forked from unom/punktfunk
enricobuehlerandClaude Fable 5
5742ec9548
One signing pass over the 2026-07-30 audit findings: - Timing math unified (D4): monitor-description and target modes now come from ONE IddSampleDriver-exact builder differing only in vSyncFreqDivider; the virtual-display-rs legacy formula (width-less pixel rate, deliberately fractional vSync) is gone. - EDID (D5): the preferred-timing DTD is built from the SESSION's mode when it fits the encoding (pf-driver-proto's tested builder; 1080p60 stays the fallback); the range-limits descriptor covers everything the driver can advertise (max clock 150 MHz → 2550 MHz, max-H +255 — the old limits were violated by the driver's own 1080p120 default); product code 0 → 1. Deliberately still no HDMI VSDB — documented in the module doc. - INF (D6): UmdfFileObjectPolicy=AllowNullAndUnknownFileObjects added (the sibling drivers all carry it); the dead DeviceGroupId (inert under ProcessSharingDisabled) dropped; the IddCx0102-vs- IddMinimumVersionRequired=10 pairing documented as deliberate — 0102 is the extension's registered identity, not a version request. - Watchdog lifecycle (D7): device cleanup now stops the host-liveness thread (it ran forever and its reap raced device teardown over the same monitor list). - Drain path off the mutex (D8): the per-frame has/take_frame_channel checks (≥60 locks/s per worker on the mutex the whole control plane, the mode DDIs and the watchdog contend) are gated by a delivery generation counter — the steady state takes no lock. - Adapter cache (D9): last-write-wins slot instead of a OnceLock, and a D0 re-entry from a REAL low-power state clears + re-inits — the stale pre-power-cycle handle used to wedge every later IOCTL_ADD. - Realtime GPU priority (D10): IddCxSetRealtimeGPUPriority is now A/B-able without a rebuild (PFVD_NO_RT_GPU, machine env) — no canonical IDD driver raises it, and it preempts the game's and DWM's queues at a level apps can't reach. - Logging (D2): the logger rides file_log_enabled() as a whole — a RELEASE driver without the opt-in no longer OutputDebugStringA's (+2 allocs) per logged event. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>