[Bug 20498] Civilization IV rendering is broken

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=20498


Ville Aakko <ville.aakko at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |ville.aakko at gmail.com




--- Comment #8 from Ville Aakko <ville.aakko at gmail.com>  2010-06-05 09:24:16 ---
Hi,

I can confirm this bus since I've been having the same problem for some time. I
finally got the time to make the regression testing via git-bisect (it didn't
take that long after all). The result:
"
#git bisect bad
b5da7f49d332ed5d64be1256e14035af74a7efa2 is the first bad commit
commit b5da7f49d332ed5d64be1256e14035af74a7efa2
Author: Henri Verbeet <hverbeet at codeweavers.com>
Date:   Thu Jul 2 10:01:37 2009 +0200

    wined3d: Don't reuse random GL contexts during initialization.

    Obviously there's no guarantee about the state of such a context. The
specific
    problem is that it might have GL_UNPACK_CLIENT_STORAGE_APPLE enabled,
causing
    some glTexImage2D() calls to fail, but it's a bad idea in general.

:040000 040000 91e52fba45ce42a6e4c1fce4281308745aea44cf
ae1eecf091bdc72d34e708399ebd1670b198e00f M      dlls
"

I only tested the game main menu after every compile. If you need the git
bisect log I will provide it.

FWIW, even with a recent wine (with the regression) I noticed that if I run it
in a window (instead of full screen - i.e. either a virtual dekstop smaller
than the real resolution, or set Civilization IV to run in a window), the
rendering isn't corrupted as in the screenshot. Instead, some 3D models (most
notably fishing boats) are corrupted and cause weird artifacts on the screen.
But even then the game is playable. 

Hope this helps!

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