Adds remaining missing overrides and nullptr usages, missed due to
an extreme failure in tool usage.
Change-Id: I56abd72975a3999ad13330003c348db40f59aebf
Bug: 18226391
The issue occurs as a result of a dispatchFrame itself
taking longer than 12ms, the alloted budget. The result
is that a vsync request (which occured at the end) would
miss the vsync that occured 1ms prior to the end of the frame.
As a result it would end up waiting for the following vsync,
essentially dropping to 30fps even though 60 could have been
sustained.
Fix this with a few tweaks.
First, adjust the UI thread's delay bias from (now + 4ms) to
(vsync + 4ms), this prevents RT animators from slowly drifting
if the vsync occurs mid-task.
Second, request a vsync preemptively prior to running callbacks.
This way if any callbacks needs the next vsync and it takes
"too long", we will catch that vsync.
Finally, fix an issue where the display event queue was always
drained & rejected at the end of a task loop. Instead, drain
and reject all stale vsyncs. This still prevents the issue of
both UI thread & RT thread trying to drive 2 frames in a single
pulse, but also allows RT to notice that it missed a vsync
pulse it needed and that it should speed-up a bit in response
Change-Id: I9d6be037737e9283297898cac2e3563453e797cd
Bug: 18203577
The issue occurs as a result of performTraversals() both doing
a window relayout call *and* early-returning because it's not dirty.
To fix this pauseSurface() returns whether or not the RT-side is
"dirty" to force ViewRootImpl to do a draw even if mDirty is
otherwise empty.
Change-Id: I534f367e75d18d273ebf14df3927f5c464ef6bef
Bug: 15118640
* Prevent over-stuffing the queue by dropping frames
* Prevent double-drawing in one pulse by RT by deferring
vsync registration until post-draw so that it catches
the next vsync pulse instead of the current one
* Bias vsync race condition towards the UI thread
* Fix queueDelay to actually work
Change-Id: Ibf584258bd93ebcbba058bd976dc8b307f1c6155
