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bag_vrtrackinglist.cpp
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bag_vrtrackinglist.cpp
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#include "bag_dataset.h"
#include "bag_exceptions.h"
#include "bag_private.h"
#include "bag_vrtrackinglist.h"
#include <array>
#include <H5Cpp.h>
namespace BAG {
//! The HDF5 DataSet chunk size.
constexpr hsize_t kChunkSize = 1024;
//! Constructor.
/*!
\param dataset
The BAG Dataset this variable resolution tracking list belongs to.
*/
VRTrackingList::VRTrackingList(
const Dataset& dataset)
: m_pBagDataset(dataset.shared_from_this())
{
m_pH5dataSet = openH5dataSet();
}
//! Constructor.
/*!
\param dataset
The BAG Dataset this variable resolution tracking list belongs to.
\param compressionLevel
The compression level the HDF5 DataSet will use.
*/
VRTrackingList::VRTrackingList(
const Dataset& dataset,
int compressionLevel)
: m_pBagDataset(dataset.shared_from_this())
{
m_pH5dataSet = createH5dataSet(compressionLevel);
}
//! Retrieve an iterator to the first item in the variable resolution tracking list.
/*!
\return
An iterator to the first item in the variable resolution tracking list.
*/
VRTrackingList::iterator VRTrackingList::begin() & noexcept
{
return std::begin(m_items);
}
//! Retrieve an iterator to the first item in the variable resolution tracking list.
/*!
\return
An iterator to the first item in the variable resolution tracking list.
*/
VRTrackingList::const_iterator VRTrackingList::begin() const & noexcept
{
return std::begin(m_items);
}
//! Retrieve an iterator to the first item in the variable resolution tracking list.
/*!
\return
An iterator to the first item in the variable resolution tracking list.
*/
VRTrackingList::const_iterator VRTrackingList::cbegin() const & noexcept
{
return std::cbegin(m_items);
}
//! Retrieve an iterator to one past the last item in the tracking list.
/*!
\return
An iterator to one past the last item in the tracking list.
*/
VRTrackingList::const_iterator VRTrackingList::cend() const & noexcept
{
return std::cend(m_items);
}
//! Determine if the variable resolution tracking list is empty.
/*!
\return
\e true if the variable resolution tracking list is empty.
\e false otherwise.
*/
bool VRTrackingList::empty() const noexcept
{
return m_items.empty();
}
//! Retrieve an iterator to one past the last item in the tracking list.
/*!
\return
An iterator to one past the last item in the tracking list.
*/
VRTrackingList::iterator VRTrackingList::end() & noexcept
{
return std::end(m_items);
}
//! Retrieve an iterator to one past the last item in the tracking list.
/*!
\return
An iterator to one past the last item in the tracking list.
*/
VRTrackingList::const_iterator VRTrackingList::end() const & noexcept
{
return std::end(m_items);
}
//! Retrieve the item at the specified index.
/*!
\return
The item at the specified index.
*/
VRTrackingList::reference VRTrackingList::operator[](size_t index) & noexcept
{
return m_items[index];
}
//! Retrieve the item at the specified index.
/*!
\return
The item at the specified index.
*/
VRTrackingList::const_reference VRTrackingList::operator[](
size_t index) const & noexcept
{
return m_items[index];
}
//! Retrieve the number of items in the tracking list.
/*!
\return
The number of items in the tracking list.
*/
size_t VRTrackingList::size() const noexcept
{
return m_items.size();
}
//! Empty the tracking list.
void VRTrackingList::clear() noexcept
{
m_items.clear();
}
//! Add an item to the end of the tracking list.
/*!
\param value
The item to add.
*/
void VRTrackingList::push_back(const value_type& value)
{
m_items.push_back(value);
}
//! Add an item to the end of the tracking list.
/*!
\param value
The item to add.
*/
void VRTrackingList::push_back(value_type&& value)
{
m_items.push_back(value);
}
//! Retrieve the first item in the tracking list.
/*!
\return
The first item in the tracking list.
*/
VRTrackingList::reference VRTrackingList::front() &
{
return m_items.front();
}
//! Retrieve the first item in the tracking list.
/*!
\return
The first item in the tracking list.
*/
VRTrackingList::const_reference VRTrackingList::front() const &
{
return m_items.front();
}
//! Retrieve the last item in the tracking list.
/*!
\return
The last item in the tracking list.
