src/px/psign.c

/* Copyright (c) 1992 Regents of the University of California */

#ifndef lint
static char SCCSid[] = "$SunId$ LBL";
#endif

/*
 *  psign.c - produce picture from text.
 *
 *      7/1/87
 */

#include  "standard.h"

#include  "color.h"

#include  "font.h"

#ifndef  SSS
#define  SSS                    3       /* super-sample size */
#endif

#define  MAXLINE                512     /* longest allowable line */

char  *fontfile = "helvet.fnt";         /* our font file */

COLOR  bgcolor = WHTCOLOR;              /* background color */
COLOR  fgcolor = BLKCOLOR;              /* foreground color */

int  direct = 'r';                      /* direction (right, up, left, down) */

int  cheight = 32*SSS;                  /* character height */
double  aspect = 1.67;                  /* height/width character aspect */
double  spacing = 0.0;                  /* character spacing */
int  cwidth;                            /* computed character width */

unsigned char  *ourbitmap;              /* our output bitmap */
int  xsiz, ysiz;                        /* bitmap dimensions */
int  xdim;                              /* size of horizontal scan (bytes) */

#define  bitop(x,y,op)          (ourbitmap[(y)*xdim+((x)>>3)] op (1<<((x)&7)))
#define  tstbit(x,y)            bitop(x,y,&)
#define  setbit(x,y)            bitop(x,y,|=)
#define  clrbit(x,y)            bitop(x,y,&=~)
#define  tglbit(x,y)            bitop(x,y,^=)

FONT  *ourfont;                         /* our font */

typedef struct line {
        char  *s;               /* line w/o LF */
        short  *sp;             /* character spacing */
        struct line  *next;     /* next line up */
} LINE;

LINE  *ourtext;                         /* our text */
int  nlines, maxline;                   /* text dimensions */
int  maxwidth;                          /* maximum line width (dvi) */


main(argc, argv)
int  argc;
char  *argv[];
{
        int  an;
#ifdef MSDOS
        setmode(fileno(stdout), O_BINARY);
#endif
        for (an = 1; an < argc && argv[an][0] == '-'; an++)
                switch (argv[an][1]) {
                case 'c':                       /* color */
                        switch (argv[an][2]) {
                        case 'f':                       /* foreground */
                                setcolor(fgcolor, atof(argv[an+1]),
                                                atof(argv[an+2]),
                                                atof(argv[an+3]));
                                an += 3;
                                break;
                        case 'b':                       /* background */
                                setcolor(bgcolor, atof(argv[an+1]),
                                                atof(argv[an+2]),
                                                atof(argv[an+3]));
                                an += 3;
                                break;
                        default:
                                goto unkopt;
                        }
                        break;
                case 'f':                       /* font */
                        fontfile = argv[++an];
                        break;
                case 'd':                       /* direction */
                        switch (argv[an][2]) {
                        case 'r':                       /* right */
                        case 'u':                       /* up */
                        case 'l':                       /* left */
                        case 'd':                       /* down */
                                direct = argv[an][2];
                                break;
                        default:
                                goto unkopt;
                        }
                        break;
                case 'x':                       /* x resolution */
                        xsiz = atoi(argv[++an])*SSS;
                        break;
                case 'y':
                        ysiz = atoi(argv[++an])*SSS;
                        break;
                case 'h':                       /* height of characters */
                        cheight = atoi(argv[++an])*SSS;
                        break;
                case 'a':                       /* aspect ratio */
                        aspect = atof(argv[++an]);
                        break;
                case 's':                       /* spacing */
                        spacing = atof(argv[++an]);
                        break;
                default:;
unkopt:
                        fprintf(stderr, "%s: unknown option: %s\n",
                                        argv[0], argv[an]);
                        exit(1);
                }
                                        /* load font file */
        ourfont = getfont(fontfile);
                                        /* get text */
        if (an == argc)
                gettext(stdin);
        else
                arg_text(argc-an, argv+an);

