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grub/util/grub-mkfont.c

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009,2010 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <grub/types.h>
#include <grub/misc.h>
#include <grub/emu/misc.h>
#include <grub/util/misc.h>
#include <grub/misc.h>
#include <grub/i18n.h>
#include <grub/fontformat.h>
#include <grub/font.h>
#include <grub/unicode.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_TRUETYPE_TAGS_H
#include FT_TRUETYPE_TABLES_H
#include <freetype/ftsynth.h>
#undef __FTERRORS_H__
#define FT_ERROR_START_LIST const char *ft_errmsgs[] = {
#define FT_ERRORDEF(e, v, s) [e] = s,
#define FT_ERROR_END_LIST };
#include FT_ERRORS_H
#include "progname.h"
#define GRUB_FONT_DEFAULT_SIZE 16
#define GRUB_FONT_RANGE_BLOCK 1024
struct grub_glyph_info
{
struct grub_glyph_info *next;
grub_uint32_t char_code;
int width;
int height;
int x_ofs;
int y_ofs;
int device_width;
int bitmap_size;
grub_uint8_t *bitmap;
};
enum file_formats
{
PF2,
ASCII_BITMAPS,
WIDTH_SPEC
};
#define GRUB_FONT_FLAG_BOLD 1
#define GRUB_FONT_FLAG_NOBITMAP 2
#define GRUB_FONT_FLAG_NOHINTING 4
#define GRUB_FONT_FLAG_FORCEHINT 8
struct grub_font_info
{
char* name;
int style;
int desc;
int asce;
int size;
int max_width;
int max_height;
int min_y;
int max_y;
int flags;
int num_range;
grub_uint32_t *ranges;
struct grub_glyph_info *glyphs_unsorted;
struct grub_glyph_info *glyphs_sorted;
int num_glyphs;
};
static struct option options[] =
{
{"output", required_argument, 0, 'o'},
{"name", required_argument, 0, 'n'},
{"index", required_argument, 0, 'i'},
{"range", required_argument, 0, 'r'},
{"size", required_argument, 0, 's'},
{"desc", required_argument, 0, 'd'},
{"asce", required_argument, 0, 'c'},
{"bold", no_argument, 0, 'b'},
{"no-bitmap", no_argument, 0, 0x100},
{"no-hinting", no_argument, 0, 0x101},
{"force-autohint", no_argument, 0, 'a'},
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'V'},
{"verbose", no_argument, 0, 'v'},
{"ascii-bitmaps", no_argument, 0, 0x102},
{"width-spec", no_argument, 0, 0x103},
{0, 0, 0, 0}
};
int font_verbosity;
static void
usage (int status)
{
if (status)
fprintf (stderr, "Try `%s --help' for more information.\n", program_name);
else
printf ("\
Usage: %s [OPTIONS] FONT_FILES\n\
\nOptions:\n\
-o, --output=FILE_NAME set output file name\n\
--ascii-bitmaps save only the ASCII bitmaps\n\
--width-spec create width summary file\n\
-i, --index=N set face index\n\
-r, --range=A-B[,C-D] set font range\n\
-n, --name=S set font family name\n\
-s, --size=N set font size\n\
-d, --desc=N set font descent\n\
-c, --asce=N set font ascent\n\
-b, --bold convert to bold font\n\
-a, --force-autohint force autohint\n\
--no-hinting disable hinting\n\
--no-bitmap ignore bitmap strikes when loading\n\
-h, --help display this message and exit\n\
-V, --version print version information and exit\n\
-v, --verbose print verbose messages\n\
\n\
Report bugs to <%s>.\n", program_name, PACKAGE_BUGREPORT);
exit (status);
}
void
add_pixel (grub_uint8_t **data, int *mask, int not_blank)
{
if (*mask == 0)
{
(*data)++;
**data = 0;
*mask = 128;
}
if (not_blank)
**data |= *mask;
*mask >>= 1;
}
static void
add_glyph (struct grub_font_info *font_info, FT_UInt glyph_idx, FT_Face face,
grub_uint32_t char_code, int nocut)
{
struct grub_glyph_info *glyph_info;
int width, height;
int cuttop, cutbottom, cutleft, cutright;
grub_uint8_t *data;
int mask, i, j, bitmap_size;
FT_GlyphSlot glyph;
