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itkHDF5TransformIO.cxx
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itkHDF5TransformIO.cxx
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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#define ITK_TEMPLATE_EXPLICIT_HDF5TransformIO
#include "itkHDF5TransformIO.h"
#include "itk_H5Cpp.h"
#include "itksys/SystemTools.hxx"
#include "itksys/SystemInformation.hxx"
#include "itkCompositeTransform.h"
#include "itkCompositeTransformIOHelper.h"
#include "itkVersion.h"
#include "itkMakeUniqueForOverwrite.h"
#include <sstream>
namespace itk
{
template <typename TParametersValueType>
HDF5TransformIOTemplate<TParametersValueType>::HDF5TransformIOTemplate() = default;
template <typename TParametersValueType>
HDF5TransformIOTemplate<TParametersValueType>::~HDF5TransformIOTemplate() = default;
template <typename TParametersValueType>
bool
HDF5TransformIOTemplate<TParametersValueType>::CanReadFile(const char * fileName)
{
// HDF5 is so exception happy, we have to worry about
// it throwing a wobbly here if the file doesn't exist
// or has some other problem.
bool rval = true;
try
{
htri_t ishdf5 = H5Fis_hdf5(fileName);
if (ishdf5 <= 0)
{
return false;
}
H5::H5File h5file(fileName, H5F_ACC_RDONLY);
#if (H5_VERS_MAJOR == 1) && (H5_VERS_MINOR < 10)
// check the file has the "TransformGroup"
htri_t exists = H5Lexists(h5file.getId(), transformGroupName.c_str(), H5P_DEFAULT);
if (exists <= 0)
#else
if (!h5file.exists(transformGroupName))
#endif
{
rval = false;
}
}
catch (...)
{
rval = false;
}
return rval;
}
template <typename TParametersValueType>
bool
HDF5TransformIOTemplate<TParametersValueType>::CanWriteFile(const char * fileName)
{
//
// all extensions mentioned in wikipedia + 'hd5'
// actually HDF doesn't care about extensions at
// all and this is just by convention.
const char * extensions[] = {
".hdf", ".h4", ".hdf4", ".h5", ".hdf5", ".he4", ".he5", ".hd5", nullptr,
};
std::string ext(itksys::SystemTools::GetFilenameLastExtension(fileName));
for (unsigned int i = 0; extensions[i] != nullptr; ++i)
{
if (ext == extensions[i])
{
return true;
}
}
return false;
}
template <typename TParametersValueType>
H5::PredType
HDF5TransformIOTemplate<TParametersValueType>::GetH5TypeFromString() const
{
const std::string & NameParametersValueTypeString = Superclass::GetTypeNameString();
if (!NameParametersValueTypeString.compare(std::string("double")))
{
return H5::PredType::NATIVE_DOUBLE;
}
else if (!NameParametersValueTypeString.compare(std::string("float")))
{
return H5::PredType::NATIVE_FLOAT;
}
itkExceptionMacro(<< "Wrong data precision type " << NameParametersValueTypeString << "for writing in HDF5 File");
}
/** Write a Parameter array to the location specified by name */
template <typename TParametersValueType>
void
HDF5TransformIOTemplate<TParametersValueType>::WriteParameters(const std::string & name,
const ParametersType & parameters)
{
const hsize_t dim(parameters.Size());
H5::DataSpace paramSpace(1, &dim);
H5::DataSet paramSet;
// Set the storage format type
const H5::PredType h5StorageIdentifier{ GetH5TypeFromString() };
if (this->GetUseCompression())
{
// Set compression information
// set up properties for chunked, compressed writes.
