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- % Copyright (C) 1996, 1997, 1998, 1999 Aladdin Enterprises. All rights reserved.
- %
- % This file is part of Aladdin Ghostscript.
- %
- % Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author
- % or distributor accepts any responsibility for the consequences of using it,
- % or for whether it serves any particular purpose or works at all, unless he
- % or she says so in writing. Refer to the Aladdin Ghostscript Free Public
- % License (the "License") for full details.
- %
- % Every copy of Aladdin Ghostscript must include a copy of the License,
- % normally in a plain ASCII text file named PUBLIC. The License grants you
- % the right to copy, modify and redistribute Aladdin Ghostscript, but only
- % under certain conditions described in the License. Among other things, the
- % License requires that the copyright notice and this notice be preserved on
- % all copies.
-
- % $Id: gs_pdfwr.ps,v 1.1 2000/03/09 08:40:40 lpd Exp $
- % PDF writer additions to systemdict.
-
- % This file should be included iff the pdfwrite "device" is included
- % in the executable.
-
- % Redefine pdfmark to pass the data to the driver.
- % We use a pseudo-parameter named /pdfmark whose value is an array:
- % key1 value1 ... CTM /type
- /.pdf===dict mark
- /arraytype
- { dup xcheck { ({) (}) } { ([) (]) } ifelse
- % Stack: file obj left right
- 4 1 roll 2 index exch writestring () exch
- { exch 2 index exch writestring
- 1 index exch pdfmark===only ( )
- }
- forall pop exch writestring
- } bind
- /packedarraytype 1 index
- /dicttype
- { 1 index (<<\n) writestring
- { 2 index 3 -1 roll pdfmark===only 1 index ( ) writestring
- 1 index exch pdfmark===only dup (\n) writestring
- }
- forall (>>) writestring
- } bind
- .dicttomark readonly def
- /pdfmark===only { % <file> <obj> pdfmark===only -
- .pdf===dict 1 index type .knownget { exec } { write===only } ifelse
- } bind def
- /.pdfcvbuf 10 string def % enough for most arguments
- userdict /.pdfcvstring () put
- /.pdfcvs { % <obj> .pdfcvs <string>
- currentglobal exch false .setglobal
- /.pdfcvstring () store
- % We can't handle long values yet.
- { pop dup length 0 eq { pop } {
- /.pdfcvstring .pdfcvstring 3 -1 roll concatstrings store
- } ifelse //.pdfcvbuf
- } /NullEncode filter dup 3 -1 roll pdfmark===only
- closefile
- .setglobal .pdfcvstring
- } bind def
- /.pdfputparams { % -mark- <key1> <value1> ... .pdfputparams <result...>
- currentdevice null false counttomark 1 add 3 roll
- % Don't allow the page device to get cleared....
- {.putdeviceparams} .currentpagedevice pop {.setpagedevice} 3 .execn
- } bind def
- % Convert relevant operands to strings in an array.
- /.pdfcvsloop { % -mark- values ... markname start step .pdfcvsloop
- % [values ... ctm markname]
- matrix currentmatrix .pdfcvs 4 1 roll
- counttomark 1 add 2 roll ] 3 1 roll
- % Stack: values start step
- 2 index length 3 sub { 2 copy 2 copy get .pdfcvs put pop } for
- } bind def
- /.pdfcvsall { % -mark- values ... markname .pdfcvsall <<same>>
- 0 1 .pdfcvsloop
- } bind def
- /.pdfcvseven { % -mark- key value ... markname .pdfcvseven <<same>>
- 1 2 .pdfcvsloop
- } bind def
- /.pdfcvsnone { % -mark- values ... markname .pdfcvsnone <<same>>
- 100000 1 .pdfcvsloop
- } bind def
- /.pdfcvsfirst { % -mark- first values ... markname .pdfcvsfirst<<same>>
- .pdfcvsnone
- dup 0 2 copy get .pdfcvs put
- } bind def
- % The procedures in the following dictionary are called with the entire
- % pdfmark operand list (including the pdfmark name) on the stack;
- % they may modify this ad lib. They must call .pdfcvsxxx.
- /.pdfmarkparams mark
- % Unpack a dictionary for PUT, and don't convert stream data.
- /PUT {
- counttomark 3 eq {
- 1 index type /dicttype eq {
- pop { } forall /.PUTDICT .pdfcvsall
- } {
- pop dup type /filetype eq {
- % Read the file into a sequence of strings.
- % This isn't great, but it's simple.
- {
- dup 1000 string readstring not { exch exit } if
- exch
- } loop closefile
- } if
- /.PUTSTREAM .pdfcvsfirst
- } ifelse
- } {
- .pdfcvsall
- } ifelse
- } bind
- % Unpack the array for PUTINTERVAL.
