quantum/process_keycode/process_music.c

   1 #include "process_music.h"
   2
   3 #ifdef AUDIO_ENABLE
   4 #include "process_audio.h"
   5 #endif
   6 #if defined(MIDI_ENABLE) && defined(MIDI_BASIC)
   7 #include "process_midi.h"
   8 #endif
   9
  10 #if defined(AUDIO_ENABLE) || (defined(MIDI_ENABLE) && defined(MIDI_BASIC))
  11
  12 bool music_activated = false;
  13 uint8_t music_starting_note = 0x0C;
  14 int music_offset = 7;
  15
  16 // music sequencer
  17 static bool music_sequence_recording = false;
  18 static bool music_sequence_recorded = false;
  19 static bool music_sequence_playing = false;
  20 static uint8_t music_sequence[16] = {0};
  21 static uint8_t music_sequence_count = 0;
  22 static uint8_t music_sequence_position = 0;
  23
  24 static uint16_t music_sequence_timer = 0;
  25 static uint16_t music_sequence_interval = 100;
  26
  27 static void music_noteon(uint8_t note) {
  28     #ifdef AUDIO_ENABLE
  29     process_audio_noteon(note);
  30     #endif
  31     #if defined(MIDI_ENABLE) && defined(MIDI_BASIC)
  32     process_midi_basic_noteon(note);
  33     #endif
  34 }
  35
  36 static void music_noteoff(uint8_t note) {
  37     #ifdef AUDIO_ENABLE
  38     process_audio_noteoff(note);
  39     #endif
  40     #if defined(MIDI_ENABLE) && defined(MIDI_BASIC)
  41     process_midi_basic_noteoff(note);
  42     #endif
  43 }
  44
  45 static void music_all_notes_off(void) {
  46     #ifdef AUDIO_ENABLE
  47     process_audio_stop_all_notes();
  48     #endif
  49     #if defined(MIDI_ENABLE) && defined(MIDI_BASIC)
  50     process_midi_basic_stop_all_notes();
  51     #endif
  52 }
  53
  54 bool process_music(uint16_t keycode, keyrecord_t *record) {
  55
  56     if (keycode == MU_ON && record->event.pressed) {
  57         music_on();
  58         return false;
  59     }
  60
  61     if (keycode == MU_OFF && record->event.pressed) {
  62         music_off();
  63         return false;
  64     }
  65
  66     if (keycode == MU_TOG && record->event.pressed) {
  67         if (music_activated)
  68         {
  69             music_off();
  70         }
  71         else
  72         {
  73             music_on();
  74         }
  75         return false;
  76     }
  77
  78     if (music_activated) {
  79
  80       if (keycode == KC_LCTL && record->event.pressed) { // Start recording
  81         music_all_notes_off();
  82         music_sequence_recording = true;
  83         music_sequence_recorded = false;
  84         music_sequence_playing = false;
  85         music_sequence_count = 0;
  86         return false;
  87       }
  88
  89       if (keycode == KC_LALT && record->event.pressed) { // Stop recording/playing
  90         music_all_notes_off();
  91         if (music_sequence_recording) { // was recording
  92           music_sequence_recorded = true;
  93         }
  94         music_sequence_recording = false;
  95         music_sequence_playing = false;
  96         return false;
  97       }
  98
  99       if (keycode == KC_LGUI && record->event.pressed && music_sequence_recorded) { // Start playing
 100         music_all_notes_off();
 101         music_sequence_recording = false;
 102         music_sequence_playing = true;
 103         music_sequence_position = 0;
 104         music_sequence_timer = 0;
 105         return false;
 106       }
 107
 108       if (keycode == KC_UP) {
 109         if (record->event.pressed)
 110             music_sequence_interval-=10;
 111         return false;
 112       }
 113
 114       if (keycode == KC_DOWN) {
 115         if (record->event.pressed)
 116             music_sequence_interval+=10;
 117         return false;
 118       }
 119
 120       #define MUSIC_MODE_GUITAR
 121
 122       #ifdef MUSIC_MODE_CHROMATIC
 123       uint8_t note = (music_starting_note + record->event.key.col + music_offset - 3)+12*(MATRIX_ROWS - record->event.key.row);
 124       #elif defined(MUSIC_MODE_GUITAR)
 125       uint8_t note = (music_starting_note + record->event.key.col + music_offset + 32)+5*(MATRIX_ROWS - record->event.key.row);
 126       #elif defined(MUSIC_MODE_VIOLIN)
 127       uint8_t note = (music_starting_note + record->event.key.col + music_offset + 32)+7*(MATRIX_ROWS - record->event.key.row);
 128       #else
 129       uint8_t note = (music_starting_note + SCALE[record->event.key.col + music_offset] - 3)+12*(MATRIX_ROWS - record->event.key.row);
 130       #endif
 131
 132       if (record->event.pressed) {
 133         music_noteon(note);
 134         if (music_sequence_recording) {
 135           music_sequence[music_sequence_count] = note;
 136           music_sequence_count++;
 137         }
 138       } else {
 139         music_noteoff(note);
 140       }
 141
 142       if (keycode < 0xFF) // ignores all normal keycodes, but lets RAISE, LOWER, etc through
 143         return false;
 144     }
 145   return true;
 146 }
 147
 148 bool is_music_on(void) {
 149     return (music_activated != 0);
 150 }
 151
 152 void music_toggle(void) {
 153     if (!music_activated) {
 154         music_on();
 155     } else {
 156         music_off();
 157     }
 158 }
 159
 160 void music_on(void) {
 161     music_activated = 1;
 162     music_on_user();
 163 }
 164
 165 void music_off(void) {
 166     music_activated = 0;
 167     music_all_notes_off();
 168 }
 169
 170 void matrix_scan_music(void) {
 171   if (music_sequence_playing) {
 172     if ((music_sequence_timer == 0) || (timer_elapsed(music_sequence_timer) > music_sequence_interval)) {
 173       music_sequence_timer = timer_read();
 174       uint8_t prev_note = music_sequence[(music_sequence_position - 1 < 0)?(music_sequence_position - 1 + music_sequence_count):(music_sequence_position - 1)];
 175       uint8_t next_note = music_sequence[music_sequence_position];
 176       music_noteoff(prev_note);
 177       music_noteon(next_note);
 178       music_sequence_position = (music_sequence_position + 1) % music_sequence_count;
 179     }
 180   }
 181 }
 182
 183 __attribute__ ((weak))
 184 void music_on_user() {}
 185
 186 __attribute__ ((weak))
 187 void music_scale_user() {}
 188
 189 #endif // defined(AUDIO_ENABLE) || (defined(MIDI_ENABLE) && defined(MIDI_BASIC))