1932 lines
74 KiB
C
1932 lines
74 KiB
C
/*
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* Text analyzer
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*
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* Copyright 2011 Aric Stewart for CodeWeavers
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* Copyright 2012, 2014 Nikolay Sivov for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#define COBJMACROS
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#include <math.h>
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#include "dwrite_private.h"
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#include "scripts.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
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extern const unsigned short wine_linebreak_table[];
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extern const unsigned short wine_scripts_table[];
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struct dwritescript_properties {
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DWRITE_SCRIPT_PROPERTIES props;
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UINT32 scripttag; /* OpenType script tag */
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UINT32 scriptalttag; /* Version 2 tag, 0 if not defined */
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BOOL is_complex;
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const struct scriptshaping_ops *ops;
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};
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#define _OT(a,b,c,d) DWRITE_MAKE_OPENTYPE_TAG(a,b,c,d)
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/* NOTE: keep this array synced with script ids from scripts.h */
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static const struct dwritescript_properties dwritescripts_properties[Script_LastId+1] = {
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{ /* Zzzz */ { 0x7a7a7a5a, 999, 15, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Zyyy */ { 0x7979795a, 998, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
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{ /* Ahom */ { 0x6d6f6841, 338, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Hluw */ { 0x77756c48, 80, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Arab */ { 0x62617241, 160, 8, 0x0640, 0, 1, 0, 0, 0, 1, 1 }, _OT('a','r','a','b'), 0, TRUE },
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{ /* Armn */ { 0x6e6d7241, 230, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('a','r','m','n') },
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{ /* Avst */ { 0x74737641, 134, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('a','v','s','t') },
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{ /* Bali */ { 0x696c6142, 360, 15, 0x0020, 1, 0, 1, 0, 0, 0, 0 }, _OT('b','a','l','i') },
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{ /* Bamu */ { 0x756d6142, 435, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('b','a','m','u') },
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{ /* Bass */ { 0x73736142, 259, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Batk */ { 0x6b746142, 365, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('b','a','t','k') },
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{ /* Beng */ { 0x676e6542, 325, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, _OT('b','e','n','g'), _OT('b','n','g','2'), TRUE },
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{ /* Bopo */ { 0x6f706f42, 285, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('b','o','p','o') },
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{ /* Brah */ { 0x68617242, 300, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('b','r','a','h') },
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{ /* Brai */ { 0x69617242, 570, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('b','r','a','i'), 0, TRUE },
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{ /* Bugi */ { 0x69677542, 367, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('b','u','g','i') },
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{ /* Buhd */ { 0x64687542, 372, 8, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('b','u','h','d') },
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{ /* Cans */ { 0x736e6143, 440, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('c','a','n','s'), 0, TRUE },
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{ /* Cari */ { 0x69726143, 201, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('c','a','r','i') },
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{ /* Aghb */ { 0x62686741, 239, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Cakm */ { 0x6d6b6143, 349, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('c','a','k','m') },
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{ /* Cham */ { 0x6d616843, 358, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('c','h','a','m') },
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{ /* Cher */ { 0x72656843, 445, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('c','h','e','r'), 0, TRUE },
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{ /* Copt */ { 0x74706f43, 204, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('c','o','p','t') },
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{ /* Xsux */ { 0x78757358, 20, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('x','s','u','x') },
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{ /* Cprt */ { 0x74727043, 403, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('c','p','r','t') },
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{ /* Cyrl */ { 0x6c727943, 220, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('c','y','r','l') },
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{ /* Dsrt */ { 0x74727344, 250, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('d','s','r','t'), 0, TRUE },
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{ /* Deva */ { 0x61766544, 315, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, _OT('d','e','v','a'), _OT('d','e','v','2'), TRUE },
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{ /* Dupl */ { 0x6c707544, 755, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Egyp */ { 0x70796745, 50, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('e','g','y','p') },
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{ /* Elba */ { 0x61626c45, 226, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Ethi */ { 0x69687445, 430, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('e','t','h','i'), 0, TRUE },
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{ /* Geor */ { 0x726f6547, 240, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('g','e','o','r') },
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{ /* Glag */ { 0x67616c47, 225, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('g','l','a','g') },
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{ /* Goth */ { 0x68746f47, 206, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('g','o','t','h') },
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{ /* Gran */ { 0x6e617247, 343, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Grek */ { 0x6b657247, 200, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('g','r','e','k') },
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{ /* Gujr */ { 0x726a7547, 320, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('g','u','j','r'), _OT('g','j','r','2'), TRUE },
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{ /* Guru */ { 0x75727547, 310, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, _OT('g','u','r','u'), _OT('g','u','r','2'), TRUE },
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{ /* Hani */ { 0x696e6148, 500, 8, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('h','a','n','i') },
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{ /* Hang */ { 0x676e6148, 286, 8, 0x0020, 1, 1, 1, 1, 0, 0, 0 }, _OT('h','a','n','g'), 0, TRUE },
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{ /* Hano */ { 0x6f6e6148, 371, 8, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('h','a','n','o') },
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{ /* Hatr */ { 0x72746148, 127, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Hebr */ { 0x72626548, 125, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('h','e','b','r'), 0, TRUE },
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{ /* Hira */ { 0x61726948, 410, 8, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('k','a','n','a') },
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{ /* Armi */ { 0x696d7241, 124, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('a','r','m','i') },
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{ /* Phli */ { 0x696c6850, 131, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('p','h','l','i') },
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{ /* Prti */ { 0x69747250, 130, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('p','r','t','i') },
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{ /* Java */ { 0x6176614a, 361, 15, 0x0020, 1, 0, 1, 0, 0, 0, 0 }, _OT('j','a','v','a') },
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{ /* Kthi */ { 0x6968744b, 317, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, _OT('k','t','h','i') },
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{ /* Knda */ { 0x61646e4b, 345, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('k','n','d','a'), _OT('k','n','d','2'), TRUE },
