From 1cc67c1e4d9b6b24c096f52d6f086a3f224ece8a Mon Sep 17 00:00:00 2001
From: Willem Jan Palenstijn <Willem.Jan.Palenstijn@cwi.nl>
Date: Wed, 7 Oct 2015 17:29:20 +0200
Subject: Add astra_mex_direct('FP3D'/'BP3D', ...)
---
build/linux/Makefile.in | 3 +-
matlab/mex/astra_mex_direct_c.cpp | 332 ++++++++++++++++++++++++++++++++++++++
matlab/tools/astra_mex_direct.m | 24 +++
3 files changed, 358 insertions(+), 1 deletion(-)
create mode 100755 matlab/mex/astra_mex_direct_c.cpp
create mode 100644 matlab/tools/astra_mex_direct.m
diff --git a/build/linux/Makefile.in b/build/linux/Makefile.in
index 2d862f2..abbebe2 100644
--- a/build/linux/Makefile.in
+++ b/build/linux/Makefile.in
@@ -232,7 +232,8 @@ MATLAB_MEX=\
matlab/mex/astra_mex_projector_c.$(MEXSUFFIX) \
matlab/mex/astra_mex_projector3d_c.$(MEXSUFFIX) \
matlab/mex/astra_mex_log_c.$(MEXSUFFIX) \
- matlab/mex/astra_mex_data3d_c.$(MEXSUFFIX)
+ matlab/mex/astra_mex_data3d_c.$(MEXSUFFIX) \
+ matlab/mex/astra_mex_direct_c.$(MEXSUFFIX)
OBJECT_DIRS = src/ tests/ cuda/2d/ cuda/3d/ matlab/mex/ ./
diff --git a/matlab/mex/astra_mex_direct_c.cpp b/matlab/mex/astra_mex_direct_c.cpp
new file mode 100755
index 0000000..94eb1cd
--- /dev/null
+++ b/matlab/mex/astra_mex_direct_c.cpp
@@ -0,0 +1,332 @@
+/*
+-----------------------------------------------------------------------
+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/>.
+
+-----------------------------------------------------------------------
+$Id$
+*/
+
+/** \file astra_mex_direct_c.cpp
+ *
+ * \brief Utility functions for low-overhead FP and BP calls.
+ */
+#include <mex.h>
+#include "mexHelpFunctions.h"
+#include "mexCopyDataHelpFunctions.h"
+#include "mexDataManagerHelpFunctions.h"
+
+#include <list>
+
+#include "astra/Globals.h"
+
+#include "astra/AstraObjectManager.h"
+
+#include "astra/Float32ProjectionData2D.h"
+#include "astra/Float32VolumeData2D.h"
+#include "astra/CudaProjector3D.h"
+#include "astra/Projector3D.h"
+#include "astra/Float32ProjectionData3DMemory.h"
+#include "astra/Float32VolumeData3DMemory.h"
+
+#include "astra/CudaForwardProjectionAlgorithm3D.h"
+
+#include "astra/CudaBackProjectionAlgorithm3D.h"
+
+using namespace std;
+using namespace astra;
+
+#define USE_MATLAB_UNDOCUMENTED
+
+
+class CFloat32CustomMemory_simple : public astra::CFloat32CustomMemory {
+public:
+ CFloat32CustomMemory_simple(float *ptr) { m_fPtr = ptr; }
+ ~CFloat32CustomMemory_simple() { }
+};
+
+#ifdef ASTRA_CUDA
+
+//-----------------------------------------------------------------------------------------
+/**
+ * projection = astra_mex_direct_c('FP3D', projector_id, volume);
+ * Both 'projection' and 'volume' are Matlab arrays.
+ */
+void astra_mex_direct_fp3d(int& nlhs, mxArray* plhs[], int& nrhs, const mxArray* prhs[])
+{
+ // TODO: Add an optional way of specifying extra options
+
+ if (nrhs < 3) {
+ mexErrMsgTxt("Not enough arguments. Syntax: astra_mex_direct_c('FP3D', projector_id, data)");
+ return;
+ }
+
+ int iPid = (int)(mxGetScalar(prhs[1]));
+ astra::CProjector3D* pProjector;
+ pProjector = astra::CProjector3DManager::getSingleton().get(iPid);
+ if (!pProjector) {
+ mexErrMsgTxt("Projector not found.");
+ return;
+ }
+ if (!pProjector->isInitialized()) {
+ mexErrMsgTxt("Projector not initialized.");
+ return;
+ }
+ bool isCuda = false;
+ if (dynamic_cast<CCudaProjector3D*>(pProjector))
+ isCuda = true;
+ if (!isCuda) {
+ mexErrMsgTxt("Only CUDA projectors are currently supported.");
+ return;
+ }
+
+ astra::CVolumeGeometry3D* pVolGeom = pProjector->getVolumeGeometry();
+ astra::CProjectionGeometry3D* pProjGeom = pProjector->getProjectionGeometry();
+
+ const mxArray* const data = prhs[2];
+ if (!checkDataType(data)) {
+ mexErrMsgTxt("Data must be single or double.");
+ return;
+ }
+
+ if (!checkDataSize(data, pVolGeom)) {
+ mexErrMsgTxt("The dimensions of the data do not match those specified in the geometry.");
+ return;
+ }
+
+
+ // Allocate input data
+ astra::CFloat32VolumeData3DMemory* pInput;
+ if (mxIsSingle(data)) {
+ astra::CFloat32CustomMemory* m = new CFloat32CustomMemory_simple((float *)mxGetData(data));
+ pInput = new astra::CFloat32VolumeData3DMemory(pVolGeom, m);
+ } else {
+ pInput = new astra::CFloat32VolumeData3DMemory(pVolGeom);
+ copyMexToCFloat32Array(data, pInput->getData(), pInput->getSize());
+ }
+
+
+ // Allocate output data
+ // If the input is single, we also allocate single output.
