/OOO330_m20/vcl/source/glyphs/gcach_ftyp.cxx
C++ | 2557 lines | 1902 code | 387 blank | 268 comment | 439 complexity | afa160770e84614e0347aee319233ea2 MD5 | raw file
Large files files are truncated, but you can click here to view the full file
- /*************************************************************************
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * Copyright 2000, 2010 Oracle and/or its affiliates.
- *
- * OpenOffice.org - a multi-platform office productivity suite
- *
- * This file is part of OpenOffice.org.
- *
- * OpenOffice.org is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 3
- * only, as published by the Free Software Foundation.
- *
- * OpenOffice.org is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License version 3 for more details
- * (a copy is included in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU Lesser General Public License
- * version 3 along with OpenOffice.org. If not, see
- * <http://www.openoffice.org/license.html>
- * for a copy of the LGPLv3 License.
- *
- ************************************************************************/
- // MARKER(update_precomp.py): autogen include statement, do not remove
- #include "precompiled_vcl.hxx"
- #ifdef WNT
- #include <svsys.h>
- #undef CreateFont
- #endif
- #include "gcach_ftyp.hxx"
- #include "vcl/svapp.hxx"
- #include "vcl/outfont.hxx"
- #include "vcl/impfont.hxx"
- #include "tools/poly.hxx"
- #include "basegfx/matrix/b2dhommatrix.hxx"
- #include <basegfx/matrix/b2dhommatrixtools.hxx>
- #include "basegfx/polygon/b2dpolypolygon.hxx"
- #include "osl/file.hxx"
- #include "osl/thread.hxx"
- #include <ft2build.h>
- #include FT_FREETYPE_H
- #include FT_GLYPH_H
- #include FT_OUTLINE_H
- #include FT_TRUETYPE_TABLES_H
- #include FT_TRUETYPE_TAGS_H
- #include FT_TRUETYPE_IDS_H
- #ifndef FT_RENDER_MODE_MONO // happens in the MACOSX build
- #define FT_RENDER_MODE_MONO ft_render_mode_mono
- #endif
- #include "rtl/instance.hxx"
- #ifndef FREETYPE_PATCH
- // VERSION_MINOR in freetype.h is too coarse
- // if patch-level is not available we need to fine-tune the version ourselves
- #define FTVERSION 2005
- #else
- #define FTVERSION (1000*FREETYPE_MAJOR + 100*FREETYPE_MINOR + FREETYPE_PATCH)
- #endif
- #if FTVERSION >= 2200
- typedef const FT_Vector* FT_Vector_CPtr;
- #else // FTVERSION < 2200
- typedef FT_Vector* FT_Vector_CPtr;
- #endif
- #include <vector>
- // TODO: move file mapping stuff to OSL
- #if defined(UNX)
- #if !defined(HPUX)
- // PORTERS: dlfcn is used for getting symbols from FT versions newer than baseline
- #include <dlfcn.h>
- #endif
- #include <unistd.h>
- #include <fcntl.h>
- #include <sys/stat.h>
- #include <sys/mman.h>
- #include "vcl/fontmanager.hxx"
- #elif defined(WNT)
- #include <io.h>
- #define strncasecmp strnicmp
- #endif
- typedef const unsigned char* CPU8;
- inline sal_uInt16 NEXT_U16( CPU8& p ) { p+=2; return (p[-2]<<8)|p[-1]; }
- inline sal_Int16 NEXT_S16( CPU8& p ) { return (sal_Int16)NEXT_U16(p); }
- inline sal_uInt32 NEXT_U32( CPU8& p ) { p+=4; return (p[-4]<<24)|(p[-3]<<16)|(p[-2]<<8)|p[-1]; }
- //inline sal_Int32 NEXT_S32( U8*& p ) { return (sal_Int32)NEXT_U32(p); }
- // -----------------------------------------------------------------------
- // the gamma table makes artificial bold look better for CJK glyphs
- static unsigned char aGammaTable[257];
- static void InitGammaTable()
- {
- static const int M_MAX = 255;
- static const int M_X = 128;
- static const int M_Y = 208;
- int x, a;
- for( x = 0; x < 256; x++)
- {
- if ( x <= M_X )
- a = ( x * M_Y + M_X / 2) / M_X;
- else
- a = M_Y + ( ( x - M_X ) * ( M_MAX - M_Y ) +
- ( M_MAX - M_X ) / 2 ) / ( M_MAX - M_X );
- aGammaTable[x] = (unsigned char)a;
- }
- }
- // -----------------------------------------------------------------------
- static FT_Library aLibFT = 0;
- // #110607# enable linking with old FT versions
- static int nFTVERSION = 0;
- static FT_Error (*pFTNewSize)(FT_Face,FT_Size*);
- static FT_Error (*pFTActivateSize)(FT_Size);
- static FT_Error (*pFTDoneSize)(FT_Size);
- FT_Error (*pFTEmbolden)(FT_GlyphSlot);
- FT_Error (*pFTOblique)(FT_GlyphSlot);
- static bool bEnableSizeFT = false;
- struct EqStr{ bool operator()(const char* a, const char* b) const { return !strcmp(a,b); } };
- typedef ::std::hash_map<const char*,FtFontFile*,::std::hash<const char*>, EqStr> FontFileList;
- namespace { struct vclFontFileList : public rtl::Static< FontFileList, vclFontFileList > {}; }
- // -----------------------------------------------------------------------
- // TODO: remove when the priorities are selected by UI
- // if (AH==0) => disable autohinting
- // if (AA==0) => disable antialiasing
- // if (EB==0) => disable embedded bitmaps
- // if (AA prio <= AH prio) => antialias + autohint
- // if (AH<AA) => do not autohint when antialiasing
- // if (EB<AH) => do not autohint for monochrome
- static int nDefaultPrioEmbedded = 2;
- static int nDefaultPrioAutoHint = 1;
- static int nDefaultPrioAntiAlias = 1;
- // =======================================================================
- // FreetypeManager
- // =======================================================================
- FtFontFile::FtFontFile( const ::rtl::OString& rNativeFileName )
- : maNativeFileName( rNativeFileName ),
- mpFileMap( NULL ),
- mnFileSize( 0 ),
- mnRefCount( 0 ),
- mnLangBoost( 0 )
- {
- // boost font preference if UI language is mentioned in filename
- int nPos = maNativeFileName.lastIndexOf( '_' );
- if( nPos == -1 || maNativeFileName[nPos+1] == '.' )
- mnLangBoost += 0x1000; // no langinfo => good
- else
- {
- static const char* pLangBoost = NULL;
- static bool bOnce = true;
- if( bOnce )
- {
- bOnce = false;
- LanguageType aLang = Application::GetSettings().GetUILanguage();
- switch( aLang )
- {
- case LANGUAGE_JAPANESE:
- pLangBoost = "jan";
- break;
- case LANGUAGE_CHINESE:
- case LANGUAGE_CHINESE_SIMPLIFIED:
- case LANGUAGE_CHINESE_SINGAPORE:
- pLangBoost = "zhs";
- break;
- case LANGUAGE_CHINESE_TRADITIONAL:
- case LANGUAGE_CHINESE_HONGKONG:
- case LANGUAGE_CHINESE_MACAU:
- pLangBoost = "zht";
- break;
- case LANGUAGE_KOREAN:
- case LANGUAGE_KOREAN_JOHAB:
- pLangBoost = "kor";
- break;
- }
- }
- if( pLangBoost && !strncasecmp( pLangBoost, &maNativeFileName.getStr()[nPos+1], 3 ) )
- mnLangBoost += 0x2000; // matching langinfo => better
- }
- }
- // -----------------------------------------------------------------------
- FtFontFile* FtFontFile::FindFontFile( const ::rtl::OString& rNativeFileName )
- {