int flag = FT_LOAD_RENDER | FT_LOAD_MONOCHROME;
FT_Error err;
if (font_info->flags & GRUB_FONT_FLAG_NOBITMAP)
flag |= FT_LOAD_NO_BITMAP;
if (font_info->flags & GRUB_FONT_FLAG_NOHINTING)
flag |= FT_LOAD_NO_HINTING;
else if (font_info->flags & GRUB_FONT_FLAG_FORCEHINT)
flag |= FT_LOAD_FORCE_AUTOHINT;
err = FT_Load_Glyph (face, glyph_idx, flag);
if (err)
{
printf ("Freetype Error %d loading glyph 0x%x for U+0x%x%s",
err, glyph_idx, char_code & GRUB_FONT_CODE_CHAR_MASK,
char_code & GRUB_FONT_CODE_RIGHT_JOINED
? ((char_code & GRUB_FONT_CODE_LEFT_JOINED) ? " (medial)":
" (leftmost)")
: ((char_code & GRUB_FONT_CODE_LEFT_JOINED) ? " (rightmost)":
""));
if (err > 0 && err < (signed) ARRAY_SIZE (ft_errmsgs))
printf (": %s\n", ft_errmsgs[err]);
else
printf ("\n");
return;
}
glyph = face->glyph;
if (font_info->flags & GRUB_FONT_FLAG_BOLD)
FT_GlyphSlot_Embolden (glyph);
if (glyph->next)
printf ("%x\n", char_code);
if (nocut)
cuttop = cutbottom = cutleft = cutright = 0;
else
{
for (cuttop = 0; cuttop < glyph->bitmap.rows; cuttop++)
{
for (j = 0; j < glyph->bitmap.width; j++)
if (glyph->bitmap.buffer[j / 8 + cuttop * glyph->bitmap.pitch]
& (1 << (7 - (j & 7))))
break;
if (j != glyph->bitmap.width)
break;
}
for (cutbottom = glyph->bitmap.rows - 1; cutbottom >= 0; cutbottom--)
{
for (j = 0; j < glyph->bitmap.width; j++)
if (glyph->bitmap.buffer[j / 8 + cutbottom * glyph->bitmap.pitch]
& (1 << (7 - (j & 7))))
break;
if (j != glyph->bitmap.width)
break;
}
cutbottom = glyph->bitmap.rows - 1 - cutbottom;
if (cutbottom + cuttop >= glyph->bitmap.rows)
cutbottom = 0;
for (cutleft = 0; cutleft < glyph->bitmap.width; cutleft++)
{
for (j = 0; j < glyph->bitmap.rows; j++)
if (glyph->bitmap.buffer[cutleft / 8 + j * glyph->bitmap.pitch]
& (1 << (7 - (cutleft & 7))))
break;
if (j != glyph->bitmap.rows)
break;
}
for (cutright = glyph->bitmap.width - 1; cutright >= 0; cutright--)
{
for (j = 0; j < glyph->bitmap.rows; j++)
if (glyph->bitmap.buffer[cutright / 8 + j * glyph->bitmap.pitch]
& (1 << (7 - (cutright & 7))))
break;
if (j != glyph->bitmap.rows)
break;
}
cutright = glyph->bitmap.width - 1 - cutright;
if (cutright + cutleft >= glyph->bitmap.width)
cutright = 0;
}
width = glyph->bitmap.width - cutleft - cutright;
height = glyph->bitmap.rows - cutbottom - cuttop;
bitmap_size = ((width * height + 7) / 8);
glyph_info = xmalloc (sizeof (struct grub_glyph_info));
glyph_info->bitmap = xmalloc (bitmap_size);
glyph_info->bitmap_size = bitmap_size;
glyph_info->next = font_info->glyphs_unsorted;
font_info->glyphs_unsorted = glyph_info;
font_info->num_glyphs++;
glyph_info->char_code = char_code;
glyph_info->width = width;
glyph_info->height = height;
glyph_info->x_ofs = glyph->bitmap_left + cutleft;
glyph_info->y_ofs = glyph->bitmap_top - height - cuttop;
glyph_info->device_width = glyph->metrics.horiAdvance / 64;
if (width > font_info->max_width)
font_info->max_width = width;
if (height > font_info->max_height)
font_info->max_height = height;
if (glyph_info->y_ofs < font_info->min_y && glyph_info->y_ofs > -font_info->size)
font_info->min_y = glyph_info->y_ofs;
if (glyph_info->y_ofs + height > font_info->max_y)
font_info->max_y = glyph_info->y_ofs + height;
mask = 0;
data = &glyph_info->bitmap[0] - 1;
for (j = cuttop; j < height + cuttop; j++)
for (i = cutleft; i < width + cutleft; i++)
add_pixel (&data, &mask,
glyph->bitmap.buffer[i / 8 + j * glyph->bitmap.pitch] &
(1 << (7 - (i & 7))));
}
struct glyph_replace *subst_rightjoin, *subst_leftjoin, *subst_medijoin;
struct glyph_replace
{
struct glyph_replace *next;
grub_uint32_t from, to;
};
/* TODO: sort glyph_replace and use binary search if necessary. */
static void
add_char (struct grub_font_info *font_info, FT_Face face,
grub_uint32_t char_code, int nocut)
{
FT_UInt glyph_idx;
struct glyph_replace *cur;
glyph_idx = FT_Get_Char_Index (face, char_code);
if (!glyph_idx)
return;
add_glyph (font_info, glyph_idx, face, char_code, nocut);
for (cur = subst_rightjoin; cur; cur = cur->next)
if (cur->from == glyph_idx)
{
add_glyph (font_info, cur->to, face,
char_code | GRUB_FONT_CODE_RIGHT_JOINED, nocut);
break;
}
if (!cur && char_code >= GRUB_UNICODE_ARABIC_START
&& char_code < GRUB_UNICODE_ARABIC_END)
{
int i;
for (i = 0; grub_unicode_arabic_shapes[i].code; i++)
if (grub_unicode_arabic_shapes[i].code == char_code
&& grub_unicode_arabic_shapes[i].right_linked)
{
FT_UInt idx2;
idx2 = FT_Get_Char_Index (face, grub_unicode_arabic_shapes[i]
.right_linked);
if (idx2)
add_glyph (font_info, idx2, face,
char_code | GRUB_FONT_CODE_RIGHT_JOINED, nocut);
break;
}
}
for (cur = subst_leftjoin; cur; cur = cur->next)
if (cur->from == glyph_idx)
{
add_glyph (font_info, cur->to, face,
char_code | GRUB_FONT_CODE_LEFT_JOINED, nocut);
break;
}
if (!cur && char_code >= GRUB_UNICODE_ARABIC_START
&& char_code < GRUB_UNICODE_ARABIC_END)
{
int i;
for (i = 0; grub_unicode_arabic_shapes[i].code; i++)
if (grub_unicode_arabic_shapes[i].code == char_code
&& grub_unicode_arabic_shapes[i].left_linked)
{
FT_UInt idx2;
idx2 = FT_Get_Char_Index (face, grub_unicode_arabic_shapes[i]
.left_linked);
if (idx2)
add_glyph (font_info, idx2, face,
char_code | GRUB_FONT_CODE_LEFT_JOINED, nocut);
break;
}
}
for (cur = subst_medijoin; cur; cur = cur->next)
if (cur->from == glyph_idx)
{
add_glyph (font_info, cur->to, face,
char_code | GRUB_FONT_CODE_LEFT_JOINED
| GRUB_FONT_CODE_RIGHT_JOINED, nocut);
break;
}
if (!cur && char_code >= GRUB_UNICODE_ARABIC_START
&& char_code < GRUB_UNICODE_ARABIC_END)
{
int i;
for (i = 0; grub_unicode_arabic_shapes[i].code; i++)
if (grub_unicode_arabic_shapes[i].code == char_code
&& grub_unicode_arabic_shapes[i].both_linked)
{
FT_UInt idx2;
idx2 = FT_Get_Char_Index (face, grub_unicode_arabic_shapes[i]
.both_linked);
if (idx2)
add_glyph (font_info, idx2, face,
char_code | GRUB_FONT_CODE_LEFT_JOINED
| GRUB_FONT_CODE_RIGHT_JOINED, nocut);
break;
}
}
}
struct gsub_header
{
grub_uint32_t version;
grub_uint16_t scripts_off;
grub_uint16_t features_off;
grub_uint16_t lookups_off;
} __attribute__ ((packed));
struct gsub_features
{
grub_uint16_t count;
struct
{
#define FEATURE_FINA 0x66696e61
#define FEATURE_INIT 0x696e6974
#define FEATURE_MEDI 0x6d656469
#define FEATURE_AALT 0x61616c74
#define FEATURE_LIGA 0x6c696761
#define FEATURE_RLIG 0x726c6967
grub_uint32_t feature_tag;
grub_uint16_t offset;
} __attribute__ ((packed)) features[0];
} __attribute__ ((packed));
struct gsub_feature
{
grub_uint16_t params;
grub_uint16_t lookupcount;
grub_uint16_t lookupindices[0];
} __attribute__ ((packed));
struct gsub_lookup_list
{
grub_uint16_t count;
grub_uint16_t offsets[0];
} __attribute__ ((packed));
struct gsub_lookup
{
grub_uint16_t type;
grub_uint16_t flag;
grub_uint16_t subtablecount;
grub_uint16_t subtables[0];
} __attribute__ ((packed));
struct gsub_substitution
{
grub_uint16_t type;
grub_uint16_t coverage_off;
union
{
grub_int16_t delta;
struct
{
grub_int16_t count;
grub_uint16_t repl[0];
};
};
