https://bugs.winehq.org/show_bug.cgi?id=49356
--- Comment #20 from Henri Verbeet hverbeet@gmail.com --- (In reply to Jactry Zeng from comment #19)
*format_support |= D3D11_FORMAT_SUPPORT_BLENDABLE;
For what it's worth, in principle that would be WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING/WINED3DUSAGE_QUERY_POSTPIXELSHADER_BLENDING.