cairo_status_t
_cairo_pen_add_points (cairo_pen_t *pen, cairo_point_t *point, int num_points)
{
cairo_pen_vertex_t *vertices;
int num_vertices;
int i;
num_vertices = pen->num_vertices + num_points;
vertices = realloc (pen->vertices, num_vertices * sizeof (cairo_pen_vertex_t));
if (vertices == NULL)
return CAIRO_STATUS_NO_MEMORY;
pen->vertices = vertices;
pen->num_vertices = num_vertices;
/* initialize new vertices */
for (i=0; i < num_points; i++)
pen->vertices[pen->num_vertices-num_points+i].point = point[i];
_cairo_hull_compute (pen->vertices, &pen->num_vertices);
_cairo_pen_compute_slopes (pen);
return CAIRO_STATUS_SUCCESS;
}
cairo_status_t
_cairo_pen_add_points (cairo_pen_t *pen, cairo_point_t *point, int num_points)
{
cairo_status_t status;
int num_vertices;
int i;
if (CAIRO_INJECT_FAULT ())
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
num_vertices = pen->num_vertices + num_points;
if (num_vertices > ARRAY_LENGTH (pen->vertices_embedded) ||
pen->vertices != pen->vertices_embedded)
{
cairo_pen_vertex_t *vertices;
if (pen->vertices == pen->vertices_embedded) {
vertices = _cairo_malloc_ab (num_vertices,
sizeof (cairo_pen_vertex_t));
if (unlikely (vertices == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
memcpy (vertices, pen->vertices,
pen->num_vertices * sizeof (cairo_pen_vertex_t));
} else {
vertices = _cairo_realloc_ab (pen->vertices,
num_vertices,
sizeof (cairo_pen_vertex_t));
if (unlikely (vertices == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
}
pen->vertices = vertices;
}
pen->num_vertices = num_vertices;
/* initialize new vertices */
for (i=0; i < num_points; i++)
pen->vertices[pen->num_vertices-num_points+i].point = point[i];
status = _cairo_hull_compute (pen->vertices, &pen->num_vertices);
if (unlikely (status))
return status;
_cairo_pen_compute_slopes (pen);
return CAIRO_STATUS_SUCCESS;
}
