OLD | NEW |
1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #include "../../../include/fxge/fx_ge.h" | 7 #include "../../../include/fxge/fx_ge.h" |
8 #include "../../../include/fxge/fx_freetype.h" | 8 #include "../../../include/fxge/fx_freetype.h" |
9 #include "ttgsubtable.h" | 9 #include "ttgsubtable.h" |
10 CFX_GlyphMap::CFX_GlyphMap() | 10 CFX_GlyphMap::CFX_GlyphMap() { |
11 { | 11 } |
12 } | 12 CFX_GlyphMap::~CFX_GlyphMap() { |
13 CFX_GlyphMap::~CFX_GlyphMap() | |
14 { | |
15 } | 13 } |
16 extern "C" { | 14 extern "C" { |
17 static int _CompareInt(const void* p1, const void* p2) | 15 static int _CompareInt(const void* p1, const void* p2) { |
18 { | 16 return (*(FX_DWORD*)p1) - (*(FX_DWORD*)p2); |
19 return (*(FX_DWORD*)p1) - (*(FX_DWORD*)p2); | 17 } |
20 } | |
21 }; | 18 }; |
22 struct _IntPair { | 19 struct _IntPair { |
23 FX_INT32 key; | 20 FX_INT32 key; |
24 FX_INT32 value; | 21 FX_INT32 value; |
25 }; | 22 }; |
26 void CFX_GlyphMap::SetAt(int key, int value) | 23 void CFX_GlyphMap::SetAt(int key, int value) { |
27 { | 24 FX_DWORD count = m_Buffer.GetSize() / sizeof(_IntPair); |
28 FX_DWORD count = m_Buffer.GetSize() / sizeof(_IntPair); | 25 _IntPair* buf = (_IntPair*)m_Buffer.GetBuffer(); |
29 _IntPair* buf = (_IntPair*)m_Buffer.GetBuffer(); | 26 _IntPair pair = { key, value }; |
30 _IntPair pair = {key, value}; | 27 if (count == 0 || key > buf[count - 1].key) { |
31 if (count == 0 || key > buf[count - 1].key) { | 28 m_Buffer.AppendBlock(&pair, sizeof(_IntPair)); |
32 m_Buffer.AppendBlock(&pair, sizeof(_IntPair)); | 29 return; |
33 return; | 30 } |
34 } | 31 int low = 0, high = count - 1; |
35 int low = 0, high = count - 1; | 32 while (low <= high) { |
36 while (low <= high) { | 33 int mid = (low + high) / 2; |
37 int mid = (low + high) / 2; | 34 if (buf[mid].key < key) { |
38 if (buf[mid].key < key) { | 35 low = mid + 1; |
39 low = mid + 1; | 36 } else if (buf[mid].key > key) { |
40 } else if (buf[mid].key > key) { | 37 high = mid - 1; |
41 high = mid - 1; | 38 } else { |
42 } else { | 39 buf[mid].value = value; |
43 buf[mid].value = value; | 40 return; |
44 return; | 41 } |
45 } | 42 } |
46 } | 43 m_Buffer.InsertBlock(low * sizeof(_IntPair), &pair, sizeof(_IntPair)); |
47 m_Buffer.InsertBlock(low * sizeof(_IntPair), &pair, sizeof(_IntPair)); | 44 } |
48 } | 45 FX_BOOL CFX_GlyphMap::Lookup(int key, int& value) { |
49 FX_BOOL CFX_GlyphMap::Lookup(int key, int &value) | 46 FX_LPVOID pResult = FXSYS_bsearch(&key, |
50 { | 47 m_Buffer.GetBuffer(), |
51 FX_LPVOID pResult = FXSYS_bsearch(&key, m_Buffer.GetBuffer(), m_Buffer.GetSi
ze() / sizeof(_IntPair), | 48 m_Buffer.GetSize() / sizeof(_IntPair), |
52 sizeof(_IntPair), _CompareInt); | 49 sizeof(_IntPair), |
53 if (pResult == NULL) { | 50 _CompareInt); |
54 return FALSE; | 51 if (pResult == NULL) { |
55 } | 52 return FALSE; |
56 value = ((FX_DWORD*)pResult)[1]; | 53 } |
57 return TRUE; | 54 value = ((FX_DWORD*)pResult)[1]; |
58 } | 55 return TRUE; |
59 bool CFX_CTTGSUBTable::LoadGSUBTable(FT_Bytes gsub) | 56 } |
60 { | 57 bool CFX_CTTGSUBTable::LoadGSUBTable(FT_Bytes gsub) { |
61 header.Version = gsub[0] << 24 | gsub[1] << 16 | gsub[2] << 8 | gsub[3]; | 58 header.Version = gsub[0] << 24 | gsub[1] << 16 | gsub[2] << 8 | gsub[3]; |
62 if(header.Version != 0x00010000) { | 59 if (header.Version != 0x00010000) { |
63 return false; | 60 return false; |
64 } | 61 } |
65 header.ScriptList = gsub[4] << 8 | gsub[5]; | 62 header.ScriptList = gsub[4] << 8 | gsub[5]; |
