1ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// Copyright 2014 PDFium Authors. All rights reserved. 2ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// Use of this source code is governed by a BSD-style license that can be 3ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// found in the LICENSE file. 4ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 5ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov 7ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#include "../../../include/fxge/fx_ge.h" 8ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#include "../../../include/fxge/fx_freetype.h" 9ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov#include "ttgsubtable.h" 10ee451cb395940862dad63c85adfe8f2fd55e864cSvet GanovCFX_GlyphMap::CFX_GlyphMap() 11ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 12ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 13ee451cb395940862dad63c85adfe8f2fd55e864cSvet GanovCFX_GlyphMap::~CFX_GlyphMap() 14ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 15ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 16ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovextern "C" { 17ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov static int _CompareInt(const void* p1, const void* p2) 18ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov { 19ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return (*(FX_DWORD*)p1) - (*(FX_DWORD*)p2); 20ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 21ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov}; 22ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovstruct _IntPair { 23ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FX_INT32 key; 24ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FX_INT32 value; 25ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov}; 26ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_GlyphMap::SetAt(int key, int value) 27ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 28ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FX_DWORD count = m_Buffer.GetSize() / sizeof(_IntPair); 29ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov _IntPair* buf = (_IntPair*)m_Buffer.GetBuffer(); 30ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov _IntPair pair = {key, value}; 31ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (count == 0 || key > buf[count - 1].key) { 32ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov m_Buffer.AppendBlock(&pair, sizeof(_IntPair)); 33ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 34ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 35ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int low = 0, high = count - 1; 36ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov while (low <= high) { 37ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int mid = (low + high) / 2; 38ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (buf[mid].key < key) { 39ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov low = mid + 1; 40ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } else if (buf[mid].key > key) { 41ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov high = mid - 1; 42ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } else { 43ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov buf[mid].value = value; 44ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 45ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 46ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 47ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov m_Buffer.InsertBlock(low * sizeof(_IntPair), &pair, sizeof(_IntPair)); 48ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 49ee451cb395940862dad63c85adfe8f2fd55e864cSvet GanovFX_BOOL CFX_GlyphMap::Lookup(int key, int &value) 50ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 51ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FX_LPVOID pResult = FXSYS_bsearch(&key, m_Buffer.GetBuffer(), m_Buffer.GetSize() / sizeof(_IntPair), 52ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov sizeof(_IntPair), _CompareInt); 53ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (pResult == NULL) { 54ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return FALSE; 55ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 56ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov value = ((FX_DWORD*)pResult)[1]; 57ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return TRUE; 58ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 59ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovbool CFX_CTTGSUBTable::LoadGSUBTable(FT_Bytes gsub) 60ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 61ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov header.Version = gsub[0] << 24 | gsub[1] << 16 | gsub[2] << 8 | gsub[3]; 62ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(header.Version != 0x00010000) { 63ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return false; 64ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 65ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov header.ScriptList = gsub[4] << 8 | gsub[5]; 66ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov header.FeatureList = gsub[6] << 8 | gsub[7]; 67ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov header.LookupList = gsub[8] << 8 | gsub[9]; 68ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return Parse( 69ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &gsub[header.ScriptList], 70ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &gsub[header.FeatureList], 71ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &gsub[header.LookupList]); 72ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 73ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovbool CFX_CTTGSUBTable::GetVerticalGlyph(TT_uint32_t glyphnum, TT_uint32_t *vglyphnum) 74ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 75ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint32_t tag[] = { 76ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov (TT_uint8_t)'v' << 24 | 77ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov (TT_uint8_t)'r' << 16 | 78ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov (TT_uint8_t)'t' << 8 | 79ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov (TT_uint8_t)'2', 80ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov (TT_uint8_t)'v' << 24 | 81ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov (TT_uint8_t)'e' << 16 | 82ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov (TT_uint8_t)'r' << 8 | 83ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov (TT_uint8_t)'t', 84ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov }; 85ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (!m_bFeautureMapLoad) { 86ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for (int i = 0; i < ScriptList.ScriptCount; i++) { 87ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for (int j = 0; j < (ScriptList.ScriptRecord + i)->Script.LangSysCount; ++j) { 88ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for (int k = 0; k < ((ScriptList.ScriptRecord + i)->Script.LangSysRecord + j)->LangSys.FeatureCount; ++k) { 89ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FX_DWORD index = *(((ScriptList.ScriptRecord + i)->Script.LangSysRecord + j)->LangSys.FeatureIndex + k); 90ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (FeatureList.FeatureRecord[index].FeatureTag == tag[0] || FeatureList.FeatureRecord[index].FeatureTag == tag[1]) { 91ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FX_DWORD value; 92ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (!m_featureMap.Lookup(index, value)) { 93ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov m_featureMap.SetAt(index, index); 94ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 95ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 96ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 97ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 98ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 99ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (!m_featureMap.GetStartPosition()) { 100ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for (int i = 0; i < FeatureList.FeatureCount; i ++) { 101ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (FeatureList.FeatureRecord[i].FeatureTag == tag[0] || FeatureList.FeatureRecord[i].FeatureTag == tag[1]) { 102ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FX_DWORD value; 103ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (!m_featureMap.Lookup(i, value)) { 104ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov m_featureMap.SetAt(i, i); 105ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 106ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 107ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 108ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 109ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov m_bFeautureMapLoad = TRUE; 110ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 111ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FX_POSITION pos = m_featureMap.GetStartPosition(); 112ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov while (pos) { 113ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FX_DWORD index, value; 114ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov m_featureMap.GetNextAssoc(pos, index, value); 115ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(GetVerticalGlyphSub(glyphnum, vglyphnum, &FeatureList.FeatureRecord[value].Feature)) { 116ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return true; 117ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 118ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 119ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return false; 120ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 121ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovbool CFX_CTTGSUBTable::GetVerticalGlyphSub( 122ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint32_t glyphnum, 123ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint32_t *vglyphnum, 124ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov struct TFeature *Feature) 125ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 126ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(int i = 0; i < Feature->LookupCount; i++) { 127ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int index = Feature->LookupListIndex[i]; 128ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(index < 0 || LookupList.LookupCount < index) { 129ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov continue; 130ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 131ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(LookupList.Lookup[index].LookupType == 1) { 132ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(GetVerticalGlyphSub2( 133ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov glyphnum, 134ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov vglyphnum, 135ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &LookupList.Lookup[index])) { 136ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return true; 137ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 138ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 139ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 140ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return false; 141ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 142ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovbool CFX_CTTGSUBTable::GetVerticalGlyphSub2( 143ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint32_t glyphnum, 144ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint32_t *vglyphnum, 145ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov struct TLookup *Lookup) 146ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 147ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(int i = 0; i < Lookup->SubTableCount; i++) { 148ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov switch(Lookup->SubTable[i]->SubstFormat) { 149ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov case 1: { 150ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TSingleSubstFormat1 *tbl1 = (TSingleSubstFormat1*)Lookup->SubTable[i]; 151ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(GetCoverageIndex(tbl1->Coverage, glyphnum) >= 0) { 152ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov *vglyphnum = glyphnum + tbl1->DeltaGlyphID; 153ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return true; 154ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 155ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov break; 156ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 157ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov case 2: { 158ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TSingleSubstFormat2 *tbl2 = (TSingleSubstFormat2*)Lookup->SubTable[i]; 159ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int index = -1; 160ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov index = GetCoverageIndex(tbl2->Coverage, glyphnum); 161ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(0 <= index && index < tbl2->GlyphCount) { 162ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov *vglyphnum = tbl2->Substitute[index]; 163ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return true; 164ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 165ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov break; 166ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 167ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 168ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 169ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return false; 170ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 171ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovint CFX_CTTGSUBTable::GetCoverageIndex(struct TCoverageFormatBase *Coverage, TT_uint32_t g) 172ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 173ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int i = 0; 174ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(Coverage == NULL) { 175ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return -1; 176ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 177ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov switch(Coverage->CoverageFormat) { 178ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov case 1: { 179ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TCoverageFormat1 *c1 = (TCoverageFormat1*)Coverage; 180ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < c1->GlyphCount; i++) { 181ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if((TT_uint32_t)c1->GlyphArray[i] == g) { 182ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return i; 183ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 184ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 185ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return -1; 186ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 187ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov case 2: { 188ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TCoverageFormat2 *c2 = (TCoverageFormat2*)Coverage; 189ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < c2->RangeCount; i++) { 190ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint32_t s = c2->RangeRecord[i].Start; 191ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint32_t e = c2->RangeRecord[i].End; 192ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint32_t si = c2->RangeRecord[i].StartCoverageIndex; 193ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (s <= g && g <= e) { 194ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return si + g - s; 195ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 196ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 197ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return -1; 198ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 199ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 200ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return -1; 201ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 202ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovbool CFX_CTTGSUBTable::Parse( 203ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes scriptlist, 204ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes featurelist, 205ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes lookuplist) 206ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 207ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseScriptList(scriptlist, &ScriptList); 208ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseFeatureList(featurelist, &FeatureList); 209ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseLookupList(lookuplist, &LookupList); 210ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return true; 211ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 212ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseScriptList(FT_Bytes raw, struct TScriptList *rec) 213ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 214ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int i; 215ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 216ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->ScriptCount = GetUInt16(sp); 217ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(rec->ScriptCount <= 0) { 218ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 219ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 220ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->ScriptRecord = new struct TScriptRecord[rec->ScriptCount]; 221ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < rec->ScriptCount; i++) { 222ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->ScriptRecord[i].ScriptTag = GetUInt32(sp); 223ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint16_t offset = GetUInt16(sp); 224ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseScript( 225ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &raw[offset], 226ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &rec->ScriptRecord[i].Script); 227ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 228ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 229ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseScript(FT_Bytes raw, struct TScript *rec) 230ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 231ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int i; 232ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 233ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->DefaultLangSys = GetUInt16(sp); 234ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->LangSysCount = GetUInt16(sp); 235ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(rec->LangSysCount <= 0) { 236ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 237ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 238ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->LangSysRecord = new struct TLangSysRecord[rec->LangSysCount]; 239ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < rec->LangSysCount; i++) { 240ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->LangSysRecord[i].LangSysTag = GetUInt32(sp); 241ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint16_t offset = GetUInt16(sp); 242ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseLangSys( 243ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &raw[offset], 244ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &rec->LangSysRecord[i].LangSys); 245ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 246ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 247ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseLangSys(FT_Bytes raw, struct TLangSys *rec) 248ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 249ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 250ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->LookupOrder = GetUInt16(sp); 251ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->ReqFeatureIndex = GetUInt16(sp); 252ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->FeatureCount = GetUInt16(sp); 253ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(rec->FeatureCount <= 0) { 254ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 255ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 256ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->FeatureIndex = new TT_uint16_t[rec->FeatureCount]; 257ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FXSYS_memset32(rec->FeatureIndex, 0, sizeof(TT_uint16_t) * rec->FeatureCount); 258ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for (int i = 0; i < rec->FeatureCount; ++i) { 259ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->FeatureIndex[i] = GetUInt16(sp); 260ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 261ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 262ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseFeatureList(FT_Bytes raw, TFeatureList *rec) 263ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 264ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int i; 265ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 266ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->FeatureCount = GetUInt16(sp); 267ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(rec->FeatureCount <= 0) { 268ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 269ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 270ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->FeatureRecord = new struct TFeatureRecord[rec->FeatureCount]; 271ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < rec->FeatureCount; i++) { 272ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->FeatureRecord[i].FeatureTag = GetUInt32(sp); 273ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint16_t offset = GetUInt16(sp); 274ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseFeature( 275ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &raw[offset], 276ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &rec->FeatureRecord[i].Feature); 277ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 278ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 279ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseFeature(FT_Bytes raw, TFeature *rec) 280ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 281ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int i; 282ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 283ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->FeatureParams = GetUInt16(sp); 284ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->LookupCount = GetUInt16(sp); 285ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(rec->LookupCount <= 0) { 286ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 287ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 288ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->LookupListIndex = new TT_uint16_t[rec->LookupCount]; 289ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < rec->LookupCount; i++) { 290ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->LookupListIndex[i] = GetUInt16(sp); 291ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 292ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 293ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseLookupList(FT_Bytes raw, TLookupList *rec) 294ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 295ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int i; 296ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 297ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->LookupCount = GetUInt16(sp); 298ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(rec->LookupCount <= 0) { 299ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 300ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 301ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->Lookup = new struct TLookup[rec->LookupCount]; 302ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < rec->LookupCount; i++) { 303ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint16_t offset = GetUInt16(sp); 304ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseLookup( 305ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &raw[offset], 306ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &rec->Lookup[i]); 307ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 308ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 309ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseLookup(FT_Bytes raw, TLookup *rec) 310ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 311ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int i; 312ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 313ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->LookupType = GetUInt16(sp); 314ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->LookupFlag = GetUInt16(sp); 315ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->SubTableCount = GetUInt16(sp); 316ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(rec->SubTableCount <= 0) { 317ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 318ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 319ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->SubTable = new struct TSubTableBase*[rec->SubTableCount]; 320ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < rec->SubTableCount; i++) { 321ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->SubTable[i] = NULL; 322ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 323ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(rec->LookupType != 1) { 324ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 325ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 326ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < rec->SubTableCount; i++) { 327ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint16_t offset = GetUInt16(sp); 328ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseSingleSubst( 329ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &raw[offset], 330ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &rec->SubTable[i]); 331ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 332ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 333ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseCoverage(FT_Bytes raw, TCoverageFormatBase **rec) 334ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 335ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 336ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint16_t Format = GetUInt16(sp); 337ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov switch(Format) { 338ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov case 1: 339ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov *rec = new TCoverageFormat1(); 340ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseCoverageFormat1(raw, (TCoverageFormat1*)*rec); 341ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov break; 342ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov case 2: 343ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov *rec = new TCoverageFormat2(); 344ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseCoverageFormat2(raw, (TCoverageFormat2*)*rec); 345ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov break; 346ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 347ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 348ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseCoverageFormat1(FT_Bytes raw, TCoverageFormat1 *rec) 349ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 350ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int i; 351ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 352ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov GetUInt16(sp); 353ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->GlyphCount = GetUInt16(sp); 354ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(rec->GlyphCount <= 0) { 355ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 356ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 357ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->GlyphArray = new TT_uint16_t[rec->GlyphCount]; 358ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < rec->GlyphCount; i++) { 359ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->GlyphArray[i] = GetUInt16(sp); 360ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 361ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 362ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseCoverageFormat2(FT_Bytes raw, TCoverageFormat2 *rec) 363ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 364ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int i; 365ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 366ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov GetUInt16(sp); 367ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->RangeCount = GetUInt16(sp); 368ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(rec->RangeCount <= 0) { 369ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 370ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 371ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->RangeRecord = new TRangeRecord[rec->RangeCount]; 372ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < rec->RangeCount; i++) { 373ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->RangeRecord[i].Start = GetUInt16(sp); 374ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->RangeRecord[i].End = GetUInt16(sp); 375ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->RangeRecord[i].StartCoverageIndex = GetUInt16(sp); 376ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 377ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 378ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseSingleSubst(FT_Bytes raw, TSubTableBase **rec) 379ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 380ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 381ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint16_t Format = GetUInt16(sp); 382ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov switch(Format) { 383ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov case 1: 384ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov *rec = new TSingleSubstFormat1(); 385ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseSingleSubstFormat1(raw, (TSingleSubstFormat1*)*rec); 386ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov break; 387ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov case 2: 388ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov *rec = new TSingleSubstFormat2(); 389ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseSingleSubstFormat2(raw, (TSingleSubstFormat2*)*rec); 390ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov break; 391ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 392ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 393ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseSingleSubstFormat1(FT_Bytes raw, TSingleSubstFormat1 *rec) 394ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 395ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 396ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov GetUInt16(sp); 397ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint16_t offset = GetUInt16(sp); 398ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseCoverage( 399ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &raw[offset], 400ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &rec->Coverage); 401ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->DeltaGlyphID = GetInt16(sp); 402ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 403ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganovvoid CFX_CTTGSUBTable::ParseSingleSubstFormat2(FT_Bytes raw, TSingleSubstFormat2 *rec) 404ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 405ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int i; 406ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov FT_Bytes sp = raw; 407ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov GetUInt16(sp); 408ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov TT_uint16_t offset = GetUInt16(sp); 409ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov ParseCoverage( 410ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &raw[offset], 411ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov &rec->Coverage); 412ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->GlyphCount = GetUInt16(sp); 413ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if(rec->GlyphCount <= 0) { 414ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return; 415ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 416ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->Substitute = new TT_uint16_t[rec->GlyphCount]; 417ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov for(i = 0; i < rec->GlyphCount; i++) { 418ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov rec->Substitute[i] = GetUInt16(sp); 419ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 420ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 421ee451cb395940862dad63c85adfe8f2fd55e864cSvet GanovFX_BOOL CFX_GSUBTable::GetVerticalGlyph(FX_DWORD glyphnum, FX_DWORD* vglyphnum) 422ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 423ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return m_GsubImp.GetVerticalGlyph(glyphnum, vglyphnum); 424ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 425ee451cb395940862dad63c85adfe8f2fd55e864cSvet GanovIFX_GSUBTable* FXGE_CreateGSUBTable(CFX_Font* pFont) 426ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov{ 427ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (!pFont) { 428ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return NULL; 429ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 430ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (NULL == pFont->m_pGsubData) { 431ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov unsigned long length = 0; 432ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int error = FXFT_Load_Sfnt_Table(pFont->m_Face, FT_MAKE_TAG('G', 'S', 'U', 'B'), 0, NULL, &length); 433ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (!error) { 434ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov pFont->m_pGsubData = (unsigned char*)FX_Alloc(FX_BYTE, length); 435ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 436ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (!pFont->m_pGsubData) { 437ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return NULL; 438ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 439ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 440ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov int error = FXFT_Load_Sfnt_Table(pFont->m_Face, FT_MAKE_TAG('G', 'S', 'U', 'B'), 0, pFont->m_pGsubData, NULL); 441ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (!error && pFont->m_pGsubData) { 442ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov CFX_GSUBTable* pGsubTable = FX_NEW CFX_GSUBTable; 443ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (!pGsubTable) { 444ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return NULL; 445ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 446ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov if (pGsubTable->m_GsubImp.LoadGSUBTable((FT_Bytes)pFont->m_pGsubData)) { 447ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return pGsubTable; 448ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 449ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov delete pGsubTable; 450ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov } 451ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov return NULL; 452ee451cb395940862dad63c85adfe8f2fd55e864cSvet Ganov} 453