misc/libfreetype/src/cid/cidgload.c
author unc0rr
Wed, 05 Dec 2012 23:51:04 +0400
branchflibqtfrontend
changeset 8230 bd4b8f9488a4
parent 5172 88f2e05288ba
permissions -rw-r--r--
Show who's in game to spectators
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/***************************************************************************/
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/*                                                                         */
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/*  cidgload.c                                                             */
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/*                                                                         */
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/*    CID-keyed Type1 Glyph Loader (body).                                 */
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/*                                                                         */
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/*  Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 by */
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/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
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/*                                                                         */
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/*  This file is part of the FreeType project, and may only be used,       */
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/*  modified, and distributed under the terms of the FreeType project      */
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/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
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/*  this file you indicate that you have read the license and              */
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/*  understand and accept it fully.                                        */
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/*                                                                         */
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/***************************************************************************/
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#include <ft2build.h>
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#include "cidload.h"
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#include "cidgload.h"
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#include FT_INTERNAL_DEBUG_H
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#include FT_INTERNAL_STREAM_H
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#include FT_OUTLINE_H
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#include FT_INTERNAL_CALC_H
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#include "ciderrs.h"
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  /*************************************************************************/
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  /*                                                                       */
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  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
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  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
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  /* messages during execution.                                            */
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  /*                                                                       */
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#undef  FT_COMPONENT
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#define FT_COMPONENT  trace_cidgload
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  FT_CALLBACK_DEF( FT_Error )
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  cid_load_glyph( T1_Decoder  decoder,
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                  FT_UInt     glyph_index )
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  {
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    CID_Face       face = (CID_Face)decoder->builder.face;
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    CID_FaceInfo   cid  = &face->cid;
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    FT_Byte*       p;
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    FT_UInt        fd_select;
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    FT_Stream      stream       = face->cid_stream;
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    FT_Error       error        = CID_Err_Ok;
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    FT_Byte*       charstring   = 0;
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    FT_Memory      memory       = face->root.memory;
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    FT_ULong       glyph_length = 0;
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    PSAux_Service  psaux        = (PSAux_Service)face->psaux;
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#ifdef FT_CONFIG_OPTION_INCREMENTAL
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    FT_Incremental_InterfaceRec *inc =
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                                  face->root.internal->incremental_interface;
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#endif
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    FT_TRACE4(( "cid_load_glyph: glyph index %d\n", glyph_index ));
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#ifdef FT_CONFIG_OPTION_INCREMENTAL
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    /* For incremental fonts get the character data using */
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    /* the callback function.                             */
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    if ( inc )
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    {
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      FT_Data  glyph_data;
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      error = inc->funcs->get_glyph_data( inc->object,
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                                          glyph_index, &glyph_data );
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      if ( error )
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        goto Exit;
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      p         = (FT_Byte*)glyph_data.pointer;
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      fd_select = (FT_UInt)cid_get_offset( &p, (FT_Byte)cid->fd_bytes );
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      if ( glyph_data.length != 0 )
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      {
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        glyph_length = glyph_data.length - cid->fd_bytes;
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        (void)FT_ALLOC( charstring, glyph_length );
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        if ( !error )
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          ft_memcpy( charstring, glyph_data.pointer + cid->fd_bytes,
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                     glyph_length );
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      }
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      inc->funcs->free_glyph_data( inc->object, &glyph_data );
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      if ( error )
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        goto Exit;
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    }
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    else
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#endif /* FT_CONFIG_OPTION_INCREMENTAL */
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    /* For ordinary fonts read the CID font dictionary index */
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    /* and charstring offset from the CIDMap.                */
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    {
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      FT_UInt   entry_len = cid->fd_bytes + cid->gd_bytes;
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      FT_ULong  off1;
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      if ( FT_STREAM_SEEK( cid->data_offset + cid->cidmap_offset +
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                           glyph_index * entry_len )               ||
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           FT_FRAME_ENTER( 2 * entry_len )                         )
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        goto Exit;
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      p            = (FT_Byte*)stream->cursor;
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      fd_select    = (FT_UInt) cid_get_offset( &p, (FT_Byte)cid->fd_bytes );
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      off1         = (FT_ULong)cid_get_offset( &p, (FT_Byte)cid->gd_bytes );
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      p           += cid->fd_bytes;
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      glyph_length = cid_get_offset( &p, (FT_Byte)cid->gd_bytes ) - off1;
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      FT_FRAME_EXIT();
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      if ( fd_select >= (FT_UInt)cid->num_dicts )
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      {
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        error = CID_Err_Invalid_Offset;
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        goto Exit;
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      }
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      if ( glyph_length == 0 )
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        goto Exit;
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      if ( FT_ALLOC( charstring, glyph_length ) )
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        goto Exit;
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      if ( FT_STREAM_READ_AT( cid->data_offset + off1,
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                              charstring, glyph_length ) )
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        goto Exit;
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    }
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    /* Now set up the subrs array and parse the charstrings. */
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    {
