480 lines
14 KiB
C#
480 lines
14 KiB
C#
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using System;
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namespace ComponentAce.Compression.Libs.zlib
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{
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internal sealed class InfTree
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{
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private const int MANY = 1440;
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private const int Z_OK = 0;
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private const int Z_STREAM_END = 1;
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private const int Z_NEED_DICT = 2;
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private const int Z_ERRNO = -1;
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private const int Z_STREAM_ERROR = -2;
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private const int Z_DATA_ERROR = -3;
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private const int Z_MEM_ERROR = -4;
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private const int Z_BUF_ERROR = -5;
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private const int Z_VERSION_ERROR = -6;
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internal const int fixed_bl = 9;
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internal const int fixed_bd = 5;
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internal static readonly int[] fixed_tl = new int[1536]
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{
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96, 7, 256, 0, 8, 80, 0, 8, 16, 84,
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8, 115, 82, 7, 31, 0, 8, 112, 0, 8,
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48, 0, 9, 192, 80, 7, 10, 0, 8, 96,
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0, 8, 32, 0, 9, 160, 0, 8, 0, 0,
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8, 128, 0, 8, 64, 0, 9, 224, 80, 7,
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6, 0, 8, 88, 0, 8, 24, 0, 9, 144,
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83, 7, 59, 0, 8, 120, 0, 8, 56, 0,
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9, 208, 81, 7, 17, 0, 8, 104, 0, 8,
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40, 0, 9, 176, 0, 8, 8, 0, 8, 136,
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0, 8, 72, 0, 9, 240, 80, 7, 4, 0,
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8, 84, 0, 8, 20, 85, 8, 227, 83, 7,
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43, 0, 8, 116, 0, 8, 52, 0, 9, 200,
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81, 7, 13, 0, 8, 100, 0, 8, 36, 0,
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9, 168, 0, 8, 4, 0, 8, 132, 0, 8,
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68, 0, 9, 232, 80, 7, 8, 0, 8, 92,
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0, 8, 28, 0, 9, 152, 84, 7, 83, 0,
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8, 124, 0, 8, 60, 0, 9, 216, 82, 7,
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23, 0, 8, 108, 0, 8, 44, 0, 9, 184,
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0, 8, 12, 0, 8, 140, 0, 8, 76, 0,
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9, 248, 80, 7, 3, 0, 8, 82, 0, 8,
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18, 85, 8, 163, 83, 7, 35, 0, 8, 114,
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0, 8, 50, 0, 9, 196, 81, 7, 11, 0,
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8, 98, 0, 8, 34, 0, 9, 164, 0, 8,
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2, 0, 8, 130, 0, 8, 66, 0, 9, 228,
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80, 7, 7, 0, 8, 90, 0, 8, 26, 0,
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9, 148, 84, 7, 67, 0, 8, 122, 0, 8,
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58, 0, 9, 212, 82, 7, 19, 0, 8, 106,
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0, 8, 42, 0, 9, 180, 0, 8, 10, 0,
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8, 138, 0, 8, 74, 0, 9, 244, 80, 7,
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5, 0, 8, 86, 0, 8, 22, 192, 8, 0,
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83, 7, 51, 0, 8, 118, 0, 8, 54, 0,
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9, 204, 81, 7, 15, 0, 8, 102, 0, 8,
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38, 0, 9, 172, 0, 8, 6, 0, 8, 134,
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0, 8, 70, 0, 9, 236, 80, 7, 9, 0,
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8, 94, 0, 8, 30, 0, 9, 156, 84, 7,
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99, 0, 8, 126, 0, 8, 62, 0, 9, 220,
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82, 7, 27, 0, 8, 110, 0, 8, 46, 0,
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9, 188, 0, 8, 14, 0, 8, 142, 0, 8,
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78, 0, 9, 252, 96, 7, 256, 0, 8, 81,
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0, 8, 17, 85, 8, 131, 82, 7, 31, 0,
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8, 113, 0, 8, 49, 0, 9, 194, 80, 7,
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10, 0, 8, 97, 0, 8, 33, 0, 9, 162,
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0, 8, 1, 0, 8, 129, 0, 8, 65, 0,
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9, 226, 80, 7, 6, 0, 8, 89, 0, 8,
