48                      float dx1, float dy1,  in stroke_calc_arc()  argument
54     float a1 = atan2(dy1, dx1);  in stroke_calc_arc()
62     out_vertices.add(coord_type(x + dx1, y + dy1));  in stroke_calc_arc()
95                        float dx1, float dy1,  in stroke_calc_miter()  argument
106     if(calc_intersection(v0.x + dx1, v0.y - dy1,  in stroke_calc_miter()
107                          v1.x + dx1, v1.y - dy1,  in stroke_calc_miter()
119         float y2 = v1.y - dy1;  in stroke_calc_miter()
120         if ((((x2 - v0.x) * dy1) - ((v0.y - y2) * dx1) < 0) !=  in stroke_calc_miter()
121             (((x2 - v2.x) * dy1) - ((v2.y - y2) * dx1) < 0)) {  in stroke_calc_miter()
122             out_vertices.add(coord_type(v1.x + dx1, v1.y - dy1));  in stroke_calc_miter()
129                 out_vertices.add(coord_type(v1.x + dx1, v1.y - dy1));  in stroke_calc_miter()
134                                 v1.x, v1.y, dx1, -dy1, dx2, -dy2,  in stroke_calc_miter()
138               out_vertices.add(coord_type(v1.x + dx1 + (dy1 * miter_limit),  in stroke_calc_miter()
139                                           v1.y - dy1 + (dx1 * miter_limit)));  in stroke_calc_miter()
158     float dy1 = (v1.x - v0.x) / len;  in stroke_calc_cap()  local
162     dy1 = dy1 * width;  in stroke_calc_cap()
165             dx2 = dy1;  in stroke_calc_cap()
168         out_vertices.add(coord_type(v0.x - dx1 - dx2, v0.y + dy1 - dy2));  in stroke_calc_cap()
169         out_vertices.add(coord_type(v0.x + dx1 - dx2, v0.y - dy1 - dy2));  in stroke_calc_cap()
171       float a1 = atan2(dy1, -dx1);  in stroke_calc_cap()
174       out_vertices.add(coord_type(v0.x - dx1, v0.y + dy1));  in stroke_calc_cap()
182         out_vertices.add(coord_type(v0.x + dx1, v0.y - dy1));  in stroke_calc_cap()
200     float dx1, dy1, dx2, dy2;  in stroke_calc_join()  local
202     dy1 = width * (v1.x - v0.x) / len1;  in stroke_calc_join()
209                 out_vertices.add(coord_type(v1.x + dx1, v1.y - dy1));  in stroke_calc_join()
214                                   v0, v1, v2, dx1, dy1, dx2, dy2,  in stroke_calc_join()
222                     float d = (dx1 - dx2) * (dx1 - dx2) + (dy1 - dy2) * (dy1 - dy2);  in stroke_calc_join()
225                                           v0, v1, v2, dx1, dy1, dx2, dy2,  in stroke_calc_join()
232                             out_vertices.add(coord_type(v1.x + dx1, v1.y - dy1));  in stroke_calc_join()
236                             out_vertices.add(coord_type(v1.x + dx1, v1.y - dy1));  in stroke_calc_join()
239                                             v1.x, v1.y, dx2, -dy2, dx1, -dy1,  in stroke_calc_join()
254                                   v0, v1, v2, dx1, dy1, dx2, dy2,  in stroke_calc_join()
262                                 v1.x, v1.y, dx1, -dy1, dx2, -dy2,  in stroke_calc_join()
266                 out_vertices.add(coord_type(v1.x + dx1, v1.y - dy1));  in stroke_calc_join()