1 /* 2 * Copyright (c) 2007, 2013, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.media.sound; 27 28 import java.util.TreeMap; 29 30 import javax.sound.midi.MidiDevice; 31 import javax.sound.midi.MidiDeviceReceiver; 32 import javax.sound.midi.MidiMessage; 33 import javax.sound.midi.ShortMessage; 34 35 /** 36 * Software synthesizer MIDI receiver class. 37 * 38 * @author Karl Helgason 39 */ 40 public final class SoftReceiver implements MidiDeviceReceiver { 41 42 boolean open = true; 43 private final Object control_mutex; 44 private final SoftSynthesizer synth; 45 TreeMap<Long, Object> midimessages; 46 SoftMainMixer mainmixer; 47 48 public SoftReceiver(SoftSynthesizer synth) { 49 this.control_mutex = synth.control_mutex; 50 this.synth = synth; 51 this.mainmixer = synth.getMainMixer(); 52 if (mainmixer != null) 53 this.midimessages = mainmixer.midimessages; 54 } 55 56 @Override 57 public MidiDevice getMidiDevice() { 58 return synth; 59 } 60 61 @Override 62 public void send(MidiMessage message, long timeStamp) { 63 64 synchronized (control_mutex) { 65 if (!open) 66 throw new IllegalStateException("Receiver is not open"); 67 } 68 69 if (timeStamp != -1) { 70 synchronized (control_mutex) { 71 mainmixer.activity(); 72 while (midimessages.get(timeStamp) != null) 73 timeStamp++; 74 if (message instanceof ShortMessage 75 && (((ShortMessage)message).getChannel() > 0xF)) { 76 midimessages.put(timeStamp, message.clone()); 77 } else { 78 midimessages.put(timeStamp, message.getMessage()); 79 } 80 } 81 } else { 82 mainmixer.processMessage(message); 83 } 84 } 85 86 @Override 87 public void close() { 88 synchronized (control_mutex) { 89 open = false; 90 } 91 synth.removeReceiver(this); 92 } 93 }