95 lines
4 KiB
C++
95 lines
4 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// File : FFT.h
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///////////////////////////////////////////////////////////////////////////////////
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//
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// LumosQuad - A Lightning Generator
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// Copyright 2007
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// The University of North Carolina at Chapel Hill
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//
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///////////////////////////////////////////////////////////////////////////////////
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// The University of North Carolina at Chapel Hill makes no representations
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// about the suitability of this software for any purpose. It is provided
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// "as is" without express or implied warranty.
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//
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// Permission to use, copy, modify and distribute this software and its
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// documentation for educational, research and non-profit purposes, without
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// fee, and without a written agreement is hereby granted, provided that the
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// above copyright notice and the following three paragraphs appear in all
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// copies.
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//
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// THE UNIVERSITY OF NORTH CAROLINA SPECIFICALLY DISCLAIM ANY WARRANTIES,
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// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN
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// "AS IS" BASIS, AND THE UNIVERSITY OF NORTH CAROLINA HAS NO OBLIGATION TO
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// PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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//
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// Please send questions and comments about LumosQuad to kim@cs.unc.edu.
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//
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///////////////////////////////////////////////////////////////////////////////////
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//
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// This program uses OpenEXR, which has the following restrictions:
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//
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// Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
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// Digital Ltd. LLC
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Industrial Light & Magic nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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#ifndef FFT_H
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#define FFT_H
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#include <fftw3.h>
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#include <iostream>
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using namespace std;
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////////////////////////////////////////////////////////////////////
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/// \brief Wrapper class for FFTW
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////////////////////////////////////////////////////////////////////
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class FFT
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{
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public:
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FFT();
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virtual ~FFT();
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/// \brief convolve image and filter using FFTW
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///
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/// \param source source image
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/// \param kernel convolution kernel
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/// \param xSource width of source image
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/// \param ySource height of source image
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/// \param xKernel width of kernel
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/// \param yKernel height yidth of kernel
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///
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/// \return Returns the convolved image in the 'image' array. If the convolve fails, returns false
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static bool convolve(float* source, float* kernel, int xSource, int ySource, int xKernel, int yKernel);
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};
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#endif
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