| 298 |
|
fprintf(fp, "SOFTWARE= %s\n", VersionID); |
| 299 |
|
fputs(VIEWSTR, fp); |
| 300 |
|
fprintview(&ourview, fp); |
| 301 |
< |
putc('\n', fp); |
| 301 |
> |
fputc('\n', fp); |
| 302 |
|
fputnow(fp); |
| 303 |
|
if (pixaspect < .99 || pixaspect > 1.01) |
| 304 |
|
fputaspect(pixaspect, fp); |
| 305 |
|
fputformat(COLRFMT, fp); |
| 306 |
< |
putc('\n', fp); |
| 306 |
> |
fputc('\n', fp); |
| 307 |
|
fprtresolu(hres*hmult, vres*vmult, fp); |
| 308 |
|
} else if ((outfd = open(outfile, O_RDWR)) >= 0) { |
| 309 |
|
dolock(outfd, F_RDLCK); |
| 461 |
|
static void |
| 462 |
|
rpiece(void) /* render picture piece by piece */ |
| 463 |
|
{ |
| 464 |
+ |
char *err; |
| 465 |
|
VIEW pview; |
| 466 |
|
int xorg, yorg; |
| 466 |
– |
/* compute view parameters */ |
| 467 |
– |
pview = ourview; |
| 468 |
– |
switch (ourview.type) { |
| 469 |
– |
case VT_PER: |
| 470 |
– |
pview.horiz = (2.*180./PI)*atan( |
| 471 |
– |
tan((PI/180./2.)*ourview.horiz)/hmult ); |
| 472 |
– |
pview.vert = (2.*180./PI)*atan( |
| 473 |
– |
tan((PI/180./2.)*ourview.vert)/vmult ); |
| 474 |
– |
break; |
| 475 |
– |
case VT_PAR: |
| 476 |
– |
case VT_ANG: |
| 477 |
– |
pview.horiz = ourview.horiz / hmult; |
| 478 |
– |
pview.vert = ourview.vert / vmult; |
| 479 |
– |
break; |
| 480 |
– |
case VT_CYL: |
| 481 |
– |
pview.horiz = ourview.horiz / hmult; |
| 482 |
– |
pview.vert = (2.*180./PI)*atan( |
| 483 |
– |
tan((PI/180./2.)*ourview.vert)/vmult ); |
| 484 |
– |
break; |
| 485 |
– |
case VT_HEM: |
| 486 |
– |
pview.horiz = (2.*180./PI)*asin( |
| 487 |
– |
sin((PI/180./2.)*ourview.horiz)/hmult ); |
| 488 |
– |
pview.vert = (2.*180./PI)*asin( |
| 489 |
– |
sin((PI/180./2.)*ourview.vert)/vmult ); |
| 490 |
– |
break; |
| 491 |
– |
case VT_PLS: |
| 492 |
– |
pview.horiz = sin((PI/180./2.)*ourview.horiz) / |
| 493 |
– |
(1.0 + cos((PI/180./2.)*ourview.horiz)) / hmult; |
| 494 |
– |
pview.horiz *= pview.horiz; |
| 495 |
– |
pview.horiz = (2.*180./PI)*acos((1. - pview.horiz) / |
| 496 |
– |
(1. + pview.horiz)); |
| 497 |
– |
pview.vert = sin((PI/180./2.)*ourview.vert) / |
| 498 |
– |
(1.0 + cos((PI/180./2.)*ourview.vert)) / vmult; |
| 499 |
– |
pview.vert *= pview.vert; |
| 500 |
– |
pview.vert = (2.*180./PI)*acos((1. - pview.vert) / |
| 501 |
– |
(1. + pview.vert)); |
| 502 |
– |
break; |
| 503 |
– |
default: |
| 504 |
– |
fprintf(stderr, "%s: unknown view type '-vt%c'\n", |
| 505 |
– |
progname, ourview.type); |
| 506 |
– |
exit(cleanup(1)); |
| 507 |
– |
} |
| 467 |
|
/* render each piece */ |
| 468 |
|
while (nextpiece(&xorg, &yorg)) { |
| 469 |
< |
pview.hoff = ourview.hoff*hmult + xorg - 0.5*(hmult-1); |
| 470 |
< |
pview.voff = ourview.voff*vmult + yorg - 0.5*(vmult-1); |
| 469 |
> |
pview = ourview; |
| 470 |
> |
err = cropview(&pview, (double)xorg/hmult, (double)yorg/vmult, |
| 471 |
> |
(xorg+1.)/hmult, (yorg+1.)/vmult); |
| 472 |
> |
if (err != NULL) { |
| 473 |
> |
fprintf(stderr, "%s: %s\n", progname, err); |
| 474 |
> |
exit(cleanup(1)); |
| 475 |
> |
} |
| 476 |
|
fputs(VIEWSTR, torp); |
| 477 |
|
fprintview(&pview, torp); |
| 478 |
< |
putc('\n', torp); |
| 478 |
> |
fputc('\n', torp); |
| 479 |
|
fflush(torp); /* assigns piece to rpict */ |
| 480 |
|
putpiece(xorg, yorg); /* place piece in output */ |
| 481 |
|
} |
