Ryubing · SomeoneIsWorking · Feb 1, 2025
diff --git a/Directory.Packages.props b/Directory.Packages.props
@@ -3,6 +3,7 @@
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
   </PropertyGroup>
   <ItemGroup>
+    <PackageVersion Include="Alimer.Bindings.SDL" Version="3.7.1" />
     <PackageVersion Include="Avalonia" Version="11.0.13" />
     <PackageVersion Include="Avalonia.Controls.DataGrid" Version="11.0.13" />
     <PackageVersion Include="Avalonia.Desktop" Version="11.0.13" />

diff --git a/Ryujinx.sln b/Ryujinx.sln
@@ -75,6 +75,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Ryujinx.Horizon", "src\Ryuj
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Ryujinx.Horizon.Kernel.Generators", "src\Ryujinx.Horizon.Kernel.Generators\Ryujinx.Horizon.Kernel.Generators.csproj", "{7F55A45D-4E1D-4A36-ADD3-87F29A285AA2}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ryujinx.Input.SDL3", "src\Ryujinx.Input.SDL3\Ryujinx.Input.SDL3.csproj", "{3BF24278-547D-42C2-9D43-182B978F54DD}"
+EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Ryujinx.HLE.Generators", "src\Ryujinx.HLE.Generators\Ryujinx.HLE.Generators.csproj", "{B575BCDE-2FD8-4A5D-8756-31CDD7FE81F0}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ryujinx.Graphics.Metal", "src\Ryujinx.Graphics.Metal\Ryujinx.Graphics.Metal.csproj", "{C08931FA-1191-417A-864F-3882D93E683B}"
@@ -259,6 +261,10 @@ Global
 		{81EA598C-DBA1-40B0-8DA4-4796B78F2037}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{81EA598C-DBA1-40B0-8DA4-4796B78F2037}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{81EA598C-DBA1-40B0-8DA4-4796B78F2037}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3BF24278-547D-42C2-9D43-182B978F54DD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3BF24278-547D-42C2-9D43-182B978F54DD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3BF24278-547D-42C2-9D43-182B978F54DD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3BF24278-547D-42C2-9D43-182B978F54DD}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

diff --git a/...Ryujinx.Common/Configuration/Hid/Controller/Motion/JsonMotionConfigControllerConverter.cs b/...Ryujinx.Common/Configuration/Hid/Controller/Motion/JsonMotionConfigControllerConverter.cs
@@ -56,6 +56,7 @@ public override MotionConfigController Read(ref Utf8JsonReader reader, Type type
             return motionBackendType switch
             {
                 MotionInputBackendType.GamepadDriver => JsonSerializer.Deserialize(ref reader, _serializerContext.StandardMotionConfigController),
+                MotionInputBackendType.Handheld => JsonSerializer.Deserialize(ref reader, _serializerContext.StandardMotionConfigController),
                 MotionInputBackendType.CemuHook => JsonSerializer.Deserialize(ref reader, _serializerContext.CemuHookMotionConfigController),
                 _ => throw new InvalidOperationException($"Unknown backend type {motionBackendType}"),
             };
@@ -66,6 +67,7 @@ public override void Write(Utf8JsonWriter writer, MotionConfigController value,
             switch (value.MotionBackend)
             {
                 case MotionInputBackendType.GamepadDriver:
+                case MotionInputBackendType.Handheld:
                     JsonSerializer.Serialize(writer, value as StandardMotionConfigController, _serializerContext.StandardMotionConfigController);
                     break;
                 case MotionInputBackendType.CemuHook:

