// Copyright 2014 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com #ifndef CORE_INCLUDE_FXGE_FX_FONT_H_ #define CORE_INCLUDE_FXGE_FX_FONT_H_ #include <map> #include <memory> #include <vector> #include "core/fxcrt/include/fx_system.h" #include "core/include/fxge/fx_dib.h" #include "core/include/fxge/fx_freetype.h" typedef struct FT_FaceRec_* FXFT_Face; typedef void* FXFT_Library; class CFX_FaceCache; class CFX_FontFaceInfo; class CFX_FontMapper; class CFX_PathData; class CFX_SizeGlyphCache; class CFX_SubstFont; class CTTFontDesc; class IFX_SystemFontInfo; #ifdef _SKIA_SUPPORT_ class SkTypeface; using CFX_TypeFace = SkTypeface; #endif #define FXFONT_FIXED_PITCH 0x01 #define FXFONT_SERIF 0x02 #define FXFONT_SYMBOLIC 0x04 #define FXFONT_SCRIPT 0x08 #define FXFONT_ITALIC 0x40 #define FXFONT_BOLD 0x40000 #define FXFONT_USEEXTERNATTR 0x80000 #define FXFONT_CIDFONT 0x100000 #ifdef PDF_ENABLE_XFA #define FXFONT_EXACTMATCH 0x80000000 #endif // PDF_ENABLE_XFA #define FXFONT_ANSI_CHARSET 0 #define FXFONT_DEFAULT_CHARSET 1 #define FXFONT_SYMBOL_CHARSET 2 #define FXFONT_SHIFTJIS_CHARSET 128 #define FXFONT_HANGEUL_CHARSET 129 #define FXFONT_GB2312_CHARSET 134 #define FXFONT_CHINESEBIG5_CHARSET 136 #define FXFONT_THAI_CHARSET 222 #define FXFONT_EASTEUROPE_CHARSET 238 #define FXFONT_RUSSIAN_CHARSET 204 #define FXFONT_GREEK_CHARSET 161 #define FXFONT_TURKISH_CHARSET 162 #define FXFONT_HEBREW_CHARSET 177 #define FXFONT_ARABIC_CHARSET 178 #define FXFONT_BALTIC_CHARSET 186 #define FXFONT_FF_FIXEDPITCH 1 #define FXFONT_FF_ROMAN (1 << 4) #define FXFONT_FF_SCRIPT (4 << 4) #define FXFONT_FW_NORMAL 400 #define FXFONT_FW_BOLD 700 class CFX_Font { public: CFX_Font(); ~CFX_Font(); void LoadSubst(const CFX_ByteString& face_name, FX_BOOL bTrueType, uint32_t flags, int weight, int italic_angle, int CharsetCP, FX_BOOL bVertical = FALSE); FX_BOOL LoadEmbedded(const uint8_t* data, uint32_t size); FXFT_Face GetFace() const { return m_Face; } #ifdef PDF_ENABLE_XFA FX_BOOL LoadFile(IFX_FileRead* pFile, int nFaceIndex = 0, int* pFaceCount = NULL); FX_BOOL LoadClone(const CFX_Font* pFont); CFX_SubstFont* GetSubstFont() const { return m_pSubstFont; } void SetFace(FXFT_Face face) { m_Face = face; } void SetSubstFont(CFX_SubstFont* subst) { m_pSubstFont = subst; } #else // PDF_ENABLE_XFA const CFX_SubstFont* GetSubstFont() const { return m_pSubstFont; } #endif // PDF_ENABLE_XFA CFX_PathData* LoadGlyphPath(uint32_t glyph_index, int dest_width = 0); int GetGlyphWidth(uint32_t glyph_index); int GetAscent() const; int GetDescent() const; FX_BOOL GetGlyphBBox(uint32_t glyph_index, FX_RECT& bbox); FX_BOOL IsItalic() const; FX_BOOL IsBold() const; FX_BOOL IsFixedWidth() const; FX_BOOL IsVertical() const { return m_bVertical; } CFX_WideString GetPsName() const; CFX_ByteString GetFamilyName() const; CFX_ByteString GetFaceName() const; FX_BOOL IsTTFont() const; FX_BOOL GetBBox(FX_RECT& bbox); int GetHeight() const; int GetULPos() const; int