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AttributeSet.h
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1 // Copyright Contributors to the OpenVDB Project
2 // SPDX-License-Identifier: MPL-2.0
3 
4 /// @file points/AttributeSet.h
5 ///
6 /// @authors Dan Bailey, Mihai Alden
7 ///
8 /// @brief Set of Attribute Arrays which tracks metadata about each array.
9 
10 #ifndef OPENVDB_POINTS_ATTRIBUTE_SET_HAS_BEEN_INCLUDED
11 #define OPENVDB_POINTS_ATTRIBUTE_SET_HAS_BEEN_INCLUDED
12 
13 #include "AttributeArray.h"
14 #include <openvdb/version.h>
15 #include <openvdb/MetaMap.h>
16 
17 #include <limits>
18 #include <memory>
19 #include <vector>
20 
21 
22 class TestAttributeSet;
23 
24 
25 namespace openvdb {
27 namespace OPENVDB_VERSION_NAME {
28 namespace points {
29 
30 
31 using GroupType = uint8_t;
32 
33 
34 ////////////////////////////////////////
35 
36 
37 /// Ordered collection of uniquely-named attribute arrays
39 {
40 public:
41  enum { INVALID_POS = std::numeric_limits<size_t>::max() };
42 
43  using Ptr = std::shared_ptr<AttributeSet>;
44  using ConstPtr = std::shared_ptr<const AttributeSet>;
45  using UniquePtr = std::unique_ptr<AttributeSet>;
46 
47  class Descriptor;
48 
49  using DescriptorPtr = std::shared_ptr<Descriptor>;
50  using DescriptorConstPtr = std::shared_ptr<const Descriptor>;
51 
52  //////////
53 
54  struct Util
55  {
56  /// Attribute and type name pair.
57  struct NameAndType {
58  NameAndType(const std::string& n, const NamePair& t, const Index s = 1)
59  : name(n), type(t), stride(s) {}
63  };
64 
65  using NameAndTypeVec = std::vector<NameAndType>;
66  using NameToPosMap = std::map<std::string, size_t>;
67  using GroupIndex = std::pair<size_t, uint8_t>;
68  };
69 
70  //////////
71 
72  AttributeSet();
73 
74  /// Construct a new AttributeSet from the given AttributeSet.
75  /// @param attributeSet the old attribute set
76  /// @param arrayLength the desired length of the arrays in the new AttributeSet
77  /// @param lock an optional scoped registry lock to avoid contention
78  /// @note This constructor is typically used to resize an existing AttributeSet as
79  /// it transfers attribute metadata such as hidden and transient flags
80  AttributeSet(const AttributeSet& attributeSet, Index arrayLength,
81  const AttributeArray::ScopedRegistryLock* lock = nullptr);
82 
83  /// Construct a new AttributeSet from the given Descriptor.
84  /// @param descriptor stored in the new AttributeSet and used in construction
85  /// @param arrayLength the desired length of the arrays in the new AttributeSet
86  /// @param lock an optional scoped registry lock to avoid contention
87  /// @note Descriptors do not store attribute metadata such as hidden and transient flags
88  /// which live on the AttributeArrays, so for constructing from an existing AttributeSet
89  /// use the AttributeSet(const AttributeSet&, Index) constructor instead
90  AttributeSet(const DescriptorPtr& descriptor, Index arrayLength = 1,
91  const AttributeArray::ScopedRegistryLock* lock = nullptr);
92 
93  /// Shallow copy constructor, the descriptor and attribute arrays will be shared.
94  AttributeSet(const AttributeSet&);
95 
96  /// Disallow copy assignment, since it wouldn't be obvious whether the copy is deep or shallow.
97  AttributeSet& operator=(const AttributeSet&) = delete;
98 
99  //@{
100  /// @brief Return a reference to this attribute set's descriptor, which might
101  /// be shared with other sets.
102  Descriptor& descriptor() { return *mDescr; }
103  const Descriptor& descriptor() const { return *mDescr; }
104  //@}
105 
106  /// @brief Return a pointer to this attribute set's descriptor, which might be
107  /// shared with other sets
108  DescriptorPtr descriptorPtr() const { return mDescr; }
109 
110  /// Return the number of attributes in this set.
