void Song::processNextBuffer()
{
// if not playing, nothing to do
if( m_playing == false )
{
return;
}
TrackList trackList;
int tcoNum = -1; // track content object number
// determine the list of tracks to play and the track content object
// (TCO) number
switch( m_playMode )
{
case Mode_PlaySong:
trackList = tracks();
// at song-start we have to reset the LFOs
if( m_playPos[Mode_PlaySong] == 0 )
{
EnvelopeAndLfoParameters::instances()->reset();
}
break;
case Mode_PlayBB:
if( Engine::getBBTrackContainer()->numOfBBs() > 0 )
{
tcoNum = Engine::getBBTrackContainer()->
currentBB();
trackList.push_back( BBTrack::findBBTrack(
tcoNum ) );
}
break;
case Mode_PlayPattern:
if( m_patternToPlay != NULL )
{
tcoNum = m_patternToPlay->getTrack()->
getTCONum( m_patternToPlay );
trackList.push_back(
m_patternToPlay->getTrack() );
}
break;
default:
return;
}
// if we have no tracks to play, nothing to do
if( trackList.empty() == true )
{
return;
}
// check for looping-mode and act if necessary
TimeLineWidget * tl = m_playPos[m_playMode].m_timeLine;
bool checkLoop =
tl != NULL && m_exporting == false && tl->loopPointsEnabled();
if( checkLoop )
{
// if looping-mode is enabled and we are outside of the looping
// range, go to the beginning of the range
if( m_playPos[m_playMode] < tl->loopBegin() ||
m_playPos[m_playMode] >= tl->loopEnd() )
{
setToTime(tl->loopBegin());
m_playPos[m_playMode].setTicks(
tl->loopBegin().getTicks() );
emit updateSampleTracks();
}
}
f_cnt_t framesPlayed = 0;
const float framesPerTick = Engine::framesPerTick();
while( framesPlayed < Engine::mixer()->framesPerPeriod() )
{
m_vstSyncController.update();
float currentFrame = m_playPos[m_playMode].currentFrame();
// did we play a tick?
if( currentFrame >= framesPerTick )
{
int ticks = m_playPos[m_playMode].getTicks() +
( int )( currentFrame / framesPerTick );
m_vstSyncController.setAbsolutePosition( ticks );
// did we play a whole tact?
if( ticks >= MidiTime::ticksPerTact() )
{
// per default we just continue playing even if
// there's no more stuff to play
// (song-play-mode)
int maxTact = m_playPos[m_playMode].getTact()
+ 2;
// then decide whether to go over to next tact
// or to loop back to first tact
if( m_playMode == Mode_PlayBB )
{
maxTact = Engine::getBBTrackContainer()
->lengthOfCurrentBB();
}
else if( m_playMode == Mode_PlayPattern &&
m_loopPattern == true &&
tl != NULL &&
tl->loopPointsEnabled() == false )
{
maxTact = m_patternToPlay->length()
.getTact();
}
// end of played object reached?
if( m_playPos[m_playMode].getTact() + 1
>= maxTact )
{
// then start from beginning and keep
// offset
ticks %= ( maxTact * MidiTime::ticksPerTact() );
// wrap milli second counter
setToTimeByTicks(ticks);
m_vstSyncController.setAbsolutePosition( ticks );
}
}
m_playPos[m_playMode].setTicks( ticks );
if( checkLoop )
{
m_vstSyncController.startCycle(
tl->loopBegin().getTicks(), tl->loopEnd().getTicks() );
// if looping-mode is enabled and we have got
// past the looping range, return to the
// beginning of the range
if( m_playPos[m_playMode] >= tl->loopEnd() )
{
m_playPos[m_playMode].setTicks( tl->loopBegin().getTicks() );
setToTime(tl->loopBegin());
}
else if( m_playPos[m_playMode] == tl->loopEnd() - 1 )
{
emit updateSampleTracks();
}
}
else
{
m_vstSyncController.stopCycle();
}
currentFrame = fmodf( currentFrame, framesPerTick );
m_playPos[m_playMode].setCurrentFrame( currentFrame );
}
f_cnt_t framesToPlay =
Engine::mixer()->framesPerPeriod() - framesPlayed;
f_cnt_t framesLeft = ( f_cnt_t )framesPerTick -
( f_cnt_t )currentFrame;
// skip last frame fraction
if( framesLeft == 0 )
{
++framesPlayed;
m_playPos[m_playMode].setCurrentFrame( currentFrame
+ 1.0f );
continue;
}
// do we have samples left in this tick but these are less
// than samples we have to play?
