/* * Opentype font interfaces for the Uniscribe Script Processor (usp10.dll) * * Copyright 2012 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 #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); #ifdef WORDS_BIGENDIAN #define GET_BE_WORD(x) (x) #define GET_BE_DWORD(x) (x) #else #define GET_BE_WORD(x) RtlUshortByteSwap(x) #define GET_BE_DWORD(x) RtlUlongByteSwap(x) #endif #define round(x) (((x) < 0) ? (int)((x) - 0.5) : (int)((x) + 0.5)) /* These are all structures needed for the cmap format 12 table */ #define CMAP_TAG MS_MAKE_TAG('c', 'm', 'a', 'p') typedef struct { WORD platformID; WORD encodingID; DWORD offset; } CMAP_EncodingRecord; typedef struct { WORD version; WORD numTables; CMAP_EncodingRecord tables[1]; } CMAP_Header; typedef struct { DWORD startCharCode; DWORD endCharCode; DWORD startGlyphID; } CMAP_SegmentedCoverage_group; typedef struct { WORD format; WORD reserved; DWORD length; DWORD language; DWORD nGroups; CMAP_SegmentedCoverage_group groups[1]; } CMAP_SegmentedCoverage; /* These are all structures needed for the GDEF table */ 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]; } OT_ClassDefFormat1; typedef struct { WORD Start; WORD End; WORD Class; } OT_ClassRangeRecord; typedef struct { WORD ClassFormat; WORD ClassRangeCount; OT_ClassRangeRecord ClassRangeRecord[1]; } OT_ClassDefFormat2; /* These are all structures needed for the GSUB table */ typedef struct { DWORD version; WORD ScriptList; WORD FeatureList; WORD LookupList; } GSUB_Header; typedef struct { CHAR ScriptTag[4]; WORD Script; } OT_ScriptRecord; typedef struct { WORD ScriptCount; OT_ScriptRecord ScriptRecord[1]; } OT_ScriptList; typedef struct { CHAR LangSysTag[4]; WORD LangSys; } OT_LangSysRecord; typedef struct { WORD DefaultLangSys; WORD LangSysCount; OT_LangSysRecord LangSysRecord[1]; } OT_Script; typedef struct { WORD LookupOrder; /* Reserved */ WORD ReqFeatureIndex; WORD FeatureCount; WORD FeatureIndex[1]; } OT_LangSys; typedef struct { CHAR FeatureTag[4]; WORD Feature; } OT_FeatureRecord; typedef struct { WORD FeatureCount; OT_FeatureRecord FeatureRecord[1]; } OT_FeatureList; typedef struct { WORD FeatureParams; /* Reserved */ WORD LookupCount; WORD LookupListIndex[1]; } OT_Feature; typedef struct { WORD LookupCount; WORD Lookup[1]; } OT_LookupList; typedef struct { WORD LookupType; WORD LookupFlag; WORD SubTableCount; WORD SubTable[1]; } OT_LookupTable; typedef struct { WORD CoverageFormat; WORD GlyphCount; WORD GlyphArray[1]; } OT_CoverageFormat1; typedef struct { WORD Start; WORD End; WORD StartCoverageIndex; } OT_RangeRecord; typedef struct { WORD CoverageFormat; WORD RangeCount; OT_RangeRecord RangeRecord[1]; } OT_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 SequenceCount; WORD Sequence[1]; }GSUB_MultipleSubstFormat1; typedef struct { WORD GlyphCount; WORD Substitute[1]; }GSUB_Sequence; 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; typedef struct { WORD SubstFormat; WORD ExtensionLookupType; DWORD ExtensionOffset; } GSUB_ExtensionPosFormat1; /* These are all structures needed for the GPOS table */ typedef struct { DWORD version; WORD ScriptList; WORD FeatureList; WORD LookupList; } GPOS_Header; typedef struct { WORD StartSize; WORD EndSize; WORD DeltaFormat; WORD DeltaValue[1]; } OT_DeviceTable; typedef struct { WORD AnchorFormat; WORD XCoordinate; WORD YCoordinate; } GPOS_AnchorFormat1; typedef struct { WORD AnchorFormat; WORD XCoordinate; WORD YCoordinate; WORD AnchorPoint; } GPOS_AnchorFormat2; typedef struct { WORD AnchorFormat; WORD XCoordinate; WORD YCoordinate; WORD XDeviceTable; WORD YDeviceTable; } GPOS_AnchorFormat3; typedef struct { WORD XPlacement; WORD YPlacement; WORD XAdvance; WORD YAdvance; WORD XPlaDevice; WORD YPlaDevice; WORD XAdvDevice; WORD YAdvDevice; } GPOS_ValueRecord; typedef struct { WORD PosFormat; WORD Coverage; WORD ValueFormat; WORD Value[1]; } GPOS_SinglePosFormat1; typedef struct { WORD PosFormat; WORD Coverage; WORD ValueFormat; WORD ValueCount; WORD Value[1]; } GPOS_SinglePosFormat2; typedef struct { WORD PosFormat; WORD Coverage; WORD ValueFormat1; WORD ValueFormat2; WORD PairSetCount; WORD PairSetOffset[1]; } GPOS_PairPosFormat1; typedef struct { WORD PosFormat; WORD Coverage; WORD ValueFormat1; WORD ValueFormat2; WORD ClassDef1; WORD ClassDef2; WORD Class1Count; WORD Class2Count; WORD Class1Record[1]; } GPOS_PairPosFormat2; typedef struct { WORD SecondGlyph; WORD Value1[1]; WORD Value2[1]; } GPOS_PairValueRecord; typedef struct { WORD PairValueCount; GPOS_PairValueRecord PairValueRecord[1]; } GPOS_PairSet; typedef struct { WORD EntryAnchor; WORD ExitAnchor; } GPOS_EntryExitRecord; typedef struct { WORD PosFormat; WORD Coverage; WORD EntryExitCount; GPOS_EntryExitRecord EntryExitRecord[1]; } GPOS_CursivePosFormat1; typedef struct { WORD PosFormat; WORD MarkCoverage; WORD BaseCoverage; WORD ClassCount; WORD MarkArray; WORD BaseArray; } GPOS_MarkBasePosFormat1; typedef struct { WORD BaseAnchor[1]; } GPOS_BaseRecord; typedef struct { WORD BaseCount; GPOS_BaseRecord BaseRecord[1]; } GPOS_BaseArray; typedef struct { WORD Class; WORD MarkAnchor; } GPOS_MarkRecord; typedef struct { WORD MarkCount; GPOS_MarkRecord MarkRecord[1]; } GPOS_MarkArray; typedef struct { WORD PosFormat; WORD MarkCoverage; WORD LigatureCoverage; WORD ClassCount; WORD MarkArray; WORD LigatureArray; } GPOS_MarkLigPosFormat1; typedef struct { WORD LigatureCount; WORD LigatureAttach[1]; } GPOS_LigatureArray; typedef struct { WORD LigatureAnchor[1]; } GPOS_ComponentRecord; typedef struct { WORD ComponentCount; GPOS_ComponentRecord ComponentRecord[1]; } GPOS_LigatureAttach; typedef struct { WORD PosFormat; WORD Mark1Coverage; WORD Mark2Coverage; WORD ClassCount; WORD Mark1Array; WORD Mark2Array; } GPOS_MarkMarkPosFormat1; typedef struct { WORD Mark2Anchor[1]; } GPOS_Mark2Record; typedef struct { WORD Mark2Count; GPOS_Mark2Record Mark2Record[1]; } GPOS_Mark2Array; typedef struct { WORD SequenceIndex; WORD LookupListIndex; } GPOS_PosLookupRecord; typedef struct { WORD PosFormat; WORD BacktrackGlyphCount; WORD Coverage[1]; } GPOS_ChainContextPosFormat3_1; typedef struct { WORD InputGlyphCount; WORD Coverage[1]; } GPOS_ChainContextPosFormat3_2; typedef struct { WORD LookaheadGlyphCount; WORD Coverage[1]; } GPOS_ChainContextPosFormat3_3; typedef struct { WORD PosCount; GPOS_PosLookupRecord PosLookupRecord[1]; } GPOS_ChainContextPosFormat3_4; typedef struct { WORD PosFormat; WORD ExtensionLookupType; DWORD ExtensionOffset; } GPOS_ExtensionPosFormat1; /********** * CMAP **********/ static VOID *load_CMAP_format12_table(HDC hdc, ScriptCache *psc) { CMAP_Header *CMAP_Table = NULL; int length; int i; if (!psc->CMAP_Table) { length = GetFontData(hdc, CMAP_TAG , 0, NULL, 0); if (length != GDI_ERROR) { psc->CMAP_Table = HeapAlloc(GetProcessHeap(),0,length); GetFontData(hdc, CMAP_TAG , 0, psc->CMAP_Table, length); TRACE("Loaded cmap table of %i bytes\n",length); } else return NULL; } CMAP_Table = psc->CMAP_Table; for (i = 0; i < GET_BE_WORD(CMAP_Table->numTables); i++) { if ( (GET_BE_WORD(CMAP_Table->tables[i].platformID) == 3) && (GET_BE_WORD(CMAP_Table->tables[i].encodingID) == 10) ) { CMAP_SegmentedCoverage *format = (CMAP_SegmentedCoverage*)(((BYTE*)CMAP_Table) + GET_BE_DWORD(CMAP_Table->tables[i].offset)); if (GET_BE_WORD(format->format) == 12) return format; } } return NULL; } static int compare_group(const void *a, const void* b) { const