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{ /* Kana */ { 0x616e614b, 411, 8, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('k','a','n','a') },
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{ /* Kali */ { 0x696c614b, 357, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('k','a','l','i') },
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{ /* Khar */ { 0x7261684b, 305, 15, 0x0020, 1, 0, 1, 0, 0, 0, 0 }, _OT('k','h','a','r') },
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{ /* Khmr */ { 0x726d684b, 355, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 }, _OT('k','h','m','r'), 0, TRUE },
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{ /* Khoj */ { 0x6a6f684b, 322, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Sind */ { 0x646e6953, 318, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Laoo */ { 0x6f6f614c, 356, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 }, _OT('l','a','o',' '), 0, TRUE },
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{ /* Latn */ { 0x6e74614c, 215, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('l','a','t','n'), 0, FALSE, &latn_shaping_ops },
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{ /* Lepc */ { 0x6370654c, 335, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('l','e','p','c') },
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{ /* Limb */ { 0x626d694c, 336, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('l','i','m','b') },
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{ /* Lina */ { 0x616e694c, 400, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Linb */ { 0x626e694c, 401, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('l','i','n','b') },
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{ /* Lisu */ { 0x7573694c, 399, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('l','i','s','u') },
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{ /* Lyci */ { 0x6963794c, 202, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('l','y','c','i') },
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{ /* Lydi */ { 0x6964794c, 116, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('l','y','d','i') },
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{ /* Mahj */ { 0x6a68614d, 314, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Mlym */ { 0x6d796c4d, 347, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('m','l','y','m'), _OT('m','l','m','2'), TRUE },
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{ /* Mand */ { 0x646e614d, 140, 8, 0x0640, 0, 1, 0, 0, 0, 1, 1 }, _OT('m','a','n','d') },
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{ /* Mani */ { 0x696e614d, 139, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Mtei */ { 0x6965744d, 337, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('m','t','e','i') },
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{ /* Mend */ { 0x646e654d, 438, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Merc */ { 0x6372654d, 101, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('m','e','r','c') },
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{ /* Mero */ { 0x6f72654d, 100, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('m','e','r','o') },
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{ /* Plrd */ { 0x64726c50, 282, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Modi */ { 0x69646f4d, 324, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Mong */ { 0x676e6f4d, 145, 8, 0x0020, 0, 1, 0, 0, 0, 1, 1 }, _OT('m','o','n','g'), 0, TRUE },
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{ /* Mroo */ { 0x6f6f724d, 199, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Mult */ { 0x746c754d, 323, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Mymr */ { 0x726d794d, 350, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('m','y','m','r'), 0, TRUE },
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{ /* Nbat */ { 0x7461624e, 159, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Talu */ { 0x756c6154, 354, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','a','l','u'), 0, TRUE },
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{ /* Nkoo */ { 0x6f6f6b4e, 165, 8, 0x0020, 0, 1, 0, 0, 0, 1, 1 }, _OT('n','k','o',' '), 0, TRUE },
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{ /* Ogam */ { 0x6d61674f, 212, 1, 0x1680, 0, 1, 0, 0, 0, 1, 0 }, _OT('o','g','a','m'), 0, TRUE },
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{ /* Olck */ { 0x6b636c4f, 261, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('o','l','c','k') },
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{ /* Hung */ { 0x676e7548, 176, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Ital */ { 0x6c617449, 210, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('i','t','a','l') },
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{ /* Narb */ { 0x6272614e, 106, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Perm */ { 0x6d726550, 227, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Xpeo */ { 0x6f657058, 30, 1, 0x0020, 0, 1, 1, 1, 0, 0, 0 }, _OT('x','p','e','o'), 0, TRUE },
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{ /* Sarb */ { 0x62726153, 105, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('s','a','r','b') },
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{ /* Orkh */ { 0x686b724f, 175, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('o','r','k','h') },
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{ /* Orya */ { 0x6179724f, 327, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('o','r','y','a'), _OT('o','r','y','2'), TRUE },
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{ /* Osma */ { 0x616d734f, 260, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('o','s','m','a'), 0, TRUE },
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{ /* Hmng */ { 0x676e6d48, 450, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Palm */ { 0x6d6c6150, 126, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Pauc */ { 0x63756150, 263, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Phag */ { 0x67616850, 331, 8, 0x0020, 0, 1, 0, 0, 0, 1, 1 }, _OT('p','h','a','g'), 0, TRUE },
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{ /* Phnx */ { 0x786e6850, 115, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('p','h','n','x') },
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{ /* Phlp */ { 0x706c6850, 132, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Rjng */ { 0x676e6a52, 363, 8, 0x0020, 1, 0, 1, 0, 0, 0, 0 }, _OT('r','j','n','g') },
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{ /* Runr */ { 0x726e7552, 211, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, _OT('r','u','n','r'), 0, TRUE },
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{ /* Samr */ { 0x726d6153, 123, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('s','a','m','r') },
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{ /* Saur */ { 0x72756153, 344, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('s','a','u','r') },
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{ /* Shrd */ { 0x64726853, 319, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('s','h','r','d') },
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{ /* Shaw */ { 0x77616853, 281, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('s','h','a','w') },
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{ /* Sidd */ { 0x64646953, 302, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Sgnw */ { 0x776e6753, 95, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Sinh */ { 0x686e6953, 348, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('s','i','n','h'), 0, TRUE },
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{ /* Sora */ { 0x61726f53, 398, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('s','o','r','a') },
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{ /* Sund */ { 0x646e7553, 362, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('s','u','n','d') },
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{ /* Sylo */ { 0x6f6c7953, 316, 8, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, _OT('s','y','l','o') },
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{ /* Syrc */ { 0x63727953, 135, 8, 0x0640, 0, 1, 0, 0, 0, 1, 1 }, _OT('s','y','r','c'), 0, TRUE },
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{ /* Tglg */ { 0x676c6754, 370, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('t','g','l','g') },
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{ /* Tagb */ { 0x62676154, 373, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('t','a','g','b') },
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{ /* Tale */ { 0x656c6154, 353, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('t','a','l','e'), 0, TRUE },
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{ /* Lana */ { 0x616e614c, 351, 8, 0x0020, 1, 0, 1, 0, 0, 0, 0 }, _OT('l','a','n','a') },
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{ /* Tavt */ { 0x74766154, 359, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 }, _OT('t','a','v','t') },
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{ /* Takr */ { 0x726b6154, 321, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 }, _OT('t','a','k','r') },
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{ /* Taml */ { 0x6c6d6154, 346, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','a','m','l'), _OT('t','m','l','2'), TRUE },
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{ /* Telu */ { 0x756c6554, 340, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','e','l','u'), _OT('t','e','l','2'), TRUE },
