| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: d48c.c,v 1.4 2003/10/27 10:24:51 schorsch Exp $"; |
| 3 |
#endif |
| 4 |
/* |
| 5 |
* d48c.c - driver for dicomed D48 film recorder w/ color optics. |
| 6 |
* |
| 7 |
* 3/26/87 |
| 8 |
*/ |
| 9 |
|
| 10 |
#include <stdio.h> |
| 11 |
#include <string.h> |
| 12 |
#include <signal.h> |
| 13 |
|
| 14 |
#include "paths.h" |
| 15 |
#include "rterror.h" |
| 16 |
#include "color.h" |
| 17 |
|
| 18 |
|
| 19 |
#define HSIZE 4096 /* device width */ |
| 20 |
#define VSIZE 4096 /* device height */ |
| 21 |
|
| 22 |
#define MAXMULT 15 /* maximum element size */ |
| 23 |
|
| 24 |
/* dicomed commands */ |
| 25 |
#define O_ECS 0 /* encoded command select */ |
| 26 |
#define O_CONF 03400 /* configuration code */ |
| 27 |
#define O_FES 020000 /* function element select */ |
| 28 |
#define O_VPA 040000 /* vector or position absolute */ |
| 29 |
#define O_ICS 0100000 /* initial condition select */ |
| 30 |
#define O_PES 0120000 /* point element select */ |
| 31 |
|
| 32 |
/* ECS commands */ |
| 33 |
#define ECS_FA 07 /* film advance */ |
| 34 |
#define ECS_RED 011 /* select red filter */ |
| 35 |
#define ECS_GRN 012 /* select green filter */ |
| 36 |
#define ECS_BLU 014 /* select blue filter */ |
| 37 |
#define ECS_NEU 017 /* select neutral filter */ |
| 38 |
#define ECS_RAS 020 /* select raster mode */ |
| 39 |
#define ECS_COL 022 /* select color mode */ |
| 40 |
#define ECS_BW 023 /* select black and white mode */ |
| 41 |
#define ECS_BT 024 /* bypass translation tables */ |
| 42 |
|
| 43 |
/* FES functions */ |
| 44 |
#define FES_RE 030000 /* raster element */ |
| 45 |
#define FES_RL 0170000 /* run length */ |
| 46 |
|
| 47 |
/* ICS fields */ |
| 48 |
#define ICS_HVINT 040 /* interchange h and v axes */ |
| 49 |
#define ICS_VREV 0100 /* reverse v axis direction */ |
| 50 |
#define ICS_HREV 0200 /* reverse h axis direction */ |
| 51 |
|
| 52 |
int nrows; /* number of rows for output */ |
| 53 |
int ncols; /* number of columns for output */ |
| 54 |
|
| 55 |
int mult; /* number of h/v points per elem. */ |
| 56 |
|
| 57 |
int hhome; /* offset for h */ |
| 58 |
int vhome; /* offset for v */ |
| 59 |
|
| 60 |
/* dicomed configurations */ |
| 61 |
#define C_POLAROID 0 /* polaroid print */ |
| 62 |
#define C_35FRES 1 /* 35mm full resolution */ |
| 63 |
#define C_35FFRA 2 /* 35mm full frame */ |
| 64 |
#define C_SHEET 3 /* 4X5 sheet film */ |
| 65 |
|
| 66 |
#define NCONF 4 /* number of configurations */ |
| 67 |
|
| 68 |
struct config { |
| 69 |
char *name; /* configuration name */ |
| 70 |
int ccode; /* configuration code */ |
| 71 |
int icsfield; /* initial condition select */ |
| 72 |
int hbeg, vbeg; /* coord. origin */ |
| 73 |
int hsiz, vsiz; /* dimensions */ |
| 74 |
} ctab[NCONF] = { |
| 75 |
