GARbro-mirror/Legacy/HyperWorks/ArcPAK.cs

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2023-08-24 05:33:50 +08:00
//! \file ArcPAK.cs
//! \date 2022 May 28
//! \brief HyperWorks 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.HyperWorks
{
[Export(typeof(ArchiveFormat))]
public class PakOpener : ArchiveFormat
{
public override string Tag { get { return "PAK/ACE"; } }
public override string Description { get { return "HyperWorks resource archive"; } }
public override uint Signature { get { return 0x4B434150; } } // 'PACK'
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public override ArcFile TryOpen (ArcView file)
{
int index_size = file.View.ReadInt32 (4);
if (index_size >= file.MaxOffset - 4)
return null;
int count = index_size / 0x18;
if (!IsSaneCount (count))
return null;
uint pos = 8;
file.View.Reserve (pos, (uint)index_size);
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
uint name_length = file.View.ReadByte (pos+8);
if (name_length > 15)
return null;
var name = file.View.ReadString (pos+9, name_length);
var entry = Create<Entry> (name);
entry.Offset = file.View.ReadUInt32 (pos);
entry.Size = file.View.ReadUInt32 (pos+4);
if (!entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
pos += 0x18;
}
return new ArcFile (file, this, dir);
}
}
}