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msvcrt: Add _mbctokata implementation.
[wine.git] / dlls / dwrite / analyzer.c
blob62a6b15dcfbc23d4e288247a54e1b4cad9c59854
1 /*
2 * Text analyzer
3 *
4 * Copyright 2011 Aric Stewart for CodeWeavers
5 * Copyright 2012, 2014 Nikolay Sivov for CodeWeavers
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #define COBJMACROS
23
24 #include "dwrite_private.h"
25 #include "scripts.h"
26
27 WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
28
29 extern const unsigned short wine_linebreak_table[];
30 extern const unsigned short wine_scripts_table[];
31
32 struct dwritescript_properties {
33 DWRITE_SCRIPT_PROPERTIES props;
34 UINT32 scripttag; /* OpenType script tag */
35 UINT32 scriptalttag; /* Version 2 tag, 0 is not defined */
36 BOOL is_complex;
37 const struct scriptshaping_ops *ops;
38 };
39
40 #define _OT(a,b,c,d) DWRITE_MAKE_OPENTYPE_TAG(a,b,c,d)
41
42 /* NOTE: keep this array synced with script ids from scripts.h */
43 static const struct dwritescript_properties dwritescripts_properties[Script_LastId+1] = {
44 { /* Zzzz */ { 0x7a7a7a5a, 999, 15, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
45 { /* Zyyy */ { 0x7979795a, 998, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
46 { /* Arab */ { 0x62617241, 160, 8, 0x0640, 0, 1, 0, 0, 0, 1, 1 }, _OT('a','r','a','b'), 0, TRUE },
47 { /* Armn */ { 0x6e6d7241, 230, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('a','r','m','n') },
48 { /* Avst */ { 0x74737641, 134, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('a','v','s','t') },
49 { /* Bali */ { 0x696c6142, 360, 15, 0x0020, 1, 0, 1, 0, 0, 0, 0 }, _OT('b','a','l','i') },
50 { /* Bamu */ { 0x756d6142, 435, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('b','a','m','u') },
51 { /* Bass */ { 0x73736142, 259, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
52 { /* Batk */ { 0x6b746142, 365, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('b','a','t','k') },
53 { /* Beng */ { 0x676e6542, 325, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, _OT('b','e','n','g'), _OT('b','n','g','2'), TRUE },
54 { /* Bopo */ { 0x6f706f42, 285, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('b','o','p','o') },
55 { /* Brah */ { 0x68617242, 300, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('b','r','a','h') },
56 { /* Brai */ { 0x69617242, 570, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('b','r','a','i'), 0, TRUE },
57 { /* Bugi */ { 0x69677542, 367, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('b','u','g','i') },
58 { /* Buhd */ { 0x64687542, 372, 8, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('b','u','h','d') },
59 { /* Cans */ { 0x736e6143, 440, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('c','a','n','s'), 0, TRUE },
60 { /* Cari */ { 0x69726143, 201, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('c','a','r','i') },
61 { /* Aghb */ { 0x62686741, 239, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
62 { /* Cakm */ { 0x6d6b6143, 349, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('c','a','k','m') },
63 { /* Cham */ { 0x6d616843, 358, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('c','h','a','m') },
64 { /* Cher */ { 0x72656843, 445, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('c','h','e','r'), 0, TRUE },
65 { /* Copt */ { 0x74706f43, 204, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('c','o','p','t') },
66 { /* Xsux */ { 0x78757358, 20, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('x','s','u','x') },
67 { /* Cprt */ { 0x74727043, 403, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('c','p','r','t') },
68 { /* Cyrl */ { 0x6c727943, 220, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('c','y','r','l') },
69 { /* Dsrt */ { 0x74727344, 250, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('d','s','r','t'), 0, TRUE },
70 { /* Deva */ { 0x61766544, 315, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, _OT('d','e','v','a'), _OT('d','e','v','2'), TRUE },
71 { /* Dupl */ { 0x6c707544, 755, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
72 { /* Egyp */ { 0x70796745, 50, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('e','g','y','p') },
73 { /* Elba */ { 0x61626c45, 226, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
74 { /* Ethi */ { 0x69687445, 430, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('e','t','h','i'), 0, TRUE },
75 { /* Geor */ { 0x726f6547, 240, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('g','e','o','r') },
76 { /* Glag */ { 0x67616c47, 225, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('g','l','a','g') },
77 { /* Goth */ { 0x68746f47, 206, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('g','o','t','h') },
78 { /* Gran */ { 0x6e617247, 343, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
79 { /* Grek */ { 0x6b657247, 200, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('g','r','e','k') },
80 { /* Gujr */ { 0x726a7547, 320, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('g','u','j','r'), _OT('g','j','r','2'), TRUE },
81 { /* Guru */ { 0x75727547, 310, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, _OT('g','u','r','u'), _OT('g','u','r','2'), TRUE },
82 { /* Hani */ { 0x696e6148, 500, 8, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('h','a','n','i') },
83 { /* Hang */ { 0x676e6148, 286, 8, 0x0020, 1, 1, 1, 1, 0, 0, 0 }, _OT('h','a','n','g'), 0, TRUE },
84 { /* Hano */ { 0x6f6e6148, 371, 8, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('h','a','n','o') },
85 { /* Hebr */ { 0x72626548, 125, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('h','e','b','r'), 0, TRUE },
86 { /* Hira */ { 0x61726948, 410, 8, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('k','a','n','a') },
87 { /* Armi */ { 0x696d7241, 124, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('a','r','m','i') },
88 { /* Phli */ { 0x696c6850, 131, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('p','h','l','i') },
89 { /* Prti */ { 0x69747250, 130, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('p','r','t','i') },
90 { /* Java */ { 0x6176614a, 361, 15, 0x0020, 1, 0, 1, 0, 0, 0, 0 }, _OT('j','a','v','a') },
91 { /* Kthi */ { 0x6968744b, 317, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, _OT('k','t','h','i') },
92 { /* Knda */ { 0x61646e4b, 345, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('k','n','d','a'), _OT('k','n','d','2'), TRUE },
93 { /* Kana */ { 0x616e614b, 411, 8, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('k','a','n','a') },
94 { /* Kali */ { 0x696c614b, 357, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('k','a','l','i') },