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{ /* Thaa */ { 0x61616854, 170, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','h','a','a'), 0, TRUE },
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{ /* Thai */ { 0x69616854, 352, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 }, _OT('t','h','a','i'), 0, TRUE },
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{ /* Tibt */ { 0x74626954, 330, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','i','b','t'), 0, TRUE },
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{ /* Tfng */ { 0x676e6654, 120, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, _OT('t','f','n','g'), 0, TRUE },
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{ /* Tirh */ { 0x68726954, 326, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Ugar */ { 0x72616755, 40, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('u','g','a','r') },
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{ /* Vaii */ { 0x69696156, 470, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, _OT('v','a','i',' '), 0, TRUE },
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{ /* Wara */ { 0x61726157, 262, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
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{ /* Yiii */ { 0x69696959, 460, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, _OT('y','i',' ',' '), 0, TRUE }
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};
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#undef _OT
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const char *debugstr_sa_script(UINT16 script)
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{
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return script < Script_LastId ? debugstr_an((char*)&dwritescripts_properties[script].props.isoScriptCode, 4): "not defined";
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}
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/* system font falback configuration */
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static const WCHAR meiryoW[] = {'M','e','i','r','y','o',0};
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struct fallback_mapping {
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DWRITE_UNICODE_RANGE range;
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const WCHAR *family;
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};
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static const struct fallback_mapping fontfallback_neutral_data[] = {
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{ { 0x4e00, 0x9fff }, meiryoW }, /* CJK Unified Ideographs */
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};
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struct dwrite_fontfallback {
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IDWriteFontFallback IDWriteFontFallback_iface;
|
|
IDWriteFactory2 *factory;
|
|
const struct fallback_mapping *mappings;
|
|
UINT32 count;
|
|
};
|
|
|
|
struct dwrite_numbersubstitution {
|
|
IDWriteNumberSubstitution IDWriteNumberSubstitution_iface;
|
|
LONG ref;
|
|
|
|
DWRITE_NUMBER_SUBSTITUTION_METHOD method;
|
|
WCHAR *locale;
|
|
BOOL ignore_user_override;
|
|
};
|
|
|
|
static inline struct dwrite_numbersubstitution *impl_from_IDWriteNumberSubstitution(IDWriteNumberSubstitution *iface)
|
|
{
|
|
return CONTAINING_RECORD(iface, struct dwrite_numbersubstitution, IDWriteNumberSubstitution_iface);
|
|
}
|
|
|
|
static inline struct dwrite_fontfallback *impl_from_IDWriteFontFallback(IDWriteFontFallback *iface)
|
|
{
|
|
return CONTAINING_RECORD(iface, struct dwrite_fontfallback, IDWriteFontFallback_iface);
|
|
}
|
|
|
|
static inline UINT32 decode_surrogate_pair(const WCHAR *str, UINT32 index, UINT32 end)
|
|
{
|
|
if (index < end-1 && IS_SURROGATE_PAIR(str[index], str[index+1])) {
|
|
UINT32 ch = 0x10000 + ((str[index] - 0xd800) << 10) + (str[index+1] - 0xdc00);
|
|
TRACE("surrogate pair (%x %x) => %x\n", str[index], str[index+1], ch);
|
|
return ch;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline UINT16 get_char_script(WCHAR c)
|
|
{
|
|
UINT16 script = get_table_entry(wine_scripts_table, c);
|
|
if (script == Script_Unknown) {
|
|
WORD type;
|
|
if (GetStringTypeW(CT_CTYPE1, &c, 1, &type) && (type & C1_CNTRL))
|
|
script = Script_Common;
|
|
}
|
|
return script;
|
|
}
|
|
|
|
static HRESULT analyze_script(const WCHAR *text, UINT32 position, UINT32 len, IDWriteTextAnalysisSink *sink)
|
|
{
|
|
DWRITE_SCRIPT_ANALYSIS sa;
|
|
UINT32 pos, i, length;
|
|
|
|
if (!len) return S_OK;
|
|
|
|
sa.script = get_char_script(*text);
|
|
|
|
pos = position;
|
|
length = 1;
|
|
|
|
for (i = 1; i < len; i++)
|
|
{
|
|
UINT16 script = get_char_script(text[i]);
|
|
|
|
/* Unknown type is ignored when preceded or followed by another script */
|
|
if (sa.script == Script_Unknown) sa.script = script;
|
|
if (script == Script_Unknown && sa.script != Script_Common) script = sa.script;
|
|
/* this is a length of a sequence to be reported next */
|
|
if (sa.script == script) length++;
|
|
|
|
if (sa.script != script)
|
|
{
|
|
HRESULT hr;
|
|
|
|
sa.shapes = sa.script != Script_Common ? DWRITE_SCRIPT_SHAPES_DEFAULT : DWRITE_SCRIPT_SHAPES_NO_VISUAL;
|
|
hr = IDWriteTextAnalysisSink_SetScriptAnalysis(sink, pos, length, &sa);
|
|
if (FAILED(hr)) return hr;
|
|
pos = position + i;
|
|
length = 1;
|
|
sa.script = script;
|
|
}
|
|
}
|
|
|
|
/* 1 length case or normal completion call */
|
|
sa.shapes = sa.script != Script_Common ? DWRITE_SCRIPT_SHAPES_DEFAULT : DWRITE_SCRIPT_SHAPES_NO_VISUAL;
|
|
return IDWriteTextAnalysisSink_SetScriptAnalysis(sink, pos, length, &sa);
|
|
}
|
|
|
|
struct linebreaking_state {
|
|
DWRITE_LINE_BREAKPOINT *breakpoints;
|
|
UINT32 count;
|
|
};
|
|
|
|
enum BreakConditionLocation {
|
|
BreakConditionBefore,
|
|
BreakConditionAfter
|
|
};
|
|
|
|
enum linebreaking_classes {
|
|
b_BK = 1,
|
|
b_CR,
|
|
b_LF,
|
|
b_CM,
|
|
b_SG,
|
|
b_GL,
|
|
b_CB,
|
|
b_SP,
|
|
b_ZW,
|
|
b_NL,
|
|
b_WJ,
|
|
b_JL,
|
|
b_JV,
|
|
b_JT,
|
|
b_H2,
|
|
b_H3,
|
|
b_XX,
|
|
b_OP,
|
|
b_CL,
|
|
b_CP,
|
|
b_QU,
|
|
b_NS,
|
|
b_EX,
|
|
b_SY,
|
|
b_IS,
|
|
b_PR,
|
|
b_PO,
|
|
b_NU,
|
|
b_AL,
|
|
b_ID,
|
|
b_IN,
|
|
b_HY,
|
|
b_BB,
|
|
b_BA,
|
|
b_SA,
|
|
b_AI,
|
|
b_B2,
|
|
b_HL,
|
|
b_CJ,
|
|
b_RI
|
|
};
|
|
|
|
/* "Can break" is a weak condition, stronger "may not break" and "must break" override it. Initially all conditions are
|
|
set to "can break" and could only be changed once. */
|
|
static inline void set_break_condition(UINT32 pos, enum BreakConditionLocation location, DWRITE_BREAK_CONDITION condition,
|
|
struct linebreaking_state *state)
|
|
{
|
|
if (location == BreakConditionBefore) {
|
|
if (state->breakpoints[pos].breakConditionBefore != DWRITE_BREAK_CONDITION_CAN_BREAK)
|
|
return;
|
|
state->breakpoints[pos].breakConditionBefore = condition;
|
|
if (pos > 0)
|
|
state->breakpoints[pos-1].breakConditionAfter = condition;
|
|
}
|
|
else {
|
|
if (state->breakpoints[pos].breakConditionAfter != DWRITE_BREAK_CONDITION_CAN_BREAK)
|
|
return;
|
|
state->breakpoints[pos].breakConditionAfter = condition;
|
|
if (pos + 1 < state->count)
|
|
state->breakpoints[pos+1].breakConditionBefore = condition;
|
|
}
|
|
}
|
|
|
|
BOOL lb_is_newline_char(WCHAR ch)
|
|
{
|
|
short c = get_table_entry(wine_linebreak_table, ch);
|
|
return c == b_LF || c == b_NL || c == b_CR || c == b_BK;
|
|
}
|
|
|
|
static HRESULT analyze_linebreaks(const WCHAR *text, UINT32 count, DWRITE_LINE_BREAKPOINT *breakpoints)
|
|
{
|
|
struct linebreaking_state state;
|
|
short *break_class;
|
|
int i, j;
|
|
|
|
break_class = heap_alloc(count*sizeof(short));
|
|
if (!break_class)
|
|
return E_OUTOFMEMORY;
|
|
|
|
state.breakpoints = breakpoints;
|
|
state.count = count;
|
|
|
|
/* LB31 - allow breaks everywhere. It will be overridden if needed as
|
|
other rules dictate. */
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
break_class[i] = get_table_entry(wine_linebreak_table, text[i]);
|
|
|
|
breakpoints[i].breakConditionBefore = DWRITE_BREAK_CONDITION_CAN_BREAK;
|
|
breakpoints[i].breakConditionAfter = DWRITE_BREAK_CONDITION_CAN_BREAK;
|
|
breakpoints[i].isWhitespace = !!isspaceW(text[i]);
|
|
breakpoints[i].isSoftHyphen = text[i] == 0x00ad /* Unicode Soft Hyphen */;
|
|
breakpoints[i].padding = 0;
|
|
|
|
/* LB1 - resolve some classes. TODO: use external algorithms for these classes. */
|
|
switch (break_class[i])
|
|
{
|
|
case b_AI:
|
|
case b_SA:
|
|
case b_SG:
|
|
case b_XX:
|
|
break_class[i] = b_AL;
|
|
break;
|
|
case b_CJ:
|
|
break_class[i] = b_NS;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* LB2 - never break at the start */
|
|
set_break_condition(0, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
/* LB3 - always break at the end. This one is ignored. */
|
|
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
switch (break_class[i])
|
|
{
|
|
/* LB4 - LB6 */
|
|
case b_CR:
|
|
/* LB5 - don't break CR x LF */
|
|
if (i < count-1 && break_class[i+1] == b_LF)
|
|
{
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
}
|
|
case b_LF:
|
|
case b_NL:
|
|
case b_BK:
|
|
/* LB4 - LB5 - always break after hard breaks */
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MUST_BREAK, &state);
|
|
/* LB6 - do not break before hard breaks */
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
/* LB7 - do not break before spaces */
|
|
case b_SP:
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
case b_ZW:
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
/* LB8 - break before character after zero-width space, skip spaces in-between */
|
|
while (i < count-1 && break_class[i+1] == b_SP)
|
|
i++;
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* LB9 - LB10 */
