endianess.cpp

这是一款2d游戏引擎

/*  $Id: endianess.cpp,v 1.8 2003/07/20 22:30:53 grumbel Exp $
**
**  ClanLib Game SDK
**  Copyright (C) 2003  The ClanLib Team
**  For a total list of contributers see the file CREDITS.
**
**  This library is free software; you can redistribute it and/or
**  modify it under the terms of the GNU Lesser General Public
**  License as published by the Free Software Foundation; either
**  version 2.1 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
**  Lesser General Public License for more details.
**
**  You should have received a copy of the GNU Lesser General Public
**  License along with this library; if not, write to the Free Software
**  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
**
*/

#include "Core/precomp.h"

#include "API/Core/IOData/cl_endian.h"

void CL_Endian::swap(void *data, int type_size, int total_times)
{
	if (type_size == 1) return;

	unsigned char *d = (unsigned char *) data;

	for (int j=0; j<total_times; j++)
	{
		for (int i=0; i<type_size/2; i++)
		{
			unsigned char a = d[i];
			d[i] = d[type_size-1-i];
			d[type_size-1-i] = a;
		}
		
		d += type_size;
	}
}

bool CL_Endian::is_system_big()
{
#ifdef USE_BIG_ENDIAN
	return true;
#else
	return false;
#endif
}

bool CL_Endian::is_system_64bit()
{
	if (sizeof(int*) == 8) return true;
	return false;
}