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/* Copyright (c) 1991 Regents of the University of California */ |
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/* Copyright (c) 1992 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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TLINE tl; /* line list */ |
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} TEXT; |
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extern char *libpath; |
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extern char *getlibpath(); |
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extern char *fgetword(); |
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sprintf(errmsg, "undefined modifier \"%s\"", modname); |
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objerror(m, USER, errmsg); |
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} |
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raytexture(r, omod); |
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} else if (m->otype == PAT_BTEXT) { |
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if (rayshade(r, omod)) { |
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if (m->omod != OVOID) |
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objerror(m, USER, "inappropriate modifier"); |
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return(1); |
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} |
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} |
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if (m->otype == PAT_BTEXT) { |
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if (foreground) |
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scalecolor(r->pcol, m->oargs.farg[9]); |
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else |
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m->oargs.farg[14]); |
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multcolor(r->pcol, cval); |
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} |
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+ |
return(0); |
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} |
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if ((tl=(TLINE *)malloc(sizeof(TLINE)+siz)) == NULL || |
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(tl->spc=(short *)malloc(siz*sizeof(short))) == NULL) |
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error(SYSTEM, "out of memory in tlalloc"); |
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tl->spc = NULL; |
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tl->next = NULL; |
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strcpy(TLSTR(tl), s); |
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return(tl); |
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{ |
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#define R (tm->oargs.farg+3) |
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#define D (tm->oargs.farg+6) |
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extern char *strcpy(), *fgets(); |
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extern char *strcpy(); |
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FVECT DxR; |
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double d; |
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FILE *fp; |
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if (tm->oargs.nsargs - tndx(tm) < 1 || tm->oargs.nfargs < sndx(tm)) |
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objerror(tm, USER, "bad # arguments"); |
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if ((t = (TEXT *)malloc(sizeof(TEXT))) == NULL) |
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goto memerr; |
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error(SYSTEM, "out of memory in gettext"); |
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/* compute vectors */ |
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fcross(DxR, D, R); |
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fcross(t->right, DxR, D); |
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tlp = tlp->next; |
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} else { /* text file */ |
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if ((s = getpath(tm->oargs.sarg[tndx(tm)], |
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libpath, R_OK)) == NULL) { |
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getlibpath(), R_OK)) == NULL) { |
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sprintf(errmsg, "cannot find text file \"%s\"", |
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tm->oargs.sarg[tndx(tm)]); |
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error(USER, errmsg); |
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i = sndx(tm); |
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d = i < tm->oargs.nfargs ? tm->oargs.farg[i] : 0.0; |
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i = d * 256.0; |
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t->tl.width = 0; |
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for (tlp = t->tl.next; tlp != NULL; tlp = tlp->next) { |
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if ((tlp->spc = (short *)malloc( |
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(strlen(TLSTR(tlp))+1)*sizeof(short))) == NULL) |
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goto memerr; |
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if (i < 0) |
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tlp->width = squeeztext(tlp->spc, TLSTR(tlp), t->f, -i); |
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else if (i > 0) |
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tlp->width = proptext(tlp->spc, TLSTR(tlp), t->f, i, 3); |
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else |
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tlp->width = uniftext(tlp->spc, TLSTR(tlp), t->f); |
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if (tlp->width > t->tl.width) |
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t->tl.width = tlp->width; |
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} |
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/* we're done */ |
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tm->os = (char *)t; |
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return(t); |
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memerr: |
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error(SYSTEM, "out of memory in gettext"); |
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#undef R |
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#undef D |
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} |
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tp = (TEXT *)m->os; |
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if (tp == NULL) |
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return; |
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for (tlp = tp->tl.next; tlp != NULL; tlp = tlp->next) { |
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while ((tlp = tp->tl.next) != NULL) { |
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tp->tl.next = tlp->next; |
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free((char *)tlp->spc); |
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free((char *)tlp); |
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} |
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v[0] = p[0] - m->oargs.farg[0]; |
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v[1] = p[1] - m->oargs.farg[1]; |
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v[2] = p[2] - m->oargs.farg[2]; |
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h = x = DOT(v, tp->right)*256.; |
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x = DOT(v, tp->right); |
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i = sndx(m); |
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if (i < m->oargs.nfargs) |
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x *= tp->f->mwidth + 256.*fabs(m->oargs.farg[i]); |
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else |
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x *= 256.; |
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h = x; |
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i = y = DOT(v, tp->down); |
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if (x < 0.0 || y < 0.0) |
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return(0); |
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inglyph(x, y, gl) /* (x,y) within font glyph gl? */ |
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double x, y; |
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double x, y; /* real coordinates in range [0,256) */ |
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register GLYPH *gl; |
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{ |
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int n, ncross; |
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int xtc, ytc; |
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int xlb, ylb; |
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int tv; |
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register GORD *p0, *p1; |
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if (gl == NULL) |
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return(0); |
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xtc = x + 0.5; /* compute test coordinates */ |
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ytc = y + 0.5; |
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if (gl->left > xtc || gl->right < xtc || |
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gl->bottom > ytc || gl->top < ytc) |
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return(0); /* outside extent */ |
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> |
xlb = x; |
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ylb = y; |
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if (gl->left > xlb || gl->right <= xlb || /* check extent */ |
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> |
gl->bottom > ylb || gl->top <= ylb) |
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return(0); |
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> |
xlb = xlb<<1 | 1; /* add 1/2 to test points... */ |
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ylb = ylb<<1 | 1; /* ...so no equal comparisons */ |
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n = gl->nverts; /* get # of vertices */ |
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p0 = gvlist(gl) + 2*(n-1); /* connect last to first */ |
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p1 = gvlist(gl); |
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ncross = 0; |
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/* positive x axis cross test */ |
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while (n--) { |
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if ((p0[1] > ytc) ^ (p1[1] > ytc)) |
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if (p0[0] > xtc && p1[0] > xtc) |
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> |
if ((p0[1]<<1 > ylb) ^ (p1[1]<<1 > ylb)) { |
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> |
tv = p0[0]<<1 > xlb | (p1[0]<<1 > xlb) << 1; |
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if (tv == 03) |
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ncross++; |
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else if (p0[0] > xtc || p1[0] > xtc) |
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else if (tv) |
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ncross += (p1[1] > p0[1]) ^ |
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((p0[1]-y)*(p1[0]-x) > |
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(p0[0]-x)*(p1[1]-y)); |
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+ |
} |
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p0 = p1; |
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p1 += 2; |
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} |
