[13] | 1 | /**************************************************************************
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| 2 | *
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| 3 | * bitio_mem.c -- Functions for bitio to memory
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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 | * $Id: bitio_mem.c 13 1998-11-17 09:36:00Z rjmcnab $
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| 21 | *
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| 22 | **************************************************************************/
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| 23 |
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| 24 | /*
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| 25 | $Log$
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| 26 | Revision 1.1 1998/11/17 09:31:47 rjmcnab
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| 27 | *** empty log message ***
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| 28 |
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| 29 | * Revision 1.1 1994/08/22 00:24:39 tes
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| 30 | * Initial placement under CVS.
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| 31 | *
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| 32 | */
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| 33 |
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| 34 | static char *RCSID = "$Id: bitio_mem.c 13 1998-11-17 09:36:00Z rjmcnab $";
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| 35 |
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| 36 |
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| 37 |
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| 38 | #include "sysfuncs.h"
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| 39 |
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| 40 | #include "bitio_m_mem.h"
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| 41 | #include "bitio_m.h"
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| 42 |
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| 43 | int fprintf (FILE *, const char *,...);
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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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| 48 | BIO_Mem_Encode_Start (void *buf, int rem, mem_bitio_state * bs)
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| 49 | {
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| 50 | ENCODE_START (buf, rem)
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| 51 | ENCODE_PAUSE (*bs)
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| 52 | }
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| 53 |
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| 54 | void
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| 55 | BIO_Mem_Encode_Done (mem_bitio_state * bs)
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| 56 | {
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| 57 | ENCODE_CONTINUE (*bs)
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| 58 | ENCODE_DONE
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| 59 | }
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| 60 |
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| 61 |
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| 62 | void
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| 63 | BIO_Mem_Decode_Start (void *buf, int rem, mem_bitio_state * bs)
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| 64 | {
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| 65 | DECODE_START (buf, rem)
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| 66 | DECODE_PAUSE (*bs)
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| 67 | }
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| 68 |
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| 69 |
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| 70 |
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| 71 |
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| 72 | void
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| 73 | BIO_Mem_Unary_Encode (unsigned long val, mem_bitio_state * bs,
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| 74 | unsigned long *bits)
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| 75 | {
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| 76 | ENCODE_CONTINUE (*bs)
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| 77 | if (bits)
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| 78 | UNARY_ENCODE_L (val, *bits);
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| 79 | else
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| 80 | UNARY_ENCODE (val);
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| 81 | ENCODE_PAUSE (*bs)
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| 82 | }
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| 83 |
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| 84 |
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| 85 | unsigned long
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| 86 | BIO_Mem_Unary_Decode (mem_bitio_state * bs,
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| 87 | unsigned long *bits)
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| 88 | {
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| 89 | register unsigned long val;
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| 90 | DECODE_CONTINUE (*bs)
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| 91 | if (bits)
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| 92 | UNARY_DECODE_L (val, *bits);
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| 93 | else
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| 94 | UNARY_DECODE (val);
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| 95 | DECODE_PAUSE (*bs)
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| 96 | return (val);
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| 97 | }
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| 98 |
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| 99 |
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| 100 |
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| 101 |
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| 102 |
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| 103 |
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| 104 |
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| 105 | void
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| 106 | BIO_Mem_Binary_Encode (unsigned long val, unsigned long b,
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| 107 | mem_bitio_state * bs, unsigned long *bits)
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| 108 | {
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| 109 | ENCODE_CONTINUE (*bs)
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| 110 | if (bits)
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| 111 | BINARY_ENCODE_L (val, b, *bits);
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| 112 | else
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| 113 | BINARY_ENCODE (val, b);
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| 114 | ENCODE_PAUSE (*bs)
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| 115 | }
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| 116 |
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| 117 |
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| 118 | unsigned long
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| 119 | BIO_Mem_Binary_Decode (unsigned long b, mem_bitio_state * bs,
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| 120 | unsigned long *bits)
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| 121 | {
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| 122 | register unsigned long val;
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| 123 | DECODE_CONTINUE (*bs)
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| 124 | if (bits)
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| 125 | BINARY_DECODE_L (val, b, *bits);
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| 126 | else
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| 127 | BINARY_DECODE (val, b);
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| 128 | DECODE_PAUSE (*bs)
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| 129 | return (val);
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| 130 | }
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| 131 |
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| 132 |
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| 133 |
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| 134 |
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| 135 |
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| 136 |
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| 137 |
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| 138 | void
