/**
 * Abstraction over canvas: the scene-graph does not know whether it is DOM or a Node environment.
 * Implementations: DomCanvas (browser), @napi-rs/canvas adapter (snapshot tests, later).
 */
export interface SceneCanvas {
    readonly width: number;
    readonly height: number;
    /** Device scale (devicePixelRatio in the browser, 1 in Node). */
    readonly pixelRatio: number;
    readonly context: CanvasRenderingContext2D;
    /** Source for drawImage (PNG export; HTMLCanvasElement etc.). */
    readonly image: unknown;
    resize(width: number, height: number): void;
    destroy(): void;
}
export type CanvasFactory = (width: number, height: number) => SceneCanvas;