/*
* Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* 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,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.media.sound;
import javax.sound.sampled.Mixer;
import javax.sound.sampled.Mixer.Info;
import javax.sound.sampled.spi.MixerProvider;
/**
* Provider for software audio mixer
*
* @author Karl Helgason
*/
public class SoftMixingMixerProvider extends MixerProvider {
static SoftMixingMixer globalmixer = null;
static Thread lockthread = null;
protected final static Object mutex = new Object();
public Mixer getMixer(Info info) {
if (!(info == null || info == SoftMixingMixer.info)) {
throw new IllegalArgumentException("Mixer " + info.toString()
+ " not supported by this provider.");
}
synchronized (mutex) {
if (lockthread != null)
if (Thread.currentThread() == lockthread)
throw new IllegalArgumentException("Mixer "
+ info.toString()
+ " not supported by this provider.");
if (globalmixer == null)
globalmixer = new SoftMixingMixer();
return globalmixer;
}
}
public Info[] getMixerInfo() {
return new Info[] { SoftMixingMixer.info };
}
}