Commit | Line | Data |
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fa32567f DF |
1 | /* |
2 | * Copyright (c) 1983 Regents of the University of California. | |
9b0a4950 KB |
3 | * All rights reserved. |
4 | * | |
1c15e888 C |
5 | * Redistribution and use in source and binary forms are permitted provided |
6 | * that: (1) source distributions retain this entire copyright notice and | |
7 | * comment, and (2) distributions including binaries display the following | |
8 | * acknowledgement: ``This product includes software developed by the | |
9 | * University of California, Berkeley and its contributors'' in the | |
10 | * documentation or other materials provided with the distribution and in | |
11 | * all advertising materials mentioning features or use of this software. | |
12 | * Neither the name of the University nor the names of its contributors may | |
13 | * be used to endorse or promote products derived from this software without | |
14 | * specific prior written permission. | |
15 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED | |
16 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF | |
17 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
fa32567f DF |
18 | */ |
19 | ||
c936af6c | 20 | #ifndef lint |
9b0a4950 KB |
21 | char copyright[] = |
22 | "@(#) Copyright (c) 1983 Regents of the University of California.\n\ | |
23 | All rights reserved.\n"; | |
24 | #endif /* not lint */ | |
25 | ||
26 | #ifndef lint | |
1c15e888 | 27 | static char sccsid[] = "@(#)vcat.c 5.5 (Berkeley) 6/1/90"; |
9b0a4950 | 28 | #endif /* not lint */ |
c936af6c | 29 | |
5647b8c0 BJ |
30 | /* |
31 | * Cat Simulator for Versatec and Varian | |
32 | */ | |
33 | ||
5647b8c0 | 34 | #include <stdio.h> |
5647b8c0 BJ |
35 | #include <sys/vcmd.h> |
36 | #include <vfont.h> | |
37 | ||
dfc1084e RC |
38 | int prtmode[] = {VPRINT}; |
39 | int pltmode[] = {VPLOT}; | |
5647b8c0 BJ |
40 | |
41 | #define DISPATCHSIZE 256 /* must be a power of two */ | |
42 | #define CHARMASK (DISPATCHSIZE-1) | |
43 | #define NFONTS 25 | |
44 | #define SPECIALFONT 3 | |
45 | #define DSIZ ((sizeof *dispatch)*DISPATCHSIZE) | |
46 | #define MAXF 4 | |
47 | ||
48 | #define LOCAL_RAILMAG ".railmag" | |
49 | #define GLOBAL_RAILMAG "/usr/lib/vfont/railmag" | |
50 | ||
51 | #define CONVERT(n) (n*(200./432.)) | |
52 | #define RECONVERT(n) (n*(432./200.)) | |
53 | ||
5647b8c0 | 54 | #define NLINES 110 |
5647b8c0 | 55 | |
46e69590 RC |
56 | char buffer[NLINES * 880]; /* Big enough for versatec */ |
57 | char *buf0p = &buffer[0]; /* Zero origin in circular buffer */ | |
5647b8c0 BJ |
58 | |
59 | char *calloc(); | |
60 | char *nalloc(); | |
61 | char *allpanic(); | |
62 | ||
63 | struct header header; | |
64 | struct dispatch *dispatch; | |
65 | ||
66 | struct fontdes { | |
67 | int fnum; | |
68 | int psize; | |
69 | struct dispatch *disp; | |
70 | char *bits; | |
71 | } fontdes[NFONTS] = { | |
72 | -1, | |
