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fft_result.h

/*
    Copyright (C) 2006 Paul Davis
      Written by Sampo Savolainen

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __ardour_fft_result_h
#define __ardour_fft_result_h

#include <ardour/types.h>
#include <fftw3.h>

#include <gdkmm/color.h>

#include <string>

class FFTGraph;

class FFTResult
{
      public:
            
            ~FFTResult();

            void analyzeWindow(float *window);
            void finalize();

            const int length() { return _dataSize; }

            float sampleAt(int x);
            
            const float minimum() { return _minimum; }
            const float maximum() { return _maximum; }
            
            const Gdk::Color get_color() { return _color; }
            
      private:
            FFTResult(FFTGraph *graph, Gdk::Color color, std::string trackname);
            
            int   _averages;

            float*      _data;
            float*      _work;

            int         _windowSize;
            int   _dataSize;

            float       _minimum;
            float       _maximum;

            FFTGraph *_graph;
            
            Gdk::Color _color;
            std::string _trackname;
            
      friend class FFTGraph;
};

#endif /* __ardour_fft_result_h */

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