More 16 vs 24 bpp profiling

[Dan Williams]

On Tue, 2007-09-11 at 14:19 -0400, Bernardo Innocenti wrote:
> On 09/11/2007 01:32 PM, Bernardo Innocenti wrote:
> 
> > The 16bpp codepath has to be broken somewhere if
> > it takes twice the time to copy half the bits :-)
> 
> It strikes me that we don't see any time spent in
> pixman_fill_mmx(), even though it's not inlinable.
> 
> For some reason, pixman thinks it cannot accelerate
> 16bpp fills with MMX, at least on the Geode.
> 
> Might be worth investigating...

We did have to patch the MMX check in pixman long ago, maybe that got
broken somehow?  There were actually two, an update to the cpu flags and
also a strcmp() on the processor ID that had to be fixed to get pixman
to detect MMX capability on the geode.

Dan