Bug#908840: gimp complains about Missing fast-path babl conversion detected

[shirish शिरीष]

Package: gimp
Version: 2.10.6-3
Severity: normal

Dear Maintainer,

I was using gimp with an image when saw the warnings on the console -

~/Pictures$ gimp riot-web-settings-screenshot.png
Missing fast-path babl conversion detected, Implementing missing babl fast paths
accelerates GEGL, GIMP and other software using babl, warnings are printed on
first occurance of formats used where a conversion has to be synthesized
programmatically by babl based on format description

*WARNING* missing babl fast path(s): "R'G'B' double" to "CIE Lab double"
*WARNING* missing babl fast path(s): "cairo-ARGB32" to "R'G'B'A u8"

I did see it's a common warning and some have also experienced crashes due to it
as well.

https://forum.manjaro.org/t/missing-fast-path-babl-conversion-detected/50518

While am not experiencing crashes atm, the warnings are disconcerting
at the very least.

FWIW, I did as shared on the manjaro thread without any discernable result -

~/.config$ mv GIMP/ GIMP_old/

$ gimp
Missing fast-path babl conversion detected, Implementing missing babl fast paths
accelerates GEGL, GIMP and other software using babl, warnings are printed on
first occurance of formats used where a conversion has to be synthesized
programmatically by babl based on format description

*WARNING* missing babl fast path(s): "R'G'B' double" to "CIE Lab double"
*WARNING* missing babl fast path(s): "cairo-ARGB32" to "R'G'B'A u8"

-- System Information:
Debian Release: buster/sid
  APT prefers testing-debug
  APT policy: (500, 'testing-debug'), (500, 'testing'), (100,
'unstable-debug'), (100, 'experimental-debug'), (100, 'experimental'),
(100, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.18.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_IN, LC_CTYPE=en_IN (charmap=UTF-8), LANGUAGE=en_IN:en
(charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gimp depends on:
ii  gimp-data            2.10.6-3
ii  libaa1               1.4p5-44+b2
ii  libbabl-0.1-0        0.1.56-1
ii  libbz2-1.0           1.0.6-9
ii  libc6                2.27-6
ii  libcairo2            1.15.12-1
ii  libfontconfig1       2.13.0-5
ii  libfreetype6         2.8.1-2
ii  libgcc1              1:8.2.0-6
ii  libgdk-pixbuf2.0-0   2.36.12-2
ii  libgegl-0.4-0        0.4.8-1+b1
ii  libgexiv2-2          0.10.8-1
ii  libgimp2.0           2.10.6-3
ii  libglib2.0-0         2.56.1-2
ii  libgs9               9.22~dfsg-2.1
ii  libgtk2.0-0          2.24.32-3
ii  libgudev-1.0-0       232-2
ii  libharfbuzz0b        1.8.8-2
ii  libheif1             1.3.2-1
ii  libilmbase23         2.2.1-2
ii  libjpeg62-turbo      1:1.5.2-2+b1
ii  liblcms2-2           2.9-3
ii  liblzma5             5.2.2-1.3
ii  libmng1              1.0.10+dfsg-3.1+b5
ii  libmypaint-1.3-0     1.3.0-2
ii  libopenexr23         2.2.1-4
ii  libopenjp2-7         2.3.0-1
ii  libpango-1.0-0       1.42.4-1
ii  libpangocairo-1.0-0  1.42.4-1
ii  libpangoft2-1.0-0    1.42.4-1
ii  libpng16-16          1.6.34-2
ii  libpoppler-glib8     0.63.0-2
ii  librsvg2-2           2.40.20-3
ii  libstdc++6           8.2.0-6
ii  libtiff5             4.0.9-6
ii  libwebp6             0.6.1-2
ii  libwebpdemux2        0.6.1-2
ii  libwebpmux3          0.6.1-2
ii  libwmf0.2-7          0.2.8.4-12
ii  libx11-6             2:1.6.6-1
ii  libxcursor1          1:1.1.15-1
ii  libxext6             2:1.3.3-1+b2
ii  libxfixes3           1:5.0.3-1
ii  libxmu6              2:1.1.2-2
ii  libxpm4              1:3.5.12-1
ii  xdg-utils            1.1.3-1
ii  zlib1g               1:1.2.11.dfsg-1

Versions of packages gimp recommends:
ii  ghostscript  9.22~dfsg-2.1

Versions of packages gimp suggests:
ii  gimp-data-extras          1:2.0.2-1
ii  gimp-help-en [gimp-help]  2.8.2-0.1
pn  gimp-python               <none>
ii  gvfs-backends             1.36.2-1
ii  libasound2                1.1.6-1

-- no debconf information


-- 
          Regards,
          Shirish Agarwal  शिरीष अग्रवाल
  My quotes in this email licensed under CC 3.0
http://creativecommons.org/licenses/by-nc/3.0/
http://flossexperiences.wordpress.com
EB80 462B 08E1 A0DE A73A  2C2F 9F3D C7A4 E1C4 D2D8