Re: [PATCH v2] drm/format-helper: Make conversion_buf_size() support sub-byte pixel fmts

From: Javier Martinez Canillas
Date: Fri Mar 10 2023 - 06:47:37 EST


Javier Martinez Canillas <javierm@xxxxxxxxxx> writes:

> There are DRM fourcc formats that have pixels smaller than a byte, but the
> conversion_buf_size() function assumes that pixels are a multiple of bytes
> and use the struct drm_format_info .cpp field to calculate the dst_pitch.
>
> Instead, calculate it by using the bits per pixel (bpp) and divide it by 8
> to account for formats that have sub-byte pixels.
>
> Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
> ---

Pushed to drm-misc (drm-misc-next). Thanks!

--
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat