Re: [RFC PATCH v2 1/2] drm: Add generic colorkey properties

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On Tuesday, 19 June 2018 20:40:12 MSK Russell King - ARM Linux wrote:
> On Tue, May 29, 2018 at 10:11:03AM +0300, Ville Syrjälä wrote:
> > On Tue, May 29, 2018 at 02:48:22AM +0300, Dmitry Osipenko wrote:
> > > Though maybe "color components replacement" and "replacement with a
> > > complete transparency" could be factored out into a specific color
> > > keying modes.> 
> > Yes. I've never seen those in any hardware. In fact I'm wondering where
> > is the userspace for all these complex modes? Ie. should we even bother
> > with them at this time?
> 
> Such hardware does exist - here's what Armada 510 supports (and is
> supported via armada-drm):

It shouldn't be a problem to extend the list of common color keying modes with 
a mode that is supported only by a particular HW. The only requirement for 
adding a new mode is that this mode must be utilized by opensource userspace 
software.






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