OpenVDB 11.0.0

Loading...
Searching...
No Matches
NodeManager.h
Go to the documentation of this file.
1// Copyright Contributors to the OpenVDB Project
2// SPDX-License-Identifier: MPL-2.0
3
4/// @file tree/NodeManager.h
5///
6/// @authors Ken Museth, Dan Bailey
7///
8/// @brief NodeManager produces linear arrays of all tree nodes
9/// allowing for efficient threading and bottom-up processing.
10///
11/// @note A NodeManager can be constructed from a Tree or LeafManager.
12
13#ifndef OPENVDB_TREE_NODEMANAGER_HAS_BEEN_INCLUDED
14#define OPENVDB_TREE_NODEMANAGER_HAS_BEEN_INCLUDED
15
16#include <openvdb/Types.h>
17#include <tbb/parallel_for.h>
18#include <tbb/parallel_reduce.h>
19#include <deque>
20
21
22 namespace openvdb {
23 OPENVDB_USE_VERSION_NAMESPACE
24 namespace OPENVDB_VERSION_NAME {
25 namespace tree {
26
27// Produce linear arrays of all tree nodes, to facilitate efficient threading
28// and bottom-up processing.
29 template<typename TreeOrLeafManagerT, Index LEVELS = TreeOrLeafManagerT::RootNodeType::LEVEL>
30 class NodeManager;
31
32
33// Produce linear arrays of all tree nodes lazily, to facilitate efficient threading
34// of topology-changing top-down workflows.
35 template<typename TreeOrLeafManagerT, Index _LEVELS = TreeOrLeafManagerT::RootNodeType::LEVEL>
36 class DynamicNodeManager;
37
38
39////////////////////////////////////////
40
41
42// This is a dummy node filtering class used by the NodeManager class to match
43// the internal filtering interface used by the DynamicNodeManager.
44 struct NodeFilter
45{
46 static bool valid(size_t) { return true; }
47}; // struct NodeFilter
48
49
50/// @brief This class caches tree nodes of a specific type in a linear array.
51///
52/// @note It is for internal use and should rarely be used directly.
53 template<typename NodeT>
54 class NodeList
55{
56 public:
57 NodeList() = default;
58
59 NodeT& operator()(size_t n) const { assert(n<mNodeCount); return *(mNodes[n]); }
60
61 NodeT*& operator[](size_t n) { assert(n<mNodeCount); return mNodes[n]; }
62
63 Index64 nodeCount() const { return mNodeCount; }
64
65 void clear()
66 {
67 mNodePtrs.reset();
68 mNodes = nullptr;
69 mNodeCount = 0;
70 }
71
72 // initialize this node list from the provided root node
73 template <typename RootT>
74 bool initRootChildren(RootT& root)
75 {
76 // Allocate (or deallocate) the node pointer array
77
78 size_t nodeCount = root.childCount();
79
80 if (nodeCount != mNodeCount) {
81 if (nodeCount > 0) {
82 mNodePtrs.reset(new NodeT*[nodeCount]);
83 mNodes = mNodePtrs.get();
84 } else {
85 mNodePtrs.reset();
86 mNodes = nullptr;
87 }
88 mNodeCount = nodeCount;
89 }
90
91 if (mNodeCount == 0) return false;
92
93 // Populate the node pointers
94
95 NodeT** nodePtr = mNodes;
96 for (auto iter = root.beginChildOn(); iter; ++iter) {
97 *nodePtr++ = &iter.getValue();
98 }
99
100 return true;
101 }
102
103 // initialize this node list from another node list containing the parent nodes
104 template <typename ParentsT, typename NodeFilterT>
105 bool initNodeChildren(ParentsT& parents, const NodeFilterT& nodeFilter = NodeFilterT(), bool serial = false)
106 {
107 // Compute the node counts for each node
108
109 std::vector<Index32> nodeCounts;
110 if (serial) {
111 nodeCounts.reserve(parents.nodeCount());
112 for (size_t i = 0; i < parents.nodeCount(); i++) {
113 if (!nodeFilter.valid(i)) nodeCounts.push_back(0);
114 else nodeCounts.push_back(parents(i).childCount());
115 }
116 } else {
117 nodeCounts.resize(parents.nodeCount());
118 tbb::parallel_for(
119 // with typical node sizes and SSE enabled, there are only a handful
120 // of instructions executed per-operation with a default grainsize
121 // of 1, so increase to 64 to reduce parallel scheduling overhead
122 tbb::blocked_range<Index64>(0, parents.nodeCount(), /*grainsize=*/64),
123 [&](tbb::blocked_range<Index64>& range)
124 {
125 for (Index64 i = range.begin(); i < range.end(); i++) {
126 if (!nodeFilter.valid(i)) nodeCounts[i] = 0;
127 else nodeCounts[i] = parents(i).childCount();
128 }
129 }
130 );
131 }
132
133 // Turn node counts into a cumulative histogram and obtain total node count
134
135 for (size_t i = 1; i < nodeCounts.size(); i++) {
136 nodeCounts[i] += nodeCounts[i-1];
137 }
138
139 const size_t nodeCount = nodeCounts.empty() ? 0 : nodeCounts.back();
140
141 // Allocate (or deallocate) the node pointer array
142
143 if (nodeCount != mNodeCount) {
144 if (nodeCount > 0) {
145 mNodePtrs.reset(new NodeT*[nodeCount]);
146 mNodes = mNodePtrs.get();
147 } else {
148 mNodePtrs.reset();
149 mNodes = nullptr;
150 }
151 mNodeCount = nodeCount;
152 }
153
154 if (mNodeCount == 0) return false;
155
156 // Populate the node pointers
157
158 if (serial) {
159 NodeT** nodePtr = mNodes;
160 for (size_t i = 0; i < parents.nodeCount(); i++) {
161 if (!nodeFilter.valid(i)) continue;
162 for (auto iter = parents(i).beginChildOn(); iter; ++iter) {
163 *nodePtr++ = &iter.getValue();
164 }
165 }
166 } else {
167 tbb::parallel_for(
168 tbb::blocked_range<Index64>(0, parents.nodeCount()),
169 [&](tbb::blocked_range<Index64>& range)
170 {
171 Index64 i = range.begin();
172 NodeT** nodePtr = mNodes;
173 if (i > 0) nodePtr += nodeCounts[i-1];
174 for ( ; i < range.end(); i++) {
175 if (!nodeFilter.valid(i)) continue;
176 for (auto iter = parents(i).beginChildOn(); iter; ++iter) {
177 *nodePtr++ = &iter.getValue();
178 }
179 }
180 }
181 );
182 }
183
184 return true;
185 }
186
187 class NodeRange
188 {
189 public:
190
191 NodeRange(size_t begin, size_t end, const NodeList& nodeList, size_t grainSize=1):
192 mEnd(end), mBegin(begin), mGrainSize(grainSize), mNodeList(nodeList) {}
193
194 NodeRange(NodeRange& r, tbb::split):
195 mEnd(r.mEnd), mBegin(doSplit(r)), mGrainSize(r.mGrainSize),
196 mNodeList(r.mNodeList) {}
197
198 size_t size() const { return mEnd - mBegin; }
199
200 size_t grainsize() const { return mGrainSize; }
201
202 const NodeList& nodeList() const { return mNodeList; }
203
204 bool empty() const {return !(mBegin < mEnd);}
205
206 bool is_divisible() const {return mGrainSize < this->size();}
207
208 class Iterator
209 {
210 public:
211 Iterator(const NodeRange& range, size_t pos): mRange(range), mPos(pos)
212 {
213 assert(this->isValid());
214 }
215 Iterator(const Iterator&) = default;
216 Iterator& operator=(const Iterator&) = default;
217 /// Advance to the next node.
218 Iterator& operator++() { ++mPos; return *this; }
219 /// Return a reference to the node to which this iterator is pointing.
220 NodeT& operator*() const { return mRange.mNodeList(mPos); }
221 /// Return a pointer to the node to which this iterator is pointing.
222 NodeT* operator->() const { return &(this->operator*()); }
223 /// Return the index into the list of the current node.
224 size_t pos() const { return mPos; }
225 bool isValid() const { return mPos>=mRange.mBegin && mPos<=mRange.mEnd; }
226 /// Return @c true if this iterator is not yet exhausted.
227 bool test() const { return mPos < mRange.mEnd; }
228 /// Return @c true if this iterator is not yet exhausted.
229 operator bool() const { return this->test(); }
230 /// Return @c true if this iterator is exhausted.
231 bool empty() const { return !this->test(); }
232 bool operator!=(const Iterator& other) const
233 {
234 return (mPos != other.mPos) || (&mRange != &other.mRange);
235 }
236 bool operator==(const Iterator& other) const { return !(*this != other); }
237 const NodeRange& nodeRange() const { return mRange; }
238
239 private:
240 const NodeRange& mRange;
241 size_t mPos;
242 };// NodeList::NodeRange::Iterator
243
244 Iterator begin() const {return Iterator(*this, mBegin);}
245
246 Iterator end() const {return Iterator(*this, mEnd);}
247
248 private:
249 size_t mEnd, mBegin, mGrainSize;
250 const NodeList& mNodeList;
251
252 static size_t doSplit(NodeRange& r)
253 {
254 assert(r.is_divisible());
255 size_t middle = r.mBegin + (r.mEnd - r.mBegin) / 2u;
256 r.mEnd = middle;
257 return middle;
258 }
259 };// NodeList::NodeRange
260
261 /// Return a TBB-compatible NodeRange.
