apdf/freetype2/autohint/ahmodule.c

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  ahmodule.c                                                             */
   4 /*                                                                         */
   5 /*    Auto-hinting module implementation (declaration).                    */
   6 /*                                                                         */
   7 /*  Copyright 2000-2001, 2002 Catharon Productions Inc.                    */
   8 /*  Author: David Turner                                                   */
   9 /*                                                                         */
  10 /*  This file is part of the Catharon Typography Project and shall only    */
  11 /*  be used, modified, and distributed under the terms of the Catharon     */
  12 /*  Open Source License that should come with this file under the name     */
  13 /*  `CatharonLicense.txt'.  By continuing to use, modify, or distribute    */
  14 /*  this file you indicate that you have read the license and              */
  15 /*  understand and accept it fully.                                        */
  16 /*                                                                         */
  17 /*  Note that this license is compatible with the FreeType license.        */
  18 /*                                                                         */
  19 /***************************************************************************/
  20
  21
  22 #include <ft2build.h>
  23 #include FT_MODULE_H
  24 #include "ahhint.h"
  25
  26
  27 #ifdef  DEBUG_HINTER
  28    extern AH_Hinter*  ah_debug_hinter       = NULL;
  29    extern FT_Bool     ah_debug_disable_horz = 0;
  30    extern FT_Bool     ah_debug_disable_vert = 0;
  31 #endif
  32
  33   typedef struct  FT_AutoHinterRec_
  34   {
  35     FT_ModuleRec  root;
  36     AH_Hinter*    hinter;
  37
  38   } FT_AutoHinterRec;
  39
  40
  41   FT_CALLBACK_DEF( FT_Error )
  42   ft_autohinter_init( FT_AutoHinter  module )
  43   {
  44     FT_Error  error;
  45
  46
  47     error = ah_hinter_new( module->root.library, &module->hinter );
  48 #ifdef DEBUG_HINTER
  49     if ( !error )
  50       ah_debug_hinter = module->hinter;
  51 #endif
  52     return error;
  53   }
  54
  55
  56   FT_CALLBACK_DEF( void )
  57   ft_autohinter_done( FT_AutoHinter  module )
  58   {
  59     ah_hinter_done( module->hinter );
  60
  61 #ifdef DEBUG_HINTER
  62     ah_debug_hinter = NULL;
  63 #endif
  64   }
  65
  66
  67   FT_CALLBACK_DEF( FT_Error )
  68   ft_autohinter_load_glyph( FT_AutoHinter  module,
  69                             FT_GlyphSlot   slot,
  70                             FT_Size        size,
  71                             FT_UInt        glyph_index,
  72                             FT_ULong       load_flags )
  73   {
  74     return ah_hinter_load_glyph( module->hinter,
  75                                  slot, size, glyph_index, load_flags );
  76   }
  77
  78
  79   FT_CALLBACK_DEF( void )
  80   ft_autohinter_reset_globals( FT_AutoHinter  module,
  81                                FT_Face        face )
  82   {
  83     FT_UNUSED( module );
  84
  85     if ( face->autohint.data )
  86       ah_hinter_done_face_globals( (AH_Face_Globals*)(face->autohint.data) );
  87   }
  88
  89
  90   FT_CALLBACK_DEF( void )
  91   ft_autohinter_get_globals( FT_AutoHinter  module,
  92                              FT_Face        face,
  93                              void**         global_hints,
  94                              long*          global_len )
  95   {
  96     ah_hinter_get_global_hints( module->hinter, face,
  97                                 global_hints, global_len );
  98   }
  99
 100
 101   FT_CALLBACK_DEF( void )
 102   ft_autohinter_done_globals( FT_AutoHinter  module,
 103                               void*          global_hints )
 104   {
 105     ah_hinter_done_global_hints( module->hinter, global_hints );
 106   }
 107
 108
 109   FT_CALLBACK_TABLE_DEF
 110   const FT_AutoHinter_ServiceRec  ft_autohinter_service =
 111   {
 112     ft_autohinter_reset_globals,
 113     ft_autohinter_get_globals,
 114     ft_autohinter_done_globals,
 115     ft_autohinter_load_glyph
 116   };
 117
 118
 119   FT_CALLBACK_TABLE_DEF
 120   const FT_Module_Class  autohint_module_class =
 121   {
 122     ft_module_hinter,
 123     sizeof ( FT_AutoHinterRec ),
 124
 125     "autohinter",
 126     0x10000L,   /* version 1.0 of the autohinter  */
 127     0x20000L,   /* requires FreeType 2.0 or above */
 128
 129     (const void*) &ft_autohinter_service,
 130
 131     (FT_Module_Constructor)ft_autohinter_init,
 132     (FT_Module_Destructor) ft_autohinter_done,
 133     (FT_Module_Requester)  0
 134   };
 135
 136
 137 /* END */