define HAVE_KBDJOYPAD to block double raw kbd keys

Author: Apaczer

libretro/core/core-mapper.cpp

@@ -403,6 +403,56 @@ void Process_keyboard()
 
     if (KEYBOARD_EMULATED==1)
     {
+#ifdef HAVE_KBDJOYPAD
+        int i1 = 0;
+        int i2 = 0;
+        for(i=0;i<320;i++)
+        {
+            if (input_state_cb(0, RETRO_DEVICE_KEYBOARD, 0,i)){
+                Key_State[i]= 0x80;
+                if (i1 == 0) i1 = i;
+                else i2 = i;
+            } else
+                Key_State[i]= 0;
+        }
+        if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0,RETRO_DEVICE_ID_JOYPAD_MASK) && i1 && i2){
+                switch (i1) {
+                    case RETROK_LALT:
+                    case RETROK_LCTRL:
+                    case RETROK_LSHIFT:
+                    case RETROK_SPACE:
+                    case RETROK_TAB:
+                    case RETROK_BACKSPACE:
+                    case RETROK_PAGEUP:
+                    case RETROK_PAGEDOWN:
+                    case RETROK_RSHIFT:
+                    case RETROK_RCTRL:
+                    case RETROK_RETURN:
+                    case RETROK_ESCAPE:
+                        Key_State[i1]= 0;
+                    break;
+                }
+                switch (i2) {
+                    case RETROK_LALT:
+                    case RETROK_LCTRL:
+                    case RETROK_LSHIFT:
+                    case RETROK_SPACE:
+                    case RETROK_TAB:
+                    case RETROK_BACKSPACE:
+                    case RETROK_PAGEUP:
+                    case RETROK_PAGEDOWN:
+                    case RETROK_RSHIFT:
+                    case RETROK_RCTRL:
+                    case RETROK_RETURN:
+                    case RETROK_ESCAPE:
+                        Key_State[i2]= 0;
+                    break;
+                }
+        }
+    }
+    else
+    {
+#endif
         for(i=0;i<320;i++)
             Key_State[i]=input_state_cb(0, RETRO_DEVICE_KEYBOARD, 0,i) ? 0x80: 0;
     }