void emu_Loop(void)\r
{\r
static int gp2x_old_clock = 200;\r
- static int PsndRate_old = 0, PicoOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
+ static int PsndRate_old = 0, PicoOpt_old = 0, EmuOpt_old = 0, PsndLen_real = 0, pal_old = 0;\r
char fpsbuff[24]; // fps count c string\r
struct timeval tval; // timing\r
int thissec = 0, frames_done = 0, frames_shown = 0, oldmodes = 0;\r
- int target_fps, target_frametime, lim_time, i;\r
+ int target_fps, target_frametime, lim_time, vsync_offset, i;\r
char *notice = 0;\r
\r
printf("entered emu_Loop()\n");\r
printf("updated gamma to %i\n", currentConfig.gamma);\r
}\r
\r
+ if ((EmuOpt_old&0x2000) != (currentConfig.EmuOpt&0x2000)) {\r
+ if (currentConfig.EmuOpt&0x2000)\r
+ set_LCD_custom_rate(Pico.m.pal ? LCDR_100 : LCDR_120);\r
+ else unset_LCD_custom_rate();\r
+ }\r
+\r
+ EmuOpt_old = currentConfig.EmuOpt;\r
fpsbuff[0] = 0;\r
\r
// make sure we are in correct mode\r
// prepare CD buffer\r
if (PicoMCD & 1) PicoCDBufferInit();\r
\r
+ // calc vsync offset to sync timing code with vsync\r
+ if (currentConfig.EmuOpt&0x2000) {\r
+ gettimeofday(&tval, 0);\r
+ gp2x_video_wait_vsync();\r
+ gettimeofday(&tval, 0);\r
+ vsync_offset = tval.tv_usec;\r
+ while (vsync_offset >= target_frametime)\r
+ vsync_offset -= target_frametime;\r
+ if (!vsync_offset) vsync_offset++;\r
+ printf("vsync_offset: %i\n", vsync_offset);\r
+ } else\r
+ vsync_offset = 0;\r
+\r
// loop?\r
while (engineState == PGS_Running)\r
{\r
if (frames_shown > frames_done) frames_shown = frames_done;\r
}\r
}\r
-#if 0\r
- sprintf(fpsbuff, "%05i", Pico.m.frame_count);\r
-#endif\r
- lim_time = (frames_done+1) * target_frametime;\r
+\r
+ lim_time = (frames_done+1) * target_frametime + vsync_offset;\r
if(currentConfig.Frameskip >= 0) { // frameskip enabled\r
for(i = 0; i < currentConfig.Frameskip; i++) {\r
updateKeys();\r
reset_timing = 1;\r
else if (PsndOut != NULL || currentConfig.Frameskip < 0)\r
{\r
- // sleep if we are still too fast\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(tval.tv_usec < lim_time)\r
{\r
// we are too fast\r
- simpleWait(thissec, lim_time);\r
+ if (vsync_offset) {\r
+ if (lim_time - tval.tv_usec > target_frametime/2)\r
+ simpleWait(thissec, lim_time - target_frametime/4);\r
+ gp2x_video_wait_vsync();\r
+ } else {\r
+ simpleWait(thissec, lim_time);\r
+ }\r
}\r
}\r
\r