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

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• Hash : a3364001
  Author :
  Date : 2014-01-26T09:45:23
  

  [autofit] Introduce two more slots for standard characters. This is useful for OpenType features like `c2sc' (caps to small caps) that don't have lowercase letters by definition, or other features that mainly operate on numerals. * src/autofit/afscript.h: Add more standard characters. * src/autofit/aftypes.h: Update use of `SCRIPT' macro. (AF_ScriptClassRec): Add members to hold two more standard characters. (AF_DEFINE_SCRIPT_CLASS): Updated. * src/autofit/afglobal.c, src/autofit/afglobal.h, * src/autofit/afpic.c, src/autofit/afranges.h, src/autofit/hbshim.c: Update use of `SCRIPT' macro. * src/autofit/afcjk.c (af_cjk_metrics_init_widths), src/autofit/aflatin.c (af_latin_metrics_init_widths): Scan two more standard characters.

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• src/autofit/afpic.c

• /***************************************************************************/
  /*                                                                         */
  /*  afpic.c                                                                */
  /*                                                                         */
  /*    The FreeType position independent code services for autofit module.  */
  /*                                                                         */
  /*  Copyright 2009-2014 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 "afglobal.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 writing system classes */
  #undef  WRITING_SYSTEM
  #define WRITING_SYSTEM( ws, WS )  /* empty */
  
  #include "afwrtsys.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         = FT_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_WRITING_SYSTEM_MAX; ss++ )
        container->af_writing_system_classes[ss] =
          &container->af_writing_system_classes_rec[ss];
      container->af_writing_system_classes[AF_WRITING_SYSTEM_MAX] = NULL;
  
      for ( ss = 0; ss < AF_SCRIPT_MAX; ss++ )
        container->af_script_classes[ss] =
          &container->af_script_classes_rec[ss];
      container->af_script_classes[AF_SCRIPT_MAX] = NULL;
  
      for ( ss = 0; ss < AF_STYLE_MAX; ss++ )
        container->af_style_classes[ss] =
          &container->af_style_classes_rec[ss];
      container->af_style_classes[AF_STYLE_MAX] = NULL;
  
  #undef  WRITING_SYSTEM
  #define WRITING_SYSTEM( ws, WS )                             \
          FT_Init_Class_af_ ## ws ## _writing_system_class(    \
            &container->af_writing_system_classes_rec[ss++] );
  
      ss = 0;
  #include "afwrtsys.h"
  
  #undef  SCRIPT
  #define SCRIPT( s, S, d, h, sc1, sc2, sc3 )          \
          FT_Init_Class_af_ ## s ## _script_class(     \
            &container->af_script_classes_rec[ss++] );
  
      ss = 0;
  #include "afscript.h"
  
  #undef  STYLE
  #define STYLE( s, S, d, ws, sc, bss, c )            \
          FT_Init_Class_af_ ## s ## _style_class(     \
            &container->af_style_classes_rec[ss++] );
  
      ss = 0;
  #include "afstyles.h"
  
      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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