+ // Otherwise, double.
+ astra::CFloat32ProjectionData3DMemory* pOutput;
+ mxArray *pOutputMx;
+ if (mxIsSingle(data)) {
+ mwSize dims[3];
+ dims[0] = pProjGeom->getDetectorColCount();
+ dims[1] = pProjGeom->getProjectionCount();
+ dims[2] = pProjGeom->getDetectorRowCount();
+ pOutputMx = mxCreateNumericArray(3, dims, mxSINGLE_CLASS, mxREAL);
+
+ astra::CFloat32CustomMemory* m = new CFloat32CustomMemory_simple((float *)mxGetData(pOutputMx));
+ pOutput = new astra::CFloat32ProjectionData3DMemory(pProjGeom, m);
+ } else {
+ pOutput = new astra::CFloat32ProjectionData3DMemory(pProjGeom);
+ }
+
+ // Perform FP
+
+ astra::CCudaForwardProjectionAlgorithm3D* pAlg;
+ pAlg = new astra::CCudaForwardProjectionAlgorithm3D();
+ pAlg->initialize(pProjector, pOutput, pInput);
+
+ if (!pAlg->isInitialized()) {
+ mexErrMsgTxt("Error initializing algorithm.");
+ // TODO: Delete pOutputMx?
+ delete pAlg;
+ delete pInput;
+ delete pOutput;
+ return;
+ }
+
+ pAlg->run();
+
+ delete pAlg;
+
+
+ if (mxIsSingle(data)) {
+
+ } else {
+ pOutputMx = createEquivMexArray<mxDOUBLE_CLASS>(pOutput);
+ copyCFloat32ArrayToMex(pOutput->getData(), pOutputMx);
+ }
+ plhs[0] = pOutputMx;
+
+ delete pOutput;
+ delete pInput;
+}
+//-----------------------------------------------------------------------------------------
+/**
+ * projection = astra_mex_direct_c('BP3D', projector_id, volume);
+ * Both 'projection' and 'volume' are Matlab arrays.
+ */
+void astra_mex_direct_bp3d(int& nlhs, mxArray* plhs[], int& nrhs, const mxArray* prhs[])
+{
+ // TODO: Add an optional way of specifying extra options
+
+ if (nrhs < 3) {
+ mexErrMsgTxt("Not enough arguments. Syntax: astra_mex_direct_c('BP3D', projector_id, data)");
+ return;
+ }
+
+ int iPid = (int)(mxGetScalar(prhs[1]));
+ astra::CProjector3D* pProjector;
+ pProjector = astra::CProjector3DManager::getSingleton().get(iPid);
+ if (!pProjector) {
+ mexErrMsgTxt("Projector not found.");
+ return;
+ }
+ if (!pProjector->isInitialized()) {
+ mexErrMsgTxt("Projector not initialized.");
+ return;
+ }
+ bool isCuda = false;
+ if (dynamic_cast<CCudaProjector3D*>(pProjector))
+ isCuda = true;
+ if (!isCuda) {
+ mexErrMsgTxt("Only CUDA projectors are currently supported.");
+ return;
+ }
+
+ astra::CVolumeGeometry3D* pVolGeom = pProjector->getVolumeGeometry();
+ astra::CProjectionGeometry3D* pProjGeom = pProjector->getProjectionGeometry();
+
+ const mxArray* const data = prhs[2];
+ if (!checkDataType(data)) {
+ mexErrMsgTxt("Data must be single or double.");
+ return;
+ }
+
+ if (!checkDataSize(data, pProjGeom)) {
+ mexErrMsgTxt("The dimensions of the data do not match those specified in the geometry.");
+ return;
+ }
+
+
+ // Allocate input data
+ astra::CFloat32ProjectionData3DMemory* pInput;
+ if (mxIsSingle(data)) {
+ astra::CFloat32CustomMemory* m = new CFloat32CustomMemory_simple((float *)mxGetData(data));
+ pInput = new astra::CFloat32ProjectionData3DMemory(pProjGeom, m);
+ } else {
+ pInput = new astra::CFloat32ProjectionData3DMemory(pProjGeom);
+ copyMexToCFloat32Array(data, pInput->getData(), pInput->getSize());
+ }
+
+
+ // Allocate output data
+ // If the input is single, we also allocate single output.
