[PATCH 3/4] drm: Extend color correction to support 3D-CLU

[Ville Syrjälä]

On Mon, Dec 21, 2020 at 03:57:29AM +0200, Laurent Pinchart wrote:
> From: Kieran Bingham <kieran.bingham+renesas at ideasonboard.com>
> 
> Extend the existing color management properties to support provision
> of a 3D cubic look up table, allowing for color specific adjustments.
> 
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas at ideasonboard.com>
> Co-developed-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>

FYI I've got a WIP 3D LUT implementation for i915 here:
git://github.com/vsyrjala/linux.git 3dlut

I named the prop GAMMA_LUT_3D to indicate its position in the
pipeline (on our hw it's postioned after the normal gamma LUT).
Alas no userspace for it yet, so can't really do anything more 
with it for the time being.

Rudimentary tests also available here:
git://github.com/vsyrjala/intel-gpu-tools.git 3dlut

-- 
Ville Syrjälä
Intel