EStatusCode CFFDescendentFontWriter::WriteFont( ObjectIDType inDecendentObjectID,
const std::string& inFontName,
FreeTypeFaceWrapper& inFontInfo,
const UIntAndGlyphEncodingInfoVector& inEncodedGlyphs,
ObjectsContext* inObjectsContext,
bool inEmbedFont)
{
// reset embedded font object ID (and flag...to whether it was actually embedded or not, which may
// happen due to font embedding restrictions)
mEmbeddedFontFileObjectID = 0;
// Logically speaking, i shouldn't be getting to CID writing
// if in type 1. at least, this is the current assumption, since
// i don't intend to support type 1 CIDs, but just regular type 1s.
// as such - fail if got here for type 1
const char* fontType = inFontInfo.GetTypeString();
if(strcmp(scType1,fontType) == 0)
{
TRACE_LOG1("CFFDescendentFontWriter::WriteFont, Exception. identified type1 font when writing CFF CID font, font name - %s. type 1 CIDs are not supported.",inFontName.substr(0, MAX_TRACE_SIZE - 200).c_str());
return PDFHummus::eFailure;
}
if (inEmbedFont)
{
CFFEmbeddedFontWriter embeddedFontWriter;
UIntAndGlyphEncodingInfoVector encodedGlyphs = inEncodedGlyphs;
UIntVector orderedGlyphs;
UShortVector cidMapping;
// Gal: the following sort completely ruins everything.
// the order of the glyphs should be maintained per the ENCODED characthers
// which is how the input is recieved. IMPORTANT - the order is critical
// for the success of the embedding, as the order determines the order of the glyphs
// in the subset font and so their GID which MUST match the encoded char.
//sort(encodedGlyphs.begin(), encodedGlyphs.end(), sEncodedGlypsSort);
for (UIntAndGlyphEncodingInfoVector::const_iterator it = encodedGlyphs.begin();
it != encodedGlyphs.end();
++it)
{
orderedGlyphs.push_back(it->first);
cidMapping.push_back(it->second.mEncodedCharacter);
}
EStatusCode status = embeddedFontWriter.WriteEmbeddedFont(inFontInfo,
orderedGlyphs,
scCIDFontType0C,
inFontName,
inObjectsContext,
&cidMapping,
mEmbeddedFontFileObjectID);
if (status != PDFHummus::eSuccess)
return status;
}
DescendentFontWriter descendentFontWriter;
return descendentFontWriter.WriteFont(inDecendentObjectID,inFontName,inFontInfo,inEncodedGlyphs,inObjectsContext,this);
}
void Type1ToCFFEmbeddedFontWriter::TranslateFromFreeTypeToType1(FreeTypeFaceWrapper& inFontInfo,
const UIntVector& inSubsetGlyphIDs,
StringVector& outGlyphNames)
{
UIntVector::const_iterator it = inSubsetGlyphIDs.begin();
for(; it != inSubsetGlyphIDs.end(); ++it)
outGlyphNames.push_back(inFontInfo.GetGlyphName(*it));
}
EStatusCode CFFANSIFontWriter::WriteFont( FreeTypeFaceWrapper& inFontInfo,
WrittenFontRepresentation* inFontOccurrence,
ObjectsContext* inObjectsContext)
{
const char* postscriptFontName = FT_Get_Postscript_Name(inFontInfo);
if(!postscriptFontName)
{
TRACE_LOG("CFFANSIFontWriter::WriteFont, unexpected failure. no postscript font name for font");
return PDFHummus::eFailure;
}
std::string subsetFontName = inObjectsContext->GenerateSubsetFontPrefix() + scPlus + postscriptFontName;
const char* fontType = inFontInfo.GetTypeString();
// reset embedded font object ID (and flag...to whether it was actually embedded or not, which may
// happen due to font embedding restrictions)
mEmbeddedFontFileObjectID = 0;
EStatusCode status;
if(strcmp(scType1Type,fontType) == 0)
{
Type1ToCFFEmbeddedFontWriter embeddedFontWriter;
status = embeddedFontWriter.WriteEmbeddedFont(inFontInfo,
inFontOccurrence->GetGlyphIDsAsOrderedVector(),
scType1C,
subsetFontName,
inObjectsContext,
mEmbeddedFontFileObjectID);
}
else if(strcmp(scCFF,fontType) == 0)
{
