Files
ncmpcpp/src/screens/visualizer.h
2020-12-14 13:39:12 +01:00

119 lines
4.0 KiB
C++

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