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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /vcl/source/fontsubset/cff.cxx
parentInitial commit. (diff)
downloadlibreoffice-upstream/4%7.4.7.tar.xz
libreoffice-upstream/4%7.4.7.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--vcl/source/fontsubset/cff.cxx2240
1 files changed, 2240 insertions, 0 deletions
diff --git a/vcl/source/fontsubset/cff.cxx b/vcl/source/fontsubset/cff.cxx
new file mode 100644
index 000000000..ef756e2fa
--- /dev/null
+++ b/vcl/source/fontsubset/cff.cxx
@@ -0,0 +1,2240 @@
+/* -*- 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 <fontsubset.hxx>
+
+#include <o3tl/safeint.hxx>
+#include <strhelper.hxx>
+#include <sal/log.hxx>
+
+typedef sal_uInt8 U8;
+typedef sal_uInt16 U16;
+typedef sal_Int64 S64;
+
+typedef double RealType;
+typedef RealType ValType;
+
+static const char* pStringIds[] = {
+/*0*/ ".notdef", "space", "exclam", "quotedbl",
+ "numbersign", "dollar", "percent", "ampersand",
+ "quoteright", "parenleft", "parenright", "asterisk",
+ "plus", "comma", "hyphen", "period",
+/*16*/ "slash", "zero", "one", "two",
+ "three", "four", "five", "six",
+ "seven", "eight", "nine", "colon",
+ "semicolon", "less", "equal", "greater",
+/*32*/ "question", "at", "A", "B",
+ "C", "D", "E", "F",
+ "G", "H", "I", "J",
+ "K", "L", "M", "N",
+/*48*/ "O", "P", "Q", "R",
+ "S", "T", "U", "V",
+ "W", "X", "Y", "Z",
+ "bracketleft", "backslash", "bracketright", "asciicircum",
+/*64*/ "underscore", "quoteleft", "a", "b",
+ "c", "d", "e", "f",
+ "g", "h", "i", "j",
+ "k", "l", "m", "n",
+/*80*/ "o", "p", "q", "r",
+ "s", "t", "u", "v",
+ "w", "x", "y", "z",
+ "braceleft", "bar", "braceright", "asciitilde",
+/*96*/ "exclamdown", "cent", "sterlin", "fraction",
+ "yen", "florin", "section", "currency",
+ "quotesingle", "quotedblleft", "guillemotleft", "guilsinglleft",
+ "guilsinglright", "fi", "fl", "endash",
+/*112*/ "dagger", "daggerdbl", "periodcentered", "paragraph",
+ "bullet", "quotesinglbase", "quotedblbase", "quotedblright",
+ "guillemotright", "ellipsis", "perthousand", "questiondown",
+ "grave", "acute", "circumflex", "tilde",
+/*128*/ "macron", "breve", "dotaccent", "dieresis",
+ "ring", "cedilla", "hungarumlaut", "ogonek",
+ "caron", "emdash", "AE", "ordfeminine",
+ "Lslash", "Oslash", "OE", "ordmasculine",
+/*144*/ "ae", "dotlessi", "lslash", "oslash",
+ "oe", "germandbls", "onesuperior", "logicalnot",
+ "mu", "trademark", "Eth", "onehalf",
+ "plusminus", "Thorn", "onequarter", "divide",
+/*160*/ "brokenbar", "degree", "thorn", "threequarters",
+ "twosuperior", "registered", "minus", "eth",
+ "multiply", "threesuperior", "copyright", "Aacute",
+ "Acircumflex", "Adieresis", "Agrave", "Aring",
+/*176*/ "Atilde", "Ccedilla", "Eacute", "Ecircumflex",
+ "Edieresis", "Egrave", "Iacute", "Icircumflex",
+ "Idieresis", "Igrave", "Ntilde", "Oacute",
+ "Ocircumflex", "Odieresis", "Ograve", "Otilde",
+/*192*/ "Scaron", "Uacute", "Ucircumflex", "Udieresis",
+ "Ugrave", "Yacute", "Ydieresis", "Zcaron",
+ "aacute", "acircumflex", "adieresis", "agrave",
+ "aring", "atilde", "ccedilla", "eacute",
+/*208*/ "ecircumflex", "edieresis", "egrave", "iacute",
+ "icircumflex", "idieresis", "igrave", "ntilde",
+ "oacute", "ocircumflex", "odieresis", "ograve",
+ "otilde", "scaron", "uacute", "ucircumflex",
+/*224*/ "udieresis", "ugrave", "yacute", "ydieresis",
+ "zcaron", "exclamsmall", "Hungarumlautsmall","dollaroldstyle",
+ "dollarsuperior", "ampersandsmall", "Acutesmall", "parenleftsuperior",
+ "parenrightsuperior","twodotenleader", "onedotenleader", "zerooldstyle",
+/*240*/ "oneoldstyle", "twooldstyle", "threeoldstyle", "fouroldstyle",
+ "fiveoldstyle", "sixoldstyle", "sevenoldstyle", "eightoldstyle",
+ "nineoldstile", "commasuperior", "threequartersemdash","periodsuperior",
+ "questionsmall", "asuperior", "bsuperior", "centsuperior",
+/*256*/ "dsuperior", "esuperior", "isuperior", "lsuperior",
+ "msuperior", "nsuperior", "osuperior", "rsuperior",
+ "ssuperior", "tsuperior", "ff", "ffi",
+ "ffl", "parenleftinferior","parenrightinferior","Circumflexsmall",
+/*272*/ "hyphensuperior","Gravesmall", "Asmall", "Bsmall",
+ "Csmall", "Dsmall", "Esmall", "Fsmall",
