/* This is the color TeX previewer DVIVGA */ /* (C)opyright 1994 Wolfgang R. Mueller, Computing Centre, Heinrich-Heine-University Duesseldorf, Germany, wolfgang@uni-duesseldorf.de, +49-211-311-3905. This program may be used without any warranty under the terms of the GNU general public licence. */ /* translated from the original TurboPascal source partly with p2c, the Pascal-to-C translator */ #include #ifdef __TURBOC__ #include #include #define malloc farmalloc #define calloc farcalloc #define realloc farrealloc #define free farfree #endif #define uchar unsigned char #define ushort unsigned short #define ulong unsigned long #define ptr void * #define maxink 16 #define inkshift 4 /* maxink == 1<maskc); if (clearing) *(wo +40) &= ~b; else *(wo +40) |= (b & WITH1->maskm); if (clearing) *(wo +80) &= ~b; else *(wo +80) |= (b & WITH1->masky); } static void paxet(y, x, b) ushort y, x; uchar b; { uchar *wo = pxlmem[y] + x; if (clearing) *wo = (*wo * (64 - b)) >> 6; else *wo += ((ushort)b * darkfac) >> inkshift; } static ushort vertfac=7; static void verteil(x, w, y, h, xp, yp, zp) ushort x, w, y, h, *xp, *yp, *zp; { ushort xp1, yp1, zp1, xp2, yp2, zp2, wh, tau; ushort b; if (w + h > 2) { if (w > h) { wh = w >> 1; verteil(x, wh, y, h, &xp1, &yp1, &zp1); verteil(x + wh, w - wh, y, h, &xp2, &yp2, &zp2); } else { wh = h >> 1; verteil(x, w, y, wh, &xp1, &yp1, &zp1); verteil(x, w, y + wh, h - wh, &xp2, &yp2, &zp2); } if (zp2 > zp1) { tau = xp1; xp1 = xp2; xp2 = tau; tau = yp1; yp1 = yp2; yp2 = tau; } *zp = zp1 + zp2; if (*zp < 64) { *xp = xp1; *yp = yp1; return; } pxlmem[xp1][yp1] += 1; *zp -= 64; *xp = xp2; *yp = yp2; return; } *xp = x; *yp = y; b = pxlmem[x][y]; if(b>64) b=64; b*=vertfac; pxlmem[x][y] = b >> 6; *zp = b & 63; } #ifdef __TURBOC__ #include #include #include #define BIOI 0x10 static uchar *vgamem=(uchar *)0xa0000000; static ushort savemode; static void dispinit() { uchar ret, *p; short i; _AX = 0x0f00; geninterrupt(BIOI); ret=_AL; savemode=ret; _AX = 0x1a00; geninterrupt(BIOI); ret=_AL; if(ret != 0x1a) { fprintf(prot, "Only VGA supported !\n"); exit(1); } initpxmem(); vgamem+=80*(480-ym-1); } static void dispopen() { ushort i; uchar *p; /*while(!kbhit()) ;*/ if (alles) { xmax = xm * 8 + 7; ymax = ym * 8 + 7; } else { xmb = xm >> 3; xmax = xm; ymax = ym; } clrpxlmem(); if (alles < 3) return; _AX = 0x12; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x0000; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x0101; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x0202; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x0303; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x0404; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x0505; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x0606; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x0707; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x0708; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x0709; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x070a; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x070b; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x070c; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x070d; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x070e; geninterrupt(BIOI); _AX = 0x1000; _BX = 0x070f; geninterrupt(BIOI); if (vertfac == 7) { _AX = 0x1010; _BX = 0x0000; _CX = 0x3f3f; _DH = 0x3f; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0001; _CX = 0x3636; _DH = 0x36; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0002; _CX = 0x2d2d; _DH = 0x2d; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0003; _CX = 0x2424; _DH = 0x24; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0004; _CX = 0x1b1b; _DH = 0x1b; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0005; _CX = 0x1212; _DH = 0x12; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0006; _CX = 0x0909; _DH = 0x09; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0007; _CX = 0x0000; _DH = 0x00; geninterrupt(BIOI); } else { _AX = 0x1010; _BX = 0x0000; _CX = 0x3f3f; _DH = 0x3f; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0001; _CX = 0x3f00; _DH = 0x3f; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0002; _CX = 0x3f3f; _DH = 0x00; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0003; _CX = 0x3f00; _DH = 0x00; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0004; _CX = 0x003f; _DH = 0x3f; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0005; _CX = 0x0000; _DH = 0x3f; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0006; _CX = 0x003f; _DH = 0x00; geninterrupt(BIOI); _AX = 0x1010; _BX = 0x0007; _CX = 0x0000; _DH = 0x00; geninterrupt(BIOI); } gotoxy(9,1); printf("The HHU TeX colour Previewer (V 94.03) distributed by DANTE e.V."); gotoxy(25,2); printf("supporting \\special{color ...