Line data Source code
1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include "gcach_ftyp.hxx"
21 :
22 : #include "vcl/svapp.hxx"
23 : #include <outfont.hxx>
24 : #include <impfont.hxx>
25 : #include <config_features.h>
26 : #include <config_graphite.h>
27 : #if ENABLE_GRAPHITE
28 : # include <graphite_static.hxx>
29 : # include <graphite2/Font.h>
30 : # include <graphite_layout.hxx>
31 : #endif
32 : #include <unotools/fontdefs.hxx>
33 :
34 : #include "tools/poly.hxx"
35 : #include "basegfx/matrix/b2dhommatrix.hxx"
36 : #include "basegfx/matrix/b2dhommatrixtools.hxx"
37 : #include "basegfx/polygon/b2dpolypolygon.hxx"
38 :
39 : #include "osl/file.hxx"
40 : #include "osl/thread.hxx"
41 :
42 : #include "langboost.hxx"
43 : #include "PhysicalFontCollection.hxx"
44 : #include "sft.hxx"
45 :
46 : #include <ft2build.h>
47 : #include FT_FREETYPE_H
48 : #include FT_GLYPH_H
49 : #include FT_OUTLINE_H
50 : #include FT_SIZES_H
51 : #include FT_SYNTHESIS_H
52 : #include FT_TRUETYPE_TABLES_H
53 : #include FT_TRUETYPE_TAGS_H
54 : #include FT_TRUETYPE_IDS_H
55 :
56 : #include "rtl/instance.hxx"
57 :
58 : typedef const FT_Vector* FT_Vector_CPtr;
59 :
60 : #include <vector>
61 :
62 : // TODO: move file mapping stuff to OSL
63 : #include <unistd.h>
64 : #include <fcntl.h>
65 : #include <sys/stat.h>
66 : #include <sys/mman.h>
67 : #include "fontmanager.hxx"
68 :
69 : // the gamma table makes artificial bold look better for CJK glyphs
70 : static unsigned char aGammaTable[257];
71 :
72 304 : static void InitGammaTable()
73 : {
74 : static const int M_MAX = 255;
75 : static const int M_X = 128;
76 : static const int M_Y = 208;
77 :
78 : int x, a;
79 78128 : for( x = 0; x < 256; x++)
80 : {
81 77824 : if ( x <= M_X )
82 39216 : a = ( x * M_Y + M_X / 2) / M_X;
83 : else
84 38608 : a = M_Y + ( ( x - M_X ) * ( M_MAX - M_Y ) +
85 38608 : ( M_MAX - M_X ) / 2 ) / ( M_MAX - M_X );
86 :
87 77824 : aGammaTable[x] = (unsigned char)a;
88 : }
89 304 : }
90 :
91 : static FT_Library aLibFT = 0;
92 :
93 : // enable linking with old FT versions
94 : static int nFTVERSION = 0;
95 :
96 : typedef ::boost::unordered_map<const char*, boost::shared_ptr<FtFontFile>, rtl::CStringHash, rtl::CStringEqual> FontFileList;
97 :
98 : namespace { struct vclFontFileList : public rtl::Static< FontFileList, vclFontFileList > {}; }
99 :
100 : // TODO: remove when the priorities are selected by UI
101 : // if (AH==0) => disable autohinting
102 : // if (AA==0) => disable antialiasing
103 : // if (EB==0) => disable embedded bitmaps
104 : // if (AA prio <= AH prio) => antialias + autohint
105 : // if (AH<AA) => do not autohint when antialiasing
106 : // if (EB<AH) => do not autohint for monochrome
107 : static int nDefaultPrioEmbedded = 2;
108 : static int nDefaultPrioAutoHint = 1;
109 : static int nDefaultPrioAntiAlias = 1;
110 :
111 : // FreetypeManager
112 :
113 46208 : FtFontFile::FtFontFile( const OString& rNativeFileName )
114 : : maNativeFileName( rNativeFileName ),
115 : mpFileMap( NULL ),
116 : mnFileSize( 0 ),
117 : mnRefCount( 0 ),
118 46208 : mnLangBoost( 0 )
119 : {
120 : // boost font preference if UI language is mentioned in filename
121 46208 : int nPos = maNativeFileName.lastIndexOf( '_' );
122 46208 : if( nPos == -1 || maNativeFileName[nPos+1] == '.' )
123 41952 : mnLangBoost += 0x1000; // no langinfo => good
124 : else
125 : {
126 : static const char* pLangBoost = NULL;
127 : static bool bOnce = true;
128 4256 : if( bOnce )
129 : {
130 304 : bOnce = false;
131 304 : pLangBoost = vcl::getLangBoost();
132 : }
133 :
134 4256 : if( pLangBoost && !strncasecmp( pLangBoost, &maNativeFileName.getStr()[nPos+1], 3 ) )
135 0 : mnLangBoost += 0x2000; // matching langinfo => better
136 : }
137 46208 : }
138 :
139 46208 : FtFontFile* FtFontFile::FindFontFile( const OString& rNativeFileName )
140 : {
141 : // font file already known? (e.g. for ttc, synthetic, aliased fonts)
142 46208 : const char* pFileName = rNativeFileName.getStr();
143 46208 : FontFileList &rFontFileList = vclFontFileList::get();
144 46208 : FontFileList::const_iterator it = rFontFileList.find( pFileName );
145 46208 : if( it != rFontFileList.end() )
146 0 : return it->second.get();
147 :
148 : // no => create new one
149 46208 : FtFontFile* pFontFile = new FtFontFile( rNativeFileName );
150 46208 : pFileName = pFontFile->maNativeFileName.getStr();
151 46208 : rFontFileList[pFileName].reset(pFontFile);
152 46208 : return pFontFile;
153 : }
154 :
155 1403 : bool FtFontFile::Map()
156 : {
157 1403 : if( mnRefCount++ <= 0 )
158 : {
159 1403 : const char* pFileName = maNativeFileName.getStr();
160 1403 : int nFile = open( pFileName, O_RDONLY );
161 1403 : if( nFile < 0 )
162 0 : return false;
163 :
164 : struct stat aStat;
165 1403 : int nRet = fstat( nFile, &aStat );
166 1403 : if (nRet < 0)
167 : {
168 0 : close (nFile);
169 0 : return false;
170 : }
171 1403 : mnFileSize = aStat.st_size;
172 : mpFileMap = (const unsigned char*)
173 1403 : mmap( NULL, mnFileSize, PROT_READ, MAP_SHARED, nFile, 0 );
174 1403 : if( mpFileMap == MAP_FAILED )
175 0 : mpFileMap = NULL;
176 1403 : close( nFile );
177 : }
178 :
179 1403 : return (mpFileMap != NULL);
180 : }
181 :
182 1403 : void FtFontFile::Unmap()
183 : {
184 1403 : if( (--mnRefCount > 0) || (mpFileMap == NULL) )
185 1403 : return;
186 :
187 1403 : munmap( (char*)mpFileMap, mnFileSize );
188 1403 : mpFileMap = NULL;
189 : }
190 :
191 : #if ENABLE_GRAPHITE
192 : // wrap FtFontInfo's table function
193 0 : const void * graphiteFontTable(const void* appFaceHandle, unsigned int name, size_t *len)
194 : {
195 0 : const FtFontInfo * pFontInfo = reinterpret_cast<const FtFontInfo*>(appFaceHandle);
196 : typedef union {
197 : char m_c[5];
198 : unsigned int m_id;
199 : } TableId;
200 : TableId tableId;
201 0 : tableId.m_id = name;
202 : #ifndef OSL_BIGENDIAN
203 : TableId swapped;
204 0 : swapped.m_c[3] = tableId.m_c[0];
205 0 : swapped.m_c[2] = tableId.m_c[1];
206 0 : swapped.m_c[1] = tableId.m_c[2];
207 0 : swapped.m_c[0] = tableId.m_c[3];
208 0 : tableId.m_id = swapped.m_id;
209 : #endif
210 0 : tableId.m_c[4] = '\0';
211 0 : sal_uLong nLength = 0;
212 0 : const void * pTable = static_cast<const void*>(pFontInfo->GetTable(tableId.m_c, &nLength));
213 0 : if (len) *len = static_cast<size_t>(nLength);
214 0 : return pTable;
215 : }
216 : #endif
217 :
218 46208 : FtFontInfo::FtFontInfo( const ImplDevFontAttributes& rDevFontAttributes,
219 : const OString& rNativeFileName, int nFaceNum, sal_IntPtr nFontId, int nSynthetic)
220 : :
221 : maFaceFT( NULL ),
222 46208 : mpFontFile( FtFontFile::FindFontFile( rNativeFileName ) ),
223 : mnFaceNum( nFaceNum ),
224 : mnRefCount( 0 ),
225 : mnSynthetic( nSynthetic ),
226 : #if ENABLE_GRAPHITE
227 : mbCheckedGraphite(false),
228 : mpGraphiteFace(NULL),
229 : #endif
230 : mnFontId( nFontId ),
231 : maDevFontAttributes( rDevFontAttributes ),
232 : mpFontCharMap( NULL ),
233 : mpChar2Glyph( NULL ),
234 92416 : mpGlyph2Char( NULL )
235 : {
236 : // prefer font with low ID
237 46208 : maDevFontAttributes.mnQuality += 10000 - nFontId;
238 : // prefer font with matching file names
239 46208 : maDevFontAttributes.mnQuality += mpFontFile->GetLangBoost();
240 46208 : }
241 :
242 92416 : FtFontInfo::~FtFontInfo()
243 : {
244 46208 : if( mpFontCharMap )
245 374 : mpFontCharMap = 0;
246 46208 : delete mpChar2Glyph;
247 46208 : delete mpGlyph2Char;
248 : #if ENABLE_GRAPHITE
249 46208 : delete mpGraphiteFace;
250 : #endif
251 46208 : }
252 :
253 1399 : void FtFontInfo::InitHashes() const
254 : {
255 : // TODO: avoid pointers when empty stl::hash_* objects become cheap
256 1399 : mpChar2Glyph = new Int2IntMap();
257 1399 : mpGlyph2Char = new Int2IntMap();
258 1399 : }
259 :
260 9613 : FT_FaceRec_* FtFontInfo::GetFaceFT()
261 : {
262 9613 : if (!maFaceFT && mpFontFile->Map())
263 : {
264 : FT_Error rc = FT_New_Memory_Face( aLibFT,
265 1403 : (FT_Byte*)mpFontFile->GetBuffer(),
266 2806 : mpFontFile->GetFileSize(), mnFaceNum, &maFaceFT );
267 1403 : if( (rc != FT_Err_Ok) || (maFaceFT->num_glyphs <= 0) )
268 0 : maFaceFT = NULL;
269 : }
270 :
271 9613 : ++mnRefCount;
272 9613 : return maFaceFT;
273 : }
274 :
275 : #if ENABLE_GRAPHITE
276 6073 : GraphiteFaceWrapper * FtFontInfo::GetGraphiteFace()
277 : {
278 6073 : if (mbCheckedGraphite)
279 5979 : return mpGraphiteFace;
280 : // test for graphite here so that it is cached most efficiently
281 94 : if (GetTable("Silf", 0))
282 : {
283 0 : static const char* pGraphiteCacheStr = getenv( "SAL_GRAPHITE_CACHE_SIZE" );
284 0 : int graphiteSegCacheSize = pGraphiteCacheStr ? (atoi(pGraphiteCacheStr)) : 0;
285 : gr_face * pGraphiteFace;
286 0 : if (graphiteSegCacheSize > 500)
287 0 : pGraphiteFace = gr_make_face_with_seg_cache(this, graphiteFontTable, graphiteSegCacheSize, gr_face_cacheCmap);
288 : else
289 0 : pGraphiteFace = gr_make_face(this, graphiteFontTable, gr_face_cacheCmap);
290 0 : if (pGraphiteFace)
291 0 : mpGraphiteFace = new GraphiteFaceWrapper(pGraphiteFace);
292 : }
293 94 : mbCheckedGraphite = true;
294 94 : return mpGraphiteFace;
295 : }
296 : #endif
297 :
298 9613 : void FtFontInfo::ReleaseFaceFT()
299 : {
300 9613 : if (--mnRefCount <= 0)
301 : {
302 1403 : FT_Done_Face( maFaceFT );
303 1403 : maFaceFT = NULL;
304 1403 : mpFontFile->Unmap();
305 : }
306 9613 : }
307 :
308 85974 : static unsigned GetUInt( const unsigned char* p ) { return((p[0]<<24)+(p[1]<<16)+(p[2]<<8)+p[3]);}
309 35652 : static unsigned GetUShort( const unsigned char* p ){ return((p[0]<<8)+p[1]);}
310 : //static signed GetSShort( const unsigned char* p ){ return((short)((p[0]<<8)+p[1]));}
311 :
312 : static const sal_uInt32 T_true = 0x74727565; /* 'true' */
313 : static const sal_uInt32 T_ttcf = 0x74746366; /* 'ttcf' */
314 : static const sal_uInt32 T_otto = 0x4f54544f; /* 'OTTO' */
315 :
316 33824 : const unsigned char* FtFontInfo::GetTable( const char* pTag, sal_uLong* pLength ) const
317 : {
318 33824 : const unsigned char* pBuffer = mpFontFile->GetBuffer();
319 33824 : int nFileSize = mpFontFile->GetFileSize();
320 33824 : if( !pBuffer || nFileSize<1024 )
321 0 : return NULL;
322 :
323 : // we currently handle TTF, TTC and OTF headers
324 33824 : unsigned nFormat = GetUInt( pBuffer );
325 :
326 33824 : const unsigned char* p = pBuffer + 12;
327 33824 : if( nFormat == T_ttcf ) // TTC_MAGIC
328 0 : p += GetUInt( p + 4 * mnFaceNum );
329 33824 : else if( nFormat != 0x00010000 && nFormat != T_true && nFormat != T_otto) // TTF_MAGIC and Apple TTF Magic and PS-OpenType font
330 1196 : return NULL;
331 :
332 : // walk table directory until match
333 32628 : int nTables = GetUShort( p - 8 );
334 32628 : if( nTables >= 64 ) // something fishy?