73 | -1 | |
74 | }; | |
75 | ||
76 | struct point_sizes { | |
77 | int stupid_code; | |
78 | int real_code; | |
79 | } point_sizes[] = { | |
80 | 010, 6, | |
81 | 0, 7, | |
82 | 01, 8, | |
83 | 07, 9, | |
84 | 02, 10, | |
85 | 03, 11, | |
86 | 04, 12, | |
87 | 05, 14, | |
88 | 0211, 16, | |
89 | 06, 18, | |
90 | 0212, 20, | |
91 | 0213, 22, | |
92 | 0214, 24, | |
93 | 0215, 28, | |
94 | 0216, 36, | |
95 | 0, 0 | |
96 | }; | |
97 | ||
5647b8c0 BJ |
98 | int lines; |
99 | ||
99b206fb RC |
100 | int vc = 1; /* varian/versatec output file descriptor */ |
101 | int varian; /* 0 for versatec, 1 for varian. */ | |
102 | int BYTES_PER_LINE = 880; /* number of bytes per raster line. */ | |
103 | int PAGE_LINES = 2400; /* number of raster lines per page. */ | |
104 | int BUFFER_SIZE = NLINES * 880; /* buffer size. */ | |
5647b8c0 BJ |
105 | int cfnum = -1; |
106 | int cpsize = 10; | |
107 | int cfont = 1; | |
108 | char *bits; | |
109 | int nfontnum = -1; | |
110 | int fontwanted = 1; | |
111 | int npsize = 10; | |
112 | int last_ssize = 02; | |
113 | int xpos, ypos; | |
114 | int esc, lead, back, verd, mcase, railmag; | |
115 | double row, col; | |
116 | char *fontname[MAXF]; | |
117 | char fnbuf[120]; | |
118 | char *scanline; | |
119 | int linecount; | |
120 | ||
121 | char asctab[128] = { | |
122 | '\0', /*blank*/ | |
123 | 'h', /*h*/ | |
124 | 't', /*t*/ | |
125 | 'n', /*n*/ | |
126 | 'm', /*m*/ | |
127 | 'l', /*l*/ | |
128 | 'i', /*i*/ | |
129 | 'z', /*z*/ | |
130 | 's', /*s*/ | |
131 | 'd', /*d*/ | |
132 | 'b', /*b*/ | |
133 | 'x', /*x*/ | |
134 | 'f', /*f*/ | |
135 | 'j', /*j*/ | |
136 | 'u', /*u*/ | |
137 | 'k', /*k*/ | |
138 | '\0', /*blank*/ | |
139 | 'p', /*p*/ | |
140 | '\06', /*_ 3/4 em dash*/ | |
141 | ';', /*;*/ | |
142 | '\0', /*blank*/ | |
143 | 'a', /*a*/ | |
144 | '\05', /*rule*/ | |
145 | 'c', /*c*/ | |
146 | '`', /*` open*/ | |
147 | 'e', /*e*/ | |
148 | '\'', /*' close*/ | |
149 | 'o', /*o*/ | |
150 | '\021', /*1/4*/ | |
151 | 'r', /*r*/ | |
152 | '\022', /*1/2*/ | |
153 | 'v', /*v*/ | |
154 | '-', /*- hyphen*/ | |
155 | 'w', /*w*/ | |
156 | 'q', /*q*/ | |
157 | '/', /*/*/ | |
158 | '.', /*.*/ | |
159 | 'g', /*g*/ | |
160 | '\023', /*3/4*/ | |
161 | ',', /*,*/ | |
162 | '&', /*&*/ | |
163 | 'y', /*y*/ | |
164 | '\0', /*blank*/ | |
165 | '%', /*%*/ | |
166 | '\0', /*blank*/ | |
167 | 'Q', /*Q*/ | |
168 | 'T', /*T*/ | |
169 | 'O', /*O*/ | |
170 | 'H', /*H*/ | |
171 | 'N', /*N*/ | |
172 | 'M', /*M*/ | |
173 | 'L', /*L*/ | |
174 | 'R', /*R*/ | |
175 | 'G', /*G*/ | |
176 | 'I', /*I*/ | |
177 | 'P', /*P*/ | |
178 | 'C', /*C*/ | |
179 | 'V', /*V*/ | |
180 | 'E', /*E*/ | |
181 | 'Z', /*Z*/ | |
182 | 'D', /*D*/ | |
183 | 'B', /*B*/ | |
184 | 'S', /*S*/ | |
185 | 'Y', /*Y*/ | |
186 | '\0', /*blank*/ | |
187 | 'F', /*F*/ | |
188 | 'X', /*X*/ | |
189 | 'A', /*A*/ | |
190 | 'W', /*W*/ | |
191 | 'J', /*J*/ | |
192 | 'U', /*U*/ | |
193 | 'K', /*K*/ | |
