OpenVDB  3.2.0
Dense.h
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35 
36 #ifndef OPENVDB_TOOLS_DENSE_HAS_BEEN_INCLUDED
37 #define OPENVDB_TOOLS_DENSE_HAS_BEEN_INCLUDED
38 
39 #include <openvdb/Types.h>
40 #include <openvdb/Grid.h>
41 #include <openvdb/tree/ValueAccessor.h>
42 #include <openvdb/Exceptions.h>
43 #include <openvdb/util/Formats.h>
44 #include <tbb/parallel_for.h>
45 #include <boost/scoped_array.hpp>
46 #include <boost/scoped_ptr.hpp>
47 #include "Prune.h"
48 
49 namespace openvdb {
51 namespace OPENVDB_VERSION_NAME {
52 namespace tools {
53 
59 template<typename DenseT, typename GridOrTreeT>
60 void
62  const GridOrTreeT& sparse,
63  DenseT& dense,
64  bool serial = false);
65 
66 
73 template<typename DenseT, typename GridOrTreeT>
74 void
76  const DenseT& dense,
77  GridOrTreeT& sparse,
78  const typename GridOrTreeT::ValueType& tolerance,
79  bool serial = false);
80 
81 
83 
93 
97 template<typename ValueT, MemoryLayout Layout> class DenseBase;
98 
102 template<typename ValueT>
103 class DenseBase<ValueT, LayoutZYX>
104 {
105 public:
112  inline size_t coordToOffset(size_t i, size_t j, size_t k) const { return i*mX + j*mY + k; }
113 
118  inline Coord offsetToLocalCoord(size_t n) const
119  {
120  const size_t x = n / mX;
121  n -= mX*x;
122  const size_t y = n / mY;
123  return Coord(Coord::ValueType(x), Coord::ValueType(y), Coord::ValueType(n - mY*y));
124  }
125 
128  inline size_t xStride() const { return mX; }
129 
132  inline size_t yStride() const { return mY; }
133 
136  static size_t zStride() { return 1; }
137 
138 protected:
140  DenseBase(const CoordBBox& bbox) : mBBox(bbox), mY(bbox.dim()[2]), mX(mY*bbox.dim()[1]) {}
141 
142  const CoordBBox mBBox;//signed coordinates of the domain represented by the grid
143  const size_t mY, mX;//strides in the y and x direction
144 };// end of DenseBase<ValueT, LayoutZYX>
145 
149 template<typename ValueT>
150 class DenseBase<ValueT, LayoutXYZ>
151 {
152 public:
159  inline size_t coordToOffset(size_t i, size_t j, size_t k) const { return i + j*mY + k*mZ; }
160 
165  inline Coord offsetToLocalCoord(size_t n) const
166  {
167  const size_t z = n / mZ;
168  n -= mZ*z;
169  const size_t y = n / mY;
170  return Coord(Coord::ValueType(n - mY*y), Coord::ValueType(y), Coord::ValueType(z));
171  }
172 
175  static size_t xStride() { return 1; }
176 
179  inline size_t yStride() const { return mY; }
180 
183  inline size_t zStride() const { return mZ; }
184 
185 protected:
187  DenseBase(const CoordBBox& bbox) : mBBox(bbox), mY(bbox.dim()[0]), mZ(mY*bbox.dim()[1]) {}
188 
189  const CoordBBox mBBox;//signed coordinates of the domain represented by the grid
190  const size_t mY, mZ;//strides in the y and z direction
191 };// end of DenseBase<ValueT, LayoutXYZ>
192 
205 template<typename ValueT, MemoryLayout Layout = LayoutZYX>
206 class Dense : public DenseBase<ValueT, Layout>
207 {
208 public:
209  typedef ValueT ValueType;
211  typedef boost::shared_ptr<Dense> Ptr;
212  typedef boost::shared_ptr<const Dense> ConstPtr;
213 
219  Dense(const CoordBBox& bbox) : BaseT(bbox) { this->init(); }
220 
227  Dense(const CoordBBox& bbox, const ValueT& value) : BaseT(bbox)
228  {
229  this->init();
230  this->fill(value);
231  }
232 
242  Dense(const CoordBBox& bbox, ValueT* data) : BaseT(bbox), mData(data)
243  {
244  if (BaseT::mBBox.empty()) {
245  OPENVDB_THROW(ValueError, "can't construct a dense grid with an empty bounding box");
246  }
247  }
248 
256  Dense(const Coord& dim, const Coord& min = Coord(0))
257  : BaseT(CoordBBox(min, min+dim.offsetBy(-1)))
258  {
259  this->init();
260  }
261 
263  static MemoryLayout memoryLayout() { return Layout; }
264 
267  inline ValueT* data() { return mData; }
268 
271  inline const ValueT* data() const { return mData; }
272 
275  inline const CoordBBox& bbox() const { return BaseT::mBBox; }
276 
278  inline const Coord& origin() const { return BaseT::mBBox.min(); }
279 
281  inline Index64 valueCount() const { return BaseT::mBBox.volume(); }
282 
284  inline void setValue(size_t offset, const ValueT& value) { mData[offset] = value; }
285 
287  const ValueT& getValue(size_t offset) const { return mData[offset]; }
288 
290  ValueT& getValue(size_t offset) { return mData[offset]; }
291 
294  inline void setValue(size_t i, size_t j, size_t k, const ValueT& value)
295  {
296  mData[BaseT::coordToOffset(i,j,k)] = value;
297  }
298 
301  inline const ValueT& getValue(size_t i, size_t j, size_t k) const
302  {
303  return mData[BaseT::coordToOffset(i,j,k)];
304  }
305 
308  inline ValueT& getValue(size_t i, size_t j, size_t k)
309  {
310  return mData[BaseT::coordToOffset(i,j,k)];
311  }
312 
315  inline void setValue(const Coord& xyz, const ValueT& value)
316  {
317  mData[this->coordToOffset(xyz)] = value;
318  }
319 
322  inline const ValueT& getValue(const Coord& xyz) const
323  {
324  return mData[this->coordToOffset(xyz)];
325  }
326 
329  inline ValueT& getValue(const Coord& xyz)
330  {
331  return mData[this->coordToOffset(xyz)];
332  }
333 
335  inline void fill(const ValueT& value)
336  {
337  size_t size = this->valueCount();
338  ValueT* a = mData;
339  while(size--) *a++ = value;
340  }
341 
348  inline size_t coordToOffset(const Coord& xyz) const
349  {
350  assert(BaseT::mBBox.isInside(xyz));
351  return BaseT::coordToOffset(size_t(xyz[0]-BaseT::mBBox.min()[0]),
352  size_t(xyz[1]-BaseT::mBBox.min()[1]),
353  size_t(xyz[2]-BaseT::mBBox.min()[2]));
354  }
355 
357  inline Coord offsetToCoord(size_t n) const
358  {
359  return this->offsetToLocalCoord(n) + BaseT::mBBox.min();
360  }
361 
363  inline Index64 memUsage() const
364  {
365  return sizeof(*this) + BaseT::mBBox.volume() * sizeof(ValueType);
366  }
367 
370  void print(const std::string& name = "", std::ostream& os = std::cout) const
371  {
372  const Coord dim = BaseT::mBBox.dim();
373  os << "Dense Grid";
374  if (!name.empty()) os << " \"" << name << "\"";
375  util::printBytes(os, this->memUsage(), ":\n Memory footprint: ");
376  os << " Dimensions of grid : " << dim[0] << " x " << dim[1] << " x " << dim[2] << "\n";
377  os << " Number of voxels: " << util::formattedInt(this->valueCount()) << "\n";
378  os << " Bounding box of voxels: " << BaseT::mBBox << "\n";
379  os << " Memory layout: " << (Layout == LayoutZYX ? "ZYX (" : "XYZ (dis")
380  << "similar to VDB)\n";
381  }
382 
383 private:
384 
386  void init()
387  {
388  if (BaseT::mBBox.empty()) {
389  OPENVDB_THROW(ValueError, "can't construct a dense grid with an empty bounding box");
390  }
391  mArray.reset(new ValueT[BaseT::mBBox.volume()]);
392  mData = mArray.get();
393  }
394 
395  boost::scoped_array<ValueT> mArray;
396  ValueT* mData;//raw c-style pointer to values
397 };// end of Dense
398 
400 
401 
408 template<typename _TreeT, typename _DenseT = Dense<typename _TreeT::ValueType> >
410 {
411 public:
412  typedef _DenseT DenseT;
413  typedef _TreeT TreeT;
414  typedef typename TreeT::ValueType ValueT;
415 
416  CopyToDense(const TreeT& tree, DenseT& dense)
417  : mRoot(&(tree.root())), mDense(&dense) {}
418 
419  void copy(bool serial = false) const
420  {
421  if (serial) {
422  mRoot->copyToDense(mDense->bbox(), *mDense);
423  } else {
424  tbb::parallel_for(mDense->bbox(), *this);
425  }
426  }
427 
429  void operator()(const CoordBBox& bbox) const
430  {
431  mRoot->copyToDense(bbox, *mDense);
432  }
433 
434 private:
435  const typename TreeT::RootNodeType* mRoot;
436  DenseT* mDense;
437 };// CopyToDense
438 
439 
440 // Convenient wrapper function for the CopyToDense class
441 template<typename DenseT, typename GridOrTreeT>
442 void
443 copyToDense(const GridOrTreeT& sparse, DenseT& dense, bool serial)
444 {
445  typedef TreeAdapter<GridOrTreeT> Adapter;
446  typedef typename Adapter::TreeType TreeT;
447 
448  CopyToDense<TreeT, DenseT> op(Adapter::constTree(sparse), dense);
449  op.copy(serial);
450 }
451 
452 
454 
455 
465 template<typename _TreeT, typename _DenseT = Dense<typename _TreeT::ValueType> >
467 {
468 public:
469  typedef _DenseT DenseT;
470  typedef _TreeT TreeT;
471  typedef typename TreeT::ValueType ValueT;
472  typedef typename TreeT::LeafNodeType LeafT;
474 
475  CopyFromDense(const DenseT& dense, TreeT& tree, const ValueT& tolerance)
476  : mDense(&dense),
477  mTree(&tree),
478  mBlocks(NULL),
479  mTolerance(tolerance),
480  mAccessor(tree.empty() ? NULL : new AccessorT(tree))
481  {
482  }
484  : mDense(other.mDense),
485  mTree(other.mTree),
486  mBlocks(other.mBlocks),
487  mTolerance(other.mTolerance),
488  mAccessor(other.mAccessor.get() == NULL ? NULL : new AccessorT(*mTree))
489  {
490  }
491 
493  void copy(bool serial = false)
494  {
495  mBlocks = new std::vector<Block>();
496  const CoordBBox& bbox = mDense->bbox();
497  // Pre-process: Construct a list of blocks aligned with (potential) leaf nodes
498  for (CoordBBox sub=bbox; sub.min()[0] <= bbox.max()[0]; sub.min()[0] = sub.max()[0] + 1) {
499  for (sub.min()[1] = bbox.min()[1]; sub.min()[1] <= bbox.max()[1];
500  sub.min()[1] = sub.max()[1] + 1)
501  {
502  for (sub.min()[2] = bbox.min()[2]; sub.min()[2] <= bbox.max()[2];
503  sub.min()[2] = sub.max()[2] + 1)
504  {
505  sub.max() = Coord::minComponent(bbox.max(),
506  (sub.min()&(~(LeafT::DIM-1u))).offsetBy(LeafT::DIM-1u));
507  mBlocks->push_back(Block(sub));
508  }
509  }
510  }
511 
512  // Multi-threaded process: Convert dense grid into leaf nodes and tiles
513  if (serial) {
514  (*this)(tbb::blocked_range<size_t>(0, mBlocks->size()));
515  } else {
516  tbb::parallel_for(tbb::blocked_range<size_t>(0, mBlocks->size()), *this);
517  }
518 
519  // Post-process: Insert leaf nodes and tiles into the tree, and prune the tiles only!
