added Net20 package.

Net20/Gx4Lib/PackageFile.cs

@@ -0,0 +1,77 @@
+//! \file       PackageFile.cs
+//! \date       2018 Aug 30
+//! \brief      Unity GX4Lib deserializer.
+//
+// Copyright (C) 2018 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Runtime.Serialization.Formatters.Binary;
+
+namespace GameRes.Gx4Lib
+{
+    public class PackageFile
+    {
+        public PFHeader[] Deserialize (Stream input)
+        {
+            var bin = new BinaryFormatter { Binder = new Gx4TypeBinder() };
+            var index = bin.Deserialize (input) as PFHeaders;
+            if (null == index)
+                return null;
+            return index.headers;
+        }
+    }
+
+    [Serializable]
+    public class PFHeader
+    {
+        public string   FileName;
+        public long     readStartBytePos;
+        public long     ByteLength;
+    }
+
+    [Serializable]
+    public class PFHeaders
+    {
+        public PFHeader[] headers;
+    }
+
+    internal class Gx4TypeBinder : SerializationBinder
+    {
+        public override Type BindToType (string assemblyName, string typeName)
+        {
+            if ("GX4Lib" == assemblyName)
+            {
+                if (typeName.StartsWith ("GX4.PackageFile`1+PFHeaders[["))
+                {
+                    return typeof(PFHeaders);
+                }
+                else if (typeName.StartsWith ("GX4.PackageFile`1+PFHeader[["))
+                {
+                    return typeof(PFHeader);
+                }
+            }
+            return null;
+        }
+    }
+}