/* See {dsm_image.h} */
/* Last edited on 2016-04-10 18:45:03 by stolfilocal */

#define _GNU_SOURCE
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <stdint.h>

#include <bool.h>
#include <affirm.h>
#include <jsfile.h>
#include <argparser.h>

#include <dsm_image.h>
#include <dsm_region.h>

void dsm_region_arg_parse(argparser_t *pp, const char *keyword, int nrmin, int nrmax, int *nrP, dsm_region_t **listP)
  { int nr = 0;
    dsm_region_t *regs = (dsm_region_t *)notnull(malloc(nrmax*sizeof(dsm_region_t)), "out of mem");
    while (argparser_keyword_present(pp, "-region"))
      { int dx = (int32_t)argparser_get_next_int(pp, 0, dsm_image_size_MAX - 1);
        int dy = (int32_t)argparser_get_next_int(pp, 0, dsm_image_size_MAX - 1);
        int nx = (int32_t)argparser_get_next_int(pp, 1, dsm_image_size_MAX - dx);
        int ny = (int32_t)argparser_get_next_int(pp, 1, dsm_image_size_MAX - dy);
        regs[nr] = (dsm_region_t){ .dx = dx, .dy = dy, .nx = nx, .ny = ny };
        nr++;
      }
    if ((nr < nrmin) || (nr > nrmax))
      { char *msg = NULL;
        char *msg = jsprintf("must specify \"%s\" at least %d and at most %d times", keyword, nrmin, nrmax);
        argparser_error(pp, ""); }
    (*listP) = (dsm_region_t *)realloc(regs, nr*sizeof(dsm_region_t));
    (*nrP) = nr;
  }