[libcamera-devel] [PATCH v3 2/9] libcamera: formats: Add R10 and R12 formats

[Kieran Bingham]

Quoting Naushir Patuck (2021-10-27 10:27:56)
> From: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> 
> These new formats corresponds to the V4L2 V4L2_PIX_FMT_Y10 and
> V4L2_PIX_FMT_Y12 formats, and are the little-endian version of the
> DRM_FORMAT_R10 and DRM_FORMAT_R12 formats.
> 

Assuming the DRM format names aren't going to be likely to change:

Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com>

> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> Signed-off-by: Naushir Patuck <naush at raspberrypi.com>
> ---
>  src/libcamera/formats.cpp          | 26 ++++++++++++++++++++++++++
>  src/libcamera/formats.yaml         |  4 ++++
>  src/libcamera/v4l2_pixelformat.cpp |  4 ++++
>  3 files changed, 34 insertions(+)
> 
> diff --git a/src/libcamera/formats.cpp b/src/libcamera/formats.cpp
> index 1c29e1f2c5ab..9f96e9dc4e41 100644
> --- a/src/libcamera/formats.cpp
> +++ b/src/libcamera/formats.cpp
> @@ -484,6 +484,32 @@ const std::map<PixelFormat, PixelFormatInfo> pixelFormatInfo{
>                 .pixelsPerGroup = 1,
>                 .planes = {{ { 1, 1 }, { 0, 0 }, { 0, 0 } }},
>         } },
> +       { formats::R10, {
> +               .name = "R10",
> +               .format = formats::R10,
> +               .v4l2Formats = {
> +                       .single = V4L2PixelFormat(V4L2_PIX_FMT_Y10),
> +                       .multi = V4L2PixelFormat(),
> +               },
> +               .bitsPerPixel = 10,
> +               .colourEncoding = PixelFormatInfo::ColourEncodingYUV,
> +               .packed = false,
> +               .pixelsPerGroup = 1,
> +               .planes = {{ { 2, 1 }, { 0, 0 }, { 0, 0 } }},
> +       } },
> +       { formats::R12, {
> +               .name = "R12",
> +               .format = formats::R12,
> +               .v4l2Formats = {
> +                       .single = V4L2PixelFormat(V4L2_PIX_FMT_Y12),
> +                       .multi = V4L2PixelFormat(),
> +               },
> +               .bitsPerPixel = 10,
> +               .colourEncoding = PixelFormatInfo::ColourEncodingYUV,
> +               .packed = false,
> +               .pixelsPerGroup = 1,
> +               .planes = {{ { 2, 1 }, { 0, 0 }, { 0, 0 } }},
> +       } },
>  
>         /* Bayer formats. */
>         { formats::SBGGR8, {
> diff --git a/src/libcamera/formats.yaml b/src/libcamera/formats.yaml
> index 43b5877e08f2..22a8e473a183 100644
> --- a/src/libcamera/formats.yaml
> +++ b/src/libcamera/formats.yaml
> @@ -7,6 +7,10 @@
>  formats:
>    - R8:
>        fourcc: DRM_FORMAT_R8
> +  - R10:
> +      fourcc: DRM_FORMAT_R10
> +  - R12:
> +      fourcc: DRM_FORMAT_R12
>  
>    - RGB565:
>        fourcc: DRM_FORMAT_RGB565
> diff --git a/src/libcamera/v4l2_pixelformat.cpp b/src/libcamera/v4l2_pixelformat.cpp
> index 3649c6002620..0e0da3f0df07 100644
> --- a/src/libcamera/v4l2_pixelformat.cpp
> +++ b/src/libcamera/v4l2_pixelformat.cpp
> @@ -117,6 +117,10 @@ const std::map<V4L2PixelFormat, V4L2PixelFormat::Info> vpf2pf{
>         /* Greyscale formats. */
>         { V4L2PixelFormat(V4L2_PIX_FMT_GREY),
>                 { formats::R8, "8-bit Greyscale" } },
> +       { V4L2PixelFormat(V4L2_PIX_FMT_Y10),
> +               { formats::R10, "10-bit Greyscale" } },
> +       { V4L2PixelFormat(V4L2_PIX_FMT_Y12),
> +               { formats::R12, "12-bit Greyscale" } },
>  
>         /* Bayer formats. */
>         { V4L2PixelFormat(V4L2_PIX_FMT_SBGGR8),
> -- 
> 2.25.1
>