| 19 |
|
#define UPPER(c) ((c)&~0x20) /* ASCII trick */ |
| 20 |
|
|
| 21 |
|
#define CODE6GAM 1.47 /* gamma for 6-bit codes */ |
| 22 |
< |
#define DEFDGAM 1.0 /* default device gamma */ |
| 22 |
> |
#define DEFGGAM 1.0 /* greyscale device gamma */ |
| 23 |
> |
#define DEFCGAM 1.8 /* color device gamma */ |
| 24 |
|
|
| 25 |
|
#define GRY -1 /* artificial index for grey */ |
| 26 |
|
|
| 43 |
|
int wrongformat = 0; /* input in wrong format? */ |
| 44 |
|
double pixaspect = 1.0; /* pixel aspect ratio */ |
| 45 |
|
|
| 46 |
< |
double devgam = DEFDGAM; /* device gamma response */ |
| 46 |
> |
double devgam = 0.; /* device gamma response */ |
| 47 |
|
double hmarg = DEFMARG, |
| 48 |
|
vmarg = DEFMARG; /* horizontal and vertical margins */ |
| 49 |
|
double width = DEFWIDTH, |
| 50 |
|
height = DEFHEIGHT; /* default paper width and height */ |
| 51 |
< |
int docolor = 0; /* produce color image? */ |
| 51 |
> |
double dpi = 0; /* print density (0 if unknown) */ |
| 52 |
> |
int docolor = 1; /* produce color image? */ |
| 53 |
|
int bradj = 0; /* brightness adjustment */ |
| 54 |
|
int ncopies = 1; /* number of copies */ |
| 55 |
|
|
| 59 |
|
|
| 60 |
|
char *progname; |
| 61 |
|
|
| 62 |
< |
int xmax, ymax; |
| 62 |
> |
int xmax, ymax; /* input image dimensions */ |
| 63 |
|
|
| 64 |
|
extern char *malloc(); |
| 65 |
|
extern double unit2inch(); |
| 105 |
|
case 'C': /* compressed ASCII encoding */ |
| 106 |
|
putprim = Cputprim; |
| 107 |
|
break; |
| 108 |
+ |
case 'd': /* print density */ |
| 109 |
+ |
dpi = atof(argv[++i]); |
| 110 |
+ |
break; |
| 111 |
|
case 'g': /* device gamma adjustment */ |
| 112 |
|
devgam = atof(argv[++i]); |
| 113 |
|
break; |
| 166 |
|
if (wrongformat || fgetresolu(&xmax, &ymax, stdin) < 0) |
| 167 |
|
quiterr("bad picture format"); |
| 168 |
|
/* gamma compression */ |
| 169 |
+ |
if (devgam <= 0.05) |
| 170 |
+ |
devgam = docolor ? DEFCGAM : DEFGGAM; |
| 171 |
|
if (putprim == Cputprim) |
| 172 |
|
setcolrgam(CODE6GAM); |
| 173 |
|
else if (devgam != 1.) |
| 174 |
|
setcolrgam(devgam); |
| 175 |
|
/* write header */ |
| 176 |
< |
PSheader(i <= argc-1 ? argv[i] : "<stdin>"); |
| 176 |
> |
PSheader(argc, argv); |
| 177 |
|
/* convert file */ |
| 178 |
|
ra2ps(); |
| 179 |
|
/* write trailer */ |
| 181 |
|
exit(0); |
| 182 |
|
userr: |
| 183 |
|
fprintf(stderr, |
| 184 |
< |
"Usage: %s [-b|c][-A|B|C][-e +/-stops][-p paper][-m[h|v] margin][-g gamma] [input [output]]\n", |
| 184 |
> |
"Usage: %s [-b|c][-A|B|C][-e +/-stops][-p paper][-m[h|v] margin][-d dpi][-g gamma] [input [output]]\n", |
| 185 |
|
progname); |
| 186 |
|
exit(1); |
| 187 |
|
} |
| 292 |
|
} |
| 293 |
|
|
| 294 |
|
|
| 295 |
