[PATCH 0/4] MR6042: d3d9: Miscellaneous tests/fixes.

[Connor McAdams (＠cmcadams)]

The first two patches here address an issue I encountered when using Wine's d3dx9 with DXVK in the game Command and Conquer 3. The game calls `D3DXLoadSurfaceFromMemory` on a multisampled render target. This ends up going through the `lock_surface()` helper in d3dx9, which eventually calls `UpdateSurface()` in `unlock_surface()` to copy the staging surface back to the multisampled render target. This succeeds on wined3d even though it shouldn't, and fails on DXVK like it should.

The second two patches address an issue reported in Empires: Dawn of the Modern World, where the game expects a device reset to reset the scene state.