1 |
greg |
1.1 |
#ifndef lint |
2 |
greg |
2.22 |
static const char RCSid[] = "$Id: ra_tiff.c,v 2.21 2003/07/01 19:04:08 greg Exp $"; |
3 |
greg |
1.1 |
#endif |
4 |
|
|
/* |
5 |
gregl |
2.9 |
* Program to convert between RADIANCE and TIFF files. |
6 |
greg |
2.20 |
* Added LogLuv encodings 7/97 (GWL). |
7 |
|
|
* Added white-balance adjustment 10/01 (GW). |
8 |
greg |
1.1 |
*/ |
9 |
|
|
|
10 |
|
|
#include <stdio.h> |
11 |
greg |
2.3 |
#include <math.h> |
12 |
greg |
2.22 |
#include <ctype.h> |
13 |
greg |
1.1 |
#include "tiffio.h" |
14 |
|
|
#include "color.h" |
15 |
greg |
1.6 |
#include "resolu.h" |
16 |
|
|
|
17 |
greg |
2.8 |
#define GAMCOR 2.2 /* default gamma */ |
18 |
|
|
|
19 |
gregl |
2.9 |
/* conversion flags */ |
20 |
|
|
#define C_CXFM 0x1 /* needs color transformation */ |
21 |
|
|
#define C_GAMUT 0x2 /* needs gamut mapping */ |
22 |
|
|
#define C_GAMMA 0x4 /* needs gamma correction */ |
23 |
|
|
#define C_GRY 0x8 /* TIFF is greyscale */ |
24 |
|
|
#define C_XYZE 0x10 /* Radiance is XYZE */ |
25 |
|
|
#define C_RFLT 0x20 /* Radiance data is float */ |
26 |
|
|
#define C_TFLT 0x40 /* TIFF data is float */ |
27 |
gwlarson |
2.19 |
#define C_TWRD 0x80 /* TIFF data is 16-bit */ |
28 |
|
|
#define C_PRIM 0x100 /* has assigned primaries */ |
29 |
greg |
1.1 |
|
30 |
gregl |
2.9 |
struct { |
31 |
|
|
uint16 flags; /* conversion flags (defined above) */ |
32 |
greg |
2.22 |
char capdate[20]; /* capture date/time */ |
33 |
|
|
char owner[256]; /* content owner */ |
34 |
gregl |
2.9 |
uint16 comp; /* TIFF compression type */ |
35 |
gregl |
2.10 |
uint16 phot; /* TIFF photometric type */ |
36 |
gregl |
2.9 |
uint16 pconf; /* TIFF planar configuration */ |
37 |
|
|
float gamcor; /* gamma correction value */ |
38 |
|
|
short bradj; /* Radiance exposure adjustment (stops) */ |
39 |
|
|
uint16 orient; /* visual orientation (TIFF spec.) */ |
40 |
gregl |
2.11 |
double stonits; /* input conversion to nits */ |
41 |
gregl |
2.9 |
float pixrat; /* pixel aspect ratio */ |
42 |
|
|
FILE *rfp; /* Radiance stream pointer */ |
43 |
|
|
TIFF *tif; /* TIFF pointer */ |
44 |
|
|
uint32 xmax, ymax; /* image dimensions */ |
45 |
|
|
COLORMAT cmat; /* color transformation matrix */ |
46 |
|
|
RGBPRIMS prims; /* RGB primaries */ |
47 |
|
|
union { |
48 |
|
|
COLR *colrs; /* 4-byte ???E pointer */ |
49 |
|
|
COLOR *colors; /* float array pointer */ |
50 |
|
|
char *p; /* generic pointer */ |
51 |
|
|
} r; /* Radiance scanline */ |
52 |
|
|
union { |
53 |
|
|
uint8 *bp; /* byte pointer */ |
54 |
gwlarson |
2.18 |
uint16 *wp; /* word pointer */ |
55 |
gregl |
2.9 |
float *fp; /* float pointer */ |
56 |
|
|
char *p; /* generic pointer */ |
57 |
|
|
} t; /* TIFF scanline */ |
58 |
greg |
2.21 |
void (*tf)(); /* translation procedure */ |
59 |
gregl |
2.9 |
} cvts = { /* conversion structure */ |
60 |
greg |
2.22 |
0, "", "", COMPRESSION_NONE, PHOTOMETRIC_RGB, |
61 |
gregl |
2.10 |
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 |
greg |
2.21 |
void Luv2Color(), L2Color(), RGB2Colr(), Gry2Colr(); |
70 |
|
|
void Color2Luv(), Color2L(), Colr2RGB(), Colr2Gry(); |
71 |
|
|
void RRGGBB2Color(), GGry2Color(), Color2RRGGBB(), Color2GGry(); |
72 |
|
|
|
73 |
|
|
#define RfGfBf2Color Luv2Color |
74 |
|
|
#define Gryf2Color L2Color |
75 |
|
|
#define Color2Gryf Color2L |
76 |
|
|
#define Color2RfGfBf Color2Luv |
77 |
greg |
1.1 |
|
78 |
gregl |
2.9 |
short ortab[8] = { /* orientation conversion table */ |
79 |
|
|
YMAJOR|YDECR, |
80 |
|
|
YMAJOR|YDECR|XDECR, |
81 |
|
|
YMAJOR|XDECR, |
82 |
|
|
YMAJOR, |
83 |
|
|
YDECR, |
84 |
|
|
XDECR|YDECR, |
85 |
|
|
XDECR, |
86 |
|
|
0 |
87 |
|
|
}; |
88 |
greg |
1.1 |
|
89 |
gregl |
2.9 |
#define pixorder() ortab[cvts.orient-1] |
90 |
|
|
|
91 |
greg |
2.22 |
extern char TMSTR[]; /* "CAPDATE=" from header.c */ |
92 |
|
|
char OWNSTR[] = "OWNER="; |
93 |
|
|
|
94 |
greg |
1.1 |
char *progname; |
95 |
|
|
|
96 |
|
|
|
97 |
|
|
main(argc, argv) |
98 |
|
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int argc; |
99 |
|
|
char *argv[]; |
100 |
|
|
{ |
101 |
|
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int reverse = 0; |
102 |
|
|
int i; |
103 |
|
|
|
104 |
|
|
progname = argv[0]; |
105 |
|
|
|
106 |
|
|
for (i = 1; i < argc; i++) |
107 |
|
|
if (argv[i][0] == '-') |
108 |
|
|
switch (argv[i][1]) { |
109 |
gregl |
2.9 |
case 'g': /* gamma correction */ |
110 |
|
|
cvts.gamcor = atof(argv[++i]); |
111 |
greg |
1.1 |
break; |
112 |
gregl |
2.9 |
case 'x': /* XYZE Radiance output */ |
113 |
|
|
TGL(C_XYZE); |
114 |
greg |
1.4 |
break; |
115 |
gregl |
2.9 |
case 'z': /* LZW compressed output */ |
116 |
|
|
cvts.comp = COMPRESSION_LZW; |
117 |
greg |
1.5 |
break; |
118 |
gregl |
2.9 |
case 'L': /* LogLuv 32-bit output */ |
119 |
gregl |
2.10 |
cvts.comp = COMPRESSION_SGILOG; |
120 |
|
|
cvts.phot = PHOTOMETRIC_LOGLUV; |
121 |
gregl |
2.9 |
break; |
122 |
|
|
case 'l': /* LogLuv 24-bit output */ |
