1 /* 2 * Copyright (c) 2004, 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.PrintStream; 25 26 import javax.sound.midi.Instrument; 27 import javax.sound.midi.MidiChannel; 28 import javax.sound.midi.MidiSystem; 29 import javax.sound.midi.MidiUnavailableException; 30 import javax.sound.midi.Soundbank; 31 import javax.sound.midi.Synthesizer; 32 33 /** 34 * @test 35 * @bug 4987585 36 * @summary Some MidiChannel methods are asynchronous 37 */ 38 public class AsynchronousMidiChannel { 39 static PrintStream log = System.err; 40 static PrintStream ref = System.out; 41 42 public static void main(String args[]) { 43 doIt(args); 44 } 45 46 public static void doIt(String args[]) { 47 Synthesizer synth = null; 48 MidiChannel mChanArr[]; 49 MidiChannel chan = null; 50 boolean failed = false; 51 int i = 0; 52 int chanNum = 0; 53 54 int val = 1; 55 int contr = 0; 56 Soundbank sBank; 57 Instrument[] insArr; 58 Instrument instr = null; 59 Object ev = new Object(); 60 61 try { 62 synth = MidiSystem.getSynthesizer(); 63 System.out.println("Got synth: "+synth); 64 synth.open(); 65 66 int latency = (int) synth.getLatency(); 67 System.out.println(" -> latency: " 68 +latency 69 +" microseconds"); 70 71 mChanArr = synth.getChannels(); 72 while ((i < mChanArr.length) && (chan == null)) { 73 chanNum = i; 74 chan = mChanArr[i++]; 75 } 76 if (chan == null) { 77 System.out.println("No channels in " 78 +"this synthesizer!"); 79 return; 80 } 81 System.out.println("Got MidiChannel: "+chan); 82 83 84 sBank = synth.getDefaultSoundbank(); 85 if (sBank == null) { 86 System.out.println("No default sound bank!"); 87 return; 88 } 89 90 91 insArr = sBank.getInstruments(); 92 for (int j = 0; j < insArr.length; j++) { 93 if (insArr[j].getPatch().getBank() == val) { 94 instr = insArr[j]; 95 synth.loadInstrument(instr); 96 } 97 } 98 if (instr == null) { 99 System.out.println("No instr. with this bank!"); 100 return; 101 } 102 103 chan.controlChange(contr, val); 104 105 // need to respect the synthesizer's latency 106 if (latency > 0) { 107 try { 108 Thread.sleep(latency/1000); 109 } catch (InterruptedException inEx) { 110 } 111 } 112 113 if (chan.getController(contr) != val) { 114 failed = true; 115 System.err.println("getController() does not " 116 +"return proper value: " 117 + chan.getController(contr)); 118 } else { 119 System.out.println("getController(" 120 + contr + ") returns proper value: " 121 + chan.getController(contr)); 122 } 123 124 } catch (MidiUnavailableException mue) { 125 System.err.println("MidiUnavailableException was " 126 +"thrown: " + mue); 127 System.out.println("could not test."); 128 return; 129 } catch(SecurityException se) { 130 se.printStackTrace(); 131 System.err.println("Sound access is not denied but " 132 + "SecurityException was thrown!"); 133 return; 134 135 } finally { 136 if (synth != null) synth.close(); 137 } 138 139 140 if (failed == true) { 141 System.out.println("test failed"); 142 } else { 143 System.out.println("OKAY"); 144 } 145 return; 146 } 147 }