src/truetype/ttpic.c

/***************************************************************************/
/*                                                                         */
/*  ttpic.c                                                                */
/*                                                                         */
/*    The FreeType position independent code services for truetype module. */
/*                                                                         */
/*  Copyright 2009-2017 by                                                 */
/*  Oran Agra and Mickey Gabel.                                            */
/*                                                                         */
/*  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.                                        */
/*                                                                         */
/***************************************************************************/


#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_INTERNAL_OBJECTS_H
#include "ttpic.h"
#include "tterrors.h"


#ifdef FT_CONFIG_OPTION_PIC

  /* forward declaration of PIC init functions from ttdriver.c */
  FT_Error
  FT_Create_Class_tt_services( FT_Library           library,
                               FT_ServiceDescRec**  output_class );
  void
  FT_Destroy_Class_tt_services( FT_Library          library,
                                FT_ServiceDescRec*  clazz );
  void
  FT_Init_Class_tt_service_gx_multi_masters(
    FT_Service_MultiMastersRec*  sv_mm );
  void
  FT_Init_Class_tt_service_truetype_glyf(
    FT_Service_TTGlyfRec*  sv_ttglyf );


  void
  tt_driver_class_pic_free( FT_Library  library )
  {
    FT_PIC_Container*  pic_container = &library->pic_container;
    FT_Memory          memory        = library->memory;


    if ( pic_container->truetype )
    {
      TTModulePIC*  container = (TTModulePIC*)pic_container->truetype;


      if ( container->tt_services )
        FT_Destroy_Class_tt_services( library, container->tt_services );
      container->tt_services = NULL;
      FT_FREE( container );
      pic_container->truetype = NULL;
    }
  }


  FT_Error
  tt_driver_class_pic_init( FT_Library  library )
  {
    FT_PIC_Container*  pic_container = &library->pic_container;
    FT_Error           error         = FT_Err_Ok;
    TTModulePIC*       container     = NULL;
    FT_Memory          memory        = library->memory;


    /* allocate pointer, clear and set global container pointer */
    if ( FT_ALLOC( container, sizeof ( *container ) ) )
      return error;
    FT_MEM_SET( container, 0, sizeof ( *container ) );
    pic_container->truetype = container;

    /* initialize pointer table - this is how the module usually */
    /* expects this data                                         */
    error = FT_Create_Class_tt_services( library,
                                         &container->tt_services );
    if ( error )
      goto Exit;
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
    FT_Init_Class_tt_service_gx_multi_masters(
      &container->tt_service_gx_multi_masters );
#endif
    FT_Init_Class_tt_service_truetype_glyf(
      &container->tt_service_truetype_glyf );

  Exit:
    if ( error )
      tt_driver_class_pic_free( library );
    return error;
  }

#else

  /* ANSI C doesn't like empty source files */
  int  _truetype_ttpic_dummy = 1;

#endif /* FT_CONFIG_OPTION_PIC */


/* END */