1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: ra_tiff.c,v 2.30 2005/03/22 15:26:05 greg 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 |
typedef void colcvf_t(uint32 y); |
34 |
|
35 |
struct { |
36 |
uint16 flags; /* conversion flags (defined above) */ |
37 |
char capdate[20]; /* capture date/time */ |
38 |
char owner[256]; /* content owner */ |
39 |
uint16 comp; /* TIFF compression type */ |
40 |
uint16 phot; /* TIFF photometric type */ |
41 |
uint16 pconf; /* TIFF planar configuration */ |
42 |
float gamcor; /* gamma correction value */ |
43 |
short bradj; /* Radiance exposure adjustment (stops) */ |
44 |
uint16 orient; /* visual orientation (TIFF spec.) */ |
45 |
double stonits; /* input conversion to nits */ |
46 |
float pixrat; /* pixel aspect ratio */ |
47 |
FILE *rfp; /* Radiance stream pointer */ |
48 |
TIFF *tif; /* TIFF pointer */ |
49 |
uint32 xmax, ymax; /* image dimensions */ |
50 |
COLORMAT cmat; /* color transformation matrix */ |
51 |
RGBPRIMS prims; /* RGB primaries */ |
52 |
union { |
53 |
COLR *colrs; /* 4-byte ???E pointer */ |
54 |
COLOR *colors; /* float array pointer */ |
55 |
char *p; /* generic pointer */ |
56 |
} r; /* Radiance scanline */ |
57 |
union { |
58 |
uint8 *bp; /* byte pointer */ |
59 |
uint16 *wp; /* word pointer */ |
60 |
float *fp; /* float pointer */ |
61 |
char *p; /* generic pointer */ |
62 |
} t; /* TIFF scanline */ |
63 |
colcvf_t *tf; /* translation procedure */ |
64 |
} cvts = { /* conversion structure */ |
65 |
0, "", "", COMPRESSION_NONE, PHOTOMETRIC_RGB, |
66 |
PLANARCONFIG_CONTIG, GAMCOR, 0, 1, 1., 1., |
67 |
}; |
68 |
|
69 |
#define CHK(f) (cvts.flags & (f)) |
70 |
#define SET(f) (cvts.flags |= (f)) |
71 |
#define CLR(f) (cvts.flags &= ~(f)) |
72 |
#define TGL(f) (cvts.flags ^= (f)) |
73 |
|
74 |
static colcvf_t Luv2Color, L2Color, RGB2Colr, Gry2Colr; |
75 |
static colcvf_t Color2Luv, Color2L, Colr2RGB, Colr2Gry; |
76 |
static colcvf_t RRGGBB2Color, GGry2Color, Color2RRGGBB, Color2GGry; |
77 |
|
78 |
static gethfunc headline; |
79 |
static void quiterr(char *err); |
80 |
static void allocbufs(void); |
81 |
static void initfromtif(void); |
82 |
static void tiff2ra(int ac, char *av[]); |
83 |
static void initfromrad(void); |
84 |
static void ra2tiff(int ac, char *av[]); |
85 |
|
86 |
|
87 |
|
88 |
#define RfGfBf2Color Luv2Color |
89 |
#define Gryf2Color L2Color |
90 |
#define Color2Gryf Color2L |
91 |
#define Color2RfGfBf Color2Luv |
92 |
|
93 |
short ortab[8] = { /* orientation conversion table */ |
94 |
YMAJOR|YDECR, |
95 |
YMAJOR|YDECR|XDECR, |
96 |
YMAJOR|XDECR, |
97 |
YMAJOR, |
98 |
YDECR, |
99 |
XDECR|YDECR, |
100 |
XDECR, |
101 |
0 |
102 |
}; |
103 |
|
104 |
#define pixorder() ortab[cvts.orient-1] |
105 |
|
106 |
extern char TMSTR[]; /* "CAPDATE=" from header.c */ |
107 |
char OWNSTR[] = "OWNER="; |
108 |
|
109 |
char *progname; |
110 |
|
111 |
|
112 |
int |
113 |
main(int argc, char *argv[]) |
114 |
{ |
115 |
int reverse = 0; |
116 |
int i; |
117 |
|
118 |
progname = argv[0]; |
119 |
|
120 |
for (i = 1; i < argc; i++) |
121 |
if (argv[i][0] == '-') |
122 |
switch (argv[i][1]) { |
123 |
case 'g': /* gamma correction */ |
124 |
cvts.gamcor = atof(argv[++i]); |
125 |
break; |
126 |
case 'x': /* XYZE Radiance output */ |
127 |
TGL(C_XYZE); |
128 |
break; |
129 |
case 'z': /* LZW compressed output */ |
130 |
cvts.comp = COMPRESSION_LZW; |
131 |
break; |
132 |
case 'L': /* LogLuv 32-bit output */ |
133 |
cvts.comp = COMPRESSION_SGILOG; |
134 |
cvts.phot = PHOTOMETRIC_LOGLUV; |
135 |
break; |
136 |
case 'l': /* LogLuv 24-bit output */ |
137 |
cvts.comp = COMPRESSION_SGILOG24; |
138 |
cvts.phot = PHOTOMETRIC_LOGLUV; |
139 |
break; |
140 |
case 'w': /* 16-bit/primary output? */ |
141 |
TGL(C_TWRD); |
142 |
break; |
143 |
case 'f': /* IEEE float output? */ |
144 |
TGL(C_TFLT); |
145 |
break; |
146 |
case 'b': /* greyscale output? */ |
147 |
TGL(C_GRY); |
148 |
break; |
149 |
case 'e': /* exposure adjustment */ |
150 |
if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
151 |
goto userr; |
152 |
cvts.bradj = atoi(argv[++i]); |
153 |
break; |
154 |
case 'r': /* reverse conversion? */ |
155 |
