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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/>.
+
+-----------------------------------------------------------------------
+$Id$
+*/
+
+#ifdef ASTRA_CUDA
+
+#include "astra/CudaReconstructionAlgorithm2D.h"
+
+#include <boost/lexical_cast.hpp>
+
+#include "astra/AstraObjectManager.h"
+#include "astra/FanFlatProjectionGeometry2D.h"
+#include "astra/FanFlatVecProjectionGeometry2D.h"
+#include "astra/CudaProjector2D.h"
+
+#include "../cuda/2d/algo.h"
+
+#include <ctime>
+
+using namespace std;
+
+namespace astra {
+
+//----------------------------------------------------------------------------------------
+// Constructor
+CCudaReconstructionAlgorithm2D::CCudaReconstructionAlgorithm2D()
+{
+ _clear();
+}
+
+
+
+//----------------------------------------------------------------------------------------
+// Destructor
+CCudaReconstructionAlgorithm2D::~CCudaReconstructionAlgorithm2D()
+{
+ delete m_pAlgo;
+ m_pAlgo = 0;
+ m_bAlgoInit = false;
+}
+
+void CCudaReconstructionAlgorithm2D::clear()
+{
+ delete m_pAlgo;
+ _clear();
+}
+
+void CCudaReconstructionAlgorithm2D::_clear()
+{
+ m_bIsInitialized = false;
+ m_pAlgo = 0;
+ m_bAlgoInit = false;
+ CReconstructionAlgorithm2D::_clear();
+
+ m_iGPUIndex = 0;
+ m_iDetectorSuperSampling = 1;
+ m_iPixelSuperSampling = 1;
+}
+
+//---------------------------------------------------------------------------------------
+// Initialize - Config
+bool CCudaReconstructionAlgorithm2D::initialize(const Config& _cfg)
+{
+ ASTRA_ASSERT(_cfg.self);
+ ConfigStackCheck<CAlgorithm> CC("CudaReconstructionAlgorithm2D", this, _cfg);
+
+ // if already initialized, clear first
+ if (m_bIsInitialized) {
+ clear();
+ }
+
+ // sinogram data
+ XMLNode* node = _cfg.self->getSingleNode("ProjectionDataId");
+ ASTRA_CONFIG_CHECK(node, "CudaSirt2", "No ProjectionDataId tag specified.");
+ int id = boost::lexical_cast<int>(node->getContent());
+ m_pSinogram = dynamic_cast<CFloat32ProjectionData2D*>(CData2DManager::getSingleton().get(id));
+ ASTRA_DELETE(node);
+ CC.markNodeParsed("ProjectionDataId");
+
+ // reconstruction data
+ node = _cfg.self->getSingleNode("ReconstructionDataId");
+ ASTRA_CONFIG_CHECK(node, "CudaSirt2", "No ReconstructionDataId tag specified.");
+ id = boost::lexical_cast<int>(node->getContent());
+ m_pReconstruction = dynamic_cast<CFloat32VolumeData2D*>(CData2DManager::getSingleton().get(id));
+ ASTRA_DELETE(node);
+ CC.markNodeParsed("ReconstructionDataId");
+
+ // fixed mask
+ if (_cfg.self->hasOption("ReconstructionMaskId")) {
+ m_bUseReconstructionMask = true;
+ id = boost::lexical_cast<int>(_cfg.self->getOption("ReconstructionMaskId"));
+ m_pReconstructionMask = dynamic_cast<CFloat32VolumeData2D*>(CData2DManager::getSingleton().get(id));
+ }
+ CC.markOptionParsed("ReconstructionMaskId");
+ // fixed mask
+ if (_cfg.self->hasOption("SinogramMaskId")) {
+ m_bUseSinogramMask = true;
+ id = boost::lexical_cast<int>(_cfg.self->getOption("SinogramMaskId"));
+ m_pSinogramMask = dynamic_cast<CFloat32ProjectionData2D*>(CData2DManager::getSingleton().get(id));
