forked from unom/punktfunk
enricobuehlerandClaude Fable 5
739a5f76bf
The Apple client now decodes PyroWave natively on the presenter's own MTLDevice —
no MoltenVK, no upstream C++ in the app. Completes and wires up the decoder whose
early working-tree snapshot rode along in 9127c346:
- MetalWaveletShaders.swift: wavelet_dequant + idwt hand-ported from the vendored
GLSL (STORAGE_MODE 0 only; subgroup scans → 32-wide simdgroups; DCShift spec
constant → function constant; precision-1 split: fp16 levels 0-1 / fp32 2-4).
- MetalWaveletDecoder.swift: Swift reimplementation of push_packet/decode_packet
incl. the Phase-4 chunk-aligned window walk (FRAG chains, zeroed missing shards,
the >half-blocks partial rule), init_block_meta's block-index space, and the
42-dequant + 13-idwt dispatch structure with encoder-boundary barriers. SOF-dims
changes rebuild the size-dependent resources, which is also the mid-stream
resize path. Ring of 4 output plane sets on the presenter's queue.
- Presenter: pf_frag_planar (3xR8, the planar_csc.frag twin) + renderPlanar with
a shared present tail; ReadyFrame carries an image enum (.video | .planar).
- Stage2Pipeline: a dedicated PyroWave pump — no VideoToolbox machinery, no
keyframe/re-anchor recovery (all-intra; partials render as localized blur by
design), newest-frame-index staleness guard for late partials.
- Opt-in: "PyroWave (wired LAN)" codec entry (probe-gated, ≈A13 floor via a real
kernel-compile probe), selecting it advertises + prefers the codec and forces
the session SDR (HDR/10-bit/4:4:4 caps dropped, plan contract).
- Core ABI: punktfunk_connection_shard_payload() — the Welcome's negotiated shard
payload, needed by native decoders to walk chunk-aligned AUs.
- Validation: golden fixtures generated by the host encoder + upstream's own
decoder (pyrowave_dump_golden, RTX 5070 Ti); the Metal decode PSNR-matches at
77-88 dB across all planes for dense AND chunk-aligned AUs, and a hole-punched
partial still decodes. Parser unit tests cover the window walk, FRAG chains,
broken chains, the half-blocks gate, and the block-index layout.
Tests: apple 134 green (mac; iOS/tvOS build), host 312 w/ pyrowave on .21,
core 148 w/ quic; clippy/fmt clean.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
punktfunk-docs
The punktfunk documentation site: Fumadocs on TanStack Start (Vite + Nitro/bun preset).
Content lives in content/docs/ as .md/.mdx. This site is the source of truth
for the user-facing guides; design rationale lives in the internal punktfunk-planning repo.
API reference
/api renders the host's management REST API as an interactive
Scalar reference (linked from the top nav, the docs
sidebar, and the landing page). It reads public/openapi.json — a
snapshot of the repo's generated spec. Refresh it after a management-API change:
# from the repo root — regenerate the spec, then copy the snapshot in:
cargo run -p punktfunk-host -- openapi > api/openapi.json
cp api/openapi.json docs-site/public/openapi.json
Develop
bun install
bun run dev # http://localhost:3001 (docs at /docs)
Build & serve
bun run build
bun run start # serves .output/ via Bun
Layout
source.config.ts Fumadocs MDX collection (content/docs)
content/docs/ the docs content (.md/.mdx) + meta.json nav
src/
routes/
__root.tsx RootProvider + html shell
index.tsx landing page
docs/$.tsx catch-all docs renderer (Fumadocs DocsLayout)
api/index.tsx Scalar API reference (reads public/openapi.json)
api/search.ts Orama search endpoint
lib/source.ts Fumadocs loader over the generated collection
lib/layout.shared.tsx shared nav chrome
components/mdx.tsx MDX component map
styles/app.css Tailwind 4 + Fumadocs preset