+ "Gsmall", "Hsmall", "Ismall", "Jsmall",
+ "Ksmall", "Lsmall", "Msmall", "Nsmall",
+/*288*/ "Osmall", "Psmall", "Qsmall", "Rsmall",
+ "Ssmall", "Tsmall", "Usmall", "Vsmall",
+ "Wsmall", "Xsmall", "Ysmall", "Zsmall",
+ "colonmonetary", "onefitted", "rupia", "Tildesmall",
+/*304*/ "exclamdownsmall","centoldstyle", "Lslashsmall", "Scaronsmall",
+ "Zcaronsmall", "Dieresissmall", "Brevesmall", "Caronsmall",
+ "Dotaccentsmall", "Macronsmall", "figuredash", "hypheninferior",
+ "Ogoneksmall", "Ringsmall", "Cedillasmall", "questiondownsmall",
+/*320*/ "oneeight", "threeeights", "fiveeights", "seveneights",
+ "onethird", "twothirds", "zerosuperior", "foursuperior",
+ "fivesuperior", "sixsuperior", "sevensuperior", "eightsuperior",
+ "ninesuperior", "zeroinferior", "oneinferior", "twoinferior",
+/*336*/ "threeinferior","fourinferior", "fiveinferior", "sixinferior",
+ "seveninferior", "eightinferior", "nineinferior", "centinferior",
+ "dollarinferior", "periodinferior", "commainferior", "Agravesmall",
+ "Aacutesmall", "Acircumflexsmall", "Atildesmall", "Adieresissmall",
+/*352*/ "Aringsmall", "AEsmall", "Ccedillasmall", "Egravesmall",
+ "Eacutesmall", "Ecircumflexsmall", "Edieresissmall", "Igravesmall",
+ "Iacutesmall", "Icircumflexsmall", "Idieresissmall", "Ethsmall",
+ "Ntildesmall", "Ogravesmall", "Oacutesmall", "Ocircumflexsmall",
+/*368*/ "Otildesmall", "Odieressissmall", "OEsmall", "Oslashsmall",
+ "Ugravesmall", "Uacutesmall", "Ucircumflexsmall", "Udieresissmall",
+ "Yacutesmall", "Thornsmall", "Ydieresissmall", "001.000",
+ "001.001", "001.002", "001.003", "Black",
+/*384*/ "Bold", "Book", "Light", "Medium",
+ "Regular", "Roman", "Semibold"
+};
+
+// TOP DICT keywords (also covers PRIV DICT keywords)
+static const char* 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)
+static const char* 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"
+};
+
+static const char* 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> maFontBBox;
+ std::vector<ValType> maFontMatrix;
+
+ int mnFontNameSID;
+ int mnFullNameSID;
+};
+
+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;
+ ValType aCharWidth;
+};
+
+
+class CffSubsetterContext
+: 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 CffSubsetterContext( const U8* pBasePtr, int nBaseLen);
+
+ bool initialCffRead();
+ void emitAsType1( class Type1Emitter&,
+ const sal_GlyphId* pGlyphIds, const U8* pEncoding,
+ sal_Int32* pGlyphWidths, int nGlyphCount, FontSubsetInfo& );
+
+private:
+ void convertCharStrings(const sal_GlyphId* pGlyphIds, int nGlyphCount,
+ std::vector<CharString>& rCharStrings);
+ int convert2Type1Ops( CffLocal*, const U8* pType2Ops, int nType2Len, U8* pType1Ops);
+ void convertOneTypeOp();
+ void convertOneTypeEsc();
+ void 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);
+ void seekIndexEnd( int nIndexBase);
+
+ CffLocal maCffLocal[256];
+ CffLocal* mpCffLocal;
+
+ void readDictOp();
+ RealType readRealVal();
+ const char* getString( int nStringID);
+ int getFDSelect( int nGlyphIndex) const;
+ int getGlyphSID( int nGlyphIndex) const;
+ const char* 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
+ void 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;
+};
+
+}
+
+CffSubsetterContext::CffSubsetterContext( 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 CffSubsetterContext::popInt()
+{
+ const ValType aVal = popVal();
+ const int nInt = static_cast<int>(aVal);
+ assert( nInt == aVal);
+ return nInt;
+}
+
+inline void CffSubsetterContext::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;
+ }
+}
+
+void CffSubsetterContext::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;
+
+ // copy the remaining values to the hint arrays
+ // assert( (mnStackIdx & 1) == 0); // depends on called subrs
+ if( mnStackIdx & 1) --mnStackIdx;//#######
+ // TODO: if( !bSubr) assert( mnStackIdx >= 2);
+
+ assert( (mnHintSize + mnStackIdx) <= 2*NMAXHINTS);
+
+ 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;
+}
+
+void CffSubsetterContext::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", "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: maFontBBox.clear(); 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: maFontBBox.push_back( nVal); 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: mnFullNameSID = nInt; break; // "FullName"