194 | '0', /*0*/ | |
195 | '1', /*1*/ | |
196 | '2', /*2*/ | |
197 | '3', /*3*/ | |
198 | '4', /*4*/ | |
199 | '5', /*5*/ | |
200 | '6', /*6*/ | |
201 | '7', /*7*/ | |
202 | '8', /*8*/ | |
203 | '9', /*9*/ | |
204 | '*', /***/ | |
205 | '\04', /*minus*/ | |
206 | '\01', /*fi*/ | |
207 | '\02', /*fl*/ | |
208 | '\03', /*ff*/ | |
209 | '\020', /* cent sign */ | |
210 | '\012', /*ffl*/ | |
211 | '\011', /*ffi*/ | |
212 | '(', /*(*/ | |
213 | ')', /*)*/ | |
214 | '[', /*[*/ | |
215 | ']', /*]*/ | |
216 | '\013', /* degree */ | |
217 | '\014', /* dagger */ | |
218 | '=', /*=*/ | |
219 | '\017', /* registered */ | |
220 | ':', /*:*/ | |
221 | '+', /*+*/ | |
222 | '\0', /*blank*/ | |
223 | '!', /*!*/ | |
224 | '\07', /* bullet */ | |
225 | '?', /*?*/ | |
226 | '\015', /*foot mark*/ | |
227 | '|', /*|*/ | |
228 | '\0', /*blank*/ | |
229 | '\016', /* copyright */ | |
230 | '\010', /* square */ | |
231 | '$', /*$*/ | |
232 | '\0', | |
233 | '\0', | |
234 | '"', /*"*/ | |
235 | '#', /*#*/ | |
236 | '<', /*<*/ | |
237 | '>', /*>*/ | |
238 | '@', /*@*/ | |
239 | '\\', /*\\*/ | |
240 | '^', /*^*/ | |
241 | '{', /*{*/ | |
242 | '}', /*}*/ | |
243 | '~' /*~*/ | |
244 | }; | |
245 | ||
246 | char spectab[128] = { | |
247 | '\0', /*blank*/ | |
248 | 'w', /*psi*/ | |
249 | 'h', /*theta*/ | |
250 | 'm', /*nu*/ | |
251 | 'l', /*mu*/ | |
252 | 'k', /*lambda*/ | |
253 | 'i', /*iota*/ | |
254 | 'f', /*zeta*/ | |
255 | 'r', /*sigma*/ | |
256 | 'd', /*delta*/ | |
257 | 'b', /*beta*/ | |
258 | 'n', /*xi*/ | |
259 | 'g', /*eta*/ | |
260 | 'u', /*phi*/ | |
261 | 't', /*upsilon*/ | |
262 | 'j', /*kappa*/ | |
263 | '\0', /*blank*/ | |
264 | 'p', /*pi*/ | |
265 | '@', /*at-sign*/ | |
266 | '7', /*down arrow*/ | |
267 | '\0', /*blank*/ | |
268 | 'a', /*alpha*/ | |
269 | '|', /*or*/ | |
270 | 'v', /*chi*/ | |
271 | '"', /*"*/ | |
272 | 'e', /*epsilon*/ | |
273 | '=', /*=*/ | |
274 | 'o', /*omicron*/ | |
275 | '4', /*left arrow*/ | |
276 | 'q', /*rho*/ | |
277 | '6', /*up arrow*/ | |
278 | 's', /*tau*/ | |
279 | '_', /*underrule*/ | |
280 | '\\', /*\*/ | |
281 | 'W', /*Psi*/ | |
282 | '\07', /*bell system sign*/ | |
283 | '\001', /*infinity*/ | |
284 | 'c', /*gamma*/ | |
285 | '\002', /*improper superset*/ | |
286 | '\003', /*proportional to*/ | |
287 | '\004', /*right hand*/ | |
288 | 'x', /*omega*/ | |
289 | '\0', /*blank*/ | |
290 | '(', /*gradient*/ | |
291 | '\0', /*blank*/ | |
292 | 'U', /*Phi*/ | |
293 | 'H', /*Theta*/ | |
294 | 'X', /*Omega*/ | |
295 | '\005', /*cup (union)*/ | |
296 | '\006', /*root en*/ | |
297 | '\014', /*terminal sigma*/ | |
298 | 'K', /*Lambda*/ | |
299 | '-', /*minus*/ | |
300 | 'C', /*Gamma*/ | |
301 | '\015', /*integral sign*/ | |
302 | 'P', /*Pi*/ | |
303 | '\032', /*subset of*/ | |
304 | '\033', /*superset of*/ | |
305 | '2', /*approximates*/ | |
306 | 'y', /*partial derivative*/ | |
307 | 'D', /*Delta*/ | |
308 | '\013', /*square root*/ | |
309 | 'R', /*Sigma*/ | |
