src/base/ftgxval.c

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  ftgxval.c                                                              */
   4 /*                                                                         */
   5 /*    FreeType API for validating TrueTyepGX/AAT tables (body).            */
   6 /*                                                                         */
   7 /*  Copyright 2004, 2005, 2006, 2010 by                                    */
   8 /*  Masatake YAMATO, Redhat K.K,                                           */
   9 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  10 /*                                                                         */
  11 /*  This file is part of the FreeType project, and may only be used,       */
  12 /*  modified, and distributed under the terms of the FreeType project      */
  13 /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
  14 /*  this file you indicate that you have read the license and              */
  15 /*  understand and accept it fully.                                        */
  16 /*                                                                         */
  17 /***************************************************************************/
  18
  19 /***************************************************************************/
  20 /*                                                                         */
  21 /* gxvalid is derived from both gxlayout module and otvalid module.        */
  22 /* Development of gxlayout is supported by the Information-technology      */
  23 /* Promotion Agency(IPA), Japan.                                           */
  24 /*                                                                         */
  25 /***************************************************************************/
  26
  27
  28 #include <ft2build.h>
  29 #include FT_INTERNAL_OBJECTS_H
  30 #include FT_SERVICE_GX_VALIDATE_H
  31
  32
  33   /* documentation is in ftgxval.h */
  34
  35   FT_EXPORT_DEF( FT_Error )
  36   FT_TrueTypeGX_Validate( FT_Face   face,
  37                           FT_UInt   validation_flags,
  38                           FT_Bytes  tables[FT_VALIDATE_GX_LENGTH],
  39                           FT_UInt   table_length )
  40   {
  41     FT_Service_GXvalidate  service;
  42     FT_Error               error;
  43
  44
  45     if ( !face )
  46     {
  47       error = FT_Err_Invalid_Face_Handle;
  48       goto Exit;
  49     }
  50
  51     if ( tables == NULL )
  52     {
  53       error = FT_Err_Invalid_Argument;
  54       goto Exit;
  55     }
  56
  57     FT_FACE_FIND_GLOBAL_SERVICE( face, service, GX_VALIDATE );
  58
  59     if ( service )
  60       error = service->validate( face,
  61                                  validation_flags,
  62                                  tables,
  63                                  table_length );
  64     else
  65       error = FT_Err_Unimplemented_Feature;
  66
  67   Exit:
  68     return error;
  69   }
  70
  71
  72   FT_EXPORT_DEF( void )
  73   FT_TrueTypeGX_Free( FT_Face   face,
  74                       FT_Bytes  table )
  75   {
  76     FT_Memory  memory;
  77
  78
  79     if ( !face )
  80       return;
  81
  82     memory = FT_FACE_MEMORY( face );
  83
  84     FT_FREE( table );
  85   }
  86
  87
  88   FT_EXPORT_DEF( FT_Error )
  89   FT_ClassicKern_Validate( FT_Face    face,
  90                            FT_UInt    validation_flags,
  91                            FT_Bytes  *ckern_table )
  92   {
  93     FT_Service_CKERNvalidate  service;
  94     FT_Error                  error;
  95
  96
  97     if ( !face )
  98     {
  99       error = FT_Err_Invalid_Face_Handle;
 100       goto Exit;
 101     }
 102
 103     if ( ckern_table == NULL )
 104     {
 105       error = FT_Err_Invalid_Argument;
 106       goto Exit;
 107     }
 108
 109     FT_FACE_FIND_GLOBAL_SERVICE( face, service, CLASSICKERN_VALIDATE );
 110
 111     if ( service )
 112       error = service->validate( face,
 113                                  validation_flags,
 114                                  ckern_table );
 115     else
 116       error = FT_Err_Unimplemented_Feature;
 117
 118   Exit:
 119     return error;
 120   }
 121
 122
 123   FT_EXPORT_DEF( void )
 124   FT_ClassicKern_Free( FT_Face   face,
 125                        FT_Bytes  table )
 126   {
 127     FT_Memory  memory;
 128
 129
 130     if ( !face )
 131       return;
 132
 133     memory = FT_FACE_MEMORY( face );
 134
 135
 136     FT_FREE( table );
 137   }
 138
 139
 140 /* END */