int JackWinMMEDriver::Write()
{
for (int chan = 0; chan < fPlaybackChannels; chan++) {
if (fGraphManager->GetConnectionsNum(fPlaybackPortList[chan]) > 0) {
JackMidiBuffer* midi_buffer = GetOutputBuffer(chan);
// TODO : use timestamp
for (unsigned int j = 0; j < midi_buffer->event_count; j++) {
JackMidiEvent* ev = &midi_buffer->events[j];
if (ev->size <= 3) {
jack_midi_data_t *d = ev->GetData(midi_buffer);
DWORD winev = 0;
if (ev->size > 0) winev |= d[0];
if (ev->size > 1) winev |= (d[1] << 8);
if (ev->size > 2) winev |= (d[2] << 16);
MMRESULT res = midiOutShortMsg((HMIDIOUT)fMidiSource[chan].fHandle, winev);
if (res != MMSYSERR_NOERROR)
jack_error ("midiOutShortMsg error res %d", res);
} else {
}
}
}
}
return 0;
}
jack_midi_event_t *
JackMidiBufferReadQueue::DequeueEvent()
{
jack_midi_event_t *e = 0;
if (index < event_count) {
JackMidiEvent *event = &(buffer->events[index]);
midi_event.buffer = event->GetData(buffer);
midi_event.size = event->size;
midi_event.time = last_frame_time + event->time;
e = &midi_event;
index++;
}
return e;
}
LIB_EXPORT
int jack_midi_event_get(jack_midi_event_t *event, void* port_buffer, uint32_t event_index)
{
JackMidiBuffer *buf = (JackMidiBuffer*)port_buffer;
if (!buf || !buf->IsValid()) {
return -EINVAL;
}
if (event_index >= buf->event_count) {
return -ENOBUFS;
}
JackMidiEvent* ev = &buf->events[event_index];
event->time = ev->time;
event->size = ev->size;
event->buffer = ev->GetData(buf);
return 0;
}