diff options
Diffstat (limited to 'tex/context/base/mkiv/lpdf-pde.lua')
| -rw-r--r-- | tex/context/base/mkiv/lpdf-pde.lua | 162 |
1 files changed, 83 insertions, 79 deletions
diff --git a/tex/context/base/mkiv/lpdf-pde.lua b/tex/context/base/mkiv/lpdf-pde.lua index 8c5c6ffc1..b159df24f 100644 --- a/tex/context/base/mkiv/lpdf-pde.lua +++ b/tex/context/base/mkiv/lpdf-pde.lua @@ -1062,92 +1062,96 @@ if images then do local page = pdfdoc.pages[pagenumber or 1] local pageinfo = querypdf(pdfdoc,pagenumber) local contents = page.Contents - local xref = pdfdoc.__xrefs__ - local copied = pdfdoc.__copied__ - if compact and lpdf_epdf.plugin then - plugins = lpdf_epdf.plugin(pdfdoc,xref,copied,page) - end - local xobject = pdfdictionary { - Type = pdfconstant("XObject"), - Subtype = pdfconstant("Form"), - FormType = 1, - Group = copyobject(xref,copied,page,"Group"), - LastModified = copyobject(xref,copied,page,"LastModified"), - Metadata = copyobject(xref,copied,page,"Metadata"), - PieceInfo = copyobject(xref,copied,page,"PieceInfo"), - Resources = copyresources(pdfdoc,xref,copied,page), - SeparationInfo = copyobject(xref,copied,page,"SeparationInfo"), - } + attr - if attributes then - for k, v in expanded(attributes) do - page[k] = v -- maybe nested + if contents then + local xref = pdfdoc.__xrefs__ + local copied = pdfdoc.__copied__ + if compact and lpdf_epdf.plugin then + plugins = lpdf_epdf.plugin(pdfdoc,xref,copied,page) end - end - local content = "" - local nolength = nil - local ctype = contents.__type__ - -- we always recompress because image object streams can not be - -- influenced (yet) - if ctype == stream_object_code then - if stripmarked then - content = contents() -- uncompressed - local stripped = lpdf_epdf.stripcontent(content) - if stripped ~= content then - -- report("%i bytes stripped on page %i",#content-#stripped,pagenumber or 1) - content = stripped + local xobject = pdfdictionary { + Type = pdfconstant("XObject"), + Subtype = pdfconstant("Form"), + FormType = 1, + Group = copyobject(xref,copied,page,"Group"), + LastModified = copyobject(xref,copied,page,"LastModified"), + Metadata = copyobject(xref,copied,page,"Metadata"), + PieceInfo = copyobject(xref,copied,page,"PieceInfo"), + Resources = copyresources(pdfdoc,xref,copied,page), + SeparationInfo = copyobject(xref,copied,page,"SeparationInfo"), + } + attr + if attributes then + for k, v in expanded(attributes) do + page[k] = v -- maybe nested end - elseif recompress then - content = contents() -- uncompressed - else - local Filter = copyobject(xref,copied,contents,"Filter") - local Length = copyobject(xref,copied,contents,"Length") - if Length and Filter then - nolength = true - xobject.Length = Length - xobject.Filter = Filter - content = contents(false) -- uncompressed - else + end + local content = "" + local nolength = nil + local ctype = contents.__type__ + -- we always recompress because image object streams can not be + -- influenced (yet) + if ctype == stream_object_code then + if stripmarked then + content = contents() -- uncompressed + local stripped = lpdf_epdf.stripcontent(content) + if stripped ~= content then + -- report("%i bytes stripped on page %i",#content-#stripped,pagenumber or 1) + content = stripped + end + elseif recompress then content = contents() -- uncompressed + else + local Filter = copyobject(xref,copied,contents,"Filter") + local Length = copyobject(xref,copied,contents,"Length") + if Length and Filter then + nolength = true + xobject.Length = Length + xobject.Filter = Filter + content = contents(false) -- uncompressed + else + content = contents() -- uncompressed + end end + elseif ctype == array_object_code then + content = { } + for i=1,#contents do + content[i] = contents[i]() -- uncompressed + end + content = concat(content," ") end - elseif ctype == array_object_code then - content = { } - for i=1,#contents do - content[i] = contents[i]() -- uncompressed + -- still not nice: we double wrap now + plugins = nil + local rotation = pageinfo.rotation + local boundingbox = pageinfo.boundingbox + local transform = nil + if rotation == 90 then + transform = 3 + elseif rotation == 180 then + transform = 2 + elseif rotation == 270 then + transform = 1 + elseif rotation > 1 and rotation < 4 then + transform = rotation end - content = concat(content," ") - end - -- still not nice: we double wrap now - plugins = nil - local rotation = pageinfo.rotation - local boundingbox = pageinfo.boundingbox - local transform = nil - if rotation == 90 then - transform = 3 - elseif rotation == 180 then - transform = 2 - elseif rotation == 270 then - transform = 1 - elseif rotation > 1 and rotation < 4 then - transform = rotation + xobject.BBox = pdfarray { + boundingbox[1] * bpfactor, + boundingbox[2] * bpfactor, + boundingbox[3] * bpfactor, + boundingbox[4] * bpfactor, + } + -- maybe like bitmaps + return createimage { -- beware: can be a img.new or a dummy + bbox = boundingbox, + transform = transform, + nolength = nolength, + nobbox = true, + notype = true, + stream = content, -- todo: no compress, pass directly also length, filter etc + attr = xobject(), + kind = images.types.stream, + } + else + -- maybe report an error end - xobject.BBox = pdfarray { - boundingbox[1] * bpfactor, - boundingbox[2] * bpfactor, - boundingbox[3] * bpfactor, - boundingbox[4] * bpfactor, - } - -- maybe like bitmaps - return createimage { -- beware: can be a img.new or a dummy - bbox = boundingbox, - transform = transform, - nolength = nolength, - nobbox = true, - notype = true, - stream = content, -- todo: no compress, pass directly also length, filter etc - attr = xobject(), - kind = images.types.stream, - } end end |