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-rw-r--r--util/grub-mkfont.c1240
1 files changed, 1240 insertions, 0 deletions
diff --git a/util/grub-mkfont.c b/util/grub-mkfont.c
new file mode 100644
index 0000000..3108d46
--- /dev/null
+++ b/util/grub-mkfont.c
@@ -0,0 +1,1240 @@
+/*
+ * 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;
+ 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++)
+ {
+ grub_uint32_t data32;
+ grub_uint8_t data8;
+ data32 = grub_cpu_to_be32 (cur->char_code);
+ grub_util_write_image ((char *) &data32, 4, file);
+ data8 = 0;
+ grub_util_write_image ((char *) &data8, 1, file);
+ data32 = grub_cpu_to_be32 (offset);
+ grub_util_write_image ((char *) &data32, 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++)
+ {
+ grub_uint16_t data;
+ 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-14 19:26:43 +0000