90 lines
3.0 KiB
Java
90 lines
3.0 KiB
Java
/*
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* Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.media.sound;
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import java.util.TreeMap;
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import javax.sound.midi.MidiDevice;
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import javax.sound.midi.MidiDeviceReceiver;
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import javax.sound.midi.MidiMessage;
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import javax.sound.midi.ShortMessage;
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/**
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* Software synthesizer MIDI receiver class.
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*
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* @author Karl Helgason
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*/
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public final class SoftReceiver implements MidiDeviceReceiver {
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boolean open = true;
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private final Object control_mutex;
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private final SoftSynthesizer synth;
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TreeMap<Long, Object> midimessages;
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SoftMainMixer mainmixer;
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public SoftReceiver(SoftSynthesizer synth) {
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this.control_mutex = synth.control_mutex;
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this.synth = synth;
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this.mainmixer = synth.getMainMixer();
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if (mainmixer != null)
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this.midimessages = mainmixer.midimessages;
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}
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public MidiDevice getMidiDevice() {
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return synth;
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}
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public void send(MidiMessage message, long timeStamp) {
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synchronized (control_mutex) {
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if (!open)
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throw new IllegalStateException("Receiver is not open");
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}
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if (timeStamp != -1) {
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synchronized (control_mutex) {
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mainmixer.activity();
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while (midimessages.get(timeStamp) != null)
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timeStamp++;
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if (message instanceof ShortMessage
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&& (((ShortMessage)message).getChannel() > 0xF)) {
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midimessages.put(timeStamp, message.clone());
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} else {
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midimessages.put(timeStamp, message.getMessage());
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}
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}
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} else {
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mainmixer.processMessage(message);
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}
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}
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public void close() {
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synchronized (control_mutex) {
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open = false;
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}
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synth.removeReceiver(this);
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}
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}
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