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Bug 795509 - Possible speedup for mantiuk06
Possible speedup for mantiuk06
Status: RESOLVED OBSOLETE
Product: GEGL
Classification: Other
Component: operations
unspecified
Other All
: Normal enhancement
: ---
Assigned To: Default Gegl Component Owner
Default Gegl Component Owner
Depends on:
Blocks:
 
 
Reported: 2018-04-24 13:58 UTC by Ingo Weyrich
Modified: 2018-05-22 12:22 UTC
See Also:
GNOME target: ---
GNOME version: ---



Description Ingo Weyrich 2018-04-24 13:58:42 UTC
As I made some speedups for Mantiuk06 tone mapping operator in Luminance HDR, a user on pixls.us asked me whether I can help to get this speedups also into GEGL.

If there is an interest in doing that, let me know. I can give some hints then.

Especially this part https://git.gnome.org/browse/gegl/tree/operations/common/mantiuk06.c#n1492 , which currently uses sort, can be implemented without a sort and also multithreaded. https://github.com/LuminanceHDR/LuminanceHDR/blob/master/src/Libpfs/rt_algo.cpp#L37

That gave a nice speedup for mantiuk06 and fattal tone mapping operators in Luminance HDR

For reference: 

https://discuss.pixls.us/t/speedup-for-mantiuk08/7398/5
https://github.com/LuminanceHDR/LuminanceHDR/pull/106
Comment 1 GNOME Infrastructure Team 2018-05-22 12:22:40 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to GNOME's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.gnome.org/GNOME/gegl/issues/67.