| 29 |
|
FILE *fp; /* stream pointer */ |
| 30 |
|
COLOR *scan[WINSIZ]; /* input scanline window */ |
| 31 |
|
COLOR coef; /* coefficient */ |
| 32 |
+ |
COLOR expos; /* recorded exposure */ |
| 33 |
|
} input[MAXINP]; /* input pictures */ |
| 34 |
|
|
| 35 |
|
int nfiles; /* number of input files */ |
| 38 |
|
char *vcolout[3] = {"ro", "go", "bo"}; |
| 39 |
|
char vbrtin[] = "li"; |
| 40 |
|
char vbrtout[] = "lo"; |
| 41 |
< |
char *vcolcoef[3] = {"rc", "gc", "bc"}; |
| 42 |
< |
char vbrtcoef[] = "lc"; |
| 41 |
> |
char *vcolexp[3] = {"re", "ge", "be"}; |
| 42 |
> |
char vbrtexp[] = "le"; |
| 43 |
|
|
| 44 |
|
#define vnfiles "nfiles" |
| 45 |
|
#define vxres "xres" |
| 77 |
|
case 'w': |
| 78 |
|
nowarn = !nowarn; |
| 79 |
|
continue; |
| 79 |
– |
case 'o': |
| 80 |
– |
original = !original; |
| 81 |
– |
continue; |
| 80 |
|
case 'f': |
| 81 |
|
case 'e': |
| 82 |
|
a++; |
| 85 |
|
break; |
| 86 |
|
} |
| 87 |
|
/* process files */ |
| 88 |
< |
for (nfiles = 0; nfiles < MAXINP; nfiles++) |
| 88 |
> |
for (nfiles = 0; nfiles < MAXINP; nfiles++) { |
| 89 |
|
setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
| 90 |
+ |
setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
| 91 |
+ |
} |
| 92 |
|
nfiles = 0; |
| 93 |
|
for ( ; a < argc; a++) { |
| 94 |
|
if (nfiles >= MAXINP) { |
| 102 |
|
input[nfiles].name = "<stdin>"; |
| 103 |
|
input[nfiles].fp = stdin; |
| 104 |
|
break; |
| 105 |
+ |
case 'o': |
| 106 |
+ |
original++; |
| 107 |
+ |
break; |
| 108 |
|
case 's': |
| 109 |
|
f = atof(argv[++a]); |
| 110 |
|
scalecolor(input[nfiles].coef, f); |
| 126 |
|
} |
| 127 |
|
} |
| 128 |
|
checkfile(); |
| 129 |
+ |
original = 0; |
| 130 |
|
nfiles++; |
| 131 |
|
} |
| 132 |
|
init(); /* set constant expressions */ |
| 139 |
|
a++; |
| 140 |
|
continue; |
| 141 |
|
case 'w': |
| 138 |
– |
case 'o': |
| 142 |
|
continue; |
| 143 |
|
case 'f': |
| 144 |
|
fcompile(argv[++a]); |
| 176 |
|
if (isformat(s)) { /* check format */ |
| 177 |
|
formatval(fmt, s); |
| 178 |
|
wrongformat = strcmp(fmt, COLRFMT); |
| 179 |
< |
} else if (original && isexpos(s)) { /* exposure */ |
| 180 |
< |
d = 1.0/exposval(s); |
| 181 |
< |
scalecolor(input[nfiles].coef, d); |
| 182 |
< |
} else if (original && iscolcor(s)) { /* color correction */ |
| 179 |
> |
return; /* don't echo */ |
| 180 |
> |
} |
| 181 |
> |
if (isexpos(s)) { /* exposure */ |
| 182 |
> |
d = exposval(s); |
| 183 |
> |
scalecolor(input[nfiles].expos, d); |
| 184 |
> |
if (original) |
| 185 |
> |
scalecolor(input[nfiles].coef, 1.0/d); |
| 186 |
> |
} else if (iscolcor(s)) { /* color correction */ |
| 187 |
|
colcorval(ctmp, s); |
| 188 |
< |
colval(input[nfiles].coef,RED) /= colval(ctmp,RED); |
| 189 |
< |
colval(input[nfiles].coef,GRN) /= colval(ctmp,GRN); |
| 190 |
< |
colval(input[nfiles].coef,BLU) /= colval(ctmp,BLU); |
| 191 |
< |
} else { /* echo unaffected line */ |
| 192 |
< |
putchar('\t'); |
| 193 |
< |
fputs(s, stdout); |
| 188 |
> |
multcolor(input[nfiles].expos, ctmp); |
| 189 |
> |
if (original) { |
| 190 |
> |
colval(input[nfiles].coef,RED) /= colval(ctmp,RED); |
| 191 |
> |
colval(input[nfiles].coef,GRN) /= colval(ctmp,GRN); |
| 192 |
> |
colval(input[nfiles].coef,BLU) /= colval(ctmp,BLU); |
| 193 |
> |
} |
| 194 |
|
} |
| 195 |
+ |
/* echo line */ |
| 196 |
+ |
putchar('\t'); |
| 197 |
+ |
fputs(s, stdout); |
| 198 |
|
} |
| 199 |
|
|
| 200 |
|
|
| 231 |
|
|
| 232 |
|
init() /* perform final setup */ |
| 233 |
|
{ |
| 234 |
< |
double l_colin(), l_coef(); |
| 234 |
> |
double l_colin(), l_expos(); |
| 235 |
|
register int i; |
| 236 |
|
/* prime input */ |
| 237 |
|
for (ypos = yres+(MIDSCN-1); ypos >= yres; ypos--) |
| 242 |
|
varset(vyres, ':', (double)yres); |
| 243 |
|
/* set functions */ |
| 244 |
|
for (i = 0; i < 3; i++) { |
| 245 |
< |
funset(vcolcoef[i], 1, ':', l_coef); |
| 245 |
> |
funset(vcolexp[i], 1, ':', l_expos); |
| 246 |
|
funset(vcolin[i], 1, '=', l_colin); |
| 247 |
|
} |
| 248 |
< |
funset(vbrtcoef, 1, ':', l_coef); |
| 248 |
> |
funset(vbrtexp, 1, ':', l_expos); |
| 249 |
|
funset(vbrtin, 1, '=', l_colin); |
| 250 |
|
} |
| 251 |
|
|
| 329 |
|
|
| 330 |
|
|
| 331 |
|
double |
| 332 |
< |
l_coef(nam) /* return picture coefficients */ |
| 332 |
> |
l_expos(nam) /* return picture exposure */ |
| 333 |
|
register char *nam; |
| 334 |
|
{ |
| 335 |
|
register int fn, n; |
| 343 |
|
errno = EDOM; |
| 344 |
|
return(0.0); |
| 345 |
|
} |
| 346 |
< |
if (nam == vbrtcoef) |
| 347 |
< |
return(bright(input[fn].coef)); |
| 346 |
> |
if (nam == vbrtexp) |
| 347 |
> |
return(bright(input[fn].expos)); |
| 348 |
|
n = 3; |
| 349 |
|
while (n--) |
| 350 |
< |
if (nam == vcolcoef[n]) |
| 351 |
< |
return(colval(input[fn].coef,n)); |
| 352 |
< |
eputs("Bad call to l_coef()!\n"); |
| 350 |
> |
if (nam == vcolexp[n]) |
| 351 |
> |
return(colval(input[fn].expos,n)); |
| 352 |
> |
eputs("Bad call to l_expos()!\n"); |
| 353 |
|
quit(1); |
| 354 |
|
} |
| 355 |
|
|