95 { /* Khar */ { 0x7261684b, 305, 15, 0x0020, 1, 0, 1, 0, 0, 0, 0 }, _OT('k','h','a','r') },
96 { /* Khmr */ { 0x726d684b, 355, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 }, _OT('k','h','m','r'), 0, TRUE },
97 { /* Khoj */ { 0x6a6f684b, 322, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
98 { /* Sind */ { 0x646e6953, 318, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
99 { /* Laoo */ { 0x6f6f614c, 356, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 }, _OT('l','a','o',' '), 0, TRUE },
100 { /* Latn */ { 0x6e74614c, 215, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('l','a','t','n'), 0, FALSE, &latn_shaping_ops },
101 { /* Lepc */ { 0x6370654c, 335, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('l','e','p','c') },
102 { /* Limb */ { 0x626d694c, 336, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('l','i','m','b') },
103 { /* Lina */ { 0x616e694c, 400, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
104 { /* Linb */ { 0x626e694c, 401, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('l','i','n','b') },
105 { /* Lisu */ { 0x7573694c, 399, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('l','i','s','u') },
106 { /* Lyci */ { 0x6963794c, 202, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('l','y','c','i') },
107 { /* Lydi */ { 0x6964794c, 116, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('l','y','d','i') },
108 { /* Mahj */ { 0x6a68614d, 314, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
109 { /* Mlym */ { 0x6d796c4d, 347, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('m','l','y','m'), _OT('m','l','m','2'), TRUE },
110 { /* Mand */ { 0x646e614d, 140, 8, 0x0640, 0, 1, 0, 0, 0, 1, 1 }, _OT('m','a','n','d') },
111 { /* Mani */ { 0x696e614d, 139, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
112 { /* Mtei */ { 0x6965744d, 337, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('m','t','e','i') },
113 { /* Mend */ { 0x646e654d, 438, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
114 { /* Merc */ { 0x6372654d, 101, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('m','e','r','c') },
115 { /* Mero */ { 0x6f72654d, 100, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('m','e','r','o') },
116 { /* Plrd */ { 0x64726c50, 282, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
117 { /* Modi */ { 0x69646f4d, 324, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
118 { /* Mong */ { 0x676e6f4d, 145, 8, 0x0020, 0, 1, 0, 0, 0, 1, 1 }, _OT('m','o','n','g'), 0, TRUE },
119 { /* Mroo */ { 0x6f6f724d, 199, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
120 { /* Mymr */ { 0x726d794d, 350, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('m','y','m','r'), 0, TRUE },
121 { /* Nbat */ { 0x7461624e, 159, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
122 { /* Talu */ { 0x756c6154, 354, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','a','l','u'), 0, TRUE },
123 { /* Nkoo */ { 0x6f6f6b4e, 165, 8, 0x0020, 0, 1, 0, 0, 0, 1, 1 }, _OT('n','k','o',' '), 0, TRUE },
124 { /* Ogam */ { 0x6d61674f, 212, 1, 0x1680, 0, 1, 0, 0, 0, 1, 0 }, _OT('o','g','a','m'), 0, TRUE },
125 { /* Olck */ { 0x6b636c4f, 261, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('o','l','c','k') },
126 { /* Ital */ { 0x6c617449, 210, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('i','t','a','l') },
127 { /* Narb */ { 0x6272614e, 106, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
128 { /* Perm */ { 0x6d726550, 227, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
129 { /* Xpeo */ { 0x6f657058, 30, 1, 0x0020, 0, 1, 1, 1, 0, 0, 0 }, _OT('x','p','e','o'), 0, TRUE },
130 { /* Sarb */ { 0x62726153, 105, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('s','a','r','b') },
131 { /* Orkh */ { 0x686b724f, 175, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('o','r','k','h') },
132 { /* Orya */ { 0x6179724f, 327, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('o','r','y','a'), _OT('o','r','y','2'), TRUE },
133 { /* Osma */ { 0x616d734f, 260, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('o','s','m','a'), 0, TRUE },
134 { /* Hmng */ { 0x676e6d48, 450, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
135 { /* Palm */ { 0x6d6c6150, 126, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
136 { /* Pauc */ { 0x63756150, 263, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
137 { /* Phag */ { 0x67616850, 331, 8, 0x0020, 0, 1, 0, 0, 0, 1, 1 }, _OT('p','h','a','g'), 0, TRUE },
138 { /* Phnx */ { 0x786e6850, 115, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('p','h','n','x') },
139 { /* Phlp */ { 0x706c6850, 132, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
140 { /* Rjng */ { 0x676e6a52, 363, 8, 0x0020, 1, 0, 1, 0, 0, 0, 0 }, _OT('r','j','n','g') },
141 { /* Runr */ { 0x726e7552, 211, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('r','u','n','r'), 0, TRUE },
142 { /* Samr */ { 0x726d6153, 123, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('s','a','m','r') },
143 { /* Saur */ { 0x72756153, 344, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('s','a','u','r') },
144 { /* Shrd */ { 0x64726853, 319, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('s','h','r','d') },
145 { /* Shaw */ { 0x77616853, 281, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('s','h','a','w') },
146 { /* Sidd */ { 0x64646953, 302, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
147 { /* Sinh */ { 0x686e6953, 348, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('s','i','n','h'), 0, TRUE },
148 { /* Sora */ { 0x61726f53, 398, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('s','o','r','a') },
149 { /* Sund */ { 0x646e7553, 362, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('s','u','n','d') },
150 { /* Sylo */ { 0x6f6c7953, 316, 8, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, _OT('s','y','l','o') },
151 { /* Syrc */ { 0x63727953, 135, 8, 0x0640, 0, 1, 0, 0, 0, 1, 1 }, _OT('s','y','r','c'), 0, TRUE },
152 { /* Tglg */ { 0x676c6754, 370, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('t','g','l','g') },
153 { /* Tagb */ { 0x62676154, 373, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('t','a','g','b') },
154 { /* Tale */ { 0x656c6154, 353, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('t','a','l','e'), 0, TRUE },
155 { /* Lana */ { 0x616e614c, 351, 8, 0x0020, 1, 0, 1, 0, 0, 0, 0 }, _OT('l','a','n','a') },
156 { /* Tavt */ { 0x74766154, 359, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 }, _OT('t','a','v','t') },
