SoftTestUtils.java revision 829:b06c29386f63 
1/*
2 * Copyright 2007 Sun Microsystems, Inc.  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.  Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26import java.io.IOException;
27
28import javax.sound.midi.*;
29import javax.sound.sampled.*;
30
31import com.sun.media.sound.*;
32
33public class SoftTestUtils {
34
35    public AudioSynthesizer synth = new SoftSynthesizer();
36    public AudioInputStream stream;
37    public byte[] tmpbuffer = new byte[1024];
38
39    public static SF2Soundbank createTestSoundBank()
40    {
41        SF2Soundbank sf2 = new SF2Soundbank();
42        AudioFormat format = new AudioFormat(44100, 16, 1, true, false);
43        float[] data = new float[44100+1000];
44        float fr = 440/format.getSampleRate();
45        for (int i = 0; i < data.length; i++)
46            data[i] = (float)Math.sin(i*fr*2*Math.PI);
47        byte[] bdata = new byte[data.length*format.getFrameSize()];
48        AudioFloatConverter.getConverter(format).toByteArray(data, bdata);
49        SF2Sample sample = new SF2Sample(sf2);
50        sample.setName("Test Sample");
51        sample.setData(bdata);
52        sample.setStartLoop(500);
53        sample.setEndLoop(data.length - 500);
54        sample.setSampleRate((long) format.getSampleRate());
55        sample.setOriginalPitch(69);
56        sf2.addResource(sample);
57        SF2Layer layer = new SF2Layer(sf2);
58        layer.setName("Test Layer");
59        sf2.addResource(layer);
60        SF2LayerRegion region = new SF2LayerRegion();
61        region.putInteger(SF2Region.GENERATOR_SAMPLEMODES, 1);
62        region.setSample(sample);
63        layer.getRegions().add(region);
64        SF2Instrument ins = new SF2Instrument(sf2);
65        ins.setName("Test Instrument");
66        sf2.addInstrument(ins);
67        SF2InstrumentRegion insregion = new SF2InstrumentRegion();
68        insregion.setLayer(layer);
69        ins.getRegions().add(insregion);
70
71        return sf2;
72    }
73
74    public SoftTestUtils() throws Exception {
75        stream = synth.openStream(null, null);
76        synth.unloadAllInstruments(synth.getDefaultSoundbank());
77        synth.loadAllInstruments(createTestSoundBank());
78    }
79
80    public void close() throws Exception {
81        stream.close();
82        stream = null;
83        synth.close();
84        synth = null;
85    }
86
87    public void read(double seconds) throws IOException
88    {
89        int bufflen =
90           stream.getFormat().getFrameSize() *
91           (int)(stream.getFormat().getFrameRate() * seconds);
92        while(bufflen != 0)
93        {
94            if(bufflen > 1024)
95                bufflen -= stream.read(tmpbuffer,0,1024);
96            else
97                bufflen -= stream.read(tmpbuffer,0, bufflen);
98        }
99    }
100
101    public VoiceStatus findVoice(int channel, int note) {
102        VoiceStatus[] v = synth.getVoiceStatus();
103        for (int k = 0; k < v.length; k++)
104            if(v[k].active)
105                if(v[k].channel == channel)
106                    if(v[k].note == note)
107                        return v[k];
108        return null;
109    }
110
111}
112