[RFC v4 17/22] drm-uapi: Add custom 1D LUT

[Bhanuprakash Modem]

Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem at intel.com>
---
 include/drm-uapi/drm_mode.h | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/include/drm-uapi/drm_mode.h b/include/drm-uapi/drm_mode.h
index 476c1a7be..7def05fe8 100644
--- a/include/drm-uapi/drm_mode.h
+++ b/include/drm-uapi/drm_mode.h
@@ -874,8 +874,37 @@ struct drm_color_lut {
 	__u16 reserved;
 };
 
+/*
+ * Creating 64 bit palette entries for better data
+ * precision. This will be required for HDR and
+ * similar color processing usecases.
+ */
+struct drm_color_lut_ext {
+	/*
+	 * Data is U32.32 fixed point format.
+	 */
+	__u64 red;
+	__u64 green;
+	__u64 blue;
+	__u64 reserved;
+};
+
+struct drm_color_lut_range {
+	/* DRM_MODE_LUT_* */
+	__u32 flags;
+	/* number of points on the curve */
+	__u16 count;
+	/* input/output bits per component */
+	__u8 input_bpc, output_bpc;
+	/* input start/end values */
+	__s32 start, end;
+	/* output min/max values */
+	__s32 min, max;
+};
+
 enum drm_colorop_type {
 	DRM_COLOROP_1D_CURVE,
+	DRM_COLOROP_1D_LUT,
 	DRM_COLOROP_CTM_3X3,
 	DRM_COLOROP_CTM_3X4,
 };
-- 
2.43.0