1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: ra_tiff.c,v 2.26 2003/07/27 22:12:03 schorsch Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* Program to convert between RADIANCE and TIFF files. |
6 |
* Added LogLuv encodings 7/97 (GWL). |
7 |
* Added white-balance adjustment 10/01 (GW). |
8 |
*/ |
9 |
|
10 |
#include <stdio.h> |
11 |
#include <math.h> |
12 |
#include <ctype.h> |
13 |
#include <time.h> |
14 |
#include <string.h> |
15 |
|
16 |
#include "tiffio.h" |
17 |
#include "color.h" |
18 |
#include "resolu.h" |
19 |
|
20 |
#define GAMCOR 2.2 /* default gamma */ |
21 |
|
22 |
/* conversion flags */ |
23 |
#define C_CXFM 0x1 /* needs color transformation */ |
24 |
#define C_GAMUT 0x2 /* needs gamut mapping */ |
25 |
#define C_GAMMA 0x4 /* needs gamma correction */ |
26 |
#define C_GRY 0x8 /* TIFF is greyscale */ |
27 |
#define C_XYZE 0x10 /* Radiance is XYZE */ |
28 |
#define C_RFLT 0x20 /* Radiance data is float */ |
29 |
#define C_TFLT 0x40 /* TIFF data is float */ |
30 |
#define C_TWRD 0x80 /* TIFF data is 16-bit */ |
31 |
#define C_PRIM 0x100 /* has assigned primaries */ |
32 |
|
33 |
struct { |
34 |
uint16 flags; /* conversion flags (defined above) */ |
35 |
char capdate[20]; /* capture date/time */ |
36 |
char owner[256]; /* content owner */ |
37 |
uint16 comp; /* TIFF compression type */ |
38 |
uint16 phot; /* TIFF photometric type */ |
39 |
uint16 pconf; /* TIFF planar configuration */ |
40 |
float gamcor; /* gamma correction value */ |
41 |
short bradj; /* Radiance exposure adjustment (stops) */ |
42 |
uint16 orient; /* visual orientation (TIFF spec.) */ |
43 |
double stonits; /* input conversion to nits */ |
44 |
float pixrat; /* pixel aspect ratio */ |
45 |
FILE *rfp; /* Radiance stream pointer */ |
46 |
TIFF *tif; /* TIFF pointer */ |
47 |
uint32 xmax, ymax; /* image dimensions */ |
48 |
COLORMAT cmat; /* color transformation matrix */ |
49 |
RGBPRIMS prims; /* RGB primaries */ |
50 |
union { |
51 |
COLR *colrs; /* 4-byte ???E pointer */ |
52 |
COLOR *colors; /* float array pointer */ |
53 |
char *p; /* generic pointer */ |
54 |
} r; /* Radiance scanline */ |
55 |
union { |
56 |
uint8 *bp; /* byte pointer */ |
57 |
uint16 *wp; /* word pointer */ |
58 |
float *fp; /* float pointer */ |
59 |
char *p; /* generic pointer */ |
60 |
} t; /* TIFF scanline */ |
61 |
void (*tf)(); /* translation procedure */ |
62 |
} cvts = { /* conversion structure */ |
63 |
0, "", "", COMPRESSION_NONE, PHOTOMETRIC_RGB, |
64 |
PLANARCONFIG_CONTIG, GAMCOR, 0, 1, 1., 1., |
65 |
}; |
66 |
|
67 |
#define CHK(f) (cvts.flags & (f)) |
68 |
#define SET(f) (cvts.flags |= (f)) |
69 |
#define CLR(f) (cvts.flags &= ~(f)) |
70 |
#define TGL(f) (cvts.flags ^= (f)) |
71 |
|
72 |
void Luv2Color(), L2Color(), RGB2Colr(), Gry2Colr(); |
73 |
void Color2Luv(), Color2L(), Colr2RGB(), Colr2Gry(); |
74 |
void RRGGBB2Color(), GGry2Color(), Color2RRGGBB(), Color2GGry(); |
75 |
|
76 |
#define RfGfBf2Color Luv2Color |
77 |
#define Gryf2Color L2Color |
78 |
#define Color2Gryf Color2L |
79 |
#define Color2RfGfBf Color2Luv |
80 |
|
81 |
short ortab[8] = { /* orientation conversion table */ |
82 |
YMAJOR|YDECR, |
83 |
YMAJOR|YDECR|XDECR, |
84 |
YMAJOR|XDECR, |
85 |
YMAJOR, |
86 |
YDECR, |
87 |
XDECR|YDECR, |
88 |
XDECR, |
89 |
0 |
90 |
}; |
91 |
|
92 |
#define pixorder() ortab[cvts.orient-1] |
93 |
|
94 |
extern char TMSTR[]; /* "CAPDATE=" from header.c */ |
95 |
char OWNSTR[] = "OWNER="; |
96 |
|
97 |
char *progname; |
98 |
|
99 |
static gethfunc headline; |
100 |
|
101 |
|
102 |
main(argc, argv) |
103 |
int argc; |
104 |
char *argv[]; |
105 |
{ |
106 |
int reverse = 0; |
107 |
int i; |
108 |
|
109 |
progname = argv[0]; |
110 |
|
111 |
for (i = 1; i < argc; i++) |
112 |
if (argv[i][0] == '-') |
113 |
switch (argv[i][1]) { |
114 |
case 'g': /* gamma correction */ |
115 |
cvts.gamcor = atof(argv[++i]); |
116 |
break; |
117 |
case 'x': /* XYZE Radiance output */ |
118 |
TGL(C_XYZE); |
119 |
break; |
120 |
case 'z': /* LZW compressed output */ |
121 |
cvts.comp = COMPRESSION_LZW; |
122 |
break; |
123 |
case 'L': /* LogLuv 32-bit output */ |
124 |
cvts.comp = COMPRESSION_SGILOG; |
