itkLevelSetEvolutionComputeIterationThreader.h

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 *  Copyright NumFOCUS
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 *  you may not use this file except in compliance with the License.
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 *         https://www.apache.org/licenses/LICENSE-2.0.txt
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#ifndef itkLevelSetEvolutionComputeIterationThreader_h
#define itkLevelSetEvolutionComputeIterationThreader_h
 
#include "itkDomainThreader.h"
#include "itkThreadedImageRegionPartitioner.h"
#include "itkThreadedIteratorRangePartitioner.h"
 
#include "itkLevelSetDenseImage.h"
#include "itkWhitakerSparseLevelSetImage.h"
 
namespace itk
{

template <typename TLevelSet, typename TDomainPartitioner, typename TLevelSetEvolution>
class ITK_TEMPLATE_EXPORT LevelSetEvolutionComputeIterationThreader{};
 
// For dense image level set split by putting part of the level set region in
// each thread.
template <typename TImage, typename TLevelSetEvolution>
class ITK_TEMPLATE_EXPORT
  LevelSetEvolutionComputeIterationThreader<LevelSetDenseImage<TImage>,
                                            ThreadedImageRegionPartitioner<TImage::ImageDimension>,
                                            TLevelSetEvolution>
  : public DomainThreader<ThreadedImageRegionPartitioner<TImage::ImageDimension>, TLevelSetEvolution>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(LevelSetEvolutionComputeIterationThreader);

  using Self = LevelSetEvolutionComputeIterationThreader;
  using Superclass = DomainThreader<ThreadedImageRegionPartitioner<TImage::ImageDimension>, TLevelSetEvolution>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkOverrideGetNameOfClassMacro(LevelSetEvolutionComputeIterationThreader);

  itkNewMacro(Self);

  using typename Superclass::DomainType;
  using typename Superclass::AssociateType;

  using LevelSetEvolutionType = TLevelSetEvolution;
  using IdListType = typename LevelSetEvolutionType::IdListType;
  using IdListConstIterator = typename LevelSetEvolutionType::IdListConstIterator;
  using InputImageType = typename LevelSetEvolutionType::InputImageType;
  using LevelSetType = typename LevelSetEvolutionType::LevelSetType;
  using IndexType = typename LevelSetType::IndexType;
  using RegionType = typename LevelSetType::RegionType;
  using OffsetType = typename LevelSetType::OffsetType;
  using LevelSetImageType = typename LevelSetEvolutionType::LevelSetImageType;
  using LevelSetDataType = typename LevelSetEvolutionType::LevelSetDataType;
  using LevelSetOutputRealType = typename LevelSetEvolutionType::LevelSetOutputRealType;
  using LevelSetContainerType = typename LevelSetEvolutionType::LevelSetContainerType;
  using EquationContainerType = typename LevelSetEvolutionType::EquationContainerType;
  using TermContainerType = typename LevelSetEvolutionType::TermContainerType;
 
protected:
  LevelSetEvolutionComputeIterationThreader() = default;
 
  void
  ThreadedExecution(const DomainType & imageSubRegion, const ThreadIdType threadId) override;
};
 
// For dense image level set split by putting a level set domain in each thread.
template <typename TImage, typename TLevelSetEvolution>
class ITK_TEMPLATE_EXPORT LevelSetEvolutionComputeIterationThreader<
  LevelSetDenseImage<TImage>,
  ThreadedIteratorRangePartitioner<
    typename TLevelSetEvolution::DomainMapImageFilterType::DomainMapType::const_iterator>,
  TLevelSetEvolution>
  : public DomainThreader<ThreadedIteratorRangePartitioner<
                            typename TLevelSetEvolution::DomainMapImageFilterType::DomainMapType::const_iterator>,
                          TLevelSetEvolution>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(LevelSetEvolutionComputeIterationThreader);
 
  using DomainMapConstIteratorType =
    typename TLevelSetEvolution::DomainMapImageFilterType::DomainMapType::const_iterator;
  using ThreadedDomainMapPartitionerType = ThreadedIteratorRangePartitioner<DomainMapConstIteratorType>;

  using Self = LevelSetEvolutionComputeIterationThreader;
  using Superclass = DomainThreader<ThreadedDomainMapPartitionerType, TLevelSetEvolution>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkOverrideGetNameOfClassMacro(LevelSetEvolutionComputeIterationThreader);

  itkNewMacro(Self);

  using typename Superclass::DomainType;
  using typename Superclass::AssociateType;

  using LevelSetEvolutionType = TLevelSetEvolution;
  using IdListType = typename LevelSetEvolutionType::IdListType;
  using IdListConstIterator = typename LevelSetEvolutionType::IdListConstIterator;
  using InputImageType = typename LevelSetEvolutionType::InputImageType;
  using LevelSetType = typename LevelSetEvolutionType::LevelSetType;
  using IndexType = typename LevelSetType::IndexType;
  using RegionType = typename LevelSetType::RegionType;
  using OffsetType = typename LevelSetType::OffsetType;
  using LevelSetImageType = typename LevelSetEvolutionType::LevelSetImageType;
  using LevelSetDataType = typename LevelSetEvolutionType::LevelSetDataType;
  using LevelSetOutputRealType = typename LevelSetEvolutionType::LevelSetOutputRealType;
  using LevelSetContainerType = typename LevelSetEvolutionType::LevelSetContainerType;
  using EquationContainerType = typename LevelSetEvolutionType::EquationContainerType;
  using TermContainerType = typename LevelSetEvolutionType::TermContainerType;
 
protected:
  LevelSetEvolutionComputeIterationThreader() = default;
 
  void
  ThreadedExecution(const DomainType & imageSubDomain, const ThreadIdType threadId) override;
};
 
// For Whitaker sparse level set split by putting part of the level set in each
// thread.
template <typename TOutput, unsigned int VDimension, typename TLevelSetEvolution>
class ITK_TEMPLATE_EXPORT LevelSetEvolutionComputeIterationThreader<
  WhitakerSparseLevelSetImage<TOutput, VDimension>,
  ThreadedIteratorRangePartitioner<typename WhitakerSparseLevelSetImage<TOutput, VDimension>::LayerConstIterator>,
  TLevelSetEvolution>
  : public DomainThreader<
      ThreadedIteratorRangePartitioner<typename WhitakerSparseLevelSetImage<TOutput, VDimension>::LayerConstIterator>,
      TLevelSetEvolution>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(LevelSetEvolutionComputeIterationThreader);

  using Self = LevelSetEvolutionComputeIterationThreader;
  using Superclass = DomainThreader<
    ThreadedIteratorRangePartitioner<typename WhitakerSparseLevelSetImage<TOutput, VDimension>::LayerConstIterator>,
    TLevelSetEvolution>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkOverrideGetNameOfClassMacro(LevelSetEvolutionComputeIterationThreader);

  itkNewMacro(Self);

  using typename Superclass::DomainType;
  using typename Superclass::AssociateType;

  using LevelSetEvolutionType = TLevelSetEvolution;
  using LevelSetType = typename LevelSetEvolutionType::LevelSetType;
  using IndexType = typename LevelSetType::IndexType;
  using RegionType = typename LevelSetType::RegionType;
  using OffsetType = typename LevelSetType::OffsetType;
  using LevelSetContainerType = typename LevelSetEvolutionType::LevelSetContainerType;
  using LevelSetIdentifierType = typename LevelSetEvolutionType::LevelSetIdentifierType;
  using LevelSetInputType = typename LevelSetEvolutionType::LevelSetInputType;
  using LevelSetOutputType = typename LevelSetEvolutionType::LevelSetOutputType;
  using LevelSetDataType = typename LevelSetEvolutionType::LevelSetDataType;
  using TermContainerType = typename LevelSetEvolutionType::TermContainerType;
  using NodePairType = typename LevelSetEvolutionType::NodePairType;
 
protected:
  LevelSetEvolutionComputeIterationThreader() = default;
 
  void
  BeforeThreadedExecution() override;
 
  void
  ThreadedExecution(const DomainType & iteratorSubRange, const ThreadIdType threadId) override;
 
  void
  AfterThreadedExecution() override;
 
  using NodePairsPerThreadType = std::vector<std::vector<NodePairType>>;
  NodePairsPerThreadType m_NodePairsPerThread{};
};
 
} // namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkLevelSetEvolutionComputeIterationThreader.hxx"
#endif
 
#endif