diff options
Diffstat (limited to 'otfl-font-tfm.lua')
| -rw-r--r-- | otfl-font-tfm.lua | 110 |
1 files changed, 58 insertions, 52 deletions
diff --git a/otfl-font-tfm.lua b/otfl-font-tfm.lua index 2ab28c7..4bb47cf 100644 --- a/otfl-font-tfm.lua +++ b/otfl-font-tfm.lua @@ -186,36 +186,36 @@ fonts.trace_scaling = false -- basekerns are scaled and will be hashed by table id -- sharedkerns are unscaled and are be hashed by concatenated indexes -function tfm.check_base_kerns(tfmdata) - if tfm.share_base_kerns then - local sharedkerns = tfmdata.sharedkerns - if sharedkerns then - local basekerns = { } - tfmdata.basekerns = basekerns - return sharedkerns, basekerns - end - end - return nil, nil -end +--~ function tfm.check_base_kerns(tfmdata) +--~ if tfm.share_base_kerns then +--~ local sharedkerns = tfmdata.sharedkerns +--~ if sharedkerns then +--~ local basekerns = { } +--~ tfmdata.basekerns = basekerns +--~ return sharedkerns, basekerns +--~ end +--~ end +--~ return nil, nil +--~ end -function tfm.prepare_base_kerns(tfmdata) - if tfm.share_base_kerns and not tfmdata.sharedkerns then - local sharedkerns = { } - tfmdata.sharedkerns = sharedkerns - for u, chr in next, tfmdata.characters do - local kerns = chr.kerns - if kerns then - local hash = concat(sortedkeys(kerns), " ") - local base = sharedkerns[hash] - if not base then - sharedkerns[hash] = kerns - else - chr.kerns = base - end - end - end - end -end +--~ function tfm.prepare_base_kerns(tfmdata) +--~ if tfm.share_base_kerns and not tfmdata.sharedkerns then +--~ local sharedkerns = { } +--~ tfmdata.sharedkerns = sharedkerns +--~ for u, chr in next, tfmdata.characters do +--~ local kerns = chr.kerns +--~ if kerns then +--~ local hash = concat(sortedkeys(kerns), " ") +--~ local base = sharedkerns[hash] +--~ if not base then +--~ sharedkerns[hash] = kerns +--~ else +--~ chr.kerns = base +--~ end +--~ end +--~ end +--~ end +--~ end -- we can have cache scaled characters when we are in node mode and don't have -- protruding and expansion: hash == fullname @ size @ protruding @ expansion @@ -229,7 +229,7 @@ local charactercache = { } -- has_italic flag. Some more flags will be added in the future. function tfm.do_scale(tfmtable, scaledpoints) - tfm.prepare_base_kerns(tfmtable) -- optimalization + -- tfm.prepare_base_kerns(tfmtable) -- optimalization if scaledpoints < 0 then scaledpoints = (- scaledpoints/1000) * tfmtable.designsize -- already in sp end @@ -303,7 +303,7 @@ t.colorscheme = tfmtable.colorscheme local defaultheight = luatex and luatex.defaultheight or 0 local defaultdepth = luatex and luatex.defaultdepth or 0 -- experimental, sharing kerns (unscaled and scaled) saves memory - local sharedkerns, basekerns = tfm.check_base_kerns(tfmtable) + -- local sharedkerns, basekerns = tfm.check_base_kerns(tfmtable) -- loop over descriptions (afm and otf have descriptions, tfm not) -- there is no need (yet) to assign a value to chr.tonunicode local scaledwidth = defaultwidth * hdelta @@ -311,6 +311,7 @@ t.colorscheme = tfmtable.colorscheme local scaleddepth = defaultdepth * vdelta local stackmath = tfmtable.ignore_stack_math ~= true local private = fonts.private + local sharedkerns = { } for k,v in next, characters do local chr, description, index if ischanged then @@ -471,19 +472,26 @@ t.colorscheme = tfmtable.colorscheme if not nodemode then local vk = v.kerns if vk then - if sharedkerns then - local base = basekerns[vk] -- hashed by table id, not content - if not base then - base = {} - for k,v in next, vk do base[k] = v*hdelta end - basekerns[vk] = base - end - chr.kerns = base - else - local tt = {} - for k,v in next, vk do tt[k] = v*hdelta end - chr.kerns = tt + --~ if sharedkerns then + --~ local base = basekerns[vk] -- hashed by table id, not content + --~ if not base then + --~ base = {} + --~ for k,v in next, vk do base[k] = v*hdelta end + --~ basekerns[vk] = base + --~ end + --~ chr.kerns = base + --~ else + --~ local tt = {} + --~ for k,v in next, vk do tt[k] = v*hdelta end + --~ chr.kerns = tt + --~ end + local s = sharedkerns[vk] + if not s then + local s = {} + for k,v in next, vk do s[k] = v*hdelta end + sharedkerns[vk] = s end + chr.kerns = s end local vl = v.ligatures if vl then @@ -600,21 +608,19 @@ local lastfont = nil -- -- flushing the kern and ligature tables from memory saves a lot (only -- base mode) but it complicates vf building where the new characters --- demand this data - ---~ for id, f in pairs(fonts.ids) do -- or font.fonts ---~ local ffi = font.fonts[id] ---~ f.characters = ffi.characters ---~ f.kerns = ffi.kerns ---~ f.ligatures = ffi.ligatures ---~ end +-- demand this data .. solution: functions that access them function tfm.cleanup_table(tfmdata) -- we need a cleanup callback, now we miss the last one if tfm.auto_cleanup then -- ok, we can hook this into everyshipout or so ... todo if tfmdata.type == 'virtual' or tfmdata.virtualized then for k, v in next, tfmdata.characters do - if v.commands then v.commands = nil end + if v.commands then v.commands = nil end + -- if v.kerns then v.kerns = nil end end + else + -- for k, v in next, tfmdata.characters do + -- if v.kerns then v.kerns = nil end + -- end end end end |