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

[Shankar, Uma]

>-----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

>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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>> dri-devel at lists.freedesktop.org
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>
>--
>Cheers,
>Alex G
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