| 21 |
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#include "view.h" |
| 22 |
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|
| 23 |
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#define MAXINP 32 /* maximum number of input files */ |
| 24 |
< |
#define WINSIZ 9 /* scanline window size */ |
| 25 |
< |
#define MIDSCN 4 /* current scan position */ |
| 24 |
> |
#define WINSIZ 17 /* scanline window size */ |
| 25 |
> |
#define MIDSCN ((WINSIZ-1)/2+1) |
| 26 |
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|
| 27 |
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struct { |
| 28 |
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char *name; /* file or command name */ |
| 29 |
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FILE *fp; /* stream pointer */ |
| 30 |
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VIEW vw; /* view for picture */ |
| 31 |
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RESOLU rs; /* image resolution and orientation */ |
| 32 |
+ |
float pa; /* pixel aspect ratio */ |
| 33 |
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COLOR *scan[WINSIZ]; /* input scanline window */ |
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COLOR coef; /* coefficient */ |
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COLOR expos; /* recorded exposure */ |
| 37 |
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|
| 38 |
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int nfiles; /* number of input files */ |
| 39 |
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|
| 40 |
+ |
char ourfmt[LPICFMT+1] = PICFMT; /* input picture format */ |
| 41 |
+ |
|
| 42 |
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char Command[] = "<Command>"; |
| 43 |
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char vcolin[3][4] = {"ri", "gi", "bi"}; |
| 44 |
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char vcolout[3][4] = {"ro", "go", "bo"}; |
| 49 |
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|
| 50 |
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char vray[6][4] = {"Ox", "Oy", "Oz", "Dx", "Dy", "Dz"}; |
| 51 |
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|
| 52 |
+ |
char vpsize[] = "S"; |
| 53 |
+ |
|
| 54 |
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char vnfiles[] = "nfiles"; |
| 55 |
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char vxmax[] = "xmax"; |
| 56 |
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char vymax[] = "ymax"; |
| 111 |
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} |
| 112 |
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break; |
| 113 |
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} |
| 114 |
+ |
newheader("RADIANCE", stdout); /* start header */ |
| 115 |
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/* process files */ |
| 116 |
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for (nfiles = 0; nfiles < MAXINP; nfiles++) { |
| 117 |
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setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
| 118 |
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setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
| 119 |
