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41 lines
1.3 KiB
41 lines
1.3 KiB
% Copyright (C) 2001-2023 Artifex Software, Inc.
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% 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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% Refer to licensing information at http://www.artifex.com or contact
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% Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
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% CA 94129, USA, for further information.
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%
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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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