}"); outportb(0x3c4,2); outportb(0x3c5,8); for (i=0, p=vgamem+39; i<=ym; i++, p+=80) *p=0x01; memset(vgamem-80, 0xff, 80); gotoxy(43,4); printf("p(revious page) or backspace"); gotoxy(43,5); printf("n(ext page) or enter or spacebar"); gotoxy(43,6); printf("c(olour) g(rey) q(uit)"); gotoxy(43,8); printf("Moving Magnifying Glass"); gotoxy(43,10); printf("l(eft) r(ight) u(p) d(own)"); gotoxy(43,11); printf(" ALT-ed: small stepsize"); gotoxy(43,12); printf(" unshifted: medium stepsize"); gotoxy(43,13); printf(" shifted: large stepsize"); gotoxy(43,15); printf("cursor keys give medium,"); gotoxy(43,16); printf("CTRL+left/right arrow large,"); gotoxy(43,17); printf("PGUP/PGDOWN large stepsize"); gotoxy(43,19); printf("HOME upper left corner"); gotoxy(43,20); printf("END lower right corner"); gotoxy(43,22); printf("Any of those keys activates"); gotoxy(43,23); printf("the magnifying glass here."); } static uchar shiftab[4]={1,2,4,4}; static void dispcopy() { ushort i, j, k; uchar b, *p, *q, l; if (alles) { if (vertfac == 7) { alles = 0; verteil(0, ym + 1, 0, xm + 1, &i, &j, &k); for (l = 0; l < 3; l++) { outportb(0x3c4,2); outportb(0x3c5,shiftab[l]); for (j = 0; j <= ym; j++) { p = vgamem + j * 80; q = pxlmem[j]; for (k = 0; k <= xm; k++) { if ((k & 7) == 0) b = (*q & 0x01); else { b = (b << 1) | (*q & 0x01); if ((k & 7) == 7) *p++ = b; } *q++ >>=1; } } } } else { switch (alles) { case 3: outportb(0x3c4,2); outportb(0x3c5,2); break; case 2: outportb(0x3c4,2); outportb(0x3c5,4); break; case 1: outportb(0x3c4,2); outportb(0x3c5,1); break; } alles--; verteil(0, ym + 1, 0, xm + 1, &i, &j, &k); for (j = 0; j <= ym; j++) { p = vgamem + j * 80; q = pxlmem[j]; for (k = 0; k <= xm; k++) { if ((k & 7) == 0) b = *q++; else { b = (b << 1) | *q++; if ((k & 7) == 7) *p++ = b; } } } } } else { ushort x1,x2,x,y1,y2,y; outportb(0x3ce,4); outportb(0x3cf,3); outportb(0x3c4,2); outportb(0x3c5,8); x1 = (hoffa + xres) >> 3; x2 = x1 + (xm >> 3); y1 = (voffa + yres) >> 3; y2 = y1 + (ym >> 3); for (x=x1; x<=x2; x++) for (y=y1; y<=y2; y++) if ((x==x1)||(x==x2)||(y==y1)||(y==y2)) vgamem[y*80+(x>>3)] &= 0xff7f >> (x & 7); hoffa = hoff; voffa = voff; x1 = (hoffa + xres) >> 3; x2 = x1 + (xm >> 3); y1 = (voffa + yres) >> 3; y2 = y1 + (ym >> 3); for (x=x1; x<=x2; x++) for (y=y1; y<=y2; y++) if ((x==x1)||(x==x2)||(y==y1)||(y==y2)) vgamem[y*80+(x>>3)] |= 0x0080 >> (x & 7); outportb(0x3c4,2); outportb(0x3c5,2); for (j = 0, p = vgamem + 40; j <= ym; j++, p += 80) memcpy(p, pxlmem[j] , 40); outportb(0x3c4,2); outportb(0x3c5,4); for (j = 0, p = vgamem + 40; j <= ym; j++, p += 80) memcpy(p, pxlmem[j] + 40, 40); outportb(0x3c4,2); outportb(0x3c5,1); for (j = 0, p = vgamem + 40; j <= ym; j++, p += 80) memcpy(p, pxlmem[j] + 80, 40); } } static void dispclos() { _AX = savemode; geninterrupt(BIOI); } static char evalkbd() { char np=0; while (! kbhit()) ; hoff += xres; voff += yres; while (kbhit()) { switch (getch()) { case 'h': case 'H': hoff=0; voff=0; break; case 'u': voff-=64; break; case 'U': voff-=256; break; case 'd': voff+=64; break; case 'D': voff+=256; break; case 'l': hoff-=64; break; case 'L': hoff-=256; break; case 'r': hoff+=64; break; case 'R': hoff+=256; break; case 'q': case 'Q': fini=1; break; case 'n': case 'N': case 13: case ' ': np=1; break; case 'p': case 'P': case 8: np=-1; break; case 'c': vertfac=1; alles=3; break; case 'g': vertfac=7; alles=3; break; case 0: switch (getch()) { case 19: hoff+=8; break; case 22: voff-=8; break; case 32: voff+=8; break; case 38: hoff-=8; break; case 71: hoff=0; voff=0; break; case 72: voff-=64; break; case 73: voff-=256; break; case 75: hoff-=64; break; case 77: hoff+=64; break; case 79: hoff=xm << 3; voff=ym << 3; break; case 80: voff+=64; break; case 81: voff+=256; break; case 115: hoff-=256; break; case 116: hoff+=256; break; } break; } } if (hoff<0) hoff=0; if (hoff>xm*7-1) hoff=xm*7-1; hoff -= xres; if (voff<0) voff=0; if (voff>ym*7+7) voff=ym*7+7; voff -= yres; return(np); } #endif static void setrect(xl, yl, xh, yh) ushort xl, yl, xh, yh; { ushort x, y, xll, xrr; uchar a, b, c; xll = xl >> 3; xrr = xh >> 3; a = (0xff >> (xl & 7)) & 255; c = 0xff << (7 - (xh & 7)); for (y = yl; y <= yh; y++) { b = a; for (x = xll; x <= xrr; x++) { if (x == xrr) b &= c; pixet(y, x, b); b = 0xff; } } } static void setract(xl, yl, xh, yh) ushort xl, yl, xh, yh; { ushort xlb, xhb, ylb, yhb, x, y; uchar xf, yf; xlb = xl >> 3; xhb = xh >> 3; ylb = yl >> 3; yhb = yh >> 3; if (xlb == xhb) { xf = xh - xl + 1; if (ylb == yhb) { paxet(ylb, xlb, xf * (yh - yl + 1)); } else { paxet(ylb, xlb, xf * (8 - (yl & 7))); paxet(yhb, xlb, xf * ((yh & 7) + 1)); for (y = ylb + 1; y < yhb; y++) paxet(y, xlb, xf * 8); } } else if (ylb == yhb) { yf = yh - yl + 1; paxet(ylb, xlb, yf * (8 - (xl & 7))); paxet(ylb, xhb, yf * ((xh & 7) + 1)); for (x = xlb + 1; x < xhb; x++) paxet(ylb, x, yf * 8); } else { xf = 8 - (xl & 7); for (x = xlb; x <= xhb; x++) { yf = 8 - (yl & 7); if (x == xhb) xf = (xh & 7) + 1; for (y = ylb; y <= yhb; y++) { if (y == yhb) yf = (yh & 7) + 1; paxet(y, x, xf * yf); yf = 8; } xf = 8; } } } static char dviname[73]; static FILE *dvifile; static long dvimag; static uchar dvibuf[2048]; static ushort dvibufp, dvibufe; static void baddvi(s) char *s; { fprintf(prot, "bad dvi: %s\n", s); dispclos(); exit(1); } static void dvibytes(s, l) char *s; uchar l; { ushort ll; s[l] = '\0'; ll = dvibufe - dvibufp; if (ll >= l) { memmove((ptr)s, (ptr)(&dvibuf[dvibufp]), (long)l); dvibufp += l; return; } if (ll > 0) memmove((ptr)s, (ptr)(&dvibuf[dvibufp]), (long)ll); dvibufe = fread(dvibuf, 1, 2048, dvifile); if (dvibufe + ll < l) baddvi("ends prematurely !"); memmove((ptr)(&s[ll]), (ptr)dvibuf, (long)(l - ll)); dvibufp = l - ll; } static uchar dvibyte() { uchar b; if (dvibufp >= dvibufe) { dvibufp = 0; dvibufe = fread(dvibuf, 1, 2048, dvifile); } if (dvibufp >= dvibufe) baddvi("ends prematurely !"); b = dvibuf[dvibufp]; dvibufp++; return b; } static void dviskip(l) long l; { uchar b; while (l > 0) { l += (long)dvibufp - (long)dvibufe; if (l <= 0) dvibufp = dvibufe + l; else { dvibufp = dvibufe; l--; dvibyte(); } } } static long dvinum(b) uchar b; { uchar i; long n; n = 0; if (dvibufp + b > dvibufe) { for (i = 1; i <= b; i++) n = (n << 8) | dvibyte(); return n; } for (i = 0; i < b; i++) n = (n << 8) | dvibuf[dvibufp + i]; dvibufp += b; return n; } static long dviint(b) uchar b; { uchar i; long n; if (dvibufp + b <= dvibufe) { n = dvibuf[dvibufp]; if (n > 127) n -= 256; for (i = 1; i < b; i++) n = (n << 8) | dvibuf[dvibufp + i]; dvibufp += b; return n; } n = dvibyte(); if (n > 127) n -= 256; for (i = 2; i <= b; i++) n = (n << 8) | dvibyte(); return n; } static void dviposit(l) long l; { fseek(dvifile, l, 0); dvibufe = fread(dvibuf, 1, 2048, dvifile); dvibufp = 0; } static void dviopen() { long l; uchar j, em; ushort k; sprintf(STR, "%s.dvi", dviname); if ((dvifile = fopen(STR, "rb"))==0) { strcpy(STR, dviname); if ((dvifile = fopen(STR, "rb"))==0) baddvi("not existing !"); } dvibufe = fread(dvibuf, 1, 2, dvifile); if (dvibufe < 2) baddvi("empty !"); em = dvibuf[1]; if (dvibuf[0] != 247) baddvi("no valid preamble"); /* now position to postamble */ fseek(dvifile, 0L, 2); l=ftell(dvifile); if(l>2048) l=2048; fseek(dvifile, -l, 2); k = fread(dvibuf, 1, 2048, dvifile); do { k--; } while (k >= 4 && dvibuf[k] != em); if (k < 4) baddvi("no postamble in last 2048 bytes !"); dvibufe = k + 1; dvibufp = k - 4; l = dvinum(4); fseek(dvifile, l, 0); dvibufe = fread(dvibuf, 1, 2048, dvifile); dvibufp = 0; dvibyte(); } typedef union chdesc { uchar b8[16]; struct { short wid, hei, hof, vof; long bmp, tfw; } U1; struct { long tfh, tfd, dum1, dum2; } U2; } chdesc; typedef struct fontdesc { long dfn; char *fonam; chdesc *chv; long danf; uchar *chm; short mch, fty; } fontdesc; static fontdesc **fontvect; static uchar fontint; static FILE *fofil; static uchar *achm, *pkbuf; static uchar fofbyte() { uchar b; if (fread(&b, 1, 1, fofil) <= 0) b = 0; return b; } static long fofint(b) uchar b; { uchar i; long n; n = fofbyte(); if (n > 127) n -= 256; for (i = 2; i <= b; i++) n = (n << 8) | fofbyte(); return n; } static long hs[smax], vs[smax], ws[smax], xs[smax], ys[smax], zs[smax]; static long cnt[10]; static uchar bitrev[256]; static char comment[256]; static double conv, vconv; static long l, landx, landy, newmag; static long a, b, c, f, q, h, v, w, x, y, z; static long chk, scf, dsz, fofchk, num, den, mag, spl, lpp, mxh, mxv; static int pagnum, pag1, paganz, i, k; static ushort s, mst, mpn; static char dviori; static uchar o, j, post, started, below; static void initbitrev() { uchar b, i, j, k, m, n; for (i = 0; i <= maxink; i++) { for (j = 0; j <= 3; j++) { b = 0; for (k = 0; k <= 3; k++) { if (maskmat[j][k] <= i) b |= maskmat[4][k]; } maskb[i][j] = b; } } cb[0] = 0; bitrev[0] = 0; m = 0x80; n = 1; while (m) { /* count bits / put bits into reverse order within a byte */ for (j = 0; j < n; j++) { cb[j + n] = cb[j] + 1; bitrev[j + n] = bitrev[j] | m; } n += n; m >>= 1; } } /*static long prodovz(a, b) ushort a, b; { return ((long)a * (long)b); } static long scaled(w) long w; { long s; union { long l; struct { ushort n, h; } U1; } a, b; a.l = w; b.l = scf; s = (((((ulong)prodovz(a.U1.n, b.U1.n)) >> 16) + prodovz(a.U1.n, b.U1.h) + prodovz(a.U1.h, b.U1.n)) >> 4) + (prodovz(a.U1.h, b.U1.h) << 12); if (w < 0) s -= scf << 12; return s; }*/ static long scaled(w) long w; { long s; ulong t=w, u=scf; /* should return w * scf / 2**20 */ s = ( ( (((t & 65535L) * (u & 65535L)) >> 16) + (t & 65535L) * (u >> 16) + (t >> 16) * (u & 65535L) ) >> 4) + ( ( (t >> 16) * (u >> 16) ) << 12); if (w < 0) s -= scf << 12; return s; } static void tfmdef() { short ll, lh, bc, ec, nw, nh, nd, i; uchar b1, b2, b3; short FORLIM; fontdesc *WITH = fontvect[fontint]; sprintf(STR, "%s%s.tfm", tfmprefix, FONAM); fprintf(prot, "trying %s instead", STR); fofil = fopen(STR, "rb"); if (fofil==0) { fprintf(prot, " - absent as well :-(\n"); return; } ll = fofint(2); lh = fofint(2); bc = fofint(2); ec = fofint(2); nw = fofint(2); nh = fofint(2); nd = fofint(2); fseek(fofil, 0L, 2); if (ll * 4 > ftell(fofil) || ll < lh + ec - bc + nw + nh + nd + 7) { fprintf(prot, " - not a TFMfile !\n"); fclose(fofil); return; } WITH->mch = ec; Tptr( WITH->chv = (chdesc *)calloc(WITH->mch + 1, sizeof(chdesc)) ); fseek(fofil, 24L, 0); fofchk = fofint(4); if (chk != 0) if (fofchk != 0) if (chk != fofchk) fprintf(prot, " *+* wrong checksum *+* "); fseek(fofil, (lh + ec - bc + 7L) * 4, 0); FORLIM = nw + nh + nd; for (i = 0; i < FORLIM; i++) WITH->chv[i].U2.dum1 = scaled(fofint(4)); fseek(fofil, lh * 4L + 24, 0); for (i = bc; i <= ec; i++) { b1 = fofbyte(); b2 = fofbyte(); fofbyte(); fofbyte(); WITH->chv[i].U1.tfw = WITH->chv[b1].U2.dum1; WITH->chv[i].U2.tfh = WITH->chv[nw + (b2 >> 4)].U2.dum1; WITH->chv[i].U2.tfd = WITH->chv[nw + nh + (b2 & 15)].U2.dum1; } fclose(fofil); WITH->fty = 1; fprintf(prot, " - TFMfile OK\n"); } static void tfmchar() { short hr, vr, br, ar; uchar li, re, ob, un; chdesc *WITH = &fontvect[fontint]->chv[c]; switch (dviori) { case 0: hr = (short)(conv * h + 0.5)-hoff; vr = (short)(vconv * (v - WITH->U2.tfh) + 0.5)-voff; br = (short)(conv * (h + WITH->U1.tfw) + 0.5)-hoff; ar = (short)(vconv * (v + WITH->U2.tfd) + 0.5)-voff; break; case 1: hr = (short)(conv * (landx + v - WITH->U2.tfh) + 0.5)-hoff; vr = (short)(vconv * (landy - h - WITH->U1.tfw) + 0.5)-voff; br = (short)(conv * (landx + v + WITH->U2.tfd) + 0.5)-hoff; ar = (short)(vconv * (landy - h) + 0.5)-voff; break; case 3: hr = (short)(conv * (landx - v - WITH->U2.tfd) + 0.5)-hoff; vr = (short)(vconv * (landy + h) + 0.5)-voff; br = (short)(conv * (landx - v + WITH->U2.tfh) + 0.5)-hoff; ar = (short)(vconv * (landy + h + WITH->U1.tfw) + 0.5)-voff; break; case 2: hr = (short)(conv * (landx - h - WITH->U1.tfw) + 0.5)-hoff; vr = (short)(vconv * (landy - v - WITH->U2.tfd) + 0.5)-voff; br = (short)(conv * (landx - h) + 0.5)-hoff; ar = (short)(vconv * (landy - v + WITH->U2.tfh) + 0.5)-voff; break; } li = 1; re = 1; ob = 1; un = 1; if (hr < 0) { hr = 0; li = 0; } if (br > xmax) { br = xmax; re = 0; } if (vr < 0) { vr = 0; ob = 0; } if (ar > ymax) { ar = ymax; un = 0; below = 1; } if (hr > br) return; if (vr > ar) return; if (ob) setrect(hr, vr, br, vr); if (li) setrect(hr, vr, hr, ar); if (un) setrect(hr, ar, br, ar); if (re) setrect(br, vr, br, ar); } static void drawract(xl, yl, xh, yh) ushort xl, yl, xh, yh; { ushort xlb, xhb, ylb, yhb, x, y; uchar xf, yf; xlb = xl >> 3; xhb = xh >> 3; ylb = yl >> 3; yhb = yh >> 3; if (xlb == xhb) { xf = xh - xl; if (ylb == yhb) { paxet(ylb, xlb, (xf + yh - yl) << 1); } else { paxet(ylb, xlb, xf - ((yl & 7) << 1) + 15); paxet(yhb, xlb, xf + ((yh & 7) << 1) + 1); for (y = ylb + 1; y < yhb; y++) paxet(y, xlb, maxink); return; } } else if (ylb == yhb) { yf = yh - yl; paxet(ylb, xlb, yf - ((xl & 7) << 1) + 15); paxet(ylb, xhb, yf + ((xh & 7) << 1) + 1); for (x = xlb + 1; x < xhb; x++) paxet(ylb, x, maxink); return; } else { for (x = xlb + 1; x < xhb; x++) { paxet(ylb, x, 8); paxet(yhb, x, 8); } for (y = ylb + 1; y < yhb; y++) { paxet(y, xlb, 8); paxet(y, xhb, 8); } paxet(ylb, xlb, 15 - (yl & 7) - (xl & 7)); paxet(ylb, xhb, (xh & 7) - (yl & 7) + 8); paxet(yhb, xlb, (yh & 7) - (xl & 7) + 8); paxet(yhb, xhb, (xh & 7) + (yh & 7) + 1); } } static void tfmcher() { short hr, vr, br, ar; chdesc *WITH = &fontvect[fontint]->chv[c]; switch (dviori) { case 0: hr = (short)(conv * h + 0.5); vr = (short)(vconv * (v - WITH->U2.tfh) + 0.5); br = (short)(conv * (h + WITH->U1.tfw) + 0.5); ar = (short)(vconv * (v + WITH->U2.tfd) + 0.5); break; case 1: hr = (short)(conv * (landx + v - WITH->U2.tfh) + 0.5); vr = (short)(vconv * (landy - h - WITH->U1.tfw) + 0.5); br = (short)(conv * (landx + v + WITH->U2.tfd) + 0.5); ar = (short)(vconv * (landy - h) + 0.5); break; case 3: hr = (short)(conv * (landx - v - WITH->U2.tfd) + 0.5); vr = (short)(vconv * (landy + h) + 0.5); br = (short)(conv * (landx - v + WITH->U2.tfh) + 0.5); ar = (short)(vconv * (landy + h + WITH->U1.tfw) + 0.5); break; case 2: hr = (short)(conv * (landx - h - WITH->U1.tfw) + 0.5); vr = (short)(vconv * (landy - v - WITH->U2.tfd) + 0.5); br = (short)(conv * (landx - h) + 0.5); ar = (short)(vconv * (landy - v + WITH->U2.tfh) + 0.5); break; } if (hr < 0) hr = 0; if (br > xmax) br = xmax; if (vr < 0) vr = 0; if (ar > ymax) ar = ymax; if (hr <= br) if (vr <= ar) drawract(hr, vr, br, ar); } #define PKN1 *achm++ static short pki1() { short b; b = PKN1; if (b > 127) b -= 256; return b; } static short pkn2() { short b; b = PKN1; return (b * 256 + PKN1); } static short pki2() { short b; b = PKN1; if (b > 127) b -= 256; return (b * 256 + PKN1); } static long pkn3() { long b; short c; b = PKN1; c = PKN1; return ((b * 256 + c) * 256 + PKN1); } static long pki3() { long b; b = pki1(); return (b * 65536L + pkn2()); } static long pki4() { long b; b = pki2(); return (b * 65536L + pkn2()); } static void pkdef() { long a, l; ushort d; uchar b, bb; uchar terminate; short i, j, c; fontdesc *WITH; chdesc *WITH1; WITH = fontvect[fontint]; sprintf(STR, "%spk", FOFUL); fprintf(prot,"preparing font %ld: %s", f, STR); if( (fofil = fopen(STR, "rb"))==0) { fprintf(prot," not found :-(\n"); sprintf(STR, "%spk", FOLOC); fprintf(prot,"preparing font %ld: %s", f, STR); fofil = fopen(STR, "rb"); } if (fofil==0) { WITH->mch = -1; fprintf(prot, " - file not found !\n"); return; } if ((fgetc(fofil)!=0xf7)||(fgetc(fofil)!=0x59)){ WITH->mch = -1; fprintf(prot, " - not a PKfile !\n"); fclose(fofil); return; } else { fseek(fofil, 0L, 2); WITH->danf = ftell(fofil); if (WITH->danf > 65520L) { WITH->mch = -1; fclose(fofil); fprintf(prot, " - too big for this driver\n"); return; } else { Tptr( WITH->chv = (chdesc *)calloc(256, sizeof(chdesc)) ); Tptr( pkbuf = (uchar *)malloc(WITH->danf) ); fseek(fofil, 0L, 0); fread(pkbuf, WITH->danf, 1, fofil); fclose(fofil); WITH->mch = -1; achm=pkbuf; terminate = 0; do { b = PKN1; if (b >= 240) { switch (b) { case 240: case 241: case 242: case 243: l = 0; for (i = 240; i <= b; i++) l = (l << 8) + PKN1; achm += l; break; case 244: achm += 4; break; case 245: terminate = 1; break; case 246: break; case 247: b = PKN1; i = PKN1; achm += i + 4; fofchk = pki4(); if (chk != 0) if (fofchk != 0) if (chk != fofchk) fprintf(prot, " *+* wrong checksum *+* "); achm += 8; break; case 248: case 249: case 250: case 