+ case 3: break; // "FamilyName"
+ case 938: mnFontNameSID = nInt; 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);
+ }
+}
+
+void CffSubsetterContext::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 CffSubsetterContext::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 CffSubsetterContext::writeTypeOp( int nTypeOp)
+{
+ *(mpWritePtr++) = static_cast<U8>(nTypeOp);
+}
+
+inline void CffSubsetterContext::writeTypeEsc( int nTypeEsc)
+{
+ *(mpWritePtr++) = TYPE1OP::T1ESC;
+ *(mpWritePtr++) = static_cast<U8>(nTypeEsc);
+}
+
+void CffSubsetterContext::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 CffSubsetterContext::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 CffSubsetterContext::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 );
+}
+
+void CffSubsetterContext::convertOneTypeOp()
+{
+ const int nType2Op = *(mpReadPtr++);
+
+ int i, nInt; // prevent WAE for declarations inside switch cases
+ // convert each T2op
+ switch( nType2Op) {
+ case TYPE2OP::T2ESC:
+ convertOneTypeEsc();
+ break;
+ case TYPE2OP::HSTEM:
+ case TYPE2OP::VSTEM:
+ addHints( nType2Op == TYPE2OP::VSTEM );
+ 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:
+ addHints( nType2Op == TYPE2OP::VSTEMHM);
+ break;
+ case TYPE2OP::CNTRMASK:
+ // TODO: replace cntrmask with vstem3/hstem3
+ addHints( true);
+ {
+ 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:
+ addHints( true);
+ {
+ 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);
+ callType2Subr( bGlobal, nInt);
+ }
+ break;
+ case TYPE2OP::RETURN:
+ // TODO: check that we are in a subroutine
+ return;
+ 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);
+ assert(false && "TODO?");
+ }
+ break;
+ }
+}
+
+void CffSubsetterContext::convertOneTypeEsc()
+{
+ const int nType2Esc = *(mpReadPtr++);
+ ValType* pTop = &mnValStack[ mnStackIdx-1];
+ // convert each T2op
+ switch( nType2Esc) {
+ case TYPE2OP::AND:
+ assert( mnStackIdx >= 2 );
+ pTop[0] = static_cast<ValType>(static_cast<int>(pTop[0]) & static_cast<int>(pTop[-1]));
+ --mnStackIdx;
+ break;
+ case TYPE2OP::OR:
+ assert( mnStackIdx >= 2 );
+ pTop[0] = static_cast<ValType>(static_cast<int>(pTop[0]) | static_cast<int>(pTop[-1]));
+ --mnStackIdx;
+ break;
+ case TYPE2OP::NOT:
+ assert( mnStackIdx >= 1 );
+ pTop[0] = ValType(pTop[0] == 0);
+ break;
+ case TYPE2OP::ABS:
+ assert( mnStackIdx >= 1 );
+ if( pTop[0] >= 0)
+ break;
+ [[fallthrough]];
+ case TYPE2OP::NEG:
+ assert( mnStackIdx >= 1 );
+ pTop[0] = -pTop[0];
+ break;
+ case TYPE2OP::ADD:
+ assert( mnStackIdx >= 2 );
+ pTop[0] += pTop[-1];
+ --mnStackIdx;
+ break;
+ case TYPE2OP::SUB:
+ assert( mnStackIdx >= 2 );
+ pTop[0] -= pTop[-1];
+ --mnStackIdx;
+ break;
+ case TYPE2OP::MUL:
+ assert( mnStackIdx >= 2 );
+ if( pTop[-1])
+ pTop[0] *= pTop[-1];
+ --mnStackIdx;
+ break;
+ case TYPE2OP::DIV:
+ assert( mnStackIdx >= 2 );
+ if( pTop[-1])
+ pTop[0] /= pTop[-1];
+ --mnStackIdx;
+ break;
+ case TYPE2OP::EQ:
+ assert( mnStackIdx >= 2 );
+ pTop[0] = ValType(pTop[0] == pTop[-1]);
+ --mnStackIdx;
+ break;
+ case TYPE2OP::DROP:
+ assert( mnStackIdx >= 1 );
+ --mnStackIdx;
+ break;
+ case TYPE2OP::PUT: {
+ assert( mnStackIdx >= 2 );
+ const int nIdx = static_cast<int>(pTop[0]);
+ assert( nIdx >= 0 );
+ assert( nIdx < NMAXTRANS );
+ mnTransVals[ nIdx] = pTop[-1];
+ mnStackIdx -= 2;
+ break;
+ }
+ case TYPE2OP::GET: {
+ assert( mnStackIdx >= 1 );
+ const int nIdx = static_cast<int>(pTop[0]);
+ assert( nIdx >= 0 );
+ assert( nIdx < NMAXTRANS );
+ pTop[0] = mnTransVals[ nIdx ];
+ break;
+ }
+ case TYPE2OP::IFELSE: {
+ assert( mnStackIdx >= 4 );
+ 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:
+ assert( mnStackIdx >= 1 );
+ pTop[+1] = pTop[0];
+ ++mnStackIdx;
+ break;
+ case TYPE2OP::EXCH: {
+ assert( mnStackIdx >= 2 );
+ const ValType nVal = pTop[0];
+ pTop[0] = pTop[-1];
+ pTop[-1] = nVal;
+ break;
+ }
+ case TYPE2OP::INDEX: {
+ assert( mnStackIdx >= 1 );
+ const int nVal = static_cast<int>(pTop[0]);
+ assert( nVal >= 0 );
+ assert( nVal < mnStackIdx-1 );
+ pTop[0] = pTop[-1-nVal];
+ break;
+ }
+ case TYPE2OP::ROLL: {
+ assert( mnStackIdx >= 1 );
