[Bug 30404] New: Galactic Civilizations 1: severe slowdown during ships battles

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=30404

             Bug #: 30404
           Summary: Galactic Civilizations 1: severe slowdown during ships
                    battles
           Product: Wine
           Version: 1.5.1
          Platform: x86-64
               URL: http://www.galciv1.com/download.asp
        OS/Version: Linux
            Status: NEW
          Keywords: download
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: frederic.delanoy at gmail.com
    Classification: Unclassified


Created attachment 39744
  --> http://bugs.winehq.org/attachment.cgi?id=39744
new Data dir

To reproduce:
- download and install 1.03 demo version from above URL in a clean wineprefix
(same issued with fully patched retail version)
- replace Program Files/Strategy First/Galactic Civilizations Demo/Data dir
with the attached file
- launch the game (wait until intro screens are passed)
- hit "Restore Last Civilization" in the main menu
- hit 3 times the different "Done" buttons
- right-click on the lower ship to start the battle
(hit Esc then "Quit Game" to exit the game once the battle is finished)

=> combat much slower than normal (should only take a couple of seconds)

Setting HKCU\Software\Wine\Direct3D\DirectDrawRenderer=gdi in the registry
somehow fixes/workarounds the issue.

Configuration:
- wine-1.5.1-219-g4b3e4fa (same with 1.5.1 save for unrelated bug 30213)
- linux 3.0
- nVidia driver 295.33 (x86_64)
- Xorg 1.10.4

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