kc3-lang/freetype/src/type42/t42drivr.c

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• Hash : cda2d957
  Author :
  Date : 2006-02-16T22:45:31
  

  * builds/amiga/src/base/ftsystem.c, devel/ftoption.h include/freetype/ftcache.h, include/freetype/ftoutln.h, include/freetype/cache/ftccache.h, include/freetype/cache/ftccmap.h, include/freetype/config/ftoption.h, include/freetype/internal/ftcalc.h, include/freetype/internal/ftdriver.h, include/freetype/internal/ftmemory.h, include/freetype/internal/ftobjs.h, include/freetype/internal/ftrfork.h, include/freetype/internal/psaux.h, include/freetype/internal/sfnt.h, include/freetype/internal/t1types.h, include/freetype/internal/tttypes.h, src/base/ftcalc.c, src/base/ftdbgmem.c, src/base/ftobjs.c, src/base/ftsystem.c, src/base/ftutil.c, src/bdf/bdfdrivr.c, src/cache/ftccache.c, src/cache/ftccback.h, src/cache/ftccmap.c, src/cache/ftcmanag.c, src/cff/cffdrivr.c, src/cid/cidriver.c, src/pcf/pcfdrivr.c, src/pfr/pfrdrivr.c, src/psaux/psauxmod.c, src/sfnt/sfdriver.c, src/truetype/ttdriver.c, src/type1/t1driver.c, src/type1/t1objs.c, src/type42/t42drivr.c, src/winfonts/winfnt.c: massive changes to the internals to respect the internal object layouts and exported functions of FreeType 2.1.7. Note that the cache sub-system cannot be fully retrofitted, unfortunately.

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• src/type42/t42drivr.c

• /***************************************************************************/
  /*                                                                         */
  /*  t42drivr.c                                                             */
  /*                                                                         */
  /*    High-level Type 42 driver interface (body).                          */
  /*                                                                         */
  /*  Copyright 2002, 2003, 2004, 2006 by Roberto Alameda.                   */
  /*                                                                         */
  /*  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.                                        */
  /*                                                                         */
  /***************************************************************************/
  
  
    /*************************************************************************/
    /*                                                                       */
    /* This driver implements Type42 fonts as described in the               */
    /* Technical Note #5012 from Adobe, with these limitations:              */
    /*                                                                       */
    /* 1) CID Fonts are not currently supported.                             */
    /* 2) Incremental fonts making use of the GlyphDirectory keyword         */
    /*    will be loaded, but the rendering will be using the TrueType       */
    /*    tables.                                                            */
    /* 3) As for Type1 fonts, CDevProc is not supported.                     */
    /* 4) The Metrics dictionary is not supported.                           */
    /* 5) AFM metrics are not supported.                                     */
    /*                                                                       */
    /* In other words, this driver supports Type42 fonts derived from        */
    /* TrueType fonts in a non-CID manner, as done by usual conversion       */
    /* programs.                                                             */
    /*                                                                       */
    /*************************************************************************/
  
  
  #include "t42drivr.h"
  #include "t42objs.h"
  #include "t42error.h"
  #include FT_INTERNAL_DEBUG_H
  
  #include FT_SERVICE_XFREE86_NAME_H
  #include FT_SERVICE_GLYPH_DICT_H
  #include FT_SERVICE_POSTSCRIPT_NAME_H
  #include FT_SERVICE_POSTSCRIPT_INFO_H
  
  #undef  FT_COMPONENT
  #define FT_COMPONENT  trace_t42
  
  
   /*
    *
    *  GLYPH DICT SERVICE
    *
    */
  
    static FT_Error
    t42_get_glyph_name( T42_Face    face,
                        FT_UInt     glyph_index,
                        FT_Pointer  buffer,
                        FT_UInt     buffer_max )
    {
      FT_String*  gname;
  
  
      gname = face->type1.glyph_names[glyph_index];
  
      if ( buffer_max > 0 )
      {
        FT_UInt  len = (FT_UInt)( ft_strlen( gname ) );
  
  
        if ( len >= buffer_max )
          len = buffer_max - 1;
  
