1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "core/include/fxge/fx_freetype.h"
8 #include "core/include/fxge/fx_ge.h"
9 #include "text_int.h"
10
11 #define EM_ADJUST(em, a) (em == 0 ? (a) : (a)*1000 / em)
12
13 #ifdef PDF_ENABLE_XFA
14 extern void _FPDFAPI_GetInternalFontData(int id1,
15 const uint8_t*& data,
16 FX_DWORD& size);
17 #endif // PDF_ENABLE_XFA
18
19 namespace {
20
21 #ifdef PDF_ENABLE_XFA
22 const FX_DWORD g_EncodingID[] = {
23 FXFM_ENCODING_MS_SYMBOL,
24 FXFM_ENCODING_UNICODE,
25 FXFM_ENCODING_MS_SJIS,
26 FXFM_ENCODING_MS_GB2312,
27 FXFM_ENCODING_MS_BIG5,
28 FXFM_ENCODING_MS_WANSUNG,
29 FXFM_ENCODING_MS_JOHAB,
30 FXFM_ENCODING_ADOBE_STANDARD,
31 FXFM_ENCODING_ADOBE_EXPERT,
32 FXFM_ENCODING_ADOBE_CUSTOM,
33 FXFM_ENCODING_ADOBE_LATIN_1,
34 FXFM_ENCODING_OLD_LATIN_2,
35 FXFM_ENCODING_APPLE_ROMAN,
36 };
37
_FXFM_CreateFontEncoding(CFX_Font * pFont,FX_DWORD nEncodingID)38 CFX_UnicodeEncodingEx* _FXFM_CreateFontEncoding(CFX_Font* pFont,
39 FX_DWORD nEncodingID) {
40 if (FXFT_Select_Charmap(pFont->GetFace(), nEncodingID))
41 return nullptr;
42 return new CFX_UnicodeEncodingEx(pFont, nEncodingID);
43 }
44 #endif // PDF_ENABLE_XFA
45
FT_LoadFont(const uint8_t * pData,int size)46 FXFT_Face FT_LoadFont(const uint8_t* pData, int size) {
47 return CFX_GEModule::Get()->GetFontMgr()->GetFixedFace(pData, size, 0);
48 }
49
50 } // namespace
51
CFX_Font()52 CFX_Font::CFX_Font() {
53 m_pSubstFont = NULL;
54 m_Face = NULL;
55 m_bEmbedded = FALSE;
56 m_bVertical = FALSE;
57 m_pFontData = NULL;
58 m_pFontDataAllocation = NULL;
59 m_dwSize = 0;
60 m_pGsubData = NULL;
61 m_pPlatformFont = NULL;
62 m_pPlatformFontCollection = NULL;
63 m_pDwFont = NULL;
64 m_hHandle = NULL;
65 m_bDwLoaded = FALSE;
66 #ifdef PDF_ENABLE_XFA
67 m_bLogic = FALSE;
68 m_pOwnedStream = NULL;
69 #endif // PDF_ENABLE_XFA
70 }
71
72 #ifdef PDF_ENABLE_XFA
LoadClone(const CFX_Font * pFont)73 FX_BOOL CFX_Font::LoadClone(const CFX_Font* pFont) {
74 if (pFont == NULL) {
75 return FALSE;
76 }
77 m_bLogic = TRUE;
78 if (pFont->m_pSubstFont) {
79 m_pSubstFont = new CFX_SubstFont;
80 m_pSubstFont->m_Charset = pFont->m_pSubstFont->m_Charset;
81 m_pSubstFont->m_ExtHandle = pFont->m_pSubstFont->m_ExtHandle;
82 m_pSubstFont->m_SubstFlags = pFont->m_pSubstFont->m_SubstFlags;
83 m_pSubstFont->m_Weight = pFont->m_pSubstFont->m_Weight;
84 m_pSubstFont->m_Family = pFont->m_pSubstFont->m_Family;
85 m_pSubstFont->m_ItalicAngle = pFont->m_pSubstFont->m_ItalicAngle;
86 }
87 if (pFont->m_OtfFontData.GetSize()) {
88 m_OtfFontData.AttachData(pFont->m_OtfFontData.GetBuffer(),
89 pFont->m_OtfFontData.GetSize());
90 }
91 m_Face = pFont->m_Face;
92 m_bEmbedded = pFont->m_bEmbedded;
93 m_bVertical = pFont->m_bVertical;
94 m_dwSize = pFont->m_dwSize;
95 m_pFontData = pFont->m_pFontData;
96 m_pGsubData = pFont->m_pGsubData;
97 m_pPlatformFont = pFont->m_pPlatformFont;
