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| 1 /* | |
| 2 * Copyright (C) 2012 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 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
| 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
| 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
| 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #ifndef SKY_ENGINE_PLATFORM_GRAPHICS_CANVAS2DLAYERBRIDGE_H_ | |
| 27 #define SKY_ENGINE_PLATFORM_GRAPHICS_CANVAS2DLAYERBRIDGE_H_ | |
| 28 | |
| 29 #include "sky/engine/platform/PlatformExport.h" | |
| 30 #include "sky/engine/platform/geometry/IntSize.h" | |
| 31 #include "sky/engine/platform/graphics/ImageBufferSurface.h" | |
| 32 #include "sky/engine/public/platform/WebExternalTextureLayer.h" | |
| 33 #include "sky/engine/public/platform/WebExternalTextureLayerClient.h" | |
| 34 #include "sky/engine/public/platform/WebExternalTextureMailbox.h" | |
| 35 #include "sky/engine/wtf/DoublyLinkedList.h" | |
| 36 #include "sky/engine/wtf/PassOwnPtr.h" | |
| 37 #include "sky/engine/wtf/RefCounted.h" | |
| 38 #include "sky/engine/wtf/RefPtr.h" | |
| 39 #include "third_party/khronos/GLES2/gl2.h" | |
| 40 #include "third_party/skia/include/core/SkImage.h" | |
| 41 #include "third_party/skia/include/utils/SkDeferredCanvas.h" | |
| 42 | |
| 43 class Canvas2DLayerBridgeTest; | |
| 44 | |
| 45 namespace blink { | |
| 46 | |
| 47 class ImageBuffer; | |
| 48 class WebGraphicsContext3D; | |
| 49 class WebGraphicsContext3DProvider; | |
| 50 | |
| 51 class PLATFORM_EXPORT Canvas2DLayerBridge : public WebExternalTextureLayerClient
, public SkDeferredCanvas::NotificationClient, public DoublyLinkedListNode<Canva
s2DLayerBridge>, public RefCounted<Canvas2DLayerBridge> { | |
| 52 WTF_MAKE_NONCOPYABLE(Canvas2DLayerBridge); | |
| 53 public: | |
| 54 static PassRefPtr<Canvas2DLayerBridge> create(const IntSize&, OpacityMode, i
nt msaaSampleCount); | |
| 55 | |
| 56 virtual ~Canvas2DLayerBridge(); | |
| 57 | |
| 58 // WebExternalTextureLayerClient implementation. | |
| 59 virtual bool prepareMailbox(WebExternalTextureMailbox*, WebExternalBitmap*)
override; | |
| 60 virtual void mailboxReleased(const WebExternalTextureMailbox&, bool lostReso
urce) override; | |
| 61 | |
| 62 // SkDeferredCanvas::NotificationClient implementation | |
| 63 virtual void prepareForDraw() override; | |
| 64 virtual void storageAllocatedForRecordingChanged(size_t) override; | |
| 65 virtual void flushedDrawCommands() override; | |
| 66 virtual void skippedPendingDrawCommands() override; | |
| 67 | |
| 68 // ImageBufferSurface implementation | |
| 69 void finalizeFrame(); | |
| 70 void willAccessPixels(); | |
| 71 SkCanvas* canvas() const { return m_canvas.get(); } | |
| 72 bool checkSurfaceValid(); | |
| 73 bool restoreSurface(); | |
| 74 WebLayer* layer() const; | |
| 75 Platform3DObject getBackingTexture(); | |
| 76 bool isAccelerated() const { return true; } | |
| 77 void setIsHidden(bool); | |
| 78 void setImageBuffer(ImageBuffer* imageBuffer) { m_imageBuffer = imageBuffer;
} | |
| 79 | |
| 80 // Methods used by Canvas2DLayerManager | |
| 81 virtual size_t freeMemoryIfPossible(size_t); // virtual for mocking | |
| 82 virtual void flush(); // virtual for mocking | |
| 83 virtual size_t storageAllocatedForRecording(); // virtual for faking | |
| 84 size_t bytesAllocated() const { return m_bytesAllocated; } | |
| 85 void limitPendingFrames(); | |
| 86 void freeReleasedMailbox(); | |
| 87 bool hasReleasedMailbox() const; | |
| 88 void freeTransientResources(); | |
| 89 bool hasTransientResources() const; | |
| 90 bool isHidden() { return m_isHidden; } | |
| 91 | |
| 92 void beginDestruction(); | |
| 93 | |
| 94 protected: | |
| 95 Canvas2DLayerBridge(PassOwnPtr<WebGraphicsContext3DProvider>, PassOwnPtr<SkD
eferredCanvas>, PassRefPtr<SkSurface>, int, OpacityMode); | |
| 96 void setRateLimitingEnabled(bool); | |
| 97 bool releasedMailboxHasExpired(); | |
| 98 WebGraphicsContext3D* context(); | |
| 99 | |
| 100 OwnPtr<SkDeferredCanvas> m_canvas; | |
| 101 RefPtr<SkSurface> m_surface; | |
| 102 OwnPtr<WebExternalTextureLayer> m_layer; | |
| 103 OwnPtr<WebGraphicsContext3DProvider> m_contextProvider; | |
| 104 ImageBuffer* m_imageBuffer; | |
| 105 int m_msaaSampleCount; | |
| 106 size_t m_bytesAllocated; | |
| 107 bool m_didRecordDrawCommand; | |
| 108 bool m_isSurfaceValid; | |
| 109 int m_framesPending; | |
| 110 int m_framesSinceMailboxRelease; | |
| 111 bool m_destructionInProgress; | |
| 112 bool m_rateLimitingEnabled; | |
| 113 bool m_isHidden; | |
| 114 | |
| 115 friend class WTF::DoublyLinkedListNode<Canvas2DLayerBridge>; | |
| 116 friend class ::Canvas2DLayerBridgeTest; | |
| 117 Canvas2DLayerBridge* m_next; | |
| 118 Canvas2DLayerBridge* m_prev; | |
| 119 | |
| 120 enum MailboxStatus { | |
| 121 MailboxInUse, | |
| 122 MailboxReleased, | |
| 123 MailboxAvailable, | |
| 124 }; | |
| 125 | |
| 126 struct MailboxInfo { | |
| 127 WebExternalTextureMailbox m_mailbox; | |
| 128 RefPtr<SkImage> m_image; | |
| 129 MailboxStatus m_status; | |
| 130 RefPtr<Canvas2DLayerBridge> m_parentLayerBridge; | |
| 131 | |
| 132 MailboxInfo(const MailboxInfo&); | |
| 133 MailboxInfo() {} | |
| 134 }; | |
| 135 MailboxInfo* createMailboxInfo(); | |
| 136 MailboxInfo* releasedMailboxInfo(); | |
| 137 | |
| 138 uint32_t m_lastImageId; | |
| 139 Vector<MailboxInfo> m_mailboxes; | |
| 140 int m_releasedMailboxInfoIndex; | |
| 141 }; | |
| 142 | |
| 143 } // namespace blink | |
| 144 | |
| 145 #endif // SKY_ENGINE_PLATFORM_GRAPHICS_CANVAS2DLAYERBRIDGE_H_ | |
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