diff options
| author | Uma Shankar <uma.shankar@intel.com> | 2025-11-14 17:02:00 -0700 |
|---|---|---|
| committer | Simon Ser <contact@emersion.fr> | 2025-11-26 23:03:35 +0100 |
| commit | 621c45ca12ed9bd5a8ef434925fe51c319c6e28d (patch) | |
| tree | 1ff9e68033e6701998b9ca6a7073ad8e63bd150d /include/drm | |
| parent | ec891d8bffa8e364854ab3a9943d7070d53e4c56 (diff) | |
drm: Add Enhanced LUT precision structure
Existing LUT precision structure drm_color_lut has only 16 bit
precision. This is not enough for upcoming enhanced hardwares
and advance usecases like HDR processing. Hence added a new
structure with 32 bit precision values.
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patch.msgid.link/20251115000237.3561250-36-alex.hung@amd.com
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_color_mgmt.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/drm/drm_color_mgmt.h b/include/drm/drm_color_mgmt.h index eccb71ab335a..527582c20885 100644 --- a/include/drm/drm_color_mgmt.h +++ b/include/drm/drm_color_mgmt.h @@ -72,6 +72,18 @@ static inline int drm_color_lut_size(const struct drm_property_blob *blob) return blob->length / sizeof(struct drm_color_lut); } +/** + * drm_color_lut32_size - calculate the number of entries in the extended LUT + * @blob: blob containing the LUT + * + * Returns: + * The number of entries in the color LUT stored in @blob. + */ +static inline int drm_color_lut32_size(const struct drm_property_blob *blob) +{ + return blob->length / sizeof(struct drm_color_lut32); +} + enum drm_color_encoding { DRM_COLOR_YCBCR_BT601, DRM_COLOR_YCBCR_BT709, @@ -146,4 +158,5 @@ void drm_crtc_load_palette_8(struct drm_crtc *crtc, const struct drm_color_lut * void drm_crtc_fill_palette_332(struct drm_crtc *crtc, drm_crtc_set_lut_func set_palette); void drm_crtc_fill_palette_8(struct drm_crtc *crtc, drm_crtc_set_lut_func set_palette); +int drm_color_lut32_check(const struct drm_property_blob *lut, u32 tests); #endif |