+ }
+ CC.markOptionParsed("SinogramMaskId");
+
+ // Constraints - NEW
+ if (_cfg.self->hasOption("MinConstraint")) {
+ m_bUseMinConstraint = true;
+ m_fMinValue = _cfg.self->getOptionNumerical("MinConstraint", 0.0f);
+ CC.markOptionParsed("MinConstraint");
+ } else {
+ // Constraint - OLD
+ m_bUseMinConstraint = _cfg.self->getOptionBool("UseMinConstraint", false);
+ CC.markOptionParsed("UseMinConstraint");
+ if (m_bUseMinConstraint) {
+ m_fMinValue = _cfg.self->getOptionNumerical("MinConstraintValue", 0.0f);
+ CC.markOptionParsed("MinConstraintValue");
+ }
+ }
+ if (_cfg.self->hasOption("MaxConstraint")) {
+ m_bUseMaxConstraint = true;
+ m_fMaxValue = _cfg.self->getOptionNumerical("MaxConstraint", 255.0f);
+ CC.markOptionParsed("MaxConstraint");
+ } else {
+ // Constraint - OLD
+ m_bUseMaxConstraint = _cfg.self->getOptionBool("UseMaxConstraint", false);
+ CC.markOptionParsed("UseMaxConstraint");
+ if (m_bUseMaxConstraint) {
+ m_fMaxValue = _cfg.self->getOptionNumerical("MaxConstraintValue", 0.0f);
+ CC.markOptionParsed("MaxConstraintValue");
+ }
+ }
+
+ // GPU number
+ m_iGPUIndex = (int)_cfg.self->getOptionNumerical("GPUindex", 0);
+ m_iGPUIndex = (int)_cfg.self->getOptionNumerical("GPUIndex", m_iGPUIndex);
+ CC.markOptionParsed("GPUindex");
+ if (!_cfg.self->hasOption("GPUindex"))
+ CC.markOptionParsed("GPUIndex");
+
+ // Detector supersampling factor
+ m_iDetectorSuperSampling = (int)_cfg.self->getOptionNumerical("DetectorSuperSampling", 1);
+ CC.markOptionParsed("DetectorSuperSampling");
+
+ // Pixel supersampling factor
+ m_iPixelSuperSampling = (int)_cfg.self->getOptionNumerical("PixelSuperSampling", 1);
+ CC.markOptionParsed("PixelSuperSampling");
+
+
+ // This isn't used yet, but passing it is not something to warn about
+ node = _cfg.self->getSingleNode("ProjectorId");
+ if (node) {
+ id = boost::lexical_cast<int>(node->getContent());
+ CProjector2D *projector = CProjector2DManager::getSingleton().get(id);
+ if (!dynamic_cast<CCudaProjector2D*>(projector)) {
+ cout << "Warning: non-CUDA Projector2D passed to FP_CUDA" << std::endl;
+ }
+ delete node;
+ }
+ CC.markNodeParsed("ProjectorId");
+
+
+ return _check();
+}
+
+//---------------------------------------------------------------------------------------
+// Initialize - C++
+bool CCudaReconstructionAlgorithm2D::initialize(CProjector2D* _pProjector,
+ CFloat32ProjectionData2D* _pSinogram,
+ CFloat32VolumeData2D* _pReconstruction)
+{
+ return initialize(_pProjector, _pSinogram, _pReconstruction, 0, 1);
+}
+
+//---------------------------------------------------------------------------------------
+// Initialize - C++
+bool CCudaReconstructionAlgorithm2D::initialize(CProjector2D* _pProjector,
+ CFloat32ProjectionData2D* _pSinogram,
+ CFloat32VolumeData2D* _pReconstruction,
+ int _iGPUindex,
+ int _iDetectorSuperSampling,
+ int _iPixelSuperSampling)
+{
+ // if already initialized, clear first
+ if (m_bIsInitialized) {
+ clear();
+ }
+
+ m_pProjector = 0;
+
+ // required classes
+ m_pSinogram = _pSinogram;
+ m_pReconstruction = _pReconstruction;
+
+ m_iDetectorSuperSampling = _iDetectorSuperSampling;
