[Intel-gfx] [RFC v3 0/8] Add Plane Color Properties

[Shankar, Uma]

>-----Original Message-----
>From: Alexandru-Cosmin Gheorghe [mailto:Alexandru-
>Cosmin.Gheorghe at arm.com]
>Sent: Thursday, June 14, 2018 6:21 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
>
>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.
>>
>
>Hi,
>
>I'm missing the hardware/driver that can do all three operations DEGAMMA, CSC,
>GAMMA for now, any chance you have a setup env with drm_hwcomposer and
>you would have time to help me with some testing after I would be writing the
>code ?
>

I can help with testing this out in some of our intel platforms. Will implement
the platform hooks for the same.

Let me know once you have the hwc changes ready.

Regards,
Uma Shankar

>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
>> >>
>> >_______________________________________________
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>
>--
>Cheers,
>Alex G