// in this case, set the chunk size to be the N-1 dimension
// region
H5::DSetCreatPropList plist;
plist.setDeflate(5); // Set intermediate compression level
constexpr hsize_t oneMegabyte = 1024 * 1024;
const hsize_t chunksize = (dim > oneMegabyte) ? oneMegabyte : dim; // Use chunks of 1 MB if large, else use dim
plist.setChunk(1, &chunksize);
paramSet = this->m_H5File->createDataSet(name, h5StorageIdentifier, paramSpace, plist);
}
else
{
paramSet = this->m_H5File->createDataSet(name, h5StorageIdentifier, paramSpace);
}
paramSet.write(parameters.data_block(), h5StorageIdentifier);
paramSet.close();
}
template <typename TParametersValueType>
void
HDF5TransformIOTemplate<TParametersValueType>::WriteFixedParameters(const std::string & name,
const FixedParametersType & fixedParameters)
{
const hsize_t dim(fixedParameters.Size());
H5::DataSpace paramSpace(1, &dim);
H5::DataSet paramSet = this->m_H5File->createDataSet(name, H5::PredType::NATIVE_DOUBLE, paramSpace);
paramSet.write(fixedParameters.data_block(), H5::PredType::NATIVE_DOUBLE);
paramSet.close();
}
/** read a parameter array from the location specified by name */
template <typename TParametersValueType>
typename HDF5TransformIOTemplate<TParametersValueType>::ParametersType
HDF5TransformIOTemplate<TParametersValueType>::ReadParameters(const std::string & DataSetName) const
{
H5::DataSet paramSet = this->m_H5File->openDataSet(DataSetName);
const H5T_class_t Type = paramSet.getTypeClass();
if (Type != H5T_FLOAT)
{
itkExceptionMacro(<< "Wrong data type for " << DataSetName << "in HDF5 File");
}
const H5::DataSpace Space = paramSet.getSpace();
if (Space.getSimpleExtentNdims() != 1)
{
itkExceptionMacro(<< "Wrong # of dims for TransformType "
<< "in HDF5 File");
}
hsize_t dim;
Space.getSimpleExtentDims(&dim, nullptr);
ParametersType ParameterArray;
ParameterArray.SetSize(dim);
H5::FloatType ParamType = paramSet.getFloatType();
if (ParamType.getSize() == sizeof(double))
{
const auto buf = make_unique_for_overwrite<double[]>(dim);
paramSet.read(buf.get(), H5::PredType::NATIVE_DOUBLE);
for (unsigned int i = 0; i < dim; ++i)
{
ParameterArray.SetElement(i, static_cast<ParametersValueType>(buf[i]));
}
}
else
{
const auto buf = make_unique_for_overwrite<float[]>(dim);
paramSet.read(buf.get(), H5::PredType::NATIVE_FLOAT);
for (unsigned int i = 0; i < dim; ++i)
{
ParameterArray.SetElement(i, static_cast<ParametersValueType>(buf[i]));
}
}
paramSet.close();
return ParameterArray;
}
/** read a parameter array from the location specified by name */
template <typename TParametersValueType>
typename HDF5TransformIOTemplate<TParametersValueType>::FixedParametersType
HDF5TransformIOTemplate<TParametersValueType>::ReadFixedParameters(const std::string & DataSetName) const
{
H5::DataSet paramSet = this->m_H5File->openDataSet(DataSetName);
H5T_class_t Type = paramSet.getTypeClass();
if (Type != H5T_FLOAT)
{
itkExceptionMacro(<< "Wrong data type for " << DataSetName << "in HDF5 File");
}
const H5::DataSpace Space = paramSet.getSpace();
if (Space.getSimpleExtentNdims() != 1)
{
itkExceptionMacro(<< "Wrong # of dims for TransformType "
<< "in HDF5 File");
}
hsize_t dim;
Space.getSimpleExtentDims(&dim, nullptr);
FixedParametersType FixedParameterArray;
FixedParameterArray.SetSize(dim);
const H5::FloatType ParamType = paramSet.getFloatType();
if (ParamType.getSize() == sizeof(double))
{
const auto buf = make_unique_for_overwrite<double[]>(dim);
paramSet.read(buf.get(), H5::PredType::NATIVE_DOUBLE);
for (unsigned int i = 0; i < dim; ++i)
{
FixedParameterArray.SetElement(i, static_cast<FixedParametersValueType>(buf[i]));
}
}
else
{
const auto buf = make_unique_for_overwrite<float[]>(dim);
paramSet.read(buf.get(), H5::PredType::NATIVE_FLOAT);
for (unsigned int i = 0; i < dim; ++i)
{
FixedParameterArray.SetElement(i, static_cast<FixedParametersValueType>(buf[i]));
}
}
paramSet.close();
