[Bug 43519] Path of Exile: Corrupt/ flickering UI textures after ~1 minute of gameplay

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=43519

--- Comment #3 from Robert Xiao <nneonneo at gmail.com> ---
Created attachment 58914
  --> https://bugs.winehq.org/attachment.cgi?id=58914
wined3d_fence_wait patch that seems to fix the issue

OK, I built from source (tag wine-2.14) and reproduced the bug. Then I patched
wined3d_fence_wait by setting the timeout to something much less than
~(uint64_t)0xffff (but still very large, ~146 years) and the problem appears to
be fixed.

I believe what's happening is that the timeout value is internally being
adjusted by macOS somewhere, and that adjustment is not entirely predictable.
The previous comment to avoid 0xfffffffffffffbff suggests that the adjustment
is at least 1000 nanoseconds (1us), but my testing suggests that the adjustment
could be as high as 65536 nanoseconds under certain circumstances.

To avoid any future issues, this patch uses a timeout of 2^62 nanoseconds. Why
not 2^63? Because I'm paranoid that a "negative" value (one which could be
interpreted as a negative signed 64-bit int) might cause other issues down the
line. 2^62 is a long enough wait time to be safe, while being far enough from
2^63 or 2^64 that we shouldn't see any further issues.

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