+ const int nNum = static_cast<int>(pTop[0]);
+ assert( nNum >= 0);
+ assert( nNum < mnStackIdx-2 );
+ (void)nNum; // TODO: implement
+ // TODO: implement: const int nOfs = static_cast<int>(pTop[-1]);
+ mnStackIdx -= 2;
+ break;
+ }
+ case TYPE2OP::HFLEX1: {
+ assert( mnStackIdx == 9);
+
+ 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: {
+ assert( mnStackIdx == 7);
+ 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: {
+ assert( mnStackIdx == 13 );
+ 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: {
+ assert( mnStackIdx == 11 );
+ // 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", "unhandled type2esc " << nType2Esc);
+ assert( false);
+ break;
+ }
+}
+
+void CffSubsetterContext::callType2Subr( bool bGlobal, int nSubrNumber)
+{
+ const U8* const pOldReadPtr = mpReadPtr;
+ const U8* const pOldReadEnd = mpReadEnd;
+
+ if( bGlobal ) {
+ nSubrNumber += mnGlobalSubrBias;
+ seekIndexData( mnGlobalSubrBase, nSubrNumber);
+ } else {
+ nSubrNumber += mpCffLocal->mnLocalSubrBias;
+ seekIndexData( mpCffLocal->mnLocalSubrBase, nSubrNumber);
+ }
+
+ while( mpReadPtr < mpReadEnd)
+ convertOneTypeOp();
+
+ mpReadPtr = pOldReadPtr;
+ mpReadEnd = pOldReadEnd;
+}
+
+int CffSubsetterContext::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: aSubsetterContext.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)
+ convertOneTypeOp();
+ 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 CffSubsetterContext::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 CffSubsetterContext::seekIndexData( int nIndexBase, int nDataIndex)
+{
+ assert( (nIndexBase > 0) && (mpBasePtr + nIndexBase + 3 <= mpBaseEnd));
+ 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", "\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);
+ assert( nOfs1 >= 0);
+ assert( nOfs2 >= nOfs1);
+ assert( mpReadPtr <= mpBaseEnd);
+ assert( mpReadEnd <= mpBaseEnd);
+ return (nOfs2 - nOfs1);
+}
+
+// skip over a CFF/CID index table
+void CffSubsetterContext::seekIndexEnd( int nIndexBase)
+{
+ assert( (nIndexBase > 0) && (mpBasePtr + nIndexBase + 3 <= mpBaseEnd));
+ mpReadPtr = mpBasePtr + nIndexBase;
+ const int nDataCount = (mpReadPtr[0]<<8) + mpReadPtr[1];
+ const int nDataOfsSz = mpReadPtr[2];
+ mpReadPtr += 3 + nDataOfsSz * nDataCount;
+ assert( mpReadPtr <= mpBaseEnd);
+ int nEndOfs = 0;
+ switch( nDataOfsSz) {
+ default: SAL_WARN("vcl.fonts", "\tINVALID nDataOfsSz=" << nDataOfsSz); return;
+ 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;
+ assert( nEndOfs >= 0);
+ assert( mpReadEnd <= mpBaseEnd);
+}
+
+// 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)
+, mnFontNameSID( 0)
+, mnFullNameSID( 0)
+{
+}
+
+bool CffSubsetterContext::initialCffRead()
+{
+ // get the CFFHeader
+ mpReadPtr = mpBasePtr;
+ const U8 nVerMajor = *(mpReadPtr++);
+ const U8 nVerMinor = *(mpReadPtr++);
+ const U8 nHeaderSize = *(mpReadPtr++);
+ const U8 nOffsetSize = *(mpReadPtr++);
+ // TODO: is the version number useful for anything else?
+ assert( (nVerMajor == 1) && (nVerMinor == 0));
+ (void)(nVerMajor + nVerMinor + nOffsetSize); // avoid compiler warnings
+
+ // prepare access to the NameIndex
+ mnNameIdxBase = nHeaderSize;
+ mpReadPtr = mpBasePtr + nHeaderSize;
+ seekIndexEnd( mnNameIdxBase);
+
+ // 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) {
+ seekIndexData( nTopDictBase, i);
+ while( mpReadPtr < mpReadEnd)
+ readDictOp();
+ assert( mpReadPtr == mpReadEnd);
+ }
+ }
+
+ // prepare access to the String index
+ mnStringIdxBase = getReadOfs();
+ seekIndexEnd( mnStringIdxBase);
+
+ // 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) {
+// assert( mnFontDictBase == tellRel());
+ mpReadPtr = mpBasePtr + mnFontDictBase;
+ mnFDAryCount = (mpReadPtr[0]<<8) + mpReadPtr[1];
+ if (o3tl::make_unsigned(mnFDAryCount) >= SAL_N_ELEMENTS(maCffLocal))
+ {
+ SAL_INFO("vcl.fonts", "CffSubsetterContext: 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];
+ seekIndexData( mnFontDictBase, i);
+ while( mpReadPtr < mpReadEnd)
+ readDictOp();
+ assert( mpReadPtr == mpReadEnd);
+ }
+ }
+
+ 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) {
+ assert( mpCffLocal->mnPrivDictSize > 0);
+ // get the PrivDict data
+ mpReadPtr = mpBasePtr + mpCffLocal->mnPrivDictBase;