*/
VRTrackingList::reference VRTrackingList::back() &
{
return m_items.back();
}
//! Retrieve the last item in the tracking list.
/*!
\return
The last item in the tracking list.
*/
VRTrackingList::const_reference VRTrackingList::back() const &
{
return m_items.back();
}
//! Reserve more space in the tracking list.
/*!
Reserve more space in the tracking list. If the amount to be reserved is
less than the current capacity, do nothing.
\param newCapacity
The new capacity of the tracking list.
*/
void VRTrackingList::reserve(size_t newCapacity)
{
m_items.reserve(newCapacity);
}
//! Resize the tracking list to the new value.
/*!
\param count
The new size of the tracking list.
*/
void VRTrackingList::resize(size_t count)
{
m_items.resize(count);
}
//! Retrieve a pointer to the first item in the tracking list.
/*!
\return
A pointer to the first item in the tracking list.
*/
VRTrackingList::value_type* VRTrackingList::data() & noexcept
{
return m_items.data();
}
//! Retrieve a pointer to the first item in the tracking list.
/*!
\return
A pointer to the first item in the tracking list.
*/
const VRTrackingList::value_type* VRTrackingList::data() const & noexcept
{
return m_items.data();
}
//! Create the HDF5 DataSet the tracking list wraps.
/*!
\param compressionLevel
The compression level the HDF5 DataSet will use.
\return
The HDF5 DataSet the tracking list wraps.
*/
std::unique_ptr<::H5::DataSet, DeleteH5dataSet>
VRTrackingList::createH5dataSet(
int compressionLevel)
{
if (m_pBagDataset.expired())
throw DatasetNotFound{};
const auto pDataset = m_pBagDataset.lock();
const auto& h5file = pDataset->getH5file();
constexpr hsize_t numEntries = 0;
constexpr hsize_t kUnlimitedSize = H5F_UNLIMITED;
const ::H5::DataSpace h5dataSpace{1, &numEntries, &kUnlimitedSize};
const ::H5::CompType h5dataType{sizeof(value_type)};
h5dataType.insertMember("row", HOFFSET(value_type, row),
::H5::PredType::NATIVE_UINT32);
h5dataType.insertMember("col", HOFFSET(value_type, col),
::H5::PredType::NATIVE_UINT32);
h5dataType.insertMember("sub_row", HOFFSET(value_type, sub_row),
::H5::PredType::NATIVE_UINT32);
h5dataType.insertMember("sub_col", HOFFSET(value_type, sub_col),
::H5::PredType::NATIVE_UINT32);
h5dataType.insertMember("depth", HOFFSET(value_type, depth),
::H5::PredType::NATIVE_FLOAT);
h5dataType.insertMember("uncertainty", HOFFSET(value_type, uncertainty),
::H5::PredType::NATIVE_FLOAT);
h5dataType.insertMember("track_code", HOFFSET(value_type, track_code),
::H5::PredType::NATIVE_UINT8);
h5dataType.insertMember("list_series", HOFFSET(value_type, list_series),
::H5::PredType::NATIVE_UINT16);
const ::H5::DSetCreatPropList h5createPropList{};
h5createPropList.setChunk(1, &kChunkSize);
if (compressionLevel > 0 && compressionLevel <= kMaxCompressionLevel)
h5createPropList.setDeflate(compressionLevel);
const auto h5dataSet = h5file.createDataSet(VR_TRACKING_LIST_PATH,
h5dataType, h5dataSpace, h5createPropList);
const ::H5::DataSpace listLengthDataSpace{};
const auto listLengthAtt = h5dataSet.createAttribute(
VR_TRACKING_LIST_LENGTH_NAME, ::H5::PredType::NATIVE_UINT32,
listLengthDataSpace);
const uint32_t length = 0;
listLengthAtt.write(::H5::PredType::NATIVE_UINT32, &length);
return std::unique_ptr<::H5::DataSet, DeleteH5dataSet>(
new ::H5::DataSet{h5dataSet}, DeleteH5dataSet{});
}
//! Open an existing HDF5 DataSet the tracking list wraps.
/*!
\return
The HDF5 DataSet the tracking list wraps.
*/
std::unique_ptr<::H5::DataSet, DeleteH5dataSet>
VRTrackingList::openH5dataSet()
{
if (m_pBagDataset.expired())
throw DatasetNotFound{};
m_items.clear();
const auto pDataset = m_pBagDataset.lock();
// Read the tracking list from the BAG.
