2219          png_uint_32 sumhi, sumlo;  in png_write_find_filter()  local
2222          sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK; /* Gives us some footroom */  in png_write_find_filter()
2231                sumhi = (sumhi * png_ptr->filter_weights[j]) >>  in png_write_find_filter()
2242          sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_NONE]) >>  in png_write_find_filter()
2245          if (sumhi > PNG_HIMASK)  in png_write_find_filter()
2248             sum = (sumhi << PNG_HISHIFT) + sumlo;  in png_write_find_filter()
2337          png_uint_32 sumhi, sumlo;  in png_write_find_filter()  local
2339          sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;  in png_write_find_filter()
2347                sumhi = (sumhi * png_ptr->inv_filter_weights[j]) >>  in png_write_find_filter()
2354          sumhi = (sumhi * png_ptr->inv_filter_costs[PNG_FILTER_VALUE_SUB]) >>  in png_write_find_filter()
2357          if (sumhi > PNG_HIMASK)  in png_write_find_filter()
2360             sum = (sumhi << PNG_HISHIFT) + sumlo;  in png_write_find_filter()
2440          png_uint_32 sumhi, sumlo;  in png_write_find_filter()  local
2442          sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;  in png_write_find_filter()
2450                sumhi = (sumhi * png_ptr->filter_weights[j]) >>  in png_write_find_filter()
2457          sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_UP]) >>  in png_write_find_filter()
2460          if (sumhi > PNG_HIMASK)  in png_write_find_filter()
2463             sum = (sumhi << PNG_HISHIFT) + sumlo;  in png_write_find_filter()
2552          png_uint_32 sumhi, sumlo;  in png_write_find_filter()  local
2554          sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;  in png_write_find_filter()
2562                sumhi = (sumhi * png_ptr->filter_weights[j]) >>  in png_write_find_filter()
2569          sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_AVG]) >>  in png_write_find_filter()
2572          if (sumhi > PNG_HIMASK)  in png_write_find_filter()
2575             sum = (sumhi << PNG_HISHIFT) + sumlo;  in png_write_find_filter()
2717          png_uint_32 sumhi, sumlo;  in png_write_find_filter()  local
2719          sumhi = (sum >> PNG_HISHIFT) & PNG_HIMASK;  in png_write_find_filter()
2727                sumhi = (sumhi * png_ptr->filter_weights[j]) >>  in png_write_find_filter()
2734          sumhi = (sumhi * png_ptr->filter_costs[PNG_FILTER_VALUE_PAETH]) >>  in png_write_find_filter()
2737          if (sumhi > PNG_HIMASK)  in png_write_find_filter()
2740             sum = (sumhi << PNG_HISHIFT) + sumlo;  in png_write_find_filter()