+ mpReadEnd = mpReadPtr + mpCffLocal->mnPrivDictSize;
+ assert( mpReadEnd <= mpBaseEnd);
+ // 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
+const char* CffSubsetterContext::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
+ const U8* pReadPtr = mpReadPtr;
+ const U8* pReadEnd = mpReadEnd;
+ nStringID -= nStdStrings;
+ int nLen = seekIndexData( mnStringIdxBase, nStringID);
+ // assert( nLen >= 0);
+ // TODO: just return the undecorated name
+ // TODO: get rid of static char buffer
+ static char aNameBuf[ 2560];
+ if( nLen < 0) {
+ sprintf( aNameBuf, "name[%d].notfound!", nStringID);
+ } else {
+ const int nMaxLen = sizeof(aNameBuf) - 1;
+ if( nLen >= nMaxLen)
+ nLen = nMaxLen;
+ for( int i = 0; i < nLen; ++i)
+ aNameBuf[i] = *(mpReadPtr++);
+ aNameBuf[ nLen] = '\0';
+ }
+ mpReadPtr = pReadPtr;
+ mpReadEnd = pReadEnd;
+ return aNameBuf;
+}
+
+// access a CID's FDSelect table
+int CffSubsetterContext::getFDSelect( int nGlyphIndex) const
+{
+ assert( nGlyphIndex >= 0);
+ assert( nGlyphIndex < mnCharStrCount);
+ 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];
+ assert( nRangeCount > 0);
+ assert( nRangeCount <= mnCharStrCount);
+ U16 nPrev = (pReadPtr[2]<<8) + pReadPtr[3];
+ assert( nPrev == 0);
+ (void)nPrev;
+ 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];
+ assert( nPrev < nNext);
+ if( nGlyphIndex < nNext)
+ return nFDIdx;
+ pReadPtr += 3;
+ nPrev = nNext;
+ }
+ } break;
+ default: // invalid FDselect format
+ SAL_WARN("vcl.fonts", "invalid CFF.FdselType=" << nFDSelFormat);
+ break;
+ }
+
+ assert( false);
+ return -1;
+}
+
+int CffSubsetterContext::getGlyphSID( int nGlyphIndex) const
+{
+ if( nGlyphIndex == 0)
+ return 0; // ".notdef"
+ assert( nGlyphIndex >= 0);
+ assert( nGlyphIndex < mnCharStrCount);
+ 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", "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
+const char* CffSubsetterContext::getGlyphName( int nGlyphIndex)
+{
+ // the first glyph is always the .notdef glyph
+ const char* pGlyphName = ".notdef";
+ if( nGlyphIndex == 0)
+ return pGlyphName;
+
+ // prepare a result buffer
+ // TODO: get rid of static buffer
+ static char aDefaultGlyphName[64];
+ pGlyphName = aDefaultGlyphName;
+
+ // get the glyph specific name
+ const int nSID = getGlyphSID( nGlyphIndex);
+ if( nSID < 0) // default glyph name
+ sprintf( aDefaultGlyphName, "gly%03d", nGlyphIndex);
+ else if( mbCIDFont) // default glyph name in CIDs
+ sprintf( aDefaultGlyphName, "cid%03d", nSID);
+ else { // glyph name from string table
+ const char* pSidName = getString( nSID);
+ // check validity of glyph name
+ if( pSidName) {
+ const char* p = pSidName;
+ while( (*p >= '0') && (*p <= 'z')) ++p;
+ if( (p >= pSidName+1) && (*p == '\0'))
+ pGlyphName = pSidName;
+ }
+ // if needed invent a fallback name
+ if( pGlyphName != pSidName)
+ sprintf( aDefaultGlyphName, "bad%03d", nSID);
+ }
+
+ return pGlyphName;
+}
+
+bool CffSubsetterContext::getBaseAccent(ValType aBase, ValType aAccent, int* nBase, int* nAccent)
+{
+ bool bBase = false, bAccent = false;
+ for (int i = 0; i < mnCharStrCount; i++)
+ {
+ const char* 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( FILE* pOutFile, bool bPfbSubset);
+ ~Type1Emitter();
+ void setSubsetName( const char* );
+
+ size_t emitRawData( const char* pData, size_t nLength) const;
+ void emitAllRaw();
+ void emitAllHex();
+ 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:
+ FILE* mpFileOut;
+ char maBuffer[MAX_T1OPS_SIZE]; // TODO: dynamic allocation
+ unsigned mnEECryptR;
+public:
+ char* mpPtr;
+
+ char maSubsetName[256];
+ bool mbPfbSubset;
+ int mnHexLineCol;
+};
+
+}
+
+Type1Emitter::Type1Emitter( FILE* pOutFile, bool bPfbSubset)
+: mpFileOut( pOutFile)
+, maBuffer{}
+, mnEECryptR( 55665) // default eexec seed, TODO: mnEECryptSeed
+, mpPtr( maBuffer)
+, mbPfbSubset( bPfbSubset)
+, mnHexLineCol( 0)
+{
+ maSubsetName[0] = '\0';
+}
+
+Type1Emitter::~Type1Emitter()
+{
+ if( !mpFileOut)
+ return;
+ mpFileOut = nullptr;
+}
+
+void Type1Emitter::setSubsetName( const char* pSubsetName)
+{
+ maSubsetName[0] = '\0';
+ if( pSubsetName)
+ strncpy( maSubsetName, pSubsetName, sizeof(maSubsetName) - 1);
+ maSubsetName[sizeof(maSubsetName)-1] = '\0';
