Merge implementation

This commit is contained in:
Crsky 2022-11-29 21:49:48 +08:00
parent 8b4fc93fbe
commit eb584d3887

View File

@ -40,8 +40,8 @@ namespace GameRes.Formats.Kaguya
{
public readonly LinkEncryption Encryption;
public LinkArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, LinkEncryption enc)
: base (arc, impl, dir)
public LinkArchive(ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, LinkEncryption enc)
: base(arc, impl, dir)
{
Encryption = enc;
}
@ -50,24 +50,24 @@ namespace GameRes.Formats.Kaguya
[Export(typeof(ArchiveFormat))]
public class LinkOpener : ArchiveFormat
{
public override string Tag { get { return "ARC/LINK"; } }
public override string Tag { get { return "ARC/LINK"; } }
public override string Description { get { return "KaGuYa script engine resource archive"; } }
public override uint Signature { get { return 0x4B4E494C; } } // 'LINK'
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public override uint Signature { get { return 0x4B4E494C; } } // 'LINK'
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public LinkOpener ()
public LinkOpener()
{
Extensions = new string[] { "arc" };
}
public override ArcFile TryOpen (ArcView file)
public override ArcFile TryOpen(ArcView file)
{
int version = file.View.ReadByte (4) - '0';
int version = file.View.ReadByte(4) - '0';
if (version < 3 || version > 6)
return ReadOldIndex (file);
return ReadOldIndex(file);
using (var reader = LinkReader.Create (file, version))
using (var reader = LinkReader.Create(file, version))
{
var dir = reader.ReadIndex();
if (null == dir)
@ -77,54 +77,54 @@ namespace GameRes.Formats.Kaguya
{
var enc = reader.GetEncryption();
if (enc != null)
return new LinkArchive (file, this, dir, enc);
return new LinkArchive(file, this, dir, enc);
}
return new ArcFile (file, this, dir);
return new ArcFile(file, this, dir);
}
}
public override Stream OpenEntry (ArcFile arc, Entry entry)
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
var lent = entry as LinkEntry;
if (null == lent || (!lent.IsPacked && !lent.IsEncrypted))
{
if (entry.Size > 8)
{
uint unpacked_size = arc.File.View.ReadUInt32 (entry.Offset);
int id = arc.File.View.ReadUInt16 (entry.Offset+5);
uint unpacked_size = arc.File.View.ReadUInt32(entry.Offset);
int id = arc.File.View.ReadUInt16(entry.Offset + 5);
if (id == 0x4D42) // 'BM'
{
using (var input = arc.File.CreateStream (entry.Offset+4, entry.Size-4, entry.Name))
using (var input = arc.File.CreateStream(entry.Offset + 4, entry.Size - 4, entry.Name))
{
var data = Lin2Opener.UnpackLzss (input, unpacked_size);
return new BinMemoryStream (data, entry.Name);
var data = Lin2Opener.UnpackLzss(input, unpacked_size);
return new BinMemoryStream(data, entry.Name);
}
}
}
return base.OpenEntry (arc, entry);
return base.OpenEntry(arc, entry);
}
if (lent.IsEncrypted)
{
var larc = arc as LinkArchive;
if (null == larc)
return base.OpenEntry (arc, entry);
return larc.Encryption.DecryptEntry (larc, lent);
return base.OpenEntry(arc, entry);
return larc.Encryption.DecryptEntry(larc, lent);
}
using (var input = arc.File.CreateStream (entry.Offset, entry.Size))
using (var bmr = new BmrDecoder (input))
using (var input = arc.File.CreateStream(entry.Offset, entry.Size))
using (var bmr = new BmrDecoder(input))
{
bmr.Unpack();
return new BinMemoryStream (bmr.Data, entry.Name);
return new BinMemoryStream(bmr.Data, entry.Name);
}
}
internal ArcFile ReadOldIndex (ArcView file)
internal ArcFile ReadOldIndex(ArcView file)
{
int count = file.View.ReadInt32 (4);
if (!IsSaneCount (count))
int count = file.View.ReadInt32(4);
if (!IsSaneCount(count))
return null;
var dir = new List<Entry> (count);
var dir = new List<Entry>(count);
using (var index = file.CreateStream())
{
index.Position = 8;
@ -132,29 +132,29 @@ namespace GameRes.Formats.Kaguya
for (int i = 0; i < count; ++i)
{
var name = index.ReadCString();
var entry = FormatCatalog.Instance.Create<Entry> (name);
dir.Add (entry);
var entry = FormatCatalog.Instance.Create<Entry>(name);
dir.Add(entry);
}
index.Position = 12 + names_size;
foreach (var entry in dir)
{
entry.Offset = index.ReadUInt32();
entry.Size = index.ReadUInt32();
if (!entry.CheckPlacement (file.MaxOffset))
entry.Size = index.ReadUInt32();
if (!entry.CheckPlacement(file.MaxOffset))
return null;
}
}
return new ArcFile (file, this, dir);
return new ArcFile(file, this, dir);
}
}
internal class LinkReader : IDisposable
{
IBinaryStream m_input;
readonly long m_max_offset;
bool m_has_encrypted;
IBinaryStream m_input;
readonly long m_max_offset;
bool m_has_encrypted;
protected LinkReader (ArcView file)
protected LinkReader(ArcView file)
{
m_input = file.CreateStream();
m_max_offset = file.MaxOffset;
@ -162,31 +162,31 @@ namespace GameRes.Formats.Kaguya
}
public IBinaryStream Input { get { return m_input; } }
public bool HasEncrypted { get { return m_has_encrypted; } }
public bool HasEncrypted { get { return m_has_encrypted; } }
public static LinkReader Create (ArcView file, int version)
public static LinkReader Create(ArcView file, int version)
{
if (version < 4)
return new LinkReader (file);
return new LinkReader(file);
else if (version < 6)
return new Link4Reader (file);
return new Link4Reader(file);
else
return new Link6Reader (file);
return new Link6Reader(file);
}
protected virtual long GetDataOffset ()
protected virtual long GetDataOffset()
{
return 8;
}
protected virtual string ReadName ()
protected virtual string ReadName()
{
int name_length = m_input.ReadUInt8();
Skip (2);
return m_input.ReadCString (name_length);
Skip(2);
return m_input.ReadCString(name_length);
}
public List<Entry> ReadIndex ()
public List<Entry> ReadIndex()
{
m_input.Position = GetDataOffset();
@ -200,19 +200,19 @@ namespace GameRes.Formats.Kaguya
break;
if (size < 0x10)
return null;
int flags = m_input.ReadUInt16 ();
int flags = m_input.ReadUInt16();
bool is_compressed = (flags & 3) != 0;
Skip (7);
Skip(7);
var name = ReadName();
if (string.IsNullOrEmpty (name))
if (string.IsNullOrEmpty(name))
return null;
var entry = FormatCatalog.Instance.Create<LinkEntry> (name);
var entry = FormatCatalog.Instance.Create<LinkEntry>(name);
entry.Offset = m_input.Position;
entry.Size = size - (uint)(entry.Offset - base_offset);
entry.Size = size - (uint)(entry.Offset - base_offset);
if (is_compressed)
{
m_input.Read (header, 0, 4);
if (header.AsciiEqual ("BMR"))
m_input.Read(header, 0, 4);
if (header.AsciiEqual("BMR"))
{
entry.IsPacked = true;
entry.UnpackedSize = m_input.ReadUInt32();
@ -220,40 +220,40 @@ namespace GameRes.Formats.Kaguya
}
entry.IsEncrypted = (flags & 4) != 0;
m_has_encrypted = m_has_encrypted || entry.IsEncrypted;
dir.Add (entry);
dir.Add(entry);
m_input.Position = entry.Offset + entry.Size;
}
return dir;
}
public virtual LinkEncryption GetEncryption ()
public virtual LinkEncryption GetEncryption()
{
var params_dir = VFS.GetDirectoryName (m_input.Name);
var params_dat = VFS.CombinePath (params_dir, "params.dat");
if (!VFS.FileExists (params_dat))
var params_dir = VFS.GetDirectoryName(m_input.Name);
var params_dat = VFS.CombinePath(params_dir, "params.dat");
if (!VFS.FileExists(params_dat))
