#include <stdint.h>
#include "../q.h"
+//#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;
typedef enum {SLOPE_POSITIVE, SLOPE_NEGATIVE} slope_t;
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;
#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;
edge_t*edges;
} gfxpoly_t;
+void gfxpoly_fail(char*expr, char*file, int line, const char*function);
+
gfxpoly_t* gfxpoly_new(double gridsize);
char gfxpoly_check(gfxpoly_t*poly);
int gfxpoly_size(gfxpoly_t*poly);
void gfxpoly_dump(gfxpoly_t*poly);
+gfxpoly_t* gfxpoly_save(gfxpoly_t*poly, const char*filename);
gfxpoly_t* gfxpoly_process(gfxpoly_t*poly, windrule_t*windrule);
typedef struct _event {
segment_t*s2;
} event_t;
+#ifndef CHECKS
+#ifdef assert
+#undef assert
+#endif
+#define assert(x)
+#else
+#define assert(x) ((x)?0:gfxpoly_fail(__STRING(x), __FILE__, __LINE__, __PRETTY_FUNCTION__))
+#endif
+
+
#endif