reverse = !reverse; |
156 |
break; |
157 |
case '\0': |
158 |
goto doneopts; |
159 |
default: |
160 |
goto userr; |
161 |
} |
162 |
else |
163 |
break; |
164 |
doneopts: |
165 |
if (reverse) { |
166 |
|
167 |
if (i != argc-2 && i != argc-1) |
168 |
goto userr; |
169 |
|
170 |
tiff2ra(i, argv); |
171 |
|
172 |
} else { |
173 |
|
174 |
if (i != argc-2) |
175 |
goto userr; |
176 |
/* consistency checks */ |
177 |
if (CHK(C_GRY)) { |
178 |
if (cvts.phot == PHOTOMETRIC_RGB) |
179 |
cvts.phot = PHOTOMETRIC_MINISBLACK; |
180 |
else { |
181 |
cvts.phot = PHOTOMETRIC_LOGL; |
182 |
cvts.comp = COMPRESSION_SGILOG; |
183 |
} |
184 |
} |
185 |
if (CHK(C_TWRD|C_TFLT) == (C_TWRD|C_TFLT)) |
186 |
goto userr; |
187 |
|
188 |
ra2tiff(i, argv); |
189 |
} |
190 |
|
191 |
exit(0); |
192 |
userr: |
193 |
fprintf(stderr, |
194 |
"Usage: %s [-z|-L|-l|-f|-w][-b][-e +/-stops][-g gamma] {in.pic|-} out.tif\n", |
195 |
progname); |
196 |
fprintf(stderr, |
197 |
" Or: %s -r [-x][-e +/-stops][-g gamma] in.tif [out.pic|-]\n", |
198 |
progname); |
199 |
exit(1); |
200 |
} |
201 |
|
202 |
|
203 |
static void |
204 |
quiterr( /* print message and exit */ |
205 |
char *err |
206 |
) |
207 |
{ |
208 |
if (err != NULL) { |
209 |
fprintf(stderr, "%s: %s\n", progname, err); |
210 |
exit(1); |
211 |
} |
212 |
exit(0); |
213 |
} |
214 |
|
215 |
|
216 |
static void |
217 |
allocbufs(void) /* allocate scanline buffers */ |
218 |
{ |
219 |
int rsiz, tsiz; |
220 |
|
221 |
rsiz = CHK(C_RFLT) ? sizeof(COLOR) : sizeof(COLR); |
222 |
tsiz = (CHK(C_TFLT) ? sizeof(float) : |
223 |
CHK(C_TWRD) ? sizeof(uint16) : sizeof(uint8)) * |
224 |
(CHK(C_GRY) ? 1 : 3); |
225 |
cvts.r.p = (char *)malloc(rsiz*cvts.xmax); |
226 |
cvts.t.p = (char *)malloc(tsiz*cvts.xmax); |
227 |
if ((cvts.r.p == NULL) | (cvts.t.p == NULL)) |
228 |
quiterr("no memory to allocate scanline buffers"); |
229 |
} |
230 |
|
231 |
|
232 |
static void |
233 |
initfromtif(void) /* initialize conversion from TIFF input */ |
234 |
{ |
235 |
uint16 hi; |
236 |
char *cp; |
237 |
float *fa, f1, f2; |
238 |
|
239 |
CLR(C_GRY|C_GAMMA|C_PRIM|C_RFLT|C_TFLT|C_TWRD|C_CXFM); |
240 |
|
241 |
TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_PLANARCONFIG, &cvts.pconf); |
242 |
|
243 |
if (TIFFGetField(cvts.tif, TIFFTAG_PRIMARYCHROMATICITIES, &fa)) { |
244 |
cvts.prims[RED][CIEX] = fa[0]; |
245 |
cvts.prims[RED][CIEY] = fa[1]; |
246 |
cvts.prims[GRN][CIEX] = fa[2]; |
247 |
cvts.prims[GRN][CIEY] = fa[3]; |
248 |
cvts.prims[BLU][CIEX] = fa[4]; |
249 |
cvts.prims[BLU][CIEY] = fa[5]; |
250 |
cvts.prims[WHT][CIEX] = 1./3.; |
251 |
cvts.prims[WHT][CIEY] = 1./3.; |
252 |
if (TIFFGetField(cvts.tif, TIFFTAG_WHITEPOINT, &fa)) { |
253 |
cvts.prims[WHT][CIEX] = fa[0]; |
254 |
cvts.prims[WHT][CIEY] = fa[1]; |
255 |
} |
256 |
SET(C_PRIM); |
257 |
} |
258 |
|
259 |
if (!TIFFGetField(cvts.tif, TIFFTAG_COMPRESSION, &cvts.comp)) |
260 |
cvts.comp = COMPRESSION_NONE; |
261 |
|
262 |
if (TIFFGetField(cvts.tif, TIFFTAG_XRESOLUTION, &f1) && |
263 |
TIFFGetField(cvts.tif, TIFFTAG_YRESOLUTION, &f2)) |
264 |
cvts.pixrat = f1/f2; |
265 |
|
266 |
TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_ORIENTATION, &cvts.orient); |
267 |
|
268 |
if (!TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_PHOTOMETRIC, &cvts.phot)) |
269 |
quiterr("TIFF has unspecified photometric type"); |
270 |
|
271 |
switch (cvts.phot) { |
272 |
case PHOTOMETRIC_LOGLUV: |
273 |
SET(C_RFLT|C_TFLT); |
274 |
if (!CHK(C_XYZE)) { |
275 |
cpcolormat(cvts.cmat, xyz2rgbmat); |
276 |
SET(C_CXFM|C_GAMUT); |
277 |
} else if (cvts.comp == COMPRESSION_SGILOG) |
278 |
SET(C_GAMUT); /* may be outside XYZ gamut */ |
279 |
if (cvts.pconf != PLANARCONFIG_CONTIG) |
280 |
quiterr("cannot handle separate Luv planes"); |
281 |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
282 |
SGILOGDATAFMT_FLOAT); |
283 |
cvts.tf = Luv2Color; |
284 |
break; |
285 |
case PHOTOMETRIC_LOGL: |
286 |
SET(C_GRY|C_RFLT|C_TFLT|C_GAMUT); |
287 |
cvts.pconf = PLANARCONFIG_CONTIG; |
288 |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
289 |
SGILOGDATAFMT_FLOAT); |
290 |
cvts.tf = L2Color; |
291 |
break; |
292 |
case PHOTOMETRIC_YCBCR: |
293 |
