ftgxval.c

Go to the documentation of this file.

/****************************************************************************
 *
 * ftgxval.c
 *
 *   FreeType API for validating TrueTypeGX/AAT tables (body).
 *
 * Copyright (C) 2004-2019 by
 * Masatake YAMATO, Redhat K.K,
 * 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.
 *
 */
 
/****************************************************************************
 *
 * gxvalid is derived from both gxlayout module and otvalid module.
 * Development of gxlayout is supported by the Information-technology
 * Promotion Agency(IPA), Japan.
 *
 */
 
 
#include <ft2build.h>
#include FT_INTERNAL_DEBUG_H
 
#include FT_INTERNAL_OBJECTS_H
#include FT_SERVICE_GX_VALIDATE_H
 
 
  /* documentation is in ftgxval.h */
 
  FT_EXPORT_DEF( FT_Error )
  FT_TrueTypeGX_Validate( FT_Face   face,
                          FT_UInt   validation_flags,
                          FT_Bytes  tables[FT_VALIDATE_GX_LENGTH],
                          FT_UInt   table_length )
  {
    FT_Service_GXvalidate  service;
    FT_Error               error;
 
 
    if ( !face )
    {
      error = FT_THROW( Invalid_Face_Handle );
      goto Exit;
    }
 
    if ( !tables )
    {
      error = FT_THROW( Invalid_Argument );
      goto Exit;
    }
 
    FT_FACE_FIND_GLOBAL_SERVICE( face, service, GX_VALIDATE );
 
    if ( service )
      error = service->validate( face,
                                 validation_flags,
                                 tables,
                                 table_length );
    else
      error = FT_THROW( Unimplemented_Feature );
 
  Exit:
    return error;
  }
 
 
  FT_EXPORT_DEF( void )
  FT_TrueTypeGX_Free( FT_Face   face,
                      FT_Bytes  table )
  {
    FT_Memory  memory;
 
 
    if ( !face )
      return;
 
    memory = FT_FACE_MEMORY( face );
 
    FT_FREE( table );
  }
 
 
  FT_EXPORT_DEF( FT_Error )
  FT_ClassicKern_Validate( FT_Face    face,
                           FT_UInt    validation_flags,
                           FT_Bytes  *ckern_table )
  {
    FT_Service_CKERNvalidate  service;
    FT_Error                  error;
 
 
    if ( !face )
    {
      error = FT_THROW( Invalid_Face_Handle );
      goto Exit;
    }
 
    if ( !ckern_table )
    {
      error = FT_THROW( Invalid_Argument );
      goto Exit;
    }
 
    FT_FACE_FIND_GLOBAL_SERVICE( face, service, CLASSICKERN_VALIDATE );
 
    if ( service )
      error = service->validate( face,
                                 validation_flags,
                                 ckern_table );
    else
      error = FT_THROW( Unimplemented_Feature );
 
  Exit:
    return error;
  }
 
 
  FT_EXPORT_DEF( void )
  FT_ClassicKern_Free( FT_Face   face,
                       FT_Bytes  table )
  {
    FT_Memory  memory;
 
 
    if ( !face )
      return;
 
    memory = FT_FACE_MEMORY( face );
 
 
    FT_FREE( table );
  }
 
 
/* END */