2009-09-02 17:47:49 -07:00
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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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2012-05-21 04:12:37 -07:00
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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2009-09-17 23:01:12 -07:00
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2010-05-15 06:55:45 -07:00
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#include <stdarg.h>
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2009-09-02 17:47:49 -07:00
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#include "WebGLContext.h"
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2009-09-04 14:57:33 -07:00
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#include "prprf.h"
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2010-10-15 14:50:15 -07:00
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#include "nsIJSContextStack.h"
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#include "jsapi.h"
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2009-09-02 17:47:49 -07:00
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#include "nsIScriptSecurityManager.h"
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#include "nsServiceManagerUtils.h"
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#include "nsIVariant.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMEvent.h"
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#include "nsIDOMEventTarget.h"
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#include "nsIPrivateDOMEvent.h"
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#include "nsIDOMDataContainerEvent.h"
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#include "nsContentUtils.h"
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2011-07-06 19:00:02 -07:00
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#include "mozilla/Preferences.h"
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2009-09-02 17:47:49 -07:00
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#if 0
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#include "nsIContentURIGrouper.h"
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#include "nsIContentPrefService.h"
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#endif
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using namespace mozilla;
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void
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WebGLContext::LogMessage(const char *fmt, ...)
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{
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2010-09-13 08:40:01 -07:00
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va_list ap;
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va_start(ap, fmt);
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2009-09-02 17:47:49 -07:00
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2010-09-13 08:40:01 -07:00
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LogMessage(fmt, ap);
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2009-09-02 17:47:49 -07:00
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2010-09-13 08:40:01 -07:00
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va_end(ap);
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2009-09-02 17:47:49 -07:00
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}
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2010-05-15 06:55:45 -07:00
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void
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WebGLContext::LogMessage(const char *fmt, va_list ap)
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2009-09-02 17:47:49 -07:00
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{
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if (!fmt) return;
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2010-09-13 08:40:01 -07:00
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char buf[1024];
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2010-10-15 14:50:15 -07:00
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PR_vsnprintf(buf, 1024, fmt, ap);
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2010-09-13 08:40:01 -07:00
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2010-10-15 14:50:15 -07:00
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// no need to print to stderr, as JS_ReportWarning takes care of this for us.
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nsCOMPtr<nsIJSContextStack> stack = do_GetService("@mozilla.org/js/xpc/ContextStack;1");
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JSContext* ccx = nsnull;
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if (stack && NS_SUCCEEDED(stack->Peek(&ccx)) && ccx)
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JS_ReportWarning(ccx, "WebGL: %s", buf);
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2010-09-13 08:40:01 -07:00
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}
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void
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2010-10-15 14:50:15 -07:00
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WebGLContext::LogMessageIfVerbose(const char *fmt, ...)
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2010-09-13 08:40:01 -07:00
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{
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va_list ap;
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va_start(ap, fmt);
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2010-12-06 03:34:35 -08:00
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LogMessageIfVerbose(fmt, ap);
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2010-09-13 08:40:01 -07:00
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va_end(ap);
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}
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void
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WebGLContext::LogMessageIfVerbose(const char *fmt, va_list ap)
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{
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2011-09-28 23:19:26 -07:00
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static bool firstTime = true;
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2010-12-06 03:34:35 -08:00
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if (mVerbose)
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LogMessage(fmt, ap);
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else if (firstTime)
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LogMessage("There are WebGL warnings or messages in this page, but they are hidden. To see them, "
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"go to about:config, set the webgl.verbose preference, and reload this page.");
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2011-10-17 07:59:28 -07:00
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firstTime = false;
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}
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2009-09-02 17:47:49 -07:00
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2011-09-01 12:28:34 -07:00
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CheckedUint32
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WebGLContext::GetImageSize(WebGLsizei height,
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WebGLsizei width,
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PRUint32 pixelSize,
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PRUint32 packOrUnpackAlignment)
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{
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CheckedUint32 checked_plainRowSize = CheckedUint32(width) * pixelSize;
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// alignedRowSize = row size rounded up to next multiple of packAlignment
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CheckedUint32 checked_alignedRowSize = RoundedToNextMultipleOf(checked_plainRowSize, packOrUnpackAlignment);
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// if height is 0, we don't need any memory to store this; without this check, we'll get an overflow
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CheckedUint32 checked_neededByteLength
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= height <= 0 ? 0 : (height-1) * checked_alignedRowSize + checked_plainRowSize;
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return checked_neededByteLength;
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}
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2012-05-04 09:38:44 -07:00
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void
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2010-05-28 15:52:39 -07:00
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WebGLContext::SynthesizeGLError(WebGLenum err)
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{
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// If there is already a pending error, don't overwrite it;
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// but if there isn't, then we need to check for a gl error
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// that may have occurred before this one and use that code
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// instead.
