X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fgfxpoly%2Fpoly.h;h=68026228cfc4765cd90c0fa95750f02c7ef5b113;hb=33e9461da6b886671749d6cbabd80b355ab1f6d9;hp=6e4c7e40c1a34b6752bb0b5fdf279932d801aa2b;hpb=de3641737991ed13571eb947068472cf73001032;p=swftools.git

diff --git a/lib/gfxpoly/poly.h b/lib/gfxpoly/poly.h
index 6e4c7e4..6802622 100644
--- a/lib/gfxpoly/poly.h
+++ b/lib/gfxpoly/poly.h
@@ -6,6 +6,7 @@
 
 //#define DEBUG
 //#define CHECKS
+#define SPLAY
 
 typedef enum {DIR_UP, DIR_DOWN} segment_dir_t;
 typedef enum {EVENT_CROSS, EVENT_END, EVENT_CORNER, EVENT_START, EVENT_HORIZONTAL} eventtype_t;
@@ -58,6 +59,11 @@ typedef struct _segment {
     windstate_t wind;
     int nr;
 
+#ifdef SPLAY
+    struct _segment*parent;
+    struct _segment*leftchild;
+    struct _segment*rightchild;
+#endif
     struct _segment*left;
     struct _segment*right;
     char changed;
@@ -81,10 +87,7 @@ typedef struct _segment {
 
 #define XPOS_INT(s,ypos) ((int)ceil(XPOS((s),ypos)))
 #define XDIFF(s1,s2,ypos) (((s1)->k + (double)(s1)->delta.x*ypos)*(s2)->delta.y - \
-                           ((s2)->k + (double)(s1)->delta.x*ypos)*(s1)->delta.y)
-
-// rewrite as XDIFF==0?
-#define XPOS_EQ(s1,s2,ypos) (XPOS((s1),(ypos))==XPOS((s2),(ypos)))
+                           ((s2)->k + (double)(s2)->delta.x*ypos)*(s1)->delta.y)
 
 typedef struct _gfxpoly {
     double gridsize;