Source/core/platform/image-decoders/webp/WEBPImageDecoder.h - Issue 99103006: Moving GraphicsContext and dependencies from core to platform.

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Issue 99103006: Moving GraphicsContext and dependencies from core to platform. (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Final patch - fixes Android Created 7 years ago

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1 /*

2 * Copyright (C) 2010 Google Inc. All rights reserved.

3 *

4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions

6 * are met:

7 *

8 * 1. Redistributions of source code must retain the above copyright

9 * notice, this list of conditions and the following disclaimer.

10 * 2. Redistributions in binary form must reproduce the above copyright

11 * notice, this list of conditions and the following disclaimer in the

12 * documentation and/or other materials provided with the distribution.

13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of

14 * its contributors may be used to endorse or promote products derived

15 * from this software without specific prior written permission.

16 *

17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

27 */

28

29 #ifndef WEBPImageDecoder_h

30 #define WEBPImageDecoder_h

31

32 #include "core/platform/image-decoders/ImageDecoder.h"

33

34 #include "webp/decode.h"

35 #include "webp/demux.h"

36

37 namespace WebCore {

38

39 class WEBPImageDecoder : public ImageDecoder {

40 public:

41 WEBPImageDecoder(ImageSource::AlphaOption, ImageSource::GammaAndColorProfile Option, size_t maxDecodedBytes);

42 virtual ~WEBPImageDecoder();

43

44 virtual String filenameExtension() const OVERRIDE { return "webp"; }

45 virtual bool isSizeAvailable() OVERRIDE;

46 virtual size_t frameCount() OVERRIDE;

47 virtual ImageFrame* frameBufferAtIndex(size_t) OVERRIDE;

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

49 virtual int repetitionCount() const OVERRIDE;

50 virtual bool frameIsCompleteAtIndex(size_t) const OVERRIDE;

51 virtual float frameDurationAtIndex(size_t) const OVERRIDE;

52 virtual size_t clearCacheExceptFrame(size_t) OVERRIDE;

53

54 private:

55 bool decode(const uint8_t* dataBytes, size_t dataSize, bool onlySize, size_t frameIndex);

56

57 WebPIDecoder* m_decoder;

58 WebPDecBuffer m_decoderBuffer;

59 int m_formatFlags;

60 bool m_frameBackgroundHasAlpha;

61

62 #if USE(QCMSLIB)

63 qcms_transform* colorTransform() const { return m_transform; }

64 void createColorTransform(const char* data, size_t);

65 void readColorProfile();

66

67 bool m_haveReadProfile;

68 qcms_transform* m_transform;

69 #endif

70

71 bool updateDemuxer();

72 bool initFrameBuffer(size_t frameIndex);

73 void applyPostProcessing(size_t frameIndex);

74 virtual void clearFrameBuffer(size_t frameIndex) OVERRIDE;

75

76 WebPDemuxer* m_demux;

77 WebPDemuxState m_demuxState;

78 bool m_haveAlreadyParsedThisData;

79 bool m_haveReadAnimationParameters;

80 int m_repetitionCount;

81 int m_decodedHeight;

82

83 void clear();

84 void clearDecoder();

85 };

86

87 } // namespace WebCore

88

89 #endif

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