1 /*
2 * Copyright (c) 2009, 2014 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Ed Schouten under sponsorship from the
6 * FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/types.h>
31 #include <endian.h>
32 #include <sys/param.h>
33 #include <sys/queue.h>
34
35 #include <assert.h>
36 #include <err.h>
37 #include <stdint.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <stdbool.h>
41 #include <string.h>
42 #include <unistd.h>
43 #include <lz4.h>
44 #include "fnv_hash.h"
45
46 #define VFNT_MAPS 4
47 #define VFNT_MAP_NORMAL 0
48 #define VFNT_MAP_NORMAL_RH 1
49 #define VFNT_MAP_BOLD 2
50 #define VFNT_MAP_BOLD_RH 3
51
52 static unsigned int width = 8, wbytes, height = 16;
53
54 struct bbox {
55 unsigned int width; /* pixels */
56 unsigned int height;
57 int x; /* lower left corner x */
58 int y; /* lower left corner y */
59 };
60
61 static struct bbox bbox; /* font bounding box */
62 static int font_ascent; /* pixels above baseline */
63 static int font_descent; /* pixels below baseline */
64 static unsigned int default_char = 0xFFFD;
65
66 struct glyph {
67 TAILQ_ENTRY(glyph) g_list;
68 SLIST_ENTRY(glyph) g_hash;
69 uint8_t *g_data;
70 unsigned int g_index;
71 };
72
73 #define FONTCVT_NHASH 4096
74 TAILQ_HEAD(glyph_list, glyph);
75 static SLIST_HEAD(, glyph) glyph_hash[FONTCVT_NHASH];
76 static struct glyph_list glyphs[VFNT_MAPS] = {
77 TAILQ_HEAD_INITIALIZER(glyphs[0]),
78 TAILQ_HEAD_INITIALIZER(glyphs[1]),
79 TAILQ_HEAD_INITIALIZER(glyphs[2]),
80 TAILQ_HEAD_INITIALIZER(glyphs[3]),
81 };
82 static unsigned int glyph_total, glyph_count[4], glyph_unique, glyph_dupe;
83
84 struct mapping {
85 TAILQ_ENTRY(mapping) m_list;
86 unsigned int m_char;
87 unsigned int m_length;
88 struct glyph *m_glyph;
89 };
90
91 TAILQ_HEAD(mapping_list, mapping);
92 static struct mapping_list maps[VFNT_MAPS] = {
93 TAILQ_HEAD_INITIALIZER(maps[0]),
94 TAILQ_HEAD_INITIALIZER(maps[1]),
95 TAILQ_HEAD_INITIALIZER(maps[2]),
96 TAILQ_HEAD_INITIALIZER(maps[3]),
97 };
98 static unsigned int mapping_total, map_count[4], map_folded_count[4],
99 mapping_unique, mapping_dupe;
100
101 enum output_format {
102 VT_FONT, /* default */
103 VT_C_SOURCE, /* C source for built in fonts */
104 VT_C_COMPRESSED /* C source with compressed font data */
105 };
106
107 struct whitelist {
108 uint32_t c;
109 uint32_t len;
110 };
111
112 /*
113 * Compressed font glyph list. To be used with boot loader, we need to have
114 * ascii set and box drawing chars.
115 */
116 static struct whitelist c_list[] = {
117 { .c = 0, .len = 0 }, /* default char */
118 { .c = 0x20, .len = 0x5f },
119 { .c = 0x2500, .len = 0 }, /* single frame */
120 { .c = 0x2502, .len = 0 },
121 { .c = 0x250c, .len = 0 },
122 { .c = 0x2510, .len = 0 },
123 { .c = 0x2514, .len = 0 },
124 { .c = 0x2518, .len = 0 },
125 { .c = 0x2550, .len = 1 }, /* double frame */
126 { .c = 0x2554, .len = 0 },
127 { .c = 0x2557, .len = 0 },
128 { .c = 0x255a, .len = 0 },
129 { .c = 0x255d, .len = 0 },
130 };
131
132 /*
133 * Uncompressed source. For x86 we need cp437 so the vga text mode
134 * can program font into the vga card.
