1 /*
   2  * Copyright (c) 2007, 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
  23  * questions.
  24  */
  25 
  26 /* @test
  27    @summary Test SoftChannel noteOn/noteOff overflow test */
  28 
  29 import javax.sound.midi.MidiChannel;
  30 import javax.sound.midi.VoiceStatus;
  31 import javax.sound.sampled.AudioFormat;
  32 import javax.sound.sampled.AudioInputStream;
  33 
  34 import com.sun.media.sound.AudioSynthesizer;
  35 import com.sun.media.sound.SoftSynthesizer;
  36 
  37 public class NoteOverFlowTest {
  38 
  39     public static void main(String[] args) throws Exception
  40     {
  41         AudioSynthesizer synth = new SoftSynthesizer();
  42         AudioFormat format = new AudioFormat(44100, 16, 2, true, false);
  43         AudioInputStream stream = synth.openStream(format, null);
  44 
  45         // Make all voices busy, e.g.
  46         // send midi on and midi off on all available voices
  47         MidiChannel ch1 = synth.getChannels()[0];
  48         ch1.programChange(48); // Use contionus instrument like string ensemble
  49         for (int i = 0; i < synth.getMaxPolyphony(); i++) {
  50             ch1.noteOn(64, 64);
  51             ch1.noteOff(64);
  52         }
  53 
  54         // Now send single midi on, and midi off message
  55         ch1.noteOn(64, 64);
  56         ch1.noteOff(64);
  57 
  58         // Read 10 sec from stream, by this time all voices should be inactvie
  59         stream.skip(format.getFrameSize() * ((int)(format.getFrameRate() * 20)));
  60 
  61         // If no voice are active, then this test will pass
  62         VoiceStatus[] v = synth.getVoiceStatus();
  63         for (int i = 0; i < v.length; i++) {
  64             if(v[i].active)
  65             {
  66                 throw new RuntimeException("Not all voices are inactive!");
  67             }
  68         }
  69 
  70         // Close the synthesizer after use
  71         synth.close();
  72     }
  73 }