/**
* @param piece a loaded GP4 file
* @return a representation of the piece that supports the Song interface
* @throws GP4AdaptorException
*/
public static Song makeSong(GPSong piece) throws GPFormatException {
String methodName = "makeSong";
logger.entering(className, methodName);
int bpm = piece.getTempo();
logger.finer("Tempo: " + bpm + "BPM");
Tempo tempo = new Tempo();
tempo.setBPM(bpm);
Song song = new SongImpl(PPQ_HIGH_RESOLUTION / PPQ_SCALE_FACTOR, tempo);
List<GPMeasure> measures = piece.getMeasures();
logger.finer("Number of measures: " + measures.size());
List<GPTrack> tracks = piece.getTracks();
logger.finer("Number of tracks: " + tracks.size());
// List fretStates = new LinkedList();
int index = 1;
for (Iterator<GPTrack> it = tracks.iterator(); it.hasNext(); index++) {
GPTrack track = it.next();
int port = track.getPort();
int channel = track.getChannel();
int channelEffects = track.getChannelEffects();
logger.fine(
"Track " + index + " port " + port + " channels " + channel + "," + channelEffects);
int channelIndex = (port - 1) * 16 + (channel - 1);
GPMIDIChannel mc = piece.getChannels(channelIndex);
int strings = track.getNumberOfStrings();
SongTrack st = new SongTrackImpl(index, strings); // channel is
// 1-based
st.setPrimaryDevice(new SongDeviceImpl(port, channel));
if (channel != channelEffects) {
st.setSecondaryDevice(new SongDeviceImpl(port, channelEffects));
}
st.setBendSensitivity(2);
int instrument = mc.getInstrument();
logger.fine("Instrument " + instrument);
// Only set valid instruments. The drum track usually doesn't have
// one.
st.setProgram(instrument);
// TODO Verify the volume setting is correct
st.setVolume(8 * mc.getVolume());
// TODO Verify the pan setting is correct
st.setPan(8 * mc.getBalance());
// TODO Verify the chorus setting is correct
st.setChorus(8 * mc.getChorus());
// TODO verify the reverb setting is correct
st.setReverb(8 * mc.getReverb());
// TODO Verify the tremolo setting is correct
st.setTremolo(8 * mc.getTremolo());
// TODO Verify the phaser setting is correct
st.setPhaser(8 * mc.getPhaser());
song.addTrack(st);
}
List<GPMeasureTrackPair> measureTrackPairs = piece.getMeasuresTracksPairs();
logger.finer("Measure/Track pairs: " + measureTrackPairs.size());
ListIterator<GPMeasureTrackPair> itMTP = measureTrackPairs.listIterator();
ListIterator<GPMeasure> itM = measures.listIterator();
while (itM.hasNext()) {
SongPhrase sp = phraseFactory(song, itM, itMTP, tracks);
song.addPhrase(sp);
}
logger.exiting(className, methodName, song);
return song;
}
public void _testGPWithPlayer(MidiSongDefinition sd, int usq) throws Exception {
MidiSongDefinition testFile = SongArchive.testFileSongDefinition();
try {
GPInputStream gpis = new GPInputStream(sd.getGpFileName());
GPSong gpsong = (GPSong) gpis.readObject();
gpis.close();
int tempoGPSong = gpsong.getTempo();
// OLD assertEquals((int)(60*1000*1000/usq),tempoGPSong);
assertEquals((60 * 1000 * 1000 / usq), tempoGPSong);
Song song = GPAdaptor.makeSong(gpsong);
Tempo tempoSong = song.getTempo();
assertEquals(usq, (int) tempoSong.getUSQ());
MasterPlayer player = new MasterPlayer();
player.setSoundPlayer(new MidiFiler(testFile.getMidiFileName()));
Performance performance = player.arrange(song, null);
Tempo tempoPerformance = performance.getTempo();
assertEquals(usq, (int) tempoPerformance.getUSQ());
// a performance is really a sequence. So make sure there
// is a tempo event (meta 0x51) on track 0.
// make sure as well there is exactly ONE tempo event at timestamp 0
Sequence sequence = (Sequence) performance;
Track[] midiTracks = sequence.getTracks();
Track tempoMap = midiTracks[0];
Tempo tempoInMIDI = new Tempo();
for (int i = 0; i < tempoMap.size(); i++) {
MidiEvent me = tempoMap.get(i);
long tick = me.getTick();
if (tick > 0) break;
MidiMessage mm = me.getMessage();
if (mm.getStatus() == MetaMessage.META) {
MetaMessage meta = (MetaMessage) mm;
if (meta.getType() == 0x51) {
byte[] data = meta.getData();
tempoInMIDI.setUSQ(
((data[0] & 0x00FF) << 16) | ((data[1] & 0x00FF) << 8) | ((data[2] & 0x00FF)));
break;
}
}
}
assertEquals(usq, (int) tempoInMIDI.getUSQ());
MidiOutputStream mos = new MidiOutputStream(new FileOutputStream(testFile.getMidiFileName()));
mos.write(performance);
mos.close();
compareMIDIFiles(
sd.getMidiFileName(), testFile.getMidiFileName(), sd.getChannels(), sd.getEventRemap());
} catch (FileNotFoundException e) {
fail("file not found exception");
} catch (GPFormatException e) {
fail("gp format exception");
} catch (IOException e) {
fail("ioexception");
} catch (CodecFormatException e) {
fail("codec format exception");
} catch (InvalidMidiDataException e) {
fail("invalid midi data exception");
}
}
/**
* Create and return a regular SongMeasure from the current position of the iterators.
*
* @param itM an iterator over the measures collection. It must be pointing so that itM.next()
* returns the current measure
* @param itMTP an iterator over the measure-track pairs collection. It must be pointing so that
* itMTP.next() returns the first track of the current measure
* @param tracks The tracks definitions
* @return a new filled-out SongMeasure
* @throws GP4AdaptorException
*/
private static SongMeasure makeSongMeasure(
Song song,
ListIterator<GPMeasure> itM,
ListIterator<GPMeasureTrackPair> itMTP,
List<GPTrack> tracks) {
GPMeasure measure = itM.next();
int ending = measure.getNumberOfAlternateEnding();
if (ending > 0) {
logger.warning("Measure " + measure.getNumber() + " is alternate ending " + ending);
}
// TODO getNumber
// TODO getNumberOfAlternateEnding
// TODO getNumberOfRepetitions
// TODO getTonality
int numerator = measure.getNumerator();
int denominator = measure.getDenominator();
int measureLength = PPQ_HIGH_RESOLUTION * 4 * numerator / denominator;
// OLD MGG logger.finer("Measure "+measure.getNumber()+",
// "+numerator+"/"+denominator+", length " + measureLength);
TimeSignature ts = new TimeSignature(numerator, denominator);
SongMeasure sm = new SongMeasureImpl(measure.getNumber(), measureLength / PPQ_SCALE_FACTOR, ts);
for (int trackIndex = 1; trackIndex <= tracks.size(); trackIndex++) {
GPTrack track = tracks.get(trackIndex - 1);
// TODO is12StringedGuitarTrack
// TODO isBanjoTrack
// TODO getter/setter for isDrumsTrack
// TODO getChannelEffects
// TODO getColor
// TODO getName
// TODO getNumberOfFrets
// TODO getPort
int capo = track.getCapo();
int strings = track.getNumberOfStrings();
int stringTuning[] = new int[strings];
for (int i = 0; i < strings; i++) stringTuning[i] = track.getStringsTuning(i);
// OLD MGG logger.finer("Measure " + measure.getNumber() + " Track "+
// trackIndex);
GPMeasureTrackPair mtp = itMTP.next();
SongMeasureTrack smt = new SongMeasureTrackImpl(song.getTrack(trackIndex));
sm.addTrack(smt);
List<GPBeat> beats = mtp.getBeats();
int beatOffset = 0;
for (Iterator<GPBeat> itBeat = beats.iterator(); itBeat.hasNext(); ) {