125 |
cvts.phot = PHOTOMETRIC_LOGLUV; |
126 |
break; |
127 |
case 'l': /* LogLuv 24-bit output */ |
128 |
cvts.comp = COMPRESSION_SGILOG24; |
129 |
cvts.phot = PHOTOMETRIC_LOGLUV; |
130 |
break; |
131 |
case 'w': /* 16-bit/primary output? */ |
132 |
TGL(C_TWRD); |
133 |
break; |
134 |
case 'f': /* IEEE float output? */ |
135 |
TGL(C_TFLT); |
136 |
break; |
137 |
case 'b': /* greyscale output? */ |
138 |
TGL(C_GRY); |
139 |
break; |
140 |
case 'e': /* exposure adjustment */ |
141 |
if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
142 |
goto userr; |
143 |
cvts.bradj = atoi(argv[++i]); |
144 |
break; |
145 |
case 'r': /* reverse conversion? */ |
146 |
reverse = !reverse; |
147 |
break; |
148 |
case '\0': |
149 |
goto doneopts; |
150 |
default: |
151 |
goto userr; |
152 |
} |
153 |
else |
154 |
break; |
155 |
doneopts: |
156 |
if (reverse) { |
157 |
|
158 |
if (i != argc-2 && i != argc-1) |
159 |
goto userr; |
160 |
|
161 |
tiff2ra(i, argv); |
162 |
|
163 |
} else { |
164 |
|
165 |
if (i != argc-2) |
166 |
goto userr; |
167 |
/* consistency checks */ |
168 |
if (CHK(C_GRY)) { |
169 |
if (cvts.phot == PHOTOMETRIC_RGB) |
170 |
cvts.phot = PHOTOMETRIC_MINISBLACK; |
171 |
else { |
172 |
cvts.phot = PHOTOMETRIC_LOGL; |
173 |
cvts.comp = COMPRESSION_SGILOG; |
174 |
} |
175 |
} |
176 |
if (CHK(C_TWRD|C_TFLT) == (C_TWRD|C_TFLT)) |
177 |
goto userr; |
178 |
|
179 |
ra2tiff(i, argv); |
180 |
} |
181 |
|
182 |
exit(0); |
183 |
userr: |
184 |
fprintf(stderr, |
185 |
"Usage: %s [-z|-L|-l|-f|-w][-b][-e +/-stops][-g gamma] {in.pic|-} out.tif\n", |
186 |
progname); |
187 |
fprintf(stderr, |
188 |
" Or: %s -r [-x][-e +/-stops][-g gamma] in.tif [out.pic|-]\n", |
189 |
progname); |
190 |
exit(1); |
191 |
} |
192 |
|
193 |
|
194 |
quiterr(err) /* print message and exit */ |
195 |
char *err; |
196 |
{ |
197 |
if (err != NULL) { |
198 |
fprintf(stderr, "%s: %s\n", progname, err); |
199 |
exit(1); |
200 |
} |
201 |
exit(0); |
202 |
} |
203 |
|
204 |
|
205 |
allocbufs() /* allocate scanline buffers */ |
206 |
{ |
207 |
int rsiz, tsiz; |
208 |
|
209 |
rsiz = CHK(C_RFLT) ? sizeof(COLOR) : sizeof(COLR); |
210 |
tsiz = (CHK(C_TFLT) ? sizeof(float) : |
211 |
CHK(C_TWRD) ? sizeof(uint16) : sizeof(uint8)) * |
212 |
(CHK(C_GRY) ? 1 : 3); |
213 |
cvts.r.p = (char *)malloc(rsiz*cvts.xmax); |
214 |
cvts.t.p = (char *)malloc(tsiz*cvts.xmax); |
215 |
if ((cvts.r.p == NULL) | (cvts.t.p == NULL)) |
216 |
quiterr("no memory to allocate scanline buffers"); |
217 |
} |
218 |
|
219 |
|
220 |
initfromtif() /* initialize conversion from TIFF input */ |
221 |
{ |
222 |
uint16 hi; |
223 |
char *cp; |
224 |
float *fa, f1, f2; |
225 |
|
226 |
CLR(C_GRY|C_GAMMA|C_PRIM|C_RFLT|C_TFLT|C_TWRD|C_CXFM); |
227 |
|
228 |
TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_PLANARCONFIG, &cvts.pconf); |
229 |
|
230 |
if (TIFFGetField(cvts.tif, TIFFTAG_PRIMARYCHROMATICITIES, &fa)) { |
231 |
cvts.prims[RED][CIEX] = fa[0]; |
232 |
cvts.prims[RED][CIEY] = fa[1]; |
233 |
cvts.prims[GRN][CIEX] = fa[2]; |
234 |
cvts.prims[GRN][CIEY] = fa[3]; |
235 |
cvts.prims[BLU][CIEX] = fa[4]; |
236 |
cvts.prims[BLU][CIEY] = fa[5]; |
237 |
cvts.prims[WHT][CIEX] = 1./3.; |
238 |
cvts.prims[WHT][CIEY] = 1./3.; |
239 |
if (TIFFGetField(cvts.tif, TIFFTAG_WHITEPOINT, &fa)) { |
240 |
cvts.prims[WHT][CIEX] = fa[0]; |
241 |
cvts.prims[WHT][CIEY] = fa[1]; |
242 |
} |
243 |
SET(C_PRIM); |
244 |
} |
245 |
|
246 |
if (!TIFFGetField(cvts.tif, TIFFTAG_COMPRESSION, &cvts.comp)) |
247 |
cvts.comp = COMPRESSION_NONE; |
248 |
|
249 |
if (TIFFGetField(cvts.tif, TIFFTAG_XRESOLUTION, &f1) && |
250 |
TIFFGetField(cvts.tif, TIFFTAG_YRESOLUTION, &f2)) |
251 |
cvts.pixrat = f1/f2; |
252 |
|
253 |
TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_ORIENTATION, &cvts.orient); |
254 |
|
255 |
if (!TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_PHOTOMETRIC, &cvts.phot)) |
256 |
quiterr("TIFF has unspecified photometric type"); |
257 |
|
258 |
switch (cvts.phot) { |
259 |
case PHOTOMETRIC_LOGLUV: |
260 |
SET(C_RFLT|C_TFLT); |
261 |
if (!CHK(C_XYZE)) { |
262 |
cpcolormat(cvts.cmat, xyz2rgbmat); |
263 |
SET(C_CXFM|C_GAMUT); |
264 |
