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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>
#define _GNU_SOURCE 1
#include <argp.h>
#include <assert.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
};
enum
{
GRUB_FONT_FLAG_BOLD = 1,
GRUB_FONT_FLAG_NOBITMAP = 2,
GRUB_FONT_FLAG_NOHINTING = 4,
GRUB_FONT_FLAG_FORCEHINT = 8
};
struct grub_font_info
{
const 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 int font_verbosity;
static 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
/* TRANSLATORS: These qualifiers are used for cursive typography,
mainly Arabic. Note that the terms refer to the visual position
and not logical order and if used in left-to-right script then
leftmost is initial but with right-to-left script like Arabic
rightmost is the initial. */
? ((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))
{
/* TRANSLATORS: "lookup" is taken directly from font specifications
which are formulated as "Under condition X replace LOOKUP with
SUBSTITUITION". "*/
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
/* TRANSLATORS: most font transformations apply only to
some glyphs. Those glyphs are described as "coverage".
There are 2 coverage specifications: list and range.
This warning is thrown when another coverage specification
is detected. */
printf (_("Unsupported coverage specification: %d\n"), covertype);
}
}
}
static 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 font 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] = '?';
/* TRANSLATORS: It's gsub feature, not gsub font. */
printf (_("Unknown gsub font 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);
}
}
static void
write_string_section (const char *name, const char *str,
int *offset, FILE *file,
const char *filename)
{
grub_uint32_t leng, leng_be32;
leng = strlen (str) + 1;
leng_be32 = grub_cpu_to_be32 (leng);
grub_util_write_image (name, 4, file, filename);
grub_util_write_image ((char *) &leng_be32, 4, file, filename);
grub_util_write_image (str, leng, file, filename);
*offset += 8 + leng;
}
static void
write_be16_section (const char *name, grub_uint16_t data, int* offset,
FILE *file, const char *filename)
{
grub_uint32_t leng;
leng = grub_cpu_to_be32 (2);
data = grub_cpu_to_be16 (data);
grub_util_write_image (name, 4, file, filename);
grub_util_write_image ((char *) &leng, 4, file, filename);
grub_util_write_image ((char *) &data, 2, file, filename);
*offset += 10;
}
#pragma GCC diagnostic ignored "-Wunsafe-loop-optimizations"
static 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 - 1; 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);
}
}
}
static 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 (_("cannot write to `%s': %s"), output_file,
strerror (errno));
for (glyph = font_info->glyphs_sorted, num = 0; num < font_info->num_glyphs;
glyph++, num++)
{
if (glyph->width == 8 && glyph->height == 16
&& glyph->x_ofs == 0 && glyph->y_ofs == 0)
fwrite (glyph->bitmap, 16, 1, file);
else
{
grub_uint8_t glph[16];
int p = 0, mask = 0x80;
int row, col;
int dy = 12 - glyph->height - glyph->y_ofs;
for (row = 0; row < 16; row++)
glph[row] = 0;
for (row = 0; row < glyph->height; row++)
for (col = 0; col < glyph->width; col++)
{
int val = glyph->bitmap[p] & mask;
mask >>= 1;
if (mask == 0)
{
mask = 0x80;
p++;
}
if (val && dy + row >= 0
&& dy + row < 16
&& glyph->x_ofs + col >= 0
&& glyph->x_ofs + col < 8)
glph[dy + row] |= 1 << (7 - (glyph->x_ofs + col));
}
fwrite (glph, 16, 1, file);
}
}
fclose (file);
}
static 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 (_("cannot write to `%s': %s"), output_file,
strerror (errno));
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);
}
static void
write_font_pf2 (struct grub_font_info *font_info, char *output_file)
{
FILE *file;
grub_uint32_t leng;
char style_name[20], *font_name, *ptr;
int offset;
struct grub_glyph_info *cur;
file = fopen (output_file, "wb");
if (! file)
grub_util_error (_("cannot write to `%s': %s"), output_file,
strerror (errno));
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,
output_file);
grub_util_write_image ((char *) &leng, 4, file, output_file);
grub_util_write_image (FONT_FORMAT_PFF2_MAGIC, 4, file, output_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 = xmalloc (strlen (font_info->name) + strlen (&style_name[1])
+ 3 + 20);
ptr = stpcpy (font_name, font_info->name);
*ptr++ = ' ';
ptr = stpcpy (ptr, &style_name[1]);
*ptr++ = ' ';
snprintf (ptr, 20, "%d", font_info->size);
write_string_section (FONT_FORMAT_SECTION_NAMES_FONT_NAME,
font_name, &offset, file, output_file);
write_string_section (FONT_FORMAT_SECTION_NAMES_FAMILY,
font_info->name, &offset, file, output_file);
write_string_section (FONT_FORMAT_SECTION_NAMES_WEIGHT,
(font_info->style & FT_STYLE_FLAG_BOLD) ?
"bold" : "normal",
&offset, file, output_file);
write_string_section (FONT_FORMAT_SECTION_NAMES_SLAN,
(font_info->style & FT_STYLE_FLAG_ITALIC) ?
"italic" : "normal",
&offset, file, output_file);
write_be16_section (FONT_FORMAT_SECTION_NAMES_POINT_SIZE,
font_info->size, &offset, file, output_file);
write_be16_section (FONT_FORMAT_SECTION_NAMES_MAX_CHAR_WIDTH,
font_info->max_width, &offset, file, output_file);
write_be16_section (FONT_FORMAT_SECTION_NAMES_MAX_CHAR_HEIGHT,
font_info->max_height, &offset, file, output_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, output_file);
write_be16_section (FONT_FORMAT_SECTION_NAMES_DESCENT,
font_info->desc, &offset, file, output_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, output_file);
grub_util_write_image ((char *) &leng, 4, file, output_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++)
{
grub_uint32_t data32;
grub_uint8_t data8;
data32 = grub_cpu_to_be32 (cur->char_code);
grub_util_write_image ((char *) &data32, 4, file, output_file);
data8 = 0;
grub_util_write_image ((char *) &data8, 1, file, output_file);
data32 = grub_cpu_to_be32 (offset);
grub_util_write_image ((char *) &data32, 4, file, output_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, output_file);
grub_util_write_image ((char *) &leng, 4, file, output_file);
for (cur = font_info->glyphs_sorted;
cur < font_info->glyphs_sorted + font_info->num_glyphs; cur++)
{
grub_uint16_t data;
data = grub_cpu_to_be16 (cur->width);
grub_util_write_image ((char *) &data, 2, file, output_file);
data = grub_cpu_to_be16 (cur->height);
grub_util_write_image ((char *) &data, 2, file, output_file);
data = grub_cpu_to_be16 (cur->x_ofs);
grub_util_write_image ((char *) &data, 2, file, output_file);
data = grub_cpu_to_be16 (cur->y_ofs);
grub_util_write_image ((char *) &data, 2, file, output_file);
data = grub_cpu_to_be16 (cur->device_width);
grub_util_write_image ((char *) &data, 2, file, output_file);
grub_util_write_image ((char *) &cur->bitmap[0], cur->bitmap_size,
file, output_file);
}
fclose (file);
}
static struct argp_option options[] = {
{"output", 'o', N_("FILE"), 0, N_("save output in FILE [required]"), 0},
/* TRANSLATORS: bitmaps are images like e.g. in JPEG. */
{"ascii-bitmaps", 0x102, 0, 0, N_("save only the ASCII bitmaps"), 0},
{"width-spec", 0x103, 0, 0,
/* TRANSLATORS: this refers to creating a file containing the width of
every glyph but not the glyphs themselves. */
N_("create width summary file"), 0},
{"index", 'i', N_("NUM"), 0,
/* TRANSLATORS: some font files may have multiple faces (fonts).
This option is used to chose among them, the first face being '0'.
Rarely used. */
N_("select face index"), 0},
{"range", 'r', N_("FROM-TO[,FROM-TO]"), 0,
/* TRANSLATORS: It refers to the range of characters in font. */
N_("set font range"), 0},
{"name", 'n', N_("NAME"), 0,
/* TRANSLATORS: "family name" for font is just a generic name without suffix
like "Bold". */
N_("set font family name"), 0},
{"size", 's', N_("SIZE"), 0, N_("set font size"), 0},
{"desc", 'd', N_("NUM"), 0, N_("set font descent"), 0},
{"asce", 'c', N_("NUM"), 0, N_("set font ascent"), 0},
{"bold", 'b', 0, 0, N_("convert to bold font"), 0},
{"force-autohint", 'a', 0, 0, N_("force autohint"), 0},
{"no-hinting", 0x101, 0, 0, N_("disable hinting"), 0},
{"no-bitmap", 0x100, 0, 0,
/* TRANSLATORS: some fonts contain bitmap rendering for
some sizes. This option forces rerendering even if
pre-rendered bitmap is available.
*/
N_("ignore bitmap strikes when loading"), 0},
{"verbose", 'v', 0, 0, N_("print verbose messages."), 0},
{ 0, 0, 0, 0, 0, 0 }
};
struct arguments
{
struct grub_font_info font_info;
size_t nfiles;
size_t files_max;
char **files;
char *output_file;
int font_index;
int font_size;
enum file_formats file_format;
};
static error_t
argp_parser (int key, char *arg, struct argp_state *state)
{
/* Get the input argument from argp_parse, which we
know is a pointer to our arguments structure. */
struct arguments *arguments = state->input;
switch (key)
{
case 'b':
arguments->font_info.flags |= GRUB_FONT_FLAG_BOLD;
break;
case 0x100:
arguments->font_info.flags |= GRUB_FONT_FLAG_NOBITMAP;
break;
case 0x101:
arguments->font_info.flags |= GRUB_FONT_FLAG_NOHINTING;
break;
case 'a':
arguments->font_info.flags |= GRUB_FONT_FLAG_FORCEHINT;
break;
case 'o':
arguments->output_file = xstrdup (arg);
break;
case 'n':
arguments->font_info.name = xstrdup (arg);
break;
case 'i':
arguments->font_index = strtoul (arg, NULL, 0);
break;
case 's':
arguments->font_size = strtoul (arg, NULL, 0);
break;
case 'r':
{
char *p = arg;
while (1)
{
grub_uint32_t a, b;
a = strtoul (p, &p, 0);
if (*p != '-')
/* TRANSLATORS: It refers to the range of characters in font. */
grub_util_error ("%s", _("invalid font range"));
b = strtoul (p + 1, &p, 0);
if ((arguments->font_info.num_range
& (GRUB_FONT_RANGE_BLOCK - 1)) == 0)
arguments->font_info.ranges = xrealloc (arguments->font_info.ranges,
(arguments->font_info.num_range +
GRUB_FONT_RANGE_BLOCK) *
sizeof (grub_uint32_t) * 2);
arguments->font_info.ranges[arguments->font_info.num_range * 2] = a;
arguments->font_info.ranges[arguments->font_info.num_range * 2 + 1] = b;
arguments->font_info.num_range++;
if (*p)
{
if (*p != ',')
grub_util_error ("%s", _("invalid font range"));
p++;
}
else
break;
}
break;
}
case 'd':
arguments->font_info.desc = strtoul (arg, NULL, 0);
break;
case 'c':
arguments->font_info.asce = strtoul (arg, NULL, 0);
break;
case 'v':
font_verbosity++;
break;
case 0x102:
arguments->file_format = ASCII_BITMAPS;
break;
case 0x103:
arguments->file_format = WIDTH_SPEC;
break;
case ARGP_KEY_ARG:
assert (arguments->nfiles < arguments->files_max);
arguments->files[arguments->nfiles++] = xstrdup(arg);
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
static struct argp argp = {
options, argp_parser, N_("[OPTIONS] FONT_FILES"),
N_("Convert common font file formats into PF2"),
