implemented DAF2 archives.

ArcFormats/ArcFormats.csproj

@@ -82,6 +82,7 @@
     <Compile Include="CatSystem\ImageHG2.cs" />
     <Compile Include="Cmvs\CmvsMD5.cs" />
     <Compile Include="Cmvs\ImagePB3.cs" />
+    <Compile Include="DenSDK\ArcDAF.cs" />
     <Compile Include="elf\ArcVSD.cs" />
     <Compile Include="Escude\ArcBIN.cs" />
     <Compile Include="Eushully\ArcGPC.cs" />

ArcFormats/DenSDK/ArcDAF.cs

@@ -0,0 +1,104 @@
+//! \file       ArcDAF.cs
+//! \date       Thu Jan 21 22:33:29 2016
+//! \brief      DenSDK engine 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;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using GameRes.Compression;
+using GameRes.Utility;
+
+namespace GameRes.Formats.DenSdk
+{
+    [Export(typeof(ArchiveFormat))]
+    public class DatOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "DAT/DenSDK"; } }
+        public override string Description { get { return "DenSDK resource archive"; } }
+        public override uint     Signature { get { return 0x32464144; } } // 'DAF2'
+        public override bool  IsHierarchic { get { return true; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public DatOpener ()
+        {
+            Extensions = new string[] { "dat" };
+        }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            uint key = (uint)(file.View.ReadByte (0x20) << 24
+                            | file.View.ReadByte (0x25) << 16
+                            | file.View.ReadByte (0x2A) << 8
+                            | file.View.ReadByte (0x2F));
+            int count = file.View.ReadInt32 (8) ^ (int)key;
+            if (!IsSaneCount (count))
+                return null;
+            uint packed_size = file.View.ReadUInt32 (0x10) ^ key;
+            uint unpacked_size = file.View.ReadUInt32 (0x14) ^ key;
+            uint base_offset = file.View.ReadUInt32 (0x1C) ^ key;
+            byte[] index = new byte[unpacked_size];
+            bool is_packed = file.View.ReadInt32 (0x18) == 1;
+            if (is_packed)
+            {
+                using (var input = file.CreateStream (0x30, packed_size))
+                using (var zindex = new ZLibStream (input, CompressionMode.Decompress))
+                    zindex.Read (index, 0, index.Length);
+                base_offset = 0x30 + packed_size;
+            }
+            else
+            {
+                file.View.Read (0x30, index, 0, unpacked_size);
+            }
+            int index_offset = 0;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                int entry_size = LittleEndian.ToInt32 (index, index_offset) ^ (int)key;
+                if (entry_size < 0x30 || entry_size > index.Length-index_offset)
+                    return null;
+                var name = Binary.GetCString (index, index_offset+0x34, entry_size-0x34);
+                var entry = FormatCatalog.Instance.Create<PackedEntry> (name);
+                entry.Offset        = base_offset + (LittleEndian.ToUInt32 (index, index_offset+4) ^ (uint)key);
+                entry.Size          = LittleEndian.ToUInt32 (index, index_offset+8) ^ (uint)key;
+                entry.UnpackedSize  = LittleEndian.ToUInt32 (index, index_offset+0xC) ^ (uint)key;
+                entry.IsPacked      = LittleEndian.ToInt32 (index, index_offset+0x30) != 0;
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+                index_offset += entry_size;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            var input = arc.File.CreateStream (entry.Offset, entry.Size);
+            var pent = entry as PackedEntry;
+            if (null == pent || !pent.IsPacked)
+                return input;
+            return new ZLibStream (input, CompressionMode.Decompress);
+        }
+    }
+}

supported.html

@@ -330,6 +330,7 @@ Warusa<br/>
 <tr><td>*.pak+*.idx</td><td>-</td><td>No</td><td rowspan="2">EAGLS</td><td rowspan="2">
 Futago Hinyuu x 3<br/>
 Oppai Baka<br/>
+Oshiete! Yuiko Sensei<br/>
 Mainichi Shabutte Ii Desu ka?<br/>
 Senpai - Oppai - Kako ni Modori Pai<br/>
 </td></tr>
@@ -627,6 +628,9 @@ Dancing Crazies<br/>
 <tr class="odd"><td>*.gd+*.dll</td><td>-</td><td>No</td><td>Xuse</td><td>
 Eien no Aselia -The Spirit of Eternity Sword-
 </td></tr>
+<tr><td>*.dat</td><td><tt>DAF2</tt></td><td>No</td><td>DenSDK</td><td>
+Ayakashi H<br/>
+</td></tr>
 </table>
 <p><a name="note-1" class="footnote">1</a> Non-encrypted only</p>
 </body>