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drm/uapi: Document CTM matrix better

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Document in which order the CTM matrix elements are stored.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230411222931.15127-2-ville.syrjala@linux.intel.com
Reviewed-by: Xaver Hugl <xaver.hugl@gmail.com>
Acked-by: Simon Ser <contact@emersion.fr>
This commit is contained in:
Ville Syrjälä 2023-04-12 01:29:26 +03:00
parent 4b733b2c38
commit 99e7e3b600
1 changed files with 5 additions and 0 deletions
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5
include/uapi/drm/drm_mode.h
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@ -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];
};