//! Real (non-stub) headless GPU rendering for OxiUI, built on [`wgpu`].
//!
//! This module implements [`oxiui_core::paint::RenderBackend`] on a GPU target
//! that is created *headlessly* — there is no window or swap-chain surface.
//! Draw commands are rasterised into an offscreen colour texture which can be
//! read back to CPU memory for testing or off-screen export.
//!
//! Sub-modules:
//!
//! - [`device`] — headless `Instance`/adapter/device/queue + offscreen texture.
//! - [`pipeline`] — `solid.wgsl` and `gradient.wgsl` compiled pipelines.
//! - [`buffer`] — `#[repr(C)]` `Pod` vertex / uniform layouts + quad emitters.
//! - [`tessellator`] — CPU path flattening and stroke/fill tessellation.
//! - [`renderer`] — [`WgpuBackend`] and the `RenderBackend` implementation.
pub use ;
pub use ;
pub use ;
pub use WgpuBackend;