C++ MidiDevice::setNextPlayEvent方法代码示例

void Audio::preloadControllers()/*{{{*/
{
	midiBusy = true;

	MidiTrackList* tracks = song->midis();
	for (iMidiTrack it = tracks->begin(); it != tracks->end(); ++it)
	{
		MidiTrack* track = *it;
		//activePorts[track->outPort()] = true;
		QList<ProcessList*> pcevents;

		int port = track->outPort();
		int channel = track->outChannel();
		int defaultPort = port;

		MidiDevice* md = midiPorts[port].device();
		if (!md)
		{
			continue;
		}
		MPEventList* playEvents = md->playEvents();
		playEvents->erase(playEvents->begin(), playEvents->end());

		PartList* pl = track->parts();
		for (iPart p = pl->begin(); p != pl->end(); ++p)
		{
			MidiPart* part = (MidiPart*) (p->second);
			EventList* events = part->events();
			unsigned partTick = part->tick();
			//unsigned partLen = part->lenTick();
			int delay = track->delay;

			unsigned offset = delay + partTick;

			for (iEvent ie = events->begin(); ie != events->end(); ++ie)
			{
				Event ev = ie->second;
				port = defaultPort;
				unsigned tick = ev.tick() + offset;
				//unsigned frame = tempomap.tick2frame(tick) + frameOffset;
				switch (ev.dataA())
				{
					case CTRL_PROGRAM:
					{
						ProcessList *pl = new ProcessList;
						pl->port = port;
						pl->channel = channel;
						pl->dataB = ev.dataB();
						bool addEvent = true;
						for(int i = 0; i < pcevents.size(); ++i)
						{
							ProcessList* ipl = pcevents.at(i);
							if(ipl->port == pl->port && ipl->channel == pl->channel && ipl->dataB == pl->dataB)
							{
								addEvent = false;
								break;
							}
						}
						if(addEvent)
						{
							printf("Audio::preloadControllers() Loading event @ tick: %d - on channel: %d - on port: %d - dataA: %d - dataB: %d\n",
								tick, channel, port, ev.dataA(), ev.dataB());
							pcevents.append(pl);
							playEvents->add(MidiPlayEvent(tick, port, channel, ev));
						}
					}
						break;
					default:
						break;
				}
			}
		}
		md->setNextPlayEvent(playEvents->begin());
	}
	midiBusy = false;
}/*}}}*/

//.........这里部分代码省略.........
										//  different port. This must have been wrong - buildMidiEventList would ignore this.
										//drumRecEvent.setPort(devport);
										drumRecEvent.setPort(port); //rec-event to current port

										drumRecEvent.setChannel(track->outChannel()); //rec-event to current channel
										rl->add(drumRecEvent);
									}
								}
								else
								{
									//printf("ccccccccccccccccccccccccccccccccccccccccccccc\n");
									// Restore record-pitch to non-transposed value since we don't want the note transposed twice next
									MidiPlayEvent recEvent = event;
									if (prePitch)
										recEvent.setA(prePitch);
									if (preVelo)
										recEvent.setB(preVelo);
									recEvent.setPort(port);
									recEvent.setChannel(track->outChannel());

									rl->add(recEvent);
								}
							}
						}
					}
				}
			}
		}
		// Added by Tim. p3.3.8
		if (md)
		{
			//printf("zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz\n");

			md->setNextPlayEvent(playEvents->begin());
		}
	}

	//
	// clear all recorded events in midiDevices
	// process stuck notes
	//
	for (iMidiDevice id = midiDevices.begin(); id != midiDevices.end(); ++id)
	{
		//printf("--------------------------aaaaaaaaaaaaaaaaaaaaaaaaaaaa\n");
		MidiDevice* md = *id;

		///md->recordEvents()->clear();
		// By T356. Done processing this rec buffer, now flip to the other one.
		///md->flipRecBuffer();
		// We are done with the 'frozen' recording fifos, remove the events.
		md->afterProcess();

		MPEventList* stuckNotes = md->stuckNotes();
		MPEventList* playEvents = md->playEvents();

		iMPEvent k;
		for (k = stuckNotes->begin(); k != stuckNotes->end(); ++k)
		{
			if (k->time() >= nextTickPos)
				break;
			MidiPlayEvent ev(*k);

			// p3.3.25
			//int frame = tempomap.tick2frame(k->time()) + frameOffset;
			if (extsync)
			{