Mercurial > 510Connectbot
annotate src/com/jcraft/jzlib/StaticTree.java @ 416:07c1da90deab
avoid null pointer
author | Carl Byington <carl@five-ten-sg.com> |
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date | Mon, 27 Oct 2014 13:58:42 -0700 |
parents | 46c2115ae1c8 |
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rev | line source |
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0 | 1 /* -*-mode:java; c-basic-offset:2; -*- */ |
2 /* | |
3 Copyright (c) 2000,2001,2002,2003 ymnk, JCraft,Inc. All rights reserved. | |
4 | |
5 Redistribution and use in source and binary forms, with or without | |
6 modification, are permitted provided that the following conditions are met: | |
7 | |
8 1. Redistributions of source code must retain the above copyright notice, | |
9 this list of conditions and the following disclaimer. | |
10 | |
357
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11 2. Redistributions in binary form must reproduce the above copyright |
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12 notice, this list of conditions and the following disclaimer in |
0 | 13 the documentation and/or other materials provided with the distribution. |
14 | |
15 3. The names of the authors may not be used to endorse or promote products | |
16 derived from this software without specific prior written permission. | |
17 | |
18 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, | |
19 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
20 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT, | |
21 INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, | |
22 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
23 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | |
24 OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
25 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
26 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
27 EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
28 */ | |
29 /* | |
30 * This program is based on zlib-1.1.3, so all credit should go authors | |
31 * Jean-loup Gailly(jloup@gzip.org) and Mark Adler(madler@alumni.caltech.edu) | |
32 * and contributors of zlib. | |
33 */ | |
34 | |
35 package com.jcraft.jzlib; | |
36 | |
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37 final class StaticTree{ |
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38 static final private int MAX_BITS=15; |
0 | 39 |
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40 static final private int BL_CODES=19; |
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41 static final private int D_CODES=30; |
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42 static final private int LITERALS=256; |
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43 static final private int LENGTH_CODES=29; |
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44 static final private int L_CODES=(LITERALS+1+LENGTH_CODES); |
0 | 45 |
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46 // Bit length codes must not exceed MAX_BL_BITS bits |
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47 static final int MAX_BL_BITS=7; |
0 | 48 |
357
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49 static final short[] static_ltree = { |
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50 12, 8, 140, 8, 76, 8, 204, 8, 44, 8, |
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51 172, 8, 108, 8, 236, 8, 28, 8, 156, 8, |
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52 92, 8, 220, 8, 60, 8, 188, 8, 124, 8, |
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53 252, 8, 2, 8, 130, 8, 66, 8, 194, 8, |
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54 34, 8, 162, 8, 98, 8, 226, 8, 18, 8, |
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55 146, 8, 82, 8, 210, 8, 50, 8, 178, 8, |
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56 114, 8, 242, 8, 10, 8, 138, 8, 74, 8, |
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57 202, 8, 42, 8, 170, 8, 106, 8, 234, 8, |
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58 26, 8, 154, 8, 90, 8, 218, 8, 58, 8, |
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59 186, 8, 122, 8, 250, 8, 6, 8, 134, 8, |
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60 70, 8, 198, 8, 38, 8, 166, 8, 102, 8, |
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61 230, 8, 22, 8, 150, 8, 86, 8, 214, 8, |
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62 54, 8, 182, 8, 118, 8, 246, 8, 14, 8, |
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63 142, 8, 78, 8, 206, 8, 46, 8, 174, 8, |
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64 110, 8, 238, 8, 30, 8, 158, 8, 94, 8, |
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65 222, 8, 62, 8, 190, 8, 126, 8, 254, 8, |
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66 1, 8, 129, 8, 65, 8, 193, 8, 33, 8, |
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67 161, 8, 97, 8, 225, 8, 17, 8, 145, 8, |
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68 81, 8, 209, 8, 49, 8, 177, 8, 113, 8, |
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69 241, 8, 9, 8, 137, 8, 73, 8, 201, 8, |
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70 41, 8, 169, 8, 105, 8, 233, 8, 25, 8, |
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71 153, 8, 89, 8, 217, 8, 57, 8, 185, 8, |
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72 121, 8, 249, 8, 5, 8, 133, 8, 69, 8, |
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73 197, 8, 37, 8, 165, 8, 101, 8, 229, 8, |
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74 21, 8, 149, 8, 85, 8, 213, 8, 53, 8, |
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75 181, 8, 117, 8, 245, 8, 13, 8, 141, 8, |
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76 77, 8, 205, 8, 45, 8, 173, 8, 109, 8, |
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77 237, 8, 29, 8, 157, 8, 93, 8, 221, 8, |