if (cvts.comp == COMPRESSION_JPEG && |
294 |
cvts.pconf == PLANARCONFIG_CONTIG) { |
295 |
TIFFSetField(cvts.tif, TIFFTAG_JPEGCOLORMODE, |
296 |
JPEGCOLORMODE_RGB); |
297 |
cvts.phot = PHOTOMETRIC_RGB; |
298 |
} else |
299 |
quiterr("unsupported photometric type"); |
300 |
/* fall through */ |
301 |
case PHOTOMETRIC_RGB: |
302 |
SET(C_GAMMA); |
303 |
setcolrgam(cvts.gamcor); |
304 |
if (CHK(C_XYZE)) { |
305 |
comprgb2xyzWBmat(cvts.cmat, |
306 |
CHK(C_PRIM) ? cvts.prims : stdprims); |
307 |
SET(C_CXFM); |
308 |
} |
309 |
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
310 |
hi != 3) |
311 |
quiterr("unsupported samples per pixel for RGB"); |
312 |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi)) |
313 |
hi = -1; |
314 |
switch (hi) { |
315 |
case 8: |
316 |
cvts.tf = RGB2Colr; |
317 |
break; |
318 |
case 16: |
319 |
cvts.tf = RRGGBB2Color; |
320 |
SET(C_RFLT|C_TWRD); |
321 |
break; |
322 |
case 32: |
323 |
cvts.tf = RfGfBf2Color; |
324 |
SET(C_RFLT|C_TFLT); |
325 |
break; |
326 |
default: |
327 |
quiterr("unsupported bits per sample for RGB"); |
328 |
} |
329 |
break; |
330 |
case PHOTOMETRIC_MINISBLACK: |
331 |
SET(C_GRY|C_GAMMA); |
332 |
setcolrgam(cvts.gamcor); |
333 |
cvts.pconf = PLANARCONFIG_CONTIG; |
334 |
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
335 |
hi != 1) |
336 |
quiterr("unsupported samples per pixel for greyscale"); |
337 |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi)) |
338 |
hi = -1; |
339 |
switch (hi) { |
340 |
case 8: |
341 |
cvts.tf = Gry2Colr; |
342 |
break; |
343 |
case 16: |
344 |
cvts.tf = GGry2Color; |
345 |
SET(C_RFLT|C_TWRD); |
346 |
break; |
347 |
case 32: |
348 |
cvts.tf = Gryf2Color; |
349 |
SET(C_RFLT|C_TFLT); |
350 |
break; |
351 |
default: |
352 |
quiterr("unsupported bits per sample for Gray"); |
353 |
} |
354 |
break; |
355 |
default: |
356 |
quiterr("unsupported photometric type"); |
357 |
break; |
358 |
} |
359 |
|
360 |
if (!TIFFGetField(cvts.tif, TIFFTAG_IMAGEWIDTH, &cvts.xmax) || |
361 |
!TIFFGetField(cvts.tif, TIFFTAG_IMAGELENGTH, &cvts.ymax)) |
362 |
quiterr("unknown input image resolution"); |
363 |
|
364 |
if (!TIFFGetField(cvts.tif, TIFFTAG_STONITS, &cvts.stonits)) |
365 |
cvts.stonits = 1.; |
366 |
|
367 |
if (!TIFFGetField(cvts.tif, TIFFTAG_DATETIME, &cp)) |
368 |
cvts.capdate[0] = '\0'; |
369 |
else { |
370 |
strncpy(cvts.capdate, cp, 19); |
371 |
cvts.capdate[19] = '\0'; |
372 |
} |
373 |
if (!TIFFGetField(cvts.tif, TIFFTAG_ARTIST, &cp)) |
374 |
cvts.owner[0] = '\0'; |
375 |
else { |
376 |
strncpy(cvts.owner, cp, sizeof(cvts.owner)); |
377 |
cvts.owner[sizeof(cvts.owner)-1] = '\0'; |
378 |
} |
379 |
/* add to Radiance header */ |
380 |
if (cvts.pixrat < .99 || cvts.pixrat > 1.01) |
381 |
fputaspect(cvts.pixrat, cvts.rfp); |
382 |
if (CHK(C_XYZE)) { |
383 |
fputexpos(pow(2.,(double)cvts.bradj)/cvts.stonits, cvts.rfp); |
384 |
fputformat(CIEFMT, cvts.rfp); |
385 |
} else { |
386 |
if (CHK(C_PRIM)) |
387 |
fputprims(cvts.prims, cvts.rfp); |
388 |
fputexpos(WHTEFFICACY*pow(2.,(double)cvts.bradj)/cvts.stonits, |
389 |
cvts.rfp); |
390 |
fputformat(COLRFMT, cvts.rfp); |
391 |
} |
392 |
if (cvts.capdate[0]) |
393 |
fprintf(cvts.rfp, "%s %s\n", TMSTR, cvts.capdate); |
394 |
if (cvts.owner[0]) |
395 |
fprintf(cvts.rfp, "%s %s\n", OWNSTR, cvts.owner); |
396 |
|
397 |
allocbufs(); /* allocate scanline buffers */ |
398 |
} |
399 |
|
400 |
|
401 |
static void |
402 |
tiff2ra( /* convert TIFF image to Radiance picture */ |
403 |
int ac, |
404 |
char *av[] |
405 |
) |
406 |
{ |
407 |
int32 y; |
408 |
/* open TIFF input */ |
409 |
if ((cvts.tif = TIFFOpen(av[ac], "r")) == NULL) |
410 |
quiterr("cannot open TIFF input"); |
411 |
/* open Radiance output */ |
412 |
if (av[ac+1] == NULL || !strcmp(av[ac+1], "-")) |
413 |
cvts.rfp = stdout; |
414 |
else if ((cvts.rfp = fopen(av[ac+1], "w")) == NULL) |
415 |
quiterr("cannot open Radiance output picture"); |
416 |
/* start output header */ |
417 |
newheader("RADIANCE", cvts.rfp); |
418 |
printargs(ac, av, cvts.rfp); |
419 |
|
420 |
initfromtif(); /* initialize conversion */ |
421 |
|
422 |
fputc('\n', cvts.rfp); /* finish Radiance header */ |
423 |
