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-rw-r--r--Build/source/texk/web2c/pdftexdir/pdftoepdf-poppler0.68.0.cc1113
1 files changed, 0 insertions, 1113 deletions
diff --git a/Build/source/texk/web2c/pdftexdir/pdftoepdf-poppler0.68.0.cc b/Build/source/texk/web2c/pdftexdir/pdftoepdf-poppler0.68.0.cc
deleted file mode 100644
index 00d82436a97..00000000000
--- a/Build/source/texk/web2c/pdftexdir/pdftoepdf-poppler0.68.0.cc
+++ /dev/null
@@ -1,1113 +0,0 @@
-/*
-Copyright 1996-2017 Han The Thanh, <thanh@pdftex.org>
-
-This file is part of pdfTeX.
-
-pdfTeX is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-pdfTeX is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along
-with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/*
-This is based on the patch texlive-poppler-0.59.patch <2017-09-19> at
-https://git.archlinux.org/svntogit/packages.git/plain/texlive-bin/trunk
-by Arch Linux. A little modifications are made to avoid a crash for
-some kind of pdf images, such as figure_missing.pdf in gnuplot.
-The poppler should be 0.59.0, ..., 0.68.0.
-POPPLER_VERSION should be defined.
-*/
-
-/* Do this early in order to avoid a conflict between
- MINGW32 <rpcndr.h> defining 'boolean' as 'unsigned char' and
- <kpathsea/types.h> defining Pascal's boolean as 'int'.
-*/
-#include <w2c/config.h>
-#include <kpathsea/lib.h>
-
-#include <stdlib.h>
-#include <math.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-
-#ifdef POPPLER_VERSION
-#include <dirent.h>
-#include <poppler-config.h>
-#include <goo/GooString.h>
-#include <goo/gmem.h>
-#include <goo/gfile.h>
-#define GString GooString
-#else
-#error POPPLER_VERSION should be defined.
-#endif
-#include <assert.h>
-
-#include "Object.h"
-#include "Stream.h"
-#include "Array.h"
-#include "Dict.h"
-#include "XRef.h"
-#include "Catalog.h"
-#include "Link.h"
-#include "Page.h"
-#include "GfxFont.h"
-#include "PDFDoc.h"
-#include "GlobalParams.h"
-#include "Error.h"
-
-// This file is mostly C and not very much C++; it's just used to interface
-// the functions of xpdf, which are written in C++.
-
-extern "C" {
-#include <pdftexdir/ptexmac.h>
-#include <pdftexdir/pdftex-common.h>
-
-// These functions from pdftex.web gets declared in pdftexcoerce.h in the
-// usual web2c way, but we cannot include that file here because C++
-// does not allow it.
-extern int getpdfsuppresswarningpagegroup(void);
-extern integer getpdfsuppressptexinfo(void);
-extern integer zround(double);
-}
-
-// The prefix "PTEX" for the PDF keys is special to pdfTeX;
-// this has been registered with Adobe by Hans Hagen.
-
-#define pdfkeyprefix "PTEX"
-
-#define MASK_SUPPRESS_PTEX_FULLBANNER 0x01
-#define MASK_SUPPRESS_PTEX_FILENAME 0x02
-#define MASK_SUPPRESS_PTEX_PAGENUMBER 0x04
-#define MASK_SUPPRESS_PTEX_INFODICT 0x08
-
-// When copying the Resources of the selected page, all objects are copied
-// recusively top-down. Indirect objects however are not fetched during
-// copying, but get a new object number from pdfTeX and then will be
-// appended into a linked list. Duplicates are checked and removed from the
-// list of indirect objects during appending.
-
-enum InObjType {
- objFont,
- objFontDesc,
- objOther
-};
-
-struct InObj {
- Ref ref; // ref in original PDF
- InObjType type; // object type
- InObj *next; // next entry in list of indirect objects
- int num; // new object number in output PDF
- fd_entry *fd; // pointer to /FontDescriptor object structure
- int enc_objnum; // Encoding for objFont
- int written; // has it been written to output PDF?
-};
-
-struct UsedEncoding {
- int enc_objnum;
- GfxFont *font;
- UsedEncoding *next;
-};
-
-static InObj *inObjList;
-static UsedEncoding *encodingList;
-static GBool isInit = gFalse;
-
-// --------------------------------------------------------------------
-// Maintain list of open embedded PDF files
-// --------------------------------------------------------------------
-
-struct PdfDocument {
- char *file_name;
- PDFDoc *doc;
- XRef *xref;
- InObj *inObjList;
- int occurences; // number of references to the document; the doc can be
- // deleted when this is negative
- PdfDocument *next;
-};
-
-static PdfDocument *pdfDocuments = 0;
-
-static XRef *xref = 0;
-
-// Returns pointer to PdfDocument record for PDF file.
-// Creates a new record if it doesn't exist yet.
-// xref is made current for the document.