135 */
136 static struct whitelist s_list[] = {
137 { .c = 0, .len = 0 }, /* default char */
138 { .c = 0x20, .len = 0x5f }, /* ascii set */
139 { .c = 0xA0, .len = 0x5f }, /* latin 1 */
140 { .c = 0x0192, .len = 0 },
141 { .c = 0x0332, .len = 0 }, /* composing lower line */
142 { .c = 0x0393, .len = 0 },
143 { .c = 0x0398, .len = 0 },
144 { .c = 0x03A3, .len = 0 },
145 { .c = 0x03A6, .len = 0 },
146 { .c = 0x03A9, .len = 0 },
147 { .c = 0x03B1, .len = 1 },
148 { .c = 0x03B4, .len = 0 },
149 { .c = 0x03C0, .len = 0 },
150 { .c = 0x03C3, .len = 0 },
151 { .c = 0x03C4, .len = 0 },
152 { .c = 0x207F, .len = 0 },
153 { .c = 0x20A7, .len = 0 },
154 { .c = 0x2205, .len = 0 },
155 { .c = 0x220A, .len = 0 },
156 { .c = 0x2219, .len = 1 },
157 { .c = 0x221E, .len = 0 },
158 { .c = 0x2229, .len = 0 },
159 { .c = 0x2248, .len = 0 },
160 { .c = 0x2261, .len = 0 },
161 { .c = 0x2264, .len = 1 },
162 { .c = 0x2310, .len = 0 },
163 { .c = 0x2320, .len = 1 },
164 { .c = 0x2500, .len = 0 },
165 { .c = 0x2502, .len = 0 },
166 { .c = 0x250C, .len = 0 },
167 { .c = 0x2510, .len = 0 },
168 { .c = 0x2514, .len = 0 },
169 { .c = 0x2518, .len = 0 },
170 { .c = 0x251C, .len = 0 },
171 { .c = 0x2524, .len = 0 },
172 { .c = 0x252C, .len = 0 },
173 { .c = 0x2534, .len = 0 },
174 { .c = 0x253C, .len = 0 },
175 { .c = 0x2550, .len = 0x1c },
176 { .c = 0x2580, .len = 0 },
177 { .c = 0x2584, .len = 0 },
178 { .c = 0x2588, .len = 0 },
179 { .c = 0x258C, .len = 0 },
180 { .c = 0x2590, .len = 3 },
181 { .c = 0x25A0, .len = 0 },
182 };
183
184 bool filter = true;
185 enum output_format format = VT_FONT;
186 /* Type for write callback. */
187 typedef size_t (*vt_write)(const void *, size_t, size_t, FILE *);
188 uint8_t *uncompressed;
189
190 static void
usage(void)191 usage(void)
192 {
193
194 (void) fprintf(stderr, "usage:\tvtfontcvt "
195 "[-n] [-f font|source|compressed-source] [-w width] "
196 "[-h height]\n\t[-v] -o outfile normal.bdf [bold.bdf]\n");
197 exit(1);
198 }
199
200 static void *
xmalloc(size_t size)201 xmalloc(size_t size)
202 {
203 void *m;
204
205 if ((m = malloc(size)) == NULL)
206 errx(1, "memory allocation failure");
207 return (m);
208 }
209
210 static int
add_mapping(struct glyph * gl,unsigned int c,unsigned int map_idx)211 add_mapping(struct glyph *gl, unsigned int c, unsigned int map_idx)
212 {
213 struct mapping *mp, *v;
214 struct mapping_list *ml;
215
216 mapping_total++;
217
218 mp = xmalloc(sizeof (*mp));
219 mp->m_char = c;
220 mp->m_glyph = gl;
221 mp->m_length = 0;
222
223 ml = &maps[map_idx];
224 if (TAILQ_LAST(ml, mapping_list) != NULL &&
225 TAILQ_LAST(ml, mapping_list)->m_char >= c) {
226 TAILQ_FOREACH_REVERSE(v, ml, mapping_list, m_list) {
227 if (v->m_char < c) {
228 TAILQ_INSERT_AFTER(ml, v, mp, m_list);
229 break;
230 } else if (v->m_char == c)
231 errx(1, "Bad ordering at character %u", c);
232 }
233 } else
234 TAILQ_INSERT_TAIL(ml, mp, m_list);
235
236 map_count[map_idx]++;
237 mapping_unique++;
238
239 return (0);
240 }
241
242 static void
dedup_mapping(unsigned int map_idx)243 dedup_mapping(unsigned int map_idx)
244 {
245 struct mapping *tmp, *mp_bold, *mp_normal;
246 unsigned normal_map_idx = map_idx - VFNT_MAP_BOLD;
247
248 assert(map_idx == VFNT_MAP_BOLD || map_idx == VFNT_MAP_BOLD_RH);
249 mp_normal = TAILQ_FIRST(&maps[normal_map_idx]);
250 TAILQ_FOREACH_SAFE(mp_bold, &maps[map_idx], m_list, tmp) {
251 while (mp_normal->m_char < mp_bold->m_char)
252 mp_normal = TAILQ_NEXT(mp_normal, m_list);
