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);
offset += 12;
DecryptData(data, offset, channels * w * h);
return(new BinMemoryStream(data, entry.Name));
}
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));
}
Stream DecryptPl10(LinkArchive arc, LinkEntry entry)
{
var data = arc.File.View.ReadBytes(entry.Offset, entry.Size);
int offset = 30;
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));
}
public Stream DecryptEntry(LinkArchive arc, LinkEntry entry)
{
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));
}
}
return(arc.File.CreateStream(entry.Offset, entry.Size));
}
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);
if (dir != null)
{
foreach (AnmEntry frame in dir)
{
DecryptData(data, (int)frame.ImageDataOffset, (int)frame.ImageDataSize);
}
}
input.Position = 0;
return(input);
}
Stream DecryptAn00(LinkArchive arc, LinkEntry entry)
{
var data = arc.File.View.ReadBytes(entry.Offset, entry.Size);
int frame_offset = 0x18 + data.ToUInt16(0x14) * 4;
int count = data.ToUInt16(frame_offset);
frame_offset += 10;
for (int i = 0; i < count; ++i)
{
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;
}
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;
}
return(new BinMemoryStream(data, entry.Name));
}