Martin Quinson <[EMAIL PROTECTED]> writes:
> Could you propose a clean machdep.h file?
OK.
--
Falk
/*
* Copyright (C) 2002, 2003 by the Widelands Development Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef MACHDEP_H
#define MACHDEP_H
#include <SDL_endian.h>
#include "types.h"
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
#define Little16(x) (x)
#define Little32(x) (x)
#define LittleFloat(x) (x)
#define Big16(x) Swap16((x))
#define Big32(x) Swap32((x))
#define BigFloat(x) SwapFloat((x))
#else
#define Little16(x) Swap16((x))
#define Little32(x) Swap32((x))
#define LittleFloat(x) SwapFloat((x))
#define Big16(x) (x)
#define Big32(x) (x)
#define BigFloat(x) (x)
#endif
inline short Swap16(short x) {
short s;
((uchar *)&s)[0] = ((uchar *)&x)[1];
((uchar *)&s)[1] = ((uchar *)&x)[0];
return s;
}
inline int Swap32(int x) {
int s;
((uchar *)&s)[0] = ((uchar *)&x)[3];
((uchar *)&s)[1] = ((uchar *)&x)[2];
((uchar *)&s)[2] = ((uchar *)&x)[1];
((uchar *)&s)[3] = ((uchar *)&x)[0];
return s;
}
inline float SwapFloat(float x)
{
float s;
((uchar *)&s)[0] = ((uchar *)&x)[3];
((uchar *)&s)[1] = ((uchar *)&x)[2];
((uchar *)&s)[2] = ((uchar *)&x)[1];
((uchar *)&s)[3] = ((uchar *)&x)[0];
return s;
}
inline char Deref8(const void* ptr)
{
return *reinterpret_cast<const char*>(ptr);
}
inline short Deref16(const void* ptr)
{
short r;
memcpy(&r, ptr, sizeof(r));
return r;
}
inline int Deref32(const void* ptr)
{
int r;
memcpy(&r, ptr, sizeof(r));
return r;
}
inline float DerefFloat(const void* ptr)
{
float r;
memcpy(&r, ptr, sizeof(r));
return r;
}
#endif
