docs: public void setSourceSubsampling(int pXSub, int pYSub) {
          // Re-fetch everything, if subsampling changed
          if (xSub != pXSub || ySub != pYSub) {
              dispose();
          }
  
          if (pXSub > 1) {
              xSub = pXSub;
          }
          if (pYSub > 1) {
              ySub = pYSub;
          }
      }