input_engine: Pass VibrationStatus by const reference in SetRumble()

Avoids creating copies of the struct where not necessary.

src/common/input.h

@@ -266,11 +266,9 @@ class OutputDevice {
 public:
     virtual ~OutputDevice() = default;
 
-    virtual void SetLED([[maybe_unused]] LedStatus led_status) {
+    virtual void SetLED([[maybe_unused]] LedStatus led_status) {}
-        return;
-    }
 
-    virtual VibrationError SetVibration([[maybe_unused]] VibrationStatus vibration_status) {
+    virtual VibrationError SetVibration([[maybe_unused]] const VibrationStatus& vibration_status) {
         return VibrationError::NotSupported;
     }
 

src/input_common/drivers/gc_adapter.cpp

@@ -325,8 +325,8 @@ bool GCAdapter::GetGCEndpoint(libusb_device* device) {
     return true;
 }
 
-Common::Input::VibrationError GCAdapter::SetRumble(const PadIdentifier& identifier,
+Common::Input::VibrationError GCAdapter::SetRumble(
-                                                   const Common::Input::VibrationStatus vibration) {
+    const PadIdentifier& identifier, const Common::Input::VibrationStatus& vibration) {
     const auto mean_amplitude = (vibration.low_amplitude + vibration.high_amplitude) * 0.5f;
     const auto processed_amplitude =
         static_cast<u8>((mean_amplitude + std::pow(mean_amplitude, 0.3f)) * 0.5f * 0x8);

src/input_common/drivers/gc_adapter.h

@@ -28,7 +28,7 @@ public:
     ~GCAdapter() override;
 
     Common::Input::VibrationError SetRumble(
-        const PadIdentifier& identifier, const Common::Input::VibrationStatus vibration) override;
+        const PadIdentifier& identifier, const Common::Input::VibrationStatus& vibration) override;
 
     /// Used for automapping features
     std::vector<Common::ParamPackage> GetInputDevices() const override;

src/input_common/drivers/sdl_driver.cpp

@@ -491,8 +491,9 @@ std::vector<Common::ParamPackage> SDLDriver::GetInputDevices() const {
     }
     return devices;
 }
-Common::Input::VibrationError SDLDriver::SetRumble(const PadIdentifier& identifier,
+
-                                                   const Common::Input::VibrationStatus vibration) {
+Common::Input::VibrationError SDLDriver::SetRumble(
+    const PadIdentifier& identifier, const Common::Input::VibrationStatus& vibration) {
     const auto joystick =
         GetSDLJoystickByGUID(identifier.guid.Format(), static_cast<int>(identifier.port));
     const auto process_amplitude_exp = [](f32 amplitude, f32 factor) {
@@ -526,6 +527,7 @@ Common::Input::VibrationError SDLDriver::SetRumble(const PadIdentifier& identifi
 
     return Common::Input::VibrationError::None;
 }
+
 Common::ParamPackage SDLDriver::BuildAnalogParamPackageForButton(int port, std::string guid,
                                                                  s32 axis, float value) const {
     Common::ParamPackage params{};

src/input_common/drivers/sdl_driver.h

@@ -59,7 +59,7 @@ public:
     u8 GetHatButtonId(const std::string& direction_name) const override;
 
     Common::Input::VibrationError SetRumble(
-        const PadIdentifier& identifier, const Common::Input::VibrationStatus vibration) override;
+        const PadIdentifier& identifier, const Common::Input::VibrationStatus& vibration) override;
 
 private:
     void InitJoystick(int joystick_index);

src/input_common/input_engine.h

@@ -119,7 +119,7 @@ public:
     // Sets rumble to a controller
     virtual Common::Input::VibrationError SetRumble(
         [[maybe_unused]] const PadIdentifier& identifier,
-        [[maybe_unused]] const Common::Input::VibrationStatus vibration) {
+        [[maybe_unused]] const Common::Input::VibrationStatus& vibration) {
         return Common::Input::VibrationError::NotSupported;
     }
 

src/input_common/input_poller.cpp

@@ -673,7 +673,7 @@ public:
     }
 
     virtual Common::Input::VibrationError SetVibration(
-        Common::Input::VibrationStatus vibration_status) {
+        const Common::Input::VibrationStatus& vibration_status) {
         return input_engine->SetRumble(identifier, vibration_status);
     }