enricobuehlerandClaude Opus 4.8
e59634a578
The M2c redesign (design/remote-desktop-sweep.md §8): the IddCx hardware- cursor query is alpha-only by design — IDDCX_CURSOR_SHAPE_TYPE has no monochrome value, the OS pre-converts monochrome to masked-color, and masked-color delivery is dead code on modern builds (proven on-glass at every ColorXorCursorSupport level). The driver keeps its hardware cursor declared (XOR FULL) purely so DWM excludes every cursor type from the IDD frame; the SHAPE now comes from a GDI poller in the capture host — which runs as SYSTEM inside the interactive session, so no helper process is needed. CursorPoller (idd_push/cursor_poll.rs, the RustDesk/WebRTC/OBS pattern): ~60 Hz GetCursorInfo on a dedicated thread; rasterise via CopyIcon→GetIconInfo→GetDIBits only when the HCURSOR value changes; monochrome via the WebRTC truth table with invert pixels as opaque black plus a white outline; AND-mask alpha for alpha-less color cursors; CURSOR_SUPPRESSED = hidden; per-output visibility via the target's desktop rect; per-monitor-V2 DPI awareness thread-scoped; input-desktop reattach on failure + 2 s cadence (GetCursorInfo on a stale desktop succeeds with stale data). Spawned iff the cursor channel was delivered; a live poller is the sole overlay source (no serial-namespace mixing) — the driver shm read remains as fallback if the poller dies. Not chosen: DXGI Desktop Duplication GetFramePointerShape — PointerPosition.Visible goes stale under injected-only input on current Win11 (Sunshine #5293, exactly our topology), it burns one of the session's four duplication slots, and IDD-output metadata has conflicting field reports. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
55 lines
2.3 KiB
TOML
55 lines
2.3 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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[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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