Load1.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 Load1 {
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.shtml
53        // 0x01 BULK TUNING DUMP
54        SoftTuning tuning = new SoftTuning();
55        byte[] name;
56        name = "Testing123      ".getBytes("ascii");
57
58        int[] msg = new int[24+3*128];
59        int[] head = {0xf0,0x7e,0x7f,0x08,0x01,0x00};
60        int ox = 0;
61        for (int i = 0; i < head.length; i++)
62            msg[ox++] = head[i];
63        for (int i = 0; i < name.length; i++)
64            msg[ox++] = name[i];
65        for (int i = 0; i < 128; i++) {
66            msg[ox++] = i;
67            msg[ox++] = 64;
68            msg[ox++] = 0;
69        }
70
71        // Calc checksum
72        int x = msg[1] & 0xFF; // 7E
73        x = x ^ (msg[2] & 0xFF); // <device ID>
74        x = x ^ (msg[4] & 0xFF); // nn
75        x = x ^ (msg[5] & 0xFF); // tt
76        for (int i = 22; i < msg.length - 2; i++)
77            x = x ^ (msg[i] & 0xFF);
78        msg[ox++] = (x & 127);
79
80        msg[ox++] = 0xf7;
81        byte[] bmsg = new byte[msg.length];
82        for (int i = 0; i < bmsg.length; i++)
83            bmsg[i] = (byte)msg[i];
84
85        tuning.load(bmsg);
86        assertEquals(tuning.getName(), "Testing123      ");
87        double[] tunings = tuning.getTuning();
88        for (int i = 0; i < tunings.length; i++)
89            assertTrue(Math.abs(tunings[i]-(i*100 + 50)) < 0.00001);
90
91        // Check if tuning fails if checksum is wrong
92        /*
93        msg[msg.length - 2] += 10;
94        for (int i = 0; i < bmsg.length; i++)
95            bmsg[i] = (byte)msg[i];
96        tuning = new SoftTuning();
97        tuning.load(bmsg);
98        assertTrue(!tuning.getName().equals("Testing123      "));
99        */
100    }
101}
102