GARbro-mirror/ArcFormats/AdvSys/ArcAdvSys3.cs

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2016-10-13 14:54:02 +08:00
//! \file ArcAdvSys3.cs
//! \date Thu Oct 13 03:13:16 2016
//! \brief AdvSys3 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;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Linq;
namespace GameRes.Formats.AdvSys
{
[Export(typeof(ArchiveFormat))]
public class ArcOpener : ArchiveFormat
{
public override string Tag { get { return "ARC/ADVSYS3"; } }
public override string Description { get { return "AdvSys3 engine resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public ArcOpener ()
{
Extensions = new string[] { "dat" };
}
public override ArcFile TryOpen (ArcView file)
{
if (!file.Name.EndsWith (".dat", StringComparison.InvariantCultureIgnoreCase)
|| !Path.GetFileName (file.Name).StartsWith ("arc", StringComparison.InvariantCultureIgnoreCase))
return null;
long current_offset = 0;
var dir = new List<Entry>();
while (current_offset < file.MaxOffset)
{
uint size = file.View.ReadUInt32 (current_offset);
if (0 == size)
break;
uint name_length = file.View.ReadUInt16 (current_offset+8);
if (0 == name_length || name_length > 0x100)
return null;
var name = file.View.ReadString (current_offset+10, name_length);
if (0 == name.Length)
return null;
current_offset += 10 + name_length;
if (current_offset + size > file.MaxOffset)
return null;
var entry = new Entry {
Name = name,
Offset = current_offset,
Size = size,
};
uint signature = file.View.ReadUInt32 (current_offset);
if (file.View.AsciiEqual (current_offset+4, "GWD"))
{
entry.Type = "image";
entry.Name = Path.ChangeExtension (entry.Name, "gwd");
}
else
{
var res = AutoEntry.DetectFileType (signature);
if (res != null)
{
entry.Type = res.Type;
entry.Name = Path.ChangeExtension (entry.Name, res.Extensions.FirstOrDefault());
}
}
dir.Add (entry);
current_offset += size;
}
if (0 == dir.Count)
return null;
return new ArcFile (file, this, dir);
}
}
}