text: /***************************************************************************/
  /*                                                                         */
  /*  cffobjs.c                                                              */
  /*                                                                         */
  /*    OpenType objects manager (body).                                     */
  /*                                                                         */
  /*  Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by       */
  /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  /*                                                                         */
  /*  This file is part of the FreeType project, and may only be used,       */
  /*  modified, and distributed under the terms of the FreeType project      */
  /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
  /*  this file you indicate that you have read the license and              */
  /*  understand and accept it fully.                                        */
  /*                                                                         */
  /***************************************************************************/
  
  
  #include <ft2build.h>
  #include FT_INTERNAL_DEBUG_H
  #include FT_INTERNAL_CALC_H
  #include FT_INTERNAL_STREAM_H
  #include FT_ERRORS_H
  #include FT_TRUETYPE_IDS_H
  #include FT_TRUETYPE_TAGS_H
  #include FT_INTERNAL_SFNT_H
  #include FT_SERVICE_POSTSCRIPT_CMAPS_H
  #include FT_INTERNAL_POSTSCRIPT_HINTS_H
  #include "cffobjs.h"
  #include "cffload.h"
  #include "cffcmap.h"
  #include "cfferrs.h"
  
  
    /*************************************************************************/
    /*                                                                       */
    /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
    /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
    /* messages during execution.                                            */
    /*                                                                       */
  #undef  FT_COMPONENT
  #define FT_COMPONENT  trace_cffobjs
  
  
    /*************************************************************************/
    /*                                                                       */
    /*                            SIZE FUNCTIONS                             */
    /*                                                                       */
    /*  Note that we store the global hints in the size's `internal' root    */
    /*  field.                                                               */
    /*                                                                       */
    /*************************************************************************/
  
  
    static PSH_Globals_Funcs
    cff_size_get_globals_funcs( CFF_Size  size )
    {
      CFF_Face          face     = (CFF_Face)size->root.face;
      CFF_Font          font     = (CFF_Font)face->extra.data;
      PSHinter_Service  pshinter = (PSHinter_Service)font->pshinter;
      FT_Module         module;
  
  
      module = FT_Get_Module( size->root.face->driver->root.library,
                              "pshinter" );
      return ( module && pshinter && pshinter->get_globals_funcs )
             ? pshinter->get_globals_funcs( module )
             : 0;
    }
  
  
    FT_LOCAL_DEF( void )
    cff_size_done( FT_Size  cffsize )        /* CFF_Size */
    {
      CFF_Size      size     = (CFF_Size)cffsize;
      CFF_Face      face     = (CFF_Face)size->root.face;
      CFF_Font      font     = (CFF_Font)face->extra.data;
      CFF_Internal  internal = (CFF_Internal)cffsize->internal;
  
  
      if ( internal )
      {
        PSH_Globals_Funcs  funcs;
  
  
        funcs = cff_size_get_globals_funcs( size );
        if ( funcs )
        {
          FT_UInt  i;
  
  
          funcs->destroy( internal->topfont );
  
          for ( i = font->num_subfonts; i > 0; i-- )
            funcs->destroy( internal->subfonts[i - 1] );
        }
  
        /* `internal' is freed by destroy_size (in ftobjs.c) */
      }
    }
  
  
    /* CFF and Type 1 private dictionaries have slightly different      */
    /* structures; we need to synthesize a Type 1 dictionary on the fly */
  
    static void
    cff_make_private_dict( CFF_SubFont  subfont,
                           PS_Private   priv )
    {
      CFF_Private  cpriv = &subfont->private_dict;
      FT_UInt      n, count;
  
  
      FT_MEM_ZERO( priv, sizeof ( *priv ) );
  
      count = priv->num_blue_values = cpriv->num_blue_values;
      for ( n = 0; n < count; n++ )
        priv->blue_values[n] = (FT_Short)cpriv->blue_values[n];
  
      count = priv->num_other_blues = cpriv->num_other_blues;
      for ( n = 0; n < count; n++ )
        priv->other_blues[n] = (FT_Short)cpriv->other_blues[n];
  
      count = priv->num_family_blues = cpriv->num_family_blues;
      for ( n = 0; n < count; n++ )
        priv->family_blues[n] = (FT_Short)cpriv->family_blues[n];
  
      count = priv->num_family_other_blues = cpriv->num_family_other_blues;
      for ( n = 0; n < count; n++ )
        priv->family_other_blues[n] = (FT_Short)cpriv->family_other_blues[n];
  