251: case 252: case 253: case 254: case 255: break; } } else { d = (achm - pkbuf) - 1; bb = b & 7; switch (bb) { case 0: case 1: case 2: case 3: l = bb * 256 + PKN1 - 8; c = PKN1; break; case 4: case 5: case 6: l = bb - 4; l = (l << 16) + pkn2() - 13; c = PKN1; break; case 7: l = pki4() - 28; c = pki4(); break; } WITH1 = &WITH->chv[c]; switch (bb) { case 0: case 1: case 2: case 3: WITH1->U1.tfw = scaled(pkn3()); PKN1; WITH1->U1.wid = PKN1; WITH1->U1.hei = PKN1; WITH1->U1.hof = pki1(); WITH1->U1.vof = pki1(); break; case 4: case 5: case 6: WITH1->U1.tfw = scaled(pkn3()); pkn2(); WITH1->U1.wid = pkn2(); WITH1->U1.hei = pkn2(); WITH1->U1.hof = pki2(); WITH1->U1.vof = pki2(); break; case 7: WITH1->U1.tfw = scaled(pki4()); pki4(); pki4(); WITH1->U1.wid = pki4(); WITH1->U1.hei = pki4(); WITH1->U1.hof = pki4(); WITH1->U1.vof = pki4(); break; } achm += l; if ((unsigned)c <= 255) { if (WITH->mch < c) WITH->mch = c; WITH->chv[c].U1.bmp = d; } } } while (!terminate); free(pkbuf); if (WITH->mch < 0) fprintf(prot, " - PKfile in error !\n"); else fprintf(prot, " - available\n"); WITH->chv = (chdesc *) realloc(WITH->chv, 16*(WITH->mch + 1)); Tptr( WITH->fonam = (char *) malloc(strlen(STR)+1) ); strcpy(WITH->fonam, STR); } } } static struct { long repc, count; short xs, wid1, dynf, dyng, dynh; ushort d; uchar db, white, bmerk, buf[ym + 1]; } Lpkc; static uchar pknib() { uchar Result; if (Lpkc.bmerk != 0) { Result = Lpkc.bmerk & 0xf; Lpkc.bmerk = 0; return Result; } Lpkc.bmerk = PKN1; Result = Lpkc.bmerk >> 4; Lpkc.bmerk |= 0xf0; return Result; } static long pknum() { uchar i, j, k; long n; k = 1; do { i = pknib(); k++; if (i == 0) { do { j = pknib(); i++; } while (j == 0); n = j; while (i > 0) { i--; n = (n << 4) + pknib(); } n += Lpkc.dyng; } else if (i <= Lpkc.dynf) n = i; else if (i < 14) n = (i << 4) + pknib() + Lpkc.dynh; else if (i == 14) k = 0; else { k = 1; n = 1; } if (k == 1) Lpkc.repc = n; } while (k != 2); return n; } static void pkline() { short j, x=0; uchar dd; if (Lpkc.dynf == 14) { j = Lpkc.wid1 + Lpkc.xs; Lpkc.db += Lpkc.xs; do { if (Lpkc.db < 8) Lpkc.d = (Lpkc.d << 8) | PKN1; else Lpkc.db -= 8; dd = (Lpkc.d >> Lpkc.db) & 255; if (j >= 8) { j -= 8; Lpkc.buf[x] = dd; } else { Lpkc.db += 8 - j; Lpkc.buf[x] = dd & (0xff00L >> j) & 255; j = 0; } x++; } while (j != 0); Lpkc.d &= 0xffffL >> (16 - Lpkc.db); return; } j = Lpkc.wid1; Lpkc.db = 8 - Lpkc.xs; Lpkc.d = 0; if (Lpkc.repc > 0) { Lpkc.repc--; return; } while (j > 0) { if (Lpkc.count == 0) { Lpkc.count = pknum(); Lpkc.white = !Lpkc.white; } dd = Lpkc.db; if (dd > j) dd = j; if (dd > Lpkc.count) dd = Lpkc.count; if (Lpkc.white) Lpkc.db -= dd; else { Lpkc.d += 1 << Lpkc.db; Lpkc.db -= dd; Lpkc.d -= 1 << Lpkc.db; } Lpkc.count -= dd; j -= dd; if (Lpkc.db == 0 || j == 0) { Lpkc.buf[x] = Lpkc.d & 255; x++; Lpkc.d = 0; Lpkc.db = 8; } } } static void pkchar() { short hr, vr; long bma, bmx; short x, x1, x2, x3, y1, y2, y; uchar b, bb, mach, mac, mpm, bach; fontdesc *WITH; chdesc *WITH1; WITH = fontvect[fontint]; WITH1 = &WITH->chv[c]; achm += WITH1->U1.bmp; b = PKN1; Lpkc.white = ((b & 8) == 0); Lpkc.wid1 = WITH1->U1.wid; Lpkc.dynf = b >> 4; Lpkc.dyng = (13 - Lpkc.dynf) * 16 + Lpkc.dynf - 15; Lpkc.dynh = -(Lpkc.dynf + 1) * 15; bb = b & 7; switch (bb) { case 0: case 1: case 2: case 3: achm += 10; break; case 4: case 5: case 6: achm += 16; break; case 7: achm += 36; break; } Lpkc.bmerk = 0; Lpkc.d = 0; Lpkc.db = 0; Lpkc.repc = 0; Lpkc.count = 0; Lpkc.white = !Lpkc.white; switch (dviori) { case 0: hr = (short)(conv * h + 0.5) - WITH1->U1.hof-hoff; vr = (short)(vconv * v + 0.5) - WITH1->U1.vof-voff; if (vr > ymax) below = 1; else { if (vr + WITH1->U1.hei >= 1) { x1 = (hr & -8L) / 8; x2 = ((hr + WITH1->U1.wid - 1) & -8L) / 8; Lpkc.xs = hr & 7; y2 = vr + WITH1->U1.hei - 1; if (y2 > ymax) { y2 = ymax; below = 1; } x3 = x1; if (x3 < 0) x3 = 0; if (x2 > xmb) x2 = xmb; if (x3 <= x2) { for (y = vr; y <= y2; y++) { pkline(); if (y >= 0) { for (x = x3; x <= x2; x++) pixet(y, x, Lpkc.buf[x-x1]); } } } } } break; case 1: hr = (short)(conv * (landx + v) + 0.5) - WITH1->U1.vof-hoff; vr = (short)(vconv * (landy - h) + 0.5) + WITH1->U1.hof-voff; if (vr - WITH1->U1.wid + 1 > ymax) below = 1; else { if (vr >= 0) { Lpkc.xs = 0; mac = 0x80; bma = 0; y1 = vr; if (y1 > ymax) { below = 1; bma += ((ulong)(y1 - ymax)) >> 3; mac = 0x80 >> ((y1 - ymax) & 7); y1 = ymax; } y2 = vr - WITH1->U1.wid + 1; if (y2 < 0) y2 = 0; x2 = hr + WITH1->U1.hei - 1; if (x2 > xmax) x2 = xmax; for (x3 = hr; x3 <= x2; x3++) { pkline(); if (x3 >= 0) { mach = mac; x = ((unsigned)x3) >> 3; mpm = 0x80 >> (x3 & 7); bmx = bma; bach = Lpkc.buf[bmx]; for (y = y1; y >= y2; y--) { if ((bach & mach) != 0) pixet(y, x, mpm); mach >>= 1; if (mach == 0) { mach = 0x80; bmx++; bach = Lpkc.buf[bmx]; } } } } } } break; case 3: hr = (short)(conv * (landx - v) + 0.5) + WITH1->U1.vof-hoff; vr = (short)(vconv * (landy + h) + 0.5) - WITH1->U1.hof-voff; if (vr > ymax) below = 1; else { if (vr + WITH1->U1.wid >= 1) { Lpkc.xs = 0; mac = 0x80; bma = 0; y1 = vr; if (y1 < 0) { bma += ((unsigned)(-y1)) >> 3; mac = 0x80 >> ((-y1) & 7); y1 = 0; } y2 = vr + WITH1->U1.wid - 1; if (y2 > ymax) { y2 = ymax; below = 1; } x2 = hr - WITH1->U1.hei + 1; if (x2 < 0) x2 = 0; for (x3 = hr; x3 >= x2; x3--) { pkline(); if (x3 <= xmax) { mach = mac; x = ((unsigned)x3) >> 3; mpm = 0x80 >> (x3 & 7); bmx = bma; bach = Lpkc.buf[bmx]; for (y = y1; y <= y2; y++) { if ((bach & mach) != 0) pixet(y, x, mpm); mach >>= 1; if (mach == 0) { mach = 0x80; bmx++; bach = Lpkc.buf[bmx]; } } } } } } break; case 2: hr = (short)(conv * (landx - h) + 0.5) + WITH1->U1.hof-hoff; vr = (short)(vconv * (landy - v) + 0.5) + WITH1->U1.vof-hoff; if (vr - WITH1->U1.hei + 1 > ymax) below = 1; else { if (vr >= 0) { x1 = (hr & -8L) / 8; x2 = ((hr - WITH1->U1.wid + 1) & -8L) / 8; Lpkc.xs = (7 - hr) & 7; y2 = vr - WITH1->U1.hei + 1; if (y2 < 0) y2 = 0; if (vr > ymax) below = 1; if (x2 < 0) x2 = 0; x3 = x1; if (x3 > xmb) x3 = xmb; if (x2 <= x3) { for (y = vr; y >= y2; y--) { pkline(); if (y <= ymax) { for (x = x3; x >= x2; x--) pixet(y, x, bitrev[Lpkc.buf[x1 - x]]); } } } } } break; } } static void pklene() { short j; uchar dd; short s = 0; if (Lpkc.dynf == 14) { j = Lpkc.wid1 + Lpkc.xs; Lpkc.db += Lpkc.xs; do { if (Lpkc.db < 8) Lpkc.d = (Lpkc.d << 8) | PKN1; else Lpkc.db -= 8; dd = (Lpkc.d >> Lpkc.db) & 255; if (j >= 8) { j -= 8; Lpkc.buf[s] = cb[dd]; } else { Lpkc.db += 8 - j; Lpkc.buf[s] = cb[dd & (0xff00L >> j) & 255]; j = 0; } s++; } while (j != 0); Lpkc.d &= 0xffffL >> (16 - Lpkc.db); return; } j = Lpkc.wid1; Lpkc.db = 8 - Lpkc.xs; Lpkc.d = 0; if (Lpkc.repc > 0) { Lpkc.repc--; return; } while (j > 0) { if (Lpkc.count == 0) { Lpkc.count = pknum(); Lpkc.white = !Lpkc.white; } dd = Lpkc.db; if (dd > j) dd = j; if (dd > Lpkc.count) dd = Lpkc.count; if (!Lpkc.white) Lpkc.d += dd; Lpkc.db -= dd; Lpkc.count -= dd; j -= dd; if (Lpkc.db == 0 || j == 0) { Lpkc.buf[s] = Lpkc.d; s++; Lpkc.d = 0; Lpkc.db = 8; } } } static void pkcher() { short hr, vr, br, ar; ushort s, s1, s2, t, t1, t2; uchar ts, te, tr, tt, b, bb; uchar sum[ym + 1]; fontdesc *WITH; chdesc *WITH1; WITH = fontvect[fontint]; WITH1 = &WITH->chv[c]; achm += WITH1->U1.bmp; b = PKN1; Lpkc.white = ((b & 8) == 0); Lpkc.wid1 = WITH1->U1.wid; Lpkc.dynf = b >> 4; Lpkc.dyng = (13 - Lpkc.dynf) * 16 + Lpkc.dynf - 15; Lpkc.dynh = -(Lpkc.dynf + 1) * 15; bb = b & 7; switch (bb) { case 0: case 1: case 2: case 3: achm += 10; break; case 4: case 5: case 6: achm += 16; break; case 7: achm += 36; break; } Lpkc.bmerk = 0; Lpkc.d = 0; Lpkc.db = 0; Lpkc.repc = 0; Lpkc.count = 0; Lpkc.white = !Lpkc.white; switch (dviori) { case 0: hr = (short)(conv * h + 0.5) - WITH1->U1.hof; br = hr + WITH1->U1.wid - 1; vr = (short)(vconv * v + 0.5) - WITH1->U1.vof; ar = vr + WITH1->U1.hei - 1; if (vr >= 0) if (ar <= ymax) if (hr >= 0) if (br <= xmax) { s1 = hr >> 3; s2 = br >> 3; Lpkc.xs = hr & 7; t1 = vr >> 3; t2 = ar >> 3; ts = vr & 7; te = 7; tr = ar & 7; for (t = t1; t <= t2; t++) { if (t == t2) te = tr; for (s = s1; s <= s2; s++) sum[s] = 0; for (tt = ts; tt <= te; tt++) { pklene(); for (s = s1; s <= s2; s++) sum[s] += Lpkc.buf[s - s1]; } ts = 0; for (s = s1; s <= s2; s++) paxet(t, s, sum[s]); } } break; case 1: hr = (short)(conv * (landx + v) + 0.5) - WITH1->U1.vof; br = hr + WITH1->U1.hei - 1; vr = (short)(vconv * (landy - h) + 0.5) + WITH1->U1.hof; ar = vr - WITH1->U1.wid + 1; if (ar >= 0) if (vr <= ymax) if (hr >= 0) if (br <= xmax) { s1 = vr >> 3; s2 = ar >> 3; Lpkc.xs = 7 - (vr & 7); t1 = hr >> 3; t2 = br >> 3; ts = hr & 7; te = 7; tr = br & 7; for (t = t1; t <= t2; t++) { if (t == t2) te = tr; for (s = s1; s >= s2; s--) sum[s] = 0; for (tt = ts; tt <= te; tt++) { pklene(); for (s = s1; s >= s2; s--) sum[s] += Lpkc.buf[s1 - s]; } ts = 0; for (s = s1; s >= s2; s--) paxet(s, t, sum[s]); } } break; case 3: hr = (short)(conv * (landx - v) + 0.5) + WITH1->U1.vof; br = hr - WITH1->U1.hei + 1; vr = (short)(vconv * (landy + h) + 0.5) - WITH1->U1.hof; ar = vr + WITH1->U1.wid - 1; if (vr >= 0) if (ar <= ymax) if (br >= 0) if (hr <= xmax) { s1 = vr >> 3; s2 = ar >> 3; Lpkc.xs = vr & 7; t1 = hr >> 3; t2 = br >> 3; ts = 7 - (hr & 7); te = 7; tr = 7 - (br & 7); for (t = t1; t >= t2; t--) { if (t == t2) te = tr; for (s = s1; s <= s2; s++) sum[s] = 0; for (tt = ts; tt <= te; tt++) { pklene(); for (s = s1; s <= s2; s++) sum[s] += Lpkc.buf[s - s1]; } ts = 0; for (s = s1; s <= s2; s++) paxet(s, t, sum[s]); } } break; case 2: hr = (short)(conv * (landx - h) + 0.5) + WITH1->U1.hof; br = hr - WITH1->U1.wid + 1; vr = (short)(vconv * (landy - v) + 0.5) + WITH1->U1.vof; ar = vr - WITH1->U1.hei + 1; if (ar >= 0) if (vr <= ymax) if (br >= 0) if (hr <= xmax) { s1 = hr >> 3; s2 = br >> 3; Lpkc.xs = 7 - (hr & 7); t1 = vr >> 3; t2 = ar >> 3; ts = 7 - (vr & 7); te = 7; tr = 7 - (ar & 7); for (t = t1; t >= t2; t--) { if (t == t2) te = tr; for (s = s1; s >= s2; s--) sum[s] = 0; for (tt = ts; tt <= te; tt++) { pklene(); for (s = s1; s >= s2; s--) sum[s] += Lpkc.buf[s1 - s]; } ts = 0; for (s = s1; s >= s2; s--) paxet(t, s, sum[s]); } } break; } } static void fontdef() { uchar a, b, p, q; fontdesc *WITH; if (f < 0) baddvi("negative fontnumber"); b = f & 0xff; a = 0; if ((f > 255) || (fontvect[b] != NULL)) do { if (fontvect[a] == NULL) b = a; else if (fontvect[a]->dfn == f) baddvi("double fontnumber"); a++; } while (a); if (fontvect[b] != NULL) baddvi("too many fonts"); fontint = b; Tptr( fontvect[b] = (fontdesc *)malloc(sizeof(fontdesc)) ); WITH = fontvect[fontint]; WITH->dfn = f; chk = dvinum(4); scf = dvinum(4); dsz = dvinum(4); WITH->chm = NULL; WITH->fty = -1; p = dvibyte(); q = dvibyte(); dvibytes(FONAM, q); if (p == 0) strcpy(FOPRE, fontprefix); else dvibytes(FOPRE, p); sprintf(FOMAG, "%ld", (long)(xres * dvimag / 1000.0 * ((double)scf / dsz) + 0.5)); #ifdef __MSDOS__ sprintf(FOFUL, "%s%s\\%s.", FOPRE, FOMAG, FONAM); sprintf(FOLOC, "%s.", FONAM); #else sprintf(FOFUL, "%s%s.