157 { /* Takr */ { 0x726b6154, 321, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('t','a','k','r') },
158 { /* Taml */ { 0x6c6d6154, 346, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','a','m','l'), _OT('t','m','l','2'), TRUE },
159 { /* Telu */ { 0x756c6554, 340, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','e','l','u'), _OT('t','e','l','2'), TRUE },
160 { /* Thaa */ { 0x61616854, 170, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','h','a','a'), 0, TRUE },
161 { /* Thai */ { 0x69616854, 352, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 }, _OT('t','h','a','i'), 0, TRUE },
162 { /* Tibt */ { 0x74626954, 330, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','i','b','t'), 0, TRUE },
163 { /* Tfng */ { 0x676e6654, 120, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','f','n','g'), 0, TRUE },
164 { /* Tirh */ { 0x68726954, 326, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
165 { /* Ugar */ { 0x72616755, 40, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('u','g','a','r') },
166 { /* Vaii */ { 0x69696156, 470, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('v','a','i',' '), 0, TRUE },
167 { /* Wara */ { 0x61726157, 262, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
168 { /* Yiii */ { 0x69696959, 460, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('y','i',' ',' '), 0, TRUE }
169 };
170 #undef _OT
171
172 struct dwrite_numbersubstitution {
173 IDWriteNumberSubstitution IDWriteNumberSubstitution_iface;
174 LONG ref;
175
176 DWRITE_NUMBER_SUBSTITUTION_METHOD method;
177 WCHAR *locale;
178 BOOL ignore_user_override;
179 };
180
181 static inline struct dwrite_numbersubstitution *impl_from_IDWriteNumberSubstitution(IDWriteNumberSubstitution *iface)
182 {
183 return CONTAINING_RECORD(iface, struct dwrite_numbersubstitution, IDWriteNumberSubstitution_iface);
184 }
185
186 static inline UINT32 decode_surrogate_pair(const WCHAR *str, UINT32 index, UINT32 end)
187 {
188 if (index < end-1 && IS_SURROGATE_PAIR(str[index], str[index+1])) {
189 UINT32 ch = 0x10000 + ((str[index] - 0xd800) << 10) + (str[index+1] - 0xdc00);
190 TRACE("surrogate pair (%x %x) => %x\n", str[index], str[index+1], ch);
191 return ch;
192 }
193 return 0;
194 }
195
196 static inline UINT16 get_char_script(WCHAR c)
197 {
198 UINT16 script = get_table_entry(wine_scripts_table, c);
199 if (script == Script_Unknown) {
200 WORD type;
201 if (GetStringTypeW(CT_CTYPE1, &c, 1, &type) && (type & C1_CNTRL))
202 script = Script_Common;
203 }
204 return script;
205 }
206
207 static HRESULT analyze_script(const WCHAR *text, UINT32 len, IDWriteTextAnalysisSink *sink)
208 {
209 DWRITE_SCRIPT_ANALYSIS sa;
210 UINT32 pos, i, length;
211
212 if (!len) return S_OK;
213
214 sa.script = get_char_script(*text);
215
216 pos = 0;
217 length = 1;
218
219 for (i = 1; i < len; i++)
220 {
221 UINT16 script = get_char_script(text[i]);
222
223 /* Unknown type is ignored when preceded or followed by another script */
224 if (sa.script == Script_Unknown) sa.script = script;
225 if (script == Script_Unknown && sa.script != Script_Common) script = sa.script;
226 /* this is a length of a sequence to be reported next */
227 if (sa.script == script) length++;
228
229 if (sa.script != script)
230 {
231 HRESULT hr;
232
233 sa.shapes = sa.script != Script_Common ? DWRITE_SCRIPT_SHAPES_DEFAULT : DWRITE_SCRIPT_SHAPES_NO_VISUAL;
234 hr = IDWriteTextAnalysisSink_SetScriptAnalysis(sink, pos, length, &sa);
235 if (FAILED(hr)) return hr;
236 pos = i;
237 length = 1;
238 sa.script = script;
239 }
240 }
241
242 /* 1 length case or normal completion call */
243 sa.shapes = sa.script != Script_Common ? DWRITE_SCRIPT_SHAPES_DEFAULT : DWRITE_SCRIPT_SHAPES_NO_VISUAL;
244 return IDWriteTextAnalysisSink_SetScriptAnalysis(sink, pos, length, &sa);
245 }
246
247 struct linebreaking_state {
248 DWRITE_LINE_BREAKPOINT *breakpoints;
249 UINT32 count;
250 };
251
252 enum BreakConditionLocation {
253 BreakConditionBefore,
254 BreakConditionAfter
255 };
256
257 enum linebreaking_classes {
258 b_BK = 1,
259 b_CR,
260 b_LF,
261 b_CM,
262 b_SG,
263 b_GL,
264 b_CB,
265 b_SP,
266 b_ZW,
267 b_NL,
268 b_WJ,
269 b_JL,
270 b_JV,
271 b_JT,
272 b_H2,
273 b_H3,
274 b_XX,
275 b_OP,
276 b_CL,
277 b_CP,
278 b_QU,
279 b_NS,
280 b_EX,
281 b_SY,
282 b_IS,
283 b_PR,
284 b_PO,
285 b_NU,
286 b_AL,
287 b_ID,
288 b_IN,
289 b_HY,
290 b_BB,
291 b_BA,
292 b_SA,
293 b_AI,
294 b_B2,
295 b_HL,
296 b_CJ,
297 b_RI
298 };
299
300 /* "Can break" is a weak condition, stronger "may not break" and "must break" override it. Initially all conditions are
301 set to "can break" and could only be changed once. */
302 static inline void set_break_condition(UINT32 pos, enum BreakConditionLocation location, DWRITE_BREAK_CONDITION condition,
303 struct linebreaking_state *state)
304 {
305 if (location == BreakConditionBefore) {
306 if (state->breakpoints[pos].breakConditionBefore != DWRITE_BREAK_CONDITION_CAN_BREAK)
307 return;
308 state->breakpoints[pos].breakConditionBefore = condition;
309 if (pos > 0)
310 state->breakpoints[pos-1].breakConditionAfter = condition;
311 }
312 else {
313 if (state->breakpoints[pos].breakConditionAfter != DWRITE_BREAK_CONDITION_CAN_BREAK)
314 return;
315 state->breakpoints[pos].breakConditionAfter = condition;
316 if (pos + 1 < state->count)
317 state->breakpoints[pos+1].breakConditionBefore = condition;
318 }
319 }
320
321 static HRESULT analyze_linebreaks(const WCHAR *text, UINT32 count, DWRITE_LINE_BREAKPOINT *breakpoints)
322 {
323 struct linebreaking_state state;
324 short *break_class;
325 int i, j;
326
327 break_class = heap_alloc(count*sizeof(short));
328 if (!break_class)
329 return E_OUTOFMEMORY;
330
331 state.breakpoints = breakpoints;
332 state.count = count;
333
334 /* LB31 - allow breaks everywhere. It will be overridden if needed as
335 other rules dictate. */
336 for (i = 0; i < count; i++)
337 {
338 break_class[i] = get_table_entry(wine_linebreak_table, text[i]);
339
340 breakpoints[i].breakConditionBefore = DWRITE_BREAK_CONDITION_CAN_BREAK;
341 breakpoints[i].breakConditionAfter = DWRITE_BREAK_CONDITION_CAN_BREAK;
342 breakpoints[i].isWhitespace = break_class[i] == b_BK || break_class[i] == b_ZW || break_class[i] == b_SP || isspaceW(text[i]);
343 breakpoints[i].isSoftHyphen = FALSE;
344 breakpoints[i].padding = 0;
345
346 /* LB1 - resolve some classes. TODO: use external algorithms for these classes. */
347 switch (break_class[i])
348 {
349 case b_AI:
350 case b_SA:
351 case b_SG:
352 case b_XX:
353 break_class[i] = b_AL;
354 break;
355 case b_CJ:
356 break_class[i] = b_NS;
357 break;
358 }
359 }
360
361 /* LB2 - never break at the start */