310 | '1', /*approx =*/ | |
311 | '\0', /*blank*/ | |
312 | '>', /*>*/ | |
313 | 'N', /*Xi*/ | |
314 | '<', /*<*/ | |
315 | '\016', /*slash (longer)*/ | |
316 | '\034', /*cap (intersection)*/ | |
317 | 'T', /*Upsilon*/ | |
318 | '\035', /*not*/ | |
319 | '\023', /*right ceiling (rt of ")*/ | |
320 | '\024', /*left top (of big curly)*/ | |
321 | '\017', /*bold vertical*/ | |
322 | '\030', /*left center of big curly bracket*/ | |
323 | '\025', /*left bottom*/ | |
324 | '\026', /*right top*/ | |
325 | '\031', /*right center of big curly bracket*/ | |
326 | '\027', /*right bot*/ | |
327 | '\021', /*right floor (rb of ")*/ | |
328 | '\020', /*left floor (left bot of big sq bract)*/ | |
329 | '\022', /*left ceiling (lt of ")*/ | |
330 | '*', /*multiply*/ | |
331 | '/', /*divide*/ | |
332 | '\010', /*plus-minus*/ | |
333 | '\011', /*<=*/ | |
334 | '\012', /*>=*/ | |
335 | '0', /*identically equal*/ | |
336 | '3', /*not equal*/ | |
337 | '{', /*{*/ | |
338 | '}', /*}*/ | |
339 | '\'', /*' acute accent*/ | |
340 | '\`', /*` grave accent*/ | |
341 | '^', /*^*/ | |
342 | '#', /*sharp*/ | |
343 | '\036', /*left hand*/ | |
344 | '\037', /*member of*/ | |
345 | '~', /*~*/ | |
346 | 'z', /*empty set*/ | |
347 | '\0', /*blank*/ | |
348 | 'Y', /*dbl dagger*/ | |
349 | 'Z', /*box rule*/ | |
350 | '9', /*asterisk*/ | |
351 | '[', /*improper subset*/ | |
352 | ']', /*circle*/ | |
353 | '\0', /*blank*/ | |
354 | '+', /*eqn plus*/ | |
355 | '5', /*right arrow*/ | |
356 | '8' /*section mark*/ | |
357 | }; | |
358 | ||
5647b8c0 BJ |
359 | main(argc, argv) |
360 | int argc; | |
361 | char *argv[]; | |
362 | { | |
5af70e5e RC |
363 | char *namearg = NULL; |
364 | char *hostarg = NULL; | |
365 | char *acctfile = NULL; | |
366 | ||
5647b8c0 BJ |
367 | while (--argc) { |
368 | if (*(*++argv) == '-') | |
369 | switch (argv[0][1]) { | |
46e69590 RC |
370 | case 'x': |
371 | BYTES_PER_LINE = atoi(&argv[0][2]) / 8; | |
372 | BUFFER_SIZE = NLINES * BYTES_PER_LINE; | |
373 | varian = BYTES_PER_LINE == 264; | |
374 | break; | |
375 | ||
376 | case 'y': | |
377 | PAGE_LINES = atoi(&argv[0][2]); | |
378 | break; | |
5647b8c0 BJ |
379 | |
380 | case 'n': | |
381 | if (argc > 1) { | |
382 | argc--; | |
383 | namearg = *++argv; | |
384 | } | |
385 | break; | |
386 | ||
387 | case 'h': | |
388 | if (argc > 1) { | |
389 | argc--; | |
390 | hostarg = *++argv; | |
391 | } | |
392 | break; | |
5647b8c0 BJ |
393 | } |
394 | else | |
395 | acctfile = *argv; | |
396 | } | |
397 | ioctl(vc, VSETSTATE, pltmode); | |
398 | readrm(); | |
399 | ofile(); | |
400 | ioctl(vc, VSETSTATE, prtmode); | |
401 | if (varian) | |
402 | write(vc, "\f", 2); | |
403 | else | |
404 | write(vc, "\n\n\n\n\n", 6); | |
405 | account(namearg, hostarg, acctfile); | |
406 | exit(0); | |
407 | } | |
408 | ||
409 | readrm() | |
410 | { | |
411 | register int i; | |
412 | register char *cp; | |
413 | register int rmfd; | |
414 | char c; | |
