mirror of
https://github.com/crskycode/GARbro.git
synced 2024-12-24 03:44:13 +08:00
265 lines
9.6 KiB
C#
265 lines
9.6 KiB
C#
//! \file ArcMK2.cs
|
|
//! \date Thu Aug 04 05:11:20 2016
|
|
//! \brief MAIKA resource archives.
|
|
//
|
|
// Copyright (C) 2016-2018 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.Maika
|
|
{
|
|
[Serializable]
|
|
public class ScrambleScheme
|
|
{
|
|
public uint ScrambledSize;
|
|
public Tuple<byte, byte>[] ScrambleMap;
|
|
}
|
|
|
|
internal class MkArchive : ArcFile
|
|
{
|
|
public readonly ScrambleScheme Scheme;
|
|
|
|
public MkArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, ScrambleScheme scheme)
|
|
: base (arc, impl, dir)
|
|
{
|
|
Scheme = scheme;
|
|
}
|
|
}
|
|
|
|
[Export(typeof(ArchiveFormat))]
|
|
public class Mk2Opener : ArchiveFormat
|
|
{
|
|
public override string Tag { get { return "DAT/MK2"; } }
|
|
public override string Description { get { return "MAIKA resource archive"; } }
|
|
public override uint Signature { get { return 0x2E324B4D; } } // 'MK2.0'
|
|
public override bool IsHierarchic { get { return false; } }
|
|
public override bool CanWrite { get { return false; } }
|
|
|
|
public Mk2Opener ()
|
|
{
|
|
// 'MK2.0' 'BL2.0'. 'SL1.0', 'LS2.0', 'AR2.0', 'MP2.0'
|
|
Signatures = new uint[] {
|
|
0x2E324B4D, 0x2E324C42, 0x2E314C53, 0x2E32534C, 0x2E325241, 0x2E32504D
|
|
};
|
|
}
|
|
|
|
public override ArcFile TryOpen (ArcView file)
|
|
{
|
|
if (!file.View.AsciiEqual (4, "0\0"))
|
|
return null;
|
|
int count = file.View.ReadInt32 (0x12);
|
|
if (!IsSaneCount (count))
|
|
return null;
|
|
|
|
uint base_offset = file.View.ReadUInt16 (8);
|
|
uint index_offset = file.View.ReadUInt32 (0xE);
|
|
if (index_offset >= file.MaxOffset)
|
|
return null;
|
|
uint index_size = file.View.ReadUInt32 (0xA);
|
|
if (index_size > file.View.Reserve (index_offset, index_size))
|
|
return null;
|
|
|
|
uint current_offset = index_offset;
|
|
var dir = new List<Entry> (count);
|
|
for (int i = 0; i < 512; ++i)
|
|
{
|
|
uint entry_offset = index_offset + file.View.ReadUInt32 (current_offset);
|
|
int n = file.View.ReadUInt16 (current_offset+4);
|
|
if (n > 0)
|
|
{
|
|
for (int j = 0; j < n; ++j)
|
|
{
|
|
uint offset = file.View.ReadUInt32 (entry_offset) + base_offset;
|
|
uint size = file.View.ReadUInt32 (entry_offset+4);
|
|
uint name_length = file.View.ReadByte (entry_offset+8);
|
|
if (0 == name_length)
|
|
return null;
|
|
var name = file.View.ReadString (entry_offset+9, name_length);
|
|
entry_offset += 9 + name_length;
|
|
|
|
var entry = FormatCatalog.Instance.Create<Entry> (name);
|
|
entry.Offset = offset;
|
|
entry.Size = size;
|
|
if (!entry.CheckPlacement (index_offset))
|
|
return null;
|
|
dir.Add (entry);
|
|
}
|
|
}
|
|
else if (-1 == file.View.ReadInt32 (entry_offset))
|
|
break;
|
|
current_offset += 6;
|
|
}
|
|
return GetArchive (file, dir);
|
|
}
|
|
|
|
internal ArcFile GetArchive (ArcView file, List<Entry> dir)
|
|
{
|
|
if (0 == dir.Count)
|
|
return null;
|
|
string arc_id = file.View.ReadString (0, 5);
|
|
ScrambleScheme scheme;
|
|
if (!KnownSchemes.TryGetValue (arc_id, out scheme))
|
|
scheme = DefaultScheme;
|
|
return new MkArchive (file, this, dir, scheme);
|
|
}
|
|
|
|
public override Stream OpenEntry (ArcFile arc, Entry entry)
|
|
{
|
|
ushort signature = arc.File.View.ReadUInt16 (entry.Offset);
|
|
// C1/D1/E1/F1
|
|
if (0x3146 != signature && 0x3143 != signature && 0x3144 != signature && 0x3145 != signature)
