GARbro-mirror/ArcFormats/Hexenhaus/ArcARCC.cs
2016-03-07 18:09:09 +04:00

116 lines
4.6 KiB
C#

//! \file ArcARCC.cs
//! \date Sat Mar 05 10:24:00 2016
//! \brief Hexenhaus 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.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Linq;
namespace GameRes.Formats.Hexenhaus
{
[Export(typeof(ArchiveFormat))]
public class ArcOpener : ArchiveFormat
{
public override string Tag { get { return "ARCC"; } }
public override string Description { get { return "Hexenhaus resource archive"; } }
public override uint Signature { get { return 0x43435241; } } // 'ARCC'
public override bool IsHierarchic { get { return false; } }
public override bool CanCreate { get { return false; } }
public ArcOpener ()
{
Extensions = new string[] { "arc" };
}
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (0x14);
if (!IsSaneCount (count))
return null;
long index_offset = 0x2A;
if (!file.View.AsciiEqual (index_offset, "NAME"))
return null;
var addr_offset = file.View.ReadInt64 (index_offset+4);
index_offset += 0xE;
if (!file.View.AsciiEqual (index_offset, "NIDX"))
return null;
index_offset += 4;
var nidx_offsets = new uint[count]; // name offsets
for (int i = 0; i < count; ++i)
{
nidx_offsets[i] = file.View.ReadUInt32 (index_offset+2);
index_offset += 8;
}
if (!file.View.AsciiEqual (index_offset, "EIDX"))
return null;
index_offset += 4 + 8 * count;
if (!file.View.AsciiEqual (index_offset, "CINF"))
return null;
index_offset += 4;
var name_buffer = new byte[0x40];
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
index_offset += 6;
ushort name_length = file.View.ReadUInt16 (index_offset);
if (name_length > name_buffer.Length)
name_buffer = new byte[name_length];
file.View.Read (index_offset+4, name_buffer, 0, name_length);
index_offset += 6 + name_length;
var name = DecryptName (name_buffer, name_length);
var entry = FormatCatalog.Instance.Create<Entry> (name);
dir.Add (entry);
}
index_offset = addr_offset;
if (!file.View.AsciiEqual (index_offset, "ADDR"))
return null;
index_offset += 4;
for (int i = 0; i < count; ++i)
{
dir[i].Offset = file.View.ReadInt64 (index_offset+2);
index_offset += 12;
}
foreach (var entry in dir)
{
if (!file.View.AsciiEqual (entry.Offset, "FILE"))
continue;
entry.Size = file.View.ReadUInt32 (entry.Offset+0x18);
entry.Offset += 0x22;
}
dir = dir.Where (entry => entry.Size != 0).ToList();
if (0 == dir.Count)
return null;
return new ArcFile (file, this, dir);
}
static string DecryptName (byte[] name, int length)
{
for (int i = 0; i < length; ++i)
name[i] ^= 0x69;
return Encodings.cp932.GetString (name, 0, length);
}
}
}