kc3-lang/freetype/src/base/ftbase.h

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• Hash : c081a4a9
  Author :
  Date : 2010-10-13T17:05:42
  

  [raccess] Grouping resource access rules based on Darwin VFS.
  
  MacOS X/Darwin kernel supports a few tricky methods to access
  a resource fork via ANSI C or POSIX interface.  Current resource
  fork accessor tries all possible methods to support all kernels.
  But if a method could open a resource fork but no font is found,
  there is no need to try other methods older than tested method.
  To determine whether the rule index is for Darwin VFS, a local
  function ftrfork.c::raccess_rule_by_darwin_vfs() is introduced.
  To use this function in ftobjs.c etc but it should be inlined,
  it is exposed by ftbase.h.
  
  * src/base/ftrfork.c (FT_RFork_Rule): New enum type to identify
  the rules to access the resource fork.
  (raccess_guess_rec): New structure to bind the rule function and
  rule enum type.
  (FT_Raccess_Guess): The list of the rule functions is replaced by
  (raccess_guess_table): This.  This is exposed to be used by other
  intra module functions.
  (raccess_rule_by_darwin_vfs): A function to return a boolean
  if the rule specified by the rule index is based on Darwin VFS.
  

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• src/base/ftbase.h

• /***************************************************************************/
  /*                                                                         */
  /*  ftbase.h                                                               */
  /*                                                                         */
  /*    The FreeType private functions used in base module (specification).  */
  /*                                                                         */
  /*  Copyright 2008, 2010 by                                                */
  /*  David Turner, Robert Wilhelm, Werner Lemberg, and suzuki toshiya.      */
  /*                                                                         */
  /*  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.                                        */
  /*                                                                         */
  /***************************************************************************/
  
  
  #ifndef __FTBASE_H__
  #define __FTBASE_H__
  
  
  #include <ft2build.h>
  #include FT_INTERNAL_OBJECTS_H
  
  
  FT_BEGIN_HEADER
  
  
    /* Assume the stream is sfnt-wrapped PS Type1 or sfnt-wrapped CID-keyed */
    /* font, and try to load a face specified by the face_index.            */
    FT_LOCAL( FT_Error )
    open_face_PS_from_sfnt_stream( FT_Library     library,
                                   FT_Stream      stream,
                                   FT_Long        face_index,
                                   FT_Int         num_params,
                                   FT_Parameter  *params,
                                   FT_Face       *aface );
  
  
    /* Create a new FT_Face given a buffer and a driver name. */
    /* From ftmac.c.                                          */
    FT_LOCAL( FT_Error )
    open_face_from_buffer( FT_Library   library,
                           FT_Byte*     base,
                           FT_ULong     size,
                           FT_Long      face_index,
                           const char*  driver_name,
                           FT_Face     *aface );
  
  
  #ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
    /* Mac OS X/Darwin kernel often changes recommended method to access */
    /* the resource fork and older methods makes the kernel issue the    */
    /* warning of deprecated method.  To calm it down, the methods based */
    /* on Darwin VFS should be grouped and skip the rest methods after   */
    /* the case the resource is opened but found to lack a font in it.   */
    FT_LOCAL( FT_Bool )
    raccess_rule_by_darwin_vfs( FT_UInt  rule_index );
  #endif /* FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */
  
  
  FT_END_HEADER
  
  #endif /* __FTBASE_H__ */
  
  
  /* END */
  

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