123 |
gregl |
2.10 |
cvts.comp = COMPRESSION_SGILOG24; |
124 |
|
|
cvts.phot = PHOTOMETRIC_LOGLUV; |
125 |
gregl |
2.9 |
break; |
126 |
greg |
2.21 |
case 'w': /* 16-bit/primary output? */ |
127 |
|
|
TGL(C_TWRD); |
128 |
|
|
break; |
129 |
|
|
case 'f': /* IEEE float output? */ |
130 |
|
|
TGL(C_TFLT); |
131 |
|
|
break; |
132 |
gregl |
2.9 |
case 'b': /* greyscale output? */ |
133 |
|
|
TGL(C_GRY); |
134 |
|
|
break; |
135 |
|
|
case 'e': /* exposure adjustment */ |
136 |
greg |
1.1 |
if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
137 |
|
|
goto userr; |
138 |
gregl |
2.9 |
cvts.bradj = atoi(argv[++i]); |
139 |
greg |
1.1 |
break; |
140 |
gregl |
2.9 |
case 'r': /* reverse conversion? */ |
141 |
greg |
1.1 |
reverse = !reverse; |
142 |
|
|
break; |
143 |
|
|
case '\0': |
144 |
|
|
goto doneopts; |
145 |
|
|
default: |
146 |
|
|
goto userr; |
147 |
|
|
} |
148 |
|
|
else |
149 |
|
|
break; |
150 |
|
|
doneopts: |
151 |
gregl |
2.9 |
if (reverse) { |
152 |
greg |
1.1 |
|
153 |
|
|
if (i != argc-2 && i != argc-1) |
154 |
|
|
goto userr; |
155 |
gregl |
2.9 |
|
156 |
|
|
tiff2ra(i, argv); |
157 |
|
|
|
158 |
|
|
} else { |
159 |
|
|
|
160 |
greg |
1.1 |
if (i != argc-2) |
161 |
|
|
goto userr; |
162 |
greg |
2.21 |
/* consistency checks */ |
163 |
|
|
if (CHK(C_GRY)) |
164 |
gregl |
2.10 |
if (cvts.phot == PHOTOMETRIC_RGB) |
165 |
|
|
cvts.phot = PHOTOMETRIC_MINISBLACK; |
166 |
|
|
else { |
167 |
|
|
cvts.phot = PHOTOMETRIC_LOGL; |
168 |
|
|
cvts.comp = COMPRESSION_SGILOG; |
169 |
|
|
} |
170 |
greg |
2.21 |
if (CHK(C_TWRD|C_TFLT) == (C_TWRD|C_TFLT)) |
171 |
|
|
goto userr; |
172 |
gregl |
2.9 |
|
173 |
|
|
ra2tiff(i, argv); |
174 |
|
|
} |
175 |
|
|
|
176 |
greg |
1.1 |
exit(0); |
177 |
|
|
userr: |
178 |
greg |
1.4 |
fprintf(stderr, |
179 |
greg |
2.21 |
"Usage: %s [-z|-L|-l|-f|-w][-b][-e +/-stops][-g gamma] {in.pic|-} out.tif\n", |
180 |
greg |
1.1 |
progname); |
181 |
gregl |
2.9 |
fprintf(stderr, |
182 |
|
|
" Or: %s -r [-x][-e +/-stops][-g gamma] in.tif [out.pic|-]\n", |
183 |
|
|
progname); |
184 |
greg |
1.1 |
exit(1); |
185 |
|
|
} |
186 |
|
|
|
187 |
|
|
|
188 |
|
|
quiterr(err) /* print message and exit */ |
189 |
|
|
char *err; |
190 |
|
|
{ |
191 |
|
|
if (err != NULL) { |
192 |
|
|
fprintf(stderr, "%s: %s\n", progname, err); |
193 |
|
|
exit(1); |
194 |
|
|
} |
195 |
|
|
exit(0); |
196 |
|
|
} |
197 |
|
|
|
198 |
|
|
|
199 |
gregl |
2.9 |
allocbufs() /* allocate scanline buffers */ |
200 |
greg |
1.1 |
{ |
201 |
gregl |
2.9 |
int rsiz, tsiz; |
202 |
|
|
|
203 |
|
|
rsiz = CHK(C_RFLT) ? sizeof(COLOR) : sizeof(COLR); |
204 |
gwlarson |
2.19 |
tsiz = (CHK(C_TFLT) ? sizeof(float) : |
205 |
|
|
CHK(C_TWRD) ? sizeof(uint16) : sizeof(uint8)) * |
206 |
gregl |
2.9 |
(CHK(C_GRY) ? 1 : 3); |
207 |
|
|
cvts.r.p = (char *)malloc(rsiz*cvts.xmax); |
208 |
|
|
cvts.t.p = (char *)malloc(tsiz*cvts.xmax); |
209 |
|
|
if (cvts.r.p == NULL | cvts.t.p == NULL) |
210 |
|
|
quiterr("no memory to allocate scanline buffers"); |
211 |
|
|
} |
212 |
|
|
|
213 |
|
|
|
214 |
|
|
initfromtif() /* initialize conversion from TIFF input */ |
215 |
|
|
{ |
216 |
|
|
uint16 hi; |
217 |
greg |
2.22 |
char *cp; |
218 |
gregl |
2.9 |
float *fa, f1, f2; |
219 |
|
|
|
220 |
greg |
2.21 |
CLR(C_GRY|C_GAMMA|C_PRIM|C_RFLT|C_TFLT|C_TWRD|C_CXFM); |
221 |
gregl |
2.9 |
|
222 |
|
|
TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_PLANARCONFIG, &cvts.pconf); |
223 |
|
|
|
224 |
|
|
if (TIFFGetField(cvts.tif, TIFFTAG_PRIMARYCHROMATICITIES, &fa)) { |
225 |
|
|
cvts.prims[RED][CIEX] = fa[0]; |
226 |
|
|
cvts.prims[RED][CIEY] = fa[1]; |
227 |
|
|
cvts.prims[GRN][CIEX] = fa[2]; |
228 |
|
|
cvts.prims[GRN][CIEY] = fa[3]; |
229 |
|
|
cvts.prims[BLU][CIEX] = fa[4]; |
230 |
|
|
cvts.prims[BLU][CIEY] = fa[5]; |
231 |
|
|
cvts.prims[WHT][CIEX] = 1./3.; |
232 |
|
|
cvts.prims[WHT][CIEY] = 1./3.; |
233 |
|
|
if (TIFFGetField(cvts.tif, TIFFTAG_WHITEPOINT, &fa)) { |
234 |
|
|
cvts.prims[WHT][CIEX] = fa[0]; |
235 |
|
|
cvts.prims[WHT][CIEY] = fa[1]; |
236 |
|
|
} |
237 |
|
|
SET(C_PRIM); |
238 |
|
|
} |
239 |
|
|
|
240 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_COMPRESSION, &cvts.comp)) |
241 |
|
|
cvts.comp = COMPRESSION_NONE; |
242 |
|
|
|
243 |
|
|
if (TIFFGetField(cvts.tif, TIFFTAG_XRESOLUTION, &f1) && |
244 |
|
|
TIFFGetField(cvts.tif, TIFFTAG_YRESOLUTION, &f2)) |
245 |
|
|
cvts.pixrat = f1/f2; |
246 |
|
|
|
247 |
gregl |
2.10 |
TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_ORIENTATION, &cvts.orient); |
248 |
gregl |
2.9 |
|
249 |
gregl |
2.10 |
if (!TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_PHOTOMETRIC, &cvts.phot)) |
250 |
|
|
quiterr("TIFF has unspecified photometric type"); |
251 |
|
|
|
252 |
|
|
switch (cvts.phot) { |
253 |
|
|
case PHOTOMETRIC_LOGLUV: |
254 |
gregl |
2.9 |
SET(C_RFLT|C_TFLT); |
255 |
|
|
if (!CHK(C_XYZE)) { |
256 |
|
|
cpcolormat(cvts.cmat, xyz2rgbmat); |
257 |
|
|
SET(C_CXFM|C_GAMUT); |
