Exemplo n.º 1
0
  static FT_Error
  get_sfnt_glyph_name( TT_Face     face,
                       FT_UInt     glyph_index,
                       FT_Pointer  buffer,
                       FT_UInt     buffer_max )
  {
    FT_String*  gname;
    FT_Error    error;


    error = TT_Get_PS_Name( face, glyph_index, &gname );
    if ( !error && buffer_max > 0 )
    {
      FT_UInt  len = (FT_UInt)( ft_strlen( gname ) );


      if ( len >= buffer_max )
        len = buffer_max - 1;

      FT_MEM_COPY( buffer, gname, len );
      ((FT_Byte*)buffer)[len] = 0;
    }

    return error;
  }
Exemplo n.º 2
0
size_t
i_tt_glyph_name(TT_Fonthandle *handle, unsigned long ch, char *name_buf, 
                 size_t name_buf_size) {
#ifdef FTXPOST
  TT_Error rc;
  TT_String *psname;
  TT_UShort index;

  i_clear_error();

  if (!handle->loaded_names) {
    TT_Post post;
    mm_log((1, "Loading PS Names"));
    handle->load_cond = TT_Load_PS_Names(handle->face, &post);
    ++handle->loaded_names;
  }

  if (handle->load_cond) {
    i_push_errorf(handle->load_cond, "error loading names (%#x)",
		  (unsigned)handle->load_cond);
    return 0;
  }
  
  index = TT_Char_Index(handle->char_map, ch);
  if (!index) {
    i_push_error(0, "no such character");
    return 0;
  }

  rc = TT_Get_PS_Name(handle->face, index, &psname);

  if (rc) {
    i_push_error(rc, "error getting name");
    return 0;
  }

  strncpy(name_buf, psname, name_buf_size);
  name_buf[name_buf_size-1] = '\0';

  return strlen(psname) + 1;
#else
  mm_log((1, "FTXPOST extension not enabled\n"));
  i_clear_error();
  i_push_error(0, "Use of FTXPOST extension disabled");

  return 0;
#endif
}
Exemplo n.º 3
0
long
TTFsearch_PS_name(char *name)
{
  unsigned int i;
  char *n;


  for (i = 0; i < properties.num_Glyphs; i++)
  {
    TT_Get_PS_Name(face, i, &n);
    if (strcmp(name, n) == 0)
      break;
  }

  if (i == properties.num_Glyphs)
    return -1L;
  else
    return (long)i;
}
Exemplo n.º 4
0
encoding *
TTFget_first_glyphs(Font *fnt, long *array)
{
  unsigned int i, j, Num;
  unsigned int index_array[257];     /* we ignore glyph index 0 */
  char *n;
  encoding *e = (encoding *)mymalloc(sizeof (encoding));


  if (!array)
    oops("Invalid parameter in call to TTFget_first_glyphs()");

  for (i = 0; i < 257; i++)
    index_array[i] = 0;

  j = 0;
  if (fnt->PSnames != Only)
  {
    for (i = 0; i <= 0x16FFFF; i++)
    {
      Num = TT_Char_Index(char_map, i);
      if (Num < 0)
        oops("cmap mapping failure.");
      if (Num == 0)
        continue;
      if (Num <= 256)
        index_array[Num] = 1;

      if (fnt->PSnames)
        (void)TT_Get_PS_Name(face, Num, &n);
      else
        n = code_to_adobename(i);
      if (strcmp(n, ".notdef") == 0)
        continue;
      if (strcmp(n, ".null") == 0)
        continue;
      if (strcmp(n, "nonmarkingreturn") == 0)
        continue;

      if (j < 256)
      {
        array[j] = i;
        e->vec[j] = n;
      }
      else
        return e;
      j++;
    }

    if (!fnt->PSnames)
    {
      for (i = 1; i < properties.num_Glyphs; i++)
      {
        if (index_array[i] == 0)
        {
          if (j < 256)
          {
            array[j] = i | 0x1000000;
            e->vec[j] = code_to_adobename(i | 0x1000000);
          }
          else
            return e;
          j++;
        }
      }
    }
  }
  else
  {
    for (i = 0; i < properties.num_Glyphs; i++)
    {
      char *n;


