diff options
Diffstat (limited to 'Master/xemtex/gslib/gs_icc.ps')
-rw-r--r-- | Master/xemtex/gslib/gs_icc.ps | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/Master/xemtex/gslib/gs_icc.ps b/Master/xemtex/gslib/gs_icc.ps new file mode 100644 index 00000000000..323462342f1 --- /dev/null +++ b/Master/xemtex/gslib/gs_icc.ps @@ -0,0 +1,115 @@ +% Copyright (C) 2001 Aladdin Enterprises. All rights reserved. +% +% This program is free software; you can redistribute it and/or modify it +% under the terms of the GNU General Public License as published by the +% Free Software Foundation; either version 2 of the License, or (at your +% option) any later version. +% +% This program is distributed in the hope that it will be useful, but +% WITHOUT ANY WARRANTY; without even the implied warranty of +% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +% Public License for more details. +% +% You should have received a copy of the GNU General Public License along +% with this program; if not, write to the Free Software Foundation, Inc., +% 59 Temple Place, Suite 330, Boston, MA, 02111-1307. + +% $Id: gs_icc.ps,v 1.2.2.1.2.1 2003/04/12 14:02:38 giles Exp $ +% PostScript portion of ICCBased color space support + +//userdict /.icc_comp_map_dict + << 1 /DeviceGray 3 /DeviceRGB 4 /DeviceCMYK >> +put + +colorspacedict /ICCBased + { + % Verify that the source object is an array, that it is at least of length + % two, and that the second entry is a readable dictionary. If we got this + % far, we know the top-level object exists and is readable, but it might + % be a dictionary. + dup type dup /arraytype ne exch /packedarraytype ne and + { /setcolorspace /typecheck signalerror } + if + dup length 2 lt + { /setcolorspace /rangecheck signalerror } + if + dup 1 get type /dicttype ne + { /setcolorspace /typecheck signalerror } + if + dup 1 get rcheck not + { /setcolorspace /invalidaccess signalerror } + if + + % Verify that the dictionary defines the key N (number of components) and + % entry is provided and has a legitimate value + dup 1 get /N .knownget + { + //.icc_comp_map_dict exch known not + { + % generate the appropriate error + /setcolorspace + 1 index 1 get /N type type /integertype ne + { /typecheck } + { /rangecheck } + ifelse + signalerror + } + if + } + { /setcolorspace /undefined signalerror } + ifelse + + % Verify DataSrouce and, if it is a string, convert it to a file + dup 1 get /DataSource .knownget + { + dup rcheck not + { pop /setcolorspace /invalidaccess signalerror } + if + type dup /stringtype eq + { + pop + 2 array copy + dup 1 + 2 copy get dup length dict copy + dup /DataSource + 2 copy get /ReusableStreamDecode filter + put + put + } + { + /filetype ne + { /setcolorspace /typecheck signalerror } + if + } + ifelse + } + { /setcolorspace /undefined signalerror } + ifelse + + % set the alternate color space to be the current color space + dup 1 get /Alternate .knownget not + { dup 1 get /N get //.icc_comp_map_dict exch get } + if + setcolorspace + + % if CIE spaces are not use, just take the alternate space + NOCIE + { pop //null } + { % check for native support + /.seticcspace where + { pop dup 1 get + % Acrobat Reader silently ignores errors with ICC profiles + % and uses the alternate color space -- do the same. + mark exch { .seticcspace } stopped + { cleartomark pop //null } + { pop } + ifelse + } + { pop //null } + ifelse + } + ifelse + } +bind put + +//userdict /.icc_comp_map_dict undef |