docs: public void setDimensions(int pWidth, int pHeight) {
          destWidth = (pWidth + xSub - 1) / xSub;
          destHeight = (pHeight + ySub - 1) / ySub;
  
          //System.out.println("Subsampling: " + xSub + "," + ySub + "-> " + destWidth + ", " + destHeight);
          super.setDimensions(pWidth, pHeight);
      }