258 |
gregl |
2.10 |
} else if (cvts.comp == COMPRESSION_SGILOG) |
259 |
gregl |
2.9 |
SET(C_GAMUT); |
260 |
|
|
if (cvts.pconf != PLANARCONFIG_CONTIG) |
261 |
|
|
quiterr("cannot handle separate Luv planes"); |
262 |
gregl |
2.10 |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
263 |
gregl |
2.12 |
SGILOGDATAFMT_FLOAT); |
264 |
gregl |
2.9 |
cvts.tf = Luv2Color; |
265 |
|
|
break; |
266 |
gregl |
2.10 |
case PHOTOMETRIC_LOGL: |
267 |
|
|
SET(C_GRY|C_RFLT|C_TFLT|C_GAMUT); |
268 |
|
|
cvts.pconf = PLANARCONFIG_CONTIG; |
269 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
270 |
gregl |
2.12 |
SGILOGDATAFMT_FLOAT); |
271 |
gregl |
2.10 |
cvts.tf = L2Color; |
272 |
|
|
break; |
273 |
gregl |
2.11 |
case PHOTOMETRIC_YCBCR: |
274 |
|
|
if (cvts.comp == COMPRESSION_JPEG && |
275 |
|
|
cvts.pconf == PLANARCONFIG_CONTIG) { |
276 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_JPEGCOLORMODE, |
277 |
|
|
JPEGCOLORMODE_RGB); |
278 |
|
|
cvts.phot = PHOTOMETRIC_RGB; |
279 |
|
|
} else |
280 |
|
|
quiterr("unsupported photometric type"); |
281 |
|
|
/* fall through */ |
282 |
gregl |
2.10 |
case PHOTOMETRIC_RGB: |
283 |
gwlarson |
2.18 |
SET(C_GAMMA); |
284 |
gregl |
2.9 |
setcolrgam(cvts.gamcor); |
285 |
|
|
if (CHK(C_XYZE)) { |
286 |
greg |
2.20 |
comprgb2xyzWBmat(cvts.cmat, |
287 |
gregl |
2.9 |
CHK(C_PRIM) ? cvts.prims : stdprims); |
288 |
|
|
SET(C_CXFM); |
289 |
|
|
} |
290 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
291 |
gregl |
2.10 |
hi != 3) |
292 |
|
|
quiterr("unsupported samples per pixel for RGB"); |
293 |
greg |
2.21 |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi)) |
294 |
|
|
hi = -1; |
295 |
|
|
switch (hi) { |
296 |
|
|
case 8: |
297 |
gwlarson |
2.18 |
cvts.tf = RGB2Colr; |
298 |
greg |
2.21 |
break; |
299 |
|
|
case 16: |
300 |
gwlarson |
2.18 |
cvts.tf = RRGGBB2Color; |
301 |
gwlarson |
2.19 |
SET(C_RFLT|C_TWRD); |
302 |
greg |
2.21 |
break; |
303 |
|
|
case 32: |
304 |
|
|
cvts.tf = RfGfBf2Color; |
305 |
|
|
SET(C_RFLT|C_TFLT); |
306 |
|
|
break; |
307 |
|
|
default: |
308 |
|
|
quiterr("unsupported bits per sample for RGB"); |
309 |
gwlarson |
2.18 |
} |
310 |
gregl |
2.9 |
break; |
311 |
gregl |
2.10 |
case PHOTOMETRIC_MINISBLACK: |
312 |
gwlarson |
2.18 |
SET(C_GRY|C_GAMMA); |
313 |
gregl |
2.15 |
setcolrgam(cvts.gamcor); |
314 |
gregl |
2.10 |
cvts.pconf = PLANARCONFIG_CONTIG; |
315 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
316 |
|
|
hi != 1) |
317 |
|
|
quiterr("unsupported samples per pixel for greyscale"); |
318 |
greg |
2.21 |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi)) |
319 |
|
|
hi = -1; |
320 |
|
|
switch (hi) { |
321 |
|
|
case 8: |
322 |
gwlarson |
2.18 |
cvts.tf = Gry2Colr; |
323 |
greg |
2.21 |
break; |
324 |
|
|
case 16: |
325 |
gwlarson |
2.18 |
cvts.tf = GGry2Color; |
326 |
gwlarson |
2.19 |
SET(C_RFLT|C_TWRD); |
327 |
greg |
2.21 |
break; |
328 |
|
|
case 32: |
329 |
|
|
cvts.tf = Gryf2Color; |
330 |
|
|
SET(C_RFLT|C_TFLT); |
331 |
|
|
break; |
332 |
|
|
default: |
333 |
|
|
quiterr("unsupported bits per sample for Gray"); |
334 |
gwlarson |
2.18 |
} |
335 |
gregl |
2.10 |
break; |
336 |
|
|
default: |
337 |
|
|
quiterr("unsupported photometric type"); |
338 |
|
|
break; |
339 |
gregl |
2.9 |
} |
340 |
|
|
|
341 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_IMAGEWIDTH, &cvts.xmax) || |
342 |
|
|
!TIFFGetField(cvts.tif, TIFFTAG_IMAGELENGTH, &cvts.ymax)) |
343 |
greg |
1.1 |
quiterr("unknown input image resolution"); |
344 |
gregl |
2.9 |
|
345 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_STONITS, &cvts.stonits)) |
346 |
|
|
cvts.stonits = 1.; |
347 |
greg |
2.22 |
|
348 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_DATETIME, &cp)) |
349 |
|
|
cvts.capdate[0] = '\0'; |
350 |
|
|
else { |
351 |
|
|
strncpy(cvts.capdate, cp, 19); |
352 |
|
|
cvts.capdate[19] = '\0'; |
353 |
|
|
} |
354 |
|
|
if (!TIFFGetField(cvts.tif, TIFFTAG_ARTIST, &cp)) |
355 |
|
|
cvts.owner[0] = '\0'; |
356 |
|
|
else { |
357 |
|
|
strncpy(cvts.owner, cp, sizeof(cvts.owner)); |
358 |
|
|
cvts.owner[sizeof(cvts.owner)-1] = '\0'; |
359 |
|
|
} |
360 |
gregl |
2.9 |
/* add to Radiance header */ |
361 |
|
|
if (cvts.pixrat < .99 || cvts.pixrat > 1.01) |
362 |
|
|
fputaspect(cvts.pixrat, cvts.rfp); |
363 |
|
|
if (CHK(C_XYZE)) { |
364 |
|
|
fputexpos(pow(2.,(double)cvts.bradj)/cvts.stonits, cvts.rfp); |
365 |
|
|
fputformat(CIEFMT, cvts.rfp); |
366 |
|
|
} else { |
367 |
|
|
if (CHK(C_PRIM)) |
368 |
|
|
fputprims(cvts.prims, cvts.rfp); |
369 |
|
|
fputexpos(WHTEFFICACY*pow(2.,(double)cvts.bradj)/cvts.stonits, |
370 |
|
|
cvts.rfp); |
371 |
|
|
fputformat(COLRFMT, cvts.rfp); |
372 |
|
|
} |
373 |
greg |
2.22 |
if (cvts.capdate[0]) |
374 |
|
|
fprintf(cvts.rfp, "%s %s\n", TMSTR, cvts.capdate); |
375 |
|
|
if (cvts.owner[0]) |
376 |
|
|
fprintf(cvts.rfp, "%s %s\n", OWNSTR, cvts.owner); |
377 |
gregl |
2.9 |
|
378 |
|
|
