Unverified Commit 1aa93cfb authored by Jacopo Mondi's avatar Jacopo Mondi Committed by Javier Martinez Canillas
Browse files

drm/fourcc: Add RGB161616 and BGR161616 formats 



Add FourCC definitions for the 48-bit RGB/BGR formats to the
DRM/KMS uapi.

The format will be used by the Raspberry Pi PiSP Back End,
supported by a V4L2 driver in kernel space and by libcamera in
userspace, which uses the DRM FourCC identifiers.

Signed-off-by: default avatarJacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: default avatarRob Clark <robin.clark@oss.qualcomm.com>
Reviewed-by: default avatarSimon Ser <contact@emersion.fr>
Reviewed-by: default avatarNaushir Patuck <naush@raspberrypi.com>
Link: https://lore.kernel.org/r/20240226132544.82817-1-jacopo.mondi@ideasonboard.com


Signed-off-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
parent 8ad00a81

drivers/gpu/drm/drm_fourcc.c

+8 −0
Original line number Diff line number Diff line
@@ -238,6 +238,14 @@ const struct drm_format_info *__drm_format_info(u32 format) 
		{ .format = DRM_FORMAT_ABGR2101010,	.depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },

		{ .format = DRM_FORMAT_RGBA1010102,	.depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },

		{ .format = DRM_FORMAT_BGRA1010102,	.depth = 30, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },

		{ .format = DRM_FORMAT_RGB161616,	.depth = 0,

		  .num_planes = 1, .char_per_block = { 6, 0, 0 },

		  .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 },

		  .hsub = 1, .vsub = 1, .has_alpha = false },

		{ .format = DRM_FORMAT_BGR161616,	.depth = 0,

		  .num_planes = 1, .char_per_block = { 6, 0, 0 },

		  .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 },

		  .hsub = 1, .vsub = 1, .has_alpha = false },

		{ .format = DRM_FORMAT_ARGB8888,	.depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },

		{ .format = DRM_FORMAT_ABGR8888,	.depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },

		{ .format = DRM_FORMAT_RGBA8888,	.depth = 32, .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },

include/uapi/drm/drm_fourcc.h

+4 −0
Original line number Diff line number Diff line
@@ -210,6 +210,10 @@ extern "C" { 
#define DRM_FORMAT_RGBA1010102	fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */

#define DRM_FORMAT_BGRA1010102	fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */



/* 48 bpp RGB */

#define DRM_FORMAT_RGB161616 fourcc_code('R', 'G', '4', '8') /* [47:0] R:G:B 16:16:16 little endian */

#define DRM_FORMAT_BGR161616 fourcc_code('B', 'G', '4', '8') /* [47:0] B:G:R 16:16:16 little endian */



/* 64 bpp RGB */

#define DRM_FORMAT_XRGB16161616	fourcc_code('X', 'R', '4', '8') /* [63:0] x:R:G:B 16:16:16:16 little endian */

#define DRM_FORMAT_XBGR16161616	fourcc_code('X', 'B', '4', '8') /* [63:0] x:B:G:R 16:16:16:16 little endian */