Quoting Ville Syrj?l? ([EMAIL PROTECTED]):
> On Fri, Dec 27, 2002 at 05:06:25AM +0100, Denis Oliver Kropp wrote:
> > A problem is that XDirectFB currently has to lock the window surfaces
> > for the software fallbacks of the X Server permanantly.
> 
> So they stay locked even if the windows aren't visible?

Invisible windows (unmapped) don't have a DirectFB window.

> I haven't looked at XDirectFB sources. How much acceleration does it use
> and how much is done via sw fallbacks?

It's not that much, rectangle filling and window moving.

> > An interesting work would be to use command buffers via AGP with an interrupt
> > for the card getting idle.
> 
> That would be nice. I've been thinking about converting the driver to use
> pseudo DMA but never got around to it. It could be a simple enough first
> step towards real DMA.

I tried to do pseudo DMA once but obviously missed something because no
operations at all ever got executed.

-- 
Best regards,
  Denis Oliver Kropp

.------------------------------------------.
| DirectFB - Hardware accelerated graphics |
| http://www.directfb.org/                 |
"------------------------------------------"

                            Convergence GmbH


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