98 m_pPlatformFontCollection = pFont->m_pPlatformFontCollection;
99 m_pDwFont = pFont->m_pDwFont;
100 m_hHandle = pFont->m_hHandle;
101 m_bDwLoaded = pFont->m_bDwLoaded;
102 m_pOwnedStream = pFont->m_pOwnedStream;
103 return TRUE;
104 }
105 #endif // PDF_ENABLE_XFA
106
~CFX_Font()107 CFX_Font::~CFX_Font() {
108 delete m_pSubstFont;
109 FX_Free(m_pFontDataAllocation);
110 #ifdef PDF_ENABLE_XFA
111 if (m_bLogic) {
112 m_OtfFontData.DetachBuffer();
113 return;
114 }
115 #endif // PDF_ENABLE_XFA
116 if (m_Face) {
117 #ifndef PDF_ENABLE_XFA
118 if (FXFT_Get_Face_External_Stream(m_Face)) {
119 FXFT_Clear_Face_External_Stream(m_Face);
120 }
121 #endif // PDF_ENABLE_XFA
122 if (m_bEmbedded) {
123 DeleteFace();
124 } else {
125 CFX_GEModule::Get()->GetFontMgr()->ReleaseFace(m_Face);
126 }
127 }
128 #ifdef PDF_ENABLE_XFA
129 FX_Free(m_pOwnedStream);
130 #endif // PDF_ENABLE_XFA
131 FX_Free(m_pGsubData);
132 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
133 ReleasePlatformResource();
134 #endif
135 }
DeleteFace()136 void CFX_Font::DeleteFace() {
137 FXFT_Done_Face(m_Face);
138 m_Face = NULL;
139 }
LoadSubst(const CFX_ByteString & face_name,FX_BOOL bTrueType,FX_DWORD flags,int weight,int italic_angle,int CharsetCP,FX_BOOL bVertical)140 void CFX_Font::LoadSubst(const CFX_ByteString& face_name,
141 FX_BOOL bTrueType,
142 FX_DWORD flags,
143 int weight,
144 int italic_angle,
145 int CharsetCP,
146 FX_BOOL bVertical) {
147 m_bEmbedded = FALSE;
148 m_bVertical = bVertical;
149 m_pSubstFont = new CFX_SubstFont;
150 m_Face = CFX_GEModule::Get()->GetFontMgr()->FindSubstFont(
151 face_name, bTrueType, flags, weight, italic_angle, CharsetCP,
152 m_pSubstFont);
153 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
154 if (m_pSubstFont->m_ExtHandle) {
155 m_pPlatformFont = m_pSubstFont->m_ExtHandle;
156 m_pSubstFont->m_ExtHandle = NULL;
157 }
158 #endif
159 if (m_Face) {
160 m_pFontData = FXFT_Get_Face_Stream_Base(m_Face);
161 m_dwSize = FXFT_Get_Face_Stream_Size(m_Face);
162 }
163 }
164 #ifdef PDF_ENABLE_XFA
165 extern "C" {
_FTStreamRead(FXFT_Stream stream,unsigned long offset,unsigned char * buffer,unsigned long count)166 unsigned long _FTStreamRead(FXFT_Stream stream,
167 unsigned long offset,
168 unsigned char* buffer,
169 unsigned long count) {
170 if (count == 0) {
171 return 0;
172 }
173 IFX_FileRead* pFile = (IFX_FileRead*)stream->descriptor.pointer;
174 int res = pFile->ReadBlock(buffer, offset, count);
175 if (res) {
176 return count;
177 }
178 return 0;
179 }
_FTStreamClose(FXFT_Stream stream)180 void _FTStreamClose(FXFT_Stream stream) {}
181 };
_LoadFile(FXFT_Library library,FXFT_Face * Face,IFX_FileRead * pFile,FXFT_Stream * stream,int32_t faceIndex=0)182 FX_BOOL _LoadFile(FXFT_Library library,
183 FXFT_Face* Face,
184 IFX_FileRead* pFile,
185 FXFT_Stream* stream,
186 int32_t faceIndex = 0) {
