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