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/* Copyright (C) 2009 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. 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.
*
* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#include "precompiled.h"
#include "HighResTimer.h"
// TODO: Better accuracy and reliability, if necessary.
#ifdef __WXMSW__
HighResTimer::HighResTimer()
{
LARGE_INTEGER freq;
BOOL ok = QueryPerformanceFrequency(&freq);
if (! ok)
{
wxLogError(_("QPF failed!"));
}
else
{
m_TickLength = freq.QuadPart;
}
}
double HighResTimer::GetTime()
{
LARGE_INTEGER count;
BOOL ok = QueryPerformanceCounter(&count);
if (! ok)
{
wxLogError(_("QPC failed!"));
return 0.0;
}
return (double)count.QuadPart / (double)m_TickLength.GetValue();
}
#else // not __WXMSW__ :
#include <sys/time.h>
HighResTimer::HighResTimer()
{
}
double HighResTimer::GetTime()
{
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec+(tv.tv_usec/1000000.0);
}
#endif
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