/* ----------------------------------------------------------------------- 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/>. ----------------------------------------------------------------------- $Id$ */ #ifndef FFT_H #define FFT_H #include <cufft.h> #include <cuda.h> #include "fbp_filters.h" bool allocateComplexOnDevice(int _iProjectionCount, int _iDetectorCount, cufftComplex ** _ppDevComplex); bool freeComplexOnDevice(cufftComplex * _pDevComplex); bool uploadComplexArrayToDevice(int _iProjectionCount, int _iDetectorCount, cufftComplex * _pHostComplexSource, cufftComplex * _pDevComplexTarget); bool runCudaFFT(int _iProjectionCount, const float * _pfDevRealSource, int _iSourcePitch, int _iProjDets, int _iFFTRealDetectorCount, int _iFFTFourierDetectorCount, cufftComplex * _pDevTargetComplex); bool runCudaIFFT(int _iProjectionCount, const cufftComplex* _pDevSourceComplex, float * _pfRealTarget, int _iTargetPitch, int _iProjDets, int _iFFTRealDetectorCount, int _iFFTFourierDetectorCount); void applyFilter(int _iProjectionCount, int _iFreqBinCount, cufftComplex * _pSinogram, cufftComplex * _pFilter); int calcFFTFourSize(int _iFFTRealSize); void genFilter(E_FBPFILTER _eFilter, float _fD, int _iProjectionCount, cufftComplex * _pFilter, int _iFFTRealDetectorCount, int _iFFTFourierDetectorCount, float _fParameter = -1.0f); void genIdenFilter(int _iProjectionCount, cufftComplex * _pFilter, int _iFFTRealDetectorCount, int _iFFTFourierDetectorCount); #endif /* FFT_H */