415 | ||
416 | if ((rmfd = open(LOCAL_RAILMAG, 0)) < 0) | |
417 | if ((rmfd = open(GLOBAL_RAILMAG, 0)) < 0) { | |
418 | fprintf(stderr, "vcat: No railmag file\n"); | |
419 | exit(2); | |
420 | } | |
421 | cp = fnbuf; | |
5af70e5e | 422 | for (i = 0; i < MAXF; i++) { |
5647b8c0 BJ |
423 | fontname[i] = cp; |
424 | while (read(rmfd, &c, 1) == 1 && c != '\n') | |
425 | *cp++ = c; | |
426 | *cp++ = '\0'; | |
427 | } | |
428 | close(rmfd); | |
429 | } | |
430 | ||
431 | ofile() | |
432 | { | |
433 | register int c; | |
434 | double scol; | |
435 | static int initialized; | |
436 | ||
437 | lines = 0; | |
438 | while ((c = getchar()) != EOF) { | |
439 | if (!c) | |
440 | continue; | |
441 | if (c & 0200) { | |
442 | esc += (~c) & 0177; | |
443 | continue; | |
444 | } | |
445 | if (esc) { | |
446 | if (back) | |
447 | esc = -esc; | |
448 | col += esc; | |
449 | ypos = CONVERT(col); | |
450 | esc = 0; | |
451 | } | |
452 | if ((c & 0377) < 0100) /* Purely for efficiency */ | |
453 | goto normal_char; | |
454 | switch (c) { | |
455 | ||
456 | case 0100: | |
457 | if (initialized) | |
458 | goto out; | |
459 | initialized = 1; | |
460 | row = 25; | |
461 | xpos = CONVERT(row); | |
462 | for (c = 0; c < BUFFER_SIZE; c++) | |
463 | buffer[c] = 0; | |
464 | col = 0; | |
465 | esc = 0; | |
466 | lead = 0; | |
467 | ypos = 0; | |
468 | linecount = 0; | |
469 | verd = 0; | |
470 | back = 0; | |
471 | mcase = 0; | |
472 | railmag = 0; | |
473 | if (loadfont(railmag, cpsize) < 0) | |
474 | fprintf(stderr, "vcat: Can't load inital font\n"); | |
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 | case 0116: | |
525 | case 0117: | |
526 | break; | |
527 | ||
528 | default: | |
529 | if ((c & 0340) == 0140) /* leading */ { | |
530 | lead = (~c) & 037; | |
531 | if (verd) | |
532 | lead = -lead; | |
533 | row += lead*3; /* Lead is 3 units */ | |
534 | c = CONVERT(row); | |
535 | while (c >= NLINES) { | |
536 | slop_lines(15); | |
537 | c = CONVERT(row); | |
538 | } | |
539 | xpos = c; | |
540 | continue; | |
541 | } | |
542 | if ((c & 0360) == 0120) /* size change */ { | |
543 | loadfont(railmag, findsize(c & 017)); | |
544 | continue; | |
545 | } | |
546 | if (c & 0300) | |
547 | continue; | |
548 | ||
549 | normal_char: | |
550 | c = (c & 077) | mcase; | |
551 | outc(c); | |
552 | } | |
553 | } | |
554 | out: | |
555 | slop_lines(NLINES); | |
556 | } | |
557 | ||
558 | findsize(code) | |
559 | register int code; | |
560 | { | |
561 | register struct point_sizes *psp; | |
562 | ||
563 | psp = point_sizes; | |
564 | while (psp->real_code != 0) { | |
565 | if ((psp->stupid_code & 017) == code) | |
566 | break; | |
567 | psp++; | |
568 | } | |
569 | code = 0; | |
570 | if (!(last_ssize & 0200) && (psp->stupid_code & 0200)) | |
571 | code = -55; | |
572 | else if ((last_ssize & 0200) && !(psp->stupid_code & 0200)) | |
573 | code = 55; | |
574 | if (back) | |
575 | code = -code; | |
