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Merge pull request #15 from stephengaito/staticBuild

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Static build
Remove the FontForge and Poppler Cairo sources from the main pdf2htmlEX source tree.
Build both FontForge and Poppler statically and then link into pdf2htmlEX so there is no longer any need to locally install versions of FontForge or Poppler which are compatible with pdf2htmlEX (and so we reduce conflicts with any FontForge or Poppler libraries installed by the user).
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stephengaito 2020-05-29 19:45:31 +01:00 committed by GitHub
commit ece34e216f
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26 changed files with 85 additions and 6981 deletions
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5
buildScripts/buildFontforge
View File

@ -44,6 +44,11 @@ cd fontforge
--enable-python-scripting=3 \
--disable-dependency-tracking \
--disable-silent-rules \
--disable-python-scripting \
--disable-python-extension \
--disable-shared \
--enable-static \
--with-pic \
--without-x
# Apply any patches required for fontforge raw sources before we make

4
buildScripts/buildInstallLocallyApt
View File

@ -34,13 +34,13 @@ export PDF2HTMLEX_PREFIX=/usr/local
./buildScripts/buildPoppler || { echo 'buildPoppler FAILED' ; exit 1 ; }
./buildScripts/installPoppler || { echo 'installPoppler FAILED' ; exit 1 ; }
#./buildScripts/installPoppler || { echo 'installPoppler FAILED' ; exit 1 ; }
./buildScripts/getFontforge || { echo 'getFontforge FAILED' ; exit 1 ; }
./buildScripts/buildFontforge || { echo 'buildFontforge FAILED' ; exit 1 ; }
./buildScripts/installFontforge || { echo 'installFontforge FAILED' ; exit 1 ; }
#./buildScripts/installFontforge || { echo 'installFontforge FAILED' ; exit 1 ; }
./buildScripts/buildPdf2htmlEX || { echo 'buildPdf2htmlEX FAILED' ; exit 1 ; }

8
buildScripts/buildPoppler
View File

@ -11,6 +11,10 @@ echo ""
cd poppler
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$PDF2HTMLEX_PREFIX \
-DENABLE_LIBOPENJPEG=none ..
cmake \
-DCMAKE_BUILD_TYPE=Release \
-DBUILD_SHARED_LIBS:BOOL=OFF \
-DCMAKE_INSTALL_PREFIX=$PDF2HTMLEX_PREFIX \
-DENABLE_LIBOPENJPEG=none \
..
make $MAKE_PARALLEL

2
buildScripts/getPoppler
View File

@ -16,6 +16,8 @@ echo "Getting poppler version: $POPPLER_VERSION"
rm -rf $POPPLER_VERSION.tar.xz
rm -rf poppler
rm -rf poppler-data-0.4.9.tar.gz
rm -rf poppler-data
wget https://poppler.freedesktop.org/$POPPLER_VERSION.tar.xz

