src/px/psign.c

#ifndef lint
static const char       RCSid[] = "$Id: psign.c,v 2.19 2003/06/05 19:29:34 schorsch Exp $";
#endif
/*
 *  psign.c - produce picture from text.
 *
 *      7/1/87
 */

#include  "standard.h"
#include  "platform.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;
        SET_FILE_BINARY(stdout);
        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 = (char *)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 = (char *)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((void *)scanout);
}
Revision:	2.20
Committed:	Sun Jun 8 12:03:10 2003 UTC (20 years, 10 months ago) by schorsch
Content type:	text/plain
Branch:	MAIN
Changes since 2.19:	+2 -1 lines
Log Message:	Reduced compile warnings/errors on Windows.
#	User	Rev	Content
1	greg	1.1	#ifndef lint
2	schorsch	2.20	static const char RCSid[] = "$Id: psign.c,v 2.19 2003/06/05 19:29:34 schorsch Exp $";
3	greg	1.1	#endif
4			/*
5			* psign.c - produce picture from text.
6			*
7			* 7/1/87
8			*/
9
10	greg	2.3	#include "standard.h"
11	schorsch	2.20	#include "platform.h"
12	greg	1.1	#include "color.h"
13	greg	2.3	#include "font.h"
14
15	greg	2.13	#ifndef SSS
16			#define SSS 3 /* super-sample size */
17	greg	2.5	#endif
18	greg	2.4
19	greg	2.13	#define MAXLINE 512 /* longest allowable line */
20	greg	1.1
21	greg	1.2	char fontfile = "helvet.fnt"; / our font file */
22	greg	1.1
23	greg	2.5	COLOR bgcolor = WHTCOLOR; /* background color */
24			COLOR fgcolor = BLKCOLOR; /* foreground color */
25	greg	1.1
26			int direct = 'r'; /* direction (right, up, left, down) */
27
28	greg	2.5	int cheight = 32SSS; / character height */
29	greg	2.13	double aspect = 1.67; /* height/width character aspect */
30			double spacing = 0.0; /* character spacing */
31	greg	1.1	int cwidth; /* computed character width */
32
33			unsigned char ourbitmap; / our output bitmap */
34			int xsiz, ysiz; /* bitmap dimensions */
35			int xdim; /* size of horizontal scan (bytes) */
36
37	greg	2.13	#define bitop(x,y,op) (ourbitmap[(y)*xdim+((x)>>3)] op (1<<((x)&7)))
38			#define tstbit(x,y) bitop(x,y,&)
39			#define setbit(x,y) bitop(x,y,\|=)
40			#define clrbit(x,y) bitop(x,y,&=~)
41			#define tglbit(x,y) bitop(x,y,^=)
42	greg	1.1
43	greg	2.3	FONT ourfont; / our font */
44	greg	1.1
45			typedef struct line {
46			char s; / line w/o LF */
47	greg	2.4	short sp; / character spacing */
48	greg	1.1	struct line next; / next line up */
49			} LINE;
50
51			LINE ourtext; / our text */
52			int nlines, maxline; /* text dimensions */
53	greg	2.4	int maxwidth; /* maximum line width (dvi) */
54	greg	1.1
55
56			main(argc, argv)
57			int argc;
58			char *argv[];
59			{
60			int an;
61	schorsch	2.19	SET_FILE_BINARY(stdout);
62	greg	1.1	for (an = 1; an < argc && argv[an][0] == '-'; an++)
63			switch (argv[an][1]) {
64			case 'c': /* color */
65			switch (argv[an][2]) {
66			case 'f': /* foreground */
67	greg	2.5	setcolor(fgcolor, atof(argv[an+1]),
68	greg	1.1	atof(argv[an+2]),
69			atof(argv[an+3]));
70			an += 3;
71			break;
72			case 'b': /* background */
73	greg	2.5	setcolor(bgcolor, atof(argv[an+1]),
74	greg	1.1	atof(argv[an+2]),
75			atof(argv[an+3]));
76			an += 3;
77			break;
78			default:
79			goto unkopt;
80			}
81			break;
82			case 'f': /* font */
83			fontfile = argv[++an];
84			break;
85			case 'd': /* direction */
86			switch (argv[an][2]) {
87			case 'r': /* right */
88			case 'u': /* up */
89			case 'l': /* left */
90			case 'd': /* down */
91			direct = argv[an][2];
92			break;
93			default:
94			goto unkopt;
95			}
96			break;
97	greg	2.9	case 'x': /* x resolution */
98			xsiz = atoi(argv[++an])*SSS;
99			break;
100			case 'y':
101			ysiz = atoi(argv[++an])*SSS;
102			break;
