import * as THREE from "three";
import { CBTextureType } from "./CBTypes";
import { CanvasContext } from "react-three-fiber";
export declare enum CBTextureLoadErrorReason {
    None = "none",
    Aborted = "aborted",
    Timeout = "timeout",
    InvalidUrl = "invalid-url"
}
export declare function getGlobalCanvas(label: string): HTMLCanvasElement;
export declare function destroyAllCanvases(): void;
export declare function nearestPowerOf2(n: number): number;
export declare class CBTextureLoader {
    context: CanvasContext;
    textureLoader: THREE.TextureLoader;
    imageLoader: THREE.ImageLoader;
    image?: HTMLImageElement | null;
    constructor(context: CanvasContext);
    private _aborted;
    abort(): void;
    load(type: CBTextureType, url: string, canvas: HTMLCanvasElement | null, onLoad?: (texture: THREE.Texture, width: number, height: number) => void, onProgress?: (event: ProgressEvent) => void, onError?: (event: CBTextureLoadError) => void): void;
    dispose(): void;
}
export declare class CBTextureLoadError extends Error {
    type: CBTextureType;
    path: string;
    reason: CBTextureLoadErrorReason;
    constructor(type: CBTextureType, path: string, _reason?: CBTextureLoadErrorReason, message?: string);
}