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

[Michal Suchanek]

On 27 September 2014 18:26, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> 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

And the difference between UXA/none and "AccelMethod" "none" and fbdev
is supposed to be what?

Thanks

Michal