-
-static PdfDocument *find_add_document(char *file_name)
-{
- PdfDocument *p = pdfDocuments;
- while (p && strcmp(p->file_name, file_name) != 0)
- p = p->next;
- if (p) {
- xref = p->xref;
- (p->occurences)++;
- return p;
- }
- p = new PdfDocument;
- p->file_name = xstrdup(file_name);
- p->xref = xref = 0;
- p->occurences = 0;
- GString *docName = new GString(p->file_name);
- p->doc = new PDFDoc(docName); // takes ownership of docName
- if (!p->doc->isOk() || !p->doc->okToPrint()) {
- pdftex_fail("xpdf: reading PDF image failed");
- }
- p->inObjList = 0;
- p->next = pdfDocuments;
- pdfDocuments = p;
- return p;
-}
-
-// Deallocate a PdfDocument with all its resources
-
-static void delete_document(PdfDocument * pdf_doc)
-{
- PdfDocument **p = &pdfDocuments;
- while (*p && *p != pdf_doc)
- p = &((*p)->next);
- // should not happen:
- if (!*p)
- return;
- // unlink from list
- *p = pdf_doc->next;
- // free pdf_doc's resources
- InObj *r, *n;
- for (r = pdf_doc->inObjList; r != 0; r = n) {
- n = r->next;
- delete r;
- }
- xref = pdf_doc->xref;
- delete pdf_doc->doc;
- xfree(pdf_doc->file_name);
- delete pdf_doc;
-}
-
-// --------------------------------------------------------------------
-
-static int addEncoding(GfxFont * gfont)
-{
- UsedEncoding *n;
- n = new UsedEncoding;
- n->next = encodingList;
- encodingList = n;
- n->font = gfont;
- n->enc_objnum = pdfnewobjnum();
- return n->enc_objnum;
-}
-
-#define addFont(ref, fd, enc_objnum) \
- addInObj(objFont, ref, fd, enc_objnum)
-
-// addFontDesc is only used to avoid writing the original FontDescriptor
-// from the PDF file.
-
-#define addFontDesc(ref, fd) \
- addInObj(objFontDesc, ref, fd, 0)
-
-#define addOther(ref) \
- addInObj(objOther, ref, 0, 0)
-
-static int addInObj(InObjType type, Ref ref, fd_entry * fd, int e)
-{
- InObj *p, *q, *n = new InObj;
- if (ref.num == 0)
- pdftex_fail("PDF inclusion: invalid reference");
- n->ref = ref;
- n->type = type;
- n->next = 0;
- n->fd = fd;
- n->enc_objnum = e;
- n->written = 0;
- if (inObjList == 0)
- inObjList = n;
- else {
- for (p = inObjList; p != 0; p = p->next) {
- if (p->ref.num == ref.num && p->ref.gen == ref.gen) {
- delete n;
- return p->num;
- }
- q = p;
- }
- // it is important to add new objects at the end of the list,
- // because new objects are being added while the list is being
- // written out.
- q->next = n;
- }
- if (type == objFontDesc)
- n->num = get_fd_objnum(fd);
- else
- n->num = pdfnewobjnum();
- return n->num;
-}
-
-#if 0 /* unusewd */
-static int getNewObjectNumber(Ref ref)
-{
- InObj *p;
- if (inObjList == 0) {
- pdftex_fail("No objects copied yet");
- } else {
- for (p = inObjList; p != 0; p = p->next) {
- if (p->ref.num == ref.num && p->ref.gen == ref.gen) {
- return p->num;
- }
- }
- pdftex_fail("Object not yet copied: %i %i", ref.num, ref.gen);
- }
-#ifdef _MSC_VER
- /* Never reached, but without __attribute__((noreturn)) for pdftex_fail()
- MSVC 5.0 requires an int return value. */
- return -60000;
-#endif
-}
-#endif
-
-static void copyObject(Object *);
-
-static void copyName(char *s)
-{
- pdf_puts("/");
- for (; *s != 0; s++) {
- if (isdigit(*s) || isupper(*s) || islower(*s) || *s == '_' ||
- *s == '.' || *s == '-' || *s == '+')
- pdfout(*s);
- else
- pdf_printf("#%.2X", *s & 0xFF);
- }
-}
-
-static void copyDictEntry(Object * obj, int i)
-{
- Object obj1;
- copyName((char *)obj->dictGetKey(i));
- pdf_puts(" ");
- obj1 = obj->dictGetValNF(i);
- copyObject(&obj1);
- pdf_puts("\n");
-}
-
-static void copyDict(Object * obj)
-{
- int i, l;
- if (!obj->isDict())