      (void)TT_Get_PS_Name(face, i, &n);

      if (strcmp(n, ".notdef") == 0)
        continue;
      if (strcmp(n, ".null") == 0)
        continue;
      if (strcmp(n, "nonmarkingreturn") == 0)
        continue;

      if (j < 256)
      {
        array[j] = i | 0x1000000;
        e->vec[j] = n;
      }
      else
        return e;
      j++;
    }
  }

  return NULL;              /* never reached */
}
Exemplo n.º 5
0
void
readttf(Font *fnt, Boolean quiet, Boolean only_range)
{
  TT_Error error;
  ttfinfo *ti, *Ti;
  long Num, index;
  unsigned int i, j;
  long k, max_k;
  unsigned short num_cmap;
  unsigned short cmap_plat, cmap_enc;
  int index_array[257];

  static Boolean initialized = False;

  TT_UShort in_string[2];
  TTO_GSUB_String in, out;

  TT_UShort script_index, language_index, feature_index;
  TT_UShort req_feature_index = 0xFFFF;


  /*
   *   We allocate a placeholder boundary and the `.notdef' character.
   */

  if (!only_range)
  {
    ti = newchar(fnt);
    ti->charcode = -1;
    ti->adobename = ".notdef";

    ti = newchar(fnt);
    ti->charcode = -1;
    ti->adobename = "||"; /* boundary character name */
  }

  /*
   *   Initialize FreeType engine.
   */

  if (!initialized)
  {
    if ((error = TT_Init_FreeType(&engine)))
      oops("Cannot initialize engine (error code = 0x%x).", error);

    if ((error = TT_Init_Kerning_Extension(engine)))
      oops("Cannot initialize kerning (error code = 0x%x).", error);

    if (fnt->PSnames)
      if ((error = TT_Init_Post_Extension(engine)))
        oops("Cannot initialize PS name support (error code = 0x%x).", error);

    if (fnt->rotate)
      if ((error = TT_Init_GSUB_Extension(engine)))
        oops("Cannot initialize GSUB support (error code = 0x%x).", error);

    /*
     *   Load face.
     */

    real_ttfname = TeX_search_ttf_file(&(fnt->ttfname));
    if (!real_ttfname)
      oops("Cannot find `%s'.", fnt->ttfname);

    if ((error = TT_Open_Face(engine, real_ttfname, &face)))
      oops("Cannot open `%s'.", real_ttfname);

    /*
     *   Get face properties and allocate preload arrays.
     */

    TT_Get_Face_Properties(face, &properties);

    /*
     *   Now we try to open the proper font in a collection.
     */

    if (fnt->fontindex != 0)
    {
      if (properties.num_Faces == 1)
      {
        warning("This isn't a TrueType collection.\n"
                "Parameter `-f' is ignored.");
        fnt->fontindex = 0;
        fnt->fontindexparam = NULL;
      }
      else
      {
        TT_Close_Face(face);
        if ((error = TT_Open_Collection(engine, real_ttfname,
                                        fnt->fontindex, &face)))
          oops("Cannot open font %lu in TrueType Collection `%s'.",
               fnt->fontindex, real_ttfname);
      }
    }

    /*
     *   Create instance.
     */

    if ((error = TT_New_Instance(face, &instance)))
      oops("Cannot create instance for `%s' (error code = 0x%x).",
           real_ttfname, error);

    /*
     *   We use a dummy glyph size of 10pt.
     */

    if ((error = TT_Set_Instance_CharSize(instance, 10 * 64)))
      oops("Cannot set character size (error code = 0x%x).", error);

    matrix1.xx = (TT_Fixed)(floor(fnt->efactor * 1024) * (1L<<16)/1024);
    matrix1.xy = (TT_Fixed)(floor(fnt->slant * 1024) * (1L<<16)/1024);
    matrix1.yx = (TT_Fixed)0;
    matrix1.yy = (TT_Fixed)(1L<<16);

    if (fnt->rotate)
    {
      matrix2.xx = 0;
      matrix2.yx = 1L << 16;
      matrix2.xy = -matrix2.yx;
      matrix2.yy = matrix2.xx;
    }

    if ((error = TT_Set_Instance_Transform_Flags(
                   instance,
                   fnt->rotate ? 1 : 0,
                   fnt->efactor != 1.0 ? 1 : 0)))
      oops("Cannot set transform flags (error code = 0x%x).", error);

