initial commit

1 files changed, 683 insertions, 0 deletions

diff --git a/src/freetype/cffgload.c b/src/freetype/cffgload.c
new file mode 100644
index 0000000..a6b9c95
--- /dev/null
+++ b/src/freetype/cffgload.c
@@ -0,0 +1,683 @@
+/***************************************************************************/
+/*                                                                         */
+/*  cffgload.c                                                             */
+/*                                                                         */
+/*    OpenType Glyph Loader (body).                                        */
+/*                                                                         */
+/*  Copyright 1996-2018 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_STREAM_H
+#include FT_INTERNAL_SFNT_H
+#include FT_INTERNAL_CALC_H
+#include FT_INTERNAL_POSTSCRIPT_AUX_H
+#include FT_OUTLINE_H
+#include FT_DRIVER_H
+
+#include "cffload.h"
+#include "cffgload.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_cffgload
+
+
+  FT_LOCAL_DEF( FT_Error )
+  cff_get_glyph_data( TT_Face    face,
+                      FT_UInt    glyph_index,
+                      FT_Byte**  pointer,
+                      FT_ULong*  length )
+  {
+#ifdef FT_CONFIG_OPTION_INCREMENTAL
+    /* For incremental fonts get the character data using the */
+    /* callback function.                                     */
+    if ( face->root.internal->incremental_interface )
+    {
+      FT_Data   data;
+      FT_Error  error =
+                  face->root.internal->incremental_interface->funcs->get_glyph_data(
+                    face->root.internal->incremental_interface->object,
+                    glyph_index, &data );
+
+
+      *pointer = (FT_Byte*)data.pointer;
+      *length  = (FT_ULong)data.length;
+
+      return error;
+    }
+    else
+#endif /* FT_CONFIG_OPTION_INCREMENTAL */
+
+    {
+      CFF_Font  cff = (CFF_Font)(face->extra.data);
+
+
+      return cff_index_access_element( &cff->charstrings_index, glyph_index,
+                                       pointer, length );
+    }
+  }
+
+
+  FT_LOCAL_DEF( void )
+  cff_free_glyph_data( TT_Face    face,
+                       FT_Byte**  pointer,
+                       FT_ULong   length )
+  {
+#ifndef FT_CONFIG_OPTION_INCREMENTAL
+    FT_UNUSED( length );
+#endif
+
+#ifdef FT_CONFIG_OPTION_INCREMENTAL
+    /* For incremental fonts get the character data using the */
+    /* callback function.                                     */
+    if ( face->root.internal->incremental_interface )
+    {
+      FT_Data  data;
+
+
+      data.pointer = *pointer;
+      data.length  = (FT_Int)length;
+
+      face->root.internal->incremental_interface->funcs->free_glyph_data(
+        face->root.internal->incremental_interface->object, &data );
+    }
+    else
+#endif /* FT_CONFIG_OPTION_INCREMENTAL */
+
+    {
+      CFF_Font  cff = (CFF_Font)(face->extra.data);
+
+
+      cff_index_forget_element( &cff->charstrings_index, pointer );
+    }
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /**********                                                      *********/
+  /**********                                                      *********/
+  /**********            COMPUTE THE MAXIMUM ADVANCE WIDTH         *********/
+  /**********                                                      *********/
+  /**********    The following code is in charge of computing      *********/
+  /**********    the maximum advance width of the font.  It        *********/
+  /**********    quickly processes each glyph charstring to        *********/
+  /**********    extract the value from either a `sbw' or `seac'   *********/
+  /**********    operator.                                         *********/
+  /**********                                                      *********/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+#if 0 /* unused until we support pure CFF fonts */
+
+
+  FT_LOCAL_DEF( FT_Error )
