713    png_line_indexp line_index = index->pass_line_index[pass][n];  in png_configure_decoder()  local
728    inflateCopy(&png_ptr->zstream, line_index->z_state);  in png_configure_decoder()
731    png_set_read_offset(png_ptr, line_index->stream_idat_position,  in png_configure_decoder()
732          line_index->bytes_left_in_idat);  in png_configure_decoder()
733    memcpy(png_ptr->prev_row, line_index->prev_row, row_byte_length);  in png_configure_decoder()
799          png_line_indexp line_index = png_malloc(png_ptr, sizeof(png_line_index));  in png_build_index()  local
800          index->pass_line_index[p][i] = line_index;  in png_build_index()
802          line_index->z_state = png_malloc(png_ptr, sizeof(z_stream));  in png_build_index()
803          inflateCopy(line_index->z_state, &png_ptr->zstream);  in png_build_index()
804          line_index->prev_row = png_malloc(png_ptr, row_byte_length);  in png_build_index()
805          memcpy(line_index->prev_row, png_ptr->prev_row, row_byte_length);  in png_build_index()
806          line_index->stream_idat_position = index->stream_idat_position;  in png_build_index()
807          line_index->bytes_left_in_idat = png_ptr->idat_size + png_ptr->zstream.avail_in;  in png_build_index()