return null;
using (var input = VFS.OpenBinaryStream (params_dat))
using (var input = VFS.OpenBinaryStream(params_dat))
{
var param = ParamsDeserializer.Create (input);
var param = ParamsDeserializer.Create(input);
return param.GetEncryption();
}
}
protected void Skip (int amount)
protected void Skip(int amount)
{
m_input.Seek (amount, SeekOrigin.Current);
m_input.Seek(amount, SeekOrigin.Current);
}
#region IDisposable Members
public void Dispose ()
public void Dispose()
{
Dispose (true);
GC.SuppressFinalize (this);
Dispose(true);
GC.SuppressFinalize(this);
}
bool _disposed = false;
protected virtual void Dispose (bool disposing)
protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
@ -267,11 +267,11 @@ namespace GameRes.Formats.Kaguya
internal class Link4Reader : LinkReader
{
public Link4Reader (ArcView file) : base (file)
public Link4Reader(ArcView file) : base(file)
{
}
protected override long GetDataOffset ()
protected override long GetDataOffset()
{
return 0xA;
}
@ -279,11 +279,11 @@ namespace GameRes.Formats.Kaguya
internal class Link6Reader : LinkReader
{
public Link6Reader (ArcView file) : base (file)
public Link6Reader(ArcView file) : base(file)
{
}
protected override long GetDataOffset ()
protected override long GetDataOffset()
{
Input.Position = 7;
return 8 + Input.ReadUInt8();
@ -291,29 +291,29 @@ namespace GameRes.Formats.Kaguya
byte[] name_buffer = new byte[0x100];
protected override string ReadName ()
protected override string ReadName()
{
int name_length = Input.ReadUInt16();
if (name_length > 0x400)
throw new InvalidFormatException();
if (name_length > name_buffer.Length)
name_buffer = new byte[name_length];
Input.Read (name_buffer, 0, name_length);
return Encoding.Unicode.GetString (name_buffer, 0, name_length);
Input.Read(name_buffer, 0, name_length);
return Encoding.Unicode.GetString(name_buffer, 0, name_length);
}
}
internal class BmrDecoder : IDisposable
{
byte[] m_output;
MsbBitStream m_input;
int m_final_size;
int m_step;
int m_key;
byte[] m_output;
MsbBitStream m_input;
int m_final_size;
int m_step;
int m_key;
public byte[] Data { get { return m_output; } }
public BmrDecoder (IBinaryStream input)
public BmrDecoder(IBinaryStream input)
{
input.Position = 3;
m_step = input.ReadUInt8();
@ -321,20 +321,20 @@ namespace GameRes.Formats.Kaguya
m_key = input.ReadInt32();
int unpacked_size = input.ReadInt32();
m_output = new byte[unpacked_size];
m_input = new MsbBitStream (input.AsStream, true);
m_input = new MsbBitStream(input.AsStream, true);
}
public void Unpack ()
public void Unpack()
{
m_input.Input.Position = 0x14;
UnpackHuffman();
UndoMoveToFront();
m_output = Decode (m_output, m_key);
m_output = Decode(m_output, m_key);
if (m_step != 0)
m_output = DecompressRLE (m_output);
m_output = DecompressRLE(m_output);
}
byte[] DecompressRLE (byte[] input)
byte[] DecompressRLE(byte[] input)
{
var result = new byte[m_final_size];
int src = 0;
@ -353,7 +353,7 @@ namespace GameRes.Formats.Kaguya
int count = input[src++];
if (0 != (count & 0x80))
count = input[src++] + ((count & 0x7F) << 8) + 128;
while (count --> 0 && dst < result.Length)
while (count-- > 0 && dst < result.Length)
{
result[dst] = v2;
dst += m_step;
@ -372,7 +372,7 @@ namespace GameRes.Formats.Kaguya
}
void UndoMoveToFront ()
void UndoMoveToFront()
{
var dict = new byte[256];
for (int i = 0; i < 256; ++i)
@ -383,13 +383,13 @@ namespace GameRes.Formats.Kaguya
m_output[i] = dict[v];
for (int j = v; j > 0; --j)
{
dict[j] = dict[j-1];
dict[j] = dict[j - 1];
}
dict[0] = m_output[i];
}
}
