mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2024-11-15 13:57:57 -07:00
8cefcaa94c
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).
64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
// Copyright (C) 2003 Dolphin Project.
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, version 2.0.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official SVN repository and contact information can be found at
|
|
// http://code.google.com/p/dolphin-emu/
|
|
|
|
#include "FPSCounter.h"
|
|
#include "FileUtil.h"
|
|
#include "Timer.h"
|
|
#include "VideoConfig.h"
|
|
|
|
#define FPS_REFRESH_INTERVAL 1000
|
|
|
|
static unsigned int s_counter = 0;
|
|
static unsigned int s_fps = 0;
|
|
static unsigned int s_fps_last_counter = 0;
|
|
static unsigned long s_last_update_time = 0;
|
|
static File::IOFile s_bench_file;
|
|
|
|
void InitFPSCounter()
|
|
{
|
|
s_counter = s_fps_last_counter = 0;
|
|
s_fps = 0;
|
|
s_last_update_time = Common::Timer::GetTimeMs();
|
|
|
|
if (s_bench_file.IsOpen())
|
|
s_bench_file.Close();
|
|
}
|
|
|
|
static void LogFPSToFile(unsigned long val)
|
|
{
|
|
if (!s_bench_file.IsOpen())
|
|
s_bench_file.Open(File::GetUserPath(D_LOGS_IDX) + "fps.txt", "w");
|
|
|
|
char buffer[256];
|
|
snprintf(buffer, 256, "%ld\n", val);
|
|
s_bench_file.WriteArray(buffer, strlen(buffer));
|
|
}
|
|
|
|
int UpdateFPSCounter()
|
|
{
|
|
if (Common::Timer::GetTimeMs() - s_last_update_time >= FPS_REFRESH_INTERVAL)
|
|
{
|
|
s_last_update_time = Common::Timer::GetTimeMs();
|
|
s_fps = s_counter - s_fps_last_counter;
|
|
s_fps_last_counter = s_counter;
|
|
if (g_ActiveConfig.bLogFPSToFile)
|
|
LogFPSToFile(s_fps);
|
|
}
|
|
|
|
s_counter++;
|
|
return s_fps;
|
|
} |