1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
% 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.
% $Id$
% 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
|
