tree 8cb42abb373827e39f4445054b24968c23d72070
parent f64b35b9af25e0b7bfa7ef7d7cb7eec0285f5818
author Dan Stoza <stoza@google.com> 1497906345 -0700
committer Dan Stoza <stoza@google.com> 1497906345 -0700

Switch to 3 framebuffer surface buffers

Switches from 2 to 3 buffers for SurfaceFlinger's FramebufferSurface.
This avoids an issue exposed by the HWC2 path where, since we now defer
buffer release, the GL driver ends up hanging on dequeueBuffer, which
is called in response to a glViewport command.

Bug: 62783122
Test: android.server.cts.ActivityManagerDisplayLockedKeyguardTests#
          testVirtualDisplayHidesContentWhenLocked

Change-Id: I6f68823c652fcfb12b16154653154ffe54457209