Java Code Examples for javax.sound.midi.MidiChannel#getController()

public static void doIt(String args[]) {
    Synthesizer synth = null;
    MidiChannel mChanArr[];
    MidiChannel chan = null;
    boolean failed = false;
    int i = 0;
    int chanNum = 0;

    int val = 1;
    int contr = 0;
    Soundbank sBank;
    Instrument[] insArr;
    Instrument instr = null;
    Object ev = new Object();

    try {
        synth = MidiSystem.getSynthesizer();
        System.out.println("Got synth: "+synth);
        synth.open();

        int latency = (int) synth.getLatency();
        System.out.println("  -> latency: "
                           +latency
                           +" microseconds");

        mChanArr = synth.getChannels();
        while ((i < mChanArr.length) && (chan == null)) {
            chanNum = i;
            chan = mChanArr[i++];
        }
        if (chan == null) {
            System.out.println("No channels in "
                               +"this synthesizer!");
            return;
        }
        System.out.println("Got MidiChannel: "+chan);


        sBank = synth.getDefaultSoundbank();
        if (sBank == null) {
            System.out.println("No default sound bank!");
            return;
        }


        insArr = sBank.getInstruments();
        for (int j = 0; j < insArr.length; j++) {
            if (insArr[j].getPatch().getBank() == val) {
                instr = insArr[j];
                synth.loadInstrument(instr);
            }
        }
        if (instr == null) {
            System.out.println("No instr. with this bank!");
            return;
        }

        chan.controlChange(contr, val);

        // need to respect the synthesizer's latency
        if (latency > 0) {
            try {
                Thread.sleep(latency/1000);
            } catch (InterruptedException inEx) {
            }
        }

        if (chan.getController(contr) != val) {
            failed = true;
            System.err.println("getController() does not "
                               +"return proper value: "
            + chan.getController(contr));
        }  else {
            System.out.println("getController("
            + contr + ") returns proper value: "
            + chan.getController(contr));
        }

    } catch (MidiUnavailableException mue) {
        System.err.println("MidiUnavailableException was "
                           +"thrown: " + mue);
        System.out.println("could not test.");
        return;
    } catch(SecurityException se) {
        se.printStackTrace();
        System.err.println("Sound access is not denied but "
        + "SecurityException was thrown!");
        return;

    } finally {
        if (synth != null) synth.close();
    }


    if (failed == true) {
        System.out.println("test failed");
    } else {
        System.out.println("OKAY");
    }
    return;
}
 

public int findCurrentBank(int channel) {
	if( channel == PERCUSSION_CHANNEL ) {
		return PERCUSSION_BANK;
	}
	MidiChannel midiChannel = this.getChannel(channel);
	if( midiChannel != null ) {
		return midiChannel.getController(MidiControllers.BANK_SELECT);
	}
	return 0;
}