wiiu/audio: Open device in new thread if running on another core#88
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GaryOderNichts merged 1 commit intodevkitPro:wiiu-sdl2-2.28from Sep 10, 2025
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AX initialization needs to be done on CPU1, otherwise interrupts won't be handled properly. Previously this was attmpted to be done using `OSSetThreadAffinity` to change the affinity of the current thread. Unfortunately `OSSetThreadAffinity` does not work when called for the currently running thread. This caused issues when an SDL audio device was opened from a thread not running on CPU1. This commit now creates a new thread running on CPU1 for AX initialization, and joins it before moving on.
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AX initialization needs to be done on CPU1, otherwise interrupts won't be handled properly.
Previously this was attempted to be done using
OSSetThreadAffinity, to change the affinity of the current thread.Unfortunately
OSSetThreadAffinitydoes not work when called for the currently running thread. This causes issues when opening an SDL audio device from a thread not running on CPU1.This commit now creates a new thread running on CPU1 for AX initialization, and joins it before moving on.
Currently marked a draft until further testing is done.