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Diffstat (limited to 'Build/source/texk/dvipdf-x/src/sfnt.c')
-rw-r--r--Build/source/texk/dvipdf-x/src/sfnt.c529
1 files changed, 0 insertions, 529 deletions
diff --git a/Build/source/texk/dvipdf-x/src/sfnt.c b/Build/source/texk/dvipdf-x/src/sfnt.c
deleted file mode 100644
index 47627b9f501..00000000000
--- a/Build/source/texk/dvipdf-x/src/sfnt.c
+++ /dev/null
@@ -1,529 +0,0 @@
-/*
-
- This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
-
- Copyright (C) 2002-2012 by Jin-Hwan Cho and Shunsaku Hirata,
- the dvipdfmx project team.
-
- This program 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.
-
- This program 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, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
-*/
-
-/* Based on dvipdfmx-0.13.2c */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <string.h>
-
-#include "system.h"
-
-#include "error.h"
-#include "mem.h"
-#include "mfileio.h"
-
-#include "sfnt.h"
-
-
-sfnt *
-sfnt_open (FILE *fp)
-{
- sfnt *sfont;
- ULONG type;
-
- ASSERT(fp);
-
- rewind(fp);
-
- sfont = NEW(1, sfnt);
-
- sfont->stream = fp;
-
-/*
- * type:
- * `true' (0x74727565): TrueType (Mac)
- * `typ1' (0x74797031) (Mac): PostScript font housed in a sfnt wrapper
- * 0x00010000: TrueType (Win)/OpenType
- * `OTTO': PostScript CFF font with OpenType wrapper
- * `ttcf': TrueType Collection
-*/
-#define SFNT_TRUETYPE 0x00010000UL
-#define SFNT_OPENTYPE 0x00010000UL
-#define SFNT_POSTSCRIPT 0x4f54544fUL
-#define SFNT_TTC 0x74746366UL
-
- type = sfnt_get_ulong(sfont);
-
- if (type == SFNT_TRUETYPE) {
- 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;
- }
-
- rewind(sfont->stream);
-
- sfont->directory = NULL;
- sfont->offset = 0UL;
-
- return sfont;
-}
-
-sfnt *
-dfont_open (FILE *fp, int index)
-{
- sfnt *sfont;
- ULONG rdata_pos, map_pos, tags_pos, types_pos, res_pos, tag;
- USHORT tags_num, types_num, i;
-
- ASSERT(fp);
-
- rewind(fp);
-
- sfont = NEW(1, sfnt);
-
- sfont->stream = fp;
-
- rdata_pos = sfnt_get_ulong(sfont);
- map_pos = sfnt_get_ulong(sfont);
- sfnt_seek_set(sfont, map_pos + 0x18);
- tags_pos = map_pos + sfnt_get_ushort(sfont);
- sfnt_seek_set(sfont, tags_pos);
- tags_num = sfnt_get_ushort(sfont);
-
- for (i = 0; i <= tags_num; i++) {
- tag = sfnt_get_ulong(sfont); /* tag name */
- types_num = sfnt_get_ushort(sfont); /* typefaces number */
- types_pos = tags_pos + sfnt_get_ushort(sfont); /* typefaces position */
- if (tag == 0x73666e74UL) /* "sfnt" */
- break;
- }
-
- if (i > tags_num) {
- RELEASE(sfont);
- return NULL;
- }
-
- sfnt_seek_set(sfont, types_pos);
- if (index > types_num) {
- ERROR("Invalid index %d for dfont.", index);
- }
-
- for (i = 0; i <= types_num; i++) {
- (void) sfnt_get_ushort(sfont); /* resource id */
- (void) sfnt_get_ushort(sfont); /* resource name position from name_list */
- res_pos = sfnt_get_ulong(sfont); /* resource flag (byte) + resource offset */
- sfnt_get_ulong(sfont); /* mbz */
- if (i == index) break;
- }
-
- rewind(sfont->stream);
-
- sfont->type = SFNT_TYPE_DFONT;
- sfont->directory = NULL;
- sfont->offset = (res_pos & 0x00ffffffUL) + rdata_pos + 4;
-
- 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;
-}
-
-/* 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;
-}
-
-/*
- * Computes the max power of 2 <= n
- */
-static unsigned
-max2floor (unsigned n)
-{
- int val = 1;
-
- while (n > 1) {
- n /= 2;
- val *= 2;
- }
-
- return val;
-}
-
-/*
- * 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;
- int count = 0;
-
- p = (BYTE *) data;
- endptr = p + length;
- while (p < endptr) {
- chksum += (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;
-
- ASSERT(sfont);
-
- 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;
-
- ASSERT(sfont && tag);
-
- 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;
-
- ASSERT(sfont && tag);
-
- 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;
-
- ASSERT(sfont && tag);
-
- offset = sfnt_find_table_pos(sfont, tag);
- if (offset == 0)
- ERROR("sfnt: table not found...");
-
- sfnt_seek_set(sfont, offset);
-
- return offset;
-}
-
-int
-sfnt_read_table_directory (sfnt *sfont, ULONG offset)
-{
- struct sfnt_table_directory *td;
- unsigned long i, u_tag;
-
- ASSERT(sfont && sfont->stream);
-
- sfnt_seek_set(sfont, offset);
-
- if (sfont->directory)
- release_directory(sfont->directory);
-
- sfont->directory = td = NEW (1, struct sfnt_table_directory);
-
- 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) + sfont->offset;
- td->tables[i].length = sfnt_get_ulong(sfont);
- td->tables[i].data = NULL;
-//fprintf(stderr, "[%4s:%x]", td->tables[i].tag, td->tables[i].offset);
-
- 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;
-
- ASSERT(sfont && sfont->directory);
-
- 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;
-}
-
-#include "pdfobj.h"
-
-/*
- * o All tables begin on four byte boundries, and pad any remaining space
- * between tables with zeros
- *
- * o Entries in the Table Directory must be sorted in ascending order by tag
- *
- * o 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.
- */
-
-static unsigned char wbuf[1024], padbytes[4] = {0, 0, 0, 0};
-
-pdf_obj *
-sfnt_create_FontFile_stream (sfnt *sfont)
-{
- pdf_obj *stream;
- pdf_obj *stream_dict;
- struct sfnt_table_directory *td;
- long offset, nb_read, length;
- int i, sr;
- char *p;
-
- ASSERT(sfont && sfont->directory);
-
- stream = pdf_new_stream(STREAM_COMPRESS);
-
- td = sfont->directory;
-
- /* Header */
- p = (char *) wbuf;
- p += sfnt_put_ulong (p, td->version);
- p += sfnt_put_ushort(p, td->num_kept_tables);
- sr = 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);
-
- /*
- * Compute start of actual tables (after headers).
- */
- offset = 12 + 16 * td->num_kept_tables;
- for (i = 0; i < td->num_tables; i++) {
- /* 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, td->tables[i].check_sum);
- p += sfnt_put_ulong(p, offset);
- p += sfnt_put_ulong(p, td->tables[i].length);
- pdf_add_stream(stream, wbuf, 16);
-
- offset += 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->stream) {
- pdf_release_obj(stream);
- ERROR("Font file not opened or already closed...");
- return NULL;
- }
-
- length = td->tables[i].length;
- sfnt_seek_set(sfont, td->tables[i].offset);
- while (length > 0) {
- nb_read = sfnt_read(wbuf, MIN(length, 1024), sfont);
- if (nb_read < 0) {
- pdf_release_obj(stream);
- ERROR("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,
- td->tables[i].data, td->tables[i].length);
- RELEASE(td->tables[i].data);
- td->tables[i].data = NULL;
- }
- /* Set offset for next table */
- offset += td->tables[i].length;
- }
- }
-
- stream_dict = pdf_stream_dict(stream);
- pdf_add_dict(stream_dict,
- pdf_new_name("Length1"),
- pdf_new_number(offset));
-
- return stream;
-}
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