Commit 5bf786d8 authored Sep 30, 2014 by Jesse Hall

surfaceflinger: recompute visibility after sideband stream change

We normally recompute layer visibility when a layer gets its first
buffer; before then it's treated as invisible. Sideband layers never
get a buffer (as far as SurfaceFlinger knows), so never became
visible. Now we also recompute visibility when a layer gets a new
sideband stream.

Bug: 17752511
Change-Id: I84e150f196eb2eb7bcd2616248e5e3fa73624809

parent 5ee2c9d2

services/surfaceflinger/Layer.cpp

+4 −0

Original line number	Diff line number	Diff line
		@@ -1042,6 +1042,10 @@ Region Layer::latchBuffer(bool& recomputeVisibleRegions)
		if (android_atomic_acquire_cas(true, false, &mSidebandStreamChanged) == 0) {
		// mSidebandStreamChanged was true
		mSidebandStream = mSurfaceFlingerConsumer->getSidebandStream();
		recomputeVisibleRegions = true;

		const State& s(getDrawingState());
		return s.transform.transform(Region(Rect(s.active.w, s.active.h)));
		}

		Region outDirtyRegion;