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