https://bugs.kde.org/show_bug.cgi?id=447211
Dmitry Kazakov <dimul...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Latest Commit| |https://invent.kde.org/grap
| |hics/krita/commit/c48e2754d
| |28d7b33388d8897591f3c52fe68
| |4093
--- Comment #5 from Dmitry Kazakov <dimul...@gmail.com> ---
Git commit c48e2754d28d7b33388d8897591f3c52fe684093 by Dmitry Kazakov.
Committed on 20/12/2021 at 12:54.
Pushed by dkazakov into branch 'master'.
Fix artifacts when using colorsmudge brush over CMYK image
The problem is that we cannot rely on LCMS' conversions between
CMYK-U8 and CMYK-U16. They cannot do proper round-tripping, the
color fluctuates a lot, therefore causing artifacts.
To workaround this issue we can just offload all these conversions
to KoOptimizedRgbPixelDataScalerU8ToU16 (which now supports varying
number of channels in the pixel).
M +8 -0 libs/image/KisOverlayPaintDeviceWrapper.cpp
M +8 -2 libs/pigment/KoOptimizedRgbPixelDataScalerU8ToU16.h
M +11 -0 libs/pigment/KoOptimizedRgbPixelDataScalerU8ToU16Base.cpp
M +7 -0 libs/pigment/KoOptimizedRgbPixelDataScalerU8ToU16Base.h
M +7 -1 libs/pigment/KoOptimizedRgbPixelDataScalerU8ToU16Factory.cpp
M +8 -0 libs/pigment/KoOptimizedRgbPixelDataScalerU8ToU16Factory.h
M +2 -2 libs/pigment/KoOptimizedRgbPixelDataScalerU8ToU16FactoryImpl.cpp
M +37 -0 libs/pigment/tests/TestColorConversionSystem.cpp
M +2 -0 libs/pigment/tests/TestColorConversionSystem.h
https://invent.kde.org/graphics/krita/commit/c48e2754d28d7b33388d8897591f3c52fe684093
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