/* * Copyright (c) 1983 Regents of the University of California. * All rights reserved. The Berkeley software License Agreement * specifies the terms and conditions for redistribution. */ #if !defined(lint) && defined(DOSCCS) static char sccsid[] = "@(#)vcat.c 5.1.1 (2.11BSD) 1996/10/24"; #endif /* * Cat Simulator for Versatec and Varian */ #include #include #include int prtmode[] = {VPRINT}; int pltmode[] = {VPLOT}; #define DISPATCHSIZE 256 /* must be a power of two */ #define CHARMASK (DISPATCHSIZE-1) #define NFONTS 25 #define SPECIALFONT 3 #define DSIZ ((sizeof *dispatch)*DISPATCHSIZE) #define MAXF 4 #define LOCAL_RAILMAG ".railmag" #define GLOBAL_RAILMAG "/usr/share/vfont/railmag" #define CONVERT(n) (n*(200./432.)) #define RECONVERT(n) (n*(432./200.)) #define NLINES 110 char buffer[NLINES * 880]; /* Big enough for versatec */ char *buf0p = &buffer[0]; /* Zero origin in circular buffer */ char *calloc(); char *nalloc(); char *allpanic(); struct header header; struct dispatch *dispatch; struct fontdes { int fnum; int psize; struct dispatch *disp; char *bits; } fontdes[NFONTS] = { -1, -1 }; struct point_sizes { int stupid_code; int real_code; } point_sizes[] = { 010, 6, 0, 7, 01, 8, 07, 9, 02, 10, 03, 11, 04, 12, 05, 14, 0211, 16, 06, 18, 0212, 20, 0213, 22, 0214, 24, 0215, 28, 0216, 36, 0, 0 }; int lines; int vc = 1; /* varian/versatec output file descriptor */ int varian; /* 0 for versatec, 1 for varian. */ int BYTES_PER_LINE = 880; /* number of bytes per raster line. */ int PAGE_LINES = 2400; /* number of raster lines per page. */ int BUFFER_SIZE = NLINES * 880; /* buffer size. */ int cfnum = -1; int cpsize = 10; int cfont = 1; char *bits; int nfontnum = -1; int fontwanted = 1; int npsize = 10; int last_ssize = 02; int xpos, ypos; int esc, lead, back, verd, mcase, railmag; double row, col; char *fontname[MAXF]; char fnbuf[120]; char *scanline; int linecount; char asctab[128] = { '\0', /*blank*/ 'h', /*h*/ 't', /*t*/ 'n', /*n*/ 'm', /*m*/ 'l', /*l*/ 'i', /*i*/ 'z', /*z*/ 's', /*s*/ 'd', /*d*/ 'b', /*b*/ 'x', /*x*/ 'f', /*f*/ 'j', /*j*/ 'u', /*u*/ 'k', /*k*/ '\0', /*blank*/ 'p', /*p*/ '\06', /*_ 3/4 em dash*/ ';', /*;*/ '\0', /*blank*/ 'a', /*a*/ '\05', /*rule*/ 'c', /*c*/ '`', /*` open*/ 'e', /*e*/ '\'', /*' close*/ 'o', /*o*/ '\021', /*1/4*/ 'r', /*r*/ '\022', /*1/2*/ 'v', /*v*/ '-', /*- hyphen*/ 'w', /*w*/ 'q', /*q*/ '/', /*/*/ '.', /*.*/ 'g', /*g*/ '\023', /*3/4*/ ',', /*,*/ '&', /*&*/ 'y', /*y*/ '\0', /*blank*/ '%', /*%*/ '\0', /*blank*/ 'Q', /*Q*/ 'T', /*T*/ 'O', /*O*/ 'H', /*H*/ 'N', /*N*/ 'M', /*M*/ 'L', /*L*/ 'R', /*R*/ 'G', /*G*/ 'I', /*I*/ 'P', /*P*/ 'C', /*C*/ 'V', /*V*/ 'E', /*E*/ 'Z', /*Z*/ 'D', /*D*/ 'B', /*B*/ 'S', /*S*/ 'Y', /*Y*/ '\0', /*blank*/ 'F', /*F*/ 'X', /*X*/ 'A', /*A*/ 'W', /*W*/ 'J', /*J*/ 'U', /*U*/ 'K', /*K*/ '0', /*0*/ '1', /*1*/ '2', /*2*/ '3', /*3*/ '4', /*4*/ '5', /*5*/ '6', /*6*/ '7', /*7*/ '8', /*8*/ '9', /*9*/ '*', /***/ '\04', /*minus*/ '\01', /*fi*/ '\02', /*fl*/ '\03', /*ff*/ '\020', /* cent sign */ '\012', /*ffl*/ '\011', /*ffi*/ '(', /*(*/ ')', /*)*/ '[', /*[*/ ']', /*]*/ '\013', /* degree */ '\014', /* dagger */ '=', /*=*/ '\017', /* registered */ ':', /*:*/ '+', /*+*/ '\0', /*blank*/ '!', /*!