+ m_iPixelSuperSampling = _iPixelSuperSampling;
+ m_iGPUIndex = _iGPUindex;
+
+ return _check();
+}
+
+
+//----------------------------------------------------------------------------------------
+// Check
+bool CCudaReconstructionAlgorithm2D::_check()
+{
+ // TODO: CLEAN UP
+
+
+ // check pointers
+ //ASTRA_CONFIG_CHECK(m_pProjector, "Reconstruction2D", "Invalid Projector Object.");
+ ASTRA_CONFIG_CHECK(m_pSinogram, "SIRT_CUDA", "Invalid Projection Data Object.");
+ ASTRA_CONFIG_CHECK(m_pReconstruction, "SIRT_CUDA", "Invalid Reconstruction Data Object.");
+
+ // check initializations
+ //ASTRA_CONFIG_CHECK(m_pProjector->isInitialized(), "Reconstruction2D", "Projector Object Not Initialized.");
+ ASTRA_CONFIG_CHECK(m_pSinogram->isInitialized(), "SIRT_CUDA", "Projection Data Object Not Initialized.");
+ ASTRA_CONFIG_CHECK(m_pReconstruction->isInitialized(), "SIRT_CUDA", "Reconstruction Data Object Not Initialized.");
+
+ ASTRA_CONFIG_CHECK(m_iDetectorSuperSampling >= 1, "SIRT_CUDA", "DetectorSuperSampling must be a positive integer.");
+ ASTRA_CONFIG_CHECK(m_iPixelSuperSampling >= 1, "SIRT_CUDA", "PixelSuperSampling must be a positive integer.");
+ ASTRA_CONFIG_CHECK(m_iGPUIndex >= 0, "SIRT_CUDA", "GPUIndex must be a non-negative integer.");
+
+ // check compatibility between projector and data classes
+// ASTRA_CONFIG_CHECK(m_pSinogram->getGeometry()->isEqual(m_pProjector->getProjectionGeometry()), "SIRT_CUDA", "Projection Data not compatible with the specified Projector.");
+// ASTRA_CONFIG_CHECK(m_pReconstruction->getGeometry()->isEqual(m_pProjector->getVolumeGeometry()), "SIRT_CUDA", "Reconstruction Data not compatible with the specified Projector.");
+
+ // todo: turn some of these back on
+
+// ASTRA_CONFIG_CHECK(m_pProjectionGeometry, "SIRT_CUDA", "ProjectionGeometry not specified.");
+// ASTRA_CONFIG_CHECK(m_pProjectionGeometry->isInitialized(), "SIRT_CUDA", "ProjectionGeometry not initialized.");
+// ASTRA_CONFIG_CHECK(m_pReconstructionGeometry, "SIRT_CUDA", "ReconstructionGeometry not specified.");
+// ASTRA_CONFIG_CHECK(m_pReconstructionGeometry->isInitialized(), "SIRT_CUDA", "ReconstructionGeometry not initialized.");
+
+ // check dimensions
+ //ASTRA_CONFIG_CHECK(m_pSinogram->getAngleCount() == m_pProjectionGeometry->getProjectionAngleCount(), "SIRT_CUDA", "Sinogram data object size mismatch.");
+ //ASTRA_CONFIG_CHECK(m_pSinogram->getDetectorCount() == m_pProjectionGeometry->getDetectorCount(), "SIRT_CUDA", "Sinogram data object size mismatch.");
+ //ASTRA_CONFIG_CHECK(m_pReconstruction->getWidth() == m_pReconstructionGeometry->getGridColCount(), "SIRT_CUDA", "Reconstruction data object size mismatch.");
+ //ASTRA_CONFIG_CHECK(m_pReconstruction->getHeight() == m_pReconstructionGeometry->getGridRowCount(), "SIRT_CUDA", "Reconstruction data object size mismatch.");
+
+ // check restrictions
+ // TODO: check restrictions built into cuda code
+
+
+ // success
+ m_bIsInitialized = true;
+ return true;
+}
+
+void CCudaReconstructionAlgorithm2D::setGPUIndex(int _iGPUIndex)
+{
+ m_iGPUIndex = _iGPUIndex;
+}
+
+
+//---------------------------------------------------------------------------------------
+// Information - All
+map<string,boost::any> CCudaReconstructionAlgorithm2D::getInformation()
+{
+ // TODO: Verify and clean up
+
+ map<string,boost::any> res;
+ res["ProjectionGeometry"] = getInformation("ProjectionGeometry");
+ res["ReconstructionGeometry"] = getInformation("ReconstructionGeometry");
+ res["ProjectionDataId"] = getInformation("ProjectionDataId");
+ res["ReconstructionDataId"] = getInformation("ReconstructionDataId");
+ res["ReconstructionMaskId"] = getInformation("ReconstructionMaskId");
+ res["GPUindex"] = getInformation("GPUindex");
+ res["DetectorSuperSampling"] = getInformation("DetectorSuperSampling");
+ res["PixelSuperSampling"] = getInformation("PixelSuperSampling");
+ res["UseMinConstraint"] = getInformation("UseMinConstraint");
+ res["MinConstraintValue"] = getInformation("MinConstraintValue");
+ res["UseMaxConstraint"] = getInformation("UseMaxConstraint");
+ res["MaxConstraintValue"] = getInformation("MaxConstraintValue");
+ return mergeMap<string,boost::any>(CReconstructionAlgorithm2D::getInformation(), res);
+}
+
+//---------------------------------------------------------------------------------------
+// Information - Specific
+boost::any CCudaReconstructionAlgorithm2D::getInformation(std::string _sIdentifier)
+{
+ // TODO: Verify and clean up
+
+ if (_sIdentifier == "UseMinConstraint") { return m_bUseMinConstraint ? string("yes") : string("no"); }
+ if (_sIdentifier == "MinConstraintValue") { return m_fMinValue; }
+ if (_sIdentifier == "UseMaxConstraint") { return m_bUseMaxConstraint ? string("yes") : string("no"); }
+ if (_sIdentifier == "MaxConstraintValue") { return m_fMaxValue; }
+
+ // TODO: store these so we can return them?
+ if (_sIdentifier == "ProjectionGeometry") { return string("not implemented"); }
+ if (_sIdentifier == "ReconstructionGeometry") { return string("not implemented"); }
+ if (_sIdentifier == "GPUindex") { return m_iGPUIndex; }
+ if (_sIdentifier == "DetectorSuperSampling") { return m_iDetectorSuperSampling; }
+ if (_sIdentifier == "PixelSuperSampling") { return m_iPixelSuperSampling; }
+
+ if (_sIdentifier == "ProjectionDataId") {
+ int iIndex = CData2DManager::getSingleton().getIndex(m_pSinogram);
+ if (iIndex != 0) return iIndex;
+ return std::string("not in manager");
+ }
+ if (_sIdentifier == "ReconstructionDataId") {
+ int iIndex = CData2DManager::getSingleton().getIndex(m_pReconstruction);
+ if (iIndex != 0) return iIndex;
+ return std::string("not in manager");
+ }
+ if (_sIdentifier == "ReconstructionMaskId") {
+ if (!m_bUseReconstructionMask) return string("not used");
+ int iIndex = CData2DManager::getSingleton().getIndex(m_pReconstructionMask);
+ if (iIndex != 0) return iIndex;
+ return std::string("not in manager");
+ }
+ return CReconstructionAlgorithm2D::getInformation(_sIdentifier);
+}
+
+bool CCudaReconstructionAlgorithm2D::setupGeometry()
+{
+ ASTRA_ASSERT(m_bIsInitialized);
+ ASTRA_ASSERT(!m_bAlgoInit);
+
+ bool ok;
+
+ // TODO: Probably not the best place for this...
