#include <string.h>
#include <ctype.h>
#include "gmem.h"
+#include "GHash.h"
#include "Error.h"
#include "GlobalParams.h"
#include "CharCodeToUnicode.h"
static inline char *nextLine(char *line, char *end) {
while (line < end && *line != '\n' && *line != '\r')
++line;
- while (line < end && *line == '\n' || *line == '\r')
+ while (line < end && (*line == '\n' || *line == '\r'))
++line;
return line;
}
c = file[pos++];
nLeft = file[pos++];
for (j = 0; j <= nLeft && nCodes < nGlyphs; ++j) {
- if (encoding[c]) {
- gfree(encoding[c]);
+ if (c < 256) {
+ if (encoding[c]) {
+ gfree(encoding[c]);
+ }
+ encoding[c] = copyString(getString(glyphNames[nCodes], buf));
}
- encoding[c] = copyString(getString(glyphNames[nCodes], buf));
++nCodes;
++c;
}
(*outputFunc)(outputStream, buf, strlen(buf));
}
(*outputFunc)(outputStream, "\n", 1);
- (*outputFunc)(outputStream, "11 dict begin\n", 14);
+ // the dictionary needs room for 12 entries: the following 9, plus
+ // Private and CharStrings (in the eexec section) and FID (which is
+ // added by definefont)
+ (*outputFunc)(outputStream, "12 dict begin\n", 14);
(*outputFunc)(outputStream, "/FontInfo 10 dict dup begin\n", 28);
if (dict.version != 0) {
(*outputFunc)(outputStream, "/version (", 10);
eexecWrite("/RD {string currentfile exch readstring pop} executeonly def\n");
eexecWrite("/ND {noaccess def} executeonly def\n");
eexecWrite("/NP {noaccess put} executeonly def\n");
- eexecWrite("/MinFeature {16 16} ND\n");
+ eexecWrite("/MinFeature {16 16} def\n");
+ eexecWrite("/password 5839 def\n");
readPrivateDict(&privateDict, dict.privateOffset, dict.privateSize);
eexecWrite(privateDict.dictData->getCString());
defaultWidthX = privateDict.defaultWidthX;
nominalWidthXFP = privateDict.nominalWidthXFP;
// set up subroutines
- subrIdxPos = dict.privateOffset + privateDict.subrsOffset;
+ subrIdxPos = privateDict.subrsOffset;
i = getIndexLen(gsubrIdxPos);
gsubrBias = (i < 1240) ? 107 : (i < 33900) ? 1131 : 32768;
i = getIndexLen(subrIdxPos);
defaultWidthXFP = privateDicts[j].defaultWidthXFP;
nominalWidthX = privateDicts[j].nominalWidthX;
nominalWidthXFP = privateDicts[j].nominalWidthXFP;
- subrIdxPos = dict.privateOffset + privateDicts[j].subrsOffset;
+ subrIdxPos = privateDicts[j].subrsOffset;
k = getIndexLen(subrIdxPos);
subrBias = (k < 1240) ? 107 : (k < 33900) ? 1131 : 32768;
cvtGlyph(idxPos, idxLen, gTrue);
sprintf(buf, "dup %d /c%02x put\n", j, j);
(*outputFunc)(outputStream, buf, strlen(buf));
}
+ if (j < 256) {
+ sprintf(buf, "%d 1 255 { 1 index exch /.notdef put } for\n", j);
+ (*outputFunc)(outputStream, buf, strlen(buf));
+ }
(*outputFunc)(outputStream, "readonly def\n", 13);
(*outputFunc)(outputStream, "currentdict end\n", 16);
eexecWrite("/RD {string currentfile exch readstring pop} executeonly def\n");
eexecWrite("/ND {noaccess def} executeonly def\n");
eexecWrite("/NP {noaccess put} executeonly def\n");
- eexecWrite("/MinFeature {16 16} ND\n");
+ eexecWrite("/MinFeature {16 16} def\n");
+ eexecWrite("/password 5839 def\n");
eexecWrite(privateDicts[fd].dictData->getCString());
defaultWidthX = privateDicts[fd].defaultWidthX;
defaultWidthXFP = privateDicts[fd].defaultWidthXFP;
nominalWidthXFP = privateDicts[fd].nominalWidthXFP;
// set up the subroutines
- subrIdxPos = dict.privateOffset + privateDicts[fd].subrsOffset;
+ subrIdxPos = privateDicts[fd].subrsOffset;
j = getIndexLen(subrIdxPos);
subrBias = (j < 1240) ? 107 : (j < 33900) ? 1131 : 32768;
error(-1, "Got Type 1C InitialRandomSeed");
break;
case 0x0013:
- privateDict->subrsOffset = (int)op[0];
+ privateDict->subrsOffset = offset + (int)op[0];
break;
case 0x0014:
privateDict->defaultWidthX = op[0];
} else if (file[i] == 19) { // hintmask
// ignored
if (firstOp) {
- cvtGlyphWidth(nOps == 1);
+ cvtGlyphWidth(nOps & 1);
firstOp = gFalse;
}
if (nOps > 0) {
} else if (file[i] == 20) { // cntrmask
// ignored
if (firstOp) {
- cvtGlyphWidth(nOps == 1);
+ cvtGlyphWidth(nOps & 1);
firstOp = gFalse;
}
if (nOps > 0) {
}
nHints += nOps / 2;
break;
+ case 15: // (obsolete)
+ // this op is ignored, but we need the glyph width
+ if (firstOp) {
+ cvtGlyphWidth(nOps > 0);
+ firstOp = gFalse;
+ }
+ break;
case 18: // hstemhm
// ignored
if (firstOp) {
int Type1CFontFile::getIndexEnd(int indexPos) {
int n, offSize, idxStartPos;
- if (indexPos + 3 > len) {
+ if (indexPos < 0 || indexPos + 3 > len) {
return -1;
}
n = (int)getWord(indexPos, 2);
GBool required; // required by the TrueType spec?
