1 |
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/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
2 |
– |
|
1 |
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#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ SGI"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
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#endif |
6 |
– |
|
4 |
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/* |
5 |
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* Program to convert between RADIANCE and TIFF files. |
6 |
< |
* Added experimental LogLuv encodings 7/97 (GWL). |
6 |
> |
* Added LogLuv encodings 7/97 (GWL). |
7 |
> |
* Added white-balance adjustment 10/01 (GW). |
8 |
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*/ |
9 |
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|
10 |
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#include <stdio.h> |
11 |
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#include <math.h> |
12 |
+ |
#include <time.h> |
13 |
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#include "tiffio.h" |
14 |
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#include "color.h" |
15 |
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#include "resolu.h" |
16 |
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|
17 |
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#define GAMCOR 2.2 /* default gamma */ |
18 |
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|
20 |
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#ifndef malloc |
21 |
– |
extern char *malloc(); |
22 |
– |
#endif |
19 |
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/* conversion flags */ |
20 |
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#define C_CXFM 0x1 /* needs color transformation */ |
21 |
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#define C_GAMUT 0x2 /* needs gamut mapping */ |
24 |
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#define C_XYZE 0x10 /* Radiance is XYZE */ |
25 |
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#define C_RFLT 0x20 /* Radiance data is float */ |
26 |
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#define C_TFLT 0x40 /* TIFF data is float */ |
27 |
< |
#define C_PRIM 0x80 /* has assigned primaries */ |
27 |
> |
#define C_TWRD 0x80 /* TIFF data is 16-bit */ |
28 |
> |
#define C_PRIM 0x100 /* has assigned primaries */ |
29 |
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|
30 |
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struct { |
31 |
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uint16 flags; /* conversion flags (defined above) */ |
49 |
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} r; /* Radiance scanline */ |
50 |
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union { |
51 |
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uint8 *bp; /* byte pointer */ |
52 |
+ |
uint16 *wp; /* word pointer */ |
53 |
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float *fp; /* float pointer */ |
54 |
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char *p; /* generic pointer */ |
55 |
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} t; /* TIFF scanline */ |
56 |
< |
