1 |
gregl |
2.9 |
/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
2 |
greg |
1.1 |
|
3 |
|
|
#ifndef lint |
4 |
gregl |
2.9 |
static char SCCSid[] = "$SunId$ SGI"; |
5 |
greg |
1.1 |
#endif |
6 |
|
|
|
7 |
|
|
/* |
8 |
gregl |
2.9 |
* Program to convert between RADIANCE and TIFF files. |
9 |
|
|
* Added experimental LogLuv encodings 7/97 (GWL). |
10 |
greg |
1.1 |
*/ |
11 |
|
|
|
12 |
|
|
#include <stdio.h> |
13 |
greg |
2.3 |
#include <math.h> |
14 |
greg |
1.1 |
#include "tiffio.h" |
15 |
|
|
#include "color.h" |
16 |
greg |
1.6 |
#include "resolu.h" |
17 |
|
|
|
18 |
greg |
2.8 |
#define GAMCOR 2.2 /* default gamma */ |
19 |
|
|
|
20 |
gregl |
2.9 |
#ifndef malloc |
21 |
|
|
extern char *malloc(); |
22 |
|
|
#endif |
23 |
|
|
/* conversion flags */ |
24 |
|
|
#define C_CXFM 0x1 /* needs color transformation */ |
25 |
|
|
#define C_GAMUT 0x2 /* needs gamut mapping */ |
26 |
|
|
#define C_GAMMA 0x4 /* needs gamma correction */ |
27 |
|
|
#define C_GRY 0x8 /* TIFF is greyscale */ |
28 |
|
|
#define C_XYZE 0x10 /* Radiance is XYZE */ |
29 |
|
|
#define C_RFLT 0x20 /* Radiance data is float */ |
30 |
|
|
#define C_TFLT 0x40 /* TIFF data is float */ |
31 |
|
|
#define C_PRIM 0x80 /* has assigned primaries */ |
32 |
greg |
1.1 |
|
33 |
gregl |
2.9 |
struct { |
34 |
|
|
uint16 flags; /* conversion flags (defined above) */ |
35 |
|
|
uint16 comp; /* TIFF compression type */ |
36 |
gregl |
2.10 |
uint16 phot; /* TIFF photometric type */ |
37 |
gregl |
2.9 |
uint16 pconf; /* TIFF planar configuration */ |
38 |
|
|
float gamcor; /* gamma correction value */ |
39 |
|
|
short bradj; /* Radiance exposure adjustment (stops) */ |
40 |
|
|
uint16 orient; /* visual orientation (TIFF spec.) */ |
41 |
gregl |
2.11 |
double stonits; /* input conversion to nits */ |
42 |
gregl |
2.9 |
float pixrat; /* pixel aspect ratio */ |
43 |
|
|
FILE *rfp; /* Radiance stream pointer */ |
44 |
|
|
TIFF *tif; /* TIFF pointer */ |
45 |
|
|
uint32 xmax, ymax; /* image dimensions */ |
46 |
|
|
COLORMAT cmat; /* color transformation matrix */ |
47 |
|
|
RGBPRIMS prims; /* RGB primaries */ |
48 |
|
|
union { |
49 |
|
|
COLR *colrs; /* 4-byte ???E pointer */ |
50 |
|
|
COLOR *colors; /* float array pointer */ |
51 |
|
|
char *p; /* generic pointer */ |
52 |
|
|
} r; /* Radiance scanline */ |
53 |
|
|
union { |
54 |
|
|
uint8 *bp; /* byte pointer */ |
55 |
|
|
float *fp; /* float pointer */ |
56 |
|
|
char *p; /* generic pointer */ |
57 |
|
|
} t; /* TIFF scanline */ |
58 |
|
|
int (*tf)(); /* translation procedure */ |
59 |
|
|
} cvts = { /* conversion structure */ |
60 |
gregl |
2.10 |
0, COMPRESSION_NONE, PHOTOMETRIC_RGB, |
61 |
|
|
PLANARCONFIG_CONTIG, GAMCOR, 0, 1, 1., 1., |
62 |
gregl |
2.9 |
}; |
63 |
greg |
1.4 |
|
64 |
gregl |
2.9 |
#define CHK(f) (cvts.flags & (f)) |
65 |
|
|
#define SET(f) (cvts.flags |= (f)) |
66 |
|
|
#define CLR(f) (cvts.flags &= ~(f)) |
67 |
|
|
#define TGL(f) (cvts.flags ^= (f)) |
68 |
greg |
1.5 |
|
69 |
gregl |
2.9 |
int Luv2Color(), L2Color(), RGB2Colr(), Gry2Colr(); |
70 |
|
|
int Color2Luv(), Color2L(), Colr2RGB(), Colr2Gry(); |
71 |
greg |
1.1 |
|
72 |
gregl |
2.9 |
short ortab[8] = { /* orientation conversion table */ |
73 |
|
|
YMAJOR|YDECR, |
74 |
|
|
YMAJOR|YDECR|XDECR, |
75 |
|
|
YMAJOR|XDECR, |
76 |
|
|
YMAJOR, |
77 |
|
|
YDECR, |
78 |
|
|
XDECR|YDECR, |
79 |
|
|
XDECR, |
80 |
|
|
0 |
81 |
|
|
}; |
82 |
greg |
1.1 |
|
83 |
gregl |
2.9 |
#define pixorder() ortab[cvts.orient-1] |
84 |
|
|
|
85 |
greg |
1.1 |
char *progname; |
86 |
|
|
|
87 |
|
|
|
88 |
|
|
main(argc, argv) |
89 |
|
|
int argc; |
90 |
|
|
char *argv[]; |
91 |
|
|
{ |
92 |
|
|
int reverse = 0; |
93 |
|
|
int i; |
94 |
|
|
|
95 |
|
|
progname = argv[0]; |
96 |
|
|
|
97 |
|
|
for (i = 1; i < argc; i++) |
98 |
|
|
if (argv[i][0] == '-') |
99 |
|
|
switch (argv[i][1]) { |
100 |
gregl |
2.9 |
case 'g': /* gamma correction */ |
101 |
|
|
cvts.gamcor = atof(argv[++i]); |
102 |
greg |
1.1 |
break; |
103 |
gregl |
2.9 |
case 'x': /* XYZE Radiance output */ |
104 |
|
|
TGL(C_XYZE); |
105 |
greg |
1.4 |
break; |
106 |
gregl |
2.9 |
case 'z': /* LZW compressed output */ |
107 |
|
|
cvts.comp = COMPRESSION_LZW; |
108 |
greg |
1.5 |
break; |
109 |
gregl |
2.9 |
case 'L': /* LogLuv 32-bit output */ |
110 |
gregl |
2.10 |
cvts.comp = COMPRESSION_SGILOG; |
111 |
|
|
cvts.phot = PHOTOMETRIC_LOGLUV; |
112 |
gregl |
2.9 |
break; |
113 |
|
|
case 'l': /* LogLuv 24-bit output */ |
114 |
gregl |
2.10 |
cvts.comp = COMPRESSION_SGILOG24; |
115 |
|
|
cvts.phot = PHOTOMETRIC_LOGLUV; |
116 |
gregl |
2.9 |
break; |
117 |
|
|
case 'b': /* greyscale output? */ |
118 |
|
|
TGL(C_GRY); |
119 |
|
|
break; |
120 |
|
|
case 'e': /* exposure adjustment */ |
121 |
greg |
1.1 |
if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
122 |
|
|
goto userr; |
123 |
gregl |
2.9 |
cvts.bradj = atoi(argv[++i]); |
124 |
greg |
1.1 |
break; |
125 |
gregl |
2.9 |
case 'r': /* reverse conversion? */ |
126 |
greg |
1.1 |
reverse = !reverse; |
127 |
|
|
break; |
128 |
|
|
case '\0': |
129 |
|
|
goto doneopts; |
130 |
|
|
default: |
131 |
|
|
goto userr; |
132 |
|
|
} |
133 |
|
|
else |
134 |
|
|
break; |
135 |
|
|
doneopts: |
136 |
gregl |
2.9 |
if (reverse) { |
137 |
greg |
1.1 |
|
138 |
|
|
if (i != argc-2 && i != argc-1) |
139 |
|
|
goto userr; |
140 |
gregl |
2.9 |
|
141 |
|
|
tiff2ra(i, argv); |
142 |
|
|
|
143 |
|
|
} else { |
144 |
|
|
|
145 |
greg |
1.1 |
if (i != argc-2) |
146 |
|
|
goto userr; |
147 |
|
|
|
148 |
gregl |
2.10 |
if (CHK(C_GRY)) /* consistency corrections */ |
149 |
|
|
if (cvts.phot == PHOTOMETRIC_RGB) |
150 |
|
|
cvts.phot = PHOTOMETRIC_MINISBLACK; |
151 |
|
|
else { |
152 |
|
|
cvts.phot = PHOTOMETRIC_LOGL; |
153 |
|
|
cvts.comp = COMPRESSION_SGILOG; |
154 |
|
|
} |
155 |
gregl |
2.9 |
|
156 |
|
|
ra2tiff(i, argv); |
157 |
|
|
} |
158 |
|
|
|
159 |
greg |
1.1 |
exit(0); |
160 |
|
|
userr: |
161 |
greg |
1.4 |
fprintf(stderr, |
162 |
gregl |
2.9 |
"Usage: %s [-z|-L|-l][-b][-e +/-stops][-g gamma] {in.pic|-} out.tif\n", |
163 |
greg |
1.1 |
progname); |
164 |
gregl |
2.9 |
fprintf(stderr, |
165 |
|
|
" Or: %s -r [-x][-e +/-stops][-g gamma] in.tif [out.pic|-]\n", |
166 |
|
|
progname); |
167 |
greg |
1.1 |
exit(1); |
168 |
|
|
} |
169 |
|
|
|
170 |
|
|
|
171 |
|
|
quiterr(err) /* print message and exit */ |
172 |
|
|
char *err; |
173 |
|
|
{ |
174 |
|
|
if (err != NULL) { |
175 |
|
|
fprintf(stderr, "%s: %s\n", progname, err); |
176 |
|
|
exit(1); |
177 |
|
|
} |
178 |
|
|
exit(0); |
179 |
|
|
} |
180 |
|
|
|
181 |
|
|
|
182 |
gregl |
2.9 |
allocbufs() /* allocate scanline buffers */ |
183 |
greg |
1.1 |
{ |
184 |
gregl |
2.9 |
int rsiz, tsiz; |
185 |
|
|
|
186 |
|
|
rsiz = CHK(C_RFLT) ? sizeof(COLOR) : sizeof(COLR); |
187 |
|
|
tsiz = (CHK(C_TFLT) ? sizeof(float) : sizeof(uint8)) * |
188 |
|
|
(CHK(C_GRY) ? 1 : 3); |
189 |
|
|
cvts.r.p = (char *)malloc(rsiz*cvts.xmax); |
190 |
|
|
cvts.t.p = (char *)malloc(tsiz*cvts.xmax); |
191 |
|
|
if (cvts.r.p == NULL | cvts.t.p == NULL) |
192 |
|
|
quiterr("no memory to allocate scanline buffers"); |
193 |
|
|
} |
194 |
|
|
|
195 |
|
|
|
196 |
|
|
initfromtif() /* initialize conversion from TIFF input */ |
197 |
|
|
{ |
198 |
|
|
uint16 hi; |
199 |
|
|
float *fa, f1, f2; |
200 |
|
|
|
201 |
|
|
CLR(C_GRY|C_GAMMA|C_PRIM|C_RFLT|C_TFLT|C_CXFM); |
202 |
|
|
|
203 |
|
|
TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_PLANARCONFIG, &cvts.pconf); |
204 |
|
|
|
205 |
|
|
if (TIFFGetField(cvts.tif, TIFFTAG_PRIMARYCHROMATICITIES, &fa)) { |
206 |
|
|
cvts.prims[RED][CIEX] = fa[0]; |
207 |
|
|
cvts.prims[RED][CIEY] = fa[1]; |
208 |
|
|
cvts.prims[GRN][CIEX] = fa[2]; |
209 |
|
|
cvts.prims[GRN][CIEY] = fa[3]; |
210 |
|
|
cvts.prims[BLU][CIEX] = fa[4]; |
211 |
|
|
cvts.prims[BLU][CIEY] = fa[5]; |
212 |
|
|
cvts.prims[WHT][CIEX] = 1./3.; |
213 |
|
|
cvts.prims[WHT][CIEY] = 1./3.; |
214 |
|
|
if (TIFFGetField(cvts.tif, TIFFTAG_WHITEPOINT, &fa)) { |
215 |
|
|
cvts.prims[WHT][CIEX] = fa[0]; |
216 |
|
|
cvts.prims[WHT][CIEY] = fa[1]; |
217 |
|
|
} |
218 |
|
|
SET(C_PRIM); |
219 |
|
|
} |
220 |
|
|
|
221 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_COMPRESSION, &cvts.comp)) |
222 |
|
|
cvts.comp = COMPRESSION_NONE; |
223 |
|
|
|
224 |
|
|
if (TIFFGetField(cvts.tif, TIFFTAG_XRESOLUTION, &f1) && |
225 |
|
|
TIFFGetField(cvts.tif, TIFFTAG_YRESOLUTION, &f2)) |
226 |
|
|
cvts.pixrat = f1/f2; |
227 |
|
|
|
228 |
gregl |
2.10 |
TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_ORIENTATION, &cvts.orient); |
229 |
gregl |
2.9 |
|
230 |
gregl |
2.10 |
if (!TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_PHOTOMETRIC, &cvts.phot)) |
231 |
|
|
quiterr("TIFF has unspecified photometric type"); |
232 |
|
|
|
233 |
|
|
switch (cvts.phot) { |
234 |
|
|
case PHOTOMETRIC_LOGLUV: |
235 |
gregl |
2.9 |
SET(C_RFLT|C_TFLT); |
236 |
|
|
if (!CHK(C_XYZE)) { |
237 |
|
|
cpcolormat(cvts.cmat, xyz2rgbmat); |
238 |
|
|
SET(C_CXFM|C_GAMUT); |
239 |
gregl |
2.10 |
} else if (cvts.comp == COMPRESSION_SGILOG) |
240 |
gregl |
2.9 |
SET(C_GAMUT); |
241 |
|
|
if (cvts.pconf != PLANARCONFIG_CONTIG) |
242 |
|
|
quiterr("cannot handle separate Luv planes"); |
243 |
gregl |
2.10 |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
244 |
gregl |
2.12 |
SGILOGDATAFMT_FLOAT); |
245 |
gregl |
2.9 |
cvts.tf = Luv2Color; |
246 |
|
|
break; |
247 |
gregl |
2.10 |
case PHOTOMETRIC_LOGL: |
248 |
|
|
SET(C_GRY|C_RFLT|C_TFLT|C_GAMUT); |
249 |
|
|
cvts.pconf = PLANARCONFIG_CONTIG; |
250 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
251 |
gregl |
2.12 |
SGILOGDATAFMT_FLOAT); |
252 |
gregl |
2.10 |
cvts.tf = L2Color; |
253 |
|
|
break; |
254 |
gregl |
2.11 |
case PHOTOMETRIC_YCBCR: |
255 |
|
|
if (cvts.comp == COMPRESSION_JPEG && |
256 |
|
|
cvts.pconf == PLANARCONFIG_CONTIG) { |
257 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_JPEGCOLORMODE, |
258 |
|
|
JPEGCOLORMODE_RGB); |
259 |
|
|
cvts.phot = PHOTOMETRIC_RGB; |
260 |
|
|
} else |
261 |
|
|
quiterr("unsupported photometric type"); |
262 |
|
|
/* fall through */ |
263 |
gregl |
2.10 |
case PHOTOMETRIC_RGB: |
264 |
gregl |
2.9 |
SET(C_GAMMA|C_GAMUT); |
265 |
|
|
setcolrgam(cvts.gamcor); |
266 |
|
|
if (CHK(C_XYZE)) { |
267 |
|
|
comprgb2xyzmat(cvts.cmat, |
268 |
|
|
CHK(C_PRIM) ? cvts.prims : stdprims); |
269 |
|
|
SET(C_CXFM); |
270 |
|
|
} |
271 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
272 |
gregl |
2.10 |
hi != 3) |
273 |
|
|
quiterr("unsupported samples per pixel for RGB"); |
274 |
gregl |
2.9 |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi) || |
275 |
|
|
hi != 8) |
276 |
gregl |
2.10 |
quiterr("unsupported bits per sample for RGB"); |
277 |
|
|
cvts.tf = RGB2Colr; |
278 |
gregl |
2.9 |
break; |
279 |
gregl |
2.10 |
case PHOTOMETRIC_MINISBLACK: |
280 |
|
|
SET(C_GRY|C_GAMMA|C_GAMUT); |
281 |
gregl |
2.15 |
setcolrgam(cvts.gamcor); |
282 |
gregl |
2.10 |
cvts.pconf = PLANARCONFIG_CONTIG; |
283 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
284 |
|
|
hi != 1) |
285 |
|
|
