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Commit 4b67844a authored by Valerie Hau's avatar Valerie Hau
Browse files

Send transaction callbacks earlier 

As soon as layers finish post composition, we can send our transaction
callback so that the client can handle the callback information earlier
before the next SF cycle.  Reduces missed frames.  Also prevents missed
callback if display is not on.

Bug: 152709895
Test: build, boot, SurfaceFlinger_test, libsurfaceflinger_unittest,
manual

Change-Id: I9eff815270f43d1a3b6a0bf7a9c46e17194bd933
parent 14f49cd4

services/surfaceflinger/SurfaceFlinger.cpp

+3 −3
Original line number Diff line number Diff line
@@ -2164,6 +2164,9 @@ void SurfaceFlinger::postComposition() 
        }

    });



    mTransactionCompletedThread.addPresentFence(mPreviousPresentFences[0]);

    mTransactionCompletedThread.sendCallbacks();



    if (displayDevice && displayDevice->isPrimary() &&

        displayDevice->getPowerMode() == HWC_POWER_MODE_NORMAL && presentFenceTime->isValid()) {

        mScheduler->addPresentFence(presentFenceTime);
@@ -2244,9 +2247,6 @@ void SurfaceFlinger::postComposition() 
        }

    }



    mTransactionCompletedThread.addPresentFence(mPreviousPresentFences[0]);

    mTransactionCompletedThread.sendCallbacks();



    if (mLumaSampling && mRegionSamplingThread) {

        mRegionSamplingThread->notifyNewContent();

    }