diff --git a/src/Ryujinx.Common/Configuration/Hid/Controller/Motion/MotionInputBackendType.cs b/src/Ryujinx.Common/Configuration/Hid/Controller/Motion/MotionInputBackendType.cs
@@ -9,5 +9,6 @@ public enum MotionInputBackendType : byte
         Invalid,
         GamepadDriver,
         CemuHook,
+        Handheld,
     }
 }
diff --git a/src/Ryujinx.Input.SDL3/Ryujinx.Input.SDL3.csproj b/src/Ryujinx.Input.SDL3/Ryujinx.Input.SDL3.csproj
@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Ryujinx.Input\Ryujinx.Input.csproj" />
+    <PackageReference Include="Alimer.Bindings.SDL" />
+  </ItemGroup>
+
+</Project>
diff --git a/src/Ryujinx.Input.SDL3/SDL3MotionDriver.cs b/src/Ryujinx.Input.SDL3/SDL3MotionDriver.cs
@@ -0,0 +1,85 @@
+using SDL3;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+using static SDL3.SDL3;
+
+namespace Ryujinx.Input.SDL3
+{
+    public unsafe class SDL3MotionDriver : IHandheld, IDisposable
+    {
+        private readonly Dictionary<SDL_SensorType, SDL_Sensor> sensors;
+        private bool _disposed;
+
+        public SDL3MotionDriver()
+        {
+            int result = SDL_Init(SDL_InitFlags.Sensor);
+            if (result < 0)
+            {
+                throw new InvalidOperationException($"SDL sensor initialization failed: {SDL_GetError()}");
+            }
+            sensors = SDL_GetSensors().ToArray().ToDictionary(SDL_GetSensorTypeForID, SDL_OpenSensor);
+        }
+
+        ~SDL3MotionDriver()
+        {
+            Dispose(false);
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+            GC.SuppressFinalize(this);
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (_disposed)
+            {
+                return;
+            }
+
+            if (disposing && sensors != null)
+            {
+                foreach (var sensor in sensors.Values)
+                {
+                    if (sensor != IntPtr.Zero)
+                    {
+                        SDL_CloseSensor(sensor);
+                    }
+                }
+            }
+
+            _disposed = true;
+        }
+
+        public Vector3 GetMotionData(MotionInputId inputType)
+        {
+            ObjectDisposedException.ThrowIf(_disposed, this);
+
+            return inputType switch
+            {
+                MotionInputId.Gyroscope => GetSensorVector(SDL_SensorType.Gyro) * 180 / MathF.PI,
+                MotionInputId.Accelerometer => GetSensorVector(SDL_SensorType.Accel) / SDL_STANDARD_GRAVITY,
+                _ => Vector3.Zero
+            };
+        }
+
+        private Vector3 GetSensorVector(SDL_SensorType sensorType)
+        {
+            if (!sensors.TryGetValue(sensorType, out SDL_Sensor sensor))
+            {
+                return Vector3.Zero;
+            }
+
+            var data = stackalloc float[3];
+            if (SDL_GetSensorData(sensor, data, 3) < 0)
+            {
+                return Vector3.Zero;
+            }
+
+            return new Vector3(data[0], data[1], data[2]);
+        }
+    }
+}
diff --git a/src/Ryujinx.Input/HLE/InputManager.cs b/src/Ryujinx.Input/HLE/InputManager.cs
@@ -2,12 +2,13 @@
 
 namespace Ryujinx.Input.HLE
 {
-    public class InputManager(IGamepadDriver keyboardDriver, IGamepadDriver gamepadDriver)
+    public class InputManager(IGamepadDriver keyboardDriver, IGamepadDriver gamepadDriver, IHandheld handheld)
         : IDisposable
     {
         public IGamepadDriver KeyboardDriver { get; } = keyboardDriver;
         public IGamepadDriver GamepadDriver { get; } = gamepadDriver;
         public IGamepadDriver MouseDriver { get; private set; }
+        public IHandheld Handheld { get; } = handheld;
 
         public void SetMouseDriver(IGamepadDriver mouseDriver)
         {
@@ -18,7 +19,7 @@ public void SetMouseDriver(IGamepadDriver mouseDriver)
 
