core/hid: Add output devices

src/input_common/drivers/gc_adapter.cpp

@@ -322,13 +322,17 @@ bool GCAdapter::GetGCEndpoint(libusb_device* device) {
     return true;
 }
 
-bool GCAdapter::SetRumble(const PadIdentifier& identifier, const Input::VibrationStatus vibration) {
+Input::VibrationError GCAdapter::SetRumble(const PadIdentifier& identifier, const 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);
 
     pads[identifier.port].rumble_amplitude = processed_amplitude;
-    return rumble_enabled;
+
+    if (!rumble_enabled) {
+        return Input::VibrationError::Disabled;
+    }
+    return Input::VibrationError::None;
 }
 
 void GCAdapter::UpdateVibrations() {

src/input_common/drivers/gc_adapter.h

@@ -24,7 +24,7 @@ public:
     explicit GCAdapter(const std::string input_engine_);
     ~GCAdapter();
 
-    bool SetRumble(const PadIdentifier& identifier,
+    Input::VibrationError SetRumble(const PadIdentifier& identifier,
                    const Input::VibrationStatus vibration) override;
 
     /// Used for automapping features

src/input_common/drivers/sdl_driver.cpp

@@ -506,7 +506,8 @@ std::vector<Common::ParamPackage> SDLDriver::GetInputDevices() const {
     }
     return devices;
 }
-bool SDLDriver::SetRumble(const PadIdentifier& identifier, const Input::VibrationStatus vibration) {
+Input::VibrationError SDLDriver::SetRumble(const PadIdentifier& identifier,
+                                           const Input::VibrationStatus vibration) {
     const auto joystick =
         GetSDLJoystickByGUID(identifier.guid.Format(), static_cast<int>(identifier.port));
     const auto process_amplitude = [](f32 amplitude) {
@@ -519,7 +520,10 @@ bool SDLDriver::SetRumble(const PadIdentifier& identifier, const Input::Vibratio
         .high_frequency = vibration.high_frequency,
     };
 
-    return joystick->RumblePlay(new_vibration);
+    if (!joystick->RumblePlay(new_vibration)) {
+        return Input::VibrationError::Unknown;
+    }
+    return Input::VibrationError::None;
 }
 Common::ParamPackage SDLDriver::BuildAnalogParamPackageForButton(int port, std::string guid,
                                                                  s32 axis, float value) const {

src/input_common/drivers/sdl_driver.h

@@ -58,7 +58,7 @@ public:
     std::string GetHatButtonName(u8 direction_value) const override;
     u8 GetHatButtonId(const std::string direction_name) const override;
 
-    bool SetRumble(const PadIdentifier& identifier,
+    Input::VibrationError SetRumble(const PadIdentifier& identifier,
                    const Input::VibrationStatus vibration) override;
 
 private:

src/input_common/helpers/stick_from_buttons.cpp

@@ -251,7 +251,8 @@ private:
     std::chrono::time_point<std::chrono::steady_clock> last_update;
 };
 
-std::unique_ptr<Input::InputDevice> StickFromButton::Create(const Common::ParamPackage& params) {
+std::unique_ptr<Input::InputDevice> StickFromButton::Create(
+    const Common::ParamPackage& params) {
     const std::string null_engine = Common::ParamPackage{{"engine", "null"}}.Serialize();
     auto up = Input::CreateDeviceFromString<Input::InputDevice>(params.Get("up", null_engine));
     auto down = Input::CreateDeviceFromString<Input::InputDevice>(params.Get("down", null_engine));

src/input_common/helpers/stick_from_buttons.h

@@ -25,7 +25,8 @@ public:
      *     - "modifier": a serialized ParamPackage for creating a button device as the modifier
      *     - "modifier_scale": a float for the multiplier the modifier gives to the position
      */
-    std::unique_ptr<Input::InputDevice> Create(const Common::ParamPackage& params) override;
+    std::unique_ptr<Input::InputDevice> Create(
+        const Common::ParamPackage& params) override;
 };
 
 } // namespace InputCommon

src/input_common/helpers/touch_from_buttons.cpp

@@ -57,7 +57,9 @@ private:
     const Input::AnalogProperties properties{0.0f, 1.0f, 0.5f, 0.0f, false};
 };
 
-std::unique_ptr<Input::InputDevice> TouchFromButton::Create(const Common::ParamPackage& params) {
+
+std::unique_ptr<Input::InputDevice> TouchFromButton::Create(
+    const Common::ParamPackage& params) {
     const std::string null_engine = Common::ParamPackage{{"engine", "null"}}.Serialize();
     auto button =
         Input::CreateDeviceFromString<Input::InputDevice>(params.Get("button", null_engine));

src/input_common/input_engine.h

@@ -114,18 +114,24 @@ public:
     // Disable configuring mode for mapping
     void EndConfiguration();
 
