SDL_endian.c
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:3k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- 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: SDL_endian.c,v 1.4 2002/04/22 21:38:02 wmay Exp $";
- #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));
- }