} else if (cvts.comp == COMPRESSION_SGILOG) |
265 |
SET(C_GAMUT); |
266 |
if (cvts.pconf != PLANARCONFIG_CONTIG) |
267 |
quiterr("cannot handle separate Luv planes"); |
268 |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
269 |
SGILOGDATAFMT_FLOAT); |
270 |
cvts.tf = Luv2Color; |
271 |
break; |
272 |
case PHOTOMETRIC_LOGL: |
273 |
SET(C_GRY|C_RFLT|C_TFLT|C_GAMUT); |
274 |
cvts.pconf = PLANARCONFIG_CONTIG; |
275 |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
276 |
SGILOGDATAFMT_FLOAT); |
277 |
cvts.tf = L2Color; |
278 |
break; |
279 |
case PHOTOMETRIC_YCBCR: |
280 |
if (cvts.comp == COMPRESSION_JPEG && |
281 |
cvts.pconf == PLANARCONFIG_CONTIG) { |
282 |
TIFFSetField(cvts.tif, TIFFTAG_JPEGCOLORMODE, |
283 |
JPEGCOLORMODE_RGB); |
284 |
cvts.phot = PHOTOMETRIC_RGB; |
285 |
} else |
286 |
quiterr("unsupported photometric type"); |
287 |
/* fall through */ |
288 |
case PHOTOMETRIC_RGB: |
289 |
SET(C_GAMMA); |
290 |
setcolrgam(cvts.gamcor); |
291 |
if (CHK(C_XYZE)) { |
292 |
comprgb2xyzWBmat(cvts.cmat, |
293 |
CHK(C_PRIM) ? cvts.prims : stdprims); |
294 |
SET(C_CXFM); |
295 |
} |
296 |
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
297 |
hi != 3) |
298 |
quiterr("unsupported samples per pixel for RGB"); |
299 |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi)) |
300 |
hi = -1; |
301 |
switch (hi) { |
302 |
case 8: |
303 |
cvts.tf = RGB2Colr; |
304 |
break; |
305 |
case 16: |
306 |
cvts.tf = RRGGBB2Color; |
307 |
SET(C_RFLT|C_TWRD); |
308 |
break; |
309 |
case 32: |
310 |
cvts.tf = RfGfBf2Color; |
311 |
SET(C_RFLT|C_TFLT); |
312 |
break; |
313 |
default: |
314 |
quiterr("unsupported bits per sample for RGB"); |
315 |
} |
316 |
break; |
317 |
case PHOTOMETRIC_MINISBLACK: |
318 |
SET(C_GRY|C_GAMMA); |
319 |
setcolrgam(cvts.gamcor); |
320 |
cvts.pconf = PLANARCONFIG_CONTIG; |
321 |
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
322 |
hi != 1) |
323 |
quiterr("unsupported samples per pixel for greyscale"); |
324 |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi)) |
325 |
hi = -1; |
326 |
switch (hi) { |
327 |
case 8: |
328 |
cvts.tf = Gry2Colr; |
329 |
break; |
330 |
case 16: |
331 |
cvts.tf = GGry2Color; |
332 |
SET(C_RFLT|C_TWRD); |
333 |
break; |
334 |
case 32: |
335 |
cvts.tf = Gryf2Color; |
336 |
SET(C_RFLT|C_TFLT); |
337 |
break; |
338 |
default: |
339 |
quiterr("unsupported bits per sample for Gray"); |
340 |
} |
341 |
break; |
342 |
default: |
343 |
quiterr("unsupported photometric type"); |
344 |
break; |
345 |
} |
346 |
|
347 |
if (!TIFFGetField(cvts.tif, TIFFTAG_IMAGEWIDTH, &cvts.xmax) || |
348 |
!TIFFGetField(cvts.tif, TIFFTAG_IMAGELENGTH, &cvts.ymax)) |
349 |
quiterr("unknown input image resolution"); |
350 |
|
351 |
if (!TIFFGetField(cvts.tif, TIFFTAG_STONITS, &cvts.stonits)) |
352 |
cvts.stonits = 1.; |
353 |
|
354 |
if (!TIFFGetField(cvts.tif, TIFFTAG_DATETIME, &cp)) |
355 |
cvts.capdate[0] = '\0'; |
356 |
else { |
357 |
strncpy(cvts.capdate, cp, 19); |
358 |
cvts.capdate[19] = '\0'; |
359 |
} |
360 |
if (!TIFFGetField(cvts.tif, TIFFTAG_ARTIST, &cp)) |
361 |
cvts.owner[0] = '\0'; |
362 |
else { |
363 |
strncpy(cvts.owner, cp, sizeof(cvts.owner)); |
364 |
cvts.owner[sizeof(cvts.owner)-1] = '\0'; |
365 |
} |
366 |
/* add to Radiance header */ |
367 |
if (cvts.pixrat < .99 || cvts.pixrat > 1.01) |
368 |
fputaspect(cvts.pixrat, cvts.rfp); |
369 |
if (CHK(C_XYZE)) { |
370 |
fputexpos(pow(2.,(double)cvts.bradj)/cvts.stonits, cvts.rfp); |
371 |
fputformat(CIEFMT, cvts.rfp); |
372 |
} else { |
373 |
if (CHK(C_PRIM)) |
374 |
fputprims(cvts.prims, cvts.rfp); |
375 |
fputexpos(WHTEFFICACY*pow(2.,(double)cvts.bradj)/cvts.stonits, |
376 |
cvts.rfp); |
377 |
fputformat(COLRFMT, cvts.rfp); |
378 |
} |
379 |
if (cvts.capdate[0]) |
380 |
fprintf(cvts.rfp, "%s %s\n", TMSTR, cvts.capdate); |
381 |
if (cvts.owner[0]) |
382 |
fprintf(cvts.rfp, "%s %s\n", OWNSTR, cvts.owner); |
383 |
|
384 |
allocbufs(); /* allocate scanline buffers */ |
385 |
} |
386 |
|
387 |
|
388 |
tiff2ra(ac, av) /* convert TIFF image to Radiance picture */ |
389 |
int ac; |
390 |
char *av[]; |
391 |
{ |
392 |
int32 y; |
393 |
/* open TIFF input */ |
394 |
