mirror of
https://github.com/crskycode/GARbro.git
synced 2024-10-23 15:48:16 +08:00
484 lines
16 KiB
C#
484 lines
16 KiB
C#
//! \file ArcMMA.cs
|
||
//! \date 2018 Jun 03
|
||
//! \brief MNP engine resource archive.
|
||
//
|
||
// Copyright (C) 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 System.Windows.Media;
|
||
using GameRes.Utility;
|
||
|
||
// [030425][Chise] Izayoi Renka
|
||
|
||
namespace GameRes.Formats.Mnp
|
||
{
|
||
internal class MmaEntry : PackedEntry
|
||
{
|
||
public uint HeaderSize;
|
||
public uint Flags;
|
||
}
|
||
|
||
[Export(typeof(ArchiveFormat))]
|
||
public class MmaOpener : ArchiveFormat
|
||
{
|
||
public override string Tag { get { return "MMA"; } }
|
||
public override string Description { get { return "MNP engine resource archive"; } }
|
||
public override uint Signature { get { return 0x21435241; } } // 'ARC!'
|
||
public override bool IsHierarchic { get { return false; } }
|
||
public override bool CanWrite { get { return false; } }
|
||
|
||
public override ArcFile TryOpen (ArcView file)
|
||
{
|
||
int version = file.View.ReadInt32 (0xC);
|
||
if (version != 1)
|
||
return null;
|
||
int count = file.View.ReadInt32 (0x10);
|
||
if (!IsSaneCount (count))
|
||
return null;
|
||
uint index_offset = file.View.ReadUInt32 (4);
|
||
if (index_offset >= file.MaxOffset)
|
||
return null;
|
||
var base_name = Path.GetFileNameWithoutExtension (file.Name);
|
||
var dir = new List<Entry> (count);
|
||
for (int i = 0; i < count; ++i)
|
||
{
|
||
var entry = new MmaEntry {
|
||
Name = string.Format ("{0}#{1:D5}", base_name, i),
|
||
Offset = file.View.ReadUInt32 (index_offset),
|
||
UnpackedSize = file.View.ReadUInt32 (index_offset+4),
|
||
Size = file.View.ReadUInt32 (index_offset+8),
|
||
HeaderSize = file.View.ReadUInt32 (index_offset+0x0C),
|
||
Flags = file.View.ReadUInt32 (index_offset+0x10),
|
||
};
|
||
if (!entry.CheckPlacement (file.MaxOffset))
|
||
return null;
|
||
switch (entry.Flags & 0x38)
|
||
{
|
||
case 8:
|
||
case 0x10:
|
||
case 0x18:
|
||
case 0x38:
|
||
entry.Type = "image";
|
||
break;
|
||
default:
|
||
if (0x2D == entry.Flags)
|
||
entry.Type = "audio";
|
||
break;
|
||
}
|
||
dir.Add (entry);
|
||
index_offset += 0x14;
|
||
}
|
||
var list_entry = dir[0] as MmaEntry;
|
||
if (0x2F == list_entry.Flags)
|
||
{
|
||
ReadMmaList (file, dir, list_entry);
|
||
}
|
||
return new ArcFile (file, this, dir);
|
||
}
|
||
|
||
void ReadMmaList (ArcView file, List<Entry> dir, MmaEntry index_entry)
|
||
{
|
||
using (var packed = file.CreateStream (index_entry.Offset, index_entry.Size))
|
||
using (var unpacked = UnpackEntry (packed, index_entry))
|
||
using (var index = new StreamReader (unpacked, Encodings.cp932))
|
||
{
|
||
for (int i = 0; i < dir.Count; ++i)
|
||
{
|
||
// int type = index.Read();
|
||
// if (-1 == type)
|
||
// break;
|
||
var name = index.ReadLine();
|
||
if (null == name)
|
||
break;
|
||
dir[i].Name = Path.GetFileName (name);
|
||
}
|
||
}
|
||
}
|
||
|
||
public override Stream OpenEntry (ArcFile arc, Entry entry)
|
||
{
|
||
var ment = entry as MmaEntry;
|
||
if (null == ment)
|
||
return base.OpenEntry (arc, entry);
|
||
var input = arc.File.CreateStream (entry.Offset, entry.Size);
|
||
return UnpackEntry (input, ment);
|
||
}
|
||
|
||
Stream UnpackEntry (IBinaryStream input, MmaEntry entry)
|
||
{
|
||
uint flags = entry.Flags & 6;
|
||
if (6 == flags && 0 == entry.HeaderSize)
|
||
{
|
||
using (input)
|
||
{
|
||
var data = new byte[entry.UnpackedSize];
|
||
UnpackLz (input, data, 0);
|
||
return new BinMemoryStream (data, entry.Name);
|
||
}
|
||
}
|
||
else if (4 == flags)
|
||
{
|
||
using (input)
|
||
{
|
||
input.Position = (int)entry.HeaderSize;
|
||
var data = input.ReadBytes ((int)entry.UnpackedSize);
|
||
Decrypt (data, 0, data.Length);
|
||
return new BinMemoryStream (data, entry.Name);
|
||
}
|
||
}
|
||
return input.AsStream;
|
||
}
|
||
|
||
public override IImageDecoder OpenImage (ArcFile arc, Entry entry)
|
||
{
|
||
var ment = (MmaEntry)entry;
|
||
IBinaryStream input;
|
||
switch (ment.Flags & 0x38)
|
||
{
|
||
case 8:
|
||
input = arc.File.CreateStream (entry.Offset, entry.Size);
|
||
return new MmeImageDecoder (input, ment);
|
||
|
||
case 0x10:
|
||
case 0x18:
|
||
input = arc.File.CreateStream (entry.Offset, entry.Size);
|
||
return new MmeMaskDecoder (input, ment);
|
||
|
||
default:
|
||
return base.OpenImage (arc, entry);
|
||
}
|
||
}
|
||
|
||
internal static void Decrypt (byte[] data, int offset, int length)
|
||
{
|
||
int key_mask = DefaultKey.Length - 1;
|
||
for (int i = 0; i < length; ++i)
|
||
{
|
||
byte x = (byte)(data[offset+i] ^ DefaultKey[i & key_mask]);
|
||
data[offset+i] = Binary.RotByteR (x, 3);
|
||
}
|
||
}
|
||
|
||
internal static void UnpackLz (IBinaryStream input, byte[] output, int dst = 0)
|
||
{
|
||
byte id = input.ReadUInt8();
|
||
if (id != 0xC0)
|
||
{
|
||
if ((id ^ DefaultKey[0]) == 0xC0)
|
||
{
|
||
Stream decrypted = input.AsStream;
|
||
long start_pos = input.Position;
|
||
if (start_pos != 1)
|
||
decrypted = new StreamRegion (decrypted, start_pos - 1);
|
||
decrypted = new ByteStringEncryptedStream (decrypted, DefaultKey);
|
||
input = new BinaryStream (decrypted, input.Name);
|
||
input.Position = 1;
|
||
}
|
||
else
|
||
{
|
||
if (id != 0)
|
||
throw new InvalidFormatException();
|
||
input.Read (output, 0, output.Length);
|
||
return;
|
||
}
|
||
}
|
||
int ctl = 0;
|
||
int mask = 0;
|
||
while (dst < output.Length)
|
||
{
|
||
if (0 == mask)
|
||
{
|
||
ctl = input.ReadByte();
|
||
if (-1 == ctl)
|
||
break;
|
||
mask = 0x80;
|
||
}
|
||
if ((ctl & mask) != 0)
|
||
{
|
||
int offset = input.ReadUInt8() << 8;
|
||
offset |= input.ReadUInt8();
|
||
int count = (offset & 0x1F) + 3;
|
||
offset = (offset >> 5) + 1;
|
||
Binary.CopyOverlapped (output, dst - offset, dst, count);
|
||
dst += count;
|
||
}
|
||
else
|
||
{
|
||
output[dst++] = Binary.RotByteL (input.ReadUInt8(), 5);
|
||
}
|
||
mask >>= 1;
|
||
}
|
||
}
|
||
|
||
// Izayoi Renka
|
||
// static readonly string DefaultKey = "ghTuEiAdjSwElTek";
|
||
|
||
// Nanairo Kanata
|
||
// cp932.GetBytes ("w,ozqO%tl(z´1ーw｀y)iEkyzh-if)9")
|
||
static readonly byte[] DefaultKey = {
|
||
0x77, 0x2C, 0x6F, 0x7A, 0x71, 0x4F, 0x25, 0x74, 0x6C, 0x28, 0x7A, 0x81, 0x4C, 0x31, 0x81, 0x5B,
|
||
0x77, 0x81, 0x4D, 0x79, 0x29, 0x69, 0x45, 0x6B, 0x79, 0x7A, 0x68, 0x2D, 0x69, 0x66, 0x29, 0x39,
|
||
};
|
||
}
|
||
|
||
internal class MmeBaseDecoder : BinaryImageDecoder
|
||
{
|
||
protected byte[] m_output;
|
||
protected int m_header_size;
|
||
protected uint m_flags;
|
||
protected int m_stride;
|
||
|
||
public PixelFormat Format { get; protected set; }
|
||
|
||
protected MmeBaseDecoder (IBinaryStream input, MmaEntry entry) : base (input)
|
||
{
|
||
m_header_size = (int)entry.HeaderSize;
|
||
m_flags = entry.Flags;
|
||
}
|
||
|
||
protected override ImageData GetImageData ()
|
||
{
|
||
m_input.Position = m_header_size;
|
||
switch (m_flags & 6)
|
||
{
|
||
case 2:
|
||
m_input.Read (m_output, 0, m_output.Length);
|
||
break;
|
||
case 4:
|
||
Decrypt();
|
||
break;
|
||
case 6:
|
||
MmaOpener.UnpackLz (m_input, m_output, 0);
|
||
break;
|
||
default:
|
||
throw new InvalidFormatException();
|
||
}
|
||
return ImageData.Create (Info, Format, null, m_output, m_stride);
|
||
}
|
||
|
||
internal void Decrypt ()
|
||
{
|
||
int length = m_input.Read (m_output, 0, m_output.Length);
|
||
MmaOpener.Decrypt (m_output, 0, length);
|
||
}
|
||
}
|
||
|
||
internal class MmeImageDecoder : MmeBaseDecoder
|
||
{
|
||
int m_width;
|
||
int m_height;
|
||
int m_bpp;
|
||
|
||
public MmeImageDecoder (IBinaryStream input, MmaEntry entry) : base (input, entry)
|
||
{
|
||
m_width = m_input.ReadInt32();
|
||
m_height = m_input.ReadInt32();
|
||
m_bpp = m_input.ReadInt32();
|
||
m_stride = m_input.ReadInt32();
|
||
Info = new ImageMetaData {
|
||
Width = (uint)m_width,
|
||
Height = (uint)m_height,
|
||
BPP = m_bpp,
|
||
};
|
||
m_output = new byte[entry.UnpackedSize];
|
||
if (24 == m_bpp)
|
||
Format = PixelFormats.Bgr24;
|
||
else
|
||
Format = PixelFormats.Bgr32;
|
||
}
|
||
}
|
||
|
||
internal class MmeMaskDecoder : MmeBaseDecoder
|
||
{
|
||
int m_width;
|
||
int m_height;
|
||
|
||
public MmeMaskDecoder (IBinaryStream input, MmaEntry entry) : base (input, entry)
|
||
{
|
||
m_width = m_input.ReadInt32();
|
||
m_height = m_input.ReadInt32();
|
||
m_stride = m_width;
|
||
Info = new ImageMetaData {
|
||
Width = (uint)m_width,
|
||
Height = (uint)m_height,
|
||
BPP = 8,
|
||
};
|
||
m_output = new byte[entry.UnpackedSize];
|
||
Format = PixelFormats.Gray8;
|
||
}
|
||
}
|
||
|
||
public enum MnpMethod : int
|
||
{
|
||
Scheme03,
|
||
Scheme06,
|
||
}
|
||
|
||
[Serializable]
|
||
public class MmaScheme
|
||
{
|
||
public byte[] Key;
|
||
public MnpMethod Method;
|
||
}
|
||
|
||
internal interface IMnpDecoder
|
||
{
|
||
string ReadMmaListLine (StreamReader input);
|
||
Stream UnpackEntry (IBinaryStream input, MmaEntry entry);
|
||
}
|
||
|
||
internal abstract class MnpDecoder : IMnpDecoder
|
||
{
|
||
protected byte[] Key;
|
||
|
||
