Module gpu 

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.

Re-exports

pub use buffer::Globals;

pub use buffer::GradientVertex;

pub use buffer::Vertex;

pub use device::GpuContext;

pub use device::TARGET_FORMAT;

pub use pipeline::GradientPipeline;

pub use pipeline::SolidPipeline;

pub use renderer::WgpuBackend;

Modules

buffer

Vertex / uniform data layouts for the headless solid-fill + gradient pipelines.

device

Headless wgpu device acquisition and the offscreen colour target.

pipeline

Render-pipeline construction for the solid-fill / SDF shader and the gradient pipeline.

renderer

WgpuBackend: headless GPU RenderBackend implementing Tier 1 primitives and gradient fills.

tessellator

CPU-side path tessellator for DrawCommand::FillPath and DrawCommand::StrokePath.