- pdftex_fail("PDF inclusion: invalid dict type <%s>",
- obj->getTypeName());
- for (i = 0, l = obj->dictGetLength(); i < l; ++i)
- copyDictEntry(obj, i);
-}
-
-static void copyFontDict(Object * obj, InObj * r)
-{
- int i, l;
- char *key;
- if (!obj->isDict())
- pdftex_fail("PDF inclusion: invalid dict type <%s>",
- obj->getTypeName());
- pdf_puts("<<\n");
- assert(r->type == objFont); // FontDescriptor is in fd_tree
- for (i = 0, l = obj->dictGetLength(); i < l; ++i) {
- key = obj->dictGetKey(i);
- if (strncmp("FontDescriptor", key, strlen("FontDescriptor")) == 0
- || strncmp("BaseFont", key, strlen("BaseFont")) == 0
- || strncmp("Encoding", key, strlen("Encoding")) == 0)
- continue; // skip original values
- copyDictEntry(obj, i);
- }
- // write new FontDescriptor, BaseFont, and Encoding
- pdf_printf("/FontDescriptor %d 0 R\n", get_fd_objnum(r->fd));
- pdf_printf("/BaseFont %d 0 R\n", get_fn_objnum(r->fd));
- pdf_printf("/Encoding %d 0 R\n", r->enc_objnum);
- pdf_puts(">>");
-}
-
-static void copyStream(Stream * str)
-{
- int c, c2 = 0;
- str->reset();
- while ((c = str->getChar()) != EOF) {
- pdfout(c);
- c2 = c;
- }
- pdflastbyte = c2;
-}
-
-static void copyProcSet(Object * obj)
-{
- int i, l;
- Object procset;
- if (!obj->isArray())
- pdftex_fail("PDF inclusion: invalid ProcSet array type <%s>",
- obj->getTypeName());
- pdf_puts("/ProcSet [ ");
- for (i = 0, l = obj->arrayGetLength(); i < l; ++i) {
- procset = obj->arrayGetNF(i);
- if (!procset.isName())
- pdftex_fail("PDF inclusion: invalid ProcSet entry type <%s>",
- procset.getTypeName());
- copyName((char *)procset.getName());
- pdf_puts(" ");
- }
- pdf_puts("]\n");
-}
-
-#define REPLACE_TYPE1C true
-
-static bool embeddableFont(Object * fontdesc)
-{
- Object fontfile, ffsubtype;
-
- if (!fontdesc->isDict())
- return false;
- fontfile = fontdesc->dictLookup("FontFile");
- if (fontfile.isStream())
- return true;
- if (REPLACE_TYPE1C) {
- fontfile = fontdesc->dictLookup("FontFile3");
- if (!fontfile.isStream())
- return false;
- ffsubtype = fontfile.streamGetDict()->lookup("Subtype");
- return ffsubtype.isName() && !strcmp(ffsubtype.getName(), "Type1C");
- }
- return false;
-}
-
-static void copyFont(char *tag, Object * fontRef)
-{
- Object fontdict, subtype, basefont, fontdescRef, fontdesc, charset,
- stemV;
- GfxFont *gfont;
- fd_entry *fd;
- fm_entry *fontmap;
- // Check whether the font has already been embedded before analysing it.
- InObj *p;
- Ref ref = fontRef->getRef();
- for (p = inObjList; p; p = p->next) {
- if (p->ref.num == ref.num && p->ref.gen == ref.gen) {
- copyName(tag);
- pdf_printf(" %d 0 R ", p->num);
- return;
- }
- }
- // Only handle included Type1 (and Type1C) fonts; anything else will be copied.
- // Type1C fonts are replaced by Type1 fonts, if REPLACE_TYPE1C is true.
- fontdict = fontRef->fetch(xref);
- fontdesc = Object(objNull);
- if (fontdict.isDict()) {
- subtype = fontdict.dictLookup("Subtype");
- basefont = fontdict.dictLookup("BaseFont");
- fontdescRef = fontdict.dictLookupNF("FontDescriptor");
- if (fontdescRef.isRef()) {
- fontdesc = fontdescRef.fetch(xref);
- }
- }
- if (!fixedinclusioncopyfont && fontdict.isDict()
- && subtype.isName()
- && !strcmp(subtype.getName(), "Type1")
- && basefont.isName()
- && fontdescRef.isRef()
- && fontdesc.isDict()
- && embeddableFont(&fontdesc)
- && (fontmap = lookup_fontmap((char *)basefont.getName())) != NULL) {
- // round /StemV value, since the PDF input is a float
- // (see Font Descriptors in PDF reference), but we only store an
- // integer, since we don't want to change the struct.
