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Implement a simple benchmarking mode which logs FPS to a file

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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).
This commit is contained in:
Pierre Bourdon
2012-10-04 05:41:02 +02:00
parent ac2ce8b16e
commit 8cefcaa94c
11 changed files with 119 additions and 36 deletions
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19
Source/Plugins/Plugin_VideoDX9/Src/Render.cpp
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@ -54,6 +54,7 @@
#include "Core.h"
#include "Movie.h"
#include "BPFunctions.h"
#include "FPSCounter.h"
namespace DX9
{
@ -247,6 +248,8 @@ void TeardownDeviceObjects()
// Init functions
Renderer::Renderer()
{
InitFPSCounter();
st = new char[32768];
int fullScreenRes, x, y, w_temp, h_temp;
@ -1107,7 +1110,7 @@ void Renderer::Swap(u32 xfbAddr, FieldType field, u32 fbWidth, u32 fbHeight,cons
OSD::DrawMessages();
D3D::EndFrame();
frameCount++;
++frameCount;
GFX_DEBUGGER_PAUSE_AT(NEXT_FRAME, true);
@ -1168,20 +1171,8 @@ void Renderer::Swap(u32 xfbAddr, FieldType field, u32 fbWidth, u32 fbHeight,cons
D3D::dev->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(0,0,0), 1.0f, 0);
}
// Place messages on the picture, then copy it to the screen
// ---------------------------------------------------------------------
// Count FPS.
// -------------
static int fpscount = 0;
static unsigned long lasttime = 0;
if (Common::Timer::GetTimeMs() - lasttime >= 1000)
{
lasttime = Common::Timer::GetTimeMs();
s_fps = fpscount;
fpscount = 0;
}
if (XFBWrited)
++fpscount;
s_fps = UpdateFPSCounter();
// Begin new frame
// Set default viewport and scissor, for the clear to work correctly