GAFSpriteWithAlpha.h

#pragma once

#ifndef __GAF_SPRITE_WITH_ALPHA__
#define __GAF_SPRITE_WITH_ALPHA__

#include "GAFSprite.h"

using namespace cocos2d;

#define kGAFSpriteWithAlphaShaderProgramCacheKey  "kGAFSpriteWithAlphaShaderProgramCache"

class GAFSpriteWithAlpha : public GAFSprite
{
public:
    GAFSpriteWithAlpha();
    ~GAFSpriteWithAlpha();
    virtual void setUniformsForFragmentShader();
    virtual bool initWithTexture(CCTexture2D *pTexture, const CCRect& rect, bool rotated);
    static CCGLProgram * programForShader();
    void setColorTransform(const GLfloat * mults, const GLfloat * offsets);
    const GLfloat * getColorTransform() const
    {
        return _colorTransform;
    }
    void setColorTransform(const GLfloat * colorTransform);
    void setBlurRadius(const CCSize& blurRadius);
protected:
    void updateTextureWithEffects();
private:
    void _setBlendingFunc();
    GLfloat _colorTransform[8]; // 0-3 mults, 4-7 offsets
    CCSize   _blurRadius;
    CCTexture2D * _initialTexture;
    CCRect        _initialTextureRect;
};

#endif // __GAF_SPRITE_WITH_ALPHA__