https://bugs.documentfoundation.org/show_bug.cgi?id=156361

Patrick Luby <[email protected]> changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected],
                   |                            |[email protected]

--- Comment #3 from Patrick Luby <[email protected]> ---
I haven't found what commit caused this change, but it appears that somewhere
in the libreoffice-7-6 and master branches the code in
vcl/source/outdev/bitmap.cxx:345 is getting called more frequently.

The patch in https://bugs.documentfoundation.org/attachment.cgi?id=188448
disables one Skia alpha blending case and allows that case to fall through to
the non-Skia slow alpha blending code.

With this patch, the bug does *not* occur so it appears that the bug is in one
or both of the following:

SkiaSalGraphicsImpl::blendAlphaBitmap()
SkiaSalGraphicsImpl::blendBitmap()

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