                                        /* create bit map */
        makemap();
                                        /* convert text to bitmap */
        maptext();
                                        /* print header */
        newheader("RADIANCE", stdout);
        printargs(argc, argv, stdout);
        fputformat(COLRFMT, stdout);
        putchar('\n');
                                        /* write out bitmap */
        writemap(stdout);

        exit(0);
}


makemap()                       /* create the bit map */
{
        double  pictaspect;
        
        if (direct == 'r' || direct == 'l') {
                if (xsiz <= 0) {
                        cwidth = cheight/aspect + 0.5;
                        xsiz = (long)maxwidth*cwidth >> 8;
                        ysiz = nlines*cheight;
                } else if (aspect > FTINY) {
                        if (ysiz <= 0)
                                ysiz = cheight*nlines;
                        pictaspect = 256*nlines*aspect/maxwidth;
                        if (pictaspect*xsiz < ysiz)
                                ysiz = pictaspect*xsiz + 0.5;
                        else
                                xsiz = ysiz/pictaspect + 0.5;
                        cheight = ysiz/nlines;
                        cwidth = cheight/aspect;
                } else {
                        if (ysiz <= 0)
                                ysiz = cheight*nlines;
                        pictaspect = (double)ysiz/xsiz;
                        aspect = pictaspect*maxwidth/(256*nlines);
                        cheight = ysiz/nlines;
                        cwidth = cheight/aspect;
                }
        } else {                        /* reverse orientation */
                if (ysiz <= 0) {
                        cwidth = cheight/aspect + 0.5;
                        xsiz = nlines*cheight;
                        ysiz = (long)maxwidth*cwidth >> 8;
                } else if (aspect > FTINY) {
                        if (xsiz <= 0)
                                xsiz = cheight*nlines;
                        pictaspect = maxwidth/(256*nlines*aspect);
                        if (pictaspect*xsiz < ysiz)
                                ysiz = pictaspect*xsiz + 0.5;
                        else
                                xsiz = ysiz/pictaspect + 0.5;
                        cheight = xsiz/nlines;
                        cwidth = cheight/aspect;
                } else {
                        if (xsiz <= 0)
                                xsiz = cheight*nlines;
                        pictaspect = (double)ysiz/xsiz;
                        aspect = maxwidth/(256*nlines*pictaspect);
                        cheight = xsiz/nlines;
                        cwidth = cheight/aspect;
                }
        }
        if (xsiz % SSS)
                xsiz += SSS - xsiz%SSS;
        if (ysiz % SSS)
                ysiz += SSS - ysiz%SSS;
        xdim = (xsiz+7)/8;
        ourbitmap = (BYTE *)bmalloc(ysiz*xdim);
        if (ourbitmap == NULL)
                error(SYSTEM, "Out of memory in makemap");
        bzero((char *)ourbitmap, ysiz*xdim);
}


gettext(fp)                     /* get text from a file */
FILE  *fp;
{
        char  buf[MAXLINE];
        register LINE  *curl;
        int  len;

        maxline = 0;
        maxwidth = 0;
        nlines = 0;
        while (fgets(buf, MAXLINE, fp) != NULL) {
                curl = (LINE *)malloc(sizeof(LINE));
                if (curl == NULL)
                        goto memerr;
                len = strlen(buf);
                curl->s = malloc(len);
                curl->sp = (short *)malloc(sizeof(short)*len--);
                if (curl->s == NULL | curl->sp == NULL)
                        goto memerr;
                if (len > maxline)
                        maxline = len;
                strncpy(curl->s, buf, len);
                curl->s[len] = '\0';
                if (spacing < -1./256.)
                        len = squeeztext(curl->sp, curl->s, ourfont,
                                        (int)(spacing*-256.));
                else if (spacing > 1./256.)
                        len = proptext(curl->sp, curl->s, ourfont,
                                        (int)(spacing*256.), 3);
                else
                        len = uniftext(curl->sp, curl->s, ourfont);
                if (len > maxwidth)
                        maxwidth = len;
                curl->next = ourtext;
                ourtext = curl;
                nlines++;
        }
        return;
memerr:
        error(SYSTEM, "Out of memory in gettext");
}


arg_text(ac, av)                        /* get text from arguments */
int  ac;
char  *av[];
{
        register char  *cp;