fputresolu(pixorder(), (int)cvts.xmax, (int)cvts.ymax, cvts.rfp); |
424 |
|
425 |
for (y = 0; y < cvts.ymax; y++) /* convert image */ |
426 |
(*cvts.tf)(y); |
427 |
/* clean up */ |
428 |
fclose(cvts.rfp); |
429 |
TIFFClose(cvts.tif); |
430 |
} |
431 |
|
432 |
|
433 |
static int |
434 |
headline( /* process Radiance input header line */ |
435 |
char *s, |
436 |
void *p |
437 |
) |
438 |
{ |
439 |
static int tmstrlen = 0; |
440 |
static int ownstrlen = 0; |
441 |
char fmt[32]; |
442 |
|
443 |
if (!tmstrlen) |
444 |
tmstrlen = strlen(TMSTR); |
445 |
if (!ownstrlen) |
446 |
ownstrlen = strlen(OWNSTR); |
447 |
if (formatval(fmt, s)) { |
448 |
if (!strcmp(fmt, COLRFMT)) |
449 |
CLR(C_XYZE); |
450 |
else if (!strcmp(fmt, CIEFMT)) |
451 |
SET(C_XYZE); |
452 |
else |
453 |
quiterr("unrecognized input picture format"); |
454 |
return(1); |
455 |
} |
456 |
if (isexpos(s)) { |
457 |
cvts.stonits /= exposval(s); |
458 |
return(1); |
459 |
} |
460 |
if (isaspect(s)) { |
461 |
cvts.pixrat *= aspectval(s); |
462 |
return(1); |
463 |
} |
464 |
if (isprims(s)) { |
465 |
primsval(cvts.prims, s); |
466 |
SET(C_PRIM); |
467 |
return(1); |
468 |
} |
469 |
if (isdate(s)) { |
470 |
if (s[tmstrlen] == ' ') |
471 |
strncpy(cvts.capdate, s+tmstrlen+1, 19); |
472 |
else |
473 |
strncpy(cvts.capdate, s+tmstrlen, 19); |
474 |
cvts.capdate[19] = '\0'; |
475 |
return(1); |
476 |
} |
477 |
if (!strncmp(s, OWNSTR, ownstrlen)) { |
478 |
register char *cp = s + ownstrlen; |
479 |
|
480 |
while (isspace(*cp)) |
481 |
++cp; |
482 |
strncpy(cvts.owner, cp, sizeof(cvts.owner)); |
483 |
cvts.owner[sizeof(cvts.owner)-1] = '\0'; |
484 |
for (cp = cvts.owner; *cp; cp++) |
485 |
; |
486 |
while (cp > cvts.owner && isspace(cp[-1])) |
487 |
*--cp = '\0'; |
488 |
return(1); |
489 |
} |
490 |
return(0); |
491 |
} |
492 |
|
493 |
|
494 |
static void |
495 |
initfromrad(void) /* initialize input from a Radiance picture */ |
496 |
{ |
497 |
int i1, i2, po; |
498 |
/* read Radiance header */ |
499 |
CLR(C_RFLT|C_XYZE|C_PRIM|C_GAMMA|C_CXFM); |
500 |
cvts.capdate[0] = '\0'; |
501 |
cvts.owner[0] = '\0'; |
502 |
cvts.stonits = 1.; |
503 |
cvts.pixrat = 1.; |
504 |
cvts.pconf = PLANARCONFIG_CONTIG; |
505 |
getheader(cvts.rfp, headline, NULL); |
506 |
if ((po = fgetresolu(&i1, &i2, cvts.rfp)) < 0) |
507 |
quiterr("bad Radiance picture"); |
508 |
cvts.xmax = i1; cvts.ymax = i2; |
509 |
for (i1 = 0; i1 < 8; i1++) /* interpret orientation */ |
510 |
if (ortab[i1] == po) { |
511 |
cvts.orient = i1 + 1; |
512 |
break; |
513 |
} |
514 |
if (i1 >= 8) |
515 |
quiterr("internal error 1 in initfromrad"); |
516 |
if (!(po & YMAJOR)) |
517 |
cvts.pixrat = 1./cvts.pixrat; |
518 |
if (!CHK(C_XYZE)) |
519 |
cvts.stonits *= WHTEFFICACY; |
520 |
/* set up conversion */ |
521 |
TIFFSetField(cvts.tif, TIFFTAG_COMPRESSION, cvts.comp); |
522 |
TIFFSetField(cvts.tif, TIFFTAG_PHOTOMETRIC, cvts.phot); |
523 |
|
524 |
switch (cvts.phot) { |
525 |
case PHOTOMETRIC_LOGLUV: |
526 |
SET(C_RFLT|C_TFLT); |
527 |
CLR(C_GRY|C_TWRD); |
528 |
if (!CHK(C_XYZE)) { |
529 |
comprgb2xyzWBmat(cvts.cmat, |
530 |
CHK(C_PRIM) ? cvts.prims : stdprims); |
531 |
SET(C_CXFM); |
532 |
} |
533 |
if (cvts.comp != COMPRESSION_SGILOG && |
534 |
cvts.comp != COMPRESSION_SGILOG24) |
535 |
quiterr("internal error 2 in initfromrad"); |
536 |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
537 |
SGILOGDATAFMT_FLOAT); |
538 |
cvts.tf = Color2Luv; |
539 |
break; |
540 |
case PHOTOMETRIC_LOGL: |
541 |
SET(C_GRY|C_RFLT|C_TFLT); |
542 |
CLR(C_TWRD); |
543 |
if (cvts.comp != COMPRESSION_SGILOG) |
544 |
quiterr("internal error 3 in initfromrad"); |
545 |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
546 |
SGILOGDATAFMT_FLOAT); |
547 |
cvts.tf = Color2L; |
548 |
break; |
549 |
case PHOTOMETRIC_RGB: |
550 |
SET(C_GAMMA|C_GAMUT); |
551 |
CLR(C_GRY); |
552 |
setcolrgam(cvts.gamcor); |
553 |
if (CHK(C_XYZE)) { |
554 |
compxyz2rgbWBmat(cvts.cmat, |
555 |
CHK(C_PRIM) ? cvts.prims : stdprims); |
556 |
SET(C_CXFM); |
557 |
} |
558 |
if (CHK(C_PRIM)) { |
559 |
TIFFSetField(cvts.tif, TIFFTAG_PRIMARYCHROMATICITIES, |
560 |
(float *)cvts.prims); |
561 |
TIFFSetField(cvts.tif, TIFFTAG_WHITEPOINT, |
