| /* |
| * Copyright (c) 2008, 2013, 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| 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 final class SoftMixingMixerProvider extends MixerProvider { |
| |
| static SoftMixingMixer globalmixer = null; |
| |
| static Thread lockthread = null; |
| |
| static final Object mutex = new Object(); |
| |
| @Override |
| 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; |
| } |
| } |
| |
| @Override |
| public Info[] getMixerInfo() { |
| return new Info[] { SoftMixingMixer.info }; |
| } |
| } |