kc3-lang/freetype/src/autofit/afpic.c

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• Hash : 7f316f22
  Author :
  Date : 2012-08-31T00:20:29
  

  [autofit] Implement properties service framework. No properties are added yet. * src/autofit/afmodule.c: Include FT_SERVICE_PROPERTIES_H. (af_property_set, af_property_get): New dummy functions. (af_service_properties, af_services, af_get_interface): Provide service setup. (autofit_moduleclass): Add service interface. * src/autofit/afpic.c: Add necessary forward declarations. (autofit_module_class_pic_init): Add code for service addition. (autofit_module_pic_free): Add code for service removal. * src/autofit/afpic.h (AF_SERVICES_GET, AF_SERVICE_PROPERTIES_GET): New macros which provide necessary syntactical sugar for PIC support.

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• src/autofit/afpic.c

• /***************************************************************************/
  /*                                                                         */
  /*  afpic.c                                                                */
  /*                                                                         */
  /*    The FreeType position independent code services for autofit module.  */
  /*                                                                         */
  /*  Copyright 2009-2012 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 "afpic.h"
  #include "aferrors.h"
  
  
  #ifdef FT_CONFIG_OPTION_PIC
  
    /* forward declaration of PIC init functions from afmodule.c */
    FT_Error
    FT_Create_Class_af_services( FT_Library           library,
                                 FT_ServiceDescRec**  output_class );
  
    void
    FT_Destroy_Class_af_services( FT_Library          library,
                                  FT_ServiceDescRec*  clazz );
  
    void
    FT_Init_Class_af_service_properties( FT_Service_PropertiesRec*  clazz );
  
    void FT_Init_Class_af_autofitter_interface(
      FT_Library                   library,
      FT_AutoHinter_InterfaceRec*  clazz );
  
  
    /* forward declaration of PIC init functions from script classes */
  #include "aflatin.h"
  #ifdef FT_OPTION_AUTOFIT2
  #include "aflatin2.h"
  #endif
  #include "afcjk.h"
  #include "afdummy.h"
  #include "afindic.h"
  
  
    void
    autofit_module_class_pic_free( FT_Library  library )
    {
      FT_PIC_Container*  pic_container = &library->pic_container;
      FT_Memory          memory        = library->memory;
  
  
      if ( pic_container->autofit )
      {
        AFModulePIC*  container = (AFModulePIC*)pic_container->autofit;
  
  
        if ( container->af_services )
          FT_Destroy_Class_af_services( library,
                                        container->af_services );
        container->af_services = NULL;
  
        FT_FREE( container );
        pic_container->autofit = NULL;
      }
    }
  
  
    FT_Error
    autofit_module_class_pic_init( FT_Library  library )
    {
      FT_PIC_Container*  pic_container = &library->pic_container;
      FT_UInt            ss;
      FT_Error           error         = AF_Err_Ok;
      AFModulePIC*       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->autofit = container;
  
      /* initialize pointer table -                       */
      /* this is how the module usually expects this data */
      error = FT_Create_Class_af_services( library,
                                           &container->af_services );
      if ( error )
        goto Exit;
  
      FT_Init_Class_af_service_properties( &container->af_service_properties );
  
      for ( ss = 0 ; ss < AF_SCRIPT_CLASSES_REC_COUNT ; ss++ )
      {
        container->af_script_classes[ss] =
          &container->af_script_classes_rec[ss];
      }
      container->af_script_classes[AF_SCRIPT_CLASSES_COUNT - 1] = NULL;
  
      /* add call to initialization function when you add new scripts */
      ss = 0;
      FT_Init_Class_af_dummy_script_class(
        &container->af_script_classes_rec[ss++] );
  #ifdef FT_OPTION_AUTOFIT2
      FT_Init_Class_af_latin2_script_class(
        &container->af_script_classes_rec[ss++] );
  #endif
      FT_Init_Class_af_latin_script_class(
        &container->af_script_classes_rec[ss++] );
      FT_Init_Class_af_cjk_script_class(
        &container->af_script_classes_rec[ss++] );
      FT_Init_Class_af_indic_script_class(
        &container->af_script_classes_rec[ss++] );
  
      FT_Init_Class_af_autofitter_interface(
        library, &container->af_autofitter_interface );
  
    Exit:
      if ( error )
        autofit_module_class_pic_free( library );
      return error;
    }
  
  #endif /* FT_CONFIG_OPTION_PIC */
  
  
  /* END */
  

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