X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=lib%2Fgfxpoly%2Fpoly.h;h=fede8235cc04b2546f10b750f61ad15a0fd0381d;hp=6314935f3bbdbdb1d5311078e1bd7ac2110dd8dd;hb=c41f4433d3e721073c60d55cd923a087761e45f7;hpb=e5ec9f136f070b7e824e223c0b67e28efd8c70f0 diff --git a/lib/gfxpoly/poly.h b/lib/gfxpoly/poly.h index 6314935..fede823 100644 --- a/lib/gfxpoly/poly.h +++ b/lib/gfxpoly/poly.h @@ -24,6 +24,20 @@ typedef struct _edge { struct _edge *next; } edge_t; +typedef struct _windstate +{ + char is_filled; + int wind_nr; + int num_polygons; +} windstate_t; + +typedef struct _windrule +{ + windstate_t (*start)(int num_polygons); + windstate_t (*add)(windstate_t left, fillstyle_t*edge, segment_dir_t dir, int polygon_nr); + fillstyle_t* (*diff)(windstate_t*left, windstate_t*right); +} windrule_t; + typedef struct _segment { point_t a; point_t b; @@ -31,15 +45,18 @@ typedef struct _segment { double k; //k = a.x*b.y-a.y*b.x = delta.y*a.x - delta.x*a.y (=0 for points on the segment) segment_dir_t dir; - fillstyle_t*style; - + fillstyle_t*fs; + fillstyle_t*fs_out; + char fs_out_ok; + + int polygon_nr; + windstate_t wind; int nr; + struct _segment*left; struct _segment*right; point_t pos; - point_t new_point; - point_t new_pos; dict_t scheduled_crossings; } segment_t; @@ -47,10 +64,15 @@ typedef struct _segment { #define LINE_EQ(p,s) ((double)(s)->delta.y*(p).x - (double)(s)->delta.x*(p).y - (s)->k) #define XPOS(s,ypos) ((s)->a.x + ceil(((s)->delta.x * (double)((ypos) - (s)->a.y)) / (s)->delta.y)) -typedef edge_t gfxpoly_t; -gfxpoly_t* gfxpoly_new(); +typedef struct _gfxpoly { + double gridsize; + edge_t*edges; +} gfxpoly_t; + +gfxpoly_t* gfxpoly_new(double gridsize); +char gfxpoly_check(gfxpoly_t*poly); void gfxpoly_dump(gfxpoly_t*poly); -gfxpoly_t* gfxpoly_process(gfxpoly_t*poly); +gfxpoly_t* gfxpoly_process(gfxpoly_t*poly, windrule_t*windrule); typedef struct _event { eventtype_t type; @@ -59,8 +81,4 @@ typedef struct _event { segment_t*s2; } event_t; -void segment_init(segment_t*s, int32_t x1, int32_t y1, int32_t x2, int32_t y2); -segment_t*segment_new(int32_t x1, int32_t y1, int32_t x2, int32_t y2); -void segment_insert_before(segment_t**list, segment_t*add); - #endif