576 | esc += code; | |
577 | last_ssize = psp->stupid_code; | |
dfc1084e | 578 | return(psp->real_code); |
5647b8c0 BJ |
579 | } |
580 | ||
581 | account(who, from, acctfile) | |
582 | char *who, *from, *acctfile; | |
583 | { | |
584 | register FILE *a; | |
585 | ||
586 | if (who == NULL || acctfile == NULL) | |
587 | return; | |
588 | if (access(acctfile, 02) || (a = fopen(acctfile, "a")) == NULL) | |
589 | return; | |
590 | /* | |
dfc1084e | 591 | * Varian accounting is done by 8.5 inch pages; |
5647b8c0 BJ |
592 | * Versatec accounting is by the (12 inch) foot. |
593 | */ | |
984a125c | 594 | fprintf(a, "t%6.2f\t", (double)lines / (double)PAGE_LINES); |
5647b8c0 BJ |
595 | if (from != NULL) |
596 | fprintf(a, "%s:", from); | |
597 | fprintf(a, "%s\n", who); | |
598 | fclose(a); | |
599 | } | |
600 | ||
601 | crail(nrail) | |
602 | register int nrail; | |
603 | { | |
604 | register int psize; | |
605 | ||
606 | psize = cpsize; | |
607 | if (fontwanted && psize != npsize) | |
608 | psize = npsize; | |
609 | loadfont(nrail, psize); | |
610 | } | |
611 | ||
612 | ||
613 | loadfont(fnum, size) | |
614 | register int fnum; | |
615 | register int size; | |
616 | { | |
617 | register int i; | |
618 | char cbuf[80]; | |
619 | ||
620 | fontwanted = 0; | |
621 | if (fnum == cfnum && size == cpsize) | |
622 | return(0); | |
623 | for (i = 0; i < NFONTS; i++) | |
624 | if (fontdes[i].fnum == fnum && fontdes[i].psize == size) { | |
625 | cfnum = fontdes[i].fnum; | |
626 | cpsize = fontdes[i].psize; | |
627 | dispatch = &fontdes[i].disp[0]; | |
628 | bits = fontdes[i].bits; | |
629 | cfont = i; | |
dfc1084e | 630 | return(0); |
5647b8c0 BJ |
631 | } |
632 | if (fnum < 0 || fnum >= MAXF) { | |
633 | fprintf(stderr, "vcat: Internal error: illegal font\n"); | |
634 | return(-1); | |
635 | } | |
636 | nfontnum = fnum; | |
637 | npsize = size; | |
638 | fontwanted++; | |
dfc1084e | 639 | return(0); |
5647b8c0 BJ |
640 | } |
641 | ||
642 | ||
643 | getfont() | |
644 | { | |
645 | register int fnum, size, font; | |
646 | int d; | |
647 | char cbuf[BUFSIZ]; | |
648 | ||
649 | if (!fontwanted) | |
650 | return(0); | |
651 | fnum = nfontnum; | |
652 | size = npsize; | |
653 | sprintf(cbuf, "%s.%d", fontname[fnum], size); | |
654 | font = open(cbuf, 0); | |
655 | if (font == -1) { | |
5af70e5e | 656 | fprintf(stderr, "vcat: "); |
5647b8c0 BJ |
657 | perror(cbuf); |
658 | fontwanted = 0; | |
dfc1084e | 659 | return(-1); |
5647b8c0 BJ |
660 | } |
661 | if (read(font, &header, sizeof header)!=sizeof header || header.magic!=0436) | |
662 | fprintf(stderr, "vcat: %s: Bad font file", cbuf); | |
663 | else { | |
664 | cfont = relfont(); | |
665 | if (((bits=nalloc(header.size+DSIZ+1,1))== NULL) | |
666 | && ((bits=allpanic(header.size+DSIZ+1))== NULL)) { | |
667 | fprintf(stderr, "vcat: %s: ran out of memory\n", cbuf); | |
668 | exit(2); | |
669 | } else { | |
670 | /* | |
