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enricobuehler 9074781acd feat(clients/windows): screen-module restructure + parity features (speed test, native mode, capture UX)

Structure: split the 1400-line app.rs into per-screen app/ modules (mod=root/
router, hosts, connect, pair, speed, settings, licenses, stream, style) with
shared card/header/busy-page builders and setting_combo/toggle helpers; the
re-render rule (thread-driven state lives in root use_async_state, flows down
as props) is now documented at the module root.

Parity features the other clients already had:
- "Native display" resolves the real monitor mode at connect
  (MonitorFromWindow -> EnumDisplaySettingsW; was a hardcoded 1080p60)
- per-host network speed test: saved-host card button + a results screen
  (probe burst -> goodput/loss -> ~70% recommended bitrate applied in one
  tap; stale runs invalidated by generation) and `--headless --speed-test`;
  the bitrate setting becomes a free-form NumberBox so the recommendation
  round-trips
- forget host (ContentDialog confirm -> KnownHosts::remove_by_fp)
- settings: forwarded-controller picker (pads/pinned/set_pinned now wired),
  gamepad type, host compositor, capture-system-shortcuts; the previously
  dead Settings.compositor / inhibit_shortcuts are honored (shortcuts off =
  Alt+Tab/Alt+Esc/Ctrl+Esc/Win act locally)
- click-to-recapture after a Ctrl+Alt+Shift+Q release; the HUD hint tracks
  the live capture state

Perf: the input hook caches lock geometry (clip rect + contain-fit scale) at
engage instead of GetClientRect per WM_MOUSEMOVE; the audio jitter ring trims
via drain() and reuses the render scratch buffer.

Validated on the bare-metal box: --discover, synthetic-host loopback E2E
(TOFU -> clock skew -> HEVC negotiate -> D3D11VA init -> session end),
speed-test E2E, and the WinUI shell rendering in the console session via
PsExec (SSH/session-0 cannot create windows, pre-existing 0x80070005).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

2026-07-02 12:16:19 +02:00

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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 SwapChainPanel composition 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_HOME must be an ASCII path — non-ASCII characters break SDL3's MSVC precompiled-header build. Packaging (MSIX manifest, signing) lives in packaging/.

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

Documentation — quick start, pairing, troubleshooting
Project README — the host, the other clients, and how it all fits together

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