CFFEmbeddedFontWriter embeddedFontWriter;
status = embeddedFontWriter.WriteEmbeddedFont(inFontInfo,
inFontOccurrence->GetGlyphIDsAsOrderedVector(),
scType1C,
subsetFontName,
inObjectsContext,
mEmbeddedFontFileObjectID);
}
else
{
TRACE_LOG("CFFANSIFontWriter::WriteFont, Exception, unfamilar font type for embedding representation");
status = PDFHummus::eFailure;
}
if(status != PDFHummus::eSuccess)
return status;
ANSIFontWriter fontWriter;
return fontWriter.WriteFont(inFontInfo,inFontOccurrence,inObjectsContext,this,subsetFontName);
}
EStatusCode TrueTypeANSIFontWriter::WriteFont( FreeTypeFaceWrapper& inFontInfo,
WrittenFontRepresentation* inFontOccurrence,
ObjectsContext* inObjectsContext,
bool inEmbedFont)
{
std::string postscriptFontName = inFontInfo.GetPostscriptName();
if(postscriptFontName.length() == 0)
{
TRACE_LOG("TrueTypeANSIFontWriter::WriteFont, unexpected failure. no postscript font name for font");
return PDFHummus::eFailure;
}
std::string fontName;
// reset embedded font object ID (and flag...to whether it was actually embedded or not, which may
// happen due to font embedding restrictions, or due to users choice)
mEmbeddedFontFileObjectID = 0;
TrueTypeEmbeddedFontWriter embeddedFontWriter;
if (inEmbedFont)
{
fontName = inObjectsContext->GenerateSubsetFontPrefix() + scPlus + postscriptFontName;
EStatusCode status = embeddedFontWriter.WriteEmbeddedFont(inFontInfo,
inFontOccurrence->GetGlyphIDsAsOrderedVector(),
inObjectsContext,
mEmbeddedFontFileObjectID);
if (PDFHummus::eFailure == status)
return status;
}
else
fontName = postscriptFontName;
ANSIFontWriter fontWriter;
return fontWriter.WriteFont(inFontInfo, inFontOccurrence, inObjectsContext, this, fontName);
}
EStatusCode TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset( FreeTypeFaceWrapper& inFontInfo, /*consider requiring only the file path...actually i don't need the whole thing*/
const UIntVector& inSubsetGlyphIDs,
bool& outNotEmbedded,
MyStringBuf& outFontProgram)
{
EStatusCode status;
unsigned long* locaTable = NULL;
do
{
UIntVector subsetGlyphIDs = inSubsetGlyphIDs;
status = mTrueTypeFile.OpenFile(inFontInfo.GetFontFilePath());
if(status != PDFHummus::eSuccess)
{
TRACE_LOG1("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, cannot open true type font file at %s",inFontInfo.GetFontFilePath().c_str());
break;
}
status = mTrueTypeInput.ReadOpenTypeFile(mTrueTypeFile.GetInputStream(),(unsigned short)inFontInfo.GetFontIndex());
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to read true type file");
break;
}
if(mTrueTypeInput.GetOpenTypeFontType() != EOpenTypeTrueType)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, font file is not true type, so there is an exceptions here. expecting true types only");
break;
}
// see if font may be embedded
if(mTrueTypeInput.mOS2Exists && !FSType(mTrueTypeInput.mOS2.fsType).CanEmbed())
{
outNotEmbedded = true;
return PDFHummus::eSuccess;
}
else
outNotEmbedded = false;
AddDependentGlyphs(subsetGlyphIDs);
// K. this needs a bit explaining.
// i want to leave the glyph IDs as they were in the original font.
// this allows me to write a more comfotable font definition. something which is generic enough
// this assumption requires that the font will contain the glyphs in their original position
// to allow that, when the glyph count is smaller than the actual glyphs count, i'm
// padding with 0 length glyphs (their loca entries just don't move).
// don't worry - it's perfectly kosher.
// so - bottom line - the glyphs count will actually be 1 more than the maxium glyph index.
