private static Synthesizer synthesizer;
private static MidiChannel[] channels;
private static MidiChannel activeChannel;
+ private static MidiEvent[] timeSignatures, tempoChanges;
+ private static ArrayList emptyTracks;
private static String filename, fileArg;
- private static long position;
- private static boolean makeGUI = true, isEdited;
+ private static long editPosition;
+ private static boolean makeGUI = true, isEdited = false, drawEmptyTracks = false;
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.
return channels;
}
+ /**
+ * Returns the MidiChannels of the selected synthesizer.
+ * @return the available MidiChannels
+ */
+ public static MidiChannel getChannel(int i) {
+ return channels[i];
+ }
+
/**
* Returns the currently active MidiChannel.
* @return the active MidiChannel
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);
+ emptyTracks = new ArrayList();
} catch (InvalidMidiDataException e) {}
// Sends sequence to GUI.
if (gui != null) gui.setSequence(seq);
* Starts playback of the current sequence.
*/
public static void play() {
- sequencer.setTickPosition(position);
+ sequencer.setTickPosition(editPosition);
resume();
}
* Pauses playback of the current sequence.
*/
public static void pause() {
- sequencer.stop();
- player.interrupt();
+ if (sequencer.isRunning()) {
+ sequencer.stop();
+ }
+ if (player != null) player.interrupt();
}
/**
* Resumes playback of the current sequence.
*/
public static void resume() {
+ gui.update(0);
sequencer.start();
// 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)));
+ sleep (10);
+ } catch (InterruptedException e) {
+ Moosique.stop();
+ }
+ }
Moosique.stop();
}
};
* Stops playback of the current sequence.
*/
public static void stop() {
- sequencer.stop();
- sequencer.setTickPosition(position);
- player.interrupt();
+ if (sequencer.isRunning()) {
+ sequencer.stop();
+ }
+ sequencer.setTickPosition(editPosition);
+ if (player != null) player.interrupt();
gui.update((long)0);
}
/**
- * Returns the current tick position of the sequencer.
+ * Returns the current editing position of the sequencer.
* @return the tick position
*/
- public static long getPosition() {
- return position;
+ public static long getEditPosition() {
+ return editPosition;
}
/**
- * Sets the current tick position of the sequencer.
+ * Sets the current editing position of the sequencer.
* @param ticks the tick position
*/
- public static void setPosition(long ticks) {
- position = ticks;
+ public static void setEditPosition(long ticks) {
+ editPosition = ticks;
+ }
+
+ /**
+ * Returns the tempo of the current sequence.
+ * @return the tick position
+ */
+ public static int getTempo() {
+ return 120;
+ // if (tempoMsg == null) return 0;
+ }
+
+ /**
+ * Sets the current editing position of the sequencer.
+ * @param ticks the tick position
+ */
+ public static void setTempo(int bpm) {
+ // tempoMsg
+ }
+
+ /**
+ * Returns the tempo of the current sequence.
+ * @return the tick position
+ */
+ public static int[] getTimeSig() {
+ int[] ts = {4, 4};
+ return ts;
+ // if (timeSigMsg == null) return 0;
+ }
+
+ /**
+ * Sets the current editing position of the sequencer.
+ * @param ticks the tick position
+ */
+ public static void setTimeSig(int bpm) {
+ // timeSigMsg
}
/**
* @param measures the number of measures to rewind
*/
public static void rewind(long ticks) {
- setPosition(position - ticks);
+ editPosition -= ticks;
}
/**
* @param measures the number of measures to fast forward
*/
public static void forward(long ticks) {
- setPosition(position + 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;
}
/**
return false;
}
isEdited = false;
-
- // Searches the sequence for NoteOn events
+
Track[] tracks = seq.getTracks();
- MidiEvent noteOn, noteOff = null, nextEvent;
- MidiMessage nextMsg;
- ShortMessage shortMsg;
+ emptyTracks = new ArrayList();
+
+ // 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++) {
+ 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++) {
- /*
- 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() instanceof ShortMessage) {
- if (((ShortMessage)noteOn.getMessage()).getCommand() == 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 {
MidiSystem.write(seq, 1, new File(filename));
} catch (IOException e) {}
filename = file;
+ gui.setStatus("Saved " + file);
}
/**
if (synthesizer.isOpen()) synthesizer.close();
System.exit(0);
}
-}
+}
\ No newline at end of file
projects / moosique.git / blobdiff