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% Copyright (C) 1990, 2000 Aladdin Enterprises. All rights reserved.
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% This software is provided AS-IS with no warranty, either express or
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% This software is distributed under license and may not be copied,
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% modified or distributed except as expressly authorized under the terms
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% of the license contained in the file LICENSE in this distribution.
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% For more information about licensing, please refer to
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% http://www.ghostscript.com/licensing/. For information on
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% commercial licensing, go to http://www.artifex.com/licensing/ or
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% contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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% San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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% $Id: gs_lev2.ps 12268 2011-03-10 06:19:17Z alexcher $
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% Initialization file for Level 2 functions.
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% When this is run, systemdict is still writable,
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% but (almost) everything defined here goes into level2dict.
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/.checksetparams { % <newdict> <opname> <checkdict>
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% .checksetparams <newdict>
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% .checksetparams <newdict>
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% Stack: newdict opname checkdict key newvalue
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% Stack: newdict opname checkdict key newvalue
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3 copy 3 1 roll .knownget {
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pop pop pop load /typecheck signalerror
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pop pop pop load /typecheck signalerror
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dup type /stringtype eq {
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pop pop pop load /invalidaccess signalerror
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pop pop pop load /invalidaccess signalerror
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% be changed. Also be careful to preserve 'executable' state.
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/.copyparam { % <value> .copyparam <value'>
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dup type /arraytype eq {
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.currentglobal //true .setglobal exch
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.currentglobal //true .setglobal exch
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dup wcheck exch dup xcheck exch % original attributes
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dup length array exch dup { % stack: destination_array original_array original_array
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dup type /arraytype eq {
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dup 2 index ne { % avoid recursion
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dup 2 index ne { % avoid recursion
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.copyparam % recurse to handle composite array elements
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% this array self referenced, do it again (yuk!)
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pop 1 index % get copy of destination array
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% this array self referenced, do it again (yuk!)
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pop 1 index % get copy of destination array
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dup type /stringtype eq {
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ifelse 3 1 roll % keep arrays on top
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} forall pop astore
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% We break out setuserparams into a separate procedure so that setvmxxx
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% can use it without affecting the command in case of an error.
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/.setuserparams2 {
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% Check that we will be able to set the PostScript-level
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% Check that we will be able to set the PostScript-level
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/setuserparams /psuserparams .systemvar .checksetparams
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% Set the C-level user params. If this succeeds, we know that
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% the password check succeeded.
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% Set the C-level user params. If this succeeds, we know that
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% the password check succeeded.
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dup .setuserparams
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% Now set the PostScript-level params.
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% The interpreter may have adjusted the values of some of the
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% parameters, so we have to read them back.
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% Now set the PostScript-level params.
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% The interpreter may have adjusted the values of some of the
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% parameters, so we have to read them back.
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/userparams .systemvar 2 index known {
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psuserparams 2 index known not {
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pop dup .getuserparam
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pop dup .getuserparam
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% special protection for the security related parameters
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[ /PermitFileReading /PermitFileWriting /PermitFileControl ]
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{ 2 index eq { % force all strings to readonly but make sure the
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% array is in the correct VM space (local/global).
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currentglobal exch dup gcheck setglobal
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dup length array exch { readonly exch } forall astore
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% array is in the correct VM space (local/global).
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currentglobal exch dup gcheck setglobal
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dup length array exch { readonly exch } forall astore
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% protect top level of parameters that we copied
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% A context switch might have occurred during the above loop,
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% causing the interpreter-level parameters to be reset.
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% Set them again to the new values. From here on, we are safe,
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% since a context switch will consult userparams.
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% A context switch might have occurred during the above loop,
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% causing the interpreter-level parameters to be reset.
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% Set them again to the new values. From here on, we are safe,
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% since a context switch will consult userparams.
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/setuserparams { % <dict> setuserparams -
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mark .currentsystemparams //pssystemparams { } forall .dicttomark
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/setsystemparams { % <dict> setsystemparams -
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% Check that we will be able to set the PostScript-level
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% Check that we will be able to set the PostScript-level
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dup pop % check # of args
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/SAFETY .systemvar /safe get {
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% SAFER mode disallows some changes
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[ /GenericResourceDir /FontResourceDir /GenericResourcePathSep ] {
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2 copy .knownget {
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exch //pssystemparams exch .knownget {
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exch //pssystemparams exch .knownget {
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ne { /setsystemparams /invalidaccess signalerror } if
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/setsystemparams //pssystemparams mark exch {
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type cvlit /.checkparamtype cvx 2 packedarray cvx
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} forall .dicttomark .checksetparams
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% Set the C-level system params. If this succeeds, we know that
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% the password check succeeded.
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% Set the C-level system params. If this succeeds, we know that
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% the password check succeeded.