+ // Otherwise, double.
+ astra::CFloat32VolumeData3DMemory* pOutput;
+ mxArray *pOutputMx;
+ if (mxIsSingle(data)) {
+ mwSize dims[3];
+ dims[0] = pVolGeom->getGridColCount();
+ dims[1] = pVolGeom->getGridRowCount();
+ dims[2] = pVolGeom->getGridSliceCount();
+ pOutputMx = mxCreateNumericArray(3, dims, mxSINGLE_CLASS, mxREAL);
+
+ astra::CFloat32CustomMemory* m = new CFloat32CustomMemory_simple((float *)mxGetData(pOutputMx));
+ pOutput = new astra::CFloat32VolumeData3DMemory(pVolGeom, m);
+ } else {
+ pOutput = new astra::CFloat32VolumeData3DMemory(pVolGeom);
+ }
+
+ // Perform BP
+
+ astra::CCudaBackProjectionAlgorithm3D* pAlg;
+ pAlg = new astra::CCudaBackProjectionAlgorithm3D();
+ pAlg->initialize(pProjector, pInput, pOutput);
+
+ if (!pAlg->isInitialized()) {
+ mexErrMsgTxt("Error initializing algorithm.");
+ // TODO: Delete pOutputMx?
+ delete pAlg;
+ delete pInput;
+ delete pOutput;
+ return;
+ }
+
+ pAlg->run();
+
+ delete pAlg;
+
+
+ if (mxIsSingle(data)) {
+
+ } else {
+ pOutputMx = createEquivMexArray<mxDOUBLE_CLASS>(pOutput);
+ copyCFloat32ArrayToMex(pOutput->getData(), pOutputMx);
+ }
+ plhs[0] = pOutputMx;
+
+ delete pOutput;
+ delete pInput;
+}
+
+#endif
+
+//-----------------------------------------------------------------------------------------
+
+static void printHelp()
+{
+ mexPrintf("Please specify a mode of operation.\n");
+ mexPrintf("Valid modes: FP3D, BP3D\n");
+}
+
+
+//-----------------------------------------------------------------------------------------
+/**
+ * ... = astra_mex_direct_c(mode,...);
+ */
+void mexFunction(int nlhs, mxArray* plhs[],
+ int nrhs, const mxArray* prhs[])
+{
+
+ // INPUT: Mode
+ string sMode;
+ if (1 <= nrhs) {
+ sMode = mexToString(prhs[0]);
+ } else {
+ printHelp();
+ return;
+ }
+
+#ifndef ASTRA_CUDA
+ mexErrMsgTxt("Only CUDA projectors are currently supported.");
+ return;
+#else
+
+ // 3D data
+ if (sMode == "FP3D") {
+ astra_mex_direct_fp3d(nlhs, plhs, nrhs, prhs);
+ } else if (sMode == "BP3D") {
+ astra_mex_direct_bp3d(nlhs, plhs, nrhs, prhs);
+ } else {
+ printHelp();
+ }
+#endif
+
+ return;
+}
+
+
diff --git a/matlab/tools/astra_mex_direct.m b/matlab/tools/astra_mex_direct.m
new file mode 100644
index 0000000..58c4fd2
--- /dev/null
+++ b/matlab/tools/astra_mex_direct.m
@@ -0,0 +1,24 @@
+function [varargout] = astra_mex_direct(varargin)
+%------------------------------------------------------------------------
+% Reference page in Help browser
+% <a href="matlab:docsearch('astra_mex_direct' )">astra_mex_data3d</a>.
+%------------------------------------------------------------------------
+%------------------------------------------------------------------------
+% This file is part of the ASTRA Toolbox
+%
+% Copyright: 2010-2015, iMinds-Vision Lab, University of Antwerp
+% 2014-2015, CWI, Amsterdam
+% License: Open Source under GPLv3
+% Contact: astra@uantwerpen.be
+% Website: http://sf.net/projects/astra-toolbox
+%------------------------------------------------------------------------
+% $Id$
+if nargout == 0
+ astra_mex_direct_c(varargin{:});
+ if exist('ans','var')
+ varargout{1} = ans;
+ end
+else
+ varargout = cell(1,nargout);
+ [varargout{:}] = astra_mex_direct_c(varargin{:});
+end
--
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