674
pdf2htmlEX/3rdparty/poppler/COPYING3 vendored
View File

@ -1,674 +0,0 @@
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PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
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 3 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, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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@ -1,856 +0,0 @@
//========================================================================
//
// CairoFontEngine.cc
//
// Copyright 2003 Glyph & Cog, LLC
// Copyright 2004 Red Hat, Inc
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005-2007 Jeff Muizelaar <jeff@infidigm.net>
// Copyright (C) 2005, 2006 Kristian Høgsberg <krh@redhat.com>
// Copyright (C) 2005 Martin Kretzschmar <martink@gnome.org>
// Copyright (C) 2005, 2009, 2012, 2013, 2015, 2017-2019 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2006, 2007, 2010, 2011 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2007 Koji Otani <sho@bbr.jp>
// Copyright (C) 2008, 2009 Chris Wilson <chris@chris-wilson.co.uk>
// Copyright (C) 2008, 2012, 2014, 2016, 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2009 Darren Kenny <darren.kenny@sun.com>
// Copyright (C) 2010 Suzuki Toshiya <mpsuzuki@hiroshima-u.ac.jp>
// Copyright (C) 2010 Jan Kümmel <jan+freedesktop@snorc.org>
// Copyright (C) 2012 Hib Eris <hib@hiberis.nl>
// Copyright (C) 2013 Thomas Freitag <Thomas.Freitag@alfa.de>
// Copyright (C) 2015, 2016 Jason Crain <jason@aquaticape.us>
// Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de>
// Copyright (C) 2019 Christian Persch <chpe@src.gnome.org>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#include <poppler-config.h>
#include <string.h>
#include "CairoFontEngine.h"
#include "CairoOutputDev.h"
#include "GlobalParams.h"
#include <fofi/FoFiTrueType.h>
#include <fofi/FoFiType1C.h>
#include "goo/gfile.h"
#include "Error.h"
#include "XRef.h"
#include "Gfx.h"
#include "Page.h"
#if defined(HAVE_FCNTL_H) && defined(HAVE_SYS_MMAN_H) && defined(HAVE_SYS_STAT_H)
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/mman.h>
#define CAN_CHECK_OPEN_FACES 1
#endif
//------------------------------------------------------------------------
// CairoFont
//------------------------------------------------------------------------
CairoFont::CairoFont(Ref refA,
cairo_font_face_t *cairo_font_faceA,
int *codeToGIDA,
unsigned int codeToGIDLenA,
bool substituteA,
bool printingA) : ref(refA),
cairo_font_face(cairo_font_faceA),
codeToGID(codeToGIDA),
codeToGIDLen(codeToGIDLenA),
substitute(substituteA),
printing(printingA) { }
CairoFont::~CairoFont() {
cairo_font_face_destroy (cairo_font_face);
gfree(codeToGID);
}
bool
CairoFont::matches(Ref &other, bool printingA) {
return (other == ref);
}
cairo_font_face_t *
CairoFont::getFontFace(void) {
return cairo_font_face;
}
unsigned long
CairoFont::getGlyph(CharCode code,
const Unicode *u, int uLen) {
FT_UInt gid;
if (codeToGID && code < codeToGIDLen) {
gid = (FT_UInt)codeToGID[code];
} else {
gid = (FT_UInt)code;
}
return gid;
}
double
CairoFont::getSubstitutionCorrection(GfxFont *gfxFont)
{
double w1, w2, w3;
CharCode code;
const char *name;
// for substituted fonts: adjust the font matrix -- compare the
// width of 'm' in the original font and the substituted font
if (isSubstitute() && !gfxFont->isCIDFont()) {
for (code = 0; code < 256; ++code) {
if ((name = ((Gfx8BitFont *)gfxFont)->getCharName(code)) &&
name[0] == 'm' && name[1] == '\0') {
break;
}
}
if (code < 256) {
w1 = ((Gfx8BitFont *)gfxFont)->getWidth(code);
{
cairo_matrix_t m;
cairo_matrix_init_identity(&m);
cairo_font_options_t *options = cairo_font_options_create();
cairo_font_options_set_hint_style(options, CAIRO_HINT_STYLE_NONE);
cairo_font_options_set_hint_metrics(options, CAIRO_HINT_METRICS_OFF);
cairo_scaled_font_t *scaled_font = cairo_scaled_font_create(cairo_font_face, &m, &m, options);
cairo_text_extents_t extents;
cairo_scaled_font_text_extents(scaled_font, "m", &extents);
cairo_scaled_font_destroy(scaled_font);
cairo_font_options_destroy(options);
w2 = extents.x_advance;
}
w3 = ((Gfx8BitFont *)gfxFont)->getWidth(0);
if (!gfxFont->isSymbolic() && w2 > 0 && w1 > w3) {
// if real font is substantially narrower than substituted
// font, reduce the font size accordingly
if (w1 > 0.01 && w1 < 0.9 * w2) {
w1 /= w2;
return w1;
}
}
}
}
return 1.0;
}
//------------------------------------------------------------------------
// CairoFreeTypeFont
//------------------------------------------------------------------------
static cairo_user_data_key_t _ft_cairo_key;
static void
_ft_done_face_uncached (void *closure)
{
FT_Face face = (FT_Face) closure;
FT_Done_Face (face);
}
static bool
_ft_new_face_uncached (FT_Library lib,
const char *filename,
char *font_data,
int font_data_len,
FT_Face *face_out,
cairo_font_face_t **font_face_out)
{
FT_Face face;
cairo_font_face_t *font_face;
if (font_data == nullptr) {
if (FT_New_Face (lib, filename, 0, &face))
return false;
} else {
if (FT_New_Memory_Face (lib, (unsigned char *)font_data, font_data_len, 0, &face))
return false;
}
font_face = cairo_ft_font_face_create_for_ft_face (face,
FT_LOAD_NO_HINTING |
FT_LOAD_NO_BITMAP);
if (cairo_font_face_set_user_data (font_face,
&_ft_cairo_key,
face,
_ft_done_face_uncached))
{
_ft_done_face_uncached (face);
cairo_font_face_destroy (font_face);
return false;
}
*face_out = face;
*font_face_out = font_face;
return true;
}
#ifdef CAN_CHECK_OPEN_FACES
static struct _ft_face_data {
struct _ft_face_data *prev, *next, **head;
int fd;
unsigned long hash;
size_t size;
unsigned char *bytes;
FT_Library lib;
FT_Face face;
cairo_font_face_t *font_face;
} *_ft_open_faces;
static unsigned long
_djb_hash (const unsigned char *bytes, size_t len)
{
unsigned long hash = 5381;
while (len--) {
unsigned char c = *bytes++;
hash *= 33;
hash ^= c;
}
return hash;
}
static bool
_ft_face_data_equal (struct _ft_face_data *a, struct _ft_face_data *b)
{
if (a->lib != b->lib)
return false;
if (a->size != b->size)
return false;
if (a->hash != b->hash)
return false;
return memcmp (a->bytes, b->bytes, a->size) == 0;
}
static void
_ft_done_face (void *closure)
{
struct _ft_face_data *data = (struct _ft_face_data *) closure;
if (data->next)
data->next->prev = data->prev;
if (data->prev)
data->prev->next = data->next;
else
_ft_open_faces = data->next;
if (data->fd != -1) {
#if defined(__SUNPRO_CC) && defined(__sun) && defined(__SVR4)
munmap ((char*)data->bytes, data->size);
#else
munmap (data->bytes, data->size);
#endif
close (data->fd);
} else {
gfree (data->bytes);
}
FT_Done_Face (data->face);
gfree (data);
}
static bool
_ft_new_face (FT_Library lib,
const char *filename,
char *font_data,
int font_data_len,
FT_Face *face_out,
cairo_font_face_t **font_face_out)
{
struct _ft_face_data *l;
struct stat st;
struct _ft_face_data tmpl;
tmpl.fd = -1;
if (font_data == nullptr) {
/* if we fail to mmap the file, just pass it to FreeType instead */
tmpl.fd = openFileDescriptor (filename, O_RDONLY);
if (tmpl.fd == -1)
return _ft_new_face_uncached (lib, filename, font_data, font_data_len, face_out, font_face_out);
if (fstat (tmpl.fd, &st) == -1) {
close (tmpl.fd);
return _ft_new_face_uncached (lib, filename, font_data, font_data_len, face_out, font_face_out);
}
tmpl.bytes = (unsigned char *) mmap (nullptr, st.st_size,
PROT_READ, MAP_PRIVATE,
tmpl.fd, 0);
if (tmpl.bytes == MAP_FAILED) {
close (tmpl.fd);
return _ft_new_face_uncached (lib, filename, font_data, font_data_len, face_out, font_face_out);
}
tmpl.size = st.st_size;
} else {
tmpl.bytes = (unsigned char*) font_data;
tmpl.size = font_data_len;
}
/* check to see if this is a duplicate of any of the currently open fonts */
tmpl.lib = lib;
tmpl.hash = _djb_hash (tmpl.bytes, tmpl.size);
for (l = _ft_open_faces; l; l = l->next) {
if (_ft_face_data_equal (l, &tmpl)) {
if (tmpl.fd != -1) {
#if defined(__SUNPRO_CC) && defined(__sun) && defined(__SVR4)
munmap ((char*)tmpl.bytes, tmpl.size);
#else
munmap (tmpl.bytes, tmpl.size);
#endif
close (tmpl.fd);
} else {
gfree (tmpl.bytes);
}
*face_out = l->face;
*font_face_out = cairo_font_face_reference (l->font_face);
return true;
}
}
/* not a dup, open and insert into list */
if (FT_New_Memory_Face (lib,
(FT_Byte *) tmpl.bytes, tmpl.size,
0, &tmpl.face))
{
if (tmpl.fd != -1) {
#if defined(__SUNPRO_CC) && defined(__sun) && defined(__SVR4)
munmap ((char*)tmpl.bytes, tmpl.size);
#else
munmap (tmpl.bytes, tmpl.size);
#endif
close (tmpl.fd);
}
return false;
}
l = (struct _ft_face_data *) gmallocn (1, sizeof (struct _ft_face_data));
*l = tmpl;
l->prev = nullptr;
l->next = _ft_open_faces;
if (_ft_open_faces)
_ft_open_faces->prev = l;
_ft_open_faces = l;
l->font_face = cairo_ft_font_face_create_for_ft_face (tmpl.face,
FT_LOAD_NO_HINTING |
FT_LOAD_NO_BITMAP);
if (cairo_font_face_set_user_data (l->font_face,
&_ft_cairo_key,
l,
_ft_done_face))
{
cairo_font_face_destroy (l->font_face);
_ft_done_face (l);
return false;
}
*face_out = l->face;
*font_face_out = l->font_face;
return true;
}
#else
#define _ft_new_face _ft_new_face_uncached
#endif
CairoFreeTypeFont::CairoFreeTypeFont(Ref refA,
cairo_font_face_t *cairo_font_faceA,
int *codeToGIDA,
unsigned int codeToGIDLenA,
bool substituteA) : CairoFont(refA,
cairo_font_faceA,
codeToGIDA,
codeToGIDLenA,
substituteA,
true) { }
CairoFreeTypeFont::~CairoFreeTypeFont() { }
CairoFreeTypeFont *CairoFreeTypeFont::create(GfxFont *gfxFont, XRef *xref,
FT_Library lib, bool useCIDs) {
GooString *fileName;
const char *fileNameC;
char *font_data;
int font_data_len;
int i, n;
GfxFontType fontType;
GfxFontLoc *fontLoc;
char **enc;
const char *name;
FoFiTrueType *ff;
FoFiType1C *ff1c;
Ref ref;
FT_Face face;
cairo_font_face_t *font_face;
int *codeToGID;
unsigned int codeToGIDLen;
codeToGID = nullptr;
codeToGIDLen = 0;
font_data = nullptr;
font_data_len = 0;
fileName = nullptr;
fileNameC = nullptr;
bool substitute = false;
ref = *gfxFont->getID();
fontType = gfxFont->getType();
if (!(fontLoc = gfxFont->locateFont(xref, nullptr))) {
error(errSyntaxError, -1, "Couldn't find a font for '{0:s}'",
gfxFont->getName() ? gfxFont->getName()->c_str()
: "(unnamed)");
goto err2;
}
// embedded font
if (fontLoc->locType == gfxFontLocEmbedded) {
font_data = gfxFont->readEmbFontFile(xref, &font_data_len);
if (nullptr == font_data)
goto err2;
// external font
} else { // gfxFontLocExternal
fileName = fontLoc->path;
fontType = fontLoc->fontType;
substitute = true;
}
if (fileName != nullptr) {
fileNameC = fileName->c_str();
}
switch (fontType) {
case fontType1:
case fontType1C:
case fontType1COT:
if (! _ft_new_face (lib, fileNameC, font_data, font_data_len, &face, &font_face)) {
error(errSyntaxError, -1, "could not create type1 face");
goto err2;
}
enc = ((Gfx8BitFont *)gfxFont)->getEncoding();
codeToGID = (int *)gmallocn(256, sizeof(int));
codeToGIDLen = 256;
for (i = 0; i < 256; ++i) {
codeToGID[i] = 0;
if ((name = enc[i])) {
codeToGID[i] = FT_Get_Name_Index(face, (char*)name);
if (codeToGID[i] == 0) {
Unicode u;
u = globalParams->mapNameToUnicodeText (name);
codeToGID[i] = FT_Get_Char_Index (face, u);
}
if (codeToGID[i] == 0) {
name = GfxFont::getAlternateName(name);
if (name) {
codeToGID[i] = FT_Get_Name_Index(face, (char*)name);
}
}
}
}
break;
case fontCIDType2:
case fontCIDType2OT:
codeToGID = nullptr;
n = 0;
if (((GfxCIDFont *)gfxFont)->getCIDToGID()) {
n = ((GfxCIDFont *)gfxFont)->getCIDToGIDLen();
if (n) {
codeToGID = (int *)gmallocn(n, sizeof(int));
memcpy(codeToGID, ((GfxCIDFont *)gfxFont)->getCIDToGID(),
n * sizeof(int));
}
} else {
if (font_data != nullptr) {
ff = FoFiTrueType::make(font_data, font_data_len);
} else {
ff = FoFiTrueType::load(fileNameC);
}
if (! ff)
goto err2;
codeToGID = ((GfxCIDFont *)gfxFont)->getCodeToGIDMap(ff, &n);
delete ff;
}
codeToGIDLen = n;
/* Fall through */
case fontTrueType:
case fontTrueTypeOT:
if (font_data != nullptr) {
ff = FoFiTrueType::make(font_data, font_data_len);
} else {
ff = FoFiTrueType::load(fileNameC);
}
if (! ff) {
error(errSyntaxError, -1, "failed to load truetype font\n");
goto err2;
}
/* This might be set already for the CIDType2 case */
if (fontType == fontTrueType || fontType == fontTrueTypeOT) {
codeToGID = ((Gfx8BitFont *)gfxFont)->getCodeToGIDMap(ff);
codeToGIDLen = 256;
}
delete ff;
if (! _ft_new_face (lib, fileNameC, font_data, font_data_len, &face, &font_face)) {
error(errSyntaxError, -1, "could not create truetype face\n");
goto err2;
}
break;
case fontCIDType0:
case fontCIDType0C:
codeToGID = nullptr;
codeToGIDLen = 0;
if (!useCIDs)
{
if (font_data != nullptr) {
ff1c = FoFiType1C::make(font_data, font_data_len);
} else {
ff1c = FoFiType1C::load(fileNameC);
}
if (ff1c) {
codeToGID = ff1c->getCIDToGIDMap((int *)&codeToGIDLen);
delete ff1c;
}
}
if (! _ft_new_face (lib, fileNameC, font_data, font_data_len, &face, &font_face)) {
error(errSyntaxError, -1, "could not create cid face\n");
goto err2;
}
break;
case fontCIDType0COT:
codeToGID = nullptr;
n = 0;
if (((GfxCIDFont *)gfxFont)->getCIDToGID()) {
n = ((GfxCIDFont *)gfxFont)->getCIDToGIDLen();
if (n) {
codeToGID = (int *)gmallocn(n, sizeof(int));
memcpy(codeToGID, ((GfxCIDFont *)gfxFont)->getCIDToGID(),
n * sizeof(int));
}
}
codeToGIDLen = n;
if (!codeToGID) {
if (!useCIDs) {
if (font_data != nullptr) {
ff = FoFiTrueType::make(font_data, font_data_len);
} else {
ff = FoFiTrueType::load(fileNameC);
}
if (ff) {
if (ff->isOpenTypeCFF()) {
codeToGID = ff->getCIDToGIDMap((int *)&codeToGIDLen);
}
delete ff;
}
}
}
if (! _ft_new_face (lib, fileNameC, font_data, font_data_len, &face, &font_face)) {
error(errSyntaxError, -1, "could not create cid (OT) face\n");
goto err2;
}
break;
default:
fprintf (stderr, "font type %d not handled\n", (int)fontType);
goto err2;
break;
}
delete fontLoc;
return new CairoFreeTypeFont(ref,
font_face,
codeToGID, codeToGIDLen,
substitute);
err2:
/* hmm? */
delete fontLoc;
gfree (codeToGID);
gfree (font_data);
fprintf (stderr, "some font thing failed\n");
return nullptr;
}
//------------------------------------------------------------------------
// CairoType3Font
//------------------------------------------------------------------------
static const cairo_user_data_key_t type3_font_key = {0};
typedef struct _type3_font_info {
GfxFont *font;
PDFDoc *doc;
CairoFontEngine *fontEngine;
bool printing;
XRef *xref;
} type3_font_info_t;
static void
_free_type3_font_info(void *closure)
{
type3_font_info_t *info = (type3_font_info_t *) closure;
info->font->decRefCnt();
free (info);
}
static cairo_status_t
_init_type3_glyph (cairo_scaled_font_t *scaled_font,
cairo_t *cr,
cairo_font_extents_t *extents)
{
type3_font_info_t *info;
GfxFont *font;
info = (type3_font_info_t *)
cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font),
&type3_font_key);
font = info->font;
const double *mat = font->getFontBBox();
extents->ascent = mat[3]; /* y2 */
extents->descent = -mat[3]; /* -y1 */
extents->height = extents->ascent + extents->descent;
extents->max_x_advance = mat[2] - mat[1]; /* x2 - x1 */
extents->max_y_advance = 0;
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_render_type3_glyph (cairo_scaled_font_t *scaled_font,
unsigned long glyph,
cairo_t *cr,
cairo_text_extents_t *metrics)
{
Dict *charProcs;
Object charProc;
CairoOutputDev *output_dev;
cairo_matrix_t matrix, invert_y_axis;
const double *mat;
double wx, wy;
PDFRectangle box;
type3_font_info_t *info;
GfxFont *font;
Dict *resDict;
Gfx *gfx;
info = (type3_font_info_t *)
cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font),
&type3_font_key);
font = info->font;
resDict = ((Gfx8BitFont *)font)->getResources();
charProcs = ((Gfx8BitFont *)(info->font))->getCharProcs();
if (!charProcs)
return CAIRO_STATUS_USER_FONT_ERROR;
if ((int)glyph >= charProcs->getLength())
return CAIRO_STATUS_USER_FONT_ERROR;
mat = font->getFontMatrix();
matrix.xx = mat[0];
matrix.yx = mat[1];
matrix.xy = mat[2];
matrix.yy = mat[3];
matrix.x0 = mat[4];
matrix.y0 = mat[5];
cairo_matrix_init_scale (&invert_y_axis, 1, -1);
cairo_matrix_multiply (&matrix, &matrix, &invert_y_axis);
cairo_transform (cr, &matrix);
output_dev = new CairoOutputDev();
output_dev->setCairo(cr);
output_dev->setPrinting(info->printing);
mat = font->getFontBBox();
box.x1 = mat[0];
box.y1 = mat[1];
box.x2 = mat[2];
box.y2 = mat[3];
gfx = new Gfx(info->doc, output_dev, resDict, &box, nullptr);
output_dev->startDoc(info->doc, info->fontEngine);
output_dev->startPage (1, gfx->getState(), gfx->getXRef());
output_dev->setInType3Char(true);
charProc = charProcs->getVal(glyph);
gfx->display(&charProc);
output_dev->getType3GlyphWidth (&wx, &wy);
cairo_matrix_transform_distance (&matrix, &wx, &wy);
metrics->x_advance = wx;
metrics->y_advance = wy;
if (output_dev->hasType3GlyphBBox()) {
double *bbox = output_dev->getType3GlyphBBox();
cairo_matrix_transform_point (&matrix, &bbox[0], &bbox[1]);
cairo_matrix_transform_point (&matrix, &bbox[2], &bbox[3]);
metrics->x_bearing = bbox[0];
metrics->y_bearing = bbox[1];
metrics->width = bbox[2] - bbox[0];
metrics->height = bbox[3] - bbox[1];
}
delete gfx;
delete output_dev;
return CAIRO_STATUS_SUCCESS;
}
CairoType3Font *CairoType3Font::create(GfxFont *gfxFont, PDFDoc *doc,
CairoFontEngine *fontEngine,
bool printing, XRef *xref) {
type3_font_info_t *info;
cairo_font_face_t *font_face;
Ref ref;
int *codeToGID;
unsigned int codeToGIDLen;
int i, j;
char **enc;
Dict *charProcs;
char *name;
charProcs = ((Gfx8BitFont *)gfxFont)->getCharProcs();
info = (type3_font_info_t *) malloc(sizeof(*info));
ref = *gfxFont->getID();
font_face = cairo_user_font_face_create();
cairo_user_font_face_set_init_func (font_face, _init_type3_glyph);
cairo_user_font_face_set_render_glyph_func (font_face, _render_type3_glyph);
gfxFont->incRefCnt();
info->font = gfxFont;
info->doc = doc;
info->fontEngine = fontEngine;
info->printing = printing;
info->xref = xref;
cairo_font_face_set_user_data (font_face, &type3_font_key, (void *) info, _free_type3_font_info);
enc = ((Gfx8BitFont *)gfxFont)->getEncoding();
codeToGID = (int *)gmallocn(256, sizeof(int));
codeToGIDLen = 256;
for (i = 0; i < 256; ++i) {
codeToGID[i] = 0;
if (charProcs && (name = enc[i])) {
for (j = 0; j < charProcs->getLength(); j++) {
if (strcmp(name, charProcs->getKey(j)) == 0) {
codeToGID[i] = j;
}
}
}
}
return new CairoType3Font(ref, font_face, codeToGID, codeToGIDLen, printing, xref);
}
CairoType3Font::CairoType3Font(Ref refA,
cairo_font_face_t *cairo_font_faceA,
int *codeToGIDA,
unsigned int codeToGIDLenA,
bool printingA, XRef *xref) : CairoFont(refA,
cairo_font_faceA,
codeToGIDA,
codeToGIDLenA,
false,
printingA)
{ }
CairoType3Font::~CairoType3Font() { }
bool
CairoType3Font::matches(Ref &other, bool printingA) {
return (other == ref && printing == printingA);
}
//------------------------------------------------------------------------
// CairoFontEngine
//------------------------------------------------------------------------
#define fontEngineLocker() std::unique_lock<std::recursive_mutex> locker(mutex)
CairoFontEngine::CairoFontEngine(FT_Library libA) {
int i;
lib = libA;
for (i = 0; i < cairoFontCacheSize; ++i) {
fontCache[i] = nullptr;
}
FT_Int major, minor, patch;
// as of FT 2.1.8, CID fonts are indexed by CID instead of GID
FT_Library_Version(lib, &major, &minor, &patch);
useCIDs = major > 2 ||
(major == 2 && (minor > 1 || (minor == 1 && patch > 7)));
}
CairoFontEngine::~CairoFontEngine() {
int i;
for (i = 0; i < cairoFontCacheSize; ++i) {
if (fontCache[i])
delete fontCache[i];
}
}
CairoFont *
CairoFontEngine::getFont(GfxFont *gfxFont, PDFDoc *doc, bool printing, XRef *xref) {
int i, j;
Ref ref;
CairoFont *font;
GfxFontType fontType;
fontEngineLocker();
ref = *gfxFont->getID();
for (i = 0; i < cairoFontCacheSize; ++i) {
font = fontCache[i];
if (font && font->matches(ref, printing)) {
for (j = i; j > 0; --j) {
fontCache[j] = fontCache[j-1];
}
fontCache[0] = font;
return font;
}
}
fontType = gfxFont->getType();
if (fontType == fontType3)
font = CairoType3Font::create (gfxFont, doc, this, printing, xref);
else
font = CairoFreeTypeFont::create (gfxFont, xref, lib, useCIDs);
//XXX: if font is null should we still insert it into the cache?
if (fontCache[cairoFontCacheSize - 1]) {
delete fontCache[cairoFontCacheSize - 1];
}
for (j = cairoFontCacheSize - 1; j > 0; --j) {
fontCache[j] = fontCache[j-1];
}
fontCache[0] = font;
return font;
}

