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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/>.
-----------------------------------------------------------------------
*/
#include "astra/cuda/3d/algo3d.h"
#include "astra/cuda/3d/cone_fp.h"
#include "astra/cuda/3d/cone_bp.h"
#include "astra/cuda/3d/par3d_fp.h"
#include "astra/cuda/3d/par3d_bp.h"
#include <cassert>
namespace astraCUDA3d {
ReconAlgo3D::ReconAlgo3D()
{
coneProjs = 0;
par3DProjs = 0;
}
ReconAlgo3D::~ReconAlgo3D()
{
reset();
}
void ReconAlgo3D::reset()
{
delete[] coneProjs;
coneProjs = 0;
delete[] par3DProjs;
par3DProjs = 0;
}
bool ReconAlgo3D::setConeGeometry(const SDimensions3D& _dims, const SConeProjection* _angles, const SProjectorParams3D& _params)
{
dims = _dims;
params = _params;
coneProjs = new SConeProjection[dims.iProjAngles];
par3DProjs = 0;
memcpy(coneProjs, _angles, sizeof(coneProjs[0]) * dims.iProjAngles);
return true;
}
bool ReconAlgo3D::setPar3DGeometry(const SDimensions3D& _dims, const SPar3DProjection* _angles, const SProjectorParams3D& _params)
{
dims = _dims;
params = _params;
par3DProjs = new SPar3DProjection[dims.iProjAngles];
coneProjs = 0;
memcpy(par3DProjs, _angles, sizeof(par3DProjs[0]) * dims.iProjAngles);
return true;
}
bool ReconAlgo3D::callFP(cudaPitchedPtr& D_volumeData,
cudaPitchedPtr& D_projData,
float outputScale)
{
SProjectorParams3D p = params;
p.fOutputScale *= outputScale;
if (coneProjs) {
return ConeFP(D_volumeData, D_projData, dims, coneProjs, p);
} else {
return Par3DFP(D_volumeData, D_projData, dims, par3DProjs, p);
}
}
bool ReconAlgo3D::callBP(cudaPitchedPtr& D_volumeData,
cudaPitchedPtr& D_projData,
float outputScale)
{
SProjectorParams3D p = params;
p.fOutputScale *= outputScale;
if (coneProjs) {
return ConeBP(D_volumeData, D_projData, dims, coneProjs, p);
} else {
return Par3DBP(D_volumeData, D_projData, dims, par3DProjs, p);
}
}
}
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