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// 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;
}
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