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/*
* Copyright (C) 2010 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_OT_SHAPE_PRIVATE_HH
#define HB_OT_SHAPE_PRIVATE_HH
#include "hb-private.h"
#include "hb-ot-shape.h"
#include "hb-ot-map-private.hh"
HB_BEGIN_DECLS
/* buffer var allocations */
#define general_category() var1.u8[0] /* unicode general_category (hb_category_t) */
#define combining_class() var1.u8[1] /* unicode combining_class (uint8_t) */
enum hb_ot_complex_shaper_t {
hb_ot_complex_shaper_none,
hb_ot_complex_shaper_arabic
};
struct hb_ot_shape_plan_t
{
hb_ot_map_t map;
hb_ot_complex_shaper_t shaper;
};
struct hb_ot_shape_context_t
{
/* Input to hb_ot_shape_execute() */
hb_ot_shape_plan_t *plan;
hb_font_t *font;
hb_face_t *face;
hb_buffer_t *buffer;
const hb_feature_t *user_features;
unsigned int num_user_features;
/* Transient stuff */
hb_direction_t target_direction;
hb_bool_t applied_substitute_complex;
hb_bool_t applied_position_complex;
};
HB_END_DECLS
#endif /* HB_OT_SHAPE_PRIVATE_HH */
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