Files
odfstudio/vcl/source/fontsubset/cff.cxx
T
Caolán McNamara daca39681e revive sftfuzzer for a different code path
Change-Id: Idd2d422c54707262bb76069640e7e251489debfe
Reviewed-on: https://gerrit.collaboraoffice.com/c/core/+/743
Tested-by: Jenkins CPCI <releng@collaboraoffice.com>
Reviewed-by: Michael Stahl <michael.stahl@collabora.com>
(cherry picked from commit acfe01e58b870f9414fc5b09c2c7abcc8bc5f764)
Cherry-pick note: the fuzzer has been adapted to test
4c3c87e79d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/204900
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>
Tested-by: Jenkins
2026-05-13 16:18:54 +02:00

3438 lines
113 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <cstdio>
#include <cstring>
#include <vector>
#include <assert.h>
#include <font/TrueTypeFont.hxx>
#include <fontsubset.hxx>
#include <glyphid.hxx>
#include <comphelper/flagguard.hxx>
#include <o3tl/safeint.hxx>
#include <o3tl/sprintf.hxx>
#include <rtl/math.hxx>
#include <rtl/strbuf.hxx>
#include <rtl/string.hxx>
#include <strhelper.hxx>
#include <sal/log.hxx>
#include <tools/stream.hxx>
typedef sal_uInt8 U8;
typedef sal_uInt16 U16;
typedef sal_Int64 S64;
typedef double RealType;
typedef RealType ValType;
constexpr OString tok_notdef = ".notdef"_ostr;
constexpr OString tok_space = "space"_ostr;
constexpr OString tok_exclam = "exclam"_ostr;
constexpr OString tok_quotedbl = "quotedbl"_ostr;
constexpr OString tok_numbersign = "numbersign"_ostr;
constexpr OString tok_dollar = "dollar"_ostr;
constexpr OString tok_percent = "percent"_ostr;
constexpr OString tok_ampersand = "ampersand"_ostr;
constexpr OString tok_quoteright = "quoteright"_ostr;
constexpr OString tok_parenleft = "parenleft"_ostr;
constexpr OString tok_parenright = "parenright"_ostr;
constexpr OString tok_asterisk = "asterisk"_ostr;
constexpr OString tok_plus = "plus"_ostr;
constexpr OString tok_comma = "comma"_ostr;
constexpr OString tok_hyphen = "hyphen"_ostr;
constexpr OString tok_period = "period"_ostr;
constexpr OString tok_slash = "slash"_ostr;
constexpr OString tok_zero = "zero"_ostr;
constexpr OString tok_one = "one"_ostr;
constexpr OString tok_two = "two"_ostr;
constexpr OString tok_three = "three"_ostr;
constexpr OString tok_four = "four"_ostr;
constexpr OString tok_five = "five"_ostr;
constexpr OString tok_six = "six"_ostr;
constexpr OString tok_seven = "seven"_ostr;
constexpr OString tok_eight = "eight"_ostr;
constexpr OString tok_nine = "nine"_ostr;
constexpr OString tok_colon = "colon"_ostr;
constexpr OString tok_semicolon = "semicolon"_ostr;
constexpr OString tok_less = "less"_ostr;
constexpr OString tok_equal = "equal"_ostr;
constexpr OString tok_greater = "greater"_ostr;
constexpr OString tok_question = "question"_ostr;
constexpr OString tok_at = "at"_ostr;
constexpr OString tok_A = "A"_ostr;
constexpr OString tok_B = "B"_ostr;
constexpr OString tok_C = "C"_ostr;
constexpr OString tok_D = "D"_ostr;
constexpr OString tok_E = "E"_ostr;
constexpr OString tok_F = "F"_ostr;
constexpr OString tok_G = "G"_ostr;
constexpr OString tok_H = "H"_ostr;
constexpr OString tok_I = "I"_ostr;
constexpr OString tok_J = "J"_ostr;
constexpr OString tok_K = "K"_ostr;
constexpr OString tok_L = "L"_ostr;
constexpr OString tok_M = "M"_ostr;
constexpr OString tok_N = "N"_ostr;
constexpr OString tok_O = "O"_ostr;
constexpr OString tok_P = "P"_ostr;
constexpr OString tok_Q = "Q"_ostr;
constexpr OString tok_R = "R"_ostr;
constexpr OString tok_S = "S"_ostr;
constexpr OString tok_T = "T"_ostr;
constexpr OString tok_U = "U"_ostr;
constexpr OString tok_V = "V"_ostr;
constexpr OString tok_W = "W"_ostr;
constexpr OString tok_X = "X"_ostr;
constexpr OString tok_Y = "Y"_ostr;
constexpr OString tok_Z = "Z"_ostr;
constexpr OString tok_bracketleft = "bracketleft"_ostr;
constexpr OString tok_backslash = "backslash"_ostr;
constexpr OString tok_bracketright = "bracketright"_ostr;
constexpr OString tok_asciicircum = "asciicircum"_ostr;
constexpr OString tok_underscore = "underscore"_ostr;
constexpr OString tok_quoteleft = "quoteleft"_ostr;
constexpr OString tok_a = "a"_ostr;
constexpr OString tok_b = "b"_ostr;
constexpr OString tok_c = "c"_ostr;
constexpr OString tok_d = "d"_ostr;
constexpr OString tok_e = "e"_ostr;
constexpr OString tok_f = "f"_ostr;
constexpr OString tok_g = "g"_ostr;
constexpr OString tok_h = "h"_ostr;
constexpr OString tok_i = "i"_ostr;
constexpr OString tok_j = "j"_ostr;
constexpr OString tok_k = "k"_ostr;
constexpr OString tok_l = "l"_ostr;
constexpr OString tok_m = "m"_ostr;
constexpr OString tok_n = "n"_ostr;
constexpr OString tok_o = "o"_ostr;
constexpr OString tok_p = "p"_ostr;
constexpr OString tok_q = "q"_ostr;
constexpr OString tok_r = "r"_ostr;
constexpr OString tok_s = "s"_ostr;
constexpr OString tok_t = "t"_ostr;
constexpr OString tok_u = "u"_ostr;
constexpr OString tok_v = "v"_ostr;
constexpr OString tok_w = "w"_ostr;
constexpr OString tok_x = "x"_ostr;
constexpr OString tok_y = "y"_ostr;
constexpr OString tok_z = "z"_ostr;
constexpr OString tok_braceleft = "braceleft"_ostr;
constexpr OString tok_bar = "bar"_ostr;
constexpr OString tok_braceright = "braceright"_ostr;
constexpr OString tok_asciitilde = "asciitilde"_ostr;
constexpr OString tok_exclamdown = "exclamdown"_ostr;
constexpr OString tok_cent = "cent"_ostr;
constexpr OString tok_sterlin = "sterlin"_ostr;
constexpr OString tok_fraction = "fraction"_ostr;
constexpr OString tok_yen = "yen"_ostr;
constexpr OString tok_florin = "florin"_ostr;
constexpr OString tok_section = "section"_ostr;
constexpr OString tok_currency = "currency"_ostr;
constexpr OString tok_quotesingle = "quotesingle"_ostr;
constexpr OString tok_quotedblleft = "quotedblleft"_ostr;
constexpr OString tok_guillemotleft = "guillemotleft"_ostr;
constexpr OString tok_guilsinglleft = "guilsinglleft"_ostr;
constexpr OString tok_guilsinglright = "guilsinglright"_ostr;
constexpr OString tok_fi = "fi"_ostr;
constexpr OString tok_fl = "fl"_ostr;
constexpr OString tok_endash = "endash"_ostr;
constexpr OString tok_dagger = "dagger"_ostr;
constexpr OString tok_daggerdbl = "daggerdbl"_ostr;
constexpr OString tok_periodcentered = "periodcentered"_ostr;
constexpr OString tok_paragraph = "paragraph"_ostr;
constexpr OString tok_bullet = "bullet"_ostr;
constexpr OString tok_quotesinglbase = "quotesinglbase"_ostr;
constexpr OString tok_quotedblbase = "quotedblbase"_ostr;
constexpr OString tok_quotedblright = "quotedblright"_ostr;
constexpr OString tok_guillemotright = "guillemotright"_ostr;
constexpr OString tok_ellipsis = "ellipsis"_ostr;
constexpr OString tok_perthousand = "perthousand"_ostr;
constexpr OString tok_questiondown = "questiondown"_ostr;
constexpr OString tok_grave = "grave"_ostr;
constexpr OString tok_acute = "acute"_ostr;
constexpr OString tok_circumflex = "circumflex"_ostr;
constexpr OString tok_tilde = "tilde"_ostr;
constexpr OString tok_macron = "macron"_ostr;
constexpr OString tok_breve = "breve"_ostr;
constexpr OString tok_dotaccent = "dotaccent"_ostr;
constexpr OString tok_dieresis = "dieresis"_ostr;
constexpr OString tok_ring = "ring"_ostr;
constexpr OString tok_cedilla = "cedilla"_ostr;
constexpr OString tok_hungarumlaut = "hungarumlaut"_ostr;
constexpr OString tok_ogonek = "ogonek"_ostr;
constexpr OString tok_caron = "caron"_ostr;
constexpr OString tok_emdash = "emdash"_ostr;
constexpr OString tok_AE = "AE"_ostr;
constexpr OString tok_ordfeminine = "ordfeminine"_ostr;
constexpr OString tok_Lslash = "Lslash"_ostr;
constexpr OString tok_Oslash = "Oslash"_ostr;
constexpr OString tok_OE = "OE"_ostr;
constexpr OString tok_ordmasculine = "ordmasculine"_ostr;
constexpr OString tok_ae = "ae"_ostr;
constexpr OString tok_dotlessi = "dotlessi"_ostr;
constexpr OString tok_lslash = "lslash"_ostr;
constexpr OString tok_oslash = "oslash"_ostr;
constexpr OString tok_oe = "oe"_ostr;
constexpr OString tok_germandbls = "germandbls"_ostr;
constexpr OString tok_onesuperior = "onesuperior"_ostr;
constexpr OString tok_logicalnot = "logicalnot"_ostr;
constexpr OString tok_mu = "mu"_ostr;
constexpr OString tok_trademark = "trademark"_ostr;
constexpr OString tok_Eth = "Eth"_ostr;
constexpr OString tok_onehalf = "onehalf"_ostr;
constexpr OString tok_plusminus = "plusminus"_ostr;
constexpr OString tok_Thorn = "Thorn"_ostr;
constexpr OString tok_onequarter = "onequarter"_ostr;
constexpr OString tok_divide = "divide"_ostr;
constexpr OString tok_brokenbar = "brokenbar"_ostr;
constexpr OString tok_degree = "degree"_ostr;
constexpr OString tok_thorn = "thorn"_ostr;
constexpr OString tok_threequarters = "threequarters"_ostr;
constexpr OString tok_twosuperior = "twosuperior"_ostr;
constexpr OString tok_registered = "registered"_ostr;
constexpr OString tok_minus = "minus"_ostr;
constexpr OString tok_eth = "eth"_ostr;
constexpr OString tok_multiply = "multiply"_ostr;
constexpr OString tok_threesuperior = "threesuperior"_ostr;
constexpr OString tok_copyright = "copyright"_ostr;
constexpr OString tok_Aacute = "Aacute"_ostr;
constexpr OString tok_Acircumflex = "Acircumflex"_ostr;
constexpr OString tok_Adieresis = "Adieresis"_ostr;
constexpr OString tok_Agrave = "Agrave"_ostr;
constexpr OString tok_Aring = "Aring"_ostr;
constexpr OString tok_Atilde = "Atilde"_ostr;
constexpr OString tok_Ccedilla = "Ccedilla"_ostr;
constexpr OString tok_Eacute = "Eacute"_ostr;
constexpr OString tok_Ecircumflex = "Ecircumflex"_ostr;
constexpr OString tok_Edieresis = "Edieresis"_ostr;
constexpr OString tok_Egrave = "Egrave"_ostr;
constexpr OString tok_Iacute = "Iacute"_ostr;
constexpr OString tok_Icircumflex = "Icircumflex"_ostr;
constexpr OString tok_Idieresis = "Idieresis"_ostr;
constexpr OString tok_Igrave = "Igrave"_ostr;
constexpr OString tok_Ntilde = "Ntilde"_ostr;
constexpr OString tok_Oacute = "Oacute"_ostr;
constexpr OString tok_Ocircumflex = "Ocircumflex"_ostr;
constexpr OString tok_Odieresis = "Odieresis"_ostr;
constexpr OString tok_Ograve = "Ograve"_ostr;
constexpr OString tok_Otilde = "Otilde"_ostr;
constexpr OString tok_Scaron = "Scaron"_ostr;
constexpr OString tok_Uacute = "Uacute"_ostr;
constexpr OString tok_Ucircumflex = "Ucircumflex"_ostr;
constexpr OString tok_Udieresis = "Udieresis"_ostr;
constexpr OString tok_Ugrave = "Ugrave"_ostr;
constexpr OString tok_Yacute = "Yacute"_ostr;
constexpr OString tok_Ydieresis = "Ydieresis"_ostr;
constexpr OString tok_Zcaron = "Zcaron"_ostr;
constexpr OString tok_aacute = "aacute"_ostr;
constexpr OString tok_acircumflex = "acircumflex"_ostr;
constexpr OString tok_adieresis = "adieresis"_ostr;
constexpr OString tok_agrave = "agrave"_ostr;
constexpr OString tok_aring = "aring"_ostr;
constexpr OString tok_atilde = "atilde"_ostr;
constexpr OString tok_ccedilla = "ccedilla"_ostr;
constexpr OString tok_eacute = "eacute"_ostr;
constexpr OString tok_ecircumflex = "ecircumflex"_ostr;
constexpr OString tok_edieresis = "edieresis"_ostr;
constexpr OString tok_egrave = "egrave"_ostr;
constexpr OString tok_iacute = "iacute"_ostr;
constexpr OString tok_icircumflex = "icircumflex"_ostr;