66 header.FeatureList = gsub[6] << 8 | gsub[7]; | 63 header.FeatureList = gsub[6] << 8 | gsub[7]; |
67 header.LookupList = gsub[8] << 8 | gsub[9]; | 64 header.LookupList = gsub[8] << 8 | gsub[9]; |
68 return Parse( | 65 return Parse(&gsub[header.ScriptList], |
69 &gsub[header.ScriptList], | |
70 &gsub[header.FeatureList], | 66 &gsub[header.FeatureList], |
71 &gsub[header.LookupList]); | 67 &gsub[header.LookupList]); |
72 } | 68 } |
73 bool CFX_CTTGSUBTable::GetVerticalGlyph(TT_uint32_t glyphnum, TT_uint32_t *vglyp
hnum) | 69 bool CFX_CTTGSUBTable::GetVerticalGlyph(TT_uint32_t glyphnum, |
74 { | 70 TT_uint32_t* vglyphnum) { |
75 TT_uint32_t tag[] = { | 71 TT_uint32_t tag[] = { |
76 (TT_uint8_t)'v' << 24 | | 72 (TT_uint8_t)'v' << 24 | (TT_uint8_t)'r' << 16 | (TT_uint8_t)'t' << 8 | |
77 (TT_uint8_t)'r' << 16 | | |
78 (TT_uint8_t)'t' << 8 | | |
79 (TT_uint8_t)'2', | 73 (TT_uint8_t)'2', |
80 (TT_uint8_t)'v' << 24 | | 74 (TT_uint8_t)'v' << 24 | (TT_uint8_t)'e' << 16 | (TT_uint8_t)'r' << 8 | |
81 (TT_uint8_t)'e' << 16 | | |
82 (TT_uint8_t)'r' << 8 | | |
83 (TT_uint8_t)'t', | 75 (TT_uint8_t)'t', |
84 }; | 76 }; |
85 if (!m_bFeautureMapLoad) { | 77 if (!m_bFeautureMapLoad) { |
86 for (int i = 0; i < ScriptList.ScriptCount; i++) { | 78 for (int i = 0; i < ScriptList.ScriptCount; i++) { |
87 for (int j = 0; j <»(ScriptList.ScriptRecord + i)->Script.LangSysCou
nt; ++j) { | 79 for (int j = 0; j < (ScriptList.ScriptRecord + i)->Script.LangSysCount; |
88 for (int k = 0; k < ((ScriptList.ScriptRecord + i)->Script.LangS
ysRecord + j)->LangSys.FeatureCount; ++k) { | 80 ++j) { |
89 FX_DWORD index = *(((ScriptList.ScriptRecord + i)->Script.La
ngSysRecord + j)->LangSys.FeatureIndex + k); | 81 for (int k = 0; |
90 if (FeatureList.FeatureRecord[index].FeatureTag == tag[0] ||
FeatureList.FeatureRecord[index].FeatureTag == tag[1]) { | 82 k < ((ScriptList.ScriptRecord + i)->Script.LangSysRecord + j) |
91 FX_DWORD value; | 83 ->LangSys.FeatureCount; |
92 if (!m_featureMap.Lookup(index, value)) { | 84 ++k) { |
93 m_featureMap.SetAt(index, index); | 85 FX_DWORD index = |
94 } | 86 *(((ScriptList.ScriptRecord + i)->Script.LangSysRecord + j) |
95 } | 87 ->LangSys.FeatureIndex + |
96 } | 88 k); |
| 89 if (FeatureList.FeatureRecord[index].FeatureTag == tag[0] || |
| 90 FeatureList.FeatureRecord[index].FeatureTag == tag[1]) { |
| 91 FX_DWORD value; |
| 92 if (!m_featureMap.Lookup(index, value)) { |
| 93 m_featureMap.SetAt(index, index); |
97 } | 94 } |
98 } | 95 } |
99 if (!m_featureMap.GetStartPosition()) { | 96 } |
100 for (int i = 0; i < FeatureList.FeatureCount; i ++) { | 97 } |
101 if (FeatureList.FeatureRecord[i].FeatureTag == tag[0] || Feature
List.FeatureRecord[i].FeatureTag == tag[1]) { | 98 } |
102 FX_DWORD value; | 99 if (!m_featureMap.GetStartPosition()) { |
103 if (!m_featureMap.Lookup(i, value)) { | 100 for (int i = 0; i < FeatureList.FeatureCount; i++) { |
104 m_featureMap.SetAt(i, i); | 101 if (FeatureList.FeatureRecord[i].FeatureTag == tag[0] || |
105 } | 102 FeatureList.FeatureRecord[i].FeatureTag == tag[1]) { |
106 } | 103 FX_DWORD value; |
107 } | 104 if (!m_featureMap.Lookup(i, value)) { |
108 } | 105 m_featureMap.SetAt(i, i); |
109 m_bFeautureMapLoad = TRUE; | 106 } |
110 } | 107 } |
111 FX_POSITION pos = m_featureMap.GetStartPosition(); | 108 } |
112 while (pos) { | 109 } |
113 FX_DWORD index, value; | 110 m_bFeautureMapLoad = TRUE; |
114 m_featureMap.GetNextAssoc(pos, index, value); | 111 } |
115 if(GetVerticalGlyphSub(glyphnum, vglyphnum,» &FeatureList.FeatureReco