111  size_t size() const { return mAttrs.size(); }
112 
113  /// Return the number of bytes of memory used by this attribute set.
114  size_t memUsage() const;
115 
116 #if OPENVDB_ABI_VERSION_NUMBER >= 10
117  /// Return the number of bytes of memory used by this attribute set once it
118  /// has been deserialized (this may be different to memUsage() if delay-loading
119  /// is in use).
120  size_t memUsageIfLoaded() const;
121 #endif
122 
123  /// @brief Return the position of the attribute array whose name is @a name,
124  /// or @c INVALID_POS if no match is found.
125  size_t find(const std::string& name) const;
126 
127  /// @brief Replace the attribute array whose name is @a name.
128  /// @return The position of the updated attribute array or @c INVALID_POS
129  /// if the given name does not exist or if the replacement failed because
130  /// the new array type does not comply with the descriptor.
131  size_t replace(const std::string& name, const AttributeArray::Ptr&);
132 
133  /// @brief Replace the attribute array stored at position @a pos in this container.
134  /// @return The position of the updated attribute array or @c INVALID_POS
135  /// if replacement failed because the new array type does not comply with
136  /// the descriptor.
137  size_t replace(size_t pos, const AttributeArray::Ptr&);
138 
139  //@{
140  /// @brief Return a pointer to the attribute array whose name is @a name or
141  /// a null pointer if no match is found.
142  const AttributeArray* getConst(const std::string& name) const;
143  const AttributeArray* get(const std::string& name) const;
144  AttributeArray* get(const std::string& name);
145  //@}
146 
147  //@{
148  /// @brief Return a pointer to the attribute array stored at position @a pos
149  /// in this set.
150  const AttributeArray* getConst(size_t pos) const;
151  const AttributeArray* get(size_t pos) const;
152  AttributeArray* get(size_t pos);
153  //@}
154 
155  //@{
156  /// @brief Return the group offset from the name or index of the group
157  /// A group attribute array is a single byte (8-bit), each bit of which
158  /// can denote a group. The group offset is the position of the bit that
159  /// denotes the requested group if all group attribute arrays in the set
160  /// (and only attribute arrays marked as group) were to be laid out linearly
161  /// according to their order in the set.
162  size_t groupOffset(const Name& groupName) const;
163  size_t groupOffset(const Util::GroupIndex& index) const;
164  //@}
165 
166  /// Return the group index from the name of the group
167  Util::GroupIndex groupIndex(const Name& groupName) const;
168  /// Return the group index from the offset of the group
169  /// @note see offset description for groupOffset()
170  Util::GroupIndex groupIndex(const size_t offset) const;
171 
172  /// Return the indices of the attribute arrays which are group attribute arrays
173  std::vector<size_t> groupAttributeIndices() const;
174 
175  /// Return true if the attribute array stored at position @a pos is shared.
176  bool isShared(size_t pos) const;
177  /// @brief If the attribute array stored at position @a pos is shared,
178  /// replace the array with a deep copy of itself that is not
179  /// shared with anyone else.
180  void makeUnique(size_t pos);
181 
182  /// Append attribute @a attribute (simple method)
184  const NamePair& type,
185  const Index strideOrTotalSize = 1,
186  const bool constantStride = true,
187  const Metadata* defaultValue = nullptr);
188 
189  /// Append attribute @a attribute (descriptor-sharing)
190  /// Requires current descriptor to match @a expected
191  /// On append, current descriptor is replaced with @a replacement
192  /// Provide a @a lock object to avoid contention from appending in parallel
193  AttributeArray::Ptr appendAttribute(const Descriptor& expected, DescriptorPtr& replacement,
194  const size_t pos, const Index strideOrTotalSize = 1,
195  const bool constantStride = true,
196  const Metadata* defaultValue = nullptr,
197  const AttributeArray::ScopedRegistryLock* lock = nullptr);
198 
199  /// @brief Remove and return an attribute array by name
200  /// @param name the name of the attribute array to release
201  /// @details Detaches the attribute array from this attribute set and returns it, if
202  /// @a name is invalid, returns an empty shared pointer. This also updates the descriptor
203  /// to remove the reference to the attribute array.
