43 lines
1.5 KiB
PostScript
43 lines
1.5 KiB
PostScript
% Copyright (C) 1994 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: traceimg.ps,v 1.5 2002/06/02 12:03:28 mpsuzuki Exp $
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% traceimg.ps
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% Trace the data supplied to the 'image' operator.
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% This code currently handles only the (Level 2) dictionary form of image,
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% with a single data source and 8-bit pixels.
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/traceimage % <dict> traceimage -
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{ currentcolorspace == (setcolorspace\n) print
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(<<) print
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dup { (\t) print exch ==only ( ) print == } forall
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(>>\n) print flush
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begin /i_left Width Height mul store /i_dict currentdict store end
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{ i_left 0 le { exit } if
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i_dict /DataSource get exec
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dup type /filetype eq
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{ i_buf 0 i_left 32 .min getinterval readstring pop
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} if
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dup (%stdout) (w) file exch writehexstring (\n) print flush
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i_left exch length sub /i_left exch def
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} loop
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} bind odef
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/image /traceimage load def
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/i_left 0 def
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/i_dict null def
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/i_buf 32 string def
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