/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
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package com.sun.media.sound;
import java.util.TreeMap;
import javax.sound.midi.MidiDevice;
import javax.sound.midi.MidiDeviceReceiver;
import javax.sound.midi.MidiMessage;
import javax.sound.midi.ShortMessage;
/**
* Software synthesizer MIDI receiver class.
*
* @author Karl Helgason
*/
public final class SoftReceiver implements MidiDeviceReceiver {
boolean open = true;
private final Object control_mutex;
private final SoftSynthesizer synth;
TreeMap<Long, Object> midimessages;
SoftMainMixer mainmixer;
public SoftReceiver(SoftSynthesizer synth) {
this.control_mutex = synth.control_mutex;
this.synth = synth;
this.mainmixer = synth.getMainMixer();
if (mainmixer != null)
this.midimessages = mainmixer.midimessages;
}
public MidiDevice getMidiDevice() {
return synth;
}
public void send(MidiMessage message, long timeStamp) {
synchronized (control_mutex) {
if (!open)
throw new IllegalStateException("Receiver is not open");
}
if (timeStamp != -1) {
synchronized (control_mutex) {
mainmixer.activity();
while (midimessages.get(timeStamp) != null)
timeStamp++;
if (message instanceof ShortMessage
&& (((ShortMessage)message).getChannel() > 0xF)) {
midimessages.put(timeStamp, message.clone());
} else {
midimessages.put(timeStamp, message.getMessage());
}
}
} else {
mainmixer.processMessage(message);
}
}
public void close() {
synchronized (control_mutex) {
open = false;
}
synth.removeReceiver(this);
}
}