return FixedParameterArray;
}
template <typename TParametersValueType>
void
HDF5TransformIOTemplate<TParametersValueType>::WriteString(const std::string & path, const std::string & value)
{
hsize_t numStrings(1);
H5::DataSpace strSpace(1, &numStrings);
H5::StrType strType(H5::PredType::C_S1, H5T_VARIABLE);
H5::DataSet strSet = this->m_H5File->createDataSet(path, strType, strSpace);
strSet.write(value, strType);
strSet.close();
}
template <typename TParametersValueType>
void
HDF5TransformIOTemplate<TParametersValueType>::WriteString(const std::string & path, const char * s)
{
const std::string _s(s);
WriteString(path, _s);
}
/*
File layout
/TransformGroup
/TransformGroup/N/TransformType -- string
/TransformGroup/N/TransformFixedParameters -- list of double
/TransformGroup/N//TransformParameters -- list of double
*/
template <typename TParametersValueType>
void
HDF5TransformIOTemplate<TParametersValueType>::Read()
{
//
// HDF5 is pretty heavily exception-oriented. Some
// exceptions might be recovered from, theoretically,
// but in our case, either the data we want is there
// and of the right type, or we give up. So everything
// happens in a big try/catch clause
try
{
this->m_H5File = std::make_unique<H5::H5File>(this->GetFileName(), H5F_ACC_RDONLY);
// open /TransformGroup
H5::Group transformGroup = this->m_H5File->openGroup(transformGroupName);
for (unsigned int i = 0; i < transformGroup.getNumObjs(); ++i)
{
std::string transformName(GetTransformName(i));
// open /TransformGroup/N
H5::Group currentTransformGroup = this->m_H5File->openGroup(transformName);
//
// read transform type
std::string transformType;
{
hsize_t numStrings(1);
H5::DataSpace strSpace(1, &numStrings);
H5::StrType typeType(H5::PredType::C_S1, H5T_VARIABLE);
std::string typeName(transformName);
typeName += transformTypeName;
H5::DataSet typeSet = this->m_H5File->openDataSet(typeName);
typeSet.read(transformType, typeType, strSpace);
typeSet.close();
}
// Transform name should be modified to have the output precision type.
Superclass::CorrectTransformPrecisionType(transformType);
TransformPointer transform;
this->CreateTransform(transform, transformType);
this->GetReadTransformList().push_back(transform);
//
// Composite transform doesn't store its own parameters
if (transformType.find("CompositeTransform") == std::string::npos)
{
std::string fixedParamsName(transformName + transformFixedName);
#if (H5_VERS_MAJOR == 1) && (H5_VERS_MINOR < 10)
// check if group exists
htri_t exists = H5Lexists(this->m_H5File->getId(), fixedParamsName.c_str(), H5P_DEFAULT);
if (exists == 0)
{
#else
if (!this->m_H5File->exists(fixedParamsName))
{
#endif
fixedParamsName = transformName + transformFixedNameMisspelled;
}
FixedParametersType fixedparams(this->ReadFixedParameters(fixedParamsName));
transform->SetFixedParameters(fixedparams);
std::string paramsName(transformName + transformParamsName);
#if (H5_VERS_MAJOR == 1) && (H5_VERS_MINOR < 10)
exists = H5Lexists(this->m_H5File->getId(), paramsName.c_str(), H5P_DEFAULT);
if (exists == 0)
{
#else
if (!this->m_H5File->exists(paramsName))
{
#endif
paramsName = transformName + transformParamsNameMisspelled;
}
ParametersType params = this->ReadParameters(paramsName);
transform->SetParametersByValue(params);
}
currentTransformGroup.close();
}
transformGroup.close();
this->m_H5File->close();
}
// catch failure caused by the H5File operations
catch (const H5::Exception & error)
{
itkExceptionMacro(<< error.getCDetailMsg());
}
}
template <typename TParametersValueType>
void
HDF5TransformIOTemplate<TParametersValueType>::WriteOneTransform(const int transformIndex,
const TransformType * curTransform)
{
std::string transformName(GetTransformName(transformIndex));
this->m_H5File->createGroup(transformName);
const std::string transformType = curTransform->GetTransformTypeAsString();
//
// write out transform type.