int (*tf)(); /* translation procedure */ |
56 |
> |
void (*tf)(); /* translation procedure */ |
57 |
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} cvts = { /* conversion structure */ |
58 |
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0, COMPRESSION_NONE, PHOTOMETRIC_RGB, |
59 |
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PLANARCONFIG_CONTIG, GAMCOR, 0, 1, 1., 1., |
64 |
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#define CLR(f) (cvts.flags &= ~(f)) |
65 |
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#define TGL(f) (cvts.flags ^= (f)) |
66 |
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|
67 |
< |
int Luv2Color(), L2Color(), RGB2Colr(), Gry2Colr(); |
68 |
< |
int Color2Luv(), Color2L(), Colr2RGB(), Colr2Gry(); |
67 |
> |
void Luv2Color(), L2Color(), RGB2Colr(), Gry2Colr(); |
68 |
> |
void Color2Luv(), Color2L(), Colr2RGB(), Colr2Gry(); |
69 |
> |
void RRGGBB2Color(), GGry2Color(), Color2RRGGBB(), Color2GGry(); |
70 |
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|
71 |
+ |
#define RfGfBf2Color Luv2Color |
72 |
+ |
#define Gryf2Color L2Color |
73 |
+ |
#define Color2Gryf Color2L |
74 |
+ |
#define Color2RfGfBf Color2Luv |
75 |
+ |
|
76 |
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short ortab[8] = { /* orientation conversion table */ |
77 |
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YMAJOR|YDECR, |
78 |
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YMAJOR|YDECR|XDECR, |
118 |
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cvts.comp = COMPRESSION_SGILOG24; |
119 |
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cvts.phot = PHOTOMETRIC_LOGLUV; |
120 |
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break; |
121 |
+ |
case 'w': /* 16-bit/primary output? */ |
122 |
+ |
TGL(C_TWRD); |
123 |
+ |
break; |
124 |
+ |
case 'f': /* IEEE float output? */ |
125 |
+ |
TGL(C_TFLT); |
126 |
+ |
break; |
127 |
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case 'b': /* greyscale output? */ |
128 |
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TGL(C_GRY); |
129 |
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break; |
154 |
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|
155 |
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if (i != argc-2) |
156 |
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goto userr; |
157 |
< |
|
158 |
< |
if (CHK(C_GRY)) /* consistency corrections */ |
157 |
> |
/* consistency checks */ |
158 |
> |
if (CHK(C_GRY)) |
159 |
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if (cvts.phot == PHOTOMETRIC_RGB) |
160 |
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cvts.phot = PHOTOMETRIC_MINISBLACK; |
161 |
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else { |
162 |
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cvts.phot = PHOTOMETRIC_LOGL; |
163 |
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cvts.comp = COMPRESSION_SGILOG; |
164 |
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} |
165 |
+ |
if (CHK(C_TWRD|C_TFLT) == (C_TWRD|C_TFLT)) |
166 |
+ |
goto userr; |
167 |
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|
168 |
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ra2tiff(i, argv); |
