4.3BSD - /usr/src/usr.lib/lpr/filters/rvcat.c

   1: /*
   2:  * Copyright (c) 1983 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  */
   6: 
   7: #ifndef lint
   8: static char sccsid[] = "@(#)rvcat.c	5.1 (Berkeley) 5/15/85";
   9: #endif not lint
  10: 
  11: /*
  12:  * Cat Simulator for Versatec and Varian
  13:  * Modified for Varian with rotated fonts: wnj 5/30/80.
  14:  *
  15:  * Takes two extra special codes defined by rvsort:
  16:  *	0115 - break for new page, goto (0,0)
  17:  *	0116 - lead 64* following byte
  18:  */
  19: 
  20: #include <stdio.h>
  21: #include <sys/vcmd.h>
  22: #include <vfont.h>
  23: 
  24: int prtmode[] = {VPRINT};
  25: int pltmode[] = {VPLOT};
  26: 
  27: #define DISPATCHSIZE        256 /* must be a power of two */
  28: #define CHARMASK        (DISPATCHSIZE-1)
  29: #define NFONTS          25
  30: #define SPECIALFONT     3
  31: #define DSIZ            ((sizeof *dispatch)*DISPATCHSIZE)
  32: #define MAXF            4
  33: 
  34: #define LOCAL_RAILMAG       ".railmag"
  35: #define GLOBAL_RAILMAG      "/usr/lib/vfont/railmag"
  36: 
  37: /*
  38:  * Here we make up for the fact that we only have 2112
  39:  * bits vertically when we need 2200 (11''*200/in), by
  40:  * a 4% vertical size squashing.
  41:  */
  42: #define CONVERT(n)      ((n*(200./432.))*(2112./2200.))
  43: #define RECONVERT(n)        ((n*(432./200.))*(2200./2112.))
  44: 
  45: #define NLINES          110
  46: 
  47: #define FF_LINES        1600    /* Scan lines to output before formfeeding. */
  48: 
  49: #define min(a,b)        (a<b ? a : b)
  50: 
  51: char    buffer[NLINES * 264];   /* Big enough for varain */
  52: char    *buf0p = &buffer[0];    /* Zero origin in circular buffer */
  53: 
  54: char    *calloc();
  55: char    *nalloc();
  56: char    *allpanic();
  57: 
  58: struct  header  header;
  59: struct dispatch *dispatch;
  60: 
  61: struct  fontdes {
  62:     int fnum;
  63:     int psize;
  64:     struct  dispatch *disp;
  65:     char    *bits;
  66: } fontdes[NFONTS] = {
  67:     -1,
  68:     -1
  69: };
  70: 
  71: struct point_sizes {
  72:     int stupid_code;
  73:     int real_code;
  74: } point_sizes[] = {
  75:     010, 6,
  76:     0, 7,
  77:     01, 8,
  78:     07, 9,
  79:     02, 10,
  80:     03, 11,
  81:     04, 12,
  82:     05, 14,
  83:     0211, 16,
  84:     06, 18,
  85:     0212, 20,
  86:     0213, 22,
  87:     0214, 24,
  88:     0215, 28,
  89:     0216, 36,
  90:     0, 0
  91: };
  92: 
  93: int lines;
  94: 
  95: int vc = 1;         /* varian/versatec output file descriptor */
  96: int varian = 1;     /* 0 for versatec, 1 for varian. */
  97: int BYTES_PER_LINE = 264;   /* number of bytes per raster line. */
  98: int PAGE_LINES = 1700;  /* number of raster lines per page. */
  99: int BUFFER_SIZE = NLINES * 264; /* buffer size. */
 100: int cfnum = -1;
 101: int cpsize = 10;
 102: int cfont = 1;
 103: char    *bits;
 104: int nfontnum = -1;
 105: int fontwanted = 1;
 106: int npsize = 10;
 107: int last_ssize = 02;
 108: int xpos, ypos;
 109: int esc, lead, back, verd, mcase, railmag;
 110: double  row, col;
 111: char    *fontname[MAXF];
 112: char    fnbuf[120];
 113: char    *scanline;
 114: int linecount;
 115: 
 116: char    asctab[128] = {
 117:     '\0',   /*blank*/
 118:     'h',    /*h*/
 119:     't',    /*t*/
 120:     'n',    /*n*/
 121:     'm',    /*m*/
