[3745] | 1 | /**************************************************************************
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| 2 | *
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| 3 | * bitio_mems.c -- Functions for bitio to memory (random access)
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| 4 | * Copyright (C) 1994 Neil Sharman
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| 5 | *
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| 6 | * This program is free software; you can redistribute it and/or modify
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| 7 | * it under the terms of the GNU General Public License as published by
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| 8 | * the Free Software Foundation; either version 2 of the License, or
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| 9 | * (at your option) any later version.
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| 10 | *
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| 11 | * This program is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | * GNU General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU General Public License
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| 17 | * along with this program; if not, write to the Free Software
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| 18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 19 | *
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| 20 | **************************************************************************/
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| 21 |
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| 22 | #include "sysfuncs.h"
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| 23 |
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| 24 | #include "bitio_m_mems.h"
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| 25 | #include "bitio_m.h"
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| 26 |
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| 27 | int fprintf (FILE *, const char *,...);
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| 28 |
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| 29 |
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| 30 |
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| 31 | void
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[25147] | 32 | BIO_Mems_Encode_Start (unsigned char *buf, mg_u_long pos,
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[3745] | 33 | mems_bitio_state * bs)
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| 34 | {
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| 35 | ENCODE_START (buf, pos)
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| 36 | ENCODE_PAUSE (*bs)
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| 37 | }
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| 38 |
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| 39 | void
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| 40 | BIO_Mems_Encode_Done (mems_bitio_state * bs)
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| 41 | {
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| 42 | ENCODE_CONTINUE (*bs)
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| 43 | ENCODE_DONE
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| 44 | }
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| 45 |
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| 46 |
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| 47 | void
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[25147] | 48 | BIO_Mems_Decode_Start (unsigned char *buf, mg_u_long pos,
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[3745] | 49 | mems_bitio_state * bs)
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| 50 | {
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| 51 | DECODE_START (buf, pos)
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| 52 | DECODE_PAUSE (*bs)
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| 53 | }
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| 54 |
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| 55 |
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| 56 |
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| 57 |
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| 58 | void
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[25147] | 59 | BIO_Mems_Unary_Encode (mg_u_long val, mems_bitio_state * bs,
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| 60 | mg_u_long *bits)
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[3745] | 61 | {
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| 62 | ENCODE_CONTINUE (*bs)
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| 63 | if (bits)
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| 64 | UNARY_ENCODE_L (val, *bits);
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| 65 | else
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| 66 | UNARY_ENCODE (val);
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| 67 | ENCODE_PAUSE (*bs)
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| 68 | }
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| 69 |
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| 70 |
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[25147] | 71 | mg_u_long
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[3745] | 72 | BIO_Mems_Unary_Decode (mems_bitio_state * bs,
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[25147] | 73 | mg_u_long *bits)
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[3745] | 74 | {
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[25147] | 75 | register mg_u_long val;
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[3745] | 76 | DECODE_CONTINUE (*bs)
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| 77 | if (bits)
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| 78 | UNARY_DECODE_L (val, *bits);
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| 79 | else
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| 80 | UNARY_DECODE (val);
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| 81 | DECODE_PAUSE (*bs)
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| 82 | return (val);
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| 83 | }
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| 84 |
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| 85 |
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| 86 |
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| 87 |
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| 88 |
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| 89 |
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| 90 |
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| 91 | void
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[25147] | 92 | BIO_Mems_Binary_Encode (mg_u_long val, mg_u_long b,
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| 93 | mems_bitio_state * bs, mg_u_long *bits)
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[3745] | 94 | {
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| 95 | ENCODE_CONTINUE (*bs)
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| 96 | if (bits)
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| 97 | BINARY_ENCODE_L (val, b, *bits);
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| 98 | else
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| 99 | BINARY_ENCODE (val, b);
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| 100 | ENCODE_PAUSE (*bs)
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| 101 | }
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| 102 |
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| 103 |
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[25147] | 104 | mg_u_long
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| 105 | BIO_Mems_Binary_Decode (mg_u_long b, mems_bitio_state * bs,
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| 106 | mg_u_long *bits)
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[3745] | 107 | {
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[25147] | 108 | register mg_u_long val;
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[3745] | 109 | DECODE_CONTINUE (*bs)
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| 110 | if (bits)
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| 111 | BINARY_DECODE_L (val, b, *bits);
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| 112 | else
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| 113 | BINARY_DECODE (val, b);
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| 114 | DECODE_PAUSE (*bs)
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| 115 | return (val);
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| 116 | }
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| 117 |
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| 118 |
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| 119 |
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| 120 |
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| 121 |
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| 122 |
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| 123 |
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| 124 | void
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[25147] | 125 | BIO_Mems_Gamma_Encode (mg_u_long val, mems_bitio_state * bs,
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| 126 | mg_u_long *bits)
