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-rw-r--r--Build/source/texk/dvipdfm-x/dvi.c2884
1 files changed, 0 insertions, 2884 deletions
diff --git a/Build/source/texk/dvipdfm-x/dvi.c b/Build/source/texk/dvipdfm-x/dvi.c
deleted file mode 100644
index 473c52e8c3c..00000000000
--- a/Build/source/texk/dvipdfm-x/dvi.c
+++ /dev/null
@@ -1,2884 +0,0 @@
-/* This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
-
- Copyright (C) 2002-2021 by Jin-Hwan Cho and Shunsaku Hirata,
- the dvipdfmx project team.
-
- Copyright (C) 2012-2015 by Khaled Hosny <khaledhosny@eglug.org>
-
- Copyright (C) 1998, 1999 by Mark A. Wicks <mwicks@kettering.edu>
-
- 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.
-*/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <sys/types.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <string.h>
-
-#ifdef WIN32
-#include <fcntl.h>
-#include <io.h>
-#endif
-
-#include "system.h"
-#include "mem.h"
-#include "error.h"
-#include "mfileio.h"
-#include "numbers.h"
-#include "dpxconf.h"
-#include "dpxutil.h"
-
-#include "pdfdev.h"
-#include "pdfdoc.h"
-#include "pdfparse.h"
-#include "pdfresource.h"
-#include "pdfdraw.h"
-
-#include "fontmap.h"
-
-#include "dvicodes.h"
-#include "tfm.h"
-#include "vf.h"
-#include "subfont.h"
-
-#include "spc_util.h"
-#include "specials.h"
-
-#include "dvi.h"
-#include "dvipdfmx.h"
-
-#include "dpxfile.h"
-#include "pdfximage.h"
-#include "tt_aux.h"
-#include "tt_table.h"
-#include "t1_load.h"
-#include "t1_char.h"
-#include "cff_dict.h"
-
-#define DVI_STACK_DEPTH_MAX 256u
-#define TEX_FONTS_ALLOC_SIZE 16u
-#define VF_NESTING_MAX 16u
-
-/* UTF-32 over U+FFFF -> UTF-16 surrogate pair */
-#define UTF32toUTF16HS(x) (0xd800 + (((x-0x10000) >> 10) & 0x3ff))
-#define UTF32toUTF16LS(x) (0xdc00 + ( x & 0x3ff))
-
-/* Interal Variables */
-static FILE *dvi_file = NULL;
-static char linear = 0; /* set to 1 for strict linear processing of the input */
-
-static int32_t *page_loc = NULL;
-static unsigned int num_pages = 0;
-
-static uint32_t dvi_file_size = 0;
-
-static struct dvi_header
-{
- uint32_t unit_num;
- uint32_t unit_den;
- uint32_t mag;
- uint32_t media_width, media_height;
- unsigned int stackdepth;
- char comment[257];
-} dvi_info = {
- 25400000 , /* num */
- 473628672, /* den */
- 1000, /* mag */
- 0, 0, /* media width and height */
- 0, /* stackdepth */
- {'\0'} /* comment */
-};
-
-static double dev_origin_x = 72.0, dev_origin_y = 770.0;
-
-double get_origin (int x)
-{
- return x ? dev_origin_x : dev_origin_y;
-}
-
-#define LTYPESETTING 0 /* typesetting from left to right */
-#define RTYPESETTING 1 /* typesetting from right to left */
-#define SKIMMING 2 /* skimming through reflected segment measuring its width */
-#define REVERSE(MODE) (LTYPESETTING + RTYPESETTING - MODE)
-
-struct dvi_lr
-{
- int state, font;
- unsigned int buf_index;
-};
-
-static struct dvi_lr lr_state; /* state at start of current skimming */
-static int lr_mode; /* current direction or skimming depth */
-static uint32_t lr_width; /* total width of reflected segment */
-static uint32_t lr_width_stack[DVI_STACK_DEPTH_MAX];
-static unsigned lr_width_stack_depth = 0;
-
-#define PHYSICAL 1
-#define VIRTUAL 2
-#define SUBFONT 3
-#define NATIVE 4
-#define DVI 1
-#define VF 2
-
-struct gm {
- spt_t advance, ascent, descent;
-};
-
-static struct loaded_font
-{
- int type; /* Type is physical or virtual */
- int font_id; /* id returned by dev (for PHYSICAL fonts)
- * or by vf module for (VIRTUAL fonts)
- */
- int subfont_id; /* id returned by subfont_locate_font() */
- int tfm_id;
- spt_t size;
- int source; /* Source is either DVI or VF */
- uint32_t rgba_color;
- uint8_t rgba_used;
- /* Indicates that rgba_color is used or not.
- * It enables full range of opacity: 0-255.
- */
- int xgs_id; /* Transparency ExtGState */
-
- /* XeTeX requires glyph metrics */
- struct gm *gm;
- int shift_gid;
- uint16_t num_glyphs;
-
- int layout_dir;
-
- float extend;
- float slant;
- float embolden;
-
- int is_unicode;
- int minbytes;
- char padbytes[4];
-} *loaded_fonts = NULL;
-static int num_loaded_fonts = 0, max_loaded_fonts = 0;
-
-static void
-need_more_fonts (unsigned n)
-{
- if (num_loaded_fonts + n > max_loaded_fonts) {
- max_loaded_fonts += TEX_FONTS_ALLOC_SIZE;
- loaded_fonts = RENEW (loaded_fonts, max_loaded_fonts, struct loaded_font);
- }
-}
-
-static struct font_def
-{
- int32_t tex_id;
- spt_t point_size;
- spt_t design_size;
- char *font_name;
- int font_id; /* index of _loaded_ font in loaded_fonts array */
- int used;
- int native; /* boolean */
- uint32_t rgba_color; /* only used for native fonts in XeTeX */
- uint8_t rgba_used; /* Indicates that rgba_color is used or not.
- * It enables full range of opacity: 0-255.
- */
- uint32_t face_index;
- int layout_dir; /* 1 = vertical, 0 = horizontal */
- int extend;
- int slant;
- int embolden;
-} *def_fonts = NULL;
-
-#define XDV_FLAG_VERTICAL 0x0100
-#define XDV_FLAG_COLORED 0x0200
-#define XDV_FLAG_FEATURES 0x0400
-#define XDV_FLAG_EXTEND 0x1000
-#define XDV_FLAG_SLANT 0x2000
-#define XDV_FLAG_EMBOLDEN 0x4000
-
-static int num_def_fonts = 0, max_def_fonts = 0;
-static int compute_boxes = 0, link_annot = 1;
-/* If "catch_phantom" is non-zero, dvipdfmx try to catch phantom texts.
- * Dvipdfmx treats DVI horizontal movement instructions (x, w, right) differently
- * when "catch_phantom" is non-zero. Amount of horizontal move will be added to
- * the current annotation rectangle with "height" and "depth" estimated as,
- *
- * catch_phantom=1: with current font size
- * catch_phantom=2: with specified height and depth
- */
-static int catch_phantom = 0;
-static double phantom_height = 0.0;
-static double phantom_depth = 0.0;
-
-#define DVI_PAGE_BUF_CHUNK 0x10000U /* 64K should be plenty for most pages */
-
-static unsigned char* dvi_page_buffer;
-static unsigned int dvi_page_buf_size;
-static unsigned int dvi_page_buf_index;
-
-/* functions to read numbers from the dvi file and store them in dvi_page_buffer */
-static int get_and_buffer_unsigned_byte (FILE *file)
-{
- int ch;
- if ((ch = fgetc (file)) < 0)
- ERROR ("File ended prematurely\n");
- if (dvi_page_buf_index >= dvi_page_buf_size) {
- dvi_page_buf_size += DVI_PAGE_BUF_CHUNK;
- dvi_page_buffer = RENEW(dvi_page_buffer, dvi_page_buf_size, unsigned char);
- }
- dvi_page_buffer[dvi_page_buf_index++] = ch;
- return ch;
-}
-
-static unsigned int get_and_buffer_unsigned_pair (FILE *file)
-{
- unsigned int pair = get_and_buffer_unsigned_byte(file);
- pair = (pair << 8) | get_and_buffer_unsigned_byte(file);
- return pair;
-}
-
-static void get_and_buffer_bytes(FILE *file, unsigned int count)
-{
- if (dvi_page_buf_index + count >= dvi_page_buf_size) {
- dvi_page_buf_size = dvi_page_buf_index + count + DVI_PAGE_BUF_CHUNK;
- dvi_page_buffer = RENEW(dvi_page_buffer, dvi_page_buf_size, unsigned char);
- }
- if (fread(dvi_page_buffer + dvi_page_buf_index, 1, count, file) != count)
- ERROR ("File ended prematurely\n");
- dvi_page_buf_index += count;
-}
-
-/* functions to fetch values from dvi_page_buffer */
-
-static int get_buffered_unsigned_byte (void)
-{
- return dvi_page_buffer[dvi_page_buf_index++];
-}
-
-static unsigned int get_buffered_unsigned_pair (void)
-{
- unsigned int pair = dvi_page_buffer[dvi_page_buf_index++];
- pair = (pair << 8) | dvi_page_buffer[dvi_page_buf_index++];
- return pair;
-}
-
-static int32_t get_buffered_signed_quad(void)
-{
- int i;
- int32_t quad = dvi_page_buffer[dvi_page_buf_index++];
- /* Check sign on first byte before reading others */
- if (quad >= 0x80)
- quad -= 0x100;
- for (i=0; i<3; i++) {
- quad = (quad << 8) | dvi_page_buffer[dvi_page_buf_index++];
- }
- return quad;
-}
-
-static int32_t get_buffered_signed_num(unsigned char num)
-{
- int32_t quad = dvi_page_buffer[dvi_page_buf_index++];
- if (quad > 0x7f)
- quad -= 0x100;
- switch (num) {
- case 3: quad = (quad << 8) | dvi_page_buffer[dvi_page_buf_index++];
- case 2: quad = (quad << 8) | dvi_page_buffer[dvi_page_buf_index++];
- case 1: quad = (quad << 8) | dvi_page_buffer[dvi_page_buf_index++];
- default: break;
- }
- return quad;
-}
-
-static int32_t get_buffered_unsigned_num(unsigned char num)
-{
- int32_t quad = dvi_page_buffer[dvi_page_buf_index++];
- switch (num) {
- case 3: if (quad > 0x7f)
- quad -= 0x100;
- quad = (quad << 8) | dvi_page_buffer[dvi_page_buf_index++];
- case 2: quad = (quad << 8) | dvi_page_buffer[dvi_page_buf_index++];
- case 1: quad = (quad << 8) | dvi_page_buffer[dvi_page_buf_index++];
- default: break;
- }
- return quad;
-}
-
-#define skip_bufferd_bytes(n) dvi_page_buf_index += n
-
-unsigned int
-dvi_npages (void)
-{
- return num_pages;
-}
-
-static const char invalid_signature[] =
-"Something is wrong. Are you sure this is a DVI file?";
-
-#define range_check_loc(loc) \
- if ((loc) > dvi_file_size) {\
- ERROR(invalid_signature); \
- }
-
-static int pre_id_byte, post_id_byte, is_ptex = 0, has_ptex = 0;
-
-static void
-check_id_bytes (void) {
- if (pre_id_byte != post_id_byte && (pre_id_byte != DVI_ID || post_id_byte != DVIV_ID))
- ERROR ("Inconsistent DVI id_bytes %d (pre) and %d (post)", pre_id_byte, post_id_byte);
-}
-
-static void
-need_XeTeX (int c) {
- if (dpx_conf.compat_mode != dpx_mode_xdv_mode)
- ERROR ("DVI opcode %i only valid for XeTeX", c);
-}
-
-static void
-need_pTeX (int c) {
- if (!is_ptex)
- ERROR ("DVI opcode %i only valid for Ascii pTeX", c);
- has_ptex = 1;
-}
-
-static int32_t
-find_post (void)
-{
- off_t dvi_size;
- int32_t current;
- int ch;
-
- /* First find end of file */
- dvi_size = xfile_size (dvi_file, "DVI");
- if (dvi_size > 0x7fffffff)
- ERROR("DVI file size exceeds 31-bit");
- dvi_file_size = dvi_size;
- current = dvi_size;
-
- /* Scan backwards through PADDING */
- do {
- xseek_absolute (dvi_file, --current, "DVI");
- } while ((ch = fgetc(dvi_file)) == PADDING &&
- current > 0);
-
- /* file_position now points to last non padding character or
- * beginning of file */
- if (dvi_file_size - current < 4 || current == 0 ||
- !(ch == DVI_ID || ch == DVIV_ID || ch == XDV_ID || ch == XDV_ID_OLD)) {
- MESG("DVI ID = %d\n", ch);
- ERROR(invalid_signature);
- }
-
- post_id_byte = ch;
- if (ch == XDV_ID || ch == XDV_ID_OLD)
- dpx_conf.compat_mode = dpx_mode_xdv_mode;
- is_ptex = ch == DVIV_ID;
-
- /* Make sure post_post is really there */
- current = current - 5;
- xseek_absolute (dvi_file, current, "DVI");
- if ((ch = fgetc(dvi_file)) != POST_POST) {
- MESG("Found %d where post_post opcode should be\n", ch);
- ERROR(invalid_signature);
- }
- current = get_signed_quad(dvi_file);
- xseek_absolute (dvi_file, current, "DVI");
- if ((ch = fgetc(dvi_file)) != POST) {
- MESG("Found %d where post_post opcode should be\n", ch);
- ERROR(invalid_signature);
- }
-
- /* Finally check the ID byte in the preamble */
- /* An Ascii pTeX DVI file has id_byte DVI_ID in the preamble but DVIV_ID in the postamble. */
- xseek_absolute (dvi_file, 0, "DVI");
- if ((ch = get_unsigned_byte(dvi_file)) != PRE) {
- MESG("Found %d where PRE was expected\n", ch);
- ERROR(invalid_signature);
- }
- ch = get_unsigned_byte(dvi_file);
- if (!(ch == DVI_ID || ch == XDV_ID || ch == XDV_ID_OLD)) {
- MESG("DVI ID = %d\n", ch);
- ERROR(invalid_signature);
- }
- pre_id_byte = ch;
- check_id_bytes();
-
- return current;
-}
-
-static void
-get_page_info (int32_t post_location)
-{
- int i;
-
- xseek_absolute (dvi_file, post_location + 27, "DVI");
- num_pages = get_unsigned_pair(dvi_file);
- if (num_pages == 0) {
- ERROR("Page count is 0!");
- }
- if (dpx_conf.verbose_level > 2) {
- MESG("Page count:\t %4d\n", num_pages);
- }
-
- page_loc = NEW(num_pages, int32_t);
-
- xseek_absolute (dvi_file, post_location + 1, "DVI");
- page_loc[num_pages-1] = get_unsigned_quad(dvi_file);
- range_check_loc(page_loc[num_pages-1] + 41);
- for (i = num_pages - 2; i >= 0; i--) {
- xseek_absolute (dvi_file, page_loc[i+1] + 41, "DVI");
- page_loc[i] = get_unsigned_quad(dvi_file);
- range_check_loc(page_loc[num_pages-1] + 41);
- }
-}
-
-/* Following are computed "constants" used for unit conversion */
-static double dvi2pts = 1.52018, total_mag = 1.0;
-
-double
-dvi_tell_mag (void)
-{
- return total_mag;
-}
-
-static void
-do_scales (double mag)
-{
- total_mag = (double) dvi_info.mag / 1000.0 * mag;
- dvi2pts = (double) dvi_info.unit_num / (double) dvi_info.unit_den;
- dvi2pts *= (72.0 / 254000.0);
-}
-
-static void
-get_dvi_info (int32_t post_location)
-{
- xseek_absolute (dvi_file, post_location + 5, "DVI");
-
- dvi_info.unit_num = get_unsigned_quad(dvi_file);
- dvi_info.unit_den = get_unsigned_quad(dvi_file);
- dvi_info.mag = get_unsigned_quad(dvi_file);
-
- dvi_info.media_height = get_unsigned_quad(dvi_file);
- dvi_info.media_width = get_unsigned_quad(dvi_file);
-
- dvi_info.stackdepth = get_unsigned_pair(dvi_file);
-
- if (dvi_info.stackdepth > DVI_STACK_DEPTH_MAX) {
- WARN("DVI need stack depth of %d,", dvi_info.stackdepth);
- WARN("but DVI_STACK_DEPTH_MAX is %d.", DVI_STACK_DEPTH_MAX);
- ERROR("Capacity exceeded.");
- }
-
- if (dpx_conf.verbose_level > 2) {
- MESG("DVI File Info\n");
- MESG("Unit: %ld / %ld\n", dvi_info.unit_num, dvi_info.unit_den);
- MESG("Magnification: %ld\n", dvi_info.mag);
- MESG("Media Height: %ld\n", dvi_info.media_height);
- MESG("Media Width: %ld\n", dvi_info.media_width);
- MESG("Stack Depth: %d\n", dvi_info.stackdepth);
- }
-}
-
-static void
-get_preamble_dvi_info (void)
-{
- int ch;
-
- ch = get_unsigned_byte(dvi_file);
- if (ch != PRE) {
- MESG("Found %d where PRE was expected\n", ch);
- ERROR(invalid_signature);
- }
-
- /* An Ascii pTeX DVI file has id_byte DVI_ID in the preamble but DVIV_ID in the postamble. */
- ch = get_unsigned_byte(dvi_file);
- if (!(ch == DVI_ID || ch == XDV_ID || ch == XDV_ID_OLD)) {
- MESG("DVI ID = %d\n", ch);
- ERROR(invalid_signature);
- }
-
- pre_id_byte = ch;
- if (ch == XDV_ID || ch == XDV_ID_OLD)
- dpx_conf.compat_mode = dpx_mode_xdv_mode;
- is_ptex = ch == DVI_ID; /* maybe */
-
- dvi_info.unit_num = get_positive_quad(dvi_file, "DVI", "unit_num");
- dvi_info.unit_den = get_positive_quad(dvi_file, "DVI", "unit_den");
- dvi_info.mag = get_positive_quad(dvi_file, "DVI", "mag");
-
- ch = get_unsigned_byte(dvi_file);
- if (fread(dvi_info.comment,
- 1, ch, dvi_file) != ch) {
- ERROR(invalid_signature);
- }
- dvi_info.comment[ch] = '\0';
-
- if (dpx_conf.verbose_level > 2) {
- MESG("DVI File Info\n");
- MESG("Unit: %ld / %ld\n", dvi_info.unit_num, dvi_info.unit_den);
- MESG("Magnification: %ld\n", dvi_info.mag);
- }
-
- if (dpx_conf.verbose_level > 0) {
- MESG("DVI Comment: %s\n", dvi_info.comment);
- }
-
- num_pages = 0x7FFFFFFU; /* for linear processing: we just keep going! */
-}
-
-const char *
-dvi_comment (void)
-{
- return dvi_info.comment;
-}
-
-static void
-proc_dvilua_font_record (int32_t tex_id, const char *font_name, uint32_t point_size, uint32_t design_size)
-{
- char *file_name, *p, *q, *endptr;
- uint32_t index = 0;
- uint32_t embolden = 0;
- int32_t slant = 0, extend = 0x00010000;
-
- ASSERT(font_name[0] == '[');
-
- /* redundant check but leave this here anyway */
- if (num_def_fonts >= max_def_fonts) {
- max_def_fonts += TEX_FONTS_ALLOC_SIZE;
- def_fonts = RENEW (def_fonts, max_def_fonts, struct font_def);
- }
-
- file_name = NEW(strlen(font_name) + 1, char);
- strcpy(file_name, font_name + 1);
- endptr = file_name + strlen(file_name);
- q = strchr(file_name, ']');
- if (q == NULL) {
- ERROR("Syntax error in dvilua fnt_def: no ']' found in font name.");
- }
- *q = '\0';
-
- p = q + 1;
- if (p < endptr && *p == ':') {
- for (p++; *p != '\0' && p < endptr; ) {
- char *kvsep, *delim;
-
- delim = strchr(p, ';');
- kvsep = strchr(p, '=');
- if (delim == NULL)
- delim = endptr;
- if (kvsep == NULL || kvsep >= delim) {
- ERROR("Syntax error in dvilua fnt_def: not in key=value format: %s", font_name);
- }
- *kvsep = '\0';
- if (!strcmp(p, "index")) {
- uint32_t value = strtoul(kvsep + 1, &q, 10);
- if (q != delim) {
- WARN("Syntax error in dvilua fnt_def: invalid value specified for \"%s\": %s", p, font_name);
- } else {
- index = value;
- }
- } else if (!strcmp(p, "embolden")) {
- int32_t value = strtol(kvsep + 1, &q, 10);
- if (q != delim) {
- WARN("Syntax error in dvilua fnt_def: invalid value specified for \"%s\": %s", p, font_name);
- } else {
- embolden = value;
- }
- } else if (!strcmp(p, "slant")) {
- int32_t value = strtol(kvsep + 1, &q, 10);
- if (q != delim) {
- WARN("Syntax error in dvilua fnt_def: invalid value specified for \"%s\": %s", p, font_name);
- } else {
- slant = value;
- }
- } else if (!strcmp(p, "extend")) {
- int32_t value = strtol(kvsep + 1, &q, 10);
- if (q != delim) {
- WARN("Syntax error in dvilua fnt_def: invalid value specified for \"%s\": %s", p, font_name);
- } else {
- extend = value;
- }
- } else {
- WARN("Ignoring unrecognized/unsupported key \"%s\" in dvilua fnt_def: %s", p, font_name);
- }
- p = delim + 1;
- }
- }
-
- def_fonts[num_def_fonts].tex_id = tex_id;
- def_fonts[num_def_fonts].font_name = file_name;
- def_fonts[num_def_fonts].face_index = index;
- def_fonts[num_def_fonts].point_size = point_size;
- def_fonts[num_def_fonts].design_size = design_size;
- def_fonts[num_def_fonts].used = 0;
- def_fonts[num_def_fonts].native = 1;
-
- def_fonts[num_def_fonts].layout_dir = 0;
- def_fonts[num_def_fonts].rgba_color = 0xffffffff;
- def_fonts[num_def_fonts].rgba_used = 0;
- def_fonts[num_def_fonts].extend = extend;
- def_fonts[num_def_fonts].slant = slant;
- def_fonts[num_def_fonts].embolden = embolden;
-
- num_def_fonts++;
-
- return;
-}
-
-#define SIG_DVILUA_FNT_DEF ('L' << 24|'u' << 16|'a' << 8|'F')
-
-static void
-read_font_record (int32_t tex_id)
-{
- int dir_length, name_length;
- uint32_t checksum;
- uint32_t point_size, design_size;
- char *directory, *font_name;
-
- if (num_def_fonts >= max_def_fonts) {
- max_def_fonts += TEX_FONTS_ALLOC_SIZE;
- def_fonts = RENEW (def_fonts, max_def_fonts, struct font_def);
- }
- checksum = get_unsigned_quad(dvi_file);
- point_size = get_positive_quad(dvi_file, "DVI", "point_size");
- design_size = get_positive_quad(dvi_file, "DVI", "design_size");
- dir_length = get_unsigned_byte(dvi_file);
- name_length = get_unsigned_byte(dvi_file);
-
- directory = NEW(dir_length + 1, char);
- if (fread(directory, 1, dir_length, dvi_file) != dir_length) {
- ERROR(invalid_signature);
- }
- directory[dir_length] = '\0';
- RELEASE(directory); /* unused */
-
- font_name = NEW(name_length + 1, char);
- if (fread(font_name, 1, name_length, dvi_file) != name_length) {
- ERROR(invalid_signature);
- }
- font_name[name_length] = '\0';
-
- if (checksum == SIG_DVILUA_FNT_DEF && name_length > 0 && font_name[0] == '[') {
- proc_dvilua_font_record(tex_id, font_name, point_size, design_size);
- RELEASE(font_name);
- return;
- }
- def_fonts[num_def_fonts].tex_id = tex_id;
- def_fonts[num_def_fonts].font_name = font_name;
- def_fonts[num_def_fonts].point_size = point_size;
- def_fonts[num_def_fonts].design_size = design_size;
- def_fonts[num_def_fonts].used = 0;
- def_fonts[num_def_fonts].native = 0;
- def_fonts[num_def_fonts].rgba_color = 0xffffffff;
- def_fonts[num_def_fonts].rgba_used = 0;
- def_fonts[num_def_fonts].face_index = 0;
- def_fonts[num_def_fonts].layout_dir = 0;
- def_fonts[num_def_fonts].extend = 0x00010000; /* 1.0 */
- def_fonts[num_def_fonts].slant = 0;
- def_fonts[num_def_fonts].embolden = 0;
- num_def_fonts++;
-
- return;
-}
-
-static void
-read_native_font_record (int32_t tex_id)
-{
- unsigned int flags;
- uint32_t point_size;
- char *font_name;
- int len;
- uint32_t index;
-
- if (num_def_fonts >= max_def_fonts) {
- max_def_fonts += TEX_FONTS_ALLOC_SIZE;
- def_fonts = RENEW (def_fonts, max_def_fonts, struct font_def);
- }
- point_size = get_positive_quad(dvi_file, "DVI", "point_size");
- flags = get_unsigned_pair(dvi_file);
-
- len = (int) get_unsigned_byte(dvi_file); /* font name length */
- font_name = NEW(len + 1, char);
- if (fread(font_name, 1, len, dvi_file) != len) {
- ERROR(invalid_signature);
- }
- font_name[len] = '\0';
-
- index = get_positive_quad(dvi_file, "DVI", "index");
-
- def_fonts[num_def_fonts].tex_id = tex_id;
- def_fonts[num_def_fonts].font_name = font_name;
- def_fonts[num_def_fonts].face_index = index;
- def_fonts[num_def_fonts].point_size = point_size;
- def_fonts[num_def_fonts].design_size = 655360; /* hard-code as 10pt for now, not used anyway */
- def_fonts[num_def_fonts].used = 0;
- def_fonts[num_def_fonts].native = 1;
-
- def_fonts[num_def_fonts].layout_dir = 0;
- def_fonts[num_def_fonts].rgba_color = 0xffffffff;
- def_fonts[num_def_fonts].rgba_used = 0;
- def_fonts[num_def_fonts].extend = 0x00010000;
- def_fonts[num_def_fonts].slant = 0;
- def_fonts[num_def_fonts].embolden = 0;
-
- if (flags & XDV_FLAG_VERTICAL)
- def_fonts[num_def_fonts].layout_dir = 1;
-
- if (flags & XDV_FLAG_COLORED) {
- def_fonts[num_def_fonts].rgba_color = get_unsigned_quad(dvi_file);
- def_fonts[num_def_fonts].rgba_used = 1;
- }
-
- if (flags & XDV_FLAG_EXTEND)
- def_fonts[num_def_fonts].extend = get_signed_quad(dvi_file);
-
- if (flags & XDV_FLAG_SLANT)
- def_fonts[num_def_fonts].slant = get_signed_quad(dvi_file);
-
- if (flags & XDV_FLAG_EMBOLDEN)
- def_fonts[num_def_fonts].embolden = get_signed_quad(dvi_file);
-
- num_def_fonts++;
-
- return;
-}
-
-static void
-get_dvi_fonts (int32_t post_location)
-{
- int code;
-
- xseek_absolute (dvi_file, post_location + 29, "DVI");
- while ((code = get_unsigned_byte(dvi_file)) != POST_POST) {
- switch (code) {
- case FNT_DEF1: case FNT_DEF2: case FNT_DEF3: case FNT_DEF4:
- read_font_record(get_unsigned_num(dvi_file, code-FNT_DEF1));
- break;
- case XDV_NATIVE_FONT_DEF:
- need_XeTeX(code);
- read_native_font_record(get_signed_quad(dvi_file));
- break;
- default:
- MESG("Unexpected op code: %3d\n", code);
- ERROR(invalid_signature);
- }
- }
- if (dpx_conf.verbose_level > 2) {
- unsigned i;
-
- MESG("\n");
- MESG("DVI file font info\n");
- for (i = 0; i < num_def_fonts; i++) {
- MESG("TeX Font: %10s loaded at ID=%5d, ",
- def_fonts[i].font_name, def_fonts[i].tex_id);
- MESG("size=%5.2fpt (scaled %4.1f%%)",
- def_fonts[i].point_size * dvi2pts,
- 100.0 * ((double) def_fonts[i].point_size / def_fonts[i].design_size));
- MESG("\n");
- }
- }
-}
-
-static void get_comment (void)
-{
- int length;
-
- xseek_absolute (dvi_file, 14, "DVI");
- length = get_unsigned_byte(dvi_file);
- if (fread(dvi_info.comment,
- 1, length, dvi_file) != length) {
- ERROR(invalid_signature);
- }
- dvi_info.comment[length] = '\0';
- if (dpx_conf.verbose_level > 0) {
- MESG("DVI Comment: %s\n", dvi_info.comment);
- }
-}
-
-/*
- * The section below this line deals with the actual processing of the
- * dvi file.
- *
- * The dvi file processor state is contained in the following variables:
- */
-
-struct dvi_registers
-{
- int32_t h, v, w, x, y, z;
- unsigned int d;
-};
-
-static struct dvi_registers dvi_state;
-static struct dvi_registers dvi_stack[DVI_STACK_DEPTH_MAX];
-static unsigned dvi_stack_depth = 0 ;
-static int current_font = -1;
-static int processing_page = 0 ;
-
-static void
-clear_state (void)
-{
- dvi_state.h = 0; dvi_state.v = 0; dvi_state.w = 0;
- dvi_state.x = 0; dvi_state.y = 0; dvi_state.z = 0;
- dvi_state.d = 0; /* direction */
- pdf_dev_set_dirmode(0);
- dvi_stack_depth = 0;
- current_font = -1;
-}
-
-/* Migrated from pdfdev.c:
- * The following codes are originally put into pdfdev.c.
- * But they are moved to here to make PDF output independent
- * from DVI input.
- * pdfdoc, pdfspecial and htex are also modified. pdfspecial
- * and htex does tag/untag depth. pdfdev and pdfdoc now does
- * not care about line-breaking at all.
- */
-static unsigned marked_depth = 0;
-static int tagged_depth = -1;
-
-static void
-dvi_mark_depth (void)
-{
- /* If decreasing below tagged_depth */
- if (link_annot &&
- marked_depth == tagged_depth &&
- dvi_stack_depth == tagged_depth - 1) {
- /*
- * See if this appears to be the end of a "logical unit"
- * that's been broken. If so, flush the logical unit.
- */
- pdf_doc_break_annot();
- }
- marked_depth = dvi_stack_depth;
-}
-
-/*
- * The following routines setup and tear down a callback at a
- * certain stack depth. This is used to handle broken (linewise)
- * links.
- */
-void
-dvi_tag_depth (void)
-{
- tagged_depth = marked_depth;
- dvi_compute_boxes(1);
-}
-
-void
-dvi_untag_depth (void)
-{
- tagged_depth = -1;
- dvi_compute_boxes(0);
-}
-
-void
-dvi_compute_boxes (int flag)
-{
- compute_boxes = flag;
-}
-
-void
-dvi_link_annot (int flag)
-{
- link_annot = flag;
-}
-
-int
-dvi_is_tracking_boxes(void)
-{
- return (compute_boxes && link_annot && marked_depth >= tagged_depth);
-}
-
-void
-dvi_set_linkmode (int mode)
-{
- catch_phantom = mode != 0 ? 1 : 0;
-}
-
-void
-dvi_set_phantom_height (double height, double depth)
-{
- phantom_height = height;
- phantom_depth = depth;
- catch_phantom = 2;
-}
-
-/* All those things related to "compensation" is intruduced due to
- * bcontent/econtent specials. They are originally implemented with
- * modification to very important part of pdfdev functions such as
- * pdf_dev_set_string(), and it made things very unclear.
- *
- * It is not good idea to modify the core part of PDF output routines
- * just for implementing DVI "special" command. They do not make sense
- * and just look odd when PDF output routines are separated from dvipdfmx.
- */
-static struct spt_coord {
- spt_t x, y;
-} compensation = { 0, 0 };
-
-void dvi_set_compensation (double x, double y)
-{
- compensation.x = (spt_t) round(x / dvi2pts);
- compensation.y = (spt_t) round(y / dvi2pts);
-}
-
-static void
-set_string (spt_t xpos,
- spt_t ypos,
- const void *instr_ptr,
- int instr_len,
- spt_t width,
- int font_id)
-{
- xpos -= compensation.x;
- ypos -= compensation.y;
- pdf_dev_set_string(xpos, ypos, instr_ptr, instr_len, width, font_id);
-}
-
-static void
-set_rule (spt_t xpos, spt_t ypos, spt_t width, spt_t height)
-{
- xpos -= compensation.x;
- ypos -= compensation.y;
- pdf_dev_set_rule(xpos, ypos, width, height);
-}
-
-static void
-calc_rect (pdf_rect *r, spt_t xpos, spt_t ypos, spt_t width, spt_t height, spt_t depth)
-{
- xpos -= compensation.x;
- ypos -= compensation.y;
- pdf_dev_set_rect(r, xpos, ypos, width, height, depth);
-}
-
-void
-dvi_do_special (const void *buffer, int32_t size)
-{
- double x_user, y_user, mag;
- const char *p;
- int is_drawable = 0;
- pdf_rect rect = {0.0, 0.0, 0.0, 0.0};
-
- graphics_mode();
-
- p = (const char *) buffer;
-
- x_user = dvi_state.h * dvi2pts;
- y_user = -dvi_state.v * dvi2pts;
- mag = dvi_tell_mag();
-
- if (spc_exec_special(p, size, x_user, y_user, mag, &is_drawable, &rect) < 0) {
- if (dpx_conf.verbose_level > 0) {
- dump(p, p + size);
- }
- return;
- }
-
- if (dvi_is_tracking_boxes() && is_drawable) {
- pdf_doc_expand_box(&rect);
- }
-
- return;
-}
-
-double
-dvi_unit_size (void)
-{
- return dvi2pts;
-}
-
-
-int
-dvi_locate_font (const char *tfm_name, spt_t ptsize)
-{
- int cur_id = -1;
- const char *name = tfm_name;
- int subfont_id = -1, font_id; /* VF or device font ID */
- fontmap_rec *mrec;
-
- if (dpx_conf.verbose_level > 0)
- MESG("<%s@%.2fpt", tfm_name, ptsize * dvi2pts);
-
- need_more_fonts(1);
-
- /* This routine needs to be recursive/reentrant. Load current high water
- * mark into an automatic variable.
- */
- cur_id = num_loaded_fonts++;
-
- mrec = pdf_lookup_fontmap_record(tfm_name);
- /* Load subfont mapping table */
- if (mrec && mrec->charmap.sfd_name && mrec->charmap.subfont_id) {
- subfont_id = sfd_load_record(mrec->charmap.sfd_name, mrec->charmap.subfont_id);
- }
-
- memset(&loaded_fonts[cur_id], 0, sizeof (struct loaded_font));
-
- /* TFM must exist here. */
- loaded_fonts[cur_id].tfm_id = tfm_open(tfm_name, 1);
- loaded_fonts[cur_id].subfont_id = subfont_id;
- loaded_fonts[cur_id].size = ptsize;
- /* This will be reset later if it was really generated by the dvi file. */
- loaded_fonts[cur_id].source = VF;
-
- /* The order of searching fonts is as follows:
- *
- * 1. If mrec is null, that is, there is no map entry matching
- * with tfm_name, then search a virtual font matching with
- * tfm_name at first. If no virtual font is found, search a
- * PK font matching with tfm_name.
- *
- * 2. If mrec is non-null, search a physical scalable font.
- *
- * 3. Notice that every subfont gets non-null mrec. In this case,
- * enc_name corresponding to mrec will be used instead of mrec.
- * That is enc_name is NULL, search a virtual font for Omega (.ovf)
- * matching with the base name of the subfont. If no virtual font
- * for Omega is found, it is a fatal error because there is no PK font
- * for Omega.
- */
- if (!mrec) {
- font_id = vf_locate_font(tfm_name, ptsize);
- if (font_id >= 0) {
- loaded_fonts[cur_id].type = VIRTUAL;
- loaded_fonts[cur_id].font_id = font_id;
- if (dpx_conf.verbose_level > 0)
- MESG("(VF)>");
- return cur_id;
- }
- }
-#if 1
- /* Sorry, I don't understand this well... Please fix.
