summaryrefslogtreecommitdiff
path: root/quantum/process_keycode/process_audio.c
blob: fc0f23ee341c83450f5d6bf731084e4c03160ab7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
#include "audio.h"
#include "process_audio.h"

#ifndef VOICE_CHANGE_SONG
    #define VOICE_CHANGE_SONG SONG(VOICE_CHANGE_SOUND)
#endif
float voice_change_song[][2] = VOICE_CHANGE_SONG;

#ifndef PITCH_STANDARD_A
    #define PITCH_STANDARD_A 440.0f
#endif

#ifdef AUDIO_CLICKY
#ifdef AUDIO_CLICKY_ON
bool clicky_enable = true;
#else
bool clicky_enable = false;
#endif
#ifndef AUDIO_CLICKY_FREQ_DEFAULT
#define AUDIO_CLICKY_FREQ_DEFAULT 440.0f
#endif
#ifndef AUDIO_CLICKY_FREQ_MIN
#define AUDIO_CLICKY_FREQ_MIN 65.0f
#endif
#ifndef AUDIO_CLICKY_FREQ_MAX
#define AUDIO_CLICKY_FREQ_MAX 1500.0f
#endif
#ifndef AUDIO_CLICKY_FREQ_FACTOR
#define AUDIO_CLICKY_FREQ_FACTOR 1.18921f
#endif
#ifndef AUDIO_CLICKY_FREQ_RANDOMNESS
#define AUDIO_CLICKY_FREQ_RANDOMNESS 0.05f
#endif

float clicky_freq = AUDIO_CLICKY_FREQ_DEFAULT;
float clicky_song[][2]  = {{AUDIO_CLICKY_FREQ_DEFAULT, 3}, {AUDIO_CLICKY_FREQ_DEFAULT, 1}}; // 3 and 1 --> durations

#ifndef NO_MUSIC_MODE
extern bool music_activated;
extern bool midi_activated;
#endif

void clicky_play(void) {
#ifndef NO_MUSIC_MODE
  if (music_activated || midi_activated) return;
#endif
  clicky_song[0][0] = 2.0f * clicky_freq * (1.0f + AUDIO_CLICKY_FREQ_RANDOMNESS * ( ((float)rand()) / ((float)(RAND_MAX)) ) );
  clicky_song[1][0] = clicky_freq * (1.0f + AUDIO_CLICKY_FREQ_RANDOMNESS * ( ((float)rand()) / ((float)(RAND_MAX)) ) );
  PLAY_SONG(clicky_song);
}
#endif

static float compute_freq_for_midi_note(uint8_t note)
{
    // https://en.wikipedia.org/wiki/MIDI_tuning_standard
    return pow(2.0, (note - 69) / 12.0) * PITCH_STANDARD_A;
}

bool process_audio(uint16_t keycode, keyrecord_t *record) {

    if (keycode == AU_ON && record->event.pressed) {
      audio_on();
      return false;
    }

    if (keycode == AU_OFF && record->event.pressed) {
      audio_off();
      return false;
    }

    if (keycode == AU_TOG && record->event.pressed) {
        if (is_audio_on()) {
            audio_off();
        } else {
            audio_on();
        }
        return false;
    }

    if (keycode == MUV_IN && record->event.pressed) {
        voice_iterate();
        PLAY_SONG(voice_change_song);
        return false;
    }

    if (keycode == MUV_DE && record->event.pressed) {
        voice_deiterate();
        PLAY_SONG(voice_change_song);
        return false;
    }

#ifdef AUDIO_CLICKY
    if (keycode == CLICKY_TOGGLE && record->event.pressed) { clicky_enable = !clicky_enable; }

    if (keycode == CLICKY_RESET && record->event.pressed) { clicky_freq = AUDIO_CLICKY_FREQ_DEFAULT; }

    if (keycode == CLICKY_UP && record->event.pressed) {
      float new_freq = clicky_freq * AUDIO_CLICKY_FREQ_FACTOR;
      if (new_freq < AUDIO_CLICKY_FREQ_MAX) {
        clicky_freq = new_freq;
      }
    }
    if (keycode == CLICKY_TOGGLE && record->event.pressed) {
      float new_freq = clicky_freq / AUDIO_CLICKY_FREQ_FACTOR;
      if (new_freq > AUDIO_CLICKY_FREQ_MIN) {
        clicky_freq = new_freq;
      }
      }


    if ( clicky_enable ) {
      if (record->event.pressed) {
        stop_all_notes();
        clicky_play();;
      }
    }
#endif // AUDIO_CLICKY

    return true;
}

void process_audio_noteon(uint8_t note) {
    play_note(compute_freq_for_midi_note(note), 0xF);
}

void process_audio_noteoff(uint8_t note) {
    stop_note(compute_freq_for_midi_note(note));
}

void process_audio_all_notes_off(void) {
    stop_all_notes();
}

__attribute__ ((weak))
void audio_on_user() {}