335 0 : return NULL;
336 222313 : for( int i = 0; i < nTables; ++i, p+=16 )
337 : {
338 215076 : if( p[0]==pTag[0] && p[1]==pTag[1] && p[2]==pTag[2] && p[3]==pTag[3] )
339 : {
340 25391 : sal_uLong nLength = GetUInt( p + 12 );
341 25391 : if( pLength != NULL )
342 25391 : *pLength = nLength;
343 25391 : const unsigned char* pTable = pBuffer + GetUInt( p + 8 );
344 25391 : if( (pTable + nLength) <= (mpFontFile->GetBuffer() + nFileSize) )
345 25391 : return pTable;
346 : }
347 : }
348 :
349 7237 : return NULL;
350 : }
351 :
352 47424 : void FtFontInfo::AnnounceFont( PhysicalFontCollection* pFontCollection )
353 : {
354 47424 : ImplFTSFontData* pFD = new ImplFTSFontData( this, maDevFontAttributes );
355 47424 : pFontCollection->Add( pFD );
356 47424 : }
357 :
358 304 : FreetypeManager::FreetypeManager()
359 304 : : mnMaxFontId( 0 )
360 : {
361 304 : /*FT_Error rcFT =*/ FT_Init_FreeType( &aLibFT );
362 :
363 304 : FT_Int nMajor = 0, nMinor = 0, nPatch = 0;
364 304 : FT_Library_Version(aLibFT, &nMajor, &nMinor, &nPatch);
365 304 : nFTVERSION = nMajor * 1000 + nMinor * 100 + nPatch;
366 :
367 : // TODO: remove when the priorities are selected by UI
368 : char* pEnv;
369 304 : pEnv = ::getenv( "SAL_EMBEDDED_BITMAP_PRIORITY" );
370 304 : if( pEnv )
371 0 : nDefaultPrioEmbedded = pEnv[0] - '0';
372 304 : pEnv = ::getenv( "SAL_ANTIALIASED_TEXT_PRIORITY" );
373 304 : if( pEnv )
374 0 : nDefaultPrioAntiAlias = pEnv[0] - '0';
375 304 : pEnv = ::getenv( "SAL_AUTOHINTING_PRIORITY" );
376 304 : if( pEnv )
377 0 : nDefaultPrioAutoHint = pEnv[0] - '0';
378 :
379 304 : InitGammaTable();
380 304 : vclFontFileList::get();
381 304 : }
382 :
383 2218137 : FT_Face ServerFont::GetFtFace() const
384 : {
385 2218137 : FT_Activate_Size( maSizeFT );
386 :
387 2218137 : return maFaceFT;
388 : }
389 :
390 608 : FreetypeManager::~FreetypeManager()
391 : {
392 304 : ClearFontList();
393 304 : }
394 :
395 47424 : void FreetypeManager::AddFontFile( const OString& rNormalizedName,
396 : int nFaceNum, sal_IntPtr nFontId, const ImplDevFontAttributes& rDevFontAttr)
397 : {
398 47424 : if( rNormalizedName.isEmpty() )
399 0 : return;
400 :
401 47424 : if( maFontList.find( nFontId ) != maFontList.end() )
402 1216 : return;
403 :
404 : FtFontInfo* pFontInfo = new FtFontInfo( rDevFontAttr,
405 46208 : rNormalizedName, nFaceNum, nFontId, 0);
406 46208 : maFontList[ nFontId ] = pFontInfo;
407 46208 : if( mnMaxFontId < nFontId )
408 608 : mnMaxFontId = nFontId;
409 : }
410 :
411 312 : void FreetypeManager::AnnounceFonts( PhysicalFontCollection* pToAdd ) const
412 : {
413 47736 : for( FontList::const_iterator it = maFontList.begin(); it != maFontList.end(); ++it )
414 : {
415 47424 : FtFontInfo* pFtFontInfo = it->second;
416 47424 : pFtFontInfo->AnnounceFont( pToAdd );
417 : }
418 312 : }
419 :
420 304 : void FreetypeManager::ClearFontList( )
421 : {
422 46512 : for( FontList::iterator it = maFontList.begin(); it != maFontList.end(); ++it )
423 : {
424 46208 : FtFontInfo* pFtFontInfo = it->second;
425 46208 : delete pFtFontInfo;
426 : }
427 304 : maFontList.clear();
428 304 : }
429 :
430 9613 : ServerFont* FreetypeManager::CreateFont( const FontSelectPattern& rFSD )
431 : {
432 9613 : FtFontInfo* pFontInfo = NULL;
433 :
434 : // find a FontInfo matching to the font id
435 9613 : sal_IntPtr nFontId = reinterpret_cast<sal_IntPtr>( rFSD.mpFontData );
436 9613 : FontList::iterator it = maFontList.find( nFontId );
437 9613 : if( it != maFontList.end() )
438 9613 : pFontInfo = it->second;
439 :
440 9613 : if( !pFontInfo )
441 0 : return NULL;
442 :
443 9613 : ServerFont* pNew = new ServerFont( rFSD, pFontInfo );
444 :
445 9613 : return pNew;
446 : }
447 :
448 47424 : ImplFTSFontData::ImplFTSFontData( FtFontInfo* pFI, const ImplDevFontAttributes& rDFA )
449 : : PhysicalFontFace( rDFA, IFTSFONT_MAGIC ),
450 47424 : mpFtFontInfo( pFI )
451 : {
452 47424 : mbDevice = false;
453 47424 : mbOrientation = true;
454 47424 : }
455 :
456 23397 : ImplFontEntry* ImplFTSFontData::CreateFontInstance( FontSelectPattern& rFSD ) const
457 : {
458 23397 : ImplServerFontEntry* pEntry = new ImplServerFontEntry( rFSD );
459 23397 : return pEntry;
460 : }
461 :
462 : // ServerFont
463 :
464 9613 : ServerFont::ServerFont( const FontSelectPattern& rFSD, FtFontInfo* pFI )
465 : : maGlyphList( 0),
466 : maFontSelData(rFSD),
467 : mnRefCount(1),
468 : mnBytesUsed( sizeof(ServerFont) ),
469 : mpPrevGCFont( NULL ),
470 : mpNextGCFont( NULL ),
471 : mnCos( 0x10000),
472 : mnSin( 0 ),
473 : mbCollectedZW( false ),
474 : mnPrioEmbedded(nDefaultPrioEmbedded),
475 : mnPrioAntiAlias(nDefaultPrioAntiAlias),
476 : mnPrioAutoHint(nDefaultPrioAutoHint),
477 : mpFontInfo( pFI ),
478 : mnLoadFlags( 0 ),
479 : maFaceFT( NULL ),
480 : maSizeFT( NULL ),
481 : mbFaceOk( false ),
482 : mbArtItalic( false ),
483 : mbArtBold( false ),
484 : mbUseGamma( false ),
485 9613 : mpLayoutEngine( NULL )
486 : {
487 : // TODO: move update of mpFontEntry into FontEntry class when
488 : // it becomes reponsible for the ServerFont instantiation
489 9613 : static_cast<ImplServerFontEntry*>(rFSD.mpFontEntry)->SetServerFont( this );
490 :
491 9613 : maFaceFT = pFI->GetFaceFT();
492 :
493 9613 : if( rFSD.mnOrientation != 0 )
494 : {
495 306 : const double dRad = rFSD.mnOrientation * ( F_2PI / 3600.0 );
496 306 : mnCos = static_cast<long>( 0x10000 * cos( dRad ) + 0.5 );
497 306 : mnSin = static_cast<long>( 0x10000 * sin( dRad ) + 0.5 );
498 : }
499 :
500 : // set the pixel size of the font instance
501 9613 : mnWidth = rFSD.mnWidth;
502 9613 : if( !mnWidth )
503 8759 : mnWidth = rFSD.mnHeight;
504 9613 : mfStretch = (double)mnWidth / rFSD.mnHeight;
505 : // sanity check (e.g. #i66394#, #i66244#, #66537#)
506 9613 : if( (mnWidth < 0) || (mfStretch > +64.0) || (mfStretch < -64.0) )
507 0 : return;
508 :
509 9613 : if( !maFaceFT )
510 0 : return;
511 :
512 9613 : FT_New_Size( maFaceFT, &maSizeFT );
513 9613 : FT_Activate_Size( maSizeFT );
514 9613 : FT_Error rc = FT_Set_Pixel_Sizes( maFaceFT, mnWidth, rFSD.mnHeight );
515 9613 : if( rc != FT_Err_Ok )
516 0 : return;
517 :
518 9613 : FT_Select_Charmap(maFaceFT, FT_ENCODING_UNICODE);
519 :
520 9613 : if( mpFontInfo->IsSymbolFont() )
521 : {
522 38 : FT_Encoding eEncoding = FT_ENCODING_MS_SYMBOL;
523 38 : if (!FT_IS_SFNT(maFaceFT))
524 38 : eEncoding = FT_ENCODING_ADOBE_CUSTOM; // freetype wants this for PS symbol fonts
525 :
526 38 : FT_Select_Charmap(maFaceFT, eEncoding);
527 : }
528 :
529 9613 : mbFaceOk = true;
530 :
531 9613 : ApplyGSUB( rFSD );
532 :
533 : // TODO: query GASP table for load flags
534 9613 : mnLoadFlags = FT_LOAD_DEFAULT;
535 : #if 1 // #i97326# cairo sometimes uses FT_Set_Transform() on our FT_FACE
536 : // we are not using FT_Set_Transform() yet, so just ignore it for now
537 9613 : mnLoadFlags |= FT_LOAD_IGNORE_TRANSFORM;
538 : #endif
539 :
