/*! \brief Handle a mouse move event on the piano display view
*
* This handles the user dragging the mouse across the keys. It uses
* code from mousePressEvent() and mouseReleaseEvent(), also correcting
* for if the mouse movement has stayed within one key and if the mouse
* has moved outside the vertical area of the keyboard (which is still
* allowed but won't make the volume go up to 11).
*
* \param _me the ContextMenuEvent to handle.
* \todo Paul Wayper thinks that this code should be refactored to
* reduce or remove the duplication between this, the mousePressEvent()
* and mouseReleaseEvent() methods.
*/
void PianoView::mouseMoveEvent( QMouseEvent * _me )
{
if( m_piano == NULL )
{
return;
}
int key_num = getKeyFromMouse( _me->pos() );
int y_diff = _me->pos().y() - PIANO_BASE;
int velocity = (int)( (float) y_diff /
( Piano::isWhiteKey( key_num ) ?
PW_WHITE_KEY_HEIGHT : PW_BLACK_KEY_HEIGHT ) *
(float) m_piano->instrumentTrack()->midiPort()->baseVelocity() );
// maybe the user moved the mouse-cursor above or under the
// piano-widget while holding left button so check that and
// correct volume if necessary
if( y_diff < 0 )
{
velocity = 0;
}
else if( y_diff >
( Piano::isWhiteKey( key_num ) ?
PW_WHITE_KEY_HEIGHT : PW_BLACK_KEY_HEIGHT ) )
{
velocity = m_piano->instrumentTrack()->midiPort()->baseVelocity();
}
// is the calculated key different from current key? (could be the
// user just moved the cursor one pixel left but on the same key)
if( key_num != m_lastKey )
{
if( m_lastKey != -1 )
{
m_piano->midiEventProcessor()->processInEvent( MidiEvent( MidiNoteOff, -1, m_lastKey, 0 ) );
m_piano->setKeyState( m_lastKey, false );
m_lastKey = -1;
}
if( _me->buttons() & Qt::LeftButton )
{
if( _me->pos().y() > PIANO_BASE )
{
m_piano->midiEventProcessor()->processInEvent( MidiEvent( MidiNoteOn, -1, key_num, velocity ) );
m_piano->setKeyState( key_num, true );
m_lastKey = key_num;
}
else
{
m_piano->instrumentTrack()->baseNoteModel()->setInitValue( (float) key_num );
}
}
// and let the user see that he pressed a key... :)
update();
}
else if( m_piano->isKeyPressed( key_num ) )
{
m_piano->midiEventProcessor()->processInEvent( MidiEvent( MidiKeyPressure, -1, key_num, velocity ) );
}
}
void InstrumentTrack::updatePitchRange()
{
const int r = m_pitchRangeModel.value();
m_pitchModel.setRange( MinPitchDefault * r, MaxPitchDefault * r );
processOutEvent( MidiEvent( MidiControlChange, midiPort()->realOutputChannel(),
MidiControllerRegisteredParameterNumberLSB, MidiPitchBendSensitivityRPN & 0x7F ) );
processOutEvent( MidiEvent( MidiControlChange, midiPort()->realOutputChannel(),
MidiControllerRegisteredParameterNumberMSB, ( MidiPitchBendSensitivityRPN >> 8 ) & 0x7F ) );
processOutEvent( MidiEvent( MidiControlChange, midiPort()->realOutputChannel(), MidiControllerDataEntry, midiPitchRange() ) );
}
void InstrumentTrack::processOutEvent( const MidiEvent& event, const MidiTime& time, f_cnt_t offset )
{
