implemented Will co. engine resources.

2026-07-08 01:30:18 +08:00 · 2014-10-31 18:50:43 +04:00
parent 6736819db1
commit 56d2a45d94
3 changed files with 331 additions and 0 deletions
--- a/ArcFormats/ArcWILL.cs
+++ b/ArcFormats/ArcWILL.cs
@@ -0,0 +1,96 @@
+//! \file       ArcWILL.cs
+//! \date       Fri Oct 31 13:37:11 2014
+//! \brief      ARC archive format implementation.
+//
+// Copyright (C) 2014 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;
+
+namespace GameRes.Formats.Will
+{
+    internal class ExtRecord
+    {
+        public string   Extension;
+        public int      FileCount;
+        public uint     DirOffset;
+    }
+
+    [Export(typeof(ArchiveFormat))]
+    public class ArcOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "ARC"; } }
+        public override string Description { get { return "Will Co. game engine resource archive"; } }
+        public override uint     Signature { get { return 0; } }
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            int ext_count = file.View.ReadInt32 (0);
+            if (ext_count <= 0 || ext_count > 0xff)
+                return null;
+
+            uint dir_offset = 4;
+            var ext_list = new List<ExtRecord> (ext_count);
+            int file_count = 0;
+            for (int i = 0; i < ext_count; ++i)
+            {
+                string ext = file.View.ReadString (dir_offset, 4).ToLowerInvariant();
+                int count = file.View.ReadInt32 (dir_offset+4);
+                uint offset = file.View.ReadUInt32 (dir_offset+8);
+                if (count <= 0 || count > 0xffff || offset <= dir_offset)
+                    return null;
+                ext_list.Add (new ExtRecord { Extension = ext, FileCount = count, DirOffset = offset });
+                file_count += count;
+                dir_offset += 12;
+            }
+            var dir = ReadFileList (file, ext_list, 9);
+            if (null == dir)
+                dir = ReadFileList (file, ext_list, 13);
+            if (null == dir)
+                return null;
+            return new ArcFile (file, this, dir);
+        }
+
+        List<Entry> ReadFileList (ArcView file, IEnumerable<ExtRecord> ext_list, uint name_size)
+        {
+            var dir = new List<Entry>();
+            foreach (var ext in ext_list)
+            {
+                uint dir_offset = ext.DirOffset;
+                for (int i = 0; i < ext.FileCount; ++i)
+                {
+                    string name = file.View.ReadString (dir_offset, name_size).ToLowerInvariant()+'.'+ext.Extension;
+                    var entry = FormatCatalog.Instance.CreateEntry (name);
+                    entry.Size = file.View.ReadUInt32 (dir_offset+name_size);
+                    entry.Offset = file.View.ReadUInt32 (dir_offset+name_size+4);
+                    if (!entry.CheckPlacement (file.MaxOffset))
+                        return null;
+                    dir.Add (entry);
+                    dir_offset += name_size+8;
+                }
+            }
+            return dir;
+        }
+    }
+}