allocbufs(); /* allocate scanline buffers */ |
379 |
|
|
} |
380 |
|
|
|
381 |
|
|
|
382 |
|
|
tiff2ra(ac, av) /* convert TIFF image to Radiance picture */ |
383 |
|
|
int ac; |
384 |
|
|
char *av[]; |
385 |
|
|
{ |
386 |
|
|
int32 y; |
387 |
|
|
/* open TIFF input */ |
388 |
|
|
if ((cvts.tif = TIFFOpen(av[ac], "r")) == NULL) |
389 |
|
|
quiterr("cannot open TIFF input"); |
390 |
|
|
/* open Radiance output */ |
391 |
|
|
if (av[ac+1] == NULL || !strcmp(av[ac+1], "-")) |
392 |
|
|
cvts.rfp = stdout; |
393 |
|
|
else if ((cvts.rfp = fopen(av[ac+1], "w")) == NULL) |
394 |
|
|
quiterr("cannot open Radiance output picture"); |
395 |
|
|
/* start output header */ |
396 |
|
|
newheader("RADIANCE", cvts.rfp); |
397 |
|
|
printargs(ac, av, cvts.rfp); |
398 |
|
|
|
399 |
|
|
initfromtif(); /* initialize conversion */ |
400 |
|
|
|
401 |
|
|
fputc('\n', cvts.rfp); /* finish Radiance header */ |
402 |
|
|
fputresolu(pixorder(), (int)cvts.xmax, (int)cvts.ymax, cvts.rfp); |
403 |
|
|
|
404 |
|
|
for (y = 0; y < cvts.ymax; y++) /* convert image */ |
405 |
|
|
(*cvts.tf)(y); |
406 |
|
|
/* clean up */ |
407 |
|
|
fclose(cvts.rfp); |
408 |
|
|
TIFFClose(cvts.tif); |
409 |
|
|
} |
410 |
|
|
|
411 |
|
|
|
412 |
|
|
int |
413 |
|
|
headline(s) /* process Radiance input header line */ |
414 |
|
|
char *s; |
415 |
|
|
{ |
416 |
greg |
2.22 |
static int tmstrlen = 0; |
417 |
|
|
static int ownstrlen = 0; |
418 |
gregl |
2.9 |
char fmt[32]; |
419 |
|
|
|
420 |
greg |
2.22 |
if (!tmstrlen) |
421 |
|
|
tmstrlen = strlen(TMSTR); |
422 |
|
|
if (!ownstrlen) |
423 |
|
|
ownstrlen = strlen(OWNSTR); |
424 |
gregl |
2.9 |
if (formatval(fmt, s)) { |
425 |
|
|
if (!strcmp(fmt, COLRFMT)) |
426 |
|
|
CLR(C_XYZE); |
427 |
|
|
else if (!strcmp(fmt, CIEFMT)) |
428 |
|
|
SET(C_XYZE); |
429 |
|
|
else |
430 |
|
|
quiterr("unrecognized input picture format"); |
431 |
gwlarson |
2.17 |
return(1); |
432 |
gregl |
2.9 |
} |
433 |
|
|
if (isexpos(s)) { |
434 |
|
|
cvts.stonits /= exposval(s); |
435 |
gwlarson |
2.17 |
return(1); |
436 |
gregl |
2.9 |
} |
437 |
|
|
if (isaspect(s)) { |
438 |
|
|
cvts.pixrat *= aspectval(s); |
439 |
gwlarson |
2.17 |
return(1); |
440 |
gregl |
2.9 |
} |
441 |
|
|
if (isprims(s)) { |
442 |
|
|
primsval(cvts.prims, s); |
443 |
|
|
SET(C_PRIM); |
444 |
gwlarson |
2.17 |
return(1); |
445 |
gregl |
2.9 |
} |
446 |
greg |
2.22 |
if (isdate(s)) { |
447 |
|
|
if (s[tmstrlen] == ' ') |
448 |
|
|
strncpy(cvts.capdate, s+tmstrlen+1, 19); |
449 |
|
|
else |
450 |
|
|
strncpy(cvts.capdate, s+tmstrlen, 19); |
451 |
|
|
cvts.capdate[19] = '\0'; |
452 |
|
|
return(1); |
453 |
|
|
} |
454 |
|
|
if (!strncmp(s, OWNSTR, ownstrlen)) { |
455 |
|
|
register char *cp = s + ownstrlen; |
456 |
|
|
|
457 |
|
|
while (isspace(*cp)) |
458 |
|
|
++cp; |
459 |
|
|
strncpy(cvts.owner, cp, sizeof(cvts.owner)); |
460 |
|
|
cvts.owner[sizeof(cvts.owner)-1] = '\0'; |
461 |
|
|
for (cp = cvts.owner; *cp; cp++) |
462 |
|
|
; |
463 |
|
|
while (cp > cvts.owner && isspace(cp[-1])) |
464 |
|
|
*--cp = '\0'; |
465 |
|
|
return(1); |
466 |
|
|
} |
467 |
gwlarson |
2.17 |
return(0); |
468 |
gregl |
2.9 |
} |
469 |
|
|
|
470 |
|
|
|
471 |
|
|
initfromrad() /* initialize input from a Radiance picture */ |
472 |
|
|
{ |
473 |
|
|
int i1, i2, po; |
474 |
|
|
/* read Radiance header */ |
475 |
greg |
2.21 |
CLR(C_RFLT|C_XYZE|C_PRIM|C_GAMMA|C_CXFM); |
476 |
greg |
2.22 |
cvts.capdate[0] = '\0'; |
477 |
|
|
cvts.owner[0] = '\0'; |
478 |
gregl |
2.9 |
cvts.stonits = 1.; |
479 |
|
|
cvts.pixrat = 1.; |
480 |
|
|
cvts.pconf = PLANARCONFIG_CONTIG; |
481 |
|
|
getheader(cvts.rfp, headline, NULL); |
482 |
|
|
if ((po = fgetresolu(&i1, &i2, cvts.rfp)) < 0) |
483 |
|
|
quiterr("bad Radiance picture"); |
484 |
|
|
cvts.xmax = i1; cvts.ymax = i2; |
485 |
|
|
for (i1 = 0; i1 < 8; i1++) /* interpret orientation */ |
486 |
|
|
if (ortab[i1] == po) { |
487 |
|
|
cvts.orient = i1 + 1; |
488 |
|
|
break; |
489 |
greg |
1.1 |
} |
490 |
gregl |
2.9 |
if (i1 >= 8) |
491 |
|
|
quiterr("internal error 1 in initfromrad"); |
492 |
|
|
if (!(po & YMAJOR)) |
493 |
|
|
cvts.pixrat = 1./cvts.pixrat; |
494 |
|
|
if (!CHK(C_XYZE)) |
495 |
|
|
cvts.stonits *= WHTEFFICACY; |
496 |
|
|
/* set up conversion */ |
497 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_COMPRESSION, cvts.comp); |
498 |
gregl |
2.10 |
TIFFSetField(cvts.tif, TIFFTAG_PHOTOMETRIC, cvts.phot); |
499 |
gregl |
2.9 |
|
500 |
gregl |
2.10 |
switch (cvts.phot) { |
501 |
|
|
case PHOTOMETRIC_LOGLUV: |
502 |
gregl |
2.9 |
SET(C_RFLT|C_TFLT); |
503 |
greg |
2.21 |
CLR(C_GRY|C_TWRD); |
504 |
gregl |
2.9 |
if (!CHK(C_XYZE)) { |
505 |
greg |
2.20 |
comprgb2xyzWBmat(cvts.cmat, |
506 |
|
|
CHK(C_PRIM) ? cvts.prims : stdprims); |
507 |
gregl |
2.9 |
SET(C_CXFM); |
508 |
|
|
} |
509 |
gregl |
2.10 |
if (cvts.comp != COMPRESSION_SGILOG && |
510 |
|
|
cvts.comp != COMPRESSION_SGILOG24) |
511 |
|
|
quiterr("internal error 2 in initfromrad"); |