byte[] Decode (byte[] input, int key)
byte[] Decode(byte[] input, int key)
{
var freq_table = new int[256];
for (int i = 0; i < input.Length; ++i)
@ -398,10 +398,10 @@ namespace GameRes.Formats.Kaguya
}
for (int i = 1; i < 256; ++i)
{
freq_table[i] += freq_table[i-1];
freq_table[i] += freq_table[i - 1];
}
var distrib_table = new int[input.Length];
for (int i = input.Length-1; i >= 0; --i)
for (int i = input.Length - 1; i >= 0; --i)
{
int v = input[i];
int freq = --freq_table[v];
@ -417,10 +417,10 @@ namespace GameRes.Formats.Kaguya
return copy_out;
}
ushort m_token;
ushort[,] m_tree = new ushort[2,256];
ushort m_token;
ushort[,] m_tree = new ushort[2, 256];
void UnpackHuffman ()
void UnpackHuffman()
{
m_token = 256;
ushort root = CreateHuffmanTree();
@ -433,30 +433,30 @@ namespace GameRes.Formats.Kaguya
int bit = m_input.GetNextBit();
if (-1 == bit)
throw new EndOfStreamException();
symbol = m_tree[bit,symbol-256];
symbol = m_tree[bit, symbol - 256];
}
m_output[dst++] = (byte)symbol;
}
}
ushort CreateHuffmanTree ()
ushort CreateHuffmanTree()
{
if (0 != m_input.GetNextBit())
{
ushort v = m_token++;
m_tree[0,v-256] = CreateHuffmanTree();
m_tree[1,v-256] = CreateHuffmanTree();
m_tree[0, v - 256] = CreateHuffmanTree();
m_tree[1, v - 256] = CreateHuffmanTree();
return v;
}
else
{
return (ushort)m_input.GetBits (8);
return (ushort)m_input.GetBits(8);
}
}
#region IDisposable Members
bool _disposed = false;
public void Dispose ()
public void Dispose()
{
if (!_disposed)
{
@ -469,78 +469,78 @@ namespace GameRes.Formats.Kaguya
internal abstract class ParamsDeserializer
{
protected IBinaryStream m_input;
protected string m_title;
protected Version m_version;
protected IBinaryStream m_input;
protected string m_title;
protected Version m_version;
protected ParamsDeserializer (IBinaryStream input, Version version)
protected ParamsDeserializer(IBinaryStream input, Version version)
{
m_input = input;
m_version = version;
}
public static ParamsDeserializer Create (IBinaryStream input)
public static ParamsDeserializer Create(IBinaryStream input)
{
var header = input.ReadHeader (0x11);
if (header.AsciiEqual ("[SCR-PARAMS]v0"))
var header = input.ReadHeader(0x11);
if (header.AsciiEqual("[SCR-PARAMS]v0"))
{
Version version;
if ('.' == header[15])
version = Version.Parse (header.GetCString (13, 4));
version = Version.Parse(header.GetCString(13, 4));
else
version = new Version (header[14] - '0', 0);
version = new Version(header[14] - '0', 0);
if (2 == version.Major)
return new ParamsV2Deserializer (input, version);
return new ParamsV2Deserializer(input, version);
else if (version.Major < 5)
return new ParamsV4Deserializer (input, version);
return new ParamsV4Deserializer(input, version);
else if (5 == version.Major && (version.Minor >= 4 && version.Minor <= 7))
return new ParamsV5Deserializer (input, version);
return new ParamsV5Deserializer(input, version);
}
throw new UnknownEncryptionScheme();
}
public virtual LinkEncryption GetEncryption ()
public virtual LinkEncryption GetEncryption()
{
return new LinkEncryption (GetKey());
return new LinkEncryption(GetKey());
}
public abstract byte[] GetKey ();
public abstract byte[] GetKey();
protected byte[] ReadKey ()
protected byte[] ReadKey()
{
int key_length = m_input.ReadInt32();
return m_input.ReadBytes (key_length);
return m_input.ReadBytes(key_length);
}
protected virtual string ReadString ()
protected virtual string ReadString()
{
int length = m_input.ReadUInt8();
return m_input.ReadCString (length);
return m_input.ReadCString(length);
}
