70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
/*
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* Copyright © 2012 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Behdad Esfahbod
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*/
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#ifndef HB_OT_SHAPE_NORMALIZE_PRIVATE_HH
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#define HB_OT_SHAPE_NORMALIZE_PRIVATE_HH
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#include "hb-private.hh"
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/* buffer var allocations, used during the normalization process */
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#define glyph_index() var1.u32
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struct hb_ot_shape_plan_t;
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enum hb_ot_shape_normalization_mode_t {
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HB_OT_SHAPE_NORMALIZATION_MODE_NONE,
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HB_OT_SHAPE_NORMALIZATION_MODE_DECOMPOSED,
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HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS, /* never composes base-to-base */
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HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS_NO_SHORT_CIRCUIT, /* always fully decomposes and then recompose back */
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HB_OT_SHAPE_NORMALIZATION_MODE_DEFAULT = HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS
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};
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HB_INTERNAL void _hb_ot_shape_normalize (const hb_ot_shape_plan_t *shaper,
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hb_buffer_t *buffer,
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hb_font_t *font);
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struct hb_ot_shape_normalize_context_t
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{
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const hb_ot_shape_plan_t *plan;
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hb_buffer_t *buffer;
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hb_font_t *font;
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hb_unicode_funcs_t *unicode;
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bool (*decompose) (const hb_ot_shape_normalize_context_t *c,
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hb_codepoint_t ab,
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hb_codepoint_t *a,
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hb_codepoint_t *b);
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bool (*compose) (const hb_ot_shape_normalize_context_t *c,
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hb_codepoint_t a,
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hb_codepoint_t b,
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hb_codepoint_t *ab);
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};
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#endif /* HB_OT_SHAPE_NORMALIZE_PRIVATE_HH */
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