Ryan C. Gordon c9ebec4687 iostream: Create properties on-demand instead of upfront.
It's possible that IOStreams might get created and thrown away a lot, perhaps
at any point in an app's lifetime, so it makes sense to avoid doing the work
of maintaining a properties group for each, if the app hasn't requested it,
since this requires a bunch of allocations and locks.

It's not necessarily worth doing this for other SDL objects, like SDL_Window,
since there are likely to only be a few of them, and likely created at startup
and living for the entire lifespan of the app.

Fixes #14436.
2026-07-13 15:33:08 -07:00

Simple DirectMedia Layer (SDL for short) is a cross-platform library designed to make it easy to write multi-media software, such as games and emulators.

You can find the latest release and additional information at: https://www.libsdl.org/

Installation instructions and a quick introduction is available in INSTALL.md

This library is distributed under the terms of the zlib license, available in LICENSE.txt.

Enjoy!

Sam Lantinga (slouken@libsdl.org)

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