rd[value].Feature)) { | 112 FX_POSITION pos = m_featureMap.GetStartPosition(); |
116 return true; | 113 while (pos) { |
117 } | 114 FX_DWORD index, value; |
118 } | 115 m_featureMap.GetNextAssoc(pos, index, value); |
119 return false; | 116 if (GetVerticalGlyphSub( |
120 } | 117 glyphnum, vglyphnum, &FeatureList.FeatureRecord[value].Feature)) { |
121 bool CFX_CTTGSUBTable::GetVerticalGlyphSub( | 118 return true; |
122 TT_uint32_t glyphnum, | 119 } |
123 TT_uint32_t *vglyphnum, | 120 } |
124 struct TFeature *Feature) | 121 return false; |
125 { | 122 } |
126 for(int i = 0; i < Feature->LookupCount; i++) { | 123 bool CFX_CTTGSUBTable::GetVerticalGlyphSub(TT_uint32_t glyphnum, |
127 int index = Feature->LookupListIndex[i]; | 124 TT_uint32_t* vglyphnum, |
128 if(index < 0 || LookupList.LookupCount < index) { | 125 struct TFeature* Feature) { |
129 continue; | 126 for (int i = 0; i < Feature->LookupCount; i++) { |
130 } | 127 int index = Feature->LookupListIndex[i]; |
131 if(LookupList.Lookup[index].LookupType == 1) { | 128 if (index < 0 || LookupList.LookupCount < index) { |
132 if(GetVerticalGlyphSub2( | 129 continue; |
133 glyphnum, | 130 } |
134 vglyphnum, | 131 if (LookupList.Lookup[index].LookupType == 1) { |
135 &LookupList.Lookup[index])) { | 132 if (GetVerticalGlyphSub2( |
136 return true; | 133 glyphnum, vglyphnum, &LookupList.Lookup[index])) { |
137 } | 134 return true; |
138 } | 135 } |
139 } | 136 } |
140 return false; | 137 } |
141 } | 138 return false; |
142 bool CFX_CTTGSUBTable::GetVerticalGlyphSub2( | 139 } |
143 TT_uint32_t glyphnum, | 140 bool CFX_CTTGSUBTable::GetVerticalGlyphSub2(TT_uint32_t glyphnum, |
144 TT_uint32_t *vglyphnum, | 141 TT_uint32_t* vglyphnum, |
145 struct TLookup *Lookup) | 142 struct TLookup* Lookup) { |
146 { | 143 for (int i = 0; i < Lookup->SubTableCount; i++) { |
147 for(int i = 0; i < Lookup->SubTableCount; i++) { | 144 switch (Lookup->SubTable[i]->SubstFormat) { |
148 switch(Lookup->SubTable[i]->SubstFormat) { | 145 case 1: { |
149 case 1: { | 146 TSingleSubstFormat1* tbl1 = (TSingleSubstFormat1*)Lookup->SubTable[i]; |
150 TSingleSubstFormat1 *tbl1 = (TSingleSubstFormat1*)Lookup->Su
bTable[i]; | 147 if (GetCoverageIndex(tbl1->Coverage, glyphnum) >= 0) { |
151 if(GetCoverageIndex(tbl1->Coverage, glyphnum) >= 0) { | 148 *vglyphnum = glyphnum + tbl1->DeltaGlyphID; |
152 *vglyphnum = glyphnum + tbl1->DeltaGlyphID; | 149 return true; |
153 return true; | 150 } |
154 } | 151 break; |
155 break; | 152 } |
156 } | 153 case 2: { |
157 case 2: { | 154 TSingleSubstFormat2* tbl2 = (TSingleSubstFormat2*)Lookup->SubTable[i]; |
158 TSingleSubstFormat2 *tbl2 = (TSingleSubstFormat2*)Lookup->Su
bTable[i]; | 155 int index = -1; |
159 int index = -1; | 156 index = GetCoverageIndex(tbl2->Coverage, glyphnum); |
160 index = GetCoverageIndex(tbl2->Coverage, glyphnum); | 157 if (0 <= index && index < tbl2->GlyphCount) { |
161 if(0 <= index && index < tbl2->GlyphCount) { | 158 *vglyphnum = tbl2->Substitute[index]; |
162 *vglyphnum = tbl2->Substitute[index]; | 159 return true; |
163 return true; | 160 } |
164 } | 161 break; |
165 break; | 162 } |
166 } | 163 } |
167 } | 164 } |
168 } | 165 return false; |
169 return false; | 166 } |
170 } | 167 int CFX_CTTGSUBTable::GetCoverageIndex(struct TCoverageFormatBase* Coverage, |
171 int CFX_CTTGSUBTable::GetCoverageIndex(struct TCoverageFormatBase *Coverage, TT_
uint32_t g) | 168 TT_uint32_t g) { |
172 { | 169 int i = 0; |
173 int i = 0; | 170 if (Coverage == NULL) { |