+ ok = m_pAlgo->setGPUIndex(m_iGPUIndex);
+ if (!ok) return false;
+
+ astraCUDA::SDimensions dims;
+
+ const CVolumeGeometry2D& volgeom = *m_pReconstruction->getGeometry();
+
+ // TODO: off-center geometry, non-square pixels
+ dims.iVolWidth = volgeom.getGridColCount();
+ dims.iVolHeight = volgeom.getGridRowCount();
+ float fPixelSize = volgeom.getPixelLengthX();
+
+ dims.iRaysPerDet = m_iDetectorSuperSampling;
+ dims.iRaysPerPixelDim = m_iPixelSuperSampling;
+
+
+ const CParallelProjectionGeometry2D* parProjGeom = dynamic_cast<CParallelProjectionGeometry2D*>(m_pSinogram->getGeometry());
+ const CFanFlatProjectionGeometry2D* fanProjGeom = dynamic_cast<CFanFlatProjectionGeometry2D*>(m_pSinogram->getGeometry());
+ const CFanFlatVecProjectionGeometry2D* fanVecProjGeom = dynamic_cast<CFanFlatVecProjectionGeometry2D*>(m_pSinogram->getGeometry());
+
+ if (parProjGeom) {
+
+ dims.iProjAngles = parProjGeom->getProjectionAngleCount();
+ dims.iProjDets = parProjGeom->getDetectorCount();
+ dims.fDetScale = parProjGeom->getDetectorWidth() / fPixelSize;
+
+ ok = m_pAlgo->setGeometry(dims, parProjGeom->getProjectionAngles());
+
+ } else if (fanProjGeom) {
+
+ dims.iProjAngles = fanProjGeom->getProjectionAngleCount();
+ dims.iProjDets = fanProjGeom->getDetectorCount();
+ dims.fDetScale = fanProjGeom->getDetectorWidth() / fPixelSize;
+ float fOriginSourceDistance = fanProjGeom->getOriginSourceDistance();
+ float fOriginDetectorDistance = fanProjGeom->getOriginDetectorDistance();
+
+ const float* angles = fanProjGeom->getProjectionAngles();
+
+ astraCUDA::SFanProjection* projs;
+ projs = new astraCUDA::SFanProjection[dims.iProjAngles];
+
+ float fSrcX0 = 0.0f;
+ float fSrcY0 = -fOriginSourceDistance / fPixelSize;
+ float fDetUX0 = dims.fDetScale;
+ float fDetUY0 = 0.0f;
+ float fDetSX0 = dims.iProjDets * fDetUX0 / -2.0f;
+ float fDetSY0 = fOriginDetectorDistance / fPixelSize;
+
+#define ROTATE0(name,i,alpha) do { projs[i].f##name##X = f##name##X0 * cos(alpha) - f##name##Y0 * sin(alpha); projs[i].f##name##Y = f##name##X0 * sin(alpha) + f##name##Y0 * cos(alpha); } while(0)
+ for (unsigned int i = 0; i < dims.iProjAngles; ++i) {
+ ROTATE0(Src, i, angles[i]);
+ ROTATE0(DetS, i, angles[i]);
+ ROTATE0(DetU, i, angles[i]);
+ }
+
+#undef ROTATE0
+
+ ok = m_pAlgo->setFanGeometry(dims, projs);
+ delete[] projs;
+
+ } else if (fanVecProjGeom) {
+
+ dims.iProjAngles = fanVecProjGeom->getProjectionAngleCount();
+ dims.iProjDets = fanVecProjGeom->getDetectorCount();
+ dims.fDetScale = fanVecProjGeom->getDetectorWidth() / fPixelSize;
+
+ const astraCUDA::SFanProjection* projs;
+ projs = fanVecProjGeom->getProjectionVectors();
+
+ // Rescale projs to fPixelSize == 1
+
