author | serb |
Mon, 15 Aug 2016 20:08:55 +0300 | |
changeset 40444 | afabcfc2f3ef |
parent 25859 | 3317bb8137f4 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.media.sound; |
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import java.util.Arrays; |
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/** |
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* A standard indexed director who chooses performers |
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* by there keyfrom,keyto,velfrom,velto properties. |
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* |
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* @author Karl Helgason |
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*/ |
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public final class ModelStandardIndexedDirector implements ModelDirector { |
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private final ModelPerformer[] performers; |
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private final ModelDirectedPlayer player; |
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private boolean noteOnUsed = false; |
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private boolean noteOffUsed = false; |
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// Variables needed for index |
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private byte[][] trantables; |
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private int[] counters; |
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private int[][] mat; |
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public ModelStandardIndexedDirector(final ModelPerformer[] performers, |
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final ModelDirectedPlayer player) { |
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this.performers = Arrays.copyOf(performers, performers.length); |
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this.player = player; |
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for (final ModelPerformer p : this.performers) { |
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if (p.isReleaseTriggered()) { |
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noteOffUsed = true; |
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} else { |
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noteOnUsed = true; |
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} |
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} |
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buildindex(); |
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} |
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private int[] lookupIndex(int x, int y) { |
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if ((x >= 0) && (x < 128) && (y >= 0) && (y < 128)) { |
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int xt = trantables[0][x]; |
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int yt = trantables[1][y]; |
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if (xt != -1 && yt != -1) { |
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return mat[xt + yt * counters[0]]; |
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} |
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} |
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return null; |
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} |
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private int restrict(int value) { |
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if(value < 0) return 0; |
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if(value > 127) return 127; |
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return value; |
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} |
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private void buildindex() { |
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trantables = new byte[2][129]; |
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counters = new int[trantables.length]; |
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for (ModelPerformer performer : performers) { |
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int keyFrom = performer.getKeyFrom(); |
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int keyTo = performer.getKeyTo(); |
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int velFrom = performer.getVelFrom(); |
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int velTo = performer.getVelTo(); |
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if (keyFrom > keyTo) continue; |
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if (velFrom > velTo) continue; |
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keyFrom = restrict(keyFrom); |
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keyTo = restrict(keyTo); |
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velFrom = restrict(velFrom); |
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velTo = restrict(velTo); |
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trantables[0][keyFrom] = 1; |
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trantables[0][keyTo + 1] = 1; |
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trantables[1][velFrom] = 1; |
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trantables[1][velTo + 1] = 1; |
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} |
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for (int d = 0; d < trantables.length; d++) { |
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byte[] trantable = trantables[d]; |
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int transize = trantable.length; |
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for (int i = transize - 1; i >= 0; i--) { |
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if (trantable[i] == 1) { |
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trantable[i] = -1; |
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break; |
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} |
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trantable[i] = -1; |
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} |
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int counter = -1; |
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for (int i = 0; i < transize; i++) { |
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if (trantable[i] != 0) { |
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counter++; |
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if (trantable[i] == -1) |
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break; |
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} |
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trantable[i] = (byte) counter; |
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} |
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counters[d] = counter; |
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} |
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mat = new int[counters[0] * counters[1]][]; |
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int ix = 0; |
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for (ModelPerformer performer : performers) { |
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int keyFrom = performer.getKeyFrom(); |
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int keyTo = performer.getKeyTo(); |
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int velFrom = performer.getVelFrom(); |
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int velTo = performer.getVelTo(); |
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if (keyFrom > keyTo) continue; |
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if (velFrom > velTo) continue; |
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keyFrom = restrict(keyFrom); |
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keyTo = restrict(keyTo); |
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velFrom = restrict(velFrom); |
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velTo = restrict(velTo); |
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int x_from = trantables[0][keyFrom]; |
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int x_to = trantables[0][keyTo + 1]; |
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int y_from = trantables[1][velFrom]; |
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int y_to = trantables[1][velTo + 1]; |
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if (x_to == -1) |
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x_to = counters[0]; |
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if (y_to == -1) |
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y_to = counters[1]; |
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for (int y = y_from; y < y_to; y++) { |
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int i = x_from + y * counters[0]; |
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for (int x = x_from; x < x_to; x++) { |
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int[] mprev = mat[i]; |
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if (mprev == null) { |
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mat[i] = new int[] { ix }; |
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} else { |
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int[] mnew = new int[mprev.length + 1]; |
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mnew[mnew.length - 1] = ix; |
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for (int k = 0; k < mprev.length; k++) |
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mnew[k] = mprev[k]; |
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mat[i] = mnew; |
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} |
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i++; |
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} |
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} |
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ix++; |
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} |
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} |
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@Override |
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public void close() { |
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} |
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@Override |
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public void noteOff(int noteNumber, int velocity) { |
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if (!noteOffUsed) |
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return; |
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int[] plist = lookupIndex(noteNumber, velocity); |
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if(plist == null) return; |
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for (int i : plist) { |
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ModelPerformer p = performers[i]; |
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if (p.isReleaseTriggered()) { |
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player.play(i, null); |
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} |
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} |
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} |
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@Override |
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public void noteOn(int noteNumber, int velocity) { |
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if (!noteOnUsed) |
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return; |
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int[] plist = lookupIndex(noteNumber, velocity); |
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if(plist == null) return; |
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for (int i : plist) { |
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ModelPerformer p = performers[i]; |
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if (!p.isReleaseTriggered()) { |
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player.play(i, null); |
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} |
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} |
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} |
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} |