FUNCTIONS

1. SDL_ReadLE16
2. SDL_ReadBE16
3. SDL_ReadLE32
4. SDL_ReadBE32
5. SDL_ReadLE64
6. SDL_ReadBE64
7. SDL_WriteLE16
8. SDL_WriteBE16
9. SDL_WriteLE32
10. SDL_WriteBE32
11. SDL_WriteLE64
12. SDL_WriteBE64

   1 /*
   2     SDL - Simple DirectMedia Layer
   3     Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
   4 
   5     This library is free software; you can redistribute it and/or
   6     modify it under the terms of the GNU Library General Public
   7     License as published by the Free Software Foundation; either
   8     version 2 of the License, or (at your option) any later version.
   9 
  10     This library is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13     Library General Public License for more details.
  14 
  15     You should have received a copy of the GNU Library General Public
  16     License along with this library; if not, write to the Free
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18 
  19     Sam Lantinga
  20     slouken@devolution.com
  21 */
  23 #ifdef SAVE_RCSID
  24 static char rcsid =
  25  "@(#) $Id: SDL_endian.c,v 1.2.2.2 2001/02/10 07:20:04 hercules Exp $";
  26 #endif
  28 /* Functions for dynamically reading and writing endian-specific values */
  30 #include "SDL_endian.h"
  32 Uint16 SDL_ReadLE16 (SDL_RWops *src)
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  33 {
  34         Uint16 value;
SDL_RWread(src, &value, (sizeof value), 1);
  37         return(SDL_SwapLE16(value));
  38 }
  39 Uint16 SDL_ReadBE16 (SDL_RWops *src)
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  40 {
  41         Uint16 value;
SDL_RWread(src, &value, (sizeof value), 1);
  44         return(SDL_SwapBE16(value));
  45 }
  46 Uint32 SDL_ReadLE32 (SDL_RWops *src)
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  47 {
  48         Uint32 value;
SDL_RWread(src, &value, (sizeof value), 1);
  51         return(SDL_SwapLE32(value));
  52 }
  53 Uint32 SDL_ReadBE32 (SDL_RWops *src)
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  54 {
  55         Uint32 value;
SDL_RWread(src, &value, (sizeof value), 1);
  58         return(SDL_SwapBE32(value));
  59 }
  60 Uint64 SDL_ReadLE64 (SDL_RWops *src)
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  61 {
  62         Uint64 value;
SDL_RWread(src, &value, (sizeof value), 1);
  65         return(SDL_SwapLE64(value));
  66 }
  67 Uint64 SDL_ReadBE64 (SDL_RWops *src)
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  68 {
  69         Uint64 value;
SDL_RWread(src, &value, (sizeof value), 1);
  72         return(SDL_SwapBE64(value));
  73 }
  75 int SDL_WriteLE16 (SDL_RWops *dst, Uint16 value)
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  76 {
  77         value = SDL_SwapLE16(value);
  78         return(SDL_RWwrite(dst, &value, (sizeof value), 1));
  79 }
  80 int SDL_WriteBE16 (SDL_RWops *dst, Uint16 value)
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  81 {
  82         value = SDL_SwapBE16(value);
  83         return(SDL_RWwrite(dst, &value, (sizeof value), 1));
  84 }
  85 int SDL_WriteLE32 (SDL_RWops *dst, Uint32 value)
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  86 {
  87         value = SDL_SwapLE32(value);
  88         return(SDL_RWwrite(dst, &value, (sizeof value), 1));
  89 }
  90 int SDL_WriteBE32 (SDL_RWops *dst, Uint32 value)
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  91 {
  92         value = SDL_SwapBE32(value);
  93         return(SDL_RWwrite(dst, &value, (sizeof value), 1));
  94 }
  95 int SDL_WriteLE64 (SDL_RWops *dst, Uint64 value)
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  96 {
  97         value = SDL_SwapLE64(value);
  98         return(SDL_RWwrite(dst, &value, (sizeof value), 1));
  99 }
 100 int SDL_WriteBE64 (SDL_RWops *dst, Uint64 value)
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 101 {
 102         value = SDL_SwapBE64(value);
 103         return(SDL_RWwrite(dst, &value, (sizeof value), 1));
 104 }