540 9613 : mbArtItalic = (rFSD.GetSlant() != ITALIC_NONE && pFI->GetFontAttributes().GetSlant() == ITALIC_NONE);
541 9613 : mbArtBold = (rFSD.GetWeight() > WEIGHT_MEDIUM && pFI->GetFontAttributes().GetWeight() <= WEIGHT_MEDIUM);
542 9613 : if( mbArtBold )
543 : {
544 : //static const int TT_CODEPAGE_RANGE_874 = (1L << 16); // Thai
545 : //static const int TT_CODEPAGE_RANGE_932 = (1L << 17); // JIS/Japan
546 : //static const int TT_CODEPAGE_RANGE_936 = (1L << 18); // Chinese: Simplified
547 : //static const int TT_CODEPAGE_RANGE_949 = (1L << 19); // Korean Wansung
548 : //static const int TT_CODEPAGE_RANGE_950 = (1L << 20); // Chinese: Traditional
549 : //static const int TT_CODEPAGE_RANGE_1361 = (1L << 21); // Korean Johab
550 : static const int TT_CODEPAGE_RANGES1_CJKT = 0x3F0000; // all of the above
551 18 : const TT_OS2* pOs2 = (const TT_OS2*)FT_Get_Sfnt_Table( maFaceFT, ft_sfnt_os2 );
552 18 : if ((pOs2) && (pOs2->ulCodePageRange1 & TT_CODEPAGE_RANGES1_CJKT )
553 0 : && rFSD.mnHeight < 20)
554 0 : mbUseGamma = true;
555 : }
556 :
557 9613 : if( ((mnCos != 0) && (mnSin != 0)) || (mnPrioEmbedded <= 0) )
558 130 : mnLoadFlags |= FT_LOAD_NO_BITMAP;
559 : }
560 :
561 0 : void ServerFont::SetFontOptions( boost::shared_ptr<ImplFontOptions> pFontOptions)
562 : {
563 0 : mpFontOptions = pFontOptions;
564 :
565 0 : if (!mpFontOptions)
566 0 : return;
567 :
568 0 : FontAutoHint eHint = mpFontOptions->GetUseAutoHint();
569 0 : if( eHint == AUTOHINT_DONTKNOW )
570 0 : eHint = mbUseGamma ? AUTOHINT_TRUE : AUTOHINT_FALSE;
571 :
572 0 : if( eHint == AUTOHINT_TRUE )
573 0 : mnLoadFlags |= FT_LOAD_FORCE_AUTOHINT;
574 :
575 0 : if( (mnSin != 0) && (mnCos != 0) ) // hinting for 0/90/180/270 degrees only
576 0 : mnLoadFlags |= FT_LOAD_NO_HINTING;
577 0 : mnLoadFlags |= FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH; //#88334#
578 :
579 0 : if( mpFontOptions->DontUseAntiAlias() )
580 0 : mnPrioAntiAlias = 0;
581 0 : if( mpFontOptions->DontUseEmbeddedBitmaps() )
582 0 : mnPrioEmbedded = 0;
583 0 : if( mpFontOptions->DontUseHinting() )
584 0 : mnPrioAutoHint = 0;
585 :
586 0 : if( mnPrioAutoHint <= 0 )
587 0 : mnLoadFlags |= FT_LOAD_NO_HINTING;
588 :
589 : #if defined(FT_LOAD_TARGET_LIGHT) && defined(FT_LOAD_TARGET_NORMAL)
590 0 : if( !(mnLoadFlags & FT_LOAD_NO_HINTING) )
591 : {
592 0 : mnLoadFlags |= FT_LOAD_TARGET_NORMAL;
593 0 : switch( mpFontOptions->GetHintStyle() )
594 : {
595 : case HINT_NONE:
596 0 : mnLoadFlags |= FT_LOAD_NO_HINTING;
597 0 : break;
598 : case HINT_SLIGHT:
599 0 : mnLoadFlags |= FT_LOAD_TARGET_LIGHT;
600 0 : break;
601 : case HINT_MEDIUM:
602 0 : break;
603 : case HINT_FULL:
604 : default:
605 0 : break;
606 : }
607 : }
608 : #endif
609 :
610 0 : if( mnPrioEmbedded <= 0 )
611 0 : mnLoadFlags |= FT_LOAD_NO_BITMAP;
612 : }
613 :
614 0 : boost::shared_ptr<ImplFontOptions> ServerFont::GetFontOptions() const
615 : {
616 0 : return mpFontOptions;
617 : }
618 :
619 0 : const OString& ServerFont::GetFontFileName() const
620 : {
621 0 : return mpFontInfo->GetFontFileName();
622 : }
623 :
624 :
625 28839 : ServerFont::~ServerFont()
626 : {
627 9613 : delete mpLayoutEngine;
628 :
629 9613 : if( maSizeFT )
630 9613 : FT_Done_Size( maSizeFT );
631 :
632 9613 : mpFontInfo->ReleaseFaceFT();
633 :
634 9613 : ReleaseFromGarbageCollect();
635 19226 : }
636 :
637 :
638 22286 : void ServerFont::FetchFontMetric( ImplFontMetricData& rTo, long& rFactor ) const
639 : {
640 22286 : static_cast<ImplFontAttributes&>(rTo) = mpFontInfo->GetFontAttributes();
641 :
642 22286 : rTo.mbScalableFont = true;
643 22286 : rTo.mbDevice = true;
644 22286 : rTo.mbKernableFont = FT_HAS_KERNING( maFaceFT ) != 0;
645 22286 : rTo.mnOrientation = GetFontSelData().mnOrientation;
646 :
647 : //Always consider [star]symbol as symbol fonts
648 22286 : if ( IsStarSymbol( rTo.GetFamilyName() ) )
649 1734 : rTo.SetSymbolFlag( true );
650 :
651 22286 : FT_Activate_Size( maSizeFT );
652 :
653 22286 : rFactor = 0x100;
654 :
655 22286 : const TT_OS2* pOS2 = (const TT_OS2*)FT_Get_Sfnt_Table( maFaceFT, ft_sfnt_os2 );
656 22286 : const double fScale = (double)GetFontSelData().mnHeight / maFaceFT->units_per_EM;
657 :
658 22286 : rTo.mnAscent = 0;
659 22286 : rTo.mnDescent = 0;
660 22286 : rTo.mnExtLeading = 0;
661 22286 : rTo.mnSlant = 0;
662 22286 : rTo.mnWidth = mnWidth;
663 :
664 : // Calculating ascender and descender:
665 : // FreeType >= 2.4.6 does the right thing, so we just use what it gives us,
666 : // for earlier versions we emulate its behaviour;
667 : // take them from 'hhea' table,
668 : // if zero take them from 'OS/2' table,
669 : // if zero take them from FreeType's font metrics
670 22286 : if (nFTVERSION >= 2406)
671 : {
672 22286 : const FT_Size_Metrics& rMetrics = maFaceFT->size->metrics;
673 22286 : rTo.mnAscent = (rMetrics.ascender + 32) >> 6;
674 22286 : rTo.mnDescent = (-rMetrics.descender + 32) >> 6;
675 22286 : rTo.mnExtLeading = ((rMetrics.height + 32) >> 6) - (rTo.mnAscent + rTo.mnDescent);
676 : }
677 : else
678 : {
679 0 : const TT_HoriHeader* pHHea = (const TT_HoriHeader*)FT_Get_Sfnt_Table(maFaceFT, ft_sfnt_hhea);
680 0 : if (pHHea)
681 : {
682 0 : rTo.mnAscent = pHHea->Ascender * fScale + 0.5;
683 0 : rTo.mnDescent = -pHHea->Descender * fScale + 0.5;
684 0 : rTo.mnExtLeading = pHHea->Line_Gap * fScale + 0.5;
685 : }
686 :
687 0 : if (!(rTo.mnAscent || rTo.mnDescent))
688 : {
689 0 : if (pOS2 && (pOS2->version != 0xFFFF))
690 : {
691 0 : if (pOS2->sTypoAscender || pOS2->sTypoDescender)
692 : {
693 0 : rTo.mnAscent = pOS2->sTypoAscender * fScale + 0.5;
694 0 : rTo.mnDescent = -pOS2->sTypoDescender * fScale + 0.5;
695 0 : rTo.mnExtLeading = pOS2->sTypoLineGap * fScale + 0.5;
696 : }
697 : else
698 : {
699 0 : rTo.mnAscent = pOS2->usWinAscent * fScale + 0.5;
700 0 : rTo.mnDescent = pOS2->usWinDescent * fScale + 0.5;
701 0 : rTo.mnExtLeading = 0;
702 : }
703 : }
704 : }
705 :
706 0 : if (!(rTo.mnAscent || rTo.mnDescent))
707 : {
708 0 : const FT_Size_Metrics& rMetrics = maFaceFT->size->metrics;
709 0 : rTo.mnAscent = (rMetrics.ascender + 32) >> 6;
710 0 : rTo.mnDescent = (-rMetrics.descender + 32) >> 6;
711 0 : rTo.mnExtLeading = ((rMetrics.height + 32) >> 6) - (rTo.mnAscent + rTo.mnDescent);
712 : }
713 : }
714 :
715 22286 : rTo.mnIntLeading = rTo.mnAscent + rTo.mnDescent - (maFaceFT->units_per_EM * fScale + 0.5);
716 :
717 22286 : if( pOS2 && (pOS2->version != 0xFFFF) )
718 : {
719 : // map the panose info from the OS2 table to their VCL counterparts
720 21688 : switch( pOS2->panose[0] )
721 : {
722 0 : case 1: rTo.SetFamilyType( FAMILY_ROMAN ); break;
723 19954 : case 2: rTo.SetFamilyType( FAMILY_SWISS ); break;
724 0 : case 3: rTo.SetFamilyType( FAMILY_MODERN ); break;
725 0 : case 4: rTo.SetFamilyType( FAMILY_SCRIPT ); break;
726 1734 : case 5: rTo.SetFamilyType( FAMILY_DECORATIVE ); break;
727 : // TODO: is it reasonable to override the attribute with DONTKNOW?
