static int
headline( /* process header line */
char *s,
void *p
)
{
static RGBPRIMS inprimS;
char fmt[32];
if (formatval(fmt, s)) { /* check if format string */
if (!strcmp(fmt,COLRFMT)) lumf = rgblum;
else if (!strcmp(fmt,CIEFMT)) lumf = cielum;
else lumf = NULL;
return(0); /* don't echo */
}
if (isprims(s)) { /* get input primaries */
primsval(inprimS, s);
inprims= inprimS;
return(0); /* don't echo */
}
if (isexpos(s)) { /* picture exposure */
inpexp *= exposval(s);
return(0); /* don't echo */
}
if (isaspect(s)) /* pixel aspect ratio */
pixaspect *= aspectval(s);
if (isview(s)) /* image view */
gotview += sscanview(&ourview, s);
return(fputs(s, stdout));
}
static int
headline( /* check header line */
char *s,
void *p
)
{
char fmt[32];
if (isformat(s)) {
formatval(fmt, s);
wrongformat = strcmp(fmt, COLRFMT);
} else if (isaspect(s))
pixaspect *= aspectval(s);
return(0);
}
static int
headline( /* process line from header */
char *s,
void *pp
)
{
register char *cp;
for (cp = s; *cp; cp++)
if (*cp & 0x80)
return(-1); /* non-ascii in header */
if (isaspect(s))
((PICTURE *)pp)->pa *= aspectval(s);
else
formatval(((PICTURE *)pp)->fmt, s);
return(0);
}
static int
headline( /* check header line & echo if requested */
char *s,
void *p
)
{
char fmt[32];
double d;
COLOR ctmp;
if (isheadid(s)) /* header id */
return(0); /* don't echo */
if (formatval(fmt, s)) { /* check format */
if (globmatch(ourfmt, fmt)) {
wrongformat = 0;
strcpy(ourfmt, fmt);
} else
wrongformat = globmatch(PICFMT, fmt) ? 1 : -1;
return(0); /* don't echo */
}
if (isexpos(s)) { /* exposure */
d = exposval(s);
scalecolor(input[nfiles].expos, d);
} else if (iscolcor(s)) { /* color correction */
colcorval(ctmp, s);
multcolor(input[nfiles].expos, ctmp);
} else if (isaspect(s))
input[nfiles].pa *= aspectval(s);
else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0)
gotview++;
if (echoheader) { /* echo line */
putchar('\t');
return(fputs(s, stdout));
}
return(0);
}