implemented 'SPack' archives.

This commit is contained in:
morkt 2015-05-22 10:08:11 +04:00
parent 3041b90606
commit 461e31b0d7
3 changed files with 225 additions and 1 deletions

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@ -107,6 +107,7 @@
<Compile Include="ArcPAC.cs" />
<Compile Include="ArcPD.cs" />
<Compile Include="ArcRPA.cs" />
<Compile Include="ArcSPack.cs" />
<Compile Include="ArcSteinsGate.cs" />
<Compile Include="ArcWARC.cs" />
<Compile Include="ArcWILL.cs" />

214
ArcFormats/ArcSPack.cs Normal file
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@ -0,0 +1,214 @@
//! \file ArcSPack.cs
//! \date Fri May 22 04:54:08 2015
//! \brief 'SPack' resource archives.
//
// 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 System.Security.Cryptography;
using GameRes.Utility;
namespace GameRes.Formats.SPack
{
internal class SPackEntry : PackedEntry
{
public byte Method;
public ushort Crc;
}
[Export(typeof(ArchiveFormat))]
public class DatOpener : ArchiveFormat
{
public override string Tag { get { return "SPACK"; } }
public override string Description { get { return "SPack resource archive"; } }
public override uint Signature { get { return 0x63615053; } } // 'SPac'
public override bool IsHierarchic { get { return false; } }
public override bool CanCreate { get { return false; } }
public DatOpener ()
{
Extensions = new string[] { "dat" };
}
public override ArcFile TryOpen (ArcView file)
{
if ('k' != file.View.ReadInt16 (4))
return null;
int version = file.View.ReadInt16 (6);
if (1 != version)
return null;
uint data_size = file.View.ReadUInt32 (8);
int count = file.View.ReadInt32 (0x10);
if (count <= 0 || count > 0xfffff)
return null;
uint index_size = (uint)(0x38 * count);
long base_offset = 0x18;
long index_offset = base_offset + data_size;
if (index_offset >= file.MaxOffset || index_size > file.View.Reserve (index_offset, index_size))
return null;
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
var name = file.View.ReadString (index_offset, 0x20);
index_offset += 0x20;
var entry = new SPackEntry
{
Name = name,
Offset = base_offset + file.View.ReadUInt32 (index_offset),
UnpackedSize = file.View.ReadUInt32 (index_offset+4),
Size = file.View.ReadUInt32 (index_offset+8),
Method = file.View.ReadByte (index_offset+12),
Crc = file.View.ReadUInt16 (index_offset+14),
};
if (!entry.CheckPlacement (file.MaxOffset))
return null;
if (name.EndsWith (".dat", StringComparison.InvariantCultureIgnoreCase))
entry.Type = "audio";
else
entry.Type = FormatCatalog.Instance.GetTypeFromName (name);
entry.IsPacked = entry.Method != 0;
dir.Add (entry);
index_offset += 0x18;
}
return new ArcFile (file, this, dir);
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
{
var input = arc.File.CreateStream (entry.Offset, entry.Size);
var packed_entry = entry as SPackEntry;
if (null == packed_entry || !packed_entry.IsPacked)
return input;
if (1 == packed_entry.Method)
return new CryptoStream (input, new Kogado.NotTransform(), CryptoStreamMode.Read);
if (2 == packed_entry.Method)
{
using (var reader = new PackedReader (packed_entry, input))
{
reader.Unpack();
return new MemoryStream (reader.Data);
}
}
return input;
}
}
internal class PackedReader : IDisposable
{
BinaryReader m_input;
uint m_packed_size;
byte[] m_output;
public byte[] Data { get { return m_output; } }
public PackedReader (SPackEntry entry, Stream input)
{
m_input = new BinaryReader (input);
m_packed_size = entry.Size;
m_output = new byte[entry.UnpackedSize];
}
public byte[] Unpack ()
{
int dst = 0;
uint src = 0;
uint ctl = 0;
uint mask = 0;
while (dst < m_output.Length && src < m_packed_size)
{
if (0 == mask)
{
ctl = m_input.ReadUInt32();
src += 4;
mask = 0x80000000;
}
if (0 != (ctl & mask))
{
int copy_count, offset;
offset = m_input.ReadByte();
src++;
copy_count = offset >> 4;
offset &= 0x0f;
if (15 == copy_count)
{
copy_count = m_input.ReadUInt16();
src += 2;
}
else if (14 == copy_count)
{
copy_count = m_input.ReadByte();
src++;
}
else
copy_count++;
if (offset < 10)
offset++;
else
{
offset = ((offset - 10) << 8) | m_input.ReadByte();
src++;
}
if (dst + copy_count > m_output.Length)
copy_count = m_output.Length - dst;
Binary.CopyOverlapped (m_output, dst-offset, dst, copy_count);
dst += copy_count;
}
else
{
m_output[dst++] = m_input.ReadByte();
src++;
}
mask >>= 1;
}
return m_output;
}
#region IDisposable Members
bool disposed = false;
public void Dispose ()
{
Dispose (true);
GC.SuppressFinalize (this);
}
protected virtual void Dispose (bool disposing)
{
if (!disposed)
{
if (disposing)
{
m_input.Dispose();
}
disposed = true;
}
}
#endregion
}
}

