/*

 * Copyright © 2017  Google, Inc.

 *

 *  This is part of HarfBuzz, a text shaping library.

 *

 * Permission is hereby granted, without written agreement and without

 * license or royalty fees, to use, copy, modify, and distribute this

 * software and its documentation for any purpose, provided that the

 * above copyright notice and the following two paragraphs appear in

 * all copies of this software.

 *

 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR

 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES

 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN

 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH

 * DAMAGE.

 *

 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,

 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS

 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO

 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

 *

 * Google Author(s): Behdad Esfahbod

 */

#ifndef HB_AAT_LAYOUT_HH

#define HB_AAT_LAYOUT_HH

#include "hb.hh"

#include "hb-ot-shape.hh"

struct hb_aat_feature_mapping_t

{

  hb_tag_t otFeatureTag;

  hb_aat_layout_feature_type_t aatFeatureType;

  hb_aat_layout_feature_selector_t selectorToEnable;

  hb_aat_layout_feature_selector_t selectorToDisable;

  static int cmp (const void *key_, const void *entry_)

  {

    hb_tag_t key = * (unsigned int *) key_;

    const hb_aat_feature_mapping_t * entry = (const hb_aat_feature_mapping_t *) entry_;

    return key < entry->otFeatureTag ? -1 :

           key > entry->otFeatureTag ? 1 :

           0;

  }

};

HB_INTERNAL const hb_aat_feature_mapping_t *

hb_aat_layout_find_feature_mapping (hb_tag_t tag);

HB_INTERNAL void

hb_aat_layout_compile_map (const hb_aat_map_builder_t *mapper,

                           hb_aat_map_t *map);

HB_INTERNAL void

hb_aat_layout_substitute (const hb_ot_shape_plan_t *plan,

                          hb_font_t *font,

                          hb_buffer_t *buffer);

HB_INTERNAL void

hb_aat_layout_zero_width_deleted_glyphs (hb_buffer_t *buffer);

HB_INTERNAL void

hb_aat_layout_remove_deleted_glyphs (hb_buffer_t *buffer);

HB_INTERNAL void

hb_aat_layout_position (const hb_ot_shape_plan_t *plan,

                        hb_font_t *font,

                        hb_buffer_t *buffer);

HB_INTERNAL void

hb_aat_layout_track (const hb_ot_shape_plan_t *plan,

                     hb_font_t *font,

                     hb_buffer_t *buffer);

HB_INTERNAL hb_language_t

_hb_aat_language_get (hb_face_t *face,

                      unsigned int i);

#endif /* HB_AAT_LAYOUT_HH */