1639 TextureEnvParameter FromGLenum<TextureEnvParameter>(GLenum from)  in FromGLenum()
1644             return TextureEnvParameter::Mode;  in FromGLenum()
1646             return TextureEnvParameter::Color;  in FromGLenum()
1648             return TextureEnvParameter::CombineRgb;  in FromGLenum()
1650             return TextureEnvParameter::CombineAlpha;  in FromGLenum()
1652             return TextureEnvParameter::RgbScale;  in FromGLenum()
1654             return TextureEnvParameter::AlphaScale;  in FromGLenum()
1656             return TextureEnvParameter::Src0Rgb;  in FromGLenum()
1658             return TextureEnvParameter::Src1Rgb;  in FromGLenum()
1660             return TextureEnvParameter::Src2Rgb;  in FromGLenum()
1662             return TextureEnvParameter::Src0Alpha;  in FromGLenum()
1664             return TextureEnvParameter::Src1Alpha;  in FromGLenum()
1666             return TextureEnvParameter::Src2Alpha;  in FromGLenum()
1668             return TextureEnvParameter::Op0Rgb;  in FromGLenum()
1670             return TextureEnvParameter::Op1Rgb;  in FromGLenum()
1672             return TextureEnvParameter::Op2Rgb;  in FromGLenum()
1674             return TextureEnvParameter::Op0Alpha;  in FromGLenum()
1676             return TextureEnvParameter::Op1Alpha;  in FromGLenum()
1678             return TextureEnvParameter::Op2Alpha;  in FromGLenum()
1680             return TextureEnvParameter::PointCoordReplace;  in FromGLenum()
1682             return TextureEnvParameter::InvalidEnum;  in FromGLenum()
1686 GLenum ToGLenum(TextureEnvParameter from)  in ToGLenum()
1690         case TextureEnvParameter::Mode:  in ToGLenum()
1692         case TextureEnvParameter::Color:  in ToGLenum()
1694         case TextureEnvParameter::CombineRgb:  in ToGLenum()
1696         case TextureEnvParameter::CombineAlpha:  in ToGLenum()
1698         case TextureEnvParameter::RgbScale:  in ToGLenum()
1700         case TextureEnvParameter::AlphaScale:  in ToGLenum()
1702         case TextureEnvParameter::Src0Rgb:  in ToGLenum()
1704         case TextureEnvParameter::Src1Rgb:  in ToGLenum()
1706         case TextureEnvParameter::Src2Rgb:  in ToGLenum()
1708         case TextureEnvParameter::Src0Alpha:  in ToGLenum()
1710         case TextureEnvParameter::Src1Alpha:  in ToGLenum()
1712         case TextureEnvParameter::Src2Alpha:  in ToGLenum()
1714         case TextureEnvParameter::Op0Rgb:  in ToGLenum()
1716         case TextureEnvParameter::Op1Rgb:  in ToGLenum()
1718         case TextureEnvParameter::Op2Rgb:  in ToGLenum()
1720         case TextureEnvParameter::Op0Alpha:  in ToGLenum()
1722         case TextureEnvParameter::Op1Alpha:  in ToGLenum()
1724         case TextureEnvParameter::Op2Alpha:  in ToGLenum()
1726         case TextureEnvParameter::PointCoordReplace:  in ToGLenum()
1734 std::ostream &operator<<(std::ostream &os, TextureEnvParameter value)  in operator <<()
1738         case TextureEnvParameter::Mode:  in operator <<()
1741         case TextureEnvParameter::Color:  in operator <<()
1744         case TextureEnvParameter::CombineRgb:  in operator <<()
1747         case TextureEnvParameter::CombineAlpha:  in operator <<()
1750         case TextureEnvParameter::RgbScale:  in operator <<()
1753         case TextureEnvParameter::AlphaScale:  in operator <<()
1756         case TextureEnvParameter::Src0Rgb:  in operator <<()
1759         case TextureEnvParameter::Src1Rgb:  in operator <<()
1762         case TextureEnvParameter::Src2Rgb:  in operator <<()
1765         case TextureEnvParameter::Src0Alpha:  in operator <<()
1768         case TextureEnvParameter::Src1Alpha:  in operator <<()
1771         case TextureEnvParameter::Src2Alpha:  in operator <<()
1774         case TextureEnvParameter::Op0Rgb:  in operator <<()
1777         case TextureEnvParameter::Op1Rgb:  in operator <<()
1780         case TextureEnvParameter::Op2Rgb:  in operator <<()
1783         case TextureEnvParameter::Op0Alpha:  in operator <<()
1786         case TextureEnvParameter::Op1Alpha:  in operator <<()
1789         case TextureEnvParameter::Op2Alpha:  in operator <<()
1792         case TextureEnvParameter::PointCoordReplace:  in operator <<()