1504    ptrdiff_t       row_bytes;  member
1613       input_row += display->row_bytes/(sizeof (png_uint_16));  in png_write_image_16bit()
1738          input_row += display->row_bytes/(sizeof (png_uint_16));  in png_write_image_8bit()
1763          input_row += display->row_bytes/(sizeof (png_uint_16));  in png_write_image_8bit()
2079       ptrdiff_t row_bytes = display->row_stride;  in png_image_write_main()  local
2082          row_bytes *= (sizeof (png_uint_16));  in png_image_write_main()
2084       if (row_bytes < 0)  in png_image_write_main()
2085          row += (image->height-1) * (-row_bytes);  in png_image_write_main()
2088       display->row_bytes = row_bytes;  in png_image_write_main()
2136       ptrdiff_t row_bytes = display->row_bytes;  in png_image_write_main()  local
2142          row += row_bytes;  in png_image_write_main()