// do nothing if we do not have an instrument instance (e.g. when loading settings)
if( m_instrument == NULL )
{
return;
}
const MidiEvent transposedEvent = applyMasterKey( event );
const int key = transposedEvent.key();
switch( event.type() )
{
case MidiNoteOn:
m_midiNotesMutex.lock();
m_piano.setKeyState( event.key(), true ); // event.key() = original key
if( key >= 0 && key < NumKeys )
{
if( m_runningMidiNotes[key] > 0 )
{
m_instrument->handleMidiEvent( MidiEvent( MidiNoteOff, midiPort()->realOutputChannel(), key, 0 ), time, offset );
}
++m_runningMidiNotes[key];
m_instrument->handleMidiEvent( MidiEvent( MidiNoteOn, midiPort()->realOutputChannel(), key, event.velocity() ), time, offset );
}
m_midiNotesMutex.unlock();
emit newNote();
break;
case MidiNoteOff:
m_midiNotesMutex.lock();
m_piano.setKeyState( event.key(), false ); // event.key() = original key
if( key >= 0 && key < NumKeys && --m_runningMidiNotes[key] <= 0 )
{
m_instrument->handleMidiEvent( MidiEvent( MidiNoteOff, midiPort()->realOutputChannel(), key, 0 ), time, offset );
}
m_midiNotesMutex.unlock();
break;
default:
m_instrument->handleMidiEvent( transposedEvent, time, offset );
break;
}
// if appropriate, midi-port does futher routing
m_midiPort.processOutEvent( event, time );
}
void NotePlayHandle::noteOff( const f_cnt_t _s )
{
if( m_released )
{
return;
}
// first note-off all sub-notes
for( NotePlayHandleList::Iterator it = m_subNotes.begin(); it != m_subNotes.end(); ++it )
{
( *it )->noteOff( _s );
}
// then set some variables indicating release-state
m_framesBeforeRelease = _s;
m_releaseFramesToDo = qMax<f_cnt_t>( 0, actualReleaseFramesToDo() );
if( hasParent() || ! m_instrumentTrack->isArpeggioEnabled() )
{
// send MidiNoteOff event
m_instrumentTrack->processOutEvent(
MidiEvent( MidiNoteOff, midiChannel(), midiKey(), 0 ),
MidiTime::fromFrames( _s, engine::framesPerTick() ),
_s );
}
// inform attached components about MIDI finished (used for recording in Piano Roll)
if( m_origin == OriginMidiInput )
{
setLength( MidiTime( static_cast<f_cnt_t>( totalFramesPlayed() / engine::framesPerTick() ) ) );
m_instrumentTrack->midiNoteOff( *this );
}
m_released = true;
}
void sfxrInstrumentView::previewSound()
{
sfxrInstrument* s = castModel<sfxrInstrument>();
InstrumentTrack* it = s->instrumentTrack();
it->silenceAllNotes();
it->processInEvent( MidiEvent( MidiNoteOn, 0, it->baseNoteModel()->value(), MidiDefaultVelocity ) );
}
/*! \brief Handle the focus leaving the piano display view
*
* Turn off all notes if we lose focus.
*
* \todo Is there supposed to be a parameter given here?
*/
void PianoView::focusOutEvent( QFocusEvent * )
{
if( m_piano == NULL )
{
return;
}
// focus just switched to another control inside the instrument track
// window we live in?
if( parentWidget()->parentWidget()->focusWidget() != this &&
parentWidget()->parentWidget()->focusWidget() != NULL &&
!parentWidget()->parentWidget()->
focusWidget()->inherits( "QLineEdit" ) )
{
// then reclaim keyboard focus!
