This commit is contained in:
Matthias Koefferlein 2021-10-24 20:28:15 +02:00
parent c6bd856331
commit 7881c0953c
1 changed files with 78 additions and 397 deletions

View File

@ -1015,7 +1015,6 @@ private:
}
};
#if 1
template <class TS, class TI, class TR>
struct interaction_registration_inst2inst
: db::box_scanner_receiver2<db::CellInstArray, unsigned int, db::CellInstArray, unsigned int>
@ -1064,16 +1063,18 @@ private:
void
collect_instance_interactions (const db::CellInstArray *inst1, const db::CellInstArray *inst2)
{
#if 0
printf("@@@ check instance interactions %s (#%d, %s) <-> %s (#%d, %s)\n",
mp_subject_layout->cell_name (inst1->object ().cell_index ()), int (inst1->size ()), (inst1->bbox(db::box_convert<db::CellInst> (*mp_subject_layout)).to_string()).c_str(),
mp_intruder_layout->cell_name (inst2->object ().cell_index ()), int (inst2->size ()), (inst2->bbox(db::box_convert<db::CellInst> (*mp_intruder_layout)).to_string()).c_str()); // @@@
#endif
// TODO: this algorithm is not in particular effective for identical arrays
const db::Cell &cell1 = mp_subject_layout->cell (inst1->object ().cell_index ());
const db::Cell &cell2 = mp_intruder_layout->cell (inst2->object ().cell_index ());
db::box_convert <db::CellInst, true> inst2_bc (*mp_intruder_layout, m_intruder_layer);
std::unordered_map<db::ICplxTrans, bool> interactions_cache;
std::unordered_map<db::ICplxTrans, std::list<std::pair<db::cell_index_type, db::ICplxTrans> > > interactions_cache;
for (db::CellInstArray::iterator n = inst1->begin (); ! n.at_end (); ++n) {
@ -1099,38 +1100,26 @@ printf("@@@ check instance interactions %s (#%d, %s) <-> %s (#%d, %s)\n",
// NOTE: we need to enlarge both subject *and* intruder boxes - either object comes close to intruder or the other way around
db::Box ibox2 = tn2 * cell2.bbox (m_intruder_layer).enlarged (db::Vector (m_dist, m_dist));
db::ICplxTrans tn21 = tni1 * tn2;
db::Box cbox = ibox1 & ibox2;
if (! cbox.empty ()) {
if (! cbox.empty () && ! db::RecursiveShapeIterator (*mp_subject_layout, cell1, m_subject_layer, safe_box_enlarged (tni1 * cbox, -1, -1), false).at_end ()) {
bool interacts = false;
db::ICplxTrans tn21 = tni1 * tn2;
std::unordered_map<db::ICplxTrans, bool>::const_iterator ic = interactions_cache.find (tn21);
std::list<std::pair<db::cell_index_type, db::ICplxTrans> > *interactions = 0;
std::unordered_map<db::ICplxTrans, std::list<std::pair<db::cell_index_type, db::ICplxTrans> > >::iterator ic = interactions_cache.find (tn21);
if (ic != interactions_cache.end ()) {
interacts = ic->second;
interactions = &ic->second;
} else {
db::ICplxTrans tni2 = tn2.inverted ();
// not very strong, but already useful: the cells interact if there is a layer1 in cell1
// in the common box and a layer2 in the cell2 in the common box
// NOTE: don't use overlap mode for the RecursiveShapeIterator as this would not capture dot-like
// objects like texts. Instead safe-shrink the search box and use touching mode ("false" for the last
// argument)
interacts = (! db::RecursiveShapeIterator (*mp_subject_layout, cell1, m_subject_layer, safe_box_enlarged (tni1 * cbox, -1, -1), false).at_end () &&
! db::RecursiveShapeIterator (*mp_intruder_layout, cell2, m_intruder_layer, safe_box_enlarged (tni2 * cbox, -1, -1), false).at_end ());
interactions_cache.insert (std::make_pair (tn21, interacts));
interactions = &interactions_cache [tn21];
collect_intruder_tree_interactions (cell1, cell2, tni1, tn21, cbox, *interactions);
}
if (interacts) {
for (std::list<std::pair<db::cell_index_type, db::ICplxTrans> >::const_iterator i = interactions->begin (); i != interactions->end (); ++i) {
if (! insts) {
insts = & (*mp_result) [std::make_pair (cell1.cell_index (), tn1)].first;
}
insts->insert (db::CellInstArray (db::CellInst (cell2.cell_index ()), tn21));
insts->insert (db::CellInstArray (db::CellInst (i->first), i->second));
}
}
@ -1141,124 +1130,98 @@ printf("@@@ check instance interactions %s (#%d, %s) <-> %s (#%d, %s)\n",
}
}
};
#else
static bool
instances_interact (const db::Layout *layout1, const db::CellInstArray *inst1, unsigned int layer1, const db::Layout *layout2, const db::CellInstArray *inst2, unsigned int layer2, db::Coord dist)
{
printf("@@@ check instance interactions %s (#%d, %s) <-> %s (#%d, %s)\n",
layout1->cell_name (inst1->object ().cell_index ()), int (inst1->size ()), (inst1->bbox(db::box_convert<db::CellInst> (*layout1)).to_string()).c_str(),
layout2->cell_name (inst2->object ().cell_index ()), int (inst2->size ()), (inst2->bbox(db::box_convert<db::CellInst> (*layout2)).to_string()).c_str()); // @@@
// TODO: this algorithm is not in particular effective for identical arrays
// @@@
bool has_intruder_tree_interactions (const db::Cell &subject_cell, const db::Cell &intruder_cell, const db::ICplxTrans &tni1, const db::ICplxTrans &tn21, const db::Box &cbox)
{
db::ICplxTrans tni2 = tn21.inverted () * tni1;
db::Box tbox2 = safe_box_enlarged (tni2 * cbox, -1, -1);
const db::Cell &cell1 = layout1->cell (inst1->object ().cell_index ());
const db::Cell &cell2 = layout2->cell (inst2->object ().cell_index ());
db::box_convert <db::CellInst, true> inst2_bc (*layout2, layer2);
if (! intruder_cell.shapes (m_intruder_layer).begin_touching (tbox2, ShapeIterator::All).at_end ()) {
std::unordered_set<db::ICplxTrans> relative_trans_seen;
// we're overlapping with shapes from the intruder - do not recursive further
return true;
for (db::CellInstArray::iterator n = inst1->begin (); ! n.at_end (); ++n) {
}
db::ICplxTrans tn1 = inst1->complex_trans (*n);
db::ICplxTrans tni1 = tn1.inverted ();
db::Box ibox1 = tn1 * cell1.bbox (layer1).enlarged (db::Vector (dist, dist));
for (db::Cell::touching_iterator i = intruder_cell.begin_touching (tbox2); ! i.at_end (); ++i) {
if (! ibox1.empty ()) {
const db::Cell &ic = mp_intruder_layout->cell (i->cell_index ());
// TODO: in some cases, it may be possible to optimize this for arrays
for (db::CellInstArray::iterator ia = i->begin_touching (tbox2, mp_intruder_layout); ! ia.at_end (); ++ia) {
for (db::CellInstArray::iterator k = inst2->begin_touching (safe_box_enlarged (ibox1, -1, -1), inst2_bc); ! k.at_end (); ++k) {
db::ICplxTrans it = i->complex_trans (*ia);
if (inst1 == inst2 && *n == *k) {
// skip self-interactions - this is handled inside the cell
continue;
}
db::Box ibox2 = tni2.inverted () * it * ic.bbox (m_intruder_layer).enlarged (db::Vector (m_dist, m_dist));
db::Box ccbox = cbox & ibox2;
db::ICplxTrans tn2 = inst2->complex_trans (*k);
// NOTE: we need to enlarge both subject *and* intruder boxes - either object comes close to intruder or the other way around
db::Box ibox2 = tn2 * cell2.bbox (layer2).enlarged (db::Vector (dist, dist));
db::ICplxTrans tn21 = tni1 * tn2;
if (! relative_trans_seen.insert (tn21).second) {
// this relative transformation was already seen
continue;
}
db::Box cbox = ibox1 & ibox2;
if (! cbox.empty ()) {
db::ICplxTrans tni2 = tn2.inverted ();
// not very strong, but already useful: the cells interact if there is a layer1 in cell1
// in the common box and a layer2 in the cell2 in the common box
