kopia lustrzana https://github.com/Jean-MarcHarvengt/MCUME
55 wiersze
1.4 KiB
C
55 wiersze
1.4 KiB
C
//
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// Copyright(C) 1993-1996 Id Software, Inc.
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// Copyright(C) 2005-2014 Simon Howard
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// DESCRIPTION:
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// Endianess handling, swapping 16bit and 32bit.
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//
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#ifndef __I_SWAP__
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#define __I_SWAP__
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#ifdef ORIGCODE
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#include "SDL_endian.h"
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// Endianess handling.
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// WAD files are stored little endian.
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// Just use SDL's endianness swapping functions.
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// These are deliberately cast to signed values; this is the behaviour
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// of the macros in the original source and some code relies on it.
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#define SHORT(x) ((signed short) SDL_SwapLE16(x))
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#define LONG(x) ((signed int) SDL_SwapLE32(x))
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// Defines for checking the endianness of the system.
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#if SDL_BYTEORDER == SYS_LIL_ENDIAN
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#define SYS_LITTLE_ENDIAN
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#elif SDL_BYTEORDER == SYS_BIG_ENDIAN
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#define SYS_BIG_ENDIAN
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#endif
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#else
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#define SHORT(x) ((signed short) (x))
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#define LONG(x) ((signed int) (x))
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#define SYS_LITTLE_ENDIAN
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#endif
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#endif
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