 122:     'l',    /*l*/
 123:     'i',    /*i*/
 124:     'z',    /*z*/
 125:     's',    /*s*/
 126:     'd',    /*d*/
 127:     'b',    /*b*/
 128:     'x',    /*x*/
 129:     'f',    /*f*/
 130:     'j',    /*j*/
 131:     'u',    /*u*/
 132:     'k',    /*k*/
 133:     '\0',   /*blank*/
 134:     'p',    /*p*/
 135:     '\06',  /*_ 3/4 em dash*/
 136:     ';',    /*;*/
 137:     '\0',   /*blank*/
 138:     'a',    /*a*/
 139:     '\05',  /*rule*/
 140:     'c',    /*c*/
 141:     '`',    /*` open*/
 142:     'e',    /*e*/
 143:     '\'',   /*' close*/
 144:     'o',    /*o*/
 145:     '\021', /*1/4*/
 146:     'r',    /*r*/
 147:     '\022', /*1/2*/
 148:     'v',    /*v*/
 149:     '-',    /*- hyphen*/
 150:     'w',    /*w*/
 151:     'q',    /*q*/
 152:     '/',    /*/*/
 153:     '.',    /*.*/
 154:     'g',    /*g*/
 155:     '\023', /*3/4*/
 156:     ',',    /*,*/
 157:     '&',    /*&*/
 158:     'y',    /*y*/
 159:     '\0',   /*blank*/
 160:     '%',    /*%*/
 161:     '\0',   /*blank*/
 162:     'Q',    /*Q*/
 163:     'T',    /*T*/
 164:     'O',    /*O*/
 165:     'H',    /*H*/
 166:     'N',    /*N*/
 167:     'M',    /*M*/
 168:     'L',    /*L*/
 169:     'R',    /*R*/
 170:     'G',    /*G*/
 171:     'I',    /*I*/
 172:     'P',    /*P*/
 173:     'C',    /*C*/
 174:     'V',    /*V*/
 175:     'E',    /*E*/
 176:     'Z',    /*Z*/
 177:     'D',    /*D*/
 178:     'B',    /*B*/
 179:     'S',    /*S*/
 180:     'Y',    /*Y*/
 181:     '\0',   /*blank*/
 182:     'F',    /*F*/
 183:     'X',    /*X*/
 184:     'A',    /*A*/
 185:     'W',    /*W*/
 186:     'J',    /*J*/
 187:     'U',    /*U*/
 188:     'K',    /*K*/
 189:     '0',    /*0*/
 190:     '1',    /*1*/
 191:     '2',    /*2*/
 192:     '3',    /*3*/
 193:     '4',    /*4*/
 194:     '5',    /*5*/
 195:     '6',    /*6*/
 196:     '7',    /*7*/
 197:     '8',    /*8*/
 198:     '9',    /*9*/
 199:     '*',    /***/
 200:     '\04',  /*minus*/
 201:     '\01',  /*fi*/
 202:     '\02',  /*fl*/
 203:     '\03',  /*ff*/
 204:     '\020', /* cent sign */
 205:     '\012', /*ffl*/
 206:     '\011', /*ffi*/
 207:     '(',    /*(*/
 208:     ')',    /*)*/
 209:     '[',    /*[*/
 210:     ']',    /*]*/
 211:     '\013', /* degree */
 212:     '\014', /* dagger */
 213:     '=',    /*=*/
 214:     '\017', /* registered */
 215:     ':',    /*:*/
 216:     '+',    /*+*/
 217:     '\0',   /*blank*/
 218:     '!',    /*!*/
 219:     '\07',  /* bullet */
 220:     '?',    /*?*/
 221:     '\015', /*foot mark*/
 222:     '|',    /*|*/
 223:     '\0',   /*blank*/
 224:     '\016', /* copyright */
 225:     '\010', /* square */
 226:     '$',    /*$*/
 227:     '\0',
 228:     '\0',
 229:     '"',    /*"*/
 230:     '#',    /*#*/
 231:     '<',    /*<*/
 232:     '>',    /*>*/
 233:     '@',    /*@*/
 234:     '\\',   /*\\*/
 235:     '^',    /*^*/
 236:     '{',    /*{*/
 237:     '}',    /*}*/
 238:     '~' /*~*/
 239: };
 240: 
 241: char spectab[128] = {
 242:     '\0',   /*blank*/
 243:     'w',    /*psi*/
 244:     'h',    /*theta*/
 245:     'm',    /*nu*/
 246:     'l',    /*mu*/
 247:     'k',    /*lambda*/
 248:     'i',    /*iota*/
 249:     'f',    /*zeta*/
 250:     'r',    /*sigma*/
 251:     'd',    /*delta*/
 252:     'b',    /*beta*/
 253:     'n',    /*xi*/
 254:     'g',    /*eta*/
 255:     'u',    /*phi*/
 256:     't',    /*upsilon*/
 257:     'j',    /*kappa*/
