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Commit 32446b8a authored by Jiang Tian's avatar Jiang Tian Committed by chuanghua zhao
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Fix full draw power usage increase issue 

Full draw will be happened on HWUI under 144Hz device,there are
more draw commands under renderFrameImpl than in the 120Hz fps device,
frame.bufferAge() > (int)mSwapHistory.size() resulting in an increase
in power usage.

So need to increase (int)mSwapHistory.size() to 8.

Bug: 397592669
Test: Manual
1.Use the 144Hz device
2.Grab Settings Systrace of the sliding scene
3.Collect the Systrace, and check the drawing dirty area
is the screen area of the entire device

Change-Id: I477d37828f080e64cded9f285c58b7b27cbe6b03
parent 55b9f102

libs/hwui/renderthread/CanvasContext.h

+1 −1
Original line number Diff line number Diff line
@@ -312,7 +312,7 @@ private: 
    };



    // Need at least 4 because we do quad buffer. Add a few more for good measure.

    RingBuffer<SwapHistory, 7> mSwapHistory;

    RingBuffer<SwapHistory, 8> mSwapHistory;

    // Frame numbers start at 1, 0 means uninitialized

    uint64_t mFrameNumber = 0;

    int64_t mDamageId = 0;