[PATCH] pixman-backend: add support for zooming

[Pekka Paalanen]

On Mon, 1 Sep 2014 12:37:50 +0300
Pekka Paalanen <ppaalanen at gmail.com> wrote:

> On Fri, 29 Aug 2014 23:35:37 -0700
> Jason Ekstrand <jason at jlekstrand.net> wrote:
> 
> > On Aug 29, 2014 6:25 PM, "Derek Foreman" <derekf at osg.samsung.com> wrote:
> > >
> > > On 29/08/14 06:42 PM, Jason Ekstrand wrote:
> > > > Derek,

> > > > FWIW, I have a series on my github that accomplishes the same thing only
> > > > with substantially deeper changes to Weston:
> > > >
> > > > https://github.com/jekstrand/weston/commits/wip/transforms

> So roughly the big idea would be that Weston core provides coordinates
> and transformations end-to-end from buffer to output in raw pixels, and
> if the renderer has something strange like GL, it should do the
> adaptation in its own code.

Btw. there were some interesting emails on xorg-devel@ from Siarhei
Siamashka on how to convert a homogenous matrix to fixed point for
Pixman to use:

http://lists.x.org/archives/xorg-devel/2014-August/043629.html
http://lists.freedesktop.org/archives/xorg-devel/2014-August/043644.html


Thanks,
pq