262 NodeRange nodeRange(size_t grainsize = 1) const
263 {
264 return NodeRange(0, this->nodeCount(), *this, grainsize);
265 }
266
267 template<typename NodeOp>
268 void foreach(const NodeOp& op, bool threaded = true, size_t grainSize=1)
269 {
270 NodeTransformerCopy<NodeOp> transform(op); // always deep-copies the op
271 transform.run(this->nodeRange(grainSize), threaded);
272 }
273
274 template<typename NodeOp>
275 void reduce(NodeOp& op, bool threaded = true, size_t grainSize=1)
276 {
277 NodeReducer<NodeOp> transform(op);
278 transform.run(this->nodeRange(grainSize), threaded);
279 }
280
281 // identical to foreach except the operator() method has a node index and
282 // the operator is referenced instead of copied in NodeTransformer
283 template<typename NodeOp>
284 void foreachWithIndex(const NodeOp& op, bool threaded = true, size_t grainSize=1)
285 {
286 NodeTransformer<NodeOp, OpWithIndex> transform(op);
287 transform.run(this->nodeRange(grainSize), threaded);
288 }
289
290 // identical to reduce except the operator() method has a node index
291 template<typename NodeOp>
292 void reduceWithIndex(NodeOp& op, bool threaded = true, size_t grainSize=1)
293 {
294 NodeReducer<NodeOp, OpWithIndex> transform(op);
295 transform.run(this->nodeRange(grainSize), threaded);
296 }
297
298 private:
299
300 // default execution in the NodeManager ignores the node index
301 // given by the iterator position
302 struct OpWithoutIndex
303 {
304 template <typename T>
305 static void eval(T& node, typename NodeRange::Iterator& iter) { node(*iter); }
306 };
307
308 // execution in the DynamicNodeManager matches that of the LeafManager in
309 // passing through the node index given by the iterator position
310 struct OpWithIndex
311 {
312 template <typename T>
313 static void eval(T& node, typename NodeRange::Iterator& iter) { node(*iter, iter.pos()); }
314 };
315
316 // Private struct of NodeList that performs parallel_for
317 template<typename NodeOp, typename OpT = OpWithoutIndex>
318 struct NodeTransformerCopy
319 {
320 NodeTransformerCopy(const NodeOp& nodeOp) : mNodeOp(nodeOp)
321 {
322 }
323 void run(const NodeRange& range, bool threaded = true)
324 {
325 threaded ? tbb::parallel_for(range, *this) : (*this)(range);
326 }
327 void operator()(const NodeRange& range) const
328 {
329 for (typename NodeRange::Iterator it = range.begin(); it; ++it) {
330 OpT::template eval(mNodeOp, it);
331 }
332 }
333 const NodeOp mNodeOp;
334 };// NodeList::NodeTransformerCopy
335
336 // Private struct of NodeList that performs parallel_for
337 template<typename NodeOp, typename OpT = OpWithoutIndex>
338 struct NodeTransformer
339 {
340 NodeTransformer(const NodeOp& nodeOp) : mNodeOp(nodeOp)
341 {
342 }
343 void run(const NodeRange& range, bool threaded = true)
344 {
345 threaded ? tbb::parallel_for(range, *this) : (*this)(range);
346 }
347 void operator()(const NodeRange& range) const
348 {
349 for (typename NodeRange::Iterator it = range.begin(); it; ++it) {
350 OpT::template eval(mNodeOp, it);
351 }
352 }
353 const NodeOp& mNodeOp;
354 };// NodeList::NodeTransformer
355
356 // Private struct of NodeList that performs parallel_reduce
357 template<typename NodeOp, typename OpT = OpWithoutIndex>
358 struct NodeReducer
359 {
360 NodeReducer(NodeOp& nodeOp) : mNodeOp(&nodeOp)
361 {
362 }
363 NodeReducer(const NodeReducer& other, tbb::split)
364 : mNodeOpPtr(std::make_unique<NodeOp>(*(other.mNodeOp), tbb::split()))
365 , mNodeOp(mNodeOpPtr.get())
366 {
367 }
368 void run(const NodeRange& range, bool threaded = true)
369 {
370 threaded ? tbb::parallel_reduce(range, *this) : (*this)(range);
371 }
372 void operator()(const NodeRange& range)
373 {
374 for (typename NodeRange::Iterator it = range.begin(); it; ++it) {
375 OpT::template eval(*mNodeOp, it);
376 }
377 }
378 void join(const NodeReducer& other)
379 {
380 mNodeOp->join(*(other.mNodeOp));
381 }
382 std::unique_ptr<NodeOp> mNodeOpPtr;
383 NodeOp *mNodeOp = nullptr;
384 };// NodeList::NodeReducer
385
386
387 protected:
388 size_t mNodeCount = 0;
389 std::unique_ptr<NodeT*[]> mNodePtrs;
390 NodeT** mNodes = nullptr;
391};// NodeList
392
393
394/////////////////////////////////////////////
395
396
397/// @brief This class is a link in a chain that each caches tree nodes
398/// of a specific type in a linear array.
399///
400/// @note It is for internal use and should rarely be used directly.
401 template<typename NodeT, Index LEVEL>
402 class NodeManagerLink
403{
404 public:
405 using NonConstChildNodeType = typename NodeT::ChildNodeType;
406 using ChildNodeType = typename CopyConstness<NodeT, NonConstChildNodeType>::Type;
407
408 NodeManagerLink() = default;
409
410 void clear() { mList.clear(); mNext.clear(); }
411
412 template <typename RootT>
413 void initRootChildren(RootT& root, bool serial = false)
414 {
415 mList.initRootChildren(root);
416 mNext.initNodeChildren(mList, serial);
417 }
418
419 template<typename ParentsT>
420 void initNodeChildren(ParentsT& parents, bool serial = false)
421 {
422 mList.initNodeChildren(parents, NodeFilter(), serial);
423 mNext.initNodeChildren(mList, serial);
424 }
425
426 Index64 nodeCount() const { return mList.nodeCount() + mNext.nodeCount(); }
427
428 Index64 nodeCount(Index i) const
429 {
430 return i==NodeT::LEVEL ? mList.nodeCount() : mNext.nodeCount(i);
431 }
432
433 template<typename NodeOp>
434 void foreachBottomUp(const NodeOp& op, bool threaded, size_t grainSize)
435 {
436 mNext.foreachBottomUp(op, threaded, grainSize);
437 mList.foreach(op, threaded, grainSize);
438 }
439
440 template<typename NodeOp>
441 void foreachTopDown(const NodeOp& op, bool threaded, size_t grainSize)
442 {
443 mList.foreach(op, threaded, grainSize);
444 mNext.foreachTopDown(op, threaded, grainSize);
445 }
446
447 template<typename NodeOp>
448 void reduceBottomUp(NodeOp& op, bool threaded, size_t grainSize)
449 {
450 mNext.reduceBottomUp(op, threaded, grainSize);
451 mList.reduce(op, threaded, grainSize);
452 }
453
454 template<typename NodeOp>
455 void reduceTopDown(NodeOp& op, bool threaded, size_t grainSize)
456 {
457 mList.reduce(op, threaded, grainSize);
458 mNext.reduceTopDown(op, threaded, grainSize);
459 }
460
461 protected:
462 NodeList<NodeT> mList;
463 NodeManagerLink<ChildNodeType, LEVEL-1> mNext;
464};// NodeManagerLink class
465
466
467////////////////////////////////////////
468
469
470/// @private
471/// @brief Specialization that terminates the chain of cached tree nodes
472/// @note It is for internal use and should rarely be used directly.
473 template<typename NodeT>
474 class NodeManagerLink<NodeT, 0>
475{
476 public:
477 NodeManagerLink() = default;
478
479 /// @brief Clear all the cached tree nodes
480 void clear() { mList.clear(); }
481
482 template <typename RootT>
483 void initRootChildren(RootT& root, bool /*serial*/ = false) { mList.initRootChildren(root); }
484
485 template<typename ParentsT>
486 void initNodeChildren(ParentsT& parents, bool serial = false) { mList.initNodeChildren(parents, NodeFilter(), serial); }
487
488 Index64 nodeCount() const { return mList.nodeCount(); }
489
490 Index64 nodeCount(Index) const { return mList.nodeCount(); }
491
492 template<typename NodeOp>
493 void foreachBottomUp(const NodeOp& op, bool threaded, size_t grainSize)
494 {
495 mList.foreach(op, threaded, grainSize);
496 }
497
498 template<typename NodeOp>
499 void foreachTopDown(const NodeOp& op, bool threaded, size_t grainSize)
500 {
501 mList.foreach(op, threaded, grainSize);
502 }
503
504 template<typename NodeOp>
505 void reduceBottomUp(NodeOp& op, bool threaded, size_t grainSize)
506 {
507 mList.reduce(op, threaded, grainSize);
508 }
509
510 template<typename NodeOp>
511 void reduceTopDown(NodeOp& op, bool threaded, size_t grainSize)
512 {
513 mList.reduce(op, threaded, grainSize);
514 }
515
516 protected:
517 NodeList<NodeT> mList;
518};// NodeManagerLink class
519
520
521////////////////////////////////////////
522
523
524/// @brief To facilitate threading over the nodes of a tree, cache
525/// node pointers in linear arrays, one for each level of the tree.
526///
527/// @details This implementation works with trees of any depth, but
528/// optimized specializations are provided for the most typical tree depths.
529 template<typename TreeOrLeafManagerT, Index _LEVELS>
530 class NodeManager
531{
532 public:
533 static const Index LEVELS = _LEVELS;
534 static_assert(LEVELS > 0,
535 "expected instantiation of template specialization"); // see specialization below
536 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
537 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
538 using NonConstChildNodeType = typename RootNodeType::ChildNodeType;
539 using ChildNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstChildNodeType>::Type;
540 static_assert(RootNodeType::LEVEL >= LEVELS, "number of levels exceeds root node height");
541
542 NodeManager(TreeOrLeafManagerT& tree, bool serial = false)
543 : mRoot(tree.root())
544 {
545 this->rebuild(serial);
546 }
547
548 NodeManager(const NodeManager&) = delete;
549
550 /// @brief Clear all the cached tree nodes
551 void clear() { mChain.clear(); }
552
553 /// @brief Clear and recache all the tree nodes from the
554 /// tree. This is required if tree nodes have been added or removed.
555 void rebuild(bool serial = false) { mChain.initRootChildren(mRoot, serial); }
556
557 /// @brief Return a reference to the root node.
558 const RootNodeType& root() const { return mRoot; }
559
560 /// @brief Return the total number of cached nodes (excluding the root node)
561 Index64 nodeCount() const { return mChain.nodeCount(); }
562
563 /// @brief Return the number of cached nodes at level @a i, where
564 /// 0 corresponds to the lowest level.
565 Index64 nodeCount(Index i) const { return mChain.nodeCount(i); }
566
567 //@{
568 /// @brief Threaded method that applies a user-supplied functor
569 /// to all the nodes in the tree.
570 ///
571 /// @param op user-supplied functor, see examples for interface details.
572 /// @param threaded optional toggle to disable threading, on by default.
573 /// @param grainSize optional parameter to specify the grainsize
574 /// for threading, one by default.
575 ///
576 /// @warning The functor object is deep-copied to create TBB tasks.
577 ///
578 /// @par Example:
579 /// @code
580 /// // Functor to offset all the inactive values of a tree. Note
581 /// // this implementation also illustrates how different
582 /// // computation can be applied to the different node types.
583 /// template<typename TreeType>
584 /// struct OffsetOp
585 /// {
586 /// using ValueT = typename TreeT::ValueType;
587 /// using RootT = typename TreeT::RootNodeType;
588 /// using LeafT = typename TreeT::LeafNodeType;
589 /// OffsetOp(const ValueT& v) : mOffset(v) {}
590 ///
591 /// // Processes the root node. Required by the NodeManager
592 /// void operator()(RootT& root) const
593 /// {
594 /// for (typename RootT::ValueOffIter i = root.beginValueOff(); i; ++i) *i += mOffset;
595 /// }
596 /// // Processes the leaf nodes. Required by the NodeManager
597 /// void operator()(LeafT& leaf) const
598 /// {
599 /// for (typename LeafT::ValueOffIter i = leaf.beginValueOff(); i; ++i) *i += mOffset;
600 /// }
601 /// // Processes the internal nodes. Required by the NodeManager
602 /// template<typename NodeT>
603 /// void operator()(NodeT& node) const
604 /// {
605 /// for (typename NodeT::ValueOffIter i = node.beginValueOff(); i; ++i) *i += mOffset;
606 /// }
607 /// private:
608 /// const ValueT mOffset;
609 /// };
610 ///
611 /// // usage:
612 /// OffsetOp<FloatTree> op(3.0f);
613 /// tree::NodeManager<FloatTree> nodes(tree);
614 /// nodes.foreachBottomUp(op);
615 ///
616 /// // or if a LeafManager already exists
617 /// using T = tree::LeafManager<FloatTree>;
618 /// OffsetOp<T> op(3.0f);
619 /// tree::NodeManager<T> nodes(leafManager);
620 /// nodes.foreachBottomUp(op);
621 ///
622 /// @endcode
623 template<typename NodeOp>
624 void foreachBottomUp(const NodeOp& op, bool threaded = true, size_t grainSize=1)
625 {
626 mChain.foreachBottomUp(op, threaded, grainSize);
627 op(mRoot);
628 }
629
630 template<typename NodeOp>
631 void foreachTopDown(const NodeOp& op, bool threaded = true, size_t grainSize=1)
632 {
633 op(mRoot);
634 mChain.foreachTopDown(op, threaded, grainSize);
635 }
636
637 //@}
638
639 //@{
640 /// @brief Threaded method that processes nodes with a user supplied functor
641 ///
642 /// @param op user-supplied functor, see examples for interface details.