if( framesLeft < framesToPlay )
{
// then set framesToPlay to remaining samples, the
// rest will be played in next loop
framesToPlay = framesLeft;
}
if( ( f_cnt_t ) currentFrame == 0 )
{
processAutomations(trackList, m_playPos[m_playMode], framesToPlay);
// loop through all tracks and play them
for( int i = 0; i < trackList.size(); ++i )
{
trackList[i]->play( m_playPos[m_playMode],
framesToPlay,
framesPlayed, tcoNum );
}
}
// update frame-counters
framesPlayed += framesToPlay;
m_playPos[m_playMode].setCurrentFrame( framesToPlay +
currentFrame );
m_elapsedMilliSeconds += MidiTime::ticksToMilliseconds( framesToPlay / framesPerTick, getTempo());
m_elapsedTacts = m_playPos[Mode_PlaySong].getTact();
m_elapsedTicks = ( m_playPos[Mode_PlaySong].getTicks() % ticksPerTact() ) / 48;
}
}
bool LOS::importMidi(const QString name, bool merge)/*{{{*/
{
bool popenFlag;
FILE* fp = fileOpen(this, name, QString(".mid"), "r", popenFlag);
if (fp == 0)
return true;
MidiFile mf(fp);
bool rv = mf.read();
popenFlag ? pclose(fp) : fclose(fp);
if (rv)
{
QString s(tr("reading midifile\n "));
s += name;
s += tr("\nfailed: ");
s += mf.error();
QMessageBox::critical(this, QString("LOS"), s);
return rv;
}
//
// evaluate song Type (GM, XG, GS, unknown)
//
MType t = song->midiType();
if (!merge)
{
t = mf.mtype();
song->setMType(t);
}
MidiInstrument* instr = 0;
for (iMidiInstrument i = midiInstruments.begin(); i != midiInstruments.end(); ++i)
{
MidiInstrument* mi = *i;
if ((mi->iname() == "GM" && ((t == MT_UNKNOWN) || (t == MIDI_TYPE_GM)))
|| ((mi->iname() == "GS") && (t == MT_GS))
|| ((mi->iname() == "XG") && (t == MT_XG)))
{
instr = mi;
break;
}
}
if (instr == 0)
{
// the standard instrument files (GM, GS, XG) must be present
printf("no instrument, type %d\n", t);
return true;
//abort();
}
MidiFileTrackList* etl = mf.trackList();
int division = mf.division();
//
// create MidiTrack and copy events to ->events()
// - combine note on/off events
// - calculate tick value for internal resolution
//
int mPort = getFreeMidiPort();
for (iMidiFileTrack t = etl->begin(); t != etl->end(); ++t)
{
MPEventList* el = &((*t)->events);
if (el->empty())
continue;
//
// if we split the track, SYSEX and META events go into
// the first target track
bool first = true;
// somewhat silly and slooow:
QList<QPair<int, int> > eventChannelList;
if(mPort >= 0 && mPort < kMaxMidiPorts)
{
for (int channel = 0; channel < kMaxMidiChannels; ++channel)
{
//
// check if there are any events for port/channel in track:
//
iMPEvent i;
for (i = el->begin(); i != el->end(); ++i)
{
MidiPlayEvent ev = *i;
if (ev.type() != ME_SYSEX && ev.type() != ME_META && ev.channel() == channel)
break;
}
if (i == el->end())
continue;
MidiTrack* track = new MidiTrack();
track->setDefaultName();
track->setMasterFlag(true);
track->setOutChannel(channel);
track->setOutPort(mPort);
MidiPort* mport = &midiPorts[track->outPort()];
// this overwrites any instrument set for this port:
mport->setInstrument(instr);
EventList* mel = track->events();
buildMidiEventList(mel, el, track, division, first, false, false);
first = false;
processTrack(track);
song->insertTrack(track, -1);
//Create the Audio input side of the track
Track* input = song->addTrackByName(QString("i").append(track->name()), Track::AUDIO_INPUT, -1, false, false);
if(input)
{
input->setMasterFlag(false);
input->setChainMaster(track->id());
track->addManagedTrack(input->id());
}
}
}
if (first)
{
//
// track does only contain non-channel messages
// (SYSEX or META)
//
MidiTrack* track = new MidiTrack();
track->setDefaultName();
track->setMasterFlag(true);
track->setOutChannel(0);
track->setOutPort(mPort);
EventList* mel = track->events();
//buildMidiEventList(mel, el, track, division, true);
// Do SysexMeta. Don't do loops.
