func MapBufferRange(target uint32, offset int, length int, access uint32) unsafe.Pointer {
	ret, _, _ := syscall.Syscall6(gpMapBufferRange, 4, uintptr(target), uintptr(offset), uintptr(length), uintptr(access), 0, 0)
	return (unsafe.Pointer)(ret)
}
func MapBufferRange(target uint32, offset int, length int, access uint32) unsafe.Pointer {
	ret, _, _ := syscall.Syscall6(gpMapBufferRange, 4, uintptr(target), uintptr(offset), uintptr(length), uintptr(access), 0, 0)
	return (unsafe.Pointer)(ret)
}
func MapBufferRange ( target uint32 , offset int , length int , access uint32 ) unsafe . Pointer { ret , _ , _ := syscall . Syscall6 ( gpMapBufferRange , 4 , uintptr ( target ) , uintptr ( offset ) , uintptr ( length ) , uintptr ( access ) , 0 , 0 ) return ( unsafe . Pointer ) ( ret ) }
// map all or part of a buffer object's data store into the client's address space
map all or part of a buffer object s data store into the client s address space