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[3745] | 127 | {
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| 128 | ENCODE_CONTINUE (*bs)
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| 129 | if (bits)
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| 130 | GAMMA_ENCODE_L (val, *bits);
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| 131 | else
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| 132 | GAMMA_ENCODE (val);
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| 133 | ENCODE_PAUSE (*bs)
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| 134 | }
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| 135 |
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| 136 |
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[25147] | 137 | mg_u_long
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| 138 | BIO_Mems_Gamma_Decode (mems_bitio_state * bs, mg_u_long *bits)
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[3745] | 139 | {
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[25147] | 140 | register mg_u_long val;
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[3745] | 141 | DECODE_CONTINUE (*bs)
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| 142 | if (bits)
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| 143 | GAMMA_DECODE_L (val, *bits);
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| 144 | else
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| 145 | GAMMA_DECODE (val);
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| 146 | DECODE_PAUSE (*bs)
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| 147 | return (val);
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| 148 | }
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| 149 |
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| 150 |
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| 151 |
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| 152 |
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| 153 | void
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[25147] | 154 | BIO_Mems_Delta_Encode (mg_u_long val, mems_bitio_state * bs,
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| 155 | mg_u_long *bits)
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[3745] | 156 | {
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| 157 | ENCODE_CONTINUE (*bs)
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| 158 | if (bits)
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| 159 | DELTA_ENCODE_L (val, *bits);
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| 160 | else
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| 161 | DELTA_ENCODE (val);
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| 162 | ENCODE_PAUSE (*bs)
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| 163 | }
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| 164 |
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| 165 |
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[25147] | 166 | mg_u_long
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| 167 | BIO_Mems_Delta_Decode (mems_bitio_state * bs, mg_u_long *bits)
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[3745] | 168 | {
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[25147] | 169 | register mg_u_long val;
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[3745] | 170 | DECODE_CONTINUE (*bs)
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| 171 | if (bits)
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| 172 | DELTA_DECODE_L (val, *bits);
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| 173 | else
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| 174 | DELTA_DECODE (val);
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| 175 | DECODE_PAUSE (*bs)
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| 176 | return (val);
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| 177 | }
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| 178 |
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| 179 | void
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[25147] | 180 | BIO_Mems_Elias_Encode (mg_u_long val, mg_u_long b, double s,
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| 181 | mems_bitio_state * bs, mg_u_long *bits)
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[3745] | 182 | {
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| 183 | ENCODE_CONTINUE (*bs)
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| 184 | if (bits)
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| 185 | ELIAS_ENCODE_L (val, b, s, *bits);
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| 186 | else
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| 187 | ELIAS_ENCODE (val, b, s);
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| 188 | ENCODE_PAUSE (*bs)
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| 189 | }
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| 190 |
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| 191 |
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[25147] | 192 | mg_u_long
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| 193 | BIO_Mems_Elias_Decode (mg_u_long b, double s,
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| 194 | mems_bitio_state * bs, mg_u_long *bits)
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[3745] | 195 | {
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[25147] | 196 | register mg_u_long val;
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[3745] | 197 | DECODE_CONTINUE (*bs)
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| 198 | if (bits)
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| 199 | ELIAS_DECODE_L (val, b, s, *bits);
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| 200 | else
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| 201 | ELIAS_DECODE (val, b, s);
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| 202 | DECODE_PAUSE (*bs)
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| 203 | return (val);
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| 204 | }
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| 205 |
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| 206 | void
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[25147] | 207 | BIO_Mems_Bblock_Encode (mg_u_long val, mg_u_long b,
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| 208 | mems_bitio_state * bs, mg_u_long *bits)
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[3745] | 209 | {
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| 210 | ENCODE_CONTINUE (*bs)
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| 211 | if (bits)
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| 212 | BBLOCK_ENCODE_L (val, b, *bits);
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| 213 | else
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| 214 | BBLOCK_ENCODE (val, b);
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| 215 | ENCODE_PAUSE (*bs)
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| 216 | }
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| 217 |
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| 218 |
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[25147] | 219 | mg_u_long
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| 220 | BIO_Mems_Bblock_Decode (mg_u_long b, mems_bitio_state * bs,
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| 221 | mg_u_long *bits)
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[3745] | 222 | {
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[25147] | 223 | register mg_u_long val;
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[3745] | 224 | DECODE_CONTINUE (*bs)
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| 225 | if (bits)
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| 226 | BBLOCK_DECODE_L (val, b, *bits);
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| 227 | else
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| 228 | BBLOCK_DECODE (val, b);
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| 229 | DECODE_PAUSE (*bs)
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| 230 | return (val);
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| 231 | }
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| 232 |
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| 233 | void
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[25147] | 234 | BIO_Mems_Decode_Seek (mg_u_long pos, mems_bitio_state * bs)
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[3745] | 235 | {
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| 236 | DECODE_CONTINUE (*bs)
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| 237 | DECODE_SEEK (pos);
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| 238 | DECODE_PAUSE (*bs)
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| 239 | }
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| 240 |
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| 241 | void
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[25147] | 242 | BIO_Mems_Encode_Seek (mg_u_long pos, mems_bitio_state * bs)
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[3745] | 243 | {
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| 244 | ENCODE_CONTINUE (*bs)
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| 245 | ENCODE_SEEK (pos);
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| 246 | ENCODE_PAUSE (*bs)
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| 247 | }
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