         public NpadManager CreateNpadManager()
         {
-            return new NpadManager(KeyboardDriver, GamepadDriver, MouseDriver);
+            return new NpadManager(KeyboardDriver, GamepadDriver, MouseDriver, Handheld);
         }
 
         public TouchScreenManager CreateTouchScreenManager()
@@ -38,6 +39,7 @@ protected virtual void Dispose(bool disposing)
                 KeyboardDriver?.Dispose();
                 GamepadDriver?.Dispose();
                 MouseDriver?.Dispose();
+                Handheld?.Dispose();
             }
         }
 

diff --git a/src/Ryujinx.Input/HLE/NpadController.cs b/src/Ryujinx.Input/HLE/NpadController.cs
@@ -218,12 +218,14 @@ public HLEKeyboardMappingEntry(Key targetKey, byte target)
         public string Id { get; private set; }
 
         private readonly CemuHookClient _cemuHookClient;
+        private readonly IHandheld _handheld;
 
-        public NpadController(CemuHookClient cemuHookClient)
+        public NpadController(CemuHookClient cemuHookClient, IHandheld handheld)
         {
             State = default;
             Id = null;
             _cemuHookClient = cemuHookClient;
+            _handheld = handheld;
         }
 
         public bool UpdateDriverConfiguration(IGamepadDriver gamepadDriver, InputConfig config)
@@ -287,6 +289,18 @@ public void Update()
 
                 if (_config is StandardControllerInputConfig controllerConfig && controllerConfig.Motion.EnableMotion)
                 {
+                    if (controllerConfig.Motion.MotionBackend == MotionInputBackendType.Handheld)
+                    {
+                        Vector3 accelerometer = _handheld.GetMotionData(MotionInputId.Accelerometer);
+                        Vector3 gyroscope = _handheld.GetMotionData(MotionInputId.Gyroscope);
+
+                        accelerometer = new Vector3(accelerometer.X, -accelerometer.Z, accelerometer.Y);
+                        gyroscope = new Vector3(gyroscope.X, -gyroscope.Z, gyroscope.Y);
+
+                        _leftMotionInput.Update(accelerometer, gyroscope, (ulong)PerformanceCounter.ElapsedNanoseconds / 1000, controllerConfig.Motion.Sensitivity, (float)controllerConfig.Motion.GyroDeadzone);
+                        _rightMotionInput = _leftMotionInput;
+                    }
+
                     if (controllerConfig.Motion.MotionBackend == MotionInputBackendType.GamepadDriver)
                     {
                         if (gamepad.Features.HasFlag(GamepadFeaturesFlag.Motion))

diff --git a/src/Ryujinx.Input/HLE/NpadManager.cs b/src/Ryujinx.Input/HLE/NpadManager.cs
@@ -31,14 +31,15 @@ public class NpadManager : IDisposable
         private readonly IGamepadDriver _keyboardDriver;
         private readonly IGamepadDriver _gamepadDriver;
         private readonly IGamepadDriver _mouseDriver;
+        private readonly IHandheld _handheld;
         private bool _isDisposed;
 
         private List<InputConfig> _inputConfig;
         private bool _enableKeyboard;
         private bool _enableMouse;
         private Switch _device;
 
-        public NpadManager(IGamepadDriver keyboardDriver, IGamepadDriver gamepadDriver, IGamepadDriver mouseDriver)
+        public NpadManager(IGamepadDriver keyboardDriver, IGamepadDriver gamepadDriver, IGamepadDriver mouseDriver, IHandheld handheld)
         {
             _controllers = new NpadController[MaxControllers];
             _cemuHookClient = new CemuHookClient(this);
@@ -47,6 +48,7 @@ public NpadManager(IGamepadDriver keyboardDriver, IGamepadDriver gamepadDriver,
             _gamepadDriver = gamepadDriver;
             _mouseDriver = mouseDriver;
             _inputConfig = [];
+            _handheld = handheld;
 
