ref: 71d013a435a6801e82279acb0678a30b526d91ad
dir: /src/i_swap.h/
// 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