render_backend
Submodules
Structs
CapturedFrame
CPU-readable screenshot payload captured from a rendered frame.
Properties
width
Type: u32
height
Type: u32
rgba
Type: Vec<u8>
GpuContext
Shared GPU device context used by sibling render surfaces.
Image
Decoded RGBA image data ready for upload as a GPU texture.
Properties
rgba
Type: Vec<u8>
pixel_width
Type: u32
pixel_height
Type: u32
RenderBackend
Low-level wgpu backend that owns surface, pipeline, and GPU buffers.
Implementations
get_clip_depth
pub fn get_clip_depth(&mut self) -> u32Current stencil clip depth.
max_surface_dimension
pub fn max_surface_dimension(&self) -> u32Maximum texture dimension supported by the active adapter.
resize
pub fn resize(&mut self, width: u32, height: u32)Resize both the physical surface and logical viewport.
resize_surface
pub fn resize_surface(&mut self, width: u32, height: u32)Resize the backing surface, clamping to device limits.
set_viewport
pub fn set_viewport(&mut self, width: f32, height: f32, dpr: [f32; 2])Update logical viewport uniforms without reallocating the surface.
RenderConfig
GPU resource sizing and initial surface configuration.
Properties
debug
Type: bool
initial_width
Type: u32
initial_height
Type: u32
initial_dpr
Type: [f32; 2]
Implementations
new
pub fn new(_debug: bool, width: u32, height: u32, dpr: [f32; 2]) -> SelfConstruct default buffer capacities for an initial surface size.
with_browser_premultiplied_alpha
pub fn with_browser_premultiplied_alpha(self, enabled: bool) -> SelfRequest premultiplied browser canvas alpha for WebGPU surfaces.
wgpu's web backend currently reports only Opaque alpha in surface capabilities, but its
configure path accepts PreMultiplied and maps it to GPUCanvasAlphaMode::Premultiplied.
Pax needs that for transparent browser-owned scroller islands.