GPBeat beat = itBeat.next();
// TODO effects
GPDuration duration = beat.getDuration();
// TODO add getter and setter for GP4Beat.dottedNotes
boolean dotted = beat.dottedNotes;
int ntuplet = beat.getNTuplet();
int beatDuration = calculateDuration(duration, dotted, ntuplet);
if (beat.isNoteBeat()) {
List<GPNote> notes = beat.getNotes();
List<Integer> stringsPlayed = new LinkedList<Integer>();
// TODO suggest an easier way of returning the played
// string list
for (int i = 6; i >= 0; i--) {
if (beat.isStringPlayed(i)) {
stringsPlayed.add(new Integer(i));
}
}
Iterator<GPNote> itNotes = notes.iterator();
Iterator<Integer> itStrings = stringsPlayed.iterator();
while (itNotes.hasNext()) {
// OLD MGG Integer stringObject = (Integer) itStrings.next();
// see TODO.TXT or NEWFEATURES.TXT
// this lines were added to fix the GTP playing error - BEGIN
Integer stringObject;
if (!itStrings.hasNext()) {
// this error appears to happen when its *.GTP file
// TODO show a friendly error
break;
}
/*ELSE*/
// END
stringObject = itStrings.next();
// Note that the tuning array has the highest string
// at index 0
// but the track has the highest string at index 6.
// TODO find out if this is correct. What about a
// 4-string bass?
int stringID = 6 - stringObject.intValue();
GPNote note = itNotes.next();
int noteDuration = beatDuration;
// see if this note has time independent settings on
// it
// TODO getter/setter for GP4Note.duration
GPDuration tiDuration = note.duration;
if (tiDuration != null) {
// TODO getter/setter for GP4Note.isDotted
boolean tiDotted = note.isDotted;
int tiTriplet = note.getNTuplet();
noteDuration = calculateDuration(tiDuration, tiDotted, tiTriplet);
}
// TODO isDeadNote
// TODO isGhostNote
// TODO isTieNote
// TODO effects
// TODO Note effects are a little bit difficult.
// Remember these are guitar effects
// so we effectively need a 'virtual track' for
// every string, so when we playback we
// can assign a unique MIDI channel to that track
// and so we can apply a channel-wide
// controller to that effect (such as pitch bend).
// Even the simple effect (let ring)
// can't be done easily right now because we can't
// tell when to really kill the note.
// Of course if we don't need an effect, we should
// try to use as few MIDI channels as
// we can!
int virtualTrackID = stringID;
SongVirtualTrack svt = smt.getVirtualTrack(virtualTrackID);
int noteStart = beatOffset / PPQ_SCALE_FACTOR;
int noteEnd = (beatOffset + noteDuration) / PPQ_SCALE_FACTOR;
// FIXME cover the tie note case by grabbing the
// last fret
if (note.isTieNote()) {
svt.addEvent(new SongEventImpl(noteStart, new SongTieMessage(noteEnd - noteStart)));
} else {
int baseFret = note.getFretNumber(); // OLD
// .getNumberOfFret();
int fret = baseFret + capo;
GPDynamic dynamic = note.getDynamic();
int velocity = DynamicsMap.velocityOf(dynamic);
int pitch = stringTuning[stringID] + fret;
svt.addEvent(
new SongEventImpl(
noteStart,
new SongNoteOnMessage(pitch, velocity, noteEnd - noteStart, baseFret)));
}
}
}
beatOffset += beatDuration;
}
if (beatOffset != measureLength) {
// an underfull one isn't fatal, but an overfull one is
String reason =
"Measure: "
+ measure.getNumber()
+ " track: "
+ trackIndex
+ " length mismatch, expected "
+ measureLength
+ ", got "
+ beatOffset;
if (beatOffset > measureLength) {
logger.fine(reason);
System.err.println(reason);
} else {
logger.fine(reason);
}
}
}
return sm;
}