512 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
513 |
gregl |
2.12 |
SGILOGDATAFMT_FLOAT); |
514 |
gregl |
2.9 |
cvts.tf = Color2Luv; |
515 |
|
|
break; |
516 |
gregl |
2.10 |
case PHOTOMETRIC_LOGL: |
517 |
|
|
SET(C_GRY|C_RFLT|C_TFLT); |
518 |
greg |
2.21 |
CLR(C_TWRD); |
519 |
gregl |
2.10 |
if (cvts.comp != COMPRESSION_SGILOG) |
520 |
|
|
quiterr("internal error 3 in initfromrad"); |
521 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
522 |
gregl |
2.12 |
SGILOGDATAFMT_FLOAT); |
523 |
gregl |
2.10 |
cvts.tf = Color2L; |
524 |
|
|
break; |
525 |
|
|
case PHOTOMETRIC_RGB: |
526 |
gregl |
2.9 |
SET(C_GAMMA|C_GAMUT); |
527 |
gregl |
2.10 |
CLR(C_GRY); |
528 |
gregl |
2.9 |
setcolrgam(cvts.gamcor); |
529 |
|
|
if (CHK(C_XYZE)) { |
530 |
greg |
2.20 |
compxyz2rgbWBmat(cvts.cmat, |
531 |
gregl |
2.9 |
CHK(C_PRIM) ? cvts.prims : stdprims); |
532 |
|
|
SET(C_CXFM); |
533 |
|
|
} |
534 |
|
|
if (CHK(C_PRIM)) { |
535 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_PRIMARYCHROMATICITIES, |
536 |
|
|
(float *)cvts.prims); |
537 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_WHITEPOINT, |
538 |
|
|
(float *)cvts.prims[WHT]); |
539 |
|
|
} |
540 |
greg |
2.21 |
if (CHK(C_TWRD)) { |
541 |
|
|
cvts.tf = Color2RRGGBB; |
542 |
|
|
SET(C_RFLT); |
543 |
|
|
} else if (CHK(C_TFLT)) { |
544 |
|
|
cvts.tf = Color2RfGfBf; |
545 |
|
|
SET(C_RFLT); |
546 |
|
|
} else |
547 |
|
|
cvts.tf = Colr2RGB; |
548 |
gregl |
2.9 |
break; |
549 |
gregl |
2.10 |
case PHOTOMETRIC_MINISBLACK: |
550 |
|
|
SET(C_GRY|C_GAMMA|C_GAMUT); |
551 |
|
|
setcolrgam(cvts.gamcor); |
552 |
greg |
2.21 |
if (CHK(C_TWRD)) { |
553 |
|
|
cvts.tf = Color2GGry; |
554 |
|
|
SET(C_RFLT); |
555 |
|
|
} else if (CHK(C_TFLT)) { |
556 |
|
|
cvts.tf = Color2Gryf; |
557 |
|
|
SET(C_RFLT); |
558 |
|
|
} else |
559 |
|
|
cvts.tf = Colr2Gry; |
560 |
gregl |
2.10 |
break; |
561 |
|
|
default: |
562 |
|
|
quiterr("internal error 4 in initfromrad"); |
563 |
|
|
break; |
564 |
greg |
1.1 |
} |
565 |
gregl |
2.9 |
/* set other TIFF fields */ |
566 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_IMAGEWIDTH, cvts.xmax); |
567 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_IMAGELENGTH, cvts.ymax); |
568 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, CHK(C_GRY) ? 1 : 3); |
569 |
greg |
2.21 |
TIFFSetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, |
570 |
|
|
CHK(C_TFLT) ? 32 : CHK(C_TWRD) ? 16 : 8); |
571 |
gregl |
2.9 |
TIFFSetField(cvts.tif, TIFFTAG_XRESOLUTION, 72.); |
572 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_YRESOLUTION, 72./cvts.pixrat); |
573 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_ORIENTATION, cvts.orient); |
574 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_RESOLUTIONUNIT, 2); |
575 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_PLANARCONFIG, cvts.pconf); |
576 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_STONITS, |
577 |
|
|
cvts.stonits/pow(2.,(double)cvts.bradj)); |
578 |
greg |
2.22 |
if (cvts.capdate[0]) |
579 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_DATETIME, cvts.capdate); |
580 |
|
|
if (cvts.owner[0]) |
581 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_ARTIST, cvts.owner); |
582 |
gregl |
2.10 |
if (cvts.comp == COMPRESSION_NONE) |
583 |
|
|
i1 = TIFFScanlineSize(cvts.tif); |
584 |
|
|
else |
585 |
|
|
i1 = 3*cvts.xmax; /* conservative guess */ |
586 |
gregl |
2.9 |
i2 = 8192/i1; /* compute good strip size */ |
587 |
|
|
if (i2 < 1) i2 = 1; |
588 |
|
|
TIFFSetField(cvts.tif, TIFFTAG_ROWSPERSTRIP, (uint32)i2); |
589 |
|
|
|
590 |
|
|
allocbufs(); /* allocate scanline buffers */ |
591 |
|
|
} |
592 |
|
|
|
593 |
|
|
|
594 |
|
|
ra2tiff(ac, av) /* convert Radiance picture to TIFF image */ |
595 |
|
|
int ac; |
596 |
|
|
char *av[]; |
597 |
|
|
{ |
598 |
|
|
uint32 y; |
599 |
|
|
/* open Radiance file */ |
600 |
|
|
if (!strcmp(av[ac], "-")) |
601 |
|
|
cvts.rfp = stdin; |
602 |
|
|
else if ((cvts.rfp = fopen(av[ac], "r")) == NULL) |
603 |
|
|
quiterr("cannot open Radiance input picture"); |
604 |
|
|
/* open TIFF file */ |
605 |
|
|
if ((cvts.tif = TIFFOpen(av[ac+1], "w")) == NULL) |
606 |
|
|
quiterr("cannot open TIFF output"); |
607 |
|
|
|
608 |
|
|
initfromrad(); /* initialize conversion */ |
609 |
|
|
|
610 |
|
|
for (y = 0; y < cvts.ymax; y++) /* convert image */ |
611 |
|
|
(*cvts.tf)(y); |
612 |
greg |
1.1 |
/* clean up */ |
613 |
gregl |
2.9 |
TIFFClose(cvts.tif); |
614 |
|
|
fclose(cvts.rfp); |
615 |
|
|
} |
616 |
|
|
|
617 |
|
|
|
618 |
greg |
2.21 |
void |
619 |
gregl |
2.9 |
Luv2Color(y) /* read/convert/write Luv->COLOR scanline */ |
620 |
|
|
uint32 y; |
621 |
|
|
{ |
622 |
|
|
register int x; |
623 |
|
|
|
624 |
gwlarson |
2.19 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT)) |
625 |
gregl |
2.9 |
quiterr("internal error 1 in Luv2Color"); |
626 |
|
|
|
627 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
628 |
|
|