setFocus();
return;
}
// if we loose focus, we HAVE to note off all running notes because
// we don't receive key-release-events anymore and so the notes would
// hang otherwise
for( int i = 0; i < NumKeys; ++i )
{
m_piano->midiEventProcessor()->processInEvent( MidiEvent( MidiNoteOff, -1, i, 0 ) );
m_piano->setKeyState( i, false );
}
update();
}
void NotePlayHandle::setVolume( volume_t _volume )
{
note::setVolume( _volume );
const int baseVelocity = m_instrumentTrack->midiPort()->baseVelocity();
m_instrumentTrack->processOutEvent( MidiEvent( MidiKeyPressure, midiChannel(), midiKey(), midiVelocity( baseVelocity ) ) );
}
/*! \brief Handle a note being released on our keyboard display
*
* \param key the key being releassed
*/
void Piano::handleKeyRelease( int key )
{
if( isValidKey( key ) )
{
m_midiEvProc->processInEvent( MidiEvent( MidiNoteOff, -1, key, 0 ) );
m_pressedKeys[key] = false;
}
}
void MidiWinMM::handleInputEvent( HMIDIIN hm, DWORD ev )
{
const int cmd = ev & 0xff;
if( cmd == MidiActiveSensing )
{
return;
}
const int par1 = ( ev >> 8 ) & 0xff;
const int par2 = ev >> 16;
const MidiEventTypes cmdtype = static_cast<MidiEventTypes>( cmd & 0xf0 );
const int chan = cmd & 0x0f;
const QString d = m_inputDevices.value( hm );
if( d.isEmpty() || !m_inputSubs.contains( d ) )
{
return;
}
const MidiPortList & l = m_inputSubs[d];
for( MidiPortList::ConstIterator it = l.begin(); it != l.end(); ++it )
{
switch( cmdtype )
{
case MidiNoteOn:
case MidiNoteOff:
case MidiKeyPressure:
( *it )->processInEvent( MidiEvent( cmdtype, chan, par1 - KeysPerOctave, par2 & 0xff, &hm ) );
break;
case MidiControlChange:
case MidiProgramChange:
case MidiChannelPressure:
( *it )->processInEvent( MidiEvent( cmdtype, chan, par1, par2 & 0xff, &hm ) );
break;
case MidiPitchBend:
( *it )->processInEvent( MidiEvent( cmdtype, chan, par1 + par2*128, 0, &hm ) );
break;
default:
qWarning( "MidiWinMM: unhandled input event %d\n", cmdtype );
break;
}
}
}
void VestigeInstrumentView::noteOffAll( void )
{
m_vi->m_pluginMutex.lock();
if( m_vi->m_plugin != NULL )
{
for( int key = 0; key <= MidiMaxKey; ++key )
{
m_vi->m_plugin->processMidiEvent( MidiEvent( MidiNoteOff, 0, key, 0 ), 0 );
}
}
m_vi->m_pluginMutex.unlock();
}
/*! \brief Handle a note being pressed on our keyboard display
*
* \param key the key being pressed
*/
void Piano::handleKeyPress( int key, int midiVelocity )
{
if( midiVelocity == -1 )
{
midiVelocity = m_instrumentTrack->midiPort()->baseVelocity();
}
if( isValidKey( key ) )
{
m_midiEvProc->processInEvent( MidiEvent( MidiNoteOn, -1, key, midiVelocity ) );
m_pressedKeys[key] = true;
}
}
/*! \brief Handle a mouse click on this piano display view
*
* We first determine the key number using the getKeyFromMouse() method.
*
* If we're below the 'root key selection' area,
* we set the volume of the note to be proportional to the vertical
* position on the keyboard - lower down the key is louder, within the
* boundaries of the (white or black) key pressed. We then tell the
* instrument to play that note, scaling for MIDI max loudness = 127.
*
* If we're in the 'root key selection' area, of course, we set the
* root key to be that key.
*
* We finally update ourselves to show the key press
*
* \param _me the mouse click to handle.
*/
void PianoView::mousePressEvent( QMouseEvent * _me )
{
if( _me->button() == Qt::LeftButton && m_piano != NULL )
{
// get pressed key
int key_num = getKeyFromMouse( _me->pos() );
if( _me->pos().y() > PIANO_BASE )
{
int y_diff = _me->pos().y() - PIANO_BASE;
int velocity = (int)( ( float ) y_diff /
( Piano::isWhiteKey( key_num ) ?
PW_WHITE_KEY_HEIGHT : PW_BLACK_KEY_HEIGHT ) *
(float) m_piano->instrumentTrack()->midiPort()->baseVelocity() );
if( y_diff < 0 )
{
velocity = 0;
}
else if( y_diff >
( Piano::isWhiteKey( key_num ) ?