187 FXFT_Stream stream1 = (FXFT_Stream)FX_Alloc(uint8_t, sizeof(FXFT_StreamRec));
188 stream1->base = NULL;
189 stream1->size = (unsigned long)pFile->GetSize();
190 stream1->pos = 0;
191 stream1->descriptor.pointer = pFile;
192 stream1->close = _FTStreamClose;
193 stream1->read = _FTStreamRead;
194 FXFT_Open_Args args;
195 args.flags = FT_OPEN_STREAM;
196 args.stream = stream1;
197 if (FXFT_Open_Face(library, &args, faceIndex, Face)) {
198 FX_Free(stream1);
199 return FALSE;
200 }
201 if (stream) {
202 *stream = stream1;
203 }
204 return TRUE;
205 }
206
LoadFile(IFX_FileRead * pFile,int nFaceIndex,int * pFaceCount)207 FX_BOOL CFX_Font::LoadFile(IFX_FileRead* pFile,
208 int nFaceIndex,
209 int* pFaceCount) {
210 m_bEmbedded = FALSE;
211
212 CFX_FontMgr* pFontMgr = CFX_GEModule::Get()->GetFontMgr();
213 pFontMgr->InitFTLibrary();
214 FXFT_Library library = pFontMgr->GetFTLibrary();
215
216 FXFT_Stream stream = nullptr;
217 if (!_LoadFile(library, &m_Face, pFile, &stream, nFaceIndex))
218 return FALSE;
219
220 if (pFaceCount)
221 *pFaceCount = (int)m_Face->num_faces;
222 m_pOwnedStream = stream;
223 FXFT_Set_Pixel_Sizes(m_Face, 0, 64);
224 return TRUE;
225 }
226 #endif // PDF_ENABLE_XFA
227
GetGlyphWidth(FX_DWORD glyph_index)228 int CFX_Font::GetGlyphWidth(FX_DWORD glyph_index) {
229 if (!m_Face) {
230 return 0;
231 }
232 if (m_pSubstFont && (m_pSubstFont->m_SubstFlags & FXFONT_SUBST_MM)) {
233 AdjustMMParams(glyph_index, 0, 0);
234 }
235 int err = FXFT_Load_Glyph(
236 m_Face, glyph_index,
237 FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH);
238 if (err) {
239 return 0;
240 }
241 int width = EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
242 FXFT_Get_Glyph_HoriAdvance(m_Face));
243 return width;
244 }
245
LoadEmbedded(const uint8_t * data,FX_DWORD size)246 FX_BOOL CFX_Font::LoadEmbedded(const uint8_t* data, FX_DWORD size) {
247 m_pFontDataAllocation = FX_Alloc(uint8_t, size);
248 FXSYS_memcpy(m_pFontDataAllocation, data, size);
249 m_Face = FT_LoadFont(m_pFontDataAllocation, size);
250 m_pFontData = m_pFontDataAllocation;
251 m_bEmbedded = TRUE;
252 m_dwSize = size;
253 return m_Face != NULL;
254 }
255
IsTTFont() const256 FX_BOOL CFX_Font::IsTTFont() const {
257 if (!m_Face)
258 return FALSE;
259 return FXFT_Is_Face_TT_OT(m_Face) == FXFT_FACE_FLAG_SFNT;
260 }
261
GetAscent() const262 int CFX_Font::GetAscent() const {
263 if (!m_Face)
264 return 0;
265 return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
266 FXFT_Get_Face_Ascender(m_Face));
267 }
268
GetDescent() const269 int CFX_Font::GetDescent() const {
270 if (!m_Face)
271 return 0;
272 return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
273 FXFT_Get_Face_Descender(m_Face));
274 }
275
GetGlyphBBox(FX_DWORD glyph_index,FX_RECT & bbox)276 FX_BOOL CFX_Font::GetGlyphBBox(FX_DWORD glyph_index, FX_RECT& bbox) {
277 if (!m_Face)
278 return FALSE;
279
280 if (FXFT_Is_Face_Tricky(m_Face)) {
