From bb3a6230adf4f4595892f80c861165e8b633d6de Mon Sep 17 00:00:00 2001 From: Philipp Gesang Date: Mon, 8 Dec 2014 20:47:36 +0100 Subject: =?UTF-8?q?[fontloader]=20change=20prefix=20of=20imported=20files?= =?UTF-8?q?=20to=20=E2=80=9Cfontloader=E2=80=9D?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/fontloader/luaotfload-fonts-inj.lua | 526 -------------------------------- 1 file changed, 526 deletions(-) delete mode 100644 src/fontloader/luaotfload-fonts-inj.lua (limited to 'src/fontloader/luaotfload-fonts-inj.lua') diff --git a/src/fontloader/luaotfload-fonts-inj.lua b/src/fontloader/luaotfload-fonts-inj.lua deleted file mode 100644 index ae48150..0000000 --- a/src/fontloader/luaotfload-fonts-inj.lua +++ /dev/null @@ -1,526 +0,0 @@ -if not modules then modules = { } end modules ['node-inj'] = { - version = 1.001, - comment = "companion to node-ini.mkiv", - author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", - copyright = "PRAGMA ADE / ConTeXt Development Team", - license = "see context related readme files", -} - --- This is very experimental (this will change when we have luatex > .50 and --- a few pending thingies are available. Also, Idris needs to make a few more --- test fonts. Btw, future versions of luatex will have extended glyph properties --- that can be of help. Some optimizations can go away when we have faster machines. - --- todo: make a special one for context - -local next = next -local utfchar = utf.char - -local trace_injections = false trackers.register("nodes.injections", function(v) trace_injections = v end) - -local report_injections = logs.reporter("nodes","injections") - -local attributes, nodes, node = attributes, nodes, node - -fonts = fonts -local fontdata = fonts.hashes.identifiers - -nodes.injections = nodes.injections or { } -local injections = nodes.injections - -local nodecodes = nodes.nodecodes -local glyph_code = nodecodes.glyph -local kern_code = nodecodes.kern -local nodepool = nodes.pool -local newkern = nodepool.kern - -local traverse_id = node.traverse_id -local insert_node_before = node.insert_before -local insert_node_after = node.insert_after - -local a_kernpair = attributes.private('kernpair') -local a_ligacomp = attributes.private('ligacomp') -local a_markbase = attributes.private('markbase') -local a_markmark = attributes.private('markmark') -local a_markdone = attributes.private('markdone') -local a_cursbase = attributes.private('cursbase') -local a_curscurs = attributes.private('curscurs') -local a_cursdone = attributes.private('cursdone') - --- This injector has been tested by Idris Samawi Hamid (several arabic fonts as well as --- the rather demanding Husayni font), Khaled Hosny (latin and arabic) and Kaj Eigner --- (arabic, hebrew and thai) and myself (whatever font I come across). I'm pretty sure --- that this code is not 100% okay but examples are needed to figure things out. - -function injections.installnewkern(nk) - newkern = nk or newkern -end - -local cursives = { } -local marks = { } -local kerns = { } - --- Currently we do gpos/kern in a bit inofficial way but when we have the extra fields in --- glyphnodes to manipulate ht/dp/wd explicitly I will provide an alternative; also, we --- can share tables. - --- For the moment we pass the r2l key ... volt/arabtype tests .. idris: this needs --- checking with husayni (volt and fontforge). - -function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmnext) - local dx, dy = factor*(exit[1]-entry[1]), factor*(exit[2]-entry[2]) - local ws, wn = tfmstart.width, tfmnext.width - local