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color-lcms: rewrite misleading comment

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Update a comment explaining what we may do in the future when
cmsSmoothToneCurve() fails.

Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
This commit is contained in:
Leandro Ribeiro 2025-05-13 13:08:37 -03:00 • committed by Pekka Paalanen
parent 4393bec40a
commit e6289aee68
1 changed files with 3 additions and 3 deletions
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6
libweston/color-lcms/color-transform.c
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@ -1464,7 +1464,7 @@ build_shaper(cmsContext lcms_ctx, cmsHTRANSFORM cmap_3dlut,
/**
* We use cmsSmoothToneCurve() for:
*
* a) checking monotonicity and degenerated curves;
* a) trying to ensure monotonicity;
* b) getting rid of abrupt changes;
*
* A lambda between 0.0 and 1.0 is usually enough. 1.0 means moderate to
@ -1493,8 +1493,8 @@ build_shaper(cmsContext lcms_ctx, cmsHTRANSFORM cmap_3dlut,
}
/**
* TODO: that should fail if the curves are not monotonic. Try
* to make curve monotonic if possible before calling this.
* TODO: that should fail if the produced curves are not
* monotonic. Try to smooth harder if that happens.
*/
ret = cmsSmoothToneCurve(tc[ch], smoothing_param);
if (!ret)