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Authored by arichardson on Sep 10 2020, 1:17 PM.
/*-
* Copyright (c) 2009, 2014 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Ed Schouten under sponsorship from the
* FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/endian.h>
#include <sys/fnv_hash.h>
#include <sys/font.h>
#include <sys/queue.h>
#include <assert.h>
#include <err.h>
#include <lz4.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define VFNT_MAXGLYPHS 131072
#define VFNT_MAXDIMENSION 128
static unsigned int width = 8, wbytes, height = 16;
struct glyph {
TAILQ_ENTRY(glyph) g_list;
SLIST_ENTRY(glyph) g_hash;
uint8_t *g_data;
unsigned int g_index;
};
#define FONTCVT_NHASH 4096
TAILQ_HEAD(glyph_list, glyph);
static SLIST_HEAD(, glyph) glyph_hash[FONTCVT_NHASH];
static struct glyph_list glyphs[VFNT_MAPS] = {
TAILQ_HEAD_INITIALIZER(glyphs[0]),
TAILQ_HEAD_INITIALIZER(glyphs[1]),
TAILQ_HEAD_INITIALIZER(glyphs[2]),
TAILQ_HEAD_INITIALIZER(glyphs[3]),
};
static unsigned int glyph_total, glyph_count[4], glyph_unique, glyph_dupe;
struct mapping {
TAILQ_ENTRY(mapping) m_list;
unsigned int m_char;
unsigned int m_length;
struct glyph *m_glyph;
};
TAILQ_HEAD(mapping_list, mapping);
static struct mapping_list maps[VFNT_MAPS] = {
TAILQ_HEAD_INITIALIZER(maps[0]),
TAILQ_HEAD_INITIALIZER(maps[1]),
TAILQ_HEAD_INITIALIZER(maps[2]),
TAILQ_HEAD_INITIALIZER(maps[3]),
};
static unsigned int mapping_total, map_count[4], map_folded_count[4],
mapping_unique, mapping_dupe;
enum output_format {
VT_FONT, /* default */
VT_C_SOURCE, /* C source for built in fonts */
VT_C_COMPRESSED /* C source with compressed font data */
};
struct whitelist {
uint32_t c;
uint32_t len;
};
/*
* Compressed font glyph list. To be used with boot loader, we need to have
* ascii set and box drawing chars.
*/
static struct whitelist c_list[] = {
{ .c = 0, .len = 0 }, /* deault char */
{ .c = 0x20, .len = 0x5f },
{ .c = 0x2500, .len = 0 }, /* single frame */
{ .c = 0x2502, .len = 0 },
{ .c = 0x250c, .len = 0 },
{ .c = 0x2510, .len = 0 },
{ .c = 0x2514, .len = 0 },
{ .c = 0x2518, .len = 0 },
{ .c = 0x2550, .len = 1 }, /* double frame */
{ .c = 0x2554, .len = 0 },
{ .c = 0x2557, .len = 0 },
{ .c = 0x255a, .len = 0 },
{ .c = 0x255d, .len = 0 },
};
/*
* Uncompressed source. For x86 we need cp437 so the vga text mode
* can program font into the vga card.