quiterr("unsupported samples per pixel for greyscale"); |
286 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi) || |
287 |
|
|
hi != 8) |
288 |
|
|
quiterr("unsupported bits per sample for greyscale"); |
289 |
|
|
cvts.tf = Gry2Colr; |
290 |
|
|
break; |
291 |
|
|
default: |
292 |
|
|
quiterr("unsupported photometric type"); |
293 |
|
|
break; |
294 |
gregl |
2.9 |
} |
295 |
|
|
|
296 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_IMAGEWIDTH, &cvts.xmax) || |
297 |
|
|
!TIFFGetField(cvts.tif, TIFFTAG_IMAGELENGTH, &cvts.ymax)) |
298 |
greg |
1.1 |
quiterr("unknown input image resolution"); |
299 |
gregl |
2.9 |
|
300 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_STONITS, &cvts.stonits)) |
301 |
|
|
cvts.stonits = 1.; |
302 |
|
|
/* add to Radiance header */ |
303 |
|
|
if (cvts.pixrat < .99 || cvts.pixrat > 1.01) |
304 |
|
|
fputaspect(cvts.pixrat, cvts.rfp); |
305 |
|
|
if (CHK(C_XYZE)) { |
306 |
|
|
fputexpos(pow(2.,(double)cvts.bradj)/cvts.stonits, cvts.rfp); |
307 |
|
|
fputformat(CIEFMT, cvts.rfp); |
308 |
|
|
} else { |
309 |
|
|
if (CHK(C_PRIM)) |
310 |
|
|
fputprims(cvts.prims, cvts.rfp); |
311 |
|
|
fputexpos(WHTEFFICACY*pow(2.,(double)cvts.bradj)/cvts.stonits, |
312 |
|
|
cvts.rfp); |
313 |
|
|
fputformat(COLRFMT, cvts.rfp); |
314 |
|
|
} |
315 |
|
|
|
316 |
|
|
allocbufs(); /* allocate scanline buffers */ |
317 |
|
|
} |
318 |
|
|
|
319 |
|
|
|
320 |
|
|
tiff2ra(ac, av) /* convert TIFF image to Radiance picture */ |
321 |
|
|
int ac; |
322 |
|
|
char *av[]; |
323 |
|
|
{ |
324 |
|
|
int32 y; |
325 |
|
|
/* open TIFF input */ |
326 |
|
|
if ((cvts.tif = TIFFOpen(av[ac], "r")) == NULL) |
327 |
|
|
quiterr("cannot open TIFF input"); |
328 |
|
|
/* open Radiance output */ |
329 |
|
|
if (av[ac+1] == NULL || !strcmp(av[ac+1], "-")) |
330 |
|
|
cvts.rfp = stdout; |
331 |
|
|
else if ((cvts.rfp = fopen(av[ac+1], "w")) == NULL) |
332 |
|
|
quiterr("cannot open Radiance output picture"); |
333 |
|
|
/* start output header */ |
334 |
|
|
newheader("RADIANCE", cvts.rfp); |
335 |
|
|
printargs(ac, av, cvts.rfp); |
336 |
|
|
|
337 |
|
|
initfromtif(); /* initialize conversion */ |
338 |
|
|
|
339 |
|
|
fputc('\n', cvts.rfp); /* finish Radiance header */ |
340 |
|
|
fputresolu(pixorder(), (int)cvts.xmax, (int)cvts.ymax, cvts.rfp); |
341 |
|
|
|
342 |
|
|
for (y = 0; y < cvts.ymax; y++) /* convert image */ |
343 |
|
|
(*cvts.tf)(y); |
344 |
|
|
/* clean up */ |
345 |
|
|
fclose(cvts.rfp); |
346 |
|
|
TIFFClose(cvts.tif); |
347 |
|
|
} |
348 |
|
|
|
349 |
|
|
|
350 |
|
|
int |
351 |
|
|
headline(s) /* process Radiance input header line */ |
352 |
|
|
char *s; |
353 |
|
|
{ |
354 |
|
|
char fmt[32]; |
355 |
|
|
|
356 |
|
|
if (formatval(fmt, s)) { |
357 |
|
|
if (!strcmp(fmt, COLRFMT)) |
358 |
|
|
CLR(C_XYZE); |
359 |
|
|
else if (!strcmp(fmt, CIEFMT)) |
360 |
|
|
SET(C_XYZE); |
361 |
|
|
else |
362 |
|
|
quiterr("unrecognized input picture format"); |
363 |
gwlarson |
2.17 |
return(1); |
364 |
gregl |
2.9 |
} |
365 |
|
|
if (isexpos(s)) { |
366 |
|
|
cvts.stonits /= exposval(s); |
367 |
gwlarson |
2.17 |
return(1); |
368 |
gregl |
2.9 |
} |
369 |
|
|
if (isaspect(s)) { |
370 |
|
|
cvts.pixrat *= aspectval(s); |
371 |
gwlarson |
2.17 |
return(1); |
372 |
gregl |
2.9 |
} |
373 |
|
|
if (isprims(s)) { |
374 |
|
|
primsval(cvts.prims, s); |
375 |
|
|
SET(C_PRIM); |
376 |
gwlarson |
2.17 |
return(1); |
377 |
gregl |
2.9 |
} |
378 |
gwlarson |
2.17 |
return(0); |
379 |
gregl |
2.9 |
} |
380 |
|
|
|
381 |
|
|
|
382 |
|
|
initfromrad() /* initialize input from a Radiance picture */ |
383 |
|
|
{ |
384 |
|
|
int i1, i2, po; |
385 |
|
|
/* read Radiance header */ |
386 |
|
|
CLR(C_RFLT|C_TFLT|C_XYZE|C_PRIM|C_GAMMA|C_CXFM); |
