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https://github.com/crskycode/GARbro.git
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133 lines
5.1 KiB
C#
133 lines
5.1 KiB
C#
//! \file ArcRES.cs
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//! \date 2017 Nov 29
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//! \brief Factor resource archive.
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//
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// Copyright (C) 2017 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.IO;
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using System.Text.RegularExpressions;
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namespace GameRes.Formats.Factor
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{
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#if DEBUG
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[Export(typeof(ArchiveFormat))]
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#endif
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public class PackOpener : ArchiveFormat
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{
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public override string Tag { get { return "PACK/FACTOR"; } }
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public override string Description { get { return "Factor resource archive"; } }
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public override uint Signature { get { return 0; } }
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public override bool IsHierarchic { get { return false; } }
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public override bool CanWrite { get { return false; } }
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public PackOpener ()
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{
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Extensions = new string[] { "" };
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}
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static readonly Regex PackNameRe = new Regex (@"^pack(\d)$");
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public override ArcFile TryOpen (ArcView file)
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{
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var base_name = Path.GetFileNameWithoutExtension (file.Name);
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var match = PackNameRe.Match (base_name);
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if (!match.Success)
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return null;
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var pack_ext = Path.GetExtension (file.Name);
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List<string> names = new List<string>();
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/*
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if (pack_ext.Equals (".bmp", StringComparison.InvariantCultureIgnoreCase))
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{
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var res_name = Path.ChangeExtension (file.Name, "res");
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var res_num = match.Groups[1].Value;
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names.AddRange (ReadNames (res_name, res_num));
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}
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*/
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var dir = new List<Entry>();
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long offset = 0;
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int i = 0;
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while (offset < file.MaxOffset)
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{
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uint size = file.View.ReadUInt32 (offset);
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offset += 4;
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string name;
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if (i < names.Count)
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name = names[i];
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else
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name = string.Format ("{0}#{1:D4}{2}", base_name, i, pack_ext);
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var entry = FormatCatalog.Instance.Create<Entry> (name);
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entry.Offset = offset;
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entry.Size = size;
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if (!entry.CheckPlacement (file.MaxOffset))
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return null;
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dir.Add (entry);
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++i;
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offset += size;
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}
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return new ArcFile (file, this, dir);
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}
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public override Stream OpenEntry (ArcFile arc, Entry entry)
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{
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Stream input = arc.File.CreateStream (entry.Offset, entry.Size);
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if (entry.Name.HasExtension (".res"))
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input = new XoredStream (input, 0x80);
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return input;
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}
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static readonly Regex FirstLineRe = new Regex (@"\\(\d)\\$");
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IEnumerable<string> ReadNames (string res_name, string num)
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{
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if (!VFS.FileExists (res_name))
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yield break;
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using (var pack = VFS.OpenView (res_name))
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{
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uint offset = 4 + pack.View.ReadUInt32 (0);
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offset += 4 + pack.View.ReadUInt32 (offset);
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uint size = pack.View.ReadUInt32 (offset);
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offset += 4;
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if (offset >= pack.MaxOffset)
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yield break;
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using (var res = pack.CreateStream (offset, size))
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using (var decrypted = new XoredStream (res, 0x80))
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using (var input = new StreamReader (decrypted, Encodings.cp932))
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{
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var line = input.ReadLine();
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if (string.IsNullOrEmpty (line))
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yield break;
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var match = FirstLineRe.Match (line);
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if (!match.Success || match.Groups[1].Value != num)
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yield break;
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while ((line = input.ReadLine()) != null)
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{
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yield return line;
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}
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}
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}
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}
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}
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}
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