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

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• Hash : 842c4ea2
  Author :
  Date : 2012-09-18T15:23:41
  

  [autofit] Add hierarchical property access to some structures. * src/autofit/afglobal.h: Include `afmodule.h'. (AF_FaceGlobalsRec): Add `module' member. (AF_FaceGlobals): Typedef moved to... * src/autofit/aftypes.h: Here. (AF_ScriptMetricsRec): Add `globals' member. * src/autofit/afglobal.c (af_face_globals_new, af_face_globals_compute_script_coverage, af_face_globals_get_metrics): Updated. * src/autofit/afloader.c (af_loader_reset), src/autofit/afmodule.c (af_property_get): Updated.

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• src/autofit/afmodule.c

• /***************************************************************************/
  /*                                                                         */
  /*  afmodule.c                                                             */
  /*                                                                         */
  /*    Auto-fitter module implementation (body).                            */
  /*                                                                         */
  /*  Copyright 2003-2006, 2009, 2011-2012 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 "afmodule.h"
  #include "afloader.h"
  #include "afpic.h"
  
  #ifdef FT_DEBUG_AUTOFIT
    int    _af_debug_disable_horz_hints;
    int    _af_debug_disable_vert_hints;
    int    _af_debug_disable_blue_hints;
    void*  _af_debug_hints;
  #endif
  
  #include FT_INTERNAL_OBJECTS_H
  #include FT_INTERNAL_DEBUG_H
  #include FT_AUTOHINTER_H
  #include FT_SERVICE_PROPERTIES_H
  
  
    /*************************************************************************/
    /*                                                                       */
    /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
    /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
    /* messages during execution.                                            */
    /*                                                                       */
  #undef  FT_COMPONENT
  #define FT_COMPONENT  trace_afmodule
  
  
    FT_Error
    af_property_set( FT_Module    ft_module,
                     const char*  property_name,
                     const void*  value )
    {
      FT_Error   error  = AF_Err_Ok;
      AF_Module  module = (AF_Module)ft_module;
  
  
      if ( !ft_strcmp( property_name, "fallback-script" ) )
      {
        FT_UInt*  fallback_script = (FT_UInt*)value;
  
  
        module->fallback_script = *fallback_script;
  
        return error;
      }
  
      FT_TRACE0(( "af_property_get: missing property `%s'\n",
                  property_name ));
      return AF_Err_Missing_Property;
    }
  
  
    FT_Error
    af_property_get( FT_Module    ft_module,
                     const char*  property_name,
                     void*        value )
    {
      FT_Error   error           = AF_Err_Ok;
      AF_Module  module          = (AF_Module)ft_module;
      FT_UInt    fallback_script = module->fallback_script;
  
  
      if ( !ft_strcmp( property_name, "glyph-to-script-map" ) )
      {
        FT_Prop_GlyphToScriptMap*  prop = (FT_Prop_GlyphToScriptMap*)value;
        AF_FaceGlobals             globals;
  
  
        if ( !prop->face )
          return AF_Err_Invalid_Argument;
  
        globals = (AF_FaceGlobals)prop->face->autohint.data;
        if ( !globals )
        {
          /* trigger computation of the global script data */
          /* in case it hasn't been done yet               */
          error = af_face_globals_new( prop->face, &globals, module );
          if ( !error )
          {
            prop->face->autohint.data =
              (FT_Pointer)globals;
            prop->face->autohint.finalizer =
              (FT_Generic_Finalizer)af_face_globals_free;
          }
        }
  
        if ( !error )
          prop->map = globals->glyph_scripts;
  
        return error;
      }
      else if ( !ft_strcmp( property_name, "fallback-script" ) )
      {
        FT_UInt*  val = (FT_UInt*)value;
  
  
        *val = fallback_script;
  
        return error;
      }
  
      FT_TRACE0(( "af_property_get: missing property `%s'\n",
                  property_name ));
      return AF_Err_Missing_Property;
    }
  
  
    FT_DEFINE_SERVICE_PROPERTIESREC(
      af_service_properties,
      (FT_Properties_SetFunc)af_property_set,
      (FT_Properties_GetFunc)af_property_get )
  
  
    FT_DEFINE_SERVICEDESCREC1(
      af_services,
      FT_SERVICE_ID_PROPERTIES, &AF_SERVICE_PROPERTIES_GET )
  
  
    FT_CALLBACK_DEF( FT_Module_Interface )
    af_get_interface( FT_Module    module,
                      const char*  module_interface )
    {
      /* AF_SERVICES_GET derefers `library' in PIC mode */
  #ifdef FT_CONFIG_OPTION_PIC
      FT_Library  library;
  
  
      if ( !module )
        return NULL;
      library = module->library;
      if ( !library )
        return NULL;
  #else
      FT_UNUSED( module );
  #endif
  
      return ft_service_list_lookup( AF_SERVICES_GET, module_interface );
    }
  
  
    FT_CALLBACK_DEF( FT_Error )
    af_autofitter_init( AF_Module  module )
    {
      module->fallback_script = AF_SCRIPT_FALLBACK;
  
      return af_loader_init( module );
    }
  
  
    FT_CALLBACK_DEF( void )
    af_autofitter_done( AF_Module  module )
    {
      af_loader_done( module );
    }
  
  
    FT_CALLBACK_DEF( FT_Error )
    af_autofitter_load_glyph( AF_Module     module,
                              FT_GlyphSlot  slot,
                              FT_Size       size,
                              FT_UInt       glyph_index,
                              FT_Int32      load_flags )
    {
      FT_UNUSED( size );
  
      return af_loader_load_glyph( module, slot->face,
                                   glyph_index, load_flags );
    }
  
  
    FT_DEFINE_AUTOHINTER_INTERFACE(
      af_autofitter_interface,
      NULL,                                                    /* reset_face */
      NULL,                                              /* get_global_hints */
      NULL,                                             /* done_global_hints */
      (FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph )  /* load_glyph */
  
  
    FT_DEFINE_MODULE(
      autofit_module_class,
  
      FT_MODULE_HINTER,
      sizeof ( AF_ModuleRec ),
  
      "autofitter",
      0x10000L,   /* version 1.0 of the autofitter  */
      0x20000L,   /* requires FreeType 2.0 or above */
  
      (const void*)&AF_INTERFACE_GET,
  
      (FT_Module_Constructor)af_autofitter_init,
      (FT_Module_Destructor) af_autofitter_done,
      (FT_Module_Requester)  af_get_interface )
  
  
  /* END */
  

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