From 99e7e3b60080d913ff2f94943f4af1f1b76a1c06 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Wed, 12 Apr 2023 01:29:26 +0300 Subject: [PATCH] drm/uapi: Document CTM matrix better MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Document in which order the CTM matrix elements are stored. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20230411222931.15127-2-ville.syrjala@linux.intel.com Reviewed-by: Xaver Hugl Acked-by: Simon Ser --- include/uapi/drm/drm_mode.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index 46becedf5b2f..43691058d28f 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -834,6 +834,11 @@ struct drm_color_ctm { /* * Conversion matrix in S31.32 sign-magnitude * (not two's complement!) format. + * + * out matrix in + * |R| |0 1 2| |R| + * |G| = |3 4 5| x |G| + * |B| |6 7 8| |B| */ __u64 matrix[9]; }; -- 2.25.1