void Audio::collectEvents(MidiTrack* track, unsigned int cts, unsigned int nts)
{
int port = track->outPort();
int channel = track->outChannel();
int defaultPort = port;
MidiDevice* md = midiPorts[port].device();
MPEventList* playEvents = md->playEvents();
MPEventList* stuckNotes = md->stuckNotes();
PartList* pl = track->parts();
for (iPart p = pl->begin(); p != pl->end(); ++p)
{
MidiPart* part = (MidiPart*) (p->second);
// dont play muted parts
if (part->mute())
continue;
EventList* events = part->events();
unsigned partTick = part->tick();
unsigned partLen = part->lenTick();
int delay = track->delay;
if (cts > nts)
{
printf("processMidi: FATAL: cur > next %d > %d\n",
cts, nts);
return;
}
unsigned offset = delay + partTick;
if (offset > nts)
continue;
unsigned stick = (offset > cts) ? 0 : cts - offset;
unsigned etick = nts - offset;
// By T356. Do not play events which are past the end of this part.
if (etick > partLen)
continue;
iEvent ie = events->lower_bound(stick);
iEvent iend = events->lower_bound(etick);
for (; ie != iend; ++ie)
{
Event ev = ie->second;
port = defaultPort; //Reset each loop
//
// dont play any meta events
//
if (ev.type() == Meta)
continue;
if (track->type() == Track::DRUM)
{
int instr = ev.pitch();
// ignore muted drums
if (ev.isNote() && drumMap[instr].mute)
continue;
}
unsigned tick = ev.tick() + offset;
unsigned frame = tempomap.tick2frame(tick) + frameOffset;
switch (ev.type())
{
case Note:
{
int len = ev.lenTick();
int pitch = ev.pitch();
int velo = ev.velo();
if (track->type() == Track::DRUM)
{
//
// Map drum-notes to the drum-map values
//
int instr = ev.pitch();
pitch = drumMap[instr].anote;
port = drumMap[instr].port; //This changes to non-default port
channel = drumMap[instr].channel;
velo = int(double(velo) * (double(drumMap[instr].vol) / 100.0));
}
else
{
//
// transpose non drum notes
//
pitch += (track->transposition + song->globalPitchShift());
}
if (pitch > 127)
pitch = 127;
if (pitch < 0)
pitch = 0;
velo += track->velocity;
velo = (velo * track->compression) / 100;
if (velo > 127)
velo = 127;
if (velo < 1) // no off event
velo = 1;
len = (len * track->len) / 100;
if (len <= 0) // dont allow zero length
len = 1;
int veloOff = ev.veloOff();
if (port == defaultPort)
{
//printf("Adding event normally: frame=%d port=%d channel=%d pitch=%d velo=%d\n",frame, port, channel, pitch, velo);
// p3.3.25
// If syncing to external midi sync, we cannot use the tempo map.
// Therefore we cannot get sub-tick resolution. Just use ticks instead of frames.
if (extSyncFlag.value())
playEvents->add(MidiPlayEvent(tick, port, channel, 0x90, pitch, velo));
else
playEvents->add(MidiPlayEvent(frame, port, channel, 0x90, pitch, velo));
stuckNotes->add(MidiPlayEvent(tick + len, port, channel,
veloOff ? 0x80 : 0x90, pitch, veloOff));
}
else
{ //Handle events to different port than standard.
MidiDevice* mdAlt = midiPorts[port].device();
if (mdAlt)
{
// p3.3.25
if (extSyncFlag.value())
mdAlt->playEvents()->add(MidiPlayEvent(tick, port, channel, 0x90, pitch, velo));
else
mdAlt->playEvents()->add(MidiPlayEvent(frame, port, channel, 0x90, pitch, velo));
mdAlt->stuckNotes()->add(MidiPlayEvent(tick + len, port, channel,
veloOff ? 0x80 : 0x90, pitch, veloOff));
}
}
if (velo > track->activity())
track->setActivity(velo);
}
break;
// Added by T356.
case Controller:
{
//int len = ev.lenTick();
//int pitch = ev.pitch();
if (track->type() == Track::DRUM)
{
int ctl = ev.dataA();
// Is it a drum controller event, according to the track port's instrument?
MidiController *mc = midiPorts[defaultPort].drumController(ctl);
if (mc)
{
int instr = ctl & 0x7f;
ctl &= ~0xff;
int pitch = drumMap[instr].anote & 0x7f;
port = drumMap[instr].port; //This changes to non-default port
channel = drumMap[instr].channel;
MidiDevice* mdAlt = midiPorts[port].device();
if (mdAlt)
{
// p3.3.25
// If syncing to external midi sync, we cannot use the tempo map.
// Therefore we cannot get sub-tick resolution. Just use ticks instead of frames.
if (extSyncFlag.value())
mdAlt->playEvents()->add(MidiPlayEvent(tick, port, channel,
ME_CONTROLLER, ctl | pitch, ev.dataB()));
else
//playEvents->add(MidiPlayEvent(frame, port, channel, ev));
mdAlt->playEvents()->add(MidiPlayEvent(frame, port, channel,
ME_CONTROLLER, ctl | pitch, ev.dataB()));
}
break;
}
}
// p3.3.25
if (extSyncFlag.value())
playEvents->add(MidiPlayEvent(tick, port, channel, ev));
else
playEvents->add(MidiPlayEvent(frame, port, channel, ev));
}
break;
default:
// p3.3.25
if (extSyncFlag.value())
playEvents->add(MidiPlayEvent(tick, port, channel, ev));
else
playEvents->add(MidiPlayEvent(frame, port, channel, ev));
break;
}
}
}
}
