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
  23  * questions.
  24  */

  25 package com.sun.media.sound;
  26 
  27 import javax.sound.sampled.Mixer;
  28 import javax.sound.sampled.Mixer.Info;
  29 import javax.sound.sampled.spi.MixerProvider;
  30 
  31 /**
  32  * Provider for software audio mixer
  33  *
  34  * @author Karl Helgason
  35  */
  36 public final class SoftMixingMixerProvider extends MixerProvider {
  37 
  38     static SoftMixingMixer globalmixer = null;
  39 
  40     static Thread lockthread = null;
  41 
  42     static final Object mutex = new Object();
  43 

  44     public Mixer getMixer(Info info) {
  45         if (!(info == null || info == SoftMixingMixer.info)) {
  46             throw new IllegalArgumentException("Mixer " + info.toString()
  47                     + " not supported by this provider.");
  48         }
  49         synchronized (mutex) {
  50             if (lockthread != null)
  51                 if (Thread.currentThread() == lockthread)
  52                     throw new IllegalArgumentException("Mixer "
  53                             + info.toString()
  54                             + " not supported by this provider.");
  55             if (globalmixer == null)
  56                 globalmixer = new SoftMixingMixer();
  57             return globalmixer;
  58         }
  59 
  60     }
  61 

  62     public Info[] getMixerInfo() {
  63         return new Info[] { SoftMixingMixer.info };
  64     }
  65 
  66 }

   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
  23  * questions.
  24  */
  25 
  26 package com.sun.media.sound;
  27 
  28 import javax.sound.sampled.Mixer;
  29 import javax.sound.sampled.Mixer.Info;
  30 import javax.sound.sampled.spi.MixerProvider;
  31 
  32 /**
  33  * Provider for software audio mixer.
  34  *
  35  * @author Karl Helgason
  36  */
  37 public final class SoftMixingMixerProvider extends MixerProvider {
  38 
  39     static SoftMixingMixer globalmixer = null;
  40 
  41     static Thread lockthread = null;
  42 
  43     static final Object mutex = new Object();
  44 
  45     @Override
  46     public Mixer getMixer(Info info) {
  47         if (!(info == null || info == SoftMixingMixer.info)) {
  48             throw new IllegalArgumentException("Mixer " + info.toString()
  49                     + " not supported by this provider.");
  50         }
  51         synchronized (mutex) {
  52             if (lockthread != null)
  53                 if (Thread.currentThread() == lockthread)
  54                     throw new IllegalArgumentException("Mixer "
  55                             + info.toString()
  56                             + " not supported by this provider.");
  57             if (globalmixer == null)
  58                 globalmixer = new SoftMixingMixer();
  59             return globalmixer;
  60         }

  61     }
  62 
  63     @Override
  64     public Info[] getMixerInfo() {
  65         return new Info[] { SoftMixingMixer.info };
  66     }

  67 }