commit f0bd62e7d34a63b21500112d98b7930f8c383896
author Yifei Zhang <yfz@google.com> Wed Jun 16 15:27:05 2021 -0700
committer Yifei Zhang <yfz@google.com> Wed Jun 29 22:07:00 2022 +0000
tree ef016fb4ff04651139be513656cfa924f8c18804
parent 40889a19bf7be7bc1fc3013cf1cdb88e9e611abf

surfaceflinger: repaint on DOZE_SUSPEND exit

This will force SF push out one more frame when transitioning out of
DOZE_SUSPEND. This will allow display to update with the latest frame
generated by the AP if MCU has drawn something on screen.

Bug: 191264924
Bug: 189731001
Change-Id: I491134973c00e98bf1c9f5af2ec37d4e0e5e547b
(cherry picked from commit 45ebe726419d344d5cf4abc83d71f1847b60e86a)

services/surfaceflinger/SurfaceFlinger.cpp

diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index aba7998..c4d6b0c 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -4920,6 +4920,9 @@
         // Update display while dozing
         getHwComposer().setPowerMode(displayId, mode);
         if (isDisplayActiveLocked(display) && currentMode == hal::PowerMode::DOZE_SUSPEND) {
+            ALOGI("Force repainting for DOZE_SUSPEND -> DOZE or ON.");
+            mVisibleRegionsDirty = true;
+            scheduleRepaint();
             mScheduler->onScreenAcquired(mAppConnectionHandle);
             mScheduler->resyncToHardwareVsync(true, refreshRate);
         }