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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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