/* * Implementation of Shaping for the Uniscribe Script Processor (usp10.dll) * * Copyright 2010 CodeWeavers, Aric Stewart * * 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 * */ #include #include "windef.h" #include "winbase.h" #include "wingdi.h" #include "winuser.h" #include "winnls.h" #include "usp10.h" #include "winternl.h" #include "usp10_internal.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(uniscribe); #define FIRST_ARABIC_CHAR 0x0600 #define LAST_ARABIC_CHAR 0x06ff typedef VOID (*ContextualShapingProc)(HDC, ScriptCache*, SCRIPT_ANALYSIS*, WCHAR*, INT, WORD*, INT*, INT, WORD*); static void ContextualShape_Arabic(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Syriac(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Phags_pa(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Sinhala(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Devanagari(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Bengali(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Gurmukhi(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Gujarati(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Oriya(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Tamil(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Telugu(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Kannada(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); static void ContextualShape_Malayalam(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust); typedef VOID (*ShapeCharGlyphPropProc)( HDC , ScriptCache*, SCRIPT_ANALYSIS*, const WCHAR*, const INT, const WORD*, const INT, WORD*, SCRIPT_CHARPROP*, SCRIPT_GLYPHPROP*); static void ShapeCharGlyphProp_Default( 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); static void ShapeCharGlyphProp_Arabic( 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 ); static void ShapeCharGlyphProp_Thai( 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 ); static void ShapeCharGlyphProp_None( 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 ); static void ShapeCharGlyphProp_Tibet( 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 ); static void ShapeCharGlyphProp_Devanagari( 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 ); static void ShapeCharGlyphProp_Bengali( 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 ); static void ShapeCharGlyphProp_Gurmukhi( 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 ); static void ShapeCharGlyphProp_Gujarati( 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 ); static void ShapeCharGlyphProp_Oriya( 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 ); static void ShapeCharGlyphProp_Tamil( 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 ); static void ShapeCharGlyphProp_Telugu( 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 ); static void ShapeCharGlyphProp_Kannada( 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 ); static void ShapeCharGlyphProp_Malayalam( 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 ); extern const unsigned short wine_shaping_table[]; extern const unsigned short wine_shaping_forms[LAST_ARABIC_CHAR - FIRST_ARABIC_CHAR + 1][4]; enum joining_types { jtU, jtT, jtR, jtL, jtD, jtC }; enum joined_forms { Xn=0, Xr, Xl, Xm, /* Syriac Alaph */ Afj, Afn, Afx }; #ifdef WORDS_BIGENDIAN #define GET_BE_WORD(x) (x) #else #define GET_BE_WORD(x) RtlUshortByteSwap(x) #endif /* These are all structures needed for the GSUB table */ #define GSUB_TAG MS_MAKE_TAG('G', 'S', 'U', 'B') #define GSUB_E_NOFEATURE -2 #define GSUB_E_NOGLYPH -1 typedef struct { DWORD version; WORD ScriptList; WORD FeatureList; WORD LookupList; } GSUB_Header; typedef struct { CHAR ScriptTag[4]; WORD Script; } GSUB_ScriptRecord; typedef struct { WORD ScriptCount; GSUB_ScriptRecord ScriptRecord[1]; } GSUB_ScriptList; typedef struct { CHAR LangSysTag[4]; WORD LangSys; } GSUB_LangSysRecord; typedef struct { WORD DefaultLangSys; WORD LangSysCount; GSUB_LangSysRecord LangSysRecord[1]; } GSUB_Script; typedef struct { WORD LookupOrder; /* Reserved */ WORD ReqFeatureIndex; WORD FeatureCount; WORD FeatureIndex[1]; } GSUB_LangSys; typedef struct { CHAR FeatureTag[4]; WORD Feature; } GSUB_FeatureRecord; typedef struct { WORD FeatureCount; GSUB_FeatureRecord FeatureRecord[1]; } GSUB_FeatureList; typedef struct { WORD FeatureParams; /* Reserved */ WORD LookupCount; WORD LookupListIndex[1]; } GSUB_Feature; typedef struct { WORD LookupCount; WORD Lookup[1]; } GSUB_LookupList; typedef struct { WORD LookupType; WORD LookupFlag; WORD SubTableCount; WORD SubTable[1]; } GSUB_LookupTable; typedef struct { WORD CoverageFormat; WORD GlyphCount; WORD GlyphArray[1]; } GSUB_CoverageFormat1; typedef struct { WORD Start; WORD End; WORD StartCoverageIndex; } GSUB_RangeRecord; typedef struct { WORD CoverageFormat; WORD RangeCount; GSUB_RangeRecord RangeRecord[1]; } GSUB_CoverageFormat2; typedef struct { WORD SubstFormat; /* = 1 */ WORD Coverage; WORD DeltaGlyphID; } GSUB_SingleSubstFormat1; typedef struct { WORD SubstFormat; /* = 2 */ WORD Coverage; WORD GlyphCount; WORD Substitute[1]; }GSUB_SingleSubstFormat2; typedef struct { WORD SubstFormat; /* = 1 */ WORD Coverage; WORD LigSetCount; WORD LigatureSet[1]; }GSUB_LigatureSubstFormat1; typedef struct { WORD LigatureCount; WORD Ligature[1]; }GSUB_LigatureSet; typedef struct{ WORD LigGlyph; WORD CompCount; WORD Component[1]; }GSUB_Ligature; typedef struct{ WORD SequenceIndex; WORD LookupListIndex; }GSUB_SubstLookupRecord; typedef struct{ WORD SubstFormat; /* = 1 */ WORD Coverage; WORD ChainSubRuleSetCount; WORD ChainSubRuleSet[1]; }GSUB_ChainContextSubstFormat1; typedef struct { WORD SubstFormat; /* = 3 */ WORD BacktrackGlyphCount; WORD Coverage[1]; }GSUB_ChainContextSubstFormat3_1; typedef struct{ WORD InputGlyphCount; WORD Coverage[1]; }GSUB_ChainContextSubstFormat3_2; typedef struct{ WORD LookaheadGlyphCount; WORD Coverage[1]; }GSUB_ChainContextSubstFormat3_3; typedef struct{ WORD SubstCount; GSUB_SubstLookupRecord SubstLookupRecord[1]; }GSUB_ChainContextSubstFormat3_4; typedef struct { WORD SubstFormat; /* = 1 */ WORD Coverage; WORD AlternateSetCount; WORD AlternateSet[1]; } GSUB_AlternateSubstFormat1; typedef struct{ WORD GlyphCount; WORD Alternate[1]; } GSUB_AlternateSet; /* These are all structures needed for the GDEF table */ #define GDEF_TAG MS_MAKE_TAG('G', 'D', 'E', 'F') enum {BaseGlyph=1, LigatureGlyph, MarkGlyph, ComponentGlyph}; typedef struct { DWORD Version; WORD GlyphClassDef; WORD AttachList; WORD LigCaretList; WORD MarkAttachClassDef; } GDEF_Header; typedef struct { WORD ClassFormat; WORD StartGlyph; WORD GlyphCount; WORD ClassValueArray[1]; } GDEF_ClassDefFormat1; typedef struct { WORD Start; WORD End; WORD Class; } GDEF_ClassRangeRecord; typedef struct { WORD ClassFormat; WORD ClassRangeCount; GDEF_ClassRangeRecord ClassRangeRecord[1]; } GDEF_ClassDefFormat2; static INT GSUB_apply_lookup(const GSUB_LookupList* lookup, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count); typedef struct tagVowelComponents { WCHAR base; WCHAR parts[3]; } VowelComponents; typedef struct tagConsonantComponents { WCHAR parts[3]; WCHAR output; } ConsonantComponents; /* the orders of joined_forms and contextual_features need to line up */ static const char* contextual_features[] = { "isol", "fina", "init", "medi", /* Syriac Alaph */ "med2", "fin2", "fin3" }; static OPENTYPE_FEATURE_RECORD standard_features[] = { { MS_MAKE_TAG('l','i','g','a'), 1}, { MS_MAKE_TAG('c','l','i','g'), 1}, }; static OPENTYPE_FEATURE_RECORD arabic_features[] = { { MS_MAKE_TAG('r','l','i','g'), 1}, { MS_MAKE_TAG('c','a','l','t'), 1}, { MS_MAKE_TAG('l','i','g','a'), 1}, { MS_MAKE_TAG('d','l','i','g'), 1}, { MS_MAKE_TAG('c','s','w','h'), 1}, { MS_MAKE_TAG('m','s','e','t'), 1}, }; static const char* required_arabic_features[] = { "fina", "init", "medi", "rlig", NULL }; static OPENTYPE_FEATURE_RECORD hebrew_features[] = { { MS_MAKE_TAG('d','l','i','g'), 1}, }; static OPENTYPE_FEATURE_RECORD syriac_features[] = { { MS_MAKE_TAG('r','l','i','g'), 1}, { MS_MAKE_TAG('c','a','l','t'), 1}, { MS_MAKE_TAG('l','i','g','a'), 1}, { MS_MAKE_TAG('d','l','i','g'), 1}, }; static const char* required_syriac_features[] = { "fina", "fin2", "fin3", "init", "medi", "med2", "rlig", NULL }; static OPENTYPE_FEATURE_RECORD sinhala_features[] = { /* Base forms */ { MS_MAKE_TAG('a','k','h','n'), 1}, { MS_MAKE_TAG('r','p','h','f'), 1}, { MS_MAKE_TAG('v','a','t','u'), 1}, { MS_MAKE_TAG('p','s','t','f'), 1}, /* Presentation forms */ { MS_MAKE_TAG('b','l','w','s'), 1}, { MS_MAKE_TAG('a','b','v','s'), 1}, { MS_MAKE_TAG('p','s','t','s'), 1}, }; static OPENTYPE_FEATURE_RECORD tibetan_features[] = { { MS_MAKE_TAG('a','b','v','s'), 1}, { MS_MAKE_TAG('b','l','w','s'), 1}, }; static OPENTYPE_FEATURE_RECORD thai_features[] = { { MS_MAKE_TAG('c','c','m','p'), 1}, }; static const char* required_lao_features[] = { "ccmp", NULL }; static const char* required_devanagari_features[] = { "nukt", "akhn", "rphf", "blwf", "half", "vatu", "pres", "abvs", "blws", "psts", "haln", NULL }; static OPENTYPE_FEATURE_RECORD devanagari_features[] = { /* Localized forms */ { MS_MAKE_TAG('l','o','c','l'), 1}, /* Base forms */ { MS_MAKE_TAG('n','u','k','t'), 1}, { MS_MAKE_TAG('a','k','h','n'), 1}, { MS_MAKE_TAG('r','p','h','f'), 1}, { MS_MAKE_TAG('r','k','r','f'), 1}, { MS_MAKE_TAG('b','l','w','f'), 1}, { MS_MAKE_TAG('h','a','l','f'), 1}, { MS_MAKE_TAG('v','a','t','u'), 1}, { MS_MAKE_TAG('c','j','c','t'), 1}, /* Presentation forms */ { MS_MAKE_TAG('p','r','e','s'), 1}, { MS_MAKE_TAG('a','b','v','s'), 1}, { MS_MAKE_TAG('b','l','w','s'), 1}, { MS_MAKE_TAG('p','s','t','s'), 1}, { MS_MAKE_TAG('h','a','l','n'), 1}, { MS_MAKE_TAG('c','a','l','t'), 1}, }; static const char* required_bengali_features[] = { "nukt", "akhn", "rphf", "blwf", "half", "vatu", "pstf", "init", "abvs", "blws", "psts", "haln", NULL }; static OPENTYPE_FEATURE_RECORD bengali_features[] = { /* Localized forms */ { MS_MAKE_TAG('l','o','c','l'), 1}, /* Base forms */ { MS_MAKE_TAG('n','u','k','t'), 1}, { MS_MAKE_TAG('a','k','h','n'), 1}, { MS_MAKE_TAG('r','p','h','f'), 1}, { MS_MAKE_TAG('b','l','w','f'), 1}, { MS_MAKE_TAG('p','s','t','f'), 1}, { MS_MAKE_TAG('h','a','l','f'), 1}, { MS_MAKE_TAG('v','a','t','u'), 1}, { MS_MAKE_TAG('c','j','c','t'), 1}, /* Presentation