D:/Uni/8.Semester/InfoVis/Demo/source/Main/ShaderManager.h

#ifndef __SHADERMANAGER__H__
#define __SHADERMANAGER__H__

#include <Cg/cg.h>
#include <Cg/cgGL.h>

#include "../Util/Singleton.h"

class Light;

class ShaderManager : public Singleton<ShaderManager>
{
        friend class Singleton<ShaderManager>;

public:
        enum SHADER_PARAMETER
        {
                SHADER_BACKGROUND_MAP,
                SHADER_ALPHA_MAP,
                SHADER_MIN_MAX_MAP,
                SHADER_COLOR_MAP,
        };

        ShaderManager(void);
        ~ShaderManager(void);

        void Init(void);

        void EnableShader(const char* passName = "");

        void DisableShader();

        void EnableTextureParameter(SHADER_PARAMETER parameter);

        void SetParameterTexture(SHADER_PARAMETER parameter, unsigned int texture);

        void SetParameter1i(SHADER_PARAMETER parameter, int x);

        void SetParameter1f(SHADER_PARAMETER parameter, float x);

        void SetParameter2fv(SHADER_PARAMETER parameter, const float* v);

        void SetParameter3fv(SHADER_PARAMETER parameter, const float* v);

        void SetParameter4fv(SHADER_PARAMETER parameter, const float* v);

        void SetParameterArray1f(SHADER_PARAMETER parameter, const float* v);

        void SetParameterArray2f(SHADER_PARAMETER parameter, const float* v);

        void SetMatrixParameterfc(SHADER_PARAMETER parameter, float* matrix);

        void Exit(void);

private:
        void CheckForCgError(const char *situation);

        CGcontext context;


        CGeffect cgEffect;
        CGtechnique cgTechnique;
        CGpass cgPass;

        CGparameter shaderBackgroundMap;
        CGparameter shaderAlphaMap;
        CGparameter shaderMinMaxMap;
        CGparameter shaderColorMap;

        CGparameter shaderTreeNodePosTexture;
        CGparameter shaderNodePosTexSize;
        CGparameter shaderControlPolygon;
        CGparameter shaderControlPolygonSize;
        CGparameter shaderAlpha;
        CGparameter shaderBeta;
};

#endif

---