Hi Hans,
In lpdf-emb.lmt, there's a commented-out definition of
lpdf.registerfontmethod that I'd like to use. I've uncommented this in
my installation and it's worked pretty well for me, so can you please
uncomment/enable this by default in the distribution?
If you want further background, this is how I'm using it:
lpdf.registerfontmethod("rawpdf", function(filename, details)
return
details.properties.indexdata[1],
0.001,
function(char)
return char.code, char.width / t3_to_sp
end,
function() end,
function() end
end)
local function make_glyph(codepoint, unicode, width, height, code)
local spec <const> = {
width = width * t3_to_sp,
height = height * t3_to_sp,
depth = 0,
unicode = { utf8.codepoint(unicode or "", 1, -1, true) },
code = width .. " 0 d0 " .. code,
}
local tfmdata <const> = fonts.hashes.identifiers[font.current()]
tfmdata.characters[codepoint] = spec
fonts.dropins.swapone(
"rawpdf",
tfmdata,
{ code = spec },
codepoint
)
fonts.constructors.addcharacters(
font.current(),
{ characters = { [codepoint] = spec } }
)
end
I specifically need something that writes out a raw PDF stream. I'm
using this to write a 4000+ page PDF file to be included by pdfTeX, so I
can't have any XObject indirection or similar, otherwise the number of
objects skyrockets and pdfTeX (+qpdf) gets really slow.
If you're curious, the actual code where I'm using this is here:
https://github.com/gucci-on-fleek/unnamed-emoji/blob/master/source/svg-to-pdf.cld
https://github.com/gucci-on-fleek/unnamed-emoji/blob/master/source/unnamed-emoji.lua
I know that what I'm doing in the .cld file is wildly unsupported, but
I'm the only one who will ever need to run that. I am planning on
distributing the .lua file though, so I'd like to get this change in the
distribution.
I'm also open to using a different interface instead if you don't want
to publicly-expose lpdf.registerfontmethod.
Thanks,
-- Max
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