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SeqRecordDoesNotCopy.java
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SeqRecordDoesNotCopy.java
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/*
* Copyright (c) 2004, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import javax.sound.midi.MidiEvent;
import javax.sound.midi.MidiMessage;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.MidiUnavailableException;
import javax.sound.midi.Receiver;
import javax.sound.midi.Sequence;
import javax.sound.midi.Sequencer;
import javax.sound.midi.ShortMessage;
import javax.sound.midi.Track;
/**
* @test
* @key sound
* @bug 5048381
* @summary Sequencer doesn't create distinct messages when recording events.
*/
public class SeqRecordDoesNotCopy {
public static void main(String argv[]) {
Sequencer s = null;
try {
s = MidiSystem.getSequencer();
s.open();
} catch (final MidiUnavailableException ignored) {
// the test is not applicable
return;
}
try {
Sequence seq = new Sequence(Sequence.PPQ, 384, 2);
s.setSequence(seq);
Track t = seq.getTracks()[0];
ShortMessage msg = new ShortMessage();
msg.setMessage(0x90, 0x40, 0x7F);
t.add(new MidiEvent(msg, 11000));
msg.setMessage(0x90, 0x40, 0x00);
t.add(new MidiEvent(msg, 12000));
t = seq.getTracks()[1];
s.recordEnable(t, -1);
System.out.println("Started recording...");
s.startRecording();
Receiver r = s.getReceiver();
Thread.sleep(100);
// send a normal message
System.out.println("Recording a normal NOTE ON message...");
msg.setMessage(0x90, 0x40, 0x6F);
r.send(msg, -1);
Thread.sleep(100);
// send a normal message
System.out.println("Recording a normal NOTE OFF message...");
msg.setMessage(0x90, 0x40, 0x00);
r.send(msg, -1);
Thread.sleep(100);
s.stop();
// now see if the messages were recorded
System.out.println("Recorded messages:");
int sameMessage = 0;
for (int i = 0; i < t.size(); i++) {
System.out.print(" "+(i+1)+". ");
printEvent(t.get(i));
if (t.get(i).getMessage() == msg) {
System.out.println("## Failed: Same Message reference!");
sameMessage++;
}
}
if (sameMessage > 0) {
System.out.println("## Failed: The same instance was recorded!");
throw new Exception("Test FAILED!");
}
System.out.println("Did not detect any duplicate messages.");
System.out.println("Test passed.");
} catch (Exception e) {
System.out.println("Unexpected Exception: "+e);
//e.printStackTrace();
throw new RuntimeException("Test FAILED!");
} finally {
s.close();
}
}
public static void printEvent(MidiEvent event)
{
MidiMessage message = event.getMessage();
long tick = event.getTick();
byte[] data = message.getMessage();
StringBuffer sb = new StringBuffer((data.length * 3) - 1);
for (int i = 0; i < data.length; i++)
{
sb.append(toHexByteString(data[i]));
if (i < data.length - 1) sb.append(' ');
}
System.out.printf("%5d: %s%n", tick, sb);
}
private static String toHexByteString(int n)
{
if (n < 0) n &= 0xFF;
String s = Integer.toHexString(n).toUpperCase();
if (s.length() == 1) s = '0' + s;
return s;
}
}