LIBRETRO: add uae4all_joystick opt

Author: Apaczer

libretro/core/core-mapper.cpp

@@ -44,7 +44,7 @@ int pauseg=0; //enter_gui
 
 
 //JOY
-
+int JOYSTICK_EMULATED=-1;
 //MOUSE
 int gmx,gmy; //gui mouse
 int mouse_wu=0,mouse_wd=0;
@@ -105,7 +105,7 @@ void read_joystick(int nr, unsigned int *dir, int *button)
     *dir = 0;
     *button = 0;
 
-    if ((nr == 0) && (SHOWKEY==1) || (pauseg==1) || (MOUSE_EMULATED==1))
+    if ((nr == 0) && (SHOWKEY==1) || (pauseg==1) || (MOUSE_EMULATED==1) || !(JOYSTICK_EMULATED))
         return;
 
     if ((nr == 1) && (!second_joystick_enable))
@@ -459,7 +459,7 @@ int Retro_PollEvent()
     if(SHOWKEY==-1 && pauseg==0)
     { 
         // if emulation running
-        if(!input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK))
+        if(!(input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK)) || !(JOYSTICK_EMULATED) && (MOUSE_EMULATED==-1))
             Process_keyboard();
 
         if(second_joystick_enable)

libretro/core/libretro-core.cpp

@@ -35,6 +35,8 @@ extern int mainMenu_throttle;
 extern int mainMenu_vpos;
 extern int mainMenu_frameskip;
 
+extern int JOYSTICK_EMULATED;
+
 extern void DISK_GUI_change (void);
 
 static unsigned msg_interface_version = 0;
@@ -161,6 +163,7 @@ void retro_set_environment(retro_environment_t cb)
       { "uae4all_frameskip",   "Frameskip; 0|1|2|3|4|5|auto", },
       { "uae4all_memchip",   "Chip RAM; default|512 KB|1 MB|1.5 MB|2 MB", },
       { "uae4all_vpos",   "Adjust screen Vertically; default|0|8|16|24|32|40", },
+      { "uae4all_joystick",   "Joystick emulation; on|off", },
       { NULL, NULL },
    };
 
@@ -307,6 +310,14 @@ void update_prefs_retrocfg(void)
       }
    }
 
+   var.key = "uae4all_joystick";
+   var.value = NULL;
+
+   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
+   {
+      if (strcmp(var.value, "on")  == 0) JOYSTICK_EMULATED = 1;
+      if (strcmp(var.value, "off") == 0) JOYSTICK_EMULATED = 0;
+   }
 #if 0
 
    var.key = "uae4all_resolution";