void UnpackV200()
{
m_output = new byte[m_pixels * 3];
var reader = new MrgDecoder(m_input, 0, (uint)m_pixels);
do
{
reader.ResetKey(m_key);
try
{
for (int i = 0; i < 3; ++i)
{
reader.Unpack();
var plane = reader.Data;
int src = 0;
for (int j = ChannelOrder[i]; j < m_output.Length; j += 3)
{
m_output[j] = plane[src++];
}
}
// Trace.WriteLine (string.Format ("Found matching key {0:X2}", key), "[MCG]");
}
catch (InvalidFormatException)
{
m_key++;
continue;
}
Transform();
Properties.Settings.Default.MCGLastKey = m_key;
return;
}while (m_key != Properties.Settings.Default.MCGLastKey);
throw new UnknownEncryptionScheme();
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
var mrg_entry = entry as Mrg2Entry;
if (null == mrg_entry || mrg_entry.Method > 3)
{
return(arc.File.CreateStream(entry.Offset, entry.Size));
}
IBinaryStream input;
if (0 == mrg_entry.Method)
{
var data = arc.File.View.ReadBytes(entry.Offset, entry.Size);
Decrypt(data, 0, data.Length, mrg_entry.Key, mrg_entry.ArcKey);
input = new BinMemoryStream(data, entry.Name);
}
else if (mrg_entry.Method >= 2)
{
var data = arc.File.View.ReadBytes(entry.Offset, entry.Size);
var reader = new MrgDecoder(data);
reader.Unpack();
input = new BinMemoryStream(reader.Data, entry.Name);
}
else
{
input = arc.File.CreateStream(entry.Offset, entry.Size);
}
if (1 == mrg_entry.Method || 3 == mrg_entry.Method)
{
using (input)
using (var reader = new MrgLzssReader(input, (int)input.Length, (int)mrg_entry.UnpackedSize))
{
reader.Unpack();
return(new BinMemoryStream(reader.Data, entry.Name));
}
}
return(input.AsStream);
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
var packed_entry = entry as MrgEntry;
if (null == packed_entry || !packed_entry.IsPacked || packed_entry.Method > 3)
{
return(arc.File.CreateStream(entry.Offset, entry.Size));
}
Stream input;
if (packed_entry.Method >= 2)
{
if (entry.Size < 0x108)
{
return(arc.File.CreateStream(entry.Offset, entry.Size));
}
var data = new byte[entry.Size];
arc.File.View.Read(entry.Offset, data, 0, entry.Size);
var reader = new MrgDecoder(data);
reader.Unpack();
input = new MemoryStream(reader.Data);
}
else
{
input = arc.File.CreateStream(entry.Offset, entry.Size);
}
if (packed_entry.Method < 3)
{
using (input)
using (var reader = new MrgLzssReader(input, (int)input.Length, (int)packed_entry.UnpackedSize))
{
reader.Unpack();
return(new MemoryStream(reader.Data));
}
}
return(input);
}
public override Stream OpenEntry(ArcFile arc, Entry entry)
{
var packed_entry = entry as MrgEntry;
if (null == packed_entry || !packed_entry.IsPacked || packed_entry.Method > 3)
return arc.File.CreateStream (entry.Offset, entry.Size);
Stream input;
if (packed_entry.Method >= 2)
{
if (entry.Size < 0x108)
return arc.File.CreateStream (entry.Offset, entry.Size);
var data = new byte[entry.Size];
arc.File.View.Read (entry.Offset, data, 0, entry.Size);
var reader = new MrgDecoder (data);
reader.Unpack();
input = new MemoryStream (reader.Data);
}
else
input = arc.File.CreateStream (entry.Offset, entry.Size);
if (packed_entry.Method < 3)
{
using (input)
using (var reader = new MrgLzssReader (input, (int)input.Length, (int)packed_entry.UnpackedSize))
{
reader.Unpack();
return new MemoryStream (reader.Data);
}
}
return input;
}