GetULthickness() const; int GetMaxAdvanceWidth() const; FX_BOOL IsEmbedded() const { return m_bEmbedded; } uint8_t* GetSubData() const { return m_pGsubData; } void SetSubData(uint8_t* data) { m_pGsubData = data; } void* GetPlatformFont() const { return m_pPlatformFont; } void SetPlatformFont(void* font) { m_pPlatformFont = font; } uint8_t* GetFontData() const { return m_pFontData; } uint32_t GetSize() const { return m_dwSize; } void AdjustMMParams(int glyph_index, int width, int weight); private: void ReleasePlatformResource(); void DeleteFace(); FXFT_Face m_Face; CFX_SubstFont* m_pSubstFont; uint8_t* m_pFontDataAllocation; uint8_t* m_pFontData; uint8_t* m_pGsubData; uint32_t m_dwSize; CFX_BinaryBuf m_OtfFontData; void* m_hHandle; void* m_pPlatformFont; void* m_pPlatformFontCollection; void* m_pDwFont; FX_BOOL m_bDwLoaded; FX_BOOL m_bEmbedded; FX_BOOL m_bVertical; #ifdef PDF_ENABLE_XFA protected: FX_BOOL m_bLogic; void* m_pOwnedStream; #endif // PDF_ENABLE_XFA }; #define ENCODING_INTERNAL 0 #define ENCODING_UNICODE 1 #ifdef PDF_ENABLE_XFA #define FXFM_ENC_TAG(a, b, c, d) \ (((uint32_t)(a) << 24) | ((uint32_t)(b) << 16) | ((uint32_t)(c) << 8) | \ (uint32_t)(d)) #define FXFM_ENCODING_NONE FXFM_ENC_TAG(0, 0, 0, 0) #define FXFM_ENCODING_MS_SYMBOL FXFM_ENC_TAG('s', 'y', 'm', 'b') #define FXFM_ENCODING_UNICODE FXFM_ENC_TAG('u', 'n', 'i', 'c') #define FXFM_ENCODING_MS_SJIS FXFM_ENC_TAG('s', 'j', 'i', 's') #define FXFM_ENCODING_MS_GB2312 FXFM_ENC_TAG('g', 'b', ' ', ' ') #define FXFM_ENCODING_MS_BIG5 FXFM_ENC_TAG('b', 'i', 'g', '5') #define FXFM_ENCODING_MS_WANSUNG FXFM_ENC_TAG('w', 'a', 'n', 's') #define FXFM_ENCODING_MS_JOHAB FXFM_ENC_TAG('j', 'o', 'h', 'a') #define FXFM_ENCODING_ADOBE_STANDARD FXFM_ENC_TAG('A', 'D', 'O', 'B') #define FXFM_ENCODING_ADOBE_EXPERT FXFM_ENC_TAG('A', 'D', 'B', 'E') #define FXFM_ENCODING_ADOBE_CUSTOM FXFM_ENC_TAG('A', 'D', 'B', 'C') #define FXFM_ENCODING_ADOBE_LATIN_1 FXFM_ENC_TAG('l', 'a', 't', '1') #define FXFM_ENCODING_OLD_LATIN_2 FXFM_ENC_TAG('l', 'a', 't', '2') #define FXFM_ENCODING_APPLE_ROMAN FXFM_ENC_TAG('a', 'r', 'm', 'n') #endif // PDF_ENABLE_XFA class CFX_UnicodeEncoding { public: explicit CFX_UnicodeEncoding(CFX_Font* pFont); virtual ~CFX_UnicodeEncoding(); virtual uint32_t GlyphFromCharCode(uint32_t charcode); protected: // Unowned, not nullptr. CFX_Font* m_pFont; }; #ifdef PDF_ENABLE_XFA class CFX_UnicodeEncodingEx : public CFX_UnicodeEncoding { public: CFX_UnicodeEncodingEx(CFX_Font* pFont, uint32_t EncodingID); ~CFX_UnicodeEncodingEx() override; // CFX_UnicodeEncoding: uint32_t GlyphFromCharCode(uint32_t charcode) override; uint32_t CharCodeFromUnicode(FX_WCHAR Unicode) const; private: uint32_t m_nEncodingID; }; CFX_UnicodeEncodingEx* FX_CreateFontEncodingEx( CFX_Font* pFont, uint32_t nEncodingID = FXFM_ENCODING_NONE); #endif // PDF_ENABLE_XFA #define FXFONT_SUBST_MM 0x01 #define FXFONT_SUBST_GLYPHPATH 0x04 #define FXFONT_SUBST_CLEARTYPE 0x08 #define FXFONT_SUBST_TRANSFORM 0x10 #define FXFONT_SUBST_NONSYMBOL 0x20 #define FXFONT_SUBST_EXACT 0x40 #define FXFONT_SUBST_STANDARD 0x80 class CFX_SubstFont { public: CFX_SubstFont(); void* m_ExtHandle; CFX_ByteString m_Family; int m_Charset; uint32_t m_SubstFlags; int m_Weight; int m_ItalicAngle; FX_BOOL m_bSubstOfCJK; int m_WeightCJK; FX_BOOL m_bItlicCJK; }; #define FX_FONT_FLAG_SERIF 0x01 #define FX_FONT_FLAG_FIXEDPITCH 0x02 #define FX_FONT_FLAG_ITALIC 0x04 #define FX_FONT_FLAG_BOLD 0x08 #define FX_FONT_FLAG_SYMBOLIC_SYMBOL 0x10 #define FX_FONT_FLAG_SYMBOLIC_DINGBATS 0x20 #define FX_FONT_FLAG_MULTIPLEMASTER 0x40 class CFX_FontMgr { public: CFX_FontMgr(); ~CFX_FontMgr(); void InitFTLibrary(); FXFT_Face GetCachedFace(const CFX_ByteString& face_name, int weight, FX_BOOL bItalic, uint8_t*& pFontData); FXFT_Face AddCachedFace(const CFX_ByteString& face_name, int weight, FX_BOOL bItalic, uint8_t* pData, uint32_t size, int face_index); FXFT_Face GetCachedTTCFace(int ttc_size, uint32_t checksum, int font_offset, uint8_t*& pFontData); FXFT_Face AddCachedTTCFace(int ttc_size, uint32_t checksum, uint8_t* pData, uint32_t size, int font_offset); FXFT_Face GetFileFace(const FX_CHAR* filename, int face_index); FXFT_Face GetFixedFace(const uint8_t* pData, uint32_t size, int face_index); void ReleaseFace(FXFT_Face face); void SetSystemFontInfo(IFX_SystemFontInfo* pFontInfo); FXFT_Face FindSubstFont(const CFX_ByteString& face_name, FX_BOOL bTrueType, uint32_t flags, int weight, int italic_angle, int CharsetCP, CFX_SubstFont* pSubstFont); bool GetBuiltinFont(size_t index, const uint8_t** pFontData, uint32_t* size); CFX_FontMapper* GetBuiltinMapper() const { return m_pBuiltinMapper.get(); } FXFT_Library GetFTLibrary() const { return m_FTLibrary; } private: std::unique_ptr<CFX_FontMapper> m_pBuiltinMapper; std::map<CFX_ByteString, CTTFontDesc*> m_FaceMap; FXFT_Library m_FTLibrary; }; class IFX_FontEnumerator { public: virtual void HitFont() = 0; virtual void Finish() = 0; protected: virtual ~IFX_FontEnumerator() {} }; class IFX_AdditionalFontEnum { public: virtual int CountFiles() = 0; virtual IFX_FileStream* GetFontFile(int index) = 0; protected: virtual ~IFX_AdditionalFontEnum() {} }; class CFX_FontMapper { public: explicit CFX_FontMapper(CFX_FontMgr* mgr); ~CFX_FontMapper(); void SetSystemFontInfo(IFX_SystemFontInfo* pFontInfo); IFX_SystemFontInfo* GetSystemFontInfo() { return m_pFontInfo; } void AddInstalledFont(const CFX_ByteString& name, int charset); void LoadInstalledFonts(); std::vector<CFX_ByteString> m_InstalledTTFonts; void SetFontEnumerator(IFX_FontEnumerator* pFontEnumerator) { m_pFontEnumerator = pFontEnumerator; } IFX_FontEnumerator* GetFontEnumerator() const { return m_pFontEnumerator; } FXFT_Face FindSubstFont(const CFX_ByteString& face_name, FX_BOOL bTrueType, uint32_t flags, int weight, int italic_angle, int CharsetCP, CFX_SubstFont* pSubstFont); #ifdef PDF_ENABLE_XFA FXFT_Face