[cairo] fill exact pixels

Andreas Lobinger lobingera at gmail.com
Sat Jul 9 10:20:02 UTC 2016

Hello colleagues,

i'm (not alone) trying to build a regression test and it would be nice
to build the test like drawing something to a image surface and
compare the bitmap (with the target).

Can i assume that i get exactly filled pixels with

* drawing lines with
* linewidth as even integer
* coordinates (transformed) as integers

So avoiding any anti-aliasing.

Wishing a happy day,

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