520  tree::ValueAccessor<TreeT> acc(*mTree);
521  for (size_t m=0, size = mBlocks->size(); m<size; ++m) {
522  Block& block = (*mBlocks)[m];
523  if (block.leaf) {
524  acc.addLeaf(block.leaf);
525  } else if (block.tile.second) {//only background tiles are inactive
526  acc.addTile(1, block.bbox.min(), block.tile.first, true);//leaf tile
527  }
528  }
529  delete mBlocks;
530  mBlocks = NULL;
531 
532  tools::pruneTiles(*mTree, mTolerance);//multi-threaded
533  }
534 
537  void operator()(const tbb::blocked_range<size_t> &r) const
538  {
539  assert(mBlocks);
540  LeafT* leaf = new LeafT();
541 
542  for (size_t m=r.begin(), n=0, end = r.end(); m != end; ++m, ++n) {
543 
544  Block& block = (*mBlocks)[m];
545  const CoordBBox &bbox = block.bbox;
546 
547  if (mAccessor.get() == NULL) {//i.e. empty target tree
548  leaf->fill(mTree->background(), false);
549  } else {//account for existing leaf nodes in the target tree
550  if (const LeafT* target = mAccessor->probeConstLeaf(bbox.min())) {
551  (*leaf) = (*target);
552  } else {
553  ValueT value = zeroVal<ValueT>();
554  bool state = mAccessor->probeValue(bbox.min(), value);
555  leaf->fill(value, state);
556  }
557  }
558 
559  leaf->copyFromDense(bbox, *mDense, mTree->background(), mTolerance);
560 
561  if (!leaf->isConstant(block.tile.first, block.tile.second, mTolerance)) {
562  leaf->setOrigin(bbox.min() & (~(LeafT::DIM - 1)));
563  block.leaf = leaf;
564  leaf = new LeafT();
565  }
566  }// loop over blocks
567 
568  delete leaf;
569  }
570 
571 private:
572  struct Block {
573  CoordBBox bbox;
574  LeafT* leaf;
575  std::pair<ValueT, bool> tile;
576  Block(const CoordBBox& b) : bbox(b), leaf(NULL) {}
577  };
578 
579  const DenseT* mDense;
580  TreeT* mTree;
581  std::vector<Block>* mBlocks;
582  ValueT mTolerance;
583  boost::scoped_ptr<AccessorT> mAccessor;
584 };// CopyFromDense
585 
586 
587 // Convenient wrapper function for the CopyFromDense class
588 template<typename DenseT, typename GridOrTreeT>
589 void
590 copyFromDense(const DenseT& dense, GridOrTreeT& sparse,
591  const typename GridOrTreeT::ValueType& tolerance, bool serial)
592 {
593  typedef TreeAdapter<GridOrTreeT> Adapter;
594  typedef typename Adapter::TreeType TreeT;
595 
596  CopyFromDense<TreeT, DenseT> op(dense, Adapter::tree(sparse), tolerance);
597  op.copy(serial);
598 }
599 
600 } // namespace tools
601 } // namespace OPENVDB_VERSION_NAME
602 } // namespace openvdb
603 
604 #endif // OPENVDB_TOOLS_DENSE_HAS_BEEN_INCLUDED
605 
606 // Copyright (c) 2012-2016 DreamWorks Animation LLC
607 // All rights reserved. This software is distributed under the
608 // Mozilla Public License 2.0 ( http://www.mozilla.org/MPL/2.0/ )
void addLeaf(LeafNodeT *leaf)
Add the specified leaf to this tree, possibly creating a child branch in the process. If the leaf node already exists, replace it.
Definition: ValueAccessor.h:374
Coord offsetToCoord(size_t n) const
Return the global coordinate corresponding to the specified linear offset.
Definition: Dense.h:357
void operator()(const tbb::blocked_range< size_t > &r) const
Public method called by tbb::parallel_for.
Definition: Dense.h:537
const CoordBBox & bbox() const
Return the bounding box of the signed index domain of this grid.
Definition: Dense.h:275
const ValueT & getValue(size_t offset) const
Return a const reference to the value of the voxel at the given array offset.
Definition: Dense.h:287
size_t yStride() const
Return the stride of the array in the y direction ( = dimZ).
Definition: Dense.h:132
const Coord & origin() const
Return the grid&#39;s origin in index coordinates.