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
if (break_class[i] == b_CM)
|
|
{
|
|
if (i > 0)
|
|
{
|
|
switch (break_class[i-1])
|
|
{
|
|
case b_SP:
|
|
case b_BK:
|
|
case b_CR:
|
|
case b_LF:
|
|
case b_NL:
|
|
case b_ZW:
|
|
break_class[i] = b_AL;
|
|
break;
|
|
default:
|
|
break_class[i] = break_class[i-1];
|
|
}
|
|
}
|
|
else break_class[i] = b_AL;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
switch (break_class[i])
|
|
{
|
|
/* LB11 - don't break before and after word joiner */
|
|
case b_WJ:
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
/* LB12 - don't break after glue */
|
|
case b_GL:
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
/* LB12a */
|
|
if (i > 0)
|
|
{
|
|
if (break_class[i-1] != b_SP && break_class[i-1] != b_BA && break_class[i-1] != b_HY)
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
}
|
|
break;
|
|
/* LB13 */
|
|
case b_CL:
|
|
case b_CP:
|
|
case b_EX:
|
|
case b_IS:
|
|
case b_SY:
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
/* LB14 */
|
|
case b_OP:
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
while (i < count-1 && break_class[i+1] == b_SP) {
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
i++;
|
|
}
|
|
break;
|
|
/* LB15 */
|
|
case b_QU:
|
|
j = i+1;
|
|
while (j < count-1 && break_class[j] == b_SP)
|
|
j++;
|
|
if (break_class[j] == b_OP)
|
|
for (; j > i; j--)
|
|
set_break_condition(j, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
/* LB16 */
|
|
case b_NS:
|
|
j = i-1;
|
|
while(j > 0 && break_class[j] == b_SP)
|
|
j--;
|
|
if (break_class[j] == b_CL || break_class[j] == b_CP)
|
|
for (j++; j <= i; j++)
|
|
set_break_condition(j, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
/* LB17 */
|
|
case b_B2:
|
|
j = i+1;
|
|
while (j < count && break_class[j] == b_SP)
|
|
j++;
|
|
if (break_class[j] == b_B2)
|
|
for (; j > i; j--)
|
|
set_break_condition(j, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < count; i++)
|
|
{
|
|
switch(break_class[i])
|
|
{
|
|
/* LB18 - break is allowed after space */
|
|
case b_SP:
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
|
|
break;
|
|
/* LB19 - don't break before or after quotation mark */
|
|
case b_QU:
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
/* LB20 */
|
|
case b_CB:
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_CAN_BREAK, &state);
|
|
break;
|
|
/* LB21 */
|
|
case b_BA:
|
|
case b_HY:
|
|
case b_NS:
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
case b_BB:
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
/* LB21a, LB21b */
|
|
case b_HL:
|
|
/* LB21a */
|
|
if (i < count-1)
|
|
switch (break_class[i+1])
|
|
{
|
|
case b_HY:
|
|
case b_BA:
|
|
set_break_condition(i+1, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
}
|
|
/* LB21b */
|
|
if (i > 0 && break_class[i-1] == b_SY)
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
break;
|
|
/* LB22 */
|
|
case b_IN:
|
|
if (i > 0)
|
|
{
|
|
switch (break_class[i-1])
|
|
{
|
|
case b_AL:
|
|
case b_HL:
|
|
case b_EX:
|
|
case b_ID:
|
|
case b_IN:
|
|
case b_NU:
|
|
set_break_condition(i, BreakConditionBefore, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (i < count-1)
|
|
{
|
|
/* LB23 */
|
|
if ((break_class[i] == b_ID && break_class[i+1] == b_PO) ||
|
|
(break_class[i] == b_AL && break_class[i+1] == b_NU) ||
|
|
(break_class[i] == b_HL && break_class[i+1] == b_NU) ||
|
|
(break_class[i] == b_NU && break_class[i+1] == b_AL) ||
|
|
(break_class[i] == b_NU && break_class[i+1] == b_HL))
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
/* LB24 */
|
|
if ((break_class[i] == b_PR && break_class[i+1] == b_ID) ||
|
|
(break_class[i] == b_PR && break_class[i+1] == b_AL) ||
|
|
(break_class[i] == b_PR && break_class[i+1] == b_HL) ||
|
|
(break_class[i] == b_PO && break_class[i+1] == b_AL) ||
|
|
(break_class[i] == b_PO && break_class[i+1] == b_HL))
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
|
|
/* LB25 */
|
|
if ((break_class[i] == b_CL && break_class[i+1] == b_PO) ||
|
|
(break_class[i] == b_CP && break_class[i+1] == b_PO) ||
|
|
(break_class[i] == b_CL && break_class[i+1] == b_PR) ||
|
|
(break_class[i] == b_CP && break_class[i+1] == b_PR) ||
|
|
(break_class[i] == b_NU && break_class[i+1] == b_PO) ||
|
|
(break_class[i] == b_NU && break_class[i+1] == b_PR) ||
|
|
(break_class[i] == b_PO && break_class[i+1] == b_OP) ||
|
|
(break_class[i] == b_PO && break_class[i+1] == b_NU) ||
|
|
(break_class[i] == b_PR && break_class[i+1] == b_OP) ||
|
|
(break_class[i] == b_PR && break_class[i+1] == b_NU) ||
|
|
(break_class[i] == b_HY && break_class[i+1] == b_NU) ||
|
|
(break_class[i] == b_IS && break_class[i+1] == b_NU) ||
|
|
(break_class[i] == b_NU && break_class[i+1] == b_NU) ||
|
|
(break_class[i] == b_SY && break_class[i+1] == b_NU))
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
|
|
/* LB26 */
|
|
if (break_class[i] == b_JL)
|
|
{
|
|
switch (break_class[i+1])
|
|
{
|
|
case b_JL:
|
|
case b_JV:
|
|
case b_H2:
|
|
case b_H3:
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
}
|
|
}
|
|
if ((break_class[i] == b_JV || break_class[i] == b_H2) &&
|
|
(break_class[i+1] == b_JV || break_class[i+1] == b_JT))
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
if ((break_class[i] == b_JT || break_class[i] == b_H3) &&
|
|
break_class[i+1] == b_JT)
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
|
|
/* LB27 */
|
|
switch (break_class[i])
|
|
{
|
|
case b_JL:
|
|
case b_JV:
|
|
case b_JT:
|
|
case b_H2:
|
|
case b_H3:
|
|
if (break_class[i+1] == b_IN || break_class[i+1] == b_PO)
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
}
|
|
if (break_class[i] == b_PO)
|
|
{
|
|
switch (break_class[i+1])
|
|
{
|
|
case b_JL:
|
|
case b_JV:
|
|
case b_JT:
|
|
case b_H2:
|
|
case b_H3:
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
}
|
|
}
|
|
|
|
/* LB28 */
|
|
if ((break_class[i] == b_AL && break_class[i+1] == b_AL) ||
|
|
(break_class[i] == b_AL && break_class[i+1] == b_HL) ||
|
|
(break_class[i] == b_HL && break_class[i+1] == b_AL) ||
|
|
(break_class[i] == b_HL && break_class[i+1] == b_HL))
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
|
|
/* LB29 */
|
|
if ((break_class[i] == b_IS && break_class[i+1] == b_AL) ||
|
|
(break_class[i] == b_IS && break_class[i+1] == b_HL))
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
|
|
/* LB30 */
|
|
if ((break_class[i] == b_AL || break_class[i] == b_HL || break_class[i] == b_NU) &&
|
|
break_class[i+1] == b_OP)
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
if (break_class[i] == b_CP &&
|
|
(break_class[i+1] == b_AL || break_class[i] == b_HL || break_class[i] == b_NU))
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
|
|
/* LB30a */
|
|
if (break_class[i] == b_RI && break_class[i+1] == b_RI)
|
|
set_break_condition(i, BreakConditionAfter, DWRITE_BREAK_CONDITION_MAY_NOT_BREAK, &state);
|
|
}
|
|
}
|
|
|
|
heap_free(break_class);
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer_QueryInterface(IDWriteTextAnalyzer2 *iface, REFIID riid, void **obj)
|
|
{
|
|
TRACE("(%s %p)\n", debugstr_guid(riid), obj);
|
|
|
|
if (IsEqualIID(riid, &IID_IDWriteTextAnalyzer2) ||
|
|
IsEqualIID(riid, &IID_IDWriteTextAnalyzer1) ||
|
|
IsEqualIID(riid, &IID_IDWriteTextAnalyzer) ||
|
|
IsEqualIID(riid, &IID_IUnknown))
|
|
{
|
|
*obj = iface;
|
|
return S_OK;
|
|
}
|
|
|
|
*obj = NULL;
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
static ULONG WINAPI dwritetextanalyzer_AddRef(IDWriteTextAnalyzer2 *iface)
|
|
{
|
|
return 2;
|
|
}
|
|
|
|
static ULONG WINAPI dwritetextanalyzer_Release(IDWriteTextAnalyzer2 *iface)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
/* This helper tries to get 'length' chars from a source, allocating a buffer only if source failed to provide enough
|
|
data after a first request. */
|
|
static HRESULT get_text_source_ptr(IDWriteTextAnalysisSource *source, UINT32 position, UINT32 length, const WCHAR **text, WCHAR **buff)
|
|
{
|
|
HRESULT hr;
|
|
UINT32 len;
|
|
|
|
*buff = NULL;
|
|
*text = NULL;
|
|
len = 0;
|
|
hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, position, text, &len);
|
|
if (FAILED(hr)) return hr;
|
|
|
|
if (len < length) {
|
|
UINT32 read;
|
|
|
|
*buff = heap_alloc(length*sizeof(WCHAR));
|
|
if (!*buff)
|
|
return E_OUTOFMEMORY;
|
|
memcpy(*buff, *text, len*sizeof(WCHAR));
|
|
read = len;
|
|
|
|
while (read < length && *text) {
|
|
*text = NULL;
|
|
len = 0;
|
|
hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, read, text, &len);
|
|
if (FAILED(hr)) {
|
|
heap_free(*buff);
|
|
return hr;
|
|
}
|
|
memcpy(*buff + read, *text, min(len, length-read)*sizeof(WCHAR));
|
|
read += len;
|
|
}
|
|
|
|
*text = *buff;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer_AnalyzeScript(IDWriteTextAnalyzer2 *iface,
|
|
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
|
|
{
|
|
WCHAR *buff = NULL;
|
|
const WCHAR *text;
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p %u %u %p)\n", source, position, length, sink);
|
|
|
|
if (length == 0)
|
|
return S_OK;
|
|
|
|
hr = get_text_source_ptr(source, position, length, &text, &buff);
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
hr = analyze_script(text, position, length, sink);
|
|
heap_free(buff);
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer_AnalyzeBidi(IDWriteTextAnalyzer2 *iface,
|
|
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
|
|
{
|
|
UINT8 *levels = NULL, *explicit = NULL;
|
|
UINT8 baselevel, level, explicit_level;
|
|
WCHAR *buff = NULL;
|
|
const WCHAR *text;
|
|
UINT32 pos, i;
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p %u %u %p)\n", source, position, length, sink);
