dll/win32/usp10/usp10_internal.h

   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 #include <config.h>
  23
  24 #include <stdarg.h>
  25
  26 #define WIN32_NO_STATUS
  27 #define _INC_WINDOWS
  28 #define COM_NO_WINDOWS_H
  29
  30 #include <windef.h>
  31 #include <winbase.h>
  32 #include <wingdi.h>
  33 #include <usp10.h>
  34
  35 #include <wine/debug.h>
  36 #include <wine/unicode.h>
  37
  38 #define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
  39           ( ( (ULONG)_x4 << 24 ) |     \
  40             ( (ULONG)_x3 << 16 ) |     \
  41             ( (ULONG)_x2 <<  8 ) |     \
  42               (ULONG)_x1         )
  43
  44
  45 #define Script_Latin   1
  46 #define Script_CR      2
  47 #define Script_Numeric 3
  48 #define Script_Control 4
  49 #define Script_Punctuation 5
  50 #define Script_Arabic  6
  51 #define Script_Arabic_Numeric  7
  52 #define Script_Hebrew  8
  53 #define Script_Syriac  9
  54 #define Script_Persian 10
  55 #define Script_Thaana  11
  56 #define Script_Greek   12
  57 #define Script_Cyrillic   13
  58 #define Script_Armenian 14
  59 #define Script_Georgian 15
  60 /* Unicode Chapter 10 */
  61 #define Script_Sinhala 16
  62 #define Script_Tibetan 17
  63 #define Script_Tibetan_Numeric 18
  64 #define Script_Phags_pa 19
  65 /* Unicode Chapter 11 */
  66 #define Script_Thai 20
  67 #define Script_Thai_Numeric 21
  68 #define Script_Lao 22
  69 #define Script_Lao_Numeric 23
  70 /* Unicode Chapter 9 */
  71 #define Script_Devanagari 24
  72 #define Script_Devanagari_Numeric 25
  73 #define Script_Bengali 26
  74 #define Script_Bengali_Numeric 27
  75 #define Script_Bengali_Currency 28
  76 #define Script_Gurmukhi 29
  77 #define Script_Gurmukhi_Numeric 30
  78 #define Script_Gujarati 31
  79 #define Script_Gujarati_Numeric 32
  80 #define Script_Gujarati_Currency 33
  81 #define Script_Oriya 34
  82 #define Script_Oriya_Numeric 35
  83 #define Script_Tamil 36
  84 #define Script_Tamil_Numeric 37
  85 #define Script_Telugu 38
  86 #define Script_Telugu_Numeric 39
  87 #define Script_Kannada 40
  88 #define Script_Kannada_Numeric 41
  89 #define Script_Malayalam 42
  90 #define Script_Malayalam_Numeric 43
  91 /* More supplemental */
  92 #define Script_Diacritical 44
  93 #define Script_Punctuation2 45
  94 #define Script_Numeric2 46
  95 /* Unicode Chapter 11 continued */
  96 #define Script_Myanmar 47
  97 #define Script_Myanmar_Numeric 48
  98 #define Script_Tai_Le 49
  99 #define Script_New_Tai_Lue 50
 100 #define Script_New_Tai_Lue_Numeric 51
 101 #define Script_Khmer 52
 102 #define Script_Khmer_Numeric 53
 103 /* Unicode Chapter 12 */
 104 #define Script_CJK_Han  54
 105 #define Script_Ideograph  55
 106 #define Script_Bopomofo 56
 107 #define Script_Kana 57
 108 #define Script_Hangul 58
 109 #define Script_Yi 59
 110 /* Unicode Chapter 13 */
 111 #define Script_Ethiopic 60
 112 #define Script_Ethiopic_Numeric 61
 113 #define Script_Mongolian 62
 114 #define Script_Mongolian_Numeric 63
 115 #define Script_Tifinagh 64
 116 #define Script_NKo 65
 117 #define Script_Vai 66
 118 #define Script_Vai_Numeric 67
 119 #define Script_Cherokee 68
 120 #define Script_Canadian 69
 121 /* Unicode Chapter 14 */
