Module presenter 

The Presenter trait and WindowHandle. The Presenter trait: what a renderer crate implements to rasterize a grid and present it to a window surface.

Presenter is an Output supertrait plus window-surface operations, with no input methods: the event loop owns input, and WindowBackend forwards translated events into its own queue instead.

Presenter	present()	init_surface()
SoftwareRenderer (retroglyph-software)	Copies pixel buffer to softbuffer surface	Creates softbuffer::Context + Surface
GlRenderer (retroglyph-gl)	Instanced draw + swaps buffers	Creates a GL context (glutin native / WebGL2 wasm) from the window
WgpuRenderer (retroglyph-wgpu)	Submits a render pass + presents the swap chain	Creates a wgpu::Surface, Device, and Queue

See the crate-level docs (crate root, “DPI, scale, and the resize contract” and “Threading model” sections) for the physical-pixel/no-auto-scaling contract on cell_size, the sub-cell-remainder behavior on resize_surface, and the single-threaded execution model every Presenter implementation runs under.

Enums

GenericSurfaceError

A ready-made, string-backed SurfaceError for presenters whose underlying surface library reports failures as opaque strings rather than a structured error enum.

Traits

Presenter

A renderer that rasterizes grid content and presents it to a window surface.

RecoverableError

A surface-lifecycle error that can optionally signal whether it’s worth retrying.

WindowHandle

A window/display handle pair, as one trait.

Functions

cell_art_glyph

The glyph a Presenter should paint art (a bitmap-font glyph or a tileset sprite) for, or None when this cell draws none.