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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Find extrema points in a Radiance picture. |
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* Find extrema points in a Radiance picture (RGBE, XYZE, or HyperSpectral) |
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*/ |
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#include <stdio.h> |
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#include <math.h> |
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#ifdef MSDOS |
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< |
#include <fcntl.h> |
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< |
#endif |
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|
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> |
#include "rtio.h" |
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#include "platform.h" |
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#include "color.h" |
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#include "resolu.h" |
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|
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int orig = 0; |
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|
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– |
int wrongformat = 0; |
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|
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COLOR expos = WHTCOLOR; |
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|
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char fmt[MAXFMTLEN]; |
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|
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headline(s) /* check header line */ |
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char *s; |
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static gethfunc headline; |
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> |
|
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> |
|
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> |
static int |
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> |
headline( /* check header line */ |
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> |
char *s, |
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> |
void *p |
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> |
) |
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{ |
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char fmt[32]; |
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double d; |
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COLOR ctmp; |
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|
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if (isformat(s)) { /* format */ |
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formatval(fmt, s); |
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wrongformat = !globmatch(PICFMT, fmt); |
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if (formatval(fmt, s)) /* format */ |
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> |
return(0); |
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if (iswlsplit(s)) { /* wavelength splits */ |
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wlsplitval(WLPART, s); |
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return(0); |
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} |
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if (!orig) |
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if (isncomp(s)) { /* # spectral components */ |
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> |
NCSAMP = ncompval(s); |
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return(0); |
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} |
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if (!orig) /* don't undo exposure? */ |
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return(0); |
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if (isexpos(s)) { /* exposure */ |
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d = exposval(s); |
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scalecolor(expos, d); |
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} |
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|
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|
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main(argc, argv) |
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int argc; |
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< |
char *argv[]; |
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> |
int |
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> |
main( |
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> |
int argc, |
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> |
char *argv[] |
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> |
) |
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{ |
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int i; |
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int xres, yres; |
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int y; |
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< |
register int x; |
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< |
COLR *scan; |
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< |
COLR cmin, cmax; |
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> |
int x; |
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> |
COLRV *scan; |
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> |
SCOLR cmin, cmax; |
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> |
COLOR tcol; |
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int xmin, ymin, xmax, ymax; |
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< |
#ifdef MSDOS |
