148 lines
3.4 KiB
PostScript
148 lines
3.4 KiB
PostScript
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% Copyright (C) 2002 Aladdin Enterprises. 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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% 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_ciecs2.ps,v 1.1 2002/08/22 07:12:28 henrys Exp $
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% Level 2 CIEBased color space method dictionaries.
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%
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% The validation routines in these method dictionaries perform only
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% partial validations; the .setcie* operators will perform the rest.
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%
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% verify that at least one of the CIEBased color spaces is supported
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true
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{ /.setcieaspace /.setcieabcspace /.setciedefspace /.setciedefgspace }
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{
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where
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{ pop not exit }
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if
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}
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forall
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{ currentfile closefile }
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if
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.currentglobal true .setglobal
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.cspace_util begin
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%
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% <obj> check_cie_cspace <obj>
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%
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% Perform a very basic check that an object is a CIEBased color space
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% array.
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%
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/check_cie_cspace
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{
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//check_array exec
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dup 1 get type /dicttype ne
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//setcspace_typecheck
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if
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}
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bind def
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/.setcieaspace where
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{
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pop
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colorspacedict
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/CIEBasedA
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mark
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/cs_potential_indexed_base true
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/cs_potential_pattern_base true
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/cs_potential_alternate true
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/cs_potential_icc_alternate true
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/cs_get_ncomps //ncomps_1
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/cs_get_range
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{
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1 get /RangeA .knownget not
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{ //dflt_range_1 }
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if
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}
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bind
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/cs_get_default_color { pop 0 } bind
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/cs_get_currentgray //no_currentgray
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/cs_get_currentrgb //no_currentrgb
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/cs_get_currentcmyk //no_currentcmyk
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/cs_validate //check_cie_cspace
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/cs_substitute //dup_1
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/cs_prepare {}
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/cs_install
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{
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NOCIE
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{ pop /DeviceGray //.cs_install exec }
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{ 1 get .setcieaspace }
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ifelse
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}
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bind
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/cs_prepare_color //validate_1
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/cs_complete_setcolor //pop_1
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.dicttomark
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put
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}
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if
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/.setcieabcspace where
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{
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pop
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colorspacedict
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/CIEBasedABC
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mark
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/cs_potential_indexed_base true
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/cs_potential_pattern_base true
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/cs_potential_alternate true
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/cs_potential_icc_alternate true
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/cs_get_ncomps //ncomps_3
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/cs_get_range
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{
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1 get /RangeABC .knownget not
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{ //dflt_range_3 }
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if
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}
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bind
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/cs_get_default_color { pop 0 0 0 } bind
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/cs_get_currentgray //no_currentgray
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/cs_get_currentrgb //no_currentrgb
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/cs_get_currentcmyk //no_currentcmyk
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/cs_validate //check_cie_cspace
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/cs_substitute //dup_1
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/cs_prepare {}
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/cs_install
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{
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NOCIE
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{ pop /DeviceRGB //.cs_install exec }
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{ 1 get .setcieabcspace }
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ifelse
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}
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bind
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/cs_prepare_color //validate_3
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/cs_complete_setcolor //pop_1
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.dicttomark
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put
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}
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if
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end % .cspace_util
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.setglobal
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