728 : case 0: // fall through
729 0 : default: rTo.meFamilyType = FAMILY_DONTKNOW; break;
730 : }
731 :
732 21688 : switch( pOS2->panose[3] )
733 : {
734 : case 2: // fall through
735 : case 3: // fall through
736 : case 4: // fall through
737 : case 5: // fall through
738 : case 6: // fall through
739 : case 7: // fall through
740 19702 : case 8: rTo.SetPitch( PITCH_VARIABLE ); break;
741 248 : case 9: rTo.SetPitch( PITCH_FIXED ); break;
742 : // TODO: is it reasonable to override the attribute with DONTKNOW?
743 : case 0: // fall through
744 : case 1: // fall through
745 1738 : default: rTo.SetPitch( PITCH_DONTKNOW ); break;
746 : }
747 : }
748 :
749 : // initialize kashida width
750 : // TODO: what if there are different versions of this glyph available
751 22286 : const int nKashidaGlyphId = GetRawGlyphIndex( 0x0640 );
752 22286 : if( nKashidaGlyphId )
753 : {
754 3204 : GlyphData aGlyphData;
755 3204 : InitGlyphData( nKashidaGlyphId, aGlyphData );
756 3204 : rTo.mnMinKashida = aGlyphData.GetMetric().GetCharWidth();
757 : }
758 22286 : }
759 :
760 138981 : static inline void SplitGlyphFlags( const ServerFont& rFont, sal_GlyphId& rGlyphId, int& nGlyphFlags )
761 : {
762 138981 : nGlyphFlags = rGlyphId & GF_FLAGMASK;
763 138981 : rGlyphId &= GF_IDXMASK;
764 :
765 138981 : if( rGlyphId & GF_ISCHAR )
766 0 : rGlyphId = rFont.GetRawGlyphIndex( rGlyphId );
767 138981 : }
768 :
769 138826 : int ServerFont::ApplyGlyphTransform( int nGlyphFlags,
770 : FT_Glyph pGlyphFT, bool bForBitmapProcessing ) const
771 : {
772 138826 : int nAngle = GetFontSelData().mnOrientation;
773 : // shortcut most common case
774 138826 : if( !nAngle && !nGlyphFlags )
775 135161 : return nAngle;
776 :
777 3665 : const FT_Size_Metrics& rMetrics = maFaceFT->size->metrics;
778 : FT_Vector aVector;
779 : FT_Matrix aMatrix;
780 :
781 3665 : bool bStretched = false;
782 :
783 3665 : switch( nGlyphFlags & GF_ROTMASK )
784 : {
785 : default: // straight
786 3665 : aVector.x = 0;
787 3665 : aVector.y = 0;
788 3665 : aMatrix.xx = +mnCos;
789 3665 : aMatrix.yy = +mnCos;
790 3665 : aMatrix.xy = -mnSin;
791 3665 : aMatrix.yx = +mnSin;
792 3665 : break;
793 : case GF_ROTL: // left
794 0 : nAngle += 900;
795 0 : bStretched = (mfStretch != 1.0);
796 0 : aVector.x = (FT_Pos)(+rMetrics.descender * mfStretch);
797 0 : aVector.y = -rMetrics.ascender;
798 0 : aMatrix.xx = (FT_Pos)(-mnSin / mfStretch);
799 0 : aMatrix.yy = (FT_Pos)(-mnSin * mfStretch);
800 0 : aMatrix.xy = (FT_Pos)(-mnCos * mfStretch);
801 0 : aMatrix.yx = (FT_Pos)(+mnCos / mfStretch);
802 0 : break;
803 : case GF_ROTR: // right
804 0 : nAngle -= 900;
805 0 : bStretched = (mfStretch != 1.0);
806 0 : aVector.x = -maFaceFT->glyph->metrics.horiAdvance;
807 0 : aVector.x += (FT_Pos)(rMetrics.descender * mnSin/65536.0);
808 0 : aVector.y = (FT_Pos)(-rMetrics.descender * mfStretch * mnCos/65536.0);
809 0 : aMatrix.xx = (FT_Pos)(+mnSin / mfStretch);
810 0 : aMatrix.yy = (FT_Pos)(+mnSin * mfStretch);
811 0 : aMatrix.xy = (FT_Pos)(+mnCos * mfStretch);
812 0 : aMatrix.yx = (FT_Pos)(-mnCos / mfStretch);
813 0 : break;
814 : }
815 :
816 7330 : while( nAngle < 0 )
817 0 : nAngle += 3600;
818 :
819 3665 : if( pGlyphFT->format != FT_GLYPH_FORMAT_BITMAP )
820 : {
821 3665 : FT_Glyph_Transform( pGlyphFT, NULL, &aVector );
822 :
823 : // orthogonal transforms are better handled by bitmap operations
824 3665 : if( bStretched || (bForBitmapProcessing && (nAngle % 900) != 0) )
825 : {
826 : // apply non-orthogonal or stretch transformations
827 612 : FT_Glyph_Transform( pGlyphFT, &aMatrix, NULL );
828 612 : nAngle = 0;
829 : }
830 : }
831 : else
832 : {
833 : // FT<=2005 ignores transforms for bitmaps, so do it manually
834 0 : FT_BitmapGlyph pBmpGlyphFT = reinterpret_cast<FT_BitmapGlyph>(pGlyphFT);
835 0 : pBmpGlyphFT->left += (aVector.x + 32) >> 6;
836 0 : pBmpGlyphFT->top += (aVector.y + 32) >> 6;
837 : }
838 :
839 3665 : return nAngle;
840 : }
841 :
842 41593335 : sal_GlyphId ServerFont::GetRawGlyphIndex(sal_UCS4 aChar, sal_UCS4 aVS) const
843 : {
844 41593335 : if( mpFontInfo->IsSymbolFont() )
845 : {
846 1124 : if( !FT_IS_SFNT( maFaceFT ) )
847 : {
848 1124 : if( (aChar & 0xFF00) == 0xF000 )
849 248 : aChar &= 0xFF; // PS font symbol mapping
850 876 : else if( aChar > 0xFF )
851 244 : return 0;
852 : }
853 : }
854 :
855 41593091 : int nGlyphIndex = 0;
856 : #if HAVE_FT_FACE_GETCHARVARIANTINDEX
857 : // If asked, check first for variant glyph with the given Unicode variation
858 : // selector. This is quite uncommon so we don't bother with caching here.
859 : // Disabled for buggy FreeType versions:
860 : // https://bugzilla.mozilla.org/show_bug.cgi?id=618406#c8
861 41593091 : if (aVS && nFTVERSION >= 2404)
862 0 : nGlyphIndex = FT_Face_GetCharVariantIndex(maFaceFT, aChar, aVS);
863 : #endif
864 :
865 41593091 : if (nGlyphIndex == 0)
866 : {
867 : // cache glyph indexes in font info to share between different sizes
868 41593091 : nGlyphIndex = mpFontInfo->GetGlyphIndex( aChar );
869 41593091 : if( nGlyphIndex < 0 )
870 : {
871 37694 : nGlyphIndex = FT_Get_Char_Index( maFaceFT, aChar );
872 37694 : if( !nGlyphIndex)
873 : {
874 : // check if symbol aliasing helps
875 1045 : if( (aChar <= 0x00FF) && mpFontInfo->IsSymbolFont() )
876 0 : nGlyphIndex = FT_Get_Char_Index( maFaceFT, aChar | 0xF000 );
877 : }
878 37694 : mpFontInfo->CacheGlyphIndex( aChar, nGlyphIndex );
879 : }
880 : }
881 :
882 41593091 : return sal_GlyphId( nGlyphIndex);
883 : }
884 :
885 41530408 : sal_GlyphId ServerFont::FixupGlyphIndex( sal_GlyphId aGlyphId, sal_UCS4 aChar ) const
886 : {
887 41530408 : int nGlyphFlags = GF_NONE;
888 :
889 : // do glyph substitution if necessary
890 : // CJK vertical writing needs special treatment
891 41530408 : if( GetFontSelData().mbVertical )
892 : {
893 : // TODO: rethink when GSUB is used for non-vertical case
894 1142 : GlyphSubstitution::const_iterator it = maGlyphSubstitution.find( aGlyphId );
895 1142 : if( it == maGlyphSubstitution.end() )
896 : {
897 1142 : sal_GlyphId nTemp = GetVerticalChar( aChar );
898 1142 : if( nTemp ) // is substitution possible
899 0 : nTemp = GetRawGlyphIndex( nTemp );
900 1142 : if( nTemp ) // substitute manually if sensible
901 0 : aGlyphId = nTemp | (GF_GSUB | GF_ROTL);
902 : else
903 1142 : nGlyphFlags |= GetVerticalFlags( aChar );
904 : }
905 : else
906 : {
907 : // for vertical GSUB also compensate for nOrientation=2700
908 0 : aGlyphId = (*it).second;
909 0 : nGlyphFlags |= GF_GSUB | GF_ROTL;
910 : }
911 : }
912 :
913 41530408 : if( aGlyphId != 0 )
914 41528116 : aGlyphId |= nGlyphFlags;
915 :
916 41530408 : return aGlyphId;
917 : }
918 :
919 0 : sal_GlyphId ServerFont::GetGlyphIndex( sal_UCS4 aChar ) const
920 : {
921 0 : sal_GlyphId aGlyphId = GetRawGlyphIndex( aChar );
922 0 : aGlyphId = FixupGlyphIndex( aGlyphId, aChar );
923 0 : return aGlyphId;
924 : }
925 :
926 113143 : static int lcl_GetCharWidth( FT_FaceRec_* pFaceFT, double fStretch, int nGlyphFlags )
927 : {
928 113143 : int nCharWidth = pFaceFT->glyph->metrics.horiAdvance;
929 :
930 113143 : if( nGlyphFlags & GF_ROTMASK ) // for bVertical rotated glyphs
931 : {
932 0 : const FT_Size_Metrics& rMetrics = pFaceFT->size->metrics;
933 0 : nCharWidth = (int)((rMetrics.height + rMetrics.descender) * fStretch);
934 : }
935 :
936 113143 : return (nCharWidth + 32) >> 6;
937 : }
938 :
939 113177 : void ServerFont::InitGlyphData( sal_GlyphId aGlyphId, GlyphData& rGD ) const
940 : {
941 113177 : FT_Activate_Size( maSizeFT );
942 :
943 : int nGlyphFlags;
944 113177 : SplitGlyphFlags( *this, aGlyphId, nGlyphFlags );
945 :
946 113177 : int nLoadFlags = mnLoadFlags;
947 :
948 : // if( mbArtItalic )
949 : // nLoadFlags |= FT_LOAD_NO_BITMAP;
950 :
951 113177 : FT_Error rc = FT_Load_Glyph( maFaceFT, aGlyphId, nLoadFlags );
952 :
953 113177 : if( rc != FT_Err_Ok )
954 : {
955 : // we get here e.g. when a PS font lacks the default glyph
956 0 : rGD.SetCharWidth( 0 );
957 0 : rGD.SetDelta( 0, 0 );
958 0 : rGD.SetOffset( 0, 0 );
959 0 : rGD.SetSize( Size( 0, 0 ) );
960 113177 : return;
961 : }
962 :
963 113177 : const bool bOriginallyZeroWidth = (maFaceFT->glyph->metrics.horiAdvance == 0);