protected virtual void SkipString ()
protected virtual void SkipString()
{
SkipChunk();
}
protected void Skip (int amount)
protected void Skip(int amount)
{
m_input.Seek (amount, SeekOrigin.Current);
m_input.Seek(amount, SeekOrigin.Current);
}
protected void SkipChunk ()
protected void SkipChunk()
{
Skip (m_input.ReadUInt8());
Skip(m_input.ReadUInt8());
}
protected void SkipArray ()
protected void SkipArray()
{
int count = m_input.ReadUInt8();
for (int i = 0; i < count; ++i)
SkipChunk();
}
protected void SkipDict ()
protected void SkipDict()
{
int count = m_input.ReadUInt8();
for (int i = 0; i < count; ++i)
@ -550,7 +550,7 @@ namespace GameRes.Formats.Kaguya
}
}
protected void ReadHeader (int start)
protected void ReadHeader(int start)
{
m_input.Position = start;
SkipChunk();
@ -569,19 +569,19 @@ namespace GameRes.Formats.Kaguya
internal class ParamsV2Deserializer : ParamsDeserializer
{
public ParamsV2Deserializer (IBinaryStream input, Version version) : base (input, version)
public ParamsV2Deserializer(IBinaryStream input, Version version) : base(input, version)
{
}
public override LinkEncryption GetEncryption ()
public override LinkEncryption GetEncryption()
{
var key = GetKey();
return new LinkEncryption (key, m_title != "幼なじみと甘~くエッチに過ごす方法");
return new LinkEncryption(key, m_title != "幼なじみと甘~くエッチに過ごす方法");
}
public override byte[] GetKey ()
public override byte[] GetKey()
{
ReadHeader (0x17);
ReadHeader(0x17);
if ("幼なじみと甘~くエッチに過ごす方法" == m_title)
{
@ -596,7 +596,7 @@ namespace GameRes.Formats.Kaguya
SkipArray();
SkipArray();
m_input.ReadInt32();
return m_input.ReadBytes (240000);
return m_input.ReadBytes(240000);
}
else // 毎日がM!
{
@ -623,15 +623,15 @@ namespace GameRes.Formats.Kaguya
internal class ParamsV4Deserializer : ParamsDeserializer
{
public ParamsV4Deserializer (IBinaryStream input, Version version) : base (input, version)
public ParamsV4Deserializer(IBinaryStream input, Version version) : base(input, version)
{
}
public override byte[] GetKey ()
public override byte[] GetKey()
{
ReadHeader (0x19);
ReadHeader(0x19);
Skip (m_version.Major < 5 ? 12 : 11);
Skip(m_version.Major < 5 ? 12 : 11);
int count = m_input.ReadUInt8();
for (int i = 0; i < count; ++i)
{
@ -654,72 +654,72 @@ namespace GameRes.Formats.Kaguya
internal class ParamsV5Deserializer : ParamsDeserializer
{
public ParamsV5Deserializer (IBinaryStream input, Version version) : base (input, version)
public ParamsV5Deserializer(IBinaryStream input, Version version) : base(input, version)
{
}
public override byte[] GetKey ()
public override byte[] GetKey()
{
ReadHeader (0x1B);
ReadHeader(0x1B);
Skip (m_version.Minor <= 4 ? 15 : 16);
Skip(m_version.Minor <= 4 ? 15 : 16);
for (int i = 0; i < 3; ++i)
{
if (0 != m_input.ReadUInt8())
SkipTree();
}
Skip (m_input.ReadInt32() * 0xC);
Skip(m_input.ReadInt32() * 0xC);
return ReadKey();
}
protected override void SkipString ()
protected override void SkipString()
{
int length = m_input.ReadUInt16();
Skip (length);
Skip(length);
}
byte[] name_buffer = new byte[0x100];
protected override string ReadString ()
protected override string ReadString()
{
int length = m_input.ReadUInt16();
if (length > name_buffer.Length)
name_buffer = new byte[length];
m_input.Read (name_buffer, 0, length);
return Encoding.Unicode.GetString (name_buffer, 0, length);
m_input.Read(name_buffer, 0, length);
return Encoding.Unicode.GetString(name_buffer, 0, length);
}
protected void SkipTree ()
protected void SkipTree()
{
SkipString();
int count = m_input.ReadInt32();
while (count --> 0)
while (count-- > 0)
{
SkipString();
