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/*
* Copyright (c) 2004, 2016, 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 java.io.PrintStream;
import javax.sound.midi.Instrument;
import javax.sound.midi.MidiChannel;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.MidiUnavailableException;
import javax.sound.midi.Soundbank;
import javax.sound.midi.Synthesizer;
/**
* @test
* @bug 4987585
* @summary Some MidiChannel methods are asynchronous
*/
public class AsynchronousMidiChannel {
static PrintStream log = System.err;
static PrintStream ref = System.out;
public static void main(String args[]) {
doIt(args);
}
public static void doIt(String args[]) {
Synthesizer synth = null;
MidiChannel mChanArr[];
MidiChannel chan = null;
boolean failed = false;
int i = 0;
int chanNum = 0;
int val = 1;
int contr = 0;
Soundbank sBank;
Instrument[] insArr;
Instrument instr = null;
Object ev = new Object();
try {
synth = MidiSystem.getSynthesizer();
System.out.println("Got synth: "+synth);
synth.open();
int latency = (int) synth.getLatency();
System.out.println(" -> latency: "
+latency
+" microseconds");
mChanArr = synth.getChannels();
while ((i < mChanArr.length) && (chan == null)) {
chanNum = i;
chan = mChanArr[i++];
}
if (chan == null) {
System.out.println("No channels in "
+"this synthesizer!");
return;
}
System.out.println("Got MidiChannel: "+chan);
sBank = synth.getDefaultSoundbank();
if (sBank == null) {
System.out.println("No default sound bank!");
return;
}
insArr = sBank.getInstruments();
for (int j = 0; j < insArr.length; j++) {
if (insArr[j].getPatch().getBank() == val) {
instr = insArr[j];
synth.loadInstrument(instr);
}
}
if (instr == null) {
System.out.println("No instr. with this bank!");
return;
}
chan.controlChange(contr, val);
// need to respect the synthesizer's latency
if (latency > 0) {
try {
Thread.sleep(latency/1000);
} catch (InterruptedException inEx) {
}
}
if (chan.getController(contr) != val) {
failed = true;
System.err.println("getController() does not "
+"return proper value: "
+ chan.getController(contr));
} else {
System.out.println("getController("
+ contr + ") returns proper value: "
+ chan.getController(contr));
}
} catch (MidiUnavailableException mue) {
System.err.println("MidiUnavailableException was "
+"thrown: " + mue);
System.out.println("could not test.");
return;
} catch(SecurityException se) {
se.printStackTrace();
System.err.println("Sound access is not denied but "
+ "SecurityException was thrown!");
return;
} finally {
if (synth != null) synth.close();
}
if (failed == true) {
System.out.println("test failed");
} else {
System.out.println("OKAY");
}
return;
}
}
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