forms */ { MS_MAKE_TAG('i','n','i','t'), 1}, { MS_MAKE_TAG('p','r','e','s'), 1}, { MS_MAKE_TAG('a','b','v','s'), 1}, { MS_MAKE_TAG('b','l','w','s'), 1}, { MS_MAKE_TAG('p','s','t','s'), 1}, { MS_MAKE_TAG('h','a','l','n'), 1}, { MS_MAKE_TAG('c','a','l','t'), 1}, }; static const char* required_gurmukhi_features[] = { "nukt", "akhn", "rphf", "blwf", "half", "pstf", "vatu", "cjct", "pres", "abvs", "blws", "psts", "haln", "calt", NULL }; static OPENTYPE_FEATURE_RECORD gurmukhi_features[] = { /* Localized forms */ { MS_MAKE_TAG('l','o','c','l'), 1}, /* Base forms */ { MS_MAKE_TAG('n','u','k','t'), 1}, { MS_MAKE_TAG('a','k','h','n'), 1}, { MS_MAKE_TAG('r','p','h','f'), 1}, { MS_MAKE_TAG('b','l','w','f'), 1}, { MS_MAKE_TAG('p','s','t','f'), 1}, { MS_MAKE_TAG('h','a','l','f'), 1}, { MS_MAKE_TAG('v','a','t','u'), 1}, { MS_MAKE_TAG('c','j','c','t'), 1}, /* Presentation forms */ { MS_MAKE_TAG('p','r','e','s'), 1}, { MS_MAKE_TAG('a','b','v','s'), 1}, { MS_MAKE_TAG('b','l','w','s'), 1}, { MS_MAKE_TAG('p','s','t','s'), 1}, { MS_MAKE_TAG('h','a','l','n'), 1}, { MS_MAKE_TAG('c','a','l','t'), 1}, }; static const char* required_oriya_features[] = { "nukt", "akhn", "rphf", "blwf", "pstf", "cjct", "pres", "abvs", "blws", "psts", "haln", "calt", NULL }; static OPENTYPE_FEATURE_RECORD oriya_features[] = { /* Localized forms */ { MS_MAKE_TAG('l','o','c','l'), 1}, /* Base forms */ { MS_MAKE_TAG('n','u','k','t'), 1}, { MS_MAKE_TAG('a','k','h','n'), 1}, { MS_MAKE_TAG('r','p','h','f'), 1}, { MS_MAKE_TAG('b','l','w','f'), 1}, { MS_MAKE_TAG('p','s','t','f'), 1}, { MS_MAKE_TAG('c','j','c','t'), 1}, /* Presentation forms */ { MS_MAKE_TAG('p','r','e','s'), 1}, { MS_MAKE_TAG('a','b','v','s'), 1}, { MS_MAKE_TAG('b','l','w','s'), 1}, { MS_MAKE_TAG('p','s','t','s'), 1}, { MS_MAKE_TAG('h','a','l','n'), 1}, { MS_MAKE_TAG('c','a','l','t'), 1}, }; static const char* required_tamil_features[] = { "nukt", "akhn", "rphf", "pref", "half", "pres", "abvs", "blws", "psts", "haln", "calt", NULL }; static OPENTYPE_FEATURE_RECORD tamil_features[] = { /* Localized forms */ { MS_MAKE_TAG('l','o','c','l'), 1}, /* Base forms */ { MS_MAKE_TAG('n','u','k','t'), 1}, { MS_MAKE_TAG('a','k','h','n'), 1}, { MS_MAKE_TAG('r','p','h','f'), 1}, { MS_MAKE_TAG('p','r','e','f'), 1}, { MS_MAKE_TAG('h','a','l','f'), 1}, /* Presentation forms */ { MS_MAKE_TAG('p','r','e','s'), 1}, { MS_MAKE_TAG('a','b','v','s'), 1}, { MS_MAKE_TAG('b','l','w','s'), 1}, { MS_MAKE_TAG('p','s','t','s'), 1}, { MS_MAKE_TAG('h','a','l','n'), 1}, { MS_MAKE_TAG('c','a','l','t'), 1}, }; static const char* required_telugu_features[] = { "nukt", "akhn", "rphf", "pref", "half", "pstf", "cjct", "pres", "abvs", "blws", "psts", "haln", "calt", NULL }; static OPENTYPE_FEATURE_RECORD telugu_features[] = { /* Localized forms */ { MS_MAKE_TAG('l','o','c','l'), 1}, /* Base forms */ { MS_MAKE_TAG('n','u','k','t'), 1}, { MS_MAKE_TAG('a','k','h','n'), 1}, { MS_MAKE_TAG('r','p','h','f'), 1}, { MS_MAKE_TAG('p','r','e','f'), 1}, { MS_MAKE_TAG('b','l','w','f'), 1}, { MS_MAKE_TAG('p','s','t','f'), 1}, { MS_MAKE_TAG('h','a','l','f'), 1}, { MS_MAKE_TAG('c','j','c','t'), 1}, /* Presentation forms */ { MS_MAKE_TAG('p','r','e','s'), 1}, { MS_MAKE_TAG('a','b','v','s'), 1}, { MS_MAKE_TAG('b','l','w','s'), 1}, { MS_MAKE_TAG('p','s','t','s'), 1}, { MS_MAKE_TAG('h','a','l','n'), 1}, { MS_MAKE_TAG('c','a','l','t'), 1}, }; typedef struct ScriptShapeDataTag { TEXTRANGE_PROPERTIES defaultTextRange; const char** requiredFeatures; CHAR otTag[5]; CHAR newOtTag[5]; ContextualShapingProc contextProc; ShapeCharGlyphPropProc charGlyphPropProc; } ScriptShapeData; /* in order of scripts */ static const ScriptShapeData ShapingData[] = { {{ standard_features, 2}, NULL, "", "", NULL, NULL}, {{ standard_features, 2}, NULL, "latn", "", NULL, NULL}, {{ standard_features, 2}, NULL, "latn", "", NULL, NULL}, {{ standard_features, 2}, NULL, "latn", "", NULL, NULL}, {{ standard_features, 2}, NULL, "" , "", NULL, NULL}, {{ standard_features, 2}, NULL, "latn", "", NULL, NULL}, {{ arabic_features, 6}, required_arabic_features, "arab", "", ContextualShape_Arabic, ShapeCharGlyphProp_Arabic}, {{ arabic_features, 6}, required_arabic_features, "arab", "", ContextualShape_Arabic, ShapeCharGlyphProp_Arabic}, {{ hebrew_features, 1}, NULL, "hebr", "", NULL, NULL}, {{ syriac_features, 4}, required_syriac_features, "syrc", "", ContextualShape_Syriac, ShapeCharGlyphProp_None}, {{ arabic_features, 6}, required_arabic_features, "arab", "", ContextualShape_Arabic, ShapeCharGlyphProp_Arabic}, {{ NULL, 0}, NULL, "thaa", "", NULL, ShapeCharGlyphProp_None}, {{ standard_features, 2}, NULL, "grek", "", NULL, NULL}, {{ standard_features, 2}, NULL, "cyrl", "", NULL, NULL}, {{ standard_features, 2}, NULL, "armn", "", NULL, NULL}, {{ standard_features, 2}, NULL, "geor", "", NULL, NULL}, {{ sinhala_features, 7}, NULL, "sinh", "", ContextualShape_Sinhala, NULL}, {{ tibetan_features, 2}, NULL, "tibt", "", NULL, ShapeCharGlyphProp_Tibet}, {{ tibetan_features, 2}, NULL, "tibt", "", NULL, ShapeCharGlyphProp_Tibet}, {{ tibetan_features, 2}, NULL, "phag", "", ContextualShape_Phags_pa, ShapeCharGlyphProp_Thai}, {{ thai_features, 1}, NULL, "thai", "", NULL, ShapeCharGlyphProp_Thai}, {{ thai_features, 1}, NULL, "thai", "", NULL, ShapeCharGlyphProp_Thai}, {{ thai_features, 1}, required_lao_features, "lao", "", NULL, ShapeCharGlyphProp_Thai}, {{ thai_features, 1}, required_lao_features, "lao", "", NULL, ShapeCharGlyphProp_Thai}, {{ devanagari_features, 15}, required_devanagari_features, "deva", "dev2", ContextualShape_Devanagari, ShapeCharGlyphProp_Devanagari}, {{ devanagari_features, 15}, required_devanagari_features, "deva", "dev2", ContextualShape_Devanagari, ShapeCharGlyphProp_Devanagari}, {{ bengali_features, 16}, required_bengali_features, "beng", "bng2", ContextualShape_Bengali, ShapeCharGlyphProp_Bengali}, {{ bengali_features, 16}, required_bengali_features, "beng", "bng2", ContextualShape_Bengali, ShapeCharGlyphProp_Bengali}, {{ gurmukhi_features, 15}, required_gurmukhi_features, "guru", "gur2", ContextualShape_Gurmukhi, ShapeCharGlyphProp_Gurmukhi}, {{ gurmukhi_features, 15}, required_gurmukhi_features, "guru", "gur2", ContextualShape_Gurmukhi, ShapeCharGlyphProp_Gurmukhi}, {{ devanagari_features, 15}, required_devanagari_features, "gujr", "gjr2", ContextualShape_Gujarati, ShapeCharGlyphProp_Gujarati}, {{ devanagari_features, 15}, required_devanagari_features, "gujr", "gjr2", ContextualShape_Gujarati, ShapeCharGlyphProp_Gujarati}, {{ devanagari_features, 15}, required_devanagari_features, "gujr", "gjr2", ContextualShape_Gujarati, ShapeCharGlyphProp_Gujarati}, {{ oriya_features, 13}, required_oriya_features, "orya", "ory2", ContextualShape_Oriya, ShapeCharGlyphProp_Oriya}, {{ oriya_features, 13}, required_oriya_features, "orya", "ory2", ContextualShape_Oriya, ShapeCharGlyphProp_Oriya}, {{ tamil_features, 12}, required_tamil_features, "taml", "tam2", ContextualShape_Tamil, ShapeCharGlyphProp_Tamil}, {{ tamil_features, 12}, required_tamil_features, "taml", "tam2", ContextualShape_Tamil, ShapeCharGlyphProp_Tamil}, {{ telugu_features, 15}, required_telugu_features, "telu", "tel2", ContextualShape_Telugu, ShapeCharGlyphProp_Telugu}, {{ telugu_features, 15}, required_telugu_features, "telu", "tel2", ContextualShape_Telugu, ShapeCharGlyphProp_Telugu}, {{ telugu_features, 15}, required_telugu_features, "knda", "knd2", ContextualShape_Kannada, ShapeCharGlyphProp_Kannada}, {{ telugu_features, 15}, required_telugu_features, "knda", "knd2", ContextualShape_Kannada, ShapeCharGlyphProp_Kannada}, {{ telugu_features, 15}, required_telugu_features, "mlym", "mlm2", ContextualShape_Malayalam, ShapeCharGlyphProp_Malayalam}, {{ telugu_features, 15}, required_telugu_features, "mlym", "mlm2", ContextualShape_Malayalam, ShapeCharGlyphProp_Malayalam}, }; static INT GSUB_is_glyph_covered(LPCVOID table , UINT glyph) { const GSUB_CoverageFormat1* cf1; cf1 = table; if (GET_BE_WORD(cf1->CoverageFormat) == 1) { int count = GET_BE_WORD(cf1->GlyphCount); int i; TRACE("Coverage Format 1, %i glyphs\n",count); for (i = 0; i < count; i++) if (glyph == GET_BE_WORD(cf1->GlyphArray[i])) return i; return -1; } else if (GET_BE_WORD(cf1->CoverageFormat) == 2) { const GSUB_CoverageFormat2* cf2; int i; int count; cf2 = (const GSUB_CoverageFormat2*)cf1; count = GET_BE_WORD(cf2->RangeCount); TRACE("Coverage Format 2, %i ranges\n",count); for (i = 0; i < count; i++) { if (glyph < GET_BE_WORD(cf2->RangeRecord[i].Start)) return -1; if ((glyph >= GET_BE_WORD(cf2->RangeRecord[i].Start)) && (glyph <= GET_BE_WORD(cf2->RangeRecord[i].End))) { return (GET_BE_WORD(cf2->RangeRecord[i].StartCoverageIndex) + glyph - GET_BE_WORD(cf2->RangeRecord[i].Start)); } } return -1; } else ERR("Unknown CoverageFormat %i\n",GET_BE_WORD(cf1->CoverageFormat)); return -1; } static const GSUB_Script* GSUB_get_script_table( const GSUB_Header* header, const char* tag) { const GSUB_ScriptList *script; const GSUB_Script *deflt = NULL; int i; script = (const GSUB_ScriptList*)((const BYTE*)header + GET_BE_WORD(header->ScriptList)); TRACE("%i scripts in this font\n",GET_BE_WORD(script->ScriptCount)); for (i = 0; i < GET_BE_WORD(script->ScriptCount); i++) { const GSUB_Script *scr; int offset; offset = GET_BE_WORD(script->ScriptRecord[i].Script); scr = (const GSUB_Script*)((const BYTE*)script + offset); if (strncmp(script->ScriptRecord[i].ScriptTag, tag,4)==0) return scr; if (strncmp(script->ScriptRecord[i].ScriptTag, "dflt",4)==0) deflt = scr; } return deflt; } static const GSUB_LangSys* GSUB_get_lang_table( const GSUB_Script* script, const char* tag) { int i; int offset; const GSUB_LangSys *Lang; TRACE("Deflang %x, LangCount %i\n",GET_BE_WORD(script->DefaultLangSys), GET_BE_WORD(script->LangSysCount)); for (i = 0; i < GET_BE_WORD(script->LangSysCount) ; i++) { offset = GET_BE_WORD(script->LangSysRecord[i].LangSys); Lang = (const GSUB_LangSys*)((const BYTE*)script + offset); if ( strncmp(script->LangSysRecord[i].LangSysTag,tag,4)==0) return Lang; } offset = GET_BE_WORD(script->DefaultLangSys); if (offset) { Lang = (const GSUB_LangSys*)((const BYTE*)script + offset); return Lang; } return NULL; } static const GSUB_Feature * GSUB_get_feature(const GSUB_Header *header, const GSUB_LangSys *lang, const char* tag) { int i; const