49                      float dx2, float dy2,  in stroke_calc_arc()  argument
55     float a2 = atan2(dy2, dx2);  in stroke_calc_arc()
88     out_vertices.add(coord_type(x + dx2, y + dy2));  in stroke_calc_arc()
96                        float dx2, float dy2,  in stroke_calc_miter()  argument
108                          v1.x + dx2, v1.y - dy2,  in stroke_calc_miter()
109                          v2.x + dx2, v2.y - dy2,  in stroke_calc_miter()
130                 out_vertices.add(coord_type(v1.x + dx2, v1.y - dy2));  in stroke_calc_miter()
134                                 v1.x, v1.y, dx1, -dy1, dx2, -dy2,  in stroke_calc_miter()
140               out_vertices.add(coord_type(v1.x + dx2 - (dy2 * miter_limit),  in stroke_calc_miter()
141                                           v1.y - dy2 - (dx2 * miter_limit)));  in stroke_calc_miter()
159     float dx2 = 0;  in stroke_calc_cap()  local
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()
200     float dx1, dy1, dx2, dy2;  in stroke_calc_join()  local
203     dx2 = width * (v2.y - v1.y) / len2;  in stroke_calc_join()
210                 out_vertices.add(coord_type(v1.x + dx2, v1.y - dy2));  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()
234                             out_vertices.add(coord_type(v1.x + dx2, v1.y - dy2));  in stroke_calc_join()
239                                             v1.x, v1.y, dx2, -dy2, dx1, -dy1,  in stroke_calc_join()
242                             out_vertices.add(coord_type(v1.x + dx2, v1.y - dy2));  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()
267                 out_vertices.add(coord_type(v1.x + dx2, v1.y - dy2));  in stroke_calc_join()