NoteOverFlowTest.java revision 8729:0242fce0f717 
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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/* @test
25   @summary Test SoftChannel noteOn/noteOff overflow test */
26
27import javax.sound.midi.MidiChannel;
28import javax.sound.midi.VoiceStatus;
29import javax.sound.sampled.AudioFormat;
30import javax.sound.sampled.AudioInputStream;
31
32import com.sun.media.sound.AudioSynthesizer;
33import com.sun.media.sound.SoftSynthesizer;
34
35public class NoteOverFlowTest {
36
37    public static void main(String[] args) throws Exception
38    {
39        AudioSynthesizer synth = new SoftSynthesizer();
40        AudioFormat format = new AudioFormat(44100, 16, 2, true, false);
41        AudioInputStream stream = synth.openStream(format, null);
42
43        // Make all voices busy, e.g.
44        // send midi on and midi off on all available voices
45        MidiChannel ch1 = synth.getChannels()[0];
46        ch1.programChange(48); // Use contionus instrument like string ensemble
47        for (int i = 0; i < synth.getMaxPolyphony(); i++) {
48            ch1.noteOn(64, 64);
49            ch1.noteOff(64);
50        }
51
52        // Now send single midi on, and midi off message
53        ch1.noteOn(64, 64);
54        ch1.noteOff(64);
55
56        // Read 10 sec from stream, by this time all voices should be inactvie
57        stream.skip(format.getFrameSize() * ((int)(format.getFrameRate() * 20)));
58
59        // If no voice are active, then this test will pass
60        VoiceStatus[] v = synth.getVoiceStatus();
61        for (int i = 0; i < v.length; i++) {
62            if(v[i].active)
63            {
64                throw new RuntimeException("Not all voices are inactive!");
65            }
66        }
67
68        // Close the synthesizer after use
69        synth.close();
70    }
71}
72