1 |
< |
/* Copyright (c) 1991 Regents of the University of California */ |
1 |
> |
/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
2 |
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3 |
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#ifndef lint |
4 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
4 |
> |
static char SCCSid[] = "$SunId$ SGI"; |
5 |
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#endif |
6 |
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|
7 |
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/* |
8 |
< |
* program to convert between RADIANCE and 24-bit TIFF files. |
8 |
> |
* Program to convert between RADIANCE and TIFF files. |
9 |
> |
* Added experimental LogLuv encodings 7/97 (GWL). |
10 |
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*/ |
11 |
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|
12 |
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#include <stdio.h> |
13 |
< |
|
13 |
> |
#include <math.h> |
14 |
|
#include "tiffio.h" |
14 |
– |
|
15 |
|
#include "color.h" |
16 |
+ |
#include "resolu.h" |
17 |
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|
18 |
< |
extern double atof(); |
18 |
> |
#define GAMCOR 2.2 /* default gamma */ |
19 |
|
|
20 |
< |
extern char *malloc(), *realloc(); |
20 |
> |
#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_TWRD 0x80 /* TIFF data is 16-bit */ |
32 |
> |
#define C_PRIM 0x100 /* has assigned primaries */ |
33 |
|
|
34 |
< |
double gamma = 2.2; /* gamma correction */ |
34 |
> |
struct { |
35 |
> |
uint16 flags; /* conversion flags (defined above) */ |
36 |
> |
uint16 comp; /* TIFF compression type */ |
37 |
> |
uint16 phot; /* TIFF photometric type */ |
38 |
> |
uint16 pconf; /* TIFF planar configuration */ |
39 |
> |
float gamcor; /* gamma correction value */ |
40 |
> |
short bradj; /* Radiance exposure adjustment (stops) */ |
41 |
> |
uint16 orient; /* visual orientation (TIFF spec.) */ |
42 |
> |
double stonits; /* input conversion to nits */ |
43 |
> |
float pixrat; /* pixel aspect ratio */ |
44 |
> |
FILE *rfp; /* Radiance stream pointer */ |
45 |
> |
TIFF *tif; /* TIFF pointer */ |
46 |
> |
uint32 xmax, ymax; /* image dimensions */ |
47 |
> |
COLORMAT cmat; /* color transformation matrix */ |
48 |
> |
RGBPRIMS prims; /* RGB primaries */ |
49 |
> |
union { |
50 |
> |
COLR *colrs; /* 4-byte ???E pointer */ |
51 |
> |
COLOR *colors; /* float array pointer */ |
52 |
> |
char *p; /* generic pointer */ |
53 |
> |
} r; /* Radiance scanline */ |
54 |
> |
union { |
55 |
> |
uint8 *bp; /* byte pointer */ |
56 |
> |
uint16 *wp; /* word pointer */ |
57 |
> |
float *fp; /* float pointer */ |
58 |
> |
char *p; /* generic pointer */ |
59 |
> |
} t; /* TIFF scanline */ |
60 |
> |
int (*tf)(); /* translation procedure */ |
61 |
> |
} cvts = { /* conversion structure */ |
62 |
> |
0, COMPRESSION_NONE, PHOTOMETRIC_RGB, |
63 |
> |
PLANARCONFIG_CONTIG, GAMCOR, 0, 1, 1., 1., |
64 |
> |
}; |
65 |
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|
66 |
< |
int bradj = 0; /* brightness adjustment */ |
66 |
> |
#define CHK(f) (cvts.flags & (f)) |
67 |
> |
#define SET(f) (cvts.flags |= (f)) |
68 |
> |
#define CLR(f) (cvts.flags &= ~(f)) |
69 |
> |
#define TGL(f) (cvts.flags ^= (f)) |
70 |
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|
71 |
+ |
int Luv2Color(), L2Color(), RGB2Colr(), Gry2Colr(); |
72 |
+ |
int Color2Luv(), Color2L(), Colr2RGB(), Colr2Gry(); |
73 |
+ |
int RRGGBB2Color(), GGry2Color(); |
74 |
+ |
|
75 |
+ |
short ortab[8] = { /* orientation conversion table */ |
76 |
+ |
YMAJOR|YDECR, |
77 |
+ |
YMAJOR|YDECR|XDECR, |
78 |
+ |
YMAJOR|XDECR, |
79 |
+ |
YMAJOR, |
80 |
+ |
YDECR, |
81 |
+ |
XDECR|YDECR, |
82 |
+ |
XDECR, |
83 |
+ |
0 |
84 |
+ |
}; |
85 |
+ |
|
86 |
+ |
#define pixorder() ortab[cvts.orient-1] |
87 |
+ |
|
88 |
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char *progname; |
89 |
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|
90 |
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|
100 |
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for (i = 1; i < argc; i++) |
101 |
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if (argv[i][0] == '-') |
102 |
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switch (argv[i][1]) { |
103 |
< |
case 'g': |
104 |
< |
gamma = atof(argv[++i]); |
103 |
> |
case 'g': /* gamma correction */ |
104 |
> |
cvts.gamcor = atof(argv[++i]); |
105 |
|
break; |
106 |
< |
case 'e': |
106 |
> |
case 'x': /* XYZE Radiance output */ |
107 |
> |
TGL(C_XYZE); |
108 |
> |
break; |
109 |
> |
case 'z': /* LZW compressed output */ |
