Coverage Report

Created: 2025-07-11 07:47

/src/xpdf-4.05/splash/SplashFTFontEngine.cc
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Source (jump to first uncovered line)
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//========================================================================
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//
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// SplashFTFontEngine.cc
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//
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// Copyright 2003-2013 Glyph & Cog, LLC
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//
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//========================================================================
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#include <aconf.h>
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#if HAVE_FREETYPE_H
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#include <stdio.h>
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#ifndef _WIN32
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#  include <unistd.h>
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#endif
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#include "gmem.h"
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#include "gmempp.h"
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#include "GString.h"
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#include "gfile.h"
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#include "FoFiTrueType.h"
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#include "FoFiType1C.h"
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#include "SplashFTFontFile.h"
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#include "SplashFTFontEngine.h"
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#include FT_MODULE_H
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#ifdef FT_CFF_DRIVER_H
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#  include FT_CFF_DRIVER_H
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#endif
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#ifdef VMS
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#if (__VMS_VER < 70000000)
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extern "C" int unlink(char *filename);
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#endif
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#endif
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//------------------------------------------------------------------------
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0
static void fileWrite(void *stream, const char *data, int len) {
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0
  fwrite(data, 1, len, (FILE *)stream);
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0
}
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#if LOAD_FONTS_FROM_MEM
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static void gstringWrite(void *stream, const char *data, int len) {
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  ((GString *)stream)->append(data, len);
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}
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#endif
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//------------------------------------------------------------------------
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// SplashFTFontEngine
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//------------------------------------------------------------------------
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SplashFTFontEngine::SplashFTFontEngine(GBool aaA, Guint flagsA,
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0
               FT_Library libA) {
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  FT_Int major, minor, patch;
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  aa = aaA;
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  flags = flagsA;
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  lib = libA;
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  // as of FT 2.1.8, CID fonts are indexed by CID instead of GID
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  FT_Library_Version(lib, &major, &minor, &patch);
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  useCIDs = major > 2 ||
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            (major == 2 && (minor > 1 || (minor == 1 && patch > 7)));
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}
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SplashFTFontEngine *SplashFTFontEngine::init(GBool aaA, Guint flagsA) {
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  FT_Library libA;
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  if (FT_Init_FreeType(&libA)) {
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    return NULL;
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  }
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  return new SplashFTFontEngine(aaA, flagsA, libA);
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}
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SplashFTFontEngine::~SplashFTFontEngine() {
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  FT_Done_FreeType(lib);
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}
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SplashFontFile *SplashFTFontEngine::loadType1Font(SplashFontFileID *idA,
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#if LOAD_FONTS_FROM_MEM
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              GString *fontBuf,
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#else
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              char *fileName,
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              GBool deleteFile,
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#endif
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0
              const char **enc) {
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  return SplashFTFontFile::loadType1Font(this, idA, splashFontType1,
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#if LOAD_FONTS_FROM_MEM
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           fontBuf,
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#else
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           fileName, deleteFile,
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#endif
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           enc);
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}
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SplashFontFile *SplashFTFontEngine::loadType1CFont(SplashFontFileID *idA,
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#if LOAD_FONTS_FROM_MEM
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               GString *fontBuf,
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#else
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               char *fileName,
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               GBool deleteFile,
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#endif
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0
               const char **enc) {
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  return SplashFTFontFile::loadType1Font(this, idA, splashFontType1C,
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#if LOAD_FONTS_FROM_MEM
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           fontBuf,
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#else
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           fileName, deleteFile,
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#endif
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           enc);
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}
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SplashFontFile *SplashFTFontEngine::loadOpenTypeT1CFont(SplashFontFileID *idA,
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#if LOAD_FONTS_FROM_MEM
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              GString *fontBuf,
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#else
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              char *fileName,
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              GBool deleteFile,
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#endif
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0
              const char **enc) {
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  FoFiTrueType *ff;
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#if LOAD_FONTS_FROM_MEM
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  GString *fontBuf2;
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#else
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  GString *tmpFileName;
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  FILE *tmpFile;
