int ReadDataFromDataStream(IntPtr buffer, int needRead)
{
OpenALDataStreamSound currentDataStreamSound = (OpenALDataStreamSound)currentSound;
if (tempDataStreamReadArray.Length < needRead)
{
tempDataStreamReadArray = new byte[needRead];
}
int readed = currentDataStreamSound.dataReadCallback(tempDataStreamReadArray, 0, needRead);
if (readed != 0)
{
Marshal.Copy(tempDataStreamReadArray, 0, buffer, readed);
}
if (readed < 16)
{
readed = Math.Min(needRead, 16);
NativeUtility.ZeroMemory(buffer, readed);
}
return(readed);
}