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2011-07-07 17:01:16 -07:00
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MakeContextCurrent();
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2011-07-07 17:01:16 -07:00
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UpdateWebGLErrorAndClearGLError();
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2011-07-07 17:01:16 -07:00
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if (!mWebGLError)
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mWebGLError = err;
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}
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2012-05-04 09:38:44 -07:00
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void
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2010-05-28 15:52:39 -07:00
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WebGLContext::SynthesizeGLError(WebGLenum err, const char *fmt, ...)
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{
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va_list va;
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va_start(va, fmt);
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LogMessageIfVerbose(fmt, va);
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va_end(va);
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return SynthesizeGLError(err);
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}
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2012-05-04 09:38:44 -07:00
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void
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2010-05-15 06:55:45 -07:00
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WebGLContext::ErrorInvalidEnum(const char *fmt, ...)
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{
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va_list va;
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va_start(va, fmt);
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LogMessageIfVerbose(fmt, va);
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va_end(va);
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return SynthesizeGLError(LOCAL_GL_INVALID_ENUM);
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}
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2012-05-04 09:38:44 -07:00
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void
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WebGLContext::ErrorInvalidOperation(const char *fmt, ...)
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{
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va_list va;
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va_start(va, fmt);
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LogMessageIfVerbose(fmt, va);
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va_end(va);
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return SynthesizeGLError(LOCAL_GL_INVALID_OPERATION);
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}
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2012-05-04 09:38:44 -07:00
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void
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WebGLContext::ErrorInvalidValue(const char *fmt, ...)
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{
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va_list va;
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va_start(va, fmt);
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LogMessageIfVerbose(fmt, va);
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va_end(va);
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2009-09-02 17:47:49 -07:00
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2010-05-15 06:55:45 -07:00
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return SynthesizeGLError(LOCAL_GL_INVALID_VALUE);
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}
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2011-02-24 14:17:34 -08:00
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2012-05-04 09:38:44 -07:00
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void
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2012-01-24 13:12:31 -08:00
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WebGLContext::ErrorInvalidFramebufferOperation(const char *fmt, ...)
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{
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va_list va;
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va_start(va, fmt);
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LogMessageIfVerbose(fmt, va);
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va_end(va);
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return SynthesizeGLError(LOCAL_GL_INVALID_FRAMEBUFFER_OPERATION);
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}
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2012-05-04 09:38:44 -07:00
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void
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2011-02-24 14:17:34 -08:00
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WebGLContext::ErrorOutOfMemory(const char *fmt, ...)
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{
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va_list va;
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va_start(va, fmt);
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LogMessageIfVerbose(fmt, va);
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va_end(va);
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return SynthesizeGLError(LOCAL_GL_OUT_OF_MEMORY);
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}
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2011-07-07 17:01:16 -07:00
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const char *
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WebGLContext::ErrorName(GLenum error)
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{
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switch(error) {
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case LOCAL_GL_INVALID_ENUM:
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return "INVALID_ENUM";
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case LOCAL_GL_INVALID_OPERATION:
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return "INVALID_OPERATION";
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case LOCAL_GL_INVALID_VALUE:
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return "INVALID_VALUE";
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case LOCAL_GL_OUT_OF_MEMORY:
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return "OUT_OF_MEMORY";
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case LOCAL_GL_INVALID_FRAMEBUFFER_OPERATION:
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return "INVALID_FRAMEBUFFER_OPERATION";
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case LOCAL_GL_NO_ERROR:
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return "NO_ERROR";
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default:
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NS_ABORT();
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return "[unknown WebGL error!]";
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}
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2012-04-03 16:42:06 -07:00
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}
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bool
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WebGLContext::IsTextureFormatCompressed(GLenum format)
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{
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switch(format) {
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case LOCAL_GL_RGB:
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case LOCAL_GL_RGBA:
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case LOCAL_GL_ALPHA:
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case LOCAL_GL_LUMINANCE:
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case LOCAL_GL_LUMINANCE_ALPHA:
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return false;
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case LOCAL_GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
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case LOCAL_GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
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case LOCAL_GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
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case LOCAL_GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
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return true;
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}
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NS_NOTREACHED("Invalid WebGL texture format?");
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NS_ABORT();
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return false;
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}
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