feature: Virtual dual Joy-Con

See merge request ryubing/ryujinx!3
2025-06-30 15:06:26 +02:00 · 2025-04-07 18:15:14 -05:00 · 2025-04-07 18:15:14 -05:00 · 60992e2545
commit 60992e2545
parent adae465b08
6 changed files with 643 additions and 1 deletions
--- a/src/Ryujinx.Input.SDL2/SDL2JoyConPair.cs
+++ b/src/Ryujinx.Input.SDL2/SDL2JoyConPair.cs
@ -0,0 +1,146 @@
+using Ryujinx.Common.Configuration.Hid;
+using Ryujinx.Common.Configuration.Hid.Controller;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Numerics;
+using static SDL2.SDL;
+
+namespace Ryujinx.Input.SDL2
+{
+    internal class SDL2JoyConPair(IGamepad left, IGamepad right) : IGamepad
+    {
+        private StandardControllerInputConfig _configuration;
+
+        private readonly StickInputId[] _stickUserMapping =
+        [
+            StickInputId.Unbound,
+            StickInputId.Left,
+            StickInputId.Right
+        ];
+
+        public GamepadFeaturesFlag Features => (left?.Features ?? GamepadFeaturesFlag.None) |
+                                               (right?.Features ?? GamepadFeaturesFlag.None);
+
+        public const string Id = "JoyConPair";
+        string IGamepad.Id => Id;
+
+        public string Name => "* Nintendo Switch Joy-Con (L/R)";
+        public bool IsConnected => left is { IsConnected: true } && right is { IsConnected: true };
+
+        public void Dispose()
+        {
+            left?.Dispose();
+            right?.Dispose();
+        }
+
+        public GamepadStateSnapshot GetMappedStateSnapshot()
+        {
+            return GetStateSnapshot();
+        }
+
+        public Vector3 GetMotionData(MotionInputId inputId)
+        {
+            return inputId switch
+            {
+                MotionInputId.Accelerometer or
+                    MotionInputId.Gyroscope => left.GetMotionData(inputId),
+                MotionInputId.SecondAccelerometer => right.GetMotionData(MotionInputId.Accelerometer),
+                MotionInputId.SecondGyroscope => right.GetMotionData(MotionInputId.Gyroscope),
+                _ => Vector3.Zero
+            };
+        }
+
+        public GamepadStateSnapshot GetStateSnapshot()
+        {
+            return IGamepad.GetStateSnapshot(this);
+        }
+
+        public (float, float) GetStick(StickInputId inputId)
+        {
+            return inputId switch
+            {
+                StickInputId.Left => left.GetStick(StickInputId.Left),
+                StickInputId.Right => right.GetStick(StickInputId.Right),
+                _ => (0, 0)
+            };
+        }
+
+        public bool IsPressed(GamepadButtonInputId inputId)
+        {
+            return left.IsPressed(inputId) || right.IsPressed(inputId);
+        }
+
+        public void Rumble(float lowFrequency, float highFrequency, uint durationMs)
+        {
+            if (lowFrequency != 0)
+            {
+                right.Rumble(lowFrequency, lowFrequency, durationMs);
+            }
+
+            if (highFrequency != 0)
+            {
+                left.Rumble(highFrequency, highFrequency, durationMs);
+            }
+
+            if (lowFrequency == 0 && highFrequency == 0)
+            {
+                left.Rumble(0, 0, durationMs);
+                right.Rumble(0, 0, durationMs);
+            }
+        }
+
+        public void SetConfiguration(InputConfig configuration)
+        {
+            left.SetConfiguration(configuration);
+            right.SetConfiguration(configuration);
+        }
+
+        public void SetLed(uint packedRgb)
+        {
+        }
+
+        public void SetTriggerThreshold(float triggerThreshold)
+        {
+            left.SetTriggerThreshold(triggerThreshold);
+            right.SetTriggerThreshold(triggerThreshold);
+        }
+
+        public static bool IsCombinable(List<string> gamepadsIds)
+        {
+            (int leftIndex, int rightIndex) = DetectJoyConPair(gamepadsIds);
+            return leftIndex >= 0 && rightIndex >= 0;
+        }
+
+        private static (int leftIndex, int rightIndex) DetectJoyConPair(List<string> gamepadsIds)
+        {
+            var gamepadNames = gamepadsIds.Where(gamepadId => gamepadId != Id)
+                .Select((_, index) => SDL_GameControllerNameForIndex(index)).ToList();
+            int leftIndex = gamepadNames.IndexOf(SDL2JoyCon.LeftName);
+            int rightIndex = gamepadNames.IndexOf(SDL2JoyCon.RightName);
+
+            return (leftIndex, rightIndex);
+        }
+
+        public static IGamepad GetGamepad(List<string> gamepadsIds)
+        {
+            (int leftIndex, int rightIndex) = DetectJoyConPair(gamepadsIds);
+            if (leftIndex == -1 || rightIndex == -1)
+            {
+                return null;
+            }
+
+            nint leftGamepadHandle = SDL_GameControllerOpen(leftIndex);
+            nint rightGamepadHandle = SDL_GameControllerOpen(rightIndex);
+
+            if (leftGamepadHandle == nint.Zero || rightGamepadHandle == nint.Zero)
+            {
+                return null;
+            }
+
+
+            return new SDL2JoyConPair(new SDL2JoyCon(leftGamepadHandle, gamepadsIds[leftIndex]),
+                new SDL2JoyCon(rightGamepadHandle, gamepadsIds[rightIndex]));
+        }
+    }
+}