        ourtext = (LINE *)malloc(sizeof(LINE));
        if (ourtext == NULL)
                goto memerr;
        ourtext->s = malloc(MAXLINE);
        if (ourtext->s == NULL)
                goto memerr;
        for (cp = ourtext->s; ac-- > 0; av++) {
                strcpy(cp, *av);
                cp += strlen(*av);
                *cp++ = ' ';
        }
        *--cp = '\0';
        ourtext->next = NULL;
        maxline = strlen(ourtext->s);
        ourtext->sp = (short *)malloc(sizeof(short)*(maxline+1));
        if (ourtext->sp == NULL)
                goto memerr;
        if (spacing < -1./256.)
                maxwidth = squeeztext(ourtext->sp, ourtext->s, ourfont,
                                (int)(spacing*-256.));
        else if (spacing > 1./256.)
                maxwidth = proptext(ourtext->sp, ourtext->s, ourfont,
                                (int)(spacing*256.), 3);
        else
                maxwidth = uniftext(ourtext->sp, ourtext->s, ourfont);
        nlines = 1;
        return;
memerr:
        error(SYSTEM, "Out of memory in arg_text");
}


maptext()                       /* map our text */
{
        register LINE  *curl;
        int  l, len;
        register int  i, c;

        for (l = 0, curl = ourtext; curl != NULL; l += 256, curl = curl->next) {
                len = strlen(curl->s); c = 0;
                for (i = 0; i < len; i++) {
                        c += curl->sp[i];
                        mapglyph(ourfont->fg[curl->s[i]&0xff], c, l);
                }
        }
}


mapglyph(gl, tx0, ty0)          /* convert a glyph */
GLYPH  *gl;
int  tx0, ty0;
{
        int  n;
        register GORD  *gp;
        int  p0[2], p1[2];

        if (gl == NULL)
                return;

        n = gl->nverts;
        gp = gvlist(gl);
        mapcoord(p0, gp[2*n-2]+tx0, gp[2*n-1]+ty0);
        while (n--) {
                mapcoord(p1, gp[0]+tx0, gp[1]+ty0);
                mapedge(p0[0], p0[1], p1[0]-p0[0], p1[1]-p0[1]);
                p0[0] = p1[0]; p0[1] = p1[1];
                gp += 2;
        }
}


mapcoord(p, tx, ty)             /* map text to picture coordinates */
int  p[2], tx, ty;
{
        tx = (long)tx*cwidth >> 8;
        ty = (long)ty*cheight >> 8;

        switch (direct) {
        case 'r':                       /* right */
                p[0] = tx;
                p[1] = ty;
                return;
        case 'u':                       /* up */
                p[0] = xsiz-1-ty;
                p[1] = tx;
                return;
        case 'l':                       /* left */
                p[0] = xsiz-1-tx;
                p[1] = ysiz-1-ty;
                return;
        case 'd':                       /* down */
                p[0] = ty;
                p[1] = ysiz-1-tx;
                return;
        }
}


mapedge(x, y, run, rise)                /* map an edge */
register int  x, y;
int  run, rise;
{
        int  xstep;
        int  rise2, run2;
        int  n;

        if (rise == 0)
                return;
                                                /* always draw up */
        if (rise < 0) {
                x += run;
                y += rise;
                rise = -rise;
                run = -run;
        }
        if (run < 0) {
                xstep = -1;
                run = -run;
        } else
                xstep = 1;
        n = rise;
        run2 = rise2 = 0;
        while (n)
                if (rise2 >= run2) {
                        tglbit(x, y);
                        n--;
                        y++;
                        run2 += run;
                } else {
                        x += xstep;
                        rise2 += rise;
                }
}


writemap(fp)                    /* write out bitmap */
FILE  *fp;
{
        COLR  pixval[SSS*SSS+1];        /* possible pixel values */
        COLOR  ctmp0, ctmp1;
        double  d;
        COLR  *scanout;
        int  x, y;
        register int  i, j;
        int  cnt;
        register int  inglyph;

        fprintf(fp, "-Y %d +X %d\n", ysiz/SSS, xsiz/SSS);