- // font file already known? (e.g. for ttc, synthetic, aliased fonts)
- const char* pFileName = rNativeFileName.getStr();
- FontFileList &rFontFileList = vclFontFileList::get();
- FontFileList::const_iterator it = rFontFileList.find( pFileName );
- if( it != rFontFileList.end() )
- return (*it).second;
- // no => create new one
- FtFontFile* pFontFile = new FtFontFile( rNativeFileName );
- pFileName = pFontFile->maNativeFileName.getStr();
- rFontFileList[ pFileName ] = pFontFile;
- return pFontFile;
- }
- // -----------------------------------------------------------------------
- bool FtFontFile::Map()
- {
- if( mnRefCount++ <= 0 )
- {
- const char* pFileName = maNativeFileName.getStr();
- #if defined(UNX)
- int nFile = open( pFileName, O_RDONLY );
- if( nFile < 0 )
- return false;
- struct stat aStat;
- fstat( nFile, &aStat );
- mnFileSize = aStat.st_size;
- mpFileMap = (const unsigned char*)
- mmap( NULL, mnFileSize, PROT_READ, MAP_SHARED, nFile, 0 );
- if( mpFileMap == MAP_FAILED )
- mpFileMap = NULL;
- close( nFile );
- #elif defined(WNT)
- void* pFileDesc = ::CreateFile( pFileName, GENERIC_READ, FILE_SHARE_READ,
- NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0 );
- if( pFileDesc == INVALID_HANDLE_VALUE)
- return false;
- mnFileSize = ::GetFileSize( pFileDesc, NULL );
- HANDLE aHandle = ::CreateFileMapping( pFileDesc, NULL, PAGE_READONLY, 0, mnFileSize, "TTF" );
- mpFileMap = (const unsigned char*)::MapViewOfFile( aHandle, FILE_MAP_READ, 0, 0, mnFileSize );
- ::CloseHandle( pFileDesc );
- #else
- FILE* pFile = fopen( pFileName, "rb" );
- if( !pFile )
- return false;
- struct stat aStat;
- stat( pFileName, &aStat );
- mnFileSize = aStat.st_size;
- mpFileMap = new unsigned char[ mnFileSize ];
- if( mnFileSize != fread( mpFileMap, 1, mnFileSize, pFile ) )
- {
- delete[] mpFileMap;
- mpFileMap = NULL;
- }
- fclose( pFile );
- #endif
- }
- return (mpFileMap != NULL);
- }
- // -----------------------------------------------------------------------
- void FtFontFile::Unmap()
- {
- if( (--mnRefCount > 0) || (mpFileMap == NULL) )
- return;
- #if defined(UNX)
- munmap( (char*)mpFileMap, mnFileSize );
- #elif defined(WNT)
- UnmapViewOfFile( (LPCVOID)mpFileMap );
- #else
- delete[] mpFileMap;
- #endif
- mpFileMap = NULL;
- }
- // =======================================================================
- FtFontInfo::FtFontInfo( const ImplDevFontAttributes& rDevFontAttributes,
- const ::rtl::OString& rNativeFileName, int nFaceNum, sal_IntPtr nFontId, int nSynthetic,
- const ExtraKernInfo* pExtraKernInfo )
- :
- maFaceFT( NULL ),
- mpFontFile( FtFontFile::FindFontFile( rNativeFileName ) ),
- mnFaceNum( nFaceNum ),
- mnRefCount( 0 ),
- mnSynthetic( nSynthetic ),
- mnFontId( nFontId ),
- maDevFontAttributes( rDevFontAttributes ),
- mpChar2Glyph( NULL ),
- mpGlyph2Char( NULL ),
- mpExtraKernInfo( pExtraKernInfo )
- {
- // prefer font with low ID
- maDevFontAttributes.mnQuality += 10000 - nFontId;
- // prefer font with matching file names
- maDevFontAttributes.mnQuality += mpFontFile->GetLangBoost();
- // prefer font with more external info
- if( pExtraKernInfo )
- maDevFontAttributes.mnQuality += 100;
- }
- // -----------------------------------------------------------------------
- FtFontInfo::~FtFontInfo()
- {
- delete mpExtraKernInfo;
- delete mpChar2Glyph;
- delete mpGlyph2Char;
- }
- void FtFontInfo::InitHashes() const
- {
- // TODO: avoid pointers when empty stl::hash_* objects become cheap
- mpChar2Glyph = new Int2IntMap();
- mpGlyph2Char = new Int2IntMap();
- }
- // -----------------------------------------------------------------------
- FT_FaceRec_* FtFontInfo::GetFaceFT()
- {
- // get faceFT once/multiple depending on availability of SizeFT APIs
- if( (mnRefCount++ <= 0) || !bEnableSizeFT )
- {
- if( !mpFontFile->Map() )
- return NULL;
- FT_Error rc = FT_New_Memory_Face( aLibFT,
- (FT_Byte*)mpFontFile->GetBuffer(),
- mpFontFile->GetFileSize(), mnFaceNum, &maFaceFT );
- if( (rc != FT_Err_Ok) || (maFaceFT->num_glyphs <= 0) )
- maFaceFT = NULL;
- }
- return maFaceFT;
- }
- // -----------------------------------------------------------------------
- void FtFontInfo::ReleaseFaceFT( FT_FaceRec_* pFaceFT )
- {
- // release last/each depending on SizeFT availability
- if( (--mnRefCount <= 0) || !bEnableSizeFT )
- {
- FT_Done_Face( pFaceFT );
- maFaceFT = NULL;
- mpFontFile->Unmap();
- }
- }
- // -----------------------------------------------------------------------
- bool FtFontInfo::HasExtraKerning() const
- {
- if( !mpExtraKernInfo )
- return false;
- // TODO: how to enable the line below without getting #i29881# back?
- // on the other hand being to optimistic doesn't cause problems
- // return mpExtraKernInfo->HasKernPairs();
- return true;
- }
- // -----------------------------------------------------------------------
- int FtFontInfo::GetExtraKernPairs( ImplKernPairData** ppKernPairs ) const
- {
- if( !mpExtraKernInfo )
- return 0;
- return mpExtraKernInfo->GetUnscaledKernPairs( ppKernPairs );
- }
- // -----------------------------------------------------------------------
- int FtFontInfo::GetExtraGlyphKernValue( int nLeftGlyph, int nRightGlyph ) const
- {
- if( !mpExtraKernInfo )
- return 0;
- if( !mpGlyph2Char )
- return 0;
- sal_Unicode cLeftChar = (*mpGlyph2Char)[ nLeftGlyph ];
- sal_Unicode cRightChar = (*mpGlyph2Char)[ nRightGlyph ];
- return mpExtraKernInfo->GetUnscaledKernValue( cLeftChar, cRightChar );
- }
- // -----------------------------------------------------------------------
- static unsigned GetUInt( const unsigned char* p ) { return((p[0]<<24)+(p[1]<<16)+(p[2]<<8)+p[3]);}
- static unsigned GetUShort( const unsigned char* p ){ return((p[0]<<8)+p[1]);}
- //static signed GetSShort( const unsigned char* p ){ return((short)((p[0]<<8)+p[1]));}
- // -----------------------------------------------------------------------
- const unsigned char* FtFontInfo::GetTable( const char* pTag, ULONG* pLength ) const
- {
- const unsigned char* pBuffer = mpFontFile->GetBuffer();
- int nFileSize = mpFontFile->GetFileSize();
- if( !pBuffer || nFileSize<1024 )
- return NULL;
- // we currently only handle TTF and TTC headers
- unsigned nFormat = GetUInt( pBuffer );
- const unsigned char* p = pBuffer + 12;
- if( nFormat == 0x74746366 ) // TTC_MAGIC
- p += GetUInt( p + 4 * mnFaceNum );
- else if( (nFormat!=0x00010000) && (nFormat!=0x74727565) ) // TTF_MAGIC and Apple TTF Magic
- return NULL;
- // walk table directory until match
- int nTables = GetUShort( p - 8 );
- if( nTables >= 64 ) // something fishy?
