using System; using System.IO; using System.Runtime.CompilerServices; using System.Runtime.InteropServices; using Ryujinx.Common.Logging; using Ryujinx.HLE.HOS.Services.Hid; using Ryujinx.HLE.HOS.Services.Hid.Types; using Ryujinx.HLE.HOS.Services.Am.AppletAE; using static Ryujinx.HLE.HOS.Services.Hid.HidServer.HidUtils; namespace Ryujinx.HLE.HOS.Applets { internal class ControllerApplet : IApplet { private Horizon _system; private AppletSession _normalSession; public event EventHandler AppletStateChanged; public ControllerApplet(Horizon system) { _system = system; } public ResultCode Start(AppletSession normalSession, AppletSession interactiveSession) { _normalSession = normalSession; byte[] launchParams = _normalSession.Pop(); byte[] controllerSupportArgPrivate = _normalSession.Pop(); ControllerSupportArgPrivate privateArg = IApplet.ReadStruct<ControllerSupportArgPrivate>(controllerSupportArgPrivate); Logger.Stub?.PrintStub(LogClass.ServiceHid, $"ControllerApplet ArgPriv {privateArg.PrivateSize} {privateArg.ArgSize} {privateArg.Mode} " + $"HoldType:{(NpadJoyHoldType)privateArg.NpadJoyHoldType} StyleSets:{(ControllerType)privateArg.NpadStyleSet}"); if (privateArg.Mode != ControllerSupportMode.ShowControllerSupport) { _normalSession.Push(BuildResponse()); // Dummy response for other modes AppletStateChanged?.Invoke(this, null); return ResultCode.Success; } byte[] controllerSupportArg = _normalSession.Pop(); ControllerSupportArgHeader argHeader; if (privateArg.ArgSize == Marshal.SizeOf<ControllerSupportArgV7>()) { ControllerSupportArgV7 arg = IApplet.ReadStruct<ControllerSupportArgV7>(controllerSupportArg); argHeader = arg.Header; Logger.Stub?.PrintStub(LogClass.ServiceHid, $"ControllerSupportArg Version 7 EnableExplainText={arg.EnableExplainText != 0}"); // Read enable text here? } else if (privateArg.ArgSize == Marshal.SizeOf<ControllerSupportArgVPre7>()) { ControllerSupportArgVPre7 arg = IApplet.ReadStruct<ControllerSupportArgVPre7>(controllerSupportArg); argHeader = arg.Header; Logger.Stub?.PrintStub(LogClass.ServiceHid, $"ControllerSupportArg Version Pre-7 EnableExplainText={arg.EnableExplainText != 0}"); // Read enable text here? } else { Logger.Stub?.PrintStub(LogClass.ServiceHid, $"ControllerSupportArg Version Unknown"); argHeader = IApplet.ReadStruct<ControllerSupportArgHeader>(controllerSupportArg); // Read just the header } int playerMin = argHeader.PlayerCountMin; int playerMax = argHeader.PlayerCountMax; bool singleMode = argHeader.EnableSingleMode != 0; Logger.Stub?.PrintStub(LogClass.ServiceHid, $"ControllerApplet Arg {playerMin} {playerMax} {argHeader.EnableTakeOverConnection} {argHeader.EnableSingleMode}"); if (singleMode) { // Applications can set an arbitrary player range even with SingleMode, so clamp it playerMin = playerMax = 1; } int configuredCount = 0; PlayerIndex primaryIndex = PlayerIndex.Unknown; while (!_system.Device.Hid.Npads.Validate(playerMin, playerMax, (ControllerType)privateArg.NpadStyleSet, out configuredCount, out primaryIndex)) { ControllerAppletUiArgs uiArgs = new ControllerAppletUiArgs { PlayerCountMin = playerMin, PlayerCountMax = playerMax, SupportedStyles = (ControllerType)privateArg.NpadStyleSet, SupportedPlayers = _system.Device.Hid.Npads.GetSupportedPlayers(), IsDocked = _system.State.DockedMode }; if (!_system.Device.UiHandler.DisplayMessageDialog(uiArgs)) { break; } } ControllerSupportResultInfo result = new ControllerSupportResultInfo { PlayerCount = (sbyte)configuredCount, SelectedId = (uint)GetNpadIdTypeFromIndex(primaryIndex) }; Logger.Stub?.PrintStub(LogClass.ServiceHid, $"ControllerApplet ReturnResult {result.PlayerCount} {result.SelectedId}"); _normalSession.Push(BuildResponse(result)); AppletStateChanged?.Invoke(this, null); _system.ReturnFocus(); return ResultCode.Success; } public ResultCode GetResult() { return ResultCode.Success; } private byte[] BuildResponse(ControllerSupportResultInfo result) { using (MemoryStream stream = new MemoryStream()) using (BinaryWriter writer = new BinaryWriter(stream)) { writer.Write(MemoryMarshal.AsBytes(MemoryMarshal.CreateReadOnlySpan(ref result, Unsafe.SizeOf<ControllerSupportResultInfo>()))); return stream.ToArray(); } } private byte[] BuildResponse() { using (MemoryStream stream = new MemoryStream()) using (BinaryWriter writer = new BinaryWriter(stream)) { writer.Write((ulong)ResultCode.Success); return stream.ToArray(); } } } }