 258:     '\0',   /*blank*/
 259:     'p',    /*pi*/
 260:     '@',    /*at-sign*/
 261:     '7',    /*down arrow*/
 262:     '\0',   /*blank*/
 263:     'a',    /*alpha*/
 264:     '|',    /*or*/
 265:     'v',    /*chi*/
 266:     '"',    /*"*/
 267:     'e',    /*epsilon*/
 268:     '=',    /*=*/
 269:     'o',    /*omicron*/
 270:     '4',    /*left arrow*/
 271:     'q',    /*rho*/
 272:     '6',    /*up arrow*/
 273:     's',    /*tau*/
 274:     '_',    /*underrule*/
 275:     '\\',   /*\*/
 276:     'W',    /*Psi*/
 277:     '\07',  /*bell system sign*/
 278:     '\001', /*infinity*/
 279:     'c',    /*gamma*/
 280:     '\002', /*improper superset*/
 281:     '\003', /*proportional to*/
 282:     '\004', /*right hand*/
 283:     'x',    /*omega*/
 284:     '\0',   /*blank*/
 285:     '(',    /*gradient*/
 286:     '\0',   /*blank*/
 287:     'U',    /*Phi*/
 288:     'H',    /*Theta*/
 289:     'X',    /*Omega*/
 290:     '\005', /*cup (union)*/
 291:     '\006', /*root en*/
 292:     '\014', /*terminal sigma*/
 293:     'K',    /*Lambda*/
 294:     '-',    /*minus*/
 295:     'C',    /*Gamma*/
 296:     '\015', /*integral sign*/
 297:     'P',    /*Pi*/
 298:     '\032', /*subset of*/
 299:     '\033', /*superset of*/
 300:     '2',    /*approximates*/
 301:     'y',    /*partial derivative*/
 302:     'D',    /*Delta*/
 303:     '\013', /*square root*/
 304:     'R',    /*Sigma*/
 305:     '1',    /*approx =*/
 306:     '\0',   /*blank*/
 307:     '>',    /*>*/
 308:     'N',    /*Xi*/
 309:     '<',    /*<*/
 310:     '\016', /*slash (longer)*/
 311:     '\034', /*cap (intersection)*/
 312:     'T',    /*Upsilon*/
 313:     '\035', /*not*/
 314:     '\023', /*right ceiling (rt of ")*/
 315:     '\024', /*left top (of big curly)*/
 316:     '\017', /*bold vertical*/
 317:     '\030', /*left center of big curly bracket*/
 318:     '\025', /*left bottom*/
 319:     '\026', /*right top*/
 320:     '\031', /*right center of big curly bracket*/
 321:     '\027', /*right bot*/
 322:     '\021', /*right floor (rb of ")*/
 323:     '\020', /*left floor (left bot of big sq bract)*/
 324:     '\022', /*left ceiling (lt of ")*/
 325:     '*',    /*multiply*/
 326:     '/',    /*divide*/
 327:     '\010', /*plus-minus*/
 328:     '\011', /*<=*/
 329:     '\012', /*>=*/
 330:     '0',    /*identically equal*/
 331:     '3',    /*not equal*/
 332:     '{',    /*{*/
 333:     '}',    /*}*/
 334:     '\'',   /*' acute accent*/
 335:     '\`',   /*` grave accent*/
 336:     '^',    /*^*/
 337:     '#',    /*sharp*/
 338:     '\036', /*left hand*/
 339:     '\037', /*member of*/
 340:     '~',    /*~*/
 341:     'z',    /*empty set*/
 342:     '\0',   /*blank*/
 343:     'Y',    /*dbl dagger*/
 344:     'Z',    /*box rule*/
 345:     '9',    /*asterisk*/
 346:     '[',    /*improper subset*/
 347:     ']',    /*circle*/
 348:     '\0',   /*blank*/
 349:     '+',    /*eqn plus*/
 350:     '5',    /*right arrow*/
 351:     '8' /*section mark*/
 352: };
 353: 
 354: main(argc, argv)
 355:     int argc;
 356:     char *argv[];
 357: {
 358:     char *namearg = NULL;
 359:     char *hostarg = NULL;
 360:     char *acctfile = NULL;
 361: 
 362:     while (--argc) {
 363:         if (*(*++argv) == '-')
 364:             switch (argv[0][1]) {
 365:             case 'x':
 366:                 BYTES_PER_LINE = atoi(&argv[0][2]) / 8;
 367:                 BUFFER_SIZE = NLINES * BYTES_PER_LINE;
