diff options
Diffstat (limited to 'matlab/mex')
| -rwxr-xr-x | matlab/mex/astra_mex_direct_c.cpp | 332 |
1 files changed, 332 insertions, 0 deletions
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; +} + + |