[Bug 30117] New: patch for ddraw.c for SetCooperativelevel

http://bugs.winehq.org/show_bug.cgi?id=30117

Bug #: 30117
           Summary: patch for ddraw.c for SetCooperativelevel
           Product: Wine
           Version: unspecified
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

According to documentation for SetCooperativeLevel, flags DDSCL_NORMAL and
DDSCL_EXCLUSIVE, or DDSCL_FULLSCREEN cannot be set together. Wine`s
implementation is fully compatible with documentation, however exists at least
one game, which violates this restriction (Rig-n-roll 2, Dal`noboyshiki 2).

During startup this game tries to set coopLevel with following parameters:
DDSCL_FULLSCREEN DDSCL_ALLOWREBOOT DDSCL_NORMAL DDSCL_ALLOWMODEX
DDSCL_EXCLUSIVE.

Implementation of SetCooperativeLevel prohibits this mask (and returns with
DDERR_INVALIDPARAMS error), and game unable to start with message: "this
computer does not have graphics accelerator".

In attachment patch for function IDirectDrawImpl_SetCooperativeLevel, which
allows to run this application.