quiterr("error reading TIFF input"); |
629 |
greg |
2.21 |
/* also works for float RGB */ |
630 |
gregl |
2.9 |
for (x = cvts.xmax; x--; ) { |
631 |
greg |
2.21 |
setcolor(cvts.r.colors[x], |
632 |
|
|
cvts.t.fp[3*x], |
633 |
|
|
cvts.t.fp[3*x + 1], |
634 |
|
|
cvts.t.fp[3*x + 2]); |
635 |
gregl |
2.9 |
if (CHK(C_CXFM)) |
636 |
|
|
colortrans(cvts.r.colors[x], cvts.cmat, |
637 |
|
|
cvts.r.colors[x]); |
638 |
|
|
if (CHK(C_GAMUT)) |
639 |
|
|
clipgamut(cvts.r.colors[x], cvts.t.fp[3*x + 1], |
640 |
|
|
CGAMUT_LOWER, cblack, cwhite); |
641 |
|
|
} |
642 |
|
|
if (cvts.bradj) { |
643 |
|
|
double m = pow(2.,(double)cvts.bradj); |
644 |
|
|
for (x = cvts.xmax; x--; ) |
645 |
|
|
scalecolor(cvts.r.colors[x], m); |
646 |
|
|
} |
647 |
|
|
|
648 |
|
|
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
649 |
|
|
quiterr("error writing Radiance picture"); |
650 |
|
|
} |
651 |
|
|
|
652 |
|
|
|
653 |
greg |
2.21 |
void |
654 |
gwlarson |
2.18 |
RRGGBB2Color(y) /* read/convert/write RGB16->COLOR scanline */ |
655 |
|
|
uint32 y; |
656 |
|
|
{ |
657 |
|
|
int dogamma = cvts.gamcor < 0.99 | cvts.gamcor > 1.01; |
658 |
|
|
register double d; |
659 |
|
|
register int x; |
660 |
|
|
|
661 |
gwlarson |
2.19 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_TWRD|C_RFLT)) |
662 |
gwlarson |
2.18 |
quiterr("internal error 1 in RRGGBB2Color"); |
663 |
|
|
|
664 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
665 |
|
|
quiterr("error reading TIFF input"); |
666 |
|
|
|
667 |
|
|
for (x = cvts.xmax; x--; ) { |
668 |
|
|
d = (cvts.t.wp[3*x] + 0.5)*(1./(1L<<16)); |
669 |
|
|
if (dogamma) d = pow(d, cvts.gamcor); |
670 |
|
|
colval(cvts.r.colors[x],RED) = d; |
671 |
|
|
d = (cvts.t.wp[3*x + 1] + 0.5)*(1./(1L<<16)); |
672 |
|
|
if (dogamma) d = pow(d, cvts.gamcor); |
673 |
|
|
colval(cvts.r.colors[x],GRN) = d; |
674 |
|
|
d = (cvts.t.wp[3*x + 2] + 0.5)*(1./(1L<<16)); |
675 |
|
|
if (dogamma) d = pow(d, cvts.gamcor); |
676 |
|
|
colval(cvts.r.colors[x],BLU) = d; |
677 |
|
|
if (CHK(C_CXFM)) |
678 |
|
|
colortrans(cvts.r.colors[x], cvts.cmat, |
679 |
|
|
cvts.r.colors[x]); |
680 |
|
|
if (CHK(C_GAMUT)) |
681 |
|
|
clipgamut(cvts.r.colors[x], cvts.t.fp[3*x + 1], |
682 |
|
|
CGAMUT_LOWER, cblack, cwhite); |
683 |
|
|
} |
684 |
|
|
if (cvts.bradj) { |
685 |
|
|
d = pow(2.,(double)cvts.bradj); |
686 |
|
|
for (x = cvts.xmax; x--; ) |
687 |
|
|
scalecolor(cvts.r.colors[x], d); |
688 |
|
|
} |
689 |
|
|
|
690 |
|
|
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
691 |
|
|
quiterr("error writing Radiance picture"); |
692 |
|
|
} |
693 |
|
|
|
694 |
|
|
|
695 |
greg |
2.21 |
void |
696 |
|
|
L2Color(y) /* read/convert/write Lfloat->COLOR scanline */ |
697 |
gregl |
2.9 |
uint32 y; |
698 |
|
|
{ |
699 |
greg |
2.21 |
float m = pow(2., (double)cvts.bradj); |
700 |
gregl |
2.9 |
register int x; |
701 |
|
|
|
702 |
gwlarson |
2.19 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
703 |
gregl |
2.9 |
quiterr("internal error 1 in L2Color"); |
704 |
|
|
|
705 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
706 |
|
|
quiterr("error reading TIFF input"); |
707 |
greg |
2.21 |
/* also works for float greyscale */ |
708 |
|
|
for (x = cvts.xmax; x--; ) { |
709 |
|
|
register float f = cvts.t.fp[x]; |
710 |
|
|
if (cvts.bradj) f *= m; |
711 |
|
|
setcolor(cvts.r.colors[x], f, f, f); |
712 |
|
|
} |
713 |
gregl |
2.9 |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
714 |
|
|
quiterr("error writing Radiance picture"); |
715 |
|
|
} |
716 |
|
|
|
717 |
|
|
|
718 |
greg |
2.21 |
void |
719 |
gregl |
2.9 |
RGB2Colr(y) /* read/convert/write RGB->COLR scanline */ |
720 |
|
|
uint32 y; |
721 |
|
|
{ |
722 |
|
|
COLOR ctmp; |
723 |
|
|
register int x; |
724 |
|
|
|
725 |
gwlarson |
2.19 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY)) |
726 |
gregl |
2.9 |
quiterr("internal error 1 in RGB2Colr"); |
727 |
|
|
|
728 |
|
|
if (cvts.pconf == PLANARCONFIG_CONTIG) { |
729 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
730 |
|
|
goto readerr; |
731 |
|
|
for (x = cvts.xmax; x--; ) { |
732 |
|
|
cvts.r.colrs[x][RED] = cvts.t.bp[3*x]; |
733 |
|
|
cvts.r.colrs[x][GRN] = cvts.t.bp[3*x + 1]; |
734 |
|
|
cvts.r.colrs[x][BLU] = cvts.t.bp[3*x + 2]; |
735 |
|
|
} |
736 |
|
|
} else { |
737 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
738 |
|
|
goto readerr; |
739 |
|
|
if (TIFFReadScanline(cvts.tif, |
740 |
gregl |
2.14 |
(tdata_t)(cvts.t.bp + cvts.xmax), y, 1) < 0) |
741 |
gregl |
2.9 |
goto readerr; |
742 |
|
|
if (TIFFReadScanline(cvts.tif, |
743 |
gregl |
2.14 |
(tdata_t)(cvts.t.bp + 2*cvts.xmax), y, 2) < 0) |
744 |
gregl |
2.9 |
goto readerr; |
745 |
|
|
for (x = cvts.xmax; x--; ) { |
746 |
|
|
cvts.r.colrs[x][RED] = cvts.t.bp[x]; |
747 |
|
|
cvts.r.colrs[x][GRN] = cvts.t.bp[cvts.xmax + x]; |
748 |
|
|
cvts.r.colrs[x][BLU] = cvts.t.bp[2*cvts.xmax + x]; |
749 |
|
|
} |
750 |
|
|
} |
751 |
|
|
|
752 |
|
|
gambs_colrs(cvts.r.colrs, cvts.xmax); |