} __attribute__ ((packed));
struct gsub_coverage_list
{
grub_uint16_t type;
grub_uint16_t count;
grub_uint16_t glyphs[0];
} __attribute__ ((packed));
struct gsub_coverage_ranges
{
grub_uint16_t type;
grub_uint16_t count;
struct
{
grub_uint16_t start;
grub_uint16_t end;
grub_uint16_t start_index;
} __attribute__ ((packed)) ranges[0];
} __attribute__ ((packed));
#define GSUB_SINGLE_SUBSTITUTION 1
#define GSUB_SUBSTITUTION_DELTA 1
#define GSUB_SUBSTITUTION_MAP 2
#define GSUB_COVERAGE_LIST 1
#define GSUB_COVERAGE_RANGE 2
#define GSUB_RTL_CHAR 1
static void
add_subst (grub_uint32_t from, grub_uint32_t to, struct glyph_replace **target)
{
struct glyph_replace *new = xmalloc (sizeof (*new));
new->next = *target;
new->from = from;
new->to = to;
*target = new;
}
static void
process_cursive (struct gsub_feature *feature,
struct gsub_lookup_list *lookups,
grub_uint32_t feattag)
{
int j, k;
int i;
struct glyph_replace **target;
struct gsub_substitution *sub;
auto inline void subst (grub_uint32_t glyph);
void subst (grub_uint32_t glyph)
{
grub_uint16_t substtype;
substtype = grub_be_to_cpu16 (sub->type);
if (substtype == GSUB_SUBSTITUTION_DELTA)
add_subst (glyph, glyph + grub_be_to_cpu16 (sub->delta), target);
else if (i >= grub_be_to_cpu16 (sub->count))
printf ("Out of range substitution (%d, %d)\n", i,
grub_be_to_cpu16 (sub->count));
else
add_subst (glyph, grub_be_to_cpu16 (sub->repl[i++]), target);
}
for (j = 0; j < grub_be_to_cpu16 (feature->lookupcount); j++)
{
int lookup_index = grub_be_to_cpu16 (feature->lookupindices[j]);
struct gsub_lookup *lookup;
if (lookup_index >= grub_be_to_cpu16 (lookups->count))
{
printf ("Out of range lookup: %d\n", lookup_index);
continue;
}
lookup = (struct gsub_lookup *)
((grub_uint8_t *) lookups
+ grub_be_to_cpu16 (lookups->offsets[lookup_index]));
if (grub_be_to_cpu16 (lookup->type) != GSUB_SINGLE_SUBSTITUTION)
{
printf ("Unsupported substitution type: %d\n",
grub_be_to_cpu16 (lookup->type));
continue;
}
if (grub_be_to_cpu16 (lookup->flag) & ~GSUB_RTL_CHAR)
{
printf ("Unsupported substitution flag: 0x%x\n",
grub_be_to_cpu16 (lookup->flag));
}
switch (feattag)
{
case FEATURE_INIT:
if (grub_be_to_cpu16 (lookup->flag) & GSUB_RTL_CHAR)
target = &subst_leftjoin;
else
target = &subst_rightjoin;
break;
case FEATURE_FINA:
if (grub_be_to_cpu16 (lookup->flag) & GSUB_RTL_CHAR)
target = &subst_rightjoin;
else
target = &subst_leftjoin;
break;
case FEATURE_MEDI:
target = &subst_medijoin;
break;
}
for (k = 0; k < grub_be_to_cpu16 (lookup->subtablecount); k++)
{
sub = (struct gsub_substitution *)
((grub_uint8_t *) lookup + grub_be_to_cpu16 (lookup->subtables[k]));
grub_uint16_t substtype;
substtype = grub_be_to_cpu16 (sub->type);
if (substtype != GSUB_SUBSTITUTION_MAP
&& substtype != GSUB_SUBSTITUTION_DELTA)
{
printf ("Unsupported substitution specification: %d\n",
substtype);
continue;
}
void *coverage = (grub_uint8_t *) sub
+ grub_be_to_cpu16 (sub->coverage_off);
grub_uint32_t covertype;
covertype = grub_be_to_cpu16 (*(grub_uint16_t * __attribute__ ((packed))) coverage);
i = 0;
if (covertype == GSUB_COVERAGE_LIST)
{
struct gsub_coverage_list *cover = coverage;
int l;
for (l = 0; l < grub_be_to_cpu16 (cover->count); l++)
subst (grub_be_to_cpu16 (cover->glyphs[l]));
}
else if (covertype == GSUB_COVERAGE_RANGE)
{
struct gsub_coverage_ranges *cover = coverage;
int l, m;
for (l = 0; l < grub_be_to_cpu16 (cover->count); l++)
for (m = grub_be_to_cpu16 (cover->ranges[l].start);