169 |
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} |
171 |
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exit(0); |
172 |
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userr: |
173 |
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fprintf(stderr, |
174 |
< |
"Usage: %s [-z|-L|-l][-b][-e +/-stops][-g gamma] {in.pic|-} out.tif\n", |
174 |
> |
"Usage: %s [-z|-L|-l|-f|-w][-b][-e +/-stops][-g gamma] {in.pic|-} out.tif\n", |
175 |
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progname); |
176 |
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fprintf(stderr, |
177 |
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" Or: %s -r [-x][-e +/-stops][-g gamma] in.tif [out.pic|-]\n", |
196 |
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int rsiz, tsiz; |
197 |
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|
198 |
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rsiz = CHK(C_RFLT) ? sizeof(COLOR) : sizeof(COLR); |
199 |
< |
tsiz = (CHK(C_TFLT) ? sizeof(float) : sizeof(uint8)) * |
199 |
> |
tsiz = (CHK(C_TFLT) ? sizeof(float) : |
200 |
> |
CHK(C_TWRD) ? sizeof(uint16) : sizeof(uint8)) * |
201 |
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(CHK(C_GRY) ? 1 : 3); |
202 |
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cvts.r.p = (char *)malloc(rsiz*cvts.xmax); |
203 |
|
cvts.t.p = (char *)malloc(tsiz*cvts.xmax); |
211 |
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uint16 hi; |
212 |
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float *fa, f1, f2; |
213 |
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|
214 |
< |
CLR(C_GRY|C_GAMMA|C_PRIM|C_RFLT|C_TFLT|C_CXFM); |
214 |
> |
CLR(C_GRY|C_GAMMA|C_PRIM|C_RFLT|C_TFLT|C_TWRD|C_CXFM); |
215 |
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|
216 |
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TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_PLANARCONFIG, &cvts.pconf); |
217 |
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|
274 |
|
quiterr("unsupported photometric type"); |
275 |
|
/* fall through */ |
276 |
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case PHOTOMETRIC_RGB: |
277 |
< |
SET(C_GAMMA|C_GAMUT); |
277 |
> |
SET(C_GAMMA); |
278 |
|
setcolrgam(cvts.gamcor); |
279 |
|
if (CHK(C_XYZE)) { |
280 |
< |
comprgb2xyzmat(cvts.cmat, |
280 |
> |
comprgb2xyzWBmat(cvts.cmat, |
281 |
|
CHK(C_PRIM) ? cvts.prims : stdprims); |
282 |
|
SET(C_CXFM); |
283 |
|
} |
284 |
|
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
285 |
|
hi != 3) |
286 |
|
quiterr("unsupported samples per pixel for RGB"); |
287 |
< |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi) || |
288 |
< |
hi != 8) |
287 |
> |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi)) |
288 |
> |
hi = -1; |
289 |
> |
switch (hi) { |
290 |
> |
case 8: |
291 |
> |
cvts.tf = RGB2Colr; |
292 |
> |
break; |
293 |
> |
case 16: |
294 |
> |
cvts.tf = RRGGBB2Color; |
295 |
> |
SET(C_RFLT|C_TWRD); |
296 |
> |
break; |
297 |
> |
case 32: |
298 |
> |
cvts.tf = RfGfBf2Color; |
299 |
> |
SET(C_RFLT|C_TFLT); |
300 |
> |
break; |
301 |
> |
default: |
302 |
|
quiterr("unsupported bits per sample for RGB"); |
303 |