964 113177 : if (mbArtBold)
965 18 : FT_GlyphSlot_Embolden(maFaceFT->glyph);
966 :
967 113177 : const int nCharWidth = bOriginallyZeroWidth ? 0 : lcl_GetCharWidth( maFaceFT, mfStretch, nGlyphFlags );
968 113177 : rGD.SetCharWidth( nCharWidth );
969 :
970 : FT_Glyph pGlyphFT;
971 113177 : rc = FT_Get_Glyph( maFaceFT->glyph, &pGlyphFT );
972 :
973 113177 : ApplyGlyphTransform( nGlyphFlags, pGlyphFT, false );
974 113177 : rGD.SetDelta( (pGlyphFT->advance.x + 0x8000) >> 16, -((pGlyphFT->advance.y + 0x8000) >> 16) );
975 :
976 : FT_BBox aBbox;
977 113177 : FT_Glyph_Get_CBox( pGlyphFT, FT_GLYPH_BBOX_PIXELS, &aBbox );
978 113177 : if( aBbox.yMin > aBbox.yMax ) // circumvent freetype bug
979 : {
980 0 : int t=aBbox.yMin; aBbox.yMin=aBbox.yMax, aBbox.yMax=t;
981 : }
982 :
983 113177 : rGD.SetOffset( aBbox.xMin, -aBbox.yMax );
984 113177 : rGD.SetSize( Size( (aBbox.xMax-aBbox.xMin+1), (aBbox.yMax-aBbox.yMin) ) );
985 :
986 113177 : FT_Done_Glyph( pGlyphFT );
987 : }
988 :
989 0 : bool ServerFont::GetAntialiasAdvice( void ) const
990 : {
991 0 : if( GetFontSelData().mbNonAntialiased || (mnPrioAntiAlias<=0) )
992 0 : return false;
993 0 : bool bAdviseAA = true;
994 : // TODO: also use GASP info
995 0 : return bAdviseAA;
996 : }
997 :
998 0 : bool ServerFont::GetGlyphBitmap1( sal_GlyphId aGlyphId, RawBitmap& rRawBitmap ) const
999 : {
1000 0 : FT_Activate_Size( maSizeFT );
1001 :
1002 : int nGlyphFlags;
1003 0 : SplitGlyphFlags( *this, aGlyphId, nGlyphFlags );
1004 :
1005 0 : FT_Int nLoadFlags = mnLoadFlags;
1006 : // #i70930# force mono-hinting for monochrome text
1007 0 : nLoadFlags &= ~0xF0000;
1008 0 : nLoadFlags |= FT_LOAD_TARGET_MONO;
1009 :
1010 0 : if( mbArtItalic )
1011 0 : nLoadFlags |= FT_LOAD_NO_BITMAP;
1012 :
1013 : // for 0/90/180/270 degree fonts enable hinting even if not advisable
1014 : // non-hinted and non-antialiased bitmaps just look too ugly
1015 0 : if( (mnCos==0 || mnSin==0) && (mnPrioAutoHint > 0) )
1016 0 : nLoadFlags &= ~FT_LOAD_NO_HINTING;
1017 :
1018 0 : if( mnPrioEmbedded <= mnPrioAutoHint )
1019 0 : nLoadFlags |= FT_LOAD_NO_BITMAP;
1020 :
1021 0 : FT_Error rc = FT_Load_Glyph( maFaceFT, aGlyphId, nLoadFlags );
1022 :
1023 0 : if( rc != FT_Err_Ok )
1024 0 : return false;
1025 :
1026 0 : if (mbArtBold)
1027 0 : FT_GlyphSlot_Embolden(maFaceFT->glyph);
1028 :
1029 : FT_Glyph pGlyphFT;
1030 0 : rc = FT_Get_Glyph( maFaceFT->glyph, &pGlyphFT );
1031 0 : if( rc != FT_Err_Ok )
1032 0 : return false;
1033 :
1034 0 : int nAngle = ApplyGlyphTransform( nGlyphFlags, pGlyphFT, true );
1035 :
1036 0 : if( mbArtItalic )
1037 : {
1038 : FT_Matrix aMatrix;
1039 0 : aMatrix.xx = aMatrix.yy = 0x10000L;
1040 0 : aMatrix.xy = 0x6000L, aMatrix.yx = 0;
1041 0 : FT_Glyph_Transform( pGlyphFT, &aMatrix, NULL );
1042 : }
1043 :
1044 : // Check for zero area bounding boxes as this crashes some versions of FT.
1045 : // This also provides a handy short cut as much of the code following
1046 : // becomes an expensive nop when a glyph covers no pixels.
1047 : FT_BBox cbox;
1048 0 : FT_Glyph_Get_CBox(pGlyphFT, ft_glyph_bbox_unscaled, &cbox);
1049 :
1050 0 : if( (cbox.xMax - cbox.xMin) == 0 || (cbox.yMax - cbox.yMin == 0) )
1051 : {
1052 0 : nAngle = 0;
1053 0 : memset(&rRawBitmap, 0, sizeof rRawBitmap);
1054 0 : FT_Done_Glyph( pGlyphFT );
1055 0 : return true;
1056 : }
1057 :
1058 0 : if( pGlyphFT->format != FT_GLYPH_FORMAT_BITMAP )
1059 : {
1060 0 : if( pGlyphFT->format == FT_GLYPH_FORMAT_OUTLINE )
1061 0 : ((FT_OutlineGlyphRec*)pGlyphFT)->outline.flags |= FT_OUTLINE_HIGH_PRECISION;
1062 0 : FT_Render_Mode nRenderMode = FT_RENDER_MODE_MONO;
1063 :
1064 0 : rc = FT_Glyph_To_Bitmap( &pGlyphFT, nRenderMode, NULL, true );
1065 0 : if( rc != FT_Err_Ok )
1066 : {
1067 0 : FT_Done_Glyph( pGlyphFT );
1068 0 : return false;
1069 : }
1070 : }
1071 :
1072 0 : const FT_BitmapGlyph pBmpGlyphFT = reinterpret_cast<const FT_BitmapGlyph>(pGlyphFT);
1073 : // NOTE: autohinting in FT<=2.0.2 miscalculates the offsets below by +-1
1074 0 : rRawBitmap.mnXOffset = +pBmpGlyphFT->left;
1075 0 : rRawBitmap.mnYOffset = -pBmpGlyphFT->top;
1076 :
1077 0 : const FT_Bitmap& rBitmapFT = pBmpGlyphFT->bitmap;
1078 0 : rRawBitmap.mnHeight = rBitmapFT.rows;
1079 0 : rRawBitmap.mnBitCount = 1;
1080 0 : rRawBitmap.mnWidth = rBitmapFT.width;
1081 0 : rRawBitmap.mnScanlineSize = rBitmapFT.pitch;
1082 :
1083 0 : const sal_uLong nNeededSize = rRawBitmap.mnScanlineSize * rRawBitmap.mnHeight;
1084 :
1085 0 : if( rRawBitmap.mnAllocated < nNeededSize )
1086 : {
1087 0 : rRawBitmap.mnAllocated = 2*nNeededSize;
1088 0 : rRawBitmap.mpBits.reset(new unsigned char[ rRawBitmap.mnAllocated ]);
1089 : }
1090 :
1091 0 : if (!mbArtBold)
1092 : {
1093 0 : memcpy( rRawBitmap.mpBits.get(), rBitmapFT.buffer, nNeededSize );
1094 : }
1095 : else
1096 : {
1097 0 : memset( rRawBitmap.mpBits.get(), 0, nNeededSize );
1098 0 : const unsigned char* pSrcLine = rBitmapFT.buffer;
1099 0 : unsigned char* pDstLine = rRawBitmap.mpBits.get();
1100 0 : for( int h = rRawBitmap.mnHeight; --h >= 0; )
1101 : {
1102 0 : memcpy( pDstLine, pSrcLine, rBitmapFT.pitch );
1103 0 : pDstLine += rRawBitmap.mnScanlineSize;
1104 0 : pSrcLine += rBitmapFT.pitch;
1105 : }
1106 :
1107 0 : unsigned char* p = rRawBitmap.mpBits.get();
1108 0 : for( sal_uLong y=0; y < rRawBitmap.mnHeight; y++ )
1109 : {
1110 0 : unsigned char nLastByte = 0;
1111 0 : for( sal_uLong x=0; x < rRawBitmap.mnScanlineSize; x++ )
1112 : {
1113 0 : unsigned char nTmp = p[x] << 7;
1114 0 : p[x] |= (p[x] >> 1) | nLastByte;
1115 0 : nLastByte = nTmp;
1116 : }
1117 0 : p += rRawBitmap.mnScanlineSize;
1118 : }
1119 : }
1120 :
1121 0 : FT_Done_Glyph( pGlyphFT );
1122 :
1123 : // special case for 0/90/180/270 degree orientation
1124 0 : switch( nAngle )
1125 : {
1126 : case -900:
1127 : case +900:
1128 : case +1800:
1129 : case +2700:
1130 0 : rRawBitmap.Rotate( nAngle );
1131 0 : break;
1132 : }
1133 :
1134 0 : return true;
1135 : }
1136 :
1137 23172 : bool ServerFont::GetGlyphBitmap8( sal_GlyphId aGlyphId, RawBitmap& rRawBitmap ) const
1138 : {
1139 23172 : FT_Activate_Size( maSizeFT );
1140 :
1141 : int nGlyphFlags;
1142 23172 : SplitGlyphFlags( *this, aGlyphId, nGlyphFlags );
1143 :
1144 23172 : FT_Int nLoadFlags = mnLoadFlags;
1145 :
1146 23172 : if( mbArtItalic )
1147 28 : nLoadFlags |= FT_LOAD_NO_BITMAP;
1148 :
1149 23172 : if( (nGlyphFlags & GF_UNHINTED) || (mnPrioAutoHint < mnPrioAntiAlias) )
1150 0 : nLoadFlags |= FT_LOAD_NO_HINTING;
1151 :
1152 23172 : if( mnPrioEmbedded <= mnPrioAntiAlias )
1153 0 : nLoadFlags |= FT_LOAD_NO_BITMAP;
1154 :
1155 23172 : FT_Error rc = FT_Load_Glyph( maFaceFT, aGlyphId, nLoadFlags );
1156 :
1157 23172 : if( rc != FT_Err_Ok )
1158 0 : return false;
1159 :
1160 23172 : if (mbArtBold)
1161 4 : FT_GlyphSlot_Embolden(maFaceFT->glyph);
1162 :
1163 : FT_Glyph pGlyphFT;
1164 23172 : rc = FT_Get_Glyph( maFaceFT->glyph, &pGlyphFT );
1165 23172 : if( rc != FT_Err_Ok )
1166 0 : return false;
1167 :
1168 23172 : int nAngle = ApplyGlyphTransform( nGlyphFlags, pGlyphFT, true );
1169 :
1170 23172 : if( mbArtItalic )
1171 : {
1172 : FT_Matrix aMatrix;
1173 28 : aMatrix.xx = aMatrix.yy = 0x10000L;
1174 28 : aMatrix.xy = 0x6000L, aMatrix.yx = 0;
1175 28 : FT_Glyph_Transform( pGlyphFT, &aMatrix, NULL );
1176 : }
1177 :
1178 23172 : if( pGlyphFT->format == FT_GLYPH_FORMAT_OUTLINE )
1179 23172 : ((FT_OutlineGlyph)pGlyphFT)->outline.flags |= FT_OUTLINE_HIGH_PRECISION;
1180 :
1181 23172 : bool bEmbedded = (pGlyphFT->format == FT_GLYPH_FORMAT_BITMAP);
1182 23172 : if( !bEmbedded )
1183 : {
1184 23172 : rc = FT_Glyph_To_Bitmap( &pGlyphFT, FT_RENDER_MODE_NORMAL, NULL, true );
1185 23172 : if( rc != FT_Err_Ok )
1186 : {
1187 0 : FT_Done_Glyph( pGlyphFT );
1188 0 : return false;
1189 : }
1190 : }
1191 :
1192 23172 : const FT_BitmapGlyph pBmpGlyphFT = reinterpret_cast<const FT_BitmapGlyph>(pGlyphFT);
1193 23172 : rRawBitmap.mnXOffset = +pBmpGlyphFT->left;
1194 23172 : rRawBitmap.mnYOffset = -pBmpGlyphFT->top;
1195 :
1196 23172 : const FT_Bitmap& rBitmapFT = pBmpGlyphFT->bitmap;
1197 23172 : rRawBitmap.mnHeight = rBitmapFT.rows;
