From 43a38c117405f99e3a1b498f899de4ba6d01a044 Mon Sep 17 00:00:00 2001
From: Willem Jan Palenstijn <Willem.Jan.Palenstijn@cwi.nl>
Date: Wed, 7 Oct 2015 18:14:39 +0200
Subject: Improve option passing through CudaProjector3D

Not all constructors were reading options from the projector.
Also allow passing GPUIndex via CudaProjector3D.

Thanks to Nicola Vigano for part of the patch.
---
 src/CudaForwardProjectionAlgorithm3D.cpp | 46 +++++++++++++++++++++-----------
 1 file changed, 31 insertions(+), 15 deletions(-)

(limited to 'src/CudaForwardProjectionAlgorithm3D.cpp')

diff --git a/src/CudaForwardProjectionAlgorithm3D.cpp b/src/CudaForwardProjectionAlgorithm3D.cpp
index 46dab12..6498885 100644
--- a/src/CudaForwardProjectionAlgorithm3D.cpp
+++ b/src/CudaForwardProjectionAlgorithm3D.cpp
@@ -71,6 +71,23 @@ CCudaForwardProjectionAlgorithm3D::~CCudaForwardProjectionAlgorithm3D()
 
 }
 
+//---------------------------------------------------------------------------------------
+void CCudaForwardProjectionAlgorithm3D::initializeFromProjector()
+{
+	m_iDetectorSuperSampling = 1;
+	m_iGPUIndex = -1;
+
+	CCudaProjector3D* pCudaProjector = dynamic_cast<CCudaProjector3D*>(m_pProjector);
+	if (!pCudaProjector) {
+		if (m_pProjector) {
+			ASTRA_WARN("non-CUDA Projector3D passed to FP3D_CUDA");
+		}
+	} else {
+		m_iDetectorSuperSampling = pCudaProjector->getDetectorSuperSampling();
+		m_iGPUIndex = pCudaProjector->getGPUIndex();
+	}
+}
+
 //---------------------------------------------------------------------------------------
 // Initialize - Config
 bool CCudaForwardProjectionAlgorithm3D::initialize(const Config& _cfg)
@@ -97,29 +114,21 @@ bool CCudaForwardProjectionAlgorithm3D::initialize(const Config& _cfg)
 
 	// optional: projector
 	node = _cfg.self.getSingleNode("ProjectorId");
-	CCudaProjector3D* pCudaProjector = 0;
 	m_pProjector = 0;
 	if (node) {
 		id = boost::lexical_cast<int>(node.getContent());
 		m_pProjector = CProjector3DManager::getSingleton().get(id);
-		pCudaProjector = dynamic_cast<CCudaProjector3D*>(CProjector3DManager::getSingleton().get(id));
-		m_pProjector = pCudaProjector;
-		if (!pCudaProjector) {
-			// TODO: Report
-		}
 	}
 	CC.markNodeParsed("ProjectorId");
 
-	// GPU number
-	m_iGPUIndex = (int)_cfg.self.getOptionNumerical("GPUindex", -1);
-	CC.markOptionParsed("GPUindex");
-
+	initializeFromProjector();
 
-	m_iDetectorSuperSampling = 1;
-	if (pCudaProjector)
-		m_iDetectorSuperSampling = pCudaProjector->getDetectorSuperSampling();
+	// Deprecated options
 	m_iDetectorSuperSampling = (int)_cfg.self.getOptionNumerical("DetectorSuperSampling", m_iDetectorSuperSampling);
+	m_iGPUIndex = (int)_cfg.self.getOptionNumerical("GPUindex", m_iGPUIndex);
 	CC.markOptionParsed("DetectorSuperSampling");
+	CC.markOptionParsed("GPUindex");
+
 
 	// success
 	m_bIsInitialized = check();
@@ -142,8 +151,15 @@ bool CCudaForwardProjectionAlgorithm3D::initialize(CProjector3D* _pProjector,
 	m_pProjections = _pProjections;
 	m_pVolume = _pVolume;
 
-	m_iDetectorSuperSampling = _iDetectorSuperSampling;
-	m_iGPUIndex = _iGPUindex;
+	CCudaProjector3D* pCudaProjector = dynamic_cast<CCudaProjector3D*>(m_pProjector);
+	if (!pCudaProjector) {
+		// TODO: Report
+		m_iDetectorSuperSampling = _iDetectorSuperSampling;
+		m_iGPUIndex = _iGPUindex;
+	} else {
+		m_iDetectorSuperSampling = pCudaProjector->getDetectorSuperSampling();
+		m_iGPUIndex = pCudaProjector->getGPUIndex();
+	}
 
 	// success
 	m_bIsInitialized = check();
-- 
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