[x265] zero stride for zeroPel[]

[Steve Borho]

On Fri, Jul 11, 2014 at 1:08 AM, Sumalatha Polureddy
<sumalatha at multicorewareinc.com> wrote:
> all zeropel changes are ok.
> but
> g_convertToBit[trSize] and log2TrSize - 2 return same value. so I dont think
> these change is required

Thanks for reviewing, Sumalatha.

A subtract will generally be faster than a table lookup, so it's a
useful change.  I've pushed this patch with a few more refactor
changesets of my own.

-- 
Steve Borho