(Legacy): implemented MCD archives.

Legacy/Legacy.csproj

@@ -67,6 +67,7 @@
     <Compile Include="ShapeShifter\ArcBND.cs" />
     <Compile Include="System21\ArcPAK.cs" />
     <Compile Include="System21\ImageBET.cs" />
+    <Compile Include="Tsd\ArcMCD.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\ArcFormats\ArcFormats.csproj">

Legacy/Tsd/ArcMCD.cs

@@ -0,0 +1,102 @@
+//! \file       ArcMCD.cs
+//! \date       2017 Dec 10
+//! \brief      TSD resource archive.
+//
+// Copyright (C) 2017 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.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+
+namespace GameRes.Formats.Tsd
+{
+    [Export(typeof(ArchiveFormat))]
+    public class McdOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "MCD/TSD"; } }
+        public override string Description { get { return "TSD engine resource archive"; } }
+        public override uint     Signature { get { return 0x20484C4F; } } // 'OLH '
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool      CanWrite { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (!file.View.AsciiEqual (4, "for Win"))
+                return null;
+            uint index_offset = file.View.ReadUInt32 (file.MaxOffset-8);
+            int count = file.View.ReadInt32 (file.MaxOffset-4);
+            if (!IsSaneCount (count) || index_offset >= file.MaxOffset)
+                return null;
+            uint index_size = (uint)count * 8u;
+            if (index_size > file.View.Reserve (index_offset, index_size))
+                return null;
+            var base_name = Path.GetFileNameWithoutExtension (file.Name);
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                var entry = new Entry {
+                    Name = string.Format ("{0}#{1:D4}", base_name, i),
+                    Offset = file.View.ReadUInt32 (index_offset),
+                    Size   = file.View.ReadUInt32 (index_offset+4),
+                };
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+                index_offset += 8;
+            }
+            foreach (var entry in dir)
+            {
+                uint signature = file.View.ReadUInt32 (entry.Offset);
+                if (0 == (signature & 0xFFFF) || 0x4D42 == (signature & 0xFFFF))
+                    entry.Type = "image";
+                else if (AudioFormat.Wav.Signature == signature)
+                    entry.Type = "audio";
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
+        {
+            var header = arc.File.View.ReadBytes (entry.Offset, 2);
+            if (header[0] != 0 || header[1] != 0)
+                return base.OpenImage (arc, entry);
+            header[0] = (byte)'B';
+            header[1] = (byte)'M';
+            Stream input = arc.File.CreateStream (entry.Offset+2, entry.Size-2);
+            try
+            {
+                input = new PrefixStream (header, input);
+                var bmp = new BinaryStream (input, entry.Name);
+                var info = ImageFormat.Bmp.ReadMetaData (bmp);
+                if (null == info)
+                    throw new InvalidFormatException();
+                bmp.Position = 0;
+                return new ImageFormatDecoder (bmp, ImageFormat.Bmp, info);
+            }
+            catch
+            {
+                input.Dispose();
+                throw;
+            }
+        }
+    }
+}