[Gllug] X server question

[Adrian McMenamin]

On Thu, February 21, 2008 11:53 am, Richard Jones wrote:
> On Thu, Feb 21, 2008 at 11:38:32AM -0000, Adrian McMenamin wrote:
>> There are not many books about on X and I'm finding it difficult to get
>> an
>> answer to this via googling, so maybe someone here could at least point
>> me
>> in the right direction.
>>
>> I would quite like to write an accelerated 3D X server for the
>> Dreamcast.
>>
>> Having an accelerated driver inside the kernel seems like a no-no
>> because
>> the card, for which I now have a fair degree of documentation, relies so
>> heavily on FP maths.
>>
>> So, where do I start?
>
> I would definitely start with the xorg server.  Is there an issue that
> this server will be too large for the Dreamcast, which has just 16 MB
> of RAM?
>

I'm not sure to be honest. I have run X servers on it in the past, but not
sure what they were other than they ran over some generic FB code.


> Then take a look at existing 3D drivers to see how they work.  You
> could for example grab the source to the new nVidia driver, Nouveau
> (http://nouveau.freedesktop.org/wiki/).  Of course it won't be
> directly relevant, but it'll tell you about what needs to be written.
>
> Coincidentally there was an article in LWN today about writing xorg
> drivers.  Part 1 is online here:
>
>   http://lwn.net/SubscriberLink/269558/f4858c1ae100dd5e/
>

Thanks for the link. Having read that it seems I need to have a DRM in the
kernel. Is that right?

This starts to look fiendishly complex :-/

-- 
Gllug mailing list  -  Gllug at gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug