1 /*
2 * Copyright (c) 2003, 2016, 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 import javax.sound.midi.InvalidMidiDataException;
25 import javax.sound.midi.MetaMessage;
26 import javax.sound.midi.MidiEvent;
27 import javax.sound.midi.Sequence;
28 import javax.sound.midi.ShortMessage;
29 import javax.sound.midi.Track;
30
31 /**
32 * @test
33 * @bug 4929955
34 * @summary Sequence.getMicrosecondLength() returns wrong value
35 */
36 public class GetMicrosecondLength {
37
38 public static boolean failed = false;
39 //private static Sequencer seq = null;
40
41 public static void main(String[] args) throws Exception {
42 /*
43 try {
44 seq = MidiSystem.getSequencer();
45 } catch (Exception e) {
46 e.printStackTrace();
47 }
48 */
49 for (int sec = 1; sec < 10; sec += 4) {
50 for (int tempo=0; tempo < 1000; tempo+=120) {
51 for (int resolution=1; resolution < 480; ) {
52 testSequence(sec, tempo, resolution);
53 if (resolution == 1) {
54 resolution = 120;
55 } else {
56 resolution += 120;
57 }
58 }
59 }
60 }
61 if (failed) throw new Exception("Test FAILED!");
62 out("Test Passed.");
63 }
64
65 /**
66 * Create a new Sequence for testing.
67 */
68 private static void testSequence(int lengthInSeconds, int tempoInBPM, int resolution) {
69 Sequence sequence = null;
70 long lengthInMicroseconds = lengthInSeconds * 1000000;
71 boolean createTempoEvent = true;
72 if (tempoInBPM == 0) {
73 tempoInBPM = 120;
74 createTempoEvent = false;
75 System.out.print("Creating sequence: "+lengthInSeconds+"sec, "
76 +"resolution="+resolution+" ticks/beat...");
77 } else {
78 System.out.print("Creating sequence: "+lengthInSeconds+"sec, "
79 +tempoInBPM+" beats/min, "
80 +"resolution="+resolution+" ticks/beat...");
81 }
82 //long lengthInTicks = (lengthInMicroseconds * resolution) / tempoInBPM;
83 long lengthInTicks = (lengthInMicroseconds * tempoInBPM * resolution) / 60000000l;
84 //out("expected length in ticks: " + lengthInTicks);
85 try {
86 sequence = new Sequence(Sequence.PPQ, resolution);
87 Track track = sequence.createTrack();
88 if (createTempoEvent) {
89 int tempoInMPQ = (int) (60000000l / tempoInBPM);
90 MetaMessage tm = new MetaMessage();
91 byte[] msg = new byte[3];
92 msg[0] = (byte) (tempoInMPQ >> 16);
93 msg[1] = (byte) ((tempoInMPQ >> 8) & 0xFF);
94 msg[2] = (byte) (tempoInMPQ & 0xFF);
95
96 tm.setMessage(0x51 /* Meta Tempo */, msg, msg.length);
97 track.add(new MidiEvent(tm, 0));
98 //out("regtest: tempoInMPQ="+tempoInMPQ);
99 //out("Added tempo event: new size="+track.size());
100 }
101 ShortMessage mm = new ShortMessage();
102 mm.setMessage(0xF6, 0, 0);
103 MidiEvent me = new MidiEvent(mm, lengthInTicks);
104 track.add(me);
105 //out("Added realtime event: new size="+track.size());
106 } catch (InvalidMidiDataException e) {
107 out(e);
108 }
109 boolean thisFailed = false;
110 long actualLengthInTicks = sequence.getTickLength();
111 // allow +/- 5%
112 if (Math.abs(actualLengthInTicks - lengthInTicks) > lengthInTicks / 20) {
113 out("FAILED:");
114 out(" expected length in ticks: " + lengthInTicks);
115 out(" actual length in ticks : " + actualLengthInTicks);
116 thisFailed = true;
117 }
118 long actualLengthInUs = sequence.getMicrosecondLength();
119 // allow +/- 5%
120 if (Math.abs(actualLengthInUs - lengthInMicroseconds) > lengthInMicroseconds / 20) {
121 if (!thisFailed) {
122 out("FAILED:");
123 }
124 out(" expected length in microsecs: " + lengthInMicroseconds);
125 out(" actual length in microsecs : " + actualLengthInUs);
126 thisFailed = true;
127 }
128 if (!thisFailed) {
129 out("OK");
130 }
131 /*if (seq != null) {
132 try {
133 seq.setSequence(sequence);
134 out("Sequencer tempo="+seq.getTempoInBPM());
135 } catch (Exception e) {
136 e.printStackTrace();
137 }
138 }
139 */
140 failed |= thisFailed;
141 }
142
143
144 private static void out(Throwable t) {
145 t.printStackTrace(System.out);
146 }
147
148 private static void out(String message) {
149 System.out.println(message);
150 }
151 }