Fullscreen mouse y-direction offset on Mac OS devices with camera notch #457
Description
On Mac OS devices with camera notch (e.g. Apple Silicon Macbooks), when rendering in full screen, the OS moves the drawable screen area below the camera notch but reports the wrong y-resolution when calling SDL_GetDesktopDisplayMode(...).
This lead to an improper calculation of m_flMouseYScale, which then leads to mouse clicks targeting the wrong area, i.e. users have to aim below the buttons in the menu to hit them.
To fix this, we have to call SDL_GL_GetDrawableSize(...) which should return the proper resolution for all system.
I have created a PR #456 that solves this issue. It should also work on Windows and Linux, but I have only tested it on Mac OS with a camera-notch device using all offered resolutions in windowed and fullscreen mode.