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@ -156,12 +156,21 @@ Rikorisu ~Lycoris Radiata~<br/>
<tr class="odd"><td>*.mfg<br/>*.mfm<br/>*.mfs</td><td><tt>ALPF</tt></td><td>No</td><td rowspan="2">Silky's</td><td rowspan="2">Jokei Kazoku</td></tr>
<tr class="odd"><td>*</td><td><tt>MFG_</tt><br/><tt>MFGA</tt><br/><tt>MFGC</tt></td><td>No</td></tr>
<tr><td>*.pmp<br/>*.pmw</td><td>-</td><td>Yes</td><td>ScenePlayer</td><td>Nyuujoku Hitozuma Jogakuen</td></tr>
<tr class="odd"><td>*.dat</td><td><tt>GAMEDAT PACK</tt><br/><tt>GAMEDAT PAC2</tt></td><td>No</td><td rowspan="2">Pajamas Soft</td><td rowspan="2">Prism Heart</tr>
<tr class="odd"><td>*.dat</td><td><tt>GAMEDAT PACK</tt><br/><tt>GAMEDAT PAC2</tt></td><td>No</td><td rowspan="2">Pajamas Soft</td><td rowspan="2">
Aneimo 2 ~Second Stage~<br/>
Prism Heart<br/>
</tr>
<tr class="odd"><td>*.epa</td><td><tt>EP</tt></td><td>No</td></tr>
<tr><td>*.arc</td><td><tt>MAI</tt></td><td>No</td><td rowspan="2">Matsuri Kikaku</td><td rowspan="2">Chikan Sharyou Nigousha</td></tr>
<tr><td>*.ami<br/>*.cmp<br/></td><td><tt>AM</tt><br/><tt>CM</tt></td><td>No</td></tr>
<tr class="odd"><td>*.mgd<br/>*.mgs</td><td><tt>MGD</tt><br/><tt>MGS</tt></td><td>No</td><td rowspan="2">MEGU</td><td rowspan="2">Seduce</tr>
<tr class="odd"><td>*.agc</td><td><tt>AGd</tt></td><td>No</td></tr>
<tr><td>*.pak+*.idx</td><td>-</td><td>No</td><td rowspan="2">EAGLS</td><td rowspan="2">
Oppai Baka<br/>
Mainichi Shabutte Ii Desu ka?<br/>
</td></tr>
<tr><td>*.gr</td><td>-</td><td>No</td></tr>
<tr class="odd"><td>*.dat</td><td><tt>SPack</tt></td><td>No</td><td rowspan="2">Goku-Fero</td><td rowspan="2">Inchuu Reiki Elenova</tr>
</table>
<p><a name="note-1">[1]</a> Non-encrypted only</p>
</body>