I'm surprised other osx users have not complained about this before now. Is it possible that this is due a particular version of wxWidgets and/or osx and only Bernhard is seeing this?
On 2/8/2016 9:34 AM, Maciej Sumiński wrote: > Redrawing has to be done with every mouse movement (at least to redraw > the cursor), so to avoid issuing too frequent paint events, the timer > limits the number of requests per second. > > I cannot really tell why there is such discrepancy in wxTimer behavior > depending on the platform. Was this the case since the beginning? If > not, was it introduced in a particular wxWidgets or OS X version? > > Regards, > ORson > > On 02/08/2016 03:08 PM, Wayne Stambaugh wrote: >> I wonder if the throttling is done by wxWidgets, do we even need to >> throttle on windows and linux? Would one of our gal devs please comment >> on why this is necessary? Is this patch good to go on OSX? >> >> On 2/6/2016 10:25 AM, Bernhard Stegmaier wrote: >>> Hi, >>> >>> attached a patch to disable the below mentioned FPS limitation on OS X. >>> >>> Without limitation/timer scrolling is smooth as expected. >>> Even with heaviest scrolling or other use-cases I tested I did not >>> observe any increased CPU load. >>> >>> At least, from a user perspective possibly drawing too often seems way >>> better than having nasty hangs due to the excessive timer latency. >>> >>> >>> Regards, >>> Bernhard >>> >>> >>> >>> >>>> On 31.01.2016, at 16:45, Bernhard Stegmaier <[email protected] >>>> <mailto:[email protected]>> wrote: >>>> >>>> Hi all, >>>> >>>> I was looking why panning in GAL canvas on OS X is sometimes very jerky. >>>> >>>> I found out that GAL implements a framerate limiting using a timer, >>>> which blocks further updates if you try to refresh with >60Hz. >>>> With a Mac touchpad you easily get scroll events >60Hz, so that hits >>>> quite often. >>>> >>>> Problem is, that the timer event to unblock again at least on my >>>> MacBook often needs between 200ms and 500ms instead of the max. 17ms >>>> it should have. If this happens, you get “hangs” while panning. >>>> >>>> I tried to throttle mouse events to <60Hz to avoid hitting the timer. >>>> Unfortunately, this doesn’t seem to be enough, because >>>> EDA_DRAW_PANEL_GAL::Refresh still seems to be called very frequently >>>> (<<17ms, often with a delta of 0ms or 1ms). So, timer still kicks in >>>> and blocks things more than needed. >>>> I also did notice that EDA_DRAW_PANEL_GAL::Refresh is called on every >>>> mouse move (with default system mouse cursor)… is that also intended? >>>> For updating status bar? >>>> >>>> Any ideas on either how to improve the timer or how not to make it >>>> kick in? >>>> >>>> I already did try to use the wxTimer::Notify() function instead of >>>> having a wxTimerEvent delivered, but that didn’t make any big difference. >>>> I didn’t investigate the timer implementation of wxWidgets on OS X, >>>> maybe the latency already is there before any wxWidget event handling. >>>> >>>> Or, wouldn’t it be more appropriate to use something like the vertical >>>> sync >>>> https://www.opengl.org/wiki/Swap_Interval >>>> to limit drawing instead of this timer? >>>> >>>> >>>> Regards, >>>> Bernhard >>>> >>>> >>>> _______________________________________________ >>>> Mailing list: https://launchpad.net/~kicad-developers >>>> Post to : [email protected] >>>> <mailto:[email protected]> >>>> Unsubscribe : https://launchpad.net/~kicad-developers >>>> More help : https://help.launchpad.net/ListHelp >>> >>> >>> >>> _______________________________________________ >>> Mailing list: https://launchpad.net/~kicad-developers >>> Post to : [email protected] >>> Unsubscribe : https://launchpad.net/~kicad-developers >>> More help : https://help.launchpad.net/ListHelp >>> >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~kicad-developers >> Post to : [email protected] >> Unsubscribe : https://launchpad.net/~kicad-developers >> More help : https://help.launchpad.net/ListHelp >> > > _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