671 | * have allocated one chunk of mem for font, dispatch. | |
672 | * get the dispatch addr, align to word boundary. | |
673 | */ | |
674 | d = (int) bits+header.size; | |
675 | d += 1; | |
676 | d &= ~1; | |
677 | if (read(font, d, DSIZ)!=DSIZ | |
678 | || read(font, bits, header.size)!=header.size) | |
679 | fprintf(stderr, "vcat: bad font header"); | |
680 | else { | |
681 | close(font); | |
682 | cfnum = fontdes[cfont].fnum = fnum; | |
683 | cpsize = fontdes[cfont].psize = size; | |
684 | fontdes[cfont].bits = bits; | |
685 | fontdes[cfont].disp = (struct dispatch *) d; | |
686 | dispatch = &fontdes[cfont].disp[0]; | |
687 | fontwanted = 0; | |
dfc1084e | 688 | return(0); |
5647b8c0 BJ |
689 | } |
690 | } | |
691 | } | |
692 | close(font); | |
693 | fontwanted = 0; | |
694 | return(-1); | |
695 | } | |
696 | ||
dfc1084e | 697 | int lastloaded = -1; |
5647b8c0 BJ |
698 | |
699 | relfont() | |
700 | { | |
701 | register int newfont; | |
702 | ||
703 | newfont = lastloaded; | |
704 | /* | |
705 | * optimization for special font. since we think that usually | |
706 | * there is only one character at a time from any special math | |
707 | * font, make it the candidate for removal. | |
708 | */ | |
709 | if (fontdes[cfont].fnum != SPECIALFONT || fontdes[cfont].bits==0) | |
710 | if (++newfont>=NFONTS) | |
711 | newfont = 0; | |
712 | lastloaded = newfont; | |
713 | if ((int)fontdes[newfont].bits != -1 && fontdes[newfont].bits != 0) | |
714 | nfree(fontdes[newfont].bits); | |
715 | fontdes[newfont].bits = 0; | |
dfc1084e | 716 | return(newfont); |
5647b8c0 BJ |
717 | } |
718 | ||
719 | char * | |
720 | allpanic(nbytes) | |
721 | int nbytes; | |
722 | { | |
723 | register int i; | |
724 | ||
725 | for (i = 0; i <= NFONTS; i++) | |
726 | if (fontdes[i].bits != (char *)-1 && fontdes[i].bits != (char *)0) | |
727 | nfree(fontdes[i].bits); | |
728 | lastloaded = cfont; | |
729 | for (i = 0; i <= NFONTS; i++) { | |
730 | fontdes[i].fnum = fontdes[i].psize = -1; | |
731 | fontdes[i].bits = 0; | |
732 | cfnum = cpsize = -1; | |
733 | } | |
734 | return(nalloc(nbytes,1)); | |
735 | } | |
736 | ||
737 | int M[] = { 0xffffffff, 0xfefefefe, 0xfcfcfcfc, 0xf8f8f8f8, | |
738 | 0xf0f0f0f0, 0xe0e0e0e0, 0xc0c0c0c0, 0x80808080, 0x0 }; | |
739 | int N[] = { 0x00000000, 0x01010101, 0x03030303, 0x07070707, | |
740 | 0x0f0f0f0f, 0x1f1f1f1f, 0x3f3f3f3f, 0x7f7f7f7f, 0xffffffff }; | |
741 | int strim[] = { 0xffffffff, 0xffffff00, 0xffff0000, 0xff000000, 0 }; | |
742 | ||
743 | outc(code) | |
744 | int code; | |
745 | { | |
746 | char c; /* character to print */ | |
747 | register struct dispatch *d; /* ptr to character font record */ | |
748 | register char *addr; /* addr of font data */ | |
749 | int llen; /* length of each font line */ | |
750 | int nlines; /* number of font lines */ | |
751 | register char *scanp; /* ptr to output buffer */ | |
752 | int scanp_inc; /* increment to start of next buffer */ | |