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      CID_FaceDict  dict;
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      CID_Subrs     cid_subrs = face->subrs + fd_select;
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      FT_Int        cs_offset;
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      /* Set up subrs */
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      decoder->num_subrs = cid_subrs->num_subrs;
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      decoder->subrs     = cid_subrs->code;
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      decoder->subrs_len = 0;
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      /* Set up font matrix */
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      dict                 = cid->font_dicts + fd_select;
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      decoder->font_matrix = dict->font_matrix;
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      decoder->font_offset = dict->font_offset;
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      decoder->lenIV       = dict->private_dict.lenIV;
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      /* Decode the charstring. */
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      /* Adjustment for seed bytes. */
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      cs_offset = ( decoder->lenIV >= 0 ? decoder->lenIV : 0 );
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      /* Decrypt only if lenIV >= 0. */
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      if ( decoder->lenIV >= 0 )
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        psaux->t1_decrypt( charstring, glyph_length, 4330 );
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   159
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      error = decoder->funcs.parse_charstrings(
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                decoder, charstring + cs_offset,
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                (FT_Int)glyph_length - cs_offset );
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   163
    }
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   164
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    FT_FREE( charstring );
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   166
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   167
#ifdef FT_CONFIG_OPTION_INCREMENTAL
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   168
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    /* Incremental fonts can optionally override the metrics. */
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    if ( !error && inc && inc->funcs->get_glyph_metrics )
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    {
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      FT_Incremental_MetricsRec  metrics;
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   173
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   174
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      metrics.bearing_x = FIXED_TO_INT( decoder->builder.left_bearing.x );
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      metrics.bearing_y = 0;
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      metrics.advance   = FIXED_TO_INT( decoder->builder.advance.x );
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      metrics.advance_v = FIXED_TO_INT( decoder->builder.advance.y );
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   179
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      error = inc->funcs->get_glyph_metrics( inc->object,
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                                             glyph_index, FALSE, &metrics );
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   182
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   183
      decoder->builder.left_bearing.x = INT_TO_FIXED( metrics.bearing_x );
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      decoder->builder.advance.x      = INT_TO_FIXED( metrics.advance );
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   185
      decoder->builder.advance.y      = INT_TO_FIXED( metrics.advance_v );
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   186
    }
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   187
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   188
#endif /* FT_CONFIG_OPTION_INCREMENTAL */
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   189
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   190
  Exit:
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   191
    return error;
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   192
  }
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   193
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   194
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   195
#if 0
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   196
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   197
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  /*************************************************************************/
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   199
  /*************************************************************************/
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  /*************************************************************************/
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  /**********                                                      *********/
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  /**********                                                      *********/
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  /**********            COMPUTE THE MAXIMUM ADVANCE WIDTH         *********/
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  /**********                                                      *********/
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  /**********    The following code is in charge of computing      *********/
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  /**********    the maximum advance width of the font.  It        *********/
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  /**********    quickly processes each glyph charstring to        *********/
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  /**********    extract the value from either a `sbw' or `seac'   *********/
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  /**********    operator.                                         *********/
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   210
  /**********                                                      *********/
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   211
  /*************************************************************************/
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   212
  /*************************************************************************/
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   213
  /*************************************************************************/
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   214
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   215
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   216
  FT_LOCAL_DEF( FT_Error )
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   217
  cid_face_compute_max_advance( CID_Face  face,
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   218
                                FT_Int*   max_advance )
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   219
  {
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   220
    FT_Error       error;
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   221
    T1_DecoderRec  decoder;
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   222
    FT_Int         glyph_index;
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   223
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   224
    PSAux_Service  psaux = (PSAux_Service)face->psaux;
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   225
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koda
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   226
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   227
    *max_advance = 0;
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koda
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   228
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   229
    /* Initialize load decoder */
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   230
    error = psaux->t1_decoder_funcs->init( &decoder,
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koda
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   231
                                           (FT_Face)face,
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   232
                                           0, /* size       */
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koda
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   233
                                           0, /* glyph slot */
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koda
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   234
                                           0, /* glyph names! XXX */
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   235
                                           0, /* blend == 0 */
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koda
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   236
                                           0, /* hinting == 0 */
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   237
                                           cid_load_glyph );
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koda
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   238
    if ( error )
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   239
      return error;
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koda
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   240
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koda
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   241
    /* TODO: initialize decoder.len_buildchar and decoder.buildchar */
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koda
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   242
    /*       if we ever support CID-keyed multiple master fonts     */
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koda
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   243
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   244
    decoder.builder.metrics_only = 1;