bound = #cursives + 1 - start[a_cursbase] = bound - nxt[a_curscurs] = bound - cursives[bound] = { rlmode, dx, dy, ws, wn } - return dx, dy, bound -end - -function injections.setpair(current,factor,rlmode,r2lflag,spec,tfmchr) - local x, y, w, h = factor*spec[1], factor*spec[2], factor*spec[3], factor*spec[4] - -- dy = y - h - if x ~= 0 or w ~= 0 or y ~= 0 or h ~= 0 then - local bound = current[a_kernpair] - if bound then - local kb = kerns[bound] - -- inefficient but singles have less, but weird anyway, needs checking - kb[2], kb[3], kb[4], kb[5] = (kb[2] or 0) + x, (kb[3] or 0) + y, (kb[4] or 0)+ w, (kb[5] or 0) + h - else - bound = #kerns + 1 - current[a_kernpair] = bound - kerns[bound] = { rlmode, x, y, w, h, r2lflag, tfmchr.width } - end - return x, y, w, h, bound - end - return x, y, w, h -- no bound -end - -function injections.setkern(current,factor,rlmode,x,tfmchr) - local dx = factor*x - if dx ~= 0 then - local bound = #kerns + 1 - current[a_kernpair] = bound - kerns[bound] = { rlmode, dx } - return dx, bound - else - return 0, 0 - end -end - -function injections.setmark(start,base,factor,rlmode,ba,ma,index,baseismark) -- ba=baseanchor, ma=markanchor - local dx, dy = factor*(ba[1]-ma[1]), factor*(ba[2]-ma[2]) -- the index argument is no longer used but when this - local bound = base[a_markbase] -- fails again we should pass it - local index = 1 - if bound then - local mb = marks[bound] - if mb then - -- if not index then index = #mb + 1 end - index = #mb + 1 - mb[index] = { dx, dy, rlmode } - start[a_markmark] = bound - start[a_markdone] = index - return dx, dy, bound - else - report_injections("possible problem, %U is base mark without data (id %a)",base.char,bound) - end - end --- index = index or 1 - index = index or 1 - bound = #marks + 1 - base[a_markbase] = bound - start[a_markmark] = bound - start[a_markdone] = index - marks[bound] = { [index] = { dx, dy, rlmode, baseismark } } - return dx, dy, bound -end - -local function dir(n) - return (n and n<0 and "r-to-l") or (n and n>0 and "l-to-r") or "unset" -end - -local function trace(head) - report_injections("begin run") - for n in traverse_id(glyph_code,head) do - if n.subtype < 256 then - local kp = n[a_kernpair] - local mb = n[a_markbase] - local mm = n[a_markmark] - local md = n[a_markdone] - local cb = n[a_cursbase] - local cc = n[a_curscurs] - local char = n.char - report_injections("font %s, char %U, glyph %c",n.font,char,char) - if kp then - local k = kerns[kp] - if k[3] then - report_injections(" pairkern: dir %a, x %p, y %p, w %p, h %p",dir(k[1]),k[2],k[3],k[4],k[5]) - else - report_injections(" kern: dir %a, dx %p",dir(k[1]),k[2]) - end - end - if mb then - report_injections(" markbase: bound %a",mb) - end - if mm then - local m = marks[mm] - if mb then - local m = m[mb] - if m then - report_injections(" markmark: bound %a, index %a, dx %p, dy %p",mm,md,m[1],m[2]) - else - report_injections(" markmark: bound %a, missing index",mm) - end - else - m = m[1] - report_injections(" markmark: bound %a, dx %p, dy %p",mm,m and m[1],m and m[2]) - end - end - if cb then - report_injections(" cursbase: bound %a",cb) - end - if cc then - local c = cursives[cc] - report_injections(" curscurs: bound %a, dir %a, dx %p, dy %p",cc,dir(c[1]),c[2],c[3]) - end - end - end - report_injections("end run") -end - --- todo: reuse tables (i.e. no collection), but will be extra fields anyway --- todo: check for attribute - --- We can have a fast test on a font being processed, so we can check faster for marks etc --- but I'll make a context variant anyway. - -local