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copystruct(&input[nfiles].vw, &stdview); |
| 120 |
+ |
input[nfiles].pa = 1.0; |
| 121 |
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} |
| 122 |
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nfiles = 0; |
| 123 |
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original = 0; |
| 209 |
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} |
| 210 |
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/* complete header */ |
| 211 |
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printargs(argc, argv, stdout); |
| 212 |
< |
fputformat(COLRFMT, stdout); |
| 212 |
> |
if (strcmp(ourfmt, PICFMT)) |
| 213 |
> |
fputformat(ourfmt, stdout); /* print format if known */ |
| 214 |
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putchar('\n'); |
| 215 |
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fprtresolu(xres, yres, stdout); |
| 216 |
|
/* combine pictures */ |
| 232 |
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double d; |
| 233 |
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COLOR ctmp; |
| 234 |
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|
| 235 |
< |
if (isformat(s)) { /* check format */ |
| 228 |
< |
formatval(fmt, s); |
| 229 |
< |
wrongformat = strcmp(fmt, COLRFMT); |
| 235 |
> |
if (isheadid(s)) /* header id */ |
| 236 |
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return; /* don't echo */ |
| 237 |
+ |
if (formatval(fmt, s)) { /* check format */ |
| 238 |
+ |
if (globmatch(ourfmt, fmt)) { |
| 239 |
+ |
wrongformat = 0; |
| 240 |
+ |
strcpy(ourfmt, fmt); |
| 241 |
+ |
} else |
| 242 |
+ |
wrongformat = 1; |
| 243 |
+ |
return; /* don't echo */ |
| 244 |
|
} |
| 245 |
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if (isexpos(s)) { /* exposure */ |
| 246 |
|
d = exposval(s); |
| 248 |
|
} else if (iscolcor(s)) { /* color correction */ |
| 249 |
|
colcorval(ctmp, s); |
| 250 |
|
multcolor(input[nfiles].expos, ctmp); |
| 251 |
+ |
} else if (isaspect(s)) { |
| 252 |
+ |
input[nfiles].pa *= aspectval(s); |
| 253 |
|
} else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0) |
| 254 |
|
gotview++; |
| 255 |
|
/* echo line */ |
| 293 |
|
} |
| 294 |
|
|
| 295 |
|
|
| 296 |
+ |
double |
| 297 |
+ |
rgb_bright(clr) |
| 298 |
+ |
COLOR clr; |
| 299 |
+ |
{ |
| 300 |
+ |
return(bright(clr)); |
| 301 |
+ |
} |
| 302 |
+ |
|
| 303 |
+ |
|
| 304 |
+ |
double |
| 305 |
+ |
xyz_bright(clr) |
| 306 |
+ |
COLOR clr; |
| 307 |
+ |
{ |
| 308 |
+ |
return(clr[CIEY]); |
| 309 |
+ |
} |
| 310 |
+ |
|
| 311 |
+ |
|
| 312 |
+ |
double (*ourbright)() = rgb_bright; |
| 313 |
+ |
|
| 314 |
+ |
|
| 315 |
|
init() /* perform final setup */ |
| 316 |
|
{ |
| 317 |
< |
double l_colin(), l_expos(), l_ray(); |
| 317 |
> |
double l_colin(), l_expos(), l_ray(), l_psize(); |
| 318 |
|
register int i; |
| 319 |
|
/* define constants */ |
| 320 |
|
varset(vnfiles, ':', (double)nfiles); |
| 329 |
|
funset(vbrtin, 1, '=', l_colin); |
| 330 |
|
for (i = 0; i < 6; i++) |
| 331 |
|
funset(vray[i], 1, '=', l_ray); |
| 332 |
+ |
funset(vpsize, 1, '=', l_psize); |
| 333 |
+ |
/* set brightness function */ |
| 334 |
+ |
if (!strcmp(ourfmt, CIEFMT)) |
| 335 |
+ |
ourbright = xyz_bright; |
| 336 |
|
} |
| 337 |
|
|
| 338 |
|
|
| 432 |
|
