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-rw-r--r--quantum/process_keycode/process_music.c171
1 files changed, 171 insertions, 0 deletions
diff --git a/quantum/process_keycode/process_music.c b/quantum/process_keycode/process_music.c
new file mode 100644
index 0000000000..c8f3ddb900
--- /dev/null
+++ b/quantum/process_keycode/process_music.c
@@ -0,0 +1,171 @@
+#include "process_music.h"
+
+bool music_activated = false;
+uint8_t starting_note = 0x0C;
+int offset = 7;
+
+// music sequencer
+static bool music_sequence_recording = false;
+static bool music_sequence_playing = false;
+static float music_sequence[16] = {0};
+static uint8_t music_sequence_count = 0;
+static uint8_t music_sequence_position = 0;
+
+static uint16_t music_sequence_timer = 0;
+static uint16_t music_sequence_interval = 100;
+
+bool process_music(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 == MU_ON && record->event.pressed) {
+ music_on();
+ return false;
+ }
+
+ if (keycode == MU_OFF && record->event.pressed) {
+ music_off();
+ return false;
+ }
+
+ if (keycode == MU_TOG && record->event.pressed) {
+ if (music_activated)
+ {
+ music_off();
+ }
+ else
+ {
+ music_on();
+ }
+ return false;
+ }
+
+ if (keycode == MUV_IN && record->event.pressed) {
+ voice_iterate();
+ music_scale_user();
+ return false;
+ }
+
+ if (keycode == MUV_DE && record->event.pressed) {
+ voice_deiterate();
+ music_scale_user();
+ return false;
+ }
+
+ if (music_activated) {
+
+ if (keycode == KC_LCTL && record->event.pressed) { // Start recording
+ stop_all_notes();
+ music_sequence_recording = true;
+ music_sequence_playing = false;
+ music_sequence_count = 0;
+ return false;
+ }
+
+ if (keycode == KC_LALT && record->event.pressed) { // Stop recording/playing
+ stop_all_notes();
+ music_sequence_recording = false;
+ music_sequence_playing = false;
+ return false;
+ }
+
+ if (keycode == KC_LGUI && record->event.pressed) { // Start playing
+ stop_all_notes();
+ music_sequence_recording = false;
+ music_sequence_playing = true;
+ music_sequence_position = 0;
+ music_sequence_timer = 0;
+ return false;
+ }
+
+ if (keycode == KC_UP) {
+ if (record->event.pressed)
+ music_sequence_interval-=10;
+ return false;
+ }
+
+ if (keycode == KC_DOWN) {
+ if (record->event.pressed)
+ music_sequence_interval+=10;
+ return false;
+ }
+
+ float freq = ((float)220.0)*pow(2.0, -5.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row));
+ if (record->event.pressed) {
+ play_note(freq, 0xF);
+ if (music_sequence_recording) {
+ music_sequence[music_sequence_count] = freq;
+ music_sequence_count++;
+ }
+ } else {
+ stop_note(freq);
+ }
+
+ if (keycode < 0xFF) // ignores all normal keycodes, but lets RAISE, LOWER, etc through
+ return false;
+ }
+ return true;
+}
+
+bool is_music_on(void) {
+ return (music_activated != 0);
+}
+
+void music_toggle(void) {
+ if (!music_activated) {
+ music_on();
+ } else {
+ music_off();
+ }
+}
+
+void music_on(void) {
+ music_activated = 1;
+ music_on_user();
+}
+
+void music_off(void) {
+ music_activated = 0;
+ stop_all_notes();
+}
+
+
+__attribute__ ((weak))
+void music_on_user() {}
+
+__attribute__ ((weak))
+void audio_on_user() {}
+
+__attribute__ ((weak))
+void music_scale_user() {}
+
+void matrix_scan_music(void) {
+ if (music_sequence_playing) {
+ if ((music_sequence_timer == 0) || (timer_elapsed(music_sequence_timer) > music_sequence_interval)) {
+ music_sequence_timer = timer_read();
+ stop_note(music_sequence[(music_sequence_position - 1 < 0)?(music_sequence_position - 1 + music_sequence_count):(music_sequence_position - 1)]);
+ play_note(music_sequence[music_sequence_position], 0xF);
+ music_sequence_position = (music_sequence_position + 1) % music_sequence_count;
+ }
+ }
+}