2 Commits

Author	SHA1	Message	Date
enricobuehler	1fc6f73784	perf(host/linux): NV12 GPU convert — feed NVENC native YUV, off the contended SM (Tier 2A) ... The Linux zero-copy tiled-GL path can now produce NV12 (BT.709 limited range) on the GPU and feed NVENC native YUV, deleting NVENC's internal RGB->YUV CSC — which runs on the SM/3D-compute engine a saturating game pins at 100% (the game-vs-encode contention headache). Windows already does this via the D3D11 video processor; this closes the Linux gap. See docs/host-latency-plan.md §2A. Gated behind PUNKTFUNK_NV12 (default OFF → the RGB/BGRx path is byte-for-byte unchanged; zero regression). Only the tiled EGL/GL path converts; the LINEAR/Vulkan-bridge (gamescope) path stays RGB. - zerocopy/egl.rs: Nv12Blit — BT.709 limited Y pass (R8, full-res) + UV pass (RG8, half-res, GL_LINEAR 2x2 average); both CUDA-registered; import_nv12. - zerocopy/cuda.rs: two-plane DeviceBuffer (Y W*H@1B + interleaved UV (W/2)*2 x H/2), paired Y+UV pool, copy_mapped_nv12 + copy_nv12_to_device, on the per-thread priority stream (dmabuf-recycle sync preserved). - encode/linux.rs: nvenc_input(Nv12)->NV12; submit_cuda copies two planes into NVENC's surface; VUI signalled BT.709 limited (colorspace/range/primaries/trc). - capture/linux.rs: gate (PUNKTFUNK_NV12 && tiled), report format Nv12. - main.rs + zerocopy/mod.rs: `nv12-selftest` subcommand. Validated on RTX 5070 Ti two ways: (1) nv12-selftest — synthetic RGBA->NV12 round-trip vs a BT.709 reference, max abs error Y=0.56/U=0.33/V=0.26 LSB; (2) live capture->NV12->NVENC->decode of animated red content matches the RGB path's colour (avg RGB 230,18,18 vs 231,18,20). build/clippy/fmt green. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-18 23:39:11 +00:00
enricobuehler	bfd64ce871	rename: lumen → punktfunk, everywhere ... Full project rename, decided 2026-06-10: - Crates/binaries: punktfunk-core / punktfunk-host / punktfunk-client-rs. - C ABI: punktfunk_* symbols, Punktfunk* types, include/punktfunk_core.h, PUNKTFUNK_FEATURE_QUIC guard (header regenerated; cbindgen renames updated, incl. PUNKTFUNK_BTN_*/PUNKTFUNK_AXIS_* wire constants). - Protocol: punktfunk/1 — control-plane magic LMN1 → PKF1, nonce salt lmn1 → pkf1. WIRE BREAK: clients must be rebuilt from this revision. - Env knobs: PUNKTFUNK_VIDEO_SOURCE / PUNKTFUNK_COMPOSITOR / PUNKTFUNK_ZEROCOPY / …. - Host config dir: ~/.config/punktfunk (the box's dir was migrated in place — the persistent identity is unchanged, pinned fingerprints stay valid). - Swift package: PunktfunkKit + PunktfunkCore.xcframework + PunktfunkConnection (Sources/PunktfunkClient app + tests renamed with it); build-xcframework.sh updated. - scripts/: 60-punktfunk.rules, punktfunk-host.service; OpenAPI doc regenerated. Also: scripts/headless/run-headless-kde.sh — full headless Plasma bringup. Root cause of "desktop but no apps/settings" over the stream: plasmashell launched without XDG_MENU_PREFIX=plasma-, so the launcher resolved a nonexistent applications.menu and rendered an empty menu. The script sets the complete KDE session env (menu prefix, KDE_FULL_SESSION, session version) and rebuilds ksycoca before starting plasmashell. Gate: 97/97 tests, clippy -D warnings (both feature sets), fmt, C-ABI harness PASS, zero lumen references left outside .git. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-10 13:11:59 +00:00