m <= grub_be_to_cpu16 (cover->ranges[l].end); m++)
subst (m);
}
else
printf ("Unsupported coverage specification: %d\n", covertype);
}
}
}
void
add_font (struct grub_font_info *font_info, FT_Face face, int nocut)
{
struct gsub_header *gsub = NULL;
FT_ULong gsub_len = 0;
if (!FT_Load_Sfnt_Table (face, TTAG_GSUB, 0, NULL, &gsub_len))
{
gsub = xmalloc (gsub_len);
if (FT_Load_Sfnt_Table (face, TTAG_GSUB, 0, (void *) gsub, &gsub_len))
{
free (gsub);
gsub = NULL;
gsub_len = 0;
}
}
if (gsub)
{
struct gsub_features *features
= (struct gsub_features *) (((grub_uint8_t *) gsub)
+ grub_be_to_cpu16 (gsub->features_off));
struct gsub_lookup_list *lookups
= (struct gsub_lookup_list *) (((grub_uint8_t *) gsub)
+ grub_be_to_cpu16 (gsub->lookups_off));
int i;
int nfeatures = grub_be_to_cpu16 (features->count);
for (i = 0; i < nfeatures; i++)
{
struct gsub_feature *feature = (struct gsub_feature *)
((grub_uint8_t *) features
+ grub_be_to_cpu16 (features->features[i].offset));
grub_uint32_t feattag
= grub_be_to_cpu32 (features->features[i].feature_tag);
if (feature->params)
printf ("WARNING: unsupported feature parameters: %x\n",
grub_be_to_cpu16 (feature->params));
switch (feattag)
{
/* Used for retrieving all possible variants. Useless in grub. */
case FEATURE_AALT:
break;
/* FIXME: Add ligature support. */
case FEATURE_LIGA:
case FEATURE_RLIG:
break;
/* Cursive form variants. */
case FEATURE_FINA:
case FEATURE_INIT:
case FEATURE_MEDI:
process_cursive (feature, lookups, feattag);
break;
default:
{
char str[5];
int j;
memcpy (str, &features->features[i].feature_tag,
sizeof (features->features[i].feature_tag));
str[4] = 0;
for (j = 0; j < 4; j++)
if (!grub_isgraph (str[j]))
str[j] = '?';
printf ("Unknown gsub feature 0x%x (%s)\n", feattag, str);
}
}
}
}
if (font_info->num_range)
{
int i;
grub_uint32_t j;
for (i = 0; i < font_info->num_range; i++)
for (j = font_info->ranges[i * 2]; j <= font_info->ranges[i * 2 + 1];
j++)
add_char (font_info, face, j, nocut);
}
else
{
grub_uint32_t char_code, glyph_index;
for (char_code = FT_Get_First_Char (face, &glyph_index);
glyph_index;
char_code = FT_Get_Next_Char (face, char_code, &glyph_index))
add_char (font_info, face, char_code, nocut);
}
}
void
write_string_section (char *name, char *str, int* offset, FILE* file)
{
grub_uint32_t leng, leng_be32;
leng = strlen (str) + 1;
leng_be32 = grub_cpu_to_be32 (leng);
grub_util_write_image (name, 4, file);
grub_util_write_image ((char *) &leng_be32, 4, file);
grub_util_write_image (str, leng, file);
*offset += 8 + leng;
}
void
write_be16_section (char *name, grub_uint16_t data, int* offset, FILE* file)
{
grub_uint32_t leng;
leng = grub_cpu_to_be32 (2);
data = grub_cpu_to_be16 (data);
grub_util_write_image (name, 4, file);
grub_util_write_image ((char *) &leng, 4, file);
grub_util_write_image ((char *) &data, 2, file);
*offset += 10;
}
void
print_glyphs (struct grub_font_info *font_info)
{
int num;
struct grub_glyph_info *glyph;
char line[512];
for (glyph = font_info->glyphs_sorted, num = 0; num < font_info->num_glyphs;
glyph++, num++)
{
int x, y, xmax, xmin, ymax, ymin;
grub_uint8_t *bitmap, mask;
printf ("\nGlyph #%d, U+%04x\n", num, glyph->char_code);
printf ("Width %d, Height %d, X offset %d, Y offset %d, Device width %d\n",
glyph->width, glyph->height, glyph->x_ofs, glyph->y_ofs,
glyph->device_width);
xmax = glyph->x_ofs + glyph->width;
if (xmax < glyph->device_width)
xmax = glyph->device_width;
xmin = glyph->x_ofs;
if (xmin > 0)
xmin = 0;
