--- ray/src/px/ra_ps.c 1997/09/18 15:16:23 2.17 +++ ray/src/px/ra_ps.c 1999/07/19 09:53:06 2.23 @@ -10,20 +10,27 @@ static char SCCSid[] = "$SunId$ SGI"; #include #include +#include #ifdef MSDOS #include #endif #include "color.h" +#define UPPER(c) ((c)&~0x20) /* ASCII trick */ + #define CODE6GAM 1.47 /* gamma for 6-bit codes */ -#define DEFDGAM 1.0 /* default device gamma */ +#define DEFGGAM 1.0 /* greyscale device gamma */ +#define DEFCGAM 1.8 /* color device gamma */ #define GRY -1 /* artificial index for grey */ -#define HMARGIN (.5*72) /* horizontal margin */ -#define VMARGIN (.5*72) /* vertical margin */ -#define PWIDTH (8.5*72-2*HMARGIN) /* width of device */ -#define PHEIGHT (11*72-2*VMARGIN) /* height of device */ +#define DEFMARG 0.5 /* default margin (inches) */ +#define DEFWIDTH 8.5 /* default page width */ +#define DEFHEIGHT 11 /* default page height */ +#define HMARGIN (hmarg*72) /* horizontal margin */ +#define VMARGIN (vmarg*72) /* vertical margin */ +#define PWIDTH (width*72-2*HMARGIN) /* width of device */ +#define PHEIGHT (height*72-2*VMARGIN) /* height of device */ #define RUNCHR '*' /* character to start rle */ #define MINRUN 4 /* minimum run-length */ @@ -36,8 +43,13 @@ char code[] = /* 6-bit code lookup table */ int wrongformat = 0; /* input in wrong format? */ double pixaspect = 1.0; /* pixel aspect ratio */ -double devgam = DEFDGAM; /* device gamma response */ -int docolor = 0; /* produce color image? */ +double devgam = 0.; /* device gamma response */ +double hmarg = DEFMARG, + vmarg = DEFMARG; /* horizontal and vertical margins */ +double width = DEFWIDTH, + height = DEFHEIGHT; /* default paper width and height */ +double dpi = 0; /* print density (0 if unknown) */ +int docolor = 1; /* produce color image? */ int bradj = 0; /* brightness adjustment */ int ncopies = 1; /* number of copies */ @@ -47,11 +59,13 @@ int (*putprim)() = Aputprim; /* function for writing char *progname; -int xmax, ymax; +int xmax, ymax; /* input image dimensions */ extern char *malloc(); +extern double unit2inch(); +int headline(s) /* check header line */ char *s; { @@ -62,6 +76,7 @@ char *s; wrongformat = strcmp(fmt, COLRFMT); } else if (isaspect(s)) pixaspect *= aspectval(s); + return(0); } @@ -70,6 +85,7 @@ int argc; char *argv[]; { int i; + double d; progname = argv[0]; @@ -91,9 +107,33 @@ char *argv[]; case 'C': /* compressed ASCII encoding */ putprim = Cputprim; break; - case 'g': + case 'd': /* print density */ + dpi = atof(argv[++i]); + break; + case 'g': /* device gamma adjustment */ devgam = atof(argv[++i]); break; + case 'p': /* paper size */ + parsepaper(argv[++i]); + break; + case 'm': /* margin */ + d = atof(argv[i+1]); + d *= unit2inch(argv[i+1]); + switch (argv[i][2]) { + case '\0': + hmarg = vmarg = d; + break; + case 'h': + hmarg = d; + break; + case 'v': + vmarg = d; + break; + default: + goto userr; + } + i++; + break; case 'e': /* exposure adjustment */ if (argv[i+1][0] != '+' && argv[i+1][0] != '-') goto userr; @@ -128,24 +168,121 @@ char *argv[]; if (wrongformat || fgetresolu(&xmax, &ymax, stdin) < 0) quiterr("bad picture format"); /* gamma compression */ + if (devgam <= 0.05) + devgam = docolor ? DEFCGAM : DEFGGAM; if (putprim == Cputprim) - setcolrgam(CODE6GAM/devgam); + setcolrgam(CODE6GAM); else if (devgam != 1.) - setcolrgam(1./devgam); + setcolrgam(devgam); /* write header */ - PSheader(i <= argc-1 ? argv[i] : ""); + PSheader(argc, argv); /* convert file */ ra2ps(); /* write trailer */ PStrailer(); exit(0); userr: - fprintf(stderr, "Usage: %s [-b|c][-A|B|C][-e +/-stops][-g gamma] [input [output]]\n", + fprintf(stderr, +"Usage: %s [-b|c][-A|B|C][-e +/-stops][-p paper][-m[h|v] margin][-d dpi][-g gamma] [input [output]]\n", progname); exit(1); } +double +unit2inch(s) /* determine unit */ +register char *s; +{ + static struct unit {char n; float f;} u[] = { + 'i', 1., + 'm', 1./25.4, + 'c', 1./2.54, + '\0' }; + register struct unit *up; + + while (*s && !isalpha(*s)) + s++; + for (up = u; up->n; up++) + if (up->n == *s) + return(up->f); + return(1.); +} + + +int +matchid(name, id) /* see if name matches id (case insensitive) */ +char *name; +register char *id; +{ + register char *s = name; + + while (*s) { + if (isalpha(*s)) { + if (!isalpha(*id) || UPPER(*s) != UPPER(*id)) + return(0); + } else if (*s != *id) + return(0); + s++; id++; + } + return(!