mirror of
https://github.com/crskycode/GARbro.git
synced 2024-11-23 13:45:34 +08:00
(Experimental): SakanaGL resource archives.
This commit is contained in:
poddav
parent
7fe371df78
commit
6904afe2f1
226
Experimental/SakanaGL/ArcSX.cs
Normal file
226
Experimental/SakanaGL/ArcSX.cs
Normal file
@ -0,0 +1,226 @@
|
||||
//! \file ArcSX.cs
|
||||
//! \date 2022 Apr 29
|
||||
//! \brief SakanaGL resource archive implementation.
|
||||
//
|
||||
// Copyright (C) 2022 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 GameRes.Utility;
|
||||
using System;
|
||||
using System.Collections.Generic;
|
||||
using System.ComponentModel.Composition;
|
||||
using System.IO;
|
||||
using System.Text;
|
||||
|
||||
namespace GameRes.Formats.Sakana
|
||||
{
|
||||
internal class SxEntry : PackedEntry
|
||||
{
|
||||
public ushort Flags;
|
||||
|
||||
public bool IsEncrypted { get { return 0 == (Flags & 0x10); } }
|
||||
}
|
||||
|
||||
[Export(typeof(ArchiveFormat))]
|
||||
public class SxOpener : ArchiveFormat
|
||||
{
|
||||
public override string Tag { get { return "SXSTORAGE"; } }
|
||||
public override string Description { get { return "SakanaGL engine resource archive"; } }
|
||||
public override uint Signature { get { return 0; } }
|
||||
public override bool IsHierarchic { get { return true; } }
|
||||
public override bool CanWrite { get { return false; } }
|
||||
|
||||
const uint DefaultKey = 0x2E76034B;
|
||||
|
||||
public override ArcFile TryOpen (ArcView file)
|
||||
{
|
||||
var base_name = Path.GetFileName (file.Name);
|
||||
var sx_name = base_name.Substring (0, 4) + "(00).sx";
|
||||
sx_name = VFS.ChangeFileName (file.Name, sx_name);
|
||||
if (!VFS.FileExists (sx_name) || file.Name.Equals (sx_name, StringComparison.InvariantCultureIgnoreCase))
|
||||
return null;
|
||||
byte[] index_data;
|
||||
using (var sx = VFS.OpenView (sx_name))
|
||||
{
|
||||
if (sx.MaxOffset <= 0x10)
|
||||
return null;
|
||||
if (!sx.View.AsciiEqual (0, "SSXXDEFL"))
|
||||
return null;
|
||||
int key = Binary.BigEndian (sx.View.ReadInt32 (8));
|
||||
int length = (int)(sx.MaxOffset - 0x10);
|
||||
var index_packed = sx.View.ReadBytes (0x10, (uint)length);
|
||||
|
||||
long lkey = (long)key + length;
|
||||
lkey = key ^ (961 * lkey - 124789) ^ DefaultKey;
|
||||
uint key_lo = (uint)lkey;
|
||||
uint key_hi = (uint)(lkey >> 32) ^ 0x2E6;
|
||||
DecryptData (index_packed, key_lo, key_hi);
|
||||
|
||||
index_data = UnpackZstd (index_packed);
|
||||
}
|
||||
using (var index = new BinMemoryStream (index_data))
|
||||
{
|
||||
var reader = new SxIndexDeserializer (index, file.MaxOffset);
|
||||
var dir = reader.Deserialize();
|
||||
return new ArcFile (file, this, dir);
|
||||
}
|
||||
}
|
||||
|
||||
public override Stream OpenEntry (ArcFile arc, Entry entry)
|
||||
{
|
||||
var sx_entry = entry as SxEntry;
|
||||
if (null == sx_entry || (!sx_entry.IsEncrypted && !sx_entry.IsPacked))
|
||||
return base.OpenEntry (arc, entry);
|
||||
var input = arc.File.View.ReadBytes (entry.Offset, entry.Size);
|
||||
if (sx_entry.IsEncrypted)
|
||||
{
|
||||
uint key_lo = (uint)(entry.Offset >> 4) ^ (entry.Size << 16) ^ DefaultKey;
|
||||
uint key_hi = (entry.Size >> 16) ^ 0x2E6;
|
||||
DecryptData (input, key_lo, key_hi);
|
||||
}
|
||||
if (sx_entry.IsPacked)
|
||||
input = UnpackZstd (input);
|
||||
return new BinMemoryStream (input, entry.Name);
|
||||
}
|
||||
|
||||
internal static byte[] UnpackZstd (byte[] data)
|
||||
{
|
||||
int unpacked_size = BigEndian.ToInt32 (data, 0);
|
||||
using (var dec = new ZstdNet.Decompressor())
|
||||
{
|
||||
var packed = new ArraySegment<byte> (data, 4, data.Length - 4);
|
||||
return dec.Unwrap (packed, unpacked_size);
|
||||
}
|
||||
}
|
||||
|
||||
internal static void DecryptData (byte[] data, uint key_lo, uint key_hi)
|
||||
{
|
||||
if (data.Length < 4)
|
||||
return;
|
||||
key_lo ^= 0x159A55E5;
|
||||
key_hi ^= 0x075BCD15;
|
||||
uint v1 = key_hi ^ (key_hi << 11) ^ ((key_hi ^ (key_hi << 11)) >> 8) ^ 0x549139A;
