source/libs/poppler/poppler-src/splash/SplashT1FontEngine.cc

   1 //========================================================================
   2 //
   3 // SplashT1FontEngine.cc
   4 //
   5 //========================================================================
   6
   7 //========================================================================
   8 //
   9 // Modified under the Poppler project - http://poppler.freedesktop.org
  10 //
  11 // All changes made under the Poppler project to this file are licensed
  12 // under GPL version 2 or later
  13 //
  14 // Copyright (C) 2006 Takashi Iwai <tiwai@suse.de>
  15 // Copyright (C) 2009 Albert Astals Cid <aacid@kde.org>
  16 //
  17 // To see a description of the changes please see the Changelog file that
  18 // came with your tarball or type make ChangeLog if you are building from git
  19 //
  20 //========================================================================
  21
  22 #include <config.h>
  23
  24 #if HAVE_T1LIB_H
  25
  26 #ifdef USE_GCC_PRAGMAS
  27 #pragma implementation
  28 #endif
  29
  30 #include <stdlib.h>
  31 #include <stdio.h>
  32 #ifdef HAVE_UNISTD_H
  33 #  include <unistd.h>
  34 #endif
  35 #include <t1lib.h>
  36 #include "goo/GooString.h"
  37 #include "goo/gfile.h"
  38 #include "fofi/FoFiType1C.h"
  39 #include "SplashT1FontFile.h"
  40 #include "SplashT1FontEngine.h"
  41
  42 #ifdef VMS
  43 #if (__VMS_VER < 70000000)
  44 extern "C" int unlink(char *filename);
  45 #endif
  46 #endif
  47
  48 //------------------------------------------------------------------------
  49
  50 int SplashT1FontEngine::t1libInitCount = 0;
  51
  52 //------------------------------------------------------------------------
  53
  54 static void fileWrite(void *stream, const char *data, int len) {
  55   fwrite(data, 1, len, (FILE *)stream);
  56 }
  57
  58 //------------------------------------------------------------------------
  59 // SplashT1FontEngine
  60 //------------------------------------------------------------------------
  61
  62 SplashT1FontEngine::SplashT1FontEngine(GBool aaA) {
  63   aa = aaA;
  64 }
  65
  66 SplashT1FontEngine *SplashT1FontEngine::init(GBool aaA) {
  67   // grayVals[i] = round(i * 255 / 16)
  68   static unsigned long grayVals[17] = {
  69     0, 16, 32, 48, 64, 80, 96, 112, 128, 143, 159, 175, 191, 207, 223, 239, 255
  70   };
  71
  72   //~ for multithreading: need a mutex here
  73   if (t1libInitCount == 0) {
  74     T1_SetBitmapPad(8);
  75     if (!T1_InitLib(NO_LOGFILE | IGNORE_CONFIGFILE | IGNORE_FONTDATABASE |
  76                     T1_NO_AFM)) {
  77       return NULL;
  78     }
  79     if (aaA) {
  80       T1_AASetBitsPerPixel(8);
  81       T1_AASetLevel(T1_AA_HIGH);
  82       T1_AAHSetGrayValues(grayVals);
  83     } else {
  84       T1_AANSetGrayValues(0, 1);
  85     }
  86   }
  87   ++t1libInitCount;
  88
  89   return new SplashT1FontEngine(aaA);
  90 }
  91
  92 SplashT1FontEngine::~SplashT1FontEngine() {
  93   //~ for multithreading: need a mutex here
  94   if (--t1libInitCount == 0) {
  95     T1_CloseLib();
  96   }
  97 }
  98
  99 SplashFontFile *SplashT1FontEngine::loadType1Font(SplashFontFileID *idA,
 100                                                   SplashFontSrc *src,
 101                                                   const char **enc) {
 102   return SplashT1FontFile::loadType1Font(this, idA, src, enc);
 103 }
 104
 105 SplashFontFile *SplashT1FontEngine::loadType1CFont(SplashFontFileID *idA,
 106                                                    SplashFontSrc *src,
 107                                                    const char **enc) {
 108   FoFiType1C *ff;
 109   GooString *tmpFileName;
 110   FILE *tmpFile;
 111   SplashFontFile *ret;
 112
 113   SplashFontSrc *newsrc;
 114
 115   if (src->isFile)
 116     ff = FoFiType1C::load(src->fileName->getCString());
 117   else
 118     ff = FoFiType1C::make(src->buf, src->bufLen);
 119   if (! ff)
 120     return NULL;
 121
 122   tmpFileName = NULL;
 123   if (!openTempFile(&tmpFileName, &tmpFile, "wb")) {
 124     delete ff;
 125     return NULL;
 126   }
 127   ff->convertToType1(NULL, NULL, gTrue, &fileWrite, tmpFile);
 128   delete ff;
 129   fclose(tmpFile);
 130   newsrc = new SplashFontSrc;
 131   newsrc->setFile(tmpFileName, gTrue);
 132   delete tmpFileName;
 133   ret = SplashT1FontFile::loadType1Font(this, idA, newsrc, enc);
 134   newsrc->unref();
 135   return ret;
 136 }
 137
 138 #endif // HAVE_T1LIB_H