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List: freedesktop-xorg
Subject: Re: Xgl/Xegl future?
From: Matthias Hopf <mhopf () suse ! de>
Date: 2005-08-24 15:49:48
Message-ID: 20050824154948.GA21982 () suse ! de
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On Aug 22, 05 14:56:12 -0400, Michel Dänzer wrote:
> On Mon, 2005-08-22 at 19:23 +0200, Matthias Hopf wrote:
> > On Aug 22, 05 01:01:37 -0400, Michel Dänzer wrote:
> > > On Sun, 2005-08-21 at 21:08 -0400, Owen Taylor wrote:
> > > >
> > > > In order to do a good job with a GL-based compositing manager you need:
> > > >
> > > > - Redirection of OpenGL and Xvideo clients
> > >
> > > This is true whether the compositing manager is GL based or not.
> >
> > But an OpenGL based Xserver can use the graphics hardware for scaling
> > and color conversion of XV surfaces (that's what I've been working on).
>
> So can a GL based compositing manager.
No. Not with current Xservers. No way to get YUV / YUY2 data in native
format. This isn't easily possible to implement, either, as the PutImage
call does not have to completely fill a Window, and RGB data can be
drawn over it afterwards as well.
Matthias
--
Matthias Hopf <mhopf@suse.de> __ __ __
Maxfeldstr. 5 / 90409 Nuernberg (_ | | (_ |__ mat@mshopf.de
Phone +49-911-74053-715 __) |_| __) |__ labs www.mshopf.de
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