- return NULL;
- for( int i = 0; i < nTables; ++i, p+=16 )
- {
- if( p[0]==pTag[0] && p[1]==pTag[1] && p[2]==pTag[2] && p[3]==pTag[3] )
- {
- ULONG nLength = GetUInt( p + 12 );
- if( pLength != NULL )
- *pLength = nLength;
- const unsigned char* pTable = pBuffer + GetUInt( p + 8 );
- if( (pTable + nLength) <= (mpFontFile->GetBuffer() + nFileSize) )
- return pTable;
- }
- }
- return NULL;
- }
- // -----------------------------------------------------------------------
- void FtFontInfo::AnnounceFont( ImplDevFontList* pFontList )
- {
- ImplFTSFontData* pFD = new ImplFTSFontData( this, maDevFontAttributes );
- pFontList->Add( pFD );
- }
- // =======================================================================
- FreetypeManager::FreetypeManager()
- : mnMaxFontId( 0 ), mnNextFontId( 0x1000 )
- {
- /*FT_Error rcFT =*/ FT_Init_FreeType( &aLibFT );
- #ifdef RTLD_DEFAULT // true if a good dlfcn.h header was included
- // Get version of freetype library to enable workarounds.
- // Freetype <= 2.0.9 does not have FT_Library_Version().
- // Using dl_sym() instead of osl_getSymbol() because latter
- // isn't designed to work with oslModule=NULL
- void (*pFTLibraryVersion)(FT_Library library,
- FT_Int *amajor, FT_Int *aminor, FT_Int *apatch);
- pFTLibraryVersion = (void (*)(FT_Library library,
- FT_Int *amajor, FT_Int *aminor, FT_Int *apatch))(sal_IntPtr)dlsym( RTLD_DEFAULT, "FT_Library_Version" );
- pFTNewSize = (FT_Error(*)(FT_Face,FT_Size*))(sal_IntPtr)dlsym( RTLD_DEFAULT, "FT_New_Size" );
- pFTActivateSize = (FT_Error(*)(FT_Size))(sal_IntPtr)dlsym( RTLD_DEFAULT, "FT_Activate_Size" );
- pFTDoneSize = (FT_Error(*)(FT_Size))(sal_IntPtr)dlsym( RTLD_DEFAULT, "FT_Done_Size" );
- pFTEmbolden = (FT_Error(*)(FT_GlyphSlot))(sal_IntPtr)dlsym( RTLD_DEFAULT, "FT_GlyphSlot_Embolden" );
- pFTOblique = (FT_Error(*)(FT_GlyphSlot))(sal_IntPtr)dlsym( RTLD_DEFAULT, "FT_GlyphSlot_Oblique" );
- bEnableSizeFT = (pFTNewSize!=NULL) && (pFTActivateSize!=NULL) && (pFTDoneSize!=NULL);
- FT_Int nMajor = 0, nMinor = 0, nPatch = 0;
- if( pFTLibraryVersion )
- pFTLibraryVersion( aLibFT, &nMajor, &nMinor, &nPatch );
- nFTVERSION = nMajor * 1000 + nMinor * 100 + nPatch;
- // disable embedded bitmaps for Freetype-2.1.3 unless explicitly
- // requested by env var below because it crashes StarOffice on RH9
- // reason: double free in freetype's embedded bitmap handling
- if( nFTVERSION == 2103 )
- nDefaultPrioEmbedded = 0;
- // disable artificial emboldening with the Freetype API for older versions
- if( nFTVERSION < 2110 )
- pFTEmbolden = NULL;
- #else // RTLD_DEFAULT
- // assume systems where dlsym is not possible use supplied library
- nFTVERSION = FTVERSION;
- #endif
- // TODO: remove when the priorities are selected by UI
- char* pEnv;
- pEnv = ::getenv( "SAL_EMBEDDED_BITMAP_PRIORITY" );
- if( pEnv )
- nDefaultPrioEmbedded = pEnv[0] - '0';
- pEnv = ::getenv( "SAL_ANTIALIASED_TEXT_PRIORITY" );
- if( pEnv )
- nDefaultPrioAntiAlias = pEnv[0] - '0';
- pEnv = ::getenv( "SAL_AUTOHINTING_PRIORITY" );
- if( pEnv )
- nDefaultPrioAutoHint = pEnv[0] - '0';
- InitGammaTable();
- }
- // -----------------------------------------------------------------------
- void* FreetypeServerFont::GetFtFace() const
- {
- if( maSizeFT )
- pFTActivateSize( maSizeFT );
- return maFaceFT;
- }
- // -----------------------------------------------------------------------
- FreetypeManager::~FreetypeManager()
- {
- // This crashes on Solaris 10
- // TODO: check which versions have this problem
- //
- // FT_Error rcFT = FT_Done_FreeType( aLibFT );
- }
- // -----------------------------------------------------------------------
- void FreetypeManager::AddFontFile( const rtl::OString& rNormalizedName,
- int nFaceNum, sal_IntPtr nFontId, const ImplDevFontAttributes& rDevFontAttr,
- const ExtraKernInfo* pExtraKernInfo )
- {
- if( !rNormalizedName.getLength() )
- return;
- if( maFontList.find( nFontId ) != maFontList.end() )
- return;
- FtFontInfo* pFontInfo = new FtFontInfo( rDevFontAttr,
- rNormalizedName, nFaceNum, nFontId, 0, pExtraKernInfo );
- maFontList[ nFontId ] = pFontInfo;
- if( mnMaxFontId < nFontId )
- mnMaxFontId = nFontId;
- }
- // -----------------------------------------------------------------------
- long FreetypeManager::AddFontDir( const String& rUrlName )
- {
- osl::Directory aDir( rUrlName );
- osl::FileBase::RC rcOSL = aDir.open();
- if( rcOSL != osl::FileBase::E_None )
- return 0;
- long nCount = 0;
- osl::DirectoryItem aDirItem;
- rtl_TextEncoding theEncoding = osl_getThreadTextEncoding();
- while( (rcOSL = aDir.getNextItem( aDirItem, 20 )) == osl::FileBase::E_None )
- {
- osl::FileStatus aFileStatus( FileStatusMask_FileURL );
- rcOSL = aDirItem.getFileStatus( aFileStatus );
- ::rtl::OUString aUSytemPath;
- OSL_VERIFY( osl::FileBase::E_None
- == osl::FileBase::getSystemPathFromFileURL( aFileStatus.getFileURL(), aUSytemPath ));
- ::rtl::OString aCFileName = rtl::OUStringToOString( aUSytemPath, theEncoding );
- const char* pszFontFileName = aCFileName.getStr();
- FT_FaceRec_* aFaceFT = NULL;
- for( int nFaceNum = 0, nMaxFaces = 1; nFaceNum < nMaxFaces; ++nFaceNum )
- {
- FT_Error rcFT = FT_New_Face( aLibFT, pszFontFileName, nFaceNum, &aFaceFT );
- if( (rcFT != FT_Err_Ok) || (aFaceFT == NULL) )
- break;
- if( !FT_IS_SCALABLE( aFaceFT ) ) // ignore non-scalabale fonts
- continue;
- nMaxFaces = aFaceFT->num_faces;
- ImplDevFontAttributes aDFA;
- // TODO: prefer unicode names if available
- // TODO: prefer locale specific names if available?
