diff mbox series

[RFC,1/5] drm: Add 3D LUT mode and its attributes

Message ID 20221004211451.1475215-2-alex.hung@amd.com (mailing list archive)
State New, archived
Headers show
Series Proposal for Pre-blending 3D LUT interfaces | expand

Commit Message

Alex Hung Oct. 4, 2022, 9:14 p.m. UTC 
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@amd.com>
---
 include/uapi/drm/drm_mode.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
diff mbox series

Patch

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