constexpr OString tok_idieresis = "idieresis"_ostr;
constexpr OString tok_igrave = "igrave"_ostr;
constexpr OString tok_ntilde = "ntilde"_ostr;
constexpr OString tok_oacute = "oacute"_ostr;
constexpr OString tok_ocircumflex = "ocircumflex"_ostr;
constexpr OString tok_odieresis = "odieresis"_ostr;
constexpr OString tok_ograve = "ograve"_ostr;
constexpr OString tok_otilde = "otilde"_ostr;
constexpr OString tok_scaron = "scaron"_ostr;
constexpr OString tok_uacute = "uacute"_ostr;
constexpr OString tok_ucircumflex = "ucircumflex"_ostr;
constexpr OString tok_udieresis = "udieresis"_ostr;
constexpr OString tok_ugrave = "ugrave"_ostr;
constexpr OString tok_yacute = "yacute"_ostr;
constexpr OString tok_ydieresis = "ydieresis"_ostr;
constexpr OString tok_zcaron = "zcaron"_ostr;
constexpr OString tok_exclamsmall = "exclamsmall"_ostr;
constexpr OString tok_Hungarumlautsmall = "Hungarumlautsmall"_ostr;
constexpr OString tok_dollaroldstyle = "dollaroldstyle"_ostr;
constexpr OString tok_dollarsuperior = "dollarsuperior"_ostr;
constexpr OString tok_ampersandsmall = "ampersandsmall"_ostr;
constexpr OString tok_Acutesmall = "Acutesmall"_ostr;
constexpr OString tok_parenleftsuperior = "parenleftsuperior"_ostr;
constexpr OString tok_parenrightsuperior = "parenrightsuperior"_ostr;
constexpr OString tok_twodotenleader = "twodotenleader"_ostr;
constexpr OString tok_onedotenleader = "onedotenleader"_ostr;
constexpr OString tok_zerooldstyle = "zerooldstyle"_ostr;
constexpr OString tok_oneoldstyle = "oneoldstyle"_ostr;
constexpr OString tok_twooldstyle = "twooldstyle"_ostr;
constexpr OString tok_threeoldstyle = "threeoldstyle"_ostr;
constexpr OString tok_fouroldstyle = "fouroldstyle"_ostr;
constexpr OString tok_fiveoldstyle = "fiveoldstyle"_ostr;
constexpr OString tok_sixoldstyle = "sixoldstyle"_ostr;
constexpr OString tok_sevenoldstyle = "sevenoldstyle"_ostr;
constexpr OString tok_eightoldstyle = "eightoldstyle"_ostr;
constexpr OString tok_nineoldstile = "nineoldstile"_ostr;
constexpr OString tok_commasuperior = "commasuperior"_ostr;
constexpr OString tok_threequartersemdash = "threequartersemdash"_ostr;
constexpr OString tok_periodsuperior = "periodsuperior"_ostr;
constexpr OString tok_questionsmall = "questionsmall"_ostr;
constexpr OString tok_asuperior = "asuperior"_ostr;
constexpr OString tok_bsuperior = "bsuperior"_ostr;
constexpr OString tok_centsuperior = "centsuperior"_ostr;
constexpr OString tok_dsuperior = "dsuperior"_ostr;
constexpr OString tok_esuperior = "esuperior"_ostr;
constexpr OString tok_isuperior = "isuperior"_ostr;
constexpr OString tok_lsuperior = "lsuperior"_ostr;
constexpr OString tok_msuperior = "msuperior"_ostr;
constexpr OString tok_nsuperior = "nsuperior"_ostr;
constexpr OString tok_osuperior = "osuperior"_ostr;
constexpr OString tok_rsuperior = "rsuperior"_ostr;
constexpr OString tok_ssuperior = "ssuperior"_ostr;
constexpr OString tok_tsuperior = "tsuperior"_ostr;
constexpr OString tok_ff = "ff"_ostr;
constexpr OString tok_ffi = "ffi"_ostr;
constexpr OString tok_ffl = "ffl"_ostr;
constexpr OString tok_parenleftinferior = "parenleftinferior"_ostr;
constexpr OString tok_parenrightinferior = "parenrightinferior"_ostr;
constexpr OString tok_Circumflexsmall = "Circumflexsmall"_ostr;
constexpr OString tok_hyphensuperior = "hyphensuperior"_ostr;
constexpr OString tok_Gravesmall = "Gravesmall"_ostr;
constexpr OString tok_Asmall = "Asmall"_ostr;
constexpr OString tok_Bsmall = "Bsmall"_ostr;
constexpr OString tok_Csmall = "Csmall"_ostr;
constexpr OString tok_Dsmall = "Dsmall"_ostr;
constexpr OString tok_Esmall = "Esmall"_ostr;
constexpr OString tok_Fsmall = "Fsmall"_ostr;
constexpr OString tok_Gsmall = "Gsmall"_ostr;
constexpr OString tok_Hsmall = "Hsmall"_ostr;
constexpr OString tok_Ismall = "Ismall"_ostr;
constexpr OString tok_Jsmall = "Jsmall"_ostr;
constexpr OString tok_Ksmall = "Ksmall"_ostr;
constexpr OString tok_Lsmall = "Lsmall"_ostr;
constexpr OString tok_Msmall = "Msmall"_ostr;
constexpr OString tok_Nsmall = "Nsmall"_ostr;
constexpr OString tok_Osmall = "Osmall"_ostr;
constexpr OString tok_Psmall = "Psmall"_ostr;
constexpr OString tok_Qsmall = "Qsmall"_ostr;
constexpr OString tok_Rsmall = "Rsmall"_ostr;
constexpr OString tok_Ssmall = "Ssmall"_ostr;
constexpr OString tok_Tsmall = "Tsmall"_ostr;
constexpr OString tok_Usmall = "Usmall"_ostr;
constexpr OString tok_Vsmall = "Vsmall"_ostr;
constexpr OString tok_Wsmall = "Wsmall"_ostr;
constexpr OString tok_Xsmall = "Xsmall"_ostr;
constexpr OString tok_Ysmall = "Ysmall"_ostr;
constexpr OString tok_Zsmall = "Zsmall"_ostr;
constexpr OString tok_colonmonetary = "colonmonetary"_ostr;
constexpr OString tok_onefitted = "onefitted"_ostr;
constexpr OString tok_rupia = "rupia"_ostr;
constexpr OString tok_Tildesmall = "Tildesmall"_ostr;
constexpr OString tok_exclamdownsmall = "exclamdownsmall"_ostr;
constexpr OString tok_centoldstyle = "centoldstyle"_ostr;
constexpr OString tok_Lslashsmall = "Lslashsmall"_ostr;
constexpr OString tok_Scaronsmall = "Scaronsmall"_ostr;
constexpr OString tok_Zcaronsmall = "Zcaronsmall"_ostr;
constexpr OString tok_Dieresissmall = "Dieresissmall"_ostr;
constexpr OString tok_Brevesmall = "Brevesmall"_ostr;
constexpr OString tok_Caronsmall = "Caronsmall"_ostr;
constexpr OString tok_Dotaccentsmall = "Dotaccentsmall"_ostr;
constexpr OString tok_Macronsmall = "Macronsmall"_ostr;
constexpr OString tok_figuredash = "figuredash"_ostr;
constexpr OString tok_hypheninferior = "hypheninferior"_ostr;
constexpr OString tok_Ogoneksmall = "Ogoneksmall"_ostr;
constexpr OString tok_Ringsmall = "Ringsmall"_ostr;
constexpr OString tok_Cedillasmall = "Cedillasmall"_ostr;
constexpr OString tok_questiondownsmall = "questiondownsmall"_ostr;
constexpr OString tok_oneeight = "oneeight"_ostr;
constexpr OString tok_threeeights = "threeeights"_ostr;
constexpr OString tok_fiveeights = "fiveeights"_ostr;
constexpr OString tok_seveneights = "seveneights"_ostr;
constexpr OString tok_onethird = "onethird"_ostr;
constexpr OString tok_twothirds = "twothirds"_ostr;
constexpr OString tok_zerosuperior = "zerosuperior"_ostr;
constexpr OString tok_foursuperior = "foursuperior"_ostr;
constexpr OString tok_fivesuperior = "fivesuperior"_ostr;
constexpr OString tok_sixsuperior = "sixsuperior"_ostr;
constexpr OString tok_sevensuperior = "sevensuperior"_ostr;
constexpr OString tok_eightsuperior = "eightsuperior"_ostr;
constexpr OString tok_ninesuperior = "ninesuperior"_ostr;
constexpr OString tok_zeroinferior = "zeroinferior"_ostr;
constexpr OString tok_oneinferior = "oneinferior"_ostr;
constexpr OString tok_twoinferior = "twoinferior"_ostr;
constexpr OString tok_threeinferior = "threeinferior"_ostr;
constexpr OString tok_fourinferior = "fourinferior"_ostr;
constexpr OString tok_fiveinferior = "fiveinferior"_ostr;
constexpr OString tok_sixinferior = "sixinferior"_ostr;
constexpr OString tok_seveninferior = "seveninferior"_ostr;
constexpr OString tok_eightinferior = "eightinferior"_ostr;
constexpr OString tok_nineinferior = "nineinferior"_ostr;
constexpr OString tok_centinferior = "centinferior"_ostr;
constexpr OString tok_dollarinferior = "dollarinferior"_ostr;
constexpr OString tok_periodinferior = "periodinferior"_ostr;
constexpr OString tok_commainferior = "commainferior"_ostr;
constexpr OString tok_Agravesmall = "Agravesmall"_ostr;
constexpr OString tok_Aacutesmall = "Aacutesmall"_ostr;
constexpr OString tok_Acircumflexsmall = "Acircumflexsmall"_ostr;
constexpr OString tok_Atildesmall = "Atildesmall"_ostr;
constexpr OString tok_Adieresissmall = "Adieresissmall"_ostr;
constexpr OString tok_Aringsmall = "Aringsmall"_ostr;
constexpr OString tok_AEsmall = "AEsmall"_ostr;
constexpr OString tok_Ccedillasmall = "Ccedillasmall"_ostr;
constexpr OString tok_Egravesmall = "Egravesmall"_ostr;
constexpr OString tok_Eacutesmall = "Eacutesmall"_ostr;
constexpr OString tok_Ecircumflexsmall = "Ecircumflexsmall"_ostr;
constexpr OString tok_Edieresissmall = "Edieresissmall"_ostr;
constexpr OString tok_Igravesmall = "Igravesmall"_ostr;
constexpr OString tok_Iacutesmall = "Iacutesmall"_ostr;
constexpr OString tok_Icircumflexsmall = "Icircumflexsmall"_ostr;
constexpr OString tok_Idieresissmall = "Idieresissmall"_ostr;
constexpr OString tok_Ethsmall = "Ethsmall"_ostr;
constexpr OString tok_Ntildesmall = "Ntildesmall"_ostr;
constexpr OString tok_Ogravesmall = "Ogravesmall"_ostr;
constexpr OString tok_Oacutesmall = "Oacutesmall"_ostr;
constexpr OString tok_Ocircumflexsmall = "Ocircumflexsmall"_ostr;
constexpr OString tok_Otildesmall = "Otildesmall"_ostr;
constexpr OString tok_Odieressissmall = "Odieressissmall"_ostr;
constexpr OString tok_OEsmall = "OEsmall"_ostr;
constexpr OString tok_Oslashsmall = "Oslashsmall"_ostr;
constexpr OString tok_Ugravesmall = "Ugravesmall"_ostr;
constexpr OString tok_Uacutesmall = "Uacutesmall"_ostr;
constexpr OString tok_Ucircumflexsmall = "Ucircumflexsmall"_ostr;
constexpr OString tok_Udieresissmall = "Udieresissmall"_ostr;
constexpr OString tok_Yacutesmall = "Yacutesmall"_ostr;
constexpr OString tok_Thornsmall = "Thornsmall"_ostr;
constexpr OString tok_Ydieresissmall = "Ydieresissmall"_ostr;
constexpr OString tok_001_000 = "001.000"_ostr;
constexpr OString tok_001_001 = "001.001"_ostr;
constexpr OString tok_001_002 = "001.002"_ostr;
constexpr OString tok_001_003 = "001.003"_ostr;
constexpr OString tok_Black = "Black"_ostr;
constexpr OString tok_Bold = "Bold"_ostr;
constexpr OString tok_Book = "Book"_ostr;
constexpr OString tok_Light = "Light"_ostr;
constexpr OString tok_Medium = "Medium"_ostr;
constexpr OString tok_Regular = "Regular"_ostr;
constexpr OString tok_Roman = "Roman"_ostr;
constexpr OString tok_Semibold = "Semibold"_ostr;
constexpr OString pStringIds[] = {
/*0*/ tok_notdef,
tok_space,
tok_exclam,
tok_quotedbl,
tok_numbersign,
tok_dollar,
tok_percent,
tok_ampersand,
tok_quoteright,
tok_parenleft,
tok_parenright,
tok_asterisk,
tok_plus,
tok_comma,
tok_hyphen,
tok_period,
/*16*/ tok_slash,
tok_zero,
tok_one,
tok_two,
tok_three,
tok_four,
tok_five,
tok_six,
tok_seven,
tok_eight,
tok_nine,
tok_colon,
tok_semicolon,
tok_less,
tok_equal,
tok_greater,
/*32*/ tok_question,
tok_at,
tok_A,
tok_B,
tok_C,
tok_D,
tok_E,
tok_F,
tok_G,
tok_H,
tok_I,
tok_J,
tok_K,
tok_L,
tok_M,
tok_N,
/*48*/ tok_O,
tok_P,
tok_Q,
tok_R,
tok_S,
tok_T,
tok_U,
tok_V,
tok_W,
tok_X,
tok_Y,
tok_Z,
tok_bracketleft,
tok_backslash,
tok_bracketright,
tok_asciicircum,
/*64*/ tok_underscore,
tok_quoteleft,
tok_a,
tok_b,
tok_c,
tok_d,
tok_e,
tok_f,
tok_g,
tok_h,
tok_i,
tok_j,
tok_k,
tok_l,
tok_m,
tok_n,
/*80*/ tok_o,
tok_p,
tok_q,
tok_r,
tok_s,
tok_t,
tok_u,
tok_v,
tok_w,
tok_x,
tok_y,
tok_z,
tok_braceleft,
tok_bar,
tok_braceright,
tok_asciitilde,
/*96*/ tok_exclamdown,
tok_cent,
tok_sterlin,
tok_fraction,
tok_yen,
tok_florin,
tok_section,
tok_currency,
tok_quotesingle,
tok_quotedblleft,
tok_guillemotleft,
tok_guilsinglleft,
tok_guilsinglright,
tok_fi,
tok_fl,
tok_endash,
/*112*/ tok_dagger,
tok_daggerdbl,
tok_periodcentered,
tok_paragraph,
tok_bullet,
tok_quotesinglbase,
tok_quotedblbase,
