C:/Users/weinma/Development/VisFlowRenderer/VisFlowRenderer/Tools/CGShaderManager.hpp

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#pragma once

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

#include <boost/any.hpp>

#include <map>
#include <string>

#include "Tools/Exception.hpp"

namespace Tool {

        typedef Exception CGShaderManagerException;
        typedef enum {
                Shader_Vertex = 0,
                Shader_Fragment = 1 
        } ShaderType;

        typedef std::map<std::string,CGparameter> CGParameterList;

        typedef struct {
                std::string name;
                ShaderType type;
                CGprogram program;
                CGprofile profile;
                CGParameterList parameters;
        } CGProgram;

        class CGShaderManager {
        private:
                CGcontext context;
                std::map<std::string,CGProgram> shaders;
                
                static CGShaderManager *instance;
                CGShaderManager();

        public:
                static CGShaderManager &getInstance();

                void initialise();

                CGProgram createProgram(        const std::string &name,
                                                                        const ShaderType &shadertype,
                                                                        const CGenum &sourcetype,
                                                                        const std::string &programfilename,
                                                                        const CGParameterList parameters = CGParameterList(),
                                                                        const std::string &mainroutine = "main",
                                                                        const char** args = NULL );

                void destroyProgram( const std::string &name );

                void bindProgram( const std::string &name );
                void unbindProgram( const std::string &name );
        };

}

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