HLE: Implemented ILockAccessor and ICommonStateGetter commands and stubs for Virtual Boy – Nintendo Classics #3

- Moves emulation past the initial frame by providing the necessary inputs the game expects. Apparently games like to spin until they get what they want.

Co-authored-by: Mythrax <mythrax@mythrax-rs.org>

src/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ICommonStateGetter.cs

@@ -12,12 +12,23 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
 {
     class ICommonStateGetter : DisposableIpcService
     {
+        // Nintendo serves the VR goggle commands based on Title ID, apparently.
+        private static ReadOnlySpan<ulong> _supportedVRGoggleTitles =>
+        [
+            0x0100CA001D972000, // Nintendo Classics: Virtual Boy NSO
+            0x0100BFC01D976000  // Nintendo Classics: Virtual Boy NSO
+        ];
+        
+        private int _resolutionWidth = 1280;
+        private int _resolutionHeight = 720;
+        
         private readonly ServiceCtx _context;
 
         private readonly Apm.ManagerServer _apmManagerServer;
         private readonly Apm.SystemManagerServer _apmSystemManagerServer;
 
         private bool _vrModeEnabled;
+        private bool _vrMode3dEnabled;
 #pragma warning disable CS0414, IDE0052 // Remove unread private member
         private bool _lcdBacklighOffEnabled;
         private bool _requestExitToLibraryAppletAtExecuteNextProgramEnabled;
@@ -153,6 +164,47 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
             return ResultCode.Success;
         }
 
+        [CommandCmif(30)]
+        // GetHomeButtonReaderLockAccessor() -> nn::am::service::ILockAccessor
+        public ResultCode GetHomeButtonReaderLockAccessor(ServiceCtx context)
+        {
+            // We currently do not have any home button functionality, so it's fine to stub this for now.
+            // Similar to using GetReaderLockAccessorEx() with inval=0.
+            Logger.Stub?.PrintStub(LogClass.ServiceAm);
+            MakeObject(context, new ILockAccessor(context));
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(31)] // 2.0.0 +
+        // GetReaderLockAccessorEx(uint unknown) -> nn::am::service::ILockAccessor
+        public ResultCode GetReaderLockAccessorEx(ServiceCtx context)
+        {
+            uint unknown = context.RequestData.ReadUInt32();
+            Logger.Stub?.PrintStub(LogClass.ServiceAm, new { unknown });
+            if (unknown < 0 || unknown > 3)
+            {
+                throw new ArgumentOutOfRangeException(nameof(unknown));
+            }
+            
+            MakeObject(context, new ILockAccessor(context));
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(32)] // 2.0.0+
+        // GetWriterLockAccessorEx(uint unknown) -> nn::am::service::ILockAccessor
+        public ResultCode GetWriterLockAccessorEx(ServiceCtx context)
+        {
+            uint unknown = context.RequestData.ReadUInt32();
+            Logger.Stub?.PrintStub(LogClass.ServiceAm, new { unknown });
+            if (unknown < 0 || unknown > 3)
+            {
+                throw new ArgumentOutOfRangeException(nameof(unknown));
+            }
+            
+            MakeObject(context, new ILockAccessor(context));
+            return ResultCode.Success;
+        }
+
         [CommandCmif(50)] // 3.0.0+
         // IsVrModeEnabled() -> b8
         public ResultCode IsVrModeEnabled(ServiceCtx context)
@@ -177,8 +229,8 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
         // SetLcdBacklighOffEnabled(b8)
         public ResultCode SetLcdBacklighOffEnabled(ServiceCtx context)
         {
-            // NOTE: Service sets a private field here, maybe this field is used somewhere else to turned off the backlight.
-            //       Since we don't support backlight, it's fine to do nothing.
+            // NOTE: Service sets a private field here, maybe this field is used somewhere else to turn off the backlight.
+            //       Since we don't support the backlight feature, it's fine to stub it.
 