%s", FOPRE, FONAM, FOMAG); sprintf(FOLOC, "%s.%s", FONAM, FOMAG); #endif pkdef(); if (WITH->mch < 0) tfmdef(); } static void fontlod() { uchar b = 0; fontdesc *WITH = fontvect[fontint]; WITH->chm = (uchar *)malloc(WITH->danf); if (WITH->chm == NULL) { do { if (fontvect[b] != NULL) { if (fontvect[b]->chm) free(fontvect[b]->chm); fontvect[b]->chm = NULL; } b++; } while (b); Tptr( WITH->chm = (uchar *)malloc(WITH->danf) ); } fofil = fopen(WITH->fonam, "rb"); fread(WITH->chm, WITH->danf, 1, fofil); fclose(fofil); } static void fontset() { uchar a, b, x; b = f & 0xff; x = 0; if (fontvect[b] != NULL) if (fontvect[b]->dfn == f) x = 1; if (x == 0) { a = 0; do { if (fontvect[a] == NULL) a++; else if (fontvect[a]->dfn != f) a++; else { x = 1; b = a; a = 0; } } while (a != 0); } if (x == 0) baddvi("undefined fontnumber"); fontint = b; } static void putrale() { short hr, vr, br, ar; if (b <= 0) return; switch (dviori) { case 0: hr = (short)(conv * h + 0.5); vr = (short)(vconv * (v - a) + 0.5); br = (short)(conv * b + 0.5); if (br > 0) br--; ar = (short)(vconv * a + 0.5); break; case 1: hr = (short)(conv * (landx + v - a) + 0.5); vr = (short)(vconv * (landy - h - b) + 0.5); br = (short)(conv * a + 0.5); ar = (short)(vconv * b + 0.5); if (ar > 0) ar--; break; case 3: hr = (short)(conv * (landx - v) + 0.5); vr = (short)(vconv * (landy + h) + 0.5); br = (short)(conv * a + 0.5); ar = (short)(vconv * b + 0.5); if (ar > 0) ar--; break; case 2: hr = (short)(conv * (landx - h - b) + 0.5); vr = (short)(vconv * (landy - v) + 0.5); br = (short)(conv * b + 0.5); if (br > 0) br--; ar = (short)(vconv * a + 0.5); break; } ar += vr; br += hr; if (hr < 0) hr = 0; if (br > xmax) br = xmax; if (vr < 0) vr = 0; if (ar > ymax) { ar = ymax; below = 1; } if (hr <= br) if (vr <= ar) { setract(hr, vr, br, ar); } } static void putrule() { short hr, vr, br, ar; if (b <= 0) return; if (alles) { putrale(); return; } switch (dviori) { case 0: hr = (short)(conv * h + 0.5)-hoff; vr = (short)(vconv * (v - a) + 0.5)-voff; br = (short)(conv * b + 0.5); if (br > 0) br--; ar = (short)(vconv * a + 0.5); break; case 1: hr = (short)(conv * (landx + v - a) + 0.5)-hoff; vr = (short)(vconv * (landy - h - b) + 0.5)-voff; br = (short)(conv * a + 0.5); ar = (short)(vconv * b + 0.5); if (ar > 0) ar--; break; case 3: hr = (short)(conv * (landx - v) + 0.5)-hoff; vr = (short)(vconv * (landy + h) + 0.5)-voff; br = (short)(conv * a + 0.5); ar = (short)(vconv * b + 0.5); if (ar > 0) ar--; break; case 2: hr = (short)(conv * (landx - h - b) + 0.5)-hoff; vr = (short)(vconv * (landy - v) + 0.5)-voff; br = (short)(conv * b + 0.5); if (br > 0) br--; ar = (short)(vconv * a + 0.5); break; } ar += vr; br += hr; if (hr < 0) hr = 0; if (br > xmax) br = xmax; if (vr < 0) vr = 0; if (ar > ymax) { ar = ymax; below = 1; } if (hr <= br) if (vr <= ar) { setrect(hr, vr, br, ar); } } static void putchar_() { fontdesc *WITH; chdesc *WITH1; WITH = fontvect[fontint]; if (c > WITH->mch) { q = 0; return; } WITH1 = &WITH->chv[c]; q = WITH1->U1.tfw; if (WITH->fty == 1) { if (alles) tfmcher(); else tfmchar(); return; } if (WITH1->U1.bmp == 0) return; if (WITH->chm == NULL) fontlod(); achm = WITH->chm; if(alles) pkcher(); else pkchar(); } static void pageinit() { greydesc *WITH; s = 0; w = 0; x = 0; y = 0; z = 0; if (alles) { h = (long)(xres / conv + 0.5); v = (long)(yres / vconv + 0.5); } else { h = 0; v = 0; } for (j = 0; j <= 7; j++) { WITH = &greymask[j]; WITH->maskc = 0xff; WITH->maskm = 0xff; WITH->masky = 0xff; } darkfac = maxink; } static void pagebeg() { uchar j; for (j = 0; j <= 9; j++) cnt[j] = dvinum(4); lpp = dvinum(4); pagnum++; alles = 3; if (pagnum >= pag1) { started = 1; } zoelli = ftell(dvifile); zoelli += (long)dvibufp - (long)dvibufe; dispopen(); pageinit(); } static void pageend() { char np; if (s != 0) fprintf(prot, "Stack not empty at EOP\n"); if (!started) return; dispcopy(); if (alles) np = 0; else np = evalkbd(); if (np == 0) { dviposit(zoelli); pageinit(); dispopen(); } if (np < 0) if (lpp) dviposit(lpp); } static void deffont() { ushort l, m; if (!post) { fontdef(); return; } dviskip(12L); l = dvibyte(); m = dvibyte(); dviskip((long)(l + m)); } static void special() { long i, j, k; char *parm; double x, y, cy, ma, ye, bl; short cle, m, n, b; if (spl > 255) { fprintf(prot, "special >>"); for (i = spl; i > 0; i--) fputc(dvibyte(), prot); fprintf(prot, "<< ignored\n"); return; } dvibytes(comment, (int)spl); if (!memcmp(comment, "landend", 7)) { dviori = 0; return; } if (!memcmp(comment, "landstart", 9)) { if (comment[10] == '1') dviori = 1; else if (comment[10] == '0') dviori = 3; else dviori = 2; sscanf(comment+12, "%lg%lg", &x,&y); j = (long)(x * 65535L + 0.5); k = (long)(y * 65535L + 0.5); switch (dviori) { case 1: landx = h - v; landy = v + j + h; break; case 3: landx = h + k + v; landy = v - h; break; case 2: landx = h + h + k; landy = v + j + v; break; } return; } if (memcmp(comment, "color", 