diff options
| author | Alex Hung <alex.hung@amd.com> | 2025-11-14 17:02:10 -0700 |
|---|---|---|
| committer | Simon Ser <contact@emersion.fr> | 2025-11-26 23:09:42 +0100 |
| commit | db971856bbe0263d0ba78d641ea66d4fcdfc8fc3 (patch) | |
| tree | 3eec108475720aa61cb6e758a4add1f61fa5a482 /include/uapi | |
| parent | 2468963482d844f0657a52f791f15ceb953e5880 (diff) | |
drm/colorop: Add 3D LUT support to color pipeline
It is to be used to enable HDR by allowing userpace to create and pass
3D LUTs to kernel and hardware.
new drm_colorop_type: DRM_COLOROP_3D_LUT.
Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patch.msgid.link/20251115000237.3561250-46-alex.hung@amd.com
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/drm/drm_mode.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index 4b38da880fc7..cbbbfc1dfe2b 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -942,6 +942,40 @@ enum drm_colorop_type { * property. */ DRM_COLOROP_MULTIPLIER, + + /** + * @DRM_COLOROP_3D_LUT: + * + * enum string "3D LUT" + * + * A 3D LUT of &drm_color_lut32 entries, + * packed into a blob via the DATA property. The driver's expected + * LUT size is advertised via the SIZE property, i.e., a 3D LUT with + * 17x17x17 entries will have SIZE set to 17. + * + * The DATA blob is a 3D array of struct drm_color_lut32 with dimension + * length of "size". + * The LUT elements are traversed like so: + * + * for B in range 0..n + * for G in range 0..n + * for R in range 0..n + * index = R + n * (G + n * B) + * color = lut3d[index] + */ + DRM_COLOROP_3D_LUT, +}; + +/** + * enum drm_colorop_lut3d_interpolation_type - type of 3DLUT interpolation + */ +enum drm_colorop_lut3d_interpolation_type { + /** + * @DRM_COLOROP_LUT3D_INTERPOLATION_TETRAHEDRAL: + * + * Tetrahedral 3DLUT interpolation + */ + DRM_COLOROP_LUT3D_INTERPOLATION_TETRAHEDRAL, }; /** |