PW_WHITE_KEY_HEIGHT : PW_BLACK_KEY_HEIGHT ) )
{
velocity = m_piano->instrumentTrack()->midiPort()->baseVelocity();
}
// set note on
m_piano->midiEventProcessor()->processInEvent( MidiEvent( MidiNoteOn, -1, key_num, velocity ) );
m_piano->setKeyState( key_num, true );
m_lastKey = key_num;
emit keyPressed( key_num );
}
else
{
if( _me->modifiers() & Qt::ControlModifier )
{
new StringPairDrag( "automatable_model",
QString::number( m_piano->instrumentTrack()->baseNoteModel()->id() ),
QPixmap(), this );
_me->accept();
}
else
{
m_piano->instrumentTrack()->baseNoteModel()->setInitValue( (float) key_num );
emit baseNoteChanged();
}
}
// and let the user see that he pressed a key... :)
update();
}
}
/*! \brief Handle a mouse release event on the piano display view
*
* If a key was pressed by the in the mousePressEvent() function, we
* turn the note off.
*
* \param _me the mousePressEvent to handle.
*/
void PianoView::mouseReleaseEvent( QMouseEvent * )
{
if( m_lastKey != -1 )
{
if( m_piano != NULL )
{
m_piano->midiEventProcessor()->processInEvent( MidiEvent( MidiNoteOff, -1, m_lastKey, 0 ) );
m_piano->setKeyState( m_lastKey, false );
}
// and let the user see that he released a key... :)
update();
m_lastKey = -1;
}
}
MidiEvent MidiBuffer::readEvent(int index, bool *ok) {
if(!isValid()) {
if(ok) {
(*ok) = false;
}
return MidiEvent();
}
MidiEvent midiEvent;
bool success = (jack_midi_event_get(
&midiEvent,
_jackBuffer,
index) == 0);
if(ok) {
(*ok) = success;
}
return midiEvent;
}
void MidiPort::updateOutputProgram()
{
processOutEvent( MidiEvent( MidiProgramChange, realOutputChannel(), outputProgram()-1 ) );
}
void MidiApple::HandleReadCallback( const MIDIPacketList *pktlist, void *srcConnRefCon )
{
const char * refName = (const char *) srcConnRefCon;
MIDIEndpointRef endPointRef = m_inputDevices.value(refName);
if( !m_inputSubs.contains( refName ) )
{
// qDebug("HandleReadCallback '%s' not subscribed",refName);
// printQStringKeys("m_inputDevices", m_inputDevices);
return;
}
// qDebug("HandleReadCallback '%s' subscribed",refName);
bool continueSysEx = false;
unsigned int nBytes;
const MIDIPacket *packet = &pktlist->packet[0];
unsigned char sysExMessage[SYSEX_LENGTH];
unsigned int sysExLength = 0;
for (uint32_t i=0; i<pktlist->numPackets; ++i)
{
nBytes = packet->length;
// Check if this is the end of a continued SysEx message
if (continueSysEx) {
unsigned int lengthToCopy = qMin(nBytes, SYSEX_LENGTH - sysExLength);
// Copy the message into our SysEx message buffer,
// making sure not to overrun the buffer
memcpy(sysExMessage + sysExLength, packet->data, lengthToCopy);
sysExLength += lengthToCopy;
// Check if the last byte is SysEx End.
continueSysEx = (packet->data[nBytes - 1] == 0xF7);
if (!continueSysEx || sysExLength == SYSEX_LENGTH) {
// We would process the SysEx message here, as it is we're just ignoring it
sysExLength = 0;
}
}
else
{
UInt16 iByte, size;
iByte = 0;
while (iByte < nBytes)
{
size = 0;
// First byte should be status
unsigned char status = packet->data[iByte];
if (status < 0xC0) {
size = 3;
}
else if (status < 0xE0)
{
size = 2;
}
else if (status < 0xF0)
{
size = 3;
}
else if (status == 0xF0)
{
// MIDI SysEx then we copy the rest of the message into the SysEx message buffer
unsigned int lengthLeftInMessage = nBytes - iByte;
unsigned int lengthToCopy = qMin(lengthLeftInMessage, SYSEX_LENGTH);
memcpy(sysExMessage + sysExLength, packet->data, lengthToCopy);
sysExLength += lengthToCopy;
size = 0;
iByte = nBytes;
// Check whether the message at the end is the end of the SysEx
continueSysEx = (packet->data[nBytes - 1] != 0xF7);
