From 4fb2d1e361823667c261333ab7eaccd8079b2459 Mon Sep 17 00:00:00 2001
From: Michael Lelli <michael.lelli@steelseries.com>
Date: Wed, 9 Aug 2017 22:51:01 -0500
Subject: [PATCH] Ignore capabilities reported by an XInput device

---
 .../ControllerInterface/XInput/XInput.cpp     | 29 +++++++------------
 1 file changed, 10 insertions(+), 19 deletions(-)

diff --git a/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp b/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp
index 3d8650820e..0b5cbad358 100644
--- a/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp
@@ -109,46 +109,37 @@ void DeInit()
 
 Device::Device(const XINPUT_CAPABILITIES& caps, u8 index) : m_subtype(caps.SubType), m_index(index)
 {
-  // XInputGetCaps seems to always claim all capabilities are supported
-  // but I will leave all this stuff in, incase m$ fixes xinput up a bit
+  // XInputGetCaps can be broken on some devices, so we'll just ignore it
+  // and assume all gamepad + vibration capabilities are supported
 
   // get supported buttons
   for (int i = 0; i != sizeof(named_buttons) / sizeof(*named_buttons); ++i)
   {
-    // Guide button is never reported in caps
-    if ((named_buttons[i].bitmask & caps.Gamepad.wButtons) ||
-        ((named_buttons[i].bitmask & XINPUT_GAMEPAD_GUIDE) && haveGuideButton))
+    // Only add guide button if we have the 100 ordinal XInputGetState
+    if (!(named_buttons[i].bitmask & XINPUT_GAMEPAD_GUIDE) || haveGuideButton)
       AddInput(new Button(i, m_state_in.Gamepad.wButtons));
   }
 
   // get supported triggers
   for (int i = 0; i != sizeof(named_triggers) / sizeof(*named_triggers); ++i)
   {
-    // BYTE val = (&caps.Gamepad.bLeftTrigger)[i];  // should be max value / MSDN lies
-    if ((&caps.Gamepad.bLeftTrigger)[i])
-      AddInput(new Trigger(i, (&m_state_in.Gamepad.bLeftTrigger)[i], 255));
+    AddInput(new Trigger(i, (&m_state_in.Gamepad.bLeftTrigger)[i], 255));
   }
 
   // get supported axes
   for (int i = 0; i != sizeof(named_axes) / sizeof(*named_axes); ++i)
   {
-    // SHORT val = (&caps.Gamepad.sThumbLX)[i];  // xinput doesn't give the range / MSDN is a liar
-    if ((&caps.Gamepad.sThumbLX)[i])
-    {
-      const SHORT& ax = (&m_state_in.Gamepad.sThumbLX)[i];
+    const SHORT& ax = (&m_state_in.Gamepad.sThumbLX)[i];
 
-      // each axis gets a negative and a positive input instance associated with it
-      AddInput(new Axis(i, ax, -32768));
-      AddInput(new Axis(i, ax, 32767));
-    }
+    // each axis gets a negative and a positive input instance associated with it
+    AddInput(new Axis(i, ax, -32768));
+    AddInput(new Axis(i, ax, 32767));
   }
 
   // get supported motors
   for (int i = 0; i != sizeof(named_motors) / sizeof(*named_motors); ++i)
   {
-    // WORD val = (&caps.Vibration.wLeftMotorSpeed)[i]; // should be max value / nope, more lies
-    if ((&caps.Vibration.wLeftMotorSpeed)[i])
-      AddOutput(new Motor(i, this, (&m_state_out.wLeftMotorSpeed)[i], 65535));
+    AddOutput(new Motor(i, this, (&m_state_out.wLeftMotorSpeed)[i], 65535));
   }
 
   ZeroMemory(&m_state_in, sizeof(m_state_in));