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koda
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   245
    decoder.builder.load_points  = 0;
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koda
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   246
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   247
    /* for each glyph, parse the glyph charstring and extract */
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koda
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   248
    /* the advance width                                      */
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koda
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   249
    for ( glyph_index = 0; glyph_index < face->root.num_glyphs;
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koda
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   250
          glyph_index++ )
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koda
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   251
    {
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   252
      /* now get load the unscaled outline */
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koda
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   253
      error = cid_load_glyph( &decoder, glyph_index );
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koda
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   254
      /* ignore the error if one occurred - skip to next glyph */
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koda
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   255
    }
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koda
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   256
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   257
    *max_advance = FIXED_TO_INT( decoder.builder.advance.x );
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koda
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   258
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koda
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   259
    psaux->t1_decoder_funcs->done( &decoder );
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koda
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   260
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koda
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   261
    return CID_Err_Ok;
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koda
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diff changeset
   262
  }
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koda
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diff changeset
   263
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koda
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   264
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koda
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   265
#endif /* 0 */
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   266
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koda
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   267
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   268
  FT_LOCAL_DEF( FT_Error )
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   269
  cid_slot_load_glyph( FT_GlyphSlot  cidglyph,      /* CID_GlyphSlot */
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   270
                       FT_Size       cidsize,       /* CID_Size      */
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   271
                       FT_UInt       glyph_index,
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koda
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   272
                       FT_Int32      load_flags )
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koda
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   273
  {
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koda
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   274
    CID_GlyphSlot  glyph = (CID_GlyphSlot)cidglyph;
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koda
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   275
    FT_Error       error;
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   276
    T1_DecoderRec  decoder;
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koda
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   277
    CID_Face       face = (CID_Face)cidglyph->face;
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koda
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   278
    FT_Bool        hinting;
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koda
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   279
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   280
    PSAux_Service  psaux = (PSAux_Service)face->psaux;
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   281
    FT_Matrix      font_matrix;
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koda
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   282
    FT_Vector      font_offset;
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koda
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   283
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koda
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diff changeset
   284
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koda
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   285
    if ( glyph_index >= (FT_UInt)face->root.num_glyphs )
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koda
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   286
    {
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koda
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   287
      error = CID_Err_Invalid_Argument;
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koda
parents:
diff changeset
   288
      goto Exit;
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koda
parents:
diff changeset
   289
    }
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koda
parents:
diff changeset
   290
88f2e05288ba aaand let's add freetype as well while we are at it
koda
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   291
    if ( load_flags & FT_LOAD_NO_RECURSE )
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koda
parents:
diff changeset
   292
      load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING;
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koda
parents:
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   293
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koda
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   294
    glyph->x_scale = cidsize->metrics.x_scale;
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koda
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   295
    glyph->y_scale = cidsize->metrics.y_scale;
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koda
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   296
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koda
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   297
    cidglyph->outline.n_points   = 0;
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koda
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   298
    cidglyph->outline.n_contours = 0;
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koda
parents:
diff changeset
   299
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koda
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   300
    hinting = FT_BOOL( ( load_flags & FT_LOAD_NO_SCALE   ) == 0 &&
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koda
parents:
diff changeset
   301
                       ( load_flags & FT_LOAD_NO_HINTING ) == 0 );
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koda
parents:
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   302
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koda
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   303
    cidglyph->format = FT_GLYPH_FORMAT_OUTLINE;
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koda
parents:
diff changeset
   304
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koda
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   305
    error = psaux->t1_decoder_funcs->init( &decoder,
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koda
parents:
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   306
                                           cidglyph->face,
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koda
parents:
diff changeset
   307
                                           cidsize,
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koda
parents:
diff changeset
   308
                                           cidglyph,
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koda
parents:
diff changeset
   309
                                           0, /* glyph names -- XXX */
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koda
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   310
                                           0, /* blend == 0 */
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koda
parents:
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   311
                                           hinting,
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koda
parents:
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   312
                                           FT_LOAD_TARGET_MODE( load_flags ),
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koda
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   313
                                           cid_load_glyph );
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koda
parents:
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   314
    if ( error )
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koda
parents:
diff changeset
   315
      goto Exit;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   316
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   317
    /* TODO: initialize decoder.len_buildchar and decoder.buildchar */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   318
    /*       if we ever support CID-keyed multiple master fonts     */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   319
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   320
    /* set up the decoder */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   321
    decoder.builder.no_recurse = FT_BOOL(
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   322
      ( ( load_flags & FT_LOAD_NO_RECURSE ) != 0 ) );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   323
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   324
    error = cid_load_glyph( &decoder, glyph_index );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   325
    if ( error )
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   326
      goto Exit;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   327
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   328
    font_matrix = decoder.font_matrix;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   329
    font_offset = decoder.font_offset;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   330
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   331
    /* save new glyph tables */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   332
    psaux->t1_decoder_funcs->done( &decoder );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   333
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   334
    /* now set the metrics -- this is rather simple, as    */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   335
    /* the left side bearing is the xMin, and the top side */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   336
    /* bearing the yMax                                    */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   337
    cidglyph->outline.flags &= FT_OUTLINE_OWNER;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   338
    cidglyph->outline.flags |= FT_OUTLINE_REVERSE_FILL;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   339
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   340
    /* for composite glyphs, return only left side bearing and */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   341
    /* advance width                                           */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   342
    if ( load_flags & FT_LOAD_NO_RECURSE )
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   343
    {
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   344
      FT_Slot_Internal  internal = cidglyph->internal;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   345
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   346
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   347
      cidglyph->metrics.horiBearingX =
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   348
        FIXED_TO_INT( decoder.builder.left_bearing.x );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   349
      cidglyph->metrics.horiAdvance =
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   350
        FIXED_TO_INT( decoder.builder.advance.x );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   351
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   352
      internal->glyph_matrix      = font_matrix;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   353
      internal->glyph_delta       = font_offset;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   354
      internal->glyph_transformed = 1;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   355
    }
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   356
    else
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   357
    {
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   358
      FT_BBox            cbox;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   359
      FT_Glyph_Metrics*  metrics = &cidglyph->metrics;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   360
      FT_Vector          advance;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   361
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   362
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   363
      /* copy the _unscaled_ advance width */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   364
      metrics->horiAdvance =
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   365
        FIXED_TO_INT( decoder.builder.advance.x );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   366
      cidglyph->linearHoriAdvance =
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   367
        FIXED_TO_INT( decoder.builder.advance.x );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   368
      cidglyph->internal->glyph_transformed = 0;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   369
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   370
      /* make up vertical ones */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   371
      metrics->vertAdvance        = ( face->cid.font_bbox.yMax -
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   372
                                      face->cid.font_bbox.yMin ) >> 16;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   373
      cidglyph->linearVertAdvance = metrics->vertAdvance;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   374
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   375
      cidglyph->format            = FT_GLYPH_FORMAT_OUTLINE;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   376
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   377
      if ( cidsize->metrics.y_ppem < 24 )
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   378
        cidglyph->outline.flags |= FT_OUTLINE_HIGH_PRECISION;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   379
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   380
      /* apply the font matrix */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   381
      FT_Outline_Transform( &cidglyph->outline, &font_matrix );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   382
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   383
      FT_Outline_Translate( &cidglyph->outline,
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   384
                            font_offset.x,
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   385
                            font_offset.y );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   386
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   387
      advance.x = metrics->horiAdvance;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   388
      advance.y = 0;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   389
      FT_Vector_Transform( &advance, &font_matrix );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   390
      metrics->horiAdvance = advance.x + font_offset.x;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   391
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   392
      advance.x = 0;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   393
      advance.y = metrics->vertAdvance;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   394
      FT_Vector_Transform( &advance, &font_matrix );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   395
      metrics->vertAdvance = advance.y + font_offset.y;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   396
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   397
      if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 )
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   398
      {
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   399
        /* scale the outline and the metrics */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   400
        FT_Int       n;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   401
        FT_Outline*  cur = decoder.builder.base;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   402
        FT_Vector*   vec = cur->points;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   403
        FT_Fixed     x_scale = glyph->x_scale;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   404
        FT_Fixed     y_scale = glyph->y_scale;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   405
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   406
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   407
        /* First of all, scale the points */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   408
        if ( !hinting || !decoder.builder.hints_funcs )
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   409
          for ( n = cur->n_points; n > 0; n--, vec++ )
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   410
          {
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   411
            vec->x = FT_MulFix( vec->x, x_scale );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   412
            vec->y = FT_MulFix( vec->y, y_scale );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   413
          }
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   414
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   415
        /* Then scale the metrics */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   416
        metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   417
        metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   418
      }
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   419
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   420
      /* compute the other metrics */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   421
      FT_Outline_Get_CBox( &cidglyph->outline, &cbox );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   422
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   423
      metrics->width  = cbox.xMax - cbox.xMin;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   424
      metrics->height = cbox.yMax - cbox.yMin;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   425
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   426
      metrics->horiBearingX = cbox.xMin;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   427
      metrics->horiBearingY = cbox.yMax;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   428
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   429
      if ( load_flags & FT_LOAD_VERTICAL_LAYOUT ) 
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   430
      {
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   431
        /* make up vertical ones */
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   432
        ft_synthesize_vertical_metrics( metrics,
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   433
                                        metrics->vertAdvance );
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   434
      }
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   435
    }
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   436
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   437
  Exit:
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   438
    return error;
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   439
  }
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   440
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   441
88f2e05288ba aaand let's add freetype as well while we are at it
koda
parents:
diff changeset
   442
/* END */