2 * Copyright (c) 2009, 2014 The FreeBSD Foundation
5 * This software was developed by Ed Schouten under sponsorship from the
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/types.h>
34 #include <sys/fnv_hash.h>
35 #include <sys/endian.h>
36 #include <sys/param.h>
37 #include <sys/queue.h>
48 #define VFNT_MAP_NORMAL 0
49 #define VFNT_MAP_NORMAL_RH 1
50 #define VFNT_MAP_BOLD 2
51 #define VFNT_MAP_BOLD_RH 3
53 static unsigned int width = 8, wbytes, height = 16;
56 TAILQ_ENTRY(glyph) g_list;
57 SLIST_ENTRY(glyph) g_hash;
62 #define FONTCVT_NHASH 4096
63 TAILQ_HEAD(glyph_list, glyph);
64 static SLIST_HEAD(, glyph) glyph_hash[FONTCVT_NHASH];
65 static struct glyph_list glyphs[VFNT_MAPS] = {
66 TAILQ_HEAD_INITIALIZER(glyphs[0]),
67 TAILQ_HEAD_INITIALIZER(glyphs[1]),
68 TAILQ_HEAD_INITIALIZER(glyphs[2]),
69 TAILQ_HEAD_INITIALIZER(glyphs[3]),
71 static unsigned int glyph_total, glyph_count[4], glyph_unique, glyph_dupe;
74 TAILQ_ENTRY(mapping) m_list;
76 unsigned int m_length;
77 struct glyph *m_glyph;
80 TAILQ_HEAD(mapping_list, mapping);
81 static struct mapping_list maps[VFNT_MAPS] = {
82 TAILQ_HEAD_INITIALIZER(maps[0]),
83 TAILQ_HEAD_INITIALIZER(maps[1]),
84 TAILQ_HEAD_INITIALIZER(maps[2]),
85 TAILQ_HEAD_INITIALIZER(maps[3]),
87 static unsigned int mapping_total, map_count[4], map_folded_count[4],
88 mapping_unique, mapping_dupe;
95 "usage: vtfontcvt [-w width] [-h height] [-v] normal.bdf [bold.bdf] out.fnt\n");
100 add_mapping(struct glyph *gl, unsigned int c, unsigned int map_idx)
103 struct mapping_list *ml;
107 mp = malloc(sizeof *mp);
113 if (TAILQ_LAST(ml, mapping_list) != NULL &&
114 TAILQ_LAST(ml, mapping_list)->m_char >= c)
115 errx(1, "Bad ordering at character %u\n", c);
116 TAILQ_INSERT_TAIL(ml, mp, m_list);
118 map_count[map_idx]++;
125 dedup_mapping(unsigned int map_idx)
127 struct mapping *mp_bold, *mp_normal, *mp_temp;
128 unsigned normal_map_idx = map_idx - VFNT_MAP_BOLD;
130 assert(map_idx == VFNT_MAP_BOLD || map_idx == VFNT_MAP_BOLD_RH);
131 mp_normal = TAILQ_FIRST(&maps[normal_map_idx]);
132 TAILQ_FOREACH_SAFE(mp_bold, &maps[map_idx], m_list, mp_temp) {
133 while (mp_normal->m_char < mp_bold->m_char)
134 mp_normal = TAILQ_NEXT(mp_normal, m_list);
135 if (mp_bold->m_char != mp_normal->m_char)
136 errx(1, "Character %u not in normal font!\n",
138 if (mp_bold->m_glyph != mp_normal->m_glyph)
141 /* No mapping is needed if it's equal to the normal mapping. */
142 TAILQ_REMOVE(&maps[map_idx], mp_bold, m_list);
149 static struct glyph *
150 add_glyph(const uint8_t *bytes, unsigned int map_idx, int fallback)
156 glyph_count[map_idx]++;
158 hash = fnv_32_buf(bytes, wbytes * height, FNV1_32_INIT) % FONTCVT_NHASH;
159 SLIST_FOREACH(gl, &glyph_hash[hash], g_hash) {
160 if (memcmp(gl->g_data, bytes, wbytes * height) == 0) {
166 gl = malloc(sizeof *gl);
167 gl->g_data = malloc(wbytes * height);
168 memcpy(gl->g_data, bytes, wbytes * height);
170 TAILQ_INSERT_HEAD(&glyphs[map_idx], gl, g_list);
172 TAILQ_INSERT_TAIL(&glyphs[map_idx], gl, g_list);
173 SLIST_INSERT_HEAD(&glyph_hash[hash], gl, g_hash);
180 add_char(unsigned curchar, unsigned map_idx, uint8_t *bytes, uint8_t *bytes_r)