DWORD *chr = a; const CMAP_SegmentedCoverage_group *group = b; if (*chr < GET_BE_DWORD(group->startCharCode)) return -1; if (*chr > GET_BE_DWORD(group->endCharCode)) return 1; return 0; } DWORD OpenType_CMAP_GetGlyphIndex(HDC hdc, ScriptCache *psc, DWORD utf32c, LPWORD pgi, DWORD flags) { /* BMP: use gdi32 for ease */ if (utf32c < 0x10000) { WCHAR ch = utf32c; return GetGlyphIndicesW(hdc,&ch, 1, pgi, flags); } if (!psc->CMAP_format12_Table) psc->CMAP_format12_Table = load_CMAP_format12_table(hdc, psc); if (flags & GGI_MARK_NONEXISTING_GLYPHS) *pgi = 0xffff; else *pgi = 0; if (psc->CMAP_format12_Table) { CMAP_SegmentedCoverage *format = NULL; CMAP_SegmentedCoverage_group *group = NULL; format = (CMAP_SegmentedCoverage *)psc->CMAP_format12_Table; group = bsearch(&utf32c, format->groups, GET_BE_DWORD(format->nGroups), sizeof(CMAP_SegmentedCoverage_group), compare_group); if (group) { DWORD offset = utf32c - GET_BE_DWORD(group->startCharCode); *pgi = GET_BE_DWORD(group->startGlyphID) + offset; return 0; } } return 0; } /********** * GDEF **********/ static WORD OT_get_glyph_class(const void *table, WORD glyph) { WORD class = 0; const OT_ClassDefFormat1 *cf1 = table; if (!table) return 0; 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 OT_ClassDefFormat2 *cf2 = table; 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; } void OpenType_GDEF_UpdateGlyphProps(ScriptCache *psc, const WORD *pwGlyphs, const WORD cGlyphs, WORD* pwLogClust, const WORD cChars, SCRIPT_GLYPHPROP *pGlyphProp) { int i; void *glyph_class_table = NULL; if (psc->GDEF_Table) { const GDEF_Header *header = psc->GDEF_Table; WORD offset = GET_BE_WORD( header->GlyphClassDef ); if (offset) glyph_class_table = (BYTE *)psc->GDEF_Table + offset; } for (i = 0; i < cGlyphs; i++) { WORD class; int char_count = 0; int k; k = USP10_FindGlyphInLogClust(pwLogClust, cChars, i); if (k >= 0) { for (; k < cChars && pwLogClust[k] == i; k++) char_count++; } class = OT_get_glyph_class( glyph_class_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; } if (char_count == 0) pGlyphProp[i].sva.fClusterStart = 0; } } /********** * GSUB **********/ static INT GSUB_apply_lookup(const OT_LookupList* lookup, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count); static INT GSUB_is_glyph_covered(LPCVOID table , UINT glyph) { const OT_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 OT_CoverageFormat2* cf2; int i; int count; cf2 = (const OT_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 BYTE *GSUB_get_subtable(const OT_LookupTable *look, int index) { int offset = GET_BE_WORD(look->SubTable[index]); if (GET_BE_WORD(look->LookupType) == 7) { const GSUB_ExtensionPosFormat1 *ext = (const GSUB_ExtensionPosFormat1 *)((const BYTE *)look + offset); if (GET_BE_WORD(ext->SubstFormat) == 1) { offset += GET_BE_DWORD(ext->ExtensionOffset); } else { FIXME("Unhandled Extension Substitution Format %i\n",GET_BE_WORD(ext->SubstFormat)); } } return (const BYTE *)look + offset; } static INT GSUB_apply_SingleSubst(const OT_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++) { const GSUB_SingleSubstFormat1 *ssf1 = (const GSUB_SingleSubstFormat1*)GSUB_get_subtable(look, j); 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 + write_dir; } } 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 + write_dir; } } } return GSUB_E_NOGLYPH; } static INT GSUB_apply_MultipleSubst(const OT_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) { int j; TRACE("Multiple Substitution Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { int offset, index; const GSUB_MultipleSubstFormat1 *msf1; msf1 = (const GSUB_MultipleSubstFormat1*)GSUB_get_subtable(look, j); offset = GET_BE_WORD(msf1->Coverage); index = GSUB_is_glyph_covered((const BYTE*)msf1+offset, glyphs[glyph_index]); if (index != -1) { const GSUB_Sequence *seq; int sub_count; int j; offset = GET_BE_WORD(msf1->Sequence[index]); seq = (const GSUB_Sequence*)((const BYTE*)msf1+offset); sub_count = GET_BE_WORD(seq->GlyphCount); TRACE(" Glyph 0x%x (+%i)->",glyphs[glyph_index],(sub_count-1)); for (j = (*glyph_count)+(sub_count-1); j > glyph_index; j--) glyphs[j] =glyphs[j-(sub_count-1)]; for (j = 0; j < sub_count; j++) if (write_dir < 0) glyphs[glyph_index + (sub_count-1) - j] = GET_BE_WORD(seq->Substitute[j]); else glyphs[glyph_index + j] = GET_BE_WORD(seq->Substitute[j]); *glyph_count = *glyph_count + (sub_count - 1); if (TRACE_ON(uniscribe)) { for (j = 0; j < sub_count; j++) TRACE(" 0x%x",glyphs[glyph_index+j]); TRACE("\n"); } return glyph_index + (sub_count * write_dir); } } return GSUB_E_NOGLYPH; } static INT GSUB_apply_AlternateSubst(const OT_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; asf1 = (const GSUB_AlternateSubstFormat1*)GSUB_get_subtable(look, j); 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 + write_dir; } } return GSUB_E_NOGLYPH; } static INT GSUB_apply_LigatureSubst(const OT_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; lsf1 = (const GSUB_LigatureSubstFormat1*)GSUB_get_subtable(look, j); 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 + write_dir; } } } } return GSUB_E_NOGLYPH; } static INT GSUB_apply_ChainContextSubst(const OT_LookupList* lookup, const OT_LookupTable *look, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) { int j; TRACE("Chaining Contextual Substitution Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { const GSUB_ChainContextSubstFormat1 *ccsf1; int offset; int dirLookahead = write_dir; int dirBacktrack = -1 * write_dir; ccsf1 = (const GSUB_ChainContextSubstFormat1*)GSUB_get_subtable(look, j); if (GET_BE_WORD(ccsf1->SubstFormat) == 1) { static int once; if (!once++) FIXME(" TODO: subtype 1 (Simple context glyph substitution)\n"); continue; } else if (GET_BE_WORD(ccsf1->SubstFormat) == 2) { static int once; if (!once++) 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 *)((BYTE *)ccsf1 + FIELD_OFFSET(GSUB_ChainContextSubstFormat3_1, Coverage[GET_BE_WORD(ccsf3_1->BacktrackGlyphCount)])); 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 *)((BYTE *)ccsf3_2 + FIELD_OFFSET(GSUB_ChainContextSubstFormat3_2, Coverage[GET_BE_WORD(ccsf3_2->InputGlyphCount)])); 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 *)((BYTE *)ccsf3_3 + FIELD_OFFSET(GSUB_ChainContextSubstFormat3_3, Coverage[GET_BE_WORD(ccsf3_3->LookaheadGlyphCount)])); if (GET_BE_WORD(ccsf3_4->SubstCount)) { 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; } else return GSUB_E_NOGLYPH; } } return -1; } static INT GSUB_apply_lookup(const OT_LookupList* lookup, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) { int offset; int type; const OT_LookupTable *look; offset = GET_BE_WORD(lookup->Lookup[lookup_index]); look = (const OT_LookupTable*)((const BYTE*)lookup + offset); type = GET_BE_WORD(look->LookupType); TRACE("type %i, flag %x, subtables %i\n",type,GET_BE_WORD(look->LookupFlag),GET_BE_WORD(look->SubTableCount)); if (type == 7) { if (GET_BE_WORD(look->SubTableCount)) { const GSUB_ExtensionPosFormat1 *ext = (const GSUB_ExtensionPosFormat1 *)((const BYTE *)look + GET_BE_WORD(look->SubTable[0])); if (GET_BE_WORD(ext->SubstFormat) == 1) { type = GET_BE_WORD(ext->ExtensionLookupType); TRACE("extension type %i\n",type); } else { FIXME("Unhandled Extension Substitution Format %i\n",GET_BE_WORD(ext->SubstFormat)); } } else { WARN("lookup type is Extension Substitution but no extension subtable exists\n"); } } switch(type) { case 