diff options
Diffstat (limited to 'tex/context/modules/mkiv/m-punk.mkiv')
| -rw-r--r-- | tex/context/modules/mkiv/m-punk.mkiv | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/tex/context/modules/mkiv/m-punk.mkiv b/tex/context/modules/mkiv/m-punk.mkiv new file mode 100644 index 000000000..331e90d2e --- /dev/null +++ b/tex/context/modules/mkiv/m-punk.mkiv @@ -0,0 +1,257 @@ +%D \module +%D [ file=m-punk, +%D version=2008.04.15, +%D title=\CONTEXT\ Modules, +%D subtitle=Punk Support, +%D author=Hans Hagen, +%D date=\currentdate, +%D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}] +%C +%C This module is part of the \CONTEXT\ macro||package and is +%C therefore copyrighted by \PRAGMA. See mreadme.pdf for +%C details. + +\ifx\luaversion\undefined \endinput \fi + +% At some point the font generation code will move into the +% ConTeXt MkIV kernel. + +\startluacode +local concat = table.concat +local chardata = characters.data +local fontdata = fonts.hashes.identifiers + +fonts.mp = fonts.mp or { } + +fonts.mp.version = fonts.mp.version or 1.15 +fonts.mp.inline = true +fonts.mp.cache = containers.define("fonts", "mp", fonts.mp.version, true) + +metapost.characters = metapost.characters or { } + +-- todo: use table share as in otf + +local characters, descriptions = { }, { } +local factor, l, n, w, h, d, total, variants = 100, { }, 0, 0, 0, 0, 0, 0, true + +-- A next version of mplib will provide the tfm font information which +-- gives better glyph dimensions, plus additional kerning information. + +local flusher = { + startfigure = function(chrnum,llx,lly,urx,ury) + l, n = { }, chrnum + w, h, d = urx - llx, ury, -lly + total = total + 1 + inline = fonts.mp.inline + end, + flushfigure = function(t) + for i=1, #t do + l[#l+1] = t[i] + end + end, + stopfigure = function() + local cd = chardata[n] + if inline then + descriptions[n] = { + -- unicode = n, + name = cd and cd.adobename, + width = w*100, + height = h*100, + depth = d*100, + boundingbox = { 0, -d, w, h }, + } + characters[n] = { + commands = { -- todo: xforms, should happen in backend + { "special", "pdf: " .. concat(l," ") }, + } + } + else + descriptions[n] = { + -- unicode = n, + name = cd and cd.adobename, + width = w*100, + height = h*100, + depth = d*100, + boundingbox = { 0, -d, w, h }, + } + characters[n] = { + commands = { + { "image", { stream = concat(l," "), bbox = { 0, -d*65536, w*65536, h*65536 } } }, + } + } + end + end +} + +metapost.characters.instances = metapost.characters.instances or 10 + +function metapost.characters.process(mpxformat, name, instances, scalefactor) + statistics.starttiming(metapost.characters) + scalefactor = scalefactor or 1 + instances = instances or metapost.characters.instances or 10 + local fontname = file.removesuffix(file.basename(name)) + local hash = file.robustname(string.format("%s %05i %03i", fontname, scalefactor*1000, instances)) + local lists = containers.read(fonts.mp.cache, hash) + if not lists then + statistics.starttiming(flusher) + -- we can use a format per font + local data = io.loaddata(resolvers.findfile(name)) + metapost.reset(mpxformat) + metapost.setoutercolor(2) -- no outer color and no reset either + lists = { } + for i=1,instances do + characters = { } + descriptions = { } + metapost.process( + mpxformat, + { + "randomseed := " .. i*10 .. ";", + "scale_factor := " .. scalefactor .. " ;", + data + }, + false, + flusher, + false, + false, + "all" + ) + lists[i] = { + characters = characters, + descriptions = descriptions, + parameters = { + designsize = 655360, + slant = 0, + space = 333 * scalefactor, + space_stretch = 166.5 * scalefactor, + space_shrink = 111 * scalefactor, + x_height = 431 * scalefactor, + quad = 1000 * scalefactor, + extra_space = 0, + }, + properties = { + name = string.format("%s-%03i",hash,i), + virtualized = true, + spacer = "space", + } + } + end + metapost.reset(mpxformat) -- saves memory + lists = containers.write(fonts.mp.cache, hash, lists) + statistics.stoptiming(flusher) + end + variants = variants + #lists + statistics.stoptiming(metapost.characters) + return lists +end + +function fonts.handlers.vf.combiner.commands.metafont(g,v) + local size = g.specification.size + local data = metapost.characters.process(v[2],v[3],v[4],size/655360) + local list, t = { }, { } + for d=1,#data do + t = data[d] + t = fonts.constructors.scale(t, -1000) + local id = font.nextid() + t.fonts = { { id = id } } + fontdata[id] = t + fonts.handlers.vf.helpers.composecharacters(t) + list[d] = font.define(t) + end + for k, v in next, t do + g[k] = v -- kind of replace, when not present, make nil + end + g.properties.virtualized = true + g.variants = list +end + +fonts.definers.methods.install( "punk", { + { "metafont", "mfplain", "punkfont.mp", 10 }, +} ) +fonts.definers.methods.install( "punkbold", { + { "metafont", "mfplain", "punkfont-bold.mp", 10 }, +} ) +fonts.definers.methods.install( "punkslanted", { + { "metafont", "mfplain", "punkfont-slanted.mp", 10 }, +} ) +fonts.definers.methods.install( "punkboldslanted", { + { "metafont", "mfplain", "punkfont-boldslanted.mp", 10 }, +} ) + +-- typesetters.cases.register("RandomPunk", function(current) +-- local used = fontdata[current].variants +-- if used then +-- local f = math.random(1,#used) +-- current.font = used[f] +-- return current, true +-- else +-- return current, false +-- end +-- end) + +local getfont = nodes.nuts.getfont +local setfield = nodes.nuts.setfield +local random = math.random + +typesetters.cases.register("RandomPunk", function(start) + local used = fontdata[getfont(start)].variants + if used then + local f = random(1,#used) + setfield(start,"font",used[f]) + return start, true + else + return start, false + end +end) + +metapost.characters.flusher = flusher + +statistics.register("metapost font generation", function() + local time = statistics.elapsedtime(flusher) + if total > 0 then + return string.format("%i glyphs, %.3f seconds runtime, %i glyphs/second", total, time, total/time) + else + return string.format("%i glyphs, %.3f seconds runtime", total, time) + end +end) + +statistics.register("metapost font loading",function() + local time = statistics.elapsedtime(metapost.characters) + if variants > 0 then + return string.format("%.3f seconds, %i instances, %0.3f instances/second", time, variants, variants/time) + else + return string.format("%.3f seconds, %i instances", time, variants) + end +end) +\stopluacode + +\unexpanded\def\EnableRandomPunk {\setcharactercasing[RandomPunk]} +\unexpanded\def\RandomPunk {\groupedcommand\EnableRandomPunk\donothing} +\unexpanded\def\StartRandomPunk {\begingroup\EnableRandomPunk} +\unexpanded\def\StopRandomPunk {\endgroup} + +\starttypescript [serif] [punk] + \definefontsynonym [Serif] [demo@punk] + \definefontsynonym [SerifBold] [demobold@punkbold] + \definefontsynonym [SerifSlanted] [demoslanted@punkslanted] + \definefontsynonym [SerifBoldSlanted] [demoboldslanted@punkboldslanted] + \definefontsynonym [SerifItalic] [SerifSlanted] + \definefontsynonym [SerifBoldItalic] [SerifBoldSlanted] +\stoptypescript + +\starttypescript [punk] + \definetypeface [punk] [rm] [serif] [punk] [default] +\stoptypescript + +\endinput + +\usetypescript[punk] + +\setupbodyfont[punk,14pt] + +\starttext + \definedfont[demo@punk at 10pt]hello world\par + \definedfont[demo@punk at 12pt]hello world\par + \definedfont[demo@punk at 16pt]hello world\par + \definedfont[demo@punk at 20pt]hello world\par +\stoptext + |