+  cff_compute_max_advance( TT_Face  face,
+                           FT_Int*  max_advance )
+  {
+    FT_Error     error = FT_Err_Ok;
+    CFF_Decoder  decoder;
+    FT_Int       glyph_index;
+    CFF_Font     cff = (CFF_Font)face->other;
+
+    PSAux_Service            psaux         = (PSAux_Service)face->psaux;
+    const CFF_Decoder_Funcs  decoder_funcs = psaux->cff_decoder_funcs;
+
+
+    *max_advance = 0;
+
+    /* Initialize load decoder */
+    decoder_funcs->init( &decoder, face, 0, 0, 0, 0, 0, 0 );
+
+    decoder.builder.metrics_only = 1;
+    decoder.builder.load_points  = 0;
+
+    /* For each glyph, parse the glyph charstring and extract */
+    /* the advance width.                                     */
+    for ( glyph_index = 0; glyph_index < face->root.num_glyphs;
+          glyph_index++ )
+    {
+      FT_Byte*  charstring;
+      FT_ULong  charstring_len;
+
+
+      /* now get load the unscaled outline */
+      error = cff_get_glyph_data( face, glyph_index,
+                                  &charstring, &charstring_len );
+      if ( !error )
+      {
+        error = decoder_funcs->prepare( &decoder, size, glyph_index );
+        if ( !error )
+          error = decoder_funcs->parse_charstrings_old( &decoder,
+                                                        charstring,
+                                                        charstring_len,
+                                                        0 );
+
+        cff_free_glyph_data( face, &charstring, &charstring_len );
+      }
+
+      /* ignore the error if one has occurred -- skip to next glyph */
+      error = FT_Err_Ok;
+    }
+
+    *max_advance = decoder.builder.advance.x;
+
+    return FT_Err_Ok;
+  }
+
+
+#endif /* 0 */
+
+
+  FT_LOCAL_DEF( FT_Error )
+  cff_slot_load( CFF_GlyphSlot  glyph,
+                 CFF_Size       size,
+                 FT_UInt        glyph_index,
+                 FT_Int32       load_flags )
+  {
+    FT_Error     error;
+    CFF_Decoder  decoder;
+    PS_Decoder   psdecoder;
+    TT_Face      face = (TT_Face)glyph->root.face;
+    FT_Bool      hinting, scaled, force_scaling;
+    CFF_Font     cff  = (CFF_Font)face->extra.data;
+
+    PSAux_Service            psaux         = (PSAux_Service)face->psaux;
+    const CFF_Decoder_Funcs  decoder_funcs = psaux->cff_decoder_funcs;
+
+    FT_Matrix    font_matrix;
+    FT_Vector    font_offset;
+
+
+    force_scaling = FALSE;
+
+    /* in a CID-keyed font, consider `glyph_index' as a CID and map */
+    /* it immediately to the real glyph_index -- if it isn't a      */
+    /* subsetted font, glyph_indices and CIDs are identical, though */
+    if ( cff->top_font.font_dict.cid_registry != 0xFFFFU &&
+         cff->charset.cids                               )
+    {
+      /* don't handle CID 0 (.notdef) which is directly mapped to GID 0 */
+      if ( glyph_index != 0 )
+      {
+        glyph_index = cff_charset_cid_to_gindex( &cff->charset,
+                                                 glyph_index );
+        if ( glyph_index == 0 )
+          return FT_THROW( Invalid_Argument );
+      }
+    }
+    else if ( glyph_index >= cff->num_glyphs )
+      return FT_THROW( Invalid_Argument );
+
+    if ( load_flags & FT_LOAD_NO_RECURSE )
+      load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING;
+
+    glyph->x_scale = 0x10000L;
+    glyph->y_scale = 0x10000L;
+    if ( size )
+    {
+      glyph->x_scale = size->root.metrics.x_scale;
+      glyph->y_scale = size->root.metrics.y_scale;
+    }
+
+#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
+
+    /* try to load embedded bitmap if any              */
+    /*                                                 */
+    /* XXX: The convention should be emphasized in     */
+    /*      the documents because it can be confusing. */
+    if ( size )
+    {
+      CFF_Face      cff_face = (CFF_Face)size->root.face;
+      SFNT_Service  sfnt     = (SFNT_Service)cff_face->sfnt;