204  /// @note AttributeArrays are stored as shared pointers, so they are not guaranteed
205  /// to be unique. Check the reference count before blindly re-using in a new AttributeSet.
206  AttributeArray::Ptr removeAttribute(const Name& name);
207 
208  /// @brief Remove and return an attribute array by index
209  /// @param pos the position index of the attribute to release
210  /// @details Detaches the attribute array from this attribute set and returns it, if
211  /// @a pos is invalid, returns an empty shared pointer. This also updates the descriptor
212  /// to remove the reference to the attribute array.
213  /// @note AttributeArrays are stored as shared pointers, so they are not guaranteed
214  /// to be unique. Check the reference count before blindly re-using in a new AttributeSet.
215  AttributeArray::Ptr removeAttribute(const size_t pos);
216 
217  /// @brief Remove and return an attribute array by index (unsafe method)
218  /// @param pos the position index of the attribute to release
219  /// @details Detaches the attribute array from this attribute set and returns it, if
220  /// @a pos is invalid, returns an empty shared pointer.
221  /// In cases where the AttributeSet is due to be destroyed, a small performance
222  /// advantage can be gained by leaving the attribute array as a nullptr and not
223  /// updating the descriptor. However, this leaves the AttributeSet in an invalid
224  /// state making it unsafe to call any methods that implicitly derefence the attribute array.
225  /// @note AttributeArrays are stored as shared pointers, so they are not guaranteed
226  /// to be unique. Check the reference count before blindly re-using in a new AttributeSet.
227  /// @warning Only use this method if you're an expert and know the risks of not
228  /// updating the array of attributes or the descriptor.
229  AttributeArray::Ptr removeAttributeUnsafe(const size_t pos);
230 
231  /// Drop attributes with @a pos indices (simple method)
232  /// Creates a new descriptor for this attribute set
233  void dropAttributes(const std::vector<size_t>& pos);
234 
235  /// Drop attributes with @a pos indices (descriptor-sharing method)
236  /// Requires current descriptor to match @a expected
237  /// On drop, current descriptor is replaced with @a replacement
238  void dropAttributes(const std::vector<size_t>& pos,
239  const Descriptor& expected, DescriptorPtr& replacement);
240 
241  /// Re-name attributes in set to match a provided descriptor
242  /// Replaces own descriptor with @a replacement
243  void renameAttributes(const Descriptor& expected, const DescriptorPtr& replacement);
244 
245  /// Re order attribute set to match a provided descriptor
246  /// Replaces own descriptor with @a replacement
247  void reorderAttributes(const DescriptorPtr& replacement);
248 
249  /// Replace the current descriptor with a @a replacement
250  /// Note the provided Descriptor must be identical to the replacement
251  /// unless @a allowMismatchingDescriptors is true (default is false)
252  void resetDescriptor(const DescriptorPtr& replacement, const bool allowMismatchingDescriptors = false);
253 
254  /// Read the entire set from a stream.
255  void read(std::istream&);
256  /// Write the entire set to a stream.
257  /// @param outputTransient if true, write out transient attributes
258  void write(std::ostream&, bool outputTransient = false) const;
259 
260  /// This will read the attribute descriptor from a stream.
261  void readDescriptor(std::istream&);
262  /// This will write the attribute descriptor to a stream.
263  /// @param outputTransient if true, write out transient attributes
264  void writeDescriptor(std::ostream&, bool outputTransient = false) const;
265 
266  /// This will read the attribute metadata from a stream.
267  void readMetadata(std::istream&);
268  /// This will write the attribute metadata to a stream.
269  /// @param outputTransient if true, write out transient attributes
270  /// @param paged if true, data is written out in pages
271  void writeMetadata(std::ostream&, bool outputTransient = false, bool paged = false) const;
272 
273  /// This will read the attribute data from a stream.
274  void readAttributes(std::istream&);
275  /// This will write the attribute data to a stream.
