/src/skia/third_party/externals/harfbuzz/src/hb-ot-shape-complex-khmer.hh

Source (jump to first uncovered line)
/*
 * Copyright © 2018  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_COMPLEX_KHMER_HH
#define HB_OT_SHAPE_COMPLEX_KHMER_HH

#include "hb.hh"

#include "hb-ot-shape-complex-indic.hh"


/* buffer var allocations */
#define khmer_category() indic_category() /* khmer_category_t */


/* Note: This enum is duplicated in the -machine.rl source file.
 * Not sure how to avoid duplication. */
enum khmer_category_t
{
  OT_Robatic = 20,
  OT_Xgroup  = 21,
  OT_Ygroup  = 22,
  //OT_VAbv = 26,
  //OT_VBlw = 27,
  //OT_VPre = 28,
  //OT_VPst = 29,
};

static inline void
set_khmer_properties (hb_glyph_info_t &info)
{
  hb_codepoint_t u = info.codepoint;
  unsigned int type = hb_indic_get_categories (u);
  khmer_category_t cat = (khmer_category_t) (type & 0xFFu);
  indic_position_t pos = (indic_position_t) (type >> 8);


  /*
   * Re-assign category
   *
   * These categories are experimentally extracted from what Uniscribe allows.
   */
  switch (u)
  {
    case 0x179Au:
      cat = (khmer_category_t) OT_Ra;
      break;

    case 0x17CCu:
    case 0x17C9u:
    case 0x17CAu:
      cat = OT_Robatic;
      break;

    case 0x17C6u:
    case 0x17CBu:
    case 0x17CDu:
    case 0x17CEu:
    case 0x17CFu:
    case 0x17D0u:
    case 0x17D1u:
      cat = OT_Xgroup;
      break;

    case 0x17C7u:
    case 0x17C8u:
    case 0x17DDu:
    case 0x17D3u: /* Just guessing. Uniscribe doesn't categorize it. */
      cat = OT_Ygroup;
      break;
  }

  /*
   * Re-assign position.
   */
  if (cat == (khmer_category_t) OT_M)
    switch ((int) pos)
    {
      case POS_PRE_C: cat = (khmer_category_t) OT_VPre; break;
      case POS_BELOW_C: cat = (khmer_category_t) OT_VBlw; break;
      case POS_ABOVE_C: cat = (khmer_category_t) OT_VAbv; break;
      case POS_POST_C:  cat = (khmer_category_t) OT_VPst; break;
      default: assert (0);
    }

  info.khmer_category() = cat;
}


#endif /* HB_OT_SHAPE_COMPLEX_KHMER_HH */

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright © 2018 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_COMPLEX_KHMER_HH
28		#define HB_OT_SHAPE_COMPLEX_KHMER_HH
29
30		#include "hb.hh"
31
32		#include "hb-ot-shape-complex-indic.hh"
33
34
35		/* buffer var allocations */
36	6.02M	#define khmer_category() indic_category() /* khmer_category_t */
37
38
39		/* Note: This enum is duplicated in the -machine.rl source file.
40		* Not sure how to avoid duplication. */
41		enum khmer_category_t
42		{
43		OT_Robatic = 20,
44		OT_Xgroup = 21,
45		OT_Ygroup = 22,
46		//OT_VAbv = 26,
47		//OT_VBlw = 27,
48		//OT_VPre = 28,
49		//OT_VPst = 29,
50		};
51
52		static inline void
53		set_khmer_properties (hb_glyph_info_t &info)
54	1.14M	{
55	1.14M	hb_codepoint_t u = info.codepoint;
56	1.14M	unsigned int type = hb_indic_get_categories (u);
57	1.14M	khmer_category_t cat = (khmer_category_t) (type & 0xFFu);
58	1.14M	indic_position_t pos = (indic_position_t) (type >> 8);
59
60
61		/*
62		* Re-assign category
63		*
64		* These categories are experimentally extracted from what Uniscribe allows.
65		*/
66	1.14M	switch (u)
67	1.14M	{
68	3.51k	case 0x179Au:
69	3.51k	cat = (khmer_category_t) OT_Ra;
70	3.51k	break;
71
72	115	case 0x17CCu:
73	361	case 0x17C9u:
74	472	case 0x17CAu:
75	472	cat = OT_Robatic;
76	472	break;
77
78	38	case 0x17C6u:
79	67	case 0x17CBu:
80	78	case 0x17CDu:
81	130	case 0x17CEu:
82	130	case 0x17CFu:
83	454	case 0x17D0u:
84	523	case 0x17D1u:
85	523	cat = OT_Xgroup;
86	523	break;
87
88	114	case 0x17C7u:
89	163	case 0x17C8u:
90	177	case 0x17DDu:
91	198	case 0x17D3u: /* Just guessing. Uniscribe doesn't categorize it. */
92	198	cat = OT_Ygroup;
93	198	break;
94	1.14M	}
95
96		/*
97		* Re-assign position.
98		*/
99	1.14M	if (cat == (khmer_category_t) OT_M)
100	5.34k	switch ((int) pos)
101	5.34k	{
102	60	case POS_PRE_C: cat = (khmer_category_t) OT_VPre; break;
103	0	case POS_BELOW_C: cat = (khmer_category_t) OT_VBlw; break;
104	3.88k	case POS_ABOVE_C: cat = (khmer_category_t) OT_VAbv; break;
105	1.40k	case POS_POST_C: cat = (khmer_category_t) OT_VPst; break;
106	0	default: assert (0);
107	5.34k	}
108
109	1.14M	info.khmer_category() = cat;
110	1.14M	}
111
112
113		#endif /* HB_OT_SHAPE_COMPLEX_KHMER_HH */

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Created: 2021-08-22 09:07