Definition: Dense.h:278
Definition: Dense.h:92
size_t zStride() const
Return the stride of the array in the y direction ( = dimX*dimY).
Definition: Dense.h:183
Vec2< T > minComponent(const Vec2< T > &v1, const Vec2< T > &v2)
Return component-wise minimum of the two vectors.
Definition: Vec2.h:519
void copyToDense(const GridOrTreeT &sparse, DenseT &dense, bool serial=false)
Populate a dense grid with the values of voxels from a sparse grid, where the sparse grid intersects ...
Definition: Dense.h:443
TreeT::ValueType ValueT
Definition: Dense.h:414
const ValueT & getValue(const Coord &xyz) const
Return a const reference to the value of the voxel at the given signed coordinates.
Definition: Dense.h:322
size_t coordToOffset(size_t i, size_t j, size_t k) const
Return the linear offset into this grid&#39;s value array given by unsigned coordinates (i...
Definition: Dense.h:159
void copy(bool serial=false)
Copy values from the dense grid to the sparse tree.
Definition: Dense.h:493
Definition: Dense.h:92
#define OPENVDB_THROW(exception, message)
Definition: Exceptions.h:97
TreeT::ValueType ValueT
Definition: Dense.h:471
Copy an OpenVDB tree into an existing dense grid.
Definition: Dense.h:409
Coord offsetToLocalCoord(size_t n) const
Return the index coordinate corresponding to the specified linear offset.
Definition: Dense.h:165
size_t coordToOffset(size_t i, size_t j, size_t k) const
Return the linear offset into this grid&#39;s value array given by unsigned coordinates (i...
Definition: Dense.h:112
size_t xStride() const
Return the stride of the array in the x direction ( = dimY*dimZ).
Definition: Dense.h:128
FormattedInt< IntT > formattedInt(IntT n)
Definition: Formats.h:130
TreeT::LeafNodeType LeafT
Definition: Dense.h:472
CopyFromDense(const DenseT &dense, TreeT &tree, const ValueT &tolerance)
Definition: Dense.h:475
Dense is a simple dense grid API used by the CopyToDense and CopyFromDense classes defined below...
Definition: Dense.h:206
Defined various multi-threaded utility functions for trees.
void copyFromDense(const DenseT &dense, GridOrTreeT &sparse, const typename GridOrTreeT::ValueType &tolerance, bool serial=false)
Populate a sparse grid with the values of all of the voxels of a dense grid.
Definition: Dense.h:590
Dense(const CoordBBox &bbox, const ValueT &value)
Construct a dense grid with a given range of coordinates and initial value.
Definition: Dense.h:227
const CoordBBox mBBox
Definition: Dense.h:189
uint64_t Index64
Definition: Types.h:57
boost::shared_ptr< const Dense > ConstPtr
Definition: Dense.h:212
ValueT & getValue(size_t offset)
Return a non-const reference to the value of the voxel at the given array offset. ...
Definition: Dense.h:290
static size_t xStride()
Return the stride of the array in the x direction ( = 1).
Definition: Dense.h:175
#define OPENVDB_VERSION_NAME
Definition: version.h:43
const ValueT & getValue(size_t i, size_t j, size_t k) const
Return a const reference to the value of the voxel at unsigned index coordinates (i, j, k).
Definition: Dense.h:301
boost::shared_ptr< Dense > Ptr
Definition: Dense.h:211
Coord offsetToLocalCoord(size_t n) const
Return the local coordinate corresponding to the specified linear offset.
Definition: Dense.h:118
static MemoryLayout memoryLayout()
Return the memory layout for this grid (see above for definitions).
Definition: Dense.h:263
void setValue(size_t i, size_t j, size_t k, const ValueT &value)
Set the value of the voxel at unsigned index coordinates (i, j, k).
Definition: Dense.h:294
_TreeT TreeT
Definition: Dense.h:413
This adapter allows code that is templated on a Tree type to accept either a Tree type or a Grid type...
Definition: Grid.h:898
Index64 memUsage() const
Return the memory footprint of this Dense grid in bytes.
