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Try to tune fastest cpu for Raspberry pi (merge from Chips)

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Dimitris Panokostas 2016-11-30 22:42:12 +01:00
parent 042304a0b3
commit aec45d4138
3 changed files with 14 additions and 21 deletions
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25
src/drawing.cpp
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@ -177,6 +177,10 @@ int idletime_percent = 0;
#define IDLETIME_FRAMES 20
unsigned long time_per_frame = 20000; // Default for PAL (50 Hz): 20000 microsecs
// Temporary define
#define OFFSET_FREE_CPU_CYCLES 1500
#define STEP_CYCLES 250
void adjust_idletime(unsigned long ms_waited)
{
idletime_frames++;
@ -194,13 +198,11 @@ void adjust_idletime(unsigned long ms_waited)
}
if(currprefs.m68k_speed < 0) {
#ifdef PANDORA_SPECIFIC
if(ms_waited < 500 && speedup_timelimit > -10000)
speedup_timelimit -= 500;
if(ms_waited < (500 + OFFSET_FREE_CPU_CYCLES) && speedup_timelimit > -10000)
speedup_timelimit -= STEP_CYCLES;
else
#endif
if(ms_waited > 1400 && speedup_timelimit < -1000)
speedup_timelimit += 500;
if(ms_waited > (1400 + OFFSET_FREE_CPU_CYCLES) && speedup_timelimit < -1000)
speedup_timelimit += STEP_CYCLES;
}
}
@ -2059,25 +2061,14 @@ void vsync_handle_check (void)
check_picasso ();
}
#ifdef RASPBERRY
int wait_for_vsync_dispmanx = 1;
extern uae_sem_t vsync_wait_sem;
#endif
void vsync_handle_redraw (void)
{
if (framecnt == 0)
{
#ifdef RASPBERRY
if (wait_for_vsync_dispmanx == 1)
uae_sem_wait (&vsync_wait_sem);
wait_for_vsync_dispmanx = 1;
#endif
finish_drawing_frame ();
}
if (quit_program < 0) {
quit_program = -quit_program;
set_inhibit_frame (IHF_QUIT_PROGRAM);

2
src/od-gles/gles_gfx.cpp
View file

@ -281,7 +281,7 @@ void flush_screen ()
last_synctime = read_processor_time();
if(last_synctime - next_synctime > time_per_frame - 1000 || next_synctime < start)
if(last_synctime - next_synctime > time_per_frame * (1 + currprefs.gfx_framerate) - 1000 || next_synctime < start)
adjust_idletime(0);
else
adjust_idletime(next_synctime - start);

8
src/od-rasp/rasp_gfx.cpp
View file

@ -397,10 +397,12 @@ void flush_screen ()
vc_dispmanx_update_submit(dispmanxupdate,vsync_callback,NULL);
}
uae_sem_wait (&vsync_wait_sem);
last_synctime = read_processor_time();
if(last_synctime - next_synctime > time_per_frame - 1000 || next_synctime < start)
if(last_synctime - next_synctime > time_per_frame * (1 + currprefs.gfx_framerate) - 1000 || next_synctime < start)
adjust_idletime(0);
else
adjust_idletime(next_synctime - start);
@ -518,7 +520,7 @@ int graphics_init(bool mousecapture)
{
int i,j;
uae_sem_init (&vsync_wait_sem, 0, 1);
uae_sem_init (&vsync_wait_sem, 0, 0);
graphics_subinit ();