samples_per_pixel - pixels_offset, left - 1.0);
const double end = min(sample_count / samples_per_pixel -
pixels_offset, right + 1.0);
- const QRectF no_decode_rect(start, y - (h / 2) + 0.5, end - start, h);
+ const QRectF no_decode_rect(start, y - (h / 2) - 0.5, end - start, h);
p.setPen(QPen(Qt::NoPen));
p.setBrush(Qt::white);