GARbro-mirror/ArcFormats/AliceSoft/ArcALD.cs

88 lines
3.6 KiB
C#
Raw Normal View History

//! \file ArcALD.cs
//! \date Thu Apr 09 20:33:19 2015
//! \brief AliceSoft System engine resource archive.
//
// Copyright (C) 2015 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 GameRes.Utility;
namespace GameRes.Formats.AliceSoft
{
[Export(typeof(ArchiveFormat))]
public class AldOpener : ArchiveFormat
{
public override string Tag { get { return "ALD"; } }
public override string Description { get { return "AliceSoft System 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)
{
long index_offset = file.MaxOffset - 0x10;
if (index_offset <= 0)
return null;
if (0x014c4e != file.View.ReadUInt32 (index_offset)
|| 0x10 != file.View.ReadUInt32 (index_offset+4))
return null;
int count = file.View.ReadUInt16 (index_offset+9);
if (0 == count)
return null;
uint index_length = (file.View.ReadUInt32 (0) & 0xffffff) << 8;
if (index_length > file.View.Reserve (0, index_length))
return null;
var dir = new List<Entry> (count);
index_offset = 3;
for (int i = 0; i < count; ++i)
{
uint offset = (file.View.ReadUInt32 (index_offset) & 0xffffff) << 8;
if (0 == offset)
break;
if (offset >= file.MaxOffset)
return null;
dir.Add (new Entry { Offset = offset });
index_offset += 3;
}
foreach (var entry in dir)
{
var offset = entry.Offset;
uint header_size = file.View.ReadUInt32 (offset);
if (header_size <= 0x10)
return null;
entry.Size = file.View.ReadUInt32 (offset+4);
entry.Name = file.View.ReadString (offset+0x10, header_size-0x10);
entry.Offset = offset + header_size;
if (!entry.CheckPlacement (file.MaxOffset))
return null;
entry.Type = FormatCatalog.Instance.GetTypeFromName (entry.Name);
}
return new ArcFile (file, this, dir);
}
}
}