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/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Radiance picture to PostScript file translator -- one way! |
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*/ |
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#define UPPER(c) ((c)&~0x20) /* ASCII trick */ |
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#define CODE6GAM 1.47 /* gamma for 6-bit codes */ |
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#define DEFDGAM 1.0 /* default device gamma */ |
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#define DEFGGAM 1.0 /* greyscale device gamma */ |
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#define DEFCGAM 1.8 /* color device gamma */ |
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#define GRY -1 /* artificial index for grey */ |
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int wrongformat = 0; /* input in wrong format? */ |
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double pixaspect = 1.0; /* pixel aspect ratio */ |
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double devgam = DEFDGAM; /* device gamma response */ |
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double devgam = 0.; /* device gamma response */ |
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double hmarg = DEFMARG, |
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vmarg = DEFMARG; /* horizontal and vertical margins */ |
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double width = DEFWIDTH, |
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height = DEFHEIGHT; /* default paper width and height */ |
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double dpi = 0; /* print density (0 if unknown) */ |
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int docolor = 0; /* produce color image? */ |
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int docolor = 1; /* produce color image? */ |
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int bradj = 0; /* brightness adjustment */ |
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int ncopies = 1; /* number of copies */ |
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int xmax, ymax; /* input image dimensions */ |
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extern char *malloc(); |
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extern double unit2inch(); |
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int |
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headline(s) /* check header line */ |
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char *s; |
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{ |
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wrongformat = strcmp(fmt, COLRFMT); |
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} else if (isaspect(s)) |
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pixaspect *= aspectval(s); |
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return(0); |
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} |
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if (wrongformat || fgetresolu(&xmax, &ymax, stdin) < 0) |
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quiterr("bad picture format"); |
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/* gamma compression */ |
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if (devgam <= 0.05) |
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devgam = docolor ? DEFCGAM : DEFGGAM; |
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if (putprim == Cputprim) |
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setcolrgam(CODE6GAM); |
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else if (devgam != 1.) |
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setcolrgam(devgam); |
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/* write header */ |
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PSheader(i <= argc-1 ? argv[i] : "<stdin>"); |
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PSheader(argc, argv); |
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/* convert file */ |
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ra2ps(); |
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/* write trailer */ |
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unit2inch(s) /* determine unit */ |
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register char *s; |
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{ |
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static struct unit {char n; float f} u[] = { |
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static struct unit {char n; float f;} u[] = { |
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'i', 1., |
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'm', 1./25.4, |
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'c', 1./2.54, |
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} |
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PSheader(name) /* print PostScript header */ |
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char *name; |
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PSheader(ac, av) /* print PostScript header */ |
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int ac; |
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char **av; |
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{ |
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char *rstr; |
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int landscape, rotate, n; |
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double iwidth, iheight; |
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/* EPS comments */ |
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puts("%!PS-Adobe-2.0 EPSF-2.0"); |
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printf("%%%%Title: %s\n", name); |
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printf("%%%%Creator: %s = %s\n", progname, SCCSid); |
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printf("%%%%Title: "); printargs(ac, av, stdout); |
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printf("%%%%Creator: %s\n", progname); |
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printf("%%%%Pages: %d\n", ncopies); |
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if (landscape = xmax > pixaspect*ymax) |
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puts("%%Orientation: Landscape"); |
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} |
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putchar('\n'); |
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/* free scanline */ |
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free((char *)scanin); |
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free((void *)scanin); |
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} |
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