753 |
|
|
if (CHK(C_CXFM)) |
754 |
|
|
for (x = cvts.xmax; x--; ) { |
755 |
|
|
colr_color(ctmp, cvts.r.colrs[x]); |
756 |
|
|
colortrans(ctmp, cvts.cmat, ctmp); |
757 |
|
|
if (CHK(C_GAMUT)) /* !CHK(C_XYZE) */ |
758 |
|
|
clipgamut(ctmp, bright(ctmp), CGAMUT_LOWER, |
759 |
|
|
cblack, cwhite); |
760 |
|
|
setcolr(cvts.r.colrs[x], colval(ctmp,RED), |
761 |
|
|
colval(ctmp,GRN), colval(ctmp,BLU)); |
762 |
|
|
} |
763 |
|
|
if (cvts.bradj) |
764 |
|
|
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
765 |
|
|
|
766 |
|
|
if (fwritecolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
767 |
|
|
quiterr("error writing Radiance picture"); |
768 |
greg |
1.1 |
return; |
769 |
|
|
readerr: |
770 |
|
|
quiterr("error reading TIFF input"); |
771 |
|
|
} |
772 |
|
|
|
773 |
|
|
|
774 |
greg |
2.21 |
void |
775 |
gregl |
2.9 |
Gry2Colr(y) /* read/convert/write G8->COLR scanline */ |
776 |
|
|
uint32 y; |
777 |
greg |
1.1 |
{ |
778 |
|
|
register int x; |
779 |
gregl |
2.9 |
|
780 |
gwlarson |
2.19 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != C_GRY) |
781 |
gregl |
2.9 |
quiterr("internal error 1 in Gry2Colr"); |
782 |
|
|
|
783 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
784 |
|
|
quiterr("error reading TIFF input"); |
785 |
|
|
|
786 |
|
|
for (x = cvts.xmax; x--; ) |
787 |
|
|
cvts.r.colrs[x][RED] = |
788 |
|
|
cvts.r.colrs[x][GRN] = |
789 |
|
|
cvts.r.colrs[x][BLU] = cvts.t.bp[x]; |
790 |
|
|
|
791 |
|
|
gambs_colrs(cvts.r.colrs, cvts.xmax); |
792 |
|
|
if (cvts.bradj) |
793 |
|
|
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
794 |
|
|
|
795 |
|
|
if (fwritecolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
796 |
|
|
quiterr("error writing Radiance picture"); |
797 |
|
|
} |
798 |
|
|
|
799 |
|
|
|
800 |
greg |
2.21 |
void |
801 |
gwlarson |
2.18 |
GGry2Color(y) /* read/convert/write G16->COLOR scanline */ |
802 |
|
|
uint32 y; |
803 |
|
|
{ |
804 |
|
|
int dogamma = cvts.gamcor < 0.99 | cvts.gamcor > 1.01; |
805 |
|
|
double m; |
806 |
|
|
register double d; |
807 |
|
|
register int x; |
808 |
|
|
|
809 |
gwlarson |
2.19 |
if (CHK(C_TFLT|C_TWRD|C_GRY|C_RFLT) != (C_GRY|C_RFLT|C_TWRD)) |
810 |
gwlarson |
2.18 |
quiterr("internal error 1 in GGry2Color"); |
811 |
|
|
|
812 |
|
|
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
813 |
|
|
quiterr("error reading TIFF input"); |
814 |
|
|
|
815 |
|
|
if (cvts.bradj) |
816 |
|
|
m = pow(2., (double)cvts.bradj); |
817 |
|
|
for (x = cvts.xmax; x--; ) { |
818 |
|
|
d = (cvts.t.wp[x] + 0.5)*(1./(1L<<16)); |
819 |
|
|
if (dogamma) d = pow(d, cvts.gamcor); |
820 |
|
|
if (cvts.bradj) d *= m; |
821 |
|
|
colval(cvts.r.colors[x],RED) = |
822 |
|
|
colval(cvts.r.colors[x],GRN) = |
823 |
|
|
colval(cvts.r.colors[x],BLU) = d; |
824 |
|
|
} |
825 |
|
|
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
826 |
|
|
quiterr("error writing Radiance picture"); |
827 |
|
|
} |
828 |
|
|
|
829 |
|
|
|
830 |
greg |
2.21 |
void |
831 |
|
|
Color2GGry(y) /* read/convert/write COLOR->G16 scanline */ |
832 |
|
|
uint32 y; |
833 |
|
|
{ |
834 |
|
|
int dogamma = cvts.gamcor < 0.99 | cvts.gamcor > 1.01; |
835 |
|
|
float m = pow(2.,(double)cvts.bradj); |
836 |
|
|
register int x; |
837 |
|
|
|
838 |
|
|
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TWRD|C_GRY)) |
839 |
|
|
quiterr("internal error 1 in Color2GGry"); |
840 |
|
|
|
841 |
|
|
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
842 |
|
|
quiterr("error reading Radiance picture"); |
843 |
|
|
|
844 |
|
|
for (x = cvts.xmax; x--; ) { |
845 |
|
|
register float f = m*( CHK(C_XYZE) ? |
846 |
|
|
colval(cvts.r.colors[x],CIEY) |
847 |
|
|
: bright(cvts.r.colors[x]) ); |
848 |
|
|
if (f <= 0) |
849 |
|
|
cvts.t.wp[x] = 0; |
850 |
|
|
else if (f >= 1) |
851 |
|
|
cvts.t.wp[x] = 0xffff; |
852 |
|
|
else if (dogamma) |
853 |
|
|
cvts.t.wp[x] = (int)((float)(1L<<16) * |
854 |
|
|
pow(f, 1./cvts.gamcor)); |
855 |
|
|
else |
856 |
|
|
cvts.t.wp[x] = (int)((float)(1L<<16) * f); |
857 |
|
|
} |
858 |
|
|
|
859 |
|
|
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
860 |
|
|
quiterr("error writing TIFF output"); |
861 |
|
|
} |
862 |
|
|
|
863 |
|
|
|
864 |
|
|
void |
865 |
|
|
Color2L(y) /* read/convert/write COLOR->Lfloat scanline */ |
866 |
gregl |
2.9 |
uint32 y; |
867 |
|
|
{ |
868 |
greg |
2.21 |
float m = pow(2.,(double)cvts.bradj); |
869 |
gregl |
2.9 |
register int x; |
870 |
|
|
|
871 |
gwlarson |
2.19 |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
872 |
gregl |
2.9 |
quiterr("internal error 1 in Color2L"); |
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 |
|
|
cvts.t.fp[x] = m*( CHK(C_XYZE) ? colval(cvts.r.colors[x],CIEY) |
879 |
|
|
: bright(cvts.r.colors[x]) ); |
880 |
|
|
|
881 |
|
|
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
882 |
|
|
quiterr("error writing TIFF output"); |
883 |
|
|
} |
884 |
|
|
|
885 |
|
|
|
886 |
greg |
2.21 |
void |
887 |
gregl |
