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/*
-----------------------------------------------------------------------
Copyright: 2010-2021, imec Vision Lab, University of Antwerp
2014-2021, CWI, Amsterdam
Contact: astra@astra-toolbox.com
Website: http://www.astra-toolbox.com/
This file is part of the ASTRA Toolbox.
The ASTRA Toolbox is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
The ASTRA Toolbox is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
-----------------------------------------------------------------------
*/
#ifndef _INC_ASTRA_CUDABACKPROJECTIONALGORITHM
#define _INC_ASTRA_CUDABACKPROJECTIONALGORITHM
#include "Globals.h"
#include "Config.h"
#include "CudaReconstructionAlgorithm2D.h"
#ifdef ASTRA_CUDA
namespace astra {
/**
* \brief
* This class contains a GPU implementation of backprojection.
*
* \par XML Configuration
* \astra_xml_item{ProjectionDataId, integer, Identifier of a projection data object as it is stored in the DataManager.}
* \astra_xml_item{ReconstructionDataId, integer, Identifier of a volume data object as it is stored in the DataManager.}
*
* \par MATLAB example
* \astra_code{
* cfg = astra_struct('BP_CUDA');\n
* cfg.ProjectionDataId = sino_id;\n
* cfg.ReconstructionDataId = recon_id;\n
* alg_id = astra_mex_algorithm('create'\, cfg);\n
* astra_mex_algorithm('iterate'\, alg_id\, 1);\n
* astra_mex_algorithm('delete'\, alg_id);\n
* }
*
*/
class _AstraExport CCudaBackProjectionAlgorithm : public CCudaReconstructionAlgorithm2D
{
public:
// type of the algorithm, needed to register with CAlgorithmFactory
static std::string type;
/** Default constructor, containing no code.
*/
CCudaBackProjectionAlgorithm();
/** Destructor.
*/
virtual ~CCudaBackProjectionAlgorithm();
/** Initialize the algorithm with a config object.
*
* @param _cfg Configuration Object
* @return initialization successful?
*/
virtual bool initialize(const Config& _cfg);
/** Initialize class.
*
* @param _pProjector Projector Object. (Ignored)
* @param _pSinogram ProjectionData2D object containing the sinogram data.
* @param _pReconstruction VolumeData2D object for storing the reconstructed volume.
*/
bool initialize(CProjector2D* _pProjector,
CFloat32ProjectionData2D* _pSinogram,
CFloat32VolumeData2D* _pReconstruction);
/** Get a description of the class.
*
* @return description string
*/
virtual std::string description() const;
};
// inline functions
inline std::string CCudaBackProjectionAlgorithm::description() const { return CCudaBackProjectionAlgorithm::type; };
} // end namespace
#endif // ASTRA_CUDA
#endif
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