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Diffstat (limited to 'include/osl/endian.h')
| -rw-r--r-- | include/osl/endian.h | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/include/osl/endian.h b/include/osl/endian.h new file mode 100644 index 000000000000..82ec1eaca7b1 --- /dev/null +++ b/include/osl/endian.h @@ -0,0 +1,226 @@ +/* -*- 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 _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_AMD64) +# 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 +# endif +#endif + +#ifdef ANDROID +# 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 +# endif +#endif + +#ifdef NETBSD +# include <machine/endian.h> +# if BYTE_ORDER == LITTLE_ENDIAN +# undef _BIG_ENDIAN +# elif BYTE_ORDER == BIG_ENDIAN +# undef _LITTLE_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 +# endif +#endif +#endif + +#ifdef AIX +# include <sys/machine.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 +# endif +#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 +# endif +#endif + +#ifdef IOS +# 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 +# endif +#endif + +/** Check supported platform. + */ +#if !defined(_WIN32) && \ + !defined(LINUX) && !defined(NETBSD) && \ + !defined(AIX) && !defined(OPENBSD) && \ + !defined(SOLARIS) && !defined(MACOSX) && !defined(FREEBSD) && \ + !defined(DRAGONFLY) && \ + !defined(IOS) && !defined(ANDROID) +# 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_ */ + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |