(Recent) Godot games fail to load

[qixils]

commit: 5471b77

games tested:

• https://geegaz.itch.io/out-of-controls (godot v3.2.1)
• https://fedevgd.itch.io/the-maze (v3.2.2)
• other random free games

Attempt 1: Connected.
Godot Engine v3.2.1.stable.official - https://godotengine.org
[libTAS f:0] Thread 420534 (main) OpenGL vendor: NVIDIA Corporation
[libTAS f:0] Thread 420534 (main) OpenGL renderer: GeForce GTX 1660 SUPER/PCIe/SSE2
XIO:  fatal IO error 17 (File exists) on X server ":0"
      after 28 requests (28 known processed) with 0 events remaining.
[libTAS f:0] Thread 0 (main) ERROR: send() returns -1 with error Broken pipe
XIO:  fatal IO error 2 (No such file or directory) on X server ":0"
      after 28 requests (28 known processed) with 0 events remaining.
[libTAS f:0] Thread 0 (main) ERROR: send() returns -1 with error Broken pipe

no window ever opens

a much older game from jan. 2017 appears to load and run fine, though i didn't extensively test

[clementgallet]

Looking into gdb and at Godot's code, the engine uses forked processes (without exec) as part of execution (see https://github.com/godotengine/godot/blob/master/platform/linuxbsd/detect_prime_x11.cpp), and libtas does not like this (at least for socket communication between game and program).

[InfoTeddy]

Does the latest commit 499fd07 improve behavior with these games?

[qixils]

unfortunately not, same error(s) as before

Interim commit 499fd07 built on 2020-08-13
Icon theme "deepin" not found.
Attempt 1: Connected.
Godot Engine v3.2.1.stable.official - https://godotengine.org
[libTAS f:0] Thread 500645 (fork) OpenGL vendor: NVIDIA Corporation
[libTAS f:0] Thread 500645 (fork) OpenGL renderer: GeForce GTX 1660 SUPER/PCIe/SSE2
XIO:  fatal IO error 17 (File exists) on X server ":0"
      after 28 requests (28 known processed) with 0 events remaining.
XIO:  fatal IO error 2 (No such file or directory) on X server ":0"
      after 28 requests (28 known processed) with 0 events remaining.

[clementgallet]

out-of-controls working with the last two commits (fd46d4f and fe7b8dd). Default audio driver seems to be pulseaudio, so by default audio is not hooked. The engine also implements ALSA audio driver, so there should be a setting or command-line option to use ALSA instead.

[qixils]

running the game with --help shows all the options which includes --audio-driver ALSA, though it seems to cause the game to freeze on frame 0 when used in libTAS

loading savestates seems to cause stack smashing, though that could also be because i'm running unsupported graphics drivers?

*** stack smashing detected ***: terminated
recv() 0 bytes instead of 4
Got wrong message after state loading

thanks for working on this by the way ^^

[InfoTeddy]

No, the stack smashing when loading savestates is probably #359. As a workaround, just disable savestate compression for now.

[qixils]

Ah, correct guess! That fixes it. Won't close this issue yet though as the ALSA hang remains.

[clementgallet]

Commit 3904615 should fix the alsa driver output.

[qixils]

awesome, can confirm it works as expected! only issue left is there's still savestate smashing with compressed savestates enabled, but i'm guessing that's not related to godot in any way

[InfoTeddy]

Yes, that's unrelated, and #359 has been fixed anyways if you're on the latest commit.

[qixils]

i'm on latest commit and still experiencing the issue.

[InfoTeddy]

Weird - could you try VVVVVV? That's the game I tried it with, and it works fine for me.