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 java.io.ByteArrayInputStream;

    25 import java.io.ByteArrayOutputStream;

    26 import java.io.InputStream;

    27 

    28 import javax.sound.midi.MidiEvent;

    29 import javax.sound.midi.MidiSystem;

    30 import javax.sound.midi.Sequence;

    31 import javax.sound.midi.ShortMessage;

    32 import javax.sound.midi.Track;

    33 

    34 /**

    35  * @test

    36  * @bug 4851018

    37  * @summary MidiMessage.getLength and .getData return wrong values.

    38  *          also: 4890405: Reading MidiMessage byte array fails in 1.4.2

    39  */

    40 public class FastShortMessage {

    41     public static void main(String args[]) throws Exception {

    42         int[] dataMes =  {ShortMessage.NOTE_ON | 9, 0x24, 0x50};

    43         int res = 240;

    44         Sequence midiData = new Sequence(Sequence.PPQ, res);

    45 

    46         Track track = midiData.createTrack();

    47         ShortMessage msg = new ShortMessage();

    48         msg.setMessage(dataMes[0], dataMes[1], dataMes[2]);

    49         track.add(new MidiEvent(msg, 0));

    50 

    51         // save sequence to outputstream

    52         ByteArrayOutputStream baos = new ByteArrayOutputStream();

    53         MidiSystem.write(midiData, 0, baos);

    54 

    55         // reload that sequence

    56         InputStream is = new ByteArrayInputStream(baos.toByteArray());

    57         Sequence seq = MidiSystem.getSequence(is);

    58 

    59         track = seq.getTracks()[0];

    60         msg = (ShortMessage) (track.get(0).getMessage());

    61         byte[] msgData = msg.getMessage();

    62 

    63         if (msgData.length != dataMes.length

    64          || (msgData[0] & 0xFF) != dataMes[0]

    65          || (msgData[1] & 0xFF) != dataMes[1]

    66          || (msgData[2] & 0xFF) != dataMes[2]) {

    67             throw new Exception("test failed. read length="+msgData.length);

    68         }

    69         System.out.println("Test Passed.");

    70     }

    71 }