SkipString();
}
count = m_input.ReadInt32();
while (count --> 0)
while (count-- > 0)
SkipTree();
}
}
internal class LinkEncryption
{
byte[] m_key;
byte[] m_key;
Tuple<string, Decryptor>[] m_type_table;
delegate Stream Decryptor (LinkArchive arc, LinkEntry entry);
delegate Stream Decryptor(LinkArchive arc, LinkEntry entry);
static readonly ResourceInstance<AnmOpener> An00 = new ResourceInstance<AnmOpener> ("ANM/KAGUYA");
static readonly ResourceInstance<An10Opener> An10 = new ResourceInstance<An10Opener> ("AN10/KAGUYA");
static readonly ResourceInstance<An20Opener> An20 = new ResourceInstance<An20Opener> ("AN20/KAGUYA");
static readonly ResourceInstance<Pl00Opener> Pl00 = new ResourceInstance<Pl00Opener> ("PLT/KAGUYA");
static readonly ResourceInstance<AnmOpener> An00 = new ResourceInstance<AnmOpener>("ANM/KAGUYA");
static readonly ResourceInstance<An10Opener> An10 = new ResourceInstance<An10Opener>("AN10/KAGUYA");
static readonly ResourceInstance<An20Opener> An20 = new ResourceInstance<An20Opener>("AN20/KAGUYA");
static readonly ResourceInstance<Pl00Opener> Pl00 = new ResourceInstance<Pl00Opener>("PLT/KAGUYA");
public LinkEncryption (byte[] key, bool anm_encrypted = true)
public LinkEncryption(byte[] key, bool anm_encrypted = true)
{
if (null == key || 0 == key.Length)
throw new ArgumentException ("Invalid encryption key");
throw new ArgumentException("Invalid encryption key");
m_key = key;
var table = new List<Tuple<string, Decryptor>>
{
@ -730,52 +730,52 @@ namespace GameRes.Formats.Kaguya
};
if (anm_encrypted)
{
table.Add (new Tuple<string, Decryptor> ("AN00", (a, e) => DecryptAn00 (a, e)));
table.Add (new Tuple<string, Decryptor> ("AN20", (a, e) => DecryptAn20 (a, e)));
table.Add (new Tuple<string, Decryptor> ("AN21", (a, e) => DecryptAn21 (a, e)));
table.Add (new Tuple<string, Decryptor> ("PL00", (a, e) => DecryptPL00 (a, e)));
table.Add (new Tuple<string, Decryptor> ("PL10", (a, e) => DecryptPL10 (a, e)));
table.Add(new Tuple<string, Decryptor>("AN00", (a, e) => DecryptAnm(a, e, An00.Value)));
table.Add(new Tuple<string, Decryptor>("AN10", (a, e) => DecryptAnm(a, e, An10.Value)));
table.Add(new Tuple<string, Decryptor>("AN20", (a, e) => DecryptAnm(a, e, An20.Value)));
table.Add(new Tuple<string, Decryptor>("AN21", (a, e) => DecryptAn21(a, e)));
table.Add(new Tuple<string, Decryptor>("PL00", (a, e) => DecryptAnm(a, e, Pl00.Value)));
table.Add(new Tuple<string, Decryptor>("PL10", (a, e) => DecryptPl10(a, e)));
}
m_type_table = table.ToArray();
}
public Stream DecryptEntry (LinkArchive arc, LinkEntry entry)
public Stream DecryptEntry(LinkArchive arc, LinkEntry entry)
{
var header = arc.File.View.ReadBytes (entry.Offset, 4);
var header = arc.File.View.ReadBytes(entry.Offset, 4);
foreach (var type in m_type_table)
{
if (header.AsciiEqual (type.Item1))
return type.Item2 (arc, entry);
if (header.AsciiEqual(type.Item1))
return type.Item2(arc, entry);
}
return arc.File.CreateStream (entry.Offset, entry.Size);
return arc.File.CreateStream(entry.Offset, entry.Size);
}
Stream DecryptImage (LinkArchive arc, LinkEntry entry, uint data_offset)
Stream DecryptImage(LinkArchive arc, LinkEntry entry, uint data_offset)
{
var header = arc.File.View.ReadBytes (entry.Offset, data_offset);
Stream body = arc.File.CreateStream (entry.Offset+data_offset, entry.Size-data_offset);
body = new ByteStringEncryptedStream (body, m_key);
return new PrefixStream (header, body);
var header = arc.File.View.ReadBytes(entry.Offset, data_offset);
Stream body = arc.File.CreateStream(entry.Offset + data_offset, entry.Size - data_offset);
