| /* |
| * Copyright (c) 2010, 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; |
| |
| /** |
| * A standard indexed director who chooses performers |
| * by there keyfrom,keyto,velfrom,velto properties. |
| * |
| * @author Karl Helgason |
| */ |
| public final class ModelStandardIndexedDirector implements ModelDirector { |
| |
| ModelPerformer[] performers; |
| ModelDirectedPlayer player; |
| boolean noteOnUsed = false; |
| boolean noteOffUsed = false; |
| |
| // Variables needed for index |
| byte[][] trantables; |
| int[] counters; |
| int[][] mat; |
| |
| public ModelStandardIndexedDirector(ModelPerformer[] performers, |
| ModelDirectedPlayer player) { |
| this.performers = performers; |
| this.player = player; |
| for (int i = 0; i < performers.length; i++) { |
| ModelPerformer p = performers[i]; |
| if (p.isReleaseTriggered()) { |
| noteOffUsed = true; |
| } else { |
| noteOnUsed = true; |
| } |
| } |
| buildindex(); |
| } |
| |
| private int[] lookupIndex(int x, int y) { |
| if ((x >= 0) && (x < 128) && (y >= 0) && (y < 128)) { |
| int xt = trantables[0][x]; |
| int yt = trantables[1][y]; |
| if (xt != -1 && yt != -1) { |
| return mat[xt + yt * counters[0]]; |
| } |
| } |
| return null; |
| } |
| |
| private int restrict(int value) { |
| if(value < 0) return 0; |
| if(value > 127) return 127; |
| return value; |
| } |
| |
| private void buildindex() { |
| trantables = new byte[2][129]; |
| counters = new int[trantables.length]; |
| for (ModelPerformer performer : performers) { |
| int keyFrom = performer.getKeyFrom(); |
| int keyTo = performer.getKeyTo(); |
| int velFrom = performer.getVelFrom(); |
| int velTo = performer.getVelTo(); |
| if (keyFrom > keyTo) continue; |
| if (velFrom > velTo) continue; |
| keyFrom = restrict(keyFrom); |
| keyTo = restrict(keyTo); |
| velFrom = restrict(velFrom); |
| velTo = restrict(velTo); |
| trantables[0][keyFrom] = 1; |
| trantables[0][keyTo + 1] = 1; |
| trantables[1][velFrom] = 1; |
| trantables[1][velTo + 1] = 1; |
| } |
| for (int d = 0; d < trantables.length; d++) { |
| byte[] trantable = trantables[d]; |
| int transize = trantable.length; |
| for (int i = transize - 1; i >= 0; i--) { |
| if (trantable[i] == 1) { |
| trantable[i] = -1; |
| break; |
| } |
| trantable[i] = -1; |
| } |
| int counter = -1; |
| for (int i = 0; i < transize; i++) { |
| if (trantable[i] != 0) { |
| counter++; |
| if (trantable[i] == -1) |
| break; |
| } |
| trantable[i] = (byte) counter; |
| } |
| counters[d] = counter; |
| } |
| mat = new int[counters[0] * counters[1]][]; |
| int ix = 0; |
| for (ModelPerformer performer : performers) { |
| int keyFrom = performer.getKeyFrom(); |
| int keyTo = performer.getKeyTo(); |
| int velFrom = performer.getVelFrom(); |
| int velTo = performer.getVelTo(); |
| if (keyFrom > keyTo) continue; |
| if (velFrom > velTo) continue; |
| keyFrom = restrict(keyFrom); |
| keyTo = restrict(keyTo); |
| velFrom = restrict(velFrom); |
| velTo = restrict(velTo); |
| int x_from = trantables[0][keyFrom]; |
| int x_to = trantables[0][keyTo + 1]; |
| int y_from = trantables[1][velFrom]; |
| int y_to = trantables[1][velTo + 1]; |
| if (x_to == -1) |
| x_to = counters[0]; |
| if (y_to == -1) |
| y_to = counters[1]; |
| for (int y = y_from; y < y_to; y++) { |
| int i = x_from + y * counters[0]; |
| for (int x = x_from; x < x_to; x++) { |
| int[] mprev = mat[i]; |
| if (mprev == null) { |
| mat[i] = new int[] { ix }; |
| } else { |
| int[] mnew = new int[mprev.length + 1]; |
| mnew[mnew.length - 1] = ix; |
| for (int k = 0; k < mprev.length; k++) |
| mnew[k] = mprev[k]; |
| mat[i] = mnew; |
| } |
| i++; |
| } |
| } |
| ix++; |
| } |
| } |
| |
| public void close() { |
| } |
| |
| public void noteOff(int noteNumber, int velocity) { |
| if (!noteOffUsed) |
| return; |
| int[] plist = lookupIndex(noteNumber, velocity); |
| if(plist == null) return; |
| for (int i : plist) { |
| ModelPerformer p = performers[i]; |
| if (p.isReleaseTriggered()) { |
| player.play(i, null); |
| } |
| } |
| } |
| |
| public void noteOn(int noteNumber, int velocity) { |
| if (!noteOnUsed) |
| return; |
| int[] plist = lookupIndex(noteNumber, velocity); |
| if(plist == null) return; |
| for (int i : plist) { |
| ModelPerformer p = performers[i]; |
| if (!p.isReleaseTriggered()) { |
| player.play(i, null); |
| } |
| } |
| } |
| } |