This prevents VRAM garbage from being displayed before the program draws.

Improves encapsulation.  Avoids a round trip to the main thread.

surface_load_location takes care of this.

strmbase: Don't pass NULL fetched parameter in BaseOutputPinImpl_Connect on external IPin implementation.

None of the callers depend on this.

This is already handled in ddraw_surface_create_texture().

This should be unnecessary.