SDL caches the result of this call internally, but the first call to this function is not necessarily
fast, so plan accordingly.
macOSandiOSSpecificFunctionality: If the application is in a ".app" bundle, this function returns the
Resource directory (e.g. MyApp.app/Contents/Resources/). This behaviour can be overridden by adding a
property to the Info.plist file. Adding a string key with the name SDL_FILESYSTEM_BASE_DIR_TYPE with a
supported value will change the behaviour.
Supported values for the SDL_FILESYSTEM_BASE_DIR_TYPE property (Given an application in
/Applications/SDLApp/MyApp.app):
• resource: bundle resource directory (the default). For example:
/Applications/SDLApp/MyApp.app/Contents/Resources
• bundle: the Bundle directory. For example: /Applications/SDLApp/MyApp.app/
• parent: the containing directory of the bundle. For example: /Applications/SDLApp/Nintendo3DSSpecificFunctionality: This function returns "romfs" directory of the application as it is
uncommon to store resources outside the executable. As such it is not a writable directory.
The returned path is guaranteed to end with a path separator ('\' on Windows, '/' on most other
platforms).