src/freetype/sfnt/sfdriver.c

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  sfdriver.c                                                             */
   4 /*                                                                         */
   5 /*    High-level SFNT driver interface (body).                             */
   6 /*                                                                         */
   7 /*  Copyright 1996-2000 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 <freetype/internal/sfnt.h>
  20 #include <freetype/internal/ftobjs.h>
  21
  22
  23 #ifdef FT_FLAT_COMPILE
  24
  25 #include "sfdriver.h"
  26 #include "ttload.h"
  27 #include "ttsbit.h"
  28 #include "ttpost.h"
  29 #include "ttcmap.h"
  30 #include "sfobjs.h"
  31
  32 #else
  33
  34 #include <sfnt/sfdriver.h>
  35 #include <sfnt/ttload.h>
  36 #include <sfnt/ttsbit.h>
  37 #include <sfnt/ttpost.h>
  38 #include <sfnt/ttcmap.h>
  39 #include <sfnt/sfobjs.h>
  40
  41 #endif
  42
  43
  44 #include <string.h>     /* for strcmp() */
  45
  46
  47   static
  48   void*  get_sfnt_table( TT_Face      face,
  49                          FT_Sfnt_Tag  tag )
  50   {
  51     void*  table;
  52
  53
  54     switch ( tag )
  55     {
  56     case ft_sfnt_head:
  57       table = &face->header;
  58       break;
  59
  60     case ft_sfnt_hhea:
  61       table = &face->horizontal;
  62       break;
  63
  64     case ft_sfnt_vhea:
  65       table = face->vertical_info ? &face->vertical : 0;
  66       break;
  67
  68     case ft_sfnt_os2:
  69       table = face->os2.version == 0xFFFF ? 0 : &face->os2;
  70       break;
  71
  72     case ft_sfnt_post:
  73       table = &face->postscript;
  74       break;
  75
  76     case ft_sfnt_maxp:
  77       table = &face->max_profile;
  78       break;
  79
  80     case ft_sfnt_pclt:
  81       table = face->pclt.Version ? &face->pclt : 0;
  82       break;
  83
  84     default:
  85       table = 0;
  86     }
  87
  88     return table;
  89   }
  90
  91
  92 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
  93
  94
  95   static
  96   FT_Error  get_sfnt_glyph_name( TT_Face     face,
  97                                  FT_UInt     glyph_index,
  98                                  FT_Pointer  buffer,
  99                                  FT_UInt     buffer_max )
 100   {
 101     FT_String*  gname;
 102     FT_Error    error;
 103
 104
 105     error = TT_Get_PS_Name( face, glyph_index, &gname );
 106     if ( !error && buffer_max > 0 )
 107     {
 108       FT_UInt  len = strlen( gname );
 109
 110
 111       if ( len >= buffer_max )
 112         len = buffer_max - 1;
 113
 114       MEM_Copy( buffer, gname, len );
 115       ((FT_Byte*)buffer)[len] = 0;
 116     }
 117
 118     return error;
 119   }
 120
 121
 122 #endif /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES */
 123
 124
 125   static
 126   FT_Module_Interface  SFNT_Get_Interface( FT_Module    module,
 127                                            const char*  interface )
 128   {
 129     FT_UNUSED( module );
 130
 131     if ( strcmp( interface, "get_sfnt" ) == 0 )
 132       return (FT_Module_Interface)get_sfnt_table;
 133
 134 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
 135     if ( strcmp( interface, "glyph_name" ) == 0 )
 136       return (FT_Module_Interface)get_sfnt_glyph_name;
 137 #endif
 138     return 0;
 139   }
 140
 141
 142   static
 143   const SFNT_Interface  sfnt_interface =
 144   {
 145     TT_Goto_Table,
 146
 147     SFNT_Init_Face,
 148     SFNT_Load_Face,
 149     SFNT_Done_Face,
 150     SFNT_Get_Interface,
 151
 152     TT_Load_Any,
 153     TT_Load_SFNT_Header,
 154     TT_Load_Directory,
 155
 156     TT_Load_Header,
 157     TT_Load_Metrics_Header,
 158     TT_Load_CMap,
 159     TT_Load_MaxProfile,
 160     TT_Load_OS2,
 161     TT_Load_PostScript,
 162
 163     TT_Load_Names,
 164     TT_Free_Names,
 165
 166     TT_Load_Hdmx,
 167     TT_Free_Hdmx,
 168
 169     TT_Load_Kern,
 170     TT_Load_Gasp,
 171     TT_Load_PCLT,
 172
 173 #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
 174
 175     /* see `ttsbit.h' */
 176     TT_Load_SBit_Strikes,
 177     TT_Load_SBit_Image,
 178     TT_Free_SBit_Strikes,
 179
 180 #else /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
 181
 182     0,
 183     0,
 184     0,
 185
 186 #endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
 187
 188 #ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
 189
 190     /* see `ttpost.h' */
 191     TT_Get_PS_Name,
 192     TT_Free_Post_Names,
 193
 194 #else /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES */
 195
 196     0,
 197     0,
 198
 199 #endif /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES */
 200
 201     /* see `ttcmap.h' */
 202     TT_CharMap_Load,
 203     TT_CharMap_Free,
 204   };
 205
 206
 207   const
 208   FT_Module_Class  sfnt_module_class =
 209   {
 210     0,  /* not a font driver or renderer */
 211     sizeof( FT_ModuleRec ),
 212
 213     "sfnt",     /* driver name                            */
 214     0x10000L,   /* driver version 1.0                     */
 215     0x20000L,   /* driver requires FreeType 2.0 or higher */
 216
 217     (const void*)&sfnt_interface,  /* module specific interface */
 218
 219     (FT_Module_Constructor)0,
 220     (FT_Module_Destructor) 0,
 221     (FT_Module_Requester)  SFNT_Get_Interface
 222   };
 223
 224
 225 /* END */