Re: [Lilypond-auto] Issue 3333 in lilypond: Patch: More options to make-regtest-pngs.sh, use GNU parallel for faster conversion

[lilypond]

Updates:
        Status: Fixed
        Labels: -Patch-review Fixed_2_17_18

Comment #5 on issue 3333 by address@hidden: Patch: More options to  
make-regtest-pngs.sh, use GNU parallel for faster conversion
http://code.google.com/p/lilypond/issues/detail?id=3333

Pushed to staging as
commit c8a3b1776d4a5e108c9c68dab250bcae8611405d
Author: David Kastrup <address@hidden>
Date:   Tue Apr 23 08:21:30 2013 +0200

    More options to make-regtest-pngs.sh, use GNU parallel for faster  
conversion

    Also rearranges the options slightly.  -p is now used for GNU parallel
    instead of rendering PDFs via Cairo which is now done with -c.  The
    whole kaboodle is now:

    Make PNG files from regtests

    Usage:  ./make-regtest-pngs.sh -j CPUs -o/-n

      where -j specifies the number of parallel processes to run
      (normally CPUs+1).  e.g.:

      ./make-regtest-pngs.sh -j9

     -p uses GNU parallel with the given job count in order to also
     parallelize the conversion of PDF files to bitmaps when using -g
     or -d.  No attempt is made to parallelize the bitmap comparisons
     since their memory requirements may be prohibitive.

     -o means build an old regtest set - the PNGs go in the  
old-regtest-results
     directory

     -n means build a new regtest set - the PNGs go in the  
new-regtest-results
     directory

     -c uses PDF and the poppler library via pdftocairo for generating
     bitmaps, simulating the output for Evince and other previewers
     using poppler.  pdftocairo may be contained in the poppler-utils
     package.

     -r can be used for specifying a rendering resolution.  This
     defaults to 101 for poppler and 300 for Ghostscript from PDF.

     -g uses Ghostscript for rendering a bitmap version from the PDF,
     simulating the output from printing PDF files on a GNU system, so
     use a resolution appropriate for print.  Antialiasing is not enabled.

     -d changes the Ghostscript device used for creating PNG files
     (usually png16m for direct PNG creation and pngmono for printer  
simulation)


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