136 lines
3.4 KiB
C
136 lines
3.4 KiB
C
#include "audio.h"
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#include "process_audio.h"
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#ifndef VOICE_CHANGE_SONG
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#define VOICE_CHANGE_SONG SONG(VOICE_CHANGE_SOUND)
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#endif
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float voice_change_song[][2] = VOICE_CHANGE_SONG;
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#ifndef PITCH_STANDARD_A
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#define PITCH_STANDARD_A 440.0f
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#endif
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#ifdef AUDIO_CLICKY
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#ifdef AUDIO_CLICKY_ON
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bool clicky_enable = true;
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#else
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bool clicky_enable = false;
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#endif
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#ifndef AUDIO_CLICKY_FREQ_DEFAULT
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#define AUDIO_CLICKY_FREQ_DEFAULT 440.0f
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#endif
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#ifndef AUDIO_CLICKY_FREQ_MIN
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#define AUDIO_CLICKY_FREQ_MIN 65.0f
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#endif
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#ifndef AUDIO_CLICKY_FREQ_MAX
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#define AUDIO_CLICKY_FREQ_MAX 1500.0f
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#endif
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#ifndef AUDIO_CLICKY_FREQ_FACTOR
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#define AUDIO_CLICKY_FREQ_FACTOR 1.18921f
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#endif
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#ifndef AUDIO_CLICKY_FREQ_RANDOMNESS
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#define AUDIO_CLICKY_FREQ_RANDOMNESS 0.05f
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#endif
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float clicky_freq = AUDIO_CLICKY_FREQ_DEFAULT;
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float clicky_song[][2] = {{AUDIO_CLICKY_FREQ_DEFAULT, 3}, {AUDIO_CLICKY_FREQ_DEFAULT, 1}}; // 3 and 1 --> durations
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#ifndef NO_MUSIC_MODE
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extern bool music_activated;
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extern bool midi_activated;
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#endif
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void clicky_play(void) {
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#ifndef NO_MUSIC_MODE
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if (music_activated || midi_activated) return;
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#endif
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clicky_song[0][0] = 2.0f * clicky_freq * (1.0f + AUDIO_CLICKY_FREQ_RANDOMNESS * ( ((float)rand()) / ((float)(RAND_MAX)) ) );
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clicky_song[1][0] = clicky_freq * (1.0f + AUDIO_CLICKY_FREQ_RANDOMNESS * ( ((float)rand()) / ((float)(RAND_MAX)) ) );
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PLAY_SONG(clicky_song);
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}
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#endif
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static float compute_freq_for_midi_note(uint8_t note)
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{
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// https://en.wikipedia.org/wiki/MIDI_tuning_standard
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return pow(2.0, (note - 69) / 12.0) * PITCH_STANDARD_A;
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}
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bool process_audio(uint16_t keycode, keyrecord_t *record) {
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if (keycode == AU_ON && record->event.pressed) {
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audio_on();
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return false;
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}
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if (keycode == AU_OFF && record->event.pressed) {
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audio_off();
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return false;
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}
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if (keycode == AU_TOG && record->event.pressed) {
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if (is_audio_on()) {
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audio_off();
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} else {
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audio_on();
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}
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return false;
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}
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if (keycode == MUV_IN && record->event.pressed) {
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voice_iterate();
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PLAY_SONG(voice_change_song);
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return false;
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}
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if (keycode == MUV_DE && record->event.pressed) {
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voice_deiterate();
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PLAY_SONG(voice_change_song);
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return false;
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}
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#ifdef AUDIO_CLICKY
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if (keycode == CLICKY_TOGGLE && record->event.pressed) { clicky_enable = !clicky_enable; }
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if (keycode == CLICKY_RESET && record->event.pressed) { clicky_freq = AUDIO_CLICKY_FREQ_DEFAULT; }
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if (keycode == CLICKY_UP && record->event.pressed) {
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float new_freq = clicky_freq * AUDIO_CLICKY_FREQ_FACTOR;
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if (new_freq < AUDIO_CLICKY_FREQ_MAX) {
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clicky_freq = new_freq;
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}
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}
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if (keycode == CLICKY_TOGGLE && record->event.pressed) {
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float new_freq = clicky_freq / AUDIO_CLICKY_FREQ_FACTOR;
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if (new_freq > AUDIO_CLICKY_FREQ_MIN) {
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clicky_freq = new_freq;
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}
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}
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if ( (clicky_enable && keycode != CLICKY_TOGGLE) || (!clicky_enable && keycode == CLICKY_TOGGLE) ) {
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if (record->event.pressed) {
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stop_all_notes();
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clicky_play();;
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}
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}
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#endif // AUDIO_CLICKY
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return true;
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}
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void process_audio_noteon(uint8_t note) {
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play_note(compute_freq_for_midi_note(note), 0xF);
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}
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void process_audio_noteoff(uint8_t note) {
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stop_note(compute_freq_for_midi_note(note));
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}
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void process_audio_all_notes_off(void) {
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stop_all_notes();
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}
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__attribute__ ((weak))
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void audio_on_user() {}
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