ymax = glyph->y_ofs + glyph->height;
if (ymax < font_info->asce)
ymax = font_info->asce;
ymin = glyph->y_ofs;
if (ymin > - font_info->desc)
ymin = - font_info->desc;
bitmap = glyph->bitmap;
mask = 0x80;
for (y = ymax - 1; y >= ymin; y--)
{
int line_pos;
line_pos = 0;
for (x = xmin; x < xmax; x++)
{
if ((x >= glyph->x_ofs) &&
(x < glyph->x_ofs + glyph->width) &&
(y >= glyph->y_ofs) &&
(y < glyph->y_ofs + glyph->height))
{
line[line_pos++] = (*bitmap & mask) ? '#' : '_';
mask >>= 1;
if (mask == 0)
{
mask = 0x80;
bitmap++;
}
}
else if ((x >= 0) &&
(x < glyph->device_width) &&
(y >= - font_info->desc) &&
(y < font_info->asce))
{
line[line_pos++] = ((x == 0) || (y == 0)) ? '+' : '.';
}
else
line[line_pos++] = '*';
}
line[line_pos] = 0;
printf ("%s\n", line);
}
}
}
void
write_font_ascii_bitmap (struct grub_font_info *font_info, char *output_file)
{
FILE *file;
struct grub_glyph_info *glyph;
int num;
file = fopen (output_file, "wb");
if (! file)
grub_util_error ("Can\'t write to file %s.", output_file);
int correct_size;
for (glyph = font_info->glyphs_sorted, num = 0; num < font_info->num_glyphs;
glyph++, num++)
{
correct_size = 1;
if (glyph->width != 8 || glyph->height != 16)
{
/* printf ("Width or height from glyph U+%04x not supported, skipping.\n", glyph->char_code); */
correct_size = 0;
}
int row;
for (row = 0; row < glyph->height; row++)
{
if (correct_size)
fwrite (&glyph->bitmap[row], sizeof(glyph->bitmap[row]), 1, file);
else
fwrite (&correct_size, 1, 1, file);
}
}
fclose (file);
}
void
write_font_width_spec (struct grub_font_info *font_info, char *output_file)
{
FILE *file;
struct grub_glyph_info *glyph;
grub_uint8_t *out;
out = xmalloc (8192);
memset (out, 0, 8192);
file = fopen (output_file, "wb");
if (! file)
grub_util_error ("Can\'t write to file %s.", output_file);
for (glyph = font_info->glyphs_sorted;
glyph < font_info->glyphs_sorted + font_info->num_glyphs; glyph++)
if (glyph->width > 12)
out[glyph->char_code >> 3] |= (1 << (glyph->char_code & 7));
fwrite (out, 8192, 1, file);
fclose (file);
free (out);
}
void
write_font_pf2 (struct grub_font_info *font_info, char *output_file)
{
FILE *file;
grub_uint32_t leng, data;
char style_name[20], *font_name;
int offset;
struct grub_glyph_info *cur;
file = fopen (output_file, "wb");
if (! file)
grub_util_error ("can\'t write to file %s.", output_file);
offset = 0;
leng = grub_cpu_to_be32 (4);
grub_util_write_image (FONT_FORMAT_SECTION_NAMES_FILE,
sizeof(FONT_FORMAT_SECTION_NAMES_FILE) - 1, file);
grub_util_write_image ((char *) &leng, 4, file);
grub_util_write_image (FONT_FORMAT_PFF2_MAGIC, 4, file);
offset += 12;
if (! font_info->name)
font_info->name = "Unknown";
if (font_info->flags & GRUB_FONT_FLAG_BOLD)
font_info->style |= FT_STYLE_FLAG_BOLD;
style_name[0] = 0;
if (font_info->style & FT_STYLE_FLAG_BOLD)
strcpy (style_name, " Bold");
if (font_info->style & FT_STYLE_FLAG_ITALIC)
strcat (style_name, " Italic");
if (! style_name[0])
strcpy (style_name, " Regular");
font_name = xasprintf ("%s %s %d", font_info->name, &style_name[1],
font_info->size);
write_string_section (FONT_FORMAT_SECTION_NAMES_FONT_NAME,
font_name, &offset, file);
write_string_section (FONT_FORMAT_SECTION_NAMES_FAMILY,
font_info->name, &offset, file);
write_string_section (FONT_FORMAT_SECTION_NAMES_WEIGHT,
(font_info->style & FT_STYLE_FLAG_BOLD) ?
"bold" : "normal",
&offset, file);
write_string_section (FONT_FORMAT_SECTION_NAMES_SLAN,
(font_info->style & FT_STYLE_FLAG_ITALIC) ?