1198 23172 : rRawBitmap.mnWidth = rBitmapFT.width;
1199 23172 : rRawBitmap.mnBitCount = 8;
1200 23172 : rRawBitmap.mnScanlineSize = bEmbedded ? rBitmapFT.width : rBitmapFT.pitch;
1201 23172 : rRawBitmap.mnScanlineSize = (rRawBitmap.mnScanlineSize + 3) & -4;
1202 :
1203 23172 : const sal_uLong nNeededSize = rRawBitmap.mnScanlineSize * rRawBitmap.mnHeight;
1204 23172 : if( rRawBitmap.mnAllocated < nNeededSize )
1205 : {
1206 22396 : rRawBitmap.mnAllocated = 2*nNeededSize;
1207 22396 : rRawBitmap.mpBits.reset(new unsigned char[ rRawBitmap.mnAllocated ]);
1208 : }
1209 :
1210 23172 : const unsigned char* pSrc = rBitmapFT.buffer;
1211 23172 : unsigned char* pDest = rRawBitmap.mpBits.get();
1212 23172 : if( !bEmbedded )
1213 : {
1214 282078 : for( int y = rRawBitmap.mnHeight, x; --y >= 0 ; )
1215 : {
1216 3671673 : for( x = 0; x < rBitmapFT.width; ++x )
1217 3435939 : *(pDest++) = *(pSrc++);
1218 609427 : for(; x < int(rRawBitmap.mnScanlineSize); ++x )
1219 373693 : *(pDest++) = 0;
1220 : }
1221 : }
1222 : else
1223 : {
1224 0 : for( int y = rRawBitmap.mnHeight, x; --y >= 0 ; )
1225 : {
1226 0 : unsigned char nSrc = 0;
1227 0 : for( x = 0; x < rBitmapFT.width; ++x, nSrc+=nSrc )
1228 : {
1229 0 : if( (x & 7) == 0 )
1230 0 : nSrc = *(pSrc++);
1231 0 : *(pDest++) = (0x7F - nSrc) >> 8;
1232 : }
1233 0 : for(; x < int(rRawBitmap.mnScanlineSize); ++x )
1234 0 : *(pDest++) = 0;
1235 : }
1236 : }
1237 :
1238 23172 : if( !bEmbedded && mbUseGamma )
1239 : {
1240 0 : unsigned char* p = rRawBitmap.mpBits.get();
1241 0 : for( sal_uLong y=0; y < rRawBitmap.mnHeight; y++ )
1242 : {
1243 0 : for( sal_uLong x=0; x < rRawBitmap.mnWidth; x++ )
1244 : {
1245 0 : p[x] = aGammaTable[ p[x] ];
1246 : }
1247 0 : p += rRawBitmap.mnScanlineSize;
1248 : }
1249 : }
1250 :
1251 23172 : FT_Done_Glyph( pGlyphFT );
1252 :
1253 : // special case for 0/90/180/270 degree orientation
1254 23172 : switch( nAngle )
1255 : {
1256 : case -900:
1257 : case +900:
1258 : case +1800:
1259 : case +2700:
1260 744 : rRawBitmap.Rotate( nAngle );
1261 744 : break;
1262 : }
1263 :
1264 23172 : return true;
1265 : }
1266 :
1267 : // determine unicode ranges in font
1268 :
1269 13910 : const FontCharMapPtr ServerFont::GetFontCharMap() const
1270 : {
1271 13910 : const FontCharMapPtr pFCMap = mpFontInfo->GetFontCharMap();
1272 13910 : return pFCMap;
1273 : }
1274 :
1275 13910 : const FontCharMapPtr FtFontInfo::GetFontCharMap()
1276 : {
1277 : // check if the charmap is already cached
1278 13910 : if( mpFontCharMap )
1279 13536 : return mpFontCharMap;
1280 :
1281 : // get the charmap and cache it
1282 374 : CmapResult aCmapResult;
1283 374 : bool bOK = GetFontCodeRanges( aCmapResult );
1284 374 : if( bOK )
1285 : {
1286 374 : FontCharMapPtr pFontCharMap( new FontCharMap ( aCmapResult ) );
1287 374 : mpFontCharMap = pFontCharMap;
1288 : }
1289 : else
1290 : {
1291 0 : FontCharMapPtr pFontCharMap( new FontCharMap() );
1292 0 : mpFontCharMap = pFontCharMap;
1293 : }
1294 : // mpFontCharMap on either branch now has a refcount of 1
1295 374 : return mpFontCharMap;
1296 : }
1297 :
1298 : // TODO: merge into method GetFontCharMap()
1299 374 : bool FtFontInfo::GetFontCodeRanges( CmapResult& rResult ) const
1300 : {
1301 374 : rResult.mbSymbolic = IsSymbolFont();
1302 :
1303 : // TODO: is the full CmapResult needed on platforms calling this?
1304 374 : if( FT_IS_SFNT( maFaceFT ) )
1305 : {
1306 368 : sal_uLong nLength = 0;
1307 368 : const unsigned char* pCmap = GetTable( "cmap", &nLength );
1308 368 : if( pCmap && (nLength > 0) )
1309 368 : if( ParseCMAP( pCmap, nLength, rResult ) )
1310 368 : return true;
1311 : }
1312 :
1313 : typedef std::vector<sal_uInt32> U32Vector;
1314 6 : U32Vector aCodes;
1315 :
1316 : // FT's coverage is available since FT>=2.1.0 (OOo-baseline>=2.1.4 => ok)
1317 6 : aCodes.reserve( 0x1000 );
1318 : FT_UInt nGlyphIndex;
1319 6 : for( sal_uInt32 cCode = FT_Get_First_Char( maFaceFT, &nGlyphIndex );; )
1320 : {
1321 228 : if( !nGlyphIndex )
1322 6 : break;
1323 222 : aCodes.push_back( cCode ); // first code inside range
1324 222 : sal_uInt32 cNext = cCode;
1325 3426 : do cNext = FT_Get_Next_Char( maFaceFT, cCode, &nGlyphIndex ); while( cNext == ++cCode );
1326 222 : aCodes.push_back( cCode ); // first code outside range
1327 222 : cCode = cNext;
1328 222 : }
1329 :
1330 6 : const int nCount = aCodes.size();
1331 6 : if( !nCount) {
1332 0 : if( !rResult.mbSymbolic )
1333 0 : return false;
1334 :
1335 : // we usually get here for Type1 symbol fonts
1336 0 : aCodes.push_back( 0xF020 );
1337 0 : aCodes.push_back( 0xF100 );
1338 : }
1339 :
1340 6 : sal_uInt32* pCodes = new sal_uInt32[ nCount ];
1341 450 : for( int i = 0; i < nCount; ++i )
1342 444 : pCodes[i] = aCodes[i];
1343 6 : rResult.mpRangeCodes = pCodes;
1344 6 : rResult.mnRangeCount = nCount / 2;
1345 6 : return true;
1346 : }
1347 :
1348 1712 : bool ServerFont::GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const
1349 : {
1350 1712 : bool bRet = false;
1351 :
1352 1712 : sal_uLong nLength = 0;
1353 : // load GSUB table
1354 1712 : const FT_Byte* pGSUB = mpFontInfo->GetTable("GSUB", &nLength);
1355 1712 : if (pGSUB)
1356 1700 : vcl::getTTScripts(rFontCapabilities.maGSUBScriptTags, pGSUB, nLength);
1357 :
1358 : // load OS/2 table
1359 1712 : const FT_Byte* pOS2 = mpFontInfo->GetTable("OS/2", &nLength);
1360 1712 : if (pOS2)
1361 : {
1362 : bRet = vcl::getTTCoverage(
1363 : rFontCapabilities.maUnicodeRange,
1364 : rFontCapabilities.maCodePageRange,
1365 1700 : pOS2, nLength);
1366 : }
1367 :
1368 1712 : return bRet;
1369 : }
1370 :
1371 : // outline stuff
1372 :
1373 : class PolyArgs
1374 : {
1375 : public:
1376 : PolyArgs( tools::PolyPolygon& rPolyPoly, sal_uInt16 nMaxPoints );
1377 : ~PolyArgs();
1378 :
1379 : void AddPoint( long nX, long nY, PolyFlags);
1380 : void ClosePolygon();
1381 :
1382 29816 : long GetPosX() const { return maPosition.x;}
1383 29816 : long GetPosY() const { return maPosition.y;}
1384 :
1385 : private:
1386 : tools::PolyPolygon& mrPolyPoly;
1387 :
1388 : Point* mpPointAry;
1389 : sal_uInt8* mpFlagAry;
1390 :
1391 : FT_Vector maPosition;
1392 : sal_uInt16 mnMaxPoints;
1393 : sal_uInt16 mnPoints;
1394 : sal_uInt16 mnPoly;
1395 : bool bHasOffline;
1396 : };
1397 :
1398 2477 : PolyArgs::PolyArgs( tools::PolyPolygon& rPolyPoly, sal_uInt16 nMaxPoints )
1399 : : mrPolyPoly(rPolyPoly),
1400 : mnMaxPoints(nMaxPoints),
1401 : mnPoints(0),
1402 : mnPoly(0),
1403 2477 : bHasOffline(false)
1404 : {
1405 2477 : mpPointAry = new Point[ mnMaxPoints ];
1406 2477 : mpFlagAry = new sal_uInt8 [ mnMaxPoints ];
1407 2477 : maPosition.x = maPosition.y = 0;
1408 2477 : }
1409 :
1410 2477 : PolyArgs::~PolyArgs()
1411 : {
1412 2477 : delete[] mpFlagAry;
1413 2477 : delete[] mpPointAry;
1414 2477 : }
1415 :
1416 116247 : void PolyArgs::AddPoint( long nX, long nY, PolyFlags aFlag )
1417 : {
1418 : DBG_ASSERT( (mnPoints < mnMaxPoints), "FTGlyphOutline: AddPoint overflow!" );
1419 116247 : if( mnPoints >= mnMaxPoints )
1420 116247 : return;
1421 :
1422 116247 : maPosition.x = nX;
1423 116247 : maPosition.y = nY;
1424 116247 : mpPointAry[ mnPoints ] = Point( nX, nY );
1425 116247 : mpFlagAry[ mnPoints++ ]= aFlag;
1426 116247 : bHasOffline |= (aFlag != POLY_NORMAL);
1427 : }
1428 :
1429 6189 : void PolyArgs::ClosePolygon()
1430 : {
1431 6189 : if( !mnPoly++ )
1432 8666 : return;
1433 :
1434 : // freetype seems to always close the polygon with an ON_CURVE point
1435 : // PolyPoly wants to close the polygon itself => remove last point
1436 : DBG_ASSERT( (mnPoints >= 2), "FTGlyphOutline: PolyFinishNum failed!" );
1437 3712 : --mnPoints;
1438 : DBG_ASSERT( (mpPointAry[0]==mpPointAry[mnPoints]), "FTGlyphOutline: PolyFinishEq failed!" );
1439 : DBG_ASSERT( (mpFlagAry[0]==POLY_NORMAL), "FTGlyphOutline: PolyFinishFE failed!" );
1440 : DBG_ASSERT( (mpFlagAry[mnPoints]==POLY_NORMAL), "FTGlyphOutline: PolyFinishFS failed!" );
1441 :
1442 3712 : Polygon aPoly( mnPoints, mpPointAry, (bHasOffline ? mpFlagAry : NULL) );
1443 :
1444 : // #i35928#
1445 : // This may be a invalid polygons, e.g. the last point is a control point.
