mirror of
https://github.com/crskycode/GARbro.git
synced 2024-12-25 12:24:12 +08:00
101 lines
4.3 KiB
C#
101 lines
4.3 KiB
C#
//! \file ArcAi6Win.cs
|
|
//! \date Sat Nov 28 12:44:51 2015
|
|
//! \brief Ai6Win 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.Compression;
|
|
using GameRes.Utility;
|
|
|
|
namespace GameRes.Formats.Silky
|
|
{
|
|
[Export(typeof(ArchiveFormat))]
|
|
public class Ai6Opener : ArchiveFormat
|
|
{
|
|
public override string Tag { get { return "ARC/AI6WIN"; } }
|
|
public override string Description { get { return "AI6WIN engine resource archive"; } }
|
|
public override uint Signature { get { return 0; } }
|
|
public override bool IsHierarchic { get { return true; } }
|
|
public override bool CanWrite { get { return false; } }
|
|
|
|
public Ai6Opener ()
|
|
{
|
|
Extensions = new string[] { "arc" };
|
|
}
|
|
|
|
public override ArcFile TryOpen (ArcView file)
|
|
{
|
|
int count = file.View.ReadInt32 (0);
|
|
if (!IsSaneCount (count))
|
|
return null;
|
|
long index_offset = 4;
|
|
uint index_size = (uint)(count * (0x104 + 12));
|
|
if (index_size > file.View.Reserve (index_offset, index_size))
|
|
return null;
|
|
var name_buffer = new byte[0x104];
|
|
var dir = new List<Entry>();
|
|
for (int i = 0; i < count; ++i)
|
|
{
|
|
file.View.Read (index_offset, name_buffer, 0, (uint)name_buffer.Length);
|
|
int name_length = Array.IndexOf<byte> (name_buffer, 0);
|
|
if (0 == name_length)
|
|
return null;
|
|
if (-1 == name_length)
|
|
name_length = name_buffer.Length;
|
|
byte key = (byte)(name_length+1);
|
|
for (int j = 0; j < name_length; ++j)
|
|
{
|
|
name_buffer[j] -= key--;
|
|
char c = (char)name_buffer[j];
|
|
if (VFS.InvalidFileNameChars.Contains (c) && c != '/')
|
|
return null;
|
|
}
|
|
var name = Encodings.cp932.GetString (name_buffer, 0, name_length);
|
|
index_offset += 0x104;
|
|
var entry = FormatCatalog.Instance.Create<PackedEntry> (name);
|
|
entry.Size = Binary.BigEndian (file.View.ReadUInt32 (index_offset));
|
|
entry.UnpackedSize = Binary.BigEndian (file.View.ReadUInt32 (index_offset+4));
|
|
entry.Offset = Binary.BigEndian (file.View.ReadUInt32 (index_offset+8));
|
|
if (entry.Offset < index_size+4 || !entry.CheckPlacement (file.MaxOffset))
|
|
return null;
|
|
entry.IsPacked = entry.Size != entry.UnpackedSize;
|
|
dir.Add (entry);
|
|
index_offset += 12;
|
|
}
|
|
return new ArcFile (file, this, dir);
|
|
}
|
|
|
|
public override Stream OpenEntry (ArcFile arc, Entry entry)
|
|
{
|
|
var pent = entry as PackedEntry;
|
|
if (null == pent || !pent.IsPacked)
|
|
return base.OpenEntry (arc, entry);
|
|
var input = arc.File.CreateStream (entry.Offset, entry.Size);
|
|
return new LzssStream (input);
|
|
}
|
|
}
|
|
}
|