1 files changed, 41 insertions, 0 deletions
diff --git a/src/Ryujinx.Horizon/Sdk/Ngc/Detail/Utf8Util.cs b/src/Ryujinx.Horizon/Sdk/Ngc/Detail/Utf8Util.cs
new file mode 100644
index 00000000..1bb543ba
--- /dev/null
+++ b/src/Ryujinx.Horizon/Sdk/Ngc/Detail/Utf8Util.cs
@@ -0,0 +1,41 @@
+using System;
+using System.Text;
+
+namespace Ryujinx.Horizon.Sdk.Ngc.Detail
+{
+    static class Utf8Util
+    {
+        public static Utf8ParseResult NormalizeFormKC(Span<byte> output, ReadOnlySpan<byte> input)
+        {
+            int length = input.IndexOf((byte)0);
+            if (length >= 0)
+            {
+                input = input[..length];
+            }
+
+            UTF8Encoding encoding = new(encoderShouldEmitUTF8Identifier: false, throwOnInvalidBytes: true);
+
+            string text;
+
+            try
+            {
+                text = encoding.GetString(input);
+            }
+            catch (ArgumentException)
+            {
+                return Utf8ParseResult.InvalidCharacter;
+            }
+
+            string normalizedText = text.Normalize(NormalizationForm.FormKC);
+
+            int outputIndex = Encoding.UTF8.GetBytes(normalizedText, output);
+
+            if (outputIndex < output.Length)
+            {
+                output[outputIndex] = 0;
+            }
+
+            return Utf8ParseResult.Success;
+        }
+    }
+}