643 /// @param threaded optional toggle to disable threading, on by default.
644 /// @param grainSize optional parameter to specify the grainsize
645 /// for threading, one by default.
646 ///
647 /// @warning The functor object is deep-copied to create TBB tasks.
648 ///
649 /// @par Example:
650 /// @code
651 /// // Functor to count nodes in a tree
652 /// template<typename TreeType>
653 /// struct NodeCountOp
654 /// {
655 /// NodeCountOp() : nodeCount(TreeType::DEPTH, 0), totalCount(0)
656 /// {
657 /// }
658 /// NodeCountOp(const NodeCountOp& other, tbb::split) :
659 /// nodeCount(TreeType::DEPTH, 0), totalCount(0)
660 /// {
661 /// }
662 /// void join(const NodeCountOp& other)
663 /// {
664 /// for (size_t i = 0; i < nodeCount.size(); ++i) {
665 /// nodeCount[i] += other.nodeCount[i];
666 /// }
667 /// totalCount += other.totalCount;
668 /// }
669 /// // do nothing for the root node
670 /// void operator()(const typename TreeT::RootNodeType& node)
671 /// {
672 /// }
673 /// // count the internal and leaf nodes
674 /// template<typename NodeT>
675 /// void operator()(const NodeT& node)
676 /// {
677 /// ++(nodeCount[NodeT::LEVEL]);
678 /// ++totalCount;
679 /// }
680 /// std::vector<openvdb::Index64> nodeCount;
681 /// openvdb::Index64 totalCount;
682 /// };
683 ///
684 /// // usage:
685 /// NodeCountOp<FloatTree> op;
686 /// tree::NodeManager<FloatTree> nodes(tree);
687 /// nodes.reduceBottomUp(op);
688 ///
689 /// // or if a LeafManager already exists
690 /// NodeCountOp<FloatTree> op;
691 /// using T = tree::LeafManager<FloatTree>;
692 /// T leafManager(tree);
693 /// tree::NodeManager<T> nodes(leafManager);
694 /// nodes.reduceBottomUp(op);
695 ///
696 /// @endcode
697 template<typename NodeOp>
698 void reduceBottomUp(NodeOp& op, bool threaded = true, size_t grainSize=1)
699 {
700 mChain.reduceBottomUp(op, threaded, grainSize);
701 op(mRoot);
702 }
703
704 template<typename NodeOp>
705 void reduceTopDown(NodeOp& op, bool threaded = true, size_t grainSize=1)
706 {
707 op(mRoot);
708 mChain.reduceTopDown(op, threaded, grainSize);
709 }
710 //@}
711
712 protected:
713 RootNodeType& mRoot;
714 NodeManagerLink<ChildNodeType, LEVELS-1> mChain;
715};// NodeManager class
716
717
718////////////////////////////////////////////
719
720
721// Wraps a user-supplied DynamicNodeManager operator and stores the return
722// value of the operator() method to the index of the node in a bool array
723 template <typename OpT>
724 struct ForeachFilterOp
725{
726 explicit ForeachFilterOp(const OpT& op, openvdb::Index64 size)
727 : mOp(op)
728 , mValidPtr(std::make_unique<bool[]>(size))
729 , mValid(mValidPtr.get()) { }
730
731 ForeachFilterOp(const ForeachFilterOp& other)
732 : mOp(other.mOp)
733 , mValid(other.mValid) { }
734
735 template<typename NodeT>
736 void operator()(NodeT& node, size_t idx) const
737 {
738 mValid[idx] = mOp(node, idx);
739 }
740
741 bool valid(size_t idx) const { return mValid[idx]; }
742
743 const OpT& op() const { return mOp; }
744
745 private:
746 const OpT& mOp;
747 std::unique_ptr<bool[]> mValidPtr;
748 bool* mValid = nullptr;
749}; // struct ForeachFilterOp
750
751
752// Wraps a user-supplied DynamicNodeManager operator and stores the return
753// value of the operator() method to the index of the node in a bool array
754 template <typename OpT>
755 struct ReduceFilterOp
756{
757 ReduceFilterOp(OpT& op, openvdb::Index64 size)
758 : mOp(&op)
759 , mValidPtr(std::make_unique<bool[]>(size))
760 , mValid(mValidPtr.get()) { }
761
762 ReduceFilterOp(const ReduceFilterOp& other)
763 : mOp(other.mOp)
764 , mValid(other.mValid) { }
765
766 ReduceFilterOp(const ReduceFilterOp& other, tbb::split)
767 : mOpPtr(std::make_unique<OpT>(*(other.mOp), tbb::split()))
768 , mOp(mOpPtr.get())
769 , mValid(other.mValid) { }
770
771 template<typename NodeT>
772 void operator()(NodeT& node, size_t idx) const
773 {
774 mValid[idx] = (*mOp)(node, idx);
775 }
776
777 void join(const ReduceFilterOp& other)
778 {
779 mOp->join(*(other.mOp));
780 }
781
782 bool valid(size_t idx) const
783 {
784 return mValid[idx];
785 }
786
787 OpT& op() { return *mOp; }
788
789 private:
790 std::unique_ptr<OpT> mOpPtr;
791 OpT* mOp = nullptr;
792 std::unique_ptr<bool[]> mValidPtr;
793 bool* mValid = nullptr;
794}; // struct ReduceFilterOp
795
796
797/// @brief This class is a link in a chain that each caches tree nodes
798/// of a specific type in a linear array.
799///
800/// @note It is for internal use and should rarely be used directly.
801 template<typename NodeT, Index LEVEL>
802 class DynamicNodeManagerLink
803{
804 public:
805 using NonConstChildNodeType = typename NodeT::ChildNodeType;
806 using ChildNodeType = typename CopyConstness<NodeT, NonConstChildNodeType>::Type;
807
808 DynamicNodeManagerLink() = default;
809
810 template<typename NodeOpT, typename RootT>
811 void foreachTopDown(const NodeOpT& op, RootT& root, bool threaded,
812 size_t leafGrainSize, size_t nonLeafGrainSize)
813 {
814 if (!op(root, /*index=*/0)) return;
815 if (!mList.initRootChildren(root)) return;
816 ForeachFilterOp<NodeOpT> filterOp(op, mList.nodeCount());
817 mList.foreachWithIndex(filterOp, threaded, LEVEL == 0 ? leafGrainSize : nonLeafGrainSize);
818 mNext.foreachTopDownRecurse(filterOp, mList, threaded, leafGrainSize, nonLeafGrainSize);
819 }
820
821 template<typename FilterOpT, typename ParentT>
822 void foreachTopDownRecurse(const FilterOpT& filterOp, ParentT& parent, bool threaded,
823 size_t leafGrainSize, size_t nonLeafGrainSize)
824 {
825 if (!mList.initNodeChildren(parent, filterOp, !threaded)) return;
826 FilterOpT childFilterOp(filterOp.op(), mList.nodeCount());
827 mList.foreachWithIndex(childFilterOp, threaded, LEVEL == 0 ? leafGrainSize : nonLeafGrainSize);
828 mNext.foreachTopDownRecurse(childFilterOp, mList, threaded, leafGrainSize, nonLeafGrainSize);
829 }
830
831 template<typename NodeOpT, typename RootT>
832 void reduceTopDown(NodeOpT& op, RootT& root, bool threaded,
833 size_t leafGrainSize, size_t nonLeafGrainSize)
834 {
835 if (!op(root, /*index=*/0)) return;
836 if (!mList.initRootChildren(root)) return;
837 ReduceFilterOp<NodeOpT> filterOp(op, mList.nodeCount());
838 mList.reduceWithIndex(filterOp, threaded, LEVEL == 0 ? leafGrainSize : nonLeafGrainSize);
839 mNext.reduceTopDownRecurse(filterOp, mList, threaded, leafGrainSize, nonLeafGrainSize);
840 }
841
842 template<typename FilterOpT, typename ParentT>
843 void reduceTopDownRecurse(FilterOpT& filterOp, ParentT& parent, bool threaded,
844 size_t leafGrainSize, size_t nonLeafGrainSize)
845 {
846 if (!mList.initNodeChildren(parent, filterOp, !threaded)) return;
847 FilterOpT childFilterOp(filterOp.op(), mList.nodeCount());
848 mList.reduceWithIndex(childFilterOp, threaded, LEVEL == 0 ? leafGrainSize : nonLeafGrainSize);
849 mNext.reduceTopDownRecurse(childFilterOp, mList, threaded, leafGrainSize, nonLeafGrainSize);
850 }
851
852 protected:
853 NodeList<NodeT> mList;
854 DynamicNodeManagerLink<ChildNodeType, LEVEL-1> mNext;
855};// DynamicNodeManagerLink class
856
857
858/// @private
859/// @brief Specialization that terminates the chain of cached tree nodes
860/// @note It is for internal use and should rarely be used directly.
861 template<typename NodeT>
862 class DynamicNodeManagerLink<NodeT, 0>
863{
864 public:
865 DynamicNodeManagerLink() = default;
866
867 template<typename NodeFilterOp, typename ParentT>
868 void foreachTopDownRecurse(const NodeFilterOp& nodeFilterOp, ParentT& parent, bool threaded,
869 size_t leafGrainSize, size_t /*nonLeafGrainSize*/)
870 {
871 if (!mList.initNodeChildren(parent, nodeFilterOp, !threaded)) return;
872 mList.foreachWithIndex(nodeFilterOp.op(), threaded, leafGrainSize);
873 }
874
875 template<typename NodeFilterOp, typename ParentT>
876 void reduceTopDownRecurse(NodeFilterOp& nodeFilterOp, ParentT& parent, bool threaded,
877 size_t leafGrainSize, size_t /*nonLeafGrainSize*/)
878 {
879 if (!mList.initNodeChildren(parent, nodeFilterOp, !threaded)) return;
880 mList.reduceWithIndex(nodeFilterOp.op(), threaded, leafGrainSize);
881 }
882
883 protected:
884 NodeList<NodeT> mList;
885};// DynamicNodeManagerLink class
886
887
888 template<typename TreeOrLeafManagerT, Index _LEVELS>
889 class DynamicNodeManager
890{
891 public:
892 static const Index LEVELS = _LEVELS;
893 static_assert(LEVELS > 0,
894 "expected instantiation of template specialization"); // see specialization below
895 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
896 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
897 using NonConstChildNodeType = typename RootNodeType::ChildNodeType;
898 using ChildNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstChildNodeType>::Type;
899 static_assert(RootNodeType::LEVEL >= LEVELS, "number of levels exceeds root node height");
900
901 explicit DynamicNodeManager(TreeOrLeafManagerT& tree) : mRoot(tree.root()) { }
902
903 DynamicNodeManager(const DynamicNodeManager&) = delete;
904
905 /// @brief Return a reference to the root node.
906 const NonConstRootNodeType& root() const { return mRoot; }
907
908 /// @brief Threaded method that applies a user-supplied functor
909 /// to all the nodes in the tree.
910 ///
911 /// @param op user-supplied functor, see examples for interface details.
912 /// @param threaded optional toggle to disable threading, on by default.
913 /// @param leafGrainSize optional parameter to specify the grainsize
914 /// for threading over leaf nodes, one by default.
915 /// @param nonLeafGrainSize optional parameter to specify the grainsize
916 /// for threading over non-leaf nodes, one by default.
