private static Synthesizer synthesizer;
private static MidiChannel[] channels;
private static MidiChannel activeChannel;
- private static MetaMessage tempoMsg, timeSigMsg;
+ private static MidiEvent[] timeSignatures, tempoChanges;
+ private static ArrayList emptyTracks;
private static String filename, fileArg;
private static long editPosition;
- private static boolean makeGUI = true, isEdited;
+ private static boolean makeGUI = true, isEdited = false, drawEmptyTracks = false;
private static Thread player;
public static final int DEFAULT_RESOLUTION = 96, DEFAULT_TRACKS = 4;
try {
seq = new Sequence(Sequence.PPQ, DEFAULT_RESOLUTION, DEFAULT_TRACKS);
sequencer.setSequence(seq);
+ emptyTracks = new ArrayList();
} catch (InvalidMidiDataException e) {}
// Sends sequence to GUI.
if (gui != null) gui.setSequence(seq);
// Disables input to volatile components
// gui.disable();
- // Creates the visualization thread and starts it.
+ // Creates the visualisation thread and starts it.
player = new Thread () {
public void run() {
+ long ticksPerSixteenth = seq.getResolution()/4;
+ System.out.println("Ticks/16: " + ticksPerSixteenth);
+ long position = sequencer.getTickPosition();
while(sequencer.isRunning()) {
+ long pos = sequencer.getTickPosition();
+ long tickDiff = pos - position;
+ System.out.print(" ... " + tickDiff);
+ position = pos;
+
// Updates the GUI with the current tick position.
gui.update(sequencer.getTickPosition());
// Puts the thread to sleep for as long as it takes
// the sequencer to reach the next sixteenth.
try {
- sleep((long)((1000 * 60 * 1) / (getTempo() * 4)));
+ //sleep((long)((15000 / getTempo()) * (tickDiff / ticksPerSixteenth)));
+ sleep (10);
} catch (InterruptedException e) {
Moosique.stop();
}
* Returns the current editing position of the sequencer.
* @return the tick position
*/
- public static long getPosition() {
+ public static long getEditPosition() {
return editPosition;
}
* Sets the current editing position of the sequencer.
* @param ticks the tick position
*/
- public static void setPosition(long ticks) {
+ public static void setEditPosition(long ticks) {
editPosition = ticks;
}
editPosition += ticks;
}
+ /**
+ * Returns whether the given track should be drawn
+ * @return true if the given track should be drawn
+ */
+ public static boolean shouldBeDrawn(Track track) {
+ if (drawEmptyTracks) return true;
+ else return (!emptyTracks.contains(track));
+ }
+
+
+ /**
+ * Sets whether empty tracks should be drawn
+ * @param state true if empty tracks should be drawn
+ */
+ public static void setDrawEmptyTracks(boolean state) {
+ drawEmptyTracks = state;
+ }
+
/**
* Loads the MooSequence in the given file.
* @param filename the filename to use
isEdited = false;
Track[] tracks = seq.getTracks();
+ emptyTracks = new ArrayList();
- // Stores tempo and time signature.
- MidiMessage msg;
+ // Searches track 0 for changes in tempo and time signature.
+ MidiEvent event;
MetaMessage metaMsg;
+ ArrayList ts = new ArrayList(), tc = new ArrayList();
for (int i = 0; i < tracks[0].size(); i++) {
- msg = tracks[0].get(i).getMessage();
- if (msg.getStatus() == MetaMessage.META) {
- metaMsg = (MetaMessage)msg;
- if (metaMsg.getType() == 81) {
- tempoMsg = metaMsg;
- } else if (metaMsg.getType() == 88) {
- timeSigMsg = (MetaMessage)msg;
+ event = tracks[0].get(i);
+ if (event.getMessage().getStatus() == MetaMessage.META) {
+ metaMsg = (MetaMessage)event.getMessage();
+ switch(metaMsg.getType()) {
+ case 81: tc.add(event); break;
+ case 88: ts.add(event);
}
-
}
}
+// timeSignatures = ts.toArray(timeSignatures);
+// tempoChanges = tc.toArray(tempoChanges);
- // Searches the sequence for NoteOn events
- MidiEvent noteOn, noteOff = null, nextEvent;
- MidiMessage nextMsg;
- ShortMessage shortMsg;
+ // Wraps each NoteOn event with its NoteOff event in a MooNote
ArrayList noteOns, noteOffs;
for (int i = 0; i < tracks.length; i++) {
- noteOns = new ArrayList(tracks.length);
- /*
- Collections.sort(track[i].events, new Comparator() {
+ // Searches the sequence for NoteOn and NoteOff events
+ noteOns = new ArrayList(tracks[i].size() / 2);
+ noteOffs = new ArrayList(tracks[i].size() / 2);
+ for (int j = 0; j < tracks[i].size(); j++) {
+ event = tracks[i].get(j);
+ if (event.getMessage().getStatus() >= 144 &&
+ event.getMessage().getStatus() < 160) noteOns.add(event);
+ if (event.getMessage().getStatus() >= 128 &&
+ event.getMessage().getStatus() < 144) noteOffs.add(event);
+ }
+ noteOns.trimToSize();
+ noteOffs.trimToSize();
+ if (noteOns.size() == 0) emptyTracks.add(tracks[i]);
+
+ // Sorts the note lists by tick position.
+ Comparator c = new Comparator() {
public int compare(Object o1, Object o2) {
- return ((MidiEvent)o2).getTick() - ((MidiEvent)o1).getTick();
+ return (int)(((MidiEvent)o1).getTick() - ((MidiEvent)o2).getTick());
}
- });
- */
- for (int j = 0; j < tracks[i].size(); j++) {
- noteOn = tracks[i].get(j);
- if (noteOn.getMessage().getStatus() == ShortMessage.NOTE_ON) {
- // Finds the corresponding NoteOff event
- for (int k = j + 1; k < tracks[i].size(); k++) {
- nextEvent = tracks[i].get(k);
- nextMsg = nextEvent.getMessage();
- if (nextMsg instanceof ShortMessage) {
- shortMsg = (ShortMessage) nextMsg;
- if (shortMsg.getCommand() == ShortMessage.NOTE_OFF && shortMsg.getChannel() == ((ShortMessage)noteOn.getMessage()).getChannel() && shortMsg.getData1() == ((ShortMessage)noteOn.getMessage()).getData1()) {
- noteOff = nextEvent;
- break;
- }
- }
- }
- // Replaces the NoteOn event with a MooNote, if possible with the corresponding NoteOff event
- tracks[i].remove(noteOn);
- if (noteOff != null) {
- tracks[i].add(new MooNote(noteOn, noteOff));
- } else {
- tracks[i].add(new MooNote(noteOn));
+ };
+ Collections.sort(noteOns, c);
+ Collections.sort(noteOffs, c);
+
+ // For each NoteOn event, finds its NoteOff event and replaces it with a MooNote.
+ Iterator iOn = noteOns.iterator(), iOff;
+ MidiEvent on, off = null, nextOff;
+ ShortMessage onMsg, nextOffMsg;
+ while(iOn.hasNext()) {
+ on = (MidiEvent)iOn.next();
+ onMsg = (ShortMessage)on.getMessage();
+ iOff = noteOffs.iterator();
+ while(iOff.hasNext()) {
+ nextOff = (MidiEvent)iOff.next();
+ nextOffMsg = (ShortMessage)nextOff.getMessage();
+ if(onMsg.getChannel() == nextOffMsg.getChannel() &&
+ onMsg.getData1() == nextOffMsg.getData1() &&
+ c.compare(nextOff, on) > 0) {
+ off = nextOff;
+ iOff.remove();
+ break;
}
+
}
+ tracks[i].remove(on);
+ if (off != null) {
+ tracks[i].add(new MooNote(on, off));
+ } else {
+ tracks[i].add(new MooNote(on));
+ }
+ iOn.remove();
}
}
+
// Sends sequence to GUI and sequencer, then returns
if (gui != null) gui.setSequence(seq);
try {
if (synthesizer.isOpen()) synthesizer.close();
System.exit(0);
}
-}
+}
\ No newline at end of file
projects / moosique.git / blobdiff