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SDL_endian.c
104 lines (89 loc) · 2.6 KB
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SDL_endian.c
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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@libsdl.org
*/
#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));
}