Previously they were discarded because SDL didn't expose enough information for apps to differentiate between a low-dpi and high-dpi mode which had the same size in DPI-scaled points. Now the information is available in SDL_DisplayMode.
Fixes#3025.
Simple DirectMedia Layer is a cross-platform development library designed
to provide low level access to audio, keyboard, mouse, joystick, and graphics
hardware via OpenGL and Direct3D. It is used by video playback software,
emulators, and popular games including Valve's award winning catalog
and many Humble Bundle games.
More extensive documentation is available in the docs directory, starting
with README.md