Mercurial > sdl-ios-xcode
diff src/endian/SDL_endian.c @ 0:74212992fb08
Initial revision
author | Sam Lantinga <slouken@lokigames.com> |
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date | Thu, 26 Apr 2001 16:45:43 +0000 |
parents | |
children | e8157fcb3114 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/endian/SDL_endian.c Thu Apr 26 16:45:43 2001 +0000 @@ -0,0 +1,104 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@devolution.com +*/ + +#ifdef SAVE_RCSID +static char rcsid = + "@(#) $Id$"; +#endif + +/* Functions for dynamically reading and writing endian-specific values */ + +#include "SDL_endian.h" + +Uint16 SDL_ReadLE16 (SDL_RWops *src) +{ + Uint16 value; + + SDL_RWread(src, &value, (sizeof value), 1); + return(SDL_SwapLE16(value)); +} +Uint16 SDL_ReadBE16 (SDL_RWops *src) +{ + Uint16 value; + + SDL_RWread(src, &value, (sizeof value), 1); + return(SDL_SwapBE16(value)); +} +Uint32 SDL_ReadLE32 (SDL_RWops *src) +{ + Uint32 value; + + SDL_RWread(src, &value, (sizeof value), 1); + return(SDL_SwapLE32(value)); +} +Uint32 SDL_ReadBE32 (SDL_RWops *src) +{ + Uint32 value; + + SDL_RWread(src, &value, (sizeof value), 1); + return(SDL_SwapBE32(value)); +} +Uint64 SDL_ReadLE64 (SDL_RWops *src) +{ + Uint64 value; + + SDL_RWread(src, &value, (sizeof value), 1); + return(SDL_SwapLE64(value)); +} +Uint64 SDL_ReadBE64 (SDL_RWops *src) +{ + Uint64 value; + + SDL_RWread(src, &value, (sizeof value), 1); + return(SDL_SwapBE64(value)); +} + +int SDL_WriteLE16 (SDL_RWops *dst, Uint16 value) +{ + value = SDL_SwapLE16(value); + return(SDL_RWwrite(dst, &value, (sizeof value), 1)); +} +int SDL_WriteBE16 (SDL_RWops *dst, Uint16 value) +{ + value = SDL_SwapBE16(value); + return(SDL_RWwrite(dst, &value, (sizeof value), 1)); +} +int SDL_WriteLE32 (SDL_RWops *dst, Uint32 value) +{ + value = SDL_SwapLE32(value); + return(SDL_RWwrite(dst, &value, (sizeof value), 1)); +} +int SDL_WriteBE32 (SDL_RWops *dst, Uint32 value) +{ + value = SDL_SwapBE32(value); + return(SDL_RWwrite(dst, &value, (sizeof value), 1)); +} +int SDL_WriteLE64 (SDL_RWops *dst, Uint64 value) +{ + value = SDL_SwapLE64(value); + return(SDL_RWwrite(dst, &value, (sizeof value), 1)); +} +int SDL_WriteBE64 (SDL_RWops *dst, Uint64 value) +{ + value = SDL_SwapBE64(value); + return(SDL_RWwrite(dst, &value, (sizeof value), 1)); +}