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Update displaycal to

Authored by kyrios123 on Aug 15 2019, 2:16 PM.




  • Do early detection of highly non-monotonic luminance responses when doing on-the-fly generation of the preconditioning profile for auto-optimized testcharts with 425 or more patches.
  • Enhancement Always create a single shaper curve for the fallback matrix tags of cLUT profiles with nonlinear calibration.


  • DisplayCAL 3.8.4 broke video levels (16..235) output encoding/decoding for video card gamma table tags
  • Work-around Argyll applycal bug with gamma value TRC curve tags in profiles (fixes generating HDR 3D LUTs from display profiles with such tags).
  • Windows with display scaling above 100% (HiDPI): Prevent occasional text cutoff/wrapping issues on dialog messages by adding one pixel to the minimum width of the message text area (wxWidgets bug)

Signed-off-by: Pierre-Yves <>

Test Plan

Load the ICC profile for my screen

Diff Detail

R631 displaycal
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Automatic diff as part of commit; unit tests not applicable.

Event Timeline

kyrios123 created this revision.Aug 15 2019, 2:16 PM
kyrios123 requested review of this revision.Aug 15 2019, 2:16 PM
JoshStrobl accepted this revision.Aug 16 2019, 9:30 AM
JoshStrobl added a subscriber: JoshStrobl.

LGTM, thanks!

This revision is now accepted and ready to land.Aug 16 2019, 9:30 AM
This revision was automatically updated to reflect the committed changes.