if ((cvts.tif = TIFFOpen(av[ac], "r")) == NULL) |
395 |
quiterr("cannot open TIFF input"); |
396 |
/* open Radiance output */ |
397 |
if (av[ac+1] == NULL || !strcmp(av[ac+1], "-")) |
398 |
cvts.rfp = stdout; |
399 |
else if ((cvts.rfp = fopen(av[ac+1], "w")) == NULL) |
400 |
quiterr("cannot open Radiance output picture"); |
401 |
/* start output header */ |
402 |
newheader("RADIANCE", cvts.rfp); |
403 |
printargs(ac, av, cvts.rfp); |
404 |
|
405 |
initfromtif(); /* initialize conversion */ |
406 |
|
407 |
fputc('\n', cvts.rfp); /* finish Radiance header */ |
408 |
fputresolu(pixorder(), (int)cvts.xmax, (int)cvts.ymax, cvts.rfp); |
409 |
|
410 |
for (y = 0; y < cvts.ymax; y++) /* convert image */ |
411 |
(*cvts.tf)(y); |
412 |
/* clean up */ |
413 |
fclose(cvts.rfp); |
414 |
TIFFClose(cvts.tif); |
415 |
} |
416 |
|
417 |
|
418 |
static int |
419 |
headline( /* process Radiance input header line */ |
420 |
char *s, |
421 |
void *p |
422 |
) |
423 |
{ |
424 |
static int tmstrlen = 0; |
425 |
static int ownstrlen = 0; |
426 |
char fmt[32]; |
427 |
|
428 |
if (!tmstrlen) |
429 |
tmstrlen = strlen(TMSTR); |
430 |
if (!ownstrlen) |
431 |
ownstrlen = strlen(OWNSTR); |
432 |
if (formatval(fmt, s)) { |
433 |
if (!strcmp(fmt, COLRFMT)) |
434 |
CLR(C_XYZE); |
435 |
else if (!strcmp(fmt, CIEFMT)) |
436 |
SET(C_XYZE); |
437 |
else |
438 |
quiterr("unrecognized input picture format"); |
439 |
return(1); |
440 |
} |
441 |
if (isexpos(s)) { |
442 |
cvts.stonits /= exposval(s); |
443 |
return(1); |
444 |
} |
445 |
if (isaspect(s)) { |
446 |
cvts.pixrat *= aspectval(s); |
447 |
return(1); |
448 |
} |
449 |
if (isprims(s)) { |
450 |
primsval(cvts.prims, s); |
451 |
SET(C_PRIM); |
452 |
return(1); |
453 |
} |
454 |
if (isdate(s)) { |
455 |
if (s[tmstrlen] == ' ') |
456 |
strncpy(cvts.capdate, s+tmstrlen+1, 19); |
457 |
else |
458 |
strncpy(cvts.capdate, s+tmstrlen, 19); |
459 |
cvts.capdate[19] = '\0'; |
460 |
return(1); |
461 |
} |
462 |
if (!strncmp(s, OWNSTR, ownstrlen)) { |
463 |
register char *cp = s + ownstrlen; |
464 |
|
465 |
while (isspace(*cp)) |
466 |
++cp; |
467 |
strncpy(cvts.owner, cp, sizeof(cvts.owner)); |
468 |
cvts.owner[sizeof(cvts.owner)-1] = '\0'; |
469 |
for (cp = cvts.owner; *cp; cp++) |
470 |
; |
471 |
while (cp > cvts.owner && isspace(cp[-1])) |
472 |
*--cp = '\0'; |
473 |
return(1); |
474 |
} |
475 |
return(0); |
476 |
} |
477 |
|
478 |
|
479 |
initfromrad() /* initialize input from a Radiance picture */ |
480 |
{ |
481 |
int i1, i2, po; |
482 |
/* read Radiance header */ |
483 |
CLR(C_RFLT|C_XYZE|C_PRIM|C_GAMMA|C_CXFM); |
484 |
cvts.capdate[0] = '\0'; |
485 |
cvts.owner[0] = '\0'; |
486 |
cvts.stonits = 1.; |
487 |
cvts.pixrat = 1.; |
488 |
cvts.pconf = PLANARCONFIG_CONTIG; |
489 |
getheader(cvts.rfp, headline, NULL); |
490 |
if ((po = fgetresolu(&i1, &i2, cvts.rfp)) < 0) |
491 |
quiterr("bad Radiance picture"); |
492 |
cvts.xmax = i1; cvts.ymax = i2; |
493 |
for (i1 = 0; i1 < 8; i1++) /* interpret orientation */ |
494 |
if (ortab[i1] == po) { |
495 |
cvts.orient = i1 + 1; |
496 |
break; |
497 |
} |
498 |
if (i1 >= 8) |
499 |
quiterr("internal error 1 in initfromrad"); |
500 |
if (!(po & YMAJOR)) |
501 |
cvts.pixrat = 1./cvts.pixrat; |
502 |
if (!CHK(C_XYZE)) |
503 |
cvts.stonits *= WHTEFFICACY; |
504 |
/* set up conversion */ |
505 |
TIFFSetField(cvts.tif, TIFFTAG_COMPRESSION, cvts.comp); |
506 |
TIFFSetField(cvts.tif, TIFFTAG_PHOTOMETRIC, cvts.phot); |
507 |
|
508 |
switch (cvts.phot) { |
509 |
case PHOTOMETRIC_LOGLUV: |
510 |
SET(C_RFLT|C_TFLT); |
511 |
CLR(C_GRY|C_TWRD); |
512 |
if (!CHK(C_XYZE)) { |
513 |
comprgb2xyzWBmat(cvts.cmat, |
514 |
CHK(C_PRIM) ? cvts.prims : stdprims); |
515 |
SET(C_CXFM); |
516 |
} |
517 |
if (cvts.comp != COMPRESSION_SGILOG && |
518 |
cvts.comp != COMPRESSION_SGILOG24) |
519 |
quiterr("internal error 2 in initfromrad"); |
520 |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
521 |
SGILOGDATAFMT_FLOAT); |
522 |
cvts.tf = Color2Luv; |
523 |
break; |
524 |
case PHOTOMETRIC_LOGL: |
525 |
SET(C_GRY|C_RFLT|C_TFLT); |
526 |
CLR(C_TWRD); |
527 |
if (cvts.comp != COMPRESSION_SGILOG) |
528 |
quiterr("internal error 3 in initfromrad"); |