110 |
> |
cvts.comp = COMPRESSION_LZW; |
111 |
> |
break; |
112 |
> |
case 'L': /* LogLuv 32-bit output */ |
113 |
> |
cvts.comp = COMPRESSION_SGILOG; |
114 |
> |
cvts.phot = PHOTOMETRIC_LOGLUV; |
115 |
> |
break; |
116 |
> |
case 'l': /* LogLuv 24-bit output */ |
117 |
> |
cvts.comp = COMPRESSION_SGILOG24; |
118 |
> |
cvts.phot = PHOTOMETRIC_LOGLUV; |
119 |
> |
break; |
120 |
> |
case 'b': /* greyscale output? */ |
121 |
> |
TGL(C_GRY); |
122 |
> |
break; |
123 |
> |
case 'e': /* exposure adjustment */ |
124 |
|
if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
125 |
|
goto userr; |
126 |
< |
bradj = atoi(argv[++i]); |
126 |
> |
cvts.bradj = atoi(argv[++i]); |
127 |
|
break; |
128 |
< |
case 'r': |
128 |
> |
case 'r': /* reverse conversion? */ |
129 |
|
reverse = !reverse; |
130 |
|
break; |
131 |
|
case '\0': |
136 |
|
else |
137 |
|
break; |
138 |
|
doneopts: |
139 |
< |
setcolrgam(gamma); |
139 |
> |
if (reverse) { |
140 |
|
|
61 |
– |
if (reverse) |
141 |
|
if (i != argc-2 && i != argc-1) |
142 |
|
goto userr; |
143 |
< |
else |
144 |
< |
tiff2ra(argv[i], argv[i+1]); |
145 |
< |
else |
143 |
> |
|
144 |
> |
tiff2ra(i, argv); |
145 |
> |
|
146 |
> |
} else { |
147 |
> |
|
148 |
|
if (i != argc-2) |
149 |
|
goto userr; |
69 |
– |
else |
70 |
– |
ra2tiff(argv[i], argv[i+1]); |
150 |
|
|
151 |
+ |
if (CHK(C_GRY)) /* consistency corrections */ |
152 |
+ |
if (cvts.phot == PHOTOMETRIC_RGB) |
153 |
+ |
cvts.phot = PHOTOMETRIC_MINISBLACK; |
154 |
+ |
else { |
155 |
+ |
cvts.phot = PHOTOMETRIC_LOGL; |
156 |
+ |
cvts.comp = COMPRESSION_SGILOG; |
157 |
+ |
} |
158 |
+ |
|
159 |
+ |
ra2tiff(i, argv); |
160 |
+ |
} |
161 |
+ |
|
162 |
|
exit(0); |
163 |
|
userr: |
164 |
< |
fprintf(stderr, "Usage: %s [-r][-e +/-stops] input output\n", |
164 |
> |
fprintf(stderr, |
165 |
> |
"Usage: %s [-z|-L|-l][-b][-e +/-stops][-g gamma] {in.pic|-} out.tif\n", |
166 |
|
progname); |
167 |
+ |
fprintf(stderr, |
168 |
+ |
" Or: %s -r [-x][-e +/-stops][-g gamma] in.tif [out.pic|-]\n", |
169 |
+ |
progname); |
170 |
|
exit(1); |
171 |
|
} |
172 |
|
|
182 |
|
} |
183 |
|
|
184 |
|
|
185 |
< |
tiff2ra(inpf, outf) /* convert TIFF file to Radiance picture */ |
92 |
< |
char *inpf, *outf; |
185 |
> |
allocbufs() /* allocate scanline buffers */ |
186 |
|
{ |
187 |
< |
unsigned long xmax, ymax; |
188 |
< |
TIFF *tif; |
189 |
< |
unsigned short pconfig; |
190 |
< |
unsigned short hi; |
191 |
< |
register BYTE *scanin; |
192 |
< |
register COLR *scanout; |
193 |
< |
register int x; |
194 |
< |
int y; |
195 |
< |
/* open/check TIFF file */ |
196 |
< |
if ((tif = TIFFOpen(inpf, "r")) == NULL) |
197 |
< |
quiterr("cannot open TIFF input"); |
198 |
< |
if (!TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || hi != 3) |
199 |
< |
quiterr("unsupported samples per pixel"); |
200 |
< |
if (!TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &hi) || hi != 8) |
201 |
< |
quiterr("unsupported bits per sample"); |
202 |
< |
if (TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &hi) && hi != 2) |
203 |
< |
quiterr("unsupported photometric interpretation"); |
204 |
< |
if (!TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &pconfig) || |
205 |
< |
(pconfig != 1 && pconfig != 2)) |
206 |
< |
quiterr("unsupported planar configuration"); |
207 |
< |
if (!TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &xmax) || |
208 |
< |
!TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &ymax)) |
187 |
> |
int rsiz, tsiz; |
188 |
> |
|
189 |
> |
rsiz = CHK(C_RFLT) ? sizeof(COLOR) : sizeof(COLR); |
190 |
> |
tsiz = (CHK(C_TFLT) ? sizeof(float) : |
191 |
> |
CHK(C_TWRD) ? sizeof(uint16) : sizeof(uint8)) * |
192 |
> |
(CHK(C_GRY) ? 1 : 3); |
193 |
> |
cvts.r.p = (char *)malloc(rsiz*cvts.xmax); |
194 |
> |
cvts.t.p = (char *)malloc(tsiz*cvts.xmax); |
195 |
> |
if (cvts.r.p == NULL | cvts.t.p == NULL) |
196 |
> |
quiterr("no memory to allocate scanline buffers"); |
197 |
> |
} |
198 |
> |
|
199 |
> |
|
200 |
> |
initfromtif() /* initialize conversion from TIFF input */ |
201 |
> |
{ |
202 |
> |
uint16 hi; |
203 |
> |
float *fa, f1, f2; |
204 |
> |
|
205 |
> |
CLR(C_GRY|C_GAMMA|C_PRIM|C_RFLT|C_TFLT|C_CXFM); |
206 |
> |
|
207 |
> |
TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_PLANARCONFIG, &cvts.pconf); |
208 |
> |
|
209 |
> |
if (TIFFGetField(cvts.tif, TIFFTAG_PRIMARYCHROMATICITIES, &fa)) { |
210 |
> |
cvts.prims[RED][CIEX] = fa[0]; |
211 |
> |
cvts.prims[RED][CIEY] = fa[1]; |
212 |
> |
cvts.prims[GRN][CIEX] = fa[2]; |
213 |
> |
cvts.prims[GRN][CIEY] = fa[3]; |
214 |
> |
cvts.prims[BLU][CIEX] = fa[4]; |
215 |
> |
