49 |
|
FILE *fp; |
50 |
|
HOLO *hdsect; |
51 |
|
int fd; |
52 |
< |
int32 nextloc; |
52 |
> |
off_t nextloc, fsiz; |
53 |
|
int n; |
54 |
|
/* open holodeck file */ |
55 |
< |
if ((fp = fopen(fname, "r")) == NULL) { |
55 |
> |
if ((fp = fopen(fname, "rb")) == NULL) { |
56 |
|
sprintf(errmsg, "cannot open \"%s\"", fname); |
57 |
|
error(SYSTEM, errmsg); |
58 |
|
} |
64 |
|
fd = dup(fileno(fp)); /* dup file handle */ |
65 |
|
nextloc = ftell(fp); /* get stdio position */ |
66 |
|
fclose(fp); /* done with stdio */ |
67 |
< |
for (n = 0; nextloc > 0L; n++) { /* get the section(s) */ |
68 |
< |
lseek(fd, (off_t)nextloc, SEEK_SET); |
67 |
> |
for (n = 0; nextloc > 0; n++) { /* get the section(s) */ |
68 |
> |
lseek(fd, nextloc, SEEK_SET); |
69 |
|
read(fd, (char *)&nextloc, sizeof(nextloc)); |
70 |
|
fprintf(fout, "Section %d:\n", n); |
71 |
|
hdsect = hdinit(fd, NULL); /* load section directory */ |
72 |
|
psectstats(hdsect, fout); /* print section statistics */ |
73 |
|
} |
74 |
< |
nextloc = hdfilen(fd); /* print global statistics */ |
74 |
> |
fsiz = hdfilen(fd); /* print global statistics */ |
75 |
|
fputs("=====================================================\n", fout); |
76 |
|
fprintf(fout, "Total samples/beams: %ld/%ld (%.2f samples/beam)\n", |
77 |
|
samptot, beamtot, (double)samptot/beamtot); |
78 |
|
fprintf(fout, "%.1f Mbyte file, %.1f%% fragmentation\n", |
79 |
< |
nextloc/(1024.*1024.), |
80 |
< |
100.*(nextloc-hdfiluse(fd,1))/nextloc); |
79 |
> |
fsiz/(1024.*1024.), |
80 |
> |
100.*(fsiz-hdfiluse(fd))/fsiz); |
81 |
|
/* don't bother with cleanup */ |
82 |
|
#if 0 |
83 |
|
hddone(NULL); /* free sections */ |
88 |
|
|
89 |
|
static void |
90 |
|
psectstats( /* print statistical information for section */ |
91 |
< |
register HOLO *hp, |
91 |
> |
HOLO *hp, |
92 |
|
FILE *fp |
93 |
|
) |
94 |
|
{ |
95 |
|
int scount[NHBINS]; |
96 |
|
int minsamp = 10000, maxsamp = 0; |
97 |
|
FVECT vt; |
98 |
< |
double sqrtmaxp; |
98 |
> |
double sqrtmaxp, median; |
99 |
|
int bmin, bmax, cnt; |
100 |
< |
register int i; |
100 |
> |
int i; |
101 |
|
|
102 |
|
fcross(vt, hp->xv[0], hp->xv[1]); |
103 |
|
fprintf(fp, "\tWorld volume: %g\n", fabs(DOT(vt,hp->xv[2]))); |
119 |
|
for (i = NHBINS; i--; ) |
120 |
|
scount[i] = 0; |
121 |
|
for (i = nbeams(hp); i > 0; i--) |
122 |
< |
scount[(int)(NHBINS*sqrt((double)hp->bi[i].nrd)/sqrtmaxp)]++; |
123 |
< |
for (cnt = 0, i = 0; i < NHBINS && cnt<<1 < nbeams(hp); i++) |
122 |
> |
scount[(int)((NHBINS-FTINY)*sqrt((double)hp->bi[i].nrd)/sqrtmaxp)]++; |
123 |
> |
for (cnt = i = 0; i < NHBINS && cnt<<1 < nbeams(hp); i++) |
124 |
|
cnt += scount[i]; |
125 |
+ |
median = (i-.5)*(i-.5)*(maxsamp+1)*(1./(NHBINS*NHBINS)); |
126 |
+ |
if (median < minsamp) median = minsamp; |
127 |
|
fprintf(fp, "\tSamples per beam: [min,med,max]= [%d,%.0f,%d]\n", |
128 |
< |
minsamp, |
127 |
< |
(i-.5)*(i-.5)*(maxsamp+1)/(NHBINS*NHBINS), |
128 |
< |
maxsamp); |
128 |
> |
minsamp, median, maxsamp); |
129 |
|
fprintf(fp, "\tHistogram: [minsamp,maxsamp)= #beams\n"); |
130 |
|
bmax = 0; |
131 |
|
for (i = 0; i < NHBINS; i++) { |
132 |
|
bmin = bmax; |
133 |
< |
bmax = (i+1)*(i+1)*(maxsamp+1)/(NHBINS*NHBINS); |
133 |
> |
bmax = (i+1)*(i+1)*(maxsamp+1)*(1./(NHBINS*NHBINS)); |
134 |
|
fprintf(fp, "\t\t[%d,%d)= %d\n", bmin, bmax, scount[i]); |
135 |
|
} |
136 |
|
} |