}
else if (status < 0xF3)
{
size = 3;
}
else if (status == 0xF3)
{
size = 2;
}
else
{
size = 1;
}
unsigned char messageChannel = status & 0xF;
const MidiEventTypes cmdtype = static_cast<MidiEventTypes>( status & 0xF0 );
const int par1 = packet->data[iByte + 1];
const int par2 = packet->data[iByte + 2];
switch (cmdtype)
{
case MidiNoteOff: //0x80:
case MidiNoteOn: //0x90:
case MidiKeyPressure: //0xA0:
notifyMidiPortList(m_inputSubs[refName],MidiEvent( cmdtype, messageChannel, par1 - KeysPerOctave, par2 & 0xff, &endPointRef ));
break;
case MidiControlChange: //0xB0:
case MidiProgramChange: //0xC0:
case MidiChannelPressure: //0xD0:
notifyMidiPortList(m_inputSubs[refName],MidiEvent( cmdtype, messageChannel, par1, par2 & 0xff, &endPointRef ));
break;
case MidiPitchBend: //0xE0:
notifyMidiPortList(m_inputSubs[refName],MidiEvent( cmdtype, messageChannel, par1 + par2 * 128, 0, &endPointRef ));
break;
case MidiActiveSensing: //0xF0
case 0xF0:
break;
default:
qDebug("endPointRef name='%s':Some other message %d", refName, cmdtype);
break;
}
iByte += size;
}
}
packet = MIDIPacketNext(packet);
}
}
void InstrumentTrack::updatePitch()
{
updateBaseNote();
processOutEvent( MidiEvent( MidiPitchBend, midiPort()->realOutputChannel(), midiPitch() ) );
}
void InstrumentTrackView::activityIndicatorReleased()
{
model()->processInEvent( MidiEvent( MidiNoteOff, 0, DefaultKey, 0 ) );
}
void InstrumentTrackView::activityIndicatorPressed()
{
model()->processInEvent( MidiEvent( MidiNoteOn, 0, DefaultKey, MidiDefaultVelocity ) );
}
int main(int argc, char* argv[])
{
int c;
while ((c = getopt(argc, argv, "vdD:r")) != EOF) {
switch (c) {
case 'v':
printVersion();
return 0;
case 'd':
debugMode = true;
break;
default:
usage();
return -1;
}
}
QIODevice* in = 0;
QIODevice* out = 0;
switch (argc - optind) {
case 2:
out = new QFile(argv[1 + optind]);
if (!out->open(QIODevice::WriteOnly)) {
printf("cannot open output file <%s>: %s\n", argv[optind+1], strerror(errno));
return -3;
}
case 1:
in = new QFile(argv[optind]);
if (!in->open(QIODevice::ReadOnly)) {
printf("cannot open input file <%s>: %s\n", argv[optind], strerror(errno));
return -4;
}
break;
case 0:
break;
default:
usage();
return -2;
break;
}
if (in == 0) {
in = new QFile;
((QFile*)in)->open(stdin, QIODevice::ReadOnly);
}
if (out == 0) {
out = new QFile;
((QFile*)out)->open(stdout, QIODevice::WriteOnly);
}
MidiFile mf;
mf.setFormat(1);
XmlReader e(in);
while (e.readNextStartElement()) {
const QStringRef& tag(e.name());
if (tag == "SMF") {
while (e.readNextStartElement()) {
const QStringRef& tag(e.name());
if (tag == "Track") {
MidiTrack* track = new MidiTrack(&mf);
while (e.readNextStartElement()) {
const QStringRef& tag(e.name());
if (tag == "NoteOff") {
MidiEventType t = MidiEventType::NOTEOFF;
int tick = e.intAttribute("tick");
uchar c = e.intAttribute("c");
uchar a = e.intAttribute("a", 0, 16);
uchar b = e.intAttribute("b", 0, 16);
track->events().insert(std::pair<int,MidiEvent>(tick, MidiEvent(t, c, a, b)));
e.skipCurrentElement();
}
else if (tag == "NoteOn") {
MidiEventType t = MidiEventType::NOTEON;
int tick = e.intAttribute("tick");
uchar c = e.intAttribute("c");
uchar a = e.intAttribute("a", 0, 16);
uchar b = e.intAttribute("b", 0, 16);
track->events().insert(std::pair<int,MidiEvent>(tick, MidiEvent(t, c, a, b)));
e.skipCurrentElement();
}
else if (tag == "Ctrl") {
MidiEventType t = MidiEventType::CONTROLLER;
int tick = e.intAttribute("tick");
uchar c = e.intAttribute("c");
uchar a = e.intAttribute("a", 0, 16);
uchar b = e.intAttribute("b", 0, 16);
track->events().insert(std::pair<int,MidiEvent>(tick, MidiEvent(t, c, a, b)));