// NOTE: don't use overlap mode for the RecursiveShapeIterator as this would not capture dot-like
// objects like texts. Instead safe-shrink the search box and use touching mode ("false" for the last
// argument)
if (! db::RecursiveShapeIterator (*layout1, cell1, layer1, safe_box_enlarged (tni1 * cbox, -1, -1), false).at_end () &&
! db::RecursiveShapeIterator (*layout2, cell2, layer2, safe_box_enlarged (tni2 * cbox, -1, -1), false).at_end ()) {
if (! ccbox.empty () && ! db::RecursiveShapeIterator (*mp_subject_layout, subject_cell, m_subject_layer, safe_box_enlarged (tni1 * ccbox, -1, -1), false).at_end ()) {
if (has_intruder_tree_interactions (subject_cell, ic, tni1, tn21 * it, ccbox)) {
return true;
}
}
}
}
return false;
}
// @@@
return false;
}
template <class T>
struct interaction_registration_inst2inst
: db::box_scanner_receiver2<db::CellInstArray, unsigned int, db::CellInstArray, unsigned int>
{
public:
typedef std::pair<std::unordered_set<const db::CellInstArray *>, std::map<unsigned int, std::unordered_set<T> > > interaction_value_type;
interaction_registration_inst2inst (const db::Layout *subject_layout, unsigned int subject_layer, const db::Layout *intruder_layout, unsigned int intruder_layer, bool foreign, db::Coord dist, std::unordered_map<const db::CellInstArray *, interaction_value_type> *result)
: mp_subject_layout (subject_layout), mp_intruder_layout (intruder_layout), m_subject_layer (subject_layer), m_intruder_layer (intruder_layer), m_dist (dist), mp_result (result), m_foreign (foreign)
void collect_intruder_tree_interactions (const db::Cell &subject_cell, const db::Cell &intruder_cell, const db::ICplxTrans &tni1, const db::ICplxTrans &tn21, const db::Box &cbox, std::list<std::pair<db::cell_index_type, db::ICplxTrans> > &interactions)
{
// nothing yet ..
}
#if 0
if (has_intruder_tree_interactions (subject_cell, intruder_cell, tni1, tn21, cbox)) {
interactions.push_back (std::make_pair (intruder_cell.cell_index (), tn21));
}
#elif 1
db::ICplxTrans tni2 = tn21.inverted () * tni1;
db::Box tbox2 = safe_box_enlarged (tni2 * cbox, -1, -1);
void add (const db::CellInstArray *inst1, unsigned int id1, const db::CellInstArray *inst2, unsigned int id2)
{
// NOTE: self-interactions are possible for arrays: different elements of the
// array may interact which is a cell-external interaction.
if (mp_subject_layout != mp_intruder_layout || id1 != id2 || inst1->size () > 1) {
if (! intruder_cell.shapes (m_intruder_layer).begin_touching (tbox2, ShapeIterator::All).at_end ()) {
bool ignore = false;
if (mp_subject_layout == mp_intruder_layout && m_subject_layer == m_intruder_layer && ! m_foreign) {
if (m_interactions.find (std::make_pair (id2, id1)) != m_interactions.end ()) {
// for self interactions ignore the reverse interactions
ignore = true;
} else {
m_interactions.insert (std::make_pair (id1, id2));
// we're overlapping with shapes from the intruder - do not recursive further
interactions.push_back (std::make_pair (intruder_cell.cell_index (), tn21));
return;
}
for (db::Cell::touching_iterator i = intruder_cell.begin_touching (tbox2); ! i.at_end (); ++i) {
const db::Cell &ic = mp_intruder_layout->cell (i->cell_index ());
for (db::CellInstArray::iterator ia = i->begin_touching (tbox2, mp_intruder_layout); ! ia.at_end (); ++ia) {
db::ICplxTrans it = i->complex_trans (*ia);
db::Box ibox2 = tni2.inverted () * it * ic.bbox (m_intruder_layer).enlarged (db::Vector (m_dist, m_dist));
db::Box ccbox = cbox & ibox2;
