Hi, I describe in the next paragraphs what I do to build application with Pharo at 50 fps. Now I am using a SDL2 window with OSWindow and not the default Pharo window for rendering. There is a fullscreen option with OSWindow, I don't use it but I've just tried it works fine.
To use Athens/Cairo I start the VM headless and I open from the code a window using the SDL2 binding (OSWindow), then I extract the window surface as a cairo surface to draw on it using Athens and I use SDL2 to manage events (mouse, keyboard). That way I don't even start morphic/WorldMorph which wastes cpu ressources. I built this video game that way: https://clementbera.wordpress.com/2016/08/29/sdl2-cairo-headless-for-realtime-native-applications/ https://www.youtube.com/watch?v=srPdFgbyS6s The game is running in Pharo 4 (pre-Spur). I configured it to run at 50 fps but from time to time some frames are dropped for performance so I would say it is running at around 48-49 fps in practice. I think it should work on the latest Pharo but you need to ask on pharo-dev how to use OSWindow. Some APIs have changed since Pharo 4. Since the latest Pharo version is now using Spur I expect the performance to be way better and I think 50 fps is definitely manageable on a laptop. Note that this is still Pharo so if you want something which looks real-time you need to be careful about you object allocation rate in-between frame rendering. I hope this can help. Regards On Sun, Sep 24, 2017 at 9:43 AM, Stephane Ducasse <stepharo.s...@gmail.com> wrote: > Hi jeff > > let us know if this is working. the start.sh script is not working on > my machine. but clement made it worked on his machine and he should > publish a zip. > > Stef > > > > On Sun, Sep 24, 2017 at 9:39 AM, Stephane Ducasse > <stepharo.s...@gmail.com> wrote: > > Yes I will share a dropbox with you for now. > > > > On Sat, Sep 23, 2017 at 9:44 PM, J.F. Rick <s...@je77.com> wrote: > >> Hi Stef, > >> > >> since I'm only doing Athens rendering, it might be possible to do a > native > >> window implementation. That said, I don't know how to get started with > that. > >> Documentation seems to be hard to find. The last time I saw any work on > that > >> it was too early to be usable. I'm also not sure if it solves my "it > needs > >> to run in fullscreen at full speed" problem. If someone like Clement > could > >> get me started, that would be awesome. > >> > >> Cheers, > >> > >> Jeff > >> > >> On Fri, Sep 22, 2017 at 12:27 PM Stephane Ducasse < > stepharo.s...@gmail.com> > >> wrote: > >>> > >>> Hi Jeff > >>> > >>> Nice to see you. I do not know anybody running on X11. Esteban is > >>> working on better SDL20 integration. > >>> Did you try having a native window? I asked clement if he could > >>> release the Wizard Battle Arena because it was a game he did in a > >>> couple of days (yes he is good this guy) and that use cairo athens > >>> based for drawing on native window. > >>> > >>> stef > >>> > >>> On Fri, Sep 22, 2017 at 3:11 PM, J.F. Rick <s...@je77.com> wrote: > >>> > I'm running a fullscreen Pharo application on Ubuntu and I've noticed > >>> > that > >>> > Athens rendering gets way worse (maybe 10 updates per second) when I > >>> > switch > >>> > to fullscreen mode from inside Pharo. Ideally, I'd love for that to > be > >>> > fixed. > >>> > > >>> > In lieu of that, it would be cool if I could just maximize Pharo to > the > >>> > size > >>> > of the screen to achieve good performance. Two things stop that: the > >>> > Unity > >>> > application bar and the title-bar. For the former, I can configure > Unity > >>> > to > >>> > hide it. I noticed a '-notitle' X11 option when I execute pharo > -help. > >>> > I've > >>> > tried using these X11 options and neither -notitle or -fullscreen > seem > >>> > to > >>> > have any effect. Here's the command I run: > >>> > > >>> > ./bin/pharo --encoding utf8 -vm-display-X11 -fullscreen > PATH_TO_IMAGE & > >>> > > >>> > Pharo starts fine but neither option seems to have any effect. I've > also > >>> > tried this in GNOME, thinking that Unity was the problem. Again, no > >>> > effect. > >>> > > >>> > Any suggestions? > >>> > > >>> > Jeff > >>> > > >>> > > >>> > >> > >
