/*
* Created on 5 Sep 2007
*
* Copyright (c) 2004-2007 Paul John Leonard
*
* http://www.frinika.com
*
* This file is part of Frinika.
*
* Frinika is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* Frinika is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with Frinika; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.frinika.tootX.midi;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.sound.midi.InvalidMidiDataException;
import javax.sound.midi.ShortMessage;
public class MidiHashUtil {
static public long hashValue(ShortMessage mess) {
byte data[] = mess.getMessage();
long cmd = mess.getCommand();
if (cmd == ShortMessage.PITCH_BEND) {
return ((long) data[0] << 8);
} else {
return (((long) data[0] << 8) + data[1]);
}
}
static public void hashDisp(long hash) {
long cntrl = hash & 0xFF;
long cmd = (hash >> 8) & 0xFF;
long chn = (hash >> 16) & 0xFF;
System.out.println(chn + " " + cmd + " " + cntrl);
}
static ShortMessage reconstructShortMessage(long hash, ShortMessage mess) {
if (mess == null) mess=new ShortMessage();
int status = (int) ((hash >> 8) & 0xFF);
int data1 = (int) (hash & 0xFF);
try {
mess.setMessage(status, data1, 0);
} catch (InvalidMidiDataException ex) {
Logger.getLogger(MidiHashUtil.class.getName()).log(Level.SEVERE, null, ex);
}
return mess;
}
}