Hi Tomi,
Thank you for the patch.
On Mon, Dec 19, 2022 at 04:01:33PM +0200, Tomi Valkeinen wrote:
> Add XBGR2101010, ABGR2101010 and BGRA1010102 formats.
>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@xxxxxxxxxxxxxxxx>
> ---
> .../userspace-api/media/v4l/pixfmt-rgb.rst | 194 ++++++++++++++++++
> drivers/media/v4l2-core/v4l2-ioctl.c | 3 +
> include/uapi/linux/videodev2.h | 3 +
> 3 files changed, 200 insertions(+)
>
> diff --git a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
> index 30f51cd33f99..de78cd2dcd73 100644
> --- a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
> +++ b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
> @@ -763,6 +763,200 @@ nomenclature that instead use the order of components as seen in a 24- or
> \normalsize
>
>
> +10 Bits Per Component
> +=====================
> +
> +These formats store a 30-bit RGB triplet with an optional 2 bit alpha in four
> +bytes. They are named based on the order of the RGB components as seen in a
> +32-bit word, which is then stored in memory in little endian byte order
> +(unless otherwise noted by the presence of bit 31 in the 4CC value), and on the
> +number of bits for each component.
> +
> +.. raw:: latex
> +
> + \begingroup
> + \tiny
> + \setlength{\tabcolsep}{2pt}
> +
> +.. tabularcolumns:: |p{2.8cm}|p{2.0cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|p{0.22cm}|
> +
> +
> +.. flat-table:: RGB Formats 10 Bits Per Color Component
> + :header-rows: 2
> + :stub-columns: 0
> +
> + * - Identifier
> + - Code
> + - :cspan:`7` Byte 0 in memory
> + - :cspan:`7` Byte 1
> + - :cspan:`7` Byte 2
> + - :cspan:`7` Byte 3
> + * -
> + -
> + - 7
> + - 6
> + - 5
> + - 4
> + - 3
> + - 2
> + - 1
> + - 0
> +
> + - 7
> + - 6
> + - 5
> + - 4
> + - 3
> + - 2
> + - 1
> + - 0
> +
> + - 7
> + - 6
> + - 5
> + - 4
> + - 3
> + - 2
> + - 1
> + - 0
> +
> + - 7
> + - 6
> + - 5
> + - 4
> + - 3
> + - 2
> + - 1
> + - 0
> + * .. _V4L2-PIX-FMT-XBGR2101010:
> +
> + - ``V4L2_PIX_FMT_XBGR2101010``
> + - 'RX30'
> +
> + - b\ :sub:`5`
> + - b\ :sub:`4`
> + - b\ :sub:`3`
> + - b\ :sub:`2`
> + - b\ :sub:`1`
> + - b\ :sub:`0`
> + - x
> + - x
> +
> + - g\ :sub:`3`
> + - g\ :sub:`2`
> + - g\ :sub:`1`
> + - g\ :sub:`0`
> + - b\ :sub:`9`
> + - b\ :sub:`8`
> + - b\ :sub:`7`
> + - b\ :sub:`6`
> +
> + - r\ :sub:`1`
> + - r\ :sub:`0`
> + - g\ :sub:`9`
> + - g\ :sub:`8`
> + - g\ :sub:`7`
> + - g\ :sub:`6`
> + - g\ :sub:`5`
> + - g\ :sub:`4`
> +
> + - r\ :sub:`9`
> + - r\ :sub:`8`
> + - r\ :sub:`7`
> + - r\ :sub:`6`
> + - r\ :sub:`5`
> + - r\ :sub:`4`
> + - r\ :sub:`3`
> + - r\ :sub:`2`
> + -
This doesn't match the text above. This would be RGBX2101010. I'm not
sure which format you want, so I don't know if it's the documentation or
the format name that is incorrect. The next two formats also seem
incorrect to me.
