3 Commits

Author	SHA1	Message	Date
enricobuehler	551012bb43	feat(clients): HDR Steps 2-3 — apply mastering metadata + display capability-gate ... Continues docs/hdr-pipeline-plan.md. Steps 0/1 + Step 2 (Windows/Android) already landed in 3526517; this is Step 2 (Apple) + Step 3 (all clients). Client-only — no core/host/ABI change (the 0xCE/next_hdr_meta/color_info surfaces shipped in Step 0). Step 2 — clients APPLY the host's HDR metadata (each remaps from the wire form: ST.2086 G,B,R order, mastering luminance in 0.0001 cd/m2): - Apple: connect via punktfunk_connect_ex5 (resurrects the previously-dead HDR pipeline); nextHdrMeta/colorInfo wrappers + HdrMeta SEI-blob builders; the pump drains nextHdrMeta -> VideoDecoder.setHdrMeta -> CVBufferSetAttachment of MasteringDisplayColorVolume (24B BE) + ContentLightLevelInfo (4B BE) on each HDR pixel buffer (correct for the itur_2100_PQ layer; CAEDRMetadata avoided as ambiguous there). Step 3 — capability-gate: advertise HDR caps ONLY when the display can present it, so an SDR display gets a proper BT.709 stream instead of PQ it would mis-tone-map; an HDR display self-tone-maps from the Step-1/2 mastering metadata. - Windows: present::display_supports_hdr() (DXGI any IDXGIOutput6 colour space == G2084), ANDed with the user HDR setting in session.rs; logs the SDR drop. - Apple: NSScreen.maximumExtendedDynamicRangeColorComponentValue>1 (macOS) / UIScreen.main.potentialEDRHeadroom>1 (iOS) in SessionModel. - Android: Settings.displaySupportsHdr (Display.getHdrCapabilities HDR10/HDR10+) passed through a new hdr_enabled jboolean on nativeConnect; session.rs gates the caps. Validation: Android native (incl. the jboolean gate) builds + clippy clean via cargo-ndk; fmt clean. Windows (MSVC), Apple (Swift) and the Kotlin side are CI/on-glass validated — not compilable on the Linux dev box. Deferred to the RTX box: mid-session Reconfigure SDR-downgrade on monitor move, and confirming the host emits SDR for an SDR client off an HDR desktop. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-21 09:46:58 +00:00
enricobuehler	bbabc04bca	feat(hdr): Windows HDR10 + 10-bit end-to-end, negotiated; non-blocking capture recovery ... Adds true HDR (BT.2020 PQ) and 10-bit (HEVC Main10) streaming, negotiated so an 8-bit/SDR client is never sent a stream it can't decode, plus a robust fix for the capture losing the stream across a secure-desktop transition. Protocol (punktfunk-core/quic.rs): - Hello gains `video_caps` (VIDEO_CAP_10BIT / VIDEO_CAP_HDR), Welcome gains `bit_depth`, both as optional trailing bytes (back-compat). client-rs advertises 10-bit via PUNKTFUNK_CLIENT_10BIT; the connector advertises 0 for now (in-band detection drives the native clients). Regenerated punktfunk_core.h. Windows host: - 10-bit Main10: host enables it only when the client advertised VIDEO_CAP_10BIT AND PUNKTFUNK_10BIT is set; threaded through open_video → NVENC (profile Main10, pixelBitDepthMinus8). - HDR: when the captured desktop is scRGB FP16 (R16G16B16A16_FLOAT, HDR on), copy it to an FP16 surface, composite the cursor there, convert scRGB → BT.2020 PQ 10-bit (R10G10B10A2) via a shader, and encode HEVC Main10 with the BT.2020/PQ colour VUI (ABGR10 input). Fixes the freeze + cursor-trail that came from feeding FP16 into the BGRA path. Reacts dynamically to the HDR toggle. - Capture recovery: rebuild is now a single NON-BLOCKING attempt, throttled to ~4×/s, repeating the last good frame between attempts (format-tagged last_present). During a secure-desktop dwell SudoVDA's output is gone; the old blocking 12 s retry starved the send loop for seconds so the client timed out and disconnected — now the session stays fed (frozen) until the desktop returns. Also seeds a black frame on recovery. Apple client (PunktfunkKit): - Detects HDR in-band from the stream VUI (PQ transfer function), decodes to 10-bit P010, and presents via an rgba16Float + BT.2020 PQ CAMetalLayer with EDR; SDR path unchanged. Switches automatically on a mid-session HDR toggle. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-15 20:28:52 +00:00
enricobuehler	7b10714b62	feat(apple): stage-2 presenter — explicit decode + Metal present + glass-to-glass ... Opt-in (Settings -> Presenter; `punktfunk.presenter`, default stage-1). Stage-1's AVSampleBufferDisplayLayer decodes AND presents internally with no per-frame callback, so neither decode nor present can be stamped or hand-paced. Stage-2 takes explicit control: - VideoDecoder: VTDecompressionSession, async output callback stamps decode-completion, session rebuilt on every IDR / format change. Unit-tested (testVideoDecoderAsyncCallbackDeliversPixels). - MetalVideoPresenter: CAMetalLayer + CVMetalTextureCache + a runtime-compiled BT.709 limited-range NV12->RGB shader, present at the next vsync. The CVMetalTextures + pixel buffer are held until the GPU completes. - Stage2Pipeline: pump thread -> decoder -> newest-ready 1-slot ring; the hosting view's display link drains it once per vsync and stamps capture->present (the display-link target time projected into CLOCK_REALTIME). - LatencyMeter gains record(ptsNs:atNs:offsetNs:); the HUD shows a capture->present (glass-to-glass, modulo host render->capture) line, skew-corrected via clockOffsetNs. Measured live ~11 ms p50 vs ~2.2 ms capture->client. - StreamView / StreamViewIOS host the CAMetalLayer as a sublayer + a CADisplayLink (NSView.displayLink on macOS) when stage-2; input capture + HUD unchanged. The session-active gates switch from `pump != nil` to `connection != nil` so capture engages without a StreamPump. Validated: builds macOS/iOS/tvOS; the decode half is unit-tested; the Metal present is live-validated on glass (correct image + the capture->present number). Colorspace is BT.709 SDR for now; 10-bit/HDR + a pacing policy are later. Plan: docs-site/content/docs/apple-stage2-presenter.md. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-12 15:29:23 +02:00