implemented AOS resource archives.

ArcFormats/ArcAOS.cs

@@ -0,0 +1,109 @@
+//! \file       ArcAOS.cs
+//! \date       Tue Aug 04 06:00:39 2015
+//! \brief      LiLiM resource archive implementation.
+//
+// Copyright (C) 2015 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 System.Linq;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Lilim
+{
+    [Export(typeof(ArchiveFormat))]
+    public class AosOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "AOS"; } }
+        public override string Description { get { return "LiLiM/Le.Chocolat engine resource archive"; } }
+        public override uint     Signature { get { return 0; } }
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool     CanCreate { get { return false; } }
+
+        static readonly byte[] IndexLink = Enumerable.Repeat<byte> (0xff, 0x10).ToArray();
+        static readonly byte[] IndexEnd  = Enumerable.Repeat<byte> (0, 0x10).ToArray();
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (0 == file.View.ReadByte (0))
+                return null;
+            uint first_offset = file.View.ReadUInt32 (0x10);
+            if (first_offset >= file.MaxOffset || 0 != (first_offset & 0x1F))
+                return null;
+            var name_buf = new byte[0x10];
+            if (0x10 != file.View.Read (first_offset, name_buf, 0, 0x10))
+                return null;
+            if (!name_buf.SequenceEqual (IndexLink) && !name_buf.SequenceEqual (IndexEnd))
+                return null;
+
+            uint current_offset = 0;
+            var dir = new List<Entry> (0x3E);
+            for (;;)
+            {
+                if (0x10 != file.View.Read (current_offset, name_buf, 0, 0x10))
+                    break;
+                if (name_buf.SequenceEqual (IndexLink))
+                {
+                    uint next_offset = file.View.ReadUInt32 (current_offset+0x10);
+                    current_offset += 0x20 + next_offset;
+                    if (current_offset >= file.MaxOffset)
+                        break;
+                }
+                else
+                {
+                    int name_length = Array.IndexOf<byte> (name_buf, 0);
+                    if (0 == name_length)
+                        break;
+                    if (-1 == name_length)
+                        name_length = name_buf.Length;
+                    var name = Encodings.cp932.GetString (name_buf, 0, name_length);
+                    var entry = FormatCatalog.Instance.CreateEntry (name);
+                    entry.Offset = file.View.ReadUInt32 (current_offset+0x10);
+                    entry.Size   = file.View.ReadUInt32 (current_offset+0x14);
+                    current_offset += 0x20;
+                    entry.Offset += current_offset;
+                    if (!entry.CheckPlacement (file.MaxOffset))
+                        return null;
+                    dir.Add (entry);
+                }
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            if (!entry.Name.EndsWith (".scr", StringComparison.InvariantCultureIgnoreCase))
+                return arc.File.CreateStream (entry.Offset, entry.Size);
+
+            uint unpacked_size = arc.File.View.ReadUInt32 (entry.Offset);
+            var packed = new byte[entry.Size-4];
+            arc.File.View.Read (entry.Offset+4, packed, 0, (uint)packed.Length);
+            var unpacked = new byte[unpacked_size];
+
+            var decoder = new HuffmanDecoder (packed, unpacked);
+            decoder.Unpack();
+            return new MemoryStream (unpacked);
+        }
+    }
+}

ArcFormats/ArcFormats.csproj

@@ -69,6 +69,7 @@
     <Compile Include="ArcAil.cs" />
     <Compile Include="ArcALD.cs" />
     <Compile Include="ArcAMI.cs" />
+    <Compile Include="ArcAOS.cs" />
     <Compile Include="ArcAST.cs" />
     <Compile Include="ArcAVC.cs" />
     <Compile Include="ArcAZSys.cs" />
@@ -126,8 +127,10 @@
     <Compile Include="ArcSAF.cs" />
     <Compile Include="ArcVPK.cs" />
     <Compile Include="AudioVAW.cs" />
+    <Compile Include="EriReader.cs" />
     <Compile Include="ImageDWQ.cs" />
     <Compile Include="ImageHIZ.cs" />
+    <Compile Include="MioDecoder.cs" />
     <Compile Include="ZLibStream.cs" />
     <None Include="ArcSeraph.cs" />
     <Compile Include="ArcSPack.cs" />

supported.html

@@ -204,6 +204,7 @@ Rikorisu ~Lycoris Radiata~<br/>
 <tr><td>*.pmp<br/>*.pmw</td><td>-</td><td>Yes</td><td>ScenePlayer</td><td>Nyuujoku Hitozuma Jogakuen</td></tr>
 <tr class="odd"><td>*.dat</td><td><tt>GAMEDAT PACK</tt><br/><tt>GAMEDAT PAC2</tt></td><td>No</td><td rowspan="2"> bootUP!<br/>Pajamas Soft</td><td rowspan="2">
 Aneimo 2 ~Second Stage~<br/>
+Momichupa Teacher!<br/>
 Natsu no Owari no Nirvana<br/>
 Prism Heart<br/>
 </tr>
@@ -297,6 +298,9 @@ Yami no Koe Zero<br/>
 </td></tr>
 <tr><td>*.dwq</td><td><tt>BMP</tt><br/><tt>JPEG</tt><br/><tt>PNG</tt><br/><tt>JPEG+MASK</tt><br/><tt>PACKBMP+MASK</tt><br/></td><td>No</td></tr>
 <tr><td>*.vaw<br/>*.wgq</td><td><tt>IF PACKTYPE==</tt><br/><tt>OGG</tt></td><td>No</td></tr>
+<tr class="odd"><td>*.aos</td><td>-</td><td>No</td><td>LiLiM</td><td>
+Answer Dead<br/>
+</td></tr>
 </table>
 <p><a name="note-1" class="footnote">1</a> Non-encrypted only</p>
 </body>