GSUB_FeatureList *feature; feature = (const GSUB_FeatureList*)((const BYTE*)header + GET_BE_WORD(header->FeatureList)); TRACE("%i features\n",GET_BE_WORD(lang->FeatureCount)); for (i = 0; i < GET_BE_WORD(lang->FeatureCount); i++) { int index = GET_BE_WORD(lang->FeatureIndex[i]); if (strncmp(feature->FeatureRecord[index].FeatureTag,tag,4)==0) { const GSUB_Feature *feat; feat = (const GSUB_Feature*)((const BYTE*)feature + GET_BE_WORD(feature->FeatureRecord[index].Feature)); return feat; } } return NULL; } static INT GSUB_apply_SingleSubst(const GSUB_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) { int j; TRACE("Single Substitution Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { int offset; const GSUB_SingleSubstFormat1 *ssf1; offset = GET_BE_WORD(look->SubTable[j]); ssf1 = (const GSUB_SingleSubstFormat1*)((const BYTE*)look+offset); if (GET_BE_WORD(ssf1->SubstFormat) == 1) { int offset = GET_BE_WORD(ssf1->Coverage); TRACE(" subtype 1, delta %i\n", GET_BE_WORD(ssf1->DeltaGlyphID)); if (GSUB_is_glyph_covered((const BYTE*)ssf1+offset, glyphs[glyph_index]) != -1) { TRACE(" Glyph 0x%x ->",glyphs[glyph_index]); glyphs[glyph_index] = glyphs[glyph_index] + GET_BE_WORD(ssf1->DeltaGlyphID); TRACE(" 0x%x\n",glyphs[glyph_index]); return glyph_index + 1; } } else { const GSUB_SingleSubstFormat2 *ssf2; INT index; INT offset; ssf2 = (const GSUB_SingleSubstFormat2 *)ssf1; offset = GET_BE_WORD(ssf1->Coverage); TRACE(" subtype 2, glyph count %i\n", GET_BE_WORD(ssf2->GlyphCount)); index = GSUB_is_glyph_covered((const BYTE*)ssf2+offset, glyphs[glyph_index]); TRACE(" Coverage index %i\n",index); if (index != -1) { if (glyphs[glyph_index] == GET_BE_WORD(ssf2->Substitute[index])) return GSUB_E_NOGLYPH; TRACE(" Glyph is 0x%x ->",glyphs[glyph_index]); glyphs[glyph_index] = GET_BE_WORD(ssf2->Substitute[index]); TRACE("0x%x\n",glyphs[glyph_index]); return glyph_index + 1; } } } return GSUB_E_NOGLYPH; } static INT GSUB_apply_AlternateSubst(const GSUB_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) { int j; TRACE("Alternate Substitution Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { int offset; const GSUB_AlternateSubstFormat1 *asf1; INT index; offset = GET_BE_WORD(look->SubTable[j]); asf1 = (const GSUB_AlternateSubstFormat1*)((const BYTE*)look+offset); offset = GET_BE_WORD(asf1->Coverage); index = GSUB_is_glyph_covered((const BYTE*)asf1+offset, glyphs[glyph_index]); if (index != -1) { const GSUB_AlternateSet *as; offset = GET_BE_WORD(asf1->AlternateSet[index]); as = (const GSUB_AlternateSet*)((const BYTE*)asf1+offset); FIXME("%i alternates, picking index 0\n",GET_BE_WORD(as->GlyphCount)); if (glyphs[glyph_index] == GET_BE_WORD(as->Alternate[0])) return GSUB_E_NOGLYPH; TRACE(" Glyph 0x%x ->",glyphs[glyph_index]); glyphs[glyph_index] = GET_BE_WORD(as->Alternate[0]); TRACE(" 0x%x\n",glyphs[glyph_index]); return glyph_index + 1; } } return GSUB_E_NOGLYPH; } static INT GSUB_apply_LigatureSubst(const GSUB_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) { int j; TRACE("Ligature Substitution Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { const GSUB_LigatureSubstFormat1 *lsf1; int offset,index; offset = GET_BE_WORD(look->SubTable[j]); lsf1 = (const GSUB_LigatureSubstFormat1*)((const BYTE*)look+offset); offset = GET_BE_WORD(lsf1->Coverage); index = GSUB_is_glyph_covered((const BYTE*)lsf1+offset, glyphs[glyph_index]); TRACE(" Coverage index %i\n",index); if (index != -1) { const GSUB_LigatureSet *ls; int k, count; offset = GET_BE_WORD(lsf1->LigatureSet[index]); ls = (const GSUB_LigatureSet*)((const BYTE*)lsf1+offset); count = GET_BE_WORD(ls->LigatureCount); TRACE(" LigatureSet has %i members\n",count); for (k = 0; k < count; k++) { const GSUB_Ligature *lig; int CompCount,l,CompIndex; offset = GET_BE_WORD(ls->Ligature[k]); lig = (const GSUB_Ligature*)((const BYTE*)ls+offset); CompCount = GET_BE_WORD(lig->CompCount) - 1; CompIndex = glyph_index+write_dir; for (l = 0; l < CompCount && CompIndex >= 0 && CompIndex < *glyph_count; l++) { int CompGlyph; CompGlyph = GET_BE_WORD(lig->Component[l]); if (CompGlyph != glyphs[CompIndex]) break; CompIndex += write_dir; } if (l == CompCount) { int replaceIdx = glyph_index; if (write_dir < 0) replaceIdx = glyph_index - CompCount; TRACE(" Glyph is 0x%x (+%i) ->",glyphs[glyph_index],CompCount); glyphs[replaceIdx] = GET_BE_WORD(lig->LigGlyph); TRACE("0x%x\n",glyphs[replaceIdx]); if (CompCount > 0) { int j; for (j = replaceIdx + 1; j < *glyph_count; j++) glyphs[j] =glyphs[j+CompCount]; *glyph_count = *glyph_count - CompCount; } return replaceIdx + 1; } } } } return GSUB_E_NOGLYPH; } static INT GSUB_apply_ChainContextSubst(const GSUB_LookupList* lookup, const GSUB_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) { int j; BOOL done = FALSE; TRACE("Chaining Contextual Substitution Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount) && !done; j++) { const GSUB_ChainContextSubstFormat1 *ccsf1; int offset; int dirLookahead = write_dir; int dirBacktrack = -1 * write_dir; offset = GET_BE_WORD(look->SubTable[j]); ccsf1 = (const GSUB_ChainContextSubstFormat1*)((const BYTE*)look+offset); if (GET_BE_WORD(ccsf1->SubstFormat) == 1) { FIXME(" TODO: subtype 1 (Simple context glyph substitution)\n"); continue; } else if (GET_BE_WORD(ccsf1->SubstFormat) == 2) { FIXME(" TODO: subtype 2 (Class-based Chaining Context Glyph Substitution)\n"); continue; } else if (GET_BE_WORD(ccsf1->SubstFormat) == 3) { int k; int indexGlyphs; const GSUB_ChainContextSubstFormat3_1 *ccsf3_1; const GSUB_ChainContextSubstFormat3_2 *ccsf3_2; const GSUB_ChainContextSubstFormat3_3 *ccsf3_3; const GSUB_ChainContextSubstFormat3_4 *ccsf3_4; int newIndex = glyph_index; ccsf3_1 = (const GSUB_ChainContextSubstFormat3_1 *)ccsf1; TRACE(" subtype 3 (Coverage-based Chaining Context Glyph Substitution)\n"); for (k = 0; k < GET_BE_WORD(ccsf3_1->BacktrackGlyphCount); k++) { offset = GET_BE_WORD(ccsf3_1->Coverage[k]); if (GSUB_is_glyph_covered((const BYTE*)ccsf3_1+offset, glyphs[glyph_index + (dirBacktrack * (k+1))]) == -1) break; } if (k != GET_BE_WORD(ccsf3_1->BacktrackGlyphCount)) continue; TRACE("Matched Backtrack\n"); ccsf3_2 = (const GSUB_ChainContextSubstFormat3_2 *)(((LPBYTE)ccsf1)+sizeof(GSUB_ChainContextSubstFormat3_1) + (sizeof(WORD) * (GET_BE_WORD(ccsf3_1->BacktrackGlyphCount)-1))); indexGlyphs = GET_BE_WORD(ccsf3_2->InputGlyphCount); for (k = 0; k < indexGlyphs; k++) { offset = GET_BE_WORD(ccsf3_2->Coverage[k]); if (GSUB_is_glyph_covered((const BYTE*)ccsf3_1+offset, glyphs[glyph_index + (write_dir * k)]) == -1) break; } if (k != indexGlyphs) continue; TRACE("Matched IndexGlyphs\n"); ccsf3_3 = (const GSUB_ChainContextSubstFormat3_3 *)(((LPBYTE)ccsf3_2)+sizeof(GSUB_ChainContextSubstFormat3_2) + (sizeof(WORD) * (GET_BE_WORD(ccsf3_2->InputGlyphCount)-1))); for (k = 0; k < GET_BE_WORD(ccsf3_3->LookaheadGlyphCount); k++) { offset = GET_BE_WORD(ccsf3_3->Coverage[k]); if (GSUB_is_glyph_covered((const BYTE*)ccsf3_1+offset, glyphs[glyph_index + (dirLookahead * (indexGlyphs + k))]) == -1) break; } if (k != GET_BE_WORD(ccsf3_3->LookaheadGlyphCount)) continue; TRACE("Matched LookAhead\n"); ccsf3_4 = (const GSUB_ChainContextSubstFormat3_4 *)(((LPBYTE)ccsf3_3)+sizeof(GSUB_ChainContextSubstFormat3_3) + (sizeof(WORD) * (GET_BE_WORD(ccsf3_3->LookaheadGlyphCount)-1))); for (k = 0; k < GET_BE_WORD(ccsf3_4->SubstCount); k++) { int lookupIndex = GET_BE_WORD(ccsf3_4->SubstLookupRecord[k].LookupListIndex); int SequenceIndex = GET_BE_WORD(ccsf3_4->SubstLookupRecord[k].SequenceIndex) * write_dir; TRACE("SUBST: %i -> %i %i\n",k, SequenceIndex, lookupIndex); newIndex = GSUB_apply_lookup(lookup, lookupIndex, glyphs, glyph_index + SequenceIndex, write_dir, glyph_count); if (newIndex == -1) { ERR("Chain failed to generate a glyph\n"); continue; } } return newIndex; } } return -1; } static INT GSUB_apply_lookup(const GSUB_LookupList* lookup, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) { int offset; const GSUB_LookupTable *look; offset = GET_BE_WORD(lookup->Lookup[lookup_index]); look = (const GSUB_LookupTable*)((const BYTE*)lookup + offset); TRACE("type %i, flag %x, subtables %i\n",GET_BE_WORD(look->LookupType),GET_BE_WORD(look->LookupFlag),GET_BE_WORD(look->SubTableCount)); switch(GET_BE_WORD(look->LookupType)) { case 1: return GSUB_apply_SingleSubst(look, glyphs, glyph_index, write_dir, glyph_count); case 3: return GSUB_apply_AlternateSubst(look, glyphs, glyph_index, write_dir, glyph_count); case 4: return GSUB_apply_LigatureSubst(look, glyphs, glyph_index, write_dir, glyph_count); case 6: return GSUB_apply_ChainContextSubst(lookup, look, glyphs, glyph_index, write_dir, glyph_count); default: FIXME("We do not handle SubType %i\n",GET_BE_WORD(look->LookupType)); } return GSUB_E_NOGLYPH; } static INT GSUB_apply_feature(const GSUB_Header * header, const GSUB_Feature* feature, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) { int i; int out_index = GSUB_E_NOGLYPH; const GSUB_LookupList *lookup; lookup = (const GSUB_LookupList*)((const BYTE*)header + GET_BE_WORD(header->LookupList)); TRACE("%i lookups\n", GET_BE_WORD(feature->LookupCount)); for (i = 0; i < GET_BE_WORD(feature->LookupCount); i++) { out_index = GSUB_apply_lookup(lookup, GET_BE_WORD(feature->LookupListIndex[i]), glyphs, glyph_index, write_dir, glyph_count); if (out_index != GSUB_E_NOGLYPH) break; } if (out_index == GSUB_E_NOGLYPH) TRACE("lookups found no glyphs\n"); else { int out2; out2 = GSUB_apply_feature(header, feature, glyphs, glyph_index, write_dir, glyph_count); if (out2!