From 97a70d3fd430984497f663ed221113b850024056 Mon Sep 17 00:00:00 2001
From: morkt <muvluv.ru@gmail.com>
Date: Thu, 28 Jul 2016 14:20:12 +0400
Subject: [PATCH] implemented ARCX archives.

---
 ArcFormats/ArcARCX.cs        | 81 ++++++++++++++++++++++++++++++++++++
 ArcFormats/ArcFormats.csproj |  1 +
 supported.html               |  5 +++
 3 files changed, 87 insertions(+)
 create mode 100644 ArcFormats/ArcARCX.cs

diff --git a/ArcFormats/ArcARCX.cs b/ArcFormats/ArcARCX.cs
new file mode 100644
index 00000000..c2793663
--- /dev/null
+++ b/ArcFormats/ArcARCX.cs
@@ -0,0 +1,81 @@
+//! \file       ArcARCX.cs
+//! \date       Thu Jul 28 13:26:51 2016
+//! \brief      ARCX 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 GameRes.Compression;
+
+namespace GameRes.Formats.ArcX
+{
+    [Export(typeof(ArchiveFormat))]
+    public class ArcOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "ARCX"; } }
+        public override string Description { get { return "ARCX resource archive"; } }
+        public override uint     Signature { get { return 0x58435241; } } // 'ARCX'
+        public override bool  IsHierarchic { get { return true; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public ArcOpener ()
+        {
+            Extensions = new string[] { "arc" };
+        }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            int count = file.View.ReadInt32 (4);
+            if (!IsSaneCount (count))
+                return null;
+
+            uint index_offset = 0x10;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                var name = file.View.ReadString (index_offset, 100);
+                index_offset += 100;
+                var entry = FormatCatalog.Instance.Create<PackedEntry> (name);
+                entry.Offset = file.View.ReadUInt32 (index_offset);
+                entry.Size   = file.View.ReadUInt32 (index_offset+4);
+                entry.UnpackedSize = file.View.ReadUInt32 (index_offset+8);
+                entry.IsPacked = file.View.ReadByte (index_offset+0x13) != 0;
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+                index_offset += 0x1C;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            var pent = entry as PackedEntry;
+            var input = arc.File.CreateStream (entry.Offset, entry.Size);
+            if (null == pent || !pent.IsPacked)
+                return input;
+            return new LzssStream (input);
+        }
+    }
+}
diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index 70fcaaee..fa72ed39 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -81,6 +81,7 @@
     </Compile>
     <Compile Include="Ankh\ArcGRP.cs" />
     <Compile Include="Aoi\ImageAGF.cs" />
+    <Compile Include="ArcARCX.cs" />
     <Compile Include="ArcCG.cs" />
     <Compile Include="Astronauts\ArcGXP.cs" />
     <Compile Include="Banana\ImageGEC.cs" />
diff --git a/supported.html b/supported.html
index 12d35b97..d72ade10 100644
--- a/supported.html
+++ b/supported.html
@@ -691,6 +691,7 @@ Wizard Links<br/>
 Atori no Sora to Shinchuu no Tsuki<br/>
 Favorite Sweet!<br/>
 Nanapuri<br/>
+Soushinjutsu 3<br/>
 </td></tr>
 <tr class="odd"><td>*.spd</td><td><tt>SPDC</tt></td><td>No</td></tr>
 <tr><td>*.dat</td><td><tt>CHE00</tt><br/><tt>MYK00</tt></td><td>No</td><td>Cherry Soft</td><td>
@@ -980,6 +981,10 @@ Osananajimi wa Bed Yakuza!<br/>
 <tr><td>*.dat</td><td><tt>DDP2</tt><br/><tt>DDP3</tt></td><td>No</td><td>DDSystem</td><td>
 Nukiani!! Sweet Home<br/>
 </td></tr>
+<tr class="odd"><td>*.arc</td><td><tt>ARCX</tt></td><td>No</td><td>Studio Jaren</td><td>
+Denpa no Dorei<br/>
+Soushinjutsu Plus<br/>
+</td></tr>
 </table>
 <p><a name="note-1" class="footnote">1</a> Non-encrypted only</p>
 </body>