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dup .setsystemparams
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% Now set the PostScript-level params. We must copy local strings
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% Now set the PostScript-level params. We must copy local strings
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{ //pssystemparams 2 index known
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{ % Stack: key newvalue
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% protect top level parameters that we copied
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% protect top level parameters that we copied
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dup type dup /arraytype eq exch /stringtype eq or { readonly } if
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//pssystemparams 3 1 roll .forceput % pssystemparams is read-only
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//pssystemparams 3 1 roll .forceput % pssystemparams is read-only
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/setcacheparams {
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% The MaxFontCache parameter is a system parameter, which we might
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% not be able to set. Fortunately, this doesn't matter, because
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% system parameters don't have to be synchronized between this code
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% The MaxFontCache parameter is a system parameter, which we might
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% not be able to set. Fortunately, this doesn't matter, because
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% system parameters don't have to be synchronized between this code
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counttomark 1 add copy setcacheparams
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currentcacheparams % mark size lower upper
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%**************** The definition of startjob is not complete yet, since
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% it doesn't reset stdin/stdout.
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/.startnewjob { % <exit_bool> <password_level>
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serverdict /.jobsave get dup //null eq { pop } { restore } ifelse
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serverdict /.jobsave //null put
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serverdict /.jobsavelevel 0 put
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serverdict /.adminjob 3 -1 roll 1 gt put
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serverdict /.jobsave save put
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serverdict /.jobsavelevel 1 put
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.userdict /quit { stop } .bind put % CET 28-10 requires a procedure
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% Reset the interpreter state.
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% Reset the interpreter state.
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clear cleardictstack
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//false setglobal
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2 vmreclaim % Make sure GC'ed memory is reclaimed and freed.
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/.startjob { % <exit_bool> <password> <finish_proc>
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% .startjob <ok_bool>
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% .startjob <ok_bool>
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vmstatus pop pop serverdict /.jobsavelevel get eq
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2 .argindex .checkpassword 0 gt and {
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exch .checkpassword exch count 3 roll count 3 sub { pop } repeat
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% Reset the e-stack back to the 2 .stopped in .runexec,
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% passing the finish_proc to be executed afterwards.
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% Reset the e-stack back to the 2 .stopped in .runexec,
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% passing the finish_proc to be executed afterwards.
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} { % Password check failed
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pop pop pop //false
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/startjob { % <exit_bool> <password> startjob <ok_bool>
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% This is a hack. We really need some way to indicate explicitly
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% to the interpreter that we are under control of a job server.
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% This is a hack. We really need some way to indicate explicitly
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% to the interpreter that we are under control of a job server.
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1 .argindex type /booleantype ne {
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/startjob .systemvar /typecheck signalerror
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{ .startnewjob //true } .startjob
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% The procedure to undo the job encapsulation
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% The procedure to undo the job encapsulation
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clear cleardictstack
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serverdict /.jobsave get dup //null eq { pop } { restore } ifelse
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mark .currentuserparams .dicttomark /ICCProfilesDir get
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(default_gray.icc) concatstrings status {
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pop pop pop pop % current value was OK. Just clean up stack
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% Search for valid (iccprofiles) directory as a sibling to (Resource)
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% and set it as a default if found.
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(Resource) search {
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exch pop exch pop (iccprofiles) concatstrings
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.file_name_separator concatstrings
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//systemdict /SourceObjectICC .knownget{
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mark exch /SourceObjectICC exch .dicttomark
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//systemdict /OverrideICC .knownget{
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mark exch /OverrideICC exch .dicttomark
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//systemdict /OverrideRI .knownget{
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mark exch /OverrideRI exch .dicttomark
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pop % currentsystemparams
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% Flag the current dictionary so it will be swapped when we
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(*) 3 1 roll /IODevice resourceforall
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/devstatus { % <(%disk*%)> devstatus <searchable> <writable>
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% <hasNames> <mounted> <removable> <searchOrder>
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% <freePages> <size> true
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% <string> devstatus false
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% <hasNames> <mounted> <removable> <searchOrder>
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% <freePages> <size> true
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% <string> devstatus false
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dup length 5 ge {
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dup 0 5 getinterval (%disk) eq {
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dup /IODevice resourcestatus {
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pop pop dup currentdevparams
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exch dup /Writeable get
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exch dup /HasNames get
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exch dup /Mounted get
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exch dup /Removable get
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exch dup /SearchOrder get
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exch /LogicalSize get
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pop pop dup currentdevparams
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exch dup /Writeable get
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exch dup /HasNames get
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exch dup /Mounted get
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exch dup /Removable get
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exch dup /SearchOrder get
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exch /LogicalSize get
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/Separation [] def
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% ------ CIE color rendering ------ %
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% Define findcolorrendering and a default ColorRendering ProcSet.
