[Bug 17900] New: RenderTargetLockMode=disabled required for playable display

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=17900

           Summary: RenderTargetLockMode=disabled required for playable
                    display
           Product: Wine
           Version: 1.1.18
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: michael at araneidae.co.uk


On at least two games (Thief 2 and Jedi Knight Dark Forces II, I've not tried
others of this vintage yet) unless the key Wine/Direct3D/RenderTargetLockMode
is set to disable the game display is completely unplayable.

Of course, disabling this key has undesirable side effects: in JKDF2 the HUD is
overlaid by the game display, in Thief2 the in game menu is unusable -- but
this must be a strong clue as to what is going wrong here.

I've tried setting this key to default, readtex, texdraw, textex, and in all of
these cases the effect is a sort of upside-down shimmering stripes.  This
visual effect may be a side effect of what's really going on, because any
attempt at a screen shot capture either a good image or an upside down image.

I think what is actually happening is that the image is constantly alternating
between upsidedown and rightside up!


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