diff options
| author | Alex Hung <alex.hung@amd.com> | 2025-11-14 17:02:02 -0700 |
|---|---|---|
| committer | Simon Ser <contact@emersion.fr> | 2025-11-26 23:03:35 +0100 |
| commit | 99a4e4f08abe253a7812e4872882a75cecd87703 (patch) | |
| tree | bcd5a20c7a94954588944656d2d08f4eb379e24e /drivers/gpu/drm/drm_atomic_uapi.c | |
| parent | 94529775135c301efff78373310102f47f3c8671 (diff) | |
drm/colorop: Add 1D Curve Custom LUT type
We've previously introduced DRM_COLOROP_1D_CURVE for
pre-defined 1D curves. But we also have HW that supports
custom curves and userspace needs the ability to pass
custom curves, aka LUTs.
This patch introduces a new colorop type, called
DRM_COLOROP_1D_LUT that provides a SIZE property which
is used by a driver to advertise the supported SIZE
of the LUT, as well as a DATA property which userspace
uses to set the LUT.
DATA and size function in the same way as current drm_crtc
GAMMA and DEGAMMA LUTs.
Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Co-developed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patch.msgid.link/20251115000237.3561250-38-alex.hung@amd.com
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_uapi.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_uapi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index 6f4345b9b2a3..b9045b17fa62 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -699,6 +699,9 @@ static int drm_atomic_color_set_data_property(struct drm_colorop *colorop, bool replaced = false; switch (colorop->type) { + case DRM_COLOROP_1D_LUT: + size = colorop->size * sizeof(struct drm_color_lut32); + break; case DRM_COLOROP_CTM_3X4: size = sizeof(struct drm_color_ctm_3x4); break; @@ -750,6 +753,8 @@ drm_atomic_colorop_get_property(struct drm_colorop *colorop, *val = state->bypass; else if (property == colorop->curve_1d_type_property) *val = state->curve_1d_type; + else if (property == colorop->size_property) + *val = colorop->size; else if (property == colorop->data_property) *val = (state->data) ? state->data->base.id : 0; else |