tok_quotedblright,
tok_guillemotright,
tok_ellipsis,
tok_perthousand,
tok_questiondown,
tok_grave,
tok_acute,
tok_circumflex,
tok_tilde,
/*128*/ tok_macron,
tok_breve,
tok_dotaccent,
tok_dieresis,
tok_ring,
tok_cedilla,
tok_hungarumlaut,
tok_ogonek,
tok_caron,
tok_emdash,
tok_AE,
tok_ordfeminine,
tok_Lslash,
tok_Oslash,
tok_OE,
tok_ordmasculine,
/*144*/ tok_ae,
tok_dotlessi,
tok_lslash,
tok_oslash,
tok_oe,
tok_germandbls,
tok_onesuperior,
tok_logicalnot,
tok_mu,
tok_trademark,
tok_Eth,
tok_onehalf,
tok_plusminus,
tok_Thorn,
tok_onequarter,
tok_divide,
/*160*/ tok_brokenbar,
tok_degree,
tok_thorn,
tok_threequarters,
tok_twosuperior,
tok_registered,
tok_minus,
tok_eth,
tok_multiply,
tok_threesuperior,
tok_copyright,
tok_Aacute,
tok_Acircumflex,
tok_Adieresis,
tok_Agrave,
tok_Aring,
/*176*/ tok_Atilde,
tok_Ccedilla,
tok_Eacute,
tok_Ecircumflex,
tok_Edieresis,
tok_Egrave,
tok_Iacute,
tok_Icircumflex,
tok_Idieresis,
tok_Igrave,
tok_Ntilde,
tok_Oacute,
tok_Ocircumflex,
tok_Odieresis,
tok_Ograve,
tok_Otilde,
/*192*/ tok_Scaron,
tok_Uacute,
tok_Ucircumflex,
tok_Udieresis,
tok_Ugrave,
tok_Yacute,
tok_Ydieresis,
tok_Zcaron,
tok_aacute,
tok_acircumflex,
tok_adieresis,
tok_agrave,
tok_aring,
tok_atilde,
tok_ccedilla,
tok_eacute,
/*208*/ tok_ecircumflex,
tok_edieresis,
tok_egrave,
tok_iacute,
tok_icircumflex,
tok_idieresis,
tok_igrave,
tok_ntilde,
tok_oacute,
tok_ocircumflex,
tok_odieresis,
tok_ograve,
tok_otilde,
tok_scaron,
tok_uacute,
tok_ucircumflex,
/*224*/ tok_udieresis,
tok_ugrave,
tok_yacute,
tok_ydieresis,
tok_zcaron,
tok_exclamsmall,
tok_Hungarumlautsmall,
tok_dollaroldstyle,
tok_dollarsuperior,
tok_ampersandsmall,
tok_Acutesmall,
tok_parenleftsuperior,
tok_parenrightsuperior,
tok_twodotenleader,
tok_onedotenleader,
tok_zerooldstyle,
/*240*/ tok_oneoldstyle,
tok_twooldstyle,
tok_threeoldstyle,
tok_fouroldstyle,
tok_fiveoldstyle,
tok_sixoldstyle,
tok_sevenoldstyle,
tok_eightoldstyle,
tok_nineoldstile,
tok_commasuperior,
tok_threequartersemdash,
tok_periodsuperior,
tok_questionsmall,
tok_asuperior,
tok_bsuperior,
tok_centsuperior,
/*256*/ tok_dsuperior,
tok_esuperior,
tok_isuperior,
tok_lsuperior,
tok_msuperior,
tok_nsuperior,
tok_osuperior,
tok_rsuperior,
tok_ssuperior,
tok_tsuperior,
tok_ff,
tok_ffi,
tok_ffl,
tok_parenleftinferior,
tok_parenrightinferior,
tok_Circumflexsmall,
/*272*/ tok_hyphensuperior,
tok_Gravesmall,
tok_Asmall,
tok_Bsmall,
tok_Csmall,
tok_Dsmall,
tok_Esmall,
tok_Fsmall,
tok_Gsmall,
tok_Hsmall,
tok_Ismall,
tok_Jsmall,
tok_Ksmall,
tok_Lsmall,
tok_Msmall,
tok_Nsmall,
/*288*/ tok_Osmall,
tok_Psmall,
tok_Qsmall,
tok_Rsmall,
tok_Ssmall,
tok_Tsmall,
tok_Usmall,
tok_Vsmall,
tok_Wsmall,
tok_Xsmall,
tok_Ysmall,
tok_Zsmall,
tok_colonmonetary,
tok_onefitted,
tok_rupia,
tok_Tildesmall,
/*304*/ tok_exclamdownsmall,
tok_centoldstyle,
tok_Lslashsmall,
tok_Scaronsmall,
tok_Zcaronsmall,
tok_Dieresissmall,
tok_Brevesmall,
tok_Caronsmall,
tok_Dotaccentsmall,
tok_Macronsmall,
tok_figuredash,
tok_hypheninferior,
tok_Ogoneksmall,
tok_Ringsmall,
tok_Cedillasmall,
tok_questiondownsmall,
/*320*/ tok_oneeight,
tok_threeeights,
tok_fiveeights,
tok_seveneights,
tok_onethird,
tok_twothirds,
tok_zerosuperior,
tok_foursuperior,
tok_fivesuperior,
tok_sixsuperior,
tok_sevensuperior,
tok_eightsuperior,
tok_ninesuperior,
tok_zeroinferior,
tok_oneinferior,
tok_twoinferior,
/*336*/ tok_threeinferior,
tok_fourinferior,
tok_fiveinferior,
tok_sixinferior,
tok_seveninferior,
tok_eightinferior,
tok_nineinferior,
tok_centinferior,
tok_dollarinferior,
tok_periodinferior,
tok_commainferior,
tok_Agravesmall,
tok_Aacutesmall,
tok_Acircumflexsmall,
tok_Atildesmall,
tok_Adieresissmall,
/*352*/ tok_Aringsmall,
tok_AEsmall,
tok_Ccedillasmall,
tok_Egravesmall,
tok_Eacutesmall,
tok_Ecircumflexsmall,
tok_Edieresissmall,
tok_Igravesmall,
tok_Iacutesmall,
tok_Icircumflexsmall,
tok_Idieresissmall,
tok_Ethsmall,
tok_Ntildesmall,
tok_Ogravesmall,
tok_Oacutesmall,
tok_Ocircumflexsmall,
/*368*/ tok_Otildesmall,
tok_Odieressissmall,
tok_OEsmall,
tok_Oslashsmall,
tok_Ugravesmall,
tok_Uacutesmall,
tok_Ucircumflexsmall,
tok_Udieresissmall,
tok_Yacutesmall,
tok_Thornsmall,
tok_Ydieresissmall,
tok_001_000,
tok_001_001,
tok_001_002,
tok_001_003,
tok_Black,
/*384*/ tok_Bold,
tok_Book,
tok_Light,
tok_Medium,
tok_Regular,
tok_Roman,
tok_Semibold
};
// TOP DICT keywords (also covers PRIV DICT keywords)
const char* const pDictOps[] = { "sVersion",
"sNotice",
"sFullName",
"sFamilyName",
"sWeight",
"aFontBBox",
"dBlueValues",
"dOtherBlues",
"dFamilyBlues",
"dFamilyOtherBlues",
"nStdHW",
"nStdVW",
"xESC",
"nUniqueID",
"aXUID",
"nCharset",
"nEncoding",
"nCharStrings",
"PPrivate",
"nSubrs",
"nDefaultWidthX",
"nNominalWidthX",
nullptr,
nullptr,
nullptr,
nullptr,
nullptr,
nullptr,
"shortint",
"longint",
"BCD",
nullptr };
// TOP DICT escapes (also covers PRIV DICT escapes)
const char* const pDictEscs[] = { "sCopyright",
"bIsFixedPitch",
"nItalicAngle",
"nUnderlinePosition",
"nUnderlineThickness",
"nPaintType",
"tCharstringType",
"aFontMatrix",
"nStrokeWidth",
"nBlueScale",
"nBlueShift",
"nBlueFuzz",
"dStemSnapH",
"dStemSnapV",
"bForceBold",
nullptr,
nullptr,
"nLanguageGroup",
"nExpansionFactor",
"nInitialRandomSeed",
"nSyntheticBase",
"sPostScript",
"sBaseFontName",
"dBaseFontBlend",
nullptr,
nullptr,
nullptr,
nullptr,
nullptr,
nullptr,
"rROS",
"nCIDFontVersion",
"nCIDFontRevision",
"nCIDFontType",
"nCIDCount",
"nUIDBase",
"nFDArray",
"nFDSelect",
"sFontName" };
const char* const pStandardEncoding[] = { ".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
"space",
"exclam",
"quotedbl",
"numbersign",
"dollar",
"percent",
"ampersand",
"quoteright",
"parenleft",
"parenright",
"asterisk",
"plus",
"comma",
"hyphen",
"period",
"slash",
"zero",
"one",
"two",
"three",
"four",
"five",
"six",
"seven",
"eight",
"nine",
"colon",
"semicolon",
"less",
"equal",
"greater",
"question",
"at",
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z",
"bracketleft",
"backslash",
"bracketright",
"asciicircum",
"underscore",
"quoteleft",
"a",
"b",
"c",
"d",
"e",
"f",
"g",
"h",
"i",
"j",
"k",
"l",
"m",
"n",
"o",
"p",
"q",
"r",
"s",
"t",
"u",
"v",
"w",
"x",
"y",
"z",
"braceleft",
"bar",
"braceright",
"asciitilde",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
"exclamdown",
"cent",
"sterling",
"fraction",
"yen",
"florin",
"section",
"currency",
"quotesingle",
"quotedblleft",
"guillemotleft",
"guilsinglleft",
"guilsinglright",
"fi",
"fl",
".notdef",
"endash",
"dagger",
"daggerdbl",
"periodcentered",
".notdef",
"paragraph",
"bullet",
"quotesinglbase",
"quotedblbase",
"quotedblright",
"guillemotright",
"ellipsis",
"perthousand",
".notdef",
"questiondown",
".notdef",
"grave",
"acute",
"circumflex",
"tilde",
"macron",
"breve",
"dotaccent",
"dieresis",
".notdef",
"ring",
"cedilla",
".notdef",
"hungarumlaut",
"ogonek",
"caron",
"emdash",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
"AE",
".notdef",
"ordfeminine",
".notdef",
".notdef",
".notdef",
".notdef",
"Lslash",
"Oslash",
"OE",
"ordmasculine",
".notdef",
".notdef",
".notdef",
".notdef",
".notdef",
"ae",
".notdef",
".notdef",
".notdef",
"dotlessi",
".notdef",
".notdef",
"lslash",
"oslash",
"oe",
"germandbls",
".notdef",
".notdef",
".notdef",
".notdef" };
namespace
{
namespace TYPE1OP
{
enum OPS
{
HSTEM = 1,
VSTEM = 3,
VMOVETO = 4,
RLINETO = 5,
HLINETO = 6,
VLINETO = 7,
RCURVETO = 8,
CLOSEPATH = 9,
CALLSUBR = 10,
RETURN = 11,
T1ESC = 12,
HSBW = 13,
ENDCHAR = 14,
RMOVETO = 21,
HMOVETO = 22,
VHCURVETO = 30,
HVCURVETO = 31
};
enum ESCS
{
DOTSECTION = 0,
VSTEM3 = 1,
HSTEM3 = 2,
SEAC = 6,
SBW = 7,
ABS = 9,
ADD = 10,
SUB = 11,
DIV = 12,
CALLOTHERSUBR = 16,
POP = 17,
SETCURRENTPOINT = 33
};
}
namespace TYPE2OP
{
enum OPS
{
HSTEM = 1,
VSTEM = 3,
VMOVETO = 4,
RLINETO = 5,
HLINETO = 6,
VLINETO = 7,
RCURVETO = 8,
CALLSUBR = 10,
RETURN = 11,
T2ESC = 12,
ENDCHAR = 14,
HSTEMHM = 18,
HINTMASK = 19,
CNTRMASK = 20,
RMOVETO = 21,
HMOVETO = 22,
VSTEMHM = 23,
RCURVELINE = 24,
RLINECURVE = 25,
VVCURVETO = 26,
HHCURVETO = 27,
SHORTINT = 28,
CALLGSUBR = 29,
VHCURVETO = 30,
HVCURVETO = 31
};
enum ESCS
{
AND = 3,
OR = 4,
NOT = 5,
ABS = 9,
ADD = 10,
SUB = 11,
DIV = 12,
NEG = 14,
EQ = 15,
DROP = 18,
PUT = 20,
GET = 21,
IFELSE = 22,
RANDOM = 23,
MUL = 24,
SQRT = 26,
DUP = 27,
EXCH = 28,
INDEX = 29,
ROLL = 30,
HFLEX = 34,
FLEX = 35,
HFLEX1 = 36,
FLEX1 = 37
};
}
struct CffGlobal
{
explicit CffGlobal();
int mnNameIdxBase;
int mnStringIdxBase;
bool mbCIDFont;
int mnCharStrBase;
int mnCharStrCount;
int mnCharsetBase;
int mnGlobalSubrBase;
int mnGlobalSubrCount;
int mnGlobalSubrBias;
int mnFDSelectBase;
int mnFontDictBase;
int mnFDAryCount;
std::vector<ValType> maFontMatrix;
};
struct CffLocal
{
explicit CffLocal();
int mnPrivDictBase;
int mnPrivDictSize;
int mnLocalSubrOffs;
int mnLocalSubrBase;
int mnLocalSubrBias;
ValType maNominalWidth;
ValType maDefaultWidth;
// ATM hinting related values
ValType maStemStdHW;
ValType maStemStdVW;
std::vector<ValType> maStemSnapH;
std::vector<ValType> maStemSnapV;
std::vector<ValType> maBlueValues;
std::vector<ValType> maOtherBlues;
std::vector<ValType> maFamilyBlues;
std::vector<ValType> maFamilyOtherBlues;
RealType mfBlueScale;
RealType mfBlueShift;
RealType mfBlueFuzz;
RealType mfExpFactor;
int mnLangGroup;
bool mbForceBold;
};
const int MAX_T1OPS_SIZE = 81920; // TODO: use dynamic value
struct CharString
{
int nLen;
U8 aOps[MAX_T1OPS_SIZE];
int nCffGlyphId;
};
class CffContext : private CffGlobal
{
public:
static const int NMAXSTACK = 48; // see CFF.appendixB
static const int NMAXHINTS = 2 * 96; // see CFF.appendixB
static const int NMAXTRANS = 32; // see CFF.appendixB
explicit CffContext(const U8* pBasePtr, int nBaseLen);
bool initialCffRead();
bool emitAsType1(class Type1Emitter&, FontSubsetInfo&);
private:
bool convertCharStrings(std::vector<CharString>& rCharStrings, int nGlyphCount,
const sal_GlyphId* pGlyphIds = nullptr);
int convert2Type1Ops(CffLocal*, const U8* pType2Ops, int nType2Len, U8* pType1Ops);
bool convertOneTypeOp();
bool convertOneTypeEsc();
bool callType2Subr(bool bGlobal, int nSubrNumber);
sal_Int32 getReadOfs() const { return static_cast<sal_Int32>(mpReadPtr - mpBasePtr); }
const U8* mpBasePtr;
const U8* mpBaseEnd;
const U8* mpReadPtr;
const U8* mpReadEnd;
U8* mpWritePtr;
bool mbNeedClose;
bool mbIgnoreHints;
sal_Int32 mnCntrMask;
int seekIndexData(int nIndexBase, int nDataIndex);
bool seekIndexEnd(int nIndexBase);
CffLocal maCffLocal[256];
CffLocal* mpCffLocal;
void readDictOp();
RealType readRealVal();
OString getString(int nStringID);
int getFDSelect(int nGlyphIndex) const;
int getGlyphSID(int nGlyphIndex) const;
OString getGlyphName(int nGlyphIndex);
bool getBaseAccent(ValType aBase, ValType aAccent, int* nBase, int* nAccent);
void read2push();
void writeType1Val(ValType);
void writeTypeOp(int nTypeOp);
void writeTypeEsc(int nTypeOp);
void writeCurveTo(int nStackPos, int nIX1, int nIY1, int nIX2, int nIY2, int nIX3, int nIY3);
void pop2MultiWrite(int nArgsPerTypo, int nTypeOp, int nTypeXor = 0);
void popAll2Write(int nTypeOp);
public: // TODO: is public really needed?