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//========================================================================
//
// CairoFontEngine.h
//
// Copyright 2003 Glyph & Cog, LLC
// Copyright 2004 Red Hat, Inc
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005, 2006 Kristian Høgsberg <krh@redhat.com>
// Copyright (C) 2005, 2018, 2019 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2006, 2007 Jeff Muizelaar <jeff@infidigm.net>
// Copyright (C) 2006, 2010 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2008, 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2013 Thomas Freitag <Thomas.Freitag@alfa.de>
// Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#ifndef CAIROFONTENGINE_H
#define CAIROFONTENGINE_H
#include <mutex>
#include "poppler-config.h"
#include <cairo-ft.h>
#include "GfxFont.h"
#include "PDFDoc.h"
class CairoFontEngine;
class CairoFont {
public:
CairoFont(Ref ref,
cairo_font_face_t *face,
int *codeToGID,
unsigned int codeToGIDLen,
bool substitute,
bool printing);
virtual ~CairoFont();
CairoFont(const CairoFont &) = delete;
CairoFont& operator=(const CairoFont &other) = delete;
virtual bool matches(Ref &other, bool printing);
cairo_font_face_t *getFontFace(void);
unsigned long getGlyph(CharCode code, const Unicode *u, int uLen);
double getSubstitutionCorrection(GfxFont *gfxFont);
bool isSubstitute() { return substitute; }
protected:
Ref ref;
cairo_font_face_t *cairo_font_face;
int *codeToGID;
unsigned int codeToGIDLen;
bool substitute;
bool printing;
};
//------------------------------------------------------------------------
class CairoFreeTypeFont : public CairoFont {
public:
static CairoFreeTypeFont *create(GfxFont *gfxFont, XRef *xref, FT_Library lib, bool useCIDs);
~CairoFreeTypeFont();
private:
CairoFreeTypeFont(Ref ref, cairo_font_face_t *cairo_font_face,
int *codeToGID, unsigned int codeToGIDLen, bool substitute);
};
//------------------------------------------------------------------------
class CairoType3Font : public CairoFont {
public:
static CairoType3Font *create(GfxFont *gfxFont, PDFDoc *doc,
CairoFontEngine *fontEngine,
bool printing, XRef *xref);
~CairoType3Font();
bool matches(Ref &other, bool printing) override;
private:
CairoType3Font(Ref ref,
cairo_font_face_t *cairo_font_face,
int *codeToGID, unsigned int codeToGIDLen,
bool printing, XRef *xref);
};
//------------------------------------------------------------------------
#define cairoFontCacheSize 64
//------------------------------------------------------------------------
// CairoFontEngine
//------------------------------------------------------------------------
class CairoFontEngine {
public:
// Create a font engine.
CairoFontEngine(FT_Library libA);
~CairoFontEngine();
CairoFontEngine(const CairoFontEngine &) = delete;
CairoFontEngine& operator=(const CairoFontEngine &other) = delete;
CairoFont *getFont(GfxFont *gfxFont, PDFDoc *doc, bool printing, XRef *xref);
private:
CairoFont *fontCache[cairoFontCacheSize];
FT_Library lib;
bool useCIDs;
mutable std::recursive_mutex mutex;
};
#endif

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//========================================================================
//
// CairoOutputDev.h
//
// Copyright 2003 Glyph & Cog, LLC
// Copyright 2004 Red Hat, INC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005-2008 Jeff Muizelaar <jeff@infidigm.net>
// Copyright (C) 2005, 2006 Kristian Høgsberg <krh@redhat.com>
// Copyright (C) 2005 Nickolay V. Shmyrev <nshmyrev@yandex.ru>
// Copyright (C) 2006-2011, 2013 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2008, 2009, 2011-2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2008 Michael Vrable <mvrable@cs.ucsd.edu>
// Copyright (C) 2010-2013 Thomas Freitag <Thomas.Freitag@alfa.de>
// Copyright (C) 2015 Suzuki Toshiya <mpsuzuki@hiroshima-u.ac.jp>
// Copyright (C) 2016 Jason Crain <jason@aquaticape.us>
// Copyright (C) 2018, 2019 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, <info@kdab.com>. Work sponsored by the LiMux project of the city of Munich
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#ifndef CAIROOUTPUTDEV_H
#define CAIROOUTPUTDEV_H
#include <cairo-ft.h>
#include "OutputDev.h"
#include "TextOutputDev.h"
#include "GfxState.h"
class PDFDoc;
class GfxState;
class GfxPath;
class Gfx8BitFont;
struct GfxRGB;
class CairoFontEngine;
class CairoFont;
//------------------------------------------------------------------------
//------------------------------------------------------------------------
// CairoImage
//------------------------------------------------------------------------
class CairoImage {
public:
// Constructor.
CairoImage (double x1, double y1, double x2, double y2);
// Destructor.
~CairoImage ();
CairoImage(const CairoImage &) = delete;
CairoImage& operator=(const CairoImage &) = delete;
// Set the image cairo surface
void setImage (cairo_surface_t *image);
// Get the image cairo surface
cairo_surface_t *getImage () const { return image; }
// Get the image rectangle
void getRect (double *xa1, double *ya1, double *xa2, double *ya2)
{ *xa1 = x1; *ya1 = y1; *xa2 = x2; *ya2 = y2; }
private:
cairo_surface_t *image; // image cairo surface
double x1, y1; // upper left corner
double x2, y2; // lower right corner
};
//------------------------------------------------------------------------
// CairoOutputDev
//------------------------------------------------------------------------
class CairoOutputDev: public OutputDev {
public:
// Constructor.
CairoOutputDev();
// Destructor.
virtual ~CairoOutputDev();
//----- get info about output device
// Does this device use upside-down coordinates?
// (Upside-down means (0,0) is the top left corner of the page.)
bool upsideDown() override { return true; }
// Does this device use drawChar() or drawString()?
bool useDrawChar() override { return true; }
// Does this device use tilingPatternFill()? If this returns false,
// tiling pattern fills will be reduced to a series of other drawing
// operations.
bool useTilingPatternFill() override { return true; }
// Does this device use functionShadedFill(), axialShadedFill(), and
// radialShadedFill()? If this returns false, these shaded fills
// will be reduced to a series of other drawing operations.
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 12, 0)
bool useShadedFills(int type) override { return type <= 7; }
#else
bool useShadedFills(int type) override { return type > 1 && type < 4; }
#endif
// Does this device use FillColorStop()?
bool useFillColorStop() override { return true; }
// Does this device use beginType3Char/endType3Char? Otherwise,
// text in Type 3 fonts will be drawn with drawChar/drawString.
bool interpretType3Chars() override { return false; }
// Does this device need to clip pages to the crop box even when the
// box is the crop box?
bool needClipToCropBox() override { return true; }
//----- initialization and control
// Start a page.
void startPage(int pageNum, GfxState *state, XRef *xref) override;
// End a page.
void endPage() override;
//----- save/restore graphics state
void saveState(GfxState *state) override;
void restoreState(GfxState *state) override;
//----- update graphics state
void updateAll(GfxState *state) override;
void setDefaultCTM(const double *ctm) override;
void updateCTM(GfxState *state, double m11, double m12,
double m21, double m22, double m31, double m32) override;
void updateLineDash(GfxState *state) override;
void updateFlatness(GfxState *state) override;
void updateLineJoin(GfxState *state) override;
void updateLineCap(GfxState *state) override;
void updateMiterLimit(GfxState *state) override;
void updateLineWidth(GfxState *state) override;
void updateFillColor(GfxState *state) override;
void updateStrokeColor(GfxState *state) override;
void updateFillOpacity(GfxState *state) override;
void updateStrokeOpacity(GfxState *state) override;
void updateFillColorStop(GfxState *state, double offset) override;
void updateBlendMode(GfxState *state) override;
//----- update text state
void updateFont(GfxState *state) override;
//----- path painting
void stroke(GfxState *state) override;
void fill(GfxState *state) override;
void eoFill(GfxState *state) override;
void clipToStrokePath(GfxState *state) override;
bool tilingPatternFill(GfxState *state, Gfx *gfx, Catalog *cat, Object *str,
const double *pmat, int paintType, int tilingType, Dict *resDict,
const double *mat, const double *bbox,
int x0, int y0, int x1, int y1,
double xStep, double yStep) override;
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 12, 0)
bool functionShadedFill(GfxState *state, GfxFunctionShading *shading) override;
#endif
bool axialShadedFill(GfxState *state, GfxAxialShading *shading, double tMin, double tMax) override;
bool axialShadedSupportExtend(GfxState *state, GfxAxialShading *shading) override;
bool radialShadedFill(GfxState *state, GfxRadialShading *shading, double sMin, double sMax) override;
bool radialShadedSupportExtend(GfxState *state, GfxRadialShading *shading) override;
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 12, 0)
bool gouraudTriangleShadedFill(GfxState *state, GfxGouraudTriangleShading *shading) override;
bool patchMeshShadedFill(GfxState *state, GfxPatchMeshShading *shading) override;
#endif
//----- path clipping
void clip(GfxState *state) override;
void eoClip(GfxState *state) override;
//----- text drawing
void beginString(GfxState *state, const GooString *s) override;
void endString(GfxState *state) override;
void drawChar(GfxState *state, double x, double y,
double dx, double dy,
double originX, double originY,
CharCode code, int nBytes, const Unicode *u, int uLen) override;
void beginActualText(GfxState *state, const GooString *text) override;
void endActualText(GfxState *state) override;
bool beginType3Char(GfxState *state, double x, double y,
double dx, double dy,
CharCode code, const Unicode *u, int uLen) override;
void endType3Char(GfxState *state) override;
void beginTextObject(GfxState *state) override;
void endTextObject(GfxState *state) override;
//----- image drawing
void drawImageMask(GfxState *state, Object *ref, Stream *str,
int width, int height, bool invert, bool interpolate,
bool inlineImg) override;
void setSoftMaskFromImageMask(GfxState *state,
Object *ref, Stream *str,
int width, int height, bool invert,
bool inlineImg, double *baseMatrix) override;
void unsetSoftMaskFromImageMask(GfxState *state, double *baseMatrix) override;
void drawImageMaskPrescaled(GfxState *state, Object *ref, Stream *str,
int width, int height, bool invert, bool interpolate,
bool inlineImg);
void drawImageMaskRegular(GfxState *state, Object *ref, Stream *str,
int width, int height, bool invert, bool interpolate,
bool inlineImg);
void drawImage(GfxState *state, Object *ref, Stream *str,
int width, int height, GfxImageColorMap *colorMap,
bool interpolate, const int *maskColors, bool inlineImg) override;
void drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str,
int width, int height,
GfxImageColorMap *colorMap,
bool interpolate,
Stream *maskStr,
int maskWidth, int maskHeight,
GfxImageColorMap *maskColorMap,
bool maskInterpolate) override;
void drawMaskedImage(GfxState *state, Object *ref, Stream *str,
int width, int height,
GfxImageColorMap *colorMap,
bool interpolate,
Stream *maskStr,
int maskWidth, int maskHeight,
bool maskInvert, bool maskInterpolate) override;
//----- transparency groups and soft masks
void beginTransparencyGroup(GfxState * /*state*/, const double * /*bbox*/,
GfxColorSpace * /*blendingColorSpace*/,
bool /*isolated*/, bool /*knockout*/,
bool /*forSoftMask*/) override;
void endTransparencyGroup(GfxState * /*state*/) override;
void popTransparencyGroup();
void paintTransparencyGroup(GfxState * /*state*/, const double * /*bbox*/) override;
void setSoftMask(GfxState * /*state*/, const double * /*bbox*/, bool /*alpha*/,
Function * /*transferFunc*/, GfxColor * /*backdropColor*/) override;
void clearSoftMask(GfxState * /*state*/) override;
//----- Type 3 font operators
void type3D0(GfxState *state, double wx, double wy) override;
void type3D1(GfxState *state, double wx, double wy,
double llx, double lly, double urx, double ury) override;
//----- special access
// Called to indicate that a new PDF document has been loaded.
void startDoc(PDFDoc *docA, CairoFontEngine *fontEngine = nullptr);
bool isReverseVideo() { return false; }
void setCairo (cairo_t *cr);
void setTextPage (TextPage *text);
void setPrinting (bool printingA) { printing = printingA; needFontUpdate = true; }
void setAntialias(cairo_antialias_t antialias);
void setInType3Char(bool inType3CharA) { inType3Char = inType3CharA; }
void getType3GlyphWidth (double *wx, double *wy) { *wx = t3_glyph_wx; *wy = t3_glyph_wy; }
bool hasType3GlyphBBox () { return t3_glyph_has_bbox; }
double *getType3GlyphBBox () { return t3_glyph_bbox; }
protected:
void doPath(cairo_t *cairo, GfxState *state, const GfxPath *path);
cairo_surface_t *downscaleSurface(cairo_surface_t *orig_surface);
void getScaledSize(const cairo_matrix_t *matrix,
int orig_width, int orig_height,
int *scaledWidth, int *scaledHeight);
cairo_filter_t getFilterForSurface(cairo_surface_t *image,
bool interpolate);
bool getStreamData (Stream *str, char **buffer, int *length);
void setMimeData(GfxState *state, Stream *str, Object *ref,
GfxImageColorMap *colorMap, cairo_surface_t *image, int height);
void fillToStrokePathClip(GfxState *state);
void alignStrokeCoords(const GfxSubpath *subpath, int i, double *x, double *y);
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 14, 0)
bool setMimeDataForJBIG2Globals (Stream *str, cairo_surface_t *image);
#endif
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 15, 10)
bool setMimeDataForCCITTParams(Stream *str, cairo_surface_t *image, int height);
#endif
static void setContextAntialias(cairo_t *cr, cairo_antialias_t antialias);
GfxRGB fill_color, stroke_color;
cairo_pattern_t *fill_pattern, *stroke_pattern;
double fill_opacity;
double stroke_opacity;
bool stroke_adjust;
bool adjusted_stroke_width;
bool align_stroke_coords;
CairoFont *currentFont;
XRef *xref;
struct StrokePathClip {
GfxPath *path;
cairo_matrix_t ctm;
double line_width;
double *dashes;
int dash_count;
double dash_offset;
cairo_line_cap_t cap;
cairo_line_join_t join;
double miter;
int ref_count;
} *strokePathClip;
PDFDoc *doc; // the current document
static FT_Library ft_lib;
static bool ft_lib_initialized;
CairoFontEngine *fontEngine;
bool fontEngine_owner;
cairo_t *cairo;
cairo_matrix_t orig_matrix;
bool needFontUpdate; // set when the font needs to be updated
bool printing;
bool use_show_text_glyphs;
bool text_matrix_valid;
cairo_glyph_t *glyphs;
int glyphCount;
cairo_text_cluster_t *clusters;
int clusterCount;
char *utf8;
int utf8Count;
int utf8Max;
cairo_path_t *textClipPath;
bool inUncoloredPattern; // inside a uncolored pattern (PaintType = 2)
bool inType3Char; // inside a Type 3 CharProc
double t3_glyph_wx, t3_glyph_wy;
bool t3_glyph_has_bbox;
double t3_glyph_bbox[4];
cairo_antialias_t antialias;
bool prescaleImages;
TextPage *textPage; // text for the current page
ActualText *actualText;
cairo_pattern_t *group;
cairo_pattern_t *shape;
cairo_pattern_t *mask;
cairo_matrix_t mask_matrix;
cairo_t *cairo_shape;
int knockoutCount;
struct ColorSpaceStack {
bool knockout;
GfxColorSpace *cs;
cairo_matrix_t group_matrix;
struct ColorSpaceStack *next;
} * groupColorSpaceStack;
struct MaskStack {
cairo_pattern_t *mask;
cairo_matrix_t mask_matrix;
struct MaskStack *next;
} *maskStack;
};
//------------------------------------------------------------------------
// CairoImageOutputDev
//------------------------------------------------------------------------
//XXX: this should ideally not inherit from CairoOutputDev but use it instead perhaps
class CairoImageOutputDev: public CairoOutputDev {
public:
// Constructor.
CairoImageOutputDev();
// Destructor.
virtual ~CairoImageOutputDev();
//----- get info about output device
// Does this device use upside-down coordinates?
// (Upside-down means (0,0) is the top left corner of the page.)
bool upsideDown() override { return true; }
// Does this device use drawChar() or drawString()?
bool useDrawChar() override { return false; }
// Does this device use tilingPatternFill()? If this returns false,
// tiling pattern fills will be reduced to a series of other drawing
// operations.
bool useTilingPatternFill() override { return true; }
// Does this device use functionShadedFill(), axialShadedFill(), and
// radialShadedFill()? If this returns false, these shaded fills
// will be reduced to a series of other drawing operations.
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 11, 2)
bool useShadedFills(int type) override { return type <= 7; }
#else
bool useShadedFills(int type) override { return type < 4; }
#endif
// Does this device use FillColorStop()?
bool useFillColorStop() override { return false; }
// Does this device use beginType3Char/endType3Char? Otherwise,
// text in Type 3 fonts will be drawn with drawChar/drawString.
bool interpretType3Chars() override { return false; }
// Does this device need non-text content?
bool needNonText() override { return true; }
//----- save/restore graphics state
void saveState(GfxState *state) override { }
void restoreState(GfxState *state) override { }
//----- update graphics state
void updateAll(GfxState *state) override { }
void setDefaultCTM(const double *ctm) override { }
void updateCTM(GfxState *state, double m11, double m12,
double m21, double m22, double m31, double m32) override { }
void updateLineDash(GfxState *state) override { }
void updateFlatness(GfxState *state) override { }
void updateLineJoin(GfxState *state) override { }
void updateLineCap(GfxState *state) override { }
void updateMiterLimit(GfxState *state) override { }
void updateLineWidth(GfxState *state) override { }
void updateFillColor(GfxState *state) override { }
void updateStrokeColor(GfxState *state) override { }
void updateFillOpacity(GfxState *state) override { }
void updateStrokeOpacity(GfxState *state) override { }
void updateBlendMode(GfxState *state) override { }
//----- update text state
void updateFont(GfxState *state) override { }
//----- path painting
void stroke(GfxState *state) override { }
void fill(GfxState *state) override { }
void eoFill(GfxState *state) override { }
void clipToStrokePath(GfxState *state) override { }
bool tilingPatternFill(GfxState *state, Gfx *gfx, Catalog *cat, Object *str,
const double *pmat, int paintType, int tilingType, Dict *resDict,
const double *mat, const double *bbox,
int x0, int y0, int x1, int y1,
double xStep, double yStep) override { return true; }
bool axialShadedFill(GfxState *state,
GfxAxialShading *shading,
double tMin, double tMax) override { return true; }
bool radialShadedFill(GfxState *state,
GfxRadialShading *shading,
double sMin, double sMax) override { return true; }
//----- path clipping
void clip(GfxState *state) override { }
void eoClip(GfxState *state) override { }
//----- image drawing
void drawImageMask(GfxState *state, Object *ref, Stream *str,
int width, int height, bool invert,
bool interpolate, bool inlineImg) override;
void drawImage(GfxState *state, Object *ref, Stream *str,
int width, int height, GfxImageColorMap *colorMap,
bool interpolate, const int *maskColors, bool inlineImg) override;
void drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str,
int width, int height,
GfxImageColorMap *colorMap,
bool interpolate,
Stream *maskStr,
int maskWidth, int maskHeight,
GfxImageColorMap *maskColorMap,
bool maskInterpolate) override;
void drawMaskedImage(GfxState *state, Object *ref, Stream *str,
int width, int height,
GfxImageColorMap *colorMap,
bool interpolate,
Stream *maskStr,
int maskWidth, int maskHeight,
bool maskInvert, bool maskInterpolate) override;
void setSoftMaskFromImageMask(GfxState *state, Object *ref, Stream *str,
int width, int height, bool invert,
bool inlineImg, double *baseMatrix) override;
void unsetSoftMaskFromImageMask(GfxState *state, double *baseMatrix) override {}
//----- transparency groups and soft masks
void beginTransparencyGroup(GfxState * /*state*/, const double * /*bbox*/,
GfxColorSpace * /*blendingColorSpace*/,
bool /*isolated*/, bool /*knockout*/,
bool /*forSoftMask*/) override {}
void endTransparencyGroup(GfxState * /*state*/) override {}
void paintTransparencyGroup(GfxState * /*state*/, const double * /*bbox*/) override {}
void setSoftMask(GfxState * /*state*/, const double * /*bbox*/, bool /*alpha*/,
Function * /*transferFunc*/, GfxColor * /*backdropColor*/) override {}
void clearSoftMask(GfxState * /*state*/) override {}
//----- Image list
// By default images are not rendred
void setImageDrawDecideCbk(bool (*cbk)(int img_id, void *data),
void *data) { imgDrawCbk = cbk; imgDrawCbkData = data; }
// Iterate through list of images.
int getNumImages() const { return numImages; }
CairoImage *getImage(int i) const { return images[i]; }
private:
void saveImage(CairoImage *image);
void getBBox(GfxState *state, int width, int height,
double *x1, double *y1, double *x2, double *y2);
CairoImage **images;
int numImages;
int size;
bool (*imgDrawCbk)(int img_id, void *data);
void *imgDrawCbkData;
};
#endif