{ "polaroid", 11, ICS_HVINT|ICS_VREV, 0, 0, 4096, 4096 }, |
| 76 |
{ "35r", 5, 0, 0, 0, 4096, 4096 }, |
| 77 |
{ "35f", 7, 0, 39, 692, 4018, 2712 }, |
| 78 |
{ "sheet", 10, ICS_HVINT|ICS_VREV, 0, 0, 4096, 4096 }, |
| 79 |
}; |
| 80 |
|
| 81 |
#define NEU 3 /* neutral color */ |
| 82 |
|
| 83 |
struct filter { |
| 84 |
float cv[3]; /* filter color vector */ |
| 85 |
char *fn; /* file name for this color */ |
| 86 |
FILE *fp; /* stream for this color */ |
| 87 |
} ftab[4] = { |
| 88 |
{ {1.0, 0.0, 0.0}, NULL, NULL }, /* red */ |
| 89 |
{ {0.0, 1.0, 0.0}, NULL, NULL }, /* green */ |
| 90 |
{ {0.0, 0.0, 1.0}, NULL, NULL }, /* blue */ |
| 91 |
{ {0.3, 0.59, 0.11}, NULL, NULL }, /* neutral */ |
| 92 |
}; |
| 93 |
|
| 94 |
#define f_val(col,f) ( colval(col,0)*ftab[f].cv[0] + \ |
| 95 |
colval(col,1)*ftab[f].cv[1] + \ |
| 96 |
colval(col,2)*ftab[f].cv[2] ) |
| 97 |
|
| 98 |
float neumap[] = { /* neutral map, log w/ E6 */ |
| 99 |
.0, .0, |
| 100 |
.0004, .059, |
| 101 |
.0008, .122, |
| 102 |
.0018, .184, |
| 103 |
.0033, .247, |
| 104 |
.0061, .310, |
| 105 |
.0119, .373, |
| 106 |
.0202, .435, |
| 107 |
.0373, .498, |
| 108 |
.065, .561, |
| 109 |
.113, .624, |
| 110 |
.199, .686, |
| 111 |
.300, .749, |
| 112 |
.432, .812, |
| 113 |
.596, .875, |
| 114 |
.767, .937, |
| 115 |
1.000, 1.000, |
| 116 |
}; |
| 117 |
|
| 118 |
|
| 119 |
int docolor = 1; /* color? */ |
| 120 |
|
| 121 |
int cftype = C_35FFRA; /* configuration type */ |
| 122 |
|
| 123 |
char *progname; /* program name */ |
| 124 |
|
| 125 |
static void settype(char *cname); |
| 126 |
static void dofile(char *fname); |
| 127 |
static void d_init(void); |
| 128 |
static void scanout(COLOR *scan, int y); |
| 129 |
static void d_done(void); |
| 130 |
static void runlength(COLOR *scan, int f); |
| 131 |
static double mapfilter(COLOR col, int f); |
| 132 |
static void transfer(FILE *fin, FILE *fout); |
| 133 |
|
| 134 |
|
| 135 |
int |
| 136 |
main( |
| 137 |
int argc, |
| 138 |
char *argv[] |
| 139 |
) |
| 140 |
{ |
| 141 |
int i; |
| 142 |
|
| 143 |
if (signal(SIGINT, quit) == SIG_IGN) |
| 144 |
signal(SIGINT, SIG_IGN); |
| 145 |
#ifdef SIGHUP |
| 146 |
if (signal(SIGHUP, quit) == SIG_IGN) |
| 147 |
signal(SIGINT, SIG_IGN); |
| 148 |
#endif |
| 149 |
signal(SIGTERM, quit); |
| 150 |
#ifdef SIGPIPE |
| 151 |
signal(SIGPIPE, quit); |
| 152 |
#endif |
| 153 |
#ifdef SIGXCPU |
| 154 |
signal(SIGXCPU, quit); |
| 155 |
#endif |
| 156 |
#ifdef SIGXFSZ |
| 157 |
signal(SIGXFSZ, quit); |
| 158 |
#endif |
| 159 |
|
| 160 |
progname = argv[0]; |
| 161 |
|
| 162 |
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
| 163 |
switch (argv[i][1]) { |
| 164 |
case 'c': /* color */ |
| 165 |
docolor = 1; |
| 166 |
break; |
| 167 |
case 'b': /* black and white */ |
| 168 |
docolor = 0; |
| 169 |
break; |
| 170 |
case 't': /* type */ |
| 171 |
settype(argv[++i]); |
| 172 |
break; |
| 173 |
default: |
| 174 |
fprintf(stderr, "%s: Unknown option: %s\n", |
| 175 |
progname, argv[i]); |
| 176 |
quit(1); |
| 177 |
break; |
| 178 |
} |
| 179 |
|
| 180 |
if (i < argc) |
| 181 |
for ( ; i < argc; i++) |
| 182 |
dofile(argv[i]); |
| 183 |
else |
| 184 |
dofile(NULL); |
| 185 |
|
| 186 |
quit(0); |
| 187 |
return 0; /* pro forma return */ |
| 188 |
} |
| 189 |
|
| 190 |
|
| 191 |
static void |
| 192 |
settype( /* set configuration type */ |
| 193 |
char *cname |
| 194 |
) |
| 195 |
{ |
| 196 |
for (cftype = 0; cftype < NCONF; cftype++) |
| 197 |
if (!strcmp(cname, ctab[cftype].name)) |
| 198 |
return; |
| 199 |
|
| 200 |
fprintf(stderr, "%s: Unknown type: %s\n", progname, cname); |
| 201 |
quit(1); |
| 202 |
} |
| 203 |
|
| 204 |
|
| 205 |
void |
| 206 |
quit(int code) /* quit program */ |
| 207 |
{ |
| 208 |
int i; |
| 209 |
|
| 210 |
for (i = 0; i < 4; i++) |
| 211 |
if (ftab[i].fn != NULL) |
| 212 |
unlink(ftab[i].fn); |
| 213 |
exit(code); |
| 214 |
} |
| 215 |
|
| 216 |
|
| 217 |
static void |
| 218 |
dofile( /* convert file to dicomed format */ |
| 219 |
char *fname |
| 220 |
) |
| 221 |
{ |
| 222 |
FILE *fin; |
| 223 |
char sbuf[128]; |
| 224 |
COLOR scanline[HSIZE]; |
| 225 |
int i; |
| 226 |
|
| 227 |
if (fname == NULL) { |
| 228 |
fin = stdin; |
| 229 |
fname = "<stdin>"; |
| 230 |
} else if ((fin = fopen(fname, "r")) == NULL) { |
| 231 |
fprintf(stderr, "%s: Cannot open: %s\n", progname, fname); |
| 232 |
quit(1); |
| 233 |
} |
| 234 |
/* discard header */ |
| 235 |
while (fgets(sbuf, sizeof(sbuf), fin) != NULL && sbuf[0] != '\n') |
| 236 |
; |
| 237 |
/* get picture size */ |
| 238 |
if (fgets(sbuf, sizeof(sbuf), fin) == NULL || |
| 239 |
sscanf(sbuf, "-Y %d +X %d\n", &nrows, &ncols) != 2) { |
| 240 |
fprintf(stderr, "%s: Bad picture size: %s\n", progname, fname); |
| 241 |
quit(1); |
| 242 |
} |
| 243 |
|
| 244 |
mult = ctab[cftype].hsiz / ncols; |
| 245 |
if (ctab[cftype].vsiz / nrows < mult) |
| 246 |
mult = ctab[cftype].vsiz / nrows; |
| 247 |
|
| 248 |
if (mult < 1) { |
| 249 |
fprintf(stderr, "%s: Resolution mismatch: %s\n", |
| 250 |
progname, fname); |
| 251 |
quit(1); |
| 252 |
} |
| 253 |
if (mult > MAXMULT) |
| 254 |
mult = MAXMULT; /* maximum element size */ |
| 255 |
|
| 256 |
hhome = ctab[cftype].hbeg + (ctab[cftype].hsiz - ncols*mult)/2; |
| 257 |
vhome = ctab[cftype].vbeg + (ctab[cftype].vsiz - nrows*mult)/2; |
| 258 |
|
| 259 |
d_init(); |
| 260 |
|
| 261 |
for (i = nrows-1; i >= 0; i--) { |
| 262 |
if (freadscan(scanline, ncols, fin) < 0) { |
| 263 |
fprintf(stderr, "%s: Read error in row %d: %s\n", |
| 264 |
progname, i, fname); |
| 265 |
quit(1); |
| 266 |
} |
| 267 |
scanout(scanline, i); |
| 268 |
} |