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78 61, 8, 189, 8, 125, 8, 253, 8, 19, 9, |
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79 275, 9, 147, 9, 403, 9, 83, 9, 339, 9, |
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80 211, 9, 467, 9, 51, 9, 307, 9, 179, 9, |
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81 435, 9, 115, 9, 371, 9, 243, 9, 499, 9, |
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82 11, 9, 267, 9, 139, 9, 395, 9, 75, 9, |
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83 331, 9, 203, 9, 459, 9, 43, 9, 299, 9, |
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84 171, 9, 427, 9, 107, 9, 363, 9, 235, 9, |
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85 491, 9, 27, 9, 283, 9, 155, 9, 411, 9, |
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86 91, 9, 347, 9, 219, 9, 475, 9, 59, 9, |
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87 315, 9, 187, 9, 443, 9, 123, 9, 379, 9, |
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88 251, 9, 507, 9, 7, 9, 263, 9, 135, 9, |
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89 391, 9, 71, 9, 327, 9, 199, 9, 455, 9, |
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90 39, 9, 295, 9, 167, 9, 423, 9, 103, 9, |
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91 359, 9, 231, 9, 487, 9, 23, 9, 279, 9, |
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92 151, 9, 407, 9, 87, 9, 343, 9, 215, 9, |
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93 471, 9, 55, 9, 311, 9, 183, 9, 439, 9, |
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94 119, 9, 375, 9, 247, 9, 503, 9, 15, 9, |
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95 271, 9, 143, 9, 399, 9, 79, 9, 335, 9, |
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96 207, 9, 463, 9, 47, 9, 303, 9, 175, 9, |
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97 431, 9, 111, 9, 367, 9, 239, 9, 495, 9, |
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98 31, 9, 287, 9, 159, 9, 415, 9, 95, 9, |
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99 351, 9, 223, 9, 479, 9, 63, 9, 319, 9, |
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100 191, 9, 447, 9, 127, 9, 383, 9, 255, 9, |
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101 511, 9, 0, 7, 64, 7, 32, 7, 96, 7, |
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102 16, 7, 80, 7, 48, 7, 112, 7, 8, 7, |
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103 72, 7, 40, 7, 104, 7, 24, 7, 88, 7, |
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104 56, 7, 120, 7, 4, 7, 68, 7, 36, 7, |
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105 100, 7, 20, 7, 84, 7, 52, 7, 116, 7, |
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106 3, 8, 131, 8, 67, 8, 195, 8, 35, 8, |
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107 163, 8, 99, 8, 227, 8 |
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108 }; |
0 | 109 |
357
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110 static final short[] static_dtree = { |
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111 0, 5, 16, 5, 8, 5, 24, 5, 4, 5, |
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112 20, 5, 12, 5, 28, 5, 2, 5, 18, 5, |
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113 10, 5, 26, 5, 6, 5, 22, 5, 14, 5, |
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114 30, 5, 1, 5, 17, 5, 9, 5, 25, 5, |
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115 5, 5, 21, 5, 13, 5, 29, 5, 3, 5, |
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116 19, 5, 11, 5, 27, 5, 7, 5, 23, 5 |
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117 }; |
0 | 118 |
357
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119 static StaticTree static_l_desc = |
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120 new StaticTree(static_ltree, Tree.extra_lbits, |
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121 LITERALS+1, L_CODES, MAX_BITS); |
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123 static StaticTree static_d_desc = |
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124 new StaticTree(static_dtree, Tree.extra_dbits, |
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125 0, D_CODES, MAX_BITS); |
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127 static StaticTree static_bl_desc = |
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128 new StaticTree(null, Tree.extra_blbits, |
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129 0, BL_CODES, MAX_BL_BITS); |
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131 short[] static_tree; // static tree or null |
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132 int[] extra_bits; // extra bits for each code or null |
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133 int extra_base; // base index for extra_bits |
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134 int elems; // max number of elements in the tree |
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135 int max_length; // max bit length for the codes |
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137 private StaticTree(short[] static_tree, |
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138 int[] extra_bits, |
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139 int extra_base, |
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140 int elems, |
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141 int max_length){ |
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142 this.static_tree=static_tree; |
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143 this.extra_bits=extra_bits; |
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144 this.extra_base=extra_base; |
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145 this.elems=elems; |
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146 this.max_length=max_length; |
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147 } |
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