*/
static struct whitelist s_list[] = {
{ .c = 0, .len = 0 }, /* deault char */
{ .c = 0x20, .len = 0x5f }, /* ascii set */
{ .c = 0xA0, .len = 0x5f }, /* latin 1 */
{ .c = 0x0192, .len = 0 },
{ .c = 0x0332, .len = 0 }, /* composing lower line */
{ .c = 0x0393, .len = 0 },
{ .c = 0x0398, .len = 0 },
{ .c = 0x03A3, .len = 0 },
{ .c = 0x03A6, .len = 0 },
{ .c = 0x03A9, .len = 0 },
{ .c = 0x03B1, .len = 1 },
{ .c = 0x03B4, .len = 0 },
{ .c = 0x03C0, .len = 0 },
{ .c = 0x03C3, .len = 0 },
{ .c = 0x03C4, .len = 0 },
{ .c = 0x207F, .len = 0 },
{ .c = 0x20A7, .len = 0 },
{ .c = 0x2205, .len = 0 },
{ .c = 0x220A, .len = 0 },
{ .c = 0x2219, .len = 1 },
{ .c = 0x221E, .len = 0 },
{ .c = 0x2229, .len = 0 },
{ .c = 0x2248, .len = 0 },
{ .c = 0x2261, .len = 0 },
{ .c = 0x2264, .len = 1 },
{ .c = 0x2310, .len = 0 },
{ .c = 0x2320, .len = 1 },
{ .c = 0x2500, .len = 0 },
{ .c = 0x2502, .len = 0 },
{ .c = 0x250C, .len = 0 },
{ .c = 0x2510, .len = 0 },
{ .c = 0x2514, .len = 0 },
{ .c = 0x2518, .len = 0 },
{ .c = 0x251C, .len = 0 },
{ .c = 0x2524, .len = 0 },
{ .c = 0x252C, .len = 0 },
{ .c = 0x2534, .len = 0 },
{ .c = 0x253C, .len = 0 },
{ .c = 0x2550, .len = 0x1c },
{ .c = 0x2580, .len = 0 },
{ .c = 0x2584, .len = 0 },
{ .c = 0x2588, .len = 0 },
{ .c = 0x258C, .len = 0 },
{ .c = 0x2590, .len = 3 },
{ .c = 0x25A0, .len = 0 },
};
static bool filter = true;
static enum output_format format = VT_FONT;
/* Type for write callback. */
typedef size_t (*vt_write)(const void *, size_t, size_t, FILE *);
static uint8_t *uncompressed;
static void
usage(void)
{
(void)fprintf(stderr,
"usage: vtfontcvt "
"[-n] [-f font|source|compressed-source] [-w width] "
"[-h height]\n\t[-v] normal.bdf [bold.bdf] out.fnt\n");
exit(1);
}
static void *
xmalloc(size_t size)
{
void *m;
if ((m = calloc(1, size)) == NULL)
errx(1, "memory allocation failure");
return (m);
}
static int
add_mapping(struct glyph *gl, unsigned int c, unsigned int map_idx)
{
struct mapping *mp, *mp_temp;
struct mapping_list *ml;
mapping_total++;
mp = xmalloc(sizeof *mp);
mp->m_char = c;
mp->m_glyph = gl;
mp->m_length = 0;
ml = &maps[map_idx];
if (TAILQ_LAST(ml, mapping_list) == NULL ||
TAILQ_LAST(ml, mapping_list)->m_char < c) {
/* Common case: empty list or new char at end of list. */
TAILQ_INSERT_TAIL(ml, mp, m_list);
} else {
/* Find insertion point for char; cannot be at end. */
TAILQ_FOREACH (mp_temp, ml, m_list) {
if (mp_temp->m_char >= c) {
TAILQ_INSERT_BEFORE(mp_temp, mp, m_list);
break;
}
}
}
map_count[map_idx]++;
mapping_unique++;
return (0);
}
static int
dedup_mapping(unsigned int map_idx)
{
struct mapping *mp_bold, *mp_normal, *mp_temp;
unsigned normal_map_idx = map_idx - VFNT_MAP_BOLD;
assert(map_idx == VFNT_MAP_BOLD || map_idx == VFNT_MAP_BOLD_RIGHT);
mp_normal = TAILQ_FIRST(&maps[normal_map_idx]);
TAILQ_FOREACH_SAFE (mp_bold, &maps[map_idx], m_list, mp_temp) {
while (mp_normal->m_char < mp_bold->m_char)
mp_normal = TAILQ_NEXT(mp_normal, m_list);
if (mp_bold->m_char != mp_normal->m_char)
errx(1, "Character %u not in normal font!",
mp_bold->m_char);
if (mp_bold->m_glyph != mp_normal->m_glyph)
continue;
/* No mapping is needed if it's equal to the normal mapping. */
TAILQ_REMOVE(&maps[map_idx], mp_bold, m_list);
free(mp_bold);
mapping_dupe++;
}
return (0);
}
static struct glyph *
