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

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• Hash : 72f5ff5b
  Author :
  Date : 2013-07-31T22:49:29
  

  [autofit] Introduce `writing systems'. This patch adds a new top level to the auto-hinter's script class hierarchy. It defines `writing systems' which can contain multiple scripts. For example, the `latin' writing system (in file `aflatin.c') is able to support scripts like Latin, Cyrillic, Armenian, etc., which can be handled similarly. Scripts are now named using four-letter OpenType tags. * src/autofit/aftypes.h (AF_ScriptClassRec): Move relevant members to... (AF_WritingSystemClassRec): This new structure. It holds pointers to functions which can be shared among related scripts. (AF_WritingSystem): New enumeration. (AF_Script): Revised values using four-letter tags. (AF_DEFINE_WRITING_SYSTEM_CLASS): New macro. (AF_DEFINE_SCRIPT_CLASS): Updated. * src/autofit/afglobal.c (af_writing_system_classes): New global, constant array. (af_script_classes): Updated. (af_face_globals_free): Updated. Remove assertion. (af_face_globals_get_metrics): Updated. * src/autofit/afglobal.h (AF_SCRIPT_FALLBACK) [!AF_CONFIG_OPTION_CJK]: Handle this case. * src/autofit/afloader.c (af_loader_load_g, af_loader_load_glyph): Updated. * src/autofit/afpic.c (autofit_module_class_pic_init): Updated; initialize structures for both writing systems and scripts. * src/autofit/afpic.h: Updated. (AF_WRITING_SYSTEM_CLASSES_GET): New macro. * src/autofit/afcjk.c (af_cjk_writing_system_class): New writing system. (af_cjk_uniranges): Renamed to... (af_hani_uniranges): This. (af_cjk_script_class): Reduced and renamed to... (af_hani_script_class): This. * src/autofit/afcjk.h: Updated. * src/autofit/afdummy.c (af_dummy_writing_system_class): New writing system. (af_dummy_script_class): Reduced and renamed to... (af_dflt_script_class): This. * src/autofit/afdummy.h: Updated. * src/autofit/afindic.c (af_indic_writing_system_class): New writing system. (af_indic_uniranges): Renamed to... (af_deva_uniranges): This. (af_indic_script_class): Reduced and renamed to... (af_deva_script_class): This. * src/autofit/afcjk.h: Updated. * src/autofit/aflatin.c (af_latin_writing_system_class): New writing system. (af_latin_uniranges): Renamed to... (af_latn_uniranges): This. (af_latin_script_class): Reduced and renamed to... (af_latn_script_class): This. * src/autofit/aflatin.h: Updated. * src/autofit/aflatin2.c (af_latin2_writing_system_class): New writing system. (af_latin2_uniranges): Renamed to... (af_ltn2_uniranges): This. Synchronize ranges with `latin'. (af_latin2_script_class): Reduced and renamed to... (af_ltn2_script_class): This. * src/autofit/aflatin2.h: Updated.

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• src/autofit/afdummy.c

• /***************************************************************************/
  /*                                                                         */
  /*  afdummy.c                                                              */
  /*                                                                         */
  /*    Auto-fitter dummy routines to be used if no hinting should be        */
  /*    performed (body).                                                    */
  /*                                                                         */
  /*  Copyright 2003-2005, 2011, 2013 by                                     */
  /*  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.                                        */
  /*                                                                         */
  /***************************************************************************/
  
  
  #include "afdummy.h"
  #include "afhints.h"
  #include "aferrors.h"
  
  
    static FT_Error
    af_dummy_hints_init( AF_GlyphHints     hints,
                         AF_ScriptMetrics  metrics )
    {
      af_glyph_hints_rescale( hints,
                              metrics );
      return FT_Err_Ok;
    }
  
  
    static FT_Error
    af_dummy_hints_apply( AF_GlyphHints  hints,
                          FT_Outline*    outline )
    {
      FT_UNUSED( hints );
      FT_UNUSED( outline );
  
      return FT_Err_Ok;
    }
  
  
    AF_DEFINE_WRITING_SYSTEM_CLASS(
      af_dummy_writing_system_class,
  
      AF_WRITING_SYSTEM_DUMMY,
  
      sizeof ( AF_ScriptMetricsRec ),
  
      (AF_Script_InitMetricsFunc) NULL,
      (AF_Script_ScaleMetricsFunc)NULL,
      (AF_Script_DoneMetricsFunc) NULL,
  
      (AF_Script_InitHintsFunc)   af_dummy_hints_init,
      (AF_Script_ApplyHintsFunc)  af_dummy_hints_apply
    )
  
  
    AF_DEFINE_SCRIPT_CLASS(
      af_dflt_script_class,
  
      AF_SCRIPT_DFLT,
      AF_WRITING_SYSTEM_DUMMY,
  
      NULL,
      '\0'
    )
  
  
  /* END */
  

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