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time.cpp
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time.cpp
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/*
TIME.CPP v0.01
Used for profiling and benchmarking.
Copyright (c) 2006 Francesco Orsenigo <francesco.orsenigo@gmail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <sys/time.h>
#include "main.h"
/*=============================================================================
* GET
*/
unsigned long timeGet()
{
struct timeval now;
gettimeofday(&now, 0);
return now.tv_sec*1000 + now.tv_usec/1000;
}
/*=============================================================================
* CLASS: TIMER
*/
void timerC::StartFrame() { Start(); Frames++; }
void timerC::Start() { TStart = timeGet(); }
void timerC::Stop() { Eta += timeGet() - TStart; }
float timerC::FPS()
{
float r = Frames*1000./Eta;
if(Frames > 10) Frames = 0;
return r;
}
timerC::timerC(char* name)
{
Name = name;
Frames = 0;
Eta = 0;
}
timerC::~timerC()
{
if(Eta)
if(Frames) printf("%10s timer: %8.1ffps (if only this was performed)\n", Name, FPS());
else printf("%10s timer: %6dms\n", Name, Eta);
}
/*=============================================================================
* TEMPO
*/
bool tempoC::operator()()
{
unsigned long t = timeGet();
if(t - LastTime < Interval) return false;
LastTime = t;
return true;
}
tempoC::tempoC(long interval)
{
LastTime = 0;
Interval = interval;
}
//EOF =========================================================================