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< |
extern int _fmode; |
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< |
_fmode = O_BINARY; |
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< |
setmode(fileno(stdin), O_BINARY); |
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< |
#endif |
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> |
|
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> |
SET_DEFAULT_BINARY(); |
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> |
SET_FILE_BINARY(stdin); |
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for (i = 1; i < argc; i++) /* get options */ |
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if (!strcmp(argv[i], "-o")) |
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< |
orig++; |
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> |
orig = 1; |
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> |
else if (!strcmp(argv[i], "-O")) |
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> |
orig = -1; |
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else |
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break; |
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|
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if (i == argc-1 && freopen(argv[i], "r", stdin) == NULL) { |
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fprintf(stderr, "%s: can't open input \"%s\"\n", |
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argv[0], argv[i]); |
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< |
exit(1); |
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> |
return(1); |
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} |
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/* get our header */ |
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< |
if (getheader(stdin, headline, NULL) < 0 || wrongformat || |
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> |
if (getheader(stdin, headline, NULL) < 0 || |
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> |
(!globmatch(PICFMT, fmt) && strcmp(fmt, SPECFMT)) || |
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fgetresolu(&xres, &yres, stdin) < 0) { |
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fprintf(stderr, "%s: bad picture format\n", argv[0]); |
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< |
exit(1); |
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> |
return(1); |
| 93 |
|
} |
| 94 |
< |
if ((scan = (COLR *)malloc(xres*sizeof(COLR))) == NULL) { |
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> |
if (setspectrsamp(CNDX, WLPART) < 0) { |
| 95 |
> |
fprintf(stderr, "%s: bad wavelength split or component count", |
| 96 |
> |
argv[0]); |
| 97 |
> |
return(1); |
| 98 |
> |
} |
| 99 |
> |
if (orig < 0 && !strcmp(CIEFMT, fmt)) |
| 100 |
> |
scalecolor(expos, 1./WHTEFFICACY); |
| 101 |
> |
if ((scan = (COLRV *)malloc(xres*sizeof(COLRV)*(NCSAMP+1))) == NULL) { |
| 102 |
|
fprintf(stderr, "%s: out of memory\n", argv[0]); |
| 103 |
< |
exit(1); |
| 103 |
> |
return(1); |
| 104 |
|
} |
| 105 |
< |
setcolr(cmin, 1e10, 1e10, 1e10); |
| 106 |
< |
setcolr(cmax, 0., 0., 0.); |
| 105 |
> |
setscolr(cmin, 1e30, 1e30, 1e30); xmin=ymin=0; |
| 106 |
> |
scolrblack(cmax); xmax=ymax=0; |
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/* find extrema */ |
| 108 |
|
for (y = yres-1; y >= 0; y--) { |
| 109 |
< |
if (freadcolrs(scan, xres, stdin) < 0) { |
| 109 |
> |
if (freadscolrs(scan, NCSAMP, xres, stdin) < 0) { |
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|
fprintf(stderr, "%s: read error on input\n", argv[0]); |
| 111 |
< |
exit(1); |
| 111 |
> |
return(1); |
| 112 |
|
} |
| 113 |
|
for (x = xres; x-- > 0; ) { |
| 114 |
< |
if (scan[x][EXP] > cmax[EXP] || |
| 115 |
< |
(scan[x][EXP] == cmax[EXP] && |
| 116 |
< |
normbright(scan[x]) > |
| 117 |
< |
normbright(cmax))) { |
| 118 |
< |
copycolr(cmax, scan[x]); |
| 114 |
> |
const COLRV * sclr = scan + x*(NCSAMP+1); |
| 115 |
> |
if (sclr[CNDX[EXP]] > cmax[CNDX[EXP]] || |
| 116 |
> |
(sclr[CNDX[EXP]] == cmax[CNDX[EXP]] && |
| 117 |
> |
normpbright(sclr) > normpbright(cmax))) { |
| 118 |
> |
copyscolr(cmax, sclr); |
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|
xmax = x; ymax = y; |
| 120 |
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} |
| 121 |
< |
if (scan[x][EXP] < cmin[EXP] || |
| 122 |
< |
(scan[x][EXP] == cmin[EXP] && |
| 123 |
< |
normbright(scan[x]) < |
| 124 |
< |
normbright(cmin))) { |
| 104 |
< |
copycolr(cmin, scan[x]); |
| 121 |
> |
if (sclr[CNDX[EXP]] < cmin[CNDX[EXP]] || |
| 122 |
> |
(sclr[CNDX[EXP]] == cmin[CNDX[EXP]] && |
| 123 |
> |
normpbright(sclr) < normpbright(cmin))) { |
| 124 |
> |
copyscolr(cmin, sclr); |
| 125 |
|
xmin = x; ymin = y; |
| 126 |
|
} |
| 127 |
|
} |
| 128 |
|
} |
| 129 |
< |
free((void *)scan); |
| 130 |
< |
printf("%d %d\t%e %e %e\n", xmin, ymin, |
| 131 |
< |
colrval(cmin,RED)/colval(expos,RED), |
| 132 |
< |
colrval(cmin,GRN)/colval(expos,GRN), |
| 133 |
< |
colrval(cmin,BLU)/colval(expos,BLU)); |
| 134 |
< |
printf("%d %d\t%e %e %e\n", xmax, ymax, |
| 135 |
< |
colrval(cmax,RED)/colval(expos,RED), |
| 136 |
< |
colrval(cmax,GRN)/colval(expos,GRN), |
| 137 |
< |
colrval(cmax,BLU)/colval(expos,BLU)); |
| 138 |
< |
exit(0); |
| 129 |
> |
free(scan); |
| 130 |
> |
scolr_color(tcol, cmin); |
| 131 |
> |
printf("%d %d\t%.2e %.2e %.2e\n", xmin, ymin, |
| 132 |
> |
colval(tcol,RED)/colval(expos,RED), |
| 133 |
> |
colval(tcol,GRN)/colval(expos,GRN), |
| 134 |
> |
colval(tcol,BLU)/colval(expos,BLU)); |
| 135 |
> |
scolr_color(tcol, cmax); |
| 136 |
> |
printf("%d %d\t%.2e %.2e %.2e\n", xmax, ymax, |
| 137 |
> |
colval(tcol,RED)/colval(expos,RED), |
| 138 |
> |
colval(tcol,GRN)/colval(expos,GRN), |
| 139 |
> |
colval(tcol,BLU)/colval(expos,BLU)); |
| 140 |
> |
return(0); |
| 141 |
|
} |
