(+ Boris, + Sean) On Fri, 2019-06-14 at 13:17 -0300, Ezequiel Garcia wrote: > On Thu, 28 Mar 2019 at 16:50, Uma Shankar <uma.shankar@xxxxxxxxx> wrote: > > This is how a typical display color hardware pipeline looks like: > > +-------------------------------------------+ > > | RAM | > > | +------+ +---------+ +---------+ | > > | | FB 1 | | FB 2 | | FB N | | > > | +------+ +---------+ +---------+ | > > +-------------------------------------------+ > > | Plane Color Hardware Block | > > +--------------------------------------------+ > > | +---v-----+ +---v-------+ +---v------+ | > > | | Plane A | | Plane B | | Plane N | | > > | | DeGamma | | Degamma | | Degamma | | > > | +---+-----+ +---+-------+ +---+------+ | > > | | | | | > > | +---v-----+ +---v-------+ +---v------+ | > > | |Plane A | | Plane B | | Plane N | | > > | |CSC/CTM | | CSC/CTM | | CSC/CTM | | > > | +---+-----+ +----+------+ +----+-----+ | > > | | | | | > > | +---v-----+ +----v------+ +----v-----+ | > > | | Plane A | | Plane B | | Plane N | | > > | | Gamma | | Gamma | | Gamma | | > > | +---+-----+ +----+------+ +----+-----+ | > > | | | | | > > +--------------------------------------------+ > > +------v--------------v---------------v-------| > > > > || > > > > Pipe Blender || > > +--------------------+------------------------+ > > > | | > > > +-----------v----------+ | > > > | Pipe DeGamma | | > > > | | | > > > +-----------+----------+ | > > > | Pipe Color | > > > +-----------v----------+ Hardware | > > > | Pipe CSC/CTM | | > > > | | | > > > +-----------+----------+ | > > > | | > > > +-----------v----------+ | > > > | Pipe Gamma | | > > > | | | > > > +-----------+----------+ | > > > | | > > +---------------------------------------------+ > > | > > v > > Pipe Output > > > > 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. > > > > Userspace implementation using these properties have been done in drm > > hwcomposer by "Alexandru-Cosmin Gheorghe Alexandru-Cosmin.Gheorghe@xxxxxxx" > > from ARM. A merge request has been opened by Alexandru for drm_hwcomposer, > > implementing the property changes for the same. Please review that as well: > > https://gitlab.freedesktop.org/drm-hwcomposer/drm-hwcomposer/merge_requests/25 > > > > 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. > > > > v4: Rebase > > > > v5: Added "Display Color Hardware Pipeline" flow to kernel > > documentation as suggested by "Ville Syrjala" and "Brian Starkey". > > Moved the property creation to drm_color_mgmt.c file to consolidate > > all color operations at one place. Addressed Alexandru's review comments. > > > > v6: Rebase. Added support for ICL Color features. Enhanced Lut precision to > > accept input values in u32.32 format. This is needed for higher precision > > required in HDR data processing. > > > > v7: Fixed Lut roundup and extraction function in patch 1 and address > > definitions for Degamma index in patch 10. Rest of the patches are just > > rebased. > > > > I can't find any comments on this one. > > What's the status of this? > > Thanks, > Eze > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