+}
+
+int Type1Emitter::tellPos() const
+{
+ int nTellPos = ftell( mpFileOut);
+ 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 = ftell(mpFileOut);
+ if (nCurrPos < 0)
+ return;
+ if (fseek( mpFileOut, nTellPos, SEEK_SET) != 0)
+ return;
+ fwrite(cData, 1, sizeof(cData), mpFileOut);
+ (void)fseek(mpFileOut, nCurrPos, SEEK_SET);
+}
+
+inline size_t Type1Emitter::emitRawData(const char* pData, size_t nLength) const
+{
+ return fwrite( pData, 1, nLength, mpFileOut);
+}
+
+inline void Type1Emitter::emitAllRaw()
+{
+ // writeout raw data
+ assert( (mpPtr - maBuffer) < int(sizeof(maBuffer)));
+ emitRawData( maBuffer, mpPtr - maBuffer);
+ // reset the raw buffer
+ mpPtr = maBuffer;
+}
+
+inline void Type1Emitter::emitAllHex()
+{
+ assert( (mpPtr - maBuffer) < int(sizeof(maBuffer)));
+ for( const char* p = maBuffer; p < mpPtr;) {
+ // convert binary chunk to hex
+ char aHexBuf[0x4000];
+ char* pOut = aHexBuf;
+ while( (p < mpPtr) && (pOut < aHexBuf+sizeof(aHexBuf)-4)) {
+ // convert each byte to hex
+ char cNibble = (static_cast<unsigned char>(*p) >> 4) & 0x0F;
+ cNibble += (cNibble < 10) ? '0' : 'A'-10;
+ *(pOut++) = cNibble;
+ cNibble = *(p++) & 0x0F;
+ cNibble += (cNibble < 10) ? '0' : 'A'-10;
+ *(pOut++) = cNibble;
+ // limit the line length
+ if( (++mnHexLineCol & 0x3F) == 0)
+ *(pOut++) = '\n';
+ }
+ // writeout hex-converted chunk
+ emitRawData( aHexBuf, pOut-aHexBuf);
+ }
+ // reset the raw buffer
+ mpPtr = maBuffer;
+}
+
+void Type1Emitter::emitAllCrypted()
+{
+ // apply t1crypt
+ for( char* p = maBuffer; p < mpPtr; ++p) {
+ *p ^= (mnEECryptR >> 8);
+ mnEECryptR = (*reinterpret_cast<U8*>(p) + mnEECryptR) * 52845 + 22719;
+ }
+
+ // emit the t1crypt result
+ if( mbPfbSubset)
+ emitAllRaw();
+ else
+ emitAllHex();
+}
+
+// #i110387# quick-and-dirty double->ascii conversion
+// needed because sprintf/ecvt/etc. alone are too localized (LC_NUMERIC)
+// also strip off trailing zeros in fraction while we are at it
+static int dbl2str( char* pOut, double fVal)
+{
+ const int nLen = psp::getValueOfDouble( pOut, fVal, 6);
+ return nLen;
+}
+
+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
+ mpPtr += sprintf( mpPtr, "%s", 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;
+ mpPtr += dbl2str( mpPtr, aVal);
+ *(mpPtr++) = ' ';
+ }
+ // emit the last value
+ mpPtr += dbl2str( mpPtr, aVal);
+ // emit the line tail
+ mpPtr += sprintf( mpPtr, "%s", pLineTail);
+}
+
+void CffSubsetterContext::convertCharStrings(const sal_GlyphId* pGlyphIds, int nGlyphCount,
+ std::vector<CharString>& rCharStrings)
+{
+ // 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[i];
+ assert((nCffGlyphId >= 0) && (nCffGlyphId < mnCharStrCount));
+
+ 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)
+ continue;
+ mpCffLocal = &maCffLocal[nFDSelect];
+
+ // convert the Type2op charstring to its Type1op counterpart
+ const int nT2Len = seekIndexData(mnCharStrBase, nCffGlyphId);
+ assert(nT2Len > 0);
+
+ CharString aCharString;
+ const int nT1Len = convert2Type1Ops(mpCffLocal, mpReadPtr, nT2Len, aCharString.aOps);
+ aCharString.nLen = nT1Len;
+ aCharString.nCffGlyphId = nCffGlyphId;
+ aCharString.aCharWidth = maCharWidth;
+
+ rCharStrings.push_back(aCharString);
+ }
+}
+
+void CffSubsetterContext::emitAsType1( Type1Emitter& rEmitter,
+ const sal_GlyphId* pReqGlyphIds, const U8* pReqEncoding,
+ sal_Int32* pGlyphWidths, int nGlyphCount, FontSubsetInfo& rFSInfo)
+{
+ // prepare some fontdirectory details
+ static const int nUniqueIdBase = 4100000; // using private-interchange UniqueIds
+ static int nUniqueId = nUniqueIdBase;
+ ++nUniqueId;
+
+ char* pFontName = rEmitter.maSubsetName;
+ if( !*pFontName ) {
+ if( mnFontNameSID) {
+ // get the fontname directly if available
+ strncpy( pFontName, getString( mnFontNameSID), sizeof(rEmitter.maSubsetName) - 1);
+ pFontName[sizeof(rEmitter.maSubsetName) - 1] = 0;
+ } else if( mnFullNameSID) {
+ // approximate fontname as fullname-whitespace
+ const char* pI = getString( mnFullNameSID);
+ char* pO = pFontName;
+ const char* pLimit = pFontName + sizeof(rEmitter.maSubsetName) - 1;
+ while( pO < pLimit) {
+ const char c = *(pI++);
+ if( c != ' ')
+ *(pO++) = c;
+ if( !c)
+ break;
+ }
+ *pO = '\0';
+ } else {
