kimcinoo
/
efl
forked from enlightenment/efl
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

ecore x - allow vsync animator to delay by some fraction of a frame 

@feat
This commit is contained in:
Carsten Haitzler 2021-02-01 13:05:11 +00:00
parent 77c9adf1fd
commit 6f803ad233
2 changed files with 42 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/lib/ecore_x/Ecore_X.h
View File

@ -2610,6 +2610,7 @@ EAPI void *ecore_x_input_device_property_get(int slot, const char *prop
EAPI void ecore_x_input_device_property_set(int slot, const char *prop, void *data, int num, Ecore_X_Atom format, int unit_size); /**< @since 1.24 */
EAPI Eina_Bool ecore_x_vsync_animator_tick_source_set(Ecore_X_Window win);
EAPI void ecore_x_vsync_animator_tick_delay_set(double delay); /** < @since 1.26 */
typedef enum _Ecore_X_Gesture_Event_Mask
{

41
src/lib/ecore_x/ecore_x_vsync.c
View File

@ -29,6 +29,8 @@ int _ecore_x_image_shm_check(void);
static int _vsync_log_dom = -1;
static double _ecore_x_vsync_animator_tick_delay = 0.0;
#undef ERR
#define ERR(...) EINA_LOG_DOM_ERR(_vsync_log_dom, __VA_ARGS__)
@ -293,6 +295,39 @@ _drm_send_time(double t)
{
*tim = t;
DBG(" ... send %1.8f", t);
// if we are the wm/compositor we need to offset out vsync by 1/2
// a frame ... we should never offset by more than
// frame_time - render_time though ... but we don't know what
// this is and this varies... so for now this will do.a
if (_ecore_x_vsync_animator_tick_delay > 0.0)
{
static double t_last = 0.0;
static double t_delta_hist[10] = { 0.0 };
double t_delta = t - t_last;
double t_delta_min = 0.0;
double t_sleep = 0.0;
// if time delta is sane like 1/20th of a sec or less..
if (t_delta < (1.0 / 20.0))
{
int i;
for (i = 0; i < 9; i++)
t_delta_hist[i] = t_delta_hist[i + 1];
t_delta_hist[9] = t_delta;
t_delta_min = t_delta_hist[0];
for (i = 1; i < 10; i++)
{
if (t_delta_hist[i] < t_delta_min)
t_delta_min = t_delta_hist[i];
}
t_sleep = t_delta_min * _ecore_x_vsync_animator_tick_delay;
// if w'ere sleeping too long - don't sleep at all.
if (t_sleep > (1.0 / 20.0)) t_sleep = 0.0;
}
usleep(t_sleep * 1000000.0);
t_last = t;
}
D(" @%1.5f ... send %1.8f\n", ecore_time_get(), t);
eina_spinlock_take(&tick_queue_lock);
tick_queue_count++;
@ -929,3 +964,9 @@ ecore_x_vsync_animator_tick_source_set(Ecore_X_Window win)
}
return EINA_TRUE;
}
EAPI void
ecore_x_vsync_animator_tick_delay_set(double delay)
{
_ecore_x_vsync_animator_tick_delay = delay;
}