 368:                 break;
 369: 
 370:             case 'y':
 371:                 PAGE_LINES = atoi(&argv[0][2]);
 372:                 break;
 373: 
 374:             case 'n':
 375:                 if (argc > 1) {
 376:                     argc--;
 377:                     namearg = *++argv;
 378:                 }
 379:                 break;
 380: 
 381:             case 'h':
 382:                 if (argc > 1) {
 383:                     argc--;
 384:                     hostarg = *++argv;
 385:                 }
 386:                 break;
 387:             }
 388:         else
 389:             acctfile = *argv;
 390:     }
 391:     ioctl(vc, VSETSTATE, pltmode);
 392:     readrm();
 393:     ofile();
 394:     ioctl(vc, VSETSTATE, prtmode);
 395:     if (varian)
 396:         write(vc, "\f", 2);
 397:     else
 398:         write(vc, "\n\n\n\n\n", 6);
 399:     account(namearg, hostarg, acctfile);
 400:     exit(0);
 401: }
 402: 
 403: readrm()
 404: {
 405:     register int i;
 406:     register char *cp;
 407:     register int rmfd;
 408:     char c;
 409: 
 410:     if ((rmfd = open(LOCAL_RAILMAG, 0)) < 0)
 411:         if ((rmfd = open(GLOBAL_RAILMAG, 0)) < 0) {
 412:             fprintf(stderr, "rvcat: No railmag file\n");
 413:             exit(2);
 414:         }
 415:     cp = fnbuf;
 416:     for (i = 0; i < MAXF; i++) {
 417:         fontname[i] = cp;
 418:         while (read(rmfd, &c, 1) == 1 && c != '\n')
 419:             *cp++ = c;
 420:         *cp++ = '\0';
 421:     }
 422:     close(rmfd);
 423: }
 424: 
 425: ofile()
 426: {
 427:     register int c;
 428:     register int i;
 429:     double scol;
 430:     static int initialized;
 431: 
 432:     lines = 0;
 433:     while ((c = getchar()) != EOF) {
 434:         if (!c)
 435:             continue;
 436:         if (c & 0200) {
 437:             esc += (~c) & 0177;
 438:             continue;
 439:         }
 440:         if (esc) {
 441:             if (back)
 442:                 esc = -esc;
 443:             col += esc;
 444:             esc = 0;
 445:             i = CONVERT(col);
 446:             while (i >= NLINES) {
 447:                 slop_lines(15);
 448:                 i = CONVERT(col);
 449:             }
 450:             ypos = i;
 451:         }
 452:         if ((c & 0377) < 0100)  /*  Purely for efficiency  */
 453:             goto normal_char;
 454:         switch (c) {
 455: 
 456:         case 0100:
 457:             esc = 0;
 458:             lead = 0;
 459:             linecount = 0;
 460:             verd = 0;
 461:             back = 0;
 462:             mcase = 0;
 463:             railmag = 0;
 464:             if (loadfont(railmag, cpsize) < 0)
 465:                 fprintf(stderr, "rvcat: Can't load initial font\n");
 466:             if (initialized)
 467:                 goto reset;
 468:             initialized = 1;
 469:             row = 0;
 470:             xpos = CONVERT(row);
 471:             for (c = 0; c < BUFFER_SIZE; c++)
 472:                 buffer[c] = 0;
 473:             col = 0;
 474:             ypos = 0;
 475:             break;
 476: 
 477:         case 0101:  /* lower rail */
 478:             crail(railmag &= ~01);
 479:             break;
 480: 
 481:         case 0102:  /* upper rail */
 482:             crail(railmag |= 01);
 483:             break;
 484: 
 485:         case 0103:  /* upper mag */