if (! ccbox.empty () && ! db::RecursiveShapeIterator (*mp_subject_layout, subject_cell, m_subject_layer, safe_box_enlarged (tni1 * ccbox, -1, -1), false).at_end ()) {
collect_intruder_tree_interactions (subject_cell, ic, tni1, tn21 * it, ccbox, interactions);
}
}
if (! ignore && instances_interact (mp_subject_layout, inst1, m_subject_layer, mp_intruder_layout, inst2, m_intruder_layer, m_dist)) {
(*mp_result) [inst1].first.insert (inst2);
}
}
}
#else
// not very strong, but already useful: the cells interact if there is a layer1 in cell1
// in the common box and a layer2 in the cell2 in the common box
// NOTE: don't use overlap mode for the RecursiveShapeIterator as this would not capture dot-like
// objects like texts. Instead safe-shrink the search box and use touching mode ("false" for the last
// argument)
db::ICplxTrans tni2 = tn21.inverted () * tni1;
bool interacts = (! db::RecursiveShapeIterator (*mp_subject_layout, subject_cell, m_subject_layer, safe_box_enlarged (tni1 * cbox, -1, -1), false).at_end () &&
! db::RecursiveShapeIterator (*mp_intruder_layout, intruder_cell, m_intruder_layer, safe_box_enlarged (tni2 * cbox, -1, -1), false).at_end ());
private:
const db::Layout *mp_subject_layout, *mp_intruder_layout;
unsigned int m_subject_layer, m_intruder_layer;
db::Coord m_dist;
std::unordered_map<const db::CellInstArray *, std::pair<std::unordered_set<const db::CellInstArray *>, std::map<unsigned int, std::unordered_set<T> > > > *mp_result;
std::unordered_set<std::pair<unsigned int, unsigned int> > m_interactions;
bool m_foreign;
};
if (interacts) {
interactions.push_back (std::make_pair (intruder_cell.cell_index (), tn21));
}
#endif
}
};
#if 1
template <class TS, class TI, class TR>
struct interaction_registration_inst2shape
: db::box_scanner_receiver2<db::CellInstArray, unsigned int, TI, unsigned int>
@ -1318,64 +1281,7 @@ private:
}
}
};
#else
template <class T>
static bool
instance_shape_interacts (const db::Layout *layout, const db::CellInstArray *inst, unsigned int layer, const T &ref, db::Coord dist)
{
const db::Cell &cell = layout->cell (inst->object ().cell_index ());
db::box_convert <db::CellInst, true> inst_bc (*layout, layer);
db::Box rbox = db::box_convert<T> () (ref);
for (db::CellInstArray::iterator n = inst->begin_touching (safe_box_enlarged (rbox, dist - 1, dist - 1), inst_bc); ! n.at_end (); ++n) {
db::ICplxTrans tn = inst->complex_trans (*n);
db::Box cbox = (tn * cell.bbox (layer)).enlarged (db::Vector (dist, dist)) & rbox.enlarged (db::Vector (dist, dist));
if (! cbox.empty ()) {
db::ICplxTrans tni = tn.inverted ();
// not very strong, but already useful: the cells interact if there is a layer in cell
// in the common box
// NOTE: don't use overlapping mode here, because this will not select point-like objects as texts or
// dot edges. Instead safe-shrink the search box and use touching mode.
if (! db::RecursiveShapeIterator (*layout, cell, layer, safe_box_enlarged (tni * cbox, -1, -1), false).at_end ()) {
return true;
}
}
}
return false;
}
template <class T>
struct interaction_registration_inst2shape
: db::box_scanner_receiver2<db::CellInstArray, unsigned int, T, unsigned int>
{
public:
interaction_registration_inst2shape (const db::Layout *subject_layout, unsigned int subject_layer, db::Coord dist, std::unordered_map<const db::CellInstArray *, std::pair<std::unordered_set<const db::CellInstArray *>, std::map<unsigned int, std::unordered_set<T> > > > *result)
: mp_subject_layout (subject_layout), m_subject_layer (subject_layer), m_dist (dist), mp_result (result)
{
// nothing yet ..
