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Improved FPS counter with averaging

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This commit is contained in:
sippeangelo
2015-10-02 19:01:08 +02:00
parent b38580f468
commit a8b0631379
1 changed files with 9 additions and 8 deletions
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include/Game/FPSCounter.h
+9 -8
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@@ -15,25 +15,26 @@ public:
FPSCounter(Frame* parent, std::string name) FPSCounter(Frame* parent, std::string name)
: Frame(parent, name) : Frame(parent, name)
{ {
m_FrameTimes.resize(m_MaxSamples);
m_Numbers = new GUI::NumberFrame(this, "FPSCounterNumberFrame"); m_Numbers = new GUI::NumberFrame(this, "FPSCounterNumberFrame");
} }
virtual void Update(double dt) virtual void Update(double dt)
{ {
m_NumFrames++; m_FrameTimes[m_CurrentFrame % m_MaxSamples] = dt;
m_Accum += dt; double sum = std::accumulate(m_FrameTimes.begin(), m_FrameTimes.end(), 0.0);
sum /= std::min(m_CurrentFrame, m_MaxSamples);
m_Numbers->SetNumber(std::round(1.0 / sum));
m_Numbers->SetNumber(1.0/(m_Accum/m_NumFrames)); m_CurrentFrame++;
if (m_NumFrames % 20) {
//LOG_INFO("FPS: %f", 1.0/(m_Accum/m_NumFrames));
}
} }
private: private:
NumberFrame* m_Numbers = nullptr; NumberFrame* m_Numbers = nullptr;
double m_Accum = 0.0; int m_MaxSamples = 100;
int m_NumFrames = 0; int m_CurrentFrame = 0;
std::vector<double> m_FrameTimes;
}; };
} }