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| author | Carsten Haitzler (Rasterman) <raster@rasterman.com> | 2021-02-03 00:43:20 +0000 |
|---|---|---|
| committer | Carsten Haitzler (Rasterman) <raster@rasterman.com> | 2021-02-03 00:43:20 +0000 |
| commit | 4013c98af15779e71d3a86ac03dd18796cbdf0e6 (patch) | |
| tree | be6cb872fd26149354b77d14e475ce31b7ebd468 | |
| parent | 9890c2b135f85fbbd3bf1ccfed90597ff65cfa71 (diff) | |
| download | efl-4013c98af15779e71d3a86ac03dd18796cbdf0e6.tar.gz | |
ecore_x - vsync ... this handles time going backwards
yes - time went backwards. we get time from the device driver and
vsync events... this is so incredibly wrong ... it should not have
ever happened... but it did and that caused all sorts of bad things to
happen to animators. this guards against that and tries to get the
system clock time and if that doesnt work it just takes last time +
0.901.
@fix
| -rw-r--r-- | src/lib/ecore_x/ecore_x_vsync.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/lib/ecore_x/ecore_x_vsync.c b/src/lib/ecore_x/ecore_x_vsync.c index 07abbabcca..26454a2ae9 100644 --- a/src/lib/ecore_x/ecore_x_vsync.c +++ b/src/lib/ecore_x/ecore_x_vsync.c @@ -290,7 +290,16 @@ _drm_send_time(double t) { if (threaded_vsync) { + static double t_last = 0.0; double *tim = malloc(sizeof(*tim)); + + // you won't believe this + if (t <= t_last) + { + fprintf(stderr, "EEEEEEK! time went backwards! %1.5f -> %1.5f\n", t_last, t); + t = ecore_time_get(); + if (t <= t_last) t = t_last + 0.001; + } if (tim) { *tim = t; @@ -301,7 +310,6 @@ _drm_send_time(double t) // 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; @@ -325,8 +333,7 @@ _drm_send_time(double t) // 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; + if (t_sleep > 0.0) usleep(t_sleep * 1000000.0); } D(" @%1.5f ... send %1.8f\n", ecore_time_get(), t); eina_spinlock_take(&tick_queue_lock); @@ -334,6 +341,7 @@ _drm_send_time(double t) eina_spinlock_release(&tick_queue_lock); ecore_thread_feedback(drm_thread, tim); } + t_last = t; } else { |