[Bug 50096] New: Performance Regression in Secondhand Lands

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50096

            Bug ID: 50096
           Summary: Performance Regression in Secondhand Lands
           Product: Wine
           Version: 5.14
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winex11.drv
          Assignee: wine-bugs at winehq.org
          Reporter: escomk3 at hotmail.com
      Distribution: ---

Created attachment 68573
  --> https://bugs.winehq.org/attachment.cgi?id=68573
Good and Bad Terminal Output (+xranrd)

After 9905a5a8 [1], the maximum FPS reached in Secondhand Lands can be around
5, when it is around 30-120 (120 being the maximum limit) depending on the
situation before this commit.

Running some quick profiling, there doesn't seem to be obvious (to me)
differences between the good and the bad in that regard.

Adding some TRACEs into the new code, I couldn't notice yet if anything there
was being called a lot, but I did notice something that may or may not be a bit
odd:

In 'xrandr14_get_gpus2' [2] I'm seeing 'new_gpus: 4' and 'count: 3265744',
which seems a "little bit" excessive (though I'm not sure if I'm doing things
right at all, nor do I necessarily understand the code at all).

This is how I was counting them:

    *new_gpus = gpus;
    TRACE("new_gpus: %d.\n");
    *count = provider_resources->nproviders;
    TRACE("count: %d.\n", count);
    ret = TRUE;

Download (no account is needed as the issues is visible in the main title menu
already):

- https://www.secondhandlands.com/download.php

Some Winetricks are required to get the game running at all:

- d3dx9_43
- d3dcompiler_43

Latest Wine version tested:

- wine-5.20-234-gb793799d3d5

1.
https://source.winehq.org/git/wine.git/commitdiff/9905a5a81d6baf59e992c5b2a8ea92ee4054e5d6
2.
https://source.winehq.org/git/wine.git/blob/9905a5a81d6baf59e992c5b2a8ea92ee4054e5d6:/dlls/winex11.drv/xrandr.c#l934

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