Re: [PATCH v2] drm/color: Document CTM eqations

[Brian Starkey]

What's the verdict? We've got [1] which is about to become another
(driver) implementation - better to change before that merges than
after I guess.

-Brian

[1] https://lkml.org/lkml/2017/2/13/304

On Wed, Feb 15, 2017 at 11:56:55AM +0000, Daniel Stone wrote:
> Hi,
>
> On 15 February 2017 at 11:39, Ville Syrjälä
> <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> > On Tue, Jan 31, 2017 at 06:46:39PM +0100, Daniel Vetter wrote:
> > > On Tue, Jan 31, 2017 at 6:22 PM, Ville Syrjälä
> > > <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
> > > > Hmm. Two's complement is what I was thinking it is. Which shows that
> > > > I never managed to read the code in any detail. Definitely needs to
> > > > be documented properly.
> > >
> > > That sounds supremely backwards. I guess we can't fix this anymore?
> >
> > I have no idea. Anyone else?
>
> I don't know of any implementation using this; maybe closed Intel
> Android stuff? Certainly GitHub showed no-one using it, and neither X
> nor Weston/Mutter are using it yet.
>
> Cheers,
> Daniel