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implemented 0verflow DAT archives.

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morkt 2017-01-23 18:49:49 +04:00
parent 68f602640e
commit 0acded951c
2 changed files with 106 additions and 0 deletions
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1
ArcFormats/ArcFormats.csproj
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@ -107,6 +107,7 @@
<Compile Include="ExeFile.cs" />
<Compile Include="GameSystem\ArcCHR.cs" />
<Compile Include="GameSystem\ArcCMP.cs" />
<Compile Include="GameSystem\ArcDAT.cs" />
<Compile Include="GameSystem\ImageALP.cs" />
<Compile Include="GameSystem\ImageBGD.cs" />
<Compile Include="GameSystem\ImageCGD.cs" />

105
ArcFormats/GameSystem/ArcDAT.cs Normal file
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@ -0,0 +1,105 @@
//! \file ArcDAT.cs
//! \date Sat Jan 21 18:32:40 2017
//! \brief 0verflow resource archive.
//
// Copyright (C) 2017 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 System.Text;
namespace GameRes.Formats.GameSystem
{
[Export(typeof(ArchiveFormat))]
public class DatOpener : ArchiveFormat
{
public override string Tag { get { return "DAT/0verflow"; } }
public override string Description { get { return "0verflow 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)
{
uint index_size = file.View.ReadUInt32 (0);
if (index_size <= 2 || index_size >= (uint.MaxValue >> 9))
return null;
index_size <<= 9;
if (index_size >= file.MaxOffset)
return null;
uint index_offset = 0x400;
long offset = (long)file.View.ReadUInt32 (index_offset+12) << 9;
if (offset != index_size)
return null;
var dir = new List<Entry>();
var entry_buf = file.View.ReadBytes (index_offset, 12);
while (!Array.TrueForAll (entry_buf, x => x == 0xFF))
{
index_offset += 0x10;
if (index_offset >= index_size)
return null;
var name = RestoreName (entry_buf);
var entry = FormatCatalog.Instance.Create<Entry> (name);
file.View.Read (index_offset, entry_buf, 0, 12);
long next_offset = (long)file.View.ReadUInt32 (index_offset+12) << 9;
if (next_offset < offset || next_offset > file.MaxOffset)
return null;
entry.Offset = offset;
entry.Size = (uint)(next_offset - offset);
dir.Add (entry);
offset = next_offset;
}
if (0 == dir.Count)
return null;
return new ArcFile (file, this, dir);
}
static string RestoreName (byte[] index)
{
var name_buf = new byte[0x10];
int dst = 0;
for (int i = 0; i < 12; i += 3)
{
int word = index[i] << 16 | index[i+1] << 8 | index[i+2];
name_buf[dst++] = (byte)(0x20 + ((word >> 18) & 0x3F));
name_buf[dst++] = (byte)(0x20 + ((word >> 12) & 0x3F));
name_buf[dst++] = (byte)(0x20 + ((word >> 6) & 0x3F));
name_buf[dst++] = (byte)(0x20 + (word & 0x3F));
}
int name_end = Array.IndexOf<byte> (name_buf, 0x20, 0, 12);
if (0 == name_end)
throw new InvalidFormatException();
if (-1 == name_end)
name_end = 12;
var name = Encoding.ASCII.GetString (name_buf, 0, name_end);
int ext_end = Array.IndexOf<byte> (name_buf, 0x20, 12, 4);
if (12 == ext_end)
return name;
if (-1 == ext_end)
ext_end = 16;
var ext = Encoding.ASCII.GetString (name_buf, 12, ext_end-12);
return name + '.' + ext;
}
}
}