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more improvements to, and bugfixes in, the new polygon intersector
[swftools.git]
/
lib
/
gfxpoly
/
active.c
diff --git
a/lib/gfxpoly/active.c
b/lib/gfxpoly/active.c
index
56c7b90
..
51e0796
100644
(file)
--- a/
lib/gfxpoly/active.c
+++ b/
lib/gfxpoly/active.c
@@
-76,6
+76,7
@@
static void actlist_insert_after(actlist_t*a, segment_t*left, segment_t*s)
s->left->right = s;
if(s->right)
s->right->left = s;
s->left->right = s;
if(s->right)
s->right->left = s;
+ a->size++;
}
void actlist_insert(actlist_t*a, point_t p, segment_t*s)
}
void actlist_insert(actlist_t*a, point_t p, segment_t*s)
@@
-95,6
+96,11
@@
void actlist_delete(actlist_t*a, segment_t*s)
s->right->left = s->left;
}
s->left = s->right = 0;
s->right->left = s->left;
}
s->left = s->right = 0;
+ a->size--;
+}
+int actlist_size(actlist_t*a)
+{
+ return a->size;
}
segment_t* actlist_leftmost(actlist_t*a)
}
segment_t* actlist_leftmost(actlist_t*a)
@@
-109,7
+115,8
@@
segment_t* actlist_left(actlist_t*a, segment_t*s)
segment_t* actlist_right(actlist_t*a, segment_t*s)
{
segment_t* actlist_right(actlist_t*a, segment_t*s)
{
- return s->right;
+ if(s) return s->right;
+ else return a->list;
}
void actlist_swap(actlist_t*a, segment_t*s1, segment_t*s2)
}
void actlist_swap(actlist_t*a, segment_t*s1, segment_t*s2)