tree 13801e604f796260ddfb346deadb6b8894d2324b
parent dd9e75b665130c7aafb456afd3bba1070e70a0ba
author Saurabh Shah <saurshah@codeaurora.org> 1365111188 -0700
committer Saurabh Shah <saurshah@codeaurora.org> 1366304907 -0700

overlay: Add support for decimation.

Add support for decimation on top of what MDP can downscale,
because decimation can have quality issues.
B-family MDP downscale of 1/4, plus decimation of 1/16 can let
us have a total downscale of 1/64.

Also decimate by 2 (min) if width is greater than what layer mixer
supports and is not handled by the client.

Change-Id: I3b7c4bf321c7561bd98206ad118f4ac1ee2879ae