4 #ifndef OPENVDB_TREE_LEAFBUFFER_HAS_BEEN_INCLUDED
5 #define OPENVDB_TREE_LEAFBUFFER_HAS_BEEN_INCLUDED
10 #include <tbb/spin_mutex.h>
16 #include <type_traits>
29 template<
typename T, Index Log2Dim>
36 static const Index SIZE = 1 << 3 * Log2Dim;
38 #ifdef OPENVDB_USE_DELAYED_LOADING
41 FileInfo(): bufpos(0) , maskpos(0) {}
42 std::streamoff bufpos;
43 std::streamoff maskpos;
44 io::MappedFile::Ptr mapping;
52 #ifdef OPENVDB_USE_DELAYED_LOADING
63 #ifdef OPENVDB_USE_DELAYED_LOADING
73 #ifdef OPENVDB_USE_DELAYED_LOADING
74 return bool(mOutOfCore);
80 bool empty()
const {
return !mData || this->isOutOfCore(); }
135 inline void setOutOfCore(
bool b)
138 #ifdef OPENVDB_USE_DELAYED_LOADING
144 inline void loadValues()
const
146 #ifdef OPENVDB_USE_DELAYED_LOADING
147 if (this->isOutOfCore()) this->doLoad();
150 inline void doLoad()
const;
151 inline bool detachFromFile();
153 using FlagsType = std::atomic<Index32>;
155 #ifdef OPENVDB_USE_DELAYED_LOADING
163 FlagsType mOutOfCore;
164 tbb::spin_mutex mMutex;
167 static const ValueType sZero;
169 friend class ::TestLeaf;
178 template<
typename T, Index Log2Dim>
182 template<
typename T, Index Log2Dim>
187 #ifdef OPENVDB_USE_DELAYED_LOADING
194 template<
typename T, Index Log2Dim>
198 #ifdef OPENVDB_USE_DELAYED_LOADING
199 if (this->isOutOfCore()) {
200 this->detachFromFile();
210 template<
typename T, Index Log2Dim>
215 , mOutOfCore(other.mOutOfCore.load())
218 #ifdef OPENVDB_USE_DELAYED_LOADING
220 mFileInfo =
new FileInfo(*other.mFileInfo);
223 if (other.mData !=
nullptr) {
228 while (n--) *target++ = *source++;
230 #ifdef OPENVDB_USE_DELAYED_LOADING
236 template<
typename T, Index Log2Dim>
242 if (mData) mData[i] = val;
246 template<
typename T, Index Log2Dim>
250 if (&other !=
this) {
251 #ifdef OPENVDB_USE_DELAYED_LOADING
252 if (this->isOutOfCore()) {
253 this->detachFromFile();
258 mOutOfCore.store(other.mOutOfCore.load(std::memory_order_acquire),
259 std::memory_order_release);
260 mFileInfo =
new FileInfo(*other.mFileInfo);
263 if (other.mData !=
nullptr) {
268 while (n--) *target++ = *source++;
270 #ifdef OPENVDB_USE_DELAYED_LOADING
278 template<
typename T, Index Log2Dim>
282 this->detachFromFile();
283 if (mData !=
nullptr) {
286 while (n--) *target++ = val;
291 template<
typename T, Index Log2Dim>
297 const ValueType *target = mData, *source = other.mData;
298 if (!target && !source)
return true;
299 if (!target || !source)
return false;
306 template<
typename T, Index Log2Dim>
310 std::swap(mData, other.mData);
311 #ifdef OPENVDB_USE_DELAYED_LOADING
316 auto tmp = other.mOutOfCore.load(std::memory_order_acquire);
317 tmp = mOutOfCore.exchange(std::move(tmp));
318 other.mOutOfCore.store(std::move(tmp), std::memory_order_release);
323 template<
typename T, Index Log2Dim>
327 size_t n =
sizeof(*this);
328 #ifdef OPENVDB_USE_DELAYED_LOADING
329 if (this->isOutOfCore()) n +=
sizeof(FileInfo);
332 if (mData) n += SIZE *
sizeof(
ValueType);
333 #ifdef OPENVDB_USE_DELAYED_LOADING
336 return static_cast<Index>(n);
340 template<
typename T, Index Log2Dim>
344 size_t n =
sizeof(*this);
346 return static_cast<Index>(n);
350 template<
typename T, Index Log2Dim>
355 if (mData ==
nullptr) {
357 #ifdef OPENVDB_USE_DELAYED_LOADING
359 tbb::spin_mutex::scoped_lock lock(self->mMutex);
361 if (mData ==
