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1 /* | 1 /* |
2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. | 2 * Copyright (C) 2006 Apple Computer, 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 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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34 | 34 |
35 typedef Vector<unsigned char> GIFRow; | 35 typedef Vector<unsigned char> GIFRow; |
36 | 36 |
37 namespace blink { | 37 namespace blink { |
38 | 38 |
39 // This class decodes the GIF image format. | 39 // This class decodes the GIF image format. |
40 class PLATFORM_EXPORT GIFImageDecoder final : public ImageDecoder { | 40 class PLATFORM_EXPORT GIFImageDecoder final : public ImageDecoder { |
41 WTF_MAKE_NONCOPYABLE(GIFImageDecoder); | 41 WTF_MAKE_NONCOPYABLE(GIFImageDecoder); |
42 | 42 |
43 public: | 43 public: |
44 GIFImageDecoder(AlphaOption, | 44 GIFImageDecoder(AlphaOption, ColorSpaceOption, size_t maxDecodedBytes); |
45 GammaAndColorProfileOption, | |
46 size_t maxDecodedBytes); | |
47 ~GIFImageDecoder() override; | 45 ~GIFImageDecoder() override; |
48 | 46 |
49 enum GIFParseQuery { GIFSizeQuery, GIFFrameCountQuery }; | 47 enum GIFParseQuery { GIFSizeQuery, GIFFrameCountQuery }; |
50 | 48 |
51 // ImageDecoder: | 49 // ImageDecoder: |
52 String filenameExtension() const override { return "gif"; } | 50 String filenameExtension() const override { return "gif"; } |
53 void onSetData(SegmentReader* data) override; | 51 void onSetData(SegmentReader* data) override; |
54 int repetitionCount() const override; | 52 int repetitionCount() const override; |
55 bool frameIsCompleteAtIndex(size_t) const override; | 53 bool frameIsCompleteAtIndex(size_t) const override; |
56 float frameDurationAtIndex(size_t) const override; | 54 float frameDurationAtIndex(size_t) const override; |
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93 size_t clearCacheExceptTwoFrames(size_t, size_t); | 91 size_t clearCacheExceptTwoFrames(size_t, size_t); |
94 | 92 |
95 bool m_currentBufferSawAlpha; | 93 bool m_currentBufferSawAlpha; |
96 mutable int m_repetitionCount; | 94 mutable int m_repetitionCount; |
97 std::unique_ptr<GIFImageReader> m_reader; | 95 std::unique_ptr<GIFImageReader> m_reader; |
98 }; | 96 }; |
99 | 97 |
100 } // namespace blink | 98 } // namespace blink |
101 | 99 |
102 #endif | 100 #endif |
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