1 files changed, 143 insertions, 0 deletions

diff --git a/keyboards/comet46/keymaps/satt/action_pseudo_lut.c b/keyboards/comet46/keymaps/satt/action_pseudo_lut.c
new file mode 100644
index 000000000..4a7cb3a3a
--- /dev/null
+++ b/keyboards/comet46/keymaps/satt/action_pseudo_lut.c
@@ -0,0 +1,143 @@
+#include "quantum.h"
+#include "command.h"
+#include "action_pseudo_lut.h"
+
+static uint8_t send_key_shift_bit[SHIFT_BIT_SIZE];
+
+/*
+ * Pseudo layout action.
+ * This action converts a keycode in order to output the character according to the keymap you specified
+ * still your keyboard layout recognized wrongly on your OS.
+ * Memo: Using other layer keymap to get keycode
+ */
+void action_pseudo_lut(keyrecord_t *record, uint8_t base_keymap_id, const uint16_t (*keymap)[2]) {
+  uint8_t prev_shift;
+  uint16_t keycode;
+  uint16_t pseudo_keycode;
+
+  /* get keycode from keymap you specified */
+  keycode = keymap_key_to_keycode(base_keymap_id, record->event.key);
+
+  prev_shift = keyboard_report->mods & (MOD_BIT(KC_LSFT) | MOD_BIT(KC_RSFT));
+
+  if (record->event.pressed) {
+    /* when magic commands entered, keycode does not converted */
+    if (IS_COMMAND()) {
+      if (prev_shift) {
+        add_shift_bit(keycode);
+      }
+      register_code(keycode);
+      return;
+    }
+
+    if (prev_shift) {
+      pseudo_keycode = convert_keycode(keymap, keycode, true);
+      dprintf("pressed: %02X, converted: %04X\n", keycode, pseudo_keycode);
+      add_shift_bit(keycode);
+
+      if (IS_LSFT(pseudo_keycode)) {
+        register_code(QK_LSFT ^ pseudo_keycode);
+      } else {
+        /* delete shift mod temporarily */
+        del_mods(prev_shift);
+        send_keyboard_report();
+        register_code(pseudo_keycode);
+        add_mods(prev_shift);
+        send_keyboard_report();
+      }
+    } else {
+      pseudo_keycode = convert_keycode(keymap, keycode, false);
+      dprintf("pressed: %02X, converted: %04X\n", keycode, pseudo_keycode);
+
+      if (IS_LSFT(pseudo_keycode)) {
+        add_weak_mods(MOD_BIT(KC_LSFT));
+        send_keyboard_report();
+        register_code(QK_LSFT ^ pseudo_keycode);
+        /* on Windows, prevent key repeat to avoid unintended output */
+        unregister_code(QK_LSFT ^ pseudo_keycode);
+        del_weak_mods(MOD_BIT(KC_LSFT));
+        send_keyboard_report();
+      } else {
+        register_code(pseudo_keycode);
+      }
+    }
+  } else {
+    if (get_shift_bit(keycode)) {
+      del_shift_bit(keycode);
+      pseudo_keycode = convert_keycode(keymap, keycode, true);
+    } else {
+      pseudo_keycode = convert_keycode(keymap, keycode, false);
+    }
+    dprintf("released: %02X, converted: %04X\n", keycode, pseudo_keycode);
+
+    if (IS_LSFT(pseudo_keycode)) {
+      unregister_code(QK_LSFT ^ pseudo_keycode);
+    } else {
+      unregister_code(pseudo_keycode);
+    }
+  }
+}
+
+uint16_t convert_keycode(const uint16_t (*keymap)[2], uint16_t keycode, bool shift_modded)
+{
+  uint16_t pseudo_keycode;
+
+  switch (keycode) {
+    case KC_A ... KC_CAPSLOCK:
+      #if defined(__AVR__) 
+        if (shift_modded) {
+          pseudo_keycode = pgm_read_word(&keymap[keycode][1]);
+        } else {
+          pseudo_keycode = pgm_read_word(&keymap[keycode][0]);
+        }
+      #else
+        if (shift_modded) {
+          pseudo_keycode = keymap[keycode][1];
+        } else {
+          pseudo_keycode = keymap[keycode][0];
+        }
+      #endif
+      /* if undefined, use got keycode as it is */
+      if (pseudo_keycode == 0x00) {
+        if (shift_modded) {
+          pseudo_keycode = S(keycode);
+        } else {
+          pseudo_keycode = keycode;
+        }
+      }
+      break;
+    default:
+      if (shift_modded) {
+        pseudo_keycode = S(keycode);
+      } else {
+        pseudo_keycode = keycode;
+      }
+      break;
+  }
+  return pseudo_keycode;
+}
+
+uint8_t get_shift_bit(uint16_t keycode) {
+  if ((keycode >> 3) < SHIFT_BIT_SIZE) {
+    return send_key_shift_bit[keycode >> 3] & (1 << (keycode & 7));
+  } else {
+    dprintf("get_shift_bit: Can't get shift bit. keycode: %02X\n", keycode);
+    return 0;
+  }
+}
+
+void add_shift_bit(uint16_t keycode) {
+  if ((keycode >> 3) < SHIFT_BIT_SIZE) {
+    send_key_shift_bit[keycode >> 3] |= (1 << (keycode & 7));
+  } else {
+    dprintf("add_shift_bit: Can't add shift bit. keycode: %02X\n", keycode);
+  }
+}
+
+void del_shift_bit(uint16_t keycode) {
+  if ((keycode >> 3) < SHIFT_BIT_SIZE) {
+    send_key_shift_bit[keycode >> 3] &= ~(1 << (keycode & 7));
+  } else {
+    dprintf("del_shift_bit: Can't delete shift bit. keycode: %02X\n", keycode);
+  }
+}