#pragma once

#include <Cg/cg.h>

namespace NWasp
{
    class CCgContext
    {
    private:
                                CCgContext                  ( );
                                ~CCgContext                 ( );
                                CCgContext                  ( const CCgContext& )                           = delete;
                CCgContext&     operator =                  ( const CCgContext& )                           = delete;

        static CCgContext* s_instance;
    public:
        //
        // Singleton functions
        //
        static  bool            Create                      ( );
        static  CCgContext*     Instance                    ( );
        static  void            Destroy                     ( );

        //
        // Callbacks
        //
        static  void            CgErrorCallback             ( );

        //
        // Getters
        //
                CGcontext       GetCgContext                ( )                                     const;

    private:
        //
        // States
        //

        static  CGbool          StateRenderSceneSet         ( CGstateassignment state_assignment );

        static  CGbool          StateRenderSceneReset       ( CGstateassignment state_assignment );

        static  CGbool          StateRenderSceneValidate    ( CGstateassignment state_assignment );

    private:
        CGcontext   m_cgContext;
    };
};