253 if (mp_bold->m_char != mp_normal->m_char)
254 errx(1, "Character %u not in normal font!",
255 mp_bold->m_char);
256 if (mp_bold->m_glyph != mp_normal->m_glyph)
257 continue;
258
259 /* No mapping is needed if it's equal to the normal mapping. */
260 TAILQ_REMOVE(&maps[map_idx], mp_bold, m_list);
261 free(mp_bold);
262 mapping_dupe++;
263 }
264 }
265
266 static struct glyph *
add_glyph(const uint8_t * bytes,unsigned int map_idx,int fallback)267 add_glyph(const uint8_t *bytes, unsigned int map_idx, int fallback)
268 {
269 struct glyph *gl;
270 int hash;
271
272 glyph_total++;
273 glyph_count[map_idx]++;
274
275 hash = fnv_32_buf(bytes, wbytes * height, FNV1_32_INIT) % FONTCVT_NHASH;
276 SLIST_FOREACH(gl, &glyph_hash[hash], g_hash) {
277 if (memcmp(gl->g_data, bytes, wbytes * height) == 0) {
278 glyph_dupe++;
279 return (gl);
280 }
281 }
282
283 gl = xmalloc(sizeof (*gl));
284 gl->g_data = xmalloc(wbytes * height);
285 memcpy(gl->g_data, bytes, wbytes * height);
286 if (fallback)
287 TAILQ_INSERT_HEAD(&glyphs[map_idx], gl, g_list);
288 else
289 TAILQ_INSERT_TAIL(&glyphs[map_idx], gl, g_list);
290 SLIST_INSERT_HEAD(&glyph_hash[hash], gl, g_hash);
291
292 glyph_unique++;
293 return (gl);
294 }
295
296 static bool
check_whitelist(unsigned c)297 check_whitelist(unsigned c)
298 {
299 struct whitelist *w = NULL;
300 int i, n = 0;
301
302 if (filter == false)
303 return (true);
304
305 if (format == VT_C_SOURCE) {
306 w = s_list;
307 n = sizeof (s_list) / sizeof (s_list[0]);
308 }
309 if (format == VT_C_COMPRESSED) {
310 w = c_list;
311 n = sizeof (c_list) / sizeof (c_list[0]);
312 }
313 if (w == NULL)
314 return (true);
315 for (i = 0; i < n; i++) {
316 if (c >= w[i].c && c <= w[i].c + w[i].len)
317 return (true);
318 }
319 return (false);
320 }
321
322 static int
add_char(unsigned curchar,unsigned map_idx,uint8_t * bytes,uint8_t * bytes_r)323 add_char(unsigned curchar, unsigned map_idx, uint8_t *bytes, uint8_t *bytes_r)
324 {
325 struct glyph *gl;
326
327 /* Prevent adding two glyphs for default_char */
328 if (curchar == default_char) {
329 if (map_idx < VFNT_MAP_BOLD)
330 gl = add_glyph(bytes, 0, 1);
331 } else if (filter == false || curchar >= 0x20) {
332 gl = add_glyph(bytes, map_idx, 0);
333 if (add_mapping(gl, curchar, map_idx) != 0)
334 return (1);
335 if (bytes_r != NULL) {
336 gl = add_glyph(bytes_r, map_idx + 1, 0);
337 if (add_mapping(gl, curchar,
338 map_idx + 1) != 0)
339 return (1);
340 }
341 }
342 return (0);
343 }
344
345
346 static int
parse_bitmap_line(uint8_t * left,uint8_t * right,unsigned int line,unsigned int dwidth)347 parse_bitmap_line(uint8_t *left, uint8_t *right, unsigned int line,
348 unsigned int dwidth)
349 {
350 uint8_t *p;
351 unsigned int i, subline;
352
353 if (dwidth != width && dwidth != width * 2)
354 errx(1, "Bitmap with unsupported width %u!", dwidth);
355
356 /* Move pixel data right to simplify splitting double characters. */
357 line >>= (howmany(dwidth, 8) * 8) - dwidth;
358
359 for (i = dwidth / width; i > 0; i--) {
360 p = (i == 2) ? right : left;
361
362 subline = line & ((1 << width) - 1);
363 subline <<= (howmany(width, 8) * 8) - width;
364
365 if (wbytes == 1) {
366 *p = subline;
367 } else if (wbytes == 2) {
368 *p++ = subline >> 8;
369 *p = subline;
370 } else {
371 errx(1, "Unsupported wbytes %u!", wbytes);
372 }
373
374 line >>= width;
375 }
376
377 return (0);
378 }
379
380 static int
parse_bdf(FILE * fp,unsigned int map_idx)381 parse_bdf(FILE *fp, unsigned int map_idx)
