func RenderMode(mode uint32) int32 {
	ret, _, _ := syscall.Syscall(gpRenderMode, 1, uintptr(mode), 0, 0)
	return (int32)(ret)
}
func RenderMode(mode uint32) int32 {
	ret, _, _ := syscall.Syscall(gpRenderMode, 1, uintptr(mode), 0, 0)
	return (int32)(ret)
}
// set rasterization mode