- if ( aFaceFT->family_name )
- aDFA.maName = String::CreateFromAscii( aFaceFT->family_name );
- if ( aFaceFT->style_name )
- aDFA.maStyleName = String::CreateFromAscii( aFaceFT->style_name );
- aDFA.mbSymbolFlag = false;
- for( int i = aFaceFT->num_charmaps; --i >= 0; )
- {
- const FT_CharMap aCM = aFaceFT->charmaps[i];
- #if (FTVERSION < 2000)
- if( aCM->encoding == FT_ENCODING_NONE )
- #else
- if( (aCM->platform_id == TT_PLATFORM_MICROSOFT)
- && (aCM->encoding_id == TT_MS_ID_SYMBOL_CS) )
- #endif
- aDFA.mbSymbolFlag = true;
- }
- // TODO: extract better font characterization data from font
- aDFA.meFamily = FAMILY_DONTKNOW;
- aDFA.mePitch = FT_IS_FIXED_WIDTH( aFaceFT ) ? PITCH_FIXED : PITCH_VARIABLE;
- aDFA.meWidthType = WIDTH_DONTKNOW;
- aDFA.meWeight = FT_STYLE_FLAG_BOLD & aFaceFT->style_flags ? WEIGHT_BOLD : WEIGHT_NORMAL;
- aDFA.meItalic = FT_STYLE_FLAG_ITALIC & aFaceFT->style_flags ? ITALIC_NORMAL : ITALIC_NONE;
- aDFA.mnQuality = 0;
- aDFA.mbOrientation= true;
- aDFA.mbDevice = true;
- aDFA.mbSubsettable= false;
- aDFA.mbEmbeddable = false;
- FT_Done_Face( aFaceFT );
- AddFontFile( aCFileName, nFaceNum, ++mnNextFontId, aDFA, NULL );
- ++nCount;
- }
- }
- aDir.close();
- return nCount;
- }
- // -----------------------------------------------------------------------
- void FreetypeManager::AnnounceFonts( ImplDevFontList* pToAdd ) const
- {
- for( FontList::const_iterator it = maFontList.begin(); it != maFontList.end(); ++it )
- {
- FtFontInfo* pFtFontInfo = it->second;
- pFtFontInfo->AnnounceFont( pToAdd );
- }
- }
- // -----------------------------------------------------------------------
- void FreetypeManager::ClearFontList( )
- {
- for( FontList::iterator it = maFontList.begin(); it != maFontList.end(); ++it )
- {
- FtFontInfo* pFtFontInfo = it->second;
- delete pFtFontInfo;
- }
- maFontList.clear();
- }
- // -----------------------------------------------------------------------
- FreetypeServerFont* FreetypeManager::CreateFont( const ImplFontSelectData& rFSD )
- {
- FtFontInfo* pFontInfo = NULL;
- // find a FontInfo matching to the font id
- sal_IntPtr nFontId = reinterpret_cast<sal_IntPtr>( rFSD.mpFontData );
- FontList::iterator it = maFontList.find( nFontId );
- if( it != maFontList.end() )
- pFontInfo = it->second;
- if( !pFontInfo )
- return NULL;
- FreetypeServerFont* pNew = new FreetypeServerFont( rFSD, pFontInfo );
- return pNew;
- }
- // =======================================================================
- ImplFTSFontData::ImplFTSFontData( FtFontInfo* pFI, const ImplDevFontAttributes& rDFA )
- : ImplFontData( rDFA, IFTSFONT_MAGIC ),
- mpFtFontInfo( pFI )
- {
- mbDevice = false;
- mbOrientation = true;
- }
- // -----------------------------------------------------------------------
- ImplFontEntry* ImplFTSFontData::CreateFontInstance( ImplFontSelectData& rFSD ) const
- {
- ImplServerFontEntry* pEntry = new ImplServerFontEntry( rFSD );
- return pEntry;
- }
- // =======================================================================
- // FreetypeServerFont
- // =======================================================================
- FreetypeServerFont::FreetypeServerFont( const ImplFontSelectData& rFSD, FtFontInfo* pFI )
- : ServerFont( rFSD ),
- mnPrioEmbedded(nDefaultPrioEmbedded),
- mnPrioAntiAlias(nDefaultPrioAntiAlias),
- mnPrioAutoHint(nDefaultPrioAutoHint),
- mpFontInfo( pFI ),
- maFaceFT( NULL ),
- maSizeFT( NULL ),
- mbFaceOk( false ),
- maRecodeConverter( NULL ),
- mpLayoutEngine( NULL )
- {
- maFaceFT = pFI->GetFaceFT();
- #ifdef HDU_DEBUG
- fprintf( stderr, "FTSF::FTSF(\"%s\", h=%d, w=%d, sy=%d) => %d\n",
- pFI->GetFontFileName()->getStr(), rFSD.mnHeight, rFSD.mnWidth, pFI->IsSymbolFont(), maFaceFT!=0 );
- #endif
- if( !maFaceFT )
- return;
- // set the pixel size of the font instance
- mnWidth = rFSD.mnWidth;
- if( !mnWidth )
- mnWidth = rFSD.mnHeight;
- mfStretch = (double)mnWidth / rFSD.mnHeight;
- // sanity check (e.g. #i66394#, #i66244#, #66537#)
- if( (mnWidth < 0) || (mfStretch > +64.0) || (mfStretch < -64.0) )
- return;
- // perf: use maSizeFT if available
- if( bEnableSizeFT )
- {
- pFTNewSize( maFaceFT, &maSizeFT );
- pFTActivateSize( maSizeFT );
- }
- FT_Error rc = FT_Set_Pixel_Sizes( maFaceFT, mnWidth, rFSD.mnHeight );
- if( rc != FT_Err_Ok )
- return;
- // prepare for font encodings other than unicode or symbol
- FT_Encoding eEncoding = FT_ENCODING_UNICODE;
- if( mpFontInfo->IsSymbolFont() )
- {
- #if (FTVERSION < 2000)
- eEncoding = FT_ENCODING_NONE;
- #else
- if( FT_IS_SFNT( maFaceFT ) )
- eEncoding = ft_encoding_symbol;
- else
- eEncoding = FT_ENCODING_ADOBE_CUSTOM; // freetype wants this for PS symbol fonts
- #endif
- }
- rc = FT_Select_Charmap( maFaceFT, eEncoding );
- // no standard encoding applies => we need an encoding converter
- if( rc != FT_Err_Ok )
- {
- rtl_TextEncoding eRecodeFrom = RTL_TEXTENCODING_UNICODE;
- for( int i = maFaceFT->num_charmaps; --i >= 0; )
- {
- const FT_CharMap aCM = maFaceFT->charmaps[i];
- if( aCM->platform_id == TT_PLATFORM_MICROSOFT )
- {
- switch( aCM->encoding_id )
- {
- case TT_MS_ID_SJIS:
- eEncoding = FT_ENCODING_SJIS;
- eRecodeFrom = RTL_TEXTENCODING_SHIFT_JIS;
- break;
- case TT_MS_ID_GB2312:
- eEncoding = FT_ENCODING_GB2312;
- eRecodeFrom = RTL_TEXTENCODING_GB_2312;