 486:             crail(railmag |= 02);
 487:             break;
 488: 
 489:         case 0104:  /* lower mag */
 490:             crail(railmag &= ~02);
 491:             break;
 492: 
 493:         case 0105:  /* lower case */
 494:             mcase = 0;
 495:             break;
 496: 
 497:         case 0106:  /* upper case */
 498:             mcase = 0100;
 499:             break;
 500: 
 501:         case 0107:  /* escape forward */
 502:             back = 0;
 503:             break;
 504: 
 505:         case 0110:  /* escape backwards */
 506:             back = 1;
 507:             break;
 508: 
 509:         case 0111:  /* stop */
 510:             break;
 511: 
 512:         case 0112:  /* lead forward */
 513:             verd = 0;
 514:             break;
 515: 
 516:         case 0113:  /* undefined */
 517:             break;
 518: 
 519:         case 0114:  /* lead backward */
 520:             verd = 1;
 521:             break;
 522: 
 523:         case 0115:  /* undefined */
 524: reset:
 525:             c = lines % PAGE_LINES;
 526:             while (c < FF_LINES) {
 527:                 slop_lines(min(FF_LINES - c, NLINES));
 528:                 c = lines % PAGE_LINES;
 529:             }
 530:             new_page(PAGE_LINES - c);
 531:             break;
 532: 
 533:         case 0116:
 534:             lead = (getchar() & 0377) * 64;
 535:             goto leadin;
 536: 
 537:         case 0117:
 538:             break;
 539: 
 540:         default:
 541:             if ((c & 0340) == 0140) /* leading */ {
 542:                 lead = (~c) & 037;
 543: leadin:
 544:                 if (verd)
 545:                     lead = -lead;
 546:                 row += lead*3;  /*  Lead is 3 units  */
 547:                 xpos = CONVERT(row);
 548:                 continue;
 549:             }
 550:             if ((c & 0360) == 0120) /* size change */ {
 551:                 loadfont(railmag, findsize(c & 017));
 552:                 continue;
 553:             }
 554:             if (c & 0300)
 555:                 continue;
 556: 
 557: normal_char:
 558:             if (row < 0 || CONVERT(row) >= BYTES_PER_LINE * 8)
 559:                 continue;
 560:             c = (c & 077) | mcase;
 561:             outc(c);
 562:         }
 563:     }
 564: out:
 565:     slop_lines(NLINES);
 566: }
 567: 
 568: findsize(code)
 569:     register int code;
 570: {
 571:     register struct point_sizes *psp;
 572: 
 573:     psp = point_sizes;
 574:     while (psp->real_code != 0) {
 575:         if ((psp->stupid_code & 017) == code)
 576:             break;
 577:         psp++;
 578:     }
 579:     code = 0;
 580:     if (!(last_ssize & 0200) && (psp->stupid_code & 0200))
 581:         code = -55;
 582:     else if ((last_ssize & 0200) && !(psp->stupid_code & 0200))
 583:         code = 55;
 584:     if (back)
 585:         code = -code;
 586:     esc += code;
 587:     last_ssize = psp->stupid_code;
 588:     return(psp->real_code);
 589: }
 590: 
 591: account(who, from, acctfile)
 592:     char *who, *from, *acctfile;
 593: {
 594:     register FILE *a;
 595: 
 596:     if (who == NULL || acctfile == NULL)
 597:         return;
 598:     if (access(acctfile, 02) || (a = fopen(acctfile, "a")) == NULL)
 599:         return;
 600:     /*
 601: 	 * Varian accounting is done by 8.5 inch pages;
 602: 	 * Versatec accounting is by the (12 inch) foot.
