Files
Ryujinx/src/Ryujinx.Input.SDL2/SDL2JoyConPair.cs
2024-12-28 09:07:22 +08:00

285 lines
13 KiB
C#

using Ryujinx.Common.Configuration.Hid;
using Ryujinx.Common.Configuration.Hid.Controller;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Threading;
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
];
private readonly record struct ButtonMappingEntry(GamepadButtonInputId To, GamepadButtonInputId From)
{
public bool IsValid => To is not GamepadButtonInputId.Unbound && From is not GamepadButtonInputId.Unbound;
}
private readonly List<ButtonMappingEntry> _buttonsUserMapping = new(20);
private readonly Lock _userMappingLock = new();
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)";
private const string LeftName = "Nintendo Switch Joy-Con (L)";
private const string RightName = "Nintendo Switch Joy-Con (R)";
public bool IsConnected => left is { IsConnected: true } && right is { IsConnected: true };
public void Dispose()
{
left?.Dispose();
right?.Dispose();
}
public GamepadStateSnapshot GetMappedStateSnapshot()
{
GamepadStateSnapshot rawState = GetStateSnapshot();
GamepadStateSnapshot result = default;
lock (_userMappingLock)
{
if (_buttonsUserMapping.Count == 0)
return rawState;
// ReSharper disable once ForeachCanBePartlyConvertedToQueryUsingAnotherGetEnumerator
foreach (ButtonMappingEntry entry in _buttonsUserMapping)
{
if (!entry.IsValid)
continue;
// Do not touch state of button already pressed
if (!result.IsPressed(entry.To))
{
result.SetPressed(entry.To, rawState.IsPressed(entry.From));
}
}
(float leftStickX, float leftStickY) = rawState.GetStick(_stickUserMapping[(int)StickInputId.Left]);
(float rightStickX, float rightStickY) = rawState.GetStick(_stickUserMapping[(int)StickInputId.Right]);
result.SetStick(StickInputId.Left, leftStickX, leftStickY);
result.SetStick(StickInputId.Right, rightStickX, rightStickY);
}
return result;
}
public Vector3 GetMotionData(MotionInputId inputId)
{
Vector3 motionData;
switch (inputId)
{
case MotionInputId.Accelerometer:
case MotionInputId.Gyroscope:
motionData = left.GetMotionData(inputId);
return new Vector3(-motionData.Z, motionData.Y, motionData.X);
case MotionInputId.SecondAccelerometer:
motionData = right.GetMotionData(MotionInputId.Accelerometer);
return new Vector3(motionData.Z, motionData.Y, -motionData.X);
case MotionInputId.SecondGyroscope:
motionData = right.GetMotionData(MotionInputId.Gyroscope);
return new Vector3(motionData.Z, motionData.Y, -motionData.X);
case MotionInputId.Invalid:
default:
return Vector3.Zero;
}
}
public GamepadStateSnapshot GetStateSnapshot()
{
return IGamepad.GetStateSnapshot(this);
}
public (float, float) GetStick(StickInputId inputId)
{
switch (inputId)
{
case StickInputId.Left:
{
(float x, float y) = left.GetStick(StickInputId.Left);
return (y, -x);
}
case StickInputId.Right:
{
(float x, float y) = right.GetStick(StickInputId.Left);
return (-y, x);
}
case StickInputId.Unbound:
case StickInputId.Count:
default:
return (0, 0);
}
}
public bool IsPressed(GamepadButtonInputId inputId)
{
return inputId switch
{
GamepadButtonInputId.LeftStick => left.IsPressed(GamepadButtonInputId.LeftStick),
GamepadButtonInputId.DpadUp => left.IsPressed(GamepadButtonInputId.Y),
GamepadButtonInputId.DpadDown => left.IsPressed(GamepadButtonInputId.A),
GamepadButtonInputId.DpadLeft => left.IsPressed(GamepadButtonInputId.B),
GamepadButtonInputId.DpadRight => left.IsPressed(GamepadButtonInputId.X),
GamepadButtonInputId.Minus => left.IsPressed(GamepadButtonInputId.Start),
GamepadButtonInputId.LeftShoulder => left.IsPressed(GamepadButtonInputId.Paddle2),
GamepadButtonInputId.LeftTrigger => left.IsPressed(GamepadButtonInputId.Paddle4),
GamepadButtonInputId.SingleRightTrigger0 => left.IsPressed(GamepadButtonInputId.LeftShoulder),
GamepadButtonInputId.SingleLeftTrigger0 => left.IsPressed(GamepadButtonInputId.RightShoulder),
GamepadButtonInputId.RightStick => right.IsPressed(GamepadButtonInputId.LeftStick),
GamepadButtonInputId.A => right.IsPressed(GamepadButtonInputId.B),