562 |
(float *)cvts.prims[WHT]); |
563 |
} |
564 |
if (CHK(C_TWRD)) { |
565 |
cvts.tf = Color2RRGGBB; |
566 |
SET(C_RFLT); |
567 |
} else if (CHK(C_TFLT)) { |
568 |
TIFFSetField(cvts.tif, TIFFTAG_SAMPLEFORMAT, |
569 |
SAMPLEFORMAT_IEEEFP); |
570 |
cvts.tf = Color2RfGfBf; |
571 |
SET(C_RFLT); |
572 |
CLR(C_GAMUT); |
573 |
} else |
574 |
cvts.tf = Colr2RGB; |
575 |
break; |
576 |
case PHOTOMETRIC_MINISBLACK: |
577 |
SET(C_GRY|C_GAMMA|C_GAMUT); |
578 |
setcolrgam(cvts.gamcor); |
579 |
if (CHK(C_TWRD)) { |
580 |
cvts.tf = Color2GGry; |
581 |
SET(C_RFLT); |
582 |
} else if (CHK(C_TFLT)) { |
583 |
TIFFSetField(cvts.tif, TIFFTAG_SAMPLEFORMAT, |
584 |
SAMPLEFORMAT_IEEEFP); |
585 |
cvts.tf = Color2Gryf; |
586 |
SET(C_RFLT); |
587 |
} else |
588 |
cvts.tf = Colr2Gry; |
589 |
break; |
590 |
default: |
591 |
quiterr("internal error 4 in initfromrad"); |
592 |
break; |
593 |
} |
594 |
/* set other TIFF fields */ |
595 |
TIFFSetField(cvts.tif, TIFFTAG_IMAGEWIDTH, cvts.xmax); |
596 |
TIFFSetField(cvts.tif, TIFFTAG_IMAGELENGTH, cvts.ymax); |
597 |
TIFFSetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, CHK(C_GRY) ? 1 : 3); |
598 |
TIFFSetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, |
599 |
CHK(C_TFLT) ? 32 : CHK(C_TWRD) ? 16 : 8); |
600 |
TIFFSetField(cvts.tif, TIFFTAG_XRESOLUTION, 72.); |
601 |
TIFFSetField(cvts.tif, TIFFTAG_YRESOLUTION, 72./cvts.pixrat); |
602 |
TIFFSetField(cvts.tif, TIFFTAG_ORIENTATION, cvts.orient); |
603 |
TIFFSetField(cvts.tif, TIFFTAG_RESOLUTIONUNIT, 2); |
604 |
TIFFSetField(cvts.tif, TIFFTAG_PLANARCONFIG, cvts.pconf); |
605 |
TIFFSetField(cvts.tif, TIFFTAG_STONITS, |
606 |
cvts.stonits/pow(2.,(double)cvts.bradj)); |
607 |
if (cvts.capdate[0]) |
608 |
TIFFSetField(cvts.tif, TIFFTAG_DATETIME, cvts.capdate); |
609 |
if (cvts.owner[0]) |
610 |
TIFFSetField(cvts.tif, TIFFTAG_ARTIST, cvts.owner); |
611 |
if (cvts.comp == COMPRESSION_NONE) |
612 |
i1 = TIFFScanlineSize(cvts.tif); |
613 |
else |
614 |
i1 = 3*cvts.xmax; /* conservative guess */ |
615 |
i2 = 8192/i1; /* compute good strip size */ |
616 |
if (i2 < 1) i2 = 1; |
617 |
TIFFSetField(cvts.tif, TIFFTAG_ROWSPERSTRIP, (uint32)i2); |
618 |
|
619 |
allocbufs(); /* allocate scanline buffers */ |
620 |
} |
621 |
|
622 |
|
623 |
static void |
624 |
ra2tiff( /* convert Radiance picture to TIFF image */ |
625 |
int ac, |
626 |
char *av[] |
627 |
) |
628 |
{ |
629 |
uint32 y; |
630 |
/* open Radiance file */ |
631 |
if (!strcmp(av[ac], "-")) |
632 |
cvts.rfp = stdin; |
633 |
else if ((cvts.rfp = fopen(av[ac], "r")) == NULL) |
634 |
quiterr("cannot open Radiance input picture"); |
635 |
/* open TIFF file */ |
636 |
if ((cvts.tif = TIFFOpen(av[ac+1], "w")) == NULL) |
637 |
quiterr("cannot open TIFF output"); |
638 |
|
639 |
initfromrad(); /* initialize conversion */ |
640 |
|
641 |
for (y = 0; y < cvts.ymax; y++) /* convert image */ |
642 |
(*cvts.tf)(y); |
643 |
/* clean up */ |
644 |
TIFFClose(cvts.tif); |
645 |
fclose(cvts.rfp); |
646 |
} |
647 |
|
648 |
|
649 |
static void |
650 |
Luv2Color( /* read/convert/write Luv->COLOR scanline */ |
651 |
uint32 y |
652 |
) |
653 |
{ |
654 |
register int x; |
655 |
|
656 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT)) |
657 |
quiterr("internal error 1 in Luv2Color"); |
658 |
|
659 |
if (cvts.pconf != PLANARCONFIG_CONTIG) |
660 |
quiterr("cannot handle separate 32-bit color planes"); |
661 |
|
662 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
663 |
quiterr("error reading TIFF input"); |
664 |
/* also works for float RGB */ |
665 |
for (x = cvts.xmax; x--; ) { |
666 |
setcolor(cvts.r.colors[x], |
667 |
cvts.t.fp[3*x], |
668 |
cvts.t.fp[3*x + 1], |
669 |
cvts.t.fp[3*x + 2]); |
670 |
if (CHK(C_CXFM)) |
671 |
colortrans(cvts.r.colors[x], cvts.cmat, |
672 |
cvts.r.colors[x]); |
673 |
if (CHK(C_GAMUT)) |
674 |
clipgamut(cvts.r.colors[x], cvts.t.fp[3*x + 1], |
675 |
CGAMUT_LOWER, cblack, cwhite); |
676 |
} |
677 |
if (cvts.bradj) { |
678 |
double m = pow(2.,(double)cvts.bradj); |
679 |
for (x = cvts.xmax; x--; ) |
680 |
scalecolor(cvts.r.colors[x], m); |
681 |
} |
682 |
|
683 |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
684 |