add_glyph(const uint8_t *bytes, unsigned int map_idx, int fallback)
{
struct glyph *gl;
int hash;
glyph_total++;
glyph_count[map_idx]++;
/* Return existing glyph if we have an identical one. */
hash = fnv_32_buf(bytes, wbytes * height, FNV1_32_INIT) % FONTCVT_NHASH;
SLIST_FOREACH (gl, &glyph_hash[hash], g_hash) {
if (memcmp(gl->g_data, bytes, wbytes * height) == 0) {
glyph_dupe++;
return (gl);
}
}
/* Allocate new glyph. */
gl = xmalloc(sizeof *gl);
gl->g_data = xmalloc(wbytes * height);
memcpy(gl->g_data, bytes, wbytes * height);
if (fallback)
TAILQ_INSERT_HEAD(&glyphs[map_idx], gl, g_list);
else
TAILQ_INSERT_TAIL(&glyphs[map_idx], gl, g_list);
SLIST_INSERT_HEAD(&glyph_hash[hash], gl, g_hash);
glyph_unique++;
if (glyph_unique > VFNT_MAXGLYPHS)
errx(1, "too many glyphs (%u)", glyph_unique);
return (gl);
}
static bool
check_whitelist(unsigned c)
{
struct whitelist *w = NULL;
int i, n = 0;
if (filter == false)
return (true);
if (format == VT_C_SOURCE) {
w = s_list;
n = sizeof(s_list) / sizeof(s_list[0]);
}
if (format == VT_C_COMPRESSED) {
w = c_list;
n = sizeof(c_list) / sizeof(c_list[0]);
}
if (w == NULL)
return (true);
for (i = 0; i < n; i++) {
if (c >= w[i].c && c <= w[i].c + w[i].len)
return (true);
}
return (false);
}
static int
add_char(unsigned curchar, unsigned map_idx, uint8_t *bytes, uint8_t *bytes_r)
{
struct glyph *gl;
/* Prevent adding two glyphs for 0xFFFD */
if (curchar == 0xFFFD) {
if (map_idx < VFNT_MAP_BOLD)
gl = add_glyph(bytes, 0, 1);
} else if (filter == false || curchar >= 0x20) {
gl = add_glyph(bytes, map_idx, 0);
if (add_mapping(gl, curchar, map_idx) != 0)
return (1);
if (bytes_r != NULL) {
gl = add_glyph(bytes_r, map_idx + 1, 0);
if (add_mapping(gl, curchar, map_idx + 1) != 0)
return (1);
}
}
return (0);
}
/*
* Right-shift glyph row.
*/
static void
rshift_row(uint8_t *buf, size_t len, size_t shift)
{
ssize_t i, off_byte = shift / 8;
size_t off_bit = shift % 8;
if (shift == 0)
return;
for (i = len - 1; i >= 0; i--)
buf[i] = (i >= off_byte ? buf[i - off_byte] >> off_bit : 0) |
(i > off_byte ? buf[i - off_byte - 1] << (8 - off_bit) : 0);
}
/*
* Split double-width characters into left and right half. Single-width
* characters in _left_ only.
*/
static int
split_row(uint8_t *left, uint8_t *right, uint8_t *line, size_t w)
{
size_t s, i;
s = wbytes * 8 - width;
memcpy(left, line, wbytes);
*(left + wbytes - 1) &= 0xFF << s;
if (w > width) { /* Double-width character. */
uint8_t t;
for (i = 0; i < wbytes; i++) {
t = *(line + wbytes + i - 1);
t <<= 8 - s;
t |= *(line + wbytes + i) >> s;
*(right + i) = t;
}
*(right + wbytes - 1) &= 0xFF << s;
}
return (0);
}
static void
set_height(int h)
{
if (h <= 0 || h > VFNT_MAXDIMENSION)
errx(1, "invalid height %d", h);
height = h;
}
static void
set_width(int w)
{
if (w <= 0 || w > VFNT_MAXDIMENSION)
errx(1, "invalid width %d", w);
width = w;
wbytes = howmany(width, 8);
}
static int
parse_bdf(FILE *fp, unsigned int map_idx)
{
char *ln, *p;
size_t length;
uint8_t *line, *bytes, *bytes_r;
unsigned int curchar = 0, i, j, linenum = 0, bbwbytes;
int bbw, bbh, bbox, bboy; /* Glyph bounding box. */
int fbbw = 0, fbbh, fbbox, fbboy; /* Font bounding box. */
int dwidth = 0, dwy = 0;
int rv = -1;
char spc = '\0';
/*
* Step 1: Parse FONT logical font descriptor and FONTBOUNDINGBOX
* bounding box.