+ astraCUDA::SFanProjection* scaledProjs = new astraCUDA::SFanProjection[dims.iProjAngles];
+#define SCALE(name,i,alpha) do { scaledProjs[i].f##name##X = projs[i].f##name##X * alpha; scaledProjs[i].f##name##Y = projs[i].f##name##Y * alpha; } while (0)
+ for (unsigned int i = 0; i < dims.iProjAngles; ++i) {
+ SCALE(Src,i,1.0f/fPixelSize);
+ SCALE(DetS,i,1.0f/fPixelSize);
+ SCALE(DetU,i,1.0f/fPixelSize);
+ }
+
+ ok = m_pAlgo->setFanGeometry(dims, scaledProjs);
+
+ delete[] scaledProjs;
+
+ } else {
+
+ ASTRA_ASSERT(false);
+
+ }
+ if (!ok) return false;
+
+
+ if (m_bUseReconstructionMask)
+ ok &= m_pAlgo->enableVolumeMask();
+ if (!ok) return false;
+ if (m_bUseSinogramMask)
+ ok &= m_pAlgo->enableSinogramMask();
+ if (!ok) return false;
+
+ const float *pfTOffsets = m_pSinogram->getGeometry()->getExtraDetectorOffset();
+ if (pfTOffsets)
+ ok &= m_pAlgo->setTOffsets(pfTOffsets);
+ if (!ok) return false;
+
+ ok &= m_pAlgo->init();
+ if (!ok) return false;
+
+
+ return true;
+}
+
+//----------------------------------------------------------------------------------------
+// Iterate
+void CCudaReconstructionAlgorithm2D::run(int _iNrIterations)
+{
+ // check initialized
+ ASTRA_ASSERT(m_bIsInitialized);
+
+ bool ok = true;
+ const CVolumeGeometry2D& volgeom = *m_pReconstruction->getGeometry();
+
+ if (!m_bAlgoInit) {
+
+ ok = setupGeometry();
+ ASTRA_ASSERT(ok);
+
+ ok = m_pAlgo->allocateBuffers();
+ ASTRA_ASSERT(ok);
+
+ m_bAlgoInit = true;
+ }
+
+ float fPixelSize = volgeom.getPixelLengthX();
+ float fSinogramScale = 1.0f/(fPixelSize*fPixelSize);
+
+ ok = m_pAlgo->copyDataToGPU(m_pSinogram->getDataConst(), m_pSinogram->getGeometry()->getDetectorCount(), fSinogramScale,
+ m_pReconstruction->getDataConst(), volgeom.getGridColCount(),
+ m_bUseReconstructionMask ? m_pReconstructionMask->getDataConst() : 0, volgeom.getGridColCount(),
+ m_bUseSinogramMask ? m_pSinogramMask->getDataConst() : 0, m_pSinogram->getGeometry()->getDetectorCount());
+
+ ASTRA_ASSERT(ok);
+
+ if (m_bUseMinConstraint)
+ ok &= m_pAlgo->setMinConstraint(m_fMinValue);
+ if (m_bUseMaxConstraint)
+ ok &= m_pAlgo->setMaxConstraint(m_fMaxValue);
+
+ ok &= m_pAlgo->iterate(_iNrIterations);
+ ASTRA_ASSERT(ok);
+
+ ok &= m_pAlgo->getReconstruction(m_pReconstruction->getData(),
+ volgeom.getGridColCount());
+
+ ASTRA_ASSERT(ok);
+}
+
+void CCudaReconstructionAlgorithm2D::signalAbort()
+{
+ if (m_bIsInitialized && m_pAlgo) {
+ m_pAlgo->signalAbort();
+ }
+}
+
+bool CCudaReconstructionAlgorithm2D::getResidualNorm(float32& _fNorm)
+{
+ if (!m_bIsInitialized || !m_pAlgo)
+ return false;
+
+ _fNorm = m_pAlgo->computeDiffNorm();
+
+ return true;
+}
+
+} // namespace astra
+
+#endif // ASTRA_CUDA