implemented ARCC archives.

ArcFormats/Hexenhaus/ArcARCC.cs

@@ -0,0 +1,115 @@
+//! \file       ArcARCC.cs
+//! \date       Sat Mar 05 10:24:00 2016
+//! \brief      Hexenhaus resource archive.
+//
+// Copyright (C) 2016 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;
+using System.Linq;
+
+namespace GameRes.Formats.Hexenhaus
+{
+    [Export(typeof(ArchiveFormat))]
+    public class ArcOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "ARCC"; } }
+        public override string Description { get { return "Hexenhaus resource archive"; } }
+        public override uint     Signature { get { return 0x43435241; } } // 'ARCC'
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public ArcOpener ()
+        {
+            Extensions = new string[] { "arc" };
+        }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            int count = file.View.ReadInt32 (0x14);
+            if (!IsSaneCount (count))
+                return null;
+            long index_offset = 0x2A;
+            if (!file.View.AsciiEqual (index_offset, "NAME"))
+                return null;
+            var addr_offset = file.View.ReadInt64 (index_offset+4);
+            index_offset += 0xE;
+            if (!file.View.AsciiEqual (index_offset, "NIDX"))
+                return null;
+            index_offset += 4;
+            var nidx_offsets = new uint[count]; // name offsets
+            for (int i = 0; i < count; ++i)
+            {
+                nidx_offsets[i] = file.View.ReadUInt32 (index_offset+2);
+                index_offset += 8;
+            }
+            if (!file.View.AsciiEqual (index_offset, "EIDX"))
+                return null;
+            index_offset += 4 + 8 * count;
+            if (!file.View.AsciiEqual (index_offset, "CINF"))
+                return null;
+            index_offset += 4;
+            var name_buffer = new byte[0x40];
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                index_offset += 6;
+                ushort name_length = file.View.ReadUInt16 (index_offset);
+                if (name_length > name_buffer.Length)
+                    name_buffer = new byte[name_length];
+                file.View.Read (index_offset+4, name_buffer, 0, name_length);
+                index_offset += 6 + name_length;
+                var name = DecryptName (name_buffer, name_length);
+                var entry = FormatCatalog.Instance.Create<Entry> (name);
+                dir.Add (entry);
+            }
+            index_offset = addr_offset;
+            if (!file.View.AsciiEqual (index_offset, "ADDR"))
+                return null;
+            index_offset += 4;
+            for (int i = 0; i < count; ++i)
+            {
+                dir[i].Offset = file.View.ReadInt64 (index_offset+2);
+                index_offset += 12;
+            }
+            foreach (var entry in dir)
+            {
+                if (!file.View.AsciiEqual (entry.Offset, "FILE"))
+                    continue;
+                entry.Size = file.View.ReadUInt32 (entry.Offset+0x18);
+                entry.Offset += 0x22;
+            }
+            dir = dir.Where (entry => entry.Size != 0).ToList();
+            if (0 == dir.Count)
+                return null;
+            return new ArcFile (file, this, dir);
+        }
+
+        static string DecryptName (byte[] name, int length)
+        {
+            for (int i = 0; i < length; ++i)
+                name[i] ^= 0x69;
+            return Encodings.cp932.GetString (name, 0, length);
+        }
+    }
+}