1 /* 2 * Byte stream functions 3 * 4 * Copyright (C) 2011-2021, Joachim Metz <joachim.metz@gmail.com> 5 * 6 * Refer to AUTHORS for acknowledgements. 7 * 8 * This program is free software: you can redistribute it and/or modify 9 * it under the terms of the GNU Lesser General Public License as published by 10 * the Free Software Foundation, either version 3 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public License 19 * along with this program. If not, see <https://www.gnu.org/licenses/>. 20 */ 21 22 #if !defined( _BYTE_STREAM_H ) 23 #define _BYTE_STREAM_H 24 25 #include "common.h" 26 #include "types.h" 27 28 #if defined( __cplusplus ) 29 extern "C" { 30 #endif 31 32 #define _BYTE_STREAM_HOST_IS_ENDIAN_BIG ( *((uint32_t *) "\x01\x02\x03\x04" ) == 0x01020304 ) 33 #define _BYTE_STREAM_HOST_IS_ENDIAN_LITTLE ( *((uint32_t *) "\x01\x02\x03\x04" ) == 0x04030201 ) 34 #define _BYTE_STREAM_HOST_IS_ENDIAN_MIDDLE ( *((uint32_t *) "\x01\x02\x03\x04" ) == 0x02010403 ) 35 36 #define _BYTE_STREAM_ENDIAN_BIG (uint8_t) 'b' 37 #define _BYTE_STREAM_ENDIAN_LITTLE (uint8_t) 'l' 38 #define _BYTE_STREAM_ENDIAN_MIDDLE (uint8_t) 'm' 39 40 typedef union byte_stream_float32 41 { 42 float floating_point; 43 uint32_t integer; 44 45 } byte_stream_float32_t; 46 47 typedef union byte_stream_float64 48 { 49 double floating_point; 50 uint64_t integer; 51 52 } byte_stream_float64_t; 53 54 #define byte_stream_copy_to_uint16_big_endian( byte_stream, value ) \ 55 ( value ) = ( byte_stream )[ 0 ]; \ 56 ( value ) <<= 8; \ 57 ( value ) |= ( byte_stream )[ 1 ]; 58 59 #define byte_stream_copy_to_uint16_little_endian( byte_stream, value ) \ 60 ( value ) = ( byte_stream )[ 1 ]; \ 61 ( value ) <<= 8; \ 62 ( value ) |= ( byte_stream )[ 0 ]; 63 64 #define byte_stream_copy_to_uint24_big_endian( byte_stream, value ) \ 65 ( value ) = ( byte_stream )[ 0 ]; \ 66 ( value ) <<= 8; \ 67 ( value ) |= ( byte_stream )[ 1 ]; \ 68 ( value ) <<= 8; \ 69 ( value ) |= ( byte_stream )[ 2 ]; 70 71 #define byte_stream_copy_to_uint24_little_endian( byte_stream, value ) \ 72 ( value ) = ( byte_stream )[ 2 ]; \ 73 ( value ) <<= 8; \ 74 ( value ) |= ( byte_stream )[ 1 ]; \ 75 ( value ) <<= 8; \ 76 ( value ) |= ( byte_stream )[ 0 ]; 77 78 #define byte_stream_copy_to_uint32_big_endian( byte_stream, value ) \ 79 ( value ) = ( byte_stream )[ 0 ]; \ 80 ( value ) <<= 8; \ 81 ( value ) |= ( byte_stream )[ 1 ]; \ 82 ( value ) <<= 8; \ 83 ( value ) |= ( byte_stream )[ 2 ]; \ 84 ( value ) <<= 8; \ 85 ( value ) |= ( byte_stream )[ 3 ]; 86 87 #define byte_stream_copy_to_uint32_little_endian( byte_stream, value ) \ 88 ( value ) = ( byte_stream )[ 3 ]; \ 89 ( value ) <<= 8; \ 90 ( value ) |= ( byte_stream )[ 2 ]; \ 91 ( value ) <<= 