< |
cvts.tf = RGB2Colr; |
303 |
> |
} |
304 |
|
break; |
305 |
|
case PHOTOMETRIC_MINISBLACK: |
306 |
< |
SET(C_GRY|C_GAMMA|C_GAMUT); |
306 |
> |
SET(C_GRY|C_GAMMA); |
307 |
> |
setcolrgam(cvts.gamcor); |
308 |
|
cvts.pconf = PLANARCONFIG_CONTIG; |
309 |
|
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
310 |
|
hi != 1) |
311 |
|
quiterr("unsupported samples per pixel for greyscale"); |
312 |
< |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi) || |
313 |
< |
hi != 8) |
314 |
< |
quiterr("unsupported bits per sample for greyscale"); |
315 |
< |
cvts.tf = Gry2Colr; |
312 |
> |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi)) |
313 |
> |
hi = -1; |
314 |
> |
switch (hi) { |
315 |
> |
case 8: |
316 |
> |
cvts.tf = Gry2Colr; |
317 |
> |
break; |
318 |
> |
case 16: |
319 |
> |
cvts.tf = GGry2Color; |
320 |
> |
SET(C_RFLT|C_TWRD); |
321 |
> |
break; |
322 |
> |
case 32: |
323 |
> |
cvts.tf = Gryf2Color; |
324 |
> |
SET(C_RFLT|C_TFLT); |
325 |
> |
break; |
326 |
> |
default: |
327 |
> |
quiterr("unsupported bits per sample for Gray"); |
328 |
> |
} |
329 |
|
break; |
330 |
|
default: |
331 |
|
quiterr("unsupported photometric type"); |
399 |
|
SET(C_XYZE); |
400 |
|
else |
401 |
|
quiterr("unrecognized input picture format"); |
402 |
< |
return; |
402 |
> |
return(1); |
403 |
|
} |
404 |
|
if (isexpos(s)) { |
405 |
|
cvts.stonits /= exposval(s); |
406 |
< |
return; |
406 |
> |
return(1); |
407 |
|
} |
408 |
|
if (isaspect(s)) { |
409 |
|
cvts.pixrat *= aspectval(s); |
410 |
< |
return; |
410 |
> |
return(1); |
411 |
|
} |
412 |
|
if (isprims(s)) { |
413 |
|
primsval(cvts.prims, s); |
414 |
|
SET(C_PRIM); |
415 |
< |
return; |
415 |
> |
return(1); |
416 |
|
} |
417 |
+ |
return(0); |
418 |
|
} |
419 |
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|
420 |
|
|
422 |
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{ |
423 |
|
int i1, i2, po; |
424 |
|
/* read Radiance header */ |
425 |
< |
CLR(C_RFLT|C_TFLT|C_XYZE|C_PRIM|C_GAMMA|C_CXFM); |
425 |
> |
CLR(C_RFLT|C_XYZE|C_PRIM|C_GAMMA|C_CXFM); |
426 |
|
cvts.stonits = 1.; |
427 |
|
cvts.pixrat = 1.; |
428 |
|
cvts.pconf = PLANARCONFIG_CONTIG; |
448 |
|
switch (cvts.phot) { |
449 |
|
case PHOTOMETRIC_LOGLUV: |
450 |
|
SET(C_RFLT|C_TFLT); |
451 |
< |
CLR(C_GRY); |
451 |
> |
CLR(C_GRY|C_TWRD); |
452 |
|
if (!CHK(C_XYZE)) { |
453 |
< |
cpcolormat(cvts.cmat, rgb2xyzmat); |
453 |
> |
comprgb2xyzWBmat(cvts.cmat, |
454 |
> |
CHK(C_PRIM) ? cvts.prims : stdprims); |
455 |
|
SET(C_CXFM); |
456 |
|
} |
457 |
|
if (cvts.comp != COMPRESSION_SGILOG && |
463 |
|
break; |
464 |
|
case PHOTOMETRIC_LOGL: |
465 |
|
SET(C_GRY|C_RFLT|C_TFLT); |
466 |
+ |
CLR(C_TWRD); |
467 |
|
if (cvts.comp != COMPRESSION_SGILOG) |
468 |
|
quiterr("internal error 3 in initfromrad"); |
469 |
|
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
475 |
|
CLR(C_GRY); |
476 |
|
setcolrgam(cvts.gamcor); |
477 |
|
if (CHK(C_XYZE)) { |
478 |
< |
compxyz2rgbmat(cvts.cmat, |
478 |
> |
compxyz2rgbWBmat(cvts.cmat, |
479 |
|
CHK(C_PRIM) ? cvts.prims : stdprims); |
480 |
|
SET(C_CXFM); |
481 |
|
} |
485 |
|
TIFFSetField(cvts.tif, TIFFTAG_WHITEPOINT, |
486 |
|
(float *)cvts.prims[WHT]); |
487 |
|
} |
488 |
< |