362 set_break_condition(0, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
363 /* LB3 - always break at the end. This one is ignored. */
364
365 for (i = 0; i < count; i++)
366 {
367 switch (break_class[i])
368 {
369 /* LB4 - LB6 */
370 case b_CR:
371 /* LB5 - don't break CR x LF */
372 if (i < count-1 && break_class[i+1] == b_LF)
373 {
374 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
375 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
376 break;
377 }
378 case b_LF:
379 case b_NL:
380 case b_BK:
381 /* LB4 - LB5 - always break after hard breaks */
382 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MUST_BREAK, &state);
383 /* LB6 - do not break before hard breaks */
384 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
385 break;
386 /* LB7 - do not break before spaces */
387 case b_SP:
388 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
389 break;
390 case b_ZW:
391 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
392 /* LB8 - break before character after zero-width space, skip spaces in-between */
393 while (i < count-1 && break_class[i+1] == b_SP)
394 i++;
395 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
396 break;
397 }
398 }
399
400 /* LB9 - LB10 */
401 for (i = 0; i < count; i++)
402 {
403 if (break_class[i] == b_CM)
404 {
405 if (i > 0)
406 {
407 switch (break_class[i-1])
408 {
409 case b_SP:
410 case b_BK:
411 case b_CR:
412 case b_LF:
413 case b_NL:
414 case b_ZW:
415 break_class[i] = b_AL;
416 break;
417 default:
418 break_class[i] = break_class[i-1];
419 }
420 }
421 else break_class[i] = b_AL;
422 }
423 }
424
425 for (i = 0; i < count; i++)
426 {
427 switch (break_class[i])
428 {
429 /* LB11 - don't break before and after word joiner */
430 case b_WJ:
431 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
432 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
433 break;
434 /* LB12 - don't break after glue */
435 case b_GL:
436 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
437 /* LB12a */
438 if (i > 0)
439 {
440 if (break_class[i-1] != b_SP && break_class[i-1] != b_BA && break_class[i-1] != b_HY)
441 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
442 }
443 break;
444 /* LB13 */
445 case b_CL:
446 case b_CP:
447 case b_EX:
448 case b_IS:
449 case b_SY:
450 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
451 break;
452 /* LB14 */
453 case b_OP:
454 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
455 while (i < count-1 && break_class[i+1] == b_SP) {
456 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
457 i++;
458 }
459 break;
460 /* LB15 */
461 case b_QU:
462 j = i+1;
463 while (j < count-1 && break_class[j] == b_SP)
464 j++;
465 if (break_class[j] == b_OP)
466 for (; j > i; j--)
467 set_break_condition(j, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
468 break;
469 /* LB16 */
470 case b_NS:
471 j = i-1;
472 while(j > 0 && break_class[j] == b_SP)
473 j--;
474 if (break_class[j] == b_CL || break_class[j] == b_CP)
475 for (j++; j <= i; j++)
476 set_break_condition(j, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
477 break;
478 /* LB17 */
479 case b_B2:
480 j = i+1;
481 while (j < count && break_class[j] == b_SP)
482 j++;
483 if (break_class[j] == b_B2)
484 for (; j > i; j--)
485 set_break_condition(j, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
486 break;
487 }
488 }
489
490 for (i = 0; i < count; i++)
491 {
492 switch(break_class[i])
493 {
494 /* LB18 - break is allowed after space */
495 case b_SP:
496 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
497 break;
498 /* LB19 - don't break before or after quotation mark */
499 case b_QU:
500 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
501 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
502 break;
503 /* LB20 */
504 case b_CB:
505 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
506 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
507 break;
508 /* LB21 */
509 case b_BA:
510 case b_HY:
511 case b_NS:
512 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
513 break;
514 case b_BB:
515 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
516 break;
517 /* LB21a */
518 case b_HL:
519 if (i < count-2)
520 switch (break_class[i+1])
521 {
522 case b_HY:
523 case b_BA:
524 set_break_condition(i+1, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
525 }
526 break;
527 /* LB22 */
528 case b_IN:
529 if (i > 0)
530 {
531 switch (break_class[i-1])
532 {
533 case b_AL:
534 case b_HL:
535 case b_ID:
536 case b_IN:
537 case b_NU:
538 set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
539 }
540 }
541 break;
542 }
543
544 if (i < count-1)
545 {
546 /* LB23 */
547 if ((break_class[i] == b_ID && break_class[i+1] == b_PO) ||
548 (break_class[i] == b_AL && break_class[i+1] == b_NU) ||
549 (break_class[i] == b_HL && break_class[i+1] == b_NU) ||
550 (break_class[i] == b_NU && break_class[i+1] == b_AL) ||
551 (break_class[i] == b_NU && break_class[i+1] == b_HL))
552 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
553 /* LB24 */
554 if ((break_class[i] == b_PR && break_class[i+1] == b_ID) ||
555 (break_class[i] == b_PR && break_class[i+1] == b_AL) ||
556 (break_class[i] == b_PR && break_class[i+1] == b_HL) ||
557 (break_class[i] == b_PO && break_class[i+1] == b_AL) ||
558 (break_class[i] == b_PO && break_class[i+1] == b_HL))
559 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
560
561 /* LB25 */
562 if ((break_class[i] == b_CL && break_class[i+1] == b_PO) ||
563 (break_class[i] == b_CP && break_class[i+1] == b_PO) ||
564 (break_class[i] == b_CL && break_class[i+1] == b_PR) ||
565 (break_class[i] == b_CP && break_class[i+1] == b_PR) ||
566 (break_class[i] == b_NU && break_class[i+1] == b_PO) ||
567 (break_class[i] == b_NU && break_class[i+1] == b_PR) ||
568 (break_class[i] == b_PO && break_class[i+1] == b_OP) ||
569 (break_class[i] == b_PO && break_class[i+1] == b_NU) ||
570 (break_class[i] == b_PR && break_class[i+1] == b_OP) ||
571 (break_class[i] == b_PR && break_class[i+1] == b_NU) ||
572 (break_class[i] == b_HY && break_class[i+1] == b_NU) ||
573 (break_class[i] == b_IS && break_class[i+1] == b_NU) ||
574 (break_class[i] == b_NU && break_class[i+1] == b_NU) ||
575 (break_class[i] == b_SY && break_class[i+1] == b_NU))
576 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
577
578 /* LB26 */
579 if (break_class[i] == b_JL)
580 {
581 switch (break_class[i+1])
582 {
583 case b_JL:
584 case b_JV:
585 case b_H2:
586 case b_H3:
587 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
588 }
589 }
590 if ((break_class[i] == b_JV || break_class[i] == b_H2) &&