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#endif
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  SplashFontFile *ret;
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#if LOAD_FONTS_FROM_MEM
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  if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
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        0, gTrue))) {
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#else
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  if (!(ff = FoFiTrueType::load(fileName, 0, gTrue))) {
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#endif
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    return NULL;
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  }
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  if (ff->isHeadlessCFF()) {
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#if LOAD_FONTS_FROM_MEM
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    fontBuf2 = new GString();
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    ff->convertToType1(NULL, enc, gFalse, &gstringWrite, fontBuf2);
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    delete ff;
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    ret = SplashFTFontFile::loadType1Font(this, idA, splashFontType1,
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            fontBuf2, enc);
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    if (ret) {
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      delete fontBuf;
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    } else {
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      delete fontBuf2;
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    }
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#else
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    tmpFileName = NULL;
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    if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
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      delete ff;
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      return NULL;
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    }
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    ff->convertToType1(NULL, enc, gFalse, &fileWrite, tmpFile);
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    delete ff;
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    fclose(tmpFile);
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    ret = SplashFTFontFile::loadType1Font(this, idA, splashFontType1,
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            tmpFileName->getCString(),
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            gTrue, enc);
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    if (ret) {
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      if (deleteFile) {
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  unlink(fileName);
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      }
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    } else {
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      unlink(tmpFileName->getCString());
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    }
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    delete tmpFileName;
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#endif
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  } else {
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    delete ff;
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    ret = SplashFTFontFile::loadType1Font(this, idA, splashFontOpenTypeT1C,
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#if LOAD_FONTS_FROM_MEM
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            fontBuf,
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#else
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            fileName, deleteFile,
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#endif
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            enc);
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  }
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  return ret;
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}
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SplashFontFile *SplashFTFontEngine::loadCIDFont(SplashFontFileID *idA,
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#if LOAD_FONTS_FROM_MEM
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            GString *fontBuf,
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#else
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            char *fileName,
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            GBool deleteFile,
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#endif
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            int *codeToGID,
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            int codeToGIDLen) {
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  FoFiType1C *ff;
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  int *cidToGIDMap;
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  int nCIDs;
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  SplashFontFile *ret;
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  // check for a CFF font
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  if (codeToGID) {
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    cidToGIDMap = NULL;
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    nCIDs = 0;
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  } else if (useCIDs) {
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    cidToGIDMap = NULL;
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    nCIDs = 0;
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#if LOAD_FONTS_FROM_MEM
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  } else if ((ff = FoFiType1C::make(fontBuf->getCString(),
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            fontBuf->getLength()))) {
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#else
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  } else if ((ff = FoFiType1C::load(fileName))) {
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#endif
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    cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
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    delete ff;
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  } else {
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    cidToGIDMap = NULL;
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    nCIDs = 0;
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  }
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  ret = SplashFTFontFile::loadCIDFont(this, idA, splashFontCID,
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#if LOAD_FONTS_FROM_MEM
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              fontBuf,
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#else
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              fileName, deleteFile,
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#endif
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              codeToGID ? codeToGID : cidToGIDMap,
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              codeToGID ? codeToGIDLen : nCIDs);
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  if (!ret) {
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    gfree(cidToGIDMap);
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  }
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  return ret;
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0
}
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SplashFontFile *SplashFTFontEngine::loadOpenTypeCFFFont(SplashFontFileID *idA,
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#if LOAD_FONTS_FROM_MEM
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              GString *fontBuf,
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#else
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              char *fileName,
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              GBool deleteFile,
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#endif
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              int *codeToGID,
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0
              int codeToGIDLen) {
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  FoFiTrueType *ff;
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#if LOAD_FONTS_FROM_MEM
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  GString *fontBuf2;
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#else
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  GString *tmpFileName;
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  FILE *tmpFile;
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0
#endif
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  char *cffStart;
