d3d9: update locked_rect only if wined3d_surface_map succeeded

[Stefan Dösinger]

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Am 2013-10-03 21:45, schrieb Henri Verbeet:
> On 3 October 2013 21:16, Lasse Rasinen <lrasinen at iki.fi> wrote:
>> According to debugging output, Artemis Spaceship Bridge Simulator
>> 2.0 calls LockRect twice on the same texture (for whatever
>> reason) and crashes.
>> 
>> http://bugs.winehq.org/show_bug.cgi?id=34271
>> 
>> This change prevents the locked_rect being overwritten with
>> garbage in that case, and the game no longer crashes.
>> 
> I think this patch makes sense, but could you please add a test
> case as well? Ideally we'd also have similar tests for other
> resources (i.e., textures, volumes, vertex buffers, index buffers)
> and D3D versions (ddraw, d3d8), but that's not a strict
> requirement.
I'd expect that the correct behavior is to set pBits to NULL.
test_volume_locking() demonstrates this for volumes.

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