529 |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
530 |
SGILOGDATAFMT_FLOAT); |
531 |
cvts.tf = Color2L; |
532 |
break; |
533 |
case PHOTOMETRIC_RGB: |
534 |
SET(C_GAMMA|C_GAMUT); |
535 |
CLR(C_GRY); |
536 |
setcolrgam(cvts.gamcor); |
537 |
if (CHK(C_XYZE)) { |
538 |
compxyz2rgbWBmat(cvts.cmat, |
539 |
CHK(C_PRIM) ? cvts.prims : stdprims); |
540 |
SET(C_CXFM); |
541 |
} |
542 |
if (CHK(C_PRIM)) { |
543 |
TIFFSetField(cvts.tif, TIFFTAG_PRIMARYCHROMATICITIES, |
544 |
(float *)cvts.prims); |
545 |
TIFFSetField(cvts.tif, TIFFTAG_WHITEPOINT, |
546 |
(float *)cvts.prims[WHT]); |
547 |
} |
548 |
if (CHK(C_TWRD)) { |
549 |
cvts.tf = Color2RRGGBB; |
550 |
SET(C_RFLT); |
551 |
} else if (CHK(C_TFLT)) { |
552 |
TIFFSetField(cvts.tif, TIFFTAG_SAMPLEFORMAT, |
553 |
SAMPLEFORMAT_IEEEFP); |
554 |
cvts.tf = Color2RfGfBf; |
555 |
SET(C_RFLT); |
556 |
} else |
557 |
cvts.tf = Colr2RGB; |
558 |
break; |
559 |
case PHOTOMETRIC_MINISBLACK: |
560 |
SET(C_GRY|C_GAMMA|C_GAMUT); |
561 |
setcolrgam(cvts.gamcor); |
562 |
if (CHK(C_TWRD)) { |
563 |
cvts.tf = Color2GGry; |
564 |
SET(C_RFLT); |
565 |
} else if (CHK(C_TFLT)) { |
566 |
TIFFSetField(cvts.tif, TIFFTAG_SAMPLEFORMAT, |
567 |
SAMPLEFORMAT_IEEEFP); |
568 |
cvts.tf = Color2Gryf; |
569 |
SET(C_RFLT); |
570 |
} else |
571 |
cvts.tf = Colr2Gry; |
572 |
break; |
573 |
default: |
574 |
quiterr("internal error 4 in initfromrad"); |
575 |
break; |
576 |
} |
577 |
/* set other TIFF fields */ |
578 |
TIFFSetField(cvts.tif, TIFFTAG_IMAGEWIDTH, cvts.xmax); |
579 |
TIFFSetField(cvts.tif, TIFFTAG_IMAGELENGTH, cvts.ymax); |
580 |
TIFFSetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, CHK(C_GRY) ? 1 : 3); |
581 |
TIFFSetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, |
582 |
CHK(C_TFLT) ? 32 : CHK(C_TWRD) ? 16 : 8); |
583 |
TIFFSetField(cvts.tif, TIFFTAG_XRESOLUTION, 72.); |
584 |
TIFFSetField(cvts.tif, TIFFTAG_YRESOLUTION, 72./cvts.pixrat); |
585 |
TIFFSetField(cvts.tif, TIFFTAG_ORIENTATION, cvts.orient); |
586 |
TIFFSetField(cvts.tif, TIFFTAG_RESOLUTIONUNIT, 2); |
587 |
TIFFSetField(cvts.tif, TIFFTAG_PLANARCONFIG, cvts.pconf); |
588 |
TIFFSetField(cvts.tif, TIFFTAG_STONITS, |
589 |
cvts.stonits/pow(2.,(double)cvts.bradj)); |
590 |
if (cvts.capdate[0]) |
591 |
TIFFSetField(cvts.tif, TIFFTAG_DATETIME, cvts.capdate); |
592 |
if (cvts.owner[0]) |
593 |
TIFFSetField(cvts.tif, TIFFTAG_ARTIST, cvts.owner); |
594 |
if (cvts.comp == COMPRESSION_NONE) |
595 |
i1 = TIFFScanlineSize(cvts.tif); |
596 |
else |
597 |
i1 = 3*cvts.xmax; /* conservative guess */ |
598 |
i2 = 8192/i1; /* compute good strip size */ |
599 |
if (i2 < 1) i2 = 1; |
600 |
TIFFSetField(cvts.tif, TIFFTAG_ROWSPERSTRIP, (uint32)i2); |
601 |
|
602 |
allocbufs(); /* allocate scanline buffers */ |
603 |
} |
604 |
|
605 |
|
606 |
ra2tiff(ac, av) /* convert Radiance picture to TIFF image */ |
607 |
int ac; |
608 |
char *av[]; |
609 |
{ |
610 |
uint32 y; |
611 |
/* open Radiance file */ |
612 |
if (!strcmp(av[ac], "-")) |
613 |
cvts.rfp = stdin; |
614 |
else if ((cvts.rfp = fopen(av[ac], "r")) == NULL) |
615 |
quiterr("cannot open Radiance input picture"); |
616 |
/* open TIFF file */ |
617 |
if ((cvts.tif = TIFFOpen(av[ac+1], "w")) == NULL) |
618 |
quiterr("cannot open TIFF output"); |
619 |
|
620 |
initfromrad(); /* initialize conversion */ |
621 |
|
622 |
for (y = 0; y < cvts.ymax; y++) /* convert image */ |
623 |
(*cvts.tf)(y); |
624 |
/* clean up */ |
625 |
TIFFClose(cvts.tif); |
626 |
fclose(cvts.rfp); |
627 |
} |
628 |
|
629 |
|
630 |
void |
631 |
Luv2Color(y) /* read/convert/write Luv->COLOR scanline */ |
632 |
uint32 y; |
633 |
{ |
634 |
register int x; |
635 |
|
636 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT)) |
637 |
quiterr("internal error 1 in Luv2Color"); |
638 |
|
639 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
640 |
quiterr("error reading TIFF input"); |
641 |
/* also works for float RGB */ |
642 |
for (x = cvts.xmax; x--; ) { |
643 |
setcolor(cvts.r.colors[x], |
644 |
cvts.t.fp[3*x], |
645 |
cvts.t.fp[3*x + 1], |
646 |
cvts.t.fp[3*x + 2]); |
647 |
if (CHK(C_CXFM)) |
648 |
colortrans(cvts.r.colors[x], cvts.cmat, |
