GARbro-mirror/Legacy/Factor/ArcRES.cs

131 lines
5.1 KiB
C#

//! \file ArcRES.cs
//! \date 2017 Nov 29
//! \brief Factor resource archive.
//
// Copyright (C) 2017 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.Text.RegularExpressions;
namespace GameRes.Formats.Factor
{
[Export(typeof(ArchiveFormat))]
public class PackOpener : ArchiveFormat
{
public override string Tag { get { return "PACK/FACTOR"; } }
public override string Description { get { return "Factor resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public PackOpener ()
{
Extensions = new string[] { "" };
}
static readonly Regex PackNameRe = new Regex (@"^pack(\d)$");
public override ArcFile TryOpen (ArcView file)
{
var base_name = Path.GetFileNameWithoutExtension (file.Name);
var match = PackNameRe.Match (base_name);
if (!match.Success)
return null;
var pack_ext = Path.GetExtension (file.Name);
List<string> names = new List<string>();
/*
if (pack_ext.Equals (".bmp", StringComparison.InvariantCultureIgnoreCase))
{
var res_name = Path.ChangeExtension (file.Name, "res");
var res_num = match.Groups[1].Value;
names.AddRange (ReadNames (res_name, res_num));
}
*/
var dir = new List<Entry>();
long offset = 0;
int i = 0;
while (offset < file.MaxOffset)
{
uint size = file.View.ReadUInt32 (offset);
offset += 4;
string name;
if (i < names.Count)
name = names[i];
else
name = string.Format ("{0}#{1:D4}{2}", base_name, i, pack_ext);
var entry = FormatCatalog.Instance.Create<Entry> (name);
entry.Offset = offset;
entry.Size = size;
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
++i;
offset += size;
}
return new ArcFile (file, this, dir);
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
Stream input = arc.File.CreateStream (entry.Offset, entry.Size);
if (entry.Name.HasExtension (".res"))
input = new XoredStream (input, 0x80);
return input;
}
static readonly Regex FirstLineRe = new Regex (@"\\(\d)\\$");
IEnumerable<string> ReadNames (string res_name, string num)
{
if (!VFS.FileExists (res_name))
yield break;
using (var pack = VFS.OpenView (res_name))
{
uint offset = 4 + pack.View.ReadUInt32 (0);
offset += 4 + pack.View.ReadUInt32 (offset);
uint size = pack.View.ReadUInt32 (offset);
offset += 4;
if (offset >= pack.MaxOffset)
yield break;
using (var res = pack.CreateStream (offset, size))
using (var decrypted = new XoredStream (res, 0x80))
using (var input = new StreamReader (decrypted, Encodings.cp932))
{
var line = input.ReadLine();
if (string.IsNullOrEmpty (line))
yield break;
var match = FirstLineRe.Match (line);
if (!match.Success || match.Groups[1].Value != num)
yield break;
while ((line = input.ReadLine()) != null)
{
yield return line;
}
}
}
}
}
}