tree f395b4ae3b1d1d777e12e1c7741afd7bd94b8370
parent f2a14a60553c32957c135306e1b9fc9aa337103f
author Jonas Larsson <ljonas@google.com> 1579118197 -0800
committer Jonas Larsson <ljonas@google.com> 1579119109 +0000

glbox: explicitly clear output buffer before drawing

Not doing so saved a few cycles on enterprise but doesn't work
on columbia.

BUG: 147694481
Change-Id: I1fd9931d7bdbeb175d28fcb262ed2282aa09f7b5