[Bug 40360] New: Jack Keane 2 shadow corruption

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=40360

            Bug ID: 40360
           Summary: Jack Keane 2 shadow corruption
           Product: Wine
           Version: 1.9.6
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: abolte at systemsaviour.com
      Distribution: ---

Created attachment 54046
  --> https://bugs.winehq.org/attachment.cgi?id=54046
Console output from 1.9.6.

Jack Keane 2: The Fire Within (a point and click adventure game) shows what
appears to be corrupted shadows everywhere, including the title screen which is
often completely black because of this.

This can be reproduced using version 1.0.3 (via the GOG 2.0.0.5 installer), as
well as the 1.0.0 demo (unfortunately only available in German). These are the
only versions I have to test.

Menus and other text are completely unaffected, but the game is unplayable as
is because you cannot see what is going on in-game. Adjusting the video
resolution or graphics detail quality in-game has no effect. There is a warning
"The application requested more than one back buffer, this is not properly
supported. Please configure the application to use double buffering (1 back
buffer) if possible." (and adjusting this in the application does not appear
possible) but it is not clear that this warning is related.

Tested on 1.9.6 and 1.9.6-staging in 32-bit wine prefixes on x86-64 hardware on
Debian stretch. Tested various Wine registry settings (adjusting GDI, video
RAM, etc.) without success. Overriding d3dx9 and/or physx using winetricks
doesn't help. This problem has been around for a long time so is not a
regression, but it looks like I never got around to filing a bug report
earlier.

There are warnings like:
[WAR] (18:25:21) pkg\data_bin.zip - Unable to open file orb_health.bin, error
was 'Unknown error.'
which suggest a problem extracting a file from one of the included zip files. I
can confirm those files don't exist, and that it this is normal. For
comparison, I installed the game under Windows 8.1 and ran a recursive diff
against what was installed there (under the Program Files folder) and in my
wineprefix, and they were identical (aside from things related to the
installation path), suggesting that there was in fact no issue with
installation and it's normal for some files to be missing from those zip files.

Note that a file called settings.txt is created in My Documents/Jack Keane und
das Auge des Schicksals - Demo the first time the game is ran. Setting the
display_splash_screens variable to false saves a lot of time while testing, as
the splash screens work fine and don't need testing.

I believe the game would work perfectly if not for this shadow corruption
issue. Jack Keane 1 does not have this problem.

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