+ // fallback name of last resort
+ strncpy( pFontName, "DummyName", sizeof(rEmitter.maSubsetName));
+ }
+ }
+ const char* pFullName = pFontName;
+ const char* pFamilyName = pFontName;
+
+ char*& pOut = rEmitter.mpPtr; // convenience reference, TODO: cleanup
+
+ // create a PFB+Type1 header
+ if( rEmitter.mbPfbSubset ) {
+ static const char aPfbHeader[] = "\x80\x01\x00\x00\x00\x00";
+ rEmitter.emitRawData( aPfbHeader, sizeof(aPfbHeader)-1);
+ }
+
+ pOut += sprintf( pOut, "%%!FontType1-1.0: %s 001.003\n", rEmitter.maSubsetName);
+ // emit TOPDICT
+ pOut += sprintf( pOut,
+ "11 dict begin\n" // TODO: dynamic entry count for TOPDICT
+ "/FontType 1 def\n"
+ "/PaintType 0 def\n");
+ pOut += sprintf( pOut, "/FontName /%s def\n", rEmitter.maSubsetName);
+ pOut += sprintf( pOut, "/UniqueID %d def\n", nUniqueId);
+ // emit FontMatrix
+ if( maFontMatrix.size() == 6)
+ rEmitter.emitValVector( "/FontMatrix [", "]readonly def\n", maFontMatrix);
+ else // emit default FontMatrix if needed
+ pOut += sprintf( pOut, "/FontMatrix [0.001 0 0 0.001 0 0]readonly def\n");
+ // emit FontBBox
+ auto aFontBBox = maFontBBox;
+ if (aFontBBox.size() != 4)
+ aFontBBox = { 0, 0, 999, 999 }; // emit default FontBBox if needed
+ rEmitter.emitValVector( "/FontBBox {", "}readonly def\n", aFontBBox);
+ // emit FONTINFO into TOPDICT
+ pOut += sprintf( pOut,
+ "/FontInfo 2 dict dup begin\n" // TODO: check fontinfo entry count
+ " /FullName (%s) readonly def\n"
+ " /FamilyName (%s) readonly def\n"
+ "end readonly def\n",
+ pFullName, pFamilyName);
+
+ pOut += sprintf( pOut,
+ "/Encoding 256 array\n"
+ "0 1 255 {1 index exch /.notdef put} for\n");
+ for( int i = 1; (i < nGlyphCount) && (i < 256); ++i) {
+ const char* pGlyphName = getGlyphName( pReqGlyphIds[i]);
+ pOut += sprintf( pOut, "dup %d /%s put\n", pReqEncoding[i], pGlyphName);
+ }
+ pOut += sprintf( pOut, "readonly def\n");
+ pOut += sprintf( pOut,
+ // TODO: more topdict entries
+ "currentdict end\n"
+ "currentfile eexec\n");
+
+ // emit PFB header
+ rEmitter.emitAllRaw();
+ if( rEmitter.mbPfbSubset) {
+ // 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
+ pOut += sprintf( pOut,
+ "\110\104\125 "
+ "dup\n/Private %d 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?
+ nPrivEntryCount);
+
+ // emit blue hint related privdict entries
+ if( !mpCffLocal->maBlueValues.empty())
+ rEmitter.emitValVector( "/BlueValues [", "]ND\n", mpCffLocal->maBlueValues);
+ else
+ pOut += sprintf( pOut, "/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) {
+ pOut += sprintf( pOut, "/BlueScale ");
+ pOut += dbl2str( pOut, mpCffLocal->mfBlueScale);
+ pOut += sprintf( pOut, " def\n");
+ }
+ if( mpCffLocal->mfBlueShift) { // default BlueShift==7
+ pOut += sprintf( pOut, "/BlueShift ");
+ pOut += dbl2str( pOut, mpCffLocal->mfBlueShift);
+ pOut += sprintf( pOut, " def\n");
+ }
+ if( mpCffLocal->mfBlueFuzz) { // default BlueFuzz==1
+ pOut += sprintf( pOut, "/BlueFuzz ");
+ pOut += dbl2str( pOut, mpCffLocal->mfBlueFuzz);
+ pOut += sprintf( pOut, " def\n");
+ }
+
+ // emit stem hint related privdict entries
+ if( mpCffLocal->maStemStdHW) {
+ pOut += sprintf( pOut, "/StdHW [");
+ pOut += dbl2str( pOut, mpCffLocal->maStemStdHW);
+ pOut += sprintf( pOut, "] def\n");
+ }
+ if( mpCffLocal->maStemStdVW) {
+ pOut += sprintf( pOut, "/StdVW [");
+ pOut += dbl2str( pOut, mpCffLocal->maStemStdVW);
+ pOut += sprintf( pOut, "] def\n");
+ }
+ rEmitter.emitValVector( "/StemSnapH [", "]ND\n", mpCffLocal->maStemSnapH);
+ rEmitter.emitValVector( "/StemSnapV [", "]ND\n", mpCffLocal->maStemSnapV);
+
+ // emit other hints
+ if( mpCffLocal->mbForceBold)
+ pOut += sprintf( pOut, "/ForceBold true def\n");
+ if( mpCffLocal->mnLangGroup != 0)
+ pOut += sprintf( pOut, "/LanguageGroup %d def\n", mpCffLocal->mnLangGroup);
+ if( mpCffLocal->mnLangGroup == 1) // compatibility with ancient printers
+ pOut += sprintf( pOut, "/RndStemUp false def\n");
+ if( mpCffLocal->mfExpFactor) {
+ pOut += sprintf( pOut, "/ExpansionFactor ");
+ pOut += dbl2str( pOut, mpCffLocal->mfExpFactor);
+ pOut += sprintf( pOut, " def\n");
+ }
+
+ // emit remaining privdict entries
+ pOut += sprintf( pOut, "/UniqueID %d def\n", nUniqueId);
+ // TODO?: more privdict entries?
