431 

   431 

   432 public:    

   432 public:    

   433     IMPORT_C void StoreRenderBufferL();

   433     IMPORT_C void StoreRenderBufferL();

   434     void DrawStoredVisualRenderBuffer(TInt aCanvasDrawMode) const;

   434     void DrawStoredVisualRenderBuffer(TInt aCanvasDrawMode) const;

   435     void DrawStoredFullScreenRenderBuffer(TInt aCanvasDrawMode, CHuiGc& aGc) const;

   435     void DrawStoredFullScreenRenderBuffer(TInt aCanvasDrawMode, CHuiGc& aGc) const;

   437     IMPORT_C void FreeRenderBuffer();

   436     IMPORT_C void FreeRenderBuffer();

   438     IMPORT_C TRect CommandBufferCoverage(TInt aOrientation);

   437     IMPORT_C TRect CommandBufferCoverage(TInt aOrientation);

   440 protected:

   440 protected:

   441     virtual void VisualExtension(const TUid& aExtensionUid, TAny** aExtensionParams);

   441     virtual void VisualExtension(const TUid& aExtensionUid, TAny** aExtensionParams);

   442 

   442 

   443 private:

   443 private:

   444        

   444        

   454     

   454     

   455     TBool CollectPaintedRegion(TRegion& aRecursivePaintRegion, TInt aExcludeCanvasFlags) const;

   455     TBool CollectPaintedRegion(TRegion& aRecursivePaintRegion, TInt aExcludeCanvasFlags) const;

   456     TBool CollectRecursivePaintedRegion(TRegion& aRecursivePaintRegion, TInt aExcludeCanvasFlags) const;

   456     TBool CollectRecursivePaintedRegion(TRegion& aRecursivePaintRegion, TInt aExcludeCanvasFlags) const;

   457     

   457     

   458     TBool CanSkipDrawing() const;

   458     TBool CanSkipDrawing() const;

   460     TBool EffectReadyToDrawNextFrame() const; 

   459     TBool EffectReadyToDrawNextFrame() const; 

   461 

   460 

   462 private: 

   461 private: 

   463 

   462 

   464     struct THuiCanvasVisualData;

   463     struct THuiCanvasVisualData;