48 lines
1.8 KiB
Diff
48 lines
1.8 KiB
Diff
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From afc91f0804ad1350fa09aa141b93020f28143b48 Mon Sep 17 00:00:00 2001
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From: Carlos Garnacho <carlosg@gnome.org>
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Date: Fri, 5 May 2017 12:15:30 +0000
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Subject: [PATCH] clutter: Avoid rounding compensation when invalidating 2D
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actors
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This allows the redraw clip to be more constrained, so MetaCullable doesn't
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end up rendering portions of window shadows, frame and background when a
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window invalidates (part of) its contents.
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https://bugzilla.gnome.org/show_bug.cgi?id=782344
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(cherry picked from commit a7df459416dc46321204c98197e4fd84724976e0)
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---
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clutter/clutter/clutter-paint-volume.c | 15 +++++++++++++++
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1 file changed, 15 insertions(+)
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diff --git a/clutter/clutter/clutter-paint-volume.c b/clutter/clutter/clutter-paint-volume.c
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index b48f7f9d6..f3405138b 100644
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--- a/clutter/clutter/clutter-paint-volume.c
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+++ b/clutter/clutter/clutter-paint-volume.c
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@@ -1166,6 +1166,21 @@ _clutter_paint_volume_get_stage_paint_box (ClutterPaintVolume *pv,
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_clutter_paint_volume_get_bounding_box (&projected_pv, box);
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+ if (pv->is_2d && pv->actor &&
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+ clutter_actor_get_z_position (pv->actor) == 0)
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+ {
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+ /* If the volume/actor are perfectly 2D, take the bounding box as
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+ * good. We won't need to add any extra room for sub-pixel positioning
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+ * in this case.
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+ */
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+ clutter_paint_volume_free (&projected_pv);
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+ box->x1 = CLUTTER_NEARBYINT (box->x1);
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+ box->y1 = CLUTTER_NEARBYINT (box->y1);
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+ box->x2 = CLUTTER_NEARBYINT (box->x2);
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+ box->y2 = CLUTTER_NEARBYINT (box->y2);
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+ return;
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+ }
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+
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/* The aim here is that for a given rectangle defined with floating point
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* coordinates we want to determine a stable quantized size in pixels
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* that doesn't vary due to the original box's sub-pixel position.
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--
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2.18.1
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