103	greg	1.1	case 'h': /* height of characters */
104	greg	2.5	cheight = atoi(argv[++an])*SSS;
105	greg	1.1	break;
106			case 'a': /* aspect ratio */
107			aspect = atof(argv[++an]);
108			break;
109	greg	2.6	case 's': /* spacing */
110			spacing = atof(argv[++an]);
111			break;
112	greg	1.1	default:;
113			unkopt:
114			fprintf(stderr, "%s: unknown option: %s\n",
115			argv[0], argv[an]);
116			exit(1);
117			}
118	greg	2.4	/* load font file */
119			ourfont = getfont(fontfile);
120	greg	1.1	/* get text */
121			if (an == argc)
122			gettext(stdin);
123			else
124			arg_text(argc-an, argv+an);
125
126			/* create bit map */
127			makemap();
128			/* convert text to bitmap */
129			maptext();
130			/* print header */
131	greg	2.16	newheader("RADIANCE", stdout);
132	greg	1.1	printargs(argc, argv, stdout);
133	greg	1.3	fputformat(COLRFMT, stdout);
134			putchar('\n');
135	greg	1.1	/* write out bitmap */
136			writemap(stdout);
137
138			exit(0);
139			}
140
141
142			makemap() /* create the bit map */
143			{
144	greg	2.13	double pictaspect;
145	greg	2.9
146	greg	1.1	if (direct == 'r' \|\| direct == 'l') {
147	greg	2.11	if (xsiz <= 0) {
148	greg	2.9	cwidth = cheight/aspect + 0.5;
149			xsiz = (long)maxwidth*cwidth >> 8;
150			ysiz = nlines*cheight;
151	greg	2.10	} else if (aspect > FTINY) {
152	greg	2.11	if (ysiz <= 0)
153			ysiz = cheight*nlines;
154	greg	2.9	pictaspect = 256nlinesaspect/maxwidth;
155			if (pictaspect*xsiz < ysiz)
156			ysiz = pictaspect*xsiz + 0.5;
157			else
158			xsiz = ysiz/pictaspect + 0.5;
159			cheight = ysiz/nlines;
160	greg	2.14	cwidth = cheight/aspect;
161	greg	2.10	} else {
162	greg	2.11	if (ysiz <= 0)
163			ysiz = cheight*nlines;
164	greg	2.10	pictaspect = (double)ysiz/xsiz;
165			aspect = pictaspectmaxwidth/(256nlines);
166			cheight = ysiz/nlines;
167	greg	2.14	cwidth = cheight/aspect;
168	greg	2.9	}
169	greg	1.1	} else { /* reverse orientation */
170	greg	2.11	if (ysiz <= 0) {
171	greg	2.9	cwidth = cheight/aspect + 0.5;
172			xsiz = nlines*cheight;
173			ysiz = (long)maxwidth*cwidth >> 8;
174	greg	2.10	} else if (aspect > FTINY) {
175	greg	2.11	if (xsiz <= 0)
176			xsiz = cheight*nlines;
177	greg	2.9	pictaspect = maxwidth/(256nlinesaspect);
178			if (pictaspect*xsiz < ysiz)
179			ysiz = pictaspect*xsiz + 0.5;
180			else
181			xsiz = ysiz/pictaspect + 0.5;
182	greg	2.10	cheight = xsiz/nlines;
183	greg	2.14	cwidth = cheight/aspect;
184	greg	2.10	} else {
185	greg	2.11	if (xsiz <= 0)
186			xsiz = cheight*nlines;
187	greg	2.10	pictaspect = (double)ysiz/xsiz;
188			aspect = maxwidth/(256nlinespictaspect);
189	greg	2.9	cheight = xsiz/nlines;
190	greg	2.14	cwidth = cheight/aspect;
191	greg	2.9	}
192	greg	1.1	}
193	greg	2.5	if (xsiz % SSS)
194			xsiz += SSS - xsiz%SSS;
195			if (ysiz % SSS)
196			ysiz += SSS - ysiz%SSS;
197	greg	1.1	xdim = (xsiz+7)/8;
198	greg	2.8	ourbitmap = (BYTE )bmalloc(ysizxdim);
199	greg	2.5	if (ourbitmap == NULL)
200			error(SYSTEM, "Out of memory in makemap");
201	greg	2.8	bzero((char )ourbitmap, ysizxdim);
202	greg	1.1	}
203
204
205			gettext(fp) /* get text from a file */
206			FILE *fp;
207			{
208			char buf[MAXLINE];
209			register LINE *curl;
210			int len;
211
212			maxline = 0;
213	greg	2.4	maxwidth = 0;
214	greg	1.1	nlines = 0;
215			while (fgets(buf, MAXLINE, fp) != NULL) {
216			curl = (LINE *)malloc(sizeof(LINE));
217			if (curl == NULL)
218			goto memerr;
219			len = strlen(buf);
220	greg	2.18	curl->s = (char *)malloc(len);
221	greg	2.4	curl->sp = (short )malloc(sizeof(short)len--);
222			if (curl->s == NULL \| curl->sp == NULL)
223	greg	1.1	goto memerr;
224	greg	2.4	if (len > maxline)
225			maxline = len;
226	greg	1.1	strncpy(curl->s, buf, len);
227			curl->s[len] = '\0';
228	greg	2.7	if (spacing < -1./256.)
