[Bug 21812] New: 3dgamestudio.com demos crash on exit

http://bugs.winehq.org/show_bug.cgi?id=21812

Summary: 3dgamestudio.com demos crash on exit
           Product: Wine
           Version: 1.1.39
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Keywords: download
          Severity: normal
          Priority: P2
         Component: directx-d3d
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

The Venice demo at 3dgamestudio.com looks beautiful,
but crashes on exit.

http://server.conitec.net/down/venice.zip
443f94ab15d5bc02921c1e917785f822dcf0f864  venice.zip

Happily, there seems to be a reasonable backtrace:

Unhandled exception: page fault on read access to 0x00000f2c in 32-bit code
(0x7e51e14c).
Backtrace:
=>0 FindContext+0x16d(This=0x19bbc8, target=0x193030)
[dlls/wined3d/context.c:1923] in wined3d 
  1 context_acquire+0x8a(device=0x19bbc8, target=(nil),
usage=CTXUSAGE_RESOURCELOAD) [dlls/wined3d/context.c:2266] in wined3d 
  2 IWineD3DDeviceImpl_Uninit3D+0xa7(iface=0x19bbc8,
D3DCB_DestroySwapChain=0x7e653c5d) [dlls/wined3d/device.c:1705] in wined3d 
  3 IDirect3DDevice9Impl_Release+0x126(iface=0x192680) [dlls/d3d9/device.c:273]
in d3d9 
  4 in acknex (+0x6435a) 
  5 in reflectionparticle (+0x101e) 
0x7e51e14c FindContext+0x16d [dlls/wined3d/context.c:1923] in wined3d: movzbl  
    0xf2c(%eax),%eax    
1923            old_render_offscreen = context->render_offscreen;