Module render 

Available on crate feature toolkit only.

Shared egui → egui_glow rendering core on an EGL/GLES context bound to a Wayland surface, plus zero-copy dma-buf → GL texture import.

This is the toolkit half of wlr-capture: any windowing host (the wlr-chooser layer-shell overlay, the wlr-pip xdg-toplevel mirror, …) binds a Gpu to its wl_surface and drives one egui frame per repaint with Gpu::render. The host owns the GL context, so it (via the importer handed to the UI closure) turns capture dma-bufs into drawable textures.

Structs

Gpu

EGL/GL state bound to a wl_surface, created once the surface has its first size. Owns the egui_glow painter and the dma-buf texture cache.

Traits

DmabufImporter

Host-side importer for GPU dma-buf frames. The windowing host owns the GL context, so it (not a toolkit-agnostic UI) turns a dma-buf into a drawable egui texture. Returns the texture id + source pixel size.