 122 #define Script_Ogham 70
 123 #define Script_Runic 71
 124 /* Unicode Chapter 15 */
 125 #define Script_Braille 72
 126 /* Unicode Chapter 16 */
 127 #define Script_Surrogates 73
 128 #define Script_Private 74
 129 /* Unicode Chapter 13 : Plane 1 */
 130 #define Script_Deseret 75
 131 #define Script_Osmanya 76
 132 #define Script_Osmanya_Numeric 77
 133 /* Unicode Chapter 15 : Plane 1 */
 134 #define Script_MathAlpha 78
 135 /* Additional Currency Scripts */
 136 #define Script_Hebrew_Currency 79
 137 #define Script_Vietnamese_Currency 80
 138 #define Script_Thai_Currency 81
 139
 140 #define GLYPH_BLOCK_SHIFT 8
 141 #define GLYPH_BLOCK_SIZE  (1UL << GLYPH_BLOCK_SHIFT)
 142 #define GLYPH_BLOCK_MASK  (GLYPH_BLOCK_SIZE - 1)
 143 #define GLYPH_MAX         65536
 144
 145 #define GSUB_E_NOFEATURE -2
 146 #define GSUB_E_NOGLYPH -1
 147
 148 #define FEATURE_ALL_TABLES 0
 149 #define FEATURE_GSUB_TABLE 1
 150 #define FEATURE_GPOS_TABLE 2
 151
 152 typedef struct {
 153     OPENTYPE_TAG tag;
 154     CHAR tableType;
 155     LPCVOID  feature;
 156     INT lookup_count;
 157     WORD *lookups;
 158 } LoadedFeature;
 159
 160 typedef struct {
 161     OPENTYPE_TAG tag;
 162     LPCVOID gsub_table;
 163     LPCVOID gpos_table;
 164     BOOL features_initialized;
 165     INT feature_count;
 166     LoadedFeature *features;
 167 } LoadedLanguage;
 168
 169 typedef struct {
 170     OPENTYPE_TAG tag;
 171     LPCVOID gsub_table;
 172     LPCVOID gpos_table;
 173     LoadedLanguage default_language;
 174     BOOL languages_initialized;
 175     INT language_count;
 176     LoadedLanguage *languages;
 177 } LoadedScript;
 178
 179 typedef struct {
 180     WORD *glyphs[GLYPH_MAX / GLYPH_BLOCK_SIZE];
 181 } CacheGlyphPage;
 182
 183 typedef struct {
 184     LOGFONTW lf;
 185     TEXTMETRICW tm;
 186     OUTLINETEXTMETRICW *otm;
 187     SCRIPT_FONTPROPERTIES sfp;
 188     BOOL sfnt;
 189     CacheGlyphPage *page[0x10];
 190     ABC *widths[GLYPH_MAX / GLYPH_BLOCK_SIZE];
 191     LPVOID GSUB_Table;
 192     LPVOID GDEF_Table;
 193     LPVOID CMAP_Table;
 194     LPVOID CMAP_format12_Table;
 195     LPVOID GPOS_Table;
 196     BOOL scripts_initialized;
 197     INT script_count;
 198     LoadedScript *scripts;
 199
 200     OPENTYPE_TAG userScript;
 201     OPENTYPE_TAG userLang;
 202 } ScriptCache;
 203
 204 typedef struct _scriptData
 205 {
 206     SCRIPT_ANALYSIS a;
 207     SCRIPT_PROPERTIES props;
 208     OPENTYPE_TAG scriptTag;
 209     WCHAR fallbackFont[LF_FACESIZE];
 210 } scriptData;
 211
 212 typedef struct {
 213     INT start;
 214     INT base;
 215     INT ralf;
 216     INT blwf;
 217     INT pref;
 218     INT end;
 219 } IndicSyllable;
 220
 221 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};
 222
 223 static inline BOOL is_consonant( int type )
 224 {
 225     return (type == lex_Ra || type == lex_Consonant);
 226 }
 227
 228 static inline WCHAR get_table_entry( const unsigned short *table, WCHAR ch )
 229 {
 230     return table[table[table[ch >> 8] + ((ch >> 4) & 0x0f)] + (ch & 0xf)];
 231 }
 232
 233 typedef int (*lexical_function)(WCHAR c);
 234 typedef void (*reorder_function)(LPWSTR pwChar, IndicSyllable *syllable, lexical_function lex);
