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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: gcach_ftyp.hxx,v $
*
* $Revision: 1.37 $
*
* last change: $Author: ihi $ $Date: 2006-12-21 12:04:04 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
#ifndef _SV_GCACHFTYP_HXX
#define _SV_GCACHFTYP_HXX
#include <glyphcache.hxx>
#include <rtl/textcvt.h>
#include <ft2build.h>
#include FT_FREETYPE_H
class FreetypeServerFont;
struct FT_GlyphRec_;
// -----------------------------------------------------------------------
// FtFontFile has the responsibility that a font file is only mapped once.
// (#86621#) the old directly ft-managed solution caused it to be mapped
// in up to nTTC*nSizes*nOrientation*nSynthetic times
class FtFontFile
{
public:
static FtFontFile* FindFontFile( const ::rtl::OString& rNativeFileName );
bool Map();
void Unmap();
const unsigned char* GetBuffer() const { return mpFileMap; }
int GetFileSize() const { return mnFileSize; }
const ::rtl::OString* GetFileName() const { return &maNativeFileName; }
int GetLangBoost() const { return mnLangBoost; }
private:
FtFontFile( const ::rtl::OString& rNativeFileName );
const ::rtl::OString maNativeFileName;
const unsigned char* mpFileMap;
int mnFileSize;
int mnRefCount;
int mnLangBoost;
};
// -----------------------------------------------------------------------
// FtFontInfo corresponds to an unscaled font face
class FtFontInfo
{
public:
FtFontInfo( const ImplDevFontAttributes&,
const ::rtl::OString& rNativeFileName,
int nFaceNum, sal_IntPtr nFontId, int nSynthetic,
const ExtraKernInfo* );
~FtFontInfo();
const unsigned char* GetTable( const char*, ULONG* pLength=0 ) const;
FT_FaceRec_* GetFaceFT();
void ReleaseFaceFT( FT_FaceRec_* );
const ::rtl::OString* GetFontFileName() const { return mpFontFile->GetFileName(); }
int GetFaceNum() const { return mnFaceNum; }
int GetSynthetic() const { return mnSynthetic; }
sal_IntPtr GetFontId() const { return mnFontId; }
bool DontUseAntiAlias() const
{ return maDevFontAttributes.UseAntiAlias() == ANTIALIAS_FALSE; }
bool DontUseEmbeddedBitmaps() const
{ return maDevFontAttributes.UseEmbeddedBitmap() == EMBEDDEDBITMAP_FALSE; }
bool IsSymbolFont() const { return maDevFontAttributes.IsSymbolFont(); }
const ImplFontAttributes& GetFontAttributes() const { return maDevFontAttributes; }
void AnnounceFont( ImplDevFontList* );
int GetGlyphIndex( sal_UCS4 cChar ) const;
void CacheGlyphIndex( sal_UCS4 cChar, int nGI ) const;
bool HasExtraKerning() const;
int GetExtraKernPairs( ImplKernPairData** ) const;
int GetExtraGlyphKernValue( int nLeftGlyph, int nRightGlyph ) const;
private:
FT_FaceRec_* maFaceFT;
FtFontFile* mpFontFile;
const int mnFaceNum;
int mnRefCount;
const int mnSynthetic;
sal_IntPtr mnFontId;
ImplDevFontAttributes maDevFontAttributes;
// cache unicode->glyphid mapping because looking it up is expensive
// TODO: change to hash_multimap when a use case requires a m:n mapping
typedef ::std::hash_map<int,int> Int2IntMap;
mutable Int2IntMap* mpChar2Glyph;
mutable Int2IntMap* mpGlyph2Char;
void InitHashes() const;
const ExtraKernInfo* mpExtraKernInfo;
};
// these two inlines are very important for performance
inline int FtFontInfo::GetGlyphIndex( sal_UCS4 cChar ) const
{
if( !mpChar2Glyph )
return -1;
Int2IntMap::const_iterator it = mpChar2Glyph->find( cChar );
if( it == mpChar2Glyph->end() )
return -1;
return it->second;
}
inline void FtFontInfo::CacheGlyphIndex( sal_UCS4 cChar, int nIndex ) const
{