}
void add (const db::CellInstArray *inst, unsigned int, const T *ref, unsigned int layer)
{
if (instance_shape_interacts (mp_subject_layout, inst, m_subject_layer, *ref, m_dist)) {
(*mp_result) [inst].second [layer].insert (*ref);
}
}
private:
const db::Layout *mp_subject_layout;
unsigned int m_subject_layer;
db::Coord m_dist;
std::unordered_map<const db::CellInstArray *, std::pair<std::unordered_set<const db::CellInstArray *>, std::map<unsigned int, std::unordered_set<T> > > > *mp_result;
};
#endif
}
// ---------------------------------------------------------------------------------------------
@ -1630,6 +1536,9 @@ void local_processor<TS, TI, TR>::compute_contexts (local_processor_contexts<TS,
const typename local_processor_cell_contexts<TS, TI, TR>::context_key_type &intruders,
db::Coord dist) const
{
#if 0 // @@@
printf("@@@ --- compute_contexts (%s @ %s)\n", mp_subject_layout->cell_name (subject_cell->cell_index ()), subject_cell_inst.to_string().c_str()); fflush(stdout);
#endif
CRONOLOGY_COLLECTION_BRACKET(event_compute_contexts)
if (tl::verbosity () >= m_base_verbosity + 20) {
@ -1698,7 +1607,6 @@ void local_processor<TS, TI, TR>::compute_contexts (local_processor_contexts<TS,
if (! subject_cell->begin ().at_end ()) {
#if 1
// Key: single instance given by cell index and transformation
// Value the contexts for the child cell for this instance
typedef typename local_processor_cell_contexts<TS, TI, TR>::context_key_type interactions_value_type;
@ -1773,7 +1681,7 @@ void local_processor<TS, TI, TR>::compute_contexts (local_processor_contexts<TS,
}
// TODO: can we shortcut this if interactions is empty?
// TODO: can we shortcut this if interactions is empty?
{
db::box_scanner2<db::CellInstArray, int, TI, int> scanner;
interaction_registration_inst2shape<TS, TI, TR> rec (mp_subject_layout, contexts.subject_layer (), dist, &interactions);
@ -1809,237 +1717,10 @@ void local_processor<TS, TI, TR>::compute_contexts (local_processor_contexts<TS,
}
#else
typedef std::pair<std::unordered_set<const db::CellInstArray *>, std::map<unsigned int, std::unordered_set<TI> > > interaction_value_type;
// insert dummy interactions to handle at least the child cell vs. itself
// - this is important so we will always handle the instances unless they are
// entirely empty in the subject layer
for (db::Cell::const_iterator i = subject_cell->begin (); !i.at_end (); ++i) {
if (! inst_bcs (i->cell_inst ()).empty ()) {
interactions.insert (std::make_pair (&i->cell_inst (), interaction_value_type ()));
}
}
// TODO: can we shortcut this if interactions is empty?
for (std::vector<unsigned int>::const_iterator il = contexts.intruder_layers ().begin (); il != contexts.intruder_layers ().end (); ++il) {
db::box_convert <db::CellInstArray, true> inst_bci (*mp_intruder_layout, contexts.actual_intruder_layer (*il));
db::box_scanner2<db::CellInstArray, int, db::CellInstArray, int> scanner;
interaction_registration_inst2inst<TI> rec (mp_subject_layout, contexts.subject_layer (), mp_intruder_layout, contexts.actual_intruder_layer (*il), contexts.is_foreign (*il), dist, &interactions);
unsigned int id = 0;
if (subject_cell == intruder_cell) {
// Use the same id's for same instances - this way we can easily detect same instances
// and don't make them self-interacting
for (db::Cell::const_iterator i = subject_cell->begin (); !i.at_end (); ++i) {
unsigned int iid = ++id;
if (! inst_bcs (i->cell_inst ()).empty () && ! subject_cell_is_breakout (i->cell_index ())) {
scanner.insert1 (&i->cell_inst (), iid);
}
if (! inst_bci (i->cell_inst ()).empty () && ! intruder_cell_is_breakout (i->cell_index ())) {
scanner.insert2 (&i->cell_inst (), iid);
}
}
} else {
for (db::Cell::const_iterator i = subject_cell->begin (); !i.at_end (); ++i) {
if (! inst_bcs (i->cell_inst ()).empty () && ! subject_cell_is_breakout (i->cell_index ())) {
scanner.insert1 (&i->cell_inst (), ++id);
}
}
if (intruder_cell) {
for (db::Cell::const_iterator i = intruder_cell->begin (); !i.at_end (); ++i) {
if (! inst_bci (i->cell_inst ()).empty () && ! intruder_cell_is_breakout (i->cell_index ())) {
scanner.insert2 (&i->cell_inst (), ++id);
}
}
}
}
std::list<db::CellInstArray> instance_heap;
for (std::set<db::CellInstArray>::const_iterator i = intruders.first.begin (); i != intruders.first.end (); ++i) {
if (! inst_bci (*i).empty ()) {
scanner.insert2 (i.operator-> (), ++id);
}
}
scanner.process (rec, dist, inst_bcs, inst_bci);
}
// TODO: can we shortcut this if interactions is empty?