8; \ 92 ( value ) |= ( byte_stream )[ 1 ]; \ 93 ( value ) <<= 8; \ 94 ( value ) |= ( byte_stream )[ 0 ]; 95 96 #define byte_stream_copy_to_uint48_big_endian( byte_stream, value ) \ 97 ( value ) = ( byte_stream )[ 0 ]; \ 98 ( value ) <<= 8; \ 99 ( value ) |= ( byte_stream )[ 1 ]; \ 100 ( value ) <<= 8; \ 101 ( value ) |= ( byte_stream )[ 2 ]; \ 102 ( value ) <<= 8; \ 103 ( value ) |= ( byte_stream )[ 3 ]; \ 104 ( value ) <<= 8; \ 105 ( value ) |= ( byte_stream )[ 4 ]; \ 106 ( value ) <<= 8; \ 107 ( value ) |= ( byte_stream )[ 5 ]; 108 109 #define byte_stream_copy_to_uint48_little_endian( byte_stream, value ) \ 110 ( value ) |= ( byte_stream )[ 5 ]; \ 111 ( value ) <<= 8; \ 112 ( value ) |= ( byte_stream )[ 4 ]; \ 113 ( value ) <<= 8; \ 114 ( value ) |= ( byte_stream )[ 3 ]; \ 115 ( value ) <<= 8; \ 116 ( value ) |= ( byte_stream )[ 2 ]; \ 117 ( value ) <<= 8; \ 118 ( value ) |= ( byte_stream )[ 1 ]; \ 119 ( value ) <<= 8; \ 120 ( value ) |= ( byte_stream )[ 0 ]; 121 122 #define byte_stream_copy_to_uint64_big_endian( byte_stream, value ) \ 123 ( value ) = ( byte_stream )[ 0 ]; \ 124 ( value ) <<= 8; \ 125 ( value ) |= ( byte_stream )[ 1 ]; \ 126 ( value ) <<= 8; \ 127 ( value ) |= ( byte_stream )[ 2 ]; \ 128 ( value ) <<= 8; \ 129 ( value ) |= ( byte_stream )[ 3 ]; \ 130 ( value ) <<= 8; \ 131 ( value ) |= ( byte_stream )[ 4 ]; \ 132 ( value ) <<= 8; \ 133 ( value ) |= ( byte_stream )[ 5 ]; \ 134 ( value ) <<= 8; \ 135 ( value ) |= ( byte_stream )[ 6 ]; \ 136 ( value ) <<= 8; \ 137 ( value ) |= ( byte_stream )[ 7 ]; 138 139 #define byte_stream_copy_to_uint64_little_endian( byte_stream, value ) \ 140 ( value ) = ( byte_stream )[ 7 ]; \ 141 ( value ) <<= 8; \ 142 ( value ) |= ( byte_stream )[ 6 ]; \ 143 ( value ) <<= 8; \ 144 ( value ) |= ( byte_stream )[ 5 ]; \ 145 ( value ) <<= 8; \ 146 ( value ) |= ( byte_stream )[ 4 ]; \ 147 ( value ) <<= 8; \ 148 ( value ) |= ( byte_stream )[ 3 ]; \ 149 ( value ) <<= 8; \ 150 ( value ) |= ( byte_stream )[ 2 ]; \ 151 ( value ) <<= 8; \ 152 ( value ) |= ( byte_stream )[ 1 ]; \ 153 ( value ) <<= 8; \ 154 ( value ) |= ( byte_stream )[ 0 ]; 155 156 #define byte_stream_copy_from_uint16_big_endian( byte_stream, value ) \ 157 ( byte_stream )[ 0 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \ 158 ( byte_stream )[ 1 ] = (uint8_t) ( ( value ) & 0x0ff ) 159 160 #define byte_stream_copy_from_uint16_little_endian( byte_stream, value ) \ 161 ( byte_stream )[ 1 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \ 162 ( byte_stream )[ 0 ] = (uint8_t) ( ( value ) & 0x0ff ) 163 164 #define byte_stream_copy_from_uint24_big_endian( byte_stream, value ) \ 165 ( byte_stream )[ 0 ] = (uint8_t) ( ( ( value ) >> 16 ) & 0x0ff ); \ 166 ( byte_stream )[ 1 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \ 167 ( byte_stream )[ 2 ] = (uint8_t) ( ( value ) & 0x0ff ) 168 169 #define byte_stream_copy_from_uint24_little_endian( byte_stream, value ) \ 170 ( byte_stream )[ 2 ] = (uint8_t) ( ( ( value ) >> 16 ) & 0x0ff ); \ 171 ( byte_stream )[ 1 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \ 172 ( byte_stream )[ 0 ] = (uint8_t) ( ( value ) & 0x0ff ) 173 174 #define byte_stream_copy_from_uint32_big_endian( byte_stream, value ) \ 175 ( byte_stream )[ 0 ] = (uint8_t) ( ( ( value ) >> 24 ) & 0x0ff ); \ 176 ( byte_stream )[ 1 ] = (uint8_t) ( ( ( value ) >> 16 ) & 0x0ff ); \ 177 ( byte_stream )[ 2 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \ 178 ( byte_stream )[ 3 ] = (uint8_t) ( ( value ) & 0x0ff ) 179 180 #define byte_stream_copy_from_uint32_little_endian( byte_stream, value ) \ 181 ( byte_stream )[ 3 ] = (uint8_t) ( ( ( value ) >> 24 ) & 0x0ff ); \ 182 ( byte_stream )[ 2 ] = (uint8_t) ( ( ( value ) >> 16 ) & 0x0ff ); \ 183 ( byte_stream )[ 1 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \ 184 ( byte_stream )[ 0 ] = (uint8_t) ( ( value ) & 0x0ff ) 185 186 #define byte_stream_copy_from_uint48_big_endian( byte_stream, value ) \ 187 ( byte_stream )[ 0 ] = (uint8_t) ( ( ( value ) >> 40 ) & 0x0ff ); \ 188 ( byte_stream )[ 1 ] = (uint8_t) ( ( ( value ) >> 32 ) & 0x0ff ); \ 189 ( byte_stream )[ 2 ] = (uint8_t) ( ( ( value ) >> 24 ) & 0x0ff ); \ 190 ( byte_stream )[ 3 ] = (uint8_t) ( ( ( value ) >> 16 ) & 0x0ff ); \ 191 ( byte_stream )[ 4 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \ 192 ( byte_stream )[ 5 ] = (uint8_t) ( ( value ) & 0x0ff ) 193 194 #define byte_stream_copy_from_uint48_little_endian( byte_stream, value ) \ 195 ( byte_stream )[ 5 ] = (uint8_t) ( ( ( value ) >> 40 ) & 0x0ff ); \ 196 ( byte_stream )[ 4 ] = (uint8_t) ( ( ( value ) >> 32 ) & 0x0ff ); \ 197 ( byte_stream )[ 3 ] = (uint8_t) ( ( ( value ) >> 24 ) & 0x0ff ); \ 198 ( byte_stream )[ 2 ] = (uint8_t) ( ( ( value ) >> 16 ) & 0x0ff ); \ 199 ( byte_stream )[ 1 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \ 200 ( byte_stream )[ 0 ] = (uint8_t) ( ( value ) & 0x0ff ) 201 202 #define byte_stream_copy_from_uint64_big_endian( byte_stream, value ) \ 203 ( byte_stream )[ 0 ] = (uint8_t) ( ( ( value ) >> 56 ) & 0x0ff ); \ 204 ( byte_stream )[ 1 ] = (uint8_t) ( ( ( value ) >> 48 ) & 0x0ff ); \ 205 ( byte_stream )[ 2 ] = (uint8_t) ( ( ( value ) >> 40 ) & 0x0ff ); \ 206 ( byte_stream )[ 3 ] = (uint8_t) ( ( ( value ) >> 32 ) & 0x0ff ); \ 207 ( byte_stream )[ 4 ] = (uint8_t) ( ( ( value ) >> 24 ) & 0x0ff ); \ 208 ( byte_stream )[ 5 ] = (uint8_t) ( ( ( value ) >> 16 ) & 0x0ff ); \ 209 ( byte_stream )[ 6 