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List:       freedesktop-xorg
Subject:    Re: Xgl/Xegl future?
From:       Alex Deucher <alexdeucher () gmail ! com>
Date:       2005-08-28 22:36:31
Message-ID: a728f9f9050828153617540370 () mail ! gmail ! com
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On 8/28/05, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> On Sul, 2005-08-28 at 14:08 -0700, Eric Anholt wrote:
> > Well, nearly every driver currently in X.Org uses the overlay scaler.
> > MGA is the exception I know of, and that's just an option.  I would like
> > to see us use the texture scaler to get the job done where possible,
> > since it lets us play nice with composite and lets you have multiple
> > hardware-accelerated YUV videos put on the screen at a time.
> 
> A lot of the overlay hardware also does de-lace, flicker fixing and
> synchronized double buffering. There are good reasons to expose both in
> a meaningful way.
> 
> Alan
> 

Plus most overlays support alpha blending with the graphics layer. 
The problem is I guess there isn't a good way to integrate it with
composite.

Alex

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