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only clear FB when asked for the opaque layer
authorMathias Agopian <mathias@google.com>
Tue, 1 Oct 2013 22:36:52 +0000 (15:36 -0700)
committerMathias Agopian <mathias@google.com>
Tue, 1 Oct 2013 22:36:52 +0000 (15:36 -0700)
commitac68302e1cde8b931073929311fd6654a3253fc7
tree7e4f2259f4e5eee4bccb6a3319e108c45b39f588
parentb65f32ebe2c86869b07ac1c986660dfb2187b7d3
only clear FB when asked for the opaque layer

a layer need to be considered NOT opaque if it has a
plane-alpha.

Bug: 10846930
Change-Id: Ibd8981b63ede4560c7096bacc4cff46a7eb2a8bb
services/surfaceflinger/SurfaceFlinger.cpp