649 |
cvts.r.colors[x]); |
650 |
if (CHK(C_GAMUT)) |
651 |
clipgamut(cvts.r.colors[x], cvts.t.fp[3*x + 1], |
652 |
CGAMUT_LOWER, cblack, cwhite); |
653 |
} |
654 |
if (cvts.bradj) { |
655 |
double m = pow(2.,(double)cvts.bradj); |
656 |
for (x = cvts.xmax; x--; ) |
657 |
scalecolor(cvts.r.colors[x], m); |
658 |
} |
659 |
|
660 |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
661 |
quiterr("error writing Radiance picture"); |
662 |
} |
663 |
|
664 |
|
665 |
void |
666 |
RRGGBB2Color(y) /* read/convert/write RGB16->COLOR scanline */ |
667 |
uint32 y; |
668 |
{ |
669 |
int dogamma = (cvts.gamcor < 0.99) | (cvts.gamcor > 1.01); |
670 |
register double d; |
671 |
register int x; |
672 |
|
673 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_TWRD|C_RFLT)) |
674 |
quiterr("internal error 1 in RRGGBB2Color"); |
675 |
|
676 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
677 |
quiterr("error reading TIFF input"); |
678 |
|
679 |
for (x = cvts.xmax; x--; ) { |
680 |
d = (cvts.t.wp[3*x] + 0.5)*(1./(1L<<16)); |
681 |
if (dogamma) d = pow(d, cvts.gamcor); |
682 |
colval(cvts.r.colors[x],RED) = d; |
683 |
d = (cvts.t.wp[3*x + 1] + 0.5)*(1./(1L<<16)); |
684 |
if (dogamma) d = pow(d, cvts.gamcor); |
685 |
colval(cvts.r.colors[x],GRN) = d; |
686 |
d = (cvts.t.wp[3*x + 2] + 0.5)*(1./(1L<<16)); |
687 |
if (dogamma) d = pow(d, cvts.gamcor); |
688 |
colval(cvts.r.colors[x],BLU) = d; |
689 |
if (CHK(C_CXFM)) |
690 |
colortrans(cvts.r.colors[x], cvts.cmat, |
691 |
cvts.r.colors[x]); |
692 |
if (CHK(C_GAMUT)) |
693 |
clipgamut(cvts.r.colors[x], cvts.t.fp[3*x + 1], |
694 |
CGAMUT_LOWER, cblack, cwhite); |
695 |
} |
696 |
if (cvts.bradj) { |
697 |
d = pow(2.,(double)cvts.bradj); |
698 |
for (x = cvts.xmax; x--; ) |
699 |
scalecolor(cvts.r.colors[x], d); |
700 |
} |
701 |
|
702 |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
703 |
quiterr("error writing Radiance picture"); |
704 |
} |
705 |
|
706 |
|
707 |
void |
708 |
L2Color(y) /* read/convert/write Lfloat->COLOR scanline */ |
709 |
uint32 y; |
710 |
{ |
711 |
float m = pow(2., (double)cvts.bradj); |
712 |
register int x; |
713 |
|
714 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
715 |
quiterr("internal error 1 in L2Color"); |
716 |
|
717 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
718 |
quiterr("error reading TIFF input"); |
719 |
/* also works for float greyscale */ |
720 |
for (x = cvts.xmax; x--; ) { |
721 |
register float f = cvts.t.fp[x]; |
722 |
if (cvts.bradj) f *= m; |
723 |
setcolor(cvts.r.colors[x], f, f, f); |
724 |
} |
725 |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
726 |
quiterr("error writing Radiance picture"); |
727 |
} |
728 |
|
729 |
|
730 |
void |
731 |
RGB2Colr(y) /* read/convert/write RGB->COLR scanline */ |
732 |
uint32 y; |
733 |
{ |
734 |
COLOR ctmp; |
735 |
register int x; |
736 |
|
737 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY)) |
738 |
quiterr("internal error 1 in RGB2Colr"); |
739 |
|
740 |
if (cvts.pconf == PLANARCONFIG_CONTIG) { |
741 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
742 |
goto readerr; |
743 |
for (x = cvts.xmax; x--; ) { |
744 |
cvts.r.colrs[x][RED] = cvts.t.bp[3*x]; |
745 |
cvts.r.colrs[x][GRN] = cvts.t.bp[3*x + 1]; |
746 |
cvts.r.colrs[x][BLU] = cvts.t.bp[3*x + 2]; |
747 |
} |
748 |
} else { |
749 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
750 |
goto readerr; |
751 |
if (TIFFReadScanline(cvts.tif, |
752 |
(tdata_t)(cvts.t.bp + cvts.xmax), y, 1) < 0) |
753 |
goto readerr; |
754 |
if (TIFFReadScanline(cvts.tif, |
755 |
(tdata_t)(cvts.t.bp + 2*cvts.xmax), y, 2) < 0) |
756 |
goto readerr; |
757 |
for (x = cvts.xmax; x--; ) { |
758 |
cvts.r.colrs[x][RED] = cvts.t.bp[x]; |
759 |
cvts.r.colrs[x][GRN] = cvts.t.bp[cvts.xmax + x]; |
760 |
cvts.r.colrs[x][BLU] = cvts.t.bp[2*cvts.xmax + x]; |
761 |
} |
762 |
} |
763 |
|
764 |
gambs_colrs(cvts.r.colrs, cvts.xmax); |
765 |
if (CHK(C_CXFM)) |
766 |
for (x = cvts.xmax; x--; ) { |
767 |
colr_color(ctmp, cvts.r.colrs[x]); |
768 |
colortrans(ctmp, cvts.cmat, ctmp); |
769 |
if (CHK(C_GAMUT)) /* !CHK(C_XYZE) */ |
770 |
clipgamut(ctmp, bright(ctmp), CGAMUT_LOWER, |
771 |
cblack, cwhite); |
772 |
setcolr(cvts.r.colrs[x], colval(ctmp,RED), |
773 |
colval(ctmp,GRN), colval(ctmp,BLU)); |
774 |
} |
775 |
if (cvts.bradj) |
776 |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
777 |
|
778 |
if (fwritecolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
779 |
quiterr("error writing Radiance picture"); |
780 |
return; |
781 |
readerr: |
782 |
quiterr("error reading TIFF input"); |
783 |
} |
784 |
|
785 |
|
786 |
void |
787 |
Gry2Colr(y) /* read/convert/write G8->COLR scanline */ |
788 |
uint32 y; |
789 |
{ |
790 |
register int x; |
791 |
|
792 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != C_GRY) |
793 |
quiterr("internal error 1 in Gry2Colr"); |
794 |
|
795 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
796 |
quiterr("error reading TIFF input"); |
797 |
|
798 |
for (x = cvts.xmax; x--; ) |
799 |
cvts.r.colrs[x][RED] = |
800 |
cvts.r.colrs[x][GRN] = |
801 |
cvts.r.colrs[x][BLU] = cvts.t.bp[x]; |
802 |
|
803 |
gambs_colrs(cvts.r.colrs, cvts.xmax); |
804 |
if (cvts.bradj) |
805 |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
806 |
|
807 |
if (fwritecolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
808 |
quiterr("error writing Radiance picture"); |
809 |
} |
810 |
|
811 |
|
812 |
void |
813 |
GGry2Color(y) /* read/convert/write G16->COLOR scanline */ |
814 |
uint32 y; |
815 |
{ |
816 |
int dogamma = (cvts.gamcor < 0.99) | (cvts.gamcor > 1.01); |
817 |
double m; |
818 |
register double d; |
819 |
register int x; |
820 |
|
821 |
if (CHK(C_TFLT|C_TWRD|C_GRY|C_RFLT) != (C_GRY|C_RFLT|C_TWRD)) |
822 |
quiterr("internal error 1 in GGry2Color"); |
823 |
|
824 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
825 |
quiterr("error reading TIFF input"); |
826 |
|
827 |
if (cvts.bradj) |
828 |
m = pow(2., (double)cvts.bradj); |
829 |
for (x = cvts.xmax; x--; ) { |
830 |
d = (cvts.t.wp[x] + 0.5)*(1./(1L<<16)); |
831 |
if (dogamma) d = pow(d, cvts.gamcor); |
832 |
if (cvts.bradj) d *= m; |
833 |
colval(cvts.r.colors[x],RED) = |
834 |
colval(cvts.r.colors[x],GRN) = |
835 |
colval(cvts.r.colors[x],BLU) = d; |
836 |
} |
837 |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
838 |
quiterr("error writing Radiance picture"); |
839 |
} |
840 |
|
841 |
|
842 |
void |
843 |
Color2GGry(y) /* read/convert/write COLOR->G16 scanline */ |
844 |
uint32 y; |
845 |
{ |
846 |
int dogamma = (cvts.gamcor < 0.99) | (cvts.gamcor > 1.01); |
847 |
float m = pow(2.,(double)cvts.bradj); |
848 |
register int x; |
849 |
|
850 |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TWRD|C_GRY)) |
851 |
quiterr("internal error 1 in Color2GGry"); |
852 |
|
853 |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
854 |
quiterr("error reading Radiance picture"); |
855 |
|
856 |
for (x = cvts.xmax; x--; ) { |
857 |
register float f = m*( CHK(C_XYZE) ? |
858 |
colval(cvts.r.colors[x],CIEY) |
859 |
: bright(cvts.r.colors[x]) ); |
860 |
if (f <= 0) |
861 |
cvts.t.wp[x] = 0; |
862 |
else if (f >= 1) |
863 |
cvts.t.wp[x] = 0xffff; |
864 |
else if (dogamma) |
865 |
cvts.t.wp[x] = (int)((float)(1L<<16) * |
866 |
pow(f, 1./cvts.gamcor)); |
867 |
else |
868 |
cvts.t.wp[x] = (int)((float)(1L<<16) * f); |
869 |
} |
870 |
|
871 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
872 |
quiterr("error writing TIFF output"); |
873 |
} |
874 |
|
875 |
|
876 |
void |
877 |
Color2L(y) /* read/convert/write COLOR->Lfloat scanline */ |
878 |
uint32 y; |
879 |
{ |
880 |
float m = pow(2.,(double)cvts.bradj); |
881 |
register int x; |
882 |
|
883 |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
884 |
quiterr("internal error 1 in Color2L"); |
885 |
|
886 |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
887 |
quiterr("error reading Radiance picture"); |
888 |
|
889 |
for (x = cvts.xmax; x--; ) |
890 |
cvts.t.fp[x] = m*( CHK(C_XYZE) ? colval(cvts.r.colors[x],CIEY) |
891 |
: bright(cvts.r.colors[x]) ); |
892 |
|
893 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
894 |
quiterr("error writing TIFF output"); |
895 |
} |
896 |
|
897 |
|
898 |
void |
899 |
Color2Luv(y) /* read/convert/write COLOR->Luv scanline */ |
900 |