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25, 0, 9, 146, 83, 7, 59, 0, 8, 121,
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0, 8, 57, 0, 9, 210, 81, 7, 17, 0,
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8, 105, 0, 8, 41, 0, 9, 178, 0, 8,
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9, 0, 8, 137, 0, 8, 73, 0, 9, 242,
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80, 7, 4, 0, 8, 85, 0, 8, 21, 80,
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8, 258, 83, 7, 43, 0, 8, 117, 0, 8,
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53, 0, 9, 202, 81, 7, 13, 0, 8, 101,
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0, 8, 37, 0, 9, 170, 0, 8, 5, 0,
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8, 133, 0, 8, 69, 0, 9, 234, 80, 7,
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8, 0, 8, 93, 0, 8, 29, 0, 9, 154,
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84, 7, 83, 0, 8, 125, 0, 8, 61, 0,
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9, 218, 82, 7, 23, 0, 8, 109, 0, 8,
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45, 0, 9, 186, 0, 8, 13, 0, 8, 141,
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0, 8, 77, 0, 9, 250, 80, 7, 3, 0,
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8, 83, 0, 8, 19, 85, 8, 195, 83, 7,
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35, 0, 8, 115, 0, 8, 51, 0, 9, 198,
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81, 7, 11, 0, 8, 99, 0, 8, 35, 0,
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9, 166, 0, 8, 3, 0, 8, 131, 0, 8,
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67, 0, 9, 230, 80, 7, 7, 0, 8, 91,
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0, 8, 27, 0, 9, 150, 84, 7, 67, 0,
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8, 123, 0, 8, 59, 0, 9, 214, 82, 7,
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19, 0, 8, 107, 0, 8, 43, 0, 9, 182,
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0, 8, 11, 0, 8, 139, 0, 8, 75, 0,
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9, 246, 80, 7, 5, 0, 8, 87, 0, 8,
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23, 192, 8, 0, 83, 7, 51, 0, 8, 119,
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0, 8, 55, 0, 9, 206, 81, 7, 15, 0,
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8, 103, 0, 8, 39, 0, 9, 174, 0, 8,
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7, 0, 8, 135, 0, 8, 71, 0, 9, 238,
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80, 7, 9, 0, 8, 95, 0, 8, 31, 0,
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9, 158, 84, 7, 99, 0, 8, 127, 0, 8,
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63, 0, 9, 222, 82, 7, 27, 0, 8, 111,
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0, 8, 47, 0, 9, 190, 0, 8, 15, 0,
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8, 143, 0, 8, 79, 0, 9, 254, 96, 7,
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256, 0, 8, 80, 0, 8, 16, 84, 8, 115,
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82, 7, 31, 0, 8, 112, 0, 8, 48, 0,
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9, 193, 80, 7, 10, 0, 8, 96, 0, 8,
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32, 0, 9, 161, 0, 8, 0, 0, 8, 128,
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0, 8, 64, 0, 9, 225, 80, 7, 6, 0,
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8, 88, 0, 8, 24, 0, 9, 145, 83, 7,
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59, 0, 8, 120, 0, 8, 56, 0, 9, 209,
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81, 7, 17, 0, 8, 104, 0, 8, 40, 0,
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9, 177, 0, 8, 8, 0, 8, 136, 0, 8,
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72, 0, 9, 241, 80, 7, 4, 0, 8, 84,
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0, 8, 20, 85, 8, 227, 83, 7, 43, 0,
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8, 116, 0, 8, 52, 0, 9, 201, 81, 7,
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13, 0, 8, 100, 0, 8, 36, 0, 9, 169,
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0, 8, 4, 0, 8, 132, 0, 8, 68, 0,
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9, 233, 80, 7, 8, 0, 8, 92, 0, 8,
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28, 0, 9, 153, 84, 7, 83, 0, 8, 124,
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0, 8, 60, 0, 9, 217, 82, 7, 23, 0,
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8, 108, 0, 8, 44, 0, 9, 185, 0, 8,
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12, 0, 8, 140, 0, 8, 76, 0, 9, 249,
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80, 7, 3, 0, 8, 82, 0, 8, 18, 85,
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8, 163, 83, 7, 35, 0, 8, 114, 0, 8,
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50, 0, 9, 197, 81, 7, 11, 0, 8, 98,
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0, 8, 34, 0, 9, 165, 0, 8, 2, 0,
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8, 130, 0, 8, 66, 0, 9, 229, 80, 7,
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7, 0, 8, 90, 0, 8, 26, 0, 9, 149,
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84, 7, 67, 0, 8, 122, 0, 8, 58, 0,
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9, 213, 82, 7, 19, 0, 8, 106, 0, 8,
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42, 0, 9, 181, 0, 8, 10, 0, 8, 138,
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0, 8, 74, 0, 9, 245, 80, 7, 5, 0,