{
db::box_scanner2<db::CellInstArray, int, TI, int> scanner;
interaction_registration_inst2shape<TI> rec (mp_subject_layout, contexts.subject_layer (), dist, &interactions);
for (db::Cell::const_iterator i = subject_cell->begin (); !i.at_end (); ++i) {
if (! inst_bcs (i->cell_inst ()).empty () && ! subject_cell_is_breakout (i->cell_index ())) {
scanner.insert1 (&i->cell_inst (), 0);
}
}
for (typename std::map<unsigned int, std::set<TI> >::const_iterator il = intruders.second.begin (); il != intruders.second.end (); ++il) {
for (typename std::set<TI>::const_iterator i = il->second.begin (); i != il->second.end (); ++i) {
scanner.insert2 (i.operator-> (), il->first);
}
}
for (std::map<unsigned int, const db::Shapes *>::const_iterator im = intruder_shapes.begin (); im != intruder_shapes.end (); ++im) {
for (db::Shapes::shape_iterator i = im->second->begin (shape_flags<TI> ()); !i.at_end (); ++i) {
scanner.insert2 (i->basic_ptr (typename TI::tag ()), im->first);
}
}
scanner.process (rec, dist, inst_bcs, db::box_convert<TI> ());
}
// this cache should reduce the effort of checking array vs. array
typedef std::pair<unsigned int, std::pair<db::cell_index_type, db::ICplxTrans> > effective_instance_cache_key_type;
typedef std::map<effective_instance_cache_key_type, std::pair<bool, db::CellInstArray> > effective_instance_cache_type;
effective_instance_cache_type effective_instance_cache;
size_t n = 0, nmax = interactions.size(); // @@@
for (typename std::unordered_map<const db::CellInstArray *, interaction_value_type>::const_iterator i = interactions.begin (); i != interactions.end (); ++i) {
printf("@@@ %d/%d -> #%d,#%d\n", int(n++), int(nmax), int (i->second.first.size()), int(i->second.second.size())); fflush(stdout);
db::Cell *subject_child_cell = &mp_subject_layout->cell (i->first->object ().cell_index ());
db::Box sc_bbox = subject_child_cell->bbox (contexts.subject_layer ()).enlarged (db::Vector (dist, dist));
if (sc_bbox.empty ()) {
continue;
}
db::Cell *intruder_child_cell = (subject_cell == intruder_cell ? subject_child_cell : 0);
for (db::CellInstArray::iterator n = i->first->begin (); ! n.at_end (); ++n) {
db::ICplxTrans tn = i->first->complex_trans (*n);
db::ICplxTrans tni = tn.inverted ();
db::Box nbox = tn * sc_bbox;
typename local_processor_cell_contexts<TS, TI, TR>::context_key_type intruders_below;
db::shape_reference_translator_with_trans<TI, db::ICplxTrans> rt (mp_subject_layout, tni);
for (typename std::map<unsigned int, std::unordered_set<TI> >::const_iterator pl = i->second.second.begin (); pl != i->second.second.end (); ++pl) {
std::set<TI> &out = intruders_below.second [pl->first];
for (typename std::unordered_set<TI>::const_iterator p = pl->second.begin (); p != pl->second.end (); ++p) {
if (nbox.overlaps (db::box_convert<TI> () (*p))) {
out.insert (rt (*p));
}
}
}
// TODO: in some cases, it may be possible to optimize this for arrays
for (std::vector<unsigned int>::const_iterator il = contexts.intruder_layers ().begin (); il != contexts.intruder_layers ().end (); ++il) {
unsigned int ail = contexts.actual_intruder_layer (*il);
db::box_convert <db::CellInst, true> inst_bcii (*mp_intruder_layout, ail);
for (std::unordered_set<const db::CellInstArray *>::const_iterator j = i->second.first.begin (); j != i->second.first.end (); ++j) {
for (db::CellInstArray::iterator k = (*j)->begin_touching (safe_box_enlarged (nbox, -1, -1), inst_bcii); ! k.at_end (); ++k) {
db::ICplxTrans tk = (*j)->complex_trans (*k);
// NOTE: no self-interactions
if (i->first != *j || tn != tk) {
