6 |
|
* Added white-balance adjustment 10/01 (GW). |
7 |
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*/ |
8 |
|
|
9 |
– |
#include <stdio.h> |
10 |
– |
#include <string.h> |
9 |
|
#include <math.h> |
12 |
– |
#include <time.h> |
10 |
|
|
11 |
|
#include "platform.h" |
12 |
|
#include "color.h" |
13 |
|
#include "resolu.h" |
14 |
+ |
#include "rtio.h" |
15 |
|
|
16 |
< |
int rgbinp = -1; /* input is RGBE? */ |
17 |
< |
|
16 |
> |
enum {InpUNK, InpRGB, InpXYZ, InpSPEC}; /* input format */ |
17 |
> |
int infmt = InpUNK; |
18 |
|
int rgbout = 0; /* output should be RGBE? */ |
21 |
– |
|
19 |
|
RGBPRIMS inprims = STDPRIMS; /* input primaries */ |
23 |
– |
|
20 |
|
RGBPRIMS outprims = STDPRIMS; /* output primaries */ |
25 |
– |
|
21 |
|
double expcomp = 1.0; /* exposure compensation */ |
27 |
– |
|
22 |
|
int doflat = -1; /* produce flat file? */ |
23 |
< |
|
23 |
> |
double origexp = -1.0; /* original exposure */ |
24 |
|
char *progname; |
25 |
|
|
26 |
|
static gethfunc headline; |
27 |
+ |
static void quiterr(char *err); |
28 |
+ |
static void myreadscan(COLOR *scn, int len); |
29 |
+ |
static void convert(void); |
30 |
|
|
31 |
|
|
32 |
+ |
|
33 |
|
static int |
34 |
|
headline( /* process header line */ |
35 |
|
char *s, |
36 |
|
void *p |
37 |
|
) |
38 |
|
{ |
39 |
< |
char fmt[32]; |
39 |
> |
char fmt[MAXFMTLEN]; |
40 |
|
|
41 |
|
if (formatval(fmt, s)) { /* check if format string */ |
42 |
|
if (!strcmp(fmt,COLRFMT)) |
43 |
< |
rgbinp = 1; |
43 |
> |
infmt = InpRGB; |
44 |
|
else if (!strcmp(fmt,CIEFMT)) |
45 |
< |
rgbinp = 0; |
45 |
> |
infmt = InpXYZ; |
46 |
> |
else if (!strcmp(fmt,SPECFMT)) |
47 |
> |
infmt = InpSPEC; |
48 |
|
else |
49 |
< |
rgbinp = -2; |
49 |
> |
infmt = InpUNK; |
50 |
|
return(0); /* don't echo */ |
51 |
|
} |
52 |
+ |
if (origexp > 0.0 && isexpos(s)) { |
53 |
+ |
origexp *= exposval(s); |
54 |
+ |
return(0); /* don't echo */ |
55 |
+ |
} |
56 |
|
if (isprims(s)) { /* get input primaries */ |
57 |
|
primsval(inprims, s); |
58 |
|
return(0); /* don't echo */ |
59 |
|
} |
60 |
+ |
if (iswlsplit(s)) { /* get wavelength limits */ |
61 |
+ |
wlsplitval(WLPART, s); |
62 |
+ |
return(0); /* don't echo */ |
63 |
+ |
} |
64 |
+ |
if (isncomp(s)) { /* number of color samples */ |
65 |
+ |
NCSAMP = ncompval(s); |
66 |
+ |
return(0); /* don't echo */ |
67 |
+ |
} |
68 |
|
/* should I grok colcorr also? */ |
69 |
|
return(fputs(s, stdout)); |
70 |
|
} |
71 |
|
|
72 |
|
|
73 |
< |
main(argc, argv) |
74 |
< |
int argc; |
63 |
< |
char *argv[]; |
73 |
> |
int |
74 |
> |
main(int argc, char *argv[]) |
75 |
|
{ |
76 |
|
int i; |
77 |
|
SET_DEFAULT_BINARY(); |
103 |
|
outprims[WHT][CIEX] = atof(argv[++i]); |
104 |
|
outprims[WHT][CIEY] = atof(argv[++i]); |
105 |
|
break; |
106 |
+ |
case 'o': /* original exposure */ |
107 |
+ |
origexp = 1.0; |
108 |
+ |
break; |
109 |
|
case 'e': /* exposure compensation */ |
110 |
|
expcomp = atof(argv[++i]); |
111 |
|
if (argv[i][0] == '+' || argv[i][0] == '-') |
132 |
|
exit(1); |
133 |
|
} |
134 |
|
getheader(stdin, headline, NULL); |
135 |
< |
