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/*
* Copyright (C) 2007-2009 Gabest
* http://www.gabest.org
*
* 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, 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "stdafx.h"
#include "GSPerfMon.h"
GSPerfMon::GSPerfMon()
: m_frame(0)
, m_lastframe(0)
, m_count(0)
{
memset(m_counters, 0, sizeof(m_counters));
memset(m_stats, 0, sizeof(m_stats));
memset(m_total, 0, sizeof(m_total));
memset(m_begin, 0, sizeof(m_begin));
}
void GSPerfMon::Put(counter_t c, double val)
{
#ifndef DISABLE_PERF_MON
if(c == Frame)
{
#ifdef __linux__
// clock on linux will return CLOCK_PROCESS_CPUTIME_ID.
// CLOCK_THREAD_CPUTIME_ID is much more useful to measure the fps
struct timespec ts;
clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts);
uint64 now = (uint64) ts.tv_sec * (uint64) 1e6 + (uint64) ts.tv_nsec / (uint64) 1e3;
#else
clock_t now = clock();
#endif
if(m_lastframe != 0)
{
m_counters[c] += (now - m_lastframe) * 1000 / CLOCKS_PER_SEC;
}
m_lastframe = now;
m_frame++;
m_count++;
}
else
{
m_counters[c] += val;
}
#endif
}
void GSPerfMon::Update()
{
#ifndef DISABLE_PERF_MON
if(m_count > 0)
{
for(size_t i = 0; i < countof(m_counters); i++)
{
m_stats[i] = m_counters[i] / m_count;
}
m_count = 0;
}
memset(m_counters, 0, sizeof(m_counters));
#endif
}
void GSPerfMon::Start(int timer)
{
#ifndef DISABLE_PERF_MON
m_start[timer] = __rdtsc();
if(m_begin[timer] == 0)
{
m_begin[timer] = m_start[timer];
}
#endif
}
void GSPerfMon::Stop(int timer)
{
#ifndef DISABLE_PERF_MON
if(m_start[timer] > 0)
{
m_total[timer] += __rdtsc() - m_start[timer];
m_start[timer] = 0;
}
#endif
}
int GSPerfMon::CPU(int timer, bool reset)
{
int percent = (int)(100 * m_total[timer] / (__rdtsc() - m_begin[timer]));
if(reset)
{
m_begin[timer] = 0;
m_start[timer] = 0;
m_total[timer] = 0;
}
return percent;
}
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