*/
while ((ln = fgetln(fp, &length)) != NULL) {
linenum++;
ln[length - 1] = '\0';
if (strncmp(ln, "FONT ", 5) == 0) {
p = ln + 5;
i = 0;
while ((p = strchr(p, '-')) != NULL) {
p++;
i++;
if (i == 11) {
spc = *p;
break;
}
}
} else if (strncmp(ln, "FONTBOUNDINGBOX ", 16) == 0) {
if (sscanf(ln + 16, "%d %d %d %d", &fbbw, &fbbh, &fbbox,
&fbboy) != 4)
errx(1, "invalid FONTBOUNDINGBOX at line %u",
linenum);
set_width(fbbw);
set_height(fbbh);
break;
}
}
if (fbbw == 0)
errx(1, "broken font header");
if (spc != 'c' && spc != 'C')
errx(1, "font spacing \"C\" (character cell) required");
/* Step 2: Validate DWIDTH (Device Width) of all glyphs. */
while ((ln = fgetln(fp, &length)) != NULL) {
linenum++;
ln[length - 1] = '\0';
if (strncmp(ln, "DWIDTH ", 7) == 0) {
if (sscanf(ln + 7, "%d %d", &dwidth, &dwy) != 2)
errx(1, "invalid DWIDTH at line %u", linenum);
if (dwy != 0 || (dwidth != fbbw && dwidth * 2 != fbbw))
errx(1,
"bitmap with unsupported DWIDTH %d %d at line %u",
dwidth, dwy, linenum);
if (dwidth < fbbw)
set_width(dwidth);
}
}
/* Step 3: Restart at the beginning of the file and read glyph data. */
dwidth = bbw = bbh = 0;
rewind(fp);
linenum = 0;
bbwbytes = 0; /* GCC 4.2.1 "may be used uninitialized" workaround. */
bytes = xmalloc(wbytes * height);
bytes_r = xmalloc(wbytes * height);
line = xmalloc(wbytes * 2);
while ((ln = fgetln(fp, &length)) != NULL) {
linenum++;
ln[length - 1] = '\0';
if (strncmp(ln, "ENCODING ", 9) == 0) {
curchar = atoi(ln + 9);
} else if (strncmp(ln, "DWIDTH ", 7) == 0) {
dwidth = atoi(ln + 7);
} else if (strncmp(ln, "BBX ", 4) == 0) {
if (sscanf(ln + 4, "%d %d %d %d", &bbw, &bbh, &bbox,
&bboy) != 4)
errx(1, "invalid BBX at line %u", linenum);
if (bbw < 1 || bbh < 1 || bbw > fbbw || bbh > fbbh ||
bbox < fbbox || bboy < fbboy ||
bbh + bboy > fbbh + fbboy)
errx(1,
"broken bitmap with BBX %d %d %d %d at line %u",
bbw, bbh, bbox, bboy, linenum);
bbwbytes = howmany(bbw, 8);
} else if (strncmp(ln, "BITMAP", 6) == 0 &&
(ln[6] == ' ' || ln[6] == '\0')) {
if (dwidth == 0 || bbw == 0 || bbh == 0)
errx(1, "broken char header at line %u!",
linenum);
memset(bytes, 0, wbytes * height);
memset(bytes_r, 0, wbytes * height);
/*
* Assume that the next _bbh_ lines are bitmap data.
* ENDCHAR is allowed to terminate the bitmap
* early but is not otherwise checked; any extra data
* is ignored.
*/
for (i = (fbbh + fbboy) - (bbh + bboy);
i < (unsigned int)((fbbh + fbboy) - bboy); i++) {
if ((ln = fgetln(fp, &length)) == NULL)
errx(1, "unexpected EOF");
linenum++;
ln[length - 1] = '\0';
if (strcmp(ln, "ENDCHAR") == 0)
break;
if (strlen(ln) < bbwbytes * 2)
errx(1, "broken bitmap at line %u",
linenum);
memset(line, 0, wbytes * 2);
for (j = 0; j < bbwbytes; j++) {
unsigned int val;
if (sscanf(ln + j * 2, "%2x", &val) ==
0)
break;
*(line + j) = (uint8_t)val;
}
rshift_row(line, wbytes * 2, bbox - fbbox);
rv = split_row(bytes + i * wbytes,
bytes_r + i * wbytes, line, dwidth);
if (rv != 0)
goto out;
}
if (check_whitelist(curchar) == true) {
rv = add_char(curchar, map_idx, bytes,
dwidth > (int)width ? bytes_r : NULL);
if (rv != 0)
