Created attachment 107387 [details]
Resuling postscript from pstops due to incorrect parametrization

When specifying custom media dimensions for a printout (on a physical printer), the command sent to CUPS includes the media dimensions.
Unfortunately, the values are given in swapped order.

According to CUPS manual https://www.cups.org/doc/options.html the correct order of the dimensions is

lp -o media=Custom.WIDTHxLENGTHmm filename

But the assignment is performed in reverse order, see file "fileprinter.cpp" line 539:
    case QPrinter::Custom:     return QStringLiteral("Custom.%1x%2mm")
                                            .arg( printer.heightMM() )
                                            .arg( printer.widthMM() );

Please swap heightMM() and widthMM().



In the current version (and for many years), printouts of A4 portraits (borderless) are being shrinked by pstops to the bottom-right corner of the portrait media. The resulting content height corresponds to the width of the media (due to swapped values).
I have attached an example of the resulting shrinked postscript, which is then passed to the CUPS filter of my printer (Brother DCP585CW).

Here is the relevant excerpt of /var/log/cups/erros.log in debug mode, including the incorrect dimensions in argv[5]:

D [20/Aug/2017:07:42:54 +0200] [Job 477] 2 filters for job:
D [20/Aug/2017:07:42:54 +0200] [Job 477] pstops (application/postscript to application/vnd.cups-postscript, cost 66)
D [20/Aug/2017:07:42:54 +0200] [Job 477] brlpdwrapperdcp585cw (application/vnd.cups-postscript to printer/Brother_DCP-585CW, cost 0)
D [20/Aug/2017:07:42:54 +0200] [Job 477] job-sheets=none,none
D [20/Aug/2017:07:42:54 +0200] [Job 477] argv[0]="Brother_DCP-585CW"
D [20/Aug/2017:07:42:54 +0200] [Job 477] argv[1]="477"
D [20/Aug/2017:07:42:54 +0200] [Job 477] argv[2]="robert"
D [20/Aug/2017:07:42:54 +0200] [Job 477] argv[3]="Example.pdf"
D [20/Aug/2017:07:42:54 +0200] [Job 477] argv[4]="1"
D [20/Aug/2017:07:42:54 +0200] [Job 477] argv[5]="Collate finishings=3 fit-to-page job-billing media=Custom.291x205mm number-up=1 number-up-layout=lrtb outputorder=reverse page-bottom=10 page-left=10 page-right=10 page-top=10 portrait sides=one-sided job-uuid=urn:uuid:7ae72161-74c7-3701-5164-eb4fab1e615f job-originating-host-name=localhost date-time-at-creation= date-time-at-processing= time-at-creation=1503207774 time-at-processing=1503207774 document-name-supplied=okular_nS1822.ps"
D [20/Aug/2017:07:42:54 +0200] [Job 477] argv[6]="/var/spool/cups/d00477-001"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[0]="CUPS_CACHEDIR=/var/cache/cups"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[1]="CUPS_DATADIR=/usr/share/cups"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[2]="CUPS_DOCROOT=/usr/share/cups/doc"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[3]="CUPS_FONTPATH=/usr/share/cups/fonts"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[4]="CUPS_REQUESTROOT=/var/spool/cups"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[5]="CUPS_SERVERBIN=/usr/lib/cups"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[6]="CUPS_SERVERROOT=/etc/cups"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[7]="CUPS_STATEDIR=/run/cups"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[8]="HOME=/var/spool/cups/tmp"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[9]="PATH=/usr/lib/cups/filter:/usr/bin:/usr/bin:/bin:/usr/bin"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[10]="SERVER_ADMIN=root@Blocko"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[11]="SOFTWARE=CUPS/2.2.4"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[12]="TMPDIR=/var/spool/cups/tmp"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[13]="USER=root"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[14]="CUPS_MAX_MESSAGE=2047"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[15]="CUPS_SERVER=/run/cups/cups.sock"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[16]="CUPS_ENCRYPTION=IfRequested"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[17]="IPP_PORT=631"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[18]="CHARSET=utf-8"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[19]="LANG=en.UTF-8"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[20]="PPD=/etc/cups/ppd/Brother_DCP-585CW.ppd"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[21]="RIP_MAX_CACHE=128m"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[22]="CONTENT_TYPE=application/postscript"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[23]="DEVICE_URI=lpd://10.0.0.5/BINARY_P1"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[24]="PRINTER_INFO=Brother DCP-585CW"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[25]="PRINTER_LOCATION=Home"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[26]="PRINTER=Brother_DCP-585CW"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[27]="PRINTER_STATE_REASONS=none"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[28]="CUPS_FILETYPE=document"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[29]="FINAL_CONTENT_TYPE=application/vnd.cups-postscript"
D [20/Aug/2017:07:42:54 +0200] [Job 477] envp[30]="AUTH_I****"
I [20/Aug/2017:07:42:54 +0200] [Job 477] Started filter /usr/lib/cups/filter/pstops (PID 1911)
I [20/Aug/2017:07:42:54 +0200] [Job 477] Started filter /usr/lib/cups/filter/brlpdwrapperdcp585cw (PID 1912)
I [20/Aug/2017:07:42:54 +0200] [Job 477] Started backend /usr/lib/cups/backend/lpd (PID 1913)


When manually running pstops filter with swapped "media=Custom.205x291mm", the result is as desired.


Regards,

Robert