splash/SplashFTFontFile.cc

//========================================================================
//
// SplashFTFontFile.cc
//
//========================================================================

//========================================================================
//
// 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) 2006 Takashi Iwai <tiwai@suse.de>
// Copyright (C) 2014, 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2017 Oliver Sander <oliver.sander@tu-dresden.de>
// 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
//
//========================================================================

#include <config.h>

#ifdef USE_GCC_PRAGMAS
#pragma implementation
#endif

#include "goo/gmem.h"
#include "goo/GooString.h"
#include "poppler/GfxFont.h"
#include "SplashFTFontEngine.h"
#include "SplashFTFont.h"
#include "SplashFTFontFile.h"

//------------------------------------------------------------------------
// SplashFTFontFile
//------------------------------------------------------------------------

SplashFontFile *SplashFTFontFile::loadType1Font(SplashFTFontEngine *engineA,
						SplashFontFileID *idA,
						SplashFontSrc *src,
						const char **encA) {
  FT_Face faceA;
  int *codeToGIDA;
  const char *name;
  int i;

  if (src->isFile) {
    if (FT_New_Face(engineA->lib, src->fileName->getCString(), 0, &faceA))
      return nullptr;
  } else {
    if (FT_New_Memory_Face(engineA->lib, (const FT_Byte *)src->buf, src->bufLen, 0, &faceA))
      return nullptr;
  }
  codeToGIDA = (int *)gmallocn(256, sizeof(int));
  for (i = 0; i < 256; ++i) {
    codeToGIDA[i] = 0;
    if ((name = encA[i])) {
      codeToGIDA[i] = (int)FT_Get_Name_Index(faceA, (char *)name);
      if (codeToGIDA[i] == 0) {
	name = GfxFont::getAlternateName(name);
	if (name) {
	  codeToGIDA[i] = FT_Get_Name_Index(faceA, (char *)name);
	}
      }
    }
  }

  return new SplashFTFontFile(engineA, idA, src,
			      faceA, codeToGIDA, 256, gFalse, gTrue);
}

SplashFontFile *SplashFTFontFile::loadCIDFont(SplashFTFontEngine *engineA,
					      SplashFontFileID *idA,
					      SplashFontSrc *src,
					      int *codeToGIDA,
					      int codeToGIDLenA) {
  FT_Face faceA;

  if (src->isFile) {
    if (FT_New_Face(engineA->lib, src->fileName->getCString(), 0, &faceA))
      return nullptr;
  } else {
    if (FT_New_Memory_Face(engineA->lib, (const FT_Byte *)src->buf, src->bufLen, 0, &faceA))
      return nullptr;
  }

  return new SplashFTFontFile(engineA, idA, src,
			      faceA, codeToGIDA, codeToGIDLenA, gFalse, gFalse);
}

SplashFontFile *SplashFTFontFile::loadTrueTypeFont(SplashFTFontEngine *engineA,
						   SplashFontFileID *idA,
						   SplashFontSrc *src,
						   int *codeToGIDA,
						   int codeToGIDLenA,
						   int faceIndexA) {
  FT_Face faceA;

  if (src->isFile) {
    if (FT_New_Face(engineA->lib, src->fileName->getCString(), faceIndexA, &faceA))
      return nullptr;
  } else {
    if (FT_New_Memory_Face(engineA->lib, (const FT_Byte *)src->buf, src->bufLen, faceIndexA, &faceA))
      return nullptr;
  }

  return new SplashFTFontFile(engineA, idA, src,
			      faceA, codeToGIDA, codeToGIDLenA, gTrue, gFalse);
}

SplashFTFontFile::SplashFTFontFile(SplashFTFontEngine *engineA,
				   SplashFontFileID *idA,
				   SplashFontSrc *srcA,
				   FT_Face faceA,
				   int *codeToGIDA, int codeToGIDLenA,
				   GBool trueTypeA, GBool type1A):
  SplashFontFile(idA, srcA)
{
  engine = engineA;
  face = faceA;
  codeToGID = codeToGIDA;
  codeToGIDLen = codeToGIDLenA;
  trueType = trueTypeA;
  type1 = type1A;
}

SplashFTFontFile::~SplashFTFontFile() {
  if (face) {
    FT_Done_Face(face);
  }
  if (codeToGID) {
    gfree(codeToGID);
  }
}

SplashFont *SplashFTFontFile::makeFont(SplashCoord *mat,
				       SplashCoord *textMat) {
  SplashFont *font;

  font = new SplashFTFont(this, mat, textMat);
  font->initCache();
  return font;
}

int *SplashFTFontFile::getCodeToGID() {
  return codeToGID;
}