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| author | 2023-09-15 21:48:24 +0000 | |
|---|---|---|
| committer | 2023-10-16 22:03:35 +0000 | |
| commit | 22dc3e0a9bcbb60b645c7d86cc019824a3632c22 (patch) | |
| tree | 059a8a4736f003f6817831bede73108c234a1ea4 /libs/androidfw/misc.cpp | |
| parent | 026f2362dd5364e708800491588c871c675bb2ab (diff) | |
Basic framework of the UI toolkit variable refresh rate project
This CL includes two major changes for variable refresh rate (VRR) project:
1. Migrated the TouchBoost logic from SurfaceFlinger to
ViewRootImpl. When users touch (MotionEvent.ACTION_DOWN) the screen or press and move (MotionEvent.ACTION_MOVE), we increase the frame rate / refresh rate to the maximum value to offer users a smooth user experience. The frame rate will then be lowered after a certain period.
2. Built the frame rate voting mechanism. This enables Views to vote for
their preferred frame rate. Those votes will be aggregated in
ViewRootImpl to determine a final one. The preferred frame rate of a
View is determined based on its size.
The implementation is gated by a Trunk Stable flag.
Bug: 278731105
Bug: 278731091
Bug: 293505054
Bug: 296459487
Bug: 293513140
Bug: 293513467
Test: atest ViewRootImplTest / ViewTest
Change-Id: I78a8f327eda8f2a32180cba7b93e939fa3a658ff
Diffstat (limited to 'libs/androidfw/misc.cpp')
0 files changed, 0 insertions, 0 deletions