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Diffstat (limited to 'code/unix/SDL12/include/SDL_endian.h')
| -rw-r--r-- | code/unix/SDL12/include/SDL_endian.h | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/code/unix/SDL12/include/SDL_endian.h b/code/unix/SDL12/include/SDL_endian.h deleted file mode 100644 index b277afd..0000000 --- a/code/unix/SDL12/include/SDL_endian.h +++ /dev/null @@ -1,150 +0,0 @@ -/* - 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.h,v 1.5 2002/04/11 14:35:13 slouken Exp $"; -#endif - -/* Functions for reading and writing endian-specific values */ - -#ifndef _SDL_endian_h -#define _SDL_endian_h - -/* These functions read and write data of the specified endianness, - dynamically translating to the host machine endianness. - - e.g.: If you want to read a 16 bit value on big-endian machine from - an open file containing little endian values, you would use: - value = SDL_ReadLE16(rp); - Note that the read/write functions use SDL_RWops pointers - instead of FILE pointers. This allows you to read and write - endian values from large chunks of memory as well as files - and other data sources. -*/ - -#include <stdio.h> - -#include "SDL_types.h" -#include "SDL_rwops.h" -#include "SDL_byteorder.h" - -#include "begin_code.h" -/* Set up for C function definitions, even when using C++ */ -#ifdef __cplusplus -extern "C" { -#endif - -/* The macros used to swap values */ -/* Try to use superfast macros on systems that support them */ -#ifdef linux -#include <asm/byteorder.h> -#ifdef __arch__swab16 -#define SDL_Swap16 __arch__swab16 -#endif -#ifdef __arch__swab32 -#define SDL_Swap32 __arch__swab32 -#endif -#endif /* linux */ -/* Use inline functions for compilers that support them, and static - functions for those that do not. Because these functions become - static for compilers that do not support inline functions, this - header should only be included in files that actually use them. -*/ -#ifndef SDL_Swap16 -static __inline__ Uint16 SDL_Swap16(Uint16 D) { - return((D<<8)|(D>>8)); -} -#endif -#ifndef SDL_Swap32 -static __inline__ Uint32 SDL_Swap32(Uint32 D) { - return((D<<24)|((D<<8)&0x00FF0000)|((D>>8)&0x0000FF00)|(D>>24)); -} -#endif -#ifdef SDL_HAS_64BIT_TYPE -#ifndef SDL_Swap64 -static __inline__ Uint64 SDL_Swap64(Uint64 val) { - Uint32 hi, lo; - - /* Separate into high and low 32-bit values and swap them */ - lo = (Uint32)(val&0xFFFFFFFF); - val >>= 32; - hi = (Uint32)(val&0xFFFFFFFF); - val = SDL_Swap32(lo); - val <<= 32; - val |= SDL_Swap32(hi); - return(val); -} -#endif -#else -#ifndef SDL_Swap64 -/* This is mainly to keep compilers from complaining in SDL code. - If there is no real 64-bit datatype, then compilers will complain about - the fake 64-bit datatype that SDL provides when it compiles user code. -*/ -#define SDL_Swap64(X) (X) -#endif -#endif /* SDL_HAS_64BIT_TYPE */ - - -/* Byteswap item from the specified endianness to the native endianness */ -#if SDL_BYTEORDER == SDL_LIL_ENDIAN -#define SDL_SwapLE16(X) (X) -#define SDL_SwapLE32(X) (X) -#define SDL_SwapLE64(X) (X) -#define SDL_SwapBE16(X) SDL_Swap16(X) -#define SDL_SwapBE32(X) SDL_Swap32(X) -#define SDL_SwapBE64(X) SDL_Swap64(X) -#else -#define SDL_SwapLE16(X) SDL_Swap16(X) -#define SDL_SwapLE32(X) SDL_Swap32(X) -#define SDL_SwapLE64(X) SDL_Swap64(X) -#define SDL_SwapBE16(X) (X) -#define SDL_SwapBE32(X) (X) -#define SDL_SwapBE64(X) (X) -#endif - -/* Read an item of the specified endianness and return in native format */ -extern DECLSPEC Uint16 SDLCALL SDL_ReadLE16(SDL_RWops *src); -extern DECLSPEC Uint16 SDLCALL SDL_ReadBE16(SDL_RWops *src); -extern DECLSPEC Uint32 SDLCALL SDL_ReadLE32(SDL_RWops *src); -extern DECLSPEC Uint32 SDLCALL SDL_ReadBE32(SDL_RWops *src); -extern DECLSPEC Uint64 SDLCALL SDL_ReadLE64(SDL_RWops *src); -extern DECLSPEC Uint64 SDLCALL SDL_ReadBE64(SDL_RWops *src); - -/* Write an item of native format to the specified endianness */ -extern DECLSPEC int SDLCALL SDL_WriteLE16(SDL_RWops *dst, Uint16 value); -extern DECLSPEC int SDLCALL SDL_WriteBE16(SDL_RWops *dst, Uint16 value); -extern DECLSPEC int SDLCALL SDL_WriteLE32(SDL_RWops *dst, Uint32 value); -extern DECLSPEC int SDLCALL SDL_WriteBE32(SDL_RWops *dst, Uint32 value); -extern DECLSPEC int SDLCALL SDL_WriteLE64(SDL_RWops *dst, Uint64 value); -extern DECLSPEC int SDLCALL SDL_WriteBE64(SDL_RWops *dst, Uint64 value); - - -/* Ends C function definitions when using C++ */ -#ifdef __cplusplus -} -#endif -#include "close_code.h" - -#endif /* _SDL_endian_h */ - |