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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 itkGPUBSplineBaseTransform_h
#define itkGPUBSplineBaseTransform_h
#include "itkGPUDataManager.h"
#include "itkGPUImage.h"
#include "itkGPUTransformBase.h"
namespace itk
{
/** Create a helper GPU Kernel class for GPUBSplineTransform */
itkGPUKernelClassMacro(GPUBSplineTransformKernel);
/** \class GPUBSplineBaseTransform
* \brief GPU base class for the BSplineTransform.
*
* \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 TScalarType = float, unsigned int NDimensions = 3>
class ITK_TEMPLATE_EXPORT GPUBSplineBaseTransform : public GPUTransformBase
{
public:
/** Standard class typedefs. */
using Self = GPUBSplineBaseTransform;
/** Run-time type information (and related methods). */
itkTypeMacro(GPUBSplineBaseTransform, GPUTransformBase);
/** Dimension of the domain space. */
itkStaticConstMacro(SpaceDimension, unsigned int, NDimensions);
/** Get the Spline Order, supports 0th - 3th order splines. The default
* is a 3rd order spline. */
itkGetConstMacro(SplineOrder, unsigned int);
using GPUCoefficientImageType = GPUImage<TScalarType, NDimensions>;
using GPUCoefficientImagePointer = typename GPUCoefficientImageType::Pointer;
using GPUDataManagerPointer = typename GPUDataManager::Pointer;
using GPUCoefficientImageArray = FixedArray<GPUCoefficientImagePointer, NDimensions>;
using GPUCoefficientImageBaseArray = FixedArray<GPUDataManagerPointer, NDimensions>;
/** Returns true, the transform is BSpline transform. */
bool
IsBSplineTransform() const override
{
return true;
}
/** Get the GPU array of coefficient images. */
const GPUCoefficientImageArray
GetGPUCoefficientImages() const;
/** Get the GPU array of coefficient images bases. */
const GPUCoefficientImageBaseArray
GetGPUCoefficientImagesBases() const;
protected:
/** Sets the Spline Order, supports 0th - 3th order splines. The default
* is a 3rd order spline. Should be protected method.
* In ITK design the BSpline order is a template parameter of the
* \see BSplineBaseTransform. We don't want the same definition
* in GPUBSplineBaseTransform. Instead the derived class should
* call SetSplineOrder() in the constructor. */
virtual void
SetSplineOrder(const unsigned int splineOrder);
GPUBSplineBaseTransform();
~GPUBSplineBaseTransform() override = default;
/** Returns OpenCL \a source code for the transform.
* Returns true if source code was combined, false otherwise. */
bool
GetSourceCode(std::string & source) const override;
GPUCoefficientImageArray m_GPUBSplineTransformCoefficientImages{};
GPUCoefficientImageBaseArray m_GPUBSplineTransformCoefficientImagesBase{};
private:
GPUBSplineBaseTransform(const Self & other) = delete;
const Self &
operator=(const Self &) = delete;
std::vector<std::string> m_Sources{};
// User specified spline order (3rd or cubic is the default)
unsigned int m_SplineOrder{};
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkGPUBSplineBaseTransform.hxx"
#endif
#endif /* itkGPUBSplineBaseTransform_h */
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