// accessing the value stack
// TODO: add more checks
void push(ValType nVal) { mnValStack[mnStackIdx++] = nVal; }
ValType popVal() { return ((mnStackIdx > 0) ? mnValStack[--mnStackIdx] : 0); }
ValType getVal(int nIndex) const { return mnValStack[nIndex]; }
int popInt();
int size() const { return mnStackIdx; }
void clear() { mnStackIdx = 0; }
// accessing the charstring hints
bool addHints(bool bVerticalHints);
// accessing other charstring specifics
void updateWidth(bool bUseFirstVal);
private:
// typeop execution context
int mnStackIdx;
ValType mnValStack[NMAXSTACK + 4];
ValType mnTransVals[NMAXTRANS];
int mnHintSize;
int mnHorzHintSize;
ValType mnHintStack[NMAXHINTS];
ValType maCharWidth;
bool mbDoSeac;
std::vector<sal_GlyphId> maExtraGlyphIds;
};
}
CffContext::CffContext(const U8* pBasePtr, int nBaseLen)
: mpBasePtr(pBasePtr)
, mpBaseEnd(pBasePtr + nBaseLen)
, mpReadPtr(nullptr)
, mpReadEnd(nullptr)
, mpWritePtr(nullptr)
, mbNeedClose(false)
, mbIgnoreHints(false)
, mnCntrMask(0)
, mnStackIdx(0)
, mnValStack{}
, mnTransVals{}
, mnHintSize(0)
, mnHorzHintSize(0)
, mnHintStack{}
, maCharWidth(-1)
, mbDoSeac(true)
{
// setCharStringType( 1);
// TODO: new CffLocal[ mnFDAryCount];
mpCffLocal = &maCffLocal[0];
}
inline int CffContext::popInt()
{
const ValType aVal = popVal();
const int nInt = static_cast<int>(aVal);
assert(nInt == aVal);
return nInt;
}
inline void CffContext::updateWidth(bool bUseFirstVal)
{
// the first value is not a hint but the charwidth
if (maCharWidth > 0)
return;
if (bUseFirstVal)
{
maCharWidth = mpCffLocal->maNominalWidth + mnValStack[0];
// remove bottom stack entry
--mnStackIdx;
for (int i = 0; i < mnStackIdx; ++i)
mnValStack[i] = mnValStack[i + 1];
}
else
{
maCharWidth = mpCffLocal->maDefaultWidth;
}
}
bool CffContext::addHints(bool bVerticalHints)
{
// the first charstring value may a charwidth instead of a charwidth
updateWidth((mnStackIdx & 1) != 0);
// return early (e.g. no implicit hints for hintmask)
if (!mnStackIdx)
return true;
// copy the remaining values to the hint arrays
if (mnStackIdx & 1)
--mnStackIdx; //#######
if ((mnHintSize + mnStackIdx) > 2 * NMAXHINTS)
return false;
ValType nHintOfs = 0;
for (int i = 0; i < mnStackIdx; ++i)
{
nHintOfs += mnValStack[i];
mnHintStack[mnHintSize++] = nHintOfs;
}
if (!bVerticalHints)
mnHorzHintSize = mnHintSize;
// clear all values from the stack
mnStackIdx = 0;
return true;
}
void CffContext::readDictOp()
{
const U8 c = *mpReadPtr;
if (c <= 21)
{
int nOpId = *(mpReadPtr++);
const char* pCmdName = nullptr;
if (nOpId != 12)
pCmdName = pDictOps[nOpId];
else
{
const U8 nExtId = *(mpReadPtr++);
if (nExtId < 39)
pCmdName = pDictEscs[nExtId];
nOpId = 900 + nExtId;
}
if (!pCmdName) // skip reserved operators
return;
//TODO: if( nStackIdx > 0)
int nInt = 0;
switch (*pCmdName)
{
default:
SAL_WARN("vcl.fonts.cff", "unsupported DictOp.type='" << *pCmdName << "'.");
break;
case 'b': // bool
nInt = popInt();
switch (nOpId)
{
case 915:
mpCffLocal->mbForceBold = nInt;
break; // "ForceBold"
default:
break; // TODO: handle more boolean dictops?
}
break;
case 'n':
{ // dict-op number
ValType nVal = popVal();
nInt = static_cast<int>(nVal);
switch (nOpId)
{
case 10:
mpCffLocal->maStemStdHW = nVal;
break; // "StdHW"
case 11:
mpCffLocal->maStemStdVW = nVal;
break; // "StdVW"
case 15:
mnCharsetBase = nInt;
break; // "charset"
case 16:
break; // "nEncoding"
case 17:
mnCharStrBase = nInt;
break; // "nCharStrings"
case 19:
mpCffLocal->mnLocalSubrOffs = nInt;
break; // "nSubrs"
case 20:
mpCffLocal->maDefaultWidth = nVal;
break; // "defaultWidthX"
case 21:
mpCffLocal->maNominalWidth = nVal;
break; // "nominalWidthX"
case 909:
mpCffLocal->mfBlueScale = nVal;
break; // "BlueScale"
case 910:
mpCffLocal->mfBlueShift = nVal;
break; // "BlueShift"
case 911:
mpCffLocal->mfBlueFuzz = nVal;
break; // "BlueFuzz"
case 912:
mpCffLocal->mfExpFactor = nVal;
break; // "ExpansionFactor"
case 917:
mpCffLocal->mnLangGroup = nInt;
break; // "LanguageGroup"
case 936:
mnFontDictBase = nInt;
break; // "nFDArray"
case 937:
mnFDSelectBase = nInt;
break; // "nFDSelect"
default:
break; // TODO: handle more numeric dictops?
}
}
break;
case 'a':
{ // array
switch (nOpId)
{
case 5:
break; // "FontBBox"
case 907:
maFontMatrix.clear();
break; // "FontMatrix"
default:
break; // TODO: reset other arrays?
}
for (int i = 0; i < size(); ++i)
{
ValType nVal = getVal(i);
switch (nOpId)
{
case 5:
break; // "FontBBox"
case 907:
maFontMatrix.push_back(nVal);
break; // "FontMatrix"
default:
break; // TODO: handle more array dictops?
}
}
clear();
}
break;
case 'd':
{ // delta array
ValType nVal = 0;
for (int i = 0; i < size(); ++i)
{
nVal += getVal(i);
switch (nOpId)
{
case 6:
mpCffLocal->maBlueValues.push_back(nVal);
break; // "BlueValues"
case 7:
mpCffLocal->maOtherBlues.push_back(nVal);
break; // "OtherBlues"
case 8:
mpCffLocal->maFamilyBlues.push_back(nVal);
break; // "FamilyBlues"
case 9:
mpCffLocal->maFamilyOtherBlues.push_back(nVal);
break; // "FamilyOtherBlues"
case 912:
mpCffLocal->maStemSnapH.push_back(nVal);
break; // "StemSnapH"
case 913:
mpCffLocal->maStemSnapV.push_back(nVal);
break; // "StemSnapV"
default:
break; // TODO: handle more delta-array dictops?
}
}
clear();
}
break;
case 's': // stringid (SID)
nInt = popInt();
switch (nOpId)
{
case 2:
break; // "FullName"
case 3:
break; // "FamilyName"
case 938:
break; // "FontName"
default:
break; // TODO: handle more string dictops?
}
break;
case 'P': // private dict
mpCffLocal->mnPrivDictBase = popInt();
mpCffLocal->mnPrivDictSize = popInt();
break;
case 'r':
{ // ROS operands
popInt(); // TODO: use sid1
popInt(); // TODO: use sid2
popVal();
mbCIDFont = true;
}
break;
case 't': // CharstringType
popInt();
break;
}
}
else if ((c >= 32) || (c == 28))
{
// --mpReadPtr;
read2push();
}
else if (c == 29)
{ // longint
++mpReadPtr; // skip 29
sal_Int32 nS32 = mpReadPtr[0] << 24;
nS32 += mpReadPtr[1] << 16;
nS32 += mpReadPtr[2] << 8;
nS32 += mpReadPtr[3] << 0;
mpReadPtr += 4;
ValType nVal = static_cast<ValType>(nS32);
push(nVal);
}
else if (c == 30)
{ // real number
++mpReadPtr; // skip 30
const RealType fReal = readRealVal();
// push value onto stack
ValType nVal = fReal;
push(nVal);
}
else
{
// bytes 22-27, 31 and 255 are reserved in CFF DICT encoding
// (Adobe Technical Note #5176, section 4 "DICT Data")
// https://adobe-type-tools.github.io/font-tech-notes/pdfs/5176.CFF.pdf
// skip to avoid infinite loop
SAL_WARN("vcl.fonts.cff", "undefined CFF DICT byte: " << int(c));
++mpReadPtr;
}
}
void CffContext::read2push()
{
ValType aVal = 0;
const U8*& p = mpReadPtr;
const U8 c = *p;
if (c == 28)
{
sal_Int16 nS16 = (p[1] << 8) + p[2];
aVal = nS16;
p += 3;
}
else if (c <= 246)
{ // -107..+107
aVal = static_cast<ValType>(p[0] - 139);
p += 1;
}
else if (c <= 250)
{ // +108..+1131
aVal = static_cast<ValType>(((p[0] << 8) + p[1]) - 63124);
p += 2;
}
else if (c <= 254)
{ // -108..-1131
aVal = static_cast<ValType>(64148 - ((p[0] << 8) + p[1]));
p += 2;
}
else /*if( c == 255)*/
{ // Fixed16.16
int nS32 = (p[1] << 24) + (p[2] << 16) + (p[3] << 8) + p[4];
if ((sizeof(nS32) != 2) && (nS32 & (1U << 31)))
nS32 |= (~0U) << 31; // assuming 2s complement
aVal = static_cast<ValType>(nS32 * (1.0 / 0x10000));
p += 5;
}
push(aVal);
}
void CffContext::writeType1Val(ValType aVal)
{
U8* pOut = mpWritePtr;
// tdf#126242
// Type2 has 16.16 fixed numbers, but Type1 does not. To represent values
// with fractions we multiply it by a factor then use “div” operator to
// divide it back and keep the fractions.
// Code Adapted from:
// https://github.com/fontforge/fontforge/blob/f152f12e567ea5bd737a2907c318ae26cfaabd08/fontforge/splinesave.c#L378
int nDiv = 0;
aVal = rint(aVal * 1024) / 1024;
if (aVal != floor(aVal))
{
if (aVal == rint(aVal * 64) / 64)
nDiv = 64;
else
nDiv = 1024;
aVal *= nDiv;
}
int nInt = static_cast<int>(rint(aVal));
if (nDiv && floor(nInt) / nDiv == floor(nInt / nDiv))
{
nInt = rint(nInt / nDiv);
nDiv = 0;
}
if ((nInt >= -107) && (nInt <= +107))
{
*(pOut++) = static_cast<U8>(nInt + 139); // -107..+107
}
else if ((nInt >= -1131) && (nInt <= +1131))
{
if (nInt >= 0)
nInt += 63124; // +108..+1131
else
nInt = 64148 - nInt; // -108..-1131
*(pOut++) = static_cast<U8>(nInt >> 8);
*(pOut++) = static_cast<U8>(nInt);
}
else
{
// numtype==255 means int32 for Type1, but 16.16 for Type2 charstrings!!!
