760 |
|
int |
761 |
|
getinp(char *buf, FILE *fp) |
762 |
|
{ |
763 |
+ |
double dv[3]; |
764 |
+ |
float fv[3]; |
765 |
|
char *cp; |
766 |
|
int i; |
767 |
|
|
770 |
|
cp = buf; /* make sure we get 6 floats */ |
771 |
|
for (i = 0; i < 6; i++) { |
772 |
|
if (fgetword(cp, buf+127-cp, fp) == NULL) |
773 |
< |
return 0; |
773 |
> |
return -1; |
774 |
> |
if (i >= 3) |
775 |
> |
dv[i-3] = atof(cp); |
776 |
|
if ((cp = fskip(cp)) == NULL || *cp) |
777 |
< |
return 0; |
777 |
> |
return -1; |
778 |
|
*cp++ = ' '; |
779 |
|
} |
780 |
|
getc(fp); /* get/put eol */ |
781 |
|
*cp-- = '\0'; *cp = '\n'; |
782 |
+ |
if (DOT(dv,dv) <= FTINY*FTINY) |
783 |
+ |
return 0; /* dummy ray */ |
784 |
|
return strlen(buf); |
785 |
|
case 'f': |
786 |
|
if (fread(buf, sizeof(float), 6, fp) < 6) |
787 |
< |
return 0; |
787 |
> |
return -1; |
788 |
> |
memcpy(fv, buf+3*sizeof(float), 3*sizeof(float)); |
789 |
> |
if (DOT(fv,fv) <= FTINY*FTINY) |
790 |
> |
return 0; /* dummy ray */ |
791 |
|
return sizeof(float)*6; |
792 |
|
case 'd': |
793 |
|
if (fread(buf, sizeof(double), 6, fp) < 6) |
794 |
< |
return 0; |
794 |
> |
return -1; |
795 |
> |
memcpy(dv, buf+3*sizeof(double), 3*sizeof(double)); |
796 |
> |
if (DOT(dv,dv) <= FTINY*FTINY) |
797 |
> |
return 0; /* dummy ray */ |
798 |
|
return sizeof(double)*6; |
799 |
|
} |
800 |
|
error(INTERNAL, "botched input format"); |
801 |
< |
return 0; /* pro forma return */ |
801 |
> |
return -1; /* pro forma return */ |
802 |
|
} |
803 |
|
|
804 |
|
static float rparams[9]; /* traced ray parameters */ |
972 |
|
} |
973 |
|
done_contrib(); /* sum up contributions & output */ |
974 |
|
lastdone = rtp->raynum; |
975 |
< |
free(rtp->buf); /* free up buffer space */ |
975 |
> |
if (rtp->buf != NULL) /* free up buffer space */ |
976 |
> |
free(rtp->buf); |
977 |
|
rt_unproc = rtp->next; |
978 |
|
free(rtp); /* done with this ray tree */ |
979 |
|
} |
1061 |
|
int iblen; |
1062 |
|
struct rtproc *rtp; |
1063 |
|
/* loop over input */ |
1064 |
< |
while ((iblen = getinp(inpbuf, fin)) > 0) { |
1065 |
< |
if (lastray+1 < lastray || /* need reset? */ |
1066 |
< |
queue_length() > 10*nrtprocs()) { |
1064 |
> |
while ((iblen = getinp(inpbuf, fin)) >= 0) { |
1065 |
> |
if (!iblen || /* need reset? */ |
1066 |
> |
queue_length() > 10*nrtprocs() || |
1067 |
> |
lastray+1 < lastray) { |
1068 |
|
while (wait_rproc() != NULL) |
1069 |
|
process_queue(); |
1070 |
|
if (lastray+1 < lastray) |
1071 |
|
lastdone = lastray = 0; |
1072 |
|
} |
1073 |
|
rtp = get_rproc(); /* get avail. rtrace process */ |
1074 |
< |
rtp->raynum = ++lastray; /* assign ray to it */ |
1075 |
< |
writebuf(rtp->pd.w, inpbuf, iblen); |
1076 |
< |
if (raysleft && !--raysleft) |
1077 |
< |
break; |
1074 |
> |
rtp->raynum = ++lastray; /* assign ray */ |
1075 |
> |
if (iblen) { /* trace ray if valid */ |
1076 |
> |
writebuf(rtp->pd.w, inpbuf, iblen); |
1077 |
> |
} else { /* else bypass dummy ray */ |
1078 |
> |
queue_raytree(rtp); /* empty tree */ |
1079 |
> |
if ((yres <= 0) | (waitflush > 1)) |
1080 |
> |
waitflush = 1; /* flush after this */ |
1081 |
> |
} |
1082 |
|
process_queue(); /* catch up with results */ |
1083 |
+ |
if (raysleft && !--raysleft) |
1084 |
+ |
break; /* preemptive EOI */ |
1085 |
|
} |
1086 |
|
while (wait_rproc() != NULL) /* process outstanding rays */ |
1087 |
|
process_queue(); |
1239 |
|
lu_doall(&ofiletab, myseeko, &nvals); |
1240 |
|
/* skip repeated input */ |
1241 |
|
for (nvals = 0; nvals < lastout; nvals++) |
1242 |
< |
if (getinp(oname, fin) <= 0) |
1242 |
> |
if (getinp(oname, fin) < 0) |
1243 |
|
error(USER, "unexpected EOF on input"); |
1244 |
|
lastray = lastdone = (unsigned long)lastout; |
1245 |
|
if (raysleft) |