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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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int docolor = 0; /* produce color image? */ |
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double dpi = 0; /* print density (0 if unknown) */ |
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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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char *progname; |
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int xmax, ymax; |
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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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case 'C': /* compressed ASCII encoding */ |
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putprim = Cputprim; |
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break; |
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case 'd': /* print density */ |
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dpi = atof(argv[++i]); |
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break; |
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case 'g': /* device gamma adjustment */ |
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devgam = atof(argv[++i]); |
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break; |
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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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exit(0); |
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userr: |
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fprintf(stderr, |
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"Usage: %s [-b|c][-A|B|C][-e +/-stops][-p paper][-m[h|v] margin][-g gamma] [input [output]]\n", |
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"Usage: %s [-b|c][-A|B|C][-e +/-stops][-p paper][-m[h|v] margin][-d dpi][-g gamma] [input [output]]\n", |
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progname); |
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exit(1); |
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} |
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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 = 0; |
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int landscape, rotate, n; |
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double pwidth, pheight; |
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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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else |
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puts("%%Orientation: Portrait"); |
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if (PWIDTH > PHEIGHT ^ landscape) { |
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if (rotate = PWIDTH > PHEIGHT ^ landscape) { |
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pwidth = PHEIGHT; |
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pheight = PWIDTH; |
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} else { |
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pwidth = PWIDTH; |
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pheight = PHEIGHT; |
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} |
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if (pheight/pwidth > pixaspect*ymax/xmax) { |
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iwidth = pwidth; |
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iheight = pwidth*pixaspect*ymax/xmax; |
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} else { |
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iheight = pheight; |
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iwidth = pheight*xmax/(pixaspect*ymax); |
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} |
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if (pwidth == PHEIGHT) |
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if (dpi > 100 && pixaspect >= 0.99 & pixaspect <= 1.01) |
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if (pheight/pwidth > ymax/xmax) { |
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n = pwidth*dpi/xmax; /* floor */ |
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iwidth = n > 0 ? (double)(n*xmax)/dpi : pwidth; |
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iheight = iwidth*ymax/xmax; |
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} else { |
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n = pheight*dpi/ymax; /* floor */ |
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iheight = n > 0 ? (double)(n*ymax)/dpi : pheight; |
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iwidth = iheight*xmax/ymax; |
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} |
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else |
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if (pheight/pwidth > pixaspect*ymax/xmax) { |
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iwidth = pwidth; |
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iheight = iwidth*pixaspect*ymax/xmax; |
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} else { |
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iheight = pheight; |
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iwidth = iheight*xmax/(pixaspect*ymax); |
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} |
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if (rotate) |
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printf("%%%%BoundingBox: %.0f %.0f %.0f %.0f\n", |
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HMARGIN+(pheight-iheight)*.5, |
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VMARGIN+(pwidth-iwidth)*.5, |
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PSprocdef("read6bitRLE"); |
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/* set up transformation matrix */ |
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printf("%f %f translate\n", HMARGIN, VMARGIN); |
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if (pwidth == PHEIGHT) { |
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if (rotate) { |
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printf("%f 0 translate\n", PWIDTH); |
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puts("90 rotate"); |
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} |
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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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