[macOS] [Arm] [SDL HW] Graphics issue with animations and mouse movement

[shinra-electric]

I built OpenDune for Arm on macOS Ventura, and there are graphics issues.

During the intro, garbage is shown around the animation:

This also manifests around animations (such as speaking characters when you're choosing a house):

And also around the mouse pointer, but only when moving (I was moving the mouse fast just to illustrate):

[miniupnp]

it may be an issue with SDL ?

[shinra-electric]

If it helps, here are the terminal outputs after building and running:

OpenDune_build.txt
OpenDune_running.txt

[miniupnp]

@shinra-electric does the problem persists with the latest SDL2 version ?

[shinra-electric]

I just made a fresh build, and yes the issue is still there:

[miniupnp]

without reproducing it is difficult to understand what happens.

[dalanmiller]

Also experiencing this on my M1 Max

[shinra-electric]

After the above comment I tried it on an old Intel Mac, and it works fine.

So this issue seems to be with Arm64 Macs only.

[binglongx]

I am not able to create a branch (so no PR) here, but this is a fix that works on my Mac with Apple Silicon M1, see attached git diff file.

The change basically allows configuring opendune to run with renderer software fallback. In M1 Macs, using software fallback for renderer overcomes the messed up graphics.

To take effect, add to opendune.ini:

[opendune]
renderer_software_fallback=1

Issue377.patch

[miniupnp]

fixed with 8f5e52e