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25 package com.sun.media.sound;
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33 public class ModelStandardIndexedDirector implements ModelDirector {
34
35 ModelPerformer[] performers;
36 ModelDirectedPlayer player;
37 boolean noteOnUsed = false;
38 boolean noteOffUsed = false;
39
40
41 byte[][] trantables;
42 int[] counters;
43 int[][] mat;
44
45 public ModelStandardIndexedDirector(ModelPerformer[] performers,
46 ModelDirectedPlayer player) {
47 this.performers = performers;
48 this.player = player;
49 for (int i = 0; i < performers.length; i++) {
50 ModelPerformer p = performers[i];
51 if (p.isReleaseTriggered()) {
52 noteOffUsed = true;
53 } else {
54 noteOnUsed = true;
55 }
56 }
57 buildindex();
58 }
59
60 private int[] lookupIndex(int x, int y) {
61 if ((x >= 0) && (x < 128) && (y >= 0) && (y < 128)) {
62 int xt = trantables[0][x];
63 int yt = trantables[1][y];
64 if (xt != -1 && yt != -1) {
65 return mat[xt + yt * counters[0]];
66 }
67 }
68 return null;
69 }
70
71 private int restrict(int value) {
72 if(value < 0) return 0;
73 if(value > 127) return 127;
74 return value;
75 }
76
77 private void buildindex() {
78 trantables = new byte[2][129];
79 counters = new int[trantables.length];
80 for (ModelPerformer performer : performers) {
81 int keyFrom = performer.getKeyFrom();
82 int keyTo = performer.getKeyTo();
83 int velFrom = performer.getVelFrom();
84 int velTo = performer.getVelTo();
85 if (keyFrom > keyTo) continue;
86 if (velFrom > velTo) continue;
87 keyFrom = restrict(keyFrom);
88 keyTo = restrict(keyTo);
89 velFrom = restrict(velFrom);
90 velTo = restrict(velTo);
91 trantables[0][keyFrom] = 1;
92 trantables[0][keyTo + 1] = 1;
93 trantables[1][velFrom] = 1;
94 trantables[1][velTo + 1] = 1;
95 }
96 for (int d = 0; d < trantables.length; d++) {
97 byte[] trantable = trantables[d];
98 int transize = trantable.length;
99 for (int i = transize - 1; i >= 0; i--) {
100 if (trantable[i] == 1) {
101 trantable[i] = -1;
102 break;
103 }
104 trantable[i] = -1;
105 }
106 int counter = -1;
107 for (int i = 0; i < transize; i++) {
108 if (trantable[i] != 0) {
109 counter++;
110 if (trantable[i] == -1)
111 break;
112 }
113 trantable[i] = (byte) counter;
114 }
115 counters[d] = counter;
116 }
117 mat = new int[counters[0] * counters[1]][];
118 int ix = 0;
119 for (ModelPerformer performer : performers) {
120 int keyFrom = performer.getKeyFrom();
121 int keyTo = performer.getKeyTo();
122 int velFrom = performer.getVelFrom();
123 int velTo = performer.getVelTo();
124 if (keyFrom > keyTo) continue;
125 if (velFrom > velTo) continue;
126 keyFrom = restrict(keyFrom);
127 keyTo = restrict(keyTo);
128 velFrom = restrict(velFrom);
129 velTo = restrict(velTo);
130 int x_from = trantables[0][keyFrom];
131 int x_to = trantables[0][keyTo + 1];
132 int y_from = trantables[1][velFrom];
133 int y_to = trantables[1][velTo + 1];
134 if (x_to == -1)
135 x_to = counters[0];
136 if (y_to == -1)
137 y_to = counters[1];
138 for (int y = y_from; y < y_to; y++) {
139 int i = x_from + y * counters[0];
140 for (int x = x_from; x < x_to; x++) {
141 int[] mprev = mat[i];
142 if (mprev == null) {
143 mat[i] = new int[] { ix };
144 } else {
145 int[] mnew = new int[mprev.length + 1];
146 mnew[mnew.length - 1] = ix;
147 for (int k = 0; k < mprev.length; k++)
148 mnew[k] = mprev[k];
149 mat[i] = mnew;
150 }
151 i++;
152 }
153 }
154 ix++;
155 }
156 }
157
158 public void close() {
159 }
160
161 public void noteOff(int noteNumber, int velocity) {
162 if (!noteOffUsed)
163 return;
164 int[] plist = lookupIndex(noteNumber, velocity);
165 if(plist == null) return;
166 for (int i : plist) {
167 ModelPerformer p = performers[i];
168 if (p.isReleaseTriggered()) {
169 player.play(i, null);
170 }
171 }
172 }
173
174 public void noteOn(int noteNumber, int velocity) {
175 if (!noteOnUsed)
176 return;
177 int[] plist = lookupIndex(noteNumber, velocity);
178 if(plist == null) return;
179 for (int i : plist) {
180 ModelPerformer p = performers[i];
181 if (!p.isReleaseTriggered()) {
182 player.play(i, null);
183 }
184 }
185 }
186 }