772    png_uint_32        chunkpos; /* Position in chunk */  member
874    ps->chunkpos = 8;  in store_init()
901    ps->chunkpos = 8;  in store_freenew()
973    if (ps->chunkpos != 0U || ps->chunktype != 0U || ps->chunklen != 0U ||  in store_storefile()
991    ps->chunkpos = 8;  in store_storefile()
1287    png_uint_32 chunkpos = ps->chunkpos;  in store_write()  local
1310       if (chunkpos < 4)  in store_write()
1316          ++chunkpos;  in store_write()
1319       else if (chunkpos < 8)  in store_write()
1326          if (++chunkpos == 8)  in store_write()
1355          if (cb  > chunklen - chunkpos/* bytes left in chunk*/)  in store_write()
1356             cb = (png_size_t)/*SAFE*/(chunklen - chunkpos);  in store_write()
1359          chunkpos += (png_uint_32)/*SAFE*/cb;  in store_write()
1364          if (chunkpos >= chunklen) /* must be equal */  in store_write()
1365             chunkpos = chunktype = chunklen = 0;  in store_write()
1370    ps->chunkpos = chunkpos;  in store_write()
1473    png_uint_32 chunkpos = ps->chunkpos;  in store_read_chunk()  local
1478       if (chunkpos >= chunklen) /* end of last chunk */  in store_read_chunk()
1486          chunkpos = 0U; /* Position read so far */  in store_read_chunk()
1496          if (chunkpos < 8U)  in store_read_chunk()
1497             chunkpos = 8U;  in store_read_chunk()
1524                if (chunkpos != chunklen-4U)  in store_read_chunk()
1543                   chunkpos += 4U;  in store_read_chunk()
1590             if (chunkpos < chunklen-4U)  in store_read_chunk()
1600                if (avail > (chunklen-4U) - chunkpos)  in store_read_chunk()
1601                   avail = (uInt)/*SAFE*/((chunklen-4U) - chunkpos);  in store_read_chunk()
1607                chunkpos += (png_uint_32)/*SAFE*/avail;  in store_read_chunk()
1617                chunkpos += 4U;  in store_read_chunk()
1650          if (chunkpos < 8U) /* Return the header */ do  in store_read_chunk()
1655             if (chunkpos < 4U)  in store_read_chunk()
1661             shift = 3U & chunkpos;  in store_read_chunk()
1662             ++chunkpos;  in store_read_chunk()
1669          while (--st > 0 && chunkpos < 8);  in store_read_chunk()
1675             if (avail > chunklen - chunkpos)  in store_read_chunk()
1676                avail = (png_size_t)/*SAFE*/(chunklen - chunkpos);  in store_read_chunk()
1681             chunkpos += (png_uint_32)/*SAFE*/avail;  in store_read_chunk()
1686             if (chunkpos >= chunklen && max-st >= min &&  in store_read_chunk()
1696    ps->chunkpos = chunkpos;  in store_read_chunk()
2108    ps->chunkpos = 8;  in store_read_reset()