home *** CD-ROM | disk | FTP | other *** search
- % Copyright (C) 1996, 1997 Aladdin Enterprises. All rights reserved.
- %
- % This file is part of Ghostscript.
- %
- % Ghostscript is distributed in the hope that it will be useful, but
- % WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- % to anyone for the consequences of using it or for whether it serves any
- % particular purpose or works at all, unless he says so in writing. Refer
- % to the Ghostscript General Public License for full details.
- %
- % Everyone is granted permission to copy, modify and redistribute
- % Ghostscript, but only under the conditions described in the Ghostscript
- % General Public License. A copy of this license is supposed to have been
- % given to you along with Ghostscript so you can know your rights and
- % responsibilities. It should be in a file named COPYING. Among other
- % things, the copyright notice and this notice must be preserved on all
- % copies.
-
- % viewcmyk.ps
- % Display a raw CMYK file.
- % Requires the colorimage operator.
- % If SCALE is defined, maps input pixels to output pixels with that scale;
- % if SCALE is undefined, scales the image to fit the page.
- % If BITS is defined, it is the number of bits per sample (1,2,4,8,12);
- % if BITS is undefined, its default value is 1.
-
- /viewcmyk % <filename> <width> viewcmyk -
- { 20 dict begin
- /w exch def
- /fname exch def
- /bpc /BITS where { pop BITS } { 1 } ifelse def
- /f fname (r) file def
- mark fname status pop pop pop /flen exch def cleartomark
- /h flen w bpc 4 mul mul 7 add 8 idiv idiv def
- (Dimensions: ) print [w h] == flush
- % Set up scaling.
- /SCALE where
- { pop
- % Map pixels SCALE-for-1. Assume orthogonal transformation.
- w 1 0 dtransform add abs div SCALE mul
- h 0 1 dtransform add abs div SCALE mul
- }
- { % Scale the image (uniformly) to fit the page.
- clippath pathbbox pop pop translate
- pathbbox 4 2 roll pop pop
- h div w mul min dup
- }
- ifelse scale
- w h bpc [w 0 0 h neg 0 h] f false 4 colorimage
- showpage
- f closefile
- end
- } bind def
-
- % If the program was invoked from the command line, run it now.
- [ shellarguments
- { counttomark 2 eq
- { cvi viewcmyk
- }
- { cleartomark
- (Usage: gs -- viewcmyk.ps filename.cmyk width\n) print
- ( e.g.: gs -- viewcmyk.ps my.cmyk 2550\n) print flush
- }
- ifelse
- }
- { pop
- }
- ifelse
-