protected MnpDecoder (byte[] key)
|
||
{
|
||
Key = key;
|
||
}
|
||
|
||
public static IMnpDecoder Create (MmaScheme scheme)
|
||
{
|
||
switch (scheme.Method)
|
||
{
|
||
case MnpMethod.Scheme03: return new MnpDecoder03 (scheme.Key);
|
||
case MnpMethod.Scheme06: return new MnpDecoder06 (scheme.Key);
|
||
default: throw new UnknownEncryptionScheme();
|
||
}
|
||
}
|
||
|
||
public abstract string ReadMmaListLine (StreamReader input);
|
||
|
||
public Stream UnpackEntry (IBinaryStream input, MmaEntry entry)
|
||
{
|
||
uint flags = entry.Flags & 6;
|
||
if (6 == flags && 0 == entry.HeaderSize)
|
||
{
|
||
using (input)
|
||
{
|
||
var data = new byte[entry.UnpackedSize];
|
||
Unpack (input, data, 0);
|
||
return new BinMemoryStream (data, entry.Name);
|
||
}
|
||
}
|
||
else if (4 == flags)
|
||
{
|
||
using (input)
|
||
{
|
||
input.Position = (int)entry.HeaderSize;
|
||
var data = input.ReadBytes ((int)entry.UnpackedSize);
|
||
Decrypt (data, 0, data.Length);
|
||
return new BinMemoryStream (data, entry.Name);
|
||
}
|
||
}
|
||
return input.AsStream;
|
||
}
|
||
|
||
protected void Unpack (IBinaryStream input, byte[] output, int dst = 0)
|
||
{
|
||
byte id = input.ReadUInt8();
|
||
if (id != 0xC0)
|
||
{
|
||
if (id != 0)
|
||
throw new InvalidFormatException();
|
||
input.Read (output, 0, output.Length);
|
||
return;
|
||
}
|
||
int ctl = 0;
|
||
int mask = 0;
|
||
while (dst < output.Length)
|
||
{
|
||
if (0 == mask)
|
||
{
|
||
ctl = input.ReadByte();
|
||
if (-1 == ctl)
|
||
break;
|
||
mask = 0x80;
|
||
}
|
||
if ((ctl & mask) != 0)
|
||
{
|
||
int offset = input.ReadUInt8() << 8;
|
||
offset |= input.ReadUInt8();
|
||
int count = (offset & 0x1F) + 3;
|
||
offset = (offset >> 5) + 1;
|
||
Binary.CopyOverlapped (output, dst - offset, dst, count);
|
||
dst += count;
|
||
}
|
||
else
|
||
{
|
||
output[dst++] = Binary.RotByteL (input.ReadUInt8(), 5);
|
||
}
|
||
mask >>= 1;
|
||
}
|
||
}
|
||
|
||
protected abstract void UnpackLz (IBinaryStream input, byte[] output);
|
||
|
||
internal void Decrypt (byte[] data, int offset, int length)
|
||
{
|
||
int key_mask = Key.Length - 1;
|
||
for (int i = 0; i < length; ++i)
|
||
{
|
||
byte x = (byte)(data[offset+i] ^ Key[i & key_mask]);
|
||
data[offset+i] = Binary.RotByteR (x, 3);
|
||
}
|
||
}
|
||
}
|
||
|
||
internal class MnpDecoder03 : MnpDecoder
|
||
{
|
||
public MnpDecoder03 (byte[] key) : base (key)
|
||
{
|
||
}
|
||
|
||
public override string ReadMmaListLine (StreamReader input)
|
||
{
|
||
int type = input.Read();
|
||
if (-1 == type)
|
||
return null;
|
||
return input.ReadLine();
|
||
}
|
||
|
||
protected override void UnpackLz (IBinaryStream input, byte[] output)
|
||
{
|
||
}
|
||
}
|
||
|
||
internal class MnpDecoder06 : MnpDecoder
|
||
{
|
||
public MnpDecoder06 (byte[] key) : base (key)
|
||
{
|
||
}
|
||
|
||
public override string ReadMmaListLine (StreamReader input)
|
||
{
|
||
return input.ReadLine();
|
||
}
|
||
|
||
protected override void UnpackLz (IBinaryStream input, byte[] output)
|
||
{
|
||
}
|
||
}
|
||
}
|