|
|
|
|
if (length == 0)
|
|
return S_OK;
|
|
|
|
hr = get_text_source_ptr(source, position, length, &text, &buff);
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
levels = heap_alloc(length*sizeof(*levels));
|
|
explicit = heap_alloc(length*sizeof(*explicit));
|
|
|
|
if (!levels || !explicit) {
|
|
hr = E_OUTOFMEMORY;
|
|
goto done;
|
|
}
|
|
|
|
baselevel = IDWriteTextAnalysisSource_GetParagraphReadingDirection(source);
|
|
hr = bidi_computelevels(text, length, baselevel, explicit, levels);
|
|
if (FAILED(hr))
|
|
goto done;
|
|
|
|
level = levels[0];
|
|
explicit_level = explicit[0];
|
|
pos = 0;
|
|
for (i = 1; i < length; i++) {
|
|
if (levels[i] != level || explicit[i] != explicit_level) {
|
|
hr = IDWriteTextAnalysisSink_SetBidiLevel(sink, pos, i - pos, explicit_level, level);
|
|
if (FAILED(hr))
|
|
break;
|
|
level = levels[i];
|
|
explicit_level = explicit[i];
|
|
pos = i;
|
|
}
|
|
|
|
if (i == length - 1)
|
|
hr = IDWriteTextAnalysisSink_SetBidiLevel(sink, pos, length - pos, explicit_level, level);
|
|
}
|
|
|
|
done:
|
|
heap_free(explicit);
|
|
heap_free(levels);
|
|
heap_free(buff);
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer_AnalyzeNumberSubstitution(IDWriteTextAnalyzer2 *iface,
|
|
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
|
|
{
|
|
FIXME("(%p %u %u %p): stub\n", source, position, length, sink);
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer_AnalyzeLineBreakpoints(IDWriteTextAnalyzer2 *iface,
|
|
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
|
|
{
|
|
DWRITE_LINE_BREAKPOINT *breakpoints = NULL;
|
|
WCHAR *buff = NULL;
|
|
const WCHAR *text;
|
|
HRESULT hr;
|
|
UINT32 len;
|
|
|
|
TRACE("(%p %u %u %p)\n", source, position, length, sink);
|
|
|
|
if (length == 0)
|
|
return S_OK;
|
|
|
|
/* get some, check for length */
|
|
text = NULL;
|
|
len = 0;
|
|
hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, position, &text, &len);
|
|
if (FAILED(hr)) return hr;
|
|
|
|
if (len < length) {
|
|
UINT32 read;
|
|
|
|
buff = heap_alloc(length*sizeof(WCHAR));
|
|
if (!buff)
|
|
return E_OUTOFMEMORY;
|
|
memcpy(buff, text, len*sizeof(WCHAR));
|
|
read = len;
|
|
|
|
while (read < length && text) {
|
|
text = NULL;
|
|
len = 0;
|
|
hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, read, &text, &len);
|
|
if (FAILED(hr))
|
|
goto done;
|
|
memcpy(&buff[read], text, min(len, length-read)*sizeof(WCHAR));
|
|
read += len;
|
|
}
|
|
|
|
text = buff;
|
|
}
|
|
|
|
breakpoints = heap_alloc(length*sizeof(*breakpoints));
|
|
if (!breakpoints) {
|
|
hr = E_OUTOFMEMORY;
|
|
goto done;
|
|
}
|
|
|
|
hr = analyze_linebreaks(text, length, breakpoints);
|
|
if (FAILED(hr))
|
|
goto done;
|
|
|
|
hr = IDWriteTextAnalysisSink_SetLineBreakpoints(sink, position, length, breakpoints);
|
|
|
|
done:
|
|
heap_free(breakpoints);
|
|
heap_free(buff);
|
|
|
|
return hr;
|
|
}
|
|
|
|
static UINT32 get_opentype_language(const WCHAR *locale)
|
|
{
|
|
UINT32 language = DWRITE_FONT_FEATURE_TAG_DEFAULT;
|
|
|
|
if (locale) {
|
|
WCHAR tag[5];
|
|
if (GetLocaleInfoEx(locale, LOCALE_SOPENTYPELANGUAGETAG, tag, sizeof(tag)/sizeof(WCHAR)))
|
|
language = DWRITE_MAKE_OPENTYPE_TAG(tag[0],tag[1],tag[2],tag[3]);
|
|
}
|
|
|
|
return language;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer_GetGlyphs(IDWriteTextAnalyzer2 *iface,
|
|
WCHAR const* text, UINT32 length, IDWriteFontFace* fontface, BOOL is_sideways,
|
|
BOOL is_rtl, DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale,
|
|
IDWriteNumberSubstitution* substitution, DWRITE_TYPOGRAPHIC_FEATURES const** features,
|
|
UINT32 const* feature_range_len, UINT32 feature_ranges, UINT32 max_glyph_count,
|
|
UINT16* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* text_props, UINT16* glyph_indices,
|
|
DWRITE_SHAPING_GLYPH_PROPERTIES* glyph_props, UINT32* actual_glyph_count)
|
|
{
|
|
const struct dwritescript_properties *scriptprops;
|
|
struct scriptshaping_context context;
|
|
struct scriptshaping_cache *cache = NULL;
|
|
BOOL update_cluster, need_vertical;
|
|
IDWriteFontFace1 *fontface1;
|
|
WCHAR *string;
|
|
UINT32 i, g;
|
|
HRESULT hr = S_OK;
|
|
UINT16 script;
|
|
|
|
TRACE("(%s:%u %p %d %d %p %s %p %p %p %u %u %p %p %p %p %p)\n", debugstr_wn(text, length),
|
|
length, fontface, is_sideways, is_rtl, analysis, debugstr_w(locale), substitution, features, feature_range_len,
|
|
feature_ranges, max_glyph_count, clustermap, text_props, glyph_indices, glyph_props, actual_glyph_count);
|
|
|
|
script = analysis->script > Script_LastId ? Script_Unknown : analysis->script;
|
|
|
|
if (max_glyph_count < length)
|
|
return E_NOT_SUFFICIENT_BUFFER;
|
|
|
|
if (substitution)
|
|
FIXME("number substitution is not supported.\n");
|
|
|
|
for (i = 0; i < length; i++) {
|
|
/* FIXME: set to better values */
|
|
glyph_props[i].justification = text[i] == ' ' ? SCRIPT_JUSTIFY_BLANK : SCRIPT_JUSTIFY_CHARACTER;
|
|
glyph_props[i].isClusterStart = 1;
|
|
glyph_props[i].isDiacritic = 0;
|
|
glyph_props[i].isZeroWidthSpace = 0;
|
|
glyph_props[i].reserved = 0;
|
|
|
|
/* FIXME: have the shaping engine set this */
|
|
text_props[i].isShapedAlone = 0;
|
|
text_props[i].reserved = 0;
|
|
|
|
clustermap[i] = i;
|
|
}
|
|
|
|
for (; i < max_glyph_count; i++) {
|
|
glyph_props[i].justification = SCRIPT_JUSTIFY_NONE;
|
|
glyph_props[i].isClusterStart = 0;
|
|
glyph_props[i].isDiacritic = 0;
|
|
glyph_props[i].isZeroWidthSpace = 0;
|
|
glyph_props[i].reserved = 0;
|
|
}
|
|
|
|
string = heap_alloc(sizeof(WCHAR)*length);
|
|
if (!string)
|
|
return E_OUTOFMEMORY;
|
|
|
|
hr = IDWriteFontFace_QueryInterface(fontface, &IID_IDWriteFontFace1, (void**)&fontface1);
|
|
if (FAILED(hr))
|
|
WARN("failed to get IDWriteFontFace1\n");
|
|
|
|
need_vertical = is_sideways && fontface1 && IDWriteFontFace1_HasVerticalGlyphVariants(fontface1);
|
|
|
|
for (i = 0, g = 0, update_cluster = FALSE; i < length; i++) {
|
|
UINT32 codepoint;
|
|
|
|
if (!update_cluster) {
|
|
codepoint = decode_surrogate_pair(text, i, length);
|
|
if (!codepoint) {
|
|
codepoint = is_rtl ? bidi_get_mirrored_char(text[i]) : text[i];
|
|
string[i] = codepoint;
|
|
}
|
|
else {
|
|
string[i] = text[i];
|
|
string[i+1] = text[i+1];
|
|
update_cluster = TRUE;
|
|
}
|
|
|
|
hr = IDWriteFontFace_GetGlyphIndices(fontface, &codepoint, 1, &glyph_indices[g]);
|
|
if (FAILED(hr))
|
|
goto done;
|
|
|
|
if (need_vertical) {
|
|
UINT16 vertical;
|
|
|
|
hr = IDWriteFontFace1_GetVerticalGlyphVariants(fontface1, 1, &glyph_indices[g], &vertical);
|
|
if (hr == S_OK)
|
|
glyph_indices[g] = vertical;
|
|
}
|
|
|
|
g++;
|
|
}
|
|
else {
|
|
INT32 k;
|
|
|
|
update_cluster = FALSE;
|
|
/* mark surrogate halves with same cluster */
|
|
clustermap[i] = clustermap[i-1];
|
|
/* update following clusters */
|
|
for (k = i + 1; k >= 0 && k < length; k++)
|
|
clustermap[k]--;
|
|
}
|
|
}
|
|
*actual_glyph_count = g;
|
|
|
|
hr = create_scriptshaping_cache(fontface, &cache);
|
|
if (FAILED(hr))
|
|
goto done;
|
|
|
|
context.cache = cache;
|
|
context.text = text;
|
|
context.length = length;
|
|
context.is_rtl = is_rtl;
|
|
context.max_glyph_count = max_glyph_count;
|
|
context.language_tag = get_opentype_language(locale);
|
|
|
|
scriptprops = &dwritescripts_properties[script];
|
|
if (scriptprops->ops && scriptprops->ops->contextual_shaping) {
|
|
hr = scriptprops->ops->contextual_shaping(&context, clustermap, glyph_indices, actual_glyph_count);
|
|
if (FAILED(hr))
|
|
goto done;
|
|
}
|
|
|
|
/* FIXME: apply default features */
|
|
|
|
if (scriptprops->ops && scriptprops->ops->set_text_glyphs_props)
|
|
hr = scriptprops->ops->set_text_glyphs_props(&context, clustermap, glyph_indices, *actual_glyph_count, text_props, glyph_props);
|
|
else
|
|
hr = default_shaping_ops.set_text_glyphs_props(&context, clustermap, glyph_indices, *actual_glyph_count, text_props, glyph_props);
|
|
|
|
done:
|
|
if (fontface1)
|
|
IDWriteFontFace1_Release(fontface1);
|
|
release_scriptshaping_cache(cache);
|
|
heap_free(string);
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer_GetGlyphPlacements(IDWriteTextAnalyzer2 *iface,
|
|
WCHAR const* text, UINT16 const* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* props,
|
|
UINT32 text_len, UINT16 const* glyphs, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
|
|
UINT32 glyph_count, IDWriteFontFace *fontface, FLOAT emSize, BOOL is_sideways, BOOL is_rtl,
|
|
DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale, DWRITE_TYPOGRAPHIC_FEATURES const** features,
|
|
UINT32 const* feature_range_len, UINT32 feature_ranges, FLOAT *advances, DWRITE_GLYPH_OFFSET *offsets)
|
|
{
|
|
DWRITE_FONT_METRICS metrics;
|
|
IDWriteFontFace1 *fontface1;
|
|
HRESULT hr;
|
|
UINT32 i;
|
|
|
|
TRACE("(%s %p %p %u %p %p %u %p %.2f %d %d %p %s %p %p %u %p %p)\n", debugstr_wn(text, text_len),
|
|
clustermap, props, text_len, glyphs, glyph_props, glyph_count, fontface, emSize, is_sideways,
|
|
is_rtl, analysis, debugstr_w(locale), features, feature_range_len, feature_ranges, advances, offsets);
|
|
|
|
if (glyph_count == 0)
|
|
return S_OK;
|
|
|
|
hr = IDWriteFontFace_QueryInterface(fontface, &IID_IDWriteFontFace1, (void**)&fontface1);
|
|
if (FAILED(hr)) {
|
|
WARN("failed to get IDWriteFontFace1.\n");
|
|
return hr;
|
|
}
|
|
|
|
IDWriteFontFace_GetMetrics(fontface, &metrics);
|
|
for (i = 0; i < glyph_count; i++) {
|
|
INT32 a;
|
|
|
|
hr = IDWriteFontFace1_GetDesignGlyphAdvances(fontface1, 1, &glyphs[i], &a, is_sideways);
|
|
if (FAILED(hr))
|
|
a = 0;
|
|
|
|
advances[i] = get_scaled_advance_width(a, emSize, &metrics);
|
|
offsets[i].advanceOffset = 0.0f;
|
|
offsets[i].ascenderOffset = 0.0f;
|
|
}
|
|
|
|