if (rgbinp == -2) |
136 |
< |
quiterr("unrecognized input file format"); |
137 |
< |
if (rgbinp == -1) |
138 |
< |
rgbinp = !rgbout; |
135 |
> |
if (infmt == InpUNK) |
136 |
> |
quiterr("unrecognized/missing input file format"); |
137 |
> |
if (infmt == InpSPEC ? (NCSAMP <= 3) | (NCSAMP > MAXCSAMP) : |
138 |
> |
NCSAMP != 3) |
139 |
> |
quiterr("bad number of color components"); |
140 |
|
printargs(argc, argv, stdout); /* add to header */ |
141 |
|
convert(); /* convert picture */ |
142 |
|
exit(0); |
143 |
|
userr: |
144 |
< |
fprintf(stderr, "Usage: %s [-r][-e exp][-c|-u]", progname); |
144 |
> |
fprintf(stderr, "Usage: %s [-r][-o][-e exp][-c|-u]", progname); |
145 |
|
fprintf(stderr, "[-p rx ry gx gy bx by wx wy] [input [output]]\n"); |
146 |
|
exit(1); |
147 |
|
} |
148 |
|
|
149 |
|
|
150 |
< |
quiterr(err) /* print message and exit */ |
151 |
< |
char *err; |
150 |
> |
static void |
151 |
> |
quiterr( /* print message and exit */ |
152 |
> |
char *err |
153 |
> |
) |
154 |
|
{ |
155 |
|
if (err != NULL) { |
156 |
|
fprintf(stderr, "%s: %s\n", progname, err); |
160 |
|
} |
161 |
|
|
162 |
|
|
163 |
< |
convert() /* convert to XYZE or RGBE picture */ |
163 |
> |
static void |
164 |
> |
myreadscan(COLOR *scn, int len) |
165 |
|
{ |
166 |
+ |
if (infmt == InpSPEC) { /* read & convert to XYZ */ |
167 |
+ |
static COLOR *scomp = NULL; |
168 |
+ |
SCOLR sclr; |
169 |
+ |
SCOLOR scol; |
170 |
+ |
COLOR xyz; |
171 |
+ |
int n; |
172 |
+ |
if (scomp == NULL) { /* initialize conversion */ |
173 |
+ |
scomp = (COLOR *)malloc(sizeof(COLOR)*NCSAMP); |
174 |
+ |
if (scomp == NULL) |
175 |
+ |
quiterr("out of memory in myreadscan"); |
176 |
+ |
for (n = NCSAMP; n--; ) |
177 |
+ |
spec_cie(scomp[n], |
178 |
+ |
WLPART[0] + (WLPART[3] - WLPART[0])*(n+1)/NCSAMP, |
179 |
+ |
WLPART[0] + (WLPART[3] - WLPART[0])*n/NCSAMP); |
180 |
+ |
} |
181 |
+ |
while (len-- > 0) { |
182 |
+ |
if (getbinary(sclr, LSCOLR, 1, stdin) != 1) |
183 |
+ |
goto readerr; |
184 |
+ |
scolr_scolor(scol, sclr); |
185 |
+ |
setcolor(*scn, 0, 0, 0); |
186 |
+ |
for (n = NCSAMP; n--; ) { |
187 |
+ |
copycolor(xyz, scomp[n]); |
188 |
+ |
scalecolor(xyz, scol[n]); |
189 |
+ |
addcolor(*scn, xyz); |
190 |
+ |
} |
191 |
+ |
scn++; |
192 |
+ |
} |
193 |
+ |
return; |
194 |
+ |
} /* else read as RGBE/XYZE */ |
195 |
+ |
if (freadscan(scn, len, stdin) >= 0) |
196 |
+ |
return; |
197 |
+ |
readerr: |
198 |
+ |
quiterr("error reading input picture"); |
199 |
+ |
} |
200 |
+ |
|
201 |
+ |
|
202 |
+ |
static void |
203 |
+ |
convert(void) /* convert to XYZE or RGBE picture */ |
204 |
+ |
{ |
205 |
|
int order; |
206 |
|
int xmax, ymax; |
207 |
|
COLORMAT xfm; |
208 |
< |
register COLOR *scanin; |
209 |
< |
register COLR *scanout; |
210 |
< |
double ourexp = expcomp; |
208 |
> |
COLOR *scanin; |
209 |
> |
COLR *scanout; |
210 |
> |
double exp2do = expcomp; |
211 |
> |
double exp2report = expcomp; |
212 |
|
int y; |
213 |
< |
register int x; |
213 |
> |
int x; |
214 |
> |
/* recover original? */ |
215 |
> |
if (origexp > 0.0) |
216 |
> |
exp2do /= origexp; |