        scanout = (COLR *)malloc(xsiz/SSS*sizeof(COLR));
        if (scanout == NULL)
                error(SYSTEM, "Out of memory in writemap");
        for (i = 0; i <= SSS*SSS; i++) {        /* compute possible values */
                copycolor(ctmp0, fgcolor);
                d = (double)i/(SSS*SSS);
                scalecolor(ctmp0, d);
                copycolor(ctmp1, bgcolor);
                d = 1.0 - d;
                scalecolor(ctmp1, d);
                addcolor(ctmp0, ctmp1);
                setcolr(pixval[i], colval(ctmp0,RED),
                                colval(ctmp0,GRN), colval(ctmp0,BLU));
        }
        for (y = ysiz/SSS-1; y >= 0; y--) {
                inglyph = 0;
                for (x = 0; x < xsiz/SSS; x++) {
                        cnt = 0;
                        for (j = 0; j < SSS; j++)
                                for (i = 0; i < SSS; i++) {
                                        if (tstbit(x*SSS+i, y*SSS+j))
                                                inglyph ^= 1<<j;
                                        if (inglyph & 1<<j)
                                                cnt++;
                                }
                        copycolr(scanout[x], pixval[cnt]);
                }
                if (fwritecolrs(scanout, xsiz/SSS, fp) < 0) {
                        fprintf(stderr, "write error in writemap\n");
                        exit(1);
                }
        }
        free((char *)scanout);
}
Revision:	2.17
Committed:	Thu Apr 14 04:53:54 1994 UTC (30 years ago) by greg
Content type:	text/plain
Branch:	MAIN
Changes since 2.16:	+0 -6 lines
Log Message:	changed libpath to getlibpath()
#	User	Rev	Content
1	greg	2.9	/* Copyright (c) 1992 Regents of the University of California */
2	greg	1.1
3			#ifndef lint
4			static char SCCSid[] = "$SunId$ LBL";
5			#endif
6
7			/*
8			* psign.c - produce picture from text.
9			*
10			* 7/1/87
11			*/
12
13	greg	2.3	#include "standard.h"
14	greg	1.1
15			#include "color.h"
16
17	greg	2.3	#include "font.h"
18
19	greg	2.13	#ifndef SSS
20			#define SSS 3 /* super-sample size */
21	greg	2.5	#endif
22	greg	2.4
23	greg	2.13	#define MAXLINE 512 /* longest allowable line */
24	greg	1.1
25	greg	1.2	char fontfile = "helvet.fnt"; / our font file */
26	greg	1.1
27	greg	2.5	COLOR bgcolor = WHTCOLOR; /* background color */
28			COLOR fgcolor = BLKCOLOR; /* foreground color */
29	greg	1.1
30			int direct = 'r'; /* direction (right, up, left, down) */
31
32	greg	2.5	int cheight = 32SSS; / character height */
33	greg	2.13	double aspect = 1.67; /* height/width character aspect */
34			double spacing = 0.0; /* character spacing */
35	greg	1.1	int cwidth; /* computed character width */
36
37			unsigned char ourbitmap; / our output bitmap */
38			int xsiz, ysiz; /* bitmap dimensions */
39			int xdim; /* size of horizontal scan (bytes) */
40
41	greg	2.13	#define bitop(x,y,op) (ourbitmap[(y)*xdim+((x)>>3)] op (1<<((x)&7)))
42			#define tstbit(x,y) bitop(x,y,&)
43			#define setbit(x,y) bitop(x,y,\|=)
44			#define clrbit(x,y) bitop(x,y,&=~)
45			#define tglbit(x,y) bitop(x,y,^=)
46	greg	1.1
47	greg	2.3	FONT ourfont; / our font */
48	greg	1.1
49			typedef struct line {
50			char s; / line w/o LF */
51	greg	2.4	short sp; / character spacing */
52	greg	1.1	struct line next; / next line up */
53			} LINE;
54
55			LINE ourtext; / our text */
56			int nlines, maxline; /* text dimensions */
57	greg	2.4	int maxwidth; /* maximum line width (dvi) */
58	greg	1.1
59
60			main(argc, argv)
61			int argc;
62			char *argv[];
63			{
64			int an;
65	greg	2.13	#ifdef MSDOS
66			setmode(fileno(stdout), O_BINARY);
67			#endif
68	greg	1.1	for (an = 1; an < argc && argv[an][0] == '-'; an++)
69			switch (argv[an][1]) {
70			case 'c': /* color */
71			switch (argv[an][2]) {
72			case 'f': /* foreground */
73	greg	2.5	setcolor(fgcolor, atof(argv[an+1]),
74	greg	1.1	atof(argv[an+2]),
75			atof(argv[an+3]));
76			an += 3;
77			break;
78			case 'b': /* background */
79	greg	2.5	setcolor(bgcolor, atof(argv[an+1]),
80	greg	1.1	atof(argv[an+2]),
81			atof(argv[an+3]));
82			an += 3;
83			break;
84			default:
85			goto unkopt;
86			}
87			break;
88			case 'f': /* font */
89			fontfile = argv[++an];
90			break;
91			case 'd': /* direction */
92			switch (argv[an][2]) {
93			case 'r': /* right */
94			case 'u': /* up */
95			case 'l': /* left */
96			case 'd': /* down */
97			direct = argv[an][2];
98			break;
99			default:
100			goto unkopt;
101			}
102			break;
103	greg	2.9	case 'x': /* x resolution */
104			xsiz = atoi(argv[++an])*SSS;
105			break;
106			case 'y':
107			ysiz = atoi(argv[++an])*SSS;
108			break;
109	greg	1.1	case 'h': /* height of characters */
110	greg	2.5	cheight = atoi(argv[++an])*SSS;
111	greg	1.1	break;
112			case 'a': /* aspect ratio */
113			aspect = atof(argv[++an]);
114			break;
115	greg	2.6	case 's': /* spacing */
116			spacing = atof(argv[++an]);
117			break;
118	greg	1.1	default:;
119			unkopt:
120			fprintf(stderr, "%s: unknown option: %s\n",
121			argv[0], argv[an]);
122			exit(1);
123			}
124	greg	2.4	/* load font file */
125			ourfont = getfont(fontfile);
126	greg	1.1	/* get text */
127			if (an == argc)
128			gettext(stdin);
129			else
130			arg_text(argc-an, argv+an);
131
132			/* create bit map */
133			makemap();
134			/* convert text to bitmap */
135			maptext();
136			/* print header */
137	greg	2.16	newheader("RADIANCE", stdout);
138	greg	1.1	printargs(argc, argv, stdout);
139	greg	1.3	fputformat(COLRFMT, stdout);
140			putchar('\n');
141	greg	1.1	/* write out bitmap */
142			writemap(stdout);
143
144			exit(0);
145			}
146
147
148			makemap() /* create the bit map */
149			{
150	greg	2.13	double pictaspect;
151	greg	2.9
152	greg	1.1	if (direct == 'r' \|\| direct == 'l') {
153	greg	2.11	if (xsiz <= 0) {
154	greg	2.9	cwidth = cheight/aspect + 0.5;
155			xsiz = (long)maxwidth*cwidth >> 8;
156			ysiz = nlines*cheight;
157	greg	2.10	} else if (aspect > FTINY) {
158	greg	2.11	if (ysiz <= 0)
159			ysiz = cheight*nlines;
160	greg	2.9	pictaspect = 256nlinesaspect/maxwidth;
161			if (pictaspect*xsiz < ysiz)
162			ysiz = pictaspect*xsiz + 0.5;
163			else
164			xsiz = ysiz/pictaspect + 0.5;
165			cheight = ysiz/nlines;
166	greg	2.14	cwidth = cheight/aspect;
167	greg	2.10	} else {
168	greg	2.11	if (ysiz <= 0)
169			ysiz = cheight*nlines;
170	greg	2.10	pictaspect = (double)ysiz/xsiz;
171			aspect = pictaspectmaxwidth/(256nlines);
172			cheight = ysiz/nlines;
173	greg	2.14	cwidth = cheight/aspect;
174	greg	2.9	}
175	greg	1.1	} else { /* reverse orientation */
176	greg	2.11	if (ysiz <= 0) {
177	greg	2.9	cwidth = cheight/aspect + 0.5;
178			xsiz = nlines*cheight;
179			ysiz = (long)maxwidth*cwidth >> 8;
180	greg	2.10	} else if (aspect > FTINY) {
181	greg	2.11	if (xsiz <= 0)
182			xsiz = cheight*nlines;
