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Location: cpp/openttd-patchpack/source/src/core/endian_func.hpp - annotation
r15345:889addb8230c
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text/x-c++hdr
(svn r19997) -Codechange: Unify order of ship and plane icon in stationlist and stationsigns with the rest of the game (frosch)
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/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file endian_func.hpp Function to handling different endian machines. */
#ifndef ENDIAN_FUNC_HPP
#define ENDIAN_FUNC_HPP
#include "endian_type.hpp"
#include "bitmath_func.hpp"
/* Setup alignment and conversion macros */
#if TTD_ENDIAN == TTD_BIG_ENDIAN
#define FROM_BE16(x) (x)
#define FROM_BE32(x) (x)
#define TO_BE16(x) (x)
#define TO_BE32(x) (x)
#define TO_BE32X(x) (x)
#define FROM_LE16(x) BSWAP16(x)
#define FROM_LE32(x) BSWAP32(x)
#define TO_LE16(x) BSWAP16(x)
#define TO_LE32(x) BSWAP32(x)
#define TO_LE32X(x) BSWAP32(x)
#else
#define FROM_BE16(x) BSWAP16(x)
#define FROM_BE32(x) BSWAP32(x)
#define TO_BE16(x) BSWAP16(x)
#define TO_BE32(x) BSWAP32(x)
#define TO_BE32X(x) BSWAP32(x)
#define FROM_LE16(x) (x)
#define FROM_LE32(x) (x)
#define TO_LE16(x) (x)
#define TO_LE32(x) (x)
#define TO_LE32X(x) (x)
#endif /* TTD_ENDIAN == TTD_BIG_ENDIAN */
static FORCEINLINE uint16 ReadLE16Aligned(const void *x)
{
return FROM_LE16(*(const uint16*)x);
}
static FORCEINLINE uint16 ReadLE16Unaligned(const void *x)
{
#if OTTD_ALIGNMENT == 1
return ((const byte*)x)[0] | ((const byte*)x)[1] << 8;
#else
return FROM_LE16(*(const uint16*)x);
#endif /* OTTD_ALIGNMENT == 1 */
}
#endif /* ENDIAN_FUNC_HPP */
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