Examples of javax.sound.midi.ShortMessage

javax.sound.midi.ShortMessage
A ShortMessage contains a MIDI message that has at most two data bytes following its status byte. The types of MIDI message that satisfy this criterion are channel voice, channel mode, system common, and system real-time--in other words, everything except system exclusive and meta-events. The ShortMessage class provides methods for getting and setting the contents of the MIDI message.
A number of ShortMessage methods have integer parameters by which you specify a MIDI status or data byte. If you know the numeric value, you can express it directly. For system common and system real-time messages, you can often use the corresponding fields of ShortMessage, such as {@link #SYSTEM_RESET SYSTEM_RESET}. For channel messages, the upper four bits of the status byte are specified by a command value and the lower four bits are specified by a MIDI channel number. To convert incoming MIDI data bytes that are in the form of Java's signed bytes, you can use the conversion code given in the {@link MidiMessage} class description. @see SysexMessage @see MetaMessage @author David Rivas @author Kara Kytle @author Florian Bomers

                    byte[] m = d.msg.getMessage();
                    if ((m[0] & 0xFF) >> 4 == 0x09)
                    {
                        float fv = (float)(m[2] & 0xFF) * factor;
                        m[2] = (byte)fv;
                        ShortMessage m2 = new ShortMessage();
                        try {
                            m2.setMessage(NOTE_ON, m[0] & 0x0F, (int)(m[1] & 0xFF), (int)(m[2] & 0xFF));
                            d.msg = m2;
                        } catch(InvalidMidiDataException ex)
                        {
                            ex.printStackTrace();
                        }

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                    byte[] m = d.msg.getMessage();
                    if ((m[0] & 0xFF) >> 4 == 0x09)
                    {
                        float fv = (float)(m[2] & 0xFF) * factor;
                        m[2] = (byte)fv;
                        ShortMessage m2 = new ShortMessage();
                        try {
                            m2.setMessage(NOTE_ON, m[0] & 0x0F, (int)(m[1] & 0xFF), (int)(m[2] & 0xFF));
                            d.msg = m2;
                        } catch(InvalidMidiDataException ex)
                        {
                            ex.printStackTrace();
                        }

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        offset = off;
        msg = m;
    }
    public MidimsgHolder(long offset, int cmd, int chn, int data1, int data2) throws InvalidMidiDataException
    {
        msg = new ShortMessage();
        ((ShortMessage)msg).setMessage(cmd, chn, data1, data2);
        this.offset = offset;
    }

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    setMidiOutDevice(dOut);
  }


  protected MidiThread() {
    if (CLOCK_MESSAGE==null) {
      CLOCK_MESSAGE=new ShortMessage();
      SYSTEM_RESET_MESSAGE=new ShortMessage();
      ALIVE_MESSAGE=new ShortMessage();
      try {
        CLOCK_MESSAGE.setMessage(ShortMessage.TIMING_CLOCK);
        SYSTEM_RESET_MESSAGE.setMessage(ShortMessage.SYSTEM_RESET);
        ALIVE_MESSAGE.setMessage(ShortMessage.ACTIVE_SENSING);
      } catch (Exception ex) {

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    return channel;
  }


  public boolean initTestMessages() {
      try {
      ShortMessage sm=new ShortMessage();
      sm.setMessage(ShortMessage.SYSTEM_RESET,0,0);
      enqueueEvent(sm);
      if (programNumber!=-1) {
        sm=new ShortMessage();
        sm.setMessage(ShortMessage.PROGRAM_CHANGE, programNumber, 0);
        enqueueEvent(sm);
      }
      switch (testMode) {
        case TEST_DRUMS: {
          addDrumEvents(channel);

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      return true;
    }


  public void emitNoteOn(int note) throws Exception {
    assertValidMidiValue(note, "note pitch");
    ShortMessage sm=new ShortMessage();
    try {
      sm.setMessage(ShortMessage.NOTE_ON, note, 100);
      enqueueEvent(sm);
    } catch (Exception ex) {
      log.error("failed emitting note on", ex);
      throw ex;
    }

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    }
  }


  public void emitNoteOff(int note) {
    assertValidMidiValue(note, "note pitch");
    ShortMessage sm=new ShortMessage();
    try {
      sm.setMessage(ShortMessage.NOTE_OFF, note, 100);
      enqueueEvent(sm);
    } catch (Exception ex) {
      log.error("failed emitting note off", ex);
    }
  }

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      throw new IllegalArgumentException("Value for "+valueName+" may range only from 0..127, "+val+" is therefore invalid");
    }
  }


  private void addDrumEvents(int channel) {
    ShortMessage sm;
    try {
      for (int i=0;i<30; i++) {
        sm=new MessageWrapper(250);
        sm.setMessage(ShortMessage.NOTE_ON, channel, 40+i, 100);
        enqueueEvent(sm);
        enqueueEvent(new MessageWrapper(50, true));


        sm=new ShortMessage();
        sm.setMessage(ShortMessage.NOTE_OFF, channel, 40+i, 100);
        enqueueEvent(sm);
      }
    } catch (Exception ex) {
      log.error("failed to add drum events", ex);
    }

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    }
  }


  private void addMelodyEvents(int channel) {
    try {
      ShortMessage sm=null;
      sm=new MessageWrapper(750);
      sm.setMessage(ShortMessage.NOTE_ON, channel, 64, 100);
      enqueueEvent(sm);


      sm=new MessageWrapper(0,true);
      sm.setMessage(ShortMessage.NOTE_OFF, channel, 64, 100);
      enqueueEvent(sm);


      sm=new MessageWrapper(500);
      sm.setMessage(ShortMessage.NOTE_ON, channel, 70, 100);
      enqueueEvent(sm);


      sm=new MessageWrapper(0,true);
      sm.setMessage(ShortMessage.NOTE_OFF, channel, 70, 100);
      enqueueEvent(sm);


      sm=new MessageWrapper(250);
      sm.setMessage(ShortMessage.NOTE_ON, channel, 70, 100);
      enqueueEvent(sm);


      sm=new MessageWrapper(0,true);
      sm.setMessage(ShortMessage.NOTE_OFF, channel, 70, 100);
      enqueueEvent(sm);


      sm=new MessageWrapper(1000);
      sm.setMessage(ShortMessage.NOTE_ON, channel, 67, 100);
      enqueueEvent(sm);


      sm=new MessageWrapper(0,true);
      sm.setMessage(ShortMessage.NOTE_OFF, channel, 67, 100);
      enqueueEvent(sm);
    } catch (Exception ex) {
      log.error("failed to add melody events", ex);
    }
  }

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      // the incoming NOTE-events to become events of the
      // right channel (RackAttack has 12 of them each with
      // a possibly different sound loaded)
      if (message.getStatus()==ShortMessage.NOTE_ON ||
          message.getStatus()==ShortMessage.NOTE_OFF) {
        ShortMessage sm=(ShortMessage)message;
        try {
          sm.setMessage(sm.getCommand(), 
              ApplicationContext.getInstance().getActiveMidiChannel(), 
              sm.getData1(), sm.getData2());
        } catch (Exception ex) {
        }
        if (message.getStatus()==ShortMessage.NOTE_ON) {
          Note n=new Note(sm.getData1());
          NoteDispatcher.getInstance().notePlayed(n);
        }
      }
      MidiThread.getInstance().enqueueEvent(message);
    } catch (Exception ex) {

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