tree f6f5b527f3c4e2e43546ad65b24397734ac83e86
parent f63c52ac87c07ca37b9681a949b1bb5febce3e43
author Chet Haase <chet@google.com> 1331661805 -0700
committer Chet Haase <chet@google.com> 1331914492 -0700

Optimizing DisplayList properties

DisplayList properties are still disabled default (flags in View.java
and DisplayListRenderer.h). When they are enabled, and when a View has
a DisplayList, invalidations due to property changes are now optimized
to avoid causing DisplayList recreation. This eliminates the drawing step
of invalidation (due to changes in these properties), only requiring
issuing the previously-created DisplayList to the GL renderer. Invalidation
is slightly faster (less overhead as we walk up the hierarchy), getDisplayList()
is potentially much faster (going down to ~0ms), depending on the complexity
of the View being redrawn and the size of the invalidated hierarchy.

Change-Id: I57587d5b810c3595bdd72a6c52349c2a3d1bdf25