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32 #ifndef WebGLLayerChromium_h
33 #define WebGLLayerChromium_h
35 #if USE(ACCELERATED_COMPOSITING)
37 #include "CanvasLayerChromium.h"
38 #include "DrawingBuffer.h"
42 class GraphicsContext3D;
43 class WebGLLayerChromiumRateLimitTask;
45 // A Layer containing a WebGL canvas
46 class WebGLLayerChromium : public CanvasLayerChromium {
48 static PassRefPtr<WebGLLayerChromium> create(CCLayerDelegate* = 0);
50 virtual ~WebGLLayerChromium();
52 virtual bool drawsContent() const;
53 virtual void updateCompositorResources(GraphicsContext3D*, CCTextureUpdater&);
54 virtual void contentChanged();
55 bool paintRenderedResultsToCanvas(ImageBuffer*);
57 GraphicsContext3D* context() const;
59 void setDrawingBuffer(DrawingBuffer*);
60 DrawingBuffer* drawingBuffer() const { return m_drawingBuffer; }
62 explicit WebGLLayerChromium(CCLayerDelegate*);
63 friend class WebGLLayerChromiumRateLimitTask;
65 GraphicsContext3D* layerRendererContext();
67 bool m_textureChanged;
68 bool m_textureUpdated;
70 // The DrawingBuffer holding the WebGL contents for this layer.
71 // A reference is not held here, because the DrawingBuffer already holds
72 // a reference to the WebGLLayerChromium.
73 DrawingBuffer* m_drawingBuffer;
77 #endif // USE(ACCELERATED_COMPOSITING)