| /* |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef WEBPImageDecoder_h |
| #define WEBPImageDecoder_h |
| |
| #include "core/platform/image-decoders/ImageDecoder.h" |
| |
| #include "webp/decode.h" |
| #include "webp/demux.h" |
| |
| namespace WebCore { |
| |
| class WEBPImageDecoder : public ImageDecoder { |
| public: |
| WEBPImageDecoder(ImageSource::AlphaOption, ImageSource::GammaAndColorProfileOption); |
| virtual ~WEBPImageDecoder(); |
| |
| virtual String filenameExtension() const OVERRIDE { return "webp"; } |
| virtual bool isSizeAvailable() OVERRIDE; |
| virtual size_t frameCount() OVERRIDE; |
| virtual ImageFrame* frameBufferAtIndex(size_t) OVERRIDE; |
| virtual void setData(SharedBuffer* data, bool allDataReceived) OVERRIDE; |
| virtual int repetitionCount() const OVERRIDE; |
| virtual bool frameIsCompleteAtIndex(size_t) const OVERRIDE; |
| virtual float frameDurationAtIndex(size_t) const OVERRIDE; |
| virtual size_t clearCacheExceptFrame(size_t) OVERRIDE; |
| |
| private: |
| bool decode(const uint8_t* dataBytes, size_t dataSize, bool onlySize, size_t frameIndex); |
| |
| WebPIDecoder* m_decoder; |
| WebPDecBuffer m_decoderBuffer; |
| int m_formatFlags; |
| bool m_frameBackgroundHasAlpha; |
| |
| #if USE(QCMSLIB) |
| qcms_transform* colorTransform() const { return m_transform; } |
| void createColorTransform(const char* data, size_t); |
| void readColorProfile(); |
| |
| bool m_haveReadProfile; |
| bool m_hasProfile; |
| qcms_transform* m_transform; |
| #endif |
| |
| bool updateDemuxer(); |
| bool initFrameBuffer(const WebPIterator&, size_t frameIndex); |
| void applyPostProcessing(size_t frameIndex); |
| virtual void clearFrameBuffer(size_t frameIndex) OVERRIDE; |
| |
| WebPDemuxer* m_demux; |
| WebPDemuxState m_demuxState; |
| bool m_haveAlreadyParsedThisData; |
| bool m_haveReadAnimationParameters; |
| int m_repetitionCount; |
| int m_decodedHeight; |
| |
| void clear(); |
| void clearDecoder(); |
| }; |
| |
| } // namespace WebCore |
| |
| #endif |