xf86-video-savage: fix arbitrary horizontal downscaling of XVideo

[Alex Deucher]

On Thu, Feb 28, 2008 at 5:48 PM, Alex Villací­s Lasso
<a_villacis at palosanto.com> wrote:
> Current git of xf86-video-savage has problems with downscaling an XVideo
>  overlay horizontally - it will get stuck at a particular resize past 2:1
>  downscale. This patch allows the driver to use the register that directs
>  power-of-two downscale (MM8190) and arbitrary fractional downscale in
>  1:1 to 2:1 range (MM8198) in order to implement arbitrary downscaling
>  down to 64:1.
>

Looks good.  Committed.

Alex