From ed9d7ccbf1e62e2fa2c5791e1ab7e0b7eea530ea Mon Sep 17 00:00:00 2001
From: morkt <morkt@users.noreply.github.com>
Date: Wed, 19 Dec 2018 03:15:39 +0400
Subject: [PATCH] (BIN): Abel resource archive.

---
 ArcFormats/Abel/ArcBIN.cs | 72 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 ArcFormats/Abel/ArcBIN.cs

diff --git a/ArcFormats/Abel/ArcBIN.cs b/ArcFormats/Abel/ArcBIN.cs
new file mode 100644
index 00000000..6dffb28c
--- /dev/null
+++ b/ArcFormats/Abel/ArcBIN.cs
@@ -0,0 +1,72 @@
+//! \file       ArcBIN.cs
+//! \date       2018 Dec 13
+//! \brief      Abel resource archive.
+//
+// Copyright (C) 2018 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 GameRes.Utility;
+
+namespace GameRes.Formats.Abel
+{
+    [Export(typeof(ArchiveFormat))]
+    public class FilepakOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "BIN/ABEL"; } }
+        public override string Description { get { return "Abel resource archive"; } }
+        public override uint     Signature { get { return 0; } }
+        public override bool  IsHierarchic { get { return true; } }
+        public override bool      CanWrite { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (file.View.ReadUInt32 (0) != file.MaxOffset)
+                return null;
+            int count = file.View.ReadInt32 (4);
+            if (!IsSaneCount (count))
+                return null;
+            uint index_size = file.View.ReadUInt32 (8);
+            int index_pos = file.View.ReadInt32 (0x14);
+            if (index_size >= file.MaxOffset || index_pos >= file.MaxOffset)
+                return null;
+            var index = file.View.ReadBytes (0, index_size);
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                int name_pos = index.ToInt32 (index_pos);
+                var name = Binary.GetCString (index, name_pos, index.Length - name_pos);
+                name = name.TrimStart ('\\', '/');
+                if (string.IsNullOrEmpty (name))
+                    return null;
+                var entry = Create<Entry> (name);
+                entry.Offset = index.ToUInt32 (index_pos+4);
+                entry.Size   = index.ToUInt32 (index_pos+8);
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+                index_pos += 12;
+            }
+            return new ArcFile (file, this, dir);
+        }
+    }
+}