Libretro: Do not allow opposing directions

2018-06-13 21:19:59 +08:00 · 2018-06-13 21:19:59 +08:00 · 319a4869c7
parent 2c46522e59
commit 319a4869c7
1 changed files with 6 additions and 0 deletions
--- a/src/libretro/libretro.cpp
+++ b/src/libretro/libretro.cpp
@ -914,6 +914,12 @@ uint32_t systemReadJoypad(int which)
            J |= input_cb(which, RETRO_DEVICE_JOYPAD, 0, binds[i]) << i;
    }

+    // Do not allow opposing directions
+    if ((J & 0x30) == 0x30)
+        J &= ~(0x30);
+    else if ((J & 0xC0) == 0xC0)
+        J &= ~(0xC0);
+
    return J;
 }