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root/radiance/ray/src/common/interp2d.c
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Comparing ray/src/common/interp2d.c (file contents):
Revision 2.14 by greg, Fri Jun 6 00:56:42 2014 UTC vs.
Revision 2.16 by greg, Thu Mar 11 01:58:59 2021 UTC

# Line 70 | Line 70 | interp2_alloc(int nsamps)
70          nip->ns = nsamps;
71          nip->dmin = 1;          /* default minimum diameter */
72          nip->smf = NI2DSMF;     /* default smoothing factor */
73 +        nip->c_data = NULL;
74          nip->da = NULL;
75                                  /* caller must assign spt[] array */
76          return(nip);
# Line 79 | Line 80 | interp2_alloc(int nsamps)
80   INTERP2 *
81   interp2_realloc(INTERP2 *ip, int nsamps)
82   {
83 +        INTERP2 *old_ip = ip;
84 +
85          if (ip == NULL)
86                  return(interp2_alloc(nsamps));
87          if (nsamps <= 1) {
# Line 92 | Line 95 | interp2_realloc(INTERP2 *ip, int nsamps)
95                  ip->da = NULL;
96          }
97          ip = (INTERP2 *)realloc(ip, sizeof(INTERP2)+sizeof(float)*2*(nsamps-1));
98 <        if (ip == NULL)
99 <                return(NULL);
98 >        if (ip == NULL) {
99 >                if (nsamps <= ip->ns)
100 >                        ip = old_ip;
101 >                else
102 >                        return(NULL);
103 >        }
104          ip->ns = nsamps;
105          return(ip);
106   }

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