276  /// @param outputTransient if true, write out transient attributes
277  void writeAttributes(std::ostream&, bool outputTransient = false) const;
278 
279  /// Compare the descriptors and attribute arrays on the attribute sets
280  /// Exit early if the descriptors do not match
281  bool operator==(const AttributeSet& other) const;
282  bool operator!=(const AttributeSet& other) const { return !this->operator==(other); }
283 
284 private:
285  using AttrArrayVec = std::vector<AttributeArray::Ptr>;
286 
287  DescriptorPtr mDescr;
288  AttrArrayVec mAttrs;
289 }; // class AttributeSet
290 
291 ////////////////////////////////////////
292 
293 
294 /// A container for ABI=5 to help ease introduction of upcoming features
295 namespace future {
296  class Container
297  {
298  class Element { };
299  std::vector<std::shared_ptr<Element>> mElements;
300  };
301 }
302 
303 
304 ////////////////////////////////////////
305 
306 
307 /// @brief An immutable object that stores name, type and AttributeSet position
308 /// for a constant collection of attribute arrays.
309 /// @note The attribute name is actually mutable, but the attribute type
310 /// and position can not be changed after creation.
311 class OPENVDB_API AttributeSet::Descriptor
312 {
313 public:
314  using Ptr = std::shared_ptr<Descriptor>;
315 
320  using ConstIterator = NameToPosMap::const_iterator;
321 
322  /// Utility method to construct a NameAndType sequence.
323  struct Inserter {
325  Inserter& add(const NameAndType& nameAndType) {
326  vec.push_back(nameAndType); return *this;
327  }
328  Inserter& add(const Name& name, const NamePair& type) {
329  vec.emplace_back(name, type); return *this;
330  }
331  Inserter& add(const NameAndTypeVec& other) {
332  for (NameAndTypeVec::const_iterator it = other.begin(), itEnd = other.end(); it != itEnd; ++it) {
333  vec.emplace_back(it->name, it->type);
334  }
335  return *this;
336  }
337  };
338 
339  //////////
340 
341  Descriptor();
342 
343  /// Copy constructor
344  Descriptor(const Descriptor&);
345 
346  /// Create a new descriptor from a position attribute type and assumes "P" (for convenience).
347  static Ptr create(const NamePair&);
348 
349  /// Create a new descriptor as a duplicate with a new attribute appended
350  Ptr duplicateAppend(const Name& name, const NamePair& type) const;
351 
352  /// Create a new descriptor as a duplicate with existing attributes dropped
353  Ptr duplicateDrop(const std::vector<size_t>& pos) const;
354 
355  /// Return the number of attributes in this descriptor.
356  size_t size() const { return mTypes.size(); }
357 
358  /// Return the number of attributes with this attribute type
359  size_t count(const NamePair& type) const;
360 
361  /// Return the number of bytes of memory used by this attribute set.
362  size_t memUsage() const;
363 
364  /// @brief Return the position of the attribute array whose name is @a name,
365  /// or @c INVALID_POS if no match is found.
366  size_t find(const std::string& name) const;
367 
368  /// Rename an attribute array
369  size_t rename(const std::string& fromName, const std::string& toName);
370 
371  /// Return the name of the attribute array's type.
372  const Name& valueType(size_t pos) const;
373  /// Return the name of the attribute array's type.
374  const NamePair& type(size_t pos) const;
375 
376  /// Retrieve metadata map
377  MetaMap& getMetadata();
378  const MetaMap& getMetadata() const;
379 
380  /// Return true if the attribute has a default value
381  bool hasDefaultValue(const Name& name) const;
382  /// Get a default value for an existing attribute
383  template<typename ValueType>
384  ValueType getDefaultValue(const Name& name) const
385  {
386  const size_t pos = find(name);
387  if (pos == INVALID_POS) {
388  OPENVDB_THROW(LookupError, "Cannot find attribute name to set default value.")
389  }
390 
391  std::stringstream ss;
392  ss << "default:" << name;
393 
394  auto metadata = mMetadata.getMetadata<TypedMetadata<ValueType>>(ss.str());
395 
396  if (metadata) return metadata->value();
397 
398  return zeroVal<ValueType>();
399  }
400  /// Set a default value for an existing attribute
401  void setDefaultValue(const Name& name, const Metadata& defaultValue);
402  // Remove the default value if it exists
403  void removeDefaultValue(const Name& name);
404  // Prune any default values for which the key is no longer present
405  void pruneUnusedDefaultValues();
406 
407  /// Return true if this descriptor is equal to the given one.
