annotate src/samer/midi/MidiWithAftertouch.java @ 0:bf79fb79ee13

Initial Mercurial check in.

/*
 *	Copyright (c) 2000, Samer Abdallah, King's College London.
 *	All rights reserved.
 *
 *	This software is provided AS iS and WITHOUT ANY WARRANTY; 
 *	without even the implied warranty of MERCHANTABILITY or 
 *	FITNESS FOR A PARTICULAR PURPOSE.
 */

package samer.midi;
import samer.core.*;
import samer.core.types.*;
import samer.core.util.heavy.*;
import samer.core.util.*;
import samer.tools.*;
import samer.maths.*;
import java.util.*;
import java.io.*;
import javax.sound.midi.*;


/**
	When element crosses threshold upwards:	note on
	When element drops below threshold:			note off
	While element remains above threshold		adjust velocity
  */

public class MidiWithAftertouch extends MidiSynth
{
	protected boolean		[] states;

	public MidiWithAftertouch(VVector input)
	{
		super(input);

		states= new boolean[n];
		for (int i=0; i<n; i++) states[i]=false;
	}

	public void run()
	{
		if (synthesizer==null) return; 

		for (int i=0; i<n; i++) {
			if (x[i]>0) {
				int vel=mapVelocity(x[i]);
				if (!states[i]) {
					cc[chans[i]].noteOn(nnums[i]+offset.value,vel);
					states[i]=true;
				} else {
					// note is still on - adjust pressure--not working
					cc[chans[i]].setPolyPressure(nnums[i]+offset.value,vel);
				}
			} else if (states[i]) { // note is on but now below thresh
				if (!pedal.value) cc[chans[i]].noteOff(nnums[i]+offset.value, 0);
				states[i]=false;
			}
		}
	}
}