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src/java.desktop/share/classes/com/sun/media/sound/DirectAudioDeviceProvider.java

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   1 /*
   2  * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 104     public Mixer getMixer(Mixer.Info info) {
 105         synchronized (DirectAudioDeviceProvider.class) {
 106             // if the default device is asked, we provide the mixer
 107             // with SourceDataLine's
 108             if (info == null) {
 109                 for (int i = 0; i < infos.length; i++) {
 110                     Mixer mixer = getDevice(infos[i]);
 111                     if (mixer.getSourceLineInfo().length > 0) {
 112                         return mixer;
 113                     }
 114                 }
 115             }
 116             // otherwise get the first mixer that matches
 117             // the requested info object
 118             for (int i = 0; i < infos.length; i++) {
 119                 if (infos[i].equals(info)) {
 120                     return getDevice(infos[i]);
 121                 }
 122             }
 123         }
 124         throw new IllegalArgumentException("Mixer " + info.toString() + " not supported by this provider.");

 125     }
 126 
 127 
 128     private static Mixer getDevice(DirectAudioDeviceInfo info) {
 129         int index = info.getIndex();
 130         if (devices[index] == null) {
 131             devices[index] = new DirectAudioDevice(info);
 132         }
 133         return devices[index];
 134     }
 135 
 136     // INNER CLASSES
 137 
 138 
 139     /**
 140      * Info class for DirectAudioDevices.  Adds an index value and a string for
 141      * making native references to a particular device.
 142      * This constructor is called from native.
 143      */
 144     static final class DirectAudioDeviceInfo extends Mixer.Info {


   1 /*
   2  * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


 104     public Mixer getMixer(Mixer.Info info) {
 105         synchronized (DirectAudioDeviceProvider.class) {
 106             // if the default device is asked, we provide the mixer
 107             // with SourceDataLine's
 108             if (info == null) {
 109                 for (int i = 0; i < infos.length; i++) {
 110                     Mixer mixer = getDevice(infos[i]);
 111                     if (mixer.getSourceLineInfo().length > 0) {
 112                         return mixer;
 113                     }
 114                 }
 115             }
 116             // otherwise get the first mixer that matches
 117             // the requested info object
 118             for (int i = 0; i < infos.length; i++) {
 119                 if (infos[i].equals(info)) {
 120                     return getDevice(infos[i]);
 121                 }
 122             }
 123         }
 124         throw new IllegalArgumentException(
 125                 String.format("Mixer %s not supported by this provider", info));
 126     }
 127 
 128 
 129     private static Mixer getDevice(DirectAudioDeviceInfo info) {
 130         int index = info.getIndex();
 131         if (devices[index] == null) {
 132             devices[index] = new DirectAudioDevice(info);
 133         }
 134         return devices[index];
 135     }
 136 
 137     // INNER CLASSES
 138 
 139 
 140     /**
 141      * Info class for DirectAudioDevices.  Adds an index value and a string for
 142      * making native references to a particular device.
 143      * This constructor is called from native.
 144      */
 145     static final class DirectAudioDeviceInfo extends Mixer.Info {


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