| 269 |
|
| 270 |
d_done(); |
| 271 |
|
| 272 |
fclose(fin); |
| 273 |
} |
| 274 |
|
| 275 |
|
| 276 |
static void |
| 277 |
d_init(void) /* set up dicomed, files */ |
| 278 |
{ |
| 279 |
//char *mktemp(); |
| 280 |
/* initial condition select */ |
| 281 |
putw(O_ICS|ctab[cftype].icsfield, stdout); |
| 282 |
/* configuration code */ |
| 283 |
putw(O_CONF|ctab[cftype].ccode, stdout); |
| 284 |
/* select raster mode */ |
| 285 |
putw(O_ECS|ECS_RAS, stdout); |
| 286 |
/* color or black and white */ |
| 287 |
putw(O_ECS|(docolor?ECS_COL:ECS_BW), stdout); |
| 288 |
/* bypass translation tables */ |
| 289 |
putw(O_ECS|ECS_BT, stdout); |
| 290 |
/* point element select */ |
| 291 |
putw(O_PES|mult<<9|010, stdout); |
| 292 |
putw(mult<<9|010, stdout); |
| 293 |
putw(mult<<4|mult, stdout); |
| 294 |
|
| 295 |
if (docolor) { /* color output */ |
| 296 |
/* set up red file */ |
| 297 |
if (ftab[RED].fn == NULL) |
| 298 |
ftab[RED].fn = mktemp(TEMPLATE); |
| 299 |
if ((ftab[RED].fp = fopen(ftab[RED].fn, "w+")) == NULL) { |
| 300 |
fprintf(stderr, "%s: Cannot open: %s\n", |
| 301 |
progname, ftab[RED].fn); |
| 302 |
quit(1); |
| 303 |
} |
| 304 |
putw(O_ECS|ECS_RED, ftab[RED].fp); /* red filter */ |
| 305 |
putw(O_VPA, ftab[RED].fp); /* home */ |
| 306 |
putw(hhome<<3, ftab[RED].fp); |
| 307 |
putw(vhome<<3, ftab[RED].fp); |
| 308 |
/* set up green file */ |
| 309 |
ftab[GRN].fp = stdout; |
| 310 |
putw(O_ECS|ECS_GRN, ftab[GRN].fp); /* green filter */ |
| 311 |
putw(O_VPA, ftab[GRN].fp); /* home */ |
| 312 |
putw(hhome<<3, ftab[GRN].fp); |
| 313 |
putw(vhome<<3, ftab[GRN].fp); |
| 314 |
/* set up blue file */ |
| 315 |
if (ftab[BLU].fn == NULL) |
| 316 |
ftab[BLU].fn = mktemp(TEMPLATE); |
| 317 |
if ((ftab[BLU].fp = fopen(ftab[BLU].fn, "w+")) == NULL) { |
| 318 |
fprintf(stderr, "%s: Cannot open: %s\n", |
| 319 |
progname, ftab[BLU].fn); |
| 320 |
quit(1); |
| 321 |
} |
| 322 |
putw(O_ECS|ECS_BLU, ftab[BLU].fp); /* blue filter */ |
| 323 |
putw(O_VPA, ftab[BLU].fp); /* home */ |
| 324 |
putw(hhome<<3, ftab[BLU].fp); |
| 325 |
putw(vhome<<3, ftab[BLU].fp); |
| 326 |
|
| 327 |
} else { /* black and white */ |
| 328 |
ftab[NEU].fp = stdout; |
| 329 |
putw(O_ECS|ECS_NEU, ftab[NEU].fp); /* neutral filter */ |
| 330 |
putw(O_VPA, ftab[NEU].fp); /* home */ |
| 331 |
putw(hhome<<3, ftab[NEU].fp); |
| 332 |
putw(vhome<<3, ftab[NEU].fp); |
| 333 |
} |
| 334 |
} |
| 335 |
|
| 336 |
|
| 337 |
static void |
| 338 |
scanout( /* output scan line */ |
| 339 |
COLOR *scan, |
| 340 |
int y |
| 341 |
) |
| 342 |
{ |
| 343 |
int i; |
| 344 |
/* uses horiz. flyback */ |
| 345 |
if (docolor) |
| 346 |
for (i = 0; i < 3; i++) |
| 347 |
runlength(scan, i); |
| 348 |
else |
| 349 |
runlength(scan, NEU); |
| 350 |
} |
| 351 |
|
| 352 |
|
| 353 |
static void |
| 354 |