591 (break_class[i+1] == b_JV || break_class[i+1] == b_JT))
592 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
593 if ((break_class[i] == b_JT || break_class[i] == b_H3) &&
594 break_class[i+1] == b_JT)
595 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
596
597 /* LB27 */
598 switch (break_class[i])
599 {
600 case b_JL:
601 case b_JV:
602 case b_JT:
603 case b_H2:
604 case b_H3:
605 if (break_class[i+1] == b_IN || break_class[i+1] == b_PO)
606 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
607 }
608 if (break_class[i] == b_PO)
609 {
610 switch (break_class[i+1])
611 {
612 case b_JL:
613 case b_JV:
614 case b_JT:
615 case b_H2:
616 case b_H3:
617 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
618 }
619 }
620
621 /* LB28 */
622 if ((break_class[i] == b_AL && break_class[i+1] == b_AL) ||
623 (break_class[i] == b_AL && break_class[i+1] == b_HL) ||
624 (break_class[i] == b_HL && break_class[i+1] == b_AL) ||
625 (break_class[i] == b_HL && break_class[i+1] == b_HL))
626 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
627
628 /* LB29 */
629 if ((break_class[i] == b_IS && break_class[i+1] == b_AL) ||
630 (break_class[i] == b_IS && break_class[i+1] == b_HL))
631 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
632
633 /* LB30 */
634 if ((break_class[i] == b_AL || break_class[i] == b_HL || break_class[i] == b_NU) &&
635 break_class[i+1] == b_OP)
636 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
637 if (break_class[i] == b_CP &&
638 (break_class[i+1] == b_AL || break_class[i] == b_HL || break_class[i] == b_NU))
639 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
640
641 /* LB30a */
642 if (break_class[i] == b_RI && break_class[i+1] == b_RI)
643 set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
644 }
645 }
646
647 heap_free(break_class);
648 return S_OK;
649 }
650
651 static HRESULT WINAPI dwritetextanalyzer_QueryInterface(IDWriteTextAnalyzer2 *iface, REFIID riid, void **obj)
652 {
653 TRACE("(%s %p)\n", debugstr_guid(riid), obj);
654
655 if (IsEqualIID(riid, &IID_IDWriteTextAnalyzer2) ||
656 IsEqualIID(riid, &IID_IDWriteTextAnalyzer1) ||
657 IsEqualIID(riid, &IID_IDWriteTextAnalyzer) ||
658 IsEqualIID(riid, &IID_IUnknown))
659 {
660 *obj = iface;
661 return S_OK;
662 }
663
664 *obj = NULL;
665 return E_NOINTERFACE;
666
667 }
668
669 static ULONG WINAPI dwritetextanalyzer_AddRef(IDWriteTextAnalyzer2 *iface)
670 {
671 return 2;
672 }
673
674 static ULONG WINAPI dwritetextanalyzer_Release(IDWriteTextAnalyzer2 *iface)
675 {
676 return 1;
677 }
678
679 static HRESULT WINAPI dwritetextanalyzer_AnalyzeScript(IDWriteTextAnalyzer2 *iface,
680 IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
681 {
682 const WCHAR *text;
683 HRESULT hr;
684 UINT32 len;
685
686 TRACE("(%p %u %u %p)\n", source, position, length, sink);
687
688 hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, position, &text, &len);
689 if (FAILED(hr)) return hr;
690
691 return analyze_script(text, len, sink);
692 }
693
694 static HRESULT WINAPI dwritetextanalyzer_AnalyzeBidi(IDWriteTextAnalyzer2 *iface,
695 IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
696 {
697 UINT8 *levels = NULL, *explicit = NULL;
698 UINT8 baselevel, level, explicit_level;
699 WCHAR *buff = NULL;
700 const WCHAR *text;
701 UINT32 len, pos, i;
702 HRESULT hr;
703
704 TRACE("(%p %u %u %p)\n", source, position, length, sink);
705
706 if (length == 0)
707 return S_OK;
708
709 /* get some, check for length */
710 text = NULL;
711 len = 0;
712 hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, position, &text, &len);
713 if (FAILED(hr)) return hr;
714
715 if (len < length) {
716 UINT32 read;
717
718 buff = heap_alloc(length*sizeof(WCHAR));
719 if (!buff)
720 return E_OUTOFMEMORY;
721 memcpy(buff, text, len*sizeof(WCHAR));
722 read = len;
723
724 while (read < length && text) {
725 text = NULL;
726 len = 0;
727 hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, read, &text, &len);
728 if (FAILED(hr))
729 goto done;
730 memcpy(&buff[read], text, min(len, length-read)*sizeof(WCHAR));
731 read += len;
732 }
733
734 text = buff;
735 }
736
737 levels = heap_alloc(length*sizeof(*levels));
738 explicit = heap_alloc(length*sizeof(*explicit));
739
740 if (!levels || !explicit) {
741 hr = E_OUTOFMEMORY;
742 goto done;
743 }
744
745 baselevel = IDWriteTextAnalysisSource_GetParagraphReadingDirection(source);
746 hr = bidi_computelevels(text, length, baselevel, explicit, levels);
747 if (FAILED(hr))
748 goto done;
749
750 level = levels[0];
751 explicit_level = explicit[0];
752 pos = 0;
753 for (i = 1; i < length; i++) {
754 if (levels[i] != level || explicit[i] != explicit_level) {
755 hr = IDWriteTextAnalysisSink_SetBidiLevel(sink, pos, i - pos, explicit_level, level);
756 if (FAILED(hr))
757 break;
758 level = levels[i];
759 explicit_level = explicit[i];
760 pos = i;
761 }
762
763 if (i == length - 1)
764 hr = IDWriteTextAnalysisSink_SetBidiLevel(sink, pos, length - pos, explicit_level, level);
765 }
766
767 done:
768 heap_free(explicit);
769 heap_free(levels);
770 heap_free(buff);
771
772 return hr;
773 }
774
775 static HRESULT WINAPI dwritetextanalyzer_AnalyzeNumberSubstitution(IDWriteTextAnalyzer2 *iface,
776 IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
777 {
778 FIXME("(%p %u %u %p): stub\n", source, position, length, sink);
779 return E_NOTIMPL;
780 }
781
782 static HRESULT WINAPI dwritetextanalyzer_AnalyzeLineBreakpoints(IDWriteTextAnalyzer2 *iface,
783 IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
784 {
785 DWRITE_LINE_BREAKPOINT *breakpoints = NULL;
786 WCHAR *buff = NULL;
787 const WCHAR *text;
788 HRESULT hr;
789 UINT32 len;
790
791 TRACE("(%p %u %u %p)\n", source, position, length, sink);
792
793 if (length == 0)
794 return S_OK;
795
796 /* get some, check for length */
797 text = NULL;
798 len = 0;
799 hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, position, &text, &len);
800 if (FAILED(hr)) return hr;
801
802 if (len < length) {
803 UINT32 read;
804
805 buff = heap_alloc(length*sizeof(WCHAR));
806 if (!buff)
807 return E_OUTOFMEMORY;
808 memcpy(buff, text, len*sizeof(WCHAR));
809 read = len;
810
811 while (read < length && text) {
812 text = NULL;
813 len = 0;
814 hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, read, &text, &len);
815 if (FAILED(hr))
816 goto done;
817 memcpy(&buff[read], text, min(len, length-read)*sizeof(WCHAR));
818 read += len;
819 }
820
821 text = buff;
822 }
823
824 breakpoints = heap_alloc(length*sizeof(*breakpoints));
825 if (!breakpoints) {
826 hr = E_OUTOFMEMORY;
827 goto done;
828 }
829
