text: /***************************************************************************/
  /*                                                                         */
  /*  cidobjs.c                                                              */
  /*                                                                         */
  /*    CID objects manager (body).                                          */
  /*                                                                         */
  /*  Copyright 1996-2001, 2002, 2003, 2004 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 "cidgload.h"
  #include "cidload.h"
  
  #include FT_SERVICE_POSTSCRIPT_CMAPS_H
  #include FT_INTERNAL_POSTSCRIPT_AUX_H
  #include FT_INTERNAL_POSTSCRIPT_HINTS_H
  
  #include "ciderrs.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_cidobjs
  
  
    /*************************************************************************/
    /*                                                                       */
    /*                            SLOT  FUNCTIONS                            */
    /*                                                                       */
    /*************************************************************************/
  
    FT_LOCAL_DEF( void )
    cid_slot_done( CID_GlyphSlot  slot )
    {
      slot->root.internal->glyph_hints = 0;
    }
  
  
    FT_LOCAL_DEF( FT_Error )
    cid_slot_init( CID_GlyphSlot  slot )
    {
      CID_Face          face;
      PSHinter_Service  pshinter;
  
  
      face     = (CID_Face)slot->root.face;
      pshinter = (PSHinter_Service)face->pshinter;
  
      if ( pshinter )
      {
        FT_Module  module;
  
  
        module = FT_Get_Module( slot->root.face->driver->root.library,
                                "pshinter" );
        if ( module )
        {
          T1_Hints_Funcs  funcs;
  
  
          funcs = pshinter->get_t1_funcs( module );
          slot->root.internal->glyph_hints = (void*)funcs;
        }
      }
  
      return 0;
    }
  
  
    /*************************************************************************/
    /*                                                                       */
    /*                           SIZE  FUNCTIONS                             */
    /*                                                                       */
    /*************************************************************************/
  
  
    static PSH_Globals_Funcs
    cid_size_get_globals_funcs( CID_Size  size )
    {
      CID_Face          face     = (CID_Face)size->root.face;
      PSHinter_Service  pshinter = (PSHinter_Service)face->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 )
    cid_size_done( CID_Size  size )
    {
      if ( size->root.internal )
      {
        PSH_Globals_Funcs  funcs;
  
  
        funcs = cid_size_get_globals_funcs( size );
        if ( funcs )
          funcs->destroy( (PSH_Globals)size->root.internal );
  
        size->root.internal = 0;
      }
    }
  
  
    FT_LOCAL_DEF( FT_Error )
    cid_size_init( CID_Size  size )
    {
      FT_Error           error = 0;
      PSH_Globals_Funcs  funcs = cid_size_get_globals_funcs( size );
  
  
      if ( funcs )
      {
        PSH_Globals   globals;
        CID_Face      face = (CID_Face)size->root.face;
        CID_FaceDict  dict = face->cid.font_dicts + face->root.face_index;
        PS_Private    priv = &dict->private_dict;
  
  
        error = funcs->create( size->root.face->memory, priv, &globals );
        if ( !error )
          size->root.internal = (FT_Size_Internal)(void*)globals;
      }
  
      return error;
    }
  
  
    FT_LOCAL_DEF( FT_Error )
    cid_size_reset( CID_Size  size )
    {
      PSH_Globals_Funcs  funcs = cid_size_get_globals_funcs( size );
      FT_Error           error = 0;
  
  
      if ( funcs )
        error = funcs->set_scale( (PSH_Globals)size->root.internal,
                                   size->root.metrics.x_scale,
                                   size->root.metrics.y_scale,
                                   0, 0 );
      return error;
    }
  
  
    /*************************************************************************/
    /*                                                                       */
    /*                           FACE  FUNCTIONS                             */
    /*                                                                       */
    /*************************************************************************/
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    cid_face_done                                                      */
    /*                                                                       */
    /* <Description>                                                         */
    /*    Finalizes a given face object.                                     */
    /*                                                                       */
    /* <Input>                                                               */
    /*    face :: A pointer to the face object to destroy.                   */
    /*                                                                       */
    FT_LOCAL_DEF( void )
    cid_face_done( CID_Face  face )
    {
      FT_Memory  memory;
  
  
      if ( face )
      {
        CID_FaceInfo  cid  = &face->cid;
        PS_FontInfo   info = &cid->font_info;
  
  
        memory = face->root.memory;
  
