godot/thirdparty/freetype/src/type1/t1afm.c

/****************************************************************************
 *
 * t1afm.c
 *
 *   AFM support for Type 1 fonts (body).
 *
 * Copyright (C) 1996-2023 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 "t1afm.h"
#include <freetype/internal/ftdebug.h>
#include <freetype/internal/ftstream.h>
#include <freetype/internal/psaux.h>
#include "t1errors.h"


#ifndef T1_CONFIG_OPTION_NO_AFM

  /**************************************************************************
   *
   * 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 …


  FT_LOCAL_DEF( void )
  T1_Done_Metrics( FT_Memory     memory,
                   AFM_FontInfo  fi )
  { … }


  /* read a glyph name and return the equivalent glyph index */
  static FT_Int
  t1_get_index( const char*  name,
                FT_Offset    len,
                void*        user_data )
  { … }


#undef  KERN_INDEX
#define KERN_INDEX( g1, g2 ) …


  /* compare two kerning pairs */
  FT_COMPARE_DEF( int )
  compare_kern_pairs( const void*  a,
                      const void*  b )
  { … }


  /* parse a PFM file -- for now, only read the kerning pairs */
  static FT_Error
  T1_Read_PFM( FT_Face       t1_face,
               FT_Stream     stream,
               AFM_FontInfo  fi )
  { … }


  /* parse a metrics file -- either AFM or PFM depending on what */
  /* it turns out to be                                          */
  FT_LOCAL_DEF( FT_Error )
  T1_Read_Metrics( FT_Face    t1_face,
                   FT_Stream  stream )
  { … }


  /* find the kerning for a given glyph pair */
  FT_LOCAL_DEF( void )
  T1_Get_Kerning( AFM_FontInfo  fi,
                  FT_UInt       glyph1,
                  FT_UInt       glyph2,
                  FT_Vector*    kerning )
  { … }


  FT_LOCAL_DEF( FT_Error )
  T1_Get_Track_Kerning( FT_Face    face,
                        FT_Fixed   ptsize,
                        FT_Int     degree,
                        FT_Fixed*  kerning )
  { … }

#else /* T1_CONFIG_OPTION_NO_AFM */

  /* ANSI C doesn't like empty source files */
  typedef int  t1_afm_dummy_;

#endif /* T1_CONFIG_OPTION_NO_AFM */


/* END */