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authorKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
committerKarl Berry <karl@freefriends.org>2021-02-25 19:22:25 +0000
commitad547a6b5986815fda458221149728d9d9ab1d87 (patch)
tree16296910eb3eca724371474ea9aea3994dc69614 /Build/source/texk/web2c/pdftexdir/writettf.c
parent947b43de3dd21d58ccc2ffadefc4441ea1c2a813 (diff)
restore Build,TODO from r57911
git-svn-id: svn://tug.org/texlive/trunk@57915 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/web2c/pdftexdir/writettf.c')
-rw-r--r--Build/source/texk/web2c/pdftexdir/writettf.c1463
1 files changed, 1463 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/pdftexdir/writettf.c b/Build/source/texk/web2c/pdftexdir/writettf.c
new file mode 100644
index 00000000000..4ae5092e6b9
--- /dev/null
+++ b/Build/source/texk/web2c/pdftexdir/writettf.c
@@ -0,0 +1,1463 @@
+/*
+Copyright 1996-2014 Han The Thanh, <thanh@pdftex.org>
+
+This file is part of pdfTeX.
+
+pdfTeX 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 2 of the License, or
+(at your option) any later version.
+
+pdfTeX 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 this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "ptexlib.h"
+#include "writettf.h"
+#include <string.h>
+
+#define DEFAULT_NTABS 14
+#define NEW_CMAP_SIZE 2
+
+#define ttf_putchar fb_putchar
+#define ttf_offset fb_offset
+#define ttf_seek_outbuf fb_seek
+
+#define INFILE ttf_file
+
+#define ttf_open() \
+ open_input(&ttf_file, kpse_truetype_format, FOPEN_RBIN_MODE)
+#define ttf_close() xfclose(ttf_file, cur_file_name)
+#define ttf_getchar() xgetc(ttf_file)
+#define ttf_eof() feof(ttf_file)
+
+typedef struct {
+ TTF_LONG offset;
+ TTF_LONG newoffset;
+ TTF_UFWORD advWidth;
+ TTF_FWORD lsb;
+ const char *name; /* name of glyph */
+ TTF_SHORT newindex; /* new index of glyph in output file */
+ TTF_USHORT name_index; /* index of name as read from font file */
+} glyph_entry;
+
+typedef struct {
+ const char *name; /* name of glyph */
+ long code; /* charcode in case of subfonts */
+ long newindex; /* new index of glyph in output file */
+} ttfenc_entry;
+
+typedef struct {
+ TTF_USHORT platform_id;
+ TTF_USHORT encoding_id;
+ TTF_USHORT language_id;
+ TTF_USHORT name_id;
+ TTF_USHORT length;
+ TTF_USHORT offset;
+ TTF_USHORT new_offset;
+ TTF_USHORT new_length;
+} name_record;
+
+typedef struct {
+ char *ttf_name;
+ TTF_USHORT pid;
+ TTF_USHORT eid;
+ long *table;
+} ttf_cmap_entry;
+
+static TTF_USHORT ntabs;
+static TTF_USHORT upem;
+static TTF_FIXED post_format;
+static TTF_SHORT loca_format;
+static TTF_ULONG last_glyf_offset;
+static TTF_USHORT glyphs_count;
+static TTF_USHORT new_glyphs_count;
+static TTF_USHORT nhmtxs;
+static TTF_USHORT new_ntabs;
+
+static glyph_entry *glyph_tab;
+static long *glyph_index;
+static cmap_entry *cmap_tab, new_cmap_tab[NEW_CMAP_SIZE];
+static name_record *name_tab;
+static int name_record_num;
+static char *name_buf;
+static int name_buf_size;
+static dirtab_entry *dir_tab;
+static char *glyph_name_buf;
+static TTF_ULONG checksum;
+static TTF_ULONG tab_length;
+static TTF_ULONG tmp_ulong;
+static TTF_ULONG checkSumAdjustment_offset;
+static FILE *ttf_file;
+static ttfenc_entry ttfenc_tab[256];
+
+static fd_entry *fd_cur; /* pointer to the current font descriptor */
+
+static struct avl_table *ttf_cmap_tree = NULL;
+
+integer ttf_length;
+
+#include "macnames.c"
+
+static const char *newtabnames[] = {
+ "OS/2",
+ "PCLT",
+ "cmap",
+ "cvt ",
+ "fpgm",
+ "glyf",
+ "head",
+ "hhea",
+ "hmtx",
+ "loca",
+ "maxp",
+ "name",
+ "post",
+ "prep"
+};
+
+static ttf_cmap_entry *new_ttf_cmap_entry(void)
+{
+ ttf_cmap_entry *e;
+ e = xtalloc(1, ttf_cmap_entry);
+ e->ttf_name = NULL;
+ e->table = NULL;
+ return e;
+}
+
+static void destroy_ttf_cmap_entry(void *pa, void *pb)
+{
+ ttf_cmap_entry *p;
+ p = (ttf_cmap_entry *) pa;
+ xfree(p->ttf_name);
+ xfree(p->table);
+ xfree(p);
+}
+
+void ttf_free(void)
+{
+ if (ttf_cmap_tree != NULL)
+ avl_destroy(ttf_cmap_tree, destroy_ttf_cmap_entry);
+}
+
+static int comp_ttf_cmap_entry(const void *pa, const void *pb, void *p)
+{
+ const ttf_cmap_entry *p1 = (const ttf_cmap_entry *) pa,
+ *p2 = (const ttf_cmap_entry *) pb;
+ int i;
+ assert(p1->ttf_name != NULL && p2->ttf_name != NULL);
+ if ((i = strcmp(p1->ttf_name, p2->ttf_name)) != 0)
+ return i;
+ cmp_return(p1->pid, p2->pid);
+ cmp_return(p1->eid, p2->eid);
+ return 0;
+}
+
+static unsigned char ttf_addchksm(unsigned char b)
+{
+ tmp_ulong = (tmp_ulong << 8) + b;
+ tab_length++;
+ if (tab_length % 4 == 0) {
+ checksum += tmp_ulong;
+ tmp_ulong = 0;
+ }
+ return b;
+}
+
+static TTF_ULONG ttf_getchksm(void)
+{
+ while (tab_length % 4 != 0)
+ ttf_putchar(ttf_addchksm(0)); /* ttf_addchksm updates tab_length */
+ return checksum;
+}
+
+static long ttf_putnum(int s, long n)
+{
+ long i = n;
+ char buf[TTF_LONG_SIZE + 1], *p = buf;
+ while (s-- > 0) {
+ *p++ = i & 0xFF;
+ i >>= 8;
+ }
+ p--;
+ while (p >= buf)
+ ttf_putchar(ttf_addchksm(*p--));
+ return n;
+}
+
+static long ttf_getnum(int s)
+{
+ long i = 0;
+ int c;
+ while (s > 0) {
+ if ((c = ttf_getchar()) < 0)
