127 lines
4.3 KiB
C++
127 lines
4.3 KiB
C++
/***************************************************************************
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* Copyright (C) 2008-2017 by Andrzej Rybczak *
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* electricityispower@gmail.com *
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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 *
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* Free Software Foundation, Inc., *
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#ifndef NCMPCPP_VISUALIZER_H
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#define NCMPCPP_VISUALIZER_H
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#include "config.h"
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#ifdef ENABLE_VISUALIZER
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#include <boost/date_time/posix_time/posix_time_types.hpp>
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#include "curses/window.h"
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#include "interfaces.h"
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#include "screens/screen.h"
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#include "utility/sample_buffer.h"
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#ifdef HAVE_FFTW3_H
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# include <fftw3.h>
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#endif
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struct Visualizer: Screen<NC::Window>, Tabbable
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{
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Visualizer();
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virtual void switchTo() override;
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virtual void resize() override;
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virtual std::wstring title() override;
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virtual ScreenType type() override { return ScreenType::Visualizer; }
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virtual void update() override;
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virtual void scroll(NC::Scroll) override { }
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virtual int windowTimeout() override;
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virtual void mouseButtonPressed(MEVENT) override { }
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virtual bool isLockable() override { return true; }
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virtual bool isMergable() override { return true; }
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void Clear();
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void OpenDataSource();
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void CloseDataSource();
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void ToggleVisualizationType();
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void FindOutputID();
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void ResetAutoScaleMultiplier();
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private:
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void DrawSoundWave(const int16_t *, ssize_t, size_t, size_t);
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void DrawSoundWaveStereo(const int16_t *, const int16_t *, ssize_t, size_t);
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void DrawSoundWaveFill(const int16_t *, ssize_t, size_t, size_t);
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void DrawSoundWaveFillStereo(const int16_t *, const int16_t *, ssize_t, size_t);
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void DrawSoundEllipse(const int16_t *, ssize_t, size_t, size_t);
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void DrawSoundEllipseStereo(const int16_t *, const int16_t *, ssize_t, size_t);
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# ifdef HAVE_FFTW3_H
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void DrawFrequencySpectrum(const int16_t *, ssize_t, size_t, size_t);
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void DrawFrequencySpectrumStereo(const int16_t *, const int16_t *, ssize_t, size_t);
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void ApplyWindow(double *, const int16_t *, ssize_t);
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void GenLogspace();
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double Bin2Hz(size_t);
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double Interpolate(size_t, size_t);
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# endif // HAVE_FFTW3_H
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void InitVisualization();
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void (Visualizer::*draw)(const int16_t *, ssize_t, size_t, size_t);
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void (Visualizer::*drawStereo)(const int16_t *, const int16_t *, ssize_t, size_t);
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int m_output_id;
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boost::posix_time::ptime m_timer;
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int m_source_fd;
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std::vector<int16_t> m_rendered_samples;
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std::vector<int16_t> m_incoming_samples;
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SampleBuffer m_buffered_samples;
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size_t m_sample_consumption_rate;
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size_t m_sample_consumption_rate_up_ctr;
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size_t m_sample_consumption_rate_dn_ctr;
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double m_auto_scale_multiplier;
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# ifdef HAVE_FFTW3_H
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size_t m_fftw_results;
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double *m_fftw_input;
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fftw_complex *m_fftw_output;
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fftw_plan m_fftw_plan;
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const uint32_t DFT_NONZERO_SIZE;
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const uint32_t DFT_TOTAL_SIZE;
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const double DYNAMIC_RANGE;
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const double HZ_MIN;
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const double HZ_MAX;
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const double GAIN;
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const std::wstring SMOOTH_CHARS;
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std::vector<double> m_dft_logspace;
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std::vector<std::pair<size_t, double>> m_bar_heights;
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std::vector<double> m_freq_magnitudes;
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# endif // HAVE_FFTW3_H
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};
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extern Visualizer *myVisualizer;
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#endif // ENABLE_VISUALIZER
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#endif // NCMPCPP_VISUALIZER_H
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/* vim: set tabstop=4 softtabstop=4 shiftwidth=4 noexpandtab : */
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