=GSUB_E_NOGLYPH) out_index = out2; } return out_index; } static const char* get_opentype_script(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache *psc, BOOL tryNew) { UINT charset; if (psc->userScript != 0) { if (tryNew && ShapingData[psa->eScript].newOtTag[0] != 0 && strncmp((char*)&psc->userScript,ShapingData[psa->eScript].otTag,4)==0) return ShapingData[psa->eScript].newOtTag; else return (char*)&psc->userScript; } if (tryNew && ShapingData[psa->eScript].newOtTag[0] != 0) return ShapingData[psa->eScript].newOtTag; if (ShapingData[psa->eScript].otTag[0] != 0) return ShapingData[psa->eScript].otTag; /* * fall back to the font charset */ charset = GetTextCharsetInfo(hdc, NULL, 0x0); switch (charset) { case ANSI_CHARSET: return "latn"; case BALTIC_CHARSET: return "latn"; /* ?? */ case CHINESEBIG5_CHARSET: return "hani"; case EASTEUROPE_CHARSET: return "latn"; /* ?? */ case GB2312_CHARSET: return "hani"; case GREEK_CHARSET: return "grek"; case HANGUL_CHARSET: return "hang"; case RUSSIAN_CHARSET: return "cyrl"; case SHIFTJIS_CHARSET: return "kana"; case TURKISH_CHARSET: return "latn"; /* ?? */ case VIETNAMESE_CHARSET: return "latn"; case JOHAB_CHARSET: return "latn"; /* ?? */ case ARABIC_CHARSET: return "arab"; case HEBREW_CHARSET: return "hebr"; case THAI_CHARSET: return "thai"; default: return "latn"; } } static LPCVOID load_GSUB_feature(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache *psc, const char* feat) { const GSUB_Feature *feature; int i; for (i = 0; i < psc->feature_count; i++) if (strncmp(psc->features[i].tag,feat,4)==0) return psc->features[i].feature; feature = NULL; if (psc->GSUB_Table) { const GSUB_Script *script; const GSUB_LangSys *language; int attempt = 2; do { script = GSUB_get_script_table(psc->GSUB_Table, get_opentype_script(hdc,psa,psc,(attempt==2))); attempt--; if (script) { if (psc->userLang != 0) language = GSUB_get_lang_table(script,(char*)&psc->userLang); else language = GSUB_get_lang_table(script, "xxxx"); /* Need to get Lang tag */ if (language) feature = GSUB_get_feature(psc->GSUB_Table, language, feat); } } while(attempt && !feature); /* try in the default (latin) table */ if (!feature) { script = GSUB_get_script_table(psc->GSUB_Table, "latn"); if (script) { language = GSUB_get_lang_table(script, "xxxx"); /* Need to get Lang tag */ if (language) feature = GSUB_get_feature(psc->GSUB_Table, language, feat); } } } TRACE("Feature %s located at %p\n",debugstr_an(feat,4),feature); psc->feature_count++; if (psc->features) psc->features = HeapReAlloc(GetProcessHeap(), 0, psc->features, psc->feature_count * sizeof(LoadedFeature)); else psc->features = HeapAlloc(GetProcessHeap(), 0, psc->feature_count * sizeof(LoadedFeature)); lstrcpynA(psc->features[psc->feature_count - 1].tag, feat, 5); psc->features[psc->feature_count - 1].feature = feature; return feature; } static INT apply_GSUB_feature_to_glyph(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache* psc, WORD *glyphs, INT index, INT write_dir, INT* glyph_count, const char* feat) { const GSUB_Feature *feature; feature = load_GSUB_feature(hdc, psa, psc, feat); if (!feature) return GSUB_E_NOFEATURE; TRACE("applying feature %s\n",feat); return GSUB_apply_feature(psc->GSUB_Table, feature, glyphs, index, write_dir, glyph_count); } static VOID *load_gsub_table(HDC hdc) { VOID* GSUB_Table = NULL; int length = GetFontData(hdc, GSUB_TAG , 0, NULL, 0); if (length != GDI_ERROR) { GSUB_Table = HeapAlloc(GetProcessHeap(),0,length); GetFontData(hdc, GSUB_TAG , 0, GSUB_Table, length); TRACE("Loaded GSUB table of %i bytes\n",length); } return GSUB_Table; } static WORD GDEF_get_glyph_class(const GDEF_Header *header, WORD glyph) { int offset; WORD class = 0; const GDEF_ClassDefFormat1 *cf1; if (!header) return 0; offset = GET_BE_WORD(header->GlyphClassDef); if (!offset) return 0; cf1 = (GDEF_ClassDefFormat1*)(((BYTE*)header)+offset); if (GET_BE_WORD(cf1->ClassFormat) == 1) { if (glyph >= GET_BE_WORD(cf1->StartGlyph)) { int index = glyph - GET_BE_WORD(cf1->StartGlyph); if (index < GET_BE_WORD(cf1->GlyphCount)) class = GET_BE_WORD(cf1->ClassValueArray[index]); } } else if (GET_BE_WORD(cf1->ClassFormat) == 2) { const GDEF_ClassDefFormat2 *cf2 = (GDEF_ClassDefFormat2*)cf1; int i, top; top = GET_BE_WORD(cf2->ClassRangeCount); for (i = 0; i < top; i++) { if (glyph >= GET_BE_WORD(cf2->ClassRangeRecord[i].Start) && glyph <= GET_BE_WORD(cf2->ClassRangeRecord[i].End)) { class = GET_BE_WORD(cf2->ClassRangeRecord[i].Class); break; } } } else ERR("Unknown Class Format %i\n",GET_BE_WORD(cf1->ClassFormat)); return class; } static VOID *load_gdef_table(HDC hdc) { VOID* GDEF_Table = NULL; int length = GetFontData(hdc, GDEF_TAG , 0, NULL, 0); if (length != GDI_ERROR) { GDEF_Table = HeapAlloc(GetProcessHeap(),0,length); GetFontData(hdc, GDEF_TAG , 0, GDEF_Table, length); TRACE("Loaded GDEF table of %i bytes\n",length); } return GDEF_Table; } static void GDEF_UpdateGlyphProps(HDC hdc, ScriptCache *psc, const WORD *pwGlyphs, const WORD cGlyphs, WORD* pwLogClust, SCRIPT_GLYPHPROP *pGlyphProp) { int i; if (!psc->GDEF_Table) psc->GDEF_Table = load_gdef_table(hdc); for (i = 0; i < cGlyphs; i++) { WORD class; class = GDEF_get_glyph_class(psc->GDEF_Table, pwGlyphs[i]); switch (class) { case 0: case BaseGlyph: pGlyphProp[i].sva.fClusterStart = 1; pGlyphProp[i].sva.fDiacritic = 0; pGlyphProp[i].sva.fZeroWidth = 0; break; case LigatureGlyph: pGlyphProp[i].sva.fClusterStart = 1; pGlyphProp[i].sva.fDiacritic = 0; pGlyphProp[i].sva.fZeroWidth = 0; break; case MarkGlyph: pGlyphProp[i].sva.fClusterStart = 0; pGlyphProp[i].sva.fDiacritic = 1; pGlyphProp[i].sva.fZeroWidth = 1; break; case ComponentGlyph: pGlyphProp[i].sva.fClusterStart = 0; pGlyphProp[i].sva.fDiacritic = 0; pGlyphProp[i].sva.fZeroWidth = 0; break; default: ERR("Unknown glyph class %i\n",class); pGlyphProp[i].sva.fClusterStart = 1; pGlyphProp[i].sva.fDiacritic = 0; pGlyphProp[i].sva.fZeroWidth = 0; } } } static void UpdateClustersFromGlyphProp(const int cGlyphs, const int cChars, WORD* pwLogClust, SCRIPT_GLYPHPROP *pGlyphProp) { int i; for (i = 0; i < cGlyphs; i++) { if (!pGlyphProp[i].sva.fClusterStart) { int j; for (j = 0; j < cChars; j++) { if (pwLogClust[j] == i) { int k = j; while (!pGlyphProp[pwLogClust[k]].sva.fClusterStart && k >= 0 && k 0) for (i = 0; i < chars; i++) { if (pwLogClust[i] == target_glyph) { target_index = i; break; } } else for (i = chars - 1; i >= 0; i--) { if (pwLogClust[i] == target_glyph) { target_index = i; break; } } if (target_index == -1) { ERR("Unable to find target glyph\n"); return; } if (changeCount < 0) { /* merge glyphs */ for(i = target_index; i < chars && i >= 0; i+=write_dir) { if (pwLogClust[i] == target_glyph) continue; if(pwLogClust[i] == replacing_glyph) pwLogClust[i] = target_glyph; else { changed--; if (changed >= changeCount) { replacing_glyph = pwLogClust[i]; pwLogClust[i] = target_glyph; } else break; } } } /* renumber trailing indexes*/ for(i = target_index; i < chars && i >= 0; i+=write_dir) { if (pwLogClust[i] != target_glyph) pwLogClust[i] += changeCount; } } } static int apply_GSUB_feature(HDC hdc, SCRIPT_ANALYSIS *psa, ScriptCache* psc, WORD *pwOutGlyphs, int write_dir, INT* pcGlyphs, INT cChars, const char* feat, WORD *pwLogClust ) { int i; if (psc->GSUB_Table) { const GSUB_Feature *feature; feature = load_GSUB_feature(hdc, psa, psc, feat); if (!feature) return GSUB_E_NOFEATURE; i = 0; TRACE("applying feature %s\n",debugstr_an(feat,4)); while(i < *pcGlyphs) { INT nextIndex; INT prevCount = *pcGlyphs; nextIndex = GSUB_apply_feature(psc->GSUB_Table, feature, pwOutGlyphs, i, write_dir, pcGlyphs); if (nextIndex > GSUB_E_NOGLYPH) { UpdateClusters(nextIndex, *pcGlyphs - prevCount, write_dir, cChars, pwLogClust); i = nextIndex; } else i++; } return *pcGlyphs; } return GSUB_E_NOFEATURE; } static WCHAR neighbour_char(int i, int delta, const WCHAR* chars, INT cchLen) { if (i + delta < 0) return 0; if ( i+ delta >= cchLen) return 0; i += delta; return chars[i]; } static CHAR neighbour_joining_type(int i, int delta, const CHAR* context_type, INT cchLen, SCRIPT_ANALYSIS *psa) { if (i + delta < 0) { if (psa->fLinkBefore) return jtR; else return jtU; } if ( i+ delta >= cchLen) { if (psa->fLinkAfter) return jtL; else return jtU; } i += delta; if (context_type[i] == jtT) return neighbour_joining_type(i,delta,context_type,cchLen,psa); else return context_type[i]; } static inline BOOL right_join_causing(CHAR joining_type) { return (joining_type == jtL || joining_type == jtD || joining_type == jtC); } static inline BOOL left_join_causing(CHAR joining_type) { return (joining_type == jtR || joining_type == jtD || joining_type == jtC); } static inline BOOL word_break_causing(WCHAR chr) { /* we are working within a string of characters already guareented to be within one script, Syriac, so we do not worry about any characers other than the space character outside of that range */ return (chr == 0 || chr == 0x20 ); } /* * ContextualShape_Arabic */ static void ContextualShape_Arabic(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { CHAR *context_type; INT *context_shape; INT dirR, dirL; int i; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } if (!psa->fLogicalOrder && psa->fRTL) { dirR = 1; dirL = -1; } else { dirR = -1; dirL = 1; } if (!psc->GSUB_Table) psc->GSUB_Table = load_gsub_table(hdc); context_type = HeapAlloc(GetProcessHeap(),0,cChars); context_shape = HeapAlloc(GetProcessHeap(),0,sizeof(INT) * cChars); for (i = 0; i < cChars; i++) context_type[i] = wine_shaping_table[wine_shaping_table[pwcChars[i] >> 8] + (pwcChars[i] & 0xff)]; for (i = 0; i < cChars; i++) { if (context_type[i] == jtR && right_join_causing(neighbour_joining_type(i,dirR,context_type,cChars,psa))) context_shape[i] = Xr; else if (context_type[i] == jtL && left_join_causing(neighbour_joining_type(i,dirL,context_type,cChars,psa))) context_shape[i] = Xl; else if (context_type[i] == jtD && left_join_causing(neighbour_joining_type(i,dirL,context_type,cChars,psa)) && right_join_causing(neighbour_joining_type(i,dirR,context_type,cChars,psa))) context_shape[i] = Xm; else if (context_type[i] == jtD && right_join_causing(neighbour_joining_type(i,dirR,context_type,cChars,psa))) context_shape[i] = Xr; else if (context_type[i] == jtD && left_join_causing(neighbour_joining_type(i,dirL,context_type,cChars,psa))) context_shape[i] = Xl; else context_shape[i] = Xn; } /* Contextual Shaping */ i = 0; while(i < *pcGlyphs) { BOOL shaped = FALSE; if (psc->GSUB_Table) { INT nextIndex; INT prevCount = *pcGlyphs; nextIndex = apply_GSUB_feature_to_glyph(hdc, psa, psc, pwOutGlyphs, i, dirL, pcGlyphs, contextual_features[context_shape[i]]); if (nextIndex > GSUB_E_NOGLYPH) { i = nextIndex; UpdateClusters(nextIndex, *pcGlyphs - prevCount, dirL, cChars, pwLogClust); } shaped = (nextIndex > GSUB_E_NOGLYPH); } if (!shaped) { WORD newGlyph = pwOutGlyphs[i]; if (pwcChars[i] >= FIRST_ARABIC_CHAR && pwcChars[i] <= LAST_ARABIC_CHAR) { /* fall back to presentation form B */ WCHAR context_char = wine_shaping_forms[pwcChars[i] - FIRST_ARABIC_CHAR][context_shape[i]]; if (context_char != pwcChars[i] && GetGlyphIndicesW(hdc, &context_char, 1, &newGlyph, 0) != GDI_ERROR && newGlyph != 0x0000) pwOutGlyphs[i] = newGlyph; } i++; } } HeapFree(GetProcessHeap(),0,context_shape); HeapFree(GetProcessHeap(),0,context_type); } /* * ContextualShape_Syriac */ #define ALAPH 0x710 #define DALATH 0x715 #define RISH 0x72A static void ContextualShape_Syriac(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { CHAR *context_type; INT *context_shape; INT dirR, dirL; int i; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } if (!psa->fLogicalOrder && psa->fRTL) { dirR = 1; dirL = -1; } else { dirR = -1; dirL = 1; } if (!psc->GSUB_Table) psc->GSUB_Table = load_gsub_table(hdc); if (!psc->GSUB_Table) return; context_type = HeapAlloc(GetProcessHeap(),0,cChars); context_shape = HeapAlloc(GetProcessHeap(),0,sizeof(INT) * cChars); for (i = 0; i < cChars; i++) context_type[i] = wine_shaping_table[wine_shaping_table[pwcChars[i] >> 8] + (pwcChars[i] & 0xff)]; for (i = 0; i < cChars; i++) { if (pwcChars[i] == ALAPH) { WCHAR rchar = neighbour_char(i,dirR,pwcChars,cChars); if (left_join_causing(neighbour_joining_type(i,dirR,context_type,cChars,psa)) && word_break_causing(neighbour_char(i,dirL,pwcChars,cChars))) context_shape[i] = Afj; else if ( rchar != DALATH && rchar != RISH && !left_join_causing(neighbour_joining_type(i,dirR,context_type,cChars,psa)) && word_break_causing(neighbour_char(i,dirL,pwcChars,cChars))) context_shape[i] = Afn; else if ( (rchar == DALATH || rchar == RISH) && word_break_causing(neighbour_char(i,dirL,pwcChars,cChars))) context_shape[i] = Afx; else context_shape[i] = Xn; } else if (context_type[i] == jtR && right_join_causing(neighbour_joining_type(i,dirR,context_type,cChars,psa))) context_shape[i] = Xr; else if (context_type[i] == jtL && left_join_causing(neighbour_joining_type(i,dirL,context_type,cChars,psa))) context_shape[i] = Xl; else if (context_type[i] == jtD && left_join_causing(neighbour_joining_type(i,dirL,context_type,cChars,psa)) && right_join_causing(neighbour_joining_type(i,dirR,context_type,cChars,psa))) context_shape[i] = Xm; else if (context_type[i] == jtD && right_join_causing(neighbour_joining_type(i,dirR,context_type,cChars,psa))) context_shape[i] = Xr; else if (context_type[i] == jtD && left_join_causing(neighbour_joining_type(i,dirL,context_type,cChars,psa))) context_shape[i] = Xl; else context_shape[i] = Xn; } /* Contextual Shaping */ i = 0; while(i < *pcGlyphs) { INT nextIndex; INT prevCount = *pcGlyphs; nextIndex = apply_GSUB_feature_to_glyph(hdc, psa, psc, pwOutGlyphs, i, dirL, pcGlyphs, contextual_features[context_shape[i]]); if (nextIndex > GSUB_E_NOGLYPH) { UpdateClusters(nextIndex, *pcGlyphs - prevCount, dirL, cChars, pwLogClust); i = nextIndex; } else i++; } HeapFree(GetProcessHeap(),0,context_shape); HeapFree(GetProcessHeap(),0,context_type); } /* * ContextualShape_Phags_pa */ #define phags_pa_CANDRABINDU 0xA873 #define phags_pa_START 0xA840 #define phags_pa_END 0xA87F static void ContextualShape_Phags_pa(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { INT *context_shape; INT dirR, dirL; int i; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } if (!psa->fLogicalOrder && psa->fRTL) { dirR = 1; dirL = -1; } else { dirR = -1; dirL = 1; } if (!psc->GSUB_Table) psc->GSUB_Table = load_gsub_table(hdc); if (!psc->GSUB_Table) return; context_shape = HeapAlloc(GetProcessHeap(),0,sizeof(INT) * cChars); for (i = 0; i < cChars; i++) { if (pwcChars[i] >= phags_pa_START && pwcChars[i] <= phags_pa_END) { WCHAR rchar = neighbour_char(i,dirR,pwcChars,cChars); WCHAR lchar = neighbour_char(i,dirL,pwcChars,cChars); BOOL jrchar = (rchar != phags_pa_CANDRABINDU && rchar >= phags_pa_START && rchar <= phags_pa_END); BOOL jlchar = (lchar != phags_pa_CANDRABINDU && lchar >= phags_pa_START && lchar <= phags_pa_END); if (jrchar && jlchar) context_shape[i] = Xm; else if (jrchar) context_shape[i] = Xr; else if (jlchar) context_shape[i] = Xl; else context_shape[i] = Xn; } else context_shape[i] = -1; } /* Contextual Shaping */ i = 0; while(i < *pcGlyphs) { if (context_shape[i] >= 0) { INT nextIndex; INT prevCount = *pcGlyphs; nextIndex = apply_GSUB_feature_to_glyph(hdc, psa, psc, pwOutGlyphs, i, dirL, pcGlyphs, contextual_features[context_shape[i]]); if (nextIndex > GSUB_E_NOGLYPH) { UpdateClusters(nextIndex, *pcGlyphs - prevCount, dirL, cChars, pwLogClust); i = nextIndex; } else i++; } else i++; } HeapFree(GetProcessHeap(),0,context_shape); } static void ReplaceInsertChars(HDC hdc, INT cWalk, INT* pcChars, WCHAR *pwOutChars, const WCHAR *replacements) { int i; /* Replace */ pwOutChars[cWalk] = replacements[0]; cWalk=cWalk+1; /* Insert */ for (i = 1; replacements[i] != 0x0000 && i < 3; i++) { int j; for (j = *pcChars; j > cWalk; j--) pwOutChars[j] = pwOutChars[j-1]; *pcChars= *pcChars+1; pwOutChars[cWalk] = replacements[i]; cWalk = cWalk+1; } } static void DecomposeVowels(HDC hdc, WCHAR *pwOutChars, INT *pcChars, const VowelComponents vowels[]) { int i; int cWalk; for (cWalk = 0; cWalk < *pcChars; cWalk++) { for (i = 0; vowels[i].base != 0x0; i++) { if (pwOutChars[cWalk] == vowels[i].base) { ReplaceInsertChars(hdc, cWalk, pcChars, pwOutChars, vowels[i].parts); break; } } } } static void ComposeConsonants(HDC hdc, WCHAR *pwOutChars, INT *pcChars, const ConsonantComponents consonants[]) { int i; int cWalk; for (cWalk = 0; cWalk < *pcChars; cWalk++) { for (i = 0; consonants[i].output!= 0x0; i++) { int j; for (j = 0; j + cWalk < *pcChars && consonants[i].parts[j]!=0x0; j++) if (pwOutChars[cWalk+j] != consonants[i].parts[j]) break; if (consonants[i].parts[j]==0x0) /* matched all */ { int k; j--; pwOutChars[cWalk] = consonants[i].output; for(k = cWalk+1; k < *pcChars - j; k++) pwOutChars[k] = pwOutChars[k+j]; *pcChars = *pcChars - j; break; } } cWalk++; } } static void Reorder_Ra_follows_base(LPWSTR pwChar, INT start, INT main, INT end, lexical_function lexical) { if (start != main && end > start+1 && lexical(pwChar[start]) == lex_Ra && lexical(pwChar[start+1]) == lex_Halant) { int j; WORD Ra = pwChar[start]; WORD H = pwChar[start+1]; TRACE("Doing reorder of Ra to %i\n",main); for (j = start; j < main-1; j++) pwChar[j] = pwChar[j+2]; pwChar[main-1] = Ra; pwChar[main] = H; } } static void Reorder_Ra_follows_matra(LPWSTR pwChar, INT start, INT main, INT end, lexical_function lexical) { if (start != main && end > start+1 && lexical(pwChar[start]) == lex_Ra && lexical(pwChar[start+1]) == lex_Halant) { int j,loc; WORD Ra = pwChar[start]; WORD H = pwChar[start+1]; for (loc = end; loc > main; loc--) if (lexical(pwChar[loc]) == lex_Matra_post || lexical(pwChar[loc]) == lex_Matra_below) break; TRACE("Doing reorder of Ra to %i\n",loc); for (j = start; j < loc-1; j++) pwChar[j] = pwChar[j+2]; pwChar[loc-1] = Ra; pwChar[loc] = H; } } static void Reorder_Ra_follows_syllable(LPWSTR pwChar, INT start, INT main, INT end, lexical_function lexical) { if (start != main && end > start+1 && lexical(pwChar[start]) == lex_Ra && lexical(pwChar[start+1]) == lex_Halant) { int j; WORD Ra = pwChar[start]; WORD H = pwChar[start+1]; TRACE("Doing reorder of Ra to %i\n",end-1); for (j = start; j < end-1; j++) pwChar[j] = pwChar[j+2]; pwChar[end-1] = Ra; pwChar[end] = H; } } static void Reorder_Matra_precede_base(LPWSTR pwChar, INT start, INT main, INT end, lexical_function lexical) { int i; /* reorder Matras */ if (end > main) { for (i = 1; i <= end-main; i++) { if (lexical(pwChar[main+i]) == lex_Matra_pre) { int j; WCHAR c = pwChar[main+i]; TRACE("Doing reorder of %x %x\n",c,pwChar[main]); for (j = main+i; j > main; j--) pwChar[j] = pwChar[j-1]; pwChar[main] = c; } } } } static void Reorder_Matra_precede_syllable(LPWSTR pwChar, INT start, INT main, INT end, lexical_function lexical) { int i; /* reorder Matras */ if (end > main) { for (i = 1; i <= end-main; i++) { if (lexical(pwChar[main+i]) == lex_Matra_pre) { int j; WCHAR c = pwChar[main+i]; TRACE("Doing reorder of %x to %i\n",c,start); for (j = main+i; j > start; j--) pwChar[j] = pwChar[j-1]; pwChar[start] = c; } } } } static void Reorder_Like_Sinhala(LPWSTR pwChar, INT start, INT main, INT end, lexical_function lexical) { TRACE("Syllable (%i..%i..%i)\n",start,main,end); if (start == main && main == end) return; main = Indic_FindBaseConsonant(pwChar, start, main, end, lexical); if (lexical(pwChar[main]) == lex_Vowel) return; Reorder_Ra_follows_base(pwChar, start, main, end, lexical); Reorder_Matra_precede_base(pwChar, start, main, end, lexical); } static void Reorder_Like_Devanagari(LPWSTR pwChar, INT start, INT main, INT end, lexical_function lexical) { TRACE("Syllable (%i..%i..%i)\n",start,main,end); if (start == main && main == end) return; main = Indic_FindBaseConsonant(pwChar, start, main, end, lexical); if (lexical(pwChar[main]) == lex_Vowel) return; Reorder_Ra_follows_matra(pwChar, start, main, end, lexical); Reorder_Matra_precede_syllable(pwChar, start, main, end, lexical); } static void Reorder_Like_Bengali(LPWSTR pwChar, INT start, INT main, INT end, lexical_function lexical) { TRACE("Syllable (%i..%i..%i)\n",start,main,end); if (start == main && main == end) return; main = Indic_FindBaseConsonant(pwChar, start, main, end, lexical); if (lexical(pwChar[main]) == lex_Vowel) return; Reorder_Ra_follows_base(pwChar, start, main, end, lexical); Reorder_Matra_precede_syllable(pwChar, start, main, end, lexical); } static void Reorder_Like_Kannada(LPWSTR pwChar, INT start, INT main, INT end, lexical_function lexical) { TRACE("Syllable (%i..%i..%i)\n",start,main,end); if (start == main && main == end) return; main = Indic_FindBaseConsonant(pwChar, start, main, end, lexical); if (lexical(pwChar[main]) == lex_Vowel) return; Reorder_Ra_follows_syllable(pwChar, start, main, end, lexical); Reorder_Matra_precede_syllable(pwChar, start, main, end, lexical); } static void Reorder_Like_Malayalam(LPWSTR pwChar, INT start, INT main, INT end, lexical_function lexical) { TRACE("Syllable (%i..%i..