DDA only re-read the duplication format/size on rebuild (recreate_dupl) and
initial open. A mid-stream HDR<->SDR flip (FP16<->BGRA — e.g. the SudoVDA output
dropping out of HDR for the secure desktop) or a resolution change that does NOT
raise ACCESS_LOST left hdr_fp16/width/height stale, so present_acquired copied
into a mismatched-format/size target — the secure-desktop "works once, then HDR
breaks" symptom. Re-read the acquired texture's desc every frame (as Apollo does)
and rebuild on a real change instead of presenting a mismatched frame; throttled
like the ACCESS_LOST path so a flapping toggle can't hammer DuplicateOutput.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
enricobuehler
995db69387