- break;
- case TT_MS_ID_BIG_5:
- eEncoding = FT_ENCODING_BIG5;
- eRecodeFrom = RTL_TEXTENCODING_BIG5;
- break;
- case TT_MS_ID_WANSUNG:
- eEncoding = FT_ENCODING_WANSUNG;
- eRecodeFrom = RTL_TEXTENCODING_MS_949;
- break;
- case TT_MS_ID_JOHAB:
- eEncoding = FT_ENCODING_JOHAB;
- eRecodeFrom = RTL_TEXTENCODING_MS_1361;
- break;
- }
- }
- else if( aCM->platform_id == TT_PLATFORM_MACINTOSH )
- {
- switch( aCM->encoding_id )
- {
- case TT_MAC_ID_ROMAN:
- eEncoding = FT_ENCODING_APPLE_ROMAN;
- eRecodeFrom = RTL_TEXTENCODING_UNICODE; // TODO: use better match
- break;
- // TODO: add other encodings when Mac-only
- // non-unicode fonts show up
- }
- }
- else if( aCM->platform_id == TT_PLATFORM_ADOBE )
- {
- switch( aCM->encoding_id )
- {
- #ifdef TT_ADOBE_ID_LATIN1
- case TT_ADOBE_ID_LATIN1: // better unicode than nothing
- eEncoding = FT_ENCODING_ADOBE_LATIN_1;
- eRecodeFrom = RTL_TEXTENCODING_ISO_8859_1;
- break;
- #endif // TT_ADOBE_ID_LATIN1
- case TT_ADOBE_ID_STANDARD: // better unicode than nothing
- eEncoding = FT_ENCODING_ADOBE_STANDARD;
- eRecodeFrom = RTL_TEXTENCODING_UNICODE; // TODO: use better match
- break;
- }
- }
- }
- if( FT_Err_Ok != FT_Select_Charmap( maFaceFT, eEncoding ) )
- return;
- if( eRecodeFrom != RTL_TEXTENCODING_UNICODE )
- maRecodeConverter = rtl_createUnicodeToTextConverter( eRecodeFrom );
- }
- mbFaceOk = true;
- ApplyGSUB( rFSD );
- // TODO: query GASP table for load flags
- mnLoadFlags = FT_LOAD_DEFAULT;
- #if 1 // #i97326# cairo sometimes uses FT_Set_Transform() on our FT_FACE
- // we are not using FT_Set_Transform() yet, so just ignore it for now
- mnLoadFlags |= FT_LOAD_IGNORE_TRANSFORM;
- #endif
- mbArtItalic = (rFSD.meItalic != ITALIC_NONE && pFI->GetFontAttributes().GetSlant() == ITALIC_NONE);
- mbArtBold = (rFSD.meWeight > WEIGHT_MEDIUM && pFI->GetFontAttributes().GetWeight() <= WEIGHT_MEDIUM);
- mbUseGamma = false;
- if( mbArtBold )
- {
- //static const int TT_CODEPAGE_RANGE_874 = (1L << 16); // Thai
- //static const int TT_CODEPAGE_RANGE_932 = (1L << 17); // JIS/Japan
- //static const int TT_CODEPAGE_RANGE_936 = (1L << 18); // Chinese: Simplified
- //static const int TT_CODEPAGE_RANGE_949 = (1L << 19); // Korean Wansung
- //static const int TT_CODEPAGE_RANGE_950 = (1L << 20); // Chinese: Traditional
- //static const int TT_CODEPAGE_RANGE_1361 = (1L << 21); // Korean Johab
- static const int TT_CODEPAGE_RANGES1_CJKT = 0x3F0000; // all of the above
- const TT_OS2* pOs2 = (const TT_OS2*)FT_Get_Sfnt_Table( maFaceFT, ft_sfnt_os2 );
- if ((pOs2) && (pOs2->ulCodePageRange1 & TT_CODEPAGE_RANGES1_CJKT )
- && rFSD.mnHeight < 20)
- mbUseGamma = true;
- }
- if( ((mnCos != 0) && (mnSin != 0)) || (mnPrioEmbedded <= 0) )
- mnLoadFlags |= FT_LOAD_NO_BITMAP;
- }
- void FreetypeServerFont::SetFontOptions( const ImplFontOptions& rFontOptions)
- {
- FontAutoHint eHint = rFontOptions.GetUseAutoHint();
- if( eHint == AUTOHINT_DONTKNOW )
- eHint = mbUseGamma ? AUTOHINT_TRUE : AUTOHINT_FALSE;
- if( eHint == AUTOHINT_TRUE )
- mnLoadFlags |= FT_LOAD_FORCE_AUTOHINT;
- if( (mnSin != 0) && (mnCos != 0) ) // hinting for 0/90/180/270 degrees only
- mnLoadFlags |= FT_LOAD_NO_HINTING;
- mnLoadFlags |= FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH; //#88334#
- if( rFontOptions.DontUseAntiAlias() )
- mnPrioAntiAlias = 0;
- if( rFontOptions.DontUseEmbeddedBitmaps() )
- mnPrioEmbedded = 0;
- if( rFontOptions.DontUseHinting() )
- mnPrioAutoHint = 0;
- #if (FTVERSION >= 2005) || defined(TT_CONFIG_OPTION_BYTECODE_INTERPRETER)
- if( mnPrioAutoHint <= 0 )
- #endif
- mnLoadFlags |= FT_LOAD_NO_HINTING;
- #if defined(FT_LOAD_TARGET_LIGHT) && defined(FT_LOAD_TARGET_NORMAL)
- if( !(mnLoadFlags & FT_LOAD_NO_HINTING) && (nFTVERSION >= 2103))
- {
- mnLoadFlags |= FT_LOAD_TARGET_NORMAL;
- switch( rFontOptions.GetHintStyle() )
- {
- case HINT_NONE:
- mnLoadFlags |= FT_LOAD_NO_HINTING;
- break;
- case HINT_SLIGHT:
- mnLoadFlags |= FT_LOAD_TARGET_LIGHT;
- break;
- case HINT_MEDIUM:
- break;
- case HINT_FULL:
- default:
- break;
- }
- }
- #endif
- }
- // -----------------------------------------------------------------------
- bool FreetypeServerFont::TestFont() const
- {
- return mbFaceOk;
- }
- // -----------------------------------------------------------------------
- FreetypeServerFont::~FreetypeServerFont()
- {
- if( mpLayoutEngine )
- delete mpLayoutEngine;
- if( maRecodeConverter )
- rtl_destroyUnicodeToTextConverter( maRecodeConverter );
- if( maSizeFT )
- pFTDoneSize( maSizeFT );
- mpFontInfo->ReleaseFaceFT( maFaceFT );
- }
- // -----------------------------------------------------------------------
- int FreetypeServerFont::GetEmUnits() const
- {
- return maFaceFT->units_per_EM;
- }
- // -----------------------------------------------------------------------
- void FreetypeServerFont::FetchFontMetric( ImplFontMetricData& rTo, long& rFactor ) const
- {
- static_cast<ImplFontAttributes&>(rTo) = mpFontInfo->GetFontAttributes();
- rTo.mbScalableFont = true;
- rTo.mbDevice = true;
- rTo.mbKernableFont = (FT_HAS_KERNING( maFaceFT ) != 0) || mpFontInfo->HasExtraKerning();
- rTo.mnOrientation = GetFontSelData().mnOrientation;
- //Always consider [star]symbol as symbol fonts
- if (
- (rTo.GetFamilyName().EqualsAscii("OpenSymbol")) ||
- (rTo.GetFamilyName().EqualsAscii("StarSymbol"))
