[Nouveau] preliminary nv50 wfb patch

[Maarten Maathuis]

This one has been optimised further, all usage of modulus has been removed.

There are still optimisations to do (like using hostdata transfers for
the first pixmap access), but this is getting closer to usable.

Maarten.

On Sat, Mar 7, 2009 at 2:20 PM, Maarten Maathuis <madman2003 at gmail.com> wrote:
> This version is a bit faster by avoiding the need for (SUB)TILE_WIDTH.
>
> On Sat, Mar 7, 2009 at 1:59 PM, Maarten Maathuis <madman2003 at gmail.com> wrote:
>> This patch will only work with Option "EXAPixmaps" "1", and will
>> prevent classic exa from working.
>>
>> Occasionally a pixmap fails to map, but that's not related to this patch.
>>
>> I haven't done any hardcore optimisations, but suggestions are
>> ofcource appreciated.
>>
>> In my experience some benchmarks suck now (gtkperf for which had it's
>> performance halved), and qt4 is definitely faster than gtk (gtk has
>> some odd rendering scenarios).
>>
>> This is by no means finished, but i wanted to share what i have.
>>
>> Maarten.
>>
>
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