Struct GPUBackend 

pub struct GPUBackend {
    pub backend_type: BackendType,
    pub device: Option<Arc<Device>>,
    pub queue: Option<Arc<Queue>>,
    pub surface: Option<Surface<'static>>,
    pub config: Option<SurfaceConfiguration>,
}

GPU backend abstraction - OPTIONAL helper for web contexts

This struct is maintained for backward compatibility and web-based usage. For native window rendering (e.g., Python bindings), renderers can be created directly with device/queue/config without going through GPUBackend.

Design rationale:

• Native contexts: Create device/queue/surface directly, pass to renderer
• Web contexts: Use GPUBackend as a convenient factory/manager

Fields

backend_type: BackendType

device: Option<Arc<Device>>

queue: Option<Arc<Queue>>

surface: Option<Surface<'static>>

config: Option<SurfaceConfiguration>

Implementations

impl GPUBackend

pub async fn new() -> Result<Self, String>

Create a new GPU backend with automatic detection

pub fn configure_surface( &mut self, surface: Surface<'static>, width: u32, height: u32, ) -> Result<(), String>

Configure surface for rendering

pub fn device(&self) -> Result<&Device, String>

Get device reference

pub fn queue(&self) -> Result<&Queue, String>

Get queue reference