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-rw-r--r--quantum/process_keycode/process_midi.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/quantum/process_keycode/process_midi.c b/quantum/process_keycode/process_midi.c
new file mode 100644
index 0000000000..8784e64f36
--- /dev/null
+++ b/quantum/process_keycode/process_midi.c
@@ -0,0 +1,66 @@
+#include "process_midi.h"
+
+bool midi_activated = false;
+uint8_t midi_starting_note = 0x0C;
+int midi_offset = 7;
+
+bool process_midi(uint16_t keycode, keyrecord_t *record) {
+ if (keycode == MI_ON && record->event.pressed) {
+ midi_activated = true;
+ music_scale_user();
+ return false;
+ }
+
+ if (keycode == MI_OFF && record->event.pressed) {
+ midi_activated = false;
+ midi_send_cc(&midi_device, 0, 0x7B, 0);
+ return false;
+ }
+
+ if (midi_activated) {
+ if (record->event.key.col == (MATRIX_COLS - 1) && record->event.key.row == (MATRIX_ROWS - 1)) {
+ if (record->event.pressed) {
+ midi_starting_note++; // Change key
+ midi_send_cc(&midi_device, 0, 0x7B, 0);
+ }
+ return false;
+ }
+ if (record->event.key.col == (MATRIX_COLS - 2) && record->event.key.row == (MATRIX_ROWS - 1)) {
+ if (record->event.pressed) {
+ midi_starting_note--; // Change key
+ midi_send_cc(&midi_device, 0, 0x7B, 0);
+ }
+ return false;
+ }
+ if (record->event.key.col == (MATRIX_COLS - 3) && record->event.key.row == (MATRIX_ROWS - 1) && record->event.pressed) {
+ midi_offset++; // Change scale
+ midi_send_cc(&midi_device, 0, 0x7B, 0);
+ return false;
+ }
+ if (record->event.key.col == (MATRIX_COLS - 4) && record->event.key.row == (MATRIX_ROWS - 1) && record->event.pressed) {
+ midi_offset--; // Change scale
+ midi_send_cc(&midi_device, 0, 0x7B, 0);
+ return false;
+ }
+ // basic
+ // uint8_t note = (midi_starting_note + SCALE[record->event.key.col + midi_offset])+12*(MATRIX_ROWS - record->event.key.row);
+ // advanced
+ // uint8_t note = (midi_starting_note + record->event.key.col + midi_offset)+12*(MATRIX_ROWS - record->event.key.row);
+ // guitar
+ uint8_t note = (midi_starting_note + record->event.key.col + midi_offset)+5*(MATRIX_ROWS - record->event.key.row);
+ // violin
+ // uint8_t note = (midi_starting_note + record->event.key.col + midi_offset)+7*(MATRIX_ROWS - record->event.key.row);
+
+ if (record->event.pressed) {
+ // midi_send_noteon(&midi_device, record->event.key.row, midi_starting_note + SCALE[record->event.key.col], 127);
+ midi_send_noteon(&midi_device, 0, note, 127);
+ } else {
+ // midi_send_noteoff(&midi_device, record->event.key.row, midi_starting_note + SCALE[record->event.key.col], 127);
+ midi_send_noteoff(&midi_device, 0, note, 127);
+ }
+
+ if (keycode < 0xFF) // ignores all normal keycodes, but lets RAISE, LOWER, etc through
+ return false;
+ }
+ return true;
+} \ No newline at end of file