On Windows the WARP adapter is always present, so applications commonly call `IDXGIFactory4::EnumWarpAdapter()` without checking the returned `HRESULT` and immediately dereference the returned adapter pointer. Wine's stub returns `E_NOTIMPL` without touching `*adapter`, which crashes such applications on startup. The 3DMark DX12 benchmarks (Time Spy, Speed Way, Steel Nomad, Solar Bay) all crash this way (`fixme:dxgi:dxgi_factory_EnumWarpAdapter ... stub!` immediately followed by a `c0000005` access violation dereferencing the never-written adapter pointer); the DX11 Fire Strike benchmark is unaffected. This returns the first adapter instead, following the same approach `D3D11CreateDevice()` already takes for `D3D_DRIVER_TYPE_WARP` (falling back to hardware). Properly enumerating a separate software adapter with `DXGI_ADAPTER_FLAG_SOFTWARE` set — on Windows 8+ WARP appears at the end of the `EnumAdapters()` list — would require wined3d support and is left for the future; the new test marks the WARP-specific desc checks `todo_wine` accordingly. Verified with 3DMark Time Spy on macOS (dxgi built from CrossOver 26.2's Wine, which is identical to upstream in this area, running on wined3d + vkd3d): without the change it crashes instantly at startup right after the `EnumWarpAdapter` fixme; with it the benchmark starts and runs to completion. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/11395