func: static void create_cel_evals(RoqContext *enc, RoqTempdata *tempData)
  
  {
  
      int n=0, x, y, i;
  
  
  
      tempData->cel_evals = av_malloc(enc->width*enc->height/64 * sizeof(CelEvaluation));
  
  
  
      /* Map to the ROQ quadtree order */
  
      for (y=0; y<enc->height; y+=16)
  
          for (x=0; x<enc->width; x+=16)
  
              for(i=0; i<4; i++) {
  
                  tempData->cel_evals[n  ].sourceX = x + (i&1)*8;
  
                  tempData->cel_evals[n++].sourceY = y + (i&2)*4;
  
              }
  
  }
  