Re: # Re: Gatos deb's (was: Re: xfree86 4.2.0-0pre1v3 (source,i386)available at the X Strike Force)
On 25 Aug 2002, Michel Dänzer wrote:
>> >Are there any plans for integrating gatos 2d aacceleration into the xfree6
>> >project's next debian release.
>>
>> Radeon 2D acceleration is implemented in two different ways. The
>> first method, MMIO, is used when DRI is disabled. The second
>> way, uses the Radeon CP engine, and is only used when DRI is
>> enabled.
>>
>> The problem though, is that the CP engine 2D code was not as
>> fully implemented as the MMIO code was, so earlier XFree86
>> releases will show a slowdown in 2D acceleration when DRI is
>> enabled. XFree86 4.2.0 has the situation improved slightly, but
>> it still isn't up to par with the MMIO code. Michel Daenzer has
>> implemented a bit more of the CP 2D code in DRI-CVS, which brings
>> the CP 2D code much closer to the level of the MMIO codepath.
>
>In fact, on the reinit-0-0-1-branch in DRI CVS, I've brought it up to
>par (in terms of accelerated operations - the CP is faster of course :).
>I hope this will get into 4.3.0.
Fantastic!
>> I've got a patch for 4.2.0 to add the latest code, however it was
>> reported as not fully working so I disabled it until I have time
>> to debug/troubleshoot.
>
>Can you be a bit more specific than 'not fully working'?
Not currently.. I put the patch in, and did a build.. I got
internal complaints X was broken shortly after, so I disabled the
patch and rebuilt. Haven't had time to investigate it since. If
I get time though, I'll provide feedback. It could be something
I screwed up backporting it.
>> If anyone wants a copy of the patch, let me know and I'll put it up on FTP.
>
>I'd be interested to see the patch if there are problems with it.
Sure thing..
ftp://people.redhat.com/mharris/testing/bleeding-edge/XFree86/4.2.0-67/raw-sources-patches-specfile/
The patch is:
XFree86-4.2.0-ati-radeon-cp-colorexpansion-imagewrite-enhancement.patch
Thanks Michel,
TTYL
--
Mike A. Harris Shipping/mailing address:
OS Systems Engineer 190 Pittsburgh Ave., Sault Ste. Marie,
XFree86 maintainer Ontario, Canada, P6C 5B3
Red Hat Inc.
http://www.redhat.com ftp://people.redhat.com/mharris
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