1 files changed, 41 insertions, 0 deletions
diff --git a/src/Ryujinx.HLE/HOS/Services/SurfaceFlinger/IBinder.cs b/src/Ryujinx.HLE/HOS/Services/SurfaceFlinger/IBinder.cs
new file mode 100644
index 00000000..9003201b
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/SurfaceFlinger/IBinder.cs
@@ -0,0 +1,41 @@
+using Ryujinx.Common.Logging;
+using Ryujinx.HLE.HOS.Kernel.Threading;
+using System;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.HLE.HOS.Services.SurfaceFlinger
+{
+    interface IBinder
+    {
+        ResultCode AdjustRefcount(int addVal, int type);
+
+        void GetNativeHandle(uint typeId, out KReadableEvent readableEvent);
+
+        ResultCode OnTransact(uint code, uint flags, ReadOnlySpan<byte> inputParcel, Span<byte> outputParcel)
+        {
+            Parcel inputParcelReader = new Parcel(inputParcel.ToArray());
+
+            // TODO: support objects?
+            Parcel outputParcelWriter = new Parcel((uint)(outputParcel.Length - Unsafe.SizeOf<ParcelHeader>()), 0);
+
+            string inputInterfaceToken = inputParcelReader.ReadInterfaceToken();
+
+            if (!InterfaceToken.Equals(inputInterfaceToken))
+            {
+                Logger.Error?.Print(LogClass.SurfaceFlinger, $"Invalid interface token {inputInterfaceToken} (expected: {InterfaceToken}");
+
+                return ResultCode.Success;
+            }
+
+            OnTransact(code, flags, inputParcelReader, outputParcelWriter);
+
+            outputParcelWriter.Finish().CopyTo(outputParcel);
+
+            return ResultCode.Success;
+        }
+
+        void OnTransact(uint code, uint flags, Parcel inputParcel, Parcel outputParcel);
+
+        string InterfaceToken { get; }
+    }
+}