- // second changed?\r
- if (thissec != tval.tv_sec)\r
- {\r
-#ifdef BENCHMARK\r
- static int bench = 0, bench_fps = 0, bench_fps_s = 0, bfp = 0, bf[4];\r
- if (++bench == 10) {\r
- bench = 0;\r
- bench_fps_s = bench_fps;\r
- bf[bfp++ & 3] = bench_fps;\r
- bench_fps = 0;\r
- }\r
- bench_fps += frames_shown;\r
- sprintf(fpsbuff, "%02i/%02i/%02i", frames_shown, bench_fps_s, (bf[0]+bf[1]+bf[2]+bf[3])>>2);\r
-#else\r
- if (currentConfig.EmuOpt & 2) {\r
- sprintf(fpsbuff, "%02i/%02i", frames_shown, frames_done);\r
- if (fpsbuff[5] == 0) { fpsbuff[5] = fpsbuff[6] = ' '; fpsbuff[7] = 0; }\r
- }\r
-#endif\r
- frames_shown = frames_done = 0;\r
- thissec = tval.tv_sec;\r
- }\r
-#ifdef PFRAMES\r
- sprintf(fpsbuff, "%i", Pico.m.frame_count);\r
-#endif\r
-\r
- if (pthissec != tval.tv_sec)\r
- {\r
- if (PsndOut == 0 && currentConfig.Frameskip >= 0) {\r
- pframes_done = pframes_shown = 0;\r
- } else {\r
- // it is quite common for this implementation to leave 1 fame unfinished\r
- // when second changes, but we don't want buffer to starve.\r
- if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {\r
- updateKeys();\r
- SkipFrame(1); pframes_done++;\r
- }\r
-\r
- pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;\r
- pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;\r
- if (pframes_shown > pframes_done) pframes_shown = pframes_done;\r
- }\r
- pthissec = tval.tv_sec;\r
- }\r
-\r
- lim_time = (pframes_done+1) * target_frametime + vsync_offset;\r
- if (currentConfig.Frameskip >= 0) // frameskip enabled\r
- {\r
- for(i = 0; i < currentConfig.Frameskip; i++) {\r
- updateKeys();\r
- SkipFrame(1); pframes_done++; frames_done++;\r
- if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled\r
- gettimeofday(&tval, 0);\r
- if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
- if (tval.tv_usec < lim_time) { // we are too fast\r
- simpleWait(pthissec, lim_time);\r
- }\r
- }\r
- lim_time += target_frametime;\r
- }\r
- }\r
- else if (tval.tv_usec > lim_time) // auto frameskip\r
- {\r
- // no time left for this frame - skip\r
- if (tval.tv_usec - lim_time >= 300000) {\r
- /* something caused a slowdown for us (disk access? cache flush?)\r
- * try to recover by resetting timing... */\r
- reset_timing = 1;\r
- continue;\r
- }\r
- updateKeys();\r
- SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;\r
- continue;\r
- }\r
-\r
- updateKeys();\r
- PicoFrame();\r
-\r
- // check time\r
- gettimeofday(&tval, 0);\r
- if (pthissec != tval.tv_sec) tval.tv_usec+=1000000;\r
-\r
- if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection\r
- reset_timing = 1;\r
- else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
- {\r
- // sleep or vsync if we are still too fast\r
- // usleep sleeps for ~20ms minimum, so it is not a solution here\r
- if (!reset_timing && tval.tv_usec < lim_time)\r
- {\r
- // we are too fast\r
- if (vsync_offset) {\r
- if (lim_time - tval.tv_usec > target_frametime/2)\r
- simpleWait(pthissec, lim_time - target_frametime/4);\r
- gp2x_video_wait_vsync();\r
- } else {\r
- simpleWait(pthissec, lim_time);\r
- }\r
- }\r
- }\r
-\r
- blit(fpsbuff, notice);\r
-\r
- pframes_done++; pframes_shown++;\r
- frames_done++; frames_shown++;\r
- }\r