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st/viewport: Keep painting, clipping and transforms pixel-aligned

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Which means adjustments always converted to ints in the same way.

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6835
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2828>
This commit is contained in:
Daniel van Vugt 2023-07-17 17:01:42 +08:00 committed by Marge Bot
parent cd7d99dd6b
commit f22f5d902c
1 changed files with 8 additions and 8 deletions
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16
src/st/st-viewport.c
View File

@ -370,10 +370,10 @@ st_viewport_apply_transform (ClutterActor *actor,
graphene_point3d_t p = GRAPHENE_POINT3D_INIT_ZERO;
if (priv->hadjustment)
p.x = -get_hadjustment_value (viewport);
p.x = -(int)get_hadjustment_value (viewport);
if (priv->vadjustment)
p.y = -st_adjustment_get_value (priv->vadjustment);
p.y = -(int)st_adjustment_get_value (priv->vadjustment);
graphene_matrix_translate (matrix, &p);
@ -384,8 +384,8 @@ st_viewport_apply_transform (ClutterActor *actor,
* up or the background and borders will be drawn in the wrong place */
static void
get_border_paint_offsets (StViewport *viewport,
double *x,
double *y)
int *x,
int *y)
{
StViewportPrivate *priv = st_viewport_get_instance_private (viewport);
@ -408,7 +408,7 @@ st_viewport_paint (ClutterActor *actor,
StViewport *viewport = ST_VIEWPORT (actor);
StViewportPrivate *priv = st_viewport_get_instance_private (viewport);
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
double x, y;
int x, y;
ClutterActorBox allocation_box;
ClutterActorBox content_box;
ClutterActor *child;
@ -418,7 +418,7 @@ st_viewport_paint (ClutterActor *actor,
if (x != 0 || y != 0)
{
cogl_framebuffer_push_matrix (fb);
cogl_framebuffer_translate (fb, (int)x, (int)y, 0);
cogl_framebuffer_translate (fb, x, y, 0);
}
st_widget_paint_background (ST_WIDGET (actor), paint_context);
@ -465,7 +465,7 @@ st_viewport_pick (ClutterActor *actor,
StViewport *viewport = ST_VIEWPORT (actor);
StViewportPrivate *priv = st_viewport_get_instance_private (viewport);
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
double x, y;
int x, y;
g_autoptr (ClutterActorBox) allocation_box = NULL;
ClutterActorBox content_box;
ClutterActor *child;
@ -506,7 +506,7 @@ st_viewport_get_paint_volume (ClutterActor *actor,
StThemeNode *theme_node = st_widget_get_theme_node (ST_WIDGET (actor));
ClutterActorBox allocation_box;
ClutterActorBox content_box;
double x, y;
int x, y;
/* Setting the paint volume does not make sense when we don't have any allocation */
if (!clutter_actor_has_allocation (actor))