[Bug 8194] Ddraw patch crashes Europa Universalis II and Victoria at start-up

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=8194





------- Additional Comments From cja at gmx.net  2007-16-05 13:48 -------

Ofcourse, "Initalizing graphics" can mean a lot of things, I merely wanted
to point out that during the start-up sequence both games crashes at the
same stage. Yes, I agree, it can be totally different things.

I have not yet figured out what to change in the dsurface testcase
and how to run tests, but I'm working on it.
Meanwhile, I had a look at msdn for IDirectDrawSurfaceImpl_GetSurfaceDesc
(http://msdn2.microsoft.com/en-us/library/ms785087.aspx - hopefully the
correct one) and the only return values that can occur are:
DDERR_INVALIDOBJECT, DDERR_INVALIDPARAMS and DD_OK.
Wine returns DDERR_GENERIC on size 0.
I would guess that DDERR_INVALIDOBJECT is the correct error code.

I did a quick test, changing the error code and ran EU2. Returning invalid 
object instead left the game spinning and after killing it it turned out to be 
a write access page fault.




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