1446 : // So close the polygon (and add the first point again) if the last point
1447 : // is a control point or different from first.
1448 : // #i48298#
1449 : // Now really duplicating the first point, to close or correct the
1450 : // polygon. Also no longer duplicating the flags, but enforcing
1451 : // POLY_NORMAL for the newly added last point.
1452 3712 : const sal_uInt16 nPolySize(aPoly.GetSize());
1453 3712 : if(nPolySize)
1454 : {
1455 10180 : if((aPoly.HasFlags() && POLY_CONTROL == aPoly.GetFlags(nPolySize - 1))
1456 5865 : || (aPoly.GetPoint(nPolySize - 1) != aPoly.GetPoint(0)))
1457 : {
1458 3626 : aPoly.SetSize(nPolySize + 1);
1459 3626 : aPoly.SetPoint(aPoly.GetPoint(0), nPolySize);
1460 :
1461 3626 : if(aPoly.HasFlags())
1462 : {
1463 2742 : aPoly.SetFlags(nPolySize, POLY_NORMAL);
1464 : }
1465 : }
1466 : }
1467 :
1468 3712 : mrPolyPoly.Insert( aPoly );
1469 3712 : mnPoints = 0;
1470 3712 : bHasOffline = false;
1471 : }
1472 :
1473 : extern "C" {
1474 :
1475 : // TODO: wait till all compilers accept that calling conventions
1476 : // for functions are the same independent of implementation constness,
1477 : // then uncomment the const-tokens in the function interfaces below
1478 3712 : static int FT_move_to( FT_Vector_CPtr p0, void* vpPolyArgs )
1479 : {
1480 3712 : PolyArgs& rA = *reinterpret_cast<PolyArgs*>(vpPolyArgs);
1481 :
1482 : // move_to implies a new polygon => finish old polygon first
1483 3712 : rA.ClosePolygon();
1484 :
1485 3712 : rA.AddPoint( p0->x, p0->y, POLY_NORMAL );
1486 3712 : return 0;
1487 : }
1488 :
1489 21413 : static int FT_line_to( FT_Vector_CPtr p1, void* vpPolyArgs )
1490 : {
1491 21413 : PolyArgs& rA = *reinterpret_cast<PolyArgs*>(vpPolyArgs);
1492 21413 : rA.AddPoint( p1->x, p1->y, POLY_NORMAL );
1493 21413 : return 0;
1494 : }
1495 :
1496 29816 : static int FT_conic_to( FT_Vector_CPtr p1, FT_Vector_CPtr p2, void* vpPolyArgs )
1497 : {
1498 29816 : PolyArgs& rA = *reinterpret_cast<PolyArgs*>(vpPolyArgs);
1499 :
1500 : // VCL's Polygon only knows cubic beziers
1501 29816 : const long nX1 = (2 * rA.GetPosX() + 4 * p1->x + 3) / 6;
1502 29816 : const long nY1 = (2 * rA.GetPosY() + 4 * p1->y + 3) / 6;
1503 29816 : rA.AddPoint( nX1, nY1, POLY_CONTROL );
1504 :
1505 29816 : const long nX2 = (2 * p2->x + 4 * p1->x + 3) / 6;
1506 29816 : const long nY2 = (2 * p2->y + 4 * p1->y + 3) / 6;
1507 29816 : rA.AddPoint( nX2, nY2, POLY_CONTROL );
1508 :
1509 29816 : rA.AddPoint( p2->x, p2->y, POLY_NORMAL );
1510 29816 : return 0;
1511 : }
1512 :
1513 558 : static int FT_cubic_to( FT_Vector_CPtr p1, FT_Vector_CPtr p2, FT_Vector_CPtr p3, void* vpPolyArgs )
1514 : {
1515 558 : PolyArgs& rA = *reinterpret_cast<PolyArgs*>(vpPolyArgs);
1516 558 : rA.AddPoint( p1->x, p1->y, POLY_CONTROL );
1517 558 : rA.AddPoint( p2->x, p2->y, POLY_CONTROL );
1518 558 : rA.AddPoint( p3->x, p3->y, POLY_NORMAL );
1519 558 : return 0;
1520 : }
1521 :
1522 : } // extern "C"
1523 :
1524 2632 : bool ServerFont::GetGlyphOutline( sal_GlyphId aGlyphId,
1525 : ::basegfx::B2DPolyPolygon& rB2DPolyPoly ) const
1526 : {
1527 2632 : if( maSizeFT )
1528 2632 : FT_Activate_Size( maSizeFT );
1529 :
1530 2632 : rB2DPolyPoly.clear();
1531 :
1532 : int nGlyphFlags;
1533 2632 : SplitGlyphFlags( *this, aGlyphId, nGlyphFlags );
1534 :
1535 2632 : FT_Int nLoadFlags = FT_LOAD_DEFAULT | FT_LOAD_IGNORE_TRANSFORM;
1536 :
1537 : #ifdef FT_LOAD_TARGET_LIGHT
1538 : // enable "light hinting" if available
1539 2632 : nLoadFlags |= FT_LOAD_TARGET_LIGHT;
1540 : #endif
1541 :
1542 2632 : FT_Error rc = FT_Load_Glyph( maFaceFT, aGlyphId, nLoadFlags );
1543 2632 : if( rc != FT_Err_Ok )
1544 0 : return false;
1545 :
1546 2632 : if (mbArtBold)
1547 0 : FT_GlyphSlot_Embolden(maFaceFT->glyph);
1548 :
1549 : FT_Glyph pGlyphFT;
1550 2632 : rc = FT_Get_Glyph( maFaceFT->glyph, &pGlyphFT );
1551 2632 : if( rc != FT_Err_Ok )
1552 0 : return false;
1553 :
1554 2632 : if( pGlyphFT->format != FT_GLYPH_FORMAT_OUTLINE )
1555 : {
1556 0 : FT_Done_Glyph( pGlyphFT );
1557 0 : return false;
1558 : }
1559 :
1560 2632 : if( mbArtItalic )
1561 : {
1562 : FT_Matrix aMatrix;
1563 0 : aMatrix.xx = aMatrix.yy = 0x10000L;
1564 0 : aMatrix.xy = 0x6000L, aMatrix.yx = 0;
1565 0 : FT_Glyph_Transform( pGlyphFT, &aMatrix, NULL );
1566 : }
1567 :
1568 2632 : FT_Outline& rOutline = reinterpret_cast<FT_OutlineGlyphRec*>(pGlyphFT)->outline;
1569 2632 : if( !rOutline.n_points ) // blank glyphs are ok
1570 : {
1571 155 : FT_Done_Glyph( pGlyphFT );
1572 155 : return true;
1573 : }
1574 :
1575 2477 : long nMaxPoints = 1 + rOutline.n_points * 3;
1576 2477 : tools::PolyPolygon aToolPolyPolygon;
1577 4954 : PolyArgs aPolyArg( aToolPolyPolygon, nMaxPoints );
1578 :
1579 2477 : /*int nAngle =*/ ApplyGlyphTransform( nGlyphFlags, pGlyphFT, false );
1580 :
1581 : FT_Outline_Funcs aFuncs;
1582 2477 : aFuncs.move_to = &FT_move_to;
1583 2477 : aFuncs.line_to = &FT_line_to;
1584 2477 : aFuncs.conic_to = &FT_conic_to;
1585 2477 : aFuncs.cubic_to = &FT_cubic_to;
1586 2477 : aFuncs.shift = 0;
1587 2477 : aFuncs.delta = 0;
1588 2477 : rc = FT_Outline_Decompose( &rOutline, &aFuncs, (void*)&aPolyArg );
1589 2477 : aPolyArg.ClosePolygon(); // close last polygon
1590 2477 : FT_Done_Glyph( pGlyphFT );
1591 :
1592 : // convert to basegfx polypolygon
1593 : // TODO: get rid of the intermediate tools polypolygon
1594 2477 : rB2DPolyPoly = aToolPolyPolygon.getB2DPolyPolygon();
1595 2477 : rB2DPolyPoly.transform(basegfx::tools::createScaleB2DHomMatrix( +1.0/(1<<6), -1.0/(1<<6) ));
1596 :
1597 4954 : return true;
1598 : }
1599 :
1600 9613 : bool ServerFont::ApplyGSUB( const FontSelectPattern& rFSD )
1601 : {
1602 : #define MKTAG(s) ((((((s[0]<<8)+s[1])<<8)+s[2])<<8)+s[3])
1603 :
1604 : typedef std::vector<sal_uLong> ReqFeatureTagList;
1605 9613 : ReqFeatureTagList aReqFeatureTagList;
1606 9613 : if( rFSD.mbVertical )
1607 12 : aReqFeatureTagList.push_back( MKTAG("vert") );
1608 : // TODO: request more features depending on script and language system
1609 :
1610 9613 : if( aReqFeatureTagList.empty()) // nothing to do
1611 9601 : return true;
1612 :
1613 : // load GSUB table into memory
1614 12 : sal_uLong nLength = 0;
1615 12 : const FT_Byte* const pGsubBase = mpFontInfo->GetTable( "GSUB", &nLength );
1616 12 : if( !pGsubBase )
1617 0 : return false;
1618 :
1619 : // parse GSUB header
1620 12 : const FT_Byte* pGsubHeader = pGsubBase;
1621 12 : const sal_uInt16 nOfsScriptList = GetUShort( pGsubHeader+4 );
1622 12 : const sal_uInt16 nOfsFeatureTable = GetUShort( pGsubHeader+6 );
1623 12 : const sal_uInt16 nOfsLookupList = GetUShort( pGsubHeader+8 );
1624 12 : pGsubHeader += 10;
1625 :
1626 : typedef std::vector<sal_uInt16> UshortList;
1627 24 : UshortList aFeatureIndexList;
1628 :
1629 : // parse Script Table
1630 12 : const FT_Byte* pScriptHeader = pGsubBase + nOfsScriptList;
1631 12 : const sal_uInt16 nCntScript = GetUShort( pScriptHeader+0 );
1632 12 : pScriptHeader += 2;
1633 50 : for( sal_uInt16 nScriptIndex = 0; nScriptIndex < nCntScript; ++nScriptIndex )
1634 : {
1635 38 : const sal_uInt16 nOfsScriptTable= GetUShort( pScriptHeader+4 );
1636 38 : pScriptHeader += 6;
1637 :
1638 38 : const FT_Byte* pScriptTable = pGsubBase + nOfsScriptList + nOfsScriptTable;
1639 38 : const sal_uInt16 nDefaultLangsysOfs = GetUShort( pScriptTable+0 );
1640 38 : const sal_uInt16 nCntLangSystem = GetUShort( pScriptTable+2 );
1641 38 : pScriptTable += 4;
1642 38 : sal_uInt16 nLangsysOffset = 0;
1643 :
1644 38 : if (nCntLangSystem != 0)
1645 : {
1646 22 : nLangsysOffset = GetUShort( pScriptTable+4 );
1647 : }
1648 :
1649 38 : if (nDefaultLangsysOfs != 0 && nDefaultLangsysOfs != nLangsysOffset)
1650 : {
1651 36 : const FT_Byte* pLangSys = pGsubBase + nOfsScriptList + nOfsScriptTable + nDefaultLangsysOfs;
1652 36 : const sal_uInt16 nReqFeatureIdx = GetUShort( pLangSys+2 );
1653 36 : const sal_uInt16 nCntFeature = GetUShort( pLangSys+4 );
1654 36 : pLangSys += 6;
1655 36 : aFeatureIndexList.push_back( nReqFeatureIdx );
1656 664 : for( sal_uInt16 i = 0; i < nCntFeature; ++i )
1657 : {
1658 628 : const sal_uInt16 nFeatureIndex = GetUShort( pLangSys );
1659 628 : pLangSys += 2;
1660 628 : aFeatureIndexList.push_back( nFeatureIndex );
1661 : }
1662 : }
1663 :
1664 38 : if( nLangsysOffset != 0 )
1665 : {
1666 22 : const FT_Byte* pLangSys = pGsubBase + nOfsScriptList + nOfsScriptTable + nLangsysOffset;
1667 22 : const sal_uInt16 nReqFeatureIdx = GetUShort( pLangSys+2 );
1668 22 : const sal_uInt16 nCntFeature = GetUShort( pLangSys+4 );
1669 22 : pLangSys += 6;
1670 22 : aFeatureIndexList.push_back( nReqFeatureIdx );
1671 314 : for( sal_uInt16 i = 0; i < nCntFeature; ++i )
1672 : {
1673 292 : const sal_uInt16 nFeatureIndex = GetUShort( pLangSys );
1674 292 : pLangSys += 2;
1675 292 : aFeatureIndexList.push_back( nFeatureIndex );
1676 : }
1677 : }
1678 : }
1679 :
1680 12 : if( aFeatureIndexList.empty() )
1681 0 : return true;
1682 :
1683 24 : UshortList aLookupIndexList;
1684 24 : UshortList aLookupOffsetList;
1685 :
1686 : // parse Feature Table
1687 12 : const FT_Byte* pFeatureHeader = pGsubBase + nOfsFeatureTable;
1688 12 : const sal_uInt16 nCntFeature = GetUShort( pFeatureHeader );
1689 12 : pFeatureHeader += 2;
1690 1380 : for( sal_uInt16 nFeatureIndex = 0; nFeatureIndex < nCntFeature; ++nFeatureIndex )
1691 : {
1692 1368 : const sal_uLong nTag = GetUInt( pFeatureHeader+0 ); // e.g. locl/vert/trad/smpl/liga/fina/...