GamepadButtonInputId.B => right.IsPressed(GamepadButtonInputId.Y),
GamepadButtonInputId.X => right.IsPressed(GamepadButtonInputId.A),
GamepadButtonInputId.Y => right.IsPressed(GamepadButtonInputId.X),
GamepadButtonInputId.Plus => right.IsPressed(GamepadButtonInputId.Start),
GamepadButtonInputId.RightShoulder => right.IsPressed(GamepadButtonInputId.Paddle1),
GamepadButtonInputId.RightTrigger => right.IsPressed(GamepadButtonInputId.Paddle3),
GamepadButtonInputId.SingleRightTrigger1 => right.IsPressed(GamepadButtonInputId.LeftShoulder),
GamepadButtonInputId.SingleLeftTrigger1 => right.IsPressed(GamepadButtonInputId.RightShoulder),
_ => false
};
}
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)
{
lock (_userMappingLock)
{
_configuration = (StandardControllerInputConfig)configuration;
left.SetConfiguration(configuration);
right.SetConfiguration(configuration);
_buttonsUserMapping.Clear();
// First update sticks
_stickUserMapping[(int)StickInputId.Left] = (StickInputId)_configuration.LeftJoyconStick.Joystick;
_stickUserMapping[(int)StickInputId.Right] = (StickInputId)_configuration.RightJoyconStick.Joystick;
// Then left joycon
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.LeftStick,
(GamepadButtonInputId)_configuration.LeftJoyconStick.StickButton));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.DpadUp,
(GamepadButtonInputId)_configuration.LeftJoycon.DpadUp));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.DpadDown,
(GamepadButtonInputId)_configuration.LeftJoycon.DpadDown));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.DpadLeft,
(GamepadButtonInputId)_configuration.LeftJoycon.DpadLeft));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.DpadRight,
(GamepadButtonInputId)_configuration.LeftJoycon.DpadRight));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.Minus,
(GamepadButtonInputId)_configuration.LeftJoycon.ButtonMinus));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.LeftShoulder,
(GamepadButtonInputId)_configuration.LeftJoycon.ButtonL));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.LeftTrigger,
(GamepadButtonInputId)_configuration.LeftJoycon.ButtonZl));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.SingleRightTrigger0,
(GamepadButtonInputId)_configuration.LeftJoycon.ButtonSr));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.SingleLeftTrigger0,
(GamepadButtonInputId)_configuration.LeftJoycon.ButtonSl));
// Finally right joycon
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.RightStick,
(GamepadButtonInputId)_configuration.RightJoyconStick.StickButton));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.A,
(GamepadButtonInputId)_configuration.RightJoycon.ButtonA));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.B,
(GamepadButtonInputId)_configuration.RightJoycon.ButtonB));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.X,
(GamepadButtonInputId)_configuration.RightJoycon.ButtonX));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.Y,
(GamepadButtonInputId)_configuration.RightJoycon.ButtonY));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.Plus,
(GamepadButtonInputId)_configuration.RightJoycon.ButtonPlus));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.RightShoulder,
(GamepadButtonInputId)_configuration.RightJoycon.ButtonR));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.RightTrigger,
(GamepadButtonInputId)_configuration.RightJoycon.ButtonZr));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.SingleRightTrigger1,
(GamepadButtonInputId)_configuration.RightJoycon.ButtonSr));
_buttonsUserMapping.Add(new ButtonMappingEntry(GamepadButtonInputId.SingleLeftTrigger1,
(GamepadButtonInputId)_configuration.RightJoycon.ButtonSl));
SetTriggerThreshold(_configuration.TriggerThreshold);
}
}
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(LeftName);
int rightIndex = gamepadNames.IndexOf(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 SDL2Gamepad(leftGamepadHandle, gamepadsIds[leftIndex]),
new SDL2Gamepad(rightGamepadHandle, gamepadsIds[rightIndex]));
}
}
}