forked from unom/punktfunk
Flip both zero-copy levers from opt-in to default: - The capture negotiation now PREFERS gamescope's producer-side NV12 pod by default (PUNKTFUNK_PIPEWIRE_NV12=0 restores the packed-RGB negotiation). Codec-aware gating rides a new OutputFormat::nv12_native -> ZeroCopyPolicy::native_nv12_session edge resolved by the host facade from the session plan (pf_encode::linux_native_nv12_ok): only H265/AV1 sessions whose backend can open the raw Vulkan Video encoder ever see the NV12 pod -- an H264/Moonlight session (libav VAAPI, which would misread the two-plane buffer) keeps today's BGRx negotiation, as do the GameStream-resolve and portal-mirror paths, PyroWave, and NVENC prefs. - RGB-direct's unaligned modes default to the true-extent direct import (PUNKTFUNK_VULKAN_RGB_TRUE_EXTENT=0 restores the padded-copy staging). Guarded-tested on Van Gogh with the kernel journal watched: clean, and at 5.38 ms p50 the fastest 1080p encode path measured on that hardware. The EFC only exists on Mesa >= 26, where the codedExtent-driven session_init padding is guaranteed (verified back to Mesa 24.2). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>