/*

  This file is part of serialplot.

  serialplot is free software: you can redistribute it and/or modify

  it under the terms of the GNU General Public License as published by

  the Free Software Foundation, either version 3 of the License, or

  (at your option) any later version.

  serialplot is distributed in the hope that it will be useful,

  but WITHOUT ANY WARRANTY; without even the implied warranty of

  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  GNU General Public License for more details.

    if (bytesAvailable > 0 && skipByteRequested)

    {

        _device->read(1);

        skipByteRequested = false;

        bytesAvailable--;

    }

    // skip 1 sample (channel) if requested

    if (bytesAvailable >= (int) sampleSize && skipSampleRequested)

    {

        _device->read(sampleSize);

        skipSampleRequested = false;

    }

    if (bytesAvailable < packageSize) return;

    int numOfPackagesToRead =

        (bytesAvailable - (bytesAvailable % packageSize)) / packageSize;

    if (paused)

    {

        // read and discard data

        _device->read(numOfPackagesToRead*packageSize);

        return;