379
pdf2htmlEX/3rdparty/poppler/git/CairoRescaleBox.cc vendored
View File

@ -1,379 +0,0 @@
/* -*- Mode: c; c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t; -*- */
/*
* Copyright © 2009 Mozilla Corporation
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Mozilla Corporation not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Mozilla Corporation makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT
* SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*
* Author: Jeff Muizelaar, Mozilla Corp.
*/
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2012 Hib Eris <hib@hiberis.nl>
// Copyright (C) 2012, 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de>
// Copyright (C) 2019 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2019 Marek Kasik <mkasik@redhat.com>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
/* This implements a box filter that supports non-integer box sizes */
#include <poppler-config.h>
#include <cstdint>
#include <stdint.h>
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <math.h>
#include "goo/gmem.h"
#include "CairoRescaleBox.h"
/* we work in fixed point where 1. == 1 << 24 */
#define FIXED_SHIFT 24
static void downsample_row_box_filter (
int start, int width,
uint32_t *src, const uint32_t *src_limit, uint32_t *dest,
const int coverage[], int pixel_coverage)
{
/* we need an array of the pixel contribution of each destination pixel on the boundaries.
* we invert the value to get the value on the other size of the box */
/*
value = a * contribution * 1/box_size
value += a * 1/box_size
value += a * 1/box_size
value += a * 1/box_size
value += a * (1 - contribution) * 1/box_size
a * (1/box_size - contribution * 1/box_size)
box size is constant
value = a * contribution_a * 1/box_size + b * contribution_b * 1/box_size
contribution_b = (1 - contribution_a)
= (1 - contribution_a_next)
*/
/* box size = ceil(src_width/dest_width) */
int x = 0;
/* skip to start */
/* XXX: it might be possible to do this directly instead of iteratively, however
* the iterative solution is simple */
while (x < start && src < src_limit)
{
int box = 1 << FIXED_SHIFT;
int start_coverage = coverage[x];
box -= start_coverage;
src++;
while (box >= pixel_coverage && src < src_limit)
{
src++;
box -= pixel_coverage;
}
x++;
}
while (x < start + width && src < src_limit)
{
uint32_t a = 0;
uint32_t r = 0;
uint32_t g = 0;
uint32_t b = 0;
int box = 1 << FIXED_SHIFT;
int start_coverage = coverage[x];
a = ((*src >> 24) & 0xff) * start_coverage;
r = ((*src >> 16) & 0xff) * start_coverage;
g = ((*src >> 8) & 0xff) * start_coverage;
b = ((*src >> 0) & 0xff) * start_coverage;
src++;
x++;
box -= start_coverage;
while (box >= pixel_coverage && src < src_limit)
{
a += ((*src >> 24) & 0xff) * pixel_coverage;
r += ((*src >> 16) & 0xff) * pixel_coverage;
g += ((*src >> 8) & 0xff) * pixel_coverage;
b += ((*src >> 0) & 0xff) * pixel_coverage;
src++;
box -= pixel_coverage;
}
/* multiply by whatever is leftover
* this ensures that we don't bias down.
* i.e. start_coverage + n*pixel_coverage + box == 1 << 24 */
if (box > 0 && src < src_limit)
{
a += ((*src >> 24) & 0xff) * box;
r += ((*src >> 16) & 0xff) * box;
g += ((*src >> 8) & 0xff) * box;
b += ((*src >> 0) & 0xff) * box;
}
a >>= FIXED_SHIFT;
r >>= FIXED_SHIFT;
g >>= FIXED_SHIFT;
b >>= FIXED_SHIFT;
*dest = (a << 24) | (r << 16) | (g << 8) | b;
dest++;
}
}
static void downsample_columns_box_filter (
int n,
int start_coverage,
int pixel_coverage,
uint32_t *src, uint32_t *dest)
{
int stride = n;
while (n--) {
uint32_t a = 0;
uint32_t r = 0;
uint32_t g = 0;
uint32_t b = 0;
uint32_t *column_src = src;
int box = 1 << FIXED_SHIFT;
a = ((*column_src >> 24) & 0xff) * start_coverage;
r = ((*column_src >> 16) & 0xff) * start_coverage;
g = ((*column_src >> 8) & 0xff) * start_coverage;
b = ((*column_src >> 0) & 0xff) * start_coverage;
column_src += stride;
box -= start_coverage;
while (box >= pixel_coverage)
{
a += ((*column_src >> 24) & 0xff) * pixel_coverage;
r += ((*column_src >> 16) & 0xff) * pixel_coverage;
g += ((*column_src >> 8) & 0xff) * pixel_coverage;
b += ((*column_src >> 0) & 0xff) * pixel_coverage;
column_src += stride;
box -= pixel_coverage;
}
if (box > 0) {
a += ((*column_src >> 24) & 0xff) * box;
r += ((*column_src >> 16) & 0xff) * box;
g += ((*column_src >> 8) & 0xff) * box;
b += ((*column_src >> 0) & 0xff) * box;
}
a >>= FIXED_SHIFT;
r >>= FIXED_SHIFT;
g >>= FIXED_SHIFT;
b >>= FIXED_SHIFT;
*dest = (a << 24) | (r << 16) | (g << 8) | b;
dest++;
src++;
}
}
static int compute_coverage (int coverage[], int src_length, int dest_length)
{
int i;
/* num = src_length/dest_length
total = sum(pixel) / num
pixel * 1/num == pixel * dest_length / src_length
*/
/* the average contribution of each source pixel */
int ratio = ((1 << 24)*(long long int)dest_length)/src_length;
/* because ((1 << 24)*(long long int)dest_length) won't always be divisible by src_length
* we'll need someplace to put the other bits.
*
* We want to ensure a + n*ratio < 1<<24
*
* 1<<24
* */
double scale = (double)src_length/dest_length;
/* for each destination pixel compute the coverage of the left most pixel included in the box */
/* I have a proof of this, which this margin is too narrow to contain */
for (i=0; i<dest_length; i++)
{
double left_side = i*scale;
double right_side = (i+1)*scale;
double right_fract = right_side - floor (right_side);
double left_fract = ceil (left_side) - left_side;
int overage;
/* find out how many source pixels will be used to fill the box */
int count = floor (right_side) - ceil (left_side);
/* what's the maximum value this expression can become?
floor((i+1)*scale) - ceil(i*scale)
(i+1)*scale - i*scale == scale
since floor((i+1)*scale) <= (i+1)*scale
and ceil(i*scale) >= i*scale
floor((i+1)*scale) - ceil(i*scale) <= scale
further since: floor((i+1)*scale) - ceil(i*scale) is an integer
therefore:
floor((i+1)*scale) - ceil(i*scale) <= floor(scale)
*/
if (left_fract == 0.)
count--;
/* compute how much the right-most pixel contributes */
overage = ratio*(right_fract);
/* the remainder is the amount that the left-most pixel
* contributes */
coverage[i] = (1<<24) - (count * ratio + overage);
}
return ratio;
}
bool CairoRescaleBox::downScaleImage(unsigned orig_width, unsigned orig_height,
signed scaled_width, signed scaled_height,
unsigned short int start_column, unsigned short int start_row,
unsigned short int width, unsigned short int height,
cairo_surface_t *dest_surface) {
int pixel_coverage_x, pixel_coverage_y;
int dest_y;
int src_y = 0;
uint32_t *scanline;
int *x_coverage = nullptr;
int *y_coverage = nullptr;
uint32_t *temp_buf = nullptr;
bool retval = false;
unsigned int *dest;
int dst_stride;
dest = reinterpret_cast<unsigned int *>(cairo_image_surface_get_data (dest_surface));
dst_stride = cairo_image_surface_get_stride (dest_surface);
scanline = (uint32_t*)gmallocn (orig_width, sizeof(int));
x_coverage = (int *)gmallocn (orig_width, sizeof(int));
y_coverage = (int *)gmallocn (orig_height, sizeof(int));
/* we need to allocate enough room for ceil(src_height/dest_height)+1
Example:
src_height = 140
dest_height = 50
src_height/dest_height = 2.8
|-------------| 2.8 pixels
|----|----|----|----| 4 pixels
need to sample 3 pixels
|-------------| 2.8 pixels
|----|----|----|----| 4 pixels
need to sample 4 pixels
*/
temp_buf = (uint32_t *)gmallocn3 ((orig_height + scaled_height-1)/scaled_height+1, scaled_width, sizeof(uint32_t));
if (!x_coverage || !y_coverage || !scanline || !temp_buf)
goto cleanup;
pixel_coverage_x = compute_coverage (x_coverage, orig_width, scaled_width);
pixel_coverage_y = compute_coverage (y_coverage, orig_height, scaled_height);
assert (width + start_column <= scaled_width);
/* skip the rows at the beginning */
for (dest_y = 0; dest_y < start_row; dest_y++)
{
int box = 1 << FIXED_SHIFT;
int start_coverage_y = y_coverage[dest_y];
box -= start_coverage_y;
src_y++;
while (box >= pixel_coverage_y)
{
box -= pixel_coverage_y;
src_y++;
}
}
for (; dest_y < start_row + height; dest_y++)
{
int columns = 0;
int box = 1 << FIXED_SHIFT;
int start_coverage_y = y_coverage[dest_y];
getRow(src_y, scanline);
downsample_row_box_filter (start_column, width, scanline, scanline + orig_width, temp_buf + width * columns, x_coverage, pixel_coverage_x);
columns++;
src_y++;
box -= start_coverage_y;
while (box >= pixel_coverage_y)
{
getRow(src_y, scanline);
downsample_row_box_filter (start_column, width, scanline, scanline + orig_width, temp_buf + width * columns, x_coverage, pixel_coverage_x);
columns++;
src_y++;
box -= pixel_coverage_y;
}
/* downsample any leftovers */
if (box > 0)
{
getRow(src_y, scanline);
downsample_row_box_filter (start_column, width, scanline, scanline + orig_width, temp_buf + width * columns, x_coverage, pixel_coverage_x);
columns++;
}
/* now scale the rows we just downsampled in the y direction */
downsample_columns_box_filter (width, start_coverage_y, pixel_coverage_y, temp_buf, dest);
dest += dst_stride / 4;
// assert(width*columns <= ((orig_height + scaled_height-1)/scaled_height+1) * width);
}
// assert (src_y<=orig_height);
retval = true;
cleanup:
free (x_coverage);
free (y_coverage);
free (temp_buf);
free (scanline);
return retval;
}

