Add a virtual controller to merge Joy-Cons.
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madwind
229
src/Ryujinx.Input.SDL2/SDL2JoyConPair.cs
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229
src/Ryujinx.Input.SDL2/SDL2JoyConPair.cs
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using Ryujinx.Common.Configuration.Hid;
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using Ryujinx.Common.Configuration.Hid.Controller;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Numerics;
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using static SDL2.SDL;
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namespace Ryujinx.Input.SDL2
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{
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internal class SDL2JoyConPair : IGamepad
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{
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private IGamepad _left;
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private IGamepad _right;
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private StandardControllerInputConfig _configuration;
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private readonly StickInputId[] _stickUserMapping = new StickInputId[(int)StickInputId.Count]
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{
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StickInputId.Unbound,
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StickInputId.Left,
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StickInputId.Right,
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};
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private readonly record struct ButtonMappingEntry(GamepadButtonInputId To, GamepadButtonInputId From)
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{
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public bool IsValid => To is not GamepadButtonInputId.Unbound && From is not GamepadButtonInputId.Unbound;
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}
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private readonly List<ButtonMappingEntry> _buttonsUserMapping;
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public SDL2JoyConPair()
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{
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_buttonsUserMapping = new List<ButtonMappingEntry>(20);
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}
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private readonly object _userMappingLock = new();
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public GamepadFeaturesFlag Features => (_left?.Features ?? GamepadFeaturesFlag.None) | (_right?.Features ?? GamepadFeaturesFlag.None);
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public string Id => "JoyConPair";
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public string Name => "Nintendo Switch Joy-Con (L/R)";
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private static readonly string leftName = "Nintendo Switch Joy-Con (L)";
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private static readonly string rightName = "Nintendo Switch Joy-Con (R)";
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public bool IsConnected => (_left != null && _left.IsConnected) && (_right != null && _right.IsConnected);
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public void Dispose()
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{
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_left?.Dispose();
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_right?.Dispose();
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}
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public GamepadStateSnapshot GetMappedStateSnapshot()
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{
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GamepadStateSnapshot rawState = GetStateSnapshot();
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GamepadStateSnapshot result = default;
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lock (_userMappingLock)
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{
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if (_buttonsUserMapping.Count == 0)
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return rawState;
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// ReSharper disable once ForeachCanBePartlyConvertedToQueryUsingAnotherGetEnumerator
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foreach (ButtonMappingEntry entry in _buttonsUserMapping)
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{
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if (!entry.IsValid)
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continue;
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// Do not touch state of button already pressed
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if (!result.IsPressed(entry.To))
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{
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result.SetPressed(entry.To, rawState.IsPressed(entry.From));
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}
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}
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(float leftStickX, float leftStickY) = rawState.GetStick(_stickUserMapping[(int)StickInputId.Left]);
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(float rightStickX, float rightStickY) = rawState.GetStick(_stickUserMapping[(int)StickInputId.Right]);
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result.SetStick(StickInputId.Left, leftStickX, leftStickY);
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result.SetStick(StickInputId.Right, rightStickX, rightStickY);
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}
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return result;
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}
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public Vector3 GetMotionData(MotionInputId inputId)
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{
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return inputId switch
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{
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MotionInputId.SecondAccelerometer => _right.GetMotionData(MotionInputId.Accelerometer),
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MotionInputId.SecondGyroscope => _right.GetMotionData(MotionInputId.Gyroscope),
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_ => _left.GetMotionData(inputId)
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};
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}
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public GamepadStateSnapshot GetStateSnapshot()
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{
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return IGamepad.GetStateSnapshot(this);
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}
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public (float, float) GetStick(StickInputId inputId)
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{
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if (inputId == StickInputId.Left)
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{
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(float x, float y) = _left.GetStick(StickInputId.Left);
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return (y, -x);
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}
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else if (inputId == StickInputId.Right)
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{
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(float x, float y) = _right.GetStick(StickInputId.Left);
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return (-y, x);
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}
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return (0, 0);
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}
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public bool IsPressed(GamepadButtonInputId inputId)
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{
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return inputId switch
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{
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GamepadButtonInputId.LeftStick => _left.IsPressed(GamepadButtonInputId.LeftStick),
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GamepadButtonInputId.DpadUp => _left.IsPressed(GamepadButtonInputId.Y),
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GamepadButtonInputId.DpadDown => _left.IsPressed(GamepadButtonInputId.A),
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GamepadButtonInputId.DpadLeft => _left.IsPressed(GamepadButtonInputId.B),
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GamepadButtonInputId.DpadRight => _left.IsPressed(GamepadButtonInputId.X),
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GamepadButtonInputId.Minus => _left.IsPressed(GamepadButtonInputId.Start),
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GamepadButtonInputId.LeftShoulder => _left.IsPressed(GamepadButtonInputId.Paddle2),
