tree fefc8a4069e1629d0ac6cd60507eddba37a53ff1
parent 8bad3f9144400e94df2eca23db09c51a7d24eca5
author Terence Hampson <thampson@codeaurora.org> 1383771891 -0500
committer Terence Hampson <thampson@codeaurora.org> 1384977825 -0500

hwc: Fallback to gpu comp when copybit cannot handle scaling

For MDP3 we cannot support scaling more/less then 4 times. Copybit
will use intermediate buffer to run scaling operation between 4
and 16, by going through MDP3 twice. But will not continue to do
so for scaling factors greater than 16 because operation takes too
long. It is in this case that we will fallback to gpu composition.

Change-Id: I99c05f6c70307823d0497cc8f9469bcc15178fea