};
+struct TTFontCmap {
+ int platform;
+ int encoding;
+ int offset;
+ int len;
+ int fmt;
+};
+
// TrueType tables to be embedded in Type 42 fonts.
// NB: the table names must be in alphabetical order here.
#define nT42Tables 11
"dmacron"
};
-enum T42FontIndexMode {
- t42FontModeUnicode,
- t42FontModeCharCode,
- t42FontModeCharCodeOffset,
- t42FontModeMacRoman
-};
-
struct TrueTypeLoca {
int idx;
int pos;
};
TrueTypeFontFile::TrueTypeFontFile(char *fileA, int lenA) {
- int pos, i, idx, n, length;
+ int pos, pos2, i, idx, n, length;
Guint size, startPos, endPos;
file = fileA;
len = lenA;
encoding = NULL;
+ cmaps = NULL;
+ nCmaps = 0;
// read table directory
nTables = getUShort(4);
// read the 'maxp' table
pos = seekTable("maxp");
nGlyphs = getUShort(pos + 4);
+
+ // read the 'cmap' table
+ if ((pos = seekTable("cmap")) >= 0) {
+ pos2 = pos + 2;
+ if ((nCmaps = getUShort(pos2)) > 0) {
+ pos2 += 2;
+ cmaps = (TTFontCmap *)gmalloc(nCmaps * sizeof(TTFontCmap));
+ for (i = 0; i < nCmaps; ++i) {
+ cmaps[i].platform = getUShort(pos2);
+ cmaps[i].encoding = getUShort(pos2 + 2);
+ cmaps[i].offset = pos + getULong(pos2 + 4);
+ pos2 += 8;
+ cmaps[i].fmt = getUShort(cmaps[i].offset);
+ cmaps[i].len = getUShort(cmaps[i].offset + 2);
+ }
+ }
+ }
}
TrueTypeFontFile::~TrueTypeFontFile() {
}
gfree(encoding);
}
+ if (cmaps) {
+ gfree(cmaps);
+ }
gfree(tableHdrs);
}
}
char **TrueTypeFontFile::getEncoding() {
- int cmap[256];
- int nCmaps, cmapPlatform, cmapEncoding, cmapFmt;
- int pos, i, j;
- Guint fmt;
- GString *s;
- int stringIdx, stringPos, n;
+ int i;
- if (encoding) {
- return encoding;
+ if (!encoding) {
+ encoding = (char **)gmalloc(256 * sizeof(char *));
+ for (i = 0; i < 256; ++i) {
+ encoding[i] = NULL;
+ }
}
+ return encoding;
+}
- //----- construct the (char code) -> (glyph idx) mapping
+int TrueTypeFontFile::getNumCmaps() {
+ return nCmaps;
+}
- // map everything to the missing glyph
- for (i = 0; i < 256; ++i) {
- cmap[i] = 0;
- }
+int TrueTypeFontFile::getCmapPlatform(int i) {
+ return cmaps[i].platform;
+}
- // look for the 'cmap' table
- if ((pos = seekTable("cmap")) >= 0) {
- nCmaps = getUShort(pos+2);
-
- // if the font has a Windows-symbol cmap, use it;
- // otherwise, use the first cmap in the table
- cmapPlatform = 0; // make gcc happy
- cmapEncoding = 0; // make gcc happy
- for (i = 0; i < nCmaps; ++i) {
- cmapPlatform = getUShort(pos + 4 + 8*i);
- cmapEncoding = getUShort(pos + 4 + 8*i + 2);
- if (cmapPlatform == 3 && cmapEncoding == 0) {
- break;
- }
- }
- if (i >= nCmaps) {
- i = 0;
- cmapPlatform = getUShort(pos + 4);
- cmapEncoding = getUShort(pos + 4 + 2);
- }
- pos += getULong(pos + 4 + 8*i + 4);
+int TrueTypeFontFile::getCmapEncoding(int i) {
+ return cmaps[i].encoding;
+}
- // read the cmap
- cmapFmt = getUShort(pos);
- for (i = 0; i < 256; ++i) {
- cmap[i] = getCmapEntry(cmapFmt, pos, i);
- }
- // Windows-symbol sometimes uses char codes 0xf000 - 0xf0ff, so
- // we use these to override 0x0000 - 0x00ff
- if (cmapPlatform == 3 && cmapEncoding == 0) {
- for (i = 0; i < 256; ++i) {
- if ((j = getCmapEntry(cmapFmt, pos, 0xf000 + i)) != 0) {
- cmap[i] = j;
- }
- }
+int TrueTypeFontFile::findCmap(int platform, int enc) {
+ int i;
+
+ for (i = 0; i < nCmaps; ++i) {
+ if (cmaps[i].platform == platform && cmaps[i].encoding == enc) {
+ return i;
}
}
+ return -1;
+}
+
+Gushort TrueTypeFontFile::mapCodeToGID(int i, int c) {
+ if (i < 0 || i >= nCmaps) {
+ return 0;
+ }
+ return (Gushort)getCmapEntry(cmaps[i].fmt, cmaps[i].offset, c);
+}
- //----- construct the (glyph idx) -> (glyph name) mapping
- //----- and compute the (char code) -> (glyph name) mapping
+GHash *TrueTypeFontFile::getNameToGID() {
+ GHash *nameToGID;
+ Guint fmt;
+ GString *s;
+ int stringIdx, stringPos, pos, i, j, n;
- encoding = (char **)gmalloc(256 * sizeof(char *));
- for (i = 0; i < 256; ++i) {
- encoding[i] = NULL;
+ if ((pos = seekTable("post")) < 0) {
+ return NULL;
}
- if ((pos = seekTable("post")) >= 0) {
- fmt = getULong(pos);
+ fmt = getULong(pos);
+ nameToGID = NULL;
- // Apple font
- if (fmt == 0x00010000) {
- for (i = 0; i < 256; ++i) {
- j = (cmap[i] < 258) ? cmap[i] : 0;
- encoding[i] = copyString(macGlyphNames[j]);
- }
+ // Apple font
+ if (fmt == 0x00010000) {
+ nameToGID = new GHash(gTrue);
+ for (i = 0; i < 258; ++i) {
+ nameToGID->add(new GString(macGlyphNames[i]), (void *)i);
+ }
- // Microsoft font
- } else if (fmt == 0x00020000) {
- stringIdx = 0;
- stringPos = pos + 34 + 2*nGlyphs;
- for (i = 0; i < 256; ++i) {
- if (cmap[i] < nGlyphs) {
- j = getUShort(pos + 34 + 2 * cmap[i]);
- if (j < 258) {
- encoding[i] = copyString(macGlyphNames[j]);
- } else {
- j -= 258;
- if (j != stringIdx) {
- for (stringIdx = 0, stringPos = pos + 34 + 2*nGlyphs;
- stringIdx < j;
- ++stringIdx, stringPos += 1 + getByte(stringPos)) ;
- }
- n = getByte(stringPos);
- if (stringPos >= 0 && stringPos + 1 + n <= len) {
- s = new GString(file + stringPos + 1, n);
- encoding[i] = copyString(s->getCString());
- delete s;
- } else {
- encoding[i] = copyString(macGlyphNames[0]);
- }
- ++stringIdx;
- stringPos += 1 + n;
- }
- } else {
- encoding[i] = copyString(macGlyphNames[0]);
+ // Microsoft font
+ } else if (fmt == 0x00020000) {
+ nameToGID = new GHash(gTrue);
+ n = getUShort(pos + 32);
+ if (n > nGlyphs) {
+ n = nGlyphs;
+ }
+ stringIdx = 0;
+ stringPos = pos + 34 + 2*nGlyphs;
+ for (i = 0; i < nGlyphs; ++i) {
+ j = getUShort(pos + 34 + 2*i);
+ if (j < 258) {
+ nameToGID->remove(macGlyphNames[j]);
+ nameToGID->add(new GString(macGlyphNames[j]), (void *)i);
+ } else {
+ j -= 258;
+ if (j != stringIdx) {
+ for (stringIdx = 0, stringPos = pos + 34 + 2*nGlyphs;
+ stringIdx < j;
+ ++stringIdx, stringPos += 1 + getByte(stringPos)) ;
}
- }
-
- // Apple subset
- } else if (fmt == 0x000280000) {
- for (i = 0; i < 256; ++i) {
- if (cmap[i] < nGlyphs) {
- j = i + getChar(pos + 32 + cmap[i]);
- } else {
- j = 0;