    /*
     *   Create glyph container.
     */

    if ((error = TT_New_Glyph(face, &glyph)))
      oops("Cannot create glyph container (error code = 0x%x).", error);

    fnt->units_per_em = properties.header->Units_Per_EM;
    fnt->fixedpitch = properties.postscript->isFixedPitch;
    fnt->italicangle = properties.postscript->italicAngle / 65536.0;

    if (fnt->PSnames != Only)
    {
      num_cmap = properties.num_CharMaps;
      for (i = 0; i < num_cmap; i++)
      {
        if ((error = TT_Get_CharMap_ID(face, i, &cmap_plat, &cmap_enc)))
          oops("Cannot query cmap (error code = 0x%x).", error);
        if (cmap_plat == fnt->pid && cmap_enc == fnt->eid)
          break;
      }
      if (i == num_cmap)
      {
        fprintf(stderr, "%s: ERROR: Invalid platform and/or encoding ID.\n",
                progname);
        if (num_cmap == 1)
          fprintf(stderr, "  The only valid PID/EID pair is");
        else
          fprintf(stderr, "  Valid PID/EID pairs are:\n");
        for (i = 0; i < num_cmap; i++)
        {
          TT_Get_CharMap_ID(face, i, &cmap_plat, &cmap_enc);
          fprintf(stderr, "    (%i,%i)\n", cmap_plat, cmap_enc);
        }
        fprintf(stderr, "\n");
        exit(1);
      }

      if ((error = TT_Get_CharMap(face, i, &char_map)))
        oops("Cannot load cmap (error code = 0x%x).", error);
    }

    if (fnt->PSnames)
    {
      if ((error = TT_Load_PS_Names(face, &post)))
        oops("Cannot load TrueType PS names (error code = 0x%x).", error);
    }
    else if (cmap_plat == Microsoft_platform &&
             cmap_enc == Microsoft_Unicode_encoding)
      set_encoding_scheme(encUnicode, fnt);
    else if (cmap_plat == Macintosh_platform &&
             cmap_enc == Macintosh_encoding)
      set_encoding_scheme(encMac, fnt);
    else
      set_encoding_scheme(encFontSpecific, fnt);

    if (fnt->rotate)
    {
      gsub = &gsub_;

      error = TT_Load_GSUB_Table(face, gsub, NULL);
      if (!error)
        has_gsub = True;
      else if (error != TT_Err_Table_Missing)
        warning("Cannot load GSUB table (error code = 0x%x).", error);
      else
        warning("No GSUB data available "
                "for vertical glyph presentation forms.");

      /* we check for the `vert' feature in Chinese, Japanese, and Korean */

      error = TT_GSUB_Select_Script(gsub,
                                    SCRIPT_kana,
                                    &script_index);
      if (error)
        goto check_hani;
      error = TT_GSUB_Select_Feature(gsub,
                                     FEATURE_vert,
                                     script_index,
                                     0xFFFF,
                                     &feature_index);
      if (error)
      {
        error = TT_GSUB_Select_Language(gsub,
                                        LANGUAGE_JAN,
                                        script_index,
                                        &language_index,
                                        &req_feature_index);
        if (error)
          goto check_hani;
        error = TT_GSUB_Select_Feature(gsub,
                                       FEATURE_vert,
                                       script_index,
                                       language_index,
                                       &feature_index);
        if (error)
          goto check_hani;
        else
          goto Done;
      }
      else
        goto Done;

    check_hani:
      error = TT_GSUB_Select_Script(gsub,
                                    SCRIPT_hani,
                                    &script_index);
      if (error)
        goto check_hang;
      error = TT_GSUB_Select_Feature(gsub,
                                     FEATURE_vert,
                                     script_index,
                                     0xFFFF,
                                     &feature_index);
      if (error)
      {
        error = TT_GSUB_Select_Language(gsub,
                                        LANGUAGE_CHN,
                                        script_index,
                                        &language_index,
                                        &req_feature_index);
        if (error)
          goto check_hang;
        error = TT_GSUB_Select_Feature(gsub,
                                       FEATURE_vert,
                                       script_index,
                                       language_index,
                                       &feature_index);
        if (error)
          goto check_hang;
        else
          goto Done;
      }
      else
        goto Done;

    check_hang:
      error = TT_GSUB_Select_Script(gsub,
                                    SCRIPT_hang,
                                    &script_index);
      if (error)
        goto Done;
      error = TT_GSUB_Select_Feature(gsub,
                                     FEATURE_vert,
                                     script_index,
                                     0xFFFF,
                                     &feature_index);
      if (error)
      {
        error = TT_GSUB_Select_Language(gsub,
                                        LANGUAGE_KOR,
                                        script_index,
                                        &language_index,
                                        &req_feature_index);
        if (error)
          goto Done;
        error = TT_GSUB_Select_Feature(gsub,
                                       FEATURE_vert,
                                       script_index,
                                       language_index,
                                       &feature_index);
      }

