SurfaceFlinger: frame rate heuristic during config change
Some devices might takes a few frames to change the refresh rate.
Calculating the frame rate should ignore frames sent while changing
the refresh rate as those might result in an inaccurate frame rate
due to frame misses.
Bug: 156530990
Test: Running Hay Day and observing refresh rate.
Change-Id: I99f364cd1816c3ce2ba3c3145331eb618dcaea71
diff --git a/services/surfaceflinger/Scheduler/LayerHistory.h b/services/surfaceflinger/Scheduler/LayerHistory.h
index a1ae35c..d5bebf6 100644
--- a/services/surfaceflinger/Scheduler/LayerHistory.h
+++ b/services/surfaceflinger/Scheduler/LayerHistory.h
@@ -52,6 +52,8 @@
// Sets the display size. Client is responsible for synchronization.
virtual void setDisplayArea(uint32_t displayArea) = 0;
+ virtual void setConfigChangePending(bool pending) = 0;
+
// Marks the layer as active, and records the given state to its history.
virtual void record(Layer*, nsecs_t presentTime, nsecs_t now) = 0;
@@ -78,6 +80,8 @@
void setDisplayArea(uint32_t /*displayArea*/) override {}
+ void setConfigChangePending(bool /*pending*/) override {}
+
// Marks the layer as active, and records the given state to its history.
void record(Layer*, nsecs_t presentTime, nsecs_t now) override;
@@ -134,6 +138,8 @@
// Sets the display size. Client is responsible for synchronization.
void setDisplayArea(uint32_t displayArea) override { mDisplayArea = displayArea; }
+ void setConfigChangePending(bool pending) override { mConfigChangePending = pending; }
+
// Marks the layer as active, and records the given state to its history.
void record(Layer*, nsecs_t presentTime, nsecs_t now) override;
@@ -178,6 +184,9 @@
// Whether to use priority sent from WindowManager to determine the relevancy of the layer.
const bool mUseFrameRatePriority;
+
+ // Whether a config change is in progress or not
+ std::atomic<bool> mConfigChangePending = false;
};
} // namespace impl