engine: client: keys: reserve some more buttons as gamepad buttons according to latest SDL2 GameController header

engine/client/keys.c

@@ -123,13 +123,13 @@ keyname_t keynames[] =
 {"JOY4" , K_JOY4 , ""},
 {"C_BUTTON", K_C_BUTTON, ""},
 {"Z_BUTTON", K_Z_BUTTON, ""},
-{"AUX20", K_AUX20, ""}, // generic
+{"MISC_BUTTON", K_MISC_BUTTON, ""},
-{"AUX21", K_AUX21, ""},
+{"PADDLE1", K_PADDLE1_BUTTON, ""},
-{"AUX22", K_AUX22, ""},
+{"PADDLE2", K_PADDLE2_BUTTON, ""},
-{"AUX23", K_AUX23, ""},
+{"PADDLE3", K_PADDLE3_BUTTON, ""},
-{"AUX24", K_AUX24, ""},
+{"PADDLE4", K_PADDLE4_BUTTON, ""},
-{"AUX25", K_AUX25, ""},
+{"TOUCHPAD", K_TOUCHPAD, ""},
-{"AUX26", K_AUX26, ""},
+{"AUX26", K_AUX26, ""}, // generic
 {"AUX27", K_AUX27, ""},
 {"AUX28", K_AUX28, ""},
 {"AUX29", K_AUX29, ""},

engine/keydefs.h

@@ -145,11 +145,23 @@
 #define K_DPAD_RIGHT  K_AUX19
 
 #define K_AUX20			226
+#define K_MISC_BUTTON	K_AUX20 // Xbox Series X share button, PS5 microphone button, Nintendo Switch Pro capture button
+
 #define K_AUX21			227
+#define K_PADDLE1_BUTTON K_AUX21 // Xbox Elite paddle P1-P4
+
 #define K_AUX22			228
+#define K_PADDLE2_BUTTON K_AUX22
+
 #define K_AUX23			229
+#define K_PADDLE3_BUTTON K_AUX23
+
 #define K_AUX24			230
+#define K_PADDLE4_BUTTON K_AUX24
+
 #define K_AUX25			231
+#define K_TOUCHPAD		K_AUX25 // PS4/PS5 touchpad button
+
 #define K_AUX26			232
 #define K_AUX27			233
 #define K_AUX28			234