public IORet Seek(long pos, SeekOrigin origin)
{
switch (origin)
{
case SeekOrigin.Begin:
discPosition = pos;
break;
case SeekOrigin.Current:
discPosition += pos;
break;
case SeekOrigin.End:
discPosition = disc.size + pos;
break;
}
disc.GetLBAPosAndSectorOffset(discPosition, out deviceLBA, out offset, out wbfsSectorLBA);
return(context.Seek(deviceLBA << device.hdSectorSize_s));
}
public IORet Seek(long pos, SeekOrigin origin)
{
switch (origin)
{
case SeekOrigin.Begin:
discPosition = pos;
break;
case SeekOrigin.Current:
discPosition += pos;
break;
case SeekOrigin.End:
discPosition = context.Length + pos;
break;
}
deviceLBA = discPosition / sectorSize; //Divisão de inteiros
offset = (uint)(discPosition % sectorSize);
return(context.Seek(deviceLBA * sectorSize));
}
//--------------------------- Retorna as informações da iso de Wii
public static Int32 SetIsoInformation(String file, string code, string name)
{
IIOContext context = IOManager.CreateIOContext("ISWIIISO", file, FileAccess.ReadWrite, FileShare.Read,
0, FileMode.Open, EFileAttributes.None);
if (context.Result != (int)IORet.RET_IO_OK)
{
//Loga erro
return(context.Result);
}
else
{
int r = (int)context.Lock();
if (r != (int)IORet.RET_IO_OK)
{
//Loga erro
context.Close();
return(r);
}
Byte[] header = new Byte[256];
if (context.Read(header, 256) != IORet.RET_IO_OK)
{
//Loga erro
r = context.Result;
context.Unlock();
context.Close();
return(r);
}
uint magic = _be32(header, 24);
if (magic != 0x5D1C9EA3)
{
context.Unlock();
context.Close();
header = null;
return((int)WBFSRet.RET_WBFS_NOTAWIIDISC);
}
header = null;
//
if (code.Length != 0)
{
if (code.Length != WBFSDevice.IsoCodeLen)
{
if (code.Length < WBFSDevice.IsoCodeLen)
{
while (code.Length < WBFSDevice.IsoCodeLen)
{
code += '0';
}
}
else
{
code = code.Substring(0, WBFSDevice.IsoCodeLen); //Eu preciso fazer isso para o GetDiscByCode()
}
}
context.Seek(WBFSDevice.IsoCodePos);
context.Write(code, false);
}
if (name.Length != 0)
{
if (name.Length > WBFSDevice.IsoNameLen)
{
name = name.Substring(0, WBFSDevice.IsoNameLen);
}
context.Seek(WBFSDevice.IsoNamePos);
context.Write(name, false);
for (int i = name.Length; i < WBFSDevice.IsoNameLen; i++)
{
context.Write((byte)0);
}
}
//
context.Unlock();
context.Close();
return(0);
}
}