cvts.prims[BLU][CIEY] = fa[5]; |
216 |
> |
cvts.prims[WHT][CIEX] = 1./3.; |
217 |
> |
cvts.prims[WHT][CIEY] = 1./3.; |
218 |
> |
if (TIFFGetField(cvts.tif, TIFFTAG_WHITEPOINT, &fa)) { |
219 |
> |
cvts.prims[WHT][CIEX] = fa[0]; |
220 |
> |
cvts.prims[WHT][CIEY] = fa[1]; |
221 |
> |
} |
222 |
> |
SET(C_PRIM); |
223 |
> |
} |
224 |
> |
|
225 |
> |
if (!TIFFGetField(cvts.tif, TIFFTAG_COMPRESSION, &cvts.comp)) |
226 |
> |
cvts.comp = COMPRESSION_NONE; |
227 |
> |
|
228 |
> |
if (TIFFGetField(cvts.tif, TIFFTAG_XRESOLUTION, &f1) && |
229 |
> |
TIFFGetField(cvts.tif, TIFFTAG_YRESOLUTION, &f2)) |
230 |
> |
cvts.pixrat = f1/f2; |
231 |
> |
|
232 |
> |
TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_ORIENTATION, &cvts.orient); |
233 |
> |
|
234 |
> |
if (!TIFFGetFieldDefaulted(cvts.tif, TIFFTAG_PHOTOMETRIC, &cvts.phot)) |
235 |
> |
quiterr("TIFF has unspecified photometric type"); |
236 |
> |
|
237 |
> |
switch (cvts.phot) { |
238 |
> |
case PHOTOMETRIC_LOGLUV: |
239 |
> |
SET(C_RFLT|C_TFLT); |
240 |
> |
if (!CHK(C_XYZE)) { |
241 |
> |
cpcolormat(cvts.cmat, xyz2rgbmat); |
242 |
> |
SET(C_CXFM|C_GAMUT); |
243 |
> |
} else if (cvts.comp == COMPRESSION_SGILOG) |
244 |
> |
SET(C_GAMUT); |
245 |
> |
if (cvts.pconf != PLANARCONFIG_CONTIG) |
246 |
> |
quiterr("cannot handle separate Luv planes"); |
247 |
> |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
248 |
> |
SGILOGDATAFMT_FLOAT); |
249 |
> |
cvts.tf = Luv2Color; |
250 |
> |
break; |
251 |
> |
case PHOTOMETRIC_LOGL: |
252 |
> |
SET(C_GRY|C_RFLT|C_TFLT|C_GAMUT); |
253 |
> |
cvts.pconf = PLANARCONFIG_CONTIG; |
254 |
> |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
255 |
> |
SGILOGDATAFMT_FLOAT); |
256 |
> |
cvts.tf = L2Color; |
257 |
> |
break; |
258 |
> |
case PHOTOMETRIC_YCBCR: |
259 |
> |
if (cvts.comp == COMPRESSION_JPEG && |
260 |
> |
cvts.pconf == PLANARCONFIG_CONTIG) { |
261 |
> |
TIFFSetField(cvts.tif, TIFFTAG_JPEGCOLORMODE, |
262 |
> |
JPEGCOLORMODE_RGB); |
263 |
> |
cvts.phot = PHOTOMETRIC_RGB; |
264 |
> |
} else |
265 |
> |
quiterr("unsupported photometric type"); |
266 |
> |
/* fall through */ |
267 |
> |
case PHOTOMETRIC_RGB: |
268 |
> |
SET(C_GAMMA); |
269 |
> |
setcolrgam(cvts.gamcor); |
270 |
> |
if (CHK(C_XYZE)) { |
271 |
> |
comprgb2xyzmat(cvts.cmat, |
272 |
> |
CHK(C_PRIM) ? cvts.prims : stdprims); |
273 |
> |
SET(C_CXFM); |
274 |
> |
} |
275 |
> |
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
276 |
> |
hi != 3) |
277 |
> |
quiterr("unsupported samples per pixel for RGB"); |
278 |
> |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi) || |
279 |
> |
hi != 8 & hi != 16) |
280 |
> |
quiterr("unsupported bits per sample for RGB"); |
281 |
> |
if (hi == 8) |
282 |
> |
cvts.tf = RGB2Colr; |
283 |
> |
else { |
284 |
> |
cvts.tf = RRGGBB2Color; |
285 |
> |
SET(C_RFLT|C_TWRD); |
286 |
> |
} |
287 |
> |
break; |
288 |
> |
case PHOTOMETRIC_MINISBLACK: |
289 |
> |
SET(C_GRY|C_GAMMA); |
290 |
> |
setcolrgam(cvts.gamcor); |
291 |
> |
cvts.pconf = PLANARCONFIG_CONTIG; |
292 |
> |
if (!TIFFGetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, &hi) || |
293 |
> |
hi != 1) |
294 |
> |
quiterr("unsupported samples per pixel for greyscale"); |
295 |
> |
if (!TIFFGetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, &hi) || |
296 |
> |
hi != 8 & hi != 16) |
297 |
> |
quiterr("unsupported bits per sample for greyscale"); |
298 |
> |
if (hi == 8) |
299 |
> |
cvts.tf = Gry2Colr; |
300 |
> |
else { |
301 |
> |
cvts.tf = GGry2Color; |
302 |
> |
SET(C_RFLT|C_TWRD); |
303 |
> |
} |
304 |
> |
break; |
305 |
> |
default: |
306 |
> |
quiterr("unsupported photometric type"); |
307 |
> |
break; |
308 |
> |
} |
309 |
> |
|
310 |
> |
if (!TIFFGetField(cvts.tif, TIFFTAG_IMAGEWIDTH, &cvts.xmax) || |
311 |
> |
!TIFFGetField(cvts.tif, TIFFTAG_IMAGELENGTH, &cvts.ymax)) |
312 |
|
quiterr("unknown input image resolution"); |
313 |
< |
/* allocate scanlines */ |
314 |
< |
scanin = (BYTE *)malloc(TIFFScanlineSize(tif)); |
315 |
< |
scanout = (COLR *)malloc(xmax*sizeof(COLR)); |
316 |
< |
if (scanin == NULL || scanout == NULL) |
317 |
< |
quiterr("out of memory in tiff2ra"); |
318 |
< |
/* open output and write header */ |
319 |
< |
if (outf != NULL && strcmp(outf, "-") && |
320 |
< |
freopen(outf, "w", stdout) == NULL) |
321 |
< |
quiterr("cannot open Radiance output file"); |
322 |
< |
fputs(progname, stdout); |
323 |
< |
if (bradj) |
324 |
< |
printf(" -e %+d", bradj); |
325 |
< |
fputs(" -r\n", stdout); |
326 |
< |
fputformat(COLRFMT, stdout); |
327 |
< |
putchar('\n'); |
328 |
< |
fputresolu(YDECR|YMAJOR, xmax, ymax, stdout); |
329 |
< |
