D424 - A flip completes the instant it is submitted
Status: assumed Date: 2026-08-31
sceVideoOutSubmitFlip completes synchronously: the
port's completed-flip count advances on submit, and
sceVideoOutGetFlipStatus presents that count at the
structure's documented leading field. No other field of the status
structure is written.
Why: A headless run has no scanout and no vertical blank to advance a queued flip later, so completing on submit is the only model available; a guest polling for the count to move sees it move. The rest of the flip-status layout has no citable source, so it is left unwritten rather than guessed.
Rejected: modelling a pending-flip count that only clears on a simulated vertical blank - no lawful source describes the timing, and nothing measured needs it.