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59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/* SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
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* Copyright (C) 2010-2011 - Hans-Kristian Arntzen
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*
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* Some code herein may be based on code found in BSNES.
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*
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* SSNES is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* SSNES is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with SSNES.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "gfx_common.h"
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#include "general.h"
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#include <sys/time.h>
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static float tv_to_fps(const struct timeval *tv, const struct timeval *new_tv, int frames)
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{
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float time = new_tv->tv_sec - tv->tv_sec + (new_tv->tv_usec - tv->tv_usec)/1000000.0;
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return frames/time;
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}
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bool gfx_window_title(char *buf, size_t size)
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{
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static int frames = 0;
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static struct timeval tv;
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struct timeval new_tv;
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bool ret = false;
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if (frames == 0)
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{
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gettimeofday(&tv, NULL);
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snprintf(buf, size, "%s", g_extern.title_buf);
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ret = true;
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}
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if ((frames % 180) == 0 && frames > 0)
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{
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gettimeofday(&new_tv, NULL);
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struct timeval tmp_tv = tv;
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tv = new_tv;
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float fps = tv_to_fps(&tmp_tv, &new_tv, 180);
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snprintf(buf, size, "%s || FPS: %6.1f || Frames: %d", g_extern.title_buf, fps, frames);
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ret = true;
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}
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frames++;
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return ret;
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}
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