281 int error = FXFT_Set_Char_Size(m_Face, 0, 1000 * 64, 72, 72);
282 if (error) {
283 return FALSE;
284 }
285 error = FXFT_Load_Glyph(m_Face, glyph_index,
286 FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH);
287 if (error) {
288 return FALSE;
289 }
290 FXFT_BBox cbox;
291 FT_Glyph glyph;
292 error = FXFT_Get_Glyph(((FXFT_Face)m_Face)->glyph, &glyph);
293 if (error) {
294 return FALSE;
295 }
296 FXFT_Glyph_Get_CBox(glyph, FXFT_GLYPH_BBOX_PIXELS, &cbox);
297 int pixel_size_x = ((FXFT_Face)m_Face)->size->metrics.x_ppem,
298 pixel_size_y = ((FXFT_Face)m_Face)->size->metrics.y_ppem;
299 if (pixel_size_x == 0 || pixel_size_y == 0) {
300 bbox.left = cbox.xMin;
301 bbox.right = cbox.xMax;
302 bbox.top = cbox.yMax;
303 bbox.bottom = cbox.yMin;
304 } else {
305 bbox.left = cbox.xMin * 1000 / pixel_size_x;
306 bbox.right = cbox.xMax * 1000 / pixel_size_x;
307 bbox.top = cbox.yMax * 1000 / pixel_size_y;
308 bbox.bottom = cbox.yMin * 1000 / pixel_size_y;
309 }
310 if (bbox.top > FXFT_Get_Face_Ascender(m_Face)) {
311 bbox.top = FXFT_Get_Face_Ascender(m_Face);
312 }
313 if (bbox.bottom < FXFT_Get_Face_Descender(m_Face)) {
314 bbox.bottom = FXFT_Get_Face_Descender(m_Face);
315 }
316 FT_Done_Glyph(glyph);
317 return FXFT_Set_Pixel_Sizes(m_Face, 0, 64) == 0;
318 }
319 if (FXFT_Load_Glyph(
320 m_Face, glyph_index,
321 FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) {
322 return FALSE;
323 }
324 int em = FXFT_Get_Face_UnitsPerEM(m_Face);
325 if (em == 0) {
326 bbox.left = FXFT_Get_Glyph_HoriBearingX(m_Face);
327 bbox.bottom = FXFT_Get_Glyph_HoriBearingY(m_Face);
328 bbox.top = bbox.bottom - FXFT_Get_Glyph_Height(m_Face);
329 bbox.right = bbox.left + FXFT_Get_Glyph_Width(m_Face);
330 } else {
331 bbox.left = FXFT_Get_Glyph_HoriBearingX(m_Face) * 1000 / em;
332 bbox.top =
333 (FXFT_Get_Glyph_HoriBearingY(m_Face) - FXFT_Get_Glyph_Height(m_Face)) *
334 1000 / em;
335 bbox.right =
336 (FXFT_Get_Glyph_HoriBearingX(m_Face) + FXFT_Get_Glyph_Width(m_Face)) *
337 1000 / em;
338 bbox.bottom = (FXFT_Get_Glyph_HoriBearingY(m_Face)) * 1000 / em;
339 }
340 return TRUE;
341 }
342
IsItalic() const343 FX_BOOL CFX_Font::IsItalic() const {
344 if (!m_Face)
345 return FALSE;
346
347 FX_BOOL ret = FXFT_Is_Face_Italic(m_Face) == FXFT_STYLE_FLAG_ITALIC;
348 if (!ret) {
349 CFX_ByteString str(FXFT_Get_Face_Style_Name(m_Face));
350 str.MakeLower();
351 if (str.Find("italic") != -1) {
352 ret = TRUE;
353 }
354 }
355 return ret;
356 }
357
IsBold() const358 FX_BOOL CFX_Font::IsBold() const {
359 if (!m_Face)
360 return FALSE;
361 return FXFT_Is_Face_Bold(m_Face) == FXFT_STYLE_FLAG_BOLD;
362 }
363
IsFixedWidth() const364 FX_BOOL CFX_Font::IsFixedWidth() const {
365 if (!m_Face)
366 return FALSE;
367 return FXFT_Is_Face_fixedwidth(m_Face);
368 }
369
GetPsName() const370 CFX_WideString CFX_Font::GetPsName() const {
371 if (!m_Face) {
