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stage: Clamp to pixel the redraw clip taking care of the floored coords

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When we floor the quad coordinates then we've also to enlarge the quad by the
difference between the floored value and the actual coordinate, otherwise
we'd end up in a smaller quad.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/3
This commit is contained in:
Marco Trevisan (Treviño) 2019-02-28 22:50:50 +01:00 committed by Marco Trevisan
parent d7ec5d3022
commit f4c2b69934
1 changed files with 5 additions and 0 deletions
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5
src/backends/meta-stage.c
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@ -225,6 +225,11 @@ queue_redraw_clutter_rect (MetaStage *stage,
.height = ceilf (rect->size.height)
};
/* Since we're flooring the coordinates, we need to enlarge the clip by the
* difference between the actual coordinate and the floored value */
clip.width += ceilf (rect->origin.x - clip.x) * 2;
clip.height += ceilf (rect->origin.y - clip.y) * 2;
clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stage), &clip);
}