diff options
Diffstat (limited to 'tex/context/base/mkxl/lpdf-lmt.lmt')
| -rw-r--r-- | tex/context/base/mkxl/lpdf-lmt.lmt | 481 |
1 files changed, 311 insertions, 170 deletions
diff --git a/tex/context/base/mkxl/lpdf-lmt.lmt b/tex/context/base/mkxl/lpdf-lmt.lmt index 2bbf5ba61..32dfa574f 100644 --- a/tex/context/base/mkxl/lpdf-lmt.lmt +++ b/tex/context/base/mkxl/lpdf-lmt.lmt @@ -49,38 +49,56 @@ local zlibcompress = (xzip or zlib).compress local nuts = nodes.nuts local tonut = nodes.tonut -local getdata = nuts.getdata -local getsubtype = nuts.getsubtype -local getwhd = nuts.getwhd -local flushlist = nuts.flush_list - -local pdfincludeimage = lpdf.includeimage -local pdfgetfontname = lpdf.getfontname -local pdfgetfontobjnumber = lpdf.getfontobjnumber - -local pdfreserveobject = lpdf.reserveobject -local pdfpagereference = lpdf.pagereference -local pdfflushobject = lpdf.flushobject -local pdfsharedobject = lpdf.shareobjectreference local pdfreference = lpdf.reference local pdfdictionary = lpdf.dictionary local pdfarray = lpdf.array local pdfconstant = lpdf.constant -local pdfflushstreamobject = lpdf.flushstreamobject local pdfliteral = lpdf.literal -- not to be confused with a whatsit! -local pdf_pages = pdfconstant("Pages") -local pdf_page = pdfconstant("Page") -local pdf_xobject = pdfconstant("XObject") -local pdf_form = pdfconstant("Form") +local pdfreserveobject +local pdfpagereference +local pdfflushobject +local pdfsharedobject +local pdfflushstreamobject +local pdfdeferredobject +local pdfimmediateobject -local fonthashes = fonts.hashes -local characters = fonthashes.characters -local descriptions = fonthashes.descriptions -local parameters = fonthashes.parameters -local properties = fonthashes.properties +local pdfgetfontname +local pdfgetfontobjectnumber -local report = logs.reporter("backend") +local pdfgetpagereference + +updaters.register("backend.update.lpdf",function() + pdfreserveobject = lpdf.reserveobject + pdfpagereference = lpdf.pagereference + pdfflushobject = lpdf.flushobject + pdfsharedobject = lpdf.shareobjectreference + pdfflushstreamobject = lpdf.flushstreamobject + pdfdeferredobject = lpdf.deferredobject + pdfimmediateobject = lpdf.immediateobject + -- + pdfgetfontname = lpdf.getfontname + pdfgetfontobjectnumber = lpdf.getfontobjectnumber + -- + pdfgetpagereference = lpdf.getpagereference +end) + +local pdf_pages = pdfconstant("Pages") +local pdf_page = pdfconstant("Page") +local pdf_xobject = pdfconstant("XObject") +local pdf_form = pdfconstant("Form") + +local fonthashes = fonts.hashes +local characters = fonthashes.characters +local descriptions = fonthashes.descriptions +local parameters = fonthashes.parameters +local properties = fonthashes.properties + +local report = logs.reporter("backend") +local report_objects = logs.reporter("backend","objects") + +local trace_objects = false trackers.register("backend.objects", function(v) trace_objects = v end) +local trace_details = false trackers.register("backend.details", function(v) trace_details = v end) -- used variables @@ -659,6 +677,8 @@ local flushliteral do local textliteral_code = literalvalues.text local fontliteral_code = literalvalues.font + local getdata = nuts.getdata + flushliteral = function(current,pos_h,pos_v,mode,str) if mode then if not str then @@ -717,38 +737,36 @@ local flushliteral do end end - updaters.register("backend.update.pdf",function() - function pdf.print(mode,str) - -- This only works inside objects, don't change this to flush - -- in between. It's different from luatex but okay. - if str then - mode = literalvalues[mode] + function lpdf.print(mode,str) + -- This only works inside objects, don't change this to flush + -- in between. It's different from luatex but okay. + if str then + mode = literalvalues[mode] + else + mode, str = originliteral_code, mode + end + if str and str ~= "" then + if mode == originliteral_code then + pdf_goto_pagemode() + -- pdf_set_pos(pdf_h,pdf_v) + elseif mode == pageliteral_code then + pdf_goto_pagemode() + elseif mode == textliteral_code then + pdf_goto_textmode() + elseif mode == fontliteral_code then + pdf_goto_fontmode() + elseif mode == alwaysliteral_code then + pdf_end_string_nl() + need_tm = true + elseif mode == rawliteral_code then + pdf_end_string_nl() else - mode, str = originliteral_code, mode - end - if str and str ~= "" then - if mode == originliteral_code then - pdf_goto_pagemode() - -- pdf_set_pos(pdf_h,pdf_v) - elseif mode == pageliteral_code then - pdf_goto_pagemode() - elseif mode == textliteral_code then - pdf_goto_textmode() - elseif mode == fontliteral_code then - pdf_goto_fontmode() - elseif mode == alwaysliteral_code then - pdf_end_string_nl() - need_tm = true - elseif mode == rawliteral_code then - pdf_end_string_nl() - else - pdf_goto_pagemode() - -- pdf_set_pos(pdf_h,pdf_v) - end - b = b + 1 ; buffer[b] = str + pdf_goto_pagemode() + -- pdf_set_pos(pdf_h,pdf_v) end + b = b + 1 ; buffer[b] = str end - end) + end end @@ -763,6 +781,8 @@ local flushsave, flushrestore, flushsetmatrix do local f_matrix = formatters["%s 0 0 cm"] + local getdata = nuts.getdata + flushsave = function(current,pos_h,pos_v) nofpositions = nofpositions + 1 positions[nofpositions] = { pos_h, pos_v, nofmatrices } @@ -831,11 +851,11 @@ local flushsave, flushrestore, flushsetmatrix do do - local function hasmatrix() + function lpdf.hasmatrix() return nofmatrices > 0 end - local function getmatrix() + function lpdf.getmatrix() if nofmatrices > 0 then return unpack(matrices[nofmatrices]) else @@ -843,11 +863,6 @@ local flushsave, flushrestore, flushsetmatrix do end end - updaters.register("backend.update.pdf",function() - pdf.hasmatrix = hasmatrix - pdf.getmatrix = getmatrix - end) - end pushorientation = function(orientation,pos_h,pos_v,pos_r) @@ -899,6 +914,10 @@ local flushrule, flushsimplerule, flushspecialrule, flushimage, flushgroup do local setprop = nuts.setprop local getprop = nuts.getprop + local getwhd = nuts.getwhd + local flushlist = nuts.flush_list + local getdata = nuts.getdata + local normalrule_code = rulecodes.normal local boxrule_code = rulecodes.box local imagerule_code = rulecodes.image @@ -942,9 +961,7 @@ local flushrule, flushsimplerule, flushspecialrule, flushimage, flushgroup do end end - updaters.register("backend.update.pdf",function() - pdf.getxformname = getxformname - end) + lpdf.getxformname = getxformname local function saveboxresource(box,attributes,resources,immediate,kind,margin) n = n + 1 @@ -1012,7 +1029,8 @@ local flushrule, flushsimplerule, flushspecialrule, flushimage, flushgroup do end end - updaters.register("backend.update.tex",function() +-- updaters.register("backend.update.tex",function() + updaters.register("backend.update.lpdf",function() tex.saveboxresource = saveboxresource tex.useboxresource = useboxresource tex.getboxresourcedimensions = getboxresourcedimensions @@ -1069,7 +1087,7 @@ local flushrule, flushsimplerule, flushspecialrule, flushimage, flushgroup do local imageresources, n = { }, 0 - getximagename = function(index) + getximagename = function(index) -- not used local l = imageresources[index] if l then return l.name @@ -1078,10 +1096,6 @@ local flushrule, flushsimplerule, flushspecialrule, flushimage, flushgroup do end end - updaters.register("backend.update.pdf",function() - pdf.getximagename = getximagename - end) - -- Groups are flushed immediately but we can decide to make them into a -- specific whatsit ... but not now. We could hash them if needed when -- we use lot sof them in mp ... but not now. @@ -1115,6 +1129,12 @@ local flushrule, flushsimplerule, flushspecialrule, flushimage, flushgroup do -- end of experiment + local pdfincludeimage + + updaters.register("backend.update.lpdf",function() + pdfincludeimage = lpdf.includeimage + end) + local function flushpdfximage(current,pos_h,pos_v,pos_r,size_h,size_v) local width, @@ -1626,7 +1646,7 @@ local finalize do if next(usedfonts) then fonts = pdfdictionary { } for k, v in next, usedfonts do - fonts[f_font(v)] = pdfreference(pdfgetfontobjnumber(k)) -- we can overload for testing + fonts[f_font(v)] = pdfreference(pdfgetfontobjectnumber(k)) -- we can overload for testing end end @@ -1636,7 +1656,6 @@ local finalize do if next(usedxforms) or next(usedximages) or next(usedxgroups) then xforms = pdfdictionary { } for k in sortedhash(usedxforms) do - -- xforms[f_form(k)] = pdfreference(k) xforms[f_form(getxformname(k))] = pdfreference(k) end for k, v in sortedhash(usedximages) do @@ -1766,7 +1785,6 @@ local finalize do wrapper.Resources = next(boxresources) and boxresources or nil wrapper.ProcSet = lpdf.procset() - -- pdfflushstreamobject(content,wrapper,false,objectnumber) pdfflushstreamobject(content,wrapper,false,specification.objnum) end @@ -1793,15 +1811,6 @@ local finalize do end -updaters.register("backend.update.pdf",function() - job.positions.registerhandlers { - getpos = drivers.getpos, - getrpos = drivers.getrpos, - gethpos = drivers.gethpos, - getvpos = drivers.getvpos, - } -end) - updaters.register("backend.update",function() local saveboxresource = tex.boxresources.save -- @@ -1859,45 +1868,51 @@ local s_stream_e = "\010endstream\010endobj\010" do - local function setinfo() end -- we get it - local function setcatalog() end -- we get it + -- Versions can be set but normally are managed by the official standards. When possible + -- reading and writing should look at these values. - local function settrailerid(v) - trailerid = v or false + function lpdf.setversion(major,minor) + majorversion = tonumber(major) or majorversion + minorversion = tonumber(minor) or minorversion end - local function setmajorversion(v) majorversion = tonumber(v) or majorversion end - local function setminorversion(v) minorversion = tonumber(v) or minorversion end + function lpdf.getversion(major,minor) + return majorversion, minorversion + end - local function getmajorversion(v) return majorversion end - local function getminorversion(v) return minorversion end + function lpdf.majorversion() return majorversion end + function lpdf.minorversion() return minorversion end - local function setcompresslevel (v) compress = v and v ~= 0 and true or false end - local function setobjcompresslevel(v) objectstream = v and v ~= 0 and true or false end + -- It makes no sense to support levels so we only enable and disable and stick to level 3 + -- which is both fast and efficient. - local function getcompresslevel (v) return compress and 3 or 0 end - local function getobjcompresslevel(v) return objectstream and 1 or 0 end + local frozen = false + local clevel = 3 + local olevel = 1 - local function setpageresources () end -- needs to be sorted out - local function setpageattributes () end - local function setpagesattributes() end + function lpdf.setcompression(level,objectlevel,freeze) + if not frozen then + compress = level and level ~= 0 and true or false + objectstream = objectlevel and objectlevel ~= 0 and true or false + frozen = freeze + end + end - updaters.register("backend.update.pdf",function() - pdf.setinfo = setinfo - pdf.setcatalog = setcatalog - pdf.settrailerid = settrailerid - pdf.setmajorversion = setmajorversion - pdf.setminorversion = setminorversion - pdf.getmajorversion = getmajorversion - pdf.getminorversion = getminorversion - pdf.setcompresslevel = setcompresslevel - pdf.setobjcompresslevel = setobjcompresslevel - pdf.getcompresslevel = getcompresslevel - pdf.getobjcompresslevel = getobjcompresslevel - pdf.setpageresources = setpageresources - pdf.setpageattributes = setpageattributes - pdf.setpagesattributes = setpagesattributes - end) + function lpdf.getcompression() + return compress and olevel or 0, objectstream and clevel or 0 + end + + function lpdf.compresslevel() + return compress and olevel or 0 + end + + function lpdf.objectcompresslevel() + return objectstream and clevel or 0 + end + + if environment.arguments.nocompression then + lpdf.setcompression(0,0,true) + end end @@ -1975,26 +1990,174 @@ local addtocache, flushcache, cache do end -local function pdfreserveobj() - nofobjects = nofobjects + 1 - objects[nofobjects] = false - return nofobjects +do + + local names = { } + local cache = { } + local nofpages = 0 + + local texgetcount = tex.getcount + + function lpdf.reserveobject(name) + nofobjects = nofobjects + 1 + objects[nofobjects] = false + if name then + names[name] = nofobjects + if trace_objects then + report_objects("reserving number %a under name %a",nofobjects,name) + end + elseif trace_objects then + report_objects("reserving number %a",nofobjects) + end + return nofobjects + end + + function lpdf.pagereference(n,complete) -- true | false | nil | n [true,false] + if nofpages == 0 then + nofpages = structures.pages.nofpages + if nofpages == 0 then + nofpages = 1 + end + end + if n == true or not n then + complete = n + n = texgetcount("realpageno") + end + local r = n > nofpages and pdfgetpagereference(nofpages) or pdfgetpagereference(n) + return complete and pdfreference(r) or r + end + + function lpdf.nofpages() + return structures.pages.nofpages + end + + function lpdf.object(...) + pdfdeferredobject(...) + end + + function lpdf.delayedobject(data,n) + if n then + pdfdeferredobject(n,data) + else + n = pdfdeferredobject(data) + end +-- pdfreferenceobject(n) + return n + end + + function lpdf.flushobject(name,data) + if data then + local named = names[name] + if named then + if not trace_objects then + elseif trace_details then + report_objects("flushing data to reserved object with name %a, data: %S",name,data) + else + report_objects("flushing data to reserved object with name %a",name) + end + return pdfimmediateobject(named,tostring(data)) + else + if not trace_objects then + elseif trace_details then + report_objects("flushing data to reserved object with number %s, data: %S",name,data) + else + report_objects("flushing data to reserved object with number %s",name) + end + return pdfimmediateobject(name,tostring(data)) + end + else + if trace_objects and trace_details then + report_objects("flushing data: %S",name) + end + return pdfimmediateobject(tostring(name)) + end + end + + function lpdf.flushstreamobject(data,dict,compressed,objnum) -- default compressed + if trace_objects then + report_objects("flushing stream object of %s bytes",#data) + end + local dtype = type(dict) + local kind = compressed == "raw" and "raw" or "stream" + local nolength = nil + if compressed == "raw" then + compressed = nil + nolength = true + -- data = string.formatters["<< %s >>stream\n%s\nendstream"](attr,data) + end + return pdfdeferredobject { + objnum = objnum, + immediate = true, + nolength = nolength, + compresslevel = compressed == false and 0 or nil, + type = "stream", + string = data, + attr = (dtype == "string" and dict) or (dtype == "table" and dict()) or nil, + } + end + + function lpdf.flushstreamfileobject(filename,dict,compressed,objnum) -- default compressed + if trace_objects then + report_objects("flushing stream file object %a",filename) + end + local dtype = type(dict) + return pdfdeferredobject { + objnum = objnum, + immediate = true, + compresslevel = compressed == false and 0 or nil, + type = "stream", + file = filename, + attr = (dtype == "string" and dict) or (dtype == "table" and dict()) or nil, + } + end + + local shareobjectcache, shareobjectreferencecache = { }, { } + + function lpdf.shareobject(content) + if content == nil then + -- invalid object not created + else + content = tostring(content) + local o = shareobjectcache[content] + if not o then + o = pdfimmediateobject(content) + shareobjectcache[content] = o + end + return o + end + end + + function lpdf.shareobjectreference(content) + if content == nil then + -- invalid object not created + else + content = tostring(content) + local r = shareobjectreferencecache[content] + if not r then + local o = shareobjectcache[content] + if not o then + o = pdfimmediateobject(content) + shareobjectcache[content] = o + end + r = pdfreference(o) + shareobjectreferencecache[content] = r + end + return r + end + end + end local pages = table.setmetatableindex(function(t,k) - local v = pdfreserveobj() + local v = pdfreserveobject() t[k] = v return v end) -local function getpageref(n) +function lpdf.getpagereference(n) return pages[n] end -local function refobj() - -- not needed, as we have auto-delay -end - local function flushnormalobj(data,n) if not n then nofobjects = nofobjects + 1 @@ -2094,24 +2257,7 @@ flushdeferred = function() -- was forward defined end end --- n = pdf.obj([n,] objtext) --- n = pdf.obj([n,] "file", filename) --- n = pdf.obj([n,] "stream", streamtext [, attrtext]) --- n = pdf.obj([n,] "streamfile", filename [, attrtext]) --- --- n = pdf.obj { --- type = <string>, -- raw|stream --- immediate = <boolean>, --- objnum = <number>, --- attr = <string>, --- compresslevel = <number>, --- objcompression = <boolean>, --- file = <string>, --- string = <string>, --- nolength = <boolean>, --- } - -local function obj(a,b,c,d) +function lpdf.immediateobject(a,b,c,d) local kind --, immediate local objnum, data, attr, filename local compresslevel, objcompression, nolength @@ -2183,15 +2329,7 @@ local function obj(a,b,c,d) return objnum end -updaters.register("backend.update.pdf",function() - pdf.reserveobj = pdfreserveobj - pdf.getpageref = getpageref - pdf.refobj = refobj - pdf.flushstreamobj = flushstreamobj - pdf.flushnormalobj = flushnormalobj - pdf.obj = obj - pdf.immediateobj = obj -end) +lpdf.deferredobject = lpdf.immediateobject -- In lua 5.4 the methods are now moved one metalevel deeper so we need to get them -- from mt.__index instead. (I did get that at first.) It makes for a slightly (imo) @@ -2483,7 +2621,7 @@ end -- For the moment we overload it here, although back-fil.lua eventually will -- be merged with back-pdf as it's pdf specific, or maybe back-imp-pdf or so. -updaters.register("backend.update.pdf",function() +do -- updaters.register("backend.update.pdf",function() -- We overload img but at some point it will even go away, so we just -- reimplement what we need in context. This will change completely i.e. @@ -2603,7 +2741,7 @@ updaters.register("backend.update.pdf",function() return n end - function pdf.includeimage(index) + function lpdf.includeimage(index) local specification = indices[index] if specification then local bbox = specification.bbox @@ -2612,7 +2750,7 @@ updaters.register("backend.update.pdf",function() local xsize = bbox[3] - xorigin -- we need the original ones, not the 'rotated' ones local ysize = bbox[4] - yorigin -- we need the original ones, not the 'rotated' ones local transform = specification.transform or 0 - local objnum = specification.objnum or pdfreserveobj() + local objnum = specification.objnum or pdfreserveobject() local groupref = nil local kind = specification.kind or specification.type or img_none -- determines scaling type return @@ -2625,19 +2763,28 @@ updaters.register("backend.update.pdf",function() end end -end) +end -- ) -updaters.register("backend.update.lpdf",function() +do -- updaters.register("backend.update.lpdf",function() -- todo: an md5 or sha2 hash can save space -- todo: make a type 3 font instead -- todo: move to lpdf namespace - local pdfimage = lpdf.epdf.image - local newpdf = pdfimage.new - local openpdf = pdfimage.open - local closepdf = pdfimage.close - local copypage = pdfimage.copy + local pdfimage + local newpdf + local openpdf + local closepdf + local copypage + + + updaters.register("backend.update.lpdf",function() + pdfimage = lpdf.epdf.image + newpdf = pdfimage.new + openpdf = pdfimage.open + closepdf = pdfimage.close + copypage = pdfimage.copy + end) local embedimage = images.embed @@ -2668,7 +2815,6 @@ updaters.register("backend.update.lpdf",function() index = image.index topdf[id] = index end - -- pdf.print or pdf.literal flushimage(index,wd,ht,dp,pos_h,pos_v) end @@ -2721,7 +2867,7 @@ updaters.register("backend.update.lpdf",function() lpdf.vfimage = pdfvfimage -end) +end -- ) -- The driver. @@ -2743,19 +2889,14 @@ do local function prepare(driver) if not environment.initex then -- install new functions in pdf namespace - updaters.apply("backend.update.pdf") +-- updaters.apply("backend.update.pdf") -- install new functions in lpdf namespace updaters.apply("backend.update.lpdf") -- adapt existing shortcuts to lpdf namespace - updaters.apply("backend.update.tex") - -- adapt existing shortcuts to tex namespace +-- updaters.apply("backend.update.tex") +-- -- adapt existing shortcuts to tex namespace updaters.apply("backend.update") -- - -- if rawget(pdf,"setforcefile") then - -- pdf.setforcefile(false) -- default anyway - -- end - -- - -- pdfname = file.addsuffix(tex.jobname,"pdf") pdfname = tex.jobname .. ".pdf" openfile(pdfname) -- @@ -2776,7 +2917,7 @@ do -- end -- - environment.lmtxmode = CONTEXTLMTXMODE + environment.lmtxmode = true -- CONTEXTLMTXMODE -- converter = drivers.converters.lmtx useddriver = driver |