enricobuehler
0899e53903
Latency plan P2.1 (design/first-frame-and-resize-latency.md): a new additive control-plane op lets the host refresh a LIVE monitor's advertised target-mode list to lead with an arbitrary new mode (IddCxMonitorUpdateModes2 — the same IddCx 1.10 *2 family this driver already requires, so no new OS floor). This removes the 'mode list frozen at ADD' constraint that forced the mid-stream resize through a REMOVE->ADD monitor hotplug: the monitor's OS identity, its swap-chain worker and the retained FrameStash all survive an in-place mode set. Protocol v4 is ADDITIVE over v3: the host's handshake floor stays at v3 (MIN_DRIVER_PROTOCOL_VERSION) and gates the in-place path on the reported version, keeping re-arrival as the permanent fallback. The driver's stored mode list is swapped before the DDI and reverted if it fails, so the OS and the mode-DDI callbacks always agree. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
pf-driver-proto
The shared host ↔ driver binary contract for punktfunk's Windows pf-vdisplay virtual display — the control IOCTLs and the IDD-push frame transport, defined exactly once.
It's a path dependency of both the host workspace (crates/punktfunk-host)
and the out-of-workspace driver workspace (packaging/windows/drivers/),
so it must resolve identically from either build graph. That's why it's deliberately self-contained:
no_std (+ alloc), platform-neutral (GUID/LUID are plain integers each side converts to its own OS
type), and free of *.workspace = true inheritance.
Defining every wire struct here — with const size/offset asserts and bytemuck round-trips — turns
host↔driver ABI drift into a compile error instead of a silent frame or IOCTL corruption.
See the crate root (src/) for the wire types; the Windows virtual-display design is in
the internal planning repo (punktfunk-planning: windows-virtual-display-rust-port.md).