387 |
|
|
cvts.stonits = 1.; |
388 |
|
|
cvts.pixrat = 1.; |
389 |
|
|
cvts.pconf = PLANARCONFIG_CONTIG; |
390 |
|
|
getheader(cvts.rfp, headline, NULL); |
391 |
|
|
if ((po = fgetresolu(&i1, &i2, cvts.rfp)) < 0) |
392 |
|
|
quiterr("bad Radiance picture"); |
393 |
|
|
cvts.xmax = i1; cvts.ymax = i2; |
394 |
|
|
for (i1 = 0; i1 < 8; i1++) /* interpret orientation */ |
395 |
|
|
if (ortab[i1] == po) { |
396 |
|
|
cvts.orient = i1 + 1; |
397 |
|
|
break; |
398 |
greg |
1.1 |
} |
399 |
gregl |
2.9 |
if (i1 >= 8) |
400 |
|
|
quiterr("internal error 1 in initfromrad"); |
401 |
|
|
if (!(po & YMAJOR)) |
402 |
|
|
cvts.pixrat = 1./cvts.pixrat; |
403 |
|
|
if (!CHK(C_XYZE)) |
404 |
|
|
cvts.stonits *= WHTEFFICACY; |
405 |
|
|
/* set up conversion */ |
406 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_COMPRESSION, cvts.comp); |
407 |
gregl |
2.10 |
TIFFSetField(cvts.tif, TIFFTAG_PHOTOMETRIC, cvts.phot); |
408 |
gregl |
2.9 |
|
409 |
gregl |
2.10 |
switch (cvts.phot) { |
410 |
|
|
case PHOTOMETRIC_LOGLUV: |
411 |
gregl |
2.9 |
SET(C_RFLT|C_TFLT); |
412 |
|
|
CLR(C_GRY); |
413 |
|
|
if (!CHK(C_XYZE)) { |
414 |
|
|
cpcolormat(cvts.cmat, rgb2xyzmat); |
415 |
|
|
SET(C_CXFM); |
416 |
|
|
} |
417 |
gregl |
2.10 |
if (cvts.comp != COMPRESSION_SGILOG && |
418 |
|
|
cvts.comp != COMPRESSION_SGILOG24) |
419 |
|
|
quiterr("internal error 2 in initfromrad"); |
420 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
421 |
gregl |
2.12 |
SGILOGDATAFMT_FLOAT); |
422 |
gregl |
2.9 |
cvts.tf = Color2Luv; |
423 |
|
|
break; |
424 |
gregl |
2.10 |
case PHOTOMETRIC_LOGL: |
425 |
|
|
SET(C_GRY|C_RFLT|C_TFLT); |
426 |
|
|
if (cvts.comp != COMPRESSION_SGILOG) |
427 |
|
|
quiterr("internal error 3 in initfromrad"); |
428 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
429 |
gregl |
2.12 |
SGILOGDATAFMT_FLOAT); |
430 |
gregl |
2.10 |
cvts.tf = Color2L; |
431 |
|
|
break; |
432 |
|
|
case PHOTOMETRIC_RGB: |
433 |
gregl |
2.9 |
SET(C_GAMMA|C_GAMUT); |
434 |
gregl |
2.10 |
CLR(C_GRY); |
435 |
gregl |
2.9 |
setcolrgam(cvts.gamcor); |
436 |
|
|
if (CHK(C_XYZE)) { |
437 |
|
|
compxyz2rgbmat(cvts.cmat, |
438 |
|
|
CHK(C_PRIM) ? cvts.prims : stdprims); |
439 |
|
|
SET(C_CXFM); |
440 |
|
|
} |
441 |
|
|
if (CHK(C_PRIM)) { |
442 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_PRIMARYCHROMATICITIES, |
443 |
|
|
(float *)cvts.prims); |
444 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_WHITEPOINT, |
445 |
|
|
(float *)cvts.prims[WHT]); |
446 |
|
|
} |
447 |
gregl |
2.10 |
cvts.tf = Colr2RGB; |
448 |
gregl |
2.9 |
break; |
449 |
gregl |
2.10 |
case PHOTOMETRIC_MINISBLACK: |
450 |
|
|
SET(C_GRY|C_GAMMA|C_GAMUT); |
451 |
|
|
setcolrgam(cvts.gamcor); |
452 |
|
|
cvts.tf = Colr2Gry; |
453 |
|
|
break; |
454 |
|
|
default: |
455 |
|
|
quiterr("internal error 4 in initfromrad"); |
456 |
|
|
break; |
457 |
greg |
1.1 |
} |
458 |
gregl |
2.9 |
/* set other TIFF fields */ |
459 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_IMAGEWIDTH, cvts.xmax); |
460 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_IMAGELENGTH, cvts.ymax); |
461 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, CHK(C_GRY) ? 1 : 3); |
462 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, CHK(C_TFLT) ? 32 : 8); |
463 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_XRESOLUTION, 72.); |
464 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_YRESOLUTION, 72./cvts.pixrat); |
465 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_ORIENTATION, cvts.orient); |
466 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_RESOLUTIONUNIT, 2); |
467 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_PLANARCONFIG, cvts.pconf); |
