code: func RenderbufferStorageMultisample(target uint32, samples int32, internalformat uint32, width int32, height int32) {
  	syscall.Syscall6(gpRenderbufferStorageMultisample, 5, uintptr(target), uintptr(samples), uintptr(internalformat), uintptr(width), uintptr(height), 0)
  }
docs: // establish data storage, format, dimensions and sample count of     a renderbuffer object's image