372 return CFX_WideString();
373 }
374 CFX_WideString psName =
375 CFX_WideString::FromLocal(FXFT_Get_Postscript_Name(m_Face));
376 if (psName.IsEmpty()) {
377 psName = CFX_WideString::FromLocal("Untitled");
378 }
379 return psName;
380 }
GetFamilyName() const381 CFX_ByteString CFX_Font::GetFamilyName() const {
382 if (!m_Face && !m_pSubstFont) {
383 return CFX_ByteString();
384 }
385 if (m_Face) {
386 return CFX_ByteString(FXFT_Get_Face_Family_Name(m_Face));
387 }
388 return m_pSubstFont->m_Family;
389 }
GetFaceName() const390 CFX_ByteString CFX_Font::GetFaceName() const {
391 if (!m_Face && !m_pSubstFont) {
392 return CFX_ByteString();
393 }
394 if (m_Face) {
395 CFX_ByteString facename;
396 CFX_ByteString style = CFX_ByteString(FXFT_Get_Face_Style_Name(m_Face));
397 facename = GetFamilyName();
398 if (facename.IsEmpty()) {
399 facename = "Untitled";
400 }
401 if (!style.IsEmpty() && style != "Regular") {
402 facename += " " + style;
403 }
404 return facename;
405 }
406 return m_pSubstFont->m_Family;
407 }
GetBBox(FX_RECT & bbox)408 FX_BOOL CFX_Font::GetBBox(FX_RECT& bbox) {
409 if (!m_Face) {
410 return FALSE;
411 }
412 int em = FXFT_Get_Face_UnitsPerEM(m_Face);
413 if (em == 0) {
414 bbox.left = FXFT_Get_Face_xMin(m_Face);
415 bbox.bottom = FXFT_Get_Face_yMax(m_Face);
416 bbox.top = FXFT_Get_Face_yMin(m_Face);
417 bbox.right = FXFT_Get_Face_xMax(m_Face);
418 } else {
419 bbox.left = FXFT_Get_Face_xMin(m_Face) * 1000 / em;
420 bbox.top = FXFT_Get_Face_yMin(m_Face) * 1000 / em;
421 bbox.right = FXFT_Get_Face_xMax(m_Face) * 1000 / em;
422 bbox.bottom = FXFT_Get_Face_yMax(m_Face) * 1000 / em;
423 }
424 return TRUE;
425 }
426
GetHeight() const427 int CFX_Font::GetHeight() const {
428 if (!m_Face)
429 return 0;
430
431 return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
432 FXFT_Get_Face_Height(m_Face));
433 }
434
GetMaxAdvanceWidth() const435 int CFX_Font::GetMaxAdvanceWidth() const {
436 if (!m_Face)
437 return 0;
438
439 return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
440 FXFT_Get_Face_MaxAdvanceWidth(m_Face));
441 }
442
GetULPos() const443 int CFX_Font::GetULPos() const {
444 if (!m_Face)
445 return 0;
446
447 return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
448 FXFT_Get_Face_UnderLinePosition(m_Face));
449 }
450
GetULthickness() const451 int CFX_Font::GetULthickness() const {
452 if (!m_Face)
453 return 0;
454
455 return EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
456 FXFT_Get_Face_UnderLineThickness(m_Face));
457 }
458
CFX_UnicodeEncoding(CFX_Font * pFont)459 CFX_UnicodeEncoding::CFX_UnicodeEncoding(CFX_Font* pFont) : m_pFont(pFont) {
460 }
461
~CFX_UnicodeEncoding()462 CFX_UnicodeEncoding::~CFX_UnicodeEncoding() {
463 }
464
GlyphFromCharCode(FX_DWORD charcode)465 FX_DWORD CFX_UnicodeEncoding::GlyphFromCharCode(FX_DWORD charcode) {
466 FXFT_Face face = m_pFont->GetFace();
