[PATCH v1 3/4] pipeline: rpi: Add new stream flags for PiSP

[Kieran Bingham]

Quoting Naushir Patuck (2025-01-13 09:24:45)
> Add the following new stream flags:
> 
> Needs16bitEndianSwap - Indicates that a 16-bit endian swap needs to be
> performed on the framebuffer in software.
> 
> Needs14bitUnpack - Indicates that a CSI-2 14-bit unpacking (to 16-bits)
> needs to be performed on the framebuffer in software.
> 
> These are to workaround hardware restrictions in the CFE hardware that
> will be supported in a future commit.
> 
> Signed-off-by: Naushir Patuck <naush at raspberrypi.com>


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

> ---
>  src/libcamera/pipeline/rpi/common/rpi_stream.h | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/src/libcamera/pipeline/rpi/common/rpi_stream.h b/src/libcamera/pipeline/rpi/common/rpi_stream.h
> index a13d5dc0d5e9..0dba12961743 100644
> --- a/src/libcamera/pipeline/rpi/common/rpi_stream.h
> +++ b/src/libcamera/pipeline/rpi/common/rpi_stream.h
> @@ -82,6 +82,16 @@ public:
>                  * to be applied after ISP processing.
>                  */
>                 Needs32bitConv  = (1 << 4),
> +               /*
> +                * Indicates that the input stream needs a software 16-bit endian
> +                * conversion to be applied before ISP processing.
> +                */
> +               Needs16bitEndianSwap = (1 << 5),
> +               /*
> +                * Indicates that the input stream needs a software 14-bit to
> +                * 16-bit unpacking.
> +                */
> +               Needs14bitUnpack = (1 << 6),
>         };
>  
>         using StreamFlags = Flags<StreamFlag>;
> -- 
> 2.43.0
>