Treat NpadIdType < 0 as invalid. Filter invalid SupportedPlayers inside IHidServer.SetSupportedNpadIdType(). (#4377)

Co-authored-by: Logan Stromberg <lostromb@microsoft.com>

Ryujinx.Ava/UI/Helpers/MetalHelper.cs

@@ -1,127 +0,0 @@
-using System;
-using System.Runtime.Versioning;
-using System.Runtime.InteropServices;
-using Avalonia;
-
-namespace Ryujinx.Ava.UI.Helpers
-{
-    public delegate void UpdateBoundsCallbackDelegate(Rect rect);
-
-    [SupportedOSPlatform("macos")]
-    static partial class MetalHelper
-    {
-        private const string LibObjCImport = "/usr/lib/libobjc.A.dylib";
-
-        private struct Selector
-        {
-            public readonly IntPtr NativePtr;
-
-            public unsafe Selector(string value)
-            {
-                int size = System.Text.Encoding.UTF8.GetMaxByteCount(value.Length);
-                byte* data = stackalloc byte[size];
-
-                fixed (char* pValue = value)
-                {
-                    System.Text.Encoding.UTF8.GetBytes(pValue, value.Length, data, size);
-                }
-
-                NativePtr = sel_registerName(data);
-            }
-
-            public static implicit operator Selector(string value) => new Selector(value);
-        }
-
-        private static unsafe IntPtr GetClass(string value)
-        {
-            int size = System.Text.Encoding.UTF8.GetMaxByteCount(value.Length);
-            byte* data = stackalloc byte[size];
-
-            fixed (char* pValue = value)
-            {
-                System.Text.Encoding.UTF8.GetBytes(pValue, value.Length, data, size);
-            }
-
-            return objc_getClass(data);
-        }
-
-        private struct NSPoint
-        {
-            public double X;
-            public double Y;
-
-            public NSPoint(double x, double y)
-            {
-                X = x;
-                Y = y;
-            }
-        }
-
-        private struct NSRect
-        {
-            public NSPoint Pos;
-            public NSPoint Size;
-
-            public NSRect(double x, double y, double width, double height)
-            {
-                Pos = new NSPoint(x, y);
-                Size = new NSPoint(width, height);
-            }
-        }
-
-        public static IntPtr GetMetalLayer(out IntPtr nsView, out UpdateBoundsCallbackDelegate updateBounds)
-        {
-            // Create a new CAMetalLayer.
-            IntPtr layerClass = GetClass("CAMetalLayer");
-            IntPtr metalLayer = IntPtr_objc_msgSend(layerClass, "alloc");
-            objc_msgSend(metalLayer, "init");
-
-            // Create a child NSView to render into.
-            IntPtr nsViewClass = GetClass("NSView");
-            IntPtr child = IntPtr_objc_msgSend(nsViewClass, "alloc");
-            objc_msgSend(child, "init", new NSRect(0, 0, 0, 0));
-
-            // Make its renderer our metal layer.
-            objc_msgSend(child, "setWantsLayer:", (byte)1);
-            objc_msgSend(child, "setLayer:", metalLayer);
-            objc_msgSend(metalLayer, "setContentsScale:", Program.DesktopScaleFactor);
-
-            // Ensure the scale factor is up to date.
-            updateBounds = (Rect rect) => {
-                objc_msgSend(metalLayer, "setContentsScale:", Program.DesktopScaleFactor);
-            };
-
-            nsView = child;
-            return metalLayer;
-        }
-
-        public static void DestroyMetalLayer(IntPtr nsView, IntPtr metalLayer)
-        {
-            // TODO
-        }
-
-        [LibraryImport(LibObjCImport)]
-        private static unsafe partial IntPtr sel_registerName(byte* data);
-
-        [LibraryImport(LibObjCImport)]
-        private static unsafe partial IntPtr objc_getClass(byte* data);
-
-        [LibraryImport(LibObjCImport)]
-        private static partial void objc_msgSend(IntPtr receiver, Selector selector);
-
-        [LibraryImport(LibObjCImport)]
-        private static partial void objc_msgSend(IntPtr receiver, Selector selector, byte value);
-
-        [LibraryImport(LibObjCImport)]
-        private static partial void objc_msgSend(IntPtr receiver, Selector selector, IntPtr value);
-
-        [LibraryImport(LibObjCImport)]
-        private static partial void objc_msgSend(IntPtr receiver, Selector selector, NSRect point);
-
-        [LibraryImport(LibObjCImport)]
-        private static partial void objc_msgSend(IntPtr receiver, Selector selector, double value);
-
-        [LibraryImport(LibObjCImport, EntryPoint = "objc_msgSend")]
-        private static partial IntPtr IntPtr_objc_msgSend(IntPtr receiver, Selector selector);
-    }
-}

