commit aa7ebd6ac71917d9e94f29f0b62a1f62dad5e54e
author Ady Abraham <adyabr@google.com> Tue Mar 26 02:27:57 2024 +0000
committer Ady Abraham <adyabr@google.com> Tue Mar 26 02:27:57 2024 +0000
tree cfdbed139827d8fd7a058a4e9ed45350c672ab9e
parent 030337deabfb7ef7f2e3c00dbeae33ed87426994

SF: call onFrameBegin before scheduling the next frame

Bug: 329036771
Test: presubmit

Change-Id: Ie8643df787aa1080c59f280b005b40841715970b

services/surfaceflinger/SurfaceFlinger.cpp

diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 734058a..cf94f94 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2606,6 +2606,14 @@
                                          flushTransactions, transactionsAreEmpty);
         }
 
+        // Tell VsyncTracker that we are going to present this frame before scheduling
+        // setTransactionFlags which will schedule another SF frame. This was if the tracker
+        // needs to adjust the vsync timeline, it will be done before the next frame.
+        if (FlagManager::getInstance().vrr_config() && mustComposite) {
+            mScheduler->getVsyncSchedule()->getTracker().onFrameBegin(
+                pacesetterFrameTarget.expectedPresentTime(),
+                pacesetterFrameTarget.lastSignaledFrameTime());
+        }
         if (transactionFlushNeeded()) {
             setTransactionFlags(eTransactionFlushNeeded);
         }