148 lines
4.7 KiB
Java
148 lines
4.7 KiB
Java
/*
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* Copyright (c) 2004, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.PrintStream;
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import javax.sound.midi.Instrument;
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import javax.sound.midi.MidiChannel;
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import javax.sound.midi.MidiSystem;
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import javax.sound.midi.MidiUnavailableException;
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import javax.sound.midi.Soundbank;
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import javax.sound.midi.Synthesizer;
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/**
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* @test
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* @bug 4987585
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* @summary Some MidiChannel methods are asynchronous
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*/
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public class AsynchronousMidiChannel {
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static PrintStream log = System.err;
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static PrintStream ref = System.out;
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public static void main(String args[]) {
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doIt(args);
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}
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public static void doIt(String args[]) {
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Synthesizer synth = null;
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MidiChannel mChanArr[];
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MidiChannel chan = null;
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boolean failed = false;
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int i = 0;
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int chanNum = 0;
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int val = 1;
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int contr = 0;
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Soundbank sBank;
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Instrument[] insArr;
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Instrument instr = null;
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Object ev = new Object();
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try {
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synth = MidiSystem.getSynthesizer();
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System.out.println("Got synth: "+synth);
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synth.open();
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int latency = (int) synth.getLatency();
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System.out.println(" -> latency: "
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+latency
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+" microseconds");
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mChanArr = synth.getChannels();
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while ((i < mChanArr.length) && (chan == null)) {
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chanNum = i;
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chan = mChanArr[i++];
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}
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if (chan == null) {
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System.out.println("No channels in "
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+"this synthesizer!");
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return;
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}
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System.out.println("Got MidiChannel: "+chan);
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sBank = synth.getDefaultSoundbank();
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if (sBank == null) {
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System.out.println("No default sound bank!");
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return;
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}
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insArr = sBank.getInstruments();
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for (int j = 0; j < insArr.length; j++) {
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if (insArr[j].getPatch().getBank() == val) {
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instr = insArr[j];
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synth.loadInstrument(instr);
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}
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}
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if (instr == null) {
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System.out.println("No instr. with this bank!");
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return;
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}
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chan.controlChange(contr, val);
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// need to respect the synthesizer's latency
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if (latency > 0) {
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try {
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Thread.sleep(latency/1000);
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} catch (InterruptedException inEx) {
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}
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}
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if (chan.getController(contr) != val) {
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failed = true;
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System.err.println("getController() does not "
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+"return proper value: "
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+ chan.getController(contr));
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} else {
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System.out.println("getController("
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+ contr + ") returns proper value: "
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+ chan.getController(contr));
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}
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} catch (MidiUnavailableException mue) {
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System.err.println("MidiUnavailableException was "
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+"thrown: " + mue);
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System.out.println("could not test.");
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return;
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} catch(SecurityException se) {
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se.printStackTrace();
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System.err.println("Sound access is not denied but "
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+ "SecurityException was thrown!");
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return;
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} finally {
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if (synth != null) synth.close();
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}
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if (failed == true) {
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System.out.println("test failed");
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} else {
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System.out.println("OKAY");
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}
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return;
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}
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}
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