      priv->blue_scale = cpriv->blue_scale;
      priv->blue_shift = (FT_Int)cpriv->blue_shift;
      priv->blue_fuzz  = (FT_Int)cpriv->blue_fuzz;
  
      priv->standard_width[0]  = (FT_UShort)cpriv->standard_width;
      priv->standard_height[0] = (FT_UShort)cpriv->standard_height;
  
      count = priv->num_snap_widths = cpriv->num_snap_widths;
      for ( n = 0; n < count; n++ )
        priv->snap_widths[n] = (FT_Short)cpriv->snap_widths[n];
  
      count = priv->num_snap_heights = cpriv->num_snap_heights;
      for ( n = 0; n < count; n++ )
        priv->snap_heights[n] = (FT_Short)cpriv->snap_heights[n];
  
      priv->force_bold     = cpriv->force_bold;
      priv->language_group = cpriv->language_group;
      priv->lenIV          = cpriv->lenIV;
    }
  
  
    FT_LOCAL_DEF( FT_Error )
    cff_size_init( FT_Size  cffsize )         /* CFF_Size */
    {
      CFF_Size           size  = (CFF_Size)cffsize;
      FT_Error           error = CFF_Err_Ok;
      PSH_Globals_Funcs  funcs = cff_size_get_globals_funcs( size );
  
  
      if ( funcs )
      {
        CFF_Face      face     = (CFF_Face)cffsize->face;
        CFF_Font      font     = (CFF_Font)face->extra.data;
        CFF_Internal  internal;
  
        PS_PrivateRec  priv;
        FT_Memory      memory = cffsize->face->memory;
  
        FT_UInt  i;
  
  
        if ( FT_NEW( internal ) )
          goto Exit;
  
        cff_make_private_dict( &font->top_font, &priv );
        error = funcs->create( cffsize->face->memory, &priv,
                               &internal->topfont );
        if ( error )
          goto Exit;
  
        for ( i = font->num_subfonts; i > 0; i-- )
        {
          CFF_SubFont  sub = font->subfonts[i - 1];
  
  
          cff_make_private_dict( sub, &priv );
          error = funcs->create( cffsize->face->memory, &priv,
                                 &internal->subfonts[i - 1] );
          if ( error )
            goto Exit;
        }
  
        cffsize->internal = (FT_Size_Internal)(void*)internal;
      }
  
      size->strike_index = 0xFFFFFFFFUL;
  
    Exit:
      return error;
    }
  
  
  #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
  
    FT_LOCAL_DEF( FT_Error )
    cff_size_select( FT_Size   size,
                     FT_ULong  strike_index )
    {
      CFF_Size           cffsize = (CFF_Size)size;
      PSH_Globals_Funcs  funcs;
  
  
      cffsize->strike_index = strike_index;
  
      FT_Select_Metrics( size->face, strike_index );
  
      funcs = cff_size_get_globals_funcs( cffsize );
  
      if ( funcs )
      {
        CFF_Face      face     = (CFF_Face)size->face;
        CFF_Font      font     = (CFF_Font)face->extra.data;
        CFF_Internal  internal = (CFF_Internal)size->internal;
  
        FT_Int   top_upm  = font->top_font.font_dict.units_per_em;
        FT_UInt  i;
  
  
        funcs->set_scale( internal->topfont,
                          size->metrics.x_scale, size->metrics.y_scale,
                          0, 0 );
  
        for ( i = font->num_subfonts; i > 0; i-- )
        {
          CFF_SubFont  sub     = font->subfonts[i - 1];
          FT_Int       sub_upm = sub->font_dict.units_per_em;
          FT_Pos       x_scale, y_scale;
  
  
          if ( top_upm != sub_upm )
          {
            x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm );
            y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm );
          }
          else
          {
            x_scale = size->metrics.x_scale;
            y_scale = size->metrics.y_scale;
          }
  
          funcs->set_scale( internal->subfonts[i - 1],
                            x_scale, y_scale, 0, 0 );
        }
      }
  
      return CFF_Err_Ok;
    }
  
  #endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
  
  
    FT_LOCAL_DEF( FT_Error )
    cff_size_request( FT_Size          size,
                      FT_Size_Request  req )
    {
      CFF_Size           cffsize = (CFF_Size)size;
      PSH_Globals_Funcs  funcs;
  
