gamescope excludes its pointer from the PipeWire node it feeds us and can't embed one either (`set_hw_cursor` is inert), so every gamescope stream was cursorless. Read the pointer from gamescope's nested Xwayland instead — XFixesGetCursorImage for shape/hotspot/visibility, core QueryPointer for position — and publish a CursorOverlay into the capturer's existing `cursor_live` slot, so the encoder blend composites it into the video exactly like the SPA_META_Cursor path. - pf-capture/src/linux/xfixes_cursor.rs (new): the XFixes reader. Connects to EVERY nested Xwayland (Gaming Mode runs one per --xwayland-count) and follows the focused one each tick (the display whose pointer moves), reading that display's own cursor shape. Un-premultiplies ARGB -> straight RGBA. Drop stops the thread. - Capturer::attach_gamescope_cursor + the PortalCapturer override spawn it into the same `cursor_live` slot; pf_vdisplay::gamescope_xwayland_cursor_targets discovers the (DISPLAY, XAUTHORITY) pairs via the GAMESCOPE_WAYLAND_DISPLAY scan. - host: SessionPlan.gamescope_cursor (set from the compositor at both resolve sites AND on a mid-stream Desktop->Gaming switch); the blend gate now builds the encoder blend for gamescope; a sibling composite arm attaches capturer.cursor() per tick for capture-mode clients (no channel needed). native NV12 is disabled for these sessions — that encode path can't blend the cursor (it assumes gamescope embeds the pointer), so we capture RGB and route to the proven CUDA VkSlotBlend / compute-CSC blend. - the pipewire thread no longer clobbers `cursor_live` with None on a buffer that carries no SPA_META_Cursor (gamescope) — that raced the XFixes writer and strobed the composited pointer on/off. On-glass (home-bazzite-2, RTX 5070 Ti, Gaming Mode): cursor visible + steady in Big Picture and CS2 menus, follows focus between the two Xwaylands, hidden in-game. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
61 lines
2.8 KiB
TOML
61 lines
2.8 KiB
TOML
# Frame capture (plan §7 / §W6): the Linux xdg-ScreenCast/PipeWire portal capturer and the Windows
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# IDD direct-push capturer, plus the synthetic sources + the Capturer trait, extracted into a
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# subsystem crate. Depends on the shared frame vocabulary (pf-frame), the zero-copy plumbing
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# (pf-zerocopy), and the display leaves (pf-win-display) — never on pf-encode: the encode-backend
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# facts arrive pre-resolved (ZeroCopyPolicy) and the sealed-channel delivery as a closure
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# (FrameChannelSender), so the capture→encode edge is one-way (plan §2.4).
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[package]
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name = "pf-capture"
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version.workspace = true
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edition = "2021"
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rust-version.workspace = true
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license = "MIT OR Apache-2.0"
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description = "punktfunk host frame capture: Linux PipeWire portal + Windows IDD direct-push capturers behind one Capturer trait."
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publish = false
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[dependencies]
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punktfunk-core = { path = "../punktfunk-core", features = ["quic"] }
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pf-frame = { path = "../pf-frame" }
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pf-zerocopy = { path = "../pf-zerocopy" }
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pf-win-display = { path = "../pf-win-display" }
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pf-gpu = { path = "../pf-gpu" }
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pf-host-config = { path = "../pf-host-config" }
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anyhow = "1"
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tracing = "0.1"
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[target.'cfg(target_os = "linux")'.dependencies]
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# The xdg ScreenCast + RemoteDesktop portals, and the PipeWire consumer for the capture frames.
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ashpd = { version = "0.13", features = ["screencast", "remote_desktop"] }
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pipewire = "0.9"
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libc = "0.2"
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# ashpd 0.13 uses the tokio runtime for the one-time portal handshake (control plane).
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tokio = { version = "1", features = ["rt", "rt-multi-thread", "net", "time"] }
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# XFixes cursor source for gamescope (remote-desktop-sweep Phase C): gamescope paints no
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# `SPA_META_Cursor`, so the pointer never reaches the PipeWire node. We read the shape/hotspot/
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# visibility from gamescope's nested Xwayland via XFixes instead and feed the existing cursor slot.
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# `RustConnection` is the pure-Rust default (no libxcb link → no new C dependency on the host); the
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# `xfixes` feature (auto-pulls `render` + `shape`) is what exposes GetCursorImage/SelectCursorInput.
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x11rb = { version = "0.13", default-features = false, features = ["xfixes"] }
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[target.'cfg(target_os = "windows")'.dependencies]
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# The host<->driver wire contract for the sealed frame channel (control IOCTL structs + frame header).
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pf-driver-proto = { path = "../pf-driver-proto" }
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windows = { version = "0.62", features = [
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"Win32_Foundation",
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"Win32_Security",
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"Win32_Security_Authorization",
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"Win32_Graphics_Direct3D",
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"Win32_Graphics_Direct3D11",
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"Win32_Graphics_Direct3D_Fxc",
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"Win32_Graphics_Dxgi",
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"Win32_Graphics_Dxgi_Common",
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"Win32_Graphics_Gdi",
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"Win32_System_LibraryLoader",
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"Win32_System_StationsAndDesktops",
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"Win32_System_Memory",
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"Win32_System_Threading",
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"Win32_UI_HiDpi",
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"Win32_UI_Input_KeyboardAndMouse",
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"Win32_UI_WindowsAndMessaging",
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] }
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