5)) { fprintf(prot, "special >>%s<< ignored", comment); return; } parm = comment+6; if (!memcmp(parm, "pop", 3)) { parm +=4; colst--; if (colst < 0) { colst = 0; fprintf(prot, " color stack underflow"); } } else { if (!memcmp(parm, "push cmyk", 9)) { parm +=10; colst++; if (colst > smax-1) { colst = smax-1; fprintf(prot, " color stack overflow"); } } if (sscanf(parm,"%lg%lg%lg%lg",&cy,&ma,&ye,&bl)<4) { fprintf(prot," color: cmyk values <%s> incomplete ",comment); return; } cy+=bl; ma+=bl; ye+=bl; bl=cy*0.3+ma*0.59+ye*0.11; n = (short)(cy * maxink); if (n < 0) n = 0; if (n > maxink) n = maxink; stackcy[colst] = n; n = (short)(ma * maxink); if (n < 0) n = 0; if (n > maxink) n = maxink; stackma[colst] = n; n = (short)(ye * maxink); if (n < 0) n = 0; if (n > maxink) n = maxink; stackye[colst] = n; n = (short)(bl * maxink); if (n < 0) n = 0; if (n > maxink) n = maxink; stackbl[colst] = n; } b = stackbl[colst]; cle = b; n = stackcy[colst]; cle += n; if (alles == 3) darkfac = n; for (m = 0; m <= 7; m++) greymask[m].maskc = maskb[n][m & 3]; n = stackma[colst]; cle += n; if (alles == 2) darkfac = n; for (m = 0; m <= 7; m++) greymask[m].maskm = maskb[n][m & 3]; n = stackye[colst]; cle += n; if (alles == 1) darkfac = n; for (m = 0; m <= 7; m++) greymask[m].masky = maskb[n][m & 3]; clearing = (cle == 0); if (vertfac == 7) darkfac = b; } static void preambl() { uchar l; l = dvibyte(); num = dvinum(4); den = dvinum(4); dvimag = dvinum(4); if (newmag != 0) dvimag = newmag; conv = num / 254000.0 * ((double)xres / den) * (dvimag / 1000.0); vconv = num / 254000.0 * ((double)yres / den) * (dvimag / 1000.0); l = dvibyte(); dvibytes(comment, l); fprintf(prot, "%s\n", comment); } static void postamb() { lpp = dvinum(4); num = dvinum(4); den = dvinum(4); dvimag = dvinum(4); if (newmag != 0) dvimag = newmag; conv = num / 254000.0 * ((double)xres / den) * (dvimag / 1000.0); vconv = num / 254000.0 * ((double)yres / den) * (dvimag / 1000.0); mxv = dvinum(4); mxh = dvinum(4); mst = dvinum(2); mpn = dvinum(2); } main(int argc, char **argv) { char *parm; post = 0; fini = 0; started = 0; dviori = 0; pagnum = 0; pag1 = 1; paganz = 9999; newmag = 0; q = 0; hoff = -xres; voff = -yres; Tptr( fontvect = (fontdesc **) calloc(256, 4) ); initbitrev(); colst = 0; dispinit(); stackcy[colst] = maxink; stackma[colst] = maxink; stackye[colst] = maxink; stackbl[colst] = maxink; fprintf(prot, "This is the VGA Color TeX driver, V 94.02 .\n"); fprintf(prot, "(C)opyright 1994 Wolfgang R. Mueller, Computing Centre,\n"); fprintf(prot, "Heinrich-Heine-University Duesseldorf, Germany\n"); if (argc == 1) { fprintf(prot, "Please use with dvifilename and optional parameters\n"); fprintf(prot, " -s (default: 1 i.e. first in file)\n"); fprintf(prot, " -m (default: from DVIfile)\n"); fprintf(prot, " -f (default: %s)\n", fontprefix); fprintf(prot, " -t (default: %s)\n", tfmprefix); exit(0); } strcpy(dviname, "texput"); for (j = 1; j < argc; j++) { parm = argv[j]; if (parm[0] != '-') { strcpy(dviname, parm); } else { switch (parm[1]) { case 's': case 'S': sscanf(parm+2, "%d", &pag1); break; case 'f': case 'F': strcpy(fontprefix, parm+2); break; case 't': case 'T': strcpy(tfmprefix, parm+2); break; case 'm': case 'M': sscanf(parm+2, "%ld", &newmag); break; } } } dviopen(); postamb(); do { o = dvibyte(); /* fprintf(prot, "(%u)", (ushort)o); */ if (o <= 127) { c = o; if (started) putchar_(); h += q; } else if (o >= 171 && o <= 234) { f = o - 171; if (started) fontset(); } else switch (o) { case 128: case 129: case 130: case 131: c = dvinum(o - 127); if (started) putchar_(); h += q; break; case 132: a = dviint(4); b = dviint(4); if (started) putrule(); h += b; break; case 133: case 134: case 135: case 136: c = dvinum(o - 132); if (started) putchar_(); break; case 137: a = dviint(4); b = dviint(4); if (started) putrule(); break; case 138: break; case 139: pagebeg(); break; case 140: pageend(); break; case 141: if (s < smax) { s++; hs[s - 1] = h; vs[s - 1] = v; ws[s - 1] = w; xs[s - 1] = x; ys[s - 1] = y; zs[s - 1] = z; } else baddvi("stack overflow"); break; case 142: if (s > 0) { h = hs[s - 1]; v = vs[s - 1]; w = ws[s - 1]; x = xs[s - 1]; y = ys[s - 1]; z = zs[s - 1]; s--; } else baddvi("stack underflow"); break; case 143: case 144: case 145: case 146: h += dviint(o - 142); break; case 147: h += w; break; case 148: case 149: case 150: case 151: w = dviint(o - 147); h += w; break; case 152: h += x; break; case 153: case 154: case 155: case 156: x = dviint(o - 152); h += x; break; case 157: case 158: case 159: case 160: v += dviint(o - 156); break; case 161: v += y; break; case 162: case 163: case 164: case 165: y = dviint(o - 161); v += y; break; case 166: v += z; break; case 167: case 168: case 169: case 170: z = dviint(o - 166); v += z; break; case 235: case 236: case 237: case 238: f = dvinum(o - 234); if (started) fontset(); break; case 239: case 240: case 241: case 242: spl = dvinum(o - 238); special(); break; case 243: case 244: case 245: case 246: f = dvinum(o - 242); deffont(); break; case 247: preambl(); break; case 248: fini = 1; break; case 249: dviposit(0L); post = 1; break; case 250: case 251: case 252: case 253: case 254: case 255: break; } } while (!fini); dispclos(); fclose(dvifile); exit(0); } static void finale() { dispclos(); exit(1); }