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renderdoc/renderdoc/common/timing.h
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/******************************************************************************
* The MIT License (MIT)
*
* Copyright (c) 2019-2022 Baldur Karlsson
* Copyright (c) 2014 Crytek
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
#pragma once
#include <stdarg.h>
#include <stdint.h>
#include "os/os_specific.h"
#include "common.h"
class PerformanceTimer
{
public:
PerformanceTimer() : m_CounterFrequency(Timing::GetTickFrequency()) { Restart(); }
double GetMilliseconds() const
{
return double(Timing::GetTick() - m_Start) / m_CounterFrequency;
}
double GetMicroseconds() const
{
return (double(Timing::GetTick() - m_Start) * 1000.0) / m_CounterFrequency;
}
void Restart() { m_Start = Timing::GetTick(); }
private:
double m_CounterFrequency;
uint64_t m_Start;
};
class FrameTimer
{
public:
void InitTimers()
{
m_HighPrecisionTimer.Restart();
m_TotalTime = m_AvgFrametime = m_MinFrametime = m_MaxFrametime = 0.0;
}
void UpdateTimers()
{
m_FrameTimes.push_back(m_HighPrecisionTimer.GetMilliseconds());
m_TotalTime += m_FrameTimes.back();
m_HighPrecisionTimer.Restart();
// update every second
if(m_TotalTime > 1000.0)
{
m_MinFrametime = 10000.0;
m_MaxFrametime = 0.0;
m_AvgFrametime = 0.0;
m_TotalTime = 0.0;
for(size_t i = 0; i < m_FrameTimes.size(); i++)
{
m_AvgFrametime += m_FrameTimes[i];
if(m_FrameTimes[i] < m_MinFrametime)
m_MinFrametime = m_FrameTimes[i];
if(m_FrameTimes[i] > m_MaxFrametime)
m_MaxFrametime = m_FrameTimes[i];
}
m_AvgFrametime /= double(m_FrameTimes.size());
m_FrameTimes.clear();
}
}
double GetAvgFrameTime() const { return m_AvgFrametime; }
double GetMinFrameTime() const { return m_MinFrametime; }
double GetMaxFrameTime() const { return m_MaxFrametime; }
private:
PerformanceTimer m_HighPrecisionTimer;
rdcarray<double> m_FrameTimes;
double m_TotalTime;
double m_AvgFrametime;
double m_MinFrametime;
double m_MaxFrametime;
};
class ScopedTimer
{
public:
ScopedTimer(const char *file, unsigned int line, const rdcstr &msg)
{
m_File = file;
m_Line = line;
m_Message = msg;
}
~ScopedTimer()
{
rdclog_direct(FILL_AUTO_VALUE, FILL_AUTO_VALUE, LogType::Comment, RDCLOG_PROJECT, m_File,
m_Line, "Timer %s - %.3lf ms", m_Message.c_str(), m_Timer.GetMilliseconds());
}
private:
const char *m_File;
unsigned int m_Line;
rdcstr m_Message;
PerformanceTimer m_Timer;
};
#define SCOPED_TIMER(...) \
ScopedTimer CONCAT(timer, __LINE__)(__FILE__, __LINE__, StringFormat::Fmt(__VA_ARGS__));