408  bool operator==(const Descriptor&) const;
409  /// Return true if this descriptor is not equal to the given one.
410  bool operator!=(const Descriptor& rhs) const { return !this->operator==(rhs); }
411  /// Return true if this descriptor contains the same attributes
412  /// as the given descriptor, ignoring attribute order
413  bool hasSameAttributes(const Descriptor& rhs) const;
414 
415  /// Return a reference to the name-to-position map.
416  const NameToPosMap& map() const { return mNameMap; }
417  /// Return a reference to the name-to-position group map.
418  const NameToPosMap& groupMap() const { return mGroupMap; }
419 
420  /// Return @c true if group exists
421  bool hasGroup(const Name& group) const;
422  /// @brief Define a group name to offset mapping
423  /// @param group group name
424  /// @param offset group offset
425  /// @param checkValidOffset throws if offset out-of-range or in-use
426  void setGroup(const Name& group, const size_t offset,
427  const bool checkValidOffset = false);
428  /// Drop any mapping keyed by group name
429  void dropGroup(const Name& group);
430  /// Clear all groups
431  void clearGroups();
432  /// Rename a group
433  size_t renameGroup(const std::string& fromName, const std::string& toName);
434  /// Return a unique name for a group based on given name
435  const Name uniqueGroupName(const Name& name) const;
436 
437  //@{
438  /// @brief Return the group offset from the name or index of the group
439  /// A group attribute array is a single byte (8-bit), each bit of which
440  /// can denote a group. The group offset is the position of the bit that
441  /// denotes the requested group if all group attribute arrays in the set
442  /// (and only attribute arrays marked as group) were to be laid out linearly
443  /// according to their order in the set.
444  size_t groupOffset(const Name& groupName) const;
445  size_t groupOffset(const GroupIndex& index) const;
446  //@}
447 
448  /// Return the group index from the name of the group
449  GroupIndex groupIndex(const Name& groupName) const;
450  /// Return the group index from the offset of the group
451  /// @note see offset description for groupOffset()
452  GroupIndex groupIndex(const size_t offset) const;
453 
454  /// Return number of bits occupied by a group attribute array
455  static size_t groupBits() { return sizeof(GroupType) * CHAR_BIT; }
456 
457  /// Return the total number of available groups
458  /// (group bits * number of group attributes)
459  size_t availableGroups() const;
460 
461  /// Return the number of empty group slots which correlates to the number of groups
462  /// that can be stored without increasing the number of group attribute arrays
463  size_t unusedGroups() const;
464 
465  /// Return @c true if there are sufficient empty slots to allow compacting
466  bool canCompactGroups() const;
467 
468  /// @brief Return a group offset that is not in use
469  /// @param hint if provided, request a specific offset as a hint
470  /// @return index of an offset or size_t max if no available group offsets
471  size_t unusedGroupOffset(size_t hint = std::numeric_limits<size_t>::max()) const;
472 
473  /// @brief Determine if a move is required to efficiently compact the data and store the
474  /// source name, offset and the target offset in the input parameters
475  /// @param sourceName source name
476  /// @param sourceOffset source offset
477  /// @param targetOffset target offset
478  /// @return @c true if move is required to compact the data
479  bool requiresGroupMove(Name& sourceName, size_t& sourceOffset, size_t& targetOffset) const;
480 
481  /// @brief Test if there are any group names shared by both descriptors which
482  /// have a different index
483  /// @param rhs the descriptor to compare with
484  /// @return @c true if an index collision exists
485  bool groupIndexCollision(const Descriptor& rhs) const;
486 
487  /// Return a unique name for an attribute array based on given name
488  const Name uniqueName(const Name& name) const;
489 
490  /// Return true if the name is valid
491  static bool validName(const Name& name);
492 
493  /// @brief Extract each name from @a nameStr into @a includeNames, or into @a excludeNames
494  /// if the name is prefixed with a caret.
