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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 itkGPUInterpolatorCopier_h
#define itkGPUInterpolatorCopier_h
#include "itkInterpolateImageFunction.h"
#include "itkGPUImage.h"
namespace itk
{
/** \class GPUInterpolatorCopier
* \brief A helper class which creates an GPU interpolator which
* is perfect copy of the CPU interpolator.
*
* This class is NOT a filter. Although it has an API similar to a filter, this class
* is not intended to be used in a pipeline. Instead, the typical use will be like
* it is illustrated in the following code:
*
* \code
* struct OCLImageDims
* {
* itkStaticConstMacro( Support1D, bool, true );
* itkStaticConstMacro( Support2D, bool, true );
* itkStaticConstMacro( Support3D, bool, true );
* };
*
* using ImageType = itk::Image< short, 3 >;
* using OCLImageTypes = typelist::MakeTypeList< short, float >::Type;
* using InterpolatorType = itk::InterpolateImageFunction< ImageType, float >;
* using CopierType = itk::GPUInterpolatorCopier< OCLImageTypes, OCLImageDims, InterpolatorType, float >;
* auto copier = CopierType::New();
* copier->SetInputInterpolator(CPUInterpolator);
* copier->Update();
* TransformType::Pointer GPUInterpolator = copier->GetModifiableOutput();
* \endcode
*
* Note that the Update() method must be called explicitly in the filter
* that provides the input to the GPUInterpolatorCopier object. This is needed
* because the GPUInterpolatorCopier is not a pipeline filter.
*
* \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).
*
* \ingroup GPUCommon
*/
template <typename TTypeList, typename NDimensions, typename TInterpolator, typename TOutputCoordRep>
class ITK_TEMPLATE_EXPORT GPUInterpolatorCopier : public Object
{
public:
ITK_DISALLOW_COPY_AND_MOVE(GPUInterpolatorCopier);
/** Standard class typedefs. */
using Self = GPUInterpolatorCopier;
using Superclass = Object;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(GPUInterpolatorCopier, Object);
/** Type CPU definitions for the interpolator. */
using CPUInterpolatorType = TInterpolator;
using CPUInterpolatorConstPointer = typename CPUInterpolatorType::ConstPointer;
using CPUInputImageType = typename CPUInterpolatorType::InputImageType;
using CPUCoordRepType = typename CPUInterpolatorType::CoordRepType;
using GPUCoordRepType = TOutputCoordRep;
/** Typedef's for non explicit GPU interpolator definitions. */
using GPUInterpolatorType = InterpolateImageFunction<CPUInputImageType, GPUCoordRepType>;
using GPUInterpolatorPointer = typename GPUInterpolatorType::Pointer;
using GPUInterpolatorConstPointer = typename GPUInterpolatorType::ConstPointer;
/** Typedef's for explicit GPU interpolator definitions. */
using CPUInputImagePixelType = typename CPUInputImageType::PixelType;
using GPUInputImageType = itk::GPUImage<CPUInputImagePixelType, CPUInputImageType::ImageDimension>;
using GPUExplicitInterpolatorType = InterpolateImageFunction<GPUInputImageType, GPUCoordRepType>;
using GPUExplicitInterpolatorPointer = typename GPUExplicitInterpolatorType::Pointer;
using GPUExplicitInterpolatorConstPointer = typename GPUExplicitInterpolatorType::ConstPointer;
/** Get/Set the input interpolator. */
itkSetConstObjectMacro(InputInterpolator, CPUInterpolatorType);
/** Compute of the non explicit output interpolator. */
itkGetModifiableObjectMacro(Output, GPUInterpolatorType);
/** Compute of the explicit output interpolator.
* This output should be used when ExplicitMode has been set to true. */
itkGetModifiableObjectMacro(ExplicitOutput, GPUExplicitInterpolatorType);
/** Get/Set the explicit mode. The default is true.
* If the explicit mode has been set to false that means that early in the
* code the factories has been created.
* ObjectFactoryBase::RegisterFactory( GPUNearestNeighborInterpolateImageFunctionFactory::New() );
* ObjectFactoryBase::RegisterFactory( GPULinearInterpolateImageFunctionFactory::New() );
* ObjectFactoryBase::RegisterFactory( GPUBSplineInterpolateImageFunctionFactory::New() ); */
itkGetConstMacro(ExplicitMode, bool);
itkSetMacro(ExplicitMode, bool);
/** Update method. */
void
Update();
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro(OutputCoordRepIsFloatingPointCheck, (Concept::IsFloatingPoint<TOutputCoordRep>));
// End concept checking
#endif
protected:
GPUInterpolatorCopier();
~GPUInterpolatorCopier() override = default;
void
PrintSelf(std::ostream & os, Indent indent) const override;
private:
CPUInterpolatorConstPointer m_InputInterpolator{};
GPUInterpolatorPointer m_Output{};
GPUExplicitInterpolatorPointer m_ExplicitOutput{};
ModifiedTimeType m_InternalTransformTime{};
bool m_ExplicitMode{};
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkGPUInterpolatorCopier.hxx"
#endif
#endif /* itkGPUInterpolatorCopier_h */
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