64
pdf2htmlEX/3rdparty/poppler/git/CairoRescaleBox.h vendored
View File

@ -1,64 +0,0 @@
/*
* Copyright © 2009 Mozilla Corporation
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Mozilla Corporation not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Mozilla Corporation makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT
* SHALL MOZILLA CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*
* Author: Jeff Muizelaar, Mozilla Corp.
*/
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2012 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2018 Albert Astals Cid <aacid@kde.org>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#ifndef CAIRO_RESCALE_BOX_H
#define CAIRO_RESCALE_BOX_H
#include <cairo.h>
class CairoRescaleBox {
public:
CairoRescaleBox() {};
virtual ~CairoRescaleBox() {};
CairoRescaleBox(const CairoRescaleBox &) = delete;
CairoRescaleBox& operator=(const CairoRescaleBox &) = delete;
virtual bool downScaleImage(unsigned orig_width, unsigned orig_height,
signed scaled_width, signed scaled_height,
unsigned short int start_column, unsigned short int start_row,
unsigned short int width, unsigned short int height,
cairo_surface_t *dest_surface);
virtual void getRow(int row_num, uint32_t *row_data) = 0;
};
#endif /* CAIRO_RESCALE_BOX_H */

76
pdf2htmlEX/CMakeLists.txt
View File

@ -20,30 +20,35 @@ add_custom_target(dist
find_package(PkgConfig)
pkg_check_modules(POPPLER REQUIRED poppler>=0.81.0)
include_directories(${POPPLER_INCLUDE_DIRS})
link_directories(${POPPLER_LIBRARY_DIRS})
set(PDF2HTMLEX_LIBS ${PDF2HTMLEX_LIBS} ${POPPLER_LIBRARIES})
# SINCE we have a very intimate relationship with a particular version of
# poppler... we explicitly describe the poppler include and library
# paths.
#
include_directories(
../poppler/build/poppler
../poppler/build
../poppler/poppler
../poppler
)
#
# The following order is critical as the glib functions use functions
# located in the main poppler library
#
set(POPPLER_LIBRARIES ${POPPLER_LIBRARIES}
${CMAKE_SOURCE_DIR}/../poppler/build/glib/libpoppler-glib.a
${CMAKE_SOURCE_DIR}/../poppler/build/libpoppler.a
)
if(ENABLE_SVG)
pkg_check_modules(CAIRO REQUIRED cairo>=1.10.0)
message("Trying to locate cairo-svg...")
message("-- Trying to locate cairo-svg...")
find_path(CAIRO_SVG_INCLUDE_PATH cairo-svg.h PATHS ${CAIRO_INCLUDE_DIRS} NO_DEFAULT_PATH)
if(CAIRO_SVG_INCLUDE_PATH)
message("-- found cairo-svg...")
include_directories(${CAIRO_INCLUDE_DIRS})
link_directories(${CAIRO_LIBRARY_DIRS})
set(PDF2HTMLEX_LIBS ${PDF2HTMLEX_LIBS} ${CAIRO_LIBRARIES})
set(ENABLE_SVG 1)
set(CAIROOUTPUTDEV_PATH 3rdparty/poppler/git)
include_directories(${CAIROOUTPUTDEV_PATH})
set(PDF2HTMLEX_SRC ${PDF2HTMLEX_SRC}
${CAIROOUTPUTDEV_PATH}/CairoFontEngine.h
${CAIROOUTPUTDEV_PATH}/CairoFontEngine.cc
${CAIROOUTPUTDEV_PATH}/CairoRescaleBox.h
${CAIROOUTPUTDEV_PATH}/CairoRescaleBox.cc
${CAIROOUTPUTDEV_PATH}/CairoOutputDev.h
${CAIROOUTPUTDEV_PATH}/CairoOutputDev.cc
)
else()
message(FATAL_ERROR "Error: no SVG support found in Cairo")
endif()
@ -54,13 +59,44 @@ if(ENABLE_SVG)
set(PDF2HTMLEX_LIBS ${PDF2HTMLEX_LIBS} ${FREETYPE_LIBRARIES})
endif()
# fontforge starts using pkg-config 'correctly' since 2.0.0
#pkg_check_modules(FONTFORGE REQUIRED libfontforge>=2.0.20170731)
pkg_check_modules(FONTFORGE REQUIRED libfontforge>=2.0.0)
# SINCE we have a very intimate relationship with a particular version of
# fontforge... we explicitly describe the fontforge include and library
# paths.
#
include_directories(
../fontforge/fontforge
../fontforge
../fontforge/build/inc
../fontforge/inc
)
#
include_directories(${FONTFORGE_INCLUDE_DIRS})
link_directories(${FONTFORGE_LIBRARY_DIRS})
set(FONTFORGE_LIBRARIES ${FONTFORGE_LIBRARIES} -lgutils)
set(PDF2HTMLEX_LIBS ${PDF2HTMLEX_LIBS} ${FONTFORGE_LIBRARIES})
set(FONTFORGE_LIBRARIES ${FONTFORGE_LIBRARIES}
${CMAKE_SOURCE_DIR}/../fontforge/fontforge/.libs/libfontforge.a
${CMAKE_SOURCE_DIR}/../fontforge/Unicode/.libs/libgunicode.a
${CMAKE_SOURCE_DIR}/../fontforge/gutils/.libs/libgutils.a
)
set(PDF2HTMLEX_LIBS ${PDF2HTMLEX_LIBS}
${POPPLER_LIBRARIES}
${FONTFORGE_LIBRARIES}
-lfreetype
-lfontconfig
-ljpeg
-lz
-llcms2
-lpng
-lz
-llcms2
-pthread
-lspiro
-luninameslist
-lm
-lxml2
-lglib-2.0
-lgio-2.0
)
# debug build flags (overwrite default cmake debug flags)
set(CMAKE_C_FLAGS_DEBUG "-ggdb -pg")

24
pdf2htmlEX/src/util/ffw.c
View File

@ -21,18 +21,18 @@
#include "ffw.h" // needed for:
#include "gfile.h" // FindProgDir
#include "fontforge-version-extras.h" // FONTFORGE_GIT_VERSION
#include "fontforge-20190801/autowidth.h" // FVRemoveKerns
#include "fontforge-20190801/bitmapchar.h" // SFReplaceEncodingBDFProps
#include "fontforge-20190801/cvimages.h" // FVImportImages
#include "fontforge-20190801/encoding.h" // (helpful as we have a name conflict)
#include "fontforge-20190801/fvfonts.h" // SFFindSlot
#include "fontforge-20190801/namelist.h" // UniFromName
#include "fontforge-20190801/savefont.h" // GenerateScript
#include "fontforge-20190801/splineorder2.h" // SFConvertToOrder2
#include "fontforge-20190801/splineutil.h" // AltUniFree
#include "fontforge-20190801/splineutil2.h" // SplineFontNew
#include "fontforge-20190801/start.h" // InitSimpleStuff
#include "fontforge-20190801/tottf.h" // SFDefaultOS2Info
#include "fontforge/autowidth.h" // FVRemoveKerns
#include "fontforge/bitmapchar.h" // SFReplaceEncodingBDFProps
#include "fontforge/cvimages.h" // FVImportImages
#include "fontforge/encoding.h" // (helpful as we have a name conflict)
#include "fontforge/fvfonts.h" // SFFindSlot
#include "fontforge/namelist.h" // UniFromName
#include "fontforge/savefont.h" // GenerateScript
#include "fontforge/splineorder2.h" // SFConvertToOrder2
#include "fontforge/splineutil.h" // AltUniFree
#include "fontforge/splineutil2.h" // SplineFontNew
#include "fontforge/start.h" // InitSimpleStuff
#include "fontforge/tottf.h" // SFDefaultOS2Info
static real EPS=1e-6;

26
pdf2htmlEX/src/util/fontforge-20190801/Readme.md
View File

@ -1,26 +0,0 @@
# FontForge: the missing headers
The FontForge header files in this directory are taken from the
FontForge-20190801 release.
They are headers which are not usually installed by the FontForge make
system.
## Required headers
- `autowidth.h` required for FVRemoveKerns
- `bitmapchar.h` required for SFReplaceEncodingBDFProps
- `cvimages.h` required for FVImportImages
- `fvfonts.h` required for SFFindSlot
- `namelist.h` required for UniFromName
- `savefont.h` required for GenerateScript
- `splineorder2.h` required for SFConvertToOrder2
- `splineutil.h` required for AltUniFree
- `splineutil2.h` required for SplineFontNew
- `start.h` required for InitSimpleStuff
- `tottf.h` required for SFDefaultOS2Info
## Helpful headers
- `encoding.h` conflicts with an existing header in the src/util directory.

81
pdf2htmlEX/src/util/fontforge-20190801/autowidth.h
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@ -1,81 +0,0 @@
#ifndef FONTFORGE_AUTOWIDTH_H
#define FONTFORGE_AUTOWIDTH_H
#include "baseviews.h"
#include "splinefont.h"
struct charone {
real lbearing, rmax;
real newl, newr;
int baseserif, lefttops, righttops; /* serif zones which affect this character */
SplineChar *sc;
int base, top; /* bottom of character, number of decimation zones we've got */
short *ledge;
short *redge;
struct charpair *asleft;
struct charpair *asright;
};
struct charpair {
struct charone *left, *right;
struct charpair *nextasleft, *nextasright;
int base, top;
short *distances;
short visual;
};
typedef struct widthinfo {
real spacing; /* desired spacing between letters */
real decimation;
real serifsize;
real seriflength;
real caph;
real descent;
real xheight;
real n_stem_exterior_width, n_stem_interior_width;
real current_I_spacing;
int serifs[4][2]; /* Four serif zones: descent, baseline, xheight, cap */
int lcnt, rcnt; /* count of left and right chars respectively */
int real_lcnt, real_rcnt; /* what the user asked for. We might add I */
int tcnt; /* sum of r+l cnt */
int pcnt; /* pair count, often r*l cnt */
int l_Ipos, r_Ipos;
struct charone **left, **right;
struct charpair **pairs;
int space_guess;
int threshold;
SplineFont *sf;
FontViewBase *fv;
int layer;
unsigned int done: 1;
unsigned int autokern: 1;
unsigned int onlynegkerns: 1;
struct lookup_subtable *subtable;
} WidthInfo;
#define NOTREACHED -9999.0
extern struct charone *AW_MakeCharOne(SplineChar *sc);
extern void AW_InitCharPairs(WidthInfo *wi);
extern void AW_FreeCharList(struct charone **list);
extern void AW_FreeCharPairs(struct charpair **list, int cnt);
extern void AW_ScriptSerifChecker(WidthInfo *wi);
extern int AW_ReadKernPairFile(char *fn,WidthInfo *wi);
extern void AW_BuildCharPairs(WidthInfo *wi);
extern void AW_AutoKern(WidthInfo *wi);
extern void AW_AutoWidth(WidthInfo *wi);
extern void AW_FindFontParameters(WidthInfo *wi);
extern void AW_KernRemoveBelowThreshold(SplineFont *sf,int threshold);
extern SplineFont *aw_old_sf;
extern int aw_old_spaceguess;
extern int AutoKernScript(FontViewBase *fv, int spacing, int threshold, struct lookup_subtable *sub, char *kernfile);
extern int AutoWidthScript(FontViewBase *fv, int spacing);
extern int KernThreshold(SplineFont *sf, int cnt);
extern real SFGuessItalicAngle(SplineFont *sf);
extern void FVRemoveKerns(FontViewBase *fv);
extern void FVRemoveVKerns(FontViewBase *fv);
extern void FVVKernFromHKern(FontViewBase *fv);
#endif /* FONTFORGE_AUTOWIDTH_H */

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pdf2htmlEX/src/util/fontforge-20190801/bitmapchar.h
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#ifndef FONTFORGE_BITMAPCHAR_H
#define FONTFORGE_BITMAPCHAR_H
#include "splinefont.h"
#include "uiinterface.h"
extern BDFChar *BDFMakeChar(BDFFont *bdf, EncMap *map, int enc);
extern BDFChar *BDFMakeGID(BDFFont *bdf, int gid);
extern BDFProperties *BdfPropsCopy(BDFProperties *props, int cnt);
extern const char *BdfPropHasString(BDFFont *font, const char *key, const char *def);
extern int BdfPropHasInt(BDFFont *font, const char *key, int def);
extern int IsUnsignedBDFKey(const char *key);
extern void BCClearAll(BDFChar *bc);
extern void BDFDefaultProps(BDFFont *bdf, EncMap *map, int res);
extern void Default_Properties(BDFFont *bdf, EncMap *map, char *onlyme);
extern void Default_XLFD(BDFFont *bdf, EncMap *map, int res);
extern void def_Charset_Enc(EncMap *map, char *reg, char *enc);
extern void FF_SetBCInterface(struct bc_interface *bci);
extern void SFReplaceEncodingBDFProps(SplineFont *sf, EncMap *map);
extern void SFReplaceFontnameBDFProps(SplineFont *sf);
extern void XLFD_CreateComponents(BDFFont *font, EncMap *map, int res, struct xlfd_components *components);
extern void XLFD_GetComponents(const char *xlfd, struct xlfd_components *components);
#endif /* FONTFORGE_BITMAPCHAR_H */

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pdf2htmlEX/src/util/fontforge-20190801/cvimages.h
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#ifndef FONTFORGE_CVIMAGES_H
#define FONTFORGE_CVIMAGES_H
#include "baseviews.h"
#include "gimage.h"
#include "sd.h"
#include "splinefont.h"
extern GImage *ImageAlterClut(GImage *image);
extern int FVImportImages(FontViewBase *fv, char *path, int format, int toback, int flags);
extern int FVImportImageTemplate(FontViewBase *fv, char *path, int format, int toback, int flags);
extern void SCAddScaleImage(SplineChar *sc, GImage *image, int doclear, int layer);
extern void SCAppendEntityLayers(SplineChar *sc, Entity *ent);
extern void SCImportFig(SplineChar *sc, int layer, char *path, int doclear);
extern void SCImportGlif(SplineChar *sc, int layer, char *path, char *memory, int memlen, int doclear);
extern void SCImportPDFFile(SplineChar *sc, int layer, FILE *pdf, int doclear, int flags);
extern void SCImportPlateFile(SplineChar *sc, int layer, FILE *plate, int doclear);
extern void SCImportPSFile(SplineChar *sc, int layer, FILE *ps, int doclear, int flags);
extern void SCImportSVG(SplineChar *sc, int layer, char *path, char *memory, int memlen, int doclear);
extern void SCInsertImage(SplineChar *sc, GImage *image, real scale, real yoff, real xoff, int layer);
#endif /* FONTFORGE_CVIMAGES_H */

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pdf2htmlEX/src/util/fontforge-20190801/encoding.h
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#ifndef FONTFORGE_ENCODING_H
#define FONTFORGE_ENCODING_H
#include "baseviews.h"
#include "splinefont.h"
struct cidaltuni {
struct cidaltuni *next;
int uni;
int cid;
};
struct cidmap {
char *registry, *ordering;
int supplement, maxsupple;
int cidmax; /* Max cid found in the charset */
int namemax; /* Max cid with useful info */
uint32 *unicode;
char **name;
struct cidaltuni *alts;
struct cidmap *next;
};
extern struct cidmap *cidmaps;
extern void DeleteEncoding(Encoding *me);
extern void EncodingFree(Encoding *item);
extern void RemoveMultiples(Encoding *item);
extern char *ParseEncodingFile(char *filename, char *encodingname);
extern char *SFEncodingName(SplineFont *sf, EncMap *map);
extern const char *FindUnicharName(void);
extern EncMap *CompactEncMap(EncMap *map, SplineFont *sf);
extern EncMap *EncMapFromEncoding(SplineFont *sf, Encoding *enc);
extern Encoding *FindOrMakeEncoding(const char *name);
extern Encoding *_FindOrMakeEncoding(const char *name, int make_it);
extern int32 EncFromName(const char *name, enum uni_interp interp, Encoding *encname);
extern int32 EncFromUni(int32 uni, Encoding *enc);
extern int32 UniFromEnc(int enc, Encoding *encname);
/* The "Encoding" here is a little different from what you normally see*/
/* It isn't a mapping from a byte stream to unicode, but from an int */
/* to unicode. If we have an 8/16 encoding (EUC or SJIS) then the */
/* single byte entries will be numbers less than <256 and the */
/* multibyte entries will be numbers >=256. So an encoding might be */
/* valid for the domain [0x20..0x7f] [0xa1a1..0xfefe] */
/* In other words, we're interested in the ordering displayed in the */
/* fontview. Nothing else */
/* The max value need not be exact (though it should be at least as big)*/
/* if you create a new font with the given encoding, then the font will */
/* have max slots in it by default */
/* A return value of -1 (from an EncFunc) indicates no mapping */
/* AddEncoding returns 1 if the encoding was added, 2 if it replaced */
/* an existing encoding, 0 if you attempt to replace a builtin */
/* encoding */
typedef int (*EncFunc)(int);
extern int AddEncoding(char *name, EncFunc enc_to_uni, EncFunc uni_to_enc, int max);
extern int CID2NameUni(struct cidmap *map, int cid, char *buffer, int len);
extern int CID2Uni(struct cidmap *map, int cid);
extern int CIDFromName(char *name, SplineFont *cidmaster);
extern int CountOfEncoding(Encoding *encoding_name);
extern int MaxCID(struct cidmap *map);
extern int NameUni2CID(struct cidmap *map, int uni, const char *name);
extern int SFFlattenByCMap(SplineFont **sf, char *cmapname);
extern int SFForceEncoding(SplineFont *sf, EncMap *old, Encoding *new_enc);
extern int SFReencode(SplineFont *sf, const char *encname, int force);
extern SplineFont *CIDFlatten(SplineFont *cidmaster, SplineChar **glyphs, int charcnt);
extern SplineFont *MakeCIDMaster(SplineFont *sf, EncMap *oldmap, int bycmap, char *cmapfilename, struct cidmap *cidmap);
extern struct altuni *CIDSetAltUnis(struct cidmap *map, int cid);
extern struct cidmap *FindCidMap(char *registry, char *ordering, int supplement, SplineFont *sf);
extern struct cidmap *LoadMapFromFile(char *file, char *registry, char *ordering, int supplement);
extern void BDFOrigFixup(BDFFont *bdf, int orig_cnt, SplineFont *sf);
extern void CIDMasterAsDes(SplineFont *sf);
extern void DumpPfaEditEncodings(void);
extern void FVAddEncodingSlot(FontViewBase *fv, int gid);
extern void LoadPfaEditEncodings(void);
extern void MMMatchGlyphs(MMSet *mm);
extern void SFAddEncodingSlot(SplineFont *sf, int gid);
extern void SFAddGlyphAndEncode(SplineFont *sf, SplineChar *sc, EncMap *basemap, int baseenc);
extern void SFEncodeToMap(SplineFont *sf, struct cidmap *map);
extern void SFExpandGlyphCount(SplineFont *sf, int newcnt);
extern void SFMatchGlyphs(SplineFont *sf, SplineFont *target, int addempties);
extern void SFRemoveGlyph(SplineFont *sf, SplineChar *sc);
#endif /* FONTFORGE_ENCODING_H */

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pdf2htmlEX/src/util/fontforge-20190801/fvfonts.h
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#ifndef FONTFORGE_FVFONTS_H
#define FONTFORGE_FVFONTS_H
#include "baseviews.h"
#include "splinefont.h"
extern AnchorClass *MCConvertAnchorClass(struct sfmergecontext *mc, AnchorClass *ac);
extern BDFChar *BDFCharCopy(BDFChar *bc);
extern int SFCIDFindCID(SplineFont *sf, int unienc, const char *name);
extern int SFCIDFindExistingChar(SplineFont *sf, int unienc, const char *name);
extern int SFFindExistingSlot(SplineFont *sf, int unienc, const char *name);
extern int SFFindGID(SplineFont *sf, int unienc, const char *name);
extern int SFFindSlot(SplineFont *sf, EncMap *map, int unienc, const char *name);
extern int SFHasChar(SplineFont *sf, int unienc, const char *name);
extern int SFHasCID(SplineFont *sf, int cid);
extern PST *PSTCopy(PST *base, SplineChar *sc, struct sfmergecontext *mc);
extern RefChar *RefCharsCopy(RefChar *ref);
extern SplineChar *SFGetChar(SplineFont *sf, int unienc, const char *name);
extern SplineChar *SFGetOrMakeCharFromUnicodeBasic(SplineFont *sf, int ch);
extern SplineChar *SFHashName(SplineFont *sf, const char *name);
extern SplineChar *SplineCharCopy(SplineChar *sc, SplineFont *into, struct sfmergecontext *mc);
extern SplineChar *SplineCharInterpolate(SplineChar *base, SplineChar *other, real amount, SplineFont *newfont);
extern SplineFont *InterpolateFont(SplineFont *base, SplineFont *other, real amount, Encoding *enc);
extern SplineSet *SplineSetsInterpolate(SplineSet *base, SplineSet *other, real amount, SplineChar *sc);
extern struct altuni *AltUniCopy(struct altuni *altuni, SplineFont *noconflicts);
extern struct lookup_subtable *MCConvertSubtable(struct sfmergecontext *mc, struct lookup_subtable *sub);
extern void BitmapsCopy(SplineFont *to, SplineFont *from, int to_index, int from_index);
extern void GlyphHashFree(SplineFont *sf);
extern void __GlyphHashFree(struct glyphnamehash *hash);
extern void MergeFont(FontViewBase *fv, SplineFont *other, int preserveCrossFontKerning);
extern void SFFinishMergeContext(struct sfmergecontext *mc);
extern void SFHashGlyph(SplineFont *sf, SplineChar *sc);
#endif /* FONTFORGE_FVFONTS_H */

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pdf2htmlEX/src/util/fontforge-20190801/namelist.h
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#ifndef FONTFORGE_NAMELIST_H
#define FONTFORGE_NAMELIST_H
#include "splinefont.h"
extern char **AllGlyphNames(int uni, NameList *for_this_font, SplineChar *sc);
extern char **AllNamelistNames(void);
extern char **SFTemporaryRenameGlyphsToNamelist(SplineFont *sf, NameList *new);
extern const char *RenameGlyphToNamelist(char *buffer, SplineChar *sc, NameList *old, NameList *new, char **sofar);
extern const char *StdGlyphName(char *buffer, int uni, enum uni_interp interp, NameList *for_this_font);
extern const char *StdGlyphNameBoundsCheck(char *buffer, int uni, enum uni_interp interp, NameList *for_this_font);
extern int UniFromName(const char *name, enum uni_interp interp, Encoding *encname);
extern NameList *DefaultNameListForNewFonts(void);
extern NameList *LoadNamelist(char *filename);
extern NameList *NameListByName(const char *name);
extern void LoadNamelistDir(char *dir);
extern void SFRenameGlyphsToNamelist(SplineFont *sf, NameList *new);
extern void SFTemporaryRestoreGlyphNames(SplineFont *sf, char **former);
#endif /* FONTFORGE_NAMELIST_H */

