commit 596a2564287519a696b7077ed87505bc95c07aa7
author Dominik Laskowski <domlaskowski@google.com> Fri Oct 28 11:26:12 2022 -0400
committer Dominik Laskowski <domlaskowski@google.com> Wed Nov 16 12:01:54 2022 -0500
tree 772a170135999b1f100303196141aae87794a599
parent 345d32bcbf1fdeae6be3989fc96c7ea9c2ac3957

SF: Implement leader display promotion/demotion

Remove Scheduler::mRefreshRateSelector by using mLeaderDisplayId to look
up the leader's RefreshRateSelector. Replace setRefreshRateSelector with
setLeaderDisplay. Add logic to demote/promote the leader display (always
the primary display for now) when displays are added/changed/removed.

This fixes a regression where Scheduler::applyPolicy no longer respected
the active display after Ifa1bf23bc991fe60e67dba1cb31077e42fd5396e.

Bug: 255635821
Bug: 241286431
Test: Fold/unfold
Test: dumpsys SurfaceFlinger --scheduler
Change-Id: Ib1e8eacd2cdbf0d798ff7e8bb9c25607972104f5

services/surfaceflinger/Layer.cpp

diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 2a18521..b4e16fc 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -195,8 +195,7 @@
         mDrawingState.color.b = -1.0_hf;
     }
 
-    mFrameTracker.setDisplayRefreshPeriod(
-            args.flinger->mScheduler->getVsyncPeriodFromRefreshRateSelector());
+    mFrameTracker.setDisplayRefreshPeriod(args.flinger->mScheduler->getLeaderVsyncPeriod());
 
     mOwnerUid = args.ownerUid;
     mOwnerPid = args.ownerPid;