+ n = getByte(stringPos);
+ if (stringPos >= 0 && stringPos + 1 + n <= len) {
+ s = new GString(file + stringPos + 1, n);
+ nameToGID->remove(s);
+ nameToGID->add(s, (void *)i);
}
- encoding[i] = copyString(macGlyphNames[j]);
- }
-
- // Ugh, just assume the Apple glyph set
- } else {
- for (i = 0; i < 256; ++i) {
- j = (cmap[i] < 258) ? cmap[i] : 0;
- encoding[i] = copyString(macGlyphNames[j]);
+ ++stringIdx;
+ stringPos += 1 + n;
}
}
- // no "post" table: assume the Apple glyph set
- } else {
- for (i = 0; i < 256; ++i) {
- j = (cmap[i] < 258) ? cmap[i] : 0;
- encoding[i] = copyString(macGlyphNames[j]);
+ // Apple subset
+ } else if (fmt == 0x000280000) {
+ nameToGID = new GHash(gTrue);
+ for (i = 0; i < nGlyphs; ++i) {
+ j = getByte(pos + 32 + i);
+ if (j < 258) {
+ nameToGID->remove(macGlyphNames[j]);
+ nameToGID->add(new GString(macGlyphNames[j]), (void *)i);
+ }
}
}
- return encoding;
+ return nameToGID;
}
void TrueTypeFontFile::convertToType42(char *name, char **encodingA,
- CharCodeToUnicode *toUnicode,
GBool pdfFontHasEncoding,
- GBool pdfFontIsSymbolic,
+ Gushort *codeToGID,
FontFileOutputFunc outputFunc,
void *outputStream) {
char buf[512];
// write the guts of the dictionary
cvtEncoding(encodingA, pdfFontHasEncoding, outputFunc, outputStream);
- cvtCharStrings(encodingA, toUnicode, pdfFontHasEncoding, pdfFontIsSymbolic,
+ cvtCharStrings(encodingA, pdfFontHasEncoding, codeToGID,
outputFunc, outputStream);
cvtSfnts(outputFunc, outputStream, NULL);
}
void TrueTypeFontFile::cvtCharStrings(char **encodingA,
- CharCodeToUnicode *toUnicode,
GBool pdfFontHasEncoding,
- GBool pdfFontIsSymbolic,
+ Gushort *codeToGID,
FontFileOutputFunc outputFunc,
void *outputStream) {
- int unicodeCmap, macRomanCmap, msSymbolCmap;
- int nCmaps, cmapPlatform, cmapEncoding, cmapFmt, cmapOffset;
- T42FontIndexMode mode;
char *name;
char buf[64], buf2[16];
- Unicode u;
- int pos, i, j, k;
+ int i, k;
// always define '.notdef'
(*outputFunc)(outputStream, "/CharStrings 256 dict dup begin\n", 32);
(*outputFunc)(outputStream, "/.notdef 0 def\n", 15);
// if there's no 'cmap' table, punt
- if ((pos = seekTable("cmap")) < 0) {
- goto err;
- }
-
- // To match up with the Adobe-defined behaviour, we choose a cmap
- // like this:
- // 1. If the PDF font has an encoding:
- // 1a. If the TrueType font has a Microsoft Unicode cmap, use it,
- // and use the Unicode indexes, not the char codes.
- // 1b. If the PDF font is symbolic and the TrueType font has a
- // Microsoft Symbol cmap, use it, and use (0xf000 + char code).
- // 1c. If the TrueType font has a Macintosh Roman cmap, use it,
- // and reverse map the char names through MacRomanEncoding to
- // get char codes.
- // 2. If the PDF font does not have an encoding:
- // 2a. If the TrueType font has a Macintosh Roman cmap, use it,
- // and use char codes directly.
- // 2b. If the TrueType font has a Microsoft Symbol cmap, use it,
- // and use (0xf000 + char code).
