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Viewing changes to TuxGuitar-jsa/src/org/herac/tuxguitar/player/impl/jsa/sequencer/MidiReceiverImpl.java

  • Committer: Bazaar Package Importer
  • Author(s): Philippe Coval
  • Date: 2008-06-19 00:30:30 UTC
  • mto: (5.1.2 sid)
  • mto: This revision was merged to the branch mainline in revision 3.
  • Revision ID: james.westby@ubuntu.com-20080619003030-h719szrhsngou7c6
Tags: upstream-1.0
Import upstream version 1.0

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TuxGuitar-jsa/src/org/herac/tuxguitar/player/impl/jsa/sequencer/MidiReceiverImpl.java
 
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package org.herac.tuxguitar.player.impl.jsa.sequencer;
 
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import javax.sound.midi.MidiMessage;
 
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import javax.sound.midi.Receiver;
 
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import javax.sound.midi.ShortMessage;
 
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import org.herac.tuxguitar.player.base.MidiPlayerException;
 
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import org.herac.tuxguitar.player.base.MidiSequencer;
 
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public class MidiReceiverImpl implements Receiver{
 
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        private MidiSequencer sequencer;
 
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        public MidiReceiverImpl(MidiSequencer sequencer){
 
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                this.sequencer = sequencer;
 
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        }
 
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        public void send(MidiMessage message, long timeStamp) {
 
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                try {
 
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                        parseMessage(message.getMessage());
 
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                } catch (MidiPlayerException e) {
 
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                        e.printStackTrace();
 
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                }
 
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        }
 
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        public void close(){
 
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                //not implemented
 
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        }
 
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        private void parseMessage(byte[] data) throws MidiPlayerException{
 
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                int length = data.length;
 
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                //NOTE ON
 
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                if((((length > 0)?(data[0] & 0xFF):0) & 0xF0) == ShortMessage.NOTE_ON){
 
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                        parseNoteOn(data);
 
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                }
 
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                //NOTE OFF
 
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                else if((((length > 0)?(data[0] & 0xFF):0) & 0xF0) == ShortMessage.NOTE_OFF){
 
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                        parseNoteOff(data);
 
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                }
 
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                //PROGRAM CHANGE
 
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                else if((((length > 0)?(data[0] & 0xFF):0) & 0xF0) == ShortMessage.PROGRAM_CHANGE){
 
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                        parseProgramChange(data);
 
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                }
 
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                //CONTROL CHANGE
 
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                else if((((length > 0)?(data[0] & 0xFF):0) & 0xF0) == ShortMessage.CONTROL_CHANGE){
 
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                        parseControlChange(data);
 
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                }
 
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                //PITCH BEND
 
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                else if((((length > 0)?(data[0] & 0xFF):0) & 0xF0) == ShortMessage.PITCH_BEND){
 
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                        parsePitchBend(data);
 
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                }
 
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        }
 
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        private void parseNoteOn(byte[] data) throws MidiPlayerException{
 
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                int length = data.length;
 
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                int channel = (length > 0)?((data[0] & 0xFF) & 0x0F):0;
 
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                int value = (length > 1)?(data[1] & 0xFF):0;
 
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                int velocity = (length > 2)?(data[2] & 0xFF):0;
 
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                if(velocity == 0){
 
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                        parseNoteOff(data);
 
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                }else if(value > 0){
 
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                        this.sequencer.getMidiPort().out().sendNoteOn(channel,value,velocity);
 
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                }
 
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        }
 
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        private void parseNoteOff(byte[] data) throws MidiPlayerException{
 
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                int length = data.length;
 
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                int channel = (length > 0)?((data[0] & 0xFF) & 0x0F):0;
 
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                int value = (length > 1)?(data[1] & 0xFF):0;
 
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                int velocity = (length > 2)?(data[2] & 0xFF):0;
 
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                this.sequencer.getMidiPort().out().sendNoteOff(channel,value,velocity);
 
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        }
 
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        private void parseProgramChange(byte[] data) throws MidiPlayerException{
 
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                int length = data.length;
 
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                int channel = (length > 0)?((data[0] & 0xFF) & 0x0F):-1;
 
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                int instrument = (length > 1)?(data[1] & 0xFF):-1;
 
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                if(channel != -1 && instrument != -1){
 
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                        this.sequencer.getMidiPort().out().sendProgramChange(channel,instrument);
 
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                }
 
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        }
 
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        private void parseControlChange(byte[] data) throws MidiPlayerException{
 
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                int length = data.length;
 
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                int channel = (length > 0)?((data[0] & 0xFF) & 0x0F):-1;
 
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                int control = (length > 1)?(data[1] & 0xFF):-1;
 
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                int value = (length > 2)?(data[2] & 0xFF):-1;
 
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                if(channel != -1 && control != -1 && value != -1){
 
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                        this.sequencer.getMidiPort().out().sendControlChange(channel,control,value);
 
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                }
 
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        }
 
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        private void parsePitchBend(byte[] data) throws MidiPlayerException{
 
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                int length = data.length;
 
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                int channel = (length > 0)?((data[0] & 0xFF) & 0x0F):-1;
 
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                int value = (length > 2)?(data[2] & 0xFF):-1;
 
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                if(channel != -1 && value != -1){
 
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                        this.sequencer.getMidiPort().out().sendPitchBend(channel,value);
 
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                }
 
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        }
 
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}