753 | int offset; /* bit offset to start of font data */ | |
754 | int i; /* loop counter */ | |
755 | register int count; /* font data ptr */ | |
756 | register unsigned fontdata; /* font data temporary */ | |
757 | register int off8; /* offset + 8 */ | |
758 | ||
759 | if (fontwanted) | |
760 | getfont(); | |
761 | if (railmag == SPECIALFONT) { | |
762 | if ((c = spectab[code]) < 0) | |
763 | return(0); | |
764 | } else if ((c = asctab[code]) < 0) | |
765 | return(0); | |
766 | d = dispatch+c; | |
767 | if (d->nbytes) { | |
768 | addr = bits+d->addr; | |
769 | llen = (d->left+d->right+7)/8; | |
770 | nlines = d->up+d->down; | |
771 | if (xpos+d->down >= NLINES) | |
772 | slop_lines(xpos+d->down-NLINES+1); | |
773 | scanp = ((xpos-d->up-1)*BYTES_PER_LINE+(ypos-d->left)/8)+buf0p; | |
774 | if (scanp < &buffer[0]) | |
775 | scanp += BUFFER_SIZE; | |
776 | scanp_inc = BYTES_PER_LINE-llen; | |
777 | offset = -((ypos-d->left)&07); | |
778 | off8 = offset+8; | |
779 | for (i = 0; i < nlines; i++) { | |
780 | if (scanp >= &buffer[BUFFER_SIZE]) | |
781 | scanp -= BUFFER_SIZE; | |
782 | count = llen; | |
783 | if (scanp + count <= &buffer[BUFFER_SIZE]) | |
784 | do { | |
785 | fontdata = *(unsigned *)addr; | |
786 | addr += 4; | |
787 | if (count < 4) | |
788 | fontdata &= ~strim[count]; | |
789 | *(unsigned *)scanp |= (fontdata << offset) &~ M[off8]; | |
790 | scanp++; | |
791 | *(unsigned *)scanp |= (fontdata << off8) &~ N[off8]; | |
792 | scanp += 3; | |
793 | count -= 4; | |
794 | } while (count > 0); | |
795 | scanp += scanp_inc+count; | |
796 | addr += count; | |
797 | } | |
dfc1084e | 798 | return(1); |
5647b8c0 | 799 | } |
dfc1084e | 800 | return(0); |
5647b8c0 BJ |
801 | } |
802 | ||
803 | slop_lines(nlines) | |
804 | int nlines; | |
805 | { | |
806 | register int i, rlines; | |
807 | ||
808 | lines += nlines; | |
809 | rlines = (&buffer[BUFFER_SIZE] - buf0p) / BYTES_PER_LINE; | |
810 | if (rlines < nlines) { | |
811 | if (write(vc, buf0p, BYTES_PER_LINE * rlines) < 0) | |
812 | exit(1); | |
a9d46e9c | 813 | bzero(buf0p, rlines * BYTES_PER_LINE); |
5647b8c0 BJ |
814 | buf0p = buffer; |
815 | nlines -= rlines; | |
816 | xpos -= rlines; | |
817 | row -= RECONVERT(rlines); | |
818 | } | |
819 | if (write(vc, buf0p, BYTES_PER_LINE * nlines) < 0) | |
820 | exit(1); | |
a9d46e9c | 821 | bzero(buf0p, BYTES_PER_LINE * nlines); |
5647b8c0 BJ |
822 | buf0p += BYTES_PER_LINE * nlines; |
823 | if (buf0p >= &buffer[BUFFER_SIZE]) | |
824 | buf0p -= BUFFER_SIZE; | |
825 | xpos -= nlines; | |
826 | row -= RECONVERT(nlines); | |
827 | /* ioctl(vc, VSETSTATE, pltmode); WHY? */ | |
828 | } | |
829 | ||
5647b8c0 BJ |
830 | char * |
831 | nalloc(i, j) | |
832 | int i, j; | |
833 | { | |
834 | register char *cp; | |
835 | ||
836 | cp = calloc(i, j); | |
837 | return(cp); | |
838 | } | |
839 | ||
840 | nfree(cp) | |
841 | char *cp; | |
842 | { | |
843 | free(cp); | |
844 | } |