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8, 86, 0, 8, 22, 192, 8, 0, 83, 7,
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51, 0, 8, 118, 0, 8, 54, 0, 9, 205,
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81, 7, 15, 0, 8, 102, 0, 8, 38, 0,
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9, 173, 0, 8, 6, 0, 8, 134, 0, 8,
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70, 0, 9, 237, 80, 7, 9, 0, 8, 94,
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0, 8, 30, 0, 9, 157, 84, 7, 99, 0,
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8, 126, 0, 8, 62, 0, 9, 221, 82, 7,
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27, 0, 8, 110, 0, 8, 46, 0, 9, 189,
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0, 8, 14, 0, 8, 142, 0, 8, 78, 0,
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9, 253, 96, 7, 256, 0, 8, 81, 0, 8,
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17, 85, 8, 131, 82, 7, 31, 0, 8, 113,
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0, 8, 49, 0, 9, 195, 80, 7, 10, 0,
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8, 97, 0, 8, 33, 0, 9, 163, 0, 8,
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1, 0, 8, 129, 0, 8, 65, 0, 9, 227,
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80, 7, 6, 0, 8, 89, 0, 8, 25, 0,
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9, 147, 83, 7, 59, 0, 8, 121, 0, 8,
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57, 0, 9, 211, 81, 7, 17, 0, 8, 105,
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0, 8, 41, 0, 9, 179, 0, 8, 9, 0,
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8, 137, 0, 8, 73, 0, 9, 243, 80, 7,
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4, 0, 8, 85, 0, 8, 21, 80, 8, 258,
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83, 7, 43, 0, 8, 117, 0, 8, 53, 0,
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9, 203, 81, 7, 13, 0, 8, 101, 0, 8,
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37, 0, 9, 171, 0, 8, 5, 0, 8, 133,
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0, 8, 69, 0, 9, 235, 80, 7, 8, 0,
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8, 93, 0, 8, 29, 0, 9, 155, 84, 7,
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83, 0, 8, 125, 0, 8, 61, 0, 9, 219,
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82, 7, 23, 0, 8, 109, 0, 8, 45, 0,
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9, 187, 0, 8, 13, 0, 8, 141, 0, 8,
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77, 0, 9, 251, 80, 7, 3, 0, 8, 83,
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0, 8, 19, 85, 8, 195, 83, 7, 35, 0,
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8, 115, 0, 8, 51, 0, 9, 199, 81, 7,
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11, 0, 8, 99, 0, 8, 35, 0, 9, 167,
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0, 8, 3, 0, 8, 131, 0, 8, 67, 0,
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9, 231, 80, 7, 7, 0, 8, 91, 0, 8,
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27, 0, 9, 151, 84, 7, 67, 0, 8, 123,
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0, 8, 59, 0, 9, 215, 82, 7, 19, 0,
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8, 107, 0, 8, 43, 0, 9, 183, 0, 8,
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11, 0, 8, 139, 0, 8, 75, 0, 9, 247,
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80, 7, 5, 0, 8, 87, 0, 8, 23, 192,
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8, 0, 83, 7, 51, 0, 8, 119, 0, 8,
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55, 0, 9, 207, 81, 7, 15, 0, 8, 103,
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0, 8, 39, 0, 9, 175, 0, 8, 7, 0,
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8, 135, 0, 8, 71, 0, 9, 239, 80, 7,
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9, 0, 8, 95, 0, 8, 31, 0, 9, 159,
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84, 7, 99, 0, 8, 127, 0, 8, 63, 0,
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9, 223, 82, 7, 27, 0, 8, 111, 0, 8,
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47, 0, 9, 191, 0, 8, 15, 0, 8, 143,
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0, 8, 79, 0, 9, 255
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};
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internal static readonly int[] fixed_td = new int[96]
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{
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80, 5, 1, 87, 5, 257, 83, 5, 17, 91,
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5, 4097, 81, 5, 5, 89, 5, 1025, 85, 5,
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65, 93, 5, 16385, 80, 5, 3, 88, 5, 513,
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84, 5, 33, 92, 5, 8193, 82, 5, 9, 90,
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5, 2049, 86, 5, 129, 192, 5, 24577, 80, 5,
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2, 87, 5, 385, 83, 5, 25, 91, 5, 6145,
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81, 5, 7, 89, 5, 1537, 85, 5, 97, 93,
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5, 24577, 80, 5, 4, 88, 5, 769, 84, 5,
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49, 92, 5, 12289, 82, 5, 13, 90, 5, 3073,
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86, 5, 193, 192, 5, 24577
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};
