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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_CUDAPROJECTOR2D
#define _INC_ASTRA_CUDAPROJECTOR2D
#ifdef ASTRA_CUDA
#include "ParallelProjectionGeometry2D.h"
#include "Float32Data2D.h"
#include "Projector2D.h"
#include "cuda/2d/astra.h"
namespace astra
{
/** This is a two-dimensional CUDA-projector.
* It is essentially a fake projector, containing settings relevant for the
* actual CUDA code.
*/
class _AstraExport CCudaProjector2D : public CProjector2D {
protected:
/** Initial clearing. Only to be used by constructors.
*/
virtual void _clear();
/** Check the values of this object. If everything is ok, the object can be set to the initialized state.
* The following statements are then guaranteed to hold:
* - no NULL pointers
* - all sub-objects are initialized properly
* - blobvalues are ok
*/
virtual bool _check();
public:
// type of the projector, needed to register with CProjectorFactory
static std::string type;
/** Default constructor.
*/
CCudaProjector2D();
/** Constructor.
*
* @param _pProjectionGeometry Information class about the geometry of the projection. Will be HARDCOPIED.
* @param _pReconstructionGeometry Information class about the geometry of the reconstruction volume. Will be HARDCOPIED.
*/
CCudaProjector2D(CParallelProjectionGeometry2D* _pProjectionGeometry,
CVolumeGeometry2D* _pReconstructionGeometry);
~CCudaProjector2D();
/** Initialize the projector with a config object.
*
* @param _cfg Configuration Object
* @return initialization successful?
*/
virtual bool initialize(const Config& _cfg);
/** Clear this class.
*/
virtual void clear();
virtual int getProjectionWeightsCount(int _iProjectionIndex) { return 0; }
virtual void computeSingleRayWeights(int _iProjectionIndex,
int _iDetectorIndex,
SPixelWeight* _pWeightedPixels,
int _iMaxPixelCount,
int& _iStoredPixelCount) {}
virtual std::vector<SDetector2D> projectPoint(int _iRow, int _iCol)
{ std::vector<SDetector2D> x; return x; }
template <typename Policy>
void project(Policy& _policy) {}
template <typename Policy>
void projectSingleProjection(int _iProjection, Policy& _policy) {}
template <typename Policy>
void projectSingleRay(int _iProjection, int _iDetector, Policy& _policy) {}
/** Return the type of this projector.
*
* @return identification type of this projector
*/
virtual std::string getType();
/** get a description of the class
*
* @return description string
*/
virtual std::string description() const;
Cuda2DProjectionKernel getProjectionKernel() const { return m_projectionKernel; }
int getVoxelSuperSampling() const { return m_iVoxelSuperSampling; }
int getDetectorSuperSampling() const { return m_iDetectorSuperSampling; }
int getGPUIndex() const { return m_iGPUIndex; }
protected:
Cuda2DProjectionKernel m_projectionKernel;
int m_iVoxelSuperSampling;
int m_iDetectorSuperSampling;
int m_iGPUIndex;
};
//----------------------------------------------------------------------------------------
inline std::string CCudaProjector2D::getType()
{
return type;
}
} // namespace astra
#endif
#endif
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