http://bugs.winehq.org/show_bug.cgi?id=32096
--- Comment #4 from Henri Verbeet hverbeet@gmail.com 2012-10-30 05:25:42 CDT --- (In reply to comment #3)
Apparently wined3d_buffer_preload is only used for data inside *vertex buffer* (ie: VBO in GL, I don't know the d3d nomenclature).
This part of the WoW code appears to use *main memory buffer* (ie: vertex array in GL).
Are you saying it uses user pointer draws through wined3d_device_draw_primitive_up()?