remove disabled code

[qmk_firmware.git] / quantum / process_keycode / process_midi.c

diff --git a/quantum/process_keycode/process_midi.c b/quantum/process_keycode/process_midi.c
index 577dad43acabd89f4934d1c9bfbd7941ad7b4b9d..2ce7418ea7ec46004ebaa8bda910f71a0a4031e9 100644 (file)
--- a/quantum/process_keycode/process_midi.c
+++ b/quantum/process_keycode/process_midi.c
@@ -1,68 +1,106 @@
 #include "process_midi.h"
 
-bool midi_activated = false;
-uint8_t midi_starting_note = 0x0C;
-int midi_offset = 7;
+typedef union {
+  uint16_t raw;
+  struct {
+    uint8_t octave   :4;
+    uint8_t velocity :4;
+    uint8_t channel  :4;
+  };
+} midi_config_t;
 
-bool process_midi(uint16_t keycode, keyrecord_t *record) {
-    if (keycode == MI_ON && record->event.pressed) {
-      midi_activated = true;
-#ifdef AUDIO_ENABLE
-      music_scale_user();
-#endif
-      return false;
-    }
+midi_config_t midi_config;
 
-    if (keycode == MI_OFF && record->event.pressed) {
-      midi_activated = false;
-      midi_send_cc(&midi_device, 0, 0x7B, 0);
-      return false;
-    }
+#define MIDI_INVALID_NOTE 0xFF
 
-    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);
+#define MIDI_TONE_COUNT (MIDI_TONE_MAX - MIDI_TONE_MIN + 1)
+static uint8_t tone_status[MIDI_TONE_COUNT];
 
-      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);
-      }
+inline uint8_t compute_velocity(uint8_t setting)
+{
+    return (setting + 1) * (128 / (MIDI_VELOCITY_MAX - MIDI_VELOCITY_MIN + 1));
+}
 
-      if (keycode < 0xFF) // ignores all normal keycodes, but lets RAISE, LOWER, etc through
-        return false;
+void midi_init(void)
+{
+    midi_config.octave = MI_OCT_0 - MIDI_OCTAVE_MIN;
+    midi_config.velocity = (MIDI_VELOCITY_MAX - MIDI_VELOCITY_MIN);
+    midi_config.channel = 0;
+    #ifdef MIDI_USE_NOTE_ON_ARRAY
+    notes_on.length = 0;
+    #else
+    for (uint8_t i = 0; i < MIDI_TONE_COUNT; i++)
+    {
+        tone_status[i] = MIDI_INVALID_NOTE;
     }
-  return true;
+    #endif
+}
+
+bool process_midi(uint16_t keycode, keyrecord_t *record)
+{
+    switch (keycode) {
+        case MIDI_TONE_MIN ... MIDI_TONE_MAX:
+        {
+            uint8_t channel = midi_config.channel;
+            uint8_t tone = keycode - MIDI_TONE_MIN;
+            uint8_t velocity = compute_velocity(midi_config.velocity);
+            if (record->event.pressed) {
+                uint8_t note = 12 * midi_config.octave + tone;
+                midi_send_noteon(&midi_device, channel, note, velocity);
+                dprintf("midi noteon channel:%d note:%d velocity:%d\n", channel, note, velocity);
+                tone_status[tone] = note;
+            }
+            else {
+                uint8_t note = tone_status[tone];
+                if (note != MIDI_INVALID_NOTE)
+                {
+                    midi_send_noteoff(&midi_device, channel, note, velocity);
+                    dprintf("midi noteoff channel:%d note:%d velocity:%d\n", channel, note, velocity);
+                }
+                tone_status[tone] = MIDI_INVALID_NOTE;
+            }
+            return false;
+        }
+        case MIDI_OCTAVE_MIN ... MIDI_OCTAVE_MAX:
+            if (record->event.pressed)
+                midi_config.octave = keycode - MIDI_OCTAVE_MIN;
+            return false;
+        case MI_OCTD:
+            if (record->event.pressed && midi_config.octave > 0)
+                midi_config.octave--;
+            return false;
+        case MI_OCTU:
+            if (record->event.pressed && midi_config.octave < (MIDI_OCTAVE_MAX - MIDI_OCTAVE_MIN))
+                midi_config.octave++;
+            return false;
+        case MIDI_VELOCITY_MIN ... MIDI_VELOCITY_MAX:
+            if (record->event.pressed)
+                midi_config.velocity = keycode - MIDI_VELOCITY_MIN;
+            return false;
+        case MI_VELD:
+            if (record->event.pressed && midi_config.velocity > 0)
+                midi_config.velocity--;
+            return false;
+        case MI_VELU:
+            if (record->event.pressed)
+                midi_config.velocity++;
+            return false;
+        case MIDI_CHANNEL_MIN ... MIDI_CHANNEL_MAX:
+            if (record->event.pressed)
+                midi_config.channel = keycode - MIDI_CHANNEL_MIN;
+            return false;
+        case MI_CHD:
+            if (record->event.pressed)
+                midi_config.channel--;
+            return false;
+        case MI_CHU:
+            if (record->event.pressed)
+                midi_config.channel++;
+            return false;
+        case MI_SUS:
+            //TODO
+            return false;
+    };
+
+    return true;
 }