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internal static readonly int[] cplens = new int[31]
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{
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3, 4, 5, 6, 7, 8, 9, 10, 11, 13,
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15, 17, 19, 23, 27, 31, 35, 43, 51, 59,
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67, 83, 99, 115, 131, 163, 195, 227, 258, 0,
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0
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};
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internal static readonly int[] cplext = new int[31]
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{
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0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
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1, 1, 2, 2, 2, 2, 3, 3, 3, 3,
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4, 4, 4, 4, 5, 5, 5, 5, 0, 112,
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112
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};
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internal static readonly int[] cpdist = new int[30]
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{
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1, 2, 3, 4, 5, 7, 9, 13, 17, 25,
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33, 49, 65, 97, 129, 193, 257, 385, 513, 769,
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1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577
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};
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internal static readonly int[] cpdext = new int[30]
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{
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0, 0, 0, 0, 1, 1, 2, 2, 3, 3,
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4, 4, 5, 5, 6, 6, 7, 7, 8, 8,
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9, 9, 10, 10, 11, 11, 12, 12, 13, 13
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};
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internal const int BMAX = 15;
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internal static int huft_build(int[] b, int bindex, int n, int s, int[] d, int[] e, int[] t, int[] m, int[] hp, int[] hn, int[] v)
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{
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int[] array = new int[16];
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int[] array2 = new int[3];
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int[] array3 = new int[15];
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int[] array4 = new int[16];
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int num = 0;
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int num2 = n;
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do
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{
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array[b[bindex + num]]++;
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num++;
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num2--;
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}
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while (num2 != 0);
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if (array[0] == n)
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{
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t[0] = -1;
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m[0] = 0;
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return 0;
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}
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int num3 = m[0];
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int i;
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for (i = 1; i <= 15 && array[i] == 0; i++)
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{
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}
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int j = i;
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if (num3 < i)
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{
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num3 = i;
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}
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num2 = 15;
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while (num2 != 0 && array[num2] == 0)
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{
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num2--;
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}
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int num4 = num2;
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if (num3 > num2)
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{
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num3 = num2;
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}
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m[0] = num3;
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int num5 = 1 << i;
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while (i < num2)
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{
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if ((num5 -= array[i]) < 0)
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{
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return -3;
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}
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i++;
