https://bugs.winehq.org/show_bug.cgi?id=52354
--- Comment #7 from Gcenx gcenx83@gmail.com --- To update.
This bug affects macOS High Sierra and below as that’s the last version of macOS that doesn’t require a Metal capable GPU.
The stub method was only confirmed to work on 10.13 (not sure about other versions as I own a Metal capable Mac), on 10.9 the stub gets winemac.drv to at least display but the window doesn’t get rendered to the window scale. Winecfg loads but when attempting to press a button it doesn’t line up with that’s drawn. (See attachment https://bugs.winehq.org/attachment.cgi?id=71534)
Reverting the 5 related commits on 10.9 resulted in fully functional winemac.drv that renders/draws correctly.