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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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 "itkGPUKernelManager.h"
#include "itkGPUUnaryFunctorImageFilter.h"
namespace itk
{
/** Create a helper GPU Kernel class for GPUCastImageFilter */
itkGPUKernelClassMacro(GPUCastImageFilterKernel);
/** \class GPUCastImageFilter
* \brief GPU version of CastImageFilter.
*
* \author Denis P. Shamonin and Marius Staring. Division of Image Processing,
* Department of Radiology, Leiden, The Netherlands
*
* \note This work was funded by the Netherlands Organisation for
* Scientific Research (NWO NRG-2010.02 and NWO 639.021.124).
*
* \note Imported from elastix. More information can be found in the Insight Journal
* article: https://www.insight-journal.org/browse/publication/884
*
* \ingroup ITKGPUImageFilterBase
*/
namespace Functor
{
template <typename TInput, typename TOutput>
class ITK_TEMPLATE_EXPORT GPUCast : public GPUFunctorBase
{
public:
GPUCast() {}
~GPUCast() {}
/** Setup GPU kernel arguments for this functor.
* Returns current argument index to set additional arguments in the GPU kernel.
*/
int
SetGPUKernelArguments(GPUKernelManager::Pointer itkNotUsed(kernelManager), int itkNotUsed(kernelHandle))
{
return 0;
}
};
} // end of namespace Functor
template <typename TInputImage, typename TOutputImage>
class ITK_TEMPLATE_EXPORT GPUCastImageFilter
: public GPUUnaryFunctorImageFilter<
TInputImage,
TOutputImage,
Functor::GPUCast<typename TInputImage::PixelType, typename TOutputImage::PixelType>,
CastImageFilter<TInputImage, TOutputImage>>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(GPUCastImageFilter);
/** Standard class typedefs. */
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>;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(GPUCastImageFilter);
/** Pixel types. */
using InputPixelType = typename TInputImage::PixelType;
using OutputPixelType = typename TOutputImage::PixelType;
/** Type of DataObjects to use for scalar inputs */
using InputPixelObjectType = SimpleDataObjectDecorator<InputPixelType>;
protected:
GPUCastImageFilter();
~GPUCastImageFilter() override {}
/** Unlike CPU version, GPU version of binary threshold filter is not
multi-threaded */
void
GPUGenerateData() override;
private:
};
} // end of namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkGPUCastImageFilter.hxx"
#endif
#endif /* itkGPUCastImageFilter_h */
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