1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  ttkern.c                                                               */
   4 /*                                                                         */
   5 /*    Load the basic TrueType kerning table.  This doesn't handle          */
   6 /*    kerning data within the GPOS table at the moment.                    */
   7 /*                                                                         */
   8 /*  Copyright 1996-2018 by                                                 */
   9 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  10 /*                                                                         */
  11 /*  This file is part of the FreeType project, and may only be used,       */
  12 /*  modified, and distributed under the terms of the FreeType project      */
  13 /*  license, LICENSE.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 /***************************************************************************/
  18 
  19 
  20 #include <ft2build.h>
  21 #include FT_INTERNAL_DEBUG_H
  22 #include FT_INTERNAL_STREAM_H
  23 #include FT_TRUETYPE_TAGS_H
  24 #include "ttkern.h"
  25 
  26 #include "sferrors.h"
  27 
  28 
  29   /*************************************************************************/
  30   /*                                                                       */
  31   /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
  32   /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
  33   /* messages during execution.                                            */
  34   /*                                                                       */
  35 #undef  FT_COMPONENT
  36 #define FT_COMPONENT  trace_ttkern
  37 
  38 
  39 #undef  TT_KERN_INDEX
  40 #define TT_KERN_INDEX( g1, g2 )  ( ( (FT_ULong)(g1) << 16 ) | (g2) )
  41 
  42 
  43   FT_LOCAL_DEF( FT_Error )
  44   tt_face_load_kern( TT_Face    face,
  45                      FT_Stream  stream )
  46   {
  47     FT_Error   error;
  48     FT_ULong   table_size;
  49     FT_Byte*   p;
  50     FT_Byte*   p_limit;
  51     FT_UInt    nn, num_tables;
  52     FT_UInt32  avail = 0, ordered = 0;
  53 
  54 
  55     /* the kern table is optional; exit silently if it is missing */
  56     error = face->goto_table( face, TTAG_kern, stream, &table_size );

   1 /****************************************************************************
   2  *
   3  * ttkern.c
   4  *
   5  *   Load the basic TrueType kerning table.  This doesn't handle
   6  *   kerning data within the GPOS table at the moment.
   7  *
   8  * Copyright (C) 1996-2019 by
   9  * David Turner, Robert Wilhelm, and Werner Lemberg.
  10  *
  11  * This file is part of the FreeType project, and may only be used,
  12  * modified, and distributed under the terms of the FreeType project
  13  * license, LICENSE.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  */
  18 
  19 
  20 #include <ft2build.h>
  21 #include FT_INTERNAL_DEBUG_H
  22 #include FT_INTERNAL_STREAM_H
  23 #include FT_TRUETYPE_TAGS_H
  24 #include "ttkern.h"
  25 
  26 #include "sferrors.h"
  27 
  28 
  29   /**************************************************************************
  30    *
  31    * The macro FT_COMPONENT is used in trace mode.  It is an implicit
  32    * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
  33    * messages during execution.
  34    */
  35 #undef  FT_COMPONENT
  36 #define FT_COMPONENT  ttkern
  37 
  38 
  39 #undef  TT_KERN_INDEX
  40 #define TT_KERN_INDEX( g1, g2 )  ( ( (FT_ULong)(g1) << 16 ) | (g2) )
  41 
  42 
  43   FT_LOCAL_DEF( FT_Error )
  44   tt_face_load_kern( TT_Face    face,
  45                      FT_Stream  stream )
  46   {
  47     FT_Error   error;
  48     FT_ULong   table_size;
  49     FT_Byte*   p;
  50     FT_Byte*   p_limit;
  51     FT_UInt    nn, num_tables;
  52     FT_UInt32  avail = 0, ordered = 0;
  53 
  54 
  55     /* the kern table is optional; exit silently if it is missing */
  56     error = face->goto_table( face, TTAG_kern, stream, &table_size );