174 if(Coverage == NULL) { | |
175 return -1; | |
176 } | |
177 switch(Coverage->CoverageFormat) { | |
178 case 1: { | |
179 TCoverageFormat1 *c1 = (TCoverageFormat1*)Coverage; | |
180 for(i = 0; i < c1->GlyphCount; i++) { | |
181 if((TT_uint32_t)c1->GlyphArray[i] == g) { | |
182 return i; | |
183 } | |
184 } | |
185 return -1; | |
186 } | |
187 case 2: { | |
188 TCoverageFormat2 *c2 = (TCoverageFormat2*)Coverage; | |
189 for(i = 0; i < c2->RangeCount; i++) { | |
190 TT_uint32_t s = c2->RangeRecord[i].Start; | |
191 TT_uint32_t e = c2->RangeRecord[i].End; | |
192 TT_uint32_t si = c2->RangeRecord[i].StartCoverageIndex; | |
193 if (s <= g && g <= e) { | |
194 return si + g - s; | |
195 } | |
196 } | |
197 return -1; | |
198 } | |
199 } | |
200 return -1; | 171 return -1; |
201 } | 172 } |
202 bool CFX_CTTGSUBTable::Parse( | 173 switch (Coverage->CoverageFormat) { |
203 FT_Bytes scriptlist, | 174 case 1: { |
204 FT_Bytes featurelist, | 175 TCoverageFormat1* c1 = (TCoverageFormat1*)Coverage; |
205 FT_Bytes lookuplist) | 176 for (i = 0; i < c1->GlyphCount; i++) { |
206 { | 177 if ((TT_uint32_t)c1->GlyphArray[i] == g) { |
207 ParseScriptList(scriptlist, &ScriptList); | 178 return i; |
208 ParseFeatureList(featurelist, &FeatureList); | 179 } |
209 ParseLookupList(lookuplist, &LookupList); | 180 } |
210 return true; | 181 return -1; |
211 } | 182 } |
212 void CFX_CTTGSUBTable::ParseScriptList(FT_Bytes raw, struct TScriptList *rec) | 183 case 2: { |
213 { | 184 TCoverageFormat2* c2 = (TCoverageFormat2*)Coverage; |
214 int i; | 185 for (i = 0; i < c2->RangeCount; i++) { |
215 FT_Bytes sp = raw; | 186 TT_uint32_t s = c2->RangeRecord[i].Start; |
216 rec->ScriptCount = GetUInt16(sp); | 187 TT_uint32_t e = c2->RangeRecord[i].End; |
217 if(rec->ScriptCount <= 0) { | 188 TT_uint32_t si = c2->RangeRecord[i].StartCoverageIndex; |
218 return; | 189 if (s <= g && g <= e) { |
219 } | 190 return si + g - s; |
220 rec->ScriptRecord = new struct TScriptRecord[rec->ScriptCount]; | 191 } |
221 for(i = 0; i < rec->ScriptCount; i++) { | 192 } |
222 rec->ScriptRecord[i].ScriptTag = GetUInt32(sp); | 193 return -1; |
223 TT_uint16_t offset = GetUInt16(sp); | 194 } |
224 ParseScript( | 195 } |
225 &raw[offset], | 196 return -1; |
226 &rec->ScriptRecord[i].Script); | 197 } |
227 } | 198 bool CFX_CTTGSUBTable::Parse(FT_Bytes scriptlist, |
228 } | 199 FT_Bytes featurelist, |
229 void CFX_CTTGSUBTable::ParseScript(FT_Bytes raw, struct TScript *rec) | 200 FT_Bytes lookuplist) { |
230 { | 201 ParseScriptList(scriptlist, &ScriptList); |
231 int i; | 202 ParseFeatureList(featurelist, &FeatureList); |
232 FT_Bytes sp = raw; | 203 ParseLookupList(lookuplist, &LookupList); |
233 rec->DefaultLangSys = GetUInt16(sp); | 204 return true; |
234 rec->LangSysCount = GetUInt16(sp); | 205 } |
235 if(rec->LangSysCount <= 0) { | 206 void CFX_CTTGSUBTable::ParseScriptList(FT_Bytes raw, struct TScriptList* rec) { |
236 return; | 207 int i; |
237 } | 208 FT_Bytes sp = raw; |
238 rec->LangSysRecord = new struct TLangSysRecord[rec->LangSysCount]; | 209 rec->ScriptCount = GetUInt16(sp); |
239 for(i = 0; i < rec->LangSysCount; i++) { | 210 if (rec->ScriptCount <= 0) { |
240 rec->LangSysRecord[i].LangSysTag = GetUInt32(sp); | 211 return; |
241 TT_uint16_t offset = GetUInt16(sp); | 212 } |
242 ParseLangSys( | 213 rec->ScriptRecord = new struct TScriptRecord[rec->ScriptCount]; |
243 &raw[offset], | 214 for (i = 0; i < rec->ScriptCount; i++) { |
244 &rec->LangSysRecord[i].LangSys); | 215 rec->ScriptRecord[i].ScriptTag = GetUInt32(sp); |