goto out;
}
dwidth = bbw = bbh = 0;
}
}
out:
free(bytes);
free(bytes_r);
free(line);
return (rv);
}
static int
parse_hex(FILE *fp, unsigned int map_idx)
{
char *ln, *p;
size_t length;
uint8_t *bytes = NULL, *bytes_r = NULL, *line = NULL;
unsigned curchar = 0, gwidth, gwbytes, i, j, chars_per_row;
int rv = 0;
while ((ln = fgetln(fp, &length)) != NULL) {
ln[length - 1] = '\0';
if (strncmp(ln, "# Height: ", 10) == 0) {
if (bytes != NULL)
errx(1,
"malformed input: Height tag after font data");
set_height(atoi(ln + 10));
} else if (strncmp(ln, "# Width: ", 9) == 0) {
if (bytes != NULL)
errx(1,
"malformed input: Width tag after font data");
set_width(atoi(ln + 9));
} else if (sscanf(ln, "%6x:", &curchar)) {
if (bytes == NULL) {
bytes = xmalloc(wbytes * height);
bytes_r = xmalloc(wbytes * height);
line = xmalloc(wbytes * 2);
}
/* ln is guaranteed to have a colon here. */
p = strchr(ln, ':') + 1;
chars_per_row = strlen(p) / height;
if (chars_per_row < wbytes * 2)
errx(1,
"malformed input: broken bitmap, character %06x",
curchar);
gwidth = width * 2;
gwbytes = howmany(gwidth, 8);
if (chars_per_row < gwbytes * 2 || gwidth <= 8) {
gwidth = width; /* Single-width character. */
gwbytes = wbytes;
}
for (i = 0; i < height; i++) {
for (j = 0; j < gwbytes; j++) {
unsigned int val;
if (sscanf(p + j * 2, "%2x", &val) == 0)
break;
*(line + j) = (uint8_t)val;
}
rv = split_row(bytes + i * wbytes,
bytes_r + i * wbytes, line, gwidth);
if (rv != 0)
goto out;
p += gwbytes * 2;
}
if (check_whitelist(curchar) == true) {
rv = add_char(curchar, map_idx, bytes,
gwidth != width ? bytes_r : NULL);
if (rv != 0)
goto out;
}
}
}
out:
free(bytes);
free(bytes_r);
free(line);
return (rv);
}
static int
parse_file(const char *filename, unsigned int map_idx)
{
FILE *fp;
size_t len;
int rv;
fp = fopen(filename, "r");
if (fp == NULL) {
perror(filename);
return (1);
}
len = strlen(filename);
if (len > 4 && strcasecmp(filename + len - 4, ".hex") == 0)
rv = parse_hex(fp, map_idx);
else
rv = parse_bdf(fp, map_idx);
fclose(fp);
return (rv);
}
static void
number_glyphs(void)
{
struct glyph *gl;
unsigned int i, idx = 0;
for (i = 0; i < VFNT_MAPS; i++)
TAILQ_FOREACH (gl, &glyphs[i], g_list)
gl->g_index = idx++;
}
/* Note we only deal with byte stream here. */
static size_t
write_glyph_source(const void *ptr, size_t size, size_t nitems, FILE *stream)
{
const uint8_t *data = ptr;
size_t i;
size *= nitems;
for (i = 0; i < size; i++) {
if ((i % wbytes) == 0) {
if (fprintf(stream, "\n") < 0)
return (0);
}
if (fprintf(stream, "0x%02x, ", data[i]) < 0)
return (0);
}
if (fprintf(stream, "\n") < 0)
nitems = 0;
return (nitems);
}
/* Write to buffer */
static size_t
write_glyph_buf(
const void *ptr, size_t size, size_t nitems, FILE *stream __unused)
{
static size_t index = 0;
size *= nitems;
(void)memmove(uncompressed + index, ptr, size);
index += size;
return (nitems);
}
static int
write_glyphs(FILE *fp, vt_write cb)
{
struct glyph *gl;
unsigned int i;
for (i = 0; i < VFNT_MAPS; i++) {
TAILQ_FOREACH (gl, &glyphs[i], g_list)
if (cb(gl->g_data, wbytes * height, 1, fp) != 1)