  
  #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
  
      if ( FT_HAS_FIXED_SIZES( size->face ) )
      {
        CFF_Face      cffface = (CFF_Face)size->face;
        SFNT_Service  sfnt    = (SFNT_Service)cffface->sfnt;
        FT_ULong      strike_index;
  
  
        if ( sfnt->set_sbit_strike( cffface, req, &strike_index ) )
          cffsize->strike_index = 0xFFFFFFFFUL;
        else
          return cff_size_select( size, strike_index );
      }
  
  #endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
  
      FT_Request_Metrics( size->face, req );
  
      funcs = cff_size_get_globals_funcs( cffsize );
  
      if ( funcs )
      {
        CFF_Face      cffface  = (CFF_Face)size->face;
        CFF_Font      font     = (CFF_Font)cffface->extra.data;
        CFF_Internal  internal = (CFF_Internal)size->internal;
  
        FT_Int   top_upm  = font->top_font.font_dict.units_per_em;
        FT_UInt  i;
  
  
        funcs->set_scale( internal->topfont,
                          size->metrics.x_scale, size->metrics.y_scale,
                          0, 0 );
  
        for ( i = font->num_subfonts; i > 0; i-- )
        {
          CFF_SubFont  sub     = font->subfonts[i - 1];
          FT_Int       sub_upm = sub->font_dict.units_per_em;
          FT_Pos       x_scale, y_scale;
  
  
          if ( top_upm != sub_upm )
          {
            x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm );
            y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm );
          }
          else
          {
            x_scale = size->metrics.x_scale;
            y_scale = size->metrics.y_scale;
          }
  
          funcs->set_scale( internal->subfonts[i - 1],
                            x_scale, y_scale, 0, 0 );
        }
      }
  
      return CFF_Err_Ok;
    }
  
  
    /*************************************************************************/
    /*                                                                       */
    /*                            SLOT  FUNCTIONS                            */
    /*                                                                       */
    /*************************************************************************/
  
    FT_LOCAL_DEF( void )
    cff_slot_done( FT_GlyphSlot  slot )
    {
      slot->internal->glyph_hints = 0;
    }
  
  
    FT_LOCAL_DEF( FT_Error )
    cff_slot_init( FT_GlyphSlot  slot )
    {
      CFF_Face          face     = (CFF_Face)slot->face;
      CFF_Font          font     = (CFF_Font)face->extra.data;
      PSHinter_Service  pshinter = (PSHinter_Service)font->pshinter;
  
  
      if ( pshinter )
      {
        FT_Module  module;
  
  
        module = FT_Get_Module( slot->face->driver->root.library,
                                "pshinter" );
        if ( module )
        {
          T2_Hints_Funcs  funcs;
  
  
          funcs = pshinter->get_t2_funcs( module );
          slot->internal->glyph_hints = (void*)funcs;
        }
      }
  
      return CFF_Err_Ok;
    }
  
  
    /*************************************************************************/
    /*                                                                       */
    /*                           FACE  FUNCTIONS                             */
    /*                                                                       */
    /*************************************************************************/
  
    static FT_String*
    cff_strcpy( FT_Memory         memory,
                const FT_String*  source )
    {
      FT_Error    error;
      FT_String*  result;
  
  
      (void)FT_STRDUP( result, source );
  
      FT_UNUSED( error );
  
      return result;
    }
  
  
    FT_LOCAL_DEF( FT_Error )
    cff_face_init( FT_Stream      stream,
                   FT_Face        cffface,        /* CFF_Face */
                   FT_Int         face_index,
                   FT_Int         num_params,
                   FT_Parameter*  params )
    {
      CFF_Face            face = (CFF_Face)cffface;
      FT_Error            error;
      SFNT_Service        sfnt;
      FT_Service_PsCMaps  psnames;
      PSHinter_Service    pshinter;
      FT_Bool             pure_cff    = 1;
      FT_Bool             sfnt_format = 0;
  
  
  #if 0
      FT_FACE_FIND_GLOBAL_SERVICE( face, sfnt,     SFNT );
      FT_FACE_FIND_GLOBAL_SERVICE( face, psnames,  POSTSCRIPT_NAMES );
      FT_FACE_FIND_GLOBAL_SERVICE( face, pshinter, POSTSCRIPT_HINTER );
  
      if ( !sfnt )
        goto Bad_Format;
  #else
      sfnt = (SFNT_Service)FT_Get_Module_Interface(
               cffface->driver->root.library, "sfnt" );
      if ( !sfnt )
        goto Bad_Format;
  
      FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
  
      pshinter = (PSHinter_Service)FT_Get_Module_Interface(
                   cffface->driver->root.library, "pshinter" );
  #endif
  
      /* create input stream from resource */
      if ( FT_STREAM_SEEK( 0 ) )
        goto Exit;
  
      /* check whether we have a valid OpenType file */
      error = sfnt->init_face( stream, face, face_index, num_params, params );
      if ( !error )
      {
        if ( face->format_tag != TTAG_OTTO )  /* `OTTO'; OpenType/CFF font */
        {
          FT_TRACE2(( "[not a valid OpenType/CFF font]\n" ));
          goto Bad_Format;
        }
  
        /* if we are performing a simple font format check, exit immediately */
        if ( face_index < 0 )
          return CFF_Err_Ok;
  
        /* UNDOCUMENTED!  A CFF in an SFNT can have only a single font. */
        if ( face_index > 0 )
        {
          FT_ERROR(( "cff_face_init: invalid face index\n" ));
          error = CFF_Err_Invalid_Argument;
          goto Exit;
        }
  
        sfnt_format = 1;
  
        /* now, the font can be either an OpenType/CFF font, or an SVG CEF */
        /* font; in the latter case it doesn't have a `head' table         */
        error = face->goto_table( face, TTAG_head, stream, 0 );
        if ( !error )
        {
          pure_cff = 0;
  
          /* load font directory */
          error = sfnt->load_face( stream, face, 0, num_params, params );
          if ( error )
            goto Exit;
        }
        else
        {
          /* load the `cmap' table explicitly */
          error = sfnt->load_cmap( face, stream );
          if ( error )
            goto Exit;
  
          /* XXX: we don't load the GPOS table, as OpenType Layout     */
          /* support will be added later to a layout library on top of */
          /* FreeType 2                                                */
        }
  
        /* now load the CFF part of the file */
        error = face->goto_table( face, TTAG_CFF, stream, 0 );
        if ( error )
          goto Exit;
      }
      else
      {
        /* rewind to start of file; we are going to load a pure-CFF font */
        if ( FT_STREAM_SEEK( 0 ) )
          goto Exit;
        error = CFF_Err_Ok;
      }
  
      /* now load and parse the CFF table in the file */
      {
        CFF_Font         cff;
        CFF_FontRecDict  dict;
        FT_Memory        memory = cffface->memory;
        FT_Int32         flags;
        FT_UInt          i;
  
  
        if ( FT_NEW( cff ) )
          goto Exit;
  
        face->extra.data = cff;
        error = cff_font_load( stream, face_index, cff, pure_cff );
        if ( error )
          goto Exit;
  
        cff->pshinter = pshinter;
        cff->psnames  = (void*)psnames;
  
        cffface->face_index = face_index;
  
        /* Complement the root flags with some interesting information. */
        /* Note that this is only necessary for pure CFF and CEF fonts; */
        /* SFNT based fonts use the `name' table instead.               */
  
        cffface->num_glyphs = cff->num_glyphs;
  
        dict = &cff->top_font.font_dict;
  
        /* we need the `PSNames' module for CFF and CEF formats */
        /* which aren't CID-keyed                               */
        if ( dict->cid_registry == 0xFFFFU && !psnames )
        {
          FT_ERROR(( "cff_face_init:" ));
          FT_ERROR(( " cannot open CFF & CEF fonts\n" ));
          FT_ERROR(( "              " ));
          FT_ERROR(( " without the `PSNames' module\n" ));
          goto Bad_Format;
        }
  
        if ( !dict->units_per_em )
          dict->units_per_em = pure_cff ? 1000 : face->root.units_per_EM;
  
        /* Normalize the font matrix so that `matrix->xx' is 1; the */
        /* scaling is done with `units_per_em' then (at this point, */
        /* it already contains the scaling factor, but without      */
        /* normalization of the matrix).                            */
        /*                                                          */
        /* Note that the offsets must be expressed in integer font  */
        /* units.                                                   */
  