uint32 y; |
901 |
{ |
902 |
register int x; |
903 |
|
904 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT)) |
905 |
quiterr("internal error 1 in Color2Luv"); |
906 |
|
907 |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
908 |
quiterr("error reading Radiance picture"); |
909 |
|
910 |
if (CHK(C_CXFM)) |
911 |
for (x = cvts.xmax; x--; ) |
912 |
colortrans(cvts.r.colors[x], cvts.cmat, |
913 |
cvts.r.colors[x]); |
914 |
if (cvts.bradj) { |
915 |
double m = pow(2.,(double)cvts.bradj); |
916 |
for (x = cvts.xmax; x--; ) |
917 |
scalecolor(cvts.r.colors[x], m); |
918 |
} |
919 |
/* also works for float RGB */ |
920 |
for (x = cvts.xmax; x--; ) { |
921 |
cvts.t.fp[3*x] = colval(cvts.r.colors[x],CIEX); |
922 |
cvts.t.fp[3*x+1] = colval(cvts.r.colors[x],CIEY); |
923 |
cvts.t.fp[3*x+2] = colval(cvts.r.colors[x],CIEZ); |
924 |
} |
925 |
|
926 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
927 |
quiterr("error writing TIFF output"); |
928 |
} |
929 |
|
930 |
|
931 |
void |
932 |
Color2RRGGBB(y) /* read/convert/write COLOR->RGB16 scanline */ |
933 |
uint32 y; |
934 |
{ |
935 |
int dogamma = (cvts.gamcor < 0.99) | (cvts.gamcor > 1.01); |
936 |
float m = pow(2.,(double)cvts.bradj); |
937 |
register int x, i; |
938 |
|
939 |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TWRD)) |
940 |
quiterr("internal error 1 in Color2RRGGBB"); |
941 |
|
942 |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
943 |
quiterr("error reading Radiance picture"); |
944 |
|
945 |
for (x = cvts.xmax; x--; ) |
946 |
for (i = 3; i--; ) { |
947 |
register float f = m*colval(cvts.r.colors[x],i); |
948 |
if (f <= 0) |
949 |
cvts.t.wp[3*x + i] = 0; |
950 |
else if (f >= 1) |
951 |
cvts.t.wp[3*x + i] = 0xffff; |
952 |
else if (dogamma) |
953 |
cvts.t.wp[3*x + i] = (int)((float)(1L<<16) * |
954 |
pow(f, 1./cvts.gamcor)); |
955 |
else |
956 |
cvts.t.wp[3*x + i] = (int)((float)(1L<<16)*f); |
957 |
} |
958 |
|
959 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
960 |
quiterr("error writing TIFF output"); |
961 |
} |
962 |
|
963 |
|
964 |
void |
965 |
Colr2Gry(y) /* read/convert/write COLR->RGB scanline */ |
966 |
uint32 y; |
967 |
{ |
968 |
register int x; |
969 |
|
970 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != C_GRY) |
971 |
quiterr("internal error 1 in Colr2Gry"); |
972 |
|
973 |
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
974 |
quiterr("error reading Radiance picture"); |
975 |
|
976 |
if (cvts.bradj) |
977 |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
978 |
for (x = cvts.xmax; x--; ) |
979 |
colval(cvts.r.colrs[x],CIEY) = normbright(cvts.r.colrs[x]); |
980 |
colrs_gambs(cvts.r.colrs, cvts.xmax); |
981 |
|
982 |
for (x = cvts.xmax; x--; ) |
983 |
cvts.t.bp[x] = colval(cvts.r.colrs[x],CIEY); |
984 |
|
985 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
986 |
quiterr("error writing TIFF output"); |
987 |
} |
988 |
|
989 |
|
990 |
void |
991 |
Colr2RGB(y) /* read/convert/write COLR->RGB scanline */ |
992 |
uint32 y; |
993 |
{ |
994 |
COLOR ctmp; |
995 |
register int x; |
996 |
|
997 |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY)) |
998 |
quiterr("internal error 1 in Colr2RGB"); |
999 |
|
1000 |
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
1001 |
quiterr("error reading Radiance picture"); |
1002 |
|
1003 |
if (cvts.bradj) |
1004 |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
1005 |
if (CHK(C_CXFM)) |
1006 |
for (x = cvts.xmax; x--; ) { |
1007 |
colr_color(ctmp, cvts.r.colrs[x]); |
1008 |
colortrans(ctmp, cvts.cmat, ctmp); |
1009 |
if (CHK(C_GAMUT)) |
1010 |
clipgamut(ctmp, bright(ctmp), CGAMUT, |
1011 |
cblack, cwhite); |
1012 |
setcolr(cvts.r.colrs[x], colval(ctmp,RED), |
1013 |
colval(ctmp,GRN), colval(ctmp,BLU)); |
1014 |
} |
1015 |
colrs_gambs(cvts.r.colrs, cvts.xmax); |
1016 |
|
1017 |
for (x = cvts.xmax; x--; ) { |
1018 |
cvts.t.bp[3*x] = cvts.r.colrs[x][RED]; |
1019 |
cvts.t.bp[3*x+1] = cvts.r.colrs[x][GRN]; |
1020 |
cvts.t.bp[3*x+2] = cvts.r.colrs[x][BLU]; |
1021 |
} |
1022 |
|
1023 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
1024 |
quiterr("error writing TIFF output"); |
1025 |
} |