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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 Google Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * | 7 * |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
| (...skipping 27 matching lines...) Expand all Loading... |
| 38 namespace blink { | 38 namespace blink { |
| 39 | 39 |
| 40 class PLATFORM_EXPORT WEBPImageDecoder final : public ImageDecoder { | 40 class PLATFORM_EXPORT WEBPImageDecoder final : public ImageDecoder { |
| 41 WTF_MAKE_NONCOPYABLE(WEBPImageDecoder); | 41 WTF_MAKE_NONCOPYABLE(WEBPImageDecoder); |
| 42 public: | 42 public: |
| 43 WEBPImageDecoder(AlphaOption, GammaAndColorProfileOption, size_t maxDecodedB
ytes); | 43 WEBPImageDecoder(AlphaOption, GammaAndColorProfileOption, size_t maxDecodedB
ytes); |
| 44 ~WEBPImageDecoder() override; | 44 ~WEBPImageDecoder() override; |
| 45 | 45 |
| 46 // ImageDecoder: | 46 // ImageDecoder: |
| 47 String filenameExtension() const override { return "webp"; } | 47 String filenameExtension() const override { return "webp"; } |
| 48 void onSetData(SegmentReader* data) override; | |
| 49 int repetitionCount() const override; | 48 int repetitionCount() const override; |
| 50 bool frameIsCompleteAtIndex(size_t) const override; | 49 bool frameIsFullyReceivedAtIndex(size_t) const override; |
| 51 float frameDurationAtIndex(size_t) const override; | 50 float frameDurationAtIndex(size_t) const override; |
| 52 size_t clearCacheExceptFrame(size_t) override; | 51 size_t clearCacheExceptFrame(size_t) override; |
| 53 | 52 |
| 54 private: | 53 private: |
| 55 // ImageDecoder: | 54 // ImageDecoder: |
| 56 virtual void decodeSize() { updateDemuxer(); } | 55 virtual void decodeSize() { updateDemuxer(); } |
| 57 size_t decodeFrameCount() override; | 56 size_t decodeFrameCount() override; |
| 58 void initializeNewFrame(size_t) override; | 57 void initializeNewFrame(size_t) override; |
| 59 void decode(size_t) override; | 58 void decode(size_t) override; |
| 60 | 59 |
| 61 bool decodeSingleFrame(const uint8_t* dataBytes, size_t dataSize, size_t fra
meIndex); | 60 bool decodeSingleFrame(const uint8_t* dataBytes, size_t dataSize, size_t fra
meIndex); |
| 62 | 61 |
| 63 WebPIDecoder* m_decoder; | 62 WebPIDecoder* m_decoder; |
| 64 WebPDecBuffer m_decoderBuffer; | 63 WebPDecBuffer m_decoderBuffer; |
| 65 int m_formatFlags; | 64 int m_formatFlags; |
| 66 bool m_frameBackgroundHasAlpha; | 65 bool m_frameBackgroundHasAlpha; |
| 67 | 66 |
| 68 #if USE(QCMSLIB) | 67 #if USE(QCMSLIB) |
| 69 void readColorProfile(); | 68 void readColorProfile(); |
| 70 #endif | 69 #endif |
| 71 | 70 |
| 72 bool updateDemuxer(); | 71 bool updateDemuxer(); |
| 73 bool initFrameBuffer(size_t frameIndex); | 72 bool initFrameBuffer(size_t frameIndex); |
| 74 void applyPostProcessing(size_t frameIndex); | 73 void applyPostProcessing(size_t frameIndex); |
| 75 void clearFrameBuffer(size_t frameIndex) override; | 74 void clearFrameBuffer(size_t frameIndex) override; |
| 76 | 75 |
| 77 WebPDemuxer* m_demux; | 76 WebPDemuxer* m_demux; |
| 78 WebPDemuxState m_demuxState; | 77 WebPDemuxState m_demuxState; |
| 79 bool m_haveAlreadyParsedThisData; | |
| 80 int m_repetitionCount; | 78 int m_repetitionCount; |
| 81 int m_decodedHeight; | 79 int m_decodedHeight; |
| 82 | 80 |
| 83 typedef void (*AlphaBlendFunction)(ImageFrame&, ImageFrame&, int, int, int); | 81 typedef void (*AlphaBlendFunction)(ImageFrame&, ImageFrame&, int, int, int); |
| 84 AlphaBlendFunction m_blendFunction; | 82 AlphaBlendFunction m_blendFunction; |
| 85 | 83 |
| 86 void clear(); | 84 void clear(); |
| 87 void clearDecoder(); | 85 void clearDecoder(); |
| 88 | 86 |
| 89 // FIXME: Update libwebp's API so it does not require copying the data on ea
ch update. | 87 // FIXME: Update libwebp's API so it does not require copying the data on ea
ch update. |
| 90 RefPtr<SkData> m_consolidatedData; | 88 RefPtr<SkData> m_consolidatedData; |
| 91 }; | 89 }; |
| 92 | 90 |
| 93 } // namespace blink | 91 } // namespace blink |
| 94 | 92 |
| 95 #endif | 93 #endif |
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