*/ '\07', /* bullet */ '?', /*?*/ '\015', /*foot mark*/ '|', /*|*/ '\0', /*blank*/ '\016', /* copyright */ '\010', /* square */ '$', /*$*/ '\0', '\0', '"', /*"*/ '#', /*#*/ '<', /*<*/ '>', /*>*/ '@', /*@*/ '\\', /*\\*/ '^', /*^*/ '{', /*{*/ '}', /*}*/ '~' /*~*/ }; char spectab[128] = { '\0', /*blank*/ 'w', /*psi*/ 'h', /*theta*/ 'm', /*nu*/ 'l', /*mu*/ 'k', /*lambda*/ 'i', /*iota*/ 'f', /*zeta*/ 'r', /*sigma*/ 'd', /*delta*/ 'b', /*beta*/ 'n', /*xi*/ 'g', /*eta*/ 'u', /*phi*/ 't', /*upsilon*/ 'j', /*kappa*/ '\0', /*blank*/ 'p', /*pi*/ '@', /*at-sign*/ '7', /*down arrow*/ '\0', /*blank*/ 'a', /*alpha*/ '|', /*or*/ 'v', /*chi*/ '"', /*"*/ 'e', /*epsilon*/ '=', /*=*/ 'o', /*omicron*/ '4', /*left arrow*/ 'q', /*rho*/ '6', /*up arrow*/ 's', /*tau*/ '_', /*underrule*/ '\\', /*\*/ 'W', /*Psi*/ '\07', /*bell system sign*/ '\001', /*infinity*/ 'c', /*gamma*/ '\002', /*improper superset*/ '\003', /*proportional to*/ '\004', /*right hand*/ 'x', /*omega*/ '\0', /*blank*/ '(', /*gradient*/ '\0', /*blank*/ 'U', /*Phi*/ 'H', /*Theta*/ 'X', /*Omega*/ '\005', /*cup (union)*/ '\006', /*root en*/ '\014', /*terminal sigma*/ 'K', /*Lambda*/ '-', /*minus*/ 'C', /*Gamma*/ '\015', /*integral sign*/ 'P', /*Pi*/ '\032', /*subset of*/ '\033', /*superset of*/ '2', /*approximates*/ 'y', /*partial derivative*/ 'D', /*Delta*/ '\013', /*square root*/ 'R', /*Sigma*/ '1', /*approx =*/ '\0', /*blank*/ '>', /*>*/ 'N', /*Xi*/ '<', /*<*/ '\016', /*slash (longer)*/ '\034', /*cap (intersection)*/ 'T', /*Upsilon*/ '\035', /*not*/ '\023', /*right ceiling (rt of ")*/ '\024', /*left top (of big curly)*/ '\017', /*bold vertical*/ '\030', /*left center of big curly bracket*/ '\025', /*left bottom*/ '\026', /*right top*/ '\031', /*right center of big curly bracket*/ '\027', /*right bot*/ '\021', /*right floor (rb of ")*/ '\020', /*left floor (left bot of big sq bract)*/ '\022', /*left ceiling (lt of ")*/ '*', /*multiply*/ '/', /*divide*/ '\010', /*plus-minus*/ '\011', /*<=*/ '\012', /*>=*/ '0', /*identically equal*/ '3', /*not equal*/ '{', /*{*/ '}', /*}*/ '\'', /*' acute accent*/ '\`', /*` grave accent*/ '^', /*^*/ '#', /*sharp*/ '\036', /*left hand*/ '\037', /*member of*/ '~', /*~*/ 'z', /*empty set*/ '\0', /*blank*/ 'Y', /*dbl dagger*/ 'Z', /*box rule*/ '9', /*asterisk*/ '[', /*improper subset*/ ']', /*circle*/ '\0', /*blank*/ '+', /*eqn plus*/ '5', /*right arrow*/ '8' /*section mark*/ }; main(argc, argv) int argc; char *argv[]; { char *namearg = NULL; char *hostarg = NULL; char *acctfile = NULL; while (--argc) { if (*(*++argv) == '-') switch (argv[0][1]) { case 'x': BYTES_PER_LINE = atoi(&argv[0][2]) / 8; BUFFER_SIZE = NLINES * BYTES_PER_LINE; varian = BYTES_PER_LINE == 264; break; case 'y': PAGE_LINES = atoi(&argv[0][2]); break; case 'n': if (argc > 1) { argc--; namearg = *++argv; } break; case 'h': if (argc > 1) { argc--; hostarg = *++argv; } break; } else acctfile = *argv; } ioctl(vc, VSETSTATE, pltmode); readrm(); ofile(); ioctl(vc, VSETSTATE, prtmode); if (varian) write(vc, "\f", 2); else write(vc, "\n\n\n\n\n", 6); account(namearg, hostarg, acctfile); exit(0); } readrm() { register int i; register char *cp; register int rmfd; char c; if ((rmfd = open(LOCAL_RAILMAG, 0)) < 0) if ((rmfd = open(GLOBAL_RAILMAG, 0)) < 0) { fprintf(stderr, "vcat: No railmag file\n"); exit(2); } cp = fnbuf; for (i = 0; i < MAXF; i++) { fontname[i] = cp; while (read(rmfd, &c, 1) == 1 && c != '\n') *cp++ = c; *cp++ = '\0'; } close(rmfd); } ofile() { register int c; double scol; static int initialized; lines = 0; while ((c = getchar()) != EOF) { if (!c) continue; if (c & 0200) { esc += (~c) & 0177; continue; } if (esc) { if (back) esc = -esc; col += esc; ypos = CONVERT(col); esc = 0; } if ((c & 0377) < 0100) /* Purely for efficiency */ goto normal_char; switch (c) { case 0100: if (initialized) goto out; initialized = 1; row = 25; xpos = CONVERT(row); for (c = 0; c < BUFFER_SIZE; c++) buffer[c] = 0; col = 0; esc = 0; lead = 0; ypos = 0; linecount = 0; verd = 0; back = 0; mcase = 0; railmag = 0; if (loadfont(railmag, cpsize) < 0) fprintf(stderr, "vcat: Can't load inital font\n"); break; case 0101: /* lower rail */ crail(railmag &= ~01); break; case 0102: /* upper rail */ crail(railmag |= 01); break; case 0103: /* upper mag */ crail(railmag |= 02); break; case 0104: /* lower mag */ crail(railmag &= ~02); break; case 0105: /* lower case */ mcase = 0; break; case 0106: /* upper case */ mcase = 0100; break; case 0107: /* escape forward */ back = 0; break; case 0110: /* escape backwards */ back = 1; break; case 0111: /* stop */ break; case 0112: /* lead forward */ verd = 0; break; case 0113: /* undefined */ break; case 0114: /* lead backward */ verd = 1; break; case 0115: /* undefined */ case 0116: case 0117: break; default: if ((c & 0340) == 0140) /* leading */ { lead = (~c) & 037; if (verd) lead = -lead; row += lead*3; /* Lead is 3 units */ c = CONVERT(row); while (c >= NLINES) { slop_lines(15); c = CONVERT(row); } xpos = c; continue; } if ((c & 0360) == 0120) /* size change */ { loadfont(railmag, findsize(c & 017)); continue; } if (c & 0300) continue; normal_char: c = (c & 077) | mcase; outc(c); } } out: slop_lines(NLINES); } findsize(code) register int code; { register struct point_sizes *psp; psp = point_sizes; while (psp->real_code != 0) { if ((psp->stupid_code & 017) == code) break; psp++; } code = 0; if (!(last_ssize & 0200) && (psp->stupid_code & 0200)) code = -55; else if ((last_ssize & 0200) && !