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authorWillem Jan Palenstijn <WillemJan.Palenstijn@uantwerpen.be>2013-07-01 22:34:11 +0000
committerwpalenst <WillemJan.Palenstijn@uantwerpen.be>2013-07-01 22:34:11 +0000
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+/*
+-----------------------------------------------------------------------
+Copyright 2012 iMinds-Vision Lab, University of Antwerp
+
+Contact: astra@ua.ac.be
+Website: http://astra.ua.ac.be
+
+
+This file is part of the
+All Scale Tomographic Reconstruction Antwerp Toolbox ("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/>.
+
+-----------------------------------------------------------------------
+$Id$
+*/
+
+#ifndef _INC_ASTRA_CUDARECONSTRUCTIONALGORITHM2D
+#define _INC_ASTRA_CUDARECONSTRUCTIONALGORITHM2D
+
+#include "Globals.h"
+#include "Config.h"
+
+#include "ReconstructionAlgorithm2D.h"
+
+#include "Projector2D.h"
+#include "Float32ProjectionData2D.h"
+#include "Float32VolumeData2D.h"
+
+namespace astraCUDA {
+class ReconAlgo;
+}
+
+namespace astra {
+
+/**
+ * This is a base class for the different CUDA implementations of 2D reconstruction algorithms.
+ * They don't use a Projector, and share GPUIndex and DetectorSuperSampling options.
+ *
+ */
+class _AstraExport CCudaReconstructionAlgorithm2D : public CReconstructionAlgorithm2D {
+
+public:
+
+ /** Default constructor, containing no code.
+ */
+ CCudaReconstructionAlgorithm2D();
+
+ /** Destructor.
+ */
+ virtual ~CCudaReconstructionAlgorithm2D();
+
+ /** 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);
+
+ /** Initialize class.
+ *
+ * @param _pProjector Projector Object. (Ignored)
+ * @param _pSinogram ProjectionData2D object containing the sinogram data.
+ * @param _pReconstruction VolumeData2D object for storing the reconstructed volume.
+ * @param _iGPUindex GPU to use.
+ * @param _iDetectorSuperSampling Supersampling factor for the FP.
+ * @param _iPixelSuperSampling Square root of number of samples per voxel, used to compute the backprojection
+ */
+ virtual bool initialize(CProjector2D* _pProjector,
+ CFloat32ProjectionData2D* _pSinogram,
+ CFloat32VolumeData2D* _pReconstruction,
+ int _iGPUindex = 0, int _iDetectorSuperSampling = 1,
+ int _iPixelSuperSampling = 1);
+
+
+ /** Clear this class.
+ */
+ virtual void clear();
+
+ /** Get all information parameters.
+ *
+ * @return map with all boost::any object
+ */
+ virtual map<string,boost::any> getInformation();
+
+ /** Get a single piece of information.
+ *
+ * @param _sIdentifier identifier string to specify which piece of information you want
+ * @return boost::any object
+ */
+ virtual boost::any getInformation(std::string _sIdentifier);
+
+ /** Get a description of the class.
+ *
+ * @return description string
+ */
+ virtual std::string description() const;
+
+ /** Get the norm of the residual image.
+ * Only a few algorithms support this method.
+ *
+ * @param _fNorm if supported, the norm is returned here
+ * @return true if this operation is supported
+ */
+ virtual bool getResidualNorm(float32& _fNorm);
+
+ /**
+ * Sets the index of the used GPU index: first GPU has index 0
+ *
+ * @param _iGPUIndex New GPU index.
+ */
+ void setGPUIndex(int _iGPUIndex);
+
+ /** Perform a number of iterations.
+ *
+ * @param _iNrIterations amount of iterations to perform.
+ */
+ virtual void run(int _iNrIterations = 0);
+
+ virtual void signalAbort();
+
+protected:
+
+ /** Check this object.
+ *
+ * @return object initialized
+ */
+ bool _check();
+
+ /** Initial clearing. Only to be used by constructors.
+ */
+ void _clear();
+
+ /** Set up geometry. For internal use only.
+ */
+ bool setupGeometry();
+
+
+ /** The internally used CUDA algorithm object
+ */
+ astraCUDA::ReconAlgo *m_pAlgo;
+
+ int m_iDetectorSuperSampling;
+ int m_iPixelSuperSampling;
+ int m_iGPUIndex;
+
+ bool m_bAlgoInit;
+};
+
+// inline functions
+inline std::string CCudaReconstructionAlgorithm2D::description() const { return "2D CUDA Reconstruction Algorithm"; };
+
+} // end namespace
+
+#endif