60     for(i = 0; i < point_cnt - 1; i++) {  in lv_draw_sw_polygon()
61         if(points[i].x != points[i + 1].x || points[i].y != points[i + 1].y) {  in lv_draw_sw_polygon()
67     if(points[0].x != points[point_cnt - 1].x || points[0].y != points[point_cnt - 1].y) {  in lv_draw_sw_polygon()
68         p[pcnt] = points[point_cnt - 1];  in lv_draw_sw_polygon()
82         poly_coords.y1 = LV_MIN(poly_coords.y1, p[i].y);  in lv_draw_sw_polygon()
84         poly_coords.y2 = LV_MAX(poly_coords.y2, p[i].y);  in lv_draw_sw_polygon()
89     is_common = _lv_area_intersect(&clip_area, &poly_coords, draw_ctx->clip_area);  in lv_draw_sw_polygon()
95     const lv_area_t * clip_area_ori = draw_ctx->clip_area;  in lv_draw_sw_polygon()
96     draw_ctx->clip_area = &clip_area;  in lv_draw_sw_polygon()
99     lv_coord_t y_min = p[0].y;  in lv_draw_sw_polygon()
103         if(p[i].y < y_min) {  in lv_draw_sw_polygon()
104             y_min = p[i].y;  in lv_draw_sw_polygon()
119     i_next_left = y_min_i - 1;  in lv_draw_sw_polygon()
123     if(i_next_right > point_cnt - 1) i_next_right = 0;  in lv_draw_sw_polygon()
127      * The normal case is when the left point is on `y_min_i - 1`  in lv_draw_sw_polygon()
129      *   if angle(p_left) < angle(p_right) -> inverted  in lv_draw_sw_polygon()
133     lv_coord_t dxl = p[i_next_left].x - p[y_min_i].x;  in lv_draw_sw_polygon()
134     lv_coord_t dxr = p[i_next_right].x - p[y_min_i].x;  in lv_draw_sw_polygon()
135     lv_coord_t dyl = p[i_next_left].y - p[y_min_i].y;  in lv_draw_sw_polygon()
136     lv_coord_t dyr = p[i_next_right].y - p[y_min_i].y;  in lv_draw_sw_polygon()
143             i_next_left = i_prev_left - 1;  in lv_draw_sw_polygon()
147             if(i_next_right > point_cnt - 1) i_next_right = 0;  in lv_draw_sw_polygon()
151             if(i_next_left > point_cnt - 1) i_next_left = 0;  in lv_draw_sw_polygon()
153             i_next_right = i_prev_right - 1;  in lv_draw_sw_polygon()
157         if(p[i_next_left].y >= p[i_prev_left].y) {  in lv_draw_sw_polygon()
158             if(p[i_next_left].y != p[i_prev_left].y &&  in lv_draw_sw_polygon()
160                 lv_draw_mask_line_points_init(mp_next, p[i_prev_left].x, p[i_prev_left].y,  in lv_draw_sw_polygon()
161                                               p[i_next_left].x, p[i_next_left].y,  in lv_draw_sw_polygon()
172         if(p[i_next_right].y >= p[i_prev_right].y) {  in lv_draw_sw_polygon()
173             if(p[i_next_right].y != p[i_prev_right].y &&  in lv_draw_sw_polygon()
176                 lv_draw_mask_line_points_init(mp_next, p[i_prev_right].x, p[i_prev_right].y,  in lv_draw_sw_polygon()
177                                               p[i_next_right].x, p[i_next_right].y,  in lv_draw_sw_polygon()
195     draw_ctx->clip_area = clip_area_ori;  in lv_draw_sw_polygon()