        {
          FT_Matrix*  matrix = &dict->font_matrix;
          FT_Vector*  offset = &dict->font_offset;
          FT_ULong*   upm    = &dict->units_per_em;
          FT_Fixed    temp   = FT_ABS( matrix->yy );
  
  
          if ( temp != 0x10000L )
          {
            *upm = FT_DivFix( *upm, temp );
  
            matrix->xx = FT_DivFix( matrix->xx, temp );
            matrix->yx = FT_DivFix( matrix->yx, temp );
            matrix->xy = FT_DivFix( matrix->xy, temp );
            matrix->yy = FT_DivFix( matrix->yy, temp );
            offset->x  = FT_DivFix( offset->x,  temp );
            offset->y  = FT_DivFix( offset->y,  temp );
          }
  
          offset->x >>= 16;
          offset->y >>= 16;
        }
  
        for ( i = cff->num_subfonts; i > 0; i-- )
        {
          CFF_FontRecDict  sub = &cff->subfonts[i - 1]->font_dict;
          CFF_FontRecDict  top = &cff->top_font.font_dict;
  
          FT_Matrix*  matrix;
          FT_Vector*  offset;
          FT_ULong*   upm;
          FT_Fixed    temp;
  
  
          if ( sub->units_per_em )
          {
            FT_Int  scaling;
  
  
            if ( top->units_per_em > 1 && sub->units_per_em > 1 )
              scaling = FT_MIN( top->units_per_em, sub->units_per_em );
            else
              scaling = 1;
  
            FT_Matrix_Multiply_Scaled( &top->font_matrix,
                                       &sub->font_matrix,
                                       scaling );
            FT_Vector_Transform_Scaled( &sub->font_offset,
                                        &top->font_matrix,
                                        scaling );
  
            sub->units_per_em = FT_MulDiv( sub->units_per_em,
                                           top->units_per_em,
                                           scaling );
          }
          else
          {
            sub->font_matrix = top->font_matrix;
            sub->font_offset = top->font_offset;
  
            sub->units_per_em = top->units_per_em;
          }
  
          matrix = &sub->font_matrix;
          offset = &sub->font_offset;
          upm    = &sub->units_per_em;
          temp   = FT_ABS( matrix->yy );
  
          if ( temp != 0x10000L )
          {
            *upm = FT_DivFix( *upm, temp );
  
            /* if *upm is larger than 100*1000 we divide by 1000 --     */
            /* this can happen if e.g. there is no top-font FontMatrix  */
            /* and the subfont FontMatrix already contains the complete */
            /* scaling for the subfont (see section 5.11 of the PLRM)   */
  
            /* 100 is a heuristic value */
  
            if ( *upm > 100L * 1000L )
              *upm = ( *upm + 500 ) / 1000;
  
            matrix->xx = FT_DivFix( matrix->xx, temp );
            matrix->yx = FT_DivFix( matrix->yx, temp );
            matrix->xy = FT_DivFix( matrix->xy, temp );
            matrix->yy = FT_DivFix( matrix->yy, temp );
            offset->x  = FT_DivFix( offset->x,  temp );
            offset->y  = FT_DivFix( offset->y,  temp );
          }
  
          offset->x >>= 16;
          offset->y >>= 16;
        }
  
        if ( pure_cff )
        {
          char*  style_name = NULL;
  
  
          /* set up num_faces */
          cffface->num_faces = cff->num_faces;
  
          /* compute number of glyphs */
          if ( dict->cid_registry != 0xFFFFU )
            cffface->num_glyphs = cff->charset.max_cid;
          else
            cffface->num_glyphs = cff->charstrings_index.count;
  
          /* set global bbox, as well as EM size */
          cffface->bbox.xMin =   dict->font_bbox.xMin             >> 16;
          cffface->bbox.yMin =   dict->font_bbox.yMin             >> 16;
          cffface->bbox.xMax = ( dict->font_bbox.xMax + 0xFFFFU ) >> 16;
          cffface->bbox.yMax = ( dict->font_bbox.yMax + 0xFFFFU ) >> 16;
  
          cffface->units_per_EM = (FT_UShort)( dict->units_per_em );
  
          cffface->ascender  = (FT_Short)( cffface->bbox.yMax );
          cffface->descender = (FT_Short)( cffface->bbox.yMin );
  
          cffface->height = (FT_Short)( ( cffface->units_per_EM * 12 ) / 10 );
          if ( cffface->height < cffface->ascender - cffface->descender )
            cffface->height = (FT_Short)( cffface->ascender - cffface->descender );
  
          cffface->underline_position  =
            (FT_Short)( dict->underline_position >> 16 );
          cffface->underline_thickness =
            (FT_Short)( dict->underline_thickness >> 16 );
  