cvts.tf = Colr2RGB; |
488 |
> |
if (CHK(C_TWRD)) { |
489 |
> |
cvts.tf = Color2RRGGBB; |
490 |
> |
SET(C_RFLT); |
491 |
> |
} else if (CHK(C_TFLT)) { |
492 |
> |
cvts.tf = Color2RfGfBf; |
493 |
> |
SET(C_RFLT); |
494 |
> |
} else |
495 |
> |
cvts.tf = Colr2RGB; |
496 |
|
break; |
497 |
|
case PHOTOMETRIC_MINISBLACK: |
498 |
|
SET(C_GRY|C_GAMMA|C_GAMUT); |
499 |
|
setcolrgam(cvts.gamcor); |
500 |
< |
cvts.tf = Colr2Gry; |
500 |
> |
if (CHK(C_TWRD)) { |
501 |
> |
cvts.tf = Color2GGry; |
502 |
> |
SET(C_RFLT); |
503 |
> |
} else if (CHK(C_TFLT)) { |
504 |
> |
cvts.tf = Color2Gryf; |
505 |
> |
SET(C_RFLT); |
506 |
> |
} else |
507 |
> |
cvts.tf = Colr2Gry; |
508 |
|
break; |
509 |
|
default: |
510 |
|
quiterr("internal error 4 in initfromrad"); |
514 |
|
TIFFSetField(cvts.tif, TIFFTAG_IMAGEWIDTH, cvts.xmax); |
515 |
|
TIFFSetField(cvts.tif, TIFFTAG_IMAGELENGTH, cvts.ymax); |
516 |
|
TIFFSetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, CHK(C_GRY) ? 1 : 3); |
517 |
< |
TIFFSetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, CHK(C_TFLT) ? 32 : 8); |
517 |
> |
TIFFSetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, |
518 |
> |
CHK(C_TFLT) ? 32 : CHK(C_TWRD) ? 16 : 8); |
519 |
|
TIFFSetField(cvts.tif, TIFFTAG_XRESOLUTION, 72.); |
520 |
|
TIFFSetField(cvts.tif, TIFFTAG_YRESOLUTION, 72./cvts.pixrat); |
521 |
|
TIFFSetField(cvts.tif, TIFFTAG_ORIENTATION, cvts.orient); |
559 |
|
} |
560 |
|
|
561 |
|
|
562 |
< |
int |
562 |
> |
void |
563 |
|
Luv2Color(y) /* read/convert/write Luv->COLOR scanline */ |
564 |
|
uint32 y; |
565 |
|
{ |
566 |
|
register int x; |
567 |
|
|
568 |
< |
if (CHK(C_RFLT|C_TFLT) != (C_RFLT|C_TFLT) | CHK(C_GRY)) |
568 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT)) |
569 |
|
quiterr("internal error 1 in Luv2Color"); |
570 |
|
|
571 |
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
572 |
|
quiterr("error reading TIFF input"); |
573 |
< |
|
573 |
> |
/* also works for float RGB */ |
574 |
|
for (x = cvts.xmax; x--; ) { |
575 |
< |
cvts.r.colors[x][RED] = cvts.t.fp[3*x]; |
576 |
< |
cvts.r.colors[x][GRN] = cvts.t.fp[3*x + 1]; |
577 |
< |
cvts.r.colors[x][BLU] = cvts.t.fp[3*x + 2]; |
575 |
> |
setcolor(cvts.r.colors[x], |
576 |
> |
cvts.t.fp[3*x], |
577 |
> |
cvts.t.fp[3*x + 1], |
578 |
> |
cvts.t.fp[3*x + 2]); |
579 |
|
if (CHK(C_CXFM)) |
580 |
|
colortrans(cvts.r.colors[x], cvts.cmat, |
581 |
|
cvts.r.colors[x]); |
594 |
|
} |
595 |
|
|
596 |
|
|
597 |
< |
int |
598 |
< |
L2Color(y) /* read/convert/write L16->COLOR scanline */ |
597 |
> |
void |
598 |
> |
RRGGBB2Color(y) /* read/convert/write RGB16->COLOR scanline */ |
599 |
|
uint32 y; |
600 |
|
{ |
601 |
+ |
int dogamma = cvts.gamcor < 0.99 | cvts.gamcor > 1.01; |
602 |
+ |
register double d; |
603 |
|
register int x; |
604 |
|
|
605 |
< |
if (CHK(C_RFLT|C_TFLT|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
606 |
< |
quiterr("internal error 1 in L2Color"); |
605 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_TWRD|C_RFLT)) |
606 |
> |
quiterr("internal error 1 in RRGGBB2Color"); |
607 |
|
|
608 |
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
609 |
|
quiterr("error reading TIFF input"); |
610 |
|
|
611 |
< |
for (x = cvts.xmax; x--; ) |
