[PATCH 3/4] Add "none" acceleration option

[Chris Wilson]

On Sat, Sep 27, 2014 at 05:35:15PM +0200, Michal Suchanek wrote:
> On 27 September 2014 10:09, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> > On Fri, Sep 26, 2014 at 08:35:34PM -0700, Keith Packard wrote:
> >> This uses fb directly, and supports DRI2 and DRI3.
> >
> > The fundamental principle of UXA is that at its lowest level it is
> > acceleration=none. This looks to be a large invasive and unwarranteed
> > change for a one-line bug in UXA pixmap allocation.
> > -Chris
> 
> Hello,
> 
> is there an option to make UXA behave as accel=none?

To do exactly as you ask, you need

Option "AccelMethod" "uxa"
Option "NoAccel" "true"

as just selecting

Option "AccelMethod" "none"

selects the default backend and disables its acceleration.

> Also can UXA be built without any extra libraries beyond what is
> needed for accel=none? Seems there is some drm_intel  dependency.

No, UXA (and by extension UXA/none) requires the extra dependency of
libdrm_intel.  The default Option "AccelMethod" "none" itself does not.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre