[d3d9] Sword and Fairy 4 (1621680) black screen or flickering

[gofman]

That works fine on native WIndows or with wined3d (the issue is reproducible with dxvk on Windows as well).

It seems to me that the culprit is that the game always calls Present() twice (one after another immediately). The game has single swapchain with one backbuffer and D3DSWAPEFFECT_DISCARD. I guess that always results in the image copy on Windows and wined3d but with dxvk two images get swapped twice and correct image present is always followed by black image present which never gets rendered to.