"italic" : "normal",
&offset, file);
write_be16_section (FONT_FORMAT_SECTION_NAMES_POINT_SIZE,
font_info->size, &offset, file);
write_be16_section (FONT_FORMAT_SECTION_NAMES_MAX_CHAR_WIDTH,
font_info->max_width, &offset, file);
write_be16_section (FONT_FORMAT_SECTION_NAMES_MAX_CHAR_HEIGHT,
font_info->max_height, &offset, file);
if (! font_info->desc)
{
if (font_info->min_y >= 0)
font_info->desc = 1;
else
font_info->desc = - font_info->min_y;
}
if (! font_info->asce)
{
if (font_info->max_y <= 0)
font_info->asce = 1;
else
font_info->asce = font_info->max_y;
}
write_be16_section (FONT_FORMAT_SECTION_NAMES_ASCENT,
font_info->asce, &offset, file);
write_be16_section (FONT_FORMAT_SECTION_NAMES_DESCENT,
font_info->desc, &offset, file);
if (font_verbosity > 0)
{
printf ("Font name: %s\n", font_name);
printf ("Max width: %d\n", font_info->max_width);
printf ("Max height: %d\n", font_info->max_height);
printf ("Font ascent: %d\n", font_info->asce);
printf ("Font descent: %d\n", font_info->desc);
}
if (font_verbosity > 0)
printf ("Number of glyph: %d\n", font_info->num_glyphs);
leng = grub_cpu_to_be32 (font_info->num_glyphs * 9);
grub_util_write_image (FONT_FORMAT_SECTION_NAMES_CHAR_INDEX,
sizeof(FONT_FORMAT_SECTION_NAMES_CHAR_INDEX) - 1,
file);
grub_util_write_image ((char *) &leng, 4, file);
offset += 8 + font_info->num_glyphs * 9 + 8;
for (cur = font_info->glyphs_sorted;
cur < font_info->glyphs_sorted + font_info->num_glyphs; cur++)
{
data = grub_cpu_to_be32 (cur->char_code);
grub_util_write_image ((char *) &data, 4, file);
data = 0;
grub_util_write_image ((char *) &data, 1, file);
data = grub_cpu_to_be32 (offset);
grub_util_write_image ((char *) &data, 4, file);
offset += 10 + cur->bitmap_size;
}
leng = 0xffffffff;
grub_util_write_image (FONT_FORMAT_SECTION_NAMES_DATA,
sizeof(FONT_FORMAT_SECTION_NAMES_DATA) - 1, file);
grub_util_write_image ((char *) &leng, 4, file);
for (cur = font_info->glyphs_sorted;
cur < font_info->glyphs_sorted + font_info->num_glyphs; cur++)
{
data = grub_cpu_to_be16 (cur->width);
grub_util_write_image ((char *) &data, 2, file);
data = grub_cpu_to_be16 (cur->height);
grub_util_write_image ((char *) &data, 2, file);
data = grub_cpu_to_be16 (cur->x_ofs);
grub_util_write_image ((char *) &data, 2, file);
data = grub_cpu_to_be16 (cur->y_ofs);
grub_util_write_image ((char *) &data, 2, file);
data = grub_cpu_to_be16 (cur->device_width);
grub_util_write_image ((char *) &data, 2, file);
grub_util_write_image ((char *) &cur->bitmap[0], cur->bitmap_size, file);
}
fclose (file);
}
int
main (int argc, char *argv[])
{
struct grub_font_info font_info;
FT_Library ft_lib;
int font_index = 0;
int font_size = 0;
char *output_file = NULL;
enum file_formats file_format = PF2;
memset (&font_info, 0, sizeof (font_info));
set_program_name (argv[0]);
grub_util_init_nls ();
/* Check for options. */
while (1)
{
int c = getopt_long (argc, argv, "bao:n:i:s:d:r:hVv", options, 0);
if (c == -1)
break;
else
switch (c)
{
case 'b':
font_info.flags |= GRUB_FONT_FLAG_BOLD;
break;
case 0x100:
font_info.flags |= GRUB_FONT_FLAG_NOBITMAP;
break;
case 0x101:
font_info.flags |= GRUB_FONT_FLAG_NOHINTING;
break;
case 'a':
font_info.flags |= GRUB_FONT_FLAG_FORCEHINT;
break;
case 'o':
output_file = optarg;
break;
case 'n':
font_info.name = optarg;
break;
case 'i':
font_index = strtoul (optarg, NULL, 0);
break;
case 's':
font_size = strtoul (optarg, NULL, 0);
break;
case 'r':
{
char *p = optarg;
while (1)
{
grub_uint32_t a, b;
a = strtoul (p, &p, 0);
if (*p != '-')
grub_util_error ("invalid font range");