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GamepadButtonInputId.LeftTrigger => _left.IsPressed(GamepadButtonInputId.Paddle4),
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GamepadButtonInputId.SingleRightTrigger0 => _left.IsPressed(GamepadButtonInputId.LeftShoulder),
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GamepadButtonInputId.SingleLeftTrigger0 => _left.IsPressed(GamepadButtonInputId.RightShoulder),
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GamepadButtonInputId.RightStick => _right.IsPressed(GamepadButtonInputId.LeftStick),
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GamepadButtonInputId.A => _right.IsPressed(GamepadButtonInputId.B),
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GamepadButtonInputId.B => _right.IsPressed(GamepadButtonInputId.Y),
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GamepadButtonInputId.X => _right.IsPressed(GamepadButtonInputId.A),
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GamepadButtonInputId.Y => _right.IsPressed(GamepadButtonInputId.X),
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GamepadButtonInputId.Plus => _right.IsPressed(GamepadButtonInputId.Start),
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GamepadButtonInputId.RightShoulder => _right.IsPressed(GamepadButtonInputId.Paddle1),
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GamepadButtonInputId.RightTrigger => _right.IsPressed(GamepadButtonInputId.Paddle3),
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GamepadButtonInputId.SingleRightTrigger1 => _right.IsPressed(GamepadButtonInputId.LeftShoulder),
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GamepadButtonInputId.SingleLeftTrigger1 => _right.IsPressed(GamepadButtonInputId.RightShoulder),
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_ => false
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};
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}
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public void Rumble(float lowFrequency, float highFrequency, uint durationMs)
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{
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if (lowFrequency != 0)
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{
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_right.Rumble(lowFrequency, lowFrequency, durationMs);
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}
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if (highFrequency != 0)
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{
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_left.Rumble(highFrequency, highFrequency, durationMs);
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}
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if (lowFrequency == 0 && highFrequency == 0)
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{
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_left.Rumble(lowFrequency, highFrequency, durationMs);
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_right.Rumble(lowFrequency, highFrequency, durationMs);
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}
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}
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public void SetConfiguration(InputConfig configuration)
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{
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lock (_userMappingLock)
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{
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_configuration = (StandardControllerInputConfig)configuration;
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_left.SetConfiguration(configuration);
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_right.SetConfiguration(configuration);
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_buttonsUserMapping.Clear();
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// First update sticks
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_stickUserMapping[(int)StickInputId.Left] = (StickInputId)_configuration.LeftJoyconStick.Joystick;
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_stickUserMapping[(int)StickInputId.Right] = (StickInputId)_configuration.RightJoyconStick.Joystick;
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// Then left joycon
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.LeftStick, (GamepadButtonInputId)_configuration.LeftJoyconStick.StickButton));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.DpadUp, (GamepadButtonInputId)_configuration.LeftJoycon.DpadUp));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.DpadDown, (GamepadButtonInputId)_configuration.LeftJoycon.DpadDown));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.DpadLeft, (GamepadButtonInputId)_configuration.LeftJoycon.DpadLeft));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.DpadRight, (GamepadButtonInputId)_configuration.LeftJoycon.DpadRight));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.Minus, (GamepadButtonInputId)_configuration.LeftJoycon.ButtonMinus));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.LeftShoulder, (GamepadButtonInputId)_configuration.LeftJoycon.ButtonL));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.LeftTrigger, (GamepadButtonInputId)_configuration.LeftJoycon.ButtonZl));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.SingleRightTrigger0, (GamepadButtonInputId)_configuration.LeftJoycon.ButtonSr));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.SingleLeftTrigger0, (GamepadButtonInputId)_configuration.LeftJoycon.ButtonSl));
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// Finally right joycon
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.RightStick, (GamepadButtonInputId)_configuration.RightJoyconStick.StickButton));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.A, (GamepadButtonInputId)_configuration.RightJoycon.ButtonA));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.B, (GamepadButtonInputId)_configuration.RightJoycon.ButtonB));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.X, (GamepadButtonInputId)_configuration.RightJoycon.ButtonX));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.Y, (GamepadButtonInputId)_configuration.RightJoycon.ButtonY));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.Plus, (GamepadButtonInputId)_configuration.RightJoycon.ButtonPlus));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.RightShoulder, (GamepadButtonInputId)_configuration.RightJoycon.ButtonR));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.RightTrigger, (GamepadButtonInputId)_configuration.RightJoycon.ButtonZr));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.SingleRightTrigger1, (GamepadButtonInputId)_configuration.RightJoycon.ButtonSr));
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_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.SingleLeftTrigger1, (GamepadButtonInputId)_configuration.RightJoycon.ButtonSl));
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SetTriggerThreshold(_configuration.TriggerThreshold);
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}
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}
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public void SetTriggerThreshold(float triggerThreshold)
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{
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_left.SetTriggerThreshold(triggerThreshold);
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_right.SetTriggerThreshold(triggerThreshold);
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}
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public SDL2JoyConPair GetJoyConPair(List<string> _gamepadsIds)
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{
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this.Dispose();
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var gamepadNames = _gamepadsIds.Where(gamepadId => gamepadId != Id).Select((gamepadId, index) => SDL_GameControllerNameForIndex(index)).ToList();
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int leftIndex = gamepadNames.IndexOf(leftName);
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int rightIndex = gamepadNames.IndexOf(rightName);
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if (leftIndex != -1 && rightIndex != -1)
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{
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nint leftGamepadHandle = SDL_GameControllerOpen(leftIndex);
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nint rightGamepadHandle = SDL_GameControllerOpen(rightIndex);
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_left = new SDL2Gamepad(leftGamepadHandle, _gamepadsIds[leftIndex]);
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_right = new SDL2Gamepad(rightGamepadHandle, _gamepadsIds[leftIndex]);
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return this;
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}
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return null;
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}
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}
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}
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