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wine/dlls/dwrite/analyzer.c
Marcus Meissner 2bfb3ef624 dwrite: Initialize a variable (Coverity).
2014-12-01 11:00:17 +01:00

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/*
* Text analyzer
*
* Copyright 2011 Aric Stewart for CodeWeavers
* Copyright 2012, 2014 Nikolay Sivov for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define COBJMACROS
#include "dwrite_private.h"
#include "scripts.h"
WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
extern const unsigned short wine_linebreak_table[];
extern const unsigned short wine_scripts_table[];
struct dwritescript_properties {
DWRITE_SCRIPT_PROPERTIES props;
BOOL is_complex;
const struct scriptshaping_ops *ops;
};
/* NOTE: keep this array synced with script ids from scripts.h */
static const struct dwritescript_properties dwritescripts_properties[Script_LastId+1] = {
{ /* Zzzz */ { 0x7a7a7a5a, 999, 15, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Zyyy */ { 0x7979795a, 998, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Arab */ { 0x62617241, 160, 8, 0x0640, 0, 1, 0, 0, 0, 1, 1 }, TRUE },
{ /* Armn */ { 0x6e6d7241, 230, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Avst */ { 0x74737641, 134, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Bali */ { 0x696c6142, 360, 15, 0x0020, 1, 0, 1, 0, 0, 0, 0 } },
{ /* Bamu */ { 0x756d6142, 435, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 } },
{ /* Bass */ { 0x73736142, 259, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Batk */ { 0x6b746142, 365, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Beng */ { 0x676e6542, 325, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, TRUE },
{ /* Bopo */ { 0x6f706f42, 285, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 } },
{ /* Brah */ { 0x68617242, 300, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Brai */ { 0x69617242, 570, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Bugi */ { 0x69677542, 367, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Buhd */ { 0x64687542, 372, 8, 0x0020, 0, 0, 1, 0, 0, 0, 0 } },
{ /* Cans */ { 0x736e6143, 440, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Cari */ { 0x69726143, 201, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 } },
{ /* Aghb */ { 0x62686741, 239, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Cakm */ { 0x6d6b6143, 349, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Cham */ { 0x6d616843, 358, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 } },
{ /* Cher */ { 0x72656843, 445, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Copt */ { 0x74706f43, 204, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Xsux */ { 0x78757358, 20, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 } },
{ /* Cprt */ { 0x74727043, 403, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 } },
{ /* Cyrl */ { 0x6c727943, 220, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Dsrt */ { 0x74727344, 250, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Deva */ { 0x61766544, 315, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, TRUE },
{ /* Dupl */ { 0x6c707544, 755, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Egyp */ { 0x70796745, 50, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 } },
{ /* Elba */ { 0x61626c45, 226, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Ethi */ { 0x69687445, 430, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Geor */ { 0x726f6547, 240, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Glag */ { 0x67616c47, 225, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Goth */ { 0x68746f47, 206, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Gran */ { 0x6e617247, 343, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Grek */ { 0x6b657247, 200, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Gujr */ { 0x726a7547, 320, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Guru */ { 0x75727547, 310, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 }, TRUE },
{ /* Hani */ { 0x696e6148, 500, 8, 0x0020, 0, 0, 1, 1, 0, 0, 0 } },
{ /* Hang */ { 0x676e6148, 286, 8, 0x0020, 1, 1, 1, 1, 0, 0, 0 }, TRUE },
{ /* Hano */ { 0x6f6e6148, 371, 8, 0x0020, 0, 0, 1, 0, 0, 0, 0 } },
{ /* Hebr */ { 0x72626548, 125, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Hira */ { 0x61726948, 410, 8, 0x0020, 0, 0, 1, 1, 0, 0, 0 } },
{ /* Armi */ { 0x696d7241, 124, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Phli */ { 0x696c6850, 131, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Prti */ { 0x69747250, 130, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Java */ { 0x6176614a, 361, 15, 0x0020, 1, 0, 1, 0, 0, 0, 0 } },
{ /* Kthi */ { 0x6968744b, 317, 15, 0x0020, 1, 1, 0, 0, 0, 1, 0 } },
{ /* Knda */ { 0x61646e4b, 345, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Kana */ { 0x616e614b, 411, 8, 0x0020, 0, 0, 1, 1, 0, 0, 0 } },
{ /* Kali */ { 0x696c614b, 357, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Khar */ { 0x7261684b, 305, 15, 0x0020, 1, 0, 1, 0, 0, 0, 0 } },
{ /* Khmr */ { 0x726d684b, 355, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 }, TRUE },
{ /* Khoj */ { 0x6a6f684b, 322, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Sind */ { 0x646e6953, 318, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Laoo */ { 0x6f6f614c, 356, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 }, TRUE },
{ /* Latn */ { 0x6e74614c, 215, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, FALSE, &latn_shaping_ops },
{ /* Lepc */ { 0x6370654c, 335, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 } },
{ /* Limb */ { 0x626d694c, 336, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 } },
{ /* Lina */ { 0x616e694c, 400, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Linb */ { 0x626e694c, 401, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 } },
{ /* Lisu */ { 0x7573694c, 399, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Lyci */ { 0x6963794c, 202, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Lydi */ { 0x6964794c, 116, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Mahj */ { 0x6a68614d, 314, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Mlym */ { 0x6d796c4d, 347, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Mand */ { 0x646e614d, 140, 8, 0x0640, 0, 1, 0, 0, 0, 1, 1 } },
{ /* Mani */ { 0x696e614d, 139, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Mtei */ { 0x6965744d, 337, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 } },
{ /* Mend */ { 0x646e654d, 438, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Merc */ { 0x6372654d, 101, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Mero */ { 0x6f72654d, 100, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Plrd */ { 0x64726c50, 282, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Modi */ { 0x69646f4d, 324, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Mong */ { 0x676e6f4d, 145, 8, 0x0020, 0, 1, 0, 0, 0, 1, 1 }, TRUE },
{ /* Mroo */ { 0x6f6f724d, 199, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Mymr */ { 0x726d794d, 350, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Nbat */ { 0x7461624e, 159, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Talu */ { 0x756c6154, 354, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Nkoo */ { 0x6f6f6b4e, 165, 8, 0x0020, 0, 1, 0, 0, 0, 1, 1 }, TRUE },
{ /* Ogam */ { 0x6d61674f, 212, 1, 0x1680, 0, 1, 0, 0, 0, 1, 0 }, TRUE },
{ /* Olck */ { 0x6b636c4f, 261, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Ital */ { 0x6c617449, 210, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Narb */ { 0x6272614e, 106, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Perm */ { 0x6d726550, 227, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Xpeo */ { 0x6f657058, 30, 1, 0x0020, 0, 1, 1, 1, 0, 0, 0 }, TRUE },
{ /* Sarb */ { 0x62726153, 105, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Orkh */ { 0x686b724f, 175, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Orya */ { 0x6179724f, 327, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Osma */ { 0x616d734f, 260, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Hmng */ { 0x676e6d48, 450, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Palm */ { 0x6d6c6150, 126, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Pauc */ { 0x63756150, 263, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Phag */ { 0x67616850, 331, 8, 0x0020, 0, 1, 0, 0, 0, 1, 1 }, TRUE },
{ /* Phnx */ { 0x786e6850, 115, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 } },
{ /* Phlp */ { 0x706c6850, 132, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Rjng */ { 0x676e6a52, 363, 8, 0x0020, 1, 0, 1, 0, 0, 0, 0 } },
{ /* Runr */ { 0x726e7552, 211, 1, 0x0020, 0, 0, 1, 0, 0, 0, 0 }, TRUE },
{ /* Samr */ { 0x726d6153, 123, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Saur */ { 0x72756153, 344, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 } },
{ /* Shrd */ { 0x64726853, 319, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Shaw */ { 0x77616853, 281, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Sidd */ { 0x64646953, 302, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Sinh */ { 0x686e6953, 348, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Sora */ { 0x61726f53, 398, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Sund */ { 0x646e7553, 362, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 } },
{ /* Sylo */ { 0x6f6c7953, 316, 8, 0x0020, 1, 1, 0, 0, 0, 1, 0 } },
{ /* Syrc */ { 0x63727953, 135, 8, 0x0640, 0, 1, 0, 0, 0, 1, 1 }, TRUE },
{ /* Tglg */ { 0x676c6754, 370, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Tagb */ { 0x62676154, 373, 8, 0x0020, 0, 1, 1, 0, 0, 0, 0 } },
{ /* Tale */ { 0x656c6154, 353, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Lana */ { 0x616e614c, 351, 8, 0x0020, 1, 0, 1, 0, 0, 0, 0 } },
{ /* Tavt */ { 0x74766154, 359, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 } },
{ /* Takr */ { 0x726b6154, 321, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Taml */ { 0x6c6d6154, 346, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Telu */ { 0x756c6554, 340, 15, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Thaa */ { 0x61616854, 170, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Thai */ { 0x69616854, 352, 8, 0x0020, 1, 0, 1, 0, 1, 0, 0 }, TRUE },
{ /* Tibt */ { 0x74626954, 330, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Tfng */ { 0x676e6654, 120, 8, 0x0020, 1, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Tirh */ { 0x68726954, 326, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Ugar */ { 0x72616755, 40, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 } },
{ /* Vaii */ { 0x69696156, 470, 1, 0x0020, 0, 1, 1, 0, 0, 0, 0 }, TRUE },
{ /* Wara */ { 0x61726157, 262, 1, 0x0020, 0, 0, 0, 0, 0, 0, 0 } },
{ /* Yiii */ { 0x69696959, 460, 1, 0x0020, 0, 0, 1, 1, 0, 0, 0 }, TRUE }
};
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 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 len, IDWriteTextAnalysisSink *sink)
{
DWRITE_SCRIPT_ANALYSIS sa;
UINT32 pos, i, length;
if (!len) return S_OK;
sa.script = get_char_script(*text);
pos = 0;
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 = 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;
}
}
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 = break_class[i] == b_BK || break_class[i] == b_ZW || break_class[i] == b_SP || isspaceW(text[i]);
breakpoints[i].isSoftHyphen = FALSE;
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 */
case b_HL:
if (i < count-2)
switch (break_class[i+1])
{
case b_HY:
case b_BA:
set_break_condition(i+1, BreakConditionAfter, 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_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;
}
static HRESULT WINAPI dwritetextanalyzer_AnalyzeScript(IDWriteTextAnalyzer2 *iface,
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
{
const WCHAR *text;
HRESULT hr;
UINT32 len;
TRACE("(%p %u %u %p)\n", source, position, length, sink);
hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, position, &text, &len);
if (FAILED(hr)) return hr;
return analyze_script(text, len, sink);
}
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 len, pos, i;
HRESULT hr;
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;
}
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 E_NOTIMPL;
}
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 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;
WCHAR *string;
BOOL update_cluster;
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;
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;
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 = DWRITE_MAKE_OPENTYPE_TAG('d','f','l','t');
if (locale) {
WCHAR tag[5];
if (GetLocaleInfoEx(locale, LOCALE_SOPENTYPELANGUAGETAG, tag, sizeof(tag)/sizeof(WCHAR)))
context.language_tag = DWRITE_MAKE_OPENTYPE_TAG(tag[0],tag[1],tag[2],tag[3]);
}
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:
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* glyph_indices, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
UINT32 glyph_count, IDWriteFontFace * font_face, FLOAT fontEmSize, 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* glyph_advances, DWRITE_GLYPH_OFFSET* glyph_offsets)
{
FIXME("(%s %p %p %u %p %p %u %p %f %d %d %p %s %p %p %u %p %p): stub\n", debugstr_w(text),
clustermap, props, text_len, glyph_indices, glyph_props, glyph_count, font_face, fontEmSize, is_sideways,
is_rtl, analysis, debugstr_w(locale), features, feature_range_len, feature_ranges, glyph_advances, glyph_offsets);
return E_NOTIMPL;
}
static HRESULT WINAPI dwritetextanalyzer_GetGdiCompatibleGlyphPlacements(IDWriteTextAnalyzer2 *iface,
WCHAR const* text, UINT16 const* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* props,
UINT32 text_len, UINT16 const* glyph_indices, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
UINT32 glyph_count, IDWriteFontFace * font_face, FLOAT fontEmSize, FLOAT pixels_per_dip,
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* glyph_advances, DWRITE_GLYPH_OFFSET* glyph_offsets)
{
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),
clustermap, props, text_len, glyph_indices, glyph_props, glyph_count, font_face, fontEmSize, pixels_per_dip,
transform, use_gdi_natural, is_sideways, is_rtl, analysis, debugstr_w(locale), features, feature_range_lengths,
feature_ranges, glyph_advances, glyph_offsets);
return E_NOTIMPL;
}
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)
{
FIXME("(%.2f %.2f %.2f %u %u %p %p %p %p %p %p): stub\n", leading_spacing, trailing_spacing, min_advance_width,
len, glyph_count, clustermap, advances, offsets, props, modified_advances, modified_offsets);
return E_NOTIMPL;
}
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)
{
FIXME("(%d %d %p): stub\n", angle, is_sideways, transform);
return E_NOTIMPL;
}
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_w(text), 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 *transform)
{
FIXME("(%d %d %.2f %.2f %p): stub\n", angle, is_sideways, originX, originY, transform);
return E_NOTIMPL;
}
static HRESULT WINAPI dwritetextanalyzer2_GetTypographicFeatures(IDWriteTextAnalyzer2 *iface,
IDWriteFontFace *face, DWRITE_SCRIPT_ANALYSIS sa, const WCHAR *localeName,
UINT32 max_tagcount, UINT32 *actual_tagcount, DWRITE_FONT_FEATURE_TAG *tags)
{
FIXME("(%p %u %s %u %p %p): stub\n", face, sa.script, debugstr_w(localeName), max_tagcount, actual_tagcount,
tags);
return E_NOTIMPL;
}
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;
}
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