Struct SoftwareRenderer 

pub struct SoftwareRenderer { /* private fields */ }

Rasterizes scenes on the CPU. Cheap to construct and reusable across frames; the underlying oxideav renderer also caches per-subtree work.

Implementations

impl SoftwareRenderer

pub fn new() -> Self

pub fn with_background(self, color: Color) -> Self

Set the canvas clear color (default: transparent).

pub fn render(&self, scene: Scene, scale: ScaleFactor) -> Pixmap

Rasterize scene at the given scale, returning a physical-pixel Pixmap.

The scene’s logical size combined with scale determines the output resolution; the rasterizer maps logical → physical via the frame’s view box, so widgets are authored once in logical pixels and stay crisp at any DPI.

pub fn render_at(&self, scene: Scene, physical: PhysicalSize) -> Pixmap

Rasterize scene into a buffer of exactly physical pixels.

pub fn render_region( &self, scene: Scene, view: Rect, physical: PhysicalSize, ) -> Pixmap

Rasterize only view — a logical sub-rect of scene — into a buffer of exactly physical pixels, which the caller picks to match the integer device-pixel rect it will blit/present (so there is no resampling seam).

Pixels outside view are clipped by the canvas bounds; the background fill makes the region opaque, so the result can be composited with a straight copy (see Pixmap::blit). This is the area-repaint path: a hover change re-rasterizes two small button rects instead of the window.

Trait Implementations

impl Debug for SoftwareRenderer

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SoftwareRenderer

fn default() -> SoftwareRenderer

Returns the “default value” for a type.