612 |
< |
cvts.r.colors[x][RED] = |
613 |
< |
cvts.r.colors[x][GRN] = |
614 |
< |
cvts.r.colors[x][BLU] = cvts.t.fp[x] > 0. ? cvts.t.fp[x] : 0.; |
611 |
> |
for (x = cvts.xmax; x--; ) { |
612 |
> |
d = (cvts.t.wp[3*x] + 0.5)*(1./(1L<<16)); |
613 |
> |
if (dogamma) d = pow(d, cvts.gamcor); |
614 |
> |
colval(cvts.r.colors[x],RED) = d; |
615 |
> |
d = (cvts.t.wp[3*x + 1] + 0.5)*(1./(1L<<16)); |
616 |
> |
if (dogamma) d = pow(d, cvts.gamcor); |
617 |
> |
colval(cvts.r.colors[x],GRN) = d; |
618 |
> |
d = (cvts.t.wp[3*x + 2] + 0.5)*(1./(1L<<16)); |
619 |
> |
if (dogamma) d = pow(d, cvts.gamcor); |
620 |
> |
colval(cvts.r.colors[x],BLU) = d; |
621 |
> |
if (CHK(C_CXFM)) |
622 |
> |
colortrans(cvts.r.colors[x], cvts.cmat, |
623 |
> |
cvts.r.colors[x]); |
624 |
> |
if (CHK(C_GAMUT)) |
625 |
> |
clipgamut(cvts.r.colors[x], cvts.t.fp[3*x + 1], |
626 |
> |
CGAMUT_LOWER, cblack, cwhite); |
627 |
> |
} |
628 |
> |
if (cvts.bradj) { |
629 |
> |
d = pow(2.,(double)cvts.bradj); |
630 |
> |
for (x = cvts.xmax; x--; ) |
631 |
> |
scalecolor(cvts.r.colors[x], d); |
632 |
> |
} |
633 |
|
|
634 |
|
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
635 |
|
quiterr("error writing Radiance picture"); |
636 |
|
} |
637 |
|
|
638 |
|
|
639 |
< |
int |
639 |
> |
void |
640 |
> |
L2Color(y) /* read/convert/write Lfloat->COLOR scanline */ |
641 |
> |
uint32 y; |
642 |
> |
{ |
643 |
> |
float m = pow(2., (double)cvts.bradj); |
644 |
> |
register int x; |
645 |
> |
|
646 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
647 |
> |
quiterr("internal error 1 in L2Color"); |
648 |
> |
|
649 |
> |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
650 |
> |
quiterr("error reading TIFF input"); |
651 |
> |
/* also works for float greyscale */ |
652 |
> |
for (x = cvts.xmax; x--; ) { |
653 |
> |
register float f = cvts.t.fp[x]; |
654 |
> |
if (cvts.bradj) f *= m; |
655 |
> |
setcolor(cvts.r.colors[x], f, f, f); |
656 |
> |
} |
657 |
> |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
658 |
> |
quiterr("error writing Radiance picture"); |
659 |
> |
} |
660 |
> |
|
661 |
> |
|
662 |
> |
void |
663 |
|
RGB2Colr(y) /* read/convert/write RGB->COLR scanline */ |
664 |
|
uint32 y; |
665 |
|
{ |
666 |
|
COLOR ctmp; |
667 |
|
register int x; |
668 |
|
|
669 |
< |
if (CHK(C_RFLT|C_TFLT|C_GRY)) |
669 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY)) |
670 |
|
quiterr("internal error 1 in RGB2Colr"); |
671 |
|
|
672 |
|
if (cvts.pconf == PLANARCONFIG_CONTIG) { |
681 |
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
682 |
|
goto readerr; |
683 |
|
if (TIFFReadScanline(cvts.tif, |
684 |
< |
(tidata_t)(cvts.t.bp + cvts.xmax), y, 1) < 0) |
684 |
> |
(tdata_t)(cvts.t.bp + cvts.xmax), y, 1) < 0) |
685 |
|
goto readerr; |
686 |
|
if (TIFFReadScanline(cvts.tif, |
687 |
< |
(tidata_t)(cvts.t.bp + 2*cvts.xmax), y, 2) < 0) |
687 |
> |
(tdata_t)(cvts.t.bp + 2*cvts.xmax), y, 2) < 0) |
688 |
|
goto readerr; |
689 |
|
for (x = cvts.xmax; x--; ) { |
690 |
|
cvts.r.colrs[x][RED] = cvts.t.bp[x]; |
715 |
|
} |
716 |
|
|
717 |
|
|
718 |
< |
int |
718 |
> |
void |
719 |
|
Gry2Colr(y) /* read/convert/write G8->COLR scanline */ |
720 |
|
uint32 y; |
721 |
|
{ |
722 |
|