if( !mpChar2Glyph )
InitHashes();
(*mpChar2Glyph)[ cChar ] = nIndex;
(*mpGlyph2Char)[ nIndex ] = cChar;
}
// -----------------------------------------------------------------------
class FreetypeManager
{
public:
FreetypeManager();
~FreetypeManager();
long AddFontDir( const String& rUrlName );
void AddFontFile( const rtl::OString& rNormalizedName,
int nFaceNum, sal_IntPtr nFontId, const ImplDevFontAttributes&,
const ExtraKernInfo* );
void AnnounceFonts( ImplDevFontList* ) const;
void ClearFontList();
FreetypeServerFont* CreateFont( const ImplFontSelectData& );
private:
typedef ::std::hash_map<sal_IntPtr,FtFontInfo*> FontList;
FontList maFontList;
sal_IntPtr mnMaxFontId;
sal_IntPtr mnNextFontId;
};
// -----------------------------------------------------------------------
class FreetypeServerFont : public ServerFont
{
public:
FreetypeServerFont( const ImplFontSelectData&, FtFontInfo* );
virtual ~FreetypeServerFont();
virtual const ::rtl::OString* GetFontFileName() const { return mpFontInfo->GetFontFileName(); }
virtual int GetFontFaceNum() const { return mpFontInfo->GetFaceNum(); }
virtual bool TestFont() const;
virtual void FetchFontMetric( ImplFontMetricData&, long& rFactor ) const;
virtual int GetGlyphIndex( sal_UCS4 ) const;
int GetRawGlyphIndex( sal_UCS4 ) const;
int FixupGlyphIndex( int nGlyphIndex, sal_UCS4 ) const;
virtual bool GetAntialiasAdvice( void ) const;
virtual bool GetGlyphBitmap1( int nGlyphIndex, RawBitmap& ) const;
virtual bool GetGlyphBitmap8( int nGlyphIndex, RawBitmap& ) const;
virtual bool GetGlyphOutline( int nGlyphIndex, ::basegfx::B2DPolyPolygon& ) const;
virtual int GetGlyphKernValue( int nLeftGlyph, int nRightGlyph ) const;
virtual ULONG GetKernPairs( ImplKernPairData** ) const;
const unsigned char* GetTable( const char* pName, ULONG* pLength )
{ return mpFontInfo->GetTable( pName, pLength ); }
int GetEmUnits() const;
const FT_Size_Metrics& GetMetricsFT() const { return maSizeFT->metrics; }
protected:
friend class GlyphCache;
int ApplyGlyphTransform( int nGlyphFlags, FT_GlyphRec_*, bool ) const;
virtual void InitGlyphData( int nGlyphIndex, GlyphData& ) const;
virtual ULONG GetFontCodeRanges( sal_uInt32* pCodes ) const;
bool ApplyGSUB( const ImplFontSelectData& );
virtual ServerFontLayoutEngine* GetLayoutEngine();
private:
int mnWidth;
int mnPrioEmbedded;
int mnPrioAntiAlias;
FtFontInfo* mpFontInfo;
FT_Int mnLoadFlags;
double mfStretch;
FT_FaceRec_* maFaceFT;
FT_SizeRec_* maSizeFT;
bool mbArtItalic;
bool mbArtBold;
bool mbUseGamma;
typedef ::std::hash_map<int,int> GlyphSubstitution;
GlyphSubstitution maGlyphSubstitution;
rtl_UnicodeToTextConverter maRecodeConverter;
ServerFontLayoutEngine* mpLayoutEngine;
};
// -----------------------------------------------------------------------
class ImplFTSFontData : public ImplFontData
{
private:
FtFontInfo* mpFtFontInfo;
enum { IFTSFONT_MAGIC = 0x1F150A1C };
public:
ImplFTSFontData( FtFontInfo*, const ImplDevFontAttributes& );
FtFontInfo* GetFtFontInfo() const { return mpFtFontInfo; }
virtual ImplFontEntry* CreateFontInstance( ImplFontSelectData& ) const;
virtual ImplFontData* Clone() const { return new ImplFTSFontData( *this ); }
virtual sal_IntPtr GetFontId() const { return mpFtFontInfo->GetFontId(); }
static bool CheckFontData( const ImplFontData& r ) { return r.CheckMagic( IFTSFONT_MAGIC ); }
};
// -----------------------------------------------------------------------
#endif // _SV_GCACHFTYP_HXX
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