nullptr)
self->mData =
new ValueType[SIZE];
366 template<
typename T, Index Log2Dim>
371 if (mData ==
nullptr) {
372 #ifdef OPENVDB_USE_DELAYED_LOADING
374 tbb::spin_mutex::scoped_lock lock(mMutex);
376 if (mData ==
nullptr) mData =
new ValueType[SIZE];
382 template<
typename T, Index Log2Dim>
390 if (mData)
return mData[i];
else return sZero;
394 template<
typename T, Index Log2Dim>
396 LeafBuffer<T, Log2Dim>::deallocate()
399 if (mData !=
nullptr) {
400 #ifdef OPENVDB_USE_DELAYED_LOADING
401 if (this->isOutOfCore())
return false;
411 template<
typename T, Index Log2Dim>
413 LeafBuffer<T, Log2Dim>::doLoad()
const
415 #ifdef OPENVDB_USE_DELAYED_LOADING
416 if (!this->isOutOfCore())
return;
418 LeafBuffer<T, Log2Dim>*
self =
const_cast<LeafBuffer<T, Log2Dim>*
>(
this);
422 tbb::spin_mutex::scoped_lock lock(self->mMutex);
423 if (!this->isOutOfCore())
return;
425 std::unique_ptr<FileInfo> info(self->mFileInfo);
426 assert(info.get() !=
nullptr);
427 assert(info->mapping.get() !=
nullptr);
428 assert(info->meta.get() !=
nullptr);
431 self->mData =
nullptr;
434 SharedPtr<std::streambuf> buf = info->mapping->createBuffer();
435 std::istream is(buf.get());
440 is.seekg(info->maskpos);
443 is.seekg(info->bufpos);
446 self->setOutOfCore(
false);
451 template<
typename T, Index Log2Dim>
453 LeafBuffer<T, Log2Dim>::detachFromFile()
455 #ifdef OPENVDB_USE_DELAYED_LOADING
456 if (this->isOutOfCore()) {
459 this->setOutOfCore(
false);
471 template<Index Log2Dim>
492 void fill(
bool val) { mData.set(val); }
500 if (mData.isOn(i))
return sOn;
else return sOff;
509 void swap(
LeafBuffer& other) {
if (&other !=
this) std::swap(mData, other.mData); }
Tag dispatch class that distinguishes constructors during file input.
Definition: Types.h:650
LeafBuffer(const NodeMaskType &other)
Definition: LeafBuffer.h:489
~LeafBuffer()
Definition: LeafBuffer.h:491
WordType StorageType
Definition: LeafBuffer.h:478
bool operator!=(const LeafBuffer &other) const
Definition: LeafBuffer.h:505
LeafBuffer & operator=(const LeafBuffer &b)
Definition: LeafBuffer.h:493
static const bool sOff
Definition: LeafBuffer.h:485
typename NodeMaskType::Word WordType
Definition: LeafBuffer.h:476
Index memUsage() const
Definition: LeafBuffer.h:511
WordType * data()
Return a pointer to the C-style array of words encoding the bits.
Definition: LeafBuffer.h:517
void swap(LeafBuffer &other)
Definition: LeafBuffer.h:509
const WordType * data() const
Return a const pointer to the C-style array of words encoding the bits.
Definition: LeafBuffer.h:520
bool operator==(const LeafBuffer &other) const
Definition: LeafBuffer.h:504
Index memUsageIfLoaded() const
Definition: LeafBuffer.h:512
bool ValueType
Definition: LeafBuffer.h:477
LeafBuffer(const LeafBuffer &other)
Definition: LeafBuffer.h:490
const bool & getValue(Index i) const
Definition: LeafBuffer.h:495
LeafBuffer(bool on)
Definition: LeafBuffer.h:488
void fill(bool val)
Definition: LeafBuffer.h:492
static Index size()
Definition: LeafBuffer.h:513
static const bool sOn
Definition: LeafBuffer.h:484
LeafBuffer()
Definition: LeafBuffer.h:487
const bool & operator[](Index i) const
Definition: LeafBuffer.h:502
void setValue(Index i, bool val)
Definition: LeafBuffer.h:507
Array of fixed size 23Log2Dim that stores the voxel values of a LeafNode.