    Done:
      if (error)
      {
        warning("There is no data for vertical typesetting in GSUB table.");
        has_gsub = False;
      }

      if (req_feature_index != 0xFFFF)
        TT_GSUB_Add_Feature(gsub, req_feature_index, ALL_GLYPHS);
      TT_GSUB_Add_Feature(gsub, feature_index, ALL_GLYPHS);

      in.length = 1;
      in.pos = 0;
      in.string = in_string;
      in.properties = NULL;

      out.pos = 0;
      out.allocated = 0;
      out.string = NULL;
      out.properties = NULL;
    }

    initialized = True;
  }

  if (!quiet)
  {
    if (only_range)
      printf("\n\n%s:\n", fnt->fullname);
    printf("\n");
    printf("Glyph  Code   Glyph Name                ");
    printf("Width  llx    lly      urx    ury\n");
    printf("---------------------------------------");
    printf("---------------------------------\n");
  }

  /*
   *   We load only glyphs with a valid cmap entry.  Nevertheless, for
   *   the default mapping, we use the first 256 glyphs addressed by
   *   ascending code points, followed by glyphs not in the cmap.
   *
   *   If we compute a range, we take the character codes given in
   *   the fnt->sf_code array.
   *
   *   If the -N flag is set, no cmap is used at all.  Instead, the
   *   first 256 glyphs (with a valid PS name) are used for the default
   *   mapping.
   */

  if (!only_range)
    for (i = 0; i < 257; i++)
      index_array[i] = 0;
  else
    for (i = 0; i < 256; i++)
      fnt->inencptrs[i] = 0;

  j = 0;
  if (fnt->PSnames == Only)
    max_k = properties.num_Glyphs - 1;
  else
    max_k = only_range ? 0xFF : 0x16FFFF;

  for (k = 0; k <= max_k; k++)
  {
    char *an;


    if (fnt->PSnames != Only)
    {
      if (only_range)
      {
        index = fnt->sf_code[k];
        if (index < 0)
          continue;
        j = k;
      }
      else
        index = k;

      Num = TT_Char_Index(char_map, index);

      /* now we try to get a vertical glyph form */

      if (has_gsub)
      {
        in_string[0] = Num;
        error = TT_GSUB_Apply_String(gsub, &in, &out);
        if (error && error != TTO_Err_Not_Covered)
          warning("Cannot get the vertical glyph form for glyph index %d.",
                  Num);
        else
          Num = out.string[0];
      }

      if (Num < 0)
        oops("Failure on cmap mapping from %s.", fnt->ttfname);
      if (Num == 0)
        continue;
      if (!only_range)
        if (Num <= 256)
          index_array[Num] = 1;
    }
    else
    {
      Num = k;
      index = 0;
    }

    error = TT_Load_Glyph(instance, glyph, Num, 0);
    if (!error)
      error = TT_Get_Glyph_Big_Metrics(glyph, &metrics);
    if (!error)
      error = TT_Get_Glyph_Outline(glyph, &outline);
    if (!error)
    {
      if (fnt->efactor != 1.0 || fnt->slant != 0.0 )
        TT_Transform_Outline(&outline, &matrix1);
      if (fnt->rotate)
        TT_Transform_Outline(&outline, &matrix2);
    }
    if (!error)
      error = TT_Get_Outline_BBox(&outline, &bbox); /* we need the non-
                                                       grid-fitted bbox */
    if (!error)
    {
      if (fnt->PSnames)
        (void)TT_Get_PS_Name(face, Num, &an);
      else
        an = code_to_adobename(index);

      /* ignore characters not usable for typesetting with TeX */

      if (strcmp(an, ".notdef") == 0)
        continue;
      if (strcmp(an, ".null") == 0)
        continue;
      if (strcmp(an, "nonmarkingreturn") == 0)
        continue;

      ti = newchar(fnt);
      ti->charcode = index;
      ti->glyphindex = Num;
      ti->adobename = an;
      ti->llx = bbox.xMin * 1000 / fnt->units_per_em;
      ti->lly = bbox.yMin * 1000 / fnt->units_per_em;
      ti->urx = bbox.xMax * 1000 / fnt->units_per_em;
      ti->ury = bbox.yMax * 1000 / fnt->units_per_em;

