + this.annotationLayer.render(this.viewport, 'display'); } }, @@ -3907,7 +3907,7 @@ var PDFPageView = (function PDFPageViewClosure() { this.annotationLayer = this.annotationsLayerFactory. createAnnotationsLayerBuilder(div, this.pdfPage); } - this.annotationLayer.setupAnnotations(this.viewport, 'display'); + this.annotationLayer.render(this.viewport, 'display'); } div.setAttribute('data-loaded', true); @@ -4306,8 +4306,6 @@ DefaultTextLayerFactory.prototype = { * @class */ var AnnotationsLayerBuilder = (function AnnotationsLayerBuilderClosure() { - var CustomStyle = PDFJS.CustomStyle; - /** * @param {AnnotationsLayerBuilderOptions} options * @constructs AnnotationsLayerBuilder @@ -4319,6 +4317,7 @@ var AnnotationsLayerBuilder = (function AnnotationsLayerBuilderClosure() { this.div = null; } + AnnotationsLayerBuilder.prototype = /** @lends AnnotationsLayerBuilder.prototype */ { @@ -4326,118 +4325,47 @@ var AnnotationsLayerBuilder = (function AnnotationsLayerBuilderClosure() { * @param {PageViewport} viewport * @param {string} intent (default value is 'display') */ - setupAnnotations: - function AnnotationsLayerBuilder_setupAnnotations(viewport, intent) { - function bindLink(link, dest) { - link.href = linkService.getDestinationHash(dest); - link.onclick = function annotationsLayerBuilderLinksOnclick() { - if (dest) { - linkService.navigateTo(dest); - } - return false; - }; - if (dest) { - link.className = 'internalLink'; - } - } - - function bindNamedAction(link, action) { - link.href = linkService.getAnchorUrl(''); - link.onclick = function annotationsLayerBuilderNamedActionOnClick() { - linkService.executeNamedAction(action); - return false; - }; - link.className = 'internalLink'; - } - - var linkService = this.linkService; - var pdfPage = this.pdfPage; + render: function AnnotationsLayerBuilder_render(viewport, intent) { var self = this; - var getAnnotationsParams = { + var parameters = { intent: (intent === undefined ? 'display' : intent), }; - pdfPage.getAnnotations(getAnnotationsParams).then( - function (annotationsData) { + this.pdfPage.getAnnotations(parameters).then(function (annotations) { viewport = viewport.clone({ dontFlip: true }); - var transform = viewport.transform; - var transformStr = 'matrix(' + transform.join(',') + ')'; - var data, element, i, ii; if (self.div) { // If an annotationLayer already exists, refresh its children's - // transformation matrices - for (i = 0, ii = annotationsData.length; i < ii; i++) { - data = annotationsData[i]; - element = self.div.querySelector( - '[data-annotation-id="' + data.id + '"]'); - if (element) { - CustomStyle.setProp('transform', element, transformStr); - } - } - // See PDFPageView.reset() - self.div.removeAttribute('hidden'); + // transformation matrices. + PDFJS.AnnotationLayer.update(viewport, self.div, annotations); } else { - for (i = 0, ii = annotationsData.length; i < ii; i++) { - data = annotationsData[i]; - if (!data || !data.hasHtml) { - continue; - } + // Create an annotation layer div and render the annotations + // if there is at least one annotation. + if (annotations.length === 0) { + return; + } - element = PDFJS.AnnotationUtils.getHtmlElement(data, - pdfPage.commonObjs); - element.setAttribute('data-annotation-id', data.id); - if (typeof mozL10n !== 'undefined') { - mozL10n.translate(element); - } + self.div = document.createElement('div'); + self.div.className = 'annotationLayer'; + self.pageDiv.appendChild(self.div); - var rect = data.rect; - var view = pdfPage.view; - rect = PDFJS.Util.normalizeRect([ - rect[0], - view[3] - rect[1] + view[1], - rect[2], - view[3] - rect[3] + view[1] - ]); - element.style.left = rect[0] + 'px'; - element.style.top = rect[1] + 'px'; - element.style.position = 'absolute'; - - CustomStyle.setProp('transform', element, transformStr); - var transformOriginStr = -rect[0] + 'px ' + -rect[1] + 'px'; - CustomStyle.setProp('transformOrigin', element, transformOriginStr); - - if (data.subtype === 'Link' && !data.url) { - var link = element.getElementsByTagName('a')[0]; - if (link) { - if (data.action) { - bindNamedAction(link, data.action); - } else { - bindLink(link, ('dest' in data) ? data.dest : null); - } - } - } - - if (!self.div) { - var annotationLayerDiv = document.createElement('div'); - annotationLayerDiv.className = 'annotationLayer'; - self.pageDiv.appendChild(annotationLayerDiv); - self.div = annotationLayerDiv; - } - - self.div.appendChild(element); + PDFJS.AnnotationLayer.render(viewport, self.div, annotations, + self.pdfPage, self.linkService); + if (typeof mozL10n !== 'undefined') { + mozL10n.translate(self.div); } } }); }, - hide: function () { + hide: function AnnotationsLayerBuilder_hide() { if (!this.div) { return; } this.div.setAttribute('hidden', 'true'); } }; + return AnnotationsLayerBuilder; })();