MACOS: OpenGL - Mouse cursor gets stuck around the edges in fullscreen mode

[dfabulich]

In ScummVM 2.5.0, in all games, in full screen mode, if I move my mouse cursor near the edge of the screen, the mouse cursor gets "stuck" there, unable to leave the edge of the screen.

This is a regression from ScummVM 2.2.0.

I'm attaching a screen recording of the problem. I've reproduced this problem in several different games in several different engines:

• Day of the Tentacle (CD/English)
• Myst (Masterpiece Edition/Windows/English)
• Quest for Glory II: Trial by Fire (DOS/English)

I'm on macOS Monterey 12.0.1. I've reproduced this issue on an Intel MacBook Pro (16-inch, 2019) and on an M1 MacBook Pro (16-inch, 2021), which are both HiDPI machines. I'm not able to reproduce this problem on a Windows 10 VM running on my Intel MacBook Pro, so the problem appears to be specific to macOS.

[dfabulich]

My screen recording is too large to upload as an attachment. Here's a YouTube video of the repro. ​https://www.youtube.com/watch?v=ITJqtOkNjuQ

[dfabulich]

Following this forum thread, I switched my graphics mode to "SDL Surface" the bug went away on both of my test machines. The bug appears when I select "<default>" or "OpenGL" graphics modes.

[dfabulich]

See also https://bugs.scummvm.org/ticket/12822

Note that #12822 required enabling Aspect Ratio Correction. I'm using stock ScummVM settings, which does not enable AR Correction, and I find that enabling/disabling AR Correction doesn't help/hurt this issue in OpenGL mode.

[criezy]

Bug #12822 did not actually require turning aspect ratio correction on to occur. It required having Pilar boxes, which can also happen with aspect ratio correction turned off. But that bug was fixed in the 2.5.0 release already anyway.

The bug you describe here sounds like it may however be related to bug #12646, or maybe even be the same bug. Sadly I have never been able to reproduce such issue.

[dfabulich]

Well, I’m prepared to provide any additional information you need to fix this, including setting up a dev environment, making an appointment to screen share, or providing additional logs or whatever.

[kalkie]

This is very likely a duplicate of #12646. I've submitted a PR for that issue:
​https://github.com/scummvm/scummvm/pull/3699

For more information, see comment:7:ticket:12646.

[criezy]

Since we suspect this is a duplicate of bug #12646 that has now been fixed, I will close this one as well. Feel free to reopen if it turns out this issue is a different one and still occurs.