d_done(void) /* flush files, finish frame */ |
| 355 |
{ |
| 356 |
if (docolor) { |
| 357 |
transfer(ftab[RED].fp, stdout); |
| 358 |
transfer(ftab[BLU].fp, stdout); |
| 359 |
} |
| 360 |
putw(O_ECS|ECS_FA, stdout); /* film advance */ |
| 361 |
fflush(stdout); |
| 362 |
if (ferror(stdout)) { |
| 363 |
fprintf(stderr, "%s: Write error: <stdout>\n", progname); |
| 364 |
quit(1); |
| 365 |
} |
| 366 |
} |
| 367 |
|
| 368 |
|
| 369 |
static void |
| 370 |
runlength( /* do scanline for filter f */ |
| 371 |
COLOR *scan, |
| 372 |
int f |
| 373 |
) |
| 374 |
{ |
| 375 |
//double mapfilter(); |
| 376 |
BYTE ebuf[2*HSIZE]; |
| 377 |
register int j; |
| 378 |
register BYTE *ep; |
| 379 |
|
| 380 |
ep = ebuf; |
| 381 |
ep[0] = mapfilter(scan[0], f) * 255.9999; |
| 382 |
ep[1] = 1; |
| 383 |
ep += 2; |
| 384 |
for (j = 1; j < ncols; j++) { |
| 385 |
ep[0] = mapfilter(scan[j], f) * 255.9999; |
| 386 |
if (ep[0] == ep[-2] && ep[-1] < 255) |
| 387 |
ep[-1]++; |
| 388 |
else { |
| 389 |
ep[1] = 1; |
| 390 |
ep += 2; |
| 391 |
} |
| 392 |
} |
| 393 |
j = ep - ebuf; |
| 394 |
putw(O_FES, ftab[f].fp); |
| 395 |
putw(FES_RL|j>>1, ftab[f].fp); |
| 396 |
for (ep = ebuf; j-- > 0; ep++) |
| 397 |
putc(*ep, ftab[f].fp); |
| 398 |
|
| 399 |
if (ferror(ftab[f].fp)) { |
| 400 |
fprintf(stderr, "%s: Write error: %s\n", progname, |
| 401 |
ftab[f].fn==NULL ? "<stdout>" : ftab[f].fn); |
| 402 |
quit(1); |
| 403 |
} |
| 404 |
} |
| 405 |
|
| 406 |
|
| 407 |
static double |
| 408 |
mapfilter( /* map filter value */ |
| 409 |
COLOR col, |
| 410 |
register int f |
| 411 |
) |
| 412 |
{ |
| 413 |
static float *mp[4] = {neumap, neumap, neumap, neumap}; |
| 414 |
double x, y; |
| 415 |
|
| 416 |
y = f_val(col,f); |
| 417 |
|
| 418 |
if (y >= 1.0) |
| 419 |
return(1.0); |
| 420 |
|
| 421 |
while (y >= mp[f][2]) |
| 422 |
mp[f] += 2; |
| 423 |
while (y < mp[f][0]) |
| 424 |
mp[f] -= 2; |
| 425 |
|
| 426 |
x = (y - mp[f][0]) / (mp[f][2] - mp[f][0]); |
| 427 |
|
| 428 |
return((1.0-x)*mp[f][1] + x*mp[f][3]); |
| 429 |
} |
| 430 |
|
| 431 |
|
| 432 |
/* XXX replaces putw() from stdio.h. Do we really need this? */ |
| 433 |
int |
| 434 |
putw( /* output a (short) word */ |
| 435 |
int w, |
| 436 |
register FILE *fp |
| 437 |
) |
| 438 |
{ |
| 439 |
putc(w&0377, fp); /* in proper order! */ |
| 440 |
putc(w>>8, fp); |
| 441 |
return 0; |
| 442 |
} |
| 443 |
|
| 444 |
|
| 445 |
static void |
| 446 |
transfer( /* transfer fin contents to fout, close fin */ |
| 447 |
register FILE *fin, |
| 448 |
register FILE *fout |
| 449 |
) |
| 450 |
{ |
| 451 |
register int c; |
| 452 |
|
| 453 |
fseek(fin, 0L, 0); /* rewind input */ |
| 454 |
|
| 455 |
while ((c = getc(fin)) != EOF) /* transfer file */ |
| 456 |
putc(c, fout); |
| 457 |
|
| 458 |
fclose(fin); /* close input */ |
| 459 |
} |