FindSubstFontByUnicode(uint32_t dwUnicode, uint32_t flags, int weight, int italic_angle); #endif // PDF_ENABLE_XFA FX_BOOL IsBuiltinFace(const FXFT_Face face) const; int GetFaceSize() const; CFX_ByteString GetFaceName(int index) const { return m_FaceArray[index]; } private: static const size_t MM_FACE_COUNT = 2; static const size_t FOXIT_FACE_COUNT = 14; CFX_ByteString GetPSNameFromTT(void* hFont); CFX_ByteString MatchInstalledFonts(const CFX_ByteString& norm_name); FXFT_Face UseInternalSubst(CFX_SubstFont* pSubstFont, int iBaseFont, int italic_angle, int weight, int picthfamily); FX_BOOL m_bListLoaded; FXFT_Face m_MMFaces[MM_FACE_COUNT]; CFX_ByteString m_LastFamily; CFX_ArrayTemplate<uint32_t> m_CharsetArray; std::vector<CFX_ByteString> m_FaceArray; IFX_SystemFontInfo* m_pFontInfo; FXFT_Face m_FoxitFaces[FOXIT_FACE_COUNT]; IFX_FontEnumerator* m_pFontEnumerator; CFX_FontMgr* const m_pFontMgr; }; class IFX_SystemFontInfo { public: static IFX_SystemFontInfo* CreateDefault(const char** pUserPaths); virtual void Release() = 0; virtual FX_BOOL EnumFontList(CFX_FontMapper* pMapper) = 0; virtual void* MapFont(int weight, FX_BOOL bItalic, int charset, int pitch_family, const FX_CHAR* face, int& iExact) = 0; #ifdef PDF_ENABLE_XFA virtual void* MapFontByUnicode(uint32_t dwUnicode, int weight, FX_BOOL bItalic, int pitch_family); #endif // PDF_ENABLE_XFA virtual void* GetFont(const FX_CHAR* face) = 0; virtual uint32_t GetFontData(void* hFont, uint32_t table, uint8_t* buffer, uint32_t size) = 0; virtual FX_BOOL GetFaceName(void* hFont, CFX_ByteString& name) = 0; virtual FX_BOOL GetFontCharset(void* hFont, int& charset) = 0; virtual int GetFaceIndex(void* hFont); virtual void DeleteFont(void* hFont) = 0; virtual void* RetainFont(void* hFont); protected: virtual ~IFX_SystemFontInfo() {} }; class CFX_FolderFontInfo : public IFX_SystemFontInfo { public: CFX_FolderFontInfo(); ~CFX_FolderFontInfo() override; void AddPath(const CFX_ByteStringC& path); // IFX_SytemFontInfo: void Release() override; FX_BOOL EnumFontList(CFX_FontMapper* pMapper) override; void* MapFont(int weight, FX_BOOL bItalic, int charset, int pitch_family, const FX_CHAR* face, int& bExact) override; #ifdef PDF_ENABLE_XFA void* MapFontByUnicode(uint32_t dwUnicode, int weight, FX_BOOL bItalic, int pitch_family) override; #endif // PDF_ENABLE_XFA void* GetFont(const FX_CHAR* face) override; uint32_t GetFontData(void* hFont, uint32_t table, uint8_t* buffer, uint32_t size) override; void DeleteFont(void* hFont) override; FX_BOOL GetFaceName(void* hFont, CFX_ByteString& name) override; FX_BOOL GetFontCharset(void* hFont, int& charset) override; protected: void ScanPath(const CFX_ByteString& path); void ScanFile(const CFX_ByteString& path); void ReportFace(const CFX_ByteString& path, FXSYS_FILE* pFile, uint32_t filesize, uint32_t offset); void* GetSubstFont(const CFX_ByteString& face); void* FindFont(int weight, FX_BOOL bItalic, int charset, int