GARbro-mirror/ArcFormats/NekoSDK/ArcDAT.cs
morkt f1d66206bc (IResource.CanWrite): new property.
(ArchiveFormat.CanCreate): renamed to CanWrite.
2016-10-11 00:05:22 +04:00

96 lines
3.9 KiB
C#

//! \file ArcDAT.cs
//! \date Tue Aug 02 12:02:04 2016
//! \brief NekoSDK resource archives.
//
// 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 GameRes.Compression;
using GameRes.Utility;
namespace GameRes.Formats.NekoSDK
{
[Export(typeof(ArchiveFormat))]
public class DatOpener : ArchiveFormat
{
public override string Tag { get { return "DAT/NekoSDK"; } }
public override string Description { get { return "NekoSDK 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 DatOpener ()
{
Extensions = new string[] { "dat" };
}
public override ArcFile TryOpen (ArcView file)
{
uint first_offset = file.View.ReadUInt32 (0x88) ^ 0xCACACAu;
if (first_offset <= 0 || first_offset >= file.MaxOffset)
return null;
int count = (int)first_offset / 0x8C;
if (first_offset != count * 0x8C)
return null;
if (!IsSaneCount (--count))
return null;
uint index_offset = 0;
var dir = new List<Entry> (count);
var name_buffer = new byte[0x80];
for (int i = 0; i < count; ++i)
{
file.View.Read (index_offset, name_buffer, 0, 0x80);
if (0 == name_buffer[0])
return null;
var name = Binary.GetCString (name_buffer, 0, name_buffer.Length);
var entry = FormatCatalog.Instance.Create<PackedEntry> (name);
entry.UnpackedSize = file.View.ReadUInt32 (index_offset+0x80) ^ 0xCACACAu;
entry.Size = file.View.ReadUInt32 (index_offset+0x84) ^ 0xCACACAu;
entry.Offset = file.View.ReadUInt32 (index_offset+0x88) ^ 0xCACACAu;
if (entry.Offset < first_offset || !entry.CheckPlacement (file.MaxOffset))
return null;
entry.IsPacked = entry.UnpackedSize != 0;
if (!entry.IsPacked)
entry.UnpackedSize = entry.Size;
index_offset += 0x8C;
dir.Add(entry);
}
if (0 == dir.Count)
return null;
return new ArcFile (file, this, dir);
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var input = arc.File.CreateStream (entry.Offset, entry.Size);
var pent = entry as PackedEntry;
if (null == pent || !pent.IsPacked)
return input;
return new LzssStream (input);
}
}
}