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num5 <<= 1;
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}
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if ((num5 -= array[num2]) < 0)
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{
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return -3;
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}
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array[num2] += num5;
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i = (array4[1] = 0);
|
||
|
|
num = 1;
|
||
|
|
int num6 = 2;
|
||
|
|
while (--num2 != 0)
|
||
|
|
{
|
||
|
|
i = (array4[num6] = i + array[num]);
|
||
|
|
num6++;
|
||
|
|
num++;
|
||
|
|
}
|
||
|
|
num2 = 0;
|
||
|
|
num = 0;
|
||
|
|
do
|
||
|
|
{
|
||
|
|
if ((i = b[bindex + num]) != 0)
|
||
|
|
{
|
||
|
|
v[array4[i]++] = num2;
|
||
|
|
}
|
||
|
|
num++;
|
||
|
|
}
|
||
|
|
while (++num2 < n);
|
||
|
|
n = array4[num4];
|
||
|
|
num2 = (array4[0] = 0);
|
||
|
|
num = 0;
|
||
|
|
int num7 = -1;
|
||
|
|
int num8 = -num3;
|
||
|
|
array3[0] = 0;
|
||
|
|
int num9 = 0;
|
||
|
|
int num10 = 0;
|
||
|
|
for (; j <= num4; j++)
|
||
|
|
{
|
||
|
|
int num11 = array[j];
|
||
|
|
while (num11-- != 0)
|
||
|
|
{
|
||
|
|
int num12;
|
||
|
|
while (j > num8 + num3)
|
||
|
|
{
|
||
|
|
num7++;
|
||
|
|
num8 += num3;
|
||
|
|
num10 = num4 - num8;
|
||
|
|
num10 = ((num10 > num3) ? num3 : num10);
|
||
|
|
if ((num12 = 1 << (i = j - num8)) > num11 + 1)
|
||
|
|
{
|
||
|
|
num12 -= num11 + 1;
|
||
|
|
num6 = j;
|
||
|
|
if (i < num10)
|
||
|
|
{
|
||
|
|
while (++i < num10 && (num12 <<= 1) > array[++num6])
|
||
|
|
{
|
||
|
|
num12 -= array[num6];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
num10 = 1 << i;
|
||
|
|
if (hn[0] + num10 > 1440)
|
||
|
|
{
|
||
|
|
return -3;
|
||
|
|
}
|
||
|
|
num9 = (array3[num7] = hn[0]);
|
||
|
|
hn[0] += num10;
|
||
|
|
if (num7 != 0)
|
||
|
|
{
|
||
|
|
array4[num7] = num2;
|
||
|
|
array2[0] = (byte)i;
|
||
|
|
array2[1] = (byte)num3;
|
||
|
|
i = SupportClass.URShift(num2, num8 - num3);
|
||
|
|
array2[2] = num9 - array3[num7 - 1] - i;
|
||
|
|
Array.Copy(array2, 0, hp, (array3[num7 - 1] + i) * 3, 3);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
t[0] = num9;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
array2[1] = (byte)(j - num8);
|
||
|
|
if (num >= n)
|
||
|
|
{
|
||
|
|
array2[0] = 192;
|
||
|
|
}
|
||
|
|
else if (v[num] < s)
|
||
|
|
{
|
||
|
|
array2[0] = (byte)((v[num] >= 256) ? 96 : 0);
|
||
|
|
array2[2] = v[num++];
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
array2[0] = (byte)(e[v[num] - s] + 16 + 64);
|
||
|
|
array2[2] = d[v[num++] - s];
|
||
|
|
}
|
||
|
|
num12 = 1 << j - num8;
|
||
|
|
for (i = SupportClass.URShift(num2, num8); i < num10; i += num12)
|
||
|
|
{
|
||
|
|
Array.Copy(array2, 0, hp, (num9 + i) * 3, 3);
|
||
|
|
}
|
||
|
|
i = 1 << j - 1;
|
||
|
|
while ((num2 & i) != 0)
|
||
|
|
{
|
||
|
|
num2 ^= i;
|
||
|
|
i = SupportClass.URShift(i, 1);
|
||
|
|
}
|
||
|
|
num2 ^= i;
|
||
|
|
int num13 = (1 << num8) - 1;
|
||
|
|
while ((num2 & num13) != array4[num7])
|
||
|
|
{
|
||
|
|
num7--;
|
||
|
|
num8 -= num3;
|
||
|
|
num13 = (1 << num8) - 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (num5 == 0 || num4 == 1)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
return -5;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal static int inflate_trees_bits(int[] c, int[] bb, int[] tb, int[] hp, ZStream z)
|
||
|
|
{
|
||
|
|
int[] hn = new int[1];
|
||
|
|
int[] v = new int[19];
|
||
|
|
int num = huft_build(c, 0, 19, 19, null, null, tb, bb, hp, hn, v);
|
||
|
|
if (num == -3)
|
||
|
|
{
|
||
|
|
z.msg = "oversubscribed dynamic bit lengths tree";
|
||
|
|
}
|
||
|
|
else if (num == -5 || bb[0] == 0)
|
||
|
|
{
|
||
|
|
z.msg = "incomplete dynamic bit lengths tree";
|
||
|
|
num = -3;
|
||
|
|
}
|
||
|
|
return num;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal static int inflate_trees_dynamic(int nl, int nd, int[] c, int[] bl, int[] bd, int[] tl, int[] td, int[] hp, ZStream z)
|
||
|
|
{
|
||
|
|
int[] hn = new int[1];
|
||
|
|
int[] v = new int[288];
|
||
|
|
int num = huft_build(c, 0, nl, 257, cplens, cplext, tl, bl, hp, hn, v);
|
||
|
|
if (num != 0 || bl[0] == 0)
|
||
|
|
{
|
||
|
|
switch (num)
|
||
|
|
{
|
||
|
|
case -3:
|
||
|
|
z.msg = "oversubscribed literal/length tree";
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
z.msg = "incomplete literal/length tree";
|
||
|
|
num = -3;
|
||
|
|
break;
|
||
|
|
case -4:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return num;
|
||
|
|
}
|
||
|
|
num = huft_build(c, nl, nd, 0, cpdist, cpdext, td, bd, hp, hn, v);
|
||
|
|
if (num != 0 || (bd[0] == 0 && nl > 257))
|
||
|
|
{
|
||
|
|
switch (num)
|
||
|
|
{
|
||
|
|
case -3:
|
||
|
|
z.msg = "oversubscribed distance tree";
|
||
|
|
break;
|
||
|
|
case -5:
|
||
|
|
z.msg = "incomplete distance tree";
|
||
|
|
num = -3;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
z.msg = "empty distance tree with lengths";
|
||
|
|
num = -3;
|
||
|
|
break;
|
||
|
|
case -4:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return num;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
internal static int inflate_trees_fixed(int[] bl, int[] bd, int[][] tl, int[][] td, ZStream z)
|
||
|
|
{
|
||
|
|
bl[0] = 9;
|
||
|
|
bd[0] = 5;
|
||
|
|
tl[0] = fixed_tl;
|
||
|
|
td[0] = fixed_td;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|