This fixes black screen during DirectShow video playback in some VisualArts engines applications. The affected applications use `put_Owner()` and then `put_WindowStyle(WS_CHILD)` soon after making the graph run with AutoShow enabled, which removes `WS_VISIBLE` on wine. On native, using `put_WindowStyle()` without `WS_VISIBLE` after the window is made visible retains window visibility.
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https://gitlab.winehq.org/wine/wine/-/merge_requests/8825
Performance issues can occur when a video output sample has a 2D buffer,
because winegstreamer currently outputs only to a linear buffer, which
must then be copied into the 2D buffer. Worse, a linear lock of the 2D
buffer requires the current contents to be copied to a linear buffer,
even when we intend to overwrite it, because MF linear buffers do not
support write-only locking.
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v3: winegstreamer: Support 2D sample buffer.
mf: Test color convert 2D buffers.
mf: Test WMV decoder 2D buffers.
mf: Test H.264 decoder 2D buffers.
mf: Test sample copier 2D buffers.
mfplat/tests: Test NV12 negative stride in MFCreateMediaBufferFromMediaType().
mf/tests: Remove todo for an H.264 decoder test.
mf/tests: Stop checking samples at the end of the expected array.
https://gitlab.winehq.org/wine/wine/-/merge_requests/8812