-    // Sets rumble to a controller
-    virtual bool SetRumble([[maybe_unused]] const PadIdentifier& identifier,
-                           [[maybe_unused]] const Input::VibrationStatus vibration) {
-        return false;
-    }
-
     // Sets a led pattern for a controller
     virtual void SetLeds([[maybe_unused]] const PadIdentifier& identifier,
                          [[maybe_unused]] const Input::LedStatus led_status) {
         return;
     }
 
+    // Sets rumble to a controller
+    virtual Input::VibrationError SetRumble([[maybe_unused]] const PadIdentifier& identifier,
+                           [[maybe_unused]] const Input::VibrationStatus vibration) {
+        return Input::VibrationError::NotSupported;
+    }
+
+    // Sets polling mode to a controller
+    virtual Input::PollingError SetPollingMode([[maybe_unused]] const PadIdentifier& identifier,
+                           [[maybe_unused]] const Input::PollingMode vibration) {
+        return Input::PollingError::NotSupported;
+    }
+
     // Returns the engine name
     [[nodiscard]] const std::string& GetEngineName() const;
 

src/input_common/input_poller.cpp

@@ -592,6 +592,28 @@ private:
     InputEngine* input_engine;
 };
 
+class OutputFromIdentifier final : public Input::OutputDevice {
+public:
+    explicit OutputFromIdentifier(PadIdentifier identifier_, InputEngine* input_engine_)
+        : identifier(identifier_), input_engine(input_engine_) {}
+
+    virtual void SetLED( Input::LedStatus led_status) {
+        input_engine->SetLeds(identifier, led_status);
+    }
+
+    virtual Input::VibrationError SetVibration(Input::VibrationStatus vibration_status) {
+        return input_engine->SetRumble(identifier, vibration_status);
+    }
+
+    virtual Input::PollingError SetPollingMode(Input::PollingMode polling_mode) {
+        return input_engine->SetPollingMode(identifier, polling_mode);
+    }
+
+private:
+    const PadIdentifier identifier;
+    InputEngine* input_engine;
+};
+
 std::unique_ptr<Input::InputDevice> InputFactory::CreateButtonDevice(
     const Common::ParamPackage& params) {
     const PadIdentifier identifier = {
@@ -825,7 +847,8 @@ std::unique_ptr<Input::InputDevice> InputFactory::CreateMotionDevice(Common::Par
 InputFactory::InputFactory(std::shared_ptr<InputEngine> input_engine_)
     : input_engine(std::move(input_engine_)) {}
 
-std::unique_ptr<Input::InputDevice> InputFactory::Create(const Common::ParamPackage& params) {
+std::unique_ptr<Input::InputDevice> InputFactory::Create(
+    const Common::ParamPackage& params) {
     if (params.Has("button") && params.Has("axis")) {
         return CreateTriggerDevice(params);
     }
@@ -857,4 +880,19 @@ std::unique_ptr<Input::InputDevice> InputFactory::Create(const Common::ParamPack
     return std::make_unique<DummyInput>();
 }
 
+OutputFactory::OutputFactory(std::shared_ptr<InputEngine> input_engine_)
+    : input_engine(std::move(input_engine_)) {}
+
+std::unique_ptr<Input::OutputDevice> OutputFactory::Create(
+    const Common::ParamPackage& params) {
+    const PadIdentifier identifier = {
+        .guid = Common::UUID{params.Get("guid", "")},
+        .port = static_cast<std::size_t>(params.Get("port", 0)),
+        .pad = static_cast<std::size_t>(params.Get("pad", 0)),
+    };
+
+    input_engine->PreSetController(identifier);
+    return std::make_unique<OutputFromIdentifier>(identifier, input_engine.get());
+}
+
 } // namespace InputCommon

src/input_common/input_poller.h

@@ -16,12 +16,32 @@ class InputEngine;
 /**
  * An Input factory. It receives input events and forward them to all input devices it created.
  */
+
+class OutputFactory final : public Input::Factory<Input::OutputDevice> {
+public:
+    explicit OutputFactory(std::shared_ptr<InputEngine> input_engine_);
+
+    /**
+     * Creates an output device from the parameters given.
+     * @param params contains parameters for creating the device:
+     * @param    - "guid": text string for identifing controllers
+     * @param    - "port": port of the connected device
+     * @param    - "pad": slot of the connected controller
+     * @return an unique ouput device with the parameters specified
+     */
+    std::unique_ptr<Input::OutputDevice> Create(
+        const Common::ParamPackage& params) override;
+
+private:
+    std::shared_ptr<InputEngine> input_engine;
+};
+
 class InputFactory final : public Input::Factory<Input::InputDevice> {
 public:
     explicit InputFactory(std::shared_ptr<InputEngine> input_engine_);
 