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pdf2htmlEX/src/util/fontforge-20190801/savefont.h
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/* Copyright (C) 2007-2012 by George Williams */
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FONTFORGE_SAVEFONT_H
#define FONTFORGE_SAVEFONT_H
#include <fontforge-config.h>
#include "splinefont.h"
enum fm_flags { fm_flag_afm = 0x1,
fm_flag_pfm = 0x2,
fm_flag_shortps = 0x4,
fm_flag_nopshints = 0x8,
fm_flag_apple = 0x10,
fm_flag_pfed_comments = 0x20,
fm_flag_pfed_colors = 0x40,
fm_flag_opentype = 0x80,
fm_flag_glyphmap = 0x100,
fm_flag_TeXtable = 0x200,
fm_flag_ofm = 0x400,
fm_flag_applemode = 0x800,
// fm_flag_??? = 0x1000,
fm_flag_symbol = 0x2000,
fm_flag_dummyDSIG = 0x4000,
// fm_flag_??? = 0x8000,
fm_flag_tfm = 0x10000,
fm_flag_nohintsubs = 0x20000,
fm_flag_noflex = 0x40000,
fm_flag_nottfhints = 0x80000,
fm_flag_restrict256 = 0x100000,
fm_flag_round = 0x200000,
fm_flag_afmwithmarks = 0x400000,
fm_flag_pfed_lookups = 0x800000,
fm_flag_pfed_guides = 0x1000000,
fm_flag_pfed_layers = 0x2000000,
fm_flag_winkern = 0x4000000,
fm_flag_nomacnames = 0x8000000,
};
extern const char (*savefont_extensions[]), (*bitmapextensions[]);
extern int old_sfnt_flags;
void PrepareUnlinkRmOvrlp(SplineFont *sf,const char *filename,int layer);
void RestoreUnlinkRmOvrlp(SplineFont *sf,const char *filename,int layer);
int _DoSave(SplineFont *sf,char *newname,int32 *sizes,int res,
EncMap *map, char *subfontdefinition,int layer);
int CheckIfTransparent(SplineFont *sf);
extern int GenerateScript(SplineFont *sf, char *filename, const char *bitmaptype, int fmflags, int res, char *subfontdirectory, struct sflist *sfs, EncMap *map, NameList *rename_to, int layer);
#ifdef FONTFORGE_CONFIG_WRITE_PFM
extern int WritePfmFile(char *filename, SplineFont *sf, EncMap *map, int layer);
#endif
#endif /* FONTFORGE_SAVEFONT_H */

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pdf2htmlEX/src/util/fontforge-20190801/splineorder2.h
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#ifndef FONTFORGE_SPLINEORDER2_H
#define FONTFORGE_SPLINEORDER2_H
#include "splinefont.h"
extern SplinePoint *SplineTtfApprox(Spline *ps);
extern SplineSet *SplineSetsConvertOrder(SplineSet *ss, int to_order2);
extern SplineSet *SplineSetsPSApprox(SplineSet *ss);
extern SplineSet *SplineSetsTTFApprox(SplineSet *ss);
extern SplineSet *SSPSApprox(SplineSet *ss);
extern SplineSet *SSttfApprox(SplineSet *ss);
extern Spline *SplineMake2(SplinePoint *from, SplinePoint *to);
extern void SCConvertLayerToOrder2(SplineChar *sc, int layer);
extern void SCConvertLayerToOrder3(SplineChar *sc, int layer);
extern void SCConvertOrder(SplineChar *sc, int to_order2);
extern void SCConvertToOrder2(SplineChar *sc);
extern void SCConvertToOrder3(SplineChar *sc);
extern void SFConvertGridToOrder2(SplineFont *_sf);
extern void SFConvertGridToOrder3(SplineFont *_sf);
extern void SFConvertLayerToOrder2(SplineFont *_sf, int layer);
extern void SFConvertLayerToOrder3(SplineFont *_sf, int layer);
extern void SFConvertToOrder2(SplineFont *_sf);
extern void SFConvertToOrder3(SplineFont *_sf);
extern void SplinePointNextCPChanged2(SplinePoint *sp);
extern void SplinePointPrevCPChanged2(SplinePoint *sp);
extern void SplineRefigure2(Spline *spline);
extern void SplineRefigureFixup(Spline *spline);
#endif /* FONTFORGE_SPLINEORDER2_H */

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pdf2htmlEX/src/util/fontforge-20190801/splineutil.h
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#ifndef FONTFORGE_SPLINEUTIL_H
#define FONTFORGE_SPLINEUTIL_H
#include "glif_name_hash.h"
#include "psfont.h"
#include "splinefont.h"
#include "ttfinstrs.h"
#include "views.h"
extern AnchorClass *SFFindOrAddAnchorClass(SplineFont *sf, char *name, struct lookup_subtable *sub);
extern AnchorPoint *AnchorPointsCopy(AnchorPoint *alist);
extern AnchorPoint *APAnchorClassMerge(AnchorPoint *anchors, AnchorClass *into, AnchorClass *from);
extern bigreal DistanceBetweenPoints(BasePoint *p1, BasePoint *p2);
extern bigreal SplineCurvature(Spline *s, bigreal t);
extern bigreal SplineMinDistanceToPoint(Spline *s, BasePoint *p);
extern size_t count_caps(const char * input);
extern char *upper_case(const char * input);
extern char *same_case(const char * input);
extern char *delimit_null(const char * input, char delimiter);
extern char *strconcat3(const char *str1, const char *str2, const char *str3);
extern char **StringExplode(const char *input, char delimiter);
extern char *XUIDFromFD(int xuid[20]);
extern DeviceTable *DeviceTableCopy(DeviceTable *orig);
extern double CheckExtremaForSingleBitErrors(const Spline1D *sp, double t, double othert);
extern DStemInfo *DStemInfoCopy(DStemInfo *h);
extern EncMap *EncMap1to1(int enccount);
extern EncMap *EncMapCopy(EncMap *map);
extern EncMap *EncMapNew(int enccount, int backmax, Encoding *enc);
/* Uses an iterative approximation */
extern extended IterateSplineSolve(const Spline1D *sp, extended tmin, extended tmax, extended sought_y);
/* Uses an iterative approximation and then tries to fix things up */
extern extended IterateSplineSolveFixup(const Spline1D *sp, extended tmin, extended tmax, extended sought_y);
extern FPST *FPSTCopy(FPST *fpst);
extern HintMask *HintMaskFromTransformedRef(RefChar *ref, BasePoint *trans, SplineChar *basesc,HintMask *hm);
extern ImageList *ImageListCopy(ImageList *cimg);
extern ImageList *ImageListTransform(ImageList *img, real transform[6], int everything);
extern int CountKerningClasses(SplineFont *sf);
extern int _CubicSolve(const Spline1D *sp, bigreal sought, extended ts[3]);
extern int GroupNameType(const char *input);
extern int IntersectLines(BasePoint *inter, BasePoint *line1_1, BasePoint *line1_2, BasePoint *line2_1, BasePoint *line2_2);
extern int IntersectLinesClip(BasePoint *inter, BasePoint *line1_1, BasePoint *line1_2, BasePoint *line2_1, BasePoint *line2_2);
extern int IntersectLinesSlopes(BasePoint *inter, BasePoint *line1, BasePoint *slope1, BasePoint *line2, BasePoint *slope2);
extern int LineTangentToSplineThroughPt(Spline *s, BasePoint *pt, extended ts[4], extended tmin, extended tmax);
extern int NearSpline(FindSel *fs, Spline *spline);
extern int SCRoundToCluster(SplineChar *sc, int layer, int sel, bigreal within, bigreal max);
extern int SFKerningGroupExistsSpecific(const struct splinefont *sf, const char *groupname, int isv, int isr);
extern int SpExistsInSS(SplinePoint *sp, SplineSet *ss);
extern int Spline2DFindExtrema(const Spline *sp, extended extrema[4]);
extern int Spline2DFindPointsOfInflection(const Spline *sp, extended poi[2]);
extern int SplineAtInflection(Spline1D *sp, bigreal t);
extern int SplineAtMinMax(Spline1D *sp, bigreal t);
extern int SplineExistsInSS(Spline *s, SplineSet *ss);
extern int SplinePointIsACorner(SplinePoint *sp);
extern int SplineSetIntersect(SplineSet *spl, Spline **_spline, Spline **_spline2);
extern int SplineSetsRemoveAnnoyingExtrema(SplineSet *ss, bigreal err);
extern int SplineRemoveWildControlPoints(Spline *s, bigreal distratio);
extern int SplineSetsRemoveWildControlPoints(SplineSet *ss, bigreal distratio);
/* Two lines intersect in at most 1 point */
/* Two quadratics intersect in at most 4 points */
/* Two cubics intersect in at most 9 points */ /* Plus an extra space for a trailing -1 */
extern int SplinesIntersect(const Spline *s1, const Spline *s2, BasePoint pts[9], extended t1s[10], extended t2s[10]);
extern int SplineT2SpiroIndex(Spline *spline, bigreal t, SplineSet *spl);
extern int SSBoundsWithin(SplineSet *ss, bigreal z1, bigreal z2, bigreal *wmin, bigreal *wmax, int major);
extern int SSExistsInLayer(SplineSet *ss, SplineSet *lots);
extern int SSHasClip(SplineSet *ss);
extern int SSHasDrawn(SplineSet *ss);
extern int SSPointWithin(SplineSet *spl, BasePoint *pt);
extern int StringInStrings(char const* const* space, int length, const char *target);
extern KernClass *KernClassCopy(KernClass *kc);
extern LinearApprox *SplineApproximate(Spline *spline, real scale);
extern MinimumDistance *MinimumDistanceCopy(MinimumDistance *md);
extern real SplineNearPoint(Spline *spline, BasePoint *bp, real fudge);
extern RefChar *RefCharCreate(void);
extern SplineChar *SFSplineCharCreate(SplineFont *sf);
extern SplineFont *SplineFontFromPSFont(FontDict *fd);
extern SplinePointList *SPLCopyTransformedHintMasks(RefChar *r, SplineChar *basesc, BasePoint *trans,int layer);
extern SplinePointList *SPLCopyTranslatedHintMasks(SplinePointList *base, SplineChar *basesc, SplineChar *subsc, BasePoint *trans);
extern SplinePointList *SplinePointListCopy1(const SplinePointList *spl);
extern SplinePointList *SplinePointListCopySelected(SplinePointList *base);
extern SplinePointList *SplinePointListCopySpiroSelected(SplinePointList *base);
extern SplinePointList *SplinePointListRemoveSelected(SplineChar *sc, SplinePointList *base);
extern SplinePointList *SplinePointListShift(SplinePointList *base, real xoff, enum transformPointType allpoints);
extern SplinePointList *SplinePointListSpiroTransform(SplinePointList *base, real transform[6], int allpoints);
extern SplinePointList *SplinePointListTransformExtended(SplinePointList *base, real transform[6], enum transformPointType tpt, enum transformPointMask tpmask);
extern SplinePoint *SplineBisect(Spline *spline, extended t);
extern SplinePoint *SplinePointCreate(real x, real y);
extern SplineSet *LayerAllSplines(Layer *layer);
extern SplineSet *LayerUnAllSplines(Layer *layer);
extern Spline *SplineMake3(SplinePoint *from, SplinePoint *to);
extern Spline *SplineSplit(Spline *spline, extended ts[3]);
extern struct baselangextent *BaseLangCopy(struct baselangextent *extent);
extern struct ff_glyphclasses *SFGetGroup(const struct splinefont *sf, int index, const char *name);
extern struct glyphvariants *GlyphVariantsCopy(struct glyphvariants *gv);
extern struct gradient *GradientCopy(struct gradient *old, real transform[6]);
extern struct jstf_lang *JstfLangsCopy(struct jstf_lang *jl);
extern struct mathkern *MathKernCopy(struct mathkern *mk);
extern struct pattern *PatternCopy(struct pattern *old, real transform[6]);
extern ValDevTab *ValDevTabCopy(ValDevTab *orig);
extern void AltUniFree(struct altuni *altuni);
extern void AnchorClassesFree(AnchorClass *an);
extern void AnchorPointsFree(AnchorPoint *ap);
extern void ApTransform(AnchorPoint *ap, real transform[6]);
extern void ASMFree(ASM *sm);
extern void BaseFree(struct Base *base);
extern void BaseLangFree(struct baselangextent *extent);
extern void BaseScriptFree(struct basescript *bs);
extern void BpTransform(BasePoint *to, BasePoint *from, real transform[6]);
extern void BrushCopy(struct brush *into, struct brush *from, real transform[6]);
extern void CIDLayerFindBounds(SplineFont *cidmaster, int layer, DBounds *bounds);
extern void DeviceTableFree(DeviceTable *dt);
extern void DeviceTableSet(DeviceTable *adjust, int size, int correction);
extern void DStemInfoFree(DStemInfo *h);
extern void DStemInfosFree(DStemInfo *h);
extern void EncMapFree(EncMap *map);
extern void ExplodedStringFree(char **input);
extern void FeatureScriptLangListFree(FeatureScriptLangList *fl);
extern void FPSTClassesFree(FPST *fpst);
extern void FPSTFree(FPST *fpst);
extern void FPSTRuleContentsFree(struct fpst_rule *r, enum fpossub_format format);
extern void FPSTRulesFree(struct fpst_rule *r, enum fpossub_format format, int rcnt);
extern void GlyphGroupFree(struct ff_glyphclasses* group);
extern void GlyphGroupKernFree(struct ff_rawoffsets* groupkern);
extern void GlyphGroupKernsFree(struct ff_rawoffsets* root);
extern void GlyphGroupsFree(struct ff_glyphclasses* root);
extern void GlyphVariantsFree(struct glyphvariants *gv);
extern void GradientFree(struct gradient *grad);
extern void GrowBufferAdd(GrowBuf *gb, int ch);
extern void GrowBufferAddStr(GrowBuf *gb, char *str);
extern void GuidelineSetFree(GuidelineSet *gl);
extern void ImageListsFree(ImageList *imgs);
extern void JstfLangFree(struct jstf_lang *jl);
extern void JustifyFree(Justify *just);
extern void KernClassClearSpecialContents(KernClass *kc);
extern void KernClassFreeContents(KernClass *kc);
extern void KernClassListClearSpecialContents(KernClass *kc);
extern void KernClassListFree(KernClass *kc);
extern void KernPairsFree(KernPair *kp);
extern void LayerDefault(Layer *layer);
extern void LayerFreeContents(SplineChar *sc, int layer);
extern void LinearApproxFree(LinearApprox *la);
extern void LineListFree(LineList *ll);
extern void MacFeatListFree(MacFeat *mf);
extern void MacNameListFree(struct macname *mn);
extern void MacSettingListFree(struct macsetting *ms);
extern void MarkClassFree(int cnt, char **classes, char **names);
extern void MarkSetFree(int cnt, char **classes, char **names);
extern void MathKernFree(struct mathkern *mk);
extern void MathKernVContentsFree(struct mathkernvertex *mk);
extern void MinimumDistancesFree(MinimumDistance *md);
extern void MMSetClearSpecial(MMSet *mm);
extern void MMSetFreeContents(MMSet *mm);
extern void OtfFeatNameListFree(struct otffeatname *fn);
extern void OtfNameListFree(struct otfname *on);
extern void OTLookupFree(OTLookup *lookup);
extern void OTLookupListFree(OTLookup *lookup);
extern void PatternFree(struct pattern *pat);
extern void PenCopy(struct pen *into, struct pen *from, real transform[6]);
extern void RefCharFindBounds(RefChar *rf);
extern void RefCharFree(RefChar *ref);
extern void RefCharsFree(RefChar *ref);
extern void SCCategorizePoints(SplineChar *sc);
extern void SCMakeDependent(SplineChar *dependent, SplineChar *base);
extern void SCRefToSplines(SplineChar *sc, RefChar *rf, int layer);
extern void SCReinstanciateRefChar(SplineChar *sc, RefChar *rf, int layer);
extern void SCRemoveDependent(SplineChar *dependent, RefChar *rf, int layer);
extern void SCRemoveDependents(SplineChar *dependent);
extern void SCRemoveLayerDependents(SplineChar *dependent, int layer);
extern void SFInstanciateRefs(SplineFont *sf);
extern void SFReinstanciateRefs(SplineFont *sf);
extern void SFRemoveAnchorClass(SplineFont *sf, AnchorClass *an);
extern void SFRemoveSavedTable(SplineFont *sf, uint32 tag);
extern void SplineCharFindBounds(SplineChar *sc, DBounds *bounds);
extern void SplineCharFreeContents(SplineChar *sc);
extern void SplineCharLayerFindBounds(SplineChar *sc, int layer, DBounds *bounds);
extern void SplineCharLayerQuickBounds(SplineChar *sc, int layer, DBounds *bounds);
extern void SplineCharListsFree(struct splinecharlist *dlist);
extern void SplineCharQuickBounds(SplineChar *sc, DBounds *b);
extern void SplineCharQuickConservativeBounds(SplineChar *sc, DBounds *b);
extern void SplineFindExtrema(const Spline1D *sp, extended *_t1, extended *_t2);
extern void SplineFontClearSpecial(SplineFont *sf);
extern void SplineFontFindBounds(SplineFont *sf, DBounds *bounds);
extern void SplineFontFree(SplineFont *sf);
extern void SplineFontLayerFindBounds(SplineFont *sf, int layer, DBounds *bounds);
extern void SplineFontQuickConservativeBounds(SplineFont *sf, DBounds *b);
extern void SplineFree(Spline *spline);
extern void SplinePointCategorize(SplinePoint *sp);
extern void SplinePointFree(SplinePoint *sp);
extern void SplinePointListFree(SplinePointList *spl);
extern void SplinePointListMDFree(SplineChar *sc, SplinePointList *spl);
extern void SplinePointListSelect(SplinePointList *spl, int sel);
extern void SplinePointListsFree(SplinePointList *spl);
extern void SplinePointListsMDFree(SplineChar *sc, SplinePointList *spl);
extern void SplinePointMDFree(SplineChar *sc, SplinePoint *sp);
extern void SplinePointsFree(SplinePointList *spl);
extern void SplineRemoveExtremaTooClose(Spline1D *sp, extended *_t1, extended *_t2);
extern void SplineSetBeziersClear(SplinePointList *spl);
extern void SplineSetFindBounds(const SplinePointList *spl, DBounds *bounds);
extern void SplineSetQuickBounds(SplineSet *ss, DBounds *b);
extern void SplineSetQuickConservativeBounds(SplineSet *ss, DBounds *b);
extern void SplineSetSpirosClear(SplineSet *spl);
extern void TTFLangNamesFree(struct ttflangname *l);
extern void TtfTablesFree(struct ttf_table *tab);
extern void ValDevFree(ValDevTab *adjust);
extern int KerningClassSeekByAbsoluteIndex(const struct splinefont *sf, int seek_index, struct kernclass **okc, int *oisv, int *oisr, int *ooffset);
extern int HashKerningClassNames(SplineFont *sf, struct glif_name_index * class_name_hash);
extern int HashKerningClassNamesCaps(SplineFont *sf, struct glif_name_index * class_name_hash);
extern int HashKerningClassNamesFlex(SplineFont *sf, struct glif_name_index * class_name_hash, int capitalize);
#endif /* FONTFORGE_SPLINEUTIL_H */

