source: OGRE/trunk/ogrenew/PlatformManagers/SDL/src/OgreSDLTimer.cpp @ 692

Revision 692, 2.2 KB checked in by mattausch, 19 years ago (diff)

adding ogre 1.2 and dependencies

Line 
1/*
2-----------------------------------------------------------------------------
3This source file is part of OGRE
4    (Object-oriented Graphics Rendering Engine)
5For the latest info, see http://www.ogre3d.org/
6
7Copyright (c) 2000-2005 The OGRE Team
8Also see acknowledgements in Readme.html
9
10This program is free software; you can redistribute it and/or modify it under
11the terms of the GNU Lesser General Public License as published by the Free Software
12Foundation; either version 2 of the License, or (at your option) any later
13version.
14
15This program is distributed in the hope that it will be useful, but WITHOUT
16ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
18
19You should have received a copy of the GNU Lesser General Public License along with
20this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21Place - Suite 330, Boston, MA 02111-1307, USA, or go to
22http://www.gnu.org/copyleft/lesser.txt.
23-----------------------------------------------------------------------------
24*/
25
26#include "OgreSDLTimer.h"
27#include <sys/time.h>
28
29namespace Ogre {
30   
31#ifdef _WIN32
32#define WIN32_LEAN_AND_MEAN
33#include <windows.h>
34void gettimeofday(struct timeval* p, void* tz /* IGNORED */){
35     union {
36       long long ns100; /*time since 1 Jan 1601 in 100ns units */
37       FILETIME ft;
38     } _now;
39                                                                               
40     GetSystemTimeAsFileTime( &(_now.ft) );
41     p->tv_usec=(long)((_now.ns100 / 10LL) % 1000000LL );
42     p->tv_sec= (long)((_now.ns100-(116444736000000000LL))/10000000LL);
43     return;
44}
45#endif
46
47   
48        void SDLTimer::reset()
49        {
50            Timer::reset();
51                gettimeofday(&start, NULL);
52        }
53
54        unsigned long SDLTimer::getMilliseconds()
55        {
56            struct timeval now;
57                gettimeofday(&now, NULL);
58            return (now.tv_sec-start.tv_sec)*1000+(now.tv_usec-start.tv_usec)/1000;
59        }
60
61        unsigned long SDLTimer::getMicroseconds()
62        {
63            struct timeval now;
64                gettimeofday(&now, NULL);
65            return (now.tv_sec-start.tv_sec)*1000000+(now.tv_usec-start.tv_usec);
66        }       
67}
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