Commit cd8994f4 authored Dec 03, 2021 by Jiang Tian Committed by John Reck Feb 08, 2022

Fix full draw power usage increase issue

Full draw will be happened on HWUI under 90/120Hz device,there are
more draw commands under renderFrameImpl than in the 60Hz fps device,
frame.bufferAge() > (int)mSwapHistory.size() resulting in an increase
in power usage.

So need to increase (int)mSwapHistory.size() to 8, set mSwapHistory
add to 7.

Bug: 209371516
Test: Manual

Change-Id: Ic6f21e7b9dc5e7c8f36d03c57b01fa7210cff86f

parent 8b60c745

libs/hwui/renderthread/CanvasContext.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -279,8 +279,8 @@ private:
		nsecs_t queueDuration;
		};

		// Need at least 4 because we do quad buffer. Add a 5th for good measure.
		RingBuffer<SwapHistory, 5> mSwapHistory;
		// Need at least 4 because we do quad buffer. Add a few more for good measure.
		RingBuffer<SwapHistory, 7> mSwapHistory;
		// Frame numbers start at 1, 0 means uninitialized
		uint64_t mFrameNumber = 0;
		int64_t mDamageId = 0;