示例#1
0
void EventCanvas::songChanged(int flags)/*{{{*/
{
    // Is it simply a midi controller value adjustment? Forget it.
    if (flags == SC_MIDI_CONTROLLER)
        return;

    if (flags & ~SC_SELECTION)
    {
        _items.clear();
        start_tick = MAXINT;
        end_tick = 0;
    _curPart = 0;

        for (iPart p = editor->parts()->begin(); p != editor->parts()->end(); ++p)
        {
            MidiPart* part = (MidiPart*) (p->second);
        if (part->sn() == _curPartId)
        _curPart = part;
            unsigned stick = part->tick();
            unsigned len = part->lenTick();
            unsigned etick = stick + len;
            if (stick < start_tick)
                start_tick = stick;
            if (etick > end_tick)
                end_tick = etick;

            EventList* el = part->events();
            for (iEvent i = el->begin(); i != el->end(); ++i)
            {
                Event e = i->second;
                if (e.isNote())
                {
                    addItem(part, e);
                }
            }
        }
    }

    Event event;
    MidiPart* part = 0;
    int x = 0;
    CItem* nevent = 0;

    int n = 0; // count selections
    for (iCItem k = _items.begin(); k != _items.end(); ++k)
    {
        Event ev = k->second->event();
        bool selected = ev.selected();
        if (selected)
        {
            k->second->setSelected(true);
            ++n;
            if (!nevent)
            {
                nevent = k->second;
                Event mi = nevent->event();
                curVelo = mi.velo();
            }
        }
    }
    start_tick = song->roundDownBar(start_tick);
    end_tick = song->roundUpBar(end_tick);

    if (n == 1)
    {
        x = nevent->x();
        event = nevent->event();
        part = (MidiPart*) nevent->part();
    if (_curPart != part)
        {
        _curPart = part;
        _curPartId = _curPart->sn();
            curPartChanged();
        }
    }
    emit selectionChanged(x, event, part);
    if (_curPart == 0)
    {
        _curPart = (MidiPart*) (editor->parts()->begin()->second);
        if(_curPart)
        {
            editor->setCurCanvasPart(_curPart);
        }
    }

    updateCItemsZValues();

    redraw();
}/*}}}*/
示例#2
0
文件: midi.cpp 项目: faesong/oom
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;
			}
		}
	}
}
示例#3
0
void LOS::processTrack(MidiTrack* track)
{
    EventList* tevents = track->events();
    if (tevents->empty())
        return;

    //---------------------------------------------------
    // Identify Parts
    // The MIDI tracks are broken up into parts
    // A new Part will be located based on track.
    // Events will be aligned on new track
    //---------------------------------------------------

    PartList* pl = track->parts();

    int lastTick = 0;
    for (iEvent i = tevents->begin(); i != tevents->end(); ++i)
    {
        Event event = i->second;
        int epos = event.tick() + event.lenTick();
        if (epos > lastTick)
            lastTick = epos;
    }

    QString partname = track->name();
    int len = song->roundUpBar(lastTick + 1);

    // p3.3.27
    if (config.importMidiSplitParts)
    {

        int bar2, beat;
        unsigned tick;
        sigmap.tickValues(len, &bar2, &beat, &tick);

        int lastOff = 0;
        int st = -1; // start tick current part
        int x1 = 0; // start tick current measure
        int x2 = 0; // end tick current measure

        for (int bar = 0; bar < bar2; ++bar, x1 = x2)
        {
            ///x2 = sigmap.bar2tick(bar+1, 0, 0);
            x2 = sigmap.bar2tick(bar + 1, 0, 0);
            if (lastOff > x2)
            {
                // this measure is busy!
                continue;
            }
            iEvent i1 = tevents->lower_bound(x1);
            iEvent i2 = tevents->lower_bound(x2);

            if (i1 == i2)
            { // empty?
                if (st != -1)
                {
                    MidiPart* part = new MidiPart(track);
                    part->setTick(st);
                    part->setLenTick(x1 - st);
                    // printf("new part %d len: %d\n", st, x1-st);
                    part->setName(partname);
                    pl->add(part);
                    st = -1;
                }
            }
            else
            {
                if (st == -1)
                    st = x1; // begin new  part
                //HACK:
                //lastOff:
                for (iEvent i = i1; i != i2; ++i)
                {
                    Event event = i->second;
                    if (event.type() == Note)
                    {
                        int off = event.tick() + event.lenTick();
                        if (off > lastOff)
                            lastOff = off;
                    }
                }
            }
        }
        if (st != -1)
        {
            MidiPart* part = new MidiPart(track);
            part->setTick(st);
            // printf("new part %d len: %d\n", st, x2-st);
            part->setLenTick(x2 - st);
            part->setName(partname);
            pl->add(part);
        }
    }
    else
    {
        // Just one long part...
        MidiPart* part = new MidiPart(track);
        //part->setTick(st);
        part->setTick(0);
        part->setLenTick(len);
        part->setName(partname);
        pl->add(part);
    }

