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http://www.openoffice.org/issues/show_bug.cgi?id=107278
User aw changed the following:
What |Old value |New value
================================================================================
Status|NEW |STARTED
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------- Additional comments from [email protected] Fri Dec 4 11:52:48 +0000
2009 -------
AW: Indeed the same as #i46535#, the moire effect is the result of a not
filtered downscale. Also necessary info: Images in SW and in Draw/Impress/Calc
are two pair of shoes (SW uses it's own objects for it), but i checked and both
seem to use the same paint mechanism, so i think slideshow will do the same.
Drawinglayer has three mechanisms for Bitmap paint:
(1) The edit view uses GraphicObject::Draw(...) from the GraphicManager stuff.
It is also prepared to use
(2) OutputDevice::DrawBitmapEx(...) and
(3) an own downscaler (RenderBitmapPrimitive2D_self).
Please refer to VclProcessor2D::RenderBitmapPrimitive2D to see the possibilities
of drawinglayer. The usage depends on transformation information, e.g (1) works
with rotation, but not with shear, (2) is neither able to use rotation nor
shear, and (3) was needed when shear is used (no other solution offered until
then).
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