R7.1 roadmap, and additional goals

Luc Verhaegen libv at skynet.be
Thu Apr 13 18:12:01 PDT 2006

On Thu, Apr 13, 2006 at 05:43:48PM -0600, Philip Prindeville wrote:
> Is it too late to be adding additional goals to the R7.1 roadmap?
> http://xorg.freedesktop.org/wiki/ChangesForX11R71
> I was thinking that it might be nice to draft an API for supporting
> various video back-ends for supporting composite, VGA, DVI,
> LVDS, DFP, etc. and having a standard API for transmitters/encoders/
> whatnot that's decoupled from the video engine itself, since one often
> finds board manufacturers (or video controller manufacturers) mixing
> and matching vendors when it comes to back-ends...  You might have
> a Cirrus video controller, but it will be using a VIA or Sigma or TI
> encoder or transmitter... etc.
> For instance, if support gets hacked into the unichrome drivers for the
> VT1631 LVDS transmitter, should all of the work have to be duplicated
> to get the Intel 915 or S3 or Trident drivers to support the same
> transmitter?  Seems like wasted effort.
> Or is this more than can be realistically done?
> -Philip

As with everything modesetting, and this is a big part of the whole 
modesetting problem, this needs to grow from the drivers up, not the 
other way around.

So drafting an API is not very useful. Moulding drivers is.

Luc Verhaegen.

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