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% Copyright (C) 1996, 1997, 1998 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: viewcmyk.ps,v 1.5 2002/06/02 12:03:28 mpsuzuki Exp $
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% viewcmyk.ps
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% Display a raw CMYK file.
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% Requires the colorimage operator.
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% If SCALE is defined, maps input pixels to output pixels with that scale;
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% if SCALE is undefined, scales the image to fit the page.
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% If BITS is defined, it is the number of bits per sample (1,2,4,8,12);
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% if BITS is undefined, its default value is 1.
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/viewcmyk { % <filename> <width> viewcmyk -
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20 dict begin
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/w exch def
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/fname exch def
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/bpc /BITS where { pop BITS } { 1 } ifelse def
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/f fname (r) file def
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mark fname status pop pop pop /flen exch def cleartomark
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/h flen w bpc 4 mul mul 7 add 8 idiv idiv def
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(Dimensions: ) print [w h] == flush
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% Set up scaling.
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/SCALE where {
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pop
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% Map pixels SCALE-for-1. Assume orthogonal transformation.
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SCALE 1 0 dtransform add abs div
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SCALE 0 1 dtransform add abs div
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} {
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% Scale the image (uniformly) to fit the page.
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clippath pathbbox pop pop translate
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pathbbox 3 -1 roll sub h div
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3 1 roll exch sub w div .min dup
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} ifelse scale
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w h bpc [1 0 0 -1 0 h] f false 4 colorimage
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showpage
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f closefile
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end
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} bind def
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% If the program was invoked from the command line, run it now.
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[ shellarguments {
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counttomark 2 eq {
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cvi viewcmyk
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} {
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cleartomark
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(Usage: gs -- viewcmyk.ps filename.cmyk width\n) print
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( e.g.: gs -- viewcmyk.ps my.cmyk 2550\n) print flush
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} ifelse
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} {
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pop
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} ifelse
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