 235
 236 #define odd(x) ((x) & 1)
 237 #define BIDI_STRONG  1
 238 #define BIDI_WEAK    2
 239 #define BIDI_NEUTRAL 0
 240
 241 int USP10_FindGlyphInLogClust(const WORD* pwLogClust, int cChars, WORD target) DECLSPEC_HIDDEN;
 242
 243 BOOL BIDI_DetermineLevels( LPCWSTR lpString, INT uCount, const SCRIPT_STATE *s,
 244                 const SCRIPT_CONTROL *c, WORD *lpOutLevels ) DECLSPEC_HIDDEN;
 245 BOOL BIDI_GetStrengths(LPCWSTR lpString, INT uCount, const SCRIPT_CONTROL *c,
 246                       WORD* lpStrength) DECLSPEC_HIDDEN;
 247 INT BIDI_ReorderV2lLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse) DECLSPEC_HIDDEN;
 248 INT BIDI_ReorderL2vLevel(int level, int *pIndexs, const BYTE* plevel, int cch, BOOL fReverse) DECLSPEC_HIDDEN;
 249 void SHAPE_ContextualShaping(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) DECLSPEC_HIDDEN;
 250 void SHAPE_ApplyDefaultOpentypeFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, INT cChars, WORD *pwLogClust) DECLSPEC_HIDDEN;
 251 void SHAPE_ApplyOpenTypePositions(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, const WORD* pwGlyphs, INT cGlyphs, int *piAdvance, GOFFSET *pGoffset ) DECLSPEC_HIDDEN;
 252 HRESULT SHAPE_CheckFontForRequiredFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa) DECLSPEC_HIDDEN;
 253 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;
 254 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;
 255 HRESULT SHAPE_GetFontScriptTags( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags) DECLSPEC_HIDDEN;
 256 HRESULT SHAPE_GetFontLanguageTags( HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, OPENTYPE_TAG tagScript, int cMaxTags, OPENTYPE_TAG *pLangSysTags, int *pcTags) DECLSPEC_HIDDEN;
 257 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;
 258
 259 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;
 260 void Indic_ParseSyllables( HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache* psc, LPCWSTR input, const int cChar, IndicSyllable **syllables, int *syllable_count, lexical_function lex, BOOL modern) DECLSPEC_HIDDEN;
 261
 262 void BREAK_line(const WCHAR *chars, int count, const SCRIPT_ANALYSIS *sa, SCRIPT_LOGATTR *la) DECLSPEC_HIDDEN;
 263
 264 DWORD OpenType_CMAP_GetGlyphIndex(HDC hdc, ScriptCache *psc, DWORD utf32c, LPWORD pgi, DWORD flags) DECLSPEC_HIDDEN;
 265 void OpenType_GDEF_UpdateGlyphProps(ScriptCache *psc, const WORD *pwGlyphs, const WORD cGlyphs, WORD* pwLogClust, const WORD cChars, SCRIPT_GLYPHPROP *pGlyphProp) DECLSPEC_HIDDEN;
 266 INT OpenType_apply_GSUB_lookup(LPCVOID table, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) DECLSPEC_HIDDEN;
 267 INT OpenType_apply_GPOS_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOGFONTW lplogfont, const SCRIPT_ANALYSIS *analysis, INT* piAdvance, INT lookup_index, const WORD *glyphs, INT glyph_index, INT glyph_count, GOFFSET *pGoffset) DECLSPEC_HIDDEN;
 268 HRESULT OpenType_GetFontScriptTags(ScriptCache *psc, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags) DECLSPEC_HIDDEN;
 269 HRESULT OpenType_GetFontLanguageTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pLanguageTags, int *pcTags) DECLSPEC_HIDDEN;
 270 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;