- )
- {
- rTo.mbSymbolFlag = true;
- }
- if( maSizeFT )
- pFTActivateSize( maSizeFT );
- rFactor = 0x100;
- rTo.mnWidth = mnWidth;
- const FT_Size_Metrics& rMetrics = maFaceFT->size->metrics;
- rTo.mnAscent = (+rMetrics.ascender + 32) >> 6;
- #if (FTVERSION < 2000)
- rTo.mnDescent = (+rMetrics.descender + 32) >> 6;
- #else
- rTo.mnDescent = (-rMetrics.descender + 32) >> 6;
- #endif
- rTo.mnIntLeading = ((rMetrics.height + 32) >> 6) - (rTo.mnAscent + rTo.mnDescent);
- rTo.mnSlant = 0;
- const TT_OS2* pOS2 = (const TT_OS2*)FT_Get_Sfnt_Table( maFaceFT, ft_sfnt_os2 );
- const TT_HoriHeader* pHHEA = (const TT_HoriHeader*)FT_Get_Sfnt_Table( maFaceFT, ft_sfnt_hhea );
- if( pOS2 && (pOS2->version != 0xFFFF) )
- {
- // map the panose info from the OS2 table to their VCL counterparts
- switch( pOS2->panose[0] )
- {
- case 1: rTo.meFamily = FAMILY_ROMAN; break;
- case 2: rTo.meFamily = FAMILY_SWISS; break;
- case 3: rTo.meFamily = FAMILY_MODERN; break;
- case 4: rTo.meFamily = FAMILY_SCRIPT; break;
- case 5: rTo.meFamily = FAMILY_DECORATIVE; break;
- // TODO: is it reasonable to override the attribute with DONTKNOW?
- case 0: // fall through
- default: rTo.meFamilyType = FAMILY_DONTKNOW; break;
- }
- switch( pOS2->panose[3] )
- {
- case 2: // fall through
- case 3: // fall through
- case 4: // fall through
- case 5: // fall through
- case 6: // fall through
- case 7: // fall through
- case 8: rTo.mePitch = PITCH_VARIABLE; break;
- case 9: rTo.mePitch = PITCH_FIXED; break;
- // TODO: is it reasonable to override the attribute with DONTKNOW?
- case 0: // fall through
- case 1: // fall through
- default: rTo.mePitch = PITCH_DONTKNOW; break;
- }
- // #108862# sanity check, some fonts treat descent as signed !!!
- int nDescent = pOS2->usWinDescent;
- if( nDescent > 5*maFaceFT->units_per_EM )
- nDescent = (short)pOS2->usWinDescent; // interpret it as signed!
- const double fScale = (double)GetFontSelData().mnHeight / maFaceFT->units_per_EM;
- if( pOS2->usWinAscent || pOS2->usWinDescent ) // #i30551#
- {
- rTo.mnAscent = (long)( +pOS2->usWinAscent * fScale + 0.5 );
- rTo.mnDescent = (long)( +nDescent * fScale + 0.5 );
- rTo.mnIntLeading = (long)( (+pOS2->usWinAscent + pOS2->usWinDescent - maFaceFT->units_per_EM) * fScale + 0.5 );
- }
- rTo.mnExtLeading = 0;
- if( (pHHEA != NULL) && (pOS2->usWinAscent || pOS2->usWinDescent) )
- {
- int nExtLeading = pHHEA->Line_Gap;
- nExtLeading -= (pOS2->usWinAscent + pOS2->usWinDescent);
- nExtLeading += (pHHEA->Ascender - pHHEA->Descender);
- if( nExtLeading > 0 )
- rTo.mnExtLeading = (long)(nExtLeading * fScale + 0.5);
- }
- // Check for CJK capabilities of the current font
- // #107888# workaround for Asian...
- // TODO: remove when ExtLeading fully implemented
- BOOL bCJKCapable = ((pOS2->ulUnicodeRange2 & 0x2DF00000) != 0);
- if ( bCJKCapable && (pOS2->usWinAscent || pOS2->usWinDescent) )
- {
- rTo.mnIntLeading += rTo.mnExtLeading;
- // #109280# The line height for Asian fonts is too small.
- // Therefore we add half of the external leading to the
- // ascent, the other half is added to the descent.
- const long nHalfTmpExtLeading = rTo.mnExtLeading / 2;
- const long nOtherHalfTmpExtLeading = rTo.mnExtLeading -
- nHalfTmpExtLeading;
- // #110641# external leading for Asian fonts.
- // The factor 0.3 has been verified during experiments.
- const long nCJKExtLeading = (long)(0.30 * (rTo.mnAscent + rTo.mnDescent));
- if ( nCJKExtLeading > rTo.mnExtLeading )
- rTo.mnExtLeading = nCJKExtLeading - rTo.mnExtLeading;
- else
- rTo.mnExtLeading = 0;
- rTo.mnAscent += nHalfTmpExtLeading;
- rTo.mnDescent += nOtherHalfTmpExtLeading;
- }
- }
- // initialize kashida width
- // TODO: what if there are different versions of this glyph available
- rTo.mnMinKashida = rTo.mnAscent / 4; // a reasonable default
- const int nKashidaGlyphId = GetRawGlyphIndex( 0x0640 );
- if( nKashidaGlyphId )
- {
- GlyphData aGlyphData;
- InitGlyphData( nKashidaGlyphId, aGlyphData );
- rTo.mnMinKashida = aGlyphData.GetMetric().GetCharWidth();
- }
- }
- // -----------------------------------------------------------------------
- static inline void SplitGlyphFlags( const FreetypeServerFont& rFont, int& nGlyphIndex, int& nGlyphFlags )
- {
- nGlyphFlags = nGlyphIndex & GF_FLAGMASK;
- nGlyphIndex &= GF_IDXMASK;
- if( nGlyphIndex & GF_ISCHAR )
- nGlyphIndex = rFont.GetRawGlyphIndex( nGlyphIndex );
- }
- // -----------------------------------------------------------------------
- int FreetypeServerFont::ApplyGlyphTransform( int nGlyphFlags,
- FT_Glyph pGlyphFT, bool bForBitmapProcessing ) const
- {
- int nAngle = GetFontSelData().mnOrientation;
- // shortcut most common case
- if( !nAngle && !nGlyphFlags )
- return nAngle;
- const FT_Size_Metrics& rMetrics = maFaceFT->size->metrics;
- FT_Vector aVector;
- FT_Matrix aMatrix;
- bool bStretched = false;
- switch( nGlyphFlags & GF_ROTMASK )
- {
- default: // straight
- aVector.x = 0;
- aVector.y = 0;
- aMatrix.xx = +mnCos;
- aMatrix.yy = +mnCos;
- aMatrix.xy = -mnSin;
- aMatrix.yx = +mnSin;
- break;
- case GF_ROTL: // left
- nAngle += 900;
- bStretched = (mfStretch != 1.0);
- aVector.x = (FT_Pos)(+rMetrics.descender * mfStretch);
- aVector.y = -rMetrics.ascender;
- aMatrix.xx = (FT_Pos)(-mnSin / mfStretch);
- aMatrix.yy = (FT_Pos)(-mnSin * mfStretch);