184 /* Prevent adding two glyphs for 0xFFFD */
185 if (curchar == 0xFFFD) {
186 if (map_idx < VFNT_MAP_BOLD)
187 gl = add_glyph(bytes, 0, 1);
188 } else if (curchar >= 0x20) {
189 gl = add_glyph(bytes, map_idx, 0);
190 if (add_mapping(gl, curchar, map_idx) != 0)
192 if (bytes_r != NULL) {
193 gl = add_glyph(bytes_r, map_idx + 1, 0);
194 if (add_mapping(gl, curchar,
204 parse_bitmap_line(uint8_t *left, uint8_t *right, unsigned int line,
208 unsigned int i, subline;
210 if (dwidth != width && dwidth != width * 2)
211 errx(1, "Bitmap with unsupported width %u!\n", dwidth);
213 /* Move pixel data right to simplify splitting double characters. */
214 line >>= (howmany(dwidth, 8) * 8) - dwidth;
216 for (i = dwidth / width; i > 0; i--) {
217 p = (i == 2) ? right : left;
219 subline = line & ((1 << width) - 1);
220 subline <<= (howmany(width, 8) * 8) - width;
224 } else if (wbytes == 2) {
228 errx(1, "Unsupported wbytes %u!\n", wbytes);
238 parse_bdf(FILE *fp, unsigned int map_idx)
242 uint8_t bytes[wbytes * height], bytes_r[wbytes * height];
243 unsigned int curchar = 0, dwidth = 0, i, line;
245 while ((ln = fgetln(fp, &length)) != NULL) {
246 ln[length - 1] = '\0';
248 if (strncmp(ln, "ENCODING ", 9) == 0) {
249 curchar = atoi(ln + 9);
252 if (strncmp(ln, "DWIDTH ", 7) == 0) {
253 dwidth = atoi(ln + 7);
256 if (strncmp(ln, "BITMAP", 6) == 0 &&
257 (ln[6] == ' ' || ln[6] == '\0')) {
258 for (i = 0; i < height; i++) {
259 if ((ln = fgetln(fp, &length)) == NULL)
260 errx(1, "Unexpected EOF!\n");
261 ln[length - 1] = '\0';
262 sscanf(ln, "%x", &line);
263 if (parse_bitmap_line(bytes + i * wbytes,
264 bytes_r + i * wbytes, line, dwidth) != 0)
268 if (add_char(curchar, map_idx, bytes,
269 dwidth == width * 2 ? bytes_r : NULL) != 0)
281 if (w <= 0 || w > 128)
282 errx(1, "invalid width %d", w);
284 wbytes = howmany(width, 8);
288 parse_hex(FILE *fp, unsigned int map_idx)
293 uint8_t bytes[wbytes * height], bytes_r[wbytes * height];
294 unsigned curchar = 0, i, line, chars_per_row, dwidth;
296 while ((ln = fgetln(fp, &length)) != NULL) {
297 ln[length - 1] = '\0';
299 if (strncmp(ln, "# Height: ", 10) == 0) {
300 height = atoi(ln + 10);
301 } else if (strncmp(ln, "# Width: ", 9) == 0) {
302 set_width(atoi(ln + 9));
303 } else if (sscanf(ln, "%4x:", &curchar)) {
305 chars_per_row = strlen(p) / height;
307 if (chars_per_row / 2 > (width + 7) / 8)
308 dwidth *= 2; /* Double-width character. */
309 snprintf(fmt_str, sizeof(fmt_str), "%%%ux",
312 for (i = 0; i < height; i++) {
313 sscanf(p, fmt_str, &line);
315 if (parse_bitmap_line(bytes + i * wbytes,
316 bytes_r + i * wbytes, line, dwidth) != 0)
320 if (add_char(curchar, map_idx, bytes,
321 dwidth == width * 2 ? bytes_r : NULL) != 0)
329 parse_file(const char *filename, unsigned int map_idx)
335 fp = fopen(filename, "r");
340 len = strlen(filename);
341 if (len > 4 && strcasecmp(filename + len - 4, ".hex") == 0)
342 rv = parse_hex(fp, map_idx);
344 rv = parse_bdf(fp, map_idx);
353 unsigned int i, idx = 0;
355 for (i = 0; i < VFNT_MAPS; i++)
356 TAILQ_FOREACH(gl, &glyphs[i], g_list)
