/** return true if the passed message is Meta End Of Track */
public static boolean isMetaEndOfTrack(MidiMessage midiMsg) {
// first check if it is a META message at all
if (midiMsg.getLength() != 3 || midiMsg.getStatus() != MetaMessage.META) {
return false;
}
// now get message and check for end of track
byte[] msg = midiMsg.getMessage();
return ((msg[1] & 0xFF) == META_END_OF_TRACK_TYPE) && (msg[2] == 0);
}
/** return if the given message is a meta tempo message */
public static boolean isMetaTempo(MidiMessage midiMsg) {
// first check if it is a META message at all
if (midiMsg.getLength() != 6 || midiMsg.getStatus() != MetaMessage.META) {
return false;
}
// now get message and check for tempo
byte[] msg = midiMsg.getMessage();
// meta type must be 0x51, and data length must be 3
return ((msg[1] & 0xFF) == META_TEMPO_TYPE) && (msg[2] == 3);
}
/**
* parses this message for a META tempo message and returns the tempo in MPQ, or -1 if this isn't
* a tempo message
*/
public static int getTempoMPQ(MidiMessage midiMsg) {
// first check if it is a META message at all
if (midiMsg.getLength() != 6 || midiMsg.getStatus() != MetaMessage.META) {
return -1;
}
byte[] msg = midiMsg.getMessage();
if (((msg[1] & 0xFF) != META_TEMPO_TYPE) || (msg[2] != 3)) {
return -1;
}
int tempo = (msg[5] & 0xFF) | ((msg[4] & 0xFF) << 8) | ((msg[3] & 0xFF) << 16);
return tempo;
}
public static void assertNoteEventEqual(
MidiEvent noteEvent,
long tick,
byte byte1,
byte byte2,
byte byte3,
boolean ignoreTickOffset) {
int tickOffset = (ignoreTickOffset ? 0 : MidiNote.MIDI_SEQUENCE_START_SILENCE_TICK_OFFSET);
assertEquals(tick, noteEvent.getTick() - tickOffset);
javax.sound.midi.MidiMessage msg = noteEvent.getMessage();
assertEquals(byte1, msg.getMessage()[0]);
assertEquals(byte2, msg.getMessage()[1]);
assertEquals(byte3, msg.getMessage()[2]);
}
public void send(MidiMessage message, long timeStamp) {
try {
if (this.sequencer.isRunning()) {
parseMessage(message.getMessage());
}
} catch (MidiPlayerException e) {
e.printStackTrace();
}
}
/** {@inheritDoc} */
public void send(MidiMessage midi, long time) {
byte[] msg = midi.getMessage();
int len = midi.getLength();
if (len <= 1) {
return;
}
StringBuilder out = new StringBuilder("Status: ");
out.append(msg[0]);
out.append(" Data: [");
for (int i = 1; i < len; i++) {
out.append(msg[i]);
if (i == len - 1) {
out.append("");
} else {
out.append(',');
}
}
out.append(']');
log.debug(out.toString());
}
/** TODO: */
public void setMessage(int nType, byte[] abData, int nDataLength)
throws InvalidMidiDataException {
if (nType > 127) {
throw new InvalidMidiDataException("type must not exceed 127");
}
byte[] abLength = MidiUtils.getVariableLengthQuantity(nDataLength);
int nCompleteLength = 2 + nDataLength;
byte[] abCompleteData = new byte[nCompleteLength];
abCompleteData[0] = (byte) META;
abCompleteData[1] = (byte) nType;
System.arraycopy(abData, 0, abCompleteData, 2, nDataLength);
super.setMessage(abCompleteData, nCompleteLength);
}
void callPlug(MidiInput _input, final MidiMessage msg) {
try {
if ((msg.getStatus() & 0xF0) != getStatus() && getStatus() != -1) return;
if (msg instanceof ShortMessage) {
ShortMessage smsg = (ShortMessage) msg;
if (smsg.getChannel() != channel && channel != -1) return;
}
MidiEvent event = null;
if (msg instanceof MidiEvent) {
event = (MidiEvent) msg;
} else {
event = MidiEvent.create(msg);
}
if (event != null) {
event.setInput(_input);
if (paramClass.isInstance(event)) method.invoke(getObject(), new Object[] {event});
}
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException("Error on calling plug: " + methodName);
}
}
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");
}
}
public final synchronized void send(MidiMessage var1, long var2) {
byte[] var4;
if ((var4 = var1.getMessage()).length < 3 || !this.b(var4[0], var4[1], var4[2], var2)) {
this.c.send(var1, var2);
}
}
// Is called by Java MIDI libraries for each MIDI message encountered.
public void send(MidiMessage message, long timeStamp) {
if (message.getStatus() > 127 && message.getStatus() < 144) { // Note OFF
// Convert the MIDI channel being used to the controller pin on the
// Arduino by multipying by 2.
byte pin = (byte) (2 * (message.getStatus() - 127));
System.out.println("Got note OFF on pin: " + (pin & 0xFF));
mb.sendEvent(pin, 0);
currentPeriod[message.getStatus() - 128] = 0;
} else if (message.getStatus() > 143 && message.getStatus() < 160) { // Note ON
// Convert the MIDI channel being used to the controller pin on the
// Arduino by multipying by 2.
byte pin = (byte) (2 * (message.getStatus() - 143));
// Get note number from MIDI message, and look up the period.
// NOTE: Java bytes range from -128 to 127, but we need to make them
// 0-255 to use for lookups. & 0xFF does the trick.
// After looking up the period, devide by (the Arduino resolution * 2).
// The Arduino's timer will only tick once per X microseconds based on the
// resolution. And each tick will only turn the pin on or off. So a full
// on-off cycle (one step on the floppy) is two periods.
int period = microPeriods[(message.getMessage()[1] & 0xff)] / (ARDUINO_RESOLUTION * 2);
System.out.println("Got note ON on pin: " + (pin & 0xFF) + " with period " + period);
System.out.println(message.getLength() + " " + message.getMessage()[message.getLength() - 1]);
// Zero velocity events turn off the pin.
if (message.getMessage()[2] == 0) {
mb.sendEvent(pin, 0);
currentPeriod[message.getStatus() - 144] = 0;
} else {
mb.sendEvent(pin, period);
currentPeriod[message.getStatus() - 144] = period;
}
} else if (message.getStatus() > 223 && message.getStatus() < 240) { // Pitch bends
// Only proceed if the note is on (otherwise, no pitch bending)
if (currentPeriod[message.getStatus() - 224] != 0) {
// Convert the MIDI channel being used to the controller pin on the
// Arduino by multipying by 2.
byte pin = (byte) (2 * (message.getStatus() - 223));
double pitchBend =
((message.getMessage()[2] & 0xff) << 8) + (message.getMessage()[1] & 0xff);
int period =
(int)
(currentPeriod[message.getStatus() - 224]
/ Math.pow(2.0, (pitchBend - 8192) / 8192));
System.out.println(currentPeriod[message.getStatus() - 224] + "-" + period);
mb.sendEvent(pin, period);
}
}
}
