From b2fc6c70434674d74551c3a6c01ffb3233499312 Mon Sep 17 00:00:00 2001
From: Willem Jan Palenstijn <WillemJan.Palenstijn@uantwerpen.be>
Date: Mon, 1 Jul 2013 22:34:11 +0000
Subject: Update version to 1.3

---
 src/CudaSartAlgorithm.cpp | 136 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 src/CudaSartAlgorithm.cpp

(limited to 'src/CudaSartAlgorithm.cpp')

diff --git a/src/CudaSartAlgorithm.cpp b/src/CudaSartAlgorithm.cpp
new file mode 100644
index 0000000..610793f
--- /dev/null
+++ b/src/CudaSartAlgorithm.cpp
@@ -0,0 +1,136 @@
+/*
+-----------------------------------------------------------------------
+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/CudaSartAlgorithm.h"
+
+#include "../cuda/2d/sart.h"
+
+using namespace std;
+
+namespace astra {
+
+// type of the algorithm, needed to register with CAlgorithmFactory
+std::string CCudaSartAlgorithm::type = "SART_CUDA";
+
+//----------------------------------------------------------------------------------------
+// Constructor
+CCudaSartAlgorithm::CCudaSartAlgorithm() 
+{
+	m_bIsInitialized = false;
+	CCudaReconstructionAlgorithm2D::_clear();
+}
+
+//----------------------------------------------------------------------------------------
+// Destructor
+CCudaSartAlgorithm::~CCudaSartAlgorithm() 
+{
+	// The actual work is done by ~CCudaReconstructionAlgorithm2D
+}
+
+//---------------------------------------------------------------------------------------
+// Initialize - Config
+bool CCudaSartAlgorithm::initialize(const Config& _cfg)
+{
+	ASTRA_ASSERT(_cfg.self);
+	ConfigStackCheck<CAlgorithm> CC("CudaSartAlgorithm", this, _cfg);
+
+	m_bIsInitialized = CCudaReconstructionAlgorithm2D::initialize(_cfg);
+
+	if (!m_bIsInitialized)
+		return false;
+
+	astraCUDA::SART *sart = new astraCUDA::SART();
+
+	m_pAlgo = sart;
+	m_bAlgoInit = false;
+
+	// projection order
+	int projectionCount = m_pSinogram->getGeometry()->getProjectionAngleCount();
+	int* projectionOrder = NULL;
+	string projOrder = _cfg.self->getOption("ProjectionOrder", "random");
+	CC.markOptionParsed("ProjectionOrder");
+	if (projOrder == "sequential") {
+		projectionOrder = new int[projectionCount];
+		for (int i = 0; i < projectionCount; i++) {
+			projectionOrder[i] = i;
+		}
+		sart->setProjectionOrder(projectionOrder, projectionCount);
+		delete[] projectionOrder;
+	} else if (projOrder == "random") {
+		projectionOrder = new int[projectionCount];
+		for (int i = 0; i < projectionCount; i++) {
+			projectionOrder[i] = i;
+		}
+		for (int i = 0; i < projectionCount-1; i++) {
+			int k = (rand() % (projectionCount - i));
+			int t = projectionOrder[i];
+			projectionOrder[i] = projectionOrder[i + k];
+			projectionOrder[i + k] = t;
+		}
+		sart->setProjectionOrder(projectionOrder, projectionCount);
+		delete[] projectionOrder;
+	} else if (projOrder == "custom") {
+		vector<float32> projOrderList = _cfg.self->getOptionNumericalArray("ProjectionOrderList");
+		projectionOrder = new int[projOrderList.size()];
+		for (int i = 0; i < projOrderList.size(); i++) {
+			projectionOrder[i] = static_cast<int>(projOrderList[i]);
+		}
+		sart->setProjectionOrder(projectionOrder, projectionCount);
+		delete[] projectionOrder;
+		CC.markOptionParsed("ProjectionOrderList");
+	}
+
+
+
+	return true;
+}
+
+//---------------------------------------------------------------------------------------
+// Initialize - C++
+bool CCudaSartAlgorithm::initialize(CProjector2D* _pProjector,
+                                     CFloat32ProjectionData2D* _pSinogram, 
+                                     CFloat32VolumeData2D* _pReconstruction,
+                                     int _iGPUindex, int _iDetectorSuperSampling)
+{
+	m_bIsInitialized = CCudaReconstructionAlgorithm2D::initialize(_pProjector, _pSinogram, _pReconstruction, _iGPUindex, _iDetectorSuperSampling, 1);
+
+	if (!m_bIsInitialized)
+		return false;
+
+	m_pAlgo = new astraCUDA::SART();
+	m_bAlgoInit = false;
+
+	return true;
+}
+
+
+} // namespace astra
+
+#endif // ASTRA_CUDA
-- 
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