    //-------------------------------------------------------------
    //    assign events to parts
    //-------------------------------------------------------------

    for (iPart p = pl->begin(); p != pl->end(); ++p)
    {
        MidiPart* part = (MidiPart*) (p->second);
        int stick = part->tick();
        int etick = part->tick() + part->lenTick();
        iEvent r1 = tevents->lower_bound(stick);
        iEvent r2 = tevents->lower_bound(etick);
        int startTick = part->tick();

        EventList* el = part->events();
        for (iEvent i = r1; i != r2; ++i)
        {
            Event ev = i->second;
            int ntick = ev.tick() - startTick;
            ev.setTick(ntick);
            el->add(ev);
        }
        tevents->erase(r1, r2);
    }

    if (tevents->size())
        printf("-----------events left: %zd\n", tevents->size());
    for (iEvent i = tevents->begin(); i != tevents->end(); ++i)
    {
        printf("%d===\n", i->first);
        i->second.dump();
    }
    // all events should be processed:
    assert(tevents->empty());
}
示例#4
0
文件: pyapi.cpp 项目: OpenGanesh/oom
PyObject* getParts(PyObject*, PyObject* args)
{
	TrackList* tracks = song->tracks();
	const char* trackname;
	if (!PyArg_ParseTuple(args, "s", &trackname))
	{
		return NULL;
	}

	PyObject* pyparts = Py_BuildValue("[]");
	for (ciTrack t = tracks->begin(); t != tracks->end(); ++t)
	{
		Track* track = *t;
		if (track->name() != trackname)
			continue;

		PartList* parts = track->parts();
		for (ciPart p = parts->begin(); p != parts->end(); p++)
		{
			Part* part = p->second;

			MidiPart* mpart = (MidiPart*) part;
			PyObject* pypart = PyDict_New();
			int tick = mpart->tick();
			int lentick = mpart->lenTick();
			int serialnr = mpart->sn();
			PyObject* pstrtick = Py_BuildValue("s", "tick");
			PyObject* pitick = Py_BuildValue("i", tick);
			PyObject* pstrid = Py_BuildValue("s", "id");
			PyObject* pstrserial = Py_BuildValue("i", serialnr);
			PyObject* pstrlen = Py_BuildValue("s", "len");
			PyObject* pstrtick2 = Py_BuildValue("i", lentick);

			PyDict_SetItem(pypart, pstrtick, pitick);
			PyDict_SetItem(pypart, pstrid, pstrserial);
			PyDict_SetItem(pypart, pstrlen, pstrtick2);

			Py_DECREF(pstrtick);
			Py_DECREF(pitick);
			Py_DECREF(pstrid);
			Py_DECREF(pstrserial);
			Py_DECREF(pstrlen);
			Py_DECREF(pstrtick2);

			// Pack midi events into list before wrapping it all up
			EventList* events = mpart->events();
			PyObject* pyevents = Py_BuildValue("[]");
			for (ciEvent e = events->begin(); e != events->end(); e++)
			{
				PyObject* pyevent = PyDict_New(); // The event structure - a dictionary with keys 'type','tick','data'

				const Event& event = e->second;
				unsigned tick = e->first;
				PyObject* eventdata = Py_BuildValue("[i,i,i]", event.dataA(), event.dataB(), event.dataC());
				PyObject* pstrdata = Py_BuildValue("s", "data");
				pstrtick = Py_BuildValue("s", "tick");
				PyObject* pitickval = Py_BuildValue("i", tick);
				PyDict_SetItem(pyevent, pstrdata, eventdata);
				PyDict_SetItem(pyevent, pstrtick, pitickval);
				Py_DECREF(eventdata);
				Py_DECREF(pstrdata);
				Py_DECREF(pstrtick);
				Py_DECREF(pitickval);

				switch (event.type())
				{
					case Note:
					{
						PyObject* pstrtype = Py_BuildValue("s", "type");
						PyObject* pstrnote = Py_BuildValue("s", "note");
						PyObject* pstrlen = Py_BuildValue("s", "len");
						PyObject* pilentick = Py_BuildValue("i", event.lenTick());
						PyDict_SetItem(pyevent, pstrtype, pstrnote);
						PyDict_SetItem(pyevent, pstrlen, pilentick);
						Py_DECREF(pstrtype);
						Py_DECREF(pstrnote);
						Py_DECREF(pstrlen);
						Py_DECREF(pilentick);
						break;
					}
					case Controller:
					{
						PyObject* pstrtype = Py_BuildValue("s", "type");
						PyObject* pstrctrl = Py_BuildValue("s", "ctrl");
						PyDict_SetItem(pyevent, pstrtype, pstrctrl);
						Py_DECREF(pstrtype);
						Py_DECREF(pstrctrl);
						break;
					}
					default:
						printf("Event type not supported yet: %d\n", event.type());
						break;
				}
				PyList_Append(pyevents, pyevent);
				Py_DECREF(pyevent);
			}
			Py_DECREF(pyevents);
			// Add the event list to the pypart dictionary
			PyObject* pystrevents = Py_BuildValue("s", "events");
			PyDict_SetItem(pypart, pystrevents, pyevents);
			Py_DECREF(pystrevents);
			PyList_Append(pyparts, pypart);
			Py_DECREF(pypart);
		}

		return pyparts;
	}

	return NULL;
}