sceUsbMic input comes from the input side of the RemoteIO unit that
already does the output. The input callback only copies samples into a
lock-free ring buffer, sized so it never allocates, and the CPU thread
drains it into Microphone::addAudioData when sceUsbMic polls, the way
the SDL backend works. Reconfiguring the unit happens on the main thread.
Whether the game is recording is kept apart from whether the unit's
input is on, so recording resumes after an interruption or a trip to
the background, which shut the unit down. The unit also runs, silently,
when sound is off but the game is recording.
While recording, the session is PlayAndRecord, with Bluetooth through
A2DP so headphones keep full quality and the built-in mic is the input.
Permission is asked for on iOS 17+ through AVAudioApplication.
Also moves the microphone recorder homebrew used to test this from
Tools/psp-microphone to pspautotests, as demos/microphone, and updates
the submodule.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- AudioEngine.mm/.h: not in the source list at all, only in the ARC
set_source_files_properties list, and written for manual retain/release
([super dealloc]), so it couldn't have compiled under ARC anyway. The actual
audio path is iOSCoreAudio.mm.
- DisplayManager.mm: empty file, referenced nowhere.
- iOSCoreAudioSetDisplayConnected: never called, so g_displayConnected was
always false and the external-display branch in UpdateSession unreachable.
Also dropped an unused local there.
- AppDelegate: the "screen" property was never assigned, so both view
controllers were setting their frame from [nil bounds], i.e. CGRectZero. The
window sizes the root view anyway. Also removed the stale launchPPSSPP:argv:
declaration (it lives on SceneDelegate now), a forward declaration of a
PPSSPPViewController protocol that doesn't exist, and an unreachable return.
- getView: declared on the base class and implemented identically in both
subclasses, called by nobody.
- bindDefaultFBO: moved the empty implementation to the base class so it isn't
missing there, and dropped the Metal no-op override.
- The unused delta/lastTimestamp computation in displayLinkFired.
Also fixed the viewWillAppear/viewWillDisappear log messages in the GL view
controller, which claimed to resume and pause the display link but don't.
The getView and bindDefaultFBO changes clear three -Wincomplete-implementation
warnings, and the AppDelegate.h one clears a fourth.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JZk5y4Fzw811WJoNWZb8Sc