> + * .. _V4L2-PIX-FMT-ABGR2101010:
> +
> + - ``V4L2_PIX_FMT_ABGR2101010``
> + - 'RA30'
> +
> + - b\ :sub:`5`
> + - b\ :sub:`4`
> + - b\ :sub:`3`
> + - b\ :sub:`2`
> + - b\ :sub:`1`
> + - b\ :sub:`0`
> + - a\ :sub:`1`
> + - a\ :sub:`0`
> +
> + - g\ :sub:`3`
> + - g\ :sub:`2`
> + - g\ :sub:`1`
> + - g\ :sub:`0`
> + - b\ :sub:`9`
> + - b\ :sub:`8`
> + - b\ :sub:`7`
> + - b\ :sub:`6`
> +
> + - r\ :sub:`1`
> + - r\ :sub:`0`
> + - g\ :sub:`9`
> + - g\ :sub:`8`
> + - g\ :sub:`7`
> + - g\ :sub:`6`
> + - g\ :sub:`5`
> + - g\ :sub:`4`
> +
> + - r\ :sub:`9`
> + - r\ :sub:`8`
> + - r\ :sub:`7`
> + - r\ :sub:`6`
> + - r\ :sub:`5`
> + - r\ :sub:`4`
> + - r\ :sub:`3`
> + - r\ :sub:`2`
> + -
> + * .. _V4L2-PIX-FMT-BGRA1010102:
> +
> + - ``V4L2_PIX_FMT_BGRA1010102``
> + - 'AR30'
> +
> + - b\ :sub:`7`
> + - b\ :sub:`6`
> + - b\ :sub:`5`
> + - b\ :sub:`4`
> + - b\ :sub:`3`
> + - b\ :sub:`2`
> + - b\ :sub:`1`
> + - b\ :sub:`0`
> +
> + - g\ :sub:`5`
> + - g\ :sub:`4`
> + - g\ :sub:`3`
> + - g\ :sub:`2`
> + - g\ :sub:`1`
> + - g\ :sub:`0`
> + - b\ :sub:`9`
> + - b\ :sub:`8`
> +
> + - r\ :sub:`3`
> + - r\ :sub:`2`
> + - r\ :sub:`1`
> + - r\ :sub:`0`
> + - g\ :sub:`9`
> + - g\ :sub:`8`
> + - g\ :sub:`7`
> + - g\ :sub:`6`
> +
> + - a\ :sub:`1`
> + - a\ :sub:`0`
> + - r\ :sub:`9`
> + - r\ :sub:`8`
> + - r\ :sub:`7`
> + - r\ :sub:`6`
> + - r\ :sub:`5`
> + - r\ :sub:`4`
> + -
> +
> +.. raw:: latex
> +
> + \endgroup
> +
> +
> Deprecated RGB Formats
> ======================
>
> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
> index fddba75d9074..964300deaf62 100644
> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
> @@ -1304,6 +1304,9 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
> case V4L2_PIX_FMT_BGRX32: descr = "32-bit XBGR 8-8-8-8"; break;
> case V4L2_PIX_FMT_RGBA32: descr = "32-bit RGBA 8-8-8-8"; break;
> case V4L2_PIX_FMT_RGBX32: descr = "32-bit RGBX 8-8-8-8"; break;
> + case V4L2_PIX_FMT_XBGR2101010: descr = "32-bit XBGR 2-10-10-10"; break;
> + case V4L2_PIX_FMT_ABGR2101010: descr = "32-bit ABGR 2-10-10-10"; break;
> + case V4L2_PIX_FMT_BGRA1010102: descr = "32-bit BGRA 10-10-10-2"; break;
> case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
> case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 29da1f4b4578..877fd61693b8 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -576,6 +576,9 @@ struct v4l2_pix_format {
> #define V4L2_PIX_FMT_RGBX32 v4l2_fourcc('X', 'B', '2', '4') /* 32 RGBX-8-8-8-8 */
> #define V4L2_PIX_FMT_ARGB32 v4l2_fourcc('B', 'A', '2', '4') /* 32 ARGB-8-8-8-8 */
> #define V4L2_PIX_FMT_XRGB32 v4l2_fourcc('B', 'X', '2', '4') /* 32 XRGB-8-8-8-8 */
> +#define V4L2_PIX_FMT_XBGR2101010 v4l2_fourcc('R', 'X', '3', '0') /* 32 XBGR-2-10-10-10 */
> +#define V4L2_PIX_FMT_ABGR2101010 v4l2_fourcc('R', 'A', '3', '0') /* 32 ABGR-2-10-10-10 */
> +#define V4L2_PIX_FMT_BGRA1010102 v4l2_fourcc('A', 'R', '3', '0') /* 32 BGRA-10-10-10-2 */
>
> /* Grey formats */
> #define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */
--
Regards,
Laurent Pinchart