245 } | |
246 } | |
247 void CFX_CTTGSUBTable::ParseLangSys(FT_Bytes raw, struct TLangSys *rec) | |
248 { | |
249 FT_Bytes sp = raw; | |
250 rec->LookupOrder = GetUInt16(sp); | |
251 rec->ReqFeatureIndex = GetUInt16(sp); | |
252 rec->FeatureCount = GetUInt16(sp); | |
253 if(rec->FeatureCount <= 0) { | |
254 return; | |
255 } | |
256 rec->FeatureIndex = new TT_uint16_t[rec->FeatureCount]; | |
257 FXSYS_memset32(rec->FeatureIndex, 0, sizeof(TT_uint16_t) * rec->FeatureCount
); | |
258 for (int i = 0; i < rec->FeatureCount; ++i) { | |
259 rec->FeatureIndex[i] = GetUInt16(sp); | |
260 } | |
261 } | |
262 void CFX_CTTGSUBTable::ParseFeatureList(FT_Bytes raw, TFeatureList *rec) | |
263 { | |
264 int i; | |
265 FT_Bytes sp = raw; | |
266 rec->FeatureCount = GetUInt16(sp); | |
267 if(rec->FeatureCount <= 0) { | |
268 return; | |
269 } | |
270 rec->FeatureRecord = new struct TFeatureRecord[rec->FeatureCount]; | |
271 for(i = 0; i < rec->FeatureCount; i++) { | |
272 rec->FeatureRecord[i].FeatureTag = GetUInt32(sp); | |
273 TT_uint16_t offset = GetUInt16(sp); | |
274 ParseFeature( | |
275 &raw[offset], | |
276 &rec->FeatureRecord[i].Feature); | |
277 } | |
278 } | |
279 void CFX_CTTGSUBTable::ParseFeature(FT_Bytes raw, TFeature *rec) | |
280 { | |
281 int i; | |
282 FT_Bytes sp = raw; | |
283 rec->FeatureParams = GetUInt16(sp); | |
284 rec->LookupCount = GetUInt16(sp); | |
285 if(rec->LookupCount <= 0) { | |
286 return; | |
287 } | |
288 rec->LookupListIndex = new TT_uint16_t[rec->LookupCount]; | |
289 for(i = 0; i < rec->LookupCount; i++) { | |
290 rec->LookupListIndex[i] = GetUInt16(sp); | |
291 } | |
292 } | |
293 void CFX_CTTGSUBTable::ParseLookupList(FT_Bytes raw, TLookupList *rec) | |
294 { | |
295 int i; | |
296 FT_Bytes sp = raw; | |
297 rec->LookupCount = GetUInt16(sp); | |
298 if(rec->LookupCount <= 0) { | |
299 return; | |
300 } | |
301 rec->Lookup = new struct TLookup[rec->LookupCount]; | |
302 for(i = 0; i < rec->LookupCount; i++) { | |
303 TT_uint16_t offset = GetUInt16(sp); | |
304 ParseLookup( | |
305 &raw[offset], | |
306 &rec->Lookup[i]); | |
307 } | |
308 } | |
309 void CFX_CTTGSUBTable::ParseLookup(FT_Bytes raw, TLookup *rec) | |
310 { | |
311 int i; | |
312 FT_Bytes sp = raw; | |
313 rec->LookupType = GetUInt16(sp); | |
314 rec->LookupFlag = GetUInt16(sp); | |
315 rec->SubTableCount = GetUInt16(sp); | |
316 if(rec->SubTableCount <= 0) { | |
317 return; | |
318 } | |
319 rec->SubTable = new struct TSubTableBase*[rec->SubTableCount]; | |
320 for(i = 0; i < rec->SubTableCount; i++) { | |
321 rec->SubTable[i] = NULL; | |
322 } | |
323 if(rec->LookupType != 1) { | |
324 return; | |
325 } | |
326 for(i = 0; i < rec->SubTableCount; i++) { | |
327 TT_uint16_t offset = GetUInt16(sp); | |
328 ParseSingleSubst( | |
329 &raw[offset], | |
330 &rec->SubTable[i]); | |
331 } | |
332 } | |
333 void CFX_CTTGSUBTable::ParseCoverage(FT_Bytes raw, TCoverageFormatBase **rec) | |
334 { | |
335 FT_Bytes sp = raw; | |
336 TT_uint16_t Format = GetUInt16(sp); | |
337 switch(Format) { | |
338 case 1: | |
339 *rec = new TCoverageFormat1(); | |
340 ParseCoverageFormat1(raw, (TCoverageFormat1*)*rec); | |
341 break; | |
342 case 2: | |
343 *rec = new TCoverageFormat2(); | |
344 ParseCoverageFormat2(raw, (TCoverageFormat2*)*rec); | |
345 break; | |
346 } | |
347 } | |
348 void CFX_CTTGSUBTable::ParseCoverageFormat1(FT_Bytes raw, TCoverageFormat1 *rec) | |
349 { | |
350 int i; | |
351 FT_Bytes sp = raw; | |
352 GetUInt16(sp); | |
