SVGA_CB_FLAG_DX_CONTEXT
((cur->cb_header->flags & SVGA_CB_FLAG_DX_CONTEXT) &&
cur->cb_header->flags |= SVGA_CB_FLAG_DX_CONTEXT;
cur->cb_header->flags &= ~SVGA_CB_FLAG_DX_CONTEXT;
header->cb_header->flags |= SVGA_CB_FLAG_DX_CONTEXT;
header->cb_header->flags &= ~SVGA_CB_FLAG_DX_CONTEXT;
if (!(header->cb_header->flags & SVGA_CB_FLAG_DX_CONTEXT))