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111 lines
3.0 KiB
111 lines
3.0 KiB
% Copyright (C) 2001-2023 Artifex Software, Inc.
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% All Rights Reserved.
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%
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% This software is provided AS-IS with no warranty, either express or
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% implied.
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%
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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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%
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% Refer to licensing information at http://www.artifex.com or contact
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% Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
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% CA 94129, USA, for further information.
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%
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% We need LanguageLevel 2 or higher in order to have setuserparams and
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% << >> dictionaries
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languagelevel dup 2 .max .setlanguagelevel
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% ICCBased color space method dictionaries.
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% This assumes gs_ciecs2.ps has already been processed.
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.currentglobal //true .setglobal
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% gs_res.ps uses these entries in colorspacedict
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% to populate the ColorSpaceFamily resource, so we need
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% to add the supported spaces.
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%
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systemdict /colorspacedict get begin
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/ICCBased [] def
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end
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NOPSICC { (%END PSICC) .skipeof } if
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% Now set up ICC profile loading for PostScript %%BeginICCProfile sections.
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/cs-sig-dict <<
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(XYZ ) 3
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(Lab ) 3
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(Luv ) 3
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(YCbr) 3
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(Yxy ) 3
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(RGB ) 3
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(GRAY) 1
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(HSV ) 3
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(HLS ) 3
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(CMYK) 4
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(CMY ) 3
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>> readonly def
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systemdict begin
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/.ProcessICCcomment { % file comment -- file comment
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dup
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(%%BeginICCProfile) anchorsearch {
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pop pop
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DEBUG { (.ProcessICCcomment found %%BeginICCProfile) print flush } if
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% load an ICC profile defined as comments (hex encoded).
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% Ends with %%End at the start of a line. Read the data into
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% an array of strings. This string can be used directly as a
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% source for ReusableStreamDecode filter.
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%
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% stack: --file-- (%%BeginICCProfile: ...)
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1 index 0 (%%EndICCProfile) /SubFileDecode filter
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[ { counttomark 1 add index
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64000 string readhexstring
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not { exit } if
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} loop
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] exch closefile
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% make a seekable -file- out of the string array
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mark /AsyncRead //true .dicttomark /ReusableStreamDecode filter
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% stack: --file-- (%%BeginICCProfile: ...) --icc_subfile--
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dup 16 setfileposition
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dup (1234) readstring pop
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1 index 0 setfileposition
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//cs-sig-dict exch .knownget {
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3 dict begin
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/Alternate {0 /DeviceGray 0 /DeviceRGB /DeviceCMYK } 2 index get def
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/N exch def
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/DataSource exch def
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[/ICCBased currentdict]
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end
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{ setcolorspace } stopped {
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pop
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QUIET not { ( *** Unable to load ICC profile from PostScript DSC comments ***) = flush } if
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} if
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} {
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pop
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} ifelse
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} {
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pop % Not interested in this DSC comment
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} ifelse
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} .internalbind def
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currentdict /cs-sig-dict undef
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% Merge ProcessICCcomment with existing handler
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/.ProcessICCcomment load /exec load
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currentuserparams /ProcessDSCComment get
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dup //null eq {pop {pop pop}} if /exec load
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4 array astore cvx readonly
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<< /ProcessDSCComment 3 -1 roll >> setuserparams
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currentdict /.ProcessICCcomment .undef
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end % systemdict
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%END PSICC
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.setglobal
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.setlanguagelevel
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