353 rec->GlyphCount = GetUInt16(sp); | |
354 if(rec->GlyphCount <= 0) { | |
355 return; | |
356 } | |
357 rec->GlyphArray = new TT_uint16_t[rec->GlyphCount]; | |
358 for(i = 0; i < rec->GlyphCount; i++) { | |
359 rec->GlyphArray[i] = GetUInt16(sp); | |
360 } | |
361 } | |
362 void CFX_CTTGSUBTable::ParseCoverageFormat2(FT_Bytes raw, TCoverageFormat2 *rec) | |
363 { | |
364 int i; | |
365 FT_Bytes sp = raw; | |
366 GetUInt16(sp); | |
367 rec->RangeCount = GetUInt16(sp); | |
368 if(rec->RangeCount <= 0) { | |
369 return; | |
370 } | |
371 rec->RangeRecord = new TRangeRecord[rec->RangeCount]; | |
372 for(i = 0; i < rec->RangeCount; i++) { | |
373 rec->RangeRecord[i].Start = GetUInt16(sp); | |
374 rec->RangeRecord[i].End = GetUInt16(sp); | |
375 rec->RangeRecord[i].StartCoverageIndex = GetUInt16(sp); | |
376 } | |
377 } | |
378 void CFX_CTTGSUBTable::ParseSingleSubst(FT_Bytes raw, TSubTableBase **rec) | |
379 { | |
380 FT_Bytes sp = raw; | |
381 TT_uint16_t Format = GetUInt16(sp); | |
382 switch(Format) { | |
383 case 1: | |
384 *rec = new TSingleSubstFormat1(); | |
385 ParseSingleSubstFormat1(raw, (TSingleSubstFormat1*)*rec); | |
386 break; | |
387 case 2: | |
388 *rec = new TSingleSubstFormat2(); | |
389 ParseSingleSubstFormat2(raw, (TSingleSubstFormat2*)*rec); | |
390 break; | |
391 } | |
392 } | |
393 void CFX_CTTGSUBTable::ParseSingleSubstFormat1(FT_Bytes raw, TSingleSubstFormat1
*rec) | |
394 { | |
395 FT_Bytes sp = raw; | |
396 GetUInt16(sp); | |
397 TT_uint16_t offset = GetUInt16(sp); | 216 TT_uint16_t offset = GetUInt16(sp); |
398 ParseCoverage( | 217 ParseScript(&raw[offset], &rec->ScriptRecord[i].Script); |
399 &raw[offset], | 218 } |
400 &rec->Coverage); | 219 } |
401 rec->DeltaGlyphID = GetInt16(sp); | 220 void CFX_CTTGSUBTable::ParseScript(FT_Bytes raw, struct TScript* rec) { |
402 } | 221 int i; |
403 void CFX_CTTGSUBTable::ParseSingleSubstFormat2(FT_Bytes raw, TSingleSubstFormat2
*rec) | 222 FT_Bytes sp = raw; |
404 { | 223 rec->DefaultLangSys = GetUInt16(sp); |
405 int i; | 224 rec->LangSysCount = GetUInt16(sp); |
406 FT_Bytes sp = raw; | 225 if (rec->LangSysCount <= 0) { |
407 GetUInt16(sp); | 226 return; |
| 227 } |
| 228 rec->LangSysRecord = new struct TLangSysRecord[rec->LangSysCount]; |
| 229 for (i = 0; i < rec->LangSysCount; i++) { |
| 230 rec->LangSysRecord[i].LangSysTag = GetUInt32(sp); |
408 TT_uint16_t offset = GetUInt16(sp); | 231 TT_uint16_t offset = GetUInt16(sp); |
409 ParseCoverage( | 232 ParseLangSys(&raw[offset], &rec->LangSysRecord[i].LangSys); |
410 &raw[offset], | 233 } |
411 &rec->Coverage); | 234 } |
412 rec->GlyphCount = GetUInt16(sp); | 235 void CFX_CTTGSUBTable::ParseLangSys(FT_Bytes raw, struct TLangSys* rec) { |
413 if(rec->GlyphCount <= 0) { | 236 FT_Bytes sp = raw; |
414 return; | 237 rec->LookupOrder = GetUInt16(sp); |
415 } | 238 rec->ReqFeatureIndex = GetUInt16(sp); |
416 rec->Substitute = new TT_uint16_t[rec->GlyphCount]; | 239 rec->FeatureCount = GetUInt16(sp); |
417 for(i = 0; i < rec->GlyphCount; i++) { | 240 if (rec->FeatureCount <= 0) { |
418 rec->Substitute[i] = GetUInt16(sp); | 241 return; |
419 } | 242 } |
420 } | 243 rec->FeatureIndex = new TT_uint16_t[rec->FeatureCount]; |
421 FX_BOOL CFX_GSUBTable::GetVerticalGlyph(FX_DWORD glyphnum, FX_DWORD* vglyphnum) | 244 FXSYS_memset32(rec->FeatureIndex, 0, sizeof(TT_uint16_t) * rec->FeatureCount); |
422 { | 245 for (int i = 0; i < rec->FeatureCount; ++i) { |
423 return m_GsubImp.GetVerticalGlyph(glyphnum, vglyphnum); | 246 rec->FeatureIndex[i] = GetUInt16(sp); |