229	greg	2.6	len = squeeztext(curl->sp, curl->s, ourfont,
230	greg	2.14	(int)(spacing*-256.));
231	greg	2.7	else if (spacing > 1./256.)
232	greg	2.6	len = proptext(curl->sp, curl->s, ourfont,
233	greg	2.14	(int)(spacing*256.), 3);
234	greg	2.6	else
235			len = uniftext(curl->sp, curl->s, ourfont);
236	greg	2.4	if (len > maxwidth)
237			maxwidth = len;
238	greg	1.1	curl->next = ourtext;
239			ourtext = curl;
240			nlines++;
241			}
242			return;
243			memerr:
244	greg	2.5	error(SYSTEM, "Out of memory in gettext");
245	greg	1.1	}
246
247
248			arg_text(ac, av) /* get text from arguments */
249			int ac;
250			char *av[];
251			{
252			register char *cp;
253
254			ourtext = (LINE *)malloc(sizeof(LINE));
255			if (ourtext == NULL)
256			goto memerr;
257	greg	2.18	ourtext->s = (char *)malloc(MAXLINE);
258	greg	1.1	if (ourtext->s == NULL)
259			goto memerr;
260			for (cp = ourtext->s; ac-- > 0; av++) {
261			strcpy(cp, *av);
262			cp += strlen(*av);
263			*cp++ = ' ';
264			}
265			*--cp = '\0';
266			ourtext->next = NULL;
267			maxline = strlen(ourtext->s);
268	greg	2.4	ourtext->sp = (short )malloc(sizeof(short)(maxline+1));
269			if (ourtext->sp == NULL)
270			goto memerr;
271	greg	2.14	if (spacing < -1./256.)
272	greg	2.6	maxwidth = squeeztext(ourtext->sp, ourtext->s, ourfont,
273	greg	2.14	(int)(spacing*-256.));
274			else if (spacing > 1./256.)
