thirdparty/freetype-2.3.12/src/cid/cidriver.c

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  cidriver.c                                                             */
   4 /*                                                                         */
   5 /*    CID driver interface (body).                                         */
   6 /*                                                                         */
   7 /*  Copyright 1996-2001, 2002, 2003, 2004, 2006, 2008, 2009 by             */
   8 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
   9 /*                                                                         */
  10 /*  This file is part of the FreeType project, and may only be used,       */
  11 /*  modified, and distributed under the terms of the FreeType project      */
  12 /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
  13 /*  this file you indicate that you have read the license and              */
  14 /*  understand and accept it fully.                                        */
  15 /*                                                                         */
  16 /***************************************************************************/
  17
  18
  19 #include <ft2build.h>
  20 #include "cidriver.h"
  21 #include "cidgload.h"
  22 #include FT_INTERNAL_DEBUG_H
  23
  24 #include "ciderrs.h"
  25
  26 #include FT_SERVICE_POSTSCRIPT_NAME_H
  27 #include FT_SERVICE_XFREE86_NAME_H
  28 #include FT_SERVICE_POSTSCRIPT_INFO_H
  29 #include FT_SERVICE_CID_H
  30
  31
  32   /*************************************************************************/
  33   /*                                                                       */
  34   /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
  35   /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
  36   /* messages during execution.                                            */
  37   /*                                                                       */
  38 #undef  FT_COMPONENT
  39 #define FT_COMPONENT  trace_ciddriver
  40
  41
  42   /*
  43    *  POSTSCRIPT NAME SERVICE
  44    *
  45    */
  46
  47   static const char*
  48   cid_get_postscript_name( CID_Face  face )
  49   {
  50     const char*  result = face->cid.cid_font_name;
  51
  52
  53     if ( result && result[0] == '/' )
  54       result++;
  55
  56     return result;
  57   }
  58
  59
  60   static const FT_Service_PsFontNameRec  cid_service_ps_name =
  61   {
  62     (FT_PsName_GetFunc) cid_get_postscript_name
  63   };
  64
  65
  66   /*
  67    *  POSTSCRIPT INFO SERVICE
  68    *
  69    */
  70
  71   static FT_Error
  72   cid_ps_get_font_info( FT_Face          face,
  73                         PS_FontInfoRec*  afont_info )
  74   {
  75     *afont_info = ((CID_Face)face)->cid.font_info;
  76
  77     return CID_Err_Ok;
  78   }
  79
  80   static FT_Error
  81   cid_ps_get_font_extra( FT_Face          face,
  82                         PS_FontExtraRec*  afont_extra )
  83   {
  84     *afont_extra = ((CID_Face)face)->font_extra;
  85
  86     return CID_Err_Ok;
  87   }
  88
  89   static const FT_Service_PsInfoRec  cid_service_ps_info =
  90   {
  91     (PS_GetFontInfoFunc)   cid_ps_get_font_info,
  92     (PS_GetFontExtraFunc)  cid_ps_get_font_extra,
  93     (PS_HasGlyphNamesFunc) NULL,        /* unsupported with CID fonts */
  94     (PS_GetFontPrivateFunc)NULL         /* unsupported                */
  95   };
  96
  97
  98   /*
  99    *  CID INFO SERVICE
 100    *
 101    */
 102   static FT_Error
 103   cid_get_ros( CID_Face      face,
 104                const char*  *registry,
 105                const char*  *ordering,
 106                FT_Int       *supplement )
 107   {
 108     CID_FaceInfo  cid = &face->cid;
 109
 110
 111     if ( registry )
 112       *registry = cid->registry;
 113
 114     if ( ordering )
 115       *ordering = cid->ordering;
 116
 117     if ( supplement )
 118       *supplement = cid->supplement;
 119
 120     return CID_Err_Ok;
 121   }
 122
 123
 124   static FT_Error
 125   cid_get_is_cid( CID_Face  face,
 126                   FT_Bool  *is_cid )
 127   {
 128     FT_Error  error = CID_Err_Ok;
 129     FT_UNUSED( face );
 130
 131
 132     if ( is_cid )
 133       *is_cid = 1; /* cid driver is only used for CID keyed fonts */
 134
 135     return error;
 136   }
 137
 138
 139   static FT_Error
 140   cid_get_cid_from_glyph_index( CID_Face  face,
 141                                 FT_UInt   glyph_index,
 142                                 FT_UInt  *cid )
 143   {
 144     FT_Error  error = CID_Err_Ok;
 145     FT_UNUSED( face );
 146
 147
 148     if ( cid )
 149       *cid = glyph_index; /* identity mapping */
 150
 151     return error;
 152   }
 153
 154
 155   static const FT_Service_CIDRec  cid_service_cid_info =
 156   {
 157      (FT_CID_GetRegistryOrderingSupplementFunc)cid_get_ros,
 158      (FT_CID_GetIsInternallyCIDKeyedFunc)      cid_get_is_cid,
 159      (FT_CID_GetCIDFromGlyphIndexFunc)         cid_get_cid_from_glyph_index
 160   };
 161
 162
 163   /*
 164    *  SERVICE LIST
 165    *
 166    */
 167
 168   static const FT_ServiceDescRec  cid_services[] =
 169   {
 170     { FT_SERVICE_ID_XF86_NAME,            FT_XF86_FORMAT_CID },
 171     { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cid_service_ps_name },
 172     { FT_SERVICE_ID_POSTSCRIPT_INFO,      &cid_service_ps_info },
 173     { FT_SERVICE_ID_CID,                  &cid_service_cid_info },
 174     { NULL, NULL }
 175   };
 176
 177
 178   FT_CALLBACK_DEF( FT_Module_Interface )
 179   cid_get_interface( FT_Module    module,
 180                      const char*  cid_interface )
 181   {
 182     FT_UNUSED( module );
 183
 184     return ft_service_list_lookup( cid_services, cid_interface );
 185   }
 186
 187
 188
 189   FT_CALLBACK_TABLE_DEF
 190   const FT_Driver_ClassRec  t1cid_driver_class =
 191   {
 192     /* first of all, the FT_Module_Class fields */
 193     {
 194       FT_MODULE_FONT_DRIVER       |
 195       FT_MODULE_DRIVER_SCALABLE   |
 196       FT_MODULE_DRIVER_HAS_HINTER,
 197
 198       sizeof( FT_DriverRec ),
 199       "t1cid",   /* module name           */
 200       0x10000L,  /* version 1.0 of driver */
 201       0x20000L,  /* requires FreeType 2.0 */
 202
 203       0,
 204
 205       cid_driver_init,
 206       cid_driver_done,
 207       cid_get_interface
 208     },
 209
 210     /* then the other font drivers fields */
 211     sizeof( CID_FaceRec ),
 212     sizeof( CID_SizeRec ),
 213     sizeof( CID_GlyphSlotRec ),
 214
 215     cid_face_init,
 216     cid_face_done,
 217
 218     cid_size_init,
 219     cid_size_done,
 220     cid_slot_init,
 221     cid_slot_done,
 222
 223 #ifdef FT_CONFIG_OPTION_OLD_INTERNALS
 224     ft_stub_set_char_sizes,
 225     ft_stub_set_pixel_sizes,
 226 #endif
 227
 228     cid_slot_load_glyph,
 229
 230     0,                      /* FT_Face_GetKerningFunc  */
 231     0,                      /* FT_Face_AttachFunc      */
 232
 233     0,                      /* FT_Face_GetAdvancesFunc */
 234
 235     cid_size_request,
 236     0                       /* FT_Size_SelectFunc      */
 237   };
 238
 239
 240 /* END */