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31 #ifndef ImageBufferSurface_h
32 #define ImageBufferSurface_h
34 #include "platform/PlatformExport.h"
35 #include "platform/geometry/IntSize.h"
36 #include "platform/graphics/GraphicsTypes3D.h"
37 #include "wtf/FastAllocBase.h"
38 #include "wtf/Noncopyable.h"
39 #include "wtf/PassRefPtr.h"
55 class PLATFORM_EXPORT ImageBufferSurface {
56 WTF_MAKE_NONCOPYABLE(ImageBufferSurface); WTF_MAKE_FAST_ALLOCATED;
58 virtual ~ImageBufferSurface() { }
60 virtual SkCanvas* canvas() const = 0;
61 virtual const SkBitmap& bitmap();
62 virtual void willAccessPixels() { }
63 virtual bool isValid() const = 0;
64 virtual bool restore() { return false; };
65 virtual WebLayer* layer() const { return 0; };
66 virtual bool isAccelerated() const { return false; }
67 virtual Platform3DObject getBackingTexture() const { return 0; }
68 virtual bool cachedBitmapEnabled() const { return false; }
69 virtual const SkBitmap& cachedBitmap() const;
70 virtual void invalidateCachedBitmap() { }
71 virtual void updateCachedBitmapIfNeeded() { }
72 virtual void setIsHidden(bool) { }
73 virtual void setImageBuffer(ImageBuffer*) { }
74 virtual PassRefPtr<SkPicture> getPicture();
75 virtual void didClearCanvas() { }
76 virtual void finalizeFrame() { }
78 OpacityMode opacityMode() const { return m_opacityMode; }
79 const IntSize& size() const { return m_size; }
80 void notifyIsValidChanged(bool isValid) const;
83 ImageBufferSurface(const IntSize&, OpacityMode);
87 OpacityMode m_opacityMode;