/src/harfbuzz/src/hb-ot-shape-normalize.hh

Source
/*
 * Copyright © 2012  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_NORMALIZE_HH
#define HB_OT_SHAPE_NORMALIZE_HH

#include "hb.hh"
#include "hb-unicode.hh"


/* buffer var allocations, used during the normalization process */
#define normalizer_glyph_index()  var1.u32

struct hb_ot_shape_plan_t;

enum hb_ot_shape_normalization_mode_t {
  HB_OT_SHAPE_NORMALIZATION_MODE_NONE,
  HB_OT_SHAPE_NORMALIZATION_MODE_DECOMPOSED,
  HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS, /* Never composes base-to-base */
  HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS_NO_SHORT_CIRCUIT, /* Always fully decomposes and then recompose back */

  HB_OT_SHAPE_NORMALIZATION_MODE_AUTO, /* See hb-ot-shape-normalize.cc for logic. */
  HB_OT_SHAPE_NORMALIZATION_MODE_DEFAULT = HB_OT_SHAPE_NORMALIZATION_MODE_AUTO
};

HB_INTERNAL void _hb_ot_shape_normalize (const hb_ot_shape_plan_t *shaper,
           hb_buffer_t *buffer,
           hb_font_t *font);


struct hb_ot_shape_normalize_context_t
{
  static bool
  decompose_unicode (const hb_ot_shape_normalize_context_t *c,
         hb_codepoint_t  ab,
         hb_codepoint_t *a,
         hb_codepoint_t *b)
  {
    return (bool) c->unicode->decompose (ab, a, b);
  }

  static bool
  compose_unicode (const hb_ot_shape_normalize_context_t *c,
       hb_codepoint_t  a,
       hb_codepoint_t  b,
       hb_codepoint_t *ab)
  {
    return (bool) c->unicode->compose (a, b, ab);
  }

  void
  override_decompose_and_compose (bool (*decompose) (const hb_ot_shape_normalize_context_t *c,
                  hb_codepoint_t  ab,
                  hb_codepoint_t *a,
                  hb_codepoint_t *b),
          bool (*compose) (const hb_ot_shape_normalize_context_t *c,
               hb_codepoint_t  a,
               hb_codepoint_t  b,
               hb_codepoint_t *ab))
  {
    this->decompose = decompose ? decompose : decompose_unicode;
    this->compose = compose ? compose : compose_unicode;
  }

  const hb_ot_shape_plan_t *plan;
  hb_buffer_t *buffer;
  hb_font_t *font;
  hb_unicode_funcs_t *unicode;
  bool (*decompose) (const hb_ot_shape_normalize_context_t *c,
         hb_codepoint_t  ab,
         hb_codepoint_t *a,
         hb_codepoint_t *b);
  bool (*compose) (const hb_ot_shape_normalize_context_t *c,
       hb_codepoint_t  a,
       hb_codepoint_t  b,
       hb_codepoint_t *ab);
};


#endif /* HB_OT_SHAPE_NORMALIZE_HH */

Line	Count	Source
1		/*
2		* Copyright © 2012 Google, Inc.
3		*
4		* This is part of HarfBuzz, a text shaping library.
5		*
6		* Permission is hereby granted, without written agreement and without
7		* license or royalty fees, to use, copy, modify, and distribute this
8		* software and its documentation for any purpose, provided that the
9		* above copyright notice and the following two paragraphs appear in
10		* all copies of this software.
11		*
12		* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13		* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14		* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15		* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
16		* DAMAGE.
17		*
18		* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19		* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20		* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
21		* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22		* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
23		*
24		* Google Author(s): Behdad Esfahbod
25		*/
26
27		#ifndef HB_OT_SHAPE_NORMALIZE_HH
28		#define HB_OT_SHAPE_NORMALIZE_HH
29
30		#include "hb.hh"
31		#include "hb-unicode.hh"
32
33
34		/* buffer var allocations, used during the normalization process */
35	938k	#define normalizer_glyph_index() var1.u32
36
37		struct hb_ot_shape_plan_t;
38
39		enum hb_ot_shape_normalization_mode_t {
40		HB_OT_SHAPE_NORMALIZATION_MODE_NONE,
41		HB_OT_SHAPE_NORMALIZATION_MODE_DECOMPOSED,
42		HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS, /* Never composes base-to-base */
43		HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS_NO_SHORT_CIRCUIT, /* Always fully decomposes and then recompose back */
44
45		HB_OT_SHAPE_NORMALIZATION_MODE_AUTO, /* See hb-ot-shape-normalize.cc for logic. */
46		HB_OT_SHAPE_NORMALIZATION_MODE_DEFAULT = HB_OT_SHAPE_NORMALIZATION_MODE_AUTO
47		};
48
49		HB_INTERNAL void _hb_ot_shape_normalize (const hb_ot_shape_plan_t *shaper,
50		hb_buffer_t *buffer,
51		hb_font_t *font);
52
53
54		struct hb_ot_shape_normalize_context_t
55		{
56		static bool
57		decompose_unicode (const hb_ot_shape_normalize_context_t *c,
58		hb_codepoint_t ab,
59		hb_codepoint_t *a,
60		hb_codepoint_t *b)
61	21.4k	{
62	21.4k	return (bool) c->unicode->decompose (ab, a, b);
63	21.4k	}
64
65		static bool
66		compose_unicode (const hb_ot_shape_normalize_context_t *c,
67		hb_codepoint_t a,
68		hb_codepoint_t b,
69		hb_codepoint_t *ab)
70	0	{
71	0	return (bool) c->unicode->compose (a, b, ab);
72	0	}
73
74		void
75		override_decompose_and_compose (bool (decompose) (const hb_ot_shape_normalize_context_t c,
76		hb_codepoint_t ab,
77		hb_codepoint_t *a,
78		hb_codepoint_t *b),
79		bool (compose) (const hb_ot_shape_normalize_context_t c,
80		hb_codepoint_t a,
81		hb_codepoint_t b,
82		hb_codepoint_t *ab))
83	108k	{
84	108k	this->decompose = decompose ? decompose : decompose_unicode;
85	108k	this->compose = compose ? compose : compose_unicode;
86	108k	}
87
88		const hb_ot_shape_plan_t *plan;
89		hb_buffer_t *buffer;
90		hb_font_t *font;
91		hb_unicode_funcs_t *unicode;
92		bool (decompose) (const hb_ot_shape_normalize_context_t c,
93		hb_codepoint_t ab,
94		hb_codepoint_t *a,
95		hb_codepoint_t *b);
96		bool (compose) (const hb_ot_shape_normalize_context_t c,
97		hb_codepoint_t a,
98		hb_codepoint_t b,
99		hb_codepoint_t *ab);
100		};
101
102
103		#endif /* HB_OT_SHAPE_NORMALIZE_HH */

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Created: 2025-11-04 06:44