[Bug 28945] Armored Fist 3 shows only black screen after starting
wine-bugs at winehq.org
wine-bugs at winehq.org
Wed Nov 2 16:07:21 CDT 2011
http://bugs.winehq.org/show_bug.cgi?id=28945
Austin English <austinenglish at gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|CLOSED |RESOLVED
Resolution|INVALID |FIXED
--- Comment #7 from Austin English <austinenglish at gmail.com> 2011-11-02 16:07:21 CDT ---
(In reply to comment #4)
> Created attachment 37236 [details]
> patch
>
> This is probably invalid. What seems to happen is that the application pushes
> crap (including -nan) onto the FPU stack, which then results in FPU stack
> overflows in the implicit matrix multiplication in glOrtho(). The end result is
> a projection matrix with -nan's in it. When compiled with -O2, the matrix
> multiplication in (gdi32) CombineTransform() ends up clearing enough of the FPU
> stack for glOrtho() to work. This does result in transformation matrices with
> -nan in them, but apparently this has no negative effects. The attached patch
> avoids the matrix multiplication in set_blit_dimension(), but doesn't change
> the fact that the application is essentially broken.
http://source.winehq.org/git/wine.git/commitdiff/1c91b082203bb62e7a28c63fd9befc391d29ad7f
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