cairo_status_t
_cairo_path_fixed_init_copy (cairo_path_fixed_t *path,
cairo_path_fixed_t *other)
{
cairo_path_buf_t *buf, *other_buf;
_cairo_path_fixed_init (path);
path->current_point = other->current_point;
path->has_current_point = other->has_current_point;
path->has_curve_to = other->has_curve_to;
path->last_move_point = other->last_move_point;
path->buf_head->num_ops = other->buf_head->num_ops;
path->buf_head->num_points = other->buf_head->num_points;
memcpy (path->buf_head->op, other->buf_head->op,
other->buf_head->num_ops * sizeof (other->buf_head->op[0]));
memcpy (path->buf_head->points, other->buf_head->points,
other->buf_head->num_points * sizeof (other->buf_head->points[0]));
for (other_buf = other->buf_head->next;
other_buf;
other_buf = other_buf->next)
{
buf = _cairo_path_buf_create ();
if (buf == NULL) {
_cairo_path_fixed_fini (path);
return CAIRO_STATUS_NO_MEMORY;
}
memcpy (buf, other_buf, sizeof (cairo_path_buf_t));
_cairo_path_fixed_add_buf (path, buf);
}
return CAIRO_STATUS_SUCCESS;
}
cairo_status_t
_cairo_path_fixed_init_copy (cairo_path_fixed_t *path,
cairo_path_fixed_t *other)
{
cairo_path_buf_t *buf, *other_buf;
unsigned int num_points, num_ops, buf_size;
_cairo_path_fixed_init (path);
path->current_point = other->current_point;
path->has_current_point = other->has_current_point;
path->has_curve_to = other->has_curve_to;
path->last_move_point = other->last_move_point;
path->buf_head.base.num_ops = other->buf_head.base.num_ops;
path->buf_head.base.num_points = other->buf_head.base.num_points;
path->buf_head.base.buf_size = other->buf_head.base.buf_size;
memcpy (path->buf_head.op, other->buf_head.base.op,
other->buf_head.base.num_ops * sizeof (other->buf_head.op[0]));
memcpy (path->buf_head.points, other->buf_head.points,
other->buf_head.base.num_points * sizeof (other->buf_head.points[0]));
num_points = num_ops = 0;
for (other_buf = other->buf_head.base.next;
other_buf != NULL;
other_buf = other_buf->next)
{
num_ops += other_buf->num_ops;
num_points += other_buf->num_points;
}
buf_size = MAX (num_ops, (num_points + 1) / 2);
if (buf_size) {
buf = _cairo_path_buf_create (buf_size);
if (buf == NULL) {
_cairo_path_fixed_fini (path);
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
}
for (other_buf = other->buf_head.base.next;
other_buf != NULL;
other_buf = other_buf->next)
{
memcpy (buf->op + buf->num_ops, other_buf->op,
other_buf->num_ops * sizeof (buf->op[0]));
buf->num_ops += other_buf->num_ops;
memcpy (buf->points + buf->num_points, other_buf->points,
other_buf->num_points * sizeof (buf->points[0]));
buf->num_points += other_buf->num_points;
}
_cairo_path_fixed_add_buf (path, buf);
}
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cairo_path_fixed_add (cairo_path_fixed_t *path,
cairo_path_op_t op,
cairo_point_t *points,
int num_points)
{
cairo_path_buf_t *buf = path->buf_tail;
if (buf->num_ops + 1 > buf->buf_size ||
buf->num_points + num_points > 2 * buf->buf_size)
{
buf = _cairo_path_buf_create (buf->buf_size * 2);
if (buf == NULL)
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
_cairo_path_fixed_add_buf (path, buf);
}
_cairo_path_buf_add_op (buf, op);
_cairo_path_buf_add_points (buf, points, num_points);
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cairo_path_fixed_add (cairo_path_fixed_t *path,
cairo_path_op_t op,
cairo_point_t *points,
int num_points)
{
if ((unsigned int) path->buf_tail->num_ops + 1 > CAIRO_PATH_BUF_SIZE ||
(unsigned int) path->buf_tail->num_points + num_points > CAIRO_PATH_BUF_SIZE)
{
cairo_path_buf_t *buf;
buf = _cairo_path_buf_create ();
if (buf == NULL)
return CAIRO_STATUS_NO_MEMORY;
_cairo_path_fixed_add_buf (path, buf);
}
_cairo_path_buf_add_op (path->buf_tail, op);
_cairo_path_buf_add_points (path->buf_tail, points, num_points);
return CAIRO_STATUS_SUCCESS;
}
cairo_status_t
_cairo_path_fixed_init_copy (cairo_path_fixed_t *path,
const cairo_path_fixed_t *other)
{
cairo_path_buf_t *buf, *other_buf;
unsigned int num_points, num_ops;
VG (VALGRIND_MAKE_MEM_UNDEFINED (path, sizeof (cairo_path_fixed_t)));
cairo_list_init (&path->buf.base.link);
path->buf.base.op = path->buf.op;
path->buf.base.points = path->buf.points;
path->buf.base.size_ops = ARRAY_LENGTH (path->buf.op);
path->buf.base.size_points = ARRAY_LENGTH (path->buf.points);
path->current_point = other->current_point;
path->last_move_point = other->last_move_point;
path->has_last_move_point = other->has_last_move_point;
path->has_current_point = other->has_current_point;
path->has_curve_to = other->has_curve_to;
path->is_rectilinear = other->is_rectilinear;
path->maybe_fill_region = other->maybe_fill_region;
path->is_empty_fill = other->is_empty_fill;
path->extents = other->extents;
path->buf.base.num_ops = other->buf.base.num_ops;
path->buf.base.num_points = other->buf.base.num_points;
memcpy (path->buf.op, other->buf.base.op,
other->buf.base.num_ops * sizeof (other->buf.op[0]));
memcpy (path->buf.points, other->buf.points,
other->buf.base.num_points * sizeof (other->buf.points[0]));
num_points = num_ops = 0;
for (other_buf = cairo_path_buf_next (cairo_path_head (other));
other_buf != cairo_path_head (other);
other_buf = cairo_path_buf_next (other_buf))
{
num_ops += other_buf->num_ops;
num_points += other_buf->num_points;
}
if (num_ops) {
buf = _cairo_path_buf_create (num_ops, num_points);
if (unlikely (buf == NULL)) {
_cairo_path_fixed_fini (path);
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
}
for (other_buf = cairo_path_buf_next (cairo_path_head (other));
other_buf != cairo_path_head (other);
other_buf = cairo_path_buf_next (other_buf))
{
memcpy (buf->op + buf->num_ops, other_buf->op,
other_buf->num_ops * sizeof (buf->op[0]));
buf->num_ops += other_buf->num_ops;
memcpy (buf->points + buf->num_points, other_buf->points,
other_buf->num_points * sizeof (buf->points[0]));
buf->num_points += other_buf->num_points;
}
_cairo_path_fixed_add_buf (path, buf);
}
return CAIRO_STATUS_SUCCESS;
}
