mirror of
https://github.com/libsdl-org/SDL.git
synced 2025-09-05 19:08:12 +00:00
a17f3ba916
- No more tapdance to either join the audio device thread or have it detach itself. Significant simplication of and fixes to the locking code to prevent deadlocks. - Physical devices now keep a refcount. Each logical device increments it, as does the existence of a device thread, etc. Last unref destroys the device and takes it out of the device_hash. Since there's a lot of moving parts that might be holding a reference to a physical device, this seemed like a safer way to protect the object. - Disconnected devices now continue to function as zombie devices. Playback devices will still consume data (and just throw it away), and capture devices will continue to produce data (which always be silence). This helps apps that don't handle disconnect events; the device still stops playing/capturing, but bound audio streams will still consume data so they don't allocate more data infinitely, and apps that depend on an audio callback firing regularly to make progress won't hang. Please note that disconnected audio devices must now be explicitly closed! They always _should_ have been, but before this commit, SDL3 would destroy the disconnected device for you (and manually closing afterwards was a safe no-op). Reference Issue #8331. Fixes #8386. (and probably others).
Simple DirectMedia Layer (SDL) Version 3.0
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. If you are migrating to SDL 3.0 from SDL 2.0, the changes are extensively documented in README-migration.md.
Enjoy!
Sam Lantinga (slouken@libsdl.org)