183	greg	2.9	pictaspect = maxwidth/(256nlinesaspect);
184			if (pictaspect*xsiz < ysiz)
185			ysiz = pictaspect*xsiz + 0.5;
186			else
187			xsiz = ysiz/pictaspect + 0.5;
188	greg	2.10	cheight = xsiz/nlines;
189	greg	2.14	cwidth = cheight/aspect;
190	greg	2.10	} else {
191	greg	2.11	if (xsiz <= 0)
192			xsiz = cheight*nlines;
193	greg	2.10	pictaspect = (double)ysiz/xsiz;
194			aspect = maxwidth/(256nlinespictaspect);
195	greg	2.9	cheight = xsiz/nlines;
196	greg	2.14	cwidth = cheight/aspect;
197	greg	2.9	}
198	greg	1.1	}
199	greg	2.5	if (xsiz % SSS)
200			xsiz += SSS - xsiz%SSS;
201			if (ysiz % SSS)
202			ysiz += SSS - ysiz%SSS;
203	greg	1.1	xdim = (xsiz+7)/8;
204	greg	2.8	ourbitmap = (BYTE )bmalloc(ysizxdim);
205	greg	2.5	if (ourbitmap == NULL)
206			error(SYSTEM, "Out of memory in makemap");
207	greg	2.8	bzero((char )ourbitmap, ysizxdim);
208	greg	1.1	}
209
210
211			gettext(fp) /* get text from a file */
212			FILE *fp;
213			{
214			char buf[MAXLINE];
215			register LINE *curl;
216			int len;
217
218			maxline = 0;
219	greg	2.4	maxwidth = 0;
220	greg	1.1	nlines = 0;
221			while (fgets(buf, MAXLINE, fp) != NULL) {
222			curl = (LINE *)malloc(sizeof(LINE));
223			if (curl == NULL)
224			goto memerr;
225			len = strlen(buf);
226	greg	2.4	curl->s = malloc(len);
227			curl->sp = (short )malloc(sizeof(short)len--);
228			if (curl->s == NULL \| curl->sp == NULL)
229	greg	1.1	goto memerr;
230	greg	2.4	if (len > maxline)
231			maxline = len;
232	greg	1.1	strncpy(curl->s, buf, len);
233			curl->s[len] = '\0';
234	greg	2.7	if (spacing < -1./256.)
235	greg	2.6	len = squeeztext(curl->sp, curl->s, ourfont,
236	greg	2.14	(int)(spacing*-256.));
237	greg	2.7	else if (spacing > 1./256.)
238	greg	2.6	len = proptext(curl->sp, curl->s, ourfont,
239	greg	2.14	(int)(spacing*256.), 3);
240	greg	2.6	else
241			len = uniftext(curl->sp, curl->s, ourfont);
242	greg	2.4	if (len > maxwidth)
243			maxwidth = len;
244	greg	1.1	curl->next = ourtext;
245			ourtext = curl;
246			nlines++;
247			}
248			return;
249			memerr:
250	greg	2.5	error(SYSTEM, "Out of memory in gettext");
251	greg	1.1	}
252
253
254			arg_text(ac, av) /* get text from arguments */
255			int ac;
256			char *av[];
257			{
258			register char *cp;
259
260			ourtext = (LINE *)malloc(sizeof(LINE));
261			if (ourtext == NULL)
262			goto memerr;
263			ourtext->s = malloc(MAXLINE);
264			if (ourtext->s == NULL)
265			goto memerr;
266			for (cp = ourtext->s; ac-- > 0; av++) {
267			strcpy(cp, *av);
268			cp += strlen(*av);
269			*cp++ = ' ';
270			}
271			*--cp = '\0';
272			ourtext->next = NULL;
273			maxline = strlen(ourtext->s);
274	greg	2.4	ourtext->sp = (short )malloc(sizeof(short)(maxline+1));
275			if (ourtext->sp == NULL)
276			goto memerr;
277	greg	2.14	if (spacing < -1./256.)
278	greg	2.6	maxwidth = squeeztext(ourtext->sp, ourtext->s, ourfont,
279	greg	2.14	(int)(spacing*-256.));
280			else if (spacing > 1./256.)
281	greg	2.6	maxwidth = proptext(ourtext->sp, ourtext->s, ourfont,
282	greg	2.14	(int)(spacing*256.), 3);
283	greg	2.6	else
284			maxwidth = uniftext(ourtext->sp, ourtext->s, ourfont);
285	greg	1.1	nlines = 1;
286			return;
287			memerr:
288	greg	2.5	error(SYSTEM, "Out of memory in arg_text");
289	greg	1.1	}
290
291
292			maptext() /* map our text */
293			{
294			register LINE *curl;
295	greg	2.4	int l, len;
296			register int i, c;
297	greg	1.1
298	greg	2.4	for (l = 0, curl = ourtext; curl != NULL; l += 256, curl = curl->next) {
299			len = strlen(curl->s); c = 0;
300			for (i = 0; i < len; i++) {
301			c += curl->sp[i];
302			mapglyph(ourfont->fg[curl->s[i]&0xff], c, l);
303			}
304			}
305	greg	1.1	}
306
307
308			mapglyph(gl, tx0, ty0) /* convert a glyph */
309	greg	2.3	GLYPH *gl;
310	greg	1.1	int tx0, ty0;
311			{
312			int n;
313	greg	2.3	register GORD *gp;
314	greg	1.1	int p0[2], p1[2];
315
316			if (gl == NULL)
317			return;
318
319	greg	2.3	n = gl->nverts;
320			gp = gvlist(gl);
321			mapcoord(p0, gp[2n-2]+tx0, gp[2n-1]+ty0);
322	greg	1.1	while (n--) {
323	greg	2.3	mapcoord(p1, gp[0]+tx0, gp[1]+ty0);
324	greg	1.1	mapedge(p0[0], p0[1], p1[0]-p0[0], p1[1]-p0[1]);
325			p0[0] = p1[0]; p0[1] = p1[1];
326	greg	2.3	gp += 2;
327	greg	1.1	}
328			}
329
330
331			mapcoord(p, tx, ty) /* map text to picture coordinates */
332			int p[2], tx, ty;
333			{
334			tx = (long)tx*cwidth >> 8;
335			ty = (long)ty*cheight >> 8;
336
337			switch (direct) {
338			case 'r': /* right */
339			p[0] = tx;
340			p[1] = ty;
341			return;
342			case 'u': /* up */
343			p[0] = xsiz-1-ty;
344			p[1] = tx;
345			return;
346			case 'l': /* left */
347			p[0] = xsiz-1-tx;
348			p[1] = ysiz-1-ty;
349			return;
350			case 'd': /* down */
351			p[0] = ty;
352			p[1] = ysiz-1-tx;
353			return;
354			}
355			}
356
357
358			mapedge(x, y, run, rise) /* map an edge */
359			register int x, y;
360			int run, rise;
361			{
362			int xstep;
363			int rise2, run2;
364			int n;
365
366			if (rise == 0)
367			return;
368			/* always draw up */
369			if (rise < 0) {
370			x += run;
371			y += rise;
372			rise = -rise;
373			run = -run;
374			}
375			if (run < 0) {
376			xstep = -1;
377			run = -run;
378			} else
379			xstep = 1;
380			n = rise;
381			run2 = rise2 = 0;
382			while (n)
383			if (rise2 >= run2) {
384			tglbit(x, y);
385			n--;
386			y++;
387			run2 += run;
388			} else {
389			x += xstep;
390			rise2 += rise;
391			}
392			}
393
394
395			writemap(fp) /* write out bitmap */
396			FILE *fp;
397			{
398	greg	2.5	COLR pixval[SSSSSS+1]; / possible pixel values */
399			COLOR ctmp0, ctmp1;
400	greg	2.13	double d;
401	greg	1.1	COLR *scanout;
402	greg	2.5	int x, y;
403			register int i, j;
404			int cnt;
405	greg	1.1	register int inglyph;
406
407	greg	2.5	fprintf(fp, "-Y %d +X %d\n", ysiz/SSS, xsiz/SSS);
408	greg	1.1
409	greg	2.5	scanout = (COLR )malloc(xsiz/SSSsizeof(COLR));
410			if (scanout == NULL)
411			error(SYSTEM, "Out of memory in writemap");
412			for (i = 0; i <= SSSSSS; i++) { / compute possible values */
413			copycolor(ctmp0, fgcolor);
414			d = (double)i/(SSS*SSS);
415			scalecolor(ctmp0, d);
416			copycolor(ctmp1, bgcolor);
417			d = 1.0 - d;
418			scalecolor(ctmp1, d);
419			addcolor(ctmp0, ctmp1);
420			setcolr(pixval[i], colval(ctmp0,RED),
421			colval(ctmp0,GRN), colval(ctmp0,BLU));
422	greg	1.1	}
423	greg	2.5	for (y = ysiz/SSS-1; y >= 0; y--) {
424	greg	1.1	inglyph = 0;
425	greg	2.5	for (x = 0; x < xsiz/SSS; x++) {
426			cnt = 0;
427			for (j = 0; j < SSS; j++)
428			for (i = 0; i < SSS; i++) {
429			if (tstbit(xSSS+i, ySSS+j))
430			inglyph ^= 1<<j;
431			if (inglyph & 1<<j)
432			cnt++;
433			}
434			copycolr(scanout[x], pixval[cnt]);
435	greg	1.1	}
436	greg	2.5	if (fwritecolrs(scanout, xsiz/SSS, fp) < 0) {
437	greg	1.1	fprintf(stderr, "write error in writemap\n");
438			exit(1);
439			}
440			}
441			free((char *)scanout);
442			}