+      FT_Stream     stream   = cff_face->root.stream;
+
+
+      if ( size->strike_index != 0xFFFFFFFFUL      &&
+           sfnt->load_eblc                         &&
+           ( load_flags & FT_LOAD_NO_BITMAP ) == 0 )
+      {
+        TT_SBit_MetricsRec  metrics;
+
+
+        error = sfnt->load_sbit_image( face,
+                                       size->strike_index,
+                                       glyph_index,
+                                       (FT_UInt)load_flags,
+                                       stream,
+                                       &glyph->root.bitmap,
+                                       &metrics );
+
+        if ( !error )
+        {
+          FT_Bool    has_vertical_info;
+          FT_UShort  advance;
+          FT_Short   dummy;
+
+
+          glyph->root.outline.n_points   = 0;
+          glyph->root.outline.n_contours = 0;
+
+          glyph->root.metrics.width  = (FT_Pos)metrics.width  << 6;
+          glyph->root.metrics.height = (FT_Pos)metrics.height << 6;
+
+          glyph->root.metrics.horiBearingX = (FT_Pos)metrics.horiBearingX << 6;
+          glyph->root.metrics.horiBearingY = (FT_Pos)metrics.horiBearingY << 6;
+          glyph->root.metrics.horiAdvance  = (FT_Pos)metrics.horiAdvance  << 6;
+
+          glyph->root.metrics.vertBearingX = (FT_Pos)metrics.vertBearingX << 6;
+          glyph->root.metrics.vertBearingY = (FT_Pos)metrics.vertBearingY << 6;
+          glyph->root.metrics.vertAdvance  = (FT_Pos)metrics.vertAdvance  << 6;
+
+          glyph->root.format = FT_GLYPH_FORMAT_BITMAP;
+
+          if ( load_flags & FT_LOAD_VERTICAL_LAYOUT )
+          {
+            glyph->root.bitmap_left = metrics.vertBearingX;
+            glyph->root.bitmap_top  = metrics.vertBearingY;
+          }
+          else
+          {
+            glyph->root.bitmap_left = metrics.horiBearingX;
+            glyph->root.bitmap_top  = metrics.horiBearingY;
+          }
+
+          /* compute linear advance widths */
+
+          (void)( (SFNT_Service)face->sfnt )->get_metrics( face, 0,
+                                                           glyph_index,
+                                                           &dummy,
+                                                           &advance );
+          glyph->root.linearHoriAdvance = advance;
+
+          has_vertical_info = FT_BOOL(
+                                face->vertical_info                   &&
+                                face->vertical.number_Of_VMetrics > 0 );
+
+          /* get the vertical metrics from the vmtx table if we have one */
+          if ( has_vertical_info )
+          {
+            (void)( (SFNT_Service)face->sfnt )->get_metrics( face, 1,
+                                                             glyph_index,
+                                                             &dummy,
+                                                             &advance );
+            glyph->root.linearVertAdvance = advance;
+          }
+          else
+          {
+            /* make up vertical ones */
+            if ( face->os2.version != 0xFFFFU )
+              glyph->root.linearVertAdvance = (FT_Pos)
+                ( face->os2.sTypoAscender - face->os2.sTypoDescender );
+            else
+              glyph->root.linearVertAdvance = (FT_Pos)
+                ( face->horizontal.Ascender - face->horizontal.Descender );
+          }
+
+          return error;
+        }
+      }
+    }
+
+#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
+
+    /* return immediately if we only want the embedded bitmaps */
+    if ( load_flags & FT_LOAD_SBITS_ONLY )
+      return FT_THROW( Invalid_Argument );
+
+    /* if we have a CID subfont, use its matrix (which has already */
+    /* been multiplied with the root matrix)                       */
+
+    /* this scaling is only relevant if the PS hinter isn't active */
+    if ( cff->num_subfonts )
+    {
+      FT_Long  top_upm, sub_upm;
+      FT_Byte  fd_index = cff_fd_select_get( &cff->fd_select,