< |
PSheader(name) /* print PostScript header */ |
| 296 |
< |
char *name; |
| 295 |
> |
PSheader(ac, av) /* print PostScript header */ |
| 296 |
> |
int ac; |
| 297 |
> |
char **av; |
| 298 |
|
{ |
| 299 |
|
char *rstr; |
| 300 |
< |
int landscape = 0; |
| 300 |
> |
int landscape, rotate, n; |
| 301 |
|
double pwidth, pheight; |
| 302 |
|
double iwidth, iheight; |
| 303 |
|
/* EPS comments */ |
| 304 |
|
puts("%!PS-Adobe-2.0 EPSF-2.0"); |
| 305 |
< |
printf("%%%%Title: %s\n", name); |
| 306 |
< |
printf("%%%%Creator: %s = %s\n", progname, SCCSid); |
| 305 |
> |
printf("%%%%Title: "); printargs(ac, av, stdout); |
| 306 |
> |
printf("%%%%Creator: %s\n", SCCSid); |
| 307 |
|
printf("%%%%Pages: %d\n", ncopies); |
| 308 |
|
if (landscape = xmax > pixaspect*ymax) |
| 309 |
|
puts("%%Orientation: Landscape"); |
| 310 |
|
else |
| 311 |
|
puts("%%Orientation: Portrait"); |
| 312 |
< |
if (PWIDTH > PHEIGHT ^ landscape) { |
| 312 |
> |
if (rotate = PWIDTH > PHEIGHT ^ landscape) { |
| 313 |
|
pwidth = PHEIGHT; |
| 314 |
|
pheight = PWIDTH; |
| 315 |
|
} else { |
| 316 |
|
pwidth = PWIDTH; |
| 317 |
|
pheight = PHEIGHT; |
| 318 |
|
} |
| 319 |
< |
if (pheight/pwidth > pixaspect*ymax/xmax) { |
| 320 |
< |
iwidth = pwidth; |
| 321 |
< |
iheight = pwidth*pixaspect*ymax/xmax; |
| 322 |
< |
} else { |
| 323 |
< |
iheight = pheight; |
| 324 |
< |
iwidth = pheight*xmax/(pixaspect*ymax); |
| 325 |
< |
} |
| 326 |
< |
if (pwidth == PHEIGHT) |
| 319 |
> |
if (dpi > 100 && pixaspect >= 0.99 & pixaspect <= 1.01) |
| 320 |
> |
if (pheight/pwidth > ymax/xmax) { |
| 321 |
> |
n = pwidth*dpi/xmax; /* floor */ |
| 322 |
> |
iwidth = n > 0 ? (double)(n*xmax)/dpi : pwidth; |
| 323 |
> |
iheight = iwidth*ymax/xmax; |
| 324 |
> |
} else { |
| 325 |
> |
n = pheight*dpi/ymax; /* floor */ |
| 326 |
> |
iheight = n > 0 ? (double)(n*ymax)/dpi : pheight; |
| 327 |
> |
iwidth = iheight*xmax/ymax; |
| 328 |
> |
} |
| 329 |
> |
else |
| 330 |
> |
if (pheight/pwidth > pixaspect*ymax/xmax) { |
| 331 |
> |
iwidth = pwidth; |
| 332 |
> |
iheight = iwidth*pixaspect*ymax/xmax; |
| 333 |
> |
} else { |
| 334 |
> |
iheight = pheight; |
| 335 |
> |
iwidth = iheight*xmax/(pixaspect*ymax); |
| 336 |
> |
} |
| 337 |
> |
if (rotate) |
| 338 |
|
printf("%%%%BoundingBox: %.0f %.0f %.0f %.0f\n", |
| 339 |
|
HMARGIN+(pheight-iheight)*.5, |
| 340 |
|
VMARGIN+(pwidth-iwidth)*.5, |
| 361 |
|
PSprocdef("read6bitRLE"); |
| 362 |
|
/* set up transformation matrix */ |
| 363 |
|
printf("%f %f translate\n", HMARGIN, VMARGIN); |
| 364 |
< |
if (pwidth == PHEIGHT) { |
| 364 |
> |
if (rotate) { |
| 365 |
|
printf("%f 0 translate\n", PWIDTH); |
| 366 |
|
puts("90 rotate"); |
| 367 |
|
} |