2.9 |
Color2Luv(y) /* read/convert/write COLOR->Luv scanline */ |
888 |
|
|
uint32 y; |
889 |
|
|
{ |
890 |
|
|
register int x; |
891 |
|
|
|
892 |
gwlarson |
2.19 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT)) |
893 |
gregl |
2.9 |
quiterr("internal error 1 in Color2Luv"); |
894 |
|
|
|
895 |
|
|
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
896 |
|
|
quiterr("error reading Radiance picture"); |
897 |
|
|
|
898 |
|
|
if (CHK(C_CXFM)) |
899 |
|
|
for (x = cvts.xmax; x--; ) |
900 |
|
|
colortrans(cvts.r.colors[x], cvts.cmat, |
901 |
|
|
cvts.r.colors[x]); |
902 |
|
|
if (cvts.bradj) { |
903 |
|
|
double m = pow(2.,(double)cvts.bradj); |
904 |
|
|
for (x = cvts.xmax; x--; ) |
905 |
|
|
scalecolor(cvts.r.colors[x], m); |
906 |
|
|
} |
907 |
greg |
2.21 |
/* also works for float RGB */ |
908 |
gregl |
2.9 |
for (x = cvts.xmax; x--; ) { |
909 |
gwlarson |
2.16 |
cvts.t.fp[3*x] = colval(cvts.r.colors[x],CIEX); |
910 |
|
|
cvts.t.fp[3*x+1] = colval(cvts.r.colors[x],CIEY); |
911 |
|
|
cvts.t.fp[3*x+2] = colval(cvts.r.colors[x],CIEZ); |
912 |
gregl |
2.9 |
} |
913 |
|
|
|
914 |
|
|
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
915 |
|
|
quiterr("error writing TIFF output"); |
916 |
|
|
} |
917 |
|
|
|
918 |
|
|
|
919 |
greg |
2.21 |
void |
920 |
|
|
Color2RRGGBB(y) /* read/convert/write COLOR->RGB16 scanline */ |
921 |
|
|
uint32 y; |
922 |
|
|
{ |
923 |
|
|
int dogamma = cvts.gamcor < 0.99 | cvts.gamcor > 1.01; |
924 |
|
|
float m = pow(2.,(double)cvts.bradj); |
925 |
|
|
register int x, i; |
926 |
|
|
|
927 |
|
|
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TWRD)) |
928 |
|
|
quiterr("internal error 1 in Color2RRGGBB"); |
929 |
|
|
|
930 |
|
|
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
931 |
|
|
quiterr("error reading Radiance picture"); |
932 |
|
|
|
933 |
|
|
for (x = cvts.xmax; x--; ) |
934 |
|
|
for (i = 3; i--; ) { |
935 |
|
|
register float f = m*colval(cvts.r.colors[x],i); |
936 |
|
|
if (f <= 0) |
937 |
|
|
cvts.t.wp[3*x + i] = 0; |
938 |
|
|
else if (f >= 1) |
939 |
|
|
cvts.t.wp[3*x + i] = 0xffff; |
940 |
|
|
else if (dogamma) |
941 |
|
|
cvts.t.wp[3*x + i] = (int)((float)(1L<<16) * |
942 |
|
|
pow(f, 1./cvts.gamcor)); |
943 |
|
|
else |
944 |
|
|
cvts.t.wp[3*x + i] = (int)((float)(1L<<16)*f); |
945 |
|
|
} |
946 |
|
|
|
947 |
|
|
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
948 |
|
|
quiterr("error writing TIFF output"); |
949 |
|
|
} |
950 |
|
|
|
951 |
|
|
|
952 |
|
|
void |
953 |
gregl |
2.9 |
Colr2Gry(y) /* read/convert/write COLR->RGB scanline */ |
954 |
|
|
uint32 y; |
955 |
|
|
{ |
956 |
|
|
register int x; |
957 |
|
|
|
958 |
gwlarson |
2.19 |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != C_GRY) |
959 |
gregl |
2.9 |
quiterr("internal error 1 in Colr2Gry"); |
960 |
|
|
|
961 |
|
|
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
962 |
|
|
quiterr("error reading Radiance picture"); |
963 |
|
|
|
964 |
|
|
if (cvts.bradj) |
965 |
|
|
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
966 |
|
|
for (x = cvts.xmax; x--; ) |
967 |
|
|
colval(cvts.r.colrs[x],CIEY) = normbright(cvts.r.colrs[x]); |
968 |
|
|
colrs_gambs(cvts.r.colrs, cvts.xmax); |
969 |
|
|
|
970 |
|
|
for (x = cvts.xmax; x--; ) |
971 |
|
|
cvts.t.bp[x] = colval(cvts.r.colrs[x],CIEY); |
972 |
|
|
|
973 |
|
|
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
974 |
|
|
quiterr("error writing TIFF output"); |
975 |
|
|
} |
976 |
|
|
|
977 |
|
|
|
978 |
greg |
2.21 |
void |
979 |
gregl |
2.9 |
Colr2RGB(y) /* read/convert/write COLR->RGB scanline */ |
980 |
|
|
uint32 y; |
981 |
|
|
{ |
982 |
|
|
COLOR ctmp; |
983 |
|
|
register int x; |
984 |
|
|
|
985 |
gwlarson |
2.19 |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY)) |
986 |
gregl |
2.9 |
quiterr("internal error 1 in Colr2RGB"); |
987 |
|
|
|
988 |
|
|
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
989 |
|
|
quiterr("error reading Radiance picture"); |
990 |
|
|
|
991 |
|
|
if (cvts.bradj) |
992 |
|
|
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
993 |
|
|
if (CHK(C_CXFM)) |
994 |
|
|
for (x = cvts.xmax; x--; ) { |
995 |
|
|
colr_color(ctmp, cvts.r.colrs[x]); |
996 |
|
|
colortrans(ctmp, cvts.cmat, ctmp); |
997 |
|
|
if (CHK(C_GAMUT)) |
998 |
|
|
clipgamut(ctmp, bright(ctmp), CGAMUT, |
999 |
|
|
cblack, cwhite); |
1000 |
|
|
setcolr(cvts.r.colrs[x], colval(ctmp,RED), |
1001 |
|
|
colval(ctmp,GRN), colval(ctmp,BLU)); |
1002 |
greg |
1.1 |
} |
1003 |
gregl |
2.9 |
colrs_gambs(cvts.r.colrs, cvts.xmax); |
1004 |
|
|
|
1005 |
|
|
for (x = cvts.xmax; x--; ) { |
1006 |
|
|
cvts.t.bp[3*x] = cvts.r.colrs[x][RED]; |
1007 |
|
|
cvts.t.bp[3*x+1] = cvts.r.colrs[x][GRN]; |
1008 |
|
|
cvts.t.bp[3*x+2] = cvts.r.colrs[x][BLU]; |
1009 |
greg |
1.1 |
} |
1010 |
gregl |
2.9 |
|
1011 |
|
|
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
1012 |
|
|
quiterr("error writing TIFF output"); |
1013 |
greg |
1.1 |
} |