event dropping on x11

[janisozaur]

There could be a case of Qt dropping input events on X11 platform.
Running native version on Linux and overloading it to a point where there is a lag in painting (e.g. by using a large airbrush) will cause the painting to become "blocky" (there will be long lines visible where should be much greater granularity). Running windows version using wine produces different results - much smoother painting regardless of the lag.
This is yet to be confirmed - debugging builds need to be built and their output compared. Luckly, there is a "xnee" tool (http://www.sandklef.com/xnee/) that provides utilities to record and replay X events (user actions).

[janisozaur (janisozaur)]

Even though it's not a solution, heck, it even won't be available in time for carto release (or so I hope), still it's a good read that might shed some light on our project: http://www.phoronix.com/scan.php?page=news_item&px=ODU0MQ.

[janisozaur (janisozaur)]

carto is now threaded and has a buffer o 8192 events per image.