Add custom starter to App scope

gmelchett

Interesting. Sad that the performance was that bad.
Have you had a look at https://github.com/renpy/pygame_sdl2?
(It has a pygame compatible mode)
There is at least one game for Sailfish that uses that pygame_sdl2.

dobey

There is no 3D acceleration for X11 apps. Depending on what it uses to actually render to screen, perhaps it could be something used that gets packaged along with apps using it, and could be run as a click instead, without the need for libertine or X11.

You likely won't have any luck with things that need acceleration to run, from the libertine/X11 side.

Wendigo

Thanks for the insight. Does that mean, that there is currently no OpenGL/GLES/WebGL at all? (during Q&A40 Marius mentioned that WebGL is currently also disabled in the browser App)

Depending on what it uses to actually render to screen, perhaps it could be something used that gets packaged along with apps using it, and could be run as a click instead, without the need for libertine or X11.

Could you elaborate on this topic a bit please?

CiberSheep

There is an arm buld for Love2D you can take apart:
https://bitbucket.org/rude/love/downloads/

Or if you want to read how to build, you can start here: https://love2d.org/forums/viewtopic.php?f=12&t=79468

Wendigo

Here is the love.desktop starter I used to run the old love2d version from the repository:

[Desktop Entry]
Name=Love
MimeType=application/x-love-game;
Exec=/usr/bin/love
Comment=Games development framework in lua
Type=Application
Categories=Development;Game;
Terminal=false
Icon=love-app

If you compile it yourself just change the Exec= path or copy it in the /usr/bin/ folder.

dobey

@wendigo GLES works for native apps that are talking directly to Mir (Qt, SDL, etc… packaged in clicks). The browser does not have 3D accel working via GPU, which is why WebGL is disabled. Likewise, apps running under libertine do not have direct hardware access, and are not talking directly to Mir. The Xmir wrapper does not provide 3D accel on the phones/tablets, so such things cannot be used there.

I don't know anything about the internals of love2d, but if it's using SDL or Qt, then building it appropriately and shipping it along with the app that's using it, inside the click, with the .desktop file of the app doing all the right stuff, it could indeed use the accelerated graphics.

gmelchett

Too bad Mir support was removed from SDL a few days ago
https://github.com/SDL-mirror/SDL/commit/feb85d5ae0ef4c3e5602cfc4976f7a97f049ff2c

dobey

@gmelchett Well, you don't have to use the version from git. I suspect it was removed there in favor of using Wayland, with newer versions of Mir, as is also done for other toolkits. That will be the way forward in the future, but for now, direct client support is needed on the phone/tablet builds.

mymike

any update about love games on UT?

Wendigo

Not really. Since Love2d depends on SDL2 we'd first figure out how to compile SDL with clickable:

All dependencies included
With SDL2 version <= 2.0.7

mymike

@wendigo thanks
but why do we need to compile love2d? can't we use an existing armhf love build?
let me know if there are any progress (and maybe how can I help in this), as I'm interested in a love game on UT...

btw, are you also ion telegram, where we can chat easily?

Wendigo

@mymike said in Add custom starter to App scope:

@wendigo thanks
but why do we need to compile love2d? can't we use an existing armhf love build?
let me know if there are any progress (and maybe how can I help in this), as I'm interested in a love game on UT...

btw, are you also ion telegram, where we can chat easily?

IIRC the armhf build for Raspberry Pi was built for X11 with Mir/Wayland explicitly excluded via compiler flags, but I'm not quite sure. All I remember is that it didn't work.
You can find me on Telegram and Matrix (FluffyChat) under the name: [ a t ]mickey83
Though I'm more active on Matrix.

Wendigo

I had a second look, guess I was wrong. The Mir/Wayland backend was excluded from the RasPi version of SDL2. Love2d was offered for armhf in deb format, which I don't know how to install via clickable. (if that is possible at all)

mymike

what about installing SDL2 and Love2d in the system image? so that every app/game that needs them doesn't need to have them inside the click package. I know we are almost out of space, but they're quite small and useful...
this way we can install them as deb. I'll have a shot to see if installed as deb they work...

dobey

@mymike We can't, and really shouldn't, ship every possible library that one might want to use in an app, or that is required by a game, which someone wants to package for UT. And if we ship the main SDL library, then how many others should we ship? We can't ship them all, and many different ones are used by different developers.

It's not hard to have an SDL that supports Mir built into a click package.

mymike

@mymike We can't, and really shouldn't, ship every possible library

ok, I understand

It's not hard to have an SDL that supports Mir built into a click package.

just try to build SDL with clickable?

dobey

@mymike said in Add custom starter to App scope:

just try to build SDL with clickable?

Yes, with the libraries config, or you might be able to just pull the library out of the deb package if it doesn't have any hard-coded paths built into it, and is linked to the correct version of Mir.

mymike

@Wendigo said in Add custom starter to App scope:

Not really. Since Love2d depends on SDL2 we'd first figure out how to compile SDL with clickable:

All dependencies included

With SDL2 version <= 2.0.7

https://forums.ubports.com/topic/2178/c-and-sdl-with-clickable-a-little-help-please/16 SDL2 works on UT, now how can I package love2d in a click?

dobey

@mymike said in Add custom starter to App scope:

@Wendigo said in Add custom starter to App scope:

Not really. Since Love2d depends on SDL2 we'd first figure out how to compile SDL with clickable:

All dependencies included

With SDL2 version <= 2.0.7

https://forums.ubports.com/topic/2178/c-and-sdl-with-clickable-a-little-help-please/16 SDL2 works on UT, now how can I package love2d in a click?

Do basically the same thing to build love2d with SDL2 support, and include the necessary files in your click by installing them to the correct place during the clickable build so that build-click will include them.

mymike

@dobey eh, the thing is that for SDL2 I just copied someone else's template, do idk how it works...