Ryujinx.Ava/UI/Renderer/EmbeddedWindow.cs

@@ -2,9 +2,9 @@ using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Input;
 using Avalonia.Platform;
-using Ryujinx.Ava.UI.Helpers;
 using Ryujinx.Common.Configuration;
 using Ryujinx.Ui.Common.Configuration;
+using Ryujinx.Ui.Common.Helper;
 using SPB.Graphics;
 using SPB.Platform;
 using SPB.Platform.GLX;
@@ -30,6 +30,7 @@ namespace Ryujinx.Ava.UI.Renderer
         protected IntPtr NsView       { get; set; }
         protected IntPtr MetalLayer   { get; set; }
 
+        public delegate void UpdateBoundsCallbackDelegate(Rect rect);
         private UpdateBoundsCallbackDelegate _updateBoundsCallback;
 
         public event EventHandler<IntPtr> WindowCreated;
@@ -237,8 +238,29 @@ namespace Ryujinx.Ava.UI.Renderer
         [SupportedOSPlatform("macos")]
         IPlatformHandle CreateMacOS()
         {
-            MetalLayer = MetalHelper.GetMetalLayer(out IntPtr nsView, out _updateBoundsCallback);
+            // Create a new CAMetalLayer.
+            IntPtr layerClass = ObjectiveC.objc_getClass("CAMetalLayer");
+            IntPtr metalLayer = ObjectiveC.IntPtr_objc_msgSend(layerClass, "alloc");
+            ObjectiveC.objc_msgSend(metalLayer, "init");
 
+            // Create a child NSView to render into.
+            IntPtr nsViewClass = ObjectiveC.objc_getClass("NSView");
+            IntPtr child = ObjectiveC.IntPtr_objc_msgSend(nsViewClass, "alloc");
+            ObjectiveC.objc_msgSend(child, "init", new ObjectiveC.NSRect(0, 0, 0, 0));
+
+            // Make its renderer our metal layer.
+            ObjectiveC.objc_msgSend(child, "setWantsLayer:", 1);
+            ObjectiveC.objc_msgSend(child, "setLayer:", metalLayer);
+            ObjectiveC.objc_msgSend(metalLayer, "setContentsScale:", Program.DesktopScaleFactor);
+
+            // Ensure the scale factor is up to date.
+            _updateBoundsCallback = rect =>
+            {
+                ObjectiveC.objc_msgSend(metalLayer, "setContentsScale:", Program.DesktopScaleFactor);
+            };
+
+            IntPtr nsView = child;
+            MetalLayer = metalLayer;
             NsView = nsView;
 
             return new PlatformHandle(nsView, "NSView");
@@ -260,7 +282,7 @@ namespace Ryujinx.Ava.UI.Renderer
         [SupportedOSPlatform("macos")]
         void DestroyMacOS()
         {
-            MetalHelper.DestroyMetalLayer(NsView, MetalLayer);
+            // TODO
         }
     }
 }

Ryujinx.Graphics.Gpu/Image/TextureCache.cs

@@ -474,6 +474,13 @@ namespace Ryujinx.Graphics.Gpu.Image
             {
                 address = memoryManager.Translate(info.GpuAddress);
 
+                // If the start address is unmapped, let's try to find a page of memory that is mapped.
+                if (address == MemoryManager.PteUnmapped)
+                {
+                    address = memoryManager.TranslateFirstMapped(info.GpuAddress, (ulong)info.CalculateSizeInfo(layerSize).TotalSize);
+                }
+
+                // If address is still invalid, the texture is fully unmapped, so it has no data, just return null.
                 if (address == MemoryManager.PteUnmapped)
                 {
                     return null;

Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs

@@ -583,6 +583,38 @@ namespace Ryujinx.Graphics.Gpu.Memory
             return UnpackPaFromPte(pte) + (va & PageMask);
         }
 
+        /// <summary>
+        /// Translates a GPU virtual address to a CPU virtual address on the first mapped page of memory
+        /// on the specified region.
+        /// If no page is mapped on the specified region, <see cref="PteUnmapped"/> is returned.
+        /// </summary>
+        /// <param name="va">GPU virtual address to be translated</param>
+        /// <param name="size">Size of the range to be translated</param>
+        /// <returns>CPU virtual address, or <see cref="PteUnmapped"/> if unmapped</returns>
+        public ulong TranslateFirstMapped(ulong va, ulong size)
+        {
+            if (!ValidateAddress(va))
+            {
+                return PteUnmapped;
+            }
+
+            ulong endVa = va + size;
+
+            ulong pte = GetPte(va);
+
+            for (; va < endVa && pte == PteUnmapped; va += PageSize - (va & PageMask))
+            {
+                pte = GetPte(va);
+            }
+
+            if (pte == PteUnmapped)
+            {
+                return PteUnmapped;
+            }
+
+            return UnpackPaFromPte(pte) + (va & PageMask);
+        }
+
         /// <summary>
         /// Gets the kind of a given memory page.
         /// This might indicate the type of resource that can be allocated on the page, and also texture tiling.

Ryujinx.Graphics.OpenGL/Program.cs

@@ -10,6 +10,8 @@ namespace Ryujinx.Graphics.OpenGL
 {
     class Program : IProgram
     {
+        private const int MaxShaderLogLength = 2048;
+
         public int Handle { get; private set; }
 
         public bool IsLinked
@@ -115,9 +117,16 @@ namespace Ryujinx.Graphics.OpenGL
 
             if (status == 0)
             {
-                // Use GL.GetProgramInfoLog(Handle), it may be too long to print on the log.
                 _status = ProgramLinkStatus.Failure;
-                Logger.Debug?.Print(LogClass.Gpu, "Shader linking failed.");
+
+                string log = GL.GetProgramInfoLog(Handle);
+
+                if (log.Length > MaxShaderLogLength)
+                {
+                    log = log.Substring(0, MaxShaderLogLength) + "...";
+                }
+
+                Logger.Warning?.Print(LogClass.Gpu, $"Shader linking failed: \n{log}");
             }
             else
             {

Ryujinx.Graphics.Shader/CodeGen/Spirv/Declarations.cs

@@ -397,6 +397,31 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
         private static void DeclareInputAttributes(CodeGenContext context, StructuredProgramInfo info, bool perPatch)
         {
             bool iaIndexing = context.Config.UsedFeatures.HasFlag(FeatureFlags.IaIndexing);
+
+            if (iaIndexing && !perPatch)
+            {
+                var attrType = context.TypeVector(context.TypeFP32(), (LiteralInteger)4);
+                attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), (LiteralInteger)MaxAttributes));
+
+                if (context.Config.Stage == ShaderStage.Geometry)
+                {
+                    attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), (LiteralInteger)context.InputVertices));
+                }
+
+                var spvType = context.TypePointer(StorageClass.Input, attrType);
+                var spvVar = context.Variable(spvType, StorageClass.Input);
+
+                if (context.Config.PassthroughAttributes != 0 && context.Config.GpuAccessor.QueryHostSupportsGeometryShaderPassthrough())
+                {
+                    context.Decorate(spvVar, Decoration.PassthroughNV);
+                }
+
+                context.Decorate(spvVar, Decoration.Location, (LiteralInteger)0);
+
+                context.AddGlobalVariable(spvVar);
+                context.InputsArray = spvVar;
+            }
+
             var inputs = perPatch ? info.InputsPerPatch : info.Inputs;
 
             foreach (int attr in inputs)
@@ -410,60 +435,56 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
 