/* convert image */ |
330 |
< |
for (y = 0; y < ymax; y++) { |
331 |
< |
if (pconfig == 1) { |
332 |
< |
if (TIFFReadScanline(tif, scanin, y, 0) < 0) |
333 |
< |
goto readerr; |
334 |
< |
for (x = 0; x < xmax; x++) { |
335 |
< |
scanout[x][RED] = scanin[3*x]; |
336 |
< |
scanout[x][GRN] = scanin[3*x+1]; |
337 |
< |
scanout[x][BLU] = scanin[3*x+2]; |
338 |
< |
} |
339 |
< |
} else { |
340 |
< |
if (TIFFReadScanline(tif, scanin, y, 0) < 0) |
341 |
< |
goto readerr; |
342 |
< |
for (x = 0; x < xmax; x++) |
343 |
< |
scanout[x][RED] = scanin[x]; |
344 |
< |
if (TIFFReadScanline(tif, scanin, y, 1) < 0) |
345 |
< |
goto readerr; |
346 |
< |
for (x = 0; x < xmax; x++) |
347 |
< |
scanout[x][GRN] = scanin[x]; |
348 |
< |
if (TIFFReadScanline(tif, scanin, y, 2) < 0) |
349 |
< |
goto readerr; |
350 |
< |
for (x = 0; x < xmax; x++) |
351 |
< |
scanout[x][BLU] = scanin[x]; |
313 |
> |
|
314 |
> |
if (!TIFFGetField(cvts.tif, TIFFTAG_STONITS, &cvts.stonits)) |
315 |
> |
cvts.stonits = 1.; |
316 |
> |
/* add to Radiance header */ |
317 |
> |
if (cvts.pixrat < .99 || cvts.pixrat > 1.01) |
318 |
> |
fputaspect(cvts.pixrat, cvts.rfp); |
319 |
> |
if (CHK(C_XYZE)) { |
320 |
> |
fputexpos(pow(2.,(double)cvts.bradj)/cvts.stonits, cvts.rfp); |
321 |
> |
fputformat(CIEFMT, cvts.rfp); |
322 |
> |
} else { |
323 |
> |
if (CHK(C_PRIM)) |
324 |
> |
fputprims(cvts.prims, cvts.rfp); |
325 |
> |
fputexpos(WHTEFFICACY*pow(2.,(double)cvts.bradj)/cvts.stonits, |
326 |
> |
cvts.rfp); |
327 |
> |
fputformat(COLRFMT, cvts.rfp); |
328 |
> |
} |
329 |
> |
|
330 |
> |
allocbufs(); /* allocate scanline buffers */ |
331 |
> |
} |
332 |
> |
|
333 |
> |
|
334 |
> |
tiff2ra(ac, av) /* convert TIFF image to Radiance picture */ |
335 |
> |
int ac; |
336 |
> |
char *av[]; |
337 |
> |
{ |
338 |
> |
int32 y; |
339 |
> |
/* open TIFF input */ |
340 |
> |
if ((cvts.tif = TIFFOpen(av[ac], "r")) == NULL) |
341 |
> |
quiterr("cannot open TIFF input"); |
342 |
> |
/* open Radiance output */ |
343 |
> |
if (av[ac+1] == NULL || !strcmp(av[ac+1], "-")) |
344 |
> |
cvts.rfp = stdout; |
345 |
> |
else if ((cvts.rfp = fopen(av[ac+1], "w")) == NULL) |
346 |
> |
quiterr("cannot open Radiance output picture"); |
347 |
> |
/* start output header */ |
348 |
> |
newheader("RADIANCE", cvts.rfp); |
349 |
> |
printargs(ac, av, cvts.rfp); |
350 |
> |
|
351 |
> |
initfromtif(); /* initialize conversion */ |
352 |
> |
|
353 |
> |
fputc('\n', cvts.rfp); /* finish Radiance header */ |
354 |
> |
fputresolu(pixorder(), (int)cvts.xmax, (int)cvts.ymax, cvts.rfp); |
355 |
> |
|
356 |
> |
for (y = 0; y < cvts.ymax; y++) /* convert image */ |
357 |
> |
(*cvts.tf)(y); |
358 |
> |
/* clean up */ |
359 |
> |
fclose(cvts.rfp); |
360 |
> |
TIFFClose(cvts.tif); |
361 |
> |
} |
362 |
> |
|
363 |
> |
|
364 |
> |
int |
365 |
> |
headline(s) /* process Radiance input header line */ |
366 |
> |
char *s; |
367 |
> |
{ |
368 |
> |
char fmt[32]; |
369 |
> |
|
370 |
> |
if (formatval(fmt, s)) { |
371 |
> |
if (!strcmp(fmt, COLRFMT)) |
372 |
> |
CLR(C_XYZE); |
373 |
> |
else if (!strcmp(fmt, CIEFMT)) |
374 |
> |
SET(C_XYZE); |
375 |
> |
else |
376 |
> |
quiterr("unrecognized input picture format"); |
377 |
> |
return(1); |
378 |
> |
} |
379 |
> |
if (isexpos(s)) { |
380 |
> |
cvts.stonits /= exposval(s); |
381 |
> |
return(1); |
382 |
> |
} |
383 |
> |
if (isaspect(s)) { |
384 |
> |
cvts.pixrat *= aspectval(s); |
385 |
> |
return(1); |
386 |
> |
} |
387 |
> |
if (isprims(s)) { |
388 |
> |
primsval(cvts.prims, s); |
389 |
> |
SET(C_PRIM); |
390 |
> |
return(1); |
391 |
> |
} |
392 |
> |
return(0); |
393 |
> |
} |
394 |
> |
|
395 |
> |
|
396 |
> |
initfromrad() /* initialize input from a Radiance picture */ |
397 |
> |
{ |
398 |
> |
int i1, i2, po; |
399 |
> |
/* read Radiance header */ |
400 |
> |
CLR(C_RFLT|C_TFLT|C_XYZE|C_PRIM|C_GAMMA|C_CXFM); |
401 |
> |
cvts.stonits = 1.; |
402 |
> |
cvts.pixrat = 1.; |
403 |
> |
cvts.pconf = PLANARCONFIG_CONTIG; |
404 |
> |
getheader(cvts.rfp, headline, NULL); |
405 |
> |
if ((po = fgetresolu(&i1, &i2, cvts.rfp)) < 0) |
406 |
> |
quiterr("bad Radiance picture"); |
407 |
> |
cvts.xmax = i1; cvts.ymax = i2; |
408 |
> |
for (i1 = 0; i1 < 8; i1++) /* interpret orientation */ |
409 |
> |
if (ortab[i1] == po) { |
410 |
> |
cvts.orient = i1 + 1; |
411 |
> |
break; |
412 |
|
} |
413 |
< |
gambs_colrs(scanout, xmax); |
414 |
< |
if (bradj) |
415 |
< |
shiftcolrs(scanout, xmax, bradj); |
416 |
< |
if (fwritecolrs(scanout, xmax, stdout) < 0) |
417 |
< |
quiterr("error writing Radiance picture"); |
413 |
> |
if (i1 >= 8) |
414 |
> |
quiterr("internal error 1 in initfromrad"); |