return (1);
}
return (0);
}
static void
fold_mappings(unsigned int map_idx)
{
struct mapping_list *ml = &maps[map_idx];
struct mapping *mn, *mp, *mbase;
mp = mbase = TAILQ_FIRST(ml);
for (mp = mbase = TAILQ_FIRST(ml); mp != NULL; mp = mn) {
mn = TAILQ_NEXT(mp, m_list);
if (mn != NULL && mn->m_char == mp->m_char + 1 &&
mn->m_glyph->g_index == mp->m_glyph->g_index + 1)
continue;
mbase->m_length = mp->m_char - mbase->m_char + 1;
mbase = mp = mn;
map_folded_count[map_idx]++;
}
}
static int
write_mappings(FILE *fp, unsigned int map_idx)
{
struct mapping_list *ml = &maps[map_idx];
struct mapping *mp;
vfnt_map_t fm;
unsigned int i = 0, j = 0;
TAILQ_FOREACH (mp, ml, m_list) {
j++;
if (mp->m_length > 0) {
i += mp->m_length;
fm.vfm_src = htobe32(mp->m_char);
fm.vfm_dst = htobe16(mp->m_glyph->g_index);
fm.vfm_len = htobe16(mp->m_length - 1);
if (fwrite(&fm, sizeof fm, 1, fp) != 1)
return (1);
}
}
assert(i == j);
return (0);
}
static int
write_source_mappings(FILE *fp, unsigned int map_idx)
{
struct mapping_list *ml = &maps[map_idx];
struct mapping *mp;
unsigned int i = 0, j = 0;
TAILQ_FOREACH (mp, ml, m_list) {
j++;
if (mp->m_length > 0) {
i += mp->m_length;
if (fprintf(fp, "\t{ 0x%08x, 0x%04x, 0x%04x },\n",
mp->m_char, mp->m_glyph->g_index,
mp->m_length - 1) < 0)
return (1);
}
}
assert(i == j);
return (0);
}
static int
write_fnt(const char *filename)
{
FILE *fp;
struct font_header fh = {
.fh_magic = FONT_HEADER_MAGIC,
};
fp = fopen(filename, "wb");
if (fp == NULL) {
perror(filename);
return (1);
}
fh.fh_width = width;
fh.fh_height = height;
fh.fh_glyph_count = htobe32(glyph_unique);
fh.fh_map_count[0] = htobe32(map_folded_count[0]);
fh.fh_map_count[1] = htobe32(map_folded_count[1]);
fh.fh_map_count[2] = htobe32(map_folded_count[2]);
fh.fh_map_count[3] = htobe32(map_folded_count[3]);
if (fwrite(&fh, sizeof(fh), 1, fp) != 1) {
perror(filename);
fclose(fp);
return (1);
}
if (write_glyphs(fp, &fwrite) != 0 ||
write_mappings(fp, VFNT_MAP_NORMAL) != 0 ||
write_mappings(fp, VFNT_MAP_NORMAL_RIGHT) != 0 ||
write_mappings(fp, VFNT_MAP_BOLD) != 0 ||
write_mappings(fp, VFNT_MAP_BOLD_RIGHT) != 0) {
perror(filename);
fclose(fp);
return (1);
}
fclose(fp);
return (0);
}
static int
write_fnt_source(bool lz4, const char *filename)
{
FILE *fp;
int rv = 1;
size_t uncompressed_size = wbytes * height * glyph_unique;
size_t compressed_size = uncompressed_size;
uint8_t *compressed = NULL;
fp = fopen(filename, "w");
if (fp == NULL) {
perror(filename);
return (1);
}
if (lz4 == true) {
uncompressed = xmalloc(uncompressed_size);
compressed = xmalloc(uncompressed_size);
}
if (fprintf(fp, "/* Generated %ux%u console font source. */\n\n", width,
height) < 0)
goto done;
if (fprintf(fp, "#include <sys/types.h>\n") < 0)
goto done;
if (fprintf(fp, "#include <sys/param.h>\n") < 0)
goto done;
if (fprintf(fp, "#include <sys/font.h>\n\n") < 0)
goto done;
/* Write font bytes. */
if (fprintf(
fp, "static uint8_t FONTDATA_%ux%u[] = {\n", width, height) < 0)
goto done;
if (lz4 == true) {
if (write_glyphs(fp, &write_glyph_buf) != 0)
goto done;
