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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* 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
*
* http://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.
*
*=========================================================================*/
#ifndef itkGPUCompositeTransformCopier_hxx
#define itkGPUCompositeTransformCopier_hxx
#include "itkGPUCompositeTransformCopier.h"
namespace itk
{
//------------------------------------------------------------------------------
template <typename TTypeList,
typename NDimensions,
typename TCompositeTransform,
typename TOutputTransformPrecisionType>
GPUCompositeTransformCopier<TTypeList, NDimensions, TCompositeTransform, TOutputTransformPrecisionType>::
GPUCompositeTransformCopier()
{
this->m_InputTransform = nullptr;
this->m_Output = nullptr;
this->m_InternalTransformTime = 0;
this->m_ExplicitMode = true;
this->m_TransformCopier = GPUTransformCopierType::New();
}
//------------------------------------------------------------------------------
template <typename TTypeList,
typename NDimensions,
typename TCompositeTransform,
typename TOutputTransformPrecisionType>
void
GPUCompositeTransformCopier<TTypeList, NDimensions, TCompositeTransform, TOutputTransformPrecisionType>::Update()
{
if (!this->m_InputTransform)
{
itkExceptionMacro("Input CompositeTransform has not been connected");
}
// Update only if the input AdvancedCombinationTransform has been modified
const ModifiedTimeType t = this->m_InputTransform->GetMTime();
if (t == this->m_InternalTransformTime)
{
return; // No need to update
}
else if (t > this->m_InternalTransformTime)
{
// Cache the timestamp
this->m_InternalTransformTime = t;
// Create the output
this->m_Output = GPUCompositeTransformType::New();
// Set the same explicit mode
this->m_TransformCopier->SetExplicitMode(this->m_ExplicitMode);
for (std::size_t i = 0; i < m_InputTransform->GetNumberOfTransforms(); ++i)
{
const CPUTransformPointer fromTransform = this->m_InputTransform->GetNthTransform(i);
// Perform copy
this->m_TransformCopier->SetInputTransform(fromTransform);
this->m_TransformCopier->Update();
GPUOutputTransformPointer toTransform = this->m_TransformCopier->GetModifiableOutput();
// Add to output
this->m_Output->AddTransform(toTransform);
}
}
}
//------------------------------------------------------------------------------
template <typename TTypeList,
typename NDimensions,
typename TCompositeTransform,
typename TOutputTransformPrecisionType>
void
GPUCompositeTransformCopier<TTypeList, NDimensions, TCompositeTransform, TOutputTransformPrecisionType>::PrintSelf(
std::ostream & os,
Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "Input Transform: " << this->m_InputTransform << std::endl;
os << indent << "Output Transform: " << this->m_Output << std::endl;
os << indent << "Internal Transform Time: " << this->m_InternalTransformTime << std::endl;
os << indent << "Explicit Mode: " << this->m_ExplicitMode << std::endl;
}
} // end namespace itk
#endif
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