Implement a simple benchmarking mode which logs FPS to a file

Very useful to compare performance between two builds, check the impact of
a configuration option, etc. FPS log is stored in User/Logs/fps.txt and is
reset each time you launch a game. Only enabled if you check the "Log FPS
to file" option in your graphics settings.

Could be improved a bit: currently logs only every 1s (so you can't really
see small variations), maybe output more infos to the fps.txt like
average/stddev (but Excel/Libreoffice/Google Docs can compute that easily
too).

1 files changed, 2 insertions, 0 deletions

diff --git a/Source/Core/VideoCommon/Src/VideoConfig.cpp b/Source/Core/VideoCommon/Src/VideoConfig.cpp
index c5628c19a1..6d240ba357 100644
--- a/Source/Core/VideoCommon/Src/VideoConfig.cpp
+++ b/Source/Core/VideoCommon/Src/VideoConfig.cpp
@@ -59,6 +59,7 @@ void VideoConfig::Load(const char *ini_file)
 	iniFile.Get("Settings", "UseRealXFB", &bUseRealXFB, 0);
 	iniFile.Get("Settings", "SafeTextureCacheColorSamples", &iSafeTextureCache_ColorSamples,128);
 	iniFile.Get("Settings", "ShowFPS", &bShowFPS, false); // Settings
+	iniFile.Get("Settings", "LogFPSToFile", &bLogFPSToFile, false);
 	iniFile.Get("Settings", "ShowInputDisplay", &bShowInputDisplay, false);
 	iniFile.Get("Settings", "OverlayStats", &bOverlayStats, false);
 	iniFile.Get("Settings", "OverlayProjStats", &bOverlayProjStats, false);
@@ -186,6 +187,7 @@ void VideoConfig::Save(const char *ini_file)
 	iniFile.Set("Settings", "UseRealXFB", bUseRealXFB);
 	iniFile.Set("Settings", "SafeTextureCacheColorSamples", iSafeTextureCache_ColorSamples);
 	iniFile.Set("Settings", "ShowFPS", bShowFPS);
+	iniFile.Set("Settings", "LogFPSToFile", bLogFPSToFile);
 	iniFile.Set("Settings", "ShowInputDisplay", bShowInputDisplay);
 	iniFile.Set("Settings", "OverlayStats", bOverlayStats);
 	iniFile.Set("Settings", "OverlayProjStats", bOverlayProjStats);