livetrax/gtk2_ardour/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 <fftw3.h>

#include <gdkmm/color.h>

#include <string>

class FFTGraph;

class FFTResult
{
	public:

		~FFTResult();

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

		int length() const { return _dataSize; }

		float avgAt(int x);
		float maxAt(int x);
		float minAt(int x);

		float minimum() const { return _minimum; }
		float maximum() const { return _maximum; }

		Gdk::Color get_color() const { return _color; }

	private:
		FFTResult(FFTGraph *graph, Gdk::Color color, std::string trackname);

		int 	_averages;

		float*	_data_avg;
		float*  _data_max;
		float*  _data_min;

		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 */