GARbro-mirror/ArcFormats/Hypatia/ArcLPK.cs

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//! \file ArcLPK.cs
//! \date 2022 Apr 12
//! \brief Kogado resource archive.
//
// Copyright (C) 2022 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;
namespace GameRes.Formats.Kogado
{
[Export(typeof(ArchiveFormat))]
public class LpkOpener : ArchiveFormat
{
public override string Tag { get { return "LPK/KOGADO"; } }
public override string Description { get { return "Kogado resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public override ArcFile TryOpen (ArcView file)
{
if (!file.Name.HasExtension (".lpk") || file.MaxOffset < 0x2800)
return null;
uint index_offset = 0;
var dir = new List<Entry> ();
for (int i = 0; i < 0x200; ++i)
{
if (file.View.ReadByte (index_offset) == 0)
break;
var name = file.View.ReadString (index_offset, 0x10);
if (!IsValidEntryName (name))
return null;
index_offset += 0x10;
var entry = Create<Entry> (name);
dir.Add (entry);
}
if (0 == dir.Count)
return null;
index_offset = 0x2000;
uint base_offset = 0x2800;
uint offset = file.View.ReadUInt32 (index_offset);
foreach (var entry in dir)
{
index_offset += 4;
uint next_offset = file.View.ReadUInt32 (index_offset);
uint size = next_offset - offset;
entry.Offset = offset + base_offset;
entry.Size = size;
if (!entry.CheckPlacement (file.MaxOffset))
return null;
offset = next_offset;
}
return new ArcFile (file, this, dir);
}
}
}