[Bug 2707] New: crash in glReadBuffer with nvidia-glx

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=2707

Summary: crash in glReadBuffer with nvidia-glx
           Product: Wine
           Version: 20050111
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: wine-directx
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

I've been playing Dungeon Keeper II quite happily for a while now, but for the
last month or so every time I start the game it crashes immediately on the first
move of the mouse.  I had this once a while ago and didn't know what caused it -
I believe a reboot fixed it, so put it down to nvidia hardware wierdness.  This
time however, nothing I can do can make it go away and it is 100% reproducible -
always with the same stacktrace. As far as I can tell, other (non-wine) GL
programs run fine.

By putting in some TRACE statements, I've tracked it down to the
glReadBuffer(GL_FRONT) call in d3ddevice_lock_update() (d3ddevice/main.c:~3670),
called from This->lock_update(...) in Main_DirectDrawSurface_Lock()
(dsurface/main.c:1124).  Unfortunately I don't know anything about GL (or D3D)
so don't know how to debug this further.

A full WINEDEBUG=+ddraw log is available at http://www.inodes.org/~gus/dk2.log
The "made it to __LINE__" lines are my extra debugging traces.