Xgl and direct rendering

[Matthias Hopf]

On Feb 28, 06 20:51:04 -0800, Keith Packard wrote:
> On Tue, 2006-02-28 at 19:20 +0100, Matthias Hopf wrote:
> > I consider hardware overlay broken by design. It has already given me
> > tons of nightmares.
> 
> Existing hardware overlays provide significantly better video quality
> than textured video; they generally have long filters for scaling the
> image accuately. There will be significant use cases (e.g. myth tv) for
> which video overlays are a fairly strong requirement.

But I think you will have issues with kdrive as well, as composition
won't work ;-)

Having a better video scaler is indeed an issue. However, this should
easily be fixed with a more elaborate pixel shader. We should even be
able to add adaptive deinterlacing here, though this gets a little bit
involved.

Matthias

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