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 Thread player;
- public static final int RESOLUTION = 96, DEFAULT_TRACKS = 4;
+ public static final int DEFAULT_RESOLUTION = 96, DEFAULT_TRACKS = 4;
/**
* Starts the application.
public static void clearSequence() {
// Creates a new sequence and sends it to the sequencer.
try {
- seq = new Sequence(Sequence.PPQ, RESOLUTION, DEFAULT_TRACKS);
+ seq = new Sequence(Sequence.PPQ, DEFAULT_RESOLUTION, DEFAULT_TRACKS);
sequencer.setSequence(seq);
} catch (InvalidMidiDataException e) {}
// Sends sequence to GUI.
// 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() {
- while(sequencer.isRunning()) gui.update(sequencer.getTickPosition());
+ 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)((15000 / getTempo()) * (tickDiff / ticksPerSixteenth)));
+ } catch (InterruptedException e) {
+ Moosique.stop();
+ }
+ }
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;
}
* @return the tick position
*/
public static int getTempo() {
- if (tempoMsg == null) return 0;
return 120;
+ // if (tempoMsg == null) return 0;
}
/**
* @param ticks the tick position
*/
public static void setTempo(int bpm) {
- // tempoMsg, timeSigMsg
+ // tempoMsg
}
/**
* Returns the tempo of the current sequence.
* @return the tick position
*/
- public static int getTimeSig() {
- if (timeSigMsg == null) return 0;
- return 120;
+ public static int[] getTimeSig() {
+ int[] ts = {4, 4};
+ return ts;
+ // if (timeSigMsg == null) return 0;
}
/**
* @param ticks the tick position
*/
public static void setTimeSig(int bpm) {
- // tempoMsg, timeSigMsg
+ // timeSigMsg
}
/**
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);
+ // Wraps each NoteOn event with its NoteOff event in a MooNote
+ ArrayList noteOns, noteOffs;
+ for (int i = 0; i < tracks.length; i++) {
+ // 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();
+ boolean isEmpty = (noteOns.size() == 0);
+ String text = "Track " + i + " has " + noteOns.size() + "/" + noteOffs.size() + "/" + tracks[i].size();
+ if (isEmpty) text += " and will not be removed.";
+ System.out.println(text);
+ emptyTracks.add(tracks[i]);
+
+ // Sorts the note lists by tick position.
+ Comparator c = new Comparator() {
+ public int compare(Object o1, Object o2) {
+ return (int)(((MidiEvent)o1).getTick() - ((MidiEvent)o2).getTick());
+ }
+ };
+ 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();
}
}
+ /*
+ Collections.sort(track[i].events, new Comparator() {
+ public int compare(Object o1, Object o2) {
+ return ((MidiEvent)o2).getTick() - ((MidiEvent)o1).getTick();
+ }
+ });
+
// Searches the sequence for NoteOn events
MidiEvent noteOn, noteOff = null, nextEvent;
MidiMessage nextMsg;
ShortMessage shortMsg;
- ArrayList noteOns, noteOffs;
+
for (int i = 0; i < tracks.length; i++) {
- noteOns = new ArrayList(tracks.length);
- /*
- Collections.sort(track[i].events, new Comparator() {
- public int compare(Object o1, Object o2) {
- return ((MidiEvent)o2).getTick() - ((MidiEvent)o1).getTick();
- }
- });
- */
for (int j = 0; j < tracks[i].size(); j++) {
noteOn = tracks[i].get(j);
if (noteOn.getMessage().getStatus() == ShortMessage.NOTE_ON) {
}
}
}
+*/
// 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