quiterr("error writing Radiance picture"); |
685 |
} |
686 |
|
687 |
|
688 |
static void |
689 |
RRGGBB2Color( /* read/convert/write RGB16->COLOR scanline */ |
690 |
uint32 y |
691 |
) |
692 |
{ |
693 |
int dogamma = (cvts.gamcor < 0.99) | (cvts.gamcor > 1.01); |
694 |
register double d; |
695 |
register int x; |
696 |
|
697 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_TWRD|C_RFLT)) |
698 |
quiterr("internal error 1 in RRGGBB2Color"); |
699 |
|
700 |
if (cvts.pconf != PLANARCONFIG_CONTIG) |
701 |
quiterr("cannot handle separate 16-bit color planes"); |
702 |
|
703 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
704 |
quiterr("error reading TIFF input"); |
705 |
|
706 |
for (x = cvts.xmax; x--; ) { |
707 |
d = (cvts.t.wp[3*x] + 0.5)*(1./(1L<<16)); |
708 |
if (dogamma) d = pow(d, cvts.gamcor); |
709 |
colval(cvts.r.colors[x],RED) = d; |
710 |
d = (cvts.t.wp[3*x + 1] + 0.5)*(1./(1L<<16)); |
711 |
if (dogamma) d = pow(d, cvts.gamcor); |
712 |
colval(cvts.r.colors[x],GRN) = d; |
713 |
d = (cvts.t.wp[3*x + 2] + 0.5)*(1./(1L<<16)); |
714 |
if (dogamma) d = pow(d, cvts.gamcor); |
715 |
colval(cvts.r.colors[x],BLU) = d; |
716 |
if (CHK(C_CXFM)) |
717 |
colortrans(cvts.r.colors[x], cvts.cmat, |
718 |
cvts.r.colors[x]); |
719 |
} |
720 |
if (cvts.bradj) { |
721 |
d = pow(2.,(double)cvts.bradj); |
722 |
for (x = cvts.xmax; x--; ) |
723 |
scalecolor(cvts.r.colors[x], d); |
724 |
} |
725 |
|
726 |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
727 |
quiterr("error writing Radiance picture"); |
728 |
} |
729 |
|
730 |
|
731 |
static void |
732 |
L2Color( /* read/convert/write Lfloat->COLOR scanline */ |
733 |
uint32 y |
734 |
) |
735 |
{ |
736 |
float m = pow(2., (double)cvts.bradj); |
737 |
register int x; |
738 |
|
739 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
740 |
quiterr("internal error 1 in L2Color"); |
741 |
|
742 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
743 |
quiterr("error reading TIFF input"); |
744 |
/* also works for float greyscale */ |
745 |
for (x = cvts.xmax; x--; ) { |
746 |
register float f = cvts.t.fp[x]; |
747 |
if (cvts.bradj) f *= m; |
748 |
setcolor(cvts.r.colors[x], f, f, f); |
749 |
} |
750 |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
751 |
quiterr("error writing Radiance picture"); |
752 |
} |
753 |
|
754 |
|
755 |
static void |
756 |
RGB2Colr( /* read/convert/write RGB->COLR scanline */ |
757 |
uint32 y |
758 |
) |
759 |
{ |
760 |
COLOR ctmp; |
761 |
register int x; |
762 |
|
763 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY)) |
764 |
quiterr("internal error 1 in RGB2Colr"); |
765 |
|
766 |
if (cvts.pconf == PLANARCONFIG_CONTIG) { |
767 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
768 |
goto readerr; |
769 |
for (x = cvts.xmax; x--; ) { |
770 |
cvts.r.colrs[x][RED] = cvts.t.bp[3*x]; |
771 |
cvts.r.colrs[x][GRN] = cvts.t.bp[3*x + 1]; |
772 |
cvts.r.colrs[x][BLU] = cvts.t.bp[3*x + 2]; |
773 |
} |
774 |
} else { |
775 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
776 |
goto readerr; |
777 |
if (TIFFReadScanline(cvts.tif, |
778 |
(tdata_t)(cvts.t.bp + cvts.xmax), y, 1) < 0) |
779 |
goto readerr; |
780 |
if (TIFFReadScanline(cvts.tif, |
781 |
(tdata_t)(cvts.t.bp + 2*cvts.xmax), y, 2) < 0) |
782 |
goto readerr; |
783 |
for (x = cvts.xmax; x--; ) { |
784 |
cvts.r.colrs[x][RED] = cvts.t.bp[x]; |
785 |
cvts.r.colrs[x][GRN] = cvts.t.bp[cvts.xmax + x]; |
786 |
cvts.r.colrs[x][BLU] = cvts.t.bp[2*cvts.xmax + x]; |
787 |
} |
788 |
} |
789 |
|
790 |
gambs_colrs(cvts.r.colrs, cvts.xmax); |
791 |
if (CHK(C_CXFM)) |
792 |
for (x = cvts.xmax; x--; ) { |
793 |
colr_color(ctmp, cvts.r.colrs[x]); |
794 |
colortrans(ctmp, cvts.cmat, ctmp); |
795 |
if (CHK(C_GAMUT)) /* !CHK(C_XYZE) */ |
796 |
clipgamut(ctmp, bright(ctmp), CGAMUT_LOWER, |
797 |
cblack, cwhite); |
798 |
setcolr(cvts.r.colrs[x], colval(ctmp,RED), |
799 |
colval(ctmp,GRN), colval(ctmp,BLU)); |
800 |
} |
801 |
if (cvts.bradj) |
802 |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
803 |
|
804 |
if (fwritecolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
805 |
quiterr("error writing Radiance picture"); |
806 |
return; |
807 |