382 {
383 char ln[BUFSIZ];
384 uint8_t bytes[wbytes * height], bytes_r[wbytes * height];
385 unsigned int curchar = 0, dwidth = 0, i, line;
386
387 memset(bytes, 0, sizeof (bytes));
388 memset(bytes_r, 0, sizeof (bytes_r));
389
390 while (fgets(ln, sizeof (ln), fp) != NULL) {
391 if (sscanf(ln, "ENCODING %u", &curchar) == 1)
392 continue;
393
394 if (sscanf(ln, "DWIDTH %u", &dwidth) == 1)
395 continue;
396
397 if (strncmp(ln, "BITMAP", 6) == 0) {
398 for (i = 0; i < height; i++) {
399 if (fgets(ln, sizeof (ln), fp) == NULL)
400 errx(1, "Unexpected EOF!");
401 if (sscanf(ln, "%x", &line) <= 0)
402 err(1, "sscanf failed at %s", ln);
403 if (parse_bitmap_line(bytes + i * wbytes,
404 bytes_r + i * wbytes, line, dwidth) != 0)
405 return (1);
406 }
407
408 if (check_whitelist(curchar) == true) {
409 if (add_char(curchar, map_idx, bytes,
410 dwidth == width * 2 ? bytes_r : NULL) != 0)
411 return (1);
412 }
413 }
414 }
415
416 return (0);
417 }
418
419 static void
set_width(int w)420 set_width(int w)
421 {
422
423 if (w <= 0 || w > 128)
424 errx(1, "invalid width %d", w);
425 width = w;
426 wbytes = howmany(width, 8);
427 }
428
429 static int
parse_hex(FILE * fp,unsigned int map_idx)430 parse_hex(FILE *fp, unsigned int map_idx)
431 {
432 char ln[BUFSIZ], *p;
433 char fmt_str[8];
434 uint8_t *bytes = NULL, *bytes_r = NULL;
435 unsigned curchar = 0, i, line, chars_per_row, dwidth;
436 int rv = 0;
437
438 while (fgets(ln, sizeof (ln), fp) != NULL) {
439 if (strncmp(ln, "# Height: ", 10) == 0) {
440 if (bytes != NULL) {
441 errx(1, "malformed input: Height tag after "
442 "font data");
443 }
444 height = atoi(ln + 10);
445 } else if (strncmp(ln, "# Width: ", 9) == 0) {
446 if (bytes != NULL) {
447 errx(1, "malformed input: Width tag after "
448 "font data");
449 }
450 set_width(atoi(ln + 9));
451 } else if (sscanf(ln, "%6x:", &curchar)) {
452 if (bytes == NULL) {
453 bytes = xmalloc(wbytes * height);
454 bytes_r = xmalloc(wbytes * height);
455 }
456 /* ln is guaranteed to have a colon here. */
457 p = strchr(ln, ':') + 1;
458 chars_per_row = strlen(p) / height;
459 dwidth = width;
460 if (chars_per_row / 2 > (width + 7) / 8)
461 dwidth *= 2; /* Double-width character. */
462 (void) snprintf(fmt_str, sizeof (fmt_str), "%%%ux",
463 chars_per_row);
464
465 for (i = 0; i < height; i++) {
466 (void) sscanf(p, fmt_str, &line);
467 p += chars_per_row;
468 if (parse_bitmap_line(bytes + i * wbytes,
469 bytes_r + i * wbytes, line, dwidth) != 0) {
470 rv = 1;
471 goto out;
472 }
473 }
474
475 if (add_char(curchar, map_idx, bytes,
476 dwidth == width * 2 ? bytes_r : NULL) != 0) {
477 rv = 1;
478 goto out;
479 }
480 }
481 }
482 out:
483 free(bytes);
484 free(bytes_r);
485 return (rv);
486 }
487
488 /* Read BDF header and set the font data. */
489 static int
parse_bdf_header(FILE * fp)490 parse_bdf_header(FILE *fp)
491 {
492 char ln[BUFSIZ];
493 char spacing = '\0'; /* Should we assume C if not specified? */
494 int ret;
495
496 while (fgets(ln, sizeof (ln), fp) != NULL) {
497 ret = sscanf(ln, "FONTBOUNDINGBOX %u %u %d %d",
498 &bbox.width, &bbox.height, &bbox.x, &bbox.y);
499 if (ret == 4)
500 continue;
501 ret = sscanf(ln, "FONT_ASCENT %u", &font_ascent);
502 if (ret == 1)
503 continue;
504 ret = sscanf(ln, "FONT_DESCENT %u", &font_descent);
505 if (ret == 1)
506 continue;
507 ret = sscanf(ln, "DEFAULT_CHAR %u", &default_char);
508 if (ret == 1) {
509 c_list[0].c = default_char;
510 s_list[0].c = default_char;
511 continue;
512 }
513 ret = sscanf(ln, "SPACING \"%c\"", &spacing);
514 if (ret == 1)
515 continue;
516 if (strncmp("ENDPROPERTIES", ln, 13) == 0)
517 break;
518 }
519 if (spacing != 'C') {
520 printf("Spacing '%c' is not supported\n", spacing);
521 return (1);
522 }
523 if (bbox.width == 0)
524 bbox.width = width;
525 set_width(bbox.width);
526
527 if (bbox.height == 0)
528 bbox.height = height;
529 height = bbox.height;
530 return (0);
531 }
532
533 static int
parse_file(const char * filename,unsigned int map_idx)534 parse_file(const char *filename, unsigned int map_idx)
535 {
536 FILE *fp;
537 size_t len;
538 int rv;
539
540 fp = fopen(filename, "r");
541 if (fp == NULL) {
542 perror(filename);
543 return (1);
544 }
545 len = strlen(filename);
546 if (len > 4 && strcasecmp(filename + len - 4, ".hex") == 0) {
547 rv = parse_hex(fp, map_idx);
548 } else {
549 if ((rv = parse_bdf_header(fp)) == 0)
550 rv = parse_bdf(fp, map_idx);
551 }
552 (void) fclose(fp);
553 return (rv);
554 }
555
556 static void
number_glyphs(void)557 number_glyphs(void)
558 {
559 struct glyph *gl;
560 unsigned int i, idx = 0;
561
562 for (i = 0; i < VFNT_MAPS; i++)
563 TAILQ_FOREACH(gl, &glyphs[i], g_list)
564 gl->g_index = idx++;
565 }
566
567 /* Note we only deal with byte stream here. */
568 static size_t
write_glyph_source(const void * ptr,size_t size,size_t nitems,FILE * stream)569 write_glyph_source(const void *ptr, size_t size, size_t nitems, FILE *stream)
570 {
571 const uint8_t *data = ptr;
572 size_t i;
573
574 size *= nitems;
575 for (i = 0; i < size; i++) {
576 if ((i % wbytes) == 0) {
577 if (fprintf(stream, "\n") < 0)
578 return (0);
579 }
580 if (fprintf(stream, "0x%02x, ", data[i]) < 0)
581 return (0);
582 }
583 if (fprintf(stream, "\n") < 0)
584 nitems = 0;
585
586 return (nitems);
587 }
588
589 /* Write to buffer */
590 static size_t
write_glyph_buf(const void * ptr,size_t size,size_t nitems,FILE * stream __unused)591 write_glyph_buf(const void *ptr, size_t size, size_t nitems,
592 FILE *stream __unused)
593 {
594 static size_t index = 0;
595
596 size *= nitems;
597 (void) memmove(uncompressed + index, ptr, size);
598 index += size;
599
600 return (nitems);
601 }
602
603 static int
write_glyphs(FILE * fp,vt_write cb)604 write_glyphs(FILE *fp, vt_write cb)
605 {
606 struct glyph *gl;
607 unsigned int i;
608
609 for (i = 0; i < VFNT_MAPS; i++) {
610 TAILQ_FOREACH(gl, &glyphs[i], g_list)
611 if (cb(gl->g_data, wbytes * height, 1, fp) != 1)
612 return (1);
613 }
614 return (0);
615 }
616
617 static void
fold_mappings(unsigned int map_idx)618 fold_mappings(unsigned int map_idx)
619 {
620 struct mapping_list *ml = &maps[map_idx];
621 struct mapping *mn, *mp, *mbase;
622
623 mp = mbase = TAILQ_FIRST(ml);
624 for (mp = mbase = TAILQ_FIRST(ml); mp != NULL; mp = mn) {
625 mn = TAILQ_NEXT(mp, m_list);
626 if (mn != NULL && mn->m_char == mp->m_char + 1 &&
627 mn->m_glyph->g_index == mp->m_glyph->g_index + 1)
628 continue;
629 mbase->m_length = mp->m_char - mbase->m_char + 1;
630 mbase = mp = mn;
631 map_folded_count[map_idx]++;
632 }
633 }
634
635 struct file_mapping {
636 uint32_t source;
637 uint16_t destination;
638 uint16_t length;
639 } __attribute__((packed));
640
641 static int
write_mappings(FILE * fp,unsigned int map_idx)642 write_mappings(FILE *fp, unsigned int map_idx)
643 {
644 struct mapping_list *ml = &maps[map_idx];
645 struct mapping *mp;
646 struct file_mapping fm;
647 unsigned int i = 0, j = 0;
648
649 TAILQ_FOREACH(mp, ml, m_list) {
650 j++;
651 if (mp->m_length > 0) {
652 i += mp->m_length;
653 fm.source = htobe32(mp->m_char);
654 fm.destination = htobe16(mp->m_glyph->g_index);
655 fm.length = htobe16(mp->m_length - 1);
656 if (fwrite(&fm, sizeof (fm), 1, fp) != 1)
657 return (1);
658 }
659 }
660 assert(i == j);
661 return (0);
662 }
663
664 static int
write_source_mappings(FILE * fp,unsigned int map_idx)665 write_source_mappings(FILE *fp, unsigned int map_idx)
666 {
667 struct mapping_list *ml = &maps[map_idx];
668 struct mapping *mp;
669 unsigned int i = 0, j = 0;
670
671 TAILQ_FOREACH(mp, ml, m_list) {
672 j++;
673 if (mp->m_length > 0) {
674 i += mp->m_length;
675 if (fprintf(fp, "\t{ 0x%08x, 0x%04x, 0x%04x },\n",
676 mp->m_char, mp->m_glyph->g_index,
677 mp->m_length - 1) < 0)
678 return (1);
679 }
680 }
681 assert(i == j);
682 return (0);
683 }
684
685 struct file_header {
686 uint8_t magic[8];
687 uint8_t width;
688 uint8_t height;
689 uint16_t pad;
690 uint32_t glyph_count;
691 uint32_t map_count[4];
692 } __attribute__((packed));
693
694 static int
write_fnt(const char * filename)695 write_fnt(const char *filename)
696 {
697 FILE *fp;
698 struct file_header fh = {
699 .magic = "VFNT0002",
700 };
701
702 fp = fopen(filename, "wb");
703 if (fp == NULL) {
704 perror(filename);
705 return (1);
706 }
707
708 fh.width = width;
709 fh.height = height;
710 fh.glyph_count = htobe32(glyph_unique);
711 fh.map_count[0] = htobe32(map_folded_count[0]);
712 fh.map_count[1] = htobe32(map_folded_count[1]);
713 fh.map_count[2] = htobe32(map_folded_count[2]);
714 fh.map_count[3] = htobe32(map_folded_count[3]);
715 if (fwrite(&fh, sizeof (fh), 1, fp) != 1) {
716 perror(filename);
717 (void) fclose(fp);
718 return (1);
719 }
720
721 if (write_glyphs(fp, &fwrite) != 0 ||
722 write_mappings(fp, VFNT_MAP_NORMAL) != 0 ||
723 write_mappings(fp, 1) != 0 ||
724 write_mappings(fp, VFNT_MAP_BOLD) != 0 ||
725 write_mappings(fp, 3) != 0) {
726 perror(filename);
727 (void) fclose(fp);
728 return (1);
729 }
730
731 (void) fclose(fp);
732 return (0);
733 }
734
735 static int
write_fnt_source(bool lz4,const char * filename)736 write_fnt_source(bool lz4, const char *filename)
737 {
738 FILE *fp;
739 int rv = 1;
740 size_t uncompressed_size = wbytes * height * glyph_unique;
741 size_t compressed_size = uncompressed_size;
742 uint8_t *compressed = NULL;
743
744 fp = fopen(filename, "w");
745 if (fp == NULL) {
746 perror(filename);
747 return (1);
748 }
749
750 if (lz4 == true) {
751 uncompressed = xmalloc(uncompressed_size);
752 compressed = xmalloc(uncompressed_size);
753 }
754 if (fprintf(fp, "/* Generated %ux%u console font source. */\n\n",
755 width, height) < 0)
756 goto done;
757 if (fprintf(fp, "#include <sys/types.h>\n") < 0)
758 goto done;
759 if (fprintf(fp, "#include <sys/param.h>\n") < 0)
760 goto done;
761 if (fprintf(fp, "#include <sys/font.h>\n\n") < 0)
762 goto done;
763
764 /* Write font bytes. */
765 if (fprintf(fp, "static uint8_t FONTDATA_%ux%u[] = {\n",
766 width, height) < 0)
767 goto done;
768 if (lz4 == true) {
769 if (write_glyphs(fp, &write_glyph_buf) != 0)
770 goto done;
771 compressed_size = lz4_compress(uncompressed, compressed,
772 uncompressed_size, compressed_size, 0);
773 if (write_glyph_source(compressed, compressed_size, 1, fp) != 1)
774 goto done;
775 free(uncompressed);
776 free(compressed);
777 } else {
778 if (write_glyphs(fp, &write_glyph_source) != 0)
779 goto done;
780 }
781 if (fprintf(fp, "};\n\n") < 0)
