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

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• Hash : d8324571
  Author :
  Date : 2013-12-19T15:45:24
  

  [autofit] Factor scripts and uniranges out of writing system files. * src/autofit/afranges.c, src/autofit/afranges.h: New files. * src/autofit/afscript.h: Extend `SCRIPT' macro with more parameters, taking data from the writing system files. * src/autofit/aftypes.h: Updated. * src/autofit/afglobal.c: Include `afranges.h'. Load `afscript.h' to call AF_DEFINE_SCRIPT_CLASS. * src/autofit/afglobal.c: Include `afranges.h'. Load `afscript.h' to call AF_DECLARE_SCRIPT_CLASS. * src/autofit/afcjk.c, src/autofit/afcjk.h: Updated. * src/autofit/afdummy.c, src/autofit/afdummy.h: Updated. * src/autofit/afindic.c, src/autofit/afindic.h: Updated. * src/autofit/aflatin.c, src/autofit/aflatin.h: Updated. * src/autofit/aflatn2.c, src/autofit/aflatn2.h: Updated. * src/autofit/afpic.c: Updated. * src/autofir/autofit.c: Include `afranges.c'. * src/autofit/rules.mk (AUTOF_DRV_SRC): Add `afranges.c'.

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• src/autofit/afindic.c

• /***************************************************************************/
  /*                                                                         */
  /*  afindic.c                                                              */
  /*                                                                         */
  /*    Auto-fitter hinting routines for Indic writing system (body).        */
  /*                                                                         */
  /*  Copyright 2007, 2011-2013 by                                           */
  /*  Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>.    */
  /*                                                                         */
  /*  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 "aftypes.h"
  #include "aflatin.h"
  
  
  #ifdef AF_CONFIG_OPTION_INDIC
  
  #include "afindic.h"
  #include "aferrors.h"
  #include "afcjk.h"
  
  
  #ifdef AF_CONFIG_OPTION_USE_WARPER
  #include "afwarp.h"
  #endif
  
  
    static FT_Error
    af_indic_metrics_init( AF_CJKMetrics  metrics,
                           FT_Face        face )
    {
      /* skip blue zone init in CJK routines */
      FT_CharMap  oldmap = face->charmap;
  
  
      metrics->units_per_em = face->units_per_EM;
  
      if ( FT_Select_Charmap( face, FT_ENCODING_UNICODE ) )
        face->charmap = NULL;
      else
      {
        af_cjk_metrics_init_widths( metrics, face );
  #if 0
        /* either need indic specific blue_chars[] or just skip blue zones */
        af_cjk_metrics_init_blues( metrics, face, af_cjk_blue_chars );
  #endif
        af_cjk_metrics_check_digits( metrics, face );
      }
  
      FT_Set_Charmap( face, oldmap );
  
      return FT_Err_Ok;
    }
  
  
    static void
    af_indic_metrics_scale( AF_CJKMetrics  metrics,
                            AF_Scaler      scaler )
    {
      /* use CJK routines */
      af_cjk_metrics_scale( metrics, scaler );
    }
  
  
    static FT_Error
    af_indic_hints_init( AF_GlyphHints  hints,
                         AF_CJKMetrics  metrics )
    {
      /* use CJK routines */
      return af_cjk_hints_init( hints, metrics );
    }
  
  
    static FT_Error
    af_indic_hints_apply( AF_GlyphHints  hints,
                          FT_Outline*    outline,
                          AF_CJKMetrics  metrics )
    {
      /* use CJK routines */
      return af_cjk_hints_apply( hints, outline, metrics );
    }
  
  
    /*************************************************************************/
    /*************************************************************************/
    /*****                                                               *****/
    /*****                I N D I C   S C R I P T   C L A S S            *****/
    /*****                                                               *****/
    /*************************************************************************/
    /*************************************************************************/
  
  
    AF_DEFINE_WRITING_SYSTEM_CLASS(
      af_indic_writing_system_class,
  
      AF_WRITING_SYSTEM_INDIC,
  
      sizeof ( AF_CJKMetricsRec ),
  
      (AF_WritingSystem_InitMetricsFunc) af_indic_metrics_init,
      (AF_WritingSystem_ScaleMetricsFunc)af_indic_metrics_scale,
      (AF_WritingSystem_DoneMetricsFunc) NULL,
  
      (AF_WritingSystem_InitHintsFunc)   af_indic_hints_init,
      (AF_WritingSystem_ApplyHintsFunc)  af_indic_hints_apply
    )
  
  
  #else /* !AF_CONFIG_OPTION_INDIC */
  
  
    AF_DEFINE_WRITING_SYSTEM_CLASS(
      af_indic_writing_system_class,
  
      AF_WRITING_SYSTEM_INDIC,
  
      sizeof ( AF_CJKMetricsRec ),
  
      (AF_WritingSystem_InitMetricsFunc) NULL,
      (AF_WritingSystem_ScaleMetricsFunc)NULL,
      (AF_WritingSystem_DoneMetricsFunc) NULL,
  
      (AF_WritingSystem_InitHintsFunc)   NULL,
      (AF_WritingSystem_ApplyHintsFunc)  NULL
    )
  
  
  #endif /* !AF_CONFIG_OPTION_INDIC */
  
  
  /* END */
  

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