| /* |
| * Copyright (c) 2007, 2013, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| package com.sun.media.sound; |
| |
| import javax.sound.midi.Instrument; |
| import javax.sound.midi.MidiChannel; |
| import javax.sound.midi.Patch; |
| import javax.sound.midi.Soundbank; |
| import javax.sound.sampled.AudioFormat; |
| |
| /** |
| * The model instrument class. |
| * |
| * <p>The main methods to override are:<br> |
| * getPerformer, getDirector, getChannelMixer. |
| * |
| * <p>Performers are used to define what voices which will |
| * playback when using the instrument.<br> |
| * |
| * ChannelMixer is used to add channel-wide processing |
| * on voices output or to define non-voice oriented instruments.<br> |
| * |
| * Director is used to change how the synthesizer |
| * chooses what performers to play on midi events. |
| * |
| * @author Karl Helgason |
| */ |
| public abstract class ModelInstrument extends Instrument { |
| |
| protected ModelInstrument(Soundbank soundbank, Patch patch, String name, |
| Class<?> dataClass) { |
| super(soundbank, patch, name, dataClass); |
| } |
| |
| public ModelDirector getDirector(ModelPerformer[] performers, |
| MidiChannel channel, ModelDirectedPlayer player) { |
| return new ModelStandardIndexedDirector(performers, player); |
| } |
| |
| public ModelPerformer[] getPerformers() { |
| return new ModelPerformer[0]; |
| } |
| |
| public ModelChannelMixer getChannelMixer(MidiChannel channel, |
| AudioFormat format) { |
| return null; |
| } |
| |
| // Get General MIDI 2 Alias patch for this instrument. |
| public final Patch getPatchAlias() { |
| Patch patch = getPatch(); |
| int program = patch.getProgram(); |
| int bank = patch.getBank(); |
| if (bank != 0) |
| return patch; |
| boolean percussion = false; |
| if (getPatch() instanceof ModelPatch) |
| percussion = ((ModelPatch)getPatch()).isPercussion(); |
| if (percussion) |
| return new Patch(0x78 << 7, program); |
| else |
| return new Patch(0x79 << 7, program); |
| } |
| |
| // Return name of all the keys. |
| // This information is generated from ModelPerformer.getName() |
| // returned from getPerformers(). |
| public final String[] getKeys() { |
| String[] keys = new String[128]; |
| for (ModelPerformer performer : getPerformers()) { |
| for (int k = performer.getKeyFrom(); k <= performer.getKeyTo(); k++) { |
| if (k >= 0 && k < 128 && keys[k] == null) { |
| String name = performer.getName(); |
| if (name == null) |
| name = "untitled"; |
| keys[k] = name; |
| } |
| } |
| } |
| return keys; |
| } |
| |
| // Return what channels this instrument will probably response |
| // on General MIDI synthesizer. |
| public final boolean[] getChannels() { |
| boolean percussion = false; |
| if (getPatch() instanceof ModelPatch) |
| percussion = ((ModelPatch)getPatch()).isPercussion(); |
| |
| // Check if instrument is percussion. |
| if (percussion) { |
| boolean[] ch = new boolean[16]; |
| for (int i = 0; i < ch.length; i++) |
| ch[i] = false; |
| ch[9] = true; |
| return ch; |
| } |
| |
| // Check if instrument uses General MIDI 2 default banks. |
| int bank = getPatch().getBank(); |
| if (bank >> 7 == 0x78 || bank >> 7 == 0x79) { |
| boolean[] ch = new boolean[16]; |
| for (int i = 0; i < ch.length; i++) |
| ch[i] = true; |
| return ch; |
| } |
| |
| boolean[] ch = new boolean[16]; |
| for (int i = 0; i < ch.length; i++) |
| ch[i] = true; |
| ch[9] = false; |
| return ch; |
| } |
| } |