[gs-devel] Fixes and changes on the "cups" output device of
Ghostscript -Please Test!
till.kamppeter at gmail.com
Tue Apr 28 12:28:14 PDT 2009
I have done several fixes and enhancements on the CUPS Raster output
device of Ghostscript, to support the Duplex-related keywords in the
CUPS PPD extensions (all tests done with Mike Sweet's "rasterview"):
Did not work for landscape documents. In general, the XY and YX
components of the matrix were swapped. This broke the output with
asymmetric resolutions (like 300x600 dpi) and back sides which are
supposed to be rotated or Y-flipped came out blank.
Introduced support for this keyword which is the replacement for
*cupsFlipDuplex:. Therefore *cupsFlipDuplex: gets generally ignored if
*cupsBackSide: is supplied. All modes described in the PPD extensions
Introduced support for this keyword. Now "*cupsEvenDuplex: True" causes
a blank page to be appended to documents with odd numbers of pages.
All these changes I have committed to the SVN repository of Ghostscript
and so they get part of GPL Ghostscript 8.65.
I have also created patches for Ghostscript 8.64 and uploaded them to
The patches are
The first patch also contains the fixes for the *cupsFlipDuplex: keyword.
In addition, I have added support for having page size entries in the
PPD which have the same width and height but differ only by the margins,
like "A4" with normal margins and "A4.fullbleed" with zero margins. The
fix is also uploaded to the SVN repository for Ghostscript 8.65 and the
patch for 8.64 is this one:
at the same place as the other two patches.
I will look into the "*APDuplexRequiresFlippedMargin:" keyword soon.
Please have a look into the patches and try them out. Tell me whether
they are OK and if something does not work, please supply fixes orhelp
me to fix it.
Thanks in advance.
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