79 lines
2.2 KiB
PostScript
79 lines
2.2 KiB
PostScript
% 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_devpxl.ps,v 1.1 2002/08/22 07:12:28 henrys Exp $
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% DevicePixel color space method dictionaries.
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%
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% This file implements the DevicePixel color space. See gs_cspace.ps
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% for information.
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%
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% The DevicePixel color space includes a single parameter, the bit
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% depth of the device color representation. Color is expressed as
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% single integers in an opaque, device-specific format.
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%
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% verify that the DevicePixel color space is supported
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/.setdevicepixelspace where
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{ pop }
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{ currentfile closefile }
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ifelse
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.currentglobal true .setglobal
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.cspace_util begin
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colorspacedict
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/DevicePixel
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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 { [ exch 1 get 1 exch bitshift 1 sub ] } bind
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/cs_get_default_color { pop 0 } bind % no good default
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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
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{
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//check_array exec
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dup 1 get dup type /integertype ne
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//setcspace_typecheck
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if
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dup 0 lt
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//setcspace_rangecheck
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if
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31 gt % 31 bits is an implementation limit
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{ /setcolorspace cvx /limitcheck signalerror }
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if
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}
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bind
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/cs_substitute //dup_1
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/cs_prepare {}
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/cs_install { .setdevicepixelspace } 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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end % .cspace_util
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.setglobal
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