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0
  int cffLength;
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0
  int *cidToGIDMap;
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0
  int nCIDs;
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  SplashFontFile *ret;
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#if LOAD_FONTS_FROM_MEM
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  if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
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        0, gTrue))) {
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#else
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0
  if (!(ff = FoFiTrueType::load(fileName, 0, gTrue))) {
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#endif
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    return NULL;
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  }
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  cidToGIDMap = NULL;
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  nCIDs = 0;
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  if (ff->isHeadlessCFF()) {
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    if (!ff->getCFFBlock(&cffStart, &cffLength)) {
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      return NULL;
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    }
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#if LOAD_FONTS_FROM_MEM
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    fontBuf2 = new GString(cffStart, cffLength);
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    if (!useCIDs) {
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      cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
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    }
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    ret = SplashFTFontFile::loadCIDFont(this, idA, splashFontOpenTypeCFF,
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          fontBuf2, cidToGIDMap, nCIDs);
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    if (ret) {
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      delete fontBuf;
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    } else {
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      delete fontBuf2;
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    }
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#else
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0
    tmpFileName = NULL;
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    if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
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      delete ff;
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      return NULL;
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0
    }
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    fwrite(cffStart, 1, cffLength, tmpFile);
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    fclose(tmpFile);
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    if (!useCIDs) {
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      cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
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    }
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    ret = SplashFTFontFile::loadCIDFont(this, idA, splashFontOpenTypeCFF,
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          tmpFileName->getCString(), gTrue,
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          cidToGIDMap, nCIDs);
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    if (ret) {
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      if (deleteFile) {
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  unlink(fileName);
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      }
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    } else {
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      unlink(tmpFileName->getCString());
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    }
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    delete tmpFileName;
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0
#endif
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  } else {
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    if (!codeToGID && !useCIDs && ff->isOpenTypeCFF()) {
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      cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
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    }
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    ret = SplashFTFontFile::loadCIDFont(this, idA, splashFontOpenTypeCFF,
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#if LOAD_FONTS_FROM_MEM
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          fontBuf,
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#else
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          fileName, deleteFile,
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0
#endif
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          codeToGID ? codeToGID : cidToGIDMap,
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          codeToGID ? codeToGIDLen : nCIDs);
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0
  }
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  delete ff;
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0
  if (!ret) {
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    gfree(cidToGIDMap);
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  }
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0
  return ret;
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0
}
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SplashFontFile *SplashFTFontEngine::loadTrueTypeFont(SplashFontFileID *idA,
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#if LOAD_FONTS_FROM_MEM
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                 GString *fontBuf,
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#else
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                 char *fileName,
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                 GBool deleteFile,
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#endif
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                 int fontNum,
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                 int *codeToGID,
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0
                 int codeToGIDLen) {
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0
  FoFiTrueType *ff;
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#if LOAD_FONTS_FROM_MEM
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  GString *fontBuf2;
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#else
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0
  GString *tmpFileName;
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0
  FILE *tmpFile;
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0
#endif
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0
  SplashFontFile *ret;
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#if LOAD_FONTS_FROM_MEM
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  if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
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        fontNum))) {
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#else
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0
  if (!(ff = FoFiTrueType::load(fileName, fontNum))) {
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0
#endif
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0
    return NULL;
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0
  }
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#if LOAD_FONTS_FROM_MEM
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  fontBuf2 = new GString;
351
  ff->writeTTF(&gstringWrite, fontBuf2);
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#else
353
0
  tmpFileName = NULL;
354
0
  if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
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0
    delete ff;
356
0
    return NULL;
357
0
  }
358
0
  ff->writeTTF(&fileWrite, tmpFile);
359
0
  fclose(tmpFile);
360
0
#endif
361
0
  delete ff;
362
0
  ret = SplashFTFontFile::loadTrueTypeFont(this, idA, splashFontTrueType,
363
#if LOAD_FONTS_FROM_MEM
364
             fontBuf2,
365
#else
366
0
             tmpFileName->getCString(), gTrue,
367
0
#endif
368
0
             0, codeToGID, codeToGIDLen);
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#if LOAD_FONTS_FROM_MEM
370
  if (ret) {
371
    delete fontBuf;
372
  } else {
373
    delete fontBuf2;
374
  }
375
#else
376
0
  if (ret) {
377
0
    if (deleteFile) {
378
0
      unlink(fileName);
379
0
    }
380
0
  } else {
381
0
    unlink(tmpFileName->getCString());
382
0
  }
383
0
  delete tmpFileName;
384
0
#endif
385
0
  return ret;
386
0
}
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#endif // HAVE_FREETYPE_H