// and from here i'll just place the glyphs in their original indexes, and fill in the
// vacant glyphs with empties.
mSubsetFontGlyphsCount = subsetGlyphIDs.back() + 1;
mFontFileStream.Assign(&outFontProgram);
mPrimitivesWriter.SetOpenTypeStream(&mFontFileStream);
// assign also to some reader streams, so i can read items for checksums calculations
mFontFileReaderStream.Assign(&outFontProgram);
mPrimitivesReader.SetOpenTypeStream(&mFontFileReaderStream);
status = WriteTrueTypeHeader();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write true type header");
break;
}
status = WriteHead();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write head table");
break;
}
status = WriteHHea();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write hhea table");
break;
}
status = WriteHMtx();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write hmtx table");
break;
}
status = WriteMaxp();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write Maxp table");
break;
}
if(mTrueTypeInput.mCVTExists)
{
status = WriteCVT();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write cvt table");
break;
}
}
if(mTrueTypeInput.mFPGMExists)
{
status = WriteFPGM();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write fpgm table");
break;
}
}
if(mTrueTypeInput.mPREPExists)
{
status = WritePREP();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write prep table");
break;
}
}
status = WriteNAME();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write name table");
break;
}
if(mTrueTypeInput.mOS2Exists)
{
status = WriteOS2();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write os2 table");
break;
}
}
status = WriteCMAP();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write cmap table");
break;
}
locaTable = new unsigned long[mSubsetFontGlyphsCount+1];
status = WriteGlyf(subsetGlyphIDs,locaTable);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write prep table");
break;
}
status = WriteLoca(locaTable);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("TrueTypeEmbeddedFontWriter::CreateTrueTypeSubset, failed to write loca table");
break;
}
status = CreateHeadTableCheckSumAdjustment();
}while(false);
delete[] locaTable;
mTrueTypeFile.CloseFile();
return status;
}
EStatusCode CFFEmbeddedFontWriter::CreateCFFSubset(
FreeTypeFaceWrapper& inFontInfo,
const UIntVector& inSubsetGlyphIDs,
UShortVector* inCIDMapping,
const std::string& inSubsetFontName,
bool& outNotEmbedded,
MyStringBuf& outFontProgram)
{
EStatusCode status;
do
{
status = mOpenTypeFile.OpenFile(inFontInfo.GetFontFilePath());
if(status != PDFHummus::eSuccess)
{
TRACE_LOG1("CFFEmbeddedFontWriter::CreateCFFSubset, cannot open type font file at %s",inFontInfo.GetFontFilePath().c_str());
break;
}
status = mOpenTypeInput.ReadOpenTypeFile(mOpenTypeFile.GetInputStream(),(unsigned short)inFontInfo.GetFontIndex());
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to read true type file");
break;
}
if(mOpenTypeInput.GetOpenTypeFontType() != EOpenTypeCFF)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, font file is not CFF, so there is an exceptions here. expecting CFFs only");
break;
}
// see if font may be embedded
if(mOpenTypeInput.mOS2Exists && !FSType(mOpenTypeInput.mOS2.fsType).CanEmbed())
{
outNotEmbedded = true;
return PDFHummus::eSuccess;
}
else
outNotEmbedded = false;
UIntVector subsetGlyphIDs = inSubsetGlyphIDs;
if(subsetGlyphIDs.front() != 0) // make sure 0 glyph is in
subsetGlyphIDs.insert(subsetGlyphIDs.begin(),0);
status = AddDependentGlyphs(subsetGlyphIDs);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to add dependent glyphs");
break;
}
mIsCID = mOpenTypeInput.mCFF.mTopDictIndex[0].mTopDict.find(scROS) !=
mOpenTypeInput.mCFF.mTopDictIndex[0].mTopDict.end();
mFontFileStream.Assign(&outFontProgram);
mPrimitivesWriter.SetStream(&mFontFileStream);
status = WriteCFFHeader();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to write CFF header");
break;
}
status = WriteName(inSubsetFontName);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to write CFF Name");
break;
}
status = WriteTopIndex();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to write Top Index");
break;
}
status = WriteStringIndex();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to write String Index");
break;
}
status = WriteGlobalSubrsIndex();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to write global subrs index");
break;
}
status = WriteEncodings(inSubsetGlyphIDs);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to write encodings");
break;
}
status = WriteCharsets(inSubsetGlyphIDs,inCIDMapping);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to write charstring");
break;
}
FontDictInfoToByteMap newFDIndexes;
if(mIsCID)
{
DetermineFDArrayIndexes(inSubsetGlyphIDs,newFDIndexes);
status = WriteFDSelect(inSubsetGlyphIDs,newFDIndexes);
if(status != PDFHummus::eSuccess)
break;
}
status = WriteCharStrings(inSubsetGlyphIDs);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to write charstring");
break;
}
status = WritePrivateDictionary();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to write private");
break;
}
if(mIsCID)
{
status = WriteFDArray(inSubsetGlyphIDs,newFDIndexes);
if(status != PDFHummus::eSuccess)
break;
}
status = UpdateIndexesAtTopDict();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("CFFEmbeddedFontWriter::CreateCFFSubset, failed to update indexes");
break;
}
}while(false);
mOpenTypeFile.CloseFile();
return status;
}
EStatusCode Type1ToCFFEmbeddedFontWriter::CreateCFFSubset(
FreeTypeFaceWrapper& inFontInfo,
const UIntVector& inSubsetGlyphIDs,
const std::string& inSubsetFontName,
bool& outNotEmbedded,
MyStringBuf& outFontProgram)
{
EStatusCode status;
do
{
UIntVector subsetGlyphIDs = inSubsetGlyphIDs;
StringVector subsetGlyphNames;
if(subsetGlyphIDs.front() != 0) // make sure 0 glyph is in
subsetGlyphIDs.insert(subsetGlyphIDs.begin(),0);
status = mType1File.OpenFile(inFontInfo.GetFontFilePath());
if(status != PDFHummus::eSuccess)
{
TRACE_LOG1("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, cannot open Type 1 font file at %s",inFontInfo.GetFontFilePath().c_str());
break;
}
status = mType1Input.ReadType1File(mType1File.GetInputStream());
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to read Type 1 file");
break;
}
// see if font may be embedded
if(mType1Input.mFontDictionary.FSTypeValid || mType1Input.mFontInfoDictionary.FSTypeValid)
{
if(!FSType(
mType1Input.mFontInfoDictionary.FSTypeValid ?
mType1Input.mFontInfoDictionary.fsType :
mType1Input.mFontDictionary.fsType).CanEmbed())
{
outNotEmbedded = true;
return PDFHummus::eSuccess;
}
else
outNotEmbedded = false;
}
else
outNotEmbedded = false;
// Found big gap between FreeType indexing and the way it's in the Type 1. obvioulsy due to encoding differences.
// So i'm replacing the indexes of free type, with names...should be safer (also cleans up invalid glyph ids, in case
// direct glyphs placement put them here)
TranslateFromFreeTypeToType1(inFontInfo,subsetGlyphIDs,subsetGlyphNames);
status = AddDependentGlyphs(subsetGlyphNames);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to add dependent glyphs");
break;
}
mFontFileStream.Assign(&outFontProgram);
mPrimitivesWriter.SetStream(&mFontFileStream);
status = WriteCFFHeader();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to write CFF header");
break;
}
status = WriteName(inSubsetFontName);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to write CFF Name");
break;
}
status = WriteTopIndex();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to write Top Index");
break;
}
// prepraring charset happens here, so that any added strings to the string index will happen...before
// the index is written
PrepareCharSetArray(subsetGlyphNames);
status = WriteStringIndex();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to write String Index");
break;
}
status = WriteGlobalSubrsIndex();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to write global subrs index");
break;
}
status = WriteEncodings(subsetGlyphNames);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to write encodings");
break;
}
status = WriteCharsets(subsetGlyphNames);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to write charstring");
break;
}
status = WriteCharStrings(subsetGlyphNames);
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to write charstring");
break;
}
status = WritePrivateDictionary();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to write private");
break;
}
status = UpdateIndexesAtTopDict();
if(status != PDFHummus::eSuccess)
{
TRACE_LOG("Type1ToCFFEmbeddedFontWriter::CreateCFFSubset, failed to update indexes");
break;
}
}while(false);
mType1File.CloseFile();
FreeTemporaryStructs();
return status;
}
