diff options
Diffstat (limited to 'dda.c')
| -rw-r--r-- | dda.c | 24 |
1 files changed, 12 insertions, 12 deletions
@@ -404,14 +404,17 @@ make_get (polygon_t *polygon, int x, int y, int width, int height, } static edge_t ** -update_aet (edge_t **aet, sample_t y, edge_t **global, int *n_edges) +update_aet (edge_t **aet, int *n_active, + sample_t y, edge_t **global, int *n_edges) { int i; + int new_size; int n_new; for (i = 0; i < *n_edges; ++i) { - /* add stuff from global [i] if it has become active */ + edge_t *e = global[i]; + } *n_edges -= n_new; @@ -434,28 +437,25 @@ polygon_rasterize (polygon_t *polygon, int x, int y, int width, int height) fixed_t min; sample_t yi; edge_t **aet; + int n_active; next_edge = get = make_get (polygon, x, y, width, height, &n_edges, &min); yi = next_sample_y (min); - aet = update_aet (NULL, yi, &next_edge, &n_edges); + n_active = 0; + aet = update_aet (NULL, &n_active, yi, &next_edge, &n_edges); while (fixed_to_int (yi) < y + height) { - edge_t **active; - - active = aet; - while (*active) - { - edge_step (*active, yi, poly_emit, NULL); + int i; - active++; - } + for (i = 0; i < n_active; ++i) + edge_step (aet[i], yi, poly_emit, NULL); yi = step_y (yi); - aet = update_aet (aet, yi, &next_edge, &n_edges); + aet = update_aet (aet, &n_active, yi, &next_edge, &n_edges); } /* First step all the edges to the top of the bounding box */ |