Fix for rendering issues when calling GetDepthStencilSurface

[Rico Schüller]

Andrew Fenn schrieb:
> I'm really stumped on why this even works because after writing a test
> (attached) and running on windows it shows that ppZStencilSurface IS
> getting set to null when D3DERR_NOTFOUND is returned.
>
> Could it be that there is something else behind this problem which is
> unrelated to what I have been looking at?
>
> Regards,
> Andrew
>
> On Sat, Aug 30, 2008 at 1:05 AM, Stefan Dösinger <stefan at codeweavers.com> wrote:
>   
>>> When IWineD3DDevice_GetDepthStencilSurface returns WINED3DERR_NOTFOUND
>>> it was setting ppZStencilSurface to null. This was the cause of
>>> rendering issues with the 3d models in spore.
>>>       
>> Can you write a test for this? I think we have some depth stencil tests in dlls/d3d9/tests/device.c which you could use to test this.
>>
>> I think you are right with this patch - I vaguely remember writing a test for a different getter function, but it is better to be sure
>>
>>
>>
>>
>>
>>     
>> ------------------------------------------------------------------------
>>
>>
I've tried some ugly things and found a way to produce this in a test. 
The test works on windows but not on wine. Removing the 
*ppZStencilSurface = NULL; works for a part of the test. But the return 
value is different.

Cheers
Rico
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