468 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_STONITS, |
469 |
|
|
cvts.stonits/pow(2.,(double)cvts.bradj)); |
470 |
gregl |
2.10 |
if (cvts.comp == COMPRESSION_NONE) |
471 |
|
|
i1 = TIFFScanlineSize(cvts.tif); |
472 |
|
|
else |
473 |
|
|
i1 = 3*cvts.xmax; /* conservative guess */ |
474 |
gregl |
2.9 |
i2 = 8192/i1; /* compute good strip size */ |
475 |
|
|
if (i2 < 1) i2 = 1; |
476 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_ROWSPERSTRIP, (uint32)i2); |
477 |
|
|
|
478 |
|
|
allocbufs(); /* allocate scanline buffers */ |
479 |
|
|
} |
480 |
|
|
|
481 |
|
|
|
482 |
|
|
ra2tiff(ac, av) /* convert Radiance picture to TIFF image */ |
483 |
|
|
int ac; |
484 |
|
|
char *av[]; |
485 |
|
|
{ |
486 |
|
|
uint32 y; |
487 |
|
|
/* open Radiance file */ |
488 |
|
|
if (!strcmp(av[ac], "-")) |
489 |
|
|
cvts.rfp = stdin; |
490 |
|
|
else if ((cvts.rfp = fopen(av[ac], "r")) == NULL) |
491 |
|
|
quiterr("cannot open Radiance input picture"); |
492 |
|
|
/* open TIFF file */ |
493 |
|
|
if ((cvts.tif = TIFFOpen(av[ac+1], "w")) == NULL) |
494 |
|
|
quiterr("cannot open TIFF output"); |
495 |
|
|
|
496 |
|
|
initfromrad(); /* initialize conversion */ |
497 |
|
|
|
498 |
|
|
for (y = 0; y < cvts.ymax; y++) /* convert image */ |
499 |
|
|
(*cvts.tf)(y); |
500 |
greg |
1.1 |
/* clean up */ |
501 |
gregl |
2.9 |
TIFFClose(cvts.tif); |
502 |
|
|
fclose(cvts.rfp); |
503 |
|
|
} |
504 |
|
|
|
505 |
|
|
|
506 |
|
|
int |
507 |
|
|
Luv2Color(y) /* read/convert/write Luv->COLOR scanline */ |
508 |
|
|
uint32 y; |
509 |
|
|
{ |
510 |
|
|
register int x; |
511 |
|
|
|
512 |
|
|
if (CHK(C_RFLT|C_TFLT) != (C_RFLT|C_TFLT) | CHK(C_GRY)) |
513 |
|
|
quiterr("internal error 1 in Luv2Color"); |
514 |
|
|
|
515 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
516 |
|
|
quiterr("error reading TIFF input"); |
517 |
|
|
|
518 |
|
|
for (x = cvts.xmax; x--; ) { |
519 |
gwlarson |
2.16 |
colval(cvts.r.colors[x],CIEX) = cvts.t.fp[3*x]; |
520 |
|
|
colval(cvts.r.colors[x],CIEY) = cvts.t.fp[3*x + 1]; |
521 |
|
|
colval(cvts.r.colors[x],CIEZ) = cvts.t.fp[3*x + 2]; |
522 |
gregl |
2.9 |
if (CHK(C_CXFM)) |
523 |
|
|
colortrans(cvts.r.colors[x], cvts.cmat, |
524 |
|
|
cvts.r.colors[x]); |
525 |
|
|
if (CHK(C_GAMUT)) |
526 |
|
|
clipgamut(cvts.r.colors[x], cvts.t.fp[3*x + 1], |
527 |
|
|
CGAMUT_LOWER, cblack, cwhite); |
528 |
|
|
} |
529 |
|
|
if (cvts.bradj) { |
530 |
|
|
double m = pow(2.,(double)cvts.bradj); |
531 |
|
|
for (x = cvts.xmax; x--; ) |
532 |
|
|
scalecolor(cvts.r.colors[x], m); |
533 |
|
|
} |
534 |
|
|
|
535 |
|
|
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
536 |
|
|
quiterr("error writing Radiance picture"); |
537 |
|
|
} |
538 |
|
|
|
539 |
|
|
|
540 |
|
|
int |
541 |
|
|
L2Color(y) /* read/convert/write L16->COLOR scanline */ |
542 |
|
|
uint32 y; |
543 |
|
|
{ |
544 |
|
|
register int x; |
545 |
|
|
|
546 |
|
|
if (CHK(C_RFLT|C_TFLT|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
547 |
|
|
quiterr("internal error 1 in L2Color"); |
548 |
|
|
|
549 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
550 |
|
|
quiterr("error reading TIFF input"); |
551 |
|
|
|
552 |
|
|
for (x = cvts.xmax; x--; ) |
553 |
gwlarson |
2.16 |
colval(cvts.r.colors[x],RED) = |
554 |
|
|
colval(cvts.r.colors[x],GRN) = |
555 |
|
|
colval(cvts.r.colors[x],BLU) = |
556 |
|
|
cvts.t.fp[x] > 0. ? cvts.t.fp[x] : 0.; |
557 |
gregl |
2.9 |
|
558 |
|
|
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
559 |
|
|
quiterr("error writing Radiance picture"); |
560 |
|
|
} |
561 |
|
|
|
562 |
|
|
|
563 |
|
|
int |
564 |
|
|
RGB2Colr(y) /* read/convert/write RGB->COLR scanline */ |
