[igt-dev] [RFC PATCH v3 00/12] IGT tests for the KMS Color Pipeline API

[Harry Wentland <harry.wentland@amd.com>]

This series introduces support for
* drm_colorop DRM objects
* COLOR_PIPELINE plane property

Kernel changes:
https://gitlab.freedesktop.org/hwentland/linux/-/merge_requests/5

It also adds a new kms_colorop test case that tests the color pipeline
API. The tests are designed to be easily extensible with a "transform"
and "compare" function pointer for each test. The "transform" function
performs the transformations under test via SW routines. The "compare"
function compares the DRM/KMS result (via a writeback connector) with
the result derived via the SW "transform".

There are three tests for LUTs:
 - plane-srgb_eotf: pre-blending sRGB EOTF
 - plane-srgb_inv_eotf: pre-blending sRGB Inverse EOTF
 - plane-srgb_eotf-srgb_inv_eotf: pre-blending sRGB EOTF,
   followed by its inverse

And a number of tests for matrices.

v3:
 - Remove need for IOCTLs and libdrm changes
 - Test colorop properties with both atomic and legacy code paths
 - move enum drm_colorop_type to drm_mode.h
 - Add descriptions for public functions in lib (Kamil)
 - Use SPDX style license identifier (Kamil)
 - Replace Skia license comment with copyright note in file header
 - Fix kms_colorop subtests if applicable color pipeline not found

Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Pekka Paalanen <pekka.paalanen@collabora.com>
Cc: Simon Ser <contact@emersion.fr>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Melissa Wen <mwen@igalia.com>
Cc: Jonas Ådahl <jadahl@redhat.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Shashank Sharma <shashank.sharma@amd.com>
Cc: Alexander Goins <agoins@nvidia.com>
Cc: Joshua Ashton <joshua@froggi.es>
Cc: Michel Dänzer <mdaenzer@redhat.com>
Cc: Aleix Pol <aleixpol@kde.org>
Cc: Xaver Hugl <xaver.hugl@gmail.com>
Cc: Victoria Brekenfeld <victoria@system76.com>
Cc: Sima <daniel@ffwll.ch>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Naseer Ahmed <quic_naseer@quicinc.com>
Cc: Christopher Braga <quic_cbraga@quicinc.com>
Cc: Abhinav Kumar <quic_abhinavk@quicinc.com>
Cc: Arthur Grillo <arthurgrillo@riseup.net>
Cc: Hector Martin <marcan@marcan.st>
Cc: Liviu Dudau <Liviu.Dudau@arm.com>
Cc: Sasha McIntosh <sashamcintosh@google.com>

Harry Wentland (12):
  lib/drmtest: Add is_vkms_device()
  lib/igt_kms: Introduce DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE
  include/drm-uapi: Add COLOROP object
  lib/igt_kms: Introduce drm_colorop and COLOR_PIPELINE
  tests/kms_properties: Add colorop properties test
  igt/color: Add SW color transform functionality
  lib/igt_fb: Add copy_fb function
  tests/kms_colorop: Add kms_colorop tests
  drm-uapi: Add 3x4 CTM
  lib/igt_kms: Add support for DATA colorop property
  lib/igt_color: Add support for 3x4 matrices
  tests/kms_colorop: Add 3x4 CTM tests

 include/drm-uapi/drm.h      |  15 +
 include/drm-uapi/drm_mode.h |  22 ++
 lib/drmtest.c               |   5 +
 lib/drmtest.h               |   1 +
 lib/igt_color.c             | 344 +++++++++++++++++++++++
 lib/igt_color.h             | 114 ++++++++
 lib/igt_fb.c                |  40 ++-
 lib/igt_fb.h                |   3 +
 lib/igt_kms.c               | 306 +++++++++++++++++++-
 lib/igt_kms.h               |  94 +++++++
 lib/meson.build             |   1 +
 tests/kms_colorop.c         | 539 ++++++++++++++++++++++++++++++++++++
 tests/kms_colorop.h         | 124 +++++++++
 tests/kms_properties.c      |  76 +++++
 tests/meson.build           |   1 +
 15 files changed, 1676 insertions(+), 9 deletions(-)
 create mode 100644 lib/igt_color.c
 create mode 100644 lib/igt_color.h
 create mode 100644 tests/kms_colorop.c
 create mode 100644 tests/kms_colorop.h

--
2.42.0