917 ///
918 /// @note There are two key differences to the interface of the
919 /// user-supplied functor to the NodeManager class - (1) the operator()
920 /// method aligns with the LeafManager class in expecting the index of the
921 /// node in a linear array of identical node types, (2) the operator()
922 /// method returns a boolean termination value with true indicating that
923 /// children of this node should be processed, false indicating the
924 /// early-exit termination should occur.
925 ///
926 /// @note Unlike the NodeManager, the foreach() method of the
927 /// DynamicNodeManager uses copy-by-reference for the user-supplied functor.
928 /// This can be an issue when using a shared Accessor or shared Sampler in
929 /// the operator as they are not inherently thread-safe. For these use
930 /// cases, it is recommended to create the Accessor or Sampler in the
931 /// operator execution itself.
932 ///
933 /// @par Example:
934 /// @code
935 /// // Functor to densify the first child node in a linear array. Note
936 /// // this implementation also illustrates how different
937 /// // computation can be applied to the different node types.
938 ///
939 /// template<typename TreeT>
940 /// struct DensifyOp
941 /// {
942 /// using RootT = typename TreeT::RootNodeType;
943 /// using LeafT = typename TreeT::LeafNodeType;
944 ///
945 /// DensifyOp() = default;
946 ///
947 /// // Processes the root node. Required by the DynamicNodeManager
948 /// bool operator()(RootT&, size_t) const { return true; }
949 ///
950 /// // Processes the internal nodes. Required by the DynamicNodeManager
951 /// template<typename NodeT>
952 /// bool operator()(NodeT& node, size_t idx) const
953 /// {
954 /// // densify child
955 /// for (auto iter = node.cbeginValueAll(); iter; ++iter) {
956 /// const openvdb::Coord ijk = iter.getCoord();
957 /// node.addChild(new typename NodeT::ChildNodeType(iter.getCoord(), NodeT::LEVEL, true));
958 /// }
959 /// // early-exit termination for all non-zero index children
960 /// return idx == 0;
961 /// }
962 /// // Processes the leaf nodes. Required by the DynamicNodeManager
963 /// bool operator()(LeafT&, size_t) const
964 /// {
965 /// return true;
966 /// }
967 /// };// DensifyOp
968 ///
969 /// // usage:
970 /// DensifyOp<FloatTree> op;
971 /// tree::DynamicNodeManager<FloatTree> nodes(tree);
972 /// nodes.foreachTopDown(op);
973 ///
974 /// @endcode
975 template<typename NodeOp>
976 void foreachTopDown(const NodeOp& op, bool threaded = true,
977 size_t leafGrainSize=1, size_t nonLeafGrainSize=1)
978 {
979 mChain.foreachTopDown(op, mRoot, threaded, leafGrainSize, nonLeafGrainSize);
980 }
981
982 /// @brief Threaded method that processes nodes with a user supplied functor
983 ///
984 /// @param op user-supplied functor, see examples for interface details.
985 /// @param threaded optional toggle to disable threading, on by default.
986 /// @param leafGrainSize optional parameter to specify the grainsize
987 /// for threading over leaf nodes, one by default.
988 /// @param nonLeafGrainSize optional parameter to specify the grainsize
989 /// for threading over non-leaf nodes, one by default.
990 ///
991 /// @note There are two key differences to the interface of the
992 /// user-supplied functor to the NodeManager class - (1) the operator()
993 /// method aligns with the LeafManager class in expecting the index of the
994 /// node in a linear array of identical node types, (2) the operator()
995 /// method returns a boolean termination value with true indicating that
996 /// children of this node should be processed, false indicating the
997 /// early-exit termination should occur.
998 ///
999 /// @par Example:
1000 /// @code
1001 /// // Functor to count nodes in a tree
1002 /// template<typename TreeType>
1003 /// struct NodeCountOp
1004 /// {
1005 /// NodeCountOp() : nodeCount(TreeType::DEPTH, 0), totalCount(0)
1006 /// {
1007 /// }
1008 /// NodeCountOp(const NodeCountOp& other, tbb::split) :
1009 /// nodeCount(TreeType::DEPTH, 0), totalCount(0)
1010 /// {
1011 /// }
1012 /// void join(const NodeCountOp& other)
1013 /// {
1014 /// for (size_t i = 0; i < nodeCount.size(); ++i) {
1015 /// nodeCount[i] += other.nodeCount[i];
1016 /// }
1017 /// totalCount += other.totalCount;
1018 /// }
1019 /// // do nothing for the root node
1020 /// bool operator()(const typename TreeT::RootNodeType& node, size_t)
1021 /// {
1022 /// return true;
1023 /// }
1024 /// // count the internal and leaf nodes
1025 /// template<typename NodeT>
1026 /// bool operator()(const NodeT& node, size_t)
1027 /// {
1028 /// ++(nodeCount[NodeT::LEVEL]);
1029 /// ++totalCount;
1030 /// return true;
1031 /// }
1032 /// std::vector<openvdb::Index64> nodeCount;
1033 /// openvdb::Index64 totalCount;
1034 /// };
1035 ///
1036 /// // usage:
1037 /// NodeCountOp<FloatTree> op;
1038 /// tree::DynamicNodeManager<FloatTree> nodes(tree);
1039 /// nodes.reduceTopDown(op);
1040 ///
1041 /// @endcode
1042 template<typename NodeOp>
1043 void reduceTopDown(NodeOp& op, bool threaded = true,
1044 size_t leafGrainSize=1, size_t nonLeafGrainSize=1)
1045 {
1046 mChain.reduceTopDown(op, mRoot, threaded, leafGrainSize, nonLeafGrainSize);
1047 }
1048
1049 protected:
1050 RootNodeType& mRoot;
1051 DynamicNodeManagerLink<ChildNodeType, LEVELS-1> mChain;
1052};// DynamicNodeManager class
1053
1054
1055
1056////////////////////////////////////////////
1057
1058
1059/// @private
1060/// Template specialization of the NodeManager with no caching of nodes
1061 template<typename TreeOrLeafManagerT>
1062 class NodeManager<TreeOrLeafManagerT, 0>
1063{
1064 public:
1065 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
1066 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
1067 static const Index LEVELS = 0;
1068
1069 NodeManager(TreeOrLeafManagerT& tree, bool /*serial*/ = false) : mRoot(tree.root()) { }
1070
1071 NodeManager(const NodeManager&) = delete;
1072
1073 /// @brief Clear all the cached tree nodes
1074 void clear() {}
1075
1076 /// @brief Clear and recache all the tree nodes from the
1077 /// tree. This is required if tree nodes have been added or removed.
1078 void rebuild(bool /*serial*/ = false) { }
1079
1080 /// @brief Return a reference to the root node.
1081 const RootNodeType& root() const { return mRoot; }
1082
1083 /// @brief Return the total number of cached nodes (excluding the root node)
1084 Index64 nodeCount() const { return 0; }
1085
1086 Index64 nodeCount(Index) const { return 0; }
1087
1088 template<typename NodeOp>
1089 void foreachBottomUp(const NodeOp& op, bool, size_t) { op(mRoot); }
1090
1091 template<typename NodeOp>
1092 void foreachTopDown(const NodeOp& op, bool, size_t) { op(mRoot); }
1093
1094 template<typename NodeOp>
1095 void reduceBottomUp(NodeOp& op, bool, size_t) { op(mRoot); }
1096
1097 template<typename NodeOp>
1098 void reduceTopDown(NodeOp& op, bool, size_t) { op(mRoot); }
1099
1100 protected:
1101 RootNodeType& mRoot;
1102}; // NodeManager<0>
1103
1104
1105////////////////////////////////////////////
1106
1107
1108/// @private
1109/// Template specialization of the NodeManager with one level of nodes
1110 template<typename TreeOrLeafManagerT>
1111 class NodeManager<TreeOrLeafManagerT, 1>
1112{
1113 public:
1114 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
1115 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
1116 static_assert(RootNodeType::LEVEL > 0, "expected instantiation of template specialization");
1117 static const Index LEVELS = 1;
1118
1119 NodeManager(TreeOrLeafManagerT& tree, bool serial = false)
1120 : mRoot(tree.root())
1121 {
1122 this->rebuild(serial);
1123 }
1124
1125 NodeManager(const NodeManager&) = delete;
1126
1127 /// @brief Clear all the cached tree nodes
1128 void clear() { mList0.clear(); }
1129
1130 /// @brief Clear and recache all the tree nodes from the
1131 /// tree. This is required if tree nodes have been added or removed.
1132 void rebuild(bool /*serial*/ = false) { mList0.initRootChildren(mRoot); }
1133
1134 /// @brief Return a reference to the root node.
1135 const RootNodeType& root() const { return mRoot; }
1136
1137 /// @brief Return the total number of cached nodes (excluding the root node)
1138 Index64 nodeCount() const { return mList0.nodeCount(); }
1139
1140 /// @brief Return the number of cached nodes at level @a i, where
1141 /// 0 corresponds to the lowest level.
1142 Index64 nodeCount(Index i) const { return i==0 ? mList0.nodeCount() : 0; }
1143
1144 template<typename NodeOp>
1145 void foreachBottomUp(const NodeOp& op, bool threaded = true, size_t grainSize=1)
1146 {
1147 mList0.foreach(op, threaded, grainSize);
1148 op(mRoot);
1149 }
1150
1151 template<typename NodeOp>
1152 void foreachTopDown(const NodeOp& op, bool threaded = true, size_t grainSize=1)
1153 {
1154 op(mRoot);
1155 mList0.foreach(op, threaded, grainSize);
1156 }
1157
1158 template<typename NodeOp>
1159 void reduceBottomUp(NodeOp& op, bool threaded = true, size_t grainSize=1)
1160 {
1161 mList0.reduce(op, threaded, grainSize);
1162 op(mRoot);
1163 }
1164
1165 template<typename NodeOp>
1166 void reduceTopDown(NodeOp& op, bool threaded = true, size_t grainSize=1)
1167 {
1168 op(mRoot);
1169 mList0.reduce(op, threaded, grainSize);
1170 }
1171
1172 protected:
1173 using NodeT1 = RootNodeType;
1174 using NonConstNodeT0 = typename NodeT1::ChildNodeType;
1175 using NodeT0 = typename CopyConstness<RootNodeType, NonConstNodeT0>::Type;
1176 using ListT0 = NodeList<NodeT0>;
1177
1178 NodeT1& mRoot;
1179 ListT0 mList0;
1180}; // NodeManager<1>
1181
1182
1183////////////////////////////////////////////
1184
1185
1186/// @private
1187/// Template specialization of the NodeManager with two levels of nodes
1188 template<typename TreeOrLeafManagerT>
1189 class NodeManager<TreeOrLeafManagerT, 2>
1190{
1191 public:
1192 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
1193 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
1194 static_assert(RootNodeType::LEVEL > 1, "expected instantiation of template specialization");
1195 static const Index LEVELS = 2;
1196
1197 NodeManager(TreeOrLeafManagerT& tree, bool serial = false) : mRoot(tree.root())
1198 {
1199 this->rebuild(serial);
1200 }
1201
1202 NodeManager(const NodeManager&) = delete;
1203
1204 /// @brief Clear all the cached tree nodes
1205 void clear() { mList0.clear(); mList1.clear(); }
1206
1207 /// @brief Clear and recache all the tree nodes from the
1208 /// tree. This is required if tree nodes have been added or removed.
1209 void rebuild(bool serial = false)
1210 {
1211 mList1.initRootChildren(mRoot);
1212 mList0.initNodeChildren(mList1, NodeFilter(), serial);
1213 }
1214
1215 /// @brief Return a reference to the root node.
