1 /* 2 * Implementation of Uniscribe Script Processor (usp10.dll) 3 * 4 * Copyright 2010 CodeWeavers, Aric Stewart 5 * 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. 10 * 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. 15 * 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 19 * 20 */ 21 22 #pragma once 23 24 #include "wine/list.h" 25 26 #define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ 27 ( ( (ULONG)_x4 << 24 ) | \ 28 ( (ULONG)_x3 << 16 ) | \ 29 ( (ULONG)_x2 << 8 ) | \ 30 (ULONG)_x1 ) 31 32 enum usp10_script 33 { 34 Script_Undefined = 0x00, 35 Script_Latin = 0x01, 36 Script_CR = 0x02, 37 Script_Numeric = 0x03, 38 Script_Control = 0x04, 39 Script_Punctuation = 0x05, 40 Script_Arabic = 0x06, 41 Script_Arabic_Numeric = 0x07, 42 Script_Hebrew = 0x08, 43 Script_Syriac = 0x09, 44 Script_Persian = 0x0a, 45 Script_Thaana = 0x0b, 46 Script_Greek = 0x0c, 47 Script_Cyrillic = 0x0d, 48 Script_Armenian = 0x0e, 49 Script_Georgian = 0x0f, 50 /* Unicode Chapter 10 */ 51 Script_Sinhala = 0x10, 52 Script_Tibetan = 0x11, 53 Script_Tibetan_Numeric = 0x12, 54 Script_Phags_pa = 0x13, 55 /* Unicode Chapter 11 */ 56 Script_Thai = 0x14, 57 Script_Thai_Numeric = 0x15, 58 Script_Lao = 0x16, 59 Script_Lao_Numeric = 0x17, 60 /* Unicode Chapter 9 */ 61 Script_Devanagari = 0x18, 62 Script_Devanagari_Numeric = 0x19, 63 Script_Bengali = 0x1a, 64 Script_Bengali_Numeric = 0x1b, 65 Script_Bengali_Currency = 0x1c, 66 Script_Gurmukhi = 0x1d, 67 Script_Gurmukhi_Numeric = 0x1e, 68 Script_Gujarati = 0x1f, 69 Script_Gujarati_Numeric = 0x20, 70 Script_Gujarati_Currency = 0x21, 71 Script_Oriya = 0x22, 72 Script_Oriya_Numeric = 0x23, 73 Script_Tamil = 0x24, 74 Script_Tamil_Numeric = 0x25, 75 Script_Telugu = 0x26, 76 Script_Telugu_Numeric = 0x27, 77 Script_Kannada = 0x28, 78 Script_Kannada_Numeric = 0x29, 79 Script_Malayalam = 0x2a, 80 Script_Malayalam_Numeric = 0x2b, 81 /* More supplemental */ 82 Script_Diacritical = 0x2c, 83 Script_Punctuation2 = 0x2d, 84 Script_Numeric2 = 0x2e, 85 /* Unicode Chapter 11 continued */ 86 Script_Myanmar = 0x2f, 87 Script_Myanmar_Numeric = 0x30, 88 Script_Tai_Le = 0x31, 89 Script_New_Tai_Lue = 0x32, 90 Script_New_Tai_Lue_Numeric = 0x33, 91 Script_Khmer = 0x34, 92 Script_Khmer_Numeric = 0x35, 93 /* Unicode Chapter 12 */ 94 Script_CJK_Han = 0x36, 95 Script_Ideograph = 0x37, 96 Script_Bopomofo = 0x38, 97 Script_Kana = 0x39, 98 Script_Hangul = 0x3a, 99 Script_Yi = 0x3b, 100 /* Unicode Chapter 13 */ 101 Script_Ethiopic = 0x3c, 102 Script_Ethiopic_Numeric = 0x3d, 103 Script_Mongolian = 0x3e, 104 Script_Mongolian_Numeric = 0x3f, 105 Script_Tifinagh = 0x40, 106 Script_NKo = 0x41, 107 Script_Vai = 0x42, 108 Script_Vai_Numeric = 0x43, 109 Script_Cherokee = 0x44, 110 Script_Canadian = 0x45, 111 /* Unicode Chapter 14 */ 112 Script_Ogham = 0x46, 113 Script_Runic = 0x47, 114 /* Unicode Chapter 15 */ 115 Script_Braille = 0x48, 116 /* Unicode Chapter 16 */ 117 Script_Surrogates = 0x49, 118 Script_Private = 0x4a, 119 /* Unicode Chapter 13 : Plane 1 */ 120 Script_Deseret = 0x4b, 121 Script_Osmanya = 0x4c, 122 Script_Osmanya_Numeric = 0x4d, 123 /* Unicode Chapter 15 : Plane 1 */ 124 Script_MathAlpha = 0x4e, 125 /* Additional Currency Scripts */ 126 Script_Hebrew_Currency = 0x4f, 127 Script_Vietnamese_Currency = 0x50, 128 Script_Thai_Currency = 0x51, 129 }; 130 131 #define GLYPH_BLOCK_SHIFT 8 