#ifndef OSG_TEXENV
#define OSG_TEXENV 1

#include <osg/Export>
#include <osg/GL>
#include <osg/Object>

namespace osg {


class SG_EXPORT TexEnv : public Object
{
    public :

        enum TexEnvMode {
            DECAL     = GL_DECAL,
            MODULATE  = GL_MODULATE,
            BLEND     = GL_BLEND
        };

        TexEnv( void );
        static TexEnv* instance();
        virtual Object* clone() const { return new TexEnv(); }
        virtual bool isSameKindAs(Object* obj) { return dynamic_cast<TexEnv*>(obj)!=NULL; }
        virtual const char* className() const { return "TexEnv"; }


        void setMode( TexEnvMode mode );
        void apply( void );

    protected :

        virtual ~TexEnv( void );
        virtual bool readLocalData(Input& fr);
        virtual bool writeLocalData(Output& fw);

        bool matchModeStr(const char* str,TexEnvMode& mode);
        const char* getModeStr(TexEnvMode mode);

        TexEnvMode _mode;
};

};

#endif