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#ifndef fooendianmacroshfoo
#define fooendianmacroshfoo
/***
This file is part of PulseAudio.
Copyright 2004-2006 Lennart Poettering
Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
PulseAudio 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.
PulseAudio 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 PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#include <inttypes.h>
#ifndef PACKAGE
#error "Please include config.h before including this file!"
#endif
#ifdef HAVE_BYTESWAP_H
#include <byteswap.h>
#endif
#ifdef HAVE_BYTESWAP_H
#define PA_INT16_SWAP(x) ((int16_t) bswap_16((uint16_t) x))
#define PA_UINT16_SWAP(x) ((uint16_t) bswap_16((uint16_t) x))
#define PA_INT32_SWAP(x) ((int32_t) bswap_32((uint32_t) x))
#define PA_UINT32_SWAP(x) ((uint32_t) bswap_32((uint32_t) x))
#else
#define PA_INT16_SWAP(x) ( (int16_t) ( ((uint16_t) (x) >> 8) | ((uint16_t) (x) << 8) ) )
#define PA_UINT16_SWAP(x) ( (uint16_t) ( ((uint16_t) (x) >> 8) | ((uint16_t) (x) << 8) ) )
#define PA_INT32_SWAP(x) ( (int32_t) ( ((uint32_t) (x) >> 24) | ((uint32_t) (x) << 24) | (((uint32_t) (x) & 0xFF00) << 8) | ((((uint32_t) (x)) >> 8) & 0xFF00) ) )
#define PA_UINT32_SWAP(x) ( (uint32_t) ( ((uint32_t) (x) >> 24) | ((uint32_t) (x) << 24) | (((uint32_t) (x) & 0xFF00) << 8) | ((((uint32_t) (x)) >> 8) & 0xFF00) ) )
#endif
static inline uint32_t PA_READ24LE(const uint8_t *p) {
return
((uint32_t) p[0] << 16) |
((uint32_t) p[1] << 8) |
((uint32_t) p[2]);
}
static inline uint32_t PA_READ24BE(const uint8_t *p) {
return
((uint32_t) p[2] << 16) |
((uint32_t) p[1] << 8) |
((uint32_t) p[0]);
}
static inline void PA_WRITE24LE(uint8_t *p, uint32_t u) {
p[0] = (uint8_t) (u >> 16);
p[1] = (uint8_t) (u >> 8);
p[2] = (uint8_t) u;
}
static inline void PA_WRITE24BE(uint8_t *p, uint32_t u) {
p[2] = (uint8_t) (u >> 16);
p[1] = (uint8_t) (u >> 8);
p[0] = (uint8_t) u;
}
static inline float PA_FLOAT32_SWAP(float x) {
union {
float f;
uint32_t u;
} t;
t.f = x;
t.u = PA_UINT32_SWAP(t.u);
return t.f;
}
#define PA_MAYBE_INT16_SWAP(c,x) ((c) ? PA_INT32_SWAP(x) : (x))
#define PA_MAYBE_UINT16_SWAP(c,x) ((c) ? PA_UINT32_SWAP(x) : (x))
#define PA_MAYBE_INT32_SWAP(c,x) ((c) ? PA_INT32_SWAP(x) : (x))
#define PA_MAYBE_UINT32_SWAP(c,x) ((c) ? PA_UINT32_SWAP(x) : (x))
#define PA_MAYBE_FLOAT32_SWAP(c,x) ((c) ? PA_FLOAT32_SWAP(x) : (x))
#ifdef WORDS_BIGENDIAN
#define PA_INT16_FROM_LE(x) PA_INT16_SWAP(x)
#define PA_INT16_FROM_BE(x) ((int16_t)(x))
#define PA_INT16_TO_LE(x) PA_INT16_SWAP(x)
#define PA_INT16_TO_BE(x) ((int16_t)(x))
#define PA_UINT16_FROM_LE(x) PA_UINT16_SWAP(x)
#define PA_UINT16_FROM_BE(x) ((uint16_t)(x))
#define PA_UINT16_TO_LE(x) PA_UINT16_SWAP(x)
#define PA_UINT16_TO_BE(x) ((uint16_t)(x))
#define PA_INT32_FROM_LE(x) PA_INT32_SWAP(x)
#define PA_INT32_FROM_BE(x) ((int32_t)(x))
#define PA_INT32_TO_LE(x) PA_INT32_SWAP(x)
#define PA_INT32_TO_BE(x) ((int32_t)(x))
#define PA_UINT32_FROM_LE(x) PA_UINT32_SWAP(x)
#define PA_UINT32_FROM_BE(x) ((uint32_t)(x))
#define PA_UINT32_TO_LE(x) PA_UINT32_SWAP(x)
#define PA_UINT32_TO_BE(x) ((uint32_t)(x))
#define PA_FLOAT32_TO_LE(x) PA_FLOAT32_SWAP(x)
#define PA_FLOAT32_TO_BE(x) ((float) (x))
#define PA_READ24NE(x) PA_READ24BE(x)
#define PA_WRITE24NE(x,y) PA_WRITE24BE((x),(y))
#define PA_READ24RE(x) PA_READ24LE(x)
#define PA_WRITE24RE(x,y) PA_WRITE24LE((x),(y))
#else
#define PA_INT16_FROM_LE(x) ((int16_t)(x))
#define PA_INT16_FROM_BE(x) PA_INT16_SWAP(x)
#define PA_INT16_TO_LE(x) ((int16_t)(x))
#define PA_INT16_TO_BE(x) PA_INT16_SWAP(x)
#define PA_UINT16_FROM_LE(x) ((uint16_t)(x))
#define PA_UINT16_FROM_BE(x) PA_UINT16_SWAP(x)
#define PA_UINT16_TO_LE(x) ((uint16_t)(x))
#define PA_UINT16_TO_BE(x) PA_UINT16_SWAP(x)
#define PA_INT32_FROM_LE(x) ((int32_t)(x))
#define PA_INT32_FROM_BE(x) PA_INT32_SWAP(x)
#define PA_INT32_TO_LE(x) ((int32_t)(x))
#define PA_INT32_TO_BE(x) PA_INT32_SWAP(x)
#define PA_UINT32_FROM_LE(x) ((uint32_t)(x))
#define PA_UINT32_FROM_BE(x) PA_UINT32_SWAP(x)
#define PA_UINT32_TO_LE(x) ((uint32_t)(x))
#define PA_UINT32_TO_BE(x) PA_UINT32_SWAP(x)
#define PA_FLOAT32_TO_LE(x) ((float) (x))
#define PA_FLOAT32_TO_BE(x) PA_FLOAT32_SWAP(x)
#define PA_READ24NE(x) PA_READ24LE(x)
#define PA_WRITE24NE(x,y) PA_WRITE24LE((x),(y))
#define PA_READ24RE(x) PA_READ24BE(x)
#define PA_WRITE24RE(x,y) PA_WRITE24BE((x),(y))
#endif
#endif
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