*(pOut++) = 255;
*(pOut++) = static_cast<U8>(nInt >> 24);
*(pOut++) = static_cast<U8>(nInt >> 16);
*(pOut++) = static_cast<U8>(nInt >> 8);
*(pOut++) = static_cast<U8>(nInt);
}
mpWritePtr = pOut;
if (nDiv)
{
writeType1Val(nDiv);
writeTypeEsc(TYPE1OP::DIV);
}
}
inline void CffContext::writeTypeOp(int nTypeOp) { *(mpWritePtr++) = static_cast<U8>(nTypeOp); }
inline void CffContext::writeTypeEsc(int nTypeEsc)
{
*(mpWritePtr++) = TYPE1OP::T1ESC;
*(mpWritePtr++) = static_cast<U8>(nTypeEsc);
}
void CffContext::pop2MultiWrite(int nArgsPerTypo, int nTypeOp, int nTypeXor)
{
for (int i = 0; i < mnStackIdx;)
{
for (int j = 0; j < nArgsPerTypo; ++j)
{
const ValType aVal = mnValStack[i + j];
writeType1Val(aVal);
}
i += nArgsPerTypo;
writeTypeOp(nTypeOp);
nTypeOp ^= nTypeXor; // for toggling vlineto/hlineto
}
clear();
}
void CffContext::popAll2Write(int nTypeOp)
{
// pop in reverse order, then write
for (int i = 0; i < mnStackIdx; ++i)
{
const ValType aVal = mnValStack[i];
writeType1Val(aVal);
}
clear();
writeTypeOp(nTypeOp);
}
void CffContext::writeCurveTo(int nStackPos, int nIX1, int nIY1, int nIX2, int nIY2, int nIX3,
int nIY3)
{
// get the values from the stack
const ValType nDX1 = nIX1 ? mnValStack[nStackPos + nIX1] : 0;
const ValType nDY1 = nIY1 ? mnValStack[nStackPos + nIY1] : 0;
const ValType nDX2 = nIX2 ? mnValStack[nStackPos + nIX2] : 0;
const ValType nDY2 = nIY2 ? mnValStack[nStackPos + nIY2] : 0;
const ValType nDX3 = nIX3 ? mnValStack[nStackPos + nIX3] : 0;
const ValType nDY3 = nIY3 ? mnValStack[nStackPos + nIY3] : 0;
// emit the curveto operator and operands
// TODO: determine the most efficient curveto operator
// TODO: depending on type1op or type2op target
writeType1Val(nDX1);
writeType1Val(nDY1);
writeType1Val(nDX2);
writeType1Val(nDY2);
writeType1Val(nDX3);
writeType1Val(nDY3);
writeTypeOp(TYPE1OP::RCURVETO);
}
bool CffContext::convertOneTypeOp()
{
const int nType2Op = *(mpReadPtr++);
int i, nInt; // prevent WAE for declarations inside switch cases
// convert each T2op
switch (nType2Op)
{
case TYPE2OP::T2ESC:
if (!convertOneTypeEsc())
return false;
break;
case TYPE2OP::HSTEM:
case TYPE2OP::VSTEM:
if (!addHints(nType2Op == TYPE2OP::VSTEM))
return false;
for (i = 0; i < mnHintSize; i += 2)
{
writeType1Val(mnHintStack[i]);
writeType1Val(mnHintStack[i + 1] - mnHintStack[i]);
writeTypeOp(nType2Op);
}
break;
case TYPE2OP::HSTEMHM:
case TYPE2OP::VSTEMHM:
if (!addHints(nType2Op == TYPE2OP::VSTEMHM))
return false;
break;
case TYPE2OP::CNTRMASK:
// TODO: replace cntrmask with vstem3/hstem3
if (!addHints(true))
return false;
{
U8 nMaskBit = 0;
U8 nMaskByte = 0;
for (i = 0; i < mnHintSize; i += 2, nMaskBit >>= 1)
{
if (!nMaskBit)
{
nMaskByte = *(mpReadPtr++);
nMaskBit = 0x80;
}
if (!(nMaskByte & nMaskBit))
continue;
if (i >= 8 * int(sizeof(mnCntrMask)))
mbIgnoreHints = true;
if (mbIgnoreHints)
continue;
mnCntrMask |= (1U << i);
}
}
break;
case TYPE2OP::HINTMASK:
if (!addHints(true))
return false;
{
sal_Int32 nHintMask = 0;
int nCntrBits[2] = { 0, 0 };
U8 nMaskBit = 0;
U8 nMaskByte = 0;
int const MASK_BITS = 8 * sizeof(nHintMask);
for (i = 0; i < mnHintSize; i += 2, nMaskBit >>= 1)
{
if (!nMaskBit)
{
nMaskByte = *(mpReadPtr++);
nMaskBit = 0x80;
}
if (!(nMaskByte & nMaskBit))
continue;
if (i >= MASK_BITS)
mbIgnoreHints = true;
if (mbIgnoreHints)
continue;
nHintMask |= (1U << i);
nCntrBits[i < mnHorzHintSize] += (mnCntrMask >> i) & 1;
}
mbIgnoreHints |= (nCntrBits[0] && (nCntrBits[0] != 3));
mbIgnoreHints |= (nCntrBits[1] && (nCntrBits[1] != 3));
if (mbIgnoreHints)
break;
for (i = 0; i < mnHintSize; i += 2)
{
if (i >= MASK_BITS || !(nHintMask & (1U << i)))
continue;
writeType1Val(mnHintStack[i]);
writeType1Val(mnHintStack[i + 1] - mnHintStack[i]);
const bool bHorz = (i < mnHorzHintSize);
if (!nCntrBits[bHorz])
writeTypeOp(bHorz ? TYPE1OP::HSTEM : TYPE1OP::VSTEM);
else if (!--nCntrBits[bHorz])
writeTypeEsc(bHorz ? TYPE1OP::HSTEM3 : TYPE1OP::VSTEM3);
}
}
break;
case TYPE2OP::CALLSUBR:
case TYPE2OP::CALLGSUBR:
{
nInt = popInt();
const bool bGlobal = (nType2Op == TYPE2OP::CALLGSUBR);
if (!callType2Subr(bGlobal, nInt))
return false;
}
break;
case TYPE2OP::RETURN:
// TODO: check that we are in a subroutine
return true;
case TYPE2OP::VMOVETO:
case TYPE2OP::HMOVETO:
if (mbNeedClose)
writeTypeOp(TYPE1OP::CLOSEPATH);
else
updateWidth(size() > 1);
mbNeedClose = true;
pop2MultiWrite(1, nType2Op);
break;
case TYPE2OP::VLINETO:
case TYPE2OP::HLINETO:
pop2MultiWrite(1, nType2Op, TYPE1OP::VLINETO ^ TYPE1OP::HLINETO);
break;
case TYPE2OP::RMOVETO:
// TODO: convert rmoveto to vlineto/hlineto if possible
if (mbNeedClose)
writeTypeOp(TYPE1OP::CLOSEPATH);
else
updateWidth(size() > 2);
mbNeedClose = true;
pop2MultiWrite(2, nType2Op);
break;
case TYPE2OP::RLINETO:
// TODO: convert rlineto to vlineto/hlineto if possible
pop2MultiWrite(2, nType2Op);
break;
case TYPE2OP::RCURVETO:
// TODO: convert rcurveto to vh/hv/hh/vv-curveto if possible
pop2MultiWrite(6, nType2Op);
break;
case TYPE2OP::RCURVELINE:
i = 0;
while ((i += 6) <= mnStackIdx)
writeCurveTo(i, -6, -5, -4, -3, -2, -1);
i -= 6;
while ((i += 2) <= mnStackIdx)
{
writeType1Val(mnValStack[i - 2]);
writeType1Val(mnValStack[i - 1]);
writeTypeOp(TYPE2OP::RLINETO);
}
clear();
break;
case TYPE2OP::RLINECURVE:
i = 0;
while ((i += 2) <= mnStackIdx - 6)
{
writeType1Val(mnValStack[i - 2]);
writeType1Val(mnValStack[i - 1]);
writeTypeOp(TYPE2OP::RLINETO);
}
i -= 2;
while ((i += 6) <= mnStackIdx)
writeCurveTo(i, -6, -5, -4, -3, -2, -1);
clear();
break;
case TYPE2OP::VHCURVETO:
case TYPE2OP::HVCURVETO:
{
bool bVert = (nType2Op == TYPE2OP::VHCURVETO);
i = 0;
nInt = 0;
if (mnStackIdx & 1)
nInt = static_cast<int>(mnValStack[--mnStackIdx]);
while ((i += 4) <= mnStackIdx)
{
// TODO: use writeCurveTo()
if (bVert)
writeType1Val(0);
writeType1Val(mnValStack[i - 4]);
if (!bVert)
writeType1Val(0);
writeType1Val(mnValStack[i - 3]);
writeType1Val(mnValStack[i - 2]);
if (!bVert)
writeType1Val(static_cast<ValType>((i == mnStackIdx) ? nInt : 0));
writeType1Val(mnValStack[i - 1]);
if (bVert)
writeType1Val(static_cast<ValType>((i == mnStackIdx) ? nInt : 0));
bVert = !bVert;
writeTypeOp(TYPE2OP::RCURVETO);
}
}
clear();
break;
case TYPE2OP::HHCURVETO:
i = (mnStackIdx & 1);
while ((i += 4) <= mnStackIdx)
{
if (i != 5)
writeCurveTo(i, -4, 0, -3, -2, -1, 0);
else
writeCurveTo(i, -4, -5, -3, -2, -1, 0);
}
clear();
break;
case TYPE2OP::VVCURVETO:
i = (mnStackIdx & 1);
while ((i += 4) <= mnStackIdx)
{
if (i != 5)
writeCurveTo(i, 0, -4, -3, -2, 0, -1);
else
writeCurveTo(i, -5, -4, -3, -2, 0, -1);
}
clear();
break;
case TYPE2OP::ENDCHAR:
if (size() >= 4 && mbDoSeac)
{
// Deprecated seac-like use of endchar (Adobe Technical Note #5177,
// Appendix C).