readerr: |
808 |
quiterr("error reading TIFF input"); |
809 |
} |
810 |
|
811 |
|
812 |
static void |
813 |
Gry2Colr( /* read/convert/write G8->COLR scanline */ |
814 |
uint32 y |
815 |
) |
816 |
{ |
817 |
register int x; |
818 |
|
819 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != C_GRY) |
820 |
quiterr("internal error 1 in Gry2Colr"); |
821 |
|
822 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
823 |
quiterr("error reading TIFF input"); |
824 |
|
825 |
for (x = cvts.xmax; x--; ) |
826 |
cvts.r.colrs[x][RED] = |
827 |
cvts.r.colrs[x][GRN] = |
828 |
cvts.r.colrs[x][BLU] = cvts.t.bp[x]; |
829 |
|
830 |
gambs_colrs(cvts.r.colrs, cvts.xmax); |
831 |
if (cvts.bradj) |
832 |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
833 |
|
834 |
if (fwritecolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
835 |
quiterr("error writing Radiance picture"); |
836 |
} |
837 |
|
838 |
|
839 |
static void |
840 |
GGry2Color( /* read/convert/write G16->COLOR scanline */ |
841 |
uint32 y |
842 |
) |
843 |
{ |
844 |
int dogamma = (cvts.gamcor < 0.99) | (cvts.gamcor > 1.01); |
845 |
double m; |
846 |
register double d; |
847 |
register int x; |
848 |
|
849 |
if (CHK(C_TFLT|C_TWRD|C_GRY|C_RFLT) != (C_GRY|C_RFLT|C_TWRD)) |
850 |
quiterr("internal error 1 in GGry2Color"); |
851 |
|
852 |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
853 |
quiterr("error reading TIFF input"); |
854 |
|
855 |
if (cvts.bradj) |
856 |
m = pow(2., (double)cvts.bradj); |
857 |
for (x = cvts.xmax; x--; ) { |
858 |
d = (cvts.t.wp[x] + 0.5)*(1./(1L<<16)); |
859 |
if (dogamma) d = pow(d, cvts.gamcor); |
860 |
if (cvts.bradj) d *= m; |
861 |
colval(cvts.r.colors[x],RED) = |
862 |
colval(cvts.r.colors[x],GRN) = |
863 |
colval(cvts.r.colors[x],BLU) = d; |
864 |
} |
865 |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
866 |
quiterr("error writing Radiance picture"); |
867 |
} |
868 |
|
869 |
|
870 |
static void |
871 |
Color2GGry( /* read/convert/write COLOR->G16 scanline */ |
872 |
uint32 y |
873 |
) |
874 |
{ |
875 |
int dogamma = (cvts.gamcor < 0.99) | (cvts.gamcor > 1.01); |
876 |
float m = pow(2.,(double)cvts.bradj); |
877 |
register int x; |
878 |
|
879 |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TWRD|C_GRY)) |
880 |
quiterr("internal error 1 in Color2GGry"); |
881 |
|
882 |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
883 |
quiterr("error reading Radiance picture"); |
884 |
|
885 |
for (x = cvts.xmax; x--; ) { |
886 |
register float f = m*( CHK(C_XYZE) ? |
887 |
colval(cvts.r.colors[x],CIEY) |
888 |
: bright(cvts.r.colors[x]) ); |
889 |
if (f <= 0) |
890 |
cvts.t.wp[x] = 0; |
891 |
else if (f >= 1) |
892 |
cvts.t.wp[x] = 0xffff; |
893 |
else if (dogamma) |
894 |
cvts.t.wp[x] = (int)((float)(1L<<16) * |
895 |
pow(f, 1./cvts.gamcor)); |
896 |
else |
897 |
cvts.t.wp[x] = (int)((float)(1L<<16) * f); |
898 |
} |
899 |
|
900 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
901 |
quiterr("error writing TIFF output"); |
902 |
} |
903 |
|
904 |
|
905 |
static void |
906 |
Color2L( /* read/convert/write COLOR->Lfloat scanline */ |
907 |
uint32 y |
908 |
) |
909 |
{ |
910 |
float m = pow(2.,(double)cvts.bradj); |
911 |
register int x; |
912 |
|
913 |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
914 |
quiterr("internal error 1 in Color2L"); |
915 |
|
916 |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
917 |
quiterr("error reading Radiance picture"); |
918 |
|
919 |
for (x = cvts.xmax; x--; ) |
920 |
cvts.t.fp[x] = m*( CHK(C_XYZE) ? colval(cvts.r.colors[x],CIEY) |
921 |
: bright(cvts.r.colors[x]) ); |
922 |
|
923 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
924 |
quiterr("error writing TIFF output"); |
925 |
} |
926 |
|
927 |
|
928 |
static void |
929 |
Color2Luv( /* read/convert/write COLOR->Luv scanline */ |
930 |
uint32 y |
931 |
) |
932 |
{ |
933 |
register int x; |
934 |
|
935 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT)) |
936 |
quiterr("internal error 1 in Color2Luv"); |
937 |
|
938 |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
939 |
quiterr("error reading Radiance picture"); |
940 |
|
941 |
if (CHK(C_CXFM)) |
942 |