pitch_family, const FX_CHAR* family, FX_BOOL bMatchName); std::map<CFX_ByteString, CFX_FontFaceInfo*> m_FontList; std::vector<CFX_ByteString> m_PathList; CFX_FontMapper* m_pMapper; }; class CFX_CountedFaceCache { public: CFX_FaceCache* m_Obj; uint32_t m_nCount; }; class CFX_FontCache { public: CFX_FontCache(); ~CFX_FontCache(); CFX_FaceCache* GetCachedFace(CFX_Font* pFont); void ReleaseCachedFace(CFX_Font* pFont); void FreeCache(FX_BOOL bRelease = FALSE); #ifdef _SKIA_SUPPORT_ CFX_TypeFace* GetDeviceCache(CFX_Font* pFont); #endif private: using CFX_FTCacheMap = std::map<FXFT_Face, CFX_CountedFaceCache*>; CFX_FTCacheMap m_FTFaceMap; CFX_FTCacheMap m_ExtFaceMap; }; class CFX_AutoFontCache { public: CFX_AutoFontCache(CFX_FontCache* pFontCache, CFX_Font* pFont) : m_pFontCache(pFontCache), m_pFont(pFont) {} ~CFX_AutoFontCache() { m_pFontCache->ReleaseCachedFace(m_pFont); } CFX_FontCache* m_pFontCache; CFX_Font* m_pFont; }; #define FX_FONTCACHE_DEFINE(pFontCache, pFont) \ CFX_AutoFontCache autoFontCache((pFontCache), (pFont)) class CFX_GlyphBitmap { public: int m_Top; int m_Left; CFX_DIBitmap m_Bitmap; }; class CFX_FaceCache { public: explicit CFX_FaceCache(FXFT_Face face); ~CFX_FaceCache(); const CFX_GlyphBitmap* LoadGlyphBitmap(CFX_Font* pFont, uint32_t glyph_index, FX_BOOL bFontStyle, const CFX_Matrix* pMatrix, int dest_width, int anti_alias, int& text_flags); const CFX_PathData* LoadGlyphPath(CFX_Font* pFont, uint32_t glyph_index, int dest_width); #ifdef _SKIA_SUPPORT_ CFX_TypeFace* GetDeviceCache(CFX_Font* pFont); #endif private: CFX_GlyphBitmap* RenderGlyph(CFX_Font* pFont, uint32_t glyph_index, FX_BOOL bFontStyle, const CFX_Matrix* pMatrix, int dest_width, int anti_alias); CFX_GlyphBitmap* RenderGlyph_Nativetext(CFX_Font* pFont, uint32_t glyph_index, const CFX_Matrix* pMatrix, int dest_width, int anti_alias); CFX_GlyphBitmap* LookUpGlyphBitmap(CFX_Font* pFont, const CFX_Matrix* pMatrix, CFX_ByteStringC& FaceGlyphsKey, uint32_t glyph_index, FX_BOOL bFontStyle, int dest_width, int anti_alias); void InitPlatform(); void DestroyPlatform(); FXFT_Face const m_Face; std::map<CFX_ByteString, CFX_SizeGlyphCache*> m_SizeMap; std::map<uint32_t, CFX_PathData*> m_PathMap; CFX_DIBitmap* m_pBitmap; #ifdef _SKIA_SUPPORT_ CFX_TypeFace* m_pTypeface; #endif }; struct FXTEXT_GLYPHPOS { const CFX_GlyphBitmap* m_pGlyph; int m_OriginX; int m_OriginY; FX_FLOAT m_fOriginX; FX_FLOAT m_fOriginY; }; FX_RECT FXGE_GetGlyphsBBox(FXTEXT_GLYPHPOS* pGlyphAndPos, int nChars, int anti_alias, FX_FLOAT retinaScaleX = 1.0f, FX_FLOAT retinaScaleY = 1.0f); class IFX_GSUBTable { public: static IFX_GSUBTable* Create(CFX_Font* pFont); virtual FX_BOOL GetVerticalGlyph(uint32_t glyphnum, uint32_t* vglyphnum) = 0; protected: virtual ~IFX_GSUBTable() {} }; CFX_ByteString GetNameFromTT(const uint8_t* name_table, uint32_t name_table_size, uint32_t name); int PDF_GetStandardFontName(CFX_ByteString* name); #endif // CORE_INCLUDE_FXGE_FX_FONT_H_