/* FIXME: actually apply features */
|
|
|
|
IDWriteFontFace1_Release(fontface1);
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer_GetGdiCompatibleGlyphPlacements(IDWriteTextAnalyzer2 *iface,
|
|
WCHAR const* text, UINT16 const* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* props,
|
|
UINT32 text_len, UINT16 const* glyphs, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
|
|
UINT32 glyph_count, IDWriteFontFace *fontface, FLOAT emSize, FLOAT ppdip,
|
|
DWRITE_MATRIX const* transform, BOOL use_gdi_natural, BOOL is_sideways, BOOL is_rtl,
|
|
DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale, DWRITE_TYPOGRAPHIC_FEATURES const** features,
|
|
UINT32 const* feature_range_lengths, UINT32 feature_ranges, FLOAT *advances, DWRITE_GLYPH_OFFSET *offsets)
|
|
{
|
|
DWRITE_FONT_METRICS metrics;
|
|
IDWriteFontFace1 *fontface1;
|
|
HRESULT hr;
|
|
UINT32 i;
|
|
|
|
TRACE("(%s %p %p %u %p %p %u %p %.2f %.2f %p %d %d %d %p %s %p %p %u %p %p)\n", debugstr_wn(text, text_len),
|
|
clustermap, props, text_len, glyphs, glyph_props, glyph_count, fontface, emSize, ppdip,
|
|
transform, use_gdi_natural, is_sideways, is_rtl, analysis, debugstr_w(locale), features, feature_range_lengths,
|
|
feature_ranges, advances, offsets);
|
|
|
|
if (glyph_count == 0)
|
|
return S_OK;
|
|
|
|
hr = IDWriteFontFace_QueryInterface(fontface, &IID_IDWriteFontFace1, (void**)&fontface1);
|
|
if (FAILED(hr)) {
|
|
WARN("failed to get IDWriteFontFace1.\n");
|
|
return hr;
|
|
}
|
|
|
|
hr = IDWriteFontFace_GetGdiCompatibleMetrics(fontface, emSize, ppdip, transform, &metrics);
|
|
if (FAILED(hr)) {
|
|
IDWriteFontFace1_Release(fontface1);
|
|
WARN("failed to get compat metrics, 0x%08x\n", hr);
|
|
return hr;
|
|
}
|
|
for (i = 0; i < glyph_count; i++) {
|
|
INT32 a;
|
|
|
|
hr = IDWriteFontFace1_GetGdiCompatibleGlyphAdvances(fontface1, emSize, ppdip,
|
|
transform, use_gdi_natural, is_sideways, 1, &glyphs[i], &a);
|
|
if (FAILED(hr))
|
|
advances[i] = 0.0f;
|
|
else
|
|
advances[i] = floorf(a * emSize * ppdip / metrics.designUnitsPerEm + 0.5f) / ppdip;
|
|
offsets[i].advanceOffset = 0.0f;
|
|
offsets[i].ascenderOffset = 0.0f;
|
|
}
|
|
|
|
/* FIXME: actually apply features */
|
|
|
|
IDWriteFontFace1_Release(fontface1);
|
|
return S_OK;
|
|
}
|
|
|
|
static inline FLOAT get_cluster_advance(const FLOAT *advances, UINT32 start, UINT32 end)
|
|
{
|
|
FLOAT advance = 0.0f;
|
|
for (; start < end; start++)
|
|
advance += advances[start];
|
|
return advance;
|
|
}
|
|
|
|
static void apply_single_glyph_spacing(FLOAT leading_spacing, FLOAT trailing_spacing,
|
|
FLOAT min_advance_width, UINT32 g, FLOAT const *advances, DWRITE_GLYPH_OFFSET const *offsets,
|
|
DWRITE_SHAPING_GLYPH_PROPERTIES const *props, FLOAT *modified_advances, DWRITE_GLYPH_OFFSET *modified_offsets)
|
|
{
|
|
BOOL reduced = leading_spacing < 0.0f || trailing_spacing < 0.0f;
|
|
FLOAT advance = advances[g];
|
|
FLOAT origin = 0.0f;
|
|
|
|
if (props[g].isZeroWidthSpace) {
|
|
modified_advances[g] = advances[g];
|
|
modified_offsets[g] = offsets[g];
|
|
return;
|
|
}
|
|
|
|
/* first apply negative spacing and check if we hit minimum width */
|
|
if (leading_spacing < 0.0f) {
|
|
advance += leading_spacing;
|
|
origin -= leading_spacing;
|
|
}
|
|
if (trailing_spacing < 0.0f)
|
|
advance += trailing_spacing;
|
|
|
|
if (advance < min_advance_width) {
|
|
FLOAT half = (min_advance_width - advance) / 2.0f;
|
|
|
|
if (!reduced)
|
|
origin -= half;
|
|
else if (leading_spacing < 0.0f && trailing_spacing < 0.0f)
|
|
origin -= half;
|
|
else if (leading_spacing < 0.0f)
|
|
origin -= min_advance_width - advance;
|
|
|
|
advance = min_advance_width;
|
|
}
|
|
|
|
/* now apply positive spacing adjustments */
|
|
if (leading_spacing > 0.0f) {
|
|
advance += leading_spacing;
|
|
origin -= leading_spacing;
|
|
}
|
|
if (trailing_spacing > 0.0f)
|
|
advance += trailing_spacing;
|
|
|
|
modified_advances[g] = advance;
|
|
modified_offsets[g].advanceOffset = offsets[g].advanceOffset - origin;
|
|
/* ascender is never touched, it's orthogonal to reading direction and is not
|
|
affected by advance adjustments */
|
|
modified_offsets[g].ascenderOffset = offsets[g].ascenderOffset;
|
|
}
|
|
|
|
static void apply_cluster_spacing(FLOAT leading_spacing, FLOAT trailing_spacing, FLOAT min_advance_width,
|
|
UINT32 start, UINT32 end, FLOAT const *advances, DWRITE_GLYPH_OFFSET const *offsets,
|
|
FLOAT *modified_advances, DWRITE_GLYPH_OFFSET *modified_offsets)
|
|
{
|
|
BOOL reduced = leading_spacing < 0.0f || trailing_spacing < 0.0f;
|
|
FLOAT advance = get_cluster_advance(advances, start, end);
|
|
FLOAT origin = 0.0f;
|
|
UINT16 g;
|
|
|
|
modified_advances[start] = advances[start];
|
|
modified_advances[end-1] = advances[end-1];
|
|
|
|
/* first apply negative spacing and check if we hit minimum width */
|
|
if (leading_spacing < 0.0f) {
|
|
advance += leading_spacing;
|
|
modified_advances[start] += leading_spacing;
|
|
origin -= leading_spacing;
|
|
}
|
|
if (trailing_spacing < 0.0f) {
|
|
advance += trailing_spacing;
|
|
modified_advances[end-1] += trailing_spacing;
|
|
}
|
|
|
|
advance = min_advance_width - advance;
|
|
if (advance > 0.0f) {
|
|
/* additional spacing is only applied to leading and trailing glyph */
|
|
FLOAT half = advance / 2.0f;
|
|
|
|
if (!reduced) {
|
|
origin -= half;
|
|
modified_advances[start] += half;
|
|
modified_advances[end-1] += half;
|
|
}
|
|
else if (leading_spacing < 0.0f && trailing_spacing < 0.0f) {
|
|
origin -= half;
|
|
modified_advances[start] += half;
|
|
modified_advances[end-1] += half;
|
|
}
|
|
else if (leading_spacing < 0.0f) {
|
|
origin -= advance;
|
|
modified_advances[start] += advance;
|
|
}
|
|
else
|
|
modified_advances[end-1] += advance;
|
|
}
|
|
|
|
/* now apply positive spacing adjustments */
|
|
if (leading_spacing > 0.0f) {
|
|
modified_advances[start] += leading_spacing;
|
|
origin -= leading_spacing;
|
|
}
|
|
if (trailing_spacing > 0.0f)
|
|
modified_advances[end-1] += trailing_spacing;
|
|
|
|
for (g = start; g < end; g++) {
|
|
if (g == start) {
|
|
modified_offsets[g].advanceOffset = offsets[g].advanceOffset - origin;
|
|
modified_offsets[g].ascenderOffset = offsets[g].ascenderOffset;
|
|
}
|
|
else if (g == end - 1)
|
|
/* trailing glyph offset is not adjusted */
|
|
modified_offsets[g] = offsets[g];
|
|
else {
|
|
/* for all glyphs within a cluster use original advances and offsets */
|
|
modified_advances[g] = advances[g];
|
|
modified_offsets[g] = offsets[g];
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline UINT32 get_cluster_length(UINT16 const *clustermap, UINT32 start, UINT32 text_len)
|
|
{
|
|
UINT16 g = clustermap[start];
|
|
UINT32 length = 1;
|
|
|
|
while (start < text_len && clustermap[++start] == g)
|
|
length++;
|
|
return length;
|
|
}
|
|
|
|
/* Applies spacing adjustments to clusters.
|
|
|
|
Adjustments are applied in the following order:
|
|
|
|
1. Negative adjustments
|
|
|
|
Leading and trailing spacing could be negative, at this step
|
|
only negative ones are actually applied. Leading spacing is only
|
|
applied to leading glyph, trailing - to trailing glyph.
|
|
|
|
2. Minimum advance width
|
|
|
|
Advances could only be reduced at this point or unchanged. In any
|
|
case it's checked if cluster advance width is less than minimum width.
|
|
If it's the case advance width is incremented up to minimum value.
|
|
|
|
Important part is the direction in which this increment is applied;
|
|
it depends on direction from which total cluster advance was trimmed
|
|
at step 1. So it could be incremented from leading, trailing, or both
|
|
sides. When applied to both sides, each side gets half of difference
|
|
that brings advance to minimum width.
|
|
|
|
3. Positive adjustments
|
|
|
|
After minimum width rule was applied, positive spacing is applied in the same
|
|
way as negative one on step 1.
|
|
|
|
Glyph offset for leading glyph is adjusted too in a way that glyph origin
|
|
keeps its position in coordinate system where initial advance width is counted
|
|
from 0.
|
|
|
|
Glyph properties
|
|
|
|
It's known that isZeroWidthSpace property keeps initial advance from changing.
|
|
|
|
TODO: test other properties; make isZeroWidthSpace work properly for clusters
|
|
with more than one glyph.
|
|
|
|
*/
|
|
static HRESULT WINAPI dwritetextanalyzer1_ApplyCharacterSpacing(IDWriteTextAnalyzer2 *iface,
|
|
FLOAT leading_spacing, FLOAT trailing_spacing, FLOAT min_advance_width, UINT32 len,
|
|
UINT32 glyph_count, UINT16 const *clustermap, FLOAT const *advances, DWRITE_GLYPH_OFFSET const *offsets,
|
|
DWRITE_SHAPING_GLYPH_PROPERTIES const *props, FLOAT *modified_advances, DWRITE_GLYPH_OFFSET *modified_offsets)
|
|
{
|
|
UINT16 start;
|
|
|
|
TRACE("(%.2f %.2f %.2f %u %u %p %p %p %p %p %p)\n", leading_spacing, trailing_spacing, min_advance_width,
|
|
len, glyph_count, clustermap, advances, offsets, props, modified_advances, modified_offsets);
|
|
|
|
if (min_advance_width < 0.0f) {
|
|
memset(modified_advances, 0, glyph_count*sizeof(*modified_advances));
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
/* minimum advance is not applied if no adjustments were made */
|
|
if (leading_spacing == 0.0f && trailing_spacing == 0.0f) {
|
|
memmove(modified_advances, advances, glyph_count*sizeof(*advances));
|
|
memmove(modified_offsets, offsets, glyph_count*sizeof(*offsets));
|
|
return S_OK;
|
|
}
|
|
|
|
for (start = 0; start < len;) {
|
|
UINT32 length = get_cluster_length(clustermap, start, len);
|
|
|
|
if (length == 1) {
|
|
UINT32 g = clustermap[start];
|
|
|
|
apply_single_glyph_spacing(leading_spacing, trailing_spacing, min_advance_width,
|