{
std::string typeName(transformName);
typeName += transformTypeName;
this->WriteString(typeName, transformType);
}
//
// composite transform doesn't store own parameters
if (transformType.find("CompositeTransform") != std::string::npos)
{
if (transformIndex != 0)
{
itkExceptionMacro(<< "Composite Transform can only be 1st transform in a file");
}
}
else
{
//
// write out Fixed Parameters
FixedParametersType FixedtmpArray = curTransform->GetFixedParameters();
const std::string fixedParamsName(transformName + transformFixedName);
this->WriteFixedParameters(fixedParamsName, FixedtmpArray);
// parameters
ParametersType tmpArray = curTransform->GetParameters();
const std::string paramsName(transformName + transformParamsName);
this->WriteParameters(paramsName, tmpArray);
}
}
template <typename TParametersValueType>
void
HDF5TransformIOTemplate<TParametersValueType>::Write()
{
itksys::SystemInformation sysInfo;
sysInfo.RunOSCheck();
try
{
H5::FileAccPropList fapl;
#if (H5_VERS_MAJOR > 1) || (H5_VERS_MAJOR == 1) && (H5_VERS_MINOR > 10) || \
(H5_VERS_MAJOR == 1) && (H5_VERS_MINOR == 10) && (H5_VERS_RELEASE >= 2)
// File format which is backwards compatible with HDF5 version 1.8
// Only HDF5 v1.10.2 has both setLibverBounds method and H5F_LIBVER_V18 constant
fapl.setLibverBounds(H5F_LIBVER_V18, H5F_LIBVER_V18);
#elif (H5_VERS_MAJOR == 1) && (H5_VERS_MINOR == 10) && (H5_VERS_RELEASE < 2)
# error The selected version of HDF5 library does not support setting backwards compatibility at run-time.\
Please use a different version of HDF5, e.g. the one bundled with ITK (by setting ITK_USE_SYSTEM_HDF5 to OFF).
#endif
this->m_H5File =
std::make_unique<H5::H5File>(this->GetFileName(), H5F_ACC_TRUNC, H5::FileCreatPropList::DEFAULT, fapl);
this->WriteString(ItkVersion, Version::GetITKVersion());
this->WriteString(HDFVersion, H5_VERS_INFO);
this->WriteString(OSName, sysInfo.GetOSName());
this->WriteString(OSVersion, sysInfo.GetOSRelease());
this->m_H5File->createGroup(transformGroupName);
ConstTransformListType & transformList = this->GetWriteTransformList();
std::string compositeTransformType = transformList.front()->GetTransformTypeAsString();
CompositeTransformIOHelperTemplate<TParametersValueType> helper;
//
// if the first transform in the list is a
// composite transform, use its internal list
// instead of the IO
if (compositeTransformType.find("CompositeTransform") != std::string::npos)
{
transformList = helper.GetTransformList(transformList.front().GetPointer());
}
typename ConstTransformListType::const_iterator end = transformList.end();
int count = 0;
for (typename ConstTransformListType::const_iterator it = transformList.begin(); it != end; ++it, ++count)
{
this->WriteOneTransform(count, it->GetPointer());
}
this->m_H5File->close();
}
// catch failure caused by the H5File operations
catch (const H5::Exception & error)
{
itkExceptionMacro(<< error.getCDetailMsg());
}
}
} // end namespace itk
namespace itk
{
// HDF uses hierarchical paths to find particular data
// in a file. These strings are used by both reading and
// writing.
const std::string HDF5CommonPathNames::transformGroupName(std::string("/TransformGroup"));
const std::string HDF5CommonPathNames::transformTypeName("/TransformType");
const std::string HDF5CommonPathNames::transformFixedNameMisspelled("/TranformFixedParameters");
const std::string HDF5CommonPathNames::transformParamsNameMisspelled("/TranformParameters");
const std::string HDF5CommonPathNames::transformFixedName("/TransformFixedParameters");
const std::string HDF5CommonPathNames::transformParamsName("/TransformParameters");
const std::string HDF5CommonPathNames::ItkVersion("/ITKVersion");
const std::string HDF5CommonPathNames::HDFVersion("/HDFVersion");
const std::string HDF5CommonPathNames::OSName("/OSName");
const std::string HDF5CommonPathNames::OSVersion("/OSVersion");
// I couldn't figure out a way to represent transforms
// excepts as groups -- the HDF5 composite only allows
// fixed-size structures.
// Since (for now) transforms are ordered in a file, but
// not named, I name them by their order in the file,
// beginning with zero.
const std::string
GetTransformName(int i)
{
std::stringstream s;
s << HDF5CommonPathNames::transformGroupName;
s << "/";
s << i;
return s.str();
}
ITK_GCC_PRAGMA_DIAG_PUSH()
ITK_GCC_PRAGMA_DIAG(ignored "-Wattributes")
template class ITKIOTransformHDF5_EXPORT HDF5TransformIOTemplate<double>;
template class ITKIOTransformHDF5_EXPORT HDF5TransformIOTemplate<float>;
ITK_GCC_PRAGMA_DIAG_POP()
} // end namespace itk