C++ MidiDevice::midiPort方法代码示例

void MidiSeq::updatePollFd()
      {
      if (!isRunning())
            return;

      clearPollFd();
      addPollFd(timerFd, POLLIN, midiTick, this, 0);

      if (timerFd == -1) {
            fprintf(stderr, "updatePollFd: no timer fd\n");
            if (!MusEGlobal::debugMode)
                  exit(-1);
            }

      addPollFd(toThreadFdr, POLLIN, MusECore::readMsg, this, 0);

      //---------------------------------------------------
      //  midi ports
      //---------------------------------------------------

      for (iMidiDevice imd = MusEGlobal::midiDevices.begin(); imd != MusEGlobal::midiDevices.end(); ++imd) {
            MidiDevice* dev = *imd;
            int port = dev->midiPort();
            if (port == -1)
                  continue;
            if ((dev->rwFlags() & 0x2) || (MusEGlobal::extSyncFlag.value()
               && (MusEGlobal::midiPorts[port].syncInfo().MCIn())))
                  addPollFd(dev->selectRfd(), POLLIN, MusECore::midiRead, this, dev);
            if (dev->bytesToWrite())
                  addPollFd(dev->selectWfd(), POLLOUT, MusECore::midiWrite, this, dev);
            }
      // special handling for alsa midi:
      // (one fd for all devices)
      //    this allows for processing of some alsa events
      //    even if no alsa driver is active (assigned to a port)
      addPollFd(alsaSelectRfd(), POLLIN, MusECore::alsaMidiRead, this, 0);
      }

QWidget* MenuList::createWidget(QWidget* parent)
{
	if(!_track)
		return 0;
	//if(!_track->isMidiTrack() || _track->type() != Track::AUDIO_SOFTSYNTH)
	//	return 0;
	MidiTrack* track = (MidiTrack*) _track;

	MidiDevice* md = 0;
	int port = -1;
	if (track->type() == Track::AUDIO_SOFTSYNTH)
	{
		md = dynamic_cast<MidiDevice*> (track);
		if (md)
			port = md->midiPort();
	}
	else
		port = track->outPort();
	list = new QListWidget(parent);
	list->setSelectionMode(QAbstractItemView::SingleSelection);
	list->setAlternatingRowColors(true);
	list->setEditTriggers(QAbstractItemView::NoEditTriggers);
	list->setFixedHeight(300);
	for (int i = 0; i < MIDI_PORTS; ++i)
	{
		QString name;
		name.sprintf("%d:%s", i + 1, midiPorts[i].portname().toLatin1().constData());
		list->insertItem(i, name);
		if (i == port)
			list->setCurrentRow(i);
	}
	connect(list, SIGNAL(itemPressed(QListWidgetItem*)), this, SLOT(updateData(QListWidgetItem*)));
	//connect(list, SIGNAL(itemClicked(QListWidgetItem*)), this, SLOT(updateData(QListWidgetItem*)));
	//connect(list, SIGNAL(itemActivated(QListWidgetItem*)), this, SLOT(updateData(QListWidgetItem*)));
	return list;
}

void Route::read(Xml& xml)/*{{{*/
{
	QString s;
	int dtype = MidiDevice::ALSA_MIDI;
	int port = -1;
	unsigned char rtype = Route::TRACK_ROUTE;

	for (;;)
	{
		const QString& tag = xml.s1();
		Xml::Token token = xml.parse();
		switch (token)
		{
			case Xml::Error:
			case Xml::End:
				return;
			case Xml::Attribut:
#ifdef ROUTE_DEBUG
				printf("Route::read(): attribute:%s\n", tag.toLatin1().constData());
#endif
				if (tag == "type")
					rtype = xml.s2().toInt();
				else if (tag == "devtype")
				{
					dtype = xml.s2().toInt();
					rtype = Route::MIDI_DEVICE_ROUTE;
				}
				else if (tag == "name")
					s = xml.s2();
				else if(tag == "trackId")
				{
					trackId = xml.s2().toLongLong();
					rtype = Route::TRACK_ROUTE;
				}
				else if (tag == "mport") // p3.3.49
				{
					port = xml.s2().toInt();
					rtype = Route::MIDI_PORT_ROUTE;
				}
				else if(tag == "mportId")
				{
					midiPortId  = xml.s2().toLongLong();
					rtype = Route::MIDI_PORT_ROUTE;
				}
				else
					printf("Route::read(): unknown attribute:%s\n", tag.toLatin1().constData());
				break;
			case Xml::TagEnd:
#ifdef ROUTE_DEBUG
				printf("Route::read(): tag end type:%d channel:%d name:%s\n", rtype, channel, s.toLatin1().constData());
#endif
				if (rtype == MIDI_PORT_ROUTE)
				{
					if(midiPortId > 0)
					{
						//qDebug("Route::read(): MIDI_PORT_ROUTE Finding midiport from id");
						type = rtype;
						MidiPort *mp = oomMidiPorts.value(midiPortId);
						if(mp)
						{
							midiPort = mp->portno();
							//qDebug("Route::read(): Found midiport from id: %d", midiPort);
						}
					}
					else if (port >= 0 && port < MIDI_PORTS)
					{
						type = rtype;
						midiPort = port;
						MidiPort *mp = &midiPorts[midiPort];
						midiPortId = mp->id();
					}
					else
						printf("Route::read(): midi port <%d> out of range\n", port);
				}
				else if (!s.isEmpty())
				{
					if (rtype == TRACK_ROUTE)
					{
						if(trackId > 0)
						{
							track = song->findTrackById(trackId);
							type = rtype;
						}
						else
						{
							TrackList* tl = song->tracks();
							iTrack i = tl->begin();
							for (; i != tl->end(); ++i)
							{
								Track* t = *i;
								if (t->name() == s)
								{
									track = t;
									type = rtype;
									trackId = t->id();
									break;
								}
							}
							if (i == tl->end())
								printf("Route::read(): track <%s> not found\n", s.toLatin1().constData());
//.........这里部分代码省略.........