lib/tashaper.h

   1 /* tashaper.h */
   2
   3 /*
   4  * Copyright (C) 2014-2022 by Werner Lemberg.
   5  *
   6  * This file is part of the ttfautohint library, and may only be used,
   7  * modified, and distributed under the terms given in `COPYING'.  By
   8  * continuing to use, modify, or distribute this file you indicate that you
   9  * have read `COPYING' and understand and accept it fully.
  10  *
  11  * The file `COPYING' mentioned in the previous paragraph is distributed
  12  * with the ttfautohint library.
  13  */
  14
  15
  16 /* originally file `hbshim.h' (2014-Jan-11) from FreeType */
  17
  18 /* heavily modified 2014 by Werner Lemberg <wl@gnu.org> */
  19
  20 #ifndef TASHAPER_H_
  21 #define TASHAPER_H_
  22
  23
  24 #include <ft2build.h>
  25 #include FT_FREETYPE_H
  26
  27 #include <hb.h>
  28 #include <hb-ot.h>
  29 #include <hb-ft.h>
  30
  31 #include "ta.h"
  32
  33
  34 /* in file `tafeature.c' */
  35 extern const hb_tag_t feature_tags[];
  36 extern size_t feature_tags_size;
  37
  38
  39 FT_Error
  40 ta_shaper_get_coverage(TA_FaceGlobals globals,
  41                        TA_StyleClass style_class,
  42                        FT_UShort* gstyles,
  43                        FT_UInt* sample_glyph,
  44                        FT_Bool default_script);
  45
  46 void*
  47 ta_shaper_buf_create(FT_Face face);
  48
  49 void
  50 ta_shaper_buf_destroy(FT_Face face,
  51                       void* buf);
  52
  53 const char*
  54 ta_shaper_get_cluster(const char* p,
  55                       TA_StyleMetrics metrics,
  56                       void* buf_,
  57                       unsigned int* count);
  58
  59 FT_ULong
  60 ta_shaper_get_elem(TA_StyleMetrics metrics,
  61                    void* buf_,
  62                    unsigned int idx,
  63                    FT_Long* x_advance,
  64                    FT_Long* y_offset);
  65
  66 #endif /* TASHAPER_H_ */
  67
  68 /* end of tashaper.h */