1216 const RootNodeType& root() const { return mRoot; }
1217
1218 /// @brief Return the total number of cached nodes (excluding the root node)
1219 Index64 nodeCount() const { return mList0.nodeCount() + mList1.nodeCount(); }
1220
1221 /// @brief Return the number of cached nodes at level @a i, where
1222 /// 0 corresponds to the lowest level.
1223 Index64 nodeCount(Index i) const
1224 {
1225 return i==0 ? mList0.nodeCount() : i==1 ? mList1.nodeCount() : 0;
1226 }
1227
1228 template<typename NodeOp>
1229 void foreachBottomUp(const NodeOp& op, bool threaded = true, size_t grainSize=1)
1230 {
1231 mList0.foreach(op, threaded, grainSize);
1232 mList1.foreach(op, threaded, grainSize);
1233 op(mRoot);
1234 }
1235
1236 template<typename NodeOp>
1237 void foreachTopDown(const NodeOp& op, bool threaded = true, size_t grainSize=1)
1238 {
1239 op(mRoot);
1240 mList1.foreach(op, threaded, grainSize);
1241 mList0.foreach(op, threaded, grainSize);
1242 }
1243
1244 template<typename NodeOp>
1245 void reduceBottomUp(NodeOp& op, bool threaded = true, size_t grainSize=1)
1246 {
1247 mList0.reduce(op, threaded, grainSize);
1248 mList1.reduce(op, threaded, grainSize);
1249 op(mRoot);
1250 }
1251
1252 template<typename NodeOp>
1253 void reduceTopDown(NodeOp& op, bool threaded = true, size_t grainSize=1)
1254 {
1255 op(mRoot);
1256 mList1.reduce(op, threaded, grainSize);
1257 mList0.reduce(op, threaded, grainSize);
1258 }
1259
1260 protected:
1261 using NodeT2 = RootNodeType;
1262 using NonConstNodeT1 = typename NodeT2::ChildNodeType;
1263 using NodeT1 = typename CopyConstness<RootNodeType, NonConstNodeT1>::Type; // upper level
1264 using NonConstNodeT0 = typename NodeT1::ChildNodeType;
1265 using NodeT0 = typename CopyConstness<RootNodeType, NonConstNodeT0>::Type; // lower level
1266
1267 using ListT1 = NodeList<NodeT1>; // upper level
1268 using ListT0 = NodeList<NodeT0>; // lower level
1269
1270 NodeT2& mRoot;
1271 ListT1 mList1;
1272 ListT0 mList0;
1273}; // NodeManager<2>
1274
1275
1276////////////////////////////////////////////
1277
1278
1279/// @private
1280/// Template specialization of the NodeManager with three levels of nodes
1281 template<typename TreeOrLeafManagerT>
1282 class NodeManager<TreeOrLeafManagerT, 3>
1283{
1284 public:
1285 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
1286 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
1287 static_assert(RootNodeType::LEVEL > 2, "expected instantiation of template specialization");
1288 static const Index LEVELS = 3;
1289
1290 NodeManager(TreeOrLeafManagerT& tree, bool serial = false) : mRoot(tree.root())
1291 {
1292 this->rebuild(serial);
1293 }
1294
1295 NodeManager(const NodeManager&) = delete;
1296
1297 /// @brief Clear all the cached tree nodes
1298 void clear() { mList0.clear(); mList1.clear(); mList2.clear(); }
1299
1300 /// @brief Clear and recache all the tree nodes from the
1301 /// tree. This is required if tree nodes have been added or removed.
1302 void rebuild(bool serial = false)
1303 {
1304 mList2.initRootChildren(mRoot);
1305 mList1.initNodeChildren(mList2, NodeFilter(), serial);
1306 mList0.initNodeChildren(mList1, NodeFilter(), serial);
1307 }
1308
1309 /// @brief Return a reference to the root node.
1310 const RootNodeType& root() const { return mRoot; }
1311
1312 /// @brief Return the total number of cached nodes (excluding the root node)
1313 Index64 nodeCount() const { return mList0.nodeCount()+mList1.nodeCount()+mList2.nodeCount(); }
1314
1315 /// @brief Return the number of cached nodes at level @a i, where
1316 /// 0 corresponds to the lowest level.
1317 Index64 nodeCount(Index i) const
1318 {
1319 return i==0 ? mList0.nodeCount() : i==1 ? mList1.nodeCount()
1320 : i==2 ? mList2.nodeCount() : 0;
1321 }
1322
1323 template<typename NodeOp>
1324 void foreachBottomUp(const NodeOp& op, bool threaded = true, size_t grainSize=1)
1325 {
1326 mList0.foreach(op, threaded, grainSize);
1327 mList1.foreach(op, threaded, grainSize);
1328 mList2.foreach(op, threaded, grainSize);
1329 op(mRoot);
1330 }
1331
1332 template<typename NodeOp>
1333 void foreachTopDown(const NodeOp& op, bool threaded = true, size_t grainSize=1)
1334 {
1335 op(mRoot);
1336 mList2.foreach(op, threaded, grainSize);
1337 mList1.foreach(op, threaded, grainSize);
1338 mList0.foreach(op, threaded, grainSize);
1339 }
1340
1341 template<typename NodeOp>
1342 void reduceBottomUp(NodeOp& op, bool threaded = true, size_t grainSize=1)
1343 {
1344 mList0.reduce(op, threaded, grainSize);
1345 mList1.reduce(op, threaded, grainSize);
1346 mList2.reduce(op, threaded, grainSize);
1347 op(mRoot);
1348 }
1349
1350 template<typename NodeOp>
1351 void reduceTopDown(NodeOp& op, bool threaded = true, size_t grainSize=1)
1352 {
1353 op(mRoot);
1354 mList2.reduce(op, threaded, grainSize);
1355 mList1.reduce(op, threaded, grainSize);
1356 mList0.reduce(op, threaded, grainSize);
1357 }
1358
1359 protected:
1360 using NodeT3 = RootNodeType;
1361 using NonConstNodeT2 = typename NodeT3::ChildNodeType;
1362 using NodeT2 = typename CopyConstness<RootNodeType, NonConstNodeT2>::Type; // upper level
1363 using NonConstNodeT1 = typename NodeT2::ChildNodeType;
1364 using NodeT1 = typename CopyConstness<RootNodeType, NonConstNodeT1>::Type; // mid level
1365 using NonConstNodeT0 = typename NodeT1::ChildNodeType;
1366 using NodeT0 = typename CopyConstness<RootNodeType, NonConstNodeT0>::Type; // lower level
1367
1368 using ListT2 = NodeList<NodeT2>; // upper level of internal nodes
1369 using ListT1 = NodeList<NodeT1>; // lower level of internal nodes
1370 using ListT0 = NodeList<NodeT0>; // lower level of internal nodes or leafs
1371
1372 NodeT3& mRoot;
1373 ListT2 mList2;
1374 ListT1 mList1;
1375 ListT0 mList0;
1376}; // NodeManager<3>
1377
1378
1379////////////////////////////////////////////
1380
1381
1382/// @private
1383/// Template specialization of the NodeManager with four levels of nodes
1384 template<typename TreeOrLeafManagerT>
1385 class NodeManager<TreeOrLeafManagerT, 4>
1386{
1387 public:
1388 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
1389 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
1390 static_assert(RootNodeType::LEVEL > 3, "expected instantiation of template specialization");
1391 static const Index LEVELS = 4;
1392
1393 NodeManager(TreeOrLeafManagerT& tree, bool serial = false) : mRoot(tree.root())
1394 {
1395 this->rebuild(serial);
1396 }
1397
1398 NodeManager(const NodeManager&) = delete; // disallow copy-construction
1399
1400 /// @brief Clear all the cached tree nodes
1401 void clear() { mList0.clear(); mList1.clear(); mList2.clear(); mList3.clear(); }
1402
1403 /// @brief Clear and recache all the tree nodes from the
1404 /// tree. This is required if tree nodes have been added or removed.
1405 void rebuild(bool serial = false)
1406 {
1407 mList3.initRootChildren(mRoot);
1408 mList2.initNodeChildren(mList3, NodeFilter(), serial);
1409 mList1.initNodeChildren(mList2, NodeFilter(), serial);
1410 mList0.initNodeChildren(mList1, NodeFilter(), serial);
1411 }
1412
1413 /// @brief Return a reference to the root node.
1414 const RootNodeType& root() const { return mRoot; }
1415
1416 /// @brief Return the total number of cached nodes (excluding the root node)
1417 Index64 nodeCount() const
1418 {
1419 return mList0.nodeCount() + mList1.nodeCount()
1420 + mList2.nodeCount() + mList3.nodeCount();
1421 }
1422
1423 /// @brief Return the number of cached nodes at level @a i, where
1424 /// 0 corresponds to the lowest level.
1425 Index64 nodeCount(Index i) const
1426 {
1427 return i==0 ? mList0.nodeCount() : i==1 ? mList1.nodeCount() :
1428 i==2 ? mList2.nodeCount() : i==3 ? mList3.nodeCount() : 0;
1429 }
1430
1431 template<typename NodeOp>
1432 void foreachBottomUp(const NodeOp& op, bool threaded = true, size_t grainSize=1)
1433 {
1434 mList0.foreach(op, threaded, grainSize);
1435 mList1.foreach(op, threaded, grainSize);
1436 mList2.foreach(op, threaded, grainSize);
1437 mList3.foreach(op, threaded, grainSize);
1438 op(mRoot);
1439 }
1440
1441 template<typename NodeOp>
1442 void foreachTopDown(const NodeOp& op, bool threaded = true, size_t grainSize=1)
1443 {
1444 op(mRoot);
1445 mList3.foreach(op, threaded, grainSize);
1446 mList2.foreach(op, threaded, grainSize);
1447 mList1.foreach(op, threaded, grainSize);
1448 mList0.foreach(op, threaded, grainSize);
1449 }
1450
1451 template<typename NodeOp>
1452 void reduceBottomUp(NodeOp& op, bool threaded = true, size_t grainSize=1)
1453 {
1454 mList0.reduce(op, threaded, grainSize);
1455 mList1.reduce(op, threaded, grainSize);
1456 mList2.reduce(op, threaded, grainSize);
1457 mList3.reduce(op, threaded, grainSize);
1458 op(mRoot);
1459 }
1460
1461 template<typename NodeOp>
1462 void reduceTopDown(NodeOp& op, bool threaded = true, size_t grainSize=1)
1463 {
1464 op(mRoot);
1465 mList3.reduce(op, threaded, grainSize);
1466 mList2.reduce(op, threaded, grainSize);
1467 mList1.reduce(op, threaded, grainSize);
1468 mList0.reduce(op, threaded, grainSize);
1469 }
1470
1471 protected:
1472 using NodeT4 = RootNodeType;
1473 using NonConstNodeT3 = typename NodeT4::ChildNodeType;
1474 using NodeT3 = typename CopyConstness<RootNodeType, NonConstNodeT3>::Type; // upper level
1475 using NonConstNodeT2 = typename NodeT3::ChildNodeType;
1476 using NodeT2 = typename CopyConstness<RootNodeType, NonConstNodeT2>::Type; // upper mid level
1477 using NonConstNodeT1 = typename NodeT2::ChildNodeType;
1478 using NodeT1 = typename CopyConstness<RootNodeType, NonConstNodeT1>::Type; // lower mid level
1479 using NonConstNodeT0 = typename NodeT1::ChildNodeType;
1480 using NodeT0 = typename CopyConstness<RootNodeType, NonConstNodeT0>::Type; // lower level
1481
1482 using ListT3 = NodeList<NodeT3>; // upper level of internal nodes
1483 using ListT2 = NodeList<NodeT2>; // upper mid level of internal nodes
1484 using ListT1 = NodeList<NodeT1>; // lower mid level of internal nodes
1485 using ListT0 = NodeList<NodeT0>; // lower level of internal nodes or leafs
1486
1487 NodeT4& mRoot;
1488 ListT3 mList3;
1489 ListT2 mList2;
1490 ListT1 mList1;
1491 ListT0 mList0;
1492}; // NodeManager<4>
1493
1494
1495////////////////////////////////////////////
1496
1497
1498/// @private
1499/// Template specialization of the DynamicNodeManager with no caching of nodes
1500 template<typename TreeOrLeafManagerT>
1501 class DynamicNodeManager<TreeOrLeafManagerT, 0>
1502{
1503 public:
1504 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
1505 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
1506 static_assert(RootNodeType::LEVEL > 0, "expected instantiation of template specialization");
1507 static const Index LEVELS = 0;
1508
1509 explicit DynamicNodeManager(TreeOrLeafManagerT& tree) : mRoot(tree.root()) { }
1510
1511 DynamicNodeManager(const DynamicNodeManager&) = delete;
1512
1513 /// @brief Return a reference to the root node.