782 goto done;
783
784 /* Write font maps. */
785 if (!TAILQ_EMPTY(&maps[VFNT_MAP_NORMAL])) {
786 if (fprintf(fp, "static struct font_map "
787 "FONTMAP_NORMAL_%ux%u[] = {\n", width, height) < 0)
788 goto done;
789 if (write_source_mappings(fp, VFNT_MAP_NORMAL) != 0)
790 goto done;
791 if (fprintf(fp, "};\n\n") < 0)
792 goto done;
793 }
794 if (!TAILQ_EMPTY(&maps[VFNT_MAP_NORMAL_RH])) {
795 if (fprintf(fp, "static struct font_map "
796 "FONTMAP_NORMAL_RH_%ux%u[] = {\n", width, height) < 0)
797 goto done;
798 if (write_source_mappings(fp, VFNT_MAP_NORMAL_RH) != 0)
799 goto done;
800 if (fprintf(fp, "};\n\n") < 0)
801 goto done;
802 }
803 if (!TAILQ_EMPTY(&maps[VFNT_MAP_BOLD])) {
804 if (fprintf(fp, "static struct font_map "
805 "FONTMAP_BOLD_%ux%u[] = {\n", width, height) < 0)
806 goto done;
807 if (write_source_mappings(fp, VFNT_MAP_BOLD) != 0)
808 goto done;
809 if (fprintf(fp, "};\n\n") < 0)
810 goto done;
811 }
812 if (!TAILQ_EMPTY(&maps[VFNT_MAP_BOLD_RH])) {
813 if (fprintf(fp, "static struct font_map "
814 "FONTMAP_BOLD_RH_%ux%u[] = {\n", width, height) < 0)
815 goto done;
816 if (write_source_mappings(fp, VFNT_MAP_BOLD_RH) != 0)
817 goto done;
818 if (fprintf(fp, "};\n\n") < 0)
819 goto done;
820 }
821
822 /* Write struct font. */
823 if (fprintf(fp, "struct font font_%ux%u = {\n",
824 width, height) < 0)
825 goto done;
826 if (fprintf(fp, "\t.vf_map\t= {\n") < 0)
827 goto done;
828 if (TAILQ_EMPTY(&maps[VFNT_MAP_NORMAL])) {
829 if (fprintf(fp, "\t\t\tNULL,\n") < 0)
830 goto done;
831 } else {
832 if (fprintf(fp, "\t\t\tFONTMAP_NORMAL_%ux%u,\n",
833 width, height) < 0)
834 goto done;
835 }
836 if (TAILQ_EMPTY(&maps[VFNT_MAP_NORMAL_RH])) {
837 if (fprintf(fp, "\t\t\tNULL,\n") < 0)
838 goto done;
839 } else {
840 if (fprintf(fp, "\t\t\tFONTMAP_NORMAL_RH_%ux%u,\n",
841 width, height) < 0)
842 goto done;
843 }
844 if (TAILQ_EMPTY(&maps[VFNT_MAP_BOLD])) {
845 if (fprintf(fp, "\t\t\tNULL,\n") < 0)
846 goto done;
847 } else {
848 if (fprintf(fp, "\t\t\tFONTMAP_BOLD_%ux%u,\n",
849 width, height) < 0)
850 goto done;
851 }
852 if (TAILQ_EMPTY(&maps[VFNT_MAP_BOLD_RH])) {
853 if (fprintf(fp, "\t\t\tNULL\n") < 0)
854 goto done;
855 } else {
856 if (fprintf(fp, "\t\t\tFONTMAP_BOLD_RH_%ux%u\n",
857 width, height) < 0)
858 goto done;
859 }
860 if (fprintf(fp, "\t\t},\n") < 0)
861 goto done;
862 if (lz4 == true) {
863 if (fprintf(fp, "\t.vf_bytes\t= NULL,\n") < 0)
864 goto done;
865 } else {
866 if (fprintf(fp, "\t.vf_bytes\t= FONTDATA_%ux%u,\n",
867 width, height) < 0) {
868 goto done;
869 }
870 }
871 if (fprintf(fp, "\t.vf_width\t= %u,\n", width) < 0)
872 goto done;
873 if (fprintf(fp, "\t.vf_height\t= %u,\n", height) < 0)
874 goto done;
875 if (fprintf(fp, "\t.vf_map_count\t= { %u, %u, %u, %u }\n",
876 map_folded_count[0], map_folded_count[1], map_folded_count[2],
877 map_folded_count[3]) < 0) {
878 goto done;
879 }
880 if (fprintf(fp, "};\n\n") < 0)
881 goto done;
882
883 /* Write bitmap data. */
884 if (fprintf(fp, "bitmap_data_t font_data_%ux%u = {\n",
885 width, height) < 0)
886 goto done;
887 if (fprintf(fp, "\t.width\t= %u,\n", width) < 0)
888 goto done;
889 if (fprintf(fp, "\t.height\t= %u,\n", height) < 0)
890 goto done;
891 if (lz4 == true) {
892 if (fprintf(fp, "\t.compressed_size\t= %u,\n",
893 compressed_size) < 0) {
894 goto done;
895 }
896 if (fprintf(fp, "\t.uncompressed_size\t= %u,\n",
897 uncompressed_size) < 0) {
898 goto done;
899 }
900 if (fprintf(fp, "\t.compressed_data\t= FONTDATA_%ux%u,\n",