1693 1368 : const sal_uInt16 nOffset= GetUShort( pFeatureHeader+4 );
1694 1368 : pFeatureHeader += 6;
1695 :
1696 : // short circuit some feature lookups
1697 1368 : if( aFeatureIndexList[0] != nFeatureIndex ) // required feature?
1698 : {
1699 1368 : const int nRequested = std::count( aFeatureIndexList.begin(), aFeatureIndexList.end(), nFeatureIndex);
1700 1368 : if( !nRequested ) // ignore features that are not requested
1701 1818 : continue;
1702 918 : const int nAvailable = std::count( aReqFeatureTagList.begin(), aReqFeatureTagList.end(), nTag);
1703 918 : if( !nAvailable ) // some fonts don't provide features they request!
1704 918 : continue;
1705 : }
1706 :
1707 0 : const FT_Byte* pFeatureTable = pGsubBase + nOfsFeatureTable + nOffset;
1708 0 : const sal_uInt16 nCntLookups = GetUShort( pFeatureTable+0 );
1709 0 : pFeatureTable += 2;
1710 0 : for( sal_uInt16 i = 0; i < nCntLookups; ++i )
1711 : {
1712 0 : const sal_uInt16 nLookupIndex = GetUShort( pFeatureTable );
1713 0 : pFeatureTable += 2;
1714 0 : aLookupIndexList.push_back( nLookupIndex );
1715 : }
1716 0 : if( nCntLookups == 0 ) //### hack needed by Mincho/Gothic/Mingliu/Simsun/...
1717 0 : aLookupIndexList.push_back( 0 );
1718 : }
1719 :
1720 : // parse Lookup List
1721 12 : const FT_Byte* pLookupHeader = pGsubBase + nOfsLookupList;
1722 12 : const sal_uInt16 nCntLookupTable = GetUShort( pLookupHeader );
1723 12 : pLookupHeader += 2;
1724 424 : for( sal_uInt16 nLookupIdx = 0; nLookupIdx < nCntLookupTable; ++nLookupIdx )
1725 : {
1726 412 : const sal_uInt16 nOffset = GetUShort( pLookupHeader );
1727 412 : pLookupHeader += 2;
1728 412 : if( std::count( aLookupIndexList.begin(), aLookupIndexList.end(), nLookupIdx ) )
1729 0 : aLookupOffsetList.push_back( nOffset );
1730 : }
1731 :
1732 12 : UshortList::const_iterator lookup_it = aLookupOffsetList.begin();
1733 12 : for(; lookup_it != aLookupOffsetList.end(); ++lookup_it )
1734 : {
1735 0 : const sal_uInt16 nOfsLookupTable = *lookup_it;
1736 0 : const FT_Byte* pLookupTable = pGsubBase + nOfsLookupList + nOfsLookupTable;
1737 0 : const sal_uInt16 eLookupType = GetUShort( pLookupTable+0 );
1738 0 : const sal_uInt16 nCntLookupSubtable = GetUShort( pLookupTable+4 );
1739 0 : pLookupTable += 6;
1740 :
1741 : // TODO: switch( eLookupType )
1742 0 : if( eLookupType != 1 ) // TODO: once we go beyond SingleSubst
1743 0 : continue;
1744 :
1745 0 : for( sal_uInt16 nSubTableIdx = 0; nSubTableIdx < nCntLookupSubtable; ++nSubTableIdx )
1746 : {
1747 0 : const sal_uInt16 nOfsSubLookupTable = GetUShort( pLookupTable );
1748 0 : pLookupTable += 2;
1749 0 : const FT_Byte* pSubLookup = pGsubBase + nOfsLookupList + nOfsLookupTable + nOfsSubLookupTable;
1750 :
1751 0 : const sal_uInt16 nFmtSubstitution = GetUShort( pSubLookup+0 );
1752 0 : const sal_uInt16 nOfsCoverage = GetUShort( pSubLookup+2 );
1753 0 : pSubLookup += 4;
1754 :
1755 : typedef std::pair<sal_uInt16,sal_uInt16> GlyphSubst;
1756 : typedef std::vector<GlyphSubst> SubstVector;
1757 0 : SubstVector aSubstVector;
1758 :
1759 0 : const FT_Byte* pCoverage = pGsubBase + nOfsLookupList + nOfsLookupTable + nOfsSubLookupTable + nOfsCoverage;
1760 0 : const sal_uInt16 nFmtCoverage = GetUShort( pCoverage+0 );
1761 0 : pCoverage += 2;
1762 0 : switch( nFmtCoverage )
1763 : {
1764 : case 1: // Coverage Format 1
1765 : {
1766 0 : const sal_uInt16 nCntGlyph = GetUShort( pCoverage );
1767 0 : pCoverage += 2;
1768 0 : aSubstVector.reserve( nCntGlyph );
1769 0 : for( sal_uInt16 i = 0; i < nCntGlyph; ++i )
1770 : {
1771 0 : const sal_uInt16 nGlyphId = GetUShort( pCoverage );
1772 0 : pCoverage += 2;
1773 0 : aSubstVector.push_back( GlyphSubst( nGlyphId, 0 ) );
1774 : }
1775 : }
1776 0 : break;
1777 :
1778 : case 2: // Coverage Format 2
1779 : {
1780 0 : const sal_uInt16 nCntRange = GetUShort( pCoverage );
1781 0 : pCoverage += 2;
1782 0 : for( int i = nCntRange; --i >= 0; )
1783 : {
1784 0 : const sal_uInt32 nGlyph0 = GetUShort( pCoverage+0 );
1785 0 : const sal_uInt32 nGlyph1 = GetUShort( pCoverage+2 );
1786 0 : const sal_uInt16 nCovIdx = GetUShort( pCoverage+4 );
1787 0 : pCoverage += 6;
1788 0 : for( sal_uInt32 j = nGlyph0; j <= nGlyph1; ++j )
1789 0 : aSubstVector.push_back( GlyphSubst( static_cast<sal_uInt16>(j + nCovIdx), 0 ) );
1790 : }
1791 : }
1792 0 : break;
1793 : }
1794 :
1795 0 : SubstVector::iterator it( aSubstVector.begin() );
1796 :
1797 0 : switch( nFmtSubstitution )
1798 : {
1799 : case 1: // Single Substitution Format 1
1800 : {
1801 0 : const sal_uInt16 nDeltaGlyphId = GetUShort( pSubLookup );
1802 0 : for(; it != aSubstVector.end(); ++it )
1803 0 : (*it).second = (*it).first + nDeltaGlyphId;
1804 : }
1805 0 : break;
1806 :
1807 : case 2: // Single Substitution Format 2
1808 : {
1809 0 : const sal_uInt16 nCntGlyph = GetUShort( pSubLookup );
1810 0 : pSubLookup += 2;
1811 0 : for( int i = nCntGlyph; (it != aSubstVector.end()) && (--i>=0); ++it )
1812 : {
1813 0 : const sal_uInt16 nGlyphId = GetUShort( pSubLookup );
1814 0 : pSubLookup += 2;
1815 0 : (*it).second = nGlyphId;
1816 : }
1817 : }
1818 0 : break;
1819 : }
1820 :
1821 : DBG_ASSERT( (it == aSubstVector.end()), "lookup<->coverage table mismatch" );
1822 : // now apply the glyph substitutions that have been collected in this subtable
1823 0 : for( it = aSubstVector.begin(); it != aSubstVector.end(); ++it )
1824 0 : maGlyphSubstitution[ (*it).first ] = (*it).second;
1825 0 : }
1826 : }
1827 :
1828 9625 : return true;
1829 : }
1830 :
1831 29926 : const unsigned char* ServerFont::GetTable(const char* pName, sal_uLong* pLength)
1832 : {
1833 29926 : return mpFontInfo->GetTable( pName, pLength );
1834 : }
1835 :
1836 : #if ENABLE_GRAPHITE
1837 6073 : GraphiteFaceWrapper* ServerFont::GetGraphiteFace() const
1838 : {
1839 6073 : return mpFontInfo->GetGraphiteFace();
1840 1233 : }
1841 : #endif
1842 :
1843 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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