          /* retrieve font family & style name */
          cffface->family_name = cff_index_get_name( &cff->name_index,
                                                     face_index );
  
          if ( cffface->family_name )
          {
            char*  full   = cff_index_get_sid_string( &cff->string_index,
                                                      dict->full_name,
                                                      psnames );
            char*  fullp  = full;
            char*  family = cffface->family_name;
            char*  family_name = 0;
  
  
            if ( dict->family_name )
            {
              family_name = cff_index_get_sid_string( &cff->string_index,
                                                      dict->family_name,
                                                      psnames);
              if ( family_name )
                family = family_name;
            }
  
            /* We try to extract the style name from the full name.   */
            /* We need to ignore spaces and dashes during the search. */
            if ( full && family )
            {
              while ( *fullp )
              {
                /* skip common characters at the start of both strings */
                if ( *fullp == *family )
                {
                  family++;
                  fullp++;
                  continue;
                }
  
                /* ignore spaces and dashes in full name during comparison */
                if ( *fullp == ' ' || *fullp == '-' )
                {
                  fullp++;
                  continue;
                }
  
                /* ignore spaces and dashes in family name during comparison */
                if ( *family == ' ' || *family == '-' )
                {
                  family++;
                  continue;
                }
  
                if ( !*family && *fullp )
                {
                  /* The full name begins with the same characters as the  */
                  /* family name, with spaces and dashes removed.  In this */
                  /* case, the remaining string in `fullp' will be used as */
                  /* the style name.                                       */
                  style_name = cff_strcpy( memory, fullp );
                }
                break;
              }
  
              if ( family_name )
                FT_FREE( family_name );
              FT_FREE( full );
            }
          }
          else
          {
            char  *cid_font_name =
                     cff_index_get_sid_string( &cff->string_index,
                                               dict->cid_font_name,
                                               psnames );
  
  
            /* do we have a `/FontName' for a CID-keyed font? */
            if ( cid_font_name )
              cffface->family_name = cid_font_name;
          }
  
          if ( style_name )
            cffface->style_name = style_name;
          else
            /* assume "Regular" style if we don't know better */
            cffface->style_name = cff_strcpy( memory, (char *)"Regular" );
  
          /*******************************************************************/
          /*                                                                 */
          /* Compute face flags.                                             */
          /*                                                                 */
          flags = FT_FACE_FLAG_SCALABLE   |       /* scalable outlines */
                  FT_FACE_FLAG_HORIZONTAL |       /* horizontal data   */
                  FT_FACE_FLAG_HINTER;            /* has native hinter */
  
          if ( sfnt_format )
            flags |= FT_FACE_FLAG_SFNT;
  
          /* fixed width font? */
          if ( dict->is_fixed_pitch )
            flags |= FT_FACE_FLAG_FIXED_WIDTH;
  
    /* XXX: WE DO NOT SUPPORT KERNING METRICS IN THE GPOS TABLE FOR NOW */
  #if 0
          /* kerning available? */
          if ( face->kern_pairs )
            flags |= FT_FACE_FLAG_KERNING;
  #endif
  
          cffface->face_flags = flags;
  
          /*******************************************************************/
          /*                                                                 */
          /* Compute style flags.                                            */
          /*                                                                 */
          flags = 0;
  
          if ( dict->italic_angle )
            flags |= FT_STYLE_FLAG_ITALIC;
  
          {
            char  *weight = cff_index_get_sid_string( &cff->string_index,
                                                      dict->weight,
                                                      psnames );
  
  
            if ( weight )
              if ( !ft_strcmp( weight, "Bold"  ) ||
                   !ft_strcmp( weight, "Black" ) )
                flags |= FT_STYLE_FLAG_BOLD;
            FT_FREE( weight );
          }
  
          /* double check */
          if ( !(flags & FT_STYLE_FLAG_BOLD) && cffface->style_name )
            if ( !ft_strncmp( cffface->style_name, "Bold", 4 )  ||
                 !ft_strncmp( cffface->style_name, "Black", 5 ) )
              flags |= FT_STYLE_FLAG_BOLD;
  
          cffface->style_flags = flags;
        }
  
  
  #ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES
        /* CID-keyed CFF fonts don't have glyph names -- the SFNT loader */
        /* has unset this flag because of the 3.0 `post' table.          */
        if ( dict->cid_registry == 0xFFFFU )
          cffface->face_flags |= FT_FACE_FLAG_GLYPH_NAMES;
  #endif
  
        if ( dict->cid_registry != 0xFFFFU && pure_cff )
          cffface->face_flags |= FT_FACE_FLAG_CID_KEYED;
  
