commit 039bbb8aca1280afdf0ecf20810c32804a82199d
author Jorim Jaggi <jjaggi@google.com> Wed Sep 06 18:12:05 2017 +0200
committer Jorim Jaggi <jjaggi@google.com> Wed Sep 20 17:27:13 2017 +0200
tree 5b6e23fae52d6922dcc5febd73c1c64fdf7cf84a
parent 931dc01ad7c2d3eb1de276a7174cd55928d463aa

Use Layer.getAlpha instead of State.alpha to calculate occlusion

Test: CP lock-free anim CL and make sure no black flickers
when starting window fading out.

Change-Id: I422f69e26ba86414476bae9cc3253caf062d4e36

services/surfaceflinger/SurfaceFlinger.cpp

diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index cae4dea..eb574eb 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2437,7 +2437,7 @@
 
                 // compute the opaque region
                 const int32_t layerOrientation = tr.getOrientation();
-                if (s.alpha == 1.0f && !translucent &&
+                if (layer->getAlpha() == 1.0f && !translucent &&
                         ((layerOrientation & Transform::ROT_INVALID) == false)) {
                     // the opaque region is the layer's footprint
                     opaqueRegion = visibleRegion;