[Openicc] - CM Framework - Printer Driver - output intent
rlk at alum.mit.edu
Tue Jun 21 04:55:53 PDT 2011
On Tue, 21 Jun 2011 08:39:44 +0100, Richard Hughes wrote:
> On 21 June 2011 01:17, Robert Krawitz <rlk at alum.mit.edu> wrote:
>> Gutenprint knows nothing of the original source document.
>> It receives pure raster data.
> Sure, that's true of Gutenprint but surely Gutenprint-cups is the
> component that takes the PDF document and converts it to raster data
> suitable for Gutenprint? Maybe I've misunderstood something. If so,
CUPS constructs a filter chain, where the different parts of the chain
are logically independent. The Gutenprint CUPS driver merely converts
CUPS-raster data into printer-specific bits. If the input is a PDF
file, CUPS interposes the appropriate filters to convert it to
The typical filter chain is
pdftops (core CUPS)
pstops (core CUPS)
USB backend (core CUPS)
Robert Krawitz <rlk at alum.mit.edu>
Tall Clubs International -- http://www.tall.org/ or 1-888-IM-TALL-2
Member of the League for Programming Freedom -- http://ProgFree.org
Project lead for Gutenprint -- http://gimp-print.sourceforge.net
"Linux doesn't dictate how I work, I dictate how Linux works."
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