|
g, advances, offsets, props, modified_advances, modified_offsets);
|
|
}
|
|
else {
|
|
UINT32 g_start, g_end;
|
|
|
|
g_start = clustermap[start];
|
|
g_end = (start + length < len) ? clustermap[start + length] : glyph_count;
|
|
|
|
apply_cluster_spacing(leading_spacing, trailing_spacing, min_advance_width,
|
|
g_start, g_end, advances, offsets, modified_advances, modified_offsets);
|
|
}
|
|
|
|
start += length;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer1_GetBaseline(IDWriteTextAnalyzer2 *iface, IDWriteFontFace *face,
|
|
DWRITE_BASELINE baseline, BOOL vertical, BOOL is_simulation_allowed, DWRITE_SCRIPT_ANALYSIS sa,
|
|
const WCHAR *localeName, INT32 *baseline_coord, BOOL *exists)
|
|
{
|
|
FIXME("(%p %d %d %u %s %p %p): stub\n", face, vertical, is_simulation_allowed, sa.script, debugstr_w(localeName),
|
|
baseline_coord, exists);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer1_AnalyzeVerticalGlyphOrientation(IDWriteTextAnalyzer2 *iface,
|
|
IDWriteTextAnalysisSource1* source, UINT32 text_pos, UINT32 len, IDWriteTextAnalysisSink1 *sink)
|
|
{
|
|
FIXME("(%p %u %u %p): stub\n", source, text_pos, len, sink);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer1_GetGlyphOrientationTransform(IDWriteTextAnalyzer2 *iface,
|
|
DWRITE_GLYPH_ORIENTATION_ANGLE angle, BOOL is_sideways, DWRITE_MATRIX *transform)
|
|
{
|
|
TRACE("(%d %d %p)\n", angle, is_sideways, transform);
|
|
return IDWriteTextAnalyzer2_GetGlyphOrientationTransform(iface, angle, is_sideways, 0.0, 0.0, transform);
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer1_GetScriptProperties(IDWriteTextAnalyzer2 *iface, DWRITE_SCRIPT_ANALYSIS sa,
|
|
DWRITE_SCRIPT_PROPERTIES *props)
|
|
{
|
|
TRACE("(%u %p)\n", sa.script, props);
|
|
|
|
if (sa.script > Script_LastId)
|
|
return E_INVALIDARG;
|
|
|
|
*props = dwritescripts_properties[sa.script].props;
|
|
return S_OK;
|
|
}
|
|
|
|
static inline BOOL is_char_from_simple_script(WCHAR c)
|
|
{
|
|
if (IS_HIGH_SURROGATE(c) || IS_LOW_SURROGATE(c))
|
|
return FALSE;
|
|
else {
|
|
UINT16 script = get_char_script(c);
|
|
return !dwritescripts_properties[script].is_complex;
|
|
}
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer1_GetTextComplexity(IDWriteTextAnalyzer2 *iface, const WCHAR *text,
|
|
UINT32 len, IDWriteFontFace *face, BOOL *is_simple, UINT32 *len_read, UINT16 *indices)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
int i;
|
|
|
|
TRACE("(%s:%u %p %p %p %p)\n", debugstr_wn(text, len), len, face, is_simple, len_read, indices);
|
|
|
|
*is_simple = FALSE;
|
|
*len_read = 0;
|
|
|
|
if (!face)
|
|
return E_INVALIDARG;
|
|
|
|
if (len == 0) {
|
|
*is_simple = TRUE;
|
|
return S_OK;
|
|
}
|
|
|
|
*is_simple = text[0] && is_char_from_simple_script(text[0]);
|
|
for (i = 1; i < len && text[i]; i++) {
|
|
if (is_char_from_simple_script(text[i])) {
|
|
if (!*is_simple)
|
|
break;
|
|
}
|
|
else
|
|
*is_simple = FALSE;
|
|
}
|
|
|
|
*len_read = i;
|
|
|
|
/* fetch indices */
|
|
if (*is_simple && indices) {
|
|
UINT32 *codepoints = heap_alloc(*len_read*sizeof(UINT32));
|
|
if (!codepoints)
|
|
return E_OUTOFMEMORY;
|
|
|
|
for (i = 0; i < *len_read; i++)
|
|
codepoints[i] = text[i];
|
|
|
|
hr = IDWriteFontFace_GetGlyphIndices(face, codepoints, *len_read, indices);
|
|
heap_free(codepoints);
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer1_GetJustificationOpportunities(IDWriteTextAnalyzer2 *iface,
|
|
IDWriteFontFace *face, FLOAT font_em_size, DWRITE_SCRIPT_ANALYSIS sa, UINT32 length, UINT32 glyph_count,
|
|
const WCHAR *text, const UINT16 *clustermap, const DWRITE_SHAPING_GLYPH_PROPERTIES *prop, DWRITE_JUSTIFICATION_OPPORTUNITY *jo)
|
|
{
|
|
FIXME("(%p %.2f %u %u %u %s %p %p %p): stub\n", face, font_em_size, sa.script, length, glyph_count,
|
|
debugstr_wn(text, length), clustermap, prop, jo);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer1_JustifyGlyphAdvances(IDWriteTextAnalyzer2 *iface,
|
|
FLOAT width, UINT32 glyph_count, const DWRITE_JUSTIFICATION_OPPORTUNITY *jo, const FLOAT *advances,
|
|
const DWRITE_GLYPH_OFFSET *offsets, FLOAT *justifiedadvances, DWRITE_GLYPH_OFFSET *justifiedoffsets)
|
|
{
|
|
FIXME("(%.2f %u %p %p %p %p %p): stub\n", width, glyph_count, jo, advances, offsets, justifiedadvances,
|
|
justifiedoffsets);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer1_GetJustifiedGlyphs(IDWriteTextAnalyzer2 *iface,
|
|
IDWriteFontFace *face, FLOAT font_em_size, DWRITE_SCRIPT_ANALYSIS sa, UINT32 length,
|
|
UINT32 glyph_count, UINT32 max_glyphcount, const UINT16 *clustermap, const UINT16 *indices,
|
|
const FLOAT *advances, const FLOAT *justifiedadvances, const DWRITE_GLYPH_OFFSET *justifiedoffsets,
|
|
const DWRITE_SHAPING_GLYPH_PROPERTIES *prop, UINT32 *actual_count, UINT16 *modified_clustermap,
|
|
UINT16 *modified_indices, FLOAT *modified_advances, DWRITE_GLYPH_OFFSET *modified_offsets)
|
|
{
|
|
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,
|
|
length, glyph_count, max_glyphcount, clustermap, indices, advances, justifiedadvances, justifiedoffsets,
|
|
prop, actual_count, modified_clustermap, modified_indices, modified_advances, modified_offsets);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer2_GetGlyphOrientationTransform(IDWriteTextAnalyzer2 *iface,
|
|
DWRITE_GLYPH_ORIENTATION_ANGLE angle, BOOL is_sideways, FLOAT originX, FLOAT originY, DWRITE_MATRIX *m)
|
|
{
|
|
static const DWRITE_MATRIX transforms[] = {
|
|
{ 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f },
|
|
{ 0.0f, 1.0f, -1.0f, 0.0f, 0.0f, 0.0f },
|
|
{ -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f },
|
|
{ 0.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f }
|
|
};
|
|
|
|
TRACE("(%d %d %.2f %.2f %p)\n", angle, is_sideways, originX, originY, m);
|
|
|
|
if ((UINT32)angle > DWRITE_GLYPH_ORIENTATION_ANGLE_270_DEGREES) {
|
|
memset(m, 0, sizeof(*m));
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
/* for sideways case simply rotate 90 degrees more */
|
|
if (is_sideways) {
|
|
switch (angle) {
|
|
case DWRITE_GLYPH_ORIENTATION_ANGLE_0_DEGREES:
|
|
angle = DWRITE_GLYPH_ORIENTATION_ANGLE_90_DEGREES;
|
|
break;
|
|
case DWRITE_GLYPH_ORIENTATION_ANGLE_90_DEGREES:
|
|
angle = DWRITE_GLYPH_ORIENTATION_ANGLE_180_DEGREES;
|
|
break;
|
|
case DWRITE_GLYPH_ORIENTATION_ANGLE_180_DEGREES:
|
|
angle = DWRITE_GLYPH_ORIENTATION_ANGLE_270_DEGREES;
|
|
break;
|
|
case DWRITE_GLYPH_ORIENTATION_ANGLE_270_DEGREES:
|
|
angle = DWRITE_GLYPH_ORIENTATION_ANGLE_0_DEGREES;
|
|
break;
|
|
default:
|
|
;
|
|
}
|
|
}
|
|
|
|
*m = transforms[angle];
|
|
|
|
/* shift components represent transform necessary to get from original point to
|
|
rotated one in new coordinate system */
|
|
if ((originX != 0.0f || originY != 0.0f) && angle != DWRITE_GLYPH_ORIENTATION_ANGLE_0_DEGREES) {
|
|
m->dx = originX - (m->m11 * originX + m->m21 * originY);
|
|
m->dy = originY - (m->m12 * originX + m->m22 * originY);
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer2_GetTypographicFeatures(IDWriteTextAnalyzer2 *iface,
|
|
IDWriteFontFace *fontface, DWRITE_SCRIPT_ANALYSIS sa, const WCHAR *locale,
|
|
UINT32 max_tagcount, UINT32 *actual_tagcount, DWRITE_FONT_FEATURE_TAG *tags)
|
|
{
|
|
const struct dwritescript_properties *props;
|
|
HRESULT hr = S_OK;
|
|
UINT32 language;
|
|
|
|
TRACE("(%p %u %s %u %p %p)\n", fontface, sa.script, debugstr_w(locale), max_tagcount, actual_tagcount,
|
|
tags);
|
|
|
|
if (sa.script > Script_LastId)
|
|
return E_INVALIDARG;
|
|
|
|
language = get_opentype_language(locale);
|
|
props = &dwritescripts_properties[sa.script];
|
|
*actual_tagcount = 0;
|
|
|
|
if (props->scriptalttag)
|
|
hr = opentype_get_typographic_features(fontface, props->scriptalttag, language, max_tagcount, actual_tagcount, tags);
|
|
|
|
if (*actual_tagcount == 0)
|
|
hr = opentype_get_typographic_features(fontface, props->scripttag, language, max_tagcount, actual_tagcount, tags);
|
|
|
|
return hr;
|
|
};
|
|
|
|
static HRESULT WINAPI dwritetextanalyzer2_CheckTypographicFeature(IDWriteTextAnalyzer2 *iface,
|
|
IDWriteFontFace *face, DWRITE_SCRIPT_ANALYSIS sa, const WCHAR *localeName,
|
|
DWRITE_FONT_FEATURE_TAG feature, UINT32 glyph_count, const UINT16 *indices, UINT8 *feature_applies)
|
|
{
|
|
FIXME("(%p %u %s %x %u %p %p): stub\n", face, sa.script, debugstr_w(localeName), feature, glyph_count, indices,
|
|
feature_applies);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static const struct IDWriteTextAnalyzer2Vtbl textanalyzervtbl = {
|
|
dwritetextanalyzer_QueryInterface,
|
|
dwritetextanalyzer_AddRef,
|
|
dwritetextanalyzer_Release,
|
|
dwritetextanalyzer_AnalyzeScript,
|
|
dwritetextanalyzer_AnalyzeBidi,
|
|
dwritetextanalyzer_AnalyzeNumberSubstitution,
|
|
dwritetextanalyzer_AnalyzeLineBreakpoints,
|
|
dwritetextanalyzer_GetGlyphs,
|
|
dwritetextanalyzer_GetGlyphPlacements,
|
|
dwritetextanalyzer_GetGdiCompatibleGlyphPlacements,
|
|
dwritetextanalyzer1_ApplyCharacterSpacing,
|
|
dwritetextanalyzer1_GetBaseline,
|
|
dwritetextanalyzer1_AnalyzeVerticalGlyphOrientation,
|
|
dwritetextanalyzer1_GetGlyphOrientationTransform,
|
|
dwritetextanalyzer1_GetScriptProperties,
|
|
dwritetextanalyzer1_GetTextComplexity,
|
|
dwritetextanalyzer1_GetJustificationOpportunities,
|
|
dwritetextanalyzer1_JustifyGlyphAdvances,
|
|
dwritetextanalyzer1_GetJustifiedGlyphs,
|
|
dwritetextanalyzer2_GetGlyphOrientationTransform,
|
|
dwritetextanalyzer2_GetTypographicFeatures,
|
|
dwritetextanalyzer2_CheckTypographicFeature
|
|
};
|
|
|
|
static IDWriteTextAnalyzer2 textanalyzer = { &textanalyzervtbl };
|
|
|
|
HRESULT get_textanalyzer(IDWriteTextAnalyzer **ret)
|
|
{
|
|
