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clutter: Add a flag to disable heuristic max render time

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Debugging purposes: allows to check if frame drops are caused by
heuristic max render time or if they are there even with the old
behavior.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1762>
This commit is contained in:
Ivan Molodetskikh
2020-11-28 16:46:03 +03:00
committed by Marge Bot
parent 592fbee065
commit 565e34b4d2
3 changed files with 15 additions and 10 deletions
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5
clutter/clutter/clutter-frame-clock.c
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@ -19,6 +19,7 @@
#include "clutter/clutter-frame-clock.h"
#include "clutter/clutter-debug.h"
#include "clutter/clutter-main.h"
#include "clutter/clutter-private.h"
#include "clutter/clutter-timeline-private.h"
@ -307,7 +308,9 @@ clutter_frame_clock_compute_max_render_time_us (ClutterFrameClock *frame_clock)
refresh_interval_us =
(int64_t) (0.5 + G_USEC_PER_SEC / frame_clock->refresh_rate);
if (!frame_clock->got_measurements_last_frame)
if (!frame_clock->got_measurements_last_frame ||
G_UNLIKELY (clutter_paint_debug_flags &
CLUTTER_DEBUG_DISABLE_DYNAMIC_MAX_RENDER_TIME))
return refresh_interval_us - SYNC_DELAY_FALLBACK_US;
for (i = 0; i < ESTIMATE_QUEUE_LENGTH; ++i)