565 |
|
|
uint32 y; |
566 |
|
|
{ |
567 |
|
|
COLOR ctmp; |
568 |
|
|
register int x; |
569 |
|
|
|
570 |
|
|
if (CHK(C_RFLT|C_TFLT|C_GRY)) |
571 |
|
|
quiterr("internal error 1 in RGB2Colr"); |
572 |
|
|
|
573 |
|
|
if (cvts.pconf == PLANARCONFIG_CONTIG) { |
574 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
575 |
|
|
goto readerr; |
576 |
|
|
for (x = cvts.xmax; x--; ) { |
577 |
|
|
cvts.r.colrs[x][RED] = cvts.t.bp[3*x]; |
578 |
|
|
cvts.r.colrs[x][GRN] = cvts.t.bp[3*x + 1]; |
579 |
|
|
cvts.r.colrs[x][BLU] = cvts.t.bp[3*x + 2]; |
580 |
|
|
} |
581 |
|
|
} else { |
582 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
583 |
|
|
goto readerr; |
584 |
|
|
if (TIFFReadScanline(cvts.tif, |
585 |
gregl |
2.14 |
(tdata_t)(cvts.t.bp + cvts.xmax), y, 1) < 0) |
586 |
gregl |
2.9 |
goto readerr; |
587 |
|
|
if (TIFFReadScanline(cvts.tif, |
588 |
gregl |
2.14 |
(tdata_t)(cvts.t.bp + 2*cvts.xmax), y, 2) < 0) |
589 |
gregl |
2.9 |
goto readerr; |
590 |
|
|
for (x = cvts.xmax; x--; ) { |
591 |
|
|
cvts.r.colrs[x][RED] = cvts.t.bp[x]; |
592 |
|
|
cvts.r.colrs[x][GRN] = cvts.t.bp[cvts.xmax + x]; |
593 |
|
|
cvts.r.colrs[x][BLU] = cvts.t.bp[2*cvts.xmax + x]; |
594 |
|
|
} |
595 |
|
|
} |
596 |
|
|
|
597 |
|
|
gambs_colrs(cvts.r.colrs, cvts.xmax); |
598 |
|
|
if (CHK(C_CXFM)) |
599 |
|
|
for (x = cvts.xmax; x--; ) { |
600 |
|
|
colr_color(ctmp, cvts.r.colrs[x]); |
601 |
|
|
colortrans(ctmp, cvts.cmat, ctmp); |
602 |
|
|
if (CHK(C_GAMUT)) /* !CHK(C_XYZE) */ |
603 |
|
|
clipgamut(ctmp, bright(ctmp), CGAMUT_LOWER, |
604 |
|
|
cblack, cwhite); |
605 |
|
|
setcolr(cvts.r.colrs[x], colval(ctmp,RED), |
606 |
|
|
colval(ctmp,GRN), colval(ctmp,BLU)); |
607 |
|
|
} |
608 |
|
|
if (cvts.bradj) |
609 |
|
|
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
610 |
|
|
|
611 |
|
|
if (fwritecolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
612 |
|
|
quiterr("error writing Radiance picture"); |
613 |
greg |
1.1 |
return; |
614 |
|
|
readerr: |
615 |
|
|
quiterr("error reading TIFF input"); |
616 |
|
|
} |
617 |
|
|
|
618 |
|
|
|
619 |
gregl |
2.9 |
int |
620 |
|
|
Gry2Colr(y) /* read/convert/write G8->COLR scanline */ |
621 |
|
|
uint32 y; |
622 |
greg |
1.1 |
{ |
623 |
|
|
register int x; |
624 |
gregl |
2.9 |
|
625 |
|
|
if (CHK(C_RFLT|C_TFLT) | !CHK(C_GRY)) |
626 |
|
|
quiterr("internal error 1 in Gry2Colr"); |
627 |
|
|
|
628 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
629 |
|
|
quiterr("error reading TIFF input"); |
630 |
|
|
|
631 |
|
|
for (x = cvts.xmax; x--; ) |
632 |
|
|
cvts.r.colrs[x][RED] = |
633 |
|
|
cvts.r.colrs[x][GRN] = |
634 |
|
|
cvts.r.colrs[x][BLU] = cvts.t.bp[x]; |
635 |
|
|
|
636 |
|
|
gambs_colrs(cvts.r.colrs, cvts.xmax); |
637 |
|
|
if (cvts.bradj) |
638 |
|
|
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
639 |
|
|
|
640 |
|
|
if (fwritecolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
641 |
|
|
quiterr("error writing Radiance picture"); |
642 |
|
|
} |
643 |
|
|
|
644 |
|
|
|
645 |
|
|
int |
646 |
|
|
Color2L(y) /* read/convert/write COLOR->L16 scanline */ |
647 |
|
|
uint32 y; |
648 |
|
|
{ |
649 |
|
|
double m = pow(2.,(double)cvts.bradj); |
650 |
|
|
register int x; |
651 |
|
|
|
652 |
gregl |
2.13 |
if (CHK(C_RFLT|C_TFLT|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
653 |
gregl |
2.9 |
quiterr("internal error 1 in Color2L"); |
654 |
|
|
|
655 |
|
|
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
656 |
|
|
quiterr("error reading Radiance picture"); |
657 |
|
|
|
658 |
|
|
for (x = cvts.xmax; x--; ) |
659 |
|
|
cvts.t.fp[x] = m*( CHK(C_XYZE) ? colval(cvts.r.colors[x],CIEY) |
660 |
|
|
: bright(cvts.r.colors[x]) ); |
661 |
