GL_APPLE_texture_packed_float
http://www.opengl.org/registry/specs/APPLE/texture_packed_float.txt
GL_APPLE_texture_packed_float

	GL_R11F_G11F_B10F_APPLE 0x8C3A
	GL_UNSIGNED_INT_10F_11F_11F_REV_APPLE 0x8C3B
	GL_RGB9_E5_APPLE 0x8C3D
	GL_UNSIGNED_INT_5_9_9_9_REV_APPLE 0x8C3E