        FT_MEM_COPY( buffer, gname, len );
        ((FT_Byte*)buffer)[len] = 0;
      }
  
      return T42_Err_Ok;
    }
  
  
    static FT_UInt
    t42_get_name_index( T42_Face    face,
                        FT_String*  glyph_name )
    {
      FT_Int      i;
      FT_String*  gname;
  
  
      for ( i = 0; i < face->type1.num_glyphs; i++ )
      {
        gname = face->type1.glyph_names[i];
  
        if ( !ft_strcmp( glyph_name, gname ) )
          return (FT_UInt)ft_atol( (const char *)face->type1.charstrings[i] );
      }
  
      return 0;
    }
  
  
    static const FT_Service_GlyphDictRec  t42_service_glyph_dict =
    {
      (FT_GlyphDict_GetNameFunc)  t42_get_glyph_name,
      (FT_GlyphDict_NameIndexFunc)t42_get_name_index
    };
  
  
   /*
    *
    *  POSTSCRIPT NAME SERVICE
    *
    */
  
    static const char*
    t42_get_ps_font_name( T42_Face  face )
    {
      return (const char*)face->type1.font_name;
    }
  
  
    static const FT_Service_PsFontNameRec  t42_service_ps_font_name =
    {
      (FT_PsName_GetFunc)t42_get_ps_font_name
    };
  
  
   /*
    *
    *  POSTSCRIPT INFO SERVICE
    *
    */
  
    static FT_Error
    t42_ps_get_font_info( FT_Face          face,
                          PS_FontInfoRec*  afont_info )
    {
      *afont_info = ((T42_Face)face)->type1.font_info;
      return T42_Err_Ok;
    }
  
  
    static FT_Int
    t42_ps_has_glyph_names( FT_Face  face )
    {
      FT_UNUSED( face );
      return 1;
    }
  
  
    static FT_Error
    t42_ps_get_font_private( FT_Face         face,
                             PS_PrivateRec*  afont_private )
    {
      *afont_private = ((T42_Face)face)->type1.private_dict;
      return T42_Err_Ok;
    }
  
  
    static const FT_Service_PsInfoRec  t42_service_ps_info =
    {
      (PS_GetFontInfoFunc)   t42_ps_get_font_info,
      (PS_HasGlyphNamesFunc) t42_ps_has_glyph_names,
      (PS_GetFontPrivateFunc)t42_ps_get_font_private
    };
  
  
   /*
    *
    *  SERVICE LIST
    *
    */
  
    static const FT_ServiceDescRec  t42_services[] =
    {
      { FT_SERVICE_ID_GLYPH_DICT,           &t42_service_glyph_dict },
      { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t42_service_ps_font_name },
      { FT_SERVICE_ID_POSTSCRIPT_INFO,      &t42_service_ps_info },
      { FT_SERVICE_ID_XF86_NAME,            FT_XF86_FORMAT_TYPE_42 },
      { NULL, NULL }
    };
  
  
    static FT_Module_Interface
    T42_Get_Interface( FT_Driver         driver,
                       const FT_String*  t42_interface )
    {
      FT_UNUSED( driver );
  
      return ft_service_list_lookup( t42_services, t42_interface );
    }
  
  
    const FT_Driver_ClassRec  t42_driver_class =
    {
      {
        FT_MODULE_FONT_DRIVER       |
        FT_MODULE_DRIVER_SCALABLE   |
  #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
        FT_MODULE_DRIVER_HAS_HINTER,
  #else
        0,
  #endif
  
        sizeof ( T42_DriverRec ),
  
        "type42",
        0x10000L,
        0x20000L,
  
        0,    /* format interface */
  
        (FT_Module_Constructor)T42_Driver_Init,
        (FT_Module_Destructor) T42_Driver_Done,
        (FT_Module_Requester)  T42_Get_Interface,
      },
  
      sizeof ( T42_FaceRec ),
      sizeof ( T42_SizeRec ),
      sizeof ( T42_GlyphSlotRec ),
  
      (FT_Face_InitFunc)        T42_Face_Init,
      (FT_Face_DoneFunc)        T42_Face_Done,
      (FT_Size_InitFunc)        T42_Size_Init,
      (FT_Size_DoneFunc)        T42_Size_Done,
      (FT_Slot_InitFunc)        T42_GlyphSlot_Init,
      (FT_Slot_DoneFunc)        T42_GlyphSlot_Done,
  
  #ifdef FT_CONFIG_OPTION_OLD_INTERNALS
      ft_stub_set_char_sizes,
      ft_stub_set_pixel_sizes,
  #endif
      (FT_Slot_LoadFunc)        T42_GlyphSlot_Load,
  
      (FT_Face_GetKerningFunc)  0,
      (FT_Face_AttachFunc)      0,
  
      (FT_Face_GetAdvancesFunc) 0,
      (FT_Size_RequestFunc)     T42_Size_Request,
      (FT_Size_SelectFunc)      T42_Size_Select
    };
  
  
  /* END */
  

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