mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
266 lines
7.1 KiB
C++
266 lines
7.1 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Vladimir Vukicevic <vladimir@pobox.com> (original author)
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* Mark Steele <mwsteele@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include <stdarg.h>
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#include "WebGLContext.h"
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#include "prprf.h"
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#include "nsIJSContextStack.h"
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#include "jsapi.h"
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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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#include "mozilla/Preferences.h"
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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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va_list ap;
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va_start(ap, fmt);
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LogMessage(fmt, ap);
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va_end(ap);
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}
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void
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WebGLContext::LogMessage(const char *fmt, va_list ap)
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{
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if (!fmt) return;
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char buf[1024];
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PR_vsnprintf(buf, 1024, fmt, ap);
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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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}
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void
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WebGLContext::LogMessageIfVerbose(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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LogMessageIfVerbose(fmt, ap);
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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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static bool firstTime = true;
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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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firstTime = false;
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}
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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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nsresult
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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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MakeContextCurrent();
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UpdateWebGLErrorAndClearGLError();
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if (!mWebGLError)
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mWebGLError = err;
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return NS_OK;
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}
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nsresult
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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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nsresult
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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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nsresult
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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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nsresult
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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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return SynthesizeGLError(LOCAL_GL_INVALID_VALUE);
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}
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nsresult
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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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nsresult
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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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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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}
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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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