aloha

Ryujinx/OsHle/Objects/AmIApplicationFunctions.cs

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+using System.IO;
+
+using static Ryujinx.OsHle.Objects.ObjHelper;
+
+namespace Ryujinx.OsHle.Objects
+{
+    class AmIApplicationFunctions
+    {
+        private const uint LaunchParamsMagic = 0xc79497ca;
+
+        public static long PopLaunchParameter(ServiceCtx Context)
+        {
+            //Only the first 0x18 bytes of the Data seems to be actually used.
+            MakeObject(Context, new AmIStorage(MakeLaunchParams()));
+
+            return 0;
+        }
+
+        public static long EnsureSaveData(ServiceCtx Context)
+        {
+            long UIdLow  = Context.RequestData.ReadInt64();
+            long UIdHigh = Context.RequestData.ReadInt64();
+
+            Context.ResponseData.Write(0L);
+
+            return 0;
+        }
+
+        public static long GetDesiredLanguage(ServiceCtx Context)
+        {
+            //This is an enumerator where each number is a differnet language.
+            //0 is Japanese and 1 is English, need to figure out the other codes.
+            Context.ResponseData.Write(1L);
+
+            return 0;
+        }
+
+        private static byte[] MakeLaunchParams()
+        {
+            //Size needs to be at least 0x88 bytes otherwise application errors.
+            using (MemoryStream MS = new MemoryStream())
+            {
+                BinaryWriter Writer = new BinaryWriter(MS);
+
+                MS.SetLength(0x88);
+
+                Writer.Write(LaunchParamsMagic);
+                Writer.Write(1);  //IsAccountSelected? Only lower 8 bits actually used.
+                Writer.Write(1L); //User Id Low (note: User Id needs to be != 0)
+                Writer.Write(0L); //User Id High
+
+                return MS.ToArray();
+            }
+        }
+    }
+}