ControllerEmu: Clamp results of trigger/slider states to prevent integer overflow later on.

Source/Core/InputCommon/ControllerEmu/ControlGroup/MixedTriggers.cpp

@@ -48,7 +48,7 @@ void MixedTriggers::GetState(u16* const digital, const u16* bitmasks, ControlSta
   {
     const ControlState button_value = ApplyDeadzone(controls[i]->control_ref->State(), deadzone);
     ControlState analog_value =
-        ApplyDeadzone(controls[trigger_count + i]->control_ref->State(), deadzone);
+        std::min(ApplyDeadzone(controls[trigger_count + i]->control_ref->State(), deadzone), 1.0);
 
     // Apply threshold:
     if (button_value > threshold)

Source/Core/InputCommon/ControllerEmu/ControlGroup/Slider.cpp

@@ -34,6 +34,6 @@ Slider::StateData Slider::GetState()
   const ControlState deadzone = m_deadzone_setting.GetValue() / 100;
   const ControlState state = controls[1]->control_ref->State() - controls[0]->control_ref->State();
 
-  return {ApplyDeadzone(state, deadzone)};
+  return {std::clamp(ApplyDeadzone(state, deadzone), -1.0, 1.0)};
 }
 }  // namespace ControllerEmu

Source/Core/InputCommon/ControllerEmu/ControlGroup/Triggers.cpp

@@ -28,7 +28,7 @@ Triggers::StateData Triggers::GetState()
 
   StateData result(trigger_count);
   for (size_t i = 0; i < trigger_count; ++i)
-    result.data[i] = ApplyDeadzone(controls[i]->control_ref->State(), deadzone);
+    result.data[i] = std::min(ApplyDeadzone(controls[i]->control_ref->State(), deadzone), 1.0);
 
   return result;
 }