+                                             glyph_index );
+
+
+      if ( fd_index >= cff->num_subfonts )
+        fd_index = (FT_Byte)( cff->num_subfonts - 1 );
+
+      top_upm = (FT_Long)cff->top_font.font_dict.units_per_em;
+      sub_upm = (FT_Long)cff->subfonts[fd_index]->font_dict.units_per_em;
+
+
+      font_matrix = cff->subfonts[fd_index]->font_dict.font_matrix;
+      font_offset = cff->subfonts[fd_index]->font_dict.font_offset;
+
+      if ( top_upm != sub_upm )
+      {
+        glyph->x_scale = FT_MulDiv( glyph->x_scale, top_upm, sub_upm );
+        glyph->y_scale = FT_MulDiv( glyph->y_scale, top_upm, sub_upm );
+
+        force_scaling = TRUE;
+      }
+    }
+    else
+    {
+      font_matrix = cff->top_font.font_dict.font_matrix;
+      font_offset = cff->top_font.font_dict.font_offset;
+    }
+
+    glyph->root.outline.n_points   = 0;
+    glyph->root.outline.n_contours = 0;
+
+    /* top-level code ensures that FT_LOAD_NO_HINTING is set */
+    /* if FT_LOAD_NO_SCALE is active                         */
+    hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_HINTING ) == 0 );
+    scaled  = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE   ) == 0 );
+
+    glyph->hint        = hinting;
+    glyph->scaled      = scaled;
+    glyph->root.format = FT_GLYPH_FORMAT_OUTLINE;  /* by default */
+
+    {
+#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
+      PS_Driver  driver = (PS_Driver)FT_FACE_DRIVER( face );
+#endif
+
+
+      FT_Byte*  charstring;
+      FT_ULong  charstring_len;
+
+
+      decoder_funcs->init( &decoder, face, size, glyph, hinting,
+                           FT_LOAD_TARGET_MODE( load_flags ),
+                           cff_get_glyph_data,
+                           cff_free_glyph_data );
+
+      /* this is for pure CFFs */
+      if ( load_flags & FT_LOAD_ADVANCE_ONLY )
+        decoder.width_only = TRUE;
+
+      decoder.builder.no_recurse =
+        (FT_Bool)( load_flags & FT_LOAD_NO_RECURSE );
+
+      /* now load the unscaled outline */
+      error = cff_get_glyph_data( face, glyph_index,
+                                  &charstring, &charstring_len );
+      if ( error )
+        goto Glyph_Build_Finished;
+
+      error = decoder_funcs->prepare( &decoder, size, glyph_index );
+      if ( error )
+        goto Glyph_Build_Finished;
+
+#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
+      /* choose which CFF renderer to use */
+      if ( driver->hinting_engine == FT_HINTING_FREETYPE )
+        error = decoder_funcs->parse_charstrings_old( &decoder,
+                                                      charstring,
+                                                      charstring_len,
+                                                      0 );
+      else
+#endif
+      {
+        psaux->ps_decoder_init( &psdecoder, &decoder, FALSE );
+
+        error = decoder_funcs->parse_charstrings( &psdecoder,
+                                                  charstring,
+                                                  charstring_len );
+
+        /* Adobe's engine uses 16.16 numbers everywhere;              */
+        /* as a consequence, glyphs larger than 2000ppem get rejected */
+        if ( FT_ERR_EQ( error, Glyph_Too_Big ) )
+        {
+          /* this time, we retry unhinted and scale up the glyph later on */
+          /* (the engine uses and sets the hardcoded value 0x10000 / 64 = */
+          /* 0x400 for both `x_scale' and `y_scale' in this case)         */
+          hinting       = FALSE;
+          force_scaling = TRUE;
+          glyph->hint   = hinting;
+
+          error = decoder_funcs->parse_charstrings( &psdecoder,
+                                                    charstring,
+                                                    charstring_len );
+        }
+      }
+
+      cff_free_glyph_data( face, &charstring, charstring_len );
+
+      if ( error )
+        goto Glyph_Build_Finished;
+
+#ifdef FT_CONFIG_OPTION_INCREMENTAL