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/findcolorrendering { % <intentname> findcolorrendering
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% Adobe interpreters report /findcolorrendering (literal name), not the
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% operator itself, if an error occurs in findcolorrendering.
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/findcolorrendering {
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/ColorRendering /ProcSet findresource
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1 .argindex dup type /nametype eq { .namestring } if (.) concatstrings
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1 index /GetPageDeviceName get exec dup type /nametype eq { .namestring } if (.) concatstrings
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2 index /GetHalftoneName get exec dup type /nametype eq { .namestring } if
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concatstrings concatstrings cvn % stack: intentname procset crdname
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dup /ColorRendering resourcestatus {
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pop pop exch pop exch pop //true
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pop /GetSubstituteCRD get exec //false
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/ColorRendering /ProcSet findresource
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1 .argindex dup type /nametype eq { .namestring } if (.) concatstrings
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1 index /GetPageDeviceName get exec dup type /nametype eq { .namestring } if (.) concatstrings
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2 index /GetHalftoneName get exec dup type /nametype eq { .namestring } if
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concatstrings concatstrings cvn % stack: intentname procset crdname
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dup /ColorRendering resourcestatus {
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pop pop exch pop exch pop //true
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pop /GetSubstituteCRD get exec //false
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/.setcolorrendering1 where { pop } { (%END CRD) .skipeof } ifelse
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.colorrenderingtypes 1 {
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% Adobe ProcSet "Adobe_AGM_Core 2.0 0" places an /Intent key into CRD's
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% Adobe ProcSet "Adobe_AGM_Core 2.0 0" places an /Intent key into CRD's
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dup /Intent .knownget {
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//.renderingintentdict exch .knownget { .setrenderingintent } if
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% Bradford Cone Space
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/MatrixPQR [ 0.8951 -0.7502 0.0389
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0.2664 1.7135 -0.0685
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-0.1614 0.0367 1.0296] readonly
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0.2664 1.7135 -0.0685
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-0.1614 0.0367 1.0296] readonly
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/MatrixLMN [ 3.240449 -0.969265 0.055643
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-1.537136 1.876011 -0.204026
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-0.498531 0.041556 1.057229 ] readonly
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-1.537136 1.876011 -0.204026
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-0.498531 0.041556 1.057229 ] readonly
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% Inverse sRGB gamma transform
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/EncodeABC [ { dup 0.00304 le
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% The implementations have been moved to C for performance.
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[ { .TransformPQR_scale_WB0 } bind
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{ .TransformPQR_scale_WB1 } bind
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{ .TransformPQR_scale_WB1 } bind
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{ .TransformPQR_scale_WB2 } bind
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.dicttomark setcolorrendering
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.dicttomark readonly
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% Special type to install
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% sRGB ICC profile color space
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/CIEsRGBICC [ /ICCBased
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/DataSource (srgb)
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/Alternate [/DeviceRGB]
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% Special type to install
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% sGray ICC profile color space
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/CIEsGRAYICC [ /ICCBased
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/DataSource (sgray)
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/Alternate [/DeviceGray]
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% ------ Painting ------ %
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% A straightforward definition of execform that doesn't actually
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% do any caching.
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% This is a separate operator so that the stacks will be restored
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% properly if an error occurs.
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% This is a separate operator so that the stacks will be restored
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% properly if an error occurs.
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dup /Matrix get concat
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dup /BBox get aload pop
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exch 3 index sub exch 2 index sub rectclip
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/makepattern .systemvar /rangecheck signalerror
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.currentglobal //false .setglobal exch
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% Stack: proto matrix global buildproc
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% Stack: proto matrix global buildproc
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3 index dup length 1 add dict .copydict
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% Stack: proto matrix global buildproc newdict
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% Stack: proto matrix global buildproc newdict
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3 index 3 -1 roll exec
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% Stack: proto matrix global newdict instance
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% Stack: proto matrix global newdict instance
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% Create an 'Implementation' entry for the pattern dict. The PRLM 3rd says
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% this about the contents of Implementation: "The type and value of this
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% entry are implementation-dependent." The CET (page 2 of 18-02f) expects
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1 index /Implementation 3 -1 roll
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.getCPSImode { gstate } { //null } ifelse 2 array astore
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put % put Implementation into the pattern dict.
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% Stack: proto matrix global newdict
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% Stack: proto matrix global newdict
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readonly exch .setglobal exch pop exch pop
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% We are providing these functions because we have found files created by
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% "QuarkXPress: pictwpstops filter 1.0" which produce bad shading dictionaries
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% if these operators are not defined.
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% if these operators are not defined.
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% Conditionally disable the TN 5044 psuedo-ops if NO_TN5044 specified
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/NO_TN5044 where { pop (%END TN 5044 psuedo-ops) .skipeof } if
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Resource/Init/gs_lev2.ps
