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-rw-r--r--include/osl/endian.h149
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diff --git a/include/osl/endian.h b/include/osl/endian.h
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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 || 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
+#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: */