Implement CreateLibraryAppletEx in ILibraryAppletCreator

- Fixes Ultracam 20+ (beta) support

src/Ryujinx.HLE/HOS/Kernel/Common/KSystemControl.cs

@@ -26,12 +26,12 @@ namespace Ryujinx.HLE.HOS.Kernel.Common
             {
                 MemoryArrange.MemoryArrange4GiB or
                 MemoryArrange.MemoryArrange4GiBSystemDev or
-                MemoryArrange.MemoryArrange6GiBAppletDev => 3173 * MiB,
+                MemoryArrange.MemoryArrange6GiBAppletDev => 3236 * MiB,
                 MemoryArrange.MemoryArrange4GiBAppletDev => 2048 * MiB,
-                MemoryArrange.MemoryArrange6GiB => 4804 * MiB,
-                MemoryArrange.MemoryArrange8GiB => 6852 * MiB,
-                MemoryArrange.MemoryArrange10GiB => 8900 * MiB,
-                MemoryArrange.MemoryArrange12GiB => 10948 * MiB,
+                MemoryArrange.MemoryArrange6GiB => 4867 * MiB,
+                MemoryArrange.MemoryArrange8GiB => 6915 * MiB,
+                MemoryArrange.MemoryArrange10GiB => 8963 * MiB,
+                MemoryArrange.MemoryArrange12GiB => 11011 * MiB,
                 _ => throw new ArgumentException($"Invalid memory arrange \"{arrange}\"."),
             };
         }

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

@@ -21,6 +21,21 @@ namespace Ryujinx.HLE.HOS.Services.Am.AppletAE.AllSystemAppletProxiesService.Sys
             return ResultCode.Success;
         }
 
+        [CommandCmif(3)] // 20.0.0+
+        // CreateLibraryAppletEx(u32, u32, u64) -> object<nn::am::service::ILibraryAppletAccessor>
+        public ResultCode CreateLibraryAppletEx(ServiceCtx context)
+        {
+            AppletId appletId = (AppletId)context.RequestData.ReadInt32();
+
+            _ = context.RequestData.ReadInt32(); // libraryAppletMode
+
+            _ = context.RequestData.ReadUInt64(); // threadId
+
+            MakeObject(context, new ILibraryAppletAccessor(appletId, context.Device.System));
+
+            return ResultCode.Success;
+        }
+
         [CommandCmif(10)]
         // CreateStorage(u64) -> object<nn::am::service::IStorage>
         public ResultCode CreateStorage(ServiceCtx context)

src/Ryujinx.HLE/Loaders/Processes/ProcessLoader.cs

@@ -24,7 +24,16 @@ namespace Ryujinx.HLE.Loaders.Processes
 
         private ulong _latestPid;
 
-        public ProcessResult ActiveApplication => _processesByPid[_latestPid];
+        public ProcessResult ActiveApplication
+        {
+            get
+            {
+                if (_latestPid != 0 && _processesByPid.TryGetValue(_latestPid, out ProcessResult process))
+                    return process;
+
+                return null;
+            }
+        }
 
         public ProcessLoader(Switch device)
         {