- stemV = fontdesc.dictLookup("StemV");
- fd = epdf_create_fontdescriptor(fontmap, zround(stemV.getNum()));
- charset = fontdesc.dictLookup("CharSet");
- if (!charset.isNull() &&
- charset.isString() && is_subsetable(fontmap))
- epdf_mark_glyphs(fd, (char *)charset.getString()->getCString());
- else
- embed_whole_font(fd);
- addFontDesc(fontdescRef.getRef(), fd);
- copyName(tag);
- gfont = GfxFont::makeFont(xref, tag, fontRef->getRef(),
- fontdict.getDict());
- pdf_printf(" %d 0 R ", addFont(fontRef->getRef(), fd,
- addEncoding(gfont)));
- } else {
- copyName(tag);
- pdf_puts(" ");
- copyObject(fontRef);
- }
-}
-
-static void copyFontResources(Object * obj)
-{
- Object fontRef;
- int i, l;
- if (!obj->isDict())
- pdftex_fail("PDF inclusion: invalid font resources dict type <%s>",
- obj->getTypeName());
- pdf_puts("/Font << ");
- for (i = 0, l = obj->dictGetLength(); i < l; ++i) {
- fontRef = obj->dictGetValNF(i);
- if (fontRef.isRef())
- copyFont(obj->dictGetKey(i), &fontRef);
- else if (fontRef.isDict()) { // some programs generate pdf with embedded font object
- copyName((char *)obj->dictGetKey(i));
- pdf_puts(" ");
- copyObject(&fontRef);
- }
- else
- pdftex_fail("PDF inclusion: invalid font in reference type <%s>",
- fontRef.getTypeName());
- }
- pdf_puts(">>\n");
-}
-
-static void copyOtherResources(Object * obj, char *key)
-{
- // copies all other resources (write_epdf handles Fonts and ProcSets),
-
- // if Subtype is present, it must be a name
- if (strcmp("Subtype", key) == 0) {
- if (!obj->isName()) {
- pdftex_warn("PDF inclusion: Subtype in Resources dict is not a name"
- " (key '%s', type <%s>); ignored.",
- key, obj->getTypeName());
- return;
- }
- } else if (!obj->isDict()) {
- //FIXME: Write the message only to the log file
- pdftex_warn("PDF inclusion: invalid other resource which is no dict"
- " (key '%s', type <%s>); ignored.",
- key, obj->getTypeName());
- return;
- }
- copyName(key);
- pdf_puts(" ");
- copyObject(obj);
-}
-
-// Function onverts double to string; very small and very large numbers
-// are NOT converted to scientific notation.
-// n must be a number or real conforming to the implementation limits
-// of PDF as specified in appendix C.1 of the PDF Ref.
-// These are:
-// maximum value of ints is +2^32
-// maximum value of reals is +2^15
-// smalles values of reals is 1/(2^16)
-
-static char *convertNumToPDF(double n)
-{
- static const int precision = 6;
- static const int fact = (int) 1E6; // must be 10^precision
- static const double epsilon = 0.5E-6; // 2epsilon must be 10^-precision
- static char buf[64];
- // handle very small values: return 0
- if (fabs(n) < epsilon) {
- buf[0] = '0';
- buf[1] = '\0';
- } else {
- char ints[64];
- int bindex = 0, sindex = 0;
- int ival, fval;
- // handle the sign part if n is negative
- if (n < 0) {
- buf[bindex++] = '-';
- n = -n;
- }
- n += epsilon; // for rounding
- // handle the integer part, simply with sprintf
- ival = (int) floor(n);
- n -= ival;
- sprintf(ints, "%d", ival);
- while (ints[sindex] != 0)
- buf[bindex++] = ints[sindex++];
- // handle the fractional part up to 'precision' digits
- fval = (int) floor(n * fact);
- if (fval) {
- // set a dot
- buf[bindex++] = '.';
- sindex = bindex + precision;
- buf[sindex--] = '\0';
- // fill up trailing zeros with the string terminator NULL
- while (((fval % 10) == 0) && (sindex >= bindex)) {
- buf[sindex--] = '\0';
- fval /= 10;
- }
- // fill up the fractional part back to front
- while (sindex >= bindex) {
- buf[sindex--] = (fval % 10) + '0';
- fval /= 10;
- }
- } else
- buf[bindex++] = 0;
- }
- return (char *) buf;
-}
-
-static void copyObject(Object * obj)
-{
- Object obj1;
- int i, l, c;
- Ref ref;
- char *p;
- GString *s;
- if (obj->isBool()) {
- pdf_printf("%s", obj->getBool()? "true" : "false");
- } else if (obj->isInt()) {
- pdf_printf("%i", obj->getInt());
- } else if (obj->isReal()) {
- pdf_printf("%s", convertNumToPDF(obj->getReal()));
- } else if (obj->isNum()) {
- pdf_printf("%s", convertNumToPDF(obj->getNum()));
- } else if (obj->isString()) {
