ref: 4757debd0b5935dae94944c35c3cac74b14aa209
dir: /sys/src/cmd/gs/lib/gs_devpxl.ps/
% Copyright (C) 2002 Aladdin Enterprises. 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.
%
% For more information about licensing, please refer to
% http://www.ghostscript.com/licensing/. For information on
% commercial licensing, go to http://www.artifex.com/licensing/ or
% contact Artifex Software, Inc., 101 Lucas Valley Road #110,
% San Rafael, CA 94903, U.S.A., +1(415)492-9861.
% $Id: gs_devpxl.ps,v 1.1 2002/08/22 07:12:28 henrys Exp $
% DevicePixel color space method dictionaries.
%
% This file implements the DevicePixel color space. See gs_cspace.ps
% for information.
%
% The DevicePixel color space includes a single parameter, the bit
% depth of the device color representation. Color is expressed as
% single integers in an opaque, device-specific format.
%
% verify that the DevicePixel color space is supported
/.setdevicepixelspace where
{ pop }
{ currentfile closefile }
ifelse
.currentglobal true .setglobal
.cspace_util begin
colorspacedict
/DevicePixel
mark
/cs_potential_indexed_base true
/cs_potential_pattern_base true
/cs_potential_alternate true
/cs_potential_icc_alternate true
/cs_get_ncomps //ncomps_1
/cs_get_range { [ exch 1 get 1 exch bitshift 1 sub ] } bind
/cs_get_default_color { pop 0 } bind % no good default
/cs_get_currentgray //no_currentgray
/cs_get_currentrgb //no_currentrgb
/cs_get_currentcmyk //no_currentcmyk
/cs_validate
{
//check_array exec
dup 1 get dup type /integertype ne
//setcspace_typecheck
if
dup 0 lt
//setcspace_rangecheck
if
31 gt % 31 bits is an implementation limit
{ /setcolorspace cvx /limitcheck signalerror }
if
}
bind
/cs_substitute //dup_1
/cs_prepare {}
/cs_install { .setdevicepixelspace } bind
/cs_prepare_color //validate_1
/cs_complete_setcolor //pop_1
.dicttomark
put
end % .cspace_util
.setglobal