/*
 * * Copyright (C) 2006-2011 Anders Brander <anders@brander.dk>, 
 * * Anders Kvist <akv@lnxbx.dk> and Klaus Post <klauspost@gmail.com>
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#ifndef fftwindow_h__
#define fftwindow_h__
#include "floatimageplane.h"

namespace RawStudio {
namespace FFTFilter {

class FFTWindow
{
public:
  FFTWindow(int _w, int _h);
  virtual ~FFTWindow(void);
  FloatImagePlane analysis;
  FloatImagePlane synthesis;
  void createHalfCosineWindow(int ox, int oy);
  void createRaisedCosineWindow(int ox, int oy);
  void createSqrtHalfCosineWindow(int ox, int oy);
  void applyAnalysisWindow(FloatImagePlane *image, FloatImagePlane *dst); 
  void applySynthesisWindow( FloatImagePlane *image ); // Inplace, written back to image
private:
  void applyAnalysisWindowSSE( FloatImagePlane *image, FloatImagePlane *dst );
  float createWindow( FloatImagePlane &window, int ox, float* wx);  // Returns sum
  bool analysisIsFlat; 
  bool synthesisIsFlat; 
  bool SSEAvailable;
};

}} // namespace RawStudio::FFTFilter

#endif // fftwindow_h__