xinput: bind UI, vibration, hotplug (#620)

## Link to GitHub Issue or related Pull Request, if one exists
#616 

## Description of change
`Naive` button is now called `Naive/XInput` and detects XInput
controllers

Add vibration output as "Lights"

Add proper hotplug support and multiple controllers

Fix misc bugs on x86

## Testing
I tested with two xbox controllers.

src/spice2x/cfg/analog.cpp

@@ -91,7 +91,9 @@ std::string Analog::getDisplayString(rawinput::RawInputManager *manager) {
             }
         }
         case rawinput::XINPUT_GAMEPAD:
-            return xinput::get_analog_string(static_cast<xinput::XInputAnalogEnum>(index)) + " (" + device->desc + ")";
+            return fmt::format("{} ({})",
+                xinput::get_analog_string(static_cast<xinput::XInputAnalogEnum>(index)),
+                device->desc);
         case rawinput::DESTROYED:
             return "Device unplugged (" + indexString + ")";
         default:

src/spice2x/cfg/api.cpp

@@ -927,7 +927,7 @@ void GameAPI::Lights::sortLightsWithCategory(
 }
 
 
-void GameAPI::Lights::writeLight(rawinput::Device *device, int index, float value) {
+void GameAPI::Lights::writeLight(rawinput::RawInputManager *manager, rawinput::Device *device, int index, float value) {
 
     // check device
     if (!device) {
@@ -1014,6 +1014,18 @@ void GameAPI::Lights::writeLight(rawinput::Device *device, int index, float valu
             }
             break;
         }
+        case rawinput::XINPUT_GAMEPAD: {
+            assert(reinterpret_cast<uintptr_t>(device->handle) < XUSER_MAX_COUNT);
+            const auto player = static_cast<uint8_t>(reinterpret_cast<uintptr_t>(device->handle));
+            if (index < static_cast<int>(xinput::XInputOutputEnum::COUNT)) {
+                manager->XINPUT_MGR->set_output_state(
+                    player, static_cast<xinput::XInputOutputEnum>(index), value);
+                // no need to set output_pending; xinput output handled immediately
+            } else {
+                log_warning("api", "invalid xinput light index: {}", index);
+            }
+            break;
+        }
         default:
             break;
     }
@@ -1039,9 +1051,9 @@ void GameAPI::Lights::writeLight(rawinput::RawInputManager *manager, Light &ligh
 
         // write state
         if (light.override_enabled) {
-            writeLight(device, light.getIndex(), light.override_state);
+            writeLight(manager, device, light.getIndex(), light.override_state);
         } else {
-            writeLight(device, light.getIndex(), value);
+            writeLight(manager, device, light.getIndex(), value);
         }
     }
 

src/spice2x/cfg/api.h

@@ -135,7 +135,7 @@ namespace GameAPI {
 
         void sortLightsWithCategory(std::vector<Light> *lights, const std::initializer_list<LightAndCategory> list);
 
-        void writeLight(rawinput::Device *device, int index, float value);
+        void writeLight(rawinput::RawInputManager *manager, rawinput::Device *device, int index, float value);
         void writeLight(rawinput::RawInputManager *manager, Light &light, float value);
         void writeLight(std::unique_ptr<rawinput::RawInputManager> &manager, Light &light, float value);
 

src/spice2x/cfg/button.cpp

@@ -418,7 +418,9 @@ std::string Button::getDisplayString(rawinput::RawInputManager* manager) {
             case rawinput::PIUIO_DEVICE:
                 return "PIUIO " + vKeyString;
             case rawinput::XINPUT_GAMEPAD:
-                return xinput::get_button_string(static_cast<xinput::XInputButtonEnum>(vKey));
+                return fmt::format("{} ({})",
+                    xinput::get_button_string(static_cast<xinput::XInputButtonEnum>(vKey)),
+                    device->desc);
             case rawinput::DESTROYED:
                 return "Device unplugged (" + vKeyString + ")";
             default:

src/spice2x/cfg/light.cpp

@@ -85,6 +85,15 @@ std::string Light::getDisplayString(rawinput::RawInputManager* manager) {
 
             return "Invalid SMX Dedicab Light (" + index_string + ")";
         }
+        case rawinput::XINPUT_GAMEPAD: {
+            if (index < static_cast<size_t>(xinput::XInputOutputEnum::COUNT)) {
+                return fmt::format("{} ({})",
+                    xinput::get_output_string(static_cast<xinput::XInputOutputEnum>(index)),
+                    device->desc);
+            }
+
+            return "Invalid XInput Gamepad Light (" + index_string + ")";
+        }
         case rawinput::DESTROYED:
             return "Unplugged device (" + index_string + ")";
         default: