2 * Implementation of Uniscribe Script Processor (usp10.dll)
4 * Copyright 2010 CodeWeavers, Aric Stewart
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
22 ( ( (ULONG)_x4 << 24 ) | \
23 ( (ULONG)_x3 << 16 ) | \
24 ( (ULONG)_x2 << 8 ) | \
28 #define Script_Latin 1
30 #define Script_Numeric 3
31 #define Script_Control 4
32 #define Script_Punctuation 5
33 #define Script_Arabic 6
34 #define Script_Arabic_Numeric 7
35 #define Script_Hebrew 8
36 #define Script_Syriac 9
37 #define Script_Persian 10
38 #define Script_Thaana 11
39 #define Script_Greek 12
40 #define Script_Cyrillic 13
41 #define Script_Armenian 14
42 #define Script_Georgian 15
43 /* Unicode Chapter 10 */
44 #define Script_Sinhala 16
45 #define Script_Tibetan 17
46 #define Script_Tibetan_Numeric 18
47 #define Script_Phags_pa 19
48 /* Unicode Chapter 11 */
49 #define Script_Thai 20
50 #define Script_Thai_Numeric 21
52 #define Script_Lao_Numeric 23
53 /* Unicode Chapter 9 */
54 #define Script_Devanagari 24
55 #define Script_Devanagari_Numeric 25
56 #define Script_Bengali 26
57 #define Script_Bengali_Numeric 27
58 #define Script_Bengali_Currency 28
59 #define Script_Gurmukhi 29
60 #define Script_Gurmukhi_Numeric 30
61 #define Script_Gujarati 31
62 #define Script_Gujarati_Numeric 32
63 #define Script_Gujarati_Currency 33
64 #define Script_Oriya 34
65 #define Script_Oriya_Numeric 35
66 #define Script_Tamil 36
67 #define Script_Tamil_Numeric 37
68 #define Script_Telugu 38
69 #define Script_Telugu_Numeric 39
70 #define Script_Kannada 40
71 #define Script_Kannada_Numeric 41
72 #define Script_Malayalam 42
73 #define Script_Malayalam_Numeric 43
75 #define GLYPH_BLOCK_SHIFT 8
76 #define GLYPH_BLOCK_SIZE (1UL << GLYPH_BLOCK_SHIFT)
77 #define GLYPH_BLOCK_MASK (GLYPH_BLOCK_SIZE - 1)
78 #define GLYPH_MAX 65536
88 WORD *glyphs[GLYPH_MAX / GLYPH_BLOCK_SIZE];
89 ABC *widths[GLYPH_MAX / GLYPH_BLOCK_SIZE];
93 LoadedFeature *features;
95 OPENTYPE_TAG userScript;
96 OPENTYPE_TAG userLang;
108 enum {lex_Halant, lex_Composed_Vowel, lex_Matra_post, lex_Matra_pre, lex_Matra_above, lex_Matra_below, lex_ZWJ, lex_ZWNJ, lex_NBSP, lex_Modifier, lex_Vowel, lex_Consonant, lex_Generic, lex_Ra, lex_Vedic, lex_Anudatta, lex_Nukta};
110 static inline BOOL is_consonant( int type )
112 return (type == lex_Ra || type == lex_Consonant);
115 static inline WCHAR get_table_entry( const unsigned short *table, WCHAR ch )
117 return table[table[table[ch >> 8] + ((ch >> 4) & 0x0f)] + (ch & 0xf)];
120 typedef int (*lexical_function)(WCHAR c);
121 typedef void (*reorder_function)(LPWSTR pwChar, IndicSyllable *syllable, lexical_function lex);
123 #define odd(x) ((x) & 1)
125 BOOL BIDI_DetermineLevels( LPCWSTR lpString, INT uCount, const SCRIPT_STATE *s,
126 const SCRIPT_CONTROL *c, WORD *lpOutLevels ) DECLSPEC_HIDDEN;
127 BOOL BIDI_GetStrengths(LPCWSTR lpString, INT uCount, const SCRIPT_CONTROL *c,
128 WORD* lpStrength) DECLSPEC_HIDDEN;
129 INT BIDI_ReorderV2lLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse) DECLSPEC_HIDDEN;
130 INT BIDI_ReorderL2vLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse) DECLSPEC_HIDDEN;
131 void SHAPE_ContextualShaping(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) DECLSPEC_HIDDEN;
132 void SHAPE_ApplyDefaultOpentypeFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, INT cChars, WORD *pwLogClust) DECLSPEC_HIDDEN;
133 HRESULT SHAPE_CheckFontForRequiredFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa) DECLSPEC_HIDDEN;
134 void SHAPE_CharGlyphProp(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, const WCHAR* pwcChars, const INT cChars, const WORD* pwGlyphs, const INT cGlyphs, WORD *pwLogClust, SCRIPT_CHARPROP *pCharProp, SCRIPT_GLYPHPROP *pGlyphProp) DECLSPEC_HIDDEN;
135 INT SHAPE_does_GSUB_feature_apply_to_chars(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache* psc, const WCHAR *chars, INT write_dir, INT count, const char* feature) DECLSPEC_HIDDEN;
137 void Indic_ReorderCharacters( HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache* psc, LPWSTR input, int cChars, IndicSyllable **syllables, int *syllable_count, lexical_function lexical_f, reorder_function reorder_f, BOOL modern) DECLSPEC_HIDDEN;
139 void BREAK_line(const WCHAR *chars, int count, const SCRIPT_ANALYSIS *sa, SCRIPT_LOGATTR *la) DECLSPEC_HIDDEN;