tree 0a8923e3213aeb18d385e2c7eb2816d7698be49e
parent 0a2f6640defa14b1bf1753ee2faf7e3d32c259f0
author Jeff Brown <jeffbrown@google.com> 1307671515 -0700
committer Jeff Brown <jeffbrown@google.com> 1307754810 -0700

Optimize orientation changes.

Modified setRotation to allow it to restart a rotation in
progress as long as the rotation animation has not yet started.
This enables the system to recover more quickly from mispredicted
orientation changes.

Removed the call to System.gc() when freezing the display, which
added 60-80ms before we even started the orientation change.
We used to need this to make it less likely that an upcoming GC
would cause a pause during the window animation, but this is
not longer a concern with the concurrent GC in place.

Changed the wallpaper surface to be 32bit.  This accelerates
drawing and improves the overall appearance slightly.

Reduced code duplication in the WallpaperManager.

Change-Id: Ic6e5e8bdce4b970b11badddd0355baaed40df88a