Load6.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
26/* @test
27   @summary Test SoftTuning load method */
28
29import java.io.UnsupportedEncodingException;
30
31import javax.sound.midi.MidiUnavailableException;
32import javax.sound.midi.Patch;
33import javax.sound.sampled.*;
34
35import com.sun.media.sound.*;
36
37public class Load6 {
38
39    private static void assertEquals(Object a, Object b) throws Exception
40    {
41        if(!a.equals(b))
42            throw new RuntimeException("assertEquals fails!");
43    }
44
45    private static void assertTrue(boolean value) throws Exception
46    {
47        if(!value)
48            throw new RuntimeException("assertTrue fails!");
49    }
50
51    public static void main(String[] args) throws Exception {
52        // http://www.midi.org/about-midi/tuning_extens.shtml
53        // 0x06 SCALE/OCTAVE TUNING DUMP, 2 byte format
54        SoftTuning tuning = new SoftTuning();
55
56        byte[] name;
57        name = "Testing123      ".getBytes("ascii");
58        int[] msg = {0xf0,0x7e,0x7f,0x08,0x06,0,0,
59                name[0],name[1],name[2],name[3],name[4],name[5],name[6],
60                name[7],name[8],name[9],name[10],name[11],name[12],name[13],
61                name[14],name[15],
62                5,10,15,20,25,30,35,40,45,50,51,52,
63                5,10,15,20,25,30,35,40,45,50,51,52,
64                0,0xf7};
65        // Calc checksum
66        int x = msg[1] & 0xFF;
67        for (int i = 2; i < msg.length - 2; i++)
68            x = x ^ (msg[i] & 0xFF);
69        msg[msg.length-2] = (x & 127);
70
71        int[] oct = {5,10,15,20,25,30,35,40,45,50,51,52,5,10,15,20,25,30,35,40,45,50,51,52};
72        byte[] bmsg = new byte[msg.length];
73        for (int i = 0; i < bmsg.length; i++)
74            bmsg[i] = (byte)msg[i];
75        tuning.load(bmsg);
76        double[] tunings = tuning.getTuning();
77        for (int i = 0; i < tunings.length; i++)
78        {
79            double c = (oct[(i%12)*2]*128 + oct[(i%12)*2+1] -8192)*(100.0/8192.0);
80            assertTrue(Math.abs(tunings[i]-(i*100 + (c))) < 0.00001);
81        }
82
83        // Check if tuning fails if checksum is wrong
84        msg[msg.length - 2] += 10;
85        for (int i = 0; i < bmsg.length; i++)
86            bmsg[i] = (byte)msg[i];
87        tuning = new SoftTuning();
88        tuning.load(bmsg);
89        assertTrue(!tuning.getName().equals("Testing123      "));
90    }
91}
92