[Intel-gfx] [PATCH 0/7] Add Plane Color Properties

[Daniel Stone]

Hi Uma,

On 10 November 2017 at 08:37, Shankar, Uma <uma.shankar at intel.com> wrote:
>>This is missing documentation on how plane colour management interacts with
>>CRTC colour management. Is it a step before CRTC colour management is
>>applied, or does it bypass CRTC colour management, or ... ?
>>
>
> We can have color correction at 2 places in the Display hardware pipeline
> 1. At plane level (before blending)
> 2. At pipe level (after blending)
>
> Both can be used and function independently of each other. Typical use case can be:
>
> 2 Layers planes/overlays with different color space and formats. These can be converted to one
> common color space using the plane level color correction, then blended together. If needed
> pipe color correction can be applied on the blended output (based on use case and scenarios)

This is roughly what I'd expected, but I don't believe the same to be
true of all hardware, and it would certainly need to be documented.
Thanks for the explanation!

Cheers,
Daniel