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 = 32*SSS; /* 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 = 256*nlines*aspect/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 = pictaspect*maxwidth/(256*nlines); |
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/(256*nlines*aspect); |
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/(256*nlines*pictaspect); |
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(ysiz*xdim); |
199 |
greg |
2.5 |
if (ourbitmap == NULL) |
200 |
|
|
error(SYSTEM, "Out of memory in makemap"); |
201 |
greg |
2.8 |
bzero((char *)ourbitmap, ysiz*xdim); |
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[2*n-2]+tx0, gp[2*n-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[SSS*SSS+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/SSS*sizeof(COLR)); |
404 |
|
|
if (scanout == NULL) |
405 |
|
|
error(SYSTEM, "Out of memory in writemap"); |
406 |
|
|
for (i = 0; i <= SSS*SSS; 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(x*SSS+i, y*SSS+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 |
} |