From cc8e66754b1a5d0c11985cb0feb51ead49668744 Mon Sep 17 00:00:00 2001
From: tmk <nobody@nowhere>
Date: Tue, 2 Apr 2013 16:09:43 +0900
Subject: Refine ACT_LAYER and ACT_LAYER_TAP

- Remove ACT_LAYER_BITOP
---
 common/layer_switch.c | 122 +++++++++++++++++++++++++++-----------------------
 1 file changed, 67 insertions(+), 55 deletions(-)

(limited to 'common/layer_switch.c')

diff --git a/common/layer_switch.c b/common/layer_switch.c
index 359e6b9d84..9905741f48 100644
--- a/common/layer_switch.c
+++ b/common/layer_switch.c
@@ -7,94 +7,103 @@
 
 
 /* 
- * Default Layer (0-15)
+ * Default Layer State
  */
-uint8_t default_layer = 0;
+uint32_t default_layer_state = 0;
 
-void default_layer_set(uint8_t layer)
+static void default_layer_state_set(uint32_t state)
 {
-    debug("default_layer_set: ");
-    debug_dec(default_layer); debug(" to ");
-
-    default_layer = layer;
-
-    debug_dec(default_layer); debug("\n");
-
+    debug("default_layer_state: ");
+    default_layer_debug(); debug(" to ");
+    default_layer_state = state;
+    default_layer_debug(); debug("\n");
     clear_keyboard_but_mods(); // To avoid stuck keys
 }
 
-
-#ifndef NO_ACTION_LAYER
-/* 
- * Keymap Layer (0-15)
- */
-uint16_t keymap_stat = 0;
-
-/* return highest layer whose state is on */
-uint8_t keymap_get_layer(void)
+void default_layer_debug(void)
 {
-    return biton16(keymap_stat);
+    debug_hex32(default_layer_state);
+    debug("("); debug_dec(biton32(default_layer_state)); debug(")");
 }
 
-static void keymap_stat_set(uint16_t stat)
+void default_layer_set(uint8_t layer)
 {
-    debug("keymap: ");
-    keymap_debug(); debug(" to ");
+    default_layer_state_set(1UL<<layer);
+}
 
-    keymap_stat = stat;
+#ifndef NO_ACTION_LAYER
+void default_layer_or(uint32_t state)
+{
+    default_layer_state_set(default_layer_state | state);
+}
+void default_layer_and(uint32_t state)
+{
+    default_layer_state_set(default_layer_state & state);
+}
+void default_layer_xor(uint32_t state)
+{
+    default_layer_state_set(default_layer_state ^ state);
+}
+#endif
 
-    keymap_debug(); debug("\n");
 
-    clear_keyboard_but_mods(); // To avoid stuck keys
-}
+#ifndef NO_ACTION_LAYER
+/* 
+ * Keymap Layer State
+ */
+uint32_t layer_state = 0;
 
-void keymap_clear(void)
+static void layer_state_set(uint32_t state)
 {
-    keymap_stat_set(0);
+    debug("layer_state: ");
+    layer_debug(); debug(" to ");
+    layer_state = state;
+    layer_debug(); debug("\n");
+    clear_keyboard_but_mods(); // To avoid stuck keys
 }
 
-
-void keymap_set(uint16_t stat)
+void layer_clear(void)
 {
-    keymap_stat_set(stat);
+    layer_state_set(0);
 }
 
-void keymap_move(uint8_t layer)
+void layer_move(uint8_t layer)
 {
-    keymap_stat_set(1<<layer);
+    layer_state_set(1UL<<layer);
 }
 
-void keymap_on(uint8_t layer)
+void layer_on(uint8_t layer)
 {
-    keymap_stat_set(keymap_stat | (1<<layer));
+    layer_state_set(layer_state | (1UL<<layer));
 }
 
-void keymap_off(uint8_t layer)
+void layer_off(uint8_t layer)
 {
-    keymap_stat_set(keymap_stat & ~(1<<layer));
+    layer_state_set(layer_state & ~(1UL<<layer));
 }
 
-void keymap_invert(uint8_t layer)
+void layer_invert(uint8_t layer)
 {
-    keymap_stat_set(keymap_stat ^ (1<<layer));
+    layer_state_set(layer_state ^ (1UL<<layer));
 }
 
-void keymap_or(uint16_t stat)
+void layer_or(uint32_t state)
 {
-    keymap_stat_set(keymap_stat | stat);
+    layer_state_set(layer_state | state);
 }
-void keymap_and(uint16_t stat)
+void layer_and(uint32_t state)
 {
-    keymap_stat_set(keymap_stat & stat);
+    layer_state_set(layer_state & state);
 }
-void keymap_xor(uint16_t stat)
+void layer_xor(uint32_t state)
 {
-    keymap_stat_set(keymap_stat ^ stat);
+    layer_state_set(layer_state ^ state);
 }
 
-void keymap_debug(void)
+void layer_debug(void)
 {
-    debug_hex16(keymap_stat); debug("("); debug_dec(keymap_get_layer()); debug(")");
+    debug_hex32(layer_state);
+    debug("("); debug_dec(biton32(layer_state)); debug(")");
 }
 #endif
 
@@ -106,18 +115,21 @@ action_t layer_switch_get_action(key_t key)
     action.code = ACTION_TRANSPARENT;
 
 #ifndef NO_ACTION_LAYER
-    /* keymap: top layer first */
-    for (int8_t i = 15; i >= 0; i--) {
-        if (keymap_stat & (1<<i)) {
+    uint32_t layers = layer_state | default_layer_state;
+    /* check top layer first */
+    for (int8_t i = 31; i >= 0; i--) {
+        if (layers & (1UL<<i)) {
             action = action_for_key(i, key);
             if (action.code != ACTION_TRANSPARENT) {
                 return action;
             }
         }
     }
-#endif
-
-    /* default layer */
-    action = action_for_key(default_layer, key);
+    /* fall back to layer 0 */
+    action = action_for_key(0, key);
+    return action;
+#else
+    action = action_for_key(biton32(default_layer_state), key);
     return action;
+#endif
 }
-- 
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