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/**************************************************************
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
#ifndef _OSL_ENDIAN_H_
#define _OSL_ENDIAN_H_
#include <sal/types.h>
#ifdef __cplusplus
extern "C" {
#endif
/** Determine the platform byte order as _BIG_ENDIAN, _LITTLE_ENDIAN, ...
*/
#ifdef _WIN32
# if defined(_M_IX86)
# define _LITTLE_ENDIAN
# elif defined(_M_MRX000)
# define _LITTLE_ENDIAN
# elif defined(_M_ALPHA)
# define _LITTLE_ENDIAN
# elif defined(_M_PPC)
# define _LITTLE_ENDIAN
# endif
#endif
#ifdef LINUX
# include <endian.h>
# if __BYTE_ORDER == __LITTLE_ENDIAN
# ifndef _LITTLE_ENDIAN
# define _LITTLE_ENDIAN
# endif
# elif __BYTE_ORDER == __BIG_ENDIAN
# ifndef _BIG_ENDIAN
# define _BIG_ENDIAN
# endif
# elif __BYTE_ORDER == __PDP_ENDIAN
# define _PDP_ENDIAN
# endif
#endif
#ifdef NETBSD
# include <machine/endian.h>
# if BYTE_ORDER == LITTLE_ENDIAN
# define _LITTLE_ENDIAN
# elif BYTE_ORDER == BIG_ENDIAN
# define _BIG_ENDIAN
# elif BYTE_ORDER == PDP_ENDIAN
# define _PDP_ENDIAN
# endif
#endif
#ifdef FREEBSD
# include <sys/param.h>
# include <machine/endian.h>
#if __FreeBSD_version < 500000
# if BYTE_ORDER == LITTLE_ENDIAN
# define _LITTLE_ENDIAN
# elif BYTE_ORDER == BIG_ENDIAN
# define _BIG_ENDIAN
# elif BYTE_ORDER == PDP_ENDIAN
# define _PDP_ENDIAN
# endif
#endif
#endif
#ifdef SCO
# include <sys/types.h>
# include <sys/byteorder.h>
# if BYTE_ORDER == LITTLE_ENDIAN
# define _LITTLE_ENDIAN
# elif BYTE_ORDER == BIG_ENDIAN
# define _BIG_ENDIAN
# elif BYTE_ORDER == PDP_ENDIAN
# define _PDP_ENDIAN
# endif
#endif
#ifdef AIX
# include <sys/machine.h>
# if BYTE_ORDER == LITTLE_ENDIAN
# define _LITTLE_ENDIAN
# elif BYTE_ORDER == BIG_ENDIAN
# define _BIG_ENDIAN
# elif BYTE_ORDER == PDP_ENDIAN
# define _PDP_ENDIAN
# endif
#endif
#ifdef HPUX
# include <machine/param.h>
#endif
#ifdef _WIN16
# define _LITTLE_ENDIAN
#endif
#ifdef OS2
# include <machine/endian.h>
#endif
#ifdef SOLARIS
# include <sys/isa_defs.h>
#endif
#ifdef MACOSX
# include <machine/endian.h>
# if BYTE_ORDER == LITTLE_ENDIAN
# ifndef _LITTLE_ENDIAN
# define _LITTLE_ENDIAN
# endif
# elif BYTE_ORDER == BIG_ENDIAN
# ifndef _BIG_ENDIAN
# define _BIG_ENDIAN
# endif
# elif BYTE_ORDER == PDP_ENDIAN
# ifndef _PDP_ENDIAN
# define _PDP_ENDIAN
# endif
# endif
#endif
/** Check supported platform.
*/
#if !defined(_WIN32) && !defined(_WIN16) && !defined(OS2) && \
!defined(LINUX) && !defined(NETBSD) && !defined(SCO) && \
!defined(AIX) && !defined(HPUX) && \
!defined(SOLARIS) && !defined(MACOSX) && !defined(FREEBSD)
# error "Target platform not specified !"
#endif
/** Define the determined byte order as OSL_BIGENDIAN or OSL_LITENDIAN.
*/
#if defined _LITTLE_ENDIAN
# define OSL_LITENDIAN
#elif defined _BIG_ENDIAN
# define OSL_BIGENDIAN
#else
# error undetermined endianess
#endif
/** Define macros for byte order manipulation.
*/
#ifndef OSL_MAKEBYTE
# define OSL_MAKEBYTE(nl, nh) ((sal_uInt8)(((nl) & 0x0F) | (((nh) & 0x0F) << 4)))
#endif
#ifndef OSL_LONIBBLE
# define OSL_LONIBBLE(b) ((sal_uInt8)((b) & 0x0F))
#endif
#ifndef OSL_HINIBBLE
# define OSL_HINIBBLE(b) ((sal_uInt8)(((b) >> 4) & 0x0F))
#endif
#ifndef OSL_MAKEWORD
# define OSL_MAKEWORD(bl, bh) ((sal_uInt16)((bl) & 0xFF) | (((sal_uInt16)(bh) & 0xFF) << 8))
#endif
#ifndef OSL_LOBYTE
# define OSL_LOBYTE(w) ((sal_uInt8)((sal_uInt16)(w) & 0xFF))
#endif
#ifndef OSL_HIBYTE
# define OSL_HIBYTE(w) ((sal_uInt8)(((sal_uInt16)(w) >> 8) & 0xFF))
#endif
#ifndef OSL_MAKEDWORD
# define OSL_MAKEDWORD(wl, wh) ((sal_uInt32)((wl) & 0xFFFF) | (((sal_uInt32)(wh) & 0xFFFF) << 16))
#endif
#ifndef OSL_LOWORD
# define OSL_LOWORD(d) ((sal_uInt16)((sal_uInt32)(d) & 0xFFFF))
#endif
#ifndef OSL_HIWORD
# define OSL_HIWORD(d) ((sal_uInt16)(((sal_uInt32)(d) >> 16) & 0xFFFF))
#endif
/** Define macros for swapping between host and network byte order.
*/
#ifdef OSL_BIGENDIAN
#ifndef OSL_NETWORD
# define OSL_NETWORD(w) (sal_uInt16)(w)
#endif
#ifndef OSL_NETDWORD
# define OSL_NETDWORD(d) (sal_uInt32)(d)
#endif
#else /* OSL_LITENDIAN */
#ifndef OSL_NETWORD
# define OSL_NETWORD(w) OSL_MAKEWORD(OSL_HIBYTE(w),OSL_LOBYTE(w))
#endif
#ifndef OSL_NETDWORD
# define OSL_NETDWORD(d) OSL_MAKEDWORD(OSL_NETWORD(OSL_HIWORD(d)),OSL_NETWORD(OSL_LOWORD(d)))
#endif
#endif /* OSL_BIGENDIAN */
/** Define macros for swapping between byte orders.
*/
#ifndef OSL_SWAPWORD
# define OSL_SWAPWORD(w) OSL_MAKEWORD(OSL_HIBYTE(w),OSL_LOBYTE(w))
#endif
#ifndef OSL_SWAPDWORD
# define OSL_SWAPDWORD(d) OSL_MAKEDWORD(OSL_SWAPWORD(OSL_HIWORD(d)),OSL_SWAPWORD(OSL_LOWORD(d)))
#endif
#ifdef __cplusplus
}
#endif
#endif /*_OSL_ENDIAN_H_ */
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