A struct is defined for 3D LUT modes to be supported by hardware.
The elements includes lut_isze, lut_stride, bit_depth, color_format
and flags.
Note: A patchset "IGT tests for pre-blending 3D LUT interfaces" for this
proposal is sent to IGT mailing list.
Signed-off-by: Alex Hung <alex.hung@xxxxxxx>
---
include/uapi/drm/drm_mode.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index d0ce48d2e732..334e8a9b49cc 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -877,6 +877,23 @@ struct drm_color_lut_ext {
__u64 reserved;
};
+/*
+ * struct drm_mode_3dlut_mode - 3D LUT mode information.
+ * @lut_size: number of valid points on every dimension of 3D LUT.
+ * @lut_stride: number of points on every dimension of 3D LUT.
+ * @bit_depth: number of bits of RGB. If color_mode defines entries with higher
+ * bit_depth the least significant bits will be truncated.
+ * @color_format: fourcc values, ex. DRM_FORMAT_XRGB16161616 or DRM_FORMAT_XBGR16161616.
+ * @flags: flags for hardware-sepcific features
+ */
+struct drm_mode_3dlut_mode {
+ __u16 lut_size;
+ __u16 lut_stride[3];
+ __u16 bit_depth;
+ __u32 color_format;
+ __u32 flags;
+};
+
#define DRM_MODE_PAGE_FLIP_EVENT 0x01
#define DRM_MODE_PAGE_FLIP_ASYNC 0x02
#define DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE 0x4
--
2.37.3