function show_result(head) - local current = head - local skipping = false - while current do - local id = current.id - if id == glyph_code then - report_injections("char: %C, width %p, xoffset %p, yoffset %p",current.char,current.width,current.xoffset,current.yoffset) - skipping = false - elseif id == kern_code then - report_injections("kern: %p",current.kern) - skipping = false - elseif not skipping then - report_injections() - skipping = true - end - current = current.next - end -end - -function injections.handler(head,where,keep) - local has_marks, has_cursives, has_kerns = next(marks), next(cursives), next(kerns) - if has_marks or has_cursives then - if trace_injections then - trace(head) - end - -- in the future variant we will not copy items but refs to tables - local done, ky, rl, valid, cx, wx, mk, nofvalid = false, { }, { }, { }, { }, { }, { }, 0 - if has_kerns then -- move outside loop - local nf, tm = nil, nil - for n in traverse_id(glyph_code,head) do -- only needed for relevant fonts - if n.subtype < 256 then - nofvalid = nofvalid + 1 - valid[nofvalid] = n - if n.font ~= nf then - nf = n.font - tm = fontdata[nf].resources.marks - end - if tm then - mk[n] = tm[n.char] - end - local k = n[a_kernpair] - if k then - local kk = kerns[k] - if kk then - local x, y, w, h = kk[2] or 0, kk[3] or 0, kk[4] or 0, kk[5] or 0 - local dy = y - h - if dy ~= 0 then - ky[n] = dy - end - if w ~= 0 or x ~= 0 then - wx[n] = kk - end - rl[n] = kk[1] -- could move in test - end - end - end - end - else - local nf, tm = nil, nil - for n in traverse_id(glyph_code,head) do - if n.subtype < 256 then - nofvalid = nofvalid + 1 - valid[nofvalid] = n - if n.font ~= nf then - nf = n.font - tm = fontdata[nf].resources.marks - end - if tm then - mk[n] = tm[n.char] - end - end - end - end - if nofvalid > 0 then - -- we can assume done == true because we have cursives and marks - local cx = { } - if has_kerns and next(ky) then - for n, k in next, ky do - n.yoffset = k - end - end - -- todo: reuse t and use maxt - if has_cursives then - local p_cursbase, p = nil, nil - -- since we need valid[n+1] we can also use a "while true do" - local t, d, maxt = { }, { }, 0 - for i=1,nofvalid do -- valid == glyphs - local n = valid[i] - if not mk[n] then - local n_cursbase = n[a_cursbase] - if p_cursbase then - local n_curscurs = n[a_curscurs] - if p_cursbase == n_curscurs then - local c = cursives[n_curscurs] - if c then - local rlmode, dx, dy, ws, wn = c[1], c[2], c[3], c[4], c[5] - if rlmode >= 0 then - dx = dx - ws - else - dx = dx + wn - end - if dx ~= 0 then - cx[n] = dx - rl[n] = rlmode - end - -- if rlmode and rlmode < 0 then - dy = -dy - -- end - maxt = maxt + 1 - t[maxt] = p - d[maxt] = dy - else - maxt = 0 - end - end - elseif maxt > 0 then - local ny = n.yoffset - for i=maxt,1,-1 do - ny = ny + d[i] - local ti = t[i] - ti.yoffset = ti.yoffset + ny - end - maxt = 0 - end - if not n_cursbase and maxt > 0 then - local ny = n.yoffset - for i=maxt,1,-1 do - ny = ny + d[i] - local ti = t[i] - ti.yoffset = ny - end - maxt = 0 - end - p_cursbase, p = n_cursbase, n - end - end - if maxt > 0 then - local ny = n.yoffset - for i=maxt,1,-1 do - ny = ny + d[i] - local ti = t[i] - ti.yoffset = ny - end - maxt = 0 - end - if not keep then - cursives = { } - end - end - if has_marks then - for i=1,nofvalid do - local p = valid[i] - local p_markbase = p[a_markbase] - if p_markbase then - local mrks = marks[p_markbase] - local nofmarks = #mrks - for n in traverse_id(glyph_code,p.next) do - local n_markmark = n[a_markmark] - if p_markbase == n_markmark then - local index = n[a_markdone] or 1 - local d = mrks[index] - if d then - local rlmode = d[3] - -- - local k = wx[p] - if k then - local x = k[2] - local w = k[4] - if w then - if rlmode and rlmode >= 0 then - -- kern(x) glyph(p) kern(w-x) mark(n) - n.xoffset = p.xoffset - p.width + d[1] - (w-x) - else - -- kern(w-x) glyph(p) kern(x) mark(n) - n.xoffset = p.xoffset - d[1] - x - end - else - if rlmode and rlmode >= 0 then - -- okay for husayni - n.xoffset = p.xoffset - p.width + d[1] - else - -- needs checking: is x ok here? - n.xoffset = p.xoffset - d[1] - x - end - end - else - if rlmode and rlmode >= 0 then - n.xoffset = p.xoffset - p.width + d[1] - else - n.xoffset = p.xoffset - d[1] - end - local w = n.width - if w ~= 0 then - insert_node_before(head,n,newkern(-w/2)) - insert_node_after(head,n,newkern(-w/2)) - end - end - -- -- - if mk[p] then - n.yoffset = p.yoffset + d[2] - else - n.yoffset = n.yoffset + p.yoffset + d[2] - end - -- - if nofmarks == 1 then - break - else - nofmarks = nofmarks - 1 - end - end - else - -- KE: there can be sequences in ligatures - end - end - end - end - if not keep then - marks = { } - end - end - -- todo : combine - if next(wx) then - for n, k in next, wx do - -- only w can be nil (kernclasses), can be sped up when w == nil - local x = k[2] - local w = k[4] - if w then - local rl = k[1] -- r2l = k[6] - local wx = w - x - if rl < 0 then -- KE: don't use r2l here - if wx ~= 0 then - insert_node_before(head,n,newkern(wx)) -- type 0/2 - end - if x ~= 0 then - insert_node_after (head,n,newkern(x)) -- type 0/2 - end - else - if x ~= 0 then - insert_node_before(head,n,newkern(x)) -- type 0/2 - end - if wx ~= 0 then - insert_node_after (head,n,newkern(wx)) -- type 0/2 - end - end - elseif x ~= 0 then - -- this needs checking for rl < 0 but it is unlikely that a r2l script - -- uses kernclasses between glyphs so we're probably safe (KE has a - -- problematic font where marks interfere with rl < 0 in the previous - -- case) - insert_node_before(head,n,newkern(x)) -- a real font kern, type 0 - end - end - end - if next(cx) then - for n, k in next, cx do - if k ~= 0 then - local rln = rl[n] - if rln and rln < 0 then - insert_node_before(head,n,newkern(-k)) -- type 0/2 - else - insert_node_before(head,n,newkern(k)) -- type 0/2 - end - end - end - end - if not keep then - kerns = { } - end - -- if trace_injections then - -- show_result(head) - -- end - return head, true - elseif not keep then - kerns, cursives, marks = { }, { }, { } - end - elseif has_kerns then - if trace_injections then - trace(head) - end - for n in traverse_id(glyph_code,head) do - if n.subtype < 256 then - local k = n[a_kernpair] - if k then - local kk = kerns[k] - if kk then - local rl, x, y, w = kk[1], kk[2] or 0, kk[3], kk[4] - if y and y ~= 0 then - n.yoffset = y -- todo: h ? - end - if w then - -- copied from above - -- local r2l = kk[6] - local wx = w - x - if rl < 0 then -- KE: don't use r2l here - if wx ~= 0 then - insert_node_before(head,n,newkern(wx)) - end - if x ~= 0 then - insert_node_after (head,n,newkern(x)) - end - else - if x ~= 0 then - insert_node_before(head,n,newkern(x)) - end - if wx ~= 0 then - insert_node_after(head,n,newkern(wx)) - end - end - else - -- simple (e.g. kernclass kerns) - if x ~= 0 then - insert_node_before(head,n,newkern(x)) - end - end - end - end - end - end - if not keep then - kerns = { } - end - -- if trace_injections then - -- show_result(head) - -- end - return head, true - else - -- no tracing needed - end - return head, false -end -- cgit v1.2.3