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-rw-r--r--util/grub-mkfont.c1287
1 files changed, 1287 insertions, 0 deletions
diff --git a/util/grub-mkfont.c b/util/grub-mkfont.c
new file mode 100644
index 0000000..0fe45a6
--- /dev/null
+++ b/util/grub-mkfont.c
@@ -0,0 +1,1287 @@
+/*
+ * 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>
+
+#ifndef GRUB_BUILD
+#define _GNU_SOURCE 1
+#pragma GCC diagnostic ignored "-Wmissing-prototypes"
+#pragma GCC diagnostic ignored "-Wmissing-declarations"
+#include <argp.h>
+#pragma GCC diagnostic error "-Wmissing-prototypes"
+#pragma GCC diagnostic error "-Wmissing-declarations"
+#endif
+#include <assert.h>
+
+#include <errno.h>
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include FT_TRUETYPE_TAGS_H
+#include FT_TRUETYPE_TABLES_H
+#include FT_SYNTHESIS_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
+
+#ifndef GRUB_BUILD
+#include "progname.h"
+#endif
+
+#ifdef GRUB_BUILD
+#define grub_util_fopen fopen
+#endif
+
+#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
+};
+
+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 (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;
+} GRUB_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;
+ } GRUB_PACKED features[0];
+} GRUB_PACKED;
+
+struct gsub_feature
+{
+ grub_uint16_t params;
+ grub_uint16_t lookupcount;
+ grub_uint16_t lookupindices[0];
+} GRUB_PACKED;
+
+struct gsub_lookup_list
+{
+ grub_uint16_t count;
+ grub_uint16_t offsets[0];
+} GRUB_PACKED;
+
+struct gsub_lookup
+{
+ grub_uint16_t type;
+ grub_uint16_t flag;
+ grub_uint16_t subtablecount;
+ grub_uint16_t subtables[0];
+} GRUB_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];
+ };
+ };
+} GRUB_PACKED;
+
+struct gsub_coverage_list
+{
+ grub_uint16_t type;
+ grub_uint16_t count;
+ grub_uint16_t glyphs[0];
+} GRUB_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;
+ } GRUB_PACKED ranges[0];
+} GRUB_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
+subst (const struct gsub_substitution *sub, grub_uint32_t glyph,
+ struct glyph_replace **target, int *i)
+{
+ 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);
+}
+
+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 = NULL;
+ struct gsub_substitution *sub;
+
+ 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)
+ {
+ grub_util_info ("unsupported substitution flag: 0x%x",
+ 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_get_unaligned16 (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 (sub, grub_be_to_cpu16 (cover->glyphs[l]), target, &i);
+ }
+ 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 (sub, m, target, &i);
+ }
+ 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. */
+ fprintf (stderr,
+ _("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)
+ fprintf (stderr,
+ _("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. */
+ grub_util_info ("Unknown gsub font feature 0x%x (%s)",
+ 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_compile_time (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;
+}
+
+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_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 = grub_util_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_compile_time (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 = grub_stpcpy (font_name, font_info->name);
+ *ptr++ = ' ';
+ ptr = grub_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);
+}
+
+#ifndef GRUB_BUILD
+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. */
+ {"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 }
+};
+#define my_argp_parse argp_parse
+#define MY_ARGP_KEY_ARG ARGP_KEY_ARG
+#define my_error_t error_t
+#define MY_ARGP_ERR_UNKNOWN ARGP_ERR_UNKNOWN
+#define my_argp_state argp_state
+
+#else
+
+#define my_error_t int
+#define MY_ARGP_ERR_UNKNOWN -1
+#define MY_ARGP_KEY_ARG -1
+#define my_argp_parse(a, argc, argv, b, c, st) my_argp_parse_real(argc, argv, st)
+struct my_argp_state
+{
+ void *input;
+};
+
+#endif
+
+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;
+};
+
+#ifdef GRUB_BUILD
+
+static int
+has_argument (int v)
+{
+ return v =='o' || v == 'i' || v == 'r' || v == 'n' || v == 's'
+ || v == 'd' || v == 'c';
+}
+
+#endif
+
+static my_error_t
+argp_parser (int key, char *arg, struct my_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 MY_ARGP_KEY_ARG:
+ assert (arguments->nfiles < arguments->files_max);
+ arguments->files[arguments->nfiles++] = xstrdup(arg);
+ break;
+
+ default:
+ return MY_ARGP_ERR_UNKNOWN;
+ }
+ return 0;
+}
+
+#ifdef GRUB_BUILD
+
+/* We don't require host platform to have argp. In the same time configuring
+ gnulib for build would result in even worse mess. So we have our
+ minimalistic argp replacement just enough for build system. Most
+ argp features are omitted. */
+
+static int
+my_argp_parse_real (int argc, char **argv, void *st)
+{
+ int curar;
+ struct my_argp_state p;
+
+ p.input = st;
+
+ for (curar = 1; curar < argc; )
+ {
+ if (argv[curar][0] == '-')
+ {
+ if (has_argument (argv[curar][1])
+ && curar + 1 >= argc)
+ return 1;
+ if (has_argument (argv[curar][1]))
+ {
+ if (argp_parser (argv[curar][1], argv[curar + 1], &p))
+ return 1;
+ curar += 2;
+ continue;
+ }
+ if (argp_parser (argv[curar][1], NULL, &p))
+ return 1;
+ curar++;
+ continue;
+ }
+ if (argp_parser (MY_ARGP_KEY_ARG, argv[curar], &p))
+ return 1;
+ curar++;
+ }
+ return 0;
+}
+#endif
+
+#ifndef GRUB_BUILD
+static struct argp argp = {
+ options, argp_parser, N_("[OPTIONS] FONT_FILES"),
+ N_("Convert common font file formats into PF2"),
+ NULL, NULL, NULL
+};
+#endif
+
+int
+main (int argc, char *argv[])
+{
+ FT_Library ft_lib;
+ struct arguments arguments;
+
+#ifndef GRUB_BUILD
+ grub_util_host_init (&argc, &argv);
+#endif
+
+ 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 (my_argp_parse (&argp, argc, argv, 0, 0, &arguments) != 0)
+ {
+ fprintf (stderr, "%s", _("Error in parsing command line arguments\n"));
+ exit(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;
+
+ err = FT_Set_Pixel_Sizes (ft_face, size, size);
+
+ if (err)
+ grub_util_error (_("can't set %dx%d font size: Freetype error %d: %s"),
+ size, size, err,
+ (err > 0 && err < (signed) ARRAY_SIZE (ft_errmsgs))
+ ? ft_errmsgs[err] : "");
+ 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;
+ }
+
+ 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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 17:28:36 +0000