// optimize the intruder instance so it will be as low as possible
effective_instance_cache_key_type key (ail, std::make_pair ((*j)->object ().cell_index (), tni * tk));
effective_instance_cache_type::iterator cached = effective_instance_cache.find (key);
if (cached == effective_instance_cache.end ()) {
std::pair<bool, db::CellInstArray> ei = effective_instance (contexts.subject_layer (), i->first->object ().cell_index (), ail, (*j)->object ().cell_index (), tni * tk, dist);
cached = effective_instance_cache.insert (std::make_pair (key, ei)).first;
}
if (cached->second.first) {
intruders_below.first.insert (cached->second.second);
}
}
}
}
}
issue_compute_contexts (contexts, cell_context, subject_cell, subject_child_cell, tn, intruder_child_cell, intruders_below, dist);
}
}
#endif
}
}
/**
* @brief Returns a cell instance array suitable for adding as intruder
*
* The given intruder cell with the transformation ti2s - which transforms the intruder instance into
* the coordinate system of the subject cell - is analysed and either this instance or a sub-instance
* is chosen.
* Sub-instances are chosen if the intruder cell does not have shapes which interact with the subject
* cell and there is exactly one sub-instance interacting with the subject cell.
*/
template <class TS, class TI, class TR>
std::pair<bool, db::CellInstArray>
local_processor<TS, TI, TR>::effective_instance (unsigned int subject_layer, db::cell_index_type subject_cell_index, unsigned int intruder_layer, db::cell_index_type intruder_cell_index, const db::ICplxTrans &ti2s, db::Coord dist) const
{
db::Box bbox = safe_box_enlarged (mp_subject_layout->cell (subject_cell_index).bbox (subject_layer), dist - 1, dist - 1);
if (bbox.empty ()) {
// should not happen, but skip if it does
return std::make_pair (false, db::CellInstArray ());
}
db::Box ibbox = bbox.transformed (ti2s.inverted ());
const db::Cell &intruder_cell = mp_intruder_layout->cell (intruder_cell_index);
const db::Shapes &intruder_shapes = intruder_cell.shapes (intruder_layer);
if (! intruder_shapes.empty () && ! intruder_shapes.begin_touching (ibbox, db::ShapeIterator::All).at_end ()) {
return std::make_pair (true, db::CellInstArray (db::CellInst (intruder_cell_index), ti2s));
}
db::box_convert <db::CellInst, true> inst_bcii (*mp_intruder_layout, intruder_layer);
size_t ni = 0;
db::cell_index_type eff_cell_index = 0;
db::ICplxTrans eff_trans;
for (db::Cell::touching_iterator i = intruder_cell.begin_touching (ibbox); ! i.at_end() && ni < 2; ++i) {
const db::CellInstArray &ci = i->cell_inst ();
db::Box cbox = mp_intruder_layout->cell (ci.object ().cell_index ()).bbox (intruder_layer);
for (db::CellInstArray::iterator k = ci.begin_touching (ibbox, inst_bcii); ! k.at_end () && ni < 2; ++k) {
db::ICplxTrans tk = ci.complex_trans (*k);
if (ibbox.overlaps (cbox.transformed (tk))) {
eff_trans = tk;
eff_cell_index = ci.object ().cell_index ();
++ni;
}
}
}
if (ni == 0) {
// should not happen, but skip if it does
return std::make_pair (false, db::CellInstArray ());
} else if (ni == 1) {
// one instance - dive down
return effective_instance (subject_layer, subject_cell_index, intruder_layer, eff_cell_index, ti2s * eff_trans, dist);
} else {
return std::make_pair (true, db::CellInstArray (db::CellInst (intruder_cell_index), ti2s));
}
}
template <class TS, class TI, class TR>
void
local_processor<TS, TI, TR>::compute_results (local_processor_contexts<TS, TI, TR> &contexts, const local_operation<TS, TI, TR> *op, const std::vector<unsigned int> &output_layers) const