Source/platform/graphics/Canvas2DLayerBridge.h - Issue 562583002: Implement image-rendering:pixelated for accelerated 2D canvases.

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Issue 562583002: Implement image-rendering:pixelated for accelerated 2D canvases. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Created 6 years, 3 months ago

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« Source/core/html/HTMLCanvasElement.cpp ('K') | « Source/platform/graphics/Canvas2DImageBufferSurface.h ('k') | Source/platform/graphics/Canvas2DLayerBridge.cpp » ('j') | Source/platform/graphics/ImageBuffer.h » ('J')
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1 /*	1 /*

2 * Copyright (C) 2012 Google Inc. All rights reserved.	2 * Copyright (C) 2012 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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67	67

68 // ImageBufferSurface implementation	68 // ImageBufferSurface implementation

69 void finalizeFrame(const FloatRect &dirtyRect);	69 void finalizeFrame(const FloatRect &dirtyRect);

70 void willAccessPixels();	70 void willAccessPixels();

71 SkCanvas* canvas() const { return m_canvas.get(); }	71 SkCanvas* canvas() const { return m_canvas.get(); }

72 bool checkSurfaceValid();	72 bool checkSurfaceValid();

73 bool restoreSurface();	73 bool restoreSurface();

74 WebLayer* layer() const;	74 WebLayer* layer() const;

75 Platform3DObject getBackingTexture();	75 Platform3DObject getBackingTexture();

76 bool isAccelerated() const { return true; }	76 bool isAccelerated() const { return true; }

	77 void setNearestNeighbor(bool);

77 void setIsHidden(bool);	78 void setIsHidden(bool);

78 void setImageBuffer(ImageBuffer* imageBuffer) { m_imageBuffer = imageBuffer; }	79 void setImageBuffer(ImageBuffer* imageBuffer) { m_imageBuffer = imageBuffer; }

79	80

80 // Methods used by Canvas2DLayerManager	81 // Methods used by Canvas2DLayerManager

81 virtual size_t freeMemoryIfPossible(size_t); // virtual for mocking	82 virtual size_t freeMemoryIfPossible(size_t); // virtual for mocking

82 virtual void flush(); // virtual for mocking	83 virtual void flush(); // virtual for mocking

83 virtual size_t storageAllocatedForRecording(); // virtual for faking	84 virtual size_t storageAllocatedForRecording(); // virtual for faking

84 size_t bytesAllocated() const { return m_bytesAllocated; }	85 size_t bytesAllocated() const { return m_bytesAllocated; }

85 void limitPendingFrames();	86 void limitPendingFrames();

86 void freeReleasedMailbox();	87 void freeReleasedMailbox();

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103 OwnPtr<WebGraphicsContext3DProvider> m_contextProvider;	104 OwnPtr<WebGraphicsContext3DProvider> m_contextProvider;

104 ImageBuffer* m_imageBuffer;	105 ImageBuffer* m_imageBuffer;

105 int m_msaaSampleCount;	106 int m_msaaSampleCount;

106 size_t m_bytesAllocated;	107 size_t m_bytesAllocated;

107 bool m_didRecordDrawCommand;	108 bool m_didRecordDrawCommand;

108 bool m_isSurfaceValid;	109 bool m_isSurfaceValid;

109 int m_framesPending;	110 int m_framesPending;

110 int m_framesSinceMailboxRelease;	111 int m_framesSinceMailboxRelease;

111 bool m_destructionInProgress;	112 bool m_destructionInProgress;

112 bool m_rateLimitingEnabled;	113 bool m_rateLimitingEnabled;

	114 bool m_nearestNeighbor;

113 bool m_isHidden;	115 bool m_isHidden;

114	116

115 friend class WTF::DoublyLinkedListNode<Canvas2DLayerBridge>;	117 friend class WTF::DoublyLinkedListNode<Canvas2DLayerBridge>;

116 friend class ::Canvas2DLayerBridgeTest;	118 friend class ::Canvas2DLayerBridgeTest;

117 Canvas2DLayerBridge* m_next;	119 Canvas2DLayerBridge* m_next;

118 Canvas2DLayerBridge* m_prev;	120 Canvas2DLayerBridge* m_prev;

119	121

120 enum MailboxStatus {	122 enum MailboxStatus {

121 MailboxInUse,	123 MailboxInUse,

122 MailboxReleased,	124 MailboxReleased,

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136 MailboxInfo* releasedMailboxInfo();	138 MailboxInfo* releasedMailboxInfo();

137	139

138 uint32_t m_lastImageId;	140 uint32_t m_lastImageId;

139 Vector<MailboxInfo> m_mailboxes;	141 Vector<MailboxInfo> m_mailboxes;

140 int m_releasedMailboxInfoIndex;	142 int m_releasedMailboxInfoIndex;

141 };	143 };

142	144

143 } // namespace blink	145 } // namespace blink

144	146

145 #endif	147 #endif

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