Zebediah Figura (@zfigura) commented about dlls/ddraw/device.c:
stride = get_flexible_vertex_size(fvf); size = vertex_count * stride;
- if (!TRACE_ON(ddraw_buffer)) goto old;
I don't think we want this. If we're going to do batching like this we want it to be on by default, and at that point I don't see a reason we'd ever want to turn it off. Since we're writing directly into the streaming buffer now I don't think we should have worse performance even for well-behaved applications.