                 if (iaIndexing && isUserAttr && !perPatch)
                 {
-                    if (context.InputsArray == null)
-                    {
-                        var attrType = context.TypeVector(context.TypeFP32(), (LiteralInteger)4);
-                        attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), (LiteralInteger)MaxAttributes));
-
-                        if (context.Config.Stage == ShaderStage.Geometry)
-                        {
-                            attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), (LiteralInteger)context.InputVertices));
-                        }
-
-                        var spvType = context.TypePointer(StorageClass.Input, attrType);
-                        var spvVar = context.Variable(spvType, StorageClass.Input);
-
-                        if (context.Config.PassthroughAttributes != 0 && context.Config.GpuAccessor.QueryHostSupportsGeometryShaderPassthrough())
-                        {
-                            context.Decorate(spvVar, Decoration.PassthroughNV);
-                        }
-
-                        context.Decorate(spvVar, Decoration.Location, (LiteralInteger)0);
-
-                        context.AddGlobalVariable(spvVar);
-                        context.InputsArray = spvVar;
-                    }
+                    continue;
                 }
-                else
+
+                PixelImap iq = PixelImap.Unused;
+
+                if (context.Config.Stage == ShaderStage.Fragment)
                 {
-                    PixelImap iq = PixelImap.Unused;
-
-                    if (context.Config.Stage == ShaderStage.Fragment)
+                    if (attr >= AttributeConsts.UserAttributeBase && attr < AttributeConsts.UserAttributeEnd)
                     {
-                        if (attr >= AttributeConsts.UserAttributeBase && attr < AttributeConsts.UserAttributeEnd)
-                        {
-                            iq = context.Config.ImapTypes[(attr - AttributeConsts.UserAttributeBase) / 16].GetFirstUsedType();
-                        }
-                        else
-                        {
-                            AttributeInfo attrInfo = AttributeInfo.From(context.Config, attr, isOutAttr: false);
-                            AggregateType elemType = attrInfo.Type & AggregateType.ElementTypeMask;
+                        iq = context.Config.ImapTypes[(attr - AttributeConsts.UserAttributeBase) / 16].GetFirstUsedType();
+                    }
+                    else
+                    {
+                        AttributeInfo attrInfo = AttributeInfo.From(context.Config, attr, isOutAttr: false);
+                        AggregateType elemType = attrInfo.Type & AggregateType.ElementTypeMask;
 
-                            if (attrInfo.IsBuiltin && (elemType == AggregateType.S32 || elemType == AggregateType.U32))
-                            {
-                                iq = PixelImap.Constant;
-                            }
+                        if (attrInfo.IsBuiltin && (elemType == AggregateType.S32 || elemType == AggregateType.U32))
+                        {
+                            iq = PixelImap.Constant;
                         }
                     }
-
-                    DeclareInputOrOutput(context, attr, perPatch, isOutAttr: false, iq);
                 }
+
+                DeclareInputOrOutput(context, attr, perPatch, isOutAttr: false, iq);
             }
         }
 
         private static void DeclareOutputAttributes(CodeGenContext context, StructuredProgramInfo info, bool perPatch)
         {
             bool oaIndexing = context.Config.UsedFeatures.HasFlag(FeatureFlags.OaIndexing);
+
+            if (oaIndexing && !perPatch)
+            {
+                var attrType = context.TypeVector(context.TypeFP32(), (LiteralInteger)4);
+                attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), (LiteralInteger)MaxAttributes));
+
+                if (context.Config.Stage == ShaderStage.TessellationControl)
+                {
+                    attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), context.Config.ThreadsPerInputPrimitive));
+                }
+
+                var spvType = context.TypePointer(StorageClass.Output, attrType);
+                var spvVar = context.Variable(spvType, StorageClass.Output);
+
+                context.Decorate(spvVar, Decoration.Location, (LiteralInteger)0);
+
+                context.AddGlobalVariable(spvVar);
+                context.OutputsArray = spvVar;
+            }
+
             var outputs = perPatch ? info.OutputsPerPatch : info.Outputs;
 
             foreach (int attr in outputs)
@@ -477,29 +498,10 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
 
