itkGPUCastImageFilter.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 itkGPUCastImageFilter_h
#define itkGPUCastImageFilter_h
 
#include "itkCastImageFilter.h"
#include "itkSimpleDataObjectDecorator.h"
 
#include "itkGPUFunctorBase.h"
#include "itkOpenCLKernelManager.h"
#include "itkGPUUnaryFunctorImageFilter.h"
 
namespace itk
{
itkGPUKernelClassMacro(GPUCastImageFilterKernel);

namespace Functor
{
template <typename TInput, typename TOutput>
class ITK_TEMPLATE_EXPORT GPUCast : public GPUFunctorBase
{
public:
  GPUCast() = default;
 
  ~GPUCast() override = default;

  int
  SetGPUKernelArguments(OpenCLKernelManager::Pointer KernelManager, int KernelHandle) override
  {
    return 0;
  }
};
 
} // end of namespace Functor

template <typename TInputImage, typename TOutputImage>
class ITK_EXPORT GPUCastImageFilter
  : public GPUUnaryFunctorImageFilter<
      TInputImage,
      TOutputImage,
      Functor::GPUCast<typename TInputImage::PixelType, typename TOutputImage::PixelType>,
      CastImageFilter<TInputImage, TOutputImage>>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(GPUCastImageFilter);

  using Self = GPUCastImageFilter;
  using GPUSuperclass =
    GPUUnaryFunctorImageFilter<TInputImage,
                               TOutputImage,
                               Functor::GPUCast<typename TInputImage::PixelType, typename TOutputImage::PixelType>,
                               CastImageFilter<TInputImage, TOutputImage>>;
  using CPUSuperclass = CastImageFilter<TInputImage, TOutputImage>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(GPUCastImageFilter);

  using InputPixelType = typename TInputImage::PixelType;
  using OutputPixelType = typename TOutputImage::PixelType;

  using InputPixelObjectType = SimpleDataObjectDecorator<InputPixelType>;
 
protected:
  GPUCastImageFilter();
  ~GPUCastImageFilter() override = default;

  void
  GPUGenerateData() override;
};
 
} // end of namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkGPUCastImageFilter.hxx"
#endif
 
#endif /* itkGPUCastImageFilter_h */