buildMidiEventList(mel, el, track, division, true, false, false);
processTrack(track);
song->insertTrack(track, -1);
//Create the Audio input side of the track
Track* input = song->addTrackByName(QString("i").append(track->name()), Track::AUDIO_INPUT, -1, false, false);
if(input)
{
input->setMasterFlag(false);
input->setChainMaster(track->id());
track->addManagedTrack(input->id());
}
}
mPort++;
//FIXME: Provice a non-iterative way to do this using the new losMidiPorts hash
//Or maintain a list of configured or inuse ports
while((&midiPorts[mPort])->device() && mPort < kMaxMidiPorts)
mPort++;//Just incase we have a configured port after an empty one
}
if (!merge)
{
TrackList* tl = song->tracks();
if (!tl->empty())
{
Track* track = tl->front();
track->setSelected(true);
}
song->initLen();
int z, n;
sigmap.timesig(0, z, n);
int tempo = tempomap.tempo(0);
transport->setTimesig(z, n);
transport->setTempo(tempo);
bool masterF = !tempomap.empty();
song->setMasterFlag(masterF);
transport->setMasterFlag(masterF);
song->updatePos();
composer->reset();
}
else
{
song->initLen();
}
return false;
}/*}}}*/
bool LOS::importMidi(const QString name, bool merge)/*{{{*/
{
bool popenFlag;
FILE* fp = fileOpen(this, name, QString(".mid"), "r", popenFlag);
if (fp == 0)
return true;
MidiFile mf(fp);
bool rv = mf.read();
popenFlag ? pclose(fp) : fclose(fp);
if (rv)
{
QString s(tr("reading midifile\n "));
s += name;
s += tr("\nfailed: ");
s += mf.error();
QMessageBox::critical(this, QString("LOS"), s);
return rv;
}
//
// evaluate song Type (GM, XG, GS, unknown)
//
MType t = song->midiType();
if (!merge)
{
t = mf.mtype();
song->setMType(t);
}
MidiInstrument* instr = 0;
for (iMidiInstrument i = midiInstruments.begin(); i != midiInstruments.end(); ++i)
{
MidiInstrument* mi = *i;
if ((mi->iname() == "GM" && ((t == MT_UNKNOWN) || (t == MIDI_TYPE_GM)))
|| ((mi->iname() == "GS") && (t == MT_GS))
|| ((mi->iname() == "XG") && (t == MT_XG)))
{
instr = mi;
break;
}
}
if (instr == 0)
{
// the standard instrument files (GM, GS, XG) must be present
printf("no instrument, type %d\n", t);
return true;
//abort();
}
MidiFileTrackList* etl = mf.trackList();
int division = mf.division();
//
// create MidiTrack and copy events to ->events()
// - combine note on/off events
// - calculate tick value for internal resolution
//
for (iMidiFileTrack t = etl->begin(); t != etl->end(); ++t)
{
MPEventList* el = &((*t)->events);
if (el->empty())
continue;
//
// if we split the track, SYSEX and META events go into
// the first target track
bool first = true;
// somewhat silly and slooow:
for (int port = 0; port < kMaxMidiPorts; ++port)
{
for (int channel = 0; channel < kMaxMidiChannels; ++channel)
{
//
// check if there are any events for port/channel in track:
//
iMPEvent i;
for (i = el->begin(); i != el->end(); ++i)
{
MidiPlayEvent ev = *i;
if (ev.type() != ME_SYSEX && ev.type() != ME_META
&& ev.channel() == channel && ev.port() == port)
break;
}
if (i == el->end())
continue;
MidiTrack* track = new MidiTrack();
if ((*t)->isDrumTrack)
{
track->setType(Track::DRUM);
}
track->setOutChannel(channel);
track->setOutPort(port);
MidiPort* mport = &midiPorts[track->outPort()];
// this overwrites any instrument set for this port:
mport->setInstrument(instr);
EventList* mel = track->events();
//buildMidiEventList(mel, el, track, division, first);
// Don't do loops.
