[Bug 45747] New: GPU-GPU depth stencil blit is slow (FF XIV)

https://bugs.winehq.org/show_bug.cgi?id=45747

Bug ID: 45747
           Summary: GPU-GPU depth stencil blit is slow (FF XIV)
           Product: Wine
           Version: unspecified
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: directx-d3d
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

When running FFXIV in D3D11 mode, it is horrendously slow because it does
several UpdateSubresource calls to a depth-stencil texture from another
texture. Right now, texture2d_blt will pass this on to a raw_blitter_blit as
WINED3D_BLIT_OP_DEPTH_BLIT, which will ignore it and continue passing it on
until it ends up at the CPU blitter.

I believe a simple fix is to update the conditional in raw_blitter_blit to
allow op == WINED3D_BLIT_OP_DEPTH_BLIT. I don't see an obvious reason why a
depth-stencil blit should be special from the perspective of
glCopyImageSubData. On my system, this significantly improved fps (though still
not quite to matching FFXIV D3D9).