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/*
-----------------------------------------------------------------------
Copyright: 2010-2015, iMinds-Vision Lab, University of Antwerp
2014-2015, CWI, Amsterdam
Contact: astra@uantwerpen.be
Website: http://sf.net/projects/astra-toolbox
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/>.
-----------------------------------------------------------------------
$Id$
*/
#include "astra/CudaBackProjectionAlgorithm3D.h"
#include <boost/lexical_cast.hpp>
#include "astra/AstraObjectManager.h"
#include "astra/CudaProjector3D.h"
#include "astra/ConeProjectionGeometry3D.h"
#include "astra/ParallelProjectionGeometry3D.h"
#include "astra/ParallelVecProjectionGeometry3D.h"
#include "astra/ConeVecProjectionGeometry3D.h"
#include "../cuda/3d/astra3d.h"
using namespace std;
namespace astra {
// type of the algorithm, needed to register with CAlgorithmFactory
std::string CCudaBackProjectionAlgorithm3D::type = "BP3D_CUDA";
//----------------------------------------------------------------------------------------
// Constructor
CCudaBackProjectionAlgorithm3D::CCudaBackProjectionAlgorithm3D()
{
m_bIsInitialized = false;
m_iGPUIndex = -1;
m_iVoxelSuperSampling = 1;
m_bSIRTWeighting = false;
}
//----------------------------------------------------------------------------------------
// Constructor with initialization
CCudaBackProjectionAlgorithm3D::CCudaBackProjectionAlgorithm3D(CProjector3D* _pProjector,
CFloat32ProjectionData3DMemory* _pProjectionData,
CFloat32VolumeData3DMemory* _pReconstruction)
{
_clear();
initialize(_pProjector, _pProjectionData, _pReconstruction);
}
//----------------------------------------------------------------------------------------
// Destructor
CCudaBackProjectionAlgorithm3D::~CCudaBackProjectionAlgorithm3D()
{
CReconstructionAlgorithm3D::_clear();
}
//---------------------------------------------------------------------------------------
// Check
bool CCudaBackProjectionAlgorithm3D::_check()
{
// check base class
ASTRA_CONFIG_CHECK(CReconstructionAlgorithm3D::_check(), "BP3D_CUDA", "Error in ReconstructionAlgorithm3D initialization");
return true;
}
//---------------------------------------------------------------------------------------
// Initialize - Config
bool CCudaBackProjectionAlgorithm3D::initialize(const Config& _cfg)
{
ASTRA_ASSERT(_cfg.self);
ConfigStackCheck<CAlgorithm> CC("CudaBackProjectionAlgorithm3D", this, _cfg);
// if already initialized, clear first
if (m_bIsInitialized) {
clear();
}
// initialization of parent class
if (!CReconstructionAlgorithm3D::initialize(_cfg)) {
return false;
}
CCudaProjector3D* pCudaProjector = 0;
pCudaProjector = dynamic_cast<CCudaProjector3D*>(m_pProjector);
if (!pCudaProjector) {
// TODO: Report
}
m_iGPUIndex = (int)_cfg.self.getOptionNumerical("GPUindex", -1);
CC.markOptionParsed("GPUindex");
m_iVoxelSuperSampling = 1;
if (pCudaProjector)
m_iVoxelSuperSampling = pCudaProjector->getVoxelSuperSampling();
m_iVoxelSuperSampling = (int)_cfg.self.getOptionNumerical("VoxelSuperSampling", m_iVoxelSuperSampling);
CC.markOptionParsed("VoxelSuperSampling");
m_bSIRTWeighting = _cfg.self.getOptionBool("SIRTWeighting", false);
CC.markOptionParsed("SIRTWeighting");
// success
m_bIsInitialized = _check();
return m_bIsInitialized;
}
//----------------------------------------------------------------------------------------
// Initialize - C++
bool CCudaBackProjectionAlgorithm3D::initialize(CProjector3D* _pProjector,
CFloat32ProjectionData3DMemory* _pSinogram,
CFloat32VolumeData3DMemory* _pReconstruction)
{
// if already initialized, clear first
if (m_bIsInitialized) {
clear();
}
// required classes
m_pProjector = _pProjector;
m_pSinogram = _pSinogram;
m_pReconstruction = _pReconstruction;
// success
m_bIsInitialized = _check();
return m_bIsInitialized;
}
//---------------------------------------------------------------------------------------
// Information - All
map<string,boost::any> CCudaBackProjectionAlgorithm3D::getInformation()
{
map<string, boost::any> res;
return mergeMap<string,boost::any>(CAlgorithm::getInformation(), res);
};
//---------------------------------------------------------------------------------------
// Information - Specific
boost::any CCudaBackProjectionAlgorithm3D::getInformation(std::string _sIdentifier)
{
return CAlgorithm::getInformation(_sIdentifier);
};
//----------------------------------------------------------------------------------------
// Iterate
void CCudaBackProjectionAlgorithm3D::run(int _iNrIterations)
{
// check initialized
ASTRA_ASSERT(m_bIsInitialized);
CFloat32ProjectionData3DMemory* pSinoMem = dynamic_cast<CFloat32ProjectionData3DMemory*>(m_pSinogram);
ASTRA_ASSERT(pSinoMem);
CFloat32VolumeData3DMemory* pReconMem = dynamic_cast<CFloat32VolumeData3DMemory*>(m_pReconstruction);
ASTRA_ASSERT(pReconMem);
const CProjectionGeometry3D* projgeom = pSinoMem->getGeometry();
const CVolumeGeometry3D& volgeom = *pReconMem->getGeometry();
if (m_bSIRTWeighting) {
astraCudaBP_SIRTWeighted(pReconMem->getData(),
pSinoMem->getDataConst(),
&volgeom, projgeom,
m_iGPUIndex, m_iVoxelSuperSampling);
} else {
astraCudaBP(pReconMem->getData(), pSinoMem->getDataConst(),
&volgeom, projgeom,
m_iGPUIndex, m_iVoxelSuperSampling);
}
}
} // namespace astra
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