*ret = (IDWriteTextAnalyzer*)&textanalyzer;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI dwritenumbersubstitution_QueryInterface(IDWriteNumberSubstitution *iface, REFIID riid, void **obj)
|
|
{
|
|
struct dwrite_numbersubstitution *This = impl_from_IDWriteNumberSubstitution(iface);
|
|
|
|
TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
|
|
|
|
if (IsEqualIID(riid, &IID_IDWriteNumberSubstitution) ||
|
|
IsEqualIID(riid, &IID_IUnknown))
|
|
{
|
|
*obj = iface;
|
|
IDWriteNumberSubstitution_AddRef(iface);
|
|
return S_OK;
|
|
}
|
|
|
|
*obj = NULL;
|
|
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
static ULONG WINAPI dwritenumbersubstitution_AddRef(IDWriteNumberSubstitution *iface)
|
|
{
|
|
struct dwrite_numbersubstitution *This = impl_from_IDWriteNumberSubstitution(iface);
|
|
ULONG ref = InterlockedIncrement(&This->ref);
|
|
TRACE("(%p)->(%d)\n", This, ref);
|
|
return ref;
|
|
}
|
|
|
|
static ULONG WINAPI dwritenumbersubstitution_Release(IDWriteNumberSubstitution *iface)
|
|
{
|
|
struct dwrite_numbersubstitution *This = impl_from_IDWriteNumberSubstitution(iface);
|
|
ULONG ref = InterlockedDecrement(&This->ref);
|
|
|
|
TRACE("(%p)->(%d)\n", This, ref);
|
|
|
|
if (!ref) {
|
|
heap_free(This->locale);
|
|
heap_free(This);
|
|
}
|
|
|
|
return ref;
|
|
}
|
|
|
|
static const struct IDWriteNumberSubstitutionVtbl numbersubstitutionvtbl = {
|
|
dwritenumbersubstitution_QueryInterface,
|
|
dwritenumbersubstitution_AddRef,
|
|
dwritenumbersubstitution_Release
|
|
};
|
|
|
|
HRESULT create_numbersubstitution(DWRITE_NUMBER_SUBSTITUTION_METHOD method, const WCHAR *locale,
|
|
BOOL ignore_user_override, IDWriteNumberSubstitution **ret)
|
|
{
|
|
struct dwrite_numbersubstitution *substitution;
|
|
|
|
*ret = NULL;
|
|
|
|
if ((UINT32)method > DWRITE_NUMBER_SUBSTITUTION_METHOD_TRADITIONAL)
|
|
return E_INVALIDARG;
|
|
|
|
if (method != DWRITE_NUMBER_SUBSTITUTION_METHOD_NONE && !IsValidLocaleName(locale))
|
|
return E_INVALIDARG;
|
|
|
|
substitution = heap_alloc(sizeof(*substitution));
|
|
if (!substitution)
|
|
return E_OUTOFMEMORY;
|
|
|
|
substitution->IDWriteNumberSubstitution_iface.lpVtbl = &numbersubstitutionvtbl;
|
|
substitution->ref = 1;
|
|
substitution->ignore_user_override = ignore_user_override;
|
|
substitution->method = method;
|
|
substitution->locale = heap_strdupW(locale);
|
|
if (locale && !substitution->locale) {
|
|
heap_free(substitution);
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
*ret = &substitution->IDWriteNumberSubstitution_iface;
|
|
return S_OK;
|
|
}
|
|
|
|
/* IDWriteFontFallback */
|
|
static HRESULT WINAPI fontfallback_QueryInterface(IDWriteFontFallback *iface, REFIID riid, void **obj)
|
|
{
|
|
struct dwrite_fontfallback *fallback = impl_from_IDWriteFontFallback(iface);
|
|
|
|
TRACE("(%p)->(%s %p)\n", fallback, debugstr_guid(riid), obj);
|
|
|
|
if (IsEqualIID(riid, &IID_IDWriteFontFallback) || IsEqualIID(riid, &IID_IUnknown)) {
|
|
*obj = iface;
|
|
IDWriteFontFallback_AddRef(iface);
|
|
return S_OK;
|
|
}
|
|
|
|
*obj = NULL;
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
static ULONG WINAPI fontfallback_AddRef(IDWriteFontFallback *iface)
|
|
{
|
|
struct dwrite_fontfallback *fallback = impl_from_IDWriteFontFallback(iface);
|
|
TRACE("(%p)\n", fallback);
|
|
return IDWriteFactory2_AddRef(fallback->factory);
|
|
}
|
|
|
|
static ULONG WINAPI fontfallback_Release(IDWriteFontFallback *iface)
|
|
{
|
|
struct dwrite_fontfallback *fallback = impl_from_IDWriteFontFallback(iface);
|
|
TRACE("(%p)\n", fallback);
|
|
return IDWriteFactory2_Release(fallback->factory);
|
|
}
|
|
|
|
static const struct fallback_mapping *find_fallback_mapping(struct dwrite_fontfallback *fallback, UINT32 ch)
|
|
{
|
|
UINT32 i;
|
|
|
|
for (i = 0; i < fallback->count; i++) {
|
|
if (fallback->mappings[i].range.first <= ch && fallback->mappings[i].range.last >= ch)
|
|
return &fallback->mappings[i];
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
HRESULT create_matching_font(IDWriteFontCollection *collection, const WCHAR *name,
|
|
DWRITE_FONT_WEIGHT weight, DWRITE_FONT_STYLE style, DWRITE_FONT_STRETCH stretch, IDWriteFont **font)
|
|
{
|
|
IDWriteFontFamily *family;
|
|
BOOL exists = FALSE;
|
|
HRESULT hr;
|
|
UINT32 i;
|
|
|
|
*font = NULL;
|
|
|
|
hr = IDWriteFontCollection_FindFamilyName(collection, name, &i, &exists);
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
if (!exists)
|
|
return E_FAIL;
|
|
|
|
hr = IDWriteFontCollection_GetFontFamily(collection, i, &family);
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
hr = IDWriteFontFamily_GetFirstMatchingFont(family, weight, stretch, style, font);
|
|
IDWriteFontFamily_Release(family);
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT fallback_map_characters(IDWriteFont *font, const WCHAR *text, UINT32 length, UINT32 *mapped_length)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
UINT32 i;
|
|
|
|
for (i = 0; i < length; i++) {
|
|
UINT16 script = get_char_script(text[i]);
|
|
BOOL exists;
|
|
|
|
if (script == Script_Unknown || script == Script_Common) {
|
|
++*mapped_length;
|
|
continue;
|
|
}
|
|
|
|
/* stop on first unsupported character */
|
|
exists = FALSE;
|
|
hr = IDWriteFont_HasCharacter(font, text[i], &exists);
|
|
if (hr == S_OK && exists)
|
|
++*mapped_length;
|
|
else
|
|
break;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT fallback_get_fallback_font(struct dwrite_fontfallback *fallback, const WCHAR *text, UINT32 length,
|
|
IDWriteFontCollection *collection, DWRITE_FONT_WEIGHT weight, DWRITE_FONT_STYLE style, DWRITE_FONT_STRETCH stretch,
|
|
UINT32 *mapped_length, IDWriteFont **mapped_font)
|
|
{
|
|
const struct fallback_mapping *mapping;
|
|
HRESULT hr;
|
|
|
|
mapping = find_fallback_mapping(fallback, text[0]);
|
|
if (!mapping) {
|
|
WARN("no mapping for 0x%x\n", text[0]);
|
|
return E_FAIL;
|
|
}
|
|
|
|
/* now let's see what fallback can handle */
|
|
hr = create_matching_font(collection, mapping->family, weight, style, stretch, mapped_font);
|
|
if (FAILED(hr)) {
|
|
WARN("failed to create fallback font %s for range [0x%x,0x%x], 0x%08x\n", debugstr_w(mapping->family),
|
|
mapping->range.first, mapping->range.last, hr);
|
|
return hr;
|
|
}
|
|
|
|
hr = fallback_map_characters(*mapped_font, text, length, mapped_length);
|
|
if (FAILED(hr))
|
|
WARN("mapping with fallback font %s failed, 0x%08x\n", debugstr_w(mapping->family), hr);
|
|
|
|
if (!*mapped_length) {
|
|
IDWriteFont_Release(*mapped_font);
|
|
*mapped_font = NULL;
|
|
}
|
|
|
|
return *mapped_length ? S_OK : E_FAIL;
|
|
}
|
|
|
|
static HRESULT WINAPI fontfallback_MapCharacters(IDWriteFontFallback *iface, IDWriteTextAnalysisSource *source,
|
|
UINT32 position, UINT32 length, IDWriteFontCollection *basecollection, const WCHAR *basefamily,
|
|
DWRITE_FONT_WEIGHT weight, DWRITE_FONT_STYLE style, DWRITE_FONT_STRETCH stretch, UINT32 *mapped_length,
|
|
IDWriteFont **ret_font, FLOAT *scale)
|
|
{
|
|
struct dwrite_fontfallback *fallback = impl_from_IDWriteFontFallback(iface);
|
|
WCHAR *buff = NULL;
|
|
const WCHAR *text;
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p)->(%p %u %u %p, %s, %u, %u, %u, %p, %p, %p)\n", fallback, source, position, length,
|
|
basecollection, debugstr_w(basefamily), weight, style, stretch, mapped_length, ret_font, scale);
|
|
|
|
*mapped_length = 0;
|
|
*scale = 1.0f;
|
|
*ret_font = NULL;
|
|
|
|
if (!source)
|
|
return E_INVALIDARG;
|
|
|
|
if (length == 0)
|
|
return S_OK;
|
|
|
|
if (!basecollection) {
|
|
hr = IDWriteFactory2_GetSystemFontCollection(fallback->factory, &basecollection, FALSE);
|
|
if (FAILED(hr))
|
|
return hr;
|
|
}
|
|
else
|
|
IDWriteFontCollection_AddRef(basecollection);
|
|
|
|
hr = get_text_source_ptr(source, position, length, &text, &buff);
|
|
if (FAILED(hr))
|
|
goto done;
|
|
|
|
if (basefamily && *basefamily) {
|
|
IDWriteFont *mapped_font;
|
|
|
|
hr = create_matching_font(basecollection, basefamily, weight, style, stretch, ret_font);
|
|
if (FAILED(hr))
|
|
goto done;
|
|
|
|
hr = fallback_map_characters(*ret_font, text, length, mapped_length);
|
|
if (FAILED(hr))
|
|
goto done;
|
|
|
|
if (!*mapped_length) {
|
|
hr = fallback_get_fallback_font(fallback, text, length, basecollection, weight, style, stretch, mapped_length, &mapped_font);
|
|
if (FAILED(hr)) {
|
|
*mapped_length = length;
|
|
hr = S_OK;
|
|
goto done;
|
|
}
|
|
else {
|
|
IDWriteFont_Release(*ret_font);
|
|
*ret_font = mapped_font;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
hr = fallback_get_fallback_font(fallback, text, length, basecollection, weight, style, stretch, mapped_length, ret_font);
|
|
|
|
done:
|
|
IDWriteFontCollection_Release(basecollection);
|
|
heap_free(buff);
|
|
return hr;
|
|
}
|
|
|
|
static const IDWriteFontFallbackVtbl fontfallbackvtbl = {
|
|
fontfallback_QueryInterface,
|
|
fontfallback_AddRef,
|
|
fontfallback_Release,
|
|
fontfallback_MapCharacters
|
|
};
|
|
|
|
HRESULT create_system_fontfallback(IDWriteFactory2 *factory, IDWriteFontFallback **ret)
|
|
{
|
|
struct dwrite_fontfallback *fallback;
|
|
|
|
*ret = NULL;
|
|
|
|
fallback = heap_alloc(sizeof(*fallback));
|
|
if (!fallback)
|
|
return E_OUTOFMEMORY;
|
|
|
|
fallback->IDWriteFontFallback_iface.lpVtbl = &fontfallbackvtbl;
|
|
fallback->factory = factory;
|
|
fallback->mappings = fontfallback_neutral_data;
|
|
fallback->count = sizeof(fontfallback_neutral_data)/sizeof(fontfallback_neutral_data[0]);
|
|
|
|
*ret = &fallback->IDWriteFontFallback_iface;
|
|
return S_OK;
|
|
}
|
|
|
|
void release_system_fontfallback(IDWriteFontFallback *iface)
|
|
{
|
|
struct dwrite_fontfallback *fallback = impl_from_IDWriteFontFallback(iface);
|
|
heap_free(fallback);
|
|
}
|