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pathbuilder: Skip trivial curves

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Don't add quads, cubics or conics that collapse
to a single point. This matches what we do for
lines.
This commit is contained in:
Matthias Clasen 2023-09-14 23:14:51 -04:00
parent de724b2a57
commit a520f9fcf7
1 changed files with 23 additions and 0 deletions
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23
gsk/gskpathbuilder.c
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@ -653,6 +653,13 @@ gsk_path_builder_quad_to (GskPathBuilder *self,
{
g_return_if_fail (self != NULL);
/* skip the quad if it collapses to a point */
if (graphene_point_equal (&self->current_point,
&GRAPHENE_POINT_INIT (x1, y1)) &&
graphene_point_equal (&GRAPHENE_POINT_INIT (x1, y1),
&GRAPHENE_POINT_INIT (x2, y2)))
return;
self->flags &= ~GSK_PATH_FLAT;
gsk_path_builder_append_current (self,
GSK_PATH_QUAD,
@ -729,6 +736,15 @@ gsk_path_builder_cubic_to (GskPathBuilder *self,
{
g_return_if_fail (self != NULL);
/* skip the cubic if it collapses to a point */
if (graphene_point_equal (&self->current_point,
&GRAPHENE_POINT_INIT (x1, y1)) &&
graphene_point_equal (&GRAPHENE_POINT_INIT (x1, y1),
&GRAPHENE_POINT_INIT (x2, y2)) &&
graphene_point_equal (&GRAPHENE_POINT_INIT (x2, y2),
&GRAPHENE_POINT_INIT (x3, y3)))
return;
self->flags &= ~GSK_PATH_FLAT;
gsk_path_builder_append_current (self,
GSK_PATH_CUBIC,
@ -818,6 +834,13 @@ gsk_path_builder_conic_to (GskPathBuilder *self,
g_return_if_fail (self != NULL);
g_return_if_fail (weight > 0);
/* skip the conic if it collapses to a point */
if (graphene_point_equal (&self->current_point,
&GRAPHENE_POINT_INIT (x1, y1)) &&
graphene_point_equal (&GRAPHENE_POINT_INIT (x1, y1),
&GRAPHENE_POINT_INIT (x2, y2)))
return;
self->flags &= ~GSK_PATH_FLAT;
gsk_path_builder_append_current (self,
GSK_PATH_CONIC,