src/add-ons/media/plugins/asf_reader/libasf/compat.h

   1 /*  libasf - An Advanced Systems Format media file parser
   2  *  Copyright (C) 2006-2010 Juho Vähä-Herttua
   3  *
   4  *  This library is free software; you can redistribute it and/or
   5  *  modify it under the terms of the GNU Lesser General Public
   6  *  License as published by the Free Software Foundation; either
   7  *  version 2.1 of the License, or (at your option) any later version.
   8  *
   9  *  This library is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12  *  Lesser General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU Lesser General Public
  15  *  License along with this library; if not, write to the Free Software
  16  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #ifndef COMPAT_H
  20 #define COMPAT_H
  21
  22 #ifdef __GNUC__
  23 # define INLINE __inline__
  24 #else
  25 # define INLINE
  26 #endif
  27
  28 static INLINE uint16_t
  29 GetWLE(const void *pointer)
  30 {
  31         const uint8_t *data = pointer;
  32         return ((uint16_t)data[1] << 8) |
  33                ((uint16_t)data[0]);
  34 }
  35
  36 static INLINE uint32_t
  37 GetDWLE(const void *pointer)
  38 {
  39         const uint8_t *data = pointer;
  40         return ((uint32_t)data[3] << 24) |
  41                ((uint32_t)data[2] << 16) |
  42                ((uint32_t)data[1] <<  8) |
  43                ((uint32_t)data[0]);
  44 }
  45
  46 static INLINE uint64_t
  47 GetQWLE(const void *pointer)
  48 {
  49         const uint8_t *data = pointer;
  50         return ((uint64_t)data[7] << 56) |
  51                ((uint64_t)data[6] << 48) |
  52                ((uint64_t)data[5] << 40) |
  53                ((uint64_t)data[4] << 32) |
  54                ((uint64_t)data[3] << 24) |
  55                ((uint64_t)data[2] << 16) |
  56                ((uint64_t)data[1] <<  8) |
  57                ((uint64_t)data[0]);
  58 }
  59
  60 #endif