e.skipCurrentElement();
}
else if (tag == "Program") {
MidiEventType t = MidiEventType::PROGRAM;
int tick = e.intAttribute("tick");
uchar c = e.intAttribute("c");
uchar a = e.intAttribute("a", 0, 16);
track->events().insert(std::pair<int,MidiEvent>(tick, MidiEvent(t, c, a, 0)));
e.skipCurrentElement();
}
else if (tag == "Event") {
uchar t = e.intAttribute("t");
int tick = e.intAttribute("tick");
uchar c = e.intAttribute("c");
uchar a = e.intAttribute("a", 0, 16);
uchar b = e.intAttribute("b", 0, 16);
track->events().insert(std::pair<int,MidiEvent>(tick,
MidiEvent(MidiEventType(t), c, a, b)));
e.skipCurrentElement();
}
else
e.unknown();
}
mf.tracks().push_back(track);
}
else if (tag == "division")
mf.setDivision(e.readInt());
else if (tag == "format")
mf.setFormat(e.readInt());
else
e.unknown();
}
}
else
e.unknown();
}
mf.write(out);
delete out;
delete in;
return 0;
}
NotePlayHandle::NotePlayHandle( InstrumentTrack* instrumentTrack,
const f_cnt_t _offset,
const f_cnt_t _frames,
const note& n,
NotePlayHandle *parent,
int midiEventChannel,
Origin origin ) :
PlayHandle( TypeNotePlayHandle, _offset ),
note( n.length(), n.pos(), n.key(), n.getVolume(), n.getPanning(), n.detuning() ),
m_pluginData( NULL ),
m_filter( NULL ),
m_instrumentTrack( instrumentTrack ),
m_frames( 0 ),
m_totalFramesPlayed( 0 ),
m_framesBeforeRelease( 0 ),
m_releaseFramesToDo( 0 ),
m_releaseFramesDone( 0 ),
m_released( false ),
m_hasParent( parent != NULL ),
m_hadChildren( false ),
m_muted( false ),
m_bbTrack( NULL ),
m_origTempo( engine::getSong()->getTempo() ),
m_origBaseNote( instrumentTrack->baseNote() ),
m_frequency( 0 ),
m_unpitchedFrequency( 0 ),
m_baseDetuning( NULL ),
m_songGlobalParentOffset( 0 ),
m_midiChannel( midiEventChannel >= 0 ? midiEventChannel : instrumentTrack->midiPort()->realOutputChannel() ),
m_origin( origin )
{
if( hasParent() == false )
{
m_baseDetuning = new BaseDetuning( detuning() );
m_instrumentTrack->m_processHandles.push_back( this );
}
else
{
m_baseDetuning = parent->m_baseDetuning;
parent->m_subNotes.push_back( this );
parent->m_hadChildren = true;
m_bbTrack = parent->m_bbTrack;
}
updateFrequency();
setFrames( _frames );
// inform attached components about new MIDI note (used for recording in Piano Roll)
if( m_origin == OriginMidiInput )
{
m_instrumentTrack->midiNoteOn( *this );
}
if( hasParent() || ! m_instrumentTrack->isArpeggioEnabled() )
{
const int baseVelocity = m_instrumentTrack->midiPort()->baseVelocity();
// send MidiNoteOn event
m_instrumentTrack->processOutEvent(
MidiEvent( MidiNoteOn, midiChannel(), midiKey(), midiVelocity( baseVelocity ) ),
MidiTime::fromFrames( offset(), engine::framesPerTick() ),
offset() );
}
}
void ZynAddSubFxInstrument::sendControlChange( MidiControllers midiCtl, float value )
{
handleMidiEvent( MidiEvent( MidiControlChange, instrumentTrack()->midiPort()->realOutputChannel(), midiCtl, (int) value, this ) );
}
void MidiAlsaSeq::run()
{
// watch the pipe and sequencer input events
int pollfd_count = snd_seq_poll_descriptors_count( m_seqHandle,
POLLIN );
struct pollfd * pollfd_set = new struct pollfd[pollfd_count + 1];
snd_seq_poll_descriptors( m_seqHandle, pollfd_set + 1, pollfd_count,
POLLIN );
pollfd_set[0].fd = m_pipe[0];
pollfd_set[0].events = POLLIN;
++pollfd_count;
while( m_quit == false )
{
int pollRet = poll( pollfd_set, pollfd_count, EventPollTimeOut );
if( pollRet == 0 )
{
continue;
}
else if( pollRet == -1 )
{
// gdb may interrupt the poll
if( errno == EINTR )
{
continue;
}
qCritical( "error while polling ALSA sequencer handle" );
break;
}
// shutdown?