             _lcdBacklighOffEnabled = context.RequestData.ReadBoolean();
 
@@ -298,18 +350,43 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
             return (ResultCode)_apmSystemManagerServer.GetCurrentPerformanceConfiguration(context);
         }
 
+        [CommandCmif(130)] // 21.0.0+
+        // EnableStartupLogoDisappearedMessage()
+        public ResultCode EnableStartupLogoDisappearedMessage(ServiceCtx context)
+        {
+            // NOTE: Service only delivers the message once the startup logo has actually
+            //       disappeared. We never display one, so it is already deliverable. Callers
+            //       gate their first frame on this message and hang without it.
+
+            AppletStateMgr appletState = context.Device.System.AppletState;
+
+            appletState.Messages.Enqueue(AppletMessage.StartupLogoDisappeared);
+            appletState.MessageEvent.ReadableEvent.Signal();
+
+            return ResultCode.Success;
+        }
+
         [CommandCmif(300)] // 9.0.0+
         // GetSettingsPlatformRegion() -> u8
         public ResultCode GetSettingsPlatformRegion(ServiceCtx context)
         {
             PlatformRegion platformRegion = context.Device.System.State.DesiredRegionCode == (uint)RegionCode.China ? PlatformRegion.China : PlatformRegion.Global;
-
+            
             // FIXME: Call set:sys GetPlatformRegion
             context.ResponseData.Write((byte)platformRegion);
 
             return ResultCode.Success;
         }
 
+        [CommandCmif(610)] // 21.0.0+
+        // UnknownCommand610(long unknown)
+        public ResultCode UnknownCommand610(ServiceCtx context)
+        {
+            long unknown = context.RequestData.ReadInt64();
+            Logger.Stub?.PrintStub(LogClass.ServiceAm, new { unknown });
+            return ResultCode.Success;
+        }
+
         [CommandCmif(900)] // 11.0.0+
         // SetRequestExitToLibraryAppletAtExecuteNextProgramEnabled()
         public ResultCode SetRequestExitToLibraryAppletAtExecuteNextProgramEnabled(ServiceCtx context)
@@ -320,6 +397,100 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
             return ResultCode.Success;
         }
 
+        [CommandCmif(1000)] // 19.0.0+
+        // BeginVrMode3d()
+        public ResultCode BeginVrMode3d(ServiceCtx context)
+        {
+            // NOTE: Service also applies a stereo scale to the goggle display, which we don't
+            //       model, so only the state is kept here.
+
+            _vrMode3dEnabled = true;
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(1001)] // 19.0.0+
+        // EndVrMode3d()
+        public ResultCode EndVrMode3d(ServiceCtx context)
+        {
+            _vrMode3dEnabled = false;
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(1002)] // 19.0.0+
+        // IsVrModeEnabled3d() -> b8
+        public ResultCode IsVrModeEnabled3d(ServiceCtx context)
+        {
+            context.ResponseData.Write(_vrMode3dEnabled);
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(1003)] // 21.0.0+
+        // GetVrLaboGoggleViewport() -> (s32 x, s32 y, s32 width, s32 height)
+        public ResultCode GetVrLaboGoggleViewport(ServiceCtx context)
+        {
+            if (!IsVrLaboGoggleSupportedTitle(context))
+            {
+                return ResultCode.ObjectInvalid;
+            }
+            
+            int VrDisplayCoordinateX = 0;
+            int VrDisplayCoordinateY = 0;
+            int VrDisplayWidth = _resolutionWidth;
+            int VrDisplayHeight = _resolutionHeight;
+
+            context.ResponseData.Write(VrDisplayCoordinateX);
+            context.ResponseData.Write(VrDisplayCoordinateY);
+            context.ResponseData.Write(VrDisplayWidth);
+            context.ResponseData.Write(VrDisplayHeight);
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(1004)] // 21.0.0+
+        // GetPanelPhysicalSizeForSpecificTitle() -> (f32 width, f32 height)
+        public ResultCode GetPanelPhysicalSizeForSpecificTitle(ServiceCtx context)
+        {
+            if (!IsVrLaboGoggleSupportedTitle(context))
+            {
+                return ResultCode.ObjectInvalid;
+            }
+            
+            // The switch provides micrometres, but the command reports millimetres.
+            // 6.2 inch 16:9 panel.
+            float PanelPhysicalWidthMicroMeters = 137250f;
+            float PanelPhysicalHeightMicroMeters = 77200f;
+            
+            context.ResponseData.Write(PanelPhysicalWidthMicroMeters / 1000f);
+            context.ResponseData.Write(PanelPhysicalHeightMicroMeters / 1000f);
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(1005)] // 21.0.0+
+        // GetPanelResolutionForSpecificTitle() -> (s32 width, s32 height)
+        public ResultCode GetPanelResolutionForSpecificTitle(ServiceCtx context)
+        {
+            if (!IsVrLaboGoggleSupportedTitle(context))
+            {
+                return ResultCode.ObjectInvalid;
+            }
+            
+            context.ResponseData.Write(_resolutionWidth);
+            context.ResponseData.Write(_resolutionHeight);
+
+            return ResultCode.Success;
+        }
+
+        private static bool IsVrLaboGoggleSupportedTitle(ServiceCtx context)
+        {
+            ulong programId = context.Device.Processes.ActiveApplication.ProgramId;
+
+            return _supportedVRGoggleTitles.Contains(programId);
+        }
+
         protected override void Dispose(bool isDisposing)
         {
             if (isDisposing)

src/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/ILockAccessor.cs

@@ -0,0 +1,80 @@
+using Ryujinx.Common.Logging;
+using Ryujinx.HLE.HOS.Ipc;
+using Ryujinx.HLE.HOS.Kernel.Threading;
+using Ryujinx.Horizon.Common;
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.SystemAppletProxy
+{
+    class ILockAccessor : IpcService
+    {
+        private readonly ServiceCtx _context;
+
+        private readonly Apm.ManagerServer _apmManagerServer;
+        private readonly Apm.SystemManagerServer _apmSystemManagerServer;
+        
+        private readonly KEvent _lockEvent;
+        private int _lockEventHandle;
+
+        public ILockAccessor(ServiceCtx context)
+        {
+            
+            _context = context;
+            
+            _apmManagerServer = new Apm.ManagerServer(context);
+            _apmSystemManagerServer = new Apm.SystemManagerServer(context);
+
+            _lockEvent = new KEvent(context.Device.System.KernelContext);
+        }
+
+        [CommandCmif(1)]
+        // TryLock(unknown u8 bool) -> unknown u8 bool
+        public ResultCode TryLock(ServiceCtx context)
+        {
+            // Official sw only uses inflag=false.
+            // Official sw just closes the output handle.
+            // The input flag controls whether this returns the output handle. 
+            bool unknown = context.RequestData.ReadBoolean();
+            Logger.Stub?.PrintStub(LogClass.ServiceAm, new { unknown });
+            
+            context.ResponseData.Write(false);
+            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_lockEventHandle);
+            
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(2)]
+        // Unlock()
+        public ResultCode Unlock(ServiceCtx context)
+        {
+            Logger.Stub?.PrintStub(LogClass.ServiceAm);
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(3)]
+        // GetEvent() -> EventHandle w/ autoclear = false
+        public ResultCode GetEvent(ServiceCtx context)
+        {
+            if (_lockEventHandle == 0)
+            {
+                if (context.Process.HandleTable.GenerateHandle(_lockEvent.ReadableEvent, out _lockEventHandle) != Result.Success)
+                {
+                    throw new InvalidOperationException("Out of handles!");
+                }
+            }
+            
+            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_lockEventHandle);
+            Logger.Stub?.PrintStub(LogClass.ServiceAm);
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(4)] // 10.0.0+
+        // IsLocked() -> unknown u8 bool
+        public ResultCode IsLocked(ServiceCtx context)
+        {
+            Logger.Stub?.PrintStub(LogClass.ServiceAm);
+            context.ResponseData.Write(false);
+            return ResultCode.Success;
+        }
+    }
+}

src/Ryujinx.HLE/HOS/Services/Am/AppletAE/AllSystemAppletProxiesService/SystemAppletProxy/Types/AppletMessage.cs

@@ -32,5 +32,6 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
         DetectShortPressingCaptureButton = 90,
         AlbumScreenShotTaken = 92,
         AlbumRecordingSaved = 93,
+        StartupLogoDisappeared = 95, // 21.0.0+
     }
 }