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   1 /*
   2 libimago - a multi-format image file input/output library.
   3 Copyright (C) 2010-2017 John Tsiombikas <nuclear@member.fsf.org>
   4
   5 This program is free software: you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published
   7 by the Free Software Foundation, either version 3 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License
  16 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18 #ifndef IMAGO_BYTEORD_H_
  19 #define IMAGO_BYTEORD_H_
  20
  21 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199900) || (defined(_MSC_VER) && _MSC_VER >= 1600)
  22 #include <stdint.h>
  23 #else
  24 #include <sys/types.h>
  25 #endif
  26 #if defined(__DOS__) || defined(DOS)
  27 typedef signed char int8_t;
  28 typedef unsigned char uint8_t;
  29 typedef short int16_t;
  30 typedef unsigned short uint16_t;
  31 typedef long int32_t;
  32 typedef unsigned long uint32_t;
  33 #endif
  34
  35 #include "imago2.h"
  36
  37 #if  defined(__i386__) || defined(__ia64__) || defined(WIN32) || \
  38     (defined(__alpha__) || defined(__alpha)) || \
  39      defined(__arm__) || \
  40     (defined(__mips__) && defined(__MIPSEL__)) || \
  41      defined(__SYMBIAN32__) || \
  42      defined(__x86_64__) || \
  43      defined(__LITTLE_ENDIAN__)
  44 /* little endian */
  45 #define IMAGO_LITTLE_ENDIAN
  46
  47 #define img_read_int16_le(f)            img_read_int16(f)
  48 #define img_write_int16_le(f, v)        img_write_int16(f, v)
  49 #define img_read_int16_be(f)            img_read_int16_inv(f)
  50 #define img_write_int16_be(f, v)        img_write_int16_inv(f, v)
  51 #define img_read_uint16_le(f)           img_read_uint16(f)
  52 #define img_write_uint16_le(f, v)       img_write_uint16(f, v)
  53 #define img_read_uint16_be(f)           img_read_uint16_inv(f)
  54 #define img_write_uint16_be(f, v)       img_write_uint16_inv(f, v)
  55
  56 #define img_read_uint32_be(f)           img_read_uint32_inv(f)
  57 #else
  58 /* big endian */
  59 #define IMAGO_BIG_ENDIAN
  60
  61 #define img_read_int16_le(f)            img_read_int16_inv(f)
  62 #define img_write_int16_le(f, v)        img_write_int16_inv(f, v)
  63 #define img_read_int16_be(f)            img_read_int16(f)
  64 #define img_write_int16_be(f, v)        img_write_int16(f, v)
  65 #define img_read_uint16_le(f)           img_read_uint16_inv(f)
  66 #define img_write_uint16_le(f, v)       img_write_uint16_inv(f, v)
  67 #define img_read_uint16_be(f)           img_read_uint16(f)
  68 #define img_write_uint16_be(f, v)       img_write_uint16(f, v)
  69
  70 #define img_read_uint32_be(f)           img_read_uint32(f)
  71 #endif  /* endian check */
  72
  73 int16_t img_read_int16(struct img_io *io);
  74 int16_t img_read_int16_inv(struct img_io *io);
  75 uint16_t img_read_uint16(struct img_io *io);
  76 uint16_t img_read_uint16_inv(struct img_io *io);
  77
  78 void img_write_int16(struct img_io *io, int16_t val);
  79 void img_write_int16_inv(struct img_io *io, int16_t val);
  80 void img_write_uint16(struct img_io *io, uint16_t val);
  81 void img_write_uint16_inv(struct img_io *io, uint16_t val);
  82
  83 uint32_t img_read_uint32(struct img_io *io);
  84 uint32_t img_read_uint32_inv(struct img_io *io);
  85
  86
  87 #endif  /* IMAGO_BYTEORD_H_ */