621   jvirt_sarray_ptr sptr;  in realize_virt_arrays()  local
630   for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) {  in realize_virt_arrays()
631     if (sptr->mem_buffer == NULL) { /* if not realized yet */  in realize_virt_arrays()
632       space_per_minheight += (long) sptr->maxaccess *  in realize_virt_arrays()
633                              (long) sptr->samplesperrow * sizeof(JSAMPLE);  in realize_virt_arrays()
634       maximum_space += (long) sptr->rows_in_array *  in realize_virt_arrays()
635                        (long) sptr->samplesperrow * sizeof(JSAMPLE);  in realize_virt_arrays()
671   for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) {  in realize_virt_arrays()
672     if (sptr->mem_buffer == NULL) { /* if not realized yet */  in realize_virt_arrays()
673       minheights = ((long) sptr->rows_in_array - 1L) / sptr->maxaccess + 1L;  in realize_virt_arrays()
676         sptr->rows_in_mem = sptr->rows_in_array;  in realize_virt_arrays()
679         sptr->rows_in_mem = (JDIMENSION) (max_minheights * sptr->maxaccess);  in realize_virt_arrays()
680         jpeg_open_backing_store(cinfo, & sptr->b_s_info,  in realize_virt_arrays()
681                                 (long) sptr->rows_in_array *  in realize_virt_arrays()
682                                 (long) sptr->samplesperrow *  in realize_virt_arrays()
684         sptr->b_s_open = TRUE;  in realize_virt_arrays()
686       sptr->mem_buffer = alloc_sarray(cinfo, JPOOL_IMAGE,  in realize_virt_arrays()
687                                       sptr->samplesperrow, sptr->rows_in_mem);  in realize_virt_arrays()
688       sptr->rowsperchunk = mem->last_rowsperchunk;  in realize_virt_arrays()
689       sptr->cur_start_row = 0;  in realize_virt_arrays()
690       sptr->first_undef_row = 0;  in realize_virt_arrays()
691       sptr->dirty = FALSE;  in realize_virt_arrays()
979     jvirt_sarray_ptr sptr;  in free_pool()  local
982     for (sptr = mem->virt_sarray_list; sptr != NULL; sptr = sptr->next) {  in free_pool()
983       if (sptr->b_s_open) {     /* there may be no backing store */  in free_pool()
984         sptr->b_s_open = FALSE; /* prevent recursive close if error */  in free_pool()
985         (*sptr->b_s_info.close_backing_store) (cinfo, & sptr->b_s_info);  in free_pool()