415 |
> |
if (!(po & YMAJOR)) |
416 |
> |
cvts.pixrat = 1./cvts.pixrat; |
417 |
> |
if (!CHK(C_XYZE)) |
418 |
> |
cvts.stonits *= WHTEFFICACY; |
419 |
> |
/* set up conversion */ |
420 |
> |
TIFFSetField(cvts.tif, TIFFTAG_COMPRESSION, cvts.comp); |
421 |
> |
TIFFSetField(cvts.tif, TIFFTAG_PHOTOMETRIC, cvts.phot); |
422 |
> |
|
423 |
> |
switch (cvts.phot) { |
424 |
> |
case PHOTOMETRIC_LOGLUV: |
425 |
> |
SET(C_RFLT|C_TFLT); |
426 |
> |
CLR(C_GRY); |
427 |
> |
if (!CHK(C_XYZE)) { |
428 |
> |
cpcolormat(cvts.cmat, rgb2xyzmat); |
429 |
> |
SET(C_CXFM); |
430 |
> |
} |
431 |
> |
if (cvts.comp != COMPRESSION_SGILOG && |
432 |
> |
cvts.comp != COMPRESSION_SGILOG24) |
433 |
> |
quiterr("internal error 2 in initfromrad"); |
434 |
> |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
435 |
> |
SGILOGDATAFMT_FLOAT); |
436 |
> |
cvts.tf = Color2Luv; |
437 |
> |
break; |
438 |
> |
case PHOTOMETRIC_LOGL: |
439 |
> |
SET(C_GRY|C_RFLT|C_TFLT); |
440 |
> |
if (cvts.comp != COMPRESSION_SGILOG) |
441 |
> |
quiterr("internal error 3 in initfromrad"); |
442 |
> |
TIFFSetField(cvts.tif, TIFFTAG_SGILOGDATAFMT, |
443 |
> |
SGILOGDATAFMT_FLOAT); |
444 |
> |
cvts.tf = Color2L; |
445 |
> |
break; |
446 |
> |
case PHOTOMETRIC_RGB: |
447 |
> |
SET(C_GAMMA|C_GAMUT); |
448 |
> |
CLR(C_GRY); |
449 |
> |
setcolrgam(cvts.gamcor); |
450 |
> |
if (CHK(C_XYZE)) { |
451 |
> |
compxyz2rgbmat(cvts.cmat, |
452 |
> |
CHK(C_PRIM) ? cvts.prims : stdprims); |
453 |
> |
SET(C_CXFM); |
454 |
> |
} |
455 |
> |
if (CHK(C_PRIM)) { |
456 |
> |
TIFFSetField(cvts.tif, TIFFTAG_PRIMARYCHROMATICITIES, |
457 |
> |
(float *)cvts.prims); |
458 |
> |
TIFFSetField(cvts.tif, TIFFTAG_WHITEPOINT, |
459 |
> |
(float *)cvts.prims[WHT]); |
460 |
> |
} |
461 |
> |
cvts.tf = Colr2RGB; |
462 |
> |
break; |
463 |
> |
case PHOTOMETRIC_MINISBLACK: |
464 |
> |
SET(C_GRY|C_GAMMA|C_GAMUT); |
465 |
> |
setcolrgam(cvts.gamcor); |
466 |
> |
cvts.tf = Colr2Gry; |
467 |
> |
break; |
468 |
> |
default: |
469 |
> |
quiterr("internal error 4 in initfromrad"); |
470 |
> |
break; |
471 |
|
} |
472 |
+ |
/* set other TIFF fields */ |
473 |
+ |
TIFFSetField(cvts.tif, TIFFTAG_IMAGEWIDTH, cvts.xmax); |
474 |
+ |
TIFFSetField(cvts.tif, TIFFTAG_IMAGELENGTH, cvts.ymax); |
475 |
+ |
TIFFSetField(cvts.tif, TIFFTAG_SAMPLESPERPIXEL, CHK(C_GRY) ? 1 : 3); |
476 |
+ |
TIFFSetField(cvts.tif, TIFFTAG_BITSPERSAMPLE, CHK(C_TFLT) ? 32 : 8); |
477 |
+ |
TIFFSetField(cvts.tif, TIFFTAG_XRESOLUTION, 72.); |
478 |
+ |
TIFFSetField(cvts.tif, TIFFTAG_YRESOLUTION, 72./cvts.pixrat); |
479 |
+ |
TIFFSetField(cvts.tif, TIFFTAG_ORIENTATION, cvts.orient); |
480 |
+ |
TIFFSetField(cvts.tif, TIFFTAG_RESOLUTIONUNIT, 2); |
481 |
+ |
TIFFSetField(cvts.tif, TIFFTAG_PLANARCONFIG, cvts.pconf); |
482 |
+ |
TIFFSetField(cvts.tif, TIFFTAG_STONITS, |
483 |
+ |
cvts.stonits/pow(2.,(double)cvts.bradj)); |
484 |
+ |
if (cvts.comp == COMPRESSION_NONE) |
485 |
+ |
i1 = TIFFScanlineSize(cvts.tif); |
486 |
+ |
else |
487 |
+ |
i1 = 3*cvts.xmax; /* conservative guess */ |
488 |
+ |
i2 = 8192/i1; /* compute good strip size */ |
489 |
+ |
if (i2 < 1) i2 = 1; |
490 |
+ |
TIFFSetField(cvts.tif, TIFFTAG_ROWSPERSTRIP, (uint32)i2); |
491 |
+ |
|
492 |
+ |
allocbufs(); /* allocate scanline buffers */ |
493 |
+ |
} |
494 |
+ |
|
495 |
+ |
|
496 |
+ |
ra2tiff(ac, av) /* convert Radiance picture to TIFF image */ |
497 |
+ |
int ac; |
498 |
+ |
char *av[]; |
499 |
+ |
{ |
500 |
+ |
uint32 y; |
501 |
+ |
/* open Radiance file */ |
502 |
+ |
if (!strcmp(av[ac], "-")) |
503 |
+ |
cvts.rfp = stdin; |
504 |
+ |
else if ((cvts.rfp = fopen(av[ac], "r")) == NULL) |
505 |
+ |
quiterr("cannot open Radiance input picture"); |
506 |
+ |
/* open TIFF file */ |
507 |
+ |
if ((cvts.tif = TIFFOpen(av[ac+1], "w")) == NULL) |
508 |
+ |
quiterr("cannot open TIFF output"); |
509 |
+ |
|
510 |
+ |
initfromrad(); /* initialize conversion */ |
511 |
+ |
|
512 |
+ |
for (y = 0; y < cvts.ymax; y++) /* convert image */ |
513 |
+ |
(*cvts.tf)(y); |
514 |
|
/* clean up */ |
515 |
< |
free((char *)scanin); |
516 |
< |
free((char *)scanout); |
517 |
< |
TIFFClose(tif); |
515 |
> |
TIFFClose(cvts.tif); |
516 |
> |
fclose(cvts.rfp); |
517 |
> |
} |
518 |
> |
|
519 |
> |
|
520 |
> |
int |
521 |
> |
Luv2Color(y) /* read/convert/write Luv->COLOR scanline */ |
522 |
> |
uint32 y; |
523 |
> |
{ |
524 |
> |
register int x; |
525 |
> |
|
526 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT)) |
527 |
> |
quiterr("internal error 1 in Luv2Color"); |
528 |
> |
|
529 |
> |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
530 |
> |
quiterr("error reading TIFF input"); |