%i)\n",start,main,end); if (start == main && main == end) return; main = Indic_FindBaseConsonant(pwChar, start, main, end, lexical); if (lexical(pwChar[main]) == lex_Vowel) return; Reorder_Ra_follows_matra(pwChar, start, main, end, lexical); Reorder_Matra_precede_base(pwChar, start, main, end, lexical); } static int sinhala_lex(WCHAR c) { switch (c) { case 0x0DCA: return lex_Halant; case 0x0DCF: case 0x0DDF: case 0x0DD8: return lex_Matra_post; case 0x0DD9: case 0x0DDB: return lex_Matra_pre; case 0x0DDA: case 0x0DDC: return lex_Composed_Vowel; case 0x200D: return lex_ZWJ; case 0x200C: return lex_ZWNJ; case 0x00A0: return lex_NBSP; default: if (c>=0x0D82 && c <=0x0D83) return lex_Modifier; else if (c>=0x0D85 && c <=0x0D96) return lex_Vowel; else if (c>=0x0D96 && c <=0x0DC6) return lex_Consonant; else if (c>=0x0DD0 && c <=0x0DD1) return lex_Matra_post; else if (c>=0x0DD2 && c <=0x0DD3) return lex_Matra_above; else if (c>=0x0DD4 && c <=0x0DD6) return lex_Matra_below; else if (c>=0x0DDD && c <=0x0DDE) return lex_Composed_Vowel; else if (c>=0x0DF2 && c <=0x0DF3) return lex_Matra_post; else return lex_Generic; } } static const VowelComponents Sinhala_vowels[] = { {0x0DDA, {0x0DD9,0x0DCA,0x0}}, {0x0DDC, {0x0DD9,0x0DCF,0x0}}, {0x0DDD, {0x0DD9,0x0DCF,0x0DCA}}, {0x0DDE, {0x0DD9,0x0DDF,0x0}}, {0x0000, {0x0000,0x0000,0x0}}}; static void ContextualShape_Sinhala(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { int cCount = cChars; WCHAR *input; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } input = HeapAlloc(GetProcessHeap(),0,sizeof(WCHAR) * (cChars * 3)); memcpy(input, pwcChars, cChars * sizeof(WCHAR)); /* Step 1: Decompose multi part vowels */ DecomposeVowels(hdc, input, &cCount, Sinhala_vowels); TRACE("New double vowel expanded string %s (%i)\n",debugstr_wn(input,cCount),cCount); /* Step 2: Reorder within Syllables */ Indic_ReorderCharacters( input, cCount, sinhala_lex, Reorder_Like_Sinhala); TRACE("reordered string %s\n",debugstr_wn(input,cCount)); /* Step 3: Get glyphs */ GetGlyphIndicesW(hdc, input, cCount, pwOutGlyphs, 0); *pcGlyphs = cCount; HeapFree(GetProcessHeap(),0,input); } static int devanagari_lex(WCHAR c) { switch (c) { case 0x0951: case 0x0952: case 0x0903: return lex_Modifier; case 0x0930: return lex_Ra; case 0x093C: return lex_Nukta; case 0x0940: case 0x093E: return lex_Matra_post; case 0x093F: return lex_Matra_pre; case 0x094D: return lex_Halant; case 0x0972: return lex_Vowel; case 0x200C: return lex_ZWNJ; case 0x200D: return lex_ZWJ; default: if (c>=0x0901 && c<=0x0902) return lex_Matra_above; else if (c>=0x0904 && c<=0x0914) return lex_Vowel; else if (c>=0x0915 && c<=0x0939) return lex_Consonant; else if (c>=0x0941 && c<=0x0944) return lex_Matra_below; else if (c>=0x0945 && c<=0x0948) return lex_Matra_above; else if (c>=0x0949 && c<=0x094C) return lex_Matra_post; else if (c>=0x0953 && c<=0x0954) return lex_Modifier; else if (c>=0x0958 && c<=0x095F) return lex_Consonant; else if (c>=0x0960 && c<=0x0961) return lex_Vowel; else if (c>=0x0962 && c<=0x0963) return lex_Matra_below; else if (c>=0x097B && c<=0x097C) return lex_Consonant; else if (c>=0x097E && c<=0x097F) return lex_Consonant; else return lex_Generic; } } static const ConsonantComponents Devanagari_consonants[] ={ {{0x0928, 0x093C, 0x00000}, 0x0929}, {{0x0930, 0x093C, 0x00000}, 0x0931}, {{0x0933, 0x093C, 0x00000}, 0x0934}, {{0x0915, 0x093C, 0x00000}, 0x0958}, {{0x0916, 0x093C, 0x00000}, 0x0959}, {{0x0917, 0x093C, 0x00000}, 0x095A}, {{0x091C, 0x093C, 0x00000}, 0x095B}, {{0x0921, 0x093C, 0x00000}, 0x095C}, {{0x0922, 0x093C, 0x00000}, 0x095D}, {{0x092B, 0x093C, 0x00000}, 0x095E}, {{0x092F, 0x093C, 0x00000}, 0x095F}}; static void ContextualShape_Devanagari(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { int cCount = cChars; WCHAR *input; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } input = HeapAlloc(GetProcessHeap(), 0, cChars * sizeof(WCHAR)); memcpy(input, pwcChars, cChars * sizeof(WCHAR)); /* Step 1: Compose Consonant and Nukta */ ComposeConsonants(hdc, input, &cCount, Devanagari_consonants); TRACE("New composed string %s (%i)\n",debugstr_wn(input,cCount),cCount); /* Step 2: Reorder within Syllables */ Indic_ReorderCharacters( input, cCount, devanagari_lex, Reorder_Like_Devanagari); TRACE("reordered string %s\n",debugstr_wn(input,cCount)); GetGlyphIndicesW(hdc, input, cCount, pwOutGlyphs, 0); *pcGlyphs = cCount; HeapFree(GetProcessHeap(),0,input); } static int bengali_lex(WCHAR c) { switch (c) { case 0x0981: return lex_Modifier; case 0x09AC: case 0x09AF: case 0x09CE: return lex_Consonant; case 0x09B0: return lex_Ra; case 0x09BC: return lex_Nukta; case 0x09BF: return lex_Matra_pre; case 0x09D7: case 0x09BE: case 0x09C0: return lex_Matra_post; case 0x09CD: return lex_Halant; case 0x200C: return lex_ZWNJ; case 0x200D: return lex_ZWJ; default: if (c>=0x0982 && c<=0x0983) return lex_Matra_post; else if (c>=0x0985 && c<=0x0994) return lex_Vowel; else if (c>=0x0995 && c<=0x09B9) return lex_Consonant; else if (c>=0x09C1 && c<=0x09C4) return lex_Matra_below; else if (c>=0x09C7 && c<=0x09C8) return lex_Matra_pre; else if (c>=0x09DC && c<=0x09DF) return lex_Consonant; else if (c>=0x09E0 && c<=0x09E1) return lex_Vowel; else if (c>=0x09E2 && c<=0x09E3) return lex_Matra_below; else if (c>=0x09F0 && c<=0x09F1) return lex_Consonant; else return lex_Generic; } } static const VowelComponents Bengali_vowels[] = { {0x09CB, {0x09C7,0x09BE,0x0000}}, {0x09CC, {0x09C7,0x09D7,0x0000}}, {0x0000, {0x0000,0x0000,0x0000}}}; static const ConsonantComponents Bengali_consonants[] = { {{0x09A4,0x09CD,0x200D}, 0x09CE}, {{0x09A1,0x09BC,0x0000}, 0x09DC}, {{0x09A2,0x09BC,0x0000}, 0x09DD}, {{0x09AF,0x09BC,0x0000}, 0x09DF}, {{0x0000,0x0000,0x0000}, 0x0000}}; static void ContextualShape_Bengali(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { int cCount = cChars; WCHAR *input; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } input = HeapAlloc(GetProcessHeap(), 0, (cChars * 2) * sizeof(WCHAR)); memcpy(input, pwcChars, cChars * sizeof(WCHAR)); /* Step 1: Decompose Vowels and Compose Consonents */ DecomposeVowels(hdc, input, &cCount, Bengali_vowels); ComposeConsonants(hdc, input, &cCount, Bengali_consonants); TRACE("New composed string %s (%i)\n",debugstr_wn(input,cCount),cCount); /* Step 2: Reorder within Syllables */ Indic_ReorderCharacters( input, cCount, bengali_lex, Reorder_Like_Bengali); TRACE("reordered string %s\n",debugstr_wn(input,cCount)); GetGlyphIndicesW(hdc, input, cCount, pwOutGlyphs, 0); *pcGlyphs = cCount; HeapFree(GetProcessHeap(),0,input); } static int gurmukhi_lex(WCHAR c) { switch (c) { case 0x0A30: case 0x0A35: case 0x0A39: case 0x0A2f: return lex_Consonant; case 0x0A3C: return lex_Nukta; case 0x0A3F: return lex_Matra_pre; case 0x0A03: case 0x0A3E: case 0x0A40: return lex_Matra_post; case 0x0A4D: return lex_Halant; case 0x0A70: case 0x0A71: return lex_Modifier; case 0x200C: return lex_ZWNJ; case 0x200D: return lex_ZWJ; default: if (c>=0x0A01 && c<=0x0A02) return lex_Modifier; else if (c>=0x0A05 && c<=0x0A14) return lex_Vowel; else if (c>=0x0A15 && c<=0x0A38) return lex_Consonant; else if (c>=0x0A41 && c<=0x0A42) return lex_Matra_below; else if (c>=0x0A47 && c<=0x0A4C) return lex_Matra_above; else if (c>=0x0A59 && c<=0x0A5E) return lex_Consonant; else return lex_Generic; } } static const ConsonantComponents Gurmukhi_consonants[] = { {{0x0A32,0x0A3C,0x0000}, 0x0A33}, {{0x0A38,0x0A3C,0x0000}, 0x0A36}, {{0x0A16,0x0A3C,0x0000}, 0x0A59}, {{0x0A17,0x0A3C,0x0000}, 0x0A5A}, {{0x0A1C,0x0A3C,0x0000}, 0x0A5B}, {{0x0A2B,0x0A3C,0x0000}, 0x0A5E}, {{0x0000,0x0000,0x0000}, 0x0000}}; static void ContextualShape_Gurmukhi(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { int cCount = cChars; WCHAR *input; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } input = HeapAlloc(GetProcessHeap(), 0, cChars * sizeof(WCHAR)); memcpy(input, pwcChars, cChars * sizeof(WCHAR)); /* Step 1: Compose Consonents */ ComposeConsonants(hdc, input, &cCount, Gurmukhi_consonants); TRACE("New composed string %s (%i)\n",debugstr_wn(input,cCount),cCount); /* Step 2: Reorder within Syllables */ Indic_ReorderCharacters( input, cCount, gurmukhi_lex, Reorder_Like_Bengali); TRACE("reordered string %s\n",debugstr_wn(input,cCount)); GetGlyphIndicesW(hdc, input, cCount, pwOutGlyphs, 0); *pcGlyphs = cCount; HeapFree(GetProcessHeap(),0,input); } static int gujarati_lex(WCHAR c) { switch (c) { case 0x0A83: return lex_Modifier; case 0x0AB0: return lex_Ra; case 0x0ABC: return lex_Nukta; case 0x0ABF: return lex_Matra_pre; case 0x0ABE: case 0x0AC0: return lex_Matra_post; case 0x0ACD: return lex_Halant; case 0x200C: return lex_ZWNJ; case 0x200D: return lex_ZWJ; default: if (c>=0x0A81 && c<=0x0A82) return lex_Modifier; else if (c>=0x0A85 && c<=0x0A94) return lex_Vowel; else if (c>=0x0A95 && c<=0x0AB9) return lex_Consonant; else if (c>=0x0AC1 && c<=0x0AC4) return lex_Matra_below; else if (c>=0x0AC5 && c<=0x0AC8) return lex_Matra_above; else if (c>=0x0AC9 && c<=0x0ACC) return lex_Matra_post; else if (c>=0x0AE0 && c<=0x0AE1) return lex_Vowel; else if (c>=0x0AE2 && c<=0x0AE3) return lex_Matra_below; else return lex_Generic; } } static void ContextualShape_Gujarati(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { int cCount = cChars; WCHAR *input; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } input = HeapAlloc(GetProcessHeap(), 0, cChars * sizeof(WCHAR)); memcpy(input, pwcChars, cChars * sizeof(WCHAR)); /* Step 1: Reorder within Syllables */ Indic_ReorderCharacters( input, cCount, gujarati_lex, Reorder_Like_Devanagari); TRACE("reordered string %s\n",debugstr_wn(input,cCount)); GetGlyphIndicesW(hdc, input, cCount, pwOutGlyphs, 0); *pcGlyphs = cCount; HeapFree(GetProcessHeap(),0,input); } static int oriya_lex(WCHAR c) { switch (c) { case 0x0B24: case 0x0B28: case 0x0B2F: case 0x0B5F: case 0x0B71: case 0x0B33: return lex_Consonant; case 0x0B30: return lex_Ra; case 0x0B3C: return lex_Nukta; case 0x0B3F: case 0x0B56: return lex_Matra_above; case 0x0B3E: case 0x0B57: case 0x0B40: return lex_Matra_post; case 0x0B47: return lex_Matra_pre; case 0x0B4D: return lex_Halant; case 0x200C: return lex_ZWNJ; case 0x200D: return lex_ZWJ; default: if (c>=0x0B01 && c<=0x0B03) return lex_Modifier; else if (c>=0x0B05 && c<=0x0B14) return lex_Vowel; else if (c>=0x0B15 && c<=0x0B39) return lex_Consonant; else if (c>=0x0B2C && c<=0x0B2E) return lex_Consonant; else if (c>=0x0B32 && c<=0x0B33) return lex_Consonant; else if (c>=0x0B41 && c<=0x0B44) return lex_Matra_below; else if (c>=0x0B48 && c<=0x0B4C) return lex_Composed_Vowel; else if (c>=0x0B5C && c<=0x0B5D) return lex_Consonant; else if (c>=0x0B60 && c<=0x0B61) return lex_Vowel; else if (c>=0x0B62 && c<=0x0B63) return lex_Matra_below; else return lex_Generic; } } static const VowelComponents Oriya_vowels[] = { {0x0B48, {0x0B47,0x0B56,0x0000}}, {0x0B4B, {0x0B47,0x0B3E,0x0000}}, {0x0B4C, {0x0B47,0x0B57,0x0000}}, {0x0000, {0x0000,0x0000,0x0000}}}; static const ConsonantComponents Oriya_consonants[] = { {{0x0B21,0x0B3C,0x0000}, 0x0B5C}, {{0x0B22,0x0B3C,0x0000}, 0x0B5D}, {{0x0000,0x0000,0x0000}, 0x0000}}; static void ContextualShape_Oriya(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { int cCount = cChars; WCHAR *input; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } input = HeapAlloc(GetProcessHeap(), 0, (cChars*2) * sizeof(WCHAR)); memcpy(input, pwcChars, cChars * sizeof(WCHAR)); /* Step 1: Decompose Vowels and Compose Consonents */ DecomposeVowels(hdc, input, &cCount, Oriya_vowels); ComposeConsonants(hdc, input, &cCount, Oriya_consonants); TRACE("New composed string %s (%i)\n",debugstr_wn(input,cCount),cCount); /* Step 2: Reorder within Syllables */ Indic_ReorderCharacters( input, cCount, oriya_lex, Reorder_Like_Bengali); TRACE("reordered string %s\n",debugstr_wn(input,cCount)); GetGlyphIndicesW(hdc, input, cCount, pwOutGlyphs, 0); *pcGlyphs = cCount; HeapFree(GetProcessHeap(),0,input); } static int tamil_lex(WCHAR c) { switch (c) { case 0x0BC0: return lex_Matra_above; case 0x0BCD: return lex_Halant; case 0x0BD7: return lex_Matra_post; case 0x200C: return lex_ZWNJ; case 0x200D: return lex_ZWJ; default: if (c>=0x0B95 && c<=0x0BB9) return lex_Consonant; else if (c>=0x0BBE && c<=0x0BBF) return lex_Matra_post; else if (c>=0x0BC1 && c<=0x0BC2) return lex_Matra_below; else if (c>=0x0BC6 && c<=0x0BC8) return lex_Matra_pre; else return lex_Generic; } } static const VowelComponents Tamil_vowels[] = { {0x0BCA, {0x0BC6,0x0BBE,0x0000}}, {0x0BCB, {0x0BC7,0x0BBE,0x0000}}, {0x0BCB, {0x0BC6,0x0BD7,0x0000}}, {0x0000, {0x0000,0x0000,0x0000}}}; static const ConsonantComponents Tamil_consonants[] = { {{0x0B92,0x0BD7,0x0000}, 0x0B94}, {{0x0000,0x0000,0x0000}, 0x0000}}; static void ContextualShape_Tamil(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { int cCount = cChars; WCHAR *input; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } input = HeapAlloc(GetProcessHeap(), 0, (cChars*2) * sizeof(WCHAR)); memcpy(input, pwcChars, cChars * sizeof(WCHAR)); /* Step 1: Decompose Vowels and Compose Consonents */ DecomposeVowels(hdc, input, &cCount, Tamil_vowels); ComposeConsonants(hdc, input, &cCount, Tamil_consonants); TRACE("New composed string %s (%i)\n",debugstr_wn(input,cCount),cCount); /* Step 2: Reorder within Syllables */ Indic_ReorderCharacters( input, cCount, tamil_lex, Reorder_Like_Sinhala); TRACE("reordered string %s\n",debugstr_wn(input,cCount)); GetGlyphIndicesW(hdc, input, cCount, pwOutGlyphs, 0); *pcGlyphs = cCount; HeapFree(GetProcessHeap(),0,input); } static int telugu_lex(WCHAR c) { switch (c) { case 0x0C4D: return lex_Halant; case 0x0C55: return lex_Matra_above; case 0x0C56: return lex_Matra_below; case 0x200C: return lex_ZWNJ; case 0x200D: return lex_ZWJ; default: if (c>=0x0C01 && c<=0x0C03) return lex_Matra_post; else if (c>=0x0C05 && c<=0x0C14) return lex_Vowel; else if (c>=0x0C15 && c<=0x0C39) return lex_Consonant; else if (c>=0x0C3E && c<=0x0C40) return lex_Matra_above; else if (c>=0x0C41 && c<=0x0C44) return lex_Matra_post; else if (c>=0x0C46 && c<=0x0C47) return lex_Matra_above; else if (c>=0x0C4A && c<=0x0C4C) return lex_Matra_above; else if (c>=0x0C58 && c<=0x0C59) return lex_Consonant; else if (c>=0x0C60 && c<=0x0C61) return lex_Vowel; else if (c>=0x0C62 && c<=0x0C63) return lex_Matra_below; else return lex_Generic; } } static const VowelComponents Telugu_vowels[] = { {0x0C48, {0x0C46,0x0C56,0x0000}}, {0x0000, {0x0000,0x0000,0x0000}}}; static void ContextualShape_Telugu(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { int cCount = cChars; WCHAR *input; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } input = HeapAlloc(GetProcessHeap(), 0, (cChars*2) * sizeof(WCHAR)); memcpy(input, pwcChars, cChars * sizeof(WCHAR)); /* Step 1: Decompose Vowels */ DecomposeVowels(hdc, input, &cCount, Telugu_vowels); TRACE("New composed string %s (%i)\n",debugstr_wn(input,cCount),cCount); /* Step 2: Reorder within Syllables */ Indic_ReorderCharacters( input, cCount, telugu_lex, Reorder_Like_Bengali); TRACE("reordered string %s\n",debugstr_wn(input,cCount)); GetGlyphIndicesW(hdc, input, cCount, pwOutGlyphs, 0); *pcGlyphs = cCount; HeapFree(GetProcessHeap(),0,input); } static int kannada_lex(WCHAR c) { switch (c) { case 0x0CB0: return lex_Ra; case 0x0CBC: return lex_Nukta; case 0x0CBE: return lex_Matra_post; case 0x0CBF: return lex_Matra_above; case 0x0CC6: return lex_Matra_above; case 0x0CCC: return lex_Matra_above; case 0x0CCD: return lex_Halant; case 0x0CCE: return lex_Consonant; case 0x200C: return lex_ZWNJ; case 0x200D: return lex_ZWJ; default: if (c>=0x0C82 && c<=0x0C83) return lex_Modifier; else if (c>=0x0C85 && c<=0x0C94) return lex_Vowel; else if (c>=0x0C95 && c<=0x0CB9) return lex_Consonant; else if (c>=0x0CC1 && c<=0x0CC4) return lex_Matra_post; else if (c>=0x0CD5 && c<=0x0CD6) return lex_Modifier; else if (c>=0x0CE0 && c<=0x0CE1) return lex_Vowel; else if (c>=0x0CE2 && c<=0x0CE3) return lex_Matra_below; else return lex_Generic; } } static const VowelComponents Kannada_vowels[] = { {0x0CC0, {0x0CBF,0x0CD5,0x0000}}, {0x0CC7, {0x0CC6,0x0CD5,0x0000}}, {0x0CC8, {0x0CC6,0x0CD6,0x0000}}, {0x0CCA, {0x0CC6,0x0CC2,0x0000}}, {0x0CCB, {0x0CC6,0x0CC2,0x0CD5}}, {0x0000, {0x0000,0x0000,0x0000}}}; static void ContextualShape_Kannada(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { int cCount = cChars; WCHAR *input; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } input = HeapAlloc(GetProcessHeap(), 0, (cChars*3) * sizeof(WCHAR)); memcpy(input, pwcChars, cChars * sizeof(WCHAR)); /* Step 1: Decompose Vowels */ DecomposeVowels(hdc, input, &cCount, Kannada_vowels); TRACE("New composed string %s (%i)\n",debugstr_wn(input,cCount),cCount); /* Step 2: Reorder within Syllables */ Indic_ReorderCharacters( input, cCount, kannada_lex, Reorder_Like_Kannada); TRACE("reordered string %s\n",debugstr_wn(input,cCount)); GetGlyphIndicesW(hdc, input, cCount, pwOutGlyphs, 0); *pcGlyphs = cCount; HeapFree(GetProcessHeap(),0,input); } static int malayalam_lex(WCHAR c) { switch (c) { case 0x0D35: return lex_Consonant; case 0x0D4D: return lex_Halant; case 0x0D57: return lex_Matra_post; case 0x200C: return lex_ZWNJ; case 0x200D: return lex_ZWJ; default: if (c>=0x0D02 && c<=0x0D03) return lex_Modifier; else if (c>=0x0D05 && c<=0x0D14) return lex_Vowel; else if (c>=0x0D15 && c<=0x0D39) return lex_Consonant; else if (c>=0x0D3E && c<=0x0D44) return lex_Matra_post; else if (c>=0x0D46 && c<=0x0D48) return lex_Matra_pre; else if (c>=0x0D60 && c<=0x0D61) return lex_Vowel; else if (c>=0x0D62 && c<=0x0D63) return lex_Matra_below; else return lex_Generic; } } static const VowelComponents Malayalam_vowels[] = { {0x0D4A, {0x0D46,0x0D3E,0x0000}}, {0x0D4B, {0x0D47,0x0D3E,0x0000}}, {0x0D4C, {0x0D46,0x0D57,0x0000}}, {0x0000, {0x0000,0x0000,0x0000}}}; static void ContextualShape_Malayalam(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { int cCount = cChars; WCHAR *input; if (*pcGlyphs != cChars) { ERR("Number of Glyphs and Chars need to match at the beginning\n"); return; } input = HeapAlloc(GetProcessHeap(), 0, (cChars*2) * sizeof(WCHAR)); memcpy(input, pwcChars, cChars * sizeof(WCHAR)); /* Step 1: Decompose Vowels */ DecomposeVowels(hdc, input, &cCount, Malayalam_vowels); TRACE("New composed string %s (%i)\n",debugstr_wn(input,cCount),cCount); /* Step 2: Reorder within Syllables */ Indic_ReorderCharacters( input, cCount, malayalam_lex, Reorder_Like_Malayalam); TRACE("reordered string %s\n",debugstr_wn(input,cCount)); GetGlyphIndicesW(hdc, input, cCount, pwOutGlyphs, 0); *pcGlyphs = cCount; HeapFree(GetProcessHeap(),0,input); } static void ShapeCharGlyphProp_Default( 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) { int i,k; for (i = 0; i < cGlyphs; i++) { int char_index[20]; int char_count = 0; for (k = 0; k < cChars; k++) { if (pwLogClust[k] == i) { char_index[char_count] = k; char_count++; } } if (char_count == 0) { FIXME("No chars in this glyph? Must be an error\n"); continue; } if (char_count ==1 && pwcChars[char_index[0]] == 0x0020) /* space */ { pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_BLANK; pCharProp[char_index[0]].fCanGlyphAlone = 1; } else pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_CHARACTER; } GDEF_UpdateGlyphProps(hdc, psc, pwGlyphs, cGlyphs, pwLogClust, pGlyphProp); UpdateClustersFromGlyphProp(cGlyphs, cChars, pwLogClust, pGlyphProp); } static void ShapeCharGlyphProp_Arabic( 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 ) { int i,k; int initGlyph, finaGlyph; INT dirR, dirL; BYTE *spaces; spaces = HeapAlloc(GetProcessHeap(),0,cGlyphs); memset(spaces,0,cGlyphs); if (!psa->fLogicalOrder && psa->fRTL) { initGlyph = cGlyphs-1; finaGlyph = 0; dirR = 1; dirL = -1; } else { initGlyph = 0; finaGlyph = cGlyphs-1; dirR = -1; dirL = 1; } for (i = 0; i < cGlyphs; i++) { for (k = 0; k < cChars; k++) if (pwLogClust[k] == i) { if (pwcChars[k] == 0x0020) spaces[i] = 1; } } for (i = 0; i < cGlyphs; i++) { int char_index[20]; int char_count = 0; BOOL isInit, isFinal; for (k = 0; k < cChars; k++) { if (pwLogClust[k] == i) { char_index[char_count] = k; char_count++; } } isInit = (i == initGlyph || (i+dirR > 0 && i+dirR < cGlyphs && spaces[i+dirR])); isFinal = (i == finaGlyph || (i+dirL > 0 && i+dirL < cGlyphs && spaces[i+dirL])); if (char_count == 0) { FIXME("No chars in this glyph? Must be an error\n"); continue; } if (char_count == 1) { if (pwcChars[char_index[0]] == 0x0020) /* space */ { pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_BLANK; pCharProp[char_index[0]].fCanGlyphAlone = 1; } else if (pwcChars[char_index[0]] == 0x0640) /* kashida */ pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_KASHIDA; else if (pwcChars[char_index[0]] == 0x0633) /* SEEN */ { if (!isInit && !isFinal) pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_SEEN_M; else if (isInit) pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_SEEN; else pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_NONE; } else if (!isInit) { if (pwcChars[char_index[0]] == 0x0628 ) /* BA */ pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_BA; else if (pwcChars[char_index[0]] == 0x0631 ) /* RA */ pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_RA; else if (pwcChars[char_index[0]] == 0x0647 ) /* HA */ pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_HA; else if ((pwcChars[char_index[0]] == 0x0627 || pwcChars[char_index[0]] == 0x0625 || pwcChars[char_index[0]] == 0x0623 || pwcChars[char_index[0]] == 0x0622) ) /* alef-like */ pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_ALEF; else pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_NONE; } else if (!isInit && !isFinal) pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_NORMAL; else pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_NONE; } else if (char_count == 2) { if ((pwcChars[char_index[0]] == 0x0628 && pwcChars[char_index[1]]== 0x0631) || (pwcChars[char_index[0]] == 0x0631 && pwcChars[char_index[1]]== 0x0628)) /* BA+RA */ pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_BARA; else if (!isInit) pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_NORMAL; else pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_NONE; } else if (!isInit && !isFinal) pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_ARABIC_NORMAL; else pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_NONE; } GDEF_UpdateGlyphProps(hdc, psc, pwGlyphs, cGlyphs, pwLogClust, pGlyphProp); UpdateClustersFromGlyphProp(cGlyphs, cChars, pwLogClust, pGlyphProp); HeapFree(GetProcessHeap(),0,spaces); } static void ShapeCharGlyphProp_Thai( 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 ) { int i,k; int finaGlyph; INT dirL; BYTE *spaces; spaces = HeapAlloc(GetProcessHeap(),0,cGlyphs); memset(spaces,0,cGlyphs); if (!psa->fLogicalOrder && psa->fRTL) { finaGlyph = 0; dirL = -1; } else { finaGlyph = cGlyphs-1; dirL = 1; } for (i = 0; i < cGlyphs; i++) { for (k = 0; k < cChars; k++) if (pwLogClust[k] == i) { if (pwcChars[k] == 0x0020) spaces[i] = 1; } } for (i = 0; i < cGlyphs; i++) { int char_index[20]; int char_count = 0; for (k = 0; k < cChars; k++) { if (pwLogClust[k] == i) { char_index[char_count] = k; char_count++; } } if (char_count == 0) { FIXME("No chars in this glyph? Must be an error\n"); continue; } if (char_count ==1 && pwcChars[char_index[0]] == 0x0020) /* space */ { pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_CHARACTER; pCharProp[char_index[0]].fCanGlyphAlone = 1; } else if (i == finaGlyph) pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_NONE; else pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_CHARACTER; } HeapFree(GetProcessHeap(),0,spaces); GDEF_UpdateGlyphProps(hdc, psc, pwGlyphs, cGlyphs, pwLogClust, pGlyphProp); UpdateClustersFromGlyphProp(cGlyphs, cChars, pwLogClust, pGlyphProp); /* Do not allow justification between marks and their base */ for (i = 0; i < cGlyphs; i++) { if (!pGlyphProp[i].sva.fClusterStart) pGlyphProp[i-dirL].sva.uJustification = SCRIPT_JUSTIFY_NONE; } } static void ShapeCharGlyphProp_None( 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) { int i,k; for (i = 0; i < cGlyphs; i++) { int char_index[20]; int char_count = 0; for (k = 0; k < cChars; k++) { if (pwLogClust[k] == i) { char_index[char_count] = k; char_count++; } } if (char_count == 0) { FIXME("No chars in this glyph? Must be an error\n"); continue; } if (char_count ==1 && pwcChars[char_index[0]] == 0x0020) /* space */ { pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_CHARACTER; pCharProp[char_index[0]].fCanGlyphAlone = 1; } else pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_NONE; } GDEF_UpdateGlyphProps(hdc, psc, pwGlyphs, cGlyphs, pwLogClust, pGlyphProp); UpdateClustersFromGlyphProp(cGlyphs, cChars, pwLogClust, pGlyphProp); } static void ShapeCharGlyphProp_Tibet( 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) { int i,k; for (i = 0; i < cGlyphs; i++) { int char_index[20]; int char_count = 0; for (k = 0; k < cChars; k++) { if (pwLogClust[k] == i) { char_index[char_count] = k; char_count++; } } if (char_count == 0) { FIXME("No chars in this glyph? Must be an error\n"); continue; } if (char_count ==1 && pwcChars[char_index[0]] == 0x0020) /* space */ { pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_BLANK; pCharProp[char_index[0]].fCanGlyphAlone = 1; } else pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_NONE; } GDEF_UpdateGlyphProps(hdc, psc, pwGlyphs, cGlyphs, pwLogClust, pGlyphProp); UpdateClustersFromGlyphProp(cGlyphs, cChars, pwLogClust, pGlyphProp); /* Tibeten script does not set sva.fDiacritic or sva.fZeroWidth */ for (i = 0; i < cGlyphs; i++) { if (!pGlyphProp[i].sva.fClusterStart) { pGlyphProp[i].sva.fDiacritic = 0; pGlyphProp[i].sva.fZeroWidth = 0; } } } static void ShapeCharGlyphProp_BaseIndic( 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, lexical_function lexical) { int i,k; for (i = 0; i < cGlyphs; i++) { int char_index[20]; int char_count = 0; for (k = 0; k < cChars; k++) { if (pwLogClust[k] == i) { char_index[char_count] = k; char_count++; } } if (char_count == 0) { FIXME("No chars in this glyph? Must be an error\n"); continue; } if (char_count ==1 && pwcChars[char_index[0]] == 0x0020) /* space */ { pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_BLANK; pCharProp[char_index[0]].fCanGlyphAlone = 1; } else pGlyphProp[i].sva.uJustification = SCRIPT_JUSTIFY_NONE; pGlyphProp[i].sva.fClusterStart = 0; for (k = 0; k < char_count && !pGlyphProp[i].sva.fClusterStart; k++) switch (lexical(pwcChars[char_index[k]])) { case lex_Matra_pre: case lex_Matra_post: case lex_Matra_above: case lex_Matra_below: case lex_Modifier: break; default: pGlyphProp[i].sva.fClusterStart = 1; break; } } UpdateClustersFromGlyphProp(cGlyphs, cChars, pwLogClust, pGlyphProp); } static void ShapeCharGlyphProp_Devanagari( 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 ) { ShapeCharGlyphProp_BaseIndic(hdc, psc, psa, pwcChars, cChars, pwGlyphs, cGlyphs, pwLogClust, pCharProp, pGlyphProp, devanagari_lex); } static void ShapeCharGlyphProp_Bengali( 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 ) { ShapeCharGlyphProp_BaseIndic(hdc, psc, psa, pwcChars, cChars, pwGlyphs, cGlyphs, pwLogClust, pCharProp, pGlyphProp, bengali_lex); } static void ShapeCharGlyphProp_Gurmukhi( 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 ) { ShapeCharGlyphProp_BaseIndic(hdc, psc, psa, pwcChars, cChars, pwGlyphs, cGlyphs, pwLogClust, pCharProp, pGlyphProp, gurmukhi_lex); } static void ShapeCharGlyphProp_Gujarati( 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 ) { ShapeCharGlyphProp_BaseIndic(hdc, psc, psa, pwcChars, cChars, pwGlyphs, cGlyphs, pwLogClust, pCharProp, pGlyphProp, gujarati_lex); } static void ShapeCharGlyphProp_Oriya( 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 ) { ShapeCharGlyphProp_BaseIndic(hdc, psc, psa, pwcChars, cChars, pwGlyphs, cGlyphs, pwLogClust, pCharProp, pGlyphProp, oriya_lex); } static void ShapeCharGlyphProp_Tamil( 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 ) { ShapeCharGlyphProp_BaseIndic(hdc, psc, psa, pwcChars, cChars, pwGlyphs, cGlyphs, pwLogClust, pCharProp, pGlyphProp, tamil_lex); } static void ShapeCharGlyphProp_Telugu( 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 ) { ShapeCharGlyphProp_BaseIndic(hdc, psc, psa, pwcChars, cChars, pwGlyphs, cGlyphs, pwLogClust, pCharProp, pGlyphProp, telugu_lex); } static void ShapeCharGlyphProp_Kannada( 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 ) { ShapeCharGlyphProp_BaseIndic(hdc, psc, psa, pwcChars, cChars, pwGlyphs, cGlyphs, pwLogClust, pCharProp, pGlyphProp, kannada_lex); } static void ShapeCharGlyphProp_Malayalam( 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 ) { ShapeCharGlyphProp_BaseIndic(hdc, psc, psa, pwcChars, cChars, pwGlyphs, cGlyphs, pwLogClust, pCharProp, pGlyphProp, malayalam_lex); } 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) { if (ShapingData[psa->eScript].charGlyphPropProc) ShapingData[psa->eScript].charGlyphPropProc(hdc, psc, psa, pwcChars, cChars, pwGlyphs, cGlyphs, pwLogClust, pCharProp, pGlyphProp); else ShapeCharGlyphProp_Default(hdc, psc, psa, pwcChars, cChars, pwGlyphs, cGlyphs, pwLogClust, pCharProp, pGlyphProp); } void SHAPE_ContextualShaping(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwcChars, INT cChars, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, WORD *pwLogClust) { if (ShapingData[psa->eScript].contextProc) ShapingData[psa->eScript].contextProc(hdc, psc, psa, pwcChars, cChars, pwOutGlyphs, pcGlyphs, cMaxGlyphs, pwLogClust); } static void SHAPE_ApplyOpenTypeFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, INT cChars, const TEXTRANGE_PROPERTIES *rpRangeProperties, WORD *pwLogClust) { int i; INT dirL; if (!rpRangeProperties) return; if (!psc->GSUB_Table) psc->GSUB_Table = load_gsub_table(hdc); if (!psc->GSUB_Table) return; if (!psa->fLogicalOrder && psa->fRTL) dirL = -1; else dirL = 1; for (i = 0; i < rpRangeProperties->cotfRecords; i++) { if (rpRangeProperties->potfRecords[i].lParameter > 0) apply_GSUB_feature(hdc, psa, psc, pwOutGlyphs, dirL, pcGlyphs, cChars, (const char*)&rpRangeProperties->potfRecords[i].tagFeature, pwLogClust); } } void SHAPE_ApplyDefaultOpentypeFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WORD* pwOutGlyphs, INT* pcGlyphs, INT cMaxGlyphs, INT cChars, WORD *pwLogClust) { const TEXTRANGE_PROPERTIES *rpRangeProperties; rpRangeProperties = &ShapingData[psa->eScript].defaultTextRange; SHAPE_ApplyOpenTypeFeatures(hdc, psc, psa, pwOutGlyphs, pcGlyphs, cMaxGlyphs, cChars, rpRangeProperties, pwLogClust); } HRESULT SHAPE_CheckFontForRequiredFeatures(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa) { const GSUB_Feature *feature; int i; if (!ShapingData[psa->eScript].requiredFeatures) return S_OK; if (!psc->GSUB_Table) psc->GSUB_Table = load_gsub_table(hdc); /* we need to have at least one of the required features */ i = 0; while (ShapingData[psa->eScript].requiredFeatures[i]) { feature = load_GSUB_feature(hdc, psa, psc, ShapingData[psa->eScript].requiredFeatures[i]); if (feature) return S_OK; i++; } return USP_E_SCRIPT_NOT_IN_FONT; }