[Libreoffice-bugs] [Bug 46378] Poor Resampling Image quality

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=46378

--- Comment #11 from Jan Holesovsky <kendy at suse.cz> 2012-05-31 13:51:12 PDT ---
Fernand: The best if you can provide directly a .odf + what exactly one should
provide in the PDF Export dialog to see the wrong downsampling, that would be
best.  Thank you!

Tomaž: Oh - that would be great.  Please look into vcl/source/gdi/bitmap3.cxx,
and take Bitmap::ImplScaleInterpolate() as an example to implement the Lanczos
filter.  You'll also need to modify the related header, that is
vcl/inc/vcl/bitmap.hxx.

As to where exactly to address the PNG / JPEG problem, I am not exactly sure;
but probably best to run LO in debugger, and Ctrl+C during the export, and go
up in the stack a bit to see where / what is happening there.

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