enricobuehler
ab6790ef6c
A saved host that stopped advertising on mDNS but has a learned Wake-on-LAN MAC was routed into a wake-and-WAIT-for-mDNS flow instead of being dialed. For a host reached over a routed network (Tailscale/VPN/another subnet) mDNS never sees it, so the wait could never succeed and reconnects were impossible — the host log showed no connection attempt at all. The tile's Offline pip and this connect gate shared the same LAN-only `advertises`/`liveAdvert` predicate, so a perfectly reachable host read as unreachable. The first connect worked only because the MAC hadn't been learned yet (a direct dial); once learned, every reconnect wedged in the waker. All four full clients carried this pattern (deliberate mirrors of the Apple `HostWaker`). Each now DIALS FIRST: fire the magic packet up front (fire-and-forget — harmless if the host is awake, and a genuinely-asleep box is booting while the dial times out) and attempt the connection unconditionally. Only a FAILED dial falls into the visible "Waking…" wait, whose redial carries no fallback so it can't loop. A fingerprint-mismatch/trust-rejection failure means the host ANSWERED, so it never takes the wake path. - apple: SessionModel.connect gains `onUnreachable`; startSession dials first. - linux (relm4): AppMsg::WakeConnect wakes+dials; a per-request wake_fallback is armed and consumed in SessionExited, matched by fingerprint/address. - windows: initiate_waking + ConnectOpts.wake_on_fail; the worker's Failed arm escalates to wake_and_connect only on a non-trust failure. - android: doConnectDirect gains onFailure; doConnect wakes+dials first. Decky was already correct (always launches `--connect`; WoL fire-and-forget). Explicit "Wake host" menu actions are unchanged — waiting on mDNS is right when the user explicitly asked to wake a box. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
punktfunk — Windows client
The native Windows app for streaming a punktfunk host to your PC. A modern WinUI 3 app that discovers hosts on your network, pairs with a PIN, and streams at your display's own resolution and refresh rate — with a hardware-accelerated D3D11 video path and HDR.
It's pure Rust: the UI is WinUI 3 driven through windows-reactor
(a declarative, React-like framework), and it links the shared punktfunk-core directly to speak
the fast punktfunk/1 protocol.
Features
- Hardware decode, GPU present — FFmpeg HEVC with a D3D11VA zero-copy path (decoder and
presenter share one D3D11 device; NV12/P010 textures sampled straight into a
SwapChainPanelcomposition swapchain), with a robust software-decode fallback. - HDR10 — advertise 10-bit/HDR, detect PQ in-band, and flip the swapchain to
R10G10B10A2+ ST.2084 with HDR10 metadata. - Your display's native mode — the host builds a virtual display at exactly your WxH@Hz.
- Audio both ways — WASAPI render + mic capture.
- Full controller support — SDL3 gamepads with rumble, lightbar, and DualSense feedback.
- Your display's native mode, really — "Native display" resolves the actual size + refresh of the monitor the window is on at connect time.
- Find hosts automatically — mDNS discovery lists hosts on your LAN, alongside saved and manual entries. First connect does a one-time SPAKE2 PIN pairing (or TOFU on trusted LANs), then reconnects on a pinned identity. Saved hosts carry per-host actions: a network speed test (probe burst over the real data plane → recommended bitrate, applied in one tap) and forget.
- Polished shell — host cards, settings (resolution / refresh / host compositor / decoder / codec / bitrate / HDR / forwarded controller / gamepad type / system shortcuts / audio channels / mic), a status-chip stream HUD, and the full trust surface. Stream input uses Win32 low-level hooks with Moonlight-style capture: Ctrl+Alt+Shift+Q releases the pointer, a click on the stream re-captures it, and system shortcuts (Alt+Tab, Win, …) can act locally or forward to the host.
Builds and ships for both x64 and ARM64 as a signed MSIX.
Get it
Install the signed MSIX from the package registry — see docs.punktfunk.unom.io/docs/install-client. A stock Moonlight client also works over GameStream if you prefer.
Build from source
Windows-only (the crate builds as a stub on other platforms so the workspace stays green). You need
the MSVC toolchain, an FFMPEG_DIR FFmpeg tree, and CMake (SDL3 builds from source). windows-reactor's
build.rs downloads the Windows App SDK NuGets and needs CARGO_WORKSPACE_DIR set.
cargo build -p punktfunk-client-windows --target x86_64-pc-windows-msvc
# CLI paths for testing (no window):
punktfunk-client --discover # list hosts on the LAN
punktfunk-client --headless --connect host[:port] [--pin HEX] # connect, count frames, print stats
punktfunk-client --headless --speed-test --connect host[:port] # probe burst → recommended bitrate
CARGO_HOMEmust be an ASCII path — non-ASCII characters break SDL3's MSVC precompiled-header build. Packaging (MSIX manifest, signing) lives inpackaging/.
Layout
src/
main.rs entry point + CLI paths (--discover · --headless · --speed-test)
app/ WinUI 3 shell (windows-reactor), one module per screen:
mod (root/router) · hosts · connect · pair · speed · settings ·
licenses · stream · style (shared cards/pills/monograms)
present.rs · gpu.rs SwapChainPanel D3D11 composition swapchain; shared D3D11 device
video.rs FFmpeg HEVC decode (D3D11VA zero-copy + software fallback)
audio.rs WASAPI render + mic capture
gamepad.rs SDL3 controllers + rumble/lightbar/DualSense feedback
input.rs Win32 low-level hooks → host input (pointer lock · click-to-capture)
session.rs session lifecycle over the NativeClient connector (+ speed probe)
trust.rs · discovery.rs persistent identity, TOFU/PIN pairing, mDNS browse
packaging/ MSIX manifest, signing, pack script
Related
- Documentation — quick start, pairing, troubleshooting
- Project README — the host, the other clients, and how it all fits together