compressed_size = lz4_compress(uncompressed, compressed,
uncompressed_size, compressed_size, 0);
if (write_glyph_source(compressed, compressed_size, 1, fp) != 1)
goto done;
free(uncompressed);
free(compressed);
} else {
if (write_glyphs(fp, &write_glyph_source) != 0)
goto done;
}
if (fprintf(fp, "};\n\n") < 0)
goto done;
/* Write font maps. */
if (!TAILQ_EMPTY(&maps[VFNT_MAP_NORMAL])) {
if (fprintf(fp,
"static vfnt_map_t "
"FONTMAP_NORMAL_%ux%u[] = {\n",
width, height) < 0)
goto done;
if (write_source_mappings(fp, VFNT_MAP_NORMAL) != 0)
goto done;
if (fprintf(fp, "};\n\n") < 0)
goto done;
}
if (!TAILQ_EMPTY(&maps[VFNT_MAP_NORMAL_RIGHT])) {
if (fprintf(fp,
"static vfnt_map_t "
"FONTMAP_NORMAL_RH_%ux%u[] = {\n",
width, height) < 0)
goto done;
if (write_source_mappings(fp, VFNT_MAP_NORMAL_RIGHT) != 0)
goto done;
if (fprintf(fp, "};\n\n") < 0)
goto done;
}
if (!TAILQ_EMPTY(&maps[VFNT_MAP_BOLD])) {
if (fprintf(fp,
"static vfnt_map_t "
"FONTMAP_BOLD_%ux%u[] = {\n",
width, height) < 0)
goto done;
if (write_source_mappings(fp, VFNT_MAP_BOLD) != 0)
goto done;
if (fprintf(fp, "};\n\n") < 0)
goto done;
}
if (!TAILQ_EMPTY(&maps[VFNT_MAP_BOLD_RIGHT])) {
if (fprintf(fp,
"static vfnt_map_t "
"FONTMAP_BOLD_RH_%ux%u[] = {\n",
width, height) < 0)
goto done;
if (write_source_mappings(fp, VFNT_MAP_BOLD_RIGHT) != 0)
goto done;
if (fprintf(fp, "};\n\n") < 0)
goto done;
}
/* Write struct font. */
if (fprintf(fp, "struct vt_font font_%ux%u = {\n", width, height) < 0)
goto done;
if (fprintf(fp, "\t.vf_map\t= {\n") < 0)
goto done;
if (TAILQ_EMPTY(&maps[VFNT_MAP_NORMAL])) {
if (fprintf(fp, "\t\t\tNULL,\n") < 0)
goto done;
} else {
if (fprintf(
fp, "\t\t\tFONTMAP_NORMAL_%ux%u,\n", width, height) < 0)
goto done;
}
if (TAILQ_EMPTY(&maps[VFNT_MAP_NORMAL_RIGHT])) {
if (fprintf(fp, "\t\t\tNULL,\n") < 0)
goto done;
} else {
if (fprintf(fp, "\t\t\tFONTMAP_NORMAL_RH_%ux%u,\n", width,
height) < 0)
goto done;
}
if (TAILQ_EMPTY(&maps[VFNT_MAP_BOLD])) {
if (fprintf(fp, "\t\t\tNULL,\n") < 0)
goto done;
} else {
if (fprintf(fp, "\t\t\tFONTMAP_BOLD_%ux%u,\n", width, height) <
0)
goto done;
}
if (TAILQ_EMPTY(&maps[VFNT_MAP_BOLD_RIGHT])) {
if (fprintf(fp, "\t\t\tNULL\n") < 0)
goto done;
} else {
if (fprintf(
fp, "\t\t\tFONTMAP_BOLD_RH_%ux%u\n", width, height) < 0)
goto done;
}
if (fprintf(fp, "\t\t},\n") < 0)
goto done;
if (lz4 == true) {
if (fprintf(fp, "\t.vf_bytes\t= NULL,\n") < 0)
goto done;
} else {
if (fprintf(fp, "\t.vf_bytes\t= FONTDATA_%ux%u,\n", width,
height) < 0) {
goto done;
}
}
if (fprintf(fp, "\t.vf_width\t= %u,\n", width) < 0)
goto done;
if (fprintf(fp, "\t.vf_height\t= %u,\n", height) < 0)
goto done;
if (fprintf(fp, "\t.vf_map_count\t= { %u, %u, %u, %u }\n",
map_folded_count[0], map_folded_count[1], map_folded_count[2],
map_folded_count[3]) < 0) {
goto done;
}
if (fprintf(fp, "};\n\n") < 0)
goto done;
/* Write bitmap data. */
if (fprintf(fp, "vt_font_bitmap_data_t font_data_%ux%u = {\n", width,
height) < 0)
goto done;
if (fprintf(fp, "\t.vfbd_width\t= %u,\n", width) < 0)
goto done;
if (fprintf(fp, "\t.vfbd_height\t= %u,\n", height) < 0)
goto done;
