[Intel-gfx] [RFC v3 0/8] Add Plane Color Properties
Alexandru-Cosmin Gheorghe
Alexandru-Cosmin.Gheorghe at arm.com
Mon Jun 11 10:16:56 UTC 2018
Hi Uma,
Any progress on userspace for this?
I was thinking on working on using this in drm_hwcomposer.
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
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