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/*
* 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;
uint16_t aatFeatureType;
uint16_t selectorToEnable;
uint16_t selectorToDisable;
static inline 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 hb_bool_t
hb_aat_layout_has_substitution (hb_face_t *face);
HB_INTERNAL void
hb_aat_layout_substitute (hb_ot_shape_plan_t *plan,
hb_font_t *font,
hb_buffer_t *buffer);
HB_INTERNAL hb_bool_t
hb_aat_layout_has_positioning (hb_face_t *face);
HB_INTERNAL void
hb_aat_layout_position (hb_ot_shape_plan_t *plan,
hb_font_t *font,
hb_buffer_t *buffer);
HB_INTERNAL hb_bool_t
hb_aat_layout_has_tracking (hb_face_t *face);
HB_INTERNAL void
hb_aat_layout_track (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 */
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