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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 |
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34 #include "webp/decode.h" | 34 #include "webp/decode.h" |
35 #include "webp/demux.h" | 35 #include "webp/demux.h" |
36 | 36 |
37 namespace blink { | 37 namespace blink { |
38 | 38 |
39 class PLATFORM_EXPORT WEBPImageDecoder : public ImageDecoder { | 39 class PLATFORM_EXPORT WEBPImageDecoder : public ImageDecoder { |
40 public: | 40 public: |
41 WEBPImageDecoder(ImageSource::AlphaOption, ImageSource::GammaAndColorProfile
Option, size_t maxDecodedBytes); | 41 WEBPImageDecoder(ImageSource::AlphaOption, ImageSource::GammaAndColorProfile
Option, size_t maxDecodedBytes); |
42 virtual ~WEBPImageDecoder(); | 42 virtual ~WEBPImageDecoder(); |
43 | 43 |
44 virtual String filenameExtension() const OVERRIDE { return "webp"; } | 44 virtual String filenameExtension() const override { return "webp"; } |
45 virtual bool isSizeAvailable() OVERRIDE; | 45 virtual bool isSizeAvailable() override; |
46 virtual bool hasColorProfile() const OVERRIDE { return m_hasColorProfile; } | 46 virtual bool hasColorProfile() const override { return m_hasColorProfile; } |
47 virtual size_t frameCount() OVERRIDE; | 47 virtual size_t frameCount() override; |
48 virtual ImageFrame* frameBufferAtIndex(size_t) OVERRIDE; | 48 virtual ImageFrame* frameBufferAtIndex(size_t) override; |
49 virtual void setData(SharedBuffer* data, bool allDataReceived) OVERRIDE; | 49 virtual void setData(SharedBuffer* data, bool allDataReceived) override; |
50 virtual int repetitionCount() const OVERRIDE; | 50 virtual int repetitionCount() const override; |
51 virtual bool frameIsCompleteAtIndex(size_t) const OVERRIDE; | 51 virtual bool frameIsCompleteAtIndex(size_t) const override; |
52 virtual float frameDurationAtIndex(size_t) const OVERRIDE; | 52 virtual float frameDurationAtIndex(size_t) const override; |
53 virtual size_t clearCacheExceptFrame(size_t) OVERRIDE; | 53 virtual size_t clearCacheExceptFrame(size_t) override; |
54 | 54 |
55 private: | 55 private: |
56 bool decode(const uint8_t* dataBytes, size_t dataSize, bool onlySize, size_t
frameIndex); | 56 bool decode(const uint8_t* dataBytes, size_t dataSize, bool onlySize, size_t
frameIndex); |
57 | 57 |
58 WebPIDecoder* m_decoder; | 58 WebPIDecoder* m_decoder; |
59 WebPDecBuffer m_decoderBuffer; | 59 WebPDecBuffer m_decoderBuffer; |
60 int m_formatFlags; | 60 int m_formatFlags; |
61 bool m_frameBackgroundHasAlpha; | 61 bool m_frameBackgroundHasAlpha; |
62 bool m_hasColorProfile; | 62 bool m_hasColorProfile; |
63 | 63 |
64 #if USE(QCMSLIB) | 64 #if USE(QCMSLIB) |
65 qcms_transform* colorTransform() const { return m_transform; } | 65 qcms_transform* colorTransform() const { return m_transform; } |
66 bool createColorTransform(const char* data, size_t); | 66 bool createColorTransform(const char* data, size_t); |
67 void clearColorTransform(); | 67 void clearColorTransform(); |
68 void readColorProfile(); | 68 void readColorProfile(); |
69 | 69 |
70 bool m_haveReadProfile; | 70 bool m_haveReadProfile; |
71 qcms_transform* m_transform; | 71 qcms_transform* m_transform; |
72 #endif | 72 #endif |
73 | 73 |
74 bool updateDemuxer(); | 74 bool updateDemuxer(); |
75 bool initFrameBuffer(size_t frameIndex); | 75 bool initFrameBuffer(size_t frameIndex); |
76 void applyPostProcessing(size_t frameIndex); | 76 void applyPostProcessing(size_t frameIndex); |
77 virtual void clearFrameBuffer(size_t frameIndex) OVERRIDE; | 77 virtual void clearFrameBuffer(size_t frameIndex) override; |
78 | 78 |
79 WebPDemuxer* m_demux; | 79 WebPDemuxer* m_demux; |
80 WebPDemuxState m_demuxState; | 80 WebPDemuxState m_demuxState; |
81 bool m_haveAlreadyParsedThisData; | 81 bool m_haveAlreadyParsedThisData; |
82 bool m_haveReadAnimationParameters; | 82 bool m_haveReadAnimationParameters; |
83 int m_repetitionCount; | 83 int m_repetitionCount; |
84 int m_decodedHeight; | 84 int m_decodedHeight; |
85 | 85 |
86 typedef void (*AlphaBlendFunction)(ImageFrame&, ImageFrame&, int, int, int); | 86 typedef void (*AlphaBlendFunction)(ImageFrame&, ImageFrame&, int, int, int); |
87 AlphaBlendFunction m_blendFunction; | 87 AlphaBlendFunction m_blendFunction; |
88 | 88 |
89 void clear(); | 89 void clear(); |
90 void clearDecoder(); | 90 void clearDecoder(); |
91 }; | 91 }; |
92 | 92 |
93 } // namespace blink | 93 } // namespace blink |
94 | 94 |
95 #endif | 95 #endif |
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