Definition: LeafBuffer.h:31
LeafBuffer & operator=(const LeafBuffer &)
Copy the other buffer's values into this buffer.
Definition: LeafBuffer.h:248
~LeafBuffer()
Destructor.
Definition: LeafBuffer.h:196
LeafBuffer(PartialCreate, const ValueType &)
Construct a buffer but don't allocate memory for the full array of values.
Definition: LeafBuffer.h:61
ValueType StorageType
Definition: LeafBuffer.h:34
LeafBuffer(const ValueType &)
Construct a buffer populated with the specified value.
Definition: LeafBuffer.h:184
LeafBuffer(const LeafBuffer &)
Copy constructor.
Definition: LeafBuffer.h:212
void fill(const ValueType &)
Populate this buffer with a constant value.
Definition: LeafBuffer.h:280
bool operator!=(const LeafBuffer &other) const
Return true if the contents of the other buffer are not exactly equal to the contents of this buffer.
Definition: LeafBuffer.h:102
void swap(LeafBuffer &)
Exchange this buffer's values with the other buffer's values.
Definition: LeafBuffer.h:308
bool isOutOfCore() const
Return true if this buffer's values have not yet been read from disk.
Definition: LeafBuffer.h:71
const ValueType & operator[](Index i) const
Return a const reference to the i'th element of this buffer.
Definition: LeafBuffer.h:90
Index memUsage() const
Return the memory footprint of this buffer in bytes.
Definition: LeafBuffer.h:325
bool empty() const
Return true if memory for this buffer has not yet been allocated.
Definition: LeafBuffer.h:80
const ValueType & getValue(Index i) const
Return a const reference to the i'th element of this buffer.
Definition: LeafBuffer.h:88
Index memUsageIfLoaded() const
Definition: LeafBuffer.h:342
void setValue(Index i, const ValueType &)
Set the i'th value of this buffer to the specified value.
Definition: LeafBuffer.h:238
static Index size()
Return the number of values contained in this buffer.
Definition: LeafBuffer.h:111
const ValueType * data() const
Return a const pointer to the array of voxel values.
Definition: LeafBuffer.h:352
static const Index SIZE
Definition: LeafBuffer.h:36
ValueType * data()
Return a pointer to the array of voxel values.
Definition: LeafBuffer.h:368
bool allocate()
Allocate memory for this buffer if it has not already been allocated.
Definition: LeafBuffer.h:82
LeafBuffer()
Default constructor.
Definition: LeafBuffer.h:50
T ValueType
Definition: LeafBuffer.h:33
bool operator==(const LeafBuffer &) const
Return true if the contents of the other buffer exactly equal the contents of this buffer.
Definition: LeafBuffer.h:293
Templated block class to hold specific data types and a fixed number of values determined by Log2Dim....
Definition: LeafNode.h:38
Bit mask for the internal and leaf nodes of VDB. This is a 64-bit implementation.
Definition: NodeMasks.h:308
Index64 Word
Definition: NodeMasks.h:316
static const Index32 WORD_COUNT
Definition: NodeMasks.h:315
void readCompressedValues(std::istream &is, ValueT *destBuf, Index destCount, const MaskT &valueMask, bool fromHalf)
Definition: Compression.h:465
OPENVDB_API void setStreamMetadataPtr(std::ios_base &, SharedPtr< StreamMetadata > &, bool transfer=true)
Associate the given stream with (a shared pointer to) an object that stores metadata (file format,...
OPENVDB_API bool getHalfFloat(std::ios_base &)
Return true if floating-point values should be quantized to 16 bits when writing to the given stream ...
bool isExactlyEqual(const T0 &a, const T1 &b)
Return true if a is exactly equal to b.
Definition: Math.h:443
Index32 Index
Definition: Types.h:54
std::shared_ptr< T > SharedPtr
Definition: Types.h:114
Definition: Exceptions.h:13
static pnanovdb_uint32_t allocate(pnanovdb_uint32_t *poffset, pnanovdb_uint32_t size, pnanovdb_uint32_t alignment)
Definition: pnanovdb_validate_strides.h:20
#define OPENVDB_VERSION_NAME
The version namespace name for this library version.
Definition: version.h.in:121
#define OPENVDB_USE_VERSION_NAMESPACE
Definition: version.h.in:212
#define OPENVDB_USE_DELAYED_LOADING
Definition: version.h.in:143