diff options
Diffstat (limited to 'Build/source/texk/lcdf-typetools/lcdf-typetools-2.104/include/efont/cff.hh')
-rw-r--r-- | Build/source/texk/lcdf-typetools/lcdf-typetools-2.104/include/efont/cff.hh | 460 |
1 files changed, 460 insertions, 0 deletions
diff --git a/Build/source/texk/lcdf-typetools/lcdf-typetools-2.104/include/efont/cff.hh b/Build/source/texk/lcdf-typetools/lcdf-typetools-2.104/include/efont/cff.hh new file mode 100644 index 00000000000..3035fe76a60 --- /dev/null +++ b/Build/source/texk/lcdf-typetools/lcdf-typetools-2.104/include/efont/cff.hh @@ -0,0 +1,460 @@ +// -*- related-file-name: "../../libefont/cff.cc" -*- +#ifndef EFONT_CFF_HH +#define EFONT_CFF_HH +#include <lcdf/hashmap.hh> +#include <efont/t1cs.hh> +class ErrorHandler; +namespace Efont { +class Type1Encoding; + +class Cff { public: + + class Dict; + class IndexIterator; + class Charset; + class FDSelect; + class FontParent; + class Font; + class CIDFont; + class ChildFont; + + explicit Cff(const String& str, unsigned units_per_em, + ErrorHandler* errh = 0); + ~Cff(); + + bool ok() const { return _error >= 0; } + int error() const { return _error; } + + const String &data_string() const { return _data_string; } + const uint8_t *data() const { return _data; } + int length() const { return _len; } + + int nfonts() const { return _name_index.size(); } + PermString font_name(int i) const { return _name_index[i]; } + FontParent *font(PermString = PermString(), ErrorHandler * = 0); + + enum { NSTANDARD_STRINGS = 391, MAX_SID = 64999 }; + int max_sid() const { return NSTANDARD_STRINGS - 1 + _strings.size(); } + int sid(PermString); + String sid_string(int sid) const; + PermString sid_permstring(int sid) const; + + int ngsubrs() const { return _gsubrs_index.nitems(); } + Charstring *gsubr(int i); + + unsigned units_per_em() const { return _units_per_em; } + + enum DictOperator { + oVersion = 0, oNotice = 1, oFullName = 2, oFamilyName = 3, + oWeight = 4, oFontBBox = 5, oBlueValues = 6, oOtherBlues = 7, + oFamilyBlues = 8, oFamilyOtherBlues = 9, oStdHW = 10, oStdVW = 11, + oUniqueID = 13, oXUID = 14, oCharset = 15, oEncoding = 16, + oCharStrings = 17, oPrivate = 18, oSubrs = 19, oDefaultWidthX = 20, + oNominalWidthX = 21, + oCopyright = 32 + 0, oIsFixedPitch = 32 + 1, oItalicAngle = 32 + 2, + oUnderlinePosition = 32 + 3, oUnderlineThickness = 32 + 4, + oPaintType = 32 + 5, oCharstringType = 32 + 6, oFontMatrix = 32 + 7, + oStrokeWidth = 32 + 8, oBlueScale = 32 + 9, oBlueShift = 32 + 10, + oBlueFuzz = 32 + 11, oStemSnapH = 32 + 12, oStemSnapV = 32 + 13, + oForceBold = 32 + 14, oLanguageGroup = 32 + 17, + oExpansionFactor = 32 + 18, oInitialRandomSeed = 32 + 19, + oSyntheticBase = 32 + 20, oPostScript = 32 + 21, + oBaseFontName = 32 + 22, oBaseFontBlend = 32 + 23, + oROS = 32 + 30, oCIDFontVersion = 32 + 31, oCIDFontRevision = 32 + 32, + oCIDFontType = 32 + 33, oCIDCount = 32 + 34, oUIDBase = 32 + 35, + oFDArray = 32 + 36, oFDSelect = 32 + 37, oFontName = 32 + 38, + oLastOperator = oFontName + }; + + enum DictType { + tNone = 0, tSID, tFontNumber, tBoolean, tNumber, tOffset, tLocalOffset, + tArray, tArray2, tArray3, tArray4, tArray5, tArray6, tPrivateType, + tTypeMask = 0x7F, tPrivate = 0x80, tP = tPrivate + }; + + static const char * const operator_names[]; + static const int operator_types[]; + + + class IndexIterator { public: + + IndexIterator() : _offset(0), _last_offset(0), _offsize(-1) { } + IndexIterator(const uint8_t *, int, int, ErrorHandler * = 0, const char *index_name = "INDEX"); + + int error() const { return (_offsize < 0 ? _offsize : 0); } + + typedef bool (IndexIterator::*unspecified_bool_type)() const; + bool live() const { return _offset < _last_offset; } + operator unspecified_bool_type() const { + return live() ? &IndexIterator::live : 0; + } + int nitems() const; + + inline const uint8_t *operator*() const; + inline const uint8_t *operator[](int) const; + const uint8_t *index_end() const; + + void operator++() { _offset += _offsize; } + void operator++(int) { ++(*this); } + + private: + + const uint8_t *_contents; + const uint8_t *_offset; + const uint8_t *_last_offset; + int _offsize; + + inline uint32_t offset_at(const uint8_t *) const; + + }; + + private: + + String _data_string; + const uint8_t *_data; + int _len; + + int _error; + + Vector<PermString> _name_index; + + IndexIterator _top_dict_index; + + IndexIterator _strings_index; + mutable Vector<PermString> _strings; + mutable HashMap<PermString, int> _strings_map; + + IndexIterator _gsubrs_index; + Vector<Charstring *> _gsubrs_cs; + + unsigned _units_per_em; + + int parse_header(ErrorHandler *); + int font_offset(int, int &, int &) const; + int font_offset(PermString, int &, int &) const; + + enum { HEADER_SIZE = 4 }; + +}; + + +class Cff::Dict { public: + + Dict(); + Dict(Cff *, int pos, int dict_len, ErrorHandler * = 0, const char *dict_name = "DICT"); + int assign(Cff *, int pos, int dict_len, ErrorHandler * = 0, const char *dict_name = "DICT"); + + bool ok() const { return _error >= 0; } + int error() const { return _error; } + + int check(bool is_private, ErrorHandler * = 0, const char *dict_name = "DICT") const; + + bool has(DictOperator) const; + inline bool has_first(DictOperator) const; + bool xvalue(DictOperator, Vector<double> &) const; + bool xvalue(DictOperator, int *) const; + bool xvalue(DictOperator, double *) const; + bool value(DictOperator, Vector<double> &) const; + bool value(DictOperator, int *) const; + bool value(DictOperator, double *) const; + + void unparse(ErrorHandler *, const char *) const; + + private: + + Cff *_cff; + int _pos; + Vector<int> _operators; + Vector<int> _pointers; + Vector<double> _operands; + int _error; + +}; + +class Cff::Charset { public: + + Charset() : _error(-1) { } + Charset(const Cff *, int pos, int nglyphs, int max_sid, ErrorHandler * = 0); + void assign(const Cff *, int pos, int nglyphs, int max_sid, ErrorHandler * = 0); + + int error() const { return _error; } + + int nglyphs() const { return _sids.size(); } + int nsids() const { return _gids.size(); } + + inline int gid_to_sid(int gid) const; + inline int sid_to_gid(int sid) const; + + private: + + Vector<int> _sids; + Vector<int> _gids; + int _error; + + void assign(const int *, int, int); + int parse(const Cff *, int pos, int nglyphs, int max_sid, ErrorHandler *); + +}; + +class Cff::FDSelect { public: + + FDSelect() : _fds(0), _my_fds(false), _nglyphs(0), _error(-1) { } + ~FDSelect(); + void assign(const Cff *, int pos, int nglyphs, ErrorHandler * = 0); + + int error() const { return _error; } + + int nglyphs() const { return _nglyphs; } + inline int gid_to_fd(int gid) const; + + private: + + const uint8_t *_fds; + bool _my_fds; + int _nglyphs; + int _error; + + FDSelect(const FDSelect &); + FDSelect &operator=(const FDSelect &); + int parse(const Cff *, int pos, int nglyphs, ErrorHandler *); + +}; + + +class Cff::FontParent : public CharstringProgram { public: + + FontParent(Cff* cff); + + bool ok() const { return _error >= 0; } + int error() const { return _error; } + + int ngsubrs_x() const { return _cff->ngsubrs(); } + int ngsubrs() const { return ngsubrs_x(); } + Charstring *gsubr(int) const; + int gsubr_bias() const; + + private: + + Cff* _cff; + int _charstring_type; + int _error; + + FontParent(const FontParent &); + FontParent &operator=(const FontParent &); + + Charstring *charstring(const IndexIterator &, int) const; + + friend class Cff::Font; + friend class Cff::CIDFont; + friend class Cff::ChildFont; + +}; + +class Cff::CIDFont : public Cff::FontParent { public: + + CIDFont(Cff* cff, PermString, const Dict &, ErrorHandler *); + ~CIDFont(); + + PermString font_name() const { return _font_name; } + void font_matrix(double[6]) const; + + int nglyphs() const { return _charstrings_index.nitems(); } + PermString glyph_name(int) const; + void glyph_names(Vector<PermString> &) const; + Charstring *glyph(int) const; + Charstring *glyph(PermString) const; + int glyphid(PermString) const; + const CharstringProgram *child_program(int) const; + + bool dict_has(DictOperator) const; + String dict_string(DictOperator) const; + bool dict_value(DictOperator, double *) const; + bool dict_xvalue(DictOperator, double, double *) const; + bool dict_value(DictOperator, Vector<double> &) const; + + private: + + PermString _font_name; + + Dict _top_dict; + Dict _private_dict; + + Cff::Charset _charset; + + IndexIterator _charstrings_index; + mutable Vector<Charstring *> _charstrings_cs; + + Vector<ChildFont *> _child_fonts; + Cff::FDSelect _fdselect; + + const Dict &dict_of(DictOperator) const; + +}; + +class Cff::ChildFont : public Cff::FontParent { public: + + ChildFont(Cff* cff, Cff::CIDFont *, int charstring_type, const Dict &, ErrorHandler * = 0); + ~ChildFont(); + + bool ok() const { return _error >= 0; } + int error() const { return _error; } + + PermString font_name() const { return _parent->font_name(); } + void font_matrix(double m[6]) const { _parent->font_matrix(m); } + + inline bool cid() const; + + int nsubrs_x() const { return _subrs_index.nitems(); } + int nsubrs() const { return nsubrs_x(); } + Charstring *subr(int) const; + int subr_bias() const; + + int nglyphs() const { return _parent->nglyphs(); } + PermString glyph_name(int gi) const { return _parent->glyph_name(gi); } + void glyph_names(Vector<PermString> &v) const { _parent->glyph_names(v); } + Charstring *glyph(int gi) const { return _parent->glyph(gi); } + Charstring *glyph(PermString n) const { return _parent->glyph(n); } + + double global_width_x(bool) const; + + private: + + Cff::CIDFont *_parent; + + Dict _top_dict; + Dict _private_dict; + + IndexIterator _subrs_index; + mutable Vector<Charstring *> _subrs_cs; + + double _default_width_x; + double _nominal_width_x; + + ChildFont(const ChildFont &); // does not exist + ChildFont &operator=(const ChildFont &); // does not exist + + Charstring *charstring(const IndexIterator &, int) const; + + friend class Cff::Font; + +}; + +class Cff::Font : public Cff::ChildFont { public: + + Font(Cff* cff, PermString, const Dict &, ErrorHandler *); + ~Font(); + + PermString font_name() const { return _font_name; } + void font_matrix(double[6]) const; + + int nglyphs() const { return _charstrings_index.nitems(); } + PermString glyph_name(int) const; + void glyph_names(Vector<PermString> &) const; + Charstring *glyph(int) const; + Charstring *glyph(PermString) const; + int glyphid(PermString) const; + + Type1Encoding *type1_encoding() const; + Type1Encoding *type1_encoding_copy() const; + + bool dict_has(DictOperator) const; + String dict_string(DictOperator) const; + inline bool dict_value(DictOperator, double *) const; + inline bool dict_value(DictOperator, Vector<double> &) const; + const Dict &top_dict() const { return _top_dict; } + + private: + + PermString _font_name; + + Cff::Charset _charset; + + IndexIterator _charstrings_index; + mutable Vector<Charstring *> _charstrings_cs; + + int _encoding_pos; + int _encoding[256]; + mutable Type1Encoding *_t1encoding; + + int parse_encoding(int pos, ErrorHandler *); + int assign_standard_encoding(const int *standard_encoding); + + inline const Dict &dict_of(DictOperator) const; + +}; + + +inline uint32_t Cff::IndexIterator::offset_at(const uint8_t *x) const +{ + switch (_offsize) { + case 0: + return 0; + case 1: + return x[0]; + case 2: + return (x[0] << 8) | x[1]; + case 3: + return (x[0] << 16) | (x[1] << 8) | x[2]; + default: + return (x[0] << 24) | (x[1] << 16) | (x[2] << 8) | x[3]; + } +} + +inline const uint8_t *Cff::IndexIterator::operator*() const +{ + assert(live()); + return _contents + offset_at(_offset); +} + +inline const uint8_t *Cff::IndexIterator::operator[](int which) const +{ + assert(live() && _offset + which * _offsize <= _last_offset); + return _contents + offset_at(_offset + which * _offsize); +} + +inline int Cff::Charset::gid_to_sid(int gid) const +{ + if (gid >= 0 && gid < _sids.size()) + return _sids[gid]; + else + return -1; +} + +inline int Cff::Charset::sid_to_gid(int sid) const +{ + if (sid >= 0 && sid < _gids.size()) + return _gids[sid]; + else + return -1; +} + +inline int Cff::FDSelect::gid_to_fd(int gid) const +{ + if (gid >= 0 && gid < _nglyphs) + return _fds[gid]; + else + return -1; +} + +inline bool Cff::Dict::has_first(DictOperator op) const +{ + return _operators.size() && _operators[0] == op; +} + +inline const Cff::Dict &Cff::Font::dict_of(DictOperator op) const +{ + return (op >= 0 && op <= oLastOperator && (operator_types[op] & tP) ? _private_dict : _top_dict); +} + +inline bool Cff::Font::dict_value(DictOperator op, double *val) const +{ + return dict_of(op).value(op, val); +} + +inline bool Cff::Font::dict_value(DictOperator op, Vector<double> &val) const +{ + return dict_of(op).value(op, val); +} + +} +#endif |