(psp->stupid_code & 0200)) code = 55; if (back) code = -code; esc += code; last_ssize = psp->stupid_code; return(psp->real_code); } account(who, from, acctfile) char *who, *from, *acctfile; { register FILE *a; if (who == NULL || acctfile == NULL) return; if (access(acctfile, 02) || (a = fopen(acctfile, "a")) == NULL) return; /* * Varian accounting is done by 8.5 inch pages; * Versatec accounting is by the (12 inch) foot. */ fprintf(a, "t%6.2f\t", (double)lines / (double)PAGE_LINES); if (from != NULL) fprintf(a, "%s:", from); fprintf(a, "%s\n", who); fclose(a); } crail(nrail) register int nrail; { register int psize; psize = cpsize; if (fontwanted && psize != npsize) psize = npsize; loadfont(nrail, psize); } loadfont(fnum, size) register int fnum; register int size; { register int i; char cbuf[80]; fontwanted = 0; if (fnum == cfnum && size == cpsize) return(0); for (i = 0; i < NFONTS; i++) if (fontdes[i].fnum == fnum && fontdes[i].psize == size) { cfnum = fontdes[i].fnum; cpsize = fontdes[i].psize; dispatch = &fontdes[i].disp[0]; bits = fontdes[i].bits; cfont = i; return(0); } if (fnum < 0 || fnum >= MAXF) { fprintf(stderr, "vcat: Internal error: illegal font\n"); return(-1); } nfontnum = fnum; npsize = size; fontwanted++; return(0); } getfont() { register int fnum, size, font; int d; char cbuf[BUFSIZ]; if (!fontwanted) return(0); fnum = nfontnum; size = npsize; sprintf(cbuf, "%s.%d", fontname[fnum], size); font = open(cbuf, 0); if (font == -1) { fprintf(stderr, "vcat: "); perror(cbuf); fontwanted = 0; return(-1); } if (read(font, &header, sizeof header)!=sizeof header || header.magic!=0436) fprintf(stderr, "vcat: %s: Bad font file", cbuf); else { cfont = relfont(); if (((bits=nalloc(header.size+DSIZ+1,1))== NULL) && ((bits=allpanic(header.size+DSIZ+1))== NULL)) { fprintf(stderr, "vcat: %s: ran out of memory\n", cbuf); exit(2); } else { /* * have allocated one chunk of mem for font, dispatch. * get the dispatch addr, align to word boundary. */ d = (int) bits+header.size; d += 1; d &= ~1; if (read(font, d, DSIZ)!=DSIZ || read(font, bits, header.size)!=header.size) fprintf(stderr, "vcat: bad font header"); else { close(font); cfnum = fontdes[cfont].fnum = fnum; cpsize = fontdes[cfont].psize = size; fontdes[cfont].bits = bits; fontdes[cfont].disp = (struct dispatch *) d; dispatch = &fontdes[cfont].disp[0]; fontwanted = 0; return(0); } } } close(font); fontwanted = 0; return(-1); } int lastloaded = -1; relfont() { register int newfont; newfont = lastloaded; /* * optimization for special font. since we think that usually * there is only one character at a time from any special math * font, make it the candidate for removal. */ if (fontdes[cfont].fnum != SPECIALFONT || fontdes[cfont].bits==0) if (++newfont>=NFONTS) newfont = 0; lastloaded = newfont; if ((int)fontdes[newfont].bits != -1 && fontdes[newfont].bits != 0) nfree(fontdes[newfont].bits); fontdes[newfont].bits = 0; return(newfont); } char * allpanic(nbytes) int nbytes; { register int i; for (i = 0; i <= NFONTS; i++) if (fontdes[i].bits != (char *)-1 && fontdes[i].bits != (char *)0) nfree(fontdes[i].bits); lastloaded = cfont; for (i = 0; i <= NFONTS; i++) { fontdes[i].fnum = fontdes[i].psize = -1; fontdes[i].bits = 0; cfnum = cpsize = -1; } return(nalloc(nbytes,1)); } int M[] = { 0xffffffff, 0xfefefefe, 0xfcfcfcfc, 0xf8f8f8f8, 0xf0f0f0f0, 0xe0e0e0e0, 0xc0c0c0c0, 0x80808080, 0x0 }; int N[] = { 0x00000000, 0x01010101, 0x03030303, 0x07070707, 0x0f0f0f0f, 0x1f1f1f1f, 0x3f3f3f3f, 0x7f7f7f7f, 0xffffffff }; int strim[] = { 0xffffffff, 0xffffff00, 0xffff0000, 0xff000000, 0 }; outc(code) int code; { char c; /* character to print */ register struct dispatch *d; /* ptr to character font record */ register char *addr; /* addr of font data */ int llen; /* length of each font line */ int nlines; /* number of font lines */ register char *scanp; /* ptr to output buffer */ int scanp_inc; /* increment to start of next buffer */ int offset; /* bit offset to start of font data */ int i; /* loop counter */ register int count; /* font data ptr */ register unsigned fontdata; /* font data temporary */ register int off8; /* offset + 8 */ if (fontwanted) getfont(); if (railmag == SPECIALFONT) { if ((c = spectab[code]) < 0) return(0); } else if ((c = asctab[code]) < 0) return(0); d = dispatch+c; if (d->nbytes) { addr = bits+d->addr; llen = (d->left+d->right+7)/8; nlines = d->up+d->down; if (xpos+d->down >= NLINES) slop_lines(xpos+d->down-NLINES+1); scanp = ((xpos-d->up-1)*BYTES_PER_LINE+(ypos-d->left)/8)+buf0p; if (scanp < &buffer[0]) scanp += BUFFER_SIZE; scanp_inc = BYTES_PER_LINE-llen; offset = -((ypos-d->left)&07); off8 = offset+8; for (i = 0; i < nlines; i++) { if (scanp >= &buffer[BUFFER_SIZE]) scanp -= BUFFER_SIZE; count = llen; if (scanp + count <= &buffer[BUFFER_SIZE]) do { fontdata = *(unsigned *)addr; addr += 4; if (count < 4) fontdata &= ~strim[count]; *(unsigned *)scanp |= (fontdata << offset) &~ M[off8]; scanp++; *(unsigned *)scanp |= (fontdata << off8) &~ N[off8]; scanp += 3; count -= 4; } while (count > 0); scanp += scanp_inc+count; addr += count; } return(1); } return(0); } slop_lines(nlines) int nlines; { register int i, rlines; lines += nlines; rlines = (&buffer[BUFFER_SIZE] - buf0p) / BYTES_PER_LINE; if (rlines < nlines) { if (write(vc, buf0p, BYTES_PER_LINE * rlines) < 0) exit(1); clear(buf0p, rlines * BYTES_PER_LINE); buf0p = buffer; nlines -= rlines; xpos -= rlines; row -= RECONVERT(rlines); } if (write(vc, buf0p, BYTES_PER_LINE * nlines) < 0) exit(1); clear(buf0p, BYTES_PER_LINE * nlines); buf0p += BYTES_PER_LINE * nlines; if (buf0p >= &buffer[BUFFER_SIZE]) buf0p -= BUFFER_SIZE; xpos -= nlines; row -= RECONVERT(nlines); /* ioctl(vc, VSETSTATE, pltmode); WHY? */ } /*ARGSUSED*/ clear(lp, nbytes) int *lp; int nbytes; { #ifdef vax asm("movc5 $0,(sp),$0,8(ap),*4(ap)"); #else bzero((char *)lp, nbytes); #endif } char * nalloc(i, j) int i, j; { register char *cp; cp = calloc(i, j); return(cp); } nfree(cp) char *cp; { free(cp); }