  
        /*******************************************************************/
        /*                                                                 */
        /* Compute char maps.                                              */
        /*                                                                 */
  
        /* Try to synthesize a Unicode charmap if there is none available */
        /* already.  If an OpenType font contains a Unicode "cmap", we    */
        /* will use it, whatever be in the CFF part of the file.          */
        {
          FT_CharMapRec  cmaprec;
          FT_CharMap     cmap;
          FT_UInt        nn;
          CFF_Encoding   encoding = &cff->encoding;
  
  
          for ( nn = 0; nn < (FT_UInt)cffface->num_charmaps; nn++ )
          {
            cmap = cffface->charmaps[nn];
  
            /* Windows Unicode (3,1)? */
            if ( cmap->platform_id == 3 && cmap->encoding_id == 1 )
              goto Skip_Unicode;
  
            /* Deprecated Unicode platform id? */
            if ( cmap->platform_id == 0 )
              goto Skip_Unicode; /* Standard Unicode (deprecated) */
          }
  
          /* since CID-keyed fonts don't contain glyph names, we can't */
          /* construct a cmap                                          */
          if ( pure_cff && cff->top_font.font_dict.cid_registry != 0xFFFFU )
            goto Exit;
  
          /* we didn't find a Unicode charmap -- synthesize one */
          cmaprec.face        = cffface;
          cmaprec.platform_id = 3;
          cmaprec.encoding_id = 1;
          cmaprec.encoding    = FT_ENCODING_UNICODE;
  
          nn = (FT_UInt)cffface->num_charmaps;
  
          FT_CMap_New( &cff_cmap_unicode_class_rec, NULL, &cmaprec, NULL );
  
          /* if no Unicode charmap was previously selected, select this one */
          if ( cffface->charmap == NULL && nn != (FT_UInt)cffface->num_charmaps )
            cffface->charmap = cffface->charmaps[nn];
  
        Skip_Unicode:
          if ( encoding->count > 0 )
          {
            FT_CMap_Class  clazz;
  
  
            cmaprec.face        = cffface;
            cmaprec.platform_id = 7;  /* Adobe platform id */
  
            if ( encoding->offset == 0 )
            {
              cmaprec.encoding_id = TT_ADOBE_ID_STANDARD;
              cmaprec.encoding    = FT_ENCODING_ADOBE_STANDARD;
              clazz               = &cff_cmap_encoding_class_rec;
            }
            else if ( encoding->offset == 1 )
            {
              cmaprec.encoding_id = TT_ADOBE_ID_EXPERT;
              cmaprec.encoding    = FT_ENCODING_ADOBE_EXPERT;
              clazz               = &cff_cmap_encoding_class_rec;
            }
            else
            {
              cmaprec.encoding_id = TT_ADOBE_ID_CUSTOM;
              cmaprec.encoding    = FT_ENCODING_ADOBE_CUSTOM;
              clazz               = &cff_cmap_encoding_class_rec;
            }
  
            FT_CMap_New( clazz, NULL, &cmaprec, NULL );
          }
        }
      }
  
    Exit:
      return error;
  
    Bad_Format:
      error = CFF_Err_Unknown_File_Format;
      goto Exit;
    }
  
  
    FT_LOCAL_DEF( void )
    cff_face_done( FT_Face  cffface )         /* CFF_Face */
    {
      CFF_Face      face = (CFF_Face)cffface;
      FT_Memory     memory;
      SFNT_Service  sfnt;
  
  
      if ( !face )
        return;
  
      memory = cffface->memory;
      sfnt   = (SFNT_Service)face->sfnt;
  
      if ( sfnt )
        sfnt->done_face( face );
  
      {
        CFF_Font  cff = (CFF_Font)face->extra.data;
  
  
        if ( cff )
        {
          cff_font_done( cff );
          FT_FREE( face->extra.data );
        }
      }
    }
  
  
    FT_LOCAL_DEF( FT_Error )
    cff_driver_init( FT_Module  module )
    {
      FT_UNUSED( module );
  
      return CFF_Err_Ok;
    }
  
  
    FT_LOCAL_DEF( void )
    cff_driver_done( FT_Module  module )
    {
      FT_UNUSED( module );
    }
  
  
  /* END */
  