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26 #ifndef Canvas2DLayerBridge_h
27 #define Canvas2DLayerBridge_h
29 #include "GraphicsContext3D.h"
30 #include "ImageBuffer.h" // For DeferralMode enum.
32 #include "SkDeferredCanvas.h"
33 #include <public/WebExternalTextureLayer.h>
34 #include <public/WebExternalTextureLayerClient.h>
35 #include <wtf/PassOwnPtr.h>
36 #include <wtf/RefPtr.h>
39 class WebGraphicsContext3D;
46 class Canvas2DLayerBridge : public WebKit::WebExternalTextureLayerClient, public SkDeferredCanvas::NotificationClient {
47 WTF_MAKE_NONCOPYABLE(Canvas2DLayerBridge);
49 static PassOwnPtr<Canvas2DLayerBridge> create(PassRefPtr<GraphicsContext3D> context, const IntSize& size, DeferralMode deferralMode, unsigned textureId)
51 return adoptPtr(new Canvas2DLayerBridge(context, size, deferralMode, textureId));
54 virtual ~Canvas2DLayerBridge();
56 // WebKit::WebExternalTextureLayerClient implementation.
57 virtual unsigned prepareTexture(WebKit::WebTextureUpdater&) OVERRIDE;
58 virtual WebKit::WebGraphicsContext3D* context() OVERRIDE;
60 // SkDeferredCanvas::NotificationClient implementation
61 virtual void prepareForDraw();
63 SkCanvas* skCanvas(SkDevice*);
64 WebKit::WebLayer* layer();
65 void contextAcquired();
67 unsigned backBufferTexture();
70 Canvas2DLayerBridge(PassRefPtr<GraphicsContext3D>, const IntSize&, DeferralMode, unsigned textureId);
71 SkDeferredCanvas* deferredCanvas();
73 DeferralMode m_deferralMode;
74 bool m_useDoubleBuffering;
75 unsigned m_frontBufferTexture;
76 unsigned m_backBufferTexture;
79 WebKit::WebExternalTextureLayer m_layer;
80 RefPtr<GraphicsContext3D> m_context;