register int x; |
723 |
|
|
724 |
< |
if (CHK(C_RFLT|C_TFLT) | !CHK(C_GRY)) |
724 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != C_GRY) |
725 |
|
quiterr("internal error 1 in Gry2Colr"); |
726 |
|
|
727 |
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
741 |
|
} |
742 |
|
|
743 |
|
|
744 |
< |
int |
745 |
< |
Color2L(y) /* read/convert/write COLOR->L16 scanline */ |
744 |
> |
void |
745 |
> |
GGry2Color(y) /* read/convert/write G16->COLOR scanline */ |
746 |
|
uint32 y; |
747 |
|
{ |
748 |
< |
double m = pow(2.,(double)cvts.bradj); |
748 |
> |
int dogamma = cvts.gamcor < 0.99 | cvts.gamcor > 1.01; |
749 |
> |
double m; |
750 |
> |
register double d; |
751 |
|
register int x; |
752 |
|
|
753 |
< |
if (CHK(C_RFLT|C_TFLT) != (C_RFLT|C_TFLT) | !CHK(C_GRY)) |
753 |
> |
if (CHK(C_TFLT|C_TWRD|C_GRY|C_RFLT) != (C_GRY|C_RFLT|C_TWRD)) |
754 |
> |
quiterr("internal error 1 in GGry2Color"); |
755 |
> |
|
756 |
> |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
757 |
> |
quiterr("error reading TIFF input"); |
758 |
> |
|
759 |
> |
if (cvts.bradj) |
760 |
> |
m = pow(2., (double)cvts.bradj); |
761 |
> |
for (x = cvts.xmax; x--; ) { |
762 |
> |
d = (cvts.t.wp[x] + 0.5)*(1./(1L<<16)); |
763 |
> |
if (dogamma) d = pow(d, cvts.gamcor); |
764 |
> |
if (cvts.bradj) d *= m; |
765 |
> |
colval(cvts.r.colors[x],RED) = |
766 |
> |
colval(cvts.r.colors[x],GRN) = |
767 |
> |
colval(cvts.r.colors[x],BLU) = d; |
768 |
> |
} |
769 |
> |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
770 |
> |
quiterr("error writing Radiance picture"); |
771 |
> |
} |
772 |
> |
|
773 |
> |
|
774 |
> |
void |
775 |
> |
Color2GGry(y) /* read/convert/write COLOR->G16 scanline */ |
776 |
> |
uint32 y; |
777 |
> |
{ |
778 |
> |
int dogamma = cvts.gamcor < 0.99 | cvts.gamcor > 1.01; |
779 |
> |
float m = pow(2.,(double)cvts.bradj); |
780 |
> |
register int x; |
781 |
> |
|
782 |
> |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TWRD|C_GRY)) |
783 |
> |
quiterr("internal error 1 in Color2GGry"); |
784 |
> |
|
785 |
> |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
786 |
> |
quiterr("error reading Radiance picture"); |
787 |
> |
|
788 |
> |
for (x = cvts.xmax; x--; ) { |
789 |
> |
register float f = m*( CHK(C_XYZE) ? |
790 |
> |
colval(cvts.r.colors[x],CIEY) |
791 |
> |
: bright(cvts.r.colors[x]) ); |
792 |
> |
if (f <= 0) |
793 |
> |
cvts.t.wp[x] = 0; |
794 |
> |
else if (f >= 1) |
795 |
> |
cvts.t.wp[x] = 0xffff; |
796 |
> |
else if (dogamma) |
797 |
> |
cvts.t.wp[x] = (int)((float)(1L<<16) * |
798 |
> |
pow(f, 1./cvts.gamcor)); |
799 |
> |
else |
800 |
> |
cvts.t.wp[x] = (int)((float)(1L<<16) * f); |
801 |
> |
} |
802 |
> |
|
803 |
> |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
804 |
> |
quiterr("error writing TIFF output"); |
805 |
> |
} |
806 |
> |
|
807 |
> |
|
808 |
> |
void |
809 |
> |
Color2L(y) /* read/convert/write COLOR->Lfloat scanline */ |
810 |
> |
uint32 y; |
811 |
> |
{ |
812 |
> |
float m = pow(2.,(double)cvts.bradj); |
813 |
> |
register int x; |
814 |
> |
|
815 |
> |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
816 |
|
quiterr("internal error 1 in Color2L"); |
817 |
|
|
818 |
|
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
