The Sinclair QL Forum

Should be a familiar game running on pi0


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Woo!

Hi,

I did have sQLux running on a Pi0 v1.2, with no WIFI or camera connector, under X11.

Can the new changes work without X11 and SDL2 installed?

Derek_Stewart wrote:Hi,

I did have sQLux running on a Pi0 v1.2, with no WIFI or camera connector, under X11.

Can the new changes work without X11 and SDL2 installed?

Yes, the screenshots shown are working without X11, the OpenGL acceleration must be set to Legacy in raspi-config (SDL2 seems to be broken in KMS mode and segfaults)

BUT annoyingly to run it in X11 at decent speed the OpenGL acceleration needs to be set to KMS mode, so you need to choose!

Whatever you did has made a huge difference to running in the command line. Loading is almost instant and performance is absolutely belting! Better than my original QLs that's for sure.

I did try running in the GUI under X11, but that was slow. Attempting to change the OpenGL settings in raspi-config was interesting as they are not there any more! Currently running an update to see if a later version brings them back.

Thanks for fixing this.


Cheers,
Norm.

NormanDunbar wrote:Whatever you did has made a huge difference to running in the command line. Loading is almost instant and performance is absolutely belting! Better than my original QLs that's for sure.

The main differences are

1) updating the screen directly from the 68k emulator, so its updated per word write rather than as a block of the whole screen.
2) only moving the screen surface to window if there has been a write as the above.

So if there are any QL arcade games I expect their performance to vary greatly depending on the amount of stuff moving on screen.

Seems to work quite nicely on a Pi3 too.


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I have tested on Pi4 but because that uses KMS you need to add your user to the input group (/etc/gro.up without dot, forum breaks with proper name) before you run sQLux otherwise you won't get any keyboard/mouse working.

You also need to log out/in again after editing that file!

I built it on a Pi4 this mornimg. Worked fine for me in X11 mode. Very speedy indeed, but I have not tried it in non-X11 mode yet. If I get time tomorrow, I'll do so.

Cheers,
Norm.

Is this the first native QL emulator on OSX?


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