PyObject *py_ped_alignment_align_up(PyObject *s, PyObject *args) {
PyObject *in_geom = NULL;
PedAlignment *align = NULL;
PedGeometry *out_geom = NULL;
PedSector sector, ret;
if (!PyArg_ParseTuple(args, "O!L", &_ped_Geometry_Type_obj, &in_geom, §or)) {
return NULL;
}
align = _ped_Alignment2PedAlignment(s);
if (align == NULL) {
return NULL;
}
out_geom = _ped_Geometry2PedGeometry(in_geom);
if (out_geom == NULL) {
return NULL;
}
ret = ped_alignment_align_up(align, out_geom, sector);
ped_alignment_destroy(align);
if (ret == -1) {
PyErr_SetString(PyExc_ArithmeticError, "Could not align up to sector");
return NULL;
}
return PyLong_FromLong(ret);
}
/*
* Return the region within which the start must lie
* in order to satisfy a constriant. It takes into account
* constraint->start_range, constraint->min_size and constraint->max_size.
* All sectors in this range that also satisfy alignment requirements have
* an end, such that the (start, end) satisfy the constraint.
*/
static PedGeometry*
_constraint_get_canonical_start_range (const PedConstraint* constraint)
{
PedSector first_end_soln;
PedSector last_end_soln;
PedSector min_start;
PedSector max_start;
PedGeometry start_min_max_range;
if (constraint->min_size > constraint->max_size)
return NULL;
first_end_soln = ped_alignment_align_down (
constraint->end_align, constraint->end_range,
constraint->end_range->start);
last_end_soln = ped_alignment_align_up (
constraint->end_align, constraint->end_range,
constraint->end_range->end);
if (first_end_soln == -1 || last_end_soln == -1
|| first_end_soln > last_end_soln
|| last_end_soln < constraint->min_size)
return NULL;
min_start = first_end_soln - constraint->max_size + 1;
if (min_start < 0)
min_start = 0;
max_start = last_end_soln - constraint->min_size + 1;
if (max_start < 0)
return NULL;
ped_geometry_init (
&start_min_max_range, constraint->start_range->dev,
min_start, max_start - min_start + 1);
return ped_geometry_intersect (&start_min_max_range,
constraint->start_range);
}