buildMidiEventList(mel, el, track, division, first, false);
first = false;
// Hmm. buildMidiEventList already takes care of this.
// But it seems to work. How? Must test.
if (channel == 9 && song->midiType() != MT_UNKNOWN)
{
track->setType(Track::DRUM);
//
// remap drum pitch with drumInmap
//
EventList* tevents = track->events();
for (iEvent i = tevents->begin(); i != tevents->end(); ++i)
{
Event ev = i->second;
if (ev.isNote())
{
int pitch = drumInmap[ev.pitch()];
ev.setPitch(pitch);
}
else
if (ev.type() == Controller)
{
int ctl = ev.dataA();
MidiController *mc = mport->drumController(ctl);
if (mc)
ev.setA((ctl & ~0xff) | drumInmap[ctl & 0x7f]);
}
}
}
processTrack(track);
song->insertTrack(track, -1);
}
}
if (first)
{
//
// track does only contain non-channel messages
// (SYSEX or META)
//
MidiTrack* track = new MidiTrack();
track->setOutChannel(0);
track->setOutPort(0);
EventList* mel = track->events();
//buildMidiEventList(mel, el, track, division, true);
// Do SysexMeta. Don't do loops.
buildMidiEventList(mel, el, track, division, true, false);
processTrack(track);
song->insertTrack(track, -1);
}
}
if (!merge)
{
TrackList* tl = song->tracks();
if (!tl->empty())
{
Track* track = tl->front();
track->setSelected(true);
}
song->initLen();
int z, n;
///sigmap.timesig(0, z, n);
sigmap.timesig(0, z, n);
int tempo = tempomap.tempo(0);
transport->setTimesig(z, n);
transport->setTempo(tempo);
bool masterF = !tempomap.empty();
song->setMasterFlag(masterF);
transport->setMasterFlag(masterF);
song->updatePos();
composer->reset();
///composer->setMode(int(song->midiType())); // p4.0.7 Tim
}
else
{
song->initLen();
}
return false;
}/*}}}*/
bool LOS::importMidi(const QString name, bool merge)/*{{{*/
{
bool popenFlag;
FILE* fp = fileOpen(this, name, QString(".mid"), "r", popenFlag);
if (fp == 0)
return true;
MidiFile mf(fp);
bool rv = mf.read();
popenFlag ? pclose(fp) : fclose(fp);
if (rv)
{
QString s(tr("reading midifile\n "));
s += name;
s += tr("\nfailed: ");
s += mf.error();
QMessageBox::critical(this, QString("LOS"), s);
return rv;
}
//
// evaluate song Type (GM, XG, GS, unknown)
//
MType t = song->mtype();
if (!merge)
{
t = mf.mtype();
song->setMType(t);
}
MidiInstrument* instr = 0;
for (iMidiInstrument i = midiInstruments.begin(); i != midiInstruments.end(); ++i)
{
MidiInstrument* mi = *i;
if ((mi->iname() == "GM" && ((t == MT_UNKNOWN) || (t == MT_GM)))
|| ((mi->iname() == "GS") && (t == MT_GS))
|| ((mi->iname() == "XG") && (t == MT_XG)))
{
instr = mi;
break;
}
}
if (instr == 0)
{
// the standard instrument files (GM, GS, XG) must be present
printf("no instrument, type %d\n", t);
return true;
//abort();
}
MidiFileTrackList* etl = mf.trackList();
int division = mf.division();
//
// create MidiTrack and copy events to ->events()
// - combine note on/off events
// - calculate tick value for internal resolution
//
int mPort = getFreeMidiPort();
for (iMidiFileTrack t = etl->begin(); t != etl->end(); ++t)
{
MPEventList* el = &((*t)->events);