- * The purpose of this seems to be:
- *
- * Map 8-bit char codes in subfont to 16-bit code with SFD mapping
- * and map subfonts to single OVF font.
- *
- * But it apparently only does TFM -> OVF mapping but no character
- * code mapping. Please see dvi_set(), you can't have both font->type
- * VIRTUAL and font->subfont_id >= 0. Am I missing something?
- */
- else if (subfont_id >= 0 && mrec->map_name)
- {
- fontmap_rec *mrec1 = pdf_lookup_fontmap_record(mrec->map_name);
- /* enc_name=NULL should be used only for 'built-in' encoding.
- * Please fix this!
- */
- if (mrec1 && !mrec1->enc_name) {
- font_id = vf_locate_font(mrec1->font_name, ptsize);
- if (font_id < 0)
- WARN("Could not locate Omega Virtual Font \"%s\" for \"%s\".",
- mrec1->font_name, tfm_name);
- else {
- loaded_fonts[cur_id].type = VIRTUAL;
- loaded_fonts[cur_id].font_id = font_id;
- if (dpx_conf.verbose_level > 0)
- MESG("(OVF)>");
- return cur_id;
- }
- }
- }
-#endif /* 1 */
-
- /* Failed to load a virtual font so we try to load a physical font. */
-
- /* If mrec->map_name is not NULL, font name identified in PDF output
- * is different than tfm_name, this can happen for subfonts grouped
- * into a single "intermediate" font foo@SFD@.
- * This is necessary for optimal output; to avoid unnecessary creation
- * of multiple instances of a same font, to avoid frequent font selection
- * and break of string_mode.
- */
- if (mrec && mrec->map_name) {
- name = mrec->map_name;
- } else {
- name = tfm_name;
- }
-
- /* We need ptsize for PK font creation. */
- font_id = pdf_dev_locate_font(name, ptsize);
- if (font_id < 0) {
- WARN("Could not locate a virtual/physical font for TFM \"%s\".", tfm_name);
- if (mrec && mrec->map_name) { /* has map_name */
- fontmap_rec *mrec1 = pdf_lookup_fontmap_record(mrec->map_name);
- WARN(">> This font is mapped to an intermediate 16-bit font \"%s\" with SFD charmap=<%s,%s>,",
- mrec->map_name, mrec->charmap.sfd_name, mrec->charmap.subfont_id);
- if (!mrec1)
- WARN(">> but I couldn't find font mapping for \"%s\".", mrec->map_name);
- else {
- WARN(">> and then mapped to a physical font \"%s\" by fontmap.", mrec1->font_name);
- WARN(">> Please check if kpathsea library can find this font: %s", mrec1->font_name);
- }
- } else if (mrec && !mrec->map_name) {
- char *finaldot = strrchr(mrec->font_name, '.');
- if (finaldot && strcasecmp(finaldot, ".pfa") == 0) {
- /* type1 fonts with pfa format are not supported */
- WARN("This font is mapped to a physical font \"%s\".", mrec->font_name);
- ERROR("Sorry, pfa format not supported; please convert the font to pfb, e.g., with t1binary.");
- } else {
- WARN(">> This font is mapped to a physical font \"%s\".", mrec->font_name);
- WARN(">> Please check if kpathsea library can find this font: %s", mrec->font_name);
- }
- } else {
- WARN(">> There are no valid font mapping entry for this font.");
- WARN(">> Font file name \"%s\" was assumed but failed to locate that font.", tfm_name);
- }
- ERROR("Cannot proceed without .vf or \"physical\" font for PDF output...");
- }
- memset(loaded_fonts[cur_id].padbytes, 0, 4);
- if (mrec) {
- if (mrec->opt.mapc >= 0) {
- loaded_fonts[cur_id].padbytes[2] = (mrec->opt.mapc >> 8) & 0xff;
- }
- if (mrec->enc_name && !strcmp(mrec->enc_name, "unicode")) {
- loaded_fonts[cur_id].is_unicode = 1;
- if (mrec->opt.mapc >= 0) {
- loaded_fonts[cur_id].padbytes[0] = (mrec->opt.mapc >> 24) & 0xff;
- loaded_fonts[cur_id].padbytes[1] = (mrec->opt.mapc >> 16) & 0xff;
- }
- }
- }
- loaded_fonts[cur_id].minbytes = pdf_dev_font_minbytes(font_id);
- loaded_fonts[cur_id].type = PHYSICAL;
- loaded_fonts[cur_id].font_id = font_id;
- if (loaded_fonts[cur_id].minbytes > 4) {
- WARN("Input encoding requries more than 4 bytes per char... (unsupported)");
- loaded_fonts[cur_id].minbytes = 4;
- }
-
- if (dpx_conf.verbose_level > 0)
- MESG(">");
-
- return cur_id;
-}
-
-#if defined(LIBDPX)
-int
-#else
-static int
-#endif /* LIBDPX */
-dvi_locate_native_font (const char *filename, uint32_t index,
- spt_t ptsize, int layout_dir, int extend, int slant, int embolden)
-{
- int cur_id = -1;
- fontmap_rec *mrec;
- char *fontmap_key;
- FILE *fp;
- char *path;
- sfnt *sfont;
- ULONG offset = 0;
- int is_dfont = 0, is_type1 = 0;
-
- if (dpx_conf.verbose_level > 0)
- MESG("<%s@%.2fpt", filename, ptsize * dvi2pts);
-
- if ((path = dpx_find_dfont_file(filename)) != NULL &&
- (fp = MFOPEN(path, "rb")) != NULL)
- is_dfont = 1;
- else if ((path = dpx_find_type1_file(filename)) != NULL)
- is_type1 = 1;
- else if (((path = dpx_find_opentype_file(filename)) == NULL
- && (path = dpx_find_truetype_file(filename)) == NULL)
- || (fp = MFOPEN(path, "rb")) == NULL) {
- ERROR("Cannot proceed without the font: %s", filename);
- }
- need_more_fonts(1);
-
- cur_id = num_loaded_fonts++;
-
- fontmap_key = malloc(strlen(path) + 40); // CHECK this is enough
- sprintf(fontmap_key, "%s/%u/%c/%d/%d/%d", path, index, layout_dir == 0 ? 'H' : 'V', extend, slant, embolden);
- mrec = pdf_lookup_fontmap_record(fontmap_key);
- if (mrec == NULL) {
- if ((mrec = pdf_insert_native_fontmap_record(path, index, layout_dir, extend, slant, embolden)) == NULL) {
- ERROR("Failed to insert font record for font: %s", filename);
- }
- }
-
- memset(&loaded_fonts[cur_id], 0, sizeof (struct loaded_font));
-
- loaded_fonts[cur_id].font_id = pdf_dev_locate_font(fontmap_key, ptsize);
- loaded_fonts[cur_id].size = ptsize;
- loaded_fonts[cur_id].type = NATIVE;
- loaded_fonts[cur_id].minbytes = pdf_dev_font_minbytes(loaded_fonts[cur_id].font_id);
- if (loaded_fonts[cur_id].minbytes > 4) {
- WARN("Input encoding requries more than 4 bytes per char... (unsupprted)");
- loaded_fonts[cur_id].minbytes = 4;
- }
- RELEASE(fontmap_key);
-
- if (is_type1) {
- cff_font *cffont;
- char *enc_vec[256];
- uint16_t num_glyphs;
- int i;
-
- fp = DPXFOPEN(filename, DPX_RES_TYPE_T1FONT);
- if (!fp)
- return -1;
-
- if (!is_pfb(fp))
- ERROR("Failed to read Type 1 font \"%s\".", filename);
-
- memset(enc_vec, 0, 256 * sizeof(char *));
- cffont = t1_load_font(enc_vec, 0, fp);
- if (!cffont)
- ERROR("Failed to read Type 1 font \"%s\".", filename);
- for (i = 0; i < 256; i++) {
- if (enc_vec[i])
- RELEASE(enc_vec[i]);
- }
- loaded_fonts[cur_id].shift_gid = cffont->is_notdef_notzero;
- loaded_fonts[cur_id].num_glyphs = num_glyphs = cffont->num_glyphs;
- loaded_fonts[cur_id].gm = NEW(num_glyphs + 1, struct gm);
- for (i = 0; i < num_glyphs; i++) {
- double advance, ascent, descent;
- cff_index *cstrings = cffont->cstrings;
- t1_ginfo gm;
- uint16_t gid;
-
- /* If .notdef is not the 1st glyph in CharStrings, glyph_id given by
- * FreeType should be increased by 1
- */
- gid = (cffont->is_notdef_notzero) ? i + 1 : i;
- if (gid == num_glyphs)
- break;
- t1char_get_metrics(cstrings->data + cstrings->offset[gid] - 1,
- cstrings->offset[gid + 1] - cstrings->offset[gid],
- cffont->subrs[0], &gm);
-
- advance = layout_dir == 0 ? gm.wx : gm.wy;
- ascent = gm.bbox.ury;
- descent = gm.bbox.lly;
- loaded_fonts[cur_id].gm[gid].advance = (spt_t) (ptsize * ((advance / 1000.0) * mrec->opt.extend));
- loaded_fonts[cur_id].gm[gid].ascent = (spt_t) (ptsize * ((ascent / 1000.0)));
- loaded_fonts[cur_id].gm[gid].descent = (spt_t) (ptsize * ((descent / 1000.0)));
- }
- cff_close(cffont);
- DPXFCLOSE(fp);
- } else {
- struct tt_head_table *head;
- struct tt_maxp_table *maxp;
- struct tt_hhea_table *hhea;
- struct tt_longMetrics *gm;
- spt_t ascent, descent;
- uint16_t num_glyphs;
- int i;
-
- if (is_dfont)
- sfont = dfont_open(fp, index);
- else
- sfont = sfnt_open(fp);
- if (sfont->type == SFNT_TYPE_TTC)
- offset = ttc_read_offset(sfont, index);
- else if (sfont->type == SFNT_TYPE_DFONT)
- offset = sfont->offset;
-
- sfnt_read_table_directory(sfont, offset);
- head = tt_read_head_table(sfont);
- maxp = tt_read_maxp_table(sfont);
- hhea = tt_read_hhea_table(sfont);
- ascent = (spt_t) (ptsize * ((double) hhea->ascent / (double) head->unitsPerEm));
- descent = (spt_t) (ptsize * ((double) hhea->descent / (double) head->unitsPerEm));
- loaded_fonts[cur_id].num_glyphs = num_glyphs = maxp->numGlyphs;
- if (layout_dir == 1 && sfnt_find_table_pos(sfont, "vmtx") > 0) {
- struct tt_vhea_table *vhea = tt_read_vhea_table(sfont);
- sfnt_locate_table(sfont, "vmtx");
- gm = tt_read_longMetrics(sfont, maxp->numGlyphs, vhea->numOfLongVerMetrics, vhea->numOfExSideBearings);
- RELEASE(vhea);
- } else {
- sfnt_locate_table(sfont, "hmtx");
- gm = tt_read_longMetrics(sfont, maxp->numGlyphs, hhea->numOfLongHorMetrics, hhea->numOfExSideBearings);
- }
- if (!gm)
- ERROR("Failed to read TrueType/OpenType glyph metrics table.");
- loaded_fonts[cur_id].gm = NEW(num_glyphs, struct gm);
- for (i = 0; i < num_glyphs; i++) {
- loaded_fonts[cur_id].gm[i].advance = (spt_t) (ptsize * ((double) gm[i].advance / (double) head->unitsPerEm) * mrec->opt.extend);
- loaded_fonts[cur_id].gm[i].ascent = ascent;
- loaded_fonts[cur_id].gm[i].descent = descent;
-
- }
- RELEASE(gm);
- RELEASE(hhea);
- RELEASE(maxp);
- RELEASE(head);
- sfnt_close(sfont);
- DPXFCLOSE(fp);
- }
-
- RELEASE(path);
-
- loaded_fonts[cur_id].layout_dir = layout_dir;
- loaded_fonts[cur_id].extend = mrec->opt.extend;
- loaded_fonts[cur_id].slant = mrec->opt.slant;
- loaded_fonts[cur_id].embolden = mrec->opt.bold;
-
- if (dpx_conf.verbose_level > 0)
- MESG(">");
-
- return cur_id;
-}
-
-double
-dvi_dev_xpos (void)
-{
- return dvi_state.h * dvi2pts;
-}
-
-double
-dvi_dev_ypos (void)
-{
- return -(dvi_state.v * dvi2pts);
-}
-
-static void do_moveto (int32_t x, int32_t y)
-{
- dvi_state.h = x;
- dvi_state.v = y;
-}
-
-void dvi_right (int32_t x)
-{
- spt_t save_h, save_v;
-
- if (lr_mode >= SKIMMING) {
- lr_width += x;
- return;
- }
-
- if (lr_mode == RTYPESETTING)
- x = -x;
-
- save_h = dvi_state.h;
- save_v = dvi_state.v;
-
- switch (dvi_state.d) {
- case 0:
- dvi_state.h += x; break;
- case 1:
- dvi_state.v += x; break;
- case 3:
- dvi_state.v -= x; break;
- }
-
- if (dvi_is_tracking_boxes() && catch_phantom > 0) {
- pdf_rect rect;
- spt_t width, height, depth;
- if (catch_phantom == 1) {
- if (current_font >= 0 && current_font < num_loaded_fonts) {
- height = loaded_fonts[current_font].size;
- } else {
- if (dpx_conf.verbose_level > 0) {
- WARN("Don't know how to calculate the box height since current font is not set...");
- }
- height = 0.0;
- }
- depth = 0.0;
- } else {
- height = phantom_height / dvi2pts;
- depth = phantom_depth / dvi2pts;
- }
- switch (dvi_state.d) {
- case 0:
- width = dvi_state.h - save_h;
- break;
- case 1:
- case 2:
- width = dvi_state.v - save_v;
- break;
- default:
- width = dvi_state.h - save_h;
- }
- calc_rect(&rect, save_h, -save_v, width, height, depth);
- pdf_doc_expand_box(&rect);
- }
-}
-
-void dvi_down (int32_t y)
-{
- if (lr_mode < SKIMMING) {
- switch (dvi_state.d) {
- case 0:
- dvi_state.v += y; break;
- case 1:
- dvi_state.h -= y; break;
- case 3:
- dvi_state.h += y; break;
- }
- }
-}
-
-/* _FIXME_
- * CMap decoder wants multibyte strings as input but
- * how DVI char codes are converted to multibyte sting
- * is not clear.
- */
-void
-dvi_set (int32_t ch)
-{
- struct loaded_font *font;
- spt_t width, height, depth;
- unsigned char wbuf[4];
- int n, cbytes;
-
- if (current_font < 0) {
- ERROR("No font selected!");
- }
- /* The division by dvi2pts seems strange since we actually know the
- * "dvi" size of the fonts contained in the DVI file. In other
- * words, we converted from DVI units to pts and back again!
- * The problem comes from fonts defined in VF files where we don't know
- * the DVI size. It's keeping me sane to keep *point sizes* of *all*
- * fonts in the dev.c file and convert them back if necessary.
- */
- font = &loaded_fonts[current_font];
-
- if (font->type == NATIVE) {
- if (ch >= 0 && ch < font->num_glyphs) {
- width = font->gm[ch].advance;
- } else {
- WARN("Invalid char for dvilua font (ignored): %04x", ch);
- return;
- }
- } else {
- width = tfm_get_fw_width(font->tfm_id, ch);
- width = sqxfw(font->size, width);
- }
-
- if (lr_mode >= SKIMMING) {
- lr_width += width;
- return;
- }
-
- if (lr_mode == RTYPESETTING)
- dvi_right(width); /* Will actually move left */
-
- memcpy(wbuf, font->padbytes, 4);
- switch (font->type) {
- case PHYSICAL:
- if (ch > 65535) {
- /* FIXME: uptex specific undocumented */
- if (!font->is_unicode && tfm_is_jfm(font->tfm_id)) {
- wbuf[0] = (UTF32toUTF16HS(ch) >> 8) & 0xff;
- wbuf[1] = UTF32toUTF16HS(ch) & 0xff;
- wbuf[2] = (UTF32toUTF16LS(ch) >> 8) & 0xff;
- wbuf[3] = UTF32toUTF16LS(ch) & 0xff;
- } else {
- wbuf[0] = (ch >> 24) & 0xff;
- wbuf[1] = (ch >> 16) & 0xff;
- wbuf[2] = (ch >> 8) & 0xff;
- wbuf[3] = ch & 0xff;
- }
- n = 4;
- } else if (ch > 255) {
- wbuf[2] = (ch >> 8) & 0xff;
- wbuf[3] = ch & 0xff;
- n = 2;
- } else if (font->subfont_id >= 0) {
- uint16_t uch = lookup_sfd_record(font->subfont_id, (unsigned char) ch);
- wbuf[2] = (uch >> 8) & 0xff;
- wbuf[3] = uch & 0xff;
- n = 2;
- } else {
- wbuf[3] = (unsigned char) ch;
- n = 1;
- }
- cbytes = font->minbytes > n ? font->minbytes : n;
- set_string(dvi_state.h, -dvi_state.v, wbuf + 4 - cbytes, cbytes, width, font->font_id);
- if (dvi_is_tracking_boxes()) {
- pdf_rect rect;
-
- height = tfm_get_fw_height(font->tfm_id, ch);
- depth = tfm_get_fw_depth (font->tfm_id, ch);
- height = sqxfw(font->size, height);
- depth = sqxfw(font->size, depth);
-
- calc_rect(&rect, dvi_state.h, -dvi_state.v, width, height, depth);
- pdf_doc_expand_box(&rect);
- }
- break;
- case NATIVE:
- wbuf[0] = (ch >> 8) & 0xff;
- wbuf[1] = ch & 0xff;
- set_string(dvi_state.h, -dvi_state.v, wbuf, 2, width, font->font_id);
- if (dvi_is_tracking_boxes()) {
- pdf_rect rect;
-
- height = font->gm[ch].ascent;
- depth = font->gm[ch].descent;
- calc_rect(&rect, dvi_state.h, -dvi_state.v, width, height, depth);
- pdf_doc_expand_box(&rect);
- }
- break;
- case VIRTUAL:
-#if 0
- /* See comment in locate_font() */
- if (font->subfont_id >= 0)
- ch = lookup_sfd_record(font->subfont_id, (unsigned char) ch);
-#endif /* 0 */
- vf_set_char(ch, font->font_id); /* push/pop invoked */
- break;
- }
-
- if (lr_mode == LTYPESETTING)
- dvi_right(width);
-
-}
-
-void
-dvi_put (int32_t ch)
-{
- struct loaded_font *font;
- spt_t width, height, depth;
- unsigned char wbuf[4];
- int n, cbytes;
-
- if (current_font < 0) {
- ERROR("No font selected!");
- }
-
- font = &loaded_fonts[current_font];
-
- memcpy(wbuf, font->padbytes, 4);
- switch (font->type) {
- case PHYSICAL:
- width = tfm_get_fw_width(font->tfm_id, ch);
- width = sqxfw(font->size, width);
- /* Treat a single character as a one byte string and use the
- * string routine.
- */
- if (ch > 65535) {
- /* FIXME: uptex specific undocumented */
- if (!font->is_unicode && tfm_is_jfm(font->tfm_id)) {
- wbuf[0] = (UTF32toUTF16HS(ch) >> 8) & 0xff;
- wbuf[1] = UTF32toUTF16HS(ch) & 0xff;
- wbuf[2] = (UTF32toUTF16LS(ch) >> 8) & 0xff;
- wbuf[3] = UTF32toUTF16LS(ch) & 0xff;
- } else {
- wbuf[0] = (ch >> 24) & 0xff;
- wbuf[1] = (ch >> 16) & 0xff;
- wbuf[2] = (ch >> 8) & 0xff;
- wbuf[3] = ch & 0xff;
- }
- n = 4;
- } else if (ch > 255) {
- wbuf[2] = (ch >> 8) & 0xff;
- wbuf[3] = ch & 0xff;
- n = 2;
- } else if (font->subfont_id >= 0) {
- uint16_t uch = lookup_sfd_record(font->subfont_id, (unsigned char) ch);
- wbuf[2] = (uch >> 8) & 0xff;
- wbuf[3] = uch & 0xff;
- n = 2;
- } else {
- wbuf[3] = (unsigned char) ch;
- n = 1;
- }
- cbytes = font->minbytes > n ? font->minbytes : n;
- set_string(dvi_state.h, -dvi_state.v, wbuf + 4 - cbytes, cbytes, width, font->font_id);
- if (dvi_is_tracking_boxes()) {
- pdf_rect rect;
-
- height = tfm_get_fw_height(font->tfm_id, ch);
- depth = tfm_get_fw_depth (font->tfm_id, ch);
- height = sqxfw(font->size, height);
- depth = sqxfw(font->size, depth);
-
- calc_rect(&rect, dvi_state.h, -dvi_state.v, width, height, depth);
- pdf_doc_expand_box(&rect);
- }
- break;
- case VIRTUAL:
-#if 0
- /* See comment in locate_font() */
- if (font->subfont_id >= 0)
- ch = lookup_sfd_record(font->subfont_id, (unsigned char) ch);
-#endif /* 0 */
- vf_set_char(ch, font->font_id);
- break;
- }
-
- return;
-}
-
-
-void
-dvi_rule (int32_t width, int32_t height)
-{
- if (width > 0 && height > 0) {
- do_moveto(dvi_state.h, dvi_state.v);
-
- switch (dvi_state.d) {
- case 0:
- set_rule(dvi_state.h, -dvi_state.v, width, height);
- break;
- case 1:
- set_rule(dvi_state.h, -dvi_state.v - width, height, width);
- break;
- case 3:
- set_rule(dvi_state.h - height, -dvi_state.v , height, width);
- break;
- }
- }
-}
-
-void
-dvi_dirchg (unsigned char dir)
-{
- if (dpx_conf.verbose_level > 0)
- fprintf(stderr, " > dvi_dirchg %d\n", dir);
- dvi_state.d = dir;
- pdf_dev_set_dirmode(dvi_state.d); /* 0: horizontal, 1,3: vertical */
-}
-
-static void
-do_setrule (void)
-{
- int32_t width, height;
-
- height = get_buffered_signed_quad();
- width = get_buffered_signed_quad();
- switch (lr_mode) {
- case LTYPESETTING:
- dvi_rule(width, height);
- dvi_right(width);
- break;
- case RTYPESETTING:
- dvi_right(width);
- dvi_rule(width, height);
- break;
- default:
- lr_width += width;
- break;
- }
-}
-
-static void
-do_putrule (void)
-{
- int32_t width, height;
-
- height = get_buffered_signed_quad ();
- width = get_buffered_signed_quad ();
- switch (lr_mode) {
- case LTYPESETTING:
- dvi_rule(width, height);
- break;
- case RTYPESETTING:
- dvi_right(width);
- dvi_rule(width, height);
- dvi_right(-width);
- break;
- default:
- break;
- }
-}
-
-void
-dvi_push (void)
-{
- if (dvi_stack_depth >= DVI_STACK_DEPTH_MAX)
- ERROR("DVI stack exceeded limit.");
-
- dvi_stack[dvi_stack_depth++] = dvi_state;
-}
-
-void
-dvi_pop (void)
-{
- if (dvi_stack_depth <= 0)
- ERROR ("Tried to pop an empty stack.");
-
- dvi_state = dvi_stack[--dvi_stack_depth];
- do_moveto(dvi_state.h, dvi_state.v);
- pdf_dev_set_dirmode(dvi_state.d); /* 0: horizontal, 1,3: vertical */
-}
-
-
-void
-dvi_w (int32_t ch)
-{
- dvi_state.w = ch;
- dvi_right(ch);
-}
-
-void
-dvi_w0 (void)
-{
- dvi_right(dvi_state.w);
-}
-
-void
-dvi_x (int32_t ch)
-{
- dvi_state.x = ch;
- dvi_right(ch);
-}
-
-void
-dvi_x0 (void)
-{
- dvi_right(dvi_state.x);
-}
-
-void
-dvi_y (int32_t ch)
-{
- dvi_state.y = ch;
- dvi_down(ch);
-}
-
-void
-dvi_y0 (void)
-{
- dvi_down(dvi_state.y);
-}
-
-void
-dvi_z (int32_t ch)
-{
- dvi_state.z = ch;
- dvi_down(ch);
-}
-
-void
-dvi_z0 (void)
-{
- dvi_down(dvi_state.z);
-}
-
-static void
-skip_fntdef (void)
-{
- int area_len, name_len;
-
- skip_bytes(12, dvi_file);
- area_len = get_unsigned_byte(dvi_file);
- name_len = get_unsigned_byte(dvi_file);
- skip_bytes(area_len + name_len, dvi_file);
-}
-
-/* when pre-scanning the page, we process fntdef
- and remove the fntdef opcode from the buffer */
-static void
-do_fntdef (int32_t tex_id)
-{
- if (linear)
- read_font_record(tex_id);
- else
- skip_fntdef();
- --dvi_page_buf_index;
-}
-
-void
-dvi_set_font (int font_id)
-{
- current_font = font_id;
-}
-
-static void
-do_fnt (int32_t tex_id)
-{
- int i;
-
- for (i = 0; i < num_def_fonts; i++) {
- if (def_fonts[i].tex_id == tex_id)
- break;
- }
-
- if (i == num_def_fonts) {
- ERROR("Tried to select a font that hasn't been defined: id=%d", tex_id);
- }
-
- if (!def_fonts[i].used) {
- int font_id;
-
- if (def_fonts[i].native) {
- font_id = dvi_locate_native_font(def_fonts[i].font_name,
- def_fonts[i].face_index,
- def_fonts[i].point_size,
- def_fonts[i].layout_dir,
- def_fonts[i].extend,
- def_fonts[i].slant,
- def_fonts[i].embolden);
- } else {
- font_id = dvi_locate_font(def_fonts[i].font_name,
- def_fonts[i].point_size);
- }
- loaded_fonts[font_id].rgba_color = def_fonts[i].rgba_color;
- loaded_fonts[font_id].rgba_used = def_fonts[i].rgba_used;
- /* if rgba_used == 0, not a colored font */
- if (loaded_fonts[font_id].rgba_used == 0) {
- loaded_fonts[font_id].xgs_id = -1;
- } else {
- pdf_obj *xgs_dict;
- int a = loaded_fonts[font_id].rgba_color & 0xff;
-
- /* Inefficient but don't care as transparency is not expected to be frequently used. */
- xgs_dict = pdf_new_dict();
- pdf_add_dict(xgs_dict, pdf_new_name("Type"), pdf_new_name("ExtGState"));
- pdf_add_dict(xgs_dict, pdf_new_name("ca"), pdf_new_number(a/255.0));
- pdf_add_dict(xgs_dict, pdf_new_name("CA"), pdf_new_number(a/255.0));
- loaded_fonts[font_id].xgs_id = pdf_defineresource("ExtGState", NULL, xgs_dict, 0);
- }
- loaded_fonts[font_id].source = DVI;
- def_fonts[i].used = 1;
- def_fonts[i].font_id = font_id;
- }
- current_font = def_fonts[i].font_id;
-}
-
-static void
-do_xxx (int32_t size)
-{
- if (lr_mode < SKIMMING)
- dvi_do_special(dvi_page_buffer + dvi_page_buf_index, size);
- dvi_page_buf_index += size;
-}
-
-static void
-do_bop (void)
-{
- int i;
-
- if (processing_page)
- ERROR("Got a bop in the middle of a page!");
-
- /* For now, ignore TeX's count registers */
- for (i = 0; i < 10; i++) {
- skip_bufferd_bytes(4);
- }
- /* Ignore previous page pointer since we have already
- * saved this information
- */
- skip_bufferd_bytes(4);
- clear_state();
- processing_page = 1;
-
- pdf_doc_begin_page(dvi_tell_mag(), dev_origin_x, dev_origin_y);
- spc_exec_at_begin_page();
-
- return;
-}
-
-static void
-do_eop (void)
-{
- processing_page = 0;
-
- if (dvi_stack_depth != 0) {
- ERROR("DVI stack depth is not zero at end of page");
- }
- spc_exec_at_end_page();
-
- pdf_doc_end_page();
-
- return;
-}
-
-static void
-do_dir (void)
-{
- dvi_state.d = get_buffered_unsigned_byte();
- pdf_dev_set_dirmode(dvi_state.d); /* 0: horizontal, 1,3: vertical */
-}
-
-static void
-lr_width_push (void)
-{
- if (lr_width_stack_depth >= DVI_STACK_DEPTH_MAX)
- ERROR("Segment width stack exceeded limit.");
-
- lr_width_stack[lr_width_stack_depth++] = lr_width;
-}
-
-static void
-lr_width_pop (void)
-{
- if (lr_width_stack_depth <= 0)
- ERROR("Tried to pop an empty segment width stack.");
-
- lr_width = lr_width_stack[--lr_width_stack_depth];
-}
-
-static void
-dvi_begin_reflect (void)
-{
- if (lr_mode >= SKIMMING) {
- ++lr_mode;
- } else {
- lr_state.buf_index = dvi_page_buf_index;
- lr_state.font = current_font;
- lr_state.state = lr_mode;
- lr_mode = SKIMMING;
- lr_width = 0;
- }
-}
-
-static void
-dvi_end_reflect (void)
-{
- switch (lr_mode) {
- case SKIMMING:
- current_font = lr_state.font;
- dvi_page_buf_index = lr_state.buf_index;
- lr_mode = REVERSE(lr_state.state); /* must precede dvi_right */
- dvi_right(-(int32_t)lr_width);
- lr_width_push();
- break;
- case LTYPESETTING:
- case RTYPESETTING:
- lr_width_pop();
- dvi_right(-(int32_t)lr_width);
- lr_mode = REVERSE(lr_mode);
- break;
- default: /* lr_mode > SKIMMING */
- lr_mode--;
- }
-}
-
-static void
-skip_native_font_def (void)
-{
- unsigned int flags;
- int name_length;
-
- skip_bytes(4, dvi_file); /* skip point size */
- flags = get_unsigned_pair(dvi_file);
- name_length = get_unsigned_byte(dvi_file);
- skip_bytes(name_length + 4, dvi_file);
-
- if (flags & XDV_FLAG_COLORED)
- skip_bytes(4, dvi_file);
-
- if (flags & XDV_FLAG_EXTEND)
- skip_bytes(4, dvi_file);
-
- if (flags & XDV_FLAG_SLANT)
- skip_bytes(4, dvi_file);
-
- if (flags & XDV_FLAG_EMBOLDEN)
- skip_bytes(4, dvi_file);
-}
-
-static void
-do_native_font_def (int32_t tex_id)
-{
- if (linear)
- read_native_font_record(tex_id);
- else
- skip_native_font_def();
- --dvi_page_buf_index; /* don't buffer the opcode */
-}
-
-static void
-skip_glyphs (void)
-{
- unsigned int i, slen = 0;
- slen = (unsigned int) get_buffered_unsigned_pair();
- for (i = 0; i < slen; i++) {
- skip_bufferd_bytes(4);
- skip_bufferd_bytes(4);
- skip_bufferd_bytes(2);
- }
-}
-
-static void
-do_glyphs (int do_actual_text)
-{
- struct loaded_font *font;
- spt_t width, height, depth, *xloc, *yloc;
- unsigned char wbuf[2];
- int32_t i;
- uint16_t glyph_id, slen = 0;
-
- if (current_font < 0)
- ERROR("No font selected!");
-
- font = &loaded_fonts[current_font];
-
- if (do_actual_text) {
- slen = (unsigned int) get_buffered_unsigned_pair();
- if (lr_mode >= SKIMMING) {
- for (i = 0; i < slen; i++) {
- skip_bufferd_bytes(2);
- }
- } else {
- uint16_t *unicodes = NEW(slen, uint16_t);
- for (i = 0; i < slen; i++) {
- unicodes[i] = (uint16_t) get_buffered_unsigned_pair();
- }
- pdf_dev_begin_actualtext (unicodes, slen);
- RELEASE(unicodes);
- }
- }
-
- width = get_buffered_signed_quad();
-
- if (lr_mode >= SKIMMING) {
- lr_width += width;
- skip_glyphs();
- return;
- }
-
- if (lr_mode == RTYPESETTING)
- dvi_right(width); /* Will actually move left */
-
- slen = (unsigned int) get_buffered_unsigned_pair();
- xloc = NEW(slen, spt_t);
- yloc = NEW(slen, spt_t);
- for (i = 0; i < slen; i++) {
- xloc[i] = get_buffered_signed_quad();
- yloc[i] = get_buffered_signed_quad();
- }
-
- if (font->rgba_used == 1) {
- pdf_color color;
- pdf_color_rgbcolor(&color,
- (double)((unsigned char)(font->rgba_color >> 24) & 0xff) / 255,
- (double)((unsigned char)(font->rgba_color >> 16) & 0xff) / 255,
- (double)((unsigned char)(font->rgba_color >> 8) & 0xff) / 255);
- pdf_color_push(&color, &color);
- /* Opacity:
- * Enter graphics_mode and then enclose with save/resotre
- * since pdf_color_pop() may not restore graphics state.
- */
- if (font->xgs_id >= 0) {
- pdf_obj *ref;
- char resname[16];
- char content[22];
-
- sprintf(resname, "Xtx_Gs_%08x", current_font);
- ref = pdf_get_resource_reference(font->xgs_id);
- pdf_doc_add_page_resource("ExtGState", resname, ref);
- graphics_mode();
- pdf_dev_gsave();
- sprintf(content, " /%s gs ", resname);
- pdf_doc_add_page_content(content, strlen(content));
- }
- }
-
- for (i = 0; i < slen; i++) {
- spt_t advance = 0;
-
- glyph_id = get_buffered_unsigned_pair(); /* freetype glyph index */
- if (glyph_id < font->num_glyphs) {
- if (font->shift_gid)
- glyph_id++;
- advance = font->gm[glyph_id].advance;
- if (dvi_is_tracking_boxes()) {
- pdf_rect rect;
- height = font->gm[glyph_id].ascent ;
- depth = -font->gm[glyph_id].descent;
- calc_rect(&rect, dvi_state.h + xloc[i], -dvi_state.v - yloc[i], advance, height, depth);
- pdf_doc_expand_box(&rect);
- }
- }
- wbuf[0] = glyph_id >> 8;
- wbuf[1] = glyph_id & 0xff;
- set_string(dvi_state.h + xloc[i], -dvi_state.v - yloc[i], wbuf, 2, advance, font->font_id);
- }
-
- if (font->rgba_used == 1) {
- if (font->xgs_id >= 0) {
- graphics_mode();
- pdf_dev_grestore();
- }
- pdf_color_pop();
- }
- RELEASE(xloc);
- RELEASE(yloc);
-
- if (do_actual_text) {
- pdf_dev_end_actualtext();
- }
-
- if (lr_mode == LTYPESETTING)
- dvi_right(width);
-
- return;
-}
-
-static void
-check_postamble (void)
-{
- int code;
-
- skip_bytes(28, dvi_file);
- while ((code = get_unsigned_byte(dvi_file)) != POST_POST) {
- switch (code) {
- case FNT_DEF1: case FNT_DEF2: case FNT_DEF3: case FNT_DEF4:
- skip_bytes(code + 1 - FNT_DEF1, dvi_file);
- skip_fntdef();
- break;
- case XDV_NATIVE_FONT_DEF:
- skip_bytes(4, dvi_file);
- skip_native_font_def();
- break;
- default:
- ERROR("Unexpected op code (%u) in postamble", code);
- }
- }
- skip_bytes(4, dvi_file);
- post_id_byte = get_unsigned_byte(dvi_file);
- if (!(post_id_byte == DVI_ID || post_id_byte == DVIV_ID || post_id_byte == XDV_ID || post_id_byte == XDV_ID_OLD)) {
- MESG("DVI ID = %d\n", post_id_byte);
- ERROR(invalid_signature);
- }
- check_id_bytes();
- if (has_ptex && post_id_byte != DVIV_ID)
- ERROR ("Saw opcode %i in DVI file not for Ascii pTeX", PTEXDIR);
-
- num_pages = 0; /* force loop to terminate */
-}
-
-/* Most of the work of actually interpreting
- * the dvi file is here.
- */
-void
-dvi_do_page (double page_paper_height, double hmargin, double vmargin)
-{
- unsigned char opcode;
-
- /* before this is called, we have scanned the page for papersize specials
- and the complete DVI data is now in dvi_page_buffer */
- dvi_page_buf_index = 0;
-
- /* DVI coordinate */
- dev_origin_x = hmargin;
- dev_origin_y = page_paper_height - vmargin;
-
- dvi_stack_depth = 0;
- for (;;) {
- opcode = get_buffered_unsigned_byte();
-
- if (opcode <= SET_CHAR_127) {
- dvi_set(opcode);
- continue;
- }
-
- /* If we are here, we have an opcode that is something
- * other than SET_CHAR.
- */
- if (opcode >= FNT_NUM_0 && opcode <= FNT_NUM_63) {
- do_fnt(opcode-FNT_NUM_0);
- continue;
- }
-
- switch (opcode) {
- case SET1: case SET2: case SET3:
- dvi_set(get_buffered_unsigned_num(opcode-SET1)); break;
- case SET4:
- ERROR("Multibyte (>24 bits) character not supported!");
- break;
-
- case SET_RULE:
- do_setrule();
- break;
-
- case PUT1: case PUT2: case PUT3:
- dvi_put(get_buffered_unsigned_num(opcode-PUT1)); break;
- case PUT4:
- ERROR("Multibyte (>24 bits) character not supported!");
- break;
-
- case PUT_RULE:
- do_putrule();
- break;
-
- case NOP:
- break;
-
- case BOP:
- do_bop();
- break;
- case EOP:
- do_eop();
- if (linear) {
- if ((opcode = get_unsigned_byte(dvi_file)) == POST)
- check_postamble();
- else
- ungetc(opcode, dvi_file);
- }
- return;
-
- case PUSH:
- dvi_push();
- if (lr_mode >= SKIMMING)
- lr_width_push();
- /* The following line needs to go here instead of in
- * dvi_push() since logical structure of document is
- * oblivous to virtual fonts. For example the last line on a
- * page could be at stack level 3 and the page footer should
- * be at stack level 3. However, if the page footer contains
- * virtual fonts (or other nested constructions), it could
- * fool the link breaker into thinking it was a continuation
- * of the link */
- dvi_mark_depth();
- break;
- case POP:
- dvi_pop();
- if (lr_mode >= SKIMMING)
- lr_width_pop();
- /* Above explanation holds for following line too */
- dvi_mark_depth();
- break;
-
- case RIGHT1: case RIGHT2: case RIGHT3: case RIGHT4:
- dvi_right(get_buffered_signed_num(opcode-RIGHT1)); break;
-
- case W0: dvi_w0(); break;
- case W1: case W2: case W3: case W4:
- dvi_w(get_buffered_signed_num(opcode-W1)); break;
-
- case X0: dvi_x0(); break;
- case X1: case X2: case X3: case X4:
- dvi_x(get_buffered_signed_num(opcode-X1)); break;
-
- case DOWN1: case DOWN2: case DOWN3: case DOWN4:
- dvi_down(get_buffered_signed_num(opcode-DOWN1)); break;
-
- case Y0: dvi_y0(); break;
- case Y1: case Y2: case Y3: case Y4:
- dvi_y(get_buffered_signed_num(opcode-Y1)); break;
-
- case Z0: dvi_z0(); break;
- case Z1: case Z2: case Z3: case Z4:
- dvi_z(get_buffered_signed_num(opcode-Z1)); break;
-
- case FNT1: case FNT2: case FNT3: case FNT4:
- do_fnt(get_buffered_unsigned_num(opcode-FNT1)); break;
-
- /* Specials */
- case XXX1: case XXX2: case XXX3: case XXX4:
- {
- int32_t size = get_buffered_unsigned_num(opcode-XXX1);
- if (size < 0)
- WARN("DVI: Special with %d bytes???", size);
- else
- do_xxx(size);
- break;
- }
-
- /* These should not occur - processed during pre-scanning */
- case FNT_DEF1: case FNT_DEF2: case FNT_DEF3: case FNT_DEF4:
- break;
-
- /* pTeX extension */
- case PTEXDIR:
- need_pTeX(opcode);
- do_dir();
- break;
-
- /* XeTeX extensions */
- case XDV_GLYPHS:
- need_XeTeX(opcode);
- do_glyphs(0);
- break;
- case XDV_TEXT_AND_GLYPHS:
- need_XeTeX(opcode);
- do_glyphs(1);
- break;
- /* should not occur - processed during pre-scanning */
- case XDV_NATIVE_FONT_DEF:
- need_XeTeX(opcode);
- break;
- case BEGIN_REFLECT:
- need_XeTeX(opcode);
- dvi_begin_reflect();
- break;
- case END_REFLECT:
- need_XeTeX(opcode);
- dvi_end_reflect();
- break;
-
- case POST:
- if (linear && !processing_page) {
- /* for linear processing, this means there are no more pages */
- num_pages = 0; /* force loop to terminate */
- return;
- }
- /* else fall through to error case */
- case PRE: case POST_POST:
- ERROR("Unexpected preamble or postamble in dvi file");
- break;
- default:
- ERROR("Unexpected opcode or DVI file ended prematurely");
- }
- }
-}
-
-double
-dvi_init (char *dvi_filename, double mag)
-{
- int32_t post_location;
-
- if (!dvi_filename) { /* no filename: reading from stdin, probably a pipe */
- int ch;
-#ifdef WIN32
- setmode(fileno(stdin), _O_BINARY);
-#endif
- dvi_file = stdin;
- linear = 1;
-
- get_preamble_dvi_info();
- do_scales(mag);
- if ((ch = get_unsigned_byte(dvi_file)) == POST)
- check_postamble();
- else
- ungetc(ch, dvi_file);
- } else {
- char *p, *saved_orig_name;
- dvi_file = NULL;
- saved_orig_name = xstrdup(dvi_filename);
- p = strrchr(dvi_filename, '.');
- if (p == NULL || (!FILESTRCASEEQ(p, ".dvi") &&
- !FILESTRCASEEQ(p, ".xdv"))) {
- strcat(dvi_filename, ".xdv");
- dvi_file = MFOPEN(dvi_filename, FOPEN_RBIN_MODE);
- if (!dvi_file) {
- dvi_filename[strlen(dvi_filename) - 4] = '\0';
- strcat(dvi_filename, ".dvi");
- dvi_file = MFOPEN(dvi_filename, FOPEN_RBIN_MODE);
- }
- }
- if (!dvi_file)
- dvi_file = MFOPEN(saved_orig_name, FOPEN_RBIN_MODE);
- free(saved_orig_name);
-
- if (!dvi_file) {
- ERROR("Could not open specified DVI (or XDV) file: %s",
- dvi_filename);
- return 0.0;
- }
-
- /* DVI files are most easily read backwards by
- * searching for post_post and then post opcode.
- */
- post_location = find_post();
- get_dvi_info(post_location);
- do_scales(mag);
- get_page_info(post_location);
- get_comment();
- get_dvi_fonts(post_location);
- }
- clear_state();
-
- dvi_page_buf_size = DVI_PAGE_BUF_CHUNK;
- dvi_page_buffer = NEW(dvi_page_buf_size, unsigned char);
-
- return dvi2pts;
-}
-
-void
-dvi_close (void)
-{
- int i;
-
- if (linear) {
- /* probably reading a pipe from xetex; consume any remaining data */
- while (fgetc(dvi_file) != EOF)
- ;
- }
-
- /* We add comment in dvi_close instead of dvi_init so user
- * has a change to overwrite it. The docinfo dictionary is
- * treated as a write-once record.
- */
-
- /* Do some house cleaning */
- MFCLOSE(dvi_file);
- dvi_file = NULL;
-
- if (def_fonts) {
- for (i = 0; i < num_def_fonts; i++) {
- if (def_fonts[i].font_name)
- RELEASE(def_fonts[i].font_name);
- def_fonts[i].font_name = NULL;
- }
- RELEASE(def_fonts);
- }
- def_fonts = NULL;
-
- if (page_loc)
- RELEASE(page_loc);
- page_loc = NULL;
- num_pages = 0;
-
- for (i = 0; i < num_loaded_fonts; i++)
- {
- if (loaded_fonts[i].gm != NULL)
- RELEASE(loaded_fonts[i].gm);
-
- loaded_fonts[i].gm = NULL;
- }
-
- if (loaded_fonts)
- RELEASE(loaded_fonts);
- loaded_fonts = NULL;
- num_loaded_fonts = 0;
-
- vf_close_all_fonts();
- tfm_close_all ();
-
- if (dvi_page_buffer) {
- RELEASE(dvi_page_buffer);
- dvi_page_buffer = NULL;
- dvi_page_buf_size = 0;
- }
-}
-
-/* The following are need to implement virtual fonts
- According to documentation, the vf "subroutine"
- must have state pushed and must have
- w,v,y, and z set to zero. The current font
- is determined by the virtual font header, which
- may be undefined */
-
-static int saved_dvi_font[VF_NESTING_MAX];
-static int num_saved_fonts = 0;
-
-void
-dvi_vf_init (int dev_font_id)
-{
- dvi_push();
-
- dvi_state.w = 0; dvi_state.x = 0;
- dvi_state.y = 0; dvi_state.z = 0;
-
- /* do not reset dvi_state.d. */
- if (num_saved_fonts < VF_NESTING_MAX) {
- saved_dvi_font[num_saved_fonts++] = current_font;
- } else
- ERROR("Virtual fonts nested too deeply!");
- current_font = dev_font_id;
-}
-
-/* After VF subroutine is finished, we simply pop the DVI stack */
-void
-dvi_vf_finish (void)
-{
- dvi_pop();
- if (num_saved_fonts > 0)
- current_font = saved_dvi_font[--num_saved_fonts];
- else {
- ERROR("Tried to pop an empty font stack");
- }
-}
-
-
-/* Scan various specials */
-#include "dpxutil.h"
-/* For MAX_PWD_LEN */
-#include "pdfencrypt.h"
-
-static int
-scan_special_encrypt (int *key_bits, int32_t *permission, char *opassword, char *upassword,
- const char **curptr, const char *endptr)
-{
- int error = 0;
- const char *p = *curptr;
-
- skip_white(&p, endptr);
-
- opassword[0] = '\0';
- upassword[0] = '\0';
- while (!error && p < endptr) {
- char *kp = parse_c_ident(&p, endptr);
- if (!kp)
- break;
- else {
- pdf_obj *obj;
- skip_white(&p, endptr);
- if (!strcmp(kp, "ownerpw")) {
- if ((obj = parse_pdf_string(&p, endptr))) {
- if (pdf_string_value(obj)) {
- int str_length = (MAX_PWD_LEN - 1 > pdf_string_length(obj)
- ? pdf_string_length(obj) : MAX_PWD_LEN - 1);
- strncpy(opassword, pdf_string_value(obj), str_length);
- opassword[str_length] = '\0';
- }
- pdf_release_obj(obj);
- } else
- error = -1;
- } else if (!strcmp(kp, "userpw")) {
- if ((obj = parse_pdf_string(&p, endptr))) {
- if (pdf_string_value(obj)) {
- int str_length = (MAX_PWD_LEN - 1 > pdf_string_length(obj)
- ? pdf_string_length(obj) : MAX_PWD_LEN - 1);
- strncpy(upassword, pdf_string_value(obj), str_length);
- upassword[str_length] = '\0';
- }
- pdf_release_obj(obj);
- } else
- error = -1;
- } else if (!strcmp(kp, "length")) {
- if ((obj = parse_pdf_number(&p, endptr)) && PDF_OBJ_NUMBERTYPE(obj)) {
- *key_bits = (unsigned) pdf_number_value(obj);
- } else
- error = -1;
- if (obj)
- pdf_release_obj(obj);
- } else if (!strcmp(kp, "perm")) {
- if ((obj = parse_pdf_number(&p, endptr)) && PDF_OBJ_NUMBERTYPE(obj)) {
- *permission = (unsigned) pdf_number_value(obj);
- } else
- error = -1;
- if (obj)
- pdf_release_obj(obj);
- } else
- error = -1;
- RELEASE(kp);
- }
- skip_white(&p, endptr);
- }
- *curptr = p;
-
- return error;
-}
-
-static int
-scan_special_trailerid (unsigned char *id1, unsigned char *id2,
- const char **curptr, const char *endptr)
-{
- int error = 0;
- pdf_obj *id_array;
- const char *p = *curptr;
-
- skip_white(&p, endptr);
- id_array = parse_pdf_array(&p, endptr, NULL);
- if (id_array) {
- if (pdf_array_length(id_array) == 2) {
- pdf_obj *tmp1, *tmp2;
- tmp1 = pdf_get_array(id_array, 0);
- tmp2 = pdf_get_array(id_array, 1);
- if (PDF_OBJ_STRINGTYPE(tmp1) && pdf_string_length(tmp1) == 16 &&
- PDF_OBJ_STRINGTYPE(tmp2) && pdf_string_length(tmp2) == 16) {
- memcpy(id1, pdf_string_value(tmp1), 16);
- memcpy(id2, pdf_string_value(tmp2), 16);
- } else {
- error = -1;
- }
- } else {
- error = -1;
- }
- pdf_release_obj(id_array);
- } else {
- error = -1;
- }
- skip_white(&p, endptr);
- *curptr = p;
-
- return error;
-}
-
-static int
-scan_special (double *wd, double *ht, double *xo, double *yo, int *lm,
- int *majorversion, int *minorversion,
- int *enable_encryption, int *key_bits, int32_t *permission,
- char *opassword, char *upassword,
- int *has_id, unsigned char *id1, unsigned char *id2,
- const char *buf, uint32_t size)
-{
- char *q;
- const char *p = buf, *endptr;
- int ns_pdf = 0, ns_dvipdfmx = 0, error = 0;
- double tmp;
-
- endptr = p + size;
-
- skip_white(&p, endptr);
-
- q = parse_c_ident(&p, endptr);
- if (q && !strcmp(q, "pdf")) {
- skip_white(&p, endptr);
- if (p < endptr && *p == ':') {
- p++;
- skip_white(&p, endptr);
- RELEASE(q);
- q = parse_c_ident(&p, endptr); ns_pdf = 1;
- }
- }
- else if (q && !strcmp(q, "x")) {
- skip_white(&p, endptr);
- if (p < endptr && *p == ':') {
- p++;
- skip_white(&p, endptr);
- RELEASE(q);
- q = parse_c_ident(&p, endptr);
- }
- }
- else if (q && !strcmp(q, "dvipdfmx")) {
- skip_white(&p, endptr);
- if (p < endptr && *p == ':') {
- p++;
- skip_white(&p, endptr);
- RELEASE(q);
- q = parse_c_ident(&p, endptr); ns_dvipdfmx = 1;
- }
- }
- skip_white(&p, endptr);
-
- if (q) {
- if (!strcmp(q, "landscape")) {
- *lm = 1;
- } else if (ns_pdf && !strcmp(q, "pagesize")) {
- while (!error && p < endptr) {
- char *kp = parse_c_ident(&p, endptr);
- if (!kp)
- break;
- else {
- skip_white(&p, endptr);
- if (!strcmp(kp, "width")) {
- error = dpx_util_read_length(&tmp, dvi_tell_mag(), &p, endptr);
- if (!error)
- *wd = tmp * dvi_tell_mag();
- } else if (!strcmp(kp, "height")) {
- error = dpx_util_read_length(&tmp, dvi_tell_mag(), &p, endptr);
- if (!error)
- *ht = tmp * dvi_tell_mag();
- } else if (!strcmp(kp, "xoffset")) {
- error = dpx_util_read_length(&tmp, dvi_tell_mag(), &p, endptr);
- if (!error)
- *xo = tmp * dvi_tell_mag();
- } else if (!strcmp(kp, "yoffset")) {
- error = dpx_util_read_length(&tmp, dvi_tell_mag(), &p, endptr);
- if (!error)
- *yo = tmp * dvi_tell_mag();
- } else if (!strcmp(kp, "default")) {
- *wd = paper_width;
- *ht = paper_height;
- *lm = landscape_mode;
- *xo = *yo = 72.0;
- }
- RELEASE(kp);
- }
- skip_white(&p, endptr);
- }
- } else if (!strcmp(q, "papersize")) {
- char qchr = 0;
- if (*p == '=') p++;
- skip_white(&p, endptr);
- if (p < endptr && (*p == '\'' || *p == '\"')) {
- qchr = *p; p++;
- skip_white(&p, endptr);
- }
- error = dpx_util_read_length(&tmp, 1.0, &p, endptr);
- if (!error) {
- double tmp1;
-
- skip_white(&p, endptr);
- if (p < endptr && *p == ',') {
- p++; skip_white(&p, endptr);
- }
- error = dpx_util_read_length(&tmp1, 1.0, &p, endptr);
- if (!error) {
- *wd = tmp;
- *ht = tmp1;
- skip_white(&p, endptr);
- }
- }
- if (!error && qchr) { /* Check if properly quoted */
- if (p >= endptr || *p != qchr)
- error = -1;
- }
- if (error == 0) {
- paper_width = *wd;
- paper_height = *ht;
- }
- } else if (minorversion && ns_pdf && !strcmp(q, "minorversion")) {
- char *kv;
- if (*p == '=') p++;
- skip_white(&p, endptr);
- kv = parse_float_decimal(&p, endptr);
- if (kv) {
- *minorversion = (int)strtol(kv, NULL, 10);
- RELEASE(kv);
- }
- } else if (majorversion && ns_pdf && !strcmp(q, "majorversion")) {
- char *kv;
- if (*p == '=') p++;
- skip_white(&p, endptr);
- kv = parse_float_decimal(&p, endptr);
- if (kv) {
- *majorversion = (int)strtol(kv, NULL, 10);
- RELEASE(kv);
- }
- } else if (enable_encryption && ns_pdf && !strcmp(q, "encrypt")) {
- *enable_encryption = 1;
- error = scan_special_encrypt(key_bits, permission, opassword, upassword, &p, endptr);
- } else if (ns_dvipdfmx && !strcmp(q, "config")) {
- read_config_special(&p, endptr);
- } else if (has_id && id1 && id2 && ns_pdf && !strcmp(q, "trailerid")) {
- error = scan_special_trailerid(id1, id2, &p, endptr);
- if (error) {
- WARN("Invalid argument for pdf:trailerid special.");
- *has_id = 0;
- } else {
- *has_id = 1;
- }
- }
- RELEASE(q);
- }
-
- return error;
-}
-
-
-void
-dvi_scan_specials (int page_no,
- double *page_width, double *page_height,
- double *x_offset, double *y_offset, int *landscape,
- int *majorversion, int *minorversion,
- int *do_enc, int *key_bits, int32_t *permission,
- char *owner_pw, char *user_pw,
- int *has_id, unsigned char *id1, unsigned char *id2)
-{
- FILE *fp = dvi_file;
- int32_t offset;
- unsigned char opcode;
- static int buffered_page = -1;
- unsigned int len;
-
- if (page_no == buffered_page || num_pages == 0)
- return; /* because dvipdfmx wants to scan first page twice! */
- buffered_page = page_no;
-
- dvi_page_buf_index = 0;
-
- if (!linear) {
- if (page_no >= num_pages)
- ERROR("Invalid page number: %u", page_no);
- offset = page_loc[page_no];
-
- xseek_absolute (fp, offset, "DVI");
- }
-
- while ((opcode = get_and_buffer_unsigned_byte(fp)) != EOP) {
- if (opcode <= SET_CHAR_127 ||
- (opcode >= FNT_NUM_0 && opcode <= FNT_NUM_63))
- continue;
- else if (opcode == XXX1 || opcode == XXX2 ||
- opcode == XXX3 || opcode == XXX4) {
- uint32_t size = get_and_buffer_unsigned_byte(fp);
- switch (opcode) {
- case XXX4: size = size * 0x100u + get_and_buffer_unsigned_byte(fp);
- if (size > 0x7fff)
- WARN("Unsigned number starting with %x exceeds 0x7fffffff", size);
- case XXX3: size = size * 0x100u + get_and_buffer_unsigned_byte(fp);
- case XXX2: size = size * 0x100u + get_and_buffer_unsigned_byte(fp);
- default: break;
- }
- if (dvi_page_buf_index + size >= dvi_page_buf_size) {
- dvi_page_buf_size = (dvi_page_buf_index + size + DVI_PAGE_BUF_CHUNK);
- dvi_page_buffer = RENEW(dvi_page_buffer, dvi_page_buf_size, unsigned char);
- }
-#define buf ((char*)(dvi_page_buffer + dvi_page_buf_index))
- if (fread(buf, sizeof(char), size, fp) != size)
- ERROR("Reading DVI file failed!");
- if (scan_special(page_width, page_height, x_offset, y_offset, landscape,
- majorversion, minorversion,
- do_enc, key_bits, permission, owner_pw, user_pw,
- has_id, id1, id2,
- buf, size))
- WARN("Reading special command failed: \"%.*s\"", size, buf);
-#undef buf
- dvi_page_buf_index += size;
- continue;
- }
-
- /* Skipping... */
- switch (opcode) {
- case BOP:
- get_and_buffer_bytes(fp, 44);
- break;
- case NOP: case PUSH: case POP:
- case W0: case X0: case Y0: case Z0:
- break;
- case SET1: case PUT1: case RIGHT1: case DOWN1:
- case W1: case X1: case Y1: case Z1: case FNT1:
- get_and_buffer_bytes(fp, 1);
- break;
-
- case SET2: case PUT2: case RIGHT2: case DOWN2:
- case W2: case X2: case Y2: case Z2: case FNT2:
- get_and_buffer_bytes(fp, 2);
- break;
-
- case SET3: case PUT3: case RIGHT3: case DOWN3:
- case W3: case X3: case Y3: case Z3: case FNT3:
- get_and_buffer_bytes(fp, 3);
- break;
-
- case SET4: case PUT4: case RIGHT4: case DOWN4:
- case W4: case X4: case Y4: case Z4: case FNT4:
- get_and_buffer_bytes(fp, 4);
- break;
-
- case SET_RULE: case PUT_RULE:
- get_and_buffer_bytes(fp, 8);
- break;
-
- case FNT_DEF1: case FNT_DEF2: case FNT_DEF3: case FNT_DEF4:
- do_fntdef(get_unsigned_num(fp, opcode-FNT_DEF1));
- break;
- case XDV_GLYPHS:
- need_XeTeX(opcode);
- get_and_buffer_bytes(fp, 4); /* width */
- len = get_and_buffer_unsigned_pair(fp); /* glyph count */
- get_and_buffer_bytes(fp, len * 10); /* 2 bytes ID + 8 bytes x,y-location per glyph */
- break;
- case XDV_TEXT_AND_GLYPHS:
- need_XeTeX(opcode);
- len = get_and_buffer_unsigned_pair(fp); /* utf16 code unit count */
- get_and_buffer_bytes(fp, len * 2); /* 2 bytes per code unit */
- get_and_buffer_bytes(fp, 4); /* width */
- len = get_and_buffer_unsigned_pair(fp); /* glyph count */
- get_and_buffer_bytes(fp, len * 10); /* 2 bytes ID + 8 bytes x,y-location per glyph */
- break;
- case XDV_NATIVE_FONT_DEF:
- need_XeTeX(opcode);
- do_native_font_def(get_signed_quad(dvi_file));
- break;
- case BEGIN_REFLECT:
- case END_REFLECT:
- need_XeTeX(opcode);
- break;
-
- case PTEXDIR:
- need_pTeX(opcode);
- get_and_buffer_bytes(fp, 1);
- break;
-
- case POST:
- if (linear && dvi_page_buf_index == 1) {
- /* this is actually an indication that we've reached the end of the input */
- return;
- }
- /* else fall through to error case */
- default: /* case PRE: case POST_POST: and others */
- ERROR("Unexpected opcode %d at pos=0x%x", opcode, tell_position(fp));
- break;
- }
- }
-
- return;
-}
-#if defined(LIBDPX)
-#include "dvi_ng.c"
-#endif /* LIBDPX */