// Get the attribute VR_TRACKING_LIST_LENGTH_NAME (uint32)
const auto h5dataSet = pDataset->getH5file().openDataSet(
VR_TRACKING_LIST_PATH);
const auto attribute = h5dataSet.openAttribute(VR_TRACKING_LIST_LENGTH_NAME);
uint32_t length = 0;
attribute.read(attribute.getDataType(), &length);
if (length == 0)
return std::unique_ptr<::H5::DataSet, DeleteH5dataSet>(
new ::H5::DataSet{h5dataSet}, DeleteH5dataSet{});
// Read the rank to size m_items properly.
const auto h5dataSpace = h5dataSet.getSpace();
std::array<hsize_t, H5S_MAX_RANK> dims{};
const int ndims = h5dataSpace.getSimpleExtentDims(dims.data(), nullptr);
size_t numItems = 1;
for (int i=0; i<ndims; ++i)
numItems *= dims[i];
m_items.resize(numItems);
// Set up the structure for reading.
::H5::CompType h5type(sizeof(value_type));
h5type.insertMember("row", HOFFSET(value_type, row),
::H5::PredType::NATIVE_UINT32);
h5type.insertMember("col", HOFFSET(value_type, col),
::H5::PredType::NATIVE_UINT32);
h5type.insertMember("sub_row", HOFFSET(value_type, sub_row),
::H5::PredType::NATIVE_UINT32);
h5type.insertMember("sub_col", HOFFSET(value_type, sub_col),
::H5::PredType::NATIVE_UINT32);
h5type.insertMember("depth", HOFFSET(value_type, depth),
::H5::PredType::NATIVE_FLOAT);
h5type.insertMember("uncertainty", HOFFSET(value_type, uncertainty),
::H5::PredType::NATIVE_FLOAT);
h5type.insertMember("track_code", HOFFSET(value_type, track_code),
::H5::PredType::NATIVE_UINT8);
h5type.insertMember("list_series", HOFFSET(value_type, list_series),
::H5::PredType::NATIVE_UINT16);
h5dataSet.read(m_items.data(), h5type);
return std::unique_ptr<::H5::DataSet, DeleteH5dataSet>(
new ::H5::DataSet{h5dataSet}, DeleteH5dataSet{});
}
//! Write the tracking list to the HDF5 DataSet.
void VRTrackingList::write() const
{
if (m_pBagDataset.expired() || !m_pH5dataSet)
throw DatasetNotFound{};
// Write the Attribute.
const ::H5::DataSpace listLengthDataSpace{};
const ::H5::Attribute listLengthAtt = m_pH5dataSet->openAttribute(
VR_TRACKING_LIST_LENGTH_NAME);
const uint32_t length = static_cast<uint32_t>(m_items.size());
listLengthAtt.write(::H5::PredType::NATIVE_UINT32, &length);
// Resize the DataSet to reflect the new data size.
const hsize_t numItems = length;
m_pH5dataSet->extend(&numItems);
// Write the data.
const ::H5::CompType h5type{sizeof(value_type)};
h5type.insertMember("row", HOFFSET(value_type, row),
::H5::PredType::NATIVE_UINT32);
h5type.insertMember("col", HOFFSET(value_type, col),
::H5::PredType::NATIVE_UINT32);
h5type.insertMember("sub_row", HOFFSET(value_type, sub_row),
::H5::PredType::NATIVE_UINT32);
h5type.insertMember("sub_col", HOFFSET(value_type, sub_col),
::H5::PredType::NATIVE_UINT32);
h5type.insertMember("depth", HOFFSET(value_type, depth),
::H5::PredType::NATIVE_FLOAT);
h5type.insertMember("uncertainty", HOFFSET(value_type, uncertainty),
::H5::PredType::NATIVE_FLOAT);
h5type.insertMember("track_code", HOFFSET(value_type, track_code),
::H5::PredType::NATIVE_UINT8);
h5type.insertMember("list_series", HOFFSET(value_type, list_series),
::H5::PredType::NATIVE_UINT16);
constexpr hsize_t kMaxSize = H5F_UNLIMITED;
::H5::DataSpace h5memSpace{1, &numItems, &kMaxSize};
::H5::DataSpace h5fileSpace{1, &numItems, &kMaxSize};
m_pH5dataSet->write(m_items.data(), h5type, h5memSpace, h5fileSpace);
}
} //namespace BAG