if (el->empty())
continue;
//
// if we split the track, SYSEX and META events go into
// the first target track
bool first = true;
QList<QPair<int, int> > portChannelList;
iMPEvent i;
for(i = el->begin(); i != el->end(); i++)
{
if (i->type() != ME_SYSEX && i->type() != ME_META)
{
int chan = i->channel();
int port = i->port();
if(portChannelList.isEmpty() || !portChannelList.contains(qMakePair(chan, port)))
{
portChannelList.append(qMakePair(chan, port));
MidiTrack* track = new MidiTrack();
track->setDefaultName();
track->setMasterFlag(true);
if(config.partColorNames[lastTrackPartColorIndex].contains("menu:", Qt::CaseSensitive))
lastTrackPartColorIndex ++;
track->setDefaultPartColor(lastTrackPartColorIndex);
lastTrackPartColorIndex ++;
if(lastTrackPartColorIndex == NUM_PARTCOLORS)
lastTrackPartColorIndex = 1;
//Set track channel so buildMidiEventList can match the event to a channel
track->setOutChannel(chan);
track->setOutPort(mPort);
MidiPort* mport = &midiPorts[track->outPort()];
// this overwrites any instrument set for this port:
mport->setInstrument(instr);
EventList* mel = track->events();
buildMidiEventList(mel, el, track, division, first, false, false);
first = false;
processTrack(track);
//Update track to channel 1
//99% of all midi we import will be alien to our setup anyway,
//so I'm making it easy for the user to just set the Instrument and go
track->setOutChannel(0);
song->insertTrack(track, -1);
mPort++;
//FIXME: Provice a non-iterative way to do this using the new losMidiPorts hash
//Or maintain a list of configured or inuse ports
while((&midiPorts[mPort])->device() && mPort < MIDI_PORTS)
mPort++;//Just incase we have a configured port after an empty one
}
}
}
if (first)
{
//
// track does only contain non-channel messages
// (SYSEX or META)
//
MidiTrack* track = new MidiTrack();
track->setDefaultName();
track->setMasterFlag(true);
track->setOutChannel(0);
track->setOutPort(mPort);
if(config.partColorNames[lastTrackPartColorIndex].contains("menu:", Qt::CaseSensitive))
lastTrackPartColorIndex ++;
track->setDefaultPartColor(lastTrackPartColorIndex);
lastTrackPartColorIndex ++;
if(lastTrackPartColorIndex == NUM_PARTCOLORS)
lastTrackPartColorIndex = 1;
EventList* mel = track->events();
// Do SysexMeta. Don't do loops.
// TODO: Properly support sysex dumps
buildMidiEventList(mel, el, track, division, true, false, false);
processTrack(track);
song->insertTrack(track, -1);
mPort++;
while((&midiPorts[mPort])->device() && mPort < MIDI_PORTS)
mPort++;
}
}
if (!merge)
{
TrackList* tl = song->tracks();
if (!tl->empty())
{
Track* track = tl->front();
track->setSelected(true);
}
song->initLen();
int z, n;
AL::sigmap.timesig(0, z, n);
int tempo = tempomap.tempo(0);
transport->setTimesig(z, n);
transport->setTempo(tempo);
bool masterF = !tempomap.empty();
song->setMasterFlag(masterF);
transport->setMasterFlag(masterF);
song->updatePos();
composer->reset();
}
else
{
song->initLen();
}
return false;
}/*}}}*/