830 hr = analyze_linebreaks(text, length, breakpoints);
831 if (FAILED(hr))
832 goto done;
833
834 hr = IDWriteTextAnalysisSink_SetLineBreakpoints(sink, position, length, breakpoints);
835
836 done:
837 heap_free(breakpoints);
838 heap_free(buff);
839
840 return hr;
841 }
842
843 static UINT32 get_opentype_language(const WCHAR *locale)
844 {
845 UINT32 language = DWRITE_FONT_FEATURE_TAG_DEFAULT;
846
847 if (locale) {
848 WCHAR tag[5];
849 if (GetLocaleInfoEx(locale, LOCALE_SOPENTYPELANGUAGETAG, tag, sizeof(tag)/sizeof(WCHAR)))
850 language = DWRITE_MAKE_OPENTYPE_TAG(tag[0],tag[1],tag[2],tag[3]);
851 }
852
853 return language;
854 }
855
856 static HRESULT WINAPI dwritetextanalyzer_GetGlyphs(IDWriteTextAnalyzer2 *iface,
857 WCHAR const* text, UINT32 length, IDWriteFontFace* fontface, BOOL is_sideways,
858 BOOL is_rtl, DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale,
859 IDWriteNumberSubstitution* substitution, DWRITE_TYPOGRAPHIC_FEATURES const** features,
860 UINT32 const* feature_range_len, UINT32 feature_ranges, UINT32 max_glyph_count,
861 UINT16* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* text_props, UINT16* glyph_indices,
862 DWRITE_SHAPING_GLYPH_PROPERTIES* glyph_props, UINT32* actual_glyph_count)
863 {
864 const struct dwritescript_properties *scriptprops;
865 struct scriptshaping_context context;
866 struct scriptshaping_cache *cache = NULL;
867 BOOL update_cluster, need_vertical;
868 IDWriteFontFace1 *fontface1;
869 WCHAR *string;
870 UINT32 i, g;
871 HRESULT hr = S_OK;
872 UINT16 script;
873
874 TRACE("(%s:%u %p %d %d %p %s %p %p %p %u %u %p %p %p %p %p)\n", debugstr_wn(text, length),
875 length, fontface, is_sideways, is_rtl, analysis, debugstr_w(locale), substitution, features, feature_range_len,
876 feature_ranges, max_glyph_count, clustermap, text_props, glyph_indices, glyph_props, actual_glyph_count);
877
878 script = analysis->script > Script_LastId ? Script_Unknown : analysis->script;
879
880 if (max_glyph_count < length)
881 return E_NOT_SUFFICIENT_BUFFER;
882
883 if (substitution)
884 FIXME("number substitution is not supported.\n");
885
886 for (i = 0; i < length; i++) {
887 /* FIXME: set to better values */
888 glyph_props[i].justification = text[i] == ' ' ? SCRIPT_JUSTIFY_BLANK : SCRIPT_JUSTIFY_CHARACTER;
889 glyph_props[i].isClusterStart = 1;
890 glyph_props[i].isDiacritic = 0;
891 glyph_props[i].isZeroWidthSpace = 0;
892 glyph_props[i].reserved = 0;
893
894 /* FIXME: have the shaping engine set this */
895 text_props[i].isShapedAlone = 0;
896 text_props[i].reserved = 0;
897
898 clustermap[i] = i;
899 }
900
901 for (; i < max_glyph_count; i++) {
902 glyph_props[i].justification = SCRIPT_JUSTIFY_NONE;
903 glyph_props[i].isClusterStart = 0;
904 glyph_props[i].isDiacritic = 0;
905 glyph_props[i].isZeroWidthSpace = 0;
906 glyph_props[i].reserved = 0;
907 }
908
909 string = heap_alloc(sizeof(WCHAR)*length);
910 if (!string)
911 return E_OUTOFMEMORY;
912
913 hr = IDWriteFontFace_QueryInterface(fontface, &IID_IDWriteFontFace1, (void**)&fontface1);
914 if (FAILED(hr))
915 WARN("failed to get IDWriteFontFace1\n");
916
917 need_vertical = is_sideways && fontface1 && IDWriteFontFace1_HasVerticalGlyphVariants(fontface1);
918
919 for (i = 0, g = 0, update_cluster = FALSE; i < length; i++) {
920 UINT32 codepoint;
921
922 if (!update_cluster) {
923 codepoint = decode_surrogate_pair(text, i, length);
924 if (!codepoint) {
925 codepoint = is_rtl ? bidi_get_mirrored_char(text[i]) : text[i];
926 string[i] = codepoint;
927 }
928 else {
929 string[i] = text[i];
930 string[i+1] = text[i+1];
931 update_cluster = TRUE;
932 }
933
934 hr = IDWriteFontFace_GetGlyphIndices(fontface, &codepoint, 1, &glyph_indices[g]);
935 if (FAILED(hr))
936 goto done;
937
938 if (need_vertical) {
939 UINT16 vertical;
940
941 hr = IDWriteFontFace1_GetVerticalGlyphVariants(fontface1, 1, &glyph_indices[g], &vertical);
942 if (hr == S_OK)
943 glyph_indices[g] = vertical;
944 }
945
946 g++;
947 }
948 else {
949 INT32 k;
950
951 update_cluster = FALSE;
952 /* mark surrogate halves with same cluster */
953 clustermap[i] = clustermap[i-1];
954 /* update following clusters */
955 for (k = i + 1; k >= 0 && k < length; k++)
956 clustermap[k]--;
957 }
958 }
959 *actual_glyph_count = g;
960
961 hr = create_scriptshaping_cache(fontface, &cache);
962 if (FAILED(hr))
963 goto done;
964
965 context.cache = cache;
966 context.text = text;
967 context.length = length;
968 context.is_rtl = is_rtl;
969 context.max_glyph_count = max_glyph_count;
970 context.language_tag = get_opentype_language(locale);
971
972 scriptprops = &dwritescripts_properties[script];
973 if (scriptprops->ops && scriptprops->ops->contextual_shaping) {
974 hr = scriptprops->ops->contextual_shaping(&context, clustermap, glyph_indices, actual_glyph_count);
975 if (FAILED(hr))
976 goto done;
977 }
978
979 /* FIXME: apply default features */
980
981 if (scriptprops->ops && scriptprops->ops->set_text_glyphs_props)
982 hr = scriptprops->ops->set_text_glyphs_props(&context, clustermap, glyph_indices, *actual_glyph_count, text_props, glyph_props);
983 else
984 hr = default_shaping_ops.set_text_glyphs_props(&context, clustermap, glyph_indices, *actual_glyph_count, text_props, glyph_props);
985
986 done:
987 if (fontface1)
988 IDWriteFontFace1_Release(fontface1);
989 release_scriptshaping_cache(cache);
990 heap_free(string);
991
992 return hr;
993 }
994
995 static inline FLOAT get_scaled_advance_width(INT32 advance, FLOAT emSize, const DWRITE_FONT_METRICS *metrics)
996 {
997 return (FLOAT)advance * emSize / (FLOAT)metrics->designUnitsPerEm;
998 }
999
1000 static HRESULT WINAPI dwritetextanalyzer_GetGlyphPlacements(IDWriteTextAnalyzer2 *iface,
1001 WCHAR const* text, UINT16 const* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* props,
1002 UINT32 text_len, UINT16 const* glyphs, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
1003 UINT32 glyph_count, IDWriteFontFace *fontface, FLOAT emSize, BOOL is_sideways, BOOL is_rtl,
1004 DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale, DWRITE_TYPOGRAPHIC_FEATURES const** features,
1005 UINT32 const* feature_range_len, UINT32 feature_ranges, FLOAT *advances, DWRITE_GLYPH_OFFSET *offsets)
1006 {
1007 DWRITE_FONT_METRICS metrics;
1008 IDWriteFontFace1 *fontface1;
1009 HRESULT hr;
1010 UINT32 i;
1011
1012 TRACE("(%s %p %p %u %p %p %u %p %.2f %d %d %p %s %p %p %u %p %p)\n", debugstr_w(text),
1013 clustermap, props, text_len, glyphs, glyph_props, glyph_count, fontface, emSize, is_sideways,
1014 is_rtl, analysis, debugstr_w(locale), features, feature_range_len, feature_ranges, advances, offsets);