467 if (!face)
468 return charcode;
469
470 if (FXFT_Select_Charmap(face, FXFT_ENCODING_UNICODE) == 0)
471 return FXFT_Get_Char_Index(face, charcode);
472
473 if (m_pFont->GetSubstFont() && m_pFont->GetSubstFont()->m_Charset == 2) {
474 FX_DWORD index = 0;
475 if (FXFT_Select_Charmap(face, FXFT_ENCODING_MS_SYMBOL) == 0)
476 index = FXFT_Get_Char_Index(face, charcode);
477 if (!index && !FXFT_Select_Charmap(face, FXFT_ENCODING_APPLE_ROMAN))
478 return FXFT_Get_Char_Index(face, charcode);
479 }
480 return charcode;
481 }
482
483 #ifdef PDF_ENABLE_XFA
CFX_UnicodeEncodingEx(CFX_Font * pFont,FX_DWORD EncodingID)484 CFX_UnicodeEncodingEx::CFX_UnicodeEncodingEx(CFX_Font* pFont,
485 FX_DWORD EncodingID)
486 : CFX_UnicodeEncoding(pFont), m_nEncodingID(EncodingID) {
487 }
488
~CFX_UnicodeEncodingEx()489 CFX_UnicodeEncodingEx::~CFX_UnicodeEncodingEx() {
490 }
491
GlyphFromCharCode(FX_DWORD charcode)492 FX_DWORD CFX_UnicodeEncodingEx::GlyphFromCharCode(FX_DWORD charcode) {
493 FXFT_Face face = m_pFont->GetFace();
494 FT_UInt nIndex = FXFT_Get_Char_Index(face, charcode);
495 if (nIndex > 0) {
496 return nIndex;
497 }
498 int nmaps = FXFT_Get_Face_CharmapCount(face);
499 int m = 0;
500 while (m < nmaps) {
501 int nEncodingID =
502 FXFT_Get_Charmap_Encoding(FXFT_Get_Face_Charmaps(face)[m++]);
503 if (m_nEncodingID == nEncodingID) {
504 continue;
505 }
506 int error = FXFT_Select_Charmap(face, nEncodingID);
507 if (error) {
508 continue;
509 }
510 nIndex = FXFT_Get_Char_Index(face, charcode);
511 if (nIndex > 0) {
512 m_nEncodingID = nEncodingID;
513 return nIndex;
514 }
515 }
516 FXFT_Select_Charmap(face, m_nEncodingID);
517 return 0;
518 }
519
CharCodeFromUnicode(FX_WCHAR Unicode) const520 FX_DWORD CFX_UnicodeEncodingEx::CharCodeFromUnicode(FX_WCHAR Unicode) const {
521 if (m_nEncodingID == FXFM_ENCODING_UNICODE ||
522 m_nEncodingID == FXFM_ENCODING_MS_SYMBOL) {
523 return Unicode;
524 }
525 FXFT_Face face = m_pFont->GetFace();
526 int nmaps = FXFT_Get_Face_CharmapCount(face);
527 for (int i = 0; i < nmaps; i++) {
528 int nEncodingID =
529 FXFT_Get_Charmap_Encoding(FXFT_Get_Face_Charmaps(face)[i]);
530 if (nEncodingID == FXFM_ENCODING_UNICODE ||
531 nEncodingID == FXFM_ENCODING_MS_SYMBOL) {
532 return Unicode;
533 }
534 }
535 return -1;
536 }
537
FX_CreateFontEncodingEx(CFX_Font * pFont,FX_DWORD nEncodingID)538 CFX_UnicodeEncodingEx* FX_CreateFontEncodingEx(CFX_Font* pFont,
539 FX_DWORD nEncodingID) {
540 if (!pFont || !pFont->GetFace())
541 return nullptr;
542
543 if (nEncodingID != FXFM_ENCODING_NONE)
544 return _FXFM_CreateFontEncoding(pFont, nEncodingID);
545
546 for (size_t i = 0; i < FX_ArraySize(g_EncodingID); ++i) {
547 CFX_UnicodeEncodingEx* pFontEncoding =
548 _FXFM_CreateFontEncoding(pFont, g_EncodingID[i]);
549 if (pFontEncoding) {
550 return pFontEncoding;
551 }
552 }
553 return NULL;
554 }
555 #endif // PDF_ENABLE_XFA
556