itkGPUResampleImageFilter.h

Go to the documentation of this file.

/*=========================================================================
 *
 *  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 itkGPUResampleImageFilter_h
#define itkGPUResampleImageFilter_h
 
#include "itkResampleImageFilter.h"
 
#include "itkGPUImageToImageFilter.h"
#include "itkGPUInterpolateImageFunction.h"
#include "itkGPUBSplineInterpolateImageFunction.h"
#include "itkGPUBSplineBaseTransform.h"
#include "itkGPUTransformBase.h"
#include "itkGPUCompositeTransformBase.h"
 
namespace itk
{
itkGPUKernelClassMacro(GPUResampleImageFilterKernel);
 
template <typename TInputImage,
          typename TOutputImage,
          typename TInterpolatorPrecisionType = float,
          typename TTransformPrecisionType = TInterpolatorPrecisionType>
class ITK_EXPORT GPUResampleImageFilter
  : public GPUImageToImageFilter<
      TInputImage,
      TOutputImage,
      ResampleImageFilter<TInputImage, TOutputImage, TInterpolatorPrecisionType, TTransformPrecisionType>>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(GPUResampleImageFilter);
 
  using Self = GPUResampleImageFilter;
  using CPUSuperclass =
    ResampleImageFilter<TInputImage, TOutputImage, TInterpolatorPrecisionType, TTransformPrecisionType>;
  using GPUSuperclass = GPUImageToImageFilter<TInputImage, TOutputImage, CPUSuperclass>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  itkNewMacro(Self);
 
  itkTypeMacro(GPUResampleImageFilter, GPUSuperclass);
 
  itkStaticConstMacro(InputImageDimension, unsigned int, TInputImage::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int, TOutputImage::ImageDimension);
 
  using InputImageType = TInputImage;
  using OutputImageType = TOutputImage;
  using GPUInputImage = typename GPUTraits<TInputImage>::Type;
  using GPUOutputImage = typename GPUTraits<TOutputImage>::Type;
  using InterpolatorPrecisionType = TInterpolatorPrecisionType;
 
  using InterpolatorType = typename CPUSuperclass::InterpolatorType;
  using TransformType = typename CPUSuperclass::TransformType;
  using ExtrapolatorType = typename CPUSuperclass::ExtrapolatorType;
  using InputImageRegionType = typename CPUSuperclass::InputImageRegionType;
  using OutputImageRegionType = typename CPUSuperclass::OutputImageRegionType;
  using SizeType = typename CPUSuperclass::SizeType;
  using IndexType = typename CPUSuperclass::IndexType;
 
  using OutputImagePixelType = typename GPUSuperclass::OutputImagePixelType;
 
  using GPUKernelManagerPointer = typename OpenCLKernelManager::Pointer;
  using GPUDataManagerPointer = typename GPUDataManager::Pointer;
  using CompositeTransformBaseType = GPUCompositeTransformBase<InterpolatorPrecisionType, InputImageDimension>;
 
  using GPUBSplineInterpolatorType = GPUBSplineInterpolateImageFunction<InputImageType, InterpolatorPrecisionType>;
  using GPUBSplineInterpolatorCoefficientImageType = typename GPUBSplineInterpolatorType::GPUCoefficientImageType;
  using GPUBSplineInterpolatorCoefficientImagePointer = typename GPUBSplineInterpolatorType::GPUCoefficientImagePointer;
  using GPUBSplineInterpolatorDataManagerPointer = typename GPUBSplineInterpolatorType::GPUDataManagerPointer;
 
  using GPUBSplineBaseTransformType = GPUBSplineBaseTransform<InterpolatorPrecisionType, InputImageDimension>;
 
  void
  SetInterpolator(InterpolatorType * _arg) override;
 
  void
  SetExtrapolator(ExtrapolatorType * _arg) override;
 
  void
  SetTransform(const TransformType * _arg) override;
 
  itkSetMacro(RequestedNumberOfSplits, unsigned int);
  itkGetConstMacro(RequestedNumberOfSplits, unsigned int);
 
protected:
  GPUResampleImageFilter();
  ~GPUResampleImageFilter() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
  void
  GPUGenerateData() override;
 
  // Supported GPU transform types
  enum GPUTransformTypeEnum
  {
    IdentityTransform = 1,
    MatrixOffsetTransform,
    TranslationTransform,
    BSplineTransform,
    Else
  };
 
  void
  SetArgumentsForPreKernelManager(const typename GPUOutputImage::Pointer & output);
 
  void
  SetArgumentsForLoopKernelManager(const typename GPUInputImage::Pointer &  input,
                                   const typename GPUOutputImage::Pointer & output);
 
  void
  SetTransformParametersForLoopKernelManager(const std::size_t transformIndex);
 
  void
  SetArgumentsForPostKernelManager(const typename GPUInputImage::Pointer &  input,
                                   const typename GPUOutputImage::Pointer & output);
 
  void
  SetBSplineTransformCoefficientsToGPU(const std::size_t transformIndex);
 
  const GPUTransformTypeEnum
  GetTransformType(const int & transformIndex) const;
 
  bool
  HasTransform(const GPUTransformTypeEnum type) const;
 
  int
  GetTransformHandle(const GPUTransformTypeEnum type) const;
 
  bool
  GetKernelIdFromTransformId(const std::size_t & index, std::size_t & kernelId) const;
 
  GPUBSplineBaseTransformType *
  GetGPUBSplineBaseTransform(const std::size_t transformIndex);
 
private:
  GPUInterpolatorBase * m_InterpolatorBase;
  GPUTransformBase *    m_TransformBase;
 
  GPUDataManagerPointer m_InputGPUImageBase;
  GPUDataManagerPointer m_OutputGPUImageBase;
  GPUDataManagerPointer m_FilterParameters;
  GPUDataManagerPointer m_DeformationFieldBuffer;
  unsigned int          m_RequestedNumberOfSplits;
 
  using TransformHandle = std::pair<int, bool>;
  using TransformsHandle = std::map<GPUTransformTypeEnum, TransformHandle>;
 
#if 0
  class TransformKernelHelper
  {
    GPUTransformTypeEnum m_TransformType;
    std::string          m_TransformTypeAsString;
    std::: size_t        m_TransformKernelHandle;
    bool                 m_Compiled;
    TransformKernelHelper()
    {
      m_TransformType         = GPUResampleImageFilter::Else;
      m_TransformTypeAsString = "Else";
      m_TransformKernelHandle = 0; // ??
      m_Compiled              = false;
    }
 
 
  };
 
  std::vector< TransformKernelHelper > m_SupportedTransformKernels;
#endif
 
  std::vector<std::string> m_Sources;
  std::size_t              m_SourceIndex;
 
  std::size_t m_InterpolatorSourceLoadedIndex;
  std::size_t m_TransformSourceLoadedIndex;
 
  bool m_InterpolatorIsBSpline;
  bool m_TransformIsCombo;
 
  std::size_t      m_FilterPreGPUKernelHandle;
  TransformsHandle m_FilterLoopGPUKernelHandle;
  std::size_t      m_FilterPostGPUKernelHandle;
 
  // GPU kernel managers
  GPUKernelManagerPointer m_PreKernelManager;
  GPUKernelManagerPointer m_LoopKernelManager;
  GPUKernelManagerPointer m_PostKernelManager;
};
 
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkGPUResampleImageFilter.hxx"
#endif
 
#endif /* itkGPUResampleImageFilter_h */