https://issues.apache.org/ooo/show_bug.cgi?id=122778

--- Comment #7 from Armin Le Grand <[email protected]> ---
ALG: Checked the linux version with these changes; faster, better scrolling,
but still the bad edges. These do *not* come from the created, self-transformed
bitmap, but from painting this scaled when the point limit is reached (there is
a maximum square pixels to take into account). When removing this, edges are
smooth since the self-prepared transformed bitmap will be the exactly paint
size, so no scaling in software in vcl is done anymore.
@HDU: Problem emerges in OutputDevice::ImplDrawAlpha; the scaling done there is
very rough and produces those bad edges. To switch off size limitation in the
creation of self-transformed bitmaps, apply the patch and in
BitmapEx::getTransformed let bNeedToReduce never get true.

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