private int GetDataChunk(short[] data)
{
int freq = _rate;
int i, towrite = DataChunckSize;
var pos = 0;
while (towrite > 0)
{
while (minicnt < 0)
{
minicnt += freq;
var playing = _player.Update();
if (!playing)
{
return(-1);
}
}
i = Math.Min(towrite, (int)(minicnt / _player.RefreshRate + 4) & ~3);
_player.Opl.ReadBuffer(data, pos, i);
pos += i;
towrite -= i;
minicnt -= (int)(_player.RefreshRate * i);
}
return(DataChunckSize);
}