[PATCH 1/2] gallium/util: implement util_format_is_yuv

[Philipp Zabel]

On Thu, 2018-03-29 at 16:15 +0200, Lucas Stach wrote:
> This adds a helper to check if a pipe format is in YUV color space.
> Drivers want to know about this, as YUV mostly needs special handling.
> 
> Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
> ---
>  src/gallium/auxiliary/util/u_format.h | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h
> index 88bfd72d0538..e497b4b3375a 100644
> --- a/src/gallium/auxiliary/util/u_format.h
> +++ b/src/gallium/auxiliary/util/u_format.h
> @@ -557,6 +557,18 @@ util_format_is_depth_and_stencil(enum pipe_format format)
>            util_format_has_stencil(desc);
>  }
>  
> +static inline boolean
> +util_format_is_yuv(enum pipe_format format)
> +{
> +   const struct util_format_description *desc = util_format_description(format);
> +
> +   assert(desc);
> +   if (!desc) {
> +      return FALSE;
> +   }
> +
> +   return desc->colorspace == UTIL_FORMAT_COLORSPACE_YUV;
> +}
>  
>  /**
>   * Calculates the depth format type based upon the incoming format description.

Reviewed-by: Philipp Zabel <p.zabel at pengutronix.de>

regards
Philipp