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/*
* This file is part of the Colobot: Gold Edition source code
* Copyright (C) 2001-2023, Daniel Roux, EPSITEC SA & TerranovaTeam
* http://epsitec.ch; http://colobot.info; http://github.com/colobot
*
* 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 3 of the License, 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 this program. If not, see http://gnu.org/licenses
*/
#include "common/profiler.h"
#include "common/system/system.h"
#include <cassert>
using TimeUtils::TimeStamp;
CSystemUtils* CProfiler::m_systemUtils = nullptr;
long long CProfiler::m_performanceCounters[PCNT_MAX] = {0};
long long CProfiler::m_prevPerformanceCounters[PCNT_MAX] = {0};
std::stack<TimeStamp> CProfiler::m_runningPerformanceCounters;
std::stack<PerformanceCounter> CProfiler::m_runningPerformanceCountersType;
void CProfiler::SetSystemUtils(CSystemUtils* systemUtils)
{
m_systemUtils = systemUtils;
}
void CProfiler::StartPerformanceCounter(PerformanceCounter counter)
{
if (counter == PCNT_ALL)
ResetPerformanceCounters();
TimeStamp timeStamp = m_systemUtils->GetCurrentTimeStamp();
m_runningPerformanceCounters.push(timeStamp);
m_runningPerformanceCountersType.push(counter);
}
void CProfiler::StopPerformanceCounter(PerformanceCounter counter)
{
assert(m_runningPerformanceCountersType.top() == counter);
m_runningPerformanceCountersType.pop();
TimeStamp timeStamp = m_systemUtils->GetCurrentTimeStamp();
m_performanceCounters[counter] += TimeUtils::ExactDiff(m_runningPerformanceCounters.top(), timeStamp);
m_runningPerformanceCounters.pop();
if (counter == PCNT_ALL)
SavePerformanceCounters();
}
long long CProfiler::GetPerformanceCounterTime(PerformanceCounter counter)
{
return m_prevPerformanceCounters[counter];
}
float CProfiler::GetPerformanceCounterFraction(PerformanceCounter counter)
{
return static_cast<float>(m_prevPerformanceCounters[counter]) / static_cast<float>(m_prevPerformanceCounters[PCNT_ALL]);
}
void CProfiler::ResetPerformanceCounters()
{
for (int i = 0; i < PCNT_MAX; ++i)
{
m_performanceCounters[i] = 0;
}
}
void CProfiler::SavePerformanceCounters()
{
assert(m_runningPerformanceCounters.empty());
for (int i = 0; i < PCNT_MAX; ++i)
{
m_prevPerformanceCounters[i] = m_performanceCounters[i];
}
}
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