Wayland and GLES1 (Re: R200 DRM/KMS)

[Steven Newbury]

On Wed, 2015-07-08 at 21:56 +0100, Steven Newbury wrote:
> On Tue, 2015-07-07 at 09:18 +0300, Pekka Paalanen wrote:
> > On Mon, 06 Jul 2015 22:50:30 +0100
> > Steven Newbury <steve at snewbury.org.uk> wrote:
> > 
> > > Would gles1 be sufficient to run a Wayland compositor, I'm
> > > guessing probably not..?
> > 
> > If you can find a Wayland compositor that is written to composite 
> > with
> > GLES1, that's all you need from the "Wayland side". (Yeah, this has
> > nothing to do with Wayland per se.) Compositing in itself without 
> > any
> > effects is very simple, as long as you get the textures up.
> > 
> > Or, if you find a Wayland compositor written to use desktop OpenGL 
> > for
> > compositing and does not use features your GL driver does not 
> > expose,
> > that's good too.
> > 
> Is desktop OpenGL accessible from "EGL_PLATFORM=drm"?
> 
To answer my own question, it seems that is possible.  I wonder if it
works with mutter/cogl???

> > Absolutely nothing about Wayland limits your choice of the GL 
> > flavour -
> > even more so as the compositor is not running *on* Wayland.
> > 
> > Also, the question of running GL apps on Wayland is a whole another
> > matter. There used to be a common misconception that Wayland had
> > something to do with only allowing GLES.
> > 
> > Finally, there is the option of software rendering for 
> > composition...
> > 
> Well, considering I was wondering about running Wayland on ancient
> hardware, perhaps software compositing wouldn't be ideal! ;-)
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