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| 139 | BIO_Mem_Gamma_Encode (unsigned long val, mem_bitio_state * bs,
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| 140 | unsigned long *bits)
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| 141 | {
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| 142 | ENCODE_CONTINUE (*bs)
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| 143 | if (bits)
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| 144 | GAMMA_ENCODE_L (val, *bits);
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| 145 | else
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| 146 | GAMMA_ENCODE (val);
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| 147 | ENCODE_PAUSE (*bs)
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| 148 | }
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| 149 |
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| 150 |
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| 151 | unsigned long
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| 152 | BIO_Mem_Gamma_Decode (mem_bitio_state * bs, unsigned long *bits)
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| 153 | {
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| 154 | register unsigned long val;
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| 155 | DECODE_CONTINUE (*bs)
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| 156 | if (bits)
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| 157 | GAMMA_DECODE_L (val, *bits);
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| 158 | else
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| 159 | GAMMA_DECODE (val);
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| 160 | DECODE_PAUSE (*bs)
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| 161 | return (val);
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| 162 | }
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| 163 |
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| 164 |
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| 165 |
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| 166 |
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| 167 | void
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| 168 | BIO_Mem_Delta_Encode (unsigned long val, mem_bitio_state * bs,
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| 169 | unsigned long *bits)
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| 170 | {
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| 171 | ENCODE_CONTINUE (*bs)
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| 172 | if (bits)
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| 173 | DELTA_ENCODE_L (val, *bits);
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| 174 | else
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| 175 | DELTA_ENCODE (val);
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| 176 | ENCODE_PAUSE (*bs)
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| 177 | }
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| 178 |
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| 179 |
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| 180 | unsigned long
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| 181 | BIO_Mem_Delta_Decode (mem_bitio_state * bs, unsigned long *bits)
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| 182 | {
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| 183 | register unsigned long val;
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| 184 | DECODE_CONTINUE (*bs)
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| 185 | if (bits)
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| 186 | DELTA_DECODE_L (val, *bits);
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| 187 | else
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| 188 | DELTA_DECODE (val);
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| 189 | DECODE_PAUSE (*bs)
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| 190 | return (val);
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| 191 | }
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| 192 |
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| 193 | void
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| 194 | BIO_Mem_Elias_Encode (unsigned long val, unsigned long b, double s,
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| 195 | mem_bitio_state * bs, unsigned long *bits)
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| 196 | {
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| 197 | ENCODE_CONTINUE (*bs)
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| 198 | if (bits)
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| 199 | ELIAS_ENCODE_L (val, b, s, *bits);
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| 200 | else
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| 201 | ELIAS_ENCODE (val, b, s);
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| 202 | ENCODE_PAUSE (*bs)
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| 203 | }
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| 204 |
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| 205 |
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| 206 | unsigned long
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| 207 | BIO_Mem_Elias_Decode (unsigned long b, double s,
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| 208 | mem_bitio_state * bs, unsigned long *bits)
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| 209 | {
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| 210 | register unsigned long val;
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| 211 | DECODE_CONTINUE (*bs)
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| 212 | if (bits)
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| 213 | ELIAS_DECODE_L (val, b, s, *bits);
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| 214 | else
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| 215 | ELIAS_DECODE (val, b, s);
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| 216 | DECODE_PAUSE (*bs)
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| 217 | return (val);
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| 218 | }
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| 219 |
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| 220 | void
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| 221 | BIO_Mem_Bblock_Encode (unsigned long val, unsigned long b,
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| 222 | mem_bitio_state * bs, unsigned long *bits)
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| 223 | {
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| 224 | ENCODE_CONTINUE (*bs)
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| 225 | if (bits)
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| 226 | BBLOCK_ENCODE_L (val, b, *bits);
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| 227 | else
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| 228 | BBLOCK_ENCODE (val, b);
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| 229 | ENCODE_PAUSE (*bs)
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| 230 | }
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| 231 |
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| 232 |
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| 233 | unsigned long
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| 234 | BIO_Mem_Bblock_Decode (unsigned long b, mem_bitio_state * bs,
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| 235 | unsigned long *bits)
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| 236 | {
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| 237 | register unsigned long val;
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| 238 | DECODE_CONTINUE (*bs)
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| 239 | if (bits)
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| 240 | BBLOCK_DECODE_L (val, b, *bits);
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| 241 | else
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| 242 | BBLOCK_DECODE (val, b);
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| 243 | DECODE_PAUSE (*bs)
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| 244 | return (val);
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| 245 | }
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| 246 |
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| 247 | void
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| 248 | BIO_Mem_Decode_Seek (unsigned long pos, mem_bitio_state * bs)
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| 249 | {
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| 250 | DECODE_CONTINUE (*bs)
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| 251 | DECODE_SEEK (pos);
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| 252 | DECODE_PAUSE (*bs)
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| 253 | }
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