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 3745 2003-02-20 21:20:24Z mdewsnip $
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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 2003/02/20 21:14:16 mdewsnip
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27 | Addition of MG package for search and retrieval
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28 |
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29 | Revision 1.1 1999/08/10 21:16:45 sjboddie
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30 | renamed mg-1.3d directory mg
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31 |
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32 | Revision 1.1 1998/11/17 09:31:47 rjmcnab
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33 | *** empty log message ***
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34 |
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35 | * Revision 1.1 1994/08/22 00:24:39 tes
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36 | * Initial placement under CVS.
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37 | *
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38 | */
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39 |
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40 | static char *RCSID = "$Id: bitio_mem.c 3745 2003-02-20 21:20:24Z mdewsnip $";
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41 |
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42 |
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43 |
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44 | #include "sysfuncs.h"
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45 |
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46 | #include "bitio_m_mem.h"
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47 | #include "bitio_m.h"
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48 |
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49 | int fprintf (FILE *, const char *,...);
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50 |
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51 |
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52 |
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53 | void
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54 | BIO_Mem_Encode_Start (void *buf, int rem, mem_bitio_state * bs)
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55 | {
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56 | ENCODE_START (buf, rem)
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57 | ENCODE_PAUSE (*bs)
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58 | }
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59 |
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60 | void
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61 | BIO_Mem_Encode_Done (mem_bitio_state * bs)
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62 | {
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63 | ENCODE_CONTINUE (*bs)
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64 | ENCODE_DONE
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65 | }
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66 |
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67 |
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68 | void
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69 | BIO_Mem_Decode_Start (void *buf, int rem, mem_bitio_state * bs)
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70 | {
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71 | DECODE_START (buf, rem)
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72 | DECODE_PAUSE (*bs)
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73 | }
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74 |
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75 |
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76 |
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77 |
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78 | void
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79 | BIO_Mem_Unary_Encode (unsigned long val, mem_bitio_state * bs,
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80 | unsigned long *bits)
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81 | {
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82 | ENCODE_CONTINUE (*bs)
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83 | if (bits)
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84 | UNARY_ENCODE_L (val, *bits);
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85 | else
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86 | UNARY_ENCODE (val);
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87 | ENCODE_PAUSE (*bs)
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88 | }
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89 |
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90 |
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91 | unsigned long
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92 | BIO_Mem_Unary_Decode (mem_bitio_state * bs,
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93 | unsigned long *bits)
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94 | {
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95 | register unsigned long val;
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96 | DECODE_CONTINUE (*bs)
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97 | if (bits)
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98 | UNARY_DECODE_L (val, *bits);
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99 | else
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100 | UNARY_DECODE (val);
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101 | DECODE_PAUSE (*bs)
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102 | return (val);
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103 | }
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104 |
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105 |
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106 |
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107 |
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108 |
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109 |
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110 |
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111 | void
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112 | BIO_Mem_Binary_Encode (unsigned long val, unsigned long b,
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113 | mem_bitio_state * bs, unsigned long *bits)
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114 | {
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115 | ENCODE_CONTINUE (*bs)
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116 | if (bits)
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117 | BINARY_ENCODE_L (val, b, *bits);
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118 | else
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119 | BINARY_ENCODE (val, b);
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120 | ENCODE_PAUSE (*bs)
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121 | }
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122 |
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123 |
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124 | unsigned long
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125 | BIO_Mem_Binary_Decode (unsigned long b, mem_bitio_state * bs,
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126 | unsigned long *bits)
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127 | {
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128 | register unsigned long val;
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129 | DECODE_CONTINUE (*bs)
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130 | if (bits)
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131 | BINARY_DECODE_L (val, b, *bits);
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132 | else
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133 | BINARY_DECODE (val, b);
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134 | DECODE_PAUSE (*bs)
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135 | return (val);
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136 | }
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137 |
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138 |
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139 |
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140 |
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141 |
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142 |
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143 |
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144 | void
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145 | BIO_Mem_Gamma_Encode (unsigned long val, mem_bitio_state * bs,
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146 | unsigned long *bits)
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147 | {
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148 | ENCODE_CONTINUE (*bs)
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149 | if (bits)
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150 | GAMMA_ENCODE_L (val, *bits);
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151 | else
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152 | GAMMA_ENCODE (val);
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153 | ENCODE_PAUSE (*bs)
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154 | }
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155 |
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156 |
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157 | unsigned long
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158 | BIO_Mem_Gamma_Decode (mem_bitio_state * bs, unsigned long *bits)
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159 | {
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160 | register unsigned long val;
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161 | DECODE_CONTINUE (*bs)
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162 | if (bits)
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163 | GAMMA_DECODE_L (val, *bits);
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164 | else
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165 | GAMMA_DECODE (val);
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166 | DECODE_PAUSE (*bs)
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167 | return (val);
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168 | }
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169 |
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170 |
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171 |
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172 |
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173 | void
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174 | BIO_Mem_Delta_Encode (unsigned long val, mem_bitio_state * bs,
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175 | unsigned long *bits)
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176 | {
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177 | ENCODE_CONTINUE (*bs)
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178 | if (bits)
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179 | DELTA_ENCODE_L (val, *bits);
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180 | else
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181 | DELTA_ENCODE (val);
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182 | ENCODE_PAUSE (*bs)
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183 | }
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184 |
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185 |
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186 | unsigned long
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187 | BIO_Mem_Delta_Decode (mem_bitio_state * bs, unsigned long *bits)
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188 | {
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189 | register unsigned long val;
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190 | DECODE_CONTINUE (*bs)
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191 | if (bits)
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192 | DELTA_DECODE_L (val, *bits);
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193 | else
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194 | DELTA_DECODE (val);
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195 | DECODE_PAUSE (*bs)
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196 | return (val);
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197 | }
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198 |
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199 | void
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200 | BIO_Mem_Elias_Encode (unsigned long val, unsigned long b, double s,
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201 | mem_bitio_state * bs, unsigned long *bits)
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202 | {
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203 | ENCODE_CONTINUE (*bs)
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204 | if (bits)
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205 | ELIAS_ENCODE_L (val, b, s, *bits);
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206 | else
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207 | ELIAS_ENCODE (val, b, s);
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208 | ENCODE_PAUSE (*bs)
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209 | }
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210 |
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211 |
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212 | unsigned long
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213 | BIO_Mem_Elias_Decode (unsigned long b, double s,
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214 | mem_bitio_state * bs, unsigned long *bits)
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215 | {
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216 | register unsigned long val;
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217 | DECODE_CONTINUE (*bs)
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218 | if (bits)
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219 | ELIAS_DECODE_L (val, b, s, *bits);
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220 | else
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221 | ELIAS_DECODE (val, b, s);
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222 | DECODE_PAUSE (*bs)
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223 | return (val);
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224 | }
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225 |
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226 | void
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227 | BIO_Mem_Bblock_Encode (unsigned long val, unsigned long b,
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228 | mem_bitio_state * bs, unsigned long *bits)
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229 | {
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230 | ENCODE_CONTINUE (*bs)
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231 | if (bits)
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232 | BBLOCK_ENCODE_L (val, b, *bits);
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233 | else
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234 | BBLOCK_ENCODE (val, b);
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235 | ENCODE_PAUSE (*bs)
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236 | }
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237 |
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238 |
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239 | unsigned long
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240 | BIO_Mem_Bblock_Decode (unsigned long b, mem_bitio_state * bs,
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241 | unsigned long *bits)
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242 | {
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243 | register unsigned long val;
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244 | DECODE_CONTINUE (*bs)
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245 | if (bits)
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246 | BBLOCK_DECODE_L (val, b, *bits);
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247 | else
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248 | BBLOCK_DECODE (val, b);
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249 | DECODE_PAUSE (*bs)
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250 | return (val);
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251 | }
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252 |
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253 | void
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254 | BIO_Mem_Decode_Seek (unsigned long pos, mem_bitio_state * bs)
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255 | {
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256 | DECODE_CONTINUE (*bs)
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257 | DECODE_SEEK (pos);
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258 | DECODE_PAUSE (*bs)
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259 | }
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