|
|
|
662 |
|
|
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
663 |
|
|
quiterr("error writing TIFF output"); |
664 |
|
|
} |
665 |
|
|
|
666 |
|
|
|
667 |
|
|
int |
668 |
|
|
Color2Luv(y) /* read/convert/write COLOR->Luv scanline */ |
669 |
|
|
uint32 y; |
670 |
|
|
{ |
671 |
|
|
register int x; |
672 |
|
|
|
673 |
|
|
if (CHK(C_RFLT|C_TFLT) != (C_RFLT|C_TFLT) | CHK(C_GRY)) |
674 |
|
|
quiterr("internal error 1 in Color2Luv"); |
675 |
|
|
|
676 |
|
|
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
677 |
|
|
quiterr("error reading Radiance picture"); |
678 |
|
|
|
679 |
|
|
if (CHK(C_CXFM)) |
680 |
|
|
for (x = cvts.xmax; x--; ) |
681 |
|
|
colortrans(cvts.r.colors[x], cvts.cmat, |
682 |
|
|
cvts.r.colors[x]); |
683 |
|
|
if (cvts.bradj) { |
684 |
|
|
double m = pow(2.,(double)cvts.bradj); |
685 |
|
|
for (x = cvts.xmax; x--; ) |
686 |
|
|
scalecolor(cvts.r.colors[x], m); |
687 |
|
|
} |
688 |
|
|
|
689 |
|
|
for (x = cvts.xmax; x--; ) { |
690 |
gwlarson |
2.16 |
cvts.t.fp[3*x] = colval(cvts.r.colors[x],CIEX); |
691 |
|
|
cvts.t.fp[3*x+1] = colval(cvts.r.colors[x],CIEY); |
692 |
|
|
cvts.t.fp[3*x+2] = colval(cvts.r.colors[x],CIEZ); |
693 |
gregl |
2.9 |
} |
694 |
|
|
|
695 |
|
|
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
696 |
|
|
quiterr("error writing TIFF output"); |
697 |
|
|
} |
698 |
|
|
|
699 |
|
|
|
700 |
|
|
int |
701 |
|
|
Colr2Gry(y) /* read/convert/write COLR->RGB scanline */ |
702 |
|
|
uint32 y; |
703 |
|
|
{ |
704 |
|
|
register int x; |
705 |
|
|
|
706 |
|
|
if (CHK(C_RFLT|C_TFLT) | !CHK(C_GRY)) |
707 |
|
|
quiterr("internal error 1 in Colr2Gry"); |
708 |
|
|
|
709 |
|
|
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
710 |
|
|
quiterr("error reading Radiance picture"); |
711 |
|
|
|
712 |
|
|
if (cvts.bradj) |
713 |
|
|
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
714 |
|
|
for (x = cvts.xmax; x--; ) |
715 |
|
|
colval(cvts.r.colrs[x],CIEY) = normbright(cvts.r.colrs[x]); |
716 |
|
|
colrs_gambs(cvts.r.colrs, cvts.xmax); |
717 |
|
|
|
718 |
|
|
for (x = cvts.xmax; x--; ) |
719 |
|
|
cvts.t.bp[x] = colval(cvts.r.colrs[x],CIEY); |
720 |
|
|
|
721 |
|
|
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
722 |
|
|
quiterr("error writing TIFF output"); |
723 |
|
|
} |
724 |
|
|
|
725 |
|
|
|
726 |
|
|
int |
727 |
|
|
Colr2RGB(y) /* read/convert/write COLR->RGB scanline */ |
728 |
|
|
uint32 y; |
729 |
|
|
{ |
730 |
|
|
COLOR ctmp; |
731 |
|
|
register int x; |
732 |
|
|
|
733 |
|
|
if (CHK(C_RFLT|C_TFLT|C_GRY)) |
734 |
|
|
quiterr("internal error 1 in Colr2RGB"); |
735 |
|
|
|
736 |
|
|
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
737 |
|
|
quiterr("error reading Radiance picture"); |
738 |
|
|
|
739 |
|
|
if (cvts.bradj) |
740 |
|
|
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
741 |
|
|
if (CHK(C_CXFM)) |
742 |
|
|
for (x = cvts.xmax; x--; ) { |
743 |
|
|
colr_color(ctmp, cvts.r.colrs[x]); |
744 |
|
|
colortrans(ctmp, cvts.cmat, ctmp); |
745 |
|
|
if (CHK(C_GAMUT)) |
746 |
|
|
clipgamut(ctmp, bright(ctmp), CGAMUT, |
747 |
|
|
cblack, cwhite); |
748 |
|
|
setcolr(cvts.r.colrs[x], colval(ctmp,RED), |
749 |
|
|
colval(ctmp,GRN), colval(ctmp,BLU)); |
750 |
greg |
1.1 |
} |
751 |
gregl |
2.9 |
colrs_gambs(cvts.r.colrs, cvts.xmax); |
752 |
|
|
|
753 |
|
|
for (x = cvts.xmax; x--; ) { |
754 |
|
|
cvts.t.bp[3*x] = cvts.r.colrs[x][RED]; |
755 |
|
|
cvts.t.bp[3*x+1] = cvts.r.colrs[x][GRN]; |
756 |
|
|
cvts.t.bp[3*x+2] = cvts.r.colrs[x][BLU]; |
757 |
greg |
1.1 |
} |
758 |
gregl |
2.9 |
|
759 |
|
|
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
760 |
|
|
quiterr("error writing TIFF output"); |
761 |
greg |
1.1 |
} |