Example #1
0
// Write writes a buffer of MIDI events to the output stream.
func (s *Stream) Write(events []Event) error {
	size := len(events)
	if size > maxEventBufferSize {
		return ErrMaxBuffer
	}
	buffer := make([]C.PmEvent, size)
	for i, evt := range events {
		var event C.PmEvent
		event.timestamp = C.PmTimestamp(evt.Timestamp)
		event.message = C.PmMessage((((evt.Data2 << 16) & 0xFF0000) | ((evt.Data1 << 8) & 0xFF00) | (evt.Status & 0xFF)))
		buffer[i] = event
	}
	return convertToError(C.Pm_Write(unsafe.Pointer(s.pmStream), &buffer[0], C.int32_t(size)))
}
Example #2
0
// WriteSysExBytes writes a system exclusive MIDI message given as a []byte to the output stream.
func (s *Stream) WriteSysExBytes(when Timestamp, msg []byte) error {
	return convertToError(C.Pm_WriteSysEx(unsafe.Pointer(s.pmStream), C.PmTimestamp(when), (*C.uchar)(unsafe.Pointer(&msg[0]))))
}
Example #3
0
// Writes a system exclusive MIDI message to the output stream.
func (s *Stream) WriteSysEx(when Timestamp, msg string) error {
	return convertToError(C.Pm_WriteSysEx(unsafe.Pointer(s.pmStream), C.PmTimestamp(when), nil))
}