+
+ static const char aOtherSubrs[] =
+ "/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";
+ memcpy( pOut, aOtherSubrs, sizeof(aOtherSubrs)-1);
+ pOut += sizeof(aOtherSubrs)-1;
+
+ // emit used GlobalSubr charstrings
+ // these are the just the default subrs
+ // TODO: do we need them as the flex hints are resolved differently?
+ static const char aSubrs[] =
+ "/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";
+ memcpy( pOut, aSubrs, sizeof(aSubrs)-1);
+ pOut += sizeof(aSubrs)-1;
+
+ // TODO: emit more GlobalSubr charstrings?
+ // TODO: emit used LocalSubr charstrings?
+
+ // emit the CharStrings for the requested glyphs
+ std::vector<CharString> aCharStrings;
+ mbDoSeac = true;
+ convertCharStrings(pReqGlyphIds, nGlyphCount, aCharStrings);
+
+ // The previous convertCharStrings might collect extra glyphs used in seac
+ // operator, convert them as well
+ if (!maExtraGlyphIds.empty())
+ {
+ mbDoSeac = false;
+ convertCharStrings(maExtraGlyphIds.data(), maExtraGlyphIds.size(), aCharStrings);
+ }
+ pOut += sprintf( pOut,
+ "2 index /CharStrings %zu dict dup begin\n", aCharStrings.size());
+ rEmitter.emitAllCrypted();
+ for (size_t i = 0; i < aCharStrings.size(); i++)
+ {
+ const auto& rCharString = aCharStrings[i];
+ // get the glyph name
+ const char* pGlyphName = getGlyphName(rCharString.nCffGlyphId);
+ // emit the encrypted Type1op charstring
+ pOut += sprintf( pOut, "/%s %d RD ", pGlyphName, rCharString.nLen);
+ memcpy( pOut, rCharString.aOps, rCharString.nLen);
+ pOut += rCharString.nLen;
+ pOut += sprintf( pOut, " ND\n");
+ rEmitter.emitAllCrypted();
+ // provide individual glyphwidths if requested
+ if( pGlyphWidths ) {
+ ValType aCharWidth = rCharString.aCharWidth;
+ if( maFontMatrix.size() >= 4)
+ aCharWidth *= 1000.0F * maFontMatrix[0];
+ pGlyphWidths[i] = static_cast<sal_Int32>(aCharWidth);
+ }
+ }
+ pOut += sprintf( pOut, "end end\nreadonly put\nput\n");
+ pOut += sprintf( pOut, "dup/FontName get exch definefont pop\n");
+ pOut += sprintf( pOut, "mark currentfile closefile\n");
+ rEmitter.emitAllCrypted();
+
+ // mark stop of eexec encryption
+ if( rEmitter.mbPfbSubset) {
+ 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";
+ if( rEmitter.mbPfbSubset)
+ rEmitter.emitRawData( aPfxFooter, sizeof(aPfxFooter)-1);
+ else
+ rEmitter.emitRawData( aPfxFooter+6, sizeof(aPfxFooter)-9);
+
+ // provide details to the subset requesters, TODO: move into own method?
+ // note: Top and Bottom are flipped between Type1 and VCL
+ // note: the rest of VCL expects the details below to be scaled like for an emUnits==1000 font
+ ValType fXFactor = 1.0;
+ ValType fYFactor = 1.0;
+ if( maFontMatrix.size() >= 4) {
+ fXFactor = 1000.0F * maFontMatrix[0];
+ fYFactor = 1000.0F * maFontMatrix[3];
+ }
+ rFSInfo.m_aFontBBox = { Point(static_cast<sal_Int32>(aFontBBox[0] * fXFactor),
+ static_cast<sal_Int32>(aFontBBox[1] * fYFactor)),
+ Point(static_cast<sal_Int32>(aFontBBox[2] * fXFactor),
+ static_cast<sal_Int32>(aFontBBox[3] * fYFactor)) };
+ // PDF-Spec says the values below mean the ink bounds!
+ // TODO: use better approximations for these ink bounds
+ rFSInfo.m_nAscent = +rFSInfo.m_aFontBBox.Bottom(); // for capital letters
+ rFSInfo.m_nDescent = -rFSInfo.m_aFontBBox.Top(); // for all letters
+ rFSInfo.m_nCapHeight = rFSInfo.m_nAscent; // for top-flat capital letters
+
+ rFSInfo.m_nFontType = rEmitter.mbPfbSubset ? FontType::TYPE1_PFB : FontType::TYPE1_PFA;
+ rFSInfo.m_aPSName = OUString( rEmitter.maSubsetName, strlen(rEmitter.maSubsetName), RTL_TEXTENCODING_UTF8 );
+}
+
+bool FontSubsetInfo::CreateFontSubsetFromCff( sal_Int32* pOutGlyphWidths )
+{
+ CffSubsetterContext aCff( mpInFontBytes, mnInByteLength);
+ bool bRC = aCff.initialCffRead();
+ if (!bRC)
+ return bRC;
+
+ // emit Type1 subset from the CFF input
+ // TODO: also support CFF->CFF subsetting (when PDF-export and PS-printing need it)
+ const bool bPfbSubset(mnReqFontTypeMask & FontType::TYPE1_PFB);
+ Type1Emitter aType1Emitter( mpOutFile, bPfbSubset);
+ aType1Emitter.setSubsetName( mpReqFontName);
+ aCff.emitAsType1( aType1Emitter,
+ mpReqGlyphIds, mpReqEncodedIds,
+ pOutGlyphWidths, mnReqGlyphCount, *this);
+ return true;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 00:50:49 +0000