NULL, NULL, NULL
};
int
main (int argc, char *argv[])
{
FT_Library ft_lib;
struct arguments arguments;
set_program_name (argv[0]);
grub_util_init_nls ();
memset (&arguments, 0, sizeof (struct arguments));
arguments.file_format = PF2;
arguments.files_max = argc + 1;
arguments.files = xmalloc ((arguments.files_max + 1)
* sizeof (arguments.files[0]));
memset (arguments.files, 0, (arguments.files_max + 1)
* sizeof (arguments.files[0]));
if (argp_parse (&argp, argc, argv, 0, 0, &arguments) != 0)
{
fprintf (stderr, "%s", _("Error in parsing command line arguments\n"));
exit(1);
}
if (arguments.file_format == ASCII_BITMAPS
&& arguments.font_info.num_range > 0)
{
grub_util_error ("%s", _("Option --ascii-bitmaps doesn't accept ranges (it always uses ASCII)."));
return 1;
}
else if (arguments.file_format == ASCII_BITMAPS)
{
arguments.font_info.ranges = xrealloc (arguments.font_info.ranges,
GRUB_FONT_RANGE_BLOCK *
sizeof (grub_uint32_t) * 2);
arguments.font_info.ranges[0] = (grub_uint32_t) 0x00;
arguments.font_info.ranges[1] = (grub_uint32_t) 0x7f;
arguments.font_info.num_range = 1;
}
if (! arguments.output_file)
grub_util_error ("%s", _("output file must be specified"));
if (FT_Init_FreeType (&ft_lib))
grub_util_error ("%s", _("FT_Init_FreeType fails"));
{
size_t i;
for (i = 0; i < arguments.nfiles; i++)
{
FT_Face ft_face;
int size;
FT_Error err;
err = FT_New_Face (ft_lib, arguments.files[i],
arguments.font_index, &ft_face);
if (err)
{
printf (_("can't open file %s, index %d: error %d"),
arguments.files[i],
arguments.font_index, err);
if (err > 0 && err < (signed) ARRAY_SIZE (ft_errmsgs))
printf (": %s\n", ft_errmsgs[err]);
else
printf ("\n");
continue;
}
if ((! arguments.font_info.name) && (ft_face->family_name))
arguments.font_info.name = xstrdup (ft_face->family_name);
size = arguments.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;
}
arguments.font_info.style = ft_face->style_flags;
arguments.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 (&arguments.font_info, ft_face, arguments.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 = arguments.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 (arguments.font_info.num_glyphs
* sizeof (tmp[0]));
for (cur = arguments.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 + arguments.font_info.num_glyphs; cur++)
counter[((cur->char_code & 0xffff0000) >> 16) + 1]++;
for (i = 0; i < 0x10000; i++)
counter[i+1] += counter[i];
arguments.font_info.glyphs_sorted = xmalloc (arguments.font_info.num_glyphs
* sizeof (arguments.font_info.glyphs_sorted[0]));
for (cur = tmp; cur < tmp + arguments.font_info.num_glyphs; cur++)
arguments.font_info.glyphs_sorted[counter[(cur->char_code & 0xffff0000)
>> 16]++] = *cur;
free (tmp);
}
switch (arguments.file_format)
{
case PF2:
write_font_pf2 (&arguments.font_info, arguments.output_file);
break;
case ASCII_BITMAPS:
write_font_ascii_bitmap (&arguments.font_info, arguments.output_file);
break;
case WIDTH_SPEC:
write_font_width_spec (&arguments.font_info, arguments.output_file);
break;
}
if (font_verbosity > 1)
print_glyphs (&arguments.font_info);
{
size_t i;
for (i = 0; i < arguments.nfiles; i++)
free (arguments.files[i]);
}
return 0;
}
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