commit ace3d05494a29ab9666c37f8646879635fb9b583
author Ady Abraham <adyabr@google.com> Thu Nov 17 16:25:05 2022 -0800
committer Ady Abraham <adyabr@google.com> Mon Nov 28 11:50:12 2022 -0800
tree f30d755fd7eb78d706d83d3799e457e85fe306d5
parent 82251b19e531ee3d182f79bf82d4d35eea390f5a

SF: add render frame rate to the scheduler

Schedule SF at the rate of the render frame rate instead of
the display refresh rate.

Test: SF unit tests
Bug: 257072060
Change-Id: Idaf9be5f25373d38c0ef6440f9f401dc90de7a91

services/surfaceflinger/Scheduler/VSyncPredictor.h

diff --git a/services/surfaceflinger/Scheduler/VSyncPredictor.h b/services/surfaceflinger/Scheduler/VSyncPredictor.h
index 3181102..4a3ba67 100644
--- a/services/surfaceflinger/Scheduler/VSyncPredictor.h
+++ b/services/surfaceflinger/Scheduler/VSyncPredictor.h
@@ -67,6 +67,8 @@
 
     bool isVSyncInPhase(nsecs_t timePoint, Fps frameRate) const final EXCLUDES(mMutex);
 
+    void setDivisor(unsigned divisor) final EXCLUDES(mMutex);
+
     void dump(std::string& result) const final EXCLUDES(mMutex);
 
 private:
@@ -89,6 +91,8 @@
 
     nsecs_t nextAnticipatedVSyncTimeFromLocked(nsecs_t timePoint) const REQUIRES(mMutex);
 
+    bool isVSyncInPhaseLocked(nsecs_t timePoint, unsigned divisor) const REQUIRES(mMutex);
+
     nsecs_t mIdealPeriod GUARDED_BY(mMutex);
     std::optional<nsecs_t> mKnownTimestamp GUARDED_BY(mMutex);
 
@@ -100,6 +104,8 @@
 
     size_t mLastTimestampIndex GUARDED_BY(mMutex) = 0;
     std::vector<nsecs_t> mTimestamps GUARDED_BY(mMutex);
+
+    unsigned mDivisor GUARDED_BY(mMutex) = 1;
 };
 
 } // namespace android::scheduler