- aMatrix.xy = (FT_Pos)(-mnCos * mfStretch);
- aMatrix.yx = (FT_Pos)(+mnCos / mfStretch);
- break;
- case GF_ROTR: // right
- nAngle -= 900;
- bStretched = (mfStretch != 1.0);
- aVector.x = -maFaceFT->glyph->metrics.horiAdvance;
- aVector.x += (FT_Pos)(rMetrics.descender * mnSin/65536.0);
- aVector.y = (FT_Pos)(-rMetrics.descender * mfStretch * mnCos/65536.0);
- aMatrix.xx = (FT_Pos)(+mnSin / mfStretch);
- aMatrix.yy = (FT_Pos)(+mnSin * mfStretch);
- aMatrix.xy = (FT_Pos)(+mnCos * mfStretch);
- aMatrix.yx = (FT_Pos)(-mnCos / mfStretch);
- break;
- }
- while( nAngle < 0 )
- nAngle += 3600;
- if( pGlyphFT->format != FT_GLYPH_FORMAT_BITMAP )
- {
- FT_Glyph_Transform( pGlyphFT, NULL, &aVector );
- // orthogonal transforms are better handled by bitmap operations
- if( bStretched || (bForBitmapProcessing && (nAngle % 900) != 0) )
- {
- // workaround for compatibility with older FT versions
- if( nFTVERSION < 2102 )
- {
- FT_Fixed t = aMatrix.xy;
- aMatrix.xy = aMatrix.yx;
- aMatrix.yx = t;
- }
- // apply non-orthogonal or stretch transformations
- FT_Glyph_Transform( pGlyphFT, &aMatrix, NULL );
- nAngle = 0;
- }
- }
- else
- {
- // FT<=2005 ignores transforms for bitmaps, so do it manually
- FT_BitmapGlyph pBmpGlyphFT = reinterpret_cast<FT_BitmapGlyph>(pGlyphFT);
- pBmpGlyphFT->left += (aVector.x + 32) >> 6;
- pBmpGlyphFT->top += (aVector.y + 32) >> 6;
- }
- return nAngle;
- }
- // -----------------------------------------------------------------------
- int FreetypeServerFont::GetRawGlyphIndex( sal_UCS4 aChar ) const
- {
- if( mpFontInfo->IsSymbolFont() )
- {
- if( !FT_IS_SFNT( maFaceFT ) )
- {
- if( (aChar & 0xFF00) == 0xF000 )
- aChar &= 0xFF; // PS font symbol mapping
- else if( aChar > 0xFF )
- return 0;
- }
- }
- // if needed recode from unicode to font encoding
- if( maRecodeConverter )
- {
- sal_Char aTempArray[8];
- sal_Size nTempSize;
- sal_uInt32 nCvtInfo;
- // assume that modern UCS4 fonts have unicode CMAPs
- // => no encoding remapping to unicode is needed
- if( aChar > 0xFFFF )
- return 0;
- sal_Unicode aUCS2Char = static_cast<sal_Unicode>(aChar);
- rtl_UnicodeToTextContext aContext = rtl_createUnicodeToTextContext( maRecodeConverter );
- int nChars = rtl_convertUnicodeToText( maRecodeConverter, aContext,
- &aUCS2Char, 1, aTempArray, sizeof(aTempArray),
- RTL_UNICODETOTEXT_FLAGS_UNDEFINED_QUESTIONMARK
- | RTL_UNICODETOTEXT_FLAGS_INVALID_QUESTIONMARK,
- &nCvtInfo, &nTempSize );
- rtl_destroyUnicodeToTextContext( maRecodeConverter, aContext );
- aChar = 0;
- for( int i = 0; i < nChars; ++i )
- aChar = aChar*256 + (aTempArray[i] & 0xFF);
- }
- // cache glyph indexes in font info to share between different sizes
- int nGlyphIndex = mpFontInfo->GetGlyphIndex( aChar );
- if( nGlyphIndex < 0 )
- {
- nGlyphIndex = FT_Get_Char_Index( maFaceFT, aChar );
- if( !nGlyphIndex)
- {
- // check if symbol aliasing helps
- if( (aChar <= 0x00FF) && mpFontInfo->IsSymbolFont() )
- nGlyphIndex = FT_Get_Char_Index( maFaceFT, aChar | 0xF000 );
- #if 0 // disabled for now because it introduced ae bad side-effect (#i88376#)
- // Finally try the postscript name table
- if (!nGlyphIndex)
- nGlyphIndex = psp::PrintFontManager::get().FreeTypeCharIndex( maFaceFT, aChar );
- #endif
- }
- mpFontInfo->CacheGlyphIndex( aChar, nGlyphIndex );
- }
- return nGlyphIndex;
- }
- // -----------------------------------------------------------------------
- int FreetypeServerFont::FixupGlyphIndex( int nGlyphIndex, sal_UCS4 aChar ) const
- {
- int nGlyphFlags = GF_NONE;
- // do glyph substitution if necessary
- // CJK vertical writing needs special treatment
- if( GetFontSelData().mbVertical )
- {
- // TODO: rethink when GSUB is used for non-vertical case
- GlyphSubstitution::const_iterator it = maGlyphSubstitution.find( nGlyphIndex );
- if( it == maGlyphSubstitution.end() )
- {
- int nTemp = GetVerticalChar( aChar );
- if( nTemp ) // is substitution possible
- nTemp = GetRawGlyphIndex( nTemp );
- if( nTemp ) // substitute manually if sensible
- nGlyphIndex = nTemp | (GF_GSUB | GF_ROTL);
- else
- nGlyphFlags |= GetVerticalFlags( aChar );
- }
- else
- {
- // for vertical GSUB also compensate for nOrientation=2700
- nGlyphIndex = (*it).second;
- nGlyphFlags |= GF_GSUB | GF_ROTL;
- }
- }
- #if 0
- // #95556# autohinting not yet optimized for non-western glyph styles
- if( !(mnLoadFlags & (FT_LOAD_NO_HINTING | FT_LOAD_FORCE_AUTOHINT) )
- && ( (aChar >= 0x0600 && aChar < 0x1E00) // south-east asian + arabic
- ||(aChar >= 0x2900 && aChar < 0xD800) // CJKV
- ||(aChar >= 0xF800) ) ) // presentation + symbols
- {
- nGlyphFlags |= GF_UNHINTED;
- }
- #endif
- if( nGlyphIndex != 0 )
- nGlyphIndex |= nGlyphFlags;
- return nGlyphIndex;
- }
- // -----------------------------------------------------------------------
- int FreetypeServerFont::GetGlyphIndex( sal_UCS4 aChar ) const
- {
- int nGlyphIndex = GetRawGlyphIndex( aChar );
- nGlyphIndex = FixupGlyphIndex( nGlyphIndex, aChar );
- return nGlyphIndex;
- }
- // -----------------------------------------------------------------------
- static int lcl_GetCharWidth( FT_FaceRec_* pFaceFT, double fStretch, int nGlyphFlags )
- {
- int nCharWidth = pFaceFT->glyph->metrics.horiAdvance;
- if( nGlyphFlags & GF_ROTMASK ) // for bVertical rotated glyphs
