[Bug 8910] New: glViewPort is clamped to the window size

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=8910

Summary: glViewPort is clamped to the window size
           Product: Wine
           Version: 0.9.40.
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P2
         Component: wine-opengl
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

The problem is that FBOs (Frame Buffer Objects) can be bigger than the window 
(They are needed for rendering to a texture). With that bug shadowmaps or 
reflectionmaps are in the most areas dark or black....

A possible position for that bug could be in dlls/winex11.drv/opengl.c line 
1444 and below