Stream OpenT5(EmeArchive arc, EmEntry entry)
{
var header = arc.File.View.ReadBytes(entry.Offset, 4);
Decrypt(header, 0, 4, arc.Key);
var input = arc.File.CreateStream(entry.Offset + 4, entry.Size - 4);
return(new PrefixStream(header, input));
}
Stream OpenScript(EmeArchive arc, EmEntry entry)
{
var header = arc.File.View.ReadBytes(entry.Offset, 12);
Decrypt(header, 0, 12, arc.Key);
if (0 == entry.LzssFrameSize)
{
var input = arc.File.CreateStream(entry.Offset + 12, entry.Size);
return(new PrefixStream(header, input));
}
int unpacked_size = LittleEndian.ToInt32(header, 4);
if (0 != unpacked_size)
{
uint packed_size = LittleEndian.ToUInt32(header, 0);
int part1_size = (int)entry.UnpackedSize - unpacked_size;
var data = new byte[entry.UnpackedSize];
using (var input = arc.File.CreateStream(entry.Offset + 12 + packed_size, entry.Size))
using (var lzss = new LzssStream(input))
{
lzss.Config.FrameSize = entry.LzssFrameSize;
lzss.Config.FrameInitPos = entry.LzssInitPos;
lzss.Read(data, 0, part1_size);
}
using (var input = arc.File.CreateStream(entry.Offset + 12, packed_size))
using (var lzss = new LzssStream(input))
{
lzss.Config.FrameSize = entry.LzssFrameSize;
lzss.Config.FrameInitPos = entry.LzssInitPos;
lzss.Read(data, part1_size, unpacked_size);
}
return(new MemoryStream(data));
}
else
{
var input = arc.File.CreateStream(entry.Offset + 12, entry.Size);
var lzss = new LzssStream(input);
lzss.Config.FrameSize = entry.LzssFrameSize;
lzss.Config.FrameInitPos = entry.LzssInitPos;
return(lzss);
}
}
Stream OpenImage(EmeArchive arc, EmEntry entry)
{
var header = new byte[40];
Encoding.ASCII.GetBytes("EMBM", 0, 4, header, 0);
LittleEndian.Pack((ushort)entry.LzssFrameSize, header, 4);
LittleEndian.Pack((ushort)entry.LzssInitPos, header, 6);
arc.File.View.Read(entry.Offset, header, 8, 32);
Decrypt(header, 8, 32, arc.Key);
uint entry_size = entry.Size;
uint colors = LittleEndian.ToUInt16(header, 14);
if (0 != colors && header[0] != 7)
{
entry_size += Math.Max(colors, 3u) * 4;
}
var input = arc.File.CreateStream(entry.Offset + 32, entry_size);
return(new PrefixStream(header, input));
}
Stream OpenT5(EmeArchive arc, EmEntry entry)
{
var header = arc.File.View.ReadBytes (entry.Offset, 4);
Decrypt (header, 0, 4, arc.Key);
var input = arc.File.CreateStream (entry.Offset+4, entry.Size-4);
return new PrefixStream (header, input);
}
Stream OpenScript(EmeArchive arc, EmEntry entry)
{
var header = arc.File.View.ReadBytes (entry.Offset, 12);
Decrypt (header, 0, 12, arc.Key);
if (0 == entry.LzssFrameSize)
{
var input = arc.File.CreateStream (entry.Offset+12, entry.Size);
return new PrefixStream (header, input);
}
int unpacked_size = LittleEndian.ToInt32 (header, 4);
if (0 != unpacked_size)
{
uint packed_size = LittleEndian.ToUInt32 (header, 0);
int part1_size = (int)entry.UnpackedSize - unpacked_size;
var data = new byte[entry.UnpackedSize];
using (var input = arc.File.CreateStream (entry.Offset+12+packed_size, entry.Size))
using (var lzss = new LzssStream (input))
{
lzss.Config.FrameSize = entry.LzssFrameSize;
lzss.Config.FrameInitPos = entry.LzssInitPos;
lzss.Read (data, 0, part1_size);
}
using (var input = arc.File.CreateStream (entry.Offset+12, packed_size))
using (var lzss = new LzssStream (input))
{
lzss.Config.FrameSize = entry.LzssFrameSize;
lzss.Config.FrameInitPos = entry.LzssInitPos;
lzss.Read (data, part1_size, unpacked_size);
}
return new MemoryStream (data);
}
else
{
var input = arc.File.CreateStream (entry.Offset+12, entry.Size);
var lzss = new LzssStream (input);
lzss.Config.FrameSize = entry.LzssFrameSize;
lzss.Config.FrameInitPos = entry.LzssInitPos;
return lzss;
}
}
Stream OpenImage(EmeArchive arc, EmEntry entry)
{
var header = new byte[40];
Encoding.ASCII.GetBytes ("EMBM", 0, 4, header, 0);
LittleEndian.Pack ((ushort)entry.LzssFrameSize, header, 4);
LittleEndian.Pack ((ushort)entry.LzssInitPos, header, 6);
arc.File.View.Read (entry.Offset, header, 8, 32);
Decrypt (header, 8, 32, arc.Key);
uint entry_size = entry.Size;
uint colors = LittleEndian.ToUInt16 (header, 14);
if (0 != colors && header[0] != 7)
entry_size += Math.Max (colors, 3u) * 4;
var input = arc.File.CreateStream (entry.Offset+32, entry_size);
return new PrefixStream (header, input);
}