Re: [PATCH 06/10] dxgi: Set BufferUsage in dxgi_swapchain_GetDesc().

[Henri Verbeet]

Not that DXGI_USAGE_RENDER_TARGET_OUTPUT would necessarily be a bad
default, but it's probably better to either just store a copy of the
original DXGI_SWAP_CHAIN_DESC structure in the swapchain, and read it
again here, or to pass the additional fields to wined3d somehow.