827 |
|
} |
828 |
|
|
829 |
|
|
830 |
< |
int |
830 |
> |
void |
831 |
|
Color2Luv(y) /* read/convert/write COLOR->Luv scanline */ |
832 |
|
uint32 y; |
833 |
|
{ |
834 |
|
register int x; |
835 |
|
|
836 |
< |
if (CHK(C_RFLT|C_TFLT) != (C_RFLT|C_TFLT) | CHK(C_GRY)) |
836 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT)) |
837 |
|
quiterr("internal error 1 in Color2Luv"); |
838 |
|
|
839 |
|
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
848 |
|
for (x = cvts.xmax; x--; ) |
849 |
|
scalecolor(cvts.r.colors[x], m); |
850 |
|
} |
851 |
< |
|
851 |
> |
/* also works for float RGB */ |
852 |
|
for (x = cvts.xmax; x--; ) { |
853 |
< |
cvts.t.fp[3*x] = colval(cvts.r.colors[x],RED); |
854 |
< |
cvts.t.fp[3*x+1] = colval(cvts.r.colors[x],GRN); |
855 |
< |
cvts.t.fp[3*x+2] = colval(cvts.r.colors[x],BLU); |
853 |
> |
cvts.t.fp[3*x] = colval(cvts.r.colors[x],CIEX); |
854 |
> |
cvts.t.fp[3*x+1] = colval(cvts.r.colors[x],CIEY); |
855 |
> |
cvts.t.fp[3*x+2] = colval(cvts.r.colors[x],CIEZ); |
856 |
|
} |
857 |
|
|
858 |
|
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
860 |
|
} |
861 |
|
|
862 |
|
|
863 |
< |
int |
863 |
> |
void |
864 |
> |
Color2RRGGBB(y) /* read/convert/write COLOR->RGB16 scanline */ |
865 |
> |
uint32 y; |
866 |
> |
{ |
867 |
> |
int dogamma = cvts.gamcor < 0.99 | cvts.gamcor > 1.01; |
868 |
> |
float m = pow(2.,(double)cvts.bradj); |
869 |
> |
register int x, i; |
870 |
> |
|
871 |
> |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TWRD)) |
872 |
> |
quiterr("internal error 1 in Color2RRGGBB"); |
873 |
> |
|
874 |
> |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
875 |
> |
quiterr("error reading Radiance picture"); |
876 |
> |
|
877 |
> |
for (x = cvts.xmax; x--; ) |
878 |
> |
for (i = 3; i--; ) { |
879 |
> |
register float f = m*colval(cvts.r.colors[x],i); |
880 |
> |
if (f <= 0) |
881 |
> |
cvts.t.wp[3*x + i] = 0; |
882 |
> |
else if (f >= 1) |
883 |
> |
cvts.t.wp[3*x + i] = 0xffff; |
884 |
> |
else if (dogamma) |
885 |
> |
cvts.t.wp[3*x + i] = (int)((float)(1L<<16) * |
886 |
> |
pow(f, 1./cvts.gamcor)); |
887 |
> |
else |
888 |
> |
cvts.t.wp[3*x + i] = (int)((float)(1L<<16)*f); |
889 |
> |
} |
890 |
> |
|
891 |
> |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
892 |
> |
quiterr("error writing TIFF output"); |
893 |
> |
} |
894 |
> |
|
895 |
> |
|
896 |
> |
void |
897 |
|
Colr2Gry(y) /* read/convert/write COLR->RGB scanline */ |
898 |
|
uint32 y; |
899 |
|
{ |
900 |
|
register int x; |
901 |
|
|
902 |
< |
if (CHK(C_RFLT|C_TFLT) | !CHK(C_GRY)) |
902 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != C_GRY) |
903 |
|
quiterr("internal error 1 in Colr2Gry"); |
904 |
|
|
905 |
|
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
919 |
|
} |
920 |
|
|
921 |
|
|
922 |
< |
int |
922 |
> |
void |
923 |
|
Colr2RGB(y) /* read/convert/write COLR->RGB scanline */ |
924 |
|
uint32 y; |
925 |
|
{ |
926 |
|
COLOR ctmp; |
927 |
|
register int x; |
928 |
|
|
929 |
< |
if (CHK(C_RFLT|C_TFLT|C_GRY)) |
929 |
> |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY)) |
930 |
|
quiterr("internal error 1 in Colr2RGB"); |
931 |
|
|
932 |
|
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |