[cups.general] Should the CUPS Raster output device of Ghostscript output compressed or uncompressed Raster data?
Helge Blischke
h.blischke at acm.org
Tue Jul 6 08:04:33 PDT 2010
Heino Goldenstein wrote:
> Hi,
>
> Am Dienstag, 6. Juli 2010 02:53 schrieb Michael R Sweet:
>
>> Compressing raster data on-system has a serious performance impact, more
>> than sending uncompressed data over the pipe.
>
> this point is full understand, but in our use case the cups-raster data is
> transferred off-system via the printer connection (ethernet, usb,
> centronics, ...). The Bandwith at this link is an aspect for performance.
> One solution is to implement another compression algorithm in the
> rastertoidol script, but why reinvent the wheel if the solution is
> allready there and the only missing part is a mechanism to select it in an
> ppd? For further information please see:
> http://bugs.ghostscript.com/show_bug.cgi?id=689885#c7
>
> --8<--
>
> Heino
You could implement a filter that does the compression as appropriate
and force its use by the "*cupsFilter: ..." keyword in the PPD,
Helge
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