auto achar = popVal();
auto bchar = popVal();
auto ady = popVal();
auto adx = popVal();
int nBase = {}, nAccent = {};
if (getBaseAccent(bchar, achar, &nBase, &nAccent))
{
maExtraGlyphIds.push_back(nBase);
maExtraGlyphIds.push_back(nAccent);
writeType1Val(0); // TODO accent sb
writeType1Val(adx);
writeType1Val(ady);
writeType1Val(bchar);
writeType1Val(achar);
writeTypeEsc(TYPE1OP::SEAC);
}
}
if (mbNeedClose)
writeTypeOp(TYPE1OP::CLOSEPATH);
else
updateWidth(size() >= 1);
// mbNeedClose = true;
writeTypeOp(TYPE1OP::ENDCHAR);
break;
default:
if (((nType2Op >= 32) && (nType2Op <= 255)) || (nType2Op == 28))
{
--mpReadPtr;
read2push();
}
else
{
popAll2Write(nType2Op);
SAL_WARN("vcl.fonts.cff", "unhandled type2op " << nType2Op);
return false;
}
break;
}
return true;
}
bool CffContext::convertOneTypeEsc()
{
const int nType2Esc = *(mpReadPtr++);
ValType* pTop = &mnValStack[mnStackIdx - 1];
// convert each T2op
switch (nType2Esc)
{
case TYPE2OP::AND:
if (mnStackIdx < 2)
return false;
pTop[0] = static_cast<ValType>(static_cast<int>(pTop[0]) & static_cast<int>(pTop[-1]));
--mnStackIdx;
break;
case TYPE2OP::OR:
if (mnStackIdx < 2)
return false;
pTop[0] = static_cast<ValType>(static_cast<int>(pTop[0]) | static_cast<int>(pTop[-1]));
--mnStackIdx;
break;
case TYPE2OP::NOT:
if (mnStackIdx < 1)
return false;
pTop[0] = ValType(pTop[0] == 0);
break;
case TYPE2OP::ABS:
if (mnStackIdx < 1)
return false;
if (pTop[0] >= 0)
break;
[[fallthrough]];
case TYPE2OP::NEG:
if (mnStackIdx < 1)
return false;
pTop[0] = -pTop[0];
break;
case TYPE2OP::ADD:
if (mnStackIdx < 2)
return false;
pTop[0] += pTop[-1];
--mnStackIdx;
break;
case TYPE2OP::SUB:
if (mnStackIdx < 2)
return false;
pTop[0] -= pTop[-1];
--mnStackIdx;
break;
case TYPE2OP::MUL:
if (mnStackIdx < 2)
return false;
if (pTop[-1])
pTop[0] *= pTop[-1];
--mnStackIdx;
break;
case TYPE2OP::DIV:
if (mnStackIdx < 2)
return false;
if (pTop[-1])
pTop[0] /= pTop[-1];
--mnStackIdx;
break;
case TYPE2OP::EQ:
if (mnStackIdx < 2)
return false;
pTop[0] = ValType(pTop[0] == pTop[-1]);
--mnStackIdx;
break;
case TYPE2OP::DROP:
if (mnStackIdx < 1)
return false;
--mnStackIdx;
break;
case TYPE2OP::PUT:
{
if (mnStackIdx < 2)
return false;
const int nIdx = static_cast<int>(pTop[0]);
if (nIdx < 0 || nIdx >= NMAXTRANS)
return false;
mnTransVals[nIdx] = pTop[-1];
mnStackIdx -= 2;
break;
}
case TYPE2OP::GET:
{
if (mnStackIdx < 1)
return false;
const int nIdx = static_cast<int>(pTop[0]);
if (nIdx < 0 || nIdx >= NMAXTRANS)
return false;
pTop[0] = mnTransVals[nIdx];
break;
}
case TYPE2OP::IFELSE:
{
if (mnStackIdx < 4)
return false;
if (pTop[-1] > pTop[0])
pTop[-3] = pTop[-2];
mnStackIdx -= 3;
break;
}
case TYPE2OP::RANDOM:
pTop[+1] = 1234; // TODO
++mnStackIdx;
break;
case TYPE2OP::SQRT:
// TODO: implement
break;
case TYPE2OP::DUP:
if (mnStackIdx < 1)
return false;
pTop[+1] = pTop[0];
++mnStackIdx;
break;
case TYPE2OP::EXCH:
{
if (mnStackIdx < 2)
return false;
const ValType nVal = pTop[0];
pTop[0] = pTop[-1];
pTop[-1] = nVal;
break;
}
case TYPE2OP::INDEX:
{
if (mnStackIdx < 1)
return false;
const int nVal = static_cast<int>(pTop[0]);
if (nVal < 0 || nVal >= mnStackIdx - 1)
return false;
pTop[0] = pTop[-1 - nVal];
break;
}
case TYPE2OP::ROLL:
{
if (mnStackIdx < 1)
return false;
const int nNum = static_cast<int>(pTop[0]);
if (nNum < 0 || nNum >= mnStackIdx - 2)
return false;
// (void)nNum; // TODO: implement
// TODO: implement: const int nOfs = static_cast<int>(pTop[-1]);
mnStackIdx -= 2;
break;
}
case TYPE2OP::HFLEX1:
{
if (mnStackIdx != 9)
return false;
writeCurveTo(mnStackIdx, -9, -8, -7, -6, -5, 0);
writeCurveTo(mnStackIdx, -4, 0, -3, -2, -1, 0);
// TODO: emulate hflex1 using othersubr call
mnStackIdx -= 9;
}
break;
case TYPE2OP::HFLEX:
{
if (mnStackIdx != 7)
return false;
ValType* pX = &mnValStack[mnStackIdx];
pX[+1] = -pX[-5]; // temp: +dy5==-dy2
writeCurveTo(mnStackIdx, -7, 0, -6, -5, -4, 0);
writeCurveTo(mnStackIdx, -3, 0, -2, +1, -1, 0);
// TODO: emulate hflex using othersubr call
mnStackIdx -= 7;
}
break;
case TYPE2OP::FLEX:
{
if (mnStackIdx != 13)
return false;
writeCurveTo(mnStackIdx, -13, -12, -11, -10, -9, -8);
writeCurveTo(mnStackIdx, -7, -6, -5, -4, -3, -2);
// ignoring ValType nFlexDepth = mnValStack[ mnStackIdx-1 ];
mnStackIdx -= 13;
}
break;
case TYPE2OP::FLEX1:
{
if (mnStackIdx != 11)
return false;
// write the first part of the flex1-hinted curve
writeCurveTo(mnStackIdx, -11, -10, -9, -8, -7, -6);
// determine if nD6 is horizontal or vertical
const int i = mnStackIdx;
ValType nDeltaX = mnValStack[i - 11] + mnValStack[i - 9] + mnValStack[i - 7]
+ mnValStack[i - 5] + mnValStack[i - 3];
if (nDeltaX < 0)
nDeltaX = -nDeltaX;
ValType nDeltaY = mnValStack[i - 10] + mnValStack[i - 8] + mnValStack[i - 6]
+ mnValStack[i - 4] + mnValStack[i - 2];
if (nDeltaY < 0)
nDeltaY = -nDeltaY;
const bool bVertD6 = (nDeltaY > nDeltaX);
// write the second part of the flex1-hinted curve
if (!bVertD6)
writeCurveTo(mnStackIdx, -5, -4, -3, -2, -1, 0);
else
writeCurveTo(mnStackIdx, -5, -4, -3, -2, 0, -1);
mnStackIdx -= 11;
}
break;
default:
SAL_WARN("vcl.fonts.cff", "unhandled type2esc " << nType2Esc);
return false;
}
return true;
}
bool CffContext::callType2Subr(bool bGlobal, int nSubrNumber)
{
const U8* const pOldReadPtr = mpReadPtr;
const U8* const pOldReadEnd = mpReadEnd;
if (bGlobal)
{
nSubrNumber += mnGlobalSubrBias;
if (seekIndexData(mnGlobalSubrBase, nSubrNumber) < 0)
return false;
}
else
{
nSubrNumber += mpCffLocal->mnLocalSubrBias;
if (seekIndexData(mpCffLocal->mnLocalSubrBase, nSubrNumber) < 0)
return false;
}
while (mpReadPtr < mpReadEnd)
{
if (!convertOneTypeOp())
return false;
}
mpReadPtr = pOldReadPtr;
mpReadEnd = pOldReadEnd;
return true;
}
int CffContext::convert2Type1Ops(CffLocal* pCffLocal, const U8* const pT2Ops, int nT2Len,
U8* const pT1Ops)
{
mpCffLocal = pCffLocal;
// prepare the charstring conversion
mpWritePtr = pT1Ops;
U8 aType1Ops[MAX_T1OPS_SIZE];
if (!pT1Ops)
mpWritePtr = aType1Ops;
*const_cast<U8**>(&pT1Ops) = mpWritePtr;
// prepend random seed for T1crypt
*(mpWritePtr++) = 0x48;
*(mpWritePtr++) = 0x44;
*(mpWritePtr++) = 0x55;
*(mpWritePtr++) = ' ';
// convert the Type2 charstring to Type1
mpReadPtr = pT2Ops;
mpReadEnd = pT2Ops + nT2Len;
// prepend "hsbw" or "sbw"
// TODO: only emit hsbw when charwidth is known
writeType1Val(0); // TODO: aContext.getLeftSideBearing();
U8* pCharWidthPtr = mpWritePtr; // need to overwrite that later
// pad out 5 bytes for the char width with default val 1000 (to be
// filled with the actual value below)
*(mpWritePtr++) = 255;
*(mpWritePtr++) = static_cast<U8>(0);
*(mpWritePtr++) = static_cast<U8>(0);
*(mpWritePtr++) = static_cast<U8>(250);
*(mpWritePtr++) = static_cast<U8>(124);
writeTypeOp(TYPE1OP::HSBW);
mbNeedClose = false;
mbIgnoreHints = false;
mnHintSize = mnHorzHintSize = mnStackIdx = 0;
maCharWidth = -1; //#######
mnCntrMask = 0;
while (mpReadPtr < mpReadEnd)
{
if (!convertOneTypeOp())
return -1;
}
if (maCharWidth != -1)
{
// overwrite earlier charWidth value, which we only now have
// parsed out of mpReadPtr buffer (by way of
// convertOneTypeOp()s above)
const int nInt = static_cast<int>(maCharWidth);
*(pCharWidthPtr++) = 255;
*(pCharWidthPtr++) = static_cast<U8>(nInt >> 24);
*(pCharWidthPtr++) = static_cast<U8>(nInt >> 16);
*(pCharWidthPtr++) = static_cast<U8>(nInt >> 8);
*(pCharWidthPtr++) = static_cast<U8>(nInt);
}
const int nType1Len = mpWritePtr - pT1Ops;
// encrypt the Type1 charstring
unsigned nRDCryptR = 4330; // TODO: mnRDCryptSeed;
for (U8* p = pT1Ops; p < mpWritePtr; ++p)
{
*p ^= (nRDCryptR >> 8);
nRDCryptR = (*p + nRDCryptR) * 52845 + 22719;
}
return nType1Len;
}
RealType CffContext::readRealVal()
{
// TODO: more thorough number validity test
bool bComma = false;
int nExpVal = 0;
int nExpSign = 0;
S64 nNumber = 0;
RealType fReal = +1.0;
for (;;)
{
const U8 c = *(mpReadPtr++); // read nibbles
// parse high nibble
const U8 nH = c >> 4U;
if (nH <= 9)
{
nNumber = nNumber * 10 + nH;
--nExpVal;
}
else if (nH == 10)
{ // comma
nExpVal = 0;
bComma = true;
}
else if (nH == 11)
{ // +exp
fReal *= nNumber;
nExpSign = +1;
nNumber = 0;
}
else if (nH == 12)
{ // -exp
fReal *= nNumber;
nExpSign = -1;
nNumber = 0;
}
else if (nH == 13)
{ // reserved
// TODO: ignore or error?
}
else if (nH == 14) // minus
fReal = -fReal;
else if (nH == 15) // end
break;
// parse low nibble
const U8 nL = c & 0x0F;
if (nL <= 9)
{
nNumber = nNumber * 10 + nL;
--nExpVal;
}
else if (nL == 10)
{ // comma
nExpVal = 0;
bComma = true;
}
else if (nL == 11)
{ // +exp
fReal *= nNumber;
nNumber = 0;
nExpSign = +1;
}
else if (nL == 12)
{ // -exp
fReal *= nNumber;
nNumber = 0;
nExpSign = -1;
}
else if (nL == 13)
{ // reserved
// TODO: ignore or error?
}
else if (nL == 14) // minus
fReal = -fReal;
else if (nL == 15) // end
break;
}
// merge exponents
if (!bComma)
nExpVal = 0;
if (!nExpSign)
{
fReal *= nNumber;
}
else if (nExpSign > 0)
{
nExpVal += static_cast<int>(nNumber);
}
else if (nExpSign < 0)
{
nExpVal -= static_cast<int>(nNumber);
}
// apply exponents
if (!nExpVal)
{ /*nothing to apply*/
}
else if (nExpVal > 0)
{
while (--nExpVal >= 0)
fReal *= 10.0;
}
else if (nExpVal < 0)
{
while (++nExpVal <= 0)
fReal /= 10.0;
}
return fReal;
}
// prepare to access an element inside a CFF/CID index table
int CffContext::seekIndexData(int nIndexBase, int nDataIndex)
{
if (nIndexBase <= 0 || mpBasePtr + nIndexBase + 3 > mpBaseEnd)
return -1;
if (nDataIndex < 0)
return -1;
mpReadPtr = mpBasePtr + nIndexBase;
const int nDataCount = (mpReadPtr[0] << 8) + mpReadPtr[1];
if (nDataIndex >= nDataCount)
return -1;
const int nDataOfsSz = mpReadPtr[2];
mpReadPtr += 3 + (nDataOfsSz * nDataIndex);
int nOfs1 = 0;
switch (nDataOfsSz)
{
default:
SAL_WARN("vcl.fonts.cff", "\tINVALID nDataOfsSz=" << nDataOfsSz);
return -1;
case 1:
nOfs1 = mpReadPtr[0];
break;
case 2:
nOfs1 = (mpReadPtr[0] << 8) + mpReadPtr[1];
break;
case 3:
nOfs1 = (mpReadPtr[0] << 16) + (mpReadPtr[1] << 8) + mpReadPtr[2];
break;
case 4:
nOfs1
= (mpReadPtr[0] << 24) + (mpReadPtr[1] << 16) + (mpReadPtr[2] << 8) + mpReadPtr[3];
break;
}
mpReadPtr += nDataOfsSz;
int nOfs2 = 0;
switch (nDataOfsSz)
{
case 1:
nOfs2 = mpReadPtr[0];
break;
case 2:
nOfs2 = (mpReadPtr[0] << 8) + mpReadPtr[1];
break;
case 3:
nOfs2 = (mpReadPtr[0] << 16) + (mpReadPtr[1] << 8) + mpReadPtr[2];
break;
case 4:
nOfs2
= (mpReadPtr[0] << 24) + (mpReadPtr[1] << 16) + (mpReadPtr[2] << 8) + mpReadPtr[3];
break;
}
mpReadPtr = mpBasePtr + (nIndexBase + 2) + nDataOfsSz * (nDataCount + 1) + nOfs1;
mpReadEnd = mpReadPtr + (nOfs2 - nOfs1);
if (nOfs1 < 0 || nOfs2 < nOfs1 || mpReadPtr > mpBaseEnd || mpReadEnd > mpBaseEnd)
return -1;
return (nOfs2 - nOfs1);
}
// skip over a CFF/CID index table
bool CffContext::seekIndexEnd(int nIndexBase)
{
if (nIndexBase <= 0 || mpBasePtr + nIndexBase + 3 > mpBaseEnd)
return false;
mpReadPtr = mpBasePtr + nIndexBase;
const int nDataCount = (mpReadPtr[0] << 8) + mpReadPtr[1];
const int nDataOfsSz = mpReadPtr[2];
mpReadPtr += 3 + nDataOfsSz * nDataCount;
if (mpReadPtr > mpBaseEnd)
return false;
int nEndOfs = 0;
switch (nDataOfsSz)
{
default:
SAL_WARN("vcl.fonts.cff", "\tINVALID nDataOfsSz=" << nDataOfsSz);
return false;
case 1:
nEndOfs = mpReadPtr[0];
break;
case 2:
nEndOfs = (mpReadPtr[0] << 8) + mpReadPtr[1];
break;
case 3:
nEndOfs = (mpReadPtr[0] << 16) + (mpReadPtr[1] << 8) + mpReadPtr[2];
break;
case 4:
nEndOfs
