itkGPUShrinkImageFilter.h

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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 itkGPUShrinkImageFilter_h
#define itkGPUShrinkImageFilter_h
 
#include "itkShrinkImageFilter.h"
 
#include "itkGPUImageToImageFilter.h"
#include "itkGPUImage.h"
#include "itkVersion.h"
 
namespace itk
{
itkGPUKernelClassMacro(GPUShrinkImageFilterKernel);
 
template <typename TInputImage, typename TOutputImage>
class ITK_EXPORT GPUShrinkImageFilter
  : public GPUImageToImageFilter<TInputImage, TOutputImage, ShrinkImageFilter<TInputImage, TOutputImage>>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(GPUShrinkImageFilter);
 
  using Self = GPUShrinkImageFilter;
  using CPUSuperclass = ShrinkImageFilter<TInputImage, TOutputImage>;
  using GPUSuperclass = GPUImageToImageFilter<TInputImage, TOutputImage, CPUSuperclass>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  itkNewMacro(Self);
 
  itkTypeMacro(GPUShrinkImageFilter, GPUSuperclass);
 
  using OutputImageRegionType = typename GPUSuperclass::OutputImageRegionType;
  using OutputImagePixelType = typename GPUSuperclass::OutputImagePixelType;
 
  using InputImageType = TInputImage;
  using InputImagePointer = typename InputImageType::Pointer;
  using InputImageConstPointer = typename InputImageType::ConstPointer;
  using InputImageRegionType = typename InputImageType::RegionType;
  using InputImagePixelType = typename InputImageType::PixelType;
 
  using ShrinkFactorsType = typename CPUSuperclass::ShrinkFactorsType;
  using OutputIndexType = typename CPUSuperclass::OutputIndexType;
  using InputIndexType = typename CPUSuperclass::InputIndexType;
  using OutputOffsetType = typename CPUSuperclass::OutputOffsetType;
 
  itkStaticConstMacro(InputImageDimension, unsigned int, TInputImage::ImageDimension);
  itkStaticConstMacro(OutputImageDimension, unsigned int, TOutputImage::ImageDimension);
 
protected:
  GPUShrinkImageFilter();
  ~GPUShrinkImageFilter() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
  void
  GPUGenerateData() override;
 
private:
  std::size_t m_FilterGPUKernelHandle{};
  std::size_t m_DeviceLocalMemorySize{};
};
 
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkGPUShrinkImageFilter.hxx"
#endif
 
#endif /* itkGPUShrinkImageFilter_h */