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FreeType on OpenGL ES (iPhone)

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24 Nov 2010CPOL4 min read 86K   3K   27  
Faster, smarter and better looking fonts rendered with OpenGL ES
/***************************************************************************/
/*                                                                         */
/*  ftgxval.c                                                              */
/*                                                                         */
/*    FreeType API for validating TrueTyepGX/AAT tables (body).            */
/*                                                                         */
/*  Copyright 2004, 2005, 2006, 2010 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_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_Err_Invalid_Face_Handle;
      goto Exit;
    }

    if ( tables == NULL )
    {
      error = FT_Err_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_Err_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_Err_Invalid_Face_Handle;
      goto Exit;
    }

    if ( ckern_table == NULL )
    {
      error = FT_Err_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_Err_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 */

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer Astronautz
Spain Spain
After working in the software industry for many years, I've started my own games company that specialises in strategy games for mobile platforms.

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