зеркало из https://github.com/mozilla/gecko-dev.git
184 строки
5.1 KiB
C++
184 строки
5.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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* the Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2010.
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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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 "Image.h"
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namespace mozilla {
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namespace image {
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// Constructor
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Image::Image(imgStatusTracker* aStatusTracker) :
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mInnerWindowId(0),
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mAnimationConsumers(0),
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mAnimationMode(kNormalAnimMode),
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mInitialized(false),
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mAnimating(false),
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mError(false)
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{
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if (aStatusTracker) {
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mStatusTracker = aStatusTracker;
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mStatusTracker->SetImage(this);
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} else {
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mStatusTracker = new imgStatusTracker(this);
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}
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}
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PRUint32
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Image::SizeOfData()
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{
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if (mError)
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return 0;
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// This is not used by memory reporters, but for sizing the cache, which is
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// why it uses |moz_malloc_size_of| rather than an
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// |NS_MEMORY_REPORTER_MALLOC_SIZEOF_FUN|.
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return PRUint32(HeapSizeOfSourceWithComputedFallback(moz_malloc_size_of) +
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HeapSizeOfDecodedWithComputedFallback(moz_malloc_size_of) +
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NonHeapSizeOfDecoded() +
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OutOfProcessSizeOfDecoded());
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}
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// Translates a mimetype into a concrete decoder
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Image::eDecoderType
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Image::GetDecoderType(const char *aMimeType)
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{
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// By default we don't know
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eDecoderType rv = eDecoderType_unknown;
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// PNG
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if (!strcmp(aMimeType, "image/png"))
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rv = eDecoderType_png;
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else if (!strcmp(aMimeType, "image/x-png"))
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rv = eDecoderType_png;
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// GIF
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else if (!strcmp(aMimeType, "image/gif"))
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rv = eDecoderType_gif;
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// JPEG
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else if (!strcmp(aMimeType, "image/jpeg"))
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rv = eDecoderType_jpeg;
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else if (!strcmp(aMimeType, "image/pjpeg"))
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rv = eDecoderType_jpeg;
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else if (!strcmp(aMimeType, "image/jpg"))
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rv = eDecoderType_jpeg;
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// BMP
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else if (!strcmp(aMimeType, "image/bmp"))
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rv = eDecoderType_bmp;
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else if (!strcmp(aMimeType, "image/x-ms-bmp"))
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rv = eDecoderType_bmp;
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// ICO
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else if (!strcmp(aMimeType, "image/x-icon"))
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rv = eDecoderType_ico;
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else if (!strcmp(aMimeType, "image/vnd.microsoft.icon"))
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rv = eDecoderType_ico;
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// Icon
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else if (!strcmp(aMimeType, "image/icon"))
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rv = eDecoderType_icon;
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return rv;
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}
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void
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Image::IncrementAnimationConsumers()
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{
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mAnimationConsumers++;
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EvaluateAnimation();
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}
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void
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Image::DecrementAnimationConsumers()
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{
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NS_ABORT_IF_FALSE(mAnimationConsumers >= 1, "Invalid no. of animation consumers!");
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mAnimationConsumers--;
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EvaluateAnimation();
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}
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//******************************************************************************
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/* attribute unsigned short animationMode; */
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NS_IMETHODIMP
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Image::GetAnimationMode(PRUint16* aAnimationMode)
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{
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if (mError)
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return NS_ERROR_FAILURE;
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NS_ENSURE_ARG_POINTER(aAnimationMode);
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*aAnimationMode = mAnimationMode;
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return NS_OK;
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}
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//******************************************************************************
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/* attribute unsigned short animationMode; */
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NS_IMETHODIMP
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Image::SetAnimationMode(PRUint16 aAnimationMode)
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{
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if (mError)
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return NS_ERROR_FAILURE;
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NS_ASSERTION(aAnimationMode == kNormalAnimMode ||
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aAnimationMode == kDontAnimMode ||
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aAnimationMode == kLoopOnceAnimMode,
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"Wrong Animation Mode is being set!");
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mAnimationMode = aAnimationMode;
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EvaluateAnimation();
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return NS_OK;
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}
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void
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Image::EvaluateAnimation()
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{
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if (!mAnimating && ShouldAnimate()) {
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nsresult rv = StartAnimation();
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mAnimating = NS_SUCCEEDED(rv);
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} else if (mAnimating && !ShouldAnimate()) {
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StopAnimation();
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mAnimating = false;
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}
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}
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} // namespace image
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} // namespace mozilla
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