summaryrefslogtreecommitdiffstats
path: root/src/CudaSartAlgorithm.cpp
blob: 8c0c6d7a094ec0ceb22c2dc99897f2001d1cc404 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
/*
-----------------------------------------------------------------------
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/>.

-----------------------------------------------------------------------
$Id$
*/

#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