*id || s-name >= 3); /* substrings >= 3 chars OK */ +} + + +parsepaper(ps) /* determine paper size from name */ +char *ps; +{ + static struct psize {char n[12]; float w,h;} p[] = { + "envelope", 4.12, 9.5, + "executive", 7.25, 10.5, + "letter", 8.5, 11., + "lettersmall", 7.68, 10.16, + "legal", 8.5, 14., + "monarch", 3.87, 7.5, + "statement", 5.5, 8.5, + "tabloid", 11., 17., + "A3", 11.69, 16.54, + "A4", 8.27, 11.69, + "A4small", 7.47, 10.85, + "A5", 6.00, 8.27, + "A6", 4.13, 6.00, + "B4", 10.12, 14.33, + "B5", 7.17, 10.12, + "C5", 6.38, 9.01, + "C6", 4.49, 6.38, + "DL", 4.33, 8.66, + "hagaki", 3.94, 5.83, + "" }; + register struct psize *pp; + register char *s = ps; + double d; + + if (isdigit(*s)) { /* check for WWxHH specification */ + width = atof(s); + while (*s && !isalpha(*s)) + s++; + d = unit2inch(s); + height = atof(++s); + width *= d; + height *= d; + if (width >= 1. & height >= 1.) + return; + } else /* check for match to standard size */ + for (pp = p; pp->n[0]; pp++) + if (matchid(s, pp->n)) { + width = pp->w; + height = pp->h; + return; + } + fprintf(stderr, "%s: unknown paper size \"%s\" -- known sizes:\n", + progname, ps); + fprintf(stderr, "_Name________Width_Height_(inches)\n"); + for (pp = p; pp->n[0]; pp++) + fprintf(stderr, "%-11s %5.2f %5.2f\n", pp->n, pp->w, pp->h); + fprintf(stderr, "Or use WWxHH size specification\n"); + exit(1); +} + + quiterr(err) /* print message and exit */ char *err; { @@ -157,37 +294,49 @@ char *err; } -PSheader(name) /* print PostScript header */ -char *name; +PSheader(ac, av) /* print PostScript header */ +int ac; +char **av; { char *rstr; - int landscape = 0; + int landscape, rotate, n; double pwidth, pheight; double iwidth, iheight; /* EPS comments */ puts("%!PS-Adobe-2.0 EPSF-2.0"); - printf("%%%%Title: %s\n", name); - printf("%%%%Creator: %s = %s\n", progname, SCCSid); + printf("%%%%Title: "); printargs(ac, av, stdout); + printf("%%%%Creator: %s\n", SCCSid); printf("%%%%Pages: %d\n", ncopies); if (landscape = xmax > pixaspect*ymax) puts("%%Orientation: Landscape"); else puts("%%Orientation: Portrait"); - if (PWIDTH > PHEIGHT ^ landscape) { + if (rotate = PWIDTH > PHEIGHT ^ landscape) { pwidth = PHEIGHT; pheight = PWIDTH; } else { pwidth = PWIDTH; pheight = PHEIGHT; } - if (pheight/pwidth > pixaspect*ymax/xmax) { - iwidth = pwidth; - iheight = pwidth*pixaspect*ymax/xmax; - } else { - iheight = pheight; - iwidth = pheight*xmax/(pixaspect*ymax); - } - if (pwidth == PHEIGHT) + if (dpi > 100 && pixaspect >= 0.99 & pixaspect <= 1.01) + if (pheight/pwidth > ymax/xmax) { + n = pwidth*dpi/xmax; /* floor */ + iwidth = n > 0 ? (double)(n*xmax)/dpi : pwidth; + iheight = iwidth*ymax/xmax; + } else { + n = pheight*dpi/ymax; /* floor */ + iheight = n > 0 ? (double)(n*ymax)/dpi : pheight; + iwidth = iheight*xmax/ymax; + } + else + if (pheight/pwidth > pixaspect*ymax/xmax) { + iwidth = pwidth; + iheight = iwidth*pixaspect*ymax/xmax; + } else { + iheight = pheight; + iwidth = iheight*xmax/(pixaspect*ymax); + } + if (rotate) printf("%%%%BoundingBox: %.0f %.0f %.0f %.0f\n", HMARGIN+(pheight-iheight)*.5, VMARGIN+(pwidth-iwidth)*.5, @@ -214,7 +363,7 @@ char *name; PSprocdef("read6bitRLE"); /* set up transformation matrix */ printf("%f %f translate\n", HMARGIN, VMARGIN); - if (pwidth == PHEIGHT) { + if (rotate) { printf("%f 0 translate\n", PWIDTH); puts("90 rotate"); } @@ -265,7 +414,7 @@ char *nam; for (i = 0; i < 128; i++) /* clear */ itab[i] = -1; for (i = 1; i < 63; i++) /* assign greys */ - itab[code[i]] = 256.0*pow((i+.5)/64.0, CODE6GAM); + itab[code[i]] = 256.0*pow((i+.5)/64.0, CODE6GAM/devgam); itab[code[0]] = 0; /* black is black */ itab[code[63]] = 255; /* and white is white */ printf("/codetab [");