531 |
> |
|
532 |
> |
for (x = cvts.xmax; x--; ) { |
533 |
> |
colval(cvts.r.colors[x],CIEX) = cvts.t.fp[3*x]; |
534 |
> |
colval(cvts.r.colors[x],CIEY) = cvts.t.fp[3*x + 1]; |
535 |
> |
colval(cvts.r.colors[x],CIEZ) = cvts.t.fp[3*x + 2]; |
536 |
> |
if (CHK(C_CXFM)) |
537 |
> |
colortrans(cvts.r.colors[x], cvts.cmat, |
538 |
> |
cvts.r.colors[x]); |
539 |
> |
if (CHK(C_GAMUT)) |
540 |
> |
clipgamut(cvts.r.colors[x], cvts.t.fp[3*x + 1], |
541 |
> |
CGAMUT_LOWER, cblack, cwhite); |
542 |
> |
} |
543 |
> |
if (cvts.bradj) { |
544 |
> |
double m = pow(2.,(double)cvts.bradj); |
545 |
> |
for (x = cvts.xmax; x--; ) |
546 |
> |
scalecolor(cvts.r.colors[x], m); |
547 |
> |
} |
548 |
> |
|
549 |
> |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
550 |
> |
quiterr("error writing Radiance picture"); |
551 |
> |
} |
552 |
> |
|
553 |
> |
|
554 |
> |
int |
555 |
> |
RRGGBB2Color(y) /* read/convert/write RGB16->COLOR scanline */ |
556 |
> |
uint32 y; |
557 |
> |
{ |
558 |
> |
int dogamma = cvts.gamcor < 0.99 | cvts.gamcor > 1.01; |
559 |
> |
register double d; |
560 |
> |
register int x; |
561 |
> |
|
562 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_TWRD|C_RFLT)) |
563 |
> |
quiterr("internal error 1 in RRGGBB2Color"); |
564 |
> |
|
565 |
> |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
566 |
> |
quiterr("error reading TIFF input"); |
567 |
> |
|
568 |
> |
for (x = cvts.xmax; x--; ) { |
569 |
> |
d = (cvts.t.wp[3*x] + 0.5)*(1./(1L<<16)); |
570 |
> |
if (dogamma) d = pow(d, cvts.gamcor); |
571 |
> |
colval(cvts.r.colors[x],RED) = d; |
572 |
> |
d = (cvts.t.wp[3*x + 1] + 0.5)*(1./(1L<<16)); |
573 |
> |
if (dogamma) d = pow(d, cvts.gamcor); |
574 |
> |
colval(cvts.r.colors[x],GRN) = d; |
575 |
> |
d = (cvts.t.wp[3*x + 2] + 0.5)*(1./(1L<<16)); |
576 |
> |
if (dogamma) d = pow(d, cvts.gamcor); |
577 |
> |
colval(cvts.r.colors[x],BLU) = d; |
578 |
> |
if (CHK(C_CXFM)) |
579 |
> |
colortrans(cvts.r.colors[x], cvts.cmat, |
580 |
> |
cvts.r.colors[x]); |
581 |
> |
if (CHK(C_GAMUT)) |
582 |
> |
clipgamut(cvts.r.colors[x], cvts.t.fp[3*x + 1], |
583 |
> |
CGAMUT_LOWER, cblack, cwhite); |
584 |
> |
} |
585 |
> |
if (cvts.bradj) { |
586 |
> |
d = pow(2.,(double)cvts.bradj); |
587 |
> |
for (x = cvts.xmax; x--; ) |
588 |
> |
scalecolor(cvts.r.colors[x], d); |
589 |
> |
} |
590 |
> |
|
591 |
> |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
592 |
> |
quiterr("error writing Radiance picture"); |
593 |
> |
} |
594 |
> |
|
595 |
> |
|
596 |
> |
int |
597 |
> |
L2Color(y) /* read/convert/write L16->COLOR scanline */ |
598 |
> |
uint32 y; |
599 |
> |
{ |
600 |
> |
register int x; |
601 |
> |
|
602 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
603 |
> |
quiterr("internal error 1 in L2Color"); |
604 |
> |
|
605 |
> |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
606 |
> |
quiterr("error reading TIFF input"); |
607 |
> |
|
608 |
> |
for (x = cvts.xmax; x--; ) |
609 |
> |
colval(cvts.r.colors[x],RED) = |
610 |
> |
colval(cvts.r.colors[x],GRN) = |
611 |
> |
colval(cvts.r.colors[x],BLU) = |
612 |
> |
cvts.t.fp[x] > 0. ? cvts.t.fp[x] : 0.; |
613 |
> |
|
614 |
> |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
615 |
> |
quiterr("error writing Radiance picture"); |
616 |
> |
} |
617 |
> |
|
618 |
> |
|
619 |
> |
int |
620 |
> |
RGB2Colr(y) /* read/convert/write RGB->COLR scanline */ |
621 |
> |
uint32 y; |
622 |
> |
{ |
623 |
> |
COLOR ctmp; |
624 |
> |
register int x; |
625 |
> |
|
626 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY)) |
627 |
> |
quiterr("internal error 1 in RGB2Colr"); |
628 |
> |
|
629 |
> |
if (cvts.pconf == PLANARCONFIG_CONTIG) { |
630 |
> |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
631 |
> |
goto readerr; |
632 |
> |
for (x = cvts.xmax; x--; ) { |
633 |
> |
cvts.r.colrs[x][RED] = cvts.t.bp[3*x]; |
634 |
> |
cvts.r.colrs[x][GRN] = cvts.t.bp[3*x + 1]; |
635 |
> |
cvts.r.colrs[x][BLU] = cvts.t.bp[3*x + 2]; |
636 |
> |
} |
637 |
> |
} else { |
638 |
> |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
639 |
> |
goto readerr; |
640 |
> |
if (TIFFReadScanline(cvts.tif, |
641 |
> |
(tdata_t)(cvts.t.bp + cvts.xmax), y, 1) < 0) |
642 |
> |
goto readerr; |
643 |
> |
if (TIFFReadScanline(cvts.tif, |
644 |
> |
(tdata_t)(cvts.t.bp + 2*cvts.xmax), y, 2) < 0) |
645 |
> |
goto readerr; |
646 |
> |
for (x = cvts.xmax; x--; ) { |
647 |
> |
cvts.r.colrs[x][RED] = cvts.t.bp[x]; |
648 |
> |
cvts.r.colrs[x][GRN] = cvts.t.bp[cvts.xmax + x]; |
649 |
> |
cvts.r.colrs[x][BLU] = cvts.t.bp[2*cvts.xmax + x]; |
650 |
> |
} |
651 |
> |
} |
652 |
> |
|
653 |
> |