1514 const RootNodeType& root() const { return mRoot; }
1515
1516 template<typename NodeOp>
1517 void foreachTopDown(const NodeOp& op, bool /*threaded*/=true, size_t /*grainSize*/=1)
1518 {
1519 // root
1520 if (!op(mRoot, /*index=*/0)) return;
1521 }
1522
1523 template<typename NodeOp>
1524 void reduceTopDown(NodeOp& op, bool /*threaded*/=true, size_t /*grainSize*/=1)
1525 {
1526 // root
1527 if (!op(mRoot, /*index=*/0)) return;
1528 }
1529
1530 protected:
1531 using NodeT1 = RootNodeType;
1532
1533 NodeT1& mRoot;
1534};// DynamicNodeManager<0> class
1535
1536
1537////////////////////////////////////////////
1538
1539
1540/// @private
1541/// Template specialization of the DynamicNodeManager with one level of nodes
1542 template<typename TreeOrLeafManagerT>
1543 class DynamicNodeManager<TreeOrLeafManagerT, 1>
1544{
1545 public:
1546 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
1547 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
1548 static_assert(RootNodeType::LEVEL > 0, "expected instantiation of template specialization");
1549 static const Index LEVELS = 1;
1550
1551 explicit DynamicNodeManager(TreeOrLeafManagerT& tree) : mRoot(tree.root()) { }
1552
1553 DynamicNodeManager(const DynamicNodeManager&) = delete;
1554
1555 /// @brief Return a reference to the root node.
1556 const RootNodeType& root() const { return mRoot; }
1557
1558 template<typename NodeOp>
1559 void foreachTopDown(const NodeOp& op, bool threaded = true,
1560 size_t leafGrainSize=1, size_t /*nonLeafGrainSize*/ =1)
1561 {
1562 // root
1563 if (!op(mRoot, /*index=*/0)) return;
1564 // list0
1565 if (!mList0.initRootChildren(mRoot)) return;
1566 ForeachFilterOp<NodeOp> nodeOp(op, mList0.nodeCount());
1567 mList0.foreachWithIndex(nodeOp, threaded, leafGrainSize);
1568 }
1569
1570 template<typename NodeOp>
1571 void reduceTopDown(NodeOp& op, bool threaded = true,
1572 size_t leafGrainSize=1, size_t /*nonLeafGrainSize*/ =1)
1573 {
1574 // root
1575 if (!op(mRoot, /*index=*/0)) return;
1576 // list0
1577 if (!mList0.initRootChildren(mRoot)) return;
1578 ReduceFilterOp<NodeOp> nodeOp(op, mList0.nodeCount());
1579 mList0.reduceWithIndex(nodeOp, threaded, leafGrainSize);
1580 }
1581
1582 protected:
1583 using NodeT1 = RootNodeType;
1584 using NonConstNodeT0 = typename NodeT1::ChildNodeType;
1585 using NodeT0 = typename CopyConstness<RootNodeType, NonConstNodeT0>::Type;
1586 using ListT0 = NodeList<NodeT0>;
1587
1588 NodeT1& mRoot;
1589 ListT0 mList0;
1590};// DynamicNodeManager<1> class
1591
1592
1593////////////////////////////////////////////
1594
1595
1596/// @private
1597/// Template specialization of the DynamicNodeManager with two levels of nodes
1598 template<typename TreeOrLeafManagerT>
1599 class DynamicNodeManager<TreeOrLeafManagerT, 2>
1600{
1601 public:
1602 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
1603 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
1604 static_assert(RootNodeType::LEVEL > 1, "expected instantiation of template specialization");
1605 static const Index LEVELS = 2;
1606
1607 explicit DynamicNodeManager(TreeOrLeafManagerT& tree) : mRoot(tree.root()) { }
1608
1609 DynamicNodeManager(const DynamicNodeManager&) = delete;
1610
1611 /// @brief Return a reference to the root node.
1612 const RootNodeType& root() const { return mRoot; }
1613
1614 template<typename NodeOp>
1615 void foreachTopDown(const NodeOp& op, bool threaded = true,
1616 size_t leafGrainSize=1, size_t nonLeafGrainSize=1)
1617 {
1618 // root
1619 if (!op(mRoot, /*index=*/0)) return;
1620 // list1
1621 if (!mList1.initRootChildren(mRoot)) return;
1622 ForeachFilterOp<NodeOp> nodeOp(op, mList1.nodeCount());
1623 mList1.foreachWithIndex(nodeOp, threaded, nonLeafGrainSize);
1624 // list0
1625 if (!mList0.initNodeChildren(mList1, nodeOp, !threaded)) return;
1626 mList0.foreachWithIndex(op, threaded, leafGrainSize);
1627 }
1628
1629 template<typename NodeOp>
1630 void reduceTopDown(NodeOp& op, bool threaded = true,
1631 size_t leafGrainSize=1, size_t nonLeafGrainSize=1)
1632 {
1633 // root
1634 if (!op(mRoot, /*index=*/0)) return;
1635 // list1
1636 if (!mList1.initRootChildren(mRoot)) return;
1637 ReduceFilterOp<NodeOp> nodeOp(op, mList1.nodeCount());
1638 mList1.reduceWithIndex(nodeOp, threaded, nonLeafGrainSize);
1639 // list0
1640 if (!mList0.initNodeChildren(mList1, nodeOp, !threaded)) return;
1641 mList0.reduceWithIndex(op, threaded, leafGrainSize);
1642 }
1643
1644 protected:
1645 using NodeT2 = RootNodeType;
1646 using NonConstNodeT1 = typename NodeT2::ChildNodeType;
1647 using NodeT1 = typename CopyConstness<RootNodeType, NonConstNodeT1>::Type; // upper level
1648 using NonConstNodeT0 = typename NodeT1::ChildNodeType;
1649 using NodeT0 = typename CopyConstness<RootNodeType, NonConstNodeT0>::Type; // lower level
1650
1651 using ListT1 = NodeList<NodeT1>; // upper level
1652 using ListT0 = NodeList<NodeT0>; // lower level
1653
1654 NodeT2& mRoot;
1655 ListT1 mList1;
1656 ListT0 mList0;
1657};// DynamicNodeManager<2> class
1658
1659
1660////////////////////////////////////////////
1661
1662
1663/// @private
1664/// Template specialization of the DynamicNodeManager with three levels of nodes
1665 template<typename TreeOrLeafManagerT>
1666 class DynamicNodeManager<TreeOrLeafManagerT, 3>
1667{
1668 public:
1669 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
1670 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
1671 static_assert(RootNodeType::LEVEL > 2, "expected instantiation of template specialization");
1672 static const Index LEVELS = 3;
1673
1674 explicit DynamicNodeManager(TreeOrLeafManagerT& tree) : mRoot(tree.root()) { }
1675
1676 DynamicNodeManager(const DynamicNodeManager&) = delete;
1677
1678 /// @brief Return a reference to the root node.
1679 const RootNodeType& root() const { return mRoot; }
1680
1681 template<typename NodeOp>
1682 void foreachTopDown(const NodeOp& op, bool threaded = true,
1683 size_t leafGrainSize=1, size_t nonLeafGrainSize=1)
1684 {
1685 // root
1686 if (!op(mRoot, /*index=*/0)) return;
1687 // list2
1688 if (!mList2.initRootChildren(mRoot)) return;
1689 ForeachFilterOp<NodeOp> nodeOp2(op, mList2.nodeCount());
1690 mList2.foreachWithIndex(nodeOp2, threaded, nonLeafGrainSize);
1691 // list1
1692 if (!mList1.initNodeChildren(mList2, nodeOp2, !threaded)) return;
1693 ForeachFilterOp<NodeOp> nodeOp1(op, mList1.nodeCount());
1694 mList1.foreachWithIndex(nodeOp1, threaded, nonLeafGrainSize);
1695 // list0
1696 if (!mList0.initNodeChildren(mList1, nodeOp1, !threaded)) return;
1697 mList0.foreachWithIndex(op, threaded, leafGrainSize);
1698 }
1699
1700 template<typename NodeOp>
1701 void reduceTopDown(NodeOp& op, bool threaded = true,
1702 size_t leafGrainSize=1, size_t nonLeafGrainSize=1)
1703 {
1704 // root
1705 if (!op(mRoot, /*index=*/0)) return;
1706 // list2
1707 if (!mList2.initRootChildren(mRoot)) return;
1708 ReduceFilterOp<NodeOp> nodeOp2(op, mList2.nodeCount());
1709 mList2.reduceWithIndex(nodeOp2, threaded, nonLeafGrainSize);
1710 // list1
1711 if (!mList1.initNodeChildren(mList2, nodeOp2, !threaded)) return;
1712 ReduceFilterOp<NodeOp> nodeOp1(op, mList1.nodeCount());
1713 mList1.reduceWithIndex(nodeOp1, threaded, nonLeafGrainSize);
1714 // list0
1715 if (!mList0.initNodeChildren(mList1, nodeOp1, !threaded)) return;
1716 mList0.reduceWithIndex(op, threaded, leafGrainSize);
1717 }
1718
1719 protected:
1720 using NodeT3 = RootNodeType;
1721 using NonConstNodeT2 = typename NodeT3::ChildNodeType;
1722 using NodeT2 = typename CopyConstness<RootNodeType, NonConstNodeT2>::Type; // upper level
1723 using NonConstNodeT1 = typename NodeT2::ChildNodeType;
1724 using NodeT1 = typename CopyConstness<RootNodeType, NonConstNodeT1>::Type; // mid level
1725 using NonConstNodeT0 = typename NodeT1::ChildNodeType;
1726 using NodeT0 = typename CopyConstness<RootNodeType, NonConstNodeT0>::Type; // lower level
1727
1728 using ListT2 = NodeList<NodeT2>; // upper level of internal nodes
1729 using ListT1 = NodeList<NodeT1>; // lower level of internal nodes
1730 using ListT0 = NodeList<NodeT0>; // lower level of internal nodes or leafs
1731
1732 NodeT3& mRoot;
1733 ListT2 mList2;
1734 ListT1 mList1;
1735 ListT0 mList0;
1736};// DynamicNodeManager<3> class
1737
1738
1739////////////////////////////////////////////
1740
1741
1742/// @private
1743/// Template specialization of the DynamicNodeManager with four levels of nodes
1744 template<typename TreeOrLeafManagerT>
1745 class DynamicNodeManager<TreeOrLeafManagerT, 4>
1746{
1747 public:
1748 using NonConstRootNodeType = typename TreeOrLeafManagerT::RootNodeType;
1749 using RootNodeType = typename CopyConstness<TreeOrLeafManagerT, NonConstRootNodeType>::Type;
1750 static_assert(RootNodeType::LEVEL > 3, "expected instantiation of template specialization");
1751 static const Index LEVELS = 4;
1752
1753 explicit DynamicNodeManager(TreeOrLeafManagerT& tree) : mRoot(tree.root()) { }
1754
1755 DynamicNodeManager(const DynamicNodeManager&) = delete;
1756
1757 /// @brief Return a reference to the root node.