901 width, height) < 0) {
902 goto done;
903 }
904 } else {
905 if (fprintf(fp, "\t.compressed_size\t= 0,\n") < 0)
906 goto done;
907 if (fprintf(fp, "\t.uncompressed_size\t= %u,\n",
908 uncompressed_size) < 0) {
909 goto done;
910 }
911 if (fprintf(fp, "\t.compressed_data\t= NULL,\n") < 0)
912 goto done;
913 }
914 if (fprintf(fp, "\t.font = &font_%ux%u\n", width, height) < 0)
915 goto done;
916 if (fprintf(fp, "};\n") < 0)
917 goto done;
918
919 rv = 0;
920 done:
921 if (rv != 0)
922 perror(filename);
923 (void) fclose(fp);
924 return (0);
925 }
926
927 static void
print_font_info(void)928 print_font_info(void)
929 {
930 printf(
931 "Statistics:\n"
932 "- glyph_total: %6u\n"
933 "- glyph_normal: %6u\n"
934 "- glyph_normal_right: %6u\n"
935 "- glyph_bold: %6u\n"
936 "- glyph_bold_right: %6u\n"
937 "- glyph_unique: %6u\n"
938 "- glyph_dupe: %6u\n"
939 "- mapping_total: %6u\n"
940 "- mapping_normal: %6u\n"
941 "- mapping_normal_folded: %6u\n"
942 "- mapping_normal_right: %6u\n"
943 "- mapping_normal_right_folded: %6u\n"
944 "- mapping_bold: %6u\n"
945 "- mapping_bold_folded: %6u\n"
946 "- mapping_bold_right: %6u\n"
947 "- mapping_bold_right_folded: %6u\n"
948 "- mapping_unique: %6u\n"
949 "- mapping_dupe: %6u\n",
950 glyph_total,
951 glyph_count[0],
952 glyph_count[1],
953 glyph_count[2],
954 glyph_count[3],
955 glyph_unique, glyph_dupe,
956 mapping_total,
957 map_count[0], map_folded_count[0],
958 map_count[1], map_folded_count[1],
959 map_count[2], map_folded_count[2],
960 map_count[3], map_folded_count[3],
961 mapping_unique, mapping_dupe);
962 }
963
964 int
main(int argc,char * argv[])965 main(int argc, char *argv[])
966 {
967 int ch, val, verbose = 0, rv = 0;
968 char *outfile = NULL;
969
970 assert(sizeof (struct file_header) == 32);
971 assert(sizeof (struct file_mapping) == 8);
972
973 while ((ch = getopt(argc, argv, "nf:h:vw:o:")) != -1) {
974 switch (ch) {
975 case 'f':
976 if (strcmp(optarg, "font") == 0)
977 format = VT_FONT;
978 else if (strcmp(optarg, "source") == 0)
979 format = VT_C_SOURCE;
980 else if (strcmp(optarg, "compressed-source") == 0)
981 format = VT_C_COMPRESSED;
982 else
983 errx(1, "Invalid format: %s", optarg);
984 break;
985 case 'h':
986 val = atoi(optarg);
987 if (val <= 0 || val > 128)
988 errx(1, "Invalid height %d", val);
989 height = val;
990 break;
991 case 'n':
992 filter = false;
993 break;
994 case 'o':
995 outfile = optarg;
996 break;
997 case 'v':
998 verbose = 1;
999 break;
1000 case 'w':
1001 set_width(atoi(optarg));
1002 break;
1003 case '?':
1004 default:
1005 usage();
1006 }
1007 }
1008 argc -= optind;
1009 argv += optind;
1010
1011 if (outfile == NULL || argc < 1 || argc > 2)
1012 usage();
1013
1014 wbytes = howmany(width, 8);
1015
1016 if (parse_file(argv[0], VFNT_MAP_NORMAL) != 0)
1017 return (1);
1018 argc--;
1019 argv++;
1020 if (argc == 1) {
1021 if (parse_file(argv[0], VFNT_MAP_BOLD) != 0)
1022 return (1);
1023 argc--;
1024 argv++;
1025 }
1026 number_glyphs();
1027 dedup_mapping(VFNT_MAP_BOLD);
1028 dedup_mapping(VFNT_MAP_BOLD_RH);
1029 fold_mappings(0);
1030 fold_mappings(1);
1031 fold_mappings(2);
1032 fold_mappings(3);
1033
1034 switch (format) {
1035 case VT_FONT:
1036 rv = write_fnt(outfile);
1037 break;
1038 case VT_C_SOURCE:
1039 rv = write_fnt_source(false, outfile);
1040 break;
1041 case VT_C_COMPRESSED:
1042 rv = write_fnt_source(true, outfile);
1043 break;
1044 }
1045
1046 if (verbose)
1047 print_font_info();
1048
1049 return (rv);
1050 }
1051