- // 3. If none of these rules apply, use the first cmap and hope for
- // the best (this shouldn't happen).
- nCmaps = getUShort(pos+2);
- unicodeCmap = macRomanCmap = msSymbolCmap = -1;
- cmapOffset = 0;
- for (i = 0; i < nCmaps; ++i) {
- cmapPlatform = getUShort(pos + 4 + 8*i);
- cmapEncoding = getUShort(pos + 4 + 8*i + 2);
- if ((cmapPlatform == 3 && cmapEncoding == 1) || cmapPlatform == 0) {
- unicodeCmap = i;
- } else if (cmapPlatform == 1 && cmapEncoding == 0) {
- macRomanCmap = i;
- } else if (cmapPlatform == 3 && cmapEncoding == 0) {
- msSymbolCmap = i;
- }
- }
- i = 0;
- mode = t42FontModeCharCode;
- if (pdfFontHasEncoding) {
- if (unicodeCmap >= 0) {
- i = unicodeCmap;
- mode = t42FontModeUnicode;
- } else if (pdfFontIsSymbolic && msSymbolCmap >= 0) {
- i = msSymbolCmap;
- mode = t42FontModeCharCodeOffset;
- cmapOffset = 0xf000;
- } else if (macRomanCmap >= 0) {
- i = macRomanCmap;
- mode = t42FontModeMacRoman;
- }
- } else {
- if (macRomanCmap >= 0) {
- i = macRomanCmap;
- mode = t42FontModeCharCode;
- } else if (msSymbolCmap >= 0) {
- i = msSymbolCmap;
- mode = t42FontModeCharCodeOffset;
- cmapOffset = 0xf000;
- }
- }
- cmapPlatform = getUShort(pos + 4 + 8*i);
- cmapEncoding = getUShort(pos + 4 + 8*i + 2);
- pos += getULong(pos + 4 + 8*i + 4);
- cmapFmt = getUShort(pos);
- if (cmapFmt != 0 && cmapFmt != 4 && cmapFmt != 6) {
- error(-1, "Unimplemented cmap format (%d) in TrueType font file",
- cmapFmt);
+ if (nCmaps == 0) {
goto err;
}
// map char name to glyph index:
// 1. use encoding to map name to char code
- // 2. use cmap to map char code to glyph index
+ // 2. use codeToGID to map char code to glyph index
// N.B. We do this in reverse order because font subsets can have
// weird encodings that use the same character name twice, and
// the first definition is probably the one we want.
name = buf2;
}
if (name && strcmp(name, ".notdef")) {
- switch (mode) {
- case t42FontModeUnicode:
- toUnicode->mapToUnicode((CharCode)i, &u, 1);
- k = getCmapEntry(cmapFmt, pos, (int)u);
- break;
- case t42FontModeCharCode:
- k = getCmapEntry(cmapFmt, pos, i);
- break;
- case t42FontModeCharCodeOffset:
- if ((k = getCmapEntry(cmapFmt, pos, cmapOffset + i)) == 0) {
- k = getCmapEntry(cmapFmt, pos, i);
- }
- break;
- case t42FontModeMacRoman:
- j = globalParams->getMacRomanCharCode(name);
- k = getCmapEntry(cmapFmt, pos, j);
- break;
- }
+ k = codeToGID[i];
// note: Distiller (maybe Adobe's PS interpreter in general)
// doesn't like TrueType fonts that have CharStrings entries
// which point to nonexistent glyphs, hence the (k < nGlyphs)
TrueTypeLoca *origLocaTable;
char *locaTable;
int length, glyfLength;
- Guint t, pos, pos2;
+ Guint t, pos, pos2, pos3;
int i, j, k;
// check for missing/broken tables
haveName = seekTable("name") >= 0;
havePost = seekTable("post") >= 0;
unsortedLoca = gFalse;
- pos = 0;
+ pos = seekTable("loca");
+ pos2 = 0;
for (i = 0; i <= nGlyphs; ++i) {
if (locaFmt) {
- pos2 = getULong(pos + 4*i);
+ pos3 = getULong(pos + 4*i);
} else {
- pos2 = 2 * getUShort(pos + 2*i);
+ pos3 = 2 * getUShort(pos + 2*i);
}
- if (pos2 < pos) {
+ if (pos3 < pos2) {
unsortedLoca = gTrue;
break;
}
- pos = pos2;
+ pos2 = pos3;
}
nNewTables = (haveCmap ? 0 : 1) + (haveName ? 0 : 1) + (havePost ? 0 : 1);
nZeroLengthTables = 0;
https://www.fi.muni.cz/~kas/git / evince.git / blobdiff