kc3-lang/freetype/src/cid/cidriver.c

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• Hash : 210d6189
  Author :
  Date : 2008-04-01T05:55:48
  

  Fix support for subsetted CID-keyed CFFs. * include/freetype/freetype.h (FT_FACE_FLAG_CID_KEYED, FT_IS_CID_KEYED): New macros. * src/cff/cffobjs.c (cff_face_init): Set number of glyphs to the maximum CID value in CID-keyed CFFs. Handle FT_FACE_FLAG_CID_KEYED flag. * docs/CHANGES: Document it. Fix CFF font matrix calculation and improve precision. * src/cff/cffparse.c (cff_parse_real): Increase precision if integer part is zero. (cff_parse_font_matrix): Simplify computation of `units_per_em'; this prevents overflow also. Support FT_Get_CID_Registry_Ordering_Supplement for PS CID fonts. * src/cid/cidriver.c: Include FT_SERVICE_CID_H. (cid_get_ros): New function. (cid_service_cid_info): New service structure. (cid_services): Register it.

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• src/cid/cidriver.c

• /***************************************************************************/
  /*                                                                         */
  /*  cidriver.c                                                             */
  /*                                                                         */
  /*    CID driver interface (body).                                         */
  /*                                                                         */
  /*  Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008 by                   */
  /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  /*                                                                         */
  /*  This file is part of the FreeType project, and may only be used,       */
  /*  modified, and distributed under the terms of the FreeType project      */
  /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
  /*  this file you indicate that you have read the license and              */
  /*  understand and accept it fully.                                        */
  /*                                                                         */
  /***************************************************************************/
  
  
  #include <ft2build.h>
  #include "cidriver.h"
  #include "cidgload.h"
  #include FT_INTERNAL_DEBUG_H
  #include FT_INTERNAL_STREAM_H
  
  #include "ciderrs.h"
  
  #include FT_SERVICE_POSTSCRIPT_NAME_H
  #include FT_SERVICE_XFREE86_NAME_H
  #include FT_SERVICE_POSTSCRIPT_INFO_H
  #include FT_SERVICE_CID_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_ciddriver
  
  
    /*
     *  POSTSCRIPT NAME SERVICE
     *
     */
  
    static const char*
    cid_get_postscript_name( CID_Face  face )
    {
      const char*  result = face->cid.cid_font_name;
  
  
      if ( result && result[0] == '/' )
        result++;
  
      return result;
    }
  
  
    static const FT_Service_PsFontNameRec  cid_service_ps_name =
    {
      (FT_PsName_GetFunc) cid_get_postscript_name
    };
  
  
    /*
     *  POSTSCRIPT INFO SERVICE
     *
     */
  
    static FT_Error
    cid_ps_get_font_info( FT_Face          face,
                          PS_FontInfoRec*  afont_info )
    {
      *afont_info = ((CID_Face)face)->cid.font_info;
      return 0;
    }
  
  
    static const FT_Service_PsInfoRec  cid_service_ps_info =
    {
      (PS_GetFontInfoFunc)   cid_ps_get_font_info,
      (PS_HasGlyphNamesFunc) NULL,        /* unsupported with CID fonts */
      (PS_GetFontPrivateFunc)NULL         /* unsupported                */
    };
  
  
    /*
     *  CID INFO SERVICE
     *
     */
    static FT_Error
    cid_get_ros( CID_Face      face,
                 const char*  *registry,
                 const char*  *ordering,
                 FT_Int       *supplement )
    {
      CID_FaceInfo  cid = &face->cid;
  
  
      if ( registry )
        *registry = cid->registry;
        
      if ( ordering )
        *ordering = cid->ordering;
  
      if ( supplement )
        *supplement = cid->supplement;
        
      return CID_Err_Ok;
    }
  
  
    static const FT_Service_CIDRec  cid_service_cid_info =
    {
      (FT_CID_GetRegistryOrderingSupplementFunc)cid_get_ros
    };
  
  
    /*
     *  SERVICE LIST
     *
     */
  
    static const FT_ServiceDescRec  cid_services[] =
    {
      { FT_SERVICE_ID_XF86_NAME,            FT_XF86_FORMAT_CID },
      { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cid_service_ps_name },
      { FT_SERVICE_ID_POSTSCRIPT_INFO,      &cid_service_ps_info },
      { FT_SERVICE_ID_CID,                  &cid_service_cid_info },
      { NULL, NULL }
    };
  
  
    FT_CALLBACK_DEF( FT_Module_Interface )
    cid_get_interface( FT_Module    module,
                       const char*  cid_interface )
    {
      FT_UNUSED( module );
  
      return ft_service_list_lookup( cid_services, cid_interface );
    }
  
  
  
    FT_CALLBACK_TABLE_DEF
    const FT_Driver_ClassRec  t1cid_driver_class =
    {
      /* first of all, the FT_Module_Class fields */
      {
        FT_MODULE_FONT_DRIVER       |
        FT_MODULE_DRIVER_SCALABLE   |
        FT_MODULE_DRIVER_HAS_HINTER,
  
        sizeof( FT_DriverRec ),
        "t1cid",   /* module name           */
        0x10000L,  /* version 1.0 of driver */
        0x20000L,  /* requires FreeType 2.0 */
  
        0,
  
        cid_driver_init,
        cid_driver_done,
        cid_get_interface
      },
  
      /* then the other font drivers fields */
      sizeof( CID_FaceRec ),
      sizeof( CID_SizeRec ),
      sizeof( CID_GlyphSlotRec ),
  
      cid_face_init,
      cid_face_done,
  
      cid_size_init,
      cid_size_done,
      cid_slot_init,
      cid_slot_done,
  
  #ifdef FT_CONFIG_OPTION_OLD_INTERNALS
      ft_stub_set_char_sizes,
      ft_stub_set_pixel_sizes,
  #endif
  
      cid_slot_load_glyph,
  
      0,                      /* FT_Face_GetKerningFunc  */
      0,                      /* FT_Face_AttachFunc      */
  
      0,                      /* FT_Face_GetAdvancesFunc */
  
      cid_size_request,
      0                       /* FT_Size_SelectFunc      */
    };
  
  
  /* END */
  

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