GL_EXT_texture_sRGB
http://www.opengl.org/registry/specs/EXT/texture_sRGB.txt
GL_EXT_texture_sRGB
GL_SRGB_EXT 0x8C40
GL_SRGB8_EXT 0x8C41
GL_SRGB_ALPHA_EXT 0x8C42
GL_SRGB8_ALPHA8_EXT 0x8C43
GL_SLUMINANCE_ALPHA_EXT 0x8C44
GL_SLUMINANCE8_ALPHA8_EXT 0x8C45
GL_SLUMINANCE_EXT 0x8C46
GL_SLUMINANCE8_EXT 0x8C47
GL_COMPRESSED_SRGB_EXT 0x8C48
GL_COMPRESSED_SRGB_ALPHA_EXT 0x8C49
GL_COMPRESSED_SLUMINANCE_EXT 0x8C4A
GL_COMPRESSED_SLUMINANCE_ALPHA_EXT 0x8C4B
GL_COMPRESSED_SRGB_S3TC_DXT1_EXT 0x8C4C
GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT 0x8C4D
GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT 0x8C4E
GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT 0x8C4F