mirror of
https://github.com/GreemDev/Ryujinx.git
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aec8177850
* Replace Host FPS with FIFO% * Change measurement order. Improve calculation. Now at 100% when FIFO is blocking game exectution, rather than "0". * Address feedback (1) * Remove Host FPS * FIFO rather than Fifo * Address Ac_k feedback * Rebase
180 lines
5.3 KiB
C#
180 lines
5.3 KiB
C#
using Ryujinx.Common;
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using System.Diagnostics;
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using System.Timers;
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namespace Ryujinx.HLE
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{
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public class PerformanceStatistics
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{
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private const double FrameRateWeight = 0.5;
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private const int FrameTypeGame = 0;
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private const int PercentTypeFifo = 0;
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private double[] _averageFrameRate;
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private double[] _accumulatedFrameTime;
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private double[] _previousFrameTime;
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private double[] _averagePercent;
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private double[] _accumulatedPercent;
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private double[] _percentLastEndTime;
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private double[] _percentStartTime;
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private long[] _framesRendered;
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private long[] _percentCount;
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private object[] _frameLock;
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private object[] _percentLock;
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private double _ticksToSeconds;
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private Timer _resetTimer;
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public PerformanceStatistics()
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{
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_averageFrameRate = new double[1];
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_accumulatedFrameTime = new double[1];
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_previousFrameTime = new double[1];
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_averagePercent = new double[1];
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_accumulatedPercent = new double[1];
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_percentLastEndTime = new double[1];
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_percentStartTime = new double[1];
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_framesRendered = new long[1];
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_percentCount = new long[1];
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_frameLock = new object[] { new object() };
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_percentLock = new object[] { new object() };
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_resetTimer = new Timer(1000);
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_resetTimer.Elapsed += ResetTimerElapsed;
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_resetTimer.AutoReset = true;
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_resetTimer.Start();
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_ticksToSeconds = 1.0 / PerformanceCounter.TicksPerSecond;
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}
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private void ResetTimerElapsed(object sender, ElapsedEventArgs e)
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{
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CalculateAverageFrameRate(FrameTypeGame);
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CalculateAveragePercent(PercentTypeFifo);
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}
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private void CalculateAverageFrameRate(int frameType)
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{
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double frameRate = 0;
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lock (_frameLock[frameType])
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{
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if (_accumulatedFrameTime[frameType] > 0)
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{
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frameRate = _framesRendered[frameType] / _accumulatedFrameTime[frameType];
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}
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_averageFrameRate[frameType] = LinearInterpolate(_averageFrameRate[frameType], frameRate);
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_framesRendered[frameType] = 0;
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_accumulatedFrameTime[frameType] = 0;
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}
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}
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private void CalculateAveragePercent(int percentType)
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{
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// If start time is non-zero, a percent reading is still being measured.
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// If there aren't any readings, the default should be 100% if still being measured, or 0% if not.
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double percent = (_percentStartTime[percentType] == 0) ? 0 : 100;
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lock (_percentLock[percentType])
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{
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if (_percentCount[percentType] > 0)
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{
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percent = _accumulatedPercent[percentType] / _percentCount[percentType];
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}
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_averagePercent[percentType] = percent;
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_percentCount[percentType] = 0;
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_accumulatedPercent[percentType] = 0;
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}
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}
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private double LinearInterpolate(double lhs, double rhs)
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{
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return lhs * (1.0 - FrameRateWeight) + rhs * FrameRateWeight;
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}
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public void RecordGameFrameTime()
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{
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RecordFrameTime(FrameTypeGame);
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}
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public void RecordFifoStart()
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{
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StartPercentTime(PercentTypeFifo);
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}
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public void RecordFifoEnd()
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{
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EndPercentTime(PercentTypeFifo);
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}
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private void StartPercentTime(int percentType)
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{
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double currentTime = PerformanceCounter.ElapsedTicks * _ticksToSeconds;
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_percentStartTime[percentType] = currentTime;
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}
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private void EndPercentTime(int percentType)
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{
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double currentTime = PerformanceCounter.ElapsedTicks * _ticksToSeconds;
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double elapsedTime = currentTime - _percentLastEndTime[percentType];
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double elapsedActiveTime = currentTime - _percentStartTime[percentType];
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double percentActive = (elapsedActiveTime / elapsedTime) * 100;
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lock (_percentLock[percentType])
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{
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_accumulatedPercent[percentType] += percentActive;
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_percentCount[percentType]++;
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}
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_percentLastEndTime[percentType] = currentTime;
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_percentStartTime[percentType] = 0;
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}
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private void RecordFrameTime(int frameType)
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{
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double currentFrameTime = PerformanceCounter.ElapsedTicks * _ticksToSeconds;
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double elapsedFrameTime = currentFrameTime - _previousFrameTime[frameType];
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_previousFrameTime[frameType] = currentFrameTime;
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lock (_frameLock[frameType])
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{
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_accumulatedFrameTime[frameType] += elapsedFrameTime;
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_framesRendered[frameType]++;
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}
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}
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public double GetGameFrameRate()
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{
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return _averageFrameRate[FrameTypeGame];
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}
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public double GetFifoPercent()
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{
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return _averagePercent[PercentTypeFifo];
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}
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}
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}
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