      /*
       *   We must now shift the rotated character both horizontally
       *   and vertically.  The vertical amount is 25% by default.
       */

      if (fnt->rotate)
      {
        ti->llx += (metrics.vertBearingY - bbox.xMin) *
                     1000 / fnt->units_per_em;
        ti->lly -= 1000 * fnt->y_offset;
        ti->urx += (metrics.vertBearingY - bbox.xMin) *
                     1000 / fnt->units_per_em;
        ti->ury -= 1000 * fnt->y_offset;
      }

      /*
       *   We need to avoid negative heights or depths.  They break accents
       *   in math mode, among other things.
       */

      if (ti->lly > 0)
        ti->lly = 0;
      if (ti->ury < 0)
        ti->ury = 0;
      if (fnt->rotate)
        ti->width = metrics.vertAdvance * 1000 / fnt->units_per_em;
      else
        ti->width = transform(metrics.horiAdvance * 1000 / fnt->units_per_em,
                              0, fnt->efactor, fnt->slant);

      if (!quiet)
        printf("%5ld  %05lx  %-25s %5d  % 5d,% 5d -- % 5d,% 5d\n",
               Num, index, ti->adobename,
               ti->width,
               ti->llx, ti->lly, ti->urx, ti->ury);

      if (j < 256)
      {
        fnt->inencptrs[j] = ti;
        ti->incode = j;
      }
      j++;
    }
  }

  /*
   *   Now we load glyphs without a cmap entry, provided some slots are
   *   still free -- we skip this if we have to compute a range or use
   *   PS names.
   */

  if (!only_range && !fnt->PSnames)
  {
    for (i = 1; i <= properties.num_Glyphs; i++)
    {
      char *an;


      if (index_array[i] == 0)
      {
        error = TT_Load_Glyph(instance, glyph, i, 0);
        if (!error)
          error = TT_Get_Glyph_Big_Metrics(glyph, &metrics);
        if (!error)
          error = TT_Get_Glyph_Outline(glyph, &outline);
        if (!error)
          error = TT_Get_Outline_BBox(&outline, &bbox);
        if (!error)
        {
          an = code_to_adobename(i | 0x1000000);

          ti = newchar(fnt);
          ti->charcode = i | 0x1000000;
          ti->glyphindex = i;
          ti->adobename = an;
          ti->llx = bbox.xMin * 1000 / fnt->units_per_em;
          ti->lly = bbox.yMin * 1000 / fnt->units_per_em;
          ti->urx = bbox.xMax * 1000 / fnt->units_per_em;
          ti->ury = bbox.yMax * 1000 / fnt->units_per_em;

          if (ti->lly > 0)
            ti->lly = 0;
          if (ti->ury < 0)
            ti->ury = 0;
          ti->width = transform(metrics.horiAdvance*1000 / fnt->units_per_em,
                                0, fnt->efactor, fnt->slant);

          if (!quiet)
            printf("%5d         %-25s %5d  % 5d,% 5d -- % 5d,% 5d\n",
                   i, ti->adobename,
                   ti->width,
                   ti->llx, ti->lly, ti->urx, ti->ury);

          if (j < 256)
          {
            fnt->inencptrs[j] = ti;
            ti->incode = j;
          }
          else
            break;
          j++;
        }
      }
    }
  }

  /* Finally, we construct a `Germandbls' glyph if necessary */

  if (!only_range)
  {
    if (NULL == findadobe("Germandbls", fnt->charlist) &&
        NULL != (Ti = findadobe("S", fnt->charlist)))
    {
      pcc *np, *nq;


      ti = newchar(fnt);
      ti->charcode = properties.num_Glyphs | 0x1000000;
      ti->glyphindex = properties.num_Glyphs;
      ti->adobename = "Germandbls";
      ti->width = Ti->width << 1;
      ti->llx = Ti->llx;
      ti->lly = Ti->lly;
      ti->urx = Ti->width + Ti->urx;
      ti->ury = Ti->ury;
      ti->kerns = Ti->kerns;

      np = newpcc();
      np->partname = "S";
      nq = newpcc();
      nq->partname = "S";
      nq->xoffset = Ti->width;
      np->next = nq;
      ti->pccs = np;
      ti->constructed = True;

      if (!quiet)
        printf("*            %-25s %5d  % 5d,% 5d -- % 5d,% 5d\n",
               ti->adobename,
               ti->width,
               ti->llx, ti->lly, ti->urx, ti->ury);
    }
  }

  /* kerning between subfonts isn't available */
  if (!only_range)
    readttf_kern(fnt);
}