 603: 	 */
 604:     fprintf(a, "t%6.2f\t", (double)lines / (double)PAGE_LINES);
 605:     if (from != NULL)
 606:         fprintf(a, "%s:", from);
 607:     fprintf(a, "%s\n", who);
 608:     fclose(a);
 609: }
 610: 
 611: crail(nrail)
 612:     register int nrail;
 613: {
 614:     register int psize;
 615: 
 616:     psize = cpsize;
 617:     if (fontwanted && psize != npsize)
 618:         psize = npsize;
 619:     loadfont(nrail, psize);
 620: }
 621: 
 622: 
 623: loadfont(fnum, size)
 624:     register int fnum;
 625:     register int size;
 626: {
 627:     register int i;
 628:     char cbuf[80];
 629: 
 630:     fontwanted = 0;
 631:     if (fnum == cfnum && size == cpsize)
 632:         return(0);
 633:     for (i = 0; i < NFONTS; i++)
 634:         if (fontdes[i].fnum == fnum && fontdes[i].psize == size) {
 635:             cfnum = fontdes[i].fnum;
 636:             cpsize = fontdes[i].psize;
 637:             dispatch = &fontdes[i].disp[0];
 638:             bits = fontdes[i].bits;
 639:             cfont = i;
 640:             return(0);
 641:         }
 642:     if (fnum < 0 || fnum >= MAXF) {
 643:         fprintf(stderr, "rvcat: Internal error: illegal font\n");
 644:         return(-1);
 645:     }
 646:     nfontnum = fnum;
 647:     npsize = size;
 648:     fontwanted++;
 649:     return(0);
 650: }
 651: 
 652: 
 653: getfont()
 654: {
 655:     register int fnum, size, font;
 656:     int d;
 657:     char cbuf[BUFSIZ];
 658:     char *cp = cbuf;
 659:     char *dp;
 660: 
 661:     if (!fontwanted)
 662:         return(0);
 663:     fnum = nfontnum;
 664:     size = npsize;
 665:     sprintf(cbuf, "%s.%dr", fontname[fnum], size);
 666:     font = open(cbuf, 0);
 667:     if (font == -1) {
 668:         fprintf(stderr, "rvcat: ");
 669:         perror(cbuf);
 670:         fontwanted = 0;
 671:         return(-1);
 672:     }
 673:     if (read(font, &header, sizeof header)!=sizeof header || header.magic!=0436)
 674:         fprintf(stderr, "rvcat: %s: Bad font file", cbuf);
 675:     else {
 676:         cfont = relfont();
 677:         if (((bits=nalloc(header.size+DSIZ+1,1))== NULL)
 678:             && ((bits=allpanic(header.size+DSIZ+1))== NULL)) {
 679:                 fprintf(stderr, "rvcat: %s: ran out of memory\n", cbuf);
 680:                 exit(2);
 681:         } else {
 682:             /*
 683: 			 * have allocated one chunk of mem for font, dispatch.
 684: 			 * get the dispatch addr, align to word boundary.