+ pdftex_fail("unexpected EOF");
+ i = (i << 8) + c;
+ s--;
+ }
+ return i;
+}
+
+static long ttf_funit(long n)
+{
+ if (n < 0)
+ return -((-n / upem) * 1000 + ((-n % upem) * 1000) / upem);
+ else
+ return (n / upem) * 1000 + ((n % upem) * 1000) / upem;
+}
+
+static void ttf_ncopy(int n)
+{
+ while (n-- > 0)
+ copy_byte();
+}
+
+static dirtab_entry *ttf_name_lookup(const char *s, boolean required)
+{
+ dirtab_entry *tab;
+ for (tab = dir_tab; tab - dir_tab < ntabs; tab++)
+ if (strncmp(tab->tag, s, 4) == 0)
+ break;
+ if (tab - dir_tab == ntabs) {
+ if (required)
+ pdftex_fail("can't find table `%s'", s);
+ else
+ tab = NULL;
+ }
+ return tab;
+}
+
+static dirtab_entry *ttf_seek_tab(const char *name, TTF_LONG offset)
+{
+ dirtab_entry *tab = ttf_name_lookup(name, true);
+ xfseek(INFILE, tab->offset + offset, SEEK_SET, cur_file_name);
+ return tab;
+}
+
+static void ttf_seek_off(TTF_LONG offset)
+{
+ xfseek(INFILE, offset, SEEK_SET, cur_file_name);
+}
+
+static void ttf_copy_encoding(void)
+{
+ int i, *q;
+ void **aa;
+ char **glyph_names;
+ long *charcodes;
+ static char buf[SMALL_BUF_SIZE];
+ struct avl_traverser t;
+ ttfenc_entry *e = ttfenc_tab;
+
+ assert(fd_cur->tx_tree != NULL); /* this must be set in create_fontdictionary */
+
+ if (fd_cur->fe != NULL) {
+ glyph_names = fd_cur->fe->glyph_names;
+ assert(glyph_names != NULL);
+
+ for (i = 0; i < 256; i++)
+ ttfenc_tab[i].name = notdef;
+
+ /* a workaround for a bug of AcroReader 4.0 */
+ if (strcmp(glyph_names[97], "a") == 0) {
+ q = xtalloc(1, int);
+ *q = 'a';
+ aa = avl_probe(fd_cur->tx_tree, q);
+ assert(aa != NULL);
+ }
+ /* end of workaround */
+
+ /* take over collected characters from TeX, reencode them */
+ avl_t_init(&t, fd_cur->tx_tree);
+ for (q = (int *) avl_t_first(&t, fd_cur->tx_tree); q != NULL;
+ q = (int *) avl_t_next(&t)) {
+ assert(*q >= 0 && *q < 256);
+ ttfenc_tab[*q].name = glyph_names[*q];
+ }
+ make_subset_tag(fd_cur);
+ } else if (is_subfont(fd_cur->fm)) {
+ charcodes = fd_cur->fm->subfont->charcodes;
+ assert(charcodes != NULL);
+
+ for (i = 0; i < 256; i++)
+ ttfenc_tab[i].code = -1;
+
+ /* take over collected characters from TeX */
+ avl_t_init(&t, fd_cur->tx_tree);
+ for (q = (int *) avl_t_first(&t, fd_cur->tx_tree); q != NULL;
+ q = (int *) avl_t_next(&t)) {
+ assert(*q >= 0 && *q < 256);
+ e = ttfenc_tab + *q;
+ e->code = charcodes[*q];
+ if (e->code == -1)
+ pdftex_warn
+ ("character %i in subfont %s is not mapped to any charcode",
+ *q, fd_cur->fm->tfm_name);
+ else {
+ assert(e->code < 0x10000);
+ sprintf(buf, "/c%4.4X", (int) e->code);
+ aa = avl_probe(fd_cur->gl_tree, xstrdup(buf));
+ assert(aa != NULL);
+ }
+ }
+ make_subset_tag(fd_cur);
+ } else
+ assert(0);
+}
+
+#define ttf_append_byte(B)\
+do {\
+ if (name_tab[i].platform_id == 3)\
+ *q++ = 0;\
+ *q++ = B;\
+} while (0)
+
+static char *strip_spaces_and_delims(char *s, int l)
+{
+ static char buf[SMALL_BUF_SIZE];
+ char *p = buf;
+ int i;
+
+ assert(l >= 0 && l < (int) sizeof(buf));
+
+ for (i = 0; i < l; s++, i++) {
+ if (*s == '(' || *s == ')' || *s == '<' || *s == '>' ||
+ *s == '[' || *s == ']' || *s == '{' || *s == '}' ||
+ *s == '/' || *s == '%' || isspace((unsigned char)*s))
+ continue;
+ *p++ = *s;
+ }
+ *p = 0;
+ return buf;
+}
+
+static void ttf_read_name(void)
+{
+ int i, j;
+ dirtab_entry *tab = ttf_seek_tab("name", TTF_USHORT_SIZE);
+ char *p, buf[SMALL_BUF_SIZE];
+ name_record_num = get_ushort();
+ name_tab = xtalloc(name_record_num, name_record);
+ name_buf_size = tab->length -
+ (3 * TTF_USHORT_SIZE + name_record_num * 6 * TTF_USHORT_SIZE);
+ name_buf = xtalloc(name_buf_size, char);
+ ttf_skip(TTF_USHORT_SIZE);
+ for (i = 0; i < name_record_num; i++) {
+ name_tab[i].platform_id = get_ushort();
+ name_tab[i].encoding_id = get_ushort();
+ name_tab[i].language_id = get_ushort();
+ name_tab[i].name_id = get_ushort();
+ name_tab[i].length = get_ushort();
+ name_tab[i].offset = get_ushort();
+ }
+ for (p = name_buf; p - name_buf < name_buf_size; p++)
+ *p = get_char();
+ /* look for PS font name */
+ for (i = 0; i < name_record_num; i++) {
+ if (name_tab[i].platform_id == 1 &&
+ name_tab[i].encoding_id == 0 && name_tab[i].name_id == 6) {
+ xfree(fd_cur->fontname);
+ fd_cur->fontname =
+ xstrdup(strip_spaces_and_delims(name_buf + name_tab[i].offset,
+ name_tab[i].length));
+ fd_cur->font_dim[FONTNAME_CODE].set = true;
+ break;
+ }
+ }
+ if (!fd_cur->font_dim[FONTNAME_CODE].set) {
+ for (i = 0; i < name_record_num; i++) {
+ if (name_tab[i].platform_id == 3 &&
+ (name_tab[i].encoding_id == 0 || name_tab[i].encoding_id == 1) &&
+ name_tab[i].name_id == 6) {
+ xfree(fd_cur->fontname);
+ assert(name_tab[i].length < sizeof(buf));
+ for (j = 0, p = buf; j < name_tab[i].length; j += 2)
+ *p++ = name_buf[name_tab[i].offset + j + 1];
+ *p = 0;
+ fd_cur->fontname = xstrdup(strip_spaces_and_delims(buf, strlen(buf)));
+ fd_cur->font_dim[FONTNAME_CODE].set = true;
+ break;
+ }
+ }
+ }
+}
+
+static void ttf_read_mapx(void)
+{
+ glyph_entry *glyph;
+ ttf_seek_tab("maxp", TTF_FIXED_SIZE);
+ glyph_tab = xtalloc(1 + (glyphs_count = get_ushort()), glyph_entry);
+ for (glyph = glyph_tab; glyph - glyph_tab < glyphs_count; glyph++) {
+ glyph->newindex = -1;
+ glyph->newoffset = 0;
+ glyph->name_index = 0;
+ glyph->name = notdef;
+ }
+ glyph_index = xtalloc(glyphs_count + 1, long);
+ glyph_index[0] = 0; /* index of ".notdef" glyph */
+ glyph_index[1] = 1; /* index of ".null" glyph */
+}
+
+static void ttf_read_head(void)
+{
+ ttf_seek_tab("head",
+ 2 * TTF_FIXED_SIZE + 2 * TTF_ULONG_SIZE + TTF_USHORT_SIZE);
+ upem = get_ushort();
+ ttf_skip(16);
+ fd_cur->font_dim[FONTBBOX1_CODE].val = ttf_funit(get_fword());
+ fd_cur->font_dim[FONTBBOX2_CODE].val = ttf_funit(get_fword());
+ fd_cur->font_dim[FONTBBOX3_CODE].val = ttf_funit(get_fword());
+ fd_cur->font_dim[FONTBBOX4_CODE].val = ttf_funit(get_fword());
+ fd_cur->font_dim[FONTBBOX1_CODE].set = true;
+ fd_cur->font_dim[FONTBBOX2_CODE].set = true;
+ fd_cur->font_dim[FONTBBOX3_CODE].set = true;
+ fd_cur->font_dim[FONTBBOX4_CODE].set = true;
+ ttf_skip(2 * TTF_USHORT_SIZE + TTF_SHORT_SIZE);
+ loca_format = get_short();
+}
+
+static void ttf_read_hhea(void)
+{
+ ttf_seek_tab("hhea", TTF_FIXED_SIZE);
+ fd_cur->font_dim[ASCENT_CODE].val = ttf_funit(get_fword());
+ fd_cur->font_dim[DESCENT_CODE].val = ttf_funit(get_fword());
+ fd_cur->font_dim[ASCENT_CODE].set = true;
+ fd_cur->font_dim[DESCENT_CODE].set = true;
+ ttf_skip(TTF_FWORD_SIZE + TTF_UFWORD_SIZE + 3 * TTF_FWORD_SIZE +
+ 8 * TTF_SHORT_SIZE);
+ nhmtxs = get_ushort();
+}
+
+static void ttf_read_pclt(void)
+{
+ if (ttf_name_lookup("PCLT", false) == NULL)
+ return;
+ ttf_seek_tab("PCLT", TTF_FIXED_SIZE + TTF_ULONG_SIZE + TTF_USHORT_SIZE);
+ fd_cur->font_dim[XHEIGHT_CODE].val = ttf_funit(get_ushort());
+ ttf_skip(2 * TTF_USHORT_SIZE);
+ fd_cur->font_dim[CAPHEIGHT_CODE].val = ttf_funit(get_ushort());
+ fd_cur->font_dim[XHEIGHT_CODE].set = true;
+ fd_cur->font_dim[CAPHEIGHT_CODE].set = true;
+}
+
+static void ttf_read_hmtx(void)
+{
+ glyph_entry *glyph;
+ TTF_UFWORD last_advWidth;
+ ttf_seek_tab("hmtx", 0);
+ for (glyph = glyph_tab; glyph - glyph_tab < nhmtxs; glyph++) {
+ glyph->advWidth = get_ufword();
+ glyph->lsb = get_ufword();
+ }
+ if (nhmtxs < glyphs_count) {
+ last_advWidth = glyph[-1].advWidth;
+ for (; glyph - glyph_tab < glyphs_count; glyph++) {
+ glyph->advWidth = last_advWidth;
+ glyph->lsb = get_ufword();
+ }
+ }
+}
+
+static void ttf_read_post(void)
+{
+ int k, nnames;
+ long length;
+ long int_part, frac_part;
+ int sign = 1;
+ TTF_FIXED italic_angle;
+ char *p;
+ glyph_entry *glyph;
+ const dirtab_entry *tab = ttf_seek_tab("post", 0);
+ post_format = get_fixed();
+ italic_angle = get_fixed();
+ int_part = italic_angle >> 16;
+ if (int_part > 0x7FFF) { /* a negative number */
+ int_part = 0x10000 - int_part;
+ sign = -1;
+ }
+ frac_part = italic_angle % 0x10000;
+ fd_cur->font_dim[ITALIC_ANGLE_CODE].val =
+ sign * (int_part + frac_part * 1.0 / 0x10000);
+ fd_cur->font_dim[ITALIC_ANGLE_CODE].set = true;
+ if (glyph_tab == NULL)
+ return; /* being called from writeotf() */
+ ttf_skip(2 * TTF_FWORD_SIZE + 5 * TTF_ULONG_SIZE);
+ switch (post_format) {
+ case 0x10000:
+ for (glyph = glyph_tab; glyph - glyph_tab < NMACGLYPHS; glyph++) {
+ glyph->name = mac_glyph_names[glyph - glyph_tab];
+ glyph->name_index = glyph - glyph_tab;
+ }
+ break;
+ case 0x20000:
+ nnames = get_ushort(); /* some fonts have this value different from nglyphs */
+ for (glyph = glyph_tab; glyph - glyph_tab < nnames; glyph++)
+ glyph->name_index = get_ushort();
+ length = tab->length - (xftell(INFILE, cur_file_name) - tab->offset);
+ glyph_name_buf = xtalloc(length, char);
+ for (p = glyph_name_buf; p - glyph_name_buf < length;) {
+ for (k = get_byte(); k > 0; k--)
+ *p++ = get_char();
+ *p++ = 0;
+ }
+ for (glyph = glyph_tab; glyph - glyph_tab < nnames; glyph++) {
+ if (glyph->name_index < NMACGLYPHS)
+ glyph->name = mac_glyph_names[glyph->name_index];
+ else {
+ p = glyph_name_buf;
+ k = glyph->name_index - NMACGLYPHS;
+ for (; k > 0; k--)
+ p = strend(p) + 1;
+ glyph->name = p;
+ }
+ }
+ break;
+ default:
+ pdftex_warn("unsupported format (%.8X) of `post' table, assuming 3.0",
+ (unsigned int) post_format);
+ case 0x00030000:
+ for (glyph = glyph_tab; glyph - glyph_tab < NMACGLYPHS; glyph++) {
+ glyph->name_index = glyph - glyph_tab;
+ }
+ }
+}
+
+static void ttf_read_loca(void)
+{
+ glyph_entry *glyph;
+ ttf_seek_tab("loca", 0);
+ if (loca_format != 0)
+ for (glyph = glyph_tab; glyph - glyph_tab < glyphs_count + 1; glyph++)
+ glyph->offset = get_ulong();
+ else
+ for (glyph = glyph_tab; glyph - glyph_tab < glyphs_count + 1; glyph++)
+ glyph->offset = get_ushort() << 1;
+}
+
+static void ttf_read_tabdir(void)
+{
+ int i;
+ dirtab_entry *tab;
+ ttf_skip(TTF_FIXED_SIZE); /* ignore the sfnt number */
+ dir_tab = xtalloc(ntabs = get_ushort(), dirtab_entry);
+ ttf_skip(3 * TTF_USHORT_SIZE);
+ for (tab = dir_tab; tab - dir_tab < ntabs; tab++) {
+ for (i = 0; i < 4; i++)
+ tab->tag[i] = get_char();
+ tab->checksum = get_ulong();
+ tab->offset = get_ulong();
+ tab->length = get_ulong();
+ }
+}
+
+static ttf_cmap_entry *ttf_read_cmap(char *ttf_name, int pid, int eid,
+ boolean warn)
+{
+ seg_entry *seg_tab, *s;
+ TTF_USHORT *glyphId, format, segCount;
+ TTF_USHORT ncmapsubtabs, tmp_pid, tmp_eid;
+ TTF_ULONG cmap_offset, tmp_offset;
+ long n, i, k, length, index;
+ ttf_cmap_entry tmp_e, *p;
+ void **aa;
+
+ /* loop up in ttf_cmap_tree first, return if found */
+ tmp_e.ttf_name = ttf_name;
+ tmp_e.pid = pid;
+ tmp_e.eid = eid;
+ if (ttf_cmap_tree == NULL) {
+ ttf_cmap_tree = avl_create(comp_ttf_cmap_entry, NULL, &avl_xallocator);
+ assert(ttf_cmap_tree != NULL);
+ }
+ p = (ttf_cmap_entry *) avl_find(ttf_cmap_tree, &tmp_e);
+ if (p != NULL)
+ return p;
+
+ /* not found, have to read it */
+ ttf_seek_tab("cmap", TTF_USHORT_SIZE); /* skip the table version number (=0) */
+ ncmapsubtabs = get_ushort();
+ cmap_offset = xftell(INFILE, cur_file_name) - 2 * TTF_USHORT_SIZE;
+ cmap_tab = xtalloc(ncmapsubtabs, cmap_entry);
+ for (i = 0; i < ncmapsubtabs; ++i) {
+ tmp_pid = get_ushort();
+ tmp_eid = get_ushort();
+ tmp_offset = get_ulong();
+ if (tmp_pid == pid && tmp_eid == eid) {
+ ttf_seek_off(cmap_offset + tmp_offset);
+ format = get_ushort();
+ if (format == 4)
+ goto read_cmap_format_4;
+ else {
+ if (warn)
+ pdftex_warn("cmap format %i unsupported", format);
+ return NULL;
+ }
+ }
+ }
+ if (warn)
+ pdftex_warn("cannot find cmap subtable for (pid,eid) = (%i, %i)",
+ pid, eid);
+ return NULL;
+ read_cmap_format_4:
+ /* initialize the new entry */
+ p = new_ttf_cmap_entry();
+ p->ttf_name = xstrdup(ttf_name);
+ p->pid = pid;
+ p->eid = eid;
+ p->table = xtalloc(0x10000, long);
+ for (i = 0; i < 0x10000; ++i)
+ p->table[i] = -1; /* unassigned yet */
+
+ /* read the subtable */
+ length = get_ushort(); /* length of subtable */
+ (void) get_ushort(); /* skip the version number */
+ segCount = get_ushort() / 2;
+ (void) get_ushort(); /* skip searchRange */
+ (void) get_ushort(); /* skip entrySelector */
+ (void) get_ushort(); /* skip rangeShift */
+ seg_tab = xtalloc(segCount, seg_entry);
+ for (s = seg_tab; s - seg_tab < segCount; s++)
+ s->endCode = get_ushort();
+ (void) get_ushort(); /* skip reversedPad */
+ for (s = seg_tab; s - seg_tab < segCount; s++)
+ s->startCode = get_ushort();
+ for (s = seg_tab; s - seg_tab < segCount; s++)
+ s->idDelta = get_ushort();
+ for (s = seg_tab; s - seg_tab < segCount; s++)
+ s->idRangeOffset = get_ushort();
+ length -= 8 * TTF_USHORT_SIZE + 4 * segCount * TTF_USHORT_SIZE;
+ n = length / TTF_USHORT_SIZE; /* number of glyphID's */
+ glyphId = xtalloc(n, TTF_USHORT);
+ for (i = 0; i < n; i++)
+ glyphId[i] = get_ushort();
+ for (s = seg_tab; s - seg_tab < segCount; s++) {
+ for (i = s->startCode; i <= s->endCode; i++) {
+ if (i == 0xFFFF)
+ break;
+ if (s->idRangeOffset != 0xFFFF) {
+ if (s->idRangeOffset == 0)
+ index = (s->idDelta + i) & 0xFFFF;
+ else {
+ k = (i - s->startCode) + s->idRangeOffset / 2 +
+ (s - seg_tab) - segCount;
+ assert(k >= 0 && k < n);
+ index = glyphId[k];
+ if (index != 0)
+ index = (index + s->idDelta) & 0xFFFF;
+ }
+ if (index >= glyphs_count)
+ pdftex_fail("cmap: glyph index %li out of range [0..%i)",
+ index, glyphs_count);
+ if (p->table[i] != -1)
+ pdftex_warn
+ ("cmap: multiple glyphs are mapped to unicode %.4lX, "
+ "only %li will be used (glyph %li being ignored)", i,
+ p->table[i], index);
+ else
+ p->table[i] = index;
+ }
+ }
+ }
+ xfree(seg_tab);
+ xfree(glyphId);
+ aa = avl_probe(ttf_cmap_tree, p);
+ assert(aa != NULL);
+ return p;
+}
+
+static void ttf_read_font(void)
+{
+ ttf_read_tabdir();
+ if (ttf_name_lookup("PCLT", false) == NULL)
+ new_ntabs--;
+ if (ttf_name_lookup("fpgm", false) == NULL)
+ new_ntabs--;
+ if (ttf_name_lookup("cvt ", false) == NULL)
+ new_ntabs--;
+ if (ttf_name_lookup("prep", false) == NULL)
+ new_ntabs--;
+ ttf_read_mapx();
+ ttf_read_head();
+ ttf_read_hhea();
+ ttf_read_pclt();
+ ttf_read_hmtx();
+ ttf_read_post();
+ ttf_read_loca();
+ ttf_read_name();
+}
+
+static void ttf_reset_chksm(dirtab_entry * tab)
+{
+ checksum = 0;
+ tab_length = 0;
+ tmp_ulong = 0;
+ tab->offset = ttf_offset();
+ if (tab->offset % 4 != 0)
+ pdftex_warn("offset of `%4.4s' is not a multiple of 4", tab->tag);
+}
+
+
+static void ttf_set_chksm(dirtab_entry * tab)
+{
+ tab->length = ttf_offset() - tab->offset;
+ tab->checksum = ttf_getchksm();
+}
+
+static void ttf_copytab(const char *name)
+{
+ long i;
+ dirtab_entry *tab = ttf_seek_tab(name, 0);
+ ttf_reset_chksm(tab);
+ for (i = tab->length; i > 0; i--)
+ copy_char();
+ ttf_set_chksm(tab);
+}
+
+#define BYTE_ENCODING_LENGTH \
+ ((256)*TTF_BYTE_SIZE + 3*TTF_USHORT_SIZE)
+
+static void ttf_byte_encoding(void)
+{
+ ttfenc_entry *e;
+ (void) put_ushort(0); /* format number (0: byte encoding table) */
+ (void) put_ushort(BYTE_ENCODING_LENGTH); /* length of table */
+ (void) put_ushort(0); /* version number */
+ for (e = ttfenc_tab; e - ttfenc_tab < 256; e++)
+ if (e->newindex < 256) {
+ put_byte(e->newindex);
+ } else {
+ if (e->name != notdef)
+ pdftex_warn
+ ("glyph `%s' has been mapped to `%s' in `ttf_byte_encoding' cmap table",
+ e->name, notdef);
+ put_byte(0); /* notdef */
+ }
+}
+
+#define TRIMMED_TABLE_MAP_LENGTH (TTF_USHORT_SIZE*(5 + (256)))
+
+static void ttf_trimmed_table_map(void)
+{
+ ttfenc_entry *e;
+ (void) put_ushort(6); /* format number (6): trimmed table mapping */
+ (void) put_ushort(TRIMMED_TABLE_MAP_LENGTH);
+ (void) put_ushort(0); /* version number (0) */
+ (void) put_ushort(0); /* first character code */
+ (void) put_ushort(256); /* number of character code in table */
+ for (e = ttfenc_tab; e - ttfenc_tab < 256; e++)
+ (void) put_ushort(e->newindex);
+}
+
+#define SEG_MAP_DELTA_LENGTH ((16 + (256))*TTF_USHORT_SIZE)
+
+static void ttf_seg_map_delta(void)
+{
+ ttfenc_entry *e;
+ (void) put_ushort(4); /* format number (4: segment mapping to delta values) */
+ (void) put_ushort(SEG_MAP_DELTA_LENGTH);
+ (void) put_ushort(0); /* version number */
+ (void) put_ushort(4); /* 2*segCount */
+ (void) put_ushort(4); /* searchRange */
+ (void) put_ushort(1); /* entrySelector */
+ (void) put_ushort(0); /* rangeShift */
+ (void) put_ushort(0xF0FF); /* endCount[0] */
+ (void) put_ushort(0xFFFF); /* endCount[1] */
+ (void) put_ushort(0); /* reversedPad */
+ (void) put_ushort(0xF000); /* startCount[0] */
+ (void) put_ushort(0xFFFF); /* startCount[1] */
+ (void) put_ushort(0); /* idDelta[0] */
+ (void) put_ushort(1); /* idDelta[1] */
+ (void) put_ushort(2 * TTF_USHORT_SIZE); /* idRangeOffset[0] */
+ (void) put_ushort(0); /* idRangeOffset[1] */
+ for (e = ttfenc_tab; e - ttfenc_tab < 256; e++)
+ (void) put_ushort(e->newindex);
+}
+
+#define CMAP_ENTRY_LENGTH (2*TTF_USHORT_SIZE + TTF_ULONG_SIZE)
+
+static void ttf_select_cmap(void)
+{
+ assert(sizeof(new_cmap_tab) <= NEW_CMAP_SIZE * sizeof(cmap_entry));
+ new_cmap_tab[0].platform_id = 1; /* Macintosh */
+ new_cmap_tab[0].encoding_id = 0; /* Symbol; ignore code page */
+ new_cmap_tab[0].format = new_glyphs_count < 256 ? 0 /* byte encoding */
+ : 6; /* trimmed table mapping */
+ new_cmap_tab[1].platform_id = 3; /* Microsoft */
+ new_cmap_tab[1].encoding_id = 0; /* Symbol; ignore code page */
+ new_cmap_tab[1].format = 4; /* segment mapping to delta */
+}
+
+static void ttf_write_cmap(void)
+{
+ cmap_entry *ce;
+ long offset;
+ dirtab_entry *tab = ttf_name_lookup("cmap", true);
+ ttf_select_cmap();
+ ttf_reset_chksm(tab);
+ (void) put_ushort(0); /* table version number (0) */
+ (void) put_ushort(NEW_CMAP_SIZE); /* number of encoding tables */
+ offset = 2 * TTF_USHORT_SIZE + NEW_CMAP_SIZE * CMAP_ENTRY_LENGTH;
+ for (ce = new_cmap_tab; ce - new_cmap_tab < NEW_CMAP_SIZE; ce++) {
+ ce->offset = offset;
+ switch (ce->format) {
+ case 0:
+ offset += BYTE_ENCODING_LENGTH;
+ break;
+ case 4:
+ offset += SEG_MAP_DELTA_LENGTH;
+ break;
+ case 6:
+ offset += TRIMMED_TABLE_MAP_LENGTH;
+ break;
+ default:
+ pdftex_fail("invalid format (it should not have happened)");
+ }
+ (void) put_ushort(ce->platform_id);
+ (void) put_ushort(ce->encoding_id);
+ put_ulong(ce->offset);
+ }
+ for (ce = new_cmap_tab; ce - new_cmap_tab < NEW_CMAP_SIZE; ce++) {
+ switch (ce->format) {
+ case 0:
+ ttf_byte_encoding();
+ break;
+ case 4:
+ ttf_seg_map_delta();
+ break;
+ case 6:
+ ttf_trimmed_table_map();
+ break;
+ }
+ }
+ ttf_set_chksm(tab);
+}
+
+static int prepend_subset_tags(int index, char *p)
+{
+ boolean is_unicode;
+ int i;
+ assert(index >= 0 && index < name_record_num && fd_cur->subset_tag != NULL);
+ is_unicode = (name_tab[index].platform_id == 3);
+ if (is_unicode) {
+ for (i = 0; i < 6; ++i) {
+ *p++ = 0;
+ *p++ = fd_cur->subset_tag[i];
+ }
+ *p++ = 0;
+ *p++ = '+';
+ return 14;
+ } else {
+ strncpy(p, fd_cur->subset_tag, 6);
+ p += 6;
+ *p++ = '+';
+ return 7;
+ }
+}
+
+
+static void ttf_write_name(void)
+{
+ int i, l;
+ char *p;
+ int new_name_buf_size;
+ char *new_name_buf;
+ name_record *n;
+ dirtab_entry *tab = ttf_name_lookup("name", true);
+ if (is_subsetted(fd_cur->fm)) {
+ l = 0;
+ for (i = 0; i < name_record_num; i++)
+ l += name_tab[i].length + 14; /* maximum lengh of new stogare area */
+ new_name_buf = xtalloc(l, char);
+ /* additional space for subset tags */
+ p = new_name_buf;
+ for (i = 0; i < name_record_num; i++) {
+ n = name_tab + i;
+ n->new_offset = p - new_name_buf;
+ if ((n->name_id == 1 || n->name_id == 3 ||
+ n->name_id == 4 || n->name_id == 6) &&
+ ((n->platform_id == 1 && n->encoding_id == 0) ||
+ (n->platform_id == 3 && n->encoding_id == 0) ||
+ (n->platform_id == 3 && n->encoding_id == 1))) {
+ l = prepend_subset_tags(i, p);
+ p += l;
+ } else
+ l = 0;
+ memcpy(p, name_buf + n->offset, n->length);
+ p += n->length;
+ n->new_length = n->length + l;
+ }
+ new_name_buf_size = p - new_name_buf;
+ } else {
+ new_name_buf = name_buf;
+ new_name_buf_size = name_buf_size;
+ }
+ ttf_reset_chksm(tab);
+ (void) put_ushort(0); /* Format selector */
+ (void) put_ushort(name_record_num);
+ (void) put_ushort(3 * TTF_USHORT_SIZE +
+ name_record_num * 6 * TTF_USHORT_SIZE);
+ for (i = 0; i < name_record_num; i++) {
+ (void) put_ushort(name_tab[i].platform_id);
+ (void) put_ushort(name_tab[i].encoding_id);
+ (void) put_ushort(name_tab[i].language_id);
+ (void) put_ushort(name_tab[i].name_id);
+ (void) put_ushort(name_tab[i].new_length);
+ (void) put_ushort(name_tab[i].new_offset);
+ }
+ for (p = new_name_buf; p - new_name_buf < new_name_buf_size; p++)
+ put_char(*p);
+ ttf_set_chksm(tab);
+ if (new_name_buf != name_buf)
+ xfree(new_name_buf);
+}
+
+static void ttf_write_dirtab(void)
+{
+ dirtab_entry *tab;
+ TTF_ULONG i, k;
+ char *p;
+ const uint32_t save_offset = ttf_offset();
+ ttf_seek_outbuf(TABDIR_OFF);
+ if (is_subsetted(fd_cur->fm)) {
+ for (i = 0; i < DEFAULT_NTABS; i++) {
+ tab = ttf_name_lookup(newtabnames[i], false);
+ if (tab == NULL)
+ continue;
+ for (k = 0; k < 4; k++)
+ put_char(tab->tag[k]);
+ put_ulong(tab->checksum);
+ put_ulong(tab->offset);
+ put_ulong(tab->length);
+ }
+ } else {
+ for (tab = dir_tab; tab - dir_tab < ntabs; tab++) {
+ for (k = 0; k < 4; k++)
+ put_char(tab->tag[k]);
+ put_ulong(tab->checksum);
+ put_ulong(tab->offset);
+ put_ulong(tab->length);
+ }
+ }
+ /* adjust checkSumAdjustment */
+ tmp_ulong = 0;
+ checksum = 0;
+ for (p = fb_array, i = 0; i < save_offset;) {
+ tmp_ulong = (tmp_ulong << 8) + *p++;
+ i++;
+ if (i % 4 == 0) {
+ checksum += tmp_ulong;
+ tmp_ulong = 0;
+ }
+ }
+ if (i % 4 != 0) {
+ pdftex_warn("font length is not a multiple of 4 (%d)", i);
+ checksum <<= 8 * (4 - i % 4);
+ }
+ k = 0xB1B0AFBA - checksum;
+ ttf_seek_outbuf(checkSumAdjustment_offset);
+ put_ulong(k);
+ ttf_seek_outbuf(save_offset);
+}
+
+static void ttf_write_glyf(void)
+{
+ long *id, k;
+ TTF_USHORT idx;
+ TTF_USHORT flags;
+ dirtab_entry *tab = ttf_name_lookup("glyf", true);
+ const long glyf_offset = tab->offset;
+ const long new_glyf_offset = ttf_offset();
+ ttf_reset_chksm(tab);
+ for (id = glyph_index; id - glyph_index < new_glyphs_count; id++) {
+ glyph_tab[*id].newoffset = ttf_offset() - new_glyf_offset;
+ if (glyph_tab[*id].offset != glyph_tab[*id + 1].offset) {
+ ttf_seek_off(glyf_offset + glyph_tab[*id].offset);
+ k = copy_short();
+ ttf_ncopy(4 * TTF_FWORD_SIZE);
+ if (k < 0) {
+ do {
+ flags = copy_ushort();
+ idx = get_ushort();
+ if (glyph_tab[idx].newindex < 0) {
+ glyph_tab[idx].newindex = new_glyphs_count;
+ glyph_index[new_glyphs_count++] = idx;
+ /*
+ N.B.: Here we change `new_glyphs_count',
+ which appears in the condition of the `for' loop
+ */
+ }
+ (void) put_ushort(glyph_tab[idx].newindex);
+ if (flags & ARG_1_AND_2_ARE_WORDS)
+ ttf_ncopy(2 * TTF_SHORT_SIZE);
+ else
+ ttf_ncopy(TTF_USHORT_SIZE);
+ if (flags & WE_HAVE_A_SCALE)
+ ttf_ncopy(TTF_F2DOT14_SIZE);
+ else if (flags & WE_HAVE_AN_X_AND_Y_SCALE)
+ ttf_ncopy(2 * TTF_F2DOT14_SIZE);
+ else if (flags & WE_HAVE_A_TWO_BY_TWO)
+ ttf_ncopy(4 * TTF_F2DOT14_SIZE);
+ } while (flags & MORE_COMPONENTS);
+ if (flags & WE_HAVE_INSTRUCTIONS)
+ ttf_ncopy(copy_ushort());
+ } else
+ ttf_ncopy(glyph_tab[*id + 1].offset - glyph_tab[*id].offset -
+ TTF_USHORT_SIZE - 4 * TTF_FWORD_SIZE);
+ }
+ }
+ last_glyf_offset = ttf_offset() - new_glyf_offset;
+ ttf_set_chksm(tab);
+}
+
+static void ttf_reindex_glyphs(void)
+{
+ ttfenc_entry *e;
+ glyph_entry *glyph;
+ int index;
+ int n;
+ long *t;
+ ttf_cmap_entry *cmap = NULL;
+ boolean cmap_not_found = false;
+
+ /*
+ * reindexing glyphs: we append index of used glyphs to `glyph_index'
+ * while going through `ttfenc_tab'. After appending a new entry to
+ * `glyph_index' we set field `newindex' of corresponding entries in both
+ * `glyph_tab' and `ttfenc_tab' to the newly created index
+ */
+ for (e = ttfenc_tab; e - ttfenc_tab < 256; e++) {
+ e->newindex = 0; /* index of ".notdef" glyph */
+
+ /* handle case of subfonts first */
+ if (is_subfont(fd_cur->fm)) {
+ if (e->code == -1)
+ continue;
+ assert(fd_cur->fm->pid != -1 && fd_cur->fm->eid != -1);
+ if (cmap == NULL && !cmap_not_found) {
+ cmap =
+ ttf_read_cmap(fd_cur->fm->ff_name, fd_cur->fm->pid,
+ fd_cur->fm->eid, true);
+ if (cmap == NULL)
+ cmap_not_found = true;
+ }
+ if (cmap == NULL)
+ continue;
+ t = cmap->table;
+ assert(t != NULL && e->code < 0x10000);
+ if (t[e->code] < 0) {
+ pdftex_warn
+ ("subfont %s: wrong mapping: character %li --> 0x%4.4lX --> .notdef",
+ fd_cur->fm->tfm_name, (long) (e - ttfenc_tab), e->code);
+ continue;
+ }
+ assert(t[e->code] >= 0 && t[e->code] < glyphs_count); /* t has been read from ttf */
+ glyph = glyph_tab + t[e->code];
+ goto append_new_glyph;
+ }
+
+ /* handle case of reencoded fonts */
+ if (e->name == notdef)
+ continue;
+
+ /* look up by name first */
+ for (glyph = glyph_tab; glyph - glyph_tab < glyphs_count; glyph++)
+ if (glyph->name != notdef && strcmp(glyph->name, e->name) == 0)
+ goto append_new_glyph;
+
+ /* scan form `uniABCD' */
+ n = -1;
+ sscanf(e->name, GLYPH_PREFIX_UNICODE "%X%n", &index, &n);
+ if (n == strlen(e->name)) {
+ if (cmap == NULL && !cmap_not_found) {
+ /* need to read the unicode mapping, ie (pid,eid) = (3,1) or (0,3) */
+ cmap = ttf_read_cmap(fd_cur->fm->ff_name, 3, 1, false);
+ if (cmap == NULL)
+ cmap = ttf_read_cmap(fd_cur->fm->ff_name, 0, 3, false);
+ if (cmap == NULL) {
+ pdftex_warn
+ ("no unicode mapping found, all `uniXXXX' names will be ignored");
+ cmap_not_found = true; /* once only */
+ }
+ }
+ if (cmap == NULL)
+ continue;
+ t = cmap->table;
+ assert(t != NULL);
+ if (t[index] != -1) {
+ if (t[index] >= glyphs_count) {
+ pdftex_warn
+ ("`%s' is mapped to index %li which is out of valid range [0..%i)",
+ e->name, t[index], glyphs_count);
+ continue;
+ }
+ glyph = glyph_tab + t[index];
+ goto append_new_glyph;
+ } else {
+ pdftex_warn("`unicode %s%.4X' is not mapped to any glyph",
+ GLYPH_PREFIX_UNICODE, index);
+ continue;
+ }
+ }
+
+ /* scan form `index123' */
+ n = -1;
+ sscanf(e->name, GLYPH_PREFIX_INDEX "%i%n", &index, &n);
+ if (n == strlen(e->name)) {
+ if (index >= glyphs_count) {
+ pdftex_warn("`%s' out of valid range [0..%i)",
+ e->name, glyphs_count);
+ continue;
+ }
+ glyph = glyph_tab + index;
+ goto append_new_glyph;
+ }
+
+ /* not found */
+ pdftex_warn("glyph `%s' not found", e->name);
+ continue;
+
+ append_new_glyph:
+ assert(glyph > glyph_tab && glyph - glyph_tab < glyphs_count);
+ if (glyph->newindex < 0) {
+ glyph_index[new_glyphs_count] = glyph - glyph_tab;
+ glyph->newindex = new_glyphs_count;
+ new_glyphs_count++;
+ }
+ e->newindex = glyph->newindex;
+ }
+}
+
+static void ttf_write_head(void)
+{
+ dirtab_entry *tab;
+ tab = ttf_seek_tab("head", 0);
+ ttf_reset_chksm(tab);
+ ttf_ncopy(2 * TTF_FIXED_SIZE);
+ checkSumAdjustment_offset = ttf_offset();
+ put_ulong(0);
+ ttf_skip(TTF_ULONG_SIZE); /* skip checkSumAdjustment */
+ ttf_ncopy(TTF_ULONG_SIZE + 2 * TTF_USHORT_SIZE + 16 +
+ 4 * TTF_FWORD_SIZE + 2 * TTF_USHORT_SIZE + TTF_SHORT_SIZE);
+ if (is_subsetted(fd_cur->fm)) {
+ (void) put_short(loca_format);
+ (void) put_short(0);
+ } else
+ ttf_ncopy(2 * TTF_SHORT_SIZE);
+ ttf_set_chksm(tab);
+}
+
+static void ttf_write_hhea(void)
+{
+ dirtab_entry *tab;
+ tab = ttf_seek_tab("hhea", 0);
+ ttf_reset_chksm(tab);
+ ttf_ncopy(TTF_FIXED_SIZE + 3 * TTF_FWORD_SIZE + TTF_UFWORD_SIZE +
+ 3 * TTF_FWORD_SIZE + 8 * TTF_SHORT_SIZE);
+ (void) put_ushort(new_glyphs_count);
+ ttf_set_chksm(tab);
+}
+
+static void ttf_write_htmx(void)
+{
+ long *id;
+ dirtab_entry *tab = ttf_seek_tab("hmtx", 0);
+ ttf_reset_chksm(tab);
+ for (id = glyph_index; id - glyph_index < new_glyphs_count; id++) {
+ put_ufword(glyph_tab[*id].advWidth);
+ put_ufword(glyph_tab[*id].lsb);
+ }
+ ttf_set_chksm(tab);
+}
+
+static void ttf_write_loca(void)
+{
+ long *id;
+ dirtab_entry *tab = ttf_seek_tab("loca", 0);
+ ttf_reset_chksm(tab);
+ loca_format = 0;
+ if (last_glyf_offset >= 0x00020000 || (last_glyf_offset & 1))
+ loca_format = 1;
+ else
+ for (id = glyph_index; id - glyph_index < new_glyphs_count; id++)
+ if (glyph_tab[*id].newoffset & 1) {
+ loca_format = 1;
+ break;
+ }
+ if (loca_format != 0) {
+ for (id = glyph_index; id - glyph_index < new_glyphs_count; id++)
+ put_ulong(glyph_tab[*id].newoffset);
+ put_ulong(last_glyf_offset);
+ } else {
+ for (id = glyph_index; id - glyph_index < new_glyphs_count; id++)
+ (void) put_ushort(glyph_tab[*id].newoffset / 2);
+ (void) put_ushort(last_glyf_offset / 2);
+ }
+ ttf_set_chksm(tab);
+}
+
+static void ttf_write_mapx(void)
+{
+ dirtab_entry *tab = ttf_seek_tab("maxp", TTF_FIXED_SIZE + TTF_USHORT_SIZE);
+ ttf_reset_chksm(tab);
+ put_fixed(0x00010000);
+ (void) put_ushort(new_glyphs_count);
+ ttf_ncopy(13 * TTF_USHORT_SIZE);
+ ttf_set_chksm(tab);
+}
+
+static void ttf_write_OS2(void)
+{
+ dirtab_entry *tab = ttf_seek_tab("OS/2", 0);
+ TTF_USHORT version;
+ ttf_reset_chksm(tab);
+ version = get_ushort();
+ if (version > 3)
+ pdftex_fail("unknown version of OS/2 table (%.4X)", version);
+ (void) put_ushort(0x0001); /* fix version to 1 */
+ ttf_ncopy(2 * TTF_USHORT_SIZE + 13 * TTF_SHORT_SIZE + 10 * TTF_BYTE_SIZE);
+ ttf_skip(4 * TTF_ULONG_SIZE); /* ulUnicodeRange 1--4 */
+ put_ulong(0x00000003); /* Basic Latin + Latin-1 Supplement (0x0000--0x00FF) */
+ put_ulong(0x10000000); /* Private Use (0xE000--0xF8FF) */
+ put_ulong(0x00000000);
+ put_ulong(0x00000000);
+ ttf_ncopy(4 * TTF_CHAR_SIZE + TTF_USHORT_SIZE); /* achVendID + fsSelection */
+ ttf_skip(2 * TTF_USHORT_SIZE);
+ (void) put_ushort(0x0000); /* usFirstCharIndex */
+ (void) put_ushort(0xF0FF); /* usLastCharIndex */
+ ttf_ncopy(5 * TTF_USHORT_SIZE);
+ /* for version 0 the OS/2 table ends here, the rest is for version 1 */
+ put_ulong(0x80000000); /* Symbol Character Set---don't use any code page */
+ put_ulong(0x00000000);
+ ttf_set_chksm(tab);
+}
+
+static boolean unsafe_name(const char *s)
+{
+ const char **p;
+ for (p = ambiguous_names; *p != NULL; p++)
+ if (strcmp(s, *p) == 0)
+ return true;
+ return false;
+}
+
+static void ttf_write_post(void)
+{
+ dirtab_entry *tab = ttf_seek_tab("post", TTF_FIXED_SIZE);
+ glyph_entry *glyph;
+ const char *s;
+ long *id;
+ int l;
+ ttf_reset_chksm(tab);
+ if (!fd_cur->write_ttf_glyph_names || post_format == 0x00030000) {
+ put_fixed(0x00030000);
+ ttf_ncopy(TTF_FIXED_SIZE + 2 * TTF_FWORD_SIZE + 5 * TTF_ULONG_SIZE);
+ } else {
+ put_fixed(0x00020000);
+ ttf_ncopy(TTF_FIXED_SIZE + 2 * TTF_FWORD_SIZE + 5 * TTF_ULONG_SIZE);
+ (void) put_ushort(new_glyphs_count);
+ k = 0;
+ for (id = glyph_index; id - glyph_index < new_glyphs_count; id++) {
+ glyph = glyph_tab + *id;
+ if (glyph->name_index >= NMACGLYPHS || unsafe_name(glyph->name))
+ glyph->name_index = NMACGLYPHS + k++;
+ (void) put_ushort(glyph->name_index);
+ }
+ for (id = glyph_index; id - glyph_index < new_glyphs_count; id++) {
+ glyph = glyph_tab + *id;
+ if (glyph->name_index >= NMACGLYPHS) {
+ s = glyph->name;
+ l = strlen(s);
+ put_byte(l);
+ while (l-- > 0)
+ put_char(*s++);
+ }
+ }
+ }
+ ttf_set_chksm(tab);
+}
+
+static void ttf_init_font(int n)
+{
+ int i, k;
+ for (i = 1, k = 0; i <= n; i <<= 1, k++);
+ put_fixed(0x00010000); /* font version */
+ (void) put_ushort(n); /* number of tables */
+ (void) put_ushort(i << 3); /* search range */
+ (void) put_ushort(k - 1); /* entry selector */
+ (void) put_ushort((n << 4) - (i << 3)); /* range shift */
+ ttf_seek_outbuf(TABDIR_OFF + n * 4 * TTF_ULONG_SIZE);
+}
+
+static void ttf_subset_font(void)
+{
+ ttf_init_font(new_ntabs);
+ if (ttf_name_lookup("PCLT", false) != NULL)
+ ttf_copytab("PCLT");
+ if (ttf_name_lookup("fpgm", false) != NULL)
+ ttf_copytab("fpgm");
+ if (ttf_name_lookup("cvt ", false) != NULL)
+ ttf_copytab("cvt ");
+ if (ttf_name_lookup("prep", false) != NULL)
+ ttf_copytab("prep");
+ ttf_reindex_glyphs();
+ ttf_write_glyf();
+ ttf_write_loca();
+ ttf_write_OS2();
+ ttf_write_head();
+ ttf_write_hhea();
+ ttf_write_htmx();
+ ttf_write_mapx();
+ ttf_write_name();
+ ttf_write_post();
+ ttf_write_cmap();
+ ttf_write_dirtab();
+}
+
+static void ttf_copy_font(void)
+{
+ dirtab_entry *tab;
+ ttf_init_font(ntabs);
+ for (tab = dir_tab; tab - dir_tab < ntabs; tab++) {
+ if (strncmp(tab->tag, "head", 4) == 0)
+ ttf_write_head();
+ else
+ ttf_copytab(tab->tag);
+ }
+ ttf_write_dirtab();
+}
+
+void writettf(fd_entry * fd)
+{
+ fd_cur = fd; /* fd_cur is global inside writettf.c */
+ assert(fd_cur->fm != NULL);
+ assert(is_truetype(fd_cur->fm));
+ assert(is_included(fd_cur->fm));
+
+ set_cur_file_name(fd_cur->fm->ff_name);
+ if (is_subsetted(fd_cur->fm) && (fd_cur->fe == NULL)
+ && !is_subfont(fd_cur->fm)) {
+ pdftex_fail("Subset TrueType must be a reencoded or a subfont");
+ }
+ if (!ttf_open()) {
+ pdftex_fail("cannot open TrueType font file for reading");
+ }
+ cur_file_name = (char *) nameoffile + 1;
+
+ /* skip ttc header, prepare for reading first font */
+ if (strcasecmp(strchr(cur_file_name, 0) - 4, ".ttc") == 0) {
+ if (get_ulong() != 0x74746366 /* ttcf */) {
+ xfseek(INFILE, 0, SEEK_SET, cur_file_name);
+ } else {
+ ttf_skip(TTF_FIXED_SIZE); /* ignore the version */
+ ttf_skip(TTF_ULONG_SIZE); /* ignore the numFonts */
+
+ /* goto first font */
+ xfseek(INFILE, get_ulong(), SEEK_SET, cur_file_name);
+ }
+ }
+
+ if (is_subsetted(fd_cur->fm))
+ tex_printf("<%s", cur_file_name);
+ else
+ tex_printf("<<%s", cur_file_name);
+ fd_cur->ff_found = true;
+ new_glyphs_count = 2;
+ new_ntabs = DEFAULT_NTABS;
+ dir_tab = NULL;
+ glyph_tab = NULL;
+ glyph_index = NULL;
+ glyph_name_buf = NULL;
+ name_tab = NULL;
+ name_buf = NULL;
+ ttf_read_font();
+
+ pdfsaveoffset = pdfoffset();
+ pdfflush();
+ if (is_subsetted(fd_cur->fm)) {
+ ttf_copy_encoding();
+ ttf_subset_font();
+ } else
+ ttf_copy_font();
+ ttf_length = ttf_offset();
+
+ xfree(dir_tab);
+ xfree(glyph_tab);
+ xfree(glyph_index);
+ xfree(glyph_name_buf);
+ xfree(name_tab);
+ xfree(name_buf);
+ ttf_close();
+ if (is_subsetted(fd_cur->fm))
+ tex_printf(">");
+ else
+ tex_printf(">>");
+ cur_file_name = NULL;
+}
+
+void writeotf(fd_entry * fd)
+{
+ dirtab_entry *tab;
+ long i;
+
+ fd_cur = fd; /* fd_cur is global inside writettf.c */
+ assert(fd_cur->fm != NULL);
+ assert(is_opentype(fd_cur->fm));
+ assert(is_included(fd_cur->fm));
+
+ set_cur_file_name(fd_cur->fm->ff_name);
+ if (is_subsetted(fd_cur->fm))
+ pdftex_fail("OTF fonts must be included entirely");
+ if (!open_input(&ttf_file, kpse_opentype_format, FOPEN_RBIN_MODE)) {
+ pdftex_fail("cannot open OpenType font file for reading");
+ }
+ cur_file_name = (char *) nameoffile + 1;
+ tex_printf("<<%s", cur_file_name);
+ fd_cur->ff_found = true;
+ dir_tab = NULL;
+ glyph_tab = NULL;
+ ttf_read_tabdir();
+ /* read font parameters */
+ if (ttf_name_lookup("head", false) != NULL)
+ ttf_read_head();
+ if (ttf_name_lookup("hhea", false) != NULL)
+ ttf_read_hhea();
+ if (ttf_name_lookup("PCLT", false) != NULL)
+ ttf_read_pclt();
+ if (ttf_name_lookup("post", false) != NULL)
+ ttf_read_post();
+ /* copy font file */
+ tab = ttf_seek_tab("CFF ", 0);
+ for (i = tab->length; i > 0; i--)
+ copy_char();
+ xfree(dir_tab);
+ ttf_close();
+ tex_printf(">>");
+ cur_file_name = NULL;
+}
+
+/*
+ To calculate the checkSum for the 'head' table which itself includes the
+ checkSumAdjustment entry for the entire font, do the following:
+
+ * Set the checkSumAdjustment to 0.
+ * Calculate the checksum for all the tables including the 'head' table
+ and enter that value into the table directory.
+ * Calculate the checksum for the entire font.
+ * Subtract that value from the hex value B1B0AFBA.
+ * Store the result in checkSumAdjustment.
+
+ The checkSum for the 'head table which includes the checkSumAdjustment
+ entry for the entire font is now incorrect. That is not a problem. Do not
+ change it. An application attempting to verify that the 'head' table has
+ not changed should calculate the checkSum for that table by not including
+ the checkSumAdjustment value, and compare the result with the entry in the
+ table directory.
+
+ The table directory also includes the offset of the associated tagged
+ table from the beginning of the font file and the length of that table.
+ */