if (fn < 0 || fn >= nfiles) |
| 433 |
|
return(1.0); |
| 434 |
|
if (nam == vbrtexp) |
| 435 |
< |
return(bright(input[fn].expos)); |
| 435 |
> |
return((*ourbright)(input[fn].expos)); |
| 436 |
|
n = 3; |
| 437 |
|
while (n--) |
| 438 |
|
if (nam == vcolexp[n]) |
| 489 |
|
} |
| 490 |
|
} |
| 491 |
|
if (nam == vbrtin) |
| 492 |
< |
return(bright(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
| 492 |
> |
return((*ourbright)(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
| 493 |
|
n = 3; |
| 494 |
|
while (n--) |
| 495 |
|
if (nam == vcolin[n]) |
| 503 |
|
l_ray(nam) /* return ray origin or direction */ |
| 504 |
|
register char *nam; |
| 505 |
|
{ |
| 506 |
< |
static long ltick[MAXINP]; |
| 506 |
> |
static unsigned long ltick[MAXINP]; |
| 507 |
|
static FVECT lorg[MAXINP], ldir[MAXINP]; |
| 508 |
|
FLOAT loc[2]; |
| 509 |
|
double d; |
| 522 |
|
lorg[fn][0] = lorg[fn][1] = lorg[fn][2] = 0.0; |
| 523 |
|
ldir[fn][0] = ldir[fn][1] = ldir[fn][2] = 0.0; |
| 524 |
|
if (input[fn].vw.type == 0) |
| 525 |
< |
errno = ERANGE; |
| 525 |
> |
errno = EDOM; |
| 526 |
|
else { |
| 527 |
< |
pix2loc(loc, &input[fn].rs, xpos, ypos); |
| 527 |
> |
pix2loc(loc, &input[fn].rs, xscan, ymax-1-yscan); |
| 528 |
|
if (viewray(lorg[fn], ldir[fn], |
| 529 |
|
&input[fn].vw, loc[0], loc[1]) < 0) |
| 530 |
|
errno = ERANGE; |
| 531 |
+ |
ltick[fn] = eclock; |
| 532 |
|
} |
| 494 |
– |
ltick[fn] = eclock; |
| 533 |
|
} |
| 534 |
|
i = 6; |
| 535 |
|
while (i--) |
| 537 |
|
return(i < 3 ? lorg[fn][i] : ldir[fn][i-3]); |
| 538 |
|
eputs("Bad call to l_ray()!\n"); |
| 539 |
|
quit(1); |
| 540 |
+ |
} |
| 541 |
+ |
|
| 542 |
+ |
|
| 543 |
+ |
double |
| 544 |
+ |
l_psize() /* compute pixel size in steradians */ |
| 545 |
+ |
{ |
| 546 |
+ |
static unsigned long ltick[MAXINP]; |
| 547 |
+ |
static double psize[MAXINP]; |
| 548 |
+ |
FVECT dir0, org1, dir1; |
| 549 |
+ |
FLOAT loc[2]; |
| 550 |
+ |
double d; |
| 551 |
+ |
int fn; |
| 552 |
+ |
|
| 553 |
+ |
d = argument(1); |
| 554 |
+ |
if (d > -.5 && d < .5) |
| 555 |
+ |
return((double)nfiles); |
| 556 |
+ |
fn = d - .5; |
| 557 |
+ |
if (fn < 0 || fn >= nfiles) { |
| 558 |
+ |
errno = EDOM; |
| 559 |
+ |
return(0.0); |
| 560 |
+ |
} |
| 561 |
+ |
if (ltick[fn] < eclock) /* need to compute? */ |
| 562 |
+ |
if (input[fn].vw.type == 0 || input[fn].vw.type == VT_PAR) |
| 563 |
+ |
errno = EDOM; |
| 564 |
+ |
else { |
| 565 |
+ |
errno = 0; |
| 566 |
+ |
dir0[0] = funvalue(vray[3], 1, &d); |
| 567 |
+ |
if (errno) |
| 568 |
+ |
return(0.0); |
| 569 |
+ |
dir0[1] = funvalue(vray[4], 1, &d); |
| 570 |
+ |
if (errno) |
| 571 |
+ |
return(0.0); |
| 572 |
+ |
dir0[2] = funvalue(vray[5], 1, &d); |
| 573 |
+ |
if (errno) |
| 574 |
+ |
return(0.0); |
| 575 |
+ |
pix2loc(loc, &input[fn].rs, xscan+1, ymax-yscan); |
| 576 |
+ |
psize[fn] = 0.0; |
| 577 |
+ |
if (viewray(org1, dir1, |
| 578 |
+ |
&input[fn].vw, loc[0], loc[1]) < 0) |
| 579 |
+ |
errno = ERANGE; |
| 580 |
+ |
else { |
| 581 |
+ |
/* approximate solid angle */ |
| 582 |
+ |
psize[fn] = dist2(dir0, dir1) * input[fn].pa / |
| 583 |
+ |
(1.0 + input[fn].pa*input[fn].pa); |
| 584 |
+ |
ltick[fn] = eclock; |
| 585 |
+ |
} |
| 586 |
+ |
} |
| 587 |
+ |
return(psize[fn]); |
| 588 |
|
} |
| 589 |
|
|
| 590 |
|
|