 685: 			 */
 686:             d = (int) bits+header.size;
 687:             d += 1;
 688:             d &= ~1;
 689:             if (read(font, d, DSIZ)!=DSIZ
 690:               || read(font, bits, header.size)!=header.size)
 691:                 fprintf(stderr, "rvcat: bad font header");
 692:             else {
 693:                 close(font);
 694:                 cfnum = fontdes[cfont].fnum = fnum;
 695:                 cpsize = fontdes[cfont].psize = size;
 696:                 fontdes[cfont].bits = bits;
 697:                 fontdes[cfont].disp = (struct dispatch *) d;
 698:                 dispatch = &fontdes[cfont].disp[0];
 699:                 fontwanted = 0;
 700:                 return(0);
 701:             }
 702:         }
 703:     }
 704:     close(font);
 705:     fontwanted = 0;
 706:     return(-1);
 707: }
 708: 
 709: int lastloaded = -1;
 710: 
 711: relfont()
 712: {
 713:     register int newfont;
 714: 
 715:     newfont = lastloaded;
 716:     /*
 717: 	 * optimization for special font.  since we think that usually
 718: 	 * there is only one character at a time from any special math
 719: 	 * font, make it the candidate for removal.
 720: 	 */
 721:     if (fontdes[cfont].fnum != SPECIALFONT || fontdes[cfont].bits==0)
 722:         if (++newfont>=NFONTS)
 723:             newfont = 0;
 724:     lastloaded = newfont;
 725:     if ((int)fontdes[newfont].bits != -1 && fontdes[newfont].bits != 0)
 726:         nfree(fontdes[newfont].bits);
 727:     fontdes[newfont].bits = 0;
 728:     return(newfont);
 729: }
 730: 
 731: char *
 732: allpanic(nbytes)
 733:     int nbytes;
 734: {
 735:     register int i;
 736: 
 737:     for (i = 0; i <= NFONTS; i++)
 738:         if (fontdes[i].bits != (char *)-1 && fontdes[i].bits != (char *)0)
 739:             nfree(fontdes[i].bits);
 740:     lastloaded = cfont;
 741:     for (i = 0; i <= NFONTS; i++) {
 742:         fontdes[i].fnum = fontdes[i].psize = -1;
 743:         fontdes[i].bits = 0;
 744:         cfnum = cpsize = -1;
 745:     }
 746:     return(nalloc(nbytes,1));
 747: }
 748: 
 749: int M[] = { 0xffffffff, 0xfefefefe, 0xfcfcfcfc, 0xf8f8f8f8,
 750:         0xf0f0f0f0, 0xe0e0e0e0, 0xc0c0c0c0, 0x80808080, 0x0 };
 751: int N[] = { 0x00000000, 0x01010101, 0x03030303, 0x07070707,
 752:         0x0f0f0f0f, 0x1f1f1f1f, 0x3f3f3f3f, 0x7f7f7f7f, 0xffffffff };
 753: int strim[] = { 0xffffffff, 0xffffff00, 0xffff0000, 0xff000000, 0 };
 754: 
 755: outc(code)
 756:     int code;
 757: {
 758:     char c;             /* character to print */
 759:     register struct dispatch *d;    /* ptr to character font record */
 760:     register char *addr;        /* addr of font data */
 761:     int llen;           /* length of each font line */
 762:     int nlines;         /* number of font lines */
 763:     register char *scanp;       /* ptr to output buffer */
 764:     int scanp_inc;          /* increment to start of next buffer */
 765:     int offset;         /* bit offset to start of font data */
 766:     int i;              /* loop counter */
 767:     register int count;     /* font data ptr */
 768:     register unsigned fontdata; /* font data temporary */
 769:     register int off8;      /* offset + 8 */
 770:     int b0poff;         /* bit offset back towards buf0p */
 771: 
 772:     if (fontwanted)
 773:         getfont();
 774:     if (railmag == SPECIALFONT) {
 775:         if ((c = spectab[code]) < 0)
