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Sat, 19 Feb 2005 03:39:53 +0100
I've been working on direct PDF output. The basis (objects, byte
offsets) is easy enough, but
* Type1 fonts have to embedded binarily.
* Type1 fonts have to be interpreted to extract glyph widths (with freetype?)
* The Type1 has to be read, to determine byte offsets of
* There is no glyphshow operator in PDF (damn). I believe that
Unicode is well supported for text, but for emmentaler, we have
to something with CMaps, CIDs and other stuff I don't understand.
I wonder whether this is a smart choice to try out; direct PDF seems
like more work than I anticipated.
I see a couple of other options:
* Use libgnomeprint.
byrd:~/usr/src/lilypond$ ldd /usr/lib/libgnomeprint-2-2.so
libart_lgpl_2.so.2 => /usr/lib/libart_lgpl_2.so.2 (0x009a8000)
libpangoft2-1.0.so.0 => /usr/lib/libpangoft2-1.0.so.0 (0x00a19000)
libpango-1.0.so.0 => /usr/lib/libpango-1.0.so.0 (0x009e1000)
libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0x00872000)
libgmodule-2.0.so.0 => /usr/lib/libgmodule-2.0.so.0 (0x0086d000)
libdl.so.2 => /lib/libdl.so.2 (0x005cc000)
libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0x007f0000)
libxml2.so.2 => /usr/lib/libxml2.so.2 (0x0034e000)
libpthread.so.0 => /lib/tls/libpthread.so.0 (0x006bd000)
libm.so.6 => /lib/tls/libm.so.6 (0x005a7000)
libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x0075e000)
libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x006f5000)
libz.so.1 => /usr/lib/libz.so.1 (0x0069b000)
libc.so.6 => /lib/tls/libc.so.6 (0x0047b000)
libexpat.so.0 => /usr/lib/libexpat.so.0 (0x00786000)
this increases dependencies of lily, and I wonder how much control we
will have over the output.
* We can make FontConfig ignore TTF fonts. We don't call the next
release 3.0, but 2.6.
Viable, but not so attractive.
* We can convert every TTF with fontforge to Type42 or CFF and include
that in the PS. For performance reasons, we can cache the result.
Problem: this adds rapidly changing fontforge as a running dependency.
This is not viable, IMO.
* We can hack fontconfig support into Ghostscript 8.15, pray that all
distros start shipping it and have GS load the fonts.
A nice solution, but a logistic nightmare? I suspect that this might
be the easiest route technically, though.
What do you guys think? In particular, Font Guru Werner - should I
persist trying to get direct PDF up and running, or pursue the
Han-Wen Nienhuys | address@hidden | http://www.xs4all.nl/~hanwen
Re: urg., Jan Nieuwenhuizen, 2005/02/19
Han-Wen Nienhuys <=