Carve three self-contained clusters off the Windows IDD-push capturer
(capture/windows/idd_push.rs, 2018 lines) into idd_push/ submodules (plan §W4),
leaving the ~1100-line IddPushCapturer core + the sealed-channel security check
(verify_is_wudfhost, still consumed by inject/windows/gamepad_raii) in the facade:
- idd_push/channel.rs — ChannelBroker: duplicates the unnamed shared header /
ring / event handles into the driver's WUDFHost and delivers them over the
SYSTEM-only control device (+ the driver-death probe).
- idd_push/descriptor.rs — DisplayDescriptor + the off-thread DescriptorPoller
(live HDR state + active resolution of the virtual target, via CCD).
- idd_push/stall.rs — Stall + StallWatch: the DWM-composition-hole diagnostic.
Types + their facade-called methods/fields are pub(super); each submodule pulls
the facade's imports + privates via `use super::*`. Pure move; no behavior
change. Windows host clippy (nvenc,amf-qsv, all-targets) + fmt green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
