func PolygonMode(face uint32, mode uint32) {
	syscall.Syscall(gpPolygonMode, 2, uintptr(face), uintptr(mode), 0)
}
func PolygonMode(face uint32, mode uint32) {
	syscall.Syscall(gpPolygonMode, 2, uintptr(face), uintptr(mode), 0)
}
func PolygonMode ( face uint32 , mode uint32 ) { syscall . Syscall ( gpPolygonMode , 2 , uintptr ( face ) , uintptr ( mode ) , 0 ) }
// select a polygon rasterization mode
select a polygon rasterization mode