[PATCH 0/1] MR7979: winemac: Set the OpenGL backbuffer size to the size in window DPI.

[Brendan Shanks (＠bshanks)]

Ensures that OpenGL content is correctly sized when DPI scaling is active (either because of a non-DPI-aware app, or display mode emulation).

Tested on M2 Pro/macOS Sequoia with a variety of games (through wined3d and with display mode emulation enabled).

Changing the OpenGL back buffer size was previously only done when the winemac `RetinaMode` was enabled in the registry, now it's always being set. It's possible this could cause problems with other GPUs/drivers.

Also, `sync_context_rect` checks whether `draw_rect_win_dpi` has changed on every call (unlike `draw_rect` which is only checked after `WindowPosChanged` sets the `view_moved` flag). This follows winex11, which checks the DPI-scaled size in every `wglSwapBuffers` call.