[Bug 6230] New: Playing video in Riven causes surrounding surface remain black for the duration of it

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=6230

Summary: Playing video in Riven causes surrounding surface remain
                    black for the duration of it
           Product: Wine
           Version: 0.9.21.
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: wine-directx-ddraw
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

I have just installed the DVD version of Riven and it runs fine with the OSS   
driver. However when playing videos that are embedded in the environment, the   
static surface (outside the region the video is playing) either stays black or   
in some cases reverts to an area previously visited in the game (for   
instance I enter a room and move to see a video inside, the surrounding   
region is that of the room entrance). It looks as if one drawing buffer is   
improperly used, so I tried disabling double buffering without success.   
By the way, shouldn't the ALSA driver provide better sound quality?  
I previously used wine during 2000 and I must say that I was amazed by the   
current version. Thanks for the great work.