commit 7e49aa4cebcdd56ae3ecb2f17ba56d04bf7dd121
author Ady Abraham <adyabr@google.com> Tue Jun 11 19:08:58 2019 -0700
committer Ana Krulec <akrulec@google.com> Tue Sep 03 13:53:08 2019 -0700
tree 3aa98bab61c073e17ccab9e9701d1378fc05015a
parent b0006974a9038b47774b1b1191f7eb4d1648cf23

SurfaceFlinger: clear LayerHistory on touch

Clear LayerHistory and mark all layers as inactive when getting
a touch event to prevent a quick refresh rate bounce as LayerHistory
picks up with the FPS.

Fixes: 134663749
Test: live wallpaper + Open notification shade + wait for 60Hz + Click on "USB debugging connected"
Change-Id: Ifa095fbcdb95ffe413cc77c5e062f1174815158b
(cherry picked from commit a9bf4cadf763fe8337c231c44e7d39827c98a0b8)
Merged-In: Ifa095fbcdb95ffe413cc77c5e062f1174815158b

services/surfaceflinger/Scheduler/Scheduler.cpp

diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index afcf3d4..86b2920 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -407,6 +407,10 @@
     if (mSupportKernelTimer) {
         resetIdleTimer();
     }
+
+    // Touch event will boost the refresh rate to performance.
+    // Clear Layer History to get fresh FPS detection
+    mLayerHistory.clearHistory();
 }
 
 void Scheduler::resetTimerCallback() {