             _gamepadDriver.OnGamepadConnected += HandleOnGamepadConnected;
             _gamepadDriver.OnGamepadDisconnected += HandleOnGamepadDisconnected;
@@ -139,7 +141,7 @@ public void ReloadConfiguration(List<InputConfig> inputConfig, bool enableKeyboa
                     }
                     else
                     {
-                        controller = new(_cemuHookClient);
+                        controller = new(_cemuHookClient, _handheld);
                     }
 
                     bool isValid = DriverConfigurationUpdate(ref controller, inputConfigEntry);

diff --git a/src/Ryujinx.Input/IHandheld.cs b/src/Ryujinx.Input/IHandheld.cs
@@ -0,0 +1,10 @@
+using System;
+using System.Numerics;
+
+namespace Ryujinx.Input
+{
+    public interface IHandheld : IDisposable
+    {
+        Vector3 GetMotionData(MotionInputId gyroscope);
+    }
+}
diff --git a/src/Ryujinx/Assets/locales.json b/src/Ryujinx/Assets/locales.json
@@ -7522,6 +7522,31 @@
         "zh_TW": "使用與 CemuHook 相容的體感"
       }
     },
+    {
+      "ID": "ControllerSettingsMotionUseHandheldCompatibleMotion",
+      "Translations": {
+        "ar_SA": "استخدام الحركة المتوافقة مع Hendheld",
+        "de_DE": "Hendheld kompatible Bewegungssteuerung",
+        "el_GR": "Κίνηση συμβατή με Hendheld",
+        "en_US": "Use Hendheld compatible motion",
+        "es_ES": "Usar movimiento compatible con Hendheld",
+        "fr_FR": "Utiliser un capteur de mouvements Hendheld",
+        "he_IL": "השתמש בתנועת Hendheld תואמת ",
+        "it_IT": "Usa sensore compatibile con Hendheld",
+        "ja_JP": "Hendheld 互換モーションを使用",
+        "ko_KR": "Hendheld 호환 모션 사용",
+        "no_NO": "Bruk Hendheld kompatibel bevegelse",
+        "pl_PL": "Użyj ruchu zgodnego z Hendheld",
+        "pt_BR": "Usar sensor compatível com Hendheld",
+        "ru_RU": "Включить совместимость с Hendheld",
+        "sv_SE": "Använd Hendheld-kompatibel rörelse",
+        "th_TH": "ใช้การเคลื่อนไหวที่เข้ากันได้กับ Hendheld",
+        "tr_TR": "Hendheld uyumlu hareket kullan",
+        "uk_UA": "Використовувати рух, сумісний з Hendheld",
+        "zh_CN": "使用 Hendheld 兼容的体感协议",
+        "zh_TW": "使用與 Hendheld 相容的體感"
+      }
+    },
     {
       "ID": "ControllerSettingsMotionControllerSlot",
       "Translations": {
@@ -23173,4 +23198,4 @@
       }
     }
   ]
-}
+}
diff --git a/src/Ryujinx/Headless/HeadlessRyujinx.cs b/src/Ryujinx/Headless/HeadlessRyujinx.cs
@@ -23,6 +23,7 @@
 using Ryujinx.Input;
 using Ryujinx.Input.HLE;
 using Ryujinx.Input.SDL2;
+using Ryujinx.Input.SDL3;
 using Ryujinx.SDL2.Common;
 using System;
 using System.Collections.Generic;
@@ -182,7 +183,7 @@ static void Load(string[] originalArgs, Options option)
             _accountManager = new AccountManager(_libHacHorizonManager.RyujinxClient, option.UserProfile);
             _userChannelPersistence = new UserChannelPersistence();
 
-            _inputManager = new InputManager(new SDL2KeyboardDriver(), new SDL2GamepadDriver());
+            _inputManager = new InputManager(new SDL2KeyboardDriver(), new SDL2GamepadDriver(), new SDL3MotionDriver());
 
