[v8,06/25] drm: Add drm structures for palette color property

Commit Message

Sharma, Shashank Dec. 3, 2015, 11:36 a.m. UTC

This patch adds new structures in DRM layer for Palette color
correction.These structures will be used by user space agents
to configure appropriate number of samples and Palette LUT for
a platform.

Signed-off-by: Shashank Sharma <[e-mail]>
Signed-off-by: Kausal Malladi <[e-mail]>
---
 include/uapi/drm/drm.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

Patch

diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h
index 3801584..3dce251 100644
--- a/include/uapi/drm/drm.h
+++ b/include/uapi/drm/drm.h
@@ -829,6 +829,26 @@  struct drm_event_vblank {
 	__u32 reserved;
 };
 
+struct drm_r32g32b32 {
+	/*
+	 * Data is in U8.24 fixed point format.
+	 * All platforms support values within [0, 1.0] range,
+	 * for Red, Green and Blue colors.
+	 */
+	__u32 r32;
+	__u32 g32;
+	__u32 b32;
+	__u32 reserved;
+};
+
+struct drm_palette {
+	/*
+	 * Starting of palette LUT in R32G32B32 format.
+	 * Each of RGB value is in U8.24 fixed point format.
+	 */
+	struct drm_r32g32b32 lut[0];
+};
+
 /* typedef area */
 #ifndef __KERNEL__
 typedef struct drm_clip_rect drm_clip_rect_t;