1758 const RootNodeType& root() const { return mRoot; }
1759
1760 template<typename NodeOp>
1761 void foreachTopDown(const NodeOp& op, bool threaded = true,
1762 size_t leafGrainSize=1, size_t nonLeafGrainSize=1)
1763 {
1764 // root
1765 if (!op(mRoot, /*index=*/0)) return;
1766 // list3
1767 if (!mList3.initRootChildren(mRoot)) return;
1768 ForeachFilterOp<NodeOp> nodeOp3(op, mList3.nodeCount());
1769 mList3.foreachWithIndex(nodeOp3, threaded, nonLeafGrainSize);
1770 // list2
1771 if (!mList2.initNodeChildren(mList3, nodeOp3, !threaded)) return;
1772 ForeachFilterOp<NodeOp> nodeOp2(op, mList2.nodeCount());
1773 mList2.foreachWithIndex(nodeOp2, threaded, nonLeafGrainSize);
1774 // list1
1775 if (!mList1.initNodeChildren(mList2, nodeOp2, !threaded)) return;
1776 ForeachFilterOp<NodeOp> nodeOp1(op, mList1.nodeCount());
1777 mList1.foreachWithIndex(nodeOp1, threaded, nonLeafGrainSize);
1778 // list0
1779 if (!mList0.initNodeChildren(mList1, nodeOp1, !threaded)) return;
1780 mList0.foreachWithIndex(op, threaded, leafGrainSize);
1781 }
1782
1783 template<typename NodeOp>
1784 void reduceTopDown(NodeOp& op, bool threaded = true,
1785 size_t leafGrainSize=1, size_t nonLeafGrainSize=1)
1786 {
1787 // root
1788 if (!op(mRoot, /*index=*/0)) return;
1789 // list3
1790 if (!mList3.initRootChildren(mRoot)) return;
1791 ReduceFilterOp<NodeOp> nodeOp3(op, mList3.nodeCount());
1792 mList3.reduceWithIndex(nodeOp3, threaded, nonLeafGrainSize);
1793 // list2
1794 if (!mList2.initNodeChildren(mList3, nodeOp3, !threaded)) return;
1795 ReduceFilterOp<NodeOp> nodeOp2(op, mList2.nodeCount());
1796 mList2.reduceWithIndex(nodeOp2, threaded, nonLeafGrainSize);
1797 // list1
1798 if (!mList1.initNodeChildren(mList2, nodeOp2, !threaded)) return;
1799 ReduceFilterOp<NodeOp> nodeOp1(op, mList1.nodeCount());
1800 mList1.reduceWithIndex(nodeOp1, threaded, nonLeafGrainSize);
1801 // list0
1802 if (!mList0.initNodeChildren(mList1, nodeOp1, !threaded)) return;
1803 mList0.reduceWithIndex(op, threaded, leafGrainSize);
1804 }
1805
1806 protected:
1807 using NodeT4 = RootNodeType;
1808 using NonConstNodeT3 = typename NodeT4::ChildNodeType;
1809 using NodeT3 = typename CopyConstness<RootNodeType, NonConstNodeT3>::Type; // upper level
1810 using NonConstNodeT2 = typename NodeT3::ChildNodeType;
1811 using NodeT2 = typename CopyConstness<RootNodeType, NonConstNodeT2>::Type; // upper mid level
1812 using NonConstNodeT1 = typename NodeT2::ChildNodeType;
1813 using NodeT1 = typename CopyConstness<RootNodeType, NonConstNodeT1>::Type; // lower mid level
1814 using NonConstNodeT0 = typename NodeT1::ChildNodeType;
1815 using NodeT0 = typename CopyConstness<RootNodeType, NonConstNodeT0>::Type; // lower level
1816
1817 using ListT3 = NodeList<NodeT3>; // upper level of internal nodes
1818 using ListT2 = NodeList<NodeT2>; // upper mid level of internal nodes
1819 using ListT1 = NodeList<NodeT1>; // lower mid level of internal nodes
1820 using ListT0 = NodeList<NodeT0>; // lower level of internal nodes or leafs
1821
1822 NodeT4& mRoot;
1823 ListT3 mList3;
1824 ListT2 mList2;
1825 ListT1 mList1;
1826 ListT0 mList0;
1827};// DynamicNodeManager<4> class
1828
1829
1830} // namespace tree
1831} // namespace OPENVDB_VERSION_NAME
1832} // namespace openvdb
1833
1834#endif // OPENVDB_TREE_NODEMANAGER_HAS_BEEN_INCLUDED
Types.h
openvdb::v11_0::tree::DynamicNodeManager::mRoot
RootNodeType & mRoot
Definition NodeManager.h:1050
openvdb::v11_0::tree::DynamicNodeManager::NonConstChildNodeType
typename RootNodeType::ChildNodeType NonConstChildNodeType
Definition NodeManager.h:897
openvdb::v11_0::tree::DynamicNodeManager::reduceTopDown
void reduceTopDown(NodeOp &op, bool threaded=true, size_t leafGrainSize=1, size_t nonLeafGrainSize=1)
Threaded method that processes nodes with a user supplied functor.
Definition NodeManager.h:1043
openvdb::v11_0::tree::DynamicNodeManager::root
const NonConstRootNodeType & root() const
Return a reference to the root node.
Definition NodeManager.h:906
openvdb::v11_0::tree::DynamicNodeManager::mChain
DynamicNodeManagerLink< ChildNodeType, LEVELS-1 > mChain
Definition NodeManager.h:1051
openvdb::v11_0::tree::DynamicNodeManager::foreachTopDown
void foreachTopDown(const NodeOp &op, bool threaded=true, size_t leafGrainSize=1, size_t nonLeafGrainSize=1)
Threaded method that applies a user-supplied functor to all the nodes in the tree.
Definition NodeManager.h:976
openvdb::v11_0::tree::DynamicNodeManager::LEVELS
static const Index LEVELS
Definition NodeManager.h:892
openvdb::v11_0::tree::DynamicNodeManager::RootNodeType
typename CopyConstness< TreeOrLeafManagerT, NonConstRootNodeType >::Type RootNodeType
Definition NodeManager.h:896
openvdb::v11_0::tree::DynamicNodeManager::ChildNodeType
typename CopyConstness< TreeOrLeafManagerT, NonConstChildNodeType >::Type ChildNodeType
Definition NodeManager.h:898
openvdb::v11_0::tree::DynamicNodeManager::DynamicNodeManager
DynamicNodeManager(const DynamicNodeManager &)=delete
openvdb::v11_0::tree::DynamicNodeManager::NonConstRootNodeType
typename TreeOrLeafManagerT::RootNodeType NonConstRootNodeType
Definition NodeManager.h:895
openvdb::v11_0::tree::DynamicNodeManager::DynamicNodeManager
DynamicNodeManager(TreeOrLeafManagerT &tree)
Definition NodeManager.h:901
openvdb::v11_0::tree::DynamicNodeManagerLink
This class is a link in a chain that each caches tree nodes of a specific type in a linear array.
Definition NodeManager.h:803
openvdb::v11_0::tree::DynamicNodeManagerLink::ChildNodeType
typename CopyConstness< NodeT, NonConstChildNodeType >::Type ChildNodeType
Definition NodeManager.h:806
openvdb::v11_0::tree::DynamicNodeManagerLink::reduceTopDownRecurse
void reduceTopDownRecurse(FilterOpT &filterOp, ParentT &parent, bool threaded, size_t leafGrainSize, size_t nonLeafGrainSize)
Definition NodeManager.h:843
openvdb::v11_0::tree::DynamicNodeManagerLink::foreachTopDown
void foreachTopDown(const NodeOpT &op, RootT &root, bool threaded, size_t leafGrainSize, size_t nonLeafGrainSize)
Definition NodeManager.h:811
openvdb::v11_0::tree::DynamicNodeManagerLink::reduceTopDown
void reduceTopDown(NodeOpT &op, RootT &root, bool threaded, size_t leafGrainSize, size_t nonLeafGrainSize)
Definition NodeManager.h:832
openvdb::v11_0::tree::DynamicNodeManagerLink::NonConstChildNodeType
typename NodeT::ChildNodeType NonConstChildNodeType
Definition NodeManager.h:805
openvdb::v11_0::tree::DynamicNodeManagerLink::DynamicNodeManagerLink
DynamicNodeManagerLink()=default
openvdb::v11_0::tree::DynamicNodeManagerLink::foreachTopDownRecurse
void foreachTopDownRecurse(const FilterOpT &filterOp, ParentT &parent, bool threaded, size_t leafGrainSize, size_t nonLeafGrainSize)
Definition NodeManager.h:822
openvdb::v11_0::tree::DynamicNodeManagerLink::mNext
DynamicNodeManagerLink< ChildNodeType, LEVEL-1 > mNext
Definition NodeManager.h:854
openvdb::v11_0::tree::DynamicNodeManagerLink::mList
NodeList< NodeT > mList
Definition NodeManager.h:853
openvdb::v11_0::tree::NodeList::NodeRange::Iterator
Definition NodeManager.h:209
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::test
bool test() const
Return true if this iterator is not yet exhausted.
Definition NodeManager.h:227
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::operator=
Iterator & operator=(const Iterator &)=default
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::isValid
bool isValid() const
Definition NodeManager.h:225
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::empty
bool empty() const
Return true if this iterator is exhausted.
Definition NodeManager.h:231
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::Iterator
Iterator(const Iterator &)=default
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::operator!=
bool operator!=(const Iterator &other) const
Definition NodeManager.h:232
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::operator*
NodeT & operator*() const
Return a reference to the node to which this iterator is pointing.
Definition NodeManager.h:220
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::nodeRange
const NodeRange & nodeRange() const
Definition NodeManager.h:237
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::pos
size_t pos() const
Return the index into the list of the current node.
Definition NodeManager.h:224
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::Iterator
Iterator(const NodeRange &range, size_t pos)
Definition NodeManager.h:211
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::operator->
NodeT * operator->() const
Return a pointer to the node to which this iterator is pointing.
Definition NodeManager.h:222
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::operator++
Iterator & operator++()
Advance to the next node.
Definition NodeManager.h:218
openvdb::v11_0::tree::NodeList::NodeRange::Iterator::operator==
bool operator==(const Iterator &other) const
Definition NodeManager.h:236
openvdb::v11_0::tree::NodeList::NodeRange
Definition NodeManager.h:188
openvdb::v11_0::tree::NodeList::NodeRange::begin
Iterator begin() const
Definition NodeManager.h:244
openvdb::v11_0::tree::NodeList::NodeRange::size
size_t size() const
Definition NodeManager.h:198
openvdb::v11_0::tree::NodeList::NodeRange::nodeList
const NodeList & nodeList() const
Definition NodeManager.h:202
openvdb::v11_0::tree::NodeList::NodeRange::is_divisible
bool is_divisible() const
Definition NodeManager.h:206
openvdb::v11_0::tree::NodeList::NodeRange::NodeRange
NodeRange(size_t begin, size_t end, const NodeList &nodeList, size_t grainSize=1)
Definition NodeManager.h:191
openvdb::v11_0::tree::NodeList::NodeRange::end
Iterator end() const
Definition NodeManager.h:246
openvdb::v11_0::tree::NodeList::NodeRange::empty
bool empty() const
Definition NodeManager.h:204
openvdb::v11_0::tree::NodeList::NodeRange::grainsize
size_t grainsize() const
Definition NodeManager.h:200
openvdb::v11_0::tree::NodeList::NodeRange::NodeRange
NodeRange(NodeRange &r, tbb::split)
Definition NodeManager.h:194
openvdb::v11_0::tree::NodeList
This class caches tree nodes of a specific type in a linear array.