1015
1016 if (glyph_count == 0)
1017 return S_OK;
1018
1019 hr = IDWriteFontFace_QueryInterface(fontface, &IID_IDWriteFontFace1, (void**)&fontface1);
1020 if (FAILED(hr)) {
1021 WARN("failed to get IDWriteFontFace1.\n");
1022 return hr;
1023 }
1024
1025 IDWriteFontFace_GetMetrics(fontface, &metrics);
1026 for (i = 0; i < glyph_count; i++) {
1027 INT32 a;
1028
1029 hr = IDWriteFontFace1_GetDesignGlyphAdvances(fontface1, 1, &glyphs[i], &a, is_sideways);
1030 if (FAILED(hr))
1031 a = 0;
1032
1033 advances[i] = get_scaled_advance_width(a, emSize, &metrics);
1034 offsets[i].advanceOffset = 0.0;
1035 offsets[i].ascenderOffset = 0.0;
1036 }
1037
1038 /* FIXME: actually apply features */
1039 return S_OK;
1040 }
1041
1042 static HRESULT WINAPI dwritetextanalyzer_GetGdiCompatibleGlyphPlacements(IDWriteTextAnalyzer2 *iface,
1043 WCHAR const* text, UINT16 const* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* props,
1044 UINT32 text_len, UINT16 const* glyph_indices, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
1045 UINT32 glyph_count, IDWriteFontFace * font_face, FLOAT fontEmSize, FLOAT pixels_per_dip,
1046 DWRITE_MATRIX const* transform, BOOL use_gdi_natural, BOOL is_sideways, BOOL is_rtl,
1047 DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale, DWRITE_TYPOGRAPHIC_FEATURES const** features,
1048 UINT32 const* feature_range_lengths, UINT32 feature_ranges, FLOAT* glyph_advances, DWRITE_GLYPH_OFFSET* glyph_offsets)
1049 {
1050 FIXME("(%s %p %p %u %p %p %u %p %f %f %p %d %d %d %p %s %p %p %u %p %p): stub\n", debugstr_w(text),
1051 clustermap, props, text_len, glyph_indices, glyph_props, glyph_count, font_face, fontEmSize, pixels_per_dip,
1052 transform, use_gdi_natural, is_sideways, is_rtl, analysis, debugstr_w(locale), features, feature_range_lengths,
1053 feature_ranges, glyph_advances, glyph_offsets);
1054 return E_NOTIMPL;
1055 }
1056
1057 static HRESULT WINAPI dwritetextanalyzer1_ApplyCharacterSpacing(IDWriteTextAnalyzer2 *iface,
1058 FLOAT leading_spacing, FLOAT trailing_spacing, FLOAT min_advance_width, UINT32 len,
1059 UINT32 glyph_count, UINT16 const *clustermap, FLOAT const *advances, DWRITE_GLYPH_OFFSET const *offsets,
1060 DWRITE_SHAPING_GLYPH_PROPERTIES const *props, FLOAT *modified_advances, DWRITE_GLYPH_OFFSET *modified_offsets)
1061 {
1062 FIXME("(%.2f %.2f %.2f %u %u %p %p %p %p %p %p): stub\n", leading_spacing, trailing_spacing, min_advance_width,
1063 len, glyph_count, clustermap, advances, offsets, props, modified_advances, modified_offsets);
1064 return E_NOTIMPL;
1065 }
1066
1067 static HRESULT WINAPI dwritetextanalyzer1_GetBaseline(IDWriteTextAnalyzer2 *iface, IDWriteFontFace *face,
1068 DWRITE_BASELINE baseline, BOOL vertical, BOOL is_simulation_allowed, DWRITE_SCRIPT_ANALYSIS sa,
1069 const WCHAR *localeName, INT32 *baseline_coord, BOOL *exists)
1070 {
1071 FIXME("(%p %d %d %u %s %p %p): stub\n", face, vertical, is_simulation_allowed, sa.script, debugstr_w(localeName),
1072 baseline_coord, exists);
1073 return E_NOTIMPL;
1074 }
1075
1076 static HRESULT WINAPI dwritetextanalyzer1_AnalyzeVerticalGlyphOrientation(IDWriteTextAnalyzer2 *iface,
1077 IDWriteTextAnalysisSource1* source, UINT32 text_pos, UINT32 len, IDWriteTextAnalysisSink1 *sink)
1078 {
1079 FIXME("(%p %u %u %p): stub\n", source, text_pos, len, sink);
1080 return E_NOTIMPL;
1081 }
1082
1083 static HRESULT WINAPI dwritetextanalyzer1_GetGlyphOrientationTransform(IDWriteTextAnalyzer2 *iface,
1084 DWRITE_GLYPH_ORIENTATION_ANGLE angle, BOOL is_sideways, DWRITE_MATRIX *transform)
1085 {
1086 FIXME("(%d %d %p): stub\n", angle, is_sideways, transform);
1087 return E_NOTIMPL;
1088 }
1089
1090 static HRESULT WINAPI dwritetextanalyzer1_GetScriptProperties(IDWriteTextAnalyzer2 *iface, DWRITE_SCRIPT_ANALYSIS sa,
1091 DWRITE_SCRIPT_PROPERTIES *props)
1092 {
1093 TRACE("(%u %p)\n", sa.script, props);
1094
1095 if (sa.script > Script_LastId)
1096 return E_INVALIDARG;
1097
1098 *props = dwritescripts_properties[sa.script].props;
1099 return S_OK;
1100 }
1101
1102 static inline BOOL is_char_from_simple_script(WCHAR c)
1103 {
1104 if (IS_HIGH_SURROGATE(c) || IS_LOW_SURROGATE(c))
1105 return FALSE;
1106 else {
1107 UINT16 script = get_char_script(c);
1108 return !dwritescripts_properties[script].is_complex;
1109 }
1110 }
1111
1112 static HRESULT WINAPI dwritetextanalyzer1_GetTextComplexity(IDWriteTextAnalyzer2 *iface, const WCHAR *text,
1113 UINT32 len, IDWriteFontFace *face, BOOL *is_simple, UINT32 *len_read, UINT16 *indices)
1114 {
1115 HRESULT hr = S_OK;
1116 int i;
1117
1118 TRACE("(%s:%u %p %p %p %p)\n", debugstr_wn(text, len), len, face, is_simple, len_read, indices);
1119
1120 *is_simple = FALSE;
1121 *len_read = 0;
1122
1123 if (!face)
1124 return E_INVALIDARG;
1125
1126 if (len == 0) {
1127 *is_simple = TRUE;
1128 return S_OK;
1129 }
1130
1131 *is_simple = text[0] && is_char_from_simple_script(text[0]);
1132 for (i = 1; i < len && text[i]; i++) {
1133 if (is_char_from_simple_script(text[i])) {
1134 if (!*is_simple)
1135 break;
1136 }
1137 else
1138 *is_simple = FALSE;
1139 }
1140
1141 *len_read = i;
1142
1143 /* fetch indices */
1144 if (*is_simple && indices) {
1145 UINT32 *codepoints = heap_alloc(*len_read*sizeof(UINT32));
1146 if (!codepoints)
1147 return E_OUTOFMEMORY;
1148
1149 for (i = 0; i < *len_read; i++)
1150 codepoints[i] = text[i];
1151
1152 hr = IDWriteFontFace_GetGlyphIndices(face, codepoints, *len_read, indices);
1153 heap_free(codepoints);
1154 }
1155
1156 return hr;
1157 }
1158
1159 static HRESULT WINAPI dwritetextanalyzer1_GetJustificationOpportunities(IDWriteTextAnalyzer2 *iface,
1160 IDWriteFontFace *face, FLOAT font_em_size, DWRITE_SCRIPT_ANALYSIS sa, UINT32 length, UINT32 glyph_count,
1161 const WCHAR *text, const UINT16 *clustermap, const DWRITE_SHAPING_GLYPH_PROPERTIES *prop, DWRITE_JUSTIFICATION_OPPORTUNITY *jo)
1162 {
1163 FIXME("(%p %.2f %u %u %u %s %p %p %p): stub\n", face, font_em_size, sa.script, length, glyph_count,
1164 debugstr_w(text), clustermap, prop, jo);
1165 return E_NOTIMPL;
1166 }
1167
1168 static HRESULT WINAPI dwritetextanalyzer1_JustifyGlyphAdvances(IDWriteTextAnalyzer2 *iface,
1169 FLOAT width, UINT32 glyph_count, const DWRITE_JUSTIFICATION_OPPORTUNITY *jo, const FLOAT *advances,
1170 const DWRITE_GLYPH_OFFSET *offsets, FLOAT *justifiedadvances, DWRITE_GLYPH_OFFSET *justifiedoffsets)
1171 {
1172 FIXME("(%.2f %u %p %p %p %p %p): stub\n", width, glyph_count, jo, advances, offsets, justifiedadvances,
1173 justifiedoffsets);
1174 return E_NOTIMPL;
1175 }
1176
1177 static HRESULT WINAPI dwritetextanalyzer1_GetJustifiedGlyphs(IDWriteTextAnalyzer2 *iface,