for (x = cvts.xmax; x--; ) |
943 |
colortrans(cvts.r.colors[x], cvts.cmat, |
944 |
cvts.r.colors[x]); |
945 |
if (cvts.bradj) { |
946 |
double m = pow(2.,(double)cvts.bradj); |
947 |
for (x = cvts.xmax; x--; ) |
948 |
scalecolor(cvts.r.colors[x], m); |
949 |
} |
950 |
/* also works for float RGB */ |
951 |
for (x = cvts.xmax; x--; ) { |
952 |
cvts.t.fp[3*x] = colval(cvts.r.colors[x],CIEX); |
953 |
cvts.t.fp[3*x+1] = colval(cvts.r.colors[x],CIEY); |
954 |
cvts.t.fp[3*x+2] = colval(cvts.r.colors[x],CIEZ); |
955 |
} |
956 |
|
957 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
958 |
quiterr("error writing TIFF output"); |
959 |
} |
960 |
|
961 |
|
962 |
static void |
963 |
Color2RRGGBB( /* read/convert/write COLOR->RGB16 scanline */ |
964 |
uint32 y |
965 |
) |
966 |
{ |
967 |
int dogamma = (cvts.gamcor < 0.99) | (cvts.gamcor > 1.01); |
968 |
float m = pow(2.,(double)cvts.bradj); |
969 |
register int x, i; |
970 |
|
971 |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TWRD)) |
972 |
quiterr("internal error 1 in Color2RRGGBB"); |
973 |
|
974 |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
975 |
quiterr("error reading Radiance picture"); |
976 |
|
977 |
for (x = cvts.xmax; x--; ) { |
978 |
if (CHK(C_CXFM)) { |
979 |
colortrans(cvts.r.colors[x], cvts.cmat, |
980 |
cvts.r.colors[x]); |
981 |
if (CHK(C_GAMUT)) |
982 |
clipgamut(cvts.r.colors[x], bright(cvts.r.colors[x]), |
983 |
CGAMUT_LOWER, cblack, cwhite); |
984 |
} |
985 |
for (i = 3; i--; ) { |
986 |
register float f = m*colval(cvts.r.colors[x],i); |
987 |
if (f <= 0) |
988 |
cvts.t.wp[3*x + i] = 0; |
989 |
else if (f >= 1) |
990 |
cvts.t.wp[3*x + i] = 0xffff; |
991 |
else if (dogamma) |
992 |
cvts.t.wp[3*x + i] = (int)((float)(1L<<16) * |
993 |
pow(f, 1./cvts.gamcor)); |
994 |
else |
995 |
cvts.t.wp[3*x + i] = (int)((float)(1L<<16)*f); |
996 |
} |
997 |
} |
998 |
|
999 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
1000 |
quiterr("error writing TIFF output"); |
1001 |
} |
1002 |
|
1003 |
|
1004 |
static void |
1005 |
Colr2Gry( /* read/convert/write COLR->RGB scanline */ |
1006 |
uint32 y |
1007 |
) |
1008 |
{ |
1009 |
register int x; |
1010 |
|
1011 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != C_GRY) |
1012 |
quiterr("internal error 1 in Colr2Gry"); |
1013 |
|
1014 |
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
1015 |
quiterr("error reading Radiance picture"); |
1016 |
|
1017 |
if (cvts.bradj) |
1018 |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
1019 |
for (x = cvts.xmax; x--; ) |
1020 |
colval(cvts.r.colrs[x],CIEY) = normbright(cvts.r.colrs[x]); |
1021 |
colrs_gambs(cvts.r.colrs, cvts.xmax); |
1022 |
|
1023 |
for (x = cvts.xmax; x--; ) |
1024 |
cvts.t.bp[x] = colval(cvts.r.colrs[x],CIEY); |
1025 |
|
1026 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
1027 |
quiterr("error writing TIFF output"); |
1028 |
} |
1029 |
|
1030 |
|
1031 |
static void |
1032 |
Colr2RGB( /* read/convert/write COLR->RGB scanline */ |
1033 |
uint32 y |
1034 |
) |
1035 |
{ |
1036 |
COLOR ctmp; |
1037 |
register int x; |
1038 |
|
1039 |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY)) |
1040 |
quiterr("internal error 1 in Colr2RGB"); |
1041 |
|
1042 |
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
1043 |
quiterr("error reading Radiance picture"); |
1044 |
|
1045 |
if (cvts.bradj) |
1046 |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
1047 |
if (CHK(C_CXFM)) |
1048 |
for (x = cvts.xmax; x--; ) { |
1049 |
colr_color(ctmp, cvts.r.colrs[x]); |
1050 |
colortrans(ctmp, cvts.cmat, ctmp); |
1051 |
if (CHK(C_GAMUT)) |
1052 |
clipgamut(ctmp, bright(ctmp), CGAMUT, |
1053 |
cblack, cwhite); |
1054 |
setcolr(cvts.r.colrs[x], colval(ctmp,RED), |
1055 |
colval(ctmp,GRN), colval(ctmp,BLU)); |
1056 |
} |
1057 |
colrs_gambs(cvts.r.colrs, cvts.xmax); |
1058 |
|
1059 |
for (x = cvts.xmax; x--; ) { |
1060 |
cvts.t.bp[3*x] = cvts.r.colrs[x][RED]; |
1061 |
cvts.t.bp[3*x+1] = cvts.r.colrs[x][GRN]; |
1062 |
cvts.t.bp[3*x+2] = cvts.r.colrs[x][BLU]; |
1063 |
} |
1064 |
|
1065 |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
1066 |
quiterr("error writing TIFF output"); |
1067 |
} |