pulseaudio/polyp/endianmacros.h

#ifndef fooendianmacroshfoo
#define fooendianmacroshfoo

/* $Id$ */

/***
  This file is part of polypaudio.
 
  polypaudio is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published
  by the Free Software Foundation; either version 2 of the License,
  or (at your option) any later version.
 
  polypaudio is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public License
  along with polypaudio; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  USA.
***/

#include <inttypes.h>

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#define INT16_SWAP(x) ((int16_t)(((int16_t) x >> 8) | ((int16_t) x << 8)))
#define UINT16_SWAP(x) ((uint16_t)(((uint16_t) x >> 8) | ((uint16_t) x << 8)))
#define INT32_SWAP(x) ((int32_t)(((int32_t) x >> 24) | ((int32_t) x << 24) | (((int32_t) x & 0xFF00) << 16) | (((int32_t) x) >> 16) & 0xFF00))
#define UINT32_SWAP(x) ((uint32_t)(((uint32_t) x >> 24) | ((uint32_t) x << 24) | (((uint32_t) x & 0xFF00) << 16) | ((((uint32_t) x) >> 16) & 0xFF00)))

#ifdef WORDS_BIGENDIAN
 #define INT16_FROM_LE(x) INT16_SWAP(x)
 #define INT16_FROM_BE(x) ((int16_t)(x))

 #define INT16_TO_LE(x) INT16_SWAP(x)
 #define INT16_TO_BE(x) ((int16_t)(x))

 #define UINT16_FROM_LE(x) UINT16_SWAP(x)
 #define UINT16_FROM_BE(x) ((uint16_t)(x))

 #define INT32_FROM_LE(x) INT32_SWAP(x)
 #define INT32_FROM_BE(x) ((int32_t)(x))

 #define UINT32_FROM_LE(x) UINT32_SWAP(x)
 #define UINT32_FROM_BE(x) ((uint32_t)(x))

 #define UINT32_TO_LE(x) UINT32_SWAP(x)
 #define UINT32_TO_BE(x) ((uint32_t)(x))
#else
 #define INT16_FROM_LE(x) ((int16_t)(x))
 #define INT16_FROM_BE(x) INT16_SWAP(x)

 #define INT16_TO_LE(x) ((int16_t)(x))
 #define INT16_TO_BE(x) INT16_SWAP(x)

 #define UINT16_FROM_LE(x) ((uint16_t)(x))
 #define UINT16_FROM_BE(x) UINT16_SWAP(x)

 #define INT32_FROM_LE(x) ((int32_t)(x))
 #define INT32_FROM_BE(x) INT32_SWAP(x)

 #define UINT32_FROM_LE(x) ((uint32_t)(x))
 #define UINT32_FROM_BE(x) UINT32_SWAP(x)

 #define UINT32_TO_LE(x) ((uint32_t)(x))
 #define UINT32_TO_BE(x) UINT32_SWAP(x)
#endif

#endif