gambs_colrs(cvts.r.colrs, cvts.xmax); |
654 |
> |
if (CHK(C_CXFM)) |
655 |
> |
for (x = cvts.xmax; x--; ) { |
656 |
> |
colr_color(ctmp, cvts.r.colrs[x]); |
657 |
> |
colortrans(ctmp, cvts.cmat, ctmp); |
658 |
> |
if (CHK(C_GAMUT)) /* !CHK(C_XYZE) */ |
659 |
> |
clipgamut(ctmp, bright(ctmp), CGAMUT_LOWER, |
660 |
> |
cblack, cwhite); |
661 |
> |
setcolr(cvts.r.colrs[x], colval(ctmp,RED), |
662 |
> |
colval(ctmp,GRN), colval(ctmp,BLU)); |
663 |
> |
} |
664 |
> |
if (cvts.bradj) |
665 |
> |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
666 |
> |
|
667 |
> |
if (fwritecolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
668 |
> |
quiterr("error writing Radiance picture"); |
669 |
|
return; |
670 |
|
readerr: |
671 |
|
quiterr("error reading TIFF input"); |
672 |
|
} |
673 |
|
|
674 |
|
|
675 |
< |
ra2tiff(inpf, outf) /* convert Radiance file to 24-bit TIFF */ |
676 |
< |
char *inpf, *outf; |
675 |
> |
int |
676 |
> |
Gry2Colr(y) /* read/convert/write G8->COLR scanline */ |
677 |
> |
uint32 y; |
678 |
|
{ |
176 |
– |
TIFF *tif; |
177 |
– |
int xmax, ymax; |
178 |
– |
BYTE *scanout; |
179 |
– |
COLR *scanin; |
679 |
|
register int x; |
680 |
< |
int y; |
681 |
< |
/* open Radiance file */ |
682 |
< |
if (strcmp(inpf, "-") && freopen(inpf, "r", stdin) == NULL) |
683 |
< |
quiterr("cannot open Radiance input file"); |
684 |
< |
if (checkheader(stdin, COLRFMT, NULL) < 0 || |
685 |
< |
fgetresolu(&xmax, &ymax, stdin) != (YDECR|YMAJOR)) |
686 |
< |
quiterr("bad Radiance picture"); |
687 |
< |
/* open TIFF file */ |
688 |
< |
if ((tif = TIFFOpen(outf, "w")) == NULL) |
689 |
< |
quiterr("cannot open TIFF output"); |
690 |
< |
TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, (unsigned long)xmax); |
691 |
< |
TIFFSetField(tif, TIFFTAG_IMAGELENGTH, (unsigned long)ymax); |
692 |
< |
TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3); |
693 |
< |
TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8); |
694 |
< |
TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, 2); |
695 |
< |
TIFFSetField(tif, TIFFTAG_PLANARCONFIG, 1); |
696 |
< |
/* allocate scanlines */ |
697 |
< |
scanin = (COLR *)malloc(xmax*sizeof(COLR)); |
698 |
< |
scanout = (BYTE *)malloc(TIFFScanlineSize(tif)); |
699 |
< |
if (scanin == NULL || scanout == NULL) |
700 |
< |
quiterr("out of memory in ra2tiff"); |
701 |
< |
/* convert image */ |
702 |
< |
for (y = 0; y < ymax; y++) { |
703 |
< |
if (freadcolrs(scanin, xmax, stdin) < 0) |
704 |
< |
quiterr("error reading Radiance picture"); |
705 |
< |
if (bradj) |
706 |
< |
shiftcolrs(scanin, xmax, bradj); |
707 |
< |
colrs_gambs(scanin, xmax); |
708 |
< |
for (x = 0; x < xmax; x++) { |
709 |
< |
scanout[3*x] = scanin[x][RED]; |
710 |
< |
scanout[3*x+1] = scanin[x][GRN]; |
711 |
< |
scanout[3*x+2] = scanin[x][BLU]; |
680 |
> |
|
681 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != C_GRY) |
682 |
> |
quiterr("internal error 1 in Gry2Colr"); |
683 |
> |
|
684 |
> |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
685 |
> |
quiterr("error reading TIFF input"); |
686 |
> |
|
687 |
> |
for (x = cvts.xmax; x--; ) |
688 |
> |
cvts.r.colrs[x][RED] = |
689 |
> |
cvts.r.colrs[x][GRN] = |
690 |
> |
cvts.r.colrs[x][BLU] = cvts.t.bp[x]; |
691 |
> |
|
692 |
> |
gambs_colrs(cvts.r.colrs, cvts.xmax); |
693 |
> |
if (cvts.bradj) |
694 |
> |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
695 |
> |
|
696 |
> |
if (fwritecolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
697 |
> |
quiterr("error writing Radiance picture"); |
698 |
> |
} |
699 |
> |
|
700 |
> |
|
701 |
> |
int |
702 |
> |
GGry2Color(y) /* read/convert/write G16->COLOR scanline */ |
703 |
> |
uint32 y; |
704 |
> |
{ |
705 |
> |
int dogamma = cvts.gamcor < 0.99 | cvts.gamcor > 1.01; |
706 |
> |
double m; |
707 |
> |
register double d; |
708 |
> |
register int x; |
709 |
> |
|
710 |
> |
if (CHK(C_TFLT|C_TWRD|C_GRY|C_RFLT) != (C_GRY|C_RFLT|C_TWRD)) |
711 |
> |
quiterr("internal error 1 in GGry2Color"); |
712 |
> |
|
713 |
> |
if (TIFFReadScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
714 |
> |
quiterr("error reading TIFF input"); |
715 |
> |
|
716 |
> |
if (cvts.bradj) |
717 |
> |
m = pow(2., (double)cvts.bradj); |
718 |
> |
for (x = cvts.xmax; x--; ) { |
719 |
> |
d = (cvts.t.wp[x] + 0.5)*(1./(1L<<16)); |
720 |
> |
if (dogamma) d = pow(d, cvts.gamcor); |
721 |
> |
if (cvts.bradj) d *= m; |
722 |
> |
colval(cvts.r.colors[x],RED) = |
723 |
> |
colval(cvts.r.colors[x],GRN) = |
724 |
> |
colval(cvts.r.colors[x],BLU) = d; |
725 |
> |
} |
726 |
> |
if (fwritescan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