- /PUTINTERVAL {
- pop aload pop /.PUTINTERVAL .pdfcvsall
- } bind
- .dicttomark readonly def
- /.pdfparamerror { % ? ? ? -mark- ... <errname> <opname> .pdfparamerror -
- counttomark 4 add 2 roll cleartomark pop pop pop
- .systemvar exch signalerror
- } bind def
- /pdfmark { % -mark- <key> <value> ... <markname> pdfmark -
- counttomark 1 add copy
- //.pdfmarkparams 1 index .knownget { exec } { .pdfcvsall } ifelse
- mark /pdfmark 3 -1 roll .pdfputparams
- dup type /booleantype ne {
- /pdfmark .pdfparamerror
- } if cleartomark
- } odef
- userdict /pdfmark .undef
- currentdict /.pdfmarkparams .undef
-
- % Define setdistillerparams / currentdistillerparams.
- % Distiller parameters are currently treated as device parameters.
- /.distillerparamkeys mark
- % General parameters -- all distillers
- % ****** NOTE: StartPage and EndPage are disabled because
- % ****** EndPage clashes with a page device parameter.
- /ASCII85EncodePages { }
- /AutoRotatePages { }
- /Binding { }
- /CompressPages { }
- /DefaultRenderingIntent { }
- /DetectBlends { }
- /DoThumbnails { }
- % /EndPage { }
- /ImageMemory { }
- /LockDistillerParams { }
- /LZWEncodePages { }
- /OPM { }
- /PreserveHalftoneInfo { }
- /PreserveOPIComments { }
- /PreserveOverprintSettings { }
- % /StartPage { }
- /TransferFunctionInfo { }
- /UCRandBGInfo { }
- /UseFlateCompression { }
- % General parameters -- PDF writer
- /CoreDistVersion { }
- /CompatibilityLevel { }
- /Optimize { }
- /ParseDSCCommentsForDocInfo { }
- /ParseDSCComments { }
- /EmitDSCWarnings { }
- /CreateJobTicket { }
- /PreserveEPSInfo { }
- /AutoPositionEPSFile { }
- /PreserveCopyPage { }
- /UsePrologue { }
- % Color sampled image parameters
- /ColorACSDict { }
- /AntiAliasColorImages { }
- /AutoFilterColorImages { }
- /ColorImageDepth { }
- /ColorImageDict { }
- /DownsampleColorImages { }
- /ColorImageDownsampleThreshold { }
- /ColorImageDownsampleType { }
- /EncodeColorImages { }
- /ColorImageFilter { }
- /ColorImageResolution { }
- % Color processing parameters
- /CalCMYKProfile { }
- /CalGrayProfile { }
- /CalRGBProfile { }
- /sRGBProfile { }
- /ColorConversionStrategy { }
- /ConvertCMYKImagesToRGB { }
- /ConvertImagesToIndexed { }
- % Grayscale sampled image parameters
- /GrayACSDict { }
- /AntiAliasGrayImages { }
- /AutoFilterGrayImages { }
- /GrayImageDepth { }
- /GrayImageDict { }
- /DownsampleGrayImages { }
- /GrayImageDownsampleThreshold { }
- /GrayImageDownsampleType { }
- /EncodeGrayImages { }
- /GrayImageFilter { }
- /GrayImageResolution { }
- % Monochrome sampled image parameters
- /AntiAliasMonoImages { }
- /MonoImageDepth { }
- /MonoImageDict { }
- /DownsampleMonoImages { }
- /MonoImageDownsampleThreshold { }
- /MonoImageDownsampleType { }
- /EncodeMonoImages { }
- /MonoImageFilter { }
- /MonoImageResolution { }
- % Font embedding parameters
- /AlwaysEmbed
- { dup length 0 gt
- { dup 0 get false eq
- { dup length 1 sub 1 exch getinterval exch pop /~AlwaysEmbed exch
- } if
- } if
- }
- /NeverEmbed
- { dup length 0 gt
- { dup 0 get false eq
- { dup length 1 sub 1 exch getinterval exch pop /~NeverEmbed exch
- } if
- } if
- }
- /CannotEmbedFontPolicy { }
- /EmbedAllFonts { }
- /MaxSubsetPct { }
- /SubsetFonts { }
- .dicttomark readonly def
- /.distillerdevice
- { currentdevice .devicename /pdfwrite eq
- { currentdevice }
- { /pdfwrite finddevice }
- ifelse
- } bind def
- /setdistillerparams { % <dict> setdistillerparams -
- .distillerdevice null false mark 4 index {
- //.distillerparamkeys 2 index .knownget { exec } { pop pop } ifelse
- } forall .putdeviceparams
- dup type /booleantype ne {
- /setdistillerparams .pdfparamerror
- } {
- pop pop pop
- } ifelse
- } odef
- /currentdistillerparams % - currentdistillerparams <dict>
- { .distillerdevice //.distillerparamkeys .getdeviceparams .dicttomark
- } odef
-
- % Patch 'where' so that the distillerparams operators are only visible
- % if the pdfwrite device is the current one, for the benefit of badly
- % designed PostScript files that "know" they have to do something different
- % if a distiller is processing them.
- .wheredict /currentdistillerparams {
- currentdevice .devicename /pdfwrite eq {
- .where
- } {
- .where pop dup //systemdict eq { pop false } { true } ifelse
- } ifelse
- } bind put
- .wheredict /setdistillerparams .wheredict /currentdistillerparams get put
-