func MapBuffer(target uint32, access uint32) unsafe.Pointer {
	ret, _, _ := syscall.Syscall(gpMapBuffer, 2, uintptr(target), uintptr(access), 0)
	return (unsafe.Pointer)(ret)
}
func MapBuffer(target uint32, access uint32) unsafe.Pointer {
	ret, _, _ := syscall.Syscall(gpMapBuffer, 2, uintptr(target), uintptr(access), 0)
	return (unsafe.Pointer)(ret)
}
func MapBuffer ( target uint32 , access uint32 ) unsafe . Pointer { ret , _ , _ := syscall . Syscall ( gpMapBuffer , 2 , uintptr ( target ) , uintptr ( access ) , 0 ) return ( unsafe . Pointer ) ( ret ) }
// map all of a buffer object's data store into the client's address space
map all of a buffer object s data store into the client s address space