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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#ifndef INCLUDED_OSL_ENDIAN_H
#define INCLUDED_OSL_ENDIAN_H
#include <sal/types.h>
#ifdef __cplusplus
extern "C" {
#endif
/** Define the platform byte order as OSL_BIGENDIAN or OSL_LITENDIAN.
*/
#if defined _WIN32
# if defined _M_ALPHA || defined _M_AMD64 || defined _M_IX86 \
|| defined _M_MRX000 || defined _M_PPC
# define OSL_LITENDIAN
# endif
#elif defined ANDROID || defined LINUX
# include <endian.h>
# if __BYTE_ORDER == __LITTLE_ENDIAN
# define OSL_LITENDIAN
# elif __BYTE_ORDER == __BIG_ENDIAN
# define OSL_BIGENDIAN
# endif
#elif defined EMSCRIPTEN
# define OSL_LITENDIAN
#elif defined IOS || defined MACOSX || defined NETBSD
# include <machine/endian.h>
# if BYTE_ORDER == LITTLE_ENDIAN
# define OSL_LITENDIAN
# elif BYTE_ORDER == BIG_ENDIAN
# define OSL_BIGENDIAN
# endif
#elif defined FREEBSD
# include <sys/param.h>
# include <machine/endian.h>
# if defined _LITTLE_ENDIAN
# define OSL_LITENDIAN
# elif defined _BIG_ENDIAN
# define OSL_BIGENDIAN
# endif
#elif defined AIX
# include <sys/machine.h>
# if BYTE_ORDER == LITTLE_ENDIAN
# define OSL_LITENDIAN
# elif BYTE_ORDER == BIG_ENDIAN
# define OSL_BIGENDIAN
# endif
#elif defined SOLARIS
# include <sys/isa_defs.h>
# if defined _LITTLE_ENDIAN
# define OSL_LITENDIAN
# elif defined _BIG_ENDIAN
# define OSL_BIGENDIAN
# endif
#else
# error "Target platform not specified !"
#endif
#if defined OSL_LITENDIAN == defined OSL_BIGENDIAN
# error undetermined endianness
#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)((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 // INCLUDED_OSL_ENDIAN_H
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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