private IEnumerable <IArchiveFileInfo> ReadDirectories(BinaryReaderX br, IsoDirEntry directory, string currentPath = "")
{
var directoryOffset = directory.body.lbaExtent.Value * SectorSize_;
var internalOffset = 0x60; // Skip self entry and parent entry directly
while (br.PeekByte(directoryOffset + internalOffset) != 0)
{
br.BaseStream.Position = directoryOffset + internalOffset;
var entry = br.ReadType <IsoDirEntry>();
br.BaseStream.Position += 0xE;
internalOffset = (int)(br.BaseStream.Position - directoryOffset);
// Continue reading if the entry points to the current one
if (entry.body.lbaExtent.Value == directory.body.lbaExtent.Value)
{
continue;
}
// Read all sub directories and files of this directory
if (entry.IsDirectory)
{
foreach (var afi in ReadDirectories(br, entry, Path.Combine(currentPath, entry.body.fileName)))
{
yield return(afi);
}
continue;
}
// Otherwise return file
var subStream = new SubStream(br.BaseStream, entry.body.lbaExtent.Value * SectorSize_, entry.body.sizeExtent.Value);
yield return(new Ps2DiscArchiveFileInfo(subStream, Path.Combine(currentPath, entry.body.fileName), entry));
}
}
private string GetString(byte[] input)
{
using (var br = new BinaryReaderX(new MemoryStream(input)))
{
string res = "";
switch (usedEncoding)
{
case Enc.SJIS:
while (br.BaseStream.Position < br.BaseStream.Length)
{
var peek = br.PeekByte();
if (peek == 0x1a)
{
br.BaseStream.Position++;
var size = br.ReadByte();
res += "{";
res += br.ReadByte() + ",";
for (int i = 0; i < size - 3; i++)
{
res += br.ReadByte() + ((i + 1 == size - 3) ? "" : ",");
}
res += "}";
}
else
{
if (peek == 0x00)
{
br.ReadByte();
break;
}
else if (peek < 0x80)
{
res += Encoding.GetEncoding("SJIS").GetString(new[] { br.ReadByte() });
}
else
{
res += Encoding.GetEncoding("SJIS").GetString(br.ReadBytes(2));
}
}
}
break;
case Enc.UTF16:
while (br.BaseStream.Position < br.BaseStream.Length)
{
var peek = br.ReadInt16();
br.BaseStream.Position -= 2;
if (peek == 0x1a)
{
br.BaseStream.Position += 2;
var size = br.ReadByte();
res += "{";
res += br.ReadByte() + ",";
for (int i = 0; i < size - 4; i += 2)
{
res += br.ReadUInt16() + ((i + 2 == size - 4) ? "" : ",");
}
res += "}";
}
else
if (peek == 0x00)
{
br.ReadByte();
break;
}
else
{
res += Encoding.GetEncoding("UTF-16").GetString(br.ReadBytes(2));
}
}
break;
default:
return(string.Empty);
}
return(res);
}
}
// TODO: Not all games use a standard encoding scheme. Example: Doubutsu no Mori e+.
// TODO: It also uses custom binary data characters (0x7F for ControlCodes & 0x80 for MessageTags.)
// TODO: Should this be supported somehow? I'm pretty certain those formats are unique to those game(s).
// In the meantime I'll be disabling command parsing all together until a solution is determined.
// It's also worth mentioning that not all BMG files have a 0x00 string-end character.
// How should that be handled?
private string GetString(byte[] input)
{
using (var br = new BinaryReaderX(new MemoryStream(input)))
{
string res = "";
switch (header.encoding)
{
case BmgEncoding.ASCII:
while (br.BaseStream.Position < br.BaseStream.Length)
{
/*var peek = br.PeekByte();
* if (peek == 0x1a)
* {
* br.BaseStream.Position++;
* var size = br.ReadByte();
* res += "{";
* res += br.ReadByte() + ",";
* for (int i = 0; i < size - 3; i++)
* res += br.ReadByte() + ((i + 1 == size - 3) ? "" : ",");
* res += "}";
* }
* else
* {
* if (peek == 0x00)
* {
* br.ReadByte();
* break;
* }
*
* res += encoding.GetString(new[] { br.ReadByte() });
* }*/
res += encoding.GetString(new[] { br.ReadByte() });
}
break;
case BmgEncoding.ShiftJIS:
while (br.BaseStream.Position < br.BaseStream.Length)
{
var peek = br.PeekByte();
/*if (peek == 0x1a)
* {
* br.BaseStream.Position++;
* var size = br.ReadByte();
* res += "{";
* res += br.ReadByte() + ",";
* for (int i = 0; i < size - 3; i++)
* res += br.ReadByte() + ((i + 1 == size - 3) ? "" : ",");
* res += "}";
* }
* else
* {
* if (peek == 0x00)
* {
* br.ReadByte();
* break;
* }
*
* if (peek < 0x80)
* res += encoding.GetString(new[] { br.ReadByte() });
* else
* res += encoding.GetString(br.ReadBytes(2));
* }*/
if (peek < 0x80)
{
res += encoding.GetString(new[] { br.ReadByte() });
}
else
{
res += encoding.GetString(br.ReadBytes(2));
}
}
break;
case BmgEncoding.UTF16:
while (br.BaseStream.Position < br.BaseStream.Length)
{
/*var peek = br.ReadInt16();
* br.BaseStream.Position -= 2;
* if (peek == 0x1a)
* {
* br.BaseStream.Position += 2;
* var size = br.ReadByte();
* res += "{";
* res += br.ReadByte() + ",";
* for (int i = 0; i < size - 4; i += 2)
* res += br.ReadUInt16() + ((i + 2 == size - 4) ? "" : ",");
* res += "}";
* }
* else
* if (peek == 0x00)
* {
* br.ReadByte();
* break;
* }
* else
* res += encoding.GetString(br.ReadBytes(2));*/
res += encoding.GetString(br.ReadBytes(2));
}
break;
default:
return(string.Empty);
}
return(res.Replace("\0", ""));
}
}