= (mpReadPtr[0] << 24) + (mpReadPtr[1] << 16) + (mpReadPtr[2] << 8) + mpReadPtr[3];
break;
}
mpReadPtr += nDataOfsSz;
mpReadPtr += nEndOfs - 1;
mpReadEnd = mpBaseEnd;
if (nEndOfs < 0)
return false;
if (mpReadEnd > mpBaseEnd)
return false;
return true;
}
// initialize FONTDICT specific values
CffLocal::CffLocal()
: mnPrivDictBase(0)
, mnPrivDictSize(0)
, mnLocalSubrOffs(0)
, mnLocalSubrBase(0)
, mnLocalSubrBias(0)
, maNominalWidth(0)
, maDefaultWidth(0)
, maStemStdHW(0)
, maStemStdVW(0)
, mfBlueScale(0.0)
, mfBlueShift(0.0)
, mfBlueFuzz(0.0)
, mfExpFactor(0.0)
, mnLangGroup(0)
, mbForceBold(false)
{
}
CffGlobal::CffGlobal()
: mnNameIdxBase(0)
, mnStringIdxBase(0)
, mbCIDFont(false)
, mnCharStrBase(0)
, mnCharStrCount(0)
, mnCharsetBase(0)
, mnGlobalSubrBase(0)
, mnGlobalSubrCount(0)
, mnGlobalSubrBias(0)
, mnFDSelectBase(0)
, mnFontDictBase(0)
, mnFDAryCount(1)
{
}
bool CffContext::initialCffRead()
{
// get the CFFHeader
mpReadPtr = mpBasePtr;
const U8 nVerMajor = *(mpReadPtr++);
const U8 nVerMinor = *(mpReadPtr++);
const U8 nHeaderSize = *(mpReadPtr++);
const U8 nOffsetSize = *(mpReadPtr++);
if (nVerMajor != 1 || nVerMinor != 0)
{
SAL_WARN("vcl.fonts.cff",
"Unsupported CFF version: " << int(nVerMajor) << "." << int(nVerMinor));
return false;
}
if (!nOffsetSize)
return false;
// prepare access to the NameIndex
mnNameIdxBase = nHeaderSize;
mpReadPtr = mpBasePtr + nHeaderSize;
if (!seekIndexEnd(mnNameIdxBase))
return false;
// get the TopDict index
const sal_Int32 nTopDictBase = getReadOfs();
const int nTopDictCount = (mpReadPtr[0] << 8) + mpReadPtr[1];
if (nTopDictCount)
{
for (int i = 0; i < nTopDictCount; ++i)
{
if (seekIndexData(nTopDictBase, i) < 0)
return false;
while (mpReadPtr < mpReadEnd)
readDictOp();
if (mpReadPtr != mpReadEnd)
return false;
}
}
// prepare access to the String index
mnStringIdxBase = getReadOfs();
if (!seekIndexEnd(mnStringIdxBase))
return false;
// prepare access to the GlobalSubr index
mnGlobalSubrBase = getReadOfs();
mnGlobalSubrCount = (mpReadPtr[0] << 8) + mpReadPtr[1];
mnGlobalSubrBias
= (mnGlobalSubrCount < 1240) ? 107 : (mnGlobalSubrCount < 33900) ? 1131 : 32768;
// skip past the last GlobalSubr entry
// seekIndexEnd( mnGlobalSubrBase);
// get/skip the Encodings (we got mnEncodingBase from TOPDICT)
// seekEncodingsEnd( mnEncodingBase);
// get/skip the Charsets (we got mnCharsetBase from TOPDICT)
// seekCharsetsEnd( mnCharStrBase);
// get/skip FDSelect (CID only) data
// prepare access to the CharStrings index (we got the base from TOPDICT)
mpReadPtr = mpBasePtr + mnCharStrBase;
mnCharStrCount = (mpReadPtr[0] << 8) + mpReadPtr[1];
// seekIndexEnd( mnCharStrBase);
// read the FDArray index (CID only)
if (mbCIDFont)
{
mpReadPtr = mpBasePtr + mnFontDictBase;
mnFDAryCount = (mpReadPtr[0] << 8) + mpReadPtr[1];
if (o3tl::make_unsigned(mnFDAryCount) >= SAL_N_ELEMENTS(maCffLocal))
{
SAL_INFO("vcl.fonts.cff", "CffContext: too many CFF in font");
return false;
}
// read FDArray details to get access to the PRIVDICTs
for (int i = 0; i < mnFDAryCount; ++i)
{
mpCffLocal = &maCffLocal[i];
if (seekIndexData(mnFontDictBase, i) < 0)
return false;
while (mpReadPtr < mpReadEnd)
readDictOp();
if (mpReadPtr != mpReadEnd)
return false;
}
}
for (int i = 0; i < mnFDAryCount; ++i)
{
mpCffLocal = &maCffLocal[i];
// get the PrivateDict index
// (we got mnPrivDictSize and mnPrivDictBase from TOPDICT or FDArray)
if (mpCffLocal->mnPrivDictSize != 0)
{
if (mpCffLocal->mnPrivDictSize <= 0)
return false;
// get the PrivDict data
mpReadPtr = mpBasePtr + mpCffLocal->mnPrivDictBase;
mpReadEnd = mpReadPtr + mpCffLocal->mnPrivDictSize;
if (mpReadEnd > mpBaseEnd)
return false;
// read PrivDict details
while (mpReadPtr < mpReadEnd)
readDictOp();
}
// prepare access to the LocalSubrs (we got mnLocalSubrOffs from PRIVDICT)
if (mpCffLocal->mnLocalSubrOffs)
{
// read LocalSubrs summary
mpCffLocal->mnLocalSubrBase = mpCffLocal->mnPrivDictBase + mpCffLocal->mnLocalSubrOffs;
mpReadPtr = mpBasePtr + mpCffLocal->mnLocalSubrBase;
const int nSubrCount = (mpReadPtr[0] << 8) + mpReadPtr[1];
mpCffLocal->mnLocalSubrBias
= (nSubrCount < 1240) ? 107 : (nSubrCount < 33900) ? 1131 : 32768;
// seekIndexEnd( mpCffLocal->mnLocalSubrBase);
}
}
// ignore the Notices info
return true;
}
// get a cstring from a StringID
OString CffContext::getString(int nStringID)
{
// get a standard string if possible
const static int nStdStrings = SAL_N_ELEMENTS(pStringIds);
if ((nStringID >= 0) && (nStringID < nStdStrings))
return pStringIds[nStringID];
// else get the string from the StringIndex table
comphelper::ValueRestorationGuard pReadPtr(mpReadPtr);
comphelper::ValueRestorationGuard pReadEnd(mpReadEnd);
nStringID -= nStdStrings;
int nLen = seekIndexData(mnStringIdxBase, nStringID);
// TODO: just return the undecorated name
if (nLen < 0)
{
return "name[" + OString::number(nStringID) + "].notfound!";
}
else
{
const int nMaxLen = 2560 - 1;
if (nLen >= nMaxLen)
nLen = nMaxLen; // TODO: still needed?
return OString(reinterpret_cast<char const*>(mpReadPtr), nLen);
}
}
// access a CID's FDSelect table
int CffContext::getFDSelect(int nGlyphIndex) const
{
if (nGlyphIndex < 0 || nGlyphIndex >= mnCharStrCount)
return -1;
if (!mbCIDFont)
return 0;
const U8* pReadPtr = mpBasePtr + mnFDSelectBase;
const U8 nFDSelFormat = *(pReadPtr++);
switch (nFDSelFormat)
{
case 0:
{ // FDSELECT format 0
pReadPtr += nGlyphIndex;
const U8 nFDIdx = *(pReadPtr++);
return nFDIdx;
} //break;
case 3:
{ // FDSELECT format 3
const U16 nRangeCount = (pReadPtr[0] << 8) + pReadPtr[1];
if (nRangeCount <= 0)
return -1;
if (nRangeCount > mnCharStrCount)
return -1;
U16 nPrev = (pReadPtr[2] << 8) + pReadPtr[3];
if (nPrev != 0)
return -1;
pReadPtr += 4;
// TODO? binary search
for (int i = 0; i < nRangeCount; ++i)
{
const U8 nFDIdx = pReadPtr[0];
const U16 nNext = (pReadPtr[1] << 8) + pReadPtr[2];
if (nPrev >= nNext)
return -1;
if (nGlyphIndex < nNext)
return nFDIdx;
pReadPtr += 3;
nPrev = nNext;
}
}
break;
default: // invalid FDselect format
SAL_WARN("vcl.fonts.cff", "invalid CFF.FdselType=" << nFDSelFormat);
break;
}
return -1;
}
int CffContext::getGlyphSID(int nGlyphIndex) const
{
if (nGlyphIndex == 0)
return 0; // ".notdef"
if ((nGlyphIndex < 0) || (nGlyphIndex >= mnCharStrCount))
return -1;
// get the SID/CID from the Charset table
const U8* pReadPtr = mpBasePtr + mnCharsetBase;
const U8 nCSetFormat = *(pReadPtr++);
int nGlyphsToSkip = nGlyphIndex - 1;
switch (nCSetFormat)
{
case 0: // charset format 0
pReadPtr += 2 * nGlyphsToSkip;
nGlyphsToSkip = 0;
break;
case 1: // charset format 1
while (nGlyphsToSkip >= 0)
{
const int nLeft = pReadPtr[2];
if (nGlyphsToSkip <= nLeft)
break;
nGlyphsToSkip -= nLeft + 1;
pReadPtr += 3;
}
break;
case 2: // charset format 2
while (nGlyphsToSkip >= 0)
{
const int nLeft = (pReadPtr[2] << 8) + pReadPtr[3];
if (nGlyphsToSkip <= nLeft)
break;
nGlyphsToSkip -= nLeft + 1;
pReadPtr += 4;
}
break;
default:
SAL_WARN("vcl.fonts.cff", "ILLEGAL CFF-Charset format " << nCSetFormat);
return -2;
}
int nSID = (pReadPtr[0] << 8) + pReadPtr[1];
nSID += nGlyphsToSkip;
// NOTE: for CID-fonts the resulting SID is interpreted as CID
return nSID;
}
// NOTE: the result becomes invalid with the next call to this method
OString CffContext::getGlyphName(int nGlyphIndex)
{
// the first glyph is always the .notdef glyph
if (nGlyphIndex == 0)
return tok_notdef;
// get the glyph specific name
const int nSID = getGlyphSID(nGlyphIndex);
if (nSID < 0) // default glyph name
{
char aDefaultGlyphName[64];
o3tl::sprintf(aDefaultGlyphName, "gly%03d", nGlyphIndex);
return aDefaultGlyphName;
}
else if (mbCIDFont) // default glyph name in CIDs
{
char aDefaultGlyphName[64];
o3tl::sprintf(aDefaultGlyphName, "cid%03d", nSID);
return aDefaultGlyphName;
}
else
{ // glyph name from string table
auto const pSidName = getString(nSID);
// check validity of glyph name
const char* p = pSidName.getStr();
while ((*p >= '0') && (*p <= 'z'))
++p;
if ((p >= pSidName.getStr() + 1) && (*p == '\0'))
return pSidName;
// if needed invent a fallback name
char aDefaultGlyphName[64];
o3tl::sprintf(aDefaultGlyphName, "bad%03d", nSID);
return aDefaultGlyphName;
}
}
bool CffContext::getBaseAccent(ValType aBase, ValType aAccent, int* nBase, int* nAccent)
{
bool bBase = false, bAccent = false;
for (int i = 0; i < mnCharStrCount; i++)
{
OString pGlyphName = getGlyphName(i);
if (pGlyphName == pStandardEncoding[int(aBase)])
{
*nBase = i;
bBase = true;
}
if (pGlyphName == pStandardEncoding[int(aAccent)])
{
*nAccent = i;
bAccent = true;
}
if (bBase && bAccent)
return true;
}
return false;
}
namespace
{
class Type1Emitter
{
public:
explicit Type1Emitter(SvMemoryStream& rStream);
size_t emitRawData(const char* pData, size_t nLength) const;
void emitAllRaw();
void emitAllCrypted();
int tellPos() const;
void updateLen(int nTellPos, size_t nLength);
void emitValVector(const char* pLineHead, const char* pLineTail, const std::vector<ValType>&);
private:
SvMemoryStream& mrStream;
unsigned mnEECryptR;
public:
OStringBuffer maBuffer;
};
}
Type1Emitter::Type1Emitter(SvMemoryStream& rStream)
: mrStream(rStream)
, mnEECryptR(55665) // default eexec seed, TODO: mnEECryptSeed
{
}
int Type1Emitter::tellPos() const
{
int nTellPos = mrStream.Tell();
return nTellPos;
}
void Type1Emitter::updateLen(int nTellPos, size_t nLength)
{
// update PFB segment header length
U8 cData[4];
cData[0] = static_cast<U8>(nLength >> 0);
cData[1] = static_cast<U8>(nLength >> 8);
cData[2] = static_cast<U8>(nLength >> 16);
cData[3] = static_cast<U8>(nLength >> 24);
const tools::Long nCurrPos = mrStream.Tell();
if (nCurrPos < 0)
return;
if (mrStream.Seek(nTellPos) != static_cast<sal_uInt64>(nTellPos))
return;
mrStream.WriteBytes(cData, sizeof(cData));
mrStream.Seek(nCurrPos);
}
inline size_t Type1Emitter::emitRawData(const char* pData, size_t nLength) const
{
return mrStream.WriteBytes(pData, nLength);
}
inline void Type1Emitter::emitAllRaw()
{
// writeout raw data
emitRawData(maBuffer.getStr(), maBuffer.getLength());
// reset the raw buffer
maBuffer.setLength(0);
}
void Type1Emitter::emitAllCrypted()
{
// apply t1crypt
for (sal_Int32 i = 0; i < maBuffer.getLength(); ++i)
{
maBuffer[i] ^= (mnEECryptR >> 8);
mnEECryptR = (static_cast<U8>(maBuffer[i]) + mnEECryptR) * 52845 + 22719;
}
// emit the t1crypt result
emitAllRaw();
}
// #i110387# quick-and-dirty double->ascii conversion
// also strip off trailing zeros in fraction while we are at it
static OString dbl2str(double fVal)
{
return rtl::math::doubleToString(fVal, rtl_math_StringFormat_G, 6, '.', true);
}
void Type1Emitter::emitValVector(const char* pLineHead, const char* pLineTail,
const std::vector<ValType>& rVector)
{
// ignore empty vectors
if (rVector.empty())
return;
// emit the line head
maBuffer.append(pLineHead);
// emit the vector values
std::vector<ValType>::value_type aVal = 0;
for (std::vector<ValType>::const_iterator it = rVector.begin();;)
{
aVal = *it;
if (++it == rVector.end())
break;
maBuffer.append(dbl2str(aVal));
maBuffer.append(' ');
}
// emit the last value
maBuffer.append(dbl2str(aVal));
// emit the line tail
maBuffer.append(pLineTail);
}
bool CffContext::convertCharStrings(std::vector<CharString>& rCharStrings, int nGlyphCount,
const sal_GlyphId* pGlyphIds)
{
// If we are doing extra glyphs used for seac operator, check for already
// converted glyphs.
