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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_CUDAPROJECTOR3D
#define INC_ASTRA_CUDAPROJECTOR3D
#ifdef ASTRA_CUDA
#include <cmath>
#include <vector>
#include "Globals.h"
#include "Config.h"
#include "Projector3D.h"
#include "cuda/3d/astra3d.h"
namespace astra
{
/** This is a three-dimensional CUDA-projector.
* It is essentially a fake projector, containing settings relevant for the
* actual CUDA code.
*/
class _AstraExport CCudaProjector3D : public CProjector3D
{
protected:
/** Check variable values.
*/
bool _check();
/** Clear all member variables, setting all numeric variables to 0 and all pointers to NULL.
* Should only be used by constructors. Otherwise use the clear() function.
*/
void _clear();
public:
// type of the projector, needed to register with CProjectorFactory
static std::string type;
/**
* Default Constructor.
*/
CCudaProjector3D();
/** Destructor, is virtual to show that we are aware subclass destructor is called.
*/
virtual ~CCudaProjector3D();
/** Clear all member variables, setting all numeric variables to 0 and all pointers to NULL.
*/
void clear();
/** Initialize the projector with a config object.
*
* @param _cfg Configuration Object
* @return initialization successful?
*/
virtual bool initialize(const Config& _cfg);
virtual void computeSingleRayWeights(int _iProjectionIndex,
int _iSliceIndex,
int _iDetectorIndex,
SPixelWeight* _pWeightedPixels,
int _iMaxPixelCount,
int& _iStoredPixelCount) {}
virtual int getProjectionWeightsCount(int _iProjectionIndex) { return 0; }
template <typename Policy>
void project(Policy& _policy) {}
template <typename Policy>
void projectSingleProjection(int _iProjection, Policy& _policy) {}
template <typename Policy>
void projectSingleRay(int _iProjection, int _iSlice, int _iDetector, Policy& _policy) {}
/** Return the type of this projector.
*
* @return identification type of this projector
*/
virtual std::string getType() { return type; }
/** get a description of the class
*
* @return description string
*/
virtual std::string description() const;
Cuda3DProjectionKernel getProjectionKernel() const { return m_projectionKernel; }
int getVoxelSuperSampling() const { return m_iVoxelSuperSampling; }
int getDetectorSuperSampling() const { return m_iDetectorSuperSampling; }
int getGPUIndex() const { return m_iGPUIndex; }
protected:
Cuda3DProjectionKernel m_projectionKernel;
int m_iVoxelSuperSampling;
int m_iDetectorSuperSampling;
int m_iGPUIndex;
};
} // namespace astra
#endif // ASTRA_CUDA
#endif /* INC_ASTRA_CUDAPROJECTOR3D */
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