GARbro-mirror/ArcFormats/MnoViolet/ArcMnoViolet.cs

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//! \file ArcMnoViolet.cs
//! \date Fri Apr 03 23:32:37 2015
//! \brief M no Violet engine archives implementation.
//
// 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.Utility;
namespace GameRes.Formats.MnoViolet
{
[Export(typeof(ArchiveFormat))]
public class DatOpener : ArchiveFormat
{
public override string Tag { get { return "MNV"; } }
public override string Description { get { return "M no Violet resource archive"; } }
public override uint Signature { get { return 0; } }
public override bool IsHierarchic { get { return true; } }
public override bool CanCreate { get { return false; } }
public DatOpener ()
{
Extensions = new string[] { "dat" };
}
public override ArcFile TryOpen (ArcView file)
{
int count = file.View.ReadInt32 (0);
if (count <= 0 || count > 0xfffff)
return null;
uint name_size = 100;
uint index_size = (uint)((name_size+8) * count);
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uint first_offset = file.View.ReadUInt32 (4+name_size+4);
if (first_offset != (4 + index_size) || index_size > file.View.Reserve (4, index_size))
return null;
var dir = new List<Entry> (count);
long index_offset = 4;
for (int i = 0; i < count; ++i)
{
string name = file.View.ReadString (index_offset, name_size);
if (0 == name.Length)
return null;
index_offset += name_size;
uint offset = file.View.ReadUInt32 (index_offset+4);
var entry = AutoEntry.Create (file, offset, name);
entry.Size = file.View.ReadUInt32 (index_offset);
if (offset <= index_size || !entry.CheckPlacement (file.MaxOffset))
return null;
dir.Add (entry);
index_offset += 8;
}
return new ArcFile (file, this, dir);
}
}
}