if( m_quit )
{
break;
}
m_seqMutex.lock();
// while event queue is not empty
while( snd_seq_event_input_pending( m_seqHandle, true ) > 0 )
{
snd_seq_event_t * ev;
if( snd_seq_event_input( m_seqHandle, &ev ) < 0 )
{
m_seqMutex.unlock();
qCritical( "error while fetching MIDI event from sequencer" );
break;
}
m_seqMutex.unlock();
snd_seq_addr_t * source = NULL;
MidiPort * dest = NULL;
for( int i = 0; i < m_portIDs.size(); ++i )
{
if( m_portIDs.values()[i][0] == ev->dest.port )
{
dest = m_portIDs.keys()[i];
}
if( ( m_portIDs.values()[i][1] != -1 &&
m_portIDs.values()[i][1] == ev->source.port ) ||
m_portIDs.values()[i][0] == ev->source.port )
{
source = &ev->source;
}
}
if( dest == NULL )
{
continue;
}
switch( ev->type )
{
case SND_SEQ_EVENT_NOTEON:
dest->processInEvent( MidiEvent( MidiNoteOn,
ev->data.note.channel,
ev->data.note.note -
KeysPerOctave,
ev->data.note.velocity,
source
),
MidiTime( ev->time.tick ) );
break;
case SND_SEQ_EVENT_NOTEOFF:
dest->processInEvent( MidiEvent( MidiNoteOff,
ev->data.note.channel,
ev->data.note.note -
KeysPerOctave,
ev->data.note.velocity,
source
),
MidiTime( ev->time.tick) );
break;
case SND_SEQ_EVENT_KEYPRESS:
dest->processInEvent( MidiEvent(
MidiKeyPressure,
ev->data.note.channel,
ev->data.note.note -
KeysPerOctave,
ev->data.note.velocity,
source
), MidiTime() );
break;
case SND_SEQ_EVENT_CONTROLLER:
dest->processInEvent( MidiEvent(
MidiControlChange,
ev->data.control.channel,
ev->data.control.param,
ev->data.control.value, source ),
MidiTime() );
break;
case SND_SEQ_EVENT_PGMCHANGE:
dest->processInEvent( MidiEvent(
MidiProgramChange,
ev->data.control.channel,
ev->data.control.param,
ev->data.control.value, source ),
MidiTime() );
break;
case SND_SEQ_EVENT_CHANPRESS:
dest->processInEvent( MidiEvent(
MidiChannelPressure,
ev->data.control.channel,
ev->data.control.param,
ev->data.control.value, source ),
MidiTime() );
break;
case SND_SEQ_EVENT_PITCHBEND:
dest->processInEvent( MidiEvent( MidiPitchBend,
ev->data.control.channel,
ev->data.control.value + 8192, 0, source ),
MidiTime() );
break;
case SND_SEQ_EVENT_SENSING:
case SND_SEQ_EVENT_CLOCK:
break;
default:
fprintf( stderr,
"ALSA-sequencer: unhandled input "
"event %d\n", ev->type );
break;
} // end switch
m_seqMutex.lock();
} // end while
m_seqMutex.unlock();
}
delete[] pollfd_set;
}