495  /// @param nameStr the input string of names
496  /// @param includeNames on exit, the list of names that are not prefixed with a caret
497  /// @param excludeNames on exit, the list of names that are prefixed with a caret
498  /// @param includeAll on exit, @c true if a "*" wildcard is present in the @a includeNames
499  static void parseNames( std::vector<std::string>& includeNames,
500  std::vector<std::string>& excludeNames,
501  bool& includeAll,
502  const std::string& nameStr);
503 
504  /// @brief Extract each name from @a nameStr into @a includeNames, or into @a excludeNames
505  /// if the name is prefixed with a caret.
506  static void parseNames( std::vector<std::string>& includeNames,
507  std::vector<std::string>& excludeNames,
508  const std::string& nameStr);
509 
510  /// Serialize this descriptor to the given stream.
511  void write(std::ostream&) const;
512  /// Unserialize this transform from the given stream.
513  void read(std::istream&);
514 
515 protected:
516  /// Append to a vector of names and types from this Descriptor in position order
517  void appendTo(NameAndTypeVec& attrs) const;
518 
519  /// Create a new descriptor from the given attribute and type name pairs
520  /// and copy the group maps and metamap.
521  static Ptr create(const NameAndTypeVec&, const NameToPosMap&, const MetaMap&);
522 
523  size_t insert(const std::string& name, const NamePair& typeName);
524 
525 private:
526  friend class ::TestAttributeSet;
527 
528  NameToPosMap mNameMap;
529  std::vector<NamePair> mTypes;
530  NameToPosMap mGroupMap;
531  MetaMap mMetadata;
532  // as this change is part of an ABI change, there's no good reason to reduce the reserved
533  // space aside from keeping the memory size of an AttributeSet the same for convenience
534  // (note that this assumes a typical three-pointer implementation for std::vector)
535  future::Container mFutureContainer; // occupies 3 reserved slots
536  int64_t mReserved[5]; // for future use
537 }; // class Descriptor
538 
539 } // namespace points
540 } // namespace OPENVDB_VERSION_NAME
541 } // namespace openvdb
542 
543 #endif // OPENVDB_POINTS_ATTRIBUTE_ARRAY_HAS_BEEN_INCLUDED
Definition: ImfName.h:30
ValueType getDefaultValue(const Name &name) const
Get a default value for an existing attribute.
Definition: AttributeSet.h:384
Descriptor & descriptor()
Return a reference to this attribute set's descriptor, which might be shared with other sets...
Definition: AttributeSet.h:102
const Descriptor & descriptor() const
Return a reference to this attribute set's descriptor, which might be shared with other sets...
Definition: AttributeSet.h:103
bool operator!=(const Descriptor &rhs) const
Return true if this descriptor is not equal to the given one.
Definition: AttributeSet.h:410
T & value()
Return this metadata's value.
Definition: Metadata.h:249
Index64 memUsage(const TreeT &tree, bool threaded=true)
Return the total amount of memory in bytes occupied by this tree.
Definition: Count.h:493
#define OPENVDB_USE_VERSION_NAMESPACE
Definition: version.h:207
std::shared_ptr< const AttributeSet > ConstPtr
Definition: AttributeSet.h:44
GLuint const GLchar * name
Definition: glcorearb.h:786
bool operator!=(const AttributeSet &other) const
Definition: AttributeSet.h:282
OIIO_FORCEINLINE vbool4 insert(const vbool4 &a, bool val)
Helper: substitute val for a[i].
Definition: simd.h:3436
void read(T &in, bool &v)
Definition: ImfXdr.h:502
GLdouble GLdouble t
Definition: glew.h:1403
Container that maps names (strings) to values of arbitrary types.
Definition: MetaMap.h:19
Utility method to construct a NameAndType sequence.
Definition: AttributeSet.h:323
void renameAttributes(PointDataTreeT &tree, const std::vector< Name > &oldNames, const std::vector< Name > &newNames)
Rename attributes in a VDB tree.
void dropGroup(PointDataTreeT &tree, const Name &group, const bool compact=true)
Drops an existing group from the VDB tree.