+      /* Control data and length may not be available for incremental */
+      /* fonts.                                                       */
+      if ( face->root.internal->incremental_interface )
+      {
+        glyph->root.control_data = NULL;
+        glyph->root.control_len = 0;
+      }
+      else
+#endif /* FT_CONFIG_OPTION_INCREMENTAL */
+
+      /* We set control_data and control_len if charstrings is loaded. */
+      /* See how charstring loads at cff_index_access_element() in     */
+      /* cffload.c.                                                    */
+      {
+        CFF_Index  csindex = &cff->charstrings_index;
+
+
+        if ( csindex->offsets )
+        {
+          glyph->root.control_data = csindex->bytes +
+                                     csindex->offsets[glyph_index] - 1;
+          glyph->root.control_len  = (FT_Long)charstring_len;
+        }
+      }
+
+  Glyph_Build_Finished:
+      /* save new glyph tables, if no error */
+      if ( !error )
+        decoder.builder.funcs.done( &decoder.builder );
+      /* XXX: anything to do for broken glyph entry? */
+    }
+
+#ifdef FT_CONFIG_OPTION_INCREMENTAL
+
+    /* Incremental fonts can optionally override the metrics. */
+    if ( !error                                                               &&
+         face->root.internal->incremental_interface                           &&
+         face->root.internal->incremental_interface->funcs->get_glyph_metrics )
+    {
+      FT_Incremental_MetricsRec  metrics;
+
+
+      metrics.bearing_x = decoder.builder.left_bearing.x;
+      metrics.bearing_y = 0;
+      metrics.advance   = decoder.builder.advance.x;
+      metrics.advance_v = decoder.builder.advance.y;
+
+      error = face->root.internal->incremental_interface->funcs->get_glyph_metrics(
+                face->root.internal->incremental_interface->object,
+                glyph_index, FALSE, &metrics );
+
+      decoder.builder.left_bearing.x = metrics.bearing_x;
+      decoder.builder.advance.x      = metrics.advance;
+      decoder.builder.advance.y      = metrics.advance_v;
+    }
+
+#endif /* FT_CONFIG_OPTION_INCREMENTAL */
+
+    if ( !error )
+    {
+      /* Now, set the metrics -- this is rather simple, as   */
+      /* the left side bearing is the xMin, and the top side */
+      /* bearing the yMax.                                   */
+
+      /* For composite glyphs, return only left side bearing and */
+      /* advance width.                                          */
+      if ( load_flags & FT_LOAD_NO_RECURSE )
+      {
+        FT_Slot_Internal  internal = glyph->root.internal;
+
+
+        glyph->root.metrics.horiBearingX = decoder.builder.left_bearing.x;
+        glyph->root.metrics.horiAdvance  = decoder.glyph_width;
+        internal->glyph_matrix           = font_matrix;
+        internal->glyph_delta            = font_offset;
+        internal->glyph_transformed      = 1;
+      }
+      else
+      {
+        FT_BBox            cbox;
+        FT_Glyph_Metrics*  metrics = &glyph->root.metrics;
+        FT_Bool            has_vertical_info;
+
+
+        if ( face->horizontal.number_Of_HMetrics )
+        {
+          FT_Short   horiBearingX = 0;
+          FT_UShort  horiAdvance  = 0;
+
+
+          ( (SFNT_Service)face->sfnt )->get_metrics( face, 0,
+                                                     glyph_index,
+                                                     &horiBearingX,
+                                                     &horiAdvance );
+          metrics->horiAdvance          = horiAdvance;
+          metrics->horiBearingX         = horiBearingX;
+          glyph->root.linearHoriAdvance = horiAdvance;
+        }
+        else
+        {
+          /* copy the _unscaled_ advance width */
+          metrics->horiAdvance          = decoder.glyph_width;
+          glyph->root.linearHoriAdvance = decoder.glyph_width;
+        }
+
+        glyph->root.internal->glyph_transformed = 0;
+
+        has_vertical_info = FT_BOOL( face->vertical_info                   &&
+                                     face->vertical.number_Of_VMetrics > 0 );
+
+        /* get the vertical metrics from the vmtx table if we have one */
+        if ( has_vertical_info )
+        {
+          FT_Short   vertBearingY = 0;
+          FT_UShort  vertAdvance  = 0;
+
+
+          ( (SFNT_Service)face->sfnt )->get_metrics( face, 1,
+                                                     glyph_index,
+                                                     &vertBearingY,
+                                                     &vertAdvance );
+          metrics->vertBearingY = vertBearingY;
+          metrics->vertAdvance  = vertAdvance;
+        }
+        else
+        {
+          /* make up vertical ones */
+          if ( face->os2.version != 0xFFFFU )
+            metrics->vertAdvance = (FT_Pos)( face->os2.sTypoAscender -
+                                             face->os2.sTypoDescender );
+          else
+            metrics->vertAdvance = (FT_Pos)( face->horizontal.Ascender -
+                                             face->horizontal.Descender );
+        }
+
+        glyph->root.linearVertAdvance = metrics->vertAdvance;
+
+        glyph->root.format = FT_GLYPH_FORMAT_OUTLINE;
+
+        glyph->root.outline.flags = 0;
+        if ( size && size->root.metrics.y_ppem < 24 )
+          glyph->root.outline.flags |= FT_OUTLINE_HIGH_PRECISION;
+
+        glyph->root.outline.flags |= FT_OUTLINE_REVERSE_FILL;
+
+        /* apply the font matrix, if any */
+        if ( font_matrix.xx != 0x10000L || font_matrix.yy != 0x10000L ||
+             font_matrix.xy != 0        || font_matrix.yx != 0        )
+        {
+          FT_Outline_Transform( &glyph->root.outline, &font_matrix );
+
+          metrics->horiAdvance = FT_MulFix( metrics->horiAdvance,
+                                            font_matrix.xx );
+          metrics->vertAdvance = FT_MulFix( metrics->vertAdvance,
+                                            font_matrix.yy );
+        }
+
+        if ( font_offset.x || font_offset.y )
+        {
+          FT_Outline_Translate( &glyph->root.outline,
+                                font_offset.x,
+                                font_offset.y );
+
+          metrics->horiAdvance += font_offset.x;
+          metrics->vertAdvance += font_offset.y;
+        }
+
+        if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 || force_scaling )
+        {
+          /* scale the outline and the metrics */
+          FT_Int       n;
+          FT_Outline*  cur     = &glyph->root.outline;
+          FT_Vector*   vec     = cur->points;
+          FT_Fixed     x_scale = glyph->x_scale;
+          FT_Fixed     y_scale = glyph->y_scale;
+
+
+          /* First of all, scale the points */
+          if ( !hinting || !decoder.builder.hints_funcs )
+            for ( n = cur->n_points; n > 0; n--, vec++ )
+            {
+              vec->x = FT_MulFix( vec->x, x_scale );
+              vec->y = FT_MulFix( vec->y, y_scale );
+            }
+
+          /* Then scale the metrics */
+          metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale );
+          metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale );
+        }
+
+        /* compute the other metrics */
+        FT_Outline_Get_CBox( &glyph->root.outline, &cbox );
+
+        metrics->width  = cbox.xMax - cbox.xMin;
+        metrics->height = cbox.yMax - cbox.yMin;
+
+        metrics->horiBearingX = cbox.xMin;
+        metrics->horiBearingY = cbox.yMax;
+
+        if ( has_vertical_info )
+          metrics->vertBearingX = metrics->horiBearingX -
+                                    metrics->horiAdvance / 2;
+        else
+        {
+          if ( load_flags & FT_LOAD_VERTICAL_LAYOUT )
+            ft_synthesize_vertical_metrics( metrics,
+                                            metrics->vertAdvance );
+        }
+      }
+    }
+
+    return error;
+  }
+
+
+/* END */