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pdf2htmlEX/src/util/fontforge-20190801/splineutil2.h
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#ifndef FONTFORGE_SPLINEUTIL2_H
#define FONTFORGE_SPLINEUTIL2_H
#include "splinefont.h"
enum ae_type { ae_all, ae_between_selected, ae_only_good, ae_only_good_rm_later };
extern bigreal PathLength(SplineSet *ss);
extern bigreal SplineLengthRange(Spline *spline, real from_t, real to_t);
extern char *GetNextUntitledName(void);
extern int PointListIsSelected(SplinePointList *spl);
extern int PointsDiagonalable(SplineFont *sf, BasePoint **bp, BasePoint *unit);
extern int RealApprox(real a, real b);
extern int RealNearish(real a, real b);
extern int RealRatio(real a, real b, real fudge);
extern int RealWithin(real a, real b, real fudge);
extern int SPInterpolate(const SplinePoint *sp);
extern int SpIsExtremum(SplinePoint *sp);
extern int Spline1DCantExtremeX(const Spline *s);
extern int Spline1DCantExtremeY(const Spline *s);
extern int SplineInSplineSet(Spline *spline, SplineSet *spl);
extern int SplineIsLinearMake(Spline *spline);
extern int SplinePointListIsClockwise(const SplineSet *spl);
extern int SPLNearlyLines(SplineChar *sc, SplineSet *ss, bigreal err);
extern int Within16RoundingErrors(bigreal v1, bigreal v2);
extern int Within4RoundingErrors(bigreal v1, bigreal v2);
extern int Within64RoundingErrors(bigreal v1, bigreal v2);
extern Spline *ApproximateSplineFromPointsSlopes(SplinePoint *from, SplinePoint *to, TPoint *mid, int cnt, int order2);
extern SplineFont *SplineFontBlank(int charcnt);
extern SplineFont *SplineFontEmpty(void);
extern SplineFont *SplineFontNew(void);
extern Spline *PathFindDistance(SplineSet *path, bigreal d, bigreal *_t);
extern SplineSet *SplineCharRemoveTiny(SplineChar *sc, SplineSet *head);
extern SplineSet *SplineCharSimplify(SplineChar *sc, SplineSet *head, struct simplifyinfo *smpl);
extern SplineSet *SplineSetBindToPath(SplineSet *ss, int doscale, int glyph_as_unit, int align, real offset, SplineSet *path);
extern SplineSet *SplineSetJoin(SplineSet *start, int doall, real fudge, int *changed);
extern SplineSet *SplineSetReverse(SplineSet *spl);
extern SplineSet *SplineSetsAntiCorrect(SplineSet *base);
extern SplineSet *SplineSetsCorrect(SplineSet *base, int *changed);
extern SplineSet *SplineSetsDetectDir(SplineSet **_base, int *_lastscan);
extern SplineSet *SplineSetsExtractOpen(SplineSet **tbase);
extern SplineSet *SSRemoveZeroLengthSplines(SplineSet *base);
extern Spline *SplineAddExtrema(Spline *s, int always, real lenbound, real offsetbound, DBounds *b);
extern void BP_HVForce(BasePoint *vector);
extern void CanonicalContours(SplineChar *sc, int layer);
extern void SFIncrementXUID(SplineFont *sf);
extern void SFRandomChangeXUID(SplineFont *sf);
extern void SPAdjustControl(SplinePoint *sp, BasePoint *cp, BasePoint *to, int order2);
extern void SPAverageCps(SplinePoint *sp);
extern void SPHVCurveForce(SplinePoint *sp);
extern void SPLAverageCps(SplinePointList *spl);
extern void SplineCharAddExtrema(SplineChar *sc, SplineSet *head, enum ae_type between_selected, int emsize);
extern void SplineCharDefaultNextCP(SplinePoint *base);
extern void SplineCharDefaultPrevCP(SplinePoint *base);
extern void SplineCharMerge(SplineChar *sc, SplineSet **head, int type);
extern void SplineCharTangentNextCP(SplinePoint *sp);
extern void SplineCharTangentPrevCP(SplinePoint *sp);
extern void SplinePointListSet(SplinePointList *tobase, SplinePointList *frombase);
extern void SplinePointListSimplify(SplineChar *sc, SplinePointList *spl, struct simplifyinfo *smpl);
extern void SplineSetAddExtrema(SplineChar *sc, SplineSet *ss, enum ae_type between_selected, int emsize);
extern void SplineSetJoinCpFixup(SplinePoint *sp);
extern void SplineSetsInsertOpen(SplineSet **tbase, SplineSet *open);
extern void SplineSetsUntick(SplineSet *spl);
extern void SplinesRemoveBetween(SplineChar *sc, SplinePoint *from, SplinePoint *to, int type);
extern void SPLNearlyHvCps(SplineChar *sc, SplineSet *ss, bigreal err);
extern void SPLNearlyHvLines(SplineChar *sc, SplineSet *ss, bigreal err);
extern void SPLsStartToLeftmost(SplineChar *sc, int layer);
extern void SPLStartToLeftmost(SplineChar *sc, SplinePointList *spl, int *changed);
extern void SPSmoothJoint(SplinePoint *sp);
/**
* This is like SPAdjustControl but you have not wanting to move the
* BCP at all, but you would like the current location of the passed
* BCP to reshape the spline through the splinepoint. For example, if
* you drag the spline between two points then you might like to touch
* the inside BCP between the two splinepoints to reshape the whole
* curve through a curve point.
*/
extern void SPTouchControl(SplinePoint *sp, BasePoint *which, int order2);
extern void SPWeightedAverageCps(SplinePoint *sp);
extern void SSOverlapClusterCpAngles(SplineSet *base, bigreal within);
extern void SSRemoveStupidControlPoints(SplineSet *base);
#endif /* FONTFORGE_SPLINEUTIL2_H */

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pdf2htmlEX/src/util/fontforge-20190801/start.h
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#ifndef FONTFORGE_START_H
#define FONTFORGE_START_H
extern void doinitFontForgeMain(void);
extern void doversion(const char *source_version_str);
extern void InitSimpleStuff(void);
#endif /* FONTFORGE_START_H */

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pdf2htmlEX/src/util/fontforge-20190801/tottf.h
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#ifndef FONTFORGE_TOTTF_H
#define FONTFORGE_TOTTF_H
#include "splinefont.h"
#include "ttf.h"
extern char *utf8_verify_copy(const char *str);
extern int32 filechecksum(FILE *file);
extern int AlreadyMSSymbolArea(SplineFont *sf, EncMap *map);
extern int RefDepth(RefChar *ref, int layer);
extern int SFFigureDefWidth(SplineFont *sf, int *_nomwid);
extern int SFHasInstructions(SplineFont *sf);
extern int SSAddPoints(SplineSet *ss, int ptcnt, BasePoint *bp, char *flags);
extern int ttfcopyfile(FILE *ttf, FILE *other, int pos, const char *tab_name);
extern int WriteTTC(const char *filename, struct sflist *sfs, enum fontformat format, enum bitmapformat bf, int flags, int layer, enum ttc_flags ttcflags);
extern int WriteTTFFont(char *fontname, SplineFont *sf, enum fontformat format, int32 *bsizes, enum bitmapformat bf, int flags, EncMap *enc, int layer);
extern int _WriteTTFFont(FILE *ttf, SplineFont *sf, enum fontformat format, int32 *bsizes, enum bitmapformat bf, int flags, EncMap *enc, int layer);
extern int _WriteType42SFNTS(FILE *type42, SplineFont *sf, enum fontformat format, int flags, EncMap *enc, int layer);
extern void cvt_unix_to_1904(long long time, int32 result[2]);
extern void DefaultTTFEnglishNames(struct ttflangname *dummy, SplineFont *sf);
extern void OS2FigureCodePages(SplineFont *sf, uint32 CodePage[2]);
extern void OS2FigureUnicodeRanges(SplineFont *sf, uint32 Ranges[4]);
extern void SFDefaultOS2Info(struct pfminfo *pfminfo, SplineFont *sf, char *fontname);
extern void SFDefaultOS2Simple(struct pfminfo *pfminfo, SplineFont *sf);
extern void SFDefaultOS2SubSuper(struct pfminfo *pfminfo, int emsize, double italic_angle);
extern void SFDummyUpCIDs(struct glyphinfo *gi, SplineFont *sf);
extern void putfixed(FILE *file, real dval);
extern void putlong(FILE *file, int val);
extern void putshort(FILE *file, int sval);
#endif /* FONTFORGE_TOTTF_H */