190 lines
4.4 KiB
Bash
190 lines
4.4 KiB
Bash
#!/bin/bash
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# Debug mode: change to 'yes' to enable
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DEBUG=${DEBUG-no}
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function log() {
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[ "${DEBUG}" = "yes" ] && echo $* | logger -t "$0[$$]"
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}
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function logpipe() {
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[ "${DEBUG}" = "yes" ] && echo $* | logger -t "$0[$$]"
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}
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function trapINT() {
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log "trapINT()"
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[ "x$trp" = "x" ] && trp="yes" || return
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sleep 30 && { [ ! "${DEBUG}" = "yes" ] && rm -rf $uid; log "Cleanup complete"; } &
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exit
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}
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function stop() {
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log "Stop stop page";
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echo "stop" > $uid/999999999-page.pbm
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}
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function output_page() {
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# Converting page to JBIG format (parameters are very special for this printer!)
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pbmtojbg -p 72 -o 3 -m 0 -q < $page > $uid/raster.jbig
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# Taking image size
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jsize=`wc -c < $uid/raster.jbig`
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# Taking image dimensions
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x=($(identify -format "%w %h %[fx:mean] " $page))
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##
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# The %[fx:mean] gives the average colour in the image which for
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# monochrome is the number of white pixels divided by the size
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#
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# So the formula gives the number of black pixels. The final
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# /1 causes bc to round to the nearest integer because scale=0
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##
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dots=$(echo "(${x[0]}*${x[1]}*(1-${x[2]}))/1"|bc)
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##
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# FIX: toner cartridge runs out way too fast with this dots
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# calculation above and once it decides it's empty, you
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# can't force it to print. So set dots to an artificially
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# low number
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dots=$(echo "$dots/10"|bc)
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# Flushing page header
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cat <<EOF
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@PJL SET PAGESTATUS=START$e
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@PJL SET COPIES=1$e
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@PJL SET MEDIASOURCE=$mediasource$e
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@PJL SET MEDIATYPE=PLAINRECYCLE$e
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@PJL SET PAPER=$pagesize$e
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@PJL SET PAPERWIDTH=${x[0]}$e
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@PJL SET PAPERLENGTH=${x[1]}$e
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@PJL SET RESOLUTION=${resolution%x600}$e
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@PJL SET IMAGELEN=$jsize$e
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EOF
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cat $uid/raster.jbig
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# Flushing page footer
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# TODO: pixelcount for toner estimate
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cat <<EOF
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@PJL SET DOTCOUNT=$dots$e
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@PJL SET PAGESTATUS=END$e
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EOF
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}
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function output_header() {
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cat <<EOF
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%-12345X@PJL$e
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@PJL SET TIMESTAMP=$ddate$e
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@PJL SET FILENAME=Document$e
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@PJL SET COMPRESS=JBIG$e
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@PJL SET USERNAME=$user$e
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@PJL SET COVER=OFF$e
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@PJL SET HOLD=OFF$e
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EOF
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}
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function output_footer() {
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cat <<EOF
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@PJL EOJ$e
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%-12345X
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EOF
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}
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log "Called with cmdline: $0 $*"
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trap "stop; trapINT" SIGINT SIGTERM SIGQUIT
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#trap 'echo No' SIGINT SIGTERM SIGQUIT EXIT;
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# Username
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user="$2"
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# Page title (not used at this time, "Document" instead)
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ptitle="$3"
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my="$0"
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options="$5"
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pagesize="A4"
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resolution="600"
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mediasource="TRAY1"
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for opt in $options; do
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case "$opt" in
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PageSize=*)
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pagesize="$(echo "${opt#PageSize=}" | tr a-z A-Z)"
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;;
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Resolution=*)
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resolution=${opt#Resolution=}
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resolution=${resolution%dpi}
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;;
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InputSlot=*)
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mediasource=${opt#InputSlot=}
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;;
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esac
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done
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# MS-style EOL
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e=$(echo -en "\r")
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# Printing date
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ddate="`LC_ALL=en_US.UTF-8 date '+%Y/%m/%d %H:%M:%S'`"
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# Temporary directory
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uid="/tmp/pstoricohddst-gdi-`uuidgen`"
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mkdir -p $uid
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[ "${DEBUG}" = "yes" ] && exec >$uid/output.stream #> >(tee $uid/output.stream)
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[ -x "$(which inotifywait)" ] && {
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log "Asynchronous variant"
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(
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stage="empty"
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inotifywait -q -m -r -e close_write --format '%f' $uid | grep --line-buffered 'page.pbm$' | while read page; do
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log "Page submitted"
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[ "$stage" = "empty" ] && {
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log "1st stage. Flushing PJL header"
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output_header
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stage="printing"
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}
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[ "$page" = "999999999-page.pbm" ] && {
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log "Last stage. Flushing PJL footer"
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output_footer
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pid=`ps ax | grep $uid | grep -v grep | awk ' { print $1 } '`
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[ ! "x$pid" = "x" ] && kill $pid
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break
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}
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[ "$stage" = "printing" ] && {
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page=$uid/$page
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output_page
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}
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done
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) &
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# Converting from PostScript to PostScript-monochrome, then to PBM image format (per page)
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#gs -sDEVICE=ps2write -sOutputFile=- -r$resolution -dQUIET -dBATCH -dNOPAUSE - |
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gs -sDEVICE=pbmraw -sOutputFile=${uid}/%03d-page.pbm -r$resolution -dQUIET -dBATCH -dNOPAUSE -
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stop
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wait
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trapINT
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} || {
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log "Synchronous variant"
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# Converting from PostScript to PostScript-monochrome, then to PBM image format (per page)
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log "Converting document to pages"
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gs -sDEVICE=ps2write -sOutputFile=- -r$resolution -dQUIET -dBATCH -dNOPAUSE - | gs -sDEVICE=pbmraw -sOutputFile=${uid}/%03d-page.pbm -r$resolution -dQUIET -dBATCH -dNOPAUSE -
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log "Conversion complete"
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output_header
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for page in ${uid}/*-page.pbm; do
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output_page
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done
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# Flushing PJL footer
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output_footer
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}
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# only remove the output dir if not debugging
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[ ! "${DEBUG}" = "yes" ] && rm -rf $uid;
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exit 0
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