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Missing Babl Fast Paths?"
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FR3141
n00b
n00b


Joined: 13 Jan 2018
Posts: 25

PostPosted: Sat Feb 03, 2018 9:29 pm    Post subject: Missing Babl Fast Paths?" Reply with quote

I'm using gimp-2.9.8 which although it is a developmental release is very stable and trouble free (at least for my purposes).

But whenever gimp is started a puzzling message is printed to the terminal:

"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"

Babl is a set of conversion libraries that are used by gimp.

I am curious as to why the conversion fast paths are missing. Does anyone have an explanation or a reference?
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elkhunter
Tux's lil' helper
Tux's lil' helper


Joined: 19 Sep 2004
Posts: 109

PostPosted: Sat Sep 08, 2018 2:20 pm    Post subject: Reply with quote

I'm having the same issue w/ gimp. Did you ever find a solution?
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khayyam
Watchman
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Joined: 07 Jun 2012
Posts: 6070
Location: Room 101

PostPosted: Sat Sep 08, 2018 4:09 pm    Post subject: Reply with quote

elkhunter ...

the error is rather cryptic (well, barely english), but it seems to suggest some EGL capability is missing from mesa (I suspect gles1 or gles2 and so OpenGL ES).

HTH & best ... khay
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FR3141
n00b
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Joined: 13 Jan 2018
Posts: 25

PostPosted: Sat Sep 08, 2018 5:26 pm    Post subject: Reply with quote

I emerged mesa with "USE = gles1, gles2" and then emerged babl and gimp, but the same warning message appears.

But I am now using the stable release gimp-2.10.4 and the warning seems limited to only one babl conversion:

*WARNING* missing babl fast path(s): "R'G'B' double" to "CIE Lab double"

Unless I am mistaken, only the fastpath for this one babl conversion is missing.

Yet I still don't know what a "fastpath" actually is.
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