if (lz4 == true) {
if (fprintf(fp, "\t.vfbd_compressed_size\t= %zu,\n",
compressed_size) < 0) {
goto done;
}
if (fprintf(fp, "\t.vfbd_uncompressed_size\t= %zu,\n",
uncompressed_size) < 0) {
goto done;
}
if (fprintf(fp, "\t.vfbd_compressed_data\t= FONTDATA_%ux%u,\n",
width, height) < 0) {
goto done;
}
} else {
if (fprintf(fp, "\t.vfbd_compressed_size\t= 0,\n") < 0)
goto done;
if (fprintf(fp, "\t.vfbd_uncompressed_size\t= %zu,\n",
uncompressed_size) < 0) {
goto done;
}
if (fprintf(fp, "\t.vfbd_compressed_data\t= NULL,\n") < 0)
goto done;
}
if (fprintf(fp, "\t.vfbd_font = &font_%ux%u\n", width, height) < 0)
goto done;
if (fprintf(fp, "};\n") < 0)
goto done;
rv = 0;
done:
if (rv != 0)
perror(filename);
fclose(fp);
return (0);
}
static void
print_font_info(void)
{
printf("Statistics:\n"
"- width: %6u\n"
"- height: %6u\n"
"- glyph_total: %6u\n"
"- glyph_normal: %6u\n"
"- glyph_normal_right: %6u\n"
"- glyph_bold: %6u\n"
"- glyph_bold_right: %6u\n"
"- glyph_unique: %6u\n"
"- glyph_dupe: %6u\n"
"- mapping_total: %6u\n"
"- mapping_normal: %6u\n"
"- mapping_normal_folded: %6u\n"
"- mapping_normal_right: %6u\n"
"- mapping_normal_right_folded: %6u\n"
"- mapping_bold: %6u\n"
"- mapping_bold_folded: %6u\n"
"- mapping_bold_right: %6u\n"
"- mapping_bold_right_folded: %6u\n"
"- mapping_unique: %6u\n"
"- mapping_dupe: %6u\n",
width, height, glyph_total, glyph_count[0], glyph_count[1],
glyph_count[2], glyph_count[3], glyph_unique, glyph_dupe,
mapping_total, map_count[0], map_folded_count[0], map_count[1],
map_folded_count[1], map_count[2], map_folded_count[2],
map_count[3], map_folded_count[3], mapping_unique, mapping_dupe);
}
int
main(int argc, char *argv[])
{
int ch, verbose = 0, rv = 0;
char *outfile = NULL;
assert(sizeof(struct font_header) == 32);
assert(sizeof(vfnt_map_t) == 8);
while ((ch = getopt(argc, argv, "nf:h:vw:o:")) != -1) {
switch (ch) {
case 'f':
if (strcmp(optarg, "font") == 0)
format = VT_FONT;
else if (strcmp(optarg, "source") == 0)
format = VT_C_SOURCE;
else if (strcmp(optarg, "compressed-source") == 0)
format = VT_C_COMPRESSED;
else
errx(1, "Invalid format: %s", optarg);
break;
case 'h':
height = atoi(optarg);
break;
case 'n':
filter = false;
break;
case 'o':
outfile = optarg;
break;
case 'v':
verbose = 1;
break;
case 'w':
width = atoi(optarg);
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
if (outfile == NULL && (argc < 2 || argc > 3))
usage();
if (outfile == NULL) {
outfile = argv[argc - 1];
argc--;
}
set_width(width);
set_height(height);
if (parse_file(argv[0], VFNT_MAP_NORMAL) != 0)
return (1);
argc--;
argv++;
if (argc == 1) {
if (parse_file(argv[0], VFNT_MAP_BOLD) != 0)
return (1);
argc--;
argv++;
}
number_glyphs();
dedup_mapping(VFNT_MAP_BOLD);
dedup_mapping(VFNT_MAP_BOLD_RIGHT);
fold_mappings(0);
fold_mappings(1);
fold_mappings(2);
fold_mappings(3);
switch (format) {
case VT_FONT:
rv = write_fnt(outfile);
break;
case VT_C_SOURCE:
rv = write_fnt_source(false, outfile);
break;
case VT_C_COMPRESSED:
rv = write_fnt_source(true, outfile);
break;
}
if (verbose)
print_font_info();
return (rv);
}