diff options
author | Denis Bitouzé <dbitouze@wanadoo.fr> | 2021-02-25 18:23:07 +0000 |
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committer | Denis Bitouzé <dbitouze@wanadoo.fr> | 2021-02-25 18:23:07 +0000 |
commit | c6101f91d071883b48b1b4b51e5eba0f36d9a78d (patch) | |
tree | 1bf7f5a881d7a4f5c5bf59d0b2821943dd822372 /Build/source/texk/web2c/luatexdir/font/sfnt.c | |
parent | 07ee7222e389b0777456b427a55c22d0e6ffd267 (diff) |
French translation for tlmgr updated
git-svn-id: svn://tug.org/texlive/trunk@57912 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/web2c/luatexdir/font/sfnt.c')
-rw-r--r-- | Build/source/texk/web2c/luatexdir/font/sfnt.c | 393 |
1 files changed, 0 insertions, 393 deletions
diff --git a/Build/source/texk/web2c/luatexdir/font/sfnt.c b/Build/source/texk/web2c/luatexdir/font/sfnt.c deleted file mode 100644 index a58bda09236..00000000000 --- a/Build/source/texk/web2c/luatexdir/font/sfnt.c +++ /dev/null @@ -1,393 +0,0 @@ -/* - -Copyright 2002 by Jin-Hwan Cho and Shunsaku Hirata, -the dvipdfmx project team <dvipdfmx@@project.ktug.or.kr> -Copyright 2006-2008 Taco Hoekwater <taco@@luatex.org> - -This file is part of LuaTeX. - -LuaTeX 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. - -LuaTeX 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 Lesser General Public -License for more details. - -You should have received a copy of the GNU General Public License along -with LuaTeX; if not, see <http://www.gnu.org/licenses/>. - -*/ - -/*tex - - The code below is originally based on |dvipdfmx-0.13.2c|: - -*/ - -#include "ptexlib.h" - -#if HAVE_CONFIG_H -# include <w2c/config.h> -#endif - -#include <string.h> - -#include "font/sfnt.h" - -/*tex - - Types: - - \starttabulate[||||] - \NC \type {true} \NC 0x74727565 \NC (Mac) TrueType \NC \NR - \NC \type {typ1| \NC 0x74797031 \NC (Mac) PostScript font housed in a sfnt wrapper \NC \NR - \NC \NC 0x00010000 \NC TrueType (Win)/OpenType \NC \NR - \NC \type {OTTO} \NC \NC PostScript CFF font with OpenType wrapper \NC \NR - \NC \type {ttcf} \NC \NC TrueType Collection \NC \NR - \stoptabulate - -*/ - -#define SFNT_TRUETYPE 0x00010000UL -#define SFNT_MAC_TRUE 0x74727565UL -#define SFNT_OPENTYPE 0x00010000UL -#define SFNT_POSTSCRIPT 0x4f54544fUL -#define SFNT_TTC 0x74746366UL - -sfnt *sfnt_open(unsigned char *buff, int buflen) -{ - sfnt *sfont; - ULONG type; - sfont = xmalloc(sizeof(sfnt)); - sfont->loc = 0; - sfont->buffer = buff; - sfont->buflen = buflen; - type = sfnt_get_ulong(sfont); - if (type == SFNT_TRUETYPE || type == SFNT_MAC_TRUE) { - sfont->type = SFNT_TYPE_TRUETYPE; - } else if (type == SFNT_OPENTYPE) { - sfont->type = SFNT_TYPE_OPENTYPE; - } else if (type == SFNT_POSTSCRIPT) { - sfont->type = SFNT_TYPE_POSTSCRIPT; - } else if (type == SFNT_TTC) { - sfont->type = SFNT_TYPE_TTC; - } - sfont->loc = 0; - sfont->directory = NULL; - return sfont; -} - -static void release_directory(struct sfnt_table_directory *td) -{ - long i; - if (td) { - if (td->tables) { - for (i = 0; i < td->num_tables; i++) { - if (td->tables[i].data) - RELEASE(td->tables[i].data); - } - RELEASE(td->tables); - } - if (td->flags) - RELEASE(td->flags); - RELEASE(td); - } - return; -} - -void sfnt_close(sfnt * sfont) -{ - if (sfont) { - if (sfont->directory) - release_directory(sfont->directory); - RELEASE(sfont); - } - return; -} - -int put_big_endian(void *s, LONG q, int n) -{ - int i; - char *p; - p = (char *) s; - for (i = n - 1; i >= 0; i--) { - p[i] = (char) (q & 0xff); - q >>= 8; - } - return n; -} - -/*tex - - Convert four-byte number to big endianess in a machine independent way. - -*/ - -static void convert_tag(char *tag, unsigned long u_tag) -{ - int i; - for (i = 3; i >= 0; i--) { - tag[i] = (char) (u_tag % 256); - u_tag /= 256; - } - return; -} - -/*tex - - Computes the max power of $|2 <= n$: - -*/ - -static unsigned max2floor(unsigned n) -{ - int val = 1; - while (n > 1) { - n /= 2; - val *= 2; - } - return (unsigned) val; -} - -/*tex - - Computes the log2 of the max power of $2 <= n$ - -*/ - -static unsigned log2floor(unsigned n) -{ - unsigned val = 0; - while (n > 1) { - n /= 2; - val++; - } - return val; -} - -static ULONG sfnt_calc_checksum(void *data, ULONG length) -{ - ULONG chksum = 0; - BYTE *p, *endptr; - ULONG count = 0; - p = (BYTE *) data; - endptr = p + length; - while (p < endptr) { - chksum = chksum + (ULONG) (p[0] << (8 * (3 - count))); - count = ((count + 1) & 3); - p++; - } - return chksum; -} - -static int find_table_index(struct sfnt_table_directory *td, const char *tag) -{ - int idx; - if (!td) - return -1; - for (idx = 0; idx < td->num_tables; idx++) { - if (!memcmp(td->tables[idx].tag, tag, 4)) - return idx; - } - return -1; -} - -void sfnt_set_table(sfnt * sfont, const char *tag, void *data, ULONG length) -{ - struct sfnt_table_directory *td; - int idx; - td = sfont->directory; - idx = find_table_index(td, tag); - if (idx < 0) { - idx = td->num_tables; - td->num_tables++; - td->tables = RENEW(td->tables, td->num_tables, struct sfnt_table); - memcpy(td->tables[idx].tag, tag, 4); - } - td->tables[idx].check_sum = sfnt_calc_checksum(data, length); - td->tables[idx].offset = 0L; - td->tables[idx].length = length; - td->tables[idx].data = data; - return; -} - -ULONG sfnt_find_table_len(sfnt * sfont, const char *tag) -{ - ULONG length; - struct sfnt_table_directory *td; - int idx; - td = sfont->directory; - idx = find_table_index(td, tag); - if (idx < 0) - length = 0; - else { - length = td->tables[idx].length; - } - return length; -} - -ULONG sfnt_find_table_pos(sfnt * sfont, const char *tag) -{ - ULONG offset; - struct sfnt_table_directory *td; - int idx; - td = sfont->directory; - idx = find_table_index(td, tag); - if (idx < 0) - offset = 0; - else { - offset = td->tables[idx].offset; - } - return offset; -} - -ULONG sfnt_locate_table(sfnt * sfont, const char *tag) -{ - ULONG offset; - offset = sfnt_find_table_pos(sfont, tag); - if (offset == 0) { - formatted_error("ttf","%s table not found",tag); - } - sfnt_seek_set(sfont, (long) offset); - return offset; -} - -int sfnt_read_table_directory(sfnt * sfont, ULONG offset) -{ - struct sfnt_table_directory *td; - unsigned long i, u_tag; - if (sfont->directory) - release_directory(sfont->directory); - sfont->directory = td = NEW(1, struct sfnt_table_directory); - sfnt_seek_set(sfont, (long) offset); - td->version = sfnt_get_ulong(sfont); - td->num_tables = sfnt_get_ushort(sfont); - td->search_range = sfnt_get_ushort(sfont); - td->entry_selector = sfnt_get_ushort(sfont); - td->range_shift = sfnt_get_ushort(sfont); - td->flags = NEW(td->num_tables, char); - td->tables = NEW(td->num_tables, struct sfnt_table); - for (i = 0; i < td->num_tables; i++) { - u_tag = sfnt_get_ulong(sfont); - convert_tag(td->tables[i].tag, u_tag); - td->tables[i].check_sum = sfnt_get_ulong(sfont); - td->tables[i].offset = sfnt_get_ulong(sfont); - td->tables[i].length = sfnt_get_ulong(sfont); - td->tables[i].data = NULL; - td->flags[i] = 0; - } - td->num_kept_tables = 0; - return 0; -} - -int sfnt_require_table(sfnt * sfont, const char *tag, int must_exist) -{ - struct sfnt_table_directory *td; - int idx; - td = sfont->directory; - idx = find_table_index(td, tag); - if (idx < 0) { - if (must_exist) - return -1; - } else { - td->flags[idx] |= SFNT_TABLE_REQUIRED; - td->num_kept_tables++; - } - return 0; -} - -/*tex - - All tables begin on four byte boundries, and pad any remaining space between - tables with zeros. Entries in the Table Directory must be sorted in ascending - order by tag The head table contains checksum of the whole font file. To - compute: first set it to 0, sum the entire font as ULONG, then store - 0xB1B0AFBA - sum. - -*/ - -# include "font/luatexfont.h" -# undef MIN -# define MIN(a, b) (((a) < (b)) ? (a) : (b)) -# define STREAM_COMPRESS - -static unsigned char wbuf[1024], padbytes[4] = { 0, 0, 0, 0 }; - -pdf_obj *sfnt_create_FontFile_stream(sfnt * sfont) -{ - pdf_obj *stream; - struct sfnt_table_directory *td; - long offset, nb_read, length; - int i, sr; - char *p; - stream = pdf_new_stream(STREAM_COMPRESS); - td = sfont->directory; - p = (char *) wbuf; - p += sfnt_put_ulong(p, (LONG) td->version); - p += sfnt_put_ushort(p, td->num_kept_tables); - sr = (int) (max2floor(td->num_kept_tables) * 16); - p += sfnt_put_ushort(p, sr); - p += sfnt_put_ushort(p, log2floor(td->num_kept_tables)); - p += sfnt_put_ushort(p, td->num_kept_tables * 16 - sr); - pdf_add_stream(stream, wbuf, 12); - /*tex Compute start of actual tables (after headers). */ - offset = 12 + 16 * td->num_kept_tables; - for (i = 0; i < td->num_tables; i++) { - /*tex This table must exist in |FontFile|: */ - if (td->flags[i] & SFNT_TABLE_REQUIRED) { - if ((offset % 4) != 0) { - offset += 4 - (offset % 4); - } - p = (char *) wbuf; - memcpy(p, td->tables[i].tag, 4); - p += 4; - p += sfnt_put_ulong(p, (LONG) td->tables[i].check_sum); - p += sfnt_put_ulong(p, offset); - p += sfnt_put_ulong(p, (LONG) td->tables[i].length); - pdf_add_stream(stream, wbuf, 16); - offset = (long) (offset + (long) td->tables[i].length); - } - } - offset = 12 + 16 * td->num_kept_tables; - for (i = 0; i < td->num_tables; i++) { - if (td->flags[i] & SFNT_TABLE_REQUIRED) { - if ((offset % 4) != 0) { - length = 4 - (offset % 4); - pdf_add_stream(stream, padbytes, length); - offset += length; - } - if (!td->tables[i].data) { - if (!sfont->buffer) { - pdf_release_obj(stream); - normal_error("ttf","file not opened or already closed"); - return NULL; - } - length = (long) td->tables[i].length; - sfnt_seek_set(sfont, (long) td->tables[i].offset); - while (length > 0) { - nb_read = sfnt_read(wbuf, (int) MIN(length, 1024), sfont); - if (nb_read < 0) { - pdf_release_obj(stream); - normal_error("ttf","reading file failed"); - return NULL; - } else if (nb_read > 0) { - pdf_add_stream(stream, wbuf, nb_read); - } - length -= nb_read; - } - } else { - pdf_add_stream(stream, - (unsigned char *) td->tables[i].data, - (long) td->tables[i].length); - RELEASE(td->tables[i].data); - td->tables[i].data = NULL; - } - /*tex Set offset for next table. */ - offset = (long) (offset + (long) td->tables[i].length); - } - } - return stream; -} |