Source/core/platform/image-decoders/gif/GIFImageDecoder.h - Issue 14317005: Checking if frame is complete and access duration doesn't need a decode

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Issue 14317005: Checking if frame is complete and access duration doesn't need a decode (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: fixed nits Created 7 years, 8 months ago

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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

(...skipping 31 matching lines...) Expand 10 before \| Expand all \| Expand 10 after Loading...
42 enum GIFQuery { GIFFullQuery, GIFSizeQuery, GIFFrameCountQuery };	42 enum GIFQuery { GIFFullQuery, GIFSizeQuery, GIFFrameCountQuery };

43	43

44 // ImageDecoder	44 // ImageDecoder

45 virtual String filenameExtension() const { return "gif"; }	45 virtual String filenameExtension() const { return "gif"; }

46 virtual void setData(SharedBuffer* data, bool allDataReceived);	46 virtual void setData(SharedBuffer* data, bool allDataReceived);

47 virtual bool isSizeAvailable();	47 virtual bool isSizeAvailable();

48 virtual bool setSize(unsigned width, unsigned height);	48 virtual bool setSize(unsigned width, unsigned height);

49 virtual size_t frameCount();	49 virtual size_t frameCount();

50 virtual int repetitionCount() const;	50 virtual int repetitionCount() const;

51 virtual ImageFrame* frameBufferAtIndex(size_t index);	51 virtual ImageFrame* frameBufferAtIndex(size_t index);

	52 virtual bool frameIsCompleteAtIndex(size_t) const;

	53 virtual float frameDurationAtIndex(size_t) const;
	Alpha Left Google 2013/04/26 20:43:36 Done. Now it has a default implementation. Done. Now it has a default implementation.
52 // CAUTION: setFailed() deletes \|m_reader\|. Be careful to avoid	54 // CAUTION: setFailed() deletes \|m_reader\|. Be careful to avoid

53 // accessing deleted memory, especially when calling this from inside	55 // accessing deleted memory, especially when calling this from inside

54 // GIFImageReader!	56 // GIFImageReader!

55 virtual bool setFailed();	57 virtual bool setFailed();

56 virtual void clearFrameBufferCache(size_t clearBeforeFrame);	58 virtual void clearFrameBufferCache(size_t clearBeforeFrame);

57	59

58 // Callbacks from the GIF reader.	60 // Callbacks from the GIF reader.

59 bool haveDecodedRow(unsigned frameIndex, const Vector<unsigned char>& ro wBuffer, size_t width, size_t rowNumber, unsigned repeatCount, bool writeTranspa rentPixels);	61 bool haveDecodedRow(unsigned frameIndex, const Vector<unsigned char>& ro wBuffer, size_t width, size_t rowNumber, unsigned repeatCount, bool writeTranspa rentPixels);

60 bool frameComplete(unsigned frameIndex, unsigned frameDuration, ImageFra me::FrameDisposalMethod disposalMethod);	62 bool frameComplete(unsigned frameIndex, unsigned frameDuration, ImageFra me::FrameDisposalMethod disposalMethod);

61 void gifComplete();	63 void gifComplete();

(...skipping 11 matching lines...) Expand all Loading...
73 bool initFrameBuffer(unsigned frameIndex);	75 bool initFrameBuffer(unsigned frameIndex);

74	76

75 bool m_currentBufferSawAlpha;	77 bool m_currentBufferSawAlpha;

76 mutable int m_repetitionCount;	78 mutable int m_repetitionCount;

77 OwnPtr<GIFImageReader> m_reader;	79 OwnPtr<GIFImageReader> m_reader;

78 };	80 };

79	81

80 } // namespace WebCore	82 } // namespace WebCore

81	83

82 #endif	84 #endif

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