727 |
> |
quiterr("error writing Radiance picture"); |
728 |
> |
} |
729 |
> |
|
730 |
> |
|
731 |
> |
int |
732 |
> |
Color2L(y) /* read/convert/write COLOR->L16 scanline */ |
733 |
> |
uint32 y; |
734 |
> |
{ |
735 |
> |
double m = pow(2.,(double)cvts.bradj); |
736 |
> |
register int x; |
737 |
> |
|
738 |
> |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY) != (C_RFLT|C_TFLT|C_GRY)) |
739 |
> |
quiterr("internal error 1 in Color2L"); |
740 |
> |
|
741 |
> |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
742 |
> |
quiterr("error reading Radiance picture"); |
743 |
> |
|
744 |
> |
for (x = cvts.xmax; x--; ) |
745 |
> |
cvts.t.fp[x] = m*( CHK(C_XYZE) ? colval(cvts.r.colors[x],CIEY) |
746 |
> |
: bright(cvts.r.colors[x]) ); |
747 |
> |
|
748 |
> |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
749 |
> |
quiterr("error writing TIFF output"); |
750 |
> |
} |
751 |
> |
|
752 |
> |
|
753 |
> |
int |
754 |
> |
Color2Luv(y) /* read/convert/write COLOR->Luv scanline */ |
755 |
> |
uint32 y; |
756 |
> |
{ |
757 |
> |
register int x; |
758 |
> |
|
759 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != (C_RFLT|C_TFLT)) |
760 |
> |
quiterr("internal error 1 in Color2Luv"); |
761 |
> |
|
762 |
> |
if (freadscan(cvts.r.colors, cvts.xmax, cvts.rfp) < 0) |
763 |
> |
quiterr("error reading Radiance picture"); |
764 |
> |
|
765 |
> |
if (CHK(C_CXFM)) |
766 |
> |
for (x = cvts.xmax; x--; ) |
767 |
> |
colortrans(cvts.r.colors[x], cvts.cmat, |
768 |
> |
cvts.r.colors[x]); |
769 |
> |
if (cvts.bradj) { |
770 |
> |
double m = pow(2.,(double)cvts.bradj); |
771 |
> |
for (x = cvts.xmax; x--; ) |
772 |
> |
scalecolor(cvts.r.colors[x], m); |
773 |
> |
} |
774 |
> |
|
775 |
> |
for (x = cvts.xmax; x--; ) { |
776 |
> |
cvts.t.fp[3*x] = colval(cvts.r.colors[x],CIEX); |
777 |
> |
cvts.t.fp[3*x+1] = colval(cvts.r.colors[x],CIEY); |
778 |
> |
cvts.t.fp[3*x+2] = colval(cvts.r.colors[x],CIEZ); |
779 |
> |
} |
780 |
> |
|
781 |
> |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
782 |
> |
quiterr("error writing TIFF output"); |
783 |
> |
} |
784 |
> |
|
785 |
> |
|
786 |
> |
int |
787 |
> |
Colr2Gry(y) /* read/convert/write COLR->RGB scanline */ |
788 |
> |
uint32 y; |
789 |
> |
{ |
790 |
> |
register int x; |
791 |
> |
|
792 |
> |
if (CHK(C_RFLT|C_TWRD|C_TFLT|C_GRY) != C_GRY) |
793 |
> |
quiterr("internal error 1 in Colr2Gry"); |
794 |
> |
|
795 |
> |
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
796 |
> |
quiterr("error reading Radiance picture"); |
797 |
> |
|
798 |
> |
if (cvts.bradj) |
799 |
> |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
800 |
> |
for (x = cvts.xmax; x--; ) |
801 |
> |
colval(cvts.r.colrs[x],CIEY) = normbright(cvts.r.colrs[x]); |
802 |
> |
colrs_gambs(cvts.r.colrs, cvts.xmax); |
803 |
> |
|
804 |
> |
for (x = cvts.xmax; x--; ) |
805 |
> |
cvts.t.bp[x] = colval(cvts.r.colrs[x],CIEY); |
806 |
> |
|
807 |
> |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
808 |
> |
quiterr("error writing TIFF output"); |
809 |
> |
} |
810 |
> |
|
811 |
> |
|
812 |
> |
int |
813 |
> |
Colr2RGB(y) /* read/convert/write COLR->RGB scanline */ |
814 |
> |
uint32 y; |
815 |
> |
{ |
816 |
> |
COLOR ctmp; |
817 |
> |
register int x; |
818 |
> |
|
819 |
> |
if (CHK(C_RFLT|C_TFLT|C_TWRD|C_GRY)) |
820 |
> |
quiterr("internal error 1 in Colr2RGB"); |
821 |
> |
|
822 |
> |
if (freadcolrs(cvts.r.colrs, cvts.xmax, cvts.rfp) < 0) |
823 |
> |
quiterr("error reading Radiance picture"); |
824 |
> |
|
825 |
> |
if (cvts.bradj) |
826 |
> |
shiftcolrs(cvts.r.colrs, cvts.xmax, cvts.bradj); |
827 |
> |
if (CHK(C_CXFM)) |
828 |
> |
for (x = cvts.xmax; x--; ) { |
829 |
> |
colr_color(ctmp, cvts.r.colrs[x]); |
830 |
> |
colortrans(ctmp, cvts.cmat, ctmp); |
831 |
> |
if (CHK(C_GAMUT)) |
832 |
> |
clipgamut(ctmp, bright(ctmp), CGAMUT, |
833 |
> |
cblack, cwhite); |
834 |
> |
setcolr(cvts.r.colrs[x], colval(ctmp,RED), |
835 |
> |
colval(ctmp,GRN), colval(ctmp,BLU)); |
836 |
|
} |
837 |
< |
if (TIFFWriteScanline(tif, scanout, y, 0) < 0) |
838 |
< |
quiterr("error writing TIFF output"); |
837 |
> |
colrs_gambs(cvts.r.colrs, cvts.xmax); |
838 |
> |
|
839 |
> |
for (x = cvts.xmax; x--; ) { |
840 |
> |
cvts.t.bp[3*x] = cvts.r.colrs[x][RED]; |
841 |
> |
cvts.t.bp[3*x+1] = cvts.r.colrs[x][GRN]; |
842 |
> |
cvts.t.bp[3*x+2] = cvts.r.colrs[x][BLU]; |
843 |
|
} |
844 |
< |
/* clean up */ |
845 |
< |
free((char *)scanin); |
846 |
< |
free((char *)scanout); |
220 |
< |
TIFFClose(tif); |
844 |
> |
|
845 |
> |
if (TIFFWriteScanline(cvts.tif, cvts.t.p, y, 0) < 0) |
846 |
> |
quiterr("error writing TIFF output"); |
847 |
|
} |