From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <49FECECC.3080507@gmail.com> Date: Mon, 04 May 2009 13:17:32 +0200 From: Till Kamppeter MIME-Version: 1.0 References: <49F758CE.5060808@gmail.com> <49F98F67.2040401@gmail.com> In-Reply-To: <49F98F67.2040401@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Printing-architecture] Fixes and changes on the "cups" output device of Ghostscript -Please Test! List-Id: Printing architecture under linux List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Michael Sweet , "SUFFIELD,DAVID (HP-Vancouver,ex1)" , shiyun.yie@hp.com, "printing-architecture@lists.linux-foundation.org" , gs-devel I did a little correction on my changes, both in the Ghostscript SVN repositories and in the patch for Ghostscript 8.64 which I have uploaded: The "*cupsEvenDuplex:" PPD keyword is already treated by the pstops and the pdftopdf CUPS filters, so it should not get treated again by Ghostscript's CUPS Raster device. So I have removed the appropriate changes. Olease re-download the patch http://www.openprinting.org/download/printing/ghostscript-cups-patches/cups-device-pagesize-margins-duplex-fixes.patch or the modified source file http://www.openprinting.org/download/printing/ghostscript-cups-patches/gdevcups.c for Ghostscript 8.64 or update your Ghostscript 8.65 snapshot from the SVN repository. Till Till Kamppeter wrote: > Here is the second part of my fixes and changes. > > This time I have added support for the "APDuplexRequiresFlippedMargin" > PPD keyword as described on in the "Mac OS X Attributes" section of > > http://cups.org/documentation.php/doc-1.4/spec-ppd.html > > I have also fixed the margin handling. By testing with a document with > gray background, a PPD with 4 different unprintable borders for the 4 > edges of the paper, and rasterview I have seen that the printout did not > always get gray up to the unprintable borders. There were often wider > white borders than necessary. Now I have checked with all > duplex/portrait/landscape settings that the background will really fill > up the page as much as the printer allows. This is naturally also valid > for any graphical element in the document to be printed. Now we get > always the best possible results for objects near the borders. In > addition, the content should be accurately positioned on the page (not > slightly shifted). > > I have committed the changes again to the SVN repository of Ghostscript, > so that they will make it into GPL Ghostscript 8.65. > > Here is a patch containing ALL my changes (also of the first part) on > gdevcups.c: > > http://www.openprinting.org/download/printing/ghostscript-cups-patches/cups-device-pagesize-margins-duplex-fixes.patch > > > Please apply this patch to an unpatched Ghostscript 8.64. Or take the > complete file"and replace cups/gdevcups.c in the Ghostscript source with > it: > > http://www.openprinting.org/download/printing/ghostscript-cups-patches/gdevcups.c > > > Please test it. Now all duplex issues when developing CUPS Raster > drivers should get solved. > > Till > > > Till Kamppeter wrote: >> Hi, >> >> 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"): >> >> >> *cupsFlipDuplex: >> ---------------- >> >> 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. >> >> *cupsBackSide: >> -------------- >> >> 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 >> are supported. >> >> *cupsEvenDuplex: >> ---------------- >> >> 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 >> >> http://www.openprinting.org/download/printing/ghostscript-cups-patches/ >> >> The patches are >> >> cups-device-support-cupsbackside-ppd-keyword.patch >> cups-device-support-cupsevenduplex-ppd-keyword.patch >> >> 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: >> >> cups-device-select-pagesize-margins-by-pagesize-name.patch >> >> 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. >> >> Till >> > >