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00022 #ifndef SIDENDIAN_H
00023 #define SIDENDIAN_H
00024
00025 #ifdef HAVE_CONFIG_H
00026 # include "config.h"
00027 #endif
00028
00029
00030
00031
00032
00033
00034
00035
00036
00037 #include <stdint.h>
00038
00039
00040
00041
00042
00043
00044
00045
00046
00048
00050
00051 inline void endian_16lo8 (uint_least16_t &word, uint8_t byte)
00052 {
00053 word &= 0xff00;
00054 word |= byte;
00055 }
00056
00057
00058 inline uint8_t endian_16lo8 (uint_least16_t word)
00059 {
00060 return (uint8_t) word;
00061 }
00062
00063
00064 inline void endian_16hi8 (uint_least16_t &word, uint8_t byte)
00065 {
00066 word &= 0x00ff;
00067 word |= (uint_least16_t) byte << 8;
00068 }
00069
00070
00071 inline uint8_t endian_16hi8 (uint_least16_t word)
00072 {
00073 return (uint8_t) (word >> 8);
00074 }
00075
00076
00077 inline void endian_16swap8 (uint_least16_t &word)
00078 {
00079 uint8_t lo = endian_16lo8 (word);
00080 uint8_t hi = endian_16hi8 (word);
00081 endian_16lo8 (word, hi);
00082 endian_16hi8 (word, lo);
00083 }
00084
00085
00086 inline uint_least16_t endian_16 (uint8_t hi, uint8_t lo)
00087 {
00088 uint_least16_t word = 0;
00089 endian_16lo8 (word, lo);
00090 endian_16hi8 (word, hi);
00091 return word;
00092 }
00093
00094
00095 inline void endian_16 (uint8_t ptr[2], uint_least16_t word)
00096 {
00097 # if defined(WORDS_BIGENDIAN)
00098 ptr[0] = endian_16hi8 (word);
00099 ptr[1] = endian_16lo8 (word);
00100 # else
00101 ptr[0] = endian_16lo8 (word);
00102 ptr[1] = endian_16hi8 (word);
00103 # endif
00104 }
00105
00106 inline void endian_16 (char ptr[2], uint_least16_t word)
00107 {
00108 endian_16 ((uint8_t *) ptr, word);
00109 }
00110
00111
00112 inline uint_least16_t endian_little16 (const uint8_t ptr[2])
00113 {
00114 return endian_16 (ptr[1], ptr[0]);
00115 }
00116
00117
00118 inline void endian_little16 (uint8_t ptr[2], uint_least16_t word)
00119 {
00120 ptr[0] = endian_16lo8 (word);
00121 ptr[1] = endian_16hi8 (word);
00122 }
00123
00124
00125 inline uint_least16_t endian_big16 (const uint8_t ptr[2])
00126 {
00127 return endian_16 (ptr[0], ptr[1]);
00128 }
00129
00130
00131 inline void endian_big16 (uint8_t ptr[2], uint_least16_t word)
00132 {
00133 ptr[0] = endian_16hi8 (word);
00134 ptr[1] = endian_16lo8 (word);
00135 }
00136
00137
00139
00141
00142 inline void endian_32lo16 (uint_least32_t &dword, uint_least16_t word)
00143 {
00144 dword &= (uint_least32_t) 0xffff0000;
00145 dword |= word;
00146 }
00147
00148
00149 inline uint_least16_t endian_32lo16 (uint_least32_t dword)
00150 {
00151 return (uint_least16_t) dword & 0xffff;
00152 }
00153
00154
00155 inline void endian_32hi16 (uint_least32_t &dword, uint_least16_t word)
00156 {
00157 dword &= (uint_least32_t) 0x0000ffff;
00158 dword |= (uint_least32_t) word << 16;
00159 }
00160
00161
00162 inline uint_least16_t endian_32hi16 (uint_least32_t dword)
00163 {
00164 return (uint_least16_t) (dword >> 16);
00165 }
00166
00167
00168 inline void endian_32lo8 (uint_least32_t &dword, uint8_t byte)
00169 {
00170 dword &= (uint_least32_t) 0xffffff00;
00171 dword |= (uint_least32_t) byte;
00172 }
00173
00174
00175 inline uint8_t endian_32lo8 (uint_least32_t dword)
00176 {
00177 return (uint8_t) dword;
00178 }
00179
00180
00181 inline void endian_32hi8 (uint_least32_t &dword, uint8_t byte)
00182 {
00183 dword &= (uint_least32_t) 0xffff00ff;
00184 dword |= (uint_least32_t) byte << 8;
00185 }
00186
00187
00188 inline uint8_t endian_32hi8 (uint_least32_t dword)
00189 {
00190 return (uint8_t) (dword >> 8);
00191 }
00192
00193
00194 inline void endian_32swap16 (uint_least32_t &dword)
00195 {
00196 uint_least16_t lo = endian_32lo16 (dword);
00197 uint_least16_t hi = endian_32hi16 (dword);
00198 endian_32lo16 (dword, hi);
00199 endian_32hi16 (dword, lo);
00200 }
00201
00202
00203 inline void endian_32swap8 (uint_least32_t &dword)
00204 {
00205 uint_least16_t lo = 0, hi = 0;
00206 lo = endian_32lo16 (dword);
00207 hi = endian_32hi16 (dword);
00208 endian_16swap8 (lo);
00209 endian_16swap8 (hi);
00210 endian_32lo16 (dword, hi);
00211 endian_32hi16 (dword, lo);
00212 }
00213
00214
00215 inline uint_least32_t endian_32 (uint8_t hihi, uint8_t hilo, uint8_t hi, uint8_t lo)
00216 {
00217 uint_least32_t dword = 0;
00218 uint_least16_t word = 0;
00219 endian_32lo8 (dword, lo);
00220 endian_32hi8 (dword, hi);
00221 endian_16lo8 (word, hilo);
00222 endian_16hi8 (word, hihi);
00223 endian_32hi16 (dword, word);
00224 return dword;
00225 }
00226
00227
00228 inline uint_least32_t endian_little32 (const uint8_t ptr[4])
00229 {
00230 return endian_32 (ptr[3], ptr[2], ptr[1], ptr[0]);
00231 }
00232
00233
00234 inline void endian_little32 (uint8_t ptr[4], uint_least32_t dword)
00235 {
00236 uint_least16_t word = 0;
00237 ptr[0] = endian_32lo8 (dword);
00238 ptr[1] = endian_32hi8 (dword);
00239 word = endian_32hi16 (dword);
00240 ptr[2] = endian_16lo8 (word);
00241 ptr[3] = endian_16hi8 (word);
00242 }
00243
00244
00245 inline uint_least32_t endian_big32 (const uint8_t ptr[4])
00246 {
00247 return endian_32 (ptr[0], ptr[1], ptr[2], ptr[3]);
00248 }
00249
00250
00251 inline void endian_big32 (uint8_t ptr[4], uint_least32_t dword)
00252 {
00253 uint_least16_t word = 0;
00254 word = endian_32hi16 (dword);
00255 ptr[1] = endian_16lo8 (word);
00256 ptr[0] = endian_16hi8 (word);
00257 ptr[2] = endian_32hi8 (dword);
00258 ptr[3] = endian_32lo8 (dword);
00259 }
00260
00261 #endif // SIDENDIAN_H