static int checkhead( /* deal with line from header */ char *line, void *p ) { char fmt[32]; double d; COLOR ctmp; if (formatval(fmt, line)) { if (!strcmp(fmt, CIEFMT)) mybright = &xyz_bright; else if (!strcmp(fmt, COLRFMT)) mybright = &rgb_bright; else wrongformat++; } else if (original && isexpos(line)) { d = 1.0/exposval(line); scalecolor(exposure, d); doexposure++; } else if (original && iscolcor(line)) { colcorval(ctmp, line); setcolor(exposure, colval(exposure,RED)/colval(ctmp,RED), colval(exposure,GRN)/colval(ctmp,GRN), colval(exposure,BLU)/colval(ctmp,BLU)); doexposure++; } else if (header) fputs(line, stdout); return(0); }
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 picheadline( /* process picture header line */ char *s, void *vph ) { char fmt[32]; struct phead *ph = vph; if (formatval(fmt, s)) { ph->badfmt = strcmp(fmt, COLRFMT); return(0); } if (isprims(s)) { ph->altprims++; /* don't want to deal with this */ return(0); } if (isexpos(s)) { ph->expos *= exposval(s); return(0); } if (isview(s)) { ph->gotview += sscanview(&ph->vw, s); return(0); } 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); }