|
||||
uint v2 = v1 ^ key_lo ^ (key_lo << 11) ^ ((key_lo ^ (key_lo << 11) ^ (v1 >> 11)) >> 8);
|
||||
uint v3 = v2 ^ (v2 >> 19) ^ 0x8E415C26;
|
||||
uint v4 = v3 ^ (v3 >> 19) ^ 0x4D9D5BB8;
|
||||
int count = data.Length / 4;
|
||||
unsafe
|
||||
{
|
||||
fixed (byte* data_raw = data)
|
||||
{
|
||||
uint* data32 = (uint*)&data_raw[0];
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
uint t1 = v4 ^ v1 ^ (v1 << 11) ^ ((v1 ^ (v1 << 11) ^ (v4 >> 11)) >> 8);
|
||||
uint t2 = v2 ^ (v2 << 11);
|
||||
v2 = v4;
|
||||
v4 = t1 ^ t2 ^ ((t2 ^ (t1 >> 11)) >> 8);
|
||||
data32[i] ^= (t1 >> 4) ^ (v4 << 12);
|
||||
v1 = v3;
|
||||
v3 = t1;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
internal class SxIndexDeserializer
|
||||
{
|
||||
IBinaryStream m_index;
|
||||
long m_max_offset;
|
||||
string[] m_name_list;
|
||||
List<Entry> m_dir;
|
||||
|
||||
public SxIndexDeserializer (IBinaryStream index, long max_offset)
|
||||
{
|
||||
m_index = index;
|
||||
m_max_offset = max_offset;
|
||||
}
|
||||
|
||||
public List<Entry> Deserialize ()
|
||||
{
|
||||
m_index.Position = 8;
|
||||
int count = Binary.BigEndian (m_index.ReadInt32());
|
||||
m_name_list = new string[count];
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
int length = m_index.ReadUInt8();
|
||||
m_name_list[i] = m_index.ReadCString (length, Encoding.UTF8);
|
||||
}
|
||||
|
||||
count = Binary.BigEndian (m_index.ReadInt32());
|
||||
m_dir = new List<Entry> (count);
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
m_index.ReadUInt16();
|
||||
ushort flags = Binary.BigEndian (m_index.ReadUInt16());
|
||||
uint offset = Binary.BigEndian (m_index.ReadUInt32());
|
||||
uint size = Binary.BigEndian (m_index.ReadUInt32());
|
||||
var entry = new SxEntry {
|
||||
Flags = flags,
|
||||
Offset = (long)offset << 4,
|
||||
Size = size,
|
||||
IsPacked = 0 != (flags & 0x03),
|
||||
};
|
||||
if (!entry.CheckPlacement (m_max_offset))
|
||||
return null;
|
||||
m_dir.Add (entry);
|
||||
}
|
||||
|
||||
count = Binary.BigEndian (m_index.ReadUInt16());
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
m_index.ReadUInt32();
|
||||
m_index.ReadUInt32();
|
||||
m_index.ReadUInt32();
|
||||
Binary.BigEndian (m_index.ReadUInt32()); // archive body length
|
||||
m_index.ReadUInt64();
|
||||
m_index.Seek (16, SeekOrigin.Current); // MD5 sum
|
||||
}
|
||||
|
||||
count = Binary.BigEndian (m_index.ReadUInt16());
|
||||
if (count > 0)
|
||||
m_index.Seek (count * 24, SeekOrigin.Current);
|
||||
DeserializeTree();
|
||||
return m_dir;
|
||||
}
|
||||
|
||||
void DeserializeTree (string path = "")
|
||||
{
|
||||
int count = Binary.BigEndian (m_index.ReadUInt16());
|
||||
int name_index = Binary.BigEndian (m_index.ReadInt32());
|
||||
int file_index = Binary.BigEndian (m_index.ReadInt32());
|
||||
var name = Path.Combine (path, m_name_list[name_index]);
|
||||
if (-1 == file_index)
|
||||
{
|
||||
for (int i = 0; i < count; ++i)
|
||||
{
|
||||
DeserializeTree (name);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
m_dir[file_index].Name = name;
|
||||
m_dir[file_index].Type = FormatCatalog.Instance.GetTypeFromName (name);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
15
Experimental/app.config
Normal file
15
Experimental/app.config
Normal file
@ -0,0 +1,15 @@
|
||||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<configuration>
|
||||
<runtime>
|
||||
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
|
||||
<dependentAssembly>
|
||||
<assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
|
||||
<bindingRedirect oldVersion="0.0.0.0-4.0.3.0" newVersion="4.0.3.0" />
|
||||
</dependentAssembly>
|
||||
<dependentAssembly>
|
||||
<assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
|
||||
<bindingRedirect oldVersion="0.0.0.0-4.0.5.0" newVersion="4.0.5.0" />
|
||||
</dependentAssembly>
|
||||
</assemblyBinding>
|
||||
</runtime>
|
||||
</configuration>
|
||||
Loading…
Reference in New Issue
Block a user