int height;
} intbbox_t;
-unsigned char* render_polygon(gfxpoly_t*polygon, intbbox_t*bbox, double zoom, windrule_t*rule);
+unsigned char* render_polygon(gfxpoly_t*polygon, intbbox_t*bbox, double zoom, windrule_t*rule, windcontext_t*context);
intbbox_t intbbox_new(int x1, int y1, int x2, int y2);
intbbox_t intbbox_from_polygon(gfxpoly_t*polygon, double zoom);