[Bug 41107] New: Total Commander 8.52a Final has VERY slow folder icons rendering

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=41107

            Bug ID: 41107
           Summary: Total Commander 8.52a Final has VERY slow folder icons
                    rendering
           Product: Wine
           Version: 1.9.16
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: shell32
          Assignee: wine-bugs at winehq.org
          Reporter: katsunori.kumatani at gmail.com
      Distribution: ---

Created attachment 55313
  --> https://bugs.winehq.org/attachment.cgi?id=55313
Terminal Output, not very useful

Using the 32-bit version of Total Commander 8.52a Final (latest non-beta), when
drawing/rendering the icons for folders, it is VERY slow. Download the 32-bit
version here: http://totalcmd2.s3.amazonaws.com/tcmd852ax32.exe

After installing and launching it, please do the following to reproduce:

1) Maximize the Window to have more folders on screen.

2) Near the top-left, to the right of the green "Refresh" button, click on the
"Source: Only file names" button, this enables more folders visible at once to
show the slow effect more.

3) Go/navigate to a folder which has around 200 folders, such as Z:\usr\share 
(depends on your Linux distro), it doesn't matter, just make sure it has a lot
of folders to see how painfully slow it is.

This problem of course is not present in Windows.

Terminal output has been attached, however I don't think it has any useful
information because [b]Total Commander version 7 exhibits almost the same
terminal output, but IT IS NOT SLOW like 8.52a![/b] In fact it is almost
instant when rendering folder icons, which look the exact same.

If you turn off folder icons in Preferences, it is fast, so I know that they
are the culprit, 100%.

Btw, the version 9 beta does not seem to have this problem because it uses the
system's folder icons (which are blue on my system) instead of internal. The
internal ones are yellow.

I hope you can track down and fix this bug with this information.

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