                 if (oaIndexing && isUserAttr && !perPatch)
                 {
-                    if (context.OutputsArray == null)
-                    {
-                        var attrType = context.TypeVector(context.TypeFP32(), (LiteralInteger)4);
-                        attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), (LiteralInteger)MaxAttributes));
-
-                        if (context.Config.Stage == ShaderStage.TessellationControl)
-                        {
-                            attrType = context.TypeArray(attrType, context.Constant(context.TypeU32(), context.Config.ThreadsPerInputPrimitive));
-                        }
-
-                        var spvType = context.TypePointer(StorageClass.Output, attrType);
-                        var spvVar = context.Variable(spvType, StorageClass.Output);
-
-                        context.Decorate(spvVar, Decoration.Location, (LiteralInteger)0);
-
-                        context.AddGlobalVariable(spvVar);
-                        context.OutputsArray = spvVar;
-                    }
-                }
-                else
-                {
-                    DeclareOutputAttribute(context, attr, perPatch);
+                    continue;
                 }
+
+                DeclareOutputAttribute(context, attr, perPatch);
             }
 
             if (context.Config.Stage == ShaderStage.Vertex)

Ryujinx.HLE/HOS/Services/Hid/HidServer/HidUtils.cs

@@ -38,7 +38,9 @@ namespace Ryujinx.HLE.HOS.Services.Hid.HidServer
 
         public static bool IsValidNpadIdType(NpadIdType npadIdType)
         {
-            return npadIdType <= NpadIdType.Player8 || npadIdType == NpadIdType.Handheld || npadIdType == NpadIdType.Unknown;
+            return (npadIdType >= NpadIdType.Player1 && npadIdType <= NpadIdType.Player8) ||
+                npadIdType == NpadIdType.Handheld ||
+                npadIdType == NpadIdType.Unknown;
         }
     }
 }

Ryujinx.HLE/HOS/Services/Hid/IHidServer.cs

@@ -722,7 +722,7 @@ namespace Ryujinx.HLE.HOS.Services.Hid
 
             for (int i = 0; i < supportedPlayerIds.Length; ++i)
             {
-                if (supportedPlayerIds[i] >= 0)
+                if (HidUtils.IsValidNpadIdType(supportedPlayerIds[i]))
                 {
                     context.Device.Hid.Npads.SetSupportedPlayer(HidUtils.GetIndexFromNpadIdType(supportedPlayerIds[i]));
                 }
@@ -1101,7 +1101,7 @@ namespace Ryujinx.HLE.HOS.Services.Hid
 
             if (deviceType < NpadStyleIndex.System || deviceType >= NpadStyleIndex.FullKey)
             {
-                if (npadIdType >= (NpadIdType.Player8 + 1) && npadIdType != NpadIdType.Handheld && npadIdType != NpadIdType.Unknown)
+                if (!HidUtils.IsValidNpadIdType(npadIdType))
                 {
                     return ResultCode.InvalidNpadIdType;
                 }

