mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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191 lines
5.8 KiB
HTML
191 lines
5.8 KiB
HTML
<!--
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Copyright (c) 2009 The Chromium Authors. All rights reserved.
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Use of this source code is governed by a BSD-style license that can be
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found in the LICENSE file.
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-->
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>WebGL Canvas Conformance Tests</title>
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<link rel="stylesheet" href="../resources/js-test-style.css"/>
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<script src="../resources/desktop-gl-constants.js" type="text/javascript"></script>
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<script src="../resources/js-test-pre.js"></script>
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<script src="resources/webgl-test.js"></script>
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</head>
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<body>
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<div id="description"></div>
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<div id="console"></div>
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<canvas id="canvas" style="width: 50px; height: 50px;"> </canvas>
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<canvas id="canvas2d" width="40" height="40"> </canvas>
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<script>
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description("This test ensures WebGL implementations interact correctly with the canvas tag.");
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debug("");
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debug("Canvas.getContext");
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var canvas = document.getElementById("canvas");
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var canvas2d = document.getElementById("canvas2d");
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var ctx2d = canvas2d.getContext("2d");
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var gl = create3DContext(canvas);
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if (!gl) {
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testFailed("context does not exist");
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} else {
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testPassed("context exists");
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debug("");
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debug("Checking canvas and WebGL interaction");
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// Check that a canvas with no width or height is 300x300 pixels
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shouldBe('canvas.width', '300');
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shouldBe('canvas.height', '150');
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// Check get a 4 value gl parameter as a csv string.
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function getValue4v(name) {
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var v = gl.getParameter(name);
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var result = '' +
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v[0] + ',' +
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v[1] + ',' +
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v[2] + ',' +
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v[3];
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return result;
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}
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function getViewport() {
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return getValue4v(gl.VIEWPORT);
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}
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function getClearColor() {
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return getValue4v(gl.COLOR_CLEAR_VALUE);
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}
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function isAboutEqual(a, b) {
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return Math.abs(a - b) < 0.01;
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}
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function isAboutEqualInt(a, b) {
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return Math.abs(a - b) < 3;
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}
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function checkCanvasContentIs(r3d,g3d,b3d,a3d) {
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var r2d;
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var g2d;
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var b2d;
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var a2d;
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function checkPixel(x, y, r3d,g3d,b3d,a3d) {
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var offset = (y * 40 + x) * 4;
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r2d = imgData.data[offset];
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g2d = imgData.data[offset + 1];
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b2d = imgData.data[offset + 2];
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a2d = imgData.data[offset + 3];
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//debug('' + x + ', ' + y + "(" + offset + ") = " + r2d + ", " + g2d + ", " + b2d + ", " + a2d);
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return isAboutEqualInt(r2d, r3d) &&
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isAboutEqualInt(g2d, g3d) &&
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isAboutEqualInt(b2d, b3d) &&
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isAboutEqualInt(a2d, a3d);
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}
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function checkPixels(r3d,g3d,b3d,a3d) {
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return checkPixel(0, 0, r3d, g3d, b3d, a3d) &&
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checkPixel(0, 39, r3d, g3d, b3d, a3d) &&
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checkPixel(39, 0, r3d, g3d, b3d, a3d) &&
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checkPixel(39, 39, r3d, g3d, b3d, a3d) &&
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checkPixel(0, 0, r3d, g3d, b3d, a3d);
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};
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// Set to just take the color from the 3d canvas
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ctx2d.globalCompositeOperation = 'copy';
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// fill 2d canvas with orange
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ctx2d.fillStyle = "rgb(255,192,128)";
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ctx2d.fillRect (0, 0, 40, 40);
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// get the image data
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var imgData = ctx2d.getImageData(0, 0, 40, 40);
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// check it got cleared.
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if (!checkPixels(255, 192, 128, 255)) {
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testFailed("unable to fill 2d context.");
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return;
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}
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// draw 3d canvas on top.
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ctx2d.drawImage(canvas, 0,0, 40, 40);
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// get the image data
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var imgData = ctx2d.getImageData(0, 0, 40, 40);
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// Check it's the expected color.
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if (!checkPixels(r3d, g3d, b3d, a3d)) {
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testFailed("pixels are " + r2d + "," + g2d + "," + b2d + "," + a2d +
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" expected " + r3d + "," + g3d + "," + b3d + "," + a3d);
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} else {
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testPassed("pixels are " + r3d + "," + g3d + "," + b3d + "," + a3d);
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}
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}
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checkCanvasContentIs(0, 0, 0, 0);
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shouldBe('getViewport()', '"0,0,300,150"');
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// Change the display size of the canvas and check
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// the viewport size does not change.
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debug("");
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debug("change display size of canvas and see that viewport does not change");
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canvas.style.width = "100px";
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canvas.style.height = "25px";
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var intervalId;
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intervalId = window.setInterval(function() {
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if (canvas.clientWidth == 100 &&
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canvas.clientHeight == 25) {
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window.clearInterval(intervalId);
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shouldBe('getViewport()', '"0,0,300,150"');
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shouldBe('canvas.width', '300');
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shouldBe('canvas.height', '150');
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// Change the actual size of the canvas
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// Check that the viewport does not change.
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// Check that the clear color does not change.
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// Check that the color mask does not change.
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debug("");
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debug("change the actual size of the canvas and see that the viewport does not change");
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gl.clearColor(0.25, 0.5, 0.75, 1);
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gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
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checkCanvasContentIs(64, 128, 192, 255);
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gl.colorMask(0,0,0,0);
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canvas.width = 400;
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canvas.height = 10;
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var v = gl.getParameter(gl.COLOR_CLEAR_VALUE);
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assertMsg(isAboutEqual(v[0], 0.25) &&
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isAboutEqual(v[1], 0.5) &&
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isAboutEqual(v[2], 0.75) &&
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isAboutEqual(v[3], 1),
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"gl.clearColor should not change after canvas resize");
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v = gl.getParameter(gl.COLOR_WRITEMASK);
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assertMsg(isAboutEqual(v[0], 0) &&
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isAboutEqual(v[1], 0) &&
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isAboutEqual(v[2], 0) &&
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isAboutEqual(v[3], 0),
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"gl.colorMask should not change after canvas resize");
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shouldBe('getViewport()', '"0,0,300,150"');
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checkCanvasContentIs(0, 0, 0, 0);
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debug("");
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successfullyParsed = true;
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shouldBeTrue("successfullyParsed");
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debug('<br /><span class="pass">TEST COMPLETE</span>');
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notifyFinishedToHarness();
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}
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}, 1000/30);
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}
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</script>
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<script>
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</script>
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</body>
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</html>
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