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
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index a36ddd9..fa07656 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -1042,6 +1042,10 @@
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;