- {
- const FT_Size_Metrics& rMetrics = pFaceFT->size->metrics;
- #if (FTVERSION < 2000)
- nCharWidth = (int)((rMetrics.height - rMetrics.descender) * fStretch);
- #else
- nCharWidth = (int)((rMetrics.height + rMetrics.descender) * fStretch);
- #endif
- }
- return (nCharWidth + 32) >> 6;
- }
- // -----------------------------------------------------------------------
- void FreetypeServerFont::InitGlyphData( int nGlyphIndex, GlyphData& rGD ) const
- {
- if( maSizeFT )
- pFTActivateSize( maSizeFT );
- int nGlyphFlags;
- SplitGlyphFlags( *this, nGlyphIndex, nGlyphFlags );
- int nLoadFlags = mnLoadFlags;
- // if( mbArtItalic )
- // nLoadFlags |= FT_LOAD_NO_BITMAP;
- FT_Error rc = -1;
- #if (FTVERSION <= 2008)
- // #88364# freetype<=2005 prefers autohinting to embedded bitmaps
- // => first we have to try without hinting
- if( (nLoadFlags & (FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP)) == 0 )
- {
- rc = FT_Load_Glyph( maFaceFT, nGlyphIndex, nLoadFlags|FT_LOAD_NO_HINTING );
- if( (rc==FT_Err_Ok) && (maFaceFT->glyph->format!=FT_GLYPH_FORMAT_BITMAP) )
- rc = -1; // mark as "loading embedded bitmap" was unsuccessful
- nLoadFlags |= FT_LOAD_NO_BITMAP;
- }
- if( rc != FT_Err_Ok )
- #endif
- rc = FT_Load_Glyph( maFaceFT, nGlyphIndex, nLoadFlags );
- if( rc != FT_Err_Ok )
- {
- // we get here e.g. when a PS font lacks the default glyph
- rGD.SetCharWidth( 0 );
- rGD.SetDelta( 0, 0 );
- rGD.SetOffset( 0, 0 );
- rGD.SetSize( Size( 0, 0 ) );
- return;
- }
- const bool bOriginallyZeroWidth = (maFaceFT->glyph->metrics.horiAdvance == 0);
- if( mbArtBold && pFTEmbolden )
- (*pFTEmbolden)( maFaceFT->glyph );
- const int nCharWidth = bOriginallyZeroWidth ? 0 : lcl_GetCharWidth( maFaceFT, mfStretch, nGlyphFlags );
- rGD.SetCharWidth( nCharWidth );
- FT_Glyph pGlyphFT;
- rc = FT_Get_Glyph( maFaceFT->glyph, &pGlyphFT );
- ApplyGlyphTransform( nGlyphFlags, pGlyphFT, false );
- if( mbArtBold && pFTEmbolden && (nFTVERSION < 2200) ) // #i71094# workaround staircase bug
- pGlyphFT->advance.y = 0;
- rGD.SetDelta( (pGlyphFT->advance.x + 0x8000) >> 16, -((pGlyphFT->advance.y + 0x8000) >> 16) );
- FT_BBox aBbox;
- FT_Glyph_Get_CBox( pGlyphFT, FT_GLYPH_BBOX_PIXELS, &aBbox );
- if( aBbox.yMin > aBbox.yMax ) // circumvent freetype bug
- {
- int t=aBbox.yMin; aBbox.yMin=aBbox.yMax, aBbox.yMax=t;
- }
- rGD.SetOffset( aBbox.xMin, -aBbox.yMax );
- rGD.SetSize( Size( (aBbox.xMax-aBbox.xMin+1), (aBbox.yMax-aBbox.yMin) ) );
- FT_Done_Glyph( pGlyphFT );
- }
- // -----------------------------------------------------------------------
- bool FreetypeServerFont::GetAntialiasAdvice( void ) const
- {
- if( GetFontSelData().mbNonAntialiased || (mnPrioAntiAlias<=0) )
- return false;
- bool bAdviseAA = true;
- // TODO: also use GASP info
- return bAdviseAA;
- }
- // -----------------------------------------------------------------------
- bool FreetypeServerFont::GetGlyphBitmap1( int nGlyphIndex, RawBitmap& rRawBitmap ) const
- {
- if( maSizeFT )
- pFTActivateSize( maSizeFT );
- int nGlyphFlags;
- SplitGlyphFlags( *this, nGlyphIndex, nGlyphFlags );
- FT_Int nLoadFlags = mnLoadFlags;
- // #i70930# force mono-hinting for monochrome text
- if( nFTVERSION >= 2110 ) //#i71947# unless it looks worse
- {
- nLoadFlags &= ~0xF0000;
- nLoadFlags |= FT_LOAD_TARGET_MONO;
- }
- if( mbArtItalic )
- nLoadFlags |= FT_LOAD_NO_BITMAP;
- #if (FTVERSION >= 2002)
- // for 0/90/180/270 degree fonts enable hinting even if not advisable
- // non-hinted and non-antialiased bitmaps just look too ugly
- if( (mnCos==0 || mnSin==0) && (mnPrioAutoHint > 0) )
- nLoadFlags &= ~FT_LOAD_NO_HINTING;
- #endif
- if( mnPrioEmbedded <= mnPrioAutoHint )
- nLoadFlags |= FT_LOAD_NO_BITMAP;
- FT_Error rc = -1;
- #if (FTVERSION <= 2008)
- // #88364# freetype<=2005 prefers autohinting to embedded bitmaps
- // => first we have to try without hinting
- if( (nLoadFlags & (FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP)) == 0 )
- {
- rc = FT_Load_Glyph( maFaceFT, nGlyphIndex, nLoadFlags|FT_LOAD_NO_HINTING );
- if( (rc==FT_Err_Ok) && (maFaceFT->glyph->format != FT_GLYPH_FORMAT_BITMAP) )
- rc = -1; // mark as "loading embedded bitmap" was unsuccessful
- nLoadFlags |= FT_LOAD_NO_BITMAP;
- }
- if( rc != FT_Err_Ok )
- #endif
- rc = FT_Load_Glyph( maFaceFT, nGlyphIndex, nLoadFlags );
- if( rc != FT_Err_Ok )
- return false;
- if( mbArtBold && pFTEmbolden )
- (*pFTEmbolden)( maFaceFT->glyph );
- FT_Glyph pGlyphFT;
- rc = FT_Get_Glyph( maFaceFT->glyph, &pGlyphFT );
- if( rc != FT_Err_Ok )
- return false;
- int nAngle = ApplyGlyphTransform( nGlyphFlags, pGlyphFT, true );
- if( mbArtItalic )
- {
- FT_Matrix aMatrix;
- aMatrix.xx = aMatrix.yy = 0x10000L;
- if( nFTVERSION >= 2102 ) // Freetype 2.1.2 API swapped xy with yx
- aMatrix.xy = 0x6000L, aMatrix.yx = 0;
- else
- aMatrix.yx = 0x6000L, aMatrix.xy = 0;
- FT_Glyph_Transform( pGlyphFT, &aMatrix, NULL );
- }
- // Check for zero area bounding boxes as this crashes some versions of FT.
- // This also provides a handy short cut as much of the code following
- // becomes an expensive nop when a glyph covers no pixels.
- FT_BBox cbox;
- FT_Glyph_Get_CBox(pGlyphFT, ft_glyph_bbox_unscaled, &cbox);
-
- if( (cbox.xMax - cbox.xMin) == …
Large files files are truncated, but you can click here to view the full file