bool bCheckDuplicates = !rCharStrings.empty();
rCharStrings.reserve(rCharStrings.size() + nGlyphCount);
for (int i = 0; i < nGlyphCount; ++i)
{
const int nCffGlyphId = pGlyphIds ? pGlyphIds[i] : i;
if ((nCffGlyphId < 0) || (nCffGlyphId >= mnCharStrCount))
return false;
if (!bCheckDuplicates)
{
const auto it
= std::find_if(rCharStrings.begin(), rCharStrings.end(),
[&](const CharString& c) { return c.nCffGlyphId == nCffGlyphId; });
if (it != rCharStrings.end())
continue;
}
// get privdict context matching to the glyph
const int nFDSelect = getFDSelect(nCffGlyphId);
if (nFDSelect < 0)
return false;
mpCffLocal = &maCffLocal[nFDSelect];
// convert the Type2op charstring to its Type1op counterpart
const int nT2Len = seekIndexData(mnCharStrBase, nCffGlyphId);
if (nT2Len <= 0)
return false;
CharString aCharString;
const int nT1Len = convert2Type1Ops(mpCffLocal, mpReadPtr, nT2Len, aCharString.aOps);
if (nT1Len < 0)
return false;
aCharString.nLen = nT1Len;
aCharString.nCffGlyphId = nCffGlyphId;
rCharStrings.push_back(aCharString);
}
return true;
}
bool CffContext::emitAsType1(Type1Emitter& rEmitter, FontSubsetInfo& rFSInfo)
{
OString aFontName = rFSInfo.m_aPSName.toUtf8();
if (aFontName.getLength() > 255)
aFontName = aFontName.copy(0, 255);
// prepare some fontdirectory details
static const int nUniqueIdBase = 4100000; // using private-interchange UniqueIds
static int nUniqueId = nUniqueIdBase;
++nUniqueId;
// create a PFB+Type1 header
static const char aPfbHeader[] = "\x80\x01\x00\x00\x00\x00";
rEmitter.emitRawData(aPfbHeader, sizeof(aPfbHeader) - 1);
rEmitter.maBuffer.append("%!FontType1-1.0: " + OString::Concat(aFontName) + " 001.003\n");
// emit TOPDICT
rEmitter.maBuffer.append("11 dict begin\n" // TODO: dynamic entry count for TOPDICT
"/FontType 1 def\n"
"/PaintType 0 def\n");
rEmitter.maBuffer.append("/FontName /" + OString::Concat(aFontName) + " def\n");
rEmitter.maBuffer.append("/UniqueID " + OString::number(nUniqueId) + " def\n");
// emit FontMatrix
if (maFontMatrix.size() == 6)
rEmitter.emitValVector("/FontMatrix [", "]readonly def\n", maFontMatrix);
else // emit default FontMatrix if needed
rEmitter.maBuffer.append("/FontMatrix [0.001 0 0 0.001 0 0]readonly def\n");
// emit FontBBox
ValType fXFactor = 1.0;
ValType fYFactor = 1.0;
if (maFontMatrix.size() >= 4)
{
fXFactor = 1000.0F * maFontMatrix[0];
fYFactor = 1000.0F * maFontMatrix[3];
}
auto aFontBBox
= { rFSInfo.m_aFontBBox.Left() / fXFactor, rFSInfo.m_aFontBBox.Top() / fYFactor,
rFSInfo.m_aFontBBox.Right() / fXFactor, (rFSInfo.m_aFontBBox.Bottom() + 1) / fYFactor };
rEmitter.emitValVector("/FontBBox {", "}readonly def\n", aFontBBox);
// emit FONTINFO into TOPDICT
rEmitter.maBuffer.append("/FontInfo 2 dict dup begin\n" // TODO: check fontinfo entry count
" /FullName ("
+ OString::Concat(aFontName)
+ ") readonly def\n"
" /FamilyName ("
+ aFontName
+ ") readonly def\n"
"end readonly def\n");
rEmitter.maBuffer.append("/Encoding 256 array\n"
"0 1 255 {1 index exch /.notdef put} for\n");
for (int i = 1; (i < mnCharStrCount) && (i < 256); ++i)
{
OString pGlyphName = getGlyphName(i);
rEmitter.maBuffer.append("dup " + OString::number(i) + " /" + pGlyphName + " put\n");
}
rEmitter.maBuffer.append("readonly def\n");
rEmitter.maBuffer.append(
// TODO: more topdict entries
"currentdict end\n"
"currentfile eexec\n");
// emit PFB header
rEmitter.emitAllRaw();
// update PFB header segment
const int nPfbHeaderLen = rEmitter.tellPos() - 6;
rEmitter.updateLen(2, nPfbHeaderLen);
// prepare start of eexec segment
rEmitter.emitRawData("\x80\x02\x00\x00\x00\x00", 6); // segment start
const int nEExecSegTell = rEmitter.tellPos();
// which always starts with a privdict
// count the privdict entries
int nPrivEntryCount = 9;
// emit blue hints only if non-default values
nPrivEntryCount += int(!mpCffLocal->maOtherBlues.empty());
nPrivEntryCount += int(!mpCffLocal->maFamilyBlues.empty());
nPrivEntryCount += int(!mpCffLocal->maFamilyOtherBlues.empty());
nPrivEntryCount += int(mpCffLocal->mfBlueScale != 0.0);
nPrivEntryCount += int(mpCffLocal->mfBlueShift != 0.0);
nPrivEntryCount += int(mpCffLocal->mfBlueFuzz != 0.0);
// emit stem hints only if non-default values
nPrivEntryCount += int(mpCffLocal->maStemStdHW != 0);
nPrivEntryCount += int(mpCffLocal->maStemStdVW != 0);
nPrivEntryCount += int(!mpCffLocal->maStemSnapH.empty());
nPrivEntryCount += int(!mpCffLocal->maStemSnapV.empty());
// emit other hints only if non-default values
nPrivEntryCount += int(mpCffLocal->mfExpFactor != 0.0);
nPrivEntryCount += int(mpCffLocal->mnLangGroup != 0);
nPrivEntryCount += int(mpCffLocal->mnLangGroup == 1);
nPrivEntryCount += int(mpCffLocal->mbForceBold);
// emit the privdict header
rEmitter.maBuffer.append("\110\104\125 "
"dup\n/Private "
+ OString::number(nPrivEntryCount)
+ " dict dup begin\n"
"/RD{string currentfile exch readstring pop}executeonly def\n"
"/ND{noaccess def}executeonly def\n"
"/NP{noaccess put}executeonly def\n"
"/MinFeature{16 16}ND\n"
"/password 5839 def\n"); // TODO: mnRDCryptSeed?
// emit blue hint related privdict entries
if (!mpCffLocal->maBlueValues.empty())
rEmitter.emitValVector("/BlueValues [", "]ND\n", mpCffLocal->maBlueValues);
else
rEmitter.maBuffer.append("/BlueValues []ND\n"); // default to empty BlueValues
rEmitter.emitValVector("/OtherBlues [", "]ND\n", mpCffLocal->maOtherBlues);
rEmitter.emitValVector("/FamilyBlues [", "]ND\n", mpCffLocal->maFamilyBlues);
rEmitter.emitValVector("/FamilyOtherBlues [", "]ND\n", mpCffLocal->maFamilyOtherBlues);
if (mpCffLocal->mfBlueScale)
{
rEmitter.maBuffer.append("/BlueScale ");
rEmitter.maBuffer.append(dbl2str(mpCffLocal->mfBlueScale));
rEmitter.maBuffer.append(" def\n");
}
if (mpCffLocal->mfBlueShift)
{ // default BlueShift==7
rEmitter.maBuffer.append("/BlueShift ");
rEmitter.maBuffer.append(dbl2str(mpCffLocal->mfBlueShift));
rEmitter.maBuffer.append(" def\n");
}
if (mpCffLocal->mfBlueFuzz)
{ // default BlueFuzz==1
rEmitter.maBuffer.append("/BlueFuzz ");
rEmitter.maBuffer.append(dbl2str(mpCffLocal->mfBlueFuzz));
rEmitter.maBuffer.append(" def\n");
}
// emit stem hint related privdict entries
if (mpCffLocal->maStemStdHW)
{
rEmitter.maBuffer.append("/StdHW [");
rEmitter.maBuffer.append(dbl2str(mpCffLocal->maStemStdHW));
rEmitter.maBuffer.append("] def\n");
}
if (mpCffLocal->maStemStdVW)
{
rEmitter.maBuffer.append("/StdVW [");
rEmitter.maBuffer.append(dbl2str(mpCffLocal->maStemStdVW));
rEmitter.maBuffer.append("] def\n");
}
rEmitter.emitValVector("/StemSnapH [", "]ND\n", mpCffLocal->maStemSnapH);
rEmitter.emitValVector("/StemSnapV [", "]ND\n", mpCffLocal->maStemSnapV);
// emit other hints
if (mpCffLocal->mbForceBold)
rEmitter.maBuffer.append("/ForceBold true def\n");
if (mpCffLocal->mnLangGroup != 0)
rEmitter.maBuffer.append("/LanguageGroup " + OString::number(mpCffLocal->mnLangGroup)
+ " def\n");
if (mpCffLocal->mnLangGroup == 1) // compatibility with ancient printers
rEmitter.maBuffer.append("/RndStemUp false def\n");
if (mpCffLocal->mfExpFactor)
{
rEmitter.maBuffer.append("/ExpansionFactor ");
rEmitter.maBuffer.append(dbl2str(mpCffLocal->mfExpFactor));
rEmitter.maBuffer.append(" def\n");
}
// emit remaining privdict entries
rEmitter.maBuffer.append("/UniqueID " + OString::number(nUniqueId) + " def\n");
// TODO?: more privdict entries?
rEmitter.maBuffer.append("/OtherSubrs\n"
"% Dummy code for faking flex hints\n"
"[ {} {} {} {systemdict /internaldict known not {pop 3}\n"
"{1183615869 systemdict /internaldict get exec\n"
"dup /startlock known\n"
"{/startlock get exec}\n"
"{dup /strtlck known\n"
"{/strtlck get exec}\n"
"{pop 3}\nifelse}\nifelse}\nifelse\n} executeonly\n"
"] ND\n");
// emit used GlobalSubr charstrings
// these are the just the default subrs
// TODO: do we need them as the flex hints are resolved differently?
rEmitter.maBuffer.append(
"/Subrs 5 array\n"
"dup 0 15 RD \x5F\x3D\x6B\xAC\x3C\xBD\x74\x3D\x3E\x17\xA0\x86\x58\x08\x85 NP\n"
"dup 1 9 RD \x5F\x3D\x6B\xD8\xA6\xB5\x68\xB6\xA2 NP\n"
"dup 2 9 RD \x5F\x3D\x6B\xAC\x39\x46\xB9\x43\xF9 NP\n"
"dup 3 5 RD \x5F\x3D\x6B\xAC\xB9 NP\n"
"dup 4 12 RD \x5F\x3D\x6B\xAC\x3E\x5D\x48\x54\x62\x76\x39\x03 NP\n"
"ND\n");
// TODO: emit more GlobalSubr charstrings?
// TODO: emit used LocalSubr charstrings?
// emit the CharStrings for the requested glyphs
std::vector<CharString> aCharStrings;
mbDoSeac = true;
if (!convertCharStrings(aCharStrings, mnCharStrCount))
return false;
// The previous convertCharStrings might collect extra glyphs used in seac
// operator, convert them as well
if (!maExtraGlyphIds.empty())
{
mbDoSeac = false;
if (!convertCharStrings(aCharStrings, maExtraGlyphIds.size(), maExtraGlyphIds.data()))
return false;
}
rEmitter.maBuffer.append("2 index /CharStrings " + OString::number(aCharStrings.size())
+ " dict dup begin\n");
rEmitter.emitAllCrypted();
for (const auto& rCharString : aCharStrings)
{
// get the glyph name
OString pGlyphName = getGlyphName(rCharString.nCffGlyphId);
// emit the encrypted Type1op charstring
rEmitter.maBuffer.append("/" + pGlyphName + " " + OString::number(rCharString.nLen)
+ " RD ");
rEmitter.maBuffer.append(reinterpret_cast<char const*>(rCharString.aOps), rCharString.nLen);
rEmitter.maBuffer.append(" ND\n");
rEmitter.emitAllCrypted();
// provide individual glyphwidths if requested
}
rEmitter.maBuffer.append("end end\nreadonly put\nput\n");
rEmitter.maBuffer.append("dup/FontName get exch definefont pop\n");
rEmitter.maBuffer.append("mark currentfile closefile\n");
rEmitter.emitAllCrypted();
// mark stop of eexec encryption
const int nEExecLen = rEmitter.tellPos() - nEExecSegTell;
rEmitter.updateLen(nEExecSegTell - 4, nEExecLen);
// create PFB footer
static const char aPfxFooter[]
= "\x80\x01\x14\x02\x00\x00\n" // TODO: check segment len
"0000000000000000000000000000000000000000000000000000000000000000\n"
"0000000000000000000000000000000000000000000000000000000000000000\n"
"0000000000000000000000000000000000000000000000000000000000000000\n"
"0000000000000000000000000000000000000000000000000000000000000000\n"
"0000000000000000000000000000000000000000000000000000000000000000\n"
"0000000000000000000000000000000000000000000000000000000000000000\n"
"0000000000000000000000000000000000000000000000000000000000000000\n"
"0000000000000000000000000000000000000000000000000000000000000000\n"
"cleartomark\n"
"\x80\x03";
rEmitter.emitRawData(aPfxFooter, sizeof(aPfxFooter) - 1);
rFSInfo.m_nFontType = FontType::TYPE1_PFB;
return true;
}
namespace vcl
{
bool ConvertCFFfontToType1(const unsigned char* pFontBytes, int nByteLength,
std::vector<sal_uInt8>& rOutBuffer, FontSubsetInfo& rInfo)
{
CffContext aCff(pFontBytes, nByteLength);
if (!aCff.initialCffRead())
return false;
SvMemoryStream aStream;
// emit Type1 font from the CFF input
Type1Emitter aType1Emitter(aStream);
if (!aCff.emitAsType1(aType1Emitter, rInfo))
return false;
rOutBuffer.assign(static_cast<const sal_uInt8*>(aStream.GetData()),
static_cast<const sal_uInt8*>(aStream.GetData()) + aStream.Tell());
return true;
}
} // namespace vcl
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */