67 lines
2.4 KiB
Java
67 lines
2.4 KiB
Java
/*
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* Copyright (c) 2008, 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 javax.sound.sampled.Mixer;
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import javax.sound.sampled.Mixer.Info;
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import javax.sound.sampled.spi.MixerProvider;
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/**
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* Provider for software audio mixer
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*
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* @author Karl Helgason
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*/
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public final class SoftMixingMixerProvider extends MixerProvider {
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static SoftMixingMixer globalmixer = null;
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static Thread lockthread = null;
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static final Object mutex = new Object();
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public Mixer getMixer(Info info) {
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if (!(info == null || info == SoftMixingMixer.info)) {
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throw new IllegalArgumentException("Mixer " + info.toString()
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+ " not supported by this provider.");
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}
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synchronized (mutex) {
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if (lockthread != null)
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if (Thread.currentThread() == lockthread)
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throw new IllegalArgumentException("Mixer "
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+ info.toString()
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+ " not supported by this provider.");
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if (globalmixer == null)
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globalmixer = new SoftMixingMixer();
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return globalmixer;
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}
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}
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public Info[] getMixerInfo() {
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return new Info[] { SoftMixingMixer.info };
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}
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}
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