41 lines
970 B
C++
41 lines
970 B
C++
#pragma once
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#include <cstdint>
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#include <gui/gui.hpp>
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namespace music_visualizer {
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static constexpr int BAND_COUNT = 24;
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static constexpr int PROBE_COUNT = 3;
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static constexpr int ANALYSIS_SIZE = 512;
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struct Probe {
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double coeff;
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double cosine;
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double sine;
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};
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struct State {
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uint8_t levels[BAND_COUNT];
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uint8_t peaks[BAND_COUNT];
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uint8_t peak_hold[BAND_COUNT];
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int sample_rate;
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int ring_pos;
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int ring_fill;
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int samples_since_analyze;
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int16_t ring[ANALYSIS_SIZE];
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double window[ANALYSIS_SIZE];
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Probe probes[BAND_COUNT][PROBE_COUNT];
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};
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void reset(State& state);
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void tick(State& state);
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void feed_pcm(State& state, const int16_t* pcm, int frames, int channels, int sample_rate);
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void render(uint32_t* pixels, int bw, int bh, const gui::Rect& rect,
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const State& state, gui::Color accent, gui::Color accent_dark,
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gui::Color track_bg, gui::Color border);
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} // namespace music_visualizer
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