b = strtoul (p + 1, &p, 0);
if ((font_info.num_range & (GRUB_FONT_RANGE_BLOCK - 1)) == 0)
font_info.ranges = xrealloc (font_info.ranges,
(font_info.num_range +
GRUB_FONT_RANGE_BLOCK) *
sizeof (grub_uint32_t) * 2);
font_info.ranges[font_info.num_range * 2] = a;
font_info.ranges[font_info.num_range * 2 + 1] = b;
font_info.num_range++;
if (*p)
{
if (*p != ',')
grub_util_error ("invalid font range");
else
p++;
}
else
break;
}
break;
}
case 'd':
font_info.desc = strtoul (optarg, NULL, 0);
break;
case 'e':
font_info.asce = strtoul (optarg, NULL, 0);
break;
case 'h':
usage (0);
break;
case 'V':
printf ("%s (%s) %s\n", program_name, PACKAGE_NAME, PACKAGE_VERSION);
return 0;
case 'v':
font_verbosity++;
break;
case 0x102:
file_format = ASCII_BITMAPS;
break;
case 0x103:
file_format = WIDTH_SPEC;
break;
default:
usage (1);
break;
}
}
if (file_format == ASCII_BITMAPS && font_info.num_range > 0)
{
grub_util_error ("Option --ascii-bitmaps doesn't accept ranges (use ASCII).");
return 1;
}
else if (file_format == ASCII_BITMAPS)
{
font_info.ranges = xrealloc (font_info.ranges,
GRUB_FONT_RANGE_BLOCK *
sizeof (grub_uint32_t) * 2);
font_info.ranges[0] = (grub_uint32_t) 0x00;
font_info.ranges[1] = (grub_uint32_t) 0x7f;
font_info.num_range = 1;
}
if (! output_file)
grub_util_error ("no output file is specified");
if (FT_Init_FreeType (&ft_lib))
grub_util_error ("FT_Init_FreeType fails");
for (; optind < argc; optind++)
{
FT_Face ft_face;
int size;
FT_Error err;
err = FT_New_Face (ft_lib, argv[optind], font_index, &ft_face);
if (err)
{
grub_printf ("can't open file %s, index %d: error %d", argv[optind],
font_index, err);
if (err > 0 && err < (signed) ARRAY_SIZE (ft_errmsgs))
printf (": %s\n", ft_errmsgs[err]);
else
printf ("\n");
continue;
}
if ((! font_info.name) && (ft_face->family_name))
font_info.name = xstrdup (ft_face->family_name);
size = font_size;
if (! size)
{
if ((ft_face->face_flags & FT_FACE_FLAG_SCALABLE) ||
(! ft_face->num_fixed_sizes))
size = GRUB_FONT_DEFAULT_SIZE;
else
size = ft_face->available_sizes[0].height;
}
font_info.style = ft_face->style_flags;
font_info.size = size;
if (FT_Set_Pixel_Sizes (ft_face, size, size))
grub_util_error ("can't set %dx%d font size", size, size);
add_font (&font_info, ft_face, file_format != PF2);
FT_Done_Face (ft_face);
}
FT_Done_FreeType (ft_lib);
{
int counter[65537];
struct grub_glyph_info *tmp, *cur;
int i;
memset (counter, 0, sizeof (counter));
for (cur = font_info.glyphs_unsorted; cur; cur = cur->next)
counter[(cur->char_code & 0xffff) + 1]++;
for (i = 0; i < 0x10000; i++)
counter[i+1] += counter[i];
tmp = xmalloc (font_info.num_glyphs
* sizeof (tmp[0]));
for (cur = font_info.glyphs_unsorted; cur; cur = cur->next)
tmp[counter[(cur->char_code & 0xffff)]++] = *cur;
memset (counter, 0, sizeof (counter));
for (cur = tmp; cur < tmp + font_info.num_glyphs; cur++)
counter[((cur->char_code & 0xffff0000) >> 16) + 1]++;
for (i = 0; i < 0x10000; i++)
counter[i+1] += counter[i];
font_info.glyphs_sorted = xmalloc (font_info.num_glyphs
* sizeof (font_info.glyphs_sorted[0]));
for (cur = tmp; cur < tmp + font_info.num_glyphs; cur++)
font_info.glyphs_sorted[counter[(cur->char_code & 0xffff0000) >> 16]++]
= *cur;
free (tmp);
}
switch (file_format)
{
case PF2:
write_font_pf2 (&font_info, output_file);
break;
case ASCII_BITMAPS:
write_font_ascii_bitmap (&font_info, output_file);
break;
case WIDTH_SPEC:
write_font_width_spec (&font_info, output_file);
break;
}
if (font_verbosity > 1)
print_glyphs (&font_info);
return 0;
}
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