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// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 2005,2006,2007 Simon Howard
//
// This program 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; either version 2
// of the License, or (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
//
// DESCRIPTION:
// Endianess handling, swapping 16bit and 32bit.
//
//-----------------------------------------------------------------------------
#ifndef __I_SWAP__
#define __I_SWAP__
#include "SDL_endian.h"
// Endianess handling.
// WAD files are stored little endian.
// Just use SDL's endianness swapping functions.
// These are deliberately cast to signed values; this is the behaviour
// of the macros in the original source and some code relies on it.
#define SHORT(x) ((signed short) SDL_SwapLE16(x))
#define LONG(x) ((signed long) SDL_SwapLE32(x))
// Defines for checking the endianness of the system.
#if SDL_BYTEORDER == SYS_LIL_ENDIAN
#define SYS_LITTLE_ENDIAN
#elif SDL_BYTEORDER == SYS_BIG_ENDIAN
#define SYS_BIG_ENDIAN
#endif
#endif
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