| 5 |
|
* Find extrema points in a Radiance picture. |
| 6 |
|
*/ |
| 7 |
|
|
| 8 |
– |
#include <stdio.h> |
| 8 |
|
#include <math.h> |
| 10 |
– |
#include <string.h> |
| 9 |
|
|
| 10 |
+ |
#include "rtio.h" |
| 11 |
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#include "platform.h" |
| 12 |
|
#include "color.h" |
| 13 |
|
#include "resolu.h" |
| 15 |
|
|
| 16 |
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int orig = 0; |
| 17 |
|
|
| 19 |
– |
int wrongformat = 0; |
| 20 |
– |
|
| 18 |
|
COLOR expos = WHTCOLOR; |
| 19 |
|
|
| 20 |
+ |
char fmt[MAXFMTLEN]; |
| 21 |
+ |
|
| 22 |
|
static gethfunc headline; |
| 23 |
|
|
| 24 |
|
|
| 28 |
|
void *p |
| 29 |
|
) |
| 30 |
|
{ |
| 32 |
– |
char fmt[32]; |
| 31 |
|
double d; |
| 32 |
|
COLOR ctmp; |
| 33 |
|
|
| 34 |
< |
if (isformat(s)) { /* format */ |
| 35 |
< |
formatval(fmt, s); |
| 38 |
< |
wrongformat = !globmatch(PICFMT, fmt); |
| 39 |
< |
} |
| 34 |
> |
if (formatval(fmt, s)) /* format */ |
| 35 |
> |
return(0); |
| 36 |
|
if (!orig) |
| 37 |
|
return(0); |
| 38 |
|
if (isexpos(s)) { /* exposure */ |
| 63 |
|
SET_FILE_BINARY(stdin); |
| 64 |
|
for (i = 1; i < argc; i++) /* get options */ |
| 65 |
|
if (!strcmp(argv[i], "-o")) |
| 66 |
< |
orig++; |
| 66 |
> |
orig = 1; |
| 67 |
> |
else if (!strcmp(argv[i], "-O")) |
| 68 |
> |
orig = -1; |
| 69 |
|
else |
| 70 |
|
break; |
| 71 |
|
|
| 75 |
|
exit(1); |
| 76 |
|
} |
| 77 |
|
/* get our header */ |
| 78 |
< |
if (getheader(stdin, headline, NULL) < 0 || wrongformat || |
| 78 |
> |
if (getheader(stdin, headline, NULL) < 0 || !globmatch(PICFMT, fmt) || |
| 79 |
|
fgetresolu(&xres, &yres, stdin) < 0) { |
| 80 |
|
fprintf(stderr, "%s: bad picture format\n", argv[0]); |
| 81 |
|
exit(1); |
| 82 |
|
} |
| 83 |
+ |
if (orig < 0 && !strcmp(CIEFMT, fmt)) |
| 84 |
+ |
scalecolor(expos, 1./WHTEFFICACY); |
| 85 |
|
if ((scan = (COLR *)malloc(xres*sizeof(COLR))) == NULL) { |
| 86 |
|
fprintf(stderr, "%s: out of memory\n", argv[0]); |
| 87 |
|
exit(1); |
| 88 |
|
} |
| 89 |
< |
setcolr(cmin, 1e10, 1e10, 1e10); |
| 90 |
< |
setcolr(cmax, 0., 0., 0.); |
| 89 |
> |
setcolr(cmin, 1e30, 1e30, 1e30); |
| 90 |
> |
setcolr(cmax, 0., 0., 0.); xmax=ymax=0; |
| 91 |
|
/* find extrema */ |
| 92 |
|
for (y = yres-1; y >= 0; y--) { |
| 93 |
|
if (freadcolrs(scan, xres, stdin) < 0) { |
| 112 |
|
} |
| 113 |
|
} |
| 114 |
|
free((void *)scan); |
| 115 |
< |
printf("%d %d\t%e %e %e\n", xmin, ymin, |
| 115 |
> |
printf("%d %d\t%.2e %.2e %.2e\n", xmin, ymin, |
| 116 |
|
colrval(cmin,RED)/colval(expos,RED), |
| 117 |
|
colrval(cmin,GRN)/colval(expos,GRN), |
| 118 |
|
colrval(cmin,BLU)/colval(expos,BLU)); |
| 119 |
< |
printf("%d %d\t%e %e %e\n", xmax, ymax, |
| 119 |
> |
printf("%d %d\t%.2e %.2e %.2e\n", xmax, ymax, |
| 120 |
|
colrval(cmax,RED)/colval(expos,RED), |
| 121 |
|
colrval(cmax,GRN)/colval(expos,GRN), |
| 122 |
|
colrval(cmax,BLU)/colval(expos,BLU)); |