424 } | 247 } |
425 IFX_GSUBTable* FXGE_CreateGSUBTable(CFX_Font* pFont) | 248 } |
426 { | 249 void CFX_CTTGSUBTable::ParseFeatureList(FT_Bytes raw, TFeatureList* rec) { |
427 if (!pFont) { | 250 int i; |
428 return NULL; | 251 FT_Bytes sp = raw; |
429 } | 252 rec->FeatureCount = GetUInt16(sp); |
430 if (NULL == pFont->m_pGsubData) { | 253 if (rec->FeatureCount <= 0) { |
431 unsigned long length = 0; | 254 return; |
432 int error = FXFT_Load_Sfnt_Table(pFont->m_Face, FT_MAKE_TAG('G', 'S', 'U
', 'B'), 0, NULL, &length); | 255 } |
433 if (!error) { | 256 rec->FeatureRecord = new struct TFeatureRecord[rec->FeatureCount]; |
434 pFont->m_pGsubData = (unsigned char*)FX_Alloc(FX_BYTE, length); | 257 for (i = 0; i < rec->FeatureCount; i++) { |
435 } | 258 rec->FeatureRecord[i].FeatureTag = GetUInt32(sp); |
436 if (!pFont->m_pGsubData) { | 259 TT_uint16_t offset = GetUInt16(sp); |
437 return NULL; | 260 ParseFeature(&raw[offset], &rec->FeatureRecord[i].Feature); |
438 } | 261 } |
439 } | 262 } |
440 int error = FXFT_Load_Sfnt_Table(pFont->m_Face, FT_MAKE_TAG('G', 'S', 'U', '
B'), 0, pFont->m_pGsubData, NULL); | 263 void CFX_CTTGSUBTable::ParseFeature(FT_Bytes raw, TFeature* rec) { |
441 if (!error && pFont->m_pGsubData) { | 264 int i; |
442 CFX_GSUBTable* pGsubTable = FX_NEW CFX_GSUBTable; | 265 FT_Bytes sp = raw; |
443 if (!pGsubTable) { | 266 rec->FeatureParams = GetUInt16(sp); |
444 return NULL; | 267 rec->LookupCount = GetUInt16(sp); |
445 } | 268 if (rec->LookupCount <= 0) { |
446 if (pGsubTable->m_GsubImp.LoadGSUBTable((FT_Bytes)pFont->m_pGsubData)) { | 269 return; |
447 return pGsubTable; | 270 } |
448 } | 271 rec->LookupListIndex = new TT_uint16_t[rec->LookupCount]; |
449 delete pGsubTable; | 272 for (i = 0; i < rec->LookupCount; i++) { |
450 } | 273 rec->LookupListIndex[i] = GetUInt16(sp); |
| 274 } |
| 275 } |
| 276 void CFX_CTTGSUBTable::ParseLookupList(FT_Bytes raw, TLookupList* rec) { |
| 277 int i; |
| 278 FT_Bytes sp = raw; |
| 279 rec->LookupCount = GetUInt16(sp); |
| 280 if (rec->LookupCount <= 0) { |
| 281 return; |
| 282 } |
| 283 rec->Lookup = new struct TLookup[rec->LookupCount]; |
| 284 for (i = 0; i < rec->LookupCount; i++) { |
| 285 TT_uint16_t offset = GetUInt16(sp); |
| 286 ParseLookup(&raw[offset], &rec->Lookup[i]); |
| 287 } |
| 288 } |
| 289 void CFX_CTTGSUBTable::ParseLookup(FT_Bytes raw, TLookup* rec) { |
| 290 int i; |
| 291 FT_Bytes sp = raw; |
| 292 rec->LookupType = GetUInt16(sp); |
| 293 rec->LookupFlag = GetUInt16(sp); |
| 294 rec->SubTableCount = GetUInt16(sp); |
| 295 if (rec->SubTableCount <= 0) { |
| 296 return; |
| 297 } |
| 298 rec->SubTable = new struct TSubTableBase* [rec->SubTableCount]; |
| 299 for (i = 0; i < rec->SubTableCount; i++) { |
| 300 rec->SubTable[i] = NULL; |
| 301 } |
| 302 if (rec->LookupType != 1) { |
| 303 return; |
| 304 } |
| 305 for (i = 0; i < rec->SubTableCount; i++) { |
| 306 TT_uint16_t offset = GetUInt16(sp); |
| 307 ParseSingleSubst(&raw[offset], &rec->SubTable[i]); |
| 308 } |
| 309 } |
| 310 void CFX_CTTGSUBTable::ParseCoverage(FT_Bytes raw, TCoverageFormatBase** rec) { |
| 311 FT_Bytes sp = raw; |
| 312 TT_uint16_t Format = GetUInt16(sp); |
| 313 switch (Format) { |
| 314 case 1: |
| 315 *rec = new TCoverageFormat1(); |
| 316 ParseCoverageFormat1(raw, (TCoverageFormat1*)*rec); |
| 317 break; |
| 318 case 2: |
| 319 *rec = new TCoverageFormat2(); |
| 320 ParseCoverageFormat2(raw, (TCoverageFormat2*)*rec); |
| 321 break; |
| 322 } |
| 323 } |
