public void programChange(int program) {
cc.program = program;
if (instruments != null) {
synthesizer.loadInstrument(instruments[program]);
cc.channel.programChange(program);
}
}
public void close() {
System.out.println("midi closing");
if (synthesizer != null) {
synthesizer.close();
}
if (sequencer != null) {
sequencer.close();
}
sequencer = null;
synthesizer = null;
instruments = null;
channels = null;
}
public boolean open() {
try {
if (synthesizer == null) {
if ((synthesizer = MidiSystem.getSynthesizer()) == null) {
System.out.println("getSynthesizer() failed!");
return false;
}
}
synthesizer.open();
sequencer = MidiSystem.getSequencer();
sequencer.addMetaEventListener(new ProcessMeta());
sequence = new Sequence(Sequence.PPQ, 10);
} catch (Exception ex) {
System.out.println("midi exception 1 ");
ex.printStackTrace();
return false;
}
System.out.println("midi opening");
Soundbank sb = synthesizer.getDefaultSoundbank();
if (sb != null) {
instruments = synthesizer.getDefaultSoundbank().getInstruments();
synthesizer.loadInstrument(instruments[0]);
}
MidiChannel midiChannels[] = synthesizer.getChannels();
numChannels = midiChannels.length;
channels = new ChannelData[midiChannels.length];
if (channels.length == 0) return false;
for (int i = 0; i < channels.length; i++) {
channels[i] = new ChannelData(midiChannels[i], i);
}
cc = channels[0];
return true;
}