Michel Dänzer wrote:
> On Thu, 2002-06-13 at 08:34, Keith Whitwell wrote: 
> 
>>Leif Delgass wrote:
>>
>>>CVSROOT:     /cvsroot/dri
>>>Module name: xc
>>>Repository:  xc/xc/programs/Xserver/hw/xfree86/drivers/ati/
>>>Changes by:  ldelgass@usw-pr-cvs1.   02/06/12 20:48:11
>>>
>>>Log message:
>>>  Fixed and enbled 2D acceleration.  Also ATIDRIInitBuffers and ATIDRIMoveBuffers
>>>  are now implemented with XAA accel functions.  We still have some problems
>>>  with the scissors being updated (Mesa driver problem?) which can be seen when
>>>  moving windows.  We're only allocating 128 scanlines for pixmap cache and
>>>  offscreen pixmaps for XAA.  We should probably allocate a whole viewport's
>>>  worth, but this will leave very little if any local texture memory for some
>>>  cards (e.g. 4MB cards).  We might need a config option there.
>>>
>>Have a look at the tdfx driver -- it dynamically allocates/deallocates 2d 
>>pixcache according to whether there are any 3d clients -- so you get decent 2d 
>>performance in the non-3d case.
>>
>>It's done in the 2d driver, search for "Transition" and "2D" or "3D".
>>
> 
> Is there anything that keeps us from doing this in the radeon driver as
> well? :)

Nothing.  Go for it.

Keith


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