361 write_glyphs(FILE *fp)
366 for (i = 0; i < VFNT_MAPS; i++) {
367 TAILQ_FOREACH(gl, &glyphs[i], g_list)
368 if (fwrite(gl->g_data, wbytes * height, 1, fp) != 1)
375 fold_mappings(unsigned int map_idx)
377 struct mapping_list *ml = &maps[map_idx];
378 struct mapping *mn, *mp, *mbase;
380 mp = mbase = TAILQ_FIRST(ml);
381 for (mp = mbase = TAILQ_FIRST(ml); mp != NULL; mp = mn) {
382 mn = TAILQ_NEXT(mp, m_list);
383 if (mn != NULL && mn->m_char == mp->m_char + 1 &&
384 mn->m_glyph->g_index == mp->m_glyph->g_index + 1)
386 mbase->m_length = mp->m_char - mbase->m_char + 1;
388 map_folded_count[map_idx]++;
392 struct file_mapping {
394 uint16_t destination;
399 write_mappings(FILE *fp, unsigned int map_idx)
401 struct mapping_list *ml = &maps[map_idx];
403 struct file_mapping fm;
404 unsigned int i = 0, j = 0;
406 TAILQ_FOREACH(mp, ml, m_list) {
408 if (mp->m_length > 0) {
410 fm.source = htobe32(mp->m_char);
411 fm.destination = htobe16(mp->m_glyph->g_index);
412 fm.length = htobe16(mp->m_length - 1);
413 if (fwrite(&fm, sizeof fm, 1, fp) != 1)
426 uint32_t glyph_count;
427 uint32_t map_count[4];
431 write_fnt(const char *filename)
434 struct file_header fh = {
438 fp = fopen(filename, "wb");
446 fh.glyph_count = htobe32(glyph_unique);
447 fh.map_count[0] = htobe32(map_folded_count[0]);
448 fh.map_count[1] = htobe32(map_folded_count[1]);
449 fh.map_count[2] = htobe32(map_folded_count[2]);
450 fh.map_count[3] = htobe32(map_folded_count[3]);
451 if (fwrite(&fh, sizeof fh, 1, fp) != 1) {
457 if (write_glyphs(fp) != 0 ||
458 write_mappings(fp, VFNT_MAP_NORMAL) != 0 ||
459 write_mappings(fp, 1) != 0 ||
460 write_mappings(fp, VFNT_MAP_BOLD) != 0 ||
461 write_mappings(fp, 3) != 0) {
472 print_font_info(void)
476 "- glyph_total: %5u\n"
477 "- glyph_normal: %5u\n"
478 "- glyph_normal_right: %5u\n"
479 "- glyph_bold: %5u\n"
480 "- glyph_bold_right: %5u\n"
481 "- glyph_unique: %5u\n"
482 "- glyph_dupe: %5u\n"
483 "- mapping_total: %5u\n"
484 "- mapping_normal: %5u\n"
485 "- mapping_normal_folded: %5u\n"
486 "- mapping_normal_right: %5u\n"
487 "- mapping_normal_right_folded: %5u\n"
488 "- mapping_bold: %5u\n"
489 "- mapping_bold_folded: %5u\n"
490 "- mapping_bold_right: %5u\n"
491 "- mapping_bold_right_folded: %5u\n"
492 "- mapping_unique: %5u\n"
493 "- mapping_dupe: %5u\n",
499 glyph_unique, glyph_dupe,
501 map_count[0], map_folded_count[0],
502 map_count[1], map_folded_count[1],
503 map_count[2], map_folded_count[2],
504 map_count[3], map_folded_count[3],
505 mapping_unique, mapping_dupe);
509 main(int argc, char *argv[])
511 int ch, val, verbose = 0;
513 assert(sizeof(struct file_header) == 32);
514 assert(sizeof(struct file_mapping) == 8);
516 while ((ch = getopt(argc, argv, "h:vw:")) != -1) {
520 if (val <= 0 || val > 128)
521 errx(1, "Invalid height %d", val);
528 set_width(atoi(optarg));
538 if (argc < 2 || argc > 3)
541 wbytes = howmany(width, 8);
543 if (parse_file(argv[0], VFNT_MAP_NORMAL) != 0)
548 if (parse_file(argv[0], VFNT_MAP_BOLD) != 0)
554 dedup_mapping(VFNT_MAP_BOLD);
555 dedup_mapping(VFNT_MAP_BOLD_RH);
560 if (write_fnt(argv[0]) != 0)