#ifndef __NV_STD_VERTEX_SHADER_H__
#define __NV_STD_VERTEX_SHADER_H__

#include "NvShader.h"

class NvStdVertexShader : public NvShader {
    /**
     * @brief A parameter id for ModelViewProjection matrix of Cg program
     */
    CGparameter _mvp_vert_std_param;

    /** 
     * @brief A parameter id for ModelViewInverse matrix of Cg program
     */
    CGparameter _mvi_vert_std_param;

public :
    /**
     * @brief Constructor
     */
    NvStdVertexShader();

    /**
     * @brief Destructor
     */
    ~NvStdVertexShader();
private :
    void init();

public :
    void bind();
    void unbind();
};

inline void NvStdVertexShader::bind()
{
    cgGLSetStateMatrixParameter(_mvp_vert_std_param, CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
    cgGLSetStateMatrixParameter(_mvi_vert_std_param, CG_GL_MODELVIEW_MATRIX, CG_GL_MATRIX_INVERSE);
    cgGLBindProgram(_cgVP);
    cgGLEnableProfile(CG_PROFILE_VP30);

}

inline void NvStdVertexShader::unbind()
{
    cgGLDisableProfile(CG_PROFILE_VP30);
}

#endif