SF: Clear layer history when inconclusive to frequent
layer transition
BUG: 265561529
Test: atest LayerHistoryTest
Benchmark shows improvement with the changes https://android-build.googleplex.com/builds/abtd/run/L82600000959656128
Change-Id: I152aa97f00592960411133de150990747ca8b31d
diff --git a/services/surfaceflinger/Scheduler/LayerInfo.h b/services/surfaceflinger/Scheduler/LayerInfo.h
index a3523ac..c5a6057 100644
--- a/services/surfaceflinger/Scheduler/LayerInfo.h
+++ b/services/surfaceflinger/Scheduler/LayerInfo.h
@@ -181,6 +181,7 @@
mFrameTimeValidSince = std::chrono::time_point<std::chrono::steady_clock>(timePoint);
mLastRefreshRate = {};
mRefreshRateHistory.clear();
+ mIsFrequencyConclusive = true;
}
void clearHistory(nsecs_t now) {
@@ -251,7 +252,15 @@
static constexpr float MARGIN_CONSISTENT_FPS = 1.0;
};
- bool isFrequent(nsecs_t now) const;
+ // Represents whether we were able to determine either layer is frequent or infrequent
+ bool mIsFrequencyConclusive = true;
+ struct Frequent {
+ bool isFrequent;
+ bool clearHistory;
+ // Represents whether we were able to determine isFrequent conclusively
+ bool isConclusive;
+ };
+ Frequent isFrequent(nsecs_t now) const;
bool isAnimating(nsecs_t now) const;
bool hasEnoughDataForHeuristic() const;
std::optional<Fps> calculateRefreshRateIfPossible(const RefreshRateSelector&, nsecs_t now);