typedef enum eImageFormat
{
    kCCImageFormatJPEG       = 0,
    kCCImageFormatPNG       = 1,
} tImageFormat;

class CCRenderTexture : public CCNode
{
    CCSprite* getSprite();
    void setSprite(CCSprite* psprite);

    void begin();
    void endToLua();
    void beginWithClear(float r, float g, float b, float a);

    void clear(float r, float g, float b, float a);
 
    CCImage* newCCImage();
 
    bool saveToFile(const char *szFilePath);
    bool saveToFile(const char *name, tCCImageFormat format);

    static CCRenderTexture * renderTextureWithWidthAndHeight(int w, int h, CCTexture2DPixelFormat eFormat);
    static CCRenderTexture * renderTextureWithWidthAndHeight(int w, int h);
};