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \ 210 ( byte_stream )[ 7 ] = (uint8_t) ( ( value ) & 0x0ff ) 211 212 #define byte_stream_copy_from_uint64_little_endian( byte_stream, value ) \ 213 ( byte_stream )[ 7 ] = (uint8_t) ( ( ( value ) >> 56 ) & 0x0ff ); \ 214 ( byte_stream )[ 6 ] = (uint8_t) ( ( ( value ) >> 48 ) & 0x0ff ); \ 215 ( byte_stream )[ 5 ] = (uint8_t) ( ( ( value ) >> 40 ) & 0x0ff ); \ 216 ( byte_stream )[ 4 ] = (uint8_t) ( ( ( value ) >> 32 ) & 0x0ff ); \ 217 ( byte_stream )[ 3 ] = (uint8_t) ( ( ( value ) >> 24 ) & 0x0ff ); \ 218 ( byte_stream )[ 2 ] = (uint8_t) ( ( ( value ) >> 16 ) & 0x0ff ); \ 219 ( byte_stream )[ 1 ] = (uint8_t) ( ( ( value ) >> 8 ) & 0x0ff ); \ 220 ( byte_stream )[ 0 ] = (uint8_t) ( ( value ) & 0x0ff ) 221 222 #define byte_stream_bit_rotate_left_8bit( byte_stream, number_of_bits ) \ 223 ( ( ( byte_stream ) << ( number_of_bits ) ) | ( ( byte_stream ) >> ( 8 - ( number_of_bits ) ) ) ) 224 225 #define byte_stream_bit_rotate_right_8bit( byte_stream, number_of_bits ) \ 226 ( ( ( byte_stream ) >> ( number_of_bits ) ) | ( ( byte_stream ) << ( 8 - ( number_of_bits ) ) ) ) 227 228 #define byte_stream_bit_rotate_left_16bit( byte_stream, number_of_bits ) \ 229 ( ( ( byte_stream ) << ( number_of_bits ) ) | ( ( byte_stream ) >> ( 16 - ( number_of_bits ) ) ) ) 230 231 #define byte_stream_bit_rotate_right_16bit( byte_stream, number_of_bits ) \ 232 ( ( ( byte_stream ) >> ( number_of_bits ) ) | ( ( byte_stream ) << ( 16 - ( number_of_bits ) ) ) ) 233 234 #define byte_stream_bit_rotate_left_32bit( byte_stream, number_of_bits ) \ 235 ( ( ( byte_stream ) << ( number_of_bits ) ) | ( ( byte_stream ) >> ( 32 - ( number_of_bits ) ) ) ) 236 237 #define byte_stream_bit_rotate_right_32bit( byte_stream, number_of_bits ) \ 238 ( ( ( byte_stream ) >> ( number_of_bits ) ) | ( ( byte_stream ) << ( 32 - ( number_of_bits ) ) ) ) 239 240 #define byte_stream_bit_rotate_left_64bit( byte_stream, number_of_bits ) \ 241 ( ( ( byte_stream ) << ( number_of_bits ) ) | ( ( byte_stream ) >> ( 64 - ( number_of_bits ) ) ) ) 242 243 #define byte_stream_bit_rotate_right_64bit( byte_stream, number_of_bits ) \ 244 ( ( ( byte_stream ) >> ( number_of_bits ) ) | ( ( byte_stream ) << ( 64 - ( number_of_bits ) ) ) ) 245 246 #define byte_stream_bit_rotate_left( value, number_of_bits ) \ 247 ( ( ( value ) << ( number_of_bits ) ) | ( ( value ) >> ( ( sizeof( value ) << 3 ) - ( number_of_bits ) ) ) ) 248 249 #define byte_stream_bit_rotate_right( value, number_of_bits ) \ 250 ( ( ( value ) >> ( number_of_bits ) ) | ( ( value ) << ( ( sizeof( value ) << 3 ) - ( number_of_bits ) ) ) ) 251 252 #if defined( __cplusplus ) 253 } 254 #endif 255 256 #endif /* !defined( _BYTE_STREAM_H ) */ 257 258