1178 IDWriteFontFace *face, FLOAT font_em_size, DWRITE_SCRIPT_ANALYSIS sa, UINT32 length,
1179 UINT32 glyph_count, UINT32 max_glyphcount, const UINT16 *clustermap, const UINT16 *indices,
1180 const FLOAT *advances, const FLOAT *justifiedadvances, const DWRITE_GLYPH_OFFSET *justifiedoffsets,
1181 const DWRITE_SHAPING_GLYPH_PROPERTIES *prop, UINT32 *actual_count, UINT16 *modified_clustermap,
1182 UINT16 *modified_indices, FLOAT *modified_advances, DWRITE_GLYPH_OFFSET *modified_offsets)
1183 {
1184 FIXME("(%p %.2f %u %u %u %u %p %p %p %p %p %p %p %p %p %p %p): stub\n", face, font_em_size, sa.script,
1185 length, glyph_count, max_glyphcount, clustermap, indices, advances, justifiedadvances, justifiedoffsets,
1186 prop, actual_count, modified_clustermap, modified_indices, modified_advances, modified_offsets);
1187 return E_NOTIMPL;
1188 }
1189
1190 static HRESULT WINAPI dwritetextanalyzer2_GetGlyphOrientationTransform(IDWriteTextAnalyzer2 *iface,
1191 DWRITE_GLYPH_ORIENTATION_ANGLE angle, BOOL is_sideways, FLOAT originX, FLOAT originY, DWRITE_MATRIX *transform)
1192 {
1193 FIXME("(%d %d %.2f %.2f %p): stub\n", angle, is_sideways, originX, originY, transform);
1194 return E_NOTIMPL;
1195 }
1196
1197 static HRESULT WINAPI dwritetextanalyzer2_GetTypographicFeatures(IDWriteTextAnalyzer2 *iface,
1198 IDWriteFontFace *fontface, DWRITE_SCRIPT_ANALYSIS sa, const WCHAR *locale,
1199 UINT32 max_tagcount, UINT32 *actual_tagcount, DWRITE_FONT_FEATURE_TAG *tags)
1200 {
1201 const struct dwritescript_properties *props;
1202 HRESULT hr = S_OK;
1203 UINT32 language;
1204
1205 TRACE("(%p %u %s %u %p %p)\n", fontface, sa.script, debugstr_w(locale), max_tagcount, actual_tagcount,
1206 tags);
1207
1208 if (sa.script > Script_LastId)
1209 return E_INVALIDARG;
1210
1211 language = get_opentype_language(locale);
1212 props = &dwritescripts_properties[sa.script];
1213 *actual_tagcount = 0;
1214
1215 if (props->scriptalttag)
1216 hr = opentype_get_typographic_features(fontface, props->scriptalttag, language, max_tagcount, actual_tagcount, tags);
1217
1218 if (*actual_tagcount == 0)
1219 hr = opentype_get_typographic_features(fontface, props->scripttag, language, max_tagcount, actual_tagcount, tags);
1220
1221 return hr;
1222 };
1223
1224 static HRESULT WINAPI dwritetextanalyzer2_CheckTypographicFeature(IDWriteTextAnalyzer2 *iface,
1225 IDWriteFontFace *face, DWRITE_SCRIPT_ANALYSIS sa, const WCHAR *localeName,
1226 DWRITE_FONT_FEATURE_TAG feature, UINT32 glyph_count, const UINT16 *indices, UINT8 *feature_applies)
1227 {
1228 FIXME("(%p %u %s %x %u %p %p): stub\n", face, sa.script, debugstr_w(localeName), feature, glyph_count, indices,
1229 feature_applies);
1230 return E_NOTIMPL;
1231 }
1232
1233 static const struct IDWriteTextAnalyzer2Vtbl textanalyzervtbl = {
1234 dwritetextanalyzer_QueryInterface,
1235 dwritetextanalyzer_AddRef,
1236 dwritetextanalyzer_Release,
1237 dwritetextanalyzer_AnalyzeScript,
1238 dwritetextanalyzer_AnalyzeBidi,
1239 dwritetextanalyzer_AnalyzeNumberSubstitution,
1240 dwritetextanalyzer_AnalyzeLineBreakpoints,
1241 dwritetextanalyzer_GetGlyphs,
1242 dwritetextanalyzer_GetGlyphPlacements,
1243 dwritetextanalyzer_GetGdiCompatibleGlyphPlacements,
1244 dwritetextanalyzer1_ApplyCharacterSpacing,
1245 dwritetextanalyzer1_GetBaseline,
1246 dwritetextanalyzer1_AnalyzeVerticalGlyphOrientation,
1247 dwritetextanalyzer1_GetGlyphOrientationTransform,
1248 dwritetextanalyzer1_GetScriptProperties,
1249 dwritetextanalyzer1_GetTextComplexity,
1250 dwritetextanalyzer1_GetJustificationOpportunities,
1251 dwritetextanalyzer1_JustifyGlyphAdvances,
1252 dwritetextanalyzer1_GetJustifiedGlyphs,
1253 dwritetextanalyzer2_GetGlyphOrientationTransform,
1254 dwritetextanalyzer2_GetTypographicFeatures,
1255 dwritetextanalyzer2_CheckTypographicFeature
1256 };
1257
1258 static IDWriteTextAnalyzer2 textanalyzer = { &textanalyzervtbl };
1259
1260 HRESULT get_textanalyzer(IDWriteTextAnalyzer **ret)
1261 {
1262 *ret = (IDWriteTextAnalyzer*)&textanalyzer;
1263 return S_OK;
1264 }
1265
1266 static HRESULT WINAPI dwritenumbersubstitution_QueryInterface(IDWriteNumberSubstitution *iface, REFIID riid, void **obj)
1267 {
1268 struct dwrite_numbersubstitution *This = impl_from_IDWriteNumberSubstitution(iface);
1269
1270 TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
1271
1272 if (IsEqualIID(riid, &IID_IDWriteNumberSubstitution) ||
1273 IsEqualIID(riid, &IID_IUnknown))
1274 {
1275 *obj = iface;
1276 IDWriteNumberSubstitution_AddRef(iface);
1277 return S_OK;
1278 }
1279
1280 *obj = NULL;
1281
1282 return E_NOINTERFACE;
1283 }
1284
1285 static ULONG WINAPI dwritenumbersubstitution_AddRef(IDWriteNumberSubstitution *iface)
1286 {
1287 struct dwrite_numbersubstitution *This = impl_from_IDWriteNumberSubstitution(iface);
1288 ULONG ref = InterlockedIncrement(&This->ref);
1289 TRACE("(%p)->(%d)\n", This, ref);
1290 return ref;
1291 }
1292
1293 static ULONG WINAPI dwritenumbersubstitution_Release(IDWriteNumberSubstitution *iface)
1294 {
1295 struct dwrite_numbersubstitution *This = impl_from_IDWriteNumberSubstitution(iface);
1296 ULONG ref = InterlockedDecrement(&This->ref);
1297
1298 TRACE("(%p)->(%d)\n", This, ref);
1299
1300 if (!ref) {
1301 heap_free(This->locale);
1302 heap_free(This);
1303 }
1304
1305 return ref;
1306 }
1307
1308 static const struct IDWriteNumberSubstitutionVtbl numbersubstitutionvtbl = {
1309 dwritenumbersubstitution_QueryInterface,
1310 dwritenumbersubstitution_AddRef,
1311 dwritenumbersubstitution_Release
1312 };
1313
1314 HRESULT create_numbersubstitution(DWRITE_NUMBER_SUBSTITUTION_METHOD method, const WCHAR *locale,
1315 BOOL ignore_user_override, IDWriteNumberSubstitution **ret)
1316 {
1317 struct dwrite_numbersubstitution *substitution;
1318
1319 *ret = NULL;
1320
1321 if ((UINT32)method > DWRITE_NUMBER_SUBSTITUTION_METHOD_TRADITIONAL)
1322 return E_INVALIDARG;
1323
1324 if (method != DWRITE_NUMBER_SUBSTITUTION_METHOD_NONE && !IsValidLocaleName(locale))
1325 return E_INVALIDARG;
1326
1327 substitution = heap_alloc(sizeof(*substitution));
1328 if (!substitution)
1329 return E_OUTOFMEMORY;
1330
1331 substitution->IDWriteNumberSubstitution_iface.lpVtbl = &numbersubstitutionvtbl;
1332 substitution->ref = 1;
1333 substitution->ignore_user_override = ignore_user_override;
1334 substitution->method = method;
1335 substitution->locale = heap_strdupW(locale);
1336 if (locale && !substitution->locale) {
1337 heap_free(substitution);
1338 return E_OUTOFMEMORY;
1339 }
1340
1341 *ret = &substitution->IDWriteNumberSubstitution_iface;
1342 return S_OK;
1343 }
Windows API implementation