x11: add frameclock_x11, implement subduction_backend_x11 - #49
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Add `frameclock_x11`, timing adapters that convert Present extension completions (`ust`/`msc`) into frameclock ticks and per-pixmap present feedback. Assumes the Present extension, with no legacy fallbacks. Implement `subduction_backend_x11` on it: `X11PresentSource` is fed a window's decoded Present events, and `X11Compositor` presents to a top-level X11 window, compositing the layer tree itself through `subduction_backend_wgpu` onto a wgpu surface. Exclude both crates from the Windows, wasm, and bare-metal no_std CI jobs.
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Add
frameclock_x11, timing adapters that convert Present extension completions (ust/msc) into frameclock ticks and per-pixmap present feedback.Assumes the Present extension, with no legacy fallbacks.
Implement
subduction_backend_x11on it:X11PresentSourceis fed a window's decoded Present events, andX11Compositorpresents to a top-level X11 window, compositing the layer tree itself throughsubduction_backend_wgpuonto a wgpu surface.Exclude both crates from the Windows, wasm, and bare-metal no_std CI jobs.