|
|
return base.OpenEntry (arc, entry);
|
|
var mkarc = arc as MkArchive;
|
|
ScrambleScheme scheme = mkarc != null ? mkarc.Scheme : DefaultScheme;
|
|
|
|
uint packed_size = arc.File.View.ReadUInt32 (entry.Offset+2);
|
|
if (packed_size < scheme.ScrambledSize || packed_size > entry.Size-10)
|
|
return base.OpenEntry (arc, entry);
|
|
|
|
Stream input;
|
|
// XXX scrambling might be applicable for 'E1' signatures only
|
|
if (0x3145 == signature && scheme.ScrambledSize > 0)
|
|
{
|
|
var prefix = arc.File.View.ReadBytes (entry.Offset+10, scheme.ScrambledSize);
|
|
foreach (var pair in scheme.ScrambleMap)
|
|
{
|
|
byte t = prefix[pair.Item1];
|
|
prefix[pair.Item1] = prefix[pair.Item2];
|
|
prefix[pair.Item2] = t;
|
|
}
|
|
input = arc.File.CreateStream (entry.Offset+10+scheme.ScrambledSize, packed_size-scheme.ScrambledSize);
|
|
input = new PrefixStream (prefix, input);
|
|
}
|
|
else
|
|
{
|
|
input = arc.File.CreateStream (entry.Offset+10, packed_size);
|
|
}
|
|
input = new LzssStream (input);
|
|
|
|
var header = new byte[5];
|
|
input.Read (header, 0, 5);
|
|
if (Binary.AsciiEqual (header, "BPR02"))
|
|
return new PackedStream<Bpr02Decompressor> (input);
|
|
if (Binary.AsciiEqual (header, "BPR01"))
|
|
return new PackedStream<Bpr01Decompressor> (input);
|
|
return new PrefixStream (header, input);
|
|
}
|
|
|
|
static readonly ScrambleScheme DefaultScheme = new ScrambleScheme {
|
|
ScrambledSize = 14,
|
|
ScrambleMap = new Tuple<byte,byte>[] {
|
|
new Tuple<byte, byte> (7, 11),
|
|
new Tuple<byte, byte> (9, 12)
|
|
}
|
|
};
|
|
|
|
static readonly ScrambleScheme ArScheme = new ScrambleScheme {
|
|
ScrambledSize = 15,
|
|
ScrambleMap = new Tuple<byte,byte>[] {
|
|
new Tuple<byte, byte> (7, 13),
|
|
new Tuple<byte, byte> (9, 14)
|
|
}
|
|
};
|
|
|
|
Dictionary<string, ScrambleScheme> KnownSchemes = new Dictionary<string, ScrambleScheme> {
|
|
{ "AR2.0", ArScheme },
|
|
{ "USG01", ArScheme },
|
|
};
|
|
}
|
|
|
|
internal abstract class BprDecompressor : Decompressor
|
|
{
|
|
readonly byte m_rle_code;
|
|
IBinaryStream m_input;
|
|
|
|
protected BprDecompressor (byte rle_code)
|
|
{
|
|
m_rle_code = rle_code;
|
|
}
|
|
|
|
public override void Initialize (Stream input)
|
|
{
|
|
m_input = new BinaryStream (input, "");
|
|
}
|
|
|
|
protected override IEnumerator<int> Unpack ()
|
|
{
|
|
for (;;)
|
|
{
|
|
int ctl = m_input.ReadByte();
|
|
if (-1 == ctl || 0xFF == ctl)
|
|
yield break;
|
|
int count = m_input.ReadInt32();
|
|
if (m_rle_code == ctl)
|
|
{
|
|
byte b = m_input.ReadUInt8();
|
|
while (count --> 0)
|
|
{
|
|
m_buffer[m_pos++] = b;
|
|
if (0 == --m_length)
|
|
yield return m_pos;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
while (count > 0)
|
|
{
|
|
int chunk = Math.Min (count, m_length);
|
|
int read = m_input.Read (m_buffer, m_pos, chunk);
|
|
count -= chunk;
|
|
m_pos += chunk;
|
|
m_length -= chunk;
|
|
if (0 == m_length)
|
|
yield return m_pos;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool m_disposed = false;
|
|
protected override void Dispose (bool disposing)
|
|
{
|
|
if (!m_disposed)
|
|
{
|
|
if (m_input != null)
|
|
m_input.Dispose();
|
|
m_disposed = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
internal class Bpr02Decompressor : BprDecompressor
|
|
{
|
|
public Bpr02Decompressor () : base (3) { }
|
|
}
|
|
|
|
internal class Bpr01Decompressor : BprDecompressor
|
|
{
|
|
public Bpr01Decompressor () : base (1) { }
|
|
}
|
|
}
|