Problem with redraw/initialization in the X11 driver

Chris Thielen chris at
Thu Sep 19 17:37:50 CDT 2002

Is this perhaps related to bug 640?

On Thu, 2002-09-19 at 09:54, Martin Cracauer wrote:
> Hi,
> first of all let me say that I am impressed by the progress that wine
> made in the last months and I also see that working things don't get
> broken for long anymore.  Congrats!
> I have one problem with a game and I think the problem might be easy
> to solve if you point me to the right piece of code.  Basically the
> game (TacOps4) works fine, including all of OpenPlay.dll based
> networking, but there is a redraw problem with the X11 driver.
> When using the game in Wine, I see that Wine often draws white all
> over the main window of this application, and only parts which are
> redrawn manually by the game are rendered correctly.  I think it is a
> safe guess that we see overcautious wine code in action here,
> initially the window to white with good intentions, but the
> application tries to optimize its redraw strategy and hence leaves all
> the white that wine draws.  I tried switching on and off all the X11
> driver options (dga etc.), but the problem was unaffected.  The same
> problem appears in exactly the same way on Linux and FreeBSD.  I am
> using XFree4.2 and the CVS version of DRI.
> I placed a screenshot showing the problem at 
> You see that the main window is mostly white except for one item which
> I just dragged from the small window to the main window, where the
> game redrew just this area of the main window, and a second small area
> of the main window which the game engine redrew for whatever reason.
> Any suggestions about Wine code I should mess around with? Maybe there
> is explicit code which does this whitening that I could disable or
> make more clever?
> A demo of this game is available, showing the same symptoms, in can
> anybody wants to try it.
> Mail me if you are unfamiliar with the game and want to see the bug
> fast, I don't want to clutter up this mail.
> Thanks!
> 	Martin

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