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#ifndef __RAS_I2DFILTER
#define __RAS_I2DFILTER
#define MAX_RENDER_PASS 100
class RAS_2DFilterManager
{
private:
unsigned int CreateShaderProgram(char* shadersource);
unsigned int CreateShaderProgram(int filtermode);
void StartShaderProgram(int filtermode);
void EndShaderProgram();
float textureoffsets[18];
float view[4];
unsigned int texname;
int texturewidth;
int textureheight;
int canvaswidth;
int canvasheight;
int numberoffilters;
bool isshadersupported;
public:
enum RAS_2DFILTER_MODE {
RAS_2DFILTER_NOFILTER = 0,
RAS_2DFILTER_MOTIONBLUR,
RAS_2DFILTER_BLUR,
RAS_2DFILTER_SHARPEN,
RAS_2DFILTER_DILATION,
RAS_2DFILTER_EROSION,
RAS_2DFILTER_LAPLACIAN,
RAS_2DFILTER_SOBEL,
RAS_2DFILTER_PREWITT,
RAS_2DFILTER_GRAYSCALE,
RAS_2DFILTER_SEPIA,
RAS_2DFILTER_INVERT,
RAS_2DFILTER_NUMBER_OF_FILTERS
};
int m_filters[MAX_RENDER_PASS];
unsigned int m_programs[RAS_2DFILTER_NUMBER_OF_FILTERS];
RAS_2DFilterManager();
~RAS_2DFilterManager();
void SetupTexture();
void UpdateOffsetMatrix(int width, int height);
void RenderFilters(RAS_ICanvas* canvas);
void EnableFilter(RAS_2DFILTER_MODE mode, int pass);
};
#endif
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