internal int ReadFromDevice(ref byte[] buffer, long offset, int index = 0, int count = -1)
{
SeekFSStream(offset);
if (count <= 0)
{
count = buffer.Length;
}
#if DEBUG
Main.SendDebug("Reading 0x{0:X} bytes from the device @ offset 0x{1:X} index in the buf: 0x{2:X}", count, offset, index);
#endif
if (NANDMMCStyle)
{
return(_fileStream.Read(buffer, index, count));
}
uint readcount;
bool res;
if (index != 0)
{
res = NativeWin32.ReadFile(_deviceHandle, buffer, (uint)count, out readcount, IntPtr.Zero);
}
else
{
var tmp = new byte[count];
res = NativeWin32.ReadFile(_deviceHandle, tmp, (uint)count, out readcount, IntPtr.Zero);
if (res)
{
Buffer.BlockCopy(tmp, 0, buffer, index, count);
}
}
if (!res)
{
throw new X360NANDManagerException(X360NANDManagerException.ErrorLevels.Win32Error);
}
return((int)readcount);
}