 776:             return(0);
 777:     } else if ((c = asctab[code]) < 0)
 778:         return(0);
 779:     d = dispatch+c;
 780:     if (d->nbytes) {
 781:         addr = bits+d->addr;
 782:         llen = (d->down+d->up+7)/8;
 783:         nlines = d->left+d->right;
 784:         if (ypos+d->right >= NLINES)
 785:             slop_lines(ypos+d->right-NLINES+6);
 786:         b0poff = BYTES_PER_LINE*8 - 1 - (xpos+d->down);
 787:         scanp = ((ypos-d->left-1)*BYTES_PER_LINE+b0poff/8)+buf0p;
 788:         if (scanp < &buffer[0])
 789:             scanp += BUFFER_SIZE;
 790:         scanp_inc = BYTES_PER_LINE-llen;
 791:         offset = -(b0poff&07);
 792:         off8 = offset+8;
 793:         for (i = 0; i < nlines; i++) {
 794:             if (scanp >= &buffer[BUFFER_SIZE])
 795:                 scanp -= BUFFER_SIZE;
 796:             count = llen;
 797:             if (scanp + count <= &buffer[BUFFER_SIZE])
 798:                 do {
 799:                     fontdata = *(unsigned *)addr;
 800:                     addr += 4;
 801:                     if (count < 4)
 802:                         fontdata &= ~strim[count];
 803:                     *(unsigned *)scanp |= (fontdata << offset) &~ M[off8];
 804:                     scanp++;
 805:                     *(unsigned *)scanp |= (fontdata << off8) &~ N[off8];
 806:                     scanp += 3;
 807:                     count -= 4;
 808:                 } while (count > 0);
 809:             scanp += scanp_inc+count;
 810:             addr += count;
 811:         }
 812:         return(1);
 813:     }
 814:     return(0);
 815: }
 816: 
 817: slop_lines(ncols)
 818:     int ncols;
 819: {
 820:     register int i, rcols;
 821: 
 822:     lines += ncols;
 823:     rcols = (&buffer[BUFFER_SIZE] - buf0p) / BYTES_PER_LINE;
 824:     if (rcols < ncols) {
 825:         if (write(vc, buf0p, BYTES_PER_LINE * rcols) < 0)
 826:             exit(1);
 827:         clear(buf0p, rcols * BYTES_PER_LINE);
 828:         buf0p = buffer;
 829:         ncols -= rcols;
 830:         ypos -= rcols;
 831:         col -= RECONVERT(rcols);
 832:     }
 833:     if (write(vc, buf0p, BYTES_PER_LINE * ncols) < 0)
 834:         exit(1);
 835:     clear(buf0p, BYTES_PER_LINE * ncols);
 836:     buf0p += BYTES_PER_LINE * ncols;
 837:     if (buf0p >= &buffer[BUFFER_SIZE])
 838:         buf0p -= BUFFER_SIZE;
 839:     ypos -= ncols;
 840:     col -= RECONVERT(ncols);
 841: }
 842: 
 843: /*ARGSUSED*/
 844: clear(lp, nbytes)
 845:     int *lp;
 846:     int nbytes;
 847: {
 848:     asm("movc5 $0,(sp),$0,8(ap),*4(ap)");
 849: }
 850: 
 851: /* Start a new page by formfeeding, resetting buffer and column counters. */
 852: new_page(lines_left)
 853:     int lines_left;     /* ... on page. */
 854: {
 855:     lines += lines_left;
 856:     buf0p = buffer;     /* Clear out buffer and reset pointers. */
 857:     clear(buf0p, BYTES_PER_LINE * NLINES);
 858:     row = 0;
 859:     col = 0;
 860:     xpos = CONVERT(row);
 861:     ypos = 0;
 862:     ioctl(vc, VSETSTATE, prtmode);
 863:     write (vc, "\f", 2);
 864:     ioctl(vc, VSETSTATE, pltmode);
 865: }
 866: 
 867: char *
 868: nalloc(i, j)
 869:     int i, j;
 870: {
 871:     register char *cp;
 872: 
 873:     cp = calloc(i, j);
 874:     return(cp);
 875: }
 876: 
 877: nfree(cp)
 878:     char *cp;
 879: {
 880:     free(cp);
 881: }

Defined functions

Defined variables

Defined struct's

Defined macros