1: return GSUB_apply_SingleSubst(look, glyphs, glyph_index, write_dir, glyph_count); case 2: return GSUB_apply_MultipleSubst(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); case 7: FIXME("Extension Substitution types not valid here\n"); break; default: FIXME("We do not handle SubType %i\n",type); } return GSUB_E_NOGLYPH; } INT OpenType_apply_GSUB_lookup(LPCVOID table, INT lookup_index, WORD *glyphs, INT glyph_index, INT write_dir, INT *glyph_count) { const GSUB_Header *header = (const GSUB_Header *)table; const OT_LookupList *lookup = (const OT_LookupList*)((const BYTE*)header + GET_BE_WORD(header->LookupList)); return GSUB_apply_lookup(lookup, lookup_index, glyphs, glyph_index, write_dir, glyph_count); } /********** * GPOS **********/ static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOGFONTW lplogfont, const SCRIPT_ANALYSIS *analysis, INT* piAdvance, const OT_LookupList* lookup, INT lookup_index, const WORD *glyphs, INT glyph_index, INT glyph_count, GOFFSET *pGoffset); static INT GPOS_get_device_table_value(const OT_DeviceTable *DeviceTable, WORD ppem) { static const WORD mask[3] = {3,0xf,0xff}; if (DeviceTable && ppem >= GET_BE_WORD(DeviceTable->StartSize) && ppem <= GET_BE_WORD(DeviceTable->EndSize)) { int format = GET_BE_WORD(DeviceTable->DeltaFormat); int index = ppem - GET_BE_WORD(DeviceTable->StartSize); int value; TRACE("device table, format %i, index %i\n",format, index); index = index << format; value = (DeviceTable->DeltaValue[index/sizeof(WORD)] << (index%sizeof(WORD)))&mask[format-1]; TRACE("offset %i, value %i\n",index, value); if (value > mask[format-1]/2) value = -1 * ((mask[format-1]+1) - value); return value; } return 0; } static VOID GPOS_get_anchor_values(LPCVOID table, LPPOINT pt, WORD ppem) { const GPOS_AnchorFormat1* anchor1 = (const GPOS_AnchorFormat1*)table; switch (GET_BE_WORD(anchor1->AnchorFormat)) { case 1: { TRACE("Anchor Format 1\n"); pt->x = (short)GET_BE_WORD(anchor1->XCoordinate); pt->y = (short)GET_BE_WORD(anchor1->YCoordinate); break; } case 2: { const GPOS_AnchorFormat2* anchor2 = (const GPOS_AnchorFormat2*)table; TRACE("Anchor Format 2\n"); pt->x = (short)GET_BE_WORD(anchor2->XCoordinate); pt->y = (short)GET_BE_WORD(anchor2->YCoordinate); break; } case 3: { int offset; const GPOS_AnchorFormat3* anchor3 = (const GPOS_AnchorFormat3*)table; TRACE("Anchor Format 3\n"); pt->x = (short)GET_BE_WORD(anchor3->XCoordinate); pt->y = (short)GET_BE_WORD(anchor3->YCoordinate); offset = GET_BE_WORD(anchor3->XDeviceTable); TRACE("ppem %i\n",ppem); if (offset) { const OT_DeviceTable* DeviceTableX = NULL; DeviceTableX = (const OT_DeviceTable*)((const BYTE*)anchor3 + offset); pt->x += GPOS_get_device_table_value(DeviceTableX, ppem); } offset = GET_BE_WORD(anchor3->YDeviceTable); if (offset) { const OT_DeviceTable* DeviceTableY = NULL; DeviceTableY = (const OT_DeviceTable*)((const BYTE*)anchor3 + offset); pt->y += GPOS_get_device_table_value(DeviceTableY, ppem); } break; } default: ERR("Unknown Anchor Format %i\n",GET_BE_WORD(anchor1->AnchorFormat)); pt->x = 0; pt->y = 0; } } static void GPOS_convert_design_units_to_device(LPOUTLINETEXTMETRICW lpotm, LPLOGFONTW lplogfont, int desX, int desY, double *devX, double *devY) { int emHeight = lpotm->otmTextMetrics.tmAscent + lpotm->otmTextMetrics.tmDescent - lpotm->otmTextMetrics.tmInternalLeading; TRACE("emHeight %i lfWidth %i\n",emHeight, lplogfont->lfWidth); *devX = (desX * emHeight) / (double)lpotm->otmEMSquare; *devY = (desY * emHeight) / (double)lpotm->otmEMSquare; if (lplogfont->lfWidth) FIXME("Font with lfWidth set not handled properly\n"); } static INT GPOS_get_value_record(WORD ValueFormat, const WORD data[], GPOS_ValueRecord *record) { INT offset = 0; if (ValueFormat & 0x0001) { if (data) record->XPlacement = GET_BE_WORD(data[offset]); offset++; } if (ValueFormat & 0x0002) { if (data) record->YPlacement = GET_BE_WORD(data[offset]); offset++; } if (ValueFormat & 0x0004) { if (data) record->XAdvance = GET_BE_WORD(data[offset]); offset++; } if (ValueFormat & 0x0008) { if (data) record->YAdvance = GET_BE_WORD(data[offset]); offset++; } if (ValueFormat & 0x0010) { if (data) record->XPlaDevice = GET_BE_WORD(data[offset]); offset++; } if (ValueFormat & 0x0020) { if (data) record->YPlaDevice = GET_BE_WORD(data[offset]); offset++; } if (ValueFormat & 0x0040) { if (data) record->XAdvDevice = GET_BE_WORD(data[offset]); offset++; } if (ValueFormat & 0x0080) { if (data) record->YAdvDevice = GET_BE_WORD(data[offset]); offset++; } return offset; } static VOID GPOS_get_value_record_offsets(const BYTE* head, GPOS_ValueRecord *ValueRecord, WORD ValueFormat, INT ppem, LPPOINT ptPlacement, LPPOINT ptAdvance) { if (ValueFormat & 0x0001) ptPlacement->x += (short)ValueRecord->XPlacement; if (ValueFormat & 0x0002) ptPlacement->y += (short)ValueRecord->YPlacement; if (ValueFormat & 0x0004) ptAdvance->x += (short)ValueRecord->XAdvance; if (ValueFormat & 0x0008) ptAdvance->y += (short)ValueRecord->YAdvance; if (ValueFormat & 0x0010) ptPlacement->x += GPOS_get_device_table_value((const OT_DeviceTable*)(head + ValueRecord->XPlaDevice), ppem); if (ValueFormat & 0x0020) ptPlacement->y += GPOS_get_device_table_value((const OT_DeviceTable*)(head + ValueRecord->YPlaDevice), ppem); if (ValueFormat & 0x0040) ptAdvance->x += GPOS_get_device_table_value((const OT_DeviceTable*)(head + ValueRecord->XAdvDevice), ppem); if (ValueFormat & 0x0080) ptAdvance->y += GPOS_get_device_table_value((const OT_DeviceTable*)(head + ValueRecord->YAdvDevice), ppem); if (ValueFormat & 0xFF00) FIXME("Unhandled Value Format %x\n",ValueFormat&0xFF00); } static const BYTE *GPOS_get_subtable(const OT_LookupTable *look, int index) { int offset = GET_BE_WORD(look->SubTable[index]); if (GET_BE_WORD(look->LookupType) == 9) { const GPOS_ExtensionPosFormat1 *ext = (const GPOS_ExtensionPosFormat1 *)((const BYTE *)look + offset); if (GET_BE_WORD(ext->PosFormat) == 1) { offset += GET_BE_DWORD(ext->ExtensionOffset); } else { FIXME("Unhandled Extension Positioning Format %i\n",GET_BE_WORD(ext->PosFormat)); } } return (const BYTE *)look + offset; } static VOID GPOS_apply_SingleAdjustment(const OT_LookupTable *look, const SCRIPT_ANALYSIS *analysis, const WORD *glyphs, INT glyph_index, INT glyph_count, INT ppem, LPPOINT ptAdjust, LPPOINT ptAdvance) { int j; TRACE("Single Adjustment Positioning Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { const GPOS_SinglePosFormat1 *spf1 = (const GPOS_SinglePosFormat1*)GPOS_get_subtable(look, j); WORD offset; if (GET_BE_WORD(spf1->PosFormat) == 1) { offset = GET_BE_WORD(spf1->Coverage); if (GSUB_is_glyph_covered((const BYTE*)spf1+offset, glyphs[glyph_index]) != -1) { GPOS_ValueRecord ValueRecord = {0,0,0,0,0,0,0,0}; WORD ValueFormat = GET_BE_WORD(spf1->ValueFormat); GPOS_get_value_record(ValueFormat, spf1->Value, &ValueRecord); GPOS_get_value_record_offsets((const BYTE*)spf1, &ValueRecord, ValueFormat, ppem, ptAdjust, ptAdvance); TRACE("Glyph Adjusted by %i,%i\n",ValueRecord.XPlacement,ValueRecord.YPlacement); } } else if (GET_BE_WORD(spf1->PosFormat) == 2) { int index; const GPOS_SinglePosFormat2 *spf2; spf2 = (const GPOS_SinglePosFormat2*)spf1; offset = GET_BE_WORD(spf2->Coverage); index = GSUB_is_glyph_covered((const BYTE*)spf2+offset, glyphs[glyph_index]); if (index != -1) { int size; GPOS_ValueRecord ValueRecord = {0,0,0,0,0,0,0,0}; WORD ValueFormat = GET_BE_WORD(spf2->ValueFormat); size = GPOS_get_value_record(ValueFormat, spf2->Value, &ValueRecord); if (index > 0) { offset = size * index; GPOS_get_value_record(ValueFormat, &spf2->Value[offset], &ValueRecord); } GPOS_get_value_record_offsets((const BYTE*)spf2, &ValueRecord, ValueFormat, ppem, ptAdjust, ptAdvance); TRACE("Glyph Adjusted by %i,%i\n",ValueRecord.XPlacement,ValueRecord.YPlacement); } } else FIXME("Single Adjustment Positioning: Format %i Unhandled\n",GET_BE_WORD(spf1->PosFormat)); } } static void apply_pair_value( const void *pos_table, WORD val_fmt1, WORD val_fmt2, const WORD *pair, INT ppem, POINT *adjust, POINT *advance ) { GPOS_ValueRecord val_rec1 = {0,0,0,0,0,0,0,0}; GPOS_ValueRecord val_rec2 = {0,0,0,0,0,0,0,0}; INT size; size = GPOS_get_value_record( val_fmt1, pair, &val_rec1 ); GPOS_get_value_record( val_fmt2, pair + size, &val_rec2 ); if (val_fmt1) { GPOS_get_value_record_offsets( pos_table, &val_rec1, val_fmt1, ppem, adjust, advance ); TRACE( "Glyph 1 resulting cumulative offset is %i,%i design units\n", adjust[0].x, adjust[0].y ); TRACE( "Glyph 1 resulting cumulative advance is %i,%i design units\n", advance[0].x, advance[0].y ); } if (val_fmt2) { GPOS_get_value_record_offsets( pos_table, &val_rec2, val_fmt2, ppem, adjust + 1, advance + 1 ); TRACE( "Glyph 2 resulting cumulative offset is %i,%i design units\n", adjust[1].x, adjust[1].y ); TRACE( "Glyph 2 resulting cumulative advance is %i,%i design units\n", advance[1].x, advance[1].y ); } } static INT GPOS_apply_PairAdjustment(const OT_LookupTable *look, const SCRIPT_ANALYSIS *analysis, const WORD *glyphs, INT glyph_index, INT glyph_count, INT ppem, LPPOINT ptAdjust, LPPOINT ptAdvance) { int j; int write_dir = (analysis->fRTL && !analysis->fLogicalOrder) ? -1 : 1; if (glyph_index + write_dir < 0 || glyph_index + write_dir >= glyph_count) return glyph_index + 1; TRACE("Pair Adjustment Positioning Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { const GPOS_PairPosFormat1 *ppf1 = (const GPOS_PairPosFormat1*)GPOS_get_subtable(look, j); WORD offset; if (GET_BE_WORD(ppf1->PosFormat) == 1) { int index; WORD ValueFormat1 = GET_BE_WORD(ppf1->ValueFormat1); WORD ValueFormat2 = GET_BE_WORD(ppf1->ValueFormat2); INT val_fmt1_size = GPOS_get_value_record( ValueFormat1, NULL, NULL ); INT val_fmt2_size = GPOS_get_value_record( ValueFormat2, NULL, NULL ); offset = GET_BE_WORD(ppf1->Coverage); index = GSUB_is_glyph_covered((const BYTE*)ppf1+offset, glyphs[glyph_index]); if (index != -1 && index < GET_BE_WORD(ppf1->PairSetCount)) { int k; int pair_count; const GPOS_PairSet *ps; const GPOS_PairValueRecord *pair_val_rec; offset = GET_BE_WORD(ppf1->PairSetOffset[index]); ps = (const GPOS_PairSet*)((const BYTE*)ppf1+offset); pair_count = GET_BE_WORD(ps->PairValueCount); pair_val_rec = ps->PairValueRecord; for (k = 0; k < pair_count; k++) { WORD second_glyph = GET_BE_WORD(pair_val_rec->SecondGlyph); if (glyphs[glyph_index+write_dir] == second_glyph) { int next = 1; TRACE("Format 1: Found Pair %x,%x\n",glyphs[glyph_index],glyphs[glyph_index+write_dir]); apply_pair_value( ppf1, ValueFormat1, ValueFormat2, pair_val_rec->Value1, ppem, ptAdjust, ptAdvance ); if (ValueFormat2) next++; return glyph_index + next; } pair_val_rec = (const GPOS_PairValueRecord *)(pair_val_rec->Value1 + val_fmt1_size + val_fmt2_size); } } } else if (GET_BE_WORD(ppf1->PosFormat) == 2) { const GPOS_PairPosFormat2 *ppf2 = (const GPOS_PairPosFormat2*)ppf1; int index; WORD ValueFormat1 = GET_BE_WORD( ppf2->ValueFormat1 ); WORD ValueFormat2 = GET_BE_WORD( ppf2->ValueFormat2 ); INT val_fmt1_size = GPOS_get_value_record( ValueFormat1, NULL, NULL ); INT val_fmt2_size = GPOS_get_value_record( ValueFormat2, NULL, NULL ); WORD class1_count = GET_BE_WORD( ppf2->Class1Count ); WORD class2_count = GET_BE_WORD( ppf2->Class2Count ); offset = GET_BE_WORD( ppf2->Coverage ); index = GSUB_is_glyph_covered( (const BYTE*)ppf2 + offset, glyphs[glyph_index] ); if (index != -1) { WORD class1, class2; class1 = OT_get_glyph_class( (const BYTE *)ppf2 + GET_BE_WORD(ppf2->ClassDef1), glyphs[glyph_index] ); class2 = OT_get_glyph_class( (const BYTE *)ppf2 + GET_BE_WORD(ppf2->ClassDef2), glyphs[glyph_index + write_dir] ); if (class1 < class1_count && class2 < class2_count) { const WORD *pair_val = ppf2->Class1Record + (class1 * class2_count + class2) * (val_fmt1_size + val_fmt2_size); int next = 1; TRACE( "Format 2: Found Pair %x,%x\n", glyphs[glyph_index], glyphs[glyph_index + write_dir] ); apply_pair_value( ppf2, ValueFormat1, ValueFormat2, pair_val, ppem, ptAdjust, ptAdvance ); if (ValueFormat2) next++; return glyph_index + next; } } } else FIXME("Pair Adjustment Positioning: Format %i Unhandled\n",GET_BE_WORD(ppf1->PosFormat)); } return glyph_index+1; } static VOID GPOS_apply_CursiveAttachment(const OT_LookupTable *look, const SCRIPT_ANALYSIS *analysis, const WORD *glyphs, INT glyph_index, INT glyph_count, INT ppem, LPPOINT pt) { int j; int write_dir = (analysis->fRTL && !analysis->fLogicalOrder) ? -1 : 1; if (glyph_index + write_dir < 0 || glyph_index + write_dir >= glyph_count) return; TRACE("Cursive Attachment Positioning Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { const GPOS_CursivePosFormat1 *cpf1 = (const GPOS_CursivePosFormat1 *)GPOS_get_subtable(look, j); if (GET_BE_WORD(cpf1->PosFormat) == 1) { int index_exit, index_entry; WORD offset = GET_BE_WORD( cpf1->Coverage ); index_exit = GSUB_is_glyph_covered((const BYTE*)cpf1+offset, glyphs[glyph_index]); if (index_exit != -1 && cpf1->EntryExitRecord[index_exit].ExitAnchor!= 0) { index_entry = GSUB_is_glyph_covered((const BYTE*)cpf1+offset, glyphs[glyph_index+write_dir]); if (index_entry != -1 && cpf1->EntryExitRecord[index_entry].EntryAnchor != 0) { POINT exit_pt, entry_pt; offset = GET_BE_WORD(cpf1->EntryExitRecord[index_exit].ExitAnchor); GPOS_get_anchor_values((const BYTE*)cpf1 + offset, &exit_pt, ppem); offset = GET_BE_WORD(cpf1->EntryExitRecord[index_entry].EntryAnchor); GPOS_get_anchor_values((const BYTE*)cpf1 + offset, &entry_pt, ppem); TRACE("Found linkage %x[%i,%i] %x[%i,%i]\n",glyphs[glyph_index], exit_pt.x,exit_pt.y, glyphs[glyph_index+write_dir], entry_pt.x, entry_pt.y); pt->x = entry_pt.x - exit_pt.x; pt->y = entry_pt.y - exit_pt.y; return; } } } else FIXME("Cursive Attachment Positioning: Format %i Unhandled\n",GET_BE_WORD(cpf1->PosFormat)); } return; } static int GPOS_apply_MarkToBase(ScriptCache *psc, const OT_LookupTable *look, const SCRIPT_ANALYSIS *analysis, const WORD *glyphs, INT glyph_index, INT glyph_count, INT ppem, LPPOINT pt) { int j; int write_dir = (analysis->fRTL && !analysis->fLogicalOrder) ? -1 : 1; void *glyph_class_table = NULL; int rc = -1; if (psc->GDEF_Table) { const GDEF_Header *header = psc->GDEF_Table; WORD offset = GET_BE_WORD( header->GlyphClassDef ); if (offset) glyph_class_table = (BYTE *)psc->GDEF_Table + offset; } TRACE("MarkToBase Attachment Positioning Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { const GPOS_MarkBasePosFormat1 *mbpf1 = (const GPOS_MarkBasePosFormat1 *)GPOS_get_subtable(look, j); if (GET_BE_WORD(mbpf1->PosFormat) == 1) { int offset = GET_BE_WORD(mbpf1->MarkCoverage); int mark_index; mark_index = GSUB_is_glyph_covered((const BYTE*)mbpf1+offset, glyphs[glyph_index]); if (mark_index != -1) { int base_index; int base_glyph = glyph_index - write_dir; if (glyph_class_table) { while (OT_get_glyph_class(glyph_class_table, glyphs[base_glyph]) == MarkGlyph && base_glyph > 0 && base_glyph < glyph_count) base_glyph -= write_dir; } offset = GET_BE_WORD(mbpf1->BaseCoverage); base_index = GSUB_is_glyph_covered((const BYTE*)mbpf1+offset, glyphs[base_glyph]); if (base_index != -1) { const GPOS_MarkArray *ma; const GPOS_MarkRecord *mr; const GPOS_BaseArray *ba; const GPOS_BaseRecord *br; int mark_class; int class_count = GET_BE_WORD(mbpf1->ClassCount); int baserecord_size; POINT base_pt; POINT mark_pt; TRACE("Mark %x(%i) and base %x(%i)\n",glyphs[glyph_index], mark_index, glyphs[base_glyph], base_index); offset = GET_BE_WORD(mbpf1->MarkArray); ma = (const GPOS_MarkArray*)((const BYTE*)mbpf1 + offset); if (mark_index > GET_BE_WORD(ma->MarkCount)) { ERR("Mark index exceeded mark count\n"); return -1; } mr = &ma->MarkRecord[mark_index]; mark_class = GET_BE_WORD(mr->Class); TRACE("Mark Class %i total classes %i\n",mark_class,class_count); offset = GET_BE_WORD(mbpf1->BaseArray); ba = (const GPOS_BaseArray*)((const BYTE*)mbpf1 + offset); baserecord_size = class_count * sizeof(WORD); br = (const GPOS_BaseRecord*)((const BYTE*)ba + sizeof(WORD) + (baserecord_size * base_index)); offset = GET_BE_WORD(br->BaseAnchor[mark_class]); GPOS_get_anchor_values((const BYTE*)ba + offset, &base_pt, ppem); offset = GET_BE_WORD(mr->MarkAnchor); GPOS_get_anchor_values((const BYTE*)ma + offset, &mark_pt, ppem); TRACE("Offset on base is %i,%i design units\n",base_pt.x,base_pt.y); TRACE("Offset on mark is %i,%i design units\n",mark_pt.x, mark_pt.y); pt->x += base_pt.x - mark_pt.x; pt->y += base_pt.y - mark_pt.y; TRACE("Resulting cumulative offset is %i,%i design units\n",pt->x,pt->y); rc = base_glyph; } } } else FIXME("Unhandled Mark To Base Format %i\n",GET_BE_WORD(mbpf1->PosFormat)); } return rc; } static VOID GPOS_apply_MarkToLigature(const OT_LookupTable *look, const SCRIPT_ANALYSIS *analysis, const WORD *glyphs, INT glyph_index, INT glyph_count, INT ppem, LPPOINT pt) { int j; int write_dir = (analysis->fRTL && !analysis->fLogicalOrder) ? -1 : 1; TRACE("MarkToLigature Attachment Positioning Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { const GPOS_MarkLigPosFormat1 *mlpf1 = (const GPOS_MarkLigPosFormat1 *)GPOS_get_subtable(look, j); if (GET_BE_WORD(mlpf1->PosFormat) == 1) { int offset = GET_BE_WORD(mlpf1->MarkCoverage); int mark_index; mark_index = GSUB_is_glyph_covered((const BYTE*)mlpf1+offset, glyphs[glyph_index]); if (mark_index != -1) { int ligature_index; offset = GET_BE_WORD(mlpf1->LigatureCoverage); ligature_index = GSUB_is_glyph_covered((const BYTE*)mlpf1+offset, glyphs[glyph_index - write_dir]); if (ligature_index != -1) { const GPOS_MarkArray *ma; const GPOS_MarkRecord *mr; const GPOS_LigatureArray *la; const GPOS_LigatureAttach *lt; int mark_class; int class_count = GET_BE_WORD(mlpf1->ClassCount); int component_count; int component_size; int i; POINT ligature_pt; POINT mark_pt; TRACE("Mark %x(%i) and ligature %x(%i)\n",glyphs[glyph_index], mark_index, glyphs[glyph_index - write_dir], ligature_index); offset = GET_BE_WORD(mlpf1->MarkArray); ma = (const GPOS_MarkArray*)((const BYTE*)mlpf1 + offset); if (mark_index > GET_BE_WORD(ma->MarkCount)) { ERR("Mark index exceeded mark count\n"); return; } mr = &ma->MarkRecord[mark_index]; mark_class = GET_BE_WORD(mr->Class); TRACE("Mark Class %i total classes %i\n",mark_class,class_count); offset = GET_BE_WORD(mlpf1->LigatureArray); la = (const GPOS_LigatureArray*)((const BYTE*)mlpf1 + offset); if (ligature_index > GET_BE_WORD(la->LigatureCount)) { ERR("Ligature index exceeded ligature count\n"); return; } offset = GET_BE_WORD(la->LigatureAttach[ligature_index]); lt = (const GPOS_LigatureAttach*)((const BYTE*)la + offset); component_count = GET_BE_WORD(lt->ComponentCount); component_size = class_count * sizeof(WORD); offset = 0; for (i = 0; i < component_count && !offset; i++) { int k; const GPOS_ComponentRecord *cr = (const GPOS_ComponentRecord*)((const BYTE*)lt->ComponentRecord + (component_size * i)); for (k = 0; k < class_count && !offset; k++) offset = GET_BE_WORD(cr->LigatureAnchor[k]); cr = (const GPOS_ComponentRecord*)((const BYTE*)cr + component_size); } if (!offset) { ERR("Failed to find avalible ligature connection point\n"); return; } GPOS_get_anchor_values((const BYTE*)lt + offset, &ligature_pt, ppem); offset = GET_BE_WORD(mr->MarkAnchor); GPOS_get_anchor_values((const BYTE*)ma + offset, &mark_pt, ppem); TRACE("Offset on ligature is %i,%i design units\n",ligature_pt.x,ligature_pt.y); TRACE("Offset on mark is %i,%i design units\n",mark_pt.x, mark_pt.y); pt->x += ligature_pt.x - mark_pt.x; pt->y += ligature_pt.y - mark_pt.y; TRACE("Resulting cumulative offset is %i,%i design units\n",pt->x,pt->y); } } } else FIXME("Unhandled Mark To Ligature Format %i\n",GET_BE_WORD(mlpf1->PosFormat)); } } static BOOL GPOS_apply_MarkToMark(const OT_LookupTable *look, const SCRIPT_ANALYSIS *analysis, const WORD *glyphs, INT glyph_index, INT glyph_count, INT ppem, LPPOINT pt) { int j; BOOL rc = FALSE; int write_dir = (analysis->fRTL && !analysis->fLogicalOrder) ? -1 : 1; TRACE("MarkToMark Attachment Positioning Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { const GPOS_MarkMarkPosFormat1 *mmpf1 = (const GPOS_MarkMarkPosFormat1 *)GPOS_get_subtable(look, j); if (GET_BE_WORD(mmpf1->PosFormat) == 1) { int offset = GET_BE_WORD(mmpf1->Mark1Coverage); int mark_index; mark_index = GSUB_is_glyph_covered((const BYTE*)mmpf1+offset, glyphs[glyph_index]); if (mark_index != -1) { int mark2_index; offset = GET_BE_WORD(mmpf1->Mark2Coverage); mark2_index = GSUB_is_glyph_covered((const BYTE*)mmpf1+offset, glyphs[glyph_index - write_dir]); if (mark2_index != -1) { const GPOS_MarkArray *ma; const GPOS_MarkRecord *mr; const GPOS_Mark2Array *m2a; const GPOS_Mark2Record *m2r; int mark_class; int class_count = GET_BE_WORD(mmpf1->ClassCount); int mark2record_size; POINT mark2_pt; POINT mark_pt; TRACE("Mark %x(%i) and Mark2 %x(%i)\n",glyphs[glyph_index], mark_index, glyphs[glyph_index - write_dir], mark2_index); offset = GET_BE_WORD(mmpf1->Mark1Array); ma = (const GPOS_MarkArray*)((const BYTE*)mmpf1 + offset); if (mark_index > GET_BE_WORD(ma->MarkCount)) { ERR("Mark index exceeded mark count\n"); return FALSE; } mr = &ma->MarkRecord[mark_index]; mark_class = GET_BE_WORD(mr->Class); TRACE("Mark Class %i total classes %i\n",mark_class,class_count); offset = GET_BE_WORD(mmpf1->Mark2Array); m2a = (const GPOS_Mark2Array*)((const BYTE*)mmpf1 + offset); mark2record_size = class_count * sizeof(WORD); m2r = (const GPOS_Mark2Record*)((const BYTE*)m2a + sizeof(WORD) + (mark2record_size * mark2_index)); offset = GET_BE_WORD(m2r->Mark2Anchor[mark_class]); GPOS_get_anchor_values((const BYTE*)m2a + offset, &mark2_pt, ppem); offset = GET_BE_WORD(mr->MarkAnchor); GPOS_get_anchor_values((const BYTE*)ma + offset, &mark_pt, ppem); TRACE("Offset on mark2 is %i,%i design units\n",mark2_pt.x,mark2_pt.y); TRACE("Offset on mark is %i,%i design units\n",mark_pt.x, mark_pt.y); pt->x += mark2_pt.x - mark_pt.x; pt->y += mark2_pt.y - mark_pt.y; TRACE("Resulting cumulative offset is %i,%i design units\n",pt->x,pt->y); rc = TRUE; } } } else FIXME("Unhandled Mark To Mark Format %i\n",GET_BE_WORD(mmpf1->PosFormat)); } return rc; } static INT GPOS_apply_ChainContextPos(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOGFONTW lplogfont, const SCRIPT_ANALYSIS *analysis, INT* piAdvance, const OT_LookupList *lookup, const OT_LookupTable *look, const WORD *glyphs, INT glyph_index, INT glyph_count, INT ppem, GOFFSET *pGoffset) { int j; int write_dir = (analysis->fRTL && !analysis->fLogicalOrder) ? -1 : 1; TRACE("Chaining Contextual Positioning Subtable\n"); for (j = 0; j < GET_BE_WORD(look->SubTableCount); j++) { int offset; const GPOS_ChainContextPosFormat3_1 *ccpf3 = (GPOS_ChainContextPosFormat3_1 *)GPOS_get_subtable(look, j); int dirLookahead = write_dir; int dirBacktrack = -1 * write_dir; if (GET_BE_WORD(ccpf3->PosFormat) == 1) { static int once; if (!once++) FIXME(" TODO: subtype 1 (Simple Chaining Context Glyph Positioning)\n"); continue; } else if (GET_BE_WORD(ccpf3->PosFormat) == 2) { static int once; if (!once++) FIXME(" TODO: subtype 2 (Class-based Chaining Context Glyph Positioning)\n"); continue; } else if (GET_BE_WORD(ccpf3->PosFormat) == 3) { int k; int indexGlyphs; const GPOS_ChainContextPosFormat3_2 *ccpf3_2; const GPOS_ChainContextPosFormat3_3 *ccpf3_3; const GPOS_ChainContextPosFormat3_4 *ccpf3_4; TRACE(" subtype 3 (Coverage-based Chaining Context Glyph Positioning)\n"); for (k = 0; k < GET_BE_WORD(ccpf3->BacktrackGlyphCount); k++) { offset = GET_BE_WORD(ccpf3->Coverage[k]); if (GSUB_is_glyph_covered((const BYTE*)ccpf3+offset, glyphs[glyph_index + (dirBacktrack * (k+1))]) == -1) break; } if (k != GET_BE_WORD(ccpf3->BacktrackGlyphCount)) continue; TRACE("Matched Backtrack\n"); ccpf3_2 = (const GPOS_ChainContextPosFormat3_2*)((BYTE *)ccpf3 + FIELD_OFFSET(GPOS_ChainContextPosFormat3_1, Coverage[GET_BE_WORD(ccpf3->BacktrackGlyphCount)])); indexGlyphs = GET_BE_WORD(ccpf3_2->InputGlyphCount); for (k = 0; k < indexGlyphs; k++) { offset = GET_BE_WORD(ccpf3_2->Coverage[k]); if (GSUB_is_glyph_covered((const BYTE*)ccpf3+offset, glyphs[glyph_index + (write_dir * k)]) == -1) break; } if (k != indexGlyphs) continue; TRACE("Matched IndexGlyphs\n"); ccpf3_3 = (const GPOS_ChainContextPosFormat3_3*)((BYTE *)ccpf3_2 + FIELD_OFFSET(GPOS_ChainContextPosFormat3_2, Coverage[GET_BE_WORD(ccpf3_2->InputGlyphCount)])); for (k = 0; k < GET_BE_WORD(ccpf3_3->LookaheadGlyphCount); k++) { offset = GET_BE_WORD(ccpf3_3->Coverage[k]); if (GSUB_is_glyph_covered((const BYTE*)ccpf3+offset, glyphs[glyph_index + (dirLookahead * (indexGlyphs + k))]) == -1) break; } if (k != GET_BE_WORD(ccpf3_3->LookaheadGlyphCount)) continue; TRACE("Matched LookAhead\n"); ccpf3_4 = (const GPOS_ChainContextPosFormat3_4*)((BYTE *)ccpf3_3 + FIELD_OFFSET(GPOS_ChainContextPosFormat3_3, Coverage[GET_BE_WORD(ccpf3_3->LookaheadGlyphCount)])); if (GET_BE_WORD(ccpf3_4->PosCount)) { for (k = 0; k < GET_BE_WORD(ccpf3_4->PosCount); k++) { int lookupIndex = GET_BE_WORD(ccpf3_4->PosLookupRecord[k].LookupListIndex); int SequenceIndex = GET_BE_WORD(ccpf3_4->PosLookupRecord[k].SequenceIndex) * write_dir; TRACE("Position: %i -> %i %i\n",k, SequenceIndex, lookupIndex); GPOS_apply_lookup(psc, lpotm, lplogfont, analysis, piAdvance, lookup, lookupIndex, glyphs, glyph_index + SequenceIndex, glyph_count, pGoffset); } return glyph_index + indexGlyphs + GET_BE_WORD(ccpf3_3->LookaheadGlyphCount); } else return glyph_index + 1; } else FIXME("Unhandled Chaining Contextual Positioning Format %i\n",GET_BE_WORD(ccpf3->PosFormat)); } return glyph_index + 1; } static INT GPOS_apply_lookup(ScriptCache *psc, LPOUTLINETEXTMETRICW lpotm, LPLOGFONTW lplogfont, const SCRIPT_ANALYSIS *analysis, INT* piAdvance, const OT_LookupList* lookup, INT lookup_index, const WORD *glyphs, INT glyph_index, INT glyph_count, GOFFSET *pGoffset) { int offset; const OT_LookupTable *look; int ppem = lpotm->otmTextMetrics.tmAscent + lpotm->otmTextMetrics.tmDescent - lpotm->otmTextMetrics.tmInternalLeading; WORD type; offset = GET_BE_WORD(lookup->Lookup[lookup_index]); look = (const OT_LookupTable*)((const BYTE*)lookup + offset); type = GET_BE_WORD(look->LookupType); TRACE("type %i, flag %x, subtables %i\n",type,GET_BE_WORD(look->LookupFlag),GET_BE_WORD(look->SubTableCount)); if (type == 9) { if (GET_BE_WORD(look->SubTableCount)) { const GPOS_ExtensionPosFormat1 *ext = (const GPOS_ExtensionPosFormat1 *)((const BYTE *)look + GET_BE_WORD(look->SubTable[0])); if (GET_BE_WORD(ext->PosFormat) == 1) { type = GET_BE_WORD(ext->ExtensionLookupType); TRACE("extension type %i\n",type); } else { FIXME("Unhandled Extension Positioning Format %i\n",GET_BE_WORD(ext->PosFormat)); } } else { WARN("lookup type is Extension Positioning but no extension subtable exists\n"); } } switch (type) { case 1: { double devX, devY; POINT adjust = {0,0}; POINT advance = {0,0}; GPOS_apply_SingleAdjustment(look, analysis, glyphs, glyph_index, glyph_count, ppem, &adjust, &advance); if (adjust.x || adjust.y) { GPOS_convert_design_units_to_device(lpotm, lplogfont, adjust.x, adjust.y, &devX, &devY); pGoffset[glyph_index].du += round(devX); pGoffset[glyph_index].dv += round(devY); } if (advance.x || advance.y) { GPOS_convert_design_units_to_device(lpotm, lplogfont, advance.x, advance.y, &devX, &devY); piAdvance[glyph_index] += round(devX); if (advance.y) FIXME("Unhandled adjustment to Y advancement\n"); } break; } case 2: { POINT advance[2]= {{0,0},{0,0}}; POINT adjust[2]= {{0,0},{0,0}}; double devX, devY; int index; int write_dir = (analysis->fRTL && !analysis->fLogicalOrder) ? -1 : 1; int offset_sign = (analysis->fRTL && analysis->fLogicalOrder) ? -1 : 1; index = GPOS_apply_PairAdjustment(look, analysis, glyphs, glyph_index, glyph_count, ppem, adjust, advance); if (adjust[0].x || adjust[0].y) { GPOS_convert_design_units_to_device(lpotm, lplogfont, adjust[0].x, adjust[0].y, &devX, &devY); pGoffset[glyph_index].du += round(devX) * offset_sign; pGoffset[glyph_index].dv += round(devY); } if (advance[0].x || advance[0].y) { GPOS_convert_design_units_to_device(lpotm, lplogfont, advance[0].x, advance[0].y, &devX, &devY); piAdvance[glyph_index] += round(devX); } if (adjust[1].x || adjust[1].y) { GPOS_convert_design_units_to_device(lpotm, lplogfont, adjust[1].x, adjust[1].y, &devX, &devY); pGoffset[glyph_index + write_dir].du += round(devX) * offset_sign; pGoffset[glyph_index + write_dir].dv += round(devY); } if (advance[1].x || advance[1].y) { GPOS_convert_design_units_to_device(lpotm, lplogfont, advance[1].x, advance[1].y, &devX, &devY); piAdvance[glyph_index + write_dir] += round(devX); } return index; } case 3: { POINT desU = {0,0}; double devX, devY; int write_dir = (analysis->fRTL && !analysis->fLogicalOrder) ? -1 : 1; GPOS_apply_CursiveAttachment(look, analysis, glyphs, glyph_index, glyph_count, ppem, &desU); if (desU.x || desU.y) { GPOS_convert_design_units_to_device(lpotm, lplogfont, desU.x, desU.y, &devX, &devY); /* Windows does not appear to apply X offsets here */ pGoffset[glyph_index].dv = round(devY) + pGoffset[glyph_index+write_dir].dv; } break; } case 4: { double devX, devY; POINT desU = {0,0}; int base_index = GPOS_apply_MarkToBase(psc, look, analysis, glyphs, glyph_index, glyph_count, ppem, &desU); if (base_index != -1) { GPOS_convert_design_units_to_device(lpotm, lplogfont, desU.x, desU.y, &devX, &devY); if (!analysis->fRTL) pGoffset[glyph_index].du = round(devX) - piAdvance[base_index]; else { if (analysis->fLogicalOrder) devX *= -1; pGoffset[glyph_index].du = round(devX); } pGoffset[glyph_index].dv = round(devY); } break; } case 5: { double devX, devY; POINT desU = {0,0}; GPOS_apply_MarkToLigature(look, analysis, glyphs, glyph_index, glyph_count, ppem, &desU); if (desU.x || desU.y) { GPOS_convert_design_units_to_device(lpotm, lplogfont, desU.x, desU.y, &devX, &devY); pGoffset[glyph_index].du = (round(devX) - piAdvance[glyph_index-1]); pGoffset[glyph_index].dv = round(devY); } break; } case 6: { double devX, devY; POINT desU = {0,0}; int write_dir = (analysis->fRTL && !analysis->fLogicalOrder) ? -1 : 1; if (GPOS_apply_MarkToMark(look, analysis, glyphs, glyph_index, glyph_count, ppem, &desU)) { GPOS_convert_design_units_to_device(lpotm, lplogfont, desU.x, desU.y, &devX, &devY); if (analysis->fRTL && analysis->fLogicalOrder) devX *= -1; pGoffset[glyph_index].du = round(devX) + pGoffset[glyph_index - write_dir].du; pGoffset[glyph_index].dv = round(devY) + pGoffset[glyph_index - write_dir].dv; } break; } case 8: { return GPOS_apply_ChainContextPos(psc, lpotm, lplogfont, analysis, piAdvance, lookup, look, glyphs, glyph_index, glyph_count, ppem, pGoffset); } default: FIXME("We do not handle SubType %i\n",type); } return glyph_index+1; } 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) { const GPOS_Header *header = (const GPOS_Header *)psc->GPOS_Table; const OT_LookupList *lookup = (const OT_LookupList*)((const BYTE*)header + GET_BE_WORD(header->LookupList)); return GPOS_apply_lookup(psc, lpotm, lplogfont, analysis, piAdvance, lookup, lookup_index, glyphs, glyph_index, glyph_count, pGoffset); } static void GSUB_initialize_script_cache(ScriptCache *psc) { int i; if (psc->GSUB_Table) { const OT_ScriptList *script; const GSUB_Header* header = (const GSUB_Header*)psc->GSUB_Table; script = (const OT_ScriptList*)((const BYTE*)header + GET_BE_WORD(header->ScriptList)); psc->script_count = GET_BE_WORD(script->ScriptCount); TRACE("initializing %i scripts in this font\n",psc->script_count); if (psc->script_count) { psc->scripts = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(LoadedScript) * psc->script_count); for (i = 0; i < psc->script_count; i++) { int offset = GET_BE_WORD(script->ScriptRecord[i].Script); psc->scripts[i].tag = MS_MAKE_TAG(script->ScriptRecord[i].ScriptTag[0], script->ScriptRecord[i].ScriptTag[1], script->ScriptRecord[i].ScriptTag[2], script->ScriptRecord[i].ScriptTag[3]); psc->scripts[i].gsub_table = ((const BYTE*)script + offset); } } } } static void GPOS_expand_script_cache(ScriptCache *psc) { int i, count; const OT_ScriptList *script; const GPOS_Header* header = (const GPOS_Header*)psc->GPOS_Table; if (!header) return; script = (const OT_ScriptList*)((const BYTE*)header + GET_BE_WORD(header->ScriptList)); count = GET_BE_WORD(script->ScriptCount); if (!count) return; if (!psc->script_count) { psc->script_count = count; TRACE("initializing %i scripts in this font\n",psc->script_count); if (psc->script_count) { psc->scripts = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(LoadedScript) * psc->script_count); for (i = 0; i < psc->script_count; i++) { int offset = GET_BE_WORD(script->ScriptRecord[i].Script); psc->scripts[i].tag = MS_MAKE_TAG(script->ScriptRecord[i].ScriptTag[0], script->ScriptRecord[i].ScriptTag[1], script->ScriptRecord[i].ScriptTag[2], script->ScriptRecord[i].ScriptTag[3]); psc->scripts[i].gpos_table = ((const BYTE*)script + offset); } } } else { for (i = 0; i < count; i++) { int j; int offset = GET_BE_WORD(script->ScriptRecord[i].Script); OPENTYPE_TAG tag = MS_MAKE_TAG(script->ScriptRecord[i].ScriptTag[0], script->ScriptRecord[i].ScriptTag[1], script->ScriptRecord[i].ScriptTag[2], script->ScriptRecord[i].ScriptTag[3]); for (j = 0; j < psc->script_count; j++) { if (psc->scripts[j].tag == tag) { psc->scripts[j].gpos_table = ((const BYTE*)script + offset); break; } } if (j == psc->script_count) { psc->script_count++; psc->scripts = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,psc->scripts, sizeof(LoadedScript) * psc->script_count); psc->scripts[j].tag = tag; psc->scripts[j].gpos_table = ((const BYTE*)script + offset); } } } } static void _initialize_script_cache(ScriptCache *psc) { if (!psc->scripts_initialized) { GSUB_initialize_script_cache(psc); GPOS_expand_script_cache(psc); psc->scripts_initialized = TRUE; } } HRESULT OpenType_GetFontScriptTags(ScriptCache *psc, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pScriptTags, int *pcTags) { int i; HRESULT rc = S_OK; _initialize_script_cache(psc); *pcTags = psc->script_count; if (!searchingFor && cMaxTags < *pcTags) rc = E_OUTOFMEMORY; else if (searchingFor) rc = USP_E_SCRIPT_NOT_IN_FONT; for (i = 0; i < psc->script_count; i++) { if (i < cMaxTags) pScriptTags[i] = psc->scripts[i].tag; if (searchingFor) { if (searchingFor == psc->scripts[i].tag) { pScriptTags[0] = psc->scripts[i].tag; *pcTags = 1; rc = S_OK; break; } } } return rc; } static void GSUB_initialize_language_cache(LoadedScript *script) { int i; if (script->gsub_table) { DWORD offset; const OT_Script* table = script->gsub_table; script->language_count = GET_BE_WORD(table->LangSysCount); offset = GET_BE_WORD(table->DefaultLangSys); if (offset) { script->default_language.tag = MS_MAKE_TAG('d','f','l','t'); script->default_language.gsub_table = (const BYTE*)table + offset; } if (script->language_count) { TRACE("Deflang %p, LangCount %i\n",script->default_language.gsub_table, script->language_count); script->languages = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LoadedLanguage) * script->language_count); for (i = 0; i < script->language_count; i++) { int offset = GET_BE_WORD(table->LangSysRecord[i].LangSys); script->languages[i].tag = MS_MAKE_TAG(table->LangSysRecord[i].LangSysTag[0], table->LangSysRecord[i].LangSysTag[1], table->LangSysRecord[i].LangSysTag[2], table->LangSysRecord[i].LangSysTag[3]); script->languages[i].gsub_table = ((const BYTE*)table + offset); } } } } static void GPOS_expand_language_cache(LoadedScript *script) { int count; const OT_Script* table = script->gpos_table; DWORD offset; if (!table) return; offset = GET_BE_WORD(table->DefaultLangSys); if (offset) script->default_language.gpos_table = (const BYTE*)table + offset; count = GET_BE_WORD(table->LangSysCount); TRACE("Deflang %p, LangCount %i\n",script->default_language.gpos_table, count); if (!count) return; if (!script->language_count) { int i; script->language_count = count; script->languages = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LoadedLanguage) * script->language_count); for (i = 0; i < script->language_count; i++) { int offset = GET_BE_WORD(table->LangSysRecord[i].LangSys); script->languages[i].tag = MS_MAKE_TAG(table->LangSysRecord[i].LangSysTag[0], table->LangSysRecord[i].LangSysTag[1], table->LangSysRecord[i].LangSysTag[2], table->LangSysRecord[i].LangSysTag[3]); script->languages[i].gpos_table = ((const BYTE*)table + offset); } } else if (count) { int i,j; for (i = 0; i < count; i++) { int offset = GET_BE_WORD(table->LangSysRecord[i].LangSys); OPENTYPE_TAG tag = MS_MAKE_TAG(table->LangSysRecord[i].LangSysTag[0], table->LangSysRecord[i].LangSysTag[1], table->LangSysRecord[i].LangSysTag[2], table->LangSysRecord[i].LangSysTag[3]); for (j = 0; j < script->language_count; j++) { if (script->languages[j].tag == tag) { script->languages[j].gpos_table = ((const BYTE*)table + offset); break; } } if (j == script->language_count) { script->language_count++; script->languages = HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,script->languages, sizeof(LoadedLanguage) * script->language_count); script->languages[j].tag = tag; script->languages[j].gpos_table = ((const BYTE*)table + offset); } } } } static