Definition NodeManager.h:55
openvdb::v11_0::tree::NodeList::reduce
void reduce(NodeOp &op, bool threaded=true, size_t grainSize=1)
Definition NodeManager.h:275
openvdb::v11_0::tree::NodeList::NodeList
NodeList()=default
openvdb::v11_0::tree::NodeList::nodeCount
Index64 nodeCount() const
Definition NodeManager.h:63
openvdb::v11_0::tree::NodeList::nodeRange
NodeRange nodeRange(size_t grainsize=1) const
Return a TBB-compatible NodeRange.
Definition NodeManager.h:262
openvdb::v11_0::tree::NodeList::operator()
NodeT & operator()(size_t n) const
Definition NodeManager.h:59
openvdb::v11_0::tree::NodeList::reduceWithIndex
void reduceWithIndex(NodeOp &op, bool threaded=true, size_t grainSize=1)
Definition NodeManager.h:292
openvdb::v11_0::tree::NodeList< NodeT0 >::mNodePtrs
std::unique_ptr< NodeT0 *[]> mNodePtrs
Definition NodeManager.h:389
openvdb::v11_0::tree::NodeList< NodeT0 >::mNodes
NodeT0 ** mNodes
Definition NodeManager.h:390
openvdb::v11_0::tree::NodeList::initNodeChildren
bool initNodeChildren(ParentsT &parents, const NodeFilterT &nodeFilter=NodeFilterT(), bool serial=false)
Definition NodeManager.h:105
openvdb::v11_0::tree::NodeList::foreachWithIndex
void foreachWithIndex(const NodeOp &op, bool threaded=true, size_t grainSize=1)
Definition NodeManager.h:284
openvdb::v11_0::tree::NodeList::operator[]
NodeT *& operator[](size_t n)
Definition NodeManager.h:61
openvdb::v11_0::tree::NodeList::clear
void clear()
Definition NodeManager.h:65
openvdb::v11_0::tree::NodeList< NodeT0 >::mNodeCount
size_t mNodeCount
Definition NodeManager.h:388
openvdb::v11_0::tree::NodeList::initRootChildren
bool initRootChildren(RootT &root)
Definition NodeManager.h:74
openvdb::v11_0::tree::NodeManager
To facilitate threading over the nodes of a tree, cache node pointers in linear arrays,...
Definition NodeManager.h:531
openvdb::v11_0::tree::NodeManager::reduceTopDown
void reduceTopDown(NodeOp &op, bool threaded=true, size_t grainSize=1)
Definition NodeManager.h:705
openvdb::v11_0::tree::NodeManager::mRoot
RootNodeType & mRoot
Definition NodeManager.h:713
openvdb::v11_0::tree::NodeManager::NodeManager
NodeManager(TreeOrLeafManagerT &tree, bool serial=false)
Definition NodeManager.h:542
openvdb::v11_0::tree::NodeManager::NonConstChildNodeType
typename RootNodeType::ChildNodeType NonConstChildNodeType
Definition NodeManager.h:538
openvdb::v11_0::tree::NodeManager::rebuild
void rebuild(bool serial=false)
Clear and recache all the tree nodes from the tree. This is required if tree nodes have been added or...
Definition NodeManager.h:555
openvdb::v11_0::tree::NodeManager::nodeCount
Index64 nodeCount() const
Return the total number of cached nodes (excluding the root node)
Definition NodeManager.h:561
openvdb::v11_0::tree::NodeManager::NodeManager
NodeManager(const NodeManager &)=delete
openvdb::v11_0::tree::NodeManager::foreachTopDown
void foreachTopDown(const NodeOp &op, bool threaded=true, size_t grainSize=1)
Definition NodeManager.h:631
openvdb::v11_0::tree::NodeManager::foreachBottomUp
void foreachBottomUp(const NodeOp &op, bool threaded=true, size_t grainSize=1)
Threaded method that applies a user-supplied functor to all the nodes in the tree.
Definition NodeManager.h:624
openvdb::v11_0::tree::NodeManager::mChain
NodeManagerLink< ChildNodeType, LEVELS-1 > mChain
Definition NodeManager.h:714
openvdb::v11_0::tree::NodeManager::reduceBottomUp
void reduceBottomUp(NodeOp &op, bool threaded=true, size_t grainSize=1)
Threaded method that processes nodes with a user supplied functor.
Definition NodeManager.h:698
openvdb::v11_0::tree::NodeManager::LEVELS
static const Index LEVELS
Definition NodeManager.h:533
openvdb::v11_0::tree::NodeManager::RootNodeType
typename CopyConstness< TreeOrLeafManagerT, NonConstRootNodeType >::Type RootNodeType
Definition NodeManager.h:537
openvdb::v11_0::tree::NodeManager::ChildNodeType
typename CopyConstness< TreeOrLeafManagerT, NonConstChildNodeType >::Type ChildNodeType
Definition NodeManager.h:539
openvdb::v11_0::tree::NodeManager::nodeCount
Index64 nodeCount(Index i) const
Return the number of cached nodes at level i, where 0 corresponds to the lowest level.
Definition NodeManager.h:565
openvdb::v11_0::tree::NodeManager::NonConstRootNodeType
typename TreeOrLeafManagerT::RootNodeType NonConstRootNodeType
Definition NodeManager.h:536
openvdb::v11_0::tree::NodeManager::clear
void clear()
Clear all the cached tree nodes.
Definition NodeManager.h:551
openvdb::v11_0::tree::NodeManager::root
const RootNodeType & root() const
Return a reference to the root node.
Definition NodeManager.h:558
openvdb::v11_0::tree::NodeManagerLink
This class is a link in a chain that each caches tree nodes of a specific type in a linear array.
Definition NodeManager.h:403
openvdb::v11_0::tree::NodeManagerLink::ChildNodeType
typename CopyConstness< NodeT, NonConstChildNodeType >::Type ChildNodeType
Definition NodeManager.h:406
openvdb::v11_0::tree::NodeManagerLink::NodeManagerLink
NodeManagerLink()=default
openvdb::v11_0::tree::NodeManagerLink::reduceTopDown
void reduceTopDown(NodeOp &op, bool threaded, size_t grainSize)
Definition NodeManager.h:455
openvdb::v11_0::tree::NodeManagerLink::nodeCount
Index64 nodeCount() const
Definition NodeManager.h:426
openvdb::v11_0::tree::NodeManagerLink::initNodeChildren
void initNodeChildren(ParentsT &parents, bool serial=false)
Definition NodeManager.h:420
openvdb::v11_0::tree::NodeManagerLink::reduceBottomUp
void reduceBottomUp(NodeOp &op, bool threaded, size_t grainSize)
Definition NodeManager.h:448
openvdb::v11_0::tree::NodeManagerLink::foreachBottomUp
void foreachBottomUp(const NodeOp &op, bool threaded, size_t grainSize)
Definition NodeManager.h:434
openvdb::v11_0::tree::NodeManagerLink::foreachTopDown
void foreachTopDown(const NodeOp &op, bool threaded, size_t grainSize)
Definition NodeManager.h:441
openvdb::v11_0::tree::NodeManagerLink::mNext
NodeManagerLink< ChildNodeType, LEVEL-1 > mNext
Definition NodeManager.h:463
openvdb::v11_0::tree::NodeManagerLink::NonConstChildNodeType
typename NodeT::ChildNodeType NonConstChildNodeType
Definition NodeManager.h:405
openvdb::v11_0::tree::NodeManagerLink::nodeCount
Index64 nodeCount(Index i) const
Definition NodeManager.h:428
openvdb::v11_0::tree::NodeManagerLink::clear
void clear()
Definition NodeManager.h:410
openvdb::v11_0::tree::NodeManagerLink::initRootChildren
void initRootChildren(RootT &root, bool serial=false)
Definition NodeManager.h:413
openvdb::v11_0::tree::NodeManagerLink::mList
NodeList< NodeT > mList
Definition NodeManager.h:462
openvdb::v11_0::string::split
void split(ContainerT &out, const std::string &in, const char delim)
Definition Name.h:43
openvdb::v11_0::tree::iter
Definition TreeIterator.h:29
openvdb::v11_0::tree
Definition PointDataGrid.h:169
openvdb::v11_0::Index
Index32 Index
Definition Types.h:54
openvdb::v11_0::Index64
uint64_t Index64
Definition Types.h:53
openvdb
Definition Exceptions.h:13
std
Definition Coord.h:589
openvdb::v11_0::CopyConstness::Type
typename std::remove_const< ToType >::type Type
Definition Types.h:439
openvdb::v11_0::tree::ForeachFilterOp
Definition NodeManager.h:725
openvdb::v11_0::tree::ForeachFilterOp::op
const OpT & op() const
Definition NodeManager.h:743
openvdb::v11_0::tree::ForeachFilterOp::operator()
void operator()(NodeT &node, size_t idx) const
Definition NodeManager.h:736
openvdb::v11_0::tree::ForeachFilterOp::ForeachFilterOp
ForeachFilterOp(const OpT &op, openvdb::Index64 size)
Definition NodeManager.h:726
openvdb::v11_0::tree::ForeachFilterOp::valid
bool valid(size_t idx) const
Definition NodeManager.h:741
openvdb::v11_0::tree::ForeachFilterOp::ForeachFilterOp
ForeachFilterOp(const ForeachFilterOp &other)
Definition NodeManager.h:731
openvdb::v11_0::tree::NodeFilter
Definition NodeManager.h:45
openvdb::v11_0::tree::NodeFilter::valid
static bool valid(size_t)
Definition NodeManager.h:46
openvdb::v11_0::tree::ReduceFilterOp
Definition NodeManager.h:756
openvdb::v11_0::tree::ReduceFilterOp::operator()
void operator()(NodeT &node, size_t idx) const
Definition NodeManager.h:772
openvdb::v11_0::tree::ReduceFilterOp::valid
bool valid(size_t idx) const
Definition NodeManager.h:782
openvdb::v11_0::tree::ReduceFilterOp::ReduceFilterOp
ReduceFilterOp(const ReduceFilterOp &other)
Definition NodeManager.h:762
openvdb::v11_0::tree::ReduceFilterOp::ReduceFilterOp
ReduceFilterOp(const ReduceFilterOp &other, tbb::split)
Definition NodeManager.h:766
openvdb::v11_0::tree::ReduceFilterOp::ReduceFilterOp
ReduceFilterOp(OpT &op, openvdb::Index64 size)
Definition NodeManager.h:757
openvdb::v11_0::tree::ReduceFilterOp::op
OpT & op()
Definition NodeManager.h:787
openvdb::v11_0::tree::ReduceFilterOp::join
void join(const ReduceFilterOp &other)
Definition NodeManager.h:777
OPENVDB_VERSION_NAME
#define OPENVDB_VERSION_NAME
The version namespace name for this library version.
Definition version.h.in:121
OPENVDB_USE_VERSION_NAMESPACE
#define OPENVDB_USE_VERSION_NAMESPACE
Definition version.h.in:212