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% Copyright (C) 2001-2020 Artifex Software, Inc.
% All Rights Reserved.
%
% This software is provided AS-IS with no warranty, either express or
% implied.
%
% This software is distributed under license and may not be copied,
% modified or distributed except as expressly authorized under the terms
% of the license contained in the file LICENSE in this distribution.
%
% Refer to licensing information at http://www.artifex.com or contact
% Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato,
% CA 94945, U.S.A., +1(415)492-9861, for further information.
%
% We need LanguageLevel 2 or higher in order to have setuserparams and
% << >> dictionaries
languagelevel dup 2 .max .setlanguagelevel
% ICCBased color space method dictionaries.
% This assumes gs_ciecs2.ps has already been processed.
.currentglobal //true .setglobal
% gs_res.ps uses these entries in colorspacedict
% to populate the ColorSpaceFamily resource, so we need
% to add the supported spaces.
%
systemdict /colorspacedict get begin
/ICCBased [] def
end
NOPSICC { (%END PSICC) .skipeof } if
% Now set up ICC profile loading for PostScript %%BeginICCProfile sections.
/cs-sig-dict <<
(XYZ ) 3
(Lab ) 3
(Luv ) 3
(YCbr) 3
(Yxy ) 3
(RGB ) 3
(GRAY) 1
(HSV ) 3
(HLS ) 3
(CMYK) 4
(CMY ) 3
>> readonly def
systemdict begin
/.ProcessICCcomment { % file comment -- file comment
dup
(%%BeginICCProfile) anchorsearch {
pop pop
DEBUG { (.ProcessICCcomment found %%BeginICCProfile) print flush } if
% load an ICC profile defined as comments (hex encoded).
% Ends with %%End at the start of a line. Read the data into
% an array of strings. This string can be used directly as a
% source for ReusableStreamDecode filter.
%
% stack: --file-- (%%BeginICCProfile: ...)
1 index 0 (%%EndICCProfile) /SubFileDecode filter
[ { counttomark 1 add index
64000 string readhexstring
not { exit } if
} loop
] exch closefile
% make a seekable -file- out of the string array
mark /AsyncRead //true .dicttomark /ReusableStreamDecode filter
% stack: --file-- (%%BeginICCProfile: ...) --icc_subfile--
dup 16 setfileposition
dup (1234) readstring pop
1 index 0 setfileposition
//cs-sig-dict exch .knownget {
3 dict begin
/Alternate {0 /DeviceGray 0 /DeviceRGB /DeviceCMYK } 2 index get def
/N exch def
/DataSource exch def
[/ICCBased currentdict]
end
{ setcolorspace } stopped {
pop
QUIET not { ( *** Unable to load ICC profile from PostScript DSC comments ***) = flush } if
} if
} {
pop
} ifelse
} {
pop % Not interested in this DSC comment
} ifelse
} bind def
currentdict /cs-sig-dict undef
% Merge ProcessICCcomment with existing handler
/.ProcessICCcomment load /exec load
currentuserparams /ProcessDSCComment get
dup //null eq {pop {pop pop}} if /exec load
4 array astore cvx readonly
<< /ProcessDSCComment 3 -1 roll >> setuserparams
currentdict /.ProcessICCcomment .undef
end % systemdict
%END PSICC
.setglobal
.setlanguagelevel
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