        /* release subrs */
        if ( face->subrs )
        {
          FT_Int  n;
  
  
          for ( n = 0; n < cid->num_dicts; n++ )
          {
            CID_Subrs  subr = face->subrs + n;
  
  
            if ( subr->code )
            {
              FT_FREE( subr->code[0] );
              FT_FREE( subr->code );
            }
          }
  
          FT_FREE( face->subrs );
        }
  
        /* release FontInfo strings */
        FT_FREE( info->version );
        FT_FREE( info->notice );
        FT_FREE( info->full_name );
        FT_FREE( info->family_name );
        FT_FREE( info->weight );
  
        /* release font dictionaries */
        FT_FREE( cid->font_dicts );
        cid->num_dicts = 0;
  
        /* release other strings */
        FT_FREE( cid->cid_font_name );
        FT_FREE( cid->registry );
        FT_FREE( cid->ordering );
  
        face->root.family_name = 0;
        face->root.style_name  = 0;
  
        FT_FREE( face->binary_data );
        FT_FREE( face->cid_stream );
      }
    }
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    cid_face_init                                                      */
    /*                                                                       */
    /* <Description>                                                         */
    /*    Initializes a given CID face object.                               */
    /*                                                                       */
    /* <Input>                                                               */
    /*    stream     :: The source font stream.                              */
    /*                                                                       */
    /*    face_index :: The index of the font face in the resource.          */
    /*                                                                       */
    /*    num_params :: Number of additional generic parameters.  Ignored.   */
    /*                                                                       */
    /*    params     :: Additional generic parameters.  Ignored.             */
    /*                                                                       */
    /* <InOut>                                                               */
    /*    face       :: The newly built face object.                         */
    /*                                                                       */
    /* <Return>                                                              */
    /*    FreeType error code.  0 means success.                             */
    /*                                                                       */
    FT_LOCAL_DEF( FT_Error )
    cid_face_init( FT_Stream      stream,
                   CID_Face       face,
                   FT_Int         face_index,
                   FT_Int         num_params,
                   FT_Parameter*  params )
    {
      FT_Error            error;
      FT_Service_PsCMaps  psnames;
      PSAux_Service       psaux;
      PSHinter_Service    pshinter;
  
      FT_UNUSED( num_params );
      FT_UNUSED( params );
      FT_UNUSED( stream );
  
  
      face->root.num_faces = 1;
  
      FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
  
      psaux = (PSAux_Service)face->psaux;
      if ( !psaux )
      {
        psaux = (PSAux_Service)FT_Get_Module_Interface(
                  FT_FACE_LIBRARY( face ), "psaux" );
  
        face->psaux = psaux;
      }
  
      pshinter = (PSHinter_Service)face->pshinter;
      if ( !pshinter )
      {
        pshinter = (PSHinter_Service)FT_Get_Module_Interface(
                     FT_FACE_LIBRARY( face ), "pshinter" );
  
        face->pshinter = pshinter;
      }
  
      /* open the tokenizer; this will also check the font format */
      if ( FT_STREAM_SEEK( 0 ) )
        goto Exit;
  
      error = cid_face_open( face, face_index );
      if ( error )
        goto Exit;
  
      /* if we just wanted to check the format, leave successfully now */
      if ( face_index < 0 )
        goto Exit;
  
      /* check the face index */
      if ( face_index != 0 )
      {
        FT_ERROR(( "cid_face_init: invalid face index\n" ));
        error = CID_Err_Invalid_Argument;
        goto Exit;
      }
  
      /* now load the font program into the face object */
  
      /* initialize the face object fields */
  
      /* set up root face fields */
      {
        FT_Face       root = (FT_Face)&face->root;
        CID_FaceInfo  cid  = &face->cid;
        PS_FontInfo   info = &cid->font_info;
  
  
        root->num_glyphs   = cid->cid_count;
        root->num_charmaps = 0;
  
        root->face_index = face_index;
        root->face_flags = FT_FACE_FLAG_SCALABLE;
  
        root->face_flags |= FT_FACE_FLAG_HORIZONTAL;
  
        if ( info->is_fixed_pitch )
          root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
  
        /* XXX: TODO: add kerning with .afm support */
  
        /* get style name -- be careful, some broken fonts only */
        /* have a /FontName dictionary entry!                   */
        root->family_name = info->family_name;
        /* assume "Regular" style if we don't know better */
        root->style_name = (char *)"Regular";
        if ( root->family_name )
        {
          char*  full   = info->full_name;
          char*  family = root->family_name;
  
  
          if ( full )
          {
            while ( *full )
            {
              if ( *full == *family )
              {
                family++;
                full++;
              }
              else
              {
                if ( *full == ' ' || *full == '-' )
                  full++;
                else if ( *family == ' ' || *family == '-' )
                  family++;
                else
                {
                  if ( !*family )
                    root->style_name = full;
                  break;
                }
              }
            }
          }
        }
        else
        {
          /* do we have a `/FontName'? */
          if ( cid->cid_font_name )
            root->family_name = cid->cid_font_name;
        }
  
        /* compute style flags */
        root->style_flags = 0;
        if ( info->italic_angle )
          root->style_flags |= FT_STYLE_FLAG_ITALIC;
        if ( info->weight )
        {
          if ( !ft_strcmp( info->weight, "Bold"  ) ||
               !ft_strcmp( info->weight, "Black" ) )
            root->style_flags |= FT_STYLE_FLAG_BOLD;
        }
  
        /* no embedded bitmap support */
        root->num_fixed_sizes = 0;
        root->available_sizes = 0;
  
        root->bbox.xMin =   cid->font_bbox.xMin             >> 16;
        root->bbox.yMin =   cid->font_bbox.yMin             >> 16;
        root->bbox.xMax = ( cid->font_bbox.xMax + 0xFFFFU ) >> 16;
        root->bbox.yMax = ( cid->font_bbox.yMax + 0xFFFFU ) >> 16;
  
        if ( !root->units_per_EM )
          root->units_per_EM = 1000;
  
        root->ascender  = (FT_Short)( root->bbox.yMax );
        root->descender = (FT_Short)( root->bbox.yMin );
        root->height    = (FT_Short)(
          ( ( root->ascender - root->descender ) * 12 ) / 10 );
  
        root->underline_position  = (FT_Short)info->underline_position;
        root->underline_thickness = (FT_Short)info->underline_thickness;
  
        root->internal->max_points   = 0;
        root->internal->max_contours = 0;
      }
  
    Exit:
      return error;
    }
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    cid_driver_init                                                    */
    /*                                                                       */
    /* <Description>                                                         */
    /*    Initializes a given CID driver object.                             */
    /*                                                                       */
    /* <Input>                                                               */
    /*    driver :: A handle to the target driver object.                    */
    /*                                                                       */
    /* <Return>                                                              */
    /*    FreeType error code.  0 means success.                             */
    /*                                                                       */
    FT_LOCAL_DEF( FT_Error )
    cid_driver_init( CID_Driver  driver )
    {
      FT_UNUSED( driver );
  
      return CID_Err_Ok;
    }
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    cid_driver_done                                                    */
    /*                                                                       */
    /* <Description>                                                         */
    /*    Finalizes a given CID driver.                                      */
    /*                                                                       */
    /* <Input>                                                               */
    /*    driver :: A handle to the target CID driver.                       */
    /*                                                                       */
    FT_LOCAL_DEF( void )
    cid_driver_done( CID_Driver  driver )
    {
      FT_UNUSED( driver );
    }
  
  
  /* END */
  