- s = (GooString *)obj->getString();
- p = s->getCString();
- l = s->getLength();
- if (strlen(p) == (unsigned int) l) {
- pdf_puts("(");
- for (; *p != 0; p++) {
- c = (unsigned char) *p;
- if (c == '(' || c == ')' || c == '\\')
- pdf_printf("\\%c", c);
- else if (c < 0x20 || c > 0x7F)
- pdf_printf("\\%03o", c);
- else
- pdfout(c);
- }
- pdf_puts(")");
- } else {
- pdf_puts("<");
- for (i = 0; i < l; i++) {
- c = s->getChar(i) & 0xFF;
- pdf_printf("%.2x", c);
- }
- pdf_puts(">");
- }
- } else if (obj->isName()) {
- copyName((char *)obj->getName());
- } else if (obj->isNull()) {
- pdf_puts("null");
- } else if (obj->isArray()) {
- pdf_puts("[");
- for (i = 0, l = obj->arrayGetLength(); i < l; ++i) {
- obj1 = obj->arrayGetNF(i);
- if (!obj1.isName())
- pdf_puts(" ");
- copyObject(&obj1);
- }
- pdf_puts("]");
- } else if (obj->isDict()) {
- pdf_puts("<<\n");
- copyDict(obj);
- pdf_puts(">>");
- } else if (obj->isStream()) {
- pdf_puts("<<\n");
- copyDict(obj->getStream()->getDictObject());
- pdf_puts(">>\n");
- pdf_puts("stream\n");
- copyStream(obj->getStream()->getUndecodedStream());
- pdf_puts("\nendstream");
- } else if (obj->isRef()) {
- ref = obj->getRef();
- if (ref.num == 0) {
- pdftex_fail
- ("PDF inclusion: reference to invalid object"
- " (is the included pdf broken?)");
- } else
- pdf_printf("%d 0 R", addOther(ref));
- } else {
- pdftex_fail("PDF inclusion: type <%s> cannot be copied",
- obj->getTypeName());
- }
-}
-
-static void writeRefs()
-{
- InObj *r;
- for (r = inObjList; r != 0; r = r->next) {
- if (!r->written) {
- r->written = 1;
- Object obj1 = xref->fetch(r->ref.num, r->ref.gen);
- if (r->type == objFont) {
- assert(!obj1.isStream());
- pdfbeginobj(r->num, 2); // \pdfobjcompresslevel = 2 is for this
- copyFontDict(&obj1, r);
- pdf_puts("\n");
- pdfendobj();
- } else if (r->type != objFontDesc) { // /FontDescriptor is written via write_fontdescriptor()
- if (obj1.isStream())
- pdfbeginobj(r->num, 0);
- else
- pdfbeginobj(r->num, 2); // \pdfobjcompresslevel = 2 is for this
- copyObject(&obj1);
- pdf_puts("\n");
- pdfendobj();
- }
- }
- }
-}
-
-static void writeEncodings()
-{
- UsedEncoding *r, *n;
- char *glyphNames[256], *s;
- int i;
- for (r = encodingList; r != 0; r = r->next) {
- for (i = 0; i < 256; i++) {
- if (r->font->isCIDFont()) {
- pdftex_fail
- ("PDF inclusion: CID fonts are not supported"
- " (try to disable font replacement to fix this)");
- }
- if ((s = ((Gfx8BitFont *) r->font)->getCharName(i)) != 0)
- glyphNames[i] = s;
- else
- glyphNames[i] = notdef;
- }
- epdf_write_enc(glyphNames, r->enc_objnum);
- }
- for (r = encodingList; r != 0; r = n) {
- n = r->next;
-#ifdef POPPLER_VERSION
- r->font->decRefCnt();
-#else
-#error POPPLER_VERSION should be defined.
-#endif
- delete r;
- }
-}
-
-// get the pagebox according to the pagebox_spec
-static PDFRectangle *get_pagebox(Page * page, int pagebox_spec)
-{
- if (pagebox_spec == pdfboxspecmedia)
- return page->getMediaBox();
- else if (pagebox_spec == pdfboxspeccrop)
- return page->getCropBox();
- else if (pagebox_spec == pdfboxspecbleed)
- return page->getBleedBox();
- else if (pagebox_spec == pdfboxspectrim)
- return page->getTrimBox();
- else if (pagebox_spec == pdfboxspecart)
- return page->getArtBox();
- else
- pdftex_fail("PDF inclusion: unknown value of pagebox spec (%i)",
- (int) pagebox_spec);
- return page->getMediaBox(); // to make the compiler happy
-}
-
-
-// Reads various information about the PDF and sets it up for later inclusion.
-// This will fail if the PDF version of the PDF is higher than
-// minor_pdf_version_wanted or page_name is given and can not be found.
-// It makes no sense to give page_name _and_ page_num.
-// Returns the page number.
-
-int
-read_pdf_info(char *image_name, char *page_name, int page_num,
- int pagebox_spec, int major_pdf_version_wanted, int minor_pdf_version_wanted,
- int pdf_inclusion_errorlevel)
-{
- PdfDocument *pdf_doc;
- Page *page;
- PDFRectangle *pagebox;
-#ifdef POPPLER_VERSION
- int pdf_major_version_found, pdf_minor_version_found;
-#else
-#error POPPLER_VERSION should be defined.
-#endif
- // initialize
- if (!isInit) {
- globalParams = new GlobalParams();
- globalParams->setErrQuiet(gFalse);
- isInit = gTrue;
- }
- // open PDF file
- pdf_doc = find_add_document(image_name);
- epdf_doc = (void *) pdf_doc;
-
- // check PDF version
- // this works only for PDF 1.x -- but since any versions of PDF newer
- // than 1.x will not be backwards compatible to PDF 1.x, pdfTeX will
- // then have to changed drastically anyway.
-#ifdef POPPLER_VERSION
- pdf_major_version_found = pdf_doc->doc->getPDFMajorVersion();
- pdf_minor_version_found = pdf_doc->doc->getPDFMinorVersion();
- if ((pdf_major_version_found > major_pdf_version_wanted)
- || (pdf_minor_version_found > minor_pdf_version_wanted)) {
- const char *msg =
- "PDF inclusion: found PDF version <%d.%d>, but at most version <%d.%d> allowed";
- if (pdf_inclusion_errorlevel > 0) {
- pdftex_fail(msg, pdf_major_version_found, pdf_minor_version_found, major_pdf_version_wanted, minor_pdf_version_wanted);
- } else if (pdf_inclusion_errorlevel < 0) {
- ; /* do nothing */
- } else { /* = 0, give warning */
- pdftex_warn(msg, pdf_major_version_found, pdf_minor_version_found, major_pdf_version_wanted, minor_pdf_version_wanted);
- }
- }
-#else
-#error POPPLER_VERSION should be defined.
-#endif
- epdf_num_pages = pdf_doc->doc->getCatalog()->getNumPages();
- if (page_name) {
- // get page by name
- GString name(page_name);
- LinkDest *link = pdf_doc->doc->findDest(&name);
- if (link == 0 || !link->isOk())
- pdftex_fail("PDF inclusion: invalid destination <%s>", page_name);
- Ref ref = link->getPageRef();
- page_num = pdf_doc->doc->getCatalog()->findPage(ref.num, ref.gen);
- if (page_num == 0)
- pdftex_fail("PDF inclusion: destination is not a page <%s>",
- page_name);
- delete link;
- } else {
- // get page by number
- if (page_num <= 0 || page_num > epdf_num_pages)
- pdftex_fail("PDF inclusion: required page does not exist <%i>",
- epdf_num_pages);
- }
- // get the required page
- page = pdf_doc->doc->getCatalog()->getPage(page_num);
-
- // get the pagebox (media, crop...) to use.
- pagebox = get_pagebox(page, pagebox_spec);
- if (pagebox->x2 > pagebox->x1) {
- epdf_orig_x = pagebox->x1;
- epdf_width = pagebox->x2 - pagebox->x1;
- } else {
- epdf_orig_x = pagebox->x2;
- epdf_width = pagebox->x1 - pagebox->x2;
- }
- if (pagebox->y2 > pagebox->y1) {
- epdf_orig_y = pagebox->y1;
- epdf_height = pagebox->y2 - pagebox->y1;
- } else {
- epdf_orig_y = pagebox->y2;
- epdf_height = pagebox->y1 - pagebox->y2;
- }
-
- // get page rotation
- epdf_rotate = page->getRotate() % 360;
- if (epdf_rotate < 0)
- epdf_rotate += 360;
-
- // page group
- if (page->getGroup() != NULL)
- epdf_has_page_group = 1; // only flag that page group is present;
- // the actual object number will be
- // generated in pdftex.web
- else
- epdf_has_page_group = 0; // no page group present
-
- pdf_doc->xref = pdf_doc->doc->getXRef();
- return page_num;
-}
-
-// writes the current epf_doc.
-// Here the included PDF is copied, so most errors that can happen during PDF
-// inclusion will arise here.
-
-void write_epdf(void)
-{
- Page *page;
- Ref *pageRef;
- Dict *pageDict;
- Object contents, obj1, obj2, pageObj, dictObj;
- Object groupDict;
- bool writeSepGroup = false;
- Object info;
- char *key;
- char s[256];
- int i, l;
- int rotate;
- double scale[6] = { 0, 0, 0, 0, 0, 0 };
- bool writematrix = false;
- int suppress_ptex_info = getpdfsuppressptexinfo();
- static const char *pageDictKeys[] = {
- "LastModified",
- "Metadata",
- "PieceInfo",
- "SeparationInfo",
-// "Group",
-// "Resources",
- NULL
- };
-
- PdfDocument *pdf_doc = (PdfDocument *) epdf_doc;
- (pdf_doc->occurences)--;
- xref = pdf_doc->xref;
- inObjList = pdf_doc->inObjList;
- encodingList = 0;
- page = pdf_doc->doc->getCatalog()->getPage(epdf_selected_page);
- pageRef = pdf_doc->doc->getCatalog()->getPageRef(epdf_selected_page);
- pageObj = xref->fetch(pageRef->num, pageRef->gen);
- pageDict = pageObj.getDict();
- rotate = page->getRotate();
- PDFRectangle *pagebox;
- // write the Page header
- pdf_puts("/Type /XObject\n");
- pdf_puts("/Subtype /Form\n");
- pdf_puts("/FormType 1\n");
-
- // write additional information
- if ((suppress_ptex_info & MASK_SUPPRESS_PTEX_FILENAME) == 0) {
- pdf_printf("/%s.FileName (%s)\n", pdfkeyprefix,
- convertStringToPDFString(pdf_doc->file_name,
- strlen(pdf_doc->file_name)));
- }
- if ((suppress_ptex_info & MASK_SUPPRESS_PTEX_PAGENUMBER) == 0) {
- pdf_printf("/%s.PageNumber %i\n", pdfkeyprefix, (int) epdf_selected_page);
- }
- if ((suppress_ptex_info & MASK_SUPPRESS_PTEX_INFODICT) == 0) {
- info = pdf_doc->doc->getDocInfoNF();
- if (info.isRef()) {
- // the info dict must be indirect (PDF Ref p. 61)
- pdf_printf("/%s.InfoDict ", pdfkeyprefix);
- pdf_printf("%d 0 R\n", addOther(info.getRef()));
- }
- }
- // get the pagebox (media, crop...) to use.
- pagebox = get_pagebox(page, epdf_page_box);
-
- // handle page rotation
- if (rotate != 0) {
- if (rotate % 90 == 0) {
- // this handles only the simple case: multiple of 90s but these
- // are the only values allowed according to the reference
- // (v1.3, p. 78).
- // the image is rotated around its center.
- // the /Rotate key is clockwise while the matrix is
- // counterclockwise :-%
- tex_printf(", page is rotated %d degrees", rotate);
- switch (rotate) {
- case 90:
- scale[1] = -1;
- scale[2] = 1;
- scale[4] = pagebox->x1 - pagebox->y1;
- scale[5] = pagebox->y1 + pagebox->x2;
- writematrix = true;
- break;
- case 180:
- scale[0] = scale[3] = -1;
- scale[4] = pagebox->x1 + pagebox->x2;
- scale[5] = pagebox->y1 + pagebox->y2;
- writematrix = true;
- break; // width and height are exchanged
- case 270:
- scale[1] = 1;
- scale[2] = -1;
- scale[4] = pagebox->x1 + pagebox->y2;
- scale[5] = pagebox->y1 - pagebox->x1;
- writematrix = true;
- break;
- }
- if (writematrix) { // The matrix is only written if the image is rotated.
- sprintf(s, "/Matrix [%.8f %.8f %.8f %.8f %.8f %.8f]\n",
- scale[0],
- scale[1], scale[2], scale[3], scale[4], scale[5]);
- pdf_puts(stripzeros(s));
- }
- }
- }
-
- sprintf(s, "/BBox [%.8f %.8f %.8f %.8f]\n",
- pagebox->x1, pagebox->y1, pagebox->x2, pagebox->y2);
- pdf_puts(stripzeros(s));
-
- // Metadata validity check (as a stream it must be indirect)
- dictObj = pageDict->lookupNF("Metadata");
- if (!dictObj.isNull() && !dictObj.isRef())
- pdftex_warn("PDF inclusion: /Metadata must be indirect object");
-
- // copy selected items in Page dictionary except Resources & Group
- for (i = 0; pageDictKeys[i] != NULL; i++) {
- dictObj = pageDict->lookupNF(pageDictKeys[i]);
- if (!dictObj.isNull()) {
- pdf_newline();
- pdf_printf("/%s ", pageDictKeys[i]);
- copyObject(&dictObj); // preserves indirection
- }
- }
-
- // handle page group
- dictObj = pageDict->lookupNF("Group");
- if (!dictObj.isNull()) {
- if (pdfpagegroupval == 0) {
- // another pdf with page group was included earlier on the
- // same page; copy the Group entry as is. See manual for
- // info on why this is a warning.
- if (getpdfsuppresswarningpagegroup() == 0) {
- pdftex_warn
- ("PDF inclusion: multiple pdfs with page group included in a single page");
- }
- pdf_newline();
- pdf_puts("/Group ");
- copyObject(&dictObj);
- } else {
- // write Group dict as a separate object, since the Page dict also refers to it
- dictObj = pageDict->lookup("Group");
- if (!dictObj.isDict())
- pdftex_fail("PDF inclusion: /Group dict missing");
- writeSepGroup = true;
-/*
-This part is only a single line
- groupDict = Object(page->getGroup());
-in the original patch. In this case, however, pdftex crashes at
-"delete pdf_doc->doc" in "delete_document()" for inclusion of some
-kind of pdf images, for example, figure_missing.pdf in gnuplot.
-A change
- groupDict = Object(page->getGroup()).copy();
-does not improve the situation.
-The changes below seem to work fine.
-*/
-// begin modification
- groupDict = pageDict->lookup("Group");
- const Dict& dic1 = page->getGroup();
- const Dict& dic2 = groupDict.getDict();
- // replace dic2 in groupDict with dic1
- l = dic2.getLength();
- for (i = 0; i < l; i++) {
- groupDict.dictRemove(dic2.getKey(i));
- }
- l = dic1.getLength();
- for (i = 0; i < l; i++) {
- groupDict.dictAdd(copyString(dic1.getKey(i)),
- dic1.getValNF(i));
- }
-// end modification
- pdf_printf("/Group %ld 0 R\n", (long)pdfpagegroupval);
- }
- }
-
- // write the Resources dictionary
- if (page->getResourceDict() == NULL) {
- // Resources can be missing (files without them have been spotted
- // in the wild); in which case the /Resouces of the /Page will be used.
- // "This practice is not recommended".
- pdftex_warn
- ("PDF inclusion: /Resources missing. 'This practice is not recommended' (PDF Ref)");
- } else {
- Object *obj1 = page->getResourceDictObject();
- if (!obj1->isDict())
- pdftex_fail("PDF inclusion: invalid resources dict type <%s>",
- obj1->getTypeName());
- pdf_newline();
- pdf_puts("/Resources <<\n");
- for (i = 0, l = obj1->dictGetLength(); i < l; ++i) {
- obj2 = obj1->dictGetVal(i);
- key = obj1->dictGetKey(i);
- if (strcmp("Font", key) == 0)
- copyFontResources(&obj2);
- else if (strcmp("ProcSet", key) == 0)
- copyProcSet(&obj2);
- else
- copyOtherResources(&obj2, key);
- }
- pdf_puts(">>\n");
- }
-
- // write the page contents
- contents = page->getContents();
- if (contents.isStream()) {
-
- // Variant A: get stream and recompress under control
- // of \pdfcompresslevel
- //
- // pdfbeginstream();
- // copyStream(contents->getStream());
- // pdfendstream();
-
- // Variant B: copy stream without recompressing
- //
- obj1 = contents.streamGetDict()->lookup("F");
- if (!obj1.isNull()) {
- pdftex_fail("PDF inclusion: Unsupported external stream");
- }
- obj1 = contents.streamGetDict()->lookup("Length");
- assert(!obj1.isNull());
- pdf_puts("/Length ");
- copyObject(&obj1);
- pdf_puts("\n");
- obj1 = contents.streamGetDict()->lookup("Filter");
- if (!obj1.isNull()) {
- pdf_puts("/Filter ");
- copyObject(&obj1);
- pdf_puts("\n");
- obj1 = contents.streamGetDict()->lookup("DecodeParms");
- if (!obj1.isNull()) {
- pdf_puts("/DecodeParms ");
- copyObject(&obj1);
- pdf_puts("\n");
- }
- }
- pdf_puts(">>\nstream\n");
- copyStream(contents.getStream()->getUndecodedStream());
- pdfendstream();
- } else if (contents.isArray()) {
- pdfbeginstream();
- for (i = 0, l = contents.arrayGetLength(); i < l; ++i) {
- Object contentsobj = contents.arrayGet(i);
- copyStream(contentsobj.getStream());
- if (i < l - 1)
- pdf_newline(); // add a newline after each stream except the last
- }
- pdfendstream();
- } else { // the contents are optional, but we need to include an empty stream
- pdfbeginstream();
- pdfendstream();
- }
-
- // write out all indirect objects
- writeRefs();
-
- // write out all used encodings (and delete list)
- writeEncodings();
-
- // write the Group dict if needed
- if (writeSepGroup) {
- pdfbeginobj(pdfpagegroupval, 2);
- copyObject(&groupDict);
- pdf_puts("\n");
- pdfendobj();
- pdfpagegroupval = 0; // only the 1st included pdf on a page gets its
- // Group included in the Page dict
- }
-
- // save object list, xref
- pdf_doc->inObjList = inObjList;
- pdf_doc->xref = xref;
-}
-
-// Called when an image has been written and it's resources in image_tab are
-// freed and it's not referenced anymore.
-
-void epdf_delete()
-{
- PdfDocument *pdf_doc = (PdfDocument *) epdf_doc;
- xref = pdf_doc->xref;
- if (pdf_doc->occurences < 0) {
- delete_document(pdf_doc);
- }
-}
-
-// Called when PDF embedding system is finalized.
-// Now deallocate all remaining PdfDocuments.
-
-void epdf_check_mem()
-{
- if (isInit) {
- PdfDocument *p, *n;
- for (p = pdfDocuments; p; p = n) {
- n = p->next;
- delete_document(p);
- }
- // see above for globalParams
- delete globalParams;
- }
-}