     /**
-     * Creates a input device from the parameters given. Identifies the type of input to be returned
+     * Creates an input device from the parameters given. Identifies the type of input to be returned
      * if it contains the following parameters:
      * - button: Contains "button" or "code"
      * - hat_button: Contains "hat"
@@ -32,6 +52,7 @@ public:
      * - motion: Contains "motion"
      * - touch: Contains "button", "axis_x" and "axis_y"
      * - battery: Contains "battery"
+     * - output: Contains "output"
      * @param params contains parameters for creating the device:
      * @param    - "code": the code of the keyboard key to bind with the input
      * @param    - "button": same as "code" but for controller buttons
@@ -41,10 +62,11 @@ public:
      * @param    - "axis_x": same as axis but specifing horizontal direction
      * @param    - "axis_y": same as axis but specifing vertical direction
      * @param    - "axis_z": same as axis but specifing forward direction
-     * @param   - "battery": Only used as a placeholder to set the input type
+     * @param    - "battery": Only used as a placeholder to set the input type
      * @return an unique input device with the parameters specified
      */
-    std::unique_ptr<Input::InputDevice> Create(const Common::ParamPackage& params) override;
+    std::unique_ptr<Input::InputDevice> Create(
+        const Common::ParamPackage& params) override;
 
 private:
     /**

src/input_common/main.cpp

@@ -46,8 +46,10 @@ struct InputSubsystem::Impl {
 
         gcadapter = std::make_shared<GCAdapter>("gcpad");
         gcadapter->SetMappingCallback(mapping_callback);
-        gcadapter_factory = std::make_shared<InputFactory>(gcadapter);
-        Input::RegisterFactory<Input::InputDevice>(gcadapter->GetEngineName(), gcadapter_factory);
+        gcadapter_input_factory = std::make_shared<InputFactory>(gcadapter);
+        gcadapter_output_factory = std::make_shared<OutputFactory>(gcadapter);
+        Input::RegisterFactory<Input::InputDevice>(gcadapter->GetEngineName(), gcadapter_input_factory);
+        Input::RegisterFactory<Input::OutputDevice>(gcadapter->GetEngineName(), gcadapter_output_factory);
 
         udp_client = std::make_shared<CemuhookUDP::UDPClient>("cemuhookudp");
         udp_client->SetMappingCallback(mapping_callback);
@@ -62,8 +64,10 @@ struct InputSubsystem::Impl {
 #ifdef HAVE_SDL2
         sdl = std::make_shared<SDLDriver>("sdl");
         sdl->SetMappingCallback(mapping_callback);
-        sdl_factory = std::make_shared<InputFactory>(sdl);
-        Input::RegisterFactory<Input::InputDevice>(sdl->GetEngineName(), sdl_factory);
+        sdl_input_factory = std::make_shared<InputFactory>(sdl);
+        sdl_output_factory = std::make_shared<OutputFactory>(sdl);
+        Input::RegisterFactory<Input::InputDevice>(sdl->GetEngineName(), sdl_input_factory);
+        Input::RegisterFactory<Input::OutputDevice>(sdl->GetEngineName(), sdl_output_factory);
 #endif
 
         Input::RegisterFactory<Input::InputDevice>("touch_from_button",
@@ -247,21 +251,27 @@ struct InputSubsystem::Impl {
     }
 
     std::shared_ptr<MappingFactory> mapping_factory;
+
     std::shared_ptr<Keyboard> keyboard;
-    std::shared_ptr<InputFactory> keyboard_factory;
     std::shared_ptr<Mouse> mouse;
-    std::shared_ptr<InputFactory> mouse_factory;
     std::shared_ptr<GCAdapter> gcadapter;
-    std::shared_ptr<InputFactory> gcadapter_factory;
     std::shared_ptr<TouchScreen> touch_screen;
-    std::shared_ptr<InputFactory> touch_screen_factory;
-    std::shared_ptr<CemuhookUDP::UDPClient> udp_client;
-    std::shared_ptr<InputFactory> udp_client_factory;
     std::shared_ptr<TasInput::Tas> tas_input;
+    std::shared_ptr<CemuhookUDP::UDPClient> udp_client;
+
+    std::shared_ptr<InputFactory> keyboard_factory;
+    std::shared_ptr<InputFactory> mouse_factory;
+    std::shared_ptr<InputFactory> gcadapter_input_factory;
+    std::shared_ptr<InputFactory> touch_screen_factory;
+    std::shared_ptr<InputFactory> udp_client_factory;
     std::shared_ptr<InputFactory> tas_input_factory;
+
+    std::shared_ptr<OutputFactory> gcadapter_output_factory;
+
 #ifdef HAVE_SDL2
     std::shared_ptr<SDLDriver> sdl;
-    std::shared_ptr<InputFactory> sdl_factory;
+    std::shared_ptr<InputFactory> sdl_input_factory;
+    std::shared_ptr<OutputFactory> sdl_output_factory;
 #endif
 };