275	greg	2.6	maxwidth = proptext(ourtext->sp, ourtext->s, ourfont,
276	greg	2.14	(int)(spacing*256.), 3);
277	greg	2.6	else
278			maxwidth = uniftext(ourtext->sp, ourtext->s, ourfont);
279	greg	1.1	nlines = 1;
280			return;
281			memerr:
282	greg	2.5	error(SYSTEM, "Out of memory in arg_text");
283	greg	1.1	}
284
285
286			maptext() /* map our text */
287			{
288			register LINE *curl;
289	greg	2.4	int l, len;
290			register int i, c;
291	greg	1.1
292	greg	2.4	for (l = 0, curl = ourtext; curl != NULL; l += 256, curl = curl->next) {
293			len = strlen(curl->s); c = 0;
294			for (i = 0; i < len; i++) {
295			c += curl->sp[i];
296			mapglyph(ourfont->fg[curl->s[i]&0xff], c, l);
297			}
298			}
299	greg	1.1	}
300
301
302			mapglyph(gl, tx0, ty0) /* convert a glyph */
303	greg	2.3	GLYPH *gl;
304	greg	1.1	int tx0, ty0;
305			{
306			int n;
307	greg	2.3	register GORD *gp;
308	greg	1.1	int p0[2], p1[2];
309
310			if (gl == NULL)
311			return;
312
313	greg	2.3	n = gl->nverts;
314			gp = gvlist(gl);
315			mapcoord(p0, gp[2n-2]+tx0, gp[2n-1]+ty0);
316	greg	1.1	while (n--) {
317	greg	2.3	mapcoord(p1, gp[0]+tx0, gp[1]+ty0);
318	greg	1.1	mapedge(p0[0], p0[1], p1[0]-p0[0], p1[1]-p0[1]);
319			p0[0] = p1[0]; p0[1] = p1[1];
320	greg	2.3	gp += 2;
321	greg	1.1	}
322			}
323
324
325			mapcoord(p, tx, ty) /* map text to picture coordinates */
326			int p[2], tx, ty;
327			{
328			tx = (long)tx*cwidth >> 8;
329			ty = (long)ty*cheight >> 8;
330
331			switch (direct) {
332			case 'r': /* right */
333			p[0] = tx;
334			p[1] = ty;
335			return;
336			case 'u': /* up */
337			p[0] = xsiz-1-ty;
338			p[1] = tx;
339			return;
340			case 'l': /* left */
341			p[0] = xsiz-1-tx;
342			p[1] = ysiz-1-ty;
343			return;
344			case 'd': /* down */
345			p[0] = ty;
346			p[1] = ysiz-1-tx;
347			return;
348			}
349			}
350
351
352			mapedge(x, y, run, rise) /* map an edge */
353			register int x, y;
354			int run, rise;
355			{
356			int xstep;
357			int rise2, run2;
358			int n;
359
360			if (rise == 0)
361			return;
362			/* always draw up */
363			if (rise < 0) {
364			x += run;
365			y += rise;
366			rise = -rise;
367			run = -run;
368			}
369			if (run < 0) {
370			xstep = -1;
371			run = -run;
372			} else
373			xstep = 1;
374			n = rise;
375			run2 = rise2 = 0;
376			while (n)
377			if (rise2 >= run2) {
378			tglbit(x, y);
379			n--;
380			y++;
381			run2 += run;
382			} else {
383			x += xstep;
384			rise2 += rise;
385			}
386			}
387
388
389			writemap(fp) /* write out bitmap */
390			FILE *fp;
391			{
392	greg	2.5	COLR pixval[SSSSSS+1]; / possible pixel values */
393			COLOR ctmp0, ctmp1;
394	greg	2.13	double d;
395	greg	1.1	COLR *scanout;
396	greg	2.5	int x, y;
397			register int i, j;
398			int cnt;
399	greg	1.1	register int inglyph;
400
401	greg	2.5	fprintf(fp, "-Y %d +X %d\n", ysiz/SSS, xsiz/SSS);
402	greg	1.1
403	greg	2.5	scanout = (COLR )malloc(xsiz/SSSsizeof(COLR));
404			if (scanout == NULL)
405			error(SYSTEM, "Out of memory in writemap");
406			for (i = 0; i <= SSSSSS; i++) { / compute possible values */
407			copycolor(ctmp0, fgcolor);
408			d = (double)i/(SSS*SSS);
409			scalecolor(ctmp0, d);
410			copycolor(ctmp1, bgcolor);
411			d = 1.0 - d;
412			scalecolor(ctmp1, d);
413			addcolor(ctmp0, ctmp1);
414			setcolr(pixval[i], colval(ctmp0,RED),
415			colval(ctmp0,GRN), colval(ctmp0,BLU));
416	greg	1.1	}
417	greg	2.5	for (y = ysiz/SSS-1; y >= 0; y--) {
418	greg	1.1	inglyph = 0;
419	greg	2.5	for (x = 0; x < xsiz/SSS; x++) {
420			cnt = 0;
421			for (j = 0; j < SSS; j++)
422			for (i = 0; i < SSS; i++) {
423			if (tstbit(xSSS+i, ySSS+j))
424			inglyph ^= 1<<j;
425			if (inglyph & 1<<j)
426			cnt++;
427			}
428			copycolr(scanout[x], pixval[cnt]);
429	greg	1.1	}
430	greg	2.5	if (fwritecolrs(scanout, xsiz/SSS, fp) < 0) {
431	greg	1.1	fprintf(stderr, "write error in writemap\n");
432			exit(1);
433			}
434			}
435	greg	2.18	free((void *)scanout);
436	greg	1.1	}