body = new ByteStringEncryptedStream(body, m_key);
return new PrefixStream(header, body);
}
Stream DecryptAnm (LinkArchive arc, LinkEntry entry, IAnmReader reader)
Stream DecryptAnm(LinkArchive arc, LinkEntry entry, IAnmReader reader)
{
var data = arc.File.View.ReadBytes (entry.Offset, entry.Size);
var input = new BinMemoryStream (data, entry.Name);
var dir = reader.GetFramesList (input);
var data = arc.File.View.ReadBytes(entry.Offset, entry.Size);
var input = new BinMemoryStream(data, entry.Name);
var dir = reader.GetFramesList(input);
if (dir != null)
{
int w = data.ToInt32 (frame_offset);
int h = data.ToInt32 (frame_offset+4);
int size = 4 * w * h;
frame_offset += 8;
DecryptData (data, frame_offset, size);
frame_offset += size + 8;
foreach (AnmEntry frame in dir)
{
DecryptData(data, (int)frame.ImageDataOffset, (int)frame.ImageDataSize);
}
}
return new BinMemoryStream (data, entry.Name);
input.Position = 0;
return input;
}
Stream DecryptAn20(LinkArchive arc, LinkEntry entry)
Stream DecryptAn21(LinkArchive arc, LinkEntry entry)
{
var data = arc.File.View.ReadBytes(entry.Offset, entry.Size);
int count = data.ToUInt16(4);
@ -794,71 +794,16 @@ namespace GameRes.Formats.Kaguya
}
}
count = data.ToUInt16(offset);
offset += 2 + count * 8;
int frame_count = data.ToInt16(offset);
offset += 18;
for(int i = 0; i < frame_count; ++i)
{
offset += 8;
int w = data.ToInt32(offset);
int h = data.ToInt32(offset + 4);
int channels = data.ToInt32(offset + 8);
int frame_size = channels * w * h;
offset += 12;
DecryptData(data, offset, frame_size);
offset += frame_size;
}
return new BinMemoryStream(data, entry.Name);
}
Stream DecryptAn21 (LinkArchive arc, LinkEntry entry)
{
var data = arc.File.View.ReadBytes (entry.Offset, entry.Size);
int count = data.ToUInt16 (4);
int offset = 8;
for (int i = 0; i < count; ++i)
{
switch (data[offset++])
{
case 0: break;
case 1: offset += 8; break;
case 2:
case 3:
case 4:
case 5: offset += 4; break;
default: return new BinMemoryStream (data, entry.Name);
}
}
count = data.ToUInt16 (offset);
offset += 2 + count * 8 + 0x21;
int w = data.ToInt32 (offset);
int h = data.ToInt32 (offset+4);
int channels = data.ToInt32 (offset+8);
int w = data.ToInt32(offset);
int h = data.ToInt32(offset + 4);
int channels = data.ToInt32(offset + 8);
offset += 12;
DecryptData (data, offset, channels * w * h);
return new BinMemoryStream (data, entry.Name);
}
Stream DecryptPL00(LinkArchive arc, LinkEntry entry)
{
var data = arc.File.View.ReadBytes(entry.Offset, entry.Size);
int count = data.ToUInt16(4);
int offset = 22;
for(int i = 0; i < count; ++i)
{
offset += 8;
int w = data.ToInt32(offset);
int h = data.ToInt32(offset + 4);
int channels = data.ToInt32(offset + 8);
int size = channels * w * h;
offset += 12;
DecryptData(data, offset, size);
offset += size;
}
DecryptData(data, offset, channels * w * h);
return new BinMemoryStream(data, entry.Name);
}
Stream DecryptPL10(LinkArchive arc, LinkEntry entry)
Stream DecryptPl10(LinkArchive arc, LinkEntry entry)
{
var data = arc.File.View.ReadBytes(entry.Offset, entry.Size);
int offset = 30;
@ -870,11 +815,11 @@ namespace GameRes.Formats.Kaguya
return new BinMemoryStream(data, entry.Name);
}
void DecryptData (byte[] data, int index, int length)
void DecryptData(byte[] data, int index, int length)
{
while (length > 0)
{
int count = Math.Min (length, m_key.Length);
int count = Math.Min(length, m_key.Length);
for (int i = 0; i < count; ++i)
{
data[index++] ^= m_key[i];
@ -883,4 +828,4 @@ namespace GameRes.Formats.Kaguya
}
}
}
}
}