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.Arrays; 29 30 /** 31 * Connection blocks are used to connect source variable 32 * to a destination variable. 33 * For example Note On velocity can be connected to output gain. 34 * In DLS this is called articulator and in SoundFonts (SF2) a modulator. 35 * 36 * @author Karl Helgason 37 */ 38 public final class ModelConnectionBlock { 39 40 // 41 // source1 * source2 * scale -> destination 42 // 43 private static final ModelSource[] no_sources = new ModelSource[0]; 44 private ModelSource[] sources = no_sources; 45 private double scale = 1; 46 private ModelDestination destination; 47 48 public ModelConnectionBlock() { 49 } 50 51 public ModelConnectionBlock(double scale, ModelDestination destination) { 52 this.scale = scale; 53 this.destination = destination; 54 } 55 56 public ModelConnectionBlock(ModelSource source, 57 ModelDestination destination) { 58 if (source != null) { 59 this.sources = new ModelSource[1]; 60 this.sources[0] = source; 61 } 62 this.destination = destination; 63 } 64 65 public ModelConnectionBlock(ModelSource source, double scale, 66 ModelDestination destination) { 67 if (source != null) { 68 this.sources = new ModelSource[1]; 69 this.sources[0] = source; 70 } 71 this.scale = scale; 72 this.destination = destination; 73 } 74 75 public ModelConnectionBlock(ModelSource source, ModelSource control, 76 ModelDestination destination) { 77 if (source != null) { 78 if (control == null) { 79 this.sources = new ModelSource[1]; 80 this.sources[0] = source; 81 } else { 82 this.sources = new ModelSource[2]; 83 this.sources[0] = source; 84 this.sources[1] = control; 85 } 86 } 87 this.destination = destination; 88 } 89 90 public ModelConnectionBlock(ModelSource source, ModelSource control, 91 double scale, ModelDestination destination) { 92 if (source != null) { 93 if (control == null) { 94 this.sources = new ModelSource[1]; 95 this.sources[0] = source; 96 } else { 97 this.sources = new ModelSource[2]; 98 this.sources[0] = source; 99 this.sources[1] = control; 100 } 101 } 102 this.scale = scale; 103 this.destination = destination; 104 } 105 106 public ModelDestination getDestination() { 107 return destination; 108 } 109 110 public void setDestination(ModelDestination destination) { 111 this.destination = destination; 112 } 113 114 public double getScale() { 115 return scale; 116 } 117 118 public void setScale(double scale) { 119 this.scale = scale; 120 } 121 122 public ModelSource[] getSources() { 123 return Arrays.copyOf(sources, sources.length); 124 } 125 126 public void setSources(ModelSource[] source) { 127 this.sources = source == null ? no_sources : Arrays.copyOf(source, source.length); 128 } 129 130 public void addSource(ModelSource source) { 131 ModelSource[] oldsources = sources; 132 sources = new ModelSource[oldsources.length + 1]; 133 System.arraycopy(oldsources, 0, sources, 0, oldsources.length); 134 sources[sources.length - 1] = source; 135 } 136 }