FPSCounter: Add "Log render time to file" feature.

Allows for a more accurate performance measurement.

1 files changed, 22 insertions, 1 deletions

diff --git a/Source/Core/VideoCommon/FPSCounter.cpp b/Source/Core/VideoCommon/FPSCounter.cpp
index 5ebfdd499d..9706982758 100644
--- a/Source/Core/VideoCommon/FPSCounter.cpp
+++ b/Source/Core/VideoCommon/FPSCounter.cpp
@@ -20,17 +20,24 @@ static unsigned int s_fps_last_counter = 0;
 static unsigned long s_last_update_time = 0;
 static std::ofstream s_bench_file;
 
+static Common::Timer s_render_time;
+static std::ofstream s_time_file;
+
 void Initialize()
 {
 	s_counter = s_fps_last_counter = 0;
 	s_fps = 0;
 	s_last_update_time = Common::Timer::GetTimeMs();
 
+	s_render_time.Update();
+
 	if (s_bench_file.is_open())
 		s_bench_file.close();
+	if (s_time_file.is_open())
+		s_time_file.close();
 }
 
-static void LogFPSToFile(unsigned long val)
+static void LogFPSToFile(u64 val)
 {
 	if (!s_bench_file.is_open())
 		s_bench_file.open(File::GetUserPath(D_LOGS_IDX) + "fps.txt");
@@ -38,6 +45,14 @@ static void LogFPSToFile(unsigned long val)
 	s_bench_file << StringFromFormat("%lu\n", val);
 }
 
+static void LogRenderTimeToFile(u64 val)
+{
+	if (!s_time_file.is_open())
+		s_time_file.open(File::GetUserPath(D_LOGS_IDX) + "render_time.txt");
+
+	s_time_file << StringFromFormat("%lu\n", val);
+}
+
 int Update()
 {
 	if (Common::Timer::GetTimeMs() - s_last_update_time >= FPS_REFRESH_INTERVAL)
@@ -49,6 +64,12 @@ int Update()
 			LogFPSToFile(s_fps);
 	}
 
+	if (g_ActiveConfig.bLogRenderTimeToFile)
+	{
+		LogRenderTimeToFile(s_render_time.GetTimeDifference());
+		s_render_time.Update();
+	}
+
 	s_counter++;
 	return s_fps;
 }