| 324 void CFX_CTTGSUBTable::ParseCoverageFormat1(FT_Bytes raw, |
| 325 TCoverageFormat1* rec) { |
| 326 int i; |
| 327 FT_Bytes sp = raw; |
| 328 GetUInt16(sp); |
| 329 rec->GlyphCount = GetUInt16(sp); |
| 330 if (rec->GlyphCount <= 0) { |
| 331 return; |
| 332 } |
| 333 rec->GlyphArray = new TT_uint16_t[rec->GlyphCount]; |
| 334 for (i = 0; i < rec->GlyphCount; i++) { |
| 335 rec->GlyphArray[i] = GetUInt16(sp); |
| 336 } |
| 337 } |
| 338 void CFX_CTTGSUBTable::ParseCoverageFormat2(FT_Bytes raw, |
| 339 TCoverageFormat2* rec) { |
| 340 int i; |
| 341 FT_Bytes sp = raw; |
| 342 GetUInt16(sp); |
| 343 rec->RangeCount = GetUInt16(sp); |
| 344 if (rec->RangeCount <= 0) { |
| 345 return; |
| 346 } |
| 347 rec->RangeRecord = new TRangeRecord[rec->RangeCount]; |
| 348 for (i = 0; i < rec->RangeCount; i++) { |
| 349 rec->RangeRecord[i].Start = GetUInt16(sp); |
| 350 rec->RangeRecord[i].End = GetUInt16(sp); |
| 351 rec->RangeRecord[i].StartCoverageIndex = GetUInt16(sp); |
| 352 } |
| 353 } |
| 354 void CFX_CTTGSUBTable::ParseSingleSubst(FT_Bytes raw, TSubTableBase** rec) { |
| 355 FT_Bytes sp = raw; |
| 356 TT_uint16_t Format = GetUInt16(sp); |
| 357 switch (Format) { |
| 358 case 1: |
| 359 *rec = new TSingleSubstFormat1(); |
| 360 ParseSingleSubstFormat1(raw, (TSingleSubstFormat1*)*rec); |
| 361 break; |
| 362 case 2: |
| 363 *rec = new TSingleSubstFormat2(); |
| 364 ParseSingleSubstFormat2(raw, (TSingleSubstFormat2*)*rec); |
| 365 break; |
| 366 } |
| 367 } |
| 368 void CFX_CTTGSUBTable::ParseSingleSubstFormat1(FT_Bytes raw, |
| 369 TSingleSubstFormat1* rec) { |
| 370 FT_Bytes sp = raw; |
| 371 GetUInt16(sp); |
| 372 TT_uint16_t offset = GetUInt16(sp); |
| 373 ParseCoverage(&raw[offset], &rec->Coverage); |
| 374 rec->DeltaGlyphID = GetInt16(sp); |
| 375 } |
| 376 void CFX_CTTGSUBTable::ParseSingleSubstFormat2(FT_Bytes raw, |
| 377 TSingleSubstFormat2* rec) { |
| 378 int i; |
| 379 FT_Bytes sp = raw; |
| 380 GetUInt16(sp); |
| 381 TT_uint16_t offset = GetUInt16(sp); |
| 382 ParseCoverage(&raw[offset], &rec->Coverage); |
| 383 rec->GlyphCount = GetUInt16(sp); |
| 384 if (rec->GlyphCount <= 0) { |
| 385 return; |
| 386 } |
| 387 rec->Substitute = new TT_uint16_t[rec->GlyphCount]; |
| 388 for (i = 0; i < rec->GlyphCount; i++) { |
| 389 rec->Substitute[i] = GetUInt16(sp); |
| 390 } |
| 391 } |
| 392 FX_BOOL CFX_GSUBTable::GetVerticalGlyph(FX_DWORD glyphnum, |
| 393 FX_DWORD* vglyphnum) { |
| 394 return m_GsubImp.GetVerticalGlyph(glyphnum, vglyphnum); |
| 395 } |
| 396 IFX_GSUBTable* FXGE_CreateGSUBTable(CFX_Font* pFont) { |
| 397 if (!pFont) { |
451 return NULL; | 398 return NULL; |
452 } | 399 } |
| 400 if (NULL == pFont->m_pGsubData) { |
| 401 unsigned long length = 0; |
| 402 int error = FXFT_Load_Sfnt_Table( |
| 403 pFont->m_Face, FT_MAKE_TAG('G', 'S', 'U', 'B'), 0, NULL, &length); |
| 404 if (!error) { |
| 405 pFont->m_pGsubData = (unsigned char*)FX_Alloc(FX_BYTE, length); |
| 406 } |
| 407 if (!pFont->m_pGsubData) { |
| 408 return NULL; |
| 409 } |
| 410 } |
| 411 int error = FXFT_Load_Sfnt_Table(pFont->m_Face, |
| 412 FT_MAKE_TAG('G', 'S', 'U', 'B'), |
| 413 0, |
| 414 pFont->m_pGsubData, |
| 415 NULL); |
| 416 if (!error && pFont->m_pGsubData) { |
| 417 CFX_GSUBTable* pGsubTable = FX_NEW CFX_GSUBTable; |
| 418 if (!pGsubTable) { |
| 419 return NULL; |
| 420 } |
| 421 if (pGsubTable->m_GsubImp.LoadGSUBTable((FT_Bytes)pFont->m_pGsubData)) { |
| 422 return pGsubTable; |
| 423 } |
| 424 delete pGsubTable; |
| 425 } |
| 426 return NULL; |
| 427 } |
OLD | NEW |