Ryujinx.Ui.Common/Helper/ObjectiveC.cs

@@ -0,0 +1,97 @@
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
+using System.Text;
+
+namespace Ryujinx.Ui.Common.Helper
+{
+    [SupportedOSPlatform("macos")]
+    public static partial class ObjectiveC
+    {
+        private const string ObjCRuntime = "/usr/lib/libobjc.A.dylib";
+
+        [LibraryImport(ObjCRuntime, StringMarshalling = StringMarshalling.Utf8)]
+        private static unsafe partial IntPtr sel_getUid(string name);
+
+        [LibraryImport(ObjCRuntime, StringMarshalling = StringMarshalling.Utf8)]
+        public static partial IntPtr objc_getClass(string name);
+
+        [LibraryImport(ObjCRuntime)]
+        public static partial void objc_msgSend(IntPtr receiver, Selector selector);
+
+        [LibraryImport(ObjCRuntime)]
+        public static partial void objc_msgSend(IntPtr receiver, Selector selector, byte value);
+
+        [LibraryImport(ObjCRuntime)]
+        public static partial void objc_msgSend(IntPtr receiver, Selector selector, IntPtr value);
+
+        [LibraryImport(ObjCRuntime)]
+        public static partial void objc_msgSend(IntPtr receiver, Selector selector, NSRect point);
+
+        [LibraryImport(ObjCRuntime)]
+        public static partial void objc_msgSend(IntPtr receiver, Selector selector, double value);
+
+        [LibraryImport(ObjCRuntime, EntryPoint = "objc_msgSend")]
+        public static partial IntPtr IntPtr_objc_msgSend(IntPtr receiver, Selector selector);
+
+        [LibraryImport(ObjCRuntime, EntryPoint = "objc_msgSend")]
+        public static partial IntPtr IntPtr_objc_msgSend(IntPtr receiver, Selector selector, IntPtr param);
+
+        [LibraryImport(ObjCRuntime, EntryPoint = "objc_msgSend", StringMarshalling = StringMarshalling.Utf8)]
+        public static partial IntPtr IntPtr_objc_msgSend(IntPtr receiver, Selector selector, string param);
+
+        [LibraryImport(ObjCRuntime, EntryPoint = "objc_msgSend")]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        public static partial bool bool_objc_msgSend(IntPtr receiver, Selector selector, IntPtr param);
+
+        public struct Selector
+        {
+            public readonly IntPtr SelPtr;
+
+            public unsafe Selector(string name)
+            {
+                SelPtr = sel_getUid(name);
+            }
+
+            public static implicit operator Selector(string value) => new(value);
+        }
+
+        public struct NSString
+        {
+            public readonly IntPtr StrPtr;
+
+            public NSString(string aString)
+            {
+                IntPtr nsString = objc_getClass("NSString");
+                StrPtr = IntPtr_objc_msgSend(nsString, "stringWithUTF8String:", aString);
+            }
+
+            public static implicit operator IntPtr(NSString nsString) => nsString.StrPtr;
+        }
+
+        public readonly struct NSPoint
+        {
+            public readonly double X;
+            public readonly double Y;
+
+            public NSPoint(double x, double y)
+            {
+                X = x;
+                Y = y;
+            }
+        }
+
+        public readonly struct NSRect
+        {
+            public readonly NSPoint Pos;
+            public readonly NSPoint Size;
+
+            public NSRect(double x, double y, double width, double height)
+            {
+                Pos = new NSPoint(x, y);
+                Size = new NSPoint(width, height);
+            }
+        }
+    }
+}

Ryujinx.Ui.Common/Helper/OpenHelper.cs

@@ -55,7 +55,17 @@ namespace Ryujinx.Ui.Common.Helper
                 }
                 else if (OperatingSystem.IsMacOS())
                 {
-                    Process.Start("open", $"-R \"{path}\"");
+                    ObjectiveC.NSString nsStringPath = new(path);
+                    IntPtr nsUrl = ObjectiveC.objc_getClass("NSURL");
+                    var urlPtr = ObjectiveC.IntPtr_objc_msgSend(nsUrl, "fileURLWithPath:", nsStringPath);
+
+                    IntPtr nsArray = ObjectiveC.objc_getClass("NSArray");
+                    IntPtr urlArray = ObjectiveC.IntPtr_objc_msgSend(nsArray, "arrayWithObject:", urlPtr);
+
+                    IntPtr nsWorkspace = ObjectiveC.objc_getClass("NSWorkspace");
+                    IntPtr sharedWorkspace = ObjectiveC.IntPtr_objc_msgSend(nsWorkspace, "sharedWorkspace");
+
+                    ObjectiveC.objc_msgSend(sharedWorkspace, "activateFileViewerSelectingURLs:", urlArray);
                 }
                 else if (OperatingSystem.IsLinux())
                 {
@@ -84,7 +94,14 @@ namespace Ryujinx.Ui.Common.Helper
             }
             else if (OperatingSystem.IsMacOS())
             {
-                Process.Start("open", url);
+                ObjectiveC.NSString nsStringPath = new(url);
+                IntPtr nsUrl = ObjectiveC.objc_getClass("NSURL");
+                var urlPtr = ObjectiveC.IntPtr_objc_msgSend(nsUrl, "URLWithString:", nsStringPath);
+
+                IntPtr nsWorkspace = ObjectiveC.objc_getClass("NSWorkspace");
+                IntPtr sharedWorkspace = ObjectiveC.IntPtr_objc_msgSend(nsWorkspace, "sharedWorkspace");
+
+                ObjectiveC.bool_objc_msgSend(sharedWorkspace, "openURL:", urlPtr);
             }
             else
             {