Definition: PointGroup.h:406
bool operator==(const BaseDimensions< T > &a, const BaseDimensions< Y > &b)
Definition: Dimensions.h:137
void appendAttribute(PointDataTreeT &tree, const Name &name, const NamePair &type, const Index strideOrTotalSize=1, const bool constantStride=true, const Metadata *defaultValue=nullptr, const bool hidden=false, const bool transient=false)
Appends a new attribute to the VDB tree (this method does not require a templated AttributeType) ...
Base class for storing attribute data.
#define OPENVDB_API
Definition: Platform.h:249
Templated metadata class to hold specific types.
Definition: Metadata.h:121
std::string OIIO_UTIL_API replace(string_view str, string_view pattern, string_view replacement, bool global=false)
GLsizei const GLchar *const * string
Definition: glcorearb.h:814
std::shared_ptr< const Descriptor > DescriptorConstPtr
Definition: AttributeSet.h:50
Index64 memUsageIfLoaded(const TreeT &tree, bool threaded=true)
Return the deserialized memory usage of this tree. This is not necessarily equal to the current memor...
Definition: Count.h:502
void dropAttributes(PointDataTreeT &tree, const std::vector< size_t > &indices)
Drops attributes from the VDB tree.
const NameToPosMap & groupMap() const
Return a reference to the name-to-position group map.
Definition: AttributeSet.h:418
GLint GLsizei count
Definition: glcorearb.h:405
NameAndType(const std::string &n, const NamePair &t, const Index s=1)
Definition: AttributeSet.h:58
std::pair< Name, Name > NamePair
Inserter & add(const NameAndType &nameAndType)
Definition: AttributeSet.h:325
Element(ElementPtr parent, const string &category, const string &name)
Definition: Element.h:76
GLuint GLdouble GLdouble GLint GLint const GLdouble * points
Definition: glew.h:3460
void setGroup(PointDataTreeT &tree, const PointIndexTreeT &indexTree, const std::vector< short > &membership, const Name &group, const bool remove=false)
Sets group membership from a PointIndexTree-ordered vector.
Definition: PointGroup.h:548
GLdouble n
Definition: glcorearb.h:2008
std::unique_ptr< AttributeSet > UniquePtr
Definition: AttributeSet.h:45
Library and file format version numbers.
OIIO_UTIL_API bool rename(string_view from, string_view to, std::string &err)
GLuint index
Definition: glcorearb.h:786
Base class for storing metadata information in a grid.
Definition: Metadata.h:23
ImageBuf OIIO_API max(Image_or_Const A, Image_or_Const B, ROI roi={}, int nthreads=0)
size_t size() const
Return the number of attributes in this set.
Definition: AttributeSet.h:111
Ordered collection of uniquely-named attribute arrays.
Definition: AttributeSet.h:38
GLboolean GLuint group
Definition: glew.h:2750
GLintptr offset
Definition: glcorearb.h:665
Inserter & add(const Name &name, const NamePair &type)
Definition: AttributeSet.h:328
GLint GLenum GLboolean GLsizei stride
Definition: glcorearb.h:872
static size_t groupBits()
Return number of bits occupied by a group attribute array.
Definition: AttributeSet.h:455
type
Definition: core.h:1059
Attribute Array storage templated on type and compression codec.
void write(T &out, bool v)
Definition: ImfXdr.h:287
GLdouble s
Definition: glew.h:1395
#define OPENVDB_VERSION_NAME
The version namespace name for this library version.
Definition: version.h:119
DescriptorPtr descriptorPtr() const
Return a pointer to this attribute set's descriptor, which might be shared with other sets...
Definition: AttributeSet.h:108
#define OPENVDB_THROW(exception, message)
Definition: Exceptions.h:74
FMT_CONSTEXPR auto find(Ptr first, Ptr last, T value, Ptr &out) -> bool
Definition: core.h:2089
const NameToPosMap & map() const
Return a reference to the name-to-position map.
Definition: AttributeSet.h:416