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Diffstat (limited to '')
| -rw-r--r-- | include/osl/endian.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/include/osl/endian.h b/include/osl/endian.h new file mode 100644 index 000000000..fb9b514c1 --- /dev/null +++ b/include/osl/endian.h @@ -0,0 +1,155 @@ +/* -*- 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 . + */ + +/* + * This file is part of LibreOffice published API. + */ + +#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 || defined _M_ARM64 +# define OSL_LITENDIAN +# endif +#elif defined ANDROID || defined LINUX || defined HAIKU +# include <endian.h> +# if __BYTE_ORDER == __LITTLE_ENDIAN +# define OSL_LITENDIAN +# elif __BYTE_ORDER == __BIG_ENDIAN +# define OSL_BIGENDIAN +# endif +#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 __sun +# include <sys/isa_defs.h> +# if defined _LITTLE_ENDIAN +# define OSL_LITENDIAN +# elif defined _BIG_ENDIAN +# define OSL_BIGENDIAN +# endif +#elif defined EMSCRIPTEN +# define OSL_LITENDIAN +#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: */ |