132 #define GLYPH_BLOCK_SIZE (1UL << GLYPH_BLOCK_SHIFT) 133 #define GLYPH_BLOCK_MASK (GLYPH_BLOCK_SIZE - 1) 134 #define GLYPH_MAX 65536 135 136 #define NUM_PAGES 17 137 138 #define GSUB_E_NOFEATURE -20 139 #define GSUB_E_NOGLYPH -10 140 141 #define FEATURE_ALL_TABLES 0 142 #define FEATURE_GSUB_TABLE 1 143 #define FEATURE_GPOS_TABLE 2 144 145 typedef struct { 146 OPENTYPE_TAG tag; 147 CHAR tableType; 148 const void *feature; 149 INT lookup_count; 150 WORD *lookups; 151 } LoadedFeature; 152 153 enum usp10_language_table 154 { 155 USP10_LANGUAGE_TABLE_GSUB = 0, 156 USP10_LANGUAGE_TABLE_GPOS, 157 USP10_LANGUAGE_TABLE_COUNT 158 }; 159 160 typedef struct { 161 OPENTYPE_TAG tag; 162 const void *table[USP10_LANGUAGE_TABLE_COUNT]; 163 BOOL features_initialized; 164 LoadedFeature *features; 165 SIZE_T features_size; 166 SIZE_T feature_count; 167 } LoadedLanguage; 168 169 enum usp10_script_table 170 { 171 USP10_SCRIPT_TABLE_GSUB = 0, 172 USP10_SCRIPT_TABLE_GPOS, 173 USP10_SCRIPT_TABLE_COUNT 174 }; 175 176 typedef struct { 177 OPENTYPE_TAG tag; 178 const void *table[USP10_SCRIPT_TABLE_COUNT]; 179 LoadedLanguage default_language; 180 BOOL languages_initialized; 181 LoadedLanguage *languages; 182 SIZE_T languages_size; 183 SIZE_T language_count; 184 } LoadedScript; 185 186 typedef struct { 187 WORD *glyphs[GLYPH_MAX / GLYPH_BLOCK_SIZE]; 188 } CacheGlyphPage; 189 190 typedef struct { 191 struct list entry; 192 DWORD refcount; 193 LOGFONTW lf; 194 TEXTMETRICW tm; 195 OUTLINETEXTMETRICW *otm; 196 SCRIPT_FONTPROPERTIES sfp; 197 BOOL sfnt; 198 CacheGlyphPage *page[NUM_PAGES]; 199 ABC *widths[GLYPH_MAX / GLYPH_BLOCK_SIZE]; 200 void *GSUB_Table; 201 void *GDEF_Table; 202 void *CMAP_Table; 203 void *CMAP_format12_Table; 204 void *GPOS_Table; 205 BOOL scripts_initialized; 206 LoadedScript *scripts; 207 SIZE_T scripts_size; 208 SIZE_T script_count; 209 210 OPENTYPE_TAG userScript; 211 OPENTYPE_TAG userLang; 212 } ScriptCache; 213 214 typedef struct _scriptData 215 { 216 SCRIPT_ANALYSIS a; 217 SCRIPT_PROPERTIES props; 218 OPENTYPE_TAG scriptTag; 219 WCHAR fallbackFont[LF_FACESIZE]; 220 } scriptData; 221 222 typedef struct { 223 INT start; 224 INT base; 225 INT ralf; 226 INT blwf; 227 INT pref; 228 INT end; 229 } IndicSyllable; 230 231 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}; 232 233 static inline BOOL is_consonant( int type ) 234 { 235 return (type == lex_Ra || type == lex_Consonant); 236 } 237 238 static inline unsigned short get_table_entry( const unsigned short *table, WCHAR ch ) 239 { 240 return table[table[table[ch >> 8] + ((ch >> 4) & 0x0f)] + (ch & 0xf)]; 241 } 242 243 typedef int (*lexical_function)(WCHAR c); 244 typedef void (*reorder_function)(WCHAR *chars, IndicSyllable *syllable, lexical_function lex); 245 246 #define odd(x) ((x) & 1) 247 #define BIDI_STRONG 1 248 #define BIDI_WEAK 2 249 #define BIDI_NEUTRAL 0 250 251 BOOL usp10_array_reserve(void **elements, SIZE_T *capacity, SIZE_T count, SIZE_T size) DECLSPEC_HIDDEN; 252 int USP10_FindGlyphInLogClust(const WORD* pwLogClust, int cChars, WORD target) DECLSPEC_HIDDEN; 253 254 BOOL BIDI_DetermineLevels(const WCHAR *string, unsigned int count, const SCRIPT_STATE *s, 255 const SCRIPT_CONTROL *c, WORD *levels, WORD *overrides) DECLSPEC_HIDDEN; 256 BOOL BIDI_GetStrengths(const WCHAR *string, unsigned int count, 257 const SCRIPT_CONTROL *c, WORD *strength) DECLSPEC_HIDDEN; 258 INT BIDI_ReorderV2lLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse) DECLSPEC_HIDDEN; 259 INT BIDI_ReorderL2vLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse) DECLSPEC_HIDDEN; 260 void SHAPE_ContextualShaping(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) DECLSPEC_HIDDEN; 261 void SHAPE_ApplyDefaultOpentypeFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, INT cChars, WORD *pwLogClust) DECLSPEC_HIDDEN; 262 void SHAPE_ApplyOpenTypePositions(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, const WORD* pwGlyphs, INT cGlyphs, int *piAdvance, GOFFSET *pGoffset ) DECLSPEC_HIDDEN; 263 HRESULT SHAPE_CheckFontForRequiredFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa) DECLSPEC_HIDDEN; 264 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; 265 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; 266 HRESULT SHAPE_GetFontScriptTags( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags) DECLSPEC_HIDDEN; 267 HRESULT SHAPE_GetFontLanguageTags( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, OPENTYPE_TAG tagScript, int cMaxTags, OPENTYPE_TAG *pLangSysTags, int *pcTags) DECLSPEC_HIDDEN; 268 HRESULT SHAPE_GetFontFeatureTags( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, OPENTYPE_TAG tagScript, OPENTYPE_TAG tagLangSys, int cMaxTags, OPENTYPE_TAG *pFeatureTags, int *pcTags) DECLSPEC_HIDDEN; 269 270 void Indic_ReorderCharacters(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache *psc, WCHAR *input, unsigned int cChars, 271 IndicSyllable **syllables, int *syllable_count, lexical_function lexical_f, 272 reorder_function reorder_f, BOOL modern) DECLSPEC_HIDDEN; 273 void Indic_ParseSyllables(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache* psc, const WCHAR *input, unsigned int cChar, 274 IndicSyllable **syllables, int *syllable_count, lexical_function lex, BOOL modern) DECLSPEC_HIDDEN; 275 276 void BREAK_line(const WCHAR *chars, int count, const SCRIPT_ANALYSIS *sa, SCRIPT_LOGATTR *la) DECLSPEC_HIDDEN; 277 278 DWORD OpenType_CMAP_GetGlyphIndex(HDC hdc, ScriptCache *psc, DWORD utf32c, LPWORD pgi, DWORD flags) DECLSPEC_HIDDEN; 279 void OpenType_GDEF_UpdateGlyphProps(ScriptCache *psc, const WORD *pwGlyphs, const WORD cGlyphs, WORD* pwLogClust, const WORD cChars, SCRIPT_GLYPHPROP *pGlyphProp) DECLSPEC_HIDDEN; 280 int OpenType_apply_GSUB_lookup(const void *table, unsigned int lookup_index, WORD *glyphs, 281 unsigned int glyph_index, int write_dir, int *glyph_count) DECLSPEC_HIDDEN; 282 unsigned int OpenType_apply_GPOS_lookup(const ScriptCache *psc, const OUTLINETEXTMETRICW *otm, 283 const LOGFONTW *logfont, const SCRIPT_ANALYSIS *analysis, int *advance, unsigned int lookup_index, 284 const WORD *glyphs, unsigned int glyph_index, unsigned int glyph_count, GOFFSET *goffset) DECLSPEC_HIDDEN; 285 HRESULT OpenType_GetFontScriptTags(ScriptCache *psc, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags) DECLSPEC_HIDDEN; 286 HRESULT OpenType_GetFontLanguageTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pLanguageTags, int *pcTags) DECLSPEC_HIDDEN; 287 HRESULT OpenType_GetFontFeatureTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG language_tag, BOOL filtered, OPENTYPE_TAG searchingFor, char tableType, int cMaxTags, OPENTYPE_TAG *pFeatureTags, int *pcTags, LoadedFeature** feature) DECLSPEC_HIDDEN; 288