217 |
|
/* compute transform */ |
218 |
|
if (rgbout) { |
219 |
< |
if (rgbinp) { /* RGBE -> RGBE */ |
219 |
> |
if (infmt == InpRGB) { /* RGBE -> RGBE */ |
220 |
|
comprgb2rgbWBmat(xfm, inprims, outprims); |
221 |
< |
} else { /* XYZE -> RGBE */ |
221 |
> |
} else { /* XYZE/Spectral -> RGBE */ |
222 |
|
compxyz2rgbWBmat(xfm, outprims); |
162 |
– |
ourexp *= WHTEFFICACY; |
223 |
|
} |
224 |
+ |
if (infmt == InpXYZ) { |
225 |
+ |
if (origexp > 0.0) |
226 |
+ |
exp2do /= WHTEFFICACY; |
227 |
+ |
else |
228 |
+ |
exp2report *= WHTEFFICACY; |
229 |
+ |
} |
230 |
|
} else { |
231 |
< |
if (rgbinp) { /* RGBE -> XYZE */ |
231 |
> |
if (infmt == InpRGB) { /* RGBE -> XYZE */ |
232 |
|
comprgb2xyzWBmat(xfm, inprims); |
233 |
< |
ourexp /= WHTEFFICACY; |
234 |
< |
} else { /* XYZE -> XYZE */ |
235 |
< |
for (y = 0; y < 3; y++) |
236 |
< |
for (x = 0; x < 3; x++) |
171 |
< |
xfm[y][x] = x==y ? 1. : 0.; |
233 |
> |
} else { /* XYZE/Spectral -> XYZE */ |
234 |
> |
memset(xfm, 0, sizeof(xfm)); |
235 |
> |
for (x = 3; x--; ) |
236 |
> |
xfm[x][x] = 1.; |
237 |
|
} |
238 |
+ |
if (infmt != InpXYZ) { |
239 |
+ |
if (origexp > 0) |
240 |
+ |
exp2do *= WHTEFFICACY; |
241 |
+ |
else |
242 |
+ |
exp2report /= WHTEFFICACY; |
243 |
+ |
} |
244 |
|
} |
245 |
|
for (y = 0; y < 3; y++) |
246 |
|
for (x = 0; x < 3; x++) |
247 |
< |
xfm[y][x] *= expcomp; |
247 |
> |
xfm[y][x] *= exp2do; |
248 |
|
/* get input resolution */ |
249 |
|
if ((order = fgetresolu(&xmax, &ymax, stdin)) < 0) |
250 |
|
quiterr("bad picture format"); |
251 |
|
/* complete output header */ |
252 |
< |
if (ourexp < 0.99 || ourexp > 1.01) |
253 |
< |
fputexpos(ourexp, stdout); |
252 |
> |
if ((exp2report < 0.99) | (exp2report > 1.01)) |
253 |
> |
fputexpos(exp2report, stdout); |
254 |
|
if (rgbout) { |
255 |
|
fputprims(outprims, stdout); |
256 |
|
fputformat(COLRFMT, stdout); |
262 |
|
scanin = (COLOR *)malloc(xmax*sizeof(COLOR)); |
263 |
|
if (scanin == NULL) |
264 |
|
quiterr("out of memory in convert"); |
265 |
< |
scanout = doflat ? (COLR *)malloc(xmax*sizeof(COLR)) : NULL; |
265 |
> |
scanout = doflat ? (COLR *)malloc(xmax*sizeof(COLR)) : (COLR *)NULL; |
266 |
|
/* convert image */ |
267 |
|
for (y = 0; y < ymax; y++) { |
268 |
< |
if (freadscan(scanin, xmax, stdin) < 0) |
198 |
< |
quiterr("error reading input picture"); |
268 |
> |
myreadscan(scanin, xmax); |
269 |
|
for (x = 0; x < xmax; x++) { |
270 |
|
colortrans(scanin[x], xfm, scanin[x]); |
271 |
|
if (rgbout) |
277 |
|
setcolr(scanout[x], colval(scanin[x],RED), |
278 |
|
colval(scanin[x],GRN), |
279 |
|
colval(scanin[x],BLU)); |
280 |
< |
fwrite((char *)scanout, sizeof(COLR), xmax, stdout); |
280 |
> |
putbinary(scanout, sizeof(COLR), xmax, stdout); |
281 |
|
} else |
282 |
|
fwritescan(scanin, xmax, stdout); |
283 |
|
if (ferror(stdout)) |
284 |
|
quiterr("error writing output picture"); |
285 |
|
} |
286 |
|
/* free scanline */ |
287 |
< |
free((void *)scanin); |
287 |
> |
free(scanin); |
288 |
|
if (scanout != NULL) |
289 |
< |
free((void *)scanout); |
289 |
> |
free(scanout); |
290 |
|
} |