             GraphicsConfig.EnableShaderCache = !option.DisableShaderCache;
 

diff --git a/src/Ryujinx/Ryujinx.csproj b/src/Ryujinx/Ryujinx.csproj
@@ -76,6 +76,7 @@
     <ProjectReference Include="..\Ryujinx.Graphics.Metal\Ryujinx.Graphics.Metal.csproj" />
     <ProjectReference Include="..\Ryujinx.Input\Ryujinx.Input.csproj" />
     <ProjectReference Include="..\Ryujinx.Input.SDL2\Ryujinx.Input.SDL2.csproj" />
+    <ProjectReference Include="..\Ryujinx.Input.SDL3\Ryujinx.Input.SDL3.csproj" />
     <ProjectReference Include="..\Ryujinx.Audio.Backends.OpenAL\Ryujinx.Audio.Backends.OpenAL.csproj" />
     <ProjectReference Include="..\Ryujinx.Audio.Backends.SoundIo\Ryujinx.Audio.Backends.SoundIo.csproj" />
     <ProjectReference Include="..\Ryujinx.Common\Ryujinx.Common.csproj" />

diff --git a/src/Ryujinx/UI/Models/Input/GamepadInputConfig.cs b/src/Ryujinx/UI/Models/Input/GamepadInputConfig.cs
@@ -10,6 +10,7 @@ namespace Ryujinx.Ava.UI.Models.Input
     public class GamepadInputConfig : BaseModel
     {
         public bool EnableCemuHookMotion { get; set; }
+        public bool EnableHandheldMotion { get; set; }
         public string DsuServerHost { get; set; }
         public int DsuServerPort { get; set; }
         public int Slot { get; set; }
@@ -518,7 +519,7 @@ public GamepadInputConfig(InputConfig config)
                     EnableMotion = controllerInput.Motion.EnableMotion;
                     GyroDeadzone = controllerInput.Motion.GyroDeadzone;
                     Sensitivity = controllerInput.Motion.Sensitivity;
-
+                    EnableHandheldMotion = controllerInput.Motion.MotionBackend == MotionInputBackendType.Handheld;
                     if (controllerInput.Motion is CemuHookMotionConfigController cemuHook)
                     {
                         EnableCemuHookMotion = true;
@@ -641,7 +642,7 @@ public InputConfig GetConfig()
                 config.Motion = new StandardMotionConfigController
                 {
                     EnableMotion = EnableMotion,
-                    MotionBackend = MotionInputBackendType.GamepadDriver,
+                    MotionBackend = EnableHandheldMotion ? MotionInputBackendType.Handheld : MotionInputBackendType.GamepadDriver,
                     GyroDeadzone = GyroDeadzone,
                     Sensitivity = Sensitivity,
                 };

diff --git a/src/Ryujinx/UI/ViewModels/Input/MotionInputViewModel.cs b/src/Ryujinx/UI/ViewModels/Input/MotionInputViewModel.cs
@@ -18,6 +18,34 @@ public partial class MotionInputViewModel : BaseModel
 
         [ObservableProperty] private double _gyroDeadzone;
 
-        [ObservableProperty] private bool _enableCemuHookMotion;
+        private bool _enableCemuHookMotion;
+        public bool EnableCemuHookMotion
+        {
+            get => _enableCemuHookMotion;
+            set
+            {
+                if (value)
+                {
+                    EnableHandheldMotion = false;
+                }
+                _enableCemuHookMotion = value;
+                OnPropertyChanged();
+            }
+        }
+
+        private bool _enableHandheldMotion;
+        public bool EnableHandheldMotion
+        {
+            get => _enableHandheldMotion;
+            set
+            {
+                if (value)
+                {
+                    EnableCemuHookMotion = false;
+                }
+                _enableHandheldMotion = value;
+                OnPropertyChanged();
+            }
+        }
     }
 }