Definition: Dense.h:363
_TreeT TreeT
Definition: Dense.h:470
Definition: Exceptions.h:39
void addTile(Index level, const Coord &xyz, const ValueType &value, bool state)
Add a tile at the specified tree level that contains voxel (x, y, z), possibly deleting existing node...
Definition: ValueAccessor.h:382
const CoordBBox mBBox
Definition: Dense.h:142
CopyToDense(const TreeT &tree, DenseT &dense)
Definition: Dense.h:416
ValueT & getValue(size_t i, size_t j, size_t k)
Return a non-const reference to the value of the voxel at unsigned index coordinates (i...
Definition: Dense.h:308
static size_t zStride()
Return the stride of the array in the z direction ( = 1).
Definition: Dense.h:136
_DenseT DenseT
Definition: Dense.h:469
Dense(const CoordBBox &bbox, ValueT *data)
Construct a dense grid that wraps an external array.
Definition: Dense.h:242
ValueT ValueType
Definition: Dense.h:209
void copy(bool serial=false) const
Definition: Dense.h:419
void setValue(size_t offset, const ValueT &value)
Set the value of the voxel at the given array offset.
Definition: Dense.h:284
MemoryLayout
Definition: Dense.h:92
const ValueT * data() const
Return a raw pointer to this grid&#39;s value array.
Definition: Dense.h:271
void pruneTiles(TreeT &tree, typename TreeT::ValueType tolerance=zeroVal< typename TreeT::ValueType >(), bool threaded=true, size_t grainSize=1)
Reduce the memory footprint of a tree by replacing with tiles any non-leaf nodes whose values are all...
Definition: Prune.h:384
Index64 valueCount() const
Return the number of voxels contained in this grid.
Definition: Dense.h:281
void print(const std::string &name="", std::ostream &os=std::cout) const
Output a human-readable description of this grid to the specified stream.
Definition: Dense.h:370
tree::ValueAccessor< TreeT > AccessorT
Definition: Dense.h:473
Definition: Exceptions.h:88
DenseBase< ValueT, Layout > BaseT
Definition: Dense.h:210
Copy the values from a dense grid into an OpenVDB tree.
Definition: Dense.h:466
void setValue(const Coord &xyz, const ValueT &value)
Set the value of the voxel at the given signed coordinates.
Definition: Dense.h:315
#define OPENVDB_USE_VERSION_NAMESPACE
Definition: version.h:71
size_t coordToOffset(const Coord &xyz) const
Return the linear offset into this grid&#39;s value array given by the specified signed coordinates...
Definition: Dense.h:348
Dense(const CoordBBox &bbox)
Construct a dense grid with a given range of coordinates.
Definition: Dense.h:219
void fill(const ValueT &value)
Fill this grid with a constant value.
Definition: Dense.h:335
CopyFromDense(const CopyFromDense &other)
Definition: Dense.h:483
size_t yStride() const
Return the stride of the array in the y direction ( = dimX).
Definition: Dense.h:179
DenseBase(const CoordBBox &bbox)
Protected constructor so as to prevent direct instantiation.
Definition: Dense.h:140
DenseBase(const CoordBBox &bbox)
Protected constructor so as to prevent direct instantiation.
Definition: Dense.h:187
ValueT & getValue(const Coord &xyz)
Return a non-const reference to the value of the voxel at the given signed coordinates.
Definition: Dense.h:329
OPENVDB_API int printBytes(std::ostream &os, uint64_t bytes, const std::string &head="", const std::string &tail="\n", bool exact=false, int width=8, int precision=3)
Dense(const Coord &dim, const Coord &min=Coord(0))
Construct a dense grid with a given origin and dimensions.
Definition: Dense.h:256
Base class for Dense which is defined below.
Definition: Dense.h:97
_DenseT DenseT
Definition: Dense.h:412
void operator()(const CoordBBox &bbox) const
Public method called by tbb::parallel_for.
Definition: Dense.h:429
ValueT * data()
Return a raw pointer to this grid&#39;s value array.
Definition: Dense.h:267
const boost::disable_if_c< VecTraits< T >::IsVec, T >::type & min(const T &a, const T &b)
Definition: Composite.h:128