void _initialize_language_cache(LoadedScript *script) { if (!script->languages_initialized) { GSUB_initialize_language_cache(script); GPOS_expand_language_cache(script); script->languages_initialized = TRUE; } } HRESULT OpenType_GetFontLanguageTags(ScriptCache *psc, OPENTYPE_TAG script_tag, OPENTYPE_TAG searchingFor, int cMaxTags, OPENTYPE_TAG *pLanguageTags, int *pcTags) { int i; HRESULT rc = S_OK; LoadedScript *script = NULL; _initialize_script_cache(psc); for (i = 0; i < psc->script_count; i++) { if (psc->scripts[i].tag == script_tag) { script = &psc->scripts[i]; break; } } if (!script) return E_INVALIDARG; _initialize_language_cache(script); if (!searchingFor && cMaxTags < script->language_count) rc = E_OUTOFMEMORY; else if (searchingFor) rc = E_INVALIDARG; *pcTags = script->language_count; for (i = 0; i < script->language_count; i++) { if (i < cMaxTags) pLanguageTags[i] = script->languages[i].tag; if (searchingFor) { if (searchingFor == script->languages[i].tag) { pLanguageTags[0] = script->languages[i].tag; *pcTags = 1; rc = S_OK; break; } } } if (script->default_language.gsub_table) { if (i < cMaxTags) pLanguageTags[i] = script->default_language.tag; if (searchingFor && FAILED(rc)) { pLanguageTags[0] = script->default_language.tag; } i++; *pcTags = (*pcTags) + 1; } return rc; } static void GSUB_initialize_feature_cache(LPCVOID table, LoadedLanguage *language) { int i; if (language->gsub_table) { const OT_LangSys *lang = language->gsub_table; const GSUB_Header *header = (const GSUB_Header *)table; const OT_FeatureList *feature_list; language->feature_count = GET_BE_WORD(lang->FeatureCount); TRACE("%i features\n",language->feature_count); if (language->feature_count) { language->features = HeapAlloc(GetProcessHeap(),0,sizeof(LoadedFeature)*language->feature_count); feature_list = (const OT_FeatureList*)((const BYTE*)header + GET_BE_WORD(header->FeatureList)); for (i = 0; i < language->feature_count; i++) { const OT_Feature *feature; int j; int index = GET_BE_WORD(lang->FeatureIndex[i]); language->features[i].tag = MS_MAKE_TAG(feature_list->FeatureRecord[index].FeatureTag[0], feature_list->FeatureRecord[index].FeatureTag[1], feature_list->FeatureRecord[index].FeatureTag[2], feature_list->FeatureRecord[index].FeatureTag[3]); language->features[i].feature = ((const BYTE*)feature_list + GET_BE_WORD(feature_list->FeatureRecord[index].Feature)); feature = (const OT_Feature*)language->features[i].feature; language->features[i].lookup_count = GET_BE_WORD(feature->LookupCount); language->features[i].lookups = HeapAlloc(GetProcessHeap(),0,sizeof(WORD) * language->features[i].lookup_count); for (j = 0; j < language->features[i].lookup_count; j++) language->features[i].lookups[j] = GET_BE_WORD(feature->LookupListIndex[j]); language->features[i].tableType = FEATURE_GSUB_TABLE; } } } } static void GPOS_expand_feature_cache(LPCVOID table, LoadedLanguage *language) { int i, count; const OT_LangSys *lang = language->gpos_table; const GPOS_Header *header = (const GPOS_Header *)table; const OT_FeatureList *feature_list; if (!lang) return; count = GET_BE_WORD(lang->FeatureCount); feature_list = (const OT_FeatureList*)((const BYTE*)header + GET_BE_WORD(header->FeatureList)); TRACE("%i features\n",count); if (!count) return; if (!language->feature_count) { language->feature_count = count; if (language->feature_count) { language->features = HeapAlloc(GetProcessHeap(),0,sizeof(LoadedFeature)*language->feature_count); for (i = 0; i < language->feature_count; i++) { const OT_Feature *feature; int j; int index = GET_BE_WORD(lang->FeatureIndex[i]); language->features[i].tag = MS_MAKE_TAG(feature_list->FeatureRecord[index].FeatureTag[0], feature_list->FeatureRecord[index].FeatureTag[1], feature_list->FeatureRecord[index].FeatureTag[2], feature_list->FeatureRecord[index].FeatureTag[3]); language->features[i].feature = ((const BYTE*)feature_list + GET_BE_WORD(feature_list->FeatureRecord[index].Feature)); feature = (const OT_Feature*)language->features[i].feature; language->features[i].lookup_count = GET_BE_WORD(feature->LookupCount); language->features[i].lookups = HeapAlloc(GetProcessHeap(),0,sizeof(WORD) * language->features[i].lookup_count); for (j = 0; j < language->features[i].lookup_count; j++) language->features[i].lookups[j] = GET_BE_WORD(feature->LookupListIndex[j]); language->features[i].tableType = FEATURE_GPOS_TABLE; } } } else { language->features = HeapReAlloc(GetProcessHeap(),0,language->features, sizeof(LoadedFeature)*(language->feature_count + count)); for (i = 0; i < count; i++) { const OT_Feature *feature; int j; int index = GET_BE_WORD(lang->FeatureIndex[i]); int idx = language->feature_count + i; language->features[idx].tag = MS_MAKE_TAG(feature_list->FeatureRecord[index].FeatureTag[0], feature_list->FeatureRecord[index].FeatureTag[1], feature_list->FeatureRecord[index].FeatureTag[2], feature_list->FeatureRecord[index].FeatureTag[3]); language->features[idx].feature = ((const BYTE*)feature_list + GET_BE_WORD(feature_list->FeatureRecord[index].Feature)); feature = (const OT_Feature*)language->features[idx].feature; language->features[idx].lookup_count = GET_BE_WORD(feature->LookupCount); language->features[idx].lookups = HeapAlloc(GetProcessHeap(),0,sizeof(WORD) * language->features[idx].lookup_count); for (j = 0; j < language->features[idx].lookup_count; j++) language->features[idx].lookups[j] = GET_BE_WORD(feature->LookupListIndex[j]); language->features[idx].tableType = FEATURE_GPOS_TABLE; } language->feature_count += count; } } static void _initialize_feature_cache(ScriptCache *psc, LoadedLanguage *language) { if (!language->features_initialized) { GSUB_initialize_feature_cache(psc->GSUB_Table, language); GPOS_expand_feature_cache(psc->GPOS_Table, language); language->features_initialized = TRUE; } } 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) { int i; HRESULT rc = S_OK; LoadedScript *script = NULL; LoadedLanguage *language = NULL; _initialize_script_cache(psc); for (i = 0; i < psc->script_count; i++) { if (psc->scripts[i].tag == script_tag) { script = &psc->scripts[i]; break; } } if (!script) { *pcTags = 0; if (!filtered) return S_OK; else return E_INVALIDARG; } _initialize_language_cache(script); if ((script->default_language.gsub_table || script->default_language.gpos_table) && script->default_language.tag == language_tag) language = &script->default_language; else { for (i = 0; i < script->language_count; i++) { if (script->languages[i].tag == language_tag) { language = &script->languages[i]; break; } } } if (!language) { *pcTags = 0; return S_OK; } _initialize_feature_cache(psc, language); if (tableType) { *pcTags = 0; for (i = 0; i < language->feature_count; i++) if (language->features[i].tableType == tableType) *pcTags = (*pcTags)+1; } else *pcTags = language->feature_count; if (!searchingFor && cMaxTags < *pcTags) rc = E_OUTOFMEMORY; else if (searchingFor) rc = E_INVALIDARG; for (i = 0; i < language->feature_count; i++) { if (i < cMaxTags) { if (!tableType || language->features[i].tableType == tableType) pFeatureTags[i] = language->features[i].tag; } if (searchingFor) { if ((searchingFor == language->features[i].tag) && (!tableType || language->features[i].tableType == tableType)) { pFeatureTags[0] = language->features[i].tag; *pcTags = 1; if (feature) *feature = &language->features[i]; rc = S_OK; break; } } } return rc; }