[RFC v3 0/8] Add Plane Color Properties

[Alexandru-Cosmin Gheorghe]

Hi Uma,

On Tue, Jun 12, 2018 at 04:01:31AM +0000, Shankar, Uma wrote:
> 
> 
> >-----Original Message-----
> >From: dri-devel [mailto:dri-devel-bounces at lists.freedesktop.org] On Behalf Of
> >Alexandru-Cosmin Gheorghe
> >Sent: Monday, June 11, 2018 3:47 PM
> >To: Shankar, Uma <uma.shankar at intel.com>
> >Cc: dcastagna at chromium.org; intel-gfx at lists.freedesktop.org;
> >emil.l.velikov at gmail.com; dri-devel at lists.freedesktop.org; Syrjala, Ville
> ><ville.syrjala at intel.com>; nd at arm.com; Lankhorst, Maarten
> ><maarten.lankhorst at intel.com>
> >Subject: Re: [RFC v3 0/8] Add Plane Color Properties
> >
> >Hi Uma,
> >
> >Any progress on userspace for this?
> >I was thinking on working on using this in drm_hwcomposer.
> >
> 
> Hi Alex,
> Not much work has been done till now on user space side. You can go ahead
> and try to enable it in drm_hwcomposer.
> 
> Regards,
> Uma Shankar
>

I opened a Merge request in drm_hwcomposer, if you have time please
have a look and let me know what you think.
[1] https://gitlab.freedesktop.org/drm-hwcomposer/drm-hwcomposer/merge_requests/25 
 
> >Thank you,
> >Alex Gheorghe
> >
> >On Fri, Mar 09, 2018 at 11:47:41PM +0530, Uma Shankar wrote:
> >> This patch series adds properties for plane color features. It adds
> >> properties for degamma used to linearize data, CSC used for gamut
> >> conversion, and gamma used to again non-linearize data as per panel
> >> supported color space. These can be utilize by user space to convert
> >> planes from one format to another, one color space to another etc.
> >>
> >> Usersapce can take smart blending decisions and utilize these hardware
> >> supported plane color features to get accurate color profile. The same
> >> can help in consistent color quality from source to panel taking
> >> advantage of advanced color features in hardware.
> >>
> >> These patches just add the property interfaces and enable helper
> >> functions.
> >>
> >> This series adds Intel Gen9 specific plane gamma feature. We can build
> >> up and add other platform/hardware specific implementation on top of
> >> this series
> >>
> >> Note: This is just to get a design feedback whether these interfaces
> >> look ok. Based on community feedback on interfaces, we will implement
> >> IGT tests to validate plane color features. This is un-tested currently.
> >> Also, userspace implementation to use these properties is currently
> >> not available.
> >>
> >> v2: Dropped legacy gamma table for plane as suggested by Maarten.
> >> Added Gen9/BDW plane gamma feature and rebase on tot.
> >>
> >> v3: Added a new drm_color_lut_ext structure to accommodate 32 bit
> >> precision entries, pointed to by Brian, Starkey for HDR usecases.
> >> Addressed Sean,Paul comments and moved plane color properties to
> >> drm_plane instead of mode_config. Added property documentation as
> >suggested by Daniel, Vetter.
> >> Fixed a rebase fumble which occurred in v2, pointed by Emil Velikov.
> >>
> >> Uma Shankar (8):
> >>   drm: Add Enhanced Gamma LUT precision structure
> >>   drm: Add Plane Degamma properties
> >>   drm: Add Plane CTM property
> >>   drm: Add Plane Gamma properties
> >>   drm: Define helper function for plane color enabling
> >>   drm/i915: Enable plane color features
> >>   drm/i915: Implement Plane Gamma for Bdw and Gen9 platforms
> >>   drm/i915: Load plane color luts from atomic flip
> >>
> >>  Documentation/gpu/drm-kms.rst             |  18 ++++
> >>  drivers/gpu/drm/drm_atomic.c              |  30 +++++++
> >>  drivers/gpu/drm/drm_atomic_helper.c       |  12 +++
> >>  drivers/gpu/drm/drm_plane.c               | 131
> >++++++++++++++++++++++++++++++
> >>  drivers/gpu/drm/i915/i915_drv.h           |   5 ++
> >>  drivers/gpu/drm/i915/i915_pci.c           |   5 +-
> >>  drivers/gpu/drm/i915/i915_reg.h           |  24 ++++++
> >>  drivers/gpu/drm/i915/intel_atomic_plane.c |   4 +
> >>  drivers/gpu/drm/i915/intel_color.c        |  80 ++++++++++++++++++
> >>  drivers/gpu/drm/i915/intel_device_info.h  |   5 ++
> >>  drivers/gpu/drm/i915/intel_display.c      |   4 +
> >>  drivers/gpu/drm/i915/intel_drv.h          |  10 +++
> >>  drivers/gpu/drm/i915/intel_sprite.c       |   4 +
> >>  include/drm/drm_color_mgmt.h              |   5 ++
> >>  include/drm/drm_plane.h                   |  66 +++++++++++++++
> >>  include/uapi/drm/drm_mode.h               |  15 ++++
> >>  16 files changed, 417 insertions(+